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/sound/oss/waveartist.c b/sound/oss/waveartist.c
new file mode 100644
index 0000000..b36ea47
--- /dev/null
+++ b/sound/oss/waveartist.c
@@ -0,0 +1,2045 @@
+/*
+ * linux/sound/oss/waveartist.c
+ *
+ * The low level driver for the RWA010 Rockwell Wave Artist
+ * codec chip used in the Rebel.com NetWinder.
+ *
+ * Cleaned up and integrated into 2.1 by Russell King (rmk@arm.linux.org.uk)
+ * and Pat Beirne (patb@corel.ca)
+ *
+ *
+ * Copyright (C) by Rebel.com 1998-1999
+ *
+ * RWA010 specs received under NDA from Rockwell
+ *
+ * Copyright (C) by Hannu Savolainen 1993-1997
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ *
+ * Changes:
+ * 11-10-2000 Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
+ * Added __init to waveartist_init()
+ */
+
+/* Debugging */
+#define DEBUG_CMD 1
+#define DEBUG_OUT 2
+#define DEBUG_IN 4
+#define DEBUG_INTR 8
+#define DEBUG_MIXER 16
+#define DEBUG_TRIGGER 32
+
+#define debug_flg (0)
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+
+
+#include "sound_config.h"
+#include "waveartist.h"
+
+#ifdef CONFIG_ARM
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#endif
+
+#ifndef NO_DMA
+#define NO_DMA 255
+#endif
+
+#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_SYNTH |\
+ SOUND_MASK_PCM |\
+ SOUND_MASK_LINE |\
+ SOUND_MASK_MIC |\
+ SOUND_MASK_LINE1 |\
+ SOUND_MASK_RECLEV |\
+ SOUND_MASK_VOLUME |\
+ SOUND_MASK_IMIX)
+
+static unsigned short levels[SOUND_MIXER_NRDEVICES] = {
+ 0x5555, /* Master Volume */
+ 0x0000, /* Bass */
+ 0x0000, /* Treble */
+ 0x2323, /* Synth (FM) */
+ 0x4b4b, /* PCM */
+ 0x6464, /* PC Speaker */
+ 0x0000, /* Ext Line */
+ 0x0000, /* Mic */
+ 0x0000, /* CD */
+ 0x6464, /* Recording monitor */
+ 0x0000, /* SB PCM (ALT PCM) */
+ 0x0000, /* Recording level */
+ 0x6464, /* Input gain */
+ 0x6464, /* Output gain */
+ 0x0000, /* Line1 (Aux1) */
+ 0x0000, /* Line2 (Aux2) */
+ 0x0000, /* Line3 (Aux3) */
+ 0x0000, /* Digital1 */
+ 0x0000, /* Digital2 */
+ 0x0000, /* Digital3 */
+ 0x0000, /* Phone In */
+ 0x6464, /* Phone Out */
+ 0x0000, /* Video */
+ 0x0000, /* Radio */
+ 0x0000 /* Monitor */
+};
+
+struct wavnc_info {
+ struct address_info hw; /* hardware */
+ char *chip_name;
+
+ int xfer_count;
+ int audio_mode;
+ int open_mode;
+ int audio_flags;
+ int record_dev;
+ int playback_dev;
+ int dev_no;
+
+ /* Mixer parameters */
+ const struct waveartist_mixer_info *mix;
+
+ unsigned short *levels; /* cache of volume settings */
+ int recmask; /* currently enabled recording device! */
+
+#ifdef CONFIG_ARCH_NETWINDER
+ signed int slider_vol; /* hardware slider volume */
+ unsigned int handset_detect :1;
+ unsigned int telephone_detect:1;
+ unsigned int no_autoselect :1;/* handset/telephone autoselects a path */
+ unsigned int spkr_mute_state :1;/* set by ioctl or autoselect */
+ unsigned int line_mute_state :1;/* set by ioctl or autoselect */
+ unsigned int use_slider :1;/* use slider setting for o/p vol */
+#endif
+};
+
+/*
+ * This is the implementation specific mixer information.
+ */
+struct waveartist_mixer_info {
+ unsigned int supported_devs; /* Supported devices */
+ unsigned int recording_devs; /* Recordable devies */
+ unsigned int stereo_devs; /* Stereo devices */
+
+ unsigned int (*select_input)(struct wavnc_info *, unsigned int,
+ unsigned char *, unsigned char *);
+ int (*decode_mixer)(struct wavnc_info *, int,
+ unsigned char, unsigned char);
+ int (*get_mixer)(struct wavnc_info *, int);
+};
+
+struct wavnc_port_info {
+ int open_mode;
+ int speed;
+ int channels;
+ int audio_format;
+};
+
+static int nr_waveartist_devs;
+static struct wavnc_info adev_info[MAX_AUDIO_DEV];
+static DEFINE_SPINLOCK(waveartist_lock);
+
+#ifndef CONFIG_ARCH_NETWINDER
+#define machine_is_netwinder() 0
+#else
+static struct timer_list vnc_timer;
+static void vnc_configure_mixer(struct wavnc_info *devc,
+ unsigned int input_mask);
+static int vnc_private_ioctl(int dev, unsigned int cmd, int __user *arg);
+static void vnc_slider_tick(unsigned long data);
+#endif
+
+static inline void
+waveartist_set_ctlr(struct address_info *hw, unsigned char clear, unsigned char set)
+{
+ unsigned int ctlr_port = hw->io_base + CTLR;
+
+ clear = ~clear & inb(ctlr_port);
+
+ outb(clear | set, ctlr_port);
+}
+
+/* Toggle IRQ acknowledge line
+ */
+static inline void
+waveartist_iack(struct wavnc_info *devc)
+{
+ unsigned int ctlr_port = devc->hw.io_base + CTLR;
+ int old_ctlr;
+
+ old_ctlr = inb(ctlr_port) & ~IRQ_ACK;
+
+ outb(old_ctlr | IRQ_ACK, ctlr_port);
+ outb(old_ctlr, ctlr_port);
+}
+
+static inline int
+waveartist_sleep(int timeout_ms)
+{
+ unsigned int timeout = msecs_to_jiffies(timeout_ms*100);
+ return schedule_timeout_interruptible(timeout);
+}
+
+static int
+waveartist_reset(struct wavnc_info *devc)
+{
+ struct address_info *hw = &devc->hw;
+ unsigned int timeout, res = -1;
+
+ waveartist_set_ctlr(hw, -1, RESET);
+ waveartist_sleep(2);
+ waveartist_set_ctlr(hw, RESET, 0);
+
+ timeout = 500;
+ do {
+ mdelay(2);
+
+ if (inb(hw->io_base + STATR) & CMD_RF) {
+ res = inw(hw->io_base + CMDR);
+ if (res == 0x55aa)
+ break;
+ }
+ } while (--timeout);
+
+ if (timeout == 0) {
+ printk(KERN_WARNING "WaveArtist: reset timeout ");
+ if (res != (unsigned int)-1)
+ printk("(res=%04X)", res);
+ printk("\n");
+ return 1;
+ }
+ return 0;
+}
+
+/* Helper function to send and receive words
+ * from WaveArtist. It handles all the handshaking
+ * and can send or receive multiple words.
