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: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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2 changed files with 6 additions and 5 deletions
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@ -268,6 +268,11 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
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card->shortname, chip->io, chip->irq);
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// (4) Alloc components.
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err = snd_vortex_mixer(chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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// ADB pcm.
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if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
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snd_card_free(card);
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@ -299,11 +304,6 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
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return err;
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}
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#endif
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// snd_ac97_mixer and Vortex mixer.
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if ((err = snd_vortex_mixer(chip)) < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_vortex_midi(chip)) < 0) {
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snd_card_free(card);
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return err;
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@ -168,6 +168,7 @@ static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
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runtime->hw = snd_vortex_playback_hw_adb;
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#ifdef CHIP_AU8830
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
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VORTEX_IS_QUAD(vortex) &&
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VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
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runtime->hw.channels_max = 4;
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snd_pcm_hw_constraint_list(runtime, 0,
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