From: David Henningsson diwic@ubuntu.com
These are mostly a copy-paste from the kernel headers. But since functions snd_pcm_audio_tstamp_config make use of these they should be added to the public API as well.
Reported-by: Alex Moon alex.r.moon@gmail.com Signed-off-by: David Henningsson diwic@ubuntu.com Signed-off-by: Takashi Iwai tiwai@suse.de --- include/pcm.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/include/pcm.h b/include/pcm.h index 5b0782315585..cf1eea8bbc9b 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -350,6 +350,20 @@ typedef enum _snd_pcm_tstamp_type { SND_PCM_TSTAMP_TYPE_LAST = SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW, } snd_pcm_tstamp_type_t;
+typedef enum _snd_pcm_audio_tstamp_type { + /** + * first definition for backwards compatibility only, + * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else + */ + SND_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, + SND_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /**< DMA time, reported as per hw_ptr */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /**< link time reported by sample or wallclock counter, reset on startup */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /**< link time reported by sample or wallclock counter, not reset on startup */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /**< link time estimated indirectly */ + SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /**< link time synchronized with system time */ + SND_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED +} snd_pcm_audio_tstamp_type_t; + typedef struct _snd_pcm_audio_tstamp_config { /* 5 of max 16 bits used */ unsigned int type_requested:4;