196 lines
5.8 KiB
C
196 lines
5.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Jack-detection handling for HD-audio
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*
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* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
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*/
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#ifndef __SOUND_HDA_JACK_H
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#define __SOUND_HDA_JACK_H
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#include <linux/err.h>
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#include <sound/jack.h>
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struct auto_pin_cfg;
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struct hda_jack_tbl;
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struct hda_jack_callback;
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typedef void (*hda_jack_callback_fn) (struct hda_codec *, struct hda_jack_callback *);
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struct hda_jack_callback {
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hda_nid_t nid;
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int dev_id;
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hda_jack_callback_fn func;
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unsigned int private_data; /* arbitrary data */
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unsigned int unsol_res; /* unsolicited event bits */
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struct hda_jack_tbl *jack; /* associated jack entry */
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struct hda_jack_callback *next;
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};
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struct hda_jack_tbl {
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hda_nid_t nid;
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int dev_id;
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unsigned char tag; /* unsol event tag */
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struct hda_jack_callback *callback;
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/* jack-detection stuff */
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unsigned int pin_sense; /* cached pin-sense value */
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unsigned int jack_detect:1; /* capable of jack-detection? */
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unsigned int jack_dirty:1; /* needs to update? */
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unsigned int phantom_jack:1; /* a fixed, always present port? */
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unsigned int block_report:1; /* in a transitional state - do not report to userspace */
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hda_nid_t gating_jack; /* valid when gating jack plugged */
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hda_nid_t gated_jack; /* gated is dependent on this jack */
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hda_nid_t key_report_jack; /* key reports to this jack */
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int type;
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int button_state;
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struct snd_jack *jack;
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};
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struct hda_jack_keymap {
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enum snd_jack_types type;
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int key;
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};
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get_mst(struct hda_codec *codec, hda_nid_t nid, int dev_id);
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/**
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* snd_hda_jack_tbl_get - query the jack-table entry for the given NID
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* @codec: the HDA codec
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* @nid: pin NID to refer to
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*/
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static inline struct hda_jack_tbl *
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snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid)
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{
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return snd_hda_jack_tbl_get_mst(codec, nid, 0);
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}
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struct hda_jack_tbl *
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snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec,
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unsigned char tag, int dev_id);
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void snd_hda_jack_tbl_disconnect(struct hda_codec *codec);
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void snd_hda_jack_tbl_clear(struct hda_codec *codec);
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void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
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int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
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int dev_id);
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struct hda_jack_callback *
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snd_hda_jack_detect_enable_callback_mst(struct hda_codec *codec, hda_nid_t nid,
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int dev_id, hda_jack_callback_fn func);
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/**
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* snd_hda_jack_detect_enable - enable the jack-detection
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* @codec: the HDA codec
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* @nid: pin NID to enable
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* @func: callback function to register
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*
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* In the case of error, the return value will be a pointer embedded with
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* errno. Check and handle the return value appropriately with standard
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* macros such as @IS_ERR() and @PTR_ERR().
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*/
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static inline struct hda_jack_callback *
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snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
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hda_jack_callback_fn cb)
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{
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return snd_hda_jack_detect_enable_callback_mst(codec, nid, 0, cb);
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}
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int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
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hda_nid_t gating_nid);
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int snd_hda_jack_bind_keymap(struct hda_codec *codec, hda_nid_t key_nid,
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const struct hda_jack_keymap *keymap,
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hda_nid_t jack_nid);
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void snd_hda_jack_set_button_state(struct hda_codec *codec, hda_nid_t jack_nid,
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int button_state);
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u32 snd_hda_jack_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id);
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/* the jack state returned from snd_hda_jack_detect_state() */
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enum {
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HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT, HDA_JACK_PHANTOM,
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};
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int snd_hda_jack_detect_state_mst(struct hda_codec *codec, hda_nid_t nid,
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int dev_id);
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/**
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* snd_hda_jack_detect_state - query pin Presence Detect status
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* @codec: the CODEC to sense
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* @nid: the pin NID to sense
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*
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* Query and return the pin's Presence Detect status, as either
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* HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT or HDA_JACK_PHANTOM.
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*/
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static inline int
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snd_hda_jack_detect_state(struct hda_codec *codec, hda_nid_t nid)
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{
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return snd_hda_jack_detect_state_mst(codec, nid, 0);
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}
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/**
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* snd_hda_jack_detect_mst - Detect the jack
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* @codec: the HDA codec
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* @nid: pin NID to check jack detection
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* @dev_id: pin device entry id
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*/
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static inline bool
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snd_hda_jack_detect_mst(struct hda_codec *codec, hda_nid_t nid, int dev_id)
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{
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return snd_hda_jack_detect_state_mst(codec, nid, dev_id) !=
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HDA_JACK_NOT_PRESENT;
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}
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/**
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* snd_hda_jack_detect - Detect the jack
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* @codec: the HDA codec
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* @nid: pin NID to check jack detection
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*/
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static inline bool
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snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
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{
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return snd_hda_jack_detect_mst(codec, nid, 0);
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}
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bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
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int snd_hda_jack_add_kctl_mst(struct hda_codec *codec, hda_nid_t nid,
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int dev_id, const char *name, bool phantom_jack,
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int type, const struct hda_jack_keymap *keymap);
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/**
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* snd_hda_jack_add_kctl - Add a kctl for the given pin
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* @codec: the HDA codec
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* @nid: pin NID to assign
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* @name: string name for the jack
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* @phantom_jack: flag to deal as a phantom jack
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* @type: jack type bits to be reported, 0 for guessing from pincfg
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* @keymap: optional jack / key mapping
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*
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* This assigns a jack-detection kctl to the given pin. The kcontrol
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* will have the given name and index.
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*/
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static inline int
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snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
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const char *name, bool phantom_jack,
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int type, const struct hda_jack_keymap *keymap)
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{
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return snd_hda_jack_add_kctl_mst(codec, nid, 0,
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name, phantom_jack, type, keymap);
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}
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int snd_hda_jack_add_kctls(struct hda_codec *codec,
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const struct auto_pin_cfg *cfg);
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void snd_hda_jack_report_sync(struct hda_codec *codec);
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void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
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void snd_hda_jack_poll_all(struct hda_codec *codec);
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#endif /* __SOUND_HDA_JACK_H */
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