linux/sound/soc/intel/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
  26extern struct sst_device *sst;
  27
  28#define SST_MONO                1
  29#define SST_STEREO              2
  30#define SST_MAX_CAP             5
  31
  32#define SST_MAX_BUFFER          (800*1024)
  33#define SST_MIN_BUFFER          (800*1024)
  34#define SST_MIN_PERIOD_BYTES    32
  35#define SST_MAX_PERIOD_BYTES    SST_MAX_BUFFER
  36#define SST_MIN_PERIODS         2
  37#define SST_MAX_PERIODS         (1024*2)
  38#define SST_FIFO_SIZE           0
  39
  40struct pcm_stream_info {
  41        int str_id;
  42        void *arg;
  43        void (*period_elapsed) (void *arg);
  44        unsigned long long buffer_ptr;
  45        unsigned long long pcm_delay;
  46        int sfreq;
  47};
  48
  49enum sst_drv_status {
  50        SST_PLATFORM_INIT = 1,
  51        SST_PLATFORM_STARTED,
  52        SST_PLATFORM_RUNNING,
  53        SST_PLATFORM_PAUSED,
  54        SST_PLATFORM_DROPPED,
  55};
  56
  57enum sst_controls {
  58        SST_SND_ALLOC =                 0x00,
  59        SST_SND_PAUSE =                 0x01,
  60        SST_SND_RESUME =                0x02,
  61        SST_SND_DROP =                  0x03,
  62        SST_SND_FREE =                  0x04,
  63        SST_SND_BUFFER_POINTER =        0x05,
  64        SST_SND_STREAM_INIT =           0x06,
  65        SST_SND_START    =              0x07,
  66        SST_SET_BYTE_STREAM =           0x100A,
  67        SST_GET_BYTE_STREAM =           0x100B,
  68        SST_MAX_CONTROLS = SST_GET_BYTE_STREAM,
  69};
  70
  71enum sst_stream_ops {
  72        STREAM_OPS_PLAYBACK = 0,
  73        STREAM_OPS_CAPTURE,
  74};
  75
  76enum sst_audio_device_type {
  77        SND_SST_DEVICE_HEADSET = 1,
  78        SND_SST_DEVICE_IHF,
  79        SND_SST_DEVICE_VIBRA,
  80        SND_SST_DEVICE_HAPTIC,
  81        SND_SST_DEVICE_CAPTURE,
  82        SND_SST_DEVICE_COMPRESS,
  83};
  84
  85/* PCM Parameters */
  86struct sst_pcm_params {
  87        u16 codec;      /* codec type */
  88        u8 num_chan;    /* 1=Mono, 2=Stereo */
  89        u8 pcm_wd_sz;   /* 16/24 - bit*/
  90        u32 reserved;   /* Bitrate in bits per second */
  91        u32 sfreq;      /* Sampling rate in Hz */
  92        u32 ring_buffer_size;
  93        u32 period_count;       /* period elapsed in samples*/
  94        u32 ring_buffer_addr;
  95};
  96
  97struct sst_stream_params {
  98        u32 result;
  99        u32 stream_id;
 100        u8 codec;
 101        u8 ops;
 102        u8 stream_type;
 103        u8 device_type;
 104        struct sst_pcm_params sparams;
 105};
 106
 107struct sst_compress_cb {
 108        void *param;
 109        void (*compr_cb)(void *param);
 110        void *drain_cb_param;
 111        void (*drain_notify)(void *param);
 112};
 113
 114struct compress_sst_ops {
 115        const char *name;
 116        int (*open) (struct snd_sst_params *str_params,
 117                        struct sst_compress_cb *cb);
 118        int (*control) (unsigned int cmd, unsigned int str_id);
 119        int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
 120        int (*ack) (unsigned int str_id, unsigned long bytes);
 121        int (*close) (unsigned int str_id);
 122        int (*get_caps) (struct snd_compr_caps *caps);
 123        int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
 124        int (*set_metadata) (unsigned int str_id,
 125                        struct snd_compr_metadata *mdata);
 126
 127};
 128
 129struct sst_ops {
 130        int (*open) (struct snd_sst_params *str_param);
 131        int (*device_control) (int cmd, void *arg);
 132        int (*set_generic_params)(enum sst_controls cmd, void *arg);
 133        int (*close) (unsigned int str_id);
 134};
 135
 136struct sst_runtime_stream {
 137        int     stream_status;
 138        unsigned int id;
 139        size_t bytes_written;
 140        struct pcm_stream_info stream_info;
 141        struct sst_ops *ops;
 142        struct compress_sst_ops *compr_ops;
 143        spinlock_t      status_lock;
 144};
 145
 146struct sst_device {
 147        char *name;
 148        struct device *dev;
 149        struct sst_ops *ops;
 150        struct platform_device *pdev;
 151        struct compress_sst_ops *compr_ops;
 152};
 153
 154struct sst_data;
 155void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
 156int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
 157                           struct snd_sst_params *str_params, bool is_compress);
 158
 159struct sst_algo_int_control_v2 {
 160        struct soc_mixer_control mc;
 161        u16 module_id; /* module identifieer */
 162        u16 pipe_id; /* location info: pipe_id + instance_id */
 163        u16 instance_id;
 164        unsigned int value; /* Value received is stored here */
 165};
 166struct sst_data {
 167        struct platform_device *pdev;
 168        struct sst_platform_data *pdata;
 169        struct mutex lock;
 170};
 171int sst_register_dsp(struct sst_device *sst);
 172int sst_unregister_dsp(struct sst_device *sst);
 173#endif
 174