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Commit 7b32486c authored by Raymond Yau's avatar Raymond Yau Committed by Takashi Iwai
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ALSA: Au88x0 - Support 4 channels playback when AC97 codecs has SDAC bit 



- Check SDAC bit of AC97 codec for supporting 4 channels playback.

Signed-off-by: default avatarRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ffe535ed

sound/pci/au88x0/au88x0.c

+5 −5
Original line number Diff line number Diff line
@@ -268,6 +268,11 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 
		card->shortname, chip->io, chip->irq);



	// (4) Alloc components.

	err = snd_vortex_mixer(chip);

	if (err < 0) {

		snd_card_free(card);

		return err;

	}

	// ADB pcm.

	if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {

		snd_card_free(card);
@@ -299,11 +304,6 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 
		return err;

	}

#endif

	// snd_ac97_mixer and Vortex mixer.

	if ((err = snd_vortex_mixer(chip)) < 0) {

		snd_card_free(card);

		return err;

	}

	if ((err = snd_vortex_midi(chip)) < 0) {

		snd_card_free(card);

		return err;

sound/pci/au88x0/au88x0_pcm.c

+1 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ static int snd_vortex_pcm_open(struct snd_pcm_substream *substream) 
			runtime->hw = snd_vortex_playback_hw_adb;

#ifdef CHIP_AU8830

		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&

			VORTEX_IS_QUAD(vortex) &&

			VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {

			runtime->hw.channels_max = 4;

			snd_pcm_hw_constraint_list(runtime, 0,