diff options
Diffstat (limited to 'sound/pci/hda/hda_beep.h')
| -rw-r--r-- | sound/pci/hda/hda_beep.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h new file mode 100644 index 000000000..db76e3ddb --- /dev/null +++ b/sound/pci/hda/hda_beep.h @@ -0,0 +1,47 @@ +/* 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 |