📄 m500auc.c
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{
if (ReadIO(RegSecondaryStatus) & 0x07) // Check RxLastBits for error
{
status = MI_BITCOUNTERR;
printf("\nMI_Bitconterr");
}
else
{
ResetInfo(MInfo);
MInfo.nBytesToSend = 0;
//printf("\nauthent2 Start ........");
if ((status = M500PcdCmd(PCD_AUTHENT2,
MSndBuffer,
MRcvBuffer,
&MInfo)) == MI_OK)
{
if ( ReadIO(RegControl) & 0x08 ) // Crypto1 activated
{
status = MI_OK; printf("\nAUT2 ok 1crypto ative..%b02X", (block/4));
}
else
{
status = MI_AUTHERR;
printf("\nAuthent2 Error ");
}
}
}
}
}
return status;
}
///////////////////////////////////////////////////////////////////////
// M I F A R E R E A D
///////////////////////////////////////////////////////////////////////
char M500PiccRead( unsigned char addr,
unsigned char *_data)
{
char status = MI_OK;
char tmp = 0;
char bitsExpected;
FlushFIFO(); // empty FIFO
// long timeout
WriteIO(RegChannelRedundancy,0x0F); // RxCRC, TxCRC, Parity enable
// ************* Cmd Sequence **********************************
ResetInfo(MInfo);
MSndBuffer[0] = PICC_READ; // read command code
MSndBuffer[1] = addr;
MInfo.nBytesToSend = 2;
M500PcdSetTmo(4);
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status == MI_OK)
{
if (status != MI_NOTAGERR ) // no timeout occured
{
if (MInfo.nBitsReceived == 8 && (ReadIO(RegDecoderControl) & 0x01))
{
// upper nibble should be equal to lower nibble, otherwise
// there is a coding error on card side.
if ((MRcvBuffer[0] & 0x0f) == ((MRcvBuffer[0] >> 4) & 0x0f))
bitsExpected = 8;
else
{
status = MI_CODINGERR;
bitsExpected = 0; // data is copied to output
}
}
else
bitsExpected = 4;
if (MInfo.nBitsReceived ==bitsExpected ) // NACK
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
if ((MRcvBuffer[0] & 0x0a) == 0)
{
status = MI_NOTAUTHERR;
}
else
{
status = MI_CODEERR;
}
memcpy(_data,"0000000000000000",16); // in case of an error initialise
} // data
else if(MInfo.nBytesReceived !=16) //ACK
{
status = MI_BYTECOUNTERR;
memcpy(_data,"0000000000000000",16);
}
else
{ if (MInfo.nBytesReceived ==16)
memcpy(_data,MRcvBuffer,16);
}
}
}
M500PcdSetTmo(3); // short timeout
return status;
}
///////////////////////////////////////////////////////////////////////
// M I F A R E W R I T E
///////////////////////////////////////////////////////////////////////
char M500PiccWrite( unsigned char addr,
unsigned char *_data)
{
char status = MI_OK;
// ************* Cmd Sequence **********************************
ResetInfo(MInfo);
MSndBuffer[0] = PICC_WRITE; // Write command code
MSndBuffer[1] = addr;
MInfo.nBytesToSend = 2;
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status != MI_NOTAGERR) // no timeout error
{
if (MInfo.nBitsReceived != 4) // 4 bits are necessary
{
status = MI_BITCOUNTERR;
}
else // 4 bit received
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
if ((MRcvBuffer[0] & 0x0a) == 0)
{
status = MI_NOTAUTHERR;
}
else
{
if (MRcvBuffer[0] == 0x0a)
{
status = MI_OK;
}
else
{
status = MI_CODEERR;
}
}
}
}
if ( status == MI_OK)
{
M500PcdSetTmo(3); // long timeout
ResetInfo(MInfo);
memcpy(MSndBuffer,_data,16);
MInfo.nBytesToSend = 16;
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status & 0x80) // timeout occured
{
status = MI_NOTAGERR;
}
else
{
if (MInfo.nBitsReceived != 4) // 4 bits are necessary
{
status = MI_BITCOUNTERR;
}
else // 4 bit received
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
if ((MRcvBuffer[0] & 0x0a) == 0)
{
status = MI_WRITEERR;
}
else
{
if (MRcvBuffer[0] == 0x0a)
{
status = MI_OK;
}
else
{
status = MI_CODEERR;
}
}
}
}
M500PcdSetTmo(1); // short timeout
}
return status;
}
///////////////////////////////////////////////////////////////////////
// V A L U E M A N I P U L A T I O N
///////////////////////////////////////////////////////////////////////
char M500PiccValue(unsigned char dd_mode,
unsigned char addr,
unsigned char *value,
unsigned char trans_addr)
{
char status = MI_OK;
M500PcdSetTmo(1); // short timeout
// ************* Cmd Sequence **********************************
ResetInfo(MInfo);
MSndBuffer[0] = dd_mode; // Inc,Dec command code
MSndBuffer[1] = addr;
MInfo.nBytesToSend = 2;
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status != MI_NOTAGERR) // no timeout error
{
if (MInfo.nBitsReceived != 4) // 4 bits are necessary
{
status = MI_BITCOUNTERR;
}
else // 4 bit received
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
switch(MRcvBuffer[0])
{
case 0x00:
status = MI_NOTAUTHERR;
break;
case 0x0a:
status = MI_OK;
break;
case 0x01:
status = MI_VALERR;
break;
default:
status = MI_CODEERR;
break;
}
}
}
if ( status == MI_OK)
{
M500PcdSetTmo(3); // long timeout
ResetInfo(MInfo);
memcpy(MSndBuffer,value,4);
MInfo.nBytesToSend = 4;
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status == MI_OK) // no timeout occured
{
if (MInfo.nBitsReceived != 4) // 4 bits are necessary
{
status = MI_BITCOUNTERR;
}
else // 4 bit received
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
switch(MRcvBuffer[0])
{
case 0x00:
status = MI_NOTAUTHERR;
break;
case 0x01:
status = MI_VALERR;
break;
default:
status = MI_CODEERR;
break;
}
}
}
else
if (status == MI_NOTAGERR )
status = MI_OK; // no response after 4 byte value -
// transfer command has to follow
}
if ( status == MI_OK)
{
ResetInfo(MInfo);
MSndBuffer[0] = PICC_TRANSFER; // transfer command code
MSndBuffer[1] = trans_addr;
MInfo.nBytesToSend = 2;
status = M500PcdCmd(PCD_TRANSCEIVE,
MSndBuffer,
MRcvBuffer,
&MInfo);
if (status != MI_NOTAGERR) // timeout occured
{
if (MInfo.nBitsReceived != 4) // 4 bits are necessary
{
status = MI_BITCOUNTERR;
}
else // 4 bit received
{
MRcvBuffer[0] &= 0x0f; // mask out upper nibble
switch(MRcvBuffer[0])
{
case 0x00:
status = MI_NOTAUTHERR;
break;
case 0x0a:
status = MI_OK;
break;
case 0x01:
status = MI_VALERR;
break;
default:
status = MI_CODEERR;
break;
}
}
}
}
return status;
}
///////////////////////////////////////////////////////////////////////
// V A L U E M A N I P U L A T I O N W I T H B A C K U P
///////////////////////////////////////////////////////////////////////
char M500PiccValueDebit(unsigned char dd_mode,
unsigned char addr,
unsigned char *value)
{
char status = MI_OK;
M500PcdSetTmo(1); // short timeout
ResetInfo(MInfo);
MSndBuffer[0] = dd_mode; // Inc,Dec command code
MSndBuffer[1] = addr;
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