#ifndef MFRC522_H
#define MFRC522_H

#include "../../io/SoftSPI.h"

/**
 * RFID reader based on MFRC522
 * attached via SPI
 *
 * http://www.nxp.com/documents/data_sheet/MFRC522.pdf
 *
 */
class MFRC522 {

	struct OP {
		uint8_t addr : 7;		// bits 0-6
		uint8_t rw : 1;			// bit 7 [MSB] 1 = read, 0 = write
	};

	enum class Register {

		COMMAND_REG = 0x01,
		INTERRUPTS_REG = 0x02,
		ERROR_REG = 0x06,
		STATUS1_REG = 0x07,
		STATUS2_REG = 0x08,
		FIFI_DATA_REG = 0x09,	// access fifo buffer
		FIFO_SIZE_REG = 0x0A,	// number of available fifo data
		MOD_REG = 0x11,
		DEMOG_REG = 0x19,

		TEST_SEL_1_REG = 0x31,
		TEST_SEL_2_REG = 0x32,
		VERSION_REG = 0x37,		// software version

	};

	struct CommandReg {
		uint8_t command : 4;
		uint8_t power_down : 1;
		uint8_t receiver_off : 1;
		uint8_t reserved : 2;
	};

	struct InterruptsReg {
		uint8_t timerInterruptEnable : 1;
		uint8_t errorInterruptEnable : 1;
		uint8_t loAlertInterruptEnable : 1;
		uint8_t hiAlertInterruptEnable : 1;
		uint8_t idleInterruptEnable : 1;
		uint8_t rxInterruptEnable : 1;
		uint8_t txInterruptEnable : 1;
		uint8_t inverted : 1;
	};

private:

	SoftSPI spi;

public:

	MFRC522() {
		;
	}

	/** init */
	void init() {
		spi.init();
	}


};

#endif // MFRC522_H