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TOMOYO Linux Cross Reference
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 
 27 extern struct sst_device *sst;
 28 extern 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 
 44 struct 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 
 53 enum 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 
 61 enum sst_stream_ops {
 62         STREAM_OPS_PLAYBACK = 0,
 63         STREAM_OPS_CAPTURE,
 64 };
 65 
 66 enum 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 */
 76 struct 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 
 87 struct 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 
 97 struct 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 
104 struct 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 
127 struct 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 
140 struct 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 
150 struct 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 
158 struct sst_data;
159 
160 int sst_dsp_init_v2_dpcm(struct snd_soc_component *component);
161 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute);
162 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable);
163 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable);
164 
165 void sst_set_stream_status(struct sst_runtime_stream *stream, int state);
166 int sst_fill_stream_params(void *substream, const struct sst_data *ctx,
167                            struct snd_sst_params *str_params, bool is_compress);
168 
169 struct 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 };
176 struct 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 };
184 int sst_register_dsp(struct sst_device *sst);
185 int sst_unregister_dsp(struct sst_device *sst);
186 #endif
187 

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