/**
* snd_hda_jack_detect_state - query pin Presence Detect status
* @codec: the CODEC to sense
* @nid: the pin NID to sense
*
* Query and return the pin's Presence Detect status, as either
* HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT or HDA_JACK_PHANTOM.
*/
int snd_hda_jack_detect_state(struct hda_codec *codec, hda_nid_t nid)
{
struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
if (jack && jack->phantom_jack)
return HDA_JACK_PHANTOM;
else if (snd_hda_pin_sense(codec, nid) & AC_PINSENSE_PRESENCE)
return HDA_JACK_PRESENT;
else
return HDA_JACK_NOT_PRESENT;
}
static int hdmi_eld_valid(struct hda_codec *codec, hda_nid_t nid)
{
int eldv;
int present;
present = snd_hda_pin_sense(codec, nid);
eldv = (present & AC_PINSENSE_ELDV);
present = (present & AC_PINSENSE_PRESENCE);
#ifdef CONFIG_SND_DEBUG_VERBOSE
printk(KERN_INFO "HDMI: sink_present = %d, eld_valid = %d\n",
!!present, !!eldv);
#endif
return eldv && present;
}
/**
* snd_hda_jack_detect - query pin Presence Detect status
* @codec: the CODEC to sense
* @nid: the pin NID to sense
*
* Query and return the pin's Presence Detect status.
*/
int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
{
u32 sense = snd_hda_pin_sense(codec, nid);
return get_jack_plug_state(sense);
}