Release 4.17 sound/pci/hda/hda_beep.h

/* 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 "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);
int snd_hda_register_beep_device(struct hda_codec *codec);
#else


static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
{
	return 0;
}
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static inline void snd_hda_detach_beep_device(struct hda_codec *codec)
{
}
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static inline int snd_hda_register_beep_device(struct hda_codec *codec)
{
	return 0;
}
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#endif
#endif
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Jaroslav Kysela
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Directory: sound/pci/hda

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