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authorTakashi Iwai <tiwai@suse.de>2010-07-05 15:37:27 +0200
committerTakashi Iwai <tiwai@suse.de>2010-07-05 15:37:27 +0200
commit65ee2ba3105f6ca3b8814d993682d4f21a1f0d8d (patch)
treee08471a6470f6c3a38e839e7d0d42e7d40e837e7 /sound/core
parentb415ec7041429bb2cde3419e9556049fe12bf27a (diff)
parent08b450988905505d12f7671bc24b8da73631d327 (diff)
downloadlinux-65ee2ba3105f6ca3b8814d993682d4f21a1f0d8d.tar.bz2
Merge branch 'devel' of git://git.alsa-project.org/alsa-kernel into topic/misc
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_lib.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index e9d98be190c5..bcf95d3ff5c7 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -287,8 +287,11 @@ int snd_pcm_update_state(struct snd_pcm_substream *substream,
return -EPIPE;
}
}
- if (avail >= runtime->control->avail_min)
- wake_up(runtime->twake ? &runtime->tsleep : &runtime->sleep);
+ if (runtime->twake) {
+ if (avail >= runtime->twake)
+ wake_up(&runtime->tsleep);
+ } else if (avail >= runtime->control->avail_min)
+ wake_up(&runtime->sleep);
return 0;
}
@@ -1707,7 +1710,7 @@ EXPORT_SYMBOL(snd_pcm_period_elapsed);
* The available space is stored on availp. When err = 0 and avail = 0
* on the capture stream, it indicates the stream is in DRAINING state.
*/
-static int wait_for_avail_min(struct snd_pcm_substream *substream,
+static int wait_for_avail(struct snd_pcm_substream *substream,
snd_pcm_uframes_t *availp)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -1757,7 +1760,7 @@ static int wait_for_avail_min(struct snd_pcm_substream *substream,
avail = snd_pcm_playback_avail(runtime);
else
avail = snd_pcm_capture_avail(runtime);
- if (avail >= runtime->control->avail_min)
+ if (avail >= runtime->twake)
break;
}
_endloop:
@@ -1820,7 +1823,7 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
goto _end_unlock;
}
- runtime->twake = 1;
+ runtime->twake = runtime->control->avail_min ? : 1;
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
snd_pcm_uframes_t avail;
@@ -1833,7 +1836,9 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
err = -EAGAIN;
goto _end_unlock;
}
- err = wait_for_avail_min(substream, &avail);
+ runtime->twake = min_t(snd_pcm_uframes_t, size,
+ runtime->control->avail_min ? : 1);
+ err = wait_for_avail(substream, &avail);
if (err < 0)
goto _end_unlock;
}
@@ -2042,7 +2047,7 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
goto _end_unlock;
}
- runtime->twake = 1;
+ runtime->twake = runtime->control->avail_min ? : 1;
while (size > 0) {
snd_pcm_uframes_t frames, appl_ptr, appl_ofs;
snd_pcm_uframes_t avail;
@@ -2060,7 +2065,9 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
err = -EAGAIN;
goto _end_unlock;
}
- err = wait_for_avail_min(substream, &avail);
+ runtime->twake = min_t(snd_pcm_uframes_t, size,
+ runtime->control->avail_min ? : 1);
+ err = wait_for_avail(substream, &avail);
if (err < 0)
goto _end_unlock;
if (!avail)