Comment 21 for bug 1509921

do the combo headset support CITA or OMPT headset since alc_determine_headset_type() does not return value for alc662

the role of the combo jack is determined by first mux_pin , this mean that the "Headset Mic and "Headphone Mic" in second input source control have no effect

static void alc_update_headset_mode(struct hda_codec *codec)
{
 struct alc_spec *spec = codec->spec;

 hda_nid_t mux_pin = spec->gen.imux_pins[spec->gen.cur_mux[0]];
 hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];

 int new_headset_mode;

 if (!snd_hda_jack_detect(codec, hp_pin))
  new_headset_mode = ALC_HEADSET_MODE_UNPLUGGED;
 else if (mux_pin == spec->headset_mic_pin)
  new_headset_mode = ALC_HEADSET_MODE_HEADSET;
 else if (mux_pin == spec->headphone_mic_pin)
  new_headset_mode = ALC_HEADSET_MODE_MIC;
 else
  new_headset_mode = ALC_HEADSET_MODE_HEADPHONE;