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4c8d695cb9
The recent fix for IDT codecs to keep the power up while the beep is
enabled can be better integrated into the beep helper code.
This patch cleans up the code with refactoring.
Fixes: 414d38ba87 ("ALSA: hda/sigmatel: Keep power up while beep is enabled")
Link: https://lore.kernel.org/r/20220906092306.26183-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Digital Beep Input Interface for HD-audio codec
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*
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* Author: Matt Ranostay <matt.ranostay@konsulko.com>
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* Copyright (c) 2008 Embedded Alley Solutions Inc
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*/
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#ifndef __SOUND_HDA_BEEP_H
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#define __SOUND_HDA_BEEP_H
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#include <sound/hda_codec.h>
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#define HDA_BEEP_MODE_OFF 0
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#define HDA_BEEP_MODE_ON 1
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/* beep information */
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struct hda_beep {
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struct input_dev *dev;
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struct hda_codec *codec;
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char phys[32];
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int tone;
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hda_nid_t nid;
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unsigned int registered:1;
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unsigned int enabled:1;
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unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
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unsigned int playing:1;
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unsigned int keep_power_at_enable:1; /* set by driver */
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struct work_struct beep_work; /* scheduled task for beep event */
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struct mutex mutex;
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void (*power_hook)(struct hda_beep *beep, bool on);
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};
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#ifdef CONFIG_SND_HDA_INPUT_BEEP
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int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);
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int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
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void snd_hda_detach_beep_device(struct hda_codec *codec);
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#else
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static inline int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
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{
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return 0;
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}
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static inline void snd_hda_detach_beep_device(struct hda_codec *codec)
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{
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}
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#endif
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#endif
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