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67b5b57533
* Support "repeat" when holding a direction button * Support "repeat" when a direction button is held * Support "repeat" when a direction button is held * Support "repeat" when a direction button is held * Formatting violation - removed a trailing space * Removed unneeded return() statement
56 lines
1.5 KiB
C++
56 lines
1.5 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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#ifndef __DEBOUNCE_H__
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#define __DEBOUNCE_H__
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#include <cstdint>
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// consecutive # of times button input must be same (<=8)
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#define DEBOUNCE_COUNT 4
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#define DEBOUNCE_MASK ((1 << DEBOUNCE_COUNT) - 1)
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// # of timer0 ticks before a held button starts being counted as repeated presses
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#define REPEAT_INITIAL_DELAY 250
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#define REPEAT_SUBSEQUENT_DELAY 92
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class Debounce {
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public:
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bool feed(const uint8_t bit);
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uint8_t state() const {
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return state_;
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}
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void enable_repeat() {
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repeat_enabled_ = true;
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}
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private:
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uint8_t history_{0};
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uint8_t state_{0};
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bool repeat_enabled_{0};
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uint16_t repeat_ctr_{0};
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uint16_t held_time_{0};
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};
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#endif /*__DEBOUNCE_H__*/
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