File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
new file mode 100644
index 0000000..1f6893e
--- /dev/null
+++ b/drivers/net/usb/Kconfig
@@ -0,0 +1,600 @@
+#
+# USB Network devices configuration
+#
+comment "Host-side USB support is needed for USB Network Adapter support"
+ depends on !USB && NET
+
+menuconfig USB_NET_DRIVERS
+ tristate "USB Network Adapters"
+ default USB if USB
+ depends on USB && NET
+
+if USB_NET_DRIVERS
+
+config USB_CATC
+ tristate "USB CATC NetMate-based Ethernet device support"
+ select CRC32
+ ---help---
+ Say Y if you want to use one of the following 10Mbps USB Ethernet
+ device based on the EL1210A chip. Supported devices are:
+ Belkin F5U011
+ Belkin F5U111
+ CATC NetMate
+ CATC NetMate II
+ smartBridges smartNIC
+
+ This driver makes the adapter appear as a normal Ethernet interface,
+ typically on eth0, if it is the only ethernet device, or perhaps on
+ eth1, if you have a PCI or ISA ethernet card installed.
+
+ To compile this driver as a module, choose M here: the
+ module will be called catc.
+
+config USB_KAWETH
+ tristate "USB KLSI KL5USB101-based ethernet device support"
+ ---help---
+ Say Y here if you want to use one of the following 10Mbps only
+ USB Ethernet adapters based on the KLSI KL5KUSB101B chipset:
+ 3Com 3C19250
+ ADS USB-10BT
+ ATEN USB Ethernet
+ ASANTE USB To Ethernet Adapter
+ AOX Endpoints USB Ethernet
+ Correga K.K.
+ D-Link DSB-650C and DU-E10
+ Entrega / Portgear E45
+ I-O DATA USB-ET/T
+ Jaton USB Ethernet Device Adapter
+ Kingston Technology USB Ethernet Adapter
+ Linksys USB10T
+ Mobility USB-Ethernet Adapter
+ NetGear EA-101
+ Peracom Enet and Enet2
+ Portsmith Express Ethernet Adapter
+ Shark Pocket Adapter
+ SMC 2202USB
+ Sony Vaio port extender
+
+ This driver is likely to work with most 10Mbps only USB Ethernet
+ adapters, including some "no brand" devices. It does NOT work on
+ SmartBridges smartNIC or on Belkin F5U111 devices - you should use
+ the CATC NetMate driver for those. If you are not sure which one
+ you need, select both, and the correct one should be selected for
+ you.
+
+ This driver makes the adapter appear as a normal Ethernet interface,
+ typically on eth0, if it is the only ethernet device, or perhaps on
+ eth1, if you have a PCI or ISA ethernet card installed.
+
+ To compile this driver as a module, choose M here: the
+ module will be called kaweth.
+
+config USB_PEGASUS
+ tristate "USB Pegasus/Pegasus-II based ethernet device support"
+ select MII
+ ---help---
+ Say Y here if you know you have Pegasus or Pegasus-II based adapter.
+ If in doubt then look at <file:drivers/net/usb/pegasus.h> for the
+ complete list of supported devices.
+
+ If your particular adapter is not in the list and you are _sure_ it
+ is Pegasus or Pegasus II based then send me
+ <petkan@users.sourceforge.net> vendor and device IDs.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pegasus.
+
+config USB_RTL8150
+ tristate "USB RTL8150 based ethernet device support"
+ select MII
+ help
+ Say Y here if you have RTL8150 based usb-ethernet adapter.
+ Send me <petkan@users.sourceforge.net> any comments you may have.
+ You can also check for updates at <http://pegasus2.sourceforge.net/>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rtl8150.
+
+config USB_RTL8152
+ tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
+ select MII
+ help
+ This option adds support for Realtek RTL8152 based USB 2.0
+ 10/100 Ethernet adapters and RTL8153 based USB 3.0 10/100/1000
+ Ethernet adapters.
+
+ To compile this driver as a module, choose M here: the
+ module will be called r8152.
+
+config USB_LAN78XX
+ tristate "Microchip LAN78XX Based USB Ethernet Adapters"
+ select MII
+ select PHYLIB
+ select MICROCHIP_PHY
+ help
+ This option adds support for Microchip LAN78XX based USB 2
+ & USB 3 10/100/1000 Ethernet adapters.
+
+ To compile this driver as a module, choose M here: the
+ module will be called lan78xx.
+
+config USB_USBNET
+ tristate "Multi-purpose USB Networking Framework"
+ select MII
+ ---help---
+ This driver supports several kinds of network links over USB,
+ with "minidrivers" built around a common network driver core
+ that supports deep queues for efficient transfers. (This gives
+ better performance with small packets and at high speeds).
+
+ The USB host runs "usbnet", and the other end of the link might be:
+
+ - Another USB host, when using USB "network" or "data transfer"
+ cables. These are often used to network laptops to PCs, like
+ "Laplink" parallel cables or some motherboards. These rely
+ on specialized chips from many suppliers.
+
+ - An intelligent USB gadget, perhaps embedding a Linux system.
+ These include PDAs running Linux (iPaq, Yopy, Zaurus, and
+ others), and devices that interoperate using the standard
+ CDC-Ethernet specification (including many cable modems).
+
+ - Network adapter hardware (like those for 10/100 Ethernet) which
+ uses this driver framework.
+
+ The link will appear with a name like "usb0", when the link is
+ a two-node link, or "eth0" for most CDC-Ethernet devices. Those
+ two-node links are most easily managed with Ethernet Bridging
+ (CONFIG_BRIDGE) instead of routing.
+
+ For more information see <http://www.linux-usb.org/usbnet/>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called usbnet.
+
+config USB_NET_AX8817X
+ tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
+ depends on USB_USBNET
+ select CRC32
+ select PHYLIB
+ default y
+ help
+ This option adds support for ASIX AX88xxx based USB 2.0
+ 10/100 Ethernet adapters.
+
+ This driver should work with at least the following devices:
+ * Aten UC210T
+ * ASIX AX88172
+ * Billionton Systems, USB2AR
+ * Billionton Systems, GUSB2AM-1G-B
+ * Buffalo LUA-U2-KTX
+ * Corega FEther USB2-TX
+ * D-Link DUB-E100
+ * Hawking UF200
+ * Linksys USB200M
+ * Netgear FA120
+ * Sitecom LN-029
+ * Sitecom LN-028
+ * Intellinet USB 2.0 Ethernet
+ * ST Lab USB 2.0 Ethernet
+ * TrendNet TU2-ET100
+
+ This driver creates an interface named "ethX", where X depends on
+ what other networking devices you have in use.
+
+config USB_NET_AX88179_178A
+ tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
+ depends on USB_USBNET
+ select CRC32
+ select PHYLIB
+ default y
+ help
+ This option adds support for ASIX AX88179 based USB 3.0/2.0
+ to Gigabit Ethernet adapters.
+
+ This driver should work with at least the following devices:
+ * ASIX AX88179
+ * ASIX AX88178A
+ * Sitcomm LN-032
+
+ This driver creates an interface named "ethX", where X depends on
+ what other networking devices you have in use.
+
+config USB_NET_CDCETHER
+ tristate "CDC Ethernet support (smart devices such as cable modems)"
+ depends on USB_USBNET
+ default y
+ help
+ This option supports devices conforming to the Communication Device
+ Class (CDC) Ethernet Control Model, a specification that's easy to
+ implement in device firmware. The CDC specifications are available
+ from <http://www.usb.org/>.
+
+ CDC Ethernet is an implementation option for DOCSIS cable modems
+ that support USB connectivity, used for non-Microsoft USB hosts.
+ The Linux-USB CDC Ethernet Gadget driver is an open implementation.
+ This driver should work with at least the following devices:
+
+ * Dell Wireless 5530 HSPA
+ * Ericsson PipeRider (all variants)
+ * Ericsson Mobile Broadband Module (all variants)
+ * Motorola (DM100 and SB4100)
+ * Broadcom Cable Modem (reference design)
+ * Toshiba (PCX1100U and F3507g/F3607gw)
+ * ...
+
+ This driver creates an interface named "ethX", where X depends on
+ what other networking devices you have in use. However, if the
+ IEEE 802 "local assignment" bit is set in the address, a "usbX"
+ name is used instead.
+
+config USB_NET_CDC_EEM
+ tristate "CDC EEM support"
+ depends on USB_USBNET
+ help
+ This option supports devices conforming to the Communication Device
+ Class (CDC) Ethernet Emulation Model, a specification that's easy to
+ implement in device firmware. The CDC EEM specifications are available
+ from <http://www.usb.org/>.
+
+ This driver creates an interface named "ethX", where X depends on
+ what other networking devices you have in use. However, if the
+ IEEE 802 "local assignment" bit is set in the address, a "usbX"
+ name is used instead.
+
+config USB_NET_CDC_NCM
+ tristate "CDC NCM support"
+ depends on USB_USBNET
+ default y
+ help
+ This driver provides support for CDC NCM (Network Control Model
+ Device USB Class Specification). The CDC NCM specification is
+ available from <http://www.usb.org/>.
+
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module.
+
+ This driver should work with at least the following devices:
+ * ST-Ericsson M700 LTE FDD/TDD Mobile Broadband Modem (ref. design)
+ * ST-Ericsson M5730 HSPA+ Mobile Broadband Modem (reference design)
+ * ST-Ericsson M570 HSPA+ Mobile Broadband Modem (reference design)
+ * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design)
+ * Ericsson F5521gw Mobile Broadband Module
+
+config USB_NET_HUAWEI_CDC_NCM
+ tristate "Huawei NCM embedded AT channel support"
+ depends on USB_USBNET
+ select USB_WDM
+ select USB_NET_CDC_NCM
+ help
+ This driver supports huawei-style NCM devices, that use NCM as a
+ transport for other protocols, usually an embedded AT channel.
+ Good examples are:
+ * Huawei E3131
+ * Huawei E3251
+
+ To compile this driver as a module, choose M here: the module will be
+ called huawei_cdc_ncm.ko.
+
+config USB_NET_CDC_MBIM
+ tristate "CDC MBIM support"
+ depends on USB_USBNET
+ select USB_WDM
+ select USB_NET_CDC_NCM
+ help
+ This driver provides support for CDC MBIM (Mobile Broadband
+ Interface Model) devices. The CDC MBIM specification is
+ available from <http://www.usb.org/>.
+
+ MBIM devices require configuration using the management
+ protocol defined by the MBIM specification. This driver
+ provides unfiltered access to the MBIM control channel
+ through the associated /dev/cdc-wdmx character device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cdc_mbim.
+
+config USB_NET_DM9601
+ tristate "Davicom DM96xx based USB 10/100 ethernet devices"
+ depends on USB_USBNET
+ select CRC32
+ help
+ This option adds support for Davicom DM9601/DM9620/DM9621A
+ based USB 10/100 Ethernet adapters.
+
+config USB_NET_SR9700
+ tristate "CoreChip-sz SR9700 based USB 1.1 10/100 ethernet devices"
+ depends on USB_USBNET
+ select CRC32
+ help
+ This option adds support for CoreChip-sz SR9700 based USB 1.1
+ 10/100 Ethernet adapters.
+
+config USB_NET_SR9800
+ tristate "CoreChip-sz SR9800 based USB 2.0 10/100 ethernet devices"
+ depends on USB_USBNET
+ select CRC32
+ ---help---
+ Say Y if you want to use one of the following 100Mbps USB Ethernet
+ device based on the CoreChip-sz SR9800 chip.
+
+ This driver makes the adapter appear as a normal Ethernet interface,
+ typically on eth0, if it is the only ethernet device, or perhaps on
+ eth1, if you have a PCI or ISA ethernet card installed.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sr9800.
+
+config USB_NET_SMSC75XX
+ tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices"
+ depends on USB_USBNET
+ select BITREVERSE
+ select CRC16
+ select CRC32
+ help
+ This option adds support for SMSC LAN75XX based USB 2.0
+ Gigabit Ethernet adapters.
+
+config USB_NET_SMSC95XX
+ tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
+ depends on USB_USBNET
+ select BITREVERSE
+ select CRC16
+ select CRC32
+ help
+ This option adds support for SMSC LAN95XX based USB 2.0
+ 10/100 Ethernet adapters.
+
+config USB_NET_GL620A
+ tristate "GeneSys GL620USB-A based cables"
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a host-to-host cable,
+ or PC2PC motherboard, with this chip.
+
+ Note that the half-duplex "GL620USB" is not supported.
+
+config USB_NET_NET1080
+ tristate "NetChip 1080 based cables (Laplink, ...)"
+ default y
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a host-to-host cable based
+ on this design: one NetChip 1080 chip and supporting logic,
+ optionally with LEDs that indicate traffic
+
+config USB_NET_PLUSB
+ tristate "Prolific PL-2301/2302/25A1/27A1 based cables"
+ # if the handshake/init/reset problems, from original 'plusb',
+ # are ever resolved ... then remove "experimental"
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a host-to-host cable
+ with one of these chips.
+
+config USB_NET_MCS7830
+ tristate "MosChip MCS7830 based Ethernet adapters"
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a 10/100 Ethernet USB2
+ adapter based on the MosChip 7830 controller. This includes
+ adapters marketed under the DeLOCK brand.
+
+config USB_NET_RNDIS_HOST
+ tristate "Host for RNDIS and ActiveSync devices"
+ depends on USB_USBNET
+ select USB_NET_CDCETHER
+ help
+ This option enables hosting "Remote NDIS" USB networking links,
+ as encouraged by Microsoft (instead of CDC Ethernet!) for use in
+ various devices that may only support this protocol. A variant
+ of this protocol (with even less public documentation) seems to
+ be at the root of Microsoft's "ActiveSync" too.
+
+ Avoid using this protocol unless you have no better options.
+ The protocol specification is incomplete, and is controlled by
+ (and for) Microsoft; it isn't an "Open" ecosystem or market.
+
+config USB_NET_CDC_SUBSET
+ tristate "Simple USB Network Links (CDC Ethernet subset)"
+ depends on USB_USBNET
+ default y
+ help
+ This driver module supports USB network devices that can work
+ without any device-specific information. Select it if you have
+ one of these drivers.
+
+ Note that while many USB host-to-host cables can work in this mode,
+ that may mean not being able to talk to Win32 systems or more
+ commonly not being able to handle certain events (like replugging
+ the host on the other end) very well. Also, these devices will
+ not generally have permanently assigned Ethernet addresses.
+
+config USB_ALI_M5632
+ bool "ALi M5632 based 'USB 2.0 Data Link' cables"
+ depends on USB_NET_CDC_SUBSET
+ help
+ Choose this option if you're using a host-to-host cable
+ based on this design, which supports USB 2.0 high speed.
+
+config USB_AN2720
+ bool "AnchorChips 2720 based cables (Xircom PGUNET, ...)"
+ depends on USB_NET_CDC_SUBSET
+ help
+ Choose this option if you're using a host-to-host cable
+ based on this design. Note that AnchorChips is now a
+ Cypress brand.
+
+config USB_BELKIN
+ bool "eTEK based host-to-host cables (Advance, Belkin, ...)"
+ depends on USB_NET_CDC_SUBSET
+ default y
+ help
+ Choose this option if you're using a host-to-host cable
+ based on this design: two NetChip 2890 chips and an Atmel
+ microcontroller, with LEDs that indicate traffic.
+
+config USB_ARMLINUX
+ bool "Embedded ARM Linux links (iPaq, ...)"
+ depends on USB_NET_CDC_SUBSET
+ default y
+ help
+ Choose this option to support the "usb-eth" networking driver
+ used by most of the ARM Linux community with device controllers
+ such as the SA-11x0 and PXA-25x UDCs, or the tftp capabilities
+ in some PXA versions of the "blob" boot loader.
+
+ Linux-based "Gumstix" PXA-25x based systems use this protocol
+ to talk with other Linux systems.
+
+ Although the ROMs shipped with Sharp Zaurus products use a
+ different link level framing protocol, you can have them use
+ this simpler protocol by installing a different kernel.
+
+config USB_EPSON2888
+ bool "Epson 2888 based firmware (DEVELOPMENT)"
+ depends on USB_NET_CDC_SUBSET
+ help
+ Choose this option to support the usb networking links used
+ by some sample firmware from Epson.
+
+config USB_KC2190
+ bool "KT Technology KC2190 based cables (InstaNet)"
+ depends on USB_NET_CDC_SUBSET
+ help
+ Choose this option if you're using a host-to-host cable
+ with one of these chips.
+
+config USB_NET_ZAURUS
+ tristate "Sharp Zaurus (stock ROMs) and compatible"
+ depends on USB_USBNET
+ select USB_NET_CDCETHER
+ select CRC32
+ default y
+ help
+ Choose this option to support the usb networking links used by
+ Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500.
+ This also supports some related device firmware, as used in some
+ PDAs from Olympus and some cell phones from Motorola.
+
+ If you install an alternate image, such as the Linux 2.6 based
+ versions of OpenZaurus, you should no longer need to support this
+ protocol. Only the "eth-fd" or "net_fd" drivers in these devices
+ really need this non-conformant variant of CDC Ethernet (or in
+ some cases CDC MDLM) protocol, not "g_ether".
+
+config USB_NET_CX82310_ETH
+ tristate "Conexant CX82310 USB ethernet port"
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a Conexant CX82310-based ADSL
+ router with USB ethernet port. This driver is for routers only,
+ it will not work with ADSL modems (use cxacru driver instead).
+
+config USB_NET_KALMIA
+ tristate "Samsung Kalmia based LTE USB modem"
+ depends on USB_USBNET
+ help
+ Choose this option if you have a Samsung Kalmia based USB modem
+ as Samsung GT-B3730.
+
+ To compile this driver as a module, choose M here: the
+ module will be called kalmia.
+
+config USB_NET_QMI_WWAN
+ tristate "QMI WWAN driver for Qualcomm MSM based 3G and LTE modems"
+ depends on USB_USBNET
+ select USB_WDM
+ help
+ Support WWAN LTE/3G devices based on Qualcomm Mobile Data Modem
+ (MDM) chipsets. Examples of such devices are
+ * Huawei E392/E398
+
+ This driver will only drive the ethernet part of the chips.
+ The devices require additional configuration to be usable.
+ Multiple management interfaces with linux drivers are
+ available:
+
+ * option: AT commands on /dev/ttyUSBx
+ * cdc-wdm: Qualcomm MSM Interface (QMI) protocol on /dev/cdc-wdmx
+
+ A modem manager with support for QMI is recommended.
+
+ To compile this driver as a module, choose M here: the
+ module will be called qmi_wwan.
+
+config USB_HSO
+ tristate "Option USB High Speed Mobile Devices"
+ depends on USB && RFKILL && TTY
+ default n
+ help
+ Choose this option if you have an Option HSDPA/HSUPA card.
+ These cards support downlink speeds of 7.2Mbps or greater.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hso.
+
+config USB_NET_INT51X1
+ tristate "Intellon PLC based usb adapter"
+ depends on USB_USBNET
+ help
+ Choose this option if you're using a 14Mb USB-based PLC
+ (Powerline Communications) solution with an Intellon
+ INT51x1/INT5200 chip, like the "devolo dLan duo".
+
+config USB_CDC_PHONET
+ tristate "CDC Phonet support"
+ depends on PHONET && USB_USBNET
+ help
+ Choose this option to support the Phonet interface to a Nokia
+ cellular modem, as found on most Nokia handsets with the
+ "PC suite" USB profile.
+
+config USB_IPHETH
+ tristate "Apple iPhone USB Ethernet driver"
+ default n
+ ---help---
+ Module used to share Internet connection (tethering) from your
+ iPhone (Original, 3G and 3GS) to your system.
+ Note that you need userspace libraries and programs that are needed
+ to pair your device with your system and that understand the iPhone
+ protocol.
+
+ For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
+
+config USB_SIERRA_NET
+ tristate "USB-to-WWAN Driver for Sierra Wireless modems"
+ depends on USB_USBNET
+ help
+ Choose this option if you have a Sierra Wireless USB-to-WWAN device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sierra_net.
+
+config USB_VL600
+ tristate "LG VL600 modem dongle"
+ depends on USB_NET_CDCETHER && TTY
+ select USB_ACM
+ help
+ Select this if you want to use an LG Electronics 4G/LTE usb modem
+ called VL600. This driver only handles the ethernet
+ interface exposed by the modem firmware. To establish a connection
+ you will first need a userspace program that sends the right
+ command to the modem through its CDC ACM port, and most
+ likely also a DHCP client. See this thread about using the
+ 4G modem from Verizon:
+
+ http://ubuntuforums.org/showpost.php?p=10589647&postcount=17
+
+config USB_NET_CH9200
+ tristate "QingHeng CH9200 USB ethernet support"
+ depends on USB_USBNET
+ select MII
+ help
+ Choose this option if you have a USB ethernet adapter with a QinHeng
+ CH9200 chipset.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ch9200.
+
+endif # USB_NET_DRIVERS
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
new file mode 100644
index 0000000..b5f0406
--- /dev/null
+++ b/drivers/net/usb/Makefile
@@ -0,0 +1,41 @@
+#
+# Makefile for USB Network drivers
+#
+
+obj-$(CONFIG_USB_CATC) += catc.o
+obj-$(CONFIG_USB_KAWETH) += kaweth.o
+obj-$(CONFIG_USB_PEGASUS) += pegasus.o
+obj-$(CONFIG_USB_RTL8150) += rtl8150.o
+obj-$(CONFIG_USB_RTL8152) += r8152.o
+obj-$(CONFIG_USB_HSO) += hso.o
+obj-$(CONFIG_USB_LAN78XX) += lan78xx.o
+obj-$(CONFIG_USB_NET_AX8817X) += asix.o
+asix-y := asix_devices.o asix_common.o ax88172a.o
+obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o
+obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
+obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
+obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
+obj-$(CONFIG_USB_NET_SR9700) += sr9700.o
+obj-$(CONFIG_USB_NET_SR9800) += sr9800.o
+obj-$(CONFIG_USB_NET_SMSC75XX) += smsc75xx.o
+obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o
+obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
+obj-$(CONFIG_USB_NET_NET1080) += net1080.o
+obj-$(CONFIG_USB_NET_PLUSB) += plusb.o
+obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o
+obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o
+obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o
+obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o
+obj-$(CONFIG_USB_USBNET) += usbnet.o
+obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o
+obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o
+obj-$(CONFIG_USB_NET_KALMIA) += kalmia.o
+obj-$(CONFIG_USB_IPHETH) += ipheth.o
+obj-$(CONFIG_USB_SIERRA_NET) += sierra_net.o
+obj-$(CONFIG_USB_NET_CX82310_ETH) += cx82310_eth.o
+obj-$(CONFIG_USB_NET_CDC_NCM) += cdc_ncm.o
+obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM) += huawei_cdc_ncm.o
+obj-$(CONFIG_USB_VL600) += lg-vl600.o
+obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o
+obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o
+obj-$(CONFIG_USB_NET_CH9200) += ch9200.o
diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
new file mode 100644
index 0000000..a2d3ea6
--- /dev/null
+++ b/drivers/net/usb/asix.h
@@ -0,0 +1,234 @@
+/*
+ * ASIX AX8817X based USB 2.0 Ethernet Devices
+ * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
+ * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
+ * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
+ * Copyright (c) 2002-2003 TiVo Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _ASIX_H
+#define _ASIX_H
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+#include <linux/if_vlan.h>
+
+#define DRIVER_VERSION "22-Dec-2011"
+#define DRIVER_NAME "asix"
+
+/* ASIX AX8817X based USB 2.0 Ethernet Devices */
+
+#define AX_CMD_SET_SW_MII 0x06
+#define AX_CMD_READ_MII_REG 0x07
+#define AX_CMD_WRITE_MII_REG 0x08
+#define AX_CMD_SET_HW_MII 0x0a
+#define AX_CMD_READ_EEPROM 0x0b
+#define AX_CMD_WRITE_EEPROM 0x0c
+#define AX_CMD_WRITE_ENABLE 0x0d
+#define AX_CMD_WRITE_DISABLE 0x0e
+#define AX_CMD_READ_RX_CTL 0x0f
+#define AX_CMD_WRITE_RX_CTL 0x10
+#define AX_CMD_READ_IPG012 0x11
+#define AX_CMD_WRITE_IPG0 0x12
+#define AX_CMD_WRITE_IPG1 0x13
+#define AX_CMD_READ_NODE_ID 0x13
+#define AX_CMD_WRITE_NODE_ID 0x14
+#define AX_CMD_WRITE_IPG2 0x14
+#define AX_CMD_WRITE_MULTI_FILTER 0x16
+#define AX88172_CMD_READ_NODE_ID 0x17
+#define AX_CMD_READ_PHY_ID 0x19
+#define AX_CMD_READ_MEDIUM_STATUS 0x1a
+#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
+#define AX_CMD_READ_MONITOR_MODE 0x1c
+#define AX_CMD_WRITE_MONITOR_MODE 0x1d
+#define AX_CMD_READ_GPIOS 0x1e
+#define AX_CMD_WRITE_GPIOS 0x1f
+#define AX_CMD_SW_RESET 0x20
+#define AX_CMD_SW_PHY_STATUS 0x21
+#define AX_CMD_SW_PHY_SELECT 0x22
+
+#define AX_PHY_SELECT_MASK (BIT(3) | BIT(2))
+#define AX_PHY_SELECT_INTERNAL 0
+#define AX_PHY_SELECT_EXTERNAL BIT(2)
+
+#define AX_MONITOR_MODE 0x01
+#define AX_MONITOR_LINK 0x02
+#define AX_MONITOR_MAGIC 0x04
+#define AX_MONITOR_HSFS 0x10
+
+/* AX88172 Medium Status Register values */
+#define AX88172_MEDIUM_FD 0x02
+#define AX88172_MEDIUM_TX 0x04
+#define AX88172_MEDIUM_FC 0x10
+#define AX88172_MEDIUM_DEFAULT \
+ ( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC )
+
+#define AX_MCAST_FILTER_SIZE 8
+#define AX_MAX_MCAST 64
+
+#define AX_SWRESET_CLEAR 0x00
+#define AX_SWRESET_RR 0x01
+#define AX_SWRESET_RT 0x02
+#define AX_SWRESET_PRTE 0x04
+#define AX_SWRESET_PRL 0x08
+#define AX_SWRESET_BZ 0x10
+#define AX_SWRESET_IPRL 0x20
+#define AX_SWRESET_IPPD 0x40
+
+#define AX88772_IPG0_DEFAULT 0x15
+#define AX88772_IPG1_DEFAULT 0x0c
+#define AX88772_IPG2_DEFAULT 0x12
+
+/* AX88772 & AX88178 Medium Mode Register */
+#define AX_MEDIUM_PF 0x0080
+#define AX_MEDIUM_JFE 0x0040
+#define AX_MEDIUM_TFC 0x0020
+#define AX_MEDIUM_RFC 0x0010
+#define AX_MEDIUM_ENCK 0x0008
+#define AX_MEDIUM_AC 0x0004
+#define AX_MEDIUM_FD 0x0002
+#define AX_MEDIUM_GM 0x0001
+#define AX_MEDIUM_SM 0x1000
+#define AX_MEDIUM_SBP 0x0800
+#define AX_MEDIUM_PS 0x0200
+#define AX_MEDIUM_RE 0x0100
+
+#define AX88178_MEDIUM_DEFAULT \
+ (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \
+ AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \
+ AX_MEDIUM_RE)
+
+#define AX88772_MEDIUM_DEFAULT \
+ (AX_MEDIUM_FD | AX_MEDIUM_RFC | \
+ AX_MEDIUM_TFC | AX_MEDIUM_PS | \
+ AX_MEDIUM_AC | AX_MEDIUM_RE)
+
+/* AX88772 & AX88178 RX_CTL values */
+#define AX_RX_CTL_SO 0x0080
+#define AX_RX_CTL_AP 0x0020
+#define AX_RX_CTL_AM 0x0010
+#define AX_RX_CTL_AB 0x0008
+#define AX_RX_CTL_SEP 0x0004
+#define AX_RX_CTL_AMALL 0x0002
+#define AX_RX_CTL_PRO 0x0001
+#define AX_RX_CTL_MFB_2048 0x0000
+#define AX_RX_CTL_MFB_4096 0x0100
+#define AX_RX_CTL_MFB_8192 0x0200
+#define AX_RX_CTL_MFB_16384 0x0300
+
+#define AX_DEFAULT_RX_CTL (AX_RX_CTL_SO | AX_RX_CTL_AB)
+
+/* GPIO 0 .. 2 toggles */
+#define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */
+#define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */
+#define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */
+#define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */
+#define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */
+#define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */
+#define AX_GPIO_RESERVED 0x40 /* Reserved */
+#define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */
+
+#define AX_EEPROM_MAGIC 0xdeadbeef
+#define AX_EEPROM_LEN 0x200
+
+/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
+struct asix_data {
+ u8 multi_filter[AX_MCAST_FILTER_SIZE];
+ u8 mac_addr[ETH_ALEN];
+ u8 phymode;
+ u8 ledmode;
+ u8 res;
+};
+
+struct asix_rx_fixup_info {
+ struct sk_buff *ax_skb;
+ u32 header;
+ u16 remaining;
+ bool split_head;
+};
+
+struct asix_common_private {
+ struct asix_rx_fixup_info rx_fixup_info;
+};
+
+extern const struct driver_info ax88172a_info;
+
+/* ASIX specific flags */
+#define FLAG_EEPROM_MAC (1UL << 0) /* init device MAC from eeprom */
+
+int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data);
+
+int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data);
+
+void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data);
+
+int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
+ struct asix_rx_fixup_info *rx);
+int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb);
+
+struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags);
+
+int asix_set_sw_mii(struct usbnet *dev);
+int asix_set_hw_mii(struct usbnet *dev);
+
+int asix_read_phy_addr(struct usbnet *dev, int internal);
+int asix_get_phy_addr(struct usbnet *dev);
+
+int asix_sw_reset(struct usbnet *dev, u8 flags);
+
+u16 asix_read_rx_ctl(struct usbnet *dev);
+int asix_write_rx_ctl(struct usbnet *dev, u16 mode);
+
+u16 asix_read_medium_status(struct usbnet *dev);
+int asix_write_medium_mode(struct usbnet *dev, u16 mode);
+
+int asix_write_gpio(struct usbnet *dev, u16 value, int sleep);
+
+void asix_set_multicast(struct net_device *net);
+
+int asix_mdio_read(struct net_device *netdev, int phy_id, int loc);
+void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val);
+
+void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+
+int asix_get_eeprom_len(struct net_device *net);
+int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+ u8 *data);
+int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+ u8 *data);
+
+void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info);
+
+int asix_set_mac_address(struct net_device *net, void *p);
+
+#endif /* _ASIX_H */
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
new file mode 100644
index 0000000..7fbd8f0
--- /dev/null
+++ b/drivers/net/usb/asix_common.c
@@ -0,0 +1,615 @@
+/*
+ * ASIX AX8817X based USB 2.0 Ethernet Devices
+ * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
+ * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
+ * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
+ * Copyright (c) 2002-2003 TiVo Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "asix.h"
+
+int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int ret;
+ ret = usbnet_read_cmd(dev, cmd,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (ret != size && ret >= 0)
+ return -EINVAL;
+ return ret;
+}
+
+int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ return usbnet_write_cmd(dev, cmd,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+}
+
+void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ usbnet_write_cmd_async(dev, cmd,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+}
+
+int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
+ struct asix_rx_fixup_info *rx)
+{
+ int offset = 0;
+ u16 size;
+
+ /* When an Ethernet frame spans multiple URB socket buffers,
+ * do a sanity test for the Data header synchronisation.
+ * Attempt to detect the situation of the previous socket buffer having
+ * been truncated or a socket buffer was missing. These situations
+ * cause a discontinuity in the data stream and therefore need to avoid
+ * appending bad data to the end of the current netdev socket buffer.
+ * Also avoid unnecessarily discarding a good current netdev socket
+ * buffer.
+ */
+ if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) {
+ offset = ((rx->remaining + 1) & 0xfffe);
+ rx->header = get_unaligned_le32(skb->data + offset);
+ offset = 0;
+
+ size = (u16)(rx->header & 0x7ff);
+ if (size != ((~rx->header >> 16) & 0x7ff)) {
+ netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n",
+ rx->remaining);
+ if (rx->ax_skb) {
+ kfree_skb(rx->ax_skb);
+ rx->ax_skb = NULL;
+ /* Discard the incomplete netdev Ethernet frame
+ * and assume the Data header is at the start of
+ * the current URB socket buffer.
+ */
+ }
+ rx->remaining = 0;
+ }
+ }
+
+ while (offset + sizeof(u16) <= skb->len) {
+ u16 copy_length;
+ unsigned char *data;
+
+ if (!rx->remaining) {
+ if (skb->len - offset == sizeof(u16)) {
+ rx->header = get_unaligned_le16(
+ skb->data + offset);
+ rx->split_head = true;
+ offset += sizeof(u16);
+ break;
+ }
+
+ if (rx->split_head == true) {
+ rx->header |= (get_unaligned_le16(
+ skb->data + offset) << 16);
+ rx->split_head = false;
+ offset += sizeof(u16);
+ } else {
+ rx->header = get_unaligned_le32(skb->data +
+ offset);
+ offset += sizeof(u32);
+ }
+
+ /* take frame length from Data header 32-bit word */
+ size = (u16)(rx->header & 0x7ff);
+ if (size != ((~rx->header >> 16) & 0x7ff)) {
+ netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n",
+ rx->header, offset);
+ return 0;
+ }
+ if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
+ netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
+ size);
+ return 0;
+ }
+
+ /* Sometimes may fail to get a netdev socket buffer but
+ * continue to process the URB socket buffer so that
+ * synchronisation of the Ethernet frame Data header
+ * word is maintained.
+ */
+ rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size);
+
+ rx->remaining = size;
+ }
+
+ if (rx->remaining > skb->len - offset) {
+ copy_length = skb->len - offset;
+ rx->remaining -= copy_length;
+ } else {
+ copy_length = rx->remaining;
+ rx->remaining = 0;
+ }
+
+ if (rx->ax_skb) {
+ data = skb_put(rx->ax_skb, copy_length);
+ memcpy(data, skb->data + offset, copy_length);
+ if (!rx->remaining)
+ usbnet_skb_return(dev, rx->ax_skb);
+ }
+
+ offset += (copy_length + 1) & 0xfffe;
+ }
+
+ if (skb->len != offset) {
+ netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n",
+ skb->len, offset);
+ return 0;
+ }
+
+ return 1;
+}
+
+int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct asix_common_private *dp = dev->driver_priv;
+ struct asix_rx_fixup_info *rx = &dp->rx_fixup_info;
+
+ return asix_rx_fixup_internal(dev, skb, rx);
+}
+
+struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int padlen;
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+ u32 packet_len;
+ u32 padbytes = 0xffff0000;
+
+ padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4;
+
+ /* We need to push 4 bytes in front of frame (packet_len)
+ * and maybe add 4 bytes after the end (if padlen is 4)
+ *
+ * Avoid skb_copy_expand() expensive call, using following rules :
+ * - We are allowed to push 4 bytes in headroom if skb_header_cloned()
+ * is false (and if we have 4 bytes of headroom)
+ * - We are allowed to put 4 bytes at tail if skb_cloned()
+ * is false (and if we have 4 bytes of tailroom)
+ *
+ * TCP packets for example are cloned, but skb_header_release()
+ * was called in tcp stack, allowing us to use headroom for our needs.
+ */
+ if (!skb_header_cloned(skb) &&
+ !(padlen && skb_cloned(skb)) &&
+ headroom + tailroom >= 4 + padlen) {
+ /* following should not happen, but better be safe */
+ if (headroom < 4 ||
+ tailroom < padlen) {
+ skb->data = memmove(skb->head + 4, skb->data, skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ }
+ } else {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb, 4, padlen, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len;
+ skb_push(skb, 4);
+ cpu_to_le32s(&packet_len);
+ skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
+
+ if (padlen) {
+ cpu_to_le32s(&padbytes);
+ memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
+ skb_put(skb, sizeof(padbytes));
+ }
+
+ usbnet_set_skb_tx_stats(skb, 1, 0);
+ return skb;
+}
+
+int asix_set_sw_mii(struct usbnet *dev)
+{
+ int ret;
+ ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to enable software MII access\n");
+ return ret;
+}
+
+int asix_set_hw_mii(struct usbnet *dev)
+{
+ int ret;
+ ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to enable hardware MII access\n");
+ return ret;
+}
+
+int asix_read_phy_addr(struct usbnet *dev, int internal)
+{
+ int offset = (internal ? 1 : 0);
+ u8 buf[2];
+ int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);
+
+ netdev_dbg(dev->net, "asix_get_phy_addr()\n");
+
+ if (ret < 0) {
+ netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret);
+ goto out;
+ }
+ netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n",
+ *((__le16 *)buf));
+ ret = buf[offset];
+
+out:
+ return ret;
+}
+
+int asix_get_phy_addr(struct usbnet *dev)
+{
+ /* return the address of the internal phy */
+ return asix_read_phy_addr(dev, 1);
+}
+
+
+int asix_sw_reset(struct usbnet *dev, u8 flags)
+{
+ int ret;
+
+ ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to send software reset: %02x\n", ret);
+
+ return ret;
+}
+
+u16 asix_read_rx_ctl(struct usbnet *dev)
+{
+ __le16 v;
+ int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);
+
+ if (ret < 0) {
+ netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret);
+ goto out;
+ }
+ ret = le16_to_cpu(v);
+out:
+ return ret;
+}
+
+int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n",
+ mode, ret);
+
+ return ret;
+}
+
+u16 asix_read_medium_status(struct usbnet *dev)
+{
+ __le16 v;
+ int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);
+
+ if (ret < 0) {
+ netdev_err(dev->net, "Error reading Medium Status register: %02x\n",
+ ret);
+ return ret; /* TODO: callers not checking for error ret */
+ }
+
+ return le16_to_cpu(v);
+
+}
+
+int asix_write_medium_mode(struct usbnet *dev, u16 mode)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n",
+ mode, ret);
+
+ return ret;
+}
+
+int asix_write_gpio(struct usbnet *dev, u16 value, int sleep)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n",
+ value, ret);
+
+ if (sleep)
+ msleep(sleep);
+
+ return ret;
+}
+
+/*
+ * AX88772 & AX88178 have a 16-bit RX_CTL value
+ */
+void asix_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ u16 rx_ctl = AX_DEFAULT_RX_CTL;
+
+ if (net->flags & IFF_PROMISC) {
+ rx_ctl |= AX_RX_CTL_PRO;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > AX_MAX_MCAST) {
+ rx_ctl |= AX_RX_CTL_AMALL;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use the 20 byte dev->data
+ * for our 8 byte filter buffer
+ * to avoid allocating memory that
+ * is tricky to free later */
+ struct netdev_hw_addr *ha;
+ u32 crc_bits;
+
+ memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
+
+ /* Build the multicast hash filter. */
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ data->multi_filter[crc_bits >> 3] |=
+ 1 << (crc_bits & 7);
+ }
+
+ asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
+ AX_MCAST_FILTER_SIZE, data->multi_filter);
+
+ rx_ctl |= AX_RX_CTL_AM;
+ }
+
+ asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
+}
+
+int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 res;
+
+ mutex_lock(&dev->phy_mutex);
+ asix_set_sw_mii(dev);
+ asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
+ (__u16)loc, 2, &res);
+ asix_set_hw_mii(dev);
+ mutex_unlock(&dev->phy_mutex);
+
+ netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
+ phy_id, loc, le16_to_cpu(res));
+
+ return le16_to_cpu(res);
+}
+
+void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 res = cpu_to_le16(val);
+
+ netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
+ phy_id, loc, val);
+ mutex_lock(&dev->phy_mutex);
+ asix_set_sw_mii(dev);
+ asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
+ asix_set_hw_mii(dev);
+ mutex_unlock(&dev->phy_mutex);
+}
+
+void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt;
+
+ if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
+ wolinfo->supported = 0;
+ wolinfo->wolopts = 0;
+ return;
+ }
+ wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
+ wolinfo->wolopts = 0;
+ if (opt & AX_MONITOR_LINK)
+ wolinfo->wolopts |= WAKE_PHY;
+ if (opt & AX_MONITOR_MAGIC)
+ wolinfo->wolopts |= WAKE_MAGIC;
+}
+
+int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt = 0;
+
+ if (wolinfo->wolopts & WAKE_PHY)
+ opt |= AX_MONITOR_LINK;
+ if (wolinfo->wolopts & WAKE_MAGIC)
+ opt |= AX_MONITOR_MAGIC;
+
+ if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
+ opt, 0, 0, NULL) < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+int asix_get_eeprom_len(struct net_device *net)
+{
+ return AX_EEPROM_LEN;
+}
+
+int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 *eeprom_buff;
+ int first_word, last_word;
+ int i;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = AX_EEPROM_MAGIC;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ /* ax8817x returns 2 bytes from eeprom on read */
+ for (i = first_word; i <= last_word; i++) {
+ if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2,
+ &(eeprom_buff[i - first_word])) < 0) {
+ kfree(eeprom_buff);
+ return -EIO;
+ }
+ }
+
+ memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
+ kfree(eeprom_buff);
+ return 0;
+}
+
+int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 *eeprom_buff;
+ int first_word, last_word;
+ int i;
+ int ret;
+
+ netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
+ eeprom->len, eeprom->offset, eeprom->magic);
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ if (eeprom->magic != AX_EEPROM_MAGIC)
+ return -EINVAL;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ /* align data to 16 bit boundaries, read the missing data from
+ the EEPROM */
+ if (eeprom->offset & 1) {
+ ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2,
+ &(eeprom_buff[0]));
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
+ goto free;
+ }
+ }
+
+ if ((eeprom->offset + eeprom->len) & 1) {
+ ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2,
+ &(eeprom_buff[last_word - first_word]));
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
+ goto free;
+ }
+ }
+
+ memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
+
+ /* write data to EEPROM */
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_err(net, "Failed to enable EEPROM write\n");
+ goto free;
+ }
+ msleep(20);
+
+ for (i = first_word; i <= last_word; i++) {
+ netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
+ i, eeprom_buff[i - first_word]);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i,
+ eeprom_buff[i - first_word], 0, NULL);
+ if (ret < 0) {
+ netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n",
+ i);
+ goto free;
+ }
+ msleep(20);
+ }
+
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_err(net, "Failed to disable EEPROM write\n");
+ goto free;
+ }
+
+ ret = 0;
+free:
+ kfree(eeprom_buff);
+ return ret;
+}
+
+void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
+{
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+}
+
+int asix_set_mac_address(struct net_device *net, void *p)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ struct sockaddr *addr = p;
+
+ if (netif_running(net))
+ return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
+
+ /* We use the 20 byte dev->data
+ * for our 6 byte mac buffer
+ * to avoid allocating memory that
+ * is tricky to free later */
+ memcpy(data->mac_addr, addr->sa_data, ETH_ALEN);
+ asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+
+ return 0;
+}
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
new file mode 100644
index 0000000..5cabefc
--- /dev/null
+++ b/drivers/net/usb/asix_devices.c
@@ -0,0 +1,1111 @@
+/*
+ * ASIX AX8817X based USB 2.0 Ethernet Devices
+ * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
+ * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
+ * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
+ * Copyright (c) 2002-2003 TiVo Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "asix.h"
+
+#define PHY_MODE_MARVELL 0x0000
+#define MII_MARVELL_LED_CTRL 0x0018
+#define MII_MARVELL_STATUS 0x001b
+#define MII_MARVELL_CTRL 0x0014
+
+#define MARVELL_LED_MANUAL 0x0019
+
+#define MARVELL_STATUS_HWCFG 0x0004
+
+#define MARVELL_CTRL_TXDELAY 0x0002
+#define MARVELL_CTRL_RXDELAY 0x0080
+
+#define PHY_MODE_RTL8211CL 0x000C
+
+struct ax88172_int_data {
+ __le16 res1;
+ u8 link;
+ __le16 res2;
+ u8 status;
+ __le16 res3;
+} __packed;
+
+static void asix_status(struct usbnet *dev, struct urb *urb)
+{
+ struct ax88172_int_data *event;
+ int link;
+
+ if (urb->actual_length < 8)
+ return;
+
+ event = urb->transfer_buffer;
+ link = event->link & 0x01;
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+}
+
+static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr)
+{
+ if (is_valid_ether_addr(addr)) {
+ memcpy(dev->net->dev_addr, addr, ETH_ALEN);
+ } else {
+ netdev_info(dev->net, "invalid hw address, using random\n");
+ eth_hw_addr_random(dev->net);
+ }
+}
+
+/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
+static u32 asix_get_phyid(struct usbnet *dev)
+{
+ int phy_reg;
+ u32 phy_id;
+ int i;
+
+ /* Poll for the rare case the FW or phy isn't ready yet. */
+ for (i = 0; i < 100; i++) {
+ phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
+ if (phy_reg != 0 && phy_reg != 0xFFFF)
+ break;
+ mdelay(1);
+ }
+
+ if (phy_reg <= 0 || phy_reg == 0xFFFF)
+ return 0;
+
+ phy_id = (phy_reg & 0xffff) << 16;
+
+ phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
+ if (phy_reg < 0)
+ return 0;
+
+ phy_id |= (phy_reg & 0xffff);
+
+ return phy_id;
+}
+
+static u32 asix_get_link(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return mii_link_ok(&dev->mii);
+}
+
+static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+/* We need to override some ethtool_ops so we require our
+ own structure so we don't interfere with other usbnet
+ devices that may be connected at the same time. */
+static const struct ethtool_ops ax88172_ethtool_ops = {
+ .get_drvinfo = asix_get_drvinfo,
+ .get_link = asix_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = asix_get_wol,
+ .set_wol = asix_set_wol,
+ .get_eeprom_len = asix_get_eeprom_len,
+ .get_eeprom = asix_get_eeprom,
+ .set_eeprom = asix_set_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static void ax88172_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ u8 rx_ctl = 0x8c;
+
+ if (net->flags & IFF_PROMISC) {
+ rx_ctl |= 0x01;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > AX_MAX_MCAST) {
+ rx_ctl |= 0x02;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use the 20 byte dev->data
+ * for our 8 byte filter buffer
+ * to avoid allocating memory that
+ * is tricky to free later */
+ struct netdev_hw_addr *ha;
+ u32 crc_bits;
+
+ memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
+
+ /* Build the multicast hash filter. */
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ data->multi_filter[crc_bits >> 3] |=
+ 1 << (crc_bits & 7);
+ }
+
+ asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
+ AX_MCAST_FILTER_SIZE, data->multi_filter);
+
+ rx_ctl |= 0x10;
+ }
+
+ asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
+}
+
+static int ax88172_link_reset(struct usbnet *dev)
+{
+ u8 mode;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ mode = AX88172_MEDIUM_DEFAULT;
+
+ if (ecmd.duplex != DUPLEX_FULL)
+ mode |= ~AX88172_MEDIUM_FD;
+
+ netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
+
+ asix_write_medium_mode(dev, mode);
+
+ return 0;
+}
+
+static const struct net_device_ops ax88172_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = asix_ioctl,
+ .ndo_set_rx_mode = ax88172_set_multicast,
+};
+
+static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret = 0;
+ u8 buf[ETH_ALEN];
+ int i;
+ unsigned long gpio_bits = dev->driver_info->data;
+
+ usbnet_get_endpoints(dev,intf);
+
+ /* Toggle the GPIOs in a manufacturer/model specific way */
+ for (i = 2; i >= 0; i--) {
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
+ (gpio_bits >> (i * 8)) & 0xff, 0, 0, NULL);
+ if (ret < 0)
+ goto out;
+ msleep(5);
+ }
+
+ ret = asix_write_rx_ctl(dev, 0x80);
+ if (ret < 0)
+ goto out;
+
+ /* Get the MAC address */
+ ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n",
+ ret);
+ goto out;
+ }
+
+ asix_set_netdev_dev_addr(dev, buf);
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = asix_mdio_read;
+ dev->mii.mdio_write = asix_mdio_write;
+ dev->mii.phy_id_mask = 0x3f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = asix_get_phy_addr(dev);
+
+ dev->net->netdev_ops = &ax88172_netdev_ops;
+ dev->net->ethtool_ops = &ax88172_ethtool_ops;
+ dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
+ dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
+
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
+ mii_nway_restart(&dev->mii);
+
+ return 0;
+
+out:
+ return ret;
+}
+
+static const struct ethtool_ops ax88772_ethtool_ops = {
+ .get_drvinfo = asix_get_drvinfo,
+ .get_link = asix_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = asix_get_wol,
+ .set_wol = asix_set_wol,
+ .get_eeprom_len = asix_get_eeprom_len,
+ .get_eeprom = asix_get_eeprom,
+ .set_eeprom = asix_set_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static int ax88772_link_reset(struct usbnet *dev)
+{
+ u16 mode;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ mode = AX88772_MEDIUM_DEFAULT;
+
+ if (ethtool_cmd_speed(&ecmd) != SPEED_100)
+ mode &= ~AX_MEDIUM_PS;
+
+ if (ecmd.duplex != DUPLEX_FULL)
+ mode &= ~AX_MEDIUM_FD;
+
+ netdev_dbg(dev->net, "ax88772_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
+
+ asix_write_medium_mode(dev, mode);
+
+ return 0;
+}
+
+static int ax88772_reset(struct usbnet *dev)
+{
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ int ret, embd_phy;
+ u16 rx_ctl;
+
+ ret = asix_write_gpio(dev,
+ AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5);
+ if (ret < 0)
+ goto out;
+
+ embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
+
+ ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
+ goto out;
+ }
+
+ ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ ret = asix_sw_reset(dev, AX_SWRESET_CLEAR);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ if (embd_phy) {
+ ret = asix_sw_reset(dev, AX_SWRESET_IPRL);
+ if (ret < 0)
+ goto out;
+ } else {
+ ret = asix_sw_reset(dev, AX_SWRESET_PRTE);
+ if (ret < 0)
+ goto out;
+ }
+
+ msleep(150);
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
+ ret = asix_write_rx_ctl(dev, 0x0000);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
+
+ ret = asix_sw_reset(dev, AX_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA);
+ mii_nway_restart(&dev->mii);
+
+ ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT);
+ if (ret < 0)
+ goto out;
+
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
+ AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
+ AX88772_IPG2_DEFAULT, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
+ goto out;
+ }
+
+ /* Rewrite MAC address */
+ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+ if (ret < 0)
+ goto out;
+
+ /* Set RX_CTL to default values with 2k buffer, and enable cactus */
+ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
+ rx_ctl);
+
+ rx_ctl = asix_read_medium_status(dev);
+ netdev_dbg(dev->net,
+ "Medium Status is 0x%04x after all initializations\n",
+ rx_ctl);
+
+ return 0;
+
+out:
+ return ret;
+
+}
+
+static const struct net_device_ops ax88772_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = asix_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = asix_ioctl,
+ .ndo_set_rx_mode = asix_set_multicast,
+};
+
+static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret, embd_phy, i;
+ u8 buf[ETH_ALEN];
+ u32 phyid;
+
+ usbnet_get_endpoints(dev,intf);
+
+ /* Get the MAC address */
+ if (dev->driver_info->data & FLAG_EEPROM_MAC) {
+ for (i = 0; i < (ETH_ALEN >> 1); i++) {
+ ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x04 + i,
+ 0, 2, buf + i * 2);
+ if (ret < 0)
+ break;
+ }
+ } else {
+ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
+ 0, 0, ETH_ALEN, buf);
+ }
+
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
+ return ret;
+ }
+
+ asix_set_netdev_dev_addr(dev, buf);
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = asix_mdio_read;
+ dev->mii.mdio_write = asix_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = asix_get_phy_addr(dev);
+
+ dev->net->netdev_ops = &ax88772_netdev_ops;
+ dev->net->ethtool_ops = &ax88772_ethtool_ops;
+ dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
+ dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
+
+ embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
+
+ /* Reset the PHY to normal operation mode */
+ ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
+ return ret;
+ }
+
+ ax88772_reset(dev);
+
+ /* Read PHYID register *AFTER* the PHY was reset properly */
+ phyid = asix_get_phyid(dev);
+ netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
+
+ /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
+ if (dev->driver_info->flags & FLAG_FRAMING_AX) {
+ /* hard_mtu is still the default - the device does not support
+ jumbo eth frames */
+ dev->rx_urb_size = 2048;
+ }
+
+ dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
+ if (!dev->driver_priv)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ kfree(dev->driver_priv);
+}
+
+static const struct ethtool_ops ax88178_ethtool_ops = {
+ .get_drvinfo = asix_get_drvinfo,
+ .get_link = asix_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = asix_get_wol,
+ .set_wol = asix_set_wol,
+ .get_eeprom_len = asix_get_eeprom_len,
+ .get_eeprom = asix_get_eeprom,
+ .set_eeprom = asix_set_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static int marvell_phy_init(struct usbnet *dev)
+{
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ u16 reg;
+
+ netdev_dbg(dev->net, "marvell_phy_init()\n");
+
+ reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
+ netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
+
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
+ MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
+
+ if (data->ledmode) {
+ reg = asix_mdio_read(dev->net, dev->mii.phy_id,
+ MII_MARVELL_LED_CTRL);
+ netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
+
+ reg &= 0xf8ff;
+ reg |= (1 + 0x0100);
+ asix_mdio_write(dev->net, dev->mii.phy_id,
+ MII_MARVELL_LED_CTRL, reg);
+
+ reg = asix_mdio_read(dev->net, dev->mii.phy_id,
+ MII_MARVELL_LED_CTRL);
+ netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
+ reg &= 0xfc0f;
+ }
+
+ return 0;
+}
+
+static int rtl8211cl_phy_init(struct usbnet *dev)
+{
+ struct asix_data *data = (struct asix_data *)&dev->data;
+
+ netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
+
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005);
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0);
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x01,
+ asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080);
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
+
+ if (data->ledmode == 12) {
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002);
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb);
+ asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
+ }
+
+ return 0;
+}
+
+static int marvell_led_status(struct usbnet *dev, u16 speed)
+{
+ u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
+
+ netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
+
+ /* Clear out the center LED bits - 0x03F0 */
+ reg &= 0xfc0f;
+
+ switch (speed) {
+ case SPEED_1000:
+ reg |= 0x03e0;
+ break;
+ case SPEED_100:
+ reg |= 0x03b0;
+ break;
+ default:
+ reg |= 0x02f0;
+ }
+
+ netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
+ asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
+
+ return 0;
+}
+
+static int ax88178_reset(struct usbnet *dev)
+{
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ int ret;
+ __le16 eeprom;
+ u8 status;
+ int gpio0 = 0;
+ u32 phyid;
+
+ asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
+ netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
+
+ asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
+ asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
+ asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
+
+ netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
+
+ if (eeprom == cpu_to_le16(0xffff)) {
+ data->phymode = PHY_MODE_MARVELL;
+ data->ledmode = 0;
+ gpio0 = 1;
+ } else {
+ data->phymode = le16_to_cpu(eeprom) & 0x7F;
+ data->ledmode = le16_to_cpu(eeprom) >> 8;
+ gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
+ }
+ netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
+
+ /* Power up external GigaPHY through AX88178 GPIO pin */
+ asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
+ if ((le16_to_cpu(eeprom) >> 8) != 1) {
+ asix_write_gpio(dev, 0x003c, 30);
+ asix_write_gpio(dev, 0x001c, 300);
+ asix_write_gpio(dev, 0x003c, 30);
+ } else {
+ netdev_dbg(dev->net, "gpio phymode == 1 path\n");
+ asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
+ asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
+ }
+
+ /* Read PHYID register *AFTER* powering up PHY */
+ phyid = asix_get_phyid(dev);
+ netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
+
+ /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
+ asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL);
+
+ asix_sw_reset(dev, 0);
+ msleep(150);
+
+ asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
+ msleep(150);
+
+ asix_write_rx_ctl(dev, 0);
+
+ if (data->phymode == PHY_MODE_MARVELL) {
+ marvell_phy_init(dev);
+ msleep(60);
+ } else if (data->phymode == PHY_MODE_RTL8211CL)
+ rtl8211cl_phy_init(dev);
+
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
+ BMCR_RESET | BMCR_ANENABLE);
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
+ asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
+ ADVERTISE_1000FULL);
+
+ mii_nway_restart(&dev->mii);
+
+ ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT);
+ if (ret < 0)
+ return ret;
+
+ /* Rewrite MAC address */
+ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+ if (ret < 0)
+ return ret;
+
+ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int ax88178_link_reset(struct usbnet *dev)
+{
+ u16 mode;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ u32 speed;
+
+ netdev_dbg(dev->net, "ax88178_link_reset()\n");
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ mode = AX88178_MEDIUM_DEFAULT;
+ speed = ethtool_cmd_speed(&ecmd);
+
+ if (speed == SPEED_1000)
+ mode |= AX_MEDIUM_GM;
+ else if (speed == SPEED_100)
+ mode |= AX_MEDIUM_PS;
+ else
+ mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
+
+ mode |= AX_MEDIUM_ENCK;
+
+ if (ecmd.duplex == DUPLEX_FULL)
+ mode |= AX_MEDIUM_FD;
+ else
+ mode &= ~AX_MEDIUM_FD;
+
+ netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
+ speed, ecmd.duplex, mode);
+
+ asix_write_medium_mode(dev, mode);
+
+ if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
+ marvell_led_status(dev, speed);
+
+ return 0;
+}
+
+static void ax88178_set_mfb(struct usbnet *dev)
+{
+ u16 mfb = AX_RX_CTL_MFB_16384;
+ u16 rxctl;
+ u16 medium;
+ int old_rx_urb_size = dev->rx_urb_size;
+
+ if (dev->hard_mtu < 2048) {
+ dev->rx_urb_size = 2048;
+ mfb = AX_RX_CTL_MFB_2048;
+ } else if (dev->hard_mtu < 4096) {
+ dev->rx_urb_size = 4096;
+ mfb = AX_RX_CTL_MFB_4096;
+ } else if (dev->hard_mtu < 8192) {
+ dev->rx_urb_size = 8192;
+ mfb = AX_RX_CTL_MFB_8192;
+ } else if (dev->hard_mtu < 16384) {
+ dev->rx_urb_size = 16384;
+ mfb = AX_RX_CTL_MFB_16384;
+ }
+
+ rxctl = asix_read_rx_ctl(dev);
+ asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb);
+
+ medium = asix_read_medium_status(dev);
+ if (dev->net->mtu > 1500)
+ medium |= AX_MEDIUM_JFE;
+ else
+ medium &= ~AX_MEDIUM_JFE;
+ asix_write_medium_mode(dev, medium);
+
+ if (dev->rx_urb_size > old_rx_urb_size)
+ usbnet_unlink_rx_urbs(dev);
+}
+
+static int ax88178_change_mtu(struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ int ll_mtu = new_mtu + net->hard_header_len + 4;
+
+ netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
+
+ if (new_mtu <= 0 || ll_mtu > 16384)
+ return -EINVAL;
+
+ if ((ll_mtu % dev->maxpacket) == 0)
+ return -EDOM;
+
+ net->mtu = new_mtu;
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+ ax88178_set_mfb(dev);
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ return 0;
+}
+
+static const struct net_device_ops ax88178_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_set_mac_address = asix_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = asix_set_multicast,
+ .ndo_do_ioctl = asix_ioctl,
+ .ndo_change_mtu = ax88178_change_mtu,
+};
+
+static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ u8 buf[ETH_ALEN];
+
+ usbnet_get_endpoints(dev,intf);
+
+ /* Get the MAC address */
+ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
+ return ret;
+ }
+
+ asix_set_netdev_dev_addr(dev, buf);
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = asix_mdio_read;
+ dev->mii.mdio_write = asix_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0xff;
+ dev->mii.supports_gmii = 1;
+ dev->mii.phy_id = asix_get_phy_addr(dev);
+
+ dev->net->netdev_ops = &ax88178_netdev_ops;
+ dev->net->ethtool_ops = &ax88178_ethtool_ops;
+
+ /* Blink LEDS so users know driver saw dongle */
+ asix_sw_reset(dev, 0);
+ msleep(150);
+
+ asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
+ msleep(150);
+
+ /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
+ if (dev->driver_info->flags & FLAG_FRAMING_AX) {
+ /* hard_mtu is still the default - the device does not support
+ jumbo eth frames */
+ dev->rx_urb_size = 2048;
+ }
+
+ dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
+ if (!dev->driver_priv)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static const struct driver_info ax8817x_info = {
+ .description = "ASIX AX8817x USB 2.0 Ethernet",
+ .bind = ax88172_bind,
+ .status = asix_status,
+ .link_reset = ax88172_link_reset,
+ .reset = ax88172_link_reset,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .data = 0x00130103,
+};
+
+static const struct driver_info dlink_dub_e100_info = {
+ .description = "DLink DUB-E100 USB Ethernet",
+ .bind = ax88172_bind,
+ .status = asix_status,
+ .link_reset = ax88172_link_reset,
+ .reset = ax88172_link_reset,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .data = 0x009f9d9f,
+};
+
+static const struct driver_info netgear_fa120_info = {
+ .description = "Netgear FA-120 USB Ethernet",
+ .bind = ax88172_bind,
+ .status = asix_status,
+ .link_reset = ax88172_link_reset,
+ .reset = ax88172_link_reset,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .data = 0x00130103,
+};
+
+static const struct driver_info hawking_uf200_info = {
+ .description = "Hawking UF200 USB Ethernet",
+ .bind = ax88172_bind,
+ .status = asix_status,
+ .link_reset = ax88172_link_reset,
+ .reset = ax88172_link_reset,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .data = 0x001f1d1f,
+};
+
+static const struct driver_info ax88772_info = {
+ .description = "ASIX AX88772 USB 2.0 Ethernet",
+ .bind = ax88772_bind,
+ .unbind = ax88772_unbind,
+ .status = asix_status,
+ .link_reset = ax88772_link_reset,
+ .reset = ax88772_link_reset,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
+ .rx_fixup = asix_rx_fixup_common,
+ .tx_fixup = asix_tx_fixup,
+};
+
+static const struct driver_info ax88772b_info = {
+ .description = "ASIX AX88772B USB 2.0 Ethernet",
+ .bind = ax88772_bind,
+ .unbind = ax88772_unbind,
+ .status = asix_status,
+ .link_reset = ax88772_link_reset,
+ .reset = ax88772_reset,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
+ FLAG_MULTI_PACKET,
+ .rx_fixup = asix_rx_fixup_common,
+ .tx_fixup = asix_tx_fixup,
+ .data = FLAG_EEPROM_MAC,
+};
+
+static const struct driver_info ax88178_info = {
+ .description = "ASIX AX88178 USB 2.0 Ethernet",
+ .bind = ax88178_bind,
+ .unbind = ax88772_unbind,
+ .status = asix_status,
+ .link_reset = ax88178_link_reset,
+ .reset = ax88178_reset,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
+ FLAG_MULTI_PACKET,
+ .rx_fixup = asix_rx_fixup_common,
+ .tx_fixup = asix_tx_fixup,
+};
+
+/*
+ * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
+ * no-name packaging.
+ * USB device strings are:
+ * 1: Manufacturer: USBLINK
+ * 2: Product: HG20F9 USB2.0
+ * 3: Serial: 000003
+ * Appears to be compatible with Asix 88772B.
+ */
+static const struct driver_info hg20f9_info = {
+ .description = "HG20F9 USB 2.0 Ethernet",
+ .bind = ax88772_bind,
+ .unbind = ax88772_unbind,
+ .status = asix_status,
+ .link_reset = ax88772_link_reset,
+ .reset = ax88772_reset,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
+ FLAG_MULTI_PACKET,
+ .rx_fixup = asix_rx_fixup_common,
+ .tx_fixup = asix_tx_fixup,
+ .data = FLAG_EEPROM_MAC,
+};
+
+static const struct usb_device_id products [] = {
+{
+ // Linksys USB200M
+ USB_DEVICE (0x077b, 0x2226),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Netgear FA120
+ USB_DEVICE (0x0846, 0x1040),
+ .driver_info = (unsigned long) &netgear_fa120_info,
+}, {
+ // DLink DUB-E100
+ USB_DEVICE (0x2001, 0x1a00),
+ .driver_info = (unsigned long) &dlink_dub_e100_info,
+}, {
+ // Intellinet, ST Lab USB Ethernet
+ USB_DEVICE (0x0b95, 0x1720),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Hawking UF200, TrendNet TU2-ET100
+ USB_DEVICE (0x07b8, 0x420a),
+ .driver_info = (unsigned long) &hawking_uf200_info,
+}, {
+ // Billionton Systems, USB2AR
+ USB_DEVICE (0x08dd, 0x90ff),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Billionton Systems, GUSB2AM-1G-B
+ USB_DEVICE(0x08dd, 0x0114),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // ATEN UC210T
+ USB_DEVICE (0x0557, 0x2009),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Buffalo LUA-U2-KTX
+ USB_DEVICE (0x0411, 0x003d),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Buffalo LUA-U2-GT 10/100/1000
+ USB_DEVICE (0x0411, 0x006e),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
+ USB_DEVICE (0x6189, 0x182d),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
+ USB_DEVICE (0x0df6, 0x0056),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
+ USB_DEVICE (0x0df6, 0x061c),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // corega FEther USB2-TX
+ USB_DEVICE (0x07aa, 0x0017),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Surecom EP-1427X-2
+ USB_DEVICE (0x1189, 0x0893),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // goodway corp usb gwusb2e
+ USB_DEVICE (0x1631, 0x6200),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // JVC MP-PRX1 Port Replicator
+ USB_DEVICE (0x04f1, 0x3008),
+ .driver_info = (unsigned long) &ax8817x_info,
+}, {
+ // Lenovo U2L100P 10/100
+ USB_DEVICE (0x17ef, 0x7203),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // ASIX AX88772B 10/100
+ USB_DEVICE (0x0b95, 0x772b),
+ .driver_info = (unsigned long) &ax88772b_info,
+}, {
+ // ASIX AX88772 10/100
+ USB_DEVICE (0x0b95, 0x7720),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // ASIX AX88178 10/100/1000
+ USB_DEVICE (0x0b95, 0x1780),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Logitec LAN-GTJ/U2A
+ USB_DEVICE (0x0789, 0x0160),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Linksys USB200M Rev 2
+ USB_DEVICE (0x13b1, 0x0018),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // 0Q0 cable ethernet
+ USB_DEVICE (0x1557, 0x7720),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // DLink DUB-E100 H/W Ver B1
+ USB_DEVICE (0x07d1, 0x3c05),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // DLink DUB-E100 H/W Ver B1 Alternate
+ USB_DEVICE (0x2001, 0x3c05),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // DLink DUB-E100 H/W Ver C1
+ USB_DEVICE (0x2001, 0x1a02),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // Linksys USB1000
+ USB_DEVICE (0x1737, 0x0039),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // IO-DATA ETG-US2
+ USB_DEVICE (0x04bb, 0x0930),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Belkin F5D5055
+ USB_DEVICE(0x050d, 0x5055),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // Apple USB Ethernet Adapter
+ USB_DEVICE(0x05ac, 0x1402),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // Cables-to-Go USB Ethernet Adapter
+ USB_DEVICE(0x0b95, 0x772a),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // ABOCOM for pci
+ USB_DEVICE(0x14ea, 0xab11),
+ .driver_info = (unsigned long) &ax88178_info,
+}, {
+ // ASIX 88772a
+ USB_DEVICE(0x0db0, 0xa877),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ // Asus USB Ethernet Adapter
+ USB_DEVICE (0x0b95, 0x7e2b),
+ .driver_info = (unsigned long) &ax88772_info,
+}, {
+ /* ASIX 88172a demo board */
+ USB_DEVICE(0x0b95, 0x172a),
+ .driver_info = (unsigned long) &ax88172a_info,
+}, {
+ /*
+ * USBLINK HG20F9 "USB 2.0 LAN"
+ * Appears to have gazumped Linksys's manufacturer ID but
+ * doesn't (yet) conflict with any known Linksys product.
+ */
+ USB_DEVICE(0x066b, 0x20f9),
+ .driver_info = (unsigned long) &hg20f9_info,
+},
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver asix_driver = {
+ .name = DRIVER_NAME,
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disconnect = usbnet_disconnect,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(asix_driver);
+
+MODULE_AUTHOR("David Hollis");
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
new file mode 100644
index 0000000..5f18fcb
--- /dev/null
+++ b/drivers/net/usb/ax88172a.c
@@ -0,0 +1,422 @@
+/*
+ * ASIX AX88172A based USB 2.0 Ethernet Devices
+ * Copyright (C) 2012 OMICRON electronics GmbH
+ *
+ * Supports external PHYs via phylib. Based on the driver for the
+ * AX88772. Original copyrights follow:
+ *
+ * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
+ * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
+ * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
+ * Copyright (c) 2002-2003 TiVo Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "asix.h"
+#include <linux/phy.h>
+
+struct ax88172a_private {
+ struct mii_bus *mdio;
+ struct phy_device *phydev;
+ char phy_name[20];
+ u16 phy_addr;
+ u16 oldmode;
+ int use_embdphy;
+ struct asix_rx_fixup_info rx_fixup_info;
+};
+
+/* MDIO read and write wrappers for phylib */
+static int asix_mdio_bus_read(struct mii_bus *bus, int phy_id, int regnum)
+{
+ return asix_mdio_read(((struct usbnet *)bus->priv)->net, phy_id,
+ regnum);
+}
+
+static int asix_mdio_bus_write(struct mii_bus *bus, int phy_id, int regnum,
+ u16 val)
+{
+ asix_mdio_write(((struct usbnet *)bus->priv)->net, phy_id, regnum, val);
+ return 0;
+}
+
+static int ax88172a_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ if (!netif_running(net))
+ return -EINVAL;
+
+ if (!net->phydev)
+ return -ENODEV;
+
+ return phy_mii_ioctl(net->phydev, rq, cmd);
+}
+
+/* set MAC link settings according to information from phylib */
+static void ax88172a_adjust_link(struct net_device *netdev)
+{
+ struct phy_device *phydev = netdev->phydev;
+ struct usbnet *dev = netdev_priv(netdev);
+ struct ax88172a_private *priv = dev->driver_priv;
+ u16 mode = 0;
+
+ if (phydev->link) {
+ mode = AX88772_MEDIUM_DEFAULT;
+
+ if (phydev->duplex == DUPLEX_HALF)
+ mode &= ~AX_MEDIUM_FD;
+
+ if (phydev->speed != SPEED_100)
+ mode &= ~AX_MEDIUM_PS;
+ }
+
+ if (mode != priv->oldmode) {
+ asix_write_medium_mode(dev, mode);
+ priv->oldmode = mode;
+ netdev_dbg(netdev, "speed %u duplex %d, setting mode to 0x%04x\n",
+ phydev->speed, phydev->duplex, mode);
+ phy_print_status(phydev);
+ }
+}
+
+static void ax88172a_status(struct usbnet *dev, struct urb *urb)
+{
+ /* link changes are detected by polling the phy */
+}
+
+/* use phylib infrastructure */
+static int ax88172a_init_mdio(struct usbnet *dev)
+{
+ struct ax88172a_private *priv = dev->driver_priv;
+ int ret, i;
+
+ priv->mdio = mdiobus_alloc();
+ if (!priv->mdio) {
+ netdev_err(dev->net, "Could not allocate MDIO bus\n");
+ return -ENOMEM;
+ }
+
+ priv->mdio->priv = (void *)dev;
+ priv->mdio->read = &asix_mdio_bus_read;
+ priv->mdio->write = &asix_mdio_bus_write;
+ priv->mdio->name = "Asix MDIO Bus";
+ /* mii bus name is usb-<usb bus number>-<usb device number> */
+ snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+ dev->udev->bus->busnum, dev->udev->devnum);
+
+ priv->mdio->irq = kzalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+ if (!priv->mdio->irq) {
+ ret = -ENOMEM;
+ goto mfree;
+ }
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ priv->mdio->irq[i] = PHY_POLL;
+
+ ret = mdiobus_register(priv->mdio);
+ if (ret) {
+ netdev_err(dev->net, "Could not register MDIO bus\n");
+ goto ifree;
+ }
+
+ netdev_info(dev->net, "registered mdio bus %s\n", priv->mdio->id);
+ return 0;
+
+ifree:
+ kfree(priv->mdio->irq);
+mfree:
+ mdiobus_free(priv->mdio);
+ return ret;
+}
+
+static void ax88172a_remove_mdio(struct usbnet *dev)
+{
+ struct ax88172a_private *priv = dev->driver_priv;
+
+ netdev_info(dev->net, "deregistering mdio bus %s\n", priv->mdio->id);
+ mdiobus_unregister(priv->mdio);
+ kfree(priv->mdio->irq);
+ mdiobus_free(priv->mdio);
+}
+
+static const struct net_device_ops ax88172a_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = asix_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = ax88172a_ioctl,
+ .ndo_set_rx_mode = asix_set_multicast,
+};
+
+static int ax88172a_get_settings(struct net_device *net,
+ struct ethtool_cmd *cmd)
+{
+ if (!net->phydev)
+ return -ENODEV;
+
+ return phy_ethtool_gset(net->phydev, cmd);
+}
+
+static int ax88172a_set_settings(struct net_device *net,
+ struct ethtool_cmd *cmd)
+{
+ if (!net->phydev)
+ return -ENODEV;
+
+ return phy_ethtool_sset(net->phydev, cmd);
+}
+
+static int ax88172a_nway_reset(struct net_device *net)
+{
+ if (!net->phydev)
+ return -ENODEV;
+
+ return phy_start_aneg(net->phydev);
+}
+
+static const struct ethtool_ops ax88172a_ethtool_ops = {
+ .get_drvinfo = asix_get_drvinfo,
+ .get_link = usbnet_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = asix_get_wol,
+ .set_wol = asix_set_wol,
+ .get_eeprom_len = asix_get_eeprom_len,
+ .get_eeprom = asix_get_eeprom,
+ .set_eeprom = asix_set_eeprom,
+ .get_settings = ax88172a_get_settings,
+ .set_settings = ax88172a_set_settings,
+ .nway_reset = ax88172a_nway_reset,
+};
+
+static int ax88172a_reset_phy(struct usbnet *dev, int embd_phy)
+{
+ int ret;
+
+ ret = asix_sw_reset(dev, AX_SWRESET_IPPD);
+ if (ret < 0)
+ goto err;
+
+ msleep(150);
+ ret = asix_sw_reset(dev, AX_SWRESET_CLEAR);
+ if (ret < 0)
+ goto err;
+
+ msleep(150);
+
+ ret = asix_sw_reset(dev, embd_phy ? AX_SWRESET_IPRL : AX_SWRESET_IPPD);
+ if (ret < 0)
+ goto err;
+
+ return 0;
+
+err:
+ return ret;
+}
+
+
+static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ u8 buf[ETH_ALEN];
+ struct ax88172a_private *priv;
+
+ usbnet_get_endpoints(dev, intf);
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev->driver_priv = priv;
+
+ /* Get the MAC address */
+ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to read MAC address: %d\n", ret);
+ goto free;
+ }
+ memcpy(dev->net->dev_addr, buf, ETH_ALEN);
+
+ dev->net->netdev_ops = &ax88172a_netdev_ops;
+ dev->net->ethtool_ops = &ax88172a_ethtool_ops;
+
+ /* are we using the internal or the external phy? */
+ ret = asix_read_cmd(dev, AX_CMD_SW_PHY_STATUS, 0, 0, 1, buf);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to read software interface selection register: %d\n",
+ ret);
+ goto free;
+ }
+
+ netdev_dbg(dev->net, "AX_CMD_SW_PHY_STATUS = 0x%02x\n", buf[0]);
+ switch (buf[0] & AX_PHY_SELECT_MASK) {
+ case AX_PHY_SELECT_INTERNAL:
+ netdev_dbg(dev->net, "use internal phy\n");
+ priv->use_embdphy = 1;
+ break;
+ case AX_PHY_SELECT_EXTERNAL:
+ netdev_dbg(dev->net, "use external phy\n");
+ priv->use_embdphy = 0;
+ break;
+ default:
+ netdev_err(dev->net, "Interface mode not supported by driver\n");
+ ret = -ENOTSUPP;
+ goto free;
+ }
+
+ priv->phy_addr = asix_read_phy_addr(dev, priv->use_embdphy);
+ ax88172a_reset_phy(dev, priv->use_embdphy);
+
+ /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
+ if (dev->driver_info->flags & FLAG_FRAMING_AX) {
+ /* hard_mtu is still the default - the device does not support
+ jumbo eth frames */
+ dev->rx_urb_size = 2048;
+ }
+
+ /* init MDIO bus */
+ ret = ax88172a_init_mdio(dev);
+ if (ret)
+ goto free;
+
+ return 0;
+
+free:
+ kfree(priv);
+ return ret;
+}
+
+static int ax88172a_stop(struct usbnet *dev)
+{
+ struct ax88172a_private *priv = dev->driver_priv;
+
+ netdev_dbg(dev->net, "Stopping interface\n");
+
+ if (priv->phydev) {
+ netdev_info(dev->net, "Disconnecting from phy %s\n",
+ priv->phy_name);
+ phy_stop(priv->phydev);
+ phy_disconnect(priv->phydev);
+ }
+
+ return 0;
+}
+
+static void ax88172a_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct ax88172a_private *priv = dev->driver_priv;
+
+ ax88172a_remove_mdio(dev);
+ kfree(priv);
+}
+
+static int ax88172a_reset(struct usbnet *dev)
+{
+ struct asix_data *data = (struct asix_data *)&dev->data;
+ struct ax88172a_private *priv = dev->driver_priv;
+ int ret;
+ u16 rx_ctl;
+
+ ax88172a_reset_phy(dev, priv->use_embdphy);
+
+ msleep(150);
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
+ ret = asix_write_rx_ctl(dev, 0x0000);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
+
+ msleep(150);
+
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
+ AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
+ AX88772_IPG2_DEFAULT, 0, NULL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
+ goto out;
+ }
+
+ /* Rewrite MAC address */
+ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
+ ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+ if (ret < 0)
+ goto out;
+
+ /* Set RX_CTL to default values with 2k buffer, and enable cactus */
+ ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = asix_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
+ rx_ctl);
+
+ rx_ctl = asix_read_medium_status(dev);
+ netdev_dbg(dev->net, "Medium Status is 0x%04x after all initializations\n",
+ rx_ctl);
+
+ /* Connect to PHY */
+ snprintf(priv->phy_name, 20, PHY_ID_FMT,
+ priv->mdio->id, priv->phy_addr);
+
+ priv->phydev = phy_connect(dev->net, priv->phy_name,
+ &ax88172a_adjust_link,
+ PHY_INTERFACE_MODE_MII);
+ if (IS_ERR(priv->phydev)) {
+ netdev_err(dev->net, "Could not connect to PHY device %s\n",
+ priv->phy_name);
+ ret = PTR_ERR(priv->phydev);
+ goto out;
+ }
+
+ netdev_info(dev->net, "Connected to phy %s\n", priv->phy_name);
+
+ /* During power-up, the AX88172A set the power down (BMCR_PDOWN)
+ * bit of the PHY. Bring the PHY up again.
+ */
+ genphy_resume(priv->phydev);
+ phy_start(priv->phydev);
+
+ return 0;
+
+out:
+ return ret;
+
+}
+
+static int ax88172a_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct ax88172a_private *dp = dev->driver_priv;
+ struct asix_rx_fixup_info *rx = &dp->rx_fixup_info;
+
+ return asix_rx_fixup_internal(dev, skb, rx);
+}
+
+const struct driver_info ax88172a_info = {
+ .description = "ASIX AX88172A USB 2.0 Ethernet",
+ .bind = ax88172a_bind,
+ .reset = ax88172a_reset,
+ .stop = ax88172a_stop,
+ .unbind = ax88172a_unbind,
+ .status = ax88172a_status,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
+ FLAG_MULTI_PACKET,
+ .rx_fixup = ax88172a_rx_fixup,
+ .tx_fixup = asix_tx_fixup,
+};
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
new file mode 100644
index 0000000..e6338c1
--- /dev/null
+++ b/drivers/net/usb/ax88179_178a.c
@@ -0,0 +1,1756 @@
+/*
+ * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
+ *
+ * Copyright (C) 2011-2013 ASIX
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <uapi/linux/mdio.h>
+#include <linux/mdio.h>
+
+#define AX88179_PHY_ID 0x03
+#define AX_EEPROM_LEN 0x100
+#define AX88179_EEPROM_MAGIC 0x17900b95
+#define AX_MCAST_FLTSIZE 8
+#define AX_MAX_MCAST 64
+#define AX_INT_PPLS_LINK ((u32)BIT(16))
+#define AX_RXHDR_L4_TYPE_MASK 0x1c
+#define AX_RXHDR_L4_TYPE_UDP 4
+#define AX_RXHDR_L4_TYPE_TCP 16
+#define AX_RXHDR_L3CSUM_ERR 2
+#define AX_RXHDR_L4CSUM_ERR 1
+#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
+#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
+#define AX_ACCESS_MAC 0x01
+#define AX_ACCESS_PHY 0x02
+#define AX_ACCESS_EEPROM 0x04
+#define AX_ACCESS_EFUS 0x05
+#define AX_PAUSE_WATERLVL_HIGH 0x54
+#define AX_PAUSE_WATERLVL_LOW 0x55
+
+#define PHYSICAL_LINK_STATUS 0x02
+ #define AX_USB_SS 0x04
+ #define AX_USB_HS 0x02
+
+#define GENERAL_STATUS 0x03
+/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
+ #define AX_SECLD 0x04
+
+#define AX_SROM_ADDR 0x07
+#define AX_SROM_CMD 0x0a
+ #define EEP_RD 0x04
+ #define EEP_BUSY 0x10
+
+#define AX_SROM_DATA_LOW 0x08
+#define AX_SROM_DATA_HIGH 0x09
+
+#define AX_RX_CTL 0x0b
+ #define AX_RX_CTL_DROPCRCERR 0x0100
+ #define AX_RX_CTL_IPE 0x0200
+ #define AX_RX_CTL_START 0x0080
+ #define AX_RX_CTL_AP 0x0020
+ #define AX_RX_CTL_AM 0x0010
+ #define AX_RX_CTL_AB 0x0008
+ #define AX_RX_CTL_AMALL 0x0002
+ #define AX_RX_CTL_PRO 0x0001
+ #define AX_RX_CTL_STOP 0x0000
+
+#define AX_NODE_ID 0x10
+#define AX_MULFLTARY 0x16
+
+#define AX_MEDIUM_STATUS_MODE 0x22
+ #define AX_MEDIUM_GIGAMODE 0x01
+ #define AX_MEDIUM_FULL_DUPLEX 0x02
+ #define AX_MEDIUM_EN_125MHZ 0x08
+ #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
+ #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
+ #define AX_MEDIUM_RECEIVE_EN 0x100
+ #define AX_MEDIUM_PS 0x200
+ #define AX_MEDIUM_JUMBO_EN 0x8040
+
+#define AX_MONITOR_MOD 0x24
+ #define AX_MONITOR_MODE_RWLC 0x02
+ #define AX_MONITOR_MODE_RWMP 0x04
+ #define AX_MONITOR_MODE_PMEPOL 0x20
+ #define AX_MONITOR_MODE_PMETYPE 0x40
+
+#define AX_GPIO_CTRL 0x25
+ #define AX_GPIO_CTRL_GPIO3EN 0x80
+ #define AX_GPIO_CTRL_GPIO2EN 0x40
+ #define AX_GPIO_CTRL_GPIO1EN 0x20
+
+#define AX_PHYPWR_RSTCTL 0x26
+ #define AX_PHYPWR_RSTCTL_BZ 0x0010
+ #define AX_PHYPWR_RSTCTL_IPRL 0x0020
+ #define AX_PHYPWR_RSTCTL_AT 0x1000
+
+#define AX_RX_BULKIN_QCTRL 0x2e
+#define AX_CLK_SELECT 0x33
+ #define AX_CLK_SELECT_BCS 0x01
+ #define AX_CLK_SELECT_ACS 0x02
+ #define AX_CLK_SELECT_ULR 0x08
+
+#define AX_RXCOE_CTL 0x34
+ #define AX_RXCOE_IP 0x01
+ #define AX_RXCOE_TCP 0x02
+ #define AX_RXCOE_UDP 0x04
+ #define AX_RXCOE_TCPV6 0x20
+ #define AX_RXCOE_UDPV6 0x40
+
+#define AX_TXCOE_CTL 0x35
+ #define AX_TXCOE_IP 0x01
+ #define AX_TXCOE_TCP 0x02
+ #define AX_TXCOE_UDP 0x04
+ #define AX_TXCOE_TCPV6 0x20
+ #define AX_TXCOE_UDPV6 0x40
+
+#define AX_LEDCTRL 0x73
+
+#define GMII_PHY_PHYSR 0x11
+ #define GMII_PHY_PHYSR_SMASK 0xc000
+ #define GMII_PHY_PHYSR_GIGA 0x8000
+ #define GMII_PHY_PHYSR_100 0x4000
+ #define GMII_PHY_PHYSR_FULL 0x2000
+ #define GMII_PHY_PHYSR_LINK 0x400
+
+#define GMII_LED_ACT 0x1a
+ #define GMII_LED_ACTIVE_MASK 0xff8f
+ #define GMII_LED0_ACTIVE BIT(4)
+ #define GMII_LED1_ACTIVE BIT(5)
+ #define GMII_LED2_ACTIVE BIT(6)
+
+#define GMII_LED_LINK 0x1c
+ #define GMII_LED_LINK_MASK 0xf888
+ #define GMII_LED0_LINK_10 BIT(0)
+ #define GMII_LED0_LINK_100 BIT(1)
+ #define GMII_LED0_LINK_1000 BIT(2)
+ #define GMII_LED1_LINK_10 BIT(4)
+ #define GMII_LED1_LINK_100 BIT(5)
+ #define GMII_LED1_LINK_1000 BIT(6)
+ #define GMII_LED2_LINK_10 BIT(8)
+ #define GMII_LED2_LINK_100 BIT(9)
+ #define GMII_LED2_LINK_1000 BIT(10)
+ #define LED0_ACTIVE BIT(0)
+ #define LED0_LINK_10 BIT(1)
+ #define LED0_LINK_100 BIT(2)
+ #define LED0_LINK_1000 BIT(3)
+ #define LED0_FD BIT(4)
+ #define LED0_USB3_MASK 0x001f
+ #define LED1_ACTIVE BIT(5)
+ #define LED1_LINK_10 BIT(6)
+ #define LED1_LINK_100 BIT(7)
+ #define LED1_LINK_1000 BIT(8)
+ #define LED1_FD BIT(9)
+ #define LED1_USB3_MASK 0x03e0
+ #define LED2_ACTIVE BIT(10)
+ #define LED2_LINK_1000 BIT(13)
+ #define LED2_LINK_100 BIT(12)
+ #define LED2_LINK_10 BIT(11)
+ #define LED2_FD BIT(14)
+ #define LED_VALID BIT(15)
+ #define LED2_USB3_MASK 0x7c00
+
+#define GMII_PHYPAGE 0x1e
+#define GMII_PHY_PAGE_SELECT 0x1f
+ #define GMII_PHY_PGSEL_EXT 0x0007
+ #define GMII_PHY_PGSEL_PAGE0 0x0000
+ #define GMII_PHY_PGSEL_PAGE3 0x0003
+ #define GMII_PHY_PGSEL_PAGE5 0x0005
+
+struct ax88179_data {
+ u8 eee_enabled;
+ u8 eee_active;
+ u16 rxctl;
+ u16 reserved;
+};
+
+struct ax88179_int_data {
+ __le32 intdata1;
+ __le32 intdata2;
+};
+
+static const struct {
+ unsigned char ctrl, timer_l, timer_h, size, ifg;
+} AX88179_BULKIN_SIZE[] = {
+ {7, 0x4f, 0, 0x12, 0xff},
+ {7, 0x20, 3, 0x16, 0xff},
+ {7, 0xae, 7, 0x18, 0xff},
+ {7, 0xcc, 0x4c, 0x18, 8},
+};
+
+static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data, int in_pm)
+{
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_read_cmd;
+ else
+ fn = usbnet_read_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data, int in_pm)
+{
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_write_cmd;
+ else
+ fn = usbnet_write_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data)
+{
+ u16 buf;
+
+ if (2 == size) {
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, &buf,
+ size);
+ } else {
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, data,
+ size);
+ }
+}
+
+static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data)
+{
+ int ret;
+
+ if (2 == size) {
+ u16 buf;
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
+ le16_to_cpus(&buf);
+ *((u16 *)data) = buf;
+ } else if (4 == size) {
+ u32 buf;
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
+ le32_to_cpus(&buf);
+ *((u32 *)data) = buf;
+ } else {
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
+ }
+
+ return ret;
+}
+
+static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data)
+{
+ int ret;
+
+ if (2 == size) {
+ u16 buf;
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, &buf, 1);
+ } else {
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, data, 1);
+ }
+
+ return ret;
+}
+
+static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int ret;
+
+ if (2 == size) {
+ u16 buf;
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
+ le16_to_cpus(&buf);
+ *((u16 *)data) = buf;
+ } else if (4 == size) {
+ u32 buf;
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
+ le32_to_cpus(&buf);
+ *((u32 *)data) = buf;
+ } else {
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
+ }
+
+ return ret;
+}
+
+static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int ret;
+
+ if (2 == size) {
+ u16 buf;
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, &buf, 0);
+ } else {
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, data, 0);
+ }
+
+ return ret;
+}
+
+static void ax88179_status(struct usbnet *dev, struct urb *urb)
+{
+ struct ax88179_int_data *event;
+ u32 link;
+
+ if (urb->actual_length < 8)
+ return;
+
+ event = urb->transfer_buffer;
+ le32_to_cpus((void *)&event->intdata1);
+
+ link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
+
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
+ }
+}
+
+static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res;
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+ return res;
+}
+
+static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
+ int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res = (u16) val;
+
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+}
+
+static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
+ u16 devad)
+{
+ u16 tmp16;
+ int ret;
+
+ tmp16 = devad;
+ ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_MMD_CTRL, 2, &tmp16);
+
+ tmp16 = prtad;
+ ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_MMD_DATA, 2, &tmp16);
+
+ tmp16 = devad | MII_MMD_CTRL_NOINCR;
+ ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_MMD_CTRL, 2, &tmp16);
+
+ return ret;
+}
+
+static int
+ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
+{
+ int ret;
+ u16 tmp16;
+
+ ax88179_phy_mmd_indirect(dev, prtad, devad);
+
+ ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_MMD_DATA, 2, &tmp16);
+ if (ret < 0)
+ return ret;
+
+ return tmp16;
+}
+
+static int
+ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
+ u16 data)
+{
+ int ret;
+
+ ax88179_phy_mmd_indirect(dev, prtad, devad);
+
+ ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_MMD_DATA, 2, &data);
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ u16 tmp16;
+ u8 tmp8;
+
+ usbnet_suspend(intf, message);
+
+ /* Disable RX path */
+ ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+
+ /* Force bulk-in zero length */
+ ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
+ 2, 2, &tmp16);
+
+ tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
+ 2, 2, &tmp16);
+
+ /* change clock */
+ tmp8 = 0;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
+
+ /* Configure RX control register => stop operation */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+
+ return 0;
+}
+
+/* This function is used to enable the autodetach function. */
+/* This function is determined by offset 0x43 of EEPROM */
+static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
+{
+ u16 tmp16;
+ u8 tmp8;
+ int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
+ int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
+
+ if (!in_pm) {
+ fnr = ax88179_read_cmd;
+ fnw = ax88179_write_cmd;
+ } else {
+ fnr = ax88179_read_cmd_nopm;
+ fnw = ax88179_write_cmd_nopm;
+ }
+
+ if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
+ return 0;
+
+ if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
+ return 0;
+
+ /* Enable Auto Detach bit */
+ tmp8 = 0;
+ fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
+ tmp8 |= AX_CLK_SELECT_ULR;
+ fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
+
+ fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
+ tmp16 |= AX_PHYPWR_RSTCTL_AT;
+ fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
+
+ return 0;
+}
+
+static int ax88179_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ u16 tmp16;
+ u8 tmp8;
+
+ usbnet_link_change(dev, 0, 0);
+
+ /* Power up ethernet PHY */
+ tmp16 = 0;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
+ 2, 2, &tmp16);
+ udelay(1000);
+
+ tmp16 = AX_PHYPWR_RSTCTL_IPRL;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
+ 2, 2, &tmp16);
+ msleep(200);
+
+ /* Ethernet PHY Auto Detach*/
+ ax88179_auto_detach(dev, 1);
+
+ /* Enable clock */
+ ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
+ tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
+ msleep(100);
+
+ /* Configure RX control register => start operation */
+ tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
+ AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
+ ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+
+ return usbnet_resume(intf);
+}
+
+static void
+ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt;
+
+ if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
+ 1, 1, &opt) < 0) {
+ wolinfo->supported = 0;
+ wolinfo->wolopts = 0;
+ return;
+ }
+
+ wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
+ wolinfo->wolopts = 0;
+ if (opt & AX_MONITOR_MODE_RWLC)
+ wolinfo->wolopts |= WAKE_PHY;
+ if (opt & AX_MONITOR_MODE_RWMP)
+ wolinfo->wolopts |= WAKE_MAGIC;
+}
+
+static int
+ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt = 0;
+
+ if (wolinfo->wolopts & WAKE_PHY)
+ opt |= AX_MONITOR_MODE_RWLC;
+ if (wolinfo->wolopts & WAKE_MAGIC)
+ opt |= AX_MONITOR_MODE_RWMP;
+
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
+ 1, 1, &opt) < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ax88179_get_eeprom_len(struct net_device *net)
+{
+ return AX_EEPROM_LEN;
+}
+
+static int
+ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 *eeprom_buff;
+ int first_word, last_word;
+ int i, ret;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = AX88179_EEPROM_MAGIC;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+ eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ /* ax88179/178A returns 2 bytes from eeprom on read */
+ for (i = first_word; i <= last_word; i++) {
+ ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
+ &eeprom_buff[i - first_word],
+ 0);
+ if (ret < 0) {
+ kfree(eeprom_buff);
+ return -EIO;
+ }
+ }
+
+ memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
+ kfree(eeprom_buff);
+ return 0;
+}
+
+static int ax88179_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ return mii_ethtool_gset(&dev->mii, cmd);
+}
+
+static int ax88179_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ return mii_ethtool_sset(&dev->mii, cmd);
+}
+
+static int
+ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
+{
+ int val;
+
+ /* Get Supported EEE */
+ val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
+ MDIO_MMD_PCS);
+ if (val < 0)
+ return val;
+ data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
+
+ /* Get advertisement EEE */
+ val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
+ MDIO_MMD_AN);
+ if (val < 0)
+ return val;
+ data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ /* Get LP advertisement EEE */
+ val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
+ MDIO_MMD_AN);
+ if (val < 0)
+ return val;
+ data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ return 0;
+}
+
+static int
+ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
+{
+ u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
+
+ return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
+ MDIO_MMD_AN, tmp16);
+}
+
+static int ax88179_chk_eee(struct usbnet *dev)
+{
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ struct ax88179_data *priv = (struct ax88179_data *)dev->data;
+
+ mii_ethtool_gset(&dev->mii, &ecmd);
+
+ if (ecmd.duplex & DUPLEX_FULL) {
+ int eee_lp, eee_cap, eee_adv;
+ u32 lp, cap, adv, supported = 0;
+
+ eee_cap = ax88179_phy_read_mmd_indirect(dev,
+ MDIO_PCS_EEE_ABLE,
+ MDIO_MMD_PCS);
+ if (eee_cap < 0) {
+ priv->eee_active = 0;
+ return false;
+ }
+
+ cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
+ if (!cap) {
+ priv->eee_active = 0;
+ return false;
+ }
+
+ eee_lp = ax88179_phy_read_mmd_indirect(dev,
+ MDIO_AN_EEE_LPABLE,
+ MDIO_MMD_AN);
+ if (eee_lp < 0) {
+ priv->eee_active = 0;
+ return false;
+ }
+
+ eee_adv = ax88179_phy_read_mmd_indirect(dev,
+ MDIO_AN_EEE_ADV,
+ MDIO_MMD_AN);
+
+ if (eee_adv < 0) {
+ priv->eee_active = 0;
+ return false;
+ }
+
+ adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
+ lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
+ supported = (ecmd.speed == SPEED_1000) ?
+ SUPPORTED_1000baseT_Full :
+ SUPPORTED_100baseT_Full;
+
+ if (!(lp & adv & supported)) {
+ priv->eee_active = 0;
+ return false;
+ }
+
+ priv->eee_active = 1;
+ return true;
+ }
+
+ priv->eee_active = 0;
+ return false;
+}
+
+static void ax88179_disable_eee(struct usbnet *dev)
+{
+ u16 tmp16;
+
+ tmp16 = GMII_PHY_PGSEL_PAGE3;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp16);
+
+ tmp16 = 0x3246;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_PHYADDR, 2, &tmp16);
+
+ tmp16 = GMII_PHY_PGSEL_PAGE0;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp16);
+}
+
+static void ax88179_enable_eee(struct usbnet *dev)
+{
+ u16 tmp16;
+
+ tmp16 = GMII_PHY_PGSEL_PAGE3;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp16);
+
+ tmp16 = 0x3247;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_PHYADDR, 2, &tmp16);
+
+ tmp16 = GMII_PHY_PGSEL_PAGE5;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp16);
+
+ tmp16 = 0x0680;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ MII_BMSR, 2, &tmp16);
+
+ tmp16 = GMII_PHY_PGSEL_PAGE0;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp16);
+}
+
+static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = (struct ax88179_data *)dev->data;
+
+ edata->eee_enabled = priv->eee_enabled;
+ edata->eee_active = priv->eee_active;
+
+ return ax88179_ethtool_get_eee(dev, edata);
+}
+
+static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = (struct ax88179_data *)dev->data;
+ int ret = -EOPNOTSUPP;
+
+ priv->eee_enabled = edata->eee_enabled;
+ if (!priv->eee_enabled) {
+ ax88179_disable_eee(dev);
+ } else {
+ priv->eee_enabled = ax88179_chk_eee(dev);
+ if (!priv->eee_enabled)
+ return -EOPNOTSUPP;
+
+ ax88179_enable_eee(dev);
+ }
+
+ ret = ax88179_ethtool_set_eee(dev, edata);
+ if (ret)
+ return ret;
+
+ mii_nway_restart(&dev->mii);
+
+ usbnet_link_change(dev, 0, 0);
+
+ return ret;
+}
+
+static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static const struct ethtool_ops ax88179_ethtool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = ax88179_get_wol,
+ .set_wol = ax88179_set_wol,
+ .get_eeprom_len = ax88179_get_eeprom_len,
+ .get_eeprom = ax88179_get_eeprom,
+ .get_settings = ax88179_get_settings,
+ .set_settings = ax88179_set_settings,
+ .get_eee = ax88179_get_eee,
+ .set_eee = ax88179_set_eee,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static void ax88179_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *data = (struct ax88179_data *)dev->data;
+ u8 *m_filter = ((u8 *)dev->data) + 12;
+
+ data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
+
+ if (net->flags & IFF_PROMISC) {
+ data->rxctl |= AX_RX_CTL_PRO;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > AX_MAX_MCAST) {
+ data->rxctl |= AX_RX_CTL_AMALL;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use the 20 byte dev->data for our 8 byte filter buffer
+ * to avoid allocating memory that is tricky to free later
+ */
+ u32 crc_bits;
+ struct netdev_hw_addr *ha;
+
+ memset(m_filter, 0, AX_MCAST_FLTSIZE);
+
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
+ AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
+ m_filter);
+
+ data->rxctl |= AX_RX_CTL_AM;
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
+ 2, 2, &data->rxctl);
+}
+
+static int
+ax88179_set_features(struct net_device *net, netdev_features_t features)
+{
+ u8 tmp;
+ struct usbnet *dev = netdev_priv(net);
+ netdev_features_t changed = net->features ^ features;
+
+ if (changed & NETIF_F_IP_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_IPV6_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_RXCSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
+ AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
+ }
+
+ return 0;
+}
+
+static int ax88179_change_mtu(struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 tmp16;
+
+ if (new_mtu <= 0 || new_mtu > 4088)
+ return -EINVAL;
+
+ net->mtu = new_mtu;
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+
+ if (net->mtu > 1500) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 |= AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ } else {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 &= ~AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ }
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ return 0;
+}
+
+static int ax88179_set_mac_addr(struct net_device *net, void *p)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sockaddr *addr = p;
+ int ret;
+
+ if (netif_running(net))
+ return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
+
+ /* Set the MAC address */
+ ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, net->dev_addr);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static const struct net_device_ops ax88179_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = ax88179_change_mtu,
+ .ndo_set_mac_address = ax88179_set_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = ax88179_ioctl,
+ .ndo_set_rx_mode = ax88179_set_multicast,
+ .ndo_set_features = ax88179_set_features,
+};
+
+static int ax88179_check_eeprom(struct usbnet *dev)
+{
+ u8 i, buf, eeprom[20];
+ u16 csum, delay = HZ / 10;
+ unsigned long jtimeout;
+
+ /* Read EEPROM content */
+ for (i = 0; i < 6; i++) {
+ buf = i;
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
+ 1, 1, &buf) < 0)
+ return -EINVAL;
+
+ buf = EEP_RD;
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
+ 1, 1, &buf) < 0)
+ return -EINVAL;
+
+ jtimeout = jiffies + delay;
+ do {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
+ 1, 1, &buf);
+
+ if (time_after(jiffies, jtimeout))
+ return -EINVAL;
+
+ } while (buf & EEP_BUSY);
+
+ __ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
+ 2, 2, &eeprom[i * 2], 0);
+
+ if ((i == 0) && (eeprom[0] == 0xFF))
+ return -EINVAL;
+ }
+
+ csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
+ csum = (csum >> 8) + (csum & 0xff);
+ if ((csum + eeprom[10]) != 0xff)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
+{
+ u8 i;
+ u8 efuse[64];
+ u16 csum = 0;
+
+ if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
+ return -EINVAL;
+
+ if (*efuse == 0xFF)
+ return -EINVAL;
+
+ for (i = 0; i < 64; i++)
+ csum = csum + efuse[i];
+
+ while (csum > 255)
+ csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
+
+ if (csum != 0xFF)
+ return -EINVAL;
+
+ *ledmode = (efuse[51] << 8) | efuse[52];
+
+ return 0;
+}
+
+static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
+{
+ u16 led;
+
+ /* Loaded the old eFuse LED Mode */
+ if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
+ return -EINVAL;
+
+ led >>= 8;
+ switch (led) {
+ case 0xFF:
+ led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
+ LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
+ LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
+ break;
+ case 0xFE:
+ led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
+ break;
+ case 0xFD:
+ led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
+ LED2_LINK_10 | LED_VALID;
+ break;
+ case 0xFC:
+ led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
+ LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
+ break;
+ default:
+ led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
+ LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
+ LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
+ break;
+ }
+
+ *ledvalue = led;
+
+ return 0;
+}
+
+static int ax88179_led_setting(struct usbnet *dev)
+{
+ u8 ledfd, value = 0;
+ u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
+ unsigned long jtimeout;
+
+ /* Check AX88179 version. UA1 or UA2*/
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
+
+ if (!(value & AX_SECLD)) { /* UA1 */
+ value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
+ AX_GPIO_CTRL_GPIO1EN;
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
+ 1, 1, &value) < 0)
+ return -EINVAL;
+ }
+
+ /* Check EEPROM */
+ if (!ax88179_check_eeprom(dev)) {
+ value = 0x42;
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
+ 1, 1, &value) < 0)
+ return -EINVAL;
+
+ value = EEP_RD;
+ if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
+ 1, 1, &value) < 0)
+ return -EINVAL;
+
+ jtimeout = jiffies + delay;
+ do {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
+ 1, 1, &value);
+
+ if (time_after(jiffies, jtimeout))
+ return -EINVAL;
+
+ } while (value & EEP_BUSY);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
+ 1, 1, &value);
+ ledvalue = (value << 8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
+ 1, 1, &value);
+ ledvalue |= value;
+
+ /* load internal ROM for defaule setting */
+ if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
+ ax88179_convert_old_led(dev, &ledvalue);
+
+ } else if (!ax88179_check_efuse(dev, &ledvalue)) {
+ if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
+ ax88179_convert_old_led(dev, &ledvalue);
+ } else {
+ ax88179_convert_old_led(dev, &ledvalue);
+ }
+
+ tmp = GMII_PHY_PGSEL_EXT;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp);
+
+ tmp = 0x2c;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHYPAGE, 2, &tmp);
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_LED_ACT, 2, &ledact);
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_LED_LINK, 2, &ledlink);
+
+ ledact &= GMII_LED_ACTIVE_MASK;
+ ledlink &= GMII_LED_LINK_MASK;
+
+ if (ledvalue & LED0_ACTIVE)
+ ledact |= GMII_LED0_ACTIVE;
+
+ if (ledvalue & LED1_ACTIVE)
+ ledact |= GMII_LED1_ACTIVE;
+
+ if (ledvalue & LED2_ACTIVE)
+ ledact |= GMII_LED2_ACTIVE;
+
+ if (ledvalue & LED0_LINK_10)
+ ledlink |= GMII_LED0_LINK_10;
+
+ if (ledvalue & LED1_LINK_10)
+ ledlink |= GMII_LED1_LINK_10;
+
+ if (ledvalue & LED2_LINK_10)
+ ledlink |= GMII_LED2_LINK_10;
+
+ if (ledvalue & LED0_LINK_100)
+ ledlink |= GMII_LED0_LINK_100;
+
+ if (ledvalue & LED1_LINK_100)
+ ledlink |= GMII_LED1_LINK_100;
+
+ if (ledvalue & LED2_LINK_100)
+ ledlink |= GMII_LED2_LINK_100;
+
+ if (ledvalue & LED0_LINK_1000)
+ ledlink |= GMII_LED0_LINK_1000;
+
+ if (ledvalue & LED1_LINK_1000)
+ ledlink |= GMII_LED1_LINK_1000;
+
+ if (ledvalue & LED2_LINK_1000)
+ ledlink |= GMII_LED2_LINK_1000;
+
+ tmp = ledact;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_LED_ACT, 2, &tmp);
+
+ tmp = ledlink;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_LED_LINK, 2, &tmp);
+
+ tmp = GMII_PHY_PGSEL_PAGE0;
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PAGE_SELECT, 2, &tmp);
+
+ /* LED full duplex setting */
+ ledfd = 0;
+ if (ledvalue & LED0_FD)
+ ledfd |= 0x01;
+ else if ((ledvalue & LED0_USB3_MASK) == 0)
+ ledfd |= 0x02;
+
+ if (ledvalue & LED1_FD)
+ ledfd |= 0x04;
+ else if ((ledvalue & LED1_USB3_MASK) == 0)
+ ledfd |= 0x08;
+
+ if (ledvalue & LED2_FD)
+ ledfd |= 0x10;
+ else if ((ledvalue & LED2_USB3_MASK) == 0)
+ ledfd |= 0x20;
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
+
+ return 0;
+}
+
+static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u8 buf[5];
+ u16 *tmp16;
+ u8 *tmp;
+ struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
+ struct ethtool_eee eee_data;
+
+ usbnet_get_endpoints(dev, intf);
+
+ tmp16 = (u16 *)buf;
+ tmp = (u8 *)buf;
+
+ memset(ax179_data, 0, sizeof(*ax179_data));
+
+ /* Power up ethernet PHY */
+ *tmp16 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
+ *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
+ msleep(200);
+
+ *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
+ msleep(100);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, dev->net->dev_addr);
+ memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
+
+ /* RX bulk configuration */
+ memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
+
+ dev->rx_urb_size = 1024 * 20;
+
+ *tmp = 0x34;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
+
+ *tmp = 0x52;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
+ 1, 1, tmp);
+
+ dev->net->netdev_ops = &ax88179_netdev_ops;
+ dev->net->ethtool_ops = &ax88179_ethtool_ops;
+ dev->net->needed_headroom = 8;
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = ax88179_mdio_read;
+ dev->mii.mdio_write = ax88179_mdio_write;
+ dev->mii.phy_id_mask = 0xff;
+ dev->mii.reg_num_mask = 0xff;
+ dev->mii.phy_id = 0x03;
+ dev->mii.supports_gmii = 1;
+
+ dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+
+ dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+
+ /* Enable checksum offload */
+ *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
+ AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
+
+ *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
+ AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
+
+ /* Configure RX control register => start operation */
+ *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
+ AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
+
+ *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
+ AX_MONITOR_MODE_RWMP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
+
+ /* Configure default medium type => giga */
+ *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
+ AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
+ AX_MEDIUM_GIGAMODE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, tmp16);
+
+ ax88179_led_setting(dev);
+
+ ax179_data->eee_enabled = 0;
+ ax179_data->eee_active = 0;
+
+ ax88179_disable_eee(dev);
+
+ ax88179_ethtool_get_eee(dev, &eee_data);
+ eee_data.advertised = 0;
+ ax88179_ethtool_set_eee(dev, &eee_data);
+
+ /* Restart autoneg */
+ mii_nway_restart(&dev->mii);
+
+ usbnet_link_change(dev, 0, 0);
+
+ return 0;
+}
+
+static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u16 tmp16;
+
+ /* Configure RX control register => stop operation */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+
+ tmp16 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
+
+ /* Power down ethernet PHY */
+ tmp16 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
+}
+
+static void
+ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
+{
+ skb->ip_summed = CHECKSUM_NONE;
+
+ /* checksum error bit is set */
+ if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
+ (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
+ return;
+
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
+ ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+}
+
+static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct sk_buff *ax_skb;
+ int pkt_cnt;
+ u32 rx_hdr;
+ u16 hdr_off;
+ u32 *pkt_hdr;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ skb_trim(skb, skb->len - 4);
+ memcpy(&rx_hdr, skb_tail_pointer(skb), 4);
+ le32_to_cpus(&rx_hdr);
+
+ pkt_cnt = (u16)rx_hdr;
+ hdr_off = (u16)(rx_hdr >> 16);
+ pkt_hdr = (u32 *)(skb->data + hdr_off);
+
+ while (pkt_cnt--) {
+ u16 pkt_len;
+
+ le32_to_cpus(pkt_hdr);
+ pkt_len = (*pkt_hdr >> 16) & 0x1fff;
+
+ /* Check CRC or runt packet */
+ if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
+ (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
+ skb_pull(skb, (pkt_len + 7) & 0xFFF8);
+ pkt_hdr++;
+ continue;
+ }
+
+ if (pkt_cnt == 0) {
+ /* Skip IP alignment psudo header */
+ skb_pull(skb, 2);
+ skb->len = pkt_len;
+ skb_set_tail_pointer(skb, pkt_len);
+ skb->truesize = pkt_len + sizeof(struct sk_buff);
+ ax88179_rx_checksum(skb, pkt_hdr);
+ return 1;
+ }
+
+ ax_skb = skb_clone(skb, GFP_ATOMIC);
+ if (ax_skb) {
+ ax_skb->len = pkt_len;
+ ax_skb->data = skb->data + 2;
+ skb_set_tail_pointer(ax_skb, pkt_len);
+ ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
+ ax88179_rx_checksum(ax_skb, pkt_hdr);
+ usbnet_skb_return(dev, ax_skb);
+ } else {
+ return 0;
+ }
+
+ skb_pull(skb, (pkt_len + 7) & 0xFFF8);
+ pkt_hdr++;
+ }
+ return 1;
+}
+
+static struct sk_buff *
+ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ u32 tx_hdr1, tx_hdr2;
+ int frame_size = dev->maxpacket;
+ int mss = skb_shinfo(skb)->gso_size;
+ int headroom;
+
+ tx_hdr1 = skb->len;
+ tx_hdr2 = mss;
+ if (((skb->len + 8) % frame_size) == 0)
+ tx_hdr2 |= 0x80008000; /* Enable padding */
+
+ headroom = skb_headroom(skb) - 8;
+
+ if ((skb_header_cloned(skb) || headroom < 0) &&
+ pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_hdr2);
+ skb_copy_to_linear_data(skb, &tx_hdr2, 4);
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_hdr1);
+ skb_copy_to_linear_data(skb, &tx_hdr1, 4);
+
+ return skb;
+}
+
+static int ax88179_link_reset(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
+ u8 tmp[5], link_sts;
+ u16 mode, tmp16, delay = HZ / 10;
+ u32 tmp32 = 0x40000000;
+ unsigned long jtimeout;
+
+ jtimeout = jiffies + delay;
+ while (tmp32 & 0x40000000) {
+ mode = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
+ &ax179_data->rxctl);
+
+ /*link up, check the usb device control TX FIFO full or empty*/
+ ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
+
+ if (time_after(jiffies, jtimeout))
+ return 0;
+ }
+
+ mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
+ AX_MEDIUM_RXFLOW_CTRLEN;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
+ 1, 1, &link_sts);
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
+ GMII_PHY_PHYSR, 2, &tmp16);
+
+ if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
+ return 0;
+ } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
+ mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
+ if (dev->net->mtu > 1500)
+ mode |= AX_MEDIUM_JUMBO_EN;
+
+ if (link_sts & AX_USB_SS)
+ memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
+ else if (link_sts & AX_USB_HS)
+ memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
+ else
+ memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
+ } else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
+ mode |= AX_MEDIUM_PS;
+
+ if (link_sts & (AX_USB_SS | AX_USB_HS))
+ memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
+ else
+ memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
+ } else {
+ memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
+ }
+
+ /* RX bulk configuration */
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
+
+ dev->rx_urb_size = (1024 * (tmp[3] + 2));
+
+ if (tmp16 & GMII_PHY_PHYSR_FULL)
+ mode |= AX_MEDIUM_FULL_DUPLEX;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &mode);
+
+ ax179_data->eee_enabled = ax88179_chk_eee(dev);
+
+ netif_carrier_on(dev->net);
+
+ return 0;
+}
+
+static int ax88179_reset(struct usbnet *dev)
+{
+ u8 buf[5];
+ u16 *tmp16;
+ u8 *tmp;
+ struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
+ struct ethtool_eee eee_data;
+
+ tmp16 = (u16 *)buf;
+ tmp = (u8 *)buf;
+
+ /* Power up ethernet PHY */
+ *tmp16 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
+
+ *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
+ msleep(200);
+
+ *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
+ msleep(100);
+
+ /* Ethernet PHY Auto Detach*/
+ ax88179_auto_detach(dev, 0);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
+ dev->net->dev_addr);
+ memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
+
+ /* RX bulk configuration */
+ memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
+
+ dev->rx_urb_size = 1024 * 20;
+
+ *tmp = 0x34;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
+
+ *tmp = 0x52;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
+ 1, 1, tmp);
+
+ dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+
+ dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+
+ /* Enable checksum offload */
+ *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
+ AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
+
+ *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
+ AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
+
+ /* Configure RX control register => start operation */
+ *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
+ AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
+
+ *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
+ AX_MONITOR_MODE_RWMP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
+
+ /* Configure default medium type => giga */
+ *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
+ AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
+ AX_MEDIUM_GIGAMODE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, tmp16);
+
+ ax88179_led_setting(dev);
+
+ ax179_data->eee_enabled = 0;
+ ax179_data->eee_active = 0;
+
+ ax88179_disable_eee(dev);
+
+ ax88179_ethtool_get_eee(dev, &eee_data);
+ eee_data.advertised = 0;
+ ax88179_ethtool_set_eee(dev, &eee_data);
+
+ /* Restart autoneg */
+ mii_nway_restart(&dev->mii);
+
+ usbnet_link_change(dev, 0, 0);
+
+ return 0;
+}
+
+static int ax88179_stop(struct usbnet *dev)
+{
+ u16 tmp16;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+
+ return 0;
+}
+
+static const struct driver_info ax88179_info = {
+ .description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct driver_info ax88178a_info = {
+ .description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct driver_info dlink_dub1312_info = {
+ .description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct driver_info sitecom_info = {
+ .description = "Sitecom USB 3.0 to Gigabit Adapter",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct driver_info samsung_info = {
+ .description = "Samsung USB Ethernet Adapter",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct driver_info lenovo_info = {
+ .description = "Lenovo OneLinkDock Gigabit LAN",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
+static const struct usb_device_id products[] = {
+{
+ /* ASIX AX88179 10/100/1000 */
+ USB_DEVICE(0x0b95, 0x1790),
+ .driver_info = (unsigned long)&ax88179_info,
+}, {
+ /* ASIX AX88178A 10/100/1000 */
+ USB_DEVICE(0x0b95, 0x178a),
+ .driver_info = (unsigned long)&ax88178a_info,
+}, {
+ /* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
+ USB_DEVICE(0x2001, 0x4a00),
+ .driver_info = (unsigned long)&dlink_dub1312_info,
+}, {
+ /* Sitecom USB 3.0 to Gigabit Adapter */
+ USB_DEVICE(0x0df6, 0x0072),
+ .driver_info = (unsigned long)&sitecom_info,
+}, {
+ /* Samsung USB Ethernet Adapter */
+ USB_DEVICE(0x04e8, 0xa100),
+ .driver_info = (unsigned long)&samsung_info,
+}, {
+ /* Lenovo OneLinkDock Gigabit LAN */
+ USB_DEVICE(0x17ef, 0x304b),
+ .driver_info = (unsigned long)&lenovo_info,
+},
+ { },
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver ax88179_178a_driver = {
+ .name = "ax88179_178a",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = ax88179_suspend,
+ .resume = ax88179_resume,
+ .reset_resume = ax88179_resume,
+ .disconnect = usbnet_disconnect,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(ax88179_178a_driver);
+
+MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
new file mode 100644
index 0000000..2aa1a1d
--- /dev/null
+++ b/drivers/net/usb/catc.c
@@ -0,0 +1,977 @@
+/*
+ * Copyright (c) 2001 Vojtech Pavlik
+ *
+ * CATC EL1210A NetMate USB Ethernet driver
+ *
+ * Sponsored by SuSE
+ *
+ * Based on the work of
+ * Donald Becker
+ *
+ * Old chipset support added by Simon Evans <spse@secret.org.uk> 2002
+ * - adds support for Belkin F5U011
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/ethtool.h>
+#include <linux/crc32.h>
+#include <linux/bitops.h>
+#include <linux/gfp.h>
+#include <asm/uaccess.h>
+
+#undef DEBUG
+
+#include <linux/usb.h>
+
+/*
+ * Version information.
+ */
+
+#define DRIVER_VERSION "v2.8"
+#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
+#define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver"
+#define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static const char driver_name[] = "catc";
+
+/*
+ * Some defines.
+ */
+
+#define STATS_UPDATE (HZ) /* Time between stats updates */
+#define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */
+#define PKT_SZ 1536 /* Max Ethernet packet size */
+#define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */
+#define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */
+#define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */
+#define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */
+
+/*
+ * Control requests.
+ */
+
+enum control_requests {
+ ReadMem = 0xf1,
+ GetMac = 0xf2,
+ Reset = 0xf4,
+ SetMac = 0xf5,
+ SetRxMode = 0xf5, /* F5U011 only */
+ WriteROM = 0xf8,
+ SetReg = 0xfa,
+ GetReg = 0xfb,
+ WriteMem = 0xfc,
+ ReadROM = 0xfd,
+};
+
+/*
+ * Registers.
+ */
+
+enum register_offsets {
+ TxBufCount = 0x20,
+ RxBufCount = 0x21,
+ OpModes = 0x22,
+ TxQed = 0x23,
+ RxQed = 0x24,
+ MaxBurst = 0x25,
+ RxUnit = 0x60,
+ EthStatus = 0x61,
+ StationAddr0 = 0x67,
+ EthStats = 0x69,
+ LEDCtrl = 0x81,
+};
+
+enum eth_stats {
+ TxSingleColl = 0x00,
+ TxMultiColl = 0x02,
+ TxExcessColl = 0x04,
+ RxFramErr = 0x06,
+};
+
+enum op_mode_bits {
+ Op3MemWaits = 0x03,
+ OpLenInclude = 0x08,
+ OpRxMerge = 0x10,
+ OpTxMerge = 0x20,
+ OpWin95bugfix = 0x40,
+ OpLoopback = 0x80,
+};
+
+enum rx_filter_bits {
+ RxEnable = 0x01,
+ RxPolarity = 0x02,
+ RxForceOK = 0x04,
+ RxMultiCast = 0x08,
+ RxPromisc = 0x10,
+ AltRxPromisc = 0x20, /* F5U011 uses different bit */
+};
+
+enum led_values {
+ LEDFast = 0x01,
+ LEDSlow = 0x02,
+ LEDFlash = 0x03,
+ LEDPulse = 0x04,
+ LEDLink = 0x08,
+};
+
+enum link_status {
+ LinkNoChange = 0,
+ LinkGood = 1,
+ LinkBad = 2
+};
+
+/*
+ * The catc struct.
+ */
+
+#define CTRL_RUNNING 0
+#define RX_RUNNING 1
+#define TX_RUNNING 2
+
+struct catc {
+ struct net_device *netdev;
+ struct usb_device *usbdev;
+
+ unsigned long flags;
+
+ unsigned int tx_ptr, tx_idx;
+ unsigned int ctrl_head, ctrl_tail;
+ spinlock_t tx_lock, ctrl_lock;
+
+ u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)];
+ u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)];
+ u8 irq_buf[2];
+ u8 ctrl_buf[64];
+ struct usb_ctrlrequest ctrl_dr;
+
+ struct timer_list timer;
+ u8 stats_buf[8];
+ u16 stats_vals[4];
+ unsigned long last_stats;
+
+ u8 multicast[64];
+
+ struct ctrl_queue {
+ u8 dir;
+ u8 request;
+ u16 value;
+ u16 index;
+ void *buf;
+ int len;
+ void (*callback)(struct catc *catc, struct ctrl_queue *q);
+ } ctrl_queue[CTRL_QUEUE];
+
+ struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb;
+
+ u8 is_f5u011; /* Set if device is an F5U011 */
+ u8 rxmode[2]; /* Used for F5U011 */
+ atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */
+};
+
+/*
+ * Useful macros.
+ */
+
+#define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6)
+#define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0)
+#define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0)
+#define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1)
+#define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size)
+#define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size)
+
+#define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2)
+#define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL)
+#define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL)
+
+#define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL)
+#define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb)
+#define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL)
+
+/*
+ * Receive routines.
+ */
+
+static void catc_rx_done(struct urb *urb)
+{
+ struct catc *catc = urb->context;
+ u8 *pkt_start = urb->transfer_buffer;
+ struct sk_buff *skb;
+ int pkt_len, pkt_offset = 0;
+ int status = urb->status;
+
+ if (!catc->is_f5u011) {
+ clear_bit(RX_RUNNING, &catc->flags);
+ pkt_offset = 2;
+ }
+
+ if (status) {
+ dev_dbg(&urb->dev->dev, "rx_done, status %d, length %d\n",
+ status, urb->actual_length);
+ return;
+ }
+
+ do {
+ if(!catc->is_f5u011) {
+ pkt_len = le16_to_cpup((__le16*)pkt_start);
+ if (pkt_len > urb->actual_length) {
+ catc->netdev->stats.rx_length_errors++;
+ catc->netdev->stats.rx_errors++;
+ break;
+ }
+ } else {
+ pkt_len = urb->actual_length;
+ }
+
+ if (!(skb = dev_alloc_skb(pkt_len)))
+ return;
+
+ skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len);
+ skb_put(skb, pkt_len);
+
+ skb->protocol = eth_type_trans(skb, catc->netdev);
+ netif_rx(skb);
+
+ catc->netdev->stats.rx_packets++;
+ catc->netdev->stats.rx_bytes += pkt_len;
+
+ /* F5U011 only does one packet per RX */
+ if (catc->is_f5u011)
+ break;
+ pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
+
+ } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
+
+ if (catc->is_f5u011) {
+ if (atomic_read(&catc->recq_sz)) {
+ int state;
+ atomic_dec(&catc->recq_sz);
+ netdev_dbg(catc->netdev, "getting extra packet\n");
+ urb->dev = catc->usbdev;
+ if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
+ netdev_dbg(catc->netdev,
+ "submit(rx_urb) status %d\n", state);
+ }
+ } else {
+ clear_bit(RX_RUNNING, &catc->flags);
+ }
+ }
+}
+
+static void catc_irq_done(struct urb *urb)
+{
+ struct catc *catc = urb->context;
+ u8 *data = urb->transfer_buffer;
+ int status = urb->status;
+ unsigned int hasdata = 0, linksts = LinkNoChange;
+ int res;
+
+ if (!catc->is_f5u011) {
+ hasdata = data[1] & 0x80;
+ if (data[1] & 0x40)
+ linksts = LinkGood;
+ else if (data[1] & 0x20)
+ linksts = LinkBad;
+ } else {
+ hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff);
+ if (data[0] == 0x90)
+ linksts = LinkGood;
+ else if (data[0] == 0xA0)
+ linksts = LinkBad;
+ }
+
+ switch (status) {
+ case 0: /* success */
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ /* -EPIPE: should clear the halt */
+ default: /* error */
+ dev_dbg(&urb->dev->dev,
+ "irq_done, status %d, data %02x %02x.\n",
+ status, data[0], data[1]);
+ goto resubmit;
+ }
+
+ if (linksts == LinkGood) {
+ netif_carrier_on(catc->netdev);
+ netdev_dbg(catc->netdev, "link ok\n");
+ }
+
+ if (linksts == LinkBad) {
+ netif_carrier_off(catc->netdev);
+ netdev_dbg(catc->netdev, "link bad\n");
+ }
+
+ if (hasdata) {
+ if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
+ if (catc->is_f5u011)
+ atomic_inc(&catc->recq_sz);
+ } else {
+ catc->rx_urb->dev = catc->usbdev;
+ if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) {
+ dev_err(&catc->usbdev->dev,
+ "submit(rx_urb) status %d\n", res);
+ }
+ }
+ }
+resubmit:
+ res = usb_submit_urb (urb, GFP_ATOMIC);
+ if (res)
+ dev_err(&catc->usbdev->dev,
+ "can't resubmit intr, %s-%s, status %d\n",
+ catc->usbdev->bus->bus_name,
+ catc->usbdev->devpath, res);
+}
+
+/*
+ * Transmit routines.
+ */
+
+static int catc_tx_run(struct catc *catc)
+{
+ int status;
+
+ if (catc->is_f5u011)
+ catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
+
+ catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
+ catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
+ catc->tx_urb->dev = catc->usbdev;
+
+ if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0)
+ dev_err(&catc->usbdev->dev, "submit(tx_urb), status %d\n",
+ status);
+
+ catc->tx_idx = !catc->tx_idx;
+ catc->tx_ptr = 0;
+
+ catc->netdev->trans_start = jiffies;
+ return status;
+}
+
+static void catc_tx_done(struct urb *urb)
+{
+ struct catc *catc = urb->context;
+ unsigned long flags;
+ int r, status = urb->status;
+
+ if (status == -ECONNRESET) {
+ dev_dbg(&urb->dev->dev, "Tx Reset.\n");
+ urb->status = 0;
+ catc->netdev->trans_start = jiffies;
+ catc->netdev->stats.tx_errors++;
+ clear_bit(TX_RUNNING, &catc->flags);
+ netif_wake_queue(catc->netdev);
+ return;
+ }
+
+ if (status) {
+ dev_dbg(&urb->dev->dev, "tx_done, status %d, length %d\n",
+ status, urb->actual_length);
+ return;
+ }
+
+ spin_lock_irqsave(&catc->tx_lock, flags);
+
+ if (catc->tx_ptr) {
+ r = catc_tx_run(catc);
+ if (unlikely(r < 0))
+ clear_bit(TX_RUNNING, &catc->flags);
+ } else {
+ clear_bit(TX_RUNNING, &catc->flags);
+ }
+
+ netif_wake_queue(catc->netdev);
+
+ spin_unlock_irqrestore(&catc->tx_lock, flags);
+}
+
+static netdev_tx_t catc_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct catc *catc = netdev_priv(netdev);
+ unsigned long flags;
+ int r = 0;
+ char *tx_buf;
+
+ spin_lock_irqsave(&catc->tx_lock, flags);
+
+ catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
+ tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
+ if (catc->is_f5u011)
+ *(__be16 *)tx_buf = cpu_to_be16(skb->len);
+ else
+ *(__le16 *)tx_buf = cpu_to_le16(skb->len);
+ skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
+ catc->tx_ptr += skb->len + 2;
+
+ if (!test_and_set_bit(TX_RUNNING, &catc->flags)) {
+ r = catc_tx_run(catc);
+ if (r < 0)
+ clear_bit(TX_RUNNING, &catc->flags);
+ }
+
+ if ((catc->is_f5u011 && catc->tx_ptr) ||
+ (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
+ netif_stop_queue(netdev);
+
+ spin_unlock_irqrestore(&catc->tx_lock, flags);
+
+ if (r >= 0) {
+ catc->netdev->stats.tx_bytes += skb->len;
+ catc->netdev->stats.tx_packets++;
+ }
+
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static void catc_tx_timeout(struct net_device *netdev)
+{
+ struct catc *catc = netdev_priv(netdev);
+
+ dev_warn(&netdev->dev, "Transmit timed out.\n");
+ usb_unlink_urb(catc->tx_urb);
+}
+
+/*
+ * Control messages.
+ */
+
+static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
+{
+ int retval = usb_control_msg(catc->usbdev,
+ dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
+ request, 0x40 | dir, value, index, buf, len, 1000);
+ return retval < 0 ? retval : 0;
+}
+
+static void catc_ctrl_run(struct catc *catc)
+{
+ struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
+ struct usb_device *usbdev = catc->usbdev;
+ struct urb *urb = catc->ctrl_urb;
+ struct usb_ctrlrequest *dr = &catc->ctrl_dr;
+ int status;
+
+ dr->bRequest = q->request;
+ dr->bRequestType = 0x40 | q->dir;
+ dr->wValue = cpu_to_le16(q->value);
+ dr->wIndex = cpu_to_le16(q->index);
+ dr->wLength = cpu_to_le16(q->len);
+
+ urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
+ urb->transfer_buffer_length = q->len;
+ urb->transfer_buffer = catc->ctrl_buf;
+ urb->setup_packet = (void *) dr;
+ urb->dev = usbdev;
+
+ if (!q->dir && q->buf && q->len)
+ memcpy(catc->ctrl_buf, q->buf, q->len);
+
+ if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC)))
+ dev_err(&catc->usbdev->dev, "submit(ctrl_urb) status %d\n",
+ status);
+}
+
+static void catc_ctrl_done(struct urb *urb)
+{
+ struct catc *catc = urb->context;
+ struct ctrl_queue *q;
+ unsigned long flags;
+ int status = urb->status;
+
+ if (status)
+ dev_dbg(&urb->dev->dev, "ctrl_done, status %d, len %d.\n",
+ status, urb->actual_length);
+
+ spin_lock_irqsave(&catc->ctrl_lock, flags);
+
+ q = catc->ctrl_queue + catc->ctrl_tail;
+
+ if (q->dir) {
+ if (q->buf && q->len)
+ memcpy(q->buf, catc->ctrl_buf, q->len);
+ else
+ q->buf = catc->ctrl_buf;
+ }
+
+ if (q->callback)
+ q->callback(catc, q);
+
+ catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
+
+ if (catc->ctrl_head != catc->ctrl_tail)
+ catc_ctrl_run(catc);
+ else
+ clear_bit(CTRL_RUNNING, &catc->flags);
+
+ spin_unlock_irqrestore(&catc->ctrl_lock, flags);
+}
+
+static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
+ u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
+{
+ struct ctrl_queue *q;
+ int retval = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&catc->ctrl_lock, flags);
+
+ q = catc->ctrl_queue + catc->ctrl_head;
+
+ q->dir = dir;
+ q->request = request;
+ q->value = value;
+ q->index = index;
+ q->buf = buf;
+ q->len = len;
+ q->callback = callback;
+
+ catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
+
+ if (catc->ctrl_head == catc->ctrl_tail) {
+ dev_err(&catc->usbdev->dev, "ctrl queue full\n");
+ catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
+ retval = -1;
+ }
+
+ if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
+ catc_ctrl_run(catc);
+
+ spin_unlock_irqrestore(&catc->ctrl_lock, flags);
+
+ return retval;
+}
+
+/*
+ * Statistics.
+ */
+
+static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
+{
+ int index = q->index - EthStats;
+ u16 data, last;
+
+ catc->stats_buf[index] = *((char *)q->buf);
+
+ if (index & 1)
+ return;
+
+ data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
+ last = catc->stats_vals[index >> 1];
+
+ switch (index) {
+ case TxSingleColl:
+ case TxMultiColl:
+ catc->netdev->stats.collisions += data - last;
+ break;
+ case TxExcessColl:
+ catc->netdev->stats.tx_aborted_errors += data - last;
+ catc->netdev->stats.tx_errors += data - last;
+ break;
+ case RxFramErr:
+ catc->netdev->stats.rx_frame_errors += data - last;
+ catc->netdev->stats.rx_errors += data - last;
+ break;
+ }
+
+ catc->stats_vals[index >> 1] = data;
+}
+
+static void catc_stats_timer(unsigned long data)
+{
+ struct catc *catc = (void *) data;
+ int i;
+
+ for (i = 0; i < 8; i++)
+ catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
+
+ mod_timer(&catc->timer, jiffies + STATS_UPDATE);
+}
+
+/*
+ * Receive modes. Broadcast, Multicast, Promisc.
+ */
+
+static void catc_multicast(unsigned char *addr, u8 *multicast)
+{
+ u32 crc;
+
+ crc = ether_crc_le(6, addr);
+ multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
+}
+
+static void catc_set_multicast_list(struct net_device *netdev)
+{
+ struct catc *catc = netdev_priv(netdev);
+ struct netdev_hw_addr *ha;
+ u8 broadcast[ETH_ALEN];
+ u8 rx = RxEnable | RxPolarity | RxMultiCast;
+
+ eth_broadcast_addr(broadcast);
+ memset(catc->multicast, 0, 64);
+
+ catc_multicast(broadcast, catc->multicast);
+ catc_multicast(netdev->dev_addr, catc->multicast);
+
+ if (netdev->flags & IFF_PROMISC) {
+ memset(catc->multicast, 0xff, 64);
+ rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
+ }
+
+ if (netdev->flags & IFF_ALLMULTI) {
+ memset(catc->multicast, 0xff, 64);
+ } else {
+ netdev_for_each_mc_addr(ha, netdev) {
+ u32 crc = ether_crc_le(6, ha->addr);
+ if (!catc->is_f5u011) {
+ catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
+ } else {
+ catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
+ }
+ }
+ }
+ if (!catc->is_f5u011) {
+ catc_set_reg_async(catc, RxUnit, rx);
+ catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
+ } else {
+ f5u011_mchash_async(catc, catc->multicast);
+ if (catc->rxmode[0] != rx) {
+ catc->rxmode[0] = rx;
+ netdev_dbg(catc->netdev,
+ "Setting RX mode to %2.2X %2.2X\n",
+ catc->rxmode[0], catc->rxmode[1]);
+ f5u011_rxmode_async(catc, catc->rxmode);
+ }
+ }
+}
+
+static void catc_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct catc *catc = netdev_priv(dev);
+ strlcpy(info->driver, driver_name, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(catc->usbdev, info->bus_info, sizeof(info->bus_info));
+}
+
+static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct catc *catc = netdev_priv(dev);
+ if (!catc->is_f5u011)
+ return -EOPNOTSUPP;
+
+ cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP;
+ cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP;
+ ethtool_cmd_speed_set(cmd, SPEED_10);
+ cmd->duplex = DUPLEX_HALF;
+ cmd->port = PORT_TP;
+ cmd->phy_address = 0;
+ cmd->transceiver = XCVR_INTERNAL;
+ cmd->autoneg = AUTONEG_DISABLE;
+ cmd->maxtxpkt = 1;
+ cmd->maxrxpkt = 1;
+ return 0;
+}
+
+static const struct ethtool_ops ops = {
+ .get_drvinfo = catc_get_drvinfo,
+ .get_settings = catc_get_settings,
+ .get_link = ethtool_op_get_link
+};
+
+/*
+ * Open, close.
+ */
+
+static int catc_open(struct net_device *netdev)
+{
+ struct catc *catc = netdev_priv(netdev);
+ int status;
+
+ catc->irq_urb->dev = catc->usbdev;
+ if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
+ dev_err(&catc->usbdev->dev, "submit(irq_urb) status %d\n",
+ status);
+ return -1;
+ }
+
+ netif_start_queue(netdev);
+
+ if (!catc->is_f5u011)
+ mod_timer(&catc->timer, jiffies + STATS_UPDATE);
+
+ return 0;
+}
+
+static int catc_stop(struct net_device *netdev)
+{
+ struct catc *catc = netdev_priv(netdev);
+
+ netif_stop_queue(netdev);
+
+ if (!catc->is_f5u011)
+ del_timer_sync(&catc->timer);
+
+ usb_kill_urb(catc->rx_urb);
+ usb_kill_urb(catc->tx_urb);
+ usb_kill_urb(catc->irq_urb);
+ usb_kill_urb(catc->ctrl_urb);
+
+ return 0;
+}
+
+static const struct net_device_ops catc_netdev_ops = {
+ .ndo_open = catc_open,
+ .ndo_stop = catc_stop,
+ .ndo_start_xmit = catc_start_xmit,
+
+ .ndo_tx_timeout = catc_tx_timeout,
+ .ndo_set_rx_mode = catc_set_multicast_list,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/*
+ * USB probe, disconnect.
+ */
+
+static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct device *dev = &intf->dev;
+ struct usb_device *usbdev = interface_to_usbdev(intf);
+ struct net_device *netdev;
+ struct catc *catc;
+ u8 broadcast[ETH_ALEN];
+ int pktsz, ret;
+
+ if (usb_set_interface(usbdev,
+ intf->altsetting->desc.bInterfaceNumber, 1)) {
+ dev_err(dev, "Can't set altsetting 1.\n");
+ return -EIO;
+ }
+
+ netdev = alloc_etherdev(sizeof(struct catc));
+ if (!netdev)
+ return -ENOMEM;
+
+ catc = netdev_priv(netdev);
+
+ netdev->netdev_ops = &catc_netdev_ops;
+ netdev->watchdog_timeo = TX_TIMEOUT;
+ netdev->ethtool_ops = &ops;
+
+ catc->usbdev = usbdev;
+ catc->netdev = netdev;
+
+ spin_lock_init(&catc->tx_lock);
+ spin_lock_init(&catc->ctrl_lock);
+
+ init_timer(&catc->timer);
+ catc->timer.data = (long) catc;
+ catc->timer.function = catc_stats_timer;
+
+ catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
+ catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
+ (!catc->rx_urb) || (!catc->irq_urb)) {
+ dev_err(&intf->dev, "No free urbs available.\n");
+ ret = -ENOMEM;
+ goto fail_free;
+ }
+
+ /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
+ if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 &&
+ le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
+ le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
+ dev_dbg(dev, "Testing for f5u011\n");
+ catc->is_f5u011 = 1;
+ atomic_set(&catc->recq_sz, 0);
+ pktsz = RX_PKT_SZ;
+ } else {
+ pktsz = RX_MAX_BURST * (PKT_SZ + 2);
+ }
+
+ usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
+ NULL, NULL, 0, catc_ctrl_done, catc);
+
+ usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
+ NULL, 0, catc_tx_done, catc);
+
+ usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
+ catc->rx_buf, pktsz, catc_rx_done, catc);
+
+ usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
+ catc->irq_buf, 2, catc_irq_done, catc, 1);
+
+ if (!catc->is_f5u011) {
+ u32 *buf;
+ int i;
+
+ dev_dbg(dev, "Checking memory size\n");
+
+ buf = kmalloc(4, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto fail_free;
+ }
+
+ *buf = 0x12345678;
+ catc_write_mem(catc, 0x7a80, buf, 4);
+ *buf = 0x87654321;
+ catc_write_mem(catc, 0xfa80, buf, 4);
+ catc_read_mem(catc, 0x7a80, buf, 4);
+
+ switch (*buf) {
+ case 0x12345678:
+ catc_set_reg(catc, TxBufCount, 8);
+ catc_set_reg(catc, RxBufCount, 32);
+ dev_dbg(dev, "64k Memory\n");
+ break;
+ default:
+ dev_warn(&intf->dev,
+ "Couldn't detect memory size, assuming 32k\n");
+ case 0x87654321:
+ catc_set_reg(catc, TxBufCount, 4);
+ catc_set_reg(catc, RxBufCount, 16);
+ dev_dbg(dev, "32k Memory\n");
+ break;
+ }
+
+ kfree(buf);
+
+ dev_dbg(dev, "Getting MAC from SEEROM.\n");
+
+ catc_get_mac(catc, netdev->dev_addr);
+
+ dev_dbg(dev, "Setting MAC into registers.\n");
+
+ for (i = 0; i < 6; i++)
+ catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
+
+ dev_dbg(dev, "Filling the multicast list.\n");
+
+ eth_broadcast_addr(broadcast);
+ catc_multicast(broadcast, catc->multicast);
+ catc_multicast(netdev->dev_addr, catc->multicast);
+ catc_write_mem(catc, 0xfa80, catc->multicast, 64);
+
+ dev_dbg(dev, "Clearing error counters.\n");
+
+ for (i = 0; i < 8; i++)
+ catc_set_reg(catc, EthStats + i, 0);
+ catc->last_stats = jiffies;
+
+ dev_dbg(dev, "Enabling.\n");
+
+ catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
+ catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
+ catc_set_reg(catc, LEDCtrl, LEDLink);
+ catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
+ } else {
+ dev_dbg(dev, "Performing reset\n");
+ catc_reset(catc);
+ catc_get_mac(catc, netdev->dev_addr);
+
+ dev_dbg(dev, "Setting RX Mode\n");
+ catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
+ catc->rxmode[1] = 0;
+ f5u011_rxmode(catc, catc->rxmode);
+ }
+ dev_dbg(dev, "Init done.\n");
+ printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n",
+ netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
+ usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr);
+ usb_set_intfdata(intf, catc);
+
+ SET_NETDEV_DEV(netdev, &intf->dev);
+ ret = register_netdev(netdev);
+ if (ret)
+ goto fail_clear_intfdata;
+
+ return 0;
+
+fail_clear_intfdata:
+ usb_set_intfdata(intf, NULL);
+fail_free:
+ usb_free_urb(catc->ctrl_urb);
+ usb_free_urb(catc->tx_urb);
+ usb_free_urb(catc->rx_urb);
+ usb_free_urb(catc->irq_urb);
+ free_netdev(netdev);
+ return ret;
+}
+
+static void catc_disconnect(struct usb_interface *intf)
+{
+ struct catc *catc = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (catc) {
+ unregister_netdev(catc->netdev);
+ usb_free_urb(catc->ctrl_urb);
+ usb_free_urb(catc->tx_urb);
+ usb_free_urb(catc->rx_urb);
+ usb_free_urb(catc->irq_urb);
+ free_netdev(catc->netdev);
+ }
+}
+
+/*
+ * Module functions and tables.
+ */
+
+static struct usb_device_id catc_id_table [] = {
+ { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */
+ { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */
+ { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, catc_id_table);
+
+static struct usb_driver catc_driver = {
+ .name = driver_name,
+ .probe = catc_probe,
+ .disconnect = catc_disconnect,
+ .id_table = catc_id_table,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(catc_driver);
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
new file mode 100644
index 0000000..ff2270e
--- /dev/null
+++ b/drivers/net/usb/cdc-phonet.c
@@ -0,0 +1,447 @@
+/*
+ * phonet.c -- USB CDC Phonet host driver
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation. All rights reserved.
