ALSA: oxygen: support for period wakeup disabling

Allow disabling period wakeup interrupts for all PCM streams.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 10 insertions, 4 deletions

diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 814667442eb0..60e4aa00c042 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;