Merge branch 'topic/asoc' into for-linus

1 files changed, 193 insertions, 0 deletions

diff --git a/sound/soc/sh/siu.h b/sound/soc/sh/siu.h
new file mode 100644
index 000000000000..9cc04ab2bce7
--- /dev/null
+++ b/sound/soc/sh/siu.h
@@ -0,0 +1,193 @@
+/*
+ * 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 <asm/dma-sh.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc-dai.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 siu_info {
+        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 siu_platform;
+extern struct snd_soc_dai siu_i2s_dai;
+
+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 */