mirror of https://github.com/rusefi/rusefi.git
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/**
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* @file debounce.h
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* @brief Generic button debounce class
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* https://en.wikipedia.org/wiki/Switch#Contact_bounce
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* If we don't 'debounce' our button inputs, we may mistakenly
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* read a single button press as multiple events.
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*
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* @date Aug 31, 2020
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* @author David Holdeman, (c) 2020
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*/
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#pragma once
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#include "io_pins.h"
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class ButtonDebounce {
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public:
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explicit ButtonDebounce(const char* name);
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void init(efitimems_t threshold, brain_pin_e &pin, pin_input_mode_e &mode, bool inverted = false);
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void stopConfiguration();
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void startConfiguration();
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bool readPinEvent();
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bool readPinState();
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bool readPinState2(bool valueWithinThreshold);
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static void stopConfigurationList();
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static void startConfigurationList();
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static void debug();
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bool getPhysicalState();
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private:
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const char* const m_name;
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efidur_t m_threshold;
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Timer timeLast;
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brain_pin_e *m_pin;
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brain_pin_e active_pin = Gpio::Unassigned;
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pin_input_mode_e *m_mode;
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pin_input_mode_e active_mode = PI_DEFAULT;
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bool storedValue = false;
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bool m_inverted = false;
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bool isInstanceRegisteredInGlobalList = false;
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bool needsPinInitialization = true;
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ButtonDebounce *nextDebounce = nullptr;
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static ButtonDebounce* s_firstDebounce;
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};
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void initButtonDebounce();
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