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Commit 387fb6a2 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Takashi Iwai
Browse files

[ALSA] virtuoso: add GPIO 1 mixer control 



Add a mixer control for switching whatever it is that is connected to
GPIO pin 1 on the Xonar DX.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 1d98c7d4

sound/pci/oxygen/virtuoso.c

+53 −0
Original line number Diff line number Diff line
@@ -470,6 +470,53 @@ static const struct snd_kcontrol_new alt_switch = { 
	.put = alt_switch_put,

};



static int unknown_info(struct snd_kcontrol *ctl,

			struct snd_ctl_elem_info *info)

{

	info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;

	info->count = 1;

	info->value.enumerated.items = 2;

	if (info->value.enumerated.item > 1)

		info->value.enumerated.item = 1;

	sprintf(info->value.enumerated.name, "%u", info->value.enumerated.item);

	return 0;

}



static int unknown_get(struct snd_kcontrol *ctl,

		       struct snd_ctl_elem_value *value)

{

	struct oxygen *chip = ctl->private_data;



	value->value.enumerated.item[0] =

		!!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_DX_UNKNOWN1);

	return 0;

}



static int unknown_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.enumerated.item[0])

		new_reg = old_reg | GPIO_DX_UNKNOWN1;

	else

		new_reg = old_reg & ~GPIO_DX_UNKNOWN1;

	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 unknown_switch = {

	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,

	.name = "PanelConfig?",

	.info = unknown_info,

	.get = unknown_get,

	.put = unknown_put,

};



static void xonar_dx_ac97_switch(struct oxygen *chip,

				 unsigned int reg, unsigned int mute)

{
@@ -515,6 +562,11 @@ static int xonar_mixer_init(struct oxygen *chip) 
	return snd_ctl_add(chip->card, snd_ctl_new1(&alt_switch, chip));

}



static int xonar_dx_mixer_init(struct oxygen *chip)

{

	return snd_ctl_add(chip->card, snd_ctl_new1(&unknown_switch, chip));

}



static const struct oxygen_model xonar_models[] = {

	[MODEL_D2] = {

		.shortname = "Xonar D2",
@@ -574,6 +626,7 @@ static const struct oxygen_model xonar_models[] = { 
		.owner = THIS_MODULE,

		.init = xonar_dx_init,

		.control_filter = xonar_dx_control_filter,

		.mixer_init = xonar_dx_mixer_init,

		.cleanup = xonar_dx_cleanup,

		.set_dac_params = set_cs43xx_params,

		.set_adc_params = set_cs53x1_params,