#include "../src/rc522.h"
#include <avr/io.h>
#include "../lib/usart/src/usart.h"
#include "string.h"

#define	uchar	unsigned char
#define	uint	unsigned int
#define MAX_LEN 16
const int chipSelectPin = 10;
const int NRSTPD = 5;

uchar serNum[5];
uchar  writeDate[16] ={'T', 'e', 'n', 'g', ' ', 'B', 'o', 0, 0, 0, 0, 0, 0, 0, 0,0};

uchar sectorKeyA[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
int main() {                
	usart::init(1000000);
	printf("Hello");
   	PORTC |= (1<<PC6)|(1<<PC7);
	while(1) {
		MFRC522_Init();
		uchar i;
		uchar status;
		uchar str[MAX_LEN];
		uchar RC_size;
		uchar blockAddr;	//Select the address of the operation 0～63


		// searching card, return card type	
		while(MFRC522_Request(PICC_REQIDL, str) != MI_OK);	

		
		status = MFRC522_Anticoll(str);
		memcpy(serNum, str, 5);
		if (status == MI_OK)
		{
			printf("The card's number is  : %x%x%x%x%x%x\n\r",
				serNum[0],
				serNum[1],
				serNum[2],
				serNum[3],
				serNum[4]);
		}

		// select card, return card capacity
		RC_size = MFRC522_SelectTag(serNum);
		if (RC_size != 0)
		{}

		if(PINC & (1<<PC6)) {		
			// write data card
			blockAddr = 7;		// data block 7		
			status = MFRC522_Auth(PICC_AUTHENT1A, blockAddr, sectorKeyA, serNum);	// authentication 
			if (status == MI_OK)

			{
				// write data
				blockAddr = blockAddr - 3 ; 
				status = MFRC522_Write(blockAddr, writeDate);
				if(status == MI_OK)
				{
					printf("OK!\n\r");
				}
			}
		} else {
			// read card
			blockAddr = 7;		// data block 7		
			status = MFRC522_Auth(PICC_AUTHENT1A, blockAddr, sectorKeyA, serNum);	// authentication 
			if (status == MI_OK)
			{
				// read data
				blockAddr = blockAddr - 3 ; 
				status = MFRC522_Read(blockAddr, str);
				if (status == MI_OK)
				{
					printf("Read from the card ,the data is : \n\r");
					for (i=0; i<16; i++)
					{
						printf("%c", str[i]);
						if(writeDate[i] !=  str[i]) printf("Not equal");
					}
						printf("\n\r");
				}
			}
		}
		printf("\n\r");
		MFRC522_Halt();			// command card into sleeping mode              
			
	}

}