+ */
+static int
+waveartist_cmd(struct wavnc_info *devc,
+ int nr_cmd, unsigned int *cmd,
+ int nr_resp, unsigned int *resp)
+{
+ unsigned int io_base = devc->hw.io_base;
+ unsigned int timed_out = 0;
+ unsigned int i;
+
+ if (debug_flg & DEBUG_CMD) {
+ printk("waveartist_cmd: cmd=");
+
+ for (i = 0; i < nr_cmd; i++)
+ printk("%04X ", cmd[i]);
+
+ printk("\n");
+ }
+
+ if (inb(io_base + STATR) & CMD_RF) {
+ int old_data;
+
+ /* flush the port
+ */
+
+ old_data = inw(io_base + CMDR);
+
+ if (debug_flg & DEBUG_CMD)
+ printk("flushed %04X...", old_data);
+
+ udelay(10);
+ }
+
+ for (i = 0; !timed_out && i < nr_cmd; i++) {
+ int count;
+
+ for (count = 5000; count; count--)
+ if (inb(io_base + STATR) & CMD_WE)
+ break;
+
+ if (!count)
+ timed_out = 1;
+ else
+ outw(cmd[i], io_base + CMDR);
+ }
+
+ for (i = 0; !timed_out && i < nr_resp; i++) {
+ int count;
+
+ for (count = 5000; count; count--)
+ if (inb(io_base + STATR) & CMD_RF)
+ break;
+
+ if (!count)
+ timed_out = 1;
+ else
+ resp[i] = inw(io_base + CMDR);
+ }
+
+ if (debug_flg & DEBUG_CMD) {
+ if (!timed_out) {
+ printk("waveartist_cmd: resp=");
+
+ for (i = 0; i < nr_resp; i++)
+ printk("%04X ", resp[i]);
+
+ printk("\n");
+ } else
+ printk("waveartist_cmd: timed out\n");
+ }
+
+ return timed_out ? 1 : 0;
+}
+
+/*
+ * Send one command word
+ */
+static inline int
+waveartist_cmd1(struct wavnc_info *devc, unsigned int cmd)
+{
+ return waveartist_cmd(devc, 1, &cmd, 0, NULL);
+}
+
+/*
+ * Send one command, receive one word
+ */
+static inline unsigned int
+waveartist_cmd1_r(struct wavnc_info *devc, unsigned int cmd)
+{
+ unsigned int ret;
+
+ waveartist_cmd(devc, 1, &cmd, 1, &ret);
+
+ return ret;
+}
+
+/*
+ * Send a double command, receive one
+ * word (and throw it away)
+ */
+static inline int
+waveartist_cmd2(struct wavnc_info *devc, unsigned int cmd, unsigned int arg)
+{
+ unsigned int vals[2];
+
+ vals[0] = cmd;
+ vals[1] = arg;
+
+ return waveartist_cmd(devc, 2, vals, 1, vals);
+}
+
+/*
+ * Send a triple command
+ */
+static inline int
+waveartist_cmd3(struct wavnc_info *devc, unsigned int cmd,
+ unsigned int arg1, unsigned int arg2)
+{
+ unsigned int vals[3];
+
+ vals[0] = cmd;
+ vals[1] = arg1;
+ vals[2] = arg2;
+
+ return waveartist_cmd(devc, 3, vals, 0, NULL);
+}
+
+static int
+waveartist_getrev(struct wavnc_info *devc, char *rev)
+{
+ unsigned int temp[2];
+ unsigned int cmd = WACMD_GETREV;
+
+ waveartist_cmd(devc, 1, &cmd, 2, temp);
+
+ rev[0] = temp[0] >> 8;
+ rev[1] = temp[0] & 255;
+ rev[2] = '\0';
+
+ return temp[0];
+}
+
+static void waveartist_halt_output(int dev);
+static void waveartist_halt_input(int dev);
+static void waveartist_halt(int dev);
+static void waveartist_trigger(int dev, int state);
+
+static int
+waveartist_open(int dev, int mode)
+{
+ struct wavnc_info *devc;
+ struct wavnc_port_info *portc;
+ unsigned long flags;
+
+ if (dev < 0 || dev >= num_audiodevs)
+ return -ENXIO;
+
+ devc = (struct wavnc_info *) audio_devs[dev]->devc;
+ portc = (struct wavnc_port_info *) audio_devs[dev]->portc;
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+ if (portc->open_mode || (devc->open_mode & mode)) {
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+ return -EBUSY;
+ }
+
+ devc->audio_mode = 0;
+ devc->open_mode |= mode;
+ portc->open_mode = mode;
+ waveartist_trigger(dev, 0);
+
+ if (mode & OPEN_READ)
+ devc->record_dev = dev;
+ if (mode & OPEN_WRITE)
+ devc->playback_dev = dev;
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+
+ return 0;
+}
+
+static void
+waveartist_close(int dev)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ waveartist_halt(dev);
+
+ devc->audio_mode = 0;
+ devc->open_mode &= ~portc->open_mode;
+ portc->open_mode = 0;
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static void
+waveartist_output_block(int dev, unsigned long buf, int __count, int intrflag)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ unsigned long flags;
+ unsigned int count = __count;
+
+ if (debug_flg & DEBUG_OUT)
+ printk("waveartist: output block, buf=0x%lx, count=0x%x...\n",
+ buf, count);
+ /*
+ * 16 bit data
+ */
+ if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE))
+ count >>= 1;
+
+ if (portc->channels > 1)
+ count >>= 1;
+
+ count -= 1;
+
+ if (devc->audio_mode & PCM_ENABLE_OUTPUT &&
+ audio_devs[dev]->flags & DMA_AUTOMODE &&
+ intrflag &&
+ count == devc->xfer_count) {
+ devc->audio_mode |= PCM_ENABLE_OUTPUT;
+ return; /*
+ * Auto DMA mode on. No need to react
+ */
+ }
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ /*
+ * set sample count
+ */
+ waveartist_cmd2(devc, WACMD_OUTPUTSIZE, count);
+
+ devc->xfer_count = count;
+ devc->audio_mode |= PCM_ENABLE_OUTPUT;
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static void
+waveartist_start_input(int dev, unsigned long buf, int __count, int intrflag)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ unsigned long flags;
+ unsigned int count = __count;
+
+ if (debug_flg & DEBUG_IN)
+ printk("waveartist: start input, buf=0x%lx, count=0x%x...\n",
+ buf, count);
+
+ if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */
+ count >>= 1;
+
+ if (portc->channels > 1)
+ count >>= 1;
+
+ count -= 1;
+
+ if (devc->audio_mode & PCM_ENABLE_INPUT &&
+ audio_devs[dev]->flags & DMA_AUTOMODE &&
+ intrflag &&
+ count == devc->xfer_count) {
+ devc->audio_mode |= PCM_ENABLE_INPUT;
+ return; /*
+ * Auto DMA mode on. No need to react
+ */
+ }
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ /*
+ * set sample count
+ */
+ waveartist_cmd2(devc, WACMD_INPUTSIZE, count);
+
+ devc->xfer_count = count;
+ devc->audio_mode |= PCM_ENABLE_INPUT;
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static int
+waveartist_ioctl(int dev, unsigned int cmd, void __user * arg)
+{
+ return -EINVAL;
+}
+
+static unsigned int
+waveartist_get_speed(struct wavnc_port_info *portc)
+{
+ unsigned int speed;
+
+ /*
+ * program the speed, channels, bits
+ */
+ if (portc->speed == 8000)
+ speed = 0x2E71;
+ else if (portc->speed == 11025)
+ speed = 0x4000;
+ else if (portc->speed == 22050)
+ speed = 0x8000;
+ else if (portc->speed == 44100)
+ speed = 0x0;
+ else {
+ /*
+ * non-standard - just calculate
+ */
+ speed = portc->speed << 16;
+
+ speed = (speed / 44100) & 65535;
+ }
+
+ return speed;
+}
+
+static unsigned int
+waveartist_get_bits(struct wavnc_port_info *portc)
+{
+ unsigned int bits;
+
+ if (portc->audio_format == AFMT_S16_LE)
+ bits = 1;
+ else if (portc->audio_format == AFMT_S8)
+ bits = 0;
+ else
+ bits = 2; //default AFMT_U8
+
+ return bits;
+}
+
+static int
+waveartist_prepare_for_input(int dev, int bsize, int bcount)
+{
+ unsigned long flags;
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ unsigned int speed, bits;
+
+ if (devc->audio_mode)
+ return 0;
+
+ speed = waveartist_get_speed(portc);
+ bits = waveartist_get_bits(portc);
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits))
+ printk(KERN_WARNING "waveartist: error setting the "
+ "record format to %d\n", portc->audio_format);
