linux/sound/pci/hda/hda_beep.h
Matt Ranostay 248a380a3c ALSA: hda-beep: add SPDX identifiers
Add SPDX GPLv2.0+ identifiers and update authors email

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-20 16:49:59 +01:00

52 lines
1.3 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 "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;
}
static inline void snd_hda_detach_beep_device(struct hda_codec *codec)
{
}
static inline int snd_hda_register_beep_device(struct hda_codec *codec)
{
return 0;
}
#endif
#endif