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/*
* sst_platform.h - Intel MID Platform driver header file
*
* Copyright (C) 2010 Intel Corp
* Author: Vinod Koul <vinod.koul@intel.com>
* Author: Harsha Priya <priya.harsha@intel.com>
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*
*/
#ifndef __SST_PLATFORMDRV_H__
#define __SST_PLATFORMDRV_H__
#include "sst_dsp.h"
#define SST_MONO 1
#define SST_STEREO 2
#define SST_MAX_CAP 5
#define SST_MAX_BUFFER (800*1024)
#define SST_MIN_BUFFER (800*1024)
#define SST_MIN_PERIOD_BYTES 32
#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
#define SST_MIN_PERIODS 2
#define SST_MAX_PERIODS (1024*2)
#define SST_FIFO_SIZE 0
struct pcm_stream_info {
int str_id;
void *mad_substream;
void (*period_elapsed) (void *mad_substream);
unsigned long long buffer_ptr;
int sfreq;
};
enum sst_drv_status {
SST_PLATFORM_INIT = 1,
SST_PLATFORM_STARTED,
SST_PLATFORM_RUNNING,
SST_PLATFORM_PAUSED,
SST_PLATFORM_DROPPED,
};
enum sst_controls {
SST_SND_ALLOC = 0x00,
SST_SND_PAUSE = 0x01,
SST_SND_RESUME = 0x02,
SST_SND_DROP = 0x03,
SST_SND_FREE = 0x04,
SST_SND_BUFFER_POINTER = 0x05,
SST_SND_STREAM_INIT = 0x06,
SST_SND_START = 0x07,
SST_MAX_CONTROLS = 0x07,
};
enum sst_stream_ops {
STREAM_OPS_PLAYBACK = 0,
STREAM_OPS_CAPTURE,
};
enum sst_audio_device_type {
SND_SST_DEVICE_HEADSET = 1,
SND_SST_DEVICE_IHF,
SND_SST_DEVICE_VIBRA,
SND_SST_DEVICE_HAPTIC,
SND_SST_DEVICE_CAPTURE,
SND_SST_DEVICE_COMPRESS,
};
/* PCM Parameters */
struct sst_pcm_params {
u16 codec; /* codec type */
u8 num_chan; /* 1=Mono, 2=Stereo */
u8 pcm_wd_sz; /* 16/24 - bit*/
u32 reserved; /* Bitrate in bits per second */
u32 sfreq; /* Sampling rate in Hz */
u32 ring_buffer_size;
u32 period_count; /* period elapsed in samples*/
u32 ring_buffer_addr;
};
struct sst_stream_params {
u32 result;
u32 stream_id;
u8 codec;
u8 ops;
u8 stream_type;
u8 device_type;
struct sst_pcm_params sparams;
};
struct sst_compress_cb {
void *param;
void (*compr_cb)(void *param);
};
struct compress_sst_ops {
const char *name;
int (*open) (struct snd_sst_params *str_params,
struct sst_compress_cb *cb);
int (*control) (unsigned int cmd, unsigned int str_id);
int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
int (*ack) (unsigned int str_id, unsigned long bytes);
int (*close) (unsigned int str_id);
int (*get_caps) (struct snd_compr_caps *caps);
int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
int (*set_metadata) (unsigned int str_id,
struct snd_compr_metadata *mdata);
};
struct sst_ops {
int (*open) (struct sst_stream_params *str_param);
int (*device_control) (int cmd, void *arg);
int (*close) (unsigned int str_id);
};
struct sst_runtime_stream {
int stream_status;
unsigned int id;
size_t bytes_written;
struct pcm_stream_info stream_info;
struct sst_ops *ops;
struct compress_sst_ops *compr_ops;
spinlock_t status_lock;
};
struct sst_device {
char *name;
struct device *dev;
struct sst_ops *ops;
struct compress_sst_ops *compr_ops;
};
int sst_register_dsp(struct sst_device *sst);
int sst_unregister_dsp(struct sst_device *sst);
#endif
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