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authorClemens Ladisch <clemens@ladisch.de>2011-09-16 23:16:05 +0200
committerTakashi Iwai <tiwai@suse.de>2011-09-20 08:57:00 +0200
commit5495ffbd7b56d8bffebc5e30f03ea374590f1bb4 (patch)
treeef265f6de4b7c4e64a53f6618b129583d3ae6b0b /sound/pci/via82xx.c
parent57e5c63007955838043e34c732d224b2cbbb128f (diff)
ALSA: via82xx: allow to disable the SRC
Add the PCM rule to allow disabling the PCM playback SRC. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/via82xx.c')
-rw-r--r--sound/pci/via82xx.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 35d5f4313d9..c3656fffdb5 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1175,6 +1175,7 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
struct snd_pcm_runtime *runtime = substream->runtime;
int err;
struct via_rate_lock *ratep;
+ bool use_src = false;
runtime->hw = snd_via82xx_hw;
@@ -1196,6 +1197,7 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
SNDRV_PCM_RATE_8000_48000);
runtime->hw.rate_min = 8000;
runtime->hw.rate_max = 48000;
+ use_src = true;
} else if (! ratep->rate) {
int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
runtime->hw.rates = chip->ac97->rates[idx];
@@ -1212,6 +1214,12 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
+ if (use_src) {
+ err = snd_pcm_hw_rule_noresample(runtime, 48000);
+ if (err < 0)
+ return err;
+ }
+
runtime->private_data = viadev;
viadev->substream = substream;