1#ifndef __SST_MFLD_DSP_H__
  2#define __SST_MFLD_DSP_H__
  3/*
  4 *  sst_mfld_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
 26enum 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
 37enum stream_type {
 38	SST_STREAM_TYPE_NONE = 0,
 39	SST_STREAM_TYPE_MUSIC = 1,
 40};
 41
 42struct 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 */
 55struct 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 */
 69struct 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 */
 83struct 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 */
 98union  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 */
106struct sst_address_info {
107	u32 addr; /* Address at IA */
108	u32 size; /* Size of the buffer */
109};
110
111struct 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
120struct snd_sst_stream_params {
121	union snd_sst_codec_params uc;
122} __packed;
123
124struct 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_MFLD_DSP_H__ */