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[ALSA] oxygen: make line-in switch exclusive 

The line input cannot be mixed with the other inputs, so we have to mute
the other input switches when it is selected.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch 2008-01-14 08:57:05 +01:00 committed by Jaroslav Kysela
parent 01a3affb2e
commit 893e44ba5a
2 changed files with 33 additions and 1 deletions
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4
sound/pci/oxygen/oxygen.h
View File

@ -18,6 +18,10 @@
enum {
CONTROL_SPDIF_PCM,
CONTROL_SPDIF_INPUT_BITS,
CONTROL_MIC_CAPTURE_SWITCH,
CONTROL_LINE_CAPTURE_SWITCH,
CONTROL_CD_CAPTURE_SWITCH,
CONTROL_AUX_CAPTURE_SWITCH,
CONTROL_COUNT
};

30
sound/pci/oxygen/oxygen_mixer.c
View File

@ -402,6 +402,19 @@ static int ac97_switch_get(struct snd_kcontrol *ctl,
return 0;
}
static void ac97_mute_ctl(struct oxygen *chip, unsigned int control)
{
unsigned int index = chip->controls[control]->private_value & 0xff;
u16 value;
value = oxygen_read_ac97(chip, 0, index);
if (!(value & 0x8000)) {
oxygen_write_ac97(chip, 0, index, value | 0x8000);
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->controls[control]->id);
}
}
static int ac97_switch_put(struct snd_kcontrol *ctl,
struct snd_ctl_elem_value *value)
{
@ -422,9 +435,20 @@ static int ac97_switch_put(struct snd_kcontrol *ctl,
change = newreg != oldreg;
if (change) {
oxygen_write_ac97(chip, 0, index, newreg);
if (index == AC97_LINE)
if (index == AC97_LINE) {
oxygen_write_ac97_masked(chip, 0, 0x72,
!!(newreg & 0x8000), 0x0001);
if (!(newreg & 0x8000)) {
ac97_mute_ctl(chip, CONTROL_MIC_CAPTURE_SWITCH);
ac97_mute_ctl(chip, CONTROL_CD_CAPTURE_SWITCH);
ac97_mute_ctl(chip, CONTROL_AUX_CAPTURE_SWITCH);
}
} else if ((index == AC97_MIC || index == AC97_CD ||
index == AC97_VIDEO || index == AC97_AUX) &&
bitnr == 15 && !(newreg & 0x8000)) {
ac97_mute_ctl(chip, CONTROL_LINE_CAPTURE_SWITCH);
oxygen_write_ac97_masked(chip, 0, 0x72, 0x0001, 0x0001);
}
}
mutex_unlock(&chip->mutex);
return change;
@ -600,6 +624,10 @@ int oxygen_mixer_init(struct oxygen *chip)
SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
[CONTROL_SPDIF_INPUT_BITS] =
SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
[CONTROL_MIC_CAPTURE_SWITCH] = "Mic Capture Switch",
[CONTROL_LINE_CAPTURE_SWITCH] = "Line Capture Switch",
[CONTROL_CD_CAPTURE_SWITCH] = "CD Capture Switch",
[CONTROL_AUX_CAPTURE_SWITCH] = "Aux Capture Switch",
};
unsigned int i, j;
struct snd_kcontrol *ctl;