/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2006-2007 Robert Keevil * * This program 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ void piezo_init(void); void piezo_play(unsigned short inv_freq, unsigned char form); void piezo_play_for_tick(unsigned short inv_freq, unsigned char form, unsigned int dur); void piezo_play_for_usec(unsigned short inv_freq, unsigned char form, unsigned int dur); void piezo_stop(void); void piezo_clear(void); bool piezo_busy(void); unsigned int piezo_hz(unsigned int hz); void piezo_button_beep(bool beep, bool force);