| /* 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; |
| unsigned int keep_power_at_enable:1; /* set by driver */ |
| 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 |