+ *
+ * Author: Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/gfp.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/if_phonet.h>
+#include <linux/phonet.h>
+
+#define PN_MEDIA_USB 0x1B
+
+static const unsigned rxq_size = 17;
+
+struct usbpn_dev {
+ struct net_device *dev;
+
+ struct usb_interface *intf, *data_intf;
+ struct usb_device *usb;
+ unsigned int tx_pipe, rx_pipe;
+ u8 active_setting;
+ u8 disconnected;
+
+ unsigned tx_queue;
+ spinlock_t tx_lock;
+
+ spinlock_t rx_lock;
+ struct sk_buff *rx_skb;
+ struct urb *urbs[0];
+};
+
+static void tx_complete(struct urb *req);
+static void rx_complete(struct urb *req);
+
+/*
+ * Network device callbacks
+ */
+static netdev_tx_t usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct usbpn_dev *pnd = netdev_priv(dev);
+ struct urb *req = NULL;
+ unsigned long flags;
+ int err;
+
+ if (skb->protocol != htons(ETH_P_PHONET))
+ goto drop;
+
+ req = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!req)
+ goto drop;
+ usb_fill_bulk_urb(req, pnd->usb, pnd->tx_pipe, skb->data, skb->len,
+ tx_complete, skb);
+ req->transfer_flags = URB_ZERO_PACKET;
+ err = usb_submit_urb(req, GFP_ATOMIC);
+ if (err) {
+ usb_free_urb(req);
+ goto drop;
+ }
+
+ spin_lock_irqsave(&pnd->tx_lock, flags);
+ pnd->tx_queue++;
+ if (pnd->tx_queue >= dev->tx_queue_len)
+ netif_stop_queue(dev);
+ spin_unlock_irqrestore(&pnd->tx_lock, flags);
+ return NETDEV_TX_OK;
+
+drop:
+ dev_kfree_skb(skb);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+}
+
+static void tx_complete(struct urb *req)
+{
+ struct sk_buff *skb = req->context;
+ struct net_device *dev = skb->dev;
+ struct usbpn_dev *pnd = netdev_priv(dev);
+ int status = req->status;
+
+ switch (status) {
+ case 0:
+ dev->stats.tx_bytes += skb->len;
+ break;
+
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ dev->stats.tx_aborted_errors++;
+ default:
+ dev->stats.tx_errors++;
+ dev_dbg(&dev->dev, "TX error (%d)\n", status);
+ }
+ dev->stats.tx_packets++;
+
+ spin_lock(&pnd->tx_lock);
+ pnd->tx_queue--;
+ netif_wake_queue(dev);
+ spin_unlock(&pnd->tx_lock);
+
+ dev_kfree_skb_any(skb);
+ usb_free_urb(req);
+}
+
+static int rx_submit(struct usbpn_dev *pnd, struct urb *req, gfp_t gfp_flags)
+{
+ struct net_device *dev = pnd->dev;
+ struct page *page;
+ int err;
+
+ page = __dev_alloc_page(gfp_flags | __GFP_NOMEMALLOC);
+ if (!page)
+ return -ENOMEM;
+
+ usb_fill_bulk_urb(req, pnd->usb, pnd->rx_pipe, page_address(page),
+ PAGE_SIZE, rx_complete, dev);
+ req->transfer_flags = 0;
+ err = usb_submit_urb(req, gfp_flags);
+ if (unlikely(err)) {
+ dev_dbg(&dev->dev, "RX submit error (%d)\n", err);
+ put_page(page);
+ }
+ return err;
+}
+
+static void rx_complete(struct urb *req)
+{
+ struct net_device *dev = req->context;
+ struct usbpn_dev *pnd = netdev_priv(dev);
+ struct page *page = virt_to_page(req->transfer_buffer);
+ struct sk_buff *skb;
+ unsigned long flags;
+ int status = req->status;
+
+ switch (status) {
+ case 0:
+ spin_lock_irqsave(&pnd->rx_lock, flags);
+ skb = pnd->rx_skb;
+ if (!skb) {
+ skb = pnd->rx_skb = netdev_alloc_skb(dev, 12);
+ if (likely(skb)) {
+ /* Can't use pskb_pull() on page in IRQ */
+ memcpy(skb_put(skb, 1), page_address(page), 1);
+ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+ page, 1, req->actual_length,
+ PAGE_SIZE);
+ page = NULL;
+ }
+ } else {
+ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+ page, 0, req->actual_length,
+ PAGE_SIZE);
+ page = NULL;
+ }
+ if (req->actual_length < PAGE_SIZE)
+ pnd->rx_skb = NULL; /* Last fragment */
+ else
+ skb = NULL;
+ spin_unlock_irqrestore(&pnd->rx_lock, flags);
+ if (skb) {
+ skb->protocol = htons(ETH_P_PHONET);
+ skb_reset_mac_header(skb);
+ __skb_pull(skb, 1);
+ skb->dev = dev;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+
+ netif_rx(skb);
+ }
+ goto resubmit;
+
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ req = NULL;
+ break;
+
+ case -EOVERFLOW:
+ dev->stats.rx_over_errors++;
+ dev_dbg(&dev->dev, "RX overflow\n");
+ break;
+
+ case -EILSEQ:
+ dev->stats.rx_crc_errors++;
+ break;
+ }
+
+ dev->stats.rx_errors++;
+resubmit:
+ if (page)
+ put_page(page);
+ if (req)
+ rx_submit(pnd, req, GFP_ATOMIC);
+}
+
+static int usbpn_close(struct net_device *dev);
+
+static int usbpn_open(struct net_device *dev)
+{
+ struct usbpn_dev *pnd = netdev_priv(dev);
+ int err;
+ unsigned i;
+ unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
+
+ err = usb_set_interface(pnd->usb, num, pnd->active_setting);
+ if (err)
+ return err;
+
+ for (i = 0; i < rxq_size; i++) {
+ struct urb *req = usb_alloc_urb(0, GFP_KERNEL);
+
+ if (!req || rx_submit(pnd, req, GFP_KERNEL)) {
+ usb_free_urb(req);
+ usbpn_close(dev);
+ return -ENOMEM;
+ }
+ pnd->urbs[i] = req;
+ }
+
+ netif_wake_queue(dev);
+ return 0;
+}
+
+static int usbpn_close(struct net_device *dev)
+{
+ struct usbpn_dev *pnd = netdev_priv(dev);
+ unsigned i;
+ unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
+
+ netif_stop_queue(dev);
+
+ for (i = 0; i < rxq_size; i++) {
+ struct urb *req = pnd->urbs[i];
+
+ if (!req)
+ continue;
+ usb_kill_urb(req);
+ usb_free_urb(req);
+ pnd->urbs[i] = NULL;
+ }
+
+ return usb_set_interface(pnd->usb, num, !pnd->active_setting);
+}
+
+static int usbpn_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct if_phonet_req *req = (struct if_phonet_req *)ifr;
+
+ switch (cmd) {
+ case SIOCPNGAUTOCONF:
+ req->ifr_phonet_autoconf.device = PN_DEV_PC;
+ return 0;
+ }
+ return -ENOIOCTLCMD;
+}
+
+static int usbpn_set_mtu(struct net_device *dev, int new_mtu)
+{
+ if ((new_mtu < PHONET_MIN_MTU) || (new_mtu > PHONET_MAX_MTU))
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static const struct net_device_ops usbpn_ops = {
+ .ndo_open = usbpn_open,
+ .ndo_stop = usbpn_close,
+ .ndo_start_xmit = usbpn_xmit,
+ .ndo_do_ioctl = usbpn_ioctl,
+ .ndo_change_mtu = usbpn_set_mtu,
+};
+
+static void usbpn_setup(struct net_device *dev)
+{
+ dev->features = 0;
+ dev->netdev_ops = &usbpn_ops,
+ dev->header_ops = &phonet_header_ops;
+ dev->type = ARPHRD_PHONET;
+ dev->flags = IFF_POINTOPOINT | IFF_NOARP;
+ dev->mtu = PHONET_MAX_MTU;
+ dev->hard_header_len = 1;
+ dev->dev_addr[0] = PN_MEDIA_USB;
+ dev->addr_len = 1;
+ dev->tx_queue_len = 3;
+
+ dev->destructor = free_netdev;
+}
+
+/*
+ * USB driver callbacks
+ */
+static struct usb_device_id usbpn_ids[] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_VENDOR
+ | USB_DEVICE_ID_MATCH_INT_CLASS
+ | USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+ .idVendor = 0x0421, /* Nokia */
+ .bInterfaceClass = USB_CLASS_COMM,
+ .bInterfaceSubClass = 0xFE,
+ },
+ { },
+};
+
+MODULE_DEVICE_TABLE(usb, usbpn_ids);
+
+static struct usb_driver usbpn_driver;
+
+static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ static const char ifname[] = "usbpn%d";
+ const struct usb_cdc_union_desc *union_header = NULL;
+ const struct usb_host_interface *data_desc;
+ struct usb_interface *data_intf;
+ struct usb_device *usbdev = interface_to_usbdev(intf);
+ struct net_device *dev;
+ struct usbpn_dev *pnd;
+ u8 *data;
+ int phonet = 0;
+ int len, err;
+ struct usb_cdc_parsed_header hdr;
+
+ data = intf->altsetting->extra;
+ len = intf->altsetting->extralen;
+ cdc_parse_cdc_header(&hdr, intf, data, len);
+ union_header = hdr.usb_cdc_union_desc;
+ phonet = hdr.phonet_magic_present;
+
+ if (!union_header || !phonet)
+ return -EINVAL;
+
+ data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
+ if (data_intf == NULL)
+ return -ENODEV;
+ /* Data interface has one inactive and one active setting */
+ if (data_intf->num_altsetting != 2)
+ return -EINVAL;
+ if (data_intf->altsetting[0].desc.bNumEndpoints == 0 &&
+ data_intf->altsetting[1].desc.bNumEndpoints == 2)
+ data_desc = data_intf->altsetting + 1;
+ else
+ if (data_intf->altsetting[0].desc.bNumEndpoints == 2 &&
+ data_intf->altsetting[1].desc.bNumEndpoints == 0)
+ data_desc = data_intf->altsetting;
+ else
+ return -EINVAL;
+
+ dev = alloc_netdev(sizeof(*pnd) + sizeof(pnd->urbs[0]) * rxq_size,
+ ifname, NET_NAME_UNKNOWN, usbpn_setup);
+ if (!dev)
+ return -ENOMEM;
+
+ pnd = netdev_priv(dev);
+ SET_NETDEV_DEV(dev, &intf->dev);
+
+ pnd->dev = dev;
+ pnd->usb = usbdev;
+ pnd->intf = intf;
+ pnd->data_intf = data_intf;
+ spin_lock_init(&pnd->tx_lock);
+ spin_lock_init(&pnd->rx_lock);
+ /* Endpoints */
+ if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
+ pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
+ data_desc->endpoint[0].desc.bEndpointAddress);
+ pnd->tx_pipe = usb_sndbulkpipe(usbdev,
+ data_desc->endpoint[1].desc.bEndpointAddress);
+ } else {
+ pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
+ data_desc->endpoint[1].desc.bEndpointAddress);
+ pnd->tx_pipe = usb_sndbulkpipe(usbdev,
+ data_desc->endpoint[0].desc.bEndpointAddress);
+ }
+ pnd->active_setting = data_desc - data_intf->altsetting;
+
+ err = usb_driver_claim_interface(&usbpn_driver, data_intf, pnd);
+ if (err)
+ goto out;
+
+ /* Force inactive mode until the network device is brought UP */
+ usb_set_interface(usbdev, union_header->bSlaveInterface0,
+ !pnd->active_setting);
+ usb_set_intfdata(intf, pnd);
+
+ err = register_netdev(dev);
+ if (err) {
+ usb_driver_release_interface(&usbpn_driver, data_intf);
+ goto out;
+ }
+
+ dev_dbg(&dev->dev, "USB CDC Phonet device found\n");
+ return 0;
+
+out:
+ usb_set_intfdata(intf, NULL);
+ free_netdev(dev);
+ return err;
+}
+
+static void usbpn_disconnect(struct usb_interface *intf)
+{
+ struct usbpn_dev *pnd = usb_get_intfdata(intf);
+
+ if (pnd->disconnected)
+ return;
+
+ pnd->disconnected = 1;
+ usb_driver_release_interface(&usbpn_driver,
+ (pnd->intf == intf) ? pnd->data_intf : pnd->intf);
+ unregister_netdev(pnd->dev);
+}
+
+static struct usb_driver usbpn_driver = {
+ .name = "cdc_phonet",
+ .probe = usbpn_probe,
+ .disconnect = usbpn_disconnect,
+ .id_table = usbpn_ids,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(usbpn_driver);
+
+MODULE_AUTHOR("Remi Denis-Courmont");
+MODULE_DESCRIPTION("USB CDC Phonet host interface");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
new file mode 100644
index 0000000..f7180f8
--- /dev/null
+++ b/drivers/net/usb/cdc_eem.c
@@ -0,0 +1,381 @@
+/*
+ * USB CDC EEM network interface driver
+ * Copyright (C) 2009 Oberthur Technologies
+ * by Omar Laazimani, Olivier Condemine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ctype.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/gfp.h>
+#include <linux/if_vlan.h>
+
+
+/*
+ * This driver is an implementation of the CDC "Ethernet Emulation
+ * Model" (EEM) specification, which encapsulates Ethernet frames
+ * for transport over USB using a simpler USB device model than the
+ * previous CDC "Ethernet Control Model" (ECM, or "CDC Ethernet").
+ *
+ * For details, see www.usb.org/developers/devclass_docs/CDC_EEM10.pdf
+ *
+ * This version has been tested with GIGAntIC WuaoW SIM Smart Card on 2.6.24,
+ * 2.6.27 and 2.6.30rc2 kernel.
+ * It has also been validated on Openmoko Om 2008.12 (based on 2.6.24 kernel).
+ * build on 23-April-2009
+ */
+
+#define EEM_HEAD 2 /* 2 byte header */
+
+/*-------------------------------------------------------------------------*/
+
+static void eem_linkcmd_complete(struct urb *urb)
+{
+ dev_kfree_skb(urb->context);
+ usb_free_urb(urb);
+}
+
+static void eem_linkcmd(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct urb *urb;
+ int status;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ goto fail;
+
+ usb_fill_bulk_urb(urb, dev->udev, dev->out,
+ skb->data, skb->len, eem_linkcmd_complete, skb);
+
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status) {
+ usb_free_urb(urb);
+fail:
+ dev_kfree_skb(skb);
+ netdev_warn(dev->net, "link cmd failure\n");
+ return;
+ }
+}
+
+static int eem_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status = 0;
+
+ status = usbnet_get_endpoints(dev, intf);
+ if (status < 0) {
+ usb_set_intfdata(intf, NULL);
+ usb_driver_release_interface(driver_of(intf), intf);
+ return status;
+ }
+
+ /* no jumbogram (16K) support for now */
+
+ dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN + VLAN_HLEN;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+ return 0;
+}
+
+/*
+ * EEM permits packing multiple Ethernet frames into USB transfers
+ * (a "bundle"), but for TX we don't try to do that.
+ */
+static struct sk_buff *eem_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ struct sk_buff *skb2 = NULL;
+ u16 len = skb->len;
+ u32 crc = 0;
+ int padlen = 0;
+
+ /* When ((len + EEM_HEAD + ETH_FCS_LEN) % dev->maxpacket) is
+ * zero, stick two bytes of zero length EEM packet on the end.
+ * Else the framework would add invalid single byte padding,
+ * since it can't know whether ZLPs will be handled right by
+ * all the relevant hardware and software.
+ */
+ if (!((len + EEM_HEAD + ETH_FCS_LEN) % dev->maxpacket))
+ padlen += 2;
+
+ if (!skb_cloned(skb)) {
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+
+ if ((tailroom >= ETH_FCS_LEN + padlen) &&
+ (headroom >= EEM_HEAD))
+ goto done;
+
+ if ((headroom + tailroom)
+ > (EEM_HEAD + ETH_FCS_LEN + padlen)) {
+ skb->data = memmove(skb->head +
+ EEM_HEAD,
+ skb->data,
+ skb->len);
+ skb_set_tail_pointer(skb, len);
+ goto done;
+ }
+ }
+
+ skb2 = skb_copy_expand(skb, EEM_HEAD, ETH_FCS_LEN + padlen, flags);
+ if (!skb2)
+ return NULL;
+
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+
+done:
+ /* we don't use the "no Ethernet CRC" option */
+ crc = crc32_le(~0, skb->data, skb->len);
+ crc = ~crc;
+
+ put_unaligned_le32(crc, skb_put(skb, 4));
+
+ /* EEM packet header format:
+ * b0..13: length of ethernet frame
+ * b14: bmCRC (1 == valid Ethernet CRC)
+ * b15: bmType (0 == data)
+ */
+ len = skb->len;
+ put_unaligned_le16(BIT(14) | len, skb_push(skb, 2));
+
+ /* Bundle a zero length EEM packet if needed */
+ if (padlen)
+ put_unaligned_le16(0, skb_put(skb, 2));
+
+ return skb;
+}
+
+static int eem_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ /*
+ * Our task here is to strip off framing, leaving skb with one
+ * data frame for the usbnet framework code to process. But we
+ * may have received multiple EEM payloads, or command payloads.
+ * So we must process _everything_ as if it's a header, except
+ * maybe the last data payload
+ *
+ * REVISIT the framework needs updating so that when we consume
+ * all payloads (the last or only message was a command, or a
+ * zero length EEM packet) that is not accounted as an rx_error.
+ */
+ do {
+ struct sk_buff *skb2 = NULL;
+ u16 header;
+ u16 len = 0;
+
+ /* incomplete EEM header? */
+ if (skb->len < EEM_HEAD)
+ return 0;
+
+ /*
+ * EEM packet header format:
+ * b0..14: EEM type dependent (Data or Command)
+ * b15: bmType
+ */
+ header = get_unaligned_le16(skb->data);
+ skb_pull(skb, EEM_HEAD);
+
+ /*
+ * The bmType bit helps to denote when EEM
+ * packet is data or command :
+ * bmType = 0 : EEM data payload
+ * bmType = 1 : EEM (link) command
+ */
+ if (header & BIT(15)) {
+ u16 bmEEMCmd;
+
+ /*
+ * EEM (link) command packet:
+ * b0..10: bmEEMCmdParam
+ * b11..13: bmEEMCmd
+ * b14: bmReserved (must be 0)
+ * b15: 1 (EEM command)
+ */
+ if (header & BIT(14)) {
+ netdev_dbg(dev->net, "reserved command %04x\n",
+ header);
+ continue;
+ }
+
+ bmEEMCmd = (header >> 11) & 0x7;
+ switch (bmEEMCmd) {
+
+ /* Responding to echo requests is mandatory. */
+ case 0: /* Echo command */
+ len = header & 0x7FF;
+
+ /* bogus command? */
+ if (skb->len < len)
+ return 0;
+
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!skb2))
+ goto next;
+ skb_trim(skb2, len);
+ put_unaligned_le16(BIT(15) | (1 << 11) | len,
+ skb_push(skb2, 2));
+ eem_linkcmd(dev, skb2);
+ break;
+
+ /*
+ * Host may choose to ignore hints.
+ * - suspend: peripheral ready to suspend
+ * - response: suggest N millisec polling
+ * - response complete: suggest N sec polling
+ *
+ * Suspend is reported and maybe heeded.
+ */
+ case 2: /* Suspend hint */
+ usbnet_device_suggests_idle(dev);
+ continue;
+ case 3: /* Response hint */
+ case 4: /* Response complete hint */
+ continue;
+
+ /*
+ * Hosts should never receive host-to-peripheral
+ * or reserved command codes; or responses to an
+ * echo command we didn't send.
+ */
+ case 1: /* Echo response */
+ case 5: /* Tickle */
+ default: /* reserved */
+ netdev_warn(dev->net,
+ "unexpected link command %d\n",
+ bmEEMCmd);
+ continue;
+ }
+
+ } else {
+ u32 crc, crc2;
+ int is_last;
+
+ /* zero length EEM packet? */
+ if (header == 0)
+ continue;
+
+ /*
+ * EEM data packet header :
+ * b0..13: length of ethernet frame
+ * b14: bmCRC
+ * b15: 0 (EEM data)
+ */
+ len = header & 0x3FFF;
+
+ /* bogus EEM payload? */
+ if (skb->len < len)
+ return 0;
+
+ /* bogus ethernet frame? */
+ if (len < (ETH_HLEN + ETH_FCS_LEN))
+ goto next;
+
+ /*
+ * Treat the last payload differently: framework
+ * code expects our "fixup" to have stripped off
+ * headers, so "skb" is a data packet (or error).
+ * Else if it's not the last payload, keep "skb"
+ * for further processing.
+ */
+ is_last = (len == skb->len);
+ if (is_last)
+ skb2 = skb;
+ else {
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!skb2))
+ return 0;
+ }
+
+ /*
+ * The bmCRC helps to denote when the CRC field in
+ * the Ethernet frame contains a calculated CRC:
+ * bmCRC = 1 : CRC is calculated
+ * bmCRC = 0 : CRC = 0xDEADBEEF
+ */
+ if (header & BIT(14)) {
+ crc = get_unaligned_le32(skb2->data
+ + len - ETH_FCS_LEN);
+ crc2 = ~crc32_le(~0, skb2->data, skb2->len
+ - ETH_FCS_LEN);
+ } else {
+ crc = get_unaligned_be32(skb2->data
+ + len - ETH_FCS_LEN);
+ crc2 = 0xdeadbeef;
+ }
+ skb_trim(skb2, len - ETH_FCS_LEN);
+
+ if (is_last)
+ return crc == crc2;
+
+ if (unlikely(crc != crc2)) {
+ dev->net->stats.rx_errors++;
+ dev_kfree_skb_any(skb2);
+ } else
+ usbnet_skb_return(dev, skb2);
+ }
+
+next:
+ skb_pull(skb, len);
+ } while (skb->len);
+
+ return 1;
+}
+
+static const struct driver_info eem_info = {
+ .description = "CDC EEM Device",
+ .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
+ .bind = eem_bind,
+ .rx_fixup = eem_rx_fixup,
+ .tx_fixup = eem_tx_fixup,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static const struct usb_device_id products[] = {
+{
+ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_EEM,
+ USB_CDC_PROTO_EEM),
+ .driver_info = (unsigned long) &eem_info,
+},
+{
+ /* EMPTY == end of list */
+},
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver eem_driver = {
+ .name = "cdc_eem",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(eem_driver);
+
+MODULE_AUTHOR("Omar Laazimani <omar.oberthur@gmail.com>");
+MODULE_DESCRIPTION("USB CDC EEM");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
new file mode 100644
index 0000000..f9343be
--- /dev/null
+++ b/drivers/net/usb/cdc_ether.c
@@ -0,0 +1,752 @@
+/*
+ * CDC Ethernet based networking peripherals
+ * Copyright (C) 2003-2005 by David Brownell
+ * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+
+
+#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
+
+static int is_rndis(struct usb_interface_descriptor *desc)
+{
+ return (desc->bInterfaceClass == USB_CLASS_COMM &&
+ desc->bInterfaceSubClass == 2 &&
+ desc->bInterfaceProtocol == 0xff);
+}
+
+static int is_activesync(struct usb_interface_descriptor *desc)
+{
+ return (desc->bInterfaceClass == USB_CLASS_MISC &&
+ desc->bInterfaceSubClass == 1 &&
+ desc->bInterfaceProtocol == 1);
+}
+
+static int is_wireless_rndis(struct usb_interface_descriptor *desc)
+{
+ return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
+ desc->bInterfaceSubClass == 1 &&
+ desc->bInterfaceProtocol == 3);
+}
+
+#else
+
+#define is_rndis(desc) 0
+#define is_activesync(desc) 0
+#define is_wireless_rndis(desc) 0
+
+#endif
+
+static const u8 mbm_guid[16] = {
+ 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
+ 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
+};
+
+static void usbnet_cdc_update_filter(struct usbnet *dev)
+{
+ struct cdc_state *info = (void *) &dev->data;
+ struct usb_interface *intf = info->control;
+ struct net_device *net = dev->net;
+
+ u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
+ | USB_CDC_PACKET_TYPE_BROADCAST;
+
+ /* filtering on the device is an optional feature and not worth
+ * the hassle so we just roughly care about snooping and if any
+ * multicast is requested, we take every multicast
+ */
+ if (net->flags & IFF_PROMISC)
+ cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
+ if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
+ cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
+
+ usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ USB_CDC_SET_ETHERNET_PACKET_FILTER,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ cdc_filter,
+ intf->cur_altsetting->desc.bInterfaceNumber,
+ NULL,
+ 0,
+ USB_CTRL_SET_TIMEOUT
+ );
+}
+
+/* probes control interface, claims data interface, collects the bulk
+ * endpoints, activates data interface (if needed), maybe sets MTU.
+ * all pure cdc, except for certain firmware workarounds, and knowing
+ * that rndis uses one different rule.
+ */
+int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u8 *buf = intf->cur_altsetting->extra;
+ int len = intf->cur_altsetting->extralen;
+ struct usb_interface_descriptor *d;
+ struct cdc_state *info = (void *) &dev->data;
+ int status;
+ int rndis;
+ bool android_rndis_quirk = false;
+ struct usb_driver *driver = driver_of(intf);
+ struct usb_cdc_parsed_header header;
+
+ if (sizeof(dev->data) < sizeof(*info))
+ return -EDOM;
+
+ /* expect strict spec conformance for the descriptors, but
+ * cope with firmware which stores them in the wrong place
+ */
+ if (len == 0 && dev->udev->actconfig->extralen) {
+ /* Motorola SB4100 (and others: Brad Hards says it's
+ * from a Broadcom design) put CDC descriptors here
+ */
+ buf = dev->udev->actconfig->extra;
+ len = dev->udev->actconfig->extralen;
+ dev_dbg(&intf->dev, "CDC descriptors on config\n");
+ }
+
+ /* Maybe CDC descriptors are after the endpoint? This bug has
+ * been seen on some 2Wire Inc RNDIS-ish products.
+ */
+ if (len == 0) {
+ struct usb_host_endpoint *hep;
+
+ hep = intf->cur_altsetting->endpoint;
+ if (hep) {
+ buf = hep->extra;
+ len = hep->extralen;
+ }
+ if (len)
+ dev_dbg(&intf->dev,
+ "CDC descriptors on endpoint\n");
+ }
+
+ /* this assumes that if there's a non-RNDIS vendor variant
+ * of cdc-acm, it'll fail RNDIS requests cleanly.
+ */
+ rndis = (is_rndis(&intf->cur_altsetting->desc) ||
+ is_activesync(&intf->cur_altsetting->desc) ||
+ is_wireless_rndis(&intf->cur_altsetting->desc));
+
+ memset(info, 0, sizeof(*info));
+ info->control = intf;
+
+ cdc_parse_cdc_header(&header, intf, buf, len);
+
+ info->u = header.usb_cdc_union_desc;
+ info->header = header.usb_cdc_header_desc;
+ info->ether = header.usb_cdc_ether_desc;
+ if (!info->u) {
+ if (rndis)
+ goto skip;
+ else /* in that case a quirk is mandatory */
+ goto bad_desc;
+ }
+ /* we need a master/control interface (what we're
+ * probed with) and a slave/data interface; union
+ * descriptors sort this all out.
+ */
+ info->control = usb_ifnum_to_if(dev->udev,
+ info->u->bMasterInterface0);
+ info->data = usb_ifnum_to_if(dev->udev,
+ info->u->bSlaveInterface0);
+ if (!info->control || !info->data) {
+ dev_dbg(&intf->dev,
+ "master #%u/%p slave #%u/%p\n",
+ info->u->bMasterInterface0,
+ info->control,
+ info->u->bSlaveInterface0,
+ info->data);
+ /* fall back to hard-wiring for RNDIS */
+ if (rndis) {
+ android_rndis_quirk = true;
+ goto skip;
+ }
+ goto bad_desc;
+ }
+ if (info->control != intf) {
+ dev_dbg(&intf->dev, "bogus CDC Union\n");
+ /* Ambit USB Cable Modem (and maybe others)
+ * interchanges master and slave interface.
+ */
+ if (info->data == intf) {
+ info->data = info->control;
+ info->control = intf;
+ } else
+ goto bad_desc;
+ }
+
+ /* some devices merge these - skip class check */
+ if (info->control == info->data)
+ goto skip;
+
+ /* a data interface altsetting does the real i/o */
+ d = &info->data->cur_altsetting->desc;
+ if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
+ dev_dbg(&intf->dev, "slave class %u\n",
+ d->bInterfaceClass);
+ goto bad_desc;
+ }
+skip:
+ if ( rndis &&
+ header.usb_cdc_acm_descriptor &&
+ header.usb_cdc_acm_descriptor->bmCapabilities) {
+ dev_dbg(&intf->dev,
+ "ACM capabilities %02x, not really RNDIS?\n",
+ header.usb_cdc_acm_descriptor->bmCapabilities);
+ goto bad_desc;
+ }
+
+ if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
+ dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
+ /* because of Zaurus, we may be ignoring the host
+ * side link address we were given.
+ */
+ }
+
+ if (header.usb_cdc_mdlm_desc &&
+ memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
+ dev_dbg(&intf->dev, "GUID doesn't match\n");
+ goto bad_desc;
+ }
+
+ if (header.usb_cdc_mdlm_detail_desc &&
+ header.usb_cdc_mdlm_detail_desc->bLength <
+ (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
+ dev_dbg(&intf->dev, "Descriptor too short\n");
+ goto bad_desc;
+ }
+
+
+
+ /* Microsoft ActiveSync based and some regular RNDIS devices lack the
+ * CDC descriptors, so we'll hard-wire the interfaces and not check
+ * for descriptors.
+ *
+ * Some Android RNDIS devices have a CDC Union descriptor pointing
+ * to non-existing interfaces. Ignore that and attempt the same
+ * hard-wired 0 and 1 interfaces.
+ */
+ if (rndis && (!info->u || android_rndis_quirk)) {
+ info->control = usb_ifnum_to_if(dev->udev, 0);
+ info->data = usb_ifnum_to_if(dev->udev, 1);
+ if (!info->control || !info->data || info->control != intf) {
+ dev_dbg(&intf->dev,
+ "rndis: master #0/%p slave #1/%p\n",
+ info->control,
+ info->data);
+ goto bad_desc;
+ }
+
+ } else if (!info->header || (!rndis && !info->ether)) {
+ dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
+ info->header ? "" : "header ",
+ info->u ? "" : "union ",
+ info->ether ? "" : "ether ");
+ goto bad_desc;
+ }
+
+ /* claim data interface and set it up ... with side effects.
+ * network traffic can't flow until an altsetting is enabled.
+ */
+ if (info->data != info->control) {
+ status = usb_driver_claim_interface(driver, info->data, dev);
+ if (status < 0)
+ return status;
+ }
+ status = usbnet_get_endpoints(dev, info->data);
+ if (status < 0) {
+ /* ensure immediate exit from usbnet_disconnect */
+ usb_set_intfdata(info->data, NULL);
+ if (info->data != info->control)
+ usb_driver_release_interface(driver, info->data);
+ return status;
+ }
+
+ /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
+ if (info->data != info->control)
+ dev->status = NULL;
+ if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
+ struct usb_endpoint_descriptor *desc;
+
+ dev->status = &info->control->cur_altsetting->endpoint [0];
+ desc = &dev->status->desc;
+ if (!usb_endpoint_is_int_in(desc) ||
+ (le16_to_cpu(desc->wMaxPacketSize)
+ < sizeof(struct usb_cdc_notification)) ||
+ !desc->bInterval) {
+ dev_dbg(&intf->dev, "bad notification endpoint\n");
+ dev->status = NULL;
+ }
+ }
+ if (rndis && !dev->status) {
+ dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
+ usb_set_intfdata(info->data, NULL);
+ usb_driver_release_interface(driver, info->data);
+ return -ENODEV;
+ }
+
+ /* Some devices don't initialise properly. In particular
+ * the packet filter is not reset. There are devices that
+ * don't do reset all the way. So the packet filter should
+ * be set to a sane initial value.
+ */
+ usbnet_cdc_update_filter(dev);
+
+ return 0;
+
+bad_desc:
+ dev_info(&dev->udev->dev, "bad CDC descriptors\n");
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
+
+void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct cdc_state *info = (void *) &dev->data;
+ struct usb_driver *driver = driver_of(intf);
+
+ /* combined interface - nothing to do */
+ if (info->data == info->control)
+ return;
+
+ /* disconnect master --> disconnect slave */
+ if (intf == info->control && info->data) {
+ /* ensure immediate exit from usbnet_disconnect */
+ usb_set_intfdata(info->data, NULL);
+ usb_driver_release_interface(driver, info->data);
+ info->data = NULL;
+ }
+
+ /* and vice versa (just in case) */
+ else if (intf == info->data && info->control) {
+ /* ensure immediate exit from usbnet_disconnect */
+ usb_set_intfdata(info->control, NULL);
+ usb_driver_release_interface(driver, info->control);
+ info->control = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
+
+/* Communications Device Class, Ethernet Control model
+ *
+ * Takes two interfaces. The DATA interface is inactive till an altsetting
+ * is selected. Configuration data includes class descriptors. There's
+ * an optional status endpoint on the control interface.
+ *
+ * This should interop with whatever the 2.4 "CDCEther.c" driver
+ * (by Brad Hards) talked with, with more functionality.
+ */
+
+static void dumpspeed(struct usbnet *dev, __le32 *speeds)
+{
+ netif_info(dev, timer, dev->net,
+ "link speeds: %u kbps up, %u kbps down\n",
+ __le32_to_cpu(speeds[0]) / 1000,
+ __le32_to_cpu(speeds[1]) / 1000);
+}
+
+void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
+{
+ struct usb_cdc_notification *event;
+
+ if (urb->actual_length < sizeof(*event))
+ return;
+
+ /* SPEED_CHANGE can get split into two 8-byte packets */
+ if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
+ dumpspeed(dev, (__le32 *) urb->transfer_buffer);
+ return;
+ }
+
+ event = urb->transfer_buffer;
+ switch (event->bNotificationType) {
+ case USB_CDC_NOTIFY_NETWORK_CONNECTION:
+ netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
+ event->wValue ? "on" : "off");
+ usbnet_link_change(dev, !!event->wValue, 0);
+ break;
+ case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
+ netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
+ urb->actual_length);
+ if (urb->actual_length != (sizeof(*event) + 8))
+ set_bit(EVENT_STS_SPLIT, &dev->flags);
+ else
+ dumpspeed(dev, (__le32 *) &event[1]);
+ break;
+ /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
+ * but there are no standard formats for the response data.
+ */
+ default:
+ netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
+ event->bNotificationType);
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_cdc_status);
+
+int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status;
+ struct cdc_state *info = (void *) &dev->data;
+
+ BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
+ < sizeof(struct cdc_state)));
+
+ status = usbnet_generic_cdc_bind(dev, intf);
+ if (status < 0)
+ return status;
+
+ status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
+ if (status < 0) {
+ usb_set_intfdata(info->data, NULL);
+ usb_driver_release_interface(driver_of(intf), info->data);
+ return status;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
+
+static const struct driver_info cdc_info = {
+ .description = "CDC Ethernet Device",
+ .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
+ .bind = usbnet_cdc_bind,
+ .unbind = usbnet_cdc_unbind,
+ .status = usbnet_cdc_status,
+ .set_rx_mode = usbnet_cdc_update_filter,
+ .manage_power = usbnet_manage_power,
+};
+
+static const struct driver_info wwan_info = {
+ .description = "Mobile Broadband Network Device",
+ .flags = FLAG_WWAN,
+ .bind = usbnet_cdc_bind,
+ .unbind = usbnet_cdc_unbind,
+ .status = usbnet_cdc_status,
+ .set_rx_mode = usbnet_cdc_update_filter,
+ .manage_power = usbnet_manage_power,
+};
+
+/*-------------------------------------------------------------------------*/
+
+#define HUAWEI_VENDOR_ID 0x12D1
+#define NOVATEL_VENDOR_ID 0x1410
+#define ZTE_VENDOR_ID 0x19D2
+#define DELL_VENDOR_ID 0x413C
+#define REALTEK_VENDOR_ID 0x0bda
+#define SAMSUNG_VENDOR_ID 0x04e8
+#define LENOVO_VENDOR_ID 0x17ef
+#define NVIDIA_VENDOR_ID 0x0955
+#define HP_VENDOR_ID 0x03f0
+
+static const struct usb_device_id products[] = {
+/* BLACKLIST !!
+ *
+ * First blacklist any products that are egregiously nonconformant
+ * with the CDC Ethernet specs. Minor braindamage we cope with; when
+ * they're not even trying, needing a separate driver is only the first
+ * of the differences to show up.
+ */
+
+#define ZAURUS_MASTER_INTERFACE \
+ .bInterfaceClass = USB_CLASS_COMM, \
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE
+
+/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
+ * wire-incompatible with true CDC Ethernet implementations.
+ * (And, it seems, needlessly so...)
+ */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8004,
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+},
+
+/* PXA-25x based Sharp Zaurii. Note that it seems some of these
+ * (later models especially) may have shipped only with firmware
+ * advertising false "CDC MDLM" compatibility ... but we're not
+ * clear which models did that, so for now let's assume the worst.
+ */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8005, /* A-300 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8006, /* B-500/SL-5600 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8007, /* C-700 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9031, /* C-750 C-760 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9032, /* SL-6000 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ /* reported with some C860 units */
+ .idProduct = 0x9050, /* C-860 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+},
+
+/* Olympus has some models with a Zaurus-compatible option.
+ * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
+ */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x07B4,
+ .idProduct = 0x0F02, /* R-1000 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = 0,
+},
+
+/* LG Electronics VL600 wants additional headers on every frame */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Novatel USB551L and MC551 - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Novatel E362 - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Novatel Expedite E371 - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* AnyDATA ADU960S - handled by qmi_wwan */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Huawei E1820 - handled by qmi_wwan */
+{
+ USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
+ .driver_info = 0,
+},
+
+/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Samsung USB Ethernet Adapters */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = 0,
+},
+
+/* WHITELIST!!!
+ *
+ * CDC Ether uses two interfaces, not necessarily consecutive.
+ * We match the main interface, ignoring the optional device
+ * class so we could handle devices that aren't exclusively
+ * CDC ether.
+ *
+ * NOTE: this match must come AFTER entries blacklisting devices
+ * because of bugs/quirks in a given product (like Zaurus, above).
+ */
+{
+ /* ZTE (Vodafone) K3805-Z */
+ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+}, {
+ /* ZTE (Vodafone) K3806-Z */
+ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+}, {
+ /* ZTE (Vodafone) K4510-Z */
+ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+}, {
+ /* ZTE (Vodafone) K3770-Z */
+ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+}, {
+ /* ZTE (Vodafone) K3772-Z */
+ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+}, {
+ /* Telit modules */
+ USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = (kernel_ulong_t) &wwan_info,
+}, {
+ /* Dell DW5580 modules */
+ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = (kernel_ulong_t)&wwan_info,
+}, {
+ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &cdc_info,
+}, {
+ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+
+}, {
+ /* Various Huawei modems with a network port like the UMG1831 */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, 255),
+ .driver_info = (unsigned long)&wwan_info,
+},
+ { }, /* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver cdc_driver = {
+ .name = "cdc_ether",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .reset_resume = usbnet_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(cdc_driver);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("USB CDC Ethernet devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
new file mode 100644
index 0000000..96a5028
--- /dev/null
+++ b/drivers/net/usb/cdc_mbim.c
@@ -0,0 +1,654 @@
+/*
+ * Copyright (c) 2012 Smith Micro Software, Inc.
+ * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
+ *
+ * This driver is based on and reuse most of cdc_ncm, which is
+ * Copyright (C) ST-Ericsson 2010-2012
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc-wdm.h>
+#include <linux/usb/cdc_ncm.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
+
+/* alternative VLAN for IP session 0 if not untagged */
+#define MBIM_IPS0_VID 4094
+
+/* driver specific data - must match cdc_ncm usage */
+struct cdc_mbim_state {
+ struct cdc_ncm_ctx *ctx;
+ atomic_t pmcount;
+ struct usb_driver *subdriver;
+ unsigned long _unused;
+ unsigned long flags;
+};
+
+/* flags for the cdc_mbim_state.flags field */
+enum cdc_mbim_flags {
+ FLAG_IPS0_VLAN = 1 << 0, /* IP session 0 is tagged */
+};
+
+/* using a counter to merge subdriver requests with our own into a combined state */
+static int cdc_mbim_manage_power(struct usbnet *dev, int on)
+{
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ int rv = 0;
+
+ dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(&info->pmcount), on);
+
+ if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) {
+ /* need autopm_get/put here to ensure the usbcore sees the new value */
+ rv = usb_autopm_get_interface(dev->intf);
+ dev->intf->needs_remote_wakeup = on;
+ if (!rv)
+ usb_autopm_put_interface(dev->intf);
+ }
+ return 0;
+}
+
+static int cdc_mbim_wdm_manage_power(struct usb_interface *intf, int status)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+
+ /* can be called while disconnecting */
+ if (!dev)
+ return 0;
+
+ return cdc_mbim_manage_power(dev, status);
+}
+
+static int cdc_mbim_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct cdc_mbim_state *info = (void *)&dev->data;
+
+ /* creation of this VLAN is a request to tag IP session 0 */
+ if (vid == MBIM_IPS0_VID)
+ info->flags |= FLAG_IPS0_VLAN;
+ else
+ if (vid >= 512) /* we don't map these to MBIM session */
+ return -EINVAL;
+ return 0;
+}
+
+static int cdc_mbim_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct cdc_mbim_state *info = (void *)&dev->data;
+
+ /* this is a request for an untagged IP session 0 */
+ if (vid == MBIM_IPS0_VID)
+ info->flags &= ~FLAG_IPS0_VLAN;
+ return 0;
+}
+
+static const struct net_device_ops cdc_mbim_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = cdc_ncm_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_vlan_rx_add_vid = cdc_mbim_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = cdc_mbim_rx_kill_vid,
+};
+
+/* Change the control interface altsetting and update the .driver_info
+ * pointer if the matching entry after changing class codes points to
+ * a different struct
+ */
+static int cdc_mbim_set_ctrlalt(struct usbnet *dev, struct usb_interface *intf, u8 alt)
+{
+ struct usb_driver *driver = to_usb_driver(intf->dev.driver);
+ const struct usb_device_id *id;
+ struct driver_info *info;
+ int ret;
+
+ ret = usb_set_interface(dev->udev,
+ intf->cur_altsetting->desc.bInterfaceNumber,
+ alt);
+ if (ret)
+ return ret;
+
+ id = usb_match_id(intf, driver->id_table);
+ if (!id)
+ return -ENODEV;
+
+ info = (struct driver_info *)id->driver_info;
+ if (info != dev->driver_info) {
+ dev_dbg(&intf->dev, "driver_info updated to '%s'\n",
+ info->description);
+ dev->driver_info = info;
+ }
+ return 0;
+}
+
+static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct cdc_ncm_ctx *ctx;
+ struct usb_driver *subdriver = ERR_PTR(-ENODEV);
+ int ret = -ENODEV;
+ u8 data_altsetting = 1;
+ struct cdc_mbim_state *info = (void *)&dev->data;
+
+ /* should we change control altsetting on a NCM/MBIM function? */
+ if (cdc_ncm_select_altsetting(intf) == CDC_NCM_COMM_ALTSETTING_MBIM) {
+ data_altsetting = CDC_NCM_DATA_ALTSETTING_MBIM;
+ ret = cdc_mbim_set_ctrlalt(dev, intf, CDC_NCM_COMM_ALTSETTING_MBIM);
+ if (ret)
+ goto err;
+ ret = -ENODEV;
+ }
+
+ /* we will hit this for NCM/MBIM functions if prefer_mbim is false */
+ if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting))
+ goto err;
+
+ ret = cdc_ncm_bind_common(dev, intf, data_altsetting, dev->driver_info->data);
+ if (ret)
+ goto err;
+
+ ctx = info->ctx;
+
+ /* The MBIM descriptor and the status endpoint are required */
+ if (ctx->mbim_desc && dev->status)
+ subdriver = usb_cdc_wdm_register(ctx->control,
+ &dev->status->desc,
+ le16_to_cpu(ctx->mbim_desc->wMaxControlMessage),
+ cdc_mbim_wdm_manage_power);
+ if (IS_ERR(subdriver)) {
+ ret = PTR_ERR(subdriver);
+ cdc_ncm_unbind(dev, intf);
+ goto err;
+ }
+
+ /* can't let usbnet use the interrupt endpoint */
+ dev->status = NULL;
+ info->subdriver = subdriver;
+
+ /* MBIM cannot do ARP */
+ dev->net->flags |= IFF_NOARP;
+
+ /* no need to put the VLAN tci in the packet headers */
+ dev->net->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_FILTER;
+
+ /* monitor VLAN additions and removals */
+ dev->net->netdev_ops = &cdc_mbim_netdev_ops;
+err:
+ return ret;
+}
+
+static void cdc_mbim_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ struct cdc_ncm_ctx *ctx = info->ctx;
+
+ /* disconnect subdriver from control interface */
+ if (info->subdriver && info->subdriver->disconnect)
+ info->subdriver->disconnect(ctx->control);
+ info->subdriver = NULL;
+
+ /* let NCM unbind clean up both control and data interface */
+ cdc_ncm_unbind(dev, intf);
+}
+
+/* verify that the ethernet protocol is IPv4 or IPv6 */
+static bool is_ip_proto(__be16 proto)
+{
+ switch (proto) {
+ case htons(ETH_P_IP):
+ case htons(ETH_P_IPV6):
+ return true;
+ }
+ return false;
+}
+
+static struct sk_buff *cdc_mbim_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ struct sk_buff *skb_out;
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ struct cdc_ncm_ctx *ctx = info->ctx;
+ __le32 sign = cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN);
+ u16 tci = 0;
+ bool is_ip;
+ u8 *c;
+
+ if (!ctx)
+ goto error;
+
+ if (skb) {
+ if (skb->len <= ETH_HLEN)
+ goto error;
+
+ /* Some applications using e.g. packet sockets will
+ * bypass the VLAN acceleration and create tagged
+ * ethernet frames directly. We primarily look for
+ * the accelerated out-of-band tag, but fall back if
+ * required
+ */
+ skb_reset_mac_header(skb);
+ if (vlan_get_tag(skb, &tci) < 0 && skb->len > VLAN_ETH_HLEN &&
+ __vlan_get_tag(skb, &tci) == 0) {
+ is_ip = is_ip_proto(vlan_eth_hdr(skb)->h_vlan_encapsulated_proto);
+ skb_pull(skb, VLAN_ETH_HLEN);
+ } else {
+ is_ip = is_ip_proto(eth_hdr(skb)->h_proto);
+ skb_pull(skb, ETH_HLEN);
+ }
+
+ /* Is IP session <0> tagged too? */
+ if (info->flags & FLAG_IPS0_VLAN) {
+ /* drop all untagged packets */
+ if (!tci)
+ goto error;
+ /* map MBIM_IPS0_VID to IPS<0> */
+ if (tci == MBIM_IPS0_VID)
+ tci = 0;
+ }
+
+ /* mapping VLANs to MBIM sessions:
+ * no tag => IPS session <0> if !FLAG_IPS0_VLAN
+ * 1 - 255 => IPS session <vlanid>
+ * 256 - 511 => DSS session <vlanid - 256>
+ * 512 - 4093 => unsupported, drop
+ * 4094 => IPS session <0> if FLAG_IPS0_VLAN
+ */
+
+ switch (tci & 0x0f00) {
+ case 0x0000: /* VLAN ID 0 - 255 */
+ if (!is_ip)
+ goto error;
+ c = (u8 *)&sign;
+ c[3] = tci;
+ break;
+ case 0x0100: /* VLAN ID 256 - 511 */
+ if (is_ip)
+ goto error;
+ sign = cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN);
+ c = (u8 *)&sign;
+ c[3] = tci;
+ break;
+ default:
+ netif_err(dev, tx_err, dev->net,
+ "unsupported tci=0x%04x\n", tci);
+ goto error;
+ }
+ }
+
+ spin_lock_bh(&ctx->mtx);
+ skb_out = cdc_ncm_fill_tx_frame(dev, skb, sign);
+ spin_unlock_bh(&ctx->mtx);
+ return skb_out;
+
+error:
+ if (skb)
+ dev_kfree_skb_any(skb);
+
+ return NULL;
+}
+
+/* Some devices are known to send Neigbor Solicitation messages and
+ * require Neigbor Advertisement replies. The IPv6 core will not
+ * respond since IFF_NOARP is set, so we must handle them ourselves.
+ */
+static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci)
+{
+ struct ipv6hdr *iph = (void *)buf;
+ struct nd_msg *msg = (void *)(iph + 1);
+ struct net_device *netdev;
+ struct inet6_dev *in6_dev;
+ bool is_router;
+
+ /* we'll only respond to requests from unicast addresses to
+ * our solicited node addresses.
+ */
+ if (!ipv6_addr_is_solict_mult(&iph->daddr) ||
+ !(ipv6_addr_type(&iph->saddr) & IPV6_ADDR_UNICAST))
+ return;
+
+ /* need to send the NA on the VLAN dev, if any */
+ rcu_read_lock();
+ if (tci) {
+ netdev = __vlan_find_dev_deep_rcu(dev->net, htons(ETH_P_8021Q),
+ tci);
+ if (!netdev) {
+ rcu_read_unlock();
+ return;
+ }
+ } else {
+ netdev = dev->net;
+ }
+ dev_hold(netdev);
+ rcu_read_unlock();
+
+ in6_dev = in6_dev_get(netdev);
+ if (!in6_dev)
+ goto out;
+ is_router = !!in6_dev->cnf.forwarding;
+ in6_dev_put(in6_dev);
+
+ /* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */
+ ipv6_stub->ndisc_send_na(netdev, &iph->saddr, &msg->target,
+ is_router /* router */,
+ true /* solicited */,
+ false /* override */,
+ true /* inc_opt */);
+out:
+ dev_put(netdev);
+}
+
+static bool is_neigh_solicit(u8 *buf, size_t len)
+{
+ struct ipv6hdr *iph = (void *)buf;
+ struct nd_msg *msg = (void *)(iph + 1);
+
+ return (len >= sizeof(struct ipv6hdr) + sizeof(struct nd_msg) &&
+ iph->nexthdr == IPPROTO_ICMPV6 &&
+ msg->icmph.icmp6_code == 0 &&
+ msg->icmph.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION);
+}
+
+
+static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_t len, u16 tci)
+{
+ __be16 proto = htons(ETH_P_802_3);
+ struct sk_buff *skb = NULL;
+
+ if (tci < 256 || tci == MBIM_IPS0_VID) { /* IPS session? */
+ if (len < sizeof(struct iphdr))
+ goto err;
+
+ switch (*buf & 0xf0) {
+ case 0x40:
+ proto = htons(ETH_P_IP);
+ break;
+ case 0x60:
+ if (is_neigh_solicit(buf, len))
+ do_neigh_solicit(dev, buf, tci);
+ proto = htons(ETH_P_IPV6);
+ break;
+ default:
+ goto err;
+ }
+ }
+
+ skb = netdev_alloc_skb_ip_align(dev->net, len + ETH_HLEN);
+ if (!skb)
+ goto err;
+
+ /* add an ethernet header */
+ skb_put(skb, ETH_HLEN);
+ skb_reset_mac_header(skb);
+ eth_hdr(skb)->h_proto = proto;
+ eth_zero_addr(eth_hdr(skb)->h_source);
+ memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
+
+ /* add datagram */
+ memcpy(skb_put(skb, len), buf, len);
+
+ /* map MBIM session to VLAN */
+ if (tci)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tci);
+err:
+ return skb;
+}
+
+static int cdc_mbim_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in)
+{
+ struct sk_buff *skb;
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ struct cdc_ncm_ctx *ctx = info->ctx;
+ int len;
+ int nframes;
+ int x;
+ int offset;
+ struct usb_cdc_ncm_ndp16 *ndp16;
+ struct usb_cdc_ncm_dpe16 *dpe16;
+ int ndpoffset;
+ int loopcount = 50; /* arbitrary max preventing infinite loop */
+ u32 payload = 0;
+ u8 *c;
+ u16 tci;
+
+ ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in);
+ if (ndpoffset < 0)
+ goto error;
+
+next_ndp:
+ nframes = cdc_ncm_rx_verify_ndp16(skb_in, ndpoffset);
+ if (nframes < 0)
+ goto error;
+
+ ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
+
+ switch (ndp16->dwSignature & cpu_to_le32(0x00ffffff)) {
+ case cpu_to_le32(USB_CDC_MBIM_NDP16_IPS_SIGN):
+ c = (u8 *)&ndp16->dwSignature;
+ tci = c[3];
+ /* tag IPS<0> packets too if MBIM_IPS0_VID exists */
+ if (!tci && info->flags & FLAG_IPS0_VLAN)
+ tci = MBIM_IPS0_VID;
+ break;
+ case cpu_to_le32(USB_CDC_MBIM_NDP16_DSS_SIGN):
+ c = (u8 *)&ndp16->dwSignature;
+ tci = c[3] + 256;
+ break;
+ default:
+ netif_dbg(dev, rx_err, dev->net,
+ "unsupported NDP signature <0x%08x>\n",
+ le32_to_cpu(ndp16->dwSignature));
+ goto err_ndp;
+
+ }
+
+ dpe16 = ndp16->dpe16;
+ for (x = 0; x < nframes; x++, dpe16++) {
+ offset = le16_to_cpu(dpe16->wDatagramIndex);
+ len = le16_to_cpu(dpe16->wDatagramLength);
+
+ /*
+ * CDC NCM ch. 3.7
+ * All entries after first NULL entry are to be ignored
+ */
+ if ((offset == 0) || (len == 0)) {
+ if (!x)
+ goto err_ndp; /* empty NTB */
+ break;
+ }
+
+ /* sanity checking */
+ if (((offset + len) > skb_in->len) || (len > ctx->rx_max)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n",
+ x, offset, len, skb_in);
+ if (!x)
+ goto err_ndp;
+ break;
+ } else {
+ skb = cdc_mbim_process_dgram(dev, skb_in->data + offset, len, tci);
+ if (!skb)
+ goto error;
+ usbnet_skb_return(dev, skb);
+ payload += len; /* count payload bytes in this NTB */
+ }
+ }
+err_ndp:
+ /* are there more NDPs to process? */
+ ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex);
+ if (ndpoffset && loopcount--)
+ goto next_ndp;
+
+ /* update stats */
+ ctx->rx_overhead += skb_in->len - payload;
+ ctx->rx_ntbs++;
+
+ return 1;
+error:
+ return 0;
+}
+
+static int cdc_mbim_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ int ret = -ENODEV;
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ struct cdc_ncm_ctx *ctx = info->ctx;
+
+ if (!ctx)
+ goto error;
+
+ /*
+ * Both usbnet_suspend() and subdriver->suspend() MUST return 0
+ * in system sleep context, otherwise, the resume callback has
+ * to recover device from previous suspend failure.
+ */
+ ret = usbnet_suspend(intf, message);
+ if (ret < 0)
+ goto error;
+
+ if (intf == ctx->control && info->subdriver && info->subdriver->suspend)
+ ret = info->subdriver->suspend(intf, message);
+ if (ret < 0)
+ usbnet_resume(intf);
+
+error:
+ return ret;
+}
+
+static int cdc_mbim_resume(struct usb_interface *intf)
+{
+ int ret = 0;
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct cdc_mbim_state *info = (void *)&dev->data;
+ struct cdc_ncm_ctx *ctx = info->ctx;
+ bool callsub = (intf == ctx->control && info->subdriver && info->subdriver->resume);
+
+ if (callsub)
+ ret = info->subdriver->resume(intf);
+ if (ret < 0)
+ goto err;
+ ret = usbnet_resume(intf);
+ if (ret < 0 && callsub)
+ info->subdriver->suspend(intf, PMSG_SUSPEND);
+err:
+ return ret;
+}
+
+static const struct driver_info cdc_mbim_info = {
+ .description = "CDC MBIM",
+ .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
+ .bind = cdc_mbim_bind,
+ .unbind = cdc_mbim_unbind,
+ .manage_power = cdc_mbim_manage_power,
+ .rx_fixup = cdc_mbim_rx_fixup,
+ .tx_fixup = cdc_mbim_tx_fixup,
+};
+
+/* MBIM and NCM devices should not need a ZLP after NTBs with
+ * dwNtbOutMaxSize length. Nevertheless, a number of devices from
+ * different vendor IDs will fail unless we send ZLPs, forcing us
+ * to make this the default.
+ *
+ * This default may cause a performance penalty for spec conforming
+ * devices wanting to take advantage of optimizations possible without
+ * ZLPs. A whitelist is added in an attempt to avoid this for devices
+ * known to conform to the MBIM specification.
+ *
+ * All known devices supporting NCM compatibility mode are also
+ * conforming to the NCM and MBIM specifications. For this reason, the
+ * NCM subclass entry is also in the ZLP whitelist.
+ */
+static const struct driver_info cdc_mbim_info_zlp = {
+ .description = "CDC MBIM",
+ .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP,
+ .bind = cdc_mbim_bind,
+ .unbind = cdc_mbim_unbind,
+ .manage_power = cdc_mbim_manage_power,
+ .rx_fixup = cdc_mbim_rx_fixup,
+ .tx_fixup = cdc_mbim_tx_fixup,
+};
+
+/* The spefication explicitly allows NDPs to be placed anywhere in the
+ * frame, but some devices fail unless the NDP is placed after the IP
+ * packets. Using the CDC_NCM_FLAG_NDP_TO_END flags to force this
+ * behaviour.
+ *
+ * Note: The current implementation of this feature restricts each NTB
+ * to a single NDP, implying that multiplexed sessions cannot share an
+ * NTB. This might affect performace for multiplexed sessions.
+ */
+static const struct driver_info cdc_mbim_info_ndp_to_end = {
+ .description = "CDC MBIM",
+ .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
+ .bind = cdc_mbim_bind,
+ .unbind = cdc_mbim_unbind,
+ .manage_power = cdc_mbim_manage_power,
+ .rx_fixup = cdc_mbim_rx_fixup,
+ .tx_fixup = cdc_mbim_tx_fixup,
+ .data = CDC_NCM_FLAG_NDP_TO_END,
+};
+
+static const struct usb_device_id mbim_devs[] = {
+ /* This duplicate NCM entry is intentional. MBIM devices can
+ * be disguised as NCM by default, and this is necessary to
+ * allow us to bind the correct driver_info to such devices.
+ *
+ * bind() will sort out this for us, selecting the correct
+ * entry and reject the other
+ */
+ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info,
+ },
+ /* ZLP conformance whitelist: All Ericsson MBIM devices */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info,
+ },
+
+ /* Some Huawei devices, ME906s-158 (12d1:15c1) and E3372
+ * (12d1:157d), are known to fail unless the NDP is placed
+ * after the IP packets. Applying the quirk to all Huawei
+ * devices is broader than necessary, but harmless.
+ */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end,
+ },
+ /* default entry */
+ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info_zlp,
+ },
+ {
+ },
+};
+MODULE_DEVICE_TABLE(usb, mbim_devs);
+
+static struct usb_driver cdc_mbim_driver = {
+ .name = "cdc_mbim",
+ .id_table = mbim_devs,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = cdc_mbim_suspend,
+ .resume = cdc_mbim_resume,
+ .reset_resume = cdc_mbim_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(cdc_mbim_driver);
+
+MODULE_AUTHOR("Greg Suarez <gsuarez@smithmicro.com>");
+MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
+MODULE_DESCRIPTION("USB CDC MBIM host driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
new file mode 100644
index 0000000..1228d0d
--- /dev/null
+++ b/drivers/net/usb/cdc_ncm.c
@@ -0,0 +1,1700 @@
+/*
+ * cdc_ncm.c
+ *
+ * Copyright (C) ST-Ericsson 2010-2012
+ * Contact: Alexey Orishko <alexey.orishko@stericsson.com>
+ * Original author: Hans Petter Selasky <hans.petter.selasky@stericsson.com>
+ *
+ * USB Host Driver for Network Control Model (NCM)
+ * http://www.usb.org/developers/docs/devclass_docs/NCM10_012011.zip
+ *
+ * The NCM encoding, decoding and initialization logic
+ * derives from FreeBSD 8.x. if_cdce.c and if_cdcereg.h
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose this file to be licensed under the terms
+ * of the GNU General Public License (GPL) Version 2 or the 2-clause
+ * BSD license listed below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ctype.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+#include <linux/usb.h>
+#include <linux/hrtimer.h>
+#include <linux/atomic.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/cdc_ncm.h>
+
+#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM)
+static bool prefer_mbim = true;
+#else
+static bool prefer_mbim;
+#endif
+module_param(prefer_mbim, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(prefer_mbim, "Prefer MBIM setting on dual NCM/MBIM functions");
+
+static void cdc_ncm_txpath_bh(unsigned long param);
+static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx);
+static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer);
+static struct usb_driver cdc_ncm_driver;
+
+struct cdc_ncm_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#define CDC_NCM_STAT(str, m) { \
+ .stat_string = str, \
+ .sizeof_stat = sizeof(((struct cdc_ncm_ctx *)0)->m), \
+ .stat_offset = offsetof(struct cdc_ncm_ctx, m) }
+#define CDC_NCM_SIMPLE_STAT(m) CDC_NCM_STAT(__stringify(m), m)
+
+static const struct cdc_ncm_stats cdc_ncm_gstrings_stats[] = {
+ CDC_NCM_SIMPLE_STAT(tx_reason_ntb_full),
+ CDC_NCM_SIMPLE_STAT(tx_reason_ndp_full),
+ CDC_NCM_SIMPLE_STAT(tx_reason_timeout),
+ CDC_NCM_SIMPLE_STAT(tx_reason_max_datagram),
+ CDC_NCM_SIMPLE_STAT(tx_overhead),
+ CDC_NCM_SIMPLE_STAT(tx_ntbs),
+ CDC_NCM_SIMPLE_STAT(rx_overhead),
+ CDC_NCM_SIMPLE_STAT(rx_ntbs),
+};
+
+static int cdc_ncm_get_sset_count(struct net_device __always_unused *netdev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(cdc_ncm_gstrings_stats);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void cdc_ncm_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ int i;
+ char *p = NULL;
+
+ for (i = 0; i < ARRAY_SIZE(cdc_ncm_gstrings_stats); i++) {
+ p = (char *)ctx + cdc_ncm_gstrings_stats[i].stat_offset;
+ data[i] = (cdc_ncm_gstrings_stats[i].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+ }
+}
+
+static void cdc_ncm_get_strings(struct net_device __always_unused *netdev, u32 stringset, u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(cdc_ncm_gstrings_stats); i++) {
+ memcpy(p, cdc_ncm_gstrings_stats[i].stat_string, ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ }
+}
+
+static void cdc_ncm_update_rxtx_max(struct usbnet *dev, u32 new_rx, u32 new_tx);
+
+static const struct ethtool_ops cdc_ncm_ethtool_ops = {
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .get_link = usbnet_get_link,
+ .nway_reset = usbnet_nway_reset,
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_ts_info = ethtool_op_get_ts_info,
+ .get_sset_count = cdc_ncm_get_sset_count,
+ .get_strings = cdc_ncm_get_strings,
+ .get_ethtool_stats = cdc_ncm_get_ethtool_stats,
+};
+
+static u32 cdc_ncm_check_rx_max(struct usbnet *dev, u32 new_rx)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u32 val, max, min;
+
+ /* clamp new_rx to sane values */
+ min = USB_CDC_NCM_NTB_MIN_IN_SIZE;
+ max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_RX, le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize));
+
+ /* dwNtbInMaxSize spec violation? Use MIN size for both limits */
+ if (max < min) {
+ dev_warn(&dev->intf->dev, "dwNtbInMaxSize=%u is too small. Using %u\n",
+ le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize), min);
+ max = min;
+ }
+
+ val = clamp_t(u32, new_rx, min, max);
+ if (val != new_rx)
+ dev_dbg(&dev->intf->dev, "rx_max must be in the [%u, %u] range\n", min, max);
+
+ return val;
+}
+
+static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u32 val, max, min;
+
+ /* clamp new_tx to sane values */
+ min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth16);
+ max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize));
+
+ /* some devices set dwNtbOutMaxSize too low for the above default */
+ min = min(min, max);
+
+ val = clamp_t(u32, new_tx, min, max);
+ if (val != new_tx)
+ dev_dbg(&dev->intf->dev, "tx_max must be in the [%u, %u] range\n", min, max);
+
+ return val;
+}
+
+static ssize_t cdc_ncm_show_min_tx_pkt(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ return sprintf(buf, "%u\n", ctx->min_tx_pkt);
+}
+
+static ssize_t cdc_ncm_show_rx_max(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ return sprintf(buf, "%u\n", ctx->rx_max);
+}
+
+static ssize_t cdc_ncm_show_tx_max(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ return sprintf(buf, "%u\n", ctx->tx_max);
+}
+
+static ssize_t cdc_ncm_show_tx_timer_usecs(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ return sprintf(buf, "%u\n", ctx->timer_interval / (u32)NSEC_PER_USEC);
+}
+
+static ssize_t cdc_ncm_store_min_tx_pkt(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ unsigned long val;
+
+ /* no need to restrict values - anything from 0 to infinity is OK */
+ if (kstrtoul(buf, 0, &val))
+ return -EINVAL;
+
+ ctx->min_tx_pkt = val;
+ return len;
+}
+
+static ssize_t cdc_ncm_store_rx_max(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ unsigned long val;
+
+ if (kstrtoul(buf, 0, &val) || cdc_ncm_check_rx_max(dev, val) != val)
+ return -EINVAL;
+
+ cdc_ncm_update_rxtx_max(dev, val, ctx->tx_max);
+ return len;
+}
+
+static ssize_t cdc_ncm_store_tx_max(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ unsigned long val;
+
+ if (kstrtoul(buf, 0, &val) || cdc_ncm_check_tx_max(dev, val) != val)
+ return -EINVAL;
+
+ cdc_ncm_update_rxtx_max(dev, ctx->rx_max, val);
+ return len;
+}
+
+static ssize_t cdc_ncm_store_tx_timer_usecs(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(d));
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ ssize_t ret;
+ unsigned long val;
+
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+ if (val && (val < CDC_NCM_TIMER_INTERVAL_MIN || val > CDC_NCM_TIMER_INTERVAL_MAX))
+ return -EINVAL;
+
+ spin_lock_bh(&ctx->mtx);
+ ctx->timer_interval = val * NSEC_PER_USEC;
+ if (!ctx->timer_interval)
+ ctx->tx_timer_pending = 0;
+ spin_unlock_bh(&ctx->mtx);
+ return len;
+}
+
+static DEVICE_ATTR(min_tx_pkt, S_IRUGO | S_IWUSR, cdc_ncm_show_min_tx_pkt, cdc_ncm_store_min_tx_pkt);
+static DEVICE_ATTR(rx_max, S_IRUGO | S_IWUSR, cdc_ncm_show_rx_max, cdc_ncm_store_rx_max);
+static DEVICE_ATTR(tx_max, S_IRUGO | S_IWUSR, cdc_ncm_show_tx_max, cdc_ncm_store_tx_max);
+static DEVICE_ATTR(tx_timer_usecs, S_IRUGO | S_IWUSR, cdc_ncm_show_tx_timer_usecs, cdc_ncm_store_tx_timer_usecs);
+
+#define NCM_PARM_ATTR(name, format, tocpu) \
+static ssize_t cdc_ncm_show_##name(struct device *d, struct device_attribute *attr, char *buf) \
+{ \
+ struct usbnet *dev = netdev_priv(to_net_dev(d)); \
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; \
+ return sprintf(buf, format "\n", tocpu(ctx->ncm_parm.name)); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, cdc_ncm_show_##name, NULL)
+
+NCM_PARM_ATTR(bmNtbFormatsSupported, "0x%04x", le16_to_cpu);
+NCM_PARM_ATTR(dwNtbInMaxSize, "%u", le32_to_cpu);
+NCM_PARM_ATTR(wNdpInDivisor, "%u", le16_to_cpu);
+NCM_PARM_ATTR(wNdpInPayloadRemainder, "%u", le16_to_cpu);
+NCM_PARM_ATTR(wNdpInAlignment, "%u", le16_to_cpu);
+NCM_PARM_ATTR(dwNtbOutMaxSize, "%u", le32_to_cpu);
+NCM_PARM_ATTR(wNdpOutDivisor, "%u", le16_to_cpu);
+NCM_PARM_ATTR(wNdpOutPayloadRemainder, "%u", le16_to_cpu);
+NCM_PARM_ATTR(wNdpOutAlignment, "%u", le16_to_cpu);
+NCM_PARM_ATTR(wNtbOutMaxDatagrams, "%u", le16_to_cpu);
+
+static struct attribute *cdc_ncm_sysfs_attrs[] = {
+ &dev_attr_min_tx_pkt.attr,
+ &dev_attr_rx_max.attr,
+ &dev_attr_tx_max.attr,
+ &dev_attr_tx_timer_usecs.attr,
+ &dev_attr_bmNtbFormatsSupported.attr,
+ &dev_attr_dwNtbInMaxSize.attr,
+ &dev_attr_wNdpInDivisor.attr,
+ &dev_attr_wNdpInPayloadRemainder.attr,
+ &dev_attr_wNdpInAlignment.attr,
+ &dev_attr_dwNtbOutMaxSize.attr,
+ &dev_attr_wNdpOutDivisor.attr,
+ &dev_attr_wNdpOutPayloadRemainder.attr,
+ &dev_attr_wNdpOutAlignment.attr,
+ &dev_attr_wNtbOutMaxDatagrams.attr,
+ NULL,
+};
+
+static struct attribute_group cdc_ncm_sysfs_attr_group = {
+ .name = "cdc_ncm",
+ .attrs = cdc_ncm_sysfs_attrs,
+};
+
+/* handle rx_max and tx_max changes */
+static void cdc_ncm_update_rxtx_max(struct usbnet *dev, u32 new_rx, u32 new_tx)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;
+ u32 val;
+
+ val = cdc_ncm_check_rx_max(dev, new_rx);
+
+ /* inform device about NTB input size changes */
+ if (val != ctx->rx_max) {
+ __le32 dwNtbInMaxSize = cpu_to_le32(val);
+
+ dev_info(&dev->intf->dev, "setting rx_max = %u\n", val);
+
+ /* tell device to use new size */
+ if (usbnet_write_cmd(dev, USB_CDC_SET_NTB_INPUT_SIZE,
+ USB_TYPE_CLASS | USB_DIR_OUT
+ | USB_RECIP_INTERFACE,
+ 0, iface_no, &dwNtbInMaxSize, 4) < 0)
+ dev_dbg(&dev->intf->dev, "Setting NTB Input Size failed\n");
+ else
+ ctx->rx_max = val;
+ }
+
+ /* usbnet use these values for sizing rx queues */
+ if (dev->rx_urb_size != ctx->rx_max) {
+ dev->rx_urb_size = ctx->rx_max;
+ if (netif_running(dev->net))
+ usbnet_unlink_rx_urbs(dev);
+ }
+
+ val = cdc_ncm_check_tx_max(dev, new_tx);
+ if (val != ctx->tx_max)
+ dev_info(&dev->intf->dev, "setting tx_max = %u\n", val);
+
+ /* Adding a pad byte here if necessary simplifies the handling
+ * in cdc_ncm_fill_tx_frame, making tx_max always represent
+ * the real skb max size.
+ *
+ * We cannot use dev->maxpacket here because this is called from
+ * .bind which is called before usbnet sets up dev->maxpacket
+ */
+ if (val != le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) &&
+ val % usb_maxpacket(dev->udev, dev->out, 1) == 0)
+ val++;
+
+ /* we might need to flush any pending tx buffers if running */
+ if (netif_running(dev->net) && val > ctx->tx_max) {
+ netif_tx_lock_bh(dev->net);
+ usbnet_start_xmit(NULL, dev->net);
+ /* make sure tx_curr_skb is reallocated if it was empty */
+ if (ctx->tx_curr_skb) {
+ dev_kfree_skb_any(ctx->tx_curr_skb);
+ ctx->tx_curr_skb = NULL;
+ }
+ ctx->tx_max = val;
+ netif_tx_unlock_bh(dev->net);
+ } else {
+ ctx->tx_max = val;
+ }
+
+ dev->hard_mtu = ctx->tx_max;
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ /* never pad more than 3 full USB packets per transfer */
+ ctx->min_tx_pkt = clamp_t(u16, ctx->tx_max - 3 * usb_maxpacket(dev->udev, dev->out, 1),
+ CDC_NCM_MIN_TX_PKT, ctx->tx_max);
+}
+
+/* helpers for NCM and MBIM differences */
+static u8 cdc_ncm_flags(struct usbnet *dev)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting) && ctx->mbim_desc)
+ return ctx->mbim_desc->bmNetworkCapabilities;
+ if (ctx->func_desc)
+ return ctx->func_desc->bmNetworkCapabilities;
+ return 0;
+}
+
+static int cdc_ncm_eth_hlen(struct usbnet *dev)
+{
+ if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting))
+ return 0;
+ return ETH_HLEN;
+}
+
+static u32 cdc_ncm_min_dgram_size(struct usbnet *dev)
+{
+ if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting))
+ return CDC_MBIM_MIN_DATAGRAM_SIZE;
+ return CDC_NCM_MIN_DATAGRAM_SIZE;
+}
+
+static u32 cdc_ncm_max_dgram_size(struct usbnet *dev)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ if (cdc_ncm_comm_intf_is_mbim(dev->intf->cur_altsetting) && ctx->mbim_desc)
+ return le16_to_cpu(ctx->mbim_desc->wMaxSegmentSize);
+ if (ctx->ether_desc)
+ return le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);
+ return CDC_NCM_MAX_DATAGRAM_SIZE;
+}
+
+/* initial one-time device setup. MUST be called with the data interface
+ * in altsetting 0
+ */
+static int cdc_ncm_init(struct usbnet *dev)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;
+ int err;
+
+ err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_PARAMETERS,
+ USB_TYPE_CLASS | USB_DIR_IN
+ |USB_RECIP_INTERFACE,
+ 0, iface_no, &ctx->ncm_parm,
+ sizeof(ctx->ncm_parm));
+ if (err < 0) {
+ dev_err(&dev->intf->dev, "failed GET_NTB_PARAMETERS\n");
+ return err; /* GET_NTB_PARAMETERS is required */
+ }
+
+ /* set CRC Mode */
+ if (cdc_ncm_flags(dev) & USB_CDC_NCM_NCAP_CRC_MODE) {
+ dev_dbg(&dev->intf->dev, "Setting CRC mode off\n");
+ err = usbnet_write_cmd(dev, USB_CDC_SET_CRC_MODE,
+ USB_TYPE_CLASS | USB_DIR_OUT
+ | USB_RECIP_INTERFACE,
+ USB_CDC_NCM_CRC_NOT_APPENDED,
+ iface_no, NULL, 0);
+ if (err < 0)
+ dev_err(&dev->intf->dev, "SET_CRC_MODE failed\n");
+ }
+
+ /* set NTB format, if both formats are supported.
+ *
+ * "The host shall only send this command while the NCM Data
+ * Interface is in alternate setting 0."
+ */
+ if (le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported) &
+ USB_CDC_NCM_NTB32_SUPPORTED) {
+ dev_dbg(&dev->intf->dev, "Setting NTB format to 16-bit\n");
+ err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT,
+ USB_TYPE_CLASS | USB_DIR_OUT
+ | USB_RECIP_INTERFACE,
+ USB_CDC_NCM_NTB16_FORMAT,
+ iface_no, NULL, 0);
+ if (err < 0)
+ dev_err(&dev->intf->dev, "SET_NTB_FORMAT failed\n");
+ }
+
+ /* set initial device values */
+ ctx->rx_max = le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize);
+ ctx->tx_max = le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize);
+ ctx->tx_remainder = le16_to_cpu(ctx->ncm_parm.wNdpOutPayloadRemainder);
+ ctx->tx_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutDivisor);
+ ctx->tx_ndp_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutAlignment);
+ /* devices prior to NCM Errata shall set this field to zero */
+ ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams);
+
+ dev_dbg(&dev->intf->dev,
+ "dwNtbInMaxSize=%u dwNtbOutMaxSize=%u wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n",
+ ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus,
+ ctx->tx_ndp_modulus, ctx->tx_max_datagrams, cdc_ncm_flags(dev));
+
+ /* max count of tx datagrams */
+ if ((ctx->tx_max_datagrams == 0) ||
+ (ctx->tx_max_datagrams > CDC_NCM_DPT_DATAGRAMS_MAX))
+ ctx->tx_max_datagrams = CDC_NCM_DPT_DATAGRAMS_MAX;
+
+ /* set up maximum NDP size */
+ ctx->max_ndp_size = sizeof(struct usb_cdc_ncm_ndp16) + (ctx->tx_max_datagrams + 1) * sizeof(struct usb_cdc_ncm_dpe16);
+
+ /* initial coalescing timer interval */
+ ctx->timer_interval = CDC_NCM_TIMER_INTERVAL_USEC * NSEC_PER_USEC;
+
+ return 0;
+}
+
+/* set a new max datagram size */
+static void cdc_ncm_set_dgram_size(struct usbnet *dev, int new_size)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u8 iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;
+ __le16 max_datagram_size;
+ u16 mbim_mtu;
+ int err;
+
+ /* set default based on descriptors */
+ ctx->max_datagram_size = clamp_t(u32, new_size,
+ cdc_ncm_min_dgram_size(dev),
+ CDC_NCM_MAX_DATAGRAM_SIZE);
+
+ /* inform the device about the selected Max Datagram Size? */
+ if (!(cdc_ncm_flags(dev) & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE))
+ goto out;
+
+ /* read current mtu value from device */
+ err = usbnet_read_cmd(dev, USB_CDC_GET_MAX_DATAGRAM_SIZE,
+ USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
+ 0, iface_no, &max_datagram_size, 2);
+ if (err < 0) {
+ dev_dbg(&dev->intf->dev, "GET_MAX_DATAGRAM_SIZE failed\n");
+ goto out;
+ }
+
+ if (le16_to_cpu(max_datagram_size) == ctx->max_datagram_size)
+ goto out;
+
+ max_datagram_size = cpu_to_le16(ctx->max_datagram_size);
+ err = usbnet_write_cmd(dev, USB_CDC_SET_MAX_DATAGRAM_SIZE,
+ USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE,
+ 0, iface_no, &max_datagram_size, 2);
+ if (err < 0)
+ dev_dbg(&dev->intf->dev, "SET_MAX_DATAGRAM_SIZE failed\n");
+
+out:
+ /* set MTU to max supported by the device if necessary */
+ dev->net->mtu = min_t(int, dev->net->mtu, ctx->max_datagram_size - cdc_ncm_eth_hlen(dev));
+
+ /* do not exceed operater preferred MTU */
+ if (ctx->mbim_extended_desc) {
+ mbim_mtu = le16_to_cpu(ctx->mbim_extended_desc->wMTU);
+ if (mbim_mtu != 0 && mbim_mtu < dev->net->mtu)
+ dev->net->mtu = mbim_mtu;
+ }
+}
+
+static void cdc_ncm_fix_modulus(struct usbnet *dev)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u32 val;
+
+ /*
+ * verify that the structure alignment is:
+ * - power of two
+ * - not greater than the maximum transmit length
+ * - not less than four bytes
+ */
+ val = ctx->tx_ndp_modulus;
+
+ if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) ||
+ (val != ((-val) & val)) || (val >= ctx->tx_max)) {
+ dev_dbg(&dev->intf->dev, "Using default alignment: 4 bytes\n");
+ ctx->tx_ndp_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;
+ }
+
+ /*
+ * verify that the payload alignment is:
+ * - power of two
+ * - not greater than the maximum transmit length
+ * - not less than four bytes
+ */
+ val = ctx->tx_modulus;
+
+ if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) ||
+ (val != ((-val) & val)) || (val >= ctx->tx_max)) {
+ dev_dbg(&dev->intf->dev, "Using default transmit modulus: 4 bytes\n");
+ ctx->tx_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;
+ }
+
+ /* verify the payload remainder */
+ if (ctx->tx_remainder >= ctx->tx_modulus) {
+ dev_dbg(&dev->intf->dev, "Using default transmit remainder: 0 bytes\n");
+ ctx->tx_remainder = 0;
+ }
+
+ /* adjust TX-remainder according to NCM specification. */
+ ctx->tx_remainder = ((ctx->tx_remainder - cdc_ncm_eth_hlen(dev)) &
+ (ctx->tx_modulus - 1));
+}
+
+static int cdc_ncm_setup(struct usbnet *dev)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ u32 def_rx, def_tx;
+
+ /* be conservative when selecting intial buffer size to
+ * increase the number of hosts this will work for
+ */
+ def_rx = min_t(u32, CDC_NCM_NTB_DEF_SIZE_RX,
+ le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize));
+ def_tx = min_t(u32, CDC_NCM_NTB_DEF_SIZE_TX,
+ le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize));
+
+ /* clamp rx_max and tx_max and inform device */
+ cdc_ncm_update_rxtx_max(dev, def_rx, def_tx);
+
+ /* sanitize the modulus and remainder values */
+ cdc_ncm_fix_modulus(dev);
+
+ /* set max datagram size */
+ cdc_ncm_set_dgram_size(dev, cdc_ncm_max_dgram_size(dev));
+ return 0;
+}
+
+static void
+cdc_ncm_find_endpoints(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct usb_host_endpoint *e, *in = NULL, *out = NULL;
+ u8 ep;
+
+ for (ep = 0; ep < intf->cur_altsetting->desc.bNumEndpoints; ep++) {
+
+ e = intf->cur_altsetting->endpoint + ep;
+ switch (e->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ case USB_ENDPOINT_XFER_INT:
+ if (usb_endpoint_dir_in(&e->desc)) {
+ if (!dev->status)
+ dev->status = e;
+ }
+ break;
+
+ case USB_ENDPOINT_XFER_BULK:
+ if (usb_endpoint_dir_in(&e->desc)) {
+ if (!in)
+ in = e;
+ } else {
+ if (!out)
+ out = e;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ if (in && !dev->in)
+ dev->in = usb_rcvbulkpipe(dev->udev,
+ in->desc.bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK);
+ if (out && !dev->out)
+ dev->out = usb_sndbulkpipe(dev->udev,
+ out->desc.bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK);
+}
+
+static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
+{
+ if (ctx == NULL)
+ return;
+
+ if (ctx->tx_rem_skb != NULL) {
+ dev_kfree_skb_any(ctx->tx_rem_skb);
+ ctx->tx_rem_skb = NULL;
+ }
+
+ if (ctx->tx_curr_skb != NULL) {
+ dev_kfree_skb_any(ctx->tx_curr_skb);
+ ctx->tx_curr_skb = NULL;
+ }
+
+ kfree(ctx->delayed_ndp16);
+
+ kfree(ctx);
+}
+
+/* we need to override the usbnet change_mtu ndo for two reasons:
+ * - respect the negotiated maximum datagram size
+ * - avoid unwanted changes to rx and tx buffers
+ */
+int cdc_ncm_change_mtu(struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ int maxmtu = ctx->max_datagram_size - cdc_ncm_eth_hlen(dev);
+
+ if (new_mtu <= 0 || new_mtu > maxmtu)
+ return -EINVAL;
+ net->mtu = new_mtu;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_change_mtu);
+
+static const struct net_device_ops cdc_ncm_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = cdc_ncm_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting, int drvflags)
+{
+ struct cdc_ncm_ctx *ctx;
+ struct usb_driver *driver;
+ u8 *buf;
+ int len;
+ int temp;
+ int err;
+ u8 iface_no;
+ struct usb_cdc_parsed_header hdr;
+ u16 curr_ntb_format;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
+ ctx->bh.data = (unsigned long)dev;
+ ctx->bh.func = cdc_ncm_txpath_bh;
+ atomic_set(&ctx->stop, 0);
+ spin_lock_init(&ctx->mtx);
+
+ /* store ctx pointer in device data field */
+ dev->data[0] = (unsigned long)ctx;
+
+ /* only the control interface can be successfully probed */
+ ctx->control = intf;
+
+ /* get some pointers */
+ driver = driver_of(intf);
+ buf = intf->cur_altsetting->extra;
+ len = intf->cur_altsetting->extralen;
+
+ /* parse through descriptors associated with control interface */
+ cdc_parse_cdc_header(&hdr, intf, buf, len);
+
+ if (hdr.usb_cdc_union_desc)
+ ctx->data = usb_ifnum_to_if(dev->udev,
+ hdr.usb_cdc_union_desc->bSlaveInterface0);
+ ctx->ether_desc = hdr.usb_cdc_ether_desc;
+ ctx->func_desc = hdr.usb_cdc_ncm_desc;
+ ctx->mbim_desc = hdr.usb_cdc_mbim_desc;
+ ctx->mbim_extended_desc = hdr.usb_cdc_mbim_extended_desc;
+
+ /* some buggy devices have an IAD but no CDC Union */
+ if (!hdr.usb_cdc_union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
+ ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
+ dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
+ }
+
+ /* check if we got everything */
+ if (!ctx->data) {
+ dev_dbg(&intf->dev, "CDC Union missing and no IAD found\n");
+ goto error;
+ }
+ if (cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) {
+ if (!ctx->mbim_desc) {
+ dev_dbg(&intf->dev, "MBIM functional descriptor missing\n");
+ goto error;
+ }
+ } else {
+ if (!ctx->ether_desc || !ctx->func_desc) {
+ dev_dbg(&intf->dev, "NCM or ECM functional descriptors missing\n");
+ goto error;
+ }
+ }
+
+ /* claim data interface, if different from control */
+ if (ctx->data != ctx->control) {
+ temp = usb_driver_claim_interface(driver, ctx->data, dev);
+ if (temp) {
+ dev_dbg(&intf->dev, "failed to claim data intf\n");
+ goto error;
+ }
+ }
+
+ iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
+
+ /* Reset data interface. Some devices will not reset properly
+ * unless they are configured first. Toggle the altsetting to
+ * force a reset
+ */
+ usb_set_interface(dev->udev, iface_no, data_altsetting);
+ temp = usb_set_interface(dev->udev, iface_no, 0);
+ if (temp) {
+ dev_dbg(&intf->dev, "set interface failed\n");
+ goto error2;
+ }
+
+ /* initialize basic device settings */
+ if (cdc_ncm_init(dev))
+ goto error2;
+
+ /* Some firmwares need a pause here or they will silently fail
+ * to set up the interface properly. This value was decided
+ * empirically on a Sierra Wireless MC7455 running 02.08.02.00
+ * firmware.
+ */
+ usleep_range(10000, 20000);
+
+ /* configure data interface */
+ temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
+ if (temp) {
+ dev_dbg(&intf->dev, "set interface failed\n");
+ goto error2;
+ }
+
+ /*
+ * Some Huawei devices have been observed to come out of reset in NDP32 mode.
+ * Let's check if this is the case, and set the device to NDP16 mode again if
+ * needed.
+ */
+ if (ctx->drvflags & CDC_NCM_FLAG_RESET_NTB16) {
+ err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_FORMAT,
+ USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
+ 0, iface_no, &curr_ntb_format, 2);
+ if (err < 0) {
+ goto error2;
+ }
+
+ if (curr_ntb_format == USB_CDC_NCM_NTB32_FORMAT) {
+ dev_info(&intf->dev, "resetting NTB format to 16-bit");
+ err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT,
+ USB_TYPE_CLASS | USB_DIR_OUT
+ | USB_RECIP_INTERFACE,
+ USB_CDC_NCM_NTB16_FORMAT,
+ iface_no, NULL, 0);
+
+ if (err < 0)
+ goto error2;
+ }
+ }
+
+ cdc_ncm_find_endpoints(dev, ctx->data);
+ cdc_ncm_find_endpoints(dev, ctx->control);
+ if (!dev->in || !dev->out || !dev->status) {
+ dev_dbg(&intf->dev, "failed to collect endpoints\n");
+ goto error2;
+ }
+
+ usb_set_intfdata(ctx->data, dev);
+ usb_set_intfdata(ctx->control, dev);
+
+ if (ctx->ether_desc) {
+ temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
+ if (temp) {
+ dev_dbg(&intf->dev, "failed to get mac address\n");
+ goto error2;
+ }
+ dev_info(&intf->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
+ }
+
+ /* finish setting up the device specific data */
+ cdc_ncm_setup(dev);
+
+ /* Device-specific flags */
+ ctx->drvflags = drvflags;
+
+ /* Allocate the delayed NDP if needed. */
+ if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) {
+ ctx->delayed_ndp16 = kzalloc(ctx->max_ndp_size, GFP_KERNEL);
+ if (!ctx->delayed_ndp16)
+ goto error2;
+ dev_info(&intf->dev, "NDP will be placed at end of frame for this device.");
+ }
+
+ /* override ethtool_ops */
+ dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
+
+ /* add our sysfs attrs */
+ dev->net->sysfs_groups[0] = &cdc_ncm_sysfs_attr_group;
+
+ /* must handle MTU changes */
+ dev->net->netdev_ops = &cdc_ncm_netdev_ops;
+
+ return 0;
+
+error2:
+ usb_set_intfdata(ctx->control, NULL);
+ usb_set_intfdata(ctx->data, NULL);
+ if (ctx->data != ctx->control)
+ usb_driver_release_interface(driver, ctx->data);
+error:
+ cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]);
+ dev->data[0] = 0;
+ dev_info(&intf->dev, "bind() failure\n");
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_bind_common);
+
+void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ struct usb_driver *driver = driver_of(intf);
+
+ if (ctx == NULL)
+ return; /* no setup */
+
+ atomic_set(&ctx->stop, 1);
+
+ if (hrtimer_active(&ctx->tx_timer))
+ hrtimer_cancel(&ctx->tx_timer);
+
+ tasklet_kill(&ctx->bh);
+
+ /* handle devices with combined control and data interface */
+ if (ctx->control == ctx->data)
+ ctx->data = NULL;
+
+ /* disconnect master --> disconnect slave */
+ if (intf == ctx->control && ctx->data) {
+ usb_set_intfdata(ctx->data, NULL);
+ usb_driver_release_interface(driver, ctx->data);
+ ctx->data = NULL;
+
+ } else if (intf == ctx->data && ctx->control) {
+ usb_set_intfdata(ctx->control, NULL);
+ usb_driver_release_interface(driver, ctx->control);
+ ctx->control = NULL;
+ }
+
+ usb_set_intfdata(intf, NULL);
+ cdc_ncm_free(ctx);
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_unbind);
+
+/* Return the number of the MBIM control interface altsetting iff it
+ * is preferred and available,
+ */
+u8 cdc_ncm_select_altsetting(struct usb_interface *intf)
+{
+ struct usb_host_interface *alt;
+
+ /* The MBIM spec defines a NCM compatible default altsetting,
+ * which we may have matched:
+ *
+ * "Functions that implement both NCM 1.0 and MBIM (an
+ * “NCM/MBIM function”) according to this recommendation
+ * shall provide two alternate settings for the
+ * Communication Interface. Alternate setting 0, and the
+ * associated class and endpoint descriptors, shall be
+ * constructed according to the rules given for the
+ * Communication Interface in section 5 of [USBNCM10].
+ * Alternate setting 1, and the associated class and
+ * endpoint descriptors, shall be constructed according to
+ * the rules given in section 6 (USB Device Model) of this
+ * specification."
+ */
+ if (intf->num_altsetting < 2)
+ return intf->cur_altsetting->desc.bAlternateSetting;
+
+ if (prefer_mbim) {
+ alt = usb_altnum_to_altsetting(intf, CDC_NCM_COMM_ALTSETTING_MBIM);
+ if (alt && cdc_ncm_comm_intf_is_mbim(alt))
+ return CDC_NCM_COMM_ALTSETTING_MBIM;
+ }
+ return CDC_NCM_COMM_ALTSETTING_NCM;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_select_altsetting);
+
+static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ /* MBIM backwards compatible function? */
+ if (cdc_ncm_select_altsetting(intf) != CDC_NCM_COMM_ALTSETTING_NCM)
+ return -ENODEV;
+
+ /* The NCM data altsetting is fixed, so we hard-coded it.
+ * Additionally, generic NCM devices are assumed to accept arbitrarily
+ * placed NDP.
+ */
+ return cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0);
+}
+
+static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max)
+{
+ size_t align = ALIGN(skb->len, modulus) - skb->len + remainder;
+
+ if (skb->len + align > max)
+ align = max - skb->len;
+ if (align && skb_tailroom(skb) >= align)
+ memset(skb_put(skb, align), 0, align);
+}
+
+/* return a pointer to a valid struct usb_cdc_ncm_ndp16 of type sign, possibly
+ * allocating a new one within skb
+ */
+static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign, size_t reserve)
+{
+ struct usb_cdc_ncm_ndp16 *ndp16 = NULL;
+ struct usb_cdc_ncm_nth16 *nth16 = (void *)skb->data;
+ size_t ndpoffset = le16_to_cpu(nth16->wNdpIndex);
+
+ /* If NDP should be moved to the end of the NCM package, we can't follow the
+ * NTH16 header as we would normally do. NDP isn't written to the SKB yet, and
+ * the wNdpIndex field in the header is actually not consistent with reality. It will be later.
+ */
+ if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) {
+ if (ctx->delayed_ndp16->dwSignature == sign)
+ return ctx->delayed_ndp16;
+
+ /* We can only push a single NDP to the end. Return
+ * NULL to send what we've already got and queue this
+ * skb for later.
+ */
+ else if (ctx->delayed_ndp16->dwSignature)
+ return NULL;
+ }
+
+ /* follow the chain of NDPs, looking for a match */
+ while (ndpoffset) {
+ ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb->data + ndpoffset);
+ if (ndp16->dwSignature == sign)
+ return ndp16;
+ ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex);
+ }
+
+ /* align new NDP */
+ if (!(ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END))
+ cdc_ncm_align_tail(skb, ctx->tx_ndp_modulus, 0, ctx->tx_max);
+
+ /* verify that there is room for the NDP and the datagram (reserve) */
+ if ((ctx->tx_max - skb->len - reserve) < ctx->max_ndp_size)
+ return NULL;
+
+ /* link to it */
+ if (ndp16)
+ ndp16->wNextNdpIndex = cpu_to_le16(skb->len);
+ else
+ nth16->wNdpIndex = cpu_to_le16(skb->len);
+
+ /* push a new empty NDP */
+ if (!(ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END))
+ ndp16 = (struct usb_cdc_ncm_ndp16 *)memset(skb_put(skb, ctx->max_ndp_size), 0, ctx->max_ndp_size);
+ else
+ ndp16 = ctx->delayed_ndp16;
+
+ ndp16->dwSignature = sign;
+ ndp16->wLength = cpu_to_le16(sizeof(struct usb_cdc_ncm_ndp16) + sizeof(struct usb_cdc_ncm_dpe16));
+ return ndp16;
+}
+
+struct sk_buff *
+cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
+{
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ struct usb_cdc_ncm_nth16 *nth16;
+ struct usb_cdc_ncm_ndp16 *ndp16;
+ struct sk_buff *skb_out;
+ u16 n = 0, index, ndplen;
+ u8 ready2send = 0;
+ u32 delayed_ndp_size;
+
+ /* When our NDP gets written in cdc_ncm_ndp(), then skb_out->len gets updated
+ * accordingly. Otherwise, we should check here.
+ */
+ if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END)
+ delayed_ndp_size = ctx->max_ndp_size;
+ else
+ delayed_ndp_size = 0;
+
+ /* if there is a remaining skb, it gets priority */
+ if (skb != NULL) {
+ swap(skb, ctx->tx_rem_skb);
+ swap(sign, ctx->tx_rem_sign);
+ } else {
+ ready2send = 1;
+ }
+
+ /* check if we are resuming an OUT skb */
+ skb_out = ctx->tx_curr_skb;
+
+ /* allocate a new OUT skb */
+ if (!skb_out) {
+ skb_out = alloc_skb(ctx->tx_max, GFP_ATOMIC);
+ if (skb_out == NULL) {
+ if (skb != NULL) {
+ dev_kfree_skb_any(skb);
+ dev->net->stats.tx_dropped++;
+ }
+ goto exit_no_skb;
+ }
+ /* fill out the initial 16-bit NTB header */
+ nth16 = (struct usb_cdc_ncm_nth16 *)memset(skb_put(skb_out, sizeof(struct usb_cdc_ncm_nth16)), 0, sizeof(struct usb_cdc_ncm_nth16));
+ nth16->dwSignature = cpu_to_le32(USB_CDC_NCM_NTH16_SIGN);
+ nth16->wHeaderLength = cpu_to_le16(sizeof(struct usb_cdc_ncm_nth16));
+ nth16->wSequence = cpu_to_le16(ctx->tx_seq++);
+
+ /* count total number of frames in this NTB */
+ ctx->tx_curr_frame_num = 0;
+
+ /* recent payload counter for this skb_out */
+ ctx->tx_curr_frame_payload = 0;
+ }
+
+ for (n = ctx->tx_curr_frame_num; n < ctx->tx_max_datagrams; n++) {
+ /* send any remaining skb first */
+ if (skb == NULL) {
+ skb = ctx->tx_rem_skb;
+ sign = ctx->tx_rem_sign;
+ ctx->tx_rem_skb = NULL;
+
+ /* check for end of skb */
+ if (skb == NULL)
+ break;
+ }
+
+ /* get the appropriate NDP for this skb */
+ ndp16 = cdc_ncm_ndp(ctx, skb_out, sign, skb->len + ctx->tx_modulus + ctx->tx_remainder);
+
+ /* align beginning of next frame */
+ cdc_ncm_align_tail(skb_out, ctx->tx_modulus, ctx->tx_remainder, ctx->tx_max);
+
+ /* check if we had enough room left for both NDP and frame */
+ if (!ndp16 || skb_out->len + skb->len + delayed_ndp_size > ctx->tx_max) {
+ if (n == 0) {
+ /* won't fit, MTU problem? */
+ dev_kfree_skb_any(skb);
+ skb = NULL;
+ dev->net->stats.tx_dropped++;
+ } else {
+ /* no room for skb - store for later */
+ if (ctx->tx_rem_skb != NULL) {
+ dev_kfree_skb_any(ctx->tx_rem_skb);
+ dev->net->stats.tx_dropped++;
+ }
+ ctx->tx_rem_skb = skb;
+ ctx->tx_rem_sign = sign;
+ skb = NULL;
+ ready2send = 1;
+ ctx->tx_reason_ntb_full++; /* count reason for transmitting */
+ }
+ break;
+ }
+
+ /* calculate frame number withing this NDP */
+ ndplen = le16_to_cpu(ndp16->wLength);
+ index = (ndplen - sizeof(struct usb_cdc_ncm_ndp16)) / sizeof(struct usb_cdc_ncm_dpe16) - 1;
+
+ /* OK, add this skb */
+ ndp16->dpe16[index].wDatagramLength = cpu_to_le16(skb->len);
+ ndp16->dpe16[index].wDatagramIndex = cpu_to_le16(skb_out->len);
+ ndp16->wLength = cpu_to_le16(ndplen + sizeof(struct usb_cdc_ncm_dpe16));
+ memcpy(skb_put(skb_out, skb->len), skb->data, skb->len);
+ ctx->tx_curr_frame_payload += skb->len; /* count real tx payload data */
+ dev_kfree_skb_any(skb);
+ skb = NULL;
+
+ /* send now if this NDP is full */
+ if (index >= CDC_NCM_DPT_DATAGRAMS_MAX) {
+ ready2send = 1;
+ ctx->tx_reason_ndp_full++; /* count reason for transmitting */
+ break;
+ }
+ }
+
+ /* free up any dangling skb */
+ if (skb != NULL) {
+ dev_kfree_skb_any(skb);
+ skb = NULL;
+ dev->net->stats.tx_dropped++;
+ }
+
+ ctx->tx_curr_frame_num = n;
+
+ if (n == 0) {
+ /* wait for more frames */
+ /* push variables */
+ ctx->tx_curr_skb = skb_out;
+ goto exit_no_skb;
+
+ } else if ((n < ctx->tx_max_datagrams) && (ready2send == 0) && (ctx->timer_interval > 0)) {
+ /* wait for more frames */
+ /* push variables */
+ ctx->tx_curr_skb = skb_out;
+ /* set the pending count */
+ if (n < CDC_NCM_RESTART_TIMER_DATAGRAM_CNT)
+ ctx->tx_timer_pending = CDC_NCM_TIMER_PENDING_CNT;
+ goto exit_no_skb;
+
+ } else {
+ if (n == ctx->tx_max_datagrams)
+ ctx->tx_reason_max_datagram++; /* count reason for transmitting */
+ /* frame goes out */
+ /* variables will be reset at next call */
+ }
+
+ /* If requested, put NDP at end of frame. */
+ if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) {
+ nth16 = (struct usb_cdc_ncm_nth16 *)skb_out->data;
+ cdc_ncm_align_tail(skb_out, ctx->tx_ndp_modulus, 0, ctx->tx_max);
+ nth16->wNdpIndex = cpu_to_le16(skb_out->len);
+ memcpy(skb_put(skb_out, ctx->max_ndp_size), ctx->delayed_ndp16, ctx->max_ndp_size);
+
+ /* Zero out delayed NDP - signature checking will naturally fail. */
+ ndp16 = memset(ctx->delayed_ndp16, 0, ctx->max_ndp_size);
+ }
+
+ /* If collected data size is less or equal ctx->min_tx_pkt
+ * bytes, we send buffers as it is. If we get more data, it
+ * would be more efficient for USB HS mobile device with DMA
+ * engine to receive a full size NTB, than canceling DMA
+ * transfer and receiving a short packet.
+ *
+ * This optimization support is pointless if we end up sending
+ * a ZLP after full sized NTBs.
+ */
+ if (!(dev->driver_info->flags & FLAG_SEND_ZLP) &&
+ skb_out->len > ctx->min_tx_pkt)
+ memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0,
+ ctx->tx_max - skb_out->len);
+ else if (skb_out->len < ctx->tx_max && (skb_out->len % dev->maxpacket) == 0)
+ *skb_put(skb_out, 1) = 0; /* force short packet */
+
+ /* set final frame length */
+ nth16 = (struct usb_cdc_ncm_nth16 *)skb_out->data;
+ nth16->wBlockLength = cpu_to_le16(skb_out->len);
+
+ /* return skb */
+ ctx->tx_curr_skb = NULL;
+
+ /* keep private stats: framing overhead and number of NTBs */
+ ctx->tx_overhead += skb_out->len - ctx->tx_curr_frame_payload;
+ ctx->tx_ntbs++;
+
+ /* usbnet will count all the framing overhead by default.
+ * Adjust the stats so that the tx_bytes counter show real
+ * payload data instead.
+ */
+ usbnet_set_skb_tx_stats(skb_out, n,
+ (long)ctx->tx_curr_frame_payload - skb_out->len);
+
+ return skb_out;
+
+exit_no_skb:
+ /* Start timer, if there is a remaining non-empty skb */
+ if (ctx->tx_curr_skb != NULL && n > 0)
+ cdc_ncm_tx_timeout_start(ctx);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_fill_tx_frame);
+
+static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx)
+{
+ /* start timer, if not already started */
+ if (!(hrtimer_active(&ctx->tx_timer) || atomic_read(&ctx->stop)))
+ hrtimer_start(&ctx->tx_timer,
+ ktime_set(0, ctx->timer_interval),
+ HRTIMER_MODE_REL);
+}
+
+static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *timer)
+{
+ struct cdc_ncm_ctx *ctx =
+ container_of(timer, struct cdc_ncm_ctx, tx_timer);
+
+ if (!atomic_read(&ctx->stop))
+ tasklet_schedule(&ctx->bh);
+ return HRTIMER_NORESTART;
+}
+
+static void cdc_ncm_txpath_bh(unsigned long param)
+{
+ struct usbnet *dev = (struct usbnet *)param;
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ spin_lock_bh(&ctx->mtx);
+ if (ctx->tx_timer_pending != 0) {
+ ctx->tx_timer_pending--;
+ cdc_ncm_tx_timeout_start(ctx);
+ spin_unlock_bh(&ctx->mtx);
+ } else if (dev->net != NULL) {
+ ctx->tx_reason_timeout++; /* count reason for transmitting */
+ spin_unlock_bh(&ctx->mtx);
+ netif_tx_lock_bh(dev->net);
+ usbnet_start_xmit(NULL, dev->net);
+ netif_tx_unlock_bh(dev->net);
+ } else {
+ spin_unlock_bh(&ctx->mtx);
+ }
+}
+
+struct sk_buff *
+cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ struct sk_buff *skb_out;
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ /*
+ * The Ethernet API we are using does not support transmitting
+ * multiple Ethernet frames in a single call. This driver will
+ * accumulate multiple Ethernet frames and send out a larger
+ * USB frame when the USB buffer is full or when a single jiffies
+ * timeout happens.
+ */
+ if (ctx == NULL)
+ goto error;
+
+ spin_lock_bh(&ctx->mtx);
+ skb_out = cdc_ncm_fill_tx_frame(dev, skb, cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN));
+ spin_unlock_bh(&ctx->mtx);
+ return skb_out;
+
+error:
+ if (skb != NULL)
+ dev_kfree_skb_any(skb);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_tx_fixup);
+
+/* verify NTB header and return offset of first NDP, or negative error */
+int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
+{
+ struct usbnet *dev = netdev_priv(skb_in->dev);
+ struct usb_cdc_ncm_nth16 *nth16;
+ int len;
+ int ret = -EINVAL;
+
+ if (ctx == NULL)
+ goto error;
+
+ if (skb_in->len < (sizeof(struct usb_cdc_ncm_nth16) +
+ sizeof(struct usb_cdc_ncm_ndp16))) {
+ netif_dbg(dev, rx_err, dev->net, "frame too short\n");
+ goto error;
+ }
+
+ nth16 = (struct usb_cdc_ncm_nth16 *)skb_in->data;
+
+ if (nth16->dwSignature != cpu_to_le32(USB_CDC_NCM_NTH16_SIGN)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "invalid NTH16 signature <%#010x>\n",
+ le32_to_cpu(nth16->dwSignature));
+ goto error;
+ }
+
+ len = le16_to_cpu(nth16->wBlockLength);
+ if (len > ctx->rx_max) {
+ netif_dbg(dev, rx_err, dev->net,
+ "unsupported NTB block length %u/%u\n", len,
+ ctx->rx_max);
+ goto error;
+ }
+
+ if ((ctx->rx_seq + 1) != le16_to_cpu(nth16->wSequence) &&
+ (ctx->rx_seq || le16_to_cpu(nth16->wSequence)) &&
+ !((ctx->rx_seq == 0xffff) && !le16_to_cpu(nth16->wSequence))) {
+ netif_dbg(dev, rx_err, dev->net,
+ "sequence number glitch prev=%d curr=%d\n",
+ ctx->rx_seq, le16_to_cpu(nth16->wSequence));
+ }
+ ctx->rx_seq = le16_to_cpu(nth16->wSequence);
+
+ ret = le16_to_cpu(nth16->wNdpIndex);
+error:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_nth16);
+
+/* verify NDP header and return number of datagrams, or negative error */
+int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset)
+{
+ struct usbnet *dev = netdev_priv(skb_in->dev);
+ struct usb_cdc_ncm_ndp16 *ndp16;
+ int ret = -EINVAL;
+
+ if ((ndpoffset + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len) {
+ netif_dbg(dev, rx_err, dev->net, "invalid NDP offset <%u>\n",
+ ndpoffset);
+ goto error;
+ }
+ ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
+
+ if (le16_to_cpu(ndp16->wLength) < USB_CDC_NCM_NDP16_LENGTH_MIN) {
+ netif_dbg(dev, rx_err, dev->net, "invalid DPT16 length <%u>\n",
+ le16_to_cpu(ndp16->wLength));
+ goto error;
+ }
+
+ ret = ((le16_to_cpu(ndp16->wLength) -
+ sizeof(struct usb_cdc_ncm_ndp16)) /
+ sizeof(struct usb_cdc_ncm_dpe16));
+ ret--; /* we process NDP entries except for the last one */
+
+ if ((sizeof(struct usb_cdc_ncm_ndp16) +
+ ret * (sizeof(struct usb_cdc_ncm_dpe16))) > skb_in->len) {
+ netif_dbg(dev, rx_err, dev->net, "Invalid nframes = %d\n", ret);
+ ret = -EINVAL;
+ }
+
+error:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_ndp16);
+
+int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in)
+{
+ struct sk_buff *skb;
+ struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+ int len;
+ int nframes;
+ int x;
+ int offset;
+ struct usb_cdc_ncm_ndp16 *ndp16;
+ struct usb_cdc_ncm_dpe16 *dpe16;
+ int ndpoffset;
+ int loopcount = 50; /* arbitrary max preventing infinite loop */
+ u32 payload = 0;
+
+ ndpoffset = cdc_ncm_rx_verify_nth16(ctx, skb_in);
+ if (ndpoffset < 0)
+ goto error;
+
+next_ndp:
+ nframes = cdc_ncm_rx_verify_ndp16(skb_in, ndpoffset);
+ if (nframes < 0)
+ goto error;
+
+ ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
+
+ if (ndp16->dwSignature != cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "invalid DPT16 signature <%#010x>\n",
+ le32_to_cpu(ndp16->dwSignature));
+ goto err_ndp;
+ }
+ dpe16 = ndp16->dpe16;
+
+ for (x = 0; x < nframes; x++, dpe16++) {
+ offset = le16_to_cpu(dpe16->wDatagramIndex);
+ len = le16_to_cpu(dpe16->wDatagramLength);
+
+ /*
+ * CDC NCM ch. 3.7
+ * All entries after first NULL entry are to be ignored
+ */
+ if ((offset == 0) || (len == 0)) {
+ if (!x)
+ goto err_ndp; /* empty NTB */
+ break;
+ }
+
+ /* sanity checking */
+ if (((offset + len) > skb_in->len) ||
+ (len > ctx->rx_max) || (len < ETH_HLEN)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n",
+ x, offset, len, skb_in);
+ if (!x)
+ goto err_ndp;
+ break;
+
+ } else {
+ /* create a fresh copy to reduce truesize */
+ skb = netdev_alloc_skb_ip_align(dev->net, len);
+ if (!skb)
+ goto error;
+ memcpy(skb_put(skb, len), skb_in->data + offset, len);
+ usbnet_skb_return(dev, skb);
+ payload += len; /* count payload bytes in this NTB */
+ }
+ }
+err_ndp:
+ /* are there more NDPs to process? */
+ ndpoffset = le16_to_cpu(ndp16->wNextNdpIndex);
+ if (ndpoffset && loopcount--)
+ goto next_ndp;
+
+ /* update stats */
+ ctx->rx_overhead += skb_in->len - payload;
+ ctx->rx_ntbs++;
+
+ return 1;
+error:
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_rx_fixup);
+
+static void
+cdc_ncm_speed_change(struct usbnet *dev,
+ struct usb_cdc_speed_change *data)
+{
+ uint32_t rx_speed = le32_to_cpu(data->DLBitRRate);
+ uint32_t tx_speed = le32_to_cpu(data->ULBitRate);
+
+ /*
+ * Currently the USB-NET API does not support reporting the actual
+ * device speed. Do print it instead.
+ */
+ if ((tx_speed > 1000000) && (rx_speed > 1000000)) {
+ netif_info(dev, link, dev->net,
+ "%u mbit/s downlink %u mbit/s uplink\n",
+ (unsigned int)(rx_speed / 1000000U),
+ (unsigned int)(tx_speed / 1000000U));
+ } else {
+ netif_info(dev, link, dev->net,
+ "%u kbit/s downlink %u kbit/s uplink\n",
+ (unsigned int)(rx_speed / 1000U),
+ (unsigned int)(tx_speed / 1000U));
+ }
+}
+
+static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
+{
+ struct cdc_ncm_ctx *ctx;
+ struct usb_cdc_notification *event;
+
+ ctx = (struct cdc_ncm_ctx *)dev->data[0];
+
+ if (urb->actual_length < sizeof(*event))
+ return;
+
+ /* test for split data in 8-byte chunks */
+ if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
+ cdc_ncm_speed_change(dev,
+ (struct usb_cdc_speed_change *)urb->transfer_buffer);
+ return;
+ }
+
+ event = urb->transfer_buffer;
+
+ switch (event->bNotificationType) {
+ case USB_CDC_NOTIFY_NETWORK_CONNECTION:
+ /*
+ * According to the CDC NCM specification ch.7.1
+ * USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be
+ * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE.
+ */
+ netif_info(dev, link, dev->net,
+ "network connection: %sconnected\n",
+ !!event->wValue ? "" : "dis");
+ usbnet_link_change(dev, !!event->wValue, 0);
+ break;
+
+ case USB_CDC_NOTIFY_SPEED_CHANGE:
+ if (urb->actual_length < (sizeof(*event) +
+ sizeof(struct usb_cdc_speed_change)))
+ set_bit(EVENT_STS_SPLIT, &dev->flags);
+ else
+ cdc_ncm_speed_change(dev,
+ (struct usb_cdc_speed_change *)&event[1]);
+ break;
+
+ default:
+ dev_dbg(&dev->udev->dev,
+ "NCM: unexpected notification 0x%02x!\n",
+ event->bNotificationType);
+ break;
+ }
+}
+
+static const struct driver_info cdc_ncm_info = {
+ .description = "CDC NCM",
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+ | FLAG_LINK_INTR,
+ .bind = cdc_ncm_bind,
+ .unbind = cdc_ncm_unbind,
+ .manage_power = usbnet_manage_power,
+ .status = cdc_ncm_status,
+ .rx_fixup = cdc_ncm_rx_fixup,
+ .tx_fixup = cdc_ncm_tx_fixup,
+};
+
+/* Same as cdc_ncm_info, but with FLAG_WWAN */
+static const struct driver_info wwan_info = {
+ .description = "Mobile Broadband Network Device",
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+ | FLAG_LINK_INTR | FLAG_WWAN,
+ .bind = cdc_ncm_bind,
+ .unbind = cdc_ncm_unbind,
+ .manage_power = usbnet_manage_power,
+ .status = cdc_ncm_status,
+ .rx_fixup = cdc_ncm_rx_fixup,
+ .tx_fixup = cdc_ncm_tx_fixup,
+};
+
+/* Same as wwan_info, but with FLAG_NOARP */
+static const struct driver_info wwan_noarp_info = {
+ .description = "Mobile Broadband Network Device (NO ARP)",
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+ | FLAG_LINK_INTR | FLAG_WWAN | FLAG_NOARP,
+ .bind = cdc_ncm_bind,
+ .unbind = cdc_ncm_unbind,
+ .manage_power = usbnet_manage_power,
+ .status = cdc_ncm_status,
+ .rx_fixup = cdc_ncm_rx_fixup,
+ .tx_fixup = cdc_ncm_tx_fixup,
+};
+
+static const struct usb_device_id cdc_devs[] = {
+ /* Ericsson MBM devices like F5521gw */
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_VENDOR,
+ .idVendor = 0x0bdb,
+ .bInterfaceClass = USB_CLASS_COMM,
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+ .driver_info = (unsigned long) &wwan_info,
+ },
+
+ /* DW5812 LTE Verizon Mobile Broadband Card
+ * Unlike DW5550 this device requires FLAG_NOARP
+ */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bb,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_noarp_info,
+ },
+
+ /* DW5813 LTE AT&T Mobile Broadband Card
+ * Unlike DW5550 this device requires FLAG_NOARP
+ */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bc,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_noarp_info,
+ },
+
+ /* Dell branded MBM devices like DW5550 */
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_VENDOR,
+ .idVendor = 0x413c,
+ .bInterfaceClass = USB_CLASS_COMM,
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+ .driver_info = (unsigned long) &wwan_info,
+ },
+
+ /* Toshiba branded MBM devices */
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_VENDOR,
+ .idVendor = 0x0930,
+ .bInterfaceClass = USB_CLASS_COMM,
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+ .driver_info = (unsigned long) &wwan_info,
+ },
+
+ /* tag Huawei devices as wwan */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_NCM,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_info,
+ },
+
+ /* Infineon(now Intel) HSPA Modem platform */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&wwan_noarp_info,
+ },
+
+ /* Generic CDC-NCM devices */
+ { USB_INTERFACE_INFO(USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_ncm_info,
+ },
+ {
+ },
+};
+MODULE_DEVICE_TABLE(usb, cdc_devs);
+
+static struct usb_driver cdc_ncm_driver = {
+ .name = "cdc_ncm",
+ .id_table = cdc_devs,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .reset_resume = usbnet_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(cdc_ncm_driver);
+
+MODULE_AUTHOR("Hans Petter Selasky");
+MODULE_DESCRIPTION("USB CDC NCM host driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/usb/cdc_subset.c b/drivers/net/usb/cdc_subset.c
new file mode 100644
index 0000000..6ea98cf
--- /dev/null
+++ b/drivers/net/usb/cdc_subset.c
@@ -0,0 +1,369 @@
+/*
+ * Simple "CDC Subset" USB Networking Links
+ * Copyright (C) 2000-2005 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+
+
+/*
+ * This supports simple USB network links that don't require any special
+ * framing or hardware control operations. The protocol used here is a
+ * strict subset of CDC Ethernet, with three basic differences reflecting
+ * the goal that almost any hardware should run it:
+ *
+ * - Minimal runtime control: one interface, no altsettings, and
+ * no vendor or class specific control requests. If a device is
+ * configured, it is allowed to exchange packets with the host.
+ * Fancier models would mean not working on some hardware.
+ *
+ * - Minimal manufacturing control: no IEEE "Organizationally
+ * Unique ID" required, or an EEPROMs to store one. Each host uses
+ * one random "locally assigned" Ethernet address instead, which can
+ * of course be overridden using standard tools like "ifconfig".
+ * (With 2^46 such addresses, same-net collisions are quite rare.)
+ *
+ * - There is no additional framing data for USB. Packets are written
+ * exactly as in CDC Ethernet, starting with an Ethernet header and
+ * terminated by a short packet. However, the host will never send a
+ * zero length packet; some systems can't handle those robustly.
+ *
+ * Anything that can transmit and receive USB bulk packets can implement
+ * this protocol. That includes both smart peripherals and quite a lot
+ * of "host-to-host" USB cables (which embed two devices back-to-back).
+ *
+ * Note that although Linux may use many of those host-to-host links
+ * with this "cdc_subset" framing, that doesn't mean there may not be a
+ * better approach. Handling the "other end unplugs/replugs" scenario
+ * well tends to require chip-specific vendor requests. Also, Windows
+ * peers at the other end of host-to-host cables may expect their own
+ * framing to be used rather than this "cdc_subset" model.
+ */
+
+#if defined(CONFIG_USB_EPSON2888) || defined(CONFIG_USB_ARMLINUX)
+/* PDA style devices are always connected if present */
+static int always_connected (struct usbnet *dev)
+{
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_USB_ALI_M5632
+#define HAVE_HARDWARE
+
+/*-------------------------------------------------------------------------
+ *
+ * ALi M5632 driver ... does high speed
+ *
+ * NOTE that the MS-Windows drivers for this chip use some funky and
+ * (naturally) undocumented 7-byte prefix to each packet, so this is a
+ * case where we don't currently interoperate. Also, once you unplug
+ * one end of the cable, you need to replug the other end too ... since
+ * chip docs are unavailable, there's no way to reset the relevant state
+ * short of a power cycle.
+ *
+ *-------------------------------------------------------------------------*/
+
+static void m5632_recover(struct usbnet *dev)
+{
+ struct usb_device *udev = dev->udev;
+ struct usb_interface *intf = dev->intf;
+ int r;
+
+ r = usb_lock_device_for_reset(udev, intf);
+ if (r < 0)
+ return;
+
+ usb_reset_device(udev);
+ usb_unlock_device(udev);
+}
+
+static const struct driver_info ali_m5632_info = {
+ .description = "ALi M5632",
+ .flags = FLAG_POINTTOPOINT,
+ .recover = m5632_recover,
+};
+
+#endif
+
+#ifdef CONFIG_USB_AN2720
+#define HAVE_HARDWARE
+
+/*-------------------------------------------------------------------------
+ *
+ * AnchorChips 2720 driver ... http://www.cypress.com
+ *
+ * This doesn't seem to have a way to detect whether the peer is
+ * connected, or need any reset handshaking. It's got pretty big
+ * internal buffers (handles most of a frame's worth of data).
+ * Chip data sheets don't describe any vendor control messages.
+ *
+ *-------------------------------------------------------------------------*/
+
+static const struct driver_info an2720_info = {
+ .description = "AnchorChips/Cypress 2720",
+ .flags = FLAG_POINTTOPOINT,
+ // no reset available!
+ // no check_connect available!
+
+ .in = 2, .out = 2, // direction distinguishes these
+};
+
+#endif /* CONFIG_USB_AN2720 */
+
+
+#ifdef CONFIG_USB_BELKIN
+#define HAVE_HARDWARE
+
+/*-------------------------------------------------------------------------
+ *
+ * Belkin F5U104 ... two NetChip 2280 devices + Atmel AVR microcontroller
+ *
+ * ... also two eTEK designs, including one sold as "Advance USBNET"
+ *
+ *-------------------------------------------------------------------------*/
+
+static const struct driver_info belkin_info = {
+ .description = "Belkin, eTEK, or compatible",
+ .flags = FLAG_POINTTOPOINT,
+};
+
+#endif /* CONFIG_USB_BELKIN */
+
+
+
+#ifdef CONFIG_USB_EPSON2888
+#define HAVE_HARDWARE
+
+/*-------------------------------------------------------------------------
+ *
+ * EPSON USB clients
+ *
+ * This is the same idea as Linux PDAs (below) except the firmware in the
+ * device might not be Tux-powered. Epson provides reference firmware that
+ * implements this interface. Product developers can reuse or modify that
+ * code, such as by using their own product and vendor codes.
+ *
+ * Support was from Juro Bystricky <bystricky.juro@erd.epson.com>
+ *
+ *-------------------------------------------------------------------------*/
+
+static const struct driver_info epson2888_info = {
+ .description = "Epson USB Device",
+ .check_connect = always_connected,
+ .flags = FLAG_POINTTOPOINT,
+
+ .in = 4, .out = 3,
+};
+
+#endif /* CONFIG_USB_EPSON2888 */
+
+
+/*-------------------------------------------------------------------------
+ *
+ * info from Jonathan McDowell <noodles@earth.li>
+ *
+ *-------------------------------------------------------------------------*/
+#ifdef CONFIG_USB_KC2190
+#define HAVE_HARDWARE
+static const struct driver_info kc2190_info = {
+ .description = "KC Technology KC-190",
+ .flags = FLAG_POINTTOPOINT,
+};
+#endif /* CONFIG_USB_KC2190 */
+
+
+#ifdef CONFIG_USB_ARMLINUX
+#define HAVE_HARDWARE
+
+/*-------------------------------------------------------------------------
+ *
+ * Intel's SA-1100 chip integrates basic USB support, and is used
+ * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more.
+ * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to
+ * network using minimal USB framing data.
+ *
+ * This describes the driver currently in standard ARM Linux kernels.
+ * The Zaurus uses a different driver (see later).
+ *
+ * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support
+ * and different USB endpoint numbering than the SA1100 devices. The
+ * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100
+ * so we rely on the endpoint descriptors.
+ *
+ *-------------------------------------------------------------------------*/
+
+static const struct driver_info linuxdev_info = {
+ .description = "Linux Device",
+ .check_connect = always_connected,
+ .flags = FLAG_POINTTOPOINT,
+};
+
+static const struct driver_info yopy_info = {
+ .description = "Yopy",
+ .check_connect = always_connected,
+ .flags = FLAG_POINTTOPOINT,
+};
+
+static const struct driver_info blob_info = {
+ .description = "Boot Loader OBject",
+ .check_connect = always_connected,
+ .flags = FLAG_POINTTOPOINT,
+};
+
+#endif /* CONFIG_USB_ARMLINUX */
+
+
+/*-------------------------------------------------------------------------*/
+
+#ifndef HAVE_HARDWARE
+#warning You need to configure some hardware for this driver
+#endif
+
+/*
+ * chip vendor names won't normally be on the cables, and
+ * may not be on the device.
+ */
+
+static const struct usb_device_id products [] = {
+
+#ifdef CONFIG_USB_ALI_M5632
+{
+ USB_DEVICE (0x0402, 0x5632), // ALi defaults
+ .driver_info = (unsigned long) &ali_m5632_info,
+},
+{
+ USB_DEVICE (0x182d,0x207c), // SiteCom CN-124
+ .driver_info = (unsigned long) &ali_m5632_info,
+},
+#endif
+
+#ifdef CONFIG_USB_AN2720
+{
+ USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults
+ .driver_info = (unsigned long) &an2720_info,
+}, {
+ USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET
+ .driver_info = (unsigned long) &an2720_info,
+},
+#endif
+
+#ifdef CONFIG_USB_BELKIN
+{
+ USB_DEVICE (0x050d, 0x0004), // Belkin
+ .driver_info = (unsigned long) &belkin_info,
+}, {
+ USB_DEVICE (0x056c, 0x8100), // eTEK
+ .driver_info = (unsigned long) &belkin_info,
+}, {
+ USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK)
+ .driver_info = (unsigned long) &belkin_info,
+},
+#endif
+
+#ifdef CONFIG_USB_EPSON2888
+{
+ USB_DEVICE (0x0525, 0x2888), // EPSON USB client
+ .driver_info = (unsigned long) &epson2888_info,
+},
+#endif
+
+#ifdef CONFIG_USB_KC2190
+{
+ USB_DEVICE (0x050f, 0x0190), // KC-190
+ .driver_info = (unsigned long) &kc2190_info,
+},
+#endif
+
+#ifdef CONFIG_USB_ARMLINUX
+/*
+ * SA-1100 using standard ARM Linux kernels, or compatible.
+ * Often used when talking to Linux PDAs (iPaq, Yopy, etc).
+ * The sa-1100 "usb-eth" driver handles the basic framing.
+ *
+ * PXA25x or PXA210 ... these use a "usb-eth" driver much like
+ * the sa1100 one, but hardware uses different endpoint numbers.
+ *
+ * Or the Linux "Ethernet" gadget on hardware that can't talk
+ * CDC Ethernet (e.g., no altsettings), in either of two modes:
+ * - acting just like the old "usb-eth" firmware, though
+ * the implementation is different
+ * - supporting RNDIS as the first/default configuration for
+ * MS-Windows interop; Linux needs to use the other config
+ */
+{
+ // 1183 = 0x049F, both used as hex values?
+ // Compaq "Itsy" vendor/product id
+ USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible
+ .driver_info = (unsigned long) &linuxdev_info,
+}, {
+ USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy"
+ .driver_info = (unsigned long) &yopy_info,
+}, {
+ USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader
+ .driver_info = (unsigned long) &blob_info,
+}, {
+ USB_DEVICE (0x1286, 0x8001), // "blob" bootloader
+ .driver_info = (unsigned long) &blob_info,
+}, {
+ // Linux Ethernet/RNDIS gadget, mostly on PXA, second config
+ // e.g. Gumstix, current OpenZaurus, ... or anything else
+ // that just enables this gadget option.
+ USB_DEVICE (0x0525, 0xa4a2),
+ .driver_info = (unsigned long) &linuxdev_info,
+},
+#endif
+
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+/*-------------------------------------------------------------------------*/
+static int dummy_prereset(struct usb_interface *intf)
+{
+ return 0;
+}
+
+static int dummy_postreset(struct usb_interface *intf)
+{
+ return 0;
+}
+
+static struct usb_driver cdc_subset_driver = {
+ .name = "cdc_subset",
+ .probe = usbnet_probe,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .pre_reset = dummy_prereset,
+ .post_reset = dummy_postreset,
+ .disconnect = usbnet_disconnect,
+ .id_table = products,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(cdc_subset_driver);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("Simple 'CDC Subset' USB networking links");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
new file mode 100644
index 0000000..5e151e6
--- /dev/null
+++ b/drivers/net/usb/ch9200.c
@@ -0,0 +1,432 @@
+/*
+ * USB 10M/100M ethernet adapter
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+
+#define CH9200_VID 0x1A86
+#define CH9200_PID_E092 0xE092
+
+#define CTRL_TIMEOUT_MS 1000
+
+#define CONTROL_TIMEOUT_MS 1000
+
+#define REQUEST_READ 0x0E
+#define REQUEST_WRITE 0x0F
+
+/* Address space:
+ * 00-63 : MII
+ * 64-128: MAC
+ *
+ * Note: all accesses must be 16-bit
+ */
+
+#define MAC_REG_CTRL 64
+#define MAC_REG_STATUS 66
+#define MAC_REG_INTERRUPT_MASK 68
+#define MAC_REG_PHY_COMMAND 70
+#define MAC_REG_PHY_DATA 72
+#define MAC_REG_STATION_L 74
+#define MAC_REG_STATION_M 76
+#define MAC_REG_STATION_H 78
+#define MAC_REG_HASH_L 80
+#define MAC_REG_HASH_M1 82
+#define MAC_REG_HASH_M2 84
+#define MAC_REG_HASH_H 86
+#define MAC_REG_THRESHOLD 88
+#define MAC_REG_FIFO_DEPTH 90
+#define MAC_REG_PAUSE 92
+#define MAC_REG_FLOW_CONTROL 94
+
+/* Control register bits
+ *
+ * Note: bits 13 and 15 are reserved
+ */
+#define LOOPBACK (0x01 << 14)
+#define BASE100X (0x01 << 12)
+#define MBPS_10 (0x01 << 11)
+#define DUPLEX_MODE (0x01 << 10)
+#define PAUSE_FRAME (0x01 << 9)
+#define PROMISCUOUS (0x01 << 8)
+#define MULTICAST (0x01 << 7)
+#define BROADCAST (0x01 << 6)
+#define HASH (0x01 << 5)
+#define APPEND_PAD (0x01 << 4)
+#define APPEND_CRC (0x01 << 3)
+#define TRANSMITTER_ACTION (0x01 << 2)
+#define RECEIVER_ACTION (0x01 << 1)
+#define DMA_ACTION (0x01 << 0)
+
+/* Status register bits
+ *
+ * Note: bits 7-15 are reserved
+ */
+#define ALIGNMENT (0x01 << 6)
+#define FIFO_OVER_RUN (0x01 << 5)
+#define FIFO_UNDER_RUN (0x01 << 4)
+#define RX_ERROR (0x01 << 3)
+#define RX_COMPLETE (0x01 << 2)
+#define TX_ERROR (0x01 << 1)
+#define TX_COMPLETE (0x01 << 0)
+
+/* FIFO depth register bits
+ *
+ * Note: bits 6 and 14 are reserved
+ */
+
+#define ETH_TXBD (0x01 << 15)
+#define ETN_TX_FIFO_DEPTH (0x01 << 8)
+#define ETH_RXBD (0x01 << 7)
+#define ETH_RX_FIFO_DEPTH (0x01 << 0)
+
+static int control_read(struct usbnet *dev,
+ unsigned char request, unsigned short value,
+ unsigned short index, void *data, unsigned short size,
+ int timeout)
+{
+ unsigned char *buf = NULL;
+ unsigned char request_type;
+ int err = 0;
+
+ if (request == REQUEST_READ)
+ request_type = (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER);
+ else
+ request_type = (USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE);
+
+ netdev_dbg(dev->net, "Control_read() index=0x%02x size=%d\n",
+ index, size);
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+
+ err = usb_control_msg(dev->udev,
+ usb_rcvctrlpipe(dev->udev, 0),
+ request, request_type, value, index, buf, size,
+ timeout);
+ if (err == size)
+ memcpy(data, buf, size);
+ else if (err >= 0)
+ err = -EINVAL;
+ kfree(buf);
+
+ return err;
+
+err_out:
+ return err;
+}
+
+static int control_write(struct usbnet *dev, unsigned char request,
+ unsigned short value, unsigned short index,
+ void *data, unsigned short size, int timeout)
+{
+ unsigned char *buf = NULL;
+ unsigned char request_type;
+ int err = 0;
+
+ if (request == REQUEST_WRITE)
+ request_type = (USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_OTHER);
+ else
+ request_type = (USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE);
+
+ netdev_dbg(dev->net, "Control_write() index=0x%02x size=%d\n",
+ index, size);
+
+ if (data) {
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+ memcpy(buf, data, size);
+ }
+
+ err = usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ request, request_type, value, index, buf, size,
+ timeout);
+ if (err >= 0 && err < size)
+ err = -EINVAL;
+ kfree(buf);
+
+ return 0;
+
+err_out:
+ return err;
+}
+
+static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ unsigned char buff[2];
+
+ netdev_dbg(netdev, "ch9200_mdio_read phy_id:%02x loc:%02x\n",
+ phy_id, loc);
+
+ if (phy_id != 0)
+ return -ENODEV;
+
+ control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02,
+ CONTROL_TIMEOUT_MS);
+
+ return (buff[0] | buff[1] << 8);
+}
+
+static void ch9200_mdio_write(struct net_device *netdev,
+ int phy_id, int loc, int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ unsigned char buff[2];
+
+ netdev_dbg(netdev, "ch9200_mdio_write() phy_id=%02x loc:%02x\n",
+ phy_id, loc);
+
+ if (phy_id != 0)
+ return;
+
+ buff[0] = (unsigned char)val;
+ buff[1] = (unsigned char)(val >> 8);
+
+ control_write(dev, REQUEST_WRITE, 0, loc * 2, buff, 0x02,
+ CONTROL_TIMEOUT_MS);
+}
+
+static int ch9200_link_reset(struct usbnet *dev)
+{
+ struct ethtool_cmd ecmd;
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+
+ netdev_dbg(dev->net, "link_reset() speed:%d duplex:%d\n",
+ ecmd.speed, ecmd.duplex);
+
+ return 0;
+}
+
+static void ch9200_status(struct usbnet *dev, struct urb *urb)
+{
+ int link;
+ unsigned char *buf;
+
+ if (urb->actual_length < 16)
+ return;
+
+ buf = urb->transfer_buffer;
+ link = !!(buf[0] & 0x01);
+
+ if (link) {
+ netif_carrier_on(dev->net);
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ } else {
+ netif_carrier_off(dev->net);
+ }
+}
+
+static struct sk_buff *ch9200_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int i = 0;
+ int len = 0;
+ int tx_overhead = 0;
+
+ tx_overhead = 0x40;
+
+ len = skb->len;
+ if (skb_headroom(skb) < tx_overhead) {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb, tx_overhead, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ __skb_push(skb, tx_overhead);
+ /* usbnet adds padding if length is a multiple of packet size
+ * if so, adjust length value in header
+ */
+ if ((skb->len % dev->maxpacket) == 0)
+ len++;
+
+ skb->data[0] = len;
+ skb->data[1] = len >> 8;
+ skb->data[2] = 0x00;
+ skb->data[3] = 0x80;
+
+ for (i = 4; i < 48; i++)
+ skb->data[i] = 0x00;
+
+ skb->data[48] = len;
+ skb->data[49] = len >> 8;
+ skb->data[50] = 0x00;
+ skb->data[51] = 0x80;
+
+ for (i = 52; i < 64; i++)
+ skb->data[i] = 0x00;
+
+ return skb;
+}
+
+static int ch9200_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int len = 0;
+ int rx_overhead = 0;
+
+ rx_overhead = 64;
+
+ if (unlikely(skb->len < rx_overhead)) {
+ dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
+ return 0;
+ }
+
+ len = (skb->data[skb->len - 16] | skb->data[skb->len - 15] << 8);
+ skb_trim(skb, len);
+
+ return 1;
+}
+
+static int get_mac_address(struct usbnet *dev, unsigned char *data)
+{
+ int err = 0;
+ unsigned char mac_addr[0x06];
+ int rd_mac_len = 0;
+
+ netdev_dbg(dev->net, "get_mac_address:\n\tusbnet VID:%0x PID:%0x\n",
+ dev->udev->descriptor.idVendor,
+ dev->udev->descriptor.idProduct);
+
+ memset(mac_addr, 0, sizeof(mac_addr));
+ rd_mac_len = control_read(dev, REQUEST_READ, 0,
+ MAC_REG_STATION_L, mac_addr, 0x02,
+ CONTROL_TIMEOUT_MS);
+ rd_mac_len += control_read(dev, REQUEST_READ, 0, MAC_REG_STATION_M,
+ mac_addr + 2, 0x02, CONTROL_TIMEOUT_MS);
+ rd_mac_len += control_read(dev, REQUEST_READ, 0, MAC_REG_STATION_H,
+ mac_addr + 4, 0x02, CONTROL_TIMEOUT_MS);
+ if (rd_mac_len != ETH_ALEN)
+ err = -EINVAL;
+
+ data[0] = mac_addr[5];
+ data[1] = mac_addr[4];
+ data[2] = mac_addr[3];
+ data[3] = mac_addr[2];
+ data[4] = mac_addr[1];
+ data[5] = mac_addr[0];
+
+ return err;
+}
+
+static int ch9200_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int retval = 0;
+ unsigned char data[2];
+
+ retval = usbnet_get_endpoints(dev, intf);
+ if (retval)
+ return retval;
+
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = ch9200_mdio_read;
+ dev->mii.mdio_write = ch9200_mdio_write;
+ dev->mii.reg_num_mask = 0x1f;
+
+ dev->mii.phy_id_mask = 0x1f;
+
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+ dev->rx_urb_size = 24 * 64 + 16;
+ mii_nway_restart(&dev->mii);
+
+ data[0] = 0x01;
+ data[1] = 0x0F;
+ retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_THRESHOLD, data,
+ 0x02, CONTROL_TIMEOUT_MS);
+
+ data[0] = 0xA0;
+ data[1] = 0x90;
+ retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_FIFO_DEPTH, data,
+ 0x02, CONTROL_TIMEOUT_MS);
+
+ data[0] = 0x30;
+ data[1] = 0x00;
+ retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_PAUSE, data,
+ 0x02, CONTROL_TIMEOUT_MS);
+
+ data[0] = 0x17;
+ data[1] = 0xD8;
+ retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_FLOW_CONTROL,
+ data, 0x02, CONTROL_TIMEOUT_MS);
+
+ /* Undocumented register */
+ data[0] = 0x01;
+ data[1] = 0x00;
+ retval = control_write(dev, REQUEST_WRITE, 0, 254, data, 0x02,
+ CONTROL_TIMEOUT_MS);
+
+ data[0] = 0x5F;
+ data[1] = 0x0D;
+ retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_CTRL, data, 0x02,
+ CONTROL_TIMEOUT_MS);
+
+ retval = get_mac_address(dev, dev->net->dev_addr);
+
+ return retval;
+}
+
+static const struct driver_info ch9200_info = {
+ .description = "CH9200 USB to Network Adaptor",
+ .flags = FLAG_ETHER,
+ .bind = ch9200_bind,
+ .rx_fixup = ch9200_rx_fixup,
+ .tx_fixup = ch9200_tx_fixup,
+ .status = ch9200_status,
+ .link_reset = ch9200_link_reset,
+ .reset = ch9200_link_reset,
+};
+
+static const struct usb_device_id ch9200_products[] = {
+ {
+ USB_DEVICE(0x1A86, 0xE092),
+ .driver_info = (unsigned long)&ch9200_info,
+ },
+ {},
+};
+
+MODULE_DEVICE_TABLE(usb, ch9200_products);
+
+static struct usb_driver ch9200_driver = {
+ .name = "ch9200",
+ .id_table = ch9200_products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+};
+
+module_usb_driver(ch9200_driver);
+
+MODULE_DESCRIPTION("QinHeng CH9200 USB Network device");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
new file mode 100644
index 0000000..e221bfc
--- /dev/null
+++ b/drivers/net/usb/cx82310_eth.c
@@ -0,0 +1,353 @@
+/*
+ * Driver for USB ethernet port of Conexant CX82310-based ADSL routers
+ * Copyright (C) 2010 by Ondrej Zary
+ * some parts inspired by the cxacru driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+
+enum cx82310_cmd {
+ CMD_START = 0x84, /* no effect? */
+ CMD_STOP = 0x85, /* no effect? */
+ CMD_GET_STATUS = 0x90, /* returns nothing? */
+ CMD_GET_MAC_ADDR = 0x91, /* read MAC address */
+ CMD_GET_LINK_STATUS = 0x92, /* not useful, link is always up */
+ CMD_ETHERNET_MODE = 0x99, /* unknown, needed during init */
+};
+
+enum cx82310_status {
+ STATUS_UNDEFINED,
+ STATUS_SUCCESS,
+ STATUS_ERROR,
+ STATUS_UNSUPPORTED,
+ STATUS_UNIMPLEMENTED,
+ STATUS_PARAMETER_ERROR,
+ STATUS_DBG_LOOPBACK,
+};
+
+#define CMD_PACKET_SIZE 64
+#define CMD_TIMEOUT 100
+#define CMD_REPLY_RETRY 5
+
+#define CX82310_MTU 1514
+#define CMD_EP 0x01
+
+/*
+ * execute control command
+ * - optionally send some data (command parameters)
+ * - optionally wait for the reply
+ * - optionally read some data from the reply
+ */
+static int cx82310_cmd(struct usbnet *dev, enum cx82310_cmd cmd, bool reply,
+ u8 *wdata, int wlen, u8 *rdata, int rlen)
+{
+ int actual_len, retries, ret;
+ struct usb_device *udev = dev->udev;
+ u8 *buf = kzalloc(CMD_PACKET_SIZE, GFP_KERNEL);
+
+ if (!buf)
+ return -ENOMEM;
+
+ /* create command packet */
+ buf[0] = cmd;
+ if (wdata)
+ memcpy(buf + 4, wdata, min_t(int, wlen, CMD_PACKET_SIZE - 4));
+
+ /* send command packet */
+ ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, CMD_EP), buf,
+ CMD_PACKET_SIZE, &actual_len, CMD_TIMEOUT);
+ if (ret < 0) {
+ if (cmd != CMD_GET_LINK_STATUS)
+ dev_err(&dev->udev->dev, "send command %#x: error %d\n",
+ cmd, ret);
+ goto end;
+ }
+
+ if (reply) {
+ /* wait for reply, retry if it's empty */
+ for (retries = 0; retries < CMD_REPLY_RETRY; retries++) {
+ ret = usb_bulk_msg(udev, usb_rcvbulkpipe(udev, CMD_EP),
+ buf, CMD_PACKET_SIZE, &actual_len,
+ CMD_TIMEOUT);
+ if (ret < 0) {
+ if (cmd != CMD_GET_LINK_STATUS)
+ dev_err(&dev->udev->dev,
+ "reply receive error %d\n",
+ ret);
+ goto end;
+ }
+ if (actual_len > 0)
+ break;
+ }
+ if (actual_len == 0) {
+ dev_err(&dev->udev->dev, "no reply to command %#x\n",
+ cmd);
+ ret = -EIO;
+ goto end;
+ }
+ if (buf[0] != cmd) {
+ dev_err(&dev->udev->dev,
+ "got reply to command %#x, expected: %#x\n",
+ buf[0], cmd);
+ ret = -EIO;
+ goto end;
+ }
+ if (buf[1] != STATUS_SUCCESS) {
+ dev_err(&dev->udev->dev, "command %#x failed: %#x\n",
+ cmd, buf[1]);
+ ret = -EIO;
+ goto end;
+ }
+ if (rdata)
+ memcpy(rdata, buf + 4,
+ min_t(int, rlen, CMD_PACKET_SIZE - 4));
+ }
+end:
+ kfree(buf);
+ return ret;
+}
+
+#define partial_len data[0] /* length of partial packet data */
+#define partial_rem data[1] /* remaining (missing) data length */
+#define partial_data data[2] /* partial packet data */
+
+static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ char buf[15];
+ struct usb_device *udev = dev->udev;
+ u8 link[3];
+ int timeout = 50;
+
+ /* avoid ADSL modems - continue only if iProduct is "USB NET CARD" */
+ if (usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) > 0
+ && strcmp(buf, "USB NET CARD")) {
+ dev_info(&udev->dev, "ignoring: probably an ADSL modem\n");
+ return -ENODEV;
+ }
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret)
+ return ret;
+
+ /*
+ * this must not include ethernet header as the device can send partial
+ * packets with no header (and sometimes even empty URBs)
+ */
+ dev->net->hard_header_len = 0;
+ /* we can send at most 1514 bytes of data (+ 2-byte header) per URB */
+ dev->hard_mtu = CX82310_MTU + 2;
+ /* we can receive URBs up to 4KB from the device */
+ dev->rx_urb_size = 4096;
+
+ dev->partial_data = (unsigned long) kmalloc(dev->hard_mtu, GFP_KERNEL);
+ if (!dev->partial_data)
+ return -ENOMEM;
+
+ /* wait for firmware to become ready (indicated by the link being up) */
+ while (--timeout) {
+ ret = cx82310_cmd(dev, CMD_GET_LINK_STATUS, true, NULL, 0,
+ link, sizeof(link));
+ /* the command can time out during boot - it's not an error */
+ if (!ret && link[0] == 1 && link[2] == 1)
+ break;
+ msleep(500);
+ }
+ if (!timeout) {
+ dev_err(&udev->dev, "firmware not ready in time\n");
+ return -ETIMEDOUT;
+ }
+
+ /* enable ethernet mode (?) */
+ ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
+ if (ret) {
+ dev_err(&udev->dev, "unable to enable ethernet mode: %d\n",
+ ret);
+ goto err;
+ }
+
+ /* get the MAC address */
+ ret = cx82310_cmd(dev, CMD_GET_MAC_ADDR, true, NULL, 0,
+ dev->net->dev_addr, ETH_ALEN);
+ if (ret) {
+ dev_err(&udev->dev, "unable to read MAC address: %d\n", ret);
+ goto err;
+ }
+
+ /* start (does not seem to have any effect?) */
+ ret = cx82310_cmd(dev, CMD_START, false, NULL, 0, NULL, 0);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ kfree((void *)dev->partial_data);
+ return ret;
+}
+
+static void cx82310_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ kfree((void *)dev->partial_data);
+}
+
+/*
+ * RX is NOT easy - we can receive multiple packets per skb, each having 2-byte
+ * packet length at the beginning.
+ * The last packet might be incomplete (when it crosses the 4KB URB size),
+ * continuing in the next skb (without any headers).
+ * If a packet has odd length, there is one extra byte at the end (before next
+ * packet or at the end of the URB).
+ */
+static int cx82310_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int len;
+ struct sk_buff *skb2;
+
+ /*
+ * If the last skb ended with an incomplete packet, this skb contains
+ * end of that packet at the beginning.
+ */
+ if (dev->partial_rem) {
+ len = dev->partial_len + dev->partial_rem;
+ skb2 = alloc_skb(len, GFP_ATOMIC);
+ if (!skb2)
+ return 0;
+ skb_put(skb2, len);
+ memcpy(skb2->data, (void *)dev->partial_data,
+ dev->partial_len);
+ memcpy(skb2->data + dev->partial_len, skb->data,
+ dev->partial_rem);
+ usbnet_skb_return(dev, skb2);
+ skb_pull(skb, (dev->partial_rem + 1) & ~1);
+ dev->partial_rem = 0;
+ if (skb->len < 2)
+ return 1;
+ }
+
+ /* a skb can contain multiple packets */
+ while (skb->len > 1) {
+ /* first two bytes are packet length */
+ len = skb->data[0] | (skb->data[1] << 8);
+ skb_pull(skb, 2);
+
+ /* if last packet in the skb, let usbnet to process it */
+ if (len == skb->len || len + 1 == skb->len) {
+ skb_trim(skb, len);
+ break;
+ }
+
+ if (len > CX82310_MTU) {
+ dev_err(&dev->udev->dev, "RX packet too long: %d B\n",
+ len);
+ return 0;
+ }
+
+ /* incomplete packet, save it for the next skb */
+ if (len > skb->len) {
+ dev->partial_len = skb->len;
+ dev->partial_rem = len - skb->len;
+ memcpy((void *)dev->partial_data, skb->data,
+ dev->partial_len);
+ skb_pull(skb, skb->len);
+ break;
+ }
+
+ skb2 = alloc_skb(len, GFP_ATOMIC);
+ if (!skb2)
+ return 0;
+ skb_put(skb2, len);
+ memcpy(skb2->data, skb->data, len);
+ /* process the packet */
+ usbnet_skb_return(dev, skb2);
+
+ skb_pull(skb, (len + 1) & ~1);
+ }
+
+ /* let usbnet process the last packet */
+ return 1;
+}
+
+/* TX is easy, just add 2 bytes of length at the beginning */
+static struct sk_buff *cx82310_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int len = skb->len;
+
+ if (skb_headroom(skb) < 2) {
+ struct sk_buff *skb2 = skb_copy_expand(skb, 2, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+ skb_push(skb, 2);
+
+ skb->data[0] = len;
+ skb->data[1] = len >> 8;
+
+ return skb;
+}
+
+
+static const struct driver_info cx82310_info = {
+ .description = "Conexant CX82310 USB ethernet",
+ .flags = FLAG_ETHER,
+ .bind = cx82310_bind,
+ .unbind = cx82310_unbind,
+ .rx_fixup = cx82310_rx_fixup,
+ .tx_fixup = cx82310_tx_fixup,
+};
+
+#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_DEV_INFO, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bDeviceClass = (cl), \
+ .bDeviceSubClass = (sc), \
+ .bDeviceProtocol = (pr)
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0),
+ .driver_info = (unsigned long) &cx82310_info
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver cx82310_driver = {
+ .name = "cx82310_eth",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(cx82310_driver);
+
+MODULE_AUTHOR("Ondrej Zary");
+MODULE_DESCRIPTION("Conexant CX82310-based ADSL router USB ethernet driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
new file mode 100644
index 0000000..0b4bdd3
--- /dev/null
+++ b/drivers/net/usb/dm9601.c
@@ -0,0 +1,646 @@
+/*
+ * Davicom DM96xx USB 10/100Mbps ethernet devices
+ *
+ * Peter Korsgaard <jacmet@sunsite.dk>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+//#define DEBUG
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/stddef.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+
+/* datasheet:
+ http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
+*/
+
+/* control requests */
+#define DM_READ_REGS 0x00
+#define DM_WRITE_REGS 0x01
+#define DM_READ_MEMS 0x02
+#define DM_WRITE_REG 0x03
+#define DM_WRITE_MEMS 0x05
+#define DM_WRITE_MEM 0x07
+
+/* registers */
+#define DM_NET_CTRL 0x00
+#define DM_RX_CTRL 0x05
+#define DM_SHARED_CTRL 0x0b
+#define DM_SHARED_ADDR 0x0c
+#define DM_SHARED_DATA 0x0d /* low + high */
+#define DM_PHY_ADDR 0x10 /* 6 bytes */
+#define DM_MCAST_ADDR 0x16 /* 8 bytes */
+#define DM_GPR_CTRL 0x1e
+#define DM_GPR_DATA 0x1f
+#define DM_CHIP_ID 0x2c
+#define DM_MODE_CTRL 0x91 /* only on dm9620 */
+
+/* chip id values */
+#define ID_DM9601 0
+#define ID_DM9620 1
+
+#define DM_MAX_MCAST 64
+#define DM_MCAST_SIZE 8
+#define DM_EEPROM_LEN 256
+#define DM_TX_OVERHEAD 2 /* 2 byte header */
+#define DM_RX_OVERHEAD 7 /* 3 byte header + 4 byte crc tail */
+#define DM_TIMEOUT 1000
+
+static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ int err;
+ err = usbnet_read_cmd(dev, DM_READ_REGS,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, reg, data, length);
+ if(err != length && err >= 0)
+ err = -EINVAL;
+ return err;
+}
+
+static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
+{
+ return dm_read(dev, reg, 1, value);
+}
+
+static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ int err;
+ err = usbnet_write_cmd(dev, DM_WRITE_REGS,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, reg, data, length);
+
+ if (err >= 0 && err < length)
+ err = -EINVAL;
+ return err;
+}
+
+static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
+{
+ return usbnet_write_cmd(dev, DM_WRITE_REG,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, reg, NULL, 0);
+}
+
+static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ usbnet_write_cmd_async(dev, DM_WRITE_REGS,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, reg, data, length);
+}
+
+static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
+{
+ usbnet_write_cmd_async(dev, DM_WRITE_REG,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, reg, NULL, 0);
+}
+
+static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value)
+{
+ int ret, i;
+
+ mutex_lock(&dev->phy_mutex);
+
+ dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
+ dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
+
+ for (i = 0; i < DM_TIMEOUT; i++) {
+ u8 tmp = 0;
+
+ udelay(1);
+ ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
+ if (ret < 0)
+ goto out;
+
+ /* ready */
+ if ((tmp & 1) == 0)
+ break;
+ }
+
+ if (i == DM_TIMEOUT) {
+ netdev_err(dev->net, "%s read timed out!\n", phy ? "phy" : "eeprom");
+ ret = -EIO;
+ goto out;
+ }
+
+ dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
+ ret = dm_read(dev, DM_SHARED_DATA, 2, value);
+
+ netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
+ phy, reg, *value, ret);
+
+ out:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
+{
+ int ret, i;
+
+ mutex_lock(&dev->phy_mutex);
+
+ ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
+ if (ret < 0)
+ goto out;
+
+ dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
+ dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12);
+
+ for (i = 0; i < DM_TIMEOUT; i++) {
+ u8 tmp = 0;
+
+ udelay(1);
+ ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
+ if (ret < 0)
+ goto out;
+
+ /* ready */
+ if ((tmp & 1) == 0)
+ break;
+ }
+
+ if (i == DM_TIMEOUT) {
+ netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
+ ret = -EIO;
+ goto out;
+ }
+
+ dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
+
+out:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
+{
+ return dm_read_shared_word(dev, 0, offset, value);
+}
+
+
+
+static int dm9601_get_eeprom_len(struct net_device *dev)
+{
+ return DM_EEPROM_LEN;
+}
+
+static int dm9601_get_eeprom(struct net_device *net,
+ struct ethtool_eeprom *eeprom, u8 * data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ __le16 *ebuf = (__le16 *) data;
+ int i;
+
+ /* access is 16bit */
+ if ((eeprom->offset % 2) || (eeprom->len % 2))
+ return -EINVAL;
+
+ for (i = 0; i < eeprom->len / 2; i++) {
+ if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
+ &ebuf[i]) < 0)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ __le16 res;
+
+ if (phy_id) {
+ netdev_dbg(dev->net, "Only internal phy supported\n");
+ return 0;
+ }
+
+ dm_read_shared_word(dev, 1, loc, &res);
+
+ netdev_dbg(dev->net,
+ "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
+ phy_id, loc, le16_to_cpu(res));
+
+ return le16_to_cpu(res);
+}
+
+static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc,
+ int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 res = cpu_to_le16(val);
+
+ if (phy_id) {
+ netdev_dbg(dev->net, "Only internal phy supported\n");
+ return;
+ }
+
+ netdev_dbg(dev->net, "dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
+ phy_id, loc, val);
+
+ dm_write_shared_word(dev, 1, loc, res);
+}
+
+static void dm9601_get_drvinfo(struct net_device *net,
+ struct ethtool_drvinfo *info)
+{
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+}
+
+static u32 dm9601_get_link(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return mii_link_ok(&dev->mii);
+}
+
+static int dm9601_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static const struct ethtool_ops dm9601_ethtool_ops = {
+ .get_drvinfo = dm9601_get_drvinfo,
+ .get_link = dm9601_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_eeprom_len = dm9601_get_eeprom_len,
+ .get_eeprom = dm9601_get_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static void dm9601_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ /* We use the 20 byte dev->data for our 8 byte filter buffer
+ * to avoid allocating memory that is tricky to free later */
+ u8 *hashes = (u8 *) & dev->data;
+ u8 rx_ctl = 0x31;
+
+ memset(hashes, 0x00, DM_MCAST_SIZE);
+ hashes[DM_MCAST_SIZE - 1] |= 0x80; /* broadcast address */
+
+ if (net->flags & IFF_PROMISC) {
+ rx_ctl |= 0x02;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > DM_MAX_MCAST) {
+ rx_ctl |= 0x08;
+ } else if (!netdev_mc_empty(net)) {
+ struct netdev_hw_addr *ha;
+
+ netdev_for_each_mc_addr(ha, net) {
+ u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ hashes[crc >> 3] |= 1 << (crc & 0x7);
+ }
+ }
+
+ dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
+ dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
+}
+
+static void __dm9601_set_mac_address(struct usbnet *dev)
+{
+ dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
+}
+
+static int dm9601_set_mac_address(struct net_device *net, void *p)
+{
+ struct sockaddr *addr = p;
+ struct usbnet *dev = netdev_priv(net);
+
+ if (!is_valid_ether_addr(addr->sa_data)) {
+ dev_err(&net->dev, "not setting invalid mac address %pM\n",
+ addr->sa_data);
+ return -EINVAL;
+ }
+
+ memcpy(net->dev_addr, addr->sa_data, net->addr_len);
+ __dm9601_set_mac_address(dev);
+
+ return 0;
+}
+
+static const struct net_device_ops dm9601_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = dm9601_ioctl,
+ .ndo_set_rx_mode = dm9601_set_multicast,
+ .ndo_set_mac_address = dm9601_set_mac_address,
+};
+
+static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ u8 mac[ETH_ALEN], id;
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret)
+ goto out;
+
+ dev->net->netdev_ops = &dm9601_netdev_ops;
+ dev->net->ethtool_ops = &dm9601_ethtool_ops;
+ dev->net->hard_header_len += DM_TX_OVERHEAD;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+ /* dm9620/21a require room for 4 byte padding, even in dm9601
+ * mode, so we need +1 to be able to receive full size
+ * ethernet frames.
