ALSA: hda - Implement a poll loop for jacks as a module parameter
Now that we have a generic unsol mechanism, we can implement a generic
poll loop, which can be used for debugging, or if a codec's unsol
mechanism is broken.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index 5c690cb..07d5288 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -439,3 +439,25 @@
}
EXPORT_SYMBOL_HDA(snd_hda_jack_unsol_event);
+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;
+ if (jack->callback)
+ jack->callback(codec, jack);
+ }
+ if (changes)
+ snd_hda_jack_report_sync(codec);
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_poll_all);
+