[alsa-devel] [PATCH] ALSA: hda - Headphone mic support for an Asus/Conexant device

[Takashi Iwai]

At Tue, 16 Jul 2013 11:48:10 +0200,
David Henningsson wrote:
> 
> This Conexant codec has a single jack that can be used as either
> headphone or mic (but not headset). The existing hp_mic functionality
> does not apply here, because the mic and the HP are on separate pins.
> 
> Hence make a lighter version of what has been earlier done for Realtek
> codecs.
> 
> BugLink: https://bugs.launchpad.net/bugs/1198030
> Tested-by: Franz Hsieh <franz.hsieh at canonical.com>
> Signed-off-by: David Henningsson <david.henningsson at canonical.com>

Thanks, applied.


Takashi

> ---
>  sound/pci/hda/patch_conexant.c |   79 +++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 78 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index de00ce1..4edd2d0 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -66,6 +66,8 @@ struct conexant_spec {
>  	hda_nid_t eapds[4];
>  	bool dynamic_eapd;
>  
> +	unsigned int parse_flags; /* flag for snd_hda_parse_pin_defcfg() */
> +
>  #ifdef ENABLE_CXT_STATIC_QUIRKS
>  	const struct snd_kcontrol_new *mixers[5];
>  	int num_mixers;
> @@ -3200,6 +3202,9 @@ static int cx_auto_init(struct hda_codec *codec)
>  	snd_hda_gen_init(codec);
>  	if (!spec->dynamic_eapd)
>  		cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true);
> +
> +	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT);
> +
>  	return 0;
>  }
>  
> @@ -3224,6 +3229,8 @@ enum {
>  	CXT_PINCFG_LEMOTE_A1205,
>  	CXT_FIXUP_STEREO_DMIC,
>  	CXT_FIXUP_INC_MIC_BOOST,
> +	CXT_FIXUP_HEADPHONE_MIC_PIN,
> +	CXT_FIXUP_HEADPHONE_MIC,
>  };
>  
>  static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
> @@ -3246,6 +3253,59 @@ static void cxt5066_increase_mic_boost(struct hda_codec *codec,
>  				  (0 << AC_AMPCAP_MUTE_SHIFT));
>  }
>  
> +static void cxt_update_headset_mode(struct hda_codec *codec)
> +{
> +	/* The verbs used in this function were tested on a Conexant CX20751/2 codec. */
> +	int i;
> +	bool mic_mode = false;
> +	struct conexant_spec *spec = codec->spec;
> +	struct auto_pin_cfg *cfg = &spec->gen.autocfg;
> +
> +	hda_nid_t mux_pin = spec->gen.imux_pins[spec->gen.cur_mux[0]];
> +
> +	for (i = 0; i < cfg->num_inputs; i++)
> +		if (cfg->inputs[i].pin == mux_pin) {
> +			mic_mode = !!cfg->inputs[i].is_headphone_mic;
> +			break;
> +		}
> +
> +	if (mic_mode) {
> +		snd_hda_codec_write_cache(codec, 0x1c, 0, 0x410, 0x7c); /* enable merged mode for analog int-mic */
> +		spec->gen.hp_jack_present = false;
> +	} else {
> +		snd_hda_codec_write_cache(codec, 0x1c, 0, 0x410, 0x54); /* disable merged mode for analog int-mic */
> +		spec->gen.hp_jack_present = snd_hda_jack_detect(codec, spec->gen.autocfg.hp_pins[0]);
> +	}
> +
> +	snd_hda_gen_update_outputs(codec);
> +}
> +
> +static void cxt_update_headset_mode_hook(struct hda_codec *codec,
> +			     struct snd_ctl_elem_value *ucontrol)
> +{
> +	cxt_update_headset_mode(codec);
> +}
> +
> +static void cxt_fixup_headphone_mic(struct hda_codec *codec,
> +				    const struct hda_fixup *fix, int action)
> +{
> +	struct conexant_spec *spec = codec->spec;
> +
> +	switch (action) {
> +	case HDA_FIXUP_ACT_PRE_PROBE:
> +		spec->parse_flags |= HDA_PINCFG_HEADPHONE_MIC;
> +		break;
> +	case HDA_FIXUP_ACT_PROBE:
> +		spec->gen.cap_sync_hook = cxt_update_headset_mode_hook;
> +		spec->gen.automute_hook = cxt_update_headset_mode;
> +		break;
> +	case HDA_FIXUP_ACT_INIT:
> +		cxt_update_headset_mode(codec);
> +		break;
> +	}
> +}
> +
> +
>  /* ThinkPad X200 & co with cxt5051 */
>  static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
>  	{ 0x16, 0x042140ff }, /* HP (seq# overridden) */
> @@ -3302,6 +3362,19 @@ static const struct hda_fixup cxt_fixups[] = {
>  		.type = HDA_FIXUP_FUNC,
>  		.v.func = cxt5066_increase_mic_boost,
>  	},
> +	[CXT_FIXUP_HEADPHONE_MIC_PIN] = {
> +		.type = HDA_FIXUP_PINS,
> +		.chained = true,
> +		.chain_id = CXT_FIXUP_HEADPHONE_MIC,
> +		.v.pins = (const struct hda_pintbl[]) {
> +			{ 0x18, 0x03a1913d }, /* use as headphone mic, without its own jack detect */
> +			{ }
> +		}
> +	},
> +	[CXT_FIXUP_HEADPHONE_MIC] = {
> +		.type = HDA_FIXUP_FUNC,
> +		.v.func = cxt_fixup_headphone_mic,
> +	},
>  };
>  
>  static const struct snd_pci_quirk cxt5051_fixups[] = {
> @@ -3311,6 +3384,7 @@ static const struct snd_pci_quirk cxt5051_fixups[] = {
>  
>  static const struct snd_pci_quirk cxt5066_fixups[] = {
>  	SND_PCI_QUIRK(0x1025, 0x0543, "Acer Aspire One 522", CXT_FIXUP_STEREO_DMIC),
> +	SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
>  	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
>  	SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410),
>  	SND_PCI_QUIRK(0x17aa, 0x215f, "Lenovo T510", CXT_PINCFG_LENOVO_TP410),
> @@ -3395,7 +3469,8 @@ static int patch_conexant_auto(struct hda_codec *codec)
>  
>  	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
>  
> -	err = snd_hda_parse_pin_defcfg(codec, &spec->gen.autocfg, NULL, 0);
> +	err = snd_hda_parse_pin_defcfg(codec, &spec->gen.autocfg, NULL,
> +				       spec->parse_flags);
>  	if (err < 0)
>  		goto error;
>  
> @@ -3416,6 +3491,8 @@ static int patch_conexant_auto(struct hda_codec *codec)
>  		codec->bus->allow_bus_reset = 1;
>  	}
>  
> +	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);
> +
>  	return 0;
>  
>   error:
> -- 
> 1.7.9.5
>