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/*
* 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
#define HDA_BEEP_MODE_SWREG 2
/* beep information */
struct hda_beep {
struct input_dev *dev;
struct hda_codec *codec;
unsigned int mode;
char phys[32];
int tone;
hda_nid_t nid;
unsigned int enabled:1;
unsigned int request_enable:1;
unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
struct work_struct register_work; /* registration work */
struct delayed_work unregister_work; /* unregistration work */
struct work_struct beep_work; /* scheduled task for beep event */
struct mutex mutex;
};
#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
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