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#ifndef WIEGAND_HPP
#define WIEGAND_HPP
#include <stdint.h>
typedef void (*WiegandCB_t)(int, uint32_t);
class Wiegand
{
int mygpio_0, mygpio_1, mytimeout, in_code, bits;
WiegandCB_t mycallback;
uint32_t num;
uint32_t code_timeout;
void _cb(int gpio, int level, uint32_t tick);
/* Need a static callback to link with C. */
static void _cbEx(int gpio, int level, uint32_t tick, void *user);
public:
Wiegand(int gpio_0, int gpio_1, WiegandCB_t callback, int timeout=5);
/*
This function establishes a Wiegand decoder on gpio_0 and gpio_1.
A gap of timeout milliseconds without a new bit indicates
the end of a code.
When the code is ended the callback function is called with the code
bit length and value.
*/
void cancel(void);
/*
This function releases the resources used by the decoder.
*/
};
#endif
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