[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

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