+ */
+ dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1;
+
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = dm9601_mdio_read;
+ dev->mii.mdio_write = dm9601_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+
+ /* reset */
+ dm_write_reg(dev, DM_NET_CTRL, 1);
+ udelay(20);
+
+ /* read MAC */
+ if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
+ printk(KERN_ERR "Error reading MAC address\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /*
+ * Overwrite the auto-generated address only with good ones.
+ */
+ if (is_valid_ether_addr(mac))
+ memcpy(dev->net->dev_addr, mac, ETH_ALEN);
+ else {
+ printk(KERN_WARNING
+ "dm9601: No valid MAC address in EEPROM, using %pM\n",
+ dev->net->dev_addr);
+ __dm9601_set_mac_address(dev);
+ }
+
+ if (dm_read_reg(dev, DM_CHIP_ID, &id) < 0) {
+ netdev_err(dev->net, "Error reading chip ID\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /* put dm9620 devices in dm9601 mode */
+ if (id == ID_DM9620) {
+ u8 mode;
+
+ if (dm_read_reg(dev, DM_MODE_CTRL, &mode) < 0) {
+ netdev_err(dev->net, "Error reading MODE_CTRL\n");
+ ret = -ENODEV;
+ goto out;
+ }
+ dm_write_reg(dev, DM_MODE_CTRL, mode & 0x7f);
+ }
+
+ /* power up phy */
+ dm_write_reg(dev, DM_GPR_CTRL, 1);
+ dm_write_reg(dev, DM_GPR_DATA, 0);
+
+ /* receive broadcast packets */
+ dm9601_set_multicast(dev->net);
+
+ dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+ dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
+ mii_nway_restart(&dev->mii);
+
+out:
+ return ret;
+}
+
+static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ u8 status;
+ int len;
+
+ /* format:
+ b1: rx status
+ b2: packet length (incl crc) low
+ b3: packet length (incl crc) high
+ b4..n-4: packet data
+ bn-3..bn: ethernet crc
+ */
+
+ if (unlikely(skb->len < DM_RX_OVERHEAD)) {
+ dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
+ return 0;
+ }
+
+ status = skb->data[0];
+ len = (skb->data[1] | (skb->data[2] << 8)) - 4;
+
+ if (unlikely(status & 0xbf)) {
+ if (status & 0x01) dev->net->stats.rx_fifo_errors++;
+ if (status & 0x02) dev->net->stats.rx_crc_errors++;
+ if (status & 0x04) dev->net->stats.rx_frame_errors++;
+ if (status & 0x20) dev->net->stats.rx_missed_errors++;
+ if (status & 0x90) dev->net->stats.rx_length_errors++;
+ return 0;
+ }
+
+ skb_pull(skb, 3);
+ skb_trim(skb, len);
+
+ return 1;
+}
+
+static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int len, pad;
+
+ /* format:
+ b1: packet length low
+ b2: packet length high
+ b3..n: packet data
+ */
+
+ len = skb->len + DM_TX_OVERHEAD;
+
+ /* workaround for dm962x errata with tx fifo getting out of
+ * sync if a USB bulk transfer retry happens right after a
+ * packet with odd / maxpacket length by adding up to 3 bytes
+ * padding.
+ */
+ while ((len & 1) || !(len % dev->maxpacket))
+ len++;
+
+ len -= DM_TX_OVERHEAD; /* hw header doesn't count as part of length */
+ pad = len - skb->len;
+
+ if (skb_headroom(skb) < DM_TX_OVERHEAD || skb_tailroom(skb) < pad) {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, pad, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ __skb_push(skb, DM_TX_OVERHEAD);
+
+ if (pad) {
+ memset(skb->data + skb->len, 0, pad);
+ __skb_put(skb, pad);
+ }
+
+ skb->data[0] = len;
+ skb->data[1] = len >> 8;
+
+ return skb;
+}
+
+static void dm9601_status(struct usbnet *dev, struct urb *urb)
+{
+ int link;
+ u8 *buf;
+
+ /* format:
+ b0: net status
+ b1: tx status 1
+ b2: tx status 2
+ b3: rx status
+ b4: rx overflow
+ b5: rx count
+ b6: tx count
+ b7: gpr
+ */
+
+ if (urb->actual_length < 8)
+ return;
+
+ buf = urb->transfer_buffer;
+
+ link = !!(buf[0] & 0x40);
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+}
+
+static int dm9601_link_reset(struct usbnet *dev)
+{
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+
+ netdev_dbg(dev->net, "link_reset() speed: %u duplex: %d\n",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex);
+
+ return 0;
+}
+
+static const struct driver_info dm9601_info = {
+ .description = "Davicom DM96xx USB 10/100 Ethernet",
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .bind = dm9601_bind,
+ .rx_fixup = dm9601_rx_fixup,
+ .tx_fixup = dm9601_tx_fixup,
+ .status = dm9601_status,
+ .link_reset = dm9601_link_reset,
+ .reset = dm9601_link_reset,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE(0x07aa, 0x9601), /* Corega FEther USB-TXC */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x9601), /* Davicom USB-100 */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x6688), /* ZT6688 USB NIC */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x0268), /* ShanTou ST268 USB NIC */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x8515), /* ADMtek ADM8515 USB NIC */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a47, 0x9601), /* Hirose USB-100 */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0fe6, 0x8101), /* DM9601 USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0fe6, 0x9700), /* DM9601 USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x9000), /* DM9000E */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x9620), /* DM9620 USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x9621), /* DM9621A USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x9622), /* DM9622 USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x0269), /* DM962OA USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {
+ USB_DEVICE(0x0a46, 0x1269), /* DM9621A USB to Fast Ethernet Adapter */
+ .driver_info = (unsigned long)&dm9601_info,
+ },
+ {}, // END
+};
+
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver dm9601_driver = {
+ .name = "dm9601",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(dm9601_driver);
+
+MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
+MODULE_DESCRIPTION("Davicom DM96xx USB 10/100 ethernet devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c
new file mode 100644
index 0000000..1cc24e6
--- /dev/null
+++ b/drivers/net/usb/gl620a.c
@@ -0,0 +1,242 @@
+/*
+ * GeneSys GL620USB-A based links
+ * Copyright (C) 2001 by Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
+ * Copyright (C) 2001 by Stanislav Brabec <utx@penguin.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+#include <linux/gfp.h>
+
+
+/*
+ * GeneSys GL620USB-A (www.genesyslogic.com.tw)
+ *
+ * ... should partially interop with the Win32 driver for this hardware.
+ * The GeneSys docs imply there's some NDIS issue motivating this framing.
+ *
+ * Some info from GeneSys:
+ * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk.
+ * (Some cables, like the BAFO-100c, use the half duplex version.)
+ * - For the full duplex model, the low bit of the version code says
+ * which side is which ("left/right").
+ * - For the half duplex type, a control/interrupt handshake settles
+ * the transfer direction. (That's disabled here, partially coded.)
+ * A control URB would block until other side writes an interrupt.
+ *
+ * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
+ * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>.
+ */
+
+// control msg write command
+#define GENELINK_CONNECT_WRITE 0xF0
+// interrupt pipe index
+#define GENELINK_INTERRUPT_PIPE 0x03
+// interrupt read buffer size
+#define INTERRUPT_BUFSIZE 0x08
+// interrupt pipe interval value
+#define GENELINK_INTERRUPT_INTERVAL 0x10
+// max transmit packet number per transmit
+#define GL_MAX_TRANSMIT_PACKETS 32
+// max packet length
+#define GL_MAX_PACKET_LEN 1514
+// max receive buffer size
+#define GL_RCV_BUF_SIZE \
+ (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4)
+
+struct gl_packet {
+ __le32 packet_length;
+ char packet_data [1];
+};
+
+struct gl_header {
+ __le32 packet_count;
+ struct gl_packet packets;
+};
+
+static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct gl_header *header;
+ struct gl_packet *packet;
+ struct sk_buff *gl_skb;
+ u32 size;
+ u32 count;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ header = (struct gl_header *) skb->data;
+
+ // get the packet count of the received skb
+ count = le32_to_cpu(header->packet_count);
+ if (count > GL_MAX_TRANSMIT_PACKETS) {
+ netdev_dbg(dev->net,
+ "genelink: invalid received packet count %u\n",
+ count);
+ return 0;
+ }
+
+ // set the current packet pointer to the first packet
+ packet = &header->packets;
+
+ // decrement the length for the packet count size 4 bytes
+ skb_pull(skb, 4);
+
+ while (count > 1) {
+ // get the packet length
+ size = le32_to_cpu(packet->packet_length);
+
+ // this may be a broken packet
+ if (size > GL_MAX_PACKET_LEN) {
+ netdev_dbg(dev->net, "genelink: invalid rx length %d\n",
+ size);
+ return 0;
+ }
+
+ // allocate the skb for the individual packet
+ gl_skb = alloc_skb(size, GFP_ATOMIC);
+ if (gl_skb) {
+
+ // copy the packet data to the new skb
+ memcpy(skb_put(gl_skb, size),
+ packet->packet_data, size);
+ usbnet_skb_return(dev, gl_skb);
+ }
+
+ // advance to the next packet
+ packet = (struct gl_packet *)&packet->packet_data[size];
+ count--;
+
+ // shift the data pointer to the next gl_packet
+ skb_pull(skb, size + 4);
+ }
+
+ // skip the packet length field 4 bytes
+ skb_pull(skb, 4);
+
+ if (skb->len > GL_MAX_PACKET_LEN) {
+ netdev_dbg(dev->net, "genelink: invalid rx length %d\n",
+ skb->len);
+ return 0;
+ }
+ return 1;
+}
+
+static struct sk_buff *
+genelink_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ int padlen;
+ int length = skb->len;
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+ __le32 *packet_count;
+ __le32 *packet_len;
+
+ // FIXME: magic numbers, bleech
+ padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1;
+
+ if ((!skb_cloned(skb))
+ && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) {
+ if ((headroom < (4 + 4*1)) || (tailroom < padlen)) {
+ skb->data = memmove(skb->head + (4 + 4*1),
+ skb->data, skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ }
+ } else {
+ struct sk_buff *skb2;
+ skb2 = skb_copy_expand(skb, (4 + 4*1) , padlen, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ // attach the packet count to the header
+ packet_count = (__le32 *) skb_push(skb, (4 + 4*1));
+ packet_len = packet_count + 1;
+
+ *packet_count = cpu_to_le32(1);
+ *packet_len = cpu_to_le32(length);
+
+ // add padding byte
+ if ((skb->len % dev->maxpacket) == 0)
+ skb_put(skb, 1);
+
+ return skb;
+}
+
+static int genelink_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ dev->hard_mtu = GL_RCV_BUF_SIZE;
+ dev->net->hard_header_len += 4;
+ dev->in = usb_rcvbulkpipe(dev->udev, dev->driver_info->in);
+ dev->out = usb_sndbulkpipe(dev->udev, dev->driver_info->out);
+ return 0;
+}
+
+static const struct driver_info genelink_info = {
+ .description = "Genesys GeneLink",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_GL | FLAG_NO_SETINT,
+ .bind = genelink_bind,
+ .rx_fixup = genelink_rx_fixup,
+ .tx_fixup = genelink_tx_fixup,
+
+ .in = 1, .out = 2,
+
+#ifdef GENELINK_ACK
+ .check_connect =genelink_check_connect,
+#endif
+};
+
+static const struct usb_device_id products [] = {
+
+{
+ USB_DEVICE(0x05e3, 0x0502), // GL620USB-A
+ .driver_info = (unsigned long) &genelink_info,
+},
+ /* NOT: USB_DEVICE(0x05e3, 0x0501), // GL620USB
+ * that's half duplex, not currently supported
+ */
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver gl620a_driver = {
+ .name = "gl620a",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(gl620a_driver);
+
+MODULE_AUTHOR("Jiun-Jie Huang");
+MODULE_DESCRIPTION("GL620-USB-A Host-to-Host Link cables");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
new file mode 100644
index 0000000..111d907
--- /dev/null
+++ b/drivers/net/usb/hso.c
@@ -0,0 +1,3323 @@
+/******************************************************************************
+ *
+ * Driver for Option High Speed Mobile Devices.
+ *
+ * Copyright (C) 2008 Option International
+ * Filip Aben <f.aben@option.com>
+ * Denis Joseph Barrow <d.barow@option.com>
+ * Jan Dumon <j.dumon@option.com>
+ * Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd)
+ * <ajb@spheresystems.co.uk>
+ * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (C) 2008 Novell, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA
+ *
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * Description of the device:
+ *
+ * Interface 0: Contains the IP network interface on the bulk end points.
+ * The multiplexed serial ports are using the interrupt and
+ * control endpoints.
+ * Interrupt contains a bitmap telling which multiplexed
+ * serialport needs servicing.
+ *
+ * Interface 1: Diagnostics port, uses bulk only, do not submit urbs until the
+ * port is opened, as this have a huge impact on the network port
+ * throughput.
+ *
+ * Interface 2: Standard modem interface - circuit switched interface, this
+ * can be used to make a standard ppp connection however it
+ * should not be used in conjunction with the IP network interface
+ * enabled for USB performance reasons i.e. if using this set
+ * ideally disable_net=1.
+ *
+ *****************************************************************************/
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/kmod.h>
+#include <linux/rfkill.h>
+#include <linux/ip.h>
+#include <linux/uaccess.h>
+#include <linux/usb/cdc.h>
+#include <net/arp.h>
+#include <asm/byteorder.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+
+
+#define MOD_AUTHOR "Option Wireless"
+#define MOD_DESCRIPTION "USB High Speed Option driver"
+#define MOD_LICENSE "GPL"
+
+#define HSO_MAX_NET_DEVICES 10
+#define HSO__MAX_MTU 2048
+#define DEFAULT_MTU 1500
+#define DEFAULT_MRU 1500
+
+#define CTRL_URB_RX_SIZE 1024
+#define CTRL_URB_TX_SIZE 64
+
+#define BULK_URB_RX_SIZE 4096
+#define BULK_URB_TX_SIZE 8192
+
+#define MUX_BULK_RX_BUF_SIZE HSO__MAX_MTU
+#define MUX_BULK_TX_BUF_SIZE HSO__MAX_MTU
+#define MUX_BULK_RX_BUF_COUNT 4
+#define USB_TYPE_OPTION_VENDOR 0x20
+
+/* These definitions are used with the struct hso_net flags element */
+/* - use *_bit operations on it. (bit indices not values.) */
+#define HSO_NET_RUNNING 0
+
+#define HSO_NET_TX_TIMEOUT (HZ*10)
+
+#define HSO_SERIAL_MAGIC 0x48534f31
+
+/* Number of ttys to handle */
+#define HSO_SERIAL_TTY_MINORS 256
+
+#define MAX_RX_URBS 2
+
+/*****************************************************************************/
+/* Debugging functions */
+/*****************************************************************************/
+#define D__(lvl_, fmt, arg...) \
+ do { \
+ printk(lvl_ "[%d:%s]: " fmt "\n", \
+ __LINE__, __func__, ## arg); \
+ } while (0)
+
+#define D_(lvl, args...) \
+ do { \
+ if (lvl & debug) \
+ D__(KERN_INFO, args); \
+ } while (0)
+
+#define D1(args...) D_(0x01, ##args)
+#define D2(args...) D_(0x02, ##args)
+#define D3(args...) D_(0x04, ##args)
+#define D4(args...) D_(0x08, ##args)
+#define D5(args...) D_(0x10, ##args)
+
+/*****************************************************************************/
+/* Enumerators */
+/*****************************************************************************/
+enum pkt_parse_state {
+ WAIT_IP,
+ WAIT_DATA,
+ WAIT_SYNC
+};
+
+/*****************************************************************************/
+/* Structs */
+/*****************************************************************************/
+
+struct hso_shared_int {
+ struct usb_endpoint_descriptor *intr_endp;
+ void *shared_intr_buf;
+ struct urb *shared_intr_urb;
+ struct usb_device *usb;
+ int use_count;
+ int ref_count;
+ struct mutex shared_int_lock;
+};
+
+struct hso_net {
+ struct hso_device *parent;
+ struct net_device *net;
+ struct rfkill *rfkill;
+ char name[24];
+
+ struct usb_endpoint_descriptor *in_endp;
+ struct usb_endpoint_descriptor *out_endp;
+
+ struct urb *mux_bulk_rx_urb_pool[MUX_BULK_RX_BUF_COUNT];
+ struct urb *mux_bulk_tx_urb;
+ void *mux_bulk_rx_buf_pool[MUX_BULK_RX_BUF_COUNT];
+ void *mux_bulk_tx_buf;
+
+ struct sk_buff *skb_rx_buf;
+ struct sk_buff *skb_tx_buf;
+
+ enum pkt_parse_state rx_parse_state;
+ spinlock_t net_lock;
+
+ unsigned short rx_buf_size;
+ unsigned short rx_buf_missing;
+ struct iphdr rx_ip_hdr;
+
+ unsigned long flags;
+};
+
+enum rx_ctrl_state{
+ RX_IDLE,
+ RX_SENT,
+ RX_PENDING
+};
+
+#define BM_REQUEST_TYPE (0xa1)
+#define B_NOTIFICATION (0x20)
+#define W_VALUE (0x0)
+#define W_LENGTH (0x2)
+
+#define B_OVERRUN (0x1<<6)
+#define B_PARITY (0x1<<5)
+#define B_FRAMING (0x1<<4)
+#define B_RING_SIGNAL (0x1<<3)
+#define B_BREAK (0x1<<2)
+#define B_TX_CARRIER (0x1<<1)
+#define B_RX_CARRIER (0x1<<0)
+
+struct hso_serial_state_notification {
+ u8 bmRequestType;
+ u8 bNotification;
+ u16 wValue;
+ u16 wIndex;
+ u16 wLength;
+ u16 UART_state_bitmap;
+} __packed;
+
+struct hso_tiocmget {
+ struct mutex mutex;
+ wait_queue_head_t waitq;
+ int intr_completed;
+ struct usb_endpoint_descriptor *endp;
+ struct urb *urb;
+ struct hso_serial_state_notification serial_state_notification;
+ u16 prev_UART_state_bitmap;
+ struct uart_icount icount;
+};
+
+
+struct hso_serial {
+ struct hso_device *parent;
+ int magic;
+ u8 minor;
+
+ struct hso_shared_int *shared_int;
+
+ /* rx/tx urb could be either a bulk urb or a control urb depending
+ on which serial port it is used on. */
+ struct urb *rx_urb[MAX_RX_URBS];
+ u8 num_rx_urbs;
+ u8 *rx_data[MAX_RX_URBS];
+ u16 rx_data_length; /* should contain allocated length */
+
+ struct urb *tx_urb;
+ u8 *tx_data;
+ u8 *tx_buffer;
+ u16 tx_data_length; /* should contain allocated length */
+ u16 tx_data_count;
+ u16 tx_buffer_count;
+ struct usb_ctrlrequest ctrl_req_tx;
+ struct usb_ctrlrequest ctrl_req_rx;
+
+ struct usb_endpoint_descriptor *in_endp;
+ struct usb_endpoint_descriptor *out_endp;
+
+ enum rx_ctrl_state rx_state;
+ u8 rts_state;
+ u8 dtr_state;
+ unsigned tx_urb_used:1;
+
+ struct tty_port port;
+ /* from usb_serial_port */
+ spinlock_t serial_lock;
+
+ int (*write_data) (struct hso_serial *serial);
+ struct hso_tiocmget *tiocmget;
+ /* Hacks required to get flow control
+ * working on the serial receive buffers
+ * so as not to drop characters on the floor.
+ */
+ int curr_rx_urb_idx;
+ u8 rx_urb_filled[MAX_RX_URBS];
+ struct tasklet_struct unthrottle_tasklet;
+};
+
+struct hso_device {
+ union {
+ struct hso_serial *dev_serial;
+ struct hso_net *dev_net;
+ } port_data;
+
+ u32 port_spec;
+
+ u8 is_active;
+ u8 usb_gone;
+ struct work_struct async_get_intf;
+ struct work_struct async_put_intf;
+
+ struct usb_device *usb;
+ struct usb_interface *interface;
+
+ struct device *dev;
+ struct kref ref;
+ struct mutex mutex;
+};
+
+/* Type of interface */
+#define HSO_INTF_MASK 0xFF00
+#define HSO_INTF_MUX 0x0100
+#define HSO_INTF_BULK 0x0200
+
+/* Type of port */
+#define HSO_PORT_MASK 0xFF
+#define HSO_PORT_NO_PORT 0x0
+#define HSO_PORT_CONTROL 0x1
+#define HSO_PORT_APP 0x2
+#define HSO_PORT_GPS 0x3
+#define HSO_PORT_PCSC 0x4
+#define HSO_PORT_APP2 0x5
+#define HSO_PORT_GPS_CONTROL 0x6
+#define HSO_PORT_MSD 0x7
+#define HSO_PORT_VOICE 0x8
+#define HSO_PORT_DIAG2 0x9
+#define HSO_PORT_DIAG 0x10
+#define HSO_PORT_MODEM 0x11
+#define HSO_PORT_NETWORK 0x12
+
+/* Additional device info */
+#define HSO_INFO_MASK 0xFF000000
+#define HSO_INFO_CRC_BUG 0x01000000
+
+/*****************************************************************************/
+/* Prototypes */
+/*****************************************************************************/
+/* Serial driver functions */
+static int hso_serial_tiocmset(struct tty_struct *tty,
+ unsigned int set, unsigned int clear);
+static void ctrl_callback(struct urb *urb);
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
+static void hso_kick_transmit(struct hso_serial *serial);
+/* Helper functions */
+static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int,
+ struct usb_device *usb, gfp_t gfp);
+static void handle_usb_error(int status, const char *function,
+ struct hso_device *hso_dev);
+static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
+ int type, int dir);
+static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports);
+static void hso_free_interface(struct usb_interface *intf);
+static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags);
+static int hso_stop_serial_device(struct hso_device *hso_dev);
+static int hso_start_net_device(struct hso_device *hso_dev);
+static void hso_free_shared_int(struct hso_shared_int *shared_int);
+static int hso_stop_net_device(struct hso_device *hso_dev);
+static void hso_serial_ref_free(struct kref *ref);
+static void hso_std_serial_read_bulk_callback(struct urb *urb);
+static int hso_mux_serial_read(struct hso_serial *serial);
+static void async_get_intf(struct work_struct *data);
+static void async_put_intf(struct work_struct *data);
+static int hso_put_activity(struct hso_device *hso_dev);
+static int hso_get_activity(struct hso_device *hso_dev);
+static void tiocmget_intr_callback(struct urb *urb);
+/*****************************************************************************/
+/* Helping functions */
+/*****************************************************************************/
+
+/* #define DEBUG */
+
+static inline struct hso_net *dev2net(struct hso_device *hso_dev)
+{
+ return hso_dev->port_data.dev_net;
+}
+
+static inline struct hso_serial *dev2ser(struct hso_device *hso_dev)
+{
+ return hso_dev->port_data.dev_serial;
+}
+
+/* Debugging functions */
+#ifdef DEBUG
+static void dbg_dump(int line_count, const char *func_name, unsigned char *buf,
+ unsigned int len)
+{
+ static char name[255];
+
+ sprintf(name, "hso[%d:%s]", line_count, func_name);
+ print_hex_dump_bytes(name, DUMP_PREFIX_NONE, buf, len);
+}
+
+#define DUMP(buf_, len_) \
+ dbg_dump(__LINE__, __func__, (unsigned char *)buf_, len_)
+
+#define DUMP1(buf_, len_) \
+ do { \
+ if (0x01 & debug) \
+ DUMP(buf_, len_); \
+ } while (0)
+#else
+#define DUMP(buf_, len_)
+#define DUMP1(buf_, len_)
+#endif
+
+/* module parameters */
+static int debug;
+static int tty_major;
+static int disable_net;
+
+/* driver info */
+static const char driver_name[] = "hso";
+static const char tty_filename[] = "ttyHS";
+static const char *version = __FILE__ ": " MOD_AUTHOR;
+/* the usb driver itself (registered in hso_init) */
+static struct usb_driver hso_driver;
+/* serial structures */
+static struct tty_driver *tty_drv;
+static struct hso_device *serial_table[HSO_SERIAL_TTY_MINORS];
+static struct hso_device *network_table[HSO_MAX_NET_DEVICES];
+static spinlock_t serial_table_lock;
+
+static const s32 default_port_spec[] = {
+ HSO_INTF_MUX | HSO_PORT_NETWORK,
+ HSO_INTF_BULK | HSO_PORT_DIAG,
+ HSO_INTF_BULK | HSO_PORT_MODEM,
+ 0
+};
+
+static const s32 icon321_port_spec[] = {
+ HSO_INTF_MUX | HSO_PORT_NETWORK,
+ HSO_INTF_BULK | HSO_PORT_DIAG2,
+ HSO_INTF_BULK | HSO_PORT_MODEM,
+ HSO_INTF_BULK | HSO_PORT_DIAG,
+ 0
+};
+
+#define default_port_device(vendor, product) \
+ USB_DEVICE(vendor, product), \
+ .driver_info = (kernel_ulong_t)default_port_spec
+
+#define icon321_port_device(vendor, product) \
+ USB_DEVICE(vendor, product), \
+ .driver_info = (kernel_ulong_t)icon321_port_spec
+
+/* list of devices we support */
+static const struct usb_device_id hso_ids[] = {
+ {default_port_device(0x0af0, 0x6711)},
+ {default_port_device(0x0af0, 0x6731)},
+ {default_port_device(0x0af0, 0x6751)},
+ {default_port_device(0x0af0, 0x6771)},
+ {default_port_device(0x0af0, 0x6791)},
+ {default_port_device(0x0af0, 0x6811)},
+ {default_port_device(0x0af0, 0x6911)},
+ {default_port_device(0x0af0, 0x6951)},
+ {default_port_device(0x0af0, 0x6971)},
+ {default_port_device(0x0af0, 0x7011)},
+ {default_port_device(0x0af0, 0x7031)},
+ {default_port_device(0x0af0, 0x7051)},
+ {default_port_device(0x0af0, 0x7071)},
+ {default_port_device(0x0af0, 0x7111)},
+ {default_port_device(0x0af0, 0x7211)},
+ {default_port_device(0x0af0, 0x7251)},
+ {default_port_device(0x0af0, 0x7271)},
+ {default_port_device(0x0af0, 0x7311)},
+ {default_port_device(0x0af0, 0xc031)}, /* Icon-Edge */
+ {icon321_port_device(0x0af0, 0xd013)}, /* Module HSxPA */
+ {icon321_port_device(0x0af0, 0xd031)}, /* Icon-321 */
+ {icon321_port_device(0x0af0, 0xd033)}, /* Icon-322 */
+ {USB_DEVICE(0x0af0, 0x7301)}, /* GE40x */
+ {USB_DEVICE(0x0af0, 0x7361)}, /* GE40x */
+ {USB_DEVICE(0x0af0, 0x7381)}, /* GE40x */
+ {USB_DEVICE(0x0af0, 0x7401)}, /* GI 0401 */
+ {USB_DEVICE(0x0af0, 0x7501)}, /* GTM 382 */
+ {USB_DEVICE(0x0af0, 0x7601)}, /* GE40x */
+ {USB_DEVICE(0x0af0, 0x7701)},
+ {USB_DEVICE(0x0af0, 0x7706)},
+ {USB_DEVICE(0x0af0, 0x7801)},
+ {USB_DEVICE(0x0af0, 0x7901)},
+ {USB_DEVICE(0x0af0, 0x7A01)},
+ {USB_DEVICE(0x0af0, 0x7A05)},
+ {USB_DEVICE(0x0af0, 0x8200)},
+ {USB_DEVICE(0x0af0, 0x8201)},
+ {USB_DEVICE(0x0af0, 0x8300)},
+ {USB_DEVICE(0x0af0, 0x8302)},
+ {USB_DEVICE(0x0af0, 0x8304)},
+ {USB_DEVICE(0x0af0, 0x8400)},
+ {USB_DEVICE(0x0af0, 0x8600)},
+ {USB_DEVICE(0x0af0, 0x8800)},
+ {USB_DEVICE(0x0af0, 0x8900)},
+ {USB_DEVICE(0x0af0, 0x9000)},
+ {USB_DEVICE(0x0af0, 0x9200)}, /* Option GTM671WFS */
+ {USB_DEVICE(0x0af0, 0xd035)},
+ {USB_DEVICE(0x0af0, 0xd055)},
+ {USB_DEVICE(0x0af0, 0xd155)},
+ {USB_DEVICE(0x0af0, 0xd255)},
+ {USB_DEVICE(0x0af0, 0xd057)},
+ {USB_DEVICE(0x0af0, 0xd157)},
+ {USB_DEVICE(0x0af0, 0xd257)},
+ {USB_DEVICE(0x0af0, 0xd357)},
+ {USB_DEVICE(0x0af0, 0xd058)},
+ {USB_DEVICE(0x0af0, 0xc100)},
+ {}
+};
+MODULE_DEVICE_TABLE(usb, hso_ids);
+
+/* Sysfs attribute */
+static ssize_t hso_sysfs_show_porttype(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct hso_device *hso_dev = dev_get_drvdata(dev);
+ char *port_name;
+
+ if (!hso_dev)
+ return 0;
+
+ switch (hso_dev->port_spec & HSO_PORT_MASK) {
+ case HSO_PORT_CONTROL:
+ port_name = "Control";
+ break;
+ case HSO_PORT_APP:
+ port_name = "Application";
+ break;
+ case HSO_PORT_APP2:
+ port_name = "Application2";
+ break;
+ case HSO_PORT_GPS:
+ port_name = "GPS";
+ break;
+ case HSO_PORT_GPS_CONTROL:
+ port_name = "GPS Control";
+ break;
+ case HSO_PORT_PCSC:
+ port_name = "PCSC";
+ break;
+ case HSO_PORT_DIAG:
+ port_name = "Diagnostic";
+ break;
+ case HSO_PORT_DIAG2:
+ port_name = "Diagnostic2";
+ break;
+ case HSO_PORT_MODEM:
+ port_name = "Modem";
+ break;
+ case HSO_PORT_NETWORK:
+ port_name = "Network";
+ break;
+ default:
+ port_name = "Unknown";
+ break;
+ }
+
+ return sprintf(buf, "%s\n", port_name);
+}
+static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL);
+
+static struct attribute *hso_serial_dev_attrs[] = {
+ &dev_attr_hsotype.attr,
+ NULL
+};
+
+ATTRIBUTE_GROUPS(hso_serial_dev);
+
+static int hso_urb_to_index(struct hso_serial *serial, struct urb *urb)
+{
+ int idx;
+
+ for (idx = 0; idx < serial->num_rx_urbs; idx++)
+ if (serial->rx_urb[idx] == urb)
+ return idx;
+ dev_err(serial->parent->dev, "hso_urb_to_index failed\n");
+ return -1;
+}
+
+/* converts mux value to a port spec value */
+static u32 hso_mux_to_port(int mux)
+{
+ u32 result;
+
+ switch (mux) {
+ case 0x1:
+ result = HSO_PORT_CONTROL;
+ break;
+ case 0x2:
+ result = HSO_PORT_APP;
+ break;
+ case 0x4:
+ result = HSO_PORT_PCSC;
+ break;
+ case 0x8:
+ result = HSO_PORT_GPS;
+ break;
+ case 0x10:
+ result = HSO_PORT_APP2;
+ break;
+ default:
+ result = HSO_PORT_NO_PORT;
+ }
+ return result;
+}
+
+/* converts port spec value to a mux value */
+static u32 hso_port_to_mux(int port)
+{
+ u32 result;
+
+ switch (port & HSO_PORT_MASK) {
+ case HSO_PORT_CONTROL:
+ result = 0x0;
+ break;
+ case HSO_PORT_APP:
+ result = 0x1;
+ break;
+ case HSO_PORT_PCSC:
+ result = 0x2;
+ break;
+ case HSO_PORT_GPS:
+ result = 0x3;
+ break;
+ case HSO_PORT_APP2:
+ result = 0x4;
+ break;
+ default:
+ result = 0x0;
+ }
+ return result;
+}
+
+static struct hso_serial *get_serial_by_shared_int_and_type(
+ struct hso_shared_int *shared_int,
+ int mux)
+{
+ int i, port;
+
+ port = hso_mux_to_port(mux);
+
+ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+ if (serial_table[i] &&
+ (dev2ser(serial_table[i])->shared_int == shared_int) &&
+ ((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) {
+ return dev2ser(serial_table[i]);
+ }
+ }
+
+ return NULL;
+}
+
+static struct hso_serial *get_serial_by_index(unsigned index)
+{
+ struct hso_serial *serial = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial_table_lock, flags);
+ if (serial_table[index])
+ serial = dev2ser(serial_table[index]);
+ spin_unlock_irqrestore(&serial_table_lock, flags);
+
+ return serial;
+}
+
+static int get_free_serial_index(void)
+{
+ int index;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial_table_lock, flags);
+ for (index = 0; index < HSO_SERIAL_TTY_MINORS; index++) {
+ if (serial_table[index] == NULL) {
+ spin_unlock_irqrestore(&serial_table_lock, flags);
+ return index;
+ }
+ }
+ spin_unlock_irqrestore(&serial_table_lock, flags);
+
+ printk(KERN_ERR "%s: no free serial devices in table\n", __func__);
+ return -1;
+}
+
+static void set_serial_by_index(unsigned index, struct hso_serial *serial)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial_table_lock, flags);
+ if (serial)
+ serial_table[index] = serial->parent;
+ else
+ serial_table[index] = NULL;
+ spin_unlock_irqrestore(&serial_table_lock, flags);
+}
+
+static void handle_usb_error(int status, const char *function,
+ struct hso_device *hso_dev)
+{
+ char *explanation;
+
+ switch (status) {
+ case -ENODEV:
+ explanation = "no device";
+ break;
+ case -ENOENT:
+ explanation = "endpoint not enabled";
+ break;
+ case -EPIPE:
+ explanation = "endpoint stalled";
+ break;
+ case -ENOSPC:
+ explanation = "not enough bandwidth";
+ break;
+ case -ESHUTDOWN:
+ explanation = "device disabled";
+ break;
+ case -EHOSTUNREACH:
+ explanation = "device suspended";
+ break;
+ case -EINVAL:
+ case -EAGAIN:
+ case -EFBIG:
+ case -EMSGSIZE:
+ explanation = "internal error";
+ break;
+ case -EILSEQ:
+ case -EPROTO:
+ case -ETIME:
+ case -ETIMEDOUT:
+ explanation = "protocol error";
+ if (hso_dev)
+ usb_queue_reset_device(hso_dev->interface);
+ break;
+ default:
+ explanation = "unknown status";
+ break;
+ }
+
+ /* log a meaningful explanation of an USB status */
+ D1("%s: received USB status - %s (%d)", function, explanation, status);
+}
+
+/* Network interface functions */
+
+/* called when net interface is brought up by ifconfig */
+static int hso_net_open(struct net_device *net)
+{
+ struct hso_net *odev = netdev_priv(net);
+ unsigned long flags = 0;
+
+ if (!odev) {
+ dev_err(&net->dev, "No net device !\n");
+ return -ENODEV;
+ }
+
+ odev->skb_tx_buf = NULL;
+
+ /* setup environment */
+ spin_lock_irqsave(&odev->net_lock, flags);
+ odev->rx_parse_state = WAIT_IP;
+ odev->rx_buf_size = 0;
+ odev->rx_buf_missing = sizeof(struct iphdr);
+ spin_unlock_irqrestore(&odev->net_lock, flags);
+
+ /* We are up and running. */
+ set_bit(HSO_NET_RUNNING, &odev->flags);
+ hso_start_net_device(odev->parent);
+
+ /* Tell the kernel we are ready to start receiving from it */
+ netif_start_queue(net);
+
+ return 0;
+}
+
+/* called when interface is brought down by ifconfig */
+static int hso_net_close(struct net_device *net)
+{
+ struct hso_net *odev = netdev_priv(net);
+
+ /* we don't need the queue anymore */
+ netif_stop_queue(net);
+ /* no longer running */
+ clear_bit(HSO_NET_RUNNING, &odev->flags);
+
+ hso_stop_net_device(odev->parent);
+
+ /* done */
+ return 0;
+}
+
+/* USB tells is xmit done, we should start the netqueue again */
+static void write_bulk_callback(struct urb *urb)
+{
+ struct hso_net *odev = urb->context;
+ int status = urb->status;
+
+ /* Sanity check */
+ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
+ dev_err(&urb->dev->dev, "%s: device not running\n", __func__);
+ return;
+ }
+
+ /* Do we still have a valid kernel network device? */
+ if (!netif_device_present(odev->net)) {
+ dev_err(&urb->dev->dev, "%s: net device not present\n",
+ __func__);
+ return;
+ }
+
+ /* log status, but don't act on it, we don't need to resubmit anything
+ * anyhow */
+ if (status)
+ handle_usb_error(status, __func__, odev->parent);
+
+ hso_put_activity(odev->parent);
+
+ /* Tell the network interface we are ready for another frame */
+ netif_wake_queue(odev->net);
+}
+
+/* called by kernel when we need to transmit a packet */
+static netdev_tx_t hso_net_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
+{
+ struct hso_net *odev = netdev_priv(net);
+ int result;
+
+ /* Tell the kernel, "No more frames 'til we are done with this one." */
+ netif_stop_queue(net);
+ if (hso_get_activity(odev->parent) == -EAGAIN) {
+ odev->skb_tx_buf = skb;
+ return NETDEV_TX_OK;
+ }
+
+ /* log if asked */
+ DUMP1(skb->data, skb->len);
+ /* Copy it from kernel memory to OUR memory */
+ memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len);
+ D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE);
+
+ /* Fill in the URB for shipping it out. */
+ usb_fill_bulk_urb(odev->mux_bulk_tx_urb,
+ odev->parent->usb,
+ usb_sndbulkpipe(odev->parent->usb,
+ odev->out_endp->
+ bEndpointAddress & 0x7F),
+ odev->mux_bulk_tx_buf, skb->len, write_bulk_callback,
+ odev);
+
+ /* Deal with the Zero Length packet problem, I hope */
+ odev->mux_bulk_tx_urb->transfer_flags |= URB_ZERO_PACKET;
+
+ /* Send the URB on its merry way. */
+ result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC);
+ if (result) {
+ dev_warn(&odev->parent->interface->dev,
+ "failed mux_bulk_tx_urb %d\n", result);
+ net->stats.tx_errors++;
+ netif_start_queue(net);
+ } else {
+ net->stats.tx_packets++;
+ net->stats.tx_bytes += skb->len;
+ }
+ dev_kfree_skb(skb);
+ /* we're done */
+ return NETDEV_TX_OK;
+}
+
+static const struct ethtool_ops ops = {
+ .get_link = ethtool_op_get_link
+};
+
+/* called when a packet did not ack after watchdogtimeout */
+static void hso_net_tx_timeout(struct net_device *net)
+{
+ struct hso_net *odev = netdev_priv(net);
+
+ if (!odev)
+ return;
+
+ /* Tell syslog we are hosed. */
+ dev_warn(&net->dev, "Tx timed out.\n");
+
+ /* Tear the waiting frame off the list */
+ if (odev->mux_bulk_tx_urb &&
+ (odev->mux_bulk_tx_urb->status == -EINPROGRESS))
+ usb_unlink_urb(odev->mux_bulk_tx_urb);
+
+ /* Update statistics */
+ net->stats.tx_errors++;
+}
+
+/* make a real packet from the received USB buffer */
+static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
+ unsigned int count, unsigned char is_eop)
+{
+ unsigned short temp_bytes;
+ unsigned short buffer_offset = 0;
+ unsigned short frame_len;
+ unsigned char *tmp_rx_buf;
+
+ /* log if needed */
+ D1("Rx %d bytes", count);
+ DUMP(ip_pkt, min(128, (int)count));
+
+ while (count) {
+ switch (odev->rx_parse_state) {
+ case WAIT_IP:
+ /* waiting for IP header. */
+ /* wanted bytes - size of ip header */
+ temp_bytes =
+ (count <
+ odev->rx_buf_missing) ? count : odev->
+ rx_buf_missing;
+
+ memcpy(((unsigned char *)(&odev->rx_ip_hdr)) +
+ odev->rx_buf_size, ip_pkt + buffer_offset,
+ temp_bytes);
+
+ odev->rx_buf_size += temp_bytes;
+ buffer_offset += temp_bytes;
+ odev->rx_buf_missing -= temp_bytes;
+ count -= temp_bytes;
+
+ if (!odev->rx_buf_missing) {
+ /* header is complete allocate an sk_buffer and
+ * continue to WAIT_DATA */
+ frame_len = ntohs(odev->rx_ip_hdr.tot_len);
+
+ if ((frame_len > DEFAULT_MRU) ||
+ (frame_len < sizeof(struct iphdr))) {
+ dev_err(&odev->net->dev,
+ "Invalid frame (%d) length\n",
+ frame_len);
+ odev->rx_parse_state = WAIT_SYNC;
+ continue;
+ }
+ /* Allocate an sk_buff */
+ odev->skb_rx_buf = netdev_alloc_skb(odev->net,
+ frame_len);
+ if (!odev->skb_rx_buf) {
+ /* We got no receive buffer. */
+ D1("could not allocate memory");
+ odev->rx_parse_state = WAIT_SYNC;
+ continue;
+ }
+
+ /* Copy what we got so far. make room for iphdr
+ * after tail. */
+ tmp_rx_buf =
+ skb_put(odev->skb_rx_buf,
+ sizeof(struct iphdr));
+ memcpy(tmp_rx_buf, (char *)&(odev->rx_ip_hdr),
+ sizeof(struct iphdr));
+
+ /* ETH_HLEN */
+ odev->rx_buf_size = sizeof(struct iphdr);
+
+ /* Filip actually use .tot_len */
+ odev->rx_buf_missing =
+ frame_len - sizeof(struct iphdr);
+ odev->rx_parse_state = WAIT_DATA;
+ }
+ break;
+
+ case WAIT_DATA:
+ temp_bytes = (count < odev->rx_buf_missing)
+ ? count : odev->rx_buf_missing;
+
+ /* Copy the rest of the bytes that are left in the
+ * buffer into the waiting sk_buf. */
+ /* Make room for temp_bytes after tail. */
+ tmp_rx_buf = skb_put(odev->skb_rx_buf, temp_bytes);
+ memcpy(tmp_rx_buf, ip_pkt + buffer_offset, temp_bytes);
+
+ odev->rx_buf_missing -= temp_bytes;
+ count -= temp_bytes;
+ buffer_offset += temp_bytes;
+ odev->rx_buf_size += temp_bytes;
+ if (!odev->rx_buf_missing) {
+ /* Packet is complete. Inject into stack. */
+ /* We have IP packet here */
+ odev->skb_rx_buf->protocol = cpu_to_be16(ETH_P_IP);
+ skb_reset_mac_header(odev->skb_rx_buf);
+
+ /* Ship it off to the kernel */
+ netif_rx(odev->skb_rx_buf);
+ /* No longer our buffer. */
+ odev->skb_rx_buf = NULL;
+
+ /* update out statistics */
+ odev->net->stats.rx_packets++;
+
+ odev->net->stats.rx_bytes += odev->rx_buf_size;
+
+ odev->rx_buf_size = 0;
+ odev->rx_buf_missing = sizeof(struct iphdr);
+ odev->rx_parse_state = WAIT_IP;
+ }
+ break;
+
+ case WAIT_SYNC:
+ D1(" W_S");
+ count = 0;
+ break;
+ default:
+ D1(" ");
+ count--;
+ break;
+ }
+ }
+
+ /* Recovery mechanism for WAIT_SYNC state. */
+ if (is_eop) {
+ if (odev->rx_parse_state == WAIT_SYNC) {
+ odev->rx_parse_state = WAIT_IP;
+ odev->rx_buf_size = 0;
+ odev->rx_buf_missing = sizeof(struct iphdr);
+ }
+ }
+}
+
+static void fix_crc_bug(struct urb *urb, __le16 max_packet_size)
+{
+ static const u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
+ u32 rest = urb->actual_length % le16_to_cpu(max_packet_size);
+
+ if (((rest == 5) || (rest == 6)) &&
+ !memcmp(((u8 *)urb->transfer_buffer) + urb->actual_length - 4,
+ crc_check, 4)) {
+ urb->actual_length -= 4;
+ }
+}
+
+/* Moving data from usb to kernel (in interrupt state) */
+static void read_bulk_callback(struct urb *urb)
+{
+ struct hso_net *odev = urb->context;
+ struct net_device *net;
+ int result;
+ int status = urb->status;
+
+ /* is al ok? (Filip: Who's Al ?) */
+ if (status) {
+ handle_usb_error(status, __func__, odev->parent);
+ return;
+ }
+
+ /* Sanity check */
+ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
+ D1("BULK IN callback but driver is not active!");
+ return;
+ }
+ usb_mark_last_busy(urb->dev);
+
+ net = odev->net;
+
+ if (!netif_device_present(net)) {
+ /* Somebody killed our network interface... */
+ return;
+ }
+
+ if (odev->parent->port_spec & HSO_INFO_CRC_BUG)
+ fix_crc_bug(urb, odev->in_endp->wMaxPacketSize);
+
+ /* do we even have a packet? */
+ if (urb->actual_length) {
+ /* Handle the IP stream, add header and push it onto network
+ * stack if the packet is complete. */
+ spin_lock(&odev->net_lock);
+ packetizeRx(odev, urb->transfer_buffer, urb->actual_length,
+ (urb->transfer_buffer_length >
+ urb->actual_length) ? 1 : 0);
+ spin_unlock(&odev->net_lock);
+ }
+
+ /* We are done with this URB, resubmit it. Prep the USB to wait for
+ * another frame. Reuse same as received. */
+ usb_fill_bulk_urb(urb,
+ odev->parent->usb,
+ usb_rcvbulkpipe(odev->parent->usb,
+ odev->in_endp->
+ bEndpointAddress & 0x7F),
+ urb->transfer_buffer, MUX_BULK_RX_BUF_SIZE,
+ read_bulk_callback, odev);
+
+ /* Give this to the USB subsystem so it can tell us when more data
+ * arrives. */
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result)
+ dev_warn(&odev->parent->interface->dev,
+ "%s failed submit mux_bulk_rx_urb %d\n", __func__,
+ result);
+}
+
+/* Serial driver functions */
+
+static void hso_init_termios(struct ktermios *termios)
+{
+ /*
+ * The default requirements for this device are:
+ */
+ termios->c_iflag &=
+ ~(IGNBRK /* disable ignore break */
+ | BRKINT /* disable break causes interrupt */
+ | PARMRK /* disable mark parity errors */
+ | ISTRIP /* disable clear high bit of input characters */
+ | INLCR /* disable translate NL to CR */
+ | IGNCR /* disable ignore CR */
+ | ICRNL /* disable translate CR to NL */
+ | IXON); /* disable enable XON/XOFF flow control */
+
+ /* disable postprocess output characters */
+ termios->c_oflag &= ~OPOST;
+
+ termios->c_lflag &=
+ ~(ECHO /* disable echo input characters */
+ | ECHONL /* disable echo new line */
+ | ICANON /* disable erase, kill, werase, and rprnt
+ special characters */
+ | ISIG /* disable interrupt, quit, and suspend special
+ characters */
+ | IEXTEN); /* disable non-POSIX special characters */
+
+ termios->c_cflag &=
+ ~(CSIZE /* no size */
+ | PARENB /* disable parity bit */
+ | CBAUD /* clear current baud rate */
+ | CBAUDEX); /* clear current buad rate */
+
+ termios->c_cflag |= CS8; /* character size 8 bits */
+
+ /* baud rate 115200 */
+ tty_termios_encode_baud_rate(termios, 115200, 115200);
+}
+
+static void _hso_serial_set_termios(struct tty_struct *tty,
+ struct ktermios *old)
+{
+ struct hso_serial *serial = tty->driver_data;
+
+ if (!serial) {
+ printk(KERN_ERR "%s: no tty structures", __func__);
+ return;
+ }
+
+ D4("port %d", serial->minor);
+
+ /*
+ * Fix up unsupported bits
+ */
+ tty->termios.c_iflag &= ~IXON; /* disable enable XON/XOFF flow control */
+
+ tty->termios.c_cflag &=
+ ~(CSIZE /* no size */
+ | PARENB /* disable parity bit */
+ | CBAUD /* clear current baud rate */
+ | CBAUDEX); /* clear current buad rate */
+
+ tty->termios.c_cflag |= CS8; /* character size 8 bits */
+
+ /* baud rate 115200 */
+ tty_encode_baud_rate(tty, 115200, 115200);
+}
+
+static void hso_resubmit_rx_bulk_urb(struct hso_serial *serial, struct urb *urb)
+{
+ int result;
+ /* We are done with this URB, resubmit it. Prep the USB to wait for
+ * another frame */
+ usb_fill_bulk_urb(urb, serial->parent->usb,
+ usb_rcvbulkpipe(serial->parent->usb,
+ serial->in_endp->
+ bEndpointAddress & 0x7F),
+ urb->transfer_buffer, serial->rx_data_length,
+ hso_std_serial_read_bulk_callback, serial);
+ /* Give this to the USB subsystem so it can tell us when more data
+ * arrives. */
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result) {
+ dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d\n",
+ __func__, result);
+ }
+}
+
+
+
+
+static void put_rxbuf_data_and_resubmit_bulk_urb(struct hso_serial *serial)
+{
+ int count;
+ struct urb *curr_urb;
+
+ while (serial->rx_urb_filled[serial->curr_rx_urb_idx]) {
+ curr_urb = serial->rx_urb[serial->curr_rx_urb_idx];
+ count = put_rxbuf_data(curr_urb, serial);
+ if (count == -1)
+ return;
+ if (count == 0) {
+ serial->curr_rx_urb_idx++;
+ if (serial->curr_rx_urb_idx >= serial->num_rx_urbs)
+ serial->curr_rx_urb_idx = 0;
+ hso_resubmit_rx_bulk_urb(serial, curr_urb);
+ }
+ }
+}
+
+static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
+{
+ int count = 0;
+ struct urb *urb;
+
+ urb = serial->rx_urb[0];
+ if (serial->port.count > 0) {
+ count = put_rxbuf_data(urb, serial);
+ if (count == -1)
+ return;
+ }
+ /* Re issue a read as long as we receive data. */
+
+ if (count == 0 && ((urb->actual_length != 0) ||
+ (serial->rx_state == RX_PENDING))) {
+ serial->rx_state = RX_SENT;
+ hso_mux_serial_read(serial);
+ } else
+ serial->rx_state = RX_IDLE;
+}
+
+
+/* read callback for Diag and CS port */
+static void hso_std_serial_read_bulk_callback(struct urb *urb)
+{
+ struct hso_serial *serial = urb->context;
+ int status = urb->status;
+
+ D4("\n--- Got serial_read_bulk callback %02x ---", status);
+
+ /* sanity check */
+ if (!serial) {
+ D1("serial == NULL");
+ return;
+ }
+ if (status) {
+ handle_usb_error(status, __func__, serial->parent);
+ return;
+ }
+
+ D1("Actual length = %d\n", urb->actual_length);
+ DUMP1(urb->transfer_buffer, urb->actual_length);
+
+ /* Anyone listening? */
+ if (serial->port.count == 0)
+ return;
+
+ if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
+ fix_crc_bug(urb, serial->in_endp->wMaxPacketSize);
+ /* Valid data, handle RX data */
+ spin_lock(&serial->serial_lock);
+ serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1;
+ put_rxbuf_data_and_resubmit_bulk_urb(serial);
+ spin_unlock(&serial->serial_lock);
+}
+
+/*
+ * This needs to be a tasklet otherwise we will
+ * end up recursively calling this function.
+ */
+static void hso_unthrottle_tasklet(struct hso_serial *serial)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ if ((serial->parent->port_spec & HSO_INTF_MUX))
+ put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+ else
+ put_rxbuf_data_and_resubmit_bulk_urb(serial);
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+}
+
+static void hso_unthrottle(struct tty_struct *tty)
+{
+ struct hso_serial *serial = tty->driver_data;
+
+ tasklet_hi_schedule(&serial->unthrottle_tasklet);
+}
+
+/* open the requested serial port */
+static int hso_serial_open(struct tty_struct *tty, struct file *filp)
+{
+ struct hso_serial *serial = get_serial_by_index(tty->index);
+ int result;
+
+ /* sanity check */
+ if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
+ WARN_ON(1);
+ tty->driver_data = NULL;
+ D1("Failed to open port");
+ return -ENODEV;
+ }
+
+ mutex_lock(&serial->parent->mutex);
+ result = usb_autopm_get_interface(serial->parent->interface);
+ if (result < 0)
+ goto err_out;
+
+ D1("Opening %d", serial->minor);
+
+ /* setup */
+ tty->driver_data = serial;
+ tty_port_tty_set(&serial->port, tty);
+
+ /* check for port already opened, if not set the termios */
+ serial->port.count++;
+ if (serial->port.count == 1) {
+ serial->rx_state = RX_IDLE;
+ /* Force default termio settings */
+ _hso_serial_set_termios(tty, NULL);
+ tasklet_init(&serial->unthrottle_tasklet,
+ (void (*)(unsigned long))hso_unthrottle_tasklet,
+ (unsigned long)serial);
+ result = hso_start_serial_device(serial->parent, GFP_KERNEL);
+ if (result) {
+ hso_stop_serial_device(serial->parent);
+ serial->port.count--;
+ } else {
+ kref_get(&serial->parent->ref);
+ }
+ } else {
+ D1("Port was already open");
+ }
+
+ usb_autopm_put_interface(serial->parent->interface);
+
+ /* done */
+ if (result)
+ hso_serial_tiocmset(tty, TIOCM_RTS | TIOCM_DTR, 0);
+err_out:
+ mutex_unlock(&serial->parent->mutex);
+ return result;
+}
+
+/* close the requested serial port */
+static void hso_serial_close(struct tty_struct *tty, struct file *filp)
+{
+ struct hso_serial *serial = tty->driver_data;
+ u8 usb_gone;
+
+ D1("Closing serial port");
+
+ /* Open failed, no close cleanup required */
+ if (serial == NULL)
+ return;
+
+ mutex_lock(&serial->parent->mutex);
+ usb_gone = serial->parent->usb_gone;
+
+ if (!usb_gone)
+ usb_autopm_get_interface(serial->parent->interface);
+
+ /* reset the rts and dtr */
+ /* do the actual close */
+ serial->port.count--;
+
+ if (serial->port.count <= 0) {
+ serial->port.count = 0;
+ tty_port_tty_set(&serial->port, NULL);
+ if (!usb_gone)
+ hso_stop_serial_device(serial->parent);
+ tasklet_kill(&serial->unthrottle_tasklet);
+ }
+
+ if (!usb_gone)
+ usb_autopm_put_interface(serial->parent->interface);
+
+ mutex_unlock(&serial->parent->mutex);
+}
+
+/* close the requested serial port */
+static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf,
+ int count)
+{
+ struct hso_serial *serial = tty->driver_data;
+ int space, tx_bytes;
+ unsigned long flags;
+
+ /* sanity check */
+ if (serial == NULL) {
+ printk(KERN_ERR "%s: serial is NULL\n", __func__);
+ return -ENODEV;
+ }
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+
+ space = serial->tx_data_length - serial->tx_buffer_count;
+ tx_bytes = (count < space) ? count : space;
+
+ if (!tx_bytes)
+ goto out;
+
+ memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes);
+ serial->tx_buffer_count += tx_bytes;
+
+out:
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+ hso_kick_transmit(serial);
+ /* done */
+ return tx_bytes;
+}
+
+/* how much room is there for writing */
+static int hso_serial_write_room(struct tty_struct *tty)
+{
+ struct hso_serial *serial = tty->driver_data;
+ int room;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ room = serial->tx_data_length - serial->tx_buffer_count;
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+ /* return free room */
+ return room;
+}
+
+static void hso_serial_cleanup(struct tty_struct *tty)
+{
+ struct hso_serial *serial = tty->driver_data;
+
+ if (!serial)
+ return;
+
+ kref_put(&serial->parent->ref, hso_serial_ref_free);
+}
+
+/* setup the term */
+static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
+{
+ struct hso_serial *serial = tty->driver_data;
+ unsigned long flags;
+
+ if (old)
+ D5("Termios called with: cflags new[%d] - old[%d]",
+ tty->termios.c_cflag, old->c_cflag);
+
+ /* the actual setup */
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ if (serial->port.count)
+ _hso_serial_set_termios(tty, old);
+ else
+ tty->termios = *old;
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+ /* done */
+}
+
+/* how many characters in the buffer */
+static int hso_serial_chars_in_buffer(struct tty_struct *tty)
+{
+ struct hso_serial *serial = tty->driver_data;
+ int chars;
+ unsigned long flags;
+
+ /* sanity check */
+ if (serial == NULL)
+ return 0;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ chars = serial->tx_buffer_count;
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+ return chars;
+}
+static int tiocmget_submit_urb(struct hso_serial *serial,
+ struct hso_tiocmget *tiocmget,
+ struct usb_device *usb)
+{
+ int result;
+
+ if (serial->parent->usb_gone)
+ return -ENODEV;
+ usb_fill_int_urb(tiocmget->urb, usb,
+ usb_rcvintpipe(usb,
+ tiocmget->endp->
+ bEndpointAddress & 0x7F),
+ &tiocmget->serial_state_notification,
+ sizeof(struct hso_serial_state_notification),
+ tiocmget_intr_callback, serial,
+ tiocmget->endp->bInterval);
+ result = usb_submit_urb(tiocmget->urb, GFP_ATOMIC);
+ if (result) {
+ dev_warn(&usb->dev, "%s usb_submit_urb failed %d\n", __func__,
+ result);
+ }
+ return result;
+
+}
+
+static void tiocmget_intr_callback(struct urb *urb)
+{
+ struct hso_serial *serial = urb->context;
+ struct hso_tiocmget *tiocmget;
+ int status = urb->status;
+ u16 UART_state_bitmap, prev_UART_state_bitmap;
+ struct uart_icount *icount;
+ struct hso_serial_state_notification *serial_state_notification;
+ struct usb_device *usb;
+ struct usb_interface *interface;
+ int if_num;
+
+ /* Sanity checks */
+ if (!serial)
+ return;
+ if (status) {
+ handle_usb_error(status, __func__, serial->parent);
+ return;
+ }
+
+ /* tiocmget is only supported on HSO_PORT_MODEM */
+ tiocmget = serial->tiocmget;
+ if (!tiocmget)
+ return;
+ BUG_ON((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM);
+
+ usb = serial->parent->usb;
+ interface = serial->parent->interface;
+
+ if_num = interface->cur_altsetting->desc.bInterfaceNumber;
+
+ /* wIndex should be the USB interface number of the port to which the
+ * notification applies, which should always be the Modem port.
+ */
+ serial_state_notification = &tiocmget->serial_state_notification;
+ if (serial_state_notification->bmRequestType != BM_REQUEST_TYPE ||
+ serial_state_notification->bNotification != B_NOTIFICATION ||
+ le16_to_cpu(serial_state_notification->wValue) != W_VALUE ||
+ le16_to_cpu(serial_state_notification->wIndex) != if_num ||
+ le16_to_cpu(serial_state_notification->wLength) != W_LENGTH) {
+ dev_warn(&usb->dev,
+ "hso received invalid serial state notification\n");
+ DUMP(serial_state_notification,
+ sizeof(struct hso_serial_state_notification));
+ } else {
+
+ UART_state_bitmap = le16_to_cpu(serial_state_notification->
+ UART_state_bitmap);
+ prev_UART_state_bitmap = tiocmget->prev_UART_state_bitmap;
+ icount = &tiocmget->icount;
+ spin_lock(&serial->serial_lock);
+ if ((UART_state_bitmap & B_OVERRUN) !=
+ (prev_UART_state_bitmap & B_OVERRUN))
+ icount->parity++;
+ if ((UART_state_bitmap & B_PARITY) !=
+ (prev_UART_state_bitmap & B_PARITY))
+ icount->parity++;
+ if ((UART_state_bitmap & B_FRAMING) !=
+ (prev_UART_state_bitmap & B_FRAMING))
+ icount->frame++;
+ if ((UART_state_bitmap & B_RING_SIGNAL) &&
+ !(prev_UART_state_bitmap & B_RING_SIGNAL))
+ icount->rng++;
+ if ((UART_state_bitmap & B_BREAK) !=
+ (prev_UART_state_bitmap & B_BREAK))
+ icount->brk++;
+ if ((UART_state_bitmap & B_TX_CARRIER) !=
+ (prev_UART_state_bitmap & B_TX_CARRIER))
+ icount->dsr++;
+ if ((UART_state_bitmap & B_RX_CARRIER) !=
+ (prev_UART_state_bitmap & B_RX_CARRIER))
+ icount->dcd++;
+ tiocmget->prev_UART_state_bitmap = UART_state_bitmap;
+ spin_unlock(&serial->serial_lock);
+ tiocmget->intr_completed = 1;
+ wake_up_interruptible(&tiocmget->waitq);
+ }
+ memset(serial_state_notification, 0,
+ sizeof(struct hso_serial_state_notification));
+ tiocmget_submit_urb(serial,
+ tiocmget,
+ serial->parent->usb);
+}
+
+/*
+ * next few functions largely stolen from drivers/serial/serial_core.c
+ */
+/* Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
+ * - mask passed in arg for lines of interest
+ * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
+ * Caller should use TIOCGICOUNT to see which one it was
+ */
+static int
+hso_wait_modem_status(struct hso_serial *serial, unsigned long arg)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ struct uart_icount cprev, cnow;
+ struct hso_tiocmget *tiocmget;
+ int ret;
+
+ tiocmget = serial->tiocmget;
+ if (!tiocmget)
+ return -ENOENT;
+ /*
+ * note the counters on entry
+ */
+ spin_lock_irq(&serial->serial_lock);
+ memcpy(&cprev, &tiocmget->icount, sizeof(struct uart_icount));
+ spin_unlock_irq(&serial->serial_lock);
+ add_wait_queue(&tiocmget->waitq, &wait);
+ for (;;) {
+ spin_lock_irq(&serial->serial_lock);
+ memcpy(&cnow, &tiocmget->icount, sizeof(struct uart_icount));
+ spin_unlock_irq(&serial->serial_lock);
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd))) {
+ ret = 0;
+ break;
+ }
+ schedule();
+ /* see if a signal did it */
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ cprev = cnow;
+ }
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&tiocmget->waitq, &wait);
+
+ return ret;
+}
+
+/*
+ * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
+ * Return: write counters to the user passed counter struct
+ * NB: both 1->0 and 0->1 transitions are counted except for
+ * RI where only 0->1 is counted.
+ */
+static int hso_get_count(struct tty_struct *tty,
+ struct serial_icounter_struct *icount)
+{
+ struct uart_icount cnow;
+ struct hso_serial *serial = tty->driver_data;
+ struct hso_tiocmget *tiocmget = serial->tiocmget;
+
+ memset(icount, 0, sizeof(struct serial_icounter_struct));
+
+ if (!tiocmget)
+ return -ENOENT;
+ spin_lock_irq(&serial->serial_lock);
+ memcpy(&cnow, &tiocmget->icount, sizeof(struct uart_icount));
+ spin_unlock_irq(&serial->serial_lock);
+
+ icount->cts = cnow.cts;
+ icount->dsr = cnow.dsr;
+ icount->rng = cnow.rng;
+ icount->dcd = cnow.dcd;
+ icount->rx = cnow.rx;
+ icount->tx = cnow.tx;
+ icount->frame = cnow.frame;
+ icount->overrun = cnow.overrun;
+ icount->parity = cnow.parity;
+ icount->brk = cnow.brk;
+ icount->buf_overrun = cnow.buf_overrun;
+
+ return 0;
+}
+
+
+static int hso_serial_tiocmget(struct tty_struct *tty)
+{
+ int retval;
+ struct hso_serial *serial = tty->driver_data;
+ struct hso_tiocmget *tiocmget;
+ u16 UART_state_bitmap;
+
+ /* sanity check */
+ if (!serial) {
+ D1("no tty structures");
+ return -EINVAL;
+ }
+ spin_lock_irq(&serial->serial_lock);
+ retval = ((serial->rts_state) ? TIOCM_RTS : 0) |
+ ((serial->dtr_state) ? TIOCM_DTR : 0);
+ tiocmget = serial->tiocmget;
+ if (tiocmget) {
+
+ UART_state_bitmap = le16_to_cpu(
+ tiocmget->prev_UART_state_bitmap);
+ if (UART_state_bitmap & B_RING_SIGNAL)
+ retval |= TIOCM_RNG;
+ if (UART_state_bitmap & B_RX_CARRIER)
+ retval |= TIOCM_CD;
+ if (UART_state_bitmap & B_TX_CARRIER)
+ retval |= TIOCM_DSR;
+ }
+ spin_unlock_irq(&serial->serial_lock);
+ return retval;
+}
+
+static int hso_serial_tiocmset(struct tty_struct *tty,
+ unsigned int set, unsigned int clear)
+{
+ int val = 0;
+ unsigned long flags;
+ int if_num;
+ struct hso_serial *serial = tty->driver_data;
+ struct usb_interface *interface;
+
+ /* sanity check */
+ if (!serial) {
+ D1("no tty structures");
+ return -EINVAL;
+ }
+
+ if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM)
+ return -EINVAL;
+
+ interface = serial->parent->interface;
+ if_num = interface->cur_altsetting->desc.bInterfaceNumber;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ if (set & TIOCM_RTS)
+ serial->rts_state = 1;
+ if (set & TIOCM_DTR)
+ serial->dtr_state = 1;
+
+ if (clear & TIOCM_RTS)
+ serial->rts_state = 0;
+ if (clear & TIOCM_DTR)
+ serial->dtr_state = 0;
+
+ if (serial->dtr_state)
+ val |= 0x01;
+ if (serial->rts_state)
+ val |= 0x02;
+
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+ return usb_control_msg(serial->parent->usb,
+ usb_rcvctrlpipe(serial->parent->usb, 0), 0x22,
+ 0x21, val, if_num, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+}
+
+static int hso_serial_ioctl(struct tty_struct *tty,
+ unsigned int cmd, unsigned long arg)
+{
+ struct hso_serial *serial = tty->driver_data;
+ int ret = 0;
+ D4("IOCTL cmd: %d, arg: %ld", cmd, arg);
+
+ if (!serial)
+ return -ENODEV;
+ switch (cmd) {
+ case TIOCMIWAIT:
+ ret = hso_wait_modem_status(serial, arg);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ break;
+ }
+ return ret;
+}
+
+
+/* starts a transmit */
+static void hso_kick_transmit(struct hso_serial *serial)
+{
+ u8 *temp;
+ unsigned long flags;
+ int res;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ if (!serial->tx_buffer_count)
+ goto out;
+
+ if (serial->tx_urb_used)
+ goto out;
+
+ /* Wakeup USB interface if necessary */
+ if (hso_get_activity(serial->parent) == -EAGAIN)
+ goto out;
+
+ /* Switch pointers around to avoid memcpy */
+ temp = serial->tx_buffer;
+ serial->tx_buffer = serial->tx_data;
+ serial->tx_data = temp;
+ serial->tx_data_count = serial->tx_buffer_count;
+ serial->tx_buffer_count = 0;
+
+ /* If temp is set, it means we switched buffers */
+ if (temp && serial->write_data) {
+ res = serial->write_data(serial);
+ if (res >= 0)
+ serial->tx_urb_used = 1;
+ }
+out:
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+}
+
+/* make a request (for reading and writing data to muxed serial port) */
+static int mux_device_request(struct hso_serial *serial, u8 type, u16 port,
+ struct urb *ctrl_urb,
+ struct usb_ctrlrequest *ctrl_req,
+ u8 *ctrl_urb_data, u32 size)
+{
+ int result;
+ int pipe;
+
+ /* Sanity check */
+ if (!serial || !ctrl_urb || !ctrl_req) {
+ printk(KERN_ERR "%s: Wrong arguments\n", __func__);
+ return -EINVAL;
+ }
+
+ /* initialize */
+ ctrl_req->wValue = 0;
+ ctrl_req->wIndex = cpu_to_le16(hso_port_to_mux(port));
+ ctrl_req->wLength = cpu_to_le16(size);
+
+ if (type == USB_CDC_GET_ENCAPSULATED_RESPONSE) {
+ /* Reading command */
+ ctrl_req->bRequestType = USB_DIR_IN |
+ USB_TYPE_OPTION_VENDOR |
+ USB_RECIP_INTERFACE;
+ ctrl_req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE;
+ pipe = usb_rcvctrlpipe(serial->parent->usb, 0);
+ } else {
+ /* Writing command */
+ ctrl_req->bRequestType = USB_DIR_OUT |
+ USB_TYPE_OPTION_VENDOR |
+ USB_RECIP_INTERFACE;
+ ctrl_req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND;
+ pipe = usb_sndctrlpipe(serial->parent->usb, 0);
+ }
+ /* syslog */
+ D2("%s command (%02x) len: %d, port: %d",
+ type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write",
+ ctrl_req->bRequestType, ctrl_req->wLength, port);
+
+ /* Load ctrl urb */
+ ctrl_urb->transfer_flags = 0;
+ usb_fill_control_urb(ctrl_urb,
+ serial->parent->usb,
+ pipe,
+ (u8 *) ctrl_req,
+ ctrl_urb_data, size, ctrl_callback, serial);
+ /* Send it on merry way */
+ result = usb_submit_urb(ctrl_urb, GFP_ATOMIC);
+ if (result) {
+ dev_err(&ctrl_urb->dev->dev,
+ "%s failed submit ctrl_urb %d type %d\n", __func__,
+ result, type);
+ return result;
+ }
+
+ /* done */
+ return size;
+}
+
+/* called by intr_callback when read occurs */
+static int hso_mux_serial_read(struct hso_serial *serial)
+{
+ if (!serial)
+ return -EINVAL;
+
+ /* clean data */
+ memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE);
+ /* make the request */
+
+ if (serial->num_rx_urbs != 1) {
+ dev_err(&serial->parent->interface->dev,
+ "ERROR: mux'd reads with multiple buffers "
+ "not possible\n");
+ return 0;
+ }
+ return mux_device_request(serial,
+ USB_CDC_GET_ENCAPSULATED_RESPONSE,
+ serial->parent->port_spec & HSO_PORT_MASK,
+ serial->rx_urb[0],
+ &serial->ctrl_req_rx,
+ serial->rx_data[0], serial->rx_data_length);
+}
+
+/* used for muxed serial port callback (muxed serial read) */
+static void intr_callback(struct urb *urb)
+{
+ struct hso_shared_int *shared_int = urb->context;
+ struct hso_serial *serial;
+ unsigned char *port_req;
+ int status = urb->status;
+ int i;
+
+ usb_mark_last_busy(urb->dev);
+
+ /* sanity check */
+ if (!shared_int)
+ return;
+
+ /* status check */
+ if (status) {
+ handle_usb_error(status, __func__, NULL);
+ return;
+ }
+ D4("\n--- Got intr callback 0x%02X ---", status);
+
+ /* what request? */
+ port_req = urb->transfer_buffer;
+ D4(" port_req = 0x%.2X\n", *port_req);
+ /* loop over all muxed ports to find the one sending this */
+ for (i = 0; i < 8; i++) {
+ /* max 8 channels on MUX */
+ if (*port_req & (1 << i)) {
+ serial = get_serial_by_shared_int_and_type(shared_int,
+ (1 << i));
+ if (serial != NULL) {
+ D1("Pending read interrupt on port %d\n", i);
+ spin_lock(&serial->serial_lock);
+ if (serial->rx_state == RX_IDLE &&
+ serial->port.count > 0) {
+ /* Setup and send a ctrl req read on
+ * port i */
+ if (!serial->rx_urb_filled[0]) {
+ serial->rx_state = RX_SENT;
+ hso_mux_serial_read(serial);
+ } else
+ serial->rx_state = RX_PENDING;
+ } else {
+ D1("Already a read pending on "
+ "port %d or port not open\n", i);
+ }
+ spin_unlock(&serial->serial_lock);
+ }
+ }
+ }
+ /* Resubmit interrupt urb */
+ hso_mux_submit_intr_urb(shared_int, urb->dev, GFP_ATOMIC);
+}
+
+/* called for writing to muxed serial port */
+static int hso_mux_serial_write_data(struct hso_serial *serial)
+{
+ if (NULL == serial)
+ return -EINVAL;
+
+ return mux_device_request(serial,
+ USB_CDC_SEND_ENCAPSULATED_COMMAND,
+ serial->parent->port_spec & HSO_PORT_MASK,
+ serial->tx_urb,
+ &serial->ctrl_req_tx,
+ serial->tx_data, serial->tx_data_count);
+}
+
+/* write callback for Diag and CS port */
+static void hso_std_serial_write_bulk_callback(struct urb *urb)
+{
+ struct hso_serial *serial = urb->context;
+ int status = urb->status;
+
+ /* sanity check */
+ if (!serial) {
+ D1("serial == NULL");
+ return;
+ }
+
+ spin_lock(&serial->serial_lock);
+ serial->tx_urb_used = 0;
+ spin_unlock(&serial->serial_lock);
+ if (status) {
+ handle_usb_error(status, __func__, serial->parent);
+ return;
+ }
+ hso_put_activity(serial->parent);
+ tty_port_tty_wakeup(&serial->port);
+ hso_kick_transmit(serial);
+
+ D1(" ");
+}
+
+/* called for writing diag or CS serial port */
+static int hso_std_serial_write_data(struct hso_serial *serial)
+{
+ int count = serial->tx_data_count;
+ int result;
+
+ usb_fill_bulk_urb(serial->tx_urb,
+ serial->parent->usb,
+ usb_sndbulkpipe(serial->parent->usb,
+ serial->out_endp->
+ bEndpointAddress & 0x7F),
+ serial->tx_data, serial->tx_data_count,
+ hso_std_serial_write_bulk_callback, serial);
+
+ result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC);
+ if (result) {
+ dev_warn(&serial->parent->usb->dev,
+ "Failed to submit urb - res %d\n", result);
+ return result;
+ }
+
+ return count;
+}
+
+/* callback after read or write on muxed serial port */
+static void ctrl_callback(struct urb *urb)
+{
+ struct hso_serial *serial = urb->context;
+ struct usb_ctrlrequest *req;
+ int status = urb->status;
+
+ /* sanity check */
+ if (!serial)
+ return;
+
+ spin_lock(&serial->serial_lock);
+ serial->tx_urb_used = 0;
+ spin_unlock(&serial->serial_lock);
+ if (status) {
+ handle_usb_error(status, __func__, serial->parent);
+ return;
+ }
+
+ /* what request? */
+ req = (struct usb_ctrlrequest *)(urb->setup_packet);
+ D4("\n--- Got muxed ctrl callback 0x%02X ---", status);
+ D4("Actual length of urb = %d\n", urb->actual_length);
+ DUMP1(urb->transfer_buffer, urb->actual_length);
+
+ if (req->bRequestType ==
+ (USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) {
+ /* response to a read command */
+ serial->rx_urb_filled[0] = 1;
+ spin_lock(&serial->serial_lock);
+ put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+ spin_unlock(&serial->serial_lock);
+ } else {
+ hso_put_activity(serial->parent);
+ tty_port_tty_wakeup(&serial->port);
+ /* response to a write command */
+ hso_kick_transmit(serial);
+ }
+}
+
+/* handle RX data for serial port */
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
+{
+ struct tty_struct *tty;
+ int count;
+
+ /* Sanity check */
+ if (urb == NULL || serial == NULL) {
+ D1("serial = NULL");
+ return -2;
+ }
+
+ tty = tty_port_tty_get(&serial->port);
+
+ if (tty && test_bit(TTY_THROTTLED, &tty->flags)) {
+ tty_kref_put(tty);
+ return -1;
+ }
+
+ /* Push data to tty */
+ D1("data to push to tty");
+ count = tty_buffer_request_room(&serial->port, urb->actual_length);
+ if (count >= urb->actual_length) {
+ tty_insert_flip_string(&serial->port, urb->transfer_buffer,
+ urb->actual_length);
+ tty_flip_buffer_push(&serial->port);
+ } else {
+ dev_warn(&serial->parent->usb->dev,
+ "dropping data, %d bytes lost\n", urb->actual_length);
+ }
+
+ tty_kref_put(tty);
+
+ serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0;
+
+ return 0;
+}
+
+
+/* Base driver functions */
+
+static void hso_log_port(struct hso_device *hso_dev)
+{
+ char *port_type;
+ char port_dev[20];
+
+ switch (hso_dev->port_spec & HSO_PORT_MASK) {
+ case HSO_PORT_CONTROL:
+ port_type = "Control";
+ break;
+ case HSO_PORT_APP:
+ port_type = "Application";
+ break;
+ case HSO_PORT_GPS:
+ port_type = "GPS";
+ break;
+ case HSO_PORT_GPS_CONTROL:
+ port_type = "GPS control";
+ break;
+ case HSO_PORT_APP2:
+ port_type = "Application2";
+ break;
+ case HSO_PORT_PCSC:
+ port_type = "PCSC";
+ break;
+ case HSO_PORT_DIAG:
+ port_type = "Diagnostic";
+ break;
+ case HSO_PORT_DIAG2:
+ port_type = "Diagnostic2";
+ break;
+ case HSO_PORT_MODEM:
+ port_type = "Modem";
+ break;
+ case HSO_PORT_NETWORK:
+ port_type = "Network";
+ break;
+ default:
+ port_type = "Unknown";
+ break;
+ }
+ if ((hso_dev->port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+ sprintf(port_dev, "%s", dev2net(hso_dev)->net->name);
+ } else
+ sprintf(port_dev, "/dev/%s%d", tty_filename,
+ dev2ser(hso_dev)->minor);
+
+ dev_dbg(&hso_dev->interface->dev, "HSO: Found %s port %s\n",
+ port_type, port_dev);
+}
+
+static int hso_start_net_device(struct hso_device *hso_dev)
+{
+ int i, result = 0;
+ struct hso_net *hso_net = dev2net(hso_dev);
+
+ if (!hso_net)
+ return -ENODEV;
+
+ /* send URBs for all read buffers */
+ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+
+ /* Prep a receive URB */
+ usb_fill_bulk_urb(hso_net->mux_bulk_rx_urb_pool[i],
+ hso_dev->usb,
+ usb_rcvbulkpipe(hso_dev->usb,
+ hso_net->in_endp->
+ bEndpointAddress & 0x7F),
+ hso_net->mux_bulk_rx_buf_pool[i],
+ MUX_BULK_RX_BUF_SIZE, read_bulk_callback,
+ hso_net);
+
+ /* Put it out there so the device can send us stuff */
+ result = usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i],
+ GFP_NOIO);
+ if (result)
+ dev_warn(&hso_dev->usb->dev,
+ "%s failed mux_bulk_rx_urb[%d] %d\n", __func__,
+ i, result);
+ }
+
+ return result;
+}
+
+static int hso_stop_net_device(struct hso_device *hso_dev)
+{
+ int i;
+ struct hso_net *hso_net = dev2net(hso_dev);
+
+ if (!hso_net)
+ return -ENODEV;
+
+ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+ if (hso_net->mux_bulk_rx_urb_pool[i])
+ usb_kill_urb(hso_net->mux_bulk_rx_urb_pool[i]);
+
+ }
+ if (hso_net->mux_bulk_tx_urb)
+ usb_kill_urb(hso_net->mux_bulk_tx_urb);
+
+ return 0;
+}
+
+static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags)
+{
+ int i, result = 0;
+ struct hso_serial *serial = dev2ser(hso_dev);
+
+ if (!serial)
+ return -ENODEV;
+
+ /* If it is not the MUX port fill in and submit a bulk urb (already
+ * allocated in hso_serial_start) */
+ if (!(serial->parent->port_spec & HSO_INTF_MUX)) {
+ for (i = 0; i < serial->num_rx_urbs; i++) {
+ usb_fill_bulk_urb(serial->rx_urb[i],
+ serial->parent->usb,
+ usb_rcvbulkpipe(serial->parent->usb,
+ serial->in_endp->
+ bEndpointAddress &
+ 0x7F),
+ serial->rx_data[i],
+ serial->rx_data_length,
+ hso_std_serial_read_bulk_callback,
+ serial);
+ result = usb_submit_urb(serial->rx_urb[i], flags);
+ if (result) {
+ dev_warn(&serial->parent->usb->dev,
+ "Failed to submit urb - res %d\n",
+ result);
+ break;
+ }
+ }
+ } else {
+ mutex_lock(&serial->shared_int->shared_int_lock);
+ if (!serial->shared_int->use_count) {
+ result =
+ hso_mux_submit_intr_urb(serial->shared_int,
+ hso_dev->usb, flags);
+ }
+ serial->shared_int->use_count++;
+ mutex_unlock(&serial->shared_int->shared_int_lock);
+ }
+ if (serial->tiocmget)
+ tiocmget_submit_urb(serial,
+ serial->tiocmget,
+ serial->parent->usb);
+ return result;
+}
+
+static int hso_stop_serial_device(struct hso_device *hso_dev)
+{
+ int i;
+ struct hso_serial *serial = dev2ser(hso_dev);
+ struct hso_tiocmget *tiocmget;
+
+ if (!serial)
+ return -ENODEV;
+
+ for (i = 0; i < serial->num_rx_urbs; i++) {
+ if (serial->rx_urb[i]) {
+ usb_kill_urb(serial->rx_urb[i]);
+ serial->rx_urb_filled[i] = 0;
+ }
+ }
+ serial->curr_rx_urb_idx = 0;
+
+ if (serial->tx_urb)
+ usb_kill_urb(serial->tx_urb);
+
+ if (serial->shared_int) {
+ mutex_lock(&serial->shared_int->shared_int_lock);
+ if (serial->shared_int->use_count &&
+ (--serial->shared_int->use_count == 0)) {
+ struct urb *urb;
+
+ urb = serial->shared_int->shared_intr_urb;
+ if (urb)
+ usb_kill_urb(urb);
+ }
+ mutex_unlock(&serial->shared_int->shared_int_lock);
+ }
+ tiocmget = serial->tiocmget;
+ if (tiocmget) {
+ wake_up_interruptible(&tiocmget->waitq);
+ usb_kill_urb(tiocmget->urb);
+ }
+
+ return 0;
+}
+
+static void hso_serial_tty_unregister(struct hso_serial *serial)
+{
+ tty_unregister_device(tty_drv, serial->minor);
+}
+
+static void hso_serial_common_free(struct hso_serial *serial)
+{
+ int i;
+
+ for (i = 0; i < serial->num_rx_urbs; i++) {
+ /* unlink and free RX URB */
+ usb_free_urb(serial->rx_urb[i]);
+ /* free the RX buffer */
+ kfree(serial->rx_data[i]);
+ }
+
+ /* unlink and free TX URB */
+ usb_free_urb(serial->tx_urb);
+ kfree(serial->tx_buffer);
+ kfree(serial->tx_data);
+ tty_port_destroy(&serial->port);
+}
+
+static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
+ int rx_size, int tx_size)
+{
+ struct device *dev;
+ int minor;
+ int i;
+
+ tty_port_init(&serial->port);
+
+ minor = get_free_serial_index();
+ if (minor < 0)
+ goto exit;
+
+ /* register our minor number */
+ serial->parent->dev = tty_port_register_device_attr(&serial->port,
+ tty_drv, minor, &serial->parent->interface->dev,
+ serial->parent, hso_serial_dev_groups);
+ dev = serial->parent->dev;
+
+ /* fill in specific data for later use */
+ serial->minor = minor;
+ serial->magic = HSO_SERIAL_MAGIC;
+ spin_lock_init(&serial->serial_lock);
+ serial->num_rx_urbs = num_urbs;
+
+ /* RX, allocate urb and initialize */
+
+ /* prepare our RX buffer */
+ serial->rx_data_length = rx_size;
+ for (i = 0; i < serial->num_rx_urbs; i++) {
+ serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!serial->rx_urb[i]) {
+ dev_err(dev, "Could not allocate urb?\n");
+ goto exit;
+ }
+ serial->rx_urb[i]->transfer_buffer = NULL;
+ serial->rx_urb[i]->transfer_buffer_length = 0;
+ serial->rx_data[i] = kzalloc(serial->rx_data_length,
+ GFP_KERNEL);
+ if (!serial->rx_data[i])
+ goto exit;
+ }
+
+ /* TX, allocate urb and initialize */
+ serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!serial->tx_urb) {
+ dev_err(dev, "Could not allocate urb?\n");
+ goto exit;
+ }
+ serial->tx_urb->transfer_buffer = NULL;
+ serial->tx_urb->transfer_buffer_length = 0;
+ /* prepare our TX buffer */
+ serial->tx_data_count = 0;
+ serial->tx_buffer_count = 0;
+ serial->tx_data_length = tx_size;
+ serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL);
+ if (!serial->tx_data)
+ goto exit;
+
+ serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL);
+ if (!serial->tx_buffer)
+ goto exit;
+
+ return 0;
+exit:
+ hso_serial_tty_unregister(serial);
+ hso_serial_common_free(serial);
+ return -1;
+}
+
+/* Creates a general hso device */
+static struct hso_device *hso_create_device(struct usb_interface *intf,
+ int port_spec)
+{
+ struct hso_device *hso_dev;
+
+ hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC);
+ if (!hso_dev)
+ return NULL;
+
+ hso_dev->port_spec = port_spec;
+ hso_dev->usb = interface_to_usbdev(intf);
+ hso_dev->interface = intf;
+ kref_init(&hso_dev->ref);
+ mutex_init(&hso_dev->mutex);
+
+ INIT_WORK(&hso_dev->async_get_intf, async_get_intf);
+ INIT_WORK(&hso_dev->async_put_intf, async_put_intf);
+
+ return hso_dev;
+}
+
+/* Removes a network device in the network device table */
+static int remove_net_device(struct hso_device *hso_dev)
+{
+ int i;
+
+ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+ if (network_table[i] == hso_dev) {
+ network_table[i] = NULL;
+ break;
+ }
+ }
+ if (i == HSO_MAX_NET_DEVICES)
+ return -1;
+ return 0;
+}
+
+/* Frees our network device */
+static void hso_free_net_device(struct hso_device *hso_dev)
+{
+ int i;
+ struct hso_net *hso_net = dev2net(hso_dev);
+
+ if (!hso_net)
+ return;
+
+ remove_net_device(hso_net->parent);
+
+ if (hso_net->net)
+ unregister_netdev(hso_net->net);
+
+ /* start freeing */
+ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+ usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]);
+ kfree(hso_net->mux_bulk_rx_buf_pool[i]);
+ hso_net->mux_bulk_rx_buf_pool[i] = NULL;
+ }
+ usb_free_urb(hso_net->mux_bulk_tx_urb);
+ kfree(hso_net->mux_bulk_tx_buf);
+ hso_net->mux_bulk_tx_buf = NULL;
+
+ if (hso_net->net)
+ free_netdev(hso_net->net);
+
+ kfree(hso_dev);
+}
+
+static const struct net_device_ops hso_netdev_ops = {
+ .ndo_open = hso_net_open,
+ .ndo_stop = hso_net_close,
+ .ndo_start_xmit = hso_net_start_xmit,
+ .ndo_tx_timeout = hso_net_tx_timeout,
+};
+
+/* initialize the network interface */
+static void hso_net_init(struct net_device *net)
+{
+ struct hso_net *hso_net = netdev_priv(net);
+
+ D1("sizeof hso_net is %d", (int)sizeof(*hso_net));
+
+ /* fill in the other fields */
+ net->netdev_ops = &hso_netdev_ops;
+ net->watchdog_timeo = HSO_NET_TX_TIMEOUT;
+ net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+ net->type = ARPHRD_NONE;
+ net->mtu = DEFAULT_MTU - 14;
+ net->tx_queue_len = 10;
+ net->ethtool_ops = &ops;
+
+ /* and initialize the semaphore */
+ spin_lock_init(&hso_net->net_lock);
+}
+
+/* Adds a network device in the network device table */
+static int add_net_device(struct hso_device *hso_dev)
+{
+ int i;
+
+ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+ if (network_table[i] == NULL) {
+ network_table[i] = hso_dev;
+ break;
+ }
+ }
+ if (i == HSO_MAX_NET_DEVICES)
+ return -1;
+ return 0;
+}
+
+static int hso_rfkill_set_block(void *data, bool blocked)
+{
+ struct hso_device *hso_dev = data;
+ int enabled = !blocked;
+ int rv;
+
+ mutex_lock(&hso_dev->mutex);
+ if (hso_dev->usb_gone)
+ rv = 0;
+ else
+ rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0),
+ enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ mutex_unlock(&hso_dev->mutex);
+ return rv;
+}
+
+static const struct rfkill_ops hso_rfkill_ops = {
+ .set_block = hso_rfkill_set_block,
+};
+
+/* Creates and sets up everything for rfkill */
+static void hso_create_rfkill(struct hso_device *hso_dev,
+ struct usb_interface *interface)
+{
+ struct hso_net *hso_net = dev2net(hso_dev);
+ struct device *dev = &hso_net->net->dev;
+ static u32 rfkill_counter;
+
+ snprintf(hso_net->name, sizeof(hso_net->name), "hso-%d",
+ rfkill_counter++);
+
+ hso_net->rfkill = rfkill_alloc(hso_net->name,
+ &interface_to_usbdev(interface)->dev,
+ RFKILL_TYPE_WWAN,
+ &hso_rfkill_ops, hso_dev);
+ if (!hso_net->rfkill) {
+ dev_err(dev, "%s - Out of memory\n", __func__);
+ return;
+ }
+ if (rfkill_register(hso_net->rfkill) < 0) {
+ rfkill_destroy(hso_net->rfkill);
+ hso_net->rfkill = NULL;
+ dev_err(dev, "%s - Failed to register rfkill\n", __func__);
+ return;
+ }
+}
+
+static struct device_type hso_type = {
+ .name = "wwan",
+};
+
+/* Creates our network device */
+static struct hso_device *hso_create_net_device(struct usb_interface *interface,
+ int port_spec)
+{
+ int result, i;
+ struct net_device *net;
+ struct hso_net *hso_net;
+ struct hso_device *hso_dev;
+
+ hso_dev = hso_create_device(interface, port_spec);
+ if (!hso_dev)
+ return NULL;
+
+ /* allocate our network device, then we can put in our private data */
+ /* call hso_net_init to do the basic initialization */
+ net = alloc_netdev(sizeof(struct hso_net), "hso%d", NET_NAME_UNKNOWN,
+ hso_net_init);
+ if (!net) {
+ dev_err(&interface->dev, "Unable to create ethernet device\n");
+ goto exit;
+ }
+
+ hso_net = netdev_priv(net);
+
+ hso_dev->port_data.dev_net = hso_net;
+ hso_net->net = net;
+ hso_net->parent = hso_dev;
+
+ hso_net->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+ USB_DIR_IN);
+ if (!hso_net->in_endp) {
+ dev_err(&interface->dev, "Can't find BULK IN endpoint\n");
+ goto exit;
+ }
+ hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+ USB_DIR_OUT);
+ if (!hso_net->out_endp) {
+ dev_err(&interface->dev, "Can't find BULK OUT endpoint\n");
+ goto exit;
+ }
+ SET_NETDEV_DEV(net, &interface->dev);
+ SET_NETDEV_DEVTYPE(net, &hso_type);
+
+ /* registering our net device */
+ result = register_netdev(net);
+ if (result) {
+ dev_err(&interface->dev, "Failed to register device\n");
+ goto exit;
+ }
+
+ /* start allocating */
+ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+ hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!hso_net->mux_bulk_rx_urb_pool[i]) {
+ dev_err(&interface->dev, "Could not allocate rx urb\n");
+ goto exit;
+ }
+ hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE,
+ GFP_KERNEL);
+ if (!hso_net->mux_bulk_rx_buf_pool[i])
+ goto exit;
+ }
+ hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!hso_net->mux_bulk_tx_urb) {
+ dev_err(&interface->dev, "Could not allocate tx urb\n");
+ goto exit;
+ }
+ hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL);
+ if (!hso_net->mux_bulk_tx_buf)
+ goto exit;
+
+ add_net_device(hso_dev);
+
+ hso_log_port(hso_dev);
+
+ hso_create_rfkill(hso_dev, interface);
+
+ return hso_dev;
+exit:
+ hso_free_net_device(hso_dev);
+ return NULL;
+}
+
+static void hso_free_tiomget(struct hso_serial *serial)
+{
+ struct hso_tiocmget *tiocmget;
+ if (!serial)
+ return;
+ tiocmget = serial->tiocmget;
+ if (tiocmget) {
+ usb_free_urb(tiocmget->urb);
+ tiocmget->urb = NULL;
+ serial->tiocmget = NULL;
+ kfree(tiocmget);
+ }
+}
+
+/* Frees an AT channel ( goes for both mux and non-mux ) */
+static void hso_free_serial_device(struct hso_device *hso_dev)
+{
+ struct hso_serial *serial = dev2ser(hso_dev);
+
+ if (!serial)
+ return;
+
+ hso_serial_common_free(serial);
+
+ if (serial->shared_int) {
+ mutex_lock(&serial->shared_int->shared_int_lock);
+ if (--serial->shared_int->ref_count == 0)
+ hso_free_shared_int(serial->shared_int);
+ else
+ mutex_unlock(&serial->shared_int->shared_int_lock);
+ }
+ hso_free_tiomget(serial);
+ kfree(serial);
+ kfree(hso_dev);
+}
+
+/* Creates a bulk AT channel */
+static struct hso_device *hso_create_bulk_serial_device(
+ struct usb_interface *interface, int port)
+{
+ struct hso_device *hso_dev;
+ struct hso_serial *serial;
+ int num_urbs;
+ struct hso_tiocmget *tiocmget;
+
+ hso_dev = hso_create_device(interface, port);
+ if (!hso_dev)
+ return NULL;
+
+ serial = kzalloc(sizeof(*serial), GFP_KERNEL);
+ if (!serial)
+ goto exit;
+
+ serial->parent = hso_dev;
+ hso_dev->port_data.dev_serial = serial;
+
+ if ((port & HSO_PORT_MASK) == HSO_PORT_MODEM) {
+ num_urbs = 2;
+ serial->tiocmget = kzalloc(sizeof(struct hso_tiocmget),
+ GFP_KERNEL);
+ /* it isn't going to break our heart if serial->tiocmget
+ * allocation fails don't bother checking this.
+ */
+ if (serial->tiocmget) {
+ tiocmget = serial->tiocmget;
+ tiocmget->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (tiocmget->urb) {
+ mutex_init(&tiocmget->mutex);
+ init_waitqueue_head(&tiocmget->waitq);
+ tiocmget->endp = hso_get_ep(
+ interface,
+ USB_ENDPOINT_XFER_INT,
+ USB_DIR_IN);
+ } else
+ hso_free_tiomget(serial);
+ }
+ }
+ else
+ num_urbs = 1;
+
+ if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE,
+ BULK_URB_TX_SIZE))
+ goto exit;
+
+ serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+ USB_DIR_IN);
+ if (!serial->in_endp) {
+ dev_err(&interface->dev, "Failed to find BULK IN ep\n");
+ goto exit2;
+ }
+
+ if (!
+ (serial->out_endp =
+ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
+ dev_err(&interface->dev, "Failed to find BULK IN ep\n");
+ goto exit2;
+ }
+
+ serial->write_data = hso_std_serial_write_data;
+
+ /* and record this serial */
+ set_serial_by_index(serial->minor, serial);
+
+ /* setup the proc dirs and files if needed */
+ hso_log_port(hso_dev);
+
+ /* done, return it */
+ return hso_dev;
+
+exit2:
+ hso_serial_tty_unregister(serial);
+ hso_serial_common_free(serial);
+exit:
+ hso_free_tiomget(serial);
+ kfree(serial);
+ kfree(hso_dev);
+ return NULL;
+}
+
+/* Creates a multiplexed AT channel */
+static
+struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface,
+ int port,
+ struct hso_shared_int *mux)
+{
+ struct hso_device *hso_dev;
+ struct hso_serial *serial;
+ int port_spec;
+
+ port_spec = HSO_INTF_MUX;
+ port_spec &= ~HSO_PORT_MASK;
+
+ port_spec |= hso_mux_to_port(port);
+ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NO_PORT)
+ return NULL;
+
+ hso_dev = hso_create_device(interface, port_spec);
+ if (!hso_dev)
+ return NULL;
+
+ serial = kzalloc(sizeof(*serial), GFP_KERNEL);
+ if (!serial)
+ goto exit;
+
+ hso_dev->port_data.dev_serial = serial;
+ serial->parent = hso_dev;
+
+ if (hso_serial_common_create
+ (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE))
+ goto exit;
+
+ serial->tx_data_length--;
+ serial->write_data = hso_mux_serial_write_data;
+
+ serial->shared_int = mux;
+ mutex_lock(&serial->shared_int->shared_int_lock);
+ serial->shared_int->ref_count++;
+ mutex_unlock(&serial->shared_int->shared_int_lock);
+
+ /* and record this serial */
+ set_serial_by_index(serial->minor, serial);
+
+ /* setup the proc dirs and files if needed */
+ hso_log_port(hso_dev);
+
+ /* done, return it */
+ return hso_dev;
+
+exit:
+ if (serial) {
+ tty_unregister_device(tty_drv, serial->minor);
+ kfree(serial);
+ }
+ kfree(hso_dev);
+ return NULL;
+
+}
+
+static void hso_free_shared_int(struct hso_shared_int *mux)
+{
+ usb_free_urb(mux->shared_intr_urb);
+ kfree(mux->shared_intr_buf);
+ mutex_unlock(&mux->shared_int_lock);
+ kfree(mux);
+}
+
+static
+struct hso_shared_int *hso_create_shared_int(struct usb_interface *interface)
+{
+ struct hso_shared_int *mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+
+ if (!mux)
+ return NULL;
+
+ mux->intr_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_INT,
+ USB_DIR_IN);
+ if (!mux->intr_endp) {
+ dev_err(&interface->dev, "Can't find INT IN endpoint\n");
+ goto exit;
+ }
+
+ mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!mux->shared_intr_urb) {
+ dev_err(&interface->dev, "Could not allocate intr urb?\n");
+ goto exit;
+ }
+ mux->shared_intr_buf =
+ kzalloc(le16_to_cpu(mux->intr_endp->wMaxPacketSize),
+ GFP_KERNEL);
+ if (!mux->shared_intr_buf)
+ goto exit;
+
+ mutex_init(&mux->shared_int_lock);
+
+ return mux;
+
+exit:
+ kfree(mux->shared_intr_buf);
+ usb_free_urb(mux->shared_intr_urb);
+ kfree(mux);
+ return NULL;
+}
+
+/* Gets the port spec for a certain interface */
+static int hso_get_config_data(struct usb_interface *interface)
+{
+ struct usb_device *usbdev = interface_to_usbdev(interface);
+ u8 *config_data = kmalloc(17, GFP_KERNEL);
+ u32 if_num = interface->cur_altsetting->desc.bInterfaceNumber;
+ s32 result;
+
+ if (!config_data)
+ return -ENOMEM;
+ if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+ 0x86, 0xC0, 0, 0, config_data, 17,
+ USB_CTRL_SET_TIMEOUT) != 0x11) {
+ kfree(config_data);
+ return -EIO;
+ }
+
+ switch (config_data[if_num]) {
+ case 0x0:
+ result = 0;
+ break;
+ case 0x1:
+ result = HSO_PORT_DIAG;
+ break;
+ case 0x2:
+ result = HSO_PORT_GPS;
+ break;
+ case 0x3:
+ result = HSO_PORT_GPS_CONTROL;
+ break;
+ case 0x4:
+ result = HSO_PORT_APP;
+ break;
+ case 0x5:
+ result = HSO_PORT_APP2;
+ break;
+ case 0x6:
+ result = HSO_PORT_CONTROL;
+ break;
+ case 0x7:
+ result = HSO_PORT_NETWORK;
+ break;
+ case 0x8:
+ result = HSO_PORT_MODEM;
+ break;
+ case 0x9:
+ result = HSO_PORT_MSD;
+ break;
+ case 0xa:
+ result = HSO_PORT_PCSC;
+ break;
+ case 0xb:
+ result = HSO_PORT_VOICE;
+ break;
+ default:
+ result = 0;
+ }
+
+ if (result)
+ result |= HSO_INTF_BULK;
+
+ if (config_data[16] & 0x1)
+ result |= HSO_INFO_CRC_BUG;
+
+ kfree(config_data);
+ return result;
+}
+
+/* called once for each interface upon device insertion */
+static int hso_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ int mux, i, if_num, port_spec;
+ unsigned char port_mask;
+ struct hso_device *hso_dev = NULL;
+ struct hso_shared_int *shared_int;
+ struct hso_device *tmp_dev = NULL;
+
+ if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
+ dev_err(&interface->dev, "Not our interface\n");
+ return -ENODEV;
+ }
+
+ if_num = interface->cur_altsetting->desc.bInterfaceNumber;
+
+ /* Get the interface/port specification from either driver_info or from
+ * the device itself */
+ if (id->driver_info)
+ port_spec = ((u32 *)(id->driver_info))[if_num];
+ else
+ port_spec = hso_get_config_data(interface);
+
+ /* Check if we need to switch to alt interfaces prior to port
+ * configuration */
+ if (interface->num_altsetting > 1)
+ usb_set_interface(interface_to_usbdev(interface), if_num, 1);
+ interface->needs_remote_wakeup = 1;
+
+ /* Allocate new hso device(s) */
+ switch (port_spec & HSO_INTF_MASK) {
+ case HSO_INTF_MUX:
+ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+ /* Create the network device */
+ if (!disable_net) {
+ hso_dev = hso_create_net_device(interface,
+ port_spec);
+ if (!hso_dev)
+ goto exit;
+ tmp_dev = hso_dev;
+ }
+ }
+
+ if (hso_get_mux_ports(interface, &port_mask))
+ /* TODO: de-allocate everything */
+ goto exit;
+
+ shared_int = hso_create_shared_int(interface);
+ if (!shared_int)
+ goto exit;
+
+ for (i = 1, mux = 0; i < 0x100; i = i << 1, mux++) {
+ if (port_mask & i) {
+ hso_dev = hso_create_mux_serial_device(
+ interface, i, shared_int);
+ if (!hso_dev)
+ goto exit;
+ }
+ }
+
+ if (tmp_dev)
+ hso_dev = tmp_dev;
+ break;
+
+ case HSO_INTF_BULK:
+ /* It's a regular bulk interface */
+ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+ if (!disable_net)
+ hso_dev =
+ hso_create_net_device(interface, port_spec);
+ } else {
+ hso_dev =
+ hso_create_bulk_serial_device(interface, port_spec);
+ }
+ if (!hso_dev)
+ goto exit;
+ break;
+ default:
+ goto exit;
+ }
+
+ /* save our data pointer in this device */
+ usb_set_intfdata(interface, hso_dev);
+
+ /* done */
+ return 0;
+exit:
+ hso_free_interface(interface);
+ return -ENODEV;
+}
+
+/* device removed, cleaning up */
+static void hso_disconnect(struct usb_interface *interface)
+{
+ hso_free_interface(interface);
+
+ /* remove reference of our private data */
+ usb_set_intfdata(interface, NULL);
+}
+
+static void async_get_intf(struct work_struct *data)
+{
+ struct hso_device *hso_dev =
+ container_of(data, struct hso_device, async_get_intf);
+ usb_autopm_get_interface(hso_dev->interface);
+}
+
+static void async_put_intf(struct work_struct *data)
+{
+ struct hso_device *hso_dev =
+ container_of(data, struct hso_device, async_put_intf);
+ usb_autopm_put_interface(hso_dev->interface);
+}
+
+static int hso_get_activity(struct hso_device *hso_dev)
+{
+ if (hso_dev->usb->state == USB_STATE_SUSPENDED) {
+ if (!hso_dev->is_active) {
+ hso_dev->is_active = 1;
+ schedule_work(&hso_dev->async_get_intf);
+ }
+ }
+
+ if (hso_dev->usb->state != USB_STATE_CONFIGURED)
+ return -EAGAIN;
+
+ usb_mark_last_busy(hso_dev->usb);
+
+ return 0;
+}
+
+static int hso_put_activity(struct hso_device *hso_dev)
+{
+ if (hso_dev->usb->state != USB_STATE_SUSPENDED) {
+ if (hso_dev->is_active) {
+ hso_dev->is_active = 0;
+ schedule_work(&hso_dev->async_put_intf);
+ return -EAGAIN;
+ }
+ }
+ hso_dev->is_active = 0;
+ return 0;
+}
+
+/* called by kernel when we need to suspend device */
+static int hso_suspend(struct usb_interface *iface, pm_message_t message)
+{
+ int i, result;
+
+ /* Stop all serial ports */
+ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+ if (serial_table[i] && (serial_table[i]->interface == iface)) {
+ result = hso_stop_serial_device(serial_table[i]);
+ if (result)
+ goto out;
+ }
+ }
+
+ /* Stop all network ports */
+ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+ if (network_table[i] &&
+ (network_table[i]->interface == iface)) {
+ result = hso_stop_net_device(network_table[i]);
+ if (result)
+ goto out;
+ }
+ }
+
+out:
+ return 0;
+}
+
+/* called by kernel when we need to resume device */
+static int hso_resume(struct usb_interface *iface)
+{
+ int i, result = 0;
+ struct hso_net *hso_net;
+
+ /* Start all serial ports */
+ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+ if (serial_table[i] && (serial_table[i]->interface == iface)) {
+ if (dev2ser(serial_table[i])->port.count) {
+ result =
+ hso_start_serial_device(serial_table[i], GFP_NOIO);
+ hso_kick_transmit(dev2ser(serial_table[i]));
+ if (result)
+ goto out;
+ }
+ }
+ }
+
+ /* Start all network ports */
+ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+ if (network_table[i] &&
+ (network_table[i]->interface == iface)) {
+ hso_net = dev2net(network_table[i]);
+ if (hso_net->flags & IFF_UP) {
+ /* First transmit any lingering data,
+ then restart the device. */
+ if (hso_net->skb_tx_buf) {
+ dev_dbg(&iface->dev,
+ "Transmitting"
+ " lingering data\n");
+ hso_net_start_xmit(hso_net->skb_tx_buf,
+ hso_net->net);
+ hso_net->skb_tx_buf = NULL;
+ }
+ result = hso_start_net_device(network_table[i]);
+ if (result)
+ goto out;
+ }
+ }
+ }
+
+out:
+ return result;
+}
+
+static void hso_serial_ref_free(struct kref *ref)
+{
+ struct hso_device *hso_dev = container_of(ref, struct hso_device, ref);
+
+ hso_free_serial_device(hso_dev);
+}
+
+static void hso_free_interface(struct usb_interface *interface)
+{
+ struct hso_serial *serial;
+ int i;
+
+ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+ if (serial_table[i] &&
+ (serial_table[i]->interface == interface)) {
+ serial = dev2ser(serial_table[i]);
+ tty_port_tty_hangup(&serial->port, false);
+ mutex_lock(&serial->parent->mutex);
+ serial->parent->usb_gone = 1;
+ mutex_unlock(&serial->parent->mutex);
+ cancel_work_sync(&serial_table[i]->async_put_intf);
+ cancel_work_sync(&serial_table[i]->async_get_intf);
+ hso_serial_tty_unregister(serial);
+ kref_put(&serial_table[i]->ref, hso_serial_ref_free);
+ set_serial_by_index(i, NULL);
+ }
+ }
+
+ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+ if (network_table[i] &&
+ (network_table[i]->interface == interface)) {
+ struct rfkill *rfk = dev2net(network_table[i])->rfkill;
+ /* hso_stop_net_device doesn't stop the net queue since
+ * traffic needs to start it again when suspended */
+ netif_stop_queue(dev2net(network_table[i])->net);
+ hso_stop_net_device(network_table[i]);
+ cancel_work_sync(&network_table[i]->async_put_intf);
+ cancel_work_sync(&network_table[i]->async_get_intf);
+ if (rfk) {
+ rfkill_unregister(rfk);
+ rfkill_destroy(rfk);
+ }
+ hso_free_net_device(network_table[i]);
+ }
+ }
+}
+
+/* Helper functions */
+
+/* Get the endpoint ! */
+static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
+ int type, int dir)
+{
+ int i;
+ struct usb_host_interface *iface = intf->cur_altsetting;
+ struct usb_endpoint_descriptor *endp;
+
+ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
+ endp = &iface->endpoint[i].desc;
+ if (((endp->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == dir) &&
+ (usb_endpoint_type(endp) == type))
+ return endp;
+ }
+
+ return NULL;
+}
+
+/* Get the byte that describes which ports are enabled */
+static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports)
+{
+ int i;
+ struct usb_host_interface *iface = intf->cur_altsetting;
+
+ if (iface->extralen == 3) {
+ *ports = iface->extra[2];
+ return 0;
+ }
+
+ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
+ if (iface->endpoint[i].extralen == 3) {
+ *ports = iface->endpoint[i].extra[2];
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+/* interrupt urb needs to be submitted, used for serial read of muxed port */
+static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int,
+ struct usb_device *usb, gfp_t gfp)
+{
+ int result;
+
+ usb_fill_int_urb(shared_int->shared_intr_urb, usb,
+ usb_rcvintpipe(usb,
+ shared_int->intr_endp->bEndpointAddress & 0x7F),
+ shared_int->shared_intr_buf,
+ 1,
+ intr_callback, shared_int,
+ shared_int->intr_endp->bInterval);
+
+ result = usb_submit_urb(shared_int->shared_intr_urb, gfp);
+ if (result)
+ dev_warn(&usb->dev, "%s failed mux_intr_urb %d\n", __func__,
+ result);
+
+ return result;
+}
+
+/* operations setup of the serial interface */
+static const struct tty_operations hso_serial_ops = {
+ .open = hso_serial_open,
+ .close = hso_serial_close,
+ .write = hso_serial_write,
+ .write_room = hso_serial_write_room,
+ .cleanup = hso_serial_cleanup,
+ .ioctl = hso_serial_ioctl,
+ .set_termios = hso_serial_set_termios,
+ .chars_in_buffer = hso_serial_chars_in_buffer,
+ .tiocmget = hso_serial_tiocmget,
+ .tiocmset = hso_serial_tiocmset,
+ .get_icount = hso_get_count,
+ .unthrottle = hso_unthrottle
+};
+
+static struct usb_driver hso_driver = {
+ .name = driver_name,
+ .probe = hso_probe,
+ .disconnect = hso_disconnect,
+ .id_table = hso_ids,
+ .suspend = hso_suspend,
+ .resume = hso_resume,
+ .reset_resume = hso_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+static int __init hso_init(void)
+{
+ int i;
+ int result;
+
+ /* put it in the log */
+ printk(KERN_INFO "hso: %s\n", version);
+
+ /* Initialise the serial table semaphore and table */
+ spin_lock_init(&serial_table_lock);
+ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++)
+ serial_table[i] = NULL;
+
+ /* allocate our driver using the proper amount of supported minors */
+ tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS);
+ if (!tty_drv)
+ return -ENOMEM;
+
+ /* fill in all needed values */
+ tty_drv->driver_name = driver_name;
+ tty_drv->name = tty_filename;
+
+ /* if major number is provided as parameter, use that one */
+ if (tty_major)
+ tty_drv->major = tty_major;
+
+ tty_drv->minor_start = 0;
+ tty_drv->type = TTY_DRIVER_TYPE_SERIAL;
+ tty_drv->subtype = SERIAL_TYPE_NORMAL;
+ tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+ tty_drv->init_termios = tty_std_termios;
+ hso_init_termios(&tty_drv->init_termios);
+ tty_set_operations(tty_drv, &hso_serial_ops);
+
+ /* register the tty driver */
+ result = tty_register_driver(tty_drv);
+ if (result) {
+ printk(KERN_ERR "%s - tty_register_driver failed(%d)\n",
+ __func__, result);
+ goto err_free_tty;
+ }
+
+ /* register this module as an usb driver */
+ result = usb_register(&hso_driver);
+ if (result) {
+ printk(KERN_ERR "Could not register hso driver? error: %d\n",
+ result);
+ goto err_unreg_tty;
+ }
+
+ /* done */
+ return 0;
+err_unreg_tty:
+ tty_unregister_driver(tty_drv);
+err_free_tty:
+ put_tty_driver(tty_drv);
+ return result;
+}
+
+static void __exit hso_exit(void)
+{
+ printk(KERN_INFO "hso: unloaded\n");
+
+ tty_unregister_driver(tty_drv);
+ put_tty_driver(tty_drv);
+ /* deregister the usb driver */
+ usb_deregister(&hso_driver);
+}
+
+/* Module definitions */
+module_init(hso_init);
+module_exit(hso_exit);
+
+MODULE_AUTHOR(MOD_AUTHOR);
+MODULE_DESCRIPTION(MOD_DESCRIPTION);
+MODULE_LICENSE(MOD_LICENSE);
+
+/* change the debug level (eg: insmod hso.ko debug=0x04) */
+MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]");
+module_param(debug, int, S_IRUGO | S_IWUSR);
+
+/* set the major tty number (eg: insmod hso.ko tty_major=245) */
+MODULE_PARM_DESC(tty_major, "Set the major tty number");
+module_param(tty_major, int, S_IRUGO | S_IWUSR);
+
+/* disable network interface (eg: insmod hso.ko disable_net=1) */
+MODULE_PARM_DESC(disable_net, "Disable the network interface");
+module_param(disable_net, int, S_IRUGO | S_IWUSR);
diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c
new file mode 100644
index 0000000..63f2890
--- /dev/null
+++ b/drivers/net/usb/huawei_cdc_ncm.c
@@ -0,0 +1,230 @@
+/* huawei_cdc_ncm.c - handles Huawei devices using the CDC NCM protocol as
+ * transport layer.
+ * Copyright (C) 2013 Enrico Mioso <mrkiko.rs@gmail.com>
+ *
+ *
+ * ABSTRACT:
+ * This driver handles devices resembling the CDC NCM standard, but
+ * encapsulating another protocol inside it. An example are some Huawei 3G
+ * devices, exposing an embedded AT channel where you can set up the NCM
+ * connection.
+ * This code has been heavily inspired by the cdc_mbim.c driver, which is
+ * Copyright (c) 2012 Smith Micro Software, Inc.
+ * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc-wdm.h>
+#include <linux/usb/cdc_ncm.h>
+
+/* Driver data */
+struct huawei_cdc_ncm_state {
+ struct cdc_ncm_ctx *ctx;
+ atomic_t pmcount;
+ struct usb_driver *subdriver;
+ struct usb_interface *control;
+ struct usb_interface *data;
+};
+
+static int huawei_cdc_ncm_manage_power(struct usbnet *usbnet_dev, int on)
+{
+ struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+ int rv;
+
+ if ((on && atomic_add_return(1, &drvstate->pmcount) == 1) ||
+ (!on && atomic_dec_and_test(&drvstate->pmcount))) {
+ rv = usb_autopm_get_interface(usbnet_dev->intf);
+ usbnet_dev->intf->needs_remote_wakeup = on;
+ if (!rv)
+ usb_autopm_put_interface(usbnet_dev->intf);
+ }
+ return 0;
+}
+
+static int huawei_cdc_ncm_wdm_manage_power(struct usb_interface *intf,
+ int status)
+{
+ struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+
+ /* can be called while disconnecting */
+ if (!usbnet_dev)
+ return 0;
+
+ return huawei_cdc_ncm_manage_power(usbnet_dev, status);
+}
+
+
+static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev,
+ struct usb_interface *intf)
+{
+ struct cdc_ncm_ctx *ctx;
+ struct usb_driver *subdriver = ERR_PTR(-ENODEV);
+ int ret = -ENODEV;
+ struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+ int drvflags = 0;
+
+ /* altsetting should always be 1 for NCM devices - so we hard-coded
+ * it here. Some huawei devices will need the NDP part of the NCM package to
+ * be at the end of the frame.
+ */
+ drvflags |= CDC_NCM_FLAG_NDP_TO_END;
+
+ /* Additionally, it has been reported that some Huawei E3372H devices, with
+ * firmware version 21.318.01.00.541, come out of reset in NTB32 format mode, hence
+ * needing to be set to the NTB16 one again.
+ */
+ drvflags |= CDC_NCM_FLAG_RESET_NTB16;
+ ret = cdc_ncm_bind_common(usbnet_dev, intf, 1, drvflags);
+ if (ret)
+ goto err;
+
+ ctx = drvstate->ctx;
+
+ if (usbnet_dev->status)
+ /* The wMaxCommand buffer must be big enough to hold
+ * any message from the modem. Experience has shown
+ * that some replies are more than 256 bytes long
+ */
+ subdriver = usb_cdc_wdm_register(ctx->control,
+ &usbnet_dev->status->desc,
+ 1024, /* wMaxCommand */
+ huawei_cdc_ncm_wdm_manage_power);
+ if (IS_ERR(subdriver)) {
+ ret = PTR_ERR(subdriver);
+ cdc_ncm_unbind(usbnet_dev, intf);
+ goto err;
+ }
+
+ /* Prevent usbnet from using the status descriptor */
+ usbnet_dev->status = NULL;
+
+ drvstate->subdriver = subdriver;
+
+err:
+ return ret;
+}
+
+static void huawei_cdc_ncm_unbind(struct usbnet *usbnet_dev,
+ struct usb_interface *intf)
+{
+ struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+ struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+ if (drvstate->subdriver && drvstate->subdriver->disconnect)
+ drvstate->subdriver->disconnect(ctx->control);
+ drvstate->subdriver = NULL;
+
+ cdc_ncm_unbind(usbnet_dev, intf);
+}
+
+static int huawei_cdc_ncm_suspend(struct usb_interface *intf,
+ pm_message_t message)
+{
+ int ret = 0;
+ struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+ struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+ struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+ if (ctx == NULL) {
+ ret = -ENODEV;
+ goto error;
+ }
+
+ ret = usbnet_suspend(intf, message);
+ if (ret < 0)
+ goto error;
+
+ if (intf == ctx->control &&
+ drvstate->subdriver &&
+ drvstate->subdriver->suspend)
+ ret = drvstate->subdriver->suspend(intf, message);
+ if (ret < 0)
+ usbnet_resume(intf);
+
+error:
+ return ret;
+}
+
+static int huawei_cdc_ncm_resume(struct usb_interface *intf)
+{
+ int ret = 0;
+ struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+ struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+ bool callsub;
+ struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+ /* should we call subdriver's resume function? */
+ callsub =
+ (intf == ctx->control &&
+ drvstate->subdriver &&
+ drvstate->subdriver->resume);
+
+ if (callsub)
+ ret = drvstate->subdriver->resume(intf);
+ if (ret < 0)
+ goto err;
+ ret = usbnet_resume(intf);
+ if (ret < 0 && callsub)
+ drvstate->subdriver->suspend(intf, PMSG_SUSPEND);
+err:
+ return ret;
+}
+
+static const struct driver_info huawei_cdc_ncm_info = {
+ .description = "Huawei CDC NCM device",
+ .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
+ .bind = huawei_cdc_ncm_bind,
+ .unbind = huawei_cdc_ncm_unbind,
+ .manage_power = huawei_cdc_ncm_manage_power,
+ .rx_fixup = cdc_ncm_rx_fixup,
+ .tx_fixup = cdc_ncm_tx_fixup,
+};
+
+static const struct usb_device_id huawei_cdc_ncm_devs[] = {
+ /* Huawei NCM devices disguised as vendor specific */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
+ .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+ },
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46),
+ .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+ },
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x76),
+ .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+ },
+ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x03, 0x16),
+ .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+ },
+
+ /* Terminating entry */
+ {
+ },
+};
+MODULE_DEVICE_TABLE(usb, huawei_cdc_ncm_devs);
+
+static struct usb_driver huawei_cdc_ncm_driver = {
+ .name = "huawei_cdc_ncm",
+ .id_table = huawei_cdc_ncm_devs,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = huawei_cdc_ncm_suspend,
+ .resume = huawei_cdc_ncm_resume,
+ .reset_resume = huawei_cdc_ncm_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(huawei_cdc_ncm_driver);
+MODULE_AUTHOR("Enrico Mioso <mrkiko.rs@gmail.com>");
+MODULE_DESCRIPTION("USB CDC NCM host driver with encapsulated protocol support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/int51x1.c b/drivers/net/usb/int51x1.c
new file mode 100644
index 0000000..4ff70b2
--- /dev/null
+++ b/drivers/net/usb/int51x1.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2009 Peter Holik
+ *
+ * Intellon usb PLC (Powerline Communications) usb net driver
+ *
+ * http://www.tandel.be/downloads/INT51X1_Datasheet.pdf
+ *
+ * Based on the work of Jan 'RedBully' Seiffert
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or.
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/slab.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+
+#define INT51X1_VENDOR_ID 0x09e1
+#define INT51X1_PRODUCT_ID 0x5121
+
+#define INT51X1_HEADER_SIZE 2 /* 2 byte header */
+
+#define PACKET_TYPE_PROMISCUOUS (1 << 0)
+#define PACKET_TYPE_ALL_MULTICAST (1 << 1) /* no filter */
+#define PACKET_TYPE_DIRECTED (1 << 2)
+#define PACKET_TYPE_BROADCAST (1 << 3)
+#define PACKET_TYPE_MULTICAST (1 << 4) /* filtered */
+
+#define SET_ETHERNET_PACKET_FILTER 0x43
+
+static int int51x1_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int len;
+
+ if (!(pskb_may_pull(skb, INT51X1_HEADER_SIZE))) {
+ netdev_err(dev->net, "unexpected tiny rx frame\n");
+ return 0;
+ }
+
+ len = le16_to_cpu(*(__le16 *)&skb->data[skb->len - 2]);
+
+ skb_trim(skb, len);
+
+ return 1;
+}
+
+static struct sk_buff *int51x1_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ int pack_len = skb->len;
+ int pack_with_header_len = pack_len + INT51X1_HEADER_SIZE;
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+ int need_tail = 0;
+ __le16 *len;
+
+ /* if packet and our header is smaler than 64 pad to 64 (+ ZLP) */
+ if ((pack_with_header_len) < dev->maxpacket)
+ need_tail = dev->maxpacket - pack_with_header_len + 1;
+ /*
+ * usbnet would send a ZLP if packetlength mod urbsize == 0 for us,
+ * but we need to know ourself, because this would add to the length
+ * we send down to the device...
+ */
+ else if (!(pack_with_header_len % dev->maxpacket))
+ need_tail = 1;
+
+ if (!skb_cloned(skb) &&
+ (headroom + tailroom >= need_tail + INT51X1_HEADER_SIZE)) {
+ if (headroom < INT51X1_HEADER_SIZE || tailroom < need_tail) {
+ skb->data = memmove(skb->head + INT51X1_HEADER_SIZE,
+ skb->data, skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ }
+ } else {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb,
+ INT51X1_HEADER_SIZE,
+ need_tail,
+ flags);
+ dev_kfree_skb_any(skb);
+ if (!skb2)
+ return NULL;
+ skb = skb2;
+ }
+
+ pack_len += need_tail;
+ pack_len &= 0x07ff;
+
+ len = (__le16 *) __skb_push(skb, INT51X1_HEADER_SIZE);
+ *len = cpu_to_le16(pack_len);
+
+ if(need_tail)
+ memset(__skb_put(skb, need_tail), 0, need_tail);
+
+ return skb;
+}
+
+static void int51x1_set_multicast(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 filter = PACKET_TYPE_DIRECTED | PACKET_TYPE_BROADCAST;
+
+ if (netdev->flags & IFF_PROMISC) {
+ /* do not expect to see traffic of other PLCs */
+ filter |= PACKET_TYPE_PROMISCUOUS;
+ netdev_info(dev->net, "promiscuous mode enabled\n");
+ } else if (!netdev_mc_empty(netdev) ||
+ (netdev->flags & IFF_ALLMULTI)) {
+ filter |= PACKET_TYPE_ALL_MULTICAST;
+ netdev_dbg(dev->net, "receive all multicast enabled\n");
+ } else {
+ /* ~PROMISCUOUS, ~MULTICAST */
+ netdev_dbg(dev->net, "receive own packets only\n");
+ }
+
+ usbnet_write_cmd_async(dev, SET_ETHERNET_PACKET_FILTER,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ filter, 0, NULL, 0);
+}
+
+static const struct net_device_ops int51x1_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = int51x1_set_multicast,
+};
+
+static int int51x1_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status = usbnet_get_ethernet_addr(dev, 3);
+
+ if (status)
+ return status;
+
+ dev->net->hard_header_len += INT51X1_HEADER_SIZE;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+ dev->net->netdev_ops = &int51x1_netdev_ops;
+
+ return usbnet_get_endpoints(dev, intf);
+}
+
+static const struct driver_info int51x1_info = {
+ .description = "Intellon usb powerline adapter",
+ .bind = int51x1_bind,
+ .rx_fixup = int51x1_rx_fixup,
+ .tx_fixup = int51x1_tx_fixup,
+ .in = 1,
+ .out = 2,
+ .flags = FLAG_ETHER,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE(INT51X1_VENDOR_ID, INT51X1_PRODUCT_ID),
+ .driver_info = (unsigned long) &int51x1_info,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver int51x1_driver = {
+ .name = "int51x1",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(int51x1_driver);
+
+MODULE_AUTHOR("Peter Holik");
+MODULE_DESCRIPTION("Intellon usb powerline adapter");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
new file mode 100644
index 0000000..76465b1
--- /dev/null
+++ b/drivers/net/usb/ipheth.c
@@ -0,0 +1,588 @@
+/*
+ * ipheth.c - Apple iPhone USB Ethernet driver
+ *
+ * Copyright (c) 2009 Diego Giagio <diego@giagio.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of GIAGIO.COM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ *
+ * Attention: iPhone device must be paired, otherwise it won't respond to our
+ * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/workqueue.h>
+
+#define USB_VENDOR_APPLE 0x05ac
+#define USB_PRODUCT_IPHONE 0x1290
+#define USB_PRODUCT_IPHONE_3G 0x1292
+#define USB_PRODUCT_IPHONE_3GS 0x1294
+#define USB_PRODUCT_IPHONE_4 0x1297
+#define USB_PRODUCT_IPAD 0x129a
+#define USB_PRODUCT_IPAD_2 0x12a2
+#define USB_PRODUCT_IPAD_3 0x12a6
+#define USB_PRODUCT_IPAD_MINI 0x12ab
+#define USB_PRODUCT_IPHONE_4_VZW 0x129c
+#define USB_PRODUCT_IPHONE_4S 0x12a0
+#define USB_PRODUCT_IPHONE_5 0x12a8
+
+#define IPHETH_USBINTF_CLASS 255
+#define IPHETH_USBINTF_SUBCLASS 253
+#define IPHETH_USBINTF_PROTO 1
+
+#define IPHETH_BUF_SIZE 1516
+#define IPHETH_IP_ALIGN 2 /* padding at front of URB */
+#define IPHETH_TX_TIMEOUT (5 * HZ)
+
+#define IPHETH_INTFNUM 2
+#define IPHETH_ALT_INTFNUM 1
+
+#define IPHETH_CTRL_ENDP 0x00
+#define IPHETH_CTRL_BUF_SIZE 0x40
+#define IPHETH_CTRL_TIMEOUT (5 * HZ)
+
+#define IPHETH_CMD_GET_MACADDR 0x00
+#define IPHETH_CMD_CARRIER_CHECK 0x45
+
+#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ)
+#define IPHETH_CARRIER_ON 0x04
+
+static struct usb_device_id ipheth_table[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPAD,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPAD_2,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPAD_3,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPAD_MINI,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { USB_DEVICE_AND_INTERFACE_INFO(
+ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_5,
+ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+ IPHETH_USBINTF_PROTO) },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, ipheth_table);
+
+struct ipheth_device {
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ struct net_device *net;
+ struct sk_buff *tx_skb;
+ struct urb *tx_urb;
+ struct urb *rx_urb;
+ unsigned char *tx_buf;
+ unsigned char *rx_buf;
+ unsigned char *ctrl_buf;
+ u8 bulk_in;
+ u8 bulk_out;
+ struct delayed_work carrier_work;
+};
+
+static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
+
+static int ipheth_alloc_urbs(struct ipheth_device *iphone)
+{
+ struct urb *tx_urb = NULL;
+ struct urb *rx_urb = NULL;
+ u8 *tx_buf = NULL;
+ u8 *rx_buf = NULL;
+
+ tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (tx_urb == NULL)
+ goto error_nomem;
+
+ rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (rx_urb == NULL)
+ goto free_tx_urb;
+
+ tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
+ GFP_KERNEL, &tx_urb->transfer_dma);
+ if (tx_buf == NULL)
+ goto free_rx_urb;
+
+ rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
+ GFP_KERNEL, &rx_urb->transfer_dma);
+ if (rx_buf == NULL)
+ goto free_tx_buf;
+
+
+ iphone->tx_urb = tx_urb;
+ iphone->rx_urb = rx_urb;
+ iphone->tx_buf = tx_buf;
+ iphone->rx_buf = rx_buf;
+ return 0;
+
+free_tx_buf:
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
+ tx_urb->transfer_dma);
+free_rx_urb:
+ usb_free_urb(rx_urb);
+free_tx_urb:
+ usb_free_urb(tx_urb);
+error_nomem:
+ return -ENOMEM;
+}
+
+static void ipheth_free_urbs(struct ipheth_device *iphone)
+{
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
+ iphone->rx_urb->transfer_dma);
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
+ iphone->tx_urb->transfer_dma);
+ usb_free_urb(iphone->rx_urb);
+ usb_free_urb(iphone->tx_urb);
+}
+
+static void ipheth_kill_urbs(struct ipheth_device *dev)
+{
+ usb_kill_urb(dev->tx_urb);
+ usb_kill_urb(dev->rx_urb);
+}
+
+static void ipheth_rcvbulk_callback(struct urb *urb)
+{
+ struct ipheth_device *dev;
+ struct sk_buff *skb;
+ int status;
+ char *buf;
+ int len;
+
+ dev = urb->context;
+ if (dev == NULL)
+ return;
+
+ status = urb->status;
+ switch (status) {
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ return;
+ case 0:
+ break;
+ default:
+ dev_err(&dev->intf->dev, "%s: urb status: %d\n",
+ __func__, status);
+ return;
+ }
+
+ if (urb->actual_length <= IPHETH_IP_ALIGN) {
+ dev->net->stats.rx_length_errors++;
+ return;
+ }
+ len = urb->actual_length - IPHETH_IP_ALIGN;
+ buf = urb->transfer_buffer + IPHETH_IP_ALIGN;
+
+ skb = dev_alloc_skb(len);
+ if (!skb) {
+ dev_err(&dev->intf->dev, "%s: dev_alloc_skb: -ENOMEM\n",
+ __func__);
+ dev->net->stats.rx_dropped++;
+ return;
+ }
+
+ memcpy(skb_put(skb, len), buf, len);
+ skb->dev = dev->net;
+ skb->protocol = eth_type_trans(skb, dev->net);
+
+ dev->net->stats.rx_packets++;
+ dev->net->stats.rx_bytes += len;
+
+ netif_rx(skb);
+ ipheth_rx_submit(dev, GFP_ATOMIC);
+}
+
+static void ipheth_sndbulk_callback(struct urb *urb)
+{
+ struct ipheth_device *dev;
+ int status = urb->status;
+
+ dev = urb->context;
+ if (dev == NULL)
+ return;
+
+ if (status != 0 &&
+ status != -ENOENT &&
+ status != -ECONNRESET &&
+ status != -ESHUTDOWN)
+ dev_err(&dev->intf->dev, "%s: urb status: %d\n",
+ __func__, status);
+
+ dev_kfree_skb_irq(dev->tx_skb);
+ netif_wake_queue(dev->net);
+}
+
+static int ipheth_carrier_set(struct ipheth_device *dev)
+{
+ struct usb_device *udev = dev->udev;
+ int retval;
+
+ retval = usb_control_msg(udev,
+ usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
+ IPHETH_CMD_CARRIER_CHECK, /* request */
+ 0xc0, /* request type */
+ 0x00, /* value */
+ 0x02, /* index */
+ dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
+ IPHETH_CTRL_TIMEOUT);
+ if (retval < 0) {
+ dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n",
+ __func__, retval);
+ return retval;
+ }
+
+ if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
+ netif_carrier_on(dev->net);
+ else
+ netif_carrier_off(dev->net);
+
+ return 0;
+}
+
+static void ipheth_carrier_check_work(struct work_struct *work)
+{
+ struct ipheth_device *dev = container_of(work, struct ipheth_device,
+ carrier_work.work);
+
+ ipheth_carrier_set(dev);
+ schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
+}
+
+static int ipheth_get_macaddr(struct ipheth_device *dev)
+{
+ struct usb_device *udev = dev->udev;
+ struct net_device *net = dev->net;
+ int retval;
+
+ retval = usb_control_msg(udev,
+ usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
+ IPHETH_CMD_GET_MACADDR, /* request */
+ 0xc0, /* request type */
+ 0x00, /* value */
+ 0x02, /* index */
+ dev->ctrl_buf,
+ IPHETH_CTRL_BUF_SIZE,
+ IPHETH_CTRL_TIMEOUT);
+ if (retval < 0) {
+ dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n",
+ __func__, retval);
+ } else if (retval < ETH_ALEN) {
+ dev_err(&dev->intf->dev,
+ "%s: usb_control_msg: short packet: %d bytes\n",
+ __func__, retval);
+ retval = -EINVAL;
+ } else {
+ memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN);
+ retval = 0;
+ }
+
+ return retval;
+}
+
+static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
+{
+ struct usb_device *udev = dev->udev;
+ int retval;
+
+ usb_fill_bulk_urb(dev->rx_urb, udev,
+ usb_rcvbulkpipe(udev, dev->bulk_in),
+ dev->rx_buf, IPHETH_BUF_SIZE,
+ ipheth_rcvbulk_callback,
+ dev);
+ dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ retval = usb_submit_urb(dev->rx_urb, mem_flags);
+ if (retval)
+ dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n",
+ __func__, retval);
+ return retval;
+}
+
+static int ipheth_open(struct net_device *net)
+{
+ struct ipheth_device *dev = netdev_priv(net);
+ struct usb_device *udev = dev->udev;
+ int retval = 0;
+
+ usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM);
+
+ retval = ipheth_carrier_set(dev);
+ if (retval)
+ return retval;
+
+ retval = ipheth_rx_submit(dev, GFP_KERNEL);
+ if (retval)
+ return retval;
+
+ schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
+ netif_start_queue(net);
+ return retval;
+}
+
+static int ipheth_close(struct net_device *net)
+{
+ struct ipheth_device *dev = netdev_priv(net);
+
+ cancel_delayed_work_sync(&dev->carrier_work);
+ netif_stop_queue(net);
+ return 0;
+}
+
+static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
+{
+ struct ipheth_device *dev = netdev_priv(net);
+ struct usb_device *udev = dev->udev;
+ int retval;
+
+ /* Paranoid */
+ if (skb->len > IPHETH_BUF_SIZE) {
+ WARN(1, "%s: skb too large: %d bytes\n", __func__, skb->len);
+ dev->net->stats.tx_dropped++;
+ dev_kfree_skb_irq(skb);
+ return NETDEV_TX_OK;
+ }
+
+ memcpy(dev->tx_buf, skb->data, skb->len);
+ if (skb->len < IPHETH_BUF_SIZE)
+ memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len);
+
+ usb_fill_bulk_urb(dev->tx_urb, udev,
+ usb_sndbulkpipe(udev, dev->bulk_out),
+ dev->tx_buf, IPHETH_BUF_SIZE,
+ ipheth_sndbulk_callback,
+ dev);
+ dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
+ if (retval) {
+ dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n",
+ __func__, retval);
+ dev->net->stats.tx_errors++;
+ dev_kfree_skb_irq(skb);
+ } else {
+ dev->tx_skb = skb;
+
+ dev->net->stats.tx_packets++;
+ dev->net->stats.tx_bytes += skb->len;
+ netif_stop_queue(net);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static void ipheth_tx_timeout(struct net_device *net)
+{
+ struct ipheth_device *dev = netdev_priv(net);
+
+ dev_err(&dev->intf->dev, "%s: TX timeout\n", __func__);
+ dev->net->stats.tx_errors++;
+ usb_unlink_urb(dev->tx_urb);
+}
+
+static u32 ipheth_ethtool_op_get_link(struct net_device *net)
+{
+ struct ipheth_device *dev = netdev_priv(net);
+ return netif_carrier_ok(dev->net);
+}
+
+static const struct ethtool_ops ops = {
+ .get_link = ipheth_ethtool_op_get_link
+};
+
+static const struct net_device_ops ipheth_netdev_ops = {
+ .ndo_open = ipheth_open,
+ .ndo_stop = ipheth_close,
+ .ndo_start_xmit = ipheth_tx,
+ .ndo_tx_timeout = ipheth_tx_timeout,
+};
+
+static int ipheth_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct usb_host_interface *hintf;
+ struct usb_endpoint_descriptor *endp;
+ struct ipheth_device *dev;
+ struct net_device *netdev;
+ int i;
+ int retval;
+
+ netdev = alloc_etherdev(sizeof(struct ipheth_device));
+ if (!netdev)
+ return -ENOMEM;
+
+ netdev->netdev_ops = &ipheth_netdev_ops;
+ netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
+ strcpy(netdev->name, "eth%d");
+
+ dev = netdev_priv(netdev);
+ dev->udev = udev;
+ dev->net = netdev;
+ dev->intf = intf;
+
+ /* Set up endpoints */
+ hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
+ if (hintf == NULL) {
+ retval = -ENODEV;
+ dev_err(&intf->dev, "Unable to find alternate settings interface\n");
+ goto err_endpoints;
+ }
+
+ for (i = 0; i < hintf->desc.bNumEndpoints; i++) {
+ endp = &hintf->endpoint[i].desc;
+ if (usb_endpoint_is_bulk_in(endp))
+ dev->bulk_in = endp->bEndpointAddress;
+ else if (usb_endpoint_is_bulk_out(endp))
+ dev->bulk_out = endp->bEndpointAddress;
+ }
+ if (!(dev->bulk_in && dev->bulk_out)) {
+ retval = -ENODEV;
+ dev_err(&intf->dev, "Unable to find endpoints\n");
+ goto err_endpoints;
+ }
+
+ dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL);
+ if (dev->ctrl_buf == NULL) {
+ retval = -ENOMEM;
+ goto err_alloc_ctrl_buf;
+ }
+
+ retval = ipheth_get_macaddr(dev);
+ if (retval)
+ goto err_get_macaddr;
+
+ INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work);
+
+ retval = ipheth_alloc_urbs(dev);
+ if (retval) {
+ dev_err(&intf->dev, "error allocating urbs: %d\n", retval);
+ goto err_alloc_urbs;
+ }
+
+ usb_set_intfdata(intf, dev);
+
+ SET_NETDEV_DEV(netdev, &intf->dev);
+ netdev->ethtool_ops = &ops;
+
+ retval = register_netdev(netdev);
+ if (retval) {
+ dev_err(&intf->dev, "error registering netdev: %d\n", retval);
+ retval = -EIO;
+ goto err_register_netdev;
+ }
+
+ dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
+ return 0;
+
+err_register_netdev:
+ ipheth_free_urbs(dev);
+err_alloc_urbs:
+err_get_macaddr:
+err_alloc_ctrl_buf:
+ kfree(dev->ctrl_buf);
+err_endpoints:
+ free_netdev(netdev);
+ return retval;
+}
+
+static void ipheth_disconnect(struct usb_interface *intf)
+{
+ struct ipheth_device *dev;
+
+ dev = usb_get_intfdata(intf);
+ if (dev != NULL) {
+ unregister_netdev(dev->net);
+ ipheth_kill_urbs(dev);
+ ipheth_free_urbs(dev);
+ kfree(dev->ctrl_buf);
+ free_netdev(dev->net);
+ }
+ usb_set_intfdata(intf, NULL);
+ dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n");
+}
+
+static struct usb_driver ipheth_driver = {
+ .name = "ipheth",
+ .probe = ipheth_probe,
+ .disconnect = ipheth_disconnect,
+ .id_table = ipheth_table,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(ipheth_driver);
+
+MODULE_AUTHOR("Diego Giagio <diego@giagio.com>");
+MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c
new file mode 100644
index 0000000..5662bab
--- /dev/null
+++ b/drivers/net/usb/kalmia.c
@@ -0,0 +1,366 @@
+/*
+ * USB network interface driver for Samsung Kalmia based LTE USB modem like the
+ * Samsung GT-B3730 and GT-B3710.
+ *
+ * Copyright (C) 2011 Marius Bjoernstad Kotsbak <marius@kotsbak.com>
+ *
+ * Sponsored by Quicklink Video Distribution Services Ltd.
+ *
+ * Based on the cdc_eem module.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ctype.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/gfp.h>
+
+/*
+ * The Samsung Kalmia based LTE USB modems have a CDC ACM port for modem control
+ * handled by the "option" module and an ethernet data port handled by this
+ * module.
+ *
+ * The stick must first be switched into modem mode by usb_modeswitch
+ * or similar tool. Then the modem gets sent two initialization packets by
+ * this module, which gives the MAC address of the device. User space can then
+ * connect the modem using AT commands through the ACM port and then use
+ * DHCP on the network interface exposed by this module. Network packets are
+ * sent to and from the modem in a proprietary format discovered after watching
+ * the behavior of the windows driver for the modem.
+ *
+ * More information about the use of the modem is available in usb_modeswitch
+ * forum and the project page:
+ *
+ * http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?t=465
+ * https://github.com/mkotsbak/Samsung-GT-B3730-linux-driver
+ */
+
+/* #define DEBUG */
+/* #define VERBOSE */
+
+#define KALMIA_HEADER_LENGTH 6
+#define KALMIA_ALIGN_SIZE 4
+#define KALMIA_USB_TIMEOUT 10000
+
+/*-------------------------------------------------------------------------*/
+
+static int
+kalmia_send_init_packet(struct usbnet *dev, u8 *init_msg, u8 init_msg_len,
+ u8 *buffer, u8 expected_len)
+{
+ int act_len;
+ int status;
+
+ netdev_dbg(dev->net, "Sending init packet");
+
+ status = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 0x02),
+ init_msg, init_msg_len, &act_len, KALMIA_USB_TIMEOUT);
+ if (status != 0) {
+ netdev_err(dev->net,
+ "Error sending init packet. Status %i, length %i\n",
+ status, act_len);
+ return status;
+ }
+ else if (act_len != init_msg_len) {
+ netdev_err(dev->net,
+ "Did not send all of init packet. Bytes sent: %i",
+ act_len);
+ }
+ else {
+ netdev_dbg(dev->net, "Successfully sent init packet.");
+ }
+
+ status = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, 0x81),
+ buffer, expected_len, &act_len, KALMIA_USB_TIMEOUT);
+
+ if (status != 0)
+ netdev_err(dev->net,
+ "Error receiving init result. Status %i, length %i\n",
+ status, act_len);
+ else if (act_len != expected_len)
+ netdev_err(dev->net, "Unexpected init result length: %i\n",
+ act_len);
+
+ return status;
+}
+
+static int
+kalmia_init_and_get_ethernet_addr(struct usbnet *dev, u8 *ethernet_addr)
+{
+ static const char init_msg_1[] =
+ { 0x57, 0x50, 0x04, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
+ 0x00, 0x00 };
+ static const char init_msg_2[] =
+ { 0x57, 0x50, 0x04, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0xf4,
+ 0x00, 0x00 };
+ static const int buflen = 28;
+ char *usb_buf;
+ int status;
+
+ usb_buf = kmalloc(buflen, GFP_DMA | GFP_KERNEL);
+ if (!usb_buf)
+ return -ENOMEM;
+
+ memcpy(usb_buf, init_msg_1, 12);
+ status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_1)
+ / sizeof(init_msg_1[0]), usb_buf, 24);
+ if (status != 0)
+ return status;
+
+ memcpy(usb_buf, init_msg_2, 12);
+ status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_2)
+ / sizeof(init_msg_2[0]), usb_buf, 28);
+ if (status != 0)
+ return status;
+
+ memcpy(ethernet_addr, usb_buf + 10, ETH_ALEN);
+
+ kfree(usb_buf);
+ return status;
+}
+
+static int
+kalmia_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status;
+ u8 ethernet_addr[ETH_ALEN];
+
+ /* Don't bind to AT command interface */
+ if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
+ return -EINVAL;
+
+ dev->in = usb_rcvbulkpipe(dev->udev, 0x81 & USB_ENDPOINT_NUMBER_MASK);
+ dev->out = usb_sndbulkpipe(dev->udev, 0x02 & USB_ENDPOINT_NUMBER_MASK);
+ dev->status = NULL;
+
+ dev->net->hard_header_len += KALMIA_HEADER_LENGTH;
+ dev->hard_mtu = 1400;
+ dev->rx_urb_size = dev->hard_mtu * 10; // Found as optimal after testing
+
+ status = kalmia_init_and_get_ethernet_addr(dev, ethernet_addr);
+
+ if (status < 0) {
+ usb_set_intfdata(intf, NULL);
+ usb_driver_release_interface(driver_of(intf), intf);
+ return status;
+ }
+
+ memcpy(dev->net->dev_addr, ethernet_addr, ETH_ALEN);
+
+ return status;
+}
+
+static struct sk_buff *
+kalmia_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ struct sk_buff *skb2 = NULL;
+ u16 content_len;
+ unsigned char *header_start;
+ unsigned char ether_type_1, ether_type_2;
+ u8 remainder, padlen = 0;
+
+ if (!skb_cloned(skb)) {
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+
+ if ((tailroom >= KALMIA_ALIGN_SIZE) && (headroom
+ >= KALMIA_HEADER_LENGTH))
+ goto done;
+
+ if ((headroom + tailroom) > (KALMIA_HEADER_LENGTH
+ + KALMIA_ALIGN_SIZE)) {
+ skb->data = memmove(skb->head + KALMIA_HEADER_LENGTH,
+ skb->data, skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ goto done;
+ }
+ }
+
+ skb2 = skb_copy_expand(skb, KALMIA_HEADER_LENGTH,
+ KALMIA_ALIGN_SIZE, flags);
+ if (!skb2)
+ return NULL;
+
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+
+done:
+ header_start = skb_push(skb, KALMIA_HEADER_LENGTH);
+ ether_type_1 = header_start[KALMIA_HEADER_LENGTH + 12];
+ ether_type_2 = header_start[KALMIA_HEADER_LENGTH + 13];
+
+ netdev_dbg(dev->net, "Sending etherType: %02x%02x", ether_type_1,
+ ether_type_2);
+
+ /* According to empiric data for data packages */
+ header_start[0] = 0x57;
+ header_start[1] = 0x44;
+ content_len = skb->len - KALMIA_HEADER_LENGTH;
+
+ put_unaligned_le16(content_len, &header_start[2]);
+ header_start[4] = ether_type_1;
+ header_start[5] = ether_type_2;
+
+ /* Align to 4 bytes by padding with zeros */
+ remainder = skb->len % KALMIA_ALIGN_SIZE;
+ if (remainder > 0) {
+ padlen = KALMIA_ALIGN_SIZE - remainder;
+ memset(skb_put(skb, padlen), 0, padlen);
+ }
+
+ netdev_dbg(dev->net,
+ "Sending package with length %i and padding %i. Header: %6phC.",
+ content_len, padlen, header_start);
+
+ return skb;
+}
+
+static int
+kalmia_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ /*
+ * Our task here is to strip off framing, leaving skb with one
+ * data frame for the usbnet framework code to process.
