/*
 * RFID.h
 *
 *  Created on: Jan 16, 2022
 *      Author: hussam
 */



#ifndef RFID_H_
#define RFID_H_


#include "stdbool.h"
#include "stdint.h"


#define MFRC522_CS_LOW          MFRC522_CS_PORT->BSRRH = MFRC522_CS_PIN;
#define MFRC522_CS_HIGH         MFRC522_CS_PORT->BSRRL = MFRC522_CS_PIN;

/* MFRC522 Commands */
#define PCD_IDLE            0x00   //NO action; Cancel the current command
#define PCD_AUTHENT           0x0E   //Authentication Key
#define PCD_RECEIVE           0x08   //Receive Data
#define PCD_TRANSMIT          0x04   //Transmit data
#define PCD_TRANSCEIVE          0x0C   //Transmit and receive data,
#define PCD_RESETPHASE          0x0F   //Reset
#define PCD_CALCCRC           0x03   //CRC Calculate

/* Mifare_One card command word */
#define PICC_REQIDL           0x26   // find the antenna area does not enter hibernation
#define PICC_REQALL           0x52   // find all the cards antenna area
#define PICC_ANTICOLL         0x93   // anti-collision
#define PICC_SElECTTAG          0x93   // election card
#define PICC_AUTHENT1A          0x60   // authentication key A
#define PICC_AUTHENT1B          0x61   // authentication key B
#define PICC_READ           0x30   // Read Block
#define PICC_WRITE            0xA0   // write block
#define PICC_DECREMENT          0xC0   // debit
#define PICC_INCREMENT          0xC1   // recharge
#define PICC_RESTORE          0xC2   // transfer block data to the buffer
#define PICC_TRANSFER         0xB0   // save the data in the buffer
#define PICC_HALT           0x50   // Sleep

/* MFRC522 Registers */
//Page 0: Command and Status
#define MFRC522_REG_RESERVED00      0x00
#define MFRC522_REG_COMMAND       0x01
#define MFRC522_REG_COMM_IE_N     0x02
#define MFRC522_REG_DIV1_EN       0x03
#define MFRC522_REG_COMM_IRQ      0x04
#define MFRC522_REG_DIV_IRQ       0x05
#define MFRC522_REG_ERROR       0x06
#define MFRC522_REG_STATUS1       0x07
#define MFRC522_REG_STATUS2       0x08
#define MFRC522_REG_FIFO_DATA     0x09
#define MFRC522_REG_FIFO_LEVEL      0x0A
#define MFRC522_REG_WATER_LEVEL     0x0B
#define MFRC522_REG_CONTROL       0x0C
#define MFRC522_REG_BIT_FRAMING     0x0D
#define MFRC522_REG_COLL        0x0E
#define MFRC522_REG_RESERVED01      0x0F
//Page 1: Command
#define MFRC522_REG_RESERVED10      0x10
#define MFRC522_REG_MODE        0x11
#define MFRC522_REG_TX_MODE       0x12
#define MFRC522_REG_RX_MODE       0x13
#define MFRC522_REG_TX_CONTROL      0x14
#define MFRC522_REG_TX_AUTO       0x15
#define MFRC522_REG_TX_SELL       0x16
#define MFRC522_REG_RX_SELL       0x17
#define MFRC522_REG_RX_THRESHOLD    0x18
#define MFRC522_REG_DEMOD       0x19
#define MFRC522_REG_RESERVED11      0x1A
#define MFRC522_REG_RESERVED12      0x1B
#define MFRC522_REG_MIFARE        0x1C
#define MFRC522_REG_RESERVED13      0x1D
#define MFRC522_REG_RESERVED14      0x1E
#define MFRC522_REG_SERIALSPEED     0x1F
//Page 2: CFG
#define MFRC522_REG_RESERVED20      0x20
#define MFRC522_REG_CRC_RESULT_M    0x21
#define MFRC522_REG_CRC_RESULT_L    0x22
#define MFRC522_REG_RESERVED21      0x23
#define MFRC522_REG_MOD_WIDTH     0x24
#define MFRC522_REG_RESERVED22      0x25
#define MFRC522_REG_RF_CFG        0x26
#define MFRC522_REG_GS_N        0x27
#define MFRC522_REG_CWGS_PREG     0x28
#define MFRC522_REG__MODGS_PREG     0x29
#define MFRC522_REG_T_MODE        0x2A
#define MFRC522_REG_T_PRESCALER     0x2B
#define MFRC522_REG_T_RELOAD_H      0x2C
#define MFRC522_REG_T_RELOAD_L      0x2D
#define MFRC522_REG_T_COUNTER_VALUE_H 0x2E
#define MFRC522_REG_T_COUNTER_VALUE_L 0x2F
//Page 3:TestRegister
#define MFRC522_REG_RESERVED30      0x30
#define MFRC522_REG_TEST_SEL1     0x31
#define MFRC522_REG_TEST_SEL2     0x32
#define MFRC522_REG_TEST_PIN_EN     0x33
#define MFRC522_REG_TEST_PIN_VALUE    0x34
#define MFRC522_REG_TEST_BUS      0x35
#define MFRC522_REG_AUTO_TEST     0x36
#define MFRC522_REG_VERSION       0x37
#define MFRC522_REG_ANALOG_TEST     0x38
#define MFRC522_REG_TEST_ADC1     0x39
#define MFRC522_REG_TEST_ADC2     0x3A
#define MFRC522_REG_TEST_ADC0     0x3B
#define MFRC522_REG_RESERVED31      0x3C
#define MFRC522_REG_RESERVED32      0x3D
#define MFRC522_REG_RESERVED33      0x3E
#define MFRC522_REG_RESERVED34      0x3F
//Dummy byte
#define MFRC522_DUMMY         0x00

#define MFRC522_MAX_LEN         16


/**
 * @brief initialize function
 */
void rc522_init(void);

/**
 * @brief read register
 */
uint8_t rc522_regRead8(uint8_t reg);

/**
 * @brief write register
 */
void rc522_regWrite8(uint8_t reg, uint8_t data8);

/**
 * @brief set bit
 */
void rc522_setBit(uint8_t reg, uint8_t mask);

/**
 * @brief clear bit
 */
void rc522_clearBit(uint8_t reg, uint8_t mask);

/**
 * @brief reset function
 */
void rc522_reset(void);

/**
 * @brief Antenna ON
 */
void rc522_antennaON(void);

/**
 * @brief Check card
 */
bool rc522_checkCard(uint8_t *id);

/**
 * @brief Request function
 */
bool rc522_request(uint8_t reqMode, uint8_t *tagType);

/**
 * @brief to Card
 */
bool rc522_toCard(
    uint8_t command,
    uint8_t* sendData,
    uint8_t sendLen,
    uint8_t* backData,
    uint16_t* backLen);

/**
 * @brief Anti-Collis
 */
bool rc522_antiColl(uint8_t* serNum);

/**
 * @brief Halt
 */
void rc522_halt(void);

/**
 * @brief calculate CRC
 */
void rc522_calculateCRC(uint8_t*  pIndata, uint8_t len, uint8_t* pOutData);

/**
 * @brief compare IDs
 */
bool rc522_compareIds(uint8_t *idCurrent, uint8_t *idReference);


#endif /* RFID_H_ */