ALSA: pcm_lib - return back hw_ptr_interrupt

[deliverable/linux.git] / include / sound / pcm.h

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index c83a4a79f16b2646279fa1e68e7516bd73f2c122..13bc83ca35fb1230c53550b82c388ca0aa5f7720 100644 (file)
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -262,6 +262,8 @@ struct snd_pcm_hw_constraint_list {
        unsigned int mask;
 };
 
+struct snd_pcm_hwptr_log;
+
 struct snd_pcm_runtime {
        /* -- Status -- */
        struct snd_pcm_substream *trigger_master;
@@ -310,7 +312,9 @@ struct snd_pcm_runtime {
        struct snd_pcm_mmap_control *control;
 
        /* -- locking / scheduling -- */
-       wait_queue_head_t sleep;
+       unsigned int twake: 1;          /* do transfer (!poll) wakeup */
+       wait_queue_head_t sleep;        /* poll sleep */
+       wait_queue_head_t tsleep;       /* transfer sleep */
        struct fasync_struct *fasync;
 
        /* -- private section -- */
@@ -340,6 +344,10 @@ struct snd_pcm_runtime {
        /* -- OSS things -- */
        struct snd_pcm_oss_runtime oss;
 #endif
+
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+       struct snd_pcm_hwptr_log *hwptr_log;
+#endif
 };
 
 struct snd_pcm_group {         /* keep linked substreams */
@@ -834,6 +842,8 @@ void snd_pcm_set_sync(struct snd_pcm_substream *substream);
 int snd_pcm_lib_interleave_len(struct snd_pcm_substream *substream);
 int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
                      unsigned int cmd, void *arg);                      
+int snd_pcm_update_state(struct snd_pcm_substream *substream,
+                        struct snd_pcm_runtime *runtime);
 int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
 int snd_pcm_playback_xrun_check(struct snd_pcm_substream *substream);
 int snd_pcm_capture_xrun_check(struct snd_pcm_substream *substream);