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/soc/sh/siu.h b/sound/soc/sh/siu.h
new file mode 100644
index 0000000..83c3430
--- /dev/null
+++ b/sound/soc/sh/siu.h
@@ -0,0 +1,194 @@
+/*
+ * siu.h - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral.
+ *
+ * Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ * Copyright (C) 2006 Carlos Munoz <carlos@kenati.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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef SIU_H
+#define SIU_H
+
+/* Common kernel and user-space firmware-building defines and types */
+
+#define YRAM0_SIZE (0x0040 / 4) /* 16 */
+#define YRAM1_SIZE (0x0080 / 4) /* 32 */
+#define YRAM2_SIZE (0x0040 / 4) /* 16 */
+#define YRAM3_SIZE (0x0080 / 4) /* 32 */
+#define YRAM4_SIZE (0x0080 / 4) /* 32 */
+#define YRAM_DEF_SIZE (YRAM0_SIZE + YRAM1_SIZE + YRAM2_SIZE + \
+ YRAM3_SIZE + YRAM4_SIZE)
+#define YRAM_FIR_SIZE (0x0400 / 4) /* 256 */
+#define YRAM_IIR_SIZE (0x0200 / 4) /* 128 */
+
+#define XRAM0_SIZE (0x0400 / 4) /* 256 */
+#define XRAM1_SIZE (0x0200 / 4) /* 128 */
+#define XRAM2_SIZE (0x0200 / 4) /* 128 */
+
+/* PRAM program array size */
+#define PRAM0_SIZE (0x0100 / 4) /* 64 */
+#define PRAM1_SIZE ((0x2000 - 0x0100) / 4) /* 1984 */
+
+#include <linux/types.h>
+
+struct siu_spb_param {
+ __u32 ab1a; /* input FIFO address */
+ __u32 ab0a; /* output FIFO address */
+ __u32 dir; /* 0=the ather except CPUOUTPUT, 1=CPUINPUT */
+ __u32 event; /* SPB program starting conditions */
+ __u32 stfifo; /* STFIFO register setting value */
+ __u32 trdat; /* TRDAT register setting value */
+};
+
+struct siu_firmware {
+ __u32 yram_fir_coeff[YRAM_FIR_SIZE];
+ __u32 pram0[PRAM0_SIZE];
+ __u32 pram1[PRAM1_SIZE];
+ __u32 yram0[YRAM0_SIZE];
+ __u32 yram1[YRAM1_SIZE];
+ __u32 yram2[YRAM2_SIZE];
+ __u32 yram3[YRAM3_SIZE];
+ __u32 yram4[YRAM4_SIZE];
+ __u32 spbpar_num;
+ struct siu_spb_param spbpar[32];
+};
+
+#ifdef __KERNEL__
+
+#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/sh_dma.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#define SIU_PERIOD_BYTES_MAX 8192 /* DMA transfer/period size */
+#define SIU_PERIOD_BYTES_MIN 256 /* DMA transfer/period size */
+#define SIU_PERIODS_MAX 64 /* Max periods in buffer */
+#define SIU_PERIODS_MIN 4 /* Min periods in buffer */
+#define SIU_BUFFER_BYTES_MAX (SIU_PERIOD_BYTES_MAX * SIU_PERIODS_MAX)
+
+/* SIU ports: only one can be used at a time */
+enum {
+ SIU_PORT_A,
+ SIU_PORT_B,
+ SIU_PORT_NUM,
+};
+
+/* SIU clock configuration */
+enum {
+ SIU_CLKA_PLL,
+ SIU_CLKA_EXT,
+ SIU_CLKB_PLL,
+ SIU_CLKB_EXT
+};
+
+struct device;
+struct siu_info {
+ struct device *dev;
+ int port_id;
+ u32 __iomem *pram;
+ u32 __iomem *xram;
+ u32 __iomem *yram;
+ u32 __iomem *reg;
+ struct siu_firmware fw;
+};
+
+struct siu_stream {
+ struct tasklet_struct tasklet;
+ struct snd_pcm_substream *substream;
+ snd_pcm_format_t format;
+ size_t buf_bytes;
+ size_t period_bytes;
+ int cur_period; /* Period currently in dma */
+ u32 volume;
+ snd_pcm_sframes_t xfer_cnt; /* Number of frames */
+ u8 rw_flg; /* transfer status */
+ /* DMA status */
+ struct dma_chan *chan; /* DMA channel */
+ struct dma_async_tx_descriptor *tx_desc;
+ dma_cookie_t cookie;
+ struct sh_dmae_slave param;
+};
+
+struct siu_port {
+ unsigned long play_cap; /* Used to track full duplex */
+ struct snd_pcm *pcm;
+ struct siu_stream playback;
+ struct siu_stream capture;
+ u32 stfifo; /* STFIFO value from firmware */
+ u32 trdat; /* TRDAT value from firmware */
+};
+
+extern struct siu_port *siu_ports[SIU_PORT_NUM];
+
+static inline struct siu_port *siu_port_info(struct snd_pcm_substream *substream)
+{
+ struct platform_device *pdev =
+ to_platform_device(substream->pcm->card->dev);
+ return siu_ports[pdev->id];
+}
+
+/* Register access */
+static inline void siu_write32(u32 __iomem *addr, u32 val)
+{
+ __raw_writel(val, addr);
+}
+
+static inline u32 siu_read32(u32 __iomem *addr)
+{
+ return __raw_readl(addr);
+}
+
+/* SIU registers */
+#define SIU_IFCTL (0x000 / sizeof(u32))
+#define SIU_SRCTL (0x004 / sizeof(u32))
+#define SIU_SFORM (0x008 / sizeof(u32))
+#define SIU_CKCTL (0x00c / sizeof(u32))
+#define SIU_TRDAT (0x010 / sizeof(u32))
+#define SIU_STFIFO (0x014 / sizeof(u32))
+#define SIU_DPAK (0x01c / sizeof(u32))
+#define SIU_CKREV (0x020 / sizeof(u32))
+#define SIU_EVNTC (0x028 / sizeof(u32))
+#define SIU_SBCTL (0x040 / sizeof(u32))
+#define SIU_SBPSET (0x044 / sizeof(u32))
+#define SIU_SBFSTS (0x068 / sizeof(u32))
+#define SIU_SBDVCA (0x06c / sizeof(u32))
+#define SIU_SBDVCB (0x070 / sizeof(u32))
+#define SIU_SBACTIV (0x074 / sizeof(u32))
+#define SIU_DMAIA (0x090 / sizeof(u32))
+#define SIU_DMAIB (0x094 / sizeof(u32))
+#define SIU_DMAOA (0x098 / sizeof(u32))
+#define SIU_DMAOB (0x09c / sizeof(u32))
+#define SIU_DMAML (0x0a0 / sizeof(u32))
+#define SIU_SPSTS (0x0cc / sizeof(u32))
+#define SIU_SPCTL (0x0d0 / sizeof(u32))
+#define SIU_BRGASEL (0x100 / sizeof(u32))
+#define SIU_BRRA (0x104 / sizeof(u32))
+#define SIU_BRGBSEL (0x108 / sizeof(u32))
+#define SIU_BRRB (0x10c / sizeof(u32))
+
+extern struct snd_soc_platform_driver siu_platform;
+extern struct siu_info *siu_i2s_data;
+
+int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card);
+void siu_free_port(struct siu_port *port_info);
+
+#endif
+
+#endif /* SIU_H */