1 #ifndef __SST_MFLD_DSP_H__
2 #define __SST_MFLD_DSP_H__
4 * sst_mfld_dsp.h - Intel SST Driver for audio engine
6 * Copyright (C) 2008-12 Intel Corporation
7 * Authors: Vinod Koul <vinod.koul@linux.intel.com>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2 of the License.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
26 enum sst_codec_types {
27 /* AUDIO/MUSIC CODEC Type Definitions */
28 SST_CODEC_TYPE_UNKNOWN = 0,
29 SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
38 SST_STREAM_TYPE_NONE = 0,
39 SST_STREAM_TYPE_MUSIC = 1,
42 struct snd_pcm_params {
43 u16 codec; /* codec type */
44 u8 num_chan; /* 1=Mono, 2=Stereo */
45 u8 pcm_wd_sz; /* 16/24 - bit*/
46 u32 reserved; /* Bitrate in bits per second */
47 u32 sfreq; /* Sampling rate in Hz */
54 /* MP3 Music Parameters Message */
55 struct snd_mp3_params {
57 u8 num_chan; /* 1=Mono, 2=Stereo */
58 u8 pcm_wd_sz; /* 16/24 - bit*/
59 u8 crc_check; /* crc_check - disable (0) or enable (1) */
60 u8 reserved1; /* unused*/
61 u16 reserved2; /* Unused */
64 #define AAC_BIT_STREAM_ADTS 0
65 #define AAC_BIT_STREAM_ADIF 1
66 #define AAC_BIT_STREAM_RAW 2
68 /* AAC Music Parameters Message */
69 struct snd_aac_params {
71 u8 num_chan; /* 1=Mono, 2=Stereo*/
72 u8 pcm_wd_sz; /* 16/24 - bit*/
73 u8 bdownsample; /*SBR downsampling 0 - disable 1 -enabled AAC+ only */
74 u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
76 u32 externalsr; /*sampling rate of basic AAC raw bit stream*/
77 u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/
82 /* WMA Music Parameters Message */
83 struct snd_wma_params {
85 u8 num_chan; /* 1=Mono, 2=Stereo */
86 u8 pcm_wd_sz; /* 16/24 - bit*/
87 u32 brate; /* Use the hard coded value. */
88 u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
89 u32 channel_mask; /* Channel Mask */
90 u16 format_tag; /* Format Tag */
91 u16 block_align; /* packet size */
92 u16 wma_encode_opt;/* Encoder option */
93 u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
94 u8 reserved; /* reserved */
97 /* Codec params struture */
98 union snd_sst_codec_params {
99 struct snd_pcm_params pcm_params;
100 struct snd_mp3_params mp3_params;
101 struct snd_aac_params aac_params;
102 struct snd_wma_params wma_params;
105 /* Address and size info of a frame buffer */
106 struct sst_address_info {
107 u32 addr; /* Address at IA */
108 u32 size; /* Size of the buffer */
111 struct snd_sst_alloc_params_ext {
112 struct sst_address_info ring_buf_info[8];
116 u32 frag_size; /*Number of samples after which period elapsed
117 message is sent valid only if path = 0*/
120 struct snd_sst_stream_params {
121 union snd_sst_codec_params uc;
124 struct snd_sst_params {
130 struct snd_sst_stream_params sparams;
131 struct snd_sst_alloc_params_ext aparams;
134 #endif /* __SST_MFLD_DSP_H__ */