+ */
+ static const u8 HEADER_END_OF_USB_PACKET[] =
+ { 0x57, 0x5a, 0x00, 0x00, 0x08, 0x00 };
+ static const u8 EXPECTED_UNKNOWN_HEADER_1[] =
+ { 0x57, 0x43, 0x1e, 0x00, 0x15, 0x02 };
+ static const u8 EXPECTED_UNKNOWN_HEADER_2[] =
+ { 0x57, 0x50, 0x0e, 0x00, 0x00, 0x00 };
+ int i = 0;
+
+ /* incomplete header? */
+ if (skb->len < KALMIA_HEADER_LENGTH)
+ return 0;
+
+ do {
+ struct sk_buff *skb2 = NULL;
+ u8 *header_start;
+ u16 usb_packet_length, ether_packet_length;
+ int is_last;
+
+ header_start = skb->data;
+
+ if (unlikely(header_start[0] != 0x57 || header_start[1] != 0x44)) {
+ if (!memcmp(header_start, EXPECTED_UNKNOWN_HEADER_1,
+ sizeof(EXPECTED_UNKNOWN_HEADER_1)) || !memcmp(
+ header_start, EXPECTED_UNKNOWN_HEADER_2,
+ sizeof(EXPECTED_UNKNOWN_HEADER_2))) {
+ netdev_dbg(dev->net,
+ "Received expected unknown frame header: %6phC. Package length: %i\n",
+ header_start,
+ skb->len - KALMIA_HEADER_LENGTH);
+ }
+ else {
+ netdev_err(dev->net,
+ "Received unknown frame header: %6phC. Package length: %i\n",
+ header_start,
+ skb->len - KALMIA_HEADER_LENGTH);
+ return 0;
+ }
+ }
+ else
+ netdev_dbg(dev->net,
+ "Received header: %6phC. Package length: %i\n",
+ header_start, skb->len - KALMIA_HEADER_LENGTH);
+
+ /* subtract start header and end header */
+ usb_packet_length = skb->len - (2 * KALMIA_HEADER_LENGTH);
+ ether_packet_length = get_unaligned_le16(&header_start[2]);
+ skb_pull(skb, KALMIA_HEADER_LENGTH);
+
+ /* Some small packets misses end marker */
+ if (usb_packet_length < ether_packet_length) {
+ ether_packet_length = usb_packet_length
+ + KALMIA_HEADER_LENGTH;
+ is_last = true;
+ }
+ else {
+ netdev_dbg(dev->net, "Correct package length #%i", i
+ + 1);
+
+ is_last = (memcmp(skb->data + ether_packet_length,
+ HEADER_END_OF_USB_PACKET,
+ sizeof(HEADER_END_OF_USB_PACKET)) == 0);
+ if (!is_last) {
+ header_start = skb->data + ether_packet_length;
+ netdev_dbg(dev->net,
+ "End header: %6phC. Package length: %i\n",
+ header_start,
+ skb->len - KALMIA_HEADER_LENGTH);
+ }
+ }
+
+ if (is_last) {
+ skb2 = skb;
+ }
+ else {
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!skb2))
+ return 0;
+ }
+
+ skb_trim(skb2, ether_packet_length);
+
+ if (is_last) {
+ return 1;
+ }
+ else {
+ usbnet_skb_return(dev, skb2);
+ skb_pull(skb, ether_packet_length);
+ }
+
+ i++;
+ }
+ while (skb->len);
+
+ return 1;
+}
+
+static const struct driver_info kalmia_info = {
+ .description = "Samsung Kalmia LTE USB dongle",
+ .flags = FLAG_WWAN,
+ .bind = kalmia_bind,
+ .rx_fixup = kalmia_rx_fixup,
+ .tx_fixup = kalmia_tx_fixup
+};
+
+/*-------------------------------------------------------------------------*/
+
+static const struct usb_device_id products[] = {
+ /* The unswitched USB ID, to get the module auto loaded: */
+ { USB_DEVICE(0x04e8, 0x689a) },
+ /* The stick swithed into modem (by e.g. usb_modeswitch): */
+ { USB_DEVICE(0x04e8, 0x6889),
+ .driver_info = (unsigned long) &kalmia_info, },
+ { /* EMPTY == end of list */} };
+MODULE_DEVICE_TABLE( usb, products);
+
+static struct usb_driver kalmia_driver = {
+ .name = "kalmia",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(kalmia_driver);
+
+MODULE_AUTHOR("Marius Bjoernstad Kotsbak <marius@kotsbak.com>");
+MODULE_DESCRIPTION("Samsung Kalmia USB network driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
new file mode 100644
index 0000000..cd93220
--- /dev/null
+++ b/drivers/net/usb/kaweth.c
@@ -0,0 +1,1329 @@
+/****************************************************************
+ *
+ * kaweth.c - driver for KL5KUSB101 based USB->Ethernet
+ *
+ * (c) 2000 Interlan Communications
+ * (c) 2000 Stephane Alnet
+ * (C) 2001 Brad Hards
+ * (C) 2002 Oliver Neukum
+ *
+ * Original author: The Zapman <zapman@interlan.net>
+ * Inspired by, and much credit goes to Michael Rothwell
+ * <rothwell@interlan.net> for the test equipment, help, and patience
+ * Based off of (and with thanks to) Petko Manolov's pegaus.c driver.
+ * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki
+ * for providing the firmware and driver resources.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ ****************************************************************/
+
+/* TODO:
+ * Develop test procedures for USB net interfaces
+ * Run test procedures
+ * Fix bugs from previous two steps
+ * Snoop other OSs for any tricks we're not doing
+ * Reduce arbitrary timeouts
+ * Smart multicast support
+ * Temporary MAC change support
+ * Tunable SOFs parameter - ioctl()?
+ * Ethernet stats collection
+ * Code formatting improvements
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/usb.h>
+#include <linux/types.h>
+#include <linux/ethtool.h>
+#include <linux/dma-mapping.h>
+#include <linux/wait.h>
+#include <linux/firmware.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+#undef DEBUG
+
+#define KAWETH_MTU 1514
+#define KAWETH_BUF_SIZE 1664
+#define KAWETH_TX_TIMEOUT (5 * HZ)
+#define KAWETH_SCRATCH_SIZE 32
+#define KAWETH_FIRMWARE_BUF_SIZE 4096
+#define KAWETH_CONTROL_TIMEOUT (30000)
+
+#define KAWETH_STATUS_BROKEN 0x0000001
+#define KAWETH_STATUS_CLOSING 0x0000002
+#define KAWETH_STATUS_SUSPENDING 0x0000004
+
+#define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING)
+
+#define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01
+#define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02
+#define KAWETH_PACKET_FILTER_DIRECTED 0x04
+#define KAWETH_PACKET_FILTER_BROADCAST 0x08
+#define KAWETH_PACKET_FILTER_MULTICAST 0x10
+
+/* Table 7 */
+#define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00
+#define KAWETH_COMMAND_MULTICAST_FILTERS 0x01
+#define KAWETH_COMMAND_SET_PACKET_FILTER 0x02
+#define KAWETH_COMMAND_STATISTICS 0x03
+#define KAWETH_COMMAND_SET_TEMP_MAC 0x06
+#define KAWETH_COMMAND_GET_TEMP_MAC 0x07
+#define KAWETH_COMMAND_SET_URB_SIZE 0x08
+#define KAWETH_COMMAND_SET_SOFS_WAIT 0x09
+#define KAWETH_COMMAND_SCAN 0xFF
+
+#define KAWETH_SOFS_TO_WAIT 0x05
+
+#define INTBUFFERSIZE 4
+
+#define STATE_OFFSET 0
+#define STATE_MASK 0x40
+#define STATE_SHIFT 5
+
+#define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED)
+
+
+MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>");
+MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE("kaweth/new_code.bin");
+MODULE_FIRMWARE("kaweth/new_code_fix.bin");
+MODULE_FIRMWARE("kaweth/trigger_code.bin");
+MODULE_FIRMWARE("kaweth/trigger_code_fix.bin");
+
+static const char driver_name[] = "kaweth";
+
+static int kaweth_probe(
+ struct usb_interface *intf,
+ const struct usb_device_id *id /* from id_table */
+ );
+static void kaweth_disconnect(struct usb_interface *intf);
+static int kaweth_internal_control_msg(struct usb_device *usb_dev,
+ unsigned int pipe,
+ struct usb_ctrlrequest *cmd, void *data,
+ int len, int timeout);
+static int kaweth_suspend(struct usb_interface *intf, pm_message_t message);
+static int kaweth_resume(struct usb_interface *intf);
+
+/****************************************************************
+ * usb_device_id
+ ****************************************************************/
+static struct usb_device_id usb_klsi_table[] = {
+ { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */
+ { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */
+ { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */
+ { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */
+ { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */
+ { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */
+ { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */
+ { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */
+ { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */
+ { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */
+ { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */
+ { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */
+ { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */
+ { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */
+ { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */
+ { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */
+ { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */
+ { USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */
+ { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */
+ { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */
+ { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */
+ { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */
+ { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */
+ { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */
+ { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */
+ { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */
+ { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */
+ { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */
+ { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */
+ { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */
+ { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */
+ { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */
+ { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */
+ { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */
+ { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */
+ {} /* Null terminator */
+};
+
+MODULE_DEVICE_TABLE (usb, usb_klsi_table);
+
+/****************************************************************
+ * kaweth_driver
+ ****************************************************************/
+static struct usb_driver kaweth_driver = {
+ .name = driver_name,
+ .probe = kaweth_probe,
+ .disconnect = kaweth_disconnect,
+ .suspend = kaweth_suspend,
+ .resume = kaweth_resume,
+ .id_table = usb_klsi_table,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+typedef __u8 eth_addr_t[6];
+
+/****************************************************************
+ * usb_eth_dev
+ ****************************************************************/
+struct usb_eth_dev {
+ char *name;
+ __u16 vendor;
+ __u16 device;
+ void *pdata;
+};
+
+/****************************************************************
+ * kaweth_ethernet_configuration
+ * Refer Table 8
+ ****************************************************************/
+struct kaweth_ethernet_configuration
+{
+ __u8 size;
+ __u8 reserved1;
+ __u8 reserved2;
+ eth_addr_t hw_addr;
+ __u32 statistics_mask;
+ __le16 segment_size;
+ __u16 max_multicast_filters;
+ __u8 reserved3;
+} __packed;
+
+/****************************************************************
+ * kaweth_device
+ ****************************************************************/
+struct kaweth_device
+{
+ spinlock_t device_lock;
+
+ __u32 status;
+ int end;
+ int suspend_lowmem_rx;
+ int suspend_lowmem_ctrl;
+ int linkstate;
+ int opened;
+ struct delayed_work lowmem_work;
+
+ struct usb_device *dev;
+ struct usb_interface *intf;
+ struct net_device *net;
+ wait_queue_head_t term_wait;
+
+ struct urb *rx_urb;
+ struct urb *tx_urb;
+ struct urb *irq_urb;
+
+ dma_addr_t intbufferhandle;
+ __u8 *intbuffer;
+ dma_addr_t rxbufferhandle;
+ __u8 *rx_buf;
+
+
+ struct sk_buff *tx_skb;
+
+ __u8 *firmware_buf;
+ __u8 scratch[KAWETH_SCRATCH_SIZE];
+ __u16 packet_filter_bitmap;
+
+ struct kaweth_ethernet_configuration configuration;
+
+ struct net_device_stats stats;
+};
+
+/****************************************************************
+ * kaweth_control
+ ****************************************************************/
+static int kaweth_control(struct kaweth_device *kaweth,
+ unsigned int pipe,
+ __u8 request,
+ __u8 requesttype,
+ __u16 value,
+ __u16 index,
+ void *data,
+ __u16 size,
+ int timeout)
+{
+ struct usb_ctrlrequest *dr;
+ int retval;
+
+ netdev_dbg(kaweth->net, "kaweth_control()\n");
+
+ if(in_interrupt()) {
+ netdev_dbg(kaweth->net, "in_interrupt()\n");
+ return -EBUSY;
+ }
+
+ dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
+ if (!dr)
+ return -ENOMEM;
+
+ dr->bRequestType = requesttype;
+ dr->bRequest = request;
+ dr->wValue = cpu_to_le16(value);
+ dr->wIndex = cpu_to_le16(index);
+ dr->wLength = cpu_to_le16(size);
+
+ retval = kaweth_internal_control_msg(kaweth->dev,
+ pipe,
+ dr,
+ data,
+ size,
+ timeout);
+
+ kfree(dr);
+ return retval;
+}
+
+/****************************************************************
+ * kaweth_read_configuration
+ ****************************************************************/
+static int kaweth_read_configuration(struct kaweth_device *kaweth)
+{
+ int retval;
+
+ netdev_dbg(kaweth->net, "Reading kaweth configuration\n");
+
+ retval = kaweth_control(kaweth,
+ usb_rcvctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_GET_ETHERNET_DESC,
+ USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ (void *)&kaweth->configuration,
+ sizeof(kaweth->configuration),
+ KAWETH_CONTROL_TIMEOUT);
+
+ return retval;
+}
+
+/****************************************************************
+ * kaweth_set_urb_size
+ ****************************************************************/
+static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size)
+{
+ int retval;
+
+ netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size);
+
+ retval = kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SET_URB_SIZE,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ urb_size,
+ 0,
+ (void *)&kaweth->scratch,
+ 0,
+ KAWETH_CONTROL_TIMEOUT);
+
+ return retval;
+}
+
+/****************************************************************
+ * kaweth_set_sofs_wait
+ ****************************************************************/
+static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait)
+{
+ int retval;
+
+ netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait);
+
+ retval = kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SET_SOFS_WAIT,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ sofs_wait,
+ 0,
+ (void *)&kaweth->scratch,
+ 0,
+ KAWETH_CONTROL_TIMEOUT);
+
+ return retval;
+}
+
+/****************************************************************
+ * kaweth_set_receive_filter
+ ****************************************************************/
+static int kaweth_set_receive_filter(struct kaweth_device *kaweth,
+ __u16 receive_filter)
+{
+ int retval;
+
+ netdev_dbg(kaweth->net, "Set receive filter to %d\n",
+ (unsigned)receive_filter);
+
+ retval = kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SET_PACKET_FILTER,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ receive_filter,
+ 0,
+ (void *)&kaweth->scratch,
+ 0,
+ KAWETH_CONTROL_TIMEOUT);
+
+ return retval;
+}
+
+/****************************************************************
+ * kaweth_download_firmware
+ ****************************************************************/
+static int kaweth_download_firmware(struct kaweth_device *kaweth,
+ const char *fwname,
+ __u8 interrupt,
+ __u8 type)
+{
+ const struct firmware *fw;
+ int data_len;
+ int ret;
+
+ ret = request_firmware(&fw, fwname, &kaweth->dev->dev);
+ if (ret) {
+ dev_err(&kaweth->intf->dev, "Firmware request failed\n");
+ return ret;
+ }
+
+ if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) {
+ dev_err(&kaweth->intf->dev, "Firmware too big: %zu\n",
+ fw->size);
+ release_firmware(fw);
+ return -ENOSPC;
+ }
+ data_len = fw->size;
+ memcpy(kaweth->firmware_buf, fw->data, fw->size);
+
+ release_firmware(fw);
+
+ kaweth->firmware_buf[2] = (data_len & 0xFF) - 7;
+ kaweth->firmware_buf[3] = data_len >> 8;
+ kaweth->firmware_buf[4] = type;
+ kaweth->firmware_buf[5] = interrupt;
+
+ netdev_dbg(kaweth->net, "High: %i, Low:%i\n", kaweth->firmware_buf[3],
+ kaweth->firmware_buf[2]);
+
+ netdev_dbg(kaweth->net,
+ "Downloading firmware at %p to kaweth device at %p\n",
+ kaweth->firmware_buf, kaweth);
+ netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len);
+
+ return kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SCAN,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ (void *)kaweth->firmware_buf,
+ data_len,
+ KAWETH_CONTROL_TIMEOUT);
+}
+
+/****************************************************************
+ * kaweth_trigger_firmware
+ ****************************************************************/
+static int kaweth_trigger_firmware(struct kaweth_device *kaweth,
+ __u8 interrupt)
+{
+ kaweth->firmware_buf[0] = 0xB6;
+ kaweth->firmware_buf[1] = 0xC3;
+ kaweth->firmware_buf[2] = 0x01;
+ kaweth->firmware_buf[3] = 0x00;
+ kaweth->firmware_buf[4] = 0x06;
+ kaweth->firmware_buf[5] = interrupt;
+ kaweth->firmware_buf[6] = 0x00;
+ kaweth->firmware_buf[7] = 0x00;
+
+ netdev_dbg(kaweth->net, "Triggering firmware\n");
+
+ return kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SCAN,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ (void *)kaweth->firmware_buf,
+ 8,
+ KAWETH_CONTROL_TIMEOUT);
+}
+
+/****************************************************************
+ * kaweth_reset
+ ****************************************************************/
+static int kaweth_reset(struct kaweth_device *kaweth)
+{
+ int result;
+
+ netdev_dbg(kaweth->net, "kaweth_reset(%p)\n", kaweth);
+ result = usb_reset_configuration(kaweth->dev);
+ mdelay(10);
+
+ netdev_dbg(kaweth->net, "kaweth_reset() returns %d.\n", result);
+
+ return result;
+}
+
+static void kaweth_usb_receive(struct urb *);
+static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t);
+
+/****************************************************************
+ int_callback
+*****************************************************************/
+
+static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf)
+{
+ int status;
+
+ status = usb_submit_urb (kaweth->irq_urb, mf);
+ if (unlikely(status == -ENOMEM)) {
+ kaweth->suspend_lowmem_ctrl = 1;
+ schedule_delayed_work(&kaweth->lowmem_work, HZ/4);
+ } else {
+ kaweth->suspend_lowmem_ctrl = 0;
+ }
+
+ if (status)
+ dev_err(&kaweth->intf->dev,
+ "can't resubmit intr, %s-%s, status %d\n",
+ kaweth->dev->bus->bus_name,
+ kaweth->dev->devpath, status);
+}
+
+static void int_callback(struct urb *u)
+{
+ struct kaweth_device *kaweth = u->context;
+ int act_state;
+ int status = u->status;
+
+ switch (status) {
+ case 0: /* success */
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ /* -EPIPE: should clear the halt */
+ default: /* error */
+ goto resubmit;
+ }
+
+ /* we check the link state to report changes */
+ if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) {
+ if (act_state)
+ netif_carrier_on(kaweth->net);
+ else
+ netif_carrier_off(kaweth->net);
+
+ kaweth->linkstate = act_state;
+ }
+resubmit:
+ kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC);
+}
+
+static void kaweth_resubmit_tl(struct work_struct *work)
+{
+ struct kaweth_device *kaweth =
+ container_of(work, struct kaweth_device, lowmem_work.work);
+
+ if (IS_BLOCKED(kaweth->status))
+ return;
+
+ if (kaweth->suspend_lowmem_rx)
+ kaweth_resubmit_rx_urb(kaweth, GFP_NOIO);
+
+ if (kaweth->suspend_lowmem_ctrl)
+ kaweth_resubmit_int_urb(kaweth, GFP_NOIO);
+}
+
+
+/****************************************************************
+ * kaweth_resubmit_rx_urb
+ ****************************************************************/
+static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth,
+ gfp_t mem_flags)
+{
+ int result;
+
+ usb_fill_bulk_urb(kaweth->rx_urb,
+ kaweth->dev,
+ usb_rcvbulkpipe(kaweth->dev, 1),
+ kaweth->rx_buf,
+ KAWETH_BUF_SIZE,
+ kaweth_usb_receive,
+ kaweth);
+ kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle;
+
+ if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) {
+ if (result == -ENOMEM) {
+ kaweth->suspend_lowmem_rx = 1;
+ schedule_delayed_work(&kaweth->lowmem_work, HZ/4);
+ }
+ dev_err(&kaweth->intf->dev, "resubmitting rx_urb %d failed\n",
+ result);
+ } else {
+ kaweth->suspend_lowmem_rx = 0;
+ }
+
+ return result;
+}
+
+static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth);
+
+/****************************************************************
+ * kaweth_usb_receive
+ ****************************************************************/
+static void kaweth_usb_receive(struct urb *urb)
+{
+ struct device *dev = &urb->dev->dev;
+ struct kaweth_device *kaweth = urb->context;
+ struct net_device *net = kaweth->net;
+ int status = urb->status;
+
+ int count = urb->actual_length;
+ int count2 = urb->transfer_buffer_length;
+
+ __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf);
+
+ struct sk_buff *skb;
+
+ if (unlikely(status == -EPIPE)) {
+ kaweth->stats.rx_errors++;
+ kaweth->end = 1;
+ wake_up(&kaweth->term_wait);
+ dev_dbg(dev, "Status was -EPIPE.\n");
+ return;
+ }
+ if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) {
+ /* we are killed - set a flag and wake the disconnect handler */
+ kaweth->end = 1;
+ wake_up(&kaweth->term_wait);
+ dev_dbg(dev, "Status was -ECONNRESET or -ESHUTDOWN.\n");
+ return;
+ }
+ if (unlikely(status == -EPROTO || status == -ETIME ||
+ status == -EILSEQ)) {
+ kaweth->stats.rx_errors++;
+ dev_dbg(dev, "Status was -EPROTO, -ETIME, or -EILSEQ.\n");
+ return;
+ }
+ if (unlikely(status == -EOVERFLOW)) {
+ kaweth->stats.rx_errors++;
+ dev_dbg(dev, "Status was -EOVERFLOW.\n");
+ }
+ spin_lock(&kaweth->device_lock);
+ if (IS_BLOCKED(kaweth->status)) {
+ spin_unlock(&kaweth->device_lock);
+ return;
+ }
+ spin_unlock(&kaweth->device_lock);
+
+ if(status && status != -EREMOTEIO && count != 1) {
+ dev_err(&kaweth->intf->dev,
+ "%s RX status: %d count: %d packet_len: %d\n",
+ net->name, status, count, (int)pkt_len);
+ kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC);
+ return;
+ }
+
+ if(kaweth->net && (count > 2)) {
+ if(pkt_len > (count - 2)) {
+ dev_err(&kaweth->intf->dev,
+ "Packet length too long for USB frame (pkt_len: %x, count: %x)\n",
+ pkt_len, count);
+ dev_err(&kaweth->intf->dev, "Packet len & 2047: %x\n",
+ pkt_len & 2047);
+ dev_err(&kaweth->intf->dev, "Count 2: %x\n", count2);
+ kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC);
+ return;
+ }
+
+ if(!(skb = dev_alloc_skb(pkt_len+2))) {
+ kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC);
+ return;
+ }
+
+ skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
+
+ skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len);
+
+ skb_put(skb, pkt_len);
+
+ skb->protocol = eth_type_trans(skb, net);
+
+ netif_rx(skb);
+
+ kaweth->stats.rx_packets++;
+ kaweth->stats.rx_bytes += pkt_len;
+ }
+
+ kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC);
+}
+
+/****************************************************************
+ * kaweth_open
+ ****************************************************************/
+static int kaweth_open(struct net_device *net)
+{
+ struct kaweth_device *kaweth = netdev_priv(net);
+ int res;
+
+ netdev_dbg(kaweth->net, "Opening network device.\n");
+
+ res = usb_autopm_get_interface(kaweth->intf);
+ if (res) {
+ dev_err(&kaweth->intf->dev, "Interface cannot be resumed.\n");
+ return -EIO;
+ }
+ res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL);
+ if (res)
+ goto err_out;
+
+ usb_fill_int_urb(
+ kaweth->irq_urb,
+ kaweth->dev,
+ usb_rcvintpipe(kaweth->dev, 3),
+ kaweth->intbuffer,
+ INTBUFFERSIZE,
+ int_callback,
+ kaweth,
+ 250); /* overriding the descriptor */
+ kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle;
+ kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL);
+ if (res) {
+ usb_kill_urb(kaweth->rx_urb);
+ goto err_out;
+ }
+ kaweth->opened = 1;
+
+ netif_start_queue(net);
+
+ kaweth_async_set_rx_mode(kaweth);
+ return 0;
+
+err_out:
+ usb_autopm_put_interface(kaweth->intf);
+ return -EIO;
+}
+
+/****************************************************************
+ * kaweth_kill_urbs
+ ****************************************************************/
+static void kaweth_kill_urbs(struct kaweth_device *kaweth)
+{
+ usb_kill_urb(kaweth->irq_urb);
+ usb_kill_urb(kaweth->rx_urb);
+ usb_kill_urb(kaweth->tx_urb);
+
+ cancel_delayed_work_sync(&kaweth->lowmem_work);
+
+ /* a scheduled work may have resubmitted,
+ we hit them again */
+ usb_kill_urb(kaweth->irq_urb);
+ usb_kill_urb(kaweth->rx_urb);
+}
+
+/****************************************************************
+ * kaweth_close
+ ****************************************************************/
+static int kaweth_close(struct net_device *net)
+{
+ struct kaweth_device *kaweth = netdev_priv(net);
+
+ netif_stop_queue(net);
+ kaweth->opened = 0;
+
+ kaweth->status |= KAWETH_STATUS_CLOSING;
+
+ kaweth_kill_urbs(kaweth);
+
+ kaweth->status &= ~KAWETH_STATUS_CLOSING;
+
+ usb_autopm_put_interface(kaweth->intf);
+
+ return 0;
+}
+
+static u32 kaweth_get_link(struct net_device *dev)
+{
+ struct kaweth_device *kaweth = netdev_priv(dev);
+
+ return kaweth->linkstate;
+}
+
+static const struct ethtool_ops ops = {
+ .get_link = kaweth_get_link
+};
+
+/****************************************************************
+ * kaweth_usb_transmit_complete
+ ****************************************************************/
+static void kaweth_usb_transmit_complete(struct urb *urb)
+{
+ struct kaweth_device *kaweth = urb->context;
+ struct sk_buff *skb = kaweth->tx_skb;
+ int status = urb->status;
+
+ if (unlikely(status != 0))
+ if (status != -ENOENT)
+ dev_dbg(&urb->dev->dev, "%s: TX status %d.\n",
+ kaweth->net->name, status);
+
+ netif_wake_queue(kaweth->net);
+ dev_kfree_skb_irq(skb);
+}
+
+/****************************************************************
+ * kaweth_start_xmit
+ ****************************************************************/
+static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
+{
+ struct kaweth_device *kaweth = netdev_priv(net);
+ __le16 *private_header;
+
+ int res;
+
+ spin_lock_irq(&kaweth->device_lock);
+
+ kaweth_async_set_rx_mode(kaweth);
+ netif_stop_queue(net);
+ if (IS_BLOCKED(kaweth->status)) {
+ goto skip;
+ }
+
+ /* We now decide whether we can put our special header into the sk_buff */
+ if (skb_cloned(skb) || skb_headroom(skb) < 2) {
+ /* no such luck - we make our own */
+ struct sk_buff *copied_skb;
+ copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC);
+ dev_kfree_skb_irq(skb);
+ skb = copied_skb;
+ if (!copied_skb) {
+ kaweth->stats.tx_errors++;
+ netif_start_queue(net);
+ spin_unlock_irq(&kaweth->device_lock);
+ return NETDEV_TX_OK;
+ }
+ }
+
+ private_header = (__le16 *)__skb_push(skb, 2);
+ *private_header = cpu_to_le16(skb->len-2);
+ kaweth->tx_skb = skb;
+
+ usb_fill_bulk_urb(kaweth->tx_urb,
+ kaweth->dev,
+ usb_sndbulkpipe(kaweth->dev, 2),
+ private_header,
+ skb->len,
+ kaweth_usb_transmit_complete,
+ kaweth);
+ kaweth->end = 0;
+
+ if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC)))
+ {
+ dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res);
+skip:
+ kaweth->stats.tx_errors++;
+
+ netif_start_queue(net);
+ dev_kfree_skb_irq(skb);
+ }
+ else
+ {
+ kaweth->stats.tx_packets++;
+ kaweth->stats.tx_bytes += skb->len;
+ }
+
+ spin_unlock_irq(&kaweth->device_lock);
+
+ return NETDEV_TX_OK;
+}
+
+/****************************************************************
+ * kaweth_set_rx_mode
+ ****************************************************************/
+static void kaweth_set_rx_mode(struct net_device *net)
+{
+ struct kaweth_device *kaweth = netdev_priv(net);
+
+ __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED |
+ KAWETH_PACKET_FILTER_BROADCAST |
+ KAWETH_PACKET_FILTER_MULTICAST;
+
+ netdev_dbg(net, "Setting Rx mode to %d\n", packet_filter_bitmap);
+
+ netif_stop_queue(net);
+
+ if (net->flags & IFF_PROMISC) {
+ packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS;
+ }
+ else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
+ packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST;
+ }
+
+ kaweth->packet_filter_bitmap = packet_filter_bitmap;
+ netif_wake_queue(net);
+}
+
+/****************************************************************
+ * kaweth_async_set_rx_mode
+ ****************************************************************/
+static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth)
+{
+ int result;
+ __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap;
+
+ kaweth->packet_filter_bitmap = 0;
+ if (packet_filter_bitmap == 0)
+ return;
+
+ if (in_interrupt())
+ return;
+
+ result = kaweth_control(kaweth,
+ usb_sndctrlpipe(kaweth->dev, 0),
+ KAWETH_COMMAND_SET_PACKET_FILTER,
+ USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+ packet_filter_bitmap,
+ 0,
+ (void *)&kaweth->scratch,
+ 0,
+ KAWETH_CONTROL_TIMEOUT);
+
+ if(result < 0) {
+ dev_err(&kaweth->intf->dev, "Failed to set Rx mode: %d\n",
+ result);
+ }
+ else {
+ netdev_dbg(kaweth->net, "Set Rx mode to %d\n",
+ packet_filter_bitmap);
+ }
+}
+
+/****************************************************************
+ * kaweth_netdev_stats
+ ****************************************************************/
+static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev)
+{
+ struct kaweth_device *kaweth = netdev_priv(dev);
+ return &kaweth->stats;
+}
+
+/****************************************************************
+ * kaweth_tx_timeout
+ ****************************************************************/
+static void kaweth_tx_timeout(struct net_device *net)
+{
+ struct kaweth_device *kaweth = netdev_priv(net);
+
+ dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name);
+ kaweth->stats.tx_errors++;
+ net->trans_start = jiffies;
+
+ usb_unlink_urb(kaweth->tx_urb);
+}
+
+/****************************************************************
+ * kaweth_suspend
+ ****************************************************************/
+static int kaweth_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct kaweth_device *kaweth = usb_get_intfdata(intf);
+ unsigned long flags;
+
+ dev_dbg(&intf->dev, "Suspending device\n");
+ spin_lock_irqsave(&kaweth->device_lock, flags);
+ kaweth->status |= KAWETH_STATUS_SUSPENDING;
+ spin_unlock_irqrestore(&kaweth->device_lock, flags);
+
+ kaweth_kill_urbs(kaweth);
+ return 0;
+}
+
+/****************************************************************
+ * kaweth_resume
+ ****************************************************************/
+static int kaweth_resume(struct usb_interface *intf)
+{
+ struct kaweth_device *kaweth = usb_get_intfdata(intf);
+ unsigned long flags;
+
+ dev_dbg(&intf->dev, "Resuming device\n");
+ spin_lock_irqsave(&kaweth->device_lock, flags);
+ kaweth->status &= ~KAWETH_STATUS_SUSPENDING;
+ spin_unlock_irqrestore(&kaweth->device_lock, flags);
+
+ if (!kaweth->opened)
+ return 0;
+ kaweth_resubmit_rx_urb(kaweth, GFP_NOIO);
+ kaweth_resubmit_int_urb(kaweth, GFP_NOIO);
+
+ return 0;
+}
+
+/****************************************************************
+ * kaweth_probe
+ ****************************************************************/
+
+
+static const struct net_device_ops kaweth_netdev_ops = {
+ .ndo_open = kaweth_open,
+ .ndo_stop = kaweth_close,
+ .ndo_start_xmit = kaweth_start_xmit,
+ .ndo_tx_timeout = kaweth_tx_timeout,
+ .ndo_set_rx_mode = kaweth_set_rx_mode,
+ .ndo_get_stats = kaweth_netdev_stats,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int kaweth_probe(
+ struct usb_interface *intf,
+ const struct usb_device_id *id /* from id_table */
+ )
+{
+ struct device *dev = &intf->dev;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct kaweth_device *kaweth;
+ struct net_device *netdev;
+ const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+ int result = 0;
+ int rv = -EIO;
+
+ dev_dbg(dev,
+ "Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n",
+ udev->devnum, le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct),
+ le16_to_cpu(udev->descriptor.bcdDevice));
+
+ dev_dbg(dev, "Device at %p\n", udev);
+
+ dev_dbg(dev, "Descriptor length: %x type: %x\n",
+ (int)udev->descriptor.bLength,
+ (int)udev->descriptor.bDescriptorType);
+
+ netdev = alloc_etherdev(sizeof(*kaweth));
+ if (!netdev)
+ return -ENOMEM;
+
+ kaweth = netdev_priv(netdev);
+ kaweth->dev = udev;
+ kaweth->net = netdev;
+ kaweth->intf = intf;
+
+ spin_lock_init(&kaweth->device_lock);
+ init_waitqueue_head(&kaweth->term_wait);
+
+ dev_dbg(dev, "Resetting.\n");
+
+ kaweth_reset(kaweth);
+
+ /*
+ * If high byte of bcdDevice is nonzero, firmware is already
+ * downloaded. Don't try to do it again, or we'll hang the device.
+ */
+
+ if (le16_to_cpu(udev->descriptor.bcdDevice) >> 8) {
+ dev_info(dev, "Firmware present in device.\n");
+ } else {
+ /* Download the firmware */
+ dev_info(dev, "Downloading firmware...\n");
+ kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL);
+ if (!kaweth->firmware_buf) {
+ rv = -ENOMEM;
+ goto err_free_netdev;
+ }
+ if ((result = kaweth_download_firmware(kaweth,
+ "kaweth/new_code.bin",
+ 100,
+ 2)) < 0) {
+ dev_err(dev, "Error downloading firmware (%d)\n",
+ result);
+ goto err_fw;
+ }
+
+ if ((result = kaweth_download_firmware(kaweth,
+ "kaweth/new_code_fix.bin",
+ 100,
+ 3)) < 0) {
+ dev_err(dev, "Error downloading firmware fix (%d)\n",
+ result);
+ goto err_fw;
+ }
+
+ if ((result = kaweth_download_firmware(kaweth,
+ "kaweth/trigger_code.bin",
+ 126,
+ 2)) < 0) {
+ dev_err(dev, "Error downloading trigger code (%d)\n",
+ result);
+ goto err_fw;
+
+ }
+
+ if ((result = kaweth_download_firmware(kaweth,
+ "kaweth/trigger_code_fix.bin",
+ 126,
+ 3)) < 0) {
+ dev_err(dev, "Error downloading trigger code fix (%d)\n", result);
+ goto err_fw;
+ }
+
+
+ if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) {
+ dev_err(dev, "Error triggering firmware (%d)\n", result);
+ goto err_fw;
+ }
+
+ /* Device will now disappear for a moment... */
+ dev_info(dev, "Firmware loaded. I'll be back...\n");
+err_fw:
+ free_page((unsigned long)kaweth->firmware_buf);
+ free_netdev(netdev);
+ return -EIO;
+ }
+
+ result = kaweth_read_configuration(kaweth);
+
+ if(result < 0) {
+ dev_err(dev, "Error reading configuration (%d), no net device created\n", result);
+ goto err_free_netdev;
+ }
+
+ dev_info(dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask);
+ dev_info(dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
+ dev_info(dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size));
+ dev_info(dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr);
+
+ if(!memcmp(&kaweth->configuration.hw_addr,
+ &bcast_addr,
+ sizeof(bcast_addr))) {
+ dev_err(dev, "Firmware not functioning properly, no net device created\n");
+ goto err_free_netdev;
+ }
+
+ if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) {
+ dev_dbg(dev, "Error setting URB size\n");
+ goto err_free_netdev;
+ }
+
+ if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) {
+ dev_err(dev, "Error setting SOFS wait\n");
+ goto err_free_netdev;
+ }
+
+ result = kaweth_set_receive_filter(kaweth,
+ KAWETH_PACKET_FILTER_DIRECTED |
+ KAWETH_PACKET_FILTER_BROADCAST |
+ KAWETH_PACKET_FILTER_MULTICAST);
+
+ if(result < 0) {
+ dev_err(dev, "Error setting receive filter\n");
+ goto err_free_netdev;
+ }
+
+ dev_dbg(dev, "Initializing net device.\n");
+
+ kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!kaweth->tx_urb)
+ goto err_free_netdev;
+ kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!kaweth->rx_urb)
+ goto err_only_tx;
+ kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!kaweth->irq_urb)
+ goto err_tx_and_rx;
+
+ kaweth->intbuffer = usb_alloc_coherent( kaweth->dev,
+ INTBUFFERSIZE,
+ GFP_KERNEL,
+ &kaweth->intbufferhandle);
+ if (!kaweth->intbuffer)
+ goto err_tx_and_rx_and_irq;
+ kaweth->rx_buf = usb_alloc_coherent( kaweth->dev,
+ KAWETH_BUF_SIZE,
+ GFP_KERNEL,
+ &kaweth->rxbufferhandle);
+ if (!kaweth->rx_buf)
+ goto err_all_but_rxbuf;
+
+ memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr));
+ memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr,
+ sizeof(kaweth->configuration.hw_addr));
+
+ netdev->netdev_ops = &kaweth_netdev_ops;
+ netdev->watchdog_timeo = KAWETH_TX_TIMEOUT;
+ netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size);
+ netdev->ethtool_ops = &ops;
+
+ /* kaweth is zeroed as part of alloc_netdev */
+ INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl);
+ usb_set_intfdata(intf, kaweth);
+
+ SET_NETDEV_DEV(netdev, dev);
+ if (register_netdev(netdev) != 0) {
+ dev_err(dev, "Error registering netdev.\n");
+ goto err_intfdata;
+ }
+
+ dev_info(dev, "kaweth interface created at %s\n",
+ kaweth->net->name);
+
+ dev_dbg(dev, "Kaweth probe returning.\n");
+
+ return 0;
+
+err_intfdata:
+ usb_set_intfdata(intf, NULL);
+ usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
+err_all_but_rxbuf:
+ usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
+err_tx_and_rx_and_irq:
+ usb_free_urb(kaweth->irq_urb);
+err_tx_and_rx:
+ usb_free_urb(kaweth->rx_urb);
+err_only_tx:
+ usb_free_urb(kaweth->tx_urb);
+err_free_netdev:
+ free_netdev(netdev);
+
+ return rv;
+}
+
+/****************************************************************
+ * kaweth_disconnect
+ ****************************************************************/
+static void kaweth_disconnect(struct usb_interface *intf)
+{
+ struct kaweth_device *kaweth = usb_get_intfdata(intf);
+ struct net_device *netdev;
+
+ dev_info(&intf->dev, "Unregistering\n");
+
+ usb_set_intfdata(intf, NULL);
+ if (!kaweth) {
+ dev_warn(&intf->dev, "unregistering non-existent device\n");
+ return;
+ }
+ netdev = kaweth->net;
+
+ netdev_dbg(kaweth->net, "Unregistering net device\n");
+ unregister_netdev(netdev);
+
+ usb_free_urb(kaweth->rx_urb);
+ usb_free_urb(kaweth->tx_urb);
+ usb_free_urb(kaweth->irq_urb);
+
+ usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
+ usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
+
+ free_netdev(netdev);
+}
+
+
+// FIXME this completion stuff is a modified clone of
+// an OLD version of some stuff in usb.c ...
+struct usb_api_data {
+ wait_queue_head_t wqh;
+ int done;
+};
+
+/*-------------------------------------------------------------------*
+ * completion handler for compatibility wrappers (sync control/bulk) *
+ *-------------------------------------------------------------------*/
+static void usb_api_blocking_completion(struct urb *urb)
+{
+ struct usb_api_data *awd = (struct usb_api_data *)urb->context;
+
+ awd->done=1;
+ wake_up(&awd->wqh);
+}
+
+/*-------------------------------------------------------------------*
+ * COMPATIBILITY STUFF *
+ *-------------------------------------------------------------------*/
+
+// Starts urb and waits for completion or timeout
+static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length)
+{
+ struct usb_api_data awd;
+ int status;
+
+ init_waitqueue_head(&awd.wqh);
+ awd.done = 0;
+
+ urb->context = &awd;
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status) {
+ // something went wrong
+ usb_free_urb(urb);
+ return status;
+ }
+
+ if (!wait_event_timeout(awd.wqh, awd.done, timeout)) {
+ // timeout
+ dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n");
+ usb_kill_urb(urb); // remove urb safely
+ status = -ETIMEDOUT;
+ }
+ else {
+ status = urb->status;
+ }
+
+ if (actual_length) {
+ *actual_length = urb->actual_length;
+ }
+
+ usb_free_urb(urb);
+ return status;
+}
+
+/*-------------------------------------------------------------------*/
+// returns status (negative) or length (positive)
+static int kaweth_internal_control_msg(struct usb_device *usb_dev,
+ unsigned int pipe,
+ struct usb_ctrlrequest *cmd, void *data,
+ int len, int timeout)
+{
+ struct urb *urb;
+ int retv;
+ int length = 0; /* shut up GCC */
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data,
+ len, usb_api_blocking_completion, NULL);
+
+ retv = usb_start_wait_urb(urb, timeout, &length);
+ if (retv < 0) {
+ return retv;
+ }
+ else {
+ return length;
+ }
+}
+
+module_usb_driver(kaweth_driver);
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
new file mode 100644
index 0000000..226668e
--- /dev/null
+++ b/drivers/net/usb/lan78xx.c
@@ -0,0 +1,3394 @@
+/*
+ * Copyright (C) 2015 Microchip Technology
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/if_vlan.h>
+#include <linux/uaccess.h>
+#include <linux/list.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/mdio.h>
+#include <net/ip6_checksum.h>
+#include <linux/microchipphy.h>
+#include "lan78xx.h"
+
+#define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>"
+#define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices"
+#define DRIVER_NAME "lan78xx"
+#define DRIVER_VERSION "1.0.1"
+
+#define TX_TIMEOUT_JIFFIES (5 * HZ)
+#define THROTTLE_JIFFIES (HZ / 8)
+#define UNLINK_TIMEOUT_MS 3
+
+#define RX_MAX_QUEUE_MEMORY (60 * 1518)
+
+#define SS_USB_PKT_SIZE (1024)
+#define HS_USB_PKT_SIZE (512)
+#define FS_USB_PKT_SIZE (64)
+
+#define MAX_RX_FIFO_SIZE (12 * 1024)
+#define MAX_TX_FIFO_SIZE (12 * 1024)
+#define DEFAULT_BURST_CAP_SIZE (MAX_TX_FIFO_SIZE)
+#define DEFAULT_BULK_IN_DELAY (0x0800)
+#define MAX_SINGLE_PACKET_SIZE (9000)
+#define DEFAULT_TX_CSUM_ENABLE (true)
+#define DEFAULT_RX_CSUM_ENABLE (true)
+#define DEFAULT_TSO_CSUM_ENABLE (true)
+#define DEFAULT_VLAN_FILTER_ENABLE (true)
+#define TX_OVERHEAD (8)
+#define RXW_PADDING 2
+
+#define LAN78XX_USB_VENDOR_ID (0x0424)
+#define LAN7800_USB_PRODUCT_ID (0x7800)
+#define LAN7850_USB_PRODUCT_ID (0x7850)
+#define LAN78XX_EEPROM_MAGIC (0x78A5)
+#define LAN78XX_OTP_MAGIC (0x78F3)
+
+#define MII_READ 1
+#define MII_WRITE 0
+
+#define EEPROM_INDICATOR (0xA5)
+#define EEPROM_MAC_OFFSET (0x01)
+#define MAX_EEPROM_SIZE 512
+#define OTP_INDICATOR_1 (0xF3)
+#define OTP_INDICATOR_2 (0xF7)
+
+#define WAKE_ALL (WAKE_PHY | WAKE_UCAST | \
+ WAKE_MCAST | WAKE_BCAST | \
+ WAKE_ARP | WAKE_MAGIC)
+
+/* USB related defines */
+#define BULK_IN_PIPE 1
+#define BULK_OUT_PIPE 2
+
+/* default autosuspend delay (mSec)*/
+#define DEFAULT_AUTOSUSPEND_DELAY (10 * 1000)
+
+static const char lan78xx_gstrings[][ETH_GSTRING_LEN] = {
+ "RX FCS Errors",
+ "RX Alignment Errors",
+ "Rx Fragment Errors",
+ "RX Jabber Errors",
+ "RX Undersize Frame Errors",
+ "RX Oversize Frame Errors",
+ "RX Dropped Frames",
+ "RX Unicast Byte Count",
+ "RX Broadcast Byte Count",
+ "RX Multicast Byte Count",
+ "RX Unicast Frames",
+ "RX Broadcast Frames",
+ "RX Multicast Frames",
+ "RX Pause Frames",
+ "RX 64 Byte Frames",
+ "RX 65 - 127 Byte Frames",
+ "RX 128 - 255 Byte Frames",
+ "RX 256 - 511 Bytes Frames",
+ "RX 512 - 1023 Byte Frames",
+ "RX 1024 - 1518 Byte Frames",
+ "RX Greater 1518 Byte Frames",
+ "EEE RX LPI Transitions",
+ "EEE RX LPI Time",
+ "TX FCS Errors",
+ "TX Excess Deferral Errors",
+ "TX Carrier Errors",
+ "TX Bad Byte Count",
+ "TX Single Collisions",
+ "TX Multiple Collisions",
+ "TX Excessive Collision",
+ "TX Late Collisions",
+ "TX Unicast Byte Count",
+ "TX Broadcast Byte Count",
+ "TX Multicast Byte Count",
+ "TX Unicast Frames",
+ "TX Broadcast Frames",
+ "TX Multicast Frames",
+ "TX Pause Frames",
+ "TX 64 Byte Frames",
+ "TX 65 - 127 Byte Frames",
+ "TX 128 - 255 Byte Frames",
+ "TX 256 - 511 Bytes Frames",
+ "TX 512 - 1023 Byte Frames",
+ "TX 1024 - 1518 Byte Frames",
+ "TX Greater 1518 Byte Frames",
+ "EEE TX LPI Transitions",
+ "EEE TX LPI Time",
+};
+
+struct lan78xx_statstage {
+ u32 rx_fcs_errors;
+ u32 rx_alignment_errors;
+ u32 rx_fragment_errors;
+ u32 rx_jabber_errors;
+ u32 rx_undersize_frame_errors;
+ u32 rx_oversize_frame_errors;
+ u32 rx_dropped_frames;
+ u32 rx_unicast_byte_count;
+ u32 rx_broadcast_byte_count;
+ u32 rx_multicast_byte_count;
+ u32 rx_unicast_frames;
+ u32 rx_broadcast_frames;
+ u32 rx_multicast_frames;
+ u32 rx_pause_frames;
+ u32 rx_64_byte_frames;
+ u32 rx_65_127_byte_frames;
+ u32 rx_128_255_byte_frames;
+ u32 rx_256_511_bytes_frames;
+ u32 rx_512_1023_byte_frames;
+ u32 rx_1024_1518_byte_frames;
+ u32 rx_greater_1518_byte_frames;
+ u32 eee_rx_lpi_transitions;
+ u32 eee_rx_lpi_time;
+ u32 tx_fcs_errors;
+ u32 tx_excess_deferral_errors;
+ u32 tx_carrier_errors;
+ u32 tx_bad_byte_count;
+ u32 tx_single_collisions;
+ u32 tx_multiple_collisions;
+ u32 tx_excessive_collision;
+ u32 tx_late_collisions;
+ u32 tx_unicast_byte_count;
+ u32 tx_broadcast_byte_count;
+ u32 tx_multicast_byte_count;
+ u32 tx_unicast_frames;
+ u32 tx_broadcast_frames;
+ u32 tx_multicast_frames;
+ u32 tx_pause_frames;
+ u32 tx_64_byte_frames;
+ u32 tx_65_127_byte_frames;
+ u32 tx_128_255_byte_frames;
+ u32 tx_256_511_bytes_frames;
+ u32 tx_512_1023_byte_frames;
+ u32 tx_1024_1518_byte_frames;
+ u32 tx_greater_1518_byte_frames;
+ u32 eee_tx_lpi_transitions;
+ u32 eee_tx_lpi_time;
+};
+
+struct lan78xx_net;
+
+struct lan78xx_priv {
+ struct lan78xx_net *dev;
+ u32 rfe_ctl;
+ u32 mchash_table[DP_SEL_VHF_HASH_LEN]; /* multicat hash table */
+ u32 pfilter_table[NUM_OF_MAF][2]; /* perfect filter table */
+ u32 vlan_table[DP_SEL_VHF_VLAN_LEN];
+ struct mutex dataport_mutex; /* for dataport access */
+ spinlock_t rfe_ctl_lock; /* for rfe register access */
+ struct work_struct set_multicast;
+ struct work_struct set_vlan;
+ u32 wol;
+};
+
+enum skb_state {
+ illegal = 0,
+ tx_start,
+ tx_done,
+ rx_start,
+ rx_done,
+ rx_cleanup,
+ unlink_start
+};
+
+struct skb_data { /* skb->cb is one of these */
+ struct urb *urb;
+ struct lan78xx_net *dev;
+ enum skb_state state;
+ size_t length;
+};
+
+struct usb_context {
+ struct usb_ctrlrequest req;
+ struct lan78xx_net *dev;
+};
+
+#define EVENT_TX_HALT 0
+#define EVENT_RX_HALT 1
+#define EVENT_RX_MEMORY 2
+#define EVENT_STS_SPLIT 3
+#define EVENT_LINK_RESET 4
+#define EVENT_RX_PAUSED 5
+#define EVENT_DEV_WAKING 6
+#define EVENT_DEV_ASLEEP 7
+#define EVENT_DEV_OPEN 8
+
+struct lan78xx_net {
+ struct net_device *net;
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ void *driver_priv;
+
+ int rx_qlen;
+ int tx_qlen;
+ struct sk_buff_head rxq;
+ struct sk_buff_head txq;
+ struct sk_buff_head done;
+ struct sk_buff_head rxq_pause;
+ struct sk_buff_head txq_pend;
+
+ struct tasklet_struct bh;
+ struct delayed_work wq;
+
+ struct usb_host_endpoint *ep_blkin;
+ struct usb_host_endpoint *ep_blkout;
+ struct usb_host_endpoint *ep_intr;
+
+ int msg_enable;
+
+ struct urb *urb_intr;
+ struct usb_anchor deferred;
+
+ struct mutex phy_mutex; /* for phy access */
+ unsigned pipe_in, pipe_out, pipe_intr;
+
+ u32 hard_mtu; /* count any extra framing */
+ size_t rx_urb_size; /* size for rx urbs */
+
+ unsigned long flags;
+
+ wait_queue_head_t *wait;
+ unsigned char suspend_count;
+
+ unsigned maxpacket;
+ struct timer_list delay;
+
+ unsigned long data[5];
+
+ int link_on;
+ u8 mdix_ctrl;
+
+ u32 devid;
+ struct mii_bus *mdiobus;
+};
+
+/* use ethtool to change the level for any given device */
+static int msg_level = -1;
+module_param(msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Override default message level");
+
+static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
+{
+ u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
+ int ret;
+
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ USB_VENDOR_REQUEST_READ_REGISTER,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, buf, 4, USB_CTRL_GET_TIMEOUT);
+ if (likely(ret >= 0)) {
+ le32_to_cpus(buf);
+ *data = *buf;
+ } else {
+ netdev_warn(dev->net,
+ "Failed to read register index 0x%08x. ret = %d",
+ index, ret);
+ }
+
+ kfree(buf);
+
+ return ret;
+}
+
+static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data)
+{
+ u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
+ int ret;
+
+ if (!buf)
+ return -ENOMEM;
+
+ *buf = data;
+ cpu_to_le32s(buf);
+
+ ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ USB_VENDOR_REQUEST_WRITE_REGISTER,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, buf, 4, USB_CTRL_SET_TIMEOUT);
+ if (unlikely(ret < 0)) {
+ netdev_warn(dev->net,
+ "Failed to write register index 0x%08x. ret = %d",
+ index, ret);
+ }
+
+ kfree(buf);
+
+ return ret;
+}
+
+static int lan78xx_read_stats(struct lan78xx_net *dev,
+ struct lan78xx_statstage *data)
+{
+ int ret = 0;
+ int i;
+ struct lan78xx_statstage *stats;
+ u32 *src;
+ u32 *dst;
+
+ stats = kmalloc(sizeof(*stats), GFP_KERNEL);
+ if (!stats)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev,
+ usb_rcvctrlpipe(dev->udev, 0),
+ USB_VENDOR_REQUEST_GET_STATS,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0,
+ 0,
+ (void *)stats,
+ sizeof(*stats),
+ USB_CTRL_SET_TIMEOUT);
+ if (likely(ret >= 0)) {
+ src = (u32 *)stats;
+ dst = (u32 *)data;
+ for (i = 0; i < sizeof(*stats)/sizeof(u32); i++) {
+ le32_to_cpus(&src[i]);
+ dst[i] = src[i];
+ }
+ } else {
+ netdev_warn(dev->net,
+ "Failed to read stat ret = 0x%x", ret);
+ }
+
+ kfree(stats);
+
+ return ret;
+}
+
+/* Loop until the read is completed with timeout called with phy_mutex held */
+static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = lan78xx_read_reg(dev, MII_ACC, &val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ if (!(val & MII_ACC_MII_BUSY_))
+ return 0;
+ } while (!time_after(jiffies, start_time + HZ));
+
+ return -EIO;
+}
+
+static inline u32 mii_access(int id, int index, int read)
+{
+ u32 ret;
+
+ ret = ((u32)id << MII_ACC_PHY_ADDR_SHIFT_) & MII_ACC_PHY_ADDR_MASK_;
+ ret |= ((u32)index << MII_ACC_MIIRINDA_SHIFT_) & MII_ACC_MIIRINDA_MASK_;
+ if (read)
+ ret |= MII_ACC_MII_READ_;
+ else
+ ret |= MII_ACC_MII_WRITE_;
+ ret |= MII_ACC_MII_BUSY_;
+
+ return ret;
+}
+
+static int lan78xx_wait_eeprom(struct lan78xx_net *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = lan78xx_read_reg(dev, E2P_CMD, &val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ if (!(val & E2P_CMD_EPC_BUSY_) ||
+ (val & E2P_CMD_EPC_TIMEOUT_))
+ break;
+ usleep_range(40, 100);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) {
+ netdev_warn(dev->net, "EEPROM read operation timeout");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = lan78xx_read_reg(dev, E2P_CMD, &val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ if (!(val & E2P_CMD_EPC_BUSY_))
+ return 0;
+
+ usleep_range(40, 100);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ netdev_warn(dev->net, "EEPROM is busy");
+ return -EIO;
+}
+
+static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset,
+ u32 length, u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ ret = lan78xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+ val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_;
+ val |= (offset & E2P_CMD_EPC_ADDR_MASK_);
+ ret = lan78xx_write_reg(dev, E2P_CMD, val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ ret = lan78xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = lan78xx_read_reg(dev, E2P_DATA, &val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ data[i] = val & 0xFF;
+ offset++;
+ }
+
+ return 0;
+}
+
+static int lan78xx_read_eeprom(struct lan78xx_net *dev, u32 offset,
+ u32 length, u8 *data)
+{
+ u8 sig;
+ int ret;
+
+ ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig);
+ if ((ret == 0) && (sig == EEPROM_INDICATOR))
+ ret = lan78xx_read_raw_eeprom(dev, offset, length, data);
+ else
+ ret = -EINVAL;
+
+ return ret;
+}
+
+static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset,
+ u32 length, u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ ret = lan78xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ /* Issue write/erase enable command */
+ val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_;
+ ret = lan78xx_write_reg(dev, E2P_CMD, val);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ ret = lan78xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+ /* Fill data register */
+ val = data[i];
+ ret = lan78xx_write_reg(dev, E2P_DATA, val);
+ if (ret < 0)
+ return ret;
+
+ /* Send "write" command */
+ val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_;
+ val |= (offset & E2P_CMD_EPC_ADDR_MASK_);
+ ret = lan78xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0)
+ return ret;
+
+ ret = lan78xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ offset++;
+ }
+
+ return 0;
+}
+
+static int lan78xx_read_raw_otp(struct lan78xx_net *dev, u32 offset,
+ u32 length, u8 *data)
+{
+ int i;
+ int ret;
+ u32 buf;
+ unsigned long timeout;
+
+ ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf);
+
+ if (buf & OTP_PWR_DN_PWRDN_N_) {
+ /* clear it and wait to be cleared */
+ ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0);
+
+ timeout = jiffies + HZ;
+ do {
+ usleep_range(1, 10);
+ ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf);
+ if (time_after(jiffies, timeout)) {
+ netdev_warn(dev->net,
+ "timeout on OTP_PWR_DN");
+ return -EIO;
+ }
+ } while (buf & OTP_PWR_DN_PWRDN_N_);
+ }
+
+ for (i = 0; i < length; i++) {
+ ret = lan78xx_write_reg(dev, OTP_ADDR1,
+ ((offset + i) >> 8) & OTP_ADDR1_15_11);
+ ret = lan78xx_write_reg(dev, OTP_ADDR2,
+ ((offset + i) & OTP_ADDR2_10_3));
+
+ ret = lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_);
+ ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_);
+
+ timeout = jiffies + HZ;
+ do {
+ udelay(1);
+ ret = lan78xx_read_reg(dev, OTP_STATUS, &buf);
+ if (time_after(jiffies, timeout)) {
+ netdev_warn(dev->net,
+ "timeout on OTP_STATUS");
+ return -EIO;
+ }
+ } while (buf & OTP_STATUS_BUSY_);
+
+ ret = lan78xx_read_reg(dev, OTP_RD_DATA, &buf);
+
+ data[i] = (u8)(buf & 0xFF);
+ }
+
+ return 0;
+}
+
+static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset,
+ u32 length, u8 *data)
+{
+ u8 sig;
+ int ret;
+
+ ret = lan78xx_read_raw_otp(dev, 0, 1, &sig);
+
+ if (ret == 0) {
+ if (sig == OTP_INDICATOR_1)
+ offset = offset;
+ else if (sig == OTP_INDICATOR_2)
+ offset += 0x100;
+ else
+ ret = -EINVAL;
+ ret = lan78xx_read_raw_otp(dev, offset, length, data);
+ }
+
+ return ret;
+}
+
+static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev)
+{
+ int i, ret;
+
+ for (i = 0; i < 100; i++) {
+ u32 dp_sel;
+
+ ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ if (dp_sel & DP_SEL_DPRDY_)
+ return 0;
+
+ usleep_range(40, 100);
+ }
+
+ netdev_warn(dev->net, "lan78xx_dataport_wait_not_busy timed out");
+
+ return -EIO;
+}
+
+static int lan78xx_dataport_write(struct lan78xx_net *dev, u32 ram_select,
+ u32 addr, u32 length, u32 *buf)
+{
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ u32 dp_sel;
+ int i, ret;
+
+ if (usb_autopm_get_interface(dev->intf) < 0)
+ return 0;
+
+ mutex_lock(&pdata->dataport_mutex);
+
+ ret = lan78xx_dataport_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+
+ ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel);
+
+ dp_sel &= ~DP_SEL_RSEL_MASK_;
+ dp_sel |= ram_select;
+ ret = lan78xx_write_reg(dev, DP_SEL, dp_sel);
+
+ for (i = 0; i < length; i++) {
+ ret = lan78xx_write_reg(dev, DP_ADDR, addr + i);
+
+ ret = lan78xx_write_reg(dev, DP_DATA, buf[i]);
+
+ ret = lan78xx_write_reg(dev, DP_CMD, DP_CMD_WRITE_);
+
+ ret = lan78xx_dataport_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+ }
+
+done:
+ mutex_unlock(&pdata->dataport_mutex);
+ usb_autopm_put_interface(dev->intf);
+
+ return ret;
+}
+
+static void lan78xx_set_addr_filter(struct lan78xx_priv *pdata,
+ int index, u8 addr[ETH_ALEN])
+{
+ u32 temp;
+
+ if ((pdata) && (index > 0) && (index < NUM_OF_MAF)) {
+ temp = addr[3];
+ temp = addr[2] | (temp << 8);
+ temp = addr[1] | (temp << 8);
+ temp = addr[0] | (temp << 8);
+ pdata->pfilter_table[index][1] = temp;
+ temp = addr[5];
+ temp = addr[4] | (temp << 8);
+ temp |= MAF_HI_VALID_ | MAF_HI_TYPE_DST_;
+ pdata->pfilter_table[index][0] = temp;
+ }
+}
+
+/* returns hash bit number for given MAC address */
+static inline u32 lan78xx_hash(char addr[ETH_ALEN])
+{
+ return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff;
+}
+
+static void lan78xx_deferred_multicast_write(struct work_struct *param)
+{
+ struct lan78xx_priv *pdata =
+ container_of(param, struct lan78xx_priv, set_multicast);
+ struct lan78xx_net *dev = pdata->dev;
+ int i;
+ int ret;
+
+ netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n",
+ pdata->rfe_ctl);
+
+ lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, DP_SEL_VHF_VLAN_LEN,
+ DP_SEL_VHF_HASH_LEN, pdata->mchash_table);
+
+ for (i = 1; i < NUM_OF_MAF; i++) {
+ ret = lan78xx_write_reg(dev, MAF_HI(i), 0);
+ ret = lan78xx_write_reg(dev, MAF_LO(i),
+ pdata->pfilter_table[i][1]);
+ ret = lan78xx_write_reg(dev, MAF_HI(i),
+ pdata->pfilter_table[i][0]);
+ }
+
+ ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+}
+
+static void lan78xx_set_multicast(struct net_device *netdev)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
+
+ pdata->rfe_ctl &= ~(RFE_CTL_UCAST_EN_ | RFE_CTL_MCAST_EN_ |
+ RFE_CTL_DA_PERFECT_ | RFE_CTL_MCAST_HASH_);
+
+ for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++)
+ pdata->mchash_table[i] = 0;
+ /* pfilter_table[0] has own HW address */
+ for (i = 1; i < NUM_OF_MAF; i++) {
+ pdata->pfilter_table[i][0] =
+ pdata->pfilter_table[i][1] = 0;
+ }
+
+ pdata->rfe_ctl |= RFE_CTL_BCAST_EN_;
+
+ if (dev->net->flags & IFF_PROMISC) {
+ netif_dbg(dev, drv, dev->net, "promiscuous mode enabled");
+ pdata->rfe_ctl |= RFE_CTL_MCAST_EN_ | RFE_CTL_UCAST_EN_;
+ } else {
+ if (dev->net->flags & IFF_ALLMULTI) {
+ netif_dbg(dev, drv, dev->net,
+ "receive all multicast enabled");
+ pdata->rfe_ctl |= RFE_CTL_MCAST_EN_;
+ }
+ }
+
+ if (netdev_mc_count(dev->net)) {
+ struct netdev_hw_addr *ha;
+ int i;
+
+ netif_dbg(dev, drv, dev->net, "receive multicast hash filter");
+
+ pdata->rfe_ctl |= RFE_CTL_DA_PERFECT_;
+
+ i = 1;
+ netdev_for_each_mc_addr(ha, netdev) {
+ /* set first 32 into Perfect Filter */
+ if (i < 33) {
+ lan78xx_set_addr_filter(pdata, i, ha->addr);
+ } else {
+ u32 bitnum = lan78xx_hash(ha->addr);
+
+ pdata->mchash_table[bitnum / 32] |=
+ (1 << (bitnum % 32));
+ pdata->rfe_ctl |= RFE_CTL_MCAST_HASH_;
+ }
+ i++;
+ }
+ }
+
+ spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
+
+ /* defer register writes to a sleepable context */
+ schedule_work(&pdata->set_multicast);
+}
+
+static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex,
+ u16 lcladv, u16 rmtadv)
+{
+ u32 flow = 0, fct_flow = 0;
+ int ret;
+
+ u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+
+ if (cap & FLOW_CTRL_TX)
+ flow = (FLOW_CR_TX_FCEN_ | 0xFFFF);
+
+ if (cap & FLOW_CTRL_RX)
+ flow |= FLOW_CR_RX_FCEN_;
+
+ if (dev->udev->speed == USB_SPEED_SUPER)
+ fct_flow = 0x817;
+ else if (dev->udev->speed == USB_SPEED_HIGH)
+ fct_flow = 0x211;
+
+ netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s",
+ (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
+ (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+
+ ret = lan78xx_write_reg(dev, FCT_FLOW, fct_flow);
+
+ /* threshold value should be set before enabling flow */
+ ret = lan78xx_write_reg(dev, FLOW, flow);
+
+ return 0;
+}
+
+static int lan78xx_link_reset(struct lan78xx_net *dev)
+{
+ struct phy_device *phydev = dev->net->phydev;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ int ladv, radv, ret;
+ u32 buf;
+
+ /* clear PHY interrupt status */
+ ret = phy_read(phydev, LAN88XX_INT_STS);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ /* clear LAN78xx interrupt status */
+ ret = lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_);
+ if (unlikely(ret < 0))
+ return -EIO;
+
+ phy_read_status(phydev);
+
+ if (!phydev->link && dev->link_on) {
+ dev->link_on = false;
+ netif_carrier_off(dev->net);
+
+ /* reset MAC */
+ ret = lan78xx_read_reg(dev, MAC_CR, &buf);
+ if (unlikely(ret < 0))
+ return -EIO;
+ buf |= MAC_CR_RST_;
+ ret = lan78xx_write_reg(dev, MAC_CR, buf);
+ if (unlikely(ret < 0))
+ return -EIO;
+ } else if (phydev->link && !dev->link_on) {
+ dev->link_on = true;
+
+ phy_ethtool_gset(phydev, &ecmd);
+
+ ret = phy_read(phydev, LAN88XX_INT_STS);
+
+ if (dev->udev->speed == USB_SPEED_SUPER) {
+ if (ethtool_cmd_speed(&ecmd) == 1000) {
+ /* disable U2 */
+ ret = lan78xx_read_reg(dev, USB_CFG1, &buf);
+ buf &= ~USB_CFG1_DEV_U2_INIT_EN_;
+ ret = lan78xx_write_reg(dev, USB_CFG1, buf);
+ /* enable U1 */
+ ret = lan78xx_read_reg(dev, USB_CFG1, &buf);
+ buf |= USB_CFG1_DEV_U1_INIT_EN_;
+ ret = lan78xx_write_reg(dev, USB_CFG1, buf);
+ } else {
+ /* enable U1 & U2 */
+ ret = lan78xx_read_reg(dev, USB_CFG1, &buf);
+ buf |= USB_CFG1_DEV_U2_INIT_EN_;
+ buf |= USB_CFG1_DEV_U1_INIT_EN_;
+ ret = lan78xx_write_reg(dev, USB_CFG1, buf);
+ }
+ }
+
+ ladv = phy_read(phydev, MII_ADVERTISE);
+ if (ladv < 0)
+ return ladv;
+
+ radv = phy_read(phydev, MII_LPA);
+ if (radv < 0)
+ return radv;
+
+ netif_dbg(dev, link, dev->net,
+ "speed: %u duplex: %d anadv: 0x%04x anlpa: 0x%04x",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex, ladv, radv);
+
+ ret = lan78xx_update_flowcontrol(dev, ecmd.duplex, ladv, radv);
+ netif_carrier_on(dev->net);
+ }
+
+ return ret;
+}
+
+/* some work can't be done in tasklets, so we use keventd
+ *
+ * NOTE: annoying asymmetry: if it's active, schedule_work() fails,
+ * but tasklet_schedule() doesn't. hope the failure is rare.
+ */
+void lan78xx_defer_kevent(struct lan78xx_net *dev, int work)
+{
+ set_bit(work, &dev->flags);
+ if (!schedule_delayed_work(&dev->wq, 0))
+ netdev_err(dev->net, "kevent %d may have been dropped\n", work);
+}
+
+static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb)
+{
+ u32 intdata;
+
+ if (urb->actual_length != 4) {
+ netdev_warn(dev->net,
+ "unexpected urb length %d", urb->actual_length);
+ return;
+ }
+
+ memcpy(&intdata, urb->transfer_buffer, 4);
+ le32_to_cpus(&intdata);
+
+ if (intdata & INT_ENP_PHY_INT) {
+ netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata);
+ lan78xx_defer_kevent(dev, EVENT_LINK_RESET);
+ } else
+ netdev_warn(dev->net,
+ "unexpected interrupt: 0x%08x\n", intdata);
+}
+
+static int lan78xx_ethtool_get_eeprom_len(struct net_device *netdev)
+{
+ return MAX_EEPROM_SIZE;
+}
+
+static int lan78xx_ethtool_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+
+ ee->magic = LAN78XX_EEPROM_MAGIC;
+
+ return lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int lan78xx_ethtool_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+
+ /* Allow entire eeprom update only */
+ if ((ee->magic == LAN78XX_EEPROM_MAGIC) &&
+ (ee->offset == 0) &&
+ (ee->len == 512) &&
+ (data[0] == EEPROM_INDICATOR))
+ return lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data);
+ else if ((ee->magic == LAN78XX_OTP_MAGIC) &&
+ (ee->offset == 0) &&
+ (ee->len == 512) &&
+ (data[0] == OTP_INDICATOR_1))
+ return lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data);
+
+ return -EINVAL;
+}
+
+static void lan78xx_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(data, lan78xx_gstrings, sizeof(lan78xx_gstrings));
+}
+
+static int lan78xx_get_sset_count(struct net_device *netdev, int sset)
+{
+ if (sset == ETH_SS_STATS)
+ return ARRAY_SIZE(lan78xx_gstrings);
+ else
+ return -EOPNOTSUPP;
+}
+
+static void lan78xx_get_stats(struct net_device *netdev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_statstage lan78xx_stat;
+ u32 *p;
+ int i;
+
+ if (usb_autopm_get_interface(dev->intf) < 0)
+ return;
+
+ if (lan78xx_read_stats(dev, &lan78xx_stat) > 0) {
+ p = (u32 *)&lan78xx_stat;
+ for (i = 0; i < (sizeof(lan78xx_stat) / (sizeof(u32))); i++)
+ data[i] = p[i];
+ }
+
+ usb_autopm_put_interface(dev->intf);
+}
+
+static void lan78xx_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ int ret;
+ u32 buf;
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+
+ if (usb_autopm_get_interface(dev->intf) < 0)
+ return;
+
+ ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
+ if (unlikely(ret < 0)) {
+ wol->supported = 0;
+ wol->wolopts = 0;
+ } else {
+ if (buf & USB_CFG_RMT_WKP_) {
+ wol->supported = WAKE_ALL;
+ wol->wolopts = pdata->wol;
+ } else {
+ wol->supported = 0;
+ wol->wolopts = 0;
+ }
+ }
+
+ usb_autopm_put_interface(dev->intf);
+}
+
+static int lan78xx_set_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ int ret;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ pdata->wol = 0;
+ if (wol->wolopts & WAKE_UCAST)
+ pdata->wol |= WAKE_UCAST;
+ if (wol->wolopts & WAKE_MCAST)
+ pdata->wol |= WAKE_MCAST;
+ if (wol->wolopts & WAKE_BCAST)
+ pdata->wol |= WAKE_BCAST;
+ if (wol->wolopts & WAKE_MAGIC)
+ pdata->wol |= WAKE_MAGIC;
+ if (wol->wolopts & WAKE_PHY)
+ pdata->wol |= WAKE_PHY;
+ if (wol->wolopts & WAKE_ARP)
+ pdata->wol |= WAKE_ARP;
+
+ device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts);
+
+ phy_ethtool_set_wol(netdev->phydev, wol);
+
+ usb_autopm_put_interface(dev->intf);
+
+ return ret;
+}
+
+static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ struct phy_device *phydev = net->phydev;
+ int ret;
+ u32 buf;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ ret = phy_ethtool_get_eee(phydev, edata);
+ if (ret < 0)
+ goto exit;
+
+ ret = lan78xx_read_reg(dev, MAC_CR, &buf);
+ if (buf & MAC_CR_EEE_EN_) {
+ edata->eee_enabled = true;
+ edata->eee_active = !!(edata->advertised &
+ edata->lp_advertised);
+ edata->tx_lpi_enabled = true;
+ /* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */
+ ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf);
+ edata->tx_lpi_timer = buf;
+ } else {
+ edata->eee_enabled = false;
+ edata->eee_active = false;
+ edata->tx_lpi_enabled = false;
+ edata->tx_lpi_timer = 0;
+ }
+
+ ret = 0;
+exit:
+ usb_autopm_put_interface(dev->intf);
+
+ return ret;
+}
+
+static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ int ret;
+ u32 buf;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ if (edata->eee_enabled) {
+ ret = lan78xx_read_reg(dev, MAC_CR, &buf);
+ buf |= MAC_CR_EEE_EN_;
+ ret = lan78xx_write_reg(dev, MAC_CR, buf);
+
+ phy_ethtool_set_eee(net->phydev, edata);
+
+ buf = (u32)edata->tx_lpi_timer;
+ ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf);
+ } else {
+ ret = lan78xx_read_reg(dev, MAC_CR, &buf);
+ buf &= ~MAC_CR_EEE_EN_;
+ ret = lan78xx_write_reg(dev, MAC_CR, buf);
+ }
+
+ usb_autopm_put_interface(dev->intf);
+
+ return 0;
+}
+
+static u32 lan78xx_get_link(struct net_device *net)
+{
+ phy_read_status(net->phydev);
+
+ return net->phydev->link;
+}
+
+int lan78xx_nway_reset(struct net_device *net)
+{
+ return phy_start_aneg(net->phydev);
+}
+
+static void lan78xx_get_drvinfo(struct net_device *net,
+ struct ethtool_drvinfo *info)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+
+ strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
+}
+
+static u32 lan78xx_get_msglevel(struct net_device *net)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+
+ return dev->msg_enable;
+}
+
+static void lan78xx_set_msglevel(struct net_device *net, u32 level)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+
+ dev->msg_enable = level;
+}
+
+static int lan78xx_get_mdix_status(struct net_device *net)
+{
+ struct phy_device *phydev = net->phydev;
+ int buf;
+
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_1);
+ buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_0);
+
+ return buf;
+}
+
+static void lan78xx_set_mdix_status(struct net_device *net, __u8 mdix_ctrl)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ struct phy_device *phydev = net->phydev;
+ int buf;
+
+ if (mdix_ctrl == ETH_TP_MDI) {
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_1);
+ buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+ buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+ phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+ buf | LAN88XX_EXT_MODE_CTRL_MDI_);
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_0);
+ } else if (mdix_ctrl == ETH_TP_MDI_X) {
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_1);
+ buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+ buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+ phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+ buf | LAN88XX_EXT_MODE_CTRL_MDI_X_);
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_0);
+ } else if (mdix_ctrl == ETH_TP_MDI_AUTO) {
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_1);
+ buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+ buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+ phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+ buf | LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_);
+ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+ LAN88XX_EXT_PAGE_SPACE_0);
+ }
+ dev->mdix_ctrl = mdix_ctrl;
+}
+
+static int lan78xx_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ struct phy_device *phydev = net->phydev;
+ int ret;
+ int buf;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ ret = phy_ethtool_gset(phydev, cmd);
+
+ buf = lan78xx_get_mdix_status(net);
+
+ buf &= LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+ if (buf == LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_) {
+ cmd->eth_tp_mdix = ETH_TP_MDI_AUTO;
+ cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+ } else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_) {
+ cmd->eth_tp_mdix = ETH_TP_MDI;
+ cmd->eth_tp_mdix_ctrl = ETH_TP_MDI;
+ } else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_X_) {
+ cmd->eth_tp_mdix = ETH_TP_MDI_X;
+ cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_X;
+ }
+
+ usb_autopm_put_interface(dev->intf);
+
+ return ret;
+}
+
+static int lan78xx_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ struct phy_device *phydev = net->phydev;
+ int ret = 0;
+ int temp;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ if (dev->mdix_ctrl != cmd->eth_tp_mdix_ctrl) {
+ lan78xx_set_mdix_status(net, cmd->eth_tp_mdix_ctrl);
+ }
+
+ /* change speed & duplex */
+ ret = phy_ethtool_sset(phydev, cmd);
+
+ if (!cmd->autoneg) {
+ /* force link down */
+ temp = phy_read(phydev, MII_BMCR);
+ phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK);
+ mdelay(1);
+ phy_write(phydev, MII_BMCR, temp);
+ }
+
+ usb_autopm_put_interface(dev->intf);
+
+ return ret;
+}
+
+static const struct ethtool_ops lan78xx_ethtool_ops = {
+ .get_link = lan78xx_get_link,
+ .nway_reset = lan78xx_nway_reset,
+ .get_drvinfo = lan78xx_get_drvinfo,
+ .get_msglevel = lan78xx_get_msglevel,
+ .set_msglevel = lan78xx_set_msglevel,
+ .get_settings = lan78xx_get_settings,
+ .set_settings = lan78xx_set_settings,
+ .get_eeprom_len = lan78xx_ethtool_get_eeprom_len,
+ .get_eeprom = lan78xx_ethtool_get_eeprom,
+ .set_eeprom = lan78xx_ethtool_set_eeprom,
+ .get_ethtool_stats = lan78xx_get_stats,
+ .get_sset_count = lan78xx_get_sset_count,
+ .get_strings = lan78xx_get_strings,
+ .get_wol = lan78xx_get_wol,
+ .set_wol = lan78xx_set_wol,
+ .get_eee = lan78xx_get_eee,
+ .set_eee = lan78xx_set_eee,
+};
+
+static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ if (!netif_running(netdev))
+ return -EINVAL;
+
+ return phy_mii_ioctl(netdev->phydev, rq, cmd);
+}
+
+static void lan78xx_init_mac_address(struct lan78xx_net *dev)
+{
+ u32 addr_lo, addr_hi;
+ int ret;
+ u8 addr[6];
+
+ ret = lan78xx_read_reg(dev, RX_ADDRL, &addr_lo);
+ ret = lan78xx_read_reg(dev, RX_ADDRH, &addr_hi);
+
+ addr[0] = addr_lo & 0xFF;
+ addr[1] = (addr_lo >> 8) & 0xFF;
+ addr[2] = (addr_lo >> 16) & 0xFF;
+ addr[3] = (addr_lo >> 24) & 0xFF;
+ addr[4] = addr_hi & 0xFF;
+ addr[5] = (addr_hi >> 8) & 0xFF;
+
+ if (!is_valid_ether_addr(addr)) {
+ /* reading mac address from EEPROM or OTP */
+ if ((lan78xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+ addr) == 0) ||
+ (lan78xx_read_otp(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+ addr) == 0)) {
+ if (is_valid_ether_addr(addr)) {
+ /* eeprom values are valid so use them */
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from EEPROM");
+ } else {
+ /* generate random MAC */
+ random_ether_addr(addr);
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address set to random addr");
+ }
+
+ addr_lo = addr[0] | (addr[1] << 8) |
+ (addr[2] << 16) | (addr[3] << 24);
+ addr_hi = addr[4] | (addr[5] << 8);
+
+ ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo);
+ ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi);
+ } else {
+ /* generate random MAC */
+ random_ether_addr(addr);
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address set to random addr");
+ }
+ }
+
+ ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo);
+ ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_);
+
+ ether_addr_copy(dev->net->dev_addr, addr);
+}
+
+/* MDIO read and write wrappers for phylib */
+static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx)
+{
+ struct lan78xx_net *dev = bus->priv;
+ u32 val, addr;
+ int ret;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = lan78xx_phy_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+
+ /* set the address, index & direction (read from PHY) */
+ addr = mii_access(phy_id, idx, MII_READ);
+ ret = lan78xx_write_reg(dev, MII_ACC, addr);
+
+ ret = lan78xx_phy_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+
+ ret = lan78xx_read_reg(dev, MII_DATA, &val);
+
+ ret = (int)(val & 0xFFFF);
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+ usb_autopm_put_interface(dev->intf);
+ return ret;
+}
+
+static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
+ u16 regval)
+{
+ struct lan78xx_net *dev = bus->priv;
+ u32 val, addr;
+ int ret;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = lan78xx_phy_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+
+ val = (u32)regval;
+ ret = lan78xx_write_reg(dev, MII_DATA, val);
+
+ /* set the address, index & direction (write to PHY) */
+ addr = mii_access(phy_id, idx, MII_WRITE);
+ ret = lan78xx_write_reg(dev, MII_ACC, addr);
+
+ ret = lan78xx_phy_wait_not_busy(dev);
+ if (ret < 0)
+ goto done;
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+ usb_autopm_put_interface(dev->intf);
+ return 0;
+}
+
+static int lan78xx_mdio_init(struct lan78xx_net *dev)
+{
+ int ret;
+ int i;
+
+ dev->mdiobus = mdiobus_alloc();
+ if (!dev->mdiobus) {
+ netdev_err(dev->net, "can't allocate MDIO bus\n");
+ return -ENOMEM;
+ }
+
+ dev->mdiobus->priv = (void *)dev;
+ dev->mdiobus->read = lan78xx_mdiobus_read;
+ dev->mdiobus->write = lan78xx_mdiobus_write;
+ dev->mdiobus->name = "lan78xx-mdiobus";
+
+ snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+ dev->udev->bus->busnum, dev->udev->devnum);
+
+ dev->mdiobus->irq = kzalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+ if (!dev->mdiobus->irq) {
+ ret = -ENOMEM;
+ goto exit1;
+ }
+
+ /* handle our own interrupt */
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ dev->mdiobus->irq[i] = PHY_IGNORE_INTERRUPT;
+
+ switch (dev->devid & ID_REV_CHIP_ID_MASK_) {
+ case 0x78000000:
+ case 0x78500000:
+ /* set to internal PHY id */
+ dev->mdiobus->phy_mask = ~(1 << 1);
+ break;
+ }
+
+ ret = mdiobus_register(dev->mdiobus);
+ if (ret) {
+ netdev_err(dev->net, "can't register MDIO bus\n");
+ goto exit2;
+ }
+
+ netdev_dbg(dev->net, "registered mdiobus bus %s\n", dev->mdiobus->id);
+ return 0;
+exit2:
+ kfree(dev->mdiobus->irq);
+exit1:
+ mdiobus_free(dev->mdiobus);
+ return ret;
+}
+
+static void lan78xx_remove_mdio(struct lan78xx_net *dev)
+{
+ mdiobus_unregister(dev->mdiobus);
+ kfree(dev->mdiobus->irq);
+ mdiobus_free(dev->mdiobus);
+}
+
+static void lan78xx_link_status_change(struct net_device *net)
+{
+ /* nothing to do */
+}
+
+static int lan78xx_phy_init(struct lan78xx_net *dev)
+{
+ int ret;
+ struct phy_device *phydev = dev->net->phydev;
+
+ phydev = phy_find_first(dev->mdiobus);
+ if (!phydev) {
+ netdev_err(dev->net, "no PHY found\n");
+ return -EIO;
+ }
+
+ ret = phy_connect_direct(dev->net, phydev,
+ lan78xx_link_status_change,
+ PHY_INTERFACE_MODE_GMII);
+ if (ret) {
+ netdev_err(dev->net, "can't attach PHY to %s\n",
+ dev->mdiobus->id);
+ return -EIO;
+ }
+
+ /* set to AUTOMDIX */
+ lan78xx_set_mdix_status(dev->net, ETH_TP_MDI_AUTO);
+
+ /* MAC doesn't support 1000T Half */
+ phydev->supported &= ~SUPPORTED_1000baseT_Half;
+ phydev->supported |= (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+ genphy_config_aneg(phydev);
+
+ /* Workaround to enable PHY interrupt.
+ * phy_start_interrupts() is API for requesting and enabling
+ * PHY interrupt. However, USB-to-Ethernet device can't use
+ * request_irq() called in phy_start_interrupts().
+ * Set PHY to PHY_HALTED and call phy_start()
+ * to make a call to phy_enable_interrupts()
+ */
+ phy_stop(phydev);
+ phy_start(phydev);
+
+ netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
+
+ return 0;
+}
+
+static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size)
+{
+ int ret = 0;
+ u32 buf;
+ bool rxenabled;
+
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+
+ rxenabled = ((buf & MAC_RX_RXEN_) != 0);
+
+ if (rxenabled) {
+ buf &= ~MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+ }
+
+ /* add 4 to size for FCS */
+ buf &= ~MAC_RX_MAX_SIZE_MASK_;
+ buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT_) & MAC_RX_MAX_SIZE_MASK_);
+
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ if (rxenabled) {
+ buf |= MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+ }
+
+ return 0;
+}
+
+static int unlink_urbs(struct lan78xx_net *dev, struct sk_buff_head *q)
+{
+ struct sk_buff *skb;
+ unsigned long flags;
+ int count = 0;
+
+ spin_lock_irqsave(&q->lock, flags);
+ while (!skb_queue_empty(q)) {
+ struct skb_data *entry;
+ struct urb *urb;
+ int ret;
+
+ skb_queue_walk(q, skb) {
+ entry = (struct skb_data *)skb->cb;
+ if (entry->state != unlink_start)
+ goto found;
+ }
+ break;
+found:
+ entry->state = unlink_start;
+ urb = entry->urb;
+
+ /* Get reference count of the URB to avoid it to be
+ * freed during usb_unlink_urb, which may trigger
+ * use-after-free problem inside usb_unlink_urb since
+ * usb_unlink_urb is always racing with .complete
+ * handler(include defer_bh).
+ */
+ usb_get_urb(urb);
+ spin_unlock_irqrestore(&q->lock, flags);
+ /* during some PM-driven resume scenarios,
+ * these (async) unlinks complete immediately
+ */
+ ret = usb_unlink_urb(urb);
+ if (ret != -EINPROGRESS && ret != 0)
+ netdev_dbg(dev->net, "unlink urb err, %d\n", ret);
+ else
+ count++;
+ usb_put_urb(urb);
+ spin_lock_irqsave(&q->lock, flags);
+ }
+ spin_unlock_irqrestore(&q->lock, flags);
+ return count;
+}
+
+static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ int ll_mtu = new_mtu + netdev->hard_header_len;
+ int old_hard_mtu = dev->hard_mtu;
+ int old_rx_urb_size = dev->rx_urb_size;
+ int ret;
+
+ if (new_mtu > MAX_SINGLE_PACKET_SIZE)
+ return -EINVAL;
+
+ if (new_mtu <= 0)
+ return -EINVAL;
+ /* no second zero-length packet read wanted after mtu-sized packets */
+ if ((ll_mtu % dev->maxpacket) == 0)
+ return -EDOM;
+
+ ret = lan78xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN);
+
+ netdev->mtu = new_mtu;
+
+ dev->hard_mtu = netdev->mtu + netdev->hard_header_len;
+ if (dev->rx_urb_size == old_hard_mtu) {
+ dev->rx_urb_size = dev->hard_mtu;
+ if (dev->rx_urb_size > old_rx_urb_size) {
+ if (netif_running(dev->net)) {
+ unlink_urbs(dev, &dev->rxq);
+ tasklet_schedule(&dev->bh);
+ }
+ }
+ }
+
+ return 0;
+}
+
+int lan78xx_set_mac_addr(struct net_device *netdev, void *p)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+ u32 addr_lo, addr_hi;
+ int ret;
+
+ if (netif_running(netdev))
+ return -EBUSY;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ ether_addr_copy(netdev->dev_addr, addr->sa_data);
+
+ addr_lo = netdev->dev_addr[0] |
+ netdev->dev_addr[1] << 8 |
+ netdev->dev_addr[2] << 16 |
+ netdev->dev_addr[3] << 24;
+ addr_hi = netdev->dev_addr[4] |
+ netdev->dev_addr[5] << 8;
+
+ ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo);
+ ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi);
+
+ return 0;
+}
+
+/* Enable or disable Rx checksum offload engine */
+static int lan78xx_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
+
+ if (features & NETIF_F_RXCSUM) {
+ pdata->rfe_ctl |= RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_;
+ pdata->rfe_ctl |= RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_;
+ } else {
+ pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_);
+ pdata->rfe_ctl &= ~(RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_);
+ }
+
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ pdata->rfe_ctl |= RFE_CTL_VLAN_FILTER_;
+ else
+ pdata->rfe_ctl &= ~RFE_CTL_VLAN_FILTER_;
+
+ spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
+
+ ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+
+ return 0;
+}
+
+static void lan78xx_deferred_vlan_write(struct work_struct *param)
+{
+ struct lan78xx_priv *pdata =
+ container_of(param, struct lan78xx_priv, set_vlan);
+ struct lan78xx_net *dev = pdata->dev;
+
+ lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, 0,
+ DP_SEL_VHF_VLAN_LEN, pdata->vlan_table);
+}
+
+static int lan78xx_vlan_rx_add_vid(struct net_device *netdev,
+ __be16 proto, u16 vid)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ u16 vid_bit_index;
+ u16 vid_dword_index;
+
+ vid_dword_index = (vid >> 5) & 0x7F;
+ vid_bit_index = vid & 0x1F;
+
+ pdata->vlan_table[vid_dword_index] |= (1 << vid_bit_index);
+
+ /* defer register writes to a sleepable context */
+ schedule_work(&pdata->set_vlan);
+
+ return 0;
+}
+
+static int lan78xx_vlan_rx_kill_vid(struct net_device *netdev,
+ __be16 proto, u16 vid)
+{
+ struct lan78xx_net *dev = netdev_priv(netdev);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ u16 vid_bit_index;
+ u16 vid_dword_index;
+
+ vid_dword_index = (vid >> 5) & 0x7F;
+ vid_bit_index = vid & 0x1F;
+
+ pdata->vlan_table[vid_dword_index] &= ~(1 << vid_bit_index);
+
+ /* defer register writes to a sleepable context */
+ schedule_work(&pdata->set_vlan);
+
+ return 0;
+}
+
+static void lan78xx_init_ltm(struct lan78xx_net *dev)
+{
+ int ret;
+ u32 buf;
+ u32 regs[6] = { 0 };
+
+ ret = lan78xx_read_reg(dev, USB_CFG1, &buf);
+ if (buf & USB_CFG1_LTM_ENABLE_) {
+ u8 temp[2];
+ /* Get values from EEPROM first */
+ if (lan78xx_read_eeprom(dev, 0x3F, 2, temp) == 0) {
+ if (temp[0] == 24) {
+ ret = lan78xx_read_raw_eeprom(dev,
+ temp[1] * 2,
+ 24,
+ (u8 *)regs);
+ if (ret < 0)
+ return;
+ }
+ } else if (lan78xx_read_otp(dev, 0x3F, 2, temp) == 0) {
+ if (temp[0] == 24) {
+ ret = lan78xx_read_raw_otp(dev,
+ temp[1] * 2,
+ 24,
+ (u8 *)regs);
+ if (ret < 0)
+ return;
+ }
+ }
+ }
+
+ lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]);
+ lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]);
+ lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]);
+ lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]);
+ lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]);
+ lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]);
+}
+
+static int lan78xx_reset(struct lan78xx_net *dev)
+{
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ u32 buf;
+ int ret = 0;
+ unsigned long timeout;
+
+ ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ buf |= HW_CFG_LRST_;
+ ret = lan78xx_write_reg(dev, HW_CFG, buf);
+
+ timeout = jiffies + HZ;
+ do {
+ mdelay(1);
+ ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ if (time_after(jiffies, timeout)) {
+ netdev_warn(dev->net,
+ "timeout on completion of LiteReset");
+ return -EIO;
+ }
+ } while (buf & HW_CFG_LRST_);
+
+ lan78xx_init_mac_address(dev);
+
+ /* save DEVID for later usage */
+ ret = lan78xx_read_reg(dev, ID_REV, &buf);
+ dev->devid = buf;
+
+ /* Respond to the IN token with a NAK */
+ ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
+ buf |= USB_CFG_BIR_;
+ ret = lan78xx_write_reg(dev, USB_CFG0, buf);
+
+ /* Init LTM */
+ lan78xx_init_ltm(dev);
+
+ dev->net->hard_header_len += TX_OVERHEAD;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+ if (dev->udev->speed == USB_SPEED_SUPER) {
+ buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
+ dev->rx_qlen = 4;
+ dev->tx_qlen = 4;
+ } else if (dev->udev->speed == USB_SPEED_HIGH) {
+ buf = DEFAULT_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
+ dev->rx_qlen = RX_MAX_QUEUE_MEMORY / dev->rx_urb_size;
+ dev->tx_qlen = RX_MAX_QUEUE_MEMORY / dev->hard_mtu;
+ } else {
+ buf = DEFAULT_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
+ dev->rx_qlen = 4;
+ }
+
+ ret = lan78xx_write_reg(dev, BURST_CAP, buf);
+ ret = lan78xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
+
+ ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ buf |= HW_CFG_MEF_;
+ ret = lan78xx_write_reg(dev, HW_CFG, buf);
+
+ ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
+ buf |= USB_CFG_BCE_;
+ ret = lan78xx_write_reg(dev, USB_CFG0, buf);
+
+ /* set FIFO sizes */
+ buf = (MAX_RX_FIFO_SIZE - 512) / 512;
+ ret = lan78xx_write_reg(dev, FCT_RX_FIFO_END, buf);
+
+ buf = (MAX_TX_FIFO_SIZE - 512) / 512;
+ ret = lan78xx_write_reg(dev, FCT_TX_FIFO_END, buf);
+
+ ret = lan78xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
+ ret = lan78xx_write_reg(dev, FLOW, 0);
+ ret = lan78xx_write_reg(dev, FCT_FLOW, 0);
+
+ /* Don't need rfe_ctl_lock during initialisation */
+ ret = lan78xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl);
+ pdata->rfe_ctl |= RFE_CTL_BCAST_EN_ | RFE_CTL_DA_PERFECT_;
+ ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+
+ /* Enable or disable checksum offload engines */
+ lan78xx_set_features(dev->net, dev->net->features);
+
+ lan78xx_set_multicast(dev->net);
+
+ /* reset PHY */
+ ret = lan78xx_read_reg(dev, PMT_CTL, &buf);
+ buf |= PMT_CTL_PHY_RST_;
+ ret = lan78xx_write_reg(dev, PMT_CTL, buf);
+
+ timeout = jiffies + HZ;
+ do {
+ mdelay(1);
+ ret = lan78xx_read_reg(dev, PMT_CTL, &buf);
+ if (time_after(jiffies, timeout)) {
+ netdev_warn(dev->net, "timeout waiting for PHY Reset");
+ return -EIO;
+ }
+ } while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_));
+
+ ret = lan78xx_read_reg(dev, MAC_CR, &buf);
+ buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+ ret = lan78xx_write_reg(dev, MAC_CR, buf);
+
+ /* enable PHY interrupts */
+ ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf);
+ buf |= INT_ENP_PHY_INT;
+ ret = lan78xx_write_reg(dev, INT_EP_CTL, buf);
+
+ ret = lan78xx_read_reg(dev, MAC_TX, &buf);
+ buf |= MAC_TX_TXEN_;
+ ret = lan78xx_write_reg(dev, MAC_TX, buf);
+
+ ret = lan78xx_read_reg(dev, FCT_TX_CTL, &buf);
+ buf |= FCT_TX_CTL_EN_;
+ ret = lan78xx_write_reg(dev, FCT_TX_CTL, buf);
+
+ ret = lan78xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN);
+
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf |= MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ ret = lan78xx_read_reg(dev, FCT_RX_CTL, &buf);
+ buf |= FCT_RX_CTL_EN_;
+ ret = lan78xx_write_reg(dev, FCT_RX_CTL, buf);
+
+ return 0;
+}
+
+static int lan78xx_open(struct net_device *net)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ int ret;
+
+ ret = usb_autopm_get_interface(dev->intf);
+ if (ret < 0)
+ goto out;
+
+ ret = lan78xx_reset(dev);
+ if (ret < 0)
+ goto done;
+
+ ret = lan78xx_phy_init(dev);
+ if (ret < 0)
+ goto done;
+
+ /* for Link Check */
+ if (dev->urb_intr) {
+ ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);
+ if (ret < 0) {
+ netif_err(dev, ifup, dev->net,
+ "intr submit %d\n", ret);
+ goto done;
+ }
+ }
+
+ set_bit(EVENT_DEV_OPEN, &dev->flags);
+
+ netif_start_queue(net);
+
+ dev->link_on = false;
+
+ lan78xx_defer_kevent(dev, EVENT_LINK_RESET);
+done:
+ usb_autopm_put_interface(dev->intf);
+
+out:
+ return ret;
+}
+
+static void lan78xx_terminate_urbs(struct lan78xx_net *dev)
+{
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup);
+ DECLARE_WAITQUEUE(wait, current);
+ int temp;
+
+ /* ensure there are no more active urbs */
+ add_wait_queue(&unlink_wakeup, &wait);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ dev->wait = &unlink_wakeup;
+ temp = unlink_urbs(dev, &dev->txq) + unlink_urbs(dev, &dev->rxq);
+
+ /* maybe wait for deletions to finish. */
+ while (!skb_queue_empty(&dev->rxq) &&
+ !skb_queue_empty(&dev->txq) &&
+ !skb_queue_empty(&dev->done)) {
+ schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS));
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ netif_dbg(dev, ifdown, dev->net,
+ "waited for %d urb completions\n", temp);
+ }
+ set_current_state(TASK_RUNNING);
+ dev->wait = NULL;
+ remove_wait_queue(&unlink_wakeup, &wait);
+}
+
+int lan78xx_stop(struct net_device *net)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+
+ phy_stop(net->phydev);
+ phy_disconnect(net->phydev);
+ net->phydev = NULL;
+
+ clear_bit(EVENT_DEV_OPEN, &dev->flags);
+ netif_stop_queue(net);
+
+ netif_info(dev, ifdown, dev->net,
+ "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n",
+ net->stats.rx_packets, net->stats.tx_packets,
+ net->stats.rx_errors, net->stats.tx_errors);
+
+ lan78xx_terminate_urbs(dev);
+
+ usb_kill_urb(dev->urb_intr);
+
+ skb_queue_purge(&dev->rxq_pause);
+
+ /* deferred work (task, timer, softirq) must also stop.
+ * can't flush_scheduled_work() until we drop rtnl (later),
+ * else workers could deadlock; so make workers a NOP.
+ */
+ dev->flags = 0;
+ cancel_delayed_work_sync(&dev->wq);
+ tasklet_kill(&dev->bh);
+
+ usb_autopm_put_interface(dev->intf);
+
+ return 0;
+}
+
+static int lan78xx_linearize(struct sk_buff *skb)
+{
+ return skb_linearize(skb);
+}
+
+static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ u32 tx_cmd_a, tx_cmd_b;
+
+ if (skb_headroom(skb) < TX_OVERHEAD) {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ if (lan78xx_linearize(skb) < 0)
+ return NULL;
+
+ tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN_MASK_) | TX_CMD_A_FCS_;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ tx_cmd_a |= TX_CMD_A_IPE_ | TX_CMD_A_TPE_;
+
+ tx_cmd_b = 0;
+ if (skb_is_gso(skb)) {
+ u16 mss = max(skb_shinfo(skb)->gso_size, TX_CMD_B_MSS_MIN_);
+
+ tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT_) & TX_CMD_B_MSS_MASK_;
+
+ tx_cmd_a |= TX_CMD_A_LSO_;
+ }
+
+ if (skb_vlan_tag_present(skb)) {
+ tx_cmd_a |= TX_CMD_A_IVTG_;
+ tx_cmd_b |= skb_vlan_tag_get(skb) & TX_CMD_B_VTAG_MASK_;
+ }
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_cmd_b);
+ memcpy(skb->data, &tx_cmd_b, 4);
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_cmd_a);
+ memcpy(skb->data, &tx_cmd_a, 4);
+
+ return skb;
+}
+
+static enum skb_state defer_bh(struct lan78xx_net *dev, struct sk_buff *skb,
+ struct sk_buff_head *list, enum skb_state state)
+{
+ unsigned long flags;
+ enum skb_state old_state;
+ struct skb_data *entry = (struct skb_data *)skb->cb;
+
+ spin_lock_irqsave(&list->lock, flags);
+ old_state = entry->state;
+ entry->state = state;
+
+ __skb_unlink(skb, list);
+ spin_unlock(&list->lock);
+ spin_lock(&dev->done.lock);
+
+ __skb_queue_tail(&dev->done, skb);
+ if (skb_queue_len(&dev->done) == 1)
+ tasklet_schedule(&dev->bh);
+ spin_unlock_irqrestore(&dev->done.lock, flags);
+
+ return old_state;
+}
+
+static void tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *)urb->context;
+ struct skb_data *entry = (struct skb_data *)skb->cb;
+ struct lan78xx_net *dev = entry->dev;
+
+ if (urb->status == 0) {
+ dev->net->stats.tx_packets++;
+ dev->net->stats.tx_bytes += entry->length;
+ } else {
+ dev->net->stats.tx_errors++;
+
+ switch (urb->status) {
+ case -EPIPE:
+ lan78xx_defer_kevent(dev, EVENT_TX_HALT);
+ break;
+
+ /* software-driven interface shutdown */
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ break;
+
+ case -EPROTO:
+ case -ETIME:
+ case -EILSEQ:
+ netif_stop_queue(dev->net);
+ break;
+ default:
+ netif_dbg(dev, tx_err, dev->net,
+ "tx err %d\n", entry->urb->status);
+ break;
+ }
+ }
+
+ usb_autopm_put_interface_async(dev->intf);
+
+ defer_bh(dev, skb, &dev->txq, tx_done);
+}
+
+static void lan78xx_queue_skb(struct sk_buff_head *list,
+ struct sk_buff *newsk, enum skb_state state)
+{
+ struct skb_data *entry = (struct skb_data *)newsk->cb;
+
+ __skb_queue_tail(list, newsk);
+ entry->state = state;
+}
+
+netdev_tx_t lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+ struct sk_buff *skb2 = NULL;
+
+ if (skb) {
+ skb_tx_timestamp(skb);
+ skb2 = lan78xx_tx_prep(dev, skb, GFP_ATOMIC);
+ }
+
+ if (skb2) {
+ skb_queue_tail(&dev->txq_pend, skb2);
+
+ if (skb_queue_len(&dev->txq_pend) > 10)
+ netif_stop_queue(net);
+ } else {
+ netif_dbg(dev, tx_err, dev->net,
+ "lan78xx_tx_prep return NULL\n");
+ dev->net->stats.tx_errors++;
+ dev->net->stats.tx_dropped++;
+ }
+
+ tasklet_schedule(&dev->bh);
+
+ return NETDEV_TX_OK;
+}
+
+int lan78xx_get_endpoints(struct lan78xx_net *dev, struct usb_interface *intf)
+{
+ int tmp;
+ struct usb_host_interface *alt = NULL;
+ struct usb_host_endpoint *in = NULL, *out = NULL;
+ struct usb_host_endpoint *status = NULL;
+
+ for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
+ unsigned ep;
+
+ in = NULL;
+ out = NULL;
+ status = NULL;
+ alt = intf->altsetting + tmp;
+
+ for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
+ struct usb_host_endpoint *e;
+ int intr = 0;
+
+ e = alt->endpoint + ep;
+ switch (e->desc.bmAttributes) {
+ case USB_ENDPOINT_XFER_INT:
+ if (!usb_endpoint_dir_in(&e->desc))
+ continue;
+ intr = 1;
+ /* FALLTHROUGH */
+ case USB_ENDPOINT_XFER_BULK:
+ break;
+ default:
+ continue;
+ }
+ if (usb_endpoint_dir_in(&e->desc)) {
+ if (!intr && !in)
+ in = e;
+ else if (intr && !status)
+ status = e;
+ } else {
+ if (!out)
+ out = e;
+ }
+ }
+ if (in && out)
+ break;
+ }
+ if (!alt || !in || !out)
+ return -EINVAL;
+
+ dev->pipe_in = usb_rcvbulkpipe(dev->udev,
+ in->desc.bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK);
+ dev->pipe_out = usb_sndbulkpipe(dev->udev,
+ out->desc.bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK);
+ dev->ep_intr = status;
+
+ return 0;
+}
+
+static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf)
+{
+ struct lan78xx_priv *pdata = NULL;
+ int ret;
+ int i;
+
+ ret = lan78xx_get_endpoints(dev, intf);
+
+ dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL);
+
+ pdata = (struct lan78xx_priv *)(dev->data[0]);
+ if (!pdata) {
+ netdev_warn(dev->net, "Unable to allocate lan78xx_priv");
+ return -ENOMEM;
+ }
+
+ pdata->dev = dev;
+
+ spin_lock_init(&pdata->rfe_ctl_lock);
+ mutex_init(&pdata->dataport_mutex);
+
+ INIT_WORK(&pdata->set_multicast, lan78xx_deferred_multicast_write);
+
+ for (i = 0; i < DP_SEL_VHF_VLAN_LEN; i++)
+ pdata->vlan_table[i] = 0;
+
+ INIT_WORK(&pdata->set_vlan, lan78xx_deferred_vlan_write);
+
+ dev->net->features = 0;
+
+ if (DEFAULT_TX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_HW_CSUM;
+
+ if (DEFAULT_RX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_RXCSUM;
+
+ if (DEFAULT_TSO_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG;
+
+ dev->net->hw_features = dev->net->features;
+
+ /* Init all registers */
+ ret = lan78xx_reset(dev);
+
+ lan78xx_mdio_init(dev);
+
+ dev->net->flags |= IFF_MULTICAST;
+
+ pdata->wol = WAKE_MAGIC;
+
+ return 0;
+}
+
+static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf)
+{
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+
+ lan78xx_remove_mdio(dev);
+
+ if (pdata) {
+ netif_dbg(dev, ifdown, dev->net, "free pdata");
+ kfree(pdata);
+ pdata = NULL;
+ dev->data[0] = 0;
+ }
+}
+
+static void lan78xx_rx_csum_offload(struct lan78xx_net *dev,
+ struct sk_buff *skb,
+ u32 rx_cmd_a, u32 rx_cmd_b)
+{
+ if (!(dev->net->features & NETIF_F_RXCSUM) ||
+ unlikely(rx_cmd_a & RX_CMD_A_ICSM_)) {
+ skb->ip_summed = CHECKSUM_NONE;
+ } else {
+ skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT_));
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+}
+
+void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb)
+{
+ int status;
+
+ if (test_bit(EVENT_RX_PAUSED, &dev->flags)) {
+ skb_queue_tail(&dev->rxq_pause, skb);
+ return;
+ }
+
+ skb->protocol = eth_type_trans(skb, dev->net);
+ dev->net->stats.rx_packets++;
+ dev->net->stats.rx_bytes += skb->len;
+
+ netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
+ skb->len + sizeof(struct ethhdr), skb->protocol);
+ memset(skb->cb, 0, sizeof(struct skb_data));
+
+ if (skb_defer_rx_timestamp(skb))
+ return;
+
+ status = netif_rx(skb);
+ if (status != NET_RX_SUCCESS)
+ netif_dbg(dev, rx_err, dev->net,
+ "netif_rx status %d\n", status);
+}
+
+static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb)
+{
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ while (skb->len > 0) {
+ u32 rx_cmd_a, rx_cmd_b, align_count, size;
+ u16 rx_cmd_c;
+ struct sk_buff *skb2;
+ unsigned char *packet;
+
+ memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a));
+ le32_to_cpus(&rx_cmd_a);
+ skb_pull(skb, sizeof(rx_cmd_a));
+
+ memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b));
+ le32_to_cpus(&rx_cmd_b);
+ skb_pull(skb, sizeof(rx_cmd_b));
+
+ memcpy(&rx_cmd_c, skb->data, sizeof(rx_cmd_c));
+ le16_to_cpus(&rx_cmd_c);
+ skb_pull(skb, sizeof(rx_cmd_c));
+
+ packet = skb->data;
+
+ /* get the packet length */
+ size = (rx_cmd_a & RX_CMD_A_LEN_MASK_);
+ align_count = (4 - ((size + RXW_PADDING) % 4)) % 4;
+
+ if (unlikely(rx_cmd_a & RX_CMD_A_RED_)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "Error rx_cmd_a=0x%08x", rx_cmd_a);
+ } else {
+ /* last frame in this batch */
+ if (skb->len == size) {
+ lan78xx_rx_csum_offload(dev, skb,
+ rx_cmd_a, rx_cmd_b);
+
+ skb_trim(skb, skb->len - 4); /* remove fcs */
+ skb->truesize = size + sizeof(struct sk_buff);
+
+ return 1;
+ }
+
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!skb2)) {
+ netdev_warn(dev->net, "Error allocating skb");
+ return 0;
+ }
+
+ skb2->len = size;
+ skb2->data = packet;
+ skb_set_tail_pointer(skb2, size);
+
+ lan78xx_rx_csum_offload(dev, skb2, rx_cmd_a, rx_cmd_b);
+
+ skb_trim(skb2, skb2->len - 4); /* remove fcs */
+ skb2->truesize = size + sizeof(struct sk_buff);
+
+ lan78xx_skb_return(dev, skb2);
+ }
+
+ skb_pull(skb, size);
+
+ /* padding bytes before the next frame starts */
+ if (skb->len)
+ skb_pull(skb, align_count);
+ }
+
+ return 1;
+}
+
+static inline void rx_process(struct lan78xx_net *dev, struct sk_buff *skb)
+{
+ if (!lan78xx_rx(dev, skb)) {
+ dev->net->stats.rx_errors++;
+ goto done;
+ }
+
+ if (skb->len) {
+ lan78xx_skb_return(dev, skb);
+ return;
+ }
+
+ netif_dbg(dev, rx_err, dev->net, "drop\n");
+ dev->net->stats.rx_errors++;
+done:
+ skb_queue_tail(&dev->done, skb);
+}
+
+static void rx_complete(struct urb *urb);
+
+static int rx_submit(struct lan78xx_net *dev, struct urb *urb, gfp_t flags)
+{
+ struct sk_buff *skb;
+ struct skb_data *entry;
+ unsigned long lockflags;
+ size_t size = dev->rx_urb_size;
+ int ret = 0;
+
+ skb = netdev_alloc_skb_ip_align(dev->net, size);
+ if (!skb) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ entry = (struct skb_data *)skb->cb;
+ entry->urb = urb;
+ entry->dev = dev;
+ entry->length = 0;
+
+ usb_fill_bulk_urb(urb, dev->udev, dev->pipe_in,
+ skb->data, size, rx_complete, skb);
+
+ spin_lock_irqsave(&dev->rxq.lock, lockflags);
+
+ if (netif_device_present(dev->net) &&
+ netif_running(dev->net) &&
+ !test_bit(EVENT_RX_HALT, &dev->flags) &&
+ !test_bit(EVENT_DEV_ASLEEP, &dev->flags)) {
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ switch (ret) {
+ case 0:
+ lan78xx_queue_skb(&dev->rxq, skb, rx_start);
+ break;
+ case -EPIPE:
+ lan78xx_defer_kevent(dev, EVENT_RX_HALT);
+ break;
+ case -ENODEV:
+ netif_dbg(dev, ifdown, dev->net, "device gone\n");
+ netif_device_detach(dev->net);
+ break;
+ case -EHOSTUNREACH:
+ ret = -ENOLINK;
+ break;
+ default:
+ netif_dbg(dev, rx_err, dev->net,
+ "rx submit, %d\n", ret);
+ tasklet_schedule(&dev->bh);
+ }
+ } else {
+ netif_dbg(dev, ifdown, dev->net, "rx: stopped\n");
+ ret = -ENOLINK;
+ }
+ spin_unlock_irqrestore(&dev->rxq.lock, lockflags);
+ if (ret) {
+ dev_kfree_skb_any(skb);
+ usb_free_urb(urb);
+ }
+ return ret;
+}
+
+static void rx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *)urb->context;
+ struct skb_data *entry = (struct skb_data *)skb->cb;
+ struct lan78xx_net *dev = entry->dev;
+ int urb_status = urb->status;
+ enum skb_state state;
+
+ skb_put(skb, urb->actual_length);
+ state = rx_done;
+ entry->urb = NULL;
+
+ switch (urb_status) {
+ case 0:
+ if (skb->len < dev->net->hard_header_len) {
+ state = rx_cleanup;
+ dev->net->stats.rx_errors++;
+ dev->net->stats.rx_length_errors++;
+ netif_dbg(dev, rx_err, dev->net,
+ "rx length %d\n", skb->len);
+ }
+ usb_mark_last_busy(dev->udev);
+ break;
+ case -EPIPE:
+ dev->net->stats.rx_errors++;
+ lan78xx_defer_kevent(dev, EVENT_RX_HALT);
+ /* FALLTHROUGH */
+ case -ECONNRESET: /* async unlink */
+ case -ESHUTDOWN: /* hardware gone */
+ netif_dbg(dev, ifdown, dev->net,
+ "rx shutdown, code %d\n", urb_status);
+ state = rx_cleanup;
+ entry->urb = urb;
+ urb = NULL;
+ break;
+ case -EPROTO:
+ case -ETIME:
+ case -EILSEQ:
+ dev->net->stats.rx_errors++;
+ state = rx_cleanup;
+ entry->urb = urb;
+ urb = NULL;
+ break;
+
+ /* data overrun ... flush fifo? */
+ case -EOVERFLOW:
+ dev->net->stats.rx_over_errors++;
+ /* FALLTHROUGH */
+
+ default:
+ state = rx_cleanup;
+ dev->net->stats.rx_errors++;
+ netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status);
+ break;
+ }
+
+ state = defer_bh(dev, skb, &dev->rxq, state);
+
+ if (urb) {
+ if (netif_running(dev->net) &&
+ !test_bit(EVENT_RX_HALT, &dev->flags) &&
+ state != unlink_start) {
+ rx_submit(dev, urb, GFP_ATOMIC);
+ return;
+ }
+ usb_free_urb(urb);
+ }
+ netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n");
+}
+
+static void lan78xx_tx_bh(struct lan78xx_net *dev)
+{
+ int length;
+ struct urb *urb = NULL;
+ struct skb_data *entry;
+ unsigned long flags;
+ struct sk_buff_head *tqp = &dev->txq_pend;
+ struct sk_buff *skb, *skb2;
+ int ret;
+ int count, pos;
+ int skb_totallen, pkt_cnt;
+
+ skb_totallen = 0;
+ pkt_cnt = 0;
+ for (skb = tqp->next; pkt_cnt < tqp->qlen; skb = skb->next) {
+ if (skb_is_gso(skb)) {
+ if (pkt_cnt) {
+ /* handle previous packets first */
+ break;
+ }
+ length = skb->len;
+ skb2 = skb_dequeue(tqp);
+ goto gso_skb;
+ }
+
+ if ((skb_totallen + skb->len) > MAX_SINGLE_PACKET_SIZE)
+ break;
+ skb_totallen = skb->len + roundup(skb_totallen, sizeof(u32));
+ pkt_cnt++;
+ }
+
+ /* copy to a single skb */
+ skb = alloc_skb(skb_totallen, GFP_ATOMIC);
+ if (!skb)
+ goto drop;
+
+ skb_put(skb, skb_totallen);
+
+ for (count = pos = 0; count < pkt_cnt; count++) {
+ skb2 = skb_dequeue(tqp);
+ if (skb2) {
+ memcpy(skb->data + pos, skb2->data, skb2->len);
+ pos += roundup(skb2->len, sizeof(u32));
+ dev_kfree_skb(skb2);
+ }
+ }
+
+ length = skb_totallen;
+
+gso_skb:
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ netif_dbg(dev, tx_err, dev->net, "no urb\n");
+ goto drop;
+ }
+
+ entry = (struct skb_data *)skb->cb;
+ entry->urb = urb;
+ entry->dev = dev;
+ entry->length = length;
+
+ spin_lock_irqsave(&dev->txq.lock, flags);
+ ret = usb_autopm_get_interface_async(dev->intf);
+ if (ret < 0) {
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
+ goto drop;
+ }
+
+ usb_fill_bulk_urb(urb, dev->udev, dev->pipe_out,
+ skb->data, skb->len, tx_complete, skb);
+
+ if (length % dev->maxpacket == 0) {
+ /* send USB_ZERO_PACKET */
+ urb->transfer_flags |= URB_ZERO_PACKET;
+ }
+
+#ifdef CONFIG_PM
+ /* if this triggers the device is still a sleep */
+ if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) {
+ /* transmission will be done in resume */
+ usb_anchor_urb(urb, &dev->deferred);
+ /* no use to process more packets */
+ netif_stop_queue(dev->net);
+ usb_put_urb(urb);
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
+ netdev_dbg(dev->net, "Delaying transmission for resumption\n");
+ return;
+ }
+#endif
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ switch (ret) {
+ case 0:
+ dev->net->trans_start = jiffies;
+ lan78xx_queue_skb(&dev->txq, skb, tx_start);
+ if (skb_queue_len(&dev->txq) >= dev->tx_qlen)
+ netif_stop_queue(dev->net);
+ break;
+ case -EPIPE:
+ netif_stop_queue(dev->net);
+ lan78xx_defer_kevent(dev, EVENT_TX_HALT);
+ usb_autopm_put_interface_async(dev->intf);
+ break;
+ default:
+ usb_autopm_put_interface_async(dev->intf);
+ netif_dbg(dev, tx_err, dev->net,
+ "tx: submit urb err %d\n", ret);
+ break;
+ }
+
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
+
+ if (ret) {
+ netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", ret);
+drop:
+ dev->net->stats.tx_dropped++;
+ if (skb)
+ dev_kfree_skb_any(skb);
+ usb_free_urb(urb);
+ } else
+ netif_dbg(dev, tx_queued, dev->net,
+ "> tx, len %d, type 0x%x\n", length, skb->protocol);
+}
+
+static void lan78xx_rx_bh(struct lan78xx_net *dev)
+{
+ struct urb *urb;
+ int i;
+
+ if (skb_queue_len(&dev->rxq) < dev->rx_qlen) {
+ for (i = 0; i < 10; i++) {
+ if (skb_queue_len(&dev->rxq) >= dev->rx_qlen)
+ break;
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (urb)
+ if (rx_submit(dev, urb, GFP_ATOMIC) == -ENOLINK)
+ return;
+ }
+
+ if (skb_queue_len(&dev->rxq) < dev->rx_qlen)
+ tasklet_schedule(&dev->bh);
+ }
+ if (skb_queue_len(&dev->txq) < dev->tx_qlen)
+ netif_wake_queue(dev->net);
+}
+
+static void lan78xx_bh(unsigned long param)
+{
+ struct lan78xx_net *dev = (struct lan78xx_net *)param;
+ struct sk_buff *skb;
+ struct skb_data *entry;
+
+ while ((skb = skb_dequeue(&dev->done))) {
+ entry = (struct skb_data *)(skb->cb);
+ switch (entry->state) {
+ case rx_done:
+ entry->state = rx_cleanup;
+ rx_process(dev, skb);
+ continue;
+ case tx_done:
+ usb_free_urb(entry->urb);
+ dev_kfree_skb(skb);
+ continue;
+ case rx_cleanup:
+ usb_free_urb(entry->urb);
+ dev_kfree_skb(skb);
+ continue;
+ default:
+ netdev_dbg(dev->net, "skb state %d\n", entry->state);
+ return;
+ }
+ }
+
+ if (netif_device_present(dev->net) && netif_running(dev->net)) {
+ if (!skb_queue_empty(&dev->txq_pend))
+ lan78xx_tx_bh(dev);
+
+ if (!timer_pending(&dev->delay) &&
+ !test_bit(EVENT_RX_HALT, &dev->flags))
+ lan78xx_rx_bh(dev);
+ }
+}
+
+static void lan78xx_delayedwork(struct work_struct *work)
+{
+ int status;
+ struct lan78xx_net *dev;
+
+ dev = container_of(work, struct lan78xx_net, wq.work);
+
+ if (test_bit(EVENT_TX_HALT, &dev->flags)) {
+ unlink_urbs(dev, &dev->txq);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto fail_pipe;
+ status = usb_clear_halt(dev->udev, dev->pipe_out);
+ usb_autopm_put_interface(dev->intf);
+ if (status < 0 &&
+ status != -EPIPE &&
+ status != -ESHUTDOWN) {
+ if (netif_msg_tx_err(dev))
+fail_pipe:
+ netdev_err(dev->net,
+ "can't clear tx halt, status %d\n",
+ status);
+ } else {
+ clear_bit(EVENT_TX_HALT, &dev->flags);
+ if (status != -ESHUTDOWN)
+ netif_wake_queue(dev->net);
+ }
+ }
+ if (test_bit(EVENT_RX_HALT, &dev->flags)) {
+ unlink_urbs(dev, &dev->rxq);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto fail_halt;
+ status = usb_clear_halt(dev->udev, dev->pipe_in);
+ usb_autopm_put_interface(dev->intf);
+ if (status < 0 &&
+ status != -EPIPE &&
+ status != -ESHUTDOWN) {
+ if (netif_msg_rx_err(dev))
+fail_halt:
+ netdev_err(dev->net,
+ "can't clear rx halt, status %d\n",
+ status);
+ } else {
+ clear_bit(EVENT_RX_HALT, &dev->flags);
+ tasklet_schedule(&dev->bh);
+ }
+ }
+
+ if (test_bit(EVENT_LINK_RESET, &dev->flags)) {
+ int ret = 0;
+
+ clear_bit(EVENT_LINK_RESET, &dev->flags);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto skip_reset;
+ if (lan78xx_link_reset(dev) < 0) {
+ usb_autopm_put_interface(dev->intf);
+skip_reset:
+ netdev_info(dev->net, "link reset failed (%d)\n",
+ ret);
+ } else {
+ usb_autopm_put_interface(dev->intf);
+ }
+ }
+}
+
+static void intr_complete(struct urb *urb)
+{
+ struct lan78xx_net *dev = urb->context;
+ int status = urb->status;
+
+ switch (status) {
+ /* success */
+ case 0:
+ lan78xx_status(dev, urb);
+ break;
+
+ /* software-driven interface shutdown */
+ case -ENOENT: /* urb killed */
+ case -ESHUTDOWN: /* hardware gone */
+ netif_dbg(dev, ifdown, dev->net,
+ "intr shutdown, code %d\n", status);
+ return;
+
+ /* NOTE: not throttling like RX/TX, since this endpoint
+ * already polls infrequently
+ */
+ default:
+ netdev_dbg(dev->net, "intr status %d\n", status);
+ break;
+ }
+
+ if (!netif_running(dev->net))
+ return;
+
+ memset(urb->transfer_buffer, 0, urb->transfer_buffer_length);
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status != 0)
+ netif_err(dev, timer, dev->net,
+ "intr resubmit --> %d\n", status);
+}
+
+static void lan78xx_disconnect(struct usb_interface *intf)
+{
+ struct lan78xx_net *dev;
+ struct usb_device *udev;
+ struct net_device *net;
+
+ dev = usb_get_intfdata(intf);
+ usb_set_intfdata(intf, NULL);
+ if (!dev)
+ return;
+
+ udev = interface_to_usbdev(intf);
+
+ net = dev->net;
+ unregister_netdev(net);
+
+ cancel_delayed_work_sync(&dev->wq);
+
+ usb_scuttle_anchored_urbs(&dev->deferred);
+
+ lan78xx_unbind(dev, intf);
+
+ usb_kill_urb(dev->urb_intr);
+ usb_free_urb(dev->urb_intr);
+
+ free_netdev(net);
+ usb_put_dev(udev);
+}
+
+void lan78xx_tx_timeout(struct net_device *net)
+{
+ struct lan78xx_net *dev = netdev_priv(net);
+
+ unlink_urbs(dev, &dev->txq);
+ tasklet_schedule(&dev->bh);
+}
+
+static const struct net_device_ops lan78xx_netdev_ops = {
+ .ndo_open = lan78xx_open,
+ .ndo_stop = lan78xx_stop,
+ .ndo_start_xmit = lan78xx_start_xmit,
+ .ndo_tx_timeout = lan78xx_tx_timeout,
+ .ndo_change_mtu = lan78xx_change_mtu,
+ .ndo_set_mac_address = lan78xx_set_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = lan78xx_ioctl,
+ .ndo_set_rx_mode = lan78xx_set_multicast,
+ .ndo_set_features = lan78xx_set_features,
+ .ndo_vlan_rx_add_vid = lan78xx_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = lan78xx_vlan_rx_kill_vid,
+};
+
+static int lan78xx_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct lan78xx_net *dev;
+ struct net_device *netdev;
+ struct usb_device *udev;
+ int ret;
+ unsigned maxp;
+ unsigned period;
+ u8 *buf = NULL;
+
+ udev = interface_to_usbdev(intf);
+ udev = usb_get_dev(udev);
+
+ ret = -ENOMEM;
+ netdev = alloc_etherdev(sizeof(struct lan78xx_net));
+ if (!netdev) {
+ dev_err(&intf->dev, "Error: OOM\n");
+ goto out1;
+ }
+
+ /* netdev_printk() needs this */
+ SET_NETDEV_DEV(netdev, &intf->dev);
+
+ dev = netdev_priv(netdev);
+ dev->udev = udev;
+ dev->intf = intf;
+ dev->net = netdev;
+ dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
+ | NETIF_MSG_PROBE | NETIF_MSG_LINK);
+
+ skb_queue_head_init(&dev->rxq);
+ skb_queue_head_init(&dev->txq);
+ skb_queue_head_init(&dev->done);
+ skb_queue_head_init(&dev->rxq_pause);
+ skb_queue_head_init(&dev->txq_pend);
+ mutex_init(&dev->phy_mutex);
+
+ tasklet_init(&dev->bh, lan78xx_bh, (unsigned long)dev);
+ INIT_DELAYED_WORK(&dev->wq, lan78xx_delayedwork);
+ init_usb_anchor(&dev->deferred);
+
+ netdev->netdev_ops = &lan78xx_netdev_ops;
+ netdev->watchdog_timeo = TX_TIMEOUT_JIFFIES;
+ netdev->ethtool_ops = &lan78xx_ethtool_ops;
+
+ ret = lan78xx_bind(dev, intf);
+ if (ret < 0)
+ goto out2;
+ strcpy(netdev->name, "eth%d");
+
+ if (netdev->mtu > (dev->hard_mtu - netdev->hard_header_len))
+ netdev->mtu = dev->hard_mtu - netdev->hard_header_len;
+
+ dev->ep_blkin = (intf->cur_altsetting)->endpoint + 0;
+ dev->ep_blkout = (intf->cur_altsetting)->endpoint + 1;
+ dev->ep_intr = (intf->cur_altsetting)->endpoint + 2;
+
+ dev->pipe_in = usb_rcvbulkpipe(udev, BULK_IN_PIPE);
+ dev->pipe_out = usb_sndbulkpipe(udev, BULK_OUT_PIPE);
+
+ dev->pipe_intr = usb_rcvintpipe(dev->udev,
+ dev->ep_intr->desc.bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK);
+ period = dev->ep_intr->desc.bInterval;
+
+ maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0);
+ buf = kmalloc(maxp, GFP_KERNEL);
+ if (buf) {
+ dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb_intr) {
+ kfree(buf);
+ goto out3;
+ } else {
+ usb_fill_int_urb(dev->urb_intr, dev->udev,
+ dev->pipe_intr, buf, maxp,
+ intr_complete, dev, period);
+ }
+ }
+
+ dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1);
+
+ /* driver requires remote-wakeup capability during autosuspend. */
+ intf->needs_remote_wakeup = 1;
+
+ ret = register_netdev(netdev);
+ if (ret != 0) {
+ netif_err(dev, probe, netdev, "couldn't register the device\n");
+ goto out2;
+ }
+
+ usb_set_intfdata(intf, dev);
+
+ ret = device_set_wakeup_enable(&udev->dev, true);
+
+ /* Default delay of 2sec has more overhead than advantage.
+ * Set to 10sec as default.
