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 snd_sst_params *str_params,
 103                         struct sst_compress_cb *cb);
 104         int (*control) (unsigned int cmd, unsigned int str_id);
 105         int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
 106         int (*ack) (unsigned int str_id, unsigned long bytes);
 107         int (*close) (unsigned int str_id);
 108         int (*get_caps) (struct snd_compr_caps *caps);
 109         int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
 110         int (*set_metadata) (unsigned int str_id,
 111                         struct snd_compr_metadata *mdata);
 112
 113 };
 114
 115 struct sst_ops {
 116         int (*open) (struct device *dev, struct snd_sst_params *str_param);
 117         int (*stream_init) (struct device *dev, struct pcm_stream_info *str_info);
 118         int (*stream_start) (struct device *dev, int str_id);
 119         int (*stream_drop) (struct device *dev, int str_id);
 120         int (*stream_pause) (struct device *dev, int str_id);
 121         int (*stream_pause_release) (struct device *dev, int str_id);
 122         int (*stream_read_tstamp) (struct device *dev, struct pcm_stream_info *str_info);
 123         int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes);
 124         int (*close) (struct device *dev, unsigned int str_id);
 125 };
 126
 127 struct sst_runtime_stream {
 128         int     stream_status;
 129         unsigned int id;
 130         size_t bytes_written;
 131         struct pcm_stream_info stream_info;
 132         struct sst_ops *ops;
 133         struct compress_sst_ops *compr_ops;
 134         spinlock_t      status_lock;
 135 };
 136
 137 struct sst_device {
 138         char *name;
 139         struct device *dev;
 140         struct sst_ops *ops;
 141         struct platform_device *pdev;
 142         struct compress_sst_ops *compr_ops;
 143 };
 144
 145 struct sst_data;
 146 void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
 147 int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
 148                            struct snd_sst_params *str_params, bool is_compress);
 149
 150 struct sst_algo_int_control_v2 {
 151         struct soc_mixer_control mc;
 152         u16 module_id; /* module identifieer */
 153         u16 pipe_id; /* location info: pipe_id + instance_id */
 154         u16 instance_id;
 155         unsigned int value; /* Value received is stored here */
 156 };
 157 struct sst_data {
 158         struct platform_device *pdev;
 159         struct sst_platform_data *pdata;
 160         struct mutex lock;
 161 };
 162 int sst_register_dsp(struct sst_device *sst);
 163 int sst_unregister_dsp(struct sst_device *sst);
 164 #endif