mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-26 07:49:36 -05:00
06b7a0419e
* Resolve button responsiveness * Resolve button responsiveness * Clang * Clang * Clang try again * Removed unnecessary lines * Address review comments * Add comments per reviewer suggestion * Clang test * Clang retry
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* 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, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __DEBOUNCE_H__
|
|
#define __DEBOUNCE_H__
|
|
|
|
#include <cstdint>
|
|
|
|
// consecutive # of times button input must be same (<=8)
|
|
#define DEBOUNCE_COUNT 4
|
|
#define DEBOUNCE_MASK ((1 << DEBOUNCE_COUNT) - 1)
|
|
|
|
// # of timer0 ticks before a held button starts being counted as repeated presses
|
|
#define REPEAT_INITIAL_DELAY 250
|
|
#define REPEAT_SUBSEQUENT_DELAY 92
|
|
#define LONG_PRESS_DELAY 800
|
|
|
|
class Debounce {
|
|
public:
|
|
bool feed(const uint8_t bit);
|
|
uint8_t state();
|
|
void enable_repeat();
|
|
bool get_long_press_enabled() const;
|
|
void set_long_press_enabled(bool v);
|
|
bool long_press_occurred();
|
|
|
|
private:
|
|
uint8_t history_{0}; // shift register of last 8 reads from button hardware state bit
|
|
|
|
uint8_t state_{0}; // actual button hardware state (after debounce logic), 1=pressed
|
|
|
|
uint8_t state_to_report_{0}; // pseudo button state reported by state() function (may be masked off or simulated presses)
|
|
|
|
bool repeat_enabled_{false}; // TRUE if this button is enabled to auto-repeat when held down (ignored if long_press_enabled)
|
|
|
|
uint16_t repeat_ctr_{0}; // used for timing auto-repeat simulated button presses when button is held down and repeat_enabled
|
|
|
|
uint16_t held_time_{0}; // number of ticks that the button has been held down (compared against REPEAT and LONG_PRESS delays)
|
|
|
|
bool pulse_upon_release_{false}; // TRUE when button is being held down when long_press_enabled and LONG_PRESS_DELAY hasn't been reached yet
|
|
|
|
bool simulated_pulse_{false}; // TRUE if a simulated button press is active following a short button press (only when long_press_enabled)
|
|
|
|
bool long_press_enabled_{false}; // TRUE when button is in long-press mode (takes precedence over the repeat_enabled flag)
|
|
|
|
bool long_press_occurred_{false}; // TRUE when button is being held down and LONG_PRESS_DELAY has been reached (only when long_press_enabled)
|
|
};
|
|
|
|
#endif /*__DEBOUNCE_H__*/
|