/**
    @modified picospuch
*/

#ifndef __PN532_I2C_H__
#define __PN532_I2C_H__

#include <Wire.h>
#include "PN532/PN532/PN532Interface.h"

class PN532_I2C : public PN532Interface {
  public:
    PN532_I2C(TwoWire& wire);

    void begin();
    void wakeup();
    virtual int8_t writeCommand(const uint8_t* header, uint8_t hlen, const uint8_t* body = 0, uint8_t blen = 0);
    int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout);

  private:
    TwoWire* _wire;
    uint8_t command;

    int8_t readAckFrame();
    int16_t getResponseLength(uint8_t buf[], uint8_t len, uint16_t timeout);

    inline uint8_t write(uint8_t data) {
        #if ARDUINO >= 100
        return _wire->write(data);
        #else
        return _wire->send(data);
        #endif
    }

    inline uint8_t read() {
        #if ARDUINO >= 100
        return _wire->read();
        #else
        return _wire->receive();
        #endif
    }
};

#endif
