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path: root/sound/pci/cs5535audio/cs5535audio_pcm.c
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Diffstat (limited to 'sound/pci/cs5535audio/cs5535audio_pcm.c')
-rw-r--r--sound/pci/cs5535audio/cs5535audio_pcm.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index cdcda87..0f48a87 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -260,6 +260,9 @@ static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream,
err = cs5535audio_build_dma_packets(cs5535au, dma, substream,
params_periods(hw_params),
params_period_bytes(hw_params));
+ if (!err)
+ dma->pcm_open_flag = 1;
+
return err;
}
@@ -268,6 +271,15 @@ static int snd_cs5535audio_hw_free(struct snd_pcm_substream *substream)
struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
struct cs5535audio_dma *dma = substream->runtime->private_data;
+ if (dma->pcm_open_flag) {
+ if (substream == cs5535au->playback_substream)
+ snd_ac97_update_power(cs5535au->ac97,
+ AC97_PCM_FRONT_DAC_RATE, 0);
+ else
+ snd_ac97_update_power(cs5535au->ac97,
+ AC97_PCM_LR_ADC_RATE, 0);
+ dma->pcm_open_flag = 0;
+ }
cs5535audio_clear_dma_packets(cs5535au, dma, substream);
return snd_pcm_lib_free_pages(substream);
}
@@ -351,11 +363,14 @@ static int snd_cs5535audio_capture_open(struct snd_pcm_substream *substream)
if ((err = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
+ olpc_capture_open(cs5535au->ac97);
return 0;
}
static int snd_cs5535audio_capture_close(struct snd_pcm_substream *substream)
{
+ struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
+ olpc_capture_close(cs5535au->ac97);
return 0;
}
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