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Commit c3f00739 authored by Clemens Ladisch's avatar Clemens Ladisch
Browse files

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: default avatarClemens Ladisch <clemens@ladisch.de>
parent fe10662c

sound/pci/oxygen/virtuoso.c

+15 −38
Original line number Diff line number Diff line
@@ -444,29 +444,31 @@ static void xonar_gpio_changed(struct oxygen *chip) 
	}

}



static int alt_switch_get(struct snd_kcontrol *ctl,

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,

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,