| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */
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| 2 | #ifndef __SOUND_JACK_H
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| 3 | #define __SOUND_JACK_H
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| 4 |
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| 5 | /*
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| 6 | * Jack abstraction layer
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| 7 | *
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| 8 | * Copyright 2008 Wolfson Microelectronics plc
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| 9 | */
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| 10 |
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| 11 | #include <sound/core.h>
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| 12 |
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| 13 | struct input_dev;
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| 14 |
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| 15 | /**
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| 16 | * enum snd_jack_types - Jack types which can be reported
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| 17 | * @SND_JACK_HEADPHONE: Headphone
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| 18 | * @SND_JACK_MICROPHONE: Microphone
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| 19 | * @SND_JACK_HEADSET: Headset
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| 20 | * @SND_JACK_LINEOUT: Line out
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| 21 | * @SND_JACK_MECHANICAL: Mechanical switch
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| 22 | * @SND_JACK_VIDEOOUT: Video out
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| 23 | * @SND_JACK_AVOUT: AV (Audio Video) out
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| 24 | * @SND_JACK_LINEIN: Line in
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| 25 | * @SND_JACK_BTN_0: Button 0
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| 26 | * @SND_JACK_BTN_1: Button 1
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| 27 | * @SND_JACK_BTN_2: Button 2
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| 28 | * @SND_JACK_BTN_3: Button 3
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| 29 | * @SND_JACK_BTN_4: Button 4
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| 30 | * @SND_JACK_BTN_5: Button 5
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| 31 | *
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| 32 | * These values are used as a bitmask.
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| 33 | *
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| 34 | * Note that this must be kept in sync with the lookup table in
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| 35 | * sound/core/jack.c.
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| 36 | */
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| 37 | enum snd_jack_types {
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| 38 | SND_JACK_HEADPHONE = 0x0001,
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| 39 | SND_JACK_MICROPHONE = 0x0002,
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| 40 | SND_JACK_HEADSET = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
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| 41 | SND_JACK_LINEOUT = 0x0004,
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| 42 | SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
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| 43 | SND_JACK_VIDEOOUT = 0x0010,
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| 44 | SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
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| 45 | SND_JACK_LINEIN = 0x0020,
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| 46 |
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| 47 | /* Kept separate from switches to facilitate implementation */
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| 48 | SND_JACK_BTN_0 = 0x4000,
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| 49 | SND_JACK_BTN_1 = 0x2000,
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| 50 | SND_JACK_BTN_2 = 0x1000,
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| 51 | SND_JACK_BTN_3 = 0x0800,
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| 52 | SND_JACK_BTN_4 = 0x0400,
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| 53 | SND_JACK_BTN_5 = 0x0200,
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| 54 | };
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| 55 |
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| 56 | /* Keep in sync with definitions above */
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| 57 | #define SND_JACK_SWITCH_TYPES 6
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| 58 |
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| 59 | struct snd_jack {
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| 60 | struct list_head kctl_list;
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| 61 | struct snd_card *card;
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| 62 | const char *id;
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| 63 | #ifdef CONFIG_SND_JACK_INPUT_DEV
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| 64 | struct input_dev *input_dev;
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| 65 | struct mutex input_dev_lock;
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| 66 | int registered;
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| 67 | int type;
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| 68 | char name[100];
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| 69 | unsigned int key[6]; /* Keep in sync with definitions above */
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| 70 | #endif /* CONFIG_SND_JACK_INPUT_DEV */
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| 71 | int hw_status_cache;
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| 72 | void *private_data;
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| 73 | void (*private_free)(struct snd_jack *);
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| 74 | };
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| 75 |
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| 76 | #ifdef CONFIG_SND_JACK
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| 77 |
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| 78 | int snd_jack_new(struct snd_card *card, const char *id, int type,
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| 79 | struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
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| 80 | int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
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| 81 | #ifdef CONFIG_SND_JACK_INPUT_DEV
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| 82 | void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
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| 83 | int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
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| 84 | int keytype);
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| 85 | #endif
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| 86 | void snd_jack_report(struct snd_jack *jack, int status);
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| 87 |
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| 88 | #else
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| 89 | static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
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| 90 | struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
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| 91 | {
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| 92 | return 0;
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| 93 | }
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| 94 |
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| 95 | static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
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| 96 | {
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| 97 | return 0;
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| 98 | }
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| 99 |
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| 100 | static inline void snd_jack_report(struct snd_jack *jack, int status)
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| 101 | {
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| 102 | }
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| 103 |
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| 104 | #endif
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| 105 |
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| 106 | #if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
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| 107 | static inline void snd_jack_set_parent(struct snd_jack *jack,
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| 108 | struct device *parent)
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| 109 | {
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| 110 | }
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| 111 |
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| 112 | static inline int snd_jack_set_key(struct snd_jack *jack,
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| 113 | enum snd_jack_types type,
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| 114 | int keytype)
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| 115 | {
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| 116 | return 0;
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| 117 | }
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| 118 | #endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */
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| 119 |
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| 120 | #endif
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