| /* |
| * sound/soc/blackfin/bf5xx-ac97.h |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef _BF5XX_AC97_H |
| #define _BF5XX_AC97_H |
| |
| /* Frame format in memory, only support stereo currently */ |
| struct ac97_frame { |
| u16 ac97_tag; /* slot 0 */ |
| u16 ac97_addr; /* slot 1 */ |
| u16 ac97_data; /* slot 2 */ |
| u16 ac97_pcm_l; /*slot 3:front left*/ |
| u16 ac97_pcm_r; /*slot 4:front left*/ |
| #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) |
| u16 ac97_mdm_l1; |
| u16 ac97_center; /*slot 6:center*/ |
| u16 ac97_sl; /*slot 7:surround left*/ |
| u16 ac97_sr; /*slot 8:surround right*/ |
| u16 ac97_lfe; /*slot 9:lfe*/ |
| #endif |
| } __attribute__ ((packed)); |
| |
| /* Speaker location */ |
| #define SP_FL 0x0001 |
| #define SP_FR 0x0010 |
| #define SP_FC 0x0002 |
| #define SP_LFE 0x0020 |
| #define SP_SL 0x0004 |
| #define SP_SR 0x0040 |
| |
| #define SP_STEREO (SP_FL | SP_FR) |
| #define SP_2DOT1 (SP_FL | SP_FR | SP_LFE) |
| #define SP_QUAD (SP_FL | SP_FR | SP_SL | SP_SR) |
| #define SP_5DOT1 (SP_FL | SP_FR | SP_FC | SP_LFE | SP_SL | SP_SR) |
| |
| #define TAG_VALID 0x8000 |
| #define TAG_CMD 0x6000 |
| #define TAG_PCM_LEFT 0x1000 |
| #define TAG_PCM_RIGHT 0x0800 |
| #define TAG_PCM_MDM_L1 0x0400 |
| #define TAG_PCM_CENTER 0x0200 |
| #define TAG_PCM_SL 0x0100 |
| #define TAG_PCM_SR 0x0080 |
| #define TAG_PCM_LFE 0x0040 |
| |
| void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \ |
| size_t count, unsigned int chan_mask); |
| |
| void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \ |
| size_t count); |
| |
| #endif |
