|  | /* | 
|  | * 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" | 
|  |  | 
|  | /* beep information */ | 
|  | struct hda_beep { | 
|  | struct input_dev *dev; | 
|  | struct hda_codec *codec; | 
|  | char phys[32]; | 
|  | int tone; | 
|  | int nid; | 
|  | struct work_struct beep_work; /* scheduled task for beep event */ | 
|  | }; | 
|  |  | 
|  | #ifdef CONFIG_SND_HDA_INPUT_BEEP | 
|  | int snd_hda_attach_beep_device(struct hda_codec *codec, int nid); | 
|  | void snd_hda_detach_beep_device(struct hda_codec *codec); | 
|  | #else | 
|  | #define snd_hda_attach_beep_device(...) | 
|  | #define snd_hda_detach_beep_device(...) | 
|  | #endif | 
|  | #endif |