debounceddigitalinpolling.cpp

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#include <semf/input/digitalin/debounceddigitalinpolling.h>
#include <semf/utils/core/debug.h>
 
namespace semf
{
DebouncedDigitalInPolling::DebouncedDigitalInPolling(Gpio& gpio, uint32_t debounceLowTime, uint32_t debounceHighTime, bool inverted)
: DigitalInPolling(gpio, inverted),
  m_debounceLowTime(debounceLowTime),
  m_debounceHighTime(debounceHighTime)
{
}
 
DebouncedDigitalInPolling::DebouncedDigitalInPolling(Gpio& gpio, app::TimeBase& timeBase, uint32_t debounceLowTime, uint32_t debounceHighTime, bool inverted)
: DigitalInPolling(gpio, timeBase, inverted),
  m_debounceLowTime(debounceLowTime),
  m_debounceHighTime(debounceHighTime)
{
}
 
void DebouncedDigitalInPolling::setDebounceHighTime(uint32_t time)
{
    SEMF_INFO("set high time to %u", time);
    m_debounceHighTime = time;
}
 
void DebouncedDigitalInPolling::setDebounceLowTime(uint32_t time)
{
    SEMF_INFO("set low time to %u", time);
    m_debounceLowTime = time;
}
 
void DebouncedDigitalInPolling::tick()
{
    app::DigitalIn::State oldState = state();
    app::DigitalIn::State newState = DigitalIn::state();
    if (oldState == app::DigitalIn::State::Low && newState == app::DigitalIn::State::High)
    {
        m_lowTime = 0;
        ++m_highTime;
        if (m_highTime >= m_debounceHighTime)
        {
            setState(app::DigitalIn::State::High);
            SEMF_INFO("changed to high");
            changedToHigh();
        }
    }
    else if (oldState == app::DigitalIn::State::High && newState == app::DigitalIn::State::Low)
    {
        m_highTime = 0;
        ++m_lowTime;
        if (m_lowTime >= m_debounceLowTime)
        {
            setState(app::DigitalIn::State::Low);
            SEMF_INFO("changed to low");
            changedToLow();
        }
    }
    else
    {
        m_lowTime = 0;
        m_highTime = 0;
    }
}
} /* namespace semf */