[alsa-devel] [PATCH 2/2] rate: dynamic update avail_min on slave

[Jiada Wang]

From: Andreas Pape <apape at de.adit-jv.com>

Signed-off-by: Andreas Pape <apape at de.adit-jv.com>
Signed-off-by: Jiada Wang <jiada_wang at mentor.com>
---
 src/pcm/pcm_plugin.c | 2 +-
 src/pcm/pcm_plugin.h | 3 +++
 src/pcm/pcm_rate.c   | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/pcm/pcm_plugin.c b/src/pcm/pcm_plugin.c
index c78316b..e045732 100644
--- a/src/pcm/pcm_plugin.c
+++ b/src/pcm/pcm_plugin.c
@@ -535,7 +535,7 @@ static int snd_pcm_plugin_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
 	return 0;
 }
 
-static int snd_pcm_plugin_may_wait_for_avail_min(snd_pcm_t *pcm, snd_pcm_uframes_t avail)
+int snd_pcm_plugin_may_wait_for_avail_min(snd_pcm_t *pcm, snd_pcm_uframes_t avail)
 {
 	if (pcm->stream == SND_PCM_STREAM_CAPTURE &&
 	    pcm->access != SND_PCM_ACCESS_RW_INTERLEAVED &&
diff --git a/src/pcm/pcm_plugin.h b/src/pcm/pcm_plugin.h
index 217f075..95aacb3 100644
--- a/src/pcm/pcm_plugin.h
+++ b/src/pcm/pcm_plugin.h
@@ -50,6 +50,8 @@ typedef struct {
 /* make local functions really local */
 #define snd_pcm_plugin_init \
 	snd1_pcm_plugin_init
+#define snd_pcm_plugin_may_wait_for_avail_min \
+	snd1_pcm_plugin_may_wait_for_avail_min
 #define snd_pcm_plugin_fast_ops \
 	snd1_pcm_plugin_fast_ops
 #define snd_pcm_plugin_undo_read_generic \
@@ -64,6 +66,7 @@ typedef struct {
 void snd_pcm_plugin_init(snd_pcm_plugin_t *plugin);
 snd_pcm_sframes_t snd_pcm_plugin_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
 snd_pcm_sframes_t snd_pcm_plugin_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
+int snd_pcm_plugin_may_wait_for_avail_min(snd_pcm_t *pcm, snd_pcm_uframes_t avail);
 
 extern const snd_pcm_fast_ops_t snd_pcm_plugin_fast_ops;
 
diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 6184def..b0a1a48 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -1156,7 +1156,7 @@ static const snd_pcm_fast_ops_t snd_pcm_rate_fast_ops = {
 	.poll_descriptors_count = snd_pcm_generic_poll_descriptors_count,
 	.poll_descriptors = snd_pcm_generic_poll_descriptors,
 	.poll_revents = snd_pcm_rate_poll_revents,
-	.may_wait_for_avail_min = snd_pcm_generic_may_wait_for_avail_min,
+	.may_wait_for_avail_min = snd_pcm_plugin_may_wait_for_avail_min,
 };
 
 static const snd_pcm_ops_t snd_pcm_rate_ops = {
-- 
2.9.3