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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * Digital Beep Input Interface for HD-audio codec4 *5 * Author: Matt Ranostay <matt.ranostay@konsulko.com>6 * Copyright (c) 2008 Embedded Alley Solutions Inc7 */8 9#ifndef __SOUND_HDA_BEEP_H10#define __SOUND_HDA_BEEP_H11 12#include <sound/hda_codec.h>13 14#define HDA_BEEP_MODE_OFF 015#define HDA_BEEP_MODE_ON 116 17/* beep information */18struct 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_BEEP34int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);35int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);36void snd_hda_detach_beep_device(struct hda_codec *codec);37#else38static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)39{40 return 0;41}42static inline void snd_hda_detach_beep_device(struct hda_codec *codec)43{44}45#endif46#endif47