linux/sound/soc/intel/atom/sst-mfld-platform.h
<<
>>
Prefs
   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 struct snd_compr_ops sst_platform_compr_ops;
  29
  30#define SST_MONO                1
  31#define SST_STEREO              2
  32#define SST_MAX_CAP             5
  33
  34#define SST_MAX_BUFFER          (800*1024)
  35#define SST_MIN_BUFFER          (800*1024)
  36#define SST_MIN_PERIOD_BYTES    32
  37#define SST_MAX_PERIOD_BYTES    SST_MAX_BUFFER
  38#define SST_MIN_PERIODS         2
  39#define SST_MAX_PERIODS         (1024*2)
  40#define SST_FIFO_SIZE           0
  41
  42struct pcm_stream_info {
  43        int str_id;
  44        void *arg;
  45        void (*period_elapsed) (void *arg);
  46        unsigned long long buffer_ptr;
  47        unsigned long long pcm_delay;
  48        int sfreq;
  49};
  50
  51enum sst_drv_status {
  52        SST_PLATFORM_INIT = 1,
  53        SST_PLATFORM_STARTED,
  54        SST_PLATFORM_RUNNING,
  55        SST_PLATFORM_PAUSED,
  56        SST_PLATFORM_DROPPED,
  57};
  58
  59enum sst_stream_ops {
  60        STREAM_OPS_PLAYBACK = 0,
  61        STREAM_OPS_CAPTURE,
  62};
  63
  64enum sst_audio_device_type {
  65        SND_SST_DEVICE_HEADSET = 1,
  66        SND_SST_DEVICE_IHF,
  67        SND_SST_DEVICE_VIBRA,
  68        SND_SST_DEVICE_HAPTIC,
  69        SND_SST_DEVICE_CAPTURE,
  70        SND_SST_DEVICE_COMPRESS,
  71};
  72
  73/* PCM Parameters */
  74struct sst_pcm_params {
  75        u16 codec;      /* codec type */
  76        u8 num_chan;    /* 1=Mono, 2=Stereo */
  77        u8 pcm_wd_sz;   /* 16/24 - bit*/
  78        u32 reserved;   /* Bitrate in bits per second */
  79        u32 sfreq;      /* Sampling rate in Hz */
  80        u32 ring_buffer_size;
  81        u32 period_count;       /* period elapsed in samples*/
  82        u32 ring_buffer_addr;
  83};
  84
  85struct sst_stream_params {
  86        u32 result;
  87        u32 stream_id;
  88        u8 codec;
  89        u8 ops;
  90        u8 stream_type;
  91        u8 device_type;
  92        struct sst_pcm_params sparams;
  93};
  94
  95struct sst_compress_cb {
  96        void *param;
  97        void (*compr_cb)(void *param);
  98        void *drain_cb_param;
  99        void (*drain_notify)(void *param);
 100};
 101
 102struct compress_sst_ops {
 103        const char *name;
 104        int (*open)(struct device *dev,
 105                struct snd_sst_params *str_params, struct sst_compress_cb *cb);
 106        int (*stream_start)(struct device *dev, unsigned int str_id);
 107        int (*stream_drop)(struct device *dev, unsigned int str_id);
 108        int (*stream_drain)(struct device *dev, unsigned int str_id);
 109        int (*stream_partial_drain)(struct device *dev, unsigned int str_id);
 110        int (*stream_pause)(struct device *dev, unsigned int str_id);
 111        int (*stream_pause_release)(struct device *dev, unsigned int str_id);
 112
 113        int (*tstamp)(struct device *dev, unsigned int str_id,
 114                        struct snd_compr_tstamp *tstamp);
 115        int (*ack)(struct device *dev, unsigned int str_id,
 116                        unsigned long bytes);
 117        int (*close)(struct device *dev, unsigned int str_id);
 118        int (*get_caps)(struct snd_compr_caps *caps);
 119        int (*get_codec_caps)(struct snd_compr_codec_caps *codec);
 120        int (*set_metadata)(struct device *dev, unsigned int str_id,
 121                        struct snd_compr_metadata *mdata);
 122        int (*power)(struct device *dev, bool state);
 123};
 124
 125struct sst_ops {
 126        int (*open)(struct device *dev, struct snd_sst_params *str_param);
 127        int (*stream_init)(struct device *dev, struct pcm_stream_info *str_info);
 128        int (*stream_start)(struct device *dev, int str_id);
 129        int (*stream_drop)(struct device *dev, int str_id);
 130        int (*stream_pause)(struct device *dev, int str_id);
 131        int (*stream_pause_release)(struct device *dev, int str_id);
 132        int (*stream_read_tstamp)(struct device *dev, struct pcm_stream_info *str_info);
 133        int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
 134        int (*close)(struct device *dev, unsigned int str_id);
 135        int (*power)(struct device *dev, bool state);
 136};
 137
 138struct sst_runtime_stream {
 139        int     stream_status;
 140        unsigned int id;
 141        size_t bytes_written;
 142        struct pcm_stream_info stream_info;
 143        struct sst_ops *ops;
 144        struct compress_sst_ops *compr_ops;
 145        spinlock_t      status_lock;
 146};
 147
 148struct sst_device {
 149        char *name;
 150        struct device *dev;
 151        struct sst_ops *ops;
 152        struct platform_device *pdev;
 153        struct compress_sst_ops *compr_ops;
 154};
 155
 156struct sst_data;
 157
 158int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform);
 159int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute);
 160int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable);
 161int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable);
 162
 163void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
 164int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
 165                           struct snd_sst_params *str_params, bool is_compress);
 166
 167struct sst_algo_int_control_v2 {
 168        struct soc_mixer_control mc;
 169        u16 module_id; /* module identifieer */
 170        u16 pipe_id; /* location info: pipe_id + instance_id */
 171        u16 instance_id;
 172        unsigned int value; /* Value received is stored here */
 173};
 174struct sst_data {
 175        struct platform_device *pdev;
 176        struct sst_platform_data *pdata;
 177        struct snd_sst_bytes_v2 *byte_stream;
 178        struct mutex lock;
 179        struct snd_soc_card *soc_card;
 180        struct sst_cmd_sba_hw_set_ssp ssp_cmd;
 181};
 182int sst_register_dsp(struct sst_device *sst);
 183int sst_unregister_dsp(struct sst_device *sst);
 184#endif
 185