+
+ if (waveartist_cmd2(devc, WACMD_INPUTCHANNELS, portc->channels))
+ printk(KERN_WARNING "waveartist: error setting record "
+ "to %d channels\n", portc->channels);
+
+ /*
+ * write cmd SetSampleSpeedTimeConstant
+ */
+ if (waveartist_cmd2(devc, WACMD_INPUTSPEED, speed))
+ printk(KERN_WARNING "waveartist: error setting the record "
+ "speed to %dHz.\n", portc->speed);
+
+ if (waveartist_cmd2(devc, WACMD_INPUTDMA, 1))
+ printk(KERN_WARNING "waveartist: error setting the record "
+ "data path to 0x%X\n", 1);
+
+ if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits))
+ printk(KERN_WARNING "waveartist: error setting the record "
+ "format to %d\n", portc->audio_format);
+
+ devc->xfer_count = 0;
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+ waveartist_halt_input(dev);
+
+ if (debug_flg & DEBUG_INTR) {
+ printk("WA CTLR reg: 0x%02X.\n",
+ inb(devc->hw.io_base + CTLR));
+ printk("WA STAT reg: 0x%02X.\n",
+ inb(devc->hw.io_base + STATR));
+ printk("WA IRQS reg: 0x%02X.\n",
+ inb(devc->hw.io_base + IRQSTAT));
+ }
+
+ return 0;
+}
+
+static int
+waveartist_prepare_for_output(int dev, int bsize, int bcount)
+{
+ unsigned long flags;
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ unsigned int speed, bits;
+
+ /*
+ * program the speed, channels, bits
+ */
+ speed = waveartist_get_speed(portc);
+ bits = waveartist_get_bits(portc);
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ if (waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed) &&
+ waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed))
+ printk(KERN_WARNING "waveartist: error setting the playback "
+ "speed to %dHz.\n", portc->speed);
+
+ if (waveartist_cmd2(devc, WACMD_OUTPUTCHANNELS, portc->channels))
+ printk(KERN_WARNING "waveartist: error setting the playback "
+ "to %d channels\n", portc->channels);
+
+ if (waveartist_cmd2(devc, WACMD_OUTPUTDMA, 0))
+ printk(KERN_WARNING "waveartist: error setting the playback "
+ "data path to 0x%X\n", 0);
+
+ if (waveartist_cmd2(devc, WACMD_OUTPUTFORMAT, bits))
+ printk(KERN_WARNING "waveartist: error setting the playback "
+ "format to %d\n", portc->audio_format);
+
+ devc->xfer_count = 0;
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+ waveartist_halt_output(dev);
+
+ if (debug_flg & DEBUG_INTR) {
+ printk("WA CTLR reg: 0x%02X.\n",inb(devc->hw.io_base + CTLR));
+ printk("WA STAT reg: 0x%02X.\n",inb(devc->hw.io_base + STATR));
+ printk("WA IRQS reg: 0x%02X.\n",inb(devc->hw.io_base + IRQSTAT));
+ }
+
+ return 0;
+}
+
+static void
+waveartist_halt(int dev)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ struct wavnc_info *devc;
+
+ if (portc->open_mode & OPEN_WRITE)
+ waveartist_halt_output(dev);
+
+ if (portc->open_mode & OPEN_READ)
+ waveartist_halt_input(dev);
+
+ devc = (struct wavnc_info *) audio_devs[dev]->devc;
+ devc->audio_mode = 0;
+}
+
+static void
+waveartist_halt_input(int dev)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ /*
+ * Stop capture
+ */
+ waveartist_cmd1(devc, WACMD_INPUTSTOP);
+
+ devc->audio_mode &= ~PCM_ENABLE_INPUT;
+
+ /*
+ * Clear interrupt by toggling
+ * the IRQ_ACK bit in CTRL
+ */
+ if (inb(devc->hw.io_base + STATR) & IRQ_REQ)
+ waveartist_iack(devc);
+
+// devc->audio_mode &= ~PCM_ENABLE_INPUT;
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static void
+waveartist_halt_output(int dev)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ waveartist_cmd1(devc, WACMD_OUTPUTSTOP);
+
+ devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
+
+ /*
+ * Clear interrupt by toggling
+ * the IRQ_ACK bit in CTRL
+ */
+ if (inb(devc->hw.io_base + STATR) & IRQ_REQ)
+ waveartist_iack(devc);
+
+// devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static void
+waveartist_trigger(int dev, int state)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)
+ audio_devs[dev]->devc;
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+ unsigned long flags;
+
+ if (debug_flg & DEBUG_TRIGGER) {
+ printk("wavnc: audio trigger ");
+ if (state & PCM_ENABLE_INPUT)
+ printk("in ");
+ if (state & PCM_ENABLE_OUTPUT)
+ printk("out");
+ printk("\n");
+ }
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ state &= devc->audio_mode;
+
+ if (portc->open_mode & OPEN_READ &&
+ state & PCM_ENABLE_INPUT)
+ /*
+ * enable ADC Data Transfer to PC
+ */
+ waveartist_cmd1(devc, WACMD_INPUTSTART);
+
+ if (portc->open_mode & OPEN_WRITE &&
+ state & PCM_ENABLE_OUTPUT)
+ /*
+ * enable DAC data transfer from PC
+ */
+ waveartist_cmd1(devc, WACMD_OUTPUTSTART);
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+}
+
+static int
+waveartist_set_speed(int dev, int arg)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+
+ if (arg <= 0)
+ return portc->speed;
+
+ if (arg < 5000)
+ arg = 5000;
+ if (arg > 44100)
+ arg = 44100;
+
+ portc->speed = arg;
+ return portc->speed;
+
+}
+
+static short
+waveartist_set_channels(int dev, short arg)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+
+ if (arg != 1 && arg != 2)
+ return portc->channels;
+
+ portc->channels = arg;
+ return arg;
+}
+
+static unsigned int
+waveartist_set_bits(int dev, unsigned int arg)
+{
+ struct wavnc_port_info *portc = (struct wavnc_port_info *)
+ audio_devs[dev]->portc;
+
+ if (arg == 0)
+ return portc->audio_format;
+
+ if ((arg != AFMT_U8) && (arg != AFMT_S16_LE) && (arg != AFMT_S8))
+ arg = AFMT_U8;
+
+ portc->audio_format = arg;
+
+ return arg;
+}
+
+static struct audio_driver waveartist_audio_driver = {
+ .owner = THIS_MODULE,
+ .open = waveartist_open,
+ .close = waveartist_close,
+ .output_block = waveartist_output_block,
+ .start_input = waveartist_start_input,
+ .ioctl = waveartist_ioctl,
+ .prepare_for_input = waveartist_prepare_for_input,
+ .prepare_for_output = waveartist_prepare_for_output,
+ .halt_io = waveartist_halt,
+ .halt_input = waveartist_halt_input,
+ .halt_output = waveartist_halt_output,
+ .trigger = waveartist_trigger,
+ .set_speed = waveartist_set_speed,
+ .set_bits = waveartist_set_bits,
+ .set_channels = waveartist_set_channels
+};
+
+
+static irqreturn_t
+waveartist_intr(int irq, void *dev_id)
+{
+ struct wavnc_info *devc = dev_id;
+ int irqstatus, status;
+
+ spin_lock(&waveartist_lock);
+ irqstatus = inb(devc->hw.io_base + IRQSTAT);
+ status = inb(devc->hw.io_base + STATR);
+
+ if (debug_flg & DEBUG_INTR)
+ printk("waveartist_intr: stat=%02x, irqstat=%02x\n",
+ status, irqstatus);
+
+ if (status & IRQ_REQ) /* Clear interrupt */
+ waveartist_iack(devc);
+ else
+ printk(KERN_WARNING "waveartist: unexpected interrupt\n");
+
+ if (irqstatus & 0x01) {
+ int temp = 1;
+
+ /* PCM buffer done
+ */
+ if ((status & DMA0) && (devc->audio_mode & PCM_ENABLE_OUTPUT)) {
+ DMAbuf_outputintr(devc->playback_dev, 1);
+ temp = 0;
+ }
+ if ((status & DMA1) && (devc->audio_mode & PCM_ENABLE_INPUT)) {
+ DMAbuf_inputintr(devc->record_dev);
+ temp = 0;
+ }
+ if (temp) //default:
+ printk(KERN_WARNING "waveartist: Unknown interrupt\n");
+ }
+ if (irqstatus & 0x2)
+ // We do not use SB mode natively...
