mirror of https://gitee.com/openkylin/linux.git
156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
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* sst_platform.h - Intel MID Platform driver header file
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*
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* Copyright (C) 2010 Intel Corp
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* Author: Vinod Koul <vinod.koul@intel.com>
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* Author: Harsha Priya <priya.harsha@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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*
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*/
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#ifndef __SST_PLATFORMDRV_H__
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#define __SST_PLATFORMDRV_H__
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#include "sst_dsp.h"
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#define SST_MONO 1
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#define SST_STEREO 2
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#define SST_MAX_CAP 5
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#define SST_MIN_RATE 8000
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#define SST_MAX_RATE 48000
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#define SST_MIN_CHANNEL 1
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#define SST_MAX_CHANNEL 5
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#define SST_MAX_BUFFER (800*1024)
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#define SST_MIN_BUFFER (800*1024)
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#define SST_MIN_PERIOD_BYTES 32
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#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
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#define SST_MIN_PERIODS 2
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#define SST_MAX_PERIODS (1024*2)
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#define SST_FIFO_SIZE 0
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struct pcm_stream_info {
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int str_id;
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void *mad_substream;
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void (*period_elapsed) (void *mad_substream);
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unsigned long long buffer_ptr;
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int sfreq;
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};
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enum sst_drv_status {
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SST_PLATFORM_INIT = 1,
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SST_PLATFORM_STARTED,
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SST_PLATFORM_RUNNING,
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SST_PLATFORM_PAUSED,
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SST_PLATFORM_DROPPED,
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};
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enum sst_controls {
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SST_SND_ALLOC = 0x00,
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SST_SND_PAUSE = 0x01,
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SST_SND_RESUME = 0x02,
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SST_SND_DROP = 0x03,
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SST_SND_FREE = 0x04,
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SST_SND_BUFFER_POINTER = 0x05,
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SST_SND_STREAM_INIT = 0x06,
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SST_SND_START = 0x07,
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SST_MAX_CONTROLS = 0x07,
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};
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enum sst_stream_ops {
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STREAM_OPS_PLAYBACK = 0,
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STREAM_OPS_CAPTURE,
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};
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enum sst_audio_device_type {
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SND_SST_DEVICE_HEADSET = 1,
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SND_SST_DEVICE_IHF,
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SND_SST_DEVICE_VIBRA,
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SND_SST_DEVICE_HAPTIC,
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SND_SST_DEVICE_CAPTURE,
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SND_SST_DEVICE_COMPRESS,
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};
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/* PCM Parameters */
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struct sst_pcm_params {
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u16 codec; /* codec type */
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u8 num_chan; /* 1=Mono, 2=Stereo */
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u8 pcm_wd_sz; /* 16/24 - bit*/
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u32 reserved; /* Bitrate in bits per second */
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u32 sfreq; /* Sampling rate in Hz */
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u32 ring_buffer_size;
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u32 period_count; /* period elapsed in samples*/
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u32 ring_buffer_addr;
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};
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struct sst_stream_params {
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u32 result;
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u32 stream_id;
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u8 codec;
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u8 ops;
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u8 stream_type;
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u8 device_type;
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struct sst_pcm_params sparams;
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};
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struct sst_compress_cb {
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void *param;
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void (*compr_cb)(void *param);
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};
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struct compress_sst_ops {
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const char *name;
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int (*open) (struct snd_sst_params *str_params,
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struct sst_compress_cb *cb);
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int (*control) (unsigned int cmd, unsigned int str_id);
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int (*tstamp) (unsigned int str_id, struct snd_compr_tstamp *tstamp);
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int (*ack) (unsigned int str_id, unsigned long bytes);
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int (*close) (unsigned int str_id);
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int (*get_caps) (struct snd_compr_caps *caps);
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int (*get_codec_caps) (struct snd_compr_codec_caps *codec);
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};
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struct sst_ops {
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int (*open) (struct sst_stream_params *str_param);
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int (*device_control) (int cmd, void *arg);
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int (*close) (unsigned int str_id);
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};
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struct sst_runtime_stream {
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int stream_status;
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unsigned int id;
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size_t bytes_written;
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struct pcm_stream_info stream_info;
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struct sst_ops *ops;
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struct compress_sst_ops *compr_ops;
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spinlock_t status_lock;
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};
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struct sst_device {
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char *name;
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struct device *dev;
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struct sst_ops *ops;
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struct compress_sst_ops *compr_ops;
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};
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int sst_register_dsp(struct sst_device *sst);
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int sst_unregister_dsp(struct sst_device *sst);
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#endif
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