/******************************************************************************
* 函 数 名：write
* 功能描述：写块数据
* 输入参数：blockAddr--块地址;writeData--向块写16字节数据
* 返 回 值：成功返回MI_OK
******************************************************************************/
unsigned char RFID::write(unsigned char blockAddr, unsigned char *writeData)
{
unsigned char status;
unsigned int recvBits;
unsigned char i;
unsigned char buff[18];
buff[0] = PICC_WRITE;
buff[1] = blockAddr;
calculateCRC(buff, 2, &buff[2]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 4, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
status = MI_ERR;
if (status == MI_OK)
{
for (i=0; i<16; i++) //?FIFO?16Byte?? Datos a la FIFO 16Byte escribir
buff[i] = *(writeData+i);
calculateCRC(buff, 16, &buff[16]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 18, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
status = MI_ERR;
}
return status;
}
/*
* MFRC522Write -> write
* La escritura de datos de bloque
* blockAddr - dirección del bloque; WriteData - para escribir 16 bytes del bloque de datos
* Valor de retorno: el retorno exitoso MI_OK
*/
uint8_t RFID::write(uint8_t blockAddr, uint8_t *writeData)
{
uint8_t status;
uint16_t recvBits;
uint8_t i;
uint8_t buff[18];
buff[0] = PICC_WRITE;
buff[1] = blockAddr;
calculateCRC(buff, 2, &buff[2]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 4, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
{
status = MI_ERR;
}
if (status == MI_OK)
{
for (i=0; i<16; i++) //?FIFO?16Byte?? Datos a la FIFO 16Byte escribir
{
buff[i] = *(writeData+i);
}
calculateCRC(buff, 16, &buff[16]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 18, buff, &recvBits);
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
{
status = MI_ERR;
}
}
return status;
}
/*
* MFRC522Auth -> auth
* Verificar la contraseña de la tarjeta
* Los parámetros de entrada: AuthMode - Modo de autenticación de contraseña
0x60 = A 0x60 = validación KeyA
0x61 = B 0x61 = validación KeyB
BlockAddr-- bloque de direcciones
Sectorkey-- sector contraseña
serNum--,4? Tarjeta de número de serie, 4 bytes
* MI_OK Valor de retorno: el retorno exitoso MI_OK
*/
uint8_t RFID::auth(uint8_t authMode, uint8_t BlockAddr, uint8_t *Sectorkey, uint8_t *serNum)
{
uint8_t status;
uint16_t recvBits;
uint8_t i;
uint8_t buff[12];
//????+???+????+???? Verifique la dirección de comandos de bloques del sector + + contraseña + número de la tarjeta de serie
buff[0] = authMode;
buff[1] = BlockAddr;
for (i=0; i<6; i++)
{
buff[i+2] = *(Sectorkey+i);
}
for (i=0; i<4; i++)
{
buff[i+8] = *(serNum+i);
}
status = MFRC522ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
if ((status != MI_OK) || (!(readMFRC522(Status2Reg) & 0x08)))
{
status = MI_ERR;
}
return status;
}
/**
* MFRC522Anticoll -> anticoll
* Anti-detección de colisiones, la lectura del número de serie de la tarjeta de tarjeta
* @param serNum - devuelve el número de tarjeta 4 bytes de serie, los primeros 5 bytes de bytes de paridad
* @return retorno exitoso MI_OK
*/
uint8_t RFID::anticoll(uint8_t *serNum)
{
uint8_t status;
uint8_t i;
uint8_t serNumCheck=0;
uint16_t unLen;
//ClearBitMask(Status2Reg, 0x08); //TempSensclear
//ClearBitMask(CollReg,0x80); //ValuesAfterColl
writeMFRC522(BitFramingReg, 0x00); //TxLastBists = BitFramingReg[2..0]
serNum[0] = PICC_ANTICOLL;
serNum[1] = 0x20;
status = MFRC522ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);
if (status == MI_OK)
{
//?????? Compruebe el número de serie de la tarjeta
for (i=0; i<4; i++)
{
serNumCheck ^= serNum[i];
}
