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[ALSA] oxygen: fix pause handling 

Use the DMA_PAUSE register for pausing instead of stopping DMA.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch 2008-01-21 08:44:52 +01:00 committed by Jaroslav Kysela
parent c9946b2c80
commit db2396d495
1 changed files with 17 additions and 10 deletions
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27
sound/pci/oxygen/oxygen_pcm.c
View File

@ -570,16 +570,16 @@ static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd)
struct oxygen *chip = snd_pcm_substream_chip(substream); struct oxygen *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_substream *s; struct snd_pcm_substream *s;
unsigned int mask = 0; unsigned int mask = 0;
int running; int pausing;
switch (cmd) { switch (cmd) {
case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
running = 0;
break;
case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_START:
pausing = 0;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
running = 1; pausing = 1;
break; break;
default: default:
return -EINVAL; return -EINVAL;
@ -593,11 +593,18 @@ static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd)
} }
spin_lock(&chip->reg_lock); spin_lock(&chip->reg_lock);
if (running) if (!pausing) {
chip->pcm_running |= mask; if (cmd == SNDRV_PCM_TRIGGER_START)
else chip->pcm_running |= mask;
chip->pcm_running &= ~mask; else
oxygen_write8(chip, OXYGEN_DMA_STATUS, chip->pcm_running); chip->pcm_running &= ~mask;
oxygen_write8(chip, OXYGEN_DMA_STATUS, chip->pcm_running);
} else {
if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
oxygen_set_bits8(chip, OXYGEN_DMA_PAUSE, mask);
else
oxygen_clear_bits8(chip, OXYGEN_DMA_PAUSE, mask);
}
spin_unlock(&chip->reg_lock); spin_unlock(&chip->reg_lock);
return 0; return 0;
} }