diff options
| author | David Henningsson | 2012-10-09 15:04:21 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2012-10-15 09:58:28 +0200 |
| commit | 26a6cb6cca225f652acf4bfac3028019be73dadd (patch) | |
| tree | 883cf924a81b442d5dd9b9a375d6aa12968c1fa6 /sound/pci/hda/hda_jack.c | |
| parent | 239fb862e8e26287212bdefabb021ef8c5ef1b53 (diff) | |
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>
Diffstat (limited to 'sound/pci/hda/hda_jack.c')
| -rw-r--r-- | sound/pci/hda/hda_jack.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c index 5c690cb873d4..07d5288ce8cf 100644 --- a/sound/pci/hda/hda_jack.c +++ b/sound/pci/hda/hda_jack.c @@ -439,3 +439,25 @@ void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res) } 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); + |