forked from luck/tmp_suning_uos_patched
e914b25e37
While playing the digital beep tone, the codec shouldn't be turned off. This patch adds proper snd_hda_power_up()/down() calls at each time when the beep is played or off. Also, this fixes automatically an unnecessary codec power-up at detaching the beep device when the beep isn't being played. Signed-off-by: Takashi Iwai <tiwai@suse.de>
58 lines
1.7 KiB
C
58 lines
1.7 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
|
|
|
|
/* beep information */
|
|
struct hda_beep {
|
|
struct input_dev *dev;
|
|
struct hda_codec *codec;
|
|
char phys[32];
|
|
int tone;
|
|
hda_nid_t nid;
|
|
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;
|
|
};
|
|
|
|
#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
|