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ALSA: ice1724: Fix surround on Chaintech AV-710 

Fix the num_total_dacs setting for Chaintech AV710. The existing comment
that only PSDOUT0 is connected is correct, but since the card is using
packed AC97 mode to send 6 channels to the codec, num_total_dacs should be
set to 6 and not 2. This allows 6-channel surround to work. Also clarify
a comment regarding the additional WM8728 codec on this card (it's connected
to the SPDIF output and always receives the same data).

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Robert Hancock 2009-10-09 22:08:58 -06:00 committed by Takashi Iwai
parent 378e869fd0
commit 43189a38da
1 changed files with 5 additions and 3 deletions
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8
sound/pci/ice1712/amp.c
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@ -52,11 +52,13 @@ static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
/* only use basic functionality for now */
ice->num_total_dacs = 2; /* only PSDOUT0 is connected */
/* VT1616 6ch codec connected to PSDOUT0 using packed mode */
ice->num_total_dacs = 6;
ice->num_total_adcs = 2;
/* Chaintech AV-710 has another codecs, which need initialization */
/* initialize WM8728 codec */
/* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
(shared with the SPDIF output). Mixer control for this codec
is not yet supported. */
if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
wm_put(ice, wm_inits[i], wm_inits[i+1]);