diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-15 11:31:54 +1100 |
| commit | 6dc6472581f693b5fc95aebedf67b4960fb85cf0 (patch) | |
| tree | 06a5a9a08519950575505273eabced331ed51405 /sound/soc/blackfin/bf5xx-ac97.h | |
| parent | ee673eaa72d8d185012b1027a05e25aba18c267f (diff) | |
| parent | 8acd3a60bcca17c6d89c73cee3ad6057eb83ba1e (diff) | |
Merge commit 'origin'
Manual fixup of conflicts on:
arch/powerpc/include/asm/dcr-regs.h
drivers/net/ibm_newemac/core.h
Diffstat (limited to 'sound/soc/blackfin/bf5xx-ac97.h')
| -rw-r--r-- | sound/soc/blackfin/bf5xx-ac97.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sound/soc/blackfin/bf5xx-ac97.h b/sound/soc/blackfin/bf5xx-ac97.h new file mode 100644 index 00000000000..3f77cc558dc --- /dev/null +++ b/sound/soc/blackfin/bf5xx-ac97.h @@ -0,0 +1,36 @@ +/* + * 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 */ + u32 ac97_pcm; /* slot 3 and 4: left and right pcm data */ +} __attribute__ ((packed)); + +#define TAG_VALID 0x8000 +#define TAG_CMD 0x6000 +#define TAG_PCM_LEFT 0x1000 +#define TAG_PCM_RIGHT 0x0800 +#define TAG_PCM (TAG_PCM_LEFT | TAG_PCM_RIGHT) + +extern struct snd_soc_dai bfin_ac97_dai; + +void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u32 *src, \ + size_t count); + +void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u32 *dst, \ + size_t count); + +#endif |