| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * Digital Beep Input Interface for HD-audio codec |
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| 4 | * |
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| 5 | * Author: Matt Ranostay <matt.ranostay@konsulko.com> |
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| 6 | * Copyright (c) 2008 Embedded Alley Solutions Inc |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef __SOUND_HDA_BEEP_H |
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| 10 | #define __SOUND_HDA_BEEP_H |
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| 11 | |
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| 12 | #include <sound/hda_codec.h> |
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| 13 | |
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| 14 | #define HDA_BEEP_MODE_OFF 0 |
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| 15 | #define HDA_BEEP_MODE_ON 1 |
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| 16 | |
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| 17 | /* beep information */ |
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| 18 | struct hda_beep { |
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| 19 | struct input_dev *dev; |
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| 20 | struct hda_codec *codec; |
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| 21 | char phys[32]; |
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| 22 | int tone; |
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| 23 | hda_nid_t nid; |
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| 24 | unsigned int registered:1; |
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| 25 | unsigned int enabled:1; |
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| 26 | unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */ |
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| 27 | unsigned int playing:1; |
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| 28 | unsigned int keep_power_at_enable:1; /* set by driver */ |
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| 29 | struct work_struct beep_work; /* scheduled task for beep event */ |
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| 30 | void (*power_hook)(struct hda_beep *beep, bool on); |
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| 31 | }; |
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| 32 | |
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| 33 | #ifdef CONFIG_SND_HDA_INPUT_BEEP |
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| 34 | int snd_hda_enable_beep_device(struct hda_codec *codec, int enable); |
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| 35 | int snd_hda_attach_beep_device(struct hda_codec *codec, int nid); |
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| 36 | void snd_hda_detach_beep_device(struct hda_codec *codec); |
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| 37 | #else |
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| 38 | static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid) |
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| 39 | { |
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| 40 | return 0; |
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| 41 | } |
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| 42 | static inline void snd_hda_detach_beep_device(struct hda_codec *codec) |
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| 43 | { |
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| 44 | } |
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| 45 | #endif |
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| 46 | #endif |
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| 47 | |
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