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-rw-r--r--sound/core/pcm_local.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/core/pcm_local.h b/sound/core/pcm_local.h
index 17a1a5d87098..e3b3558aeab6 100644
--- a/sound/core/pcm_local.h
+++ b/sound/core/pcm_local.h
@@ -63,6 +63,7 @@ static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {}
void __snd_pcm_xrun(struct snd_pcm_substream *substream);
void snd_pcm_group_init(struct snd_pcm_group *group);
+void snd_pcm_sync_stop(struct snd_pcm_substream *substream, bool sync_irq);
#ifdef CONFIG_SND_DMA_SGBUF
struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
@@ -71,4 +72,10 @@ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
+/* loop over all PCM substreams */
+#define for_each_pcm_substream(pcm, str, subs) \
+ for ((str) = 0; (str) < 2; (str)++) \
+ for ((subs) = (pcm)->streams[str].substream; (subs); \
+ (subs) = (subs)->next)
+
#endif /* __SOUND_CORE_PCM_LOCAL_H */