62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/*
|
|
* linux/sound/arm/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
|
|
|
|
extern struct snd_ac97_bus_ops bf5xx_ac97_ops;
|
|
extern struct snd_ac97 *ac97;
|
|
/* 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
|
|
|
|
extern struct snd_soc_dai bfin_ac97_dai;
|
|
|
|
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
|