Full support for Ginger Console
[linux-ginger.git] / sound / soc / blackfin / bf5xx-ac97.h
bloba1f97dd809d63fda550f4d62cd18a5a2c1eb7bde
1 /*
2 * sound/soc/blackfin/bf5xx-ac97.h
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 */
9 #ifndef _BF5XX_AC97_H
10 #define _BF5XX_AC97_H
12 extern struct snd_ac97_bus_ops bf5xx_ac97_ops;
13 extern struct snd_ac97 *ac97;
14 /* Frame format in memory, only support stereo currently */
15 struct ac97_frame {
16 u16 ac97_tag; /* slot 0 */
17 u16 ac97_addr; /* slot 1 */
18 u16 ac97_data; /* slot 2 */
19 u16 ac97_pcm_l; /*slot 3:front left*/
20 u16 ac97_pcm_r; /*slot 4:front left*/
21 #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT)
22 u16 ac97_mdm_l1;
23 u16 ac97_center; /*slot 6:center*/
24 u16 ac97_sl; /*slot 7:surround left*/
25 u16 ac97_sr; /*slot 8:surround right*/
26 u16 ac97_lfe; /*slot 9:lfe*/
27 #endif
28 } __attribute__ ((packed));
30 /* Speaker location */
31 #define SP_FL 0x0001
32 #define SP_FR 0x0010
33 #define SP_FC 0x0002
34 #define SP_LFE 0x0020
35 #define SP_SL 0x0004
36 #define SP_SR 0x0040
38 #define SP_STEREO (SP_FL | SP_FR)
39 #define SP_2DOT1 (SP_FL | SP_FR | SP_LFE)
40 #define SP_QUAD (SP_FL | SP_FR | SP_SL | SP_SR)
41 #define SP_5DOT1 (SP_FL | SP_FR | SP_FC | SP_LFE | SP_SL | SP_SR)
43 #define TAG_VALID 0x8000
44 #define TAG_CMD 0x6000
45 #define TAG_PCM_LEFT 0x1000
46 #define TAG_PCM_RIGHT 0x0800
47 #define TAG_PCM_MDM_L1 0x0400
48 #define TAG_PCM_CENTER 0x0200
49 #define TAG_PCM_SL 0x0100
50 #define TAG_PCM_SR 0x0080
51 #define TAG_PCM_LFE 0x0040
53 extern struct snd_soc_dai bfin_ac97_dai;
55 void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \
56 size_t count, unsigned int chan_mask);
58 void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \
59 size_t count);
61 #endif