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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
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>
-rw-r--r--sound/usb/caiaq/audio.c12
-rw-r--r--sound/usb/caiaq/device.c2
2 files changed, 8 insertions, 6 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 3f45c0f..b13ce76 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];
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index 6d51770..515de1c 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -35,7 +35,7 @@
#include "input.h"
MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
-MODULE_DESCRIPTION("caiaq USB audio, version 1.3.13");
+MODULE_DESCRIPTION("caiaq USB audio, version 1.3.14");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
"{Native Instruments, RigKontrol3},"