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Initial commit for the firmware. Used the 20090306_ela version as baseline.

Browse source 
It is identical to the popular 20081211, with the doob addition (20090301), a
linux client, and two additional commands for LF analysis. Let me know if
you find issues here!
This commit is contained in:
edouard@lafargue.name 2009-04-09 06:43:20 +00:00
commit 6658905f18
91 changed files with 16661 additions and 0 deletions
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35
common/iso14443_crc.c Normal file
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//-----------------------------------------------------------------------------
// Routines to compute the CRCs (two different flavours, just for confusion)
// required for ISO 14443, swiped directly from the spec.
//-----------------------------------------------------------------------------
#define CRC_14443_A 0x6363 /* ITU-V.41 */
#define CRC_14443_B 0xFFFF /* ISO/IEC 13239 (formerly ISO/IEC 3309) */
static unsigned short UpdateCrc14443(unsigned char ch, unsigned short *lpwCrc)
{
ch = (ch ^ (unsigned char) ((*lpwCrc) & 0x00FF));
ch = (ch ^ (ch << 4));
*lpwCrc = (*lpwCrc >> 8) ^ ((unsigned short) ch << 8) ^
((unsigned short) ch << 3) ^ ((unsigned short) ch >> 4);
return (*lpwCrc);
}
static void ComputeCrc14443(int CrcType, BYTE *Data, int Length,
BYTE *TransmitFirst, BYTE *TransmitSecond)
{
unsigned char chBlock;
unsigned short wCrc=CrcType;
do {
chBlock = *Data++;
UpdateCrc14443(chBlock, &wCrc);
} while (--Length);
if (CrcType == CRC_14443_B)
wCrc = ~wCrc; /* ISO/IEC 13239 (formerly ISO/IEC 3309) */
*TransmitFirst = (BYTE) (wCrc & 0xFF);
*TransmitSecond = (BYTE) ((wCrc >> 8) & 0xFF);
return;
}