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#ifndef WIEGAND_H
#define WIEGAND_H
#include <stdint.h>
typedef void (*Pi_Wieg_CB_t)(int, uint32_t);
struct _Pi_Wieg_s;
typedef struct _Pi_Wieg_s Pi_Wieg_t;
Pi_Wieg_t *Pi_Wieg(int gpio_0, int gpio_1, Pi_Wieg_CB_t callback, int timeout);
/*
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.
A pointer to a private data type is returned. This should be passed
to Pi_Wieg_cancel if the decoder is to be cancelled.
*/
void Pi_Wieg_cancel(Pi_Wieg_t *wieg);
/*
This function releases the resources used by the decoder.
*/
#endif
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