From db2396d4959340dbe2b617bde3beb2268f1e3658 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 21 Jan 2008 08:44:52 +0100 Subject: [PATCH] [ALSA] oxygen: fix pause handling Use the DMA_PAUSE register for pausing instead of stopping DMA. Signed-off-by: Clemens Ladisch Signed-off-by: Jaroslav Kysela --- sound/pci/oxygen/oxygen_pcm.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index f147f97..31b0ccd 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -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; } -- 2.7.4