button.h

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#ifndef _BUTTON_H_
#define _BUTTON_H_

#include <stdint.h>

#define MAX_BUTTONS     4

enum button_mode {
    BUTTON_ACTIVE_LOW = 0,
    BUTTON_ACTIVE_HIGH = 1
};

enum button_press_duration {
    BUTTON_SHORT_PRESS = 0,
    BUTTON_LONG_PRESS = 1
};


void button_init(void (*cb)(uint8_t num, enum button_press_duration duration));

uint8_t button_is_pressed(uint8_t num);

#endif /* _BUTTON_H_ */