forked from Minki/linux
680cd53652
A digital beep generator can be used via input layer. Signed-off-by: Kusanagi Kouichi <slash@ma.neweb.ne.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
46 lines
1.4 KiB
C
46 lines
1.4 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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int nid;
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int enabled;
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struct work_struct beep_work; /* scheduled task for beep event */
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};
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#ifdef CONFIG_SND_HDA_INPUT_BEEP
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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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