+ */
+ pm_runtime_set_autosuspend_delay(&udev->dev,
+ DEFAULT_AUTOSUSPEND_DELAY);
+
+ return 0;
+
+out3:
+ lan78xx_unbind(dev, intf);
+out2:
+ free_netdev(netdev);
+out1:
+ usb_put_dev(udev);
+
+ return ret;
+}
+
+static u16 lan78xx_wakeframe_crc16(const u8 *buf, int len)
+{
+ const u16 crc16poly = 0x8005;
+ int i;
+ u16 bit, crc, msb;
+ u8 data;
+
+ crc = 0xFFFF;
+ for (i = 0; i < len; i++) {
+ data = *buf++;
+ for (bit = 0; bit < 8; bit++) {
+ msb = crc >> 15;
+ crc <<= 1;
+
+ if (msb ^ (u16)(data & 1)) {
+ crc ^= crc16poly;
+ crc |= (u16)0x0001U;
+ }
+ data >>= 1;
+ }
+ }
+
+ return crc;
+}
+
+static int lan78xx_set_suspend(struct lan78xx_net *dev, u32 wol)
+{
+ u32 buf;
+ int ret;
+ int mask_index;
+ u16 crc;
+ u32 temp_wucsr;
+ u32 temp_pmt_ctl;
+ const u8 ipv4_multicast[3] = { 0x01, 0x00, 0x5E };
+ const u8 ipv6_multicast[3] = { 0x33, 0x33 };
+ const u8 arp_type[2] = { 0x08, 0x06 };
+
+ ret = lan78xx_read_reg(dev, MAC_TX, &buf);
+ buf &= ~MAC_TX_TXEN_;
+ ret = lan78xx_write_reg(dev, MAC_TX, buf);
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf &= ~MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ ret = lan78xx_write_reg(dev, WUCSR, 0);
+ ret = lan78xx_write_reg(dev, WUCSR2, 0);
+ ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL);
+
+ temp_wucsr = 0;
+
+ temp_pmt_ctl = 0;
+ ret = lan78xx_read_reg(dev, PMT_CTL, &temp_pmt_ctl);
+ temp_pmt_ctl &= ~PMT_CTL_RES_CLR_WKP_EN_;
+ temp_pmt_ctl |= PMT_CTL_RES_CLR_WKP_STS_;
+
+ for (mask_index = 0; mask_index < NUM_OF_WUF_CFG; mask_index++)
+ ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), 0);
+
+ mask_index = 0;
+ if (wol & WAKE_PHY) {
+ temp_pmt_ctl |= PMT_CTL_PHY_WAKE_EN_;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+ if (wol & WAKE_MAGIC) {
+ temp_wucsr |= WUCSR_MPEN_;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_3_;
+ }
+ if (wol & WAKE_BCAST) {
+ temp_wucsr |= WUCSR_BCST_EN_;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+ if (wol & WAKE_MCAST) {
+ temp_wucsr |= WUCSR_WAKE_EN_;
+
+ /* set WUF_CFG & WUF_MASK for IPv4 Multicast */
+ crc = lan78xx_wakeframe_crc16(ipv4_multicast, 3);
+ ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),
+ WUF_CFGX_EN_ |
+ WUF_CFGX_TYPE_MCAST_ |
+ (0 << WUF_CFGX_OFFSET_SHIFT_) |
+ (crc & WUF_CFGX_CRC16_MASK_));
+
+ ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 7);
+ ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0);
+ mask_index++;
+
+ /* for IPv6 Multicast */
+ crc = lan78xx_wakeframe_crc16(ipv6_multicast, 2);
+ ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),
+ WUF_CFGX_EN_ |
+ WUF_CFGX_TYPE_MCAST_ |
+ (0 << WUF_CFGX_OFFSET_SHIFT_) |
+ (crc & WUF_CFGX_CRC16_MASK_));
+
+ ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 3);
+ ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0);
+ mask_index++;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+ if (wol & WAKE_UCAST) {
+ temp_wucsr |= WUCSR_PFDA_EN_;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+ if (wol & WAKE_ARP) {
+ temp_wucsr |= WUCSR_WAKE_EN_;
+
+ /* set WUF_CFG & WUF_MASK
+ * for packettype (offset 12,13) = ARP (0x0806)
+ */
+ crc = lan78xx_wakeframe_crc16(arp_type, 2);
+ ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),
+ WUF_CFGX_EN_ |
+ WUF_CFGX_TYPE_ALL_ |
+ (0 << WUF_CFGX_OFFSET_SHIFT_) |
+ (crc & WUF_CFGX_CRC16_MASK_));
+
+ ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 0x3000);
+ ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0);
+ ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0);
+ mask_index++;
+
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+
+ ret = lan78xx_write_reg(dev, WUCSR, temp_wucsr);
+
+ /* when multiple WOL bits are set */
+ if (hweight_long((unsigned long)wol) > 1) {
+ temp_pmt_ctl |= PMT_CTL_WOL_EN_;
+ temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_;
+ temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_;
+ }
+ ret = lan78xx_write_reg(dev, PMT_CTL, temp_pmt_ctl);
+
+ /* clear WUPS */
+ ret = lan78xx_read_reg(dev, PMT_CTL, &buf);
+ buf |= PMT_CTL_WUPS_MASK_;
+ ret = lan78xx_write_reg(dev, PMT_CTL, buf);
+
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf |= MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ return 0;
+}
+
+int lan78xx_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct lan78xx_net *dev = usb_get_intfdata(intf);
+ struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
+ u32 buf;
+ int ret;
+ int event;
+
+ event = message.event;
+
+ if (!dev->suspend_count++) {
+ spin_lock_irq(&dev->txq.lock);
+ /* don't autosuspend while transmitting */
+ if ((skb_queue_len(&dev->txq) ||
+ skb_queue_len(&dev->txq_pend)) &&
+ PMSG_IS_AUTO(message)) {
+ spin_unlock_irq(&dev->txq.lock);
+ ret = -EBUSY;
+ goto out;
+ } else {
+ set_bit(EVENT_DEV_ASLEEP, &dev->flags);
+ spin_unlock_irq(&dev->txq.lock);
+ }
+
+ /* stop TX & RX */
+ ret = lan78xx_read_reg(dev, MAC_TX, &buf);
+ buf &= ~MAC_TX_TXEN_;
+ ret = lan78xx_write_reg(dev, MAC_TX, buf);
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf &= ~MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ /* empty out the rx and queues */
+ netif_device_detach(dev->net);
+ lan78xx_terminate_urbs(dev);
+ usb_kill_urb(dev->urb_intr);
+
+ /* reattach */
+ netif_device_attach(dev->net);
+ }
+
+ if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) {
+ if (PMSG_IS_AUTO(message)) {
+ /* auto suspend (selective suspend) */
+ ret = lan78xx_read_reg(dev, MAC_TX, &buf);
+ buf &= ~MAC_TX_TXEN_;
+ ret = lan78xx_write_reg(dev, MAC_TX, buf);
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf &= ~MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+
+ ret = lan78xx_write_reg(dev, WUCSR, 0);
+ ret = lan78xx_write_reg(dev, WUCSR2, 0);
+ ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL);
+
+ /* set goodframe wakeup */
+ ret = lan78xx_read_reg(dev, WUCSR, &buf);
+
+ buf |= WUCSR_RFE_WAKE_EN_;
+ buf |= WUCSR_STORE_WAKE_;
+
+ ret = lan78xx_write_reg(dev, WUCSR, buf);
+
+ ret = lan78xx_read_reg(dev, PMT_CTL, &buf);
+
+ buf &= ~PMT_CTL_RES_CLR_WKP_EN_;
+ buf |= PMT_CTL_RES_CLR_WKP_STS_;
+
+ buf |= PMT_CTL_PHY_WAKE_EN_;
+ buf |= PMT_CTL_WOL_EN_;
+ buf &= ~PMT_CTL_SUS_MODE_MASK_;
+ buf |= PMT_CTL_SUS_MODE_3_;
+
+ ret = lan78xx_write_reg(dev, PMT_CTL, buf);
+
+ ret = lan78xx_read_reg(dev, PMT_CTL, &buf);
+
+ buf |= PMT_CTL_WUPS_MASK_;
+
+ ret = lan78xx_write_reg(dev, PMT_CTL, buf);
+
+ ret = lan78xx_read_reg(dev, MAC_RX, &buf);
+ buf |= MAC_RX_RXEN_;
+ ret = lan78xx_write_reg(dev, MAC_RX, buf);
+ } else {
+ lan78xx_set_suspend(dev, pdata->wol);
+ }
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int lan78xx_resume(struct usb_interface *intf)
+{
+ struct lan78xx_net *dev = usb_get_intfdata(intf);
+ struct sk_buff *skb;
+ struct urb *res;
+ int ret;
+ u32 buf;
+
+ if (!--dev->suspend_count) {
+ /* resume interrupt URBs */
+ if (dev->urb_intr && test_bit(EVENT_DEV_OPEN, &dev->flags))
+ usb_submit_urb(dev->urb_intr, GFP_NOIO);
+
+ spin_lock_irq(&dev->txq.lock);
+ while ((res = usb_get_from_anchor(&dev->deferred))) {
+ skb = (struct sk_buff *)res->context;
+ ret = usb_submit_urb(res, GFP_ATOMIC);
+ if (ret < 0) {
+ dev_kfree_skb_any(skb);
+ usb_free_urb(res);
+ usb_autopm_put_interface_async(dev->intf);
+ } else {
+ dev->net->trans_start = jiffies;
+ lan78xx_queue_skb(&dev->txq, skb, tx_start);
+ }
+ }
+
+ clear_bit(EVENT_DEV_ASLEEP, &dev->flags);
+ spin_unlock_irq(&dev->txq.lock);
+
+ if (test_bit(EVENT_DEV_OPEN, &dev->flags)) {
+ if (!(skb_queue_len(&dev->txq) >= dev->tx_qlen))
+ netif_start_queue(dev->net);
+ tasklet_schedule(&dev->bh);
+ }
+ }
+
+ ret = lan78xx_write_reg(dev, WUCSR2, 0);
+ ret = lan78xx_write_reg(dev, WUCSR, 0);
+ ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL);
+
+ ret = lan78xx_write_reg(dev, WUCSR2, WUCSR2_NS_RCD_ |
+ WUCSR2_ARP_RCD_ |
+ WUCSR2_IPV6_TCPSYN_RCD_ |
+ WUCSR2_IPV4_TCPSYN_RCD_);
+
+ ret = lan78xx_write_reg(dev, WUCSR, WUCSR_EEE_TX_WAKE_ |
+ WUCSR_EEE_RX_WAKE_ |
+ WUCSR_PFDA_FR_ |
+ WUCSR_RFE_WAKE_FR_ |
+ WUCSR_WUFR_ |
+ WUCSR_MPR_ |
+ WUCSR_BCST_FR_);
+
+ ret = lan78xx_read_reg(dev, MAC_TX, &buf);
+ buf |= MAC_TX_TXEN_;
+ ret = lan78xx_write_reg(dev, MAC_TX, buf);
+
+ return 0;
+}
+
+int lan78xx_reset_resume(struct usb_interface *intf)
+{
+ struct lan78xx_net *dev = usb_get_intfdata(intf);
+
+ lan78xx_reset(dev);
+
+ lan78xx_phy_init(dev);
+
+ return lan78xx_resume(intf);
+}
+
+static const struct usb_device_id products[] = {
+ {
+ /* LAN7800 USB Gigabit Ethernet Device */
+ USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7800_USB_PRODUCT_ID),
+ },
+ {
+ /* LAN7850 USB Gigabit Ethernet Device */
+ USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7850_USB_PRODUCT_ID),
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver lan78xx_driver = {
+ .name = DRIVER_NAME,
+ .id_table = products,
+ .probe = lan78xx_probe,
+ .disconnect = lan78xx_disconnect,
+ .suspend = lan78xx_suspend,
+ .resume = lan78xx_resume,
+ .reset_resume = lan78xx_reset_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(lan78xx_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/lan78xx.h b/drivers/net/usb/lan78xx.h
new file mode 100644
index 0000000..a93fb65
--- /dev/null
+++ b/drivers/net/usb/lan78xx.h
@@ -0,0 +1,876 @@
+/*
+ * Copyright (C) 2015 Microchip Technology
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _LAN78XX_H
+#define _LAN78XX_H
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
+#define USB_VENDOR_REQUEST_GET_STATS 0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_EEE_START_TX_LPI_INT BIT(26)
+#define INT_ENP_EEE_STOP_TX_LPI_INT BIT(25)
+#define INT_ENP_EEE_RX_LPI_INT BIT(24)
+#define INT_ENP_RDFO_INT BIT(22)
+#define INT_ENP_TXE_INT BIT(21)
+#define INT_ENP_TX_DIS_INT BIT(19)
+#define INT_ENP_RX_DIS_INT BIT(18)
+#define INT_ENP_PHY_INT BIT(17)
+#define INT_ENP_DP_INT BIT(16)
+#define INT_ENP_MAC_ERR_INT BIT(15)
+#define INT_ENP_TDFU_INT BIT(14)
+#define INT_ENP_TDFO_INT BIT(13)
+#define INT_ENP_UTX_FP_INT BIT(12)
+
+#define TX_PKT_ALIGNMENT 4
+#define RX_PKT_ALIGNMENT 4
+
+/* Tx Command A */
+#define TX_CMD_A_IGE_ (0x20000000)
+#define TX_CMD_A_ICE_ (0x10000000)
+#define TX_CMD_A_LSO_ (0x08000000)
+#define TX_CMD_A_IPE_ (0x04000000)
+#define TX_CMD_A_TPE_ (0x02000000)
+#define TX_CMD_A_IVTG_ (0x01000000)
+#define TX_CMD_A_RVTG_ (0x00800000)
+#define TX_CMD_A_FCS_ (0x00400000)
+#define TX_CMD_A_LEN_MASK_ (0x000FFFFF)
+
+/* Tx Command B */
+#define TX_CMD_B_MSS_SHIFT_ (16)
+#define TX_CMD_B_MSS_MASK_ (0x3FFF0000)
+#define TX_CMD_B_MSS_MIN_ ((unsigned short)8)
+#define TX_CMD_B_VTAG_MASK_ (0x0000FFFF)
+#define TX_CMD_B_VTAG_PRI_MASK_ (0x0000E000)
+#define TX_CMD_B_VTAG_CFI_MASK_ (0x00001000)
+#define TX_CMD_B_VTAG_VID_MASK_ (0x00000FFF)
+
+/* Rx Command A */
+#define RX_CMD_A_ICE_ (0x80000000)
+#define RX_CMD_A_TCE_ (0x40000000)
+#define RX_CMD_A_CSE_MASK_ (0xC0000000)
+#define RX_CMD_A_IPV_ (0x20000000)
+#define RX_CMD_A_PID_MASK_ (0x18000000)
+#define RX_CMD_A_PID_NONE_IP_ (0x00000000)
+#define RX_CMD_A_PID_TCP_IP_ (0x08000000)
+#define RX_CMD_A_PID_UDP_IP_ (0x10000000)
+#define RX_CMD_A_PID_IP_ (0x18000000)
+#define RX_CMD_A_PFF_ (0x04000000)
+#define RX_CMD_A_BAM_ (0x02000000)
+#define RX_CMD_A_MAM_ (0x01000000)
+#define RX_CMD_A_FVTG_ (0x00800000)
+#define RX_CMD_A_RED_ (0x00400000)
+#define RX_CMD_A_RX_ERRS_MASK_ (0xC03F0000)
+#define RX_CMD_A_RWT_ (0x00200000)
+#define RX_CMD_A_RUNT_ (0x00100000)
+#define RX_CMD_A_LONG_ (0x00080000)
+#define RX_CMD_A_RXE_ (0x00040000)
+#define RX_CMD_A_DRB_ (0x00020000)
+#define RX_CMD_A_FCS_ (0x00010000)
+#define RX_CMD_A_UAM_ (0x00008000)
+#define RX_CMD_A_ICSM_ (0x00004000)
+#define RX_CMD_A_LEN_MASK_ (0x00003FFF)
+
+/* Rx Command B */
+#define RX_CMD_B_CSUM_SHIFT_ (16)
+#define RX_CMD_B_CSUM_MASK_ (0xFFFF0000)
+#define RX_CMD_B_VTAG_MASK_ (0x0000FFFF)
+#define RX_CMD_B_VTAG_PRI_MASK_ (0x0000E000)
+#define RX_CMD_B_VTAG_CFI_MASK_ (0x00001000)
+#define RX_CMD_B_VTAG_VID_MASK_ (0x00000FFF)
+
+/* Rx Command C */
+#define RX_CMD_C_WAKE_SHIFT_ (15)
+#define RX_CMD_C_WAKE_ (0x8000)
+#define RX_CMD_C_REF_FAIL_SHIFT_ (14)
+#define RX_CMD_C_REF_FAIL_ (0x4000)
+
+/* SCSRs */
+#define NUMBER_OF_REGS (193)
+
+#define ID_REV (0x00)
+#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000)
+#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF)
+#define ID_REV_CHIP_ID_7800_ (0x7800)
+
+#define FPGA_REV (0x04)
+#define FPGA_REV_MINOR_MASK_ (0x0000FF00)
+#define FPGA_REV_MAJOR_MASK_ (0x000000FF)
+
+#define INT_STS (0x0C)
+#define INT_STS_CLEAR_ALL_ (0xFFFFFFFF)
+#define INT_STS_EEE_TX_LPI_STRT_ (0x04000000)
+#define INT_STS_EEE_TX_LPI_STOP_ (0x02000000)
+#define INT_STS_EEE_RX_LPI_ (0x01000000)
+#define INT_STS_RDFO_ (0x00400000)
+#define INT_STS_TXE_ (0x00200000)
+#define INT_STS_TX_DIS_ (0x00080000)
+#define INT_STS_RX_DIS_ (0x00040000)
+#define INT_STS_PHY_INT_ (0x00020000)
+#define INT_STS_DP_INT_ (0x00010000)
+#define INT_STS_MAC_ERR_ (0x00008000)
+#define INT_STS_TDFU_ (0x00004000)
+#define INT_STS_TDFO_ (0x00002000)
+#define INT_STS_UFX_FP_ (0x00001000)
+#define INT_STS_GPIO_MASK_ (0x00000FFF)
+#define INT_STS_GPIO11_ (0x00000800)
+#define INT_STS_GPIO10_ (0x00000400)
+#define INT_STS_GPIO9_ (0x00000200)
+#define INT_STS_GPIO8_ (0x00000100)
+#define INT_STS_GPIO7_ (0x00000080)
+#define INT_STS_GPIO6_ (0x00000040)
+#define INT_STS_GPIO5_ (0x00000020)
+#define INT_STS_GPIO4_ (0x00000010)
+#define INT_STS_GPIO3_ (0x00000008)
+#define INT_STS_GPIO2_ (0x00000004)
+#define INT_STS_GPIO1_ (0x00000002)
+#define INT_STS_GPIO0_ (0x00000001)
+
+#define HW_CFG (0x010)
+#define HW_CFG_CLK125_EN_ (0x02000000)
+#define HW_CFG_REFCLK25_EN_ (0x01000000)
+#define HW_CFG_LED3_EN_ (0x00800000)
+#define HW_CFG_LED2_EN_ (0x00400000)
+#define HW_CFG_LED1_EN_ (0x00200000)
+#define HW_CFG_LED0_EN_ (0x00100000)
+#define HW_CFG_EEE_PHY_LUSU_ (0x00020000)
+#define HW_CFG_EEE_TSU_ (0x00010000)
+#define HW_CFG_NETDET_STS_ (0x00008000)
+#define HW_CFG_NETDET_EN_ (0x00004000)
+#define HW_CFG_EEM_ (0x00002000)
+#define HW_CFG_RST_PROTECT_ (0x00001000)
+#define HW_CFG_CONNECT_BUF_ (0x00000400)
+#define HW_CFG_CONNECT_EN_ (0x00000200)
+#define HW_CFG_CONNECT_POL_ (0x00000100)
+#define HW_CFG_SUSPEND_N_SEL_MASK_ (0x000000C0)
+#define HW_CFG_SUSPEND_N_SEL_2 (0x00000000)
+#define HW_CFG_SUSPEND_N_SEL_12N (0x00000040)
+#define HW_CFG_SUSPEND_N_SEL_012N (0x00000080)
+#define HW_CFG_SUSPEND_N_SEL_0123N (0x000000C0)
+#define HW_CFG_SUSPEND_N_POL_ (0x00000020)
+#define HW_CFG_MEF_ (0x00000010)
+#define HW_CFG_ETC_ (0x00000008)
+#define HW_CFG_LRST_ (0x00000002)
+#define HW_CFG_SRST_ (0x00000001)
+
+#define PMT_CTL (0x014)
+#define PMT_CTL_EEE_WAKEUP_EN_ (0x00002000)
+#define PMT_CTL_EEE_WUPS_ (0x00001000)
+#define PMT_CTL_MAC_SRST_ (0x00000800)
+#define PMT_CTL_PHY_PWRUP_ (0x00000400)
+#define PMT_CTL_RES_CLR_WKP_MASK_ (0x00000300)
+#define PMT_CTL_RES_CLR_WKP_STS_ (0x00000200)
+#define PMT_CTL_RES_CLR_WKP_EN_ (0x00000100)
+#define PMT_CTL_READY_ (0x00000080)
+#define PMT_CTL_SUS_MODE_MASK_ (0x00000060)
+#define PMT_CTL_SUS_MODE_0_ (0x00000000)
+#define PMT_CTL_SUS_MODE_1_ (0x00000020)
+#define PMT_CTL_SUS_MODE_2_ (0x00000040)
+#define PMT_CTL_SUS_MODE_3_ (0x00000060)
+#define PMT_CTL_PHY_RST_ (0x00000010)
+#define PMT_CTL_WOL_EN_ (0x00000008)
+#define PMT_CTL_PHY_WAKE_EN_ (0x00000004)
+#define PMT_CTL_WUPS_MASK_ (0x00000003)
+#define PMT_CTL_WUPS_MLT_ (0x00000003)
+#define PMT_CTL_WUPS_MAC_ (0x00000002)
+#define PMT_CTL_WUPS_PHY_ (0x00000001)
+
+#define GPIO_CFG0 (0x018)
+#define GPIO_CFG0_GPIOEN_MASK_ (0x0000F000)
+#define GPIO_CFG0_GPIOEN3_ (0x00008000)
+#define GPIO_CFG0_GPIOEN2_ (0x00004000)
+#define GPIO_CFG0_GPIOEN1_ (0x00002000)
+#define GPIO_CFG0_GPIOEN0_ (0x00001000)
+#define GPIO_CFG0_GPIOBUF_MASK_ (0x00000F00)
+#define GPIO_CFG0_GPIOBUF3_ (0x00000800)
+#define GPIO_CFG0_GPIOBUF2_ (0x00000400)
+#define GPIO_CFG0_GPIOBUF1_ (0x00000200)
+#define GPIO_CFG0_GPIOBUF0_ (0x00000100)
+#define GPIO_CFG0_GPIODIR_MASK_ (0x000000F0)
+#define GPIO_CFG0_GPIODIR3_ (0x00000080)
+#define GPIO_CFG0_GPIODIR2_ (0x00000040)
+#define GPIO_CFG0_GPIODIR1_ (0x00000020)
+#define GPIO_CFG0_GPIODIR0_ (0x00000010)
+#define GPIO_CFG0_GPIOD_MASK_ (0x0000000F)
+#define GPIO_CFG0_GPIOD3_ (0x00000008)
+#define GPIO_CFG0_GPIOD2_ (0x00000004)
+#define GPIO_CFG0_GPIOD1_ (0x00000002)
+#define GPIO_CFG0_GPIOD0_ (0x00000001)
+
+#define GPIO_CFG1 (0x01C)
+#define GPIO_CFG1_GPIOEN_MASK_ (0xFF000000)
+#define GPIO_CFG1_GPIOEN11_ (0x80000000)
+#define GPIO_CFG1_GPIOEN10_ (0x40000000)
+#define GPIO_CFG1_GPIOEN9_ (0x20000000)
+#define GPIO_CFG1_GPIOEN8_ (0x10000000)
+#define GPIO_CFG1_GPIOEN7_ (0x08000000)
+#define GPIO_CFG1_GPIOEN6_ (0x04000000)
+#define GPIO_CFG1_GPIOEN5_ (0x02000000)
+#define GPIO_CFG1_GPIOEN4_ (0x01000000)
+#define GPIO_CFG1_GPIOBUF_MASK_ (0x00FF0000)
+#define GPIO_CFG1_GPIOBUF11_ (0x00800000)
+#define GPIO_CFG1_GPIOBUF10_ (0x00400000)
+#define GPIO_CFG1_GPIOBUF9_ (0x00200000)
+#define GPIO_CFG1_GPIOBUF8_ (0x00100000)
+#define GPIO_CFG1_GPIOBUF7_ (0x00080000)
+#define GPIO_CFG1_GPIOBUF6_ (0x00040000)
+#define GPIO_CFG1_GPIOBUF5_ (0x00020000)
+#define GPIO_CFG1_GPIOBUF4_ (0x00010000)
+#define GPIO_CFG1_GPIODIR_MASK_ (0x0000FF00)
+#define GPIO_CFG1_GPIODIR11_ (0x00008000)
+#define GPIO_CFG1_GPIODIR10_ (0x00004000)
+#define GPIO_CFG1_GPIODIR9_ (0x00002000)
+#define GPIO_CFG1_GPIODIR8_ (0x00001000)
+#define GPIO_CFG1_GPIODIR7_ (0x00000800)
+#define GPIO_CFG1_GPIODIR6_ (0x00000400)
+#define GPIO_CFG1_GPIODIR5_ (0x00000200)
+#define GPIO_CFG1_GPIODIR4_ (0x00000100)
+#define GPIO_CFG1_GPIOD_MASK_ (0x000000FF)
+#define GPIO_CFG1_GPIOD11_ (0x00000080)
+#define GPIO_CFG1_GPIOD10_ (0x00000040)
+#define GPIO_CFG1_GPIOD9_ (0x00000020)
+#define GPIO_CFG1_GPIOD8_ (0x00000010)
+#define GPIO_CFG1_GPIOD7_ (0x00000008)
+#define GPIO_CFG1_GPIOD6_ (0x00000004)
+#define GPIO_CFG1_GPIOD6_ (0x00000004)
+#define GPIO_CFG1_GPIOD5_ (0x00000002)
+#define GPIO_CFG1_GPIOD4_ (0x00000001)
+
+#define GPIO_WAKE (0x020)
+#define GPIO_WAKE_GPIOPOL_MASK_ (0x0FFF0000)
+#define GPIO_WAKE_GPIOPOL11_ (0x08000000)
+#define GPIO_WAKE_GPIOPOL10_ (0x04000000)
+#define GPIO_WAKE_GPIOPOL9_ (0x02000000)
+#define GPIO_WAKE_GPIOPOL8_ (0x01000000)
+#define GPIO_WAKE_GPIOPOL7_ (0x00800000)
+#define GPIO_WAKE_GPIOPOL6_ (0x00400000)
+#define GPIO_WAKE_GPIOPOL5_ (0x00200000)
+#define GPIO_WAKE_GPIOPOL4_ (0x00100000)
+#define GPIO_WAKE_GPIOPOL3_ (0x00080000)
+#define GPIO_WAKE_GPIOPOL2_ (0x00040000)
+#define GPIO_WAKE_GPIOPOL1_ (0x00020000)
+#define GPIO_WAKE_GPIOPOL0_ (0x00010000)
+#define GPIO_WAKE_GPIOWK_MASK_ (0x00000FFF)
+#define GPIO_WAKE_GPIOWK11_ (0x00000800)
+#define GPIO_WAKE_GPIOWK10_ (0x00000400)
+#define GPIO_WAKE_GPIOWK9_ (0x00000200)
+#define GPIO_WAKE_GPIOWK8_ (0x00000100)
+#define GPIO_WAKE_GPIOWK7_ (0x00000080)
+#define GPIO_WAKE_GPIOWK6_ (0x00000040)
+#define GPIO_WAKE_GPIOWK5_ (0x00000020)
+#define GPIO_WAKE_GPIOWK4_ (0x00000010)
+#define GPIO_WAKE_GPIOWK3_ (0x00000008)
+#define GPIO_WAKE_GPIOWK2_ (0x00000004)
+#define GPIO_WAKE_GPIOWK1_ (0x00000002)
+#define GPIO_WAKE_GPIOWK0_ (0x00000001)
+
+#define DP_SEL (0x024)
+#define DP_SEL_DPRDY_ (0x80000000)
+#define DP_SEL_RSEL_MASK_ (0x0000000F)
+#define DP_SEL_RSEL_USB_PHY_CSRS_ (0x0000000F)
+#define DP_SEL_RSEL_OTP_64BIT_ (0x00000009)
+#define DP_SEL_RSEL_OTP_8BIT_ (0x00000008)
+#define DP_SEL_RSEL_UTX_BUF_RAM_ (0x00000007)
+#define DP_SEL_RSEL_DESC_RAM_ (0x00000005)
+#define DP_SEL_RSEL_TXFIFO_ (0x00000004)
+#define DP_SEL_RSEL_RXFIFO_ (0x00000003)
+#define DP_SEL_RSEL_LSO_ (0x00000002)
+#define DP_SEL_RSEL_VLAN_DA_ (0x00000001)
+#define DP_SEL_RSEL_URXBUF_ (0x00000000)
+#define DP_SEL_VHF_HASH_LEN (16)
+#define DP_SEL_VHF_VLAN_LEN (128)
+
+#define DP_CMD (0x028)
+#define DP_CMD_WRITE_ (0x00000001)
+#define DP_CMD_READ_ (0x00000000)
+
+#define DP_ADDR (0x02C)
+#define DP_ADDR_MASK_ (0x00003FFF)
+
+#define DP_DATA (0x030)
+
+#define E2P_CMD (0x040)
+#define E2P_CMD_EPC_BUSY_ (0x80000000)
+#define E2P_CMD_EPC_CMD_MASK_ (0x70000000)
+#define E2P_CMD_EPC_CMD_RELOAD_ (0x70000000)
+#define E2P_CMD_EPC_CMD_ERAL_ (0x60000000)
+#define E2P_CMD_EPC_CMD_ERASE_ (0x50000000)
+#define E2P_CMD_EPC_CMD_WRAL_ (0x40000000)
+#define E2P_CMD_EPC_CMD_WRITE_ (0x30000000)
+#define E2P_CMD_EPC_CMD_EWEN_ (0x20000000)
+#define E2P_CMD_EPC_CMD_EWDS_ (0x10000000)
+#define E2P_CMD_EPC_CMD_READ_ (0x00000000)
+#define E2P_CMD_EPC_TIMEOUT_ (0x00000400)
+#define E2P_CMD_EPC_DL_ (0x00000200)
+#define E2P_CMD_EPC_ADDR_MASK_ (0x000001FF)
+
+#define E2P_DATA (0x044)
+#define E2P_DATA_EEPROM_DATA_MASK_ (0x000000FF)
+
+#define BOS_ATTR (0x050)
+#define BOS_ATTR_BLOCK_SIZE_MASK_ (0x000000FF)
+
+#define SS_ATTR (0x054)
+#define SS_ATTR_POLL_INT_MASK_ (0x00FF0000)
+#define SS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00)
+#define SS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF)
+
+#define HS_ATTR (0x058)
+#define HS_ATTR_POLL_INT_MASK_ (0x00FF0000)
+#define HS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00)
+#define HS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF)
+
+#define FS_ATTR (0x05C)
+#define FS_ATTR_POLL_INT_MASK_ (0x00FF0000)
+#define FS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00)
+#define FS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF)
+
+#define STR_ATTR0 (0x060)
+#define STR_ATTR0_CFGSTR_DESC_SIZE_MASK_ (0xFF000000)
+#define STR_ATTR0_SERSTR_DESC_SIZE_MASK_ (0x00FF0000)
+#define STR_ATTR0_PRODSTR_DESC_SIZE_MASK_ (0x0000FF00)
+#define STR_ATTR0_MANUF_DESC_SIZE_MASK_ (0x000000FF)
+
+#define STR_ATTR1 (0x064)
+#define STR_ATTR1_INTSTR_DESC_SIZE_MASK_ (0x000000FF)
+
+#define STR_FLAG_ATTR (0x068)
+#define STR_FLAG_ATTR_PME_FLAGS_MASK_ (0x000000FF)
+
+#define USB_CFG0 (0x080)
+#define USB_CFG_LPM_RESPONSE_ (0x80000000)
+#define USB_CFG_LPM_CAPABILITY_ (0x40000000)
+#define USB_CFG_LPM_ENBL_SLPM_ (0x20000000)
+#define USB_CFG_HIRD_THR_MASK_ (0x1F000000)
+#define USB_CFG_HIRD_THR_960_ (0x1C000000)
+#define USB_CFG_HIRD_THR_885_ (0x1B000000)
+#define USB_CFG_HIRD_THR_810_ (0x1A000000)
+#define USB_CFG_HIRD_THR_735_ (0x19000000)
+#define USB_CFG_HIRD_THR_660_ (0x18000000)
+#define USB_CFG_HIRD_THR_585_ (0x17000000)
+#define USB_CFG_HIRD_THR_510_ (0x16000000)
+#define USB_CFG_HIRD_THR_435_ (0x15000000)
+#define USB_CFG_HIRD_THR_360_ (0x14000000)
+#define USB_CFG_HIRD_THR_285_ (0x13000000)
+#define USB_CFG_HIRD_THR_210_ (0x12000000)
+#define USB_CFG_HIRD_THR_135_ (0x11000000)
+#define USB_CFG_HIRD_THR_60_ (0x10000000)
+#define USB_CFG_MAX_BURST_BI_MASK_ (0x00F00000)
+#define USB_CFG_MAX_BURST_BO_MASK_ (0x000F0000)
+#define USB_CFG_MAX_DEV_SPEED_MASK_ (0x0000E000)
+#define USB_CFG_MAX_DEV_SPEED_SS_ (0x00008000)
+#define USB_CFG_MAX_DEV_SPEED_HS_ (0x00000000)
+#define USB_CFG_MAX_DEV_SPEED_FS_ (0x00002000)
+#define USB_CFG_PHY_BOOST_MASK_ (0x00000180)
+#define USB_CFG_PHY_BOOST_PLUS_12_ (0x00000180)
+#define USB_CFG_PHY_BOOST_PLUS_8_ (0x00000100)
+#define USB_CFG_PHY_BOOST_PLUS_4_ (0x00000080)
+#define USB_CFG_PHY_BOOST_NORMAL_ (0x00000000)
+#define USB_CFG_BIR_ (0x00000040)
+#define USB_CFG_BCE_ (0x00000020)
+#define USB_CFG_PORT_SWAP_ (0x00000010)
+#define USB_CFG_LPM_EN_ (0x00000008)
+#define USB_CFG_RMT_WKP_ (0x00000004)
+#define USB_CFG_PWR_SEL_ (0x00000002)
+#define USB_CFG_STALL_BO_DIS_ (0x00000001)
+
+#define USB_CFG1 (0x084)
+#define USB_CFG1_U1_TIMEOUT_MASK_ (0xFF000000)
+#define USB_CFG1_U2_TIMEOUT_MASK_ (0x00FF0000)
+#define USB_CFG1_HS_TOUT_CAL_MASK_ (0x0000E000)
+#define USB_CFG1_DEV_U2_INIT_EN_ (0x00001000)
+#define USB_CFG1_DEV_U2_EN_ (0x00000800)
+#define USB_CFG1_DEV_U1_INIT_EN_ (0x00000400)
+#define USB_CFG1_DEV_U1_EN_ (0x00000200)
+#define USB_CFG1_LTM_ENABLE_ (0x00000100)
+#define USB_CFG1_FS_TOUT_CAL_MASK_ (0x00000070)
+#define USB_CFG1_SCALE_DOWN_MASK_ (0x00000003)
+#define USB_CFG1_SCALE_DOWN_MODE3_ (0x00000003)
+#define USB_CFG1_SCALE_DOWN_MODE2_ (0x00000002)
+#define USB_CFG1_SCALE_DOWN_MODE1_ (0x00000001)
+#define USB_CFG1_SCALE_DOWN_MODE0_ (0x00000000)
+
+#define USB_CFG2 (0x088)
+#define USB_CFG2_SS_DETACH_TIME_MASK_ (0xFFFF0000)
+#define USB_CFG2_HS_DETACH_TIME_MASK_ (0x0000FFFF)
+
+#define BURST_CAP (0x090)
+#define BURST_CAP_SIZE_MASK_ (0x000000FF)
+
+#define BULK_IN_DLY (0x094)
+#define BULK_IN_DLY_MASK_ (0x0000FFFF)
+
+#define INT_EP_CTL (0x098)
+#define INT_EP_INTEP_ON_ (0x80000000)
+#define INT_STS_EEE_TX_LPI_STRT_EN_ (0x04000000)
+#define INT_STS_EEE_TX_LPI_STOP_EN_ (0x02000000)
+#define INT_STS_EEE_RX_LPI_EN_ (0x01000000)
+#define INT_EP_RDFO_EN_ (0x00400000)
+#define INT_EP_TXE_EN_ (0x00200000)
+#define INT_EP_TX_DIS_EN_ (0x00080000)
+#define INT_EP_RX_DIS_EN_ (0x00040000)
+#define INT_EP_PHY_INT_EN_ (0x00020000)
+#define INT_EP_DP_INT_EN_ (0x00010000)
+#define INT_EP_MAC_ERR_EN_ (0x00008000)
+#define INT_EP_TDFU_EN_ (0x00004000)
+#define INT_EP_TDFO_EN_ (0x00002000)
+#define INT_EP_UTX_FP_EN_ (0x00001000)
+#define INT_EP_GPIO_EN_MASK_ (0x00000FFF)
+
+#define PIPE_CTL (0x09C)
+#define PIPE_CTL_TXSWING_ (0x00000040)
+#define PIPE_CTL_TXMARGIN_MASK_ (0x00000038)
+#define PIPE_CTL_TXDEEMPHASIS_MASK_ (0x00000006)
+#define PIPE_CTL_ELASTICITYBUFFERMODE_ (0x00000001)
+
+#define U1_LATENCY (0xA0)
+#define U2_LATENCY (0xA4)
+
+#define USB_STATUS (0x0A8)
+#define USB_STATUS_REMOTE_WK_ (0x00100000)
+#define USB_STATUS_FUNC_REMOTE_WK_ (0x00080000)
+#define USB_STATUS_LTM_ENABLE_ (0x00040000)
+#define USB_STATUS_U2_ENABLE_ (0x00020000)
+#define USB_STATUS_U1_ENABLE_ (0x00010000)
+#define USB_STATUS_SET_SEL_ (0x00000020)
+#define USB_STATUS_REMOTE_WK_STS_ (0x00000010)
+#define USB_STATUS_FUNC_REMOTE_WK_STS_ (0x00000008)
+#define USB_STATUS_LTM_ENABLE_STS_ (0x00000004)
+#define USB_STATUS_U2_ENABLE_STS_ (0x00000002)
+#define USB_STATUS_U1_ENABLE_STS_ (0x00000001)
+
+#define USB_CFG3 (0x0AC)
+#define USB_CFG3_EN_U2_LTM_ (0x40000000)
+#define USB_CFG3_BULK_OUT_NUMP_OVR_ (0x20000000)
+#define USB_CFG3_DIS_FAST_U1_EXIT_ (0x10000000)
+#define USB_CFG3_LPM_NYET_THR_ (0x0F000000)
+#define USB_CFG3_RX_DET_2_POL_LFPS_ (0x00800000)
+#define USB_CFG3_LFPS_FILT_ (0x00400000)
+#define USB_CFG3_SKIP_RX_DET_ (0x00200000)
+#define USB_CFG3_DELAY_P1P2P3_ (0x001C0000)
+#define USB_CFG3_DELAY_PHY_PWR_CHG_ (0x00020000)
+#define USB_CFG3_U1U2_EXIT_FR_ (0x00010000)
+#define USB_CFG3_REQ_P1P2P3 (0x00008000)
+#define USB_CFG3_HST_PRT_CMPL_ (0x00004000)
+#define USB_CFG3_DIS_SCRAMB_ (0x00002000)
+#define USB_CFG3_PWR_DN_SCALE_ (0x00001FFF)
+
+#define RFE_CTL (0x0B0)
+#define RFE_CTL_IGMP_COE_ (0x00004000)
+#define RFE_CTL_ICMP_COE_ (0x00002000)
+#define RFE_CTL_TCPUDP_COE_ (0x00001000)
+#define RFE_CTL_IP_COE_ (0x00000800)
+#define RFE_CTL_BCAST_EN_ (0x00000400)
+#define RFE_CTL_MCAST_EN_ (0x00000200)
+#define RFE_CTL_UCAST_EN_ (0x00000100)
+#define RFE_CTL_VLAN_STRIP_ (0x00000080)
+#define RFE_CTL_DISCARD_UNTAGGED_ (0x00000040)
+#define RFE_CTL_VLAN_FILTER_ (0x00000020)
+#define RFE_CTL_SA_FILTER_ (0x00000010)
+#define RFE_CTL_MCAST_HASH_ (0x00000008)
+#define RFE_CTL_DA_HASH_ (0x00000004)
+#define RFE_CTL_DA_PERFECT_ (0x00000002)
+#define RFE_CTL_RST_ (0x00000001)
+
+#define VLAN_TYPE (0x0B4)
+#define VLAN_TYPE_MASK_ (0x0000FFFF)
+
+#define FCT_RX_CTL (0x0C0)
+#define FCT_RX_CTL_EN_ (0x80000000)
+#define FCT_RX_CTL_RST_ (0x40000000)
+#define FCT_RX_CTL_SBF_ (0x02000000)
+#define FCT_RX_CTL_OVFL_ (0x01000000)
+#define FCT_RX_CTL_DROP_ (0x00800000)
+#define FCT_RX_CTL_NOT_EMPTY_ (0x00400000)
+#define FCT_RX_CTL_EMPTY_ (0x00200000)
+#define FCT_RX_CTL_DIS_ (0x00100000)
+#define FCT_RX_CTL_USED_MASK_ (0x0000FFFF)
+
+#define FCT_TX_CTL (0x0C4)
+#define FCT_TX_CTL_EN_ (0x80000000)
+#define FCT_TX_CTL_RST_ (0x40000000)
+#define FCT_TX_CTL_NOT_EMPTY_ (0x00400000)
+#define FCT_TX_CTL_EMPTY_ (0x00200000)
+#define FCT_TX_CTL_DIS_ (0x00100000)
+#define FCT_TX_CTL_USED_MASK_ (0x0000FFFF)
+
+#define FCT_RX_FIFO_END (0x0C8)
+#define FCT_RX_FIFO_END_MASK_ (0x0000007F)
+
+#define FCT_TX_FIFO_END (0x0CC)
+#define FCT_TX_FIFO_END_MASK_ (0x0000003F)
+
+#define FCT_FLOW (0x0D0)
+#define FCT_FLOW_OFF_MASK_ (0x00007F00)
+#define FCT_FLOW_ON_MASK_ (0x0000007F)
+
+#define RX_DP_STOR (0x0D4)
+#define RX_DP_STORE_TOT_RXUSED_MASK_ (0xFFFF0000)
+#define RX_DP_STORE_UTX_RXUSED_MASK_ (0x0000FFFF)
+
+#define TX_DP_STOR (0x0D8)
+#define TX_DP_STORE_TOT_TXUSED_MASK_ (0xFFFF0000)
+#define TX_DP_STORE_URX_TXUSED_MASK_ (0x0000FFFF)
+
+#define LTM_BELT_IDLE0 (0x0E0)
+#define LTM_BELT_IDLE0_IDLE1000_ (0x0FFF0000)
+#define LTM_BELT_IDLE0_IDLE100_ (0x00000FFF)
+
+#define LTM_BELT_IDLE1 (0x0E4)
+#define LTM_BELT_IDLE1_IDLE10_ (0x00000FFF)
+
+#define LTM_BELT_ACT0 (0x0E8)
+#define LTM_BELT_ACT0_ACT1000_ (0x0FFF0000)
+#define LTM_BELT_ACT0_ACT100_ (0x00000FFF)
+
+#define LTM_BELT_ACT1 (0x0EC)
+#define LTM_BELT_ACT1_ACT10_ (0x00000FFF)
+
+#define LTM_INACTIVE0 (0x0F0)
+#define LTM_INACTIVE0_TIMER1000_ (0xFFFF0000)
+#define LTM_INACTIVE0_TIMER100_ (0x0000FFFF)
+
+#define LTM_INACTIVE1 (0x0F4)
+#define LTM_INACTIVE1_TIMER10_ (0x0000FFFF)
+
+#define MAC_CR (0x100)
+#define MAC_CR_EEE_TX_CLK_STOP_EN_ (0x00040000)
+#define MAC_CR_EEE_EN_ (0x00020000)
+#define MAC_CR_EEE_TLAR_EN_ (0x00010000)
+#define MAC_CR_ADP_ (0x00002000)
+#define MAC_CR_AUTO_DUPLEX_ (0x00001000)
+#define MAC_CR_AUTO_SPEED_ (0x00000800)
+#define MAC_CR_LOOPBACK_ (0x00000400)
+#define MAC_CR_BOLMT_MASK_ (0x000000C0)
+#define MAC_CR_FULL_DUPLEX_ (0x00000008)
+#define MAC_CR_SPEED_MASK_ (0x00000006)
+#define MAC_CR_SPEED_1000_ (0x00000004)
+#define MAC_CR_SPEED_100_ (0x00000002)
+#define MAC_CR_SPEED_10_ (0x00000000)
+#define MAC_CR_RST_ (0x00000001)
+
+#define MAC_RX (0x104)
+#define MAC_RX_MAX_SIZE_SHIFT_ (16)
+#define MAC_RX_MAX_SIZE_MASK_ (0x3FFF0000)
+#define MAC_RX_FCS_STRIP_ (0x00000010)
+#define MAC_RX_VLAN_FSE_ (0x00000004)
+#define MAC_RX_RXD_ (0x00000002)
+#define MAC_RX_RXEN_ (0x00000001)
+
+#define MAC_TX (0x108)
+#define MAC_TX_BAD_FCS_ (0x00000004)
+#define MAC_TX_TXD_ (0x00000002)
+#define MAC_TX_TXEN_ (0x00000001)
+
+#define FLOW (0x10C)
+#define FLOW_CR_FORCE_FC_ (0x80000000)
+#define FLOW_CR_TX_FCEN_ (0x40000000)
+#define FLOW_CR_RX_FCEN_ (0x20000000)
+#define FLOW_CR_FPF_ (0x10000000)
+#define FLOW_CR_FCPT_MASK_ (0x0000FFFF)
+
+#define RAND_SEED (0x110)
+#define RAND_SEED_MASK_ (0x0000FFFF)
+
+#define ERR_STS (0x114)
+#define ERR_STS_FERR_ (0x00000100)
+#define ERR_STS_LERR_ (0x00000080)
+#define ERR_STS_RFERR_ (0x00000040)
+#define ERR_STS_ECERR_ (0x00000010)
+#define ERR_STS_ALERR_ (0x00000008)
+#define ERR_STS_URERR_ (0x00000004)
+
+#define RX_ADDRH (0x118)
+#define RX_ADDRH_MASK_ (0x0000FFFF)
+
+#define RX_ADDRL (0x11C)
+#define RX_ADDRL_MASK_ (0xFFFFFFFF)
+
+#define MII_ACC (0x120)
+#define MII_ACC_PHY_ADDR_SHIFT_ (11)
+#define MII_ACC_PHY_ADDR_MASK_ (0x0000F800)
+#define MII_ACC_MIIRINDA_SHIFT_ (6)
+#define MII_ACC_MIIRINDA_MASK_ (0x000007C0)
+#define MII_ACC_MII_READ_ (0x00000000)
+#define MII_ACC_MII_WRITE_ (0x00000002)
+#define MII_ACC_MII_BUSY_ (0x00000001)
+
+#define MII_DATA (0x124)
+#define MII_DATA_MASK_ (0x0000FFFF)
+
+#define MAC_RGMII_ID (0x128)
+#define MAC_RGMII_ID_TXC_DELAY_EN_ (0x00000002)
+#define MAC_RGMII_ID_RXC_DELAY_EN_ (0x00000001)
+
+#define EEE_TX_LPI_REQ_DLY (0x130)
+#define EEE_TX_LPI_REQ_DLY_CNT_MASK_ (0xFFFFFFFF)
+
+#define EEE_TW_TX_SYS (0x134)
+#define EEE_TW_TX_SYS_CNT1G_MASK_ (0xFFFF0000)
+#define EEE_TW_TX_SYS_CNT100M_MASK_ (0x0000FFFF)
+
+#define EEE_TX_LPI_REM_DLY (0x138)
+#define EEE_TX_LPI_REM_DLY_CNT_ (0x00FFFFFF)
+
+#define WUCSR (0x140)
+#define WUCSR_TESTMODE_ (0x80000000)
+#define WUCSR_RFE_WAKE_EN_ (0x00004000)
+#define WUCSR_EEE_TX_WAKE_ (0x00002000)
+#define WUCSR_EEE_TX_WAKE_EN_ (0x00001000)
+#define WUCSR_EEE_RX_WAKE_ (0x00000800)
+#define WUCSR_EEE_RX_WAKE_EN_ (0x00000400)
+#define WUCSR_RFE_WAKE_FR_ (0x00000200)
+#define WUCSR_STORE_WAKE_ (0x00000100)
+#define WUCSR_PFDA_FR_ (0x00000080)
+#define WUCSR_WUFR_ (0x00000040)
+#define WUCSR_MPR_ (0x00000020)
+#define WUCSR_BCST_FR_ (0x00000010)
+#define WUCSR_PFDA_EN_ (0x00000008)
+#define WUCSR_WAKE_EN_ (0x00000004)
+#define WUCSR_MPEN_ (0x00000002)
+#define WUCSR_BCST_EN_ (0x00000001)
+
+#define WK_SRC (0x144)
+#define WK_SRC_GPIOX_INT_WK_SHIFT_ (20)
+#define WK_SRC_GPIOX_INT_WK_MASK_ (0xFFF00000)
+#define WK_SRC_IPV6_TCPSYN_RCD_WK_ (0x00010000)
+#define WK_SRC_IPV4_TCPSYN_RCD_WK_ (0x00008000)
+#define WK_SRC_EEE_TX_WK_ (0x00004000)
+#define WK_SRC_EEE_RX_WK_ (0x00002000)
+#define WK_SRC_GOOD_FR_WK_ (0x00001000)
+#define WK_SRC_PFDA_FR_WK_ (0x00000800)
+#define WK_SRC_MP_FR_WK_ (0x00000400)
+#define WK_SRC_BCAST_FR_WK_ (0x00000200)
+#define WK_SRC_WU_FR_WK_ (0x00000100)
+#define WK_SRC_WUFF_MATCH_MASK_ (0x0000001F)
+
+#define WUF_CFG0 (0x150)
+#define NUM_OF_WUF_CFG (32)
+#define WUF_CFG_BEGIN (WUF_CFG0)
+#define WUF_CFG(index) (WUF_CFG_BEGIN + (4 * (index)))
+#define WUF_CFGX_EN_ (0x80000000)
+#define WUF_CFGX_TYPE_MASK_ (0x03000000)
+#define WUF_CFGX_TYPE_MCAST_ (0x02000000)
+#define WUF_CFGX_TYPE_ALL_ (0x01000000)
+#define WUF_CFGX_TYPE_UCAST_ (0x00000000)
+#define WUF_CFGX_OFFSET_SHIFT_ (16)
+#define WUF_CFGX_OFFSET_MASK_ (0x00FF0000)
+#define WUF_CFGX_CRC16_MASK_ (0x0000FFFF)
+
+#define WUF_MASK0_0 (0x200)
+#define WUF_MASK0_1 (0x204)
+#define WUF_MASK0_2 (0x208)
+#define WUF_MASK0_3 (0x20C)
+#define NUM_OF_WUF_MASK (32)
+#define WUF_MASK0_BEGIN (WUF_MASK0_0)
+#define WUF_MASK1_BEGIN (WUF_MASK0_1)
+#define WUF_MASK2_BEGIN (WUF_MASK0_2)
+#define WUF_MASK3_BEGIN (WUF_MASK0_3)
+#define WUF_MASK0(index) (WUF_MASK0_BEGIN + (0x10 * (index)))
+#define WUF_MASK1(index) (WUF_MASK1_BEGIN + (0x10 * (index)))
+#define WUF_MASK2(index) (WUF_MASK2_BEGIN + (0x10 * (index)))
+#define WUF_MASK3(index) (WUF_MASK3_BEGIN + (0x10 * (index)))
+
+#define MAF_BASE (0x400)
+#define MAF_HIX (0x00)
+#define MAF_LOX (0x04)
+#define NUM_OF_MAF (33)
+#define MAF_HI_BEGIN (MAF_BASE + MAF_HIX)
+#define MAF_LO_BEGIN (MAF_BASE + MAF_LOX)
+#define MAF_HI(index) (MAF_BASE + (8 * (index)) + (MAF_HIX))
+#define MAF_LO(index) (MAF_BASE + (8 * (index)) + (MAF_LOX))
+#define MAF_HI_VALID_ (0x80000000)
+#define MAF_HI_TYPE_MASK_ (0x40000000)
+#define MAF_HI_TYPE_SRC_ (0x40000000)
+#define MAF_HI_TYPE_DST_ (0x00000000)
+#define MAF_HI_ADDR_MASK (0x0000FFFF)
+#define MAF_LO_ADDR_MASK (0xFFFFFFFF)
+
+#define WUCSR2 (0x600)
+#define WUCSR2_CSUM_DISABLE_ (0x80000000)
+#define WUCSR2_NA_SA_SEL_ (0x00000100)
+#define WUCSR2_NS_RCD_ (0x00000080)
+#define WUCSR2_ARP_RCD_ (0x00000040)
+#define WUCSR2_IPV6_TCPSYN_RCD_ (0x00000020)
+#define WUCSR2_IPV4_TCPSYN_RCD_ (0x00000010)
+#define WUCSR2_NS_OFFLOAD_EN_ (0x00000008)
+#define WUCSR2_ARP_OFFLOAD_EN_ (0x00000004)
+#define WUCSR2_IPV6_TCPSYN_WAKE_EN_ (0x00000002)
+#define WUCSR2_IPV4_TCPSYN_WAKE_EN_ (0x00000001)
+
+#define NS1_IPV6_ADDR_DEST0 (0x610)
+#define NS1_IPV6_ADDR_DEST1 (0x614)
+#define NS1_IPV6_ADDR_DEST2 (0x618)
+#define NS1_IPV6_ADDR_DEST3 (0x61C)
+
+#define NS1_IPV6_ADDR_SRC0 (0x620)
+#define NS1_IPV6_ADDR_SRC1 (0x624)
+#define NS1_IPV6_ADDR_SRC2 (0x628)
+#define NS1_IPV6_ADDR_SRC3 (0x62C)
+
+#define NS1_ICMPV6_ADDR0_0 (0x630)
+#define NS1_ICMPV6_ADDR0_1 (0x634)
+#define NS1_ICMPV6_ADDR0_2 (0x638)
+#define NS1_ICMPV6_ADDR0_3 (0x63C)
+
+#define NS1_ICMPV6_ADDR1_0 (0x640)
+#define NS1_ICMPV6_ADDR1_1 (0x644)
+#define NS1_ICMPV6_ADDR1_2 (0x648)
+#define NS1_ICMPV6_ADDR1_3 (0x64C)
+
+#define NS2_IPV6_ADDR_DEST0 (0x650)
+#define NS2_IPV6_ADDR_DEST1 (0x654)
+#define NS2_IPV6_ADDR_DEST2 (0x658)
+#define NS2_IPV6_ADDR_DEST3 (0x65C)
+
+#define NS2_IPV6_ADDR_SRC0 (0x660)
+#define NS2_IPV6_ADDR_SRC1 (0x664)
+#define NS2_IPV6_ADDR_SRC2 (0x668)
+#define NS2_IPV6_ADDR_SRC3 (0x66C)
+
+#define NS2_ICMPV6_ADDR0_0 (0x670)
+#define NS2_ICMPV6_ADDR0_1 (0x674)
+#define NS2_ICMPV6_ADDR0_2 (0x678)
+#define NS2_ICMPV6_ADDR0_3 (0x67C)
+
+#define NS2_ICMPV6_ADDR1_0 (0x680)
+#define NS2_ICMPV6_ADDR1_1 (0x684)
+#define NS2_ICMPV6_ADDR1_2 (0x688)
+#define NS2_ICMPV6_ADDR1_3 (0x68C)
+
+#define SYN_IPV4_ADDR_SRC (0x690)
+#define SYN_IPV4_ADDR_DEST (0x694)
+#define SYN_IPV4_TCP_PORTS (0x698)
+#define SYN_IPV4_TCP_PORTS_IPV4_DEST_PORT_SHIFT_ (16)
+#define SYN_IPV4_TCP_PORTS_IPV4_DEST_PORT_MASK_ (0xFFFF0000)
+#define SYN_IPV4_TCP_PORTS_IPV4_SRC_PORT_MASK_ (0x0000FFFF)
+
+#define SYN_IPV6_ADDR_SRC0 (0x69C)
+#define SYN_IPV6_ADDR_SRC1 (0x6A0)
+#define SYN_IPV6_ADDR_SRC2 (0x6A4)
+#define SYN_IPV6_ADDR_SRC3 (0x6A8)
+
+#define SYN_IPV6_ADDR_DEST0 (0x6AC)
+#define SYN_IPV6_ADDR_DEST1 (0x6B0)
+#define SYN_IPV6_ADDR_DEST2 (0x6B4)
+#define SYN_IPV6_ADDR_DEST3 (0x6B8)
+
+#define SYN_IPV6_TCP_PORTS (0x6BC)
+#define SYN_IPV6_TCP_PORTS_IPV6_DEST_PORT_SHIFT_ (16)
+#define SYN_IPV6_TCP_PORTS_IPV6_DEST_PORT_MASK_ (0xFFFF0000)
+#define SYN_IPV6_TCP_PORTS_IPV6_SRC_PORT_MASK_ (0x0000FFFF)
+
+#define ARP_SPA (0x6C0)
+#define ARP_TPA (0x6C4)
+
+#define PHY_DEV_ID (0x700)
+#define PHY_DEV_ID_REV_SHIFT_ (28)
+#define PHY_DEV_ID_REV_SHIFT_ (28)
+#define PHY_DEV_ID_REV_MASK_ (0xF0000000)
+#define PHY_DEV_ID_MODEL_SHIFT_ (22)
+#define PHY_DEV_ID_MODEL_MASK_ (0x0FC00000)
+#define PHY_DEV_ID_OUI_MASK_ (0x003FFFFF)
+
+#define OTP_BASE_ADDR (0x00001000)
+#define OTP_ADDR_RANGE_ (0x1FF)
+
+#define OTP_PWR_DN (OTP_BASE_ADDR + 4 * 0x00)
+#define OTP_PWR_DN_PWRDN_N_ (0x01)
+
+#define OTP_ADDR1 (OTP_BASE_ADDR + 4 * 0x01)
+#define OTP_ADDR1_15_11 (0x1F)
+
+#define OTP_ADDR2 (OTP_BASE_ADDR + 4 * 0x02)
+#define OTP_ADDR2_10_3 (0xFF)
+
+#define OTP_ADDR3 (OTP_BASE_ADDR + 4 * 0x03)
+#define OTP_ADDR3_2_0 (0x03)
+
+#define OTP_PRGM_DATA (OTP_BASE_ADDR + 4 * 0x04)
+
+#define OTP_PRGM_MODE (OTP_BASE_ADDR + 4 * 0x05)
+#define OTP_PRGM_MODE_BYTE_ (0x01)
+
+#define OTP_RD_DATA (OTP_BASE_ADDR + 4 * 0x06)
+
+#define OTP_FUNC_CMD (OTP_BASE_ADDR + 4 * 0x08)
+#define OTP_FUNC_CMD_RESET_ (0x04)
+#define OTP_FUNC_CMD_PROGRAM_ (0x02)
+#define OTP_FUNC_CMD_READ_ (0x01)
+
+#define OTP_TST_CMD (OTP_BASE_ADDR + 4 * 0x09)
+#define OTP_TST_CMD_TEST_DEC_SEL_ (0x10)
+#define OTP_TST_CMD_PRGVRFY_ (0x08)
+#define OTP_TST_CMD_WRTEST_ (0x04)
+#define OTP_TST_CMD_TESTDEC_ (0x02)
+#define OTP_TST_CMD_BLANKCHECK_ (0x01)
+
+#define OTP_CMD_GO (OTP_BASE_ADDR + 4 * 0x0A)
+#define OTP_CMD_GO_GO_ (0x01)
+
+#define OTP_PASS_FAIL (OTP_BASE_ADDR + 4 * 0x0B)
+#define OTP_PASS_FAIL_PASS_ (0x02)
+#define OTP_PASS_FAIL_FAIL_ (0x01)
+
+#define OTP_STATUS (OTP_BASE_ADDR + 4 * 0x0C)
+#define OTP_STATUS_OTP_LOCK_ (0x10)
+#define OTP_STATUS_WEB_ (0x08)
+#define OTP_STATUS_PGMEN (0x04)
+#define OTP_STATUS_CPUMPEN_ (0x02)
+#define OTP_STATUS_BUSY_ (0x01)
+
+#define OTP_MAX_PRG (OTP_BASE_ADDR + 4 * 0x0D)
+#define OTP_MAX_PRG_MAX_PROG (0x1F)
+
+#define OTP_INTR_STATUS (OTP_BASE_ADDR + 4 * 0x10)
+#define OTP_INTR_STATUS_READY_ (0x01)
+
+#define OTP_INTR_MASK (OTP_BASE_ADDR + 4 * 0x11)
+#define OTP_INTR_MASK_READY_ (0x01)
+
+#define OTP_RSTB_PW1 (OTP_BASE_ADDR + 4 * 0x14)
+#define OTP_RSTB_PW2 (OTP_BASE_ADDR + 4 * 0x15)
+#define OTP_PGM_PW1 (OTP_BASE_ADDR + 4 * 0x18)
+#define OTP_PGM_PW2 (OTP_BASE_ADDR + 4 * 0x19)
+#define OTP_READ_PW1 (OTP_BASE_ADDR + 4 * 0x1C)
+#define OTP_READ_PW2 (OTP_BASE_ADDR + 4 * 0x1D)
+#define OTP_TCRST (OTP_BASE_ADDR + 4 * 0x20)
+#define OTP_RSRD (OTP_BASE_ADDR + 4 * 0x21)
+#define OTP_TREADEN_VAL (OTP_BASE_ADDR + 4 * 0x22)
+#define OTP_TDLES_VAL (OTP_BASE_ADDR + 4 * 0x23)
+#define OTP_TWWL_VAL (OTP_BASE_ADDR + 4 * 0x24)
+#define OTP_TDLEH_VAL (OTP_BASE_ADDR + 4 * 0x25)
+#define OTP_TWPED_VAL (OTP_BASE_ADDR + 4 * 0x26)
+#define OTP_TPES_VAL (OTP_BASE_ADDR + 4 * 0x27)
+#define OTP_TCPS_VAL (OTP_BASE_ADDR + 4 * 0x28)
+#define OTP_TCPH_VAL (OTP_BASE_ADDR + 4 * 0x29)
+#define OTP_TPGMVFY_VAL (OTP_BASE_ADDR + 4 * 0x2A)
+#define OTP_TPEH_VAL (OTP_BASE_ADDR + 4 * 0x2B)
+#define OTP_TPGRST_VAL (OTP_BASE_ADDR + 4 * 0x2C)
+#define OTP_TCLES_VAL (OTP_BASE_ADDR + 4 * 0x2D)
+#define OTP_TCLEH_VAL (OTP_BASE_ADDR + 4 * 0x2E)
+#define OTP_TRDES_VAL (OTP_BASE_ADDR + 4 * 0x2F)
+#define OTP_TBCACC_VAL (OTP_BASE_ADDR + 4 * 0x30)
+#define OTP_TAAC_VAL (OTP_BASE_ADDR + 4 * 0x31)
+#define OTP_TACCT_VAL (OTP_BASE_ADDR + 4 * 0x32)
+#define OTP_TRDEP_VAL (OTP_BASE_ADDR + 4 * 0x38)
+#define OTP_TPGSV_VAL (OTP_BASE_ADDR + 4 * 0x39)
+#define OTP_TPVSR_VAL (OTP_BASE_ADDR + 4 * 0x3A)
+#define OTP_TPVHR_VAL (OTP_BASE_ADDR + 4 * 0x3B)
+#define OTP_TPVSA_VAL (OTP_BASE_ADDR + 4 * 0x3C)
+#endif /* _LAN78XX_H */
diff --git a/drivers/net/usb/lg-vl600.c b/drivers/net/usb/lg-vl600.c
new file mode 100644
index 0000000..5714107
--- /dev/null
+++ b/drivers/net/usb/lg-vl600.c
@@ -0,0 +1,353 @@
+/*
+ * Ethernet interface part of the LG VL600 LTE modem (4G dongle)
+ *
+ * Copyright (C) 2011 Intel Corporation
+ * Author: Andrzej Zaborowski <balrogg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <linux/inetdevice.h>
+#include <linux/module.h>
+
+/*
+ * The device has a CDC ACM port for modem control (it claims to be
+ * CDC ACM anyway) and a CDC Ethernet port for actual network data.
+ * It will however ignore data on both ports that is not encapsulated
+ * in a specific way, any data returned is also encapsulated the same
+ * way. The headers don't seem to follow any popular standard.
+ *
+ * This driver adds and strips these headers from the ethernet frames
+ * sent/received from the CDC Ethernet port. The proprietary header
+ * replaces the standard ethernet header in a packet so only actual
+ * ethernet frames are allowed. The headers allow some form of
+ * multiplexing by using non standard values of the .h_proto field.
+ * Windows/Mac drivers do send a couple of such frames to the device
+ * during initialisation, with protocol set to 0x0906 or 0x0b06 and (what
+ * seems to be) a flag in the .dummy_flags. This doesn't seem necessary
+ * for modem operation but can possibly be used for GPS or other funcitons.
+ */
+
+struct vl600_frame_hdr {
+ __le32 len;
+ __le32 serial;
+ __le32 pkt_cnt;
+ __le32 dummy_flags;
+ __le32 dummy;
+ __le32 magic;
+} __attribute__((packed));
+
+struct vl600_pkt_hdr {
+ __le32 dummy[2];
+ __le32 len;
+ __be16 h_proto;
+} __attribute__((packed));
+
+struct vl600_state {
+ struct sk_buff *current_rx_buf;
+};
+
+static int vl600_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int ret;
+ struct vl600_state *s = kzalloc(sizeof(struct vl600_state), GFP_KERNEL);
+
+ if (!s)
+ return -ENOMEM;
+
+ ret = usbnet_cdc_bind(dev, intf);
+ if (ret) {
+ kfree(s);
+ return ret;
+ }
+
+ dev->driver_priv = s;
+
+ /* ARP packets don't go through, but they're also of no use. The
+ * subnet has only two hosts anyway: us and the gateway / DHCP
+ * server (probably simulated by modem firmware or network operator)
+ * whose address changes everytime we connect to the intarwebz and
+ * who doesn't bother answering ARP requests either. So hardware
+ * addresses have no meaning, the destination and the source of every
+ * packet depend only on whether it is on the IN or OUT endpoint. */
+ dev->net->flags |= IFF_NOARP;
+ /* IPv6 NDP relies on multicast. Enable it by default. */
+ dev->net->flags |= IFF_MULTICAST;
+
+ return ret;
+}
+
+static void vl600_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct vl600_state *s = dev->driver_priv;
+
+ if (s->current_rx_buf)
+ dev_kfree_skb(s->current_rx_buf);
+
+ kfree(s);
+
+ return usbnet_cdc_unbind(dev, intf);
+}
+
+static int vl600_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct vl600_frame_hdr *frame;
+ struct vl600_pkt_hdr *packet;
+ struct ethhdr *ethhdr;
+ int packet_len, count;
+ struct sk_buff *buf = skb;
+ struct sk_buff *clone;
+ struct vl600_state *s = dev->driver_priv;
+
+ /* Frame lengths are generally 4B multiplies but every couple of
+ * hours there's an odd number of bytes sized yet correct frame,
+ * so don't require this. */
+
+ /* Allow a packet (or multiple packets batched together) to be
+ * split across many frames. We don't allow a new batch to
+ * begin in the same frame another one is ending however, and no
+ * leading or trailing pad bytes. */
+ if (s->current_rx_buf) {
+ frame = (struct vl600_frame_hdr *) s->current_rx_buf->data;
+ if (skb->len + s->current_rx_buf->len >
+ le32_to_cpup(&frame->len)) {
+ netif_err(dev, ifup, dev->net, "Fragment too long\n");
+ dev->net->stats.rx_length_errors++;
+ goto error;
+ }
+
+ buf = s->current_rx_buf;
+ memcpy(skb_put(buf, skb->len), skb->data, skb->len);
+ } else if (skb->len < 4) {
+ netif_err(dev, ifup, dev->net, "Frame too short\n");
+ dev->net->stats.rx_length_errors++;
+ goto error;
+ }
+
+ frame = (struct vl600_frame_hdr *) buf->data;
+ /* Yes, check that frame->magic == 0x53544448 (or 0x44544d48),
+ * otherwise we may run out of memory w/a bad packet */
+ if (ntohl(frame->magic) != 0x53544448 &&
+ ntohl(frame->magic) != 0x44544d48)
+ goto error;
+
+ if (buf->len < sizeof(*frame) ||
+ buf->len != le32_to_cpup(&frame->len)) {
+ /* Save this fragment for later assembly */
+ if (s->current_rx_buf)
+ return 0;
+
+ s->current_rx_buf = skb_copy_expand(skb, 0,
+ le32_to_cpup(&frame->len), GFP_ATOMIC);
+ if (!s->current_rx_buf) {
+ netif_err(dev, ifup, dev->net, "Reserving %i bytes "
+ "for packet assembly failed.\n",
+ le32_to_cpup(&frame->len));
+ dev->net->stats.rx_errors++;
+ }
+
+ return 0;
+ }
+
+ count = le32_to_cpup(&frame->pkt_cnt);
+
+ skb_pull(buf, sizeof(*frame));
+
+ while (count--) {
+ if (buf->len < sizeof(*packet)) {
+ netif_err(dev, ifup, dev->net, "Packet too short\n");
+ goto error;
+ }
+
+ packet = (struct vl600_pkt_hdr *) buf->data;
+ packet_len = sizeof(*packet) + le32_to_cpup(&packet->len);
+ if (packet_len > buf->len) {
+ netif_err(dev, ifup, dev->net,
+ "Bad packet length stored in header\n");
+ goto error;
+ }
+
+ /* Packet header is same size as the ethernet header
+ * (sizeof(*packet) == sizeof(*ethhdr)), additionally
+ * the h_proto field is in the same place so we just leave it
+ * alone and fill in the remaining fields.
+ */
+ ethhdr = (struct ethhdr *) skb->data;
+ if (be16_to_cpup(ðhdr->h_proto) == ETH_P_ARP &&
+ buf->len > 0x26) {
+ /* Copy the addresses from packet contents */
+ memcpy(ethhdr->h_source,
+ &buf->data[sizeof(*ethhdr) + 0x8],
+ ETH_ALEN);
+ memcpy(ethhdr->h_dest,
+ &buf->data[sizeof(*ethhdr) + 0x12],
+ ETH_ALEN);
+ } else {
+ eth_zero_addr(ethhdr->h_source);
+ memcpy(ethhdr->h_dest, dev->net->dev_addr, ETH_ALEN);
+
+ /* Inbound IPv6 packets have an IPv4 ethertype (0x800)
+ * for some reason. Peek at the L3 header to check
+ * for IPv6 packets, and set the ethertype to IPv6
+ * (0x86dd) so Linux can understand it.
+ */
+ if ((buf->data[sizeof(*ethhdr)] & 0xf0) == 0x60)
+ ethhdr->h_proto = htons(ETH_P_IPV6);
+ }
+
+ if (count) {
+ /* Not the last packet in this batch */
+ clone = skb_clone(buf, GFP_ATOMIC);
+ if (!clone)
+ goto error;
+
+ skb_trim(clone, packet_len);
+ usbnet_skb_return(dev, clone);
+
+ skb_pull(buf, (packet_len + 3) & ~3);
+ } else {
+ skb_trim(buf, packet_len);
+
+ if (s->current_rx_buf) {
+ usbnet_skb_return(dev, buf);
+ s->current_rx_buf = NULL;
+ return 0;
+ }
+
+ return 1;
+ }
+ }
+
+error:
+ if (s->current_rx_buf) {
+ dev_kfree_skb_any(s->current_rx_buf);
+ s->current_rx_buf = NULL;
+ }
+ dev->net->stats.rx_errors++;
+ return 0;
+}
+
+static struct sk_buff *vl600_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ struct sk_buff *ret;
+ struct vl600_frame_hdr *frame;
+ struct vl600_pkt_hdr *packet;
+ static uint32_t serial = 1;
+ int orig_len = skb->len - sizeof(struct ethhdr);
+ int full_len = (skb->len + sizeof(struct vl600_frame_hdr) + 3) & ~3;
+
+ frame = (struct vl600_frame_hdr *) skb->data;
+ if (skb->len > sizeof(*frame) && skb->len == le32_to_cpup(&frame->len))
+ return skb; /* Already encapsulated? */
+
+ if (skb->len < sizeof(struct ethhdr))
+ /* Drop, device can only deal with ethernet packets */
+ return NULL;
+
+ if (!skb_cloned(skb)) {
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+
+ if (tailroom >= full_len - skb->len - sizeof(*frame) &&
+ headroom >= sizeof(*frame))
+ /* There's enough head and tail room */
+ goto encapsulate;
+
+ if (headroom + tailroom + skb->len >= full_len) {
+ /* There's enough total room, just readjust */
+ skb->data = memmove(skb->head + sizeof(*frame),
+ skb->data, skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ goto encapsulate;
+ }
+ }
+
+ /* Alloc a new skb with the required size */
+ ret = skb_copy_expand(skb, sizeof(struct vl600_frame_hdr), full_len -
+ skb->len - sizeof(struct vl600_frame_hdr), flags);
+ dev_kfree_skb_any(skb);
+ if (!ret)
+ return ret;
+ skb = ret;
+
+encapsulate:
+ /* Packet header is same size as ethernet packet header
+ * (sizeof(*packet) == sizeof(struct ethhdr)), additionally the
+ * h_proto field is in the same place so we just leave it alone and
+ * overwrite the remaining fields.
+ */
+ packet = (struct vl600_pkt_hdr *) skb->data;
+ /* The VL600 wants IPv6 packets to have an IPv4 ethertype
+ * Since this modem only supports IPv4 and IPv6, just set all
+ * frames to 0x0800 (ETH_P_IP)
+ */
+ packet->h_proto = htons(ETH_P_IP);
+ memset(&packet->dummy, 0, sizeof(packet->dummy));
+ packet->len = cpu_to_le32(orig_len);
+
+ frame = (struct vl600_frame_hdr *) skb_push(skb, sizeof(*frame));
+ memset(frame, 0, sizeof(*frame));
+ frame->len = cpu_to_le32(full_len);
+ frame->serial = cpu_to_le32(serial++);
+ frame->pkt_cnt = cpu_to_le32(1);
+
+ if (skb->len < full_len) /* Pad */
+ skb_put(skb, full_len - skb->len);
+
+ return skb;
+}
+
+static const struct driver_info vl600_info = {
+ .description = "LG VL600 modem",
+ .flags = FLAG_RX_ASSEMBLE | FLAG_WWAN,
+ .bind = vl600_bind,
+ .unbind = vl600_unbind,
+ .status = usbnet_cdc_status,
+ .rx_fixup = vl600_rx_fixup,
+ .tx_fixup = vl600_tx_fixup,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &vl600_info,
+ },
+ {}, /* End */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver lg_vl600_driver = {
+ .name = "lg-vl600",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(lg_vl600_driver);
+
+MODULE_AUTHOR("Anrzej Zaborowski");
+MODULE_DESCRIPTION("LG-VL600 modem's ethernet link");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
new file mode 100644
index 0000000..4f345bd
--- /dev/null
+++ b/drivers/net/usb/mcs7830.c
@@ -0,0 +1,642 @@
+/*
+ * MOSCHIP MCS7830 based (7730/7830/7832) USB 2.0 Ethernet Devices
+ *
+ * based on usbnet.c, asix.c and the vendor provided mcs7830 driver
+ *
+ * Copyright (C) 2010 Andreas Mohr <andi@lisas.de>
+ * Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>
+ * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
+ * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
+ * Copyright (c) 2002-2003 TiVo Inc.
+ *
+ * Definitions gathered from MOSCHIP, Data Sheet_7830DA.pdf (thanks!).
+ *
+ * 2010-12-19: add 7832 USB PID ("functionality same as MCS7830"),
+ * per active notification by manufacturer
+ *
+ * TODO:
+ * - support HIF_REG_CONFIG_SLEEPMODE/HIF_REG_CONFIG_TXENABLE (via autopm?)
+ * - implement ethtool_ops get_pauseparam/set_pauseparam
+ * via HIF_REG_PAUSE_THRESHOLD (>= revision C only!)
+ * - implement get_eeprom/[set_eeprom]
+ * - switch PHY on/off on ifup/ifdown (perhaps in usbnet.c, via MII)
+ * - mcs7830_get_regs() handling is weird: for rev 2 we return 32 regs,
+ * can access only ~ 24, remaining user buffer is uninitialized garbage
+ * - anything else?
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/crc32.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+
+/* requests */
+#define MCS7830_RD_BMREQ (USB_DIR_IN | USB_TYPE_VENDOR | \
+ USB_RECIP_DEVICE)
+#define MCS7830_WR_BMREQ (USB_DIR_OUT | USB_TYPE_VENDOR | \
+ USB_RECIP_DEVICE)
+#define MCS7830_RD_BREQ 0x0E
+#define MCS7830_WR_BREQ 0x0D
+
+#define MCS7830_CTRL_TIMEOUT 1000
+#define MCS7830_MAX_MCAST 64
+
+#define MCS7830_VENDOR_ID 0x9710
+#define MCS7832_PRODUCT_ID 0x7832
+#define MCS7830_PRODUCT_ID 0x7830
+#define MCS7730_PRODUCT_ID 0x7730
+
+#define SITECOM_VENDOR_ID 0x0DF6
+#define LN_030_PRODUCT_ID 0x0021
+
+#define MCS7830_MII_ADVERTISE (ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \
+ ADVERTISE_100HALF | ADVERTISE_10FULL | \
+ ADVERTISE_10HALF | ADVERTISE_CSMA)
+
+/* HIF_REG_XX corresponding index value */
+enum {
+ HIF_REG_MULTICAST_HASH = 0x00,
+ HIF_REG_PACKET_GAP1 = 0x08,
+ HIF_REG_PACKET_GAP2 = 0x09,
+ HIF_REG_PHY_DATA = 0x0a,
+ HIF_REG_PHY_CMD1 = 0x0c,
+ HIF_REG_PHY_CMD1_READ = 0x40,
+ HIF_REG_PHY_CMD1_WRITE = 0x20,
+ HIF_REG_PHY_CMD1_PHYADDR = 0x01,
+ HIF_REG_PHY_CMD2 = 0x0d,
+ HIF_REG_PHY_CMD2_PEND_FLAG_BIT = 0x80,
+ HIF_REG_PHY_CMD2_READY_FLAG_BIT = 0x40,
+ HIF_REG_CONFIG = 0x0e,
+ /* hmm, spec sez: "R/W", "Except bit 3" (likely TXENABLE). */
+ HIF_REG_CONFIG_CFG = 0x80,
+ HIF_REG_CONFIG_SPEED100 = 0x40,
+ HIF_REG_CONFIG_FULLDUPLEX_ENABLE = 0x20,
+ HIF_REG_CONFIG_RXENABLE = 0x10,
+ HIF_REG_CONFIG_TXENABLE = 0x08,
+ HIF_REG_CONFIG_SLEEPMODE = 0x04,
+ HIF_REG_CONFIG_ALLMULTICAST = 0x02,
+ HIF_REG_CONFIG_PROMISCUOUS = 0x01,
+ HIF_REG_ETHERNET_ADDR = 0x0f,
+ HIF_REG_FRAME_DROP_COUNTER = 0x15, /* 0..ff; reset: 0 */
+ HIF_REG_PAUSE_THRESHOLD = 0x16,
+ HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0,
+};
+
+/* Trailing status byte in Ethernet Rx frame */
+enum {
+ MCS7830_RX_SHORT_FRAME = 0x01, /* < 64 bytes */
+ MCS7830_RX_LENGTH_ERROR = 0x02, /* framelen != Ethernet length field */
+ MCS7830_RX_ALIGNMENT_ERROR = 0x04, /* non-even number of nibbles */
+ MCS7830_RX_CRC_ERROR = 0x08,
+ MCS7830_RX_LARGE_FRAME = 0x10, /* > 1518 bytes */
+ MCS7830_RX_FRAME_CORRECT = 0x20, /* frame is correct */
+ /* [7:6] reserved */
+};
+
+struct mcs7830_data {
+ u8 multi_filter[8];
+ u8 config;
+};
+
+static const char driver_name[] = "MOSCHIP usb-ethernet driver";
+
+static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data)
+{
+ return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ,
+ 0x0000, index, data, size);
+}
+
+static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data)
+{
+ return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ,
+ 0x0000, index, data, size);
+}
+
+static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data)
+{
+ usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ,
+ 0x0000, index, data, size);
+}
+
+static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr)
+{
+ int ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int mcs7830_hif_set_mac_address(struct usbnet *dev, unsigned char *addr)
+{
+ int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr);
+
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int mcs7830_set_mac_address(struct net_device *netdev, void *p)
+{
+ int ret;
+ struct usbnet *dev = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (netif_running(netdev))
+ return -EBUSY;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ ret = mcs7830_hif_set_mac_address(dev, addr->sa_data);
+
+ if (ret < 0)
+ return ret;
+
+ /* it worked --> adopt it on netdev side */
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+ return 0;
+}
+
+static int mcs7830_read_phy(struct usbnet *dev, u8 index)
+{
+ int ret;
+ int i;
+ __le16 val;
+
+ u8 cmd[2] = {
+ HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR,
+ HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index,
+ };
+
+ mutex_lock(&dev->phy_mutex);
+ /* write the MII command */
+ ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
+ if (ret < 0)
+ goto out;
+
+ /* wait for the data to become valid, should be within < 1ms */
+ for (i = 0; i < 10; i++) {
+ ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
+ if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT))
+ break;
+ ret = -EIO;
+ msleep(1);
+ }
+ if (ret < 0)
+ goto out;
+
+ /* read actual register contents */
+ ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val);
+ if (ret < 0)
+ goto out;
+ ret = le16_to_cpu(val);
+ dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n",
+ index, val, i);
+out:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val)
+{
+ int ret;
+ int i;
+ __le16 le_val;
+
+ u8 cmd[2] = {
+ HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR,
+ HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F),
+ };
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* write the new register contents */
+ le_val = cpu_to_le16(val);
+ ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val);
+ if (ret < 0)
+ goto out;
+
+ /* write the MII command */
+ ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
+ if (ret < 0)
+ goto out;
+
+ /* wait for the command to be accepted by the PHY */
+ for (i = 0; i < 10; i++) {
+ ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
+ if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT))
+ break;
+ ret = -EIO;
+ msleep(1);
+ }
+ if (ret < 0)
+ goto out;
+
+ ret = 0;
+ dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n",
+ index, val, i);
+out:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+/*
+ * This algorithm comes from the original mcs7830 version 1.4 driver,
+ * not sure if it is needed.
+ */
+static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode)
+{
+ int ret;
+ /* Enable all media types */
+ ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE);
+
+ /* First reset BMCR */
+ if (!ret)
+ ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000);
+ /* Enable Auto Neg */
+ if (!ret)
+ ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE);
+ /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */
+ if (!ret)
+ ret = mcs7830_write_phy(dev, MII_BMCR,
+ BMCR_ANENABLE | BMCR_ANRESTART );
+ return ret;
+}
+
+
+/*
+ * if we can read register 22, the chip revision is C or higher
+ */
+static int mcs7830_get_rev(struct usbnet *dev)
+{
+ u8 dummy[2];
+ int ret;
+ ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy);
+ if (ret > 0)
+ return 2; /* Rev C or later */
+ return 1; /* earlier revision */
+}
+
+/*
+ * On rev. C we need to set the pause threshold
+ */
+static void mcs7830_rev_C_fixup(struct usbnet *dev)
+{
+ u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT;
+ int retry;
+
+ for (retry = 0; retry < 2; retry++) {
+ if (mcs7830_get_rev(dev) == 2) {
+ dev_info(&dev->udev->dev, "applying rev.C fixup\n");
+ mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD,
+ 1, &pause_threshold);
+ }
+ msleep(1);
+ }
+}
+
+static int mcs7830_mdio_read(struct net_device *netdev, int phy_id,
+ int location)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ return mcs7830_read_phy(dev, location);
+}
+
+static void mcs7830_mdio_write(struct net_device *netdev, int phy_id,
+ int location, int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ mcs7830_write_phy(dev, location, val);
+}
+
+static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev)
+{
+ return (struct mcs7830_data *)&dev->data;
+}
+
+static void mcs7830_hif_update_multicast_hash(struct usbnet *dev)
+{
+ struct mcs7830_data *data = mcs7830_get_data(dev);
+ mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH,
+ sizeof data->multi_filter,
+ data->multi_filter);
+}
+
+static void mcs7830_hif_update_config(struct usbnet *dev)
+{
+ /* implementation specific to data->config
+ (argument needs to be heap-based anyway - USB DMA!) */
+ struct mcs7830_data *data = mcs7830_get_data(dev);
+ mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config);
+}
+
+static void mcs7830_data_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct mcs7830_data *data = mcs7830_get_data(dev);
+
+ memset(data->multi_filter, 0, sizeof data->multi_filter);
+
+ data->config = HIF_REG_CONFIG_TXENABLE;
+
+ /* this should not be needed, but it doesn't work otherwise */
+ data->config |= HIF_REG_CONFIG_ALLMULTICAST;
+
+ if (net->flags & IFF_PROMISC) {
+ data->config |= HIF_REG_CONFIG_PROMISCUOUS;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > MCS7830_MAX_MCAST) {
+ data->config |= HIF_REG_CONFIG_ALLMULTICAST;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use the 20 byte dev->data
+ * for our 8 byte filter buffer
+ * to avoid allocating memory that
+ * is tricky to free later */
+ struct netdev_hw_addr *ha;
+ u32 crc_bits;
+
+ /* Build the multicast hash filter. */
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7);
+ }
+ }
+}
+
+static int mcs7830_apply_base_config(struct usbnet *dev)
+{
+ int ret;
+
+ /* re-configure known MAC (suspend case etc.) */
+ ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr);
+ if (ret) {
+ dev_info(&dev->udev->dev, "Cannot set MAC address\n");
+ goto out;
+ }
+
+ /* Set up PHY */
+ ret = mcs7830_set_autoneg(dev, 0);
+ if (ret) {
+ dev_info(&dev->udev->dev, "Cannot set autoneg\n");
+ goto out;
+ }
+
+ mcs7830_hif_update_multicast_hash(dev);
+ mcs7830_hif_update_config(dev);
+
+ mcs7830_rev_C_fixup(dev);
+ ret = 0;
+out:
+ return ret;
+}
+
+/* credits go to asix_set_multicast */
+static void mcs7830_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ mcs7830_data_set_multicast(net);
+
+ mcs7830_hif_update_multicast_hash(dev);
+ mcs7830_hif_update_config(dev);
+}
+
+static int mcs7830_get_regs_len(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ switch (mcs7830_get_rev(dev)) {
+ case 1:
+ return 21;
+ case 2:
+ return 32;
+ }
+ return 0;
+}
+
+static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo)
+{
+ usbnet_get_drvinfo(net, drvinfo);
+}
+
+static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ regs->version = mcs7830_get_rev(dev);
+ mcs7830_get_reg(dev, 0, regs->len, data);
+}
+
+static const struct ethtool_ops mcs7830_ethtool_ops = {
+ .get_drvinfo = mcs7830_get_drvinfo,
+ .get_regs_len = mcs7830_get_regs_len,
+ .get_regs = mcs7830_get_regs,
+
+ /* common usbnet calls */
+ .get_link = usbnet_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static const struct net_device_ops mcs7830_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = mcs7830_ioctl,
+ .ndo_set_rx_mode = mcs7830_set_multicast,
+ .ndo_set_mac_address = mcs7830_set_mac_address,
+};
+
+static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev)
+{
+ struct net_device *net = dev->net;
+ int ret;
+ int retry;
+
+ /* Initial startup: Gather MAC address setting from EEPROM */
+ ret = -EINVAL;
+ for (retry = 0; retry < 5 && ret; retry++)
+ ret = mcs7830_hif_get_mac_address(dev, net->dev_addr);
+ if (ret) {
+ dev_warn(&dev->udev->dev, "Cannot read MAC address\n");
+ goto out;
+ }
+
+ mcs7830_data_set_multicast(net);
+
+ ret = mcs7830_apply_base_config(dev);
+ if (ret)
+ goto out;
+
+ net->ethtool_ops = &mcs7830_ethtool_ops;
+ net->netdev_ops = &mcs7830_netdev_ops;
+
+ /* reserve space for the status byte on rx */
+ dev->rx_urb_size = ETH_FRAME_LEN + 1;
+
+ dev->mii.mdio_read = mcs7830_mdio_read;
+ dev->mii.mdio_write = mcs7830_mdio_write;
+ dev->mii.dev = net;
+ dev->mii.phy_id_mask = 0x3f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = *((u8 *) net->dev_addr + 1);
+
+ ret = usbnet_get_endpoints(dev, udev);
+out:
+ return ret;
+}
+
+/* The chip always appends a status byte that we need to strip */
+static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ u8 status;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len) {
+ dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
+ return 0;
+ }
+
+ skb_trim(skb, skb->len - 1);
+ status = skb->data[skb->len];
+
+ if (status != MCS7830_RX_FRAME_CORRECT) {
+ dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status);
+
+ /* hmm, perhaps usbnet.c already sees a globally visible
+ frame error and increments rx_errors on its own already? */
+ dev->net->stats.rx_errors++;
+
+ if (status & (MCS7830_RX_SHORT_FRAME
+ |MCS7830_RX_LENGTH_ERROR
+ |MCS7830_RX_LARGE_FRAME))
+ dev->net->stats.rx_length_errors++;
+ if (status & MCS7830_RX_ALIGNMENT_ERROR)
+ dev->net->stats.rx_frame_errors++;
+ if (status & MCS7830_RX_CRC_ERROR)
+ dev->net->stats.rx_crc_errors++;
+ }
+
+ return skb->len > 0;
+}
+
+static void mcs7830_status(struct usbnet *dev, struct urb *urb)
+{
+ u8 *buf = urb->transfer_buffer;
+ bool link, link_changed;
+
+ if (urb->actual_length < 16)
+ return;
+
+ link = !(buf[1] == 0x20);
+ link_changed = netif_carrier_ok(dev->net) != link;
+ if (link_changed) {
+ usbnet_link_change(dev, link, 0);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+}
+
+static const struct driver_info moschip_info = {
+ .description = "MOSCHIP 7830/7832/7730 usb-NET adapter",
+ .bind = mcs7830_bind,
+ .rx_fixup = mcs7830_rx_fixup,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .status = mcs7830_status,
+ .in = 1,
+ .out = 2,
+};
+
+static const struct driver_info sitecom_info = {
+ .description = "Sitecom LN-30 usb-NET adapter",
+ .bind = mcs7830_bind,
+ .rx_fixup = mcs7830_rx_fixup,
+ .flags = FLAG_ETHER | FLAG_LINK_INTR,
+ .status = mcs7830_status,
+ .in = 1,
+ .out = 2,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID),
+ .driver_info = (unsigned long) &moschip_info,
+ },
+ {
+ USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID),
+ .driver_info = (unsigned long) &moschip_info,
+ },
+ {
+ USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID),
+ .driver_info = (unsigned long) &moschip_info,
+ },
+ {
+ USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID),
+ .driver_info = (unsigned long) &sitecom_info,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static int mcs7830_reset_resume (struct usb_interface *intf)
+{
+ /* YES, this function is successful enough that ethtool -d
+ does show same output pre-/post-suspend */
+
+ struct usbnet *dev = usb_get_intfdata(intf);
+
+ mcs7830_apply_base_config(dev);
+
+ usbnet_resume(intf);
+
+ return 0;
+}
+
+static struct usb_driver mcs7830_driver = {
+ .name = driver_name,
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .reset_resume = mcs7830_reset_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(mcs7830_driver);
+
+MODULE_DESCRIPTION("USB to network adapter MCS7830)");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
new file mode 100644
index 0000000..4cbdb13
--- /dev/null
+++ b/drivers/net/usb/net1080.c
@@ -0,0 +1,544 @@
+/*
+ * Net1080 based USB host-to-host cables
+ * Copyright (C) 2000-2005 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+
+#include <asm/unaligned.h>
+
+
+/*
+ * Netchip 1080 driver ... http://www.netchip.com
+ * (Sept 2004: End-of-life announcement has been sent.)
+ * Used in (some) LapLink cables
+ */
+
+#define frame_errors data[1]
+
+/*
+ * NetChip framing of ethernet packets, supporting additional error
+ * checks for links that may drop bulk packets from inside messages.
+ * Odd USB length == always short read for last usb packet.
+ * - nc_header
+ * - Ethernet header (14 bytes)
+ * - payload
+ * - (optional padding byte, if needed so length becomes odd)
+ * - nc_trailer
+ *
+ * This framing is to be avoided for non-NetChip devices.
+ */
+
+struct nc_header { // packed:
+ __le16 hdr_len; // sizeof nc_header (LE, all)
+ __le16 packet_len; // payload size (including ethhdr)
+ __le16 packet_id; // detects dropped packets
+#define MIN_HEADER 6
+
+ // all else is optional, and must start with:
+ // __le16 vendorId; // from usb-if
+ // __le16 productId;
+} __packed;
+
+#define PAD_BYTE ((unsigned char)0xAC)
+
+struct nc_trailer {
+ __le16 packet_id;
+} __packed;
+
+// packets may use FLAG_FRAMING_NC and optional pad
+#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \
+ + sizeof (struct ethhdr) \
+ + (mtu) \
+ + 1 \
+ + sizeof (struct nc_trailer))
+
+#define MIN_FRAMED FRAMED_SIZE(0)
+
+/* packets _could_ be up to 64KB... */
+#define NC_MAX_PACKET 32767
+
+
+/*
+ * Zero means no timeout; else, how long a 64 byte bulk packet may be queued
+ * before the hardware drops it. If that's done, the driver will need to
+ * frame network packets to guard against the dropped USB packets. The win32
+ * driver sets this for both sides of the link.
+ */
+#define NC_READ_TTL_MS ((u8)255) // ms
+
+/*
+ * We ignore most registers and EEPROM contents.
+ */
+#define REG_USBCTL ((u8)0x04)
+#define REG_TTL ((u8)0x10)
+#define REG_STATUS ((u8)0x11)
+
+/*
+ * Vendor specific requests to read/write data
+ */
+#define REQUEST_REGISTER ((u8)0x10)
+#define REQUEST_EEPROM ((u8)0x11)
+
+static int
+nc_vendor_read(struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr)
+{
+ int status = usbnet_read_cmd(dev, req,
+ USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE,
+ 0, regnum, retval_ptr,
+ sizeof *retval_ptr);
+ if (status > 0)
+ status = 0;
+ if (!status)
+ le16_to_cpus(retval_ptr);
+ return status;
+}
+
+static inline int
+nc_register_read(struct usbnet *dev, u8 regnum, u16 *retval_ptr)
+{
+ return nc_vendor_read(dev, REQUEST_REGISTER, regnum, retval_ptr);
+}
+
+// no retval ... can become async, usable in_interrupt()
+static void
+nc_vendor_write(struct usbnet *dev, u8 req, u8 regnum, u16 value)
+{
+ usbnet_write_cmd(dev, req,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, regnum, NULL, 0);
+}
+
+static inline void
+nc_register_write(struct usbnet *dev, u8 regnum, u16 value)
+{
+ nc_vendor_write(dev, REQUEST_REGISTER, regnum, value);
+}
+
+
+#if 0
+static void nc_dump_registers(struct usbnet *dev)
+{
+ u8 reg;
+ u16 *vp = kmalloc(sizeof (u16));
+
+ if (!vp)
+ return;
+
+ netdev_dbg(dev->net, "registers:\n");
+ for (reg = 0; reg < 0x20; reg++) {
+ int retval;
+
+ // reading some registers is trouble
+ if (reg >= 0x08 && reg <= 0xf)
+ continue;
+ if (reg >= 0x12 && reg <= 0x1e)
+ continue;
+
+ retval = nc_register_read(dev, reg, vp);
+ if (retval < 0)
+ netdev_dbg(dev->net, "reg [0x%x] ==> error %d\n",
+ reg, retval);
+ else
+ netdev_dbg(dev->net, "reg [0x%x] = 0x%x\n", reg, *vp);
+ }
+ kfree(vp);
+}
+#endif
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Control register
+ */
+
+#define USBCTL_WRITABLE_MASK 0x1f0f
+// bits 15-13 reserved, r/o
+#define USBCTL_ENABLE_LANG (1 << 12)
+#define USBCTL_ENABLE_MFGR (1 << 11)
+#define USBCTL_ENABLE_PROD (1 << 10)
+#define USBCTL_ENABLE_SERIAL (1 << 9)
+#define USBCTL_ENABLE_DEFAULTS (1 << 8)
+// bits 7-4 reserved, r/o
+#define USBCTL_FLUSH_OTHER (1 << 3)
+#define USBCTL_FLUSH_THIS (1 << 2)
+#define USBCTL_DISCONN_OTHER (1 << 1)
+#define USBCTL_DISCONN_THIS (1 << 0)
+
+static inline void nc_dump_usbctl(struct usbnet *dev, u16 usbctl)
+{
+ netif_dbg(dev, link, dev->net,
+ "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s; this%s%s; other%s%s; r/o 0x%x\n",
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ usbctl,
+ (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "",
+ (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "",
+ (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "",
+ (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "",
+ (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "",
+
+ (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "",
+ (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "",
+
+ (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "",
+ (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "",
+
+ usbctl & ~USBCTL_WRITABLE_MASK);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Status register
+ */
+
+#define STATUS_PORT_A (1 << 15)
+
+#define STATUS_CONN_OTHER (1 << 14)
+#define STATUS_SUSPEND_OTHER (1 << 13)
+#define STATUS_MAILBOX_OTHER (1 << 12)
+#define STATUS_PACKETS_OTHER(n) (((n) >> 8) & 0x03)
+
+#define STATUS_CONN_THIS (1 << 6)
+#define STATUS_SUSPEND_THIS (1 << 5)
+#define STATUS_MAILBOX_THIS (1 << 4)
+#define STATUS_PACKETS_THIS(n) (((n) >> 0) & 0x03)
+
+#define STATUS_UNSPEC_MASK 0x0c8c
+#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK))
+
+
+static inline void nc_dump_status(struct usbnet *dev, u16 status)
+{
+ netif_dbg(dev, link, dev->net,
+ "net1080 %s-%s status 0x%x: this (%c) PKT=%d%s%s%s; other PKT=%d%s%s%s; unspec 0x%x\n",
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ status,
+
+ // XXX the packet counts don't seem right
+ // (1 at reset, not 0); maybe UNSPEC too
+
+ (status & STATUS_PORT_A) ? 'A' : 'B',
+ STATUS_PACKETS_THIS(status),
+ (status & STATUS_CONN_THIS) ? " CON" : "",
+ (status & STATUS_SUSPEND_THIS) ? " SUS" : "",
+ (status & STATUS_MAILBOX_THIS) ? " MBOX" : "",
+
+ STATUS_PACKETS_OTHER(status),
+ (status & STATUS_CONN_OTHER) ? " CON" : "",
+ (status & STATUS_SUSPEND_OTHER) ? " SUS" : "",
+ (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "",
+
+ status & STATUS_UNSPEC_MASK);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * TTL register
+ */
+
+#define TTL_THIS(ttl) (0x00ff & ttl)
+#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8))
+#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this))))
+
+static inline void nc_dump_ttl(struct usbnet *dev, u16 ttl)
+{
+ netif_dbg(dev, link, dev->net, "net1080 %s-%s ttl 0x%x this = %d, other = %d\n",
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ ttl, TTL_THIS(ttl), TTL_OTHER(ttl));
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int net1080_reset(struct usbnet *dev)
+{
+ u16 usbctl, status, ttl;
+ u16 vp;
+ int retval;
+
+ // nc_dump_registers(dev);
+
+ if ((retval = nc_register_read(dev, REG_STATUS, &vp)) < 0) {
+ netdev_dbg(dev->net, "can't read %s-%s status: %d\n",
+ dev->udev->bus->bus_name, dev->udev->devpath, retval);
+ goto done;
+ }
+ status = vp;
+ nc_dump_status(dev, status);
+
+ if ((retval = nc_register_read(dev, REG_USBCTL, &vp)) < 0) {
+ netdev_dbg(dev->net, "can't read USBCTL, %d\n", retval);
+ goto done;
+ }
+ usbctl = vp;
+ nc_dump_usbctl(dev, usbctl);
+
+ nc_register_write(dev, REG_USBCTL,
+ USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER);
+
+ if ((retval = nc_register_read(dev, REG_TTL, &vp)) < 0) {
+ netdev_dbg(dev->net, "can't read TTL, %d\n", retval);
+ goto done;
+ }
+ ttl = vp;
+ // nc_dump_ttl(dev, ttl);
+
+ nc_register_write(dev, REG_TTL,
+ MK_TTL(NC_READ_TTL_MS, TTL_OTHER(ttl)) );
+ netdev_dbg(dev->net, "assigned TTL, %d ms\n", NC_READ_TTL_MS);
+
+ netif_info(dev, link, dev->net, "port %c, peer %sconnected\n",
+ (status & STATUS_PORT_A) ? 'A' : 'B',
+ (status & STATUS_CONN_OTHER) ? "" : "dis");
+ retval = 0;
+
+done:
+ return retval;
+}
+
+static int net1080_check_connect(struct usbnet *dev)
+{
+ int retval;
+ u16 status;
+ u16 vp;
+
+ retval = nc_register_read(dev, REG_STATUS, &vp);
+ status = vp;
+ if (retval != 0) {
+ netdev_dbg(dev->net, "net1080_check_conn read - %d\n", retval);
+ return retval;
+ }
+ if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER)
+ return -ENOLINK;
+ return 0;
+}
+
+static void nc_ensure_sync(struct usbnet *dev)
+{
+ if (++dev->frame_errors <= 5)
+ return;
+
+ if (usbnet_write_cmd_async(dev, REQUEST_REGISTER,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE,
+ USBCTL_FLUSH_THIS |
+ USBCTL_FLUSH_OTHER,
+ REG_USBCTL, NULL, 0))
+ return;
+
+ netif_dbg(dev, rx_err, dev->net,
+ "flush net1080; too many framing errors\n");
+ dev->frame_errors = 0;
+}
+
+static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct nc_header *header;
+ struct nc_trailer *trailer;
+ u16 hdr_len, packet_len;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ if (!(skb->len & 0x01)) {
+ netdev_dbg(dev->net, "rx framesize %d range %d..%d mtu %d\n",
+ skb->len, dev->net->hard_header_len, dev->hard_mtu,
+ dev->net->mtu);
+ dev->net->stats.rx_frame_errors++;
+ nc_ensure_sync(dev);
+ return 0;
+ }
+
+ header = (struct nc_header *) skb->data;
+ hdr_len = le16_to_cpup(&header->hdr_len);
+ packet_len = le16_to_cpup(&header->packet_len);
+ if (FRAMED_SIZE(packet_len) > NC_MAX_PACKET) {
+ dev->net->stats.rx_frame_errors++;
+ netdev_dbg(dev->net, "packet too big, %d\n", packet_len);
+ nc_ensure_sync(dev);
+ return 0;
+ } else if (hdr_len < MIN_HEADER) {
+ dev->net->stats.rx_frame_errors++;
+ netdev_dbg(dev->net, "header too short, %d\n", hdr_len);
+ nc_ensure_sync(dev);
+ return 0;
+ } else if (hdr_len > MIN_HEADER) {
+ // out of band data for us?
+ netdev_dbg(dev->net, "header OOB, %d bytes\n", hdr_len - MIN_HEADER);
+ nc_ensure_sync(dev);
+ // switch (vendor/product ids) { ... }
+ }
+ skb_pull(skb, hdr_len);
+
+ trailer = (struct nc_trailer *)
+ (skb->data + skb->len - sizeof *trailer);
+ skb_trim(skb, skb->len - sizeof *trailer);
+
+ if ((packet_len & 0x01) == 0) {
+ if (skb->data [packet_len] != PAD_BYTE) {
+ dev->net->stats.rx_frame_errors++;
+ netdev_dbg(dev->net, "bad pad\n");
+ return 0;
+ }
+ skb_trim(skb, skb->len - 1);
+ }
+ if (skb->len != packet_len) {
+ dev->net->stats.rx_frame_errors++;
+ netdev_dbg(dev->net, "bad packet len %d (expected %d)\n",
+ skb->len, packet_len);
+ nc_ensure_sync(dev);
+ return 0;
+ }
+ if (header->packet_id != get_unaligned(&trailer->packet_id)) {
+ dev->net->stats.rx_fifo_errors++;
+ netdev_dbg(dev->net, "(2+ dropped) rx packet_id mismatch 0x%x 0x%x\n",
+ le16_to_cpu(header->packet_id),
+ le16_to_cpu(trailer->packet_id));
+ return 0;
+ }
+#if 0
+ netdev_dbg(dev->net, "frame <rx h %d p %d id %d\n", header->hdr_len,
+ header->packet_len, header->packet_id);
+#endif
+ dev->frame_errors = 0;
+ return 1;
+}
+
+static struct sk_buff *
+net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ struct sk_buff *skb2;
+ struct nc_header *header = NULL;
+ struct nc_trailer *trailer = NULL;
+ int padlen = sizeof (struct nc_trailer);
+ int len = skb->len;
+
+ if (!((len + padlen + sizeof (struct nc_header)) & 0x01))
+ padlen++;
+ if (!skb_cloned(skb)) {
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+
+ if (padlen <= tailroom &&
+ sizeof(struct nc_header) <= headroom)
+ /* There's enough head and tail room */
+ goto encapsulate;
+
+ if ((sizeof (struct nc_header) + padlen) <
+ (headroom + tailroom)) {
+ /* There's enough total room, so just readjust */
+ skb->data = memmove(skb->head
+ + sizeof (struct nc_header),
+ skb->data, skb->len);
+ skb_set_tail_pointer(skb, len);
+ goto encapsulate;
+ }
+ }
+
+ /* Create a new skb to use with the correct size */
+ skb2 = skb_copy_expand(skb,
+ sizeof (struct nc_header),
+ padlen,
+ flags);
+ dev_kfree_skb_any(skb);
+ if (!skb2)
+ return skb2;
+ skb = skb2;
+
+encapsulate:
+ /* header first */
+ header = (struct nc_header *) skb_push(skb, sizeof *header);
+ header->hdr_len = cpu_to_le16(sizeof (*header));
+ header->packet_len = cpu_to_le16(len);
+ header->packet_id = cpu_to_le16((u16)dev->xid++);
+
+ /* maybe pad; then trailer */
+ if (!((skb->len + sizeof *trailer) & 0x01))
+ *skb_put(skb, 1) = PAD_BYTE;
+ trailer = (struct nc_trailer *) skb_put(skb, sizeof *trailer);
+ put_unaligned(header->packet_id, &trailer->packet_id);
+#if 0
+ netdev_dbg(dev->net, "frame >tx h %d p %d id %d\n",
+ header->hdr_len, header->packet_len,
+ header->packet_id);
+#endif
+ return skb;
+}
+
+static int net1080_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ unsigned extra = sizeof (struct nc_header)
+ + 1
+ + sizeof (struct nc_trailer);
+
+ dev->net->hard_header_len += extra;
+ dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu;
+ dev->hard_mtu = NC_MAX_PACKET;
+ return usbnet_get_endpoints (dev, intf);
+}
+
+static const struct driver_info net1080_info = {
+ .description = "NetChip TurboCONNECT",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_NC,
+ .bind = net1080_bind,
+ .reset = net1080_reset,
+ .check_connect = net1080_check_connect,
+ .rx_fixup = net1080_rx_fixup,
+ .tx_fixup = net1080_tx_fixup,
+};
+
+static const struct usb_device_id products [] = {
+{
+ USB_DEVICE(0x0525, 0x1080), // NetChip ref design
+ .driver_info = (unsigned long) &net1080_info,
+}, {
+ USB_DEVICE(0x06D0, 0x0622), // Laplink Gold
+ .driver_info = (unsigned long) &net1080_info,
+},
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver net1080_driver = {
+ .name = "net1080",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(net1080_driver);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("NetChip 1080 based USB Host-to-Host Links");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
new file mode 100644
index 0000000..17fac01
--- /dev/null
+++ b/drivers/net/usb/pegasus.c
@@ -0,0 +1,1356 @@
+/*
+ * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * ChangeLog:
+ * .... Most of the time spent on reading sources & docs.
+ * v0.2.x First official release for the Linux kernel.
+ * v0.3.0 Beutified and structured, some bugs fixed.
+ * v0.3.x URBifying bulk requests and bugfixing. First relatively
+ * stable release. Still can touch device's registers only
+ * from top-halves.
+ * v0.4.0 Control messages remained unurbified are now URBs.
+ * Now we can touch the HW at any time.
+ * v0.4.9 Control urbs again use process context to wait. Argh...
+ * Some long standing bugs (enable_net_traffic) fixed.
+ * Also nasty trick about resubmiting control urb from
+ * interrupt context used. Please let me know how it
+ * behaves. Pegasus II support added since this version.
+ * TODO: suppressing HCD warnings spewage on disconnect.
+ * v0.4.13 Ethernet address is now set at probe(), not at open()
+ * time as this seems to break dhcpd.
+ * v0.5.0 branch to 2.5.x kernels
+ * v0.5.1 ethtool support added
+ * v0.5.5 rx socket buffers are in a pool and the their allocation
+ * is out of the interrupt routine.
+ * ...
+ * v0.9.3 simplified [get|set]_register(s), async update registers
+ * logic revisited, receive skb_pool removed.
+ */
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/module.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+#include "pegasus.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v0.9.3 (2013/04/25)"
+#define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
+#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
+
+static const char driver_name[] = "pegasus";
+
+#undef PEGASUS_WRITE_EEPROM
+#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
+ BMSR_100FULL | BMSR_ANEGCAPABLE)
+
+static bool loopback;
+static bool mii_mode;
+static char *devid;
+
+static struct usb_eth_dev usb_dev_id[] = {
+#define PEGASUS_DEV(pn, vid, pid, flags) \
+ {.name = pn, .vendor = vid, .device = pid, .private = flags},
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+ PEGASUS_DEV(pn, vid, pid, flags)
+#include "pegasus.h"
+#undef PEGASUS_DEV
+#undef PEGASUS_DEV_CLASS
+ {NULL, 0, 0, 0},
+ {NULL, 0, 0, 0}
+};
+
+static struct usb_device_id pegasus_ids[] = {
+#define PEGASUS_DEV(pn, vid, pid, flags) \
+ {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
+/*
+ * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
+ * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
+ * ignore adaptors belonging to the "Wireless" class 0xE0. For this one
+ * case anyway, seeing as the pegasus is for "Wired" adaptors.
+ */
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+ {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
+ .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
+#include "pegasus.h"
+#undef PEGASUS_DEV
+#undef PEGASUS_DEV_CLASS
+ {},
+ {}
+};
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+module_param(loopback, bool, 0);
+module_param(mii_mode, bool, 0);
+module_param(devid, charp, 0);
+MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
+MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
+MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
+
+/* use ethtool to change the level for any given device */
+static int msg_level = -1;
+module_param(msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Override default message level");
+
+MODULE_DEVICE_TABLE(usb, pegasus_ids);
+static const struct net_device_ops pegasus_netdev_ops;
+
+/*****/
+
+static void async_ctrl_callback(struct urb *urb)
+{
+ struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
+ int status = urb->status;
+
+ if (status < 0)
+ dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
+ kfree(req);
+ usb_free_urb(urb);
+}
+
+static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmalloc(size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
+ indx, buf, size, 1000);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ else if (ret <= size)
+ memcpy(data, buf, ret);
+ kfree(buf);
+ return ret;
+}
+
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
+ const void *data)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmemdup(data, size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
+ indx, buf, size, 100);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ kfree(buf);
+ return ret;
+}
+
+static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmemdup(&data, 1, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
+ indx, buf, 1, 1000);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ kfree(buf);
+ return ret;
+}
+
+static int update_eth_regs_async(pegasus_t *pegasus)
+{
+ int ret = -ENOMEM;
+ struct urb *async_urb;
+ struct usb_ctrlrequest *req;
+
+ req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
+ if (req == NULL)
+ return ret;
+
+ async_urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (async_urb == NULL) {
+ kfree(req);
+ return ret;
+ }
+ req->bRequestType = PEGASUS_REQT_WRITE;
+ req->bRequest = PEGASUS_REQ_SET_REGS;
+ req->wValue = cpu_to_le16(0);
+ req->wIndex = cpu_to_le16(EthCtrl0);
+ req->wLength = cpu_to_le16(3);
+
+ usb_fill_control_urb(async_urb, pegasus->usb,
+ usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
+ pegasus->eth_regs, 3, async_ctrl_callback, req);
+
+ ret = usb_submit_urb(async_urb, GFP_ATOMIC);
+ if (ret) {
+ if (ret == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_err(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ }
+ return ret;
+}
+
+static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
+{
+ int i;
+ __u8 data[4] = { phy, 0, 0, indx };
+ __le16 regdi;
+ int ret = -ETIMEDOUT;
+
+ if (cmd & PHY_WRITE) {
+ __le16 *t = (__le16 *) & data[1];
+ *t = cpu_to_le16(*regd);
+ }
+ set_register(p, PhyCtrl, 0);
+ set_registers(p, PhyAddr, sizeof(data), data);
+ set_register(p, PhyCtrl, (indx | cmd));
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(p, PhyCtrl, 1, data);
+ if (ret < 0)
+ goto fail;
+ if (data[0] & PHY_DONE)
+ break;
+ }
+ if (i >= REG_TIMEOUT)
+ goto fail;
+ if (cmd & PHY_READ) {
+ ret = get_registers(p, PhyData, 2, ®di);
+ *regd = le16_to_cpu(regdi);
+ return ret;
+ }
+ return 0;
+fail:
+ netif_dbg(p, drv, p->net, "%s failed\n", __func__);
+ return ret;
+}
+
+/* Returns non-negative int on success, error on failure */
+static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+ return __mii_op(pegasus, phy, indx, regd, PHY_READ);
+}
+
+/* Returns zero on success, error on failure */
+static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+ return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
+}
+
+static int mdio_read(struct net_device *dev, int phy_id, int loc)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u16 res;
+
+ read_mii_word(pegasus, phy_id, loc, &res);
+ return (int)res;
+}
+
+static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u16 data = val;
+
+ write_mii_word(pegasus, phy_id, loc, &data);
+}
+
+static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
+{
+ int i;
+ __u8 tmp;
+ __le16 retdatai;
+ int ret;
+
+ set_register(pegasus, EpromCtrl, 0);
+ set_register(pegasus, EpromOffset, index);
+ set_register(pegasus, EpromCtrl, EPROM_READ);
+
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
+ if (tmp & EPROM_DONE)
+ break;
+ if (ret == -ESHUTDOWN)
+ goto fail;
+ }
+ if (i >= REG_TIMEOUT)
+ goto fail;
+
+ ret = get_registers(pegasus, EpromData, 2, &retdatai);
+ *retdata = le16_to_cpu(retdatai);
+ return ret;
+
+fail:
+ netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
+ return -ETIMEDOUT;
+}
+
+#ifdef PEGASUS_WRITE_EEPROM
+static inline void enable_eprom_write(pegasus_t *pegasus)
+{
+ __u8 tmp;
+
+ get_registers(pegasus, EthCtrl2, 1, &tmp);
+ set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
+}
+
+static inline void disable_eprom_write(pegasus_t *pegasus)
+{
+ __u8 tmp;
+
+ get_registers(pegasus, EthCtrl2, 1, &tmp);
+ set_register(pegasus, EpromCtrl, 0);
+ set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
+}
+
+static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
+{
+ int i;
+ __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
+ int ret;
+ __le16 le_data = cpu_to_le16(data);
+
+ set_registers(pegasus, EpromOffset, 4, d);
+ enable_eprom_write(pegasus);
+ set_register(pegasus, EpromOffset, index);
+ set_registers(pegasus, EpromData, 2, &le_data);
+ set_register(pegasus, EpromCtrl, EPROM_WRITE);
+
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
+ if (ret == -ESHUTDOWN)
+ goto fail;
+ if (tmp & EPROM_DONE)
+ break;
+ }
+ disable_eprom_write(pegasus);
+ if (i >= REG_TIMEOUT)
+ goto fail;
+
+ return ret;
+
+fail:
+ netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
+ return -ETIMEDOUT;
+}
+#endif /* PEGASUS_WRITE_EEPROM */
+
+static inline void get_node_id(pegasus_t *pegasus, __u8 *id)
+{
+ int i;
+ __u16 w16;
+
+ for (i = 0; i < 3; i++) {
+ read_eprom_word(pegasus, i, &w16);
+ ((__le16 *) id)[i] = cpu_to_le16(w16);
+ }
+}
+
+static void set_ethernet_addr(pegasus_t *pegasus)
+{
+ __u8 node_id[6];
+
+ if (pegasus->features & PEGASUS_II) {
+ get_registers(pegasus, 0x10, sizeof(node_id), node_id);
+ } else {
+ get_node_id(pegasus, node_id);
+ set_registers(pegasus, EthID, sizeof(node_id), node_id);
+ }
+ memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id));
+}
+
+static inline int reset_mac(pegasus_t *pegasus)
+{
+ __u8 data = 0x8;
+ int i;
+
+ set_register(pegasus, EthCtrl1, data);
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ get_registers(pegasus, EthCtrl1, 1, &data);
+ if (~data & 0x08) {
+ if (loopback)
+ break;
+ if (mii_mode && (pegasus->features & HAS_HOME_PNA))
+ set_register(pegasus, Gpio1, 0x34);
+ else
+ set_register(pegasus, Gpio1, 0x26);
+ set_register(pegasus, Gpio0, pegasus->features);
+ set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
+ break;
+ }
+ }
+ if (i == REG_TIMEOUT)
+ return -ETIMEDOUT;
+
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
+ set_register(pegasus, Gpio0, 0x24);
+ set_register(pegasus, Gpio0, 0x26);
+ }
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
+ __u16 auxmode;
+ read_mii_word(pegasus, 3, 0x1b, &auxmode);
+ auxmode |= 4;
+ write_mii_word(pegasus, 3, 0x1b, &auxmode);
+ }
+
+ return 0;
+}
+
+static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
+{
+ __u16 linkpart;
+ __u8 data[4];
+ pegasus_t *pegasus = netdev_priv(dev);
+ int ret;
+
+ read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
+ data[0] = 0xc9;
+ data[1] = 0;
+ if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
+ data[1] |= 0x20; /* set full duplex */
+ if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
+ data[1] |= 0x10; /* set 100 Mbps */
+ if (mii_mode)
+ data[1] = 0;
+ data[2] = loopback ? 0x09 : 0x01;
+
+ memcpy(pegasus->eth_regs, data, sizeof(data));
+ ret = set_registers(pegasus, EthCtrl0, 3, data);
+
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
+ u16 auxmode;
+ read_mii_word(pegasus, 0, 0x1b, &auxmode);
+ auxmode |= 4;
+ write_mii_word(pegasus, 0, 0x1b, &auxmode);
+ }
+
+ return ret;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int rx_status, count = urb->actual_length;
+ int status = urb->status;
+ u8 *buf = urb->transfer_buffer;
+ __u16 pkt_len;
+
+ if (!pegasus)
+ return;
+
+ net = pegasus->net;
+ if (!netif_device_present(net) || !netif_running(net))
+ return;
+
+ switch (status) {
+ case 0:
+ break;
+ case -ETIME:
+ netif_dbg(pegasus, rx_err, net, "reset MAC\n");
+ pegasus->flags &= ~PEGASUS_RX_BUSY;
+ break;
+ case -EPIPE: /* stall, or disconnect from TT */
+ /* FIXME schedule work to clear the halt */
+ netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
+ return;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
+ return;
+ default:
+ netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
+ goto goon;
+ }
+
+ if (!count || count < 4)
+ goto goon;
+
+ rx_status = buf[count - 2];
+ if (rx_status & 0x1e) {
+ netif_dbg(pegasus, rx_err, net,
+ "RX packet error %x\n", rx_status);
+ pegasus->stats.rx_errors++;
+ if (rx_status & 0x06) /* long or runt */
+ pegasus->stats.rx_length_errors++;
+ if (rx_status & 0x08)
+ pegasus->stats.rx_crc_errors++;
+ if (rx_status & 0x10) /* extra bits */
+ pegasus->stats.rx_frame_errors++;
+ goto goon;
+ }
+ if (pegasus->chip == 0x8513) {
+ pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
+ pkt_len &= 0x0fff;
+ pegasus->rx_skb->data += 2;
+ } else {
+ pkt_len = buf[count - 3] << 8;
+ pkt_len += buf[count - 4];
+ pkt_len &= 0xfff;
+ pkt_len -= 8;
+ }
+
+ /*
+ * If the packet is unreasonably long, quietly drop it rather than
+ * kernel panicing by calling skb_put.
+ */
+ if (pkt_len > PEGASUS_MTU)
+ goto goon;
+
+ /*
+ * at this point we are sure pegasus->rx_skb != NULL
+ * so we go ahead and pass up the packet.
+ */
+ skb_put(pegasus->rx_skb, pkt_len);
+ pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
+ netif_rx(pegasus->rx_skb);
+ pegasus->stats.rx_packets++;
+ pegasus->stats.rx_bytes += pkt_len;
+
+ if (pegasus->flags & PEGASUS_UNPLUG)
+ return;
+
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
+ GFP_ATOMIC);
+
+ if (pegasus->rx_skb == NULL)
+ goto tl_sched;
+goon:
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+ rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
+ if (rx_status == -ENODEV)
+ netif_device_detach(pegasus->net);
+ else if (rx_status) {
+ pegasus->flags |= PEGASUS_RX_URB_FAIL;
+ goto tl_sched;
+ } else {
+ pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
+ }
+
+ return;
+
+tl_sched:
+ tasklet_schedule(&pegasus->rx_tl);
+}
+
+static void rx_fixup(unsigned long data)
+{
+ pegasus_t *pegasus;
+ int status;
+
+ pegasus = (pegasus_t *) data;
+ if (pegasus->flags & PEGASUS_UNPLUG)
+ return;
+
+ if (pegasus->flags & PEGASUS_RX_URB_FAIL)
+ if (pegasus->rx_skb)
+ goto try_again;
+ if (pegasus->rx_skb == NULL)
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+ PEGASUS_MTU,
+ GFP_ATOMIC);
+ if (pegasus->rx_skb == NULL) {
+ netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
+ tasklet_schedule(&pegasus->rx_tl);
+ return;
+ }
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+try_again:
+ status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
+ if (status == -ENODEV)
+ netif_device_detach(pegasus->net);
+ else if (status) {
+ pegasus->flags |= PEGASUS_RX_URB_FAIL;
+ tasklet_schedule(&pegasus->rx_tl);
+ } else {
+ pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
+ }
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int status = urb->status;
+
+ if (!pegasus)
+ return;
+
+ net = pegasus->net;
+
+ if (!netif_device_present(net) || !netif_running(net))
+ return;
+
+ switch (status) {
+ case -EPIPE:
+ /* FIXME schedule_work() to clear the tx halt */
+ netif_stop_queue(net);
+ netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
+ return;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
+ return;
+ default:
+ netif_info(pegasus, tx_err, net, "TX status %d\n", status);
+ /* FALL THROUGH */
+ case 0:
+ break;
+ }
+
+ net->trans_start = jiffies; /* prevent tx timeout */
+ netif_wake_queue(net);
+}
+
+static void intr_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int res, status = urb->status;
+
+ if (!pegasus)
+ return;
+ net = pegasus->net;
+
+ switch (status) {
+ case 0:
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ default:
+ /* some Pegasus-I products report LOTS of data
+ * toggle errors... avoid log spamming
+ */
+ netif_dbg(pegasus, timer, net, "intr status %d\n", status);
+ }
+
+ if (urb->actual_length >= 6) {
+ u8 *d = urb->transfer_buffer;
+
+ /* byte 0 == tx_status1, reg 2B */
+ if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
+ |LATE_COL|JABBER_TIMEOUT)) {
+ pegasus->stats.tx_errors++;
+ if (d[0] & TX_UNDERRUN)
+ pegasus->stats.tx_fifo_errors++;
+ if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
+ pegasus->stats.tx_aborted_errors++;
+ if (d[0] & LATE_COL)
+ pegasus->stats.tx_window_errors++;
+ }
+
+ /* d[5].LINK_STATUS lies on some adapters.
+ * d[0].NO_CARRIER kicks in only with failed TX.
+ * ... so monitoring with MII may be safest.
+ */
+
+ /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
+ pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
+ }
+
+ res = usb_submit_urb(urb, GFP_ATOMIC);
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ if (res)
+ netif_err(pegasus, timer, net,
+ "can't resubmit interrupt urb, %d\n", res);
+}
+
+static void pegasus_tx_timeout(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ netif_warn(pegasus, timer, net, "tx timeout\n");
+ usb_unlink_urb(pegasus->tx_urb);
+ pegasus->stats.tx_errors++;
+}
+
+static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
+ int res;
+ __u16 l16 = skb->len;
+
+ netif_stop_queue(net);
+
+ ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
+ skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
+ usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
+ usb_sndbulkpipe(pegasus->usb, 2),
+ pegasus->tx_buff, count,
+ write_bulk_callback, pegasus);
+ if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
+ netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
+ switch (res) {
+ case -EPIPE: /* stall, or disconnect from TT */
+ /* cleanup should already have been scheduled */
+ break;
+ case -ENODEV: /* disconnect() upcoming */
+ case -EPERM:
+ netif_device_detach(pegasus->net);
+ break;
+ default:
+ pegasus->stats.tx_errors++;
+ netif_start_queue(net);
+ }
+ } else {
+ pegasus->stats.tx_packets++;
+ pegasus->stats.tx_bytes += skb->len;
+ }
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
+{
+ return &((pegasus_t *) netdev_priv(dev))->stats;
+}
+
+static inline void disable_net_traffic(pegasus_t *pegasus)
+{
+ __le16 tmp = cpu_to_le16(0);
+
+ set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
+}
+
+static inline void get_interrupt_interval(pegasus_t *pegasus)
+{
+ u16 data;
+ u8 interval;
+
+ read_eprom_word(pegasus, 4, &data);
+ interval = data >> 8;
+ if (pegasus->usb->speed != USB_SPEED_HIGH) {
+ if (interval < 0x80) {
+ netif_info(pegasus, timer, pegasus->net,
+ "intr interval changed from %ums to %ums\n",
+ interval, 0x80);
+ interval = 0x80;
+ data = (data & 0x00FF) | ((u16)interval << 8);
+#ifdef PEGASUS_WRITE_EEPROM
+ write_eprom_word(pegasus, 4, data);
+#endif
+ }
+ }
+ pegasus->intr_interval = interval;
+}
+
+static void set_carrier(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ u16 tmp;
+
+ if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
+ return;
+
+ if (tmp & BMSR_LSTATUS)
+ netif_carrier_on(net);
+ else
+ netif_carrier_off(net);
+}
+
+static void free_all_urbs(pegasus_t *pegasus)
+{
+ usb_free_urb(pegasus->intr_urb);
+ usb_free_urb(pegasus->tx_urb);
+ usb_free_urb(pegasus->rx_urb);
+}
+
+static void unlink_all_urbs(pegasus_t *pegasus)
+{
+ usb_kill_urb(pegasus->intr_urb);
+ usb_kill_urb(pegasus->tx_urb);
+ usb_kill_urb(pegasus->rx_urb);
+}
+
+static int alloc_urbs(pegasus_t *pegasus)
+{
+ int res = -ENOMEM;
+
+ pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->rx_urb) {
+ return res;
+ }
+ pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->tx_urb) {
+ usb_free_urb(pegasus->rx_urb);
+ return res;
+ }
+ pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->intr_urb) {
+ usb_free_urb(pegasus->tx_urb);
+ usb_free_urb(pegasus->rx_urb);
+ return res;
+ }
+
+ return 0;
+}
+
+static int pegasus_open(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ int res=-ENOMEM;
+
+ if (pegasus->rx_skb == NULL)
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+ PEGASUS_MTU,
+ GFP_KERNEL);
+ if (!pegasus->rx_skb)
+ goto exit;
+
+ res = set_registers(pegasus, EthID, 6, net->dev_addr);
+
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+ if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
+ goto exit;
+ }
+
+ usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
+ usb_rcvintpipe(pegasus->usb, 3),
+ pegasus->intr_buff, sizeof(pegasus->intr_buff),
+ intr_callback, pegasus, pegasus->intr_interval);
+ if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
+ usb_kill_urb(pegasus->rx_urb);
+ goto exit;
+ }
+ res = enable_net_traffic(net, pegasus->usb);
+ if (res < 0) {
+ netif_dbg(pegasus, ifup, net,
+ "can't enable_net_traffic() - %d\n", res);
+ res = -EIO;
+ usb_kill_urb(pegasus->rx_urb);
+ usb_kill_urb(pegasus->intr_urb);
+ goto exit;
+ }
+ set_carrier(net);
+ netif_start_queue(net);
+ netif_dbg(pegasus, ifup, net, "open\n");
+ res = 0;
+exit:
+ return res;
+}
+
+static int pegasus_close(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+
+ netif_stop_queue(net);
+ if (!(pegasus->flags & PEGASUS_UNPLUG))
+ disable_net_traffic(pegasus);
+ tasklet_kill(&pegasus->rx_tl);
+ unlink_all_urbs(pegasus);
+
+ return 0;
+}
+
+static void pegasus_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+
+ strlcpy(info->driver, driver_name, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
+}
+
+/* also handles three patterns of some kind in hardware */
+#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
+
+static void
+pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+
+ wol->supported = WAKE_MAGIC | WAKE_PHY;
+ wol->wolopts = pegasus->wolopts;
+}
+
+static int
+pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u8 reg78 = 0x04;
+ int ret;
+
+ if (wol->wolopts & ~WOL_SUPPORTED)
+ return -EINVAL;
+
+ if (wol->wolopts & WAKE_MAGIC)
+ reg78 |= 0x80;
+ if (wol->wolopts & WAKE_PHY)
+ reg78 |= 0x40;
+ /* FIXME this 0x10 bit still needs to get set in the chip... */
+ if (wol->wolopts)
+ pegasus->eth_regs[0] |= 0x10;
+ else
+ pegasus->eth_regs[0] &= ~0x10;
+ pegasus->wolopts = wol->wolopts;
+
+ ret = set_register(pegasus, WakeupControl, reg78);
+ if (!ret)
+ ret = device_set_wakeup_enable(&pegasus->usb->dev,
+ wol->wolopts);
+ return ret;
+}
+
+static inline void pegasus_reset_wol(struct net_device *dev)
+{
+ struct ethtool_wolinfo wol;
+
+ memset(&wol, 0, sizeof wol);
+ (void) pegasus_set_wol(dev, &wol);
+}
+
+static int
+pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ pegasus_t *pegasus;
+
+ pegasus = netdev_priv(dev);
+ mii_ethtool_gset(&pegasus->mii, ecmd);
+ return 0;
+}
+
+static int
+pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_ethtool_sset(&pegasus->mii, ecmd);
+}
+
+static int pegasus_nway_reset(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_nway_restart(&pegasus->mii);
+}
+
+static u32 pegasus_get_link(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_link_ok(&pegasus->mii);
+}
+
+static u32 pegasus_get_msglevel(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return pegasus->msg_enable;
+}
+
+static void pegasus_set_msglevel(struct net_device *dev, u32 v)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ pegasus->msg_enable = v;
+}
+
+static const struct ethtool_ops ops = {
+ .get_drvinfo = pegasus_get_drvinfo,
+ .get_settings = pegasus_get_settings,
+ .set_settings = pegasus_set_settings,
+ .nway_reset = pegasus_nway_reset,
+ .get_link = pegasus_get_link,
+ .get_msglevel = pegasus_get_msglevel,
+ .set_msglevel = pegasus_set_msglevel,
+ .get_wol = pegasus_get_wol,
+ .set_wol = pegasus_set_wol,
+};
+
+static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ __u16 *data = (__u16 *) &rq->ifr_ifru;
+ pegasus_t *pegasus = netdev_priv(net);
+ int res;
+
+ switch (cmd) {
+ case SIOCDEVPRIVATE:
+ data[0] = pegasus->phy;
+ case SIOCDEVPRIVATE + 1:
+ read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
+ res = 0;
+ break;
+ case SIOCDEVPRIVATE + 2:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
+ res = 0;
+ break;
+ default:
+ res = -EOPNOTSUPP;
+ }
+ return res;
+}
+
+static void pegasus_set_multicast(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+
+ if (net->flags & IFF_PROMISC) {
+ pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
+ netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
+ } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
+ pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
+ pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
+ netif_dbg(pegasus, link, net, "set allmulti\n");
+ } else {
+ pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
+ pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
+ }
+ update_eth_regs_async(pegasus);
+}
+
+static __u8 mii_phy_probe(pegasus_t *pegasus)
+{
+ int i;
+ __u16 tmp;
+
+ for (i = 0; i < 32; i++) {
+ read_mii_word(pegasus, i, MII_BMSR, &tmp);
+ if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
+ continue;
+ else
+ return i;
+ }
+
+ return 0xff;
+}
+
+static inline void setup_pegasus_II(pegasus_t *pegasus)
+{
+ __u8 data = 0xa5;
+
+ set_register(pegasus, Reg1d, 0);
+ set_register(pegasus, Reg7b, 1);
+ mdelay(100);
+ if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
+ set_register(pegasus, Reg7b, 0);
+ else
+ set_register(pegasus, Reg7b, 2);
+
+ set_register(pegasus, 0x83, data);
+ get_registers(pegasus, 0x83, 1, &data);
+
+ if (data == 0xa5)
+ pegasus->chip = 0x8513;
+ else
+ pegasus->chip = 0;
+
+ set_register(pegasus, 0x80, 0xc0);
+ set_register(pegasus, 0x83, 0xff);
+ set_register(pegasus, 0x84, 0x01);
+
+ if (pegasus->features & HAS_HOME_PNA && mii_mode)
+ set_register(pegasus, Reg81, 6);
+ else
+ set_register(pegasus, Reg81, 2);
+}
+
+
+static int pegasus_count;
+static struct workqueue_struct *pegasus_workqueue;
+#define CARRIER_CHECK_DELAY (2 * HZ)
+
+static void check_carrier(struct work_struct *work)
+{
+ pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
+ set_carrier(pegasus->net);
+ if (!(pegasus->flags & PEGASUS_UNPLUG)) {
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ }
+}
+
+static int pegasus_blacklisted(struct usb_device *udev)
+{
+ struct usb_device_descriptor *udd = &udev->descriptor;
+
+ /* Special quirk to keep the driver from handling the Belkin Bluetooth
+ * dongle which happens to have the same ID.
+ */
+ if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
+ (udd->idProduct == cpu_to_le16(0x0121)) &&
+ (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
+ (udd->bDeviceProtocol == 1))
+ return 1;
+
+ return 0;
+}
+
+/* we rely on probe() and remove() being serialized so we
+ * don't need extra locking on pegasus_count.
+ */
+static void pegasus_dec_workqueue(void)
+{
+ pegasus_count--;
+ if (pegasus_count == 0) {
+ destroy_workqueue(pegasus_workqueue);
+ pegasus_workqueue = NULL;
+ }
+}
+
+static int pegasus_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct net_device *net;
+ pegasus_t *pegasus;
+ int dev_index = id - pegasus_ids;
+ int res = -ENOMEM;
+
+ if (pegasus_blacklisted(dev))
+ return -ENODEV;
+
+ if (pegasus_count == 0) {
+ pegasus_workqueue = create_singlethread_workqueue("pegasus");
+ if (!pegasus_workqueue)
+ return -ENOMEM;
+ }
+ pegasus_count++;
+
+ net = alloc_etherdev(sizeof(struct pegasus));
+ if (!net)
+ goto out;
+
+ pegasus = netdev_priv(net);
+ pegasus->dev_index = dev_index;
+
+ res = alloc_urbs(pegasus);
+ if (res < 0) {
+ dev_err(&intf->dev, "can't allocate %s\n", "urbs");
+ goto out1;
+ }
+
+ tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
+
+ INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
+
+ pegasus->intf = intf;
+ pegasus->usb = dev;
+ pegasus->net = net;
+
+
+ net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
+ net->netdev_ops = &pegasus_netdev_ops;
+ net->ethtool_ops = &ops;
+ pegasus->mii.dev = net;
+ pegasus->mii.mdio_read = mdio_read;
+ pegasus->mii.mdio_write = mdio_write;
+ pegasus->mii.phy_id_mask = 0x1f;
+ pegasus->mii.reg_num_mask = 0x1f;
+ pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
+ | NETIF_MSG_PROBE | NETIF_MSG_LINK);
+
+ pegasus->features = usb_dev_id[dev_index].private;
+ get_interrupt_interval(pegasus);
+ if (reset_mac(pegasus)) {
+ dev_err(&intf->dev, "can't reset MAC\n");
+ res = -EIO;
+ goto out2;
+ }
+ set_ethernet_addr(pegasus);
+ if (pegasus->features & PEGASUS_II) {
+ dev_info(&intf->dev, "setup Pegasus II specific registers\n");
+ setup_pegasus_II(pegasus);
+ }
+ pegasus->phy = mii_phy_probe(pegasus);
+ if (pegasus->phy == 0xff) {
+ dev_warn(&intf->dev, "can't locate MII phy, using default\n");
+ pegasus->phy = 1;
+ }
+ pegasus->mii.phy_id = pegasus->phy;
+ usb_set_intfdata(intf, pegasus);
+ SET_NETDEV_DEV(net, &intf->dev);
+ pegasus_reset_wol(net);
+ res = register_netdev(net);
+ if (res)
+ goto out3;
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
+ usb_dev_id[dev_index].name, net->dev_addr);
+ return 0;
+
+out3:
+ usb_set_intfdata(intf, NULL);
+out2:
+ free_all_urbs(pegasus);
+out1:
+ free_netdev(net);
+out:
+ pegasus_dec_workqueue();
+ return res;
+}
+
+static void pegasus_disconnect(struct usb_interface *intf)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (!pegasus) {
+ dev_dbg(&intf->dev, "unregistering non-bound device?\n");
+ return;
+ }
+
+ pegasus->flags |= PEGASUS_UNPLUG;
+ cancel_delayed_work(&pegasus->carrier_check);
+ unregister_netdev(pegasus->net);
+ unlink_all_urbs(pegasus);
+ free_all_urbs(pegasus);
+ if (pegasus->rx_skb != NULL) {
+ dev_kfree_skb(pegasus->rx_skb);
+ pegasus->rx_skb = NULL;
+ }
+ free_netdev(pegasus->net);
+ pegasus_dec_workqueue();
+}
+
+static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ netif_device_detach(pegasus->net);
+ cancel_delayed_work(&pegasus->carrier_check);
+ if (netif_running(pegasus->net)) {
+ usb_kill_urb(pegasus->rx_urb);
+ usb_kill_urb(pegasus->intr_urb);
+ }
+ return 0;
+}
+
+static int pegasus_resume(struct usb_interface *intf)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ netif_device_attach(pegasus->net);
+ if (netif_running(pegasus->net)) {
+ pegasus->rx_urb->status = 0;
+ pegasus->rx_urb->actual_length = 0;
+ read_bulk_callback(pegasus->rx_urb);
+
+ pegasus->intr_urb->status = 0;
+ pegasus->intr_urb->actual_length = 0;
+ intr_callback(pegasus->intr_urb);
+ }
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ return 0;
+}
+
+static const struct net_device_ops pegasus_netdev_ops = {
+ .ndo_open = pegasus_open,
+ .ndo_stop = pegasus_close,
+ .ndo_do_ioctl = pegasus_ioctl,
+ .ndo_start_xmit = pegasus_start_xmit,
+ .ndo_set_rx_mode = pegasus_set_multicast,
+ .ndo_get_stats = pegasus_netdev_stats,
+ .ndo_tx_timeout = pegasus_tx_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static struct usb_driver pegasus_driver = {
+ .name = driver_name,
+ .probe = pegasus_probe,
+ .disconnect = pegasus_disconnect,
+ .id_table = pegasus_ids,
+ .suspend = pegasus_suspend,
+ .resume = pegasus_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+static void __init parse_id(char *id)
+{
+ unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
+ char *token, *name = NULL;
+
+ if ((token = strsep(&id, ":")) != NULL)
+ name = token;
+ /* name now points to a null terminated string*/
+ if ((token = strsep(&id, ":")) != NULL)
+ vendor_id = simple_strtoul(token, NULL, 16);
+ if ((token = strsep(&id, ":")) != NULL)
+ device_id = simple_strtoul(token, NULL, 16);
+ flags = simple_strtoul(id, NULL, 16);
+ pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
+ driver_name, name, vendor_id, device_id, flags);
+
+ if (vendor_id > 0x10000 || vendor_id == 0)
+ return;
+ if (device_id > 0x10000 || device_id == 0)
+ return;
+
+ for (i = 0; usb_dev_id[i].name; i++);
+ usb_dev_id[i].name = name;
+ usb_dev_id[i].vendor = vendor_id;
+ usb_dev_id[i].device = device_id;
+ usb_dev_id[i].private = flags;
+ pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
+ pegasus_ids[i].idVendor = vendor_id;
+ pegasus_ids[i].idProduct = device_id;
+}
+
+static int __init pegasus_init(void)
+{
+ pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
+ if (devid)
+ parse_id(devid);
+ return usb_register(&pegasus_driver);
+}
+
+static void __exit pegasus_exit(void)
+{
+ usb_deregister(&pegasus_driver);
+}
+
+module_init(pegasus_init);
+module_exit(pegasus_exit);
diff --git a/drivers/net/usb/pegasus.h b/drivers/net/usb/pegasus.h
new file mode 100644
index 0000000..d156462
--- /dev/null
+++ b/drivers/net/usb/pegasus.h
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+
+#ifndef PEGASUS_DEV
+
+#define PEGASUS_II 0x80000000
+#define HAS_HOME_PNA 0x40000000
+
+#define PEGASUS_MTU 1536
+
+#define EPROM_WRITE 0x01
+#define EPROM_READ 0x02
+#define EPROM_DONE 0x04
+#define EPROM_WR_ENABLE 0x10
+#define EPROM_LOAD 0x20
+
+#define PHY_DONE 0x80
+#define PHY_READ 0x40
+#define PHY_WRITE 0x20
+#define DEFAULT_GPIO_RESET 0x24
+#define DEFAULT_GPIO_SET 0x26
+
+#define PEGASUS_PRESENT 0x00000001
+#define PEGASUS_TX_BUSY 0x00000004
+#define PEGASUS_RX_BUSY 0x00000008
+#define CTRL_URB_RUNNING 0x00000010
+#define CTRL_URB_SLEEP 0x00000020
+#define PEGASUS_UNPLUG 0x00000040
+#define PEGASUS_RX_URB_FAIL 0x00000080
+
+#define RX_MULTICAST 2
+#define RX_PROMISCUOUS 4
+
+#define REG_TIMEOUT (HZ)
+#define PEGASUS_TX_TIMEOUT (HZ*10)
+
+#define TX_UNDERRUN 0x80
+#define EXCESSIVE_COL 0x40
+#define LATE_COL 0x20
+#define NO_CARRIER 0x10
+#define LOSS_CARRIER 0x08
+#define JABBER_TIMEOUT 0x04
+
+#define LINK_STATUS 0x01
+
+#define PEGASUS_REQT_READ 0xc0
+#define PEGASUS_REQT_WRITE 0x40
+#define PEGASUS_REQ_GET_REGS 0xf0
+#define PEGASUS_REQ_SET_REGS 0xf1
+#define PEGASUS_REQ_SET_REG PEGASUS_REQ_SET_REGS
+
+enum pegasus_registers {
+ EthCtrl0 = 0,
+ EthCtrl1 = 1,
+ EthCtrl2 = 2,
+ EthID = 0x10,
+ Reg1d = 0x1d,
+ EpromOffset = 0x20,
+ EpromData = 0x21, /* 0x21 low, 0x22 high byte */
+ EpromCtrl = 0x23,
+ PhyAddr = 0x25,
+ PhyData = 0x26, /* 0x26 low, 0x27 high byte */
+ PhyCtrl = 0x28,
+ UsbStst = 0x2a,
+ EthTxStat0 = 0x2b,
+ EthTxStat1 = 0x2c,
+ EthRxStat = 0x2d,
+ WakeupControl = 0x78,
+ Reg7b = 0x7b,
+ Gpio0 = 0x7e,
+ Gpio1 = 0x7f,
+ Reg81 = 0x81,
+};
+
+
+typedef struct pegasus {
+ struct usb_device *usb;
+ struct usb_interface *intf;
+ struct net_device *net;
+ struct net_device_stats stats;
+ struct mii_if_info mii;
+ unsigned flags;
+ unsigned features;
+ u32 msg_enable;
+ u32 wolopts;
+ int dev_index;
+ int intr_interval;
+ struct tasklet_struct rx_tl;
+ struct delayed_work carrier_check;
+ struct urb *rx_urb, *tx_urb, *intr_urb;
+ struct sk_buff *rx_skb;
+ int chip;
+ unsigned char intr_buff[8];
+ __u8 tx_buff[PEGASUS_MTU];
+ __u8 eth_regs[4];
+ __u8 phy;
+ __u8 gpio_res;
+} pegasus_t;
+
+
+struct usb_eth_dev {
+ char *name;
+ __u16 vendor;
+ __u16 device;
+ __u32 private; /* LSB is gpio reset value */
+};
+
+#define VENDOR_3COM 0x0506
+#define VENDOR_ABOCOM 0x07b8
+#define VENDOR_ACCTON 0x083a
+#define VENDOR_ADMTEK 0x07a6
+#define VENDOR_AEILAB 0x3334
+#define VENDOR_ALLIEDTEL 0x07c9
+#define VENDOR_ATEN 0x0557
+#define VENDOR_BELKIN 0x050d
+#define VENDOR_BILLIONTON 0x08dd
+#define VENDOR_COMPAQ 0x049f
+#define VENDOR_COREGA 0x07aa
+#define VENDOR_DLINK 0x2001
+#define VENDOR_ELCON 0x0db7
+#define VENDOR_ELECOM 0x056e
+#define VENDOR_ELSA 0x05cc
+#define VENDOR_GIGABYTE 0x1044
+#define VENDOR_HAWKING 0x0e66
+#define VENDOR_HP 0x03f0
+#define VENDOR_IODATA 0x04bb
+#define VENDOR_KINGSTON 0x0951
+#define VENDOR_LANEED 0x056e
+#define VENDOR_LINKSYS 0x066b
+#define VENDOR_LINKSYS2 0x077b
+#define VENDOR_MELCO 0x0411
+#define VENDOR_MICROSOFT 0x045e
+#define VENDOR_MOBILITY 0x1342
+#define VENDOR_NETGEAR 0x0846
+#define VENDOR_OCT 0x0b39
+#define VENDOR_SMARTBRIDGES 0x08d1
+#define VENDOR_SMC 0x0707
+#define VENDOR_SOHOWARE 0x15e8
+#define VENDOR_SIEMENS 0x067c
+
+
+#else /* PEGASUS_DEV */
+
+PEGASUS_DEV("3Com USB Ethernet 3C460B", VENDOR_3COM, 0x4601,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("ATEN USB Ethernet UC-110T", VENDOR_ATEN, 0x2007,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("USB HPNA/Ethernet", VENDOR_ABOCOM, 0x110c,
+ DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA)
+PEGASUS_DEV("USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4104,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4004,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("USB HPNA/Ethernet", VENDOR_ABOCOM, 0x4007,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x4102,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x4002,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x400b,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x400c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0xabc1,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("USB 10/100 Fast Ethernet", VENDOR_ABOCOM, 0x200c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Accton USB 10/100 Ethernet Adapter", VENDOR_ACCTON, 0x1046,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("SpeedStream USB 10/100 Ethernet", VENDOR_ACCTON, 0x5046,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Philips USB 10/100 Ethernet", VENDOR_ACCTON, 0xb004,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("ADMtek ADM8511 \"Pegasus II\" USB Ethernet",
+ VENDOR_ADMTEK, 0x8511,
+ DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA)
+PEGASUS_DEV("ADMtek ADM8513 \"Pegasus II\" USB Ethernet",
+ VENDOR_ADMTEK, 0x8513,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("ADMtek ADM8515 \"Pegasus II\" USB-2.0 Ethernet",
+ VENDOR_ADMTEK, 0x8515,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("ADMtek AN986 \"Pegasus\" USB Ethernet (evaluation board)",
+ VENDOR_ADMTEK, 0x0986,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("AN986A USB MAC", VENDOR_ADMTEK, 1986,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("AEI USB Fast Ethernet Adapter", VENDOR_AEILAB, 0x1701,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+/*
+ * Distinguish between this Belkin adaptor and the Belkin bluetooth adaptors
+ * with the same product IDs by checking the device class too.
+ */
+PEGASUS_DEV_CLASS("Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121, 0x00,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Belkin F5U122 10/100 USB Ethernet", VENDOR_BELKIN, 0x0122,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Billionton USB-100", VENDOR_BILLIONTON, 0x0986,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Billionton USBLP-100", VENDOR_BILLIONTON, 0x0987,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("iPAQ Networking 10/100 USB", VENDOR_COMPAQ, 0x8511,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Billionton USBEL-100", VENDOR_BILLIONTON, 0x0988,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Billionton USBE-100", VENDOR_BILLIONTON, 0x8511,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Corega FEther USB-TX", VENDOR_COREGA, 0x0004,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Corega FEther USB-TXS", VENDOR_COREGA, 0x000d,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("D-Link DSB-650TX", VENDOR_DLINK, 0x4001,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("D-Link DSB-650TX", VENDOR_DLINK, 0x4002,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("D-Link DSB-650TX", VENDOR_DLINK, 0x4102,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("D-Link DSB-650TX", VENDOR_DLINK, 0x400b,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("D-Link DSB-650TX", VENDOR_DLINK, 0x200c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("D-Link DSB-650TX(PNA)", VENDOR_DLINK, 0x4003,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("D-Link DSB-650", VENDOR_DLINK, 0xabc1,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("GOLDPFEIL USB Adapter", VENDOR_ELCON, 0x0002,
+ DEFAULT_GPIO_RESET | PEGASUS_II | HAS_HOME_PNA)
+PEGASUS_DEV("ELECOM USB Ethernet LD-USB20", VENDOR_ELECOM, 0x4010,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("EasiDock Ethernet", VENDOR_MOBILITY, 0x0304,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Elsa Micolink USB2Ethernet", VENDOR_ELSA, 0x3000,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("GIGABYTE GN-BR402W Wireless Router", VENDOR_GIGABYTE, 0x8002,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Hawking UF100 10/100 Ethernet", VENDOR_HAWKING, 0x400c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("HP hn210c Ethernet USB", VENDOR_HP, 0x811c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("IO DATA USB ET/TX", VENDOR_IODATA, 0x0904,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("IO DATA USB ET/TX-S", VENDOR_IODATA, 0x0913,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("IO DATA USB ETX-US2", VENDOR_IODATA, 0x093a,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Kingston KNU101TX Ethernet", VENDOR_KINGSTON, 0x000a,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x4002,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("LANEED USB Ethernet LD-USBL/TX", VENDOR_LANEED, 0x4005,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x400b,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("LANEED USB Ethernet LD-USB/T", VENDOR_LANEED, 0xabc1,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x200c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Linksys USB10TX", VENDOR_LINKSYS, 0x2202,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Linksys USB100TX", VENDOR_LINKSYS, 0x2203,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Linksys USB100TX", VENDOR_LINKSYS, 0x2204,
+ DEFAULT_GPIO_RESET | HAS_HOME_PNA)
+PEGASUS_DEV("Linksys USB10T Ethernet Adapter", VENDOR_LINKSYS, 0x2206,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Linksys USBVPN1", VENDOR_LINKSYS2, 0x08b4,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("Linksys USB USB100TX", VENDOR_LINKSYS, 0x400b,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Linksys USB10TX", VENDOR_LINKSYS, 0x200c,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0001,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0005,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("MELCO/BUFFALO LUA2-TX", VENDOR_MELCO, 0x0009,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("Microsoft MN-110", VENDOR_MICROSOFT, 0x007a,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("NETGEAR FA101", VENDOR_NETGEAR, 0x1020,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("OCT Inc.", VENDOR_OCT, 0x0109,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("OCT USB TO Ethernet", VENDOR_OCT, 0x0901,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("smartNIC 2 PnP Adapter", VENDOR_SMARTBRIDGES, 0x0003,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("SMC 202 USB Ethernet", VENDOR_SMC, 0x0200,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("SMC 2206 USB Ethernet", VENDOR_SMC, 0x0201,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("SOHOware NUB100 Ethernet", VENDOR_SOHOWARE, 0x9100,
+ DEFAULT_GPIO_RESET)
+PEGASUS_DEV("SOHOware NUB110 Ethernet", VENDOR_SOHOWARE, 0x9110,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+PEGASUS_DEV("SpeedStream USB 10/100 Ethernet", VENDOR_SIEMENS, 0x1001,
+ DEFAULT_GPIO_RESET | PEGASUS_II)
+
+
+#endif /* PEGASUS_DEV */
diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c
new file mode 100644
index 0000000..7c02231
--- /dev/null
+++ b/drivers/net/usb/plusb.c
@@ -0,0 +1,173 @@
+/*
+ * PL-2301/2302 USB host-to-host link cables
+ * Copyright (C) 2000-2005 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+
+
+/*
+ * Prolific PL-2301/PL-2302 driver ... http://www.prolific.com.tw/
+ *
+ * The protocol and handshaking used here should be bug-compatible
+ * with the Linux 2.2 "plusb" driver, by Deti Fliegl.
+ *
+ * HEADS UP: this handshaking isn't all that robust. This driver
+ * gets confused easily if you unplug one end of the cable then
+ * try to connect it again; you'll need to restart both ends. The
+ * "naplink" software (used by some PlayStation/2 deveopers) does
+ * the handshaking much better! Also, sometimes this hardware
+ * seems to get wedged under load. Prolific docs are weak, and
+ * don't identify differences between PL2301 and PL2302, much less
+ * anything to explain the different PL2302 versions observed.
+ *
+ * NOTE: pl2501 has several modes, including pl2301 and pl2302
+ * compatibility. Some docs suggest the difference between 2301
+ * and 2302 is only to make MS-Windows use a different driver...
+ *
+ * pl25a1 glue based on patch from Tony Gibbs. Prolific "docs" on
+ * this chip are as usual incomplete about what control messages
+ * are supported.
+ */
+
+/*
+ * Bits 0-4 can be used for software handshaking; they're set from
+ * one end, cleared from the other, "read" with the interrupt byte.
+ */
+#define PL_S_EN (1<<7) /* (feature only) suspend enable */
+/* reserved bit -- rx ready (6) ? */
+#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */
+#define PL_RESET_OUT (1<<4) /* reset output pipe */
+#define PL_RESET_IN (1<<3) /* reset input pipe */
+#define PL_TX_C (1<<2) /* transmission complete */
+#define PL_TX_REQ (1<<1) /* transmission received */
+#define PL_PEER_E (1<<0) /* peer exists */
+
+static inline int
+pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index)
+{
+ return usbnet_read_cmd(dev, req,
+ USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE,
+ val, index, NULL, 0);
+}
+
+static inline int
+pl_clear_QuickLink_features(struct usbnet *dev, int val)
+{
+ return pl_vendor_req(dev, 1, (u8) val, 0);
+}
+
+static inline int
+pl_set_QuickLink_features(struct usbnet *dev, int val)
+{
+ return pl_vendor_req(dev, 3, (u8) val, 0);
+}
+
+static int pl_reset(struct usbnet *dev)
+{
+ int status;
+
+ /* some units seem to need this reset, others reject it utterly.
+ * FIXME be more like "naplink" or windows drivers.
+ */
+ status = pl_set_QuickLink_features(dev,
+ PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
+ if (status != 0 && netif_msg_probe(dev))
+ netif_dbg(dev, link, dev->net, "pl_reset --> %d\n", status);
+ return 0;
+}
+
+static const struct driver_info prolific_info = {
+ .description = "Prolific PL-2301/PL-2302/PL-25A1/PL-27A1",
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT,
+ /* some PL-2302 versions seem to fail usb_set_interface() */
+ .reset = pl_reset,
+};
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Proilific's name won't normally be on the cables, and
+ * may not be on the device.
+ */
+
+static const struct usb_device_id products [] = {
+
+/* full speed cables */
+{
+ USB_DEVICE(0x067b, 0x0000), // PL-2301
+ .driver_info = (unsigned long) &prolific_info,
+}, {
+ USB_DEVICE(0x067b, 0x0001), // PL-2302
+ .driver_info = (unsigned long) &prolific_info,
+},
+
+/* high speed cables */
+{
+ USB_DEVICE(0x067b, 0x25a1), /* PL-25A1, no eeprom */
+ .driver_info = (unsigned long) &prolific_info,
+}, {
+ USB_DEVICE(0x050d, 0x258a), /* Belkin F5U258/F5U279 (PL-25A1) */
+ .driver_info = (unsigned long) &prolific_info,
+}, {
+ USB_DEVICE(0x3923, 0x7825), /* National Instruments USB
+ * Host-to-Host Cable
+ */
+ .driver_info = (unsigned long) &prolific_info,
+
+},
+
+/* super speed cables */
+{
+ USB_DEVICE(0x067b, 0x27a1), /* PL-27A1, no eeprom
+ * also: goobay Active USB 3.0
+ * Data Link,
+ * Unitek Y-3501
+ */
+ .driver_info = (unsigned long) &prolific_info,
+},
+
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver plusb_driver = {
+ .name = "plusb",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(plusb_driver);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1/27A1 USB Host to Host Link Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
new file mode 100644
index 0000000..e325ca3
--- /dev/null
+++ b/drivers/net/usb/qmi_wwan.c
@@ -0,0 +1,877 @@
+/*
+ * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
+ *
+ * The probing code is heavily inspired by cdc_ether, which is:
+ * Copyright (C) 2003-2005 by David Brownell
+ * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc-wdm.h>
+
+/* This driver supports wwan (3G/LTE/?) devices using a vendor
+ * specific management protocol called Qualcomm MSM Interface (QMI) -
+ * in addition to the more common AT commands over serial interface
+ * management
+ *
+ * QMI is wrapped in CDC, using CDC encapsulated commands on the
+ * control ("master") interface of a two-interface CDC Union
+ * resembling standard CDC ECM. The devices do not use the control
+ * interface for any other CDC messages. Most likely because the
+ * management protocol is used in place of the standard CDC
+ * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
+ *
+ * Alternatively, control and data functions can be combined in a
+ * single USB interface.
+ *
+ * Handling a protocol like QMI is out of the scope for any driver.
+ * It is exported as a character device using the cdc-wdm driver as
+ * a subdriver, enabling userspace applications ("modem managers") to
+ * handle it.
+ *
+ * These devices may alternatively/additionally be configured using AT
+ * commands on a serial interface
+ */
+
+/* driver specific data */
+struct qmi_wwan_state {
+ struct usb_driver *subdriver;
+ atomic_t pmcount;
+ unsigned long unused;
+ struct usb_interface *control;
+ struct usb_interface *data;
+};
+
+/* default ethernet address used by the modem */
+static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
+
+static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};
+
+/* Make up an ethernet header if the packet doesn't have one.
+ *
+ * A firmware bug common among several devices cause them to send raw
+ * IP packets under some circumstances. There is no way for the
+ * driver/host to know when this will happen. And even when the bug
+ * hits, some packets will still arrive with an intact header.
+ *
+ * The supported devices are only capably of sending IPv4, IPv6 and
+ * ARP packets on a point-to-point link. Any packet with an ethernet
+ * header will have either our address or a broadcast/multicast
+ * address as destination. ARP packets will always have a header.
+ *
+ * This means that this function will reliably add the appropriate
+ * header iff necessary, provided our hardware address does not start
+ * with 4 or 6.
+ *
+ * Another common firmware bug results in all packets being addressed
+ * to 00:a0:c6:00:00:00 despite the host address being different.
+ * This function will also fixup such packets.
+ */
+static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ __be16 proto;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ switch (skb->data[0] & 0xf0) {
+ case 0x40:
+ proto = htons(ETH_P_IP);
+ break;
+ case 0x60:
+ proto = htons(ETH_P_IPV6);
+ break;
+ case 0x00:
+ if (is_multicast_ether_addr(skb->data))
+ return 1;
+ /* possibly bogus destination - rewrite just in case */
+ skb_reset_mac_header(skb);
+ goto fix_dest;
+ default:
+ /* pass along other packets without modifications */
+ return 1;
+ }
+ if (skb_headroom(skb) < ETH_HLEN)
+ return 0;
+ skb_push(skb, ETH_HLEN);
+ skb_reset_mac_header(skb);
+ eth_hdr(skb)->h_proto = proto;
+ eth_zero_addr(eth_hdr(skb)->h_source);
+fix_dest:
+ memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
+ return 1;
+}
+
+/* very simplistic detection of IPv4 or IPv6 headers */
+static bool possibly_iphdr(const char *data)
+{
+ return (data[0] & 0xd0) == 0x40;
+}
+
+/* disallow addresses which may be confused with IP headers */
+static int qmi_wwan_mac_addr(struct net_device *dev, void *p)
+{
+ int ret;
+ struct sockaddr *addr = p;
+
+ ret = eth_prepare_mac_addr_change(dev, p);
+ if (ret < 0)
+ return ret;
+ if (possibly_iphdr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+ eth_commit_mac_addr_change(dev, p);
+ return 0;
+}
+
+static const struct net_device_ops qmi_wwan_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = qmi_wwan_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/* using a counter to merge subdriver requests with our own into a
+ * combined state
+ */
+static int qmi_wwan_manage_power(struct usbnet *dev, int on)
+{
+ struct qmi_wwan_state *info = (void *)&dev->data;
+ int rv;
+
+ dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
+ atomic_read(&info->pmcount), on);
+
+ if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
+ (!on && atomic_dec_and_test(&info->pmcount))) {
+ /* need autopm_get/put here to ensure the usbcore sees
+ * the new value
+ */
+ rv = usb_autopm_get_interface(dev->intf);
+ dev->intf->needs_remote_wakeup = on;
+ if (!rv)
+ usb_autopm_put_interface(dev->intf);
+ }
+ return 0;
+}
+
+static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+
+ /* can be called while disconnecting */
+ if (!dev)
+ return 0;
+ return qmi_wwan_manage_power(dev, on);
+}
+
+/* collect all three endpoints and register subdriver */
+static int qmi_wwan_register_subdriver(struct usbnet *dev)
+{
+ int rv;
+ struct usb_driver *subdriver = NULL;
+ struct qmi_wwan_state *info = (void *)&dev->data;
+
+ /* collect bulk endpoints */
+ rv = usbnet_get_endpoints(dev, info->data);
+ if (rv < 0)
+ goto err;
+
+ /* update status endpoint if separate control interface */
+ if (info->control != info->data)
+ dev->status = &info->control->cur_altsetting->endpoint[0];
+
+ /* require interrupt endpoint for subdriver */
+ if (!dev->status) {
+ rv = -EINVAL;
+ goto err;
+ }
+
+ /* for subdriver power management */
+ atomic_set(&info->pmcount, 0);
+
+ /* register subdriver */
+ subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
+ 4096, &qmi_wwan_cdc_wdm_manage_power);
+ if (IS_ERR(subdriver)) {
+ dev_err(&info->control->dev, "subdriver registration failed\n");
+ rv = PTR_ERR(subdriver);
+ goto err;
+ }
+
+ /* prevent usbnet from using status endpoint */
+ dev->status = NULL;
+
+ /* save subdriver struct for suspend/resume wrappers */
+ info->subdriver = subdriver;
+
+err:
+ return rv;
+}
+
+static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status = -1;
+ u8 *buf = intf->cur_altsetting->extra;
+ int len = intf->cur_altsetting->extralen;
+ struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
+ struct usb_cdc_union_desc *cdc_union;
+ struct usb_cdc_ether_desc *cdc_ether;
+ struct usb_driver *driver = driver_of(intf);
+ struct qmi_wwan_state *info = (void *)&dev->data;
+ struct usb_cdc_parsed_header hdr;
+
+ BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
+ sizeof(struct qmi_wwan_state)));
+
+ /* set up initial state */
+ info->control = intf;
+ info->data = intf;
+
+ /* and a number of CDC descriptors */
+ cdc_parse_cdc_header(&hdr, intf, buf, len);
+ cdc_union = hdr.usb_cdc_union_desc;
+ cdc_ether = hdr.usb_cdc_ether_desc;
+
+ /* Use separate control and data interfaces if we found a CDC Union */
+ if (cdc_union) {
+ info->data = usb_ifnum_to_if(dev->udev,
+ cdc_union->bSlaveInterface0);
+ if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
+ !info->data) {
+ dev_err(&intf->dev,
+ "bogus CDC Union: master=%u, slave=%u\n",
+ cdc_union->bMasterInterface0,
+ cdc_union->bSlaveInterface0);
+ goto err;
+ }
+ }
+
+ /* errors aren't fatal - we can live with the dynamic address */
+ if (cdc_ether && cdc_ether->wMaxSegmentSize) {
+ dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
+ usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
+ }
+
+ /* claim data interface and set it up */
+ if (info->control != info->data) {
+ status = usb_driver_claim_interface(driver, info->data, dev);
+ if (status < 0)
+ goto err;
+ }
+
+ status = qmi_wwan_register_subdriver(dev);
+ if (status < 0 && info->control != info->data) {
+ usb_set_intfdata(info->data, NULL);
+ usb_driver_release_interface(driver, info->data);
+ }
+
+ /* Never use the same address on both ends of the link, even if the
+ * buggy firmware told us to. Or, if device is assigned the well-known
+ * buggy firmware MAC address, replace it with a random address,
+ */
+ if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
+ ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
+ eth_hw_addr_random(dev->net);
+
+ /* make MAC addr easily distinguishable from an IP header */
+ if (possibly_iphdr(dev->net->dev_addr)) {
+ dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
+ dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
+ }
+ dev->net->netdev_ops = &qmi_wwan_netdev_ops;
+err:
+ return status;
+}
+
+static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct qmi_wwan_state *info = (void *)&dev->data;
+ struct usb_driver *driver = driver_of(intf);
+ struct usb_interface *other;
+
+ if (info->subdriver && info->subdriver->disconnect)
+ info->subdriver->disconnect(info->control);
+
+ /* allow user to unbind using either control or data */
+ if (intf == info->control)
+ other = info->data;
+ else
+ other = info->control;
+
+ /* only if not shared */
+ if (other && intf != other) {
+ usb_set_intfdata(other, NULL);
+ usb_driver_release_interface(driver, other);
+ }
+
+ info->subdriver = NULL;
+ info->data = NULL;
+ info->control = NULL;
+}
+
+/* suspend/resume wrappers calling both usbnet and the cdc-wdm
+ * subdriver if present.
+ *
+ * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
+ * wrappers for those without adding usbnet reset support first.
+ */
+static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct qmi_wwan_state *info = (void *)&dev->data;
+ int ret;
+
+ /* Both usbnet_suspend() and subdriver->suspend() MUST return 0
+ * in system sleep context, otherwise, the resume callback has
+ * to recover device from previous suspend failure.
