mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program 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, or (at your option)
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* any later version.
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*
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* This program 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "debounce.hpp"
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#include "utility.hpp"
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bool Debounce::feed(const uint8_t bit) {
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history_ = (history_ << 1) | (bit & 1);
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if( history_ == 0b00001111 ) {
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state_ = 1;
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return true;
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}
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if( history_ == 0b11110000 ) {
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state_ = 0;
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return true;
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}
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return false;
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}
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