80c8bfbe76
PulseAudio sometimes have difficulties knowing that there is a "Speaker" or "Internal Mic", if they have no individual volume controls or selectors. As a result, only e g "Headphone" might be created for a laptop, but no "Speaker". To help out, create phantom jacks (that are always present, at least for now) for "Speaker", "Internal Mic" etc, in case we detect them. The naming convention is e g "Speaker Phantom Jack". In order not to pollute the /dev/input namespace with even more devices, these are added to the kcontrols only, not the input devices. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* Jack-detection handling for HD-audio
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*
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* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __SOUND_HDA_JACK_H
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#define __SOUND_HDA_JACK_H
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struct auto_pin_cfg;
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struct hda_jack_tbl {
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hda_nid_t nid;
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unsigned char action; /* event action (0 = none) */
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unsigned char tag; /* unsol event tag */
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unsigned int private_data; /* arbitrary data */
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/* jack-detection stuff */
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unsigned int pin_sense; /* cached pin-sense value */
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unsigned int jack_detect:1; /* capable of jack-detection? */
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unsigned int jack_dirty:1; /* needs to update? */
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unsigned int phantom_jack:1; /* a fixed, always present port? */
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struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */
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#ifdef CONFIG_SND_HDA_INPUT_JACK
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int type;
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struct snd_jack *jack;
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#endif
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};
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
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struct hda_jack_tbl *
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snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
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void snd_hda_jack_tbl_clear(struct hda_codec *codec);
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/**
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* snd_hda_jack_get_action - get jack-tbl entry for the tag
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*
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* Call this from the unsol event handler to get the assigned action for the
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* event. This will mark the dirty flag for the later reporting, too.
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*/
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static inline unsigned char
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snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
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{
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struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
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if (jack) {
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jack->jack_dirty = 1;
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return jack->action;
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}
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return 0;
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}
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void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
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int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
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unsigned char action);
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u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
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int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
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bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
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int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
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const char *name, int idx);
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int snd_hda_jack_add_kctls(struct hda_codec *codec,
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const struct auto_pin_cfg *cfg);
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void snd_hda_jack_report_sync(struct hda_codec *codec);
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#endif /* __SOUND_HDA_JACK_H */
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