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Commit 2492250e authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Takashi Iwai
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ALSA: oxygen, virtuoso: fix exchanged L/R volumes of aux and CD inputs 



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: default avatarAbby Cedar <abbycedar@yahoo.com.au>
Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Cc: 2.6.31+ <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 927c9423

sound/pci/oxygen/oxygen_mixer.c

+14 −11
Original line number Diff line number Diff line
@@ -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);

	if (!stereo) {

		value->value.integer.value[0] = 31 - (reg & 0x1f);

	if (stereo)

		value->value.integer.value[1] = 31 - ((reg >> 8) & 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);