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authorJaroslav Kysela <perex@perex.cz>2008-01-11 08:45:08 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:29:54 +0100
commit8c12158687fc78091730d5456336b7efbf6f2250 (patch)
treef5b27075a4fde3f3eabbe7f05a12fec5559664b6 /include/sound
parenta64135a2d880183a2aff149f42dab7779a37a67f (diff)
downloadlinux-8c12158687fc78091730d5456336b7efbf6f2250.tar.gz
[ALSA] PCM interface - rename SNDRV_PCM_TSTAMP_MMAP to SNDRV_PCM_TSTAMP_ENABLE
Change semantics for SNDRV_PCM_TSTAMP_MMAP. Doing timestamping only in the interrupt handler might cause that hw_ptr is not related to actual timestamp. With this change, grab timestamp at every hw_ptr update to have always valid timestamp + ring buffer position pair. With this change, SNDRV_PCM_TSTAMP_MMAP was renamed to SNDRV_PCM_TSTAMP_ENABLE. It's no regression (I think). Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/asound.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/sound/asound.h b/include/sound/asound.h
index 069d9120e62..3eaf155b850 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -354,8 +354,8 @@ struct snd_pcm_hw_params {
enum {
SNDRV_PCM_TSTAMP_NONE = 0,
- SNDRV_PCM_TSTAMP_MMAP,
- SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_MMAP,
+ SNDRV_PCM_TSTAMP_ENABLE,
+ SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
};
struct snd_pcm_sw_params {