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>

diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 762bb10..b8bc115 100644 (file)
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -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;

diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 0488633..0ef2f97 100644 (file)
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -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,