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 #include <linux/err.h>
16
17 struct auto_pin_cfg;
18 struct hda_jack_tbl;
19 struct hda_jack_callback;
20
21 typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *);
22
23 struct hda_jack_callback {
24 hda_nid_t nid;
25 hda_jack_callback_fn func;
26 unsigned int private_data; /* arbitrary data */
27 struct hda_jack_callback *next;
28 };
29
30 struct hda_jack_tbl {
31 hda_nid_t nid;
32 unsigned char tag; /* unsol event tag */
33 struct hda_jack_callback *callback;
34 /* jack-detection stuff */
35 unsigned int pin_sense; /* cached pin-sense value */
36 unsigned int jack_detect:1; /* capable of jack-detection? */
37 unsigned int jack_dirty:1; /* needs to update? */
38 unsigned int phantom_jack:1; /* a fixed, always present port? */
39 unsigned int block_report:1; /* in a transitional state - do not report to userspace */
40 hda_nid_t gating_jack; /* valid when gating jack plugged */
41 hda_nid_t gated_jack; /* gated is dependent on this jack */
42 int type;
43 struct snd_jack *jack;
44 };
45
46 struct hda_jack_tbl *
47 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
48 struct hda_jack_tbl *
49 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
50
51 void snd_hda_jack_tbl_clear(struct hda_codec *codec);
52
53 void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
54
55 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid);
56 struct hda_jack_callback *
57 snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
58 hda_jack_callback_fn cb);
59
60 int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
61 hda_nid_t gating_nid);
62
63 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
64
65 /* the jack state returned from snd_hda_jack_detect_state() */
66 enum {
67 HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT, HDA_JACK_PHANTOM,
68 };
69
70 int snd_hda_jack_detect_state(struct hda_codec *codec, hda_nid_t nid);
71
72 /**
73 * snd_hda_jack_detect - Detect the jack
74 * @codec: the HDA codec
75 * @nid: pin NID to check jack detection
76 */
snd_hda_jack_detect(struct hda_codec * codec,hda_nid_t nid)77 static inline bool snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
78 {
79 return snd_hda_jack_detect_state(codec, nid) != HDA_JACK_NOT_PRESENT;
80 }
81
82 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
83
84 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
85 const char *name, bool phantom_jack);
86 int snd_hda_jack_add_kctls(struct hda_codec *codec,
87 const struct auto_pin_cfg *cfg);
88
89 void snd_hda_jack_report_sync(struct hda_codec *codec);
90
91 void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
92
93 void snd_hda_jack_poll_all(struct hda_codec *codec);
94
95 #endif /* __SOUND_HDA_JACK_H */
96