From 5495ffbd7b56d8bffebc5e30f03ea374590f1bb4 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Fri, 16 Sep 2011 23:16:05 +0200 Subject: ALSA: via82xx: allow to disable the SRC Add the PCM rule to allow disabling the PCM playback SRC. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/pci/via82xx.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'sound/pci/via82xx.c') diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index 35d5f43..c3656ff 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; -- cgit v1.1