| Vinod Koul | c514a91 | 2012-08-16 17:10:42 +0530 | [diff] [blame] | 1 | #ifndef __SST_DSP_H__ |
| 2 | #define __SST_DSP_H__ |
| 3 | /* |
| 4 | * sst_dsp.h - Intel SST Driver for audio engine |
| 5 | * |
| 6 | * Copyright (C) 2008-12 Intel Corporation |
| 7 | * Authors: Vinod Koul <vinod.koul@linux.intel.com> |
| 8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 9 | * |
| 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. |
| 13 | * |
| 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. |
| 18 | * |
| 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. |
| 22 | * |
| 23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 24 | */ |
| 25 | |
| 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 */ |
| 30 | SST_CODEC_TYPE_MP3, |
| 31 | SST_CODEC_TYPE_MP24, |
| 32 | SST_CODEC_TYPE_AAC, |
| 33 | SST_CODEC_TYPE_AACP, |
| 34 | SST_CODEC_TYPE_eAACP, |
| 35 | }; |
| 36 | |
| 37 | enum stream_type { |
| 38 | SST_STREAM_TYPE_NONE = 0, |
| 39 | SST_STREAM_TYPE_MUSIC = 1, |
| 40 | }; |
| 41 | |
| 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 */ |
| 48 | u8 use_offload_path; |
| 49 | u8 reserved2; |
| 50 | u16 reserved3; |
| 51 | u8 channel_map[8]; |
| 52 | } __packed; |
| 53 | |
| 54 | /* MP3 Music Parameters Message */ |
| 55 | struct snd_mp3_params { |
| 56 | u16 codec; |
| 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 */ |
| 62 | } __packed; |
| 63 | |
| 64 | #define AAC_BIT_STREAM_ADTS 0 |
| 65 | #define AAC_BIT_STREAM_ADIF 1 |
| 66 | #define AAC_BIT_STREAM_RAW 2 |
| 67 | |
| 68 | /* AAC Music Parameters Message */ |
| 69 | struct snd_aac_params { |
| 70 | u16 codec; |
| 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 */ |
| 75 | u16 reser2; |
| 76 | u32 externalsr; /*sampling rate of basic AAC raw bit stream*/ |
| 77 | u8 sbr_signalling;/*disable/enable/set automode the SBR tool.AAC+*/ |
| 78 | u8 reser1; |
| 79 | u16 reser3; |
| 80 | } __packed; |
| 81 | |
| 82 | /* WMA Music Parameters Message */ |
| 83 | struct snd_wma_params { |
| 84 | u16 codec; |
| 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 */ |
| 95 | } __packed; |
| 96 | |
| 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; |
| 103 | } __packed; |
| 104 | |
| 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 */ |
| 109 | }; |
| 110 | |
| 111 | struct snd_sst_alloc_params_ext { |
| 112 | struct sst_address_info ring_buf_info[8]; |
| 113 | u8 sg_count; |
| 114 | u8 reserved; |
| 115 | u16 reserved2; |
| 116 | u32 frag_size; /*Number of samples after which period elapsed |
| 117 | message is sent valid only if path = 0*/ |
| 118 | } __packed; |
| 119 | |
| 120 | struct snd_sst_stream_params { |
| 121 | union snd_sst_codec_params uc; |
| 122 | } __packed; |
| 123 | |
| 124 | struct snd_sst_params { |
| 125 | u32 stream_id; |
| 126 | u8 codec; |
| 127 | u8 ops; |
| 128 | u8 stream_type; |
| 129 | u8 device_type; |
| 130 | struct snd_sst_stream_params sparams; |
| 131 | struct snd_sst_alloc_params_ext aparams; |
| 132 | }; |
| 133 | |
| 134 | #endif /* __SST_DSP_H__ */ |