1 /*
2 * Jack-detection handling for HD-audio
3 *
4 * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
5 *
6 * This driver is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12 #ifndef __SOUND_HDA_JACK_H
13 #define __SOUND_HDA_JACK_H
14
15 struct hda_jack_tbl {
16 hda_nid_t nid;
17 unsigned char action; /* event action (0 = none) */
18 unsigned char tag; /* unsol event tag */
19 unsigned int private_data; /* arbitrary data */
20 /* jack-detection stuff */
21 unsigned int pin_sense; /* cached pin-sense value */
22 unsigned int jack_detect:1; /* capable of jack-detection? */
23 unsigned int jack_dirty:1; /* needs to update? */
24 struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */
25 #ifdef CONFIG_SND_HDA_INPUT_JACK
26 int type;
27 struct snd_jack *jack;
28 #endif
29 };
30
31 struct hda_jack_tbl *
32 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
33 struct hda_jack_tbl *
34 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
35
36 struct hda_jack_tbl *
37 snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
38 void snd_hda_jack_tbl_clear(struct hda_codec *codec);
39
40 /**
41 * snd_hda_jack_get_action - get jack-tbl entry for the tag
42 *
43 * Call this from the unsol event handler to get the assigned action for the
44 * event. This will mark the dirty flag for the later reporting, too.
45 */
46 static inline unsigned char
snd_hda_jack_get_action(struct hda_codec * codec,unsigned int tag)47 snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
48 {
49 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
50 if (jack) {
51 jack->jack_dirty = 1;
52 return jack->action;
53 }
54 return 0;
55 }
56
57 void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
58
59 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
60 unsigned char action);
61
62 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
63 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
64
65 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
66
67 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
68 const char *name, int idx);
69 int snd_hda_jack_add_kctls(struct hda_codec *codec,
70 const struct auto_pin_cfg *cfg);
71
72 void snd_hda_jack_report_sync(struct hda_codec *codec);
73
74
75 #endif /* __SOUND_HDA_JACK_H */
76