diff options
Diffstat (limited to 'kernel/sound/pci/hda/hda_beep.h')
| -rw-r--r-- | kernel/sound/pci/hda/hda_beep.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/kernel/sound/pci/hda/hda_beep.h b/kernel/sound/pci/hda/hda_beep.h new file mode 100644 index 000000000..46524ff7e --- /dev/null +++ b/kernel/sound/pci/hda/hda_beep.h @@ -0,0 +1,64 @@ +/* + * Digital Beep Input Interface for HD-audio codec + * + * Author: Matthew Ranostay <mranostay@embeddedalley.com> + * Copyright (c) 2008 Embedded Alley Solutions Inc + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __SOUND_HDA_BEEP_H +#define __SOUND_HDA_BEEP_H + +#include "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; + 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); +int snd_hda_register_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) +{ +} +static inline int snd_hda_register_beep_device(struct hda_codec *codec) +{ + return 0; +} +#endif +#endif |