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 17 struct hda_jack_tbl { 18 hda_nid_t nid; 19 unsigned char action; /* event action (0 = none) */ 20 unsigned char tag; /* unsol event tag */ 21 unsigned int private_data; /* arbitrary data */ 22 /* jack-detection stuff */ 23 unsigned int pin_sense; /* cached pin-sense value */ 24 unsigned int jack_detect:1; /* capable of jack-detection? */ 25 unsigned int jack_dirty:1; /* needs to update? */ 26 unsigned int phantom_jack:1; /* a fixed, always present port? */ 27 struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */ 28 #ifdef CONFIG_SND_HDA_INPUT_JACK 29 int type; 30 struct snd_jack *jack; 31 #endif 32 }; 33 34 struct hda_jack_tbl * 35 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid); 36 struct hda_jack_tbl * 37 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag); 38 39 struct hda_jack_tbl * 40 snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid); 41 void snd_hda_jack_tbl_clear(struct hda_codec *codec); 42 43 /** 44 * snd_hda_jack_get_action - get jack-tbl entry for the tag 45 * 46 * Call this from the unsol event handler to get the assigned action for the 47 * event. This will mark the dirty flag for the later reporting, too. 48 */ 49 static inline unsigned char 50 snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag) 51 { 52 struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag); 53 if (jack) { 54 jack->jack_dirty = 1; 55 return jack->action; 56 } 57 return 0; 58 } 59 60 void snd_hda_jack_set_dirty_all(struct hda_codec *codec); 61 62 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid, 63 unsigned char action); 64 65 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid); 66 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid); 67 68 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid); 69 70 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, 71 const char *name, int idx); 72 int snd_hda_jack_add_kctls(struct hda_codec *codec, 73 const struct auto_pin_cfg *cfg); 74 75 void snd_hda_jack_report_sync(struct hda_codec *codec); 76 77 78 #endif /* __SOUND_HDA_JACK_H */ 79