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-rw-r--r--include/sound/pcm.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 6268a4192d5..45c1981c9ca 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -71,6 +71,8 @@ struct snd_pcm_ops {
int (*prepare)(struct snd_pcm_substream *substream);
int (*trigger)(struct snd_pcm_substream *substream, int cmd);
snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);
+ int (*wall_clock)(struct snd_pcm_substream *substream,
+ struct timespec *audio_ts);
int (*copy)(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos,
void __user *buf, snd_pcm_uframes_t count);
@@ -281,6 +283,7 @@ struct snd_pcm_runtime {
unsigned long hw_ptr_jiffies; /* Time when hw_ptr is updated */
unsigned long hw_ptr_buffer_jiffies; /* buffer time in jiffies */
snd_pcm_sframes_t delay; /* extra delay; typically FIFO size */
+ u64 hw_ptr_wrap; /* offset for hw_ptr due to boundary wrap-around */
/* -- HW params -- */
snd_pcm_access_t access; /* access mode */