+ printk(KERN_WARNING "waveartist: Unexpected SB interrupt...\n");
+ spin_unlock(&waveartist_lock);
+ return IRQ_HANDLED;
+}
+
+/* -------------------------------------------------------------------------
+ * Mixer stuff
+ */
+struct mix_ent {
+ unsigned char reg_l;
+ unsigned char reg_r;
+ unsigned char shift;
+ unsigned char max;
+};
+
+static const struct mix_ent mix_devs[SOUND_MIXER_NRDEVICES] = {
+ { 2, 6, 1, 7 }, /* SOUND_MIXER_VOLUME */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_BASS */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_TREBLE */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_SYNTH */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_PCM */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_SPEAKER */
+ { 0, 4, 6, 31 }, /* SOUND_MIXER_LINE */
+ { 2, 6, 4, 3 }, /* SOUND_MIXER_MIC */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_CD */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_IMIX */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_ALTPCM */
+#if 0
+ { 3, 7, 0, 10 }, /* SOUND_MIXER_RECLEV */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_IGAIN */
+#else
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_RECLEV */
+ { 3, 7, 0, 7 }, /* SOUND_MIXER_IGAIN */
+#endif
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_OGAIN */
+ { 0, 4, 1, 31 }, /* SOUND_MIXER_LINE1 */
+ { 1, 5, 6, 31 }, /* SOUND_MIXER_LINE2 */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_LINE3 */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL1 */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL2 */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL3 */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_PHONEIN */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_PHONEOUT */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_VIDEO */
+ { 0, 0, 0, 0 }, /* SOUND_MIXER_RADIO */
+ { 0, 0, 0, 0 } /* SOUND_MIXER_MONITOR */
+};
+
+static void
+waveartist_mixer_update(struct wavnc_info *devc, int whichDev)
+{
+ unsigned int lev_left, lev_right;
+
+ lev_left = devc->levels[whichDev] & 0xff;
+ lev_right = devc->levels[whichDev] >> 8;
+
+ if (lev_left > 100)
+ lev_left = 100;
+ if (lev_right > 100)
+ lev_right = 100;
+
+#define SCALE(lev,max) ((lev) * (max) / 100)
+
+ if (machine_is_netwinder() && whichDev == SOUND_MIXER_PHONEOUT)
+ whichDev = SOUND_MIXER_VOLUME;
+
+ if (mix_devs[whichDev].reg_l || mix_devs[whichDev].reg_r) {
+ const struct mix_ent *mix = mix_devs + whichDev;
+ unsigned int mask, left, right;
+
+ mask = mix->max << mix->shift;
+ lev_left = SCALE(lev_left, mix->max) << mix->shift;
+ lev_right = SCALE(lev_right, mix->max) << mix->shift;
+
+ /* read left setting */
+ left = waveartist_cmd1_r(devc, WACMD_GET_LEVEL |
+ mix->reg_l << 8);
+
+ /* read right setting */
+ right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL |
+ mix->reg_r << 8);
+
+ left = (left & ~mask) | (lev_left & mask);
+ right = (right & ~mask) | (lev_right & mask);
+
+ /* write left,right back */
+ waveartist_cmd3(devc, WACMD_SET_MIXER, left, right);
+ } else {
+ switch(whichDev) {
+ case SOUND_MIXER_PCM:
+ waveartist_cmd3(devc, WACMD_SET_LEVEL,
+ SCALE(lev_left, 32767),
+ SCALE(lev_right, 32767));
+ break;
+
+ case SOUND_MIXER_SYNTH:
+ waveartist_cmd3(devc, 0x0100 | WACMD_SET_LEVEL,
+ SCALE(lev_left, 32767),
+ SCALE(lev_right, 32767));
+ break;
+ }
+ }
+}
+
+/*
+ * Set the ADC MUX to the specified values. We do NOT do any
+ * checking of the values passed, since we assume that the
+ * relevant *_select_input function has done that for us.
+ */
+static void
+waveartist_set_adc_mux(struct wavnc_info *devc, char left_dev,
+ char right_dev)
+{
+ unsigned int reg_08, reg_09;
+
+ reg_08 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0800);
+ reg_09 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0900);
+
+ reg_08 = (reg_08 & ~0x3f) | right_dev << 3 | left_dev;
+
+ waveartist_cmd3(devc, WACMD_SET_MIXER, reg_08, reg_09);
+}
+
+/*
+ * Decode a recording mask into a mixer selection as follows:
+ *
+ * OSS Source WA Source Actual source
+ * SOUND_MASK_IMIX Mixer Mixer output (same as AD1848)
+ * SOUND_MASK_LINE Line Line in
+ * SOUND_MASK_LINE1 Aux 1 Aux 1 in
+ * SOUND_MASK_LINE2 Aux 2 Aux 2 in
+ * SOUND_MASK_MIC Mic Microphone
+ */
+static unsigned int
+waveartist_select_input(struct wavnc_info *devc, unsigned int recmask,
+ unsigned char *dev_l, unsigned char *dev_r)
+{
+ unsigned int recdev = ADC_MUX_NONE;
+
+ if (recmask & SOUND_MASK_IMIX) {
+ recmask = SOUND_MASK_IMIX;
+ recdev = ADC_MUX_MIXER;
+ } else if (recmask & SOUND_MASK_LINE2) {
+ recmask = SOUND_MASK_LINE2;
+ recdev = ADC_MUX_AUX2;
+ } else if (recmask & SOUND_MASK_LINE1) {
+ recmask = SOUND_MASK_LINE1;
+ recdev = ADC_MUX_AUX1;
+ } else if (recmask & SOUND_MASK_LINE) {
+ recmask = SOUND_MASK_LINE;
+ recdev = ADC_MUX_LINE;
+ } else if (recmask & SOUND_MASK_MIC) {
+ recmask = SOUND_MASK_MIC;
+ recdev = ADC_MUX_MIC;
+ }
+
+ *dev_l = *dev_r = recdev;
+
+ return recmask;
+}
+
+static int
+waveartist_decode_mixer(struct wavnc_info *devc, int dev,
+ unsigned char lev_l,
+ unsigned char lev_r)
+{
+ switch (dev) {
+ case SOUND_MIXER_VOLUME:
+ case SOUND_MIXER_SYNTH:
+ case SOUND_MIXER_PCM:
+ case SOUND_MIXER_LINE:
+ case SOUND_MIXER_MIC:
+ case SOUND_MIXER_IGAIN:
+ case SOUND_MIXER_LINE1:
+ case SOUND_MIXER_LINE2:
+ devc->levels[dev] = lev_l | lev_r << 8;
+ break;
+
+ case SOUND_MIXER_IMIX:
+ break;
+
+ default:
+ dev = -EINVAL;
+ break;
+ }
+
+ return dev;
+}
+
+static int waveartist_get_mixer(struct wavnc_info *devc, int dev)
+{
+ return devc->levels[dev];
+}
+
+static const struct waveartist_mixer_info waveartist_mixer = {
+ .supported_devs = SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN,
+ .recording_devs = SOUND_MASK_LINE | SOUND_MASK_MIC |
+ SOUND_MASK_LINE1 | SOUND_MASK_LINE2 |
+ SOUND_MASK_IMIX,
+ .stereo_devs = (SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN) & ~
+ (SOUND_MASK_SPEAKER | SOUND_MASK_IMIX),
+ .select_input = waveartist_select_input,
+ .decode_mixer = waveartist_decode_mixer,
+ .get_mixer = waveartist_get_mixer,
+};
+
+static void
+waveartist_set_recmask(struct wavnc_info *devc, unsigned int recmask)
+{
+ unsigned char dev_l, dev_r;
+
+ recmask &= devc->mix->recording_devs;
+
+ /*
+ * If more than one recording device selected,
+ * disable the device that is currently in use.