+ */
+ ret = usbnet_suspend(intf, message);
+ if (ret < 0)
+ goto err;
+
+ if (intf == info->control && info->subdriver &&
+ info->subdriver->suspend)
+ ret = info->subdriver->suspend(intf, message);
+ if (ret < 0)
+ usbnet_resume(intf);
+err:
+ return ret;
+}
+
+static int qmi_wwan_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct qmi_wwan_state *info = (void *)&dev->data;
+ int ret = 0;
+ bool callsub = (intf == info->control && info->subdriver &&
+ info->subdriver->resume);
+
+ if (callsub)
+ ret = info->subdriver->resume(intf);
+ if (ret < 0)
+ goto err;
+ ret = usbnet_resume(intf);
+ if (ret < 0 && callsub)
+ info->subdriver->suspend(intf, PMSG_SUSPEND);
+err:
+ return ret;
+}
+
+static const struct driver_info qmi_wwan_info = {
+ .description = "WWAN/QMI device",
+ .flags = FLAG_WWAN,
+ .bind = qmi_wwan_bind,
+ .unbind = qmi_wwan_unbind,
+ .manage_power = qmi_wwan_manage_power,
+ .rx_fixup = qmi_wwan_rx_fixup,
+};
+
+#define HUAWEI_VENDOR_ID 0x12D1
+
+/* map QMI/wwan function by a fixed interface number */
+#define QMI_FIXED_INTF(vend, prod, num) \
+ USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
+ .driver_info = (unsigned long)&qmi_wwan_info
+
+/* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
+#define QMI_GOBI1K_DEVICE(vend, prod) \
+ QMI_FIXED_INTF(vend, prod, 3)
+
+/* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
+#define QMI_GOBI_DEVICE(vend, prod) \
+ QMI_FIXED_INTF(vend, prod, 0)
+
+static const struct usb_device_id products[] = {
+ /* 1. CDC ECM like devices match on the control interface */
+ { /* Huawei E392, E398 and possibly others sharing both device id and more... */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+
+ /* 2. Combined interface devices matching on class+protocol */
+ { /* Huawei E367 and possibly others in "Windows mode" */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Huawei E392, E398 and possibly others in "Windows mode" */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */
+ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Pantech UML290, P4200 and more */
+ USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Pantech UML290 - newer firmware */
+ USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Novatel USB551L and MC551 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Novatel E362 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Novatel Expedite E371 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9011,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Dell Wireless 5800 (Novatel E362) */
+ USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Dell Wireless 5800 V2 (Novatel E362) */
+ USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* Dell Wireless 5804 (Novatel E371) */
+ USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* ADU960S */
+ USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* HP lt2523 (Novatel E371) */
+ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d,
+ USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET,
+ USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+ { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
+ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
+ .driver_info = (unsigned long)&qmi_wwan_info,
+ },
+
+ /* 3. Combined interface devices matching on interface number */
+ {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
+ {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */
+ {QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
+ {QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x7101, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x7101, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x7101, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x7102, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x7102, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x7102, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x8000, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x8001, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9000, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9003, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9005, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x900a, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x900b, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x900c, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x900c, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x900c, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x900d, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x900f, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x900f, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x900f, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9010, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9010, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9011, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9011, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9021, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x9022, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */
+ {QMI_FIXED_INTF(0x05c6, 0x9026, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x902e, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9031, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9032, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9033, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9033, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9033, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9033, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9034, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9034, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9034, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9034, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9034, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9035, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9036, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9037, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9038, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x903b, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x903c, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x903d, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x903e, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9043, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9046, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9046, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9046, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9047, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x9047, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9047, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9048, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9048, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9048, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9048, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9048, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x904c, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x904c, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x904c, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x904c, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9050, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9052, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9053, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9053, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9054, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9054, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9055, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9055, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9055, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9055, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9055, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9056, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9062, 9)},
+ {QMI_FIXED_INTF(0x05c6, 0x9064, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9065, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9065, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9066, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9066, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9067, 1)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 2)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9068, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9069, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9069, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9069, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9069, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9070, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9070, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9075, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9076, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9076, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9076, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9076, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9076, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9077, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9077, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9077, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9077, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9078, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9079, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x9079, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
+ {QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
+ {QMI_FIXED_INTF(0x05c6, 0x9080, 7)},
+ {QMI_FIXED_INTF(0x05c6, 0x9080, 8)},
+ {QMI_FIXED_INTF(0x05c6, 0x9083, 3)},
+ {QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
+ {QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
+ {QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
+ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
+ {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */
+ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */
+ {QMI_FIXED_INTF(0x16d8, 0x6003, 0)}, /* CMOTech 6003 */
+ {QMI_FIXED_INTF(0x16d8, 0x6007, 0)}, /* CMOTech CHE-628S */
+ {QMI_FIXED_INTF(0x16d8, 0x6008, 0)}, /* CMOTech CMU-301 */
+ {QMI_FIXED_INTF(0x16d8, 0x6280, 0)}, /* CMOTech CHU-628 */
+ {QMI_FIXED_INTF(0x16d8, 0x7001, 0)}, /* CMOTech CHU-720S */
+ {QMI_FIXED_INTF(0x16d8, 0x7002, 0)}, /* CMOTech 7002 */
+ {QMI_FIXED_INTF(0x16d8, 0x7003, 4)}, /* CMOTech CHU-629K */
+ {QMI_FIXED_INTF(0x16d8, 0x7004, 3)}, /* CMOTech 7004 */
+ {QMI_FIXED_INTF(0x16d8, 0x7006, 5)}, /* CMOTech CGU-629 */
+ {QMI_FIXED_INTF(0x16d8, 0x700a, 4)}, /* CMOTech CHU-629S */
+ {QMI_FIXED_INTF(0x16d8, 0x7211, 0)}, /* CMOTech CHU-720I */
+ {QMI_FIXED_INTF(0x16d8, 0x7212, 0)}, /* CMOTech 7212 */
+ {QMI_FIXED_INTF(0x16d8, 0x7213, 0)}, /* CMOTech 7213 */
+ {QMI_FIXED_INTF(0x16d8, 0x7251, 1)}, /* CMOTech 7251 */
+ {QMI_FIXED_INTF(0x16d8, 0x7252, 1)}, /* CMOTech 7252 */
+ {QMI_FIXED_INTF(0x16d8, 0x7253, 1)}, /* CMOTech 7253 */
+ {QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
+ {QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
+ {QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x0019, 3)}, /* ONDA MT689DC */
+ {QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
+ {QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0042, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0049, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0052, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x0113, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0118, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0121, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0123, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0124, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0125, 6)},
+ {QMI_FIXED_INTF(0x19d2, 0x0126, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0130, 1)},
+ {QMI_FIXED_INTF(0x19d2, 0x0133, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x0141, 5)},
+ {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */
+ {QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */
+ {QMI_FIXED_INTF(0x19d2, 0x0168, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x0176, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x0178, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */
+ {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */
+ {QMI_FIXED_INTF(0x19d2, 0x0200, 1)},
+ {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */
+ {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */
+ {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */
+ {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */
+ {QMI_FIXED_INTF(0x19d2, 0x0412, 4)}, /* Telewell TW-LTE 4G */
+ {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */
+ {QMI_FIXED_INTF(0x19d2, 0x1021, 2)},
+ {QMI_FIXED_INTF(0x19d2, 0x1245, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1247, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1252, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1254, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1255, 3)},
+ {QMI_FIXED_INTF(0x19d2, 0x1255, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1256, 4)},
+ {QMI_FIXED_INTF(0x19d2, 0x1270, 5)}, /* ZTE MF667 */
+ {QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
+ {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */
+ {QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
+ {QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
+ {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */
+ {QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */
+ {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */
+ {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */
+ {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */
+ {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */
+ {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */
+ {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */
+ {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */
+ {QMI_FIXED_INTF(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354 */
+ {QMI_FIXED_INTF(0x1199, 0x68c0, 10)}, /* Sierra Wireless MC7304/MC7354 */
+ {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */
+ {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */
+ {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */
+ {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */
+ {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */
+ {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */
+ {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */
+ {QMI_FIXED_INTF(0x1199, 0x9055, 8)}, /* Netgear AirCard 341U */
+ {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */
+ {QMI_FIXED_INTF(0x1199, 0x9057, 8)},
+ {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */
+ {QMI_FIXED_INTF(0x1199, 0x9070, 8)}, /* Sierra Wireless MC74xx/EM74xx */
+ {QMI_FIXED_INTF(0x1199, 0x9070, 10)}, /* Sierra Wireless MC74xx/EM74xx */
+ {QMI_FIXED_INTF(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */
+ {QMI_FIXED_INTF(0x1199, 0x9071, 10)}, /* Sierra Wireless MC74xx */
+ {QMI_FIXED_INTF(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */
+ {QMI_FIXED_INTF(0x1199, 0x9079, 10)}, /* Sierra Wireless EM74xx */
+ {QMI_FIXED_INTF(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */
+ {QMI_FIXED_INTF(0x1199, 0x907b, 10)}, /* Sierra Wireless EM74xx */
+ {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
+ {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */
+ {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */
+ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
+ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
+ {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */
+ {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */
+ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */
+ {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */
+ {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */
+ {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
+ {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
+ {QMI_FIXED_INTF(0x1e0e, 0x9001, 5)}, /* SIMCom 7230E */
+
+ /* 4. Gobi 1000 devices */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
+ {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
+ {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa002)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa003)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa004)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa005)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa006)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x1410, 0xa007)}, /* Novatel Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
+ {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
+
+ /* 5. Gobi 2000 and 3000 devices */
+ {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
+ {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
+ {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
+ {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
+ {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
+ {QMI_GOBI_DEVICE(0x0af0, 0x8120)}, /* Option GTM681W */
+ {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
+ {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
+ {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
+ {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
+ {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
+ {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
+ {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
+ {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */
+ {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
+ {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
+ {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
+ {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */
+ {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */
+
+ { } /* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static bool quectel_ec20_detected(struct usb_interface *intf)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+
+ if (dev->actconfig &&
+ le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 &&
+ le16_to_cpu(dev->descriptor.idProduct) == 0x9215 &&
+ dev->actconfig->desc.bNumInterfaces == 5)
+ return true;
+
+ return false;
+}
+
+static int qmi_wwan_probe(struct usb_interface *intf,
+ const struct usb_device_id *prod)
+{
+ struct usb_device_id *id = (struct usb_device_id *)prod;
+ struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
+
+ /* Workaround to enable dynamic IDs. This disables usbnet
+ * blacklisting functionality. Which, if required, can be
+ * reimplemented here by using a magic "blacklist" value
+ * instead of 0 in the static device id table
+ */
+ if (!id->driver_info) {
+ dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
+ id->driver_info = (unsigned long)&qmi_wwan_info;
+ }
+
+ /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */
+ if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) {
+ dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n");
+ return -ENODEV;
+ }
+
+ return usbnet_probe(intf, id);
+}
+
+static struct usb_driver qmi_wwan_driver = {
+ .name = "qmi_wwan",
+ .id_table = products,
+ .probe = qmi_wwan_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = qmi_wwan_suspend,
+ .resume = qmi_wwan_resume,
+ .reset_resume = qmi_wwan_resume,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(qmi_wwan_driver);
+
+MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
+MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
new file mode 100644
index 0000000..1c27e6f
--- /dev/null
+++ b/drivers/net/usb/r8152.c
@@ -0,0 +1,4362 @@
+/*
+ * Copyright (c) 2014 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/if_vlan.h>
+#include <linux/uaccess.h>
+#include <linux/list.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <net/ip6_checksum.h>
+#include <uapi/linux/mdio.h>
+#include <linux/mdio.h>
+#include <linux/usb/cdc.h>
+
+/* Information for net-next */
+#define NETNEXT_VERSION "08"
+
+/* Information for net */
+#define NET_VERSION "2"
+
+#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION
+#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
+#define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
+#define MODULENAME "r8152"
+
+#define R8152_PHY_ID 32
+
+#define PLA_IDR 0xc000
+#define PLA_RCR 0xc010
+#define PLA_RMS 0xc016
+#define PLA_RXFIFO_CTRL0 0xc0a0
+#define PLA_RXFIFO_CTRL1 0xc0a4
+#define PLA_RXFIFO_CTRL2 0xc0a8
+#define PLA_DMY_REG0 0xc0b0
+#define PLA_FMC 0xc0b4
+#define PLA_CFG_WOL 0xc0b6
+#define PLA_TEREDO_CFG 0xc0bc
+#define PLA_MAR 0xcd00
+#define PLA_BACKUP 0xd000
+#define PAL_BDC_CR 0xd1a0
+#define PLA_TEREDO_TIMER 0xd2cc
+#define PLA_REALWOW_TIMER 0xd2e8
+#define PLA_LEDSEL 0xdd90
+#define PLA_LED_FEATURE 0xdd92
+#define PLA_PHYAR 0xde00
+#define PLA_BOOT_CTRL 0xe004
+#define PLA_GPHY_INTR_IMR 0xe022
+#define PLA_EEE_CR 0xe040
+#define PLA_EEEP_CR 0xe080
+#define PLA_MAC_PWR_CTRL 0xe0c0
+#define PLA_MAC_PWR_CTRL2 0xe0ca
+#define PLA_MAC_PWR_CTRL3 0xe0cc
+#define PLA_MAC_PWR_CTRL4 0xe0ce
+#define PLA_WDT6_CTRL 0xe428
+#define PLA_TCR0 0xe610
+#define PLA_TCR1 0xe612
+#define PLA_MTPS 0xe615
+#define PLA_TXFIFO_CTRL 0xe618
+#define PLA_RSTTALLY 0xe800
+#define PLA_CR 0xe813
+#define PLA_CRWECR 0xe81c
+#define PLA_CONFIG12 0xe81e /* CONFIG1, CONFIG2 */
+#define PLA_CONFIG34 0xe820 /* CONFIG3, CONFIG4 */
+#define PLA_CONFIG5 0xe822
+#define PLA_PHY_PWR 0xe84c
+#define PLA_OOB_CTRL 0xe84f
+#define PLA_CPCR 0xe854
+#define PLA_MISC_0 0xe858
+#define PLA_MISC_1 0xe85a
+#define PLA_OCP_GPHY_BASE 0xe86c
+#define PLA_TALLYCNT 0xe890
+#define PLA_SFF_STS_7 0xe8de
+#define PLA_PHYSTATUS 0xe908
+#define PLA_BP_BA 0xfc26
+#define PLA_BP_0 0xfc28
+#define PLA_BP_1 0xfc2a
+#define PLA_BP_2 0xfc2c
+#define PLA_BP_3 0xfc2e
+#define PLA_BP_4 0xfc30
+#define PLA_BP_5 0xfc32
+#define PLA_BP_6 0xfc34
+#define PLA_BP_7 0xfc36
+#define PLA_BP_EN 0xfc38
+
+#define USB_USB2PHY 0xb41e
+#define USB_SSPHYLINK2 0xb428
+#define USB_U2P3_CTRL 0xb460
+#define USB_CSR_DUMMY1 0xb464
+#define USB_CSR_DUMMY2 0xb466
+#define USB_DEV_STAT 0xb808
+#define USB_CONNECT_TIMER 0xcbf8
+#define USB_BURST_SIZE 0xcfc0
+#define USB_USB_CTRL 0xd406
+#define USB_PHY_CTRL 0xd408
+#define USB_TX_AGG 0xd40a
+#define USB_RX_BUF_TH 0xd40c
+#define USB_USB_TIMER 0xd428
+#define USB_RX_EARLY_TIMEOUT 0xd42c
+#define USB_RX_EARLY_SIZE 0xd42e
+#define USB_PM_CTRL_STATUS 0xd432
+#define USB_TX_DMA 0xd434
+#define USB_TOLERANCE 0xd490
+#define USB_LPM_CTRL 0xd41a
+#define USB_UPS_CTRL 0xd800
+#define USB_MISC_0 0xd81a
+#define USB_POWER_CUT 0xd80a
+#define USB_AFE_CTRL2 0xd824
+#define USB_WDT11_CTRL 0xe43c
+#define USB_BP_BA 0xfc26
+#define USB_BP_0 0xfc28
+#define USB_BP_1 0xfc2a
+#define USB_BP_2 0xfc2c
+#define USB_BP_3 0xfc2e
+#define USB_BP_4 0xfc30
+#define USB_BP_5 0xfc32
+#define USB_BP_6 0xfc34
+#define USB_BP_7 0xfc36
+#define USB_BP_EN 0xfc38
+
+/* OCP Registers */
+#define OCP_ALDPS_CONFIG 0x2010
+#define OCP_EEE_CONFIG1 0x2080
+#define OCP_EEE_CONFIG2 0x2092
+#define OCP_EEE_CONFIG3 0x2094
+#define OCP_BASE_MII 0xa400
+#define OCP_EEE_AR 0xa41a
+#define OCP_EEE_DATA 0xa41c
+#define OCP_PHY_STATUS 0xa420
+#define OCP_POWER_CFG 0xa430
+#define OCP_EEE_CFG 0xa432
+#define OCP_SRAM_ADDR 0xa436
+#define OCP_SRAM_DATA 0xa438
+#define OCP_DOWN_SPEED 0xa442
+#define OCP_EEE_ABLE 0xa5c4
+#define OCP_EEE_ADV 0xa5d0
+#define OCP_EEE_LPABLE 0xa5d2
+#define OCP_PHY_STATE 0xa708 /* nway state for 8153 */
+#define OCP_ADC_CFG 0xbc06
+
+/* SRAM Register */
+#define SRAM_LPF_CFG 0x8012
+#define SRAM_10M_AMP1 0x8080
+#define SRAM_10M_AMP2 0x8082
+#define SRAM_IMPEDANCE 0x8084
+
+/* PLA_RCR */
+#define RCR_AAP 0x00000001
+#define RCR_APM 0x00000002
+#define RCR_AM 0x00000004
+#define RCR_AB 0x00000008
+#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
+
+/* PLA_RXFIFO_CTRL0 */
+#define RXFIFO_THR1_NORMAL 0x00080002
+#define RXFIFO_THR1_OOB 0x01800003
+
+/* PLA_RXFIFO_CTRL1 */
+#define RXFIFO_THR2_FULL 0x00000060
+#define RXFIFO_THR2_HIGH 0x00000038
+#define RXFIFO_THR2_OOB 0x0000004a
+#define RXFIFO_THR2_NORMAL 0x00a0
+
+/* PLA_RXFIFO_CTRL2 */
+#define RXFIFO_THR3_FULL 0x00000078
+#define RXFIFO_THR3_HIGH 0x00000048
+#define RXFIFO_THR3_OOB 0x0000005a
+#define RXFIFO_THR3_NORMAL 0x0110
+
+/* PLA_TXFIFO_CTRL */
+#define TXFIFO_THR_NORMAL 0x00400008
+#define TXFIFO_THR_NORMAL2 0x01000008
+
+/* PLA_DMY_REG0 */
+#define ECM_ALDPS 0x0002
+
+/* PLA_FMC */
+#define FMC_FCR_MCU_EN 0x0001
+
+/* PLA_EEEP_CR */
+#define EEEP_CR_EEEP_TX 0x0002
+
+/* PLA_WDT6_CTRL */
+#define WDT6_SET_MODE 0x0010
+
+/* PLA_TCR0 */
+#define TCR0_TX_EMPTY 0x0800
+#define TCR0_AUTO_FIFO 0x0080
+
+/* PLA_TCR1 */
+#define VERSION_MASK 0x7cf0
+
+/* PLA_MTPS */
+#define MTPS_JUMBO (12 * 1024 / 64)
+#define MTPS_DEFAULT (6 * 1024 / 64)
+
+/* PLA_RSTTALLY */
+#define TALLY_RESET 0x0001
+
+/* PLA_CR */
+#define CR_RST 0x10
+#define CR_RE 0x08
+#define CR_TE 0x04
+
+/* PLA_CRWECR */
+#define CRWECR_NORAML 0x00
+#define CRWECR_CONFIG 0xc0
+
+/* PLA_OOB_CTRL */
+#define NOW_IS_OOB 0x80
+#define TXFIFO_EMPTY 0x20
+#define RXFIFO_EMPTY 0x10
+#define LINK_LIST_READY 0x02
+#define DIS_MCU_CLROOB 0x01
+#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
+
+/* PLA_MISC_1 */
+#define RXDY_GATED_EN 0x0008
+
+/* PLA_SFF_STS_7 */
+#define RE_INIT_LL 0x8000
+#define MCU_BORW_EN 0x4000
+
+/* PLA_CPCR */
+#define CPCR_RX_VLAN 0x0040
+
+/* PLA_CFG_WOL */
+#define MAGIC_EN 0x0001
+
+/* PLA_TEREDO_CFG */
+#define TEREDO_SEL 0x8000
+#define TEREDO_WAKE_MASK 0x7f00
+#define TEREDO_RS_EVENT_MASK 0x00fe
+#define OOB_TEREDO_EN 0x0001
+
+/* PAL_BDC_CR */
+#define ALDPS_PROXY_MODE 0x0001
+
+/* PLA_CONFIG34 */
+#define LINK_ON_WAKE_EN 0x0010
+#define LINK_OFF_WAKE_EN 0x0008
+
+/* PLA_CONFIG5 */
+#define BWF_EN 0x0040
+#define MWF_EN 0x0020
+#define UWF_EN 0x0010
+#define LAN_WAKE_EN 0x0002
+
+/* PLA_LED_FEATURE */
+#define LED_MODE_MASK 0x0700
+
+/* PLA_PHY_PWR */
+#define TX_10M_IDLE_EN 0x0080
+#define PFM_PWM_SWITCH 0x0040
+
+/* PLA_MAC_PWR_CTRL */
+#define D3_CLK_GATED_EN 0x00004000
+#define MCU_CLK_RATIO 0x07010f07
+#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
+#define ALDPS_SPDWN_RATIO 0x0f87
+
+/* PLA_MAC_PWR_CTRL2 */
+#define EEE_SPDWN_RATIO 0x8007
+
+/* PLA_MAC_PWR_CTRL3 */
+#define PKT_AVAIL_SPDWN_EN 0x0100
+#define SUSPEND_SPDWN_EN 0x0004
+#define U1U2_SPDWN_EN 0x0002
+#define L1_SPDWN_EN 0x0001
+
+/* PLA_MAC_PWR_CTRL4 */
+#define PWRSAVE_SPDWN_EN 0x1000
+#define RXDV_SPDWN_EN 0x0800
+#define TX10MIDLE_EN 0x0100
+#define TP100_SPDWN_EN 0x0020
+#define TP500_SPDWN_EN 0x0010
+#define TP1000_SPDWN_EN 0x0008
+#define EEE_SPDWN_EN 0x0001
+
+/* PLA_GPHY_INTR_IMR */
+#define GPHY_STS_MSK 0x0001
+#define SPEED_DOWN_MSK 0x0002
+#define SPDWN_RXDV_MSK 0x0004
+#define SPDWN_LINKCHG_MSK 0x0008
+
+/* PLA_PHYAR */
+#define PHYAR_FLAG 0x80000000
+
+/* PLA_EEE_CR */
+#define EEE_RX_EN 0x0001
+#define EEE_TX_EN 0x0002
+
+/* PLA_BOOT_CTRL */
+#define AUTOLOAD_DONE 0x0002
+
+/* USB_USB2PHY */
+#define USB2PHY_SUSPEND 0x0001
+#define USB2PHY_L1 0x0002
+
+/* USB_SSPHYLINK2 */
+#define pwd_dn_scale_mask 0x3ffe
+#define pwd_dn_scale(x) ((x) << 1)
+
+/* USB_CSR_DUMMY1 */
+#define DYNAMIC_BURST 0x0001
+
+/* USB_CSR_DUMMY2 */
+#define EP4_FULL_FC 0x0001
+
+/* USB_DEV_STAT */
+#define STAT_SPEED_MASK 0x0006
+#define STAT_SPEED_HIGH 0x0000
+#define STAT_SPEED_FULL 0x0002
+
+/* USB_TX_AGG */
+#define TX_AGG_MAX_THRESHOLD 0x03
+
+/* USB_RX_BUF_TH */
+#define RX_THR_SUPPER 0x0c350180
+#define RX_THR_HIGH 0x7a120180
+#define RX_THR_SLOW 0xffff0180
+
+/* USB_TX_DMA */
+#define TEST_MODE_DISABLE 0x00000001
+#define TX_SIZE_ADJUST1 0x00000100
+
+/* USB_UPS_CTRL */
+#define POWER_CUT 0x0100
+
+/* USB_PM_CTRL_STATUS */
+#define RESUME_INDICATE 0x0001
+
+/* USB_USB_CTRL */
+#define RX_AGG_DISABLE 0x0010
+#define RX_ZERO_EN 0x0080
+
+/* USB_U2P3_CTRL */
+#define U2P3_ENABLE 0x0001
+
+/* USB_POWER_CUT */
+#define PWR_EN 0x0001
+#define PHASE2_EN 0x0008
+
+/* USB_MISC_0 */
+#define PCUT_STATUS 0x0001
+
+/* USB_RX_EARLY_TIMEOUT */
+#define COALESCE_SUPER 85000U
+#define COALESCE_HIGH 250000U
+#define COALESCE_SLOW 524280U
+
+/* USB_WDT11_CTRL */
+#define TIMER11_EN 0x0001
+
+/* USB_LPM_CTRL */
+/* bit 4 ~ 5: fifo empty boundary */
+#define FIFO_EMPTY_1FB 0x30 /* 0x1fb * 64 = 32448 bytes */
+/* bit 2 ~ 3: LMP timer */
+#define LPM_TIMER_MASK 0x0c
+#define LPM_TIMER_500MS 0x04 /* 500 ms */
+#define LPM_TIMER_500US 0x0c /* 500 us */
+#define ROK_EXIT_LPM 0x02
+
+/* USB_AFE_CTRL2 */
+#define SEN_VAL_MASK 0xf800
+#define SEN_VAL_NORMAL 0xa000
+#define SEL_RXIDLE 0x0100
+
+/* OCP_ALDPS_CONFIG */
+#define ENPWRSAVE 0x8000
+#define ENPDNPS 0x0200
+#define LINKENA 0x0100
+#define DIS_SDSAVE 0x0010
+
+/* OCP_PHY_STATUS */
+#define PHY_STAT_MASK 0x0007
+#define PHY_STAT_LAN_ON 3
+#define PHY_STAT_PWRDN 5
+
+/* OCP_POWER_CFG */
+#define EEE_CLKDIV_EN 0x8000
+#define EN_ALDPS 0x0004
+#define EN_10M_PLLOFF 0x0001
+
+/* OCP_EEE_CONFIG1 */
+#define RG_TXLPI_MSK_HFDUP 0x8000
+#define RG_MATCLR_EN 0x4000
+#define EEE_10_CAP 0x2000
+#define EEE_NWAY_EN 0x1000
+#define TX_QUIET_EN 0x0200
+#define RX_QUIET_EN 0x0100
+#define sd_rise_time_mask 0x0070
+#define sd_rise_time(x) (min(x, 7) << 4) /* bit 4 ~ 6 */
+#define RG_RXLPI_MSK_HFDUP 0x0008
+#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
+
+/* OCP_EEE_CONFIG2 */
+#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
+#define RG_DACQUIET_EN 0x0400
+#define RG_LDVQUIET_EN 0x0200
+#define RG_CKRSEL 0x0020
+#define RG_EEEPRG_EN 0x0010
+
+/* OCP_EEE_CONFIG3 */
+#define fast_snr_mask 0xff80
+#define fast_snr(x) (min(x, 0x1ff) << 7) /* bit 7 ~ 15 */
+#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
+#define MSK_PH 0x0006 /* bit 0 ~ 3 */
+
+/* OCP_EEE_AR */
+/* bit[15:14] function */
+#define FUN_ADDR 0x0000
+#define FUN_DATA 0x4000
+/* bit[4:0] device addr */
+
+/* OCP_EEE_CFG */
+#define CTAP_SHORT_EN 0x0040
+#define EEE10_EN 0x0010
+
+/* OCP_DOWN_SPEED */
+#define EN_10M_BGOFF 0x0080
+
+/* OCP_PHY_STATE */
+#define TXDIS_STATE 0x01
+#define ABD_STATE 0x02
+
+/* OCP_ADC_CFG */
+#define CKADSEL_L 0x0100
+#define ADC_EN 0x0080
+#define EN_EMI_L 0x0040
+
+/* SRAM_LPF_CFG */
+#define LPF_AUTO_TUNE 0x8000
+
+/* SRAM_10M_AMP1 */
+#define GDAC_IB_UPALL 0x0008
+
+/* SRAM_10M_AMP2 */
+#define AMP_DN 0x0200
+
+/* SRAM_IMPEDANCE */
+#define RX_DRIVING_MASK 0x6000
+
+enum rtl_register_content {
+ _1000bps = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LINK_STATUS = 0x02,
+ FULL_DUP = 0x01,
+};
+
+#define RTL8152_MAX_TX 4
+#define RTL8152_MAX_RX 10
+#define INTBUFSIZE 2
+#define CRC_SIZE 4
+#define TX_ALIGN 4
+#define RX_ALIGN 8
+
+#define INTR_LINK 0x0004
+
+#define RTL8152_REQT_READ 0xc0
+#define RTL8152_REQT_WRITE 0x40
+#define RTL8152_REQ_GET_REGS 0x05
+#define RTL8152_REQ_SET_REGS 0x05
+
+#define BYTE_EN_DWORD 0xff
+#define BYTE_EN_WORD 0x33
+#define BYTE_EN_BYTE 0x11
+#define BYTE_EN_SIX_BYTES 0x3f
+#define BYTE_EN_START_MASK 0x0f
+#define BYTE_EN_END_MASK 0xf0
+
+#define RTL8153_MAX_PACKET 9216 /* 9K */
+#define RTL8153_MAX_MTU (RTL8153_MAX_PACKET - VLAN_ETH_HLEN - VLAN_HLEN)
+#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
+#define RTL8153_RMS RTL8153_MAX_PACKET
+#define RTL8152_TX_TIMEOUT (5 * HZ)
+#define RTL8152_NAPI_WEIGHT 64
+
+/* rtl8152 flags */
+enum rtl8152_flags {
+ RTL8152_UNPLUG = 0,
+ RTL8152_SET_RX_MODE,
+ WORK_ENABLE,
+ RTL8152_LINK_CHG,
+ SELECTIVE_SUSPEND,
+ PHY_RESET,
+ SCHEDULE_NAPI,
+};
+
+/* Define these values to match your device */
+#define VENDOR_ID_REALTEK 0x0bda
+#define VENDOR_ID_SAMSUNG 0x04e8
+#define VENDOR_ID_LENOVO 0x17ef
+#define VENDOR_ID_NVIDIA 0x0955
+
+#define MCU_TYPE_PLA 0x0100
+#define MCU_TYPE_USB 0x0000
+
+struct tally_counter {
+ __le64 tx_packets;
+ __le64 rx_packets;
+ __le64 tx_errors;
+ __le32 rx_errors;
+ __le16 rx_missed;
+ __le16 align_errors;
+ __le32 tx_one_collision;
+ __le32 tx_multi_collision;
+ __le64 rx_unicast;
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underrun;
+};
+
+struct rx_desc {
+ __le32 opts1;
+#define RX_LEN_MASK 0x7fff
+
+ __le32 opts2;
+#define RD_UDP_CS BIT(23)
+#define RD_TCP_CS BIT(22)
+#define RD_IPV6_CS BIT(20)
+#define RD_IPV4_CS BIT(19)
+
+ __le32 opts3;
+#define IPF BIT(23) /* IP checksum fail */
+#define UDPF BIT(22) /* UDP checksum fail */
+#define TCPF BIT(21) /* TCP checksum fail */
+#define RX_VLAN_TAG BIT(16)
+
+ __le32 opts4;
+ __le32 opts5;
+ __le32 opts6;
+};
+
+struct tx_desc {
+ __le32 opts1;
+#define TX_FS BIT(31) /* First segment of a packet */
+#define TX_LS BIT(30) /* Final segment of a packet */
+#define GTSENDV4 BIT(28)
+#define GTSENDV6 BIT(27)
+#define GTTCPHO_SHIFT 18
+#define GTTCPHO_MAX 0x7fU
+#define TX_LEN_MAX 0x3ffffU
+
+ __le32 opts2;
+#define UDP_CS BIT(31) /* Calculate UDP/IP checksum */
+#define TCP_CS BIT(30) /* Calculate TCP/IP checksum */
+#define IPV4_CS BIT(29) /* Calculate IPv4 checksum */
+#define IPV6_CS BIT(28) /* Calculate IPv6 checksum */
+#define MSS_SHIFT 17
+#define MSS_MAX 0x7ffU
+#define TCPHO_SHIFT 17
+#define TCPHO_MAX 0x7ffU
+#define TX_VLAN_TAG BIT(16)
+};
+
+struct r8152;
+
+struct rx_agg {
+ struct list_head list;
+ struct urb *urb;
+ struct r8152 *context;
+ void *buffer;
+ void *head;
+};
+
+struct tx_agg {
+ struct list_head list;
+ struct urb *urb;
+ struct r8152 *context;
+ void *buffer;
+ void *head;
+ u32 skb_num;
+ u32 skb_len;
+};
+
+struct r8152 {
+ unsigned long flags;
+ struct usb_device *udev;
+ struct napi_struct napi;
+ struct usb_interface *intf;
+ struct net_device *netdev;
+ struct urb *intr_urb;
+ struct tx_agg tx_info[RTL8152_MAX_TX];
+ struct rx_agg rx_info[RTL8152_MAX_RX];
+ struct list_head rx_done, tx_free;
+ struct sk_buff_head tx_queue, rx_queue;
+ spinlock_t rx_lock, tx_lock;
+ struct delayed_work schedule;
+ struct mii_if_info mii;
+ struct mutex control; /* use for hw setting */
+
+ struct rtl_ops {
+ void (*init)(struct r8152 *);
+ int (*enable)(struct r8152 *);
+ void (*disable)(struct r8152 *);
+ void (*up)(struct r8152 *);
+ void (*down)(struct r8152 *);
+ void (*unload)(struct r8152 *);
+ int (*eee_get)(struct r8152 *, struct ethtool_eee *);
+ int (*eee_set)(struct r8152 *, struct ethtool_eee *);
+ bool (*in_nway)(struct r8152 *);
+ } rtl_ops;
+
+ int intr_interval;
+ u32 saved_wolopts;
+ u32 msg_enable;
+ u32 tx_qlen;
+ u32 coalesce;
+ u16 ocp_base;
+ u8 *intr_buff;
+ u8 version;
+};
+
+enum rtl_version {
+ RTL_VER_UNKNOWN = 0,
+ RTL_VER_01,
+ RTL_VER_02,
+ RTL_VER_03,
+ RTL_VER_04,
+ RTL_VER_05,
+ RTL_VER_06,
+ RTL_VER_MAX
+};
+
+enum tx_csum_stat {
+ TX_CSUM_SUCCESS = 0,
+ TX_CSUM_TSO,
+ TX_CSUM_NONE
+};
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ * The RTL chips use a 64 element hash table based on the Ethernet CRC.
+ */
+static const int multicast_filter_limit = 32;
+static unsigned int agg_buf_sz = 16384;
+
+#define RTL_LIMITED_TSO_SIZE (agg_buf_sz - sizeof(struct tx_desc) - \
+ VLAN_ETH_HLEN - VLAN_HLEN)
+
+static
+int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ int ret;
+ void *tmp;
+
+ tmp = kmalloc(size, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
+ RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
+ value, index, tmp, size, 500);
+
+ memcpy(data, tmp, size);
+ kfree(tmp);
+
+ return ret;
+}
+
+static
+int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+{
+ int ret;
+ void *tmp;
+
+ tmp = kmemdup(data, size, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
+ RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
+ value, index, tmp, size, 500);
+
+ kfree(tmp);
+
+ return ret;
+}
+
+static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
+ void *data, u16 type)
+{
+ u16 limit = 64;
+ int ret = 0;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ while (size) {
+ if (size > limit) {
+ ret = get_registers(tp, index, type, limit, data);
+ if (ret < 0)
+ break;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = get_registers(tp, index, type, size, data);
+ if (ret < 0)
+ break;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ if (ret == -ENODEV)
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+
+ return ret;
+}
+
+static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+ u16 size, void *data, u16 type)
+{
+ int ret;
+ u16 byteen_start, byteen_end, byen;
+ u16 limit = 512;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ /* both size and indix must be 4 bytes align */
+ if ((size & 3) || !size || (index & 3) || !data)
+ return -EPERM;
+
+ if ((u32)index + (u32)size > 0xffff)
+ return -EPERM;
+
+ byteen_start = byteen & BYTE_EN_START_MASK;
+ byteen_end = byteen & BYTE_EN_END_MASK;
+
+ byen = byteen_start | (byteen_start << 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+
+ index += 4;
+ data += 4;
+ size -= 4;
+
+ if (size) {
+ size -= 4;
+
+ while (size) {
+ if (size > limit) {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ limit, data);
+ if (ret < 0)
+ goto error1;
+
+ index += limit;
+ data += limit;
+ size -= limit;
+ } else {
+ ret = set_registers(tp, index,
+ type | BYTE_EN_DWORD,
+ size, data);
+ if (ret < 0)
+ goto error1;
+
+ index += size;
+ data += size;
+ size = 0;
+ break;
+ }
+ }
+
+ byen = byteen_end | (byteen_end >> 4);
+ ret = set_registers(tp, index, type | byen, 4, data);
+ if (ret < 0)
+ goto error1;
+ }
+
+error1:
+ if (ret == -ENODEV)
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+
+ return ret;
+}
+
+static inline
+int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
+}
+
+static inline
+int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
+{
+ return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
+}
+
+static inline
+int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
+{
+ return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
+}
+
+static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
+{
+ __le32 data;
+
+ generic_ocp_read(tp, index, sizeof(data), &data, type);
+
+ return __le32_to_cpu(data);
+}
+
+static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ __le32 tmp = __cpu_to_le32(data);
+
+ generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
+}
+
+static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ __le32 tmp;
+ u8 shift = index & 2;
+
+ index &= ~3;
+
+ generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
+
+ data = __le32_to_cpu(tmp);
+ data >>= (shift * 8);
+ data &= 0xffff;
+
+ return (u16)data;
+}
+
+static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 mask = 0xffff;
+ __le32 tmp;
+ u16 byen = BYTE_EN_WORD;
+ u8 shift = index & 2;
+
+ data &= mask;
+
+ if (index & 2) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ tmp = __cpu_to_le32(data);
+
+ generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
+}
+
+static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
+{
+ u32 data;
+ __le32 tmp;
+ u8 shift = index & 3;
+
+ index &= ~3;
+
+ generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
+
+ data = __le32_to_cpu(tmp);
+ data >>= (shift * 8);
+ data &= 0xff;
+
+ return (u8)data;
+}
+
+static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
+{
+ u32 mask = 0xff;
+ __le32 tmp;
+ u16 byen = BYTE_EN_BYTE;
+ u8 shift = index & 3;
+
+ data &= mask;
+
+ if (index & 3) {
+ byen <<= shift;
+ mask <<= (shift * 8);
+ data <<= (shift * 8);
+ index &= ~3;
+ }
+
+ tmp = __cpu_to_le32(data);
+
+ generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
+}
+
+static u16 ocp_reg_read(struct r8152 *tp, u16 addr)
+{
+ u16 ocp_base, ocp_index;
+
+ ocp_base = addr & 0xf000;
+ if (ocp_base != tp->ocp_base) {
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
+ tp->ocp_base = ocp_base;
+ }
+
+ ocp_index = (addr & 0x0fff) | 0xb000;
+ return ocp_read_word(tp, MCU_TYPE_PLA, ocp_index);
+}
+
+static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
+{
+ u16 ocp_base, ocp_index;
+
+ ocp_base = addr & 0xf000;
+ if (ocp_base != tp->ocp_base) {
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
+ tp->ocp_base = ocp_base;
+ }
+
+ ocp_index = (addr & 0x0fff) | 0xb000;
+ ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
+}
+
+static inline void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
+{
+ ocp_reg_write(tp, OCP_BASE_MII + reg_addr * 2, value);
+}
+
+static inline int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
+{
+ return ocp_reg_read(tp, OCP_BASE_MII + reg_addr * 2);
+}
+
+static void sram_write(struct r8152 *tp, u16 addr, u16 data)
+{
+ ocp_reg_write(tp, OCP_SRAM_ADDR, addr);
+ ocp_reg_write(tp, OCP_SRAM_DATA, data);
+}
+
+static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int ret;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ if (phy_id != R8152_PHY_ID)
+ return -EINVAL;
+
+ ret = r8152_mdio_read(tp, reg);
+
+ return ret;
+}
+
+static
+void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ if (phy_id != R8152_PHY_ID)
+ return;
+
+ r8152_mdio_write(tp, reg, val);
+}
+
+static int
+r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
+
+static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+ int ret = -EADDRNOTAVAIL;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ goto out1;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out1;
+
+ mutex_lock(&tp->control);
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
+ pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+out1:
+ return ret;
+}
+
+static int set_ethernet_addr(struct r8152 *tp)
+{
+ struct net_device *dev = tp->netdev;
+ struct sockaddr sa;
+ int ret;
+
+ if (tp->version == RTL_VER_01)
+ ret = pla_ocp_read(tp, PLA_IDR, 8, sa.sa_data);
+ else
+ ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa.sa_data);
+
+ if (ret < 0) {
+ netif_err(tp, probe, dev, "Get ether addr fail\n");
+ } else if (!is_valid_ether_addr(sa.sa_data)) {
+ netif_err(tp, probe, dev, "Invalid ether addr %pM\n",
+ sa.sa_data);
+ eth_hw_addr_random(dev);
+ ether_addr_copy(sa.sa_data, dev->dev_addr);
+ ret = rtl8152_set_mac_address(dev, &sa);
+ netif_info(tp, probe, dev, "Random ether addr %pM\n",
+ sa.sa_data);
+ } else {
+ if (tp->version == RTL_VER_01)
+ ether_addr_copy(dev->dev_addr, sa.sa_data);
+ else
+ ret = rtl8152_set_mac_address(dev, &sa);
+ }
+
+ return ret;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ struct net_device *netdev;
+ int status = urb->status;
+ struct rx_agg *agg;
+ struct r8152 *tp;
+
+ agg = urb->context;
+ if (!agg)
+ return;
+
+ tp = agg->context;
+ if (!tp)
+ return;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ netdev = tp->netdev;
+
+ /* When link down, the driver would cancel all bulks. */
+ /* This avoid the re-submitting bulk */
+ if (!netif_carrier_ok(netdev))
+ return;
+
+ usb_mark_last_busy(tp->udev);
+
+ switch (status) {
+ case 0:
+ if (urb->actual_length < ETH_ZLEN)
+ break;
+
+ spin_lock(&tp->rx_lock);
+ list_add_tail(&agg->list, &tp->rx_done);
+ spin_unlock(&tp->rx_lock);
+ napi_schedule(&tp->napi);
+ return;
+ case -ESHUTDOWN:
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(tp->netdev);
+ return;
+ case -ENOENT:
+ return; /* the urb is in unlink state */
+ case -ETIME:
+ if (net_ratelimit())
+ netdev_warn(netdev, "maybe reset is needed?\n");
+ break;
+ default:
+ if (net_ratelimit())
+ netdev_warn(netdev, "Rx status %d\n", status);
+ break;
+ }
+
+ r8152_submit_rx(tp, agg, GFP_ATOMIC);
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ struct net_device_stats *stats;
+ struct net_device *netdev;
+ struct tx_agg *agg;
+ struct r8152 *tp;
+ int status = urb->status;
+
+ agg = urb->context;
+ if (!agg)
+ return;
+
+ tp = agg->context;
+ if (!tp)
+ return;
+
+ netdev = tp->netdev;
+ stats = &netdev->stats;
+ if (status) {
+ if (net_ratelimit())
+ netdev_warn(netdev, "Tx status %d\n", status);
+ stats->tx_errors += agg->skb_num;
+ } else {
+ stats->tx_packets += agg->skb_num;
+ stats->tx_bytes += agg->skb_len;
+ }
+
+ spin_lock(&tp->tx_lock);
+ list_add_tail(&agg->list, &tp->tx_free);
+ spin_unlock(&tp->tx_lock);
+
+ usb_autopm_put_interface_async(tp->intf);
+
+ if (!netif_carrier_ok(netdev))
+ return;
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ if (!skb_queue_empty(&tp->tx_queue))
+ napi_schedule(&tp->napi);
+}
+
+static void intr_callback(struct urb *urb)
+{
+ struct r8152 *tp;
+ __le16 *d;
+ int status = urb->status;
+ int res;
+
+ tp = urb->context;
+ if (!tp)
+ return;
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ switch (status) {
+ case 0: /* success */
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ESHUTDOWN:
+ netif_device_detach(tp->netdev);
+ case -ENOENT:
+ case -EPROTO:
+ netif_info(tp, intr, tp->netdev,
+ "Stop submitting intr, status %d\n", status);
+ return;
+ case -EOVERFLOW:
+ netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
+ goto resubmit;
+ /* -EPIPE: should clear the halt */
+ default:
+ netif_info(tp, intr, tp->netdev, "intr status %d\n", status);
+ goto resubmit;
+ }
+
+ d = urb->transfer_buffer;
+ if (INTR_LINK & __le16_to_cpu(d[0])) {
+ if (!netif_carrier_ok(tp->netdev)) {
+ set_bit(RTL8152_LINK_CHG, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+ }
+ } else {
+ if (netif_carrier_ok(tp->netdev)) {
+ set_bit(RTL8152_LINK_CHG, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+ }
+ }
+
+resubmit:
+ res = usb_submit_urb(urb, GFP_ATOMIC);
+ if (res == -ENODEV) {
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(tp->netdev);
+ } else if (res) {
+ netif_err(tp, intr, tp->netdev,
+ "can't resubmit intr, status %d\n", res);
+ }
+}
+
+static inline void *rx_agg_align(void *data)
+{
+ return (void *)ALIGN((uintptr_t)data, RX_ALIGN);
+}
+
+static inline void *tx_agg_align(void *data)
+{
+ return (void *)ALIGN((uintptr_t)data, TX_ALIGN);
+}
+
+static void free_all_mem(struct r8152 *tp)
+{
+ int i;
+
+ for (i = 0; i < RTL8152_MAX_RX; i++) {
+ usb_free_urb(tp->rx_info[i].urb);
+ tp->rx_info[i].urb = NULL;
+
+ kfree(tp->rx_info[i].buffer);
+ tp->rx_info[i].buffer = NULL;
+ tp->rx_info[i].head = NULL;
+ }
+
+ for (i = 0; i < RTL8152_MAX_TX; i++) {
+ usb_free_urb(tp->tx_info[i].urb);
+ tp->tx_info[i].urb = NULL;
+
+ kfree(tp->tx_info[i].buffer);
+ tp->tx_info[i].buffer = NULL;
+ tp->tx_info[i].head = NULL;
+ }
+
+ usb_free_urb(tp->intr_urb);
+ tp->intr_urb = NULL;
+
+ kfree(tp->intr_buff);
+ tp->intr_buff = NULL;
+}
+
+static int alloc_all_mem(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+ struct usb_interface *intf = tp->intf;
+ struct usb_host_interface *alt = intf->cur_altsetting;
+ struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
+ struct urb *urb;
+ int node, i;
+ u8 *buf;
+
+ node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
+
+ spin_lock_init(&tp->rx_lock);
+ spin_lock_init(&tp->tx_lock);
+ INIT_LIST_HEAD(&tp->tx_free);
+ skb_queue_head_init(&tp->tx_queue);
+ skb_queue_head_init(&tp->rx_queue);
+
+ for (i = 0; i < RTL8152_MAX_RX; i++) {
+ buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
+ if (!buf)
+ goto err1;
+
+ if (buf != rx_agg_align(buf)) {
+ kfree(buf);
+ buf = kmalloc_node(agg_buf_sz + RX_ALIGN, GFP_KERNEL,
+ node);
+ if (!buf)
+ goto err1;
+ }
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb) {
+ kfree(buf);
+ goto err1;
+ }
+
+ INIT_LIST_HEAD(&tp->rx_info[i].list);
+ tp->rx_info[i].context = tp;
+ tp->rx_info[i].urb = urb;
+ tp->rx_info[i].buffer = buf;
+ tp->rx_info[i].head = rx_agg_align(buf);
+ }
+
+ for (i = 0; i < RTL8152_MAX_TX; i++) {
+ buf = kmalloc_node(agg_buf_sz, GFP_KERNEL, node);
+ if (!buf)
+ goto err1;
+
+ if (buf != tx_agg_align(buf)) {
+ kfree(buf);
+ buf = kmalloc_node(agg_buf_sz + TX_ALIGN, GFP_KERNEL,
+ node);
+ if (!buf)
+ goto err1;
+ }
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb) {
+ kfree(buf);
+ goto err1;
+ }
+
+ INIT_LIST_HEAD(&tp->tx_info[i].list);
+ tp->tx_info[i].context = tp;
+ tp->tx_info[i].urb = urb;
+ tp->tx_info[i].buffer = buf;
+ tp->tx_info[i].head = tx_agg_align(buf);
+
+ list_add_tail(&tp->tx_info[i].list, &tp->tx_free);
+ }
+
+ tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tp->intr_urb)
+ goto err1;
+
+ tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
+ if (!tp->intr_buff)
+ goto err1;
+
+ tp->intr_interval = (int)ep_intr->desc.bInterval;
+ usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3),
+ tp->intr_buff, INTBUFSIZE, intr_callback,
+ tp, tp->intr_interval);
+
+ return 0;
+
+err1:
+ free_all_mem(tp);
+ return -ENOMEM;
+}
+
+static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
+{
+ struct tx_agg *agg = NULL;
+ unsigned long flags;
+
+ if (list_empty(&tp->tx_free))
+ return NULL;
+
+ spin_lock_irqsave(&tp->tx_lock, flags);
+ if (!list_empty(&tp->tx_free)) {
+ struct list_head *cursor;
+
+ cursor = tp->tx_free.next;
+ list_del_init(cursor);
+ agg = list_entry(cursor, struct tx_agg, list);
+ }
+ spin_unlock_irqrestore(&tp->tx_lock, flags);
+
+ return agg;
+}
+
+/* r8152_csum_workaround()
+ * The hw limites the value the transport offset. When the offset is out of the
+ * range, calculate the checksum by sw.
+ */
+static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
+ struct sk_buff_head *list)
+{
+ if (skb_shinfo(skb)->gso_size) {
+ netdev_features_t features = tp->netdev->features;
+ struct sk_buff_head seg_list;
+ struct sk_buff *segs, *nskb;
+
+ features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
+ segs = skb_gso_segment(skb, features);
+ if (IS_ERR(segs) || !segs)
+ goto drop;
+
+ __skb_queue_head_init(&seg_list);
+
+ do {
+ nskb = segs;
+ segs = segs->next;
+ nskb->next = NULL;
+ __skb_queue_tail(&seg_list, nskb);
+ } while (segs);
+
+ skb_queue_splice(&seg_list, list);
+ dev_kfree_skb(skb);
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ if (skb_checksum_help(skb) < 0)
+ goto drop;
+
+ __skb_queue_head(list, skb);
+ } else {
+ struct net_device_stats *stats;
+
+drop:
+ stats = &tp->netdev->stats;
+ stats->tx_dropped++;
+ dev_kfree_skb(skb);
+ }
+}
+
+/* msdn_giant_send_check()
+ * According to the document of microsoft, the TCP Pseudo Header excludes the
+ * packet length for IPv6 TCP large packets.
+ */
+static int msdn_giant_send_check(struct sk_buff *skb)
+{
+ const struct ipv6hdr *ipv6h;
+ struct tcphdr *th;
+ int ret;
+
+ ret = skb_cow_head(skb, 0);
+ if (ret)
+ return ret;
+
+ ipv6h = ipv6_hdr(skb);
+ th = tcp_hdr(skb);
+
+ th->check = 0;
+ th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
+
+ return ret;
+}
+
+static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
+{
+ if (skb_vlan_tag_present(skb)) {
+ u32 opts2;
+
+ opts2 = TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb));
+ desc->opts2 |= cpu_to_le32(opts2);
+ }
+}
+
+static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+
+ if (opts2 & RX_VLAN_TAG)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+ swab16(opts2 & 0xffff));
+}
+
+static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
+ struct sk_buff *skb, u32 len, u32 transport_offset)
+{
+ u32 mss = skb_shinfo(skb)->gso_size;
+ u32 opts1, opts2 = 0;
+ int ret = TX_CSUM_SUCCESS;
+
+ WARN_ON_ONCE(len > TX_LEN_MAX);
+
+ opts1 = len | TX_FS | TX_LS;
+
+ if (mss) {
+ if (transport_offset > GTTCPHO_MAX) {
+ netif_warn(tp, tx_err, tp->netdev,
+ "Invalid transport offset 0x%x for TSO\n",
+ transport_offset);
+ ret = TX_CSUM_TSO;
+ goto unavailable;
+ }
+
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
+ opts1 |= GTSENDV4;
+ break;
+
+ case htons(ETH_P_IPV6):
+ if (msdn_giant_send_check(skb)) {
+ ret = TX_CSUM_TSO;
+ goto unavailable;
+ }
+ opts1 |= GTSENDV6;
+ break;
+
+ default:
+ WARN_ON_ONCE(1);
+ break;
+ }
+
+ opts1 |= transport_offset << GTTCPHO_SHIFT;
+ opts2 |= min(mss, MSS_MAX) << MSS_SHIFT;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ u8 ip_protocol;
+
+ if (transport_offset > TCPHO_MAX) {
+ netif_warn(tp, tx_err, tp->netdev,
+ "Invalid transport offset 0x%x\n",
+ transport_offset);
+ ret = TX_CSUM_NONE;
+ goto unavailable;
+ }
+
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
+ opts2 |= IPV4_CS;
+ ip_protocol = ip_hdr(skb)->protocol;
+ break;
+
+ case htons(ETH_P_IPV6):
+ opts2 |= IPV6_CS;
+ ip_protocol = ipv6_hdr(skb)->nexthdr;
+ break;
+
+ default:
+ ip_protocol = IPPROTO_RAW;
+ break;
+ }
+
+ if (ip_protocol == IPPROTO_TCP)
+ opts2 |= TCP_CS;
+ else if (ip_protocol == IPPROTO_UDP)
+ opts2 |= UDP_CS;
+ else
+ WARN_ON_ONCE(1);
+
+ opts2 |= transport_offset << TCPHO_SHIFT;
+ }
+
+ desc->opts2 = cpu_to_le32(opts2);
+ desc->opts1 = cpu_to_le32(opts1);
+
+unavailable:
+ return ret;
+}
+
+static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
+{
+ struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
+ int remain, ret;
+ u8 *tx_data;
+
+ __skb_queue_head_init(&skb_head);
+ spin_lock(&tx_queue->lock);
+ skb_queue_splice_init(tx_queue, &skb_head);
+ spin_unlock(&tx_queue->lock);
+
+ tx_data = agg->head;
+ agg->skb_num = 0;
+ agg->skb_len = 0;
+ remain = agg_buf_sz;
+
+ while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
+ struct tx_desc *tx_desc;
+ struct sk_buff *skb;
+ unsigned int len;
+ u32 offset;
+
+ skb = __skb_dequeue(&skb_head);
+ if (!skb)
+ break;
+
+ len = skb->len + sizeof(*tx_desc);
+
+ if (len > remain) {
+ __skb_queue_head(&skb_head, skb);
+ break;
+ }
+
+ tx_data = tx_agg_align(tx_data);
+ tx_desc = (struct tx_desc *)tx_data;
+
+ offset = (u32)skb_transport_offset(skb);
+
+ if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) {
+ r8152_csum_workaround(tp, skb, &skb_head);
+ continue;
+ }
+
+ rtl_tx_vlan_tag(tx_desc, skb);
+
+ tx_data += sizeof(*tx_desc);
+
+ len = skb->len;
+ if (skb_copy_bits(skb, 0, tx_data, len) < 0) {
+ struct net_device_stats *stats = &tp->netdev->stats;
+
+ stats->tx_dropped++;
+ dev_kfree_skb_any(skb);
+ tx_data -= sizeof(*tx_desc);
+ continue;
+ }
+
+ tx_data += len;
+ agg->skb_len += len;
+ agg->skb_num++;
+
+ dev_kfree_skb_any(skb);
+
+ remain = agg_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
+ }
+
+ if (!skb_queue_empty(&skb_head)) {
+ spin_lock(&tx_queue->lock);
+ skb_queue_splice(&skb_head, tx_queue);
+ spin_unlock(&tx_queue->lock);
+ }
+
+ netif_tx_lock(tp->netdev);
+
+ if (netif_queue_stopped(tp->netdev) &&
+ skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
+ netif_wake_queue(tp->netdev);
+
+ netif_tx_unlock(tp->netdev);
+
+ ret = usb_autopm_get_interface_async(tp->intf);
+ if (ret < 0)
+ goto out_tx_fill;
+
+ usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
+ agg->head, (int)(tx_data - (u8 *)agg->head),
+ (usb_complete_t)write_bulk_callback, agg);
+
+ ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
+ if (ret < 0)
+ usb_autopm_put_interface_async(tp->intf);
+
+out_tx_fill:
+ return ret;
+}
+
+static u8 r8152_rx_csum(struct r8152 *tp, struct rx_desc *rx_desc)
+{
+ u8 checksum = CHECKSUM_NONE;
+ u32 opts2, opts3;
+
+ if (!(tp->netdev->features & NETIF_F_RXCSUM))
+ goto return_result;
+
+ opts2 = le32_to_cpu(rx_desc->opts2);
+ opts3 = le32_to_cpu(rx_desc->opts3);
+
+ if (opts2 & RD_IPV4_CS) {
+ if (opts3 & IPF)
+ checksum = CHECKSUM_NONE;
+ else if ((opts2 & RD_UDP_CS) && (opts3 & UDPF))
+ checksum = CHECKSUM_NONE;
+ else if ((opts2 & RD_TCP_CS) && (opts3 & TCPF))
+ checksum = CHECKSUM_NONE;
+ else
+ checksum = CHECKSUM_UNNECESSARY;
+ } else if (RD_IPV6_CS) {
+ if ((opts2 & RD_UDP_CS) && !(opts3 & UDPF))
+ checksum = CHECKSUM_UNNECESSARY;
+ else if ((opts2 & RD_TCP_CS) && !(opts3 & TCPF))
+ checksum = CHECKSUM_UNNECESSARY;
+ }
+
+return_result:
+ return checksum;
+}
+
+static int rx_bottom(struct r8152 *tp, int budget)
+{
+ unsigned long flags;
+ struct list_head *cursor, *next, rx_queue;
+ int ret = 0, work_done = 0;
+
+ if (!skb_queue_empty(&tp->rx_queue)) {
+ while (work_done < budget) {
+ struct sk_buff *skb = __skb_dequeue(&tp->rx_queue);
+ struct net_device *netdev = tp->netdev;
+ struct net_device_stats *stats = &netdev->stats;
+ unsigned int pkt_len;
+
+ if (!skb)
+ break;
+
+ pkt_len = skb->len;
+ napi_gro_receive(&tp->napi, skb);
+ work_done++;
+ stats->rx_packets++;
+ stats->rx_bytes += pkt_len;
+ }
+ }
+
+ if (list_empty(&tp->rx_done))
+ goto out1;
+
+ INIT_LIST_HEAD(&rx_queue);
+ spin_lock_irqsave(&tp->rx_lock, flags);
+ list_splice_init(&tp->rx_done, &rx_queue);
+ spin_unlock_irqrestore(&tp->rx_lock, flags);
+
+ list_for_each_safe(cursor, next, &rx_queue) {
+ struct rx_desc *rx_desc;
+ struct rx_agg *agg;
+ int len_used = 0;
+ struct urb *urb;
+ u8 *rx_data;
+
+ list_del_init(cursor);
+
+ agg = list_entry(cursor, struct rx_agg, list);
+ urb = agg->urb;
+ if (urb->actual_length < ETH_ZLEN)
+ goto submit;
+
+ rx_desc = agg->head;
+ rx_data = agg->head;
+ len_used += sizeof(struct rx_desc);
+
+ while (urb->actual_length > len_used) {
+ struct net_device *netdev = tp->netdev;
+ struct net_device_stats *stats = &netdev->stats;
+ unsigned int pkt_len;
+ struct sk_buff *skb;
+
+ pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
+ if (pkt_len < ETH_ZLEN)
+ break;
+
+ len_used += pkt_len;
+ if (urb->actual_length < len_used)
+ break;
+
+ pkt_len -= CRC_SIZE;
+ rx_data += sizeof(struct rx_desc);
+
+ skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
+ if (!skb) {
+ stats->rx_dropped++;
+ goto find_next_rx;
+ }
+
+ skb->ip_summed = r8152_rx_csum(tp, rx_desc);
+ memcpy(skb->data, rx_data, pkt_len);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, netdev);
+ rtl_rx_vlan_tag(rx_desc, skb);
+ if (work_done < budget) {
+ napi_gro_receive(&tp->napi, skb);
+ work_done++;
+ stats->rx_packets++;
+ stats->rx_bytes += pkt_len;
+ } else {
+ __skb_queue_tail(&tp->rx_queue, skb);
+ }
+
+find_next_rx:
+ rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
+ rx_desc = (struct rx_desc *)rx_data;
+ len_used = (int)(rx_data - (u8 *)agg->head);
+ len_used += sizeof(struct rx_desc);
+ }
+
+submit:
+ if (!ret) {
+ ret = r8152_submit_rx(tp, agg, GFP_ATOMIC);
+ } else {
+ urb->actual_length = 0;
+ list_add_tail(&agg->list, next);
+ }
+ }
+
+ if (!list_empty(&rx_queue)) {
+ spin_lock_irqsave(&tp->rx_lock, flags);
+ list_splice_tail(&rx_queue, &tp->rx_done);
+ spin_unlock_irqrestore(&tp->rx_lock, flags);
+ }
+
+out1:
+ return work_done;
+}
+
+static void tx_bottom(struct r8152 *tp)
+{
+ int res;
+
+ do {
+ struct tx_agg *agg;
+
+ if (skb_queue_empty(&tp->tx_queue))
+ break;
+
+ agg = r8152_get_tx_agg(tp);
+ if (!agg)
+ break;
+
+ res = r8152_tx_agg_fill(tp, agg);
+ if (res) {
+ struct net_device *netdev = tp->netdev;
+
+ if (res == -ENODEV) {
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(netdev);
+ } else {
+ struct net_device_stats *stats = &netdev->stats;
+ unsigned long flags;
+
+ netif_warn(tp, tx_err, netdev,
+ "failed tx_urb %d\n", res);
+ stats->tx_dropped += agg->skb_num;
+
+ spin_lock_irqsave(&tp->tx_lock, flags);
+ list_add_tail(&agg->list, &tp->tx_free);
+ spin_unlock_irqrestore(&tp->tx_lock, flags);
+ }
+ }
+ } while (res == 0);
+}
+
+static void bottom_half(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ return;
+
+ /* When link down, the driver would cancel all bulks. */
+ /* This avoid the re-submitting bulk */
+ if (!netif_carrier_ok(tp->netdev))
+ return;
+
+ clear_bit(SCHEDULE_NAPI, &tp->flags);
+
+ tx_bottom(tp);
+}
+
+static int r8152_poll(struct napi_struct *napi, int budget)
+{
+ struct r8152 *tp = container_of(napi, struct r8152, napi);
+ int work_done;
+
+ work_done = rx_bottom(tp, budget);
+ bottom_half(tp);
+
+ if (work_done < budget) {
+ napi_complete(napi);
+ if (!list_empty(&tp->rx_done))
+ napi_schedule(napi);
+ else if (!skb_queue_empty(&tp->tx_queue) &&
+ !list_empty(&tp->tx_free))
+ napi_schedule(napi);
+ }
+
+ return work_done;
+}
+
+static
+int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
+{
+ int ret;
+
+ /* The rx would be stopped, so skip submitting */
+ if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
+ !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
+ return 0;
+
+ usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
+ agg->head, agg_buf_sz,
+ (usb_complete_t)read_bulk_callback, agg);
+
+ ret = usb_submit_urb(agg->urb, mem_flags);
+ if (ret == -ENODEV) {
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+ netif_device_detach(tp->netdev);
+ } else if (ret) {
+ struct urb *urb = agg->urb;
+ unsigned long flags;
+
+ urb->actual_length = 0;
+ spin_lock_irqsave(&tp->rx_lock, flags);
+ list_add_tail(&agg->list, &tp->rx_done);
+ spin_unlock_irqrestore(&tp->rx_lock, flags);
+
+ netif_err(tp, rx_err, tp->netdev,
+ "Couldn't submit rx[%p], ret = %d\n", agg, ret);
+
+ napi_schedule(&tp->napi);
+ }
+
+ return ret;
+}
+
+static void rtl_drop_queued_tx(struct r8152 *tp)
+{
+ struct net_device_stats *stats = &tp->netdev->stats;
+ struct sk_buff_head skb_head, *tx_queue = &tp->tx_queue;
+ struct sk_buff *skb;
+
+ if (skb_queue_empty(tx_queue))
+ return;
+
+ __skb_queue_head_init(&skb_head);
+ spin_lock_bh(&tx_queue->lock);
+ skb_queue_splice_init(tx_queue, &skb_head);
+ spin_unlock_bh(&tx_queue->lock);
+
+ while ((skb = __skb_dequeue(&skb_head))) {
+ dev_kfree_skb(skb);
+ stats->tx_dropped++;
+ }
+}
+
+static void rtl8152_tx_timeout(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ netif_warn(tp, tx_err, netdev, "Tx timeout\n");
+
+ usb_queue_reset_device(tp->intf);
+}
+
+static void rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ if (netif_carrier_ok(netdev)) {
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+ }
+}
+
+static void _rtl8152_set_rx_mode(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ u32 mc_filter[2]; /* Multicast hash filter */
+ __le32 tmp[2];
+ u32 ocp_data;
+
+ clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ netif_stop_queue(netdev);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_data |= RCR_AB | RCR_APM;
+
+ if (netdev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
+ ocp_data |= RCR_AM | RCR_AAP;
+ mc_filter[1] = 0xffffffff;
+ mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
+ (netdev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ ocp_data |= RCR_AM;
+ mc_filter[1] = 0xffffffff;
+ mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ mc_filter[1] = 0;
+ mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, netdev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ ocp_data |= RCR_AM;
+ }
+ }
+
+ tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
+ tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
+
+ pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+ netif_wake_queue(netdev);
+}
+
+static netdev_features_t
+rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
+ netdev_features_t features)
+{
+ u32 mss = skb_shinfo(skb)->gso_size;
+ int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX;
+ int offset = skb_transport_offset(skb);
+
+ if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
+ features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
+ else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
+ features &= ~NETIF_F_GSO_MASK;
+
+ return features;
+}
+
+static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ skb_tx_timestamp(skb);
+
+ skb_queue_tail(&tp->tx_queue, skb);
+
+ if (!list_empty(&tp->tx_free)) {
+ if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+ set_bit(SCHEDULE_NAPI, &tp->flags);
+ schedule_delayed_work(&tp->schedule, 0);
+ } else {
+ usb_mark_last_busy(tp->udev);
+ napi_schedule(&tp->napi);
+ }
+ } else if (skb_queue_len(&tp->tx_queue) > tp->tx_qlen) {
+ netif_stop_queue(netdev);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static void r8152b_reset_packet_filter(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
+ ocp_data &= ~FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+ ocp_data |= FMC_FCR_MCU_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
+}
+
+static void rtl8152_nic_reset(struct r8152 *tp)
+{
+ int i;
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
+
+ for (i = 0; i < 1000; i++) {
+ if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
+ break;
+ usleep_range(100, 400);
+ }
+}
+
+static void set_tx_qlen(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+
+ tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN +
+ sizeof(struct tx_desc));
+}
+
+static inline u8 rtl8152_get_speed(struct r8152 *tp)
+{
+ return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
+}
+
+static void rtl_set_eee_plus(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u8 speed;
+
+ speed = rtl8152_get_speed(tp);
+ if (speed & _10bps) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data |= EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ } else {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
+ ocp_data &= ~EEEP_CR_EEEP_TX;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+ }
+}
+
+static void rxdy_gated_en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
+ if (enable)
+ ocp_data |= RXDY_GATED_EN;
+ else
+ ocp_data &= ~RXDY_GATED_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
+}
+
+static int rtl_start_rx(struct r8152 *tp)
+{
+ int i, ret = 0;
+
+ INIT_LIST_HEAD(&tp->rx_done);
+ for (i = 0; i < RTL8152_MAX_RX; i++) {
+ INIT_LIST_HEAD(&tp->rx_info[i].list);
+ ret = r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL);
+ if (ret)
+ break;
+ }
+
+ if (ret && ++i < RTL8152_MAX_RX) {
+ struct list_head rx_queue;
+ unsigned long flags;
+
+ INIT_LIST_HEAD(&rx_queue);
+
+ do {
+ struct rx_agg *agg = &tp->rx_info[i++];
+ struct urb *urb = agg->urb;
+
+ urb->actual_length = 0;
+ list_add_tail(&agg->list, &rx_queue);
+ } while (i < RTL8152_MAX_RX);
+
+ spin_lock_irqsave(&tp->rx_lock, flags);
+ list_splice_tail(&rx_queue, &tp->rx_done);
+ spin_unlock_irqrestore(&tp->rx_lock, flags);
+ }
+
+ return ret;
+}
+
+static int rtl_stop_rx(struct r8152 *tp)
+{
+ int i;
+
+ for (i = 0; i < RTL8152_MAX_RX; i++)
+ usb_kill_urb(tp->rx_info[i].urb);
+
+ while (!skb_queue_empty(&tp->rx_queue))
+ dev_kfree_skb(__skb_dequeue(&tp->rx_queue));
+
+ return 0;
+}
+
+static int rtl_enable(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ r8152b_reset_packet_filter(tp);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
+ ocp_data |= CR_RE | CR_TE;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
+
+ rxdy_gated_en(tp, false);
+
+ return 0;
+}
+
+static int rtl8152_enable(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ set_tx_qlen(tp);
+ rtl_set_eee_plus(tp);
+
+ return rtl_enable(tp);
+}
+
+static void r8153_set_rx_early_timeout(struct r8152 *tp)
+{
+ u32 ocp_data = tp->coalesce / 8;
+
+ ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT, ocp_data);
+}
+
+static void r8153_set_rx_early_size(struct r8152 *tp)
+{
+ u32 mtu = tp->netdev->mtu;
+ u32 ocp_data = (agg_buf_sz - mtu - VLAN_ETH_HLEN - VLAN_HLEN) / 4;
+
+ ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE, ocp_data);
+}
+
+static int rtl8153_enable(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ usb_disable_lpm(tp->udev);
+ set_tx_qlen(tp);
+ rtl_set_eee_plus(tp);
+ r8153_set_rx_early_timeout(tp);
+ r8153_set_rx_early_size(tp);
+
+ return rtl_enable(tp);
+}
+
+static void rtl_disable(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+ rtl_drop_queued_tx(tp);
+ return;
+ }
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ rtl_drop_queued_tx(tp);
+
+ for (i = 0; i < RTL8152_MAX_TX; i++)
+ usb_kill_urb(tp->tx_info[i].urb);
+
+ rxdy_gated_en(tp, true);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ for (i = 0; i < 1000; i++) {
+ if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ rtl_stop_rx(tp);
+
+ rtl8152_nic_reset(tp);
+}
+
+static void r8152_power_cut_en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
+ if (enable)
+ ocp_data |= POWER_CUT;
+ else
+ ocp_data &= ~POWER_CUT;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
+ ocp_data &= ~RESUME_INDICATE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
+}
+
+static void rtl_rx_vlan_en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
+ if (enable)
+ ocp_data |= CPCR_RX_VLAN;
+ else
+ ocp_data &= ~CPCR_RX_VLAN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
+}
+
+static int rtl8152_set_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ netdev_features_t changed = features ^ dev->features;
+ struct r8152 *tp = netdev_priv(dev);
+ int ret;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ rtl_rx_vlan_en(tp, true);
+ else
+ rtl_rx_vlan_en(tp, false);
+ }
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+
+static u32 __rtl_get_wol(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u32 wolopts = 0;
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5);
+ if (!(ocp_data & LAN_WAKE_EN))
+ return 0;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
+ if (ocp_data & LINK_ON_WAKE_EN)
+ wolopts |= WAKE_PHY;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
+ if (ocp_data & UWF_EN)
+ wolopts |= WAKE_UCAST;
+ if (ocp_data & BWF_EN)
+ wolopts |= WAKE_BCAST;
+ if (ocp_data & MWF_EN)
+ wolopts |= WAKE_MCAST;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
+ if (ocp_data & MAGIC_EN)
+ wolopts |= WAKE_MAGIC;
+
+ return wolopts;
+}
+
+static void __rtl_set_wol(struct r8152 *tp, u32 wolopts)
+{
+ u32 ocp_data;
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
+ ocp_data &= ~LINK_ON_WAKE_EN;
+ if (wolopts & WAKE_PHY)
+ ocp_data |= LINK_ON_WAKE_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
+ ocp_data &= ~(UWF_EN | BWF_EN | MWF_EN | LAN_WAKE_EN);
+ if (wolopts & WAKE_UCAST)
+ ocp_data |= UWF_EN;
+ if (wolopts & WAKE_BCAST)
+ ocp_data |= BWF_EN;
+ if (wolopts & WAKE_MCAST)
+ ocp_data |= MWF_EN;
+ if (wolopts & WAKE_ANY)
+ ocp_data |= LAN_WAKE_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
+ ocp_data &= ~MAGIC_EN;
+ if (wolopts & WAKE_MAGIC)
+ ocp_data |= MAGIC_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);
+
+ if (wolopts & WAKE_ANY)
+ device_set_wakeup_enable(&tp->udev->dev, true);
+ else
+ device_set_wakeup_enable(&tp->udev->dev, false);
+}
+
+static void r8153_u1u2en(struct r8152 *tp, bool enable)
+{
+ u8 u1u2[8];
+
+ if (enable)
+ memset(u1u2, 0xff, sizeof(u1u2));
+ else
+ memset(u1u2, 0x00, sizeof(u1u2));
+
+ usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2);
+}
+
+static void r8153_u2p3en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL);
+ if (enable && tp->version != RTL_VER_03 && tp->version != RTL_VER_04)
+ ocp_data |= U2P3_ENABLE;
+ else
+ ocp_data &= ~U2P3_ENABLE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
+}
+
+static void r8153_power_cut_en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT);
+ if (enable)
+ ocp_data |= PWR_EN | PHASE2_EN;
+ else
+ ocp_data &= ~(PWR_EN | PHASE2_EN);
+ ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
+ ocp_data &= ~PCUT_STATUS;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
+}
+
+static bool rtl_can_wakeup(struct r8152 *tp)
+{
+ struct usb_device *udev = tp->udev;
+
+ return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
+}
+
+static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
+{
+ if (enable) {
+ u32 ocp_data;
+
+ r8153_u1u2en(tp, false);
+ r8153_u2p3en(tp, false);
+
+ __rtl_set_wol(tp, WAKE_ANY);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
+ ocp_data |= LINK_OFF_WAKE_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+ } else {
+ __rtl_set_wol(tp, tp->saved_wolopts);
+ r8153_u2p3en(tp, true);
+ r8153_u1u2en(tp, true);
+ }
+}
+
+static void rtl_phy_reset(struct r8152 *tp)
+{
+ u16 data;
+ int i;
+
+ clear_bit(PHY_RESET, &tp->flags);
+
+ data = r8152_mdio_read(tp, MII_BMCR);
+
+ /* don't reset again before the previous one complete */
+ if (data & BMCR_RESET)
+ return;
+
+ data |= BMCR_RESET;
+ r8152_mdio_write(tp, MII_BMCR, data);
+
+ for (i = 0; i < 50; i++) {
+ msleep(20);
+ if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
+ break;
+ }
+}
+
+static void r8153_teredo_off(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
+ ocp_data &= ~(TEREDO_SEL | TEREDO_RS_EVENT_MASK | OOB_TEREDO_EN);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_REALWOW_TIMER, 0);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TEREDO_TIMER, 0);
+}
+
+static void r8152b_disable_aldps(struct r8152 *tp)
+{
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA | DIS_SDSAVE);
+ msleep(20);
+}
+
+static inline void r8152b_enable_aldps(struct r8152 *tp)
+{
+ ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
+ LINKENA | DIS_SDSAVE);
+}
+
+static void rtl8152_disable(struct r8152 *tp)
+{
+ r8152b_disable_aldps(tp);
+ rtl_disable(tp);
+ r8152b_enable_aldps(tp);
+}
+
+static void r8152b_hw_phy_cfg(struct r8152 *tp)
+{
+ u16 data;
+
+ data = r8152_mdio_read(tp, MII_BMCR);
+ if (data & BMCR_PDOWN) {
+ data &= ~BMCR_PDOWN;
+ r8152_mdio_write(tp, MII_BMCR, data);
+ }
+
+ set_bit(PHY_RESET, &tp->flags);
+}
+
+static void r8152b_exit_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ rxdy_gated_en(tp, true);
+ r8153_teredo_off(tp);
+ r8152b_hw_phy_cfg(tp);
+
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data &= ~MCU_BORW_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ rtl8152_nic_reset(tp);
+
+ /* rx share fifo credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
+
+ if (tp->udev->speed == USB_SPEED_FULL ||
+ tp->udev->speed == USB_SPEED_LOW) {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
+ RXFIFO_THR2_FULL);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
+ RXFIFO_THR3_FULL);
+ } else {
+ /* rx share fifo credit near full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
+ RXFIFO_THR2_HIGH);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
+ RXFIFO_THR3_HIGH);
+ }
+
+ /* TX share fifo free credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
+
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
+ ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
+ TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
+
+ rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
+ ocp_data |= TCR0_AUTO_FIFO;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
+}
+
+static void r8152b_enter_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
+
+ rtl_disable(tp);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
+
+ rtl_rx_vlan_en(tp, true);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
+ ocp_data |= ALDPS_PROXY_MODE;
+ ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ rxdy_gated_en(tp, false);
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data |= RCR_APM | RCR_AM | RCR_AB;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+}
+
+static void r8153_hw_phy_cfg(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u16 data;
+
+ if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 ||
+ tp->version == RTL_VER_05)
+ ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L);
+
+ data = r8152_mdio_read(tp, MII_BMCR);
+ if (data & BMCR_PDOWN) {
+ data &= ~BMCR_PDOWN;
+ r8152_mdio_write(tp, MII_BMCR, data);
+ }
+
+ if (tp->version == RTL_VER_03) {
+ data = ocp_reg_read(tp, OCP_EEE_CFG);
+ data &= ~CTAP_SHORT_EN;
+ ocp_reg_write(tp, OCP_EEE_CFG, data);
+ }
+
+ data = ocp_reg_read(tp, OCP_POWER_CFG);
+ data |= EEE_CLKDIV_EN;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+
+ data = ocp_reg_read(tp, OCP_DOWN_SPEED);
+ data |= EN_10M_BGOFF;
+ ocp_reg_write(tp, OCP_DOWN_SPEED, data);
+ data = ocp_reg_read(tp, OCP_POWER_CFG);
+ data |= EN_10M_PLLOFF;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+ sram_write(tp, SRAM_IMPEDANCE, 0x0b13);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
+ ocp_data |= PFM_PWM_SWITCH;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
+
+ /* Enable LPF corner auto tune */
+ sram_write(tp, SRAM_LPF_CFG, 0xf70f);
+
+ /* Adjust 10M Amplitude */
+ sram_write(tp, SRAM_10M_AMP1, 0x00af);
+ sram_write(tp, SRAM_10M_AMP2, 0x0208);
+
+ set_bit(PHY_RESET, &tp->flags);
+}
+
+static void r8153_first_init(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ rxdy_gated_en(tp, true);
+ r8153_teredo_off(tp);
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data &= ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+
+ r8153_hw_phy_cfg(tp);
+
+ rtl8152_nic_reset(tp);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data &= ~MCU_BORW_EN;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
+ ocp_data |= TCR0_AUTO_FIFO;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
+
+ rtl8152_nic_reset(tp);
+
+ /* rx share fifo credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL);
+ /* TX share fifo free credit full threshold */
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2);
+
+ /* rx aggregation */
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
+ ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
+ ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
+}
+
+static void r8153_enter_oob(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data &= ~NOW_IS_OOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ rtl_disable(tp);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
+ ocp_data |= RE_INIT_LL;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
+
+ for (i = 0; i < 1000; i++) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ if (ocp_data & LINK_LIST_READY)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG);
+ ocp_data &= ~TEREDO_WAKE_MASK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, ocp_data);
+
+ rtl_rx_vlan_en(tp, true);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
+ ocp_data |= ALDPS_PROXY_MODE;
+ ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
+ ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
+
+ rxdy_gated_en(tp, false);
+
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data |= RCR_APM | RCR_AM | RCR_AB;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+}
+
+static void r8153_disable_aldps(struct r8152 *tp)
+{
+ u16 data;
+
+ data = ocp_reg_read(tp, OCP_POWER_CFG);
+ data &= ~EN_ALDPS;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+ msleep(20);
+}
+
+static void r8153_enable_aldps(struct r8152 *tp)
+{
+ u16 data;
+
+ data = ocp_reg_read(tp, OCP_POWER_CFG);
+ data |= EN_ALDPS;
+ ocp_reg_write(tp, OCP_POWER_CFG, data);
+}
+
+static void rtl8153_disable(struct r8152 *tp)
+{
+ r8153_disable_aldps(tp);
+ rtl_disable(tp);
+ r8153_enable_aldps(tp);
+ usb_enable_lpm(tp->udev);
+}
+
+static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
+{
+ u16 bmcr, anar, gbcr;
+ int ret = 0;
+
+ cancel_delayed_work_sync(&tp->schedule);
+ anar = r8152_mdio_read(tp, MII_ADVERTISE);
+ anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL);
+ if (tp->mii.supports_gmii) {
+ gbcr = r8152_mdio_read(tp, MII_CTRL1000);
+ gbcr &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+ } else {
+ gbcr = 0;
+ }
+
+ if (autoneg == AUTONEG_DISABLE) {
+ if (speed == SPEED_10) {
+ bmcr = 0;
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ } else if (speed == SPEED_100) {
+ bmcr = BMCR_SPEED100;
+ anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
+ bmcr = BMCR_SPEED1000;
+ gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (duplex == DUPLEX_FULL)
+ bmcr |= BMCR_FULLDPLX;
+ } else {
+ if (speed == SPEED_10) {
+ if (duplex == DUPLEX_FULL)
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ else
+ anar |= ADVERTISE_10HALF;
+ } else if (speed == SPEED_100) {
+ if (duplex == DUPLEX_FULL) {
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ } else {
+ anar |= ADVERTISE_10HALF;
+ anar |= ADVERTISE_100HALF;
+ }
+ } else if (speed == SPEED_1000 && tp->mii.supports_gmii) {
+ if (duplex == DUPLEX_FULL) {
+ anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ gbcr |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+ } else {
+ anar |= ADVERTISE_10HALF;
+ anar |= ADVERTISE_100HALF;
+ gbcr |= ADVERTISE_1000HALF;
+ }
+ } else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+ }
+
+ if (test_bit(PHY_RESET, &tp->flags))
+ bmcr |= BMCR_RESET;
+
+ if (tp->mii.supports_gmii)
+ r8152_mdio_write(tp, MII_CTRL1000, gbcr);
+
+ r8152_mdio_write(tp, MII_ADVERTISE, anar);
+ r8152_mdio_write(tp, MII_BMCR, bmcr);
+
+ if (test_bit(PHY_RESET, &tp->flags)) {
+ int i;
+
+ clear_bit(PHY_RESET, &tp->flags);
+ for (i = 0; i < 50; i++) {
+ msleep(20);
+ if ((r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET) == 0)
+ break;
+ }
+ }
+
+out:
+
+ return ret;
+}
+
+static void rtl8152_up(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ r8152b_disable_aldps(tp);
+ r8152b_exit_oob(tp);
+ r8152b_enable_aldps(tp);
+}
+
+static void rtl8152_down(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+ rtl_drop_queued_tx(tp);
+ return;
+ }
+
+ r8152_power_cut_en(tp, false);
+ r8152b_disable_aldps(tp);
+ r8152b_enter_oob(tp);
+ r8152b_enable_aldps(tp);
+}
+
+static void rtl8153_up(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ r8153_u1u2en(tp, false);
+ r8153_disable_aldps(tp);
+ r8153_first_init(tp);
+ r8153_enable_aldps(tp);
+ r8153_u2p3en(tp, true);
+ r8153_u1u2en(tp, true);
+ usb_enable_lpm(tp->udev);
+}
+
+static void rtl8153_down(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
+ rtl_drop_queued_tx(tp);
+ return;
+ }
+
+ r8153_u1u2en(tp, false);
+ r8153_u2p3en(tp, false);
+ r8153_power_cut_en(tp, false);
+ r8153_disable_aldps(tp);
+ r8153_enter_oob(tp);
+ r8153_enable_aldps(tp);
+}
+
+static bool rtl8152_in_nway(struct r8152 *tp)
+{
+ u16 nway_state;
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000);
+ tp->ocp_base = 0x2000;
+ ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */
+ nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a);
+
+ /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */
+ if (nway_state & 0xc000)
+ return false;
+ else
+ return true;
+}
+
+static bool rtl8153_in_nway(struct r8152 *tp)
+{
+ u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff;
+
+ if (phy_state == TXDIS_STATE || phy_state == ABD_STATE)
+ return false;
+ else
+ return true;
+}
+
+static void set_carrier(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+ u8 speed;
+
+ clear_bit(RTL8152_LINK_CHG, &tp->flags);
+ speed = rtl8152_get_speed(tp);
+
+ if (speed & LINK_STATUS) {
+ if (!netif_carrier_ok(netdev)) {
+ tp->rtl_ops.enable(tp);
+ set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ netif_stop_queue(netdev);
+ napi_disable(&tp->napi);
+ netif_carrier_on(netdev);
+ rtl_start_rx(tp);
+ napi_enable(&tp->napi);
+ netif_wake_queue(netdev);
+ netif_info(tp, link, netdev, "carrier on\n");
+ }
+ } else {
+ if (netif_carrier_ok(netdev)) {
+ netif_carrier_off(netdev);
+ napi_disable(&tp->napi);
+ tp->rtl_ops.disable(tp);
+ napi_enable(&tp->napi);
+ netif_info(tp, link, netdev, "carrier off\n");
+ }
+ }
+}
+
+static void rtl_work_func_t(struct work_struct *work)
+{
+ struct r8152 *tp = container_of(work, struct r8152, schedule.work);
+
+ /* If the device is unplugged or !netif_running(), the workqueue
+ * doesn't need to wake the device, and could return directly.
+ */
+ if (test_bit(RTL8152_UNPLUG, &tp->flags) || !netif_running(tp->netdev))
+ return;
+
+ if (usb_autopm_get_interface(tp->intf) < 0)
+ return;
+
+ if (!test_bit(WORK_ENABLE, &tp->flags))
+ goto out1;
+
+ if (!mutex_trylock(&tp->control)) {
+ schedule_delayed_work(&tp->schedule, 0);
+ goto out1;
+ }
+
+ if (test_bit(RTL8152_LINK_CHG, &tp->flags))
+ set_carrier(tp);
+
+ if (test_bit(RTL8152_SET_RX_MODE, &tp->flags))
+ _rtl8152_set_rx_mode(tp->netdev);
+
+ /* don't schedule napi before linking */
+ if (test_bit(SCHEDULE_NAPI, &tp->flags) &&
+ netif_carrier_ok(tp->netdev)) {
+ clear_bit(SCHEDULE_NAPI, &tp->flags);
+ napi_schedule(&tp->napi);
+ }
+
+ if (test_bit(PHY_RESET, &tp->flags))
+ rtl_phy_reset(tp);
+
+ mutex_unlock(&tp->control);
+
+out1:
+ usb_autopm_put_interface(tp->intf);
+}
+
+static int rtl8152_open(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int res = 0;
+
+ res = alloc_all_mem(tp);
+ if (res)
+ goto out;
+
+ netif_carrier_off(netdev);
+
+ res = usb_autopm_get_interface(tp->intf);
+ if (res < 0) {
+ free_all_mem(tp);
+ goto out;
+ }
+
+ mutex_lock(&tp->control);
+
+ tp->rtl_ops.up(tp);
+
+ rtl8152_set_speed(tp, AUTONEG_ENABLE,
+ tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
+ DUPLEX_FULL);
+ netif_carrier_off(netdev);
+ netif_start_queue(netdev);
+ set_bit(WORK_ENABLE, &tp->flags);
+
+ res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
+ if (res) {
+ if (res == -ENODEV)
+ netif_device_detach(tp->netdev);
+ netif_warn(tp, ifup, netdev, "intr_urb submit failed: %d\n",
+ res);
+ free_all_mem(tp);
+ } else {
+ napi_enable(&tp->napi);
+ }
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return res;
+}
+
+static int rtl8152_close(struct net_device *netdev)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int res = 0;
+
+ napi_disable(&tp->napi);
+ clear_bit(WORK_ENABLE, &tp->flags);
+ usb_kill_urb(tp->intr_urb);
+ cancel_delayed_work_sync(&tp->schedule);
+ netif_stop_queue(netdev);
+
+ res = usb_autopm_get_interface(tp->intf);
+ if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) {
+ rtl_drop_queued_tx(tp);
+ rtl_stop_rx(tp);
+ } else {
+ mutex_lock(&tp->control);
+
+ tp->rtl_ops.down(tp);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+ }
+
+ free_all_mem(tp);
+
+ return res;
+}
+
+static inline void r8152_mmd_indirect(struct r8152 *tp, u16 dev, u16 reg)
+{
+ ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | dev);
+ ocp_reg_write(tp, OCP_EEE_DATA, reg);
+ ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | dev);
+}
+
+static u16 r8152_mmd_read(struct r8152 *tp, u16 dev, u16 reg)
+{
+ u16 data;
+
+ r8152_mmd_indirect(tp, dev, reg);
+ data = ocp_reg_read(tp, OCP_EEE_DATA);
+ ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
+
+ return data;
+}
+
+static void r8152_mmd_write(struct r8152 *tp, u16 dev, u16 reg, u16 data)
+{
+ r8152_mmd_indirect(tp, dev, reg);
+ ocp_reg_write(tp, OCP_EEE_DATA, data);
+ ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
+}
+
+static void r8152_eee_en(struct r8152 *tp, bool enable)
+{
+ u16 config1, config2, config3;
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
+ config1 = ocp_reg_read(tp, OCP_EEE_CONFIG1) & ~sd_rise_time_mask;
+ config2 = ocp_reg_read(tp, OCP_EEE_CONFIG2);
+ config3 = ocp_reg_read(tp, OCP_EEE_CONFIG3) & ~fast_snr_mask;
+
+ if (enable) {
+ ocp_data |= EEE_RX_EN | EEE_TX_EN;
+ config1 |= EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN | RX_QUIET_EN;
+ config1 |= sd_rise_time(1);
+ config2 |= RG_DACQUIET_EN | RG_LDVQUIET_EN;
+ config3 |= fast_snr(42);
+ } else {
+ ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
+ config1 &= ~(EEE_10_CAP | EEE_NWAY_EN | TX_QUIET_EN |
+ RX_QUIET_EN);
+ config1 |= sd_rise_time(7);
+ config2 &= ~(RG_DACQUIET_EN | RG_LDVQUIET_EN);
+ config3 |= fast_snr(511);
+ }
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
+ ocp_reg_write(tp, OCP_EEE_CONFIG1, config1);
+ ocp_reg_write(tp, OCP_EEE_CONFIG2, config2);
+ ocp_reg_write(tp, OCP_EEE_CONFIG3, config3);
+}
+
+static void r8152b_enable_eee(struct r8152 *tp)
+{
+ r8152_eee_en(tp, true);
+ r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, MDIO_EEE_100TX);
+}
+
+static void r8153_eee_en(struct r8152 *tp, bool enable)
+{
+ u32 ocp_data;
+ u16 config;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
+ config = ocp_reg_read(tp, OCP_EEE_CFG);
+
+ if (enable) {
+ ocp_data |= EEE_RX_EN | EEE_TX_EN;
+ config |= EEE10_EN;
+ } else {
+ ocp_data &= ~(EEE_RX_EN | EEE_TX_EN);
+ config &= ~EEE10_EN;
+ }
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
+ ocp_reg_write(tp, OCP_EEE_CFG, config);
+}
+
+static void r8153_enable_eee(struct r8152 *tp)
+{
+ r8153_eee_en(tp, true);
+ ocp_reg_write(tp, OCP_EEE_ADV, MDIO_EEE_1000T | MDIO_EEE_100TX);
+}
+
+static void r8152b_enable_fc(struct r8152 *tp)
+{
+ u16 anar;
+
+ anar = r8152_mdio_read(tp, MII_ADVERTISE);
+ anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ r8152_mdio_write(tp, MII_ADVERTISE, anar);
+}
+
+static void rtl_tally_reset(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY);
+ ocp_data |= TALLY_RESET;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
+}
+
+static void r8152b_init(struct r8152 *tp)
+{
+ u32 ocp_data;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ r8152b_disable_aldps(tp);
+
+ if (tp->version == RTL_VER_01) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
+ ocp_data &= ~LED_MODE_MASK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
+ }
+
+ r8152_power_cut_en(tp, false);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
+ ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
+ ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
+ ocp_data &= ~MCU_CLK_RATIO_MASK;
+ ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
+ ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
+ SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
+
+ r8152b_enable_eee(tp);
+ r8152b_enable_aldps(tp);
+ r8152b_enable_fc(tp);
+ rtl_tally_reset(tp);
+
+ /* enable rx aggregation */
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
+ ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
+ ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
+}
+
+static void r8153_init(struct r8152 *tp)
+{
+ u32 ocp_data;
+ int i;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ r8153_disable_aldps(tp);
+ r8153_u1u2en(tp, false);
+
+ for (i = 0; i < 500; i++) {
+ if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
+ AUTOLOAD_DONE)
+ break;
+ msleep(20);
+ }
+
+ for (i = 0; i < 500; i++) {
+ ocp_data = ocp_reg_read(tp, OCP_PHY_STATUS) & PHY_STAT_MASK;
+ if (ocp_data == PHY_STAT_LAN_ON || ocp_data == PHY_STAT_PWRDN)
+ break;
+ msleep(20);
+ }
+
+ usb_disable_lpm(tp->udev);
+ r8153_u2p3en(tp, false);
+
+ if (tp->version == RTL_VER_04) {
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2);
+ ocp_data &= ~pwd_dn_scale_mask;
+ ocp_data |= pwd_dn_scale(96);
+ ocp_write_word(tp, MCU_TYPE_USB, USB_SSPHYLINK2, ocp_data);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_USB2PHY);
+ ocp_data |= USB2PHY_L1 | USB2PHY_SUSPEND;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_USB2PHY, ocp_data);
+ } else if (tp->version == RTL_VER_05) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0);
+ ocp_data &= ~ECM_ALDPS;
+ ocp_write_byte(tp, MCU_TYPE_PLA, PLA_DMY_REG0, ocp_data);
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
+ if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
+ ocp_data &= ~DYNAMIC_BURST;
+ else
+ ocp_data |= DYNAMIC_BURST;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
+ } else if (tp->version == RTL_VER_06) {
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1);
+ if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0)
+ ocp_data &= ~DYNAMIC_BURST;
+ else
+ ocp_data |= DYNAMIC_BURST;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data);
+ }
+
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2);
+ ocp_data |= EP4_FULL_FC;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL);
+ ocp_data &= ~TIMER11_EN;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_WDT11_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
+ ocp_data &= ~LED_MODE_MASK;
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
+
+ ocp_data = FIFO_EMPTY_1FB | ROK_EXIT_LPM;
+ if (tp->version == RTL_VER_04 && tp->udev->speed != USB_SPEED_SUPER)
+ ocp_data |= LPM_TIMER_500MS;
+ else
+ ocp_data |= LPM_TIMER_500US;
+ ocp_write_byte(tp, MCU_TYPE_USB, USB_LPM_CTRL, ocp_data);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2);
+ ocp_data &= ~SEN_VAL_MASK;
+ ocp_data |= SEN_VAL_NORMAL | SEL_RXIDLE;
+ ocp_write_word(tp, MCU_TYPE_USB, USB_AFE_CTRL2, ocp_data);
+
+ ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
+
+ r8153_power_cut_en(tp, false);
+ r8153_u1u2en(tp, true);
+
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ALDPS_SPDWN_RATIO);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, EEE_SPDWN_RATIO);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
+ PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
+ U1U2_SPDWN_EN | L1_SPDWN_EN);
+ ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
+ PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
+ TP100_SPDWN_EN | TP500_SPDWN_EN | TP1000_SPDWN_EN |
+ EEE_SPDWN_EN);
+
+ r8153_enable_eee(tp);
+ r8153_enable_aldps(tp);
+ r8152b_enable_fc(tp);
+ rtl_tally_reset(tp);
+ r8153_u2p3en(tp, true);
+}
+
+static int rtl8152_pre_reset(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+ struct net_device *netdev;
+
+ if (!tp)
+ return 0;
+
+ netdev = tp->netdev;
+ if (!netif_running(netdev))
+ return 0;
+
+ netif_stop_queue(netdev);
+ napi_disable(&tp->napi);
+ clear_bit(WORK_ENABLE, &tp->flags);
+ usb_kill_urb(tp->intr_urb);
+ cancel_delayed_work_sync(&tp->schedule);
+ if (netif_carrier_ok(netdev)) {
+ mutex_lock(&tp->control);
+ tp->rtl_ops.disable(tp);
+ mutex_unlock(&tp->control);
+ }
+
+ return 0;
+}
+
+static int rtl8152_post_reset(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+ struct net_device *netdev;
+
+ if (!tp)
+ return 0;
+
+ netdev = tp->netdev;
+ if (!netif_running(netdev))
+ return 0;
+
+ set_bit(WORK_ENABLE, &tp->flags);
+ if (netif_carrier_ok(netdev)) {
+ mutex_lock(&tp->control);
+ tp->rtl_ops.enable(tp);
+ rtl_start_rx(tp);
+ rtl8152_set_rx_mode(netdev);
+ mutex_unlock(&tp->control);
+ }
+
+ napi_enable(&tp->napi);
+ netif_wake_queue(netdev);
+ usb_submit_urb(tp->intr_urb, GFP_KERNEL);
+
+ return 0;
+}
+
+static bool delay_autosuspend(struct r8152 *tp)
+{
+ bool sw_linking = !!netif_carrier_ok(tp->netdev);
+ bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS);
+
+ /* This means a linking change occurs and the driver doesn't detect it,
+ * yet. If the driver has disabled tx/rx and hw is linking on, the
+ * device wouldn't wake up by receiving any packet.
+ */
+ if (work_busy(&tp->schedule.work) || sw_linking != hw_linking)
+ return true;
+
+ /* If the linking down is occurred by nway, the device may miss the
+ * linking change event. And it wouldn't wake when linking on.
+ */
+ if (!sw_linking && tp->rtl_ops.in_nway(tp))
+ return true;
+ else if (!skb_queue_empty(&tp->tx_queue))
+ return true;
+ else
+ return false;
+}
+
+static int rtl8152_rumtime_suspend(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+ int ret = 0;
+
+ if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
+ u32 rcr = 0;
+
+ if (delay_autosuspend(tp)) {
+ ret = -EBUSY;
+ goto out1;
+ }
+
+ if (netif_carrier_ok(netdev)) {
+ u32 ocp_data;
+
+ rcr = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+ ocp_data = rcr & ~RCR_ACPT_ALL;
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+ rxdy_gated_en(tp, true);
+ ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA,
+ PLA_OOB_CTRL);
+ if (!(ocp_data & RXFIFO_EMPTY)) {
+ rxdy_gated_en(tp, false);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+ ret = -EBUSY;
+ goto out1;
+ }
+ }
+
+ clear_bit(WORK_ENABLE, &tp->flags);
+ usb_kill_urb(tp->intr_urb);
+
+ rtl_runtime_suspend_enable(tp, true);
+
+ if (netif_carrier_ok(netdev)) {
+ napi_disable(&tp->napi);
+ rtl_stop_rx(tp);
+ rxdy_gated_en(tp, false);
+ ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+ napi_enable(&tp->napi);
+ }
+ }
+
+ set_bit(SELECTIVE_SUSPEND, &tp->flags);
+
+out1:
+ return ret;
+}
+
+static int rtl8152_system_suspend(struct r8152 *tp)
+{
+ struct net_device *netdev = tp->netdev;
+ int ret = 0;
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
+ clear_bit(WORK_ENABLE, &tp->flags);
+ usb_kill_urb(tp->intr_urb);
+ napi_disable(&tp->napi);
+ cancel_delayed_work_sync(&tp->schedule);
+ tp->rtl_ops.down(tp);
+ napi_enable(&tp->napi);
+ }
+
+ return ret;
+}
+
+static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+ int ret;
+
+ mutex_lock(&tp->control);
+
+ if (PMSG_IS_AUTO(message))
+ ret = rtl8152_rumtime_suspend(tp);
+ else
+ ret = rtl8152_system_suspend(tp);
+
+ mutex_unlock(&tp->control);
+
+ return ret;
+}
+
+static int rtl8152_resume(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ mutex_lock(&tp->control);
+
+ if (!test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+ tp->rtl_ops.init(tp);
+ netif_device_attach(tp->netdev);
+ }
+
+ if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
+ if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+ rtl_runtime_suspend_enable(tp, false);
+ clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+ napi_disable(&tp->napi);
+ set_bit(WORK_ENABLE, &tp->flags);
+ if (netif_carrier_ok(tp->netdev))
+ rtl_start_rx(tp);
+ napi_enable(&tp->napi);
+ } else {
+ tp->rtl_ops.up(tp);
+ rtl8152_set_speed(tp, AUTONEG_ENABLE,
+ tp->mii.supports_gmii ?
+ SPEED_1000 : SPEED_100,
+ DUPLEX_FULL);
+ netif_carrier_off(tp->netdev);
+ set_bit(WORK_ENABLE, &tp->flags);
+ }
+ usb_submit_urb(tp->intr_urb, GFP_KERNEL);
+ } else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+ if (tp->netdev->flags & IFF_UP)
+ rtl_runtime_suspend_enable(tp, false);
+ clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+ }
+
+ mutex_unlock(&tp->control);
+
+ return 0;
+}
+
+static int rtl8152_reset_resume(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+ return rtl8152_resume(intf);
+}
+
+static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct r8152 *tp = netdev_priv(dev);
+
+ if (usb_autopm_get_interface(tp->intf) < 0)
+ return;
+
+ if (!rtl_can_wakeup(tp)) {
+ wol->supported = 0;
+ wol->wolopts = 0;
+ } else {
+ mutex_lock(&tp->control);
+ wol->supported = WAKE_ANY;
+ wol->wolopts = __rtl_get_wol(tp);
+ mutex_unlock(&tp->control);
+ }
+
+ usb_autopm_put_interface(tp->intf);
+}
+
+static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct r8152 *tp = netdev_priv(dev);
+ int ret;
+
+ if (!rtl_can_wakeup(tp))
+ return -EOPNOTSUPP;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out_set_wol;
+
+ mutex_lock(&tp->control);
+
+ __rtl_set_wol(tp, wol->wolopts);
+ tp->saved_wolopts = wol->wolopts & WAKE_ANY;
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out_set_wol:
+ return ret;
+}
+
+static u32 rtl8152_get_msglevel(struct net_device *dev)
+{
+ struct r8152 *tp = netdev_priv(dev);
+
+ return tp->msg_enable;
+}
+
+static void rtl8152_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct r8152 *tp = netdev_priv(dev);
+
+ tp->msg_enable = value;
+}
+
+static void rtl8152_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *info)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ strlcpy(info->driver, MODULENAME, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
+}
+
+static
+int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int ret;
+
+ if (!tp->mii.mdio_read)
+ return -EOPNOTSUPP;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ ret = mii_ethtool_gset(&tp->mii, cmd);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct r8152 *tp = netdev_priv(dev);
+ int ret;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ ret = rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+static const char rtl8152_gstrings[][ETH_GSTRING_LEN] = {
+ "tx_packets",
+ "rx_packets",
+ "tx_errors",
+ "rx_errors",
+ "rx_missed",
+ "align_errors",
+ "tx_single_collisions",
+ "tx_multi_collisions",
+ "rx_unicast",
+ "rx_broadcast",
+ "rx_multicast",
+ "tx_aborted",
+ "tx_underrun",
+};
+
+static int rtl8152_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(rtl8152_gstrings);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8152_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct r8152 *tp = netdev_priv(dev);
+ struct tally_counter tally;
+
+ if (usb_autopm_get_interface(tp->intf) < 0)
+ return;
+
+ generic_ocp_read(tp, PLA_TALLYCNT, sizeof(tally), &tally, MCU_TYPE_PLA);
+
+ usb_autopm_put_interface(tp->intf);
+
+ data[0] = le64_to_cpu(tally.tx_packets);
+ data[1] = le64_to_cpu(tally.rx_packets);
+ data[2] = le64_to_cpu(tally.tx_errors);
+ data[3] = le32_to_cpu(tally.rx_errors);
+ data[4] = le16_to_cpu(tally.rx_missed);
+ data[5] = le16_to_cpu(tally.align_errors);
+ data[6] = le32_to_cpu(tally.tx_one_collision);
+ data[7] = le32_to_cpu(tally.tx_multi_collision);
+ data[8] = le64_to_cpu(tally.rx_unicast);
+ data[9] = le64_to_cpu(tally.rx_broadcast);
+ data[10] = le32_to_cpu(tally.rx_multicast);
+ data[11] = le16_to_cpu(tally.tx_aborted);
+ data[12] = le16_to_cpu(tally.tx_underrun);
+}
+
+static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, *rtl8152_gstrings, sizeof(rtl8152_gstrings));
+ break;
+ }
+}
+
+static int r8152_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
+{
+ u32 ocp_data, lp, adv, supported = 0;
+ u16 val;
+
+ val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
+ supported = mmd_eee_cap_to_ethtool_sup_t(val);
+
+ val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
+ adv = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
+ lp = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
+ ocp_data &= EEE_RX_EN | EEE_TX_EN;
+
+ eee->eee_enabled = !!ocp_data;
+ eee->eee_active = !!(supported & adv & lp);
+ eee->supported = supported;
+ eee->advertised = adv;
+ eee->lp_advertised = lp;
+
+ return 0;
+}
+
+static int r8152_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
+{
+ u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
+
+ r8152_eee_en(tp, eee->eee_enabled);
+
+ if (!eee->eee_enabled)
+ val = 0;
+
+ r8152_mmd_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
+
+ return 0;
+}
+
+static int r8153_get_eee(struct r8152 *tp, struct ethtool_eee *eee)
+{
+ u32 ocp_data, lp, adv, supported = 0;
+ u16 val;
+
+ val = ocp_reg_read(tp, OCP_EEE_ABLE);
+ supported = mmd_eee_cap_to_ethtool_sup_t(val);
+
+ val = ocp_reg_read(tp, OCP_EEE_ADV);
+ adv = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ val = ocp_reg_read(tp, OCP_EEE_LPABLE);
+ lp = mmd_eee_adv_to_ethtool_adv_t(val);
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
+ ocp_data &= EEE_RX_EN | EEE_TX_EN;
+
+ eee->eee_enabled = !!ocp_data;
+ eee->eee_active = !!(supported & adv & lp);
+ eee->supported = supported;
+ eee->advertised = adv;
+ eee->lp_advertised = lp;
+
+ return 0;
+}
+
+static int r8153_set_eee(struct r8152 *tp, struct ethtool_eee *eee)
+{
+ u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised);
+
+ r8153_eee_en(tp, eee->eee_enabled);
+
+ if (!eee->eee_enabled)
+ val = 0;
+
+ ocp_reg_write(tp, OCP_EEE_ADV, val);
+
+ return 0;
+}
+
+static int
+rtl_ethtool_get_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct r8152 *tp = netdev_priv(net);
+ int ret;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ ret = tp->rtl_ops.eee_get(tp, edata);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+static int
+rtl_ethtool_set_eee(struct net_device *net, struct ethtool_eee *edata)
+{
+ struct r8152 *tp = netdev_priv(net);
+ int ret;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ ret = tp->rtl_ops.eee_set(tp, edata);
+ if (!ret)
+ ret = mii_nway_restart(&tp->mii);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+static int rtl8152_nway_reset(struct net_device *dev)
+{
+ struct r8152 *tp = netdev_priv(dev);
+ int ret;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ goto out;
+
+ mutex_lock(&tp->control);
+
+ ret = mii_nway_restart(&tp->mii);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return ret;
+}
+
+static int rtl8152_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *coalesce)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+
+ switch (tp->version) {
+ case RTL_VER_01:
+ case RTL_VER_02:
+ return -EOPNOTSUPP;
+ default:
+ break;
+ }
+
+ coalesce->rx_coalesce_usecs = tp->coalesce;
+
+ return 0;
+}
+
+static int rtl8152_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *coalesce)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ int ret;
+
+ switch (tp->version) {
+ case RTL_VER_01:
+ case RTL_VER_02:
+ return -EOPNOTSUPP;
+ default:
+ break;
+ }
+
+ if (coalesce->rx_coalesce_usecs > COALESCE_SLOW)
+ return -EINVAL;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&tp->control);
+
+ if (tp->coalesce != coalesce->rx_coalesce_usecs) {
+ tp->coalesce = coalesce->rx_coalesce_usecs;
+
+ if (netif_running(tp->netdev) && netif_carrier_ok(netdev))
+ r8153_set_rx_early_timeout(tp);
+ }
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+ return ret;
+}
+
+static struct ethtool_ops ops = {
+ .get_drvinfo = rtl8152_get_drvinfo,
+ .get_settings = rtl8152_get_settings,
+ .set_settings = rtl8152_set_settings,
+ .get_link = ethtool_op_get_link,
+ .nway_reset = rtl8152_nway_reset,
+ .get_msglevel = rtl8152_get_msglevel,
+ .set_msglevel = rtl8152_set_msglevel,
+ .get_wol = rtl8152_get_wol,
+ .set_wol = rtl8152_set_wol,
+ .get_strings = rtl8152_get_strings,
+ .get_sset_count = rtl8152_get_sset_count,
+ .get_ethtool_stats = rtl8152_get_ethtool_stats,
+ .get_coalesce = rtl8152_get_coalesce,
+ .set_coalesce = rtl8152_set_coalesce,
+ .get_eee = rtl_ethtool_get_eee,
+ .set_eee = rtl_ethtool_set_eee,
+};
+
+static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct r8152 *tp = netdev_priv(netdev);
+ struct mii_ioctl_data *data = if_mii(rq);
+ int res;
+
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return -ENODEV;
+
+ res = usb_autopm_get_interface(tp->intf);
+ if (res < 0)
+ goto out;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = R8152_PHY_ID; /* Internal PHY */
+ break;
+
+ case SIOCGMIIREG:
+ mutex_lock(&tp->control);
+ data->val_out = r8152_mdio_read(tp, data->reg_num);
+ mutex_unlock(&tp->control);
+ break;
+
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN)) {
+ res = -EPERM;
+ break;
+ }
+ mutex_lock(&tp->control);
+ r8152_mdio_write(tp, data->reg_num, data->val_in);
+ mutex_unlock(&tp->control);
+ break;
+
+ default:
+ res = -EOPNOTSUPP;
+ }
+
+ usb_autopm_put_interface(tp->intf);
+
+out:
+ return res;
+}
+
+static int rtl8152_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct r8152 *tp = netdev_priv(dev);
+ int ret;
+
+ switch (tp->version) {
+ case RTL_VER_01:
+ case RTL_VER_02:
+ return eth_change_mtu(dev, new_mtu);
+ default:
+ break;
+ }
+
+ if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU)
+ return -EINVAL;
+
+ ret = usb_autopm_get_interface(tp->intf);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&tp->control);
+
+ dev->mtu = new_mtu;
+
+ if (netif_running(dev) && netif_carrier_ok(dev))
+ r8153_set_rx_early_size(tp);
+
+ mutex_unlock(&tp->control);
+
+ usb_autopm_put_interface(tp->intf);
+
+ return ret;
+}
+
+static const struct net_device_ops rtl8152_netdev_ops = {
+ .ndo_open = rtl8152_open,
+ .ndo_stop = rtl8152_close,
+ .ndo_do_ioctl = rtl8152_ioctl,
+ .ndo_start_xmit = rtl8152_start_xmit,
+ .ndo_tx_timeout = rtl8152_tx_timeout,
+ .ndo_set_features = rtl8152_set_features,
+ .ndo_set_rx_mode = rtl8152_set_rx_mode,
+ .ndo_set_mac_address = rtl8152_set_mac_address,
+ .ndo_change_mtu = rtl8152_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_features_check = rtl8152_features_check,
+};
+
+static void r8152b_get_version(struct r8152 *tp)
+{
+ u32 ocp_data;
+ u16 version;
+
+ ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
+ version = (u16)(ocp_data & VERSION_MASK);
+
+ switch (version) {
+ case 0x4c00:
+ tp->version = RTL_VER_01;
+ break;
+ case 0x4c10:
+ tp->version = RTL_VER_02;
+ break;
+ case 0x5c00:
+ tp->version = RTL_VER_03;
+ tp->mii.supports_gmii = 1;
+ break;
+ case 0x5c10:
+ tp->version = RTL_VER_04;
+ tp->mii.supports_gmii = 1;
+ break;
+ case 0x5c20:
+ tp->version = RTL_VER_05;
+ tp->mii.supports_gmii = 1;
+ break;
+ case 0x5c30:
+ tp->version = RTL_VER_06;
+ tp->mii.supports_gmii = 1;
+ break;
+ default:
+ netif_info(tp, probe, tp->netdev,
+ "Unknown version 0x%04x\n", version);
+ break;
+ }
+}
+
+static void rtl8152_unload(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ if (tp->version != RTL_VER_01)
+ r8152_power_cut_en(tp, true);
+}
+
+static void rtl8153_unload(struct r8152 *tp)
+{
+ if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ return;
+
+ r8153_power_cut_en(tp, false);
+}
+
+static int rtl_ops_init(struct r8152 *tp)
+{
+ struct rtl_ops *ops = &tp->rtl_ops;
+ int ret = 0;
+
+ switch (tp->version) {
+ case RTL_VER_01:
+ case RTL_VER_02:
+ ops->init = r8152b_init;
+ ops->enable = rtl8152_enable;
+ ops->disable = rtl8152_disable;
+ ops->up = rtl8152_up;
+ ops->down = rtl8152_down;
+ ops->unload = rtl8152_unload;
+ ops->eee_get = r8152_get_eee;
+ ops->eee_set = r8152_set_eee;
+ ops->in_nway = rtl8152_in_nway;
+ break;
+
+ case RTL_VER_03:
+ case RTL_VER_04:
+ case RTL_VER_05:
+ case RTL_VER_06:
+ ops->init = r8153_init;
+ ops->enable = rtl8153_enable;
+ ops->disable = rtl8153_disable;
+ ops->up = rtl8153_up;
+ ops->down = rtl8153_down;
+ ops->unload = rtl8153_unload;
+ ops->eee_get = r8153_get_eee;
+ ops->eee_set = r8153_set_eee;
+ ops->in_nway = rtl8153_in_nway;
+ break;
+
+ default:
+ ret = -ENODEV;
+ netif_err(tp, probe, tp->netdev, "Unknown Device\n");
+ break;
+ }
+
+ return ret;
+}
+
+static int rtl8152_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct r8152 *tp;
+ struct net_device *netdev;
+ int ret;
+
+ if (udev->actconfig->desc.bConfigurationValue != 1) {
+ usb_driver_set_configuration(udev, 1);
+ return -ENODEV;
+ }
+
+ usb_reset_device(udev);
+ netdev = alloc_etherdev(sizeof(struct r8152));
+ if (!netdev) {
+ dev_err(&intf->dev, "Out of memory\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(netdev, &intf->dev);
+ tp = netdev_priv(netdev);
+ tp->msg_enable = 0x7FFF;
+
+ tp->udev = udev;
+ tp->netdev = netdev;
+ tp->intf = intf;
+
+ r8152b_get_version(tp);
+ ret = rtl_ops_init(tp);
+ if (ret)
+ goto out;
+
+ mutex_init(&tp->control);
+ INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
+
+ netdev->netdev_ops = &rtl8152_netdev_ops;
+ netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
+
+ netdev->features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
+ NETIF_F_TSO | NETIF_F_FRAGLIST | NETIF_F_IPV6_CSUM |
+ NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_SG |
+ NETIF_F_TSO | NETIF_F_FRAGLIST |
+ NETIF_F_IPV6_CSUM | NETIF_F_TSO6 |
+ NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
+ NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
+
+ if (tp->version == RTL_VER_01) {
+ netdev->features &= ~NETIF_F_RXCSUM;
+ netdev->hw_features &= ~NETIF_F_RXCSUM;
+ }
+
+ netdev->ethtool_ops = &ops;
+ netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
+
+ tp->mii.dev = netdev;
+ tp->mii.mdio_read = read_mii_word;
+ tp->mii.mdio_write = write_mii_word;
+ tp->mii.phy_id_mask = 0x3f;
+ tp->mii.reg_num_mask = 0x1f;
+ tp->mii.phy_id = R8152_PHY_ID;
+
+ switch (udev->speed) {
+ case USB_SPEED_SUPER:
+ tp->coalesce = COALESCE_SUPER;
+ break;
+ case USB_SPEED_HIGH:
+ tp->coalesce = COALESCE_HIGH;
+ break;
+ default:
+ tp->coalesce = COALESCE_SLOW;
+ break;
+ }
+
+ intf->needs_remote_wakeup = 1;
+
+ tp->rtl_ops.init(tp);
+ set_ethernet_addr(tp);
+
+ usb_set_intfdata(intf, tp);
+ netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
+
+ ret = register_netdev(netdev);
+ if (ret != 0) {
+ netif_err(tp, probe, netdev, "couldn't register the device\n");
+ goto out1;
+ }
+
+ if (!rtl_can_wakeup(tp))
+ __rtl_set_wol(tp, 0);
+
+ tp->saved_wolopts = __rtl_get_wol(tp);
+ if (tp->saved_wolopts)
+ device_set_wakeup_enable(&udev->dev, true);
+ else
+ device_set_wakeup_enable(&udev->dev, false);
+
+ netif_info(tp, probe, netdev, "%s\n", DRIVER_VERSION);
+
+ return 0;
+
+out1:
+ netif_napi_del(&tp->napi);
+ usb_set_intfdata(intf, NULL);
+out:
+ free_netdev(netdev);
+ return ret;
+}
+
+static void rtl8152_disconnect(struct usb_interface *intf)
+{
+ struct r8152 *tp = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (tp) {
+ struct usb_device *udev = tp->udev;
+
+ if (udev->state == USB_STATE_NOTATTACHED)
+ set_bit(RTL8152_UNPLUG, &tp->flags);
+
+ netif_napi_del(&tp->napi);
+ unregister_netdev(tp->netdev);
+ tp->rtl_ops.unload(tp);
+ free_netdev(tp->netdev);
+ }
+}
+
+#define REALTEK_USB_DEVICE(vend, prod) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_CLASS, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC \
+}, \
+{ \
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \
+ USB_DEVICE_ID_MATCH_DEVICE, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceClass = USB_CLASS_COMM, \
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE
+
+/* table of devices that work with this driver */
+static struct usb_device_id rtl8152_table[] = {
+ {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
+ {REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
+ {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
+ {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205)},
+ {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)},
+ {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, rtl8152_table);
+
+static struct usb_driver rtl8152_driver = {
+ .name = MODULENAME,
+ .id_table = rtl8152_table,
+ .probe = rtl8152_probe,
+ .disconnect = rtl8152_disconnect,
+ .suspend = rtl8152_suspend,
+ .resume = rtl8152_resume,
+ .reset_resume = rtl8152_reset_resume,
+ .pre_reset = rtl8152_pre_reset,
+ .post_reset = rtl8152_post_reset,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(rtl8152_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
new file mode 100644
index 0000000..524a47a
--- /dev/null
+++ b/drivers/net/usb/rndis_host.c
@@ -0,0 +1,649 @@
+/*
+ * Host Side support for RNDIS Networking Links
+ * Copyright (C) 2005 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/rndis_host.h>
+
+
+/*
+ * RNDIS is NDIS remoted over USB. It's a MSFT variant of CDC ACM ... of
+ * course ACM was intended for modems, not Ethernet links! USB's standard
+ * for Ethernet links is "CDC Ethernet", which is significantly simpler.
+ *
+ * NOTE that Microsoft's "RNDIS 1.0" specification is incomplete. Issues
+ * include:
+ * - Power management in particular relies on information that's scattered
+ * through other documentation, and which is incomplete or incorrect even
+ * there.
+ * - There are various undocumented protocol requirements, such as the
+ * need to send unused garbage in control-OUT messages.
+ * - In some cases, MS-Windows will emit undocumented requests; this
+ * matters more to peripheral implementations than host ones.
+ *
+ * Moreover there's a no-open-specs variant of RNDIS called "ActiveSync".
+ *
+ * For these reasons and others, ** USE OF RNDIS IS STRONGLY DISCOURAGED ** in
+ * favor of such non-proprietary alternatives as CDC Ethernet or the newer (and
+ * currently rare) "Ethernet Emulation Model" (EEM).
+ */
+
+/*
+ * RNDIS notifications from device: command completion; "reverse"
+ * keepalives; etc
+ */
+void rndis_status(struct usbnet *dev, struct urb *urb)
+{
+ netdev_dbg(dev->net, "rndis status urb, len %d stat %d\n",
+ urb->actual_length, urb->status);
+ // FIXME for keepalives, respond immediately (asynchronously)
+ // if not an RNDIS status, do like cdc_status(dev,urb) does
+}
+EXPORT_SYMBOL_GPL(rndis_status);
+
+/*
+ * RNDIS indicate messages.
+ */
+static void rndis_msg_indicate(struct usbnet *dev, struct rndis_indicate *msg,
+ int buflen)
+{
+ struct cdc_state *info = (void *)&dev->data;
+ struct device *udev = &info->control->dev;
+
+ if (dev->driver_info->indication) {
+ dev->driver_info->indication(dev, msg, buflen);
+ } else {
+ u32 status = le32_to_cpu(msg->status);
+
+ switch (status) {
+ case RNDIS_STATUS_MEDIA_CONNECT:
+ dev_info(udev, "rndis media connect\n");
+ break;
+ case RNDIS_STATUS_MEDIA_DISCONNECT:
+ dev_info(udev, "rndis media disconnect\n");
+ break;
+ default:
+ dev_info(udev, "rndis indication: 0x%08x\n", status);
+ }
+ }
+}
+
+/*
+ * RPC done RNDIS-style. Caller guarantees:
+ * - message is properly byteswapped
+ * - there's no other request pending
+ * - buf can hold up to 1KB response (required by RNDIS spec)
+ * On return, the first few entries are already byteswapped.
+ *
+ * Call context is likely probe(), before interface name is known,
+ * which is why we won't try to use it in the diagnostics.
+ */
+int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
+{
+ struct cdc_state *info = (void *) &dev->data;
+ struct usb_cdc_notification notification;
+ int master_ifnum;
+ int retval;
+ int partial;
+ unsigned count;
+ u32 xid = 0, msg_len, request_id, msg_type, rsp,
+ status;
+
+ /* REVISIT when this gets called from contexts other than probe() or
+ * disconnect(): either serialize, or dispatch responses on xid
+ */
+
+ msg_type = le32_to_cpu(buf->msg_type);
+
+ /* Issue the request; xid is unique, don't bother byteswapping it */
+ if (likely(msg_type != RNDIS_MSG_HALT && msg_type != RNDIS_MSG_RESET)) {
+ xid = dev->xid++;
+ if (!xid)
+ xid = dev->xid++;
+ buf->request_id = (__force __le32) xid;
+ }
+ master_ifnum = info->control->cur_altsetting->desc.bInterfaceNumber;
+ retval = usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ USB_CDC_SEND_ENCAPSULATED_COMMAND,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, master_ifnum,
+ buf, le32_to_cpu(buf->msg_len),
+ RNDIS_CONTROL_TIMEOUT_MS);
+ if (unlikely(retval < 0 || xid == 0))
+ return retval;
+
+ /* Some devices don't respond on the control channel until
+ * polled on the status channel, so do that first. */
+ if (dev->driver_info->data & RNDIS_DRIVER_DATA_POLL_STATUS) {
+ retval = usb_interrupt_msg(
+ dev->udev,
+ usb_rcvintpipe(dev->udev,
+ dev->status->desc.bEndpointAddress),
+ ¬ification, sizeof(notification), &partial,
+ RNDIS_CONTROL_TIMEOUT_MS);
+ if (unlikely(retval < 0))
+ return retval;
+ }
+
+ /* Poll the control channel; the request probably completed immediately */
+ rsp = le32_to_cpu(buf->msg_type) | RNDIS_MSG_COMPLETION;
+ for (count = 0; count < 10; count++) {
+ memset(buf, 0, CONTROL_BUFFER_SIZE);
+ retval = usb_control_msg(dev->udev,
+ usb_rcvctrlpipe(dev->udev, 0),
+ USB_CDC_GET_ENCAPSULATED_RESPONSE,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, master_ifnum,
+ buf, buflen,
+ RNDIS_CONTROL_TIMEOUT_MS);
+ if (likely(retval >= 8)) {
+ msg_type = le32_to_cpu(buf->msg_type);
+ msg_len = le32_to_cpu(buf->msg_len);
+ status = le32_to_cpu(buf->status);
+ request_id = (__force u32) buf->request_id;
+ if (likely(msg_type == rsp)) {
+ if (likely(request_id == xid)) {
+ if (unlikely(rsp == RNDIS_MSG_RESET_C))
+ return 0;
+ if (likely(RNDIS_STATUS_SUCCESS ==
+ status))
+ return 0;
+ dev_dbg(&info->control->dev,
+ "rndis reply status %08x\n",
+ status);
+ return -EL3RST;
+ }
+ dev_dbg(&info->control->dev,
+ "rndis reply id %d expected %d\n",
+ request_id, xid);
+ /* then likely retry */
+ } else switch (msg_type) {
+ case RNDIS_MSG_INDICATE: /* fault/event */
+ rndis_msg_indicate(dev, (void *)buf, buflen);
+ break;
+ case RNDIS_MSG_KEEPALIVE: { /* ping */
+ struct rndis_keepalive_c *msg = (void *)buf;
+
+ msg->msg_type = cpu_to_le32(RNDIS_MSG_KEEPALIVE_C);
+ msg->msg_len = cpu_to_le32(sizeof *msg);
+ msg->status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+ retval = usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ USB_CDC_SEND_ENCAPSULATED_COMMAND,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, master_ifnum,
+ msg, sizeof *msg,
+ RNDIS_CONTROL_TIMEOUT_MS);
+ if (unlikely(retval < 0))
+ dev_dbg(&info->control->dev,
+ "rndis keepalive err %d\n",
+ retval);
+ }
+ break;
+ default:
+ dev_dbg(&info->control->dev,
+ "unexpected rndis msg %08x len %d\n",
+ le32_to_cpu(buf->msg_type), msg_len);
+ }
+ } else {
+ /* device probably issued a protocol stall; ignore */
+ dev_dbg(&info->control->dev,
+ "rndis response error, code %d\n", retval);
+ }
+ msleep(20);
+ }
+ dev_dbg(&info->control->dev, "rndis response timeout\n");
+ return -ETIMEDOUT;
+}
+EXPORT_SYMBOL_GPL(rndis_command);
+
+/*
+ * rndis_query:
+ *
+ * Performs a query for @oid along with 0 or more bytes of payload as
+ * specified by @in_len. If @reply_len is not set to -1 then the reply
+ * length is checked against this value, resulting in an error if it
+ * doesn't match.
+ *
+ * NOTE: Adding a payload exactly or greater than the size of the expected
+ * response payload is an evident requirement MSFT added for ActiveSync.
+ *
+ * The only exception is for OIDs that return a variably sized response,
+ * in which case no payload should be added. This undocumented (and
+ * nonsensical!) issue was found by sniffing protocol requests from the
+ * ActiveSync 4.1 Windows driver.
+ */
+static int rndis_query(struct usbnet *dev, struct usb_interface *intf,
+ void *buf, u32 oid, u32 in_len,
+ void **reply, int *reply_len)
+{
+ int retval;
+ union {
+ void *buf;
+ struct rndis_msg_hdr *header;
+ struct rndis_query *get;
+ struct rndis_query_c *get_c;
+ } u;
+ u32 off, len;
+
+ u.buf = buf;
+
+ memset(u.get, 0, sizeof *u.get + in_len);
+ u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
+ u.get->msg_len = cpu_to_le32(sizeof *u.get + in_len);
+ u.get->oid = cpu_to_le32(oid);
+ u.get->len = cpu_to_le32(in_len);
+ u.get->offset = cpu_to_le32(20);
+
+ retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
+ if (unlikely(retval < 0)) {
+ dev_err(&intf->dev, "RNDIS_MSG_QUERY(0x%08x) failed, %d\n",
+ oid, retval);
+ return retval;
+ }
+
+ off = le32_to_cpu(u.get_c->offset);
+ len = le32_to_cpu(u.get_c->len);
+ if (unlikely((8 + off + len) > CONTROL_BUFFER_SIZE))
+ goto response_error;
+
+ if (*reply_len != -1 && len != *reply_len)
+ goto response_error;
+
+ *reply = (unsigned char *) &u.get_c->request_id + off;
+ *reply_len = len;
+
+ return retval;
+
+response_error:
+ dev_err(&intf->dev, "RNDIS_MSG_QUERY(0x%08x) "
+ "invalid response - off %d len %d\n",
+ oid, off, len);
+ return -EDOM;
+}
+
+/* same as usbnet_netdev_ops but MTU change not allowed */
+static const struct net_device_ops rndis_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+int
+generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
+{
+ int retval;
+ struct net_device *net = dev->net;
+ struct cdc_state *info = (void *) &dev->data;
+ union {
+ void *buf;
+ struct rndis_msg_hdr *header;
+ struct rndis_init *init;
+ struct rndis_init_c *init_c;
+ struct rndis_query *get;
+ struct rndis_query_c *get_c;
+ struct rndis_set *set;
+ struct rndis_set_c *set_c;
+ struct rndis_halt *halt;
+ } u;
+ u32 tmp;
+ __le32 phym_unspec, *phym;
+ int reply_len;
+ unsigned char *bp;
+
+ /* we can't rely on i/o from stack working, or stack allocation */
+ u.buf = kmalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
+ if (!u.buf)
+ return -ENOMEM;
+ retval = usbnet_generic_cdc_bind(dev, intf);
+ if (retval < 0)
+ goto fail;
+
+ u.init->msg_type = cpu_to_le32(RNDIS_MSG_INIT);
+ u.init->msg_len = cpu_to_le32(sizeof *u.init);
+ u.init->major_version = cpu_to_le32(1);
+ u.init->minor_version = cpu_to_le32(0);
+
+ /* max transfer (in spec) is 0x4000 at full speed, but for
+ * TX we'll stick to one Ethernet packet plus RNDIS framing.
+ * For RX we handle drivers that zero-pad to end-of-packet.
+ * Don't let userspace change these settings.
+ *
+ * NOTE: there still seems to be wierdness here, as if we need
+ * to do some more things to make sure WinCE targets accept this.
+ * They default to jumbograms of 8KB or 16KB, which is absurd
+ * for such low data rates and which is also more than Linux
+ * can usually expect to allocate for SKB data...
+ */
+ net->hard_header_len += sizeof (struct rndis_data_hdr);
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+
+ dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
+ if (dev->maxpacket == 0) {
+ netif_dbg(dev, probe, dev->net,
+ "dev->maxpacket can't be 0\n");
+ retval = -EINVAL;
+ goto fail_and_release;
+ }
+
+ dev->rx_urb_size = dev->hard_mtu + (dev->maxpacket + 1);
+ dev->rx_urb_size &= ~(dev->maxpacket - 1);
+ u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
+
+ net->netdev_ops = &rndis_netdev_ops;
+
+ retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
+ if (unlikely(retval < 0)) {
+ /* it might not even be an RNDIS device!! */
+ dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
+ goto fail_and_release;
+ }
+ tmp = le32_to_cpu(u.init_c->max_transfer_size);
+ if (tmp < dev->hard_mtu) {
+ if (tmp <= net->hard_header_len) {
+ dev_err(&intf->dev,
+ "dev can't take %u byte packets (max %u)\n",
+ dev->hard_mtu, tmp);
+ retval = -EINVAL;
+ goto halt_fail_and_release;
+ }
+ dev_warn(&intf->dev,
+ "dev can't take %u byte packets (max %u), "
+ "adjusting MTU to %u\n",
+ dev->hard_mtu, tmp, tmp - net->hard_header_len);
+ dev->hard_mtu = tmp;
+ net->mtu = dev->hard_mtu - net->hard_header_len;
+ }
+
+ /* REVISIT: peripheral "alignment" request is ignored ... */
+ dev_dbg(&intf->dev,
+ "hard mtu %u (%u from dev), rx buflen %Zu, align %d\n",
+ dev->hard_mtu, tmp, dev->rx_urb_size,
+ 1 << le32_to_cpu(u.init_c->packet_alignment));
+
+ /* module has some device initialization code needs to be done right
+ * after RNDIS_INIT */
+ if (dev->driver_info->early_init &&
+ dev->driver_info->early_init(dev) != 0)
+ goto halt_fail_and_release;
+
+ /* Check physical medium */
+ phym = NULL;
+ reply_len = sizeof *phym;
+ retval = rndis_query(dev, intf, u.buf,
+ RNDIS_OID_GEN_PHYSICAL_MEDIUM,
+ 0, (void **) &phym, &reply_len);
+ if (retval != 0 || !phym) {
+ /* OID is optional so don't fail here. */
+ phym_unspec = cpu_to_le32(RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED);
+ phym = &phym_unspec;
+ }
+ if ((flags & FLAG_RNDIS_PHYM_WIRELESS) &&
+ le32_to_cpup(phym) != RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
+ netif_dbg(dev, probe, dev->net,
+ "driver requires wireless physical medium, but device is not\n");
+ retval = -ENODEV;
+ goto halt_fail_and_release;
+ }
+ if ((flags & FLAG_RNDIS_PHYM_NOT_WIRELESS) &&
+ le32_to_cpup(phym) == RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
+ netif_dbg(dev, probe, dev->net,
+ "driver requires non-wireless physical medium, but device is wireless.\n");
+ retval = -ENODEV;
+ goto halt_fail_and_release;
+ }
+
+ /* Get designated host ethernet address */
+ reply_len = ETH_ALEN;
+ retval = rndis_query(dev, intf, u.buf,
+ RNDIS_OID_802_3_PERMANENT_ADDRESS,
+ 48, (void **) &bp, &reply_len);
+ if (unlikely(retval< 0)) {
+ dev_err(&intf->dev, "rndis get ethaddr, %d\n", retval);
+ goto halt_fail_and_release;
+ }
+ memcpy(net->dev_addr, bp, ETH_ALEN);
+
+ /* set a nonzero filter to enable data transfers */
+ memset(u.set, 0, sizeof *u.set);
+ u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
+ u.set->msg_len = cpu_to_le32(4 + sizeof *u.set);
+ u.set->oid = cpu_to_le32(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
+ u.set->len = cpu_to_le32(4);
+ u.set->offset = cpu_to_le32((sizeof *u.set) - 8);
+ *(__le32 *)(u.buf + sizeof *u.set) = cpu_to_le32(RNDIS_DEFAULT_FILTER);
+
+ retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
+ if (unlikely(retval < 0)) {
+ dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
+ goto halt_fail_and_release;
+ }
+
+ retval = 0;
+
+ kfree(u.buf);
+ return retval;
+
+halt_fail_and_release:
+ memset(u.halt, 0, sizeof *u.halt);
+ u.halt->msg_type = cpu_to_le32(RNDIS_MSG_HALT);
+ u.halt->msg_len = cpu_to_le32(sizeof *u.halt);
+ (void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
+fail_and_release:
+ usb_set_intfdata(info->data, NULL);
+ usb_driver_release_interface(driver_of(intf), info->data);
+ info->data = NULL;
+fail:
+ kfree(u.buf);
+ return retval;
+}
+EXPORT_SYMBOL_GPL(generic_rndis_bind);
+
+static int rndis_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ return generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_NOT_WIRELESS);
+}
+
+void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct rndis_halt *halt;
+
+ /* try to clear any rndis state/activity (no i/o from stack!) */
+ halt = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
+ if (halt) {
+ halt->msg_type = cpu_to_le32(RNDIS_MSG_HALT);
+ halt->msg_len = cpu_to_le32(sizeof *halt);
+ (void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);
+ kfree(halt);
+ }
+
+ usbnet_cdc_unbind(dev, intf);
+}
+EXPORT_SYMBOL_GPL(rndis_unbind);
+
+/*
+ * DATA -- host must not write zlps
+ */
+int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ /* peripheral may have batched packets to us... */
+ while (likely(skb->len)) {
+ struct rndis_data_hdr *hdr = (void *)skb->data;
+ struct sk_buff *skb2;
+ u32 msg_type, msg_len, data_offset, data_len;
+
+ msg_type = le32_to_cpu(hdr->msg_type);
+ msg_len = le32_to_cpu(hdr->msg_len);
+ data_offset = le32_to_cpu(hdr->data_offset);
+ data_len = le32_to_cpu(hdr->data_len);
+
+ /* don't choke if we see oob, per-packet data, etc */
+ if (unlikely(msg_type != RNDIS_MSG_PACKET || skb->len < msg_len
+ || (data_offset + data_len + 8) > msg_len)) {
+ dev->net->stats.rx_frame_errors++;
+ netdev_dbg(dev->net, "bad rndis message %d/%d/%d/%d, len %d\n",
+ le32_to_cpu(hdr->msg_type),
+ msg_len, data_offset, data_len, skb->len);
+ return 0;
+ }
+ skb_pull(skb, 8 + data_offset);
+
+ /* at most one packet left? */
+ if (likely((data_len - skb->len) <= sizeof *hdr)) {
+ skb_trim(skb, data_len);
+ break;
+ }
+
+ /* try to return all the packets in the batch */
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!skb2))
+ break;
+ skb_pull(skb, msg_len - sizeof *hdr);
+ skb_trim(skb2, data_len);
+ usbnet_skb_return(dev, skb2);
+ }
+
+ /* caller will usbnet_skb_return the remaining packet */
+ return 1;
+}
+EXPORT_SYMBOL_GPL(rndis_rx_fixup);
+
+struct sk_buff *
+rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ struct rndis_data_hdr *hdr;
+ struct sk_buff *skb2;
+ unsigned len = skb->len;
+
+ if (likely(!skb_cloned(skb))) {
+ int room = skb_headroom(skb);
+
+ /* enough head room as-is? */
+ if (unlikely((sizeof *hdr) <= room))
+ goto fill;
+
+ /* enough room, but needs to be readjusted? */
+ room += skb_tailroom(skb);
+ if (likely((sizeof *hdr) <= room)) {
+ skb->data = memmove(skb->head + sizeof *hdr,
+ skb->data, len);
+ skb_set_tail_pointer(skb, len);
+ goto fill;
+ }
+ }
+
+ /* create a new skb, with the correct size (and tailpad) */
+ skb2 = skb_copy_expand(skb, sizeof *hdr, 1, flags);
+ dev_kfree_skb_any(skb);
+ if (unlikely(!skb2))
+ return skb2;
+ skb = skb2;
+
+ /* fill out the RNDIS header. we won't bother trying to batch
+ * packets; Linux minimizes wasted bandwidth through tx queues.
+ */
+fill:
+ hdr = (void *) __skb_push(skb, sizeof *hdr);
+ memset(hdr, 0, sizeof *hdr);
+ hdr->msg_type = cpu_to_le32(RNDIS_MSG_PACKET);
+ hdr->msg_len = cpu_to_le32(skb->len);
+ hdr->data_offset = cpu_to_le32(sizeof(*hdr) - 8);
+ hdr->data_len = cpu_to_le32(len);
+
+ /* FIXME make the last packet always be short ... */
+ return skb;
+}
+EXPORT_SYMBOL_GPL(rndis_tx_fixup);
+
+
+static const struct driver_info rndis_info = {
+ .description = "RNDIS device",
+ .flags = FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
+ .bind = rndis_bind,
+ .unbind = rndis_unbind,
+ .status = rndis_status,
+ .rx_fixup = rndis_rx_fixup,
+ .tx_fixup = rndis_tx_fixup,
+};
+
+static const struct driver_info rndis_poll_status_info = {
+ .description = "RNDIS device (poll status before control)",
+ .flags = FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
+ .data = RNDIS_DRIVER_DATA_POLL_STATUS,
+ .bind = rndis_bind,
+ .unbind = rndis_unbind,
+ .status = rndis_status,
+ .rx_fixup = rndis_rx_fixup,
+ .tx_fixup = rndis_tx_fixup,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static const struct usb_device_id products [] = {
+{
+ /* 2Wire HomePortal 1000SW */
+ USB_DEVICE_AND_INTERFACE_INFO(0x1630, 0x0042,
+ USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
+ .driver_info = (unsigned long) &rndis_poll_status_info,
+}, {
+ /* RNDIS is MSFT's un-official variant of CDC ACM */
+ USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
+ .driver_info = (unsigned long) &rndis_info,
+}, {
+ /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
+ USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
+ .driver_info = (unsigned long) &rndis_poll_status_info,
+}, {
+ /* RNDIS for tethering */
+ USB_INTERFACE_INFO(USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
+ .driver_info = (unsigned long) &rndis_info,
+},
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver rndis_driver = {
+ .name = "rndis_host",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(rndis_driver);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("USB Host side RNDIS driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
new file mode 100644
index 0000000..3967298
--- /dev/null
+++ b/drivers/net/usb/rtl8150.c
@@ -0,0 +1,969 @@
+/*
+ * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <asm/uaccess.h>
+
+/* Version Information */
+#define DRIVER_VERSION "v0.6.2 (2004/08/27)"
+#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
+#define DRIVER_DESC "rtl8150 based usb-ethernet driver"
+
+#define IDR 0x0120
+#define MAR 0x0126
+#define CR 0x012e
+#define TCR 0x012f
+#define RCR 0x0130
+#define TSR 0x0132
+#define RSR 0x0133
+#define CON0 0x0135
+#define CON1 0x0136
+#define MSR 0x0137
+#define PHYADD 0x0138
+#define PHYDAT 0x0139
+#define PHYCNT 0x013b
+#define GPPC 0x013d
+#define BMCR 0x0140
+#define BMSR 0x0142
+#define ANAR 0x0144
+#define ANLP 0x0146
+#define AER 0x0148
+#define CSCR 0x014C /* This one has the link status */
+#define CSCR_LINK_STATUS (1 << 3)
+
+#define IDR_EEPROM 0x1202
+
+#define PHY_READ 0
+#define PHY_WRITE 0x20
+#define PHY_GO 0x40
+
+#define MII_TIMEOUT 10
+#define INTBUFSIZE 8
+
+#define RTL8150_REQT_READ 0xc0
+#define RTL8150_REQT_WRITE 0x40
+#define RTL8150_REQ_GET_REGS 0x05
+#define RTL8150_REQ_SET_REGS 0x05
+
+
+/* Transmit status register errors */
+#define TSR_ECOL (1<<5)
+#define TSR_LCOL (1<<4)
+#define TSR_LOSS_CRS (1<<3)
+#define TSR_JBR (1<<2)
+#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
+/* Receive status register errors */
+#define RSR_CRC (1<<2)
+#define RSR_FAE (1<<1)
+#define RSR_ERRORS (RSR_CRC | RSR_FAE)
+
+/* Media status register definitions */
+#define MSR_DUPLEX (1<<4)
+#define MSR_SPEED (1<<3)
+#define MSR_LINK (1<<2)
+
+/* Interrupt pipe data */
+#define INT_TSR 0x00
+#define INT_RSR 0x01
+#define INT_MSR 0x02
+#define INT_WAKSR 0x03
+#define INT_TXOK_CNT 0x04
+#define INT_RXLOST_CNT 0x05
+#define INT_CRERR_CNT 0x06
+#define INT_COL_CNT 0x07
+
+
+#define RTL8150_MTU 1540
+#define RTL8150_TX_TIMEOUT (HZ)
+#define RX_SKB_POOL_SIZE 4
+
+/* rtl8150 flags */
+#define RTL8150_HW_CRC 0
+#define RX_REG_SET 1
+#define RTL8150_UNPLUG 2
+#define RX_URB_FAIL 3
+
+/* Define these values to match your device */
+#define VENDOR_ID_REALTEK 0x0bda
+#define VENDOR_ID_MELCO 0x0411
+#define VENDOR_ID_MICRONET 0x3980
+#define VENDOR_ID_LONGSHINE 0x07b8
+#define VENDOR_ID_OQO 0x1557
+#define VENDOR_ID_ZYXEL 0x0586
+
+#define PRODUCT_ID_RTL8150 0x8150
+#define PRODUCT_ID_LUAKTX 0x0012
+#define PRODUCT_ID_LCS8138TX 0x401a
+#define PRODUCT_ID_SP128AR 0x0003
+#define PRODUCT_ID_PRESTIGE 0x401a
+
+#undef EEPROM_WRITE
+
+/* table of devices that work with this driver */
+static struct usb_device_id rtl8150_table[] = {
+ {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)},
+ {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)},
+ {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)},
+ {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)},
+ {USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)},
+ {USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, rtl8150_table);
+
+struct rtl8150 {
+ unsigned long flags;
+ struct usb_device *udev;
+ struct tasklet_struct tl;
+ struct net_device *netdev;
+ struct urb *rx_urb, *tx_urb, *intr_urb;
+ struct sk_buff *tx_skb, *rx_skb;
+ struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE];
+ spinlock_t rx_pool_lock;
+ struct usb_ctrlrequest dr;
+ int intr_interval;
+ u8 *intr_buff;
+ u8 phy;
+};
+
+typedef struct rtl8150 rtl8150_t;
+
+struct async_req {
+ struct usb_ctrlrequest dr;
+ u16 rx_creg;
+};
+
+static const char driver_name [] = "rtl8150";
+
+/*
+**
+** device related part of the code
+**
+*/
+static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
+{
+ void *buf;
+ int ret;
+
+ buf = kmalloc(size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
+ indx, 0, buf, size, 500);
+ if (ret > 0 && ret <= size)
+ memcpy(data, buf, ret);
+ kfree(buf);
+ return ret;
+}
+
+static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data)
+{
+ void *buf;
+ int ret;
+
+ buf = kmemdup(data, size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
+ indx, 0, buf, size, 500);
+ kfree(buf);
+ return ret;
+}
+
+static void async_set_reg_cb(struct urb *urb)
+{
+ struct async_req *req = (struct async_req *)urb->context;
+ int status = urb->status;
+
+ if (status < 0)
+ dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
+ kfree(req);
+ usb_free_urb(urb);
+}
+
+static int async_set_registers(rtl8150_t *dev, u16 indx, u16 size, u16 reg)
+{
+ int res = -ENOMEM;
+ struct urb *async_urb;
+ struct async_req *req;
+
+ req = kmalloc(sizeof(struct async_req), GFP_ATOMIC);
+ if (req == NULL)
+ return res;
+ async_urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (async_urb == NULL) {
+ kfree(req);
+ return res;
+ }
+ req->rx_creg = cpu_to_le16(reg);
+ req->dr.bRequestType = RTL8150_REQT_WRITE;
+ req->dr.bRequest = RTL8150_REQ_SET_REGS;
+ req->dr.wIndex = 0;
+ req->dr.wValue = cpu_to_le16(indx);
+ req->dr.wLength = cpu_to_le16(size);
+ usb_fill_control_urb(async_urb, dev->udev,
+ usb_sndctrlpipe(dev->udev, 0), (void *)&req->dr,
+ &req->rx_creg, size, async_set_reg_cb, req);
+ res = usb_submit_urb(async_urb, GFP_ATOMIC);
+ if (res) {
+ if (res == -ENODEV)
+ netif_device_detach(dev->netdev);
+ dev_err(&dev->udev->dev, "%s failed with %d\n", __func__, res);
+ }
+ return res;
+}
+
+static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg)
+{
+ int i;
+ u8 data[3], tmp;
+
+ data[0] = phy;
+ data[1] = data[2] = 0;
+ tmp = indx | PHY_READ | PHY_GO;
+ i = 0;
+
+ set_registers(dev, PHYADD, sizeof(data), data);
+ set_registers(dev, PHYCNT, 1, &tmp);
+ do {
+ get_registers(dev, PHYCNT, 1, data);
+ } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
+
+ if (i <= MII_TIMEOUT) {
+ get_registers(dev, PHYDAT, 2, data);
+ *reg = data[0] | (data[1] << 8);
+ return 0;
+ } else
+ return 1;
+}
+
+static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg)
+{
+ int i;
+ u8 data[3], tmp;
+
+ data[0] = phy;
+ data[1] = reg & 0xff;
+ data[2] = (reg >> 8) & 0xff;
+ tmp = indx | PHY_WRITE | PHY_GO;
+ i = 0;
+
+ set_registers(dev, PHYADD, sizeof(data), data);
+ set_registers(dev, PHYCNT, 1, &tmp);
+ do {
+ get_registers(dev, PHYCNT, 1, data);
+ } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
+
+ if (i <= MII_TIMEOUT)
+ return 0;
+ else
+ return 1;
+}
+
+static inline void set_ethernet_addr(rtl8150_t * dev)
+{
+ u8 node_id[6];
+
+ get_registers(dev, IDR, sizeof(node_id), node_id);
+ memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id));
+}
+
+static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct sockaddr *addr = p;
+ rtl8150_t *dev = netdev_priv(netdev);
+
+ if (netif_running(netdev))
+ return -EBUSY;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ netdev_dbg(netdev, "Setting MAC address to %pM\n", netdev->dev_addr);
+ /* Set the IDR registers. */
+ set_registers(dev, IDR, netdev->addr_len, netdev->dev_addr);
+#ifdef EEPROM_WRITE
+ {
+ int i;
+ u8 cr;
+ /* Get the CR contents. */
+ get_registers(dev, CR, 1, &cr);
+ /* Set the WEPROM bit (eeprom write enable). */
+ cr |= 0x20;
+ set_registers(dev, CR, 1, &cr);
+ /* Write the MAC address into eeprom. Eeprom writes must be word-sized,
+ so we need to split them up. */
+ for (i = 0; i * 2 < netdev->addr_len; i++) {
+ set_registers(dev, IDR_EEPROM + (i * 2), 2,
+ netdev->dev_addr + (i * 2));
+ }
+ /* Clear the WEPROM bit (preventing accidental eeprom writes). */
+ cr &= 0xdf;
+ set_registers(dev, CR, 1, &cr);
+ }
+#endif
+ return 0;
+}
+
+static int rtl8150_reset(rtl8150_t * dev)
+{
+ u8 data = 0x10;
+ int i = HZ;
+
+ set_registers(dev, CR, 1, &data);
+ do {
+ get_registers(dev, CR, 1, &data);
+ } while ((data & 0x10) && --i);
+
+ return (i > 0) ? 1 : 0;
+}
+
+static int alloc_all_urbs(rtl8150_t * dev)
+{
+ dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->rx_urb)
+ return 0;
+ dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->tx_urb) {
+ usb_free_urb(dev->rx_urb);
+ return 0;
+ }
+ dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->intr_urb) {
+ usb_free_urb(dev->rx_urb);
+ usb_free_urb(dev->tx_urb);
+ return 0;
+ }
+
+ return 1;
+}
+
+static void free_all_urbs(rtl8150_t * dev)
+{
+ usb_free_urb(dev->rx_urb);
+ usb_free_urb(dev->tx_urb);
+ usb_free_urb(dev->intr_urb);
+}
+
+static void unlink_all_urbs(rtl8150_t * dev)
+{
+ usb_kill_urb(dev->rx_urb);
+ usb_kill_urb(dev->tx_urb);
+ usb_kill_urb(dev->intr_urb);
+}
+
+static inline struct sk_buff *pull_skb(rtl8150_t *dev)
+{
+ struct sk_buff *skb;
+ int i;
+
+ for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
+ if (dev->rx_skb_pool[i]) {
+ skb = dev->rx_skb_pool[i];
+ dev->rx_skb_pool[i] = NULL;
+ return skb;
+ }
+ }
+ return NULL;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ rtl8150_t *dev;
+ unsigned pkt_len, res;
+ struct sk_buff *skb;
+ struct net_device *netdev;
+ u16 rx_stat;
+ int status = urb->status;
+ int result;
+
+ dev = urb->context;
+ if (!dev)
+ return;
+ if (test_bit(RTL8150_UNPLUG, &dev->flags))
+ return;
+ netdev = dev->netdev;
+ if (!netif_device_present(netdev))
+ return;
+
+ switch (status) {
+ case 0:
+ break;
+ case -ENOENT:
+ return; /* the urb is in unlink state */
+ case -ETIME:
+ if (printk_ratelimit())
+ dev_warn(&urb->dev->dev, "may be reset is needed?..\n");
+ goto goon;
+ default:
+ if (printk_ratelimit())
+ dev_warn(&urb->dev->dev, "Rx status %d\n", status);
+ goto goon;
+ }
+
+ if (!dev->rx_skb)
+ goto resched;
+ /* protect against short packets (tell me why we got some?!?) */
+ if (urb->actual_length < 4)
+ goto goon;
+
+ res = urb->actual_length;
+ rx_stat = le16_to_cpu(*(__le16 *)(urb->transfer_buffer + res - 4));
+ pkt_len = res - 4;
+
+ skb_put(dev->rx_skb, pkt_len);
+ dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev);
+ netif_rx(dev->rx_skb);
+ netdev->stats.rx_packets++;
+ netdev->stats.rx_bytes += pkt_len;
+
+ spin_lock(&dev->rx_pool_lock);
+ skb = pull_skb(dev);
+ spin_unlock(&dev->rx_pool_lock);
+ if (!skb)
+ goto resched;
+
+ dev->rx_skb = skb;
+goon:
+ usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
+ dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
+ result = usb_submit_urb(dev->rx_urb, GFP_ATOMIC);
+ if (result == -ENODEV)
+ netif_device_detach(dev->netdev);
+ else if (result) {
+ set_bit(RX_URB_FAIL, &dev->flags);
+ goto resched;
+ } else {
+ clear_bit(RX_URB_FAIL, &dev->flags);
+ }
+
+ return;
+resched:
+ tasklet_schedule(&dev->tl);
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ rtl8150_t *dev;
+ int status = urb->status;
+
+ dev = urb->context;
+ if (!dev)
+ return;
+ dev_kfree_skb_irq(dev->tx_skb);
+ if (!netif_device_present(dev->netdev))
+ return;
+ if (status)
+ dev_info(&urb->dev->dev, "%s: Tx status %d\n",
+ dev->netdev->name, status);
+ dev->netdev->trans_start = jiffies;
+ netif_wake_queue(dev->netdev);
+}
+
+static void intr_callback(struct urb *urb)
+{
+ rtl8150_t *dev;
+ __u8 *d;
+ int status = urb->status;
+ int res;
+
+ dev = urb->context;
+ if (!dev)
+ return;
+ switch (status) {
+ case 0: /* success */
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ /* -EPIPE: should clear the halt */
+ default:
+ dev_info(&urb->dev->dev, "%s: intr status %d\n",
+ dev->netdev->name, status);
+ goto resubmit;
+ }
+
+ d = urb->transfer_buffer;
+ if (d[0] & TSR_ERRORS) {
+ dev->netdev->stats.tx_errors++;
+ if (d[INT_TSR] & (TSR_ECOL | TSR_JBR))
+ dev->netdev->stats.tx_aborted_errors++;
+ if (d[INT_TSR] & TSR_LCOL)
+ dev->netdev->stats.tx_window_errors++;
+ if (d[INT_TSR] & TSR_LOSS_CRS)
+ dev->netdev->stats.tx_carrier_errors++;
+ }
+ /* Report link status changes to the network stack */
+ if ((d[INT_MSR] & MSR_LINK) == 0) {
+ if (netif_carrier_ok(dev->netdev)) {
+ netif_carrier_off(dev->netdev);
+ netdev_dbg(dev->netdev, "%s: LINK LOST\n", __func__);
+ }
+ } else {
+ if (!netif_carrier_ok(dev->netdev)) {
+ netif_carrier_on(dev->netdev);
+ netdev_dbg(dev->netdev, "%s: LINK CAME BACK\n", __func__);
+ }
+ }
+
+resubmit:
+ res = usb_submit_urb (urb, GFP_ATOMIC);
+ if (res == -ENODEV)
+ netif_device_detach(dev->netdev);
+ else if (res)
+ dev_err(&dev->udev->dev,
+ "can't resubmit intr, %s-%s/input0, status %d\n",
+ dev->udev->bus->bus_name, dev->udev->devpath, res);
+}
+
+static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ rtl8150_t *dev = usb_get_intfdata(intf);
+
+ netif_device_detach(dev->netdev);
+
+ if (netif_running(dev->netdev)) {
+ usb_kill_urb(dev->rx_urb);
+ usb_kill_urb(dev->intr_urb);
+ }
+ return 0;
+}
+
+static int rtl8150_resume(struct usb_interface *intf)
+{
+ rtl8150_t *dev = usb_get_intfdata(intf);
+
+ netif_device_attach(dev->netdev);
+ if (netif_running(dev->netdev)) {
+ dev->rx_urb->status = 0;
+ dev->rx_urb->actual_length = 0;
+ read_bulk_callback(dev->rx_urb);
+
+ dev->intr_urb->status = 0;
+ dev->intr_urb->actual_length = 0;
+ intr_callback(dev->intr_urb);
+ }
+ return 0;
+}
+
+/*
+**
+** network related part of the code
+**
+*/
+
+static void fill_skb_pool(rtl8150_t *dev)
+{
+ struct sk_buff *skb;
+ int i;
+
+ for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
+ if (dev->rx_skb_pool[i])
+ continue;
+ skb = dev_alloc_skb(RTL8150_MTU + 2);
+ if (!skb) {
+ return;
+ }
+ skb_reserve(skb, 2);
+ dev->rx_skb_pool[i] = skb;
+ }
+}
+
+static void free_skb_pool(rtl8150_t *dev)
+{
+ int i;
+
+ for (i = 0; i < RX_SKB_POOL_SIZE; i++)
+ if (dev->rx_skb_pool[i])
+ dev_kfree_skb(dev->rx_skb_pool[i]);
+}
+
+static void rx_fixup(unsigned long data)
+{
+ struct rtl8150 *dev = (struct rtl8150 *)data;
+ struct sk_buff *skb;
+ int status;
+
+ spin_lock_irq(&dev->rx_pool_lock);
+ fill_skb_pool(dev);
+ spin_unlock_irq(&dev->rx_pool_lock);
+ if (test_bit(RX_URB_FAIL, &dev->flags))
+ if (dev->rx_skb)
+ goto try_again;
+ spin_lock_irq(&dev->rx_pool_lock);
+ skb = pull_skb(dev);
+ spin_unlock_irq(&dev->rx_pool_lock);
+ if (skb == NULL)
+ goto tlsched;
+ dev->rx_skb = skb;
+ usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
+ dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
+try_again:
+ status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC);
+ if (status == -ENODEV) {
+ netif_device_detach(dev->netdev);
+ } else if (status) {
+ set_bit(RX_URB_FAIL, &dev->flags);
+ goto tlsched;
+ } else {
+ clear_bit(RX_URB_FAIL, &dev->flags);
+ }
+
+ return;
+tlsched:
+ tasklet_schedule(&dev->tl);
+}
+
+static int enable_net_traffic(rtl8150_t * dev)
+{
+ u8 cr, tcr, rcr, msr;
+
+ if (!rtl8150_reset(dev)) {
+ dev_warn(&dev->udev->dev, "device reset failed\n");
+ }
+ /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */
+ rcr = 0x9e;
+ tcr = 0xd8;
+ cr = 0x0c;
+ if (!(rcr & 0x80))
+ set_bit(RTL8150_HW_CRC, &dev->flags);
+ set_registers(dev, RCR, 1, &rcr);
+ set_registers(dev, TCR, 1, &tcr);
+ set_registers(dev, CR, 1, &cr);
+ get_registers(dev, MSR, 1, &msr);
+
+ return 0;
+}
+
+static void disable_net_traffic(rtl8150_t * dev)
+{
+ u8 cr;
+
+ get_registers(dev, CR, 1, &cr);
+ cr &= 0xf3;
+ set_registers(dev, CR, 1, &cr);
+}
+
+static void rtl8150_tx_timeout(struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ dev_warn(&netdev->dev, "Tx timeout.\n");
+ usb_unlink_urb(dev->tx_urb);
+ netdev->stats.tx_errors++;
+}
+
+static void rtl8150_set_multicast(struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ u16 rx_creg = 0x9e;
+
+ netif_stop_queue(netdev);
+ if (netdev->flags & IFF_PROMISC) {
+ rx_creg |= 0x0001;
+ dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name);
+ } else if (!netdev_mc_empty(netdev) ||
+ (netdev->flags & IFF_ALLMULTI)) {
+ rx_creg &= 0xfffe;
+ rx_creg |= 0x0002;
+ dev_info(&netdev->dev, "%s: allmulti set\n", netdev->name);
+ } else {
+ /* ~RX_MULTICAST, ~RX_PROMISCUOUS */
+ rx_creg &= 0x00fc;
+ }
+ async_set_registers(dev, RCR, sizeof(rx_creg), rx_creg);
+ netif_wake_queue(netdev);
+}
+
+static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ int count, res;
+
+ netif_stop_queue(netdev);
+ count = (skb->len < 60) ? 60 : skb->len;
+ count = (count & 0x3f) ? count : count + 1;
+ dev->tx_skb = skb;
+ usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2),
+ skb->data, count, write_bulk_callback, dev);
+ if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) {
+ /* Can we get/handle EPIPE here? */
+ if (res == -ENODEV)
+ netif_device_detach(dev->netdev);
+ else {
+ dev_warn(&netdev->dev, "failed tx_urb %d\n", res);
+ netdev->stats.tx_errors++;
+ netif_start_queue(netdev);
+ }
+ } else {
+ netdev->stats.tx_packets++;
+ netdev->stats.tx_bytes += skb->len;
+ netdev->trans_start = jiffies;
+ }
+
+ return NETDEV_TX_OK;
+}
+
+
+static void set_carrier(struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ short tmp;
+
+ get_registers(dev, CSCR, 2, &tmp);
+ if (tmp & CSCR_LINK_STATUS)
+ netif_carrier_on(netdev);
+ else
+ netif_carrier_off(netdev);
+}
+
+static int rtl8150_open(struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ int res;
+
+ if (dev->rx_skb == NULL)
+ dev->rx_skb = pull_skb(dev);
+ if (!dev->rx_skb)
+ return -ENOMEM;
+
+ set_registers(dev, IDR, 6, netdev->dev_addr);
+
+ usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
+ dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
+ if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(dev->netdev);
+ dev_warn(&netdev->dev, "rx_urb submit failed: %d\n", res);
+ return res;
+ }
+ usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3),
+ dev->intr_buff, INTBUFSIZE, intr_callback,
+ dev, dev->intr_interval);
+ if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(dev->netdev);
+ dev_warn(&netdev->dev, "intr_urb submit failed: %d\n", res);
+ usb_kill_urb(dev->rx_urb);
+ return res;
+ }
+ enable_net_traffic(dev);
+ set_carrier(netdev);
+ netif_start_queue(netdev);
+
+ return res;
+}
+
+static int rtl8150_close(struct net_device *netdev)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+
+ netif_stop_queue(netdev);
+ if (!test_bit(RTL8150_UNPLUG, &dev->flags))
+ disable_net_traffic(dev);
+ unlink_all_urbs(dev);
+
+ return 0;
+}
+
+static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+
+ strlcpy(info->driver, driver_name, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
+}
+
+static int rtl8150_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ short lpa, bmcr;
+
+ ecmd->supported = (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP | SUPPORTED_MII);
+ ecmd->port = PORT_TP;
+ ecmd->transceiver = XCVR_INTERNAL;
+ ecmd->phy_address = dev->phy;
+ get_registers(dev, BMCR, 2, &bmcr);
+ get_registers(dev, ANLP, 2, &lpa);
+ if (bmcr & BMCR_ANENABLE) {
+ u32 speed = ((lpa & (LPA_100HALF | LPA_100FULL)) ?
