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 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 static inline bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid) 66 { 67 if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT)) 68 return false; 69 if (!codec->ignore_misc_bit && 70 (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) & 71 AC_DEFCFG_MISC_NO_PRESENCE)) 72 return false; 73 if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP)) 74 return false; 75 return true; 76 } 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 86 #endif /* __SOUND_HDA_JACK_H */ 87