tuntap: switch to use rtnl_dereference()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / hda / hda_jack.h
blobec12abd452631d12b9915e0c75a4c45fdbc07c95
1 /*
2 * Jack-detection handling for HD-audio
4 * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
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.
12 #ifndef __SOUND_HDA_JACK_H
13 #define __SOUND_HDA_JACK_H
15 struct auto_pin_cfg;
16 struct hda_jack_tbl;
18 typedef void (*hda_jack_callback) (struct hda_codec *, struct hda_jack_tbl *);
20 struct hda_jack_tbl {
21 hda_nid_t nid;
22 unsigned char action; /* event action (0 = none) */
23 unsigned char tag; /* unsol event tag */
24 unsigned int private_data; /* arbitrary data */
25 hda_jack_callback callback;
26 /* jack-detection stuff */
27 unsigned int pin_sense; /* cached pin-sense value */
28 unsigned int jack_detect:1; /* capable of jack-detection? */
29 unsigned int jack_dirty:1; /* needs to update? */
30 unsigned int phantom_jack:1; /* a fixed, always present port? */
31 hda_nid_t gating_jack; /* valid when gating jack plugged */
32 hda_nid_t gated_jack; /* gated is dependent on this jack */
33 struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */
34 #ifdef CONFIG_SND_HDA_INPUT_JACK
35 int type;
36 struct snd_jack *jack;
37 #endif
40 struct hda_jack_tbl *
41 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
42 struct hda_jack_tbl *
43 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
45 struct hda_jack_tbl *
46 snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
47 void snd_hda_jack_tbl_clear(struct hda_codec *codec);
49 /**
50 * snd_hda_jack_get_action - get jack-tbl entry for the tag
52 * Call this from the unsol event handler to get the assigned action for the
53 * event. This will mark the dirty flag for the later reporting, too.
55 static inline unsigned char
56 snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
58 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
59 if (jack) {
60 jack->jack_dirty = 1;
61 return jack->action;
63 return 0;
66 void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
68 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
69 unsigned char action);
70 int snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
71 unsigned char action,
72 hda_jack_callback cb);
74 int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
75 hda_nid_t gating_nid);
77 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
78 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
80 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
82 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
83 const char *name, int idx);
84 int snd_hda_jack_add_kctls(struct hda_codec *codec,
85 const struct auto_pin_cfg *cfg);
87 void snd_hda_jack_report_sync(struct hda_codec *codec);
89 void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
91 void snd_hda_jack_poll_all(struct hda_codec *codec);
93 #endif /* __SOUND_HDA_JACK_H */