From: David Henningsson <diwic@xxxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: David Henningsson <diwic@xxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
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;
--
2.26.2
