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authorDaniel Mack <daniel@caiaq.de>2009-04-27 12:18:05 +0200
committerTakashi Iwai <tiwai@suse.de>2009-04-27 12:32:52 +0200
commita9b487fa1e00b42f9667abfeca4a5295a71333db (patch)
treedcf782b896b9e9afc46af1086cd2ae99075c466d /sound/usb/caiaq/audio.c
parent936e7d03394bc6238091db10d060326622c87ed7 (diff)
ALSA: snd-usb-caiaq: fix reported elapsed periods
Reset the internal period position counter upon stream startup. This fixes initial aplay underruns and problems related to latency picky applications such as pulseaudio. Bumped the version number to 1.3.14. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/caiaq/audio.c')
-rw-r--r--sound/usb/caiaq/audio.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 3f45c0fe61a..b13ce767ac7 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -195,11 +195,14 @@ static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
debug("%s(%p)\n", __func__, substream);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ dev->period_out_count[index] = BYTES_PER_SAMPLE + 1;
dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1;
- else
+ } else {
+ dev->period_in_count[index] = BYTES_PER_SAMPLE;
dev->audio_in_buf_pos[index] = BYTES_PER_SAMPLE;
-
+ }
+
if (dev->streaming)
return 0;
@@ -300,8 +303,7 @@ static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev,
if (!sub)
continue;
- pb = frames_to_bytes(sub->runtime,
- sub->runtime->period_size);
+ pb = snd_pcm_lib_period_bytes(sub);
cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
&dev->period_out_count[stream] :
&dev->period_in_count[stream];