+ SPEED_100 : SPEED_10);
+ ethtool_cmd_speed_set(ecmd, speed);
+ ecmd->autoneg = AUTONEG_ENABLE;
+ if (speed == SPEED_100)
+ ecmd->duplex = (lpa & LPA_100FULL) ?
+ DUPLEX_FULL : DUPLEX_HALF;
+ else
+ ecmd->duplex = (lpa & LPA_10FULL) ?
+ DUPLEX_FULL : DUPLEX_HALF;
+ } else {
+ ecmd->autoneg = AUTONEG_DISABLE;
+ ethtool_cmd_speed_set(ecmd, ((bmcr & BMCR_SPEED100) ?
+ SPEED_100 : SPEED_10));
+ ecmd->duplex = (bmcr & BMCR_FULLDPLX) ?
+ DUPLEX_FULL : DUPLEX_HALF;
+ }
+ return 0;
+}
+
+static const struct ethtool_ops ops = {
+ .get_drvinfo = rtl8150_get_drvinfo,
+ .get_settings = rtl8150_get_settings,
+ .get_link = ethtool_op_get_link
+};
+
+static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ rtl8150_t *dev = netdev_priv(netdev);
+ u16 *data = (u16 *) & rq->ifr_ifru;
+ int res = 0;
+
+ switch (cmd) {
+ case SIOCDEVPRIVATE:
+ data[0] = dev->phy;
+ case SIOCDEVPRIVATE + 1:
+ read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]);
+ break;
+ case SIOCDEVPRIVATE + 2:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]);
+ break;
+ default:
+ res = -EOPNOTSUPP;
+ }
+
+ return res;
+}
+
+static const struct net_device_ops rtl8150_netdev_ops = {
+ .ndo_open = rtl8150_open,
+ .ndo_stop = rtl8150_close,
+ .ndo_do_ioctl = rtl8150_ioctl,
+ .ndo_start_xmit = rtl8150_start_xmit,
+ .ndo_tx_timeout = rtl8150_tx_timeout,
+ .ndo_set_rx_mode = rtl8150_set_multicast,
+ .ndo_set_mac_address = rtl8150_set_mac_address,
+
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int rtl8150_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ rtl8150_t *dev;
+ struct net_device *netdev;
+
+ netdev = alloc_etherdev(sizeof(rtl8150_t));
+ if (!netdev)
+ return -ENOMEM;
+
+ dev = netdev_priv(netdev);
+
+ dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
+ if (!dev->intr_buff) {
+ free_netdev(netdev);
+ return -ENOMEM;
+ }
+
+ tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev);
+ spin_lock_init(&dev->rx_pool_lock);
+
+ dev->udev = udev;
+ dev->netdev = netdev;
+ netdev->netdev_ops = &rtl8150_netdev_ops;
+ netdev->watchdog_timeo = RTL8150_TX_TIMEOUT;
+ netdev->ethtool_ops = &ops;
+ dev->intr_interval = 100; /* 100ms */
+
+ if (!alloc_all_urbs(dev)) {
+ dev_err(&intf->dev, "out of memory\n");
+ goto out;
+ }
+ if (!rtl8150_reset(dev)) {
+ dev_err(&intf->dev, "couldn't reset the device\n");
+ goto out1;
+ }
+ fill_skb_pool(dev);
+ set_ethernet_addr(dev);
+
+ usb_set_intfdata(intf, dev);
+ SET_NETDEV_DEV(netdev, &intf->dev);
+ if (register_netdev(netdev) != 0) {
+ dev_err(&intf->dev, "couldn't register the device\n");
+ goto out2;
+ }
+
+ dev_info(&intf->dev, "%s: rtl8150 is detected\n", netdev->name);
+
+ return 0;
+
+out2:
+ usb_set_intfdata(intf, NULL);
+ free_skb_pool(dev);
+out1:
+ free_all_urbs(dev);
+out:
+ kfree(dev->intr_buff);
+ free_netdev(netdev);
+ return -EIO;
+}
+
+static void rtl8150_disconnect(struct usb_interface *intf)
+{
+ rtl8150_t *dev = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (dev) {
+ set_bit(RTL8150_UNPLUG, &dev->flags);
+ tasklet_kill(&dev->tl);
+ unregister_netdev(dev->netdev);
+ unlink_all_urbs(dev);
+ free_all_urbs(dev);
+ free_skb_pool(dev);
+ if (dev->rx_skb)
+ dev_kfree_skb(dev->rx_skb);
+ kfree(dev->intr_buff);
+ free_netdev(dev->netdev);
+ }
+}
+
+static struct usb_driver rtl8150_driver = {
+ .name = driver_name,
+ .probe = rtl8150_probe,
+ .disconnect = rtl8150_disconnect,
+ .id_table = rtl8150_table,
+ .suspend = rtl8150_suspend,
+ .resume = rtl8150_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(rtl8150_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
new file mode 100644
index 0000000..0b5a84c
--- /dev/null
+++ b/drivers/net/usb/sierra_net.c
@@ -0,0 +1,1000 @@
+/*
+ * USB-to-WWAN Driver for Sierra Wireless modems
+ *
+ * Copyright (C) 2008, 2009, 2010 Paxton Smith, Matthew Safar, Rory Filer
+ * <linux@sierrawireless.com>
+ *
+ * Portions of this based on the cdc_ether driver by David Brownell (2003-2005)
+ * and Ole Andre Vadla Ravnas (ActiveSync) (2006).
+ *
+ * IMPORTANT DISCLAIMER: This driver is not commercially supported by
+ * Sierra Wireless. Use at your own risk.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DRIVER_VERSION "v.2.0"
+#define DRIVER_AUTHOR "Paxton Smith, Matthew Safar, Rory Filer"
+#define DRIVER_DESC "USB-to-WWAN Driver for Sierra Wireless modems"
+static const char driver_name[] = "sierra_net";
+
+/* if defined debug messages enabled */
+/*#define DEBUG*/
+
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <net/ip.h>
+#include <net/udp.h>
+#include <asm/unaligned.h>
+#include <linux/usb/usbnet.h>
+
+#define SWI_USB_REQUEST_GET_FW_ATTR 0x06
+#define SWI_GET_FW_ATTR_MASK 0x08
+
+/* atomic counter partially included in MAC address to make sure 2 devices
+ * do not end up with the same MAC - concept breaks in case of > 255 ifaces
+ */
+static atomic_t iface_counter = ATOMIC_INIT(0);
+
+/*
+ * SYNC Timer Delay definition used to set the expiry time
+ */
+#define SIERRA_NET_SYNCDELAY (2*HZ)
+
+/* Max. MTU supported. The modem buffers are limited to 1500 */
+#define SIERRA_NET_MAX_SUPPORTED_MTU 1500
+
+/* The SIERRA_NET_USBCTL_BUF_LEN defines a buffer size allocated for control
+ * message reception ... and thus the max. received packet.
+ * (May be the cause for parse_hip returning -EINVAL)
+ */
+#define SIERRA_NET_USBCTL_BUF_LEN 1024
+
+/* Overriding the default usbnet rx_urb_size */
+#define SIERRA_NET_RX_URB_SIZE (8 * 1024)
+
+/* Private data structure */
+struct sierra_net_data {
+
+ u16 link_up; /* air link up or down */
+ u8 tx_hdr_template[4]; /* part of HIP hdr for tx'd packets */
+
+ u8 sync_msg[4]; /* SYNC message */
+ u8 shdwn_msg[4]; /* Shutdown message */
+
+ /* Backpointer to the container */
+ struct usbnet *usbnet;
+
+ u8 ifnum; /* interface number */
+
+/* Bit masks, must be a power of 2 */
+#define SIERRA_NET_EVENT_RESP_AVAIL 0x01
+#define SIERRA_NET_TIMER_EXPIRY 0x02
+ unsigned long kevent_flags;
+ struct work_struct sierra_net_kevent;
+ struct timer_list sync_timer; /* For retrying SYNC sequence */
+};
+
+struct param {
+ int is_present;
+ union {
+ void *ptr;
+ u32 dword;
+ u16 word;
+ u8 byte;
+ };
+};
+
+/* HIP message type */
+#define SIERRA_NET_HIP_EXTENDEDID 0x7F
+#define SIERRA_NET_HIP_HSYNC_ID 0x60 /* Modem -> host */
+#define SIERRA_NET_HIP_RESTART_ID 0x62 /* Modem -> host */
+#define SIERRA_NET_HIP_MSYNC_ID 0x20 /* Host -> modem */
+#define SIERRA_NET_HIP_SHUTD_ID 0x26 /* Host -> modem */
+
+#define SIERRA_NET_HIP_EXT_IP_IN_ID 0x0202
+#define SIERRA_NET_HIP_EXT_IP_OUT_ID 0x0002
+
+/* 3G UMTS Link Sense Indication definitions */
+#define SIERRA_NET_HIP_LSI_UMTSID 0x78
+
+/* Reverse Channel Grant Indication HIP message */
+#define SIERRA_NET_HIP_RCGI 0x64
+
+/* LSI Protocol types */
+#define SIERRA_NET_PROTOCOL_UMTS 0x01
+#define SIERRA_NET_PROTOCOL_UMTS_DS 0x04
+/* LSI Coverage */
+#define SIERRA_NET_COVERAGE_NONE 0x00
+#define SIERRA_NET_COVERAGE_NOPACKET 0x01
+
+/* LSI Session */
+#define SIERRA_NET_SESSION_IDLE 0x00
+/* LSI Link types */
+#define SIERRA_NET_AS_LINK_TYPE_IPV4 0x00
+#define SIERRA_NET_AS_LINK_TYPE_IPV6 0x02
+
+struct lsi_umts {
+ u8 protocol;
+ u8 unused1;
+ __be16 length;
+ /* eventually use a union for the rest - assume umts for now */
+ u8 coverage;
+ u8 network_len; /* network name len */
+ u8 network[40]; /* network name (UCS2, bigendian) */
+ u8 session_state;
+ u8 unused3[33];
+} __packed;
+
+struct lsi_umts_single {
+ struct lsi_umts lsi;
+ u8 link_type;
+ u8 pdp_addr_len; /* NW-supplied PDP address len */
+ u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
+ u8 unused4[23];
+ u8 dns1_addr_len; /* NW-supplied 1st DNS address len (bigendian) */
+ u8 dns1_addr[16]; /* NW-supplied 1st DNS address */
+ u8 dns2_addr_len; /* NW-supplied 2nd DNS address len */
+ u8 dns2_addr[16]; /* NW-supplied 2nd DNS address (bigendian)*/
+ u8 wins1_addr_len; /* NW-supplied 1st Wins address len */
+ u8 wins1_addr[16]; /* NW-supplied 1st Wins address (bigendian)*/
+ u8 wins2_addr_len; /* NW-supplied 2nd Wins address len */
+ u8 wins2_addr[16]; /* NW-supplied 2nd Wins address (bigendian) */
+ u8 unused5[4];
+ u8 gw_addr_len; /* NW-supplied GW address len */
+ u8 gw_addr[16]; /* NW-supplied GW address (bigendian) */
+ u8 reserved[8];
+} __packed;
+
+struct lsi_umts_dual {
+ struct lsi_umts lsi;
+ u8 pdp_addr4_len; /* NW-supplied PDP IPv4 address len */
+ u8 pdp_addr4[4]; /* NW-supplied PDP IPv4 address (bigendian)) */
+ u8 pdp_addr6_len; /* NW-supplied PDP IPv6 address len */
+ u8 pdp_addr6[16]; /* NW-supplied PDP IPv6 address (bigendian)) */
+ u8 unused4[23];
+ u8 dns1_addr4_len; /* NW-supplied 1st DNS v4 address len (bigendian) */
+ u8 dns1_addr4[4]; /* NW-supplied 1st DNS v4 address */
+ u8 dns1_addr6_len; /* NW-supplied 1st DNS v6 address len */
+ u8 dns1_addr6[16]; /* NW-supplied 1st DNS v6 address (bigendian)*/
+ u8 dns2_addr4_len; /* NW-supplied 2nd DNS v4 address len (bigendian) */
+ u8 dns2_addr4[4]; /* NW-supplied 2nd DNS v4 address */
+ u8 dns2_addr6_len; /* NW-supplied 2nd DNS v6 address len */
+ u8 dns2_addr6[16]; /* NW-supplied 2nd DNS v6 address (bigendian)*/
+ u8 unused5[68];
+} __packed;
+
+#define SIERRA_NET_LSI_COMMON_LEN 4
+#define SIERRA_NET_LSI_UMTS_LEN (sizeof(struct lsi_umts_single))
+#define SIERRA_NET_LSI_UMTS_STATUS_LEN \
+ (SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+#define SIERRA_NET_LSI_UMTS_DS_LEN (sizeof(struct lsi_umts_dual))
+#define SIERRA_NET_LSI_UMTS_DS_STATUS_LEN \
+ (SIERRA_NET_LSI_UMTS_DS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+
+/* Forward definitions */
+static void sierra_sync_timer(unsigned long syncdata);
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu);
+
+/* Our own net device operations structure */
+static const struct net_device_ops sierra_net_device_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = sierra_net_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/* get private data associated with passed in usbnet device */
+static inline struct sierra_net_data *sierra_net_get_private(struct usbnet *dev)
+{
+ return (struct sierra_net_data *)dev->data[0];
+}
+
+/* set private data associated with passed in usbnet device */
+static inline void sierra_net_set_private(struct usbnet *dev,
+ struct sierra_net_data *priv)
+{
+ dev->data[0] = (unsigned long)priv;
+}
+
+/* is packet IPv4/IPv6 */
+static inline int is_ip(struct sk_buff *skb)
+{
+ return skb->protocol == cpu_to_be16(ETH_P_IP) ||
+ skb->protocol == cpu_to_be16(ETH_P_IPV6);
+}
+
+/*
+ * check passed in packet and make sure that:
+ * - it is linear (no scatter/gather)
+ * - it is ethernet (mac_header properly set)
+ */
+static int check_ethip_packet(struct sk_buff *skb, struct usbnet *dev)
+{
+ skb_reset_mac_header(skb); /* ethernet header */
+
+ if (skb_is_nonlinear(skb)) {
+ netdev_err(dev->net, "Non linear buffer-dropping\n");
+ return 0;
+ }
+
+ if (!pskb_may_pull(skb, ETH_HLEN))
+ return 0;
+ skb->protocol = eth_hdr(skb)->h_proto;
+
+ return 1;
+}
+
+static const u8 *save16bit(struct param *p, const u8 *datap)
+{
+ p->is_present = 1;
+ p->word = get_unaligned_be16(datap);
+ return datap + sizeof(p->word);
+}
+
+static const u8 *save8bit(struct param *p, const u8 *datap)
+{
+ p->is_present = 1;
+ p->byte = *datap;
+ return datap + sizeof(p->byte);
+}
+
+/*----------------------------------------------------------------------------*
+ * BEGIN HIP *
+ *----------------------------------------------------------------------------*/
+/* HIP header */
+#define SIERRA_NET_HIP_HDR_LEN 4
+/* Extended HIP header */
+#define SIERRA_NET_HIP_EXT_HDR_LEN 6
+
+struct hip_hdr {
+ int hdrlen;
+ struct param payload_len;
+ struct param msgid;
+ struct param msgspecific;
+ struct param extmsgid;
+};
+
+static int parse_hip(const u8 *buf, const u32 buflen, struct hip_hdr *hh)
+{
+ const u8 *curp = buf;
+ int padded;
+
+ if (buflen < SIERRA_NET_HIP_HDR_LEN)
+ return -EPROTO;
+
+ curp = save16bit(&hh->payload_len, curp);
+ curp = save8bit(&hh->msgid, curp);
+ curp = save8bit(&hh->msgspecific, curp);
+
+ padded = hh->msgid.byte & 0x80;
+ hh->msgid.byte &= 0x7F; /* 7 bits */
+
+ hh->extmsgid.is_present = (hh->msgid.byte == SIERRA_NET_HIP_EXTENDEDID);
+ if (hh->extmsgid.is_present) {
+ if (buflen < SIERRA_NET_HIP_EXT_HDR_LEN)
+ return -EPROTO;
+
+ hh->payload_len.word &= 0x3FFF; /* 14 bits */
+
+ curp = save16bit(&hh->extmsgid, curp);
+ hh->extmsgid.word &= 0x03FF; /* 10 bits */
+
+ hh->hdrlen = SIERRA_NET_HIP_EXT_HDR_LEN;
+ } else {
+ hh->payload_len.word &= 0x07FF; /* 11 bits */
+ hh->hdrlen = SIERRA_NET_HIP_HDR_LEN;
+ }
+
+ if (padded) {
+ hh->hdrlen++;
+ hh->payload_len.word--;
+ }
+
+ /* if real packet shorter than the claimed length */
+ if (buflen < (hh->hdrlen + hh->payload_len.word))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void build_hip(u8 *buf, const u16 payloadlen,
+ struct sierra_net_data *priv)
+{
+ /* the following doesn't have the full functionality. We
+ * currently build only one kind of header, so it is faster this way
+ */
+ put_unaligned_be16(payloadlen, buf);
+ memcpy(buf+2, priv->tx_hdr_template, sizeof(priv->tx_hdr_template));
+}
+/*----------------------------------------------------------------------------*
+ * END HIP *
+ *----------------------------------------------------------------------------*/
+
+static int sierra_net_send_cmd(struct usbnet *dev,
+ u8 *cmd, int cmdlen, const char * cmd_name)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ int status;
+
+ status = usbnet_write_cmd(dev, USB_CDC_SEND_ENCAPSULATED_COMMAND,
+ USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
+ 0, priv->ifnum, cmd, cmdlen);
+
+ if (status != cmdlen && status != -ENODEV)
+ netdev_err(dev->net, "Submit %s failed %d\n", cmd_name, status);
+
+ return status;
+}
+
+static int sierra_net_send_sync(struct usbnet *dev)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ status = sierra_net_send_cmd(dev, priv->sync_msg,
+ sizeof(priv->sync_msg), "SYNC");
+
+ return status;
+}
+
+static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
+{
+ dev_dbg(&(priv->usbnet->udev->dev), "%s %d", __func__, ctx_ix);
+ priv->tx_hdr_template[0] = 0x3F;
+ priv->tx_hdr_template[1] = ctx_ix;
+ *((__be16 *)&priv->tx_hdr_template[2]) =
+ cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
+}
+
+static inline int sierra_net_is_valid_addrlen(u8 len)
+{
+ return len == sizeof(struct in_addr);
+}
+
+static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
+{
+ struct lsi_umts *lsi = (struct lsi_umts *)data;
+ u32 expected_length;
+
+ if (datalen < sizeof(struct lsi_umts_single)) {
+ netdev_err(dev->net, "%s: Data length %d, exp >= %Zu\n",
+ __func__, datalen, sizeof(struct lsi_umts_single));
+ return -1;
+ }
+
+ /* Validate the session state */
+ if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+ netdev_err(dev->net, "Session idle, 0x%02x\n",
+ lsi->session_state);
+ return 0;
+ }
+
+ /* Validate the protocol - only support UMTS for now */
+ if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS) {
+ struct lsi_umts_single *single = (struct lsi_umts_single *)lsi;
+
+ /* Validate the link type */
+ if (single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV4 &&
+ single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV6) {
+ netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
+ single->link_type);
+ return -1;
+ }
+ expected_length = SIERRA_NET_LSI_UMTS_STATUS_LEN;
+ } else if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS_DS) {
+ expected_length = SIERRA_NET_LSI_UMTS_DS_STATUS_LEN;
+ } else {
+ netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
+ lsi->protocol);
+ return -1;
+ }
+
+ if (be16_to_cpu(lsi->length) != expected_length) {
+ netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
+ __func__, be16_to_cpu(lsi->length), expected_length);
+ return -1;
+ }
+
+ /* Validate the coverage */
+ if (lsi->coverage == SIERRA_NET_COVERAGE_NONE ||
+ lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
+ netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
+ return 0;
+ }
+
+ /* Set link_sense true */
+ return 1;
+}
+
+static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
+ struct hip_hdr *hh)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ int link_up;
+
+ link_up = sierra_net_parse_lsi(dev, data + hh->hdrlen,
+ hh->payload_len.word);
+ if (link_up < 0) {
+ netdev_err(dev->net, "Invalid LSI\n");
+ return;
+ }
+ if (link_up) {
+ sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
+ priv->link_up = 1;
+ } else {
+ priv->link_up = 0;
+ }
+ usbnet_link_change(dev, link_up, 0);
+}
+
+static void sierra_net_dosync(struct usbnet *dev)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* The SIERRA_NET_HIP_MSYNC_ID command appears to request that the
+ * firmware restart itself. After restarting, the modem will respond
+ * with the SIERRA_NET_HIP_RESTART_ID indication. The driver continues
+ * sending MSYNC commands every few seconds until it receives the
+ * RESTART event from the firmware
+ */
+
+ /* tell modem we are ready */
+ status = sierra_net_send_sync(dev);
+ if (status < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed, status %d\n", status);
+ status = sierra_net_send_sync(dev);
+ if (status < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed, status %d\n", status);
+
+ /* Now, start a timer and make sure we get the Restart Indication */
+ priv->sync_timer.function = sierra_sync_timer;
+ priv->sync_timer.data = (unsigned long) dev;
+ priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
+ add_timer(&priv->sync_timer);
+}
+
+static void sierra_net_kevent(struct work_struct *work)
+{
+ struct sierra_net_data *priv =
+ container_of(work, struct sierra_net_data, sierra_net_kevent);
+ struct usbnet *dev = priv->usbnet;
+ int len;
+ int err;
+ u8 *buf;
+ u8 ifnum;
+
+ if (test_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags)) {
+ clear_bit(SIERRA_NET_EVENT_RESP_AVAIL, &priv->kevent_flags);
+
+ /* Query the modem for the LSI message */
+ buf = kzalloc(SIERRA_NET_USBCTL_BUF_LEN, GFP_KERNEL);
+ if (!buf)
+ return;
+
+ ifnum = priv->ifnum;
+ len = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ USB_CDC_GET_ENCAPSULATED_RESPONSE,
+ USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE,
+ 0, ifnum, buf, SIERRA_NET_USBCTL_BUF_LEN,
+ USB_CTRL_SET_TIMEOUT);
+
+ if (len < 0) {
+ netdev_err(dev->net,
+ "usb_control_msg failed, status %d\n", len);
+ } else {
+ struct hip_hdr hh;
+
+ dev_dbg(&dev->udev->dev, "%s: Received status message,"
+ " %04x bytes", __func__, len);
+
+ err = parse_hip(buf, len, &hh);
+ if (err) {
+ netdev_err(dev->net, "%s: Bad packet,"
+ " parse result %d\n", __func__, err);
+ kfree(buf);
+ return;
+ }
+
+ /* Validate packet length */
+ if (len != hh.hdrlen + hh.payload_len.word) {
+ netdev_err(dev->net, "%s: Bad packet, received"
+ " %d, expected %d\n", __func__, len,
+ hh.hdrlen + hh.payload_len.word);
+ kfree(buf);
+ return;
+ }
+
+ /* Switch on received message types */
+ switch (hh.msgid.byte) {
+ case SIERRA_NET_HIP_LSI_UMTSID:
+ dev_dbg(&dev->udev->dev, "LSI for ctx:%d",
+ hh.msgspecific.byte);
+ sierra_net_handle_lsi(dev, buf, &hh);
+ break;
+ case SIERRA_NET_HIP_RESTART_ID:
+ dev_dbg(&dev->udev->dev, "Restart reported: %d,"
+ " stopping sync timer",
+ hh.msgspecific.byte);
+ /* Got sync resp - stop timer & clear mask */
+ del_timer_sync(&priv->sync_timer);
+ clear_bit(SIERRA_NET_TIMER_EXPIRY,
+ &priv->kevent_flags);
+ break;
+ case SIERRA_NET_HIP_HSYNC_ID:
+ dev_dbg(&dev->udev->dev, "SYNC received");
+ err = sierra_net_send_sync(dev);
+ if (err < 0)
+ netdev_err(dev->net,
+ "Send SYNC failed %d\n", err);
+ break;
+ case SIERRA_NET_HIP_EXTENDEDID:
+ netdev_err(dev->net, "Unrecognized HIP msg, "
+ "extmsgid 0x%04x\n", hh.extmsgid.word);
+ break;
+ case SIERRA_NET_HIP_RCGI:
+ /* Ignored */
+ break;
+ default:
+ netdev_err(dev->net, "Unrecognized HIP msg, "
+ "msgid 0x%02x\n", hh.msgid.byte);
+ break;
+ }
+ }
+ kfree(buf);
+ }
+ /* The sync timer bit might be set */
+ if (test_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags)) {
+ clear_bit(SIERRA_NET_TIMER_EXPIRY, &priv->kevent_flags);
+ dev_dbg(&dev->udev->dev, "Deferred sync timer expiry");
+ sierra_net_dosync(priv->usbnet);
+ }
+
+ if (priv->kevent_flags)
+ dev_dbg(&dev->udev->dev, "sierra_net_kevent done, "
+ "kevent_flags = 0x%lx", priv->kevent_flags);
+}
+
+static void sierra_net_defer_kevent(struct usbnet *dev, int work)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ set_bit(work, &priv->kevent_flags);
+ schedule_work(&priv->sierra_net_kevent);
+}
+
+/*
+ * Sync Retransmit Timer Handler. On expiry, kick the work queue
+ */
+static void sierra_sync_timer(unsigned long syncdata)
+{
+ struct usbnet *dev = (struct usbnet *)syncdata;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+ /* Kick the tasklet */
+ sierra_net_defer_kevent(dev, SIERRA_NET_TIMER_EXPIRY);
+}
+
+static void sierra_net_status(struct usbnet *dev, struct urb *urb)
+{
+ struct usb_cdc_notification *event;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ if (urb->actual_length < sizeof *event)
+ return;
+
+ /* Add cases to handle other standard notifications. */
+ event = urb->transfer_buffer;
+ switch (event->bNotificationType) {
+ case USB_CDC_NOTIFY_NETWORK_CONNECTION:
+ case USB_CDC_NOTIFY_SPEED_CHANGE:
+ /* USB 305 sends those */
+ break;
+ case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
+ sierra_net_defer_kevent(dev, SIERRA_NET_EVENT_RESP_AVAIL);
+ break;
+ default:
+ netdev_err(dev->net, ": unexpected notification %02x!\n",
+ event->bNotificationType);
+ break;
+ }
+}
+
+static void sierra_net_get_drvinfo(struct net_device *net,
+ struct ethtool_drvinfo *info)
+{
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ strlcpy(info->driver, driver_name, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+}
+
+static u32 sierra_net_get_link(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ /* Report link is down whenever the interface is down */
+ return sierra_net_get_private(dev)->link_up && netif_running(net);
+}
+
+static const struct ethtool_ops sierra_net_ethtool_ops = {
+ .get_drvinfo = sierra_net_get_drvinfo,
+ .get_link = sierra_net_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+/* MTU can not be more than 1500 bytes, enforce it. */
+static int sierra_net_change_mtu(struct net_device *net, int new_mtu)
+{
+ if (new_mtu > SIERRA_NET_MAX_SUPPORTED_MTU)
+ return -EINVAL;
+
+ return usbnet_change_mtu(net, new_mtu);
+}
+
+static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
+{
+ int result = 0;
+ __le16 attrdata;
+
+ result = usbnet_read_cmd(dev,
+ /* _u8 vendor specific request */
+ SWI_USB_REQUEST_GET_FW_ATTR,
+ USB_DIR_IN | USB_TYPE_VENDOR, /* __u8 request type */
+ 0x0000, /* __u16 value not used */
+ 0x0000, /* __u16 index not used */
+ &attrdata, /* char *data */
+ sizeof(attrdata) /* __u16 size */
+ );
+
+ if (result < 0)
+ return -EIO;
+
+ *datap = le16_to_cpu(attrdata);
+ return result;
+}
+
+/*
+ * collects the bulk endpoints, the status endpoint.
+ */
+static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u8 ifacenum;
+ u8 numendpoints;
+ u16 fwattr = 0;
+ int status;
+ struct sierra_net_data *priv;
+ static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
+ 0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
+ static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
+ 0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
+ numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
+ /* We have three endpoints, bulk in and out, and a status */
+ if (numendpoints != 3) {
+ dev_err(&dev->udev->dev, "Expected 3 endpoints, found: %d",
+ numendpoints);
+ return -ENODEV;
+ }
+ /* Status endpoint set in usbnet_get_endpoints() */
+ dev->status = NULL;
+ status = usbnet_get_endpoints(dev, intf);
+ if (status < 0) {
+ dev_err(&dev->udev->dev, "Error in usbnet_get_endpoints (%d)",
+ status);
+ return -ENODEV;
+ }
+ /* Initialize sierra private data */
+ priv = kzalloc(sizeof *priv, GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->usbnet = dev;
+ priv->ifnum = ifacenum;
+ dev->net->netdev_ops = &sierra_net_device_ops;
+
+ /* change MAC addr to include, ifacenum, and to be unique */
+ dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
+ dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
+
+ /* prepare shutdown message template */
+ memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
+ /* set context index initially to 0 - prepares tx hdr template */
+ sierra_net_set_ctx_index(priv, 0);
+
+ /* prepare sync message template */
+ memcpy(priv->sync_msg, sync_tmplate, sizeof(priv->sync_msg));
+
+ /* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
+ dev->rx_urb_size = SIERRA_NET_RX_URB_SIZE;
+ if (dev->udev->speed != USB_SPEED_HIGH)
+ dev->rx_urb_size = min_t(size_t, 4096, SIERRA_NET_RX_URB_SIZE);
+
+ dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
+ /* Set up the netdev */
+ dev->net->flags |= IFF_NOARP;
+ dev->net->ethtool_ops = &sierra_net_ethtool_ops;
+ netif_carrier_off(dev->net);
+
+ sierra_net_set_private(dev, priv);
+
+ priv->kevent_flags = 0;
+
+ /* Use the shared workqueue */
+ INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
+
+ /* Only need to do this once */
+ init_timer(&priv->sync_timer);
+
+ /* verify fw attributes */
+ status = sierra_net_get_fw_attr(dev, &fwattr);
+ dev_dbg(&dev->udev->dev, "Fw attr: %x\n", fwattr);
+
+ /* test whether firmware supports DHCP */
+ if (!(status == sizeof(fwattr) && (fwattr & SWI_GET_FW_ATTR_MASK))) {
+ /* found incompatible firmware version */
+ dev_err(&dev->udev->dev, "Incompatible driver and firmware"
+ " versions\n");
+ kfree(priv);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void sierra_net_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ int status;
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* kill the timer and work */
+ del_timer_sync(&priv->sync_timer);
+ cancel_work_sync(&priv->sierra_net_kevent);
+
+ /* tell modem we are going away */
+ status = sierra_net_send_cmd(dev, priv->shdwn_msg,
+ sizeof(priv->shdwn_msg), "Shutdown");
+ if (status < 0)
+ netdev_err(dev->net,
+ "usb_control_msg failed, status %d\n", status);
+
+ usbnet_status_stop(dev);
+
+ sierra_net_set_private(dev, NULL);
+ kfree(priv);
+}
+
+static struct sk_buff *sierra_net_skb_clone(struct usbnet *dev,
+ struct sk_buff *skb, int len)
+{
+ struct sk_buff *new_skb;
+
+ /* clone skb */
+ new_skb = skb_clone(skb, GFP_ATOMIC);
+
+ /* remove len bytes from original */
+ skb_pull(skb, len);
+
+ /* trim next packet to it's length */
+ if (new_skb) {
+ skb_trim(new_skb, len);
+ } else {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "failed to get skb\n");
+ dev->net->stats.rx_dropped++;
+ }
+
+ return new_skb;
+}
+
+/* ---------------------------- Receive data path ----------------------*/
+static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int err;
+ struct hip_hdr hh;
+ struct sk_buff *new_skb;
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+
+ /* could contain multiple packets */
+ while (likely(skb->len)) {
+ err = parse_hip(skb->data, skb->len, &hh);
+ if (err) {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "Invalid HIP header %d\n",
+ err);
+ /* dev->net->stats.rx_errors incremented by caller */
+ dev->net->stats.rx_length_errors++;
+ return 0;
+ }
+
+ /* Validate Extended HIP header */
+ if (!hh.extmsgid.is_present
+ || hh.extmsgid.word != SIERRA_NET_HIP_EXT_IP_IN_ID) {
+ if (netif_msg_rx_err(dev))
+ netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
+
+ dev->net->stats.rx_frame_errors++;
+ /* dev->net->stats.rx_errors incremented by caller */
+ return 0;
+ }
+
+ skb_pull(skb, hh.hdrlen);
+
+ /* We are going to accept this packet, prepare it.
+ * In case protocol is IPv6, keep it, otherwise force IPv4.
+ */
+ skb_reset_mac_header(skb);
+ if (eth_hdr(skb)->h_proto != cpu_to_be16(ETH_P_IPV6))
+ eth_hdr(skb)->h_proto = cpu_to_be16(ETH_P_IP);
+ eth_zero_addr(eth_hdr(skb)->h_source);
+ memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
+
+ /* Last packet in batch handled by usbnet */
+ if (hh.payload_len.word == skb->len)
+ return 1;
+
+ new_skb = sierra_net_skb_clone(dev, skb, hh.payload_len.word);
+ if (new_skb)
+ usbnet_skb_return(dev, new_skb);
+
+ } /* while */
+
+ return 0;
+}
+
+/* ---------------------------- Transmit data path ----------------------*/
+static struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ struct sierra_net_data *priv = sierra_net_get_private(dev);
+ u16 len;
+ bool need_tail;
+
+ BUILD_BUG_ON(FIELD_SIZEOF(struct usbnet, data)
+ < sizeof(struct cdc_state));
+
+ dev_dbg(&dev->udev->dev, "%s", __func__);
+ if (priv->link_up && check_ethip_packet(skb, dev) && is_ip(skb)) {
+ /* enough head room as is? */
+ if (SIERRA_NET_HIP_EXT_HDR_LEN <= skb_headroom(skb)) {
+ /* Save the Eth/IP length and set up HIP hdr */
+ len = skb->len;
+ skb_push(skb, SIERRA_NET_HIP_EXT_HDR_LEN);
+ /* Handle ZLP issue */
+ need_tail = ((len + SIERRA_NET_HIP_EXT_HDR_LEN)
+ % dev->maxpacket == 0);
+ if (need_tail) {
+ if (unlikely(skb_tailroom(skb) == 0)) {
+ netdev_err(dev->net, "tx_fixup:"
+ "no room for packet\n");
+ dev_kfree_skb_any(skb);
+ return NULL;
+ } else {
+ skb->data[skb->len] = 0;
+ __skb_put(skb, 1);
+ len = len + 1;
+ }
+ }
+ build_hip(skb->data, len, priv);
+ return skb;
+ } else {
+ /*
+ * compensate in the future if necessary
+ */
+ netdev_err(dev->net, "tx_fixup: no room for HIP\n");
+ } /* headroom */
+ }
+
+ if (!priv->link_up)
+ dev->net->stats.tx_carrier_errors++;
+
+ /* tx_dropped incremented by usbnet */
+
+ /* filter the packet out, release it */
+ dev_kfree_skb_any(skb);
+ return NULL;
+}
+
+static const struct driver_info sierra_net_info_direct_ip = {
+ .description = "Sierra Wireless USB-to-WWAN Modem",
+ .flags = FLAG_WWAN | FLAG_SEND_ZLP,
+ .bind = sierra_net_bind,
+ .unbind = sierra_net_unbind,
+ .status = sierra_net_status,
+ .rx_fixup = sierra_net_rx_fixup,
+ .tx_fixup = sierra_net_tx_fixup,
+};
+
+static int
+sierra_net_probe(struct usb_interface *udev, const struct usb_device_id *prod)
+{
+ int ret;
+
+ ret = usbnet_probe(udev, prod);
+ if (ret == 0) {
+ struct usbnet *dev = usb_get_intfdata(udev);
+
+ ret = usbnet_status_start(dev, GFP_KERNEL);
+ if (ret == 0) {
+ /* Interrupt URB now set up; initiate sync sequence */
+ sierra_net_dosync(dev);
+ }
+ }
+ return ret;
+}
+
+#define DIRECT_IP_DEVICE(vend, prod) \
+ {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 7), \
+ .driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
+ {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 10), \
+ .driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
+ {USB_DEVICE_INTERFACE_NUMBER(vend, prod, 11), \
+ .driver_info = (unsigned long)&sierra_net_info_direct_ip}
+
+static const struct usb_device_id products[] = {
+ DIRECT_IP_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
+ DIRECT_IP_DEVICE(0x0F3D, 0x68A3), /* AT&T Direct IP modem */
+ DIRECT_IP_DEVICE(0x1199, 0x68AA), /* Sierra Wireless Direct IP LTE modem */
+ DIRECT_IP_DEVICE(0x0F3D, 0x68AA), /* AT&T Direct IP LTE modem */
+
+ {}, /* last item */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+/* We are based on usbnet, so let it handle the USB driver specifics */
+static struct usb_driver sierra_net_driver = {
+ .name = "sierra_net",
+ .id_table = products,
+ .probe = sierra_net_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .no_dynamic_id = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(sierra_net_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
new file mode 100644
index 0000000..30033db
--- /dev/null
+++ b/drivers/net/usb/smsc75xx.c
@@ -0,0 +1,2281 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2010 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/bitrev.h>
+#include <linux/crc16.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+#include "smsc75xx.h"
+
+#define SMSC_CHIPNAME "smsc75xx"
+#define SMSC_DRIVER_VERSION "1.0.0"
+#define HS_USB_PKT_SIZE (512)
+#define FS_USB_PKT_SIZE (64)
+#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
+#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
+#define DEFAULT_BULK_IN_DELAY (0x00002000)
+#define MAX_SINGLE_PACKET_SIZE (9000)
+#define LAN75XX_EEPROM_MAGIC (0x7500)
+#define EEPROM_MAC_OFFSET (0x01)
+#define DEFAULT_TX_CSUM_ENABLE (true)
+#define DEFAULT_RX_CSUM_ENABLE (true)
+#define SMSC75XX_INTERNAL_PHY_ID (1)
+#define SMSC75XX_TX_OVERHEAD (8)
+#define MAX_RX_FIFO_SIZE (20 * 1024)
+#define MAX_TX_FIFO_SIZE (12 * 1024)
+#define USB_VENDOR_ID_SMSC (0x0424)
+#define USB_PRODUCT_ID_LAN7500 (0x7500)
+#define USB_PRODUCT_ID_LAN7505 (0x7505)
+#define RXW_PADDING 2
+#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \
+ WAKE_MCAST | WAKE_ARP | WAKE_MAGIC)
+
+#define SUSPEND_SUSPEND0 (0x01)
+#define SUSPEND_SUSPEND1 (0x02)
+#define SUSPEND_SUSPEND2 (0x04)
+#define SUSPEND_SUSPEND3 (0x08)
+#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
+ SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
+
+struct smsc75xx_priv {
+ struct usbnet *dev;
+ u32 rfe_ctl;
+ u32 wolopts;
+ u32 multicast_hash_table[DP_SEL_VHF_HASH_LEN];
+ struct mutex dataport_mutex;
+ spinlock_t rfe_ctl_lock;
+ struct work_struct set_multicast;
+ u8 suspend_flags;
+};
+
+struct usb_context {
+ struct usb_ctrlrequest req;
+ struct usbnet *dev;
+};
+
+static bool turbo_mode = true;
+module_param(turbo_mode, bool, 0644);
+MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+
+static int __must_check __smsc75xx_read_reg(struct usbnet *dev, u32 index,
+ u32 *data, int in_pm)
+{
+ u32 buf;
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_read_cmd;
+ else
+ fn = usbnet_read_cmd_nopm;
+
+ ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN
+ | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, &buf, 4);
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",
+ index, ret);
+
+ le32_to_cpus(&buf);
+ *data = buf;
+
+ return ret;
+}
+
+static int __must_check __smsc75xx_write_reg(struct usbnet *dev, u32 index,
+ u32 data, int in_pm)
+{
+ u32 buf;
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_write_cmd;
+ else
+ fn = usbnet_write_cmd_nopm;
+
+ buf = data;
+ cpu_to_le32s(&buf);
+
+ ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT
+ | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, &buf, 4);
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static int __must_check smsc75xx_read_reg_nopm(struct usbnet *dev, u32 index,
+ u32 *data)
+{
+ return __smsc75xx_read_reg(dev, index, data, 1);
+}
+
+static int __must_check smsc75xx_write_reg_nopm(struct usbnet *dev, u32 index,
+ u32 data)
+{
+ return __smsc75xx_write_reg(dev, index, data, 1);
+}
+
+static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index,
+ u32 *data)
+{
+ return __smsc75xx_read_reg(dev, index, data, 0);
+}
+
+static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index,
+ u32 data)
+{
+ return __smsc75xx_write_reg(dev, index, data, 0);
+}
+
+/* Loop until the read is completed with timeout
+ * called with phy_mutex held */
+static __must_check int __smsc75xx_phy_wait_not_busy(struct usbnet *dev,
+ int in_pm)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = __smsc75xx_read_reg(dev, MII_ACCESS, &val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_ACCESS\n");
+ return ret;
+ }
+
+ if (!(val & MII_ACCESS_BUSY))
+ return 0;
+ } while (!time_after(jiffies, start_time + HZ));
+
+ return -EIO;
+}
+
+static int __smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx,
+ int in_pm)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = __smsc75xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "MII is busy in smsc75xx_mdio_read\n");
+ goto done;
+ }
+
+ /* set the address, index & direction (read from PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR)
+ | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR)
+ | MII_ACCESS_READ | MII_ACCESS_BUSY;
+ ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_ACCESS\n");
+ goto done;
+ }
+
+ ret = __smsc75xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx);
+ goto done;
+ }
+
+ ret = __smsc75xx_read_reg(dev, MII_DATA, &val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_DATA\n");
+ goto done;
+ }
+
+ ret = (u16)(val & 0xFFFF);
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static void __smsc75xx_mdio_write(struct net_device *netdev, int phy_id,
+ int idx, int regval, int in_pm)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = __smsc75xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "MII is busy in smsc75xx_mdio_write\n");
+ goto done;
+ }
+
+ val = regval;
+ ret = __smsc75xx_write_reg(dev, MII_DATA, val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_DATA\n");
+ goto done;
+ }
+
+ /* set the address, index & direction (write to PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR)
+ | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR)
+ | MII_ACCESS_WRITE | MII_ACCESS_BUSY;
+ ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_ACCESS\n");
+ goto done;
+ }
+
+ ret = __smsc75xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx);
+ goto done;
+ }
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+}
+
+static int smsc75xx_mdio_read_nopm(struct net_device *netdev, int phy_id,
+ int idx)
+{
+ return __smsc75xx_mdio_read(netdev, phy_id, idx, 1);
+}
+
+static void smsc75xx_mdio_write_nopm(struct net_device *netdev, int phy_id,
+ int idx, int regval)
+{
+ __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 1);
+}
+
+static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
+{
+ return __smsc75xx_mdio_read(netdev, phy_id, idx, 0);
+}
+
+static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
+ int regval)
+{
+ __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 0);
+}
+
+static int smsc75xx_wait_eeprom(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = smsc75xx_read_reg(dev, E2P_CMD, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_CMD\n");
+ return ret;
+ }
+
+ if (!(val & E2P_CMD_BUSY) || (val & E2P_CMD_TIMEOUT))
+ break;
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ if (val & (E2P_CMD_TIMEOUT | E2P_CMD_BUSY)) {
+ netdev_warn(dev->net, "EEPROM read operation timeout\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int smsc75xx_eeprom_confirm_not_busy(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = smsc75xx_read_reg(dev, E2P_CMD, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_CMD\n");
+ return ret;
+ }
+
+ if (!(val & E2P_CMD_BUSY))
+ return 0;
+
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ netdev_warn(dev->net, "EEPROM is busy\n");
+ return -EIO;
+}
+
+static int smsc75xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc75xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+ val = E2P_CMD_BUSY | E2P_CMD_READ | (offset & E2P_CMD_ADDR);
+ ret = smsc75xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_CMD\n");
+ return ret;
+ }
+
+ ret = smsc75xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc75xx_read_reg(dev, E2P_DATA, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_DATA\n");
+ return ret;
+ }
+
+ data[i] = val & 0xFF;
+ offset++;
+ }
+
+ return 0;
+}
+
+static int smsc75xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc75xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ /* Issue write/erase enable command */
+ val = E2P_CMD_BUSY | E2P_CMD_EWEN;
+ ret = smsc75xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_CMD\n");
+ return ret;
+ }
+
+ ret = smsc75xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+
+ /* Fill data register */
+ val = data[i];
+ ret = smsc75xx_write_reg(dev, E2P_DATA, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_DATA\n");
+ return ret;
+ }
+
+ /* Send "write" command */
+ val = E2P_CMD_BUSY | E2P_CMD_WRITE | (offset & E2P_CMD_ADDR);
+ ret = smsc75xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_CMD\n");
+ return ret;
+ }
+
+ ret = smsc75xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ offset++;
+ }
+
+ return 0;
+}
+
+static int smsc75xx_dataport_wait_not_busy(struct usbnet *dev)
+{
+ int i, ret;
+
+ for (i = 0; i < 100; i++) {
+ u32 dp_sel;
+ ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading DP_SEL\n");
+ return ret;
+ }
+
+ if (dp_sel & DP_SEL_DPRDY)
+ return 0;
+
+ udelay(40);
+ }
+
+ netdev_warn(dev->net, "smsc75xx_dataport_wait_not_busy timed out\n");
+
+ return -EIO;
+}
+
+static int smsc75xx_dataport_write(struct usbnet *dev, u32 ram_select, u32 addr,
+ u32 length, u32 *buf)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 dp_sel;
+ int i, ret;
+
+ mutex_lock(&pdata->dataport_mutex);
+
+ ret = smsc75xx_dataport_wait_not_busy(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "smsc75xx_dataport_write busy on entry\n");
+ goto done;
+ }
+
+ ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading DP_SEL\n");
+ goto done;
+ }
+
+ dp_sel &= ~DP_SEL_RSEL;
+ dp_sel |= ram_select;
+ ret = smsc75xx_write_reg(dev, DP_SEL, dp_sel);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing DP_SEL\n");
+ goto done;
+ }
+
+ for (i = 0; i < length; i++) {
+ ret = smsc75xx_write_reg(dev, DP_ADDR, addr + i);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing DP_ADDR\n");
+ goto done;
+ }
+
+ ret = smsc75xx_write_reg(dev, DP_DATA, buf[i]);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing DP_DATA\n");
+ goto done;
+ }
+
+ ret = smsc75xx_write_reg(dev, DP_CMD, DP_CMD_WRITE);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing DP_CMD\n");
+ goto done;
+ }
+
+ ret = smsc75xx_dataport_wait_not_busy(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "smsc75xx_dataport_write timeout\n");
+ goto done;
+ }
+ }
+
+done:
+ mutex_unlock(&pdata->dataport_mutex);
+ return ret;
+}
+
+/* returns hash bit number for given MAC address */
+static u32 smsc75xx_hash(char addr[ETH_ALEN])
+{
+ return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff;
+}
+
+static void smsc75xx_deferred_multicast_write(struct work_struct *param)
+{
+ struct smsc75xx_priv *pdata =
+ container_of(param, struct smsc75xx_priv, set_multicast);
+ struct usbnet *dev = pdata->dev;
+ int ret;
+
+ netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n",
+ pdata->rfe_ctl);
+
+ smsc75xx_dataport_write(dev, DP_SEL_VHF, DP_SEL_VHF_VLAN_LEN,
+ DP_SEL_VHF_HASH_LEN, pdata->multicast_hash_table);
+
+ ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+ if (ret < 0)
+ netdev_warn(dev->net, "Error writing RFE_CRL\n");
+}
+
+static void smsc75xx_set_multicast(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
+
+ pdata->rfe_ctl &=
+ ~(RFE_CTL_AU | RFE_CTL_AM | RFE_CTL_DPF | RFE_CTL_MHF);
+ pdata->rfe_ctl |= RFE_CTL_AB;
+
+ for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++)
+ pdata->multicast_hash_table[i] = 0;
+
+ if (dev->net->flags & IFF_PROMISC) {
+ netif_dbg(dev, drv, dev->net, "promiscuous mode enabled\n");
+ pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_AU;
+ } else if (dev->net->flags & IFF_ALLMULTI) {
+ netif_dbg(dev, drv, dev->net, "receive all multicast enabled\n");
+ pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_DPF;
+ } else if (!netdev_mc_empty(dev->net)) {
+ struct netdev_hw_addr *ha;
+
+ netif_dbg(dev, drv, dev->net, "receive multicast hash filter\n");
+
+ pdata->rfe_ctl |= RFE_CTL_MHF | RFE_CTL_DPF;
+
+ netdev_for_each_mc_addr(ha, netdev) {
+ u32 bitnum = smsc75xx_hash(ha->addr);
+ pdata->multicast_hash_table[bitnum / 32] |=
+ (1 << (bitnum % 32));
+ }
+ } else {
+ netif_dbg(dev, drv, dev->net, "receive own packets only\n");
+ pdata->rfe_ctl |= RFE_CTL_DPF;
+ }
+
+ spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
+
+ /* defer register writes to a sleepable context */
+ schedule_work(&pdata->set_multicast);
+}
+
+static int smsc75xx_update_flowcontrol(struct usbnet *dev, u8 duplex,
+ u16 lcladv, u16 rmtadv)
+{
+ u32 flow = 0, fct_flow = 0;
+ int ret;
+
+ if (duplex == DUPLEX_FULL) {
+ u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+
+ if (cap & FLOW_CTRL_TX) {
+ flow = (FLOW_TX_FCEN | 0xFFFF);
+ /* set fct_flow thresholds to 20% and 80% */
+ fct_flow = (8 << 8) | 32;
+ }
+
+ if (cap & FLOW_CTRL_RX)
+ flow |= FLOW_RX_FCEN;
+
+ netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
+ (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
+ (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+ } else {
+ netif_dbg(dev, link, dev->net, "half duplex\n");
+ }
+
+ ret = smsc75xx_write_reg(dev, FLOW, flow);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing FLOW\n");
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, FCT_FLOW, fct_flow);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing FCT_FLOW\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int smsc75xx_link_reset(struct usbnet *dev)
+{
+ struct mii_if_info *mii = &dev->mii;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ u16 lcladv, rmtadv;
+ int ret;
+
+ /* write to clear phy interrupt status */
+ smsc75xx_mdio_write(dev->net, mii->phy_id, PHY_INT_SRC,
+ PHY_INT_SRC_CLEAR_ALL);
+
+ ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing INT_STS\n");
+ return ret;
+ }
+
+ mii_check_media(mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ lcladv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
+ rmtadv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
+
+ netif_dbg(dev, link, dev->net, "speed: %u duplex: %d lcladv: %04x rmtadv: %04x\n",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex, lcladv, rmtadv);
+
+ return smsc75xx_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+}
+
+static void smsc75xx_status(struct usbnet *dev, struct urb *urb)
+{
+ u32 intdata;
+
+ if (urb->actual_length != 4) {
+ netdev_warn(dev->net, "unexpected urb length %d\n",
+ urb->actual_length);
+ return;
+ }
+
+ memcpy(&intdata, urb->transfer_buffer, 4);
+ le32_to_cpus(&intdata);
+
+ netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata);
+
+ if (intdata & INT_ENP_PHY_INT)
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ else
+ netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n",
+ intdata);
+}
+
+static int smsc75xx_ethtool_get_eeprom_len(struct net_device *net)
+{
+ return MAX_EEPROM_SIZE;
+}
+
+static int smsc75xx_ethtool_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ ee->magic = LAN75XX_EEPROM_MAGIC;
+
+ return smsc75xx_read_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (ee->magic != LAN75XX_EEPROM_MAGIC) {
+ netdev_warn(dev->net, "EEPROM: magic value mismatch: 0x%x\n",
+ ee->magic);
+ return -EINVAL;
+ }
+
+ return smsc75xx_write_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static void smsc75xx_ethtool_get_wol(struct net_device *net,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+
+ wolinfo->supported = SUPPORTED_WAKE;
+ wolinfo->wolopts = pdata->wolopts;
+}
+
+static int smsc75xx_ethtool_set_wol(struct net_device *net,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ int ret;
+
+ pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE;
+
+ ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts);
+ if (ret < 0)
+ netdev_warn(dev->net, "device_set_wakeup_enable error %d\n", ret);
+
+ return ret;
+}
+
+static const struct ethtool_ops smsc75xx_ethtool_ops = {
+ .get_link = usbnet_get_link,
+ .nway_reset = usbnet_nway_reset,
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .get_eeprom_len = smsc75xx_ethtool_get_eeprom_len,
+ .get_eeprom = smsc75xx_ethtool_get_eeprom,
+ .set_eeprom = smsc75xx_ethtool_set_eeprom,
+ .get_wol = smsc75xx_ethtool_get_wol,
+ .set_wol = smsc75xx_ethtool_set_wol,
+};
+
+static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EINVAL;
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static void smsc75xx_init_mac_address(struct usbnet *dev)
+{
+ /* try reading mac address from EEPROM */
+ if (smsc75xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+ dev->net->dev_addr) == 0) {
+ if (is_valid_ether_addr(dev->net->dev_addr)) {
+ /* eeprom values are valid so use them */
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from EEPROM\n");
+ return;
+ }
+ }
+
+ /* no eeprom, or eeprom values are invalid. generate random MAC */
+ eth_hw_addr_random(dev->net);
+ netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
+}
+
+static int smsc75xx_set_mac_address(struct usbnet *dev)
+{
+ u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
+ dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
+ u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
+
+ int ret = smsc75xx_write_reg(dev, RX_ADDRH, addr_hi);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write RX_ADDRH: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, RX_ADDRL, addr_lo);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write RX_ADDRL: %d\n", ret);
+ return ret;
+ }
+
+ addr_hi |= ADDR_FILTX_FB_VALID;
+ ret = smsc75xx_write_reg(dev, ADDR_FILTX, addr_hi);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write ADDR_FILTX: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, ADDR_FILTX + 4, addr_lo);
+ if (ret < 0)
+ netdev_warn(dev->net, "Failed to write ADDR_FILTX+4: %d\n", ret);
+
+ return ret;
+}
+
+static int smsc75xx_phy_initialize(struct usbnet *dev)
+{
+ int bmcr, ret, timeout = 0;
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = smsc75xx_mdio_read;
+ dev->mii.mdio_write = smsc75xx_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.supports_gmii = 1;
+ dev->mii.phy_id = SMSC75XX_INTERNAL_PHY_ID;
+
+ /* reset phy and wait for reset to complete */
+ smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+
+ do {
+ msleep(10);
+ bmcr = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR);
+ if (bmcr < 0) {
+ netdev_warn(dev->net, "Error reading MII_BMCR\n");
+ return bmcr;
+ }
+ timeout++;
+ } while ((bmcr & BMCR_RESET) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout on PHY Reset\n");
+ return -EIO;
+ }
+
+ smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_PAUSE_ASYM);
+ smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
+ ADVERTISE_1000FULL);
+
+ /* read and write to clear phy interrupt status */
+ ret = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PHY_INT_SRC\n");
+ return ret;
+ }
+
+ smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_SRC, 0xffff);
+
+ smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
+ PHY_INT_MASK_DEFAULT);
+ mii_nway_restart(&dev->mii);
+
+ netif_dbg(dev, ifup, dev->net, "phy initialised successfully\n");
+ return 0;
+}
+
+static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size)
+{
+ int ret = 0;
+ u32 buf;
+ bool rxenabled;
+
+ ret = smsc75xx_read_reg(dev, MAC_RX, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret);
+ return ret;
+ }
+
+ rxenabled = ((buf & MAC_RX_RXEN) != 0);
+
+ if (rxenabled) {
+ buf &= ~MAC_RX_RXEN;
+ ret = smsc75xx_write_reg(dev, MAC_RX, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret);
+ return ret;
+ }
+ }
+
+ /* add 4 to size for FCS */
+ buf &= ~MAC_RX_MAX_SIZE;
+ buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT) & MAC_RX_MAX_SIZE);
+
+ ret = smsc75xx_write_reg(dev, MAC_RX, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret);
+ return ret;
+ }
+
+ if (rxenabled) {
+ buf |= MAC_RX_RXEN;
+ ret = smsc75xx_write_reg(dev, MAC_RX, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ int ret;
+
+ if (new_mtu > MAX_SINGLE_PACKET_SIZE)
+ return -EINVAL;
+
+ ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to set mac rx frame length\n");
+ return ret;
+ }
+
+ return usbnet_change_mtu(netdev, new_mtu);
+}
+
+/* Enable or disable Rx checksum offload engine */
+static int smsc75xx_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
+
+ if (features & NETIF_F_RXCSUM)
+ pdata->rfe_ctl |= RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM;
+ else
+ pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM);
+
+ spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
+ /* it's racing here! */
+
+ ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+ if (ret < 0)
+ netdev_warn(dev->net, "Error writing RFE_CTL\n");
+
+ return ret;
+}
+
+static int smsc75xx_wait_ready(struct usbnet *dev, int in_pm)
+{
+ int timeout = 0;
+
+ do {
+ u32 buf;
+ int ret;
+
+ ret = __smsc75xx_read_reg(dev, PMT_CTL, &buf, in_pm);
+
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret);
+ return ret;
+ }
+
+ if (buf & PMT_CTL_DEV_RDY)
+ return 0;
+
+ msleep(10);
+ timeout++;
+ } while (timeout < 100);
+
+ netdev_warn(dev->net, "timeout waiting for device ready\n");
+ return -EIO;
+}
+
+static int smsc75xx_reset(struct usbnet *dev)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 buf;
+ int ret = 0, timeout;
+
+ netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset\n");
+
+ ret = smsc75xx_wait_ready(dev, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "device not ready in smsc75xx_reset\n");
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ buf |= HW_CFG_LRST;
+
+ ret = smsc75xx_write_reg(dev, HW_CFG, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ timeout = 0;
+ do {
+ msleep(10);
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+ timeout++;
+ } while ((buf & HW_CFG_LRST) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout on completion of Lite Reset\n");
+ return -EIO;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "Lite reset complete, resetting PHY\n");
+
+ ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret);
+ return ret;
+ }
+
+ buf |= PMT_CTL_PHY_RST;
+
+ ret = smsc75xx_write_reg(dev, PMT_CTL, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write PMT_CTL: %d\n", ret);
+ return ret;
+ }
+
+ timeout = 0;
+ do {
+ msleep(10);
+ ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret);
+ return ret;
+ }
+ timeout++;
+ } while ((buf & PMT_CTL_PHY_RST) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout waiting for PHY Reset\n");
+ return -EIO;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "PHY reset complete\n");
+
+ ret = smsc75xx_set_mac_address(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to set mac address\n");
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n",
+ dev->net->dev_addr);
+
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n",
+ buf);
+
+ buf |= HW_CFG_BIR;
+
+ ret = smsc75xx_write_reg(dev, HW_CFG, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG after writing HW_CFG_BIR: 0x%08x\n",
+ buf);
+
+ if (!turbo_mode) {
+ buf = 0;
+ dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
+ } else if (dev->udev->speed == USB_SPEED_HIGH) {
+ buf = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
+ } else {
+ buf = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",
+ (ulong)dev->rx_urb_size);
+
+ ret = smsc75xx_write_reg(dev, BURST_CAP, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write BURST_CAP: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, BURST_CAP, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read BURST_CAP: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from BURST_CAP after writing: 0x%08x\n", buf);
+
+ ret = smsc75xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write BULK_IN_DLY: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, BULK_IN_DLY, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read BULK_IN_DLY: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from BULK_IN_DLY after writing: 0x%08x\n", buf);
+
+ if (turbo_mode) {
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf);
+
+ buf |= (HW_CFG_MEF | HW_CFG_BCE);
+
+ ret = smsc75xx_write_reg(dev, HW_CFG, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf);
+ }
+
+ /* set FIFO sizes */
+ buf = (MAX_RX_FIFO_SIZE - 512) / 512;
+ ret = smsc75xx_write_reg(dev, FCT_RX_FIFO_END, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FCT_RX_FIFO_END: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "FCT_RX_FIFO_END set to 0x%08x\n", buf);
+
+ buf = (MAX_TX_FIFO_SIZE - 512) / 512;
+ ret = smsc75xx_write_reg(dev, FCT_TX_FIFO_END, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FCT_TX_FIFO_END: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "FCT_TX_FIFO_END set to 0x%08x\n", buf);
+
+ ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write INT_STS: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, ID_REV, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read ID_REV: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", buf);
+
+ ret = smsc75xx_read_reg(dev, E2P_CMD, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read E2P_CMD: %d\n", ret);
+ return ret;
+ }
+
+ /* only set default GPIO/LED settings if no EEPROM is detected */
+ if (!(buf & E2P_CMD_LOADED)) {
+ ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read LED_GPIO_CFG: %d\n", ret);
+ return ret;
+ }
+
+ buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL);
+ buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL;
+
+ ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write LED_GPIO_CFG: %d\n", ret);
+ return ret;
+ }
+ }
+
+ ret = smsc75xx_write_reg(dev, FLOW, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FLOW: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, FCT_FLOW, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FCT_FLOW: %d\n", ret);
+ return ret;
+ }
+
+ /* Don't need rfe_ctl_lock during initialisation */
+ ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read RFE_CTL: %d\n", ret);
+ return ret;
+ }
+
+ pdata->rfe_ctl |= RFE_CTL_AB | RFE_CTL_DPF;
+
+ ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write RFE_CTL: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read RFE_CTL: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x\n",
+ pdata->rfe_ctl);
+
+ /* Enable or disable checksum offload engines */
+ smsc75xx_set_features(dev->net, dev->net->features);
+
+ smsc75xx_set_multicast(dev->net);
+
+ ret = smsc75xx_phy_initialize(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to initialize PHY: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, INT_EP_CTL, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read INT_EP_CTL: %d\n", ret);
+ return ret;
+ }
+
+ /* enable PHY interrupts */
+ buf |= INT_ENP_PHY_INT;
+
+ ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write INT_EP_CTL: %d\n", ret);
+ return ret;
+ }
+
+ /* allow mac to detect speed and duplex from phy */
+ ret = smsc75xx_read_reg(dev, MAC_CR, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read MAC_CR: %d\n", ret);
+ return ret;
+ }
+
+ buf |= (MAC_CR_ADD | MAC_CR_ASD);
+ ret = smsc75xx_write_reg(dev, MAC_CR, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_CR: %d\n", ret);
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, MAC_TX, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read MAC_TX: %d\n", ret);
+ return ret;
+ }
+
+ buf |= MAC_TX_TXEN;
+
+ ret = smsc75xx_write_reg(dev, MAC_TX, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_TX: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "MAC_TX set to 0x%08x\n", buf);
+
+ ret = smsc75xx_read_reg(dev, FCT_TX_CTL, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read FCT_TX_CTL: %d\n", ret);
+ return ret;
+ }
+
+ buf |= FCT_TX_CTL_EN;
+
+ ret = smsc75xx_write_reg(dev, FCT_TX_CTL, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FCT_TX_CTL: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x\n", buf);
+
+ ret = smsc75xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to set max rx frame length\n");
+ return ret;
+ }
+
+ ret = smsc75xx_read_reg(dev, MAC_RX, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret);
+ return ret;
+ }
+
+ buf |= MAC_RX_RXEN;
+
+ ret = smsc75xx_write_reg(dev, MAC_RX, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "MAC_RX set to 0x%08x\n", buf);
+
+ ret = smsc75xx_read_reg(dev, FCT_RX_CTL, &buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read FCT_RX_CTL: %d\n", ret);
+ return ret;
+ }
+
+ buf |= FCT_RX_CTL_EN;
+
+ ret = smsc75xx_write_reg(dev, FCT_RX_CTL, buf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write FCT_RX_CTL: %d\n", ret);
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "FCT_RX_CTL set to 0x%08x\n", buf);
+
+ netif_dbg(dev, ifup, dev->net, "smsc75xx_reset, return 0\n");
+ return 0;
+}
+
+static const struct net_device_ops smsc75xx_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = smsc75xx_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = smsc75xx_ioctl,
+ .ndo_set_rx_mode = smsc75xx_set_multicast,
+ .ndo_set_features = smsc75xx_set_features,
+};
+
+static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc75xx_priv *pdata = NULL;
+ int ret;
+
+ printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret);
+ return ret;
+ }
+
+ dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc75xx_priv),
+ GFP_KERNEL);
+
+ pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ if (!pdata)
+ return -ENOMEM;
+
+ pdata->dev = dev;
+
+ spin_lock_init(&pdata->rfe_ctl_lock);
+ mutex_init(&pdata->dataport_mutex);
+
+ INIT_WORK(&pdata->set_multicast, smsc75xx_deferred_multicast_write);
+
+ if (DEFAULT_TX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+
+ if (DEFAULT_RX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_RXCSUM;
+
+ dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+
+ ret = smsc75xx_wait_ready(dev, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "device not ready in smsc75xx_bind\n");
+ return ret;
+ }
+
+ smsc75xx_init_mac_address(dev);
+
+ /* Init all registers */
+ ret = smsc75xx_reset(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "smsc75xx_reset error %d\n", ret);
+ return ret;
+ }
+
+ dev->net->netdev_ops = &smsc75xx_netdev_ops;
+ dev->net->ethtool_ops = &smsc75xx_ethtool_ops;
+ dev->net->flags |= IFF_MULTICAST;
+ dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+ return 0;
+}
+
+static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ if (pdata) {
+ netif_dbg(dev, ifdown, dev->net, "free pdata\n");
+ kfree(pdata);
+ pdata = NULL;
+ dev->data[0] = 0;
+ }
+}
+
+static u16 smsc_crc(const u8 *buffer, size_t len)
+{
+ return bitrev16(crc16(0xFFFF, buffer, len));
+}
+
+static int smsc75xx_write_wuff(struct usbnet *dev, int filter, u32 wuf_cfg,
+ u32 wuf_mask1)
+{
+ int cfg_base = WUF_CFGX + filter * 4;
+ int mask_base = WUF_MASKX + filter * 16;
+ int ret;
+
+ ret = smsc75xx_write_reg(dev, cfg_base, wuf_cfg);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_CFGX\n");
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, mask_base, wuf_mask1);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_MASKX\n");
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, mask_base + 4, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_MASKX\n");
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, mask_base + 8, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_MASKX\n");
+ return ret;
+ }
+
+ ret = smsc75xx_write_reg(dev, mask_base + 12, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_MASKX\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int smsc75xx_enter_suspend0(struct usbnet *dev)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val &= (~(PMT_CTL_SUS_MODE | PMT_CTL_PHY_RST));
+ val |= PMT_CTL_SUS_MODE_0 | PMT_CTL_WOL_EN | PMT_CTL_WUPS;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND0;
+
+ return 0;
+}
+
+static int smsc75xx_enter_suspend1(struct usbnet *dev)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST);
+ val |= PMT_CTL_SUS_MODE_1;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ /* clear wol status, enable energy detection */
+ val &= ~PMT_CTL_WUPS;
+ val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN);
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND1;
+
+ return 0;
+}
+
+static int smsc75xx_enter_suspend2(struct usbnet *dev)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST);
+ val |= PMT_CTL_SUS_MODE_2;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND2;
+
+ return 0;
+}
+
+static int smsc75xx_enter_suspend3(struct usbnet *dev)
+{
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc75xx_read_reg_nopm(dev, FCT_RX_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading FCT_RX_CTL\n");
+ return ret;
+ }
+
+ if (val & FCT_RX_CTL_RXUSED) {
+ netdev_dbg(dev->net, "rx fifo not empty in autosuspend\n");
+ return -EBUSY;
+ }
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST);
+ val |= PMT_CTL_SUS_MODE_3 | PMT_CTL_RES_CLR_WKP_EN;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ /* clear wol status */
+ val &= ~PMT_CTL_WUPS;
+ val |= PMT_CTL_WUPS_WOL;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND3;
+
+ return 0;
+}
+
+static int smsc75xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask)
+{
+ struct mii_if_info *mii = &dev->mii;
+ int ret;
+
+ netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n");
+
+ /* read to clear */
+ ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_SRC);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PHY_INT_SRC\n");
+ return ret;
+ }
+
+ /* enable interrupt source */
+ ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_MASK);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PHY_INT_MASK\n");
+ return ret;
+ }
+
+ ret |= mask;
+
+ smsc75xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_INT_MASK, ret);
+
+ return 0;
+}
+
+static int smsc75xx_link_ok_nopm(struct usbnet *dev)
+{
+ struct mii_if_info *mii = &dev->mii;
+ int ret;
+
+ /* first, a dummy read, needed to latch some MII phys */
+ ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_BMSR\n");
+ return ret;
+ }
+
+ ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_BMSR\n");
+ return ret;
+ }
+
+ return !!(ret & BMSR_LSTATUS);
+}
+
+static int smsc75xx_autosuspend(struct usbnet *dev, u32 link_up)
+{
+ int ret;
+
+ if (!netif_running(dev->net)) {
+ /* interface is ifconfig down so fully power down hw */
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n");
+ return smsc75xx_enter_suspend2(dev);
+ }
+
+ if (!link_up) {
+ /* link is down so enter EDPD mode */
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n");
+
+ /* enable PHY wakeup events for if cable is attached */
+ ret = smsc75xx_enable_phy_wakeup_interrupts(dev,
+ PHY_INT_MASK_ANEG_COMP);
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ return ret;
+ }
+
+ netdev_info(dev->net, "entering SUSPEND1 mode\n");
+ return smsc75xx_enter_suspend1(dev);
+ }
+
+ /* enable PHY wakeup events so we remote wakeup if cable is pulled */
+ ret = smsc75xx_enable_phy_wakeup_interrupts(dev,
+ PHY_INT_MASK_LINK_DOWN);
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ return ret;
+ }
+
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n");
+ return smsc75xx_enter_suspend3(dev);
+}
+
+static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u32 val, link_up;
+ int ret;
+
+ ret = usbnet_suspend(intf, message);
+ if (ret < 0) {
+ netdev_warn(dev->net, "usbnet_suspend error\n");
+ return ret;
+ }
+
+ if (pdata->suspend_flags) {
+ netdev_warn(dev->net, "error during last resume\n");
+ pdata->suspend_flags = 0;
+ }
+
+ /* determine if link is up using only _nopm functions */
+ link_up = smsc75xx_link_ok_nopm(dev);
+
+ if (message.event == PM_EVENT_AUTO_SUSPEND) {
+ ret = smsc75xx_autosuspend(dev, link_up);
+ goto done;
+ }
+
+ /* if we get this far we're not autosuspending */
+ /* if no wol options set, or if link is down and we're not waking on
+ * PHY activity, enter lowest power SUSPEND2 mode
+ */
+ if (!(pdata->wolopts & SUPPORTED_WAKE) ||
+ !(link_up || (pdata->wolopts & WAKE_PHY))) {
+ netdev_info(dev->net, "entering SUSPEND2 mode\n");
+
+ /* disable energy detect (link up) & wake up events */
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val &= ~(WUCSR_MPEN | WUCSR_WUEN);
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ goto done;
+ }
+
+ val &= ~(PMT_CTL_ED_EN | PMT_CTL_WOL_EN);
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ goto done;
+ }
+
+ ret = smsc75xx_enter_suspend2(dev);
+ goto done;
+ }
+
+ if (pdata->wolopts & WAKE_PHY) {
+ ret = smsc75xx_enable_phy_wakeup_interrupts(dev,
+ (PHY_INT_MASK_ANEG_COMP | PHY_INT_MASK_LINK_DOWN));
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ goto done;
+ }
+
+ /* if link is down then configure EDPD and enter SUSPEND1,
+ * otherwise enter SUSPEND0 below
+ */
+ if (!link_up) {
+ struct mii_if_info *mii = &dev->mii;
+ netdev_info(dev->net, "entering SUSPEND1 mode\n");
+
+ /* enable energy detect power-down mode */
+ ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id,
+ PHY_MODE_CTRL_STS);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PHY_MODE_CTRL_STS\n");
+ goto done;
+ }
+
+ ret |= MODE_CTRL_STS_EDPWRDOWN;
+
+ smsc75xx_mdio_write_nopm(dev->net, mii->phy_id,
+ PHY_MODE_CTRL_STS, ret);
+
+ /* enter SUSPEND1 mode */
+ ret = smsc75xx_enter_suspend1(dev);
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & (WAKE_MCAST | WAKE_ARP)) {
+ int i, filter = 0;
+
+ /* disable all filters */
+ for (i = 0; i < WUF_NUM; i++) {
+ ret = smsc75xx_write_reg_nopm(dev, WUF_CFGX + i * 4, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUF_CFGX\n");
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & WAKE_MCAST) {
+ const u8 mcast[] = {0x01, 0x00, 0x5E};
+ netdev_info(dev->net, "enabling multicast detection\n");
+
+ val = WUF_CFGX_EN | WUF_CFGX_ATYPE_MULTICAST
+ | smsc_crc(mcast, 3);
+ ret = smsc75xx_write_wuff(dev, filter++, val, 0x0007);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing wakeup filter\n");
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & WAKE_ARP) {
+ const u8 arp[] = {0x08, 0x06};
+ netdev_info(dev->net, "enabling ARP detection\n");
+
+ val = WUF_CFGX_EN | WUF_CFGX_ATYPE_ALL | (0x0C << 16)
+ | smsc_crc(arp, 2);
+ ret = smsc75xx_write_wuff(dev, filter++, val, 0x0003);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing wakeup filter\n");
+ goto done;
+ }
+ }
+
+ /* clear any pending pattern match packet status */
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val |= WUCSR_WUFR;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+
+ netdev_info(dev->net, "enabling packet match detection\n");
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val |= WUCSR_WUEN;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+ } else {
+ netdev_info(dev->net, "disabling packet match detection\n");
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val &= ~WUCSR_WUEN;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+ }
+
+ /* disable magic, bcast & unicast wakeup sources */
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val &= ~(WUCSR_MPEN | WUCSR_BCST_EN | WUCSR_PFDA_EN);
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+
+ if (pdata->wolopts & WAKE_PHY) {
+ netdev_info(dev->net, "enabling PHY wakeup\n");
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ goto done;
+ }
+
+ /* clear wol status, enable energy detection */
+ val &= ~PMT_CTL_WUPS;
+ val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN);
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & WAKE_MAGIC) {
+ netdev_info(dev->net, "enabling magic packet wakeup\n");
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ /* clear any pending magic packet status */
+ val |= WUCSR_MPR | WUCSR_MPEN;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & WAKE_BCAST) {
+ netdev_info(dev->net, "enabling broadcast detection\n");
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val |= WUCSR_BCAST_FR | WUCSR_BCST_EN;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & WAKE_UCAST) {
+ netdev_info(dev->net, "enabling unicast detection\n");
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ goto done;
+ }
+
+ val |= WUCSR_WUFR | WUCSR_PFDA_EN;
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ goto done;
+ }
+ }
+
+ /* enable receiver to enable frame reception */
+ ret = smsc75xx_read_reg_nopm(dev, MAC_RX, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret);
+ goto done;
+ }
+
+ val |= MAC_RX_RXEN;
+
+ ret = smsc75xx_write_reg_nopm(dev, MAC_RX, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret);
+ goto done;
+ }
+
+ /* some wol options are enabled, so enter SUSPEND0 */
+ netdev_info(dev->net, "entering SUSPEND0 mode\n");
+ ret = smsc75xx_enter_suspend0(dev);
+
+done:
+ /*
+ * TODO: resume() might need to handle the suspend failure
+ * in system sleep
+ */
+ if (ret && PMSG_IS_AUTO(message))
+ usbnet_resume(intf);
+ return ret;
+}
+
+static int smsc75xx_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+ u8 suspend_flags = pdata->suspend_flags;
+ int ret;
+ u32 val;
+
+ netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags);
+
+ /* do this first to ensure it's cleared even in error case */
+ pdata->suspend_flags = 0;
+
+ if (suspend_flags & SUSPEND_ALLMODES) {
+ /* Disable wakeup sources */
+ ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading WUCSR\n");
+ return ret;
+ }
+
+ val &= ~(WUCSR_WUEN | WUCSR_MPEN | WUCSR_PFDA_EN
+ | WUCSR_BCST_EN);
+
+ ret = smsc75xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing WUCSR\n");
+ return ret;
+ }
+
+ /* clear wake-up status */
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val &= ~PMT_CTL_WOL_EN;
+ val |= PMT_CTL_WUPS;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+ }
+
+ if (suspend_flags & SUSPEND_SUSPEND2) {
+ netdev_info(dev->net, "resuming from SUSPEND2\n");
+
+ ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading PMT_CTL\n");
+ return ret;
+ }
+
+ val |= PMT_CTL_PHY_PWRUP;
+
+ ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing PMT_CTL\n");
+ return ret;
+ }
+ }
+
+ ret = smsc75xx_wait_ready(dev, 1);
+ if (ret < 0) {
+ netdev_warn(dev->net, "device not ready in smsc75xx_resume\n");
+ return ret;
+ }
+
+ return usbnet_resume(intf);
+}
+
+static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb,
+ u32 rx_cmd_a, u32 rx_cmd_b)
+{
+ if (!(dev->net->features & NETIF_F_RXCSUM) ||
+ unlikely(rx_cmd_a & RX_CMD_A_LCSM)) {
+ skb->ip_summed = CHECKSUM_NONE;
+ } else {
+ skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT));
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+}
+
+static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ while (skb->len > 0) {
+ u32 rx_cmd_a, rx_cmd_b, align_count, size;
+ struct sk_buff *ax_skb;
+ unsigned char *packet;
+
+ memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a));
+ le32_to_cpus(&rx_cmd_a);
+ skb_pull(skb, 4);
+
+ memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b));
+ le32_to_cpus(&rx_cmd_b);
+ skb_pull(skb, 4 + RXW_PADDING);
+
+ packet = skb->data;
+
+ /* get the packet length */
+ size = (rx_cmd_a & RX_CMD_A_LEN) - RXW_PADDING;
+ align_count = (4 - ((size + RXW_PADDING) % 4)) % 4;
+
+ if (unlikely(rx_cmd_a & RX_CMD_A_RED)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "Error rx_cmd_a=0x%08x\n", rx_cmd_a);
+ dev->net->stats.rx_errors++;
+ dev->net->stats.rx_dropped++;
+
+ if (rx_cmd_a & RX_CMD_A_FCS)
+ dev->net->stats.rx_crc_errors++;
+ else if (rx_cmd_a & (RX_CMD_A_LONG | RX_CMD_A_RUNT))
+ dev->net->stats.rx_frame_errors++;
+ } else {
+ /* MAX_SINGLE_PACKET_SIZE + 4(CRC) + 2(COE) + 4(Vlan) */
+ if (unlikely(size > (MAX_SINGLE_PACKET_SIZE + ETH_HLEN + 12))) {
+ netif_dbg(dev, rx_err, dev->net,
+ "size err rx_cmd_a=0x%08x\n",
+ rx_cmd_a);
+ return 0;
+ }
+
+ /* last frame in this batch */
+ if (skb->len == size) {
+ smsc75xx_rx_csum_offload(dev, skb, rx_cmd_a,
+ rx_cmd_b);
+
+ skb_trim(skb, skb->len - 4); /* remove fcs */
+ skb->truesize = size + sizeof(struct sk_buff);
+
+ return 1;
+ }
+
+ ax_skb = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!ax_skb)) {
+ netdev_warn(dev->net, "Error allocating skb\n");
+ return 0;
+ }
+
+ ax_skb->len = size;
+ ax_skb->data = packet;
+ skb_set_tail_pointer(ax_skb, size);
+
+ smsc75xx_rx_csum_offload(dev, ax_skb, rx_cmd_a,
+ rx_cmd_b);
+
+ skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
+ ax_skb->truesize = size + sizeof(struct sk_buff);
+
+ usbnet_skb_return(dev, ax_skb);
+ }
+
+ skb_pull(skb, size);
+
+ /* padding bytes before the next frame starts */
+ if (skb->len)
+ skb_pull(skb, align_count);
+ }
+
+ return 1;
+}
+
+static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ u32 tx_cmd_a, tx_cmd_b;
+
+ if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) {
+ struct sk_buff *skb2 =
+ skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ tx_cmd_a |= TX_CMD_A_IPE | TX_CMD_A_TPE;
+
+ if (skb_is_gso(skb)) {
+ u16 mss = max(skb_shinfo(skb)->gso_size, TX_MSS_MIN);
+ tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT) & TX_CMD_B_MSS;
+
+ tx_cmd_a |= TX_CMD_A_LSO;
+ } else {
+ tx_cmd_b = 0;
+ }
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_cmd_b);
+ memcpy(skb->data, &tx_cmd_b, 4);
+
+ skb_push(skb, 4);
+ cpu_to_le32s(&tx_cmd_a);
+ memcpy(skb->data, &tx_cmd_a, 4);
+
+ return skb;
+}
+
+static int smsc75xx_manage_power(struct usbnet *dev, int on)
+{
+ dev->intf->needs_remote_wakeup = on;
+ return 0;
+}
+
+static const struct driver_info smsc75xx_info = {
+ .description = "smsc75xx USB 2.0 Gigabit Ethernet",
+ .bind = smsc75xx_bind,
+ .unbind = smsc75xx_unbind,
+ .link_reset = smsc75xx_link_reset,
+ .reset = smsc75xx_reset,
+ .rx_fixup = smsc75xx_rx_fixup,
+ .tx_fixup = smsc75xx_tx_fixup,
+ .status = smsc75xx_status,
+ .manage_power = smsc75xx_manage_power,
+ .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ /* SMSC7500 USB Gigabit Ethernet Device */
+ USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7500),
+ .driver_info = (unsigned long) &smsc75xx_info,
+ },
+ {
+ /* SMSC7500 USB Gigabit Ethernet Device */
+ USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7505),
+ .driver_info = (unsigned long) &smsc75xx_info,
+ },
+ { }, /* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver smsc75xx_driver = {
+ .name = SMSC_CHIPNAME,
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = smsc75xx_suspend,
+ .resume = smsc75xx_resume,
+ .reset_resume = smsc75xx_resume,
+ .disconnect = usbnet_disconnect,
+ .disable_hub_initiated_lpm = 1,
+ .supports_autosuspend = 1,
+};
+
+module_usb_driver(smsc75xx_driver);
+
+MODULE_AUTHOR("Nancy Lin");
+MODULE_AUTHOR("Steve Glendinning <steve.glendinning@shawell.net>");
+MODULE_DESCRIPTION("SMSC75XX USB 2.0 Gigabit Ethernet Devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc75xx.h b/drivers/net/usb/smsc75xx.h
new file mode 100644
index 0000000..2c7ea8f
--- /dev/null
+++ b/drivers/net/usb/smsc75xx.h
@@ -0,0 +1,421 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2010 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+#ifndef _SMSC75XX_H
+#define _SMSC75XX_H
+
+/* Tx command words */
+#define TX_CMD_A_LSO (0x08000000)
+#define TX_CMD_A_IPE (0x04000000)
+#define TX_CMD_A_TPE (0x02000000)
+#define TX_CMD_A_IVTG (0x01000000)
+#define TX_CMD_A_RVTG (0x00800000)
+#define TX_CMD_A_FCS (0x00400000)
+#define TX_CMD_A_LEN (0x000FFFFF)
+
+#define TX_CMD_B_MSS (0x3FFF0000)
+#define TX_CMD_B_MSS_SHIFT (16)
+#define TX_MSS_MIN ((u16)8)
+#define TX_CMD_B_VTAG (0x0000FFFF)
+
+/* Rx command words */
+#define RX_CMD_A_ICE (0x80000000)
+#define RX_CMD_A_TCE (0x40000000)
+#define RX_CMD_A_IPV (0x20000000)
+#define RX_CMD_A_PID (0x18000000)
+#define RX_CMD_A_PID_NIP (0x00000000)
+#define RX_CMD_A_PID_TCP (0x08000000)
+#define RX_CMD_A_PID_UDP (0x10000000)
+#define RX_CMD_A_PID_PP (0x18000000)
+#define RX_CMD_A_PFF (0x04000000)
+#define RX_CMD_A_BAM (0x02000000)
+#define RX_CMD_A_MAM (0x01000000)
+#define RX_CMD_A_FVTG (0x00800000)
+#define RX_CMD_A_RED (0x00400000)
+#define RX_CMD_A_RWT (0x00200000)
+#define RX_CMD_A_RUNT (0x00100000)
+#define RX_CMD_A_LONG (0x00080000)
+#define RX_CMD_A_RXE (0x00040000)
+#define RX_CMD_A_DRB (0x00020000)
+#define RX_CMD_A_FCS (0x00010000)
+#define RX_CMD_A_UAM (0x00008000)
+#define RX_CMD_A_LCSM (0x00004000)
+#define RX_CMD_A_LEN (0x00003FFF)
+
+#define RX_CMD_B_CSUM (0xFFFF0000)
+#define RX_CMD_B_CSUM_SHIFT (16)
+#define RX_CMD_B_VTAG (0x0000FFFF)
+
+/* SCSRs */
+#define ID_REV (0x0000)
+
+#define FPGA_REV (0x0004)
+
+#define BOND_CTL (0x0008)
+
+#define INT_STS (0x000C)
+#define INT_STS_RDFO_INT (0x00400000)
+#define INT_STS_TXE_INT (0x00200000)
+#define INT_STS_MACRTO_INT (0x00100000)
+#define INT_STS_TX_DIS_INT (0x00080000)
+#define INT_STS_RX_DIS_INT (0x00040000)
+#define INT_STS_PHY_INT_ (0x00020000)
+#define INT_STS_MAC_ERR_INT (0x00008000)
+#define INT_STS_TDFU (0x00004000)
+#define INT_STS_TDFO (0x00002000)
+#define INT_STS_GPIOS (0x00000FFF)
+#define INT_STS_CLEAR_ALL (0xFFFFFFFF)
+
+#define HW_CFG (0x0010)
+#define HW_CFG_SMDET_STS (0x00008000)
+#define HW_CFG_SMDET_EN (0x00004000)
+#define HW_CFG_EEM (0x00002000)
+#define HW_CFG_RST_PROTECT (0x00001000)
+#define HW_CFG_PORT_SWAP (0x00000800)
+#define HW_CFG_PHY_BOOST (0x00000600)
+#define HW_CFG_PHY_BOOST_NORMAL (0x00000000)
+#define HW_CFG_PHY_BOOST_4 (0x00002000)
+#define HW_CFG_PHY_BOOST_8 (0x00004000)
+#define HW_CFG_PHY_BOOST_12 (0x00006000)
+#define HW_CFG_LEDB (0x00000100)
+#define HW_CFG_BIR (0x00000080)
+#define HW_CFG_SBP (0x00000040)
+#define HW_CFG_IME (0x00000020)
+#define HW_CFG_MEF (0x00000010)
+#define HW_CFG_ETC (0x00000008)
+#define HW_CFG_BCE (0x00000004)
+#define HW_CFG_LRST (0x00000002)
+#define HW_CFG_SRST (0x00000001)
+
+#define PMT_CTL (0x0014)
+#define PMT_CTL_PHY_PWRUP (0x00000400)
+#define PMT_CTL_RES_CLR_WKP_EN (0x00000100)
+#define PMT_CTL_DEV_RDY (0x00000080)
+#define PMT_CTL_SUS_MODE (0x00000060)
+#define PMT_CTL_SUS_MODE_0 (0x00000000)
+#define PMT_CTL_SUS_MODE_1 (0x00000020)
+#define PMT_CTL_SUS_MODE_2 (0x00000040)
+#define PMT_CTL_SUS_MODE_3 (0x00000060)
+#define PMT_CTL_PHY_RST (0x00000010)
+#define PMT_CTL_WOL_EN (0x00000008)
+#define PMT_CTL_ED_EN (0x00000004)
+#define PMT_CTL_WUPS (0x00000003)
+#define PMT_CTL_WUPS_NO (0x00000000)
+#define PMT_CTL_WUPS_ED (0x00000001)
+#define PMT_CTL_WUPS_WOL (0x00000002)
+#define PMT_CTL_WUPS_MULTI (0x00000003)
+
+#define LED_GPIO_CFG (0x0018)
+#define LED_GPIO_CFG_LED2_FUN_SEL (0x80000000)
+#define LED_GPIO_CFG_LED10_FUN_SEL (0x40000000)
+#define LED_GPIO_CFG_LEDGPIO_EN (0x0000F000)
+#define LED_GPIO_CFG_LEDGPIO_EN_0 (0x00001000)
+#define LED_GPIO_CFG_LEDGPIO_EN_1 (0x00002000)
+#define LED_GPIO_CFG_LEDGPIO_EN_2 (0x00004000)
+#define LED_GPIO_CFG_LEDGPIO_EN_3 (0x00008000)
+#define LED_GPIO_CFG_GPBUF (0x00000F00)
+#define LED_GPIO_CFG_GPBUF_0 (0x00000100)
+#define LED_GPIO_CFG_GPBUF_1 (0x00000200)
+#define LED_GPIO_CFG_GPBUF_2 (0x00000400)
+#define LED_GPIO_CFG_GPBUF_3 (0x00000800)
+#define LED_GPIO_CFG_GPDIR (0x000000F0)
+#define LED_GPIO_CFG_GPDIR_0 (0x00000010)
+#define LED_GPIO_CFG_GPDIR_1 (0x00000020)
+#define LED_GPIO_CFG_GPDIR_2 (0x00000040)
+#define LED_GPIO_CFG_GPDIR_3 (0x00000080)
+#define LED_GPIO_CFG_GPDATA (0x0000000F)
+#define LED_GPIO_CFG_GPDATA_0 (0x00000001)
+#define LED_GPIO_CFG_GPDATA_1 (0x00000002)
+#define LED_GPIO_CFG_GPDATA_2 (0x00000004)
+#define LED_GPIO_CFG_GPDATA_3 (0x00000008)
+
+#define GPIO_CFG (0x001C)
+#define GPIO_CFG_SHIFT (24)
+#define GPIO_CFG_GPEN (0xFF000000)
+#define GPIO_CFG_GPBUF (0x00FF0000)
+#define GPIO_CFG_GPDIR (0x0000FF00)
+#define GPIO_CFG_GPDATA (0x000000FF)
+
+#define GPIO_WAKE (0x0020)
+#define GPIO_WAKE_PHY_LINKUP_EN (0x80000000)
+#define GPIO_WAKE_POL (0x0FFF0000)
+#define GPIO_WAKE_POL_SHIFT (16)
+#define GPIO_WAKE_WK (0x00000FFF)
+
+#define DP_SEL (0x0024)
+#define DP_SEL_DPRDY (0x80000000)
+#define DP_SEL_RSEL (0x0000000F)
+#define DP_SEL_URX (0x00000000)
+#define DP_SEL_VHF (0x00000001)
+#define DP_SEL_VHF_HASH_LEN (16)
+#define DP_SEL_VHF_VLAN_LEN (128)
+#define DP_SEL_LSO_HEAD (0x00000002)
+#define DP_SEL_FCT_RX (0x00000003)
+#define DP_SEL_FCT_TX (0x00000004)
+#define DP_SEL_DESCRIPTOR (0x00000005)
+#define DP_SEL_WOL (0x00000006)
+
+#define DP_CMD (0x0028)
+#define DP_CMD_WRITE (0x01)
+#define DP_CMD_READ (0x00)
+
+#define DP_ADDR (0x002C)
+
+#define DP_DATA (0x0030)
+
+#define BURST_CAP (0x0034)
+#define BURST_CAP_MASK (0x0000000F)
+
+#define INT_EP_CTL (0x0038)
+#define INT_EP_CTL_INTEP_ON (0x80000000)
+#define INT_EP_CTL_RDFO_EN (0x00400000)
+#define INT_EP_CTL_TXE_EN (0x00200000)
+#define INT_EP_CTL_MACROTO_EN (0x00100000)
+#define INT_EP_CTL_TX_DIS_EN (0x00080000)
+#define INT_EP_CTL_RX_DIS_EN (0x00040000)
+#define INT_EP_CTL_PHY_EN_ (0x00020000)
+#define INT_EP_CTL_MAC_ERR_EN (0x00008000)
+#define INT_EP_CTL_TDFU_EN (0x00004000)
+#define INT_EP_CTL_TDFO_EN (0x00002000)
+#define INT_EP_CTL_RX_FIFO_EN (0x00001000)
+#define INT_EP_CTL_GPIOX_EN (0x00000FFF)
+
+#define BULK_IN_DLY (0x003C)
+#define BULK_IN_DLY_MASK (0xFFFF)
+
+#define E2P_CMD (0x0040)
+#define E2P_CMD_BUSY (0x80000000)
+#define E2P_CMD_MASK (0x70000000)
+#define E2P_CMD_READ (0x00000000)
+#define E2P_CMD_EWDS (0x10000000)
+#define E2P_CMD_EWEN (0x20000000)
+#define E2P_CMD_WRITE (0x30000000)
+#define E2P_CMD_WRAL (0x40000000)
+#define E2P_CMD_ERASE (0x50000000)
+#define E2P_CMD_ERAL (0x60000000)
+#define E2P_CMD_RELOAD (0x70000000)
+#define E2P_CMD_TIMEOUT (0x00000400)
+#define E2P_CMD_LOADED (0x00000200)
+#define E2P_CMD_ADDR (0x000001FF)
+
+#define MAX_EEPROM_SIZE (512)
+
+#define E2P_DATA (0x0044)
+#define E2P_DATA_MASK_ (0x000000FF)
+
+#define RFE_CTL (0x0060)
+#define RFE_CTL_TCPUDP_CKM (0x00001000)
+#define RFE_CTL_IP_CKM (0x00000800)
+#define RFE_CTL_AB (0x00000400)
+#define RFE_CTL_AM (0x00000200)
+#define RFE_CTL_AU (0x00000100)
+#define RFE_CTL_VS (0x00000080)
+#define RFE_CTL_UF (0x00000040)
+#define RFE_CTL_VF (0x00000020)
+#define RFE_CTL_SPF (0x00000010)
+#define RFE_CTL_MHF (0x00000008)
+#define RFE_CTL_DHF (0x00000004)
+#define RFE_CTL_DPF (0x00000002)
+#define RFE_CTL_RST_RF (0x00000001)
+
+#define VLAN_TYPE (0x0064)
+#define VLAN_TYPE_MASK (0x0000FFFF)
+
+#define FCT_RX_CTL (0x0090)
+#define FCT_RX_CTL_EN (0x80000000)
+#define FCT_RX_CTL_RST (0x40000000)
+#define FCT_RX_CTL_SBF (0x02000000)
+#define FCT_RX_CTL_OVERFLOW (0x01000000)
+#define FCT_RX_CTL_FRM_DROP (0x00800000)
+#define FCT_RX_CTL_RX_NOT_EMPTY (0x00400000)
+#define FCT_RX_CTL_RX_EMPTY (0x00200000)
+#define FCT_RX_CTL_RX_DISABLED (0x00100000)
+#define FCT_RX_CTL_RXUSED (0x0000FFFF)
+
+#define FCT_TX_CTL (0x0094)
+#define FCT_TX_CTL_EN (0x80000000)
+#define FCT_TX_CTL_RST (0x40000000)
+#define FCT_TX_CTL_TX_NOT_EMPTY (0x00400000)
+#define FCT_TX_CTL_TX_EMPTY (0x00200000)
+#define FCT_TX_CTL_TX_DISABLED (0x00100000)
+#define FCT_TX_CTL_TXUSED (0x0000FFFF)
+
+#define FCT_RX_FIFO_END (0x0098)
+#define FCT_RX_FIFO_END_MASK (0x0000007F)
+
+#define FCT_TX_FIFO_END (0x009C)
+#define FCT_TX_FIFO_END_MASK (0x0000003F)
+
+#define FCT_FLOW (0x00A0)
+#define FCT_FLOW_THRESHOLD_OFF (0x00007F00)
+#define FCT_FLOW_THRESHOLD_OFF_SHIFT (8)
+#define FCT_FLOW_THRESHOLD_ON (0x0000007F)
+
+/* MAC CSRs */
+#define MAC_CR (0x100)
+#define MAC_CR_ADP (0x00002000)
+#define MAC_CR_ADD (0x00001000)
+#define MAC_CR_ASD (0x00000800)
+#define MAC_CR_INT_LOOP (0x00000400)
+#define MAC_CR_BOLMT (0x000000C0)
+#define MAC_CR_FDPX (0x00000008)
+#define MAC_CR_CFG (0x00000006)
+#define MAC_CR_CFG_10 (0x00000000)
+#define MAC_CR_CFG_100 (0x00000002)
+#define MAC_CR_CFG_1000 (0x00000004)
+#define MAC_CR_RST (0x00000001)
+
+#define MAC_RX (0x104)
+#define MAC_RX_MAX_SIZE (0x3FFF0000)
+#define MAC_RX_MAX_SIZE_SHIFT (16)
+#define MAC_RX_FCS_STRIP (0x00000010)
+#define MAC_RX_FSE (0x00000004)
+#define MAC_RX_RXD (0x00000002)
+#define MAC_RX_RXEN (0x00000001)
+
+#define MAC_TX (0x108)
+#define MAC_TX_BFCS (0x00000004)
+#define MAC_TX_TXD (0x00000002)
+#define MAC_TX_TXEN (0x00000001)
+
+#define FLOW (0x10C)
+#define FLOW_FORCE_FC (0x80000000)
+#define FLOW_TX_FCEN (0x40000000)
+#define FLOW_RX_FCEN (0x20000000)
+#define FLOW_FPF (0x10000000)
+#define FLOW_PAUSE_TIME (0x0000FFFF)
+
+#define RAND_SEED (0x110)
+#define RAND_SEED_MASK (0x0000FFFF)
+
+#define ERR_STS (0x114)
+#define ERR_STS_FCS_ERR (0x00000100)
+#define ERR_STS_LFRM_ERR (0x00000080)
+#define ERR_STS_RUNT_ERR (0x00000040)
+#define ERR_STS_COLLISION_ERR (0x00000010)
+#define ERR_STS_ALIGN_ERR (0x00000008)
+#define ERR_STS_URUN_ERR (0x00000004)
+
+#define RX_ADDRH (0x118)
+#define RX_ADDRH_MASK (0x0000FFFF)
+
+#define RX_ADDRL (0x11C)
+
+#define MII_ACCESS (0x120)
+#define MII_ACCESS_PHY_ADDR (0x0000F800)
+#define MII_ACCESS_PHY_ADDR_SHIFT (11)
+#define MII_ACCESS_REG_ADDR (0x000007C0)
+#define MII_ACCESS_REG_ADDR_SHIFT (6)
+#define MII_ACCESS_READ (0x00000000)
+#define MII_ACCESS_WRITE (0x00000002)
+#define MII_ACCESS_BUSY (0x00000001)
+
+#define MII_DATA (0x124)
+#define MII_DATA_MASK (0x0000FFFF)
+
+#define WUCSR (0x140)
+#define WUCSR_PFDA_FR (0x00000080)
+#define WUCSR_WUFR (0x00000040)
+#define WUCSR_MPR (0x00000020)
+#define WUCSR_BCAST_FR (0x00000010)
+#define WUCSR_PFDA_EN (0x00000008)
+#define WUCSR_WUEN (0x00000004)
+#define WUCSR_MPEN (0x00000002)
+#define WUCSR_BCST_EN (0x00000001)
+
+#define WUF_CFGX (0x144)
+#define WUF_CFGX_EN (0x80000000)
+#define WUF_CFGX_ATYPE (0x03000000)
+#define WUF_CFGX_ATYPE_UNICAST (0x00000000)
+#define WUF_CFGX_ATYPE_MULTICAST (0x02000000)
+#define WUF_CFGX_ATYPE_ALL (0x03000000)
+#define WUF_CFGX_PATTERN_OFFSET (0x007F0000)
+#define WUF_CFGX_PATTERN_OFFSET_SHIFT (16)
+#define WUF_CFGX_CRC16 (0x0000FFFF)
+#define WUF_NUM (8)
+
+#define WUF_MASKX (0x170)
+#define WUF_MASKX_AVALID (0x80000000)
+#define WUF_MASKX_ATYPE (0x40000000)
+
+#define ADDR_FILTX (0x300)
+#define ADDR_FILTX_FB_VALID (0x80000000)
+#define ADDR_FILTX_FB_TYPE (0x40000000)
+#define ADDR_FILTX_FB_ADDRHI (0x0000FFFF)
+#define ADDR_FILTX_SB_ADDRLO (0xFFFFFFFF)
+
+#define WUCSR2 (0x500)
+#define WUCSR2_NS_RCD (0x00000040)
+#define WUCSR2_ARP_RCD (0x00000020)
+#define WUCSR2_TCPSYN_RCD (0x00000010)
+#define WUCSR2_NS_OFFLOAD (0x00000004)
+#define WUCSR2_ARP_OFFLOAD (0x00000002)
+#define WUCSR2_TCPSYN_OFFLOAD (0x00000001)
+
+#define WOL_FIFO_STS (0x504)
+
+#define IPV6_ADDRX (0x510)
+
+#define IPV4_ADDRX (0x590)
+
+
+/* Vendor-specific PHY Definitions */
+
+/* Mode Control/Status Register */
+#define PHY_MODE_CTRL_STS (17)
+#define MODE_CTRL_STS_EDPWRDOWN ((u16)0x2000)
+#define MODE_CTRL_STS_ENERGYON ((u16)0x0002)
+
+#define PHY_INT_SRC (29)
+#define PHY_INT_SRC_ENERGY_ON ((u16)0x0080)
+#define PHY_INT_SRC_ANEG_COMP ((u16)0x0040)
+#define PHY_INT_SRC_REMOTE_FAULT ((u16)0x0020)
+#define PHY_INT_SRC_LINK_DOWN ((u16)0x0010)
+#define PHY_INT_SRC_CLEAR_ALL ((u16)0xffff)
+
+#define PHY_INT_MASK (30)
+#define PHY_INT_MASK_ENERGY_ON ((u16)0x0080)
+#define PHY_INT_MASK_ANEG_COMP ((u16)0x0040)
+#define PHY_INT_MASK_REMOTE_FAULT ((u16)0x0020)
+#define PHY_INT_MASK_LINK_DOWN ((u16)0x0010)
+#define PHY_INT_MASK_DEFAULT (PHY_INT_MASK_ANEG_COMP | \
+ PHY_INT_MASK_LINK_DOWN)
+
+#define PHY_SPECIAL (31)
+#define PHY_SPECIAL_SPD ((u16)0x001C)
+#define PHY_SPECIAL_SPD_10HALF ((u16)0x0004)
+#define PHY_SPECIAL_SPD_10FULL ((u16)0x0014)
+#define PHY_SPECIAL_SPD_100HALF ((u16)0x0008)
+#define PHY_SPECIAL_SPD_100FULL ((u16)0x0018)
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
+#define USB_VENDOR_REQUEST_GET_STATS 0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_RDFO_INT ((u32)BIT(22))
+#define INT_ENP_TXE_INT ((u32)BIT(21))
+#define INT_ENP_TX_DIS_INT ((u32)BIT(19))
+#define INT_ENP_RX_DIS_INT ((u32)BIT(18))
+#define INT_ENP_PHY_INT ((u32)BIT(17))
+#define INT_ENP_MAC_ERR_INT ((u32)BIT(15))
+#define INT_ENP_RX_FIFO_DATA_INT ((u32)BIT(12))
+
+#endif /* _SMSC75XX_H */
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
new file mode 100644
index 0000000..66b3ab9
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.c
@@ -0,0 +1,2027 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/bitrev.h>
+#include <linux/crc16.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+#include "smsc95xx.h"
+
+#define SMSC_CHIPNAME "smsc95xx"
+#define SMSC_DRIVER_VERSION "1.0.4"
+#define HS_USB_PKT_SIZE (512)
+#define FS_USB_PKT_SIZE (64)
+#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
+#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
+#define DEFAULT_BULK_IN_DELAY (0x00002000)
+#define MAX_SINGLE_PACKET_SIZE (2048)
+#define LAN95XX_EEPROM_MAGIC (0x9500)
+#define EEPROM_MAC_OFFSET (0x01)
+#define DEFAULT_TX_CSUM_ENABLE (true)
+#define DEFAULT_RX_CSUM_ENABLE (true)
+#define SMSC95XX_INTERNAL_PHY_ID (1)
+#define SMSC95XX_TX_OVERHEAD (8)
+#define SMSC95XX_TX_OVERHEAD_CSUM (12)
+#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \
+ WAKE_MCAST | WAKE_ARP | WAKE_MAGIC)
+
+#define FEATURE_8_WAKEUP_FILTERS (0x01)
+#define FEATURE_PHY_NLP_CROSSOVER (0x02)
+#define FEATURE_REMOTE_WAKEUP (0x04)
+
+#define SUSPEND_SUSPEND0 (0x01)
+#define SUSPEND_SUSPEND1 (0x02)
+#define SUSPEND_SUSPEND2 (0x04)
+#define SUSPEND_SUSPEND3 (0x08)
+#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
+ SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
+
+struct smsc95xx_priv {
+ u32 mac_cr;
+ u32 hash_hi;
+ u32 hash_lo;
+ u32 wolopts;
+ spinlock_t mac_cr_lock;
+ u8 features;
+ u8 suspend_flags;
+};
+
+static bool turbo_mode = true;
+module_param(turbo_mode, bool, 0644);
+MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+
+static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ u32 *data, int in_pm)
+{
+ u32 buf;
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_read_cmd;
+ else
+ fn = usbnet_read_cmd_nopm;
+
+ ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN
+ | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, &buf, 4);
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",
+ index, ret);
+
+ le32_to_cpus(&buf);
+ *data = buf;
+
+ return ret;
+}
+
+static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index,
+ u32 data, int in_pm)
+{
+ u32 buf;
+ int ret;
+ int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
+
+ BUG_ON(!dev);
+
+ if (!in_pm)
+ fn = usbnet_write_cmd;
+ else
+ fn = usbnet_write_cmd_nopm;
+
+ buf = data;
+ cpu_to_le32s(&buf);
+
+ ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT
+ | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, index, &buf, 4);
+ if (unlikely(ret < 0))
+ netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static int __must_check smsc95xx_read_reg_nopm(struct usbnet *dev, u32 index,
+ u32 *data)
+{
+ return __smsc95xx_read_reg(dev, index, data, 1);
+}
+
+static int __must_check smsc95xx_write_reg_nopm(struct usbnet *dev, u32 index,
+ u32 data)
+{
+ return __smsc95xx_write_reg(dev, index, data, 1);
+}
+
+static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ u32 *data)
+{
+ return __smsc95xx_read_reg(dev, index, data, 0);
+}
+
+static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index,
+ u32 data)
+{
+ return __smsc95xx_write_reg(dev, index, data, 0);
+}
+
+/* Loop until the read is completed with timeout
+ * called with phy_mutex held */
+static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev,
+ int in_pm)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = __smsc95xx_read_reg(dev, MII_ADDR, &val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_ACCESS\n");
+ return ret;
+ }
+
+ if (!(val & MII_BUSY_))
+ return 0;
+ } while (!time_after(jiffies, start_time + HZ));
+
+ return -EIO;
+}
+
+static int __smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx,
+ int in_pm)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_read\n");
+ goto done;
+ }
+
+ /* set the address, index & direction (read from PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = (phy_id << 11) | (idx << 6) | MII_READ_ | MII_BUSY_;
+ ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_ADDR\n");
+ goto done;
+ }
+
+ ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx);
+ goto done;
+ }
+
+ ret = __smsc95xx_read_reg(dev, MII_DATA, &val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading MII_DATA\n");
+ goto done;
+ }
+
+ ret = (u16)(val & 0xFFFF);
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static void __smsc95xx_mdio_write(struct net_device *netdev, int phy_id,
+ int idx, int regval, int in_pm)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_write\n");
+ goto done;
+ }
+
+ val = regval;
+ ret = __smsc95xx_write_reg(dev, MII_DATA, val, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_DATA\n");
+ goto done;
+ }
+
+ /* set the address, index & direction (write to PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = (phy_id << 11) | (idx << 6) | MII_WRITE_ | MII_BUSY_;
+ ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing MII_ADDR\n");
+ goto done;
+ }
+
+ ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx);
+ goto done;
+ }
+
+done:
+ mutex_unlock(&dev->phy_mutex);
+}
+
+static int smsc95xx_mdio_read_nopm(struct net_device *netdev, int phy_id,
+ int idx)
+{
+ return __smsc95xx_mdio_read(netdev, phy_id, idx, 1);
+}
+
+static void smsc95xx_mdio_write_nopm(struct net_device *netdev, int phy_id,
+ int idx, int regval)
+{
+ __smsc95xx_mdio_write(netdev, phy_id, idx, regval, 1);
+}
+
+static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
+{
+ return __smsc95xx_mdio_read(netdev, phy_id, idx, 0);
+}
+
+static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
+ int regval)
+{
+ __smsc95xx_mdio_write(netdev, phy_id, idx, regval, 0);
+}
+
+static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_CMD\n");
+ return ret;
+ }
+
+ if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
+ break;
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
+ netdev_warn(dev->net, "EEPROM read operation timeout\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int __must_check smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+ int ret;
+
+ do {
+ ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_CMD\n");
+ return ret;
+ }
+
+ if (!(val & E2P_CMD_BUSY_))
+ return 0;
+
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ netdev_warn(dev->net, "EEPROM is busy\n");
+ return -EIO;
+}
+
+static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc95xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+ val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
+ ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_CMD\n");
+ return ret;
+ }
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, E2P_DATA, &val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error reading E2P_DATA\n");
+ return ret;
+ }
+
+ data[i] = val & 0xFF;
+ offset++;
+ }
+
+ return 0;
+}
+
+static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc95xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ /* Issue write/erase enable command */
+ val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
+ ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_DATA\n");
+ return ret;
+ }
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+
+ /* Fill data register */
+ val = data[i];
+ ret = smsc95xx_write_reg(dev, E2P_DATA, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_DATA\n");
+ return ret;
+ }
+
+ /* Send "write" command */
+ val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
+ ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Error writing E2P_CMD\n");
+ return ret;
+ }
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ offset++;
+ }
+
+ return 0;
+}
+
+static int __must_check smsc95xx_write_reg_async(struct usbnet *dev, u16 index,
+ u32 data)
+{
+ const u16 size = 4;
+ u32 buf;
+ int ret;
+
+ buf = data;
+ cpu_to_le32s(&buf);
+
+ ret = usbnet_write_cmd_async(dev, USB_VENDOR_REQUEST_WRITE_REGISTER,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE,
+ 0, index, &buf, size);
+ if (ret < 0)
+ netdev_warn(dev->net, "Error write async cmd, sts=%d\n",
+ ret);
+ return ret;
+}
+
+/* returns hash bit number for given MAC address
+ * example:
+ * 01 00 5E 00 00 01 -> returns bit number 31 */
+static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
+{
+ return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
+}
+
+static void smsc95xx_set_multicast(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int ret;
+
+ pdata->hash_hi = 0;
+ pdata->hash_lo = 0;
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+
+ if (dev->net->flags & IFF_PROMISC) {
+ netif_dbg(dev, drv, dev->net, "promiscuous mode enabled\n");
+ pdata->mac_cr |= MAC_CR_PRMS_;
+ pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+ } else if (dev->net->flags & IFF_ALLMULTI) {
+ netif_dbg(dev, drv, dev->net, "receive all multicast enabled\n");
+ pdata->mac_cr |= MAC_CR_MCPAS_;
+ pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
+ } else if (!netdev_mc_empty(dev->net)) {
+ struct netdev_hw_addr *ha;
+
+ pdata->mac_cr |= MAC_CR_HPFILT_;
+ pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
+
+ netdev_for_each_mc_addr(ha, netdev) {
+ u32 bitnum = smsc95xx_hash(ha->addr);
+ u32 mask = 0x01 << (bitnum & 0x1F);
+ if (bitnum & 0x20)
+ pdata->hash_hi |= mask;
+ else
+ pdata->hash_lo |= mask;
+ }
+
+ netif_dbg(dev, drv, dev->net, "HASHH=0x%08X, HASHL=0x%08X\n",
+ pdata->hash_hi, pdata->hash_lo);
+ } else {
+ netif_dbg(dev, drv, dev->net, "receive own packets only\n");
+ pdata->mac_cr &=
+ ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+ }
+
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ /* Initiate async writes, as we can't wait for completion here */
+ ret = smsc95xx_write_reg_async(dev, HASHH, pdata->hash_hi);
+ if (ret < 0)
+ netdev_warn(dev->net, "failed to initiate async write to HASHH\n");
+
+ ret = smsc95xx_write_reg_async(dev, HASHL, pdata->hash_lo);
+ if (ret < 0)
+ netdev_warn(dev->net, "failed to initiate async write to HASHL\n");
+
+ ret = smsc95xx_write_reg_async(dev, MAC_CR, pdata->mac_cr);
+ if (ret < 0)
+ netdev_warn(dev->net, "failed to initiate async write to MAC_CR\n");
+}
+
+static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
+ u16 lcladv, u16 rmtadv)
+{
+ u32 flow, afc_cfg = 0;
+
+ int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
+ if (ret < 0)
+ return ret;
+
+ if (duplex == DUPLEX_FULL) {
+ u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+
+ if (cap & FLOW_CTRL_RX)
+ flow = 0xFFFF0002;
+ else
+ flow = 0;
+
+ if (cap & FLOW_CTRL_TX)
+ afc_cfg |= 0xF;
+ else
+ afc_cfg &= ~0xF;
+
+ netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
+ cap & FLOW_CTRL_RX ? "enabled" : "disabled",
+ cap & FLOW_CTRL_TX ? "enabled" : "disabled");
+ } else {
+ netif_dbg(dev, link, dev->net, "half duplex\n");
+ flow = 0;
+ afc_cfg |= 0xF;
+ }
+
+ ret = smsc95xx_write_reg(dev, FLOW, flow);
+ if (ret < 0)
+ return ret;
+
+ return smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
+}
+
+static int smsc95xx_link_reset(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ struct mii_if_info *mii = &dev->mii;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ unsigned long flags;
+ u16 lcladv, rmtadv;
+ int ret;
+
+ /* clear interrupt status */
+ ret = smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
+ if (ret < 0)
+ return ret;
+
+ mii_check_media(mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
+ rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
+
+ netif_dbg(dev, link, dev->net,
+ "speed: %u duplex: %d lcladv: %04x rmtadv: %04x\n",
+ ethtool_cmd_speed(&ecmd), ecmd.duplex, lcladv, rmtadv);
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ if (ecmd.duplex != DUPLEX_FULL) {
+ pdata->mac_cr &= ~MAC_CR_FDPX_;
+ pdata->mac_cr |= MAC_CR_RCVOWN_;
+ } else {
+ pdata->mac_cr &= ~MAC_CR_RCVOWN_;
+ pdata->mac_cr |= MAC_CR_FDPX_;
+ }
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+ if (ret < 0)
+ netdev_warn(dev->net, "Error updating PHY flow control\n");
+
+ return ret;
+}
+
+static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
+{
+ u32 intdata;
+
+ if (urb->actual_length != 4) {
+ netdev_warn(dev->net, "unexpected urb length %d\n",
+ urb->actual_length);
+ return;
+ }
+
+ memcpy(&intdata, urb->transfer_buffer, 4);
+ le32_to_cpus(&intdata);
+
+ netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata);
+
+ if (intdata & INT_ENP_PHY_INT_)
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ else
+ netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n",
+ intdata);
+}
+
+/* Enable or disable Tx & Rx checksum offload engines */
+static int smsc95xx_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 read_buf;
+ int ret;
+
+ ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ if (features & NETIF_F_HW_CSUM)
+ read_buf |= Tx_COE_EN_;
+ else
+ read_buf &= ~Tx_COE_EN_;
+
+ if (features & NETIF_F_RXCSUM)
+ read_buf |= Rx_COE_EN_;
+ else
+ read_buf &= ~Rx_COE_EN_;
+
+ ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, hw, dev->net, "COE_CR = 0x%08x\n", read_buf);
+ return 0;
+}
+
+static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
+{
+ return MAX_EEPROM_SIZE;
+}
+
+static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ ee->magic = LAN95XX_EEPROM_MAGIC;
+
+ return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (ee->magic != LAN95XX_EEPROM_MAGIC) {
+ netdev_warn(dev->net, "EEPROM: magic value mismatch, magic = 0x%x\n",
+ ee->magic);
+ return -EINVAL;
+ }
+
+ return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int smsc95xx_ethtool_getregslen(struct net_device *netdev)
+{
+ /* all smsc95xx registers */
+ return COE_CR - ID_REV + sizeof(u32);
+}
+
+static void
+smsc95xx_ethtool_getregs(struct net_device *netdev, struct ethtool_regs *regs,
+ void *buf)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ unsigned int i, j;
+ int retval;
+ u32 *data = buf;
+
+ retval = smsc95xx_read_reg(dev, ID_REV, ®s->version);
+ if (retval < 0) {
+ netdev_warn(netdev, "REGS: cannot read ID_REV\n");
+ return;
+ }
+
+ for (i = ID_REV, j = 0; i <= COE_CR; i += (sizeof(u32)), j++) {
+ retval = smsc95xx_read_reg(dev, i, &data[j]);
+ if (retval < 0) {
+ netdev_warn(netdev, "REGS: cannot read reg[%x]\n", i);
+ return;
+ }
+ }
+}
+
+static void smsc95xx_ethtool_get_wol(struct net_device *net,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+ wolinfo->supported = SUPPORTED_WAKE;
+ wolinfo->wolopts = pdata->wolopts;
+}
+
+static int smsc95xx_ethtool_set_wol(struct net_device *net,
+ struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ int ret;
+
+ pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE;
+
+ ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts);
+ if (ret < 0)
+ netdev_warn(dev->net, "device_set_wakeup_enable error %d\n", ret);
+
+ return ret;
+}
+
+static const struct ethtool_ops smsc95xx_ethtool_ops = {
+ .get_link = usbnet_get_link,
+ .nway_reset = usbnet_nway_reset,
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
+ .get_eeprom = smsc95xx_ethtool_get_eeprom,
+ .set_eeprom = smsc95xx_ethtool_set_eeprom,
+ .get_regs_len = smsc95xx_ethtool_getregslen,
+ .get_regs = smsc95xx_ethtool_getregs,
+ .get_wol = smsc95xx_ethtool_get_wol,
+ .set_wol = smsc95xx_ethtool_set_wol,
+};
+
+static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EINVAL;
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static void smsc95xx_init_mac_address(struct usbnet *dev)
+{
+ /* try reading mac address from EEPROM */
+ if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+ dev->net->dev_addr) == 0) {
+ if (is_valid_ether_addr(dev->net->dev_addr)) {
+ /* eeprom values are valid so use them */
+ netif_dbg(dev, ifup, dev->net, "MAC address read from EEPROM\n");
+ return;
+ }
+ }
+
+ /* no eeprom, or eeprom values are invalid. generate random MAC */
+ eth_hw_addr_random(dev->net);
+ netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
+}
+
+static int smsc95xx_set_mac_address(struct usbnet *dev)
+{
+ u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
+ dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
+ u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
+ int ret;
+
+ ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
+ if (ret < 0)
+ return ret;
+
+ return smsc95xx_write_reg(dev, ADDRH, addr_hi);
+}
+
+/* starts the TX path */
+static int smsc95xx_start_tx_path(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ int ret;
+
+ /* Enable Tx at MAC */
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ pdata->mac_cr |= MAC_CR_TXEN_;
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+ if (ret < 0)
+ return ret;
+
+ /* Enable Tx at SCSRs */
+ return smsc95xx_write_reg(dev, TX_CFG, TX_CFG_ON_);
+}
+
+/* Starts the Receive path */
+static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ pdata->mac_cr |= MAC_CR_RXEN_;
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ return __smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr, in_pm);
+}
+
+static int smsc95xx_phy_initialize(struct usbnet *dev)
+{
+ int bmcr, ret, timeout = 0;
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = smsc95xx_mdio_read;
+ dev->mii.mdio_write = smsc95xx_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = SMSC95XX_INTERNAL_PHY_ID;
+
+ /* reset phy and wait for reset to complete */
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+
+ do {
+ msleep(10);
+ bmcr = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR);
+ timeout++;
+ } while ((bmcr & BMCR_RESET) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout on PHY Reset");
+ return -EIO;
+ }
+
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_PAUSE_ASYM);
+
+ /* read to clear */
+ ret = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to read PHY_INT_SRC during init\n");
+ return ret;
+ }
+
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
+ PHY_INT_MASK_DEFAULT_);
+ mii_nway_restart(&dev->mii);
+
+ netif_dbg(dev, ifup, dev->net, "phy initialised successfully\n");
+ return 0;
+}
+
+static int smsc95xx_reset(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 read_buf, write_buf, burst_cap;
+ int ret = 0, timeout;
+
+ netif_dbg(dev, ifup, dev->net, "entering smsc95xx_reset\n");
+
+ ret = smsc95xx_write_reg(dev, HW_CFG, HW_CFG_LRST_);
+ if (ret < 0)
+ return ret;
+
+ timeout = 0;
+ do {
+ msleep(10);
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0)
+ return ret;
+ timeout++;
+ } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout waiting for completion of Lite Reset\n");
+ return ret;
+ }
+
+ ret = smsc95xx_write_reg(dev, PM_CTRL, PM_CTL_PHY_RST_);
+ if (ret < 0)
+ return ret;
+
+ timeout = 0;
+ do {
+ msleep(10);
+ ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
+ if (ret < 0)
+ return ret;
+ timeout++;
+ } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
+
+ if (timeout >= 100) {
+ netdev_warn(dev->net, "timeout waiting for PHY Reset\n");
+ return ret;
+ }
+
+ ret = smsc95xx_set_mac_address(dev);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n",
+ dev->net->dev_addr);
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n",
+ read_buf);
+
+ read_buf |= HW_CFG_BIR_;
+
+ ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from HW_CFG after writing HW_CFG_BIR_: 0x%08x\n",
+ read_buf);
+
+ if (!turbo_mode) {
+ burst_cap = 0;
+ dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
+ } else if (dev->udev->speed == USB_SPEED_HIGH) {
+ burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
+ } else {
+ burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",
+ (ulong)dev->rx_urb_size);
+
+ ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from BURST_CAP after writing: 0x%08x\n",
+ read_buf);
+
+ ret = smsc95xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from BULK_IN_DLY after writing: 0x%08x\n",
+ read_buf);
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG: 0x%08x\n",
+ read_buf);
+
+ if (turbo_mode)
+ read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
+
+ read_buf &= ~HW_CFG_RXDOFF_;
+
+ /* set Rx data offset=2, Make IP header aligns on word boundary. */
+ read_buf |= NET_IP_ALIGN << 9;
+
+ ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ netif_dbg(dev, ifup, dev->net,
+ "Read Value from HW_CFG after writing: 0x%08x\n", read_buf);
+
+ ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
+ if (ret < 0)
+ return ret;
+ netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", read_buf);
+
+ /* Configure GPIO pins as LED outputs */
+ write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
+ LED_GPIO_CFG_FDX_LED;
+ ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
+ if (ret < 0)
+ return ret;
+
+ /* Init Tx */
+ ret = smsc95xx_write_reg(dev, FLOW, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_write_reg(dev, AFC_CFG, AFC_CFG_DEFAULT);
+ if (ret < 0)
+ return ret;
+
+ /* Don't need mac_cr_lock during initialisation */
+ ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
+ if (ret < 0)
+ return ret;
+
+ /* Init Rx */
+ /* Set Vlan */
+ ret = smsc95xx_write_reg(dev, VLAN1, (u32)ETH_P_8021Q);
+ if (ret < 0)
+ return ret;
+
+ /* Enable or disable checksum offload engines */
+ ret = smsc95xx_set_features(dev->net, dev->net->features);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to set checksum offload features\n");
+ return ret;
+ }
+
+ smsc95xx_set_multicast(dev->net);
+
+ ret = smsc95xx_phy_initialize(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to init PHY\n");
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
+ if (ret < 0)
+ return ret;
+
+ /* enable PHY interrupts */
+ read_buf |= INT_EP_CTL_PHY_INT_;
+
+ ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_start_tx_path(dev);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to start TX path\n");
+ return ret;
+ }
+
+ ret = smsc95xx_start_rx_path(dev, 0);
+ if (ret < 0) {
+ netdev_warn(dev->net, "Failed to start RX path\n");
+ return ret;
+ }
+
+ netif_dbg(dev, ifup, dev->net, "smsc95xx_reset, return 0\n");
+ return 0;
+}
+
+static const struct net_device_ops smsc95xx_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = smsc95xx_ioctl,
+ .ndo_set_rx_mode = smsc95xx_set_multicast,
+ .ndo_set_features = smsc95xx_set_features,
+};
+
+static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc95xx_priv *pdata = NULL;
+ u32 val;
+ int ret;
+
+ printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret < 0) {
+ netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret);
+ return ret;
+ }
+
+ dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
+ GFP_KERNEL);
+
+ pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ if (!pdata)
+ return -ENOMEM;
+
+ spin_lock_init(&pdata->mac_cr_lock);
+
+ if (DEFAULT_TX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_HW_CSUM;
+ if (DEFAULT_RX_CSUM_ENABLE)
+ dev->net->features |= NETIF_F_RXCSUM;
+
+ dev->net->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM;
+
+ smsc95xx_init_mac_address(dev);
+
+ /* Init all registers */
+ ret = smsc95xx_reset(dev);
+
+ /* detect device revision as different features may be available */
+ ret = smsc95xx_read_reg(dev, ID_REV, &val);
+ if (ret < 0)
+ return ret;
+ val >>= 16;
+
+ if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
+ (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
+ pdata->features = (FEATURE_8_WAKEUP_FILTERS |
+ FEATURE_PHY_NLP_CROSSOVER |
+ FEATURE_REMOTE_WAKEUP);
+ else if (val == ID_REV_CHIP_ID_9512_)
+ pdata->features = FEATURE_8_WAKEUP_FILTERS;
+
+ dev->net->netdev_ops = &smsc95xx_netdev_ops;
+ dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
+ dev->net->flags |= IFF_MULTICAST;
+ dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+ return 0;
+}
+
+static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ if (pdata) {
+ netif_dbg(dev, ifdown, dev->net, "free pdata\n");
+ kfree(pdata);
+ pdata = NULL;
+ dev->data[0] = 0;
+ }
+}
+
+static u32 smsc_crc(const u8 *buffer, size_t len, int filter)
+{
+ u32 crc = bitrev16(crc16(0xFFFF, buffer, len));
+ return crc << ((filter % 2) * 16);
+}
+
+static int smsc95xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask)
+{
+ struct mii_if_info *mii = &dev->mii;
+ int ret;
+
+ netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n");
+
+ /* read to clear */
+ ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_SRC);
+ if (ret < 0)
+ return ret;
+
+ /* enable interrupt source */
+ ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret |= mask;
+
+ smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_INT_MASK, ret);
+
+ return 0;
+}
+
+static int smsc95xx_link_ok_nopm(struct usbnet *dev)
+{
+ struct mii_if_info *mii = &dev->mii;
+ int ret;
+
+ /* first, a dummy read, needed to latch some MII phys */
+ ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR);
+ if (ret < 0)
+ return ret;
+
+ ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR);
+ if (ret < 0)
+ return ret;
+
+ return !!(ret & BMSR_LSTATUS);
+}
+
+static int smsc95xx_enter_suspend0(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_));
+ val |= PM_CTL_SUS_MODE_0;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ /* clear wol status */
+ val &= ~PM_CTL_WUPS_;
+ val |= PM_CTL_WUPS_WOL_;
+
+ /* enable energy detection */
+ if (pdata->wolopts & WAKE_PHY)
+ val |= PM_CTL_WUPS_ED_;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ /* read back PM_CTRL */
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND0;
+
+ return 0;
+}
+
+static int smsc95xx_enter_suspend1(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ struct mii_if_info *mii = &dev->mii;
+ u32 val;
+ int ret;
+
+ /* reconfigure link pulse detection timing for
+ * compatibility with non-standard link partners
+ */
+ if (pdata->features & FEATURE_PHY_NLP_CROSSOVER)
+ smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_EDPD_CONFIG,
+ PHY_EDPD_CONFIG_DEFAULT);
+
+ /* enable energy detect power-down mode */
+ ret = smsc95xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_MODE_CTRL_STS);
+ if (ret < 0)
+ return ret;
+
+ ret |= MODE_CTRL_STS_EDPWRDOWN_;
+
+ smsc95xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_MODE_CTRL_STS, ret);
+
+ /* enter SUSPEND1 mode */
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
+ val |= PM_CTL_SUS_MODE_1;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ /* clear wol status, enable energy detection */
+ val &= ~PM_CTL_WUPS_;
+ val |= (PM_CTL_WUPS_ED_ | PM_CTL_ED_EN_);
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND1;
+
+ return 0;
+}
+
+static int smsc95xx_enter_suspend2(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
+ val |= PM_CTL_SUS_MODE_2;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND2;
+
+ return 0;
+}
+
+static int smsc95xx_enter_suspend3(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 val;
+ int ret;
+
+ ret = smsc95xx_read_reg_nopm(dev, RX_FIFO_INF, &val);
+ if (ret < 0)
+ return ret;
+
+ if (val & 0xFFFF) {
+ netdev_info(dev->net, "rx fifo not empty in autosuspend\n");
+ return -EBUSY;
+ }
+
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
+ val |= PM_CTL_SUS_MODE_3 | PM_CTL_RES_CLR_WKP_STS;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ /* clear wol status */
+ val &= ~PM_CTL_WUPS_;
+ val |= PM_CTL_WUPS_WOL_;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+
+ pdata->suspend_flags |= SUSPEND_SUSPEND3;
+
+ return 0;
+}
+
+static int smsc95xx_autosuspend(struct usbnet *dev, u32 link_up)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ int ret;
+
+ if (!netif_running(dev->net)) {
+ /* interface is ifconfig down so fully power down hw */
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n");
+ return smsc95xx_enter_suspend2(dev);
+ }
+
+ if (!link_up) {
+ /* link is down so enter EDPD mode, but only if device can
+ * reliably resume from it. This check should be redundant
+ * as current FEATURE_REMOTE_WAKEUP parts also support
+ * FEATURE_PHY_NLP_CROSSOVER but it's included for clarity */
+ if (!(pdata->features & FEATURE_PHY_NLP_CROSSOVER)) {
+ netdev_warn(dev->net, "EDPD not supported\n");
+ return -EBUSY;
+ }
+
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n");
+
+ /* enable PHY wakeup events for if cable is attached */
+ ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
+ PHY_INT_MASK_ANEG_COMP_);
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ return ret;
+ }
+
+ netdev_info(dev->net, "entering SUSPEND1 mode\n");
+ return smsc95xx_enter_suspend1(dev);
+ }
+
+ /* enable PHY wakeup events so we remote wakeup if cable is pulled */
+ ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
+ PHY_INT_MASK_LINK_DOWN_);
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ return ret;
+ }
+
+ netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n");
+ return smsc95xx_enter_suspend3(dev);
+}
+
+static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 val, link_up;
+ int ret;
+
+ ret = usbnet_suspend(intf, message);
+ if (ret < 0) {
+ netdev_warn(dev->net, "usbnet_suspend error\n");
+ return ret;
+ }
+
+ if (pdata->suspend_flags) {
+ netdev_warn(dev->net, "error during last resume\n");
+ pdata->suspend_flags = 0;
+ }
+
+ /* determine if link is up using only _nopm functions */
+ link_up = smsc95xx_link_ok_nopm(dev);
+
+ if (message.event == PM_EVENT_AUTO_SUSPEND &&
+ (pdata->features & FEATURE_REMOTE_WAKEUP)) {
+ ret = smsc95xx_autosuspend(dev, link_up);
+ goto done;
+ }
+
+ /* if we get this far we're not autosuspending */
+ /* if no wol options set, or if link is down and we're not waking on
+ * PHY activity, enter lowest power SUSPEND2 mode
+ */
+ if (!(pdata->wolopts & SUPPORTED_WAKE) ||
+ !(link_up || (pdata->wolopts & WAKE_PHY))) {
+ netdev_info(dev->net, "entering SUSPEND2 mode\n");
+
+ /* disable energy detect (link up) & wake up events */
+ ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0)
+ goto done;
+
+ val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_);
+
+ ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0)
+ goto done;
+
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ goto done;
+
+ val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_);
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ goto done;
+
+ ret = smsc95xx_enter_suspend2(dev);
+ goto done;
+ }
+
+ if (pdata->wolopts & WAKE_PHY) {
+ ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
+ (PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_LINK_DOWN_));
+ if (ret < 0) {
+ netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
+ goto done;
+ }
+
+ /* if link is down then configure EDPD and enter SUSPEND1,
+ * otherwise enter SUSPEND0 below
+ */
+ if (!link_up) {
+ netdev_info(dev->net, "entering SUSPEND1 mode\n");
+ ret = smsc95xx_enter_suspend1(dev);
+ goto done;
+ }
+ }
+
+ if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) {
+ u32 *filter_mask = kzalloc(sizeof(u32) * 32, GFP_KERNEL);
+ u32 command[2];
+ u32 offset[2];
+ u32 crc[4];
+ int wuff_filter_count =
+ (pdata->features & FEATURE_8_WAKEUP_FILTERS) ?