+ */
+ if (hweight32(recmask) > 1)
+ recmask &= ~devc->recmask;
+
+ /*
+ * Translate the recording device mask into
+ * the ADC multiplexer settings.
+ */
+ devc->recmask = devc->mix->select_input(devc, recmask,
+ &dev_l, &dev_r);
+
+ waveartist_set_adc_mux(devc, dev_l, dev_r);
+}
+
+static int
+waveartist_set_mixer(struct wavnc_info *devc, int dev, unsigned int level)
+{
+ unsigned int lev_left = level & 0x00ff;
+ unsigned int lev_right = (level & 0xff00) >> 8;
+
+ if (lev_left > 100)
+ lev_left = 100;
+ if (lev_right > 100)
+ lev_right = 100;
+
+ /*
+ * Mono devices have their right volume forced to their
+ * left volume. (from ALSA driver OSS emulation).
+ */
+ if (!(devc->mix->stereo_devs & (1 << dev)))
+ lev_right = lev_left;
+
+ dev = devc->mix->decode_mixer(devc, dev, lev_left, lev_right);
+
+ if (dev >= 0)
+ waveartist_mixer_update(devc, dev);
+
+ return dev < 0 ? dev : 0;
+}
+
+static int
+waveartist_mixer_ioctl(int dev, unsigned int cmd, void __user * arg)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)audio_devs[dev]->devc;
+ int ret = 0, val, nr;
+
+ /*
+ * All SOUND_MIXER_* ioctls use type 'M'
+ */
+ if (((cmd >> 8) & 255) != 'M')
+ return -ENOIOCTLCMD;
+
+#ifdef CONFIG_ARCH_NETWINDER
+ if (machine_is_netwinder()) {
+ ret = vnc_private_ioctl(dev, cmd, arg);
+ if (ret != -ENOIOCTLCMD)
+ return ret;
+ else
+ ret = 0;
+ }
+#endif
+
+ nr = cmd & 0xff;
+
+ if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
+ if (get_user(val, (int __user *)arg))
+ return -EFAULT;
+
+ switch (nr) {
+ case SOUND_MIXER_RECSRC:
+ waveartist_set_recmask(devc, val);
+ break;
+
+ default:
+ ret = -EINVAL;
+ if (nr < SOUND_MIXER_NRDEVICES &&
+ devc->mix->supported_devs & (1 << nr))
+ ret = waveartist_set_mixer(devc, nr, val);
+ }
+ }
+
+ if (ret == 0 && _SIOC_DIR(cmd) & _SIOC_READ) {
+ ret = -EINVAL;
+
+ switch (nr) {
+ case SOUND_MIXER_RECSRC:
+ ret = devc->recmask;
+ break;
+
+ case SOUND_MIXER_DEVMASK:
+ ret = devc->mix->supported_devs;
+ break;
+
+ case SOUND_MIXER_STEREODEVS:
+ ret = devc->mix->stereo_devs;
+ break;
+
+ case SOUND_MIXER_RECMASK:
+ ret = devc->mix->recording_devs;
+ break;
+
+ case SOUND_MIXER_CAPS:
+ ret = SOUND_CAP_EXCL_INPUT;
+ break;
+
+ default:
+ if (nr < SOUND_MIXER_NRDEVICES)
+ ret = devc->mix->get_mixer(devc, nr);
+ break;
+ }
+
+ if (ret >= 0)
+ ret = put_user(ret, (int __user *)arg) ? -EFAULT : 0;
+ }
+
+ return ret;
+}
+
+static struct mixer_operations waveartist_mixer_operations =
+{
+ .owner = THIS_MODULE,
+ .id = "WaveArtist",
+ .name = "WaveArtist",
+ .ioctl = waveartist_mixer_ioctl
+};
+
+static void
+waveartist_mixer_reset(struct wavnc_info *devc)
+{
+ int i;
+
+ if (debug_flg & DEBUG_MIXER)
+ printk("%s: mixer_reset\n", devc->hw.name);
+
+ /*
+ * reset mixer cmd
+ */
+ waveartist_cmd1(devc, WACMD_RST_MIXER);
+
+ /*
+ * set input for ADC to come from 'quiet'
+ * turn on default modes
+ */
+ waveartist_cmd3(devc, WACMD_SET_MIXER, 0x9800, 0xa836);
+
+ /*
+ * set mixer input select to none, RX filter gains 0 dB
+ */
+ waveartist_cmd3(devc, WACMD_SET_MIXER, 0x4c00, 0x8c00);
+
+ /*
+ * set bit 0 reg 2 to 1 - unmute MonoOut
+ */
+ waveartist_cmd3(devc, WACMD_SET_MIXER, 0x2801, 0x6800);
+
+ /* set default input device = internal mic
+ * current recording device = none
+ */
+ waveartist_set_recmask(devc, 0);
+
+ for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+ waveartist_mixer_update(devc, i);
+}
+
+static int __init waveartist_init(struct wavnc_info *devc)
+{
+ struct wavnc_port_info *portc;
+ char rev[3], dev_name[64];
+ int my_dev;
+
+ if (waveartist_reset(devc))
+ return -ENODEV;
+
+ sprintf(dev_name, "%s (%s", devc->hw.name, devc->chip_name);
+
+ if (waveartist_getrev(devc, rev)) {
+ strcat(dev_name, " rev. ");
+ strcat(dev_name, rev);
+ }
+ strcat(dev_name, ")");
+
+ conf_printf2(dev_name, devc->hw.io_base, devc->hw.irq,
+ devc->hw.dma, devc->hw.dma2);
+
+ portc = kzalloc(sizeof(struct wavnc_port_info), GFP_KERNEL);
+ if (portc == NULL)
+ goto nomem;
+
+ my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, dev_name,
+ &waveartist_audio_driver, sizeof(struct audio_driver),
+ devc->audio_flags, AFMT_U8 | AFMT_S16_LE | AFMT_S8,
+ devc, devc->hw.dma, devc->hw.dma2);
+
+ if (my_dev < 0)
+ goto free;
+
+ audio_devs[my_dev]->portc = portc;
+
+ waveartist_mixer_reset(devc);
+
+ /*
+ * clear any pending interrupt
+ */
+ waveartist_iack(devc);
+
+ if (request_irq(devc->hw.irq, waveartist_intr, 0, devc->hw.name, devc) < 0) {
+ printk(KERN_ERR "%s: IRQ %d in use\n",
+ devc->hw.name, devc->hw.irq);
+ goto uninstall;
+ }
+
+ if (sound_alloc_dma(devc->hw.dma, devc->hw.name)) {
+ printk(KERN_ERR "%s: Can't allocate DMA%d\n",
+ devc->hw.name, devc->hw.dma);
+ goto uninstall_irq;
+ }
+
+ if (devc->hw.dma != devc->hw.dma2 && devc->hw.dma2 != NO_DMA)
+ if (sound_alloc_dma(devc->hw.dma2, devc->hw.name)) {
+ printk(KERN_ERR "%s: can't allocate DMA%d\n",
+ devc->hw.name, devc->hw.dma2);
+ goto uninstall_dma;
+ }
+
+ waveartist_set_ctlr(&devc->hw, 0, DMA1_IE | DMA0_IE);
+
+ audio_devs[my_dev]->mixer_dev =
+ sound_install_mixer(MIXER_DRIVER_VERSION,
+ dev_name,
+ &waveartist_mixer_operations,
+ sizeof(struct mixer_operations),
+ devc);
+
+ return my_dev;
+
+uninstall_dma:
+ sound_free_dma(devc->hw.dma);
+
+uninstall_irq:
+ free_irq(devc->hw.irq, devc);
+
+uninstall:
+ sound_unload_audiodev(my_dev);
+
+free:
+ kfree(portc);
+
+nomem:
+ return -1;
+}
+
+static int __init probe_waveartist(struct address_info *hw_config)
+{
+ struct wavnc_info *devc = &adev_info[nr_waveartist_devs];
+
+ if (nr_waveartist_devs >= MAX_AUDIO_DEV) {
+ printk(KERN_WARNING "waveartist: too many audio devices\n");
+ return 0;
+ }
+
+ if (!request_region(hw_config->io_base, 15, hw_config->name)) {
+ printk(KERN_WARNING "WaveArtist: I/O port conflict\n");
+ return 0;
+ }
+
+ if (hw_config->irq > 15 || hw_config->irq < 0) {
+ release_region(hw_config->io_base, 15);
+ printk(KERN_WARNING "WaveArtist: Bad IRQ %d\n",
+ hw_config->irq);
+ return 0;
+ }
+
+ if (hw_config->dma != 3) {
+ release_region(hw_config->io_base, 15);
+ printk(KERN_WARNING "WaveArtist: Bad DMA %d\n",
+ hw_config->dma);
+ return 0;
+ }
+
+ hw_config->name = "WaveArtist";
+ devc->hw = *hw_config;
+ devc->open_mode = 0;
+ devc->chip_name = "RWA-010";
+
+ return 1;
+}
+
+static void __init
+attach_waveartist(struct address_info *hw, const struct waveartist_mixer_info *mix)
+{
+ struct wavnc_info *devc = &adev_info[nr_waveartist_devs];
+
+ /*
+ * NOTE! If irq < 0, there is another driver which has allocated the
+ * IRQ so that this driver doesn't need to allocate/deallocate it.
