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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Digital Beep Input Interface for HD-audio codec
- *
- * Author: Matt Ranostay <[email protected]>
- * 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
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