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Commit a7655be5 authored by Laxminath Kasam's avatar Laxminath Kasam
Browse files

ASoC: wcd9335: update impedance detection and mono/stereo mix controls 



Add mixer controls to be exposed to userspace for getting impedance
detection and plug type whether mono or stereo.

Change-Id: I6b587a1c16f507acf99370725b3c098346c42d5e
Signed-off-by: default avatarLaxminath Kasam <lkasam@codeaurora.org>
parent 7b658221

sound/soc/codecs/wcd9335.c

+60 −0
Original line number Diff line number Diff line
@@ -1765,6 +1765,61 @@ static int tasha_get_iir_enable_audio_mixer( 
	return 0;

}



static int tasha_hph_impedance_get(struct snd_kcontrol *kcontrol,

				   struct snd_ctl_elem_value *ucontrol)

{

	uint32_t zl, zr;

	bool hphr;

	struct soc_multi_mixer_control *mc;

	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);

	struct tasha_priv *priv = snd_soc_codec_get_drvdata(codec);



	mc = (struct soc_multi_mixer_control *)(kcontrol->private_value);

	hphr = mc->shift;

	wcd_mbhc_get_impedance(&priv->mbhc, &zl, &zr);

	dev_dbg(codec->dev, "%s: zl=%u(ohms), zr=%u(ohms)\n", __func__, zl, zr);

	ucontrol->value.integer.value[0] = hphr ? zr : zl;



	return 0;

}



static const struct snd_kcontrol_new impedance_detect_controls[] = {

	SOC_SINGLE_EXT("HPHL Impedance", 0, 0, UINT_MAX, 0,

		       tasha_hph_impedance_get, NULL),

	SOC_SINGLE_EXT("HPHR Impedance", 0, 1, UINT_MAX, 0,

		       tasha_hph_impedance_get, NULL),

};



static int tasha_get_hph_type(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);

	struct tasha_priv *priv = snd_soc_codec_get_drvdata(codec);

	struct wcd_mbhc *mbhc;



	if (!priv) {

		dev_dbg(codec->dev, "%s: wcd9335 private data is NULL\n",

				__func__);

		return 0;

	}



	mbhc = &priv->mbhc;

	if (!mbhc) {

		dev_dbg(codec->dev, "%s: mbhc not initialized\n", __func__);

		return 0;

	}



	ucontrol->value.integer.value[0] = (u32) mbhc->hph_type;

	dev_dbg(codec->dev, "%s: hph_type = %u\n", __func__, mbhc->hph_type);



	return 0;

}



static const struct snd_kcontrol_new hph_type_detect_controls[] = {

	SOC_SINGLE_EXT("HPH Type", 0, 0, UINT_MAX, 0,

		       tasha_get_hph_type, NULL),

};



static int tasha_vi_feed_mixer_get(struct snd_kcontrol *kcontrol,

				   struct snd_ctl_elem_value *ucontrol)

{
@@ -10791,6 +10846,11 @@ static int tasha_codec_probe(struct snd_soc_codec *codec) 
		tasha_init_slim_slave_cfg(codec);

	}



	snd_soc_add_codec_controls(codec, impedance_detect_controls,

				   ARRAY_SIZE(impedance_detect_controls));

	snd_soc_add_codec_controls(codec, hph_type_detect_controls,

				   ARRAY_SIZE(hph_type_detect_controls));



	snd_soc_add_codec_controls(codec,

			tasha_analog_gain_controls,

			ARRAY_SIZE(tasha_analog_gain_controls));