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Commit 62cbde18 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Add mic-mute LED control for HP laptop 



Some of new HP laptops have a LED for microphone (or recording) mute,
and it's controlled by GPIO pin 3.

Bind this with the capture switch to turn it on/off properly by the
mixer change.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b35cc822

sound/pci/hda/patch_sigmatel.c

+74 −10
Original line number Diff line number Diff line
@@ -103,6 +103,7 @@ enum { 
	STAC_HP_ZEPHYR,

	STAC_92HD83XXX_HP_LED,

	STAC_92HD83XXX_HP_INV_LED,

	STAC_92HD83XXX_HP_MIC_LED,

	STAC_92HD83XXX_MODELS

};
@@ -215,6 +216,9 @@ struct sigmatel_spec { 
	unsigned int vref_mute_led_nid; /* pin NID for mute-LED vref control */

	unsigned int vref_led;



	unsigned int mic_mute_led_gpio; /* capture mute LED GPIO */

	bool mic_mute_led_on; /* current mic mute state */



	/* stream */

	unsigned int stream_delay;
@@ -1679,6 +1683,7 @@ static const char * const stac92hd83xxx_models[STAC_92HD83XXX_MODELS] = { 
	[STAC_HP_ZEPHYR] = "hp-zephyr",

	[STAC_92HD83XXX_HP_LED] = "hp-led",

	[STAC_92HD83XXX_HP_INV_LED] = "hp-inv-led",

	[STAC_92HD83XXX_HP_MIC_LED] = "hp-mic-led",

};



static const struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = {
@@ -1703,6 +1708,8 @@ static const struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = { 
			  "HP", STAC_92HD83XXX_HP_cNB11_INTQUAD),

	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x165B,

			  "HP", STAC_92HD83XXX_HP_cNB11_INTQUAD),

	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x18df,

			  "HP Folio", STAC_92HD83XXX_HP_MIC_LED),

	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x3388,

			  "HP", STAC_92HD83XXX_HP_cNB11_INTQUAD),

	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x3389,
@@ -2791,7 +2798,8 @@ stac_control_new(struct sigmatel_spec *spec, 
	return knew;

}



static int stac92xx_add_control_temp(struct sigmatel_spec *spec,

static struct snd_kcontrol_new *

add_control_temp(struct sigmatel_spec *spec,

		 const struct snd_kcontrol_new *ktemp,

		 int idx, const char *name,

		 unsigned long val)
@@ -2799,10 +2807,18 @@ static int stac92xx_add_control_temp(struct sigmatel_spec *spec, 
	struct snd_kcontrol_new *knew = stac_control_new(spec, ktemp, name,

							 HDA_SUBDEV_AMP_FLAG);

	if (!knew)

		return -ENOMEM;

		return NULL;

	knew->index = idx;

	knew->private_value = val;

	return 0;

	return knew;

}



static int stac92xx_add_control_temp(struct sigmatel_spec *spec,

				     const struct snd_kcontrol_new *ktemp,

				     int idx, const char *name,

				     unsigned long val)

{

	return add_control_temp(spec, ktemp, idx, name, val) ? 0 : -ENOMEM;

}



static inline int stac92xx_add_control_idx(struct sigmatel_spec *spec,
@@ -3245,18 +3261,56 @@ static int create_multi_out_ctls(struct hda_codec *codec, int num_outs, 
	return 0;

}



static void stac_gpio_set(struct hda_codec *codec, unsigned int mask,

			  unsigned int dir_mask, unsigned int data);



/* hook for controlling mic-mute LED GPIO */

static int stac92xx_capture_sw_put_led(struct snd_kcontrol *kcontrol,

				       struct snd_ctl_elem_value *ucontrol)

{

	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);

	struct sigmatel_spec *spec = codec->spec;

	int err;

	bool mute;



	err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);

	if (err <= 0)

		return err;

	mute = !(ucontrol->value.integer.value[0] &&

		 ucontrol->value.integer.value[1]);

	if (spec->mic_mute_led_on != mute) {

		spec->mic_mute_led_on = mute;

		if (mute)

			spec->gpio_data |= spec->mic_mute_led_gpio;

		else

			spec->gpio_data &= ~spec->mic_mute_led_gpio;

		stac_gpio_set(codec, spec->gpio_mask,

			      spec->gpio_dir, spec->gpio_data);

	}

	return err;

}



static int stac92xx_add_capvol_ctls(struct hda_codec *codec, unsigned long vol,

				    unsigned long sw, int idx)

{

	struct sigmatel_spec *spec = codec->spec;

	struct snd_kcontrol_new *knew;

	int err;



	err = stac92xx_add_control_idx(codec->spec, STAC_CTL_WIDGET_VOL, idx,

				       "Capture Volume", vol);

	if (err < 0)

		return err;

	err = stac92xx_add_control_idx(codec->spec, STAC_CTL_WIDGET_MUTE, idx,

				       "Capture Switch", sw);

	if (err < 0)

		return err;



	knew = add_control_temp(spec,

				&stac92xx_control_templates[STAC_CTL_WIDGET_MUTE],

				idx, "Capture Switch", sw);

	if (!knew)

		return -ENOMEM;

	/* add a LED hook for some HP laptops */

	if (spec->mic_mute_led_gpio)

		knew->put = stac92xx_capture_sw_put_led;



	return 0;

}
@@ -5579,6 +5633,9 @@ again: 
	case STAC_92HD83XXX_HP_INV_LED:

		default_polarity = 1;

		break;

	case STAC_92HD83XXX_HP_MIC_LED:

		spec->mic_mute_led_gpio = 0x08; /* GPIO3 */

		break;

	}



	if (find_mute_led_cfg(codec, default_polarity))
@@ -5597,6 +5654,13 @@ again: 
		}

	}



	if (spec->mic_mute_led_gpio) {

		spec->gpio_mask |= spec->mic_mute_led_gpio;

		spec->gpio_dir |= spec->mic_mute_led_gpio;

		spec->mic_mute_led_on = true;

		spec->gpio_data |= spec->mic_mute_led_gpio;

	}



	err = stac92xx_parse_auto_config(codec);

	if (!err) {

		if (spec->board_config < 0) {