| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 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 */ |