if (serNumCheck != serNum[i])
{
status = MI_ERR;
}
}
//SetBitMask(CollReg, 0x80); //ValuesAfterColl=1
return status;
}
/*
* MFRC522Auth -> auth
* Verificar la contraseña de la tarjeta
* Los parámetros de entrada: AuthMode - Modo de autenticación de contraseña
0x60 = A 0x60 = validación KeyA
0x61 = B 0x61 = validación KeyB
BlockAddr-- bloque de direcciones
Sectorkey-- sector contraseña
serNum--,4? Tarjeta de número de serie, 4 bytes
* MI_OK Valor de retorno: el retorno exitoso MI_OK
*/
unsigned char RFID::auth(unsigned char authMode, unsigned char BlockAddr, unsigned char *Sectorkey, unsigned char *serNum)
{
unsigned char status;
unsigned int recvBits;
unsigned char i;
unsigned char buff[12];
//????+???+????+???? Verifique la dirección de comandos de bloques del sector + + contraseña + número de la tarjeta de serie
buff[0] = authMode;
buff[1] = BlockAddr;
for (i=0; i<6; i++)
{
buff[i+2] = *(Sectorkey+i);
}
for (i=0; i<4; i++)
{
buff[i+8] = *(serNum+i);
}
status = MFRC522ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
if ((status != MI_OK) || (!(readMFRC522(Status2Reg) & 0x08)))
{
status = MI_ERR;
}
return status;
}
/******************************************************************************
* 函 数 名：selectTag
* 功能描述：选卡，读取卡存储器容量
* 输入参数：serNum--传入卡序列号
* 返 回 值：成功返回卡容量
******************************************************************************/
unsigned char RFID::selectTag(unsigned char *serNum)
{
unsigned char i;
unsigned char status;
unsigned char size;
unsigned int recvBits;
unsigned char buffer[9];
//ClearBitMask(Status2Reg, 0x08); //MFCrypto1On=0
buffer[0] = PICC_SElECTTAG;
buffer[1] = 0x70;
for (i=0; i<5; i++)
buffer[i+2] = *(serNum+i);
calculateCRC(buffer, 7, &buffer[7]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buffer, 9, buffer, &recvBits);
if ((status == MI_OK) && (recvBits == 0x18))
size = buffer[0];
else
size = 0;
return size;
}
/******************************************************************************
* 函 数 名：anticoll
* 功能描述：防冲突检测，读取选中卡片的卡序列号
* 输入参数：serNum--返回4字节卡序列号,第5字节为校验字节
* 返 回 值：成功返回MI_OK
******************************************************************************/
unsigned char RFID::anticoll(unsigned char *serNum)
{
unsigned char status;
unsigned char i;
unsigned char serNumCheck=0;
unsigned int unLen;
//ClearBitMask(Status2Reg, 0x08); //TempSensclear
//ClearBitMask(CollReg,0x80); //ValuesAfterColl
writeMFRC522(BitFramingReg, 0x00); //TxLastBists = BitFramingReg[2..0]
serNum[0] = PICC_ANTICOLL;
serNum[1] = 0x20;
status = MFRC522ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);
if (status == MI_OK)
{
//校验卡序列号
for (i=0; i<4; i++)
serNumCheck ^= serNum[i];
if (serNumCheck != serNum[i])
status = MI_ERR;
}
//SetBitMask(CollReg, 0x80); //ValuesAfterColl=1
return status;
}
/*
* MFRC522Halt -> halt
* Cartas de Mando para dormir
* Los parámetros de entrada: Ninguno
* Valor devuelto: Ninguno
*/
void RFID::halt()
{
unsigned char status;
unsigned int unLen;
unsigned char buff[4];
buff[0] = PICC_HALT;
buff[1] = 0;
calculateCRC(buff, 2, &buff[2]);
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 4, buff,&unLen);
}
/*
* MFRC522Halt -> halt
* Cartas de Mando para dormir
* Los parámetros de entrada: Ninguno
* Valor devuelto: Ninguno
*/
void RFID::halt()
{
uint8_t status;
uint16_t unLen;
uint8_t buff[4];
buff[0] = PICC_HALT;
buff[1] = 0;
calculateCRC(buff, 2, &buff[2]);
clearBitMask(Status2Reg, 0x08); // turn off encryption
status = MFRC522ToCard(PCD_TRANSCEIVE, buff, 4, buff,&unLen);
}
