USB_UVC_DETECT/gpio_explorer.hpp

#include <gpiod.h>
#include <list>
#include <mutex>
// This is a class GPIO explorer that uses the libgpiod library to read the state of a GPIO pin.

class GPIOExplorer
{
public:
    GPIOExplorer(const char *chipname, int line_offset);
    ~GPIOExplorer();
    int setWaitingTime(int nTime){
        std::lock_guard<std::mutex> lock(m_mutex);
        m_nWaitingTime = nTime;
    }
    int read();
    int monitorRisingEdge();
    bool getFailingStatus(int index) { 
        return FailingStatus & (1 << index);
        };
    void resetFailingStatus(int index) { 
        std::lock_guard<std::mutex> lock(m_mutex);
        FailingStatus = FailingStatus & ~(1 << index);
        }
    std::mutex* getMutex(){return &m_mutex;}
    bool detectZWave();
    void close();

private:
    struct gpiod_chip *chip;
    struct gpiod_line *line;

    std::list<int> m_StatusList;

    bool StatusKeep{false};

    unsigned char FailingStatus{0x00};

    std::mutex m_mutex;

    int m_nWaitingTime = 50;
};

extern GPIOExplorer* g_gpioExplorer;