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135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
#ifndef __SST_MFLD_DSP_H__
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#define __SST_MFLD_DSP_H__
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/*
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* sst_mfld_dsp.h - Intel SST Driver for audio engine
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*
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* Copyright (C) 2008-12 Intel Corporation
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* Authors: Vinod Koul <vinod.koul@linux.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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enum sst_codec_types {
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/* AUDIO/MUSIC CODEC Type Definitions */
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SST_CODEC_TYPE_UNKNOWN = 0,
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SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
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SST_CODEC_TYPE_MP3,
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SST_CODEC_TYPE_MP24,
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SST_CODEC_TYPE_AAC,
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SST_CODEC_TYPE_AACP,
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SST_CODEC_TYPE_eAACP,
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};
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enum stream_type {
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SST_STREAM_TYPE_NONE = 0,
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SST_STREAM_TYPE_MUSIC = 1,
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};
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struct snd_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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u8 use_offload_path;
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u8 reserved2;
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u16 reserved3;
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u8 channel_map[8];
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} __packed;
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/* MP3 Music Parameters Message */
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struct snd_mp3_params {
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u16 codec;
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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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u8 crc_check; /* crc_check - disable (0) or enable (1) */
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u8 reserved1; /* unused*/
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u16 reserved2; /* Unused */
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} __packed;
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#define AAC_BIT_STREAM_ADTS 0
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#define AAC_BIT_STREAM_ADIF 1
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#define AAC_BIT_STREAM_RAW 2
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/* AAC Music Parameters Message */
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struct snd_aac_params {
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u16 codec;
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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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u8 bdownsample; /*SBR downsampling 0 - disable 1 -enabled AAC+ only */
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u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
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u16 reser2;
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u32 externalsr; /*sampling rate of basic AAC raw bit stream*/
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u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/
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u8 reser1;
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u16 reser3;
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} __packed;
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/* WMA Music Parameters Message */
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struct snd_wma_params {
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u16 codec;
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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 brate; /* Use the hard coded value. */
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u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
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u32 channel_mask; /* Channel Mask */
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u16 format_tag; /* Format Tag */
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u16 block_align; /* packet size */
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u16 wma_encode_opt;/* Encoder option */
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u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
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u8 reserved; /* reserved */
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} __packed;
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/* Codec params struture */
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union snd_sst_codec_params {
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struct snd_pcm_params pcm_params;
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struct snd_mp3_params mp3_params;
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struct snd_aac_params aac_params;
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struct snd_wma_params wma_params;
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} __packed;
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/* Address and size info of a frame buffer */
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struct sst_address_info {
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u32 addr; /* Address at IA */
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u32 size; /* Size of the buffer */
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};
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struct snd_sst_alloc_params_ext {
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struct sst_address_info ring_buf_info[8];
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u8 sg_count;
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u8 reserved;
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u16 reserved2;
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u32 frag_size; /*Number of samples after which period elapsed
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message is sent valid only if path = 0*/
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} __packed;
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struct snd_sst_stream_params {
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union snd_sst_codec_params uc;
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} __packed;
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struct snd_sst_params {
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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 snd_sst_stream_params sparams;
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struct snd_sst_alloc_params_ext aparams;
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};
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#endif /* __SST_MFLD_DSP_H__ */
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