32 lines
1.4 KiB
C
32 lines
1.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006-2007 Robert Keevil
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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void piezo_init(void);
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void piezo_play(unsigned short inv_freq, unsigned char form);
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void piezo_play_for_tick(unsigned short inv_freq,
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unsigned char form, unsigned int dur);
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void piezo_play_for_usec(unsigned short inv_freq,
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unsigned char form, unsigned int dur);
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void piezo_stop(void);
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void piezo_clear(void);
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bool piezo_busy(void);
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unsigned int piezo_hz(unsigned int hz);
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void piezo_button_beep(unsigned short hz, unsigned short dur, bool force);
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