sound/soc/intel/sst-mfld-platform.h

   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
  26 extern 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
  40 struct 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
  49 enum 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
  57 enum sst_stream_ops {
  58         STREAM_OPS_PLAYBACK = 0,
  59         STREAM_OPS_CAPTURE,
  60 };
  61
  62 enum sst_audio_device_type {
  63         SND_SST_DEVICE_HEADSET = 1,
  64         SND_SST_DEVICE_IHF,
  65         SND_SST_DEVICE_VIBRA,
  66         SND_SST_DEVICE_HAPTIC,
  67         SND_SST_DEVICE_CAPTURE,
  68         SND_SST_DEVICE_COMPRESS,
  69 };
  70
  71 /* PCM Parameters */
  72 struct sst_pcm_params {
  73         u16 codec;      /* codec type */
  74         u8 num_chan;    /* 1=Mono, 2=Stereo */
  75         u8 pcm_wd_sz;   /* 16/24 - bit*/
  76         u32 reserved;   /* Bitrate in bits per second */
  77         u32 sfreq;      /* Sampling rate in Hz */
  78         u32 ring_buffer_size;
  79         u32 period_count;       /* period elapsed in samples*/
  80         u32 ring_buffer_addr;
  81 };
  82
  83 struct sst_stream_params {
  84         u32 result;
  85         u32 stream_id;
  86         u8 codec;
  87         u8 ops;
  88         u8 stream_type;
  89         u8 device_type;
  90         struct sst_pcm_params sparams;
  91 };
  92
  93 struct sst_compress_cb {
  94         void *param;
  95         void (*compr_cb)(void *param);
  96         void *drain_cb_param;
  97         void (*drain_notify)(void *param);
  98 };
  99
 100 struct compress_sst_ops {
 101         const char *name;
 102         int (*open)(struct device *dev,
 103                 struct snd_sst_params *str_params, struct sst_compress_cb *cb);
 104         int (*stream_start)(struct device *dev, unsigned int str_id);
 105         int (*stream_drop)(struct device *dev, unsigned int str_id);
 106         int (*stream_drain)(struct device *dev, unsigned int str_id);
 107         int (*stream_partial_drain)(struct device *dev, unsigned int str_id);
 108         int (*stream_pause)(struct device *dev, unsigned int str_id);
 109         int (*stream_pause_release)(struct device *dev, unsigned int str_id);
 110
 111         int (*tstamp)(struct device *dev, unsigned int str_id,
 112                         struct snd_compr_tstamp *tstamp);
 113         int (*ack)(struct device *dev, unsigned int str_id,
 114                         unsigned long bytes);
 115         int (*close)(struct device *dev, unsigned int str_id);
 116         int (*get_caps)(struct snd_compr_caps *caps);
 117         int (*get_codec_caps)(struct snd_compr_codec_caps *codec);
 118         int (*set_metadata)(struct device *dev, unsigned int str_id,
 119                         struct snd_compr_metadata *mdata);
 120 };
 121
 122 struct sst_ops {
 123         int (*open) (struct device *dev, struct snd_sst_params *str_param);
 124         int (*stream_init) (struct device *dev, struct pcm_stream_info *str_info);
 125         int (*stream_start) (struct device *dev, int str_id);
 126         int (*stream_drop) (struct device *dev, int str_id);
 127         int (*stream_pause) (struct device *dev, int str_id);
 128         int (*stream_pause_release) (struct device *dev, int str_id);
 129         int (*stream_read_tstamp) (struct device *dev, struct pcm_stream_info *str_info);
 130         int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
 131         int (*close) (struct device *dev, unsigned int str_id);
 132 };
 133
 134 struct sst_runtime_stream {
 135         int     stream_status;
 136         unsigned int id;
 137         size_t bytes_written;
 138         struct pcm_stream_info stream_info;
 139         struct sst_ops *ops;
 140         struct compress_sst_ops *compr_ops;
 141         spinlock_t      status_lock;
 142 };
 143
 144 struct sst_device {
 145         char *name;
 146         struct device *dev;
 147         struct sst_ops *ops;
 148         struct platform_device *pdev;
 149         struct compress_sst_ops *compr_ops;
 150 };
 151
 152 struct sst_data;
 153
 154 int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform);
 155 void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
 156 int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
 157                            struct snd_sst_params *str_params, bool is_compress);
 158
 159 struct 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 };
 166 struct sst_data {
 167         struct platform_device *pdev;
 168         struct sst_platform_data *pdata;
 169         struct snd_sst_bytes_v2 *byte_stream;
 170         struct mutex lock;
 171 };
 172 int sst_register_dsp(struct sst_device *sst);
 173 int sst_unregister_dsp(struct sst_device *sst);
 174 #endif