Commit | Line | Data |
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f2028623 | 1 | /* |
7d156a25 | 2 | * sound/soc/blackfin/bf5xx-ac97.h |
f2028623 CC |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef _BF5XX_AC97_H | |
10 | #define _BF5XX_AC97_H | |
11 | ||
f2028623 CC |
12 | /* Frame format in memory, only support stereo currently */ |
13 | struct ac97_frame { | |
14 | u16 ac97_tag; /* slot 0 */ | |
15 | u16 ac97_addr; /* slot 1 */ | |
16 | u16 ac97_data; /* slot 2 */ | |
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17 | u16 ac97_pcm_l; /*slot 3:front left*/ |
18 | u16 ac97_pcm_r; /*slot 4:front left*/ | |
19 | #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) | |
20 | u16 ac97_mdm_l1; | |
21 | u16 ac97_center; /*slot 6:center*/ | |
22 | u16 ac97_sl; /*slot 7:surround left*/ | |
23 | u16 ac97_sr; /*slot 8:surround right*/ | |
24 | u16 ac97_lfe; /*slot 9:lfe*/ | |
25 | #endif | |
f2028623 CC |
26 | } __attribute__ ((packed)); |
27 | ||
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28 | /* Speaker location */ |
29 | #define SP_FL 0x0001 | |
30 | #define SP_FR 0x0010 | |
31 | #define SP_FC 0x0002 | |
32 | #define SP_LFE 0x0020 | |
33 | #define SP_SL 0x0004 | |
34 | #define SP_SR 0x0040 | |
35 | ||
36 | #define SP_STEREO (SP_FL | SP_FR) | |
37 | #define SP_2DOT1 (SP_FL | SP_FR | SP_LFE) | |
38 | #define SP_QUAD (SP_FL | SP_FR | SP_SL | SP_SR) | |
39 | #define SP_5DOT1 (SP_FL | SP_FR | SP_FC | SP_LFE | SP_SL | SP_SR) | |
40 | ||
f2028623 CC |
41 | #define TAG_VALID 0x8000 |
42 | #define TAG_CMD 0x6000 | |
43 | #define TAG_PCM_LEFT 0x1000 | |
44 | #define TAG_PCM_RIGHT 0x0800 | |
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45 | #define TAG_PCM_MDM_L1 0x0400 |
46 | #define TAG_PCM_CENTER 0x0200 | |
47 | #define TAG_PCM_SL 0x0100 | |
48 | #define TAG_PCM_SR 0x0080 | |
49 | #define TAG_PCM_LFE 0x0040 | |
f2028623 | 50 | |
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51 | void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \ |
52 | size_t count, unsigned int chan_mask); | |
f2028623 | 53 | |
67f854b9 | 54 | void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \ |
f2028623 CC |
55 | size_t count); |
56 | ||
57 | #endif |