123c07aedd
Original implementation was keeping registered input device for SND_BEEP and SND_TONE events all time. This patch changes this behaviour: If digital PC Beep is turned off using universal control switch, the input device is unregistered. Explanation: The kd_mksound() send SND_BEEP and SND_TONE only to last registered device acceping those events. It means that the HDA Intel audio driver blocks also the internal PC Speaker device (pcspkr.c driver) even if the HDA Beep is muted. The user can easy disable all beeps using 'setterm -blength 0' or 'xset b off' command. Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* Digital Beep Input Interface for HD-audio codec
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*
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* Author: Matthew Ranostay <mranostay@embeddedalley.com>
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* Copyright (c) 2008 Embedded Alley Solutions Inc
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*
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* This driver is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __SOUND_HDA_BEEP_H
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#define __SOUND_HDA_BEEP_H
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#include "hda_codec.h"
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/* beep information */
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struct hda_beep {
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struct input_dev *dev;
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struct hda_codec *codec;
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char phys[32];
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int tone;
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hda_nid_t nid;
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unsigned int enabled:1;
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unsigned int request_enable:1;
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unsigned int linear_tone:1; /* linear tone for IDT/STAC codec */
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struct work_struct register_work; /* scheduled task for beep event */
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struct work_struct beep_work; /* scheduled task for beep event */
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struct mutex mutex;
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};
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#ifdef CONFIG_SND_HDA_INPUT_BEEP
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int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);
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int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
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void snd_hda_detach_beep_device(struct hda_codec *codec);
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#else
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#define snd_hda_attach_beep_device(...) 0
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#define snd_hda_detach_beep_device(...)
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#endif
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#endif
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