1 /*
2 * Digital Beep Input Interface for HD-audio codec
3 *
4 * Author: Matthew Ranostay <mranostay@embeddedalley.com>
5 * Copyright (c) 2008 Embedded Alley Solutions Inc
6 *
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This driver is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #ifndef __SOUND_HDA_BEEP_H
23 #define __SOUND_HDA_BEEP_H
24
25 #include "hda_codec.h"
26
27 /* beep information */
28 struct hda_beep {
29 struct input_dev *dev;
30 struct hda_codec *codec;
31 char phys[32];
32 int tone;
33 hda_nid_t nid;
34 unsigned int enabled:1;
35 unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
36 struct work_struct beep_work; /* scheduled task for beep event */
37 };
38
39 #ifdef CONFIG_SND_HDA_INPUT_BEEP
40 int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
41 void snd_hda_detach_beep_device(struct hda_codec *codec);
42 #else
43 #define snd_hda_attach_beep_device(...) 0
44 #define snd_hda_detach_beep_device(...)
45 #endif
46 #endif
47
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