linux/sound/soc/intel/atom/sst-mfld-platform.h
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   1/*
   2 *  sst_mfld_platform.h - Intel MID Platform driver header file
   3 *
   4 *  Copyright (C) 2010 Intel Corp
   5 *  Author: Vinod Koul <vinod.koul@intel.com>
   6 *  Author: Harsha Priya <priya.harsha@intel.com>
   7 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   8 *
   9 *  This program is free software; you can redistribute it and/or modify
  10 *  it under the terms of the GNU General Public License as published by
  11 *  the Free Software Foundation; version 2 of the License.
  12 *
  13 *  This program is distributed in the hope that it will be useful, but
  14 *  WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 *  General Public License for more details.
  17 *
  18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  19 */
  20
  21#ifndef __SST_PLATFORMDRV_H__
  22#define __SST_PLATFORMDRV_H__
  23
  24#include "sst-mfld-dsp.h"
  25#include "sst-atom-controls.h"
  26
  27extern struct sst_device *sst;
  28extern const struct snd_compr_ops sst_platform_compr_ops;
  29
  30#define DRV_NAME "sst"
  31
  32#define SST_MONO                1
  33#define SST_STEREO              2
  34#define SST_MAX_CAP             5
  35
  36#define SST_MAX_BUFFER          (800*1024)
  37#define SST_MIN_BUFFER          (800*1024)
  38#define SST_MIN_PERIOD_BYTES    32
  39#define SST_MAX_PERIOD_BYTES    SST_MAX_BUFFER
  40#define SST_MIN_PERIODS         2
  41#define SST_MAX_PERIODS         (1024*2)
  42#define SST_FIFO_SIZE           0
  43
  44struct pcm_stream_info {
  45        int str_id;
  46        void *arg;
  47        void (*period_elapsed) (void *arg);
  48        unsigned long long buffer_ptr;
  49        unsigned long long pcm_delay;
  50        int sfreq;
  51};
  52
  53enum sst_drv_status {
  54        SST_PLATFORM_INIT = 1,
  55        SST_PLATFORM_STARTED,
  56        SST_PLATFORM_RUNNING,
  57        SST_PLATFORM_PAUSED,
  58        SST_PLATFORM_DROPPED,
  59};
  60
  61enum sst_stream_ops {
  62        STREAM_OPS_PLAYBACK = 0,
  63        STREAM_OPS_CAPTURE,
  64};
  65
  66enum sst_audio_device_type {
  67        SND_SST_DEVICE_HEADSET = 1,
  68        SND_SST_DEVICE_IHF,
  69        SND_SST_DEVICE_VIBRA,
  70        SND_SST_DEVICE_HAPTIC,
  71        SND_SST_DEVICE_CAPTURE,
  72        SND_SST_DEVICE_COMPRESS,
  73};
  74
  75/* PCM Parameters */
  76struct sst_pcm_params {
  77        u16 codec;      /* codec type */
  78        u8 num_chan;    /* 1=Mono, 2=Stereo */
  79        u8 pcm_wd_sz;   /* 16/24 - bit*/
  80        u32 reserved;   /* Bitrate in bits per second */
  81        u32 sfreq;      /* Sampling rate in Hz */
  82        u32 ring_buffer_size;
  83        u32 period_count;       /* period elapsed in samples*/
  84        u32 ring_buffer_addr;
  85};
  86
  87struct sst_stream_params {
  88        u32 result;
  89        u32 stream_id;
  90        u8 codec;
  91        u8 ops;
  92        u8 stream_type;
  93        u8 device_type;
  94        struct sst_pcm_params sparams;
  95};
  96
  97struct sst_compress_cb {
  98        void *param;
  99        void (*compr_cb)(void *param);
 100        void *drain_cb_param;
 101        void (*drain_notify)(void *param);
 102};
 103
 104struct compress_sst_ops {
 105        const char *name;
 106        int (*open)(struct device *dev,
 107                struct snd_sst_params *str_params, struct sst_compress_cb *cb);
 108        int (*stream_start)(struct device *dev, unsigned int str_id);
 109        int (*stream_drop)(struct device *dev, unsigned int str_id);
 110        int (*stream_drain)(struct device *dev, unsigned int str_id);
 111        int (*stream_partial_drain)(struct device *dev, unsigned int str_id);
 112        int (*stream_pause)(struct device *dev, unsigned int str_id);
 113        int (*stream_pause_release)(struct device *dev, unsigned int str_id);
 114
 115        int (*tstamp)(struct device *dev, unsigned int str_id,
 116                        struct snd_compr_tstamp *tstamp);
 117        int (*ack)(struct device *dev, unsigned int str_id,
 118                        unsigned long bytes);
 119        int (*close)(struct device *dev, unsigned int str_id);
 120        int (*get_caps)(struct snd_compr_caps *caps);
 121        int (*get_codec_caps)(struct snd_compr_codec_caps *codec);
 122        int (*set_metadata)(struct device *dev, unsigned int str_id,
 123                        struct snd_compr_metadata *mdata);
 124        int (*power)(struct device *dev, bool state);
 125};
 126
 127struct sst_ops {
 128        int (*open)(struct device *dev, struct snd_sst_params *str_param);
 129        int (*stream_init)(struct device *dev, struct pcm_stream_info *str_info);
 130        int (*stream_start)(struct device *dev, int str_id);
 131        int (*stream_drop)(struct device *dev, int str_id);
 132        int (*stream_pause)(struct device *dev, int str_id);
 133        int (*stream_pause_release)(struct device *dev, int str_id);
 134        int (*stream_read_tstamp)(struct device *dev, struct pcm_stream_info *str_info);
 135        int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
 136        int (*close)(struct device *dev, unsigned int str_id);
 137        int (*power)(struct device *dev, bool state);
 138};
 139
 140struct sst_runtime_stream {
 141        int     stream_status;
 142        unsigned int id;
 143        size_t bytes_written;
 144        struct pcm_stream_info stream_info;
 145        struct sst_ops *ops;
 146        struct compress_sst_ops *compr_ops;
 147        spinlock_t      status_lock;
 148};
 149
 150struct sst_device {
 151        char *name;
 152        struct device *dev;
 153        struct sst_ops *ops;
 154        struct platform_device *pdev;
 155        struct compress_sst_ops *compr_ops;
 156};
 157
 158struct sst_data;
 159
 160int sst_dsp_init_v2_dpcm(struct snd_soc_component *component);
 161int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute);
 162int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable);
 163int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable);
 164
 165void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
 166int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
 167                           struct snd_sst_params *str_params, bool is_compress);
 168
 169struct sst_algo_int_control_v2 {
 170        struct soc_mixer_control mc;
 171        u16 module_id; /* module identifieer */
 172        u16 pipe_id; /* location info: pipe_id + instance_id */
 173        u16 instance_id;
 174        unsigned int value; /* Value received is stored here */
 175};
 176struct sst_data {
 177        struct platform_device *pdev;
 178        struct sst_platform_data *pdata;
 179        struct snd_sst_bytes_v2 *byte_stream;
 180        struct mutex lock;
 181        struct snd_soc_card *soc_card;
 182        struct sst_cmd_sba_hw_set_ssp ssp_cmd;
 183};
 184int sst_register_dsp(struct sst_device *sst);
 185int sst_unregister_dsp(struct sst_device *sst);
 186#endif
 187