47 строки
1.2 KiB
C
47 строки
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Digital Beep Input Interface for HD-audio codec
|
|
*
|
|
* Author: Matt Ranostay <matt.ranostay@konsulko.com>
|
|
* Copyright (c) 2008 Embedded Alley Solutions Inc
|
|
*/
|
|
|
|
#ifndef __SOUND_HDA_BEEP_H
|
|
#define __SOUND_HDA_BEEP_H
|
|
|
|
#include <sound/hda_codec.h>
|
|
|
|
#define HDA_BEEP_MODE_OFF 0
|
|
#define HDA_BEEP_MODE_ON 1
|
|
|
|
/* beep information */
|
|
struct hda_beep {
|
|
struct input_dev *dev;
|
|
struct hda_codec *codec;
|
|
char phys[32];
|
|
int tone;
|
|
hda_nid_t nid;
|
|
unsigned int registered:1;
|
|
unsigned int enabled:1;
|
|
unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
|
|
unsigned int playing:1;
|
|
struct work_struct beep_work; /* scheduled task for beep event */
|
|
struct mutex mutex;
|
|
void (*power_hook)(struct hda_beep *beep, bool on);
|
|
};
|
|
|
|
#ifdef CONFIG_SND_HDA_INPUT_BEEP
|
|
int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);
|
|
int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
|
|
void snd_hda_detach_beep_device(struct hda_codec *codec);
|
|
#else
|
|
static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void snd_hda_detach_beep_device(struct hda_codec *codec)
|
|
{
|
|
}
|
|
#endif
|
|
#endif
|