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 auto_pin_cfg; 16 struct hda_jack_tbl; 17 18 typedef void (*hda_jack_callback) (struct hda_codec *, struct hda_jack_tbl *); 19 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 struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */ 32 #ifdef CONFIG_SND_HDA_INPUT_JACK 33 int type; 34 struct snd_jack *jack; 35 #endif 36 }; 37 38 struct hda_jack_tbl * 39 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid); 40 struct hda_jack_tbl * 41 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag); 42 43 struct hda_jack_tbl * 44 snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid); 45 void snd_hda_jack_tbl_clear(struct hda_codec *codec); 46 47 /** 48 * snd_hda_jack_get_action - get jack-tbl entry for the tag 49 * 50 * Call this from the unsol event handler to get the assigned action for the 51 * event. This will mark the dirty flag for the later reporting, too. 52 */ 53 static inline unsigned char 54 snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag) 55 { 56 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag); 57 if (jack) { 58 jack->jack_dirty = 1; 59 return jack->action; 60 } 61 return 0; 62 } 63 64 void snd_hda_jack_set_dirty_all(struct hda_codec *codec); 65 66 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid, 67 unsigned char action); 68 int snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid, 69 unsigned char action, 70 hda_jack_callback cb); 71 72 73 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid); 74 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid); 75 76 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid); 77 78 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, 79 const char *name, int idx); 80 int snd_hda_jack_add_kctls(struct hda_codec *codec, 81 const struct auto_pin_cfg *cfg); 82 83 void snd_hda_jack_report_sync(struct hda_codec *codec); 84 85 void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res); 86 87 #endif /* __SOUND_HDA_JACK_H */ 88