+ LAN9500A_WUFF_NUM : LAN9500_WUFF_NUM;
+ int i, filter = 0;
+
+ if (!filter_mask) {
+ netdev_warn(dev->net, "Unable to allocate filter_mask\n");
+ ret = -ENOMEM;
+ goto done;
+ }
+
+ memset(command, 0, sizeof(command));
+ memset(offset, 0, sizeof(offset));
+ memset(crc, 0, sizeof(crc));
+
+ if (pdata->wolopts & WAKE_BCAST) {
+ const u8 bcast[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+ netdev_info(dev->net, "enabling broadcast detection\n");
+ filter_mask[filter * 4] = 0x003F;
+ filter_mask[filter * 4 + 1] = 0x00;
+ filter_mask[filter * 4 + 2] = 0x00;
+ filter_mask[filter * 4 + 3] = 0x00;
+ command[filter/4] |= 0x05UL << ((filter % 4) * 8);
+ offset[filter/4] |= 0x00 << ((filter % 4) * 8);
+ crc[filter/2] |= smsc_crc(bcast, 6, filter);
+ filter++;
+ }
+
+ if (pdata->wolopts & WAKE_MCAST) {
+ const u8 mcast[] = {0x01, 0x00, 0x5E};
+ netdev_info(dev->net, "enabling multicast detection\n");
+ filter_mask[filter * 4] = 0x0007;
+ filter_mask[filter * 4 + 1] = 0x00;
+ filter_mask[filter * 4 + 2] = 0x00;
+ filter_mask[filter * 4 + 3] = 0x00;
+ command[filter/4] |= 0x09UL << ((filter % 4) * 8);
+ offset[filter/4] |= 0x00 << ((filter % 4) * 8);
+ crc[filter/2] |= smsc_crc(mcast, 3, filter);
+ filter++;
+ }
+
+ if (pdata->wolopts & WAKE_ARP) {
+ const u8 arp[] = {0x08, 0x06};
+ netdev_info(dev->net, "enabling ARP detection\n");
+ filter_mask[filter * 4] = 0x0003;
+ filter_mask[filter * 4 + 1] = 0x00;
+ filter_mask[filter * 4 + 2] = 0x00;
+ filter_mask[filter * 4 + 3] = 0x00;
+ command[filter/4] |= 0x05UL << ((filter % 4) * 8);
+ offset[filter/4] |= 0x0C << ((filter % 4) * 8);
+ crc[filter/2] |= smsc_crc(arp, 2, filter);
+ filter++;
+ }
+
+ if (pdata->wolopts & WAKE_UCAST) {
+ netdev_info(dev->net, "enabling unicast detection\n");
+ filter_mask[filter * 4] = 0x003F;
+ filter_mask[filter * 4 + 1] = 0x00;
+ filter_mask[filter * 4 + 2] = 0x00;
+ filter_mask[filter * 4 + 3] = 0x00;
+ command[filter/4] |= 0x01UL << ((filter % 4) * 8);
+ offset[filter/4] |= 0x00 << ((filter % 4) * 8);
+ crc[filter/2] |= smsc_crc(dev->net->dev_addr, ETH_ALEN, filter);
+ filter++;
+ }
+
+ for (i = 0; i < (wuff_filter_count * 4); i++) {
+ ret = smsc95xx_write_reg_nopm(dev, WUFF, filter_mask[i]);
+ if (ret < 0) {
+ kfree(filter_mask);
+ goto done;
+ }
+ }
+ kfree(filter_mask);
+
+ for (i = 0; i < (wuff_filter_count / 4); i++) {
+ ret = smsc95xx_write_reg_nopm(dev, WUFF, command[i]);
+ if (ret < 0)
+ goto done;
+ }
+
+ for (i = 0; i < (wuff_filter_count / 4); i++) {
+ ret = smsc95xx_write_reg_nopm(dev, WUFF, offset[i]);
+ if (ret < 0)
+ goto done;
+ }
+
+ for (i = 0; i < (wuff_filter_count / 2); i++) {
+ ret = smsc95xx_write_reg_nopm(dev, WUFF, crc[i]);
+ if (ret < 0)
+ goto done;
+ }
+
+ /* clear any pending pattern match packet status */
+ ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0)
+ goto done;
+
+ val |= WUCSR_WUFR_;
+
+ ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0)
+ goto done;
+ }
+
+ if (pdata->wolopts & WAKE_MAGIC) {
+ /* clear any pending magic packet status */
+ ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0)
+ goto done;
+
+ val |= WUCSR_MPR_;
+
+ ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0)
+ goto done;
+ }
+
+ /* enable/disable wakeup sources */
+ ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0)
+ goto done;
+
+ if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) {
+ netdev_info(dev->net, "enabling pattern match wakeup\n");
+ val |= WUCSR_WAKE_EN_;
+ } else {
+ netdev_info(dev->net, "disabling pattern match wakeup\n");
+ val &= ~WUCSR_WAKE_EN_;
+ }
+
+ if (pdata->wolopts & WAKE_MAGIC) {
+ netdev_info(dev->net, "enabling magic packet wakeup\n");
+ val |= WUCSR_MPEN_;
+ } else {
+ netdev_info(dev->net, "disabling magic packet wakeup\n");
+ val &= ~WUCSR_MPEN_;
+ }
+
+ ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0)
+ goto done;
+
+ /* enable wol wakeup source */
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ goto done;
+
+ val |= PM_CTL_WOL_EN_;
+
+ /* phy energy detect wakeup source */
+ if (pdata->wolopts & WAKE_PHY)
+ val |= PM_CTL_ED_EN_;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ goto done;
+
+ /* enable receiver to enable frame reception */
+ smsc95xx_start_rx_path(dev, 1);
+
+ /* some wol options are enabled, so enter SUSPEND0 */
+ netdev_info(dev->net, "entering SUSPEND0 mode\n");
+ ret = smsc95xx_enter_suspend0(dev);
+
+done:
+ /*
+ * TODO: resume() might need to handle the suspend failure
+ * in system sleep
+ */
+ if (ret && PMSG_IS_AUTO(message))
+ usbnet_resume(intf);
+ return ret;
+}
+
+static int smsc95xx_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct smsc95xx_priv *pdata;
+ u8 suspend_flags;
+ int ret;
+ u32 val;
+
+ BUG_ON(!dev);
+ pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ suspend_flags = pdata->suspend_flags;
+
+ netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags);
+
+ /* do this first to ensure it's cleared even in error case */
+ pdata->suspend_flags = 0;
+
+ if (suspend_flags & SUSPEND_ALLMODES) {
+ /* clear wake-up sources */
+ ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= ~(WUCSR_WAKE_EN_ | WUCSR_MPEN_);
+
+ ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
+ if (ret < 0)
+ return ret;
+
+ /* clear wake-up status */
+ ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ val &= ~PM_CTL_WOL_EN_;
+ val |= PM_CTL_WUPS_;
+
+ ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = usbnet_resume(intf);
+ if (ret < 0)
+ netdev_warn(dev->net, "usbnet_resume error\n");
+
+ return ret;
+}
+
+static int smsc95xx_reset_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ int ret;
+
+ ret = smsc95xx_reset(dev);
+ if (ret < 0)
+ return ret;
+
+ return smsc95xx_resume(intf);
+}
+
+static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
+{
+ skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb_trim(skb, skb->len - 2);
+}
+
+static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ while (skb->len > 0) {
+ u32 header, align_count;
+ struct sk_buff *ax_skb;
+ unsigned char *packet;
+ u16 size;
+
+ memcpy(&header, skb->data, sizeof(header));
+ le32_to_cpus(&header);
+ skb_pull(skb, 4 + NET_IP_ALIGN);
+ packet = skb->data;
+
+ /* get the packet length */
+ size = (u16)((header & RX_STS_FL_) >> 16);
+ align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
+
+ if (unlikely(header & RX_STS_ES_)) {
+ netif_dbg(dev, rx_err, dev->net,
+ "Error header=0x%08x\n", header);
+ dev->net->stats.rx_errors++;
+ dev->net->stats.rx_dropped++;
+
+ if (header & RX_STS_CRC_) {
+ dev->net->stats.rx_crc_errors++;
+ } else {
+ if (header & (RX_STS_TL_ | RX_STS_RF_))
+ dev->net->stats.rx_frame_errors++;
+
+ if ((header & RX_STS_LE_) &&
+ (!(header & RX_STS_FT_)))
+ dev->net->stats.rx_length_errors++;
+ }
+ } else {
+ /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
+ if (unlikely(size > (ETH_FRAME_LEN + 12))) {
+ netif_dbg(dev, rx_err, dev->net,
+ "size err header=0x%08x\n", header);
+ return 0;
+ }
+
+ /* last frame in this batch */
+ if (skb->len == size) {
+ if (dev->net->features & NETIF_F_RXCSUM)
+ smsc95xx_rx_csum_offload(skb);
+ skb_trim(skb, skb->len - 4); /* remove fcs */
+ skb->truesize = size + sizeof(struct sk_buff);
+
+ return 1;
+ }
+
+ ax_skb = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!ax_skb)) {
+ netdev_warn(dev->net, "Error allocating skb\n");
+ return 0;
+ }
+
+ ax_skb->len = size;
+ ax_skb->data = packet;
+ skb_set_tail_pointer(ax_skb, size);
+
+ if (dev->net->features & NETIF_F_RXCSUM)
+ smsc95xx_rx_csum_offload(ax_skb);
+ skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
+ ax_skb->truesize = size + sizeof(struct sk_buff);
+
+ usbnet_skb_return(dev, ax_skb);
+ }
+
+ skb_pull(skb, size);
+
+ /* padding bytes before the next frame starts */
+ if (skb->len)
+ skb_pull(skb, align_count);
+ }
+
+ return 1;
+}
+
+static u32 smsc95xx_calc_csum_preamble(struct sk_buff *skb)
+{
+ u16 low_16 = (u16)skb_checksum_start_offset(skb);
+ u16 high_16 = low_16 + skb->csum_offset;
+ return (high_16 << 16) | low_16;
+}
+
+static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ bool csum = skb->ip_summed == CHECKSUM_PARTIAL;
+ int overhead = csum ? SMSC95XX_TX_OVERHEAD_CSUM : SMSC95XX_TX_OVERHEAD;
+ u32 tx_cmd_a, tx_cmd_b;
+
+ /* We do not advertise SG, so skbs should be already linearized */
+ BUG_ON(skb_shinfo(skb)->nr_frags);
+
+ if (skb_headroom(skb) < overhead) {
+ struct sk_buff *skb2 = skb_copy_expand(skb,
+ overhead, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ if (csum) {
+ if (skb->len <= 45) {
+ /* workaround - hardware tx checksum does not work
+ * properly with extremely small packets */
+ long csstart = skb_checksum_start_offset(skb);
+ __wsum calc = csum_partial(skb->data + csstart,
+ skb->len - csstart, 0);
+ *((__sum16 *)(skb->data + csstart
+ + skb->csum_offset)) = csum_fold(calc);
+
+ csum = false;
+ } else {
+ u32 csum_preamble = smsc95xx_calc_csum_preamble(skb);
+ skb_push(skb, 4);
+ cpu_to_le32s(&csum_preamble);
+ memcpy(skb->data, &csum_preamble, 4);
+ }
+ }
+
+ skb_push(skb, 4);
+ tx_cmd_b = (u32)(skb->len - 4);
+ if (csum)
+ tx_cmd_b |= TX_CMD_B_CSUM_ENABLE;
+ cpu_to_le32s(&tx_cmd_b);
+ memcpy(skb->data, &tx_cmd_b, 4);
+
+ skb_push(skb, 4);
+ tx_cmd_a = (u32)(skb->len - 8) | TX_CMD_A_FIRST_SEG_ |
+ TX_CMD_A_LAST_SEG_;
+ cpu_to_le32s(&tx_cmd_a);
+ memcpy(skb->data, &tx_cmd_a, 4);
+
+ return skb;
+}
+
+static int smsc95xx_manage_power(struct usbnet *dev, int on)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+ dev->intf->needs_remote_wakeup = on;
+
+ if (pdata->features & FEATURE_REMOTE_WAKEUP)
+ return 0;
+
+ /* this chip revision isn't capable of remote wakeup */
+ netdev_info(dev->net, "hardware isn't capable of remote wakeup\n");
+
+ if (on)
+ usb_autopm_get_interface_no_resume(dev->intf);
+ else
+ usb_autopm_put_interface(dev->intf);
+
+ return 0;
+}
+
+static const struct driver_info smsc95xx_info = {
+ .description = "smsc95xx USB 2.0 Ethernet",
+ .bind = smsc95xx_bind,
+ .unbind = smsc95xx_unbind,
+ .link_reset = smsc95xx_link_reset,
+ .reset = smsc95xx_reset,
+ .rx_fixup = smsc95xx_rx_fixup,
+ .tx_fixup = smsc95xx_tx_fixup,
+ .status = smsc95xx_status,
+ .manage_power = smsc95xx_manage_power,
+ .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ /* SMSC9500 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9500),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9505 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9505),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500A USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9E00),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9505A USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9E01),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9512/9514 USB Hub & Ethernet Device */
+ USB_DEVICE(0x0424, 0xec00),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500 USB Ethernet Device (SAL10) */
+ USB_DEVICE(0x0424, 0x9900),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9505 USB Ethernet Device (SAL10) */
+ USB_DEVICE(0x0424, 0x9901),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500A USB Ethernet Device (SAL10) */
+ USB_DEVICE(0x0424, 0x9902),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9505A USB Ethernet Device (SAL10) */
+ USB_DEVICE(0x0424, 0x9903),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9512/9514 USB Hub & Ethernet Device (SAL10) */
+ USB_DEVICE(0x0424, 0x9904),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500A USB Ethernet Device (HAL) */
+ USB_DEVICE(0x0424, 0x9905),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9505A USB Ethernet Device (HAL) */
+ USB_DEVICE(0x0424, 0x9906),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500 USB Ethernet Device (Alternate ID) */
+ USB_DEVICE(0x0424, 0x9907),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9500A USB Ethernet Device (Alternate ID) */
+ USB_DEVICE(0x0424, 0x9908),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC9512/9514 USB Hub & Ethernet Device (Alternate ID) */
+ USB_DEVICE(0x0424, 0x9909),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC LAN9530 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9530),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC LAN9730 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9730),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ {
+ /* SMSC LAN89530 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9E08),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ { }, /* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver smsc95xx_driver = {
+ .name = "smsc95xx",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = smsc95xx_suspend,
+ .resume = smsc95xx_resume,
+ .reset_resume = smsc95xx_reset_resume,
+ .disconnect = usbnet_disconnect,
+ .disable_hub_initiated_lpm = 1,
+ .supports_autosuspend = 1,
+};
+
+module_usb_driver(smsc95xx_driver);
+
+MODULE_AUTHOR("Nancy Lin");
+MODULE_AUTHOR("Steve Glendinning <steve.glendinning@shawell.net>");
+MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h
new file mode 100644
index 0000000..526faa0
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.h
@@ -0,0 +1,290 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *****************************************************************************/
+
+#ifndef _SMSC95XX_H
+#define _SMSC95XX_H
+
+/* Tx command words */
+#define TX_CMD_A_DATA_OFFSET_ (0x001F0000)
+#define TX_CMD_A_FIRST_SEG_ (0x00002000)
+#define TX_CMD_A_LAST_SEG_ (0x00001000)
+#define TX_CMD_A_BUF_SIZE_ (0x000007FF)
+
+#define TX_CMD_B_CSUM_ENABLE (0x00004000)
+#define TX_CMD_B_ADD_CRC_DISABLE_ (0x00002000)
+#define TX_CMD_B_DISABLE_PADDING_ (0x00001000)
+#define TX_CMD_B_PKT_BYTE_LENGTH_ (0x000007FF)
+
+/* Rx status word */
+#define RX_STS_FF_ (0x40000000) /* Filter Fail */
+#define RX_STS_FL_ (0x3FFF0000) /* Frame Length */
+#define RX_STS_ES_ (0x00008000) /* Error Summary */
+#define RX_STS_BF_ (0x00002000) /* Broadcast Frame */
+#define RX_STS_LE_ (0x00001000) /* Length Error */
+#define RX_STS_RF_ (0x00000800) /* Runt Frame */
+#define RX_STS_MF_ (0x00000400) /* Multicast Frame */
+#define RX_STS_TL_ (0x00000080) /* Frame too long */
+#define RX_STS_CS_ (0x00000040) /* Collision Seen */
+#define RX_STS_FT_ (0x00000020) /* Frame Type */
+#define RX_STS_RW_ (0x00000010) /* Receive Watchdog */
+#define RX_STS_ME_ (0x00000008) /* Mii Error */
+#define RX_STS_DB_ (0x00000004) /* Dribbling */
+#define RX_STS_CRC_ (0x00000002) /* CRC Error */
+
+/* SCSRs */
+#define ID_REV (0x00)
+#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000)
+#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF)
+#define ID_REV_CHIP_ID_9500_ (0x9500)
+#define ID_REV_CHIP_ID_9500A_ (0x9E00)
+#define ID_REV_CHIP_ID_9512_ (0xEC00)
+#define ID_REV_CHIP_ID_9530_ (0x9530)
+#define ID_REV_CHIP_ID_89530_ (0x9E08)
+#define ID_REV_CHIP_ID_9730_ (0x9730)
+
+#define INT_STS (0x08)
+#define INT_STS_TX_STOP_ (0x00020000)
+#define INT_STS_RX_STOP_ (0x00010000)
+#define INT_STS_PHY_INT_ (0x00008000)
+#define INT_STS_TXE_ (0x00004000)
+#define INT_STS_TDFU_ (0x00002000)
+#define INT_STS_TDFO_ (0x00001000)
+#define INT_STS_RXDF_ (0x00000800)
+#define INT_STS_GPIOS_ (0x000007FF)
+#define INT_STS_CLEAR_ALL_ (0xFFFFFFFF)
+
+#define RX_CFG (0x0C)
+#define RX_FIFO_FLUSH_ (0x00000001)
+
+#define TX_CFG (0x10)
+#define TX_CFG_ON_ (0x00000004)
+#define TX_CFG_STOP_ (0x00000002)
+#define TX_CFG_FIFO_FLUSH_ (0x00000001)
+
+#define HW_CFG (0x14)
+#define HW_CFG_BIR_ (0x00001000)
+#define HW_CFG_LEDB_ (0x00000800)
+#define HW_CFG_RXDOFF_ (0x00000600)
+#define HW_CFG_DRP_ (0x00000040)
+#define HW_CFG_MEF_ (0x00000020)
+#define HW_CFG_LRST_ (0x00000008)
+#define HW_CFG_PSEL_ (0x00000004)
+#define HW_CFG_BCE_ (0x00000002)
+#define HW_CFG_SRST_ (0x00000001)
+
+#define RX_FIFO_INF (0x18)
+
+#define PM_CTRL (0x20)
+#define PM_CTL_RES_CLR_WKP_STS (0x00000200)
+#define PM_CTL_DEV_RDY_ (0x00000080)
+#define PM_CTL_SUS_MODE_ (0x00000060)
+#define PM_CTL_SUS_MODE_0 (0x00000000)
+#define PM_CTL_SUS_MODE_1 (0x00000020)
+#define PM_CTL_SUS_MODE_2 (0x00000040)
+#define PM_CTL_SUS_MODE_3 (0x00000060)
+#define PM_CTL_PHY_RST_ (0x00000010)
+#define PM_CTL_WOL_EN_ (0x00000008)
+#define PM_CTL_ED_EN_ (0x00000004)
+#define PM_CTL_WUPS_ (0x00000003)
+#define PM_CTL_WUPS_NO_ (0x00000000)
+#define PM_CTL_WUPS_ED_ (0x00000001)
+#define PM_CTL_WUPS_WOL_ (0x00000002)
+#define PM_CTL_WUPS_MULTI_ (0x00000003)
+
+#define LED_GPIO_CFG (0x24)
+#define LED_GPIO_CFG_SPD_LED (0x01000000)
+#define LED_GPIO_CFG_LNK_LED (0x00100000)
+#define LED_GPIO_CFG_FDX_LED (0x00010000)
+
+#define GPIO_CFG (0x28)
+
+#define AFC_CFG (0x2C)
+
+/* Hi watermark = 15.5Kb (~10 mtu pkts) */
+/* low watermark = 3k (~2 mtu pkts) */
+/* backpressure duration = ~ 350us */
+/* Apply FC on any frame. */
+#define AFC_CFG_DEFAULT (0x00F830A1)
+
+#define E2P_CMD (0x30)
+#define E2P_CMD_BUSY_ (0x80000000)
+#define E2P_CMD_MASK_ (0x70000000)
+#define E2P_CMD_READ_ (0x00000000)
+#define E2P_CMD_EWDS_ (0x10000000)
+#define E2P_CMD_EWEN_ (0x20000000)
+#define E2P_CMD_WRITE_ (0x30000000)
+#define E2P_CMD_WRAL_ (0x40000000)
+#define E2P_CMD_ERASE_ (0x50000000)
+#define E2P_CMD_ERAL_ (0x60000000)
+#define E2P_CMD_RELOAD_ (0x70000000)
+#define E2P_CMD_TIMEOUT_ (0x00000400)
+#define E2P_CMD_LOADED_ (0x00000200)
+#define E2P_CMD_ADDR_ (0x000001FF)
+
+#define MAX_EEPROM_SIZE (512)
+
+#define E2P_DATA (0x34)
+#define E2P_DATA_MASK_ (0x000000FF)
+
+#define BURST_CAP (0x38)
+
+#define GPIO_WAKE (0x64)
+
+#define INT_EP_CTL (0x68)
+#define INT_EP_CTL_INTEP_ (0x80000000)
+#define INT_EP_CTL_MACRTO_ (0x00080000)
+#define INT_EP_CTL_TX_STOP_ (0x00020000)
+#define INT_EP_CTL_RX_STOP_ (0x00010000)
+#define INT_EP_CTL_PHY_INT_ (0x00008000)
+#define INT_EP_CTL_TXE_ (0x00004000)
+#define INT_EP_CTL_TDFU_ (0x00002000)
+#define INT_EP_CTL_TDFO_ (0x00001000)
+#define INT_EP_CTL_RXDF_ (0x00000800)
+#define INT_EP_CTL_GPIOS_ (0x000007FF)
+
+#define BULK_IN_DLY (0x6C)
+
+/* MAC CSRs */
+#define MAC_CR (0x100)
+#define MAC_CR_RXALL_ (0x80000000)
+#define MAC_CR_RCVOWN_ (0x00800000)
+#define MAC_CR_LOOPBK_ (0x00200000)
+#define MAC_CR_FDPX_ (0x00100000)
+#define MAC_CR_MCPAS_ (0x00080000)
+#define MAC_CR_PRMS_ (0x00040000)
+#define MAC_CR_INVFILT_ (0x00020000)
+#define MAC_CR_PASSBAD_ (0x00010000)
+#define MAC_CR_HFILT_ (0x00008000)
+#define MAC_CR_HPFILT_ (0x00002000)
+#define MAC_CR_LCOLL_ (0x00001000)
+#define MAC_CR_BCAST_ (0x00000800)
+#define MAC_CR_DISRTY_ (0x00000400)
+#define MAC_CR_PADSTR_ (0x00000100)
+#define MAC_CR_BOLMT_MASK (0x000000C0)
+#define MAC_CR_DFCHK_ (0x00000020)
+#define MAC_CR_TXEN_ (0x00000008)
+#define MAC_CR_RXEN_ (0x00000004)
+
+#define ADDRH (0x104)
+
+#define ADDRL (0x108)
+
+#define HASHH (0x10C)
+
+#define HASHL (0x110)
+
+#define MII_ADDR (0x114)
+#define MII_WRITE_ (0x02)
+#define MII_BUSY_ (0x01)
+#define MII_READ_ (0x00) /* ~of MII Write bit */
+
+#define MII_DATA (0x118)
+
+#define FLOW (0x11C)
+#define FLOW_FCPT_ (0xFFFF0000)
+#define FLOW_FCPASS_ (0x00000004)
+#define FLOW_FCEN_ (0x00000002)
+#define FLOW_FCBSY_ (0x00000001)
+
+#define VLAN1 (0x120)
+
+#define VLAN2 (0x124)
+
+#define WUFF (0x128)
+#define LAN9500_WUFF_NUM (4)
+#define LAN9500A_WUFF_NUM (8)
+
+#define WUCSR (0x12C)
+#define WUCSR_WFF_PTR_RST_ (0x80000000)
+#define WUCSR_GUE_ (0x00000200)
+#define WUCSR_WUFR_ (0x00000040)
+#define WUCSR_MPR_ (0x00000020)
+#define WUCSR_WAKE_EN_ (0x00000004)
+#define WUCSR_MPEN_ (0x00000002)
+
+#define COE_CR (0x130)
+#define Tx_COE_EN_ (0x00010000)
+#define Rx_COE_MODE_ (0x00000002)
+#define Rx_COE_EN_ (0x00000001)
+
+/* Vendor-specific PHY Definitions */
+
+/* EDPD NLP / crossover time configuration (LAN9500A only) */
+#define PHY_EDPD_CONFIG (16)
+#define PHY_EDPD_CONFIG_TX_NLP_EN_ ((u16)0x8000)
+#define PHY_EDPD_CONFIG_TX_NLP_1000_ ((u16)0x0000)
+#define PHY_EDPD_CONFIG_TX_NLP_768_ ((u16)0x2000)
+#define PHY_EDPD_CONFIG_TX_NLP_512_ ((u16)0x4000)
+#define PHY_EDPD_CONFIG_TX_NLP_256_ ((u16)0x6000)
+#define PHY_EDPD_CONFIG_RX_1_NLP_ ((u16)0x1000)
+#define PHY_EDPD_CONFIG_RX_NLP_64_ ((u16)0x0000)
+#define PHY_EDPD_CONFIG_RX_NLP_256_ ((u16)0x0400)
+#define PHY_EDPD_CONFIG_RX_NLP_512_ ((u16)0x0800)
+#define PHY_EDPD_CONFIG_RX_NLP_1000_ ((u16)0x0C00)
+#define PHY_EDPD_CONFIG_EXT_CROSSOVER_ ((u16)0x0001)
+#define PHY_EDPD_CONFIG_DEFAULT (PHY_EDPD_CONFIG_TX_NLP_EN_ | \
+ PHY_EDPD_CONFIG_TX_NLP_768_ | \
+ PHY_EDPD_CONFIG_RX_1_NLP_)
+
+/* Mode Control/Status Register */
+#define PHY_MODE_CTRL_STS (17)
+#define MODE_CTRL_STS_EDPWRDOWN_ ((u16)0x2000)
+#define MODE_CTRL_STS_ENERGYON_ ((u16)0x0002)
+
+#define SPECIAL_CTRL_STS (27)
+#define SPECIAL_CTRL_STS_OVRRD_AMDIX_ ((u16)0x8000)
+#define SPECIAL_CTRL_STS_AMDIX_ENABLE_ ((u16)0x4000)
+#define SPECIAL_CTRL_STS_AMDIX_STATE_ ((u16)0x2000)
+
+#define PHY_INT_SRC (29)
+#define PHY_INT_SRC_ENERGY_ON_ ((u16)0x0080)
+#define PHY_INT_SRC_ANEG_COMP_ ((u16)0x0040)
+#define PHY_INT_SRC_REMOTE_FAULT_ ((u16)0x0020)
+#define PHY_INT_SRC_LINK_DOWN_ ((u16)0x0010)
+
+#define PHY_INT_MASK (30)
+#define PHY_INT_MASK_ENERGY_ON_ ((u16)0x0080)
+#define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040)
+#define PHY_INT_MASK_REMOTE_FAULT_ ((u16)0x0020)
+#define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010)
+#define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \
+ PHY_INT_MASK_LINK_DOWN_)
+
+#define PHY_SPECIAL (31)
+#define PHY_SPECIAL_SPD_ ((u16)0x001C)
+#define PHY_SPECIAL_SPD_10HALF_ ((u16)0x0004)
+#define PHY_SPECIAL_SPD_10FULL_ ((u16)0x0014)
+#define PHY_SPECIAL_SPD_100HALF_ ((u16)0x0008)
+#define PHY_SPECIAL_SPD_100FULL_ ((u16)0x0018)
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
+#define USB_VENDOR_REQUEST_GET_STATS 0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_TX_STOP_ ((u32)BIT(17))
+#define INT_ENP_RX_STOP_ ((u32)BIT(16))
+#define INT_ENP_PHY_INT_ ((u32)BIT(15))
+#define INT_ENP_TXE_ ((u32)BIT(14))
+#define INT_ENP_TDFU_ ((u32)BIT(13))
+#define INT_ENP_TDFO_ ((u32)BIT(12))
+#define INT_ENP_RXDF_ ((u32)BIT(11))
+
+#endif /* _SMSC95XX_H */
diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
new file mode 100644
index 0000000..4a1e9c4
--- /dev/null
+++ b/drivers/net/usb/sr9700.c
@@ -0,0 +1,559 @@
+/*
+ * CoreChip-sz SR9700 one chip USB 1.1 Ethernet Devices
+ *
+ * Author : Liu Junliang <liujunliang_ljl@163.com>
+ *
+ * Based on dm9601.c
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/stddef.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+
+#include "sr9700.h"
+
+static int sr_read(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ int err;
+
+ err = usbnet_read_cmd(dev, SR_RD_REGS, SR_REQ_RD_REG, 0, reg, data,
+ length);
+ if ((err != length) && (err >= 0))
+ err = -EINVAL;
+ return err;
+}
+
+static int sr_write(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ int err;
+
+ err = usbnet_write_cmd(dev, SR_WR_REGS, SR_REQ_WR_REG, 0, reg, data,
+ length);
+ if ((err >= 0) && (err < length))
+ err = -EINVAL;
+ return err;
+}
+
+static int sr_read_reg(struct usbnet *dev, u8 reg, u8 *value)
+{
+ return sr_read(dev, reg, 1, value);
+}
+
+static int sr_write_reg(struct usbnet *dev, u8 reg, u8 value)
+{
+ return usbnet_write_cmd(dev, SR_WR_REGS, SR_REQ_WR_REG,
+ value, reg, NULL, 0);
+}
+
+static void sr_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
+{
+ usbnet_write_cmd_async(dev, SR_WR_REGS, SR_REQ_WR_REG,
+ 0, reg, data, length);
+}
+
+static void sr_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
+{
+ usbnet_write_cmd_async(dev, SR_WR_REGS, SR_REQ_WR_REG,
+ value, reg, NULL, 0);
+}
+
+static int wait_phy_eeprom_ready(struct usbnet *dev, int phy)
+{
+ int i;
+
+ for (i = 0; i < SR_SHARE_TIMEOUT; i++) {
+ u8 tmp = 0;
+ int ret;
+
+ udelay(1);
+ ret = sr_read_reg(dev, SR_EPCR, &tmp);
+ if (ret < 0)
+ return ret;
+
+ /* ready */
+ if (!(tmp & EPCR_ERRE))
+ return 0;
+ }
+
+ netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
+
+ return -EIO;
+}
+
+static int sr_share_read_word(struct usbnet *dev, int phy, u8 reg,
+ __le16 *value)
+{
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ sr_write_reg(dev, SR_EPAR, phy ? (reg | EPAR_PHY_ADR) : reg);
+ sr_write_reg(dev, SR_EPCR, phy ? (EPCR_EPOS | EPCR_ERPRR) : EPCR_ERPRR);
+
+ ret = wait_phy_eeprom_ready(dev, phy);
+ if (ret < 0)
+ goto out_unlock;
+
+ sr_write_reg(dev, SR_EPCR, 0x0);
+ ret = sr_read(dev, SR_EPDR, 2, value);
+
+ netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
+ phy, reg, *value, ret);
+
+out_unlock:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static int sr_share_write_word(struct usbnet *dev, int phy, u8 reg,
+ __le16 value)
+{
+ int ret;
+
+ mutex_lock(&dev->phy_mutex);
+
+ ret = sr_write(dev, SR_EPDR, 2, &value);
+ if (ret < 0)
+ goto out_unlock;
+
+ sr_write_reg(dev, SR_EPAR, phy ? (reg | EPAR_PHY_ADR) : reg);
+ sr_write_reg(dev, SR_EPCR, phy ? (EPCR_WEP | EPCR_EPOS | EPCR_ERPRW) :
+ (EPCR_WEP | EPCR_ERPRW));
+
+ ret = wait_phy_eeprom_ready(dev, phy);
+ if (ret < 0)
+ goto out_unlock;
+
+ sr_write_reg(dev, SR_EPCR, 0x0);
+
+out_unlock:
+ mutex_unlock(&dev->phy_mutex);
+ return ret;
+}
+
+static int sr_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
+{
+ return sr_share_read_word(dev, 0, offset, value);
+}
+
+static int sr9700_get_eeprom_len(struct net_device *netdev)
+{
+ return SR_EEPROM_LEN;
+}
+
+static int sr9700_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 *buf = (__le16 *)data;
+ int ret = 0;
+ int i;
+
+ /* access is 16bit */
+ if ((eeprom->offset & 0x01) || (eeprom->len & 0x01))
+ return -EINVAL;
+
+ for (i = 0; i < eeprom->len / 2; i++) {
+ ret = sr_read_eeprom_word(dev, eeprom->offset / 2 + i, buf + i);
+ if (ret < 0)
+ break;
+ }
+
+ return ret;
+}
+
+static int sr_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 res;
+ int rc = 0;
+
+ if (phy_id) {
+ netdev_dbg(netdev, "Only internal phy supported\n");
+ return 0;
+ }
+
+ /* Access NSR_LINKST bit for link status instead of MII_BMSR */
+ if (loc == MII_BMSR) {
+ u8 value;
+
+ sr_read_reg(dev, SR_NSR, &value);
+ if (value & NSR_LINKST)
+ rc = 1;
+ }
+ sr_share_read_word(dev, 1, loc, &res);
+ if (rc == 1)
+ res = le16_to_cpu(res) | BMSR_LSTATUS;
+ else
+ res = le16_to_cpu(res) & ~BMSR_LSTATUS;
+
+ netdev_dbg(netdev, "sr_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
+ phy_id, loc, res);
+
+ return res;
+}
+
+static void sr_mdio_write(struct net_device *netdev, int phy_id, int loc,
+ int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ __le16 res = cpu_to_le16(val);
+
+ if (phy_id) {
+ netdev_dbg(netdev, "Only internal phy supported\n");
+ return;
+ }
+
+ netdev_dbg(netdev, "sr_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
+ phy_id, loc, val);
+
+ sr_share_write_word(dev, 1, loc, res);
+}
+
+static u32 sr9700_get_link(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u8 value = 0;
+ int rc = 0;
+
+ /* Get the Link Status directly */
+ sr_read_reg(dev, SR_NSR, &value);
+ if (value & NSR_LINKST)
+ rc = 1;
+
+ return rc;
+}
+
+static int sr9700_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static const struct ethtool_ops sr9700_ethtool_ops = {
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_link = sr9700_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_eeprom_len = sr9700_get_eeprom_len,
+ .get_eeprom = sr9700_get_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static void sr9700_set_multicast(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ /* We use the 20 byte dev->data for our 8 byte filter buffer
+ * to avoid allocating memory that is tricky to free later
+ */
+ u8 *hashes = (u8 *)&dev->data;
+ /* rx_ctl setting : enable, disable_long, disable_crc */
+ u8 rx_ctl = RCR_RXEN | RCR_DIS_CRC | RCR_DIS_LONG;
+
+ memset(hashes, 0x00, SR_MCAST_SIZE);
+ /* broadcast address */
+ hashes[SR_MCAST_SIZE - 1] |= SR_MCAST_ADDR_FLAG;
+ if (netdev->flags & IFF_PROMISC) {
+ rx_ctl |= RCR_PRMSC;
+ } else if (netdev->flags & IFF_ALLMULTI ||
+ netdev_mc_count(netdev) > SR_MCAST_MAX) {
+ rx_ctl |= RCR_RUNT;
+ } else if (!netdev_mc_empty(netdev)) {
+ struct netdev_hw_addr *ha;
+
+ netdev_for_each_mc_addr(ha, netdev) {
+ u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ hashes[crc >> 3] |= 1 << (crc & 0x7);
+ }
+ }
+
+ sr_write_async(dev, SR_MAR, SR_MCAST_SIZE, hashes);
+ sr_write_reg_async(dev, SR_RCR, rx_ctl);
+}
+
+static int sr9700_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data)) {
+ netdev_err(netdev, "not setting invalid mac address %pM\n",
+ addr->sa_data);
+ return -EINVAL;
+ }
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ sr_write_async(dev, SR_PAR, 6, netdev->dev_addr);
+
+ return 0;
+}
+
+static const struct net_device_ops sr9700_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = sr9700_ioctl,
+ .ndo_set_rx_mode = sr9700_set_multicast,
+ .ndo_set_mac_address = sr9700_set_mac_address,
+};
+
+static int sr9700_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct net_device *netdev;
+ struct mii_if_info *mii;
+ int ret;
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret)
+ goto out;
+
+ netdev = dev->net;
+
+ netdev->netdev_ops = &sr9700_netdev_ops;
+ netdev->ethtool_ops = &sr9700_ethtool_ops;
+ netdev->hard_header_len += SR_TX_OVERHEAD;
+ dev->hard_mtu = netdev->mtu + netdev->hard_header_len;
+ /* bulkin buffer is preferably not less than 3K */
+ dev->rx_urb_size = 3072;
+
+ mii = &dev->mii;
+ mii->dev = netdev;
+ mii->mdio_read = sr_mdio_read;
+ mii->mdio_write = sr_mdio_write;
+ mii->phy_id_mask = 0x1f;
+ mii->reg_num_mask = 0x1f;
+
+ sr_write_reg(dev, SR_NCR, NCR_RST);
+ udelay(20);
+
+ /* read MAC
+ * After Chip Power on, the Chip will reload the MAC from
+ * EEPROM automatically to PAR. In case there is no EEPROM externally,
+ * a default MAC address is stored in PAR for making chip work properly.
+ */
+ if (sr_read(dev, SR_PAR, ETH_ALEN, netdev->dev_addr) < 0) {
+ netdev_err(netdev, "Error reading MAC address\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /* power up and reset phy */
+ sr_write_reg(dev, SR_PRR, PRR_PHY_RST);
+ /* at least 10ms, here 20ms for safe */
+ mdelay(20);
+ sr_write_reg(dev, SR_PRR, 0);
+ /* at least 1ms, here 2ms for reading right register */
+ udelay(2 * 1000);
+
+ /* receive broadcast packets */
+ sr9700_set_multicast(netdev);
+
+ sr_mdio_write(netdev, mii->phy_id, MII_BMCR, BMCR_RESET);
+ sr_mdio_write(netdev, mii->phy_id, MII_ADVERTISE, ADVERTISE_ALL |
+ ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
+ mii_nway_restart(mii);
+
+out:
+ return ret;
+}
+
+static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct sk_buff *sr_skb;
+ int len;
+
+ /* skb content (packets) format :
+ * p0 p1 p2 ...... pm
+ * / \
+ * / \
+ * / \
+ * / \
+ * p0b0 p0b1 p0b2 p0b3 ...... p0b(n-4) p0b(n-3)...p0bn
+ *
+ * p0 : packet 0
+ * p0b0 : packet 0 byte 0
+ *
+ * b0: rx status
+ * b1: packet length (incl crc) low
+ * b2: packet length (incl crc) high
+ * b3..n-4: packet data
+ * bn-3..bn: ethernet packet crc
+ */
+ if (unlikely(skb->len < SR_RX_OVERHEAD)) {
+ netdev_err(dev->net, "unexpected tiny rx frame\n");
+ return 0;
+ }
+
+ /* one skb may contains multiple packets */
+ while (skb->len > SR_RX_OVERHEAD) {
+ if (skb->data[0] != 0x40)
+ return 0;
+
+ /* ignore the CRC length */
+ len = (skb->data[1] | (skb->data[2] << 8)) - 4;
+
+ if (len > ETH_FRAME_LEN)
+ return 0;
+
+ /* the last packet of current skb */
+ if (skb->len == (len + SR_RX_OVERHEAD)) {
+ skb_pull(skb, 3);
+ skb->len = len;
+ skb_set_tail_pointer(skb, len);
+ skb->truesize = len + sizeof(struct sk_buff);
+ return 2;
+ }
+
+ /* skb_clone is used for address align */
+ sr_skb = skb_clone(skb, GFP_ATOMIC);
+ if (!sr_skb)
+ return 0;
+
+ sr_skb->len = len;
+ sr_skb->data = skb->data + 3;
+ skb_set_tail_pointer(sr_skb, len);
+ sr_skb->truesize = len + sizeof(struct sk_buff);
+ usbnet_skb_return(dev, sr_skb);
+
+ skb_pull(skb, len + SR_RX_OVERHEAD);
+ };
+
+ return 0;
+}
+
+static struct sk_buff *sr9700_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int len;
+
+ /* SR9700 can only send out one ethernet packet at once.
+ *
+ * b0 b1 b2 b3 ...... b(n-4) b(n-3)...bn
+ *
+ * b0: rx status
+ * b1: packet length (incl crc) low
+ * b2: packet length (incl crc) high
+ * b3..n-4: packet data
+ * bn-3..bn: ethernet packet crc
+ */
+
+ len = skb->len;
+
+ if (skb_headroom(skb) < SR_TX_OVERHEAD) {
+ struct sk_buff *skb2;
+
+ skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ __skb_push(skb, SR_TX_OVERHEAD);
+
+ /* usbnet adds padding if length is a multiple of packet size
+ * if so, adjust length value in header
+ */
+ if ((skb->len % dev->maxpacket) == 0)
+ len++;
+
+ skb->data[0] = len;
+ skb->data[1] = len >> 8;
+
+ return skb;
+}
+
+static void sr9700_status(struct usbnet *dev, struct urb *urb)
+{
+ int link;
+ u8 *buf;
+
+ /* format:
+ b0: net status
+ b1: tx status 1
+ b2: tx status 2
+ b3: rx status
+ b4: rx overflow
+ b5: rx count
+ b6: tx count
+ b7: gpr
+ */
+
+ if (urb->actual_length < 8)
+ return;
+
+ buf = urb->transfer_buffer;
+
+ link = !!(buf[0] & 0x40);
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+}
+
+static int sr9700_link_reset(struct usbnet *dev)
+{
+ struct ethtool_cmd ecmd;
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+
+ netdev_dbg(dev->net, "link_reset() speed: %d duplex: %d\n",
+ ecmd.speed, ecmd.duplex);
+
+ return 0;
+}
+
+static const struct driver_info sr9700_driver_info = {
+ .description = "CoreChip SR9700 USB Ethernet",
+ .flags = FLAG_ETHER,
+ .bind = sr9700_bind,
+ .rx_fixup = sr9700_rx_fixup,
+ .tx_fixup = sr9700_tx_fixup,
+ .status = sr9700_status,
+ .link_reset = sr9700_link_reset,
+ .reset = sr9700_link_reset,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE(0x0fe6, 0x9700), /* SR9700 device */
+ .driver_info = (unsigned long)&sr9700_driver_info,
+ },
+ {}, /* END */
+};
+
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver sr9700_usb_driver = {
+ .name = "sr9700",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(sr9700_usb_driver);
+
+MODULE_AUTHOR("liujl <liujunliang_ljl@163.com>");
+MODULE_DESCRIPTION("SR9700 one chip USB 1.1 USB to Ethernet device from http://www.corechip-sz.com/");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/sr9700.h b/drivers/net/usb/sr9700.h
new file mode 100644
index 0000000..258b030
--- /dev/null
+++ b/drivers/net/usb/sr9700.h
@@ -0,0 +1,173 @@
+/*
+ * CoreChip-sz SR9700 one chip USB 1.1 Ethernet Devices
+ *
+ * Author : Liu Junliang <liujunliang_ljl@163.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _SR9700_H
+#define _SR9700_H
+
+/* sr9700 spec. register table on Linux platform */
+
+/* Network Control Reg */
+#define SR_NCR 0x00
+#define NCR_RST (1 << 0)
+#define NCR_LBK (3 << 1)
+#define NCR_FDX (1 << 3)
+#define NCR_WAKEEN (1 << 6)
+/* Network Status Reg */
+#define SR_NSR 0x01
+#define NSR_RXRDY (1 << 0)
+#define NSR_RXOV (1 << 1)
+#define NSR_TX1END (1 << 2)
+#define NSR_TX2END (1 << 3)
+#define NSR_TXFULL (1 << 4)
+#define NSR_WAKEST (1 << 5)
+#define NSR_LINKST (1 << 6)
+#define NSR_SPEED (1 << 7)
+/* Tx Control Reg */
+#define SR_TCR 0x02
+#define TCR_CRC_DIS (1 << 1)
+#define TCR_PAD_DIS (1 << 2)
+#define TCR_LC_CARE (1 << 3)
+#define TCR_CRS_CARE (1 << 4)
+#define TCR_EXCECM (1 << 5)
+#define TCR_LF_EN (1 << 6)
+/* Tx Status Reg for Packet Index 1 */
+#define SR_TSR1 0x03
+#define TSR1_EC (1 << 2)
+#define TSR1_COL (1 << 3)
+#define TSR1_LC (1 << 4)
+#define TSR1_NC (1 << 5)
+#define TSR1_LOC (1 << 6)
+#define TSR1_TLF (1 << 7)
+/* Tx Status Reg for Packet Index 2 */
+#define SR_TSR2 0x04
+#define TSR2_EC (1 << 2)
+#define TSR2_COL (1 << 3)
+#define TSR2_LC (1 << 4)
+#define TSR2_NC (1 << 5)
+#define TSR2_LOC (1 << 6)
+#define TSR2_TLF (1 << 7)
+/* Rx Control Reg*/
+#define SR_RCR 0x05
+#define RCR_RXEN (1 << 0)
+#define RCR_PRMSC (1 << 1)
+#define RCR_RUNT (1 << 2)
+#define RCR_ALL (1 << 3)
+#define RCR_DIS_CRC (1 << 4)
+#define RCR_DIS_LONG (1 << 5)
+/* Rx Status Reg */
+#define SR_RSR 0x06
+#define RSR_AE (1 << 2)
+#define RSR_MF (1 << 6)
+#define RSR_RF (1 << 7)
+/* Rx Overflow Counter Reg */
+#define SR_ROCR 0x07
+#define ROCR_ROC (0x7F << 0)
+#define ROCR_RXFU (1 << 7)
+/* Back Pressure Threshold Reg */
+#define SR_BPTR 0x08
+#define BPTR_JPT (0x0F << 0)
+#define BPTR_BPHW (0x0F << 4)
+/* Flow Control Threshold Reg */
+#define SR_FCTR 0x09
+#define FCTR_LWOT (0x0F << 0)
+#define FCTR_HWOT (0x0F << 4)
+/* rx/tx Flow Control Reg */
+#define SR_FCR 0x0A
+#define FCR_FLCE (1 << 0)
+#define FCR_BKPA (1 << 4)
+#define FCR_TXPEN (1 << 5)
+#define FCR_TXPF (1 << 6)
+#define FCR_TXP0 (1 << 7)
+/* Eeprom & Phy Control Reg */
+#define SR_EPCR 0x0B
+#define EPCR_ERRE (1 << 0)
+#define EPCR_ERPRW (1 << 1)
+#define EPCR_ERPRR (1 << 2)
+#define EPCR_EPOS (1 << 3)
+#define EPCR_WEP (1 << 4)
+/* Eeprom & Phy Address Reg */
+#define SR_EPAR 0x0C
+#define EPAR_EROA (0x3F << 0)
+#define EPAR_PHY_ADR_MASK (0x03 << 6)
+#define EPAR_PHY_ADR (0x01 << 6)
+/* Eeprom & Phy Data Reg */
+#define SR_EPDR 0x0D /* 0x0D ~ 0x0E for Data Reg Low & High */
+/* Wakeup Control Reg */
+#define SR_WCR 0x0F
+#define WCR_MAGICST (1 << 0)
+#define WCR_LINKST (1 << 2)
+#define WCR_MAGICEN (1 << 3)
+#define WCR_LINKEN (1 << 5)
+/* Physical Address Reg */
+#define SR_PAR 0x10 /* 0x10 ~ 0x15 6 bytes for PAR */
+/* Multicast Address Reg */
+#define SR_MAR 0x16 /* 0x16 ~ 0x1D 8 bytes for MAR */
+/* 0x1e unused */
+/* Phy Reset Reg */
+#define SR_PRR 0x1F
+#define PRR_PHY_RST (1 << 0)
+/* Tx sdram Write Pointer Address Low */
+#define SR_TWPAL 0x20
+/* Tx sdram Write Pointer Address High */
+#define SR_TWPAH 0x21
+/* Tx sdram Read Pointer Address Low */
+#define SR_TRPAL 0x22
+/* Tx sdram Read Pointer Address High */
+#define SR_TRPAH 0x23
+/* Rx sdram Write Pointer Address Low */
+#define SR_RWPAL 0x24
+/* Rx sdram Write Pointer Address High */
+#define SR_RWPAH 0x25
+/* Rx sdram Read Pointer Address Low */
+#define SR_RRPAL 0x26
+/* Rx sdram Read Pointer Address High */
+#define SR_RRPAH 0x27
+/* Vendor ID register */
+#define SR_VID 0x28 /* 0x28 ~ 0x29 2 bytes for VID */
+/* Product ID register */
+#define SR_PID 0x2A /* 0x2A ~ 0x2B 2 bytes for PID */
+/* CHIP Revision register */
+#define SR_CHIPR 0x2C
+/* 0x2D --> 0xEF unused */
+/* USB Device Address */
+#define SR_USBDA 0xF0
+#define USBDA_USBFA (0x7F << 0)
+/* RX packet Counter Reg */
+#define SR_RXC 0xF1
+/* Tx packet Counter & USB Status Reg */
+#define SR_TXC_USBS 0xF2
+#define TXC_USBS_TXC0 (1 << 0)
+#define TXC_USBS_TXC1 (1 << 1)
+#define TXC_USBS_TXC2 (1 << 2)
+#define TXC_USBS_EP1RDY (1 << 5)
+#define TXC_USBS_SUSFLAG (1 << 6)
+#define TXC_USBS_RXFAULT (1 << 7)
+/* USB Control register */
+#define SR_USBC 0xF4
+#define USBC_EP3NAK (1 << 4)
+#define USBC_EP3ACK (1 << 5)
+
+/* Register access commands and flags */
+#define SR_RD_REGS 0x00
+#define SR_WR_REGS 0x01
+#define SR_WR_REG 0x03
+#define SR_REQ_RD_REG (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
+#define SR_REQ_WR_REG (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
+
+/* parameters */
+#define SR_SHARE_TIMEOUT 1000
+#define SR_EEPROM_LEN 256
+#define SR_MCAST_SIZE 8
+#define SR_MCAST_ADDR_FLAG 0x80
+#define SR_MCAST_MAX 64
+#define SR_TX_OVERHEAD 2 /* 2bytes header */
+#define SR_RX_OVERHEAD 7 /* 3bytes header + 4crc tail */
+
+#endif /* _SR9700_H */
diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
new file mode 100644
index 0000000..a50df0d
--- /dev/null
+++ b/drivers/net/usb/sr9800.c
@@ -0,0 +1,871 @@
+/* CoreChip-sz SR9800 one chip USB 2.0 Ethernet Devices
+ *
+ * Author : Liu Junliang <liujunliang_ljl@163.com>
+ *
+ * Based on asix_common.c, asix_devices.c
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.*
+ */
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include <linux/slab.h>
+#include <linux/if_vlan.h>
+
+#include "sr9800.h"
+
+static int sr_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int err;
+
+ err = usbnet_read_cmd(dev, cmd, SR_REQ_RD_REG, value, index,
+ data, size);
+ if ((err != size) && (err >= 0))
+ err = -EINVAL;
+
+ return err;
+}
+
+static int sr_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int err;
+
+ err = usbnet_write_cmd(dev, cmd, SR_REQ_WR_REG, value, index,
+ data, size);
+ if ((err != size) && (err >= 0))
+ err = -EINVAL;
+
+ return err;
+}
+
+static void
+sr_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ usbnet_write_cmd_async(dev, cmd, SR_REQ_WR_REG, value, index, data,
+ size);
+}
+
+static int sr_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ int offset = 0;
+
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
+ while (offset + sizeof(u32) < skb->len) {
+ struct sk_buff *sr_skb;
+ u16 size;
+ u32 header = get_unaligned_le32(skb->data + offset);
+
+ offset += sizeof(u32);
+ /* get the packet length */
+ size = (u16) (header & 0x7ff);
+ if (size != ((~header >> 16) & 0x07ff)) {
+ netdev_err(dev->net, "%s : Bad Header Length\n",
+ __func__);
+ return 0;
+ }
+
+ if ((size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) ||
+ (size + offset > skb->len)) {
+ netdev_err(dev->net, "%s : Bad RX Length %d\n",
+ __func__, size);
+ return 0;
+ }
+ sr_skb = netdev_alloc_skb_ip_align(dev->net, size);
+ if (!sr_skb)
+ return 0;
+
+ skb_put(sr_skb, size);
+ memcpy(sr_skb->data, skb->data + offset, size);
+ usbnet_skb_return(dev, sr_skb);
+
+ offset += (size + 1) & 0xfffe;
+ }
+
+ if (skb->len != offset) {
+ netdev_err(dev->net, "%s : Bad SKB Length %d\n", __func__,
+ skb->len);
+ return 0;
+ }
+
+ return 1;
+}
+
+static struct sk_buff *sr_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ gfp_t flags)
+{
+ int headroom = skb_headroom(skb);
+ int tailroom = skb_tailroom(skb);
+ u32 padbytes = 0xffff0000;
+ u32 packet_len;
+ int padlen;
+
+ padlen = ((skb->len + 4) % (dev->maxpacket - 1)) ? 0 : 4;
+
+ if ((!skb_cloned(skb)) && ((headroom + tailroom) >= (4 + padlen))) {
+ if ((headroom < 4) || (tailroom < padlen)) {
+ skb->data = memmove(skb->head + 4, skb->data,
+ skb->len);
+ skb_set_tail_pointer(skb, skb->len);
+ }
+ } else {
+ struct sk_buff *skb2;
+ skb2 = skb_copy_expand(skb, 4, padlen, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ skb_push(skb, 4);
+ packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
+ cpu_to_le32s(&packet_len);
+ skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
+
+ if (padlen) {
+ cpu_to_le32s(&padbytes);
+ memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
+ skb_put(skb, sizeof(padbytes));
+ }
+
+ usbnet_set_skb_tx_stats(skb, 1, 0);
+ return skb;
+}
+
+static void sr_status(struct usbnet *dev, struct urb *urb)
+{
+ struct sr9800_int_data *event;
+ int link;
+
+ if (urb->actual_length < 8)
+ return;
+
+ event = urb->transfer_buffer;
+ link = event->link & 0x01;
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+
+ return;
+}
+
+static inline int sr_set_sw_mii(struct usbnet *dev)
+{
+ int ret;
+
+ ret = sr_write_cmd(dev, SR_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to enable software MII access\n");
+ return ret;
+}
+
+static inline int sr_set_hw_mii(struct usbnet *dev)
+{
+ int ret;
+
+ ret = sr_write_cmd(dev, SR_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to enable hardware MII access\n");
+ return ret;
+}
+
+static inline int sr_get_phy_addr(struct usbnet *dev)
+{
+ u8 buf[2];
+ int ret;
+
+ ret = sr_read_cmd(dev, SR_CMD_READ_PHY_ID, 0, 0, 2, buf);
+ if (ret < 0) {
+ netdev_err(dev->net, "%s : Error reading PHYID register:%02x\n",
+ __func__, ret);
+ goto out;
+ }
+ netdev_dbg(dev->net, "%s : returning 0x%04x\n", __func__,
+ *((__le16 *)buf));
+
+ ret = buf[1];
+
+out:
+ return ret;
+}
+
+static int sr_sw_reset(struct usbnet *dev, u8 flags)
+{
+ int ret;
+
+ ret = sr_write_cmd(dev, SR_CMD_SW_RESET, flags, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to send software reset:%02x\n",
+ ret);
+
+ return ret;
+}
+
+static u16 sr_read_rx_ctl(struct usbnet *dev)
+{
+ __le16 v;
+ int ret;
+
+ ret = sr_read_cmd(dev, SR_CMD_READ_RX_CTL, 0, 0, 2, &v);
+ if (ret < 0) {
+ netdev_err(dev->net, "Error reading RX_CTL register:%02x\n",
+ ret);
+ goto out;
+ }
+
+ ret = le16_to_cpu(v);
+out:
+ return ret;
+}
+
+static int sr_write_rx_ctl(struct usbnet *dev, u16 mode)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode);
+ ret = sr_write_cmd(dev, SR_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net,
+ "Failed to write RX_CTL mode to 0x%04x:%02x\n",
+ mode, ret);
+
+ return ret;
+}
+
+static u16 sr_read_medium_status(struct usbnet *dev)
+{
+ __le16 v;
+ int ret;
+
+ ret = sr_read_cmd(dev, SR_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);
+ if (ret < 0) {
+ netdev_err(dev->net,
+ "Error reading Medium Status register:%02x\n", ret);
+ return ret; /* TODO: callers not checking for error ret */
+ }
+
+ return le16_to_cpu(v);
+}
+
+static int sr_write_medium_mode(struct usbnet *dev, u16 mode)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode);
+ ret = sr_write_cmd(dev, SR_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net,
+ "Failed to write Medium Mode mode to 0x%04x:%02x\n",
+ mode, ret);
+ return ret;
+}
+
+static int sr_write_gpio(struct usbnet *dev, u16 value, int sleep)
+{
+ int ret;
+
+ netdev_dbg(dev->net, "%s : value = 0x%04x\n", __func__, value);
+ ret = sr_write_cmd(dev, SR_CMD_WRITE_GPIOS, value, 0, 0, NULL);
+ if (ret < 0)
+ netdev_err(dev->net, "Failed to write GPIO value 0x%04x:%02x\n",
+ value, ret);
+ if (sleep)
+ msleep(sleep);
+
+ return ret;
+}
+
+/* SR9800 have a 16-bit RX_CTL value */
+static void sr_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sr_data *data = (struct sr_data *)&dev->data;
+ u16 rx_ctl = SR_DEFAULT_RX_CTL;
+
+ if (net->flags & IFF_PROMISC) {
+ rx_ctl |= SR_RX_CTL_PRO;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > SR_MAX_MCAST) {
+ rx_ctl |= SR_RX_CTL_AMALL;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use the 20 byte dev->data
+ * for our 8 byte filter buffer
+ * to avoid allocating memory that
+ * is tricky to free later
+ */
+ struct netdev_hw_addr *ha;
+ u32 crc_bits;
+
+ memset(data->multi_filter, 0, SR_MCAST_FILTER_SIZE);
+
+ /* Build the multicast hash filter. */
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ data->multi_filter[crc_bits >> 3] |=
+ 1 << (crc_bits & 7);
+ }
+
+ sr_write_cmd_async(dev, SR_CMD_WRITE_MULTI_FILTER, 0, 0,
+ SR_MCAST_FILTER_SIZE, data->multi_filter);
+
+ rx_ctl |= SR_RX_CTL_AM;
+ }
+
+ sr_write_cmd_async(dev, SR_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
+}
+
+static int sr_mdio_read(struct net_device *net, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(net);
+ __le16 res;
+
+ mutex_lock(&dev->phy_mutex);
+ sr_set_sw_mii(dev);
+ sr_read_cmd(dev, SR_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, &res);
+ sr_set_hw_mii(dev);
+ mutex_unlock(&dev->phy_mutex);
+
+ netdev_dbg(dev->net,
+ "%s : phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", __func__,
+ phy_id, loc, le16_to_cpu(res));
+
+ return le16_to_cpu(res);
+}
+
+static void
+sr_mdio_write(struct net_device *net, int phy_id, int loc, int val)
+{
+ struct usbnet *dev = netdev_priv(net);
+ __le16 res = cpu_to_le16(val);
+
+ netdev_dbg(dev->net,
+ "%s : phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", __func__,
+ phy_id, loc, val);
+ mutex_lock(&dev->phy_mutex);
+ sr_set_sw_mii(dev);
+ sr_write_cmd(dev, SR_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
+ sr_set_hw_mii(dev);
+ mutex_unlock(&dev->phy_mutex);
+}
+
+/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
+static u32 sr_get_phyid(struct usbnet *dev)
+{
+ int phy_reg;
+ u32 phy_id;
+ int i;
+
+ /* Poll for the rare case the FW or phy isn't ready yet. */
+ for (i = 0; i < 100; i++) {
+ phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
+ if (phy_reg != 0 && phy_reg != 0xFFFF)
+ break;
+ mdelay(1);
+ }
+
+ if (phy_reg <= 0 || phy_reg == 0xFFFF)
+ return 0;
+
+ phy_id = (phy_reg & 0xffff) << 16;
+
+ phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
+ if (phy_reg < 0)
+ return 0;
+
+ phy_id |= (phy_reg & 0xffff);
+
+ return phy_id;
+}
+
+static void
+sr_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt;
+
+ if (sr_read_cmd(dev, SR_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
+ wolinfo->supported = 0;
+ wolinfo->wolopts = 0;
+ return;
+ }
+ wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
+ wolinfo->wolopts = 0;
+ if (opt & SR_MONITOR_LINK)
+ wolinfo->wolopts |= WAKE_PHY;
+ if (opt & SR_MONITOR_MAGIC)
+ wolinfo->wolopts |= WAKE_MAGIC;
+}
+
+static int
+sr_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 opt = 0;
+
+ if (wolinfo->wolopts & WAKE_PHY)
+ opt |= SR_MONITOR_LINK;
+ if (wolinfo->wolopts & WAKE_MAGIC)
+ opt |= SR_MONITOR_MAGIC;
+
+ if (sr_write_cmd(dev, SR_CMD_WRITE_MONITOR_MODE,
+ opt, 0, 0, NULL) < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int sr_get_eeprom_len(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sr_data *data = (struct sr_data *)&dev->data;
+
+ return data->eeprom_len;
+}
+
+static int sr_get_eeprom(struct net_device *net,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ __le16 *ebuf = (__le16 *)data;
+ int ret;
+ int i;
+
+ /* Crude hack to ensure that we don't overwrite memory
+ * if an odd length is supplied
+ */
+ if (eeprom->len % 2)
+ return -EINVAL;
+
+ eeprom->magic = SR_EEPROM_MAGIC;
+
+ /* sr9800 returns 2 bytes from eeprom on read */
+ for (i = 0; i < eeprom->len / 2; i++) {
+ ret = sr_read_cmd(dev, SR_CMD_READ_EEPROM, eeprom->offset + i,
+ 0, 2, &ebuf[i]);
+ if (ret < 0)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void sr_get_drvinfo(struct net_device *net,
+ struct ethtool_drvinfo *info)
+{
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
+}
+
+static u32 sr_get_link(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return mii_link_ok(&dev->mii);
+}
+
+static int sr_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static int sr_set_mac_address(struct net_device *net, void *p)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sr_data *data = (struct sr_data *)&dev->data;
+ struct sockaddr *addr = p;
+
+ if (netif_running(net))
+ return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
+
+ /* We use the 20 byte dev->data
+ * for our 6 byte mac buffer
+ * to avoid allocating memory that
+ * is tricky to free later
+ */
+ memcpy(data->mac_addr, addr->sa_data, ETH_ALEN);
+ sr_write_cmd_async(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+
+ return 0;
+}
+
+static const struct ethtool_ops sr9800_ethtool_ops = {
+ .get_drvinfo = sr_get_drvinfo,
+ .get_link = sr_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = sr_get_wol,
+ .set_wol = sr_set_wol,
+ .get_eeprom_len = sr_get_eeprom_len,
+ .get_eeprom = sr_get_eeprom,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .nway_reset = usbnet_nway_reset,
+};
+
+static int sr9800_link_reset(struct usbnet *dev)
+{
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+ u16 mode;
+
+ mii_check_media(&dev->mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ mode = SR9800_MEDIUM_DEFAULT;
+
+ if (ethtool_cmd_speed(&ecmd) != SPEED_100)
+ mode &= ~SR_MEDIUM_PS;
+
+ if (ecmd.duplex != DUPLEX_FULL)
+ mode &= ~SR_MEDIUM_FD;
+
+ netdev_dbg(dev->net, "%s : speed: %u duplex: %d mode: 0x%04x\n",
+ __func__, ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
+
+ sr_write_medium_mode(dev, mode);
+
+ return 0;
+}
+
+
+static int sr9800_set_default_mode(struct usbnet *dev)
+{
+ u16 rx_ctl;
+ int ret;
+
+ sr_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+ sr_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA);
+ mii_nway_restart(&dev->mii);
+
+ ret = sr_write_medium_mode(dev, SR9800_MEDIUM_DEFAULT);
+ if (ret < 0)
+ goto out;
+
+ ret = sr_write_cmd(dev, SR_CMD_WRITE_IPG012,
+ SR9800_IPG0_DEFAULT | SR9800_IPG1_DEFAULT,
+ SR9800_IPG2_DEFAULT, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
+ goto out;
+ }
+
+ /* Set RX_CTL to default values with 2k buffer, and enable cactus */
+ ret = sr_write_rx_ctl(dev, SR_DEFAULT_RX_CTL);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = sr_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
+ rx_ctl);
+
+ rx_ctl = sr_read_medium_status(dev);
+ netdev_dbg(dev->net, "Medium Status:0x%04x after all initializations\n",
+ rx_ctl);
+
+ return 0;
+out:
+ return ret;
+}
+
+static int sr9800_reset(struct usbnet *dev)
+{
+ struct sr_data *data = (struct sr_data *)&dev->data;
+ int ret, embd_phy;
+ u16 rx_ctl;
+
+ ret = sr_write_gpio(dev,
+ SR_GPIO_RSE | SR_GPIO_GPO_2 | SR_GPIO_GPO2EN, 5);
+ if (ret < 0)
+ goto out;
+
+ embd_phy = ((sr_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
+
+ ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
+ goto out;
+ }
+
+ ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ ret = sr_sw_reset(dev, SR_SWRESET_CLEAR);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ if (embd_phy) {
+ ret = sr_sw_reset(dev, SR_SWRESET_IPRL);
+ if (ret < 0)
+ goto out;
+ } else {
+ ret = sr_sw_reset(dev, SR_SWRESET_PRTE);
+ if (ret < 0)
+ goto out;
+ }
+
+ msleep(150);
+ rx_ctl = sr_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
+ ret = sr_write_rx_ctl(dev, 0x0000);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = sr_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
+
+ ret = sr_sw_reset(dev, SR_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ ret = sr_sw_reset(dev, SR_SWRESET_IPRL | SR_SWRESET_PRL);
+ if (ret < 0)
+ goto out;
+
+ msleep(150);
+
+ ret = sr9800_set_default_mode(dev);
+ if (ret < 0)
+ goto out;
+
+ /* Rewrite MAC address */
+ memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
+ ret = sr_write_cmd(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+ data->mac_addr);
+ if (ret < 0)
+ goto out;
+
+ return 0;
+
+out:
+ return ret;
+}
+
+static const struct net_device_ops sr9800_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = sr_set_mac_address,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_do_ioctl = sr_ioctl,
+ .ndo_set_rx_mode = sr_set_multicast,
+};
+
+static int sr9800_phy_powerup(struct usbnet *dev)
+{
+ int ret;
+
+ /* set the embedded Ethernet PHY in power-down state */
+ ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_IPRL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to power down PHY : %d\n", ret);
+ return ret;
+ }
+ msleep(20);
+
+ /* set the embedded Ethernet PHY in power-up state */
+ ret = sr_sw_reset(dev, SR_SWRESET_IPRL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to reset PHY: %d\n", ret);
+ return ret;
+ }
+ msleep(600);
+
+ /* set the embedded Ethernet PHY in reset state */
+ ret = sr_sw_reset(dev, SR_SWRESET_CLEAR);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to power up PHY: %d\n", ret);
+ return ret;
+ }
+ msleep(20);
+
+ /* set the embedded Ethernet PHY in power-up state */
+ ret = sr_sw_reset(dev, SR_SWRESET_IPRL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to reset PHY: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int sr9800_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct sr_data *data = (struct sr_data *)&dev->data;
+ u16 led01_mux, led23_mux;
+ int ret, embd_phy;
+ u32 phyid;
+ u16 rx_ctl;
+
+ data->eeprom_len = SR9800_EEPROM_LEN;
+
+ usbnet_get_endpoints(dev, intf);
+
+ /* LED Setting Rule :
+ * AABB:CCDD
+ * AA : MFA0(LED0)
+ * BB : MFA1(LED1)
+ * CC : MFA2(LED2), Reserved for SR9800
+ * DD : MFA3(LED3), Reserved for SR9800
+ */
+ led01_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_LINK;
+ led23_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_TX_ACTIVE;
+ ret = sr_write_cmd(dev, SR_CMD_LED_MUX, led01_mux, led23_mux, 0, NULL);
+ if (ret < 0) {
+ netdev_err(dev->net, "set LINK LED failed : %d\n", ret);
+ goto out;
+ }
+
+ /* Get the MAC address */
+ ret = sr_read_cmd(dev, SR_CMD_READ_NODE_ID, 0, 0, ETH_ALEN,
+ dev->net->dev_addr);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
+ return ret;
+ }
+ netdev_dbg(dev->net, "mac addr : %pM\n", dev->net->dev_addr);
+
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = sr_mdio_read;
+ dev->mii.mdio_write = sr_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = sr_get_phy_addr(dev);
+
+ dev->net->netdev_ops = &sr9800_netdev_ops;
+ dev->net->ethtool_ops = &sr9800_ethtool_ops;
+
+ embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
+ /* Reset the PHY to normal operation mode */
+ ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Init PHY routine */
+ ret = sr9800_phy_powerup(dev);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = sr_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
+ ret = sr_write_rx_ctl(dev, 0x0000);
+ if (ret < 0)
+ goto out;
+
+ rx_ctl = sr_read_rx_ctl(dev);
+ netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
+
+ /* Read PHYID register *AFTER* the PHY was reset properly */
+ phyid = sr_get_phyid(dev);
+ netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
+
+ /* medium mode setting */
+ ret = sr9800_set_default_mode(dev);
+ if (ret < 0)
+ goto out;
+
+ if (dev->udev->speed == USB_SPEED_HIGH) {
+ ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE,
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].byte_cnt,
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].threshold,
+ 0, NULL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret);
+ goto out;
+ }
+ dev->rx_urb_size =
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].size;
+ } else {
+ ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE,
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].byte_cnt,
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].threshold,
+ 0, NULL);
+ if (ret < 0) {
+ netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret);
+ goto out;
+ }
+ dev->rx_urb_size =
+ SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].size;
+ }
+ netdev_dbg(dev->net, "%s : setting rx_urb_size with : %zu\n", __func__,
+ dev->rx_urb_size);
+ return 0;
+
+out:
+ return ret;
+}
+
+static const struct driver_info sr9800_driver_info = {
+ .description = "CoreChip SR9800 USB 2.0 Ethernet",
+ .bind = sr9800_bind,
+ .status = sr_status,
+ .link_reset = sr9800_link_reset,
+ .reset = sr9800_reset,
+ .flags = DRIVER_FLAG,
+ .rx_fixup = sr_rx_fixup,
+ .tx_fixup = sr_tx_fixup,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ USB_DEVICE(0x0fe6, 0x9800), /* SR9800 Device */
+ .driver_info = (unsigned long) &sr9800_driver_info,
+ },
+ {}, /* END */
+};
+
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver sr_driver = {
+ .name = DRIVER_NAME,
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disconnect = usbnet_disconnect,
+ .supports_autosuspend = 1,
+};
+
+module_usb_driver(sr_driver);
+
+MODULE_AUTHOR("Liu Junliang <liujunliang_ljl@163.com");
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_DESCRIPTION("SR9800 USB 2.0 USB2NET Dev : http://www.corechip-sz.com");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/sr9800.h b/drivers/net/usb/sr9800.h
new file mode 100644
index 0000000..18f6702
--- /dev/null
+++ b/drivers/net/usb/sr9800.h
@@ -0,0 +1,202 @@
+/* CoreChip-sz SR9800 one chip USB 2.0 Ethernet Devices
+ *
+ * Author : Liu Junliang <liujunliang_ljl@163.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _SR9800_H
+#define _SR9800_H
+
+/* SR9800 spec. command table on Linux Platform */
+
+/* command : Software Station Management Control Reg */
+#define SR_CMD_SET_SW_MII 0x06
+/* command : PHY Read Reg */
+#define SR_CMD_READ_MII_REG 0x07
+/* command : PHY Write Reg */
+#define SR_CMD_WRITE_MII_REG 0x08
+/* command : Hardware Station Management Control Reg */
+#define SR_CMD_SET_HW_MII 0x0a
+/* command : SROM Read Reg */
+#define SR_CMD_READ_EEPROM 0x0b
+/* command : SROM Write Reg */
+#define SR_CMD_WRITE_EEPROM 0x0c
+/* command : SROM Write Enable Reg */
+#define SR_CMD_WRITE_ENABLE 0x0d
+/* command : SROM Write Disable Reg */
+#define SR_CMD_WRITE_DISABLE 0x0e
+/* command : RX Control Read Reg */
+#define SR_CMD_READ_RX_CTL 0x0f
+#define SR_RX_CTL_PRO (1 << 0)
+#define SR_RX_CTL_AMALL (1 << 1)
+#define SR_RX_CTL_SEP (1 << 2)
+#define SR_RX_CTL_AB (1 << 3)
+#define SR_RX_CTL_AM (1 << 4)
+#define SR_RX_CTL_AP (1 << 5)
+#define SR_RX_CTL_ARP (1 << 6)
+#define SR_RX_CTL_SO (1 << 7)
+#define SR_RX_CTL_RH1M (1 << 8)
+#define SR_RX_CTL_RH2M (1 << 9)
+#define SR_RX_CTL_RH3M (1 << 10)
+/* command : RX Control Write Reg */
+#define SR_CMD_WRITE_RX_CTL 0x10
+/* command : IPG0/IPG1/IPG2 Control Read Reg */
+#define SR_CMD_READ_IPG012 0x11
+/* command : IPG0/IPG1/IPG2 Control Write Reg */
+#define SR_CMD_WRITE_IPG012 0x12
+/* command : Node ID Read Reg */
+#define SR_CMD_READ_NODE_ID 0x13
+/* command : Node ID Write Reg */
+#define SR_CMD_WRITE_NODE_ID 0x14
+/* command : Multicast Filter Array Read Reg */
+#define SR_CMD_READ_MULTI_FILTER 0x15
+/* command : Multicast Filter Array Write Reg */
+#define SR_CMD_WRITE_MULTI_FILTER 0x16
+/* command : Eth/HomePNA PHY Address Reg */
+#define SR_CMD_READ_PHY_ID 0x19
+/* command : Medium Status Read Reg */
+#define SR_CMD_READ_MEDIUM_STATUS 0x1a
+#define SR_MONITOR_LINK (1 << 1)
+#define SR_MONITOR_MAGIC (1 << 2)
+#define SR_MONITOR_HSFS (1 << 4)
+/* command : Medium Status Write Reg */
+#define SR_CMD_WRITE_MEDIUM_MODE 0x1b
+#define SR_MEDIUM_GM (1 << 0)
+#define SR_MEDIUM_FD (1 << 1)
+#define SR_MEDIUM_AC (1 << 2)
+#define SR_MEDIUM_ENCK (1 << 3)
+#define SR_MEDIUM_RFC (1 << 4)
+#define SR_MEDIUM_TFC (1 << 5)
+#define SR_MEDIUM_JFE (1 << 6)
+#define SR_MEDIUM_PF (1 << 7)
+#define SR_MEDIUM_RE (1 << 8)
+#define SR_MEDIUM_PS (1 << 9)
+#define SR_MEDIUM_RSV (1 << 10)
+#define SR_MEDIUM_SBP (1 << 11)
+#define SR_MEDIUM_SM (1 << 12)
+/* command : Monitor Mode Status Read Reg */
+#define SR_CMD_READ_MONITOR_MODE 0x1c
+/* command : Monitor Mode Status Write Reg */
+#define SR_CMD_WRITE_MONITOR_MODE 0x1d
+/* command : GPIO Status Read Reg */
+#define SR_CMD_READ_GPIOS 0x1e
+#define SR_GPIO_GPO0EN (1 << 0) /* GPIO0 Output enable */
+#define SR_GPIO_GPO_0 (1 << 1) /* GPIO0 Output value */
+#define SR_GPIO_GPO1EN (1 << 2) /* GPIO1 Output enable */
+#define SR_GPIO_GPO_1 (1 << 3) /* GPIO1 Output value */
+#define SR_GPIO_GPO2EN (1 << 4) /* GPIO2 Output enable */
+#define SR_GPIO_GPO_2 (1 << 5) /* GPIO2 Output value */
+#define SR_GPIO_RESERVED (1 << 6) /* Reserved */
+#define SR_GPIO_RSE (1 << 7) /* Reload serial EEPROM */
+/* command : GPIO Status Write Reg */
+#define SR_CMD_WRITE_GPIOS 0x1f
+/* command : Eth PHY Power and Reset Control Reg */
+#define SR_CMD_SW_RESET 0x20
+#define SR_SWRESET_CLEAR 0x00
+#define SR_SWRESET_RR (1 << 0)
+#define SR_SWRESET_RT (1 << 1)
+#define SR_SWRESET_PRTE (1 << 2)
+#define SR_SWRESET_PRL (1 << 3)
+#define SR_SWRESET_BZ (1 << 4)
+#define SR_SWRESET_IPRL (1 << 5)
+#define SR_SWRESET_IPPD (1 << 6)
+/* command : Software Interface Selection Status Read Reg */
+#define SR_CMD_SW_PHY_STATUS 0x21
+/* command : Software Interface Selection Status Write Reg */
+#define SR_CMD_SW_PHY_SELECT 0x22
+/* command : BULK in Buffer Size Reg */
+#define SR_CMD_BULKIN_SIZE 0x2A
+/* command : LED_MUX Control Reg */
+#define SR_CMD_LED_MUX 0x70
+#define SR_LED_MUX_TX_ACTIVE (1 << 0)
+#define SR_LED_MUX_RX_ACTIVE (1 << 1)
+#define SR_LED_MUX_COLLISION (1 << 2)
+#define SR_LED_MUX_DUP_COL (1 << 3)
+#define SR_LED_MUX_DUP (1 << 4)
+#define SR_LED_MUX_SPEED (1 << 5)
+#define SR_LED_MUX_LINK_ACTIVE (1 << 6)
+#define SR_LED_MUX_LINK (1 << 7)
+
+/* Register Access Flags */
+#define SR_REQ_RD_REG (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
+#define SR_REQ_WR_REG (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
+
+/* Multicast Filter Array size & Max Number */
+#define SR_MCAST_FILTER_SIZE 8
+#define SR_MAX_MCAST 64
+
+/* IPG0/1/2 Default Value */
+#define SR9800_IPG0_DEFAULT 0x15
+#define SR9800_IPG1_DEFAULT 0x0c
+#define SR9800_IPG2_DEFAULT 0x12
+
+/* Medium Status Default Mode */
+#define SR9800_MEDIUM_DEFAULT \
+ (SR_MEDIUM_FD | SR_MEDIUM_RFC | \
+ SR_MEDIUM_TFC | SR_MEDIUM_PS | \
+ SR_MEDIUM_AC | SR_MEDIUM_RE)
+
+/* RX Control Default Setting */
+#define SR_DEFAULT_RX_CTL \
+ (SR_RX_CTL_SO | SR_RX_CTL_AB | SR_RX_CTL_RH1M)
+
+/* EEPROM Magic Number & EEPROM Size */
+#define SR_EEPROM_MAGIC 0xdeadbeef
+#define SR9800_EEPROM_LEN 0xff
+
+/* SR9800 Driver Version and Driver Name */
+#define DRIVER_VERSION "11-Nov-2013"
+#define DRIVER_NAME "CoreChips"
+#define DRIVER_FLAG \
+ (FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET)
+
+/* SR9800 BULKIN Buffer Size */
+#define SR9800_MAX_BULKIN_2K 0
+#define SR9800_MAX_BULKIN_4K 1
+#define SR9800_MAX_BULKIN_6K 2
+#define SR9800_MAX_BULKIN_8K 3
+#define SR9800_MAX_BULKIN_16K 4
+#define SR9800_MAX_BULKIN_20K 5
+#define SR9800_MAX_BULKIN_24K 6
+#define SR9800_MAX_BULKIN_32K 7
+
+struct {unsigned short size, byte_cnt, threshold; } SR9800_BULKIN_SIZE[] = {
+ /* 2k */
+ {2048, 0x8000, 0x8001},
+ /* 4k */
+ {4096, 0x8100, 0x8147},
+ /* 6k */
+ {6144, 0x8200, 0x81EB},
+ /* 8k */
+ {8192, 0x8300, 0x83D7},
+ /* 16 */
+ {16384, 0x8400, 0x851E},
+ /* 20k */
+ {20480, 0x8500, 0x8666},
+ /* 24k */
+ {24576, 0x8600, 0x87AE},
+ /* 32k */
+ {32768, 0x8700, 0x8A3D},
+};
+
+/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
+struct sr_data {
+ u8 multi_filter[SR_MCAST_FILTER_SIZE];
+ u8 mac_addr[ETH_ALEN];
+ u8 phymode;
+ u8 ledmode;
+ u8 eeprom_len;
+};
+
+struct sr9800_int_data {
+ __le16 res1;
+ u8 link;
+ __le16 res2;
+ u8 status;
+ __le16 res3;
+} __packed;
+
+#endif /* _SR9800_H */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
new file mode 100644
index 0000000..9710cf7
--- /dev/null
+++ b/drivers/net/usb/usbnet.c
@@ -0,0 +1,2268 @@
+/*
+ * USB Network driver infrastructure
+ * Copyright (C) 2000-2005 by David Brownell
+ * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This is a generic "USB networking" framework that works with several
+ * kinds of full and high speed networking devices: host-to-host cables,
+ * smart usb peripherals, and actual Ethernet adapters.
+ *
+ * These devices usually differ in terms of control protocols (if they
+ * even have one!) and sometimes they define new framing to wrap or batch
+ * Ethernet packets. Otherwise, they talk to USB pretty much the same,
+ * so interface (un)binding, endpoint I/O queues, fault handling, and other
+ * issues can usefully be addressed by this framework.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ctype.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/pm_runtime.h>
+
+#define DRIVER_VERSION "22-Aug-2005"
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Nineteen USB 1.1 max size bulk transactions per frame (ms), max.
+ * Several dozen bytes of IPv4 data can fit in two such transactions.
+ * One maximum size Ethernet packet takes twenty four of them.
+ * For high speed, each frame comfortably fits almost 36 max size
+ * Ethernet packets (so queues should be bigger).
+ *
+ * The goal is to let the USB host controller be busy for 5msec or
+ * more before an irq is required, under load. Jumbograms change
+ * the equation.
+ */
+#define MAX_QUEUE_MEMORY (60 * 1518)
+#define RX_QLEN(dev) ((dev)->rx_qlen)
+#define TX_QLEN(dev) ((dev)->tx_qlen)
+
+// reawaken network queue this soon after stopping; else watchdog barks
+#define TX_TIMEOUT_JIFFIES (5*HZ)
+
+/* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
+ * us (it polls at HZ/4 usually) before we report too many false errors.
+ */
+#define THROTTLE_JIFFIES (HZ/8)
+
+// between wakeups
+#define UNLINK_TIMEOUT_MS 3
+
+/*-------------------------------------------------------------------------*/
+
+// randomly generated ethernet address
+static u8 node_id [ETH_ALEN];
+
+static const char driver_name [] = "usbnet";
+
+/* use ethtool to change the level for any given device */
+static int msg_level = -1;
+module_param (msg_level, int, 0);
+MODULE_PARM_DESC (msg_level, "Override default message level");
+
+/*-------------------------------------------------------------------------*/
+
+/* handles CDC Ethernet and many other network "bulk data" interfaces */
+int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
+{
+ int tmp;
+ struct usb_host_interface *alt = NULL;
+ struct usb_host_endpoint *in = NULL, *out = NULL;
+ struct usb_host_endpoint *status = NULL;
+
+ for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
+ unsigned ep;
+
+ in = out = status = NULL;
+ alt = intf->altsetting + tmp;
+
+ /* take the first altsetting with in-bulk + out-bulk;
+ * remember any status endpoint, just in case;
+ * ignore other endpoints and altsettings.
+ */
+ for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
+ struct usb_host_endpoint *e;
+ int intr = 0;
+
+ e = alt->endpoint + ep;
+ switch (e->desc.bmAttributes) {
+ case USB_ENDPOINT_XFER_INT:
+ if (!usb_endpoint_dir_in(&e->desc))
+ continue;
+ intr = 1;
+ /* FALLTHROUGH */
+ case USB_ENDPOINT_XFER_BULK:
+ break;
+ default:
+ continue;
+ }
+ if (usb_endpoint_dir_in(&e->desc)) {
+ if (!intr && !in)
+ in = e;
+ else if (intr && !status)
+ status = e;
+ } else {
+ if (!out)
+ out = e;
+ }
+ }
+ if (in && out)
+ break;
+ }
+ if (!alt || !in || !out)
+ return -EINVAL;
+
+ if (alt->desc.bAlternateSetting != 0 ||
+ !(dev->driver_info->flags & FLAG_NO_SETINT)) {
+ tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber,
+ alt->desc.bAlternateSetting);
+ if (tmp < 0)
+ return tmp;
+ }
+
+ dev->in = usb_rcvbulkpipe (dev->udev,
+ in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ dev->out = usb_sndbulkpipe (dev->udev,
+ out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ dev->status = status;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
+
+int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress)
+{
+ int tmp = -1, ret;
+ unsigned char buf [13];
+
+ ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf);
+ if (ret == 12)
+ tmp = hex2bin(dev->net->dev_addr, buf, 6);
+ if (tmp < 0) {
+ dev_dbg(&dev->udev->dev,
+ "bad MAC string %d fetch, %d\n", iMACAddress, tmp);
+ if (ret >= 0)
+ ret = -EINVAL;
+ return ret;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
+
+static void intr_complete (struct urb *urb)
+{
+ struct usbnet *dev = urb->context;
+ int status = urb->status;
+
+ switch (status) {
+ /* success */
+ case 0:
+ dev->driver_info->status(dev, urb);
+ break;
+
+ /* software-driven interface shutdown */
+ case -ENOENT: /* urb killed */
+ case -ESHUTDOWN: /* hardware gone */
+ netif_dbg(dev, ifdown, dev->net,
+ "intr shutdown, code %d\n", status);
+ return;
+
+ /* NOTE: not throttling like RX/TX, since this endpoint
+ * already polls infrequently
+ */
+ default:
+ netdev_dbg(dev->net, "intr status %d\n", status);
+ break;
+ }
+
+ status = usb_submit_urb (urb, GFP_ATOMIC);
+ if (status != 0)
+ netif_err(dev, timer, dev->net,
+ "intr resubmit --> %d\n", status);
+}
+
+static int init_status (struct usbnet *dev, struct usb_interface *intf)
+{
+ char *buf = NULL;
+ unsigned pipe = 0;
+ unsigned maxp;
+ unsigned period;
+
+ if (!dev->driver_info->status)
+ return 0;
+
+ pipe = usb_rcvintpipe (dev->udev,
+ dev->status->desc.bEndpointAddress
+ & USB_ENDPOINT_NUMBER_MASK);
+ maxp = usb_maxpacket (dev->udev, pipe, 0);
+
+ /* avoid 1 msec chatter: min 8 msec poll rate */
+ period = max ((int) dev->status->desc.bInterval,
+ (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3);
+
+ buf = kmalloc (maxp, GFP_KERNEL);
+ if (buf) {
+ dev->interrupt = usb_alloc_urb (0, GFP_KERNEL);
+ if (!dev->interrupt) {
+ kfree (buf);
+ return -ENOMEM;
+ } else {
+ usb_fill_int_urb(dev->interrupt, dev->udev, pipe,
+ buf, maxp, intr_complete, dev, period);
+ dev->interrupt->transfer_flags |= URB_FREE_BUFFER;
+ dev_dbg(&intf->dev,
+ "status ep%din, %d bytes period %d\n",
+ usb_pipeendpoint(pipe), maxp, period);
+ }
+ }
+ return 0;
+}
+
+/* Submit the interrupt URB if not previously submitted, increasing refcount */
+int usbnet_status_start(struct usbnet *dev, gfp_t mem_flags)
+{
+ int ret = 0;
+
+ WARN_ON_ONCE(dev->interrupt == NULL);
+ if (dev->interrupt) {
+ mutex_lock(&dev->interrupt_mutex);
+
+ if (++dev->interrupt_count == 1)
+ ret = usb_submit_urb(dev->interrupt, mem_flags);
+
+ dev_dbg(&dev->udev->dev, "incremented interrupt URB count to %d\n",
+ dev->interrupt_count);
+ mutex_unlock(&dev->interrupt_mutex);
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(usbnet_status_start);
+
+/* For resume; submit interrupt URB if previously submitted */
+static int __usbnet_status_start_force(struct usbnet *dev, gfp_t mem_flags)
+{
+ int ret = 0;
+
+ mutex_lock(&dev->interrupt_mutex);
+ if (dev->interrupt_count) {
+ ret = usb_submit_urb(dev->interrupt, mem_flags);
+ dev_dbg(&dev->udev->dev,
+ "submitted interrupt URB for resume\n");
+ }
+ mutex_unlock(&dev->interrupt_mutex);
+ return ret;
+}
+
+/* Kill the interrupt URB if all submitters want it killed */
+void usbnet_status_stop(struct usbnet *dev)
+{
+ if (dev->interrupt) {
+ mutex_lock(&dev->interrupt_mutex);
+ WARN_ON(dev->interrupt_count == 0);
+
+ if (dev->interrupt_count && --dev->interrupt_count == 0)
+ usb_kill_urb(dev->interrupt);
+
+ dev_dbg(&dev->udev->dev,
+ "decremented interrupt URB count to %d\n",
+ dev->interrupt_count);
+ mutex_unlock(&dev->interrupt_mutex);
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_status_stop);
+
+/* For suspend; always kill interrupt URB */
+static void __usbnet_status_stop_force(struct usbnet *dev)
+{
+ if (dev->interrupt) {
+ mutex_lock(&dev->interrupt_mutex);
+ usb_kill_urb(dev->interrupt);
+ dev_dbg(&dev->udev->dev, "killed interrupt URB for suspend\n");
+ mutex_unlock(&dev->interrupt_mutex);
+ }
+}
+
+/* Passes this packet up the stack, updating its accounting.
+ * Some link protocols batch packets, so their rx_fixup paths
+ * can return clones as well as just modify the original skb.
+ */
+void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
+{
+ int status;
+
+ if (test_bit(EVENT_RX_PAUSED, &dev->flags)) {
+ skb_queue_tail(&dev->rxq_pause, skb);
+ return;
+ }
+
+ skb->protocol = eth_type_trans (skb, dev->net);
+ dev->net->stats.rx_packets++;
+ dev->net->stats.rx_bytes += skb->len;
+
+ netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
+ skb->len + sizeof (struct ethhdr), skb->protocol);
+ memset (skb->cb, 0, sizeof (struct skb_data));
+
+ if (skb_defer_rx_timestamp(skb))
+ return;
+
+ status = netif_rx (skb);
+ if (status != NET_RX_SUCCESS)
+ netif_dbg(dev, rx_err, dev->net,
+ "netif_rx status %d\n", status);
+}
+EXPORT_SYMBOL_GPL(usbnet_skb_return);
+
+/* must be called if hard_mtu or rx_urb_size changed */
+void usbnet_update_max_qlen(struct usbnet *dev)
+{
+ enum usb_device_speed speed = dev->udev->speed;
+
+ switch (speed) {
+ case USB_SPEED_HIGH:
+ dev->rx_qlen = MAX_QUEUE_MEMORY / dev->rx_urb_size;
+ dev->tx_qlen = MAX_QUEUE_MEMORY / dev->hard_mtu;
+ break;
+ case USB_SPEED_SUPER:
+ /*
+ * Not take default 5ms qlen for super speed HC to
+ * save memory, and iperf tests show 2.5ms qlen can
+ * work well
+ */
+ dev->rx_qlen = 5 * MAX_QUEUE_MEMORY / dev->rx_urb_size;
+ dev->tx_qlen = 5 * MAX_QUEUE_MEMORY / dev->hard_mtu;
+ break;
+ default:
+ dev->rx_qlen = dev->tx_qlen = 4;
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_update_max_qlen);
+
+
+/*-------------------------------------------------------------------------
+ *
+ * Network Device Driver (peer link to "Host Device", from USB host)
+ *
+ *-------------------------------------------------------------------------*/
+
+int usbnet_change_mtu (struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ int ll_mtu = new_mtu + net->hard_header_len;
+ int old_hard_mtu = dev->hard_mtu;
+ int old_rx_urb_size = dev->rx_urb_size;
+
+ if (new_mtu <= 0)
+ return -EINVAL;
+ // no second zero-length packet read wanted after mtu-sized packets
+ if ((ll_mtu % dev->maxpacket) == 0)
+ return -EDOM;
+ net->mtu = new_mtu;
+
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+ if (dev->rx_urb_size == old_hard_mtu) {
+ dev->rx_urb_size = dev->hard_mtu;
+ if (dev->rx_urb_size > old_rx_urb_size)
+ usbnet_unlink_rx_urbs(dev);
+ }
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_change_mtu);
+
+/* The caller must hold list->lock */
+static void __usbnet_queue_skb(struct sk_buff_head *list,
+ struct sk_buff *newsk, enum skb_state state)
+{
+ struct skb_data *entry = (struct skb_data *) newsk->cb;
+
+ __skb_queue_tail(list, newsk);
+ entry->state = state;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* some LK 2.4 HCDs oopsed if we freed or resubmitted urbs from
+ * completion callbacks. 2.5 should have fixed those bugs...
+ */
+
+static enum skb_state defer_bh(struct usbnet *dev, struct sk_buff *skb,
+ struct sk_buff_head *list, enum skb_state state)
+{
+ unsigned long flags;
+ enum skb_state old_state;
+ struct skb_data *entry = (struct skb_data *) skb->cb;
+
+ spin_lock_irqsave(&list->lock, flags);
+ old_state = entry->state;
+ entry->state = state;
+ __skb_unlink(skb, list);
+
+ /* defer_bh() is never called with list == &dev->done.
+ * spin_lock_nested() tells lockdep that it is OK to take
+ * dev->done.lock here with list->lock held.
+ */
+ spin_lock_nested(&dev->done.lock, SINGLE_DEPTH_NESTING);
+
+ __skb_queue_tail(&dev->done, skb);
+ if (dev->done.qlen == 1)
+ tasklet_schedule(&dev->bh);
+ spin_unlock(&dev->done.lock);
+ spin_unlock_irqrestore(&list->lock, flags);
+ return old_state;
+}
+
+/* some work can't be done in tasklets, so we use keventd
+ *
+ * NOTE: annoying asymmetry: if it's active, schedule_work() fails,
+ * but tasklet_schedule() doesn't. hope the failure is rare.
+ */
+void usbnet_defer_kevent (struct usbnet *dev, int work)
+{
+ set_bit (work, &dev->flags);
+ if (!schedule_work (&dev->kevent)) {
+ if (net_ratelimit())
+ netdev_err(dev->net, "kevent %d may have been dropped\n", work);
+ } else {
+ netdev_dbg(dev->net, "kevent %d scheduled\n", work);
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
+
+/*-------------------------------------------------------------------------*/
+
+static void rx_complete (struct urb *urb);
+
+static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
+{
+ struct sk_buff *skb;
+ struct skb_data *entry;
+ int retval = 0;
+ unsigned long lockflags;
+ size_t size = dev->rx_urb_size;
+
+ /* prevent rx skb allocation when error ratio is high */
+ if (test_bit(EVENT_RX_KILL, &dev->flags)) {
+ usb_free_urb(urb);
+ return -ENOLINK;
+ }
+
+ skb = __netdev_alloc_skb_ip_align(dev->net, size, flags);
+ if (!skb) {
+ netif_dbg(dev, rx_err, dev->net, "no rx skb\n");
+ usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
+ usb_free_urb (urb);
+ return -ENOMEM;
+ }
+
+ entry = (struct skb_data *) skb->cb;
+ entry->urb = urb;
+ entry->dev = dev;
+ entry->length = 0;
+
+ usb_fill_bulk_urb (urb, dev->udev, dev->in,
+ skb->data, size, rx_complete, skb);
+
+ spin_lock_irqsave (&dev->rxq.lock, lockflags);
+
+ if (netif_running (dev->net) &&
+ netif_device_present (dev->net) &&
+ !test_bit (EVENT_RX_HALT, &dev->flags) &&
+ !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) {
+ switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) {
+ case -EPIPE:
+ usbnet_defer_kevent (dev, EVENT_RX_HALT);
+ break;
+ case -ENOMEM:
+ usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
+ break;
+ case -ENODEV:
+ netif_dbg(dev, ifdown, dev->net, "device gone\n");
+ netif_device_detach (dev->net);
+ break;
+ case -EHOSTUNREACH:
+ retval = -ENOLINK;
+ break;
+ default:
+ netif_dbg(dev, rx_err, dev->net,
+ "rx submit, %d\n", retval);
+ tasklet_schedule (&dev->bh);
+ break;
+ case 0:
+ __usbnet_queue_skb(&dev->rxq, skb, rx_start);
+ }
+ } else {
+ netif_dbg(dev, ifdown, dev->net, "rx: stopped\n");
+ retval = -ENOLINK;
+ }
+ spin_unlock_irqrestore (&dev->rxq.lock, lockflags);
+ if (retval) {
+ dev_kfree_skb_any (skb);
+ usb_free_urb (urb);
+ }
+ return retval;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
+{
+ if (dev->driver_info->rx_fixup &&
+ !dev->driver_info->rx_fixup (dev, skb)) {
+ /* With RX_ASSEMBLE, rx_fixup() must update counters */
+ if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE))
+ dev->net->stats.rx_errors++;
+ goto done;
+ }
+ // else network stack removes extra byte if we forced a short packet
+
+ /* all data was already cloned from skb inside the driver */
+ if (dev->driver_info->flags & FLAG_MULTI_PACKET)
+ goto done;
+
+ if (skb->len < ETH_HLEN) {
+ dev->net->stats.rx_errors++;
+ dev->net->stats.rx_length_errors++;
+ netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len);
+ } else {
+ usbnet_skb_return(dev, skb);
+ return;
+ }
+
+done:
+ skb_queue_tail(&dev->done, skb);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void rx_complete (struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *) urb->context;
+ struct skb_data *entry = (struct skb_data *) skb->cb;
+ struct usbnet *dev = entry->dev;
+ int urb_status = urb->status;
+ enum skb_state state;
+
+ skb_put (skb, urb->actual_length);
+ state = rx_done;
+ entry->urb = NULL;
+
+ switch (urb_status) {
+ /* success */
+ case 0:
+ break;
+
+ /* stalls need manual reset. this is rare ... except that
+ * when going through USB 2.0 TTs, unplug appears this way.
+ * we avoid the highspeed version of the ETIMEDOUT/EILSEQ
+ * storm, recovering as needed.
+ */
+ case -EPIPE:
+ dev->net->stats.rx_errors++;
+ usbnet_defer_kevent (dev, EVENT_RX_HALT);
+ // FALLTHROUGH
+
+ /* software-driven interface shutdown */
+ case -ECONNRESET: /* async unlink */
+ case -ESHUTDOWN: /* hardware gone */
+ netif_dbg(dev, ifdown, dev->net,
+ "rx shutdown, code %d\n", urb_status);
+ goto block;
+
+ /* we get controller i/o faults during hub_wq disconnect() delays.
+ * throttle down resubmits, to avoid log floods; just temporarily,
+ * so we still recover when the fault isn't a hub_wq delay.
+ */
+ case -EPROTO:
+ case -ETIME:
+ case -EILSEQ:
+ dev->net->stats.rx_errors++;
+ if (!timer_pending (&dev->delay)) {
+ mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
+ netif_dbg(dev, link, dev->net,
+ "rx throttle %d\n", urb_status);
+ }
+block:
+ state = rx_cleanup;
+ entry->urb = urb;
+ urb = NULL;
+ break;
+
+ /* data overrun ... flush fifo? */
+ case -EOVERFLOW:
+ dev->net->stats.rx_over_errors++;
+ // FALLTHROUGH
+
+ default:
+ state = rx_cleanup;
+ dev->net->stats.rx_errors++;
+ netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status);
+ break;
+ }
+
+ /* stop rx if packet error rate is high */
+ if (++dev->pkt_cnt > 30) {
+ dev->pkt_cnt = 0;
+ dev->pkt_err = 0;
+ } else {
+ if (state == rx_cleanup)
+ dev->pkt_err++;
+ if (dev->pkt_err > 20)
+ set_bit(EVENT_RX_KILL, &dev->flags);
+ }
+
+ state = defer_bh(dev, skb, &dev->rxq, state);
+
+ if (urb) {
+ if (netif_running (dev->net) &&
+ !test_bit (EVENT_RX_HALT, &dev->flags) &&
+ state != unlink_start) {
+ rx_submit (dev, urb, GFP_ATOMIC);
+ usb_mark_last_busy(dev->udev);
+ return;
+ }
+ usb_free_urb (urb);
+ }
+ netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n");
+}
+
+/*-------------------------------------------------------------------------*/
+void usbnet_pause_rx(struct usbnet *dev)
+{
+ set_bit(EVENT_RX_PAUSED, &dev->flags);
+
+ netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n");
+}
+EXPORT_SYMBOL_GPL(usbnet_pause_rx);
+
+void usbnet_resume_rx(struct usbnet *dev)
+{
+ struct sk_buff *skb;
+ int num = 0;
+
+ clear_bit(EVENT_RX_PAUSED, &dev->flags);
+
+ while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) {
+ usbnet_skb_return(dev, skb);
+ num++;
+ }
+
+ tasklet_schedule(&dev->bh);
+
+ netif_dbg(dev, rx_status, dev->net,
+ "paused rx queue disabled, %d skbs requeued\n", num);
+}
+EXPORT_SYMBOL_GPL(usbnet_resume_rx);
+
+void usbnet_purge_paused_rxq(struct usbnet *dev)
+{
+ skb_queue_purge(&dev->rxq_pause);
+}
+EXPORT_SYMBOL_GPL(usbnet_purge_paused_rxq);
+
+/*-------------------------------------------------------------------------*/
+
+// unlink pending rx/tx; completion handlers do all other cleanup
+
+static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
+{
+ unsigned long flags;
+ struct sk_buff *skb;
+ int count = 0;
+
+ spin_lock_irqsave (&q->lock, flags);
+ while (!skb_queue_empty(q)) {
+ struct skb_data *entry;
+ struct urb *urb;
+ int retval;
+
+ skb_queue_walk(q, skb) {
+ entry = (struct skb_data *) skb->cb;
+ if (entry->state != unlink_start)
+ goto found;
+ }
+ break;
+found:
+ entry->state = unlink_start;
+ urb = entry->urb;
+
+ /*
+ * Get reference count of the URB to avoid it to be
+ * freed during usb_unlink_urb, which may trigger
+ * use-after-free problem inside usb_unlink_urb since
+ * usb_unlink_urb is always racing with .complete
+ * handler(include defer_bh).
+ */
+ usb_get_urb(urb);
+ spin_unlock_irqrestore(&q->lock, flags);
+ // during some PM-driven resume scenarios,
+ // these (async) unlinks complete immediately
+ retval = usb_unlink_urb (urb);
+ if (retval != -EINPROGRESS && retval != 0)
+ netdev_dbg(dev->net, "unlink urb err, %d\n", retval);
+ else
+ count++;
+ usb_put_urb(urb);
+ spin_lock_irqsave(&q->lock, flags);
+ }
+ spin_unlock_irqrestore (&q->lock, flags);
+ return count;
+}
+
+// Flush all pending rx urbs
+// minidrivers may need to do this when the MTU changes
+
+void usbnet_unlink_rx_urbs(struct usbnet *dev)
+{
+ if (netif_running(dev->net)) {
+ (void) unlink_urbs (dev, &dev->rxq);
+ tasklet_schedule(&dev->bh);
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs);
+
+/*-------------------------------------------------------------------------*/
+
+static void wait_skb_queue_empty(struct sk_buff_head *q)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&q->lock, flags);
+ while (!skb_queue_empty(q)) {
+ spin_unlock_irqrestore(&q->lock, flags);
+ schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS));
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ spin_lock_irqsave(&q->lock, flags);
+ }
+ spin_unlock_irqrestore(&q->lock, flags);
+}
+
+// precondition: never called in_interrupt
+static void usbnet_terminate_urbs(struct usbnet *dev)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ int temp;
+
+ /* ensure there are no more active urbs */
+ add_wait_queue(&dev->wait, &wait);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ temp = unlink_urbs(dev, &dev->txq) +
+ unlink_urbs(dev, &dev->rxq);
+
+ /* maybe wait for deletions to finish. */
+ wait_skb_queue_empty(&dev->rxq);
+ wait_skb_queue_empty(&dev->txq);
+ wait_skb_queue_empty(&dev->done);
+ netif_dbg(dev, ifdown, dev->net,
+ "waited for %d urb completions\n", temp);
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&dev->wait, &wait);
+}
+
+int usbnet_stop (struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct driver_info *info = dev->driver_info;
+ int retval, pm, mpn;
+
+ clear_bit(EVENT_DEV_OPEN, &dev->flags);
+ netif_stop_queue (net);
+
+ netif_info(dev, ifdown, dev->net,
+ "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n",
+ net->stats.rx_packets, net->stats.tx_packets,
+ net->stats.rx_errors, net->stats.tx_errors);
+
+ /* to not race resume */
+ pm = usb_autopm_get_interface(dev->intf);
+ /* allow minidriver to stop correctly (wireless devices to turn off
+ * radio etc) */
+ if (info->stop) {
+ retval = info->stop(dev);
+ if (retval < 0)
+ netif_info(dev, ifdown, dev->net,
+ "stop fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ info->description);
+ }
+
+ if (!(info->flags & FLAG_AVOID_UNLINK_URBS))
+ usbnet_terminate_urbs(dev);
+
+ usbnet_status_stop(dev);
+
+ usbnet_purge_paused_rxq(dev);
+
+ mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags);
+
+ /* deferred work (task, timer, softirq) must also stop.
+ * can't flush_scheduled_work() until we drop rtnl (later),
+ * else workers could deadlock; so make workers a NOP.
+ */
+ dev->flags = 0;
+ del_timer_sync (&dev->delay);
+ tasklet_kill (&dev->bh);
+ if (!pm)
+ usb_autopm_put_interface(dev->intf);
+
+ if (info->manage_power && mpn)
+ info->manage_power(dev, 0);
+ else
+ usb_autopm_put_interface(dev->intf);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_stop);
+
+/*-------------------------------------------------------------------------*/
+
+// posts reads, and enables write queuing
+
+// precondition: never called in_interrupt
+
+int usbnet_open (struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ int retval;
+ struct driver_info *info = dev->driver_info;
+
+ if ((retval = usb_autopm_get_interface(dev->intf)) < 0) {
+ netif_info(dev, ifup, dev->net,
+ "resumption fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
+ goto done_nopm;
+ }
+
+ // put into "known safe" state
+ if (info->reset && (retval = info->reset (dev)) < 0) {
+ netif_info(dev, ifup, dev->net,
+ "open reset fail (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
+ goto done;
+ }
+
+ /* hard_mtu or rx_urb_size may change in reset() */
+ usbnet_update_max_qlen(dev);
+
+ // insist peer be connected
+ if (info->check_connect && (retval = info->check_connect (dev)) < 0) {
+ netif_dbg(dev, ifup, dev->net, "can't open; %d\n", retval);
+ goto done;
+ }
+
+ /* start any status interrupt transfer */
+ if (dev->interrupt) {
+ retval = usbnet_status_start(dev, GFP_KERNEL);
+ if (retval < 0) {
+ netif_err(dev, ifup, dev->net,
+ "intr submit %d\n", retval);
+ goto done;
+ }
+ }
+
+ set_bit(EVENT_DEV_OPEN, &dev->flags);
+ netif_start_queue (net);
+ netif_info(dev, ifup, dev->net,
+ "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n",
+ (int)RX_QLEN(dev), (int)TX_QLEN(dev),
+ dev->net->mtu,
+ (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" :
+ (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" :
+ (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" :
+ (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" :
+ (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" :
+ "simple");
+
+ /* reset rx error state */
+ dev->pkt_cnt = 0;
+ dev->pkt_err = 0;
+ clear_bit(EVENT_RX_KILL, &dev->flags);
+
+ // delay posting reads until we're fully open
+ tasklet_schedule (&dev->bh);
+ if (info->manage_power) {
+ retval = info->manage_power(dev, 1);
+ if (retval < 0) {
+ retval = 0;
+ set_bit(EVENT_NO_RUNTIME_PM, &dev->flags);
+ } else {
+ usb_autopm_put_interface(dev->intf);
+ }
+ }
+ return retval;
+done:
+ usb_autopm_put_interface(dev->intf);
+done_nopm:
+ return retval;
+}
+EXPORT_SYMBOL_GPL(usbnet_open);
+
+/*-------------------------------------------------------------------------*/
+
+/* ethtool methods; minidrivers may need to add some more, but
+ * they'll probably want to use this base set.
+ */
+
+int usbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ if (!dev->mii.mdio_read)
+ return -EOPNOTSUPP;
+
+ return mii_ethtool_gset(&dev->mii, cmd);
+}
+EXPORT_SYMBOL_GPL(usbnet_get_settings);
+
+int usbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd)
+{
+ struct usbnet *dev = netdev_priv(net);
+ int retval;
+
+ if (!dev->mii.mdio_write)
+ return -EOPNOTSUPP;
+
+ retval = mii_ethtool_sset(&dev->mii, cmd);
+
+ /* link speed/duplex might have changed */
+ if (dev->driver_info->link_reset)
+ dev->driver_info->link_reset(dev);
+
+ /* hard_mtu or rx_urb_size may change in link_reset() */
+ usbnet_update_max_qlen(dev);
+
+ return retval;
+
+}
+EXPORT_SYMBOL_GPL(usbnet_set_settings);
+
+u32 usbnet_get_link (struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ /* If a check_connect is defined, return its result */
+ if (dev->driver_info->check_connect)
+ return dev->driver_info->check_connect (dev) == 0;
+
+ /* if the device has mii operations, use those */
+ if (dev->mii.mdio_read)
+ return mii_link_ok(&dev->mii);
+
+ /* Otherwise, dtrt for drivers calling netif_carrier_{on,off} */
+ return ethtool_op_get_link(net);
+}
+EXPORT_SYMBOL_GPL(usbnet_get_link);
+
+int usbnet_nway_reset(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ if (!dev->mii.mdio_write)
+ return -EOPNOTSUPP;
+
+ return mii_nway_restart(&dev->mii);
+}
+EXPORT_SYMBOL_GPL(usbnet_nway_reset);
+
+void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ strlcpy (info->driver, dev->driver_name, sizeof info->driver);
+ strlcpy (info->version, DRIVER_VERSION, sizeof info->version);
+ strlcpy (info->fw_version, dev->driver_info->description,
+ sizeof info->fw_version);
+ usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
+}
+EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
+
+u32 usbnet_get_msglevel (struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return dev->msg_enable;
+}
+EXPORT_SYMBOL_GPL(usbnet_get_msglevel);
+
+void usbnet_set_msglevel (struct net_device *net, u32 level)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ dev->msg_enable = level;
+}
+EXPORT_SYMBOL_GPL(usbnet_set_msglevel);
+
+/* drivers may override default ethtool_ops in their bind() routine */
+static const struct ethtool_ops usbnet_ethtool_ops = {
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .get_link = usbnet_get_link,
+ .nway_reset = usbnet_nway_reset,
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_ts_info = ethtool_op_get_ts_info,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static void __handle_link_change(struct usbnet *dev)
+{
+ if (!test_bit(EVENT_DEV_OPEN, &dev->flags))
+ return;
+
+ if (!netif_carrier_ok(dev->net)) {
+ /* kill URBs for reading packets to save bus bandwidth */
+ unlink_urbs(dev, &dev->rxq);
+
+ /*
+ * tx_timeout will unlink URBs for sending packets and
+ * tx queue is stopped by netcore after link becomes off
+ */
+ } else {
+ /* submitting URBs for reading packets */
+ tasklet_schedule(&dev->bh);
+ }
+
+ /* hard_mtu or rx_urb_size may change during link change */
+ usbnet_update_max_qlen(dev);
+
+ clear_bit(EVENT_LINK_CHANGE, &dev->flags);
+}
+
+static void usbnet_set_rx_mode(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ usbnet_defer_kevent(dev, EVENT_SET_RX_MODE);
+}
+
+static void __handle_set_rx_mode(struct usbnet *dev)
+{
+ if (dev->driver_info->set_rx_mode)
+ (dev->driver_info->set_rx_mode)(dev);
+
+ clear_bit(EVENT_SET_RX_MODE, &dev->flags);
+}
+
+/* work that cannot be done in interrupt context uses keventd.
+ *
+ * NOTE: with 2.5 we could do more of this using completion callbacks,
+ * especially now that control transfers can be queued.
+ */
+static void
+usbnet_deferred_kevent (struct work_struct *work)
+{
+ struct usbnet *dev =
+ container_of(work, struct usbnet, kevent);
+ int status;
+
+ /* usb_clear_halt() needs a thread context */
+ if (test_bit (EVENT_TX_HALT, &dev->flags)) {
+ unlink_urbs (dev, &dev->txq);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto fail_pipe;
+ status = usb_clear_halt (dev->udev, dev->out);
+ usb_autopm_put_interface(dev->intf);
+ if (status < 0 &&
+ status != -EPIPE &&
+ status != -ESHUTDOWN) {
+ if (netif_msg_tx_err (dev))
+fail_pipe:
+ netdev_err(dev->net, "can't clear tx halt, status %d\n",
+ status);
+ } else {
+ clear_bit (EVENT_TX_HALT, &dev->flags);
+ if (status != -ESHUTDOWN)
+ netif_wake_queue (dev->net);
+ }
+ }
+ if (test_bit (EVENT_RX_HALT, &dev->flags)) {
+ unlink_urbs (dev, &dev->rxq);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto fail_halt;
+ status = usb_clear_halt (dev->udev, dev->in);
+ usb_autopm_put_interface(dev->intf);
+ if (status < 0 &&
+ status != -EPIPE &&
+ status != -ESHUTDOWN) {
+ if (netif_msg_rx_err (dev))
+fail_halt:
+ netdev_err(dev->net, "can't clear rx halt, status %d\n",
+ status);
+ } else {
+ clear_bit (EVENT_RX_HALT, &dev->flags);
+ tasklet_schedule (&dev->bh);
+ }
+ }
+
+ /* tasklet could resubmit itself forever if memory is tight */
+ if (test_bit (EVENT_RX_MEMORY, &dev->flags)) {
+ struct urb *urb = NULL;
+ int resched = 1;
+
+ if (netif_running (dev->net))
+ urb = usb_alloc_urb (0, GFP_KERNEL);
+ else
+ clear_bit (EVENT_RX_MEMORY, &dev->flags);
+ if (urb != NULL) {
+ clear_bit (EVENT_RX_MEMORY, &dev->flags);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0) {
+ usb_free_urb(urb);
+ goto fail_lowmem;
+ }
+ if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK)
+ resched = 0;
+ usb_autopm_put_interface(dev->intf);
+fail_lowmem:
+ if (resched)
+ tasklet_schedule (&dev->bh);
+ }
+ }
+
+ if (test_bit (EVENT_LINK_RESET, &dev->flags)) {
+ struct driver_info *info = dev->driver_info;
+ int retval = 0;
+
+ clear_bit (EVENT_LINK_RESET, &dev->flags);
+ status = usb_autopm_get_interface(dev->intf);
+ if (status < 0)
+ goto skip_reset;
+ if(info->link_reset && (retval = info->link_reset(dev)) < 0) {
+ usb_autopm_put_interface(dev->intf);
+skip_reset:
+ netdev_info(dev->net, "link reset failed (%d) usbnet usb-%s-%s, %s\n",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
+ } else {
+ usb_autopm_put_interface(dev->intf);
+ }
+
+ /* handle link change from link resetting */
+ __handle_link_change(dev);
+ }
+
+ if (test_bit (EVENT_LINK_CHANGE, &dev->flags))
+ __handle_link_change(dev);
+
+ if (test_bit (EVENT_SET_RX_MODE, &dev->flags))
+ __handle_set_rx_mode(dev);
+
+
+ if (dev->flags)
+ netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void tx_complete (struct urb *urb)
+{
+ struct sk_buff *skb = (struct sk_buff *) urb->context;
+ struct skb_data *entry = (struct skb_data *) skb->cb;
+ struct usbnet *dev = entry->dev;
+
+ if (urb->status == 0) {
+ dev->net->stats.tx_packets += entry->packets;
+ dev->net->stats.tx_bytes += entry->length;
+ } else {
+ dev->net->stats.tx_errors++;
+
+ switch (urb->status) {
+ case -EPIPE:
+ usbnet_defer_kevent (dev, EVENT_TX_HALT);
+ break;
+
+ /* software-driven interface shutdown */
+ case -ECONNRESET: // async unlink
+ case -ESHUTDOWN: // hardware gone
+ break;
+
+ /* like rx, tx gets controller i/o faults during hub_wq
+ * delays and so it uses the same throttling mechanism.
+ */
+ case -EPROTO:
+ case -ETIME:
+ case -EILSEQ:
+ usb_mark_last_busy(dev->udev);
+ if (!timer_pending (&dev->delay)) {
+ mod_timer (&dev->delay,
+ jiffies + THROTTLE_JIFFIES);
+ netif_dbg(dev, link, dev->net,
+ "tx throttle %d\n", urb->status);
+ }
+ netif_stop_queue (dev->net);
+ break;
+ default:
+ netif_dbg(dev, tx_err, dev->net,
+ "tx err %d\n", entry->urb->status);
+ break;
+ }
+ }
+
+ usb_autopm_put_interface_async(dev->intf);
+ (void) defer_bh(dev, skb, &dev->txq, tx_done);
+}
+
+/*-------------------------------------------------------------------------*/
+
+void usbnet_tx_timeout (struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ unlink_urbs (dev, &dev->txq);
+ tasklet_schedule (&dev->bh);
+ /* this needs to be handled individually because the generic layer
+ * doesn't know what is sufficient and could not restore private
+ * information if a remedy of an unconditional reset were used.
+ */
+ if (dev->driver_info->recover)
+ (dev->driver_info->recover)(dev);
+}
+EXPORT_SYMBOL_GPL(usbnet_tx_timeout);
+
+/*-------------------------------------------------------------------------*/
+
+static int build_dma_sg(const struct sk_buff *skb, struct urb *urb)
+{
+ unsigned num_sgs, total_len = 0;
+ int i, s = 0;
+
+ num_sgs = skb_shinfo(skb)->nr_frags + 1;
+ if (num_sgs == 1)
+ return 0;
+
+ /* reserve one for zero packet */
+ urb->sg = kmalloc((num_sgs + 1) * sizeof(struct scatterlist),
+ GFP_ATOMIC);
+ if (!urb->sg)
+ return -ENOMEM;
+
+ urb->num_sgs = num_sgs;
+ sg_init_table(urb->sg, urb->num_sgs + 1);
+
+ sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb));
+ total_len += skb_headlen(skb);
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ struct skb_frag_struct *f = &skb_shinfo(skb)->frags[i];
+
+ total_len += skb_frag_size(f);
+ sg_set_page(&urb->sg[i + s], f->page.p, f->size,
+ f->page_offset);
+ }
+ urb->transfer_buffer_length = total_len;
+
+ return 1;
+}
+
+netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
+ struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ unsigned int length;
+ struct urb *urb = NULL;
+ struct skb_data *entry;
+ struct driver_info *info = dev->driver_info;
+ unsigned long flags;
+ int retval;
+
+ if (skb)
+ skb_tx_timestamp(skb);
+
+ // some devices want funky USB-level framing, for
+ // win32 driver (usually) and/or hardware quirks
+ if (info->tx_fixup) {
+ skb = info->tx_fixup (dev, skb, GFP_ATOMIC);
+ if (!skb) {
+ /* packet collected; minidriver waiting for more */
+ if (info->flags & FLAG_MULTI_PACKET)
+ goto not_drop;
+ netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n");
+ goto drop;
+ }
+ }
+
+ if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) {
+ netif_dbg(dev, tx_err, dev->net, "no urb\n");
+ goto drop;
+ }
+
+ entry = (struct skb_data *) skb->cb;
+ entry->urb = urb;
+ entry->dev = dev;
+
+ usb_fill_bulk_urb (urb, dev->udev, dev->out,
+ skb->data, skb->len, tx_complete, skb);
+ if (dev->can_dma_sg) {
+ if (build_dma_sg(skb, urb) < 0)
+ goto drop;
+ }
+ length = urb->transfer_buffer_length;
+
+ /* don't assume the hardware handles USB_ZERO_PACKET
+ * NOTE: strictly conforming cdc-ether devices should expect
+ * the ZLP here, but ignore the one-byte packet.
+ * NOTE2: CDC NCM specification is different from CDC ECM when
+ * handling ZLP/short packets, so cdc_ncm driver will make short
+ * packet itself if needed.
+ */
+ if (length % dev->maxpacket == 0) {
+ if (!(info->flags & FLAG_SEND_ZLP)) {
+ if (!(info->flags & FLAG_MULTI_PACKET)) {
+ length++;
+ if (skb_tailroom(skb) && !urb->num_sgs) {
+ skb->data[skb->len] = 0;
+ __skb_put(skb, 1);
+ } else if (urb->num_sgs)
+ sg_set_buf(&urb->sg[urb->num_sgs++],
+ dev->padding_pkt, 1);
+ }
+ } else
+ urb->transfer_flags |= URB_ZERO_PACKET;
+ }
+ urb->transfer_buffer_length = length;
+
+ if (info->flags & FLAG_MULTI_PACKET) {
+ /* Driver has set number of packets and a length delta.
+ * Calculate the complete length and ensure that it's
+ * positive.
+ */
+ entry->length += length;
+ if (WARN_ON_ONCE(entry->length <= 0))
+ entry->length = length;
+ } else {
+ usbnet_set_skb_tx_stats(skb, 1, length);
+ }
+
+ spin_lock_irqsave(&dev->txq.lock, flags);
+ retval = usb_autopm_get_interface_async(dev->intf);
+ if (retval < 0) {
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
+ goto drop;
+ }
+
+#ifdef CONFIG_PM
+ /* if this triggers the device is still a sleep */
+ if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) {
+ /* transmission will be done in resume */
+ usb_anchor_urb(urb, &dev->deferred);
+ /* no use to process more packets */
+ netif_stop_queue(net);
+ usb_put_urb(urb);
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
+ netdev_dbg(dev->net, "Delaying transmission for resumption\n");
+ goto deferred;
+ }
+#endif
+
+ switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
+ case -EPIPE:
+ netif_stop_queue (net);
+ usbnet_defer_kevent (dev, EVENT_TX_HALT);
+ usb_autopm_put_interface_async(dev->intf);
+ break;
+ default:
+ usb_autopm_put_interface_async(dev->intf);
+ netif_dbg(dev, tx_err, dev->net,
+ "tx: submit urb err %d\n", retval);
+ break;
+ case 0:
+ net->trans_start = jiffies;
+ __usbnet_queue_skb(&dev->txq, skb, tx_start);
+ if (dev->txq.qlen >= TX_QLEN (dev))
+ netif_stop_queue (net);
+ }
+ spin_unlock_irqrestore (&dev->txq.lock, flags);
+
+ if (retval) {
+ netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval);
+drop:
+ dev->net->stats.tx_dropped++;
+not_drop:
+ if (skb)
+ dev_kfree_skb_any (skb);
+ if (urb) {
+ kfree(urb->sg);
+ usb_free_urb(urb);
+ }
+ } else
+ netif_dbg(dev, tx_queued, dev->net,
+ "> tx, len %u, type 0x%x\n", length, skb->protocol);
+#ifdef CONFIG_PM
+deferred:
+#endif
+ return NETDEV_TX_OK;
+}
+EXPORT_SYMBOL_GPL(usbnet_start_xmit);
+
+static int rx_alloc_submit(struct usbnet *dev, gfp_t flags)
+{
+ struct urb *urb;
+ int i;
+ int ret = 0;
+
+ /* don't refill the queue all at once */
+ for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) {
+ urb = usb_alloc_urb(0, flags);
+ if (urb != NULL) {
+ ret = rx_submit(dev, urb, flags);
+ if (ret)
+ goto err;
+ } else {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+err:
+ return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+
+// tasklet (work deferred from completions, in_irq) or timer
+
+static void usbnet_bh (unsigned long param)
+{
+ struct usbnet *dev = (struct usbnet *) param;
+ struct sk_buff *skb;
+ struct skb_data *entry;
+
+ while ((skb = skb_dequeue (&dev->done))) {
+ entry = (struct skb_data *) skb->cb;
+ switch (entry->state) {
+ case rx_done:
+ entry->state = rx_cleanup;
+ rx_process (dev, skb);
+ continue;
+ case tx_done:
+ kfree(entry->urb->sg);
+ case rx_cleanup:
+ usb_free_urb (entry->urb);
+ dev_kfree_skb (skb);
+ continue;
+ default:
+ netdev_dbg(dev->net, "bogus skb state %d\n", entry->state);
+ }
+ }
+
+ /* restart RX again after disabling due to high error rate */
+ clear_bit(EVENT_RX_KILL, &dev->flags);
+
+ /* waiting for all pending urbs to complete?
+ * only then can we forgo submitting anew
+ */
+ if (waitqueue_active(&dev->wait)) {
+ if (dev->txq.qlen + dev->rxq.qlen + dev->done.qlen == 0)
+ wake_up_all(&dev->wait);
+
+ // or are we maybe short a few urbs?
+ } else if (netif_running (dev->net) &&
+ netif_device_present (dev->net) &&
+ netif_carrier_ok(dev->net) &&
+ !timer_pending (&dev->delay) &&
+ !test_bit (EVENT_RX_HALT, &dev->flags)) {
+ int temp = dev->rxq.qlen;
+
+ if (temp < RX_QLEN(dev)) {
+ if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK)
+ return;
+ if (temp != dev->rxq.qlen)
+ netif_dbg(dev, link, dev->net,
+ "rxqlen %d --> %d\n",
+ temp, dev->rxq.qlen);
+ if (dev->rxq.qlen < RX_QLEN(dev))
+ tasklet_schedule (&dev->bh);
+ }
+ if (dev->txq.qlen < TX_QLEN (dev))
+ netif_wake_queue (dev->net);
+ }
+}
+
+
+/*-------------------------------------------------------------------------
+ *
+ * USB Device Driver support
+ *
+ *-------------------------------------------------------------------------*/
+
+// precondition: never called in_interrupt
+
+void usbnet_disconnect (struct usb_interface *intf)
+{
+ struct usbnet *dev;
+ struct usb_device *xdev;
+ struct net_device *net;
+
+ dev = usb_get_intfdata(intf);
+ usb_set_intfdata(intf, NULL);
+ if (!dev)
+ return;
+
+ xdev = interface_to_usbdev (intf);
+
+ netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n",
+ intf->dev.driver->name,
+ xdev->bus->bus_name, xdev->devpath,
+ dev->driver_info->description);
+
+ net = dev->net;
+ unregister_netdev (net);
+
+ cancel_work_sync(&dev->kevent);
+
+ usb_scuttle_anchored_urbs(&dev->deferred);
+
+ if (dev->driver_info->unbind)
+ dev->driver_info->unbind (dev, intf);
+
+ usb_kill_urb(dev->interrupt);
+ usb_free_urb(dev->interrupt);
+ kfree(dev->padding_pkt);
+
+ free_netdev(net);
+}
+EXPORT_SYMBOL_GPL(usbnet_disconnect);
+
+static const struct net_device_ops usbnet_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_set_rx_mode = usbnet_set_rx_mode,
+ .ndo_change_mtu = usbnet_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/*-------------------------------------------------------------------------*/
+
+// precondition: never called in_interrupt
+
+static struct device_type wlan_type = {
+ .name = "wlan",
+};
+
+static struct device_type wwan_type = {
+ .name = "wwan",
+};
+
+int
+usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
+{
+ struct usbnet *dev;
+ struct net_device *net;
+ struct usb_host_interface *interface;
+ struct driver_info *info;
+ struct usb_device *xdev;
+ int status;
+ const char *name;
+ struct usb_driver *driver = to_usb_driver(udev->dev.driver);
+
+ /* usbnet already took usb runtime pm, so have to enable the feature
+ * for usb interface, otherwise usb_autopm_get_interface may return
+ * failure if RUNTIME_PM is enabled.
+ */
+ if (!driver->supports_autosuspend) {
+ driver->supports_autosuspend = 1;
+ pm_runtime_enable(&udev->dev);
+ }
+
+ name = udev->dev.driver->name;
+ info = (struct driver_info *) prod->driver_info;
+ if (!info) {
+ dev_dbg (&udev->dev, "blacklisted by %s\n", name);
+ return -ENODEV;
+ }
+ xdev = interface_to_usbdev (udev);
+ interface = udev->cur_altsetting;
+
+ status = -ENOMEM;
+
+ // set up our own records
+ net = alloc_etherdev(sizeof(*dev));
+ if (!net)
+ goto out;
+
+ /* netdev_printk() needs this so do it as early as possible */
+ SET_NETDEV_DEV(net, &udev->dev);
+
+ dev = netdev_priv(net);
+ dev->udev = xdev;
+ dev->intf = udev;
+ dev->driver_info = info;
+ dev->driver_name = name;
+ dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
+ | NETIF_MSG_PROBE | NETIF_MSG_LINK);
+ init_waitqueue_head(&dev->wait);
+ skb_queue_head_init (&dev->rxq);
+ skb_queue_head_init (&dev->txq);
+ skb_queue_head_init (&dev->done);
+ skb_queue_head_init(&dev->rxq_pause);
+ dev->bh.func = usbnet_bh;
+ dev->bh.data = (unsigned long) dev;
+ INIT_WORK (&dev->kevent, usbnet_deferred_kevent);
+ init_usb_anchor(&dev->deferred);
+ dev->delay.function = usbnet_bh;
+ dev->delay.data = (unsigned long) dev;
+ init_timer (&dev->delay);
+ mutex_init (&dev->phy_mutex);
+ mutex_init(&dev->interrupt_mutex);
+ dev->interrupt_count = 0;
+
+ dev->net = net;
+ strcpy (net->name, "usb%d");
+ memcpy (net->dev_addr, node_id, sizeof node_id);
+
+ /* rx and tx sides can use different message sizes;
+ * bind() should set rx_urb_size in that case.
+ */
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+
+ net->netdev_ops = &usbnet_netdev_ops;
+ net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
+ net->ethtool_ops = &usbnet_ethtool_ops;
+
+ // allow device-specific bind/init procedures
+ // NOTE net->name still not usable ...
+ if (info->bind) {
+ status = info->bind (dev, udev);
+ if (status < 0)
+ goto out1;
+
+ // heuristic: "usb%d" for links we know are two-host,
+ // else "eth%d" when there's reasonable doubt. userspace
+ // can rename the link if it knows better.
+ if ((dev->driver_info->flags & FLAG_ETHER) != 0 &&
+ ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 ||
+ (net->dev_addr [0] & 0x02) == 0))
+ strcpy (net->name, "eth%d");
+ /* WLAN devices should always be named "wlan%d" */
+ if ((dev->driver_info->flags & FLAG_WLAN) != 0)
+ strcpy(net->name, "wlan%d");
+ /* WWAN devices should always be named "wwan%d" */
+ if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+ strcpy(net->name, "wwan%d");
+
+ /* devices that cannot do ARP */
+ if ((dev->driver_info->flags & FLAG_NOARP) != 0)
+ net->flags |= IFF_NOARP;
+
+ /* maybe the remote can't receive an Ethernet MTU */
+ if (net->mtu > (dev->hard_mtu - net->hard_header_len))
+ net->mtu = dev->hard_mtu - net->hard_header_len;
+ } else if (!info->in || !info->out)
+ status = usbnet_get_endpoints (dev, udev);
+ else {
+ dev->in = usb_rcvbulkpipe (xdev, info->in);
+ dev->out = usb_sndbulkpipe (xdev, info->out);
+ if (!(info->flags & FLAG_NO_SETINT))
+ status = usb_set_interface (xdev,
+ interface->desc.bInterfaceNumber,
+ interface->desc.bAlternateSetting);
+ else
+ status = 0;
+
+ }
+ if (status >= 0 && dev->status)
+ status = init_status (dev, udev);
+ if (status < 0)
+ goto out3;
+
+ if (!dev->rx_urb_size)
+ dev->rx_urb_size = dev->hard_mtu;
+ dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
+
+ /* let userspace know we have a random address */
+ if (ether_addr_equal(net->dev_addr, node_id))
+ net->addr_assign_type = NET_ADDR_RANDOM;
+
+ if ((dev->driver_info->flags & FLAG_WLAN) != 0)
+ SET_NETDEV_DEVTYPE(net, &wlan_type);
+ if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+ SET_NETDEV_DEVTYPE(net, &wwan_type);
+
+ /* initialize max rx_qlen and tx_qlen */
+ usbnet_update_max_qlen(dev);
+
+ if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) &&
+ !(info->flags & FLAG_MULTI_PACKET)) {
+ dev->padding_pkt = kzalloc(1, GFP_KERNEL);
+ if (!dev->padding_pkt) {
+ status = -ENOMEM;
+ goto out4;
+ }
+ }
+
+ status = register_netdev (net);
+ if (status)
+ goto out5;
+ netif_info(dev, probe, dev->net,
+ "register '%s' at usb-%s-%s, %s, %pM\n",
+ udev->dev.driver->name,
+ xdev->bus->bus_name, xdev->devpath,
+ dev->driver_info->description,
+ net->dev_addr);
+
+ // ok, it's ready to go.
+ usb_set_intfdata (udev, dev);
+
+ netif_device_attach (net);
+
+ if (dev->driver_info->flags & FLAG_LINK_INTR)
+ usbnet_link_change(dev, 0, 0);
+
+ return 0;
+
+out5:
+ kfree(dev->padding_pkt);
+out4:
+ usb_free_urb(dev->interrupt);
+out3:
+ if (info->unbind)
+ info->unbind (dev, udev);
+out1:
+ /* subdrivers must undo all they did in bind() if they
+ * fail it, but we may fail later and a deferred kevent
+ * may trigger an error resubmitting itself and, worse,
+ * schedule a timer. So we kill it all just in case.
+ */
+ cancel_work_sync(&dev->kevent);
+ del_timer_sync(&dev->delay);
+ free_netdev(net);
+out:
+ return status;
+}
+EXPORT_SYMBOL_GPL(usbnet_probe);
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * suspend the whole driver as soon as the first interface is suspended
+ * resume only when the last interface is resumed
+ */
+
+int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+
+ if (!dev->suspend_count++) {
+ spin_lock_irq(&dev->txq.lock);
+ /* don't autosuspend while transmitting */
+ if (dev->txq.qlen && PMSG_IS_AUTO(message)) {
+ dev->suspend_count--;
+ spin_unlock_irq(&dev->txq.lock);
+ return -EBUSY;
+ } else {
+ set_bit(EVENT_DEV_ASLEEP, &dev->flags);
+ spin_unlock_irq(&dev->txq.lock);
+ }
+ /*
+ * accelerate emptying of the rx and queues, to avoid
+ * having everything error out.
+ */
+ netif_device_detach (dev->net);
+ usbnet_terminate_urbs(dev);
+ __usbnet_status_stop_force(dev);
+
+ /*
+ * reattach so runtime management can use and
+ * wake the device
+ */
+ netif_device_attach (dev->net);
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_suspend);
+
+int usbnet_resume (struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct sk_buff *skb;
+ struct urb *res;
+ int retval;
+
+ if (!--dev->suspend_count) {
+ /* resume interrupt URB if it was previously submitted */
+ __usbnet_status_start_force(dev, GFP_NOIO);
+
+ spin_lock_irq(&dev->txq.lock);
+ while ((res = usb_get_from_anchor(&dev->deferred))) {
+
+ skb = (struct sk_buff *)res->context;
+ retval = usb_submit_urb(res, GFP_ATOMIC);
+ if (retval < 0) {
+ dev_kfree_skb_any(skb);
+ kfree(res->sg);
+ usb_free_urb(res);
+ usb_autopm_put_interface_async(dev->intf);
+ } else {
+ dev->net->trans_start = jiffies;
+ __skb_queue_tail(&dev->txq, skb);
+ }
+ }
+
+ smp_mb();
+ clear_bit(EVENT_DEV_ASLEEP, &dev->flags);
+ spin_unlock_irq(&dev->txq.lock);
+
+ if (test_bit(EVENT_DEV_OPEN, &dev->flags)) {
+ /* handle remote wakeup ASAP
+ * we cannot race against stop
+ */
+ if (netif_device_present(dev->net) &&
+ !timer_pending(&dev->delay) &&
+ !test_bit(EVENT_RX_HALT, &dev->flags))
+ rx_alloc_submit(dev, GFP_NOIO);
+
+ if (!(dev->txq.qlen >= TX_QLEN(dev)))
+ netif_tx_wake_all_queues(dev->net);
+ tasklet_schedule (&dev->bh);
+ }
+ }
+
+ if (test_and_clear_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags))
+ usb_autopm_get_interface_no_resume(intf);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_resume);
+
+/*
+ * Either a subdriver implements manage_power, then it is assumed to always
+ * be ready to be suspended or it reports the readiness to be suspended
+ * explicitly
+ */
+void usbnet_device_suggests_idle(struct usbnet *dev)
+{
+ if (!test_and_set_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) {
+ dev->intf->needs_remote_wakeup = 1;
+ usb_autopm_put_interface_async(dev->intf);
+ }
+}
+EXPORT_SYMBOL(usbnet_device_suggests_idle);
+
+/*
+ * For devices that can do without special commands
+ */
+int usbnet_manage_power(struct usbnet *dev, int on)
+{
+ dev->intf->needs_remote_wakeup = on;
+ return 0;
+}
+EXPORT_SYMBOL(usbnet_manage_power);
+
+void usbnet_link_change(struct usbnet *dev, bool link, bool need_reset)
+{
+ /* update link after link is reseted */
+ if (link && !need_reset)
+ netif_carrier_on(dev->net);
+ else
+ netif_carrier_off(dev->net);
+
+ if (need_reset && link)
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ else
+ usbnet_defer_kevent(dev, EVENT_LINK_CHANGE);
+}
+EXPORT_SYMBOL(usbnet_link_change);
+
+/*-------------------------------------------------------------------------*/
+static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, void *data, u16 size)
+{
+ void *buf = NULL;
+ int err = -ENOMEM;
+
+ netdev_dbg(dev->net, "usbnet_read_cmd cmd=0x%02x reqtype=%02x"
+ " value=0x%04x index=0x%04x size=%d\n",
+ cmd, reqtype, value, index, size);
+
+ if (data) {
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf)
+ goto out;
+ }
+
+ err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ cmd, reqtype, value, index, buf, size,
+ USB_CTRL_GET_TIMEOUT);
+ if (err > 0 && err <= size)
+ memcpy(data, buf, err);
+ kfree(buf);
+out:
+ return err;
+}
+
+static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, const void *data,
+ u16 size)
+{
+ void *buf = NULL;
+ int err = -ENOMEM;
+
+ netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x"
+ " value=0x%04x index=0x%04x size=%d\n",
+ cmd, reqtype, value, index, size);
+
+ if (data) {
+ buf = kmemdup(data, size, GFP_KERNEL);
+ if (!buf)
+ goto out;
+ }
+
+ err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ cmd, reqtype, value, index, buf, size,
+ USB_CTRL_SET_TIMEOUT);
+ kfree(buf);
+
+out:
+ return err;
+}
+
+int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
+ struct usb_interface *intf,
+ u8 *buffer,
+ int buflen)
+{
+ /* duplicates are ignored */
+ struct usb_cdc_union_desc *union_header = NULL;
+
+ /* duplicates are not tolerated */
+ struct usb_cdc_header_desc *header = NULL;
+ struct usb_cdc_ether_desc *ether = NULL;
+ struct usb_cdc_mdlm_detail_desc *detail = NULL;
+ struct usb_cdc_mdlm_desc *desc = NULL;
+
+ unsigned int elength;
+ int cnt = 0;
+
+ memset(hdr, 0x00, sizeof(struct usb_cdc_parsed_header));
+ hdr->phonet_magic_present = false;
+ while (buflen > 0) {
+ elength = buffer[0];
+ if (!elength) {
+ dev_err(&intf->dev, "skipping garbage byte\n");
+ elength = 1;
+ goto next_desc;
+ }
+ if ((buflen < elength) || (elength < 3)) {
+ dev_err(&intf->dev, "invalid descriptor buffer length\n");
+ break;
+ }
+ if (buffer[1] != USB_DT_CS_INTERFACE) {
+ dev_err(&intf->dev, "skipping garbage\n");
+ goto next_desc;
+ }
+
+ switch (buffer[2]) {
+ case USB_CDC_UNION_TYPE: /* we've found it */
+ if (elength < sizeof(struct usb_cdc_union_desc))
+ goto next_desc;
+ if (union_header) {
+ dev_err(&intf->dev, "More than one union descriptor, skipping ...\n");
+ goto next_desc;
+ }
+ union_header = (struct usb_cdc_union_desc *)buffer;
+ break;
+ case USB_CDC_COUNTRY_TYPE:
+ if (elength < sizeof(struct usb_cdc_country_functional_desc))
+ goto next_desc;
+ hdr->usb_cdc_country_functional_desc =
+ (struct usb_cdc_country_functional_desc *)buffer;
+ break;
+ case USB_CDC_HEADER_TYPE:
+ if (elength != sizeof(struct usb_cdc_header_desc))
+ goto next_desc;
+ if (header)
+ return -EINVAL;
+ header = (struct usb_cdc_header_desc *)buffer;
+ break;
+ case USB_CDC_ACM_TYPE:
+ if (elength < sizeof(struct usb_cdc_acm_descriptor))
+ goto next_desc;
+ hdr->usb_cdc_acm_descriptor =
+ (struct usb_cdc_acm_descriptor *)buffer;
+ break;
+ case USB_CDC_ETHERNET_TYPE:
+ if (elength != sizeof(struct usb_cdc_ether_desc))
+ goto next_desc;
+ if (ether)
+ return -EINVAL;
+ ether = (struct usb_cdc_ether_desc *)buffer;
+ break;
+ case USB_CDC_CALL_MANAGEMENT_TYPE:
+ if (elength < sizeof(struct usb_cdc_call_mgmt_descriptor))
+ goto next_desc;
+ hdr->usb_cdc_call_mgmt_descriptor =
+ (struct usb_cdc_call_mgmt_descriptor *)buffer;
+ break;
+ case USB_CDC_DMM_TYPE:
+ if (elength < sizeof(struct usb_cdc_dmm_desc))
+ goto next_desc;
+ hdr->usb_cdc_dmm_desc =
+ (struct usb_cdc_dmm_desc *)buffer;
+ break;
+ case USB_CDC_MDLM_TYPE:
+ if (elength < sizeof(struct usb_cdc_mdlm_desc *))
+ goto next_desc;
+ if (desc)
+ return -EINVAL;
+ desc = (struct usb_cdc_mdlm_desc *)buffer;
+ break;
+ case USB_CDC_MDLM_DETAIL_TYPE:
+ if (elength < sizeof(struct usb_cdc_mdlm_detail_desc *))
+ goto next_desc;
+ if (detail)
+ return -EINVAL;
+ detail = (struct usb_cdc_mdlm_detail_desc *)buffer;
+ break;
+ case USB_CDC_NCM_TYPE:
+ if (elength < sizeof(struct usb_cdc_ncm_desc))
+ goto next_desc;
+ hdr->usb_cdc_ncm_desc = (struct usb_cdc_ncm_desc *)buffer;
+ break;
+ case USB_CDC_MBIM_TYPE:
+ if (elength < sizeof(struct usb_cdc_mbim_desc))
+ goto next_desc;
+
+ hdr->usb_cdc_mbim_desc = (struct usb_cdc_mbim_desc *)buffer;
+ break;
+ case USB_CDC_MBIM_EXTENDED_TYPE:
+ if (elength < sizeof(struct usb_cdc_mbim_extended_desc))
+ break;
+ hdr->usb_cdc_mbim_extended_desc =
+ (struct usb_cdc_mbim_extended_desc *)buffer;
+ break;
+ case CDC_PHONET_MAGIC_NUMBER:
+ hdr->phonet_magic_present = true;
+ break;
+ default:
+ /*
+ * there are LOTS more CDC descriptors that
+ * could legitimately be found here.
+ */
+ dev_dbg(&intf->dev, "Ignoring descriptor: type %02x, length %ud\n",
+ buffer[2], elength);
+ goto next_desc;
+ }
+ cnt++;
+next_desc:
+ buflen -= elength;
+ buffer += elength;
+ }
+ hdr->usb_cdc_union_desc = union_header;
+ hdr->usb_cdc_header_desc = header;
+ hdr->usb_cdc_mdlm_detail_desc = detail;
+ hdr->usb_cdc_mdlm_desc = desc;
+ hdr->usb_cdc_ether_desc = ether;
+ return cnt;
+}
+
+EXPORT_SYMBOL(cdc_parse_cdc_header);
+
+/*
+ * The function can't be called inside suspend/resume callback,
+ * otherwise deadlock will be caused.
+ */
+int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, void *data, u16 size)
+{
+ int ret;
+
+ if (usb_autopm_get_interface(dev->intf) < 0)
+ return -ENODEV;
+ ret = __usbnet_read_cmd(dev, cmd, reqtype, value, index,
+ data, size);
+ usb_autopm_put_interface(dev->intf);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(usbnet_read_cmd);
+
+/*
+ * The function can't be called inside suspend/resume callback,
+ * otherwise deadlock will be caused.
+ */
+int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, const void *data, u16 size)
+{
+ int ret;
+
+ if (usb_autopm_get_interface(dev->intf) < 0)
+ return -ENODEV;
+ ret = __usbnet_write_cmd(dev, cmd, reqtype, value, index,
+ data, size);
+ usb_autopm_put_interface(dev->intf);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(usbnet_write_cmd);
+
+/*
+ * The function can be called inside suspend/resume callback safely
+ * and should only be called by suspend/resume callback generally.
+ */
+int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, void *data, u16 size)
+{
+ return __usbnet_read_cmd(dev, cmd, reqtype, value, index,
+ data, size);
+}
+EXPORT_SYMBOL_GPL(usbnet_read_cmd_nopm);
+
+/*
+ * The function can be called inside suspend/resume callback safely
+ * and should only be called by suspend/resume callback generally.
+ */
+int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, const void *data,
+ u16 size)
+{
+ return __usbnet_write_cmd(dev, cmd, reqtype, value, index,
+ data, size);
+}
+EXPORT_SYMBOL_GPL(usbnet_write_cmd_nopm);
+
+static void usbnet_async_cmd_cb(struct urb *urb)
+{
+ struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
+ int status = urb->status;
+
+ if (status < 0)
+ dev_dbg(&urb->dev->dev, "%s failed with %d",
+ __func__, status);
+
+ kfree(req);
+ usb_free_urb(urb);
+}
+
+/*
+ * The caller must make sure that device can't be put into suspend
+ * state until the control URB completes.
+ */
+int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, const void *data, u16 size)
+{
+ struct usb_ctrlrequest *req = NULL;
+ struct urb *urb;
+ int err = -ENOMEM;
+ void *buf = NULL;
+
+ netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x"
+ " value=0x%04x index=0x%04x size=%d\n",
+ cmd, reqtype, value, index, size);
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ netdev_err(dev->net, "Error allocating URB in"
+ " %s!\n", __func__);
+ goto fail;
+ }
+
+ if (data) {
+ buf = kmemdup(data, size, GFP_ATOMIC);
+ if (!buf) {
+ netdev_err(dev->net, "Error allocating buffer"
+ " in %s!\n", __func__);
+ goto fail_free;
+ }
+ }
+
+ req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
+ if (!req)
+ goto fail_free_buf;
+
+ req->bRequestType = reqtype;
+ req->bRequest = cmd;
+ req->wValue = cpu_to_le16(value);
+ req->wIndex = cpu_to_le16(index);
+ req->wLength = cpu_to_le16(size);
+
+ usb_fill_control_urb(urb, dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ (void *)req, buf, size,
+ usbnet_async_cmd_cb, req);
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ netdev_err(dev->net, "Error submitting the control"
+ " message: status=%d\n", err);
+ goto fail_free;
+ }
+ return 0;
+
+fail_free_buf:
+ kfree(buf);
+fail_free:
+ kfree(req);
+ usb_free_urb(urb);
+fail:
+ return err;
+
+}
+EXPORT_SYMBOL_GPL(usbnet_write_cmd_async);
+/*-------------------------------------------------------------------------*/
+
+static int __init usbnet_init(void)
+{
+ /* Compiler should optimize this out. */
+ BUILD_BUG_ON(
+ FIELD_SIZEOF(struct sk_buff, cb) < sizeof(struct skb_data));
+
+ eth_random_addr(node_id);
+ return 0;
+}
+module_init(usbnet_init);
+
+static void __exit usbnet_exit(void)
+{
+}
+module_exit(usbnet_exit);
+
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("USB network driver framework");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
new file mode 100644
index 0000000..6aaa6eb
--- /dev/null
+++ b/drivers/net/usb/zaurus.c
@@ -0,0 +1,385 @@
+/*
+ * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
+ * Copyright (C) 2002-2005 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+// #define DEBUG // error path messages, extra info
+// #define VERBOSE // more; success messages
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/workqueue.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+
+
+/*
+ * All known Zaurii lie about their standards conformance. At least
+ * the earliest SA-1100 models lie by saying they support CDC Ethernet.
+ * Some later models (especially PXA-25x and PXA-27x based ones) lie
+ * and say they support CDC MDLM (for access to cell phone modems).
+ *
+ * There are non-Zaurus products that use these same protocols too.
+ *
+ * The annoying thing is that at the same time Sharp was developing
+ * that annoying standards-breaking software, the Linux community had
+ * a simple "CDC Subset" working reliably on the same SA-1100 hardware.
+ * That is, the same functionality but not violating standards.
+ *
+ * The CDC Ethernet nonconformance points are troublesome to hosts
+ * with a true CDC Ethernet implementation:
+ * - Framing appends a CRC, which the spec says drivers "must not" do;
+ * - Transfers data in altsetting zero, instead of altsetting 1;
+ * - All these peripherals use the same ethernet address.
+ *
+ * The CDC MDLM nonconformance is less immediately troublesome, since all
+ * MDLM implementations are quasi-proprietary anyway.
+ */
+
+static struct sk_buff *
+zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ int padlen;
+ struct sk_buff *skb2;
+
+ padlen = 2;
+ if (!skb_cloned(skb)) {
+ int tailroom = skb_tailroom(skb);
+ if ((padlen + 4) <= tailroom)
+ goto done;
+ }
+ skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (skb) {
+ u32 fcs;
+done:
+ fcs = crc32_le(~0, skb->data, skb->len);
+ fcs = ~fcs;
+
+ *skb_put (skb, 1) = fcs & 0xff;
+ *skb_put (skb, 1) = (fcs>> 8) & 0xff;
+ *skb_put (skb, 1) = (fcs>>16) & 0xff;
+ *skb_put (skb, 1) = (fcs>>24) & 0xff;
+ }
+ return skb;
+}
+
+static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ /* Belcarra's funky framing has other options; mostly
+ * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes.
+ */
+ dev->net->hard_header_len += 6;
+ dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu;
+ return usbnet_generic_cdc_bind(dev, intf);
+}
+
+/* PDA style devices are always connected if present */
+static int always_connected (struct usbnet *dev)
+{
+ return 0;
+}
+
+static const struct driver_info zaurus_sl5x00_info = {
+ .description = "Sharp Zaurus SL-5x00",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
+ .check_connect = always_connected,
+ .bind = zaurus_bind,
+ .unbind = usbnet_cdc_unbind,
+ .tx_fixup = zaurus_tx_fixup,
+};
+#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info)
+
+static const struct driver_info zaurus_pxa_info = {
+ .description = "Sharp Zaurus, PXA-2xx based",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
+ .check_connect = always_connected,
+ .bind = zaurus_bind,
+ .unbind = usbnet_cdc_unbind,
+ .tx_fixup = zaurus_tx_fixup,
+};
+#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info)
+
+static const struct driver_info olympus_mxl_info = {
+ .description = "Olympus R1000",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
+ .check_connect = always_connected,
+ .bind = zaurus_bind,
+ .unbind = usbnet_cdc_unbind,
+ .tx_fixup = zaurus_tx_fixup,
+};
+#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info)
+
+
+/* Some more recent products using Lineo/Belcarra code will wrongly claim
+ * CDC MDLM conformance. They aren't conformant: data endpoints live
+ * in the control interface, there's no data interface, and it's not used
+ * to talk to a cell phone radio. But at least we can detect these two
+ * pseudo-classes, rather than growing this product list with entries for
+ * each new nonconformant product (sigh).
+ */
+static const u8 safe_guid[16] = {
+ 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
+ 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
+};
+static const u8 blan_guid[16] = {
+ 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
+ 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
+};
+
+static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ u8 *buf = intf->cur_altsetting->extra;
+ int len = intf->cur_altsetting->extralen;
+ struct usb_cdc_mdlm_desc *desc = NULL;
+ struct usb_cdc_mdlm_detail_desc *detail = NULL;
+
+ while (len > 3) {
+ if (buf [1] != USB_DT_CS_INTERFACE)
+ goto next_desc;
+
+ /* use bDescriptorSubType, and just verify that we get a
+ * "BLAN" (or "SAFE") descriptor.
+ */
+ switch (buf [2]) {
+ case USB_CDC_MDLM_TYPE:
+ if (desc) {
+ dev_dbg(&intf->dev, "extra MDLM\n");
+ goto bad_desc;
+ }
+ desc = (void *) buf;
+ if (desc->bLength != sizeof *desc) {
+ dev_dbg(&intf->dev, "MDLM len %u\n",
+ desc->bLength);
+ goto bad_desc;
+ }
+ /* expect bcdVersion 1.0, ignore */
+ if (memcmp(&desc->bGUID, blan_guid, 16) &&
+ memcmp(&desc->bGUID, safe_guid, 16)) {
+ /* hey, this one might _really_ be MDLM! */
+ dev_dbg(&intf->dev, "MDLM guid\n");
+ goto bad_desc;
+ }
+ break;
+ case USB_CDC_MDLM_DETAIL_TYPE:
+ if (detail) {
+ dev_dbg(&intf->dev, "extra MDLM detail\n");
+ goto bad_desc;
+ }
+ detail = (void *) buf;
+ switch (detail->bGuidDescriptorType) {
+ case 0: /* "SAFE" */
+ if (detail->bLength != (sizeof *detail + 2))
+ goto bad_detail;
+ break;
+ case 1: /* "BLAN" */
+ if (detail->bLength != (sizeof *detail + 3))
+ goto bad_detail;
+ break;
+ default:
+ goto bad_detail;
+ }
+
+ /* assuming we either noticed BLAN already, or will
+ * find it soon, there are some data bytes here:
+ * - bmNetworkCapabilities (unused)
+ * - bmDataCapabilities (bits, see below)
+ * - bPad (ignored, for PADAFTER -- BLAN-only)
+ * bits are:
+ * - 0x01 -- Zaurus framing (add CRC)
+ * - 0x02 -- PADBEFORE (CRC includes some padding)
+ * - 0x04 -- PADAFTER (some padding after CRC)
+ * - 0x08 -- "fermat" packet mangling (for hw bugs)
+ * the PADBEFORE appears not to matter; we interop
+ * with devices that use it and those that don't.
+ */
+ if ((detail->bDetailData[1] & ~0x02) != 0x01) {
+ /* bmDataCapabilities == 0 would be fine too,
+ * but framing is minidriver-coupled for now.
+ */
+bad_detail:
+ dev_dbg(&intf->dev,
+ "bad MDLM detail, %d %d %d\n",
+ detail->bLength,
+ detail->bDetailData[0],
+ detail->bDetailData[2]);
+ goto bad_desc;
+ }
+
+ /* same extra framing as for non-BLAN mode */
+ dev->net->hard_header_len += 6;
+ dev->rx_urb_size = dev->net->hard_header_len
+ + dev->net->mtu;
+ break;
+ }
+next_desc:
+ len -= buf [0]; /* bLength */
+ buf += buf [0];
+ }
+
+ if (!desc || !detail) {
+ dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
+ desc ? "" : "func ",
+ detail ? "" : "detail ");
+ goto bad_desc;
+ }
+
+ /* There's probably a CDC Ethernet descriptor there, but we can't
+ * rely on the Ethernet address it provides since not all vendors
+ * bother to make it unique. Likewise there's no point in tracking
+ * of the CDC event notifications.
+ */
+ return usbnet_get_endpoints(dev, intf);
+
+bad_desc:
+ dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n");
+ return -ENODEV;
+}
+
+static const struct driver_info bogus_mdlm_info = {
+ .description = "pseudo-MDLM (BLAN) device",
+ .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
+ .check_connect = always_connected,
+ .tx_fixup = zaurus_tx_fixup,
+ .bind = blan_mdlm_bind,
+};
+
+static const struct usb_device_id products [] = {
+#define ZAURUS_MASTER_INTERFACE \
+ .bInterfaceClass = USB_CLASS_COMM, \
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE
+
+/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8004,
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_STRONGARM_INFO,
+},
+
+/* PXA-2xx based models are also lying-about-cdc. If you add any
+ * more devices that claim to be CDC Ethernet, make sure they get
+ * added to the blacklist in cdc_ether too.
+ *
+ * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries,
+ * unlike the older ones with 2.4 "embedix" kernels.
+ */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8005, /* A-300 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8006, /* B-500/SL-5600 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x8007, /* C-700 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9031, /* C-750 C-760 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+}, {
+ /* C-750/C-760/C-860/SL-C3000 PDA in MDLM mode */
+ USB_DEVICE_AND_INTERFACE_INFO(0x04DD, 0x9031, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &bogus_mdlm_info,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9032, /* SL-6000 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ /* reported with some C860 units */
+ .idProduct = 0x9050, /* C-860 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = ZAURUS_PXA_INFO,
+},
+{
+ /* Motorola Rokr E6 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6027, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &bogus_mdlm_info,
+}, {
+ /* Motorola MOTOMAGX phones */
+ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &bogus_mdlm_info,
+},
+
+/* Olympus has some models with a Zaurus-compatible option.
+ * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
+ */
+{
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x07B4,
+ .idProduct = 0x0F02, /* R-1000 */
+ ZAURUS_MASTER_INTERFACE,
+ .driver_info = OLYMPUS_MXL_INFO,
+},
+
+/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
+{
+ USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &bogus_mdlm_info,
+},
+ { }, // END
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver zaurus_driver = {
+ .name = "zaurus",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .disconnect = usbnet_disconnect,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(zaurus_driver);
+
+MODULE_AUTHOR("Pavel Machek, David Brownell");
+MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products");
+MODULE_LICENSE("GPL");