+ * The actually used IRQ is ABS(irq).
+ */
+ devc->hw = *hw;
+ devc->hw.irq = (hw->irq > 0) ? hw->irq : 0;
+ devc->open_mode = 0;
+ devc->playback_dev = 0;
+ devc->record_dev = 0;
+ devc->audio_flags = DMA_AUTOMODE;
+ devc->levels = levels;
+
+ if (hw->dma != hw->dma2 && hw->dma2 != NO_DMA)
+ devc->audio_flags |= DMA_DUPLEX;
+
+ devc->mix = mix;
+ devc->dev_no = waveartist_init(devc);
+
+ if (devc->dev_no < 0)
+ release_region(hw->io_base, 15);
+ else {
+#ifdef CONFIG_ARCH_NETWINDER
+ if (machine_is_netwinder()) {
+ init_timer(&vnc_timer);
+ vnc_timer.function = vnc_slider_tick;
+ vnc_timer.expires = jiffies;
+ vnc_timer.data = nr_waveartist_devs;
+ add_timer(&vnc_timer);
+
+ vnc_configure_mixer(devc, 0);
+
+ devc->no_autoselect = 1;
+ }
+#endif
+ nr_waveartist_devs += 1;
+ }
+}
+
+static void __exit unload_waveartist(struct address_info *hw)
+{
+ struct wavnc_info *devc = NULL;
+ int i;
+
+ for (i = 0; i < nr_waveartist_devs; i++)
+ if (hw->io_base == adev_info[i].hw.io_base) {
+ devc = adev_info + i;
+ break;
+ }
+
+ if (devc != NULL) {
+ int mixer;
+
+#ifdef CONFIG_ARCH_NETWINDER
+ if (machine_is_netwinder())
+ del_timer(&vnc_timer);
+#endif
+
+ release_region(devc->hw.io_base, 15);
+
+ waveartist_set_ctlr(&devc->hw, DMA1_IE|DMA0_IE, 0);
+
+ if (devc->hw.irq >= 0)
+ free_irq(devc->hw.irq, devc);
+
+ sound_free_dma(devc->hw.dma);
+
+ if (devc->hw.dma != devc->hw.dma2 &&
+ devc->hw.dma2 != NO_DMA)
+ sound_free_dma(devc->hw.dma2);
+
+ mixer = audio_devs[devc->dev_no]->mixer_dev;
+
+ if (mixer >= 0)
+ sound_unload_mixerdev(mixer);
+
+ if (devc->dev_no >= 0)
+ sound_unload_audiodev(devc->dev_no);
+
+ nr_waveartist_devs -= 1;
+
+ for (; i < nr_waveartist_devs; i++)
+ adev_info[i] = adev_info[i + 1];
+ } else
+ printk(KERN_WARNING "waveartist: can't find device "
+ "to unload\n");
+}
+
+#ifdef CONFIG_ARCH_NETWINDER
+
+/*
+ * Rebel.com Netwinder specifics...
+ */
+
+#include <asm/hardware/dec21285.h>
+
+#define VNC_TIMER_PERIOD (HZ/4) //check slider 4 times/sec
+
+#define MIXER_PRIVATE3_RESET 0x53570000
+#define MIXER_PRIVATE3_READ 0x53570001
+#define MIXER_PRIVATE3_WRITE 0x53570002
+
+#define VNC_MUTE_INTERNAL_SPKR 0x01 //the sw mute on/off control bit
+#define VNC_MUTE_LINE_OUT 0x10
+#define VNC_PHONE_DETECT 0x20
+#define VNC_HANDSET_DETECT 0x40
+#define VNC_DISABLE_AUTOSWITCH 0x80
+
+static inline void
+vnc_mute_spkr(struct wavnc_info *devc)
+{
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&nw_gpio_lock, flags);
+ nw_cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE);
+ raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
+}
+
+static void
+vnc_mute_lout(struct wavnc_info *devc)
+{
+ unsigned int left, right;
+
+ left = waveartist_cmd1_r(devc, WACMD_GET_LEVEL);
+ right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x400);
+
+ if (devc->line_mute_state) {
+ left &= ~1;
+ right &= ~1;
+ } else {
+ left |= 1;
+ right |= 1;
+ }
+ waveartist_cmd3(devc, WACMD_SET_MIXER, left, right);
+
+}
+
+static int
+vnc_volume_slider(struct wavnc_info *devc)
+{
+ static signed int old_slider_volume;
+ unsigned long flags;
+ signed int volume = 255;
+
+ *CSR_TIMER1_LOAD = 0x00ffffff;
+
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ outb(0xFF, 0x201);
+ *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_DIV1;
+
+ while (volume && (inb(0x201) & 0x01))
+ volume--;
+
+ *CSR_TIMER1_CNTL = 0;
+
+ spin_unlock_irqrestore(&waveartist_lock,flags);
+
+ volume = 0x00ffffff - *CSR_TIMER1_VALUE;
+
+
+#ifndef REVERSE
+ volume = 150 - (volume >> 5);
+#else
+ volume = (volume >> 6) - 25;
+#endif
+
+ if (volume < 0)
+ volume = 0;
+
+ if (volume > 100)
+ volume = 100;
+
+ /*
+ * slider quite often reads +-8, so debounce this random noise
+ */
+ if (abs(volume - old_slider_volume) > 7) {
+ old_slider_volume = volume;
+
+ if (debug_flg & DEBUG_MIXER)
+ printk(KERN_DEBUG "Slider volume: %d.\n", volume);
+ }
+
+ return old_slider_volume;
+}
+
+/*
+ * Decode a recording mask into a mixer selection on the NetWinder
+ * as follows:
+ *
+ * OSS Source WA Source Actual source
+ * SOUND_MASK_IMIX Mixer Mixer output (same as AD1848)
+ * SOUND_MASK_LINE Line Line in
+ * SOUND_MASK_LINE1 Left Mic Handset
+ * SOUND_MASK_PHONEIN Left Aux Telephone microphone
+ * SOUND_MASK_MIC Right Mic Builtin microphone
+ */
+static unsigned int
+netwinder_select_input(struct wavnc_info *devc, unsigned int recmask,
+ unsigned char *dev_l, unsigned char *dev_r)
+{
+ unsigned int recdev_l = ADC_MUX_NONE, recdev_r = ADC_MUX_NONE;
+
+ if (recmask & SOUND_MASK_IMIX) {
+ recmask = SOUND_MASK_IMIX;
+ recdev_l = ADC_MUX_MIXER;
+ recdev_r = ADC_MUX_MIXER;
