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| author | Jurgen Kramer <gtmkramer@xs4all.nl> | 2014-09-05 10:47:56 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-09-08 17:11:00 +0200 |
| commit | d4288d3fac18bbc31cb6d369679b1fa1d9321ae9 (patch) | |
| tree | ae486894fa6aa5db6f1c4c7a2d5d39622b19b428 /include/sound | |
| parent | 7fd4394dfe1db02ba904dfa1048f718cbca822d1 (diff) | |
| download | linux-d4288d3fac18bbc31cb6d369679b1fa1d9321ae9.tar.gz linux-d4288d3fac18bbc31cb6d369679b1fa1d9321ae9.tar.bz2 linux-d4288d3fac18bbc31cb6d369679b1fa1d9321ae9.zip | |
ALSA: pcm: add new DSD sampleformat for native DSD playback on XMOS based devices
XMOS based USB DACs with native DSD support expose this feature via a USB
alternate setting. The audio format is either 32-bit raw or a 32-bit PCM format.
To utilize this feature on linux this patch introduces a new 32-bit DSD
sampleformat DSD_U32_LE.
A follow up patch will add a quirk for XMOS based devices to utilize the new format.
Further patches will add support to alsa-lib.
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/pcm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 67e0bdb9f0fa..e862497f7556 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -183,6 +183,7 @@ struct snd_pcm_ops { #define SNDRV_PCM_FMTBIT_G723_40_1B _SNDRV_PCM_FMTBIT(G723_40_1B) #define SNDRV_PCM_FMTBIT_DSD_U8 _SNDRV_PCM_FMTBIT(DSD_U8) #define SNDRV_PCM_FMTBIT_DSD_U16_LE _SNDRV_PCM_FMTBIT(DSD_U16_LE) +#define SNDRV_PCM_FMTBIT_DSD_U32_LE _SNDRV_PCM_FMTBIT(DSD_U32_LE) #ifdef SNDRV_LITTLE_ENDIAN #define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_LE |