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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | #ifndef __SST_DSP_H__
#define __SST_DSP_H__
/*
* sst_dsp.h - Intel SST Driver for audio engine
*
* Copyright (C) 2008-12 Intel Corporation
* Authors: Vinod Koul <vinod.koul@linux.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.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
enum sst_codec_types {
/* AUDIO/MUSIC CODEC Type Definitions */
SST_CODEC_TYPE_UNKNOWN = 0,
SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
SST_CODEC_TYPE_MP3,
SST_CODEC_TYPE_MP24,
SST_CODEC_TYPE_AAC,
SST_CODEC_TYPE_AACP,
SST_CODEC_TYPE_eAACP,
};
enum stream_type {
SST_STREAM_TYPE_NONE = 0,
SST_STREAM_TYPE_MUSIC = 1,
};
struct snd_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 */
u8 use_offload_path;
u8 reserved2;
u16 reserved3;
u8 channel_map[8];
} __packed;
/* MP3 Music Parameters Message */
struct snd_mp3_params {
u16 codec;
u8 num_chan; /* 1=Mono, 2=Stereo */
u8 pcm_wd_sz; /* 16/24 - bit*/
u8 crc_check; /* crc_check - disable (0) or enable (1) */
u8 reserved1; /* unused*/
u16 reserved2; /* Unused */
} __packed;
#define AAC_BIT_STREAM_ADTS 0
#define AAC_BIT_STREAM_ADIF 1
#define AAC_BIT_STREAM_RAW 2
/* AAC Music Parameters Message */
struct snd_aac_params {
u16 codec;
u8 num_chan; /* 1=Mono, 2=Stereo*/
u8 pcm_wd_sz; /* 16/24 - bit*/
u8 bdownsample; /*SBR downsampling 0 - disable 1 -enabled AAC+ only */
u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
u16 reser2;
u32 externalsr; /*sampling rate of basic AAC raw bit stream*/
u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/
u8 reser1;
u16 reser3;
} __packed;
/* WMA Music Parameters Message */
struct snd_wma_params {
u16 codec;
u8 num_chan; /* 1=Mono, 2=Stereo */
u8 pcm_wd_sz; /* 16/24 - bit*/
u32 brate; /* Use the hard coded value. */
u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
u32 channel_mask; /* Channel Mask */
u16 format_tag; /* Format Tag */
u16 block_align; /* packet size */
u16 wma_encode_opt;/* Encoder option */
u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
u8 reserved; /* reserved */
} __packed;
/* Codec params struture */
union snd_sst_codec_params {
struct snd_pcm_params pcm_params;
struct snd_mp3_params mp3_params;
struct snd_aac_params aac_params;
struct snd_wma_params wma_params;
} __packed;
/* Address and size info of a frame buffer */
struct sst_address_info {
u32 addr; /* Address at IA */
u32 size; /* Size of the buffer */
};
struct snd_sst_alloc_params_ext {
struct sst_address_info ring_buf_info[8];
u8 sg_count;
u8 reserved;
u16 reserved2;
u32 frag_size; /*Number of samples after which period elapsed
message is sent valid only if path = 0*/
} __packed;
struct snd_sst_stream_params {
union snd_sst_codec_params uc;
} __packed;
struct snd_sst_params {
u32 stream_id;
u8 codec;
u8 ops;
u8 stream_type;
u8 device_type;
struct snd_sst_stream_params sparams;
struct snd_sst_alloc_params_ext aparams;
};
#endif /* __SST_DSP_H__ */
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