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