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Commit 5495ffbd authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Takashi Iwai
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ALSA: via82xx: allow to disable the SRC 



Add the PCM rule to allow disabling the PCM playback SRC.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 57e5c630

sound/pci/via82xx.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -1175,6 +1175,7 @@ static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev, 
	struct snd_pcm_runtime *runtime = substream->runtime;

	struct snd_pcm_runtime *runtime = substream->runtime;

	int err;

	int err;

	struct via_rate_lock *ratep;

	struct via_rate_lock *ratep;

	bool use_src = false;





	runtime->hw = snd_via82xx_hw;

	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);

				     SNDRV_PCM_RATE_8000_48000);

		runtime->hw.rate_min = 8000;

		runtime->hw.rate_min = 8000;

		runtime->hw.rate_max = 48000;

		runtime->hw.rate_max = 48000;

		use_src = true;

	} else if (! ratep->rate) {

	} else if (! ratep->rate) {

		int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;

		int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;

		runtime->hw.rates = chip->ac97->rates[idx];

		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)

	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)

		return err;

		return err;





	if (use_src) {

		err = snd_pcm_hw_rule_noresample(runtime, 48000);

		if (err < 0)

			return err;

	}



	runtime->private_data = viadev;

	runtime->private_data = viadev;

	viadev->substream = substream;

	viadev->substream = substream;