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ALSA: oxygen, virtuoso: fix exchanged L/R volumes of aux and CD inputs

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The driver accidentally exchanged the left/right fields for stereo AC'97
mixer registers.  This affected only the aux and CD inputs because the
line input bypasses the AC'97 codec and the mic input is mono; cards
without AC'97 (Xonar DS/DG/HDAV Slim, HG2PCI, HiFier) were not affected.

Reported-and-tested-by: Abby Cedar <abbycedar@yahoo.com.au>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: 2.6.31+ <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2012-02-04 20:56:47 +01:00 committed by Takashi Iwai
parent 927c9423dd
commit 2492250e44
1 changed files with 14 additions and 11 deletions
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25
sound/pci/oxygen/oxygen_mixer.c
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@ -618,9 +618,12 @@ static int ac97_volume_get(struct snd_kcontrol *ctl,
mutex_lock(&chip->mutex);
reg = oxygen_read_ac97(chip, codec, index);
mutex_unlock(&chip->mutex);
value->value.integer.value[0] = 31 - (reg & 0x1f);
if (stereo)
value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f);
if (!stereo) {
value->value.integer.value[0] = 31 - (reg & 0x1f);
} else {
value->value.integer.value[0] = 31 - ((reg >> 8) & 0x1f);
value->value.integer.value[1] = 31 - (reg & 0x1f);
}
return 0;
}
@ -636,14 +639,14 @@ static int ac97_volume_put(struct snd_kcontrol *ctl,
mutex_lock(&chip->mutex);
oldreg = oxygen_read_ac97(chip, codec, index);
newreg = oldreg;
newreg = (newreg & ~0x1f) |
(31 - (value->value.integer.value[0] & 0x1f));
if (stereo)
newreg = (newreg & ~0x1f00) |
((31 - (value->value.integer.value[1] & 0x1f)) << 8);
else
newreg = (newreg & ~0x1f00) | ((newreg & 0x1f) << 8);
if (!stereo) {
newreg = oldreg & ~0x1f;
newreg |= 31 - (value->value.integer.value[0] & 0x1f);
} else {
newreg = oldreg & ~0x1f1f;
newreg |= (31 - (value->value.integer.value[0] & 0x1f)) << 8;
newreg |= 31 - (value->value.integer.value[1] & 0x1f);
}
change = newreg != oldreg;
if (change)
oxygen_write_ac97(chip, codec, index, newreg);