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 */ 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