linux-stable/sound/pci/hda/hda_beep.h
Takashi Iwai 9bb1fe390d ALSA: hda - Fix beep_mode option value
The beep_mode option value was wrongly defined: it must be 0 = off and
1 = on.

Also, evaluate the beep_mode value at snd_hda_attach_beep_device()
properly so that no device is created when beep_mode=0 is given.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 15:33:49 +01:00

56 lines
1.8 KiB
C

/*
* 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
#define snd_hda_attach_beep_device(...) 0
#define snd_hda_detach_beep_device(...)
#endif
#endif