root/sound/pci/hda/hda_jack.h

INCLUDED FROM

DEFINITIONS

1. snd_hda_jack_detect

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Jack-detection handling for HD-audio
   4  *
   5  * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
   6  */
   7 
   8 #ifndef __SOUND_HDA_JACK_H
   9 #define __SOUND_HDA_JACK_H
  10 
  11 #include <linux/err.h>
  12 #include <sound/jack.h>
  13 
  14 struct auto_pin_cfg;
  15 struct hda_jack_tbl;
  16 struct hda_jack_callback;
  17 
  18 typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *);
  19 
  20 struct hda_jack_callback {
  21         hda_nid_t nid;
  22         hda_jack_callback_fn func;
  23         unsigned int private_data;      /* arbitrary data */
  24         unsigned int unsol_res;         /* unsolicited event bits */
  25         struct hda_jack_tbl *jack;      /* associated jack entry */
  26         struct hda_jack_callback *next;
  27 };
  28 
  29 struct hda_jack_tbl {
  30         hda_nid_t nid;
  31         unsigned char tag;              /* unsol event tag */
  32         struct hda_jack_callback *callback;
  33         /* jack-detection stuff */
  34         unsigned int pin_sense;         /* cached pin-sense value */
  35         unsigned int jack_detect:1;     /* capable of jack-detection? */
  36         unsigned int jack_dirty:1;      /* needs to update? */
  37         unsigned int phantom_jack:1;    /* a fixed, always present port? */
  38         unsigned int block_report:1;    /* in a transitional state - do not report to userspace */
  39         hda_nid_t gating_jack;          /* valid when gating jack plugged */
  40         hda_nid_t gated_jack;           /* gated is dependent on this jack */
  41         int type;
  42         int button_state;
  43         struct snd_jack *jack;
  44 };
  45 
  46 struct hda_jack_keymap {
  47         enum snd_jack_types type;
  48         int key;
  49 };
  50 
  51 struct hda_jack_tbl *
  52 snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
  53 struct hda_jack_tbl *
  54 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
  55 
  56 void snd_hda_jack_tbl_clear(struct hda_codec *codec);
  57 
  58 void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
  59 
  60 int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid);
  61 struct hda_jack_callback *
  62 snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
  63                                     hda_jack_callback_fn cb);
  64 
  65 int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
  66                                  hda_nid_t gating_nid);
  67 
  68 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
  69 
  70 /* the jack state returned from snd_hda_jack_detect_state() */
  71 enum {
  72         HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT, HDA_JACK_PHANTOM,
  73 };
  74 
  75 int snd_hda_jack_detect_state(struct hda_codec *codec, hda_nid_t nid);
  76 
  77 /**
  78  * snd_hda_jack_detect - Detect the jack
  79  * @codec: the HDA codec
  80  * @nid: pin NID to check jack detection
  81  */
  82 static inline bool snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
  83 {
  84         return snd_hda_jack_detect_state(codec, nid) != HDA_JACK_NOT_PRESENT;
  85 }
  86 
  87 bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
  88 
  89 int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
  90                           const char *name, bool phantom_jack,
  91                           int type, const struct hda_jack_keymap *keymap);
  92 int snd_hda_jack_add_kctls(struct hda_codec *codec,
  93                            const struct auto_pin_cfg *cfg);
  94 
  95 void snd_hda_jack_report_sync(struct hda_codec *codec);
  96 
  97 void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
  98 
  99 void snd_hda_jack_poll_all(struct hda_codec *codec);
 100 
 101 #endif /* __SOUND_HDA_JACK_H */