/**
* snd_hda_jack_report_sync - sync the states of all jacks and report if changed
*/
void snd_hda_jack_report_sync(struct hda_codec *codec)
{
struct hda_jack_tbl *jack;
int i, state;
/* update all jacks at first */
jack = codec->jacktbl.list;
for (i = 0; i < codec->jacktbl.used; i++, jack++)
if (jack->nid)
jack_detect_update(codec, jack);
/* report the updated jacks; it's done after updating all jacks
* to make sure that all gating jacks properly have been set
*/
jack = codec->jacktbl.list;
for (i = 0; i < codec->jacktbl.used; i++, jack++)
if (jack->nid) {
if (!jack->kctl || jack->block_report)
continue;
state = get_jack_plug_state(jack->pin_sense);
snd_kctl_jack_report(codec->bus->card, jack->kctl, state);
#ifdef CONFIG_SND_HDA_INPUT_JACK
if (jack->jack)
snd_jack_report(jack->jack,
state ? jack->type : 0);
#endif
}
}
/* update the cached value and notification flag if needed */
static void jack_detect_update(struct hda_codec *codec,
struct hda_jack_tbl *jack)
{
if (!jack->jack_dirty)
return;
if (jack->phantom_jack)
jack->pin_sense = AC_PINSENSE_PRESENCE;
else
jack->pin_sense = read_pin_sense(codec, jack->nid);
/* A gating jack indicates the jack is invalid if gating is unplugged */
if (jack->gating_jack && !snd_hda_jack_detect(codec, jack->gating_jack))
jack->pin_sense &= ~AC_PINSENSE_PRESENCE;
jack->jack_dirty = 0;
/* If a jack is gated by this one update it. */
if (jack->gated_jack) {
struct hda_jack_tbl *gated =
snd_hda_jack_tbl_get(codec, jack->gated_jack);
if (gated) {
gated->jack_dirty = 1;
jack_detect_update(codec, gated);
}
}
}
/**
* snd_hda_jack_report_sync - sync the states of all jacks and report if changed
* @codec: the HDA codec
*/
void snd_hda_jack_report_sync(struct hda_codec *codec)
{
struct hda_jack_tbl *jack;
int i, state;
/* update all jacks at first */
jack = codec->jacktbl.list;
for (i = 0; i < codec->jacktbl.used; i++, jack++)
if (jack->nid)
jack_detect_update(codec, jack);
/* report the updated jacks; it's done after updating all jacks
* to make sure that all gating jacks properly have been set
*/
jack = codec->jacktbl.list;
for (i = 0; i < codec->jacktbl.used; i++, jack++)
if (jack->nid) {
if (!jack->jack || jack->block_report)
continue;
state = jack->button_state;
if (get_jack_plug_state(jack->pin_sense))
state |= jack->type;
snd_jack_report(jack->jack, state);
if (jack->button_state) {
snd_jack_report(jack->jack,
state & ~jack->button_state);
jack->button_state = 0; /* button released */
}
}
}
/**
* snd_hda_pin_sense - execute pin sense measurement
* @codec: the CODEC to sense
* @nid: the pin NID to sense
*
* Execute necessary pin sense measurement and return its Presence Detect,
* Impedance, ELD Valid etc. status bits.
*/
u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
{
struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
if (jack) {
jack_detect_update(codec, jack);
return jack->pin_sense;
}
return read_pin_sense(codec, nid);
}
void snd_hda_jack_poll_all(struct hda_codec *codec)
{
struct hda_jack_tbl *jack = codec->jacktbl.list;
int i, changes = 0;
for (i = 0; i < codec->jacktbl.used; i++, jack++) {
unsigned int old_sense;
if (!jack->nid || !jack->jack_dirty || jack->phantom_jack)
continue;
old_sense = get_jack_plug_state(jack->pin_sense);
jack_detect_update(codec, jack);
if (old_sense == get_jack_plug_state(jack->pin_sense))
continue;
changes = 1;
call_jack_callback(codec, jack);
}
if (changes)
snd_hda_jack_report_sync(codec);
}
/**
* snd_hda_jack_report_sync - sync the states of all jacks and report if changed
*/
void snd_hda_jack_report_sync(struct hda_codec *codec)
{
struct hda_jack_tbl *jack = codec->jacktbl.list;
int i, state;
for (i = 0; i < codec->jacktbl.used; i++, jack++)
if (jack->nid) {
jack_detect_update(codec, jack);
if (!jack->kctl)
continue;
state = get_jack_plug_state(jack->pin_sense);
snd_kctl_jack_report(codec->bus->card, jack->kctl, state);
#ifdef CONFIG_SND_HDA_INPUT_JACK
if (jack->jack)
snd_jack_report(jack->jack,
state ? jack->type : 0);
#endif
}
}