+ } else if (recmask & SOUND_MASK_LINE) {
+ recmask = SOUND_MASK_LINE;
+ recdev_l = ADC_MUX_LINE;
+ recdev_r = ADC_MUX_LINE;
+ } else if (recmask & SOUND_MASK_LINE1) {
+ recmask = SOUND_MASK_LINE1;
+ waveartist_cmd1(devc, WACMD_SET_MONO); /* left */
+ recdev_l = ADC_MUX_MIC;
+ recdev_r = ADC_MUX_NONE;
+ } else if (recmask & SOUND_MASK_PHONEIN) {
+ recmask = SOUND_MASK_PHONEIN;
+ waveartist_cmd1(devc, WACMD_SET_MONO); /* left */
+ recdev_l = ADC_MUX_AUX1;
+ recdev_r = ADC_MUX_NONE;
+ } else if (recmask & SOUND_MASK_MIC) {
+ recmask = SOUND_MASK_MIC;
+ waveartist_cmd1(devc, WACMD_SET_MONO | 0x100); /* right */
+ recdev_l = ADC_MUX_NONE;
+ recdev_r = ADC_MUX_MIC;
+ }
+
+ *dev_l = recdev_l;
+ *dev_r = recdev_r;
+
+ return recmask;
+}
+
+static int
+netwinder_decode_mixer(struct wavnc_info *devc, int dev, unsigned char lev_l,
+ unsigned char lev_r)
+{
+ switch (dev) {
+ case SOUND_MIXER_VOLUME:
+ case SOUND_MIXER_SYNTH:
+ case SOUND_MIXER_PCM:
+ case SOUND_MIXER_LINE:
+ case SOUND_MIXER_IGAIN:
+ devc->levels[dev] = lev_l | lev_r << 8;
+ break;
+
+ case SOUND_MIXER_MIC: /* right mic only */
+ devc->levels[SOUND_MIXER_MIC] &= 0xff;
+ devc->levels[SOUND_MIXER_MIC] |= lev_l << 8;
+ break;
+
+ case SOUND_MIXER_LINE1: /* left mic only */
+ devc->levels[SOUND_MIXER_MIC] &= 0xff00;
+ devc->levels[SOUND_MIXER_MIC] |= lev_l;
+ dev = SOUND_MIXER_MIC;
+ break;
+
+ case SOUND_MIXER_PHONEIN: /* left aux only */
+ devc->levels[SOUND_MIXER_LINE1] = lev_l;
+ dev = SOUND_MIXER_LINE1;
+ break;
+
+ case SOUND_MIXER_IMIX:
+ case SOUND_MIXER_PHONEOUT:
+ break;
+
+ default:
+ dev = -EINVAL;
+ break;
+ }
+ return dev;
+}
+
+static int netwinder_get_mixer(struct wavnc_info *devc, int dev)
+{
+ int levels;
+
+ switch (dev) {
+ case SOUND_MIXER_VOLUME:
+ case SOUND_MIXER_SYNTH:
+ case SOUND_MIXER_PCM:
+ case SOUND_MIXER_LINE:
+ case SOUND_MIXER_IGAIN:
+ levels = devc->levels[dev];
+ break;
+
+ case SOUND_MIXER_MIC: /* builtin mic: right mic only */
+ levels = devc->levels[SOUND_MIXER_MIC] >> 8;
+ levels |= levels << 8;
+ break;
+
+ case SOUND_MIXER_LINE1: /* handset mic: left mic only */
+ levels = devc->levels[SOUND_MIXER_MIC] & 0xff;
+ levels |= levels << 8;
+ break;
+
+ case SOUND_MIXER_PHONEIN: /* phone mic: left aux1 only */
+ levels = devc->levels[SOUND_MIXER_LINE1] & 0xff;
+ levels |= levels << 8;
+ break;
+
+ default:
+ levels = 0;
+ }
+
+ return levels;
+}
+
+/*
+ * Waveartist specific mixer information.
+ */
+static const struct waveartist_mixer_info netwinder_mixer = {
+ .supported_devs = SOUND_MASK_VOLUME | SOUND_MASK_SYNTH |
+ SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
+ SOUND_MASK_LINE | SOUND_MASK_MIC |
+ SOUND_MASK_IMIX | SOUND_MASK_LINE1 |
+ SOUND_MASK_PHONEIN | SOUND_MASK_PHONEOUT|
+ SOUND_MASK_IGAIN,
+
+ .recording_devs = SOUND_MASK_LINE | SOUND_MASK_MIC |
+ SOUND_MASK_IMIX | SOUND_MASK_LINE1 |
+ SOUND_MASK_PHONEIN,
+
+ .stereo_devs = SOUND_MASK_VOLUME | SOUND_MASK_SYNTH |
+ SOUND_MASK_PCM | SOUND_MASK_LINE |
+ SOUND_MASK_IMIX | SOUND_MASK_IGAIN,
+
+ .select_input = netwinder_select_input,
+ .decode_mixer = netwinder_decode_mixer,
+ .get_mixer = netwinder_get_mixer,
+};
+
+static void
+vnc_configure_mixer(struct wavnc_info *devc, unsigned int recmask)
+{
+ if (!devc->no_autoselect) {
+ if (devc->handset_detect) {
+ recmask = SOUND_MASK_LINE1;
+ devc->spkr_mute_state = devc->line_mute_state = 1;
+ } else if (devc->telephone_detect) {
+ recmask = SOUND_MASK_PHONEIN;
+ devc->spkr_mute_state = devc->line_mute_state = 1;
+ } else {
+ /* unless someone has asked for LINE-IN,
+ * we default to MIC
+ */
+ if ((devc->recmask & SOUND_MASK_LINE) == 0)
+ devc->recmask = SOUND_MASK_MIC;
+ devc->spkr_mute_state = devc->line_mute_state = 0;
+ }
+ vnc_mute_spkr(devc);
+ vnc_mute_lout(devc);
+
+ if (recmask != devc->recmask)
+ waveartist_set_recmask(devc, recmask);
+ }
+}
+
+static int
+vnc_slider(struct wavnc_info *devc)
+{
+ signed int slider_volume;
+ unsigned int temp, old_hs, old_td;
+
+ /*
+ * read the "buttons" state.
+ * Bit 4 = 0 means handset present
+ * Bit 5 = 1 means phone offhook
+ */
+ temp = inb(0x201);
+
+ old_hs = devc->handset_detect;
+ old_td = devc->telephone_detect;
+
+ devc->handset_detect = !(temp & 0x10);
+ devc->telephone_detect = !!(temp & 0x20);
+
+ if (!devc->no_autoselect &&
+ (old_hs != devc->handset_detect ||
+ old_td != devc->telephone_detect))
+ vnc_configure_mixer(devc, devc->recmask);
+
+ slider_volume = vnc_volume_slider(devc);
+
+ /*
+ * If we're using software controlled volume, and
+ * the slider moves by more than 20%, then we
+ * switch back to slider controlled volume.