/******************************************************************************
* 函 数 名：read
* 功能描述：读块数据
* 输入参数：blockAddr--块地址;recvData--读出的块数据
* 返 回 值：成功返回MI_OK
******************************************************************************/
unsigned char RFID::read(unsigned char blockAddr, unsigned char *recvData)
{
unsigned char status;
unsigned int unLen;
recvData[0] = PICC_READ;
recvData[1] = blockAddr;
calculateCRC(recvData,2, &recvData[2]);
status = MFRC522ToCard(PCD_TRANSCEIVE, recvData, 4, recvData, &unLen);
if ((status != MI_OK) || (unLen != 0x90))
status = MI_ERR;
return status;
}
/******************************************************************************
* 函 数 名：MFRC522Request
* 功能描述：寻卡，读取卡类型号
* 输入参数：reqMode--寻卡方式，
* TagType--返回卡片类型
* 0x4400 = Mifare_UltraLight
* 0x0400 = Mifare_One(S50)
* 0x0200 = Mifare_One(S70)
* 0x0800 = Mifare_Pro(X)
* 0x4403 = Mifare_DESFire
* 返 回 值：成功返回MI_OK
******************************************************************************/
unsigned char RFID::MFRC522Request(unsigned char reqMode, unsigned char *TagType)
{
unsigned char status;
unsigned int backBits; //接收到的数据位数
writeMFRC522(BitFramingReg, 0x07); //TxLastBists = BitFramingReg[2..0] ???
TagType[0] = reqMode;
status = MFRC522ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits);
if ((status != MI_OK) || (backBits != 0x10))
status = MI_ERR;
return status;
}
/*
* MFRC522Read -> read
* Lectura de datos de bloque
* Los parámetros de entrada: blockAddr - dirección del bloque; recvData - leer un bloque de datos
* MI_OK Valor de retorno: el retorno exitoso MI_OK
*/
uint8_t RFID::read(uint8_t blockAddr, uint8_t *recvData)
{
uint8_t status;
uint16_t unLen;
recvData[0] = PICC_READ;
recvData[1] = blockAddr;
calculateCRC(recvData,2, &recvData[2]);
status = MFRC522ToCard(PCD_TRANSCEIVE, recvData, 4, recvData, &unLen);
if ((status != MI_OK) || (unLen != 0x90))
{
status = MI_ERR;
}
return status;
}
/*
* Nombre de la función: MFRC522_Request
* Descripción: Buscar las cartas, leer el número de tipo de tarjeta
* Los parámetros de entrada: reqMode - encontrar el modo de tarjeta,
* Tagtype - Devuelve el tipo de tarjeta
* 0x4400 = Mifare_UltraLight
* 0x0400 = Mifare_One(S50)
* 0x0200 = Mifare_One(S70)
* 0x0800 = Mifare_Pro(X)
* 0x4403 = Mifare_DESFire
* Valor de retorno: el retorno exitoso MI_OK
*/
uint8_t RFID::MFRC522Request(uint8_t reqMode, uint8_t *TagType)
{
uint8_t status;
uint16_t backBits; // Recibió bits de datos
writeMFRC522(BitFramingReg, 0x07); //TxLastBists = BitFramingReg[2..0] ???
TagType[0] = reqMode;
status = MFRC522ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits);
if ((status != MI_OK) || (backBits != 0x10))
{
status = MI_ERR;
}
return status;
}
/******************************************************************************
* 函 数 名：auth
* 功能描述：验证卡片密码
* 输入参数：authMode--密码验证模式
* 0x60 = 验证A密钥
* 0x61 = 验证B密钥
* BlockAddr--块地址
* Sectorkey--扇区密码
* serNum--卡片序列号，4字节
* 返 回 值：成功返回MI_OK
******************************************************************************/
unsigned char RFID::auth(unsigned char authMode, unsigned char BlockAddr, unsigned char *Sectorkey, unsigned char *serNum)
{
unsigned char status;
unsigned int recvBits;
unsigned char i;
unsigned char buff[12];
//验证指令+块地址＋扇区密码＋卡序列号
buff[0] = authMode;
buff[1] = BlockAddr;
for (i=0; i<6; i++)
buff[i+2] = *(Sectorkey+i);
for (i=0; i<4; i++)
buff[i+8] = *(serNum+i);
status = MFRC522ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
if ((status != MI_OK) || (!(readMFRC522(Status2Reg) & 0x08)))
status = MI_ERR;
return status;
}
