From 075140ea8bf1405057c072a84ccf4e0d3f2c76f5 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 15 Nov 2010 10:50:37 +0100 Subject: [PATCH] ALSA: oxygen: support for period wakeup disabling Allow disabling period wakeup interrupts for all PCM streams. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/pci/oxygen/oxygen_pcm.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index 8146674..60e4aa0 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -39,7 +39,8 @@ static const struct snd_pcm_hardware oxygen_stereo_hardware = { SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_SYNC_START, + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, .rates = SNDRV_PCM_RATE_32000 | @@ -65,7 +66,8 @@ static const struct snd_pcm_hardware oxygen_multichannel_hardware = { SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_SYNC_START, + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, .rates = SNDRV_PCM_RATE_32000 | @@ -91,7 +93,8 @@ static const struct snd_pcm_hardware oxygen_ac97_hardware = { SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_SYNC_START, + SNDRV_PCM_INFO_SYNC_START | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, .formats = SNDRV_PCM_FMTBIT_S16_LE, .rates = SNDRV_PCM_RATE_48000, .rate_min = 48000, @@ -530,7 +533,10 @@ static int oxygen_prepare(struct snd_pcm_substream *substream) oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); - chip->interrupt_mask |= channel_mask; + if (substream->runtime->no_period_wakeup) + chip->interrupt_mask &= ~channel_mask; + else + chip->interrupt_mask |= channel_mask; oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); spin_unlock_irq(&chip->reg_lock); return 0; -- 2.7.4