+ */
+ if (abs(devc->slider_vol - slider_volume) > 20)
+ devc->use_slider = 1;
+
+ /*
+ * use only left channel
+ */
+ temp = levels[SOUND_MIXER_VOLUME] & 0xFF;
+
+ if (slider_volume != temp && devc->use_slider) {
+ devc->slider_vol = slider_volume;
+
+ waveartist_set_mixer(devc, SOUND_MIXER_VOLUME,
+ slider_volume | slider_volume << 8);
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static void
+vnc_slider_tick(unsigned long data)
+{
+ int next_timeout;
+
+ if (vnc_slider(adev_info + data))
+ next_timeout = 5; // mixer reported change
+ else
+ next_timeout = VNC_TIMER_PERIOD;
+
+ mod_timer(&vnc_timer, jiffies + next_timeout);
+}
+
+static int
+vnc_private_ioctl(int dev, unsigned int cmd, int __user * arg)
+{
+ struct wavnc_info *devc = (struct wavnc_info *)audio_devs[dev]->devc;
+ int val;
+
+ switch (cmd) {
+ case SOUND_MIXER_PRIVATE1:
+ {
+ u_int prev_spkr_mute, prev_line_mute, prev_auto_state;
+ int val;
+
+ if (get_user(val, arg))
+ return -EFAULT;
+
+ /* check if parameter is logical */
+ if (val & ~(VNC_MUTE_INTERNAL_SPKR |
+ VNC_MUTE_LINE_OUT |
+ VNC_DISABLE_AUTOSWITCH))
+ return -EINVAL;
+
+ prev_auto_state = devc->no_autoselect;
+ prev_spkr_mute = devc->spkr_mute_state;
+ prev_line_mute = devc->line_mute_state;
+
+ devc->no_autoselect = (val & VNC_DISABLE_AUTOSWITCH) ? 1 : 0;
+ devc->spkr_mute_state = (val & VNC_MUTE_INTERNAL_SPKR) ? 1 : 0;
+ devc->line_mute_state = (val & VNC_MUTE_LINE_OUT) ? 1 : 0;
+
+ if (prev_spkr_mute != devc->spkr_mute_state)
+ vnc_mute_spkr(devc);
+
+ if (prev_line_mute != devc->line_mute_state)
+ vnc_mute_lout(devc);
+
+ if (prev_auto_state != devc->no_autoselect)
+ vnc_configure_mixer(devc, devc->recmask);
+
+ return 0;
+ }
+
+ case SOUND_MIXER_PRIVATE2:
+ if (get_user(val, arg))
+ return -EFAULT;
+
+ switch (val) {
+#define VNC_SOUND_PAUSE 0x53 //to pause the DSP
+#define VNC_SOUND_RESUME 0x57 //to unpause the DSP
+ case VNC_SOUND_PAUSE:
+ waveartist_cmd1(devc, 0x16);
+ break;
+
+ case VNC_SOUND_RESUME:
+ waveartist_cmd1(devc, 0x18);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+
+ /* private ioctl to allow bulk access to waveartist */
+ case SOUND_MIXER_PRIVATE3:
+ {
+ unsigned long flags;
+ int mixer_reg[15], i, val;
+
+ if (get_user(val, arg))
+ return -EFAULT;
+ if (copy_from_user(mixer_reg, (void *)val, sizeof(mixer_reg)))
+ return -EFAULT;
+
+ switch (mixer_reg[14]) {
+ case MIXER_PRIVATE3_RESET:
+ waveartist_mixer_reset(devc);
+ break;
+
+ case MIXER_PRIVATE3_WRITE:
+ waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[0], mixer_reg[4]);
+ waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[1], mixer_reg[5]);
+ waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[2], mixer_reg[6]);
+ waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[3], mixer_reg[7]);
+ waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[8], mixer_reg[9]);
+
+ waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[10], mixer_reg[11]);
+ waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[12], mixer_reg[13]);
+ break;
+
+ case MIXER_PRIVATE3_READ:
+ spin_lock_irqsave(&waveartist_lock, flags);
+
+ for (i = 0x30; i < 14 << 8; i += 1 << 8)
+ waveartist_cmd(devc, 1, &i, 1, mixer_reg + (i >> 8));
+
+ spin_unlock_irqrestore(&waveartist_lock, flags);
+
+ if (copy_to_user((void *)val, mixer_reg, sizeof(mixer_reg)))
+ return -EFAULT;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+
+ /* read back the state from PRIVATE1 */
+ case SOUND_MIXER_PRIVATE4:
+ val = (devc->spkr_mute_state ? VNC_MUTE_INTERNAL_SPKR : 0) |
+ (devc->line_mute_state ? VNC_MUTE_LINE_OUT : 0) |
+ (devc->handset_detect ? VNC_HANDSET_DETECT : 0) |
+ (devc->telephone_detect ? VNC_PHONE_DETECT : 0) |
+ (devc->no_autoselect ? VNC_DISABLE_AUTOSWITCH : 0);
+
+ return put_user(val, arg) ? -EFAULT : 0;
+ }
+
+ if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
+ /*
+ * special case for master volume: if we
+ * received this call - switch from hw
+ * volume control to a software volume
+ * control, till the hw volume is modified
+ * to signal that user wants to be back in
+ * hardware...
+ */
+ if ((cmd & 0xff) == SOUND_MIXER_VOLUME)
+ devc->use_slider = 0;
+
+ /* speaker output */
+ if ((cmd & 0xff) == SOUND_MIXER_SPEAKER) {
+ unsigned int val, l, r;
+
+ if (get_user(val, arg))
+ return -EFAULT;
+
+ l = val & 0x7f;
+ r = (val & 0x7f00) >> 8;
+ val = (l + r) / 2;
+ devc->levels[SOUND_MIXER_SPEAKER] = val | (val << 8);
+ devc->spkr_mute_state = (val <= 50);
+ vnc_mute_spkr(devc);
+ return 0;
+ }
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+#endif
+
+static struct address_info cfg;
+
+static int attached;
+
+static int __initdata io = 0;
+static int __initdata irq = 0;
+static int __initdata dma = 0;
+static int __initdata dma2 = 0;
+
+
+static int __init init_waveartist(void)
+{
+ const struct waveartist_mixer_info *mix;
+
+ if (!io && machine_is_netwinder()) {
+ /*
+ * The NetWinder WaveArtist is at a fixed address.
+ * If the user does not supply an address, use the
+ * well-known parameters.
+ */
+ io = 0x250;
+ irq = 12;
+ dma = 3;
+ dma2 = 7;
+ }
+
+ mix = &waveartist_mixer;
+#ifdef CONFIG_ARCH_NETWINDER
+ if (machine_is_netwinder())
+ mix = &netwinder_mixer;
+#endif
+
+ cfg.io_base = io;
+ cfg.irq = irq;
+ cfg.dma = dma;
+ cfg.dma2 = dma2;
+
+ if (!probe_waveartist(&cfg))
+ return -ENODEV;
+
+ attach_waveartist(&cfg, mix);
+ attached = 1;
+
+ return 0;
+}
+
+static void __exit cleanup_waveartist(void)
+{
+ if (attached)
+ unload_waveartist(&cfg);
+}
+
+module_init(init_waveartist);
+module_exit(cleanup_waveartist);
+
+#ifndef MODULE
+static int __init setup_waveartist(char *str)
+{
+ /* io, irq, dma, dma2 */
+ int ints[5];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ io = ints[1];
+ irq = ints[2];
+ dma = ints[3];
+ dma2 = ints[4];
+
+ return 1;
+}
+__setup("waveartist=", setup_waveartist);
+#endif
+
+MODULE_DESCRIPTION("Rockwell WaveArtist RWA-010 sound driver");
+module_param(io, int, 0); /* IO base */
+module_param(irq, int, 0); /* IRQ */
+module_param(dma, int, 0); /* DMA */
+module_param(dma2, int, 0); /* DMA2 */
+MODULE_LICENSE("GPL");