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authorClemens Ladisch <clemens@ladisch.de>2008-09-22 09:01:11 +0200
committerClemens Ladisch <clemens@ladisch.de>2008-09-22 09:01:11 +0200
commitc3f00739c5e45b4bf6f759172a5318256b92f2b2 (patch)
tree0ad1987783d637d13daa8731b634217f6be4ea3e /sound
parentfe10662c3c7e1a77cac7949a4b269622da663c2e (diff)
ALSA: virtuoso: create common functions for GPIO bit switch controls
Factor out the common code of the mixer callbacks that handle controls that just switch a single GPIO bit. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/oxygen/virtuoso.c53
1 files changed, 15 insertions, 38 deletions
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index c4ac91f8023..34baff19ad3 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -444,29 +444,31 @@ static void xonar_gpio_changed(struct oxygen *chip)
}
}
-static int alt_switch_get(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
+static int gpio_bit_switch_get(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
{
struct oxygen *chip = ctl->private_data;
+ u16 bit = ctl->private_value;
value->value.integer.value[0] =
- !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_D2_ALT);
+ !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & bit);
return 0;
}
-static int alt_switch_put(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
+static int gpio_bit_switch_put(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
{
struct oxygen *chip = ctl->private_data;
+ u16 bit = ctl->private_value;
u16 old_bits, new_bits;
int changed;
spin_lock_irq(&chip->reg_lock);
old_bits = oxygen_read16(chip, OXYGEN_GPIO_DATA);
if (value->value.integer.value[0])
- new_bits = old_bits | GPIO_D2_ALT;
+ new_bits = old_bits | bit;
else
- new_bits = old_bits & ~GPIO_D2_ALT;
+ new_bits = old_bits & ~bit;
changed = new_bits != old_bits;
if (changed)
oxygen_write16(chip, OXYGEN_GPIO_DATA, new_bits);
@@ -478,43 +480,18 @@ static const struct snd_kcontrol_new alt_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Loopback Switch",
.info = snd_ctl_boolean_mono_info,
- .get = alt_switch_get,
- .put = alt_switch_put,
+ .get = gpio_bit_switch_get,
+ .put = gpio_bit_switch_put,
+ .private_value = GPIO_D2_ALT,
};
-static int front_panel_get(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct oxygen *chip = ctl->private_data;
-
- value->value.integer.value[0] =
- !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_DX_FRONT_PANEL);
- return 0;
-}
-
-static int front_panel_put(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct oxygen *chip = ctl->private_data;
- u16 old_reg, new_reg;
-
- spin_lock_irq(&chip->reg_lock);
- old_reg = oxygen_read16(chip, OXYGEN_GPIO_DATA);
- if (value->value.integer.value[0])
- new_reg = old_reg | GPIO_DX_FRONT_PANEL;
- else
- new_reg = old_reg & ~GPIO_DX_FRONT_PANEL;
- oxygen_write16(chip, OXYGEN_GPIO_DATA, new_reg);
- spin_unlock_irq(&chip->reg_lock);
- return old_reg != new_reg;
-}
-
static const struct snd_kcontrol_new front_panel_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Front Panel Switch",
.info = snd_ctl_boolean_mono_info,
- .get = front_panel_get,
- .put = front_panel_put,
+ .get = gpio_bit_switch_get,
+ .put = gpio_bit_switch_put,
+ .private_value = GPIO_DX_FRONT_PANEL,
};
static void xonar_d1_ac97_switch(struct oxygen *chip,