git.zerfleddert.de Git - proxmark3-svn/blob - armsrc/iso14443a.h

   1 //-----------------------------------------------------------------------------
   2 // Merlok - June 2011
   3 // Gerhard de Koning Gans - May 2008
   4 // Hagen Fritsch - June 2010
   5 //
   6 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   7 // at your option, any later version. See the LICENSE.txt file for the text of
   8 // the license.
   9 //-----------------------------------------------------------------------------
  10 // Routines to support ISO 14443 type A.
  11 //-----------------------------------------------------------------------------
  12
  13 #ifndef __ISO14443A_H
  14 #define __ISO14443A_H
  15 #include "common.h"
  16 #include "mifaresniff.h"
  17
  18 // mifare reader                      over DMA buffer (SnoopIso14443a())!!!
  19 #define MIFARE_BUFF_OFFSET 3560  //              \/   \/   \/
  20 // card emulator memory
  21 #define EML_RESPONSES      4000
  22 #define CARD_MEMORY        6000
  23 #define CARD_MEMORY_LEN    4096
  24
  25 typedef struct nestedVector { uint32_t nt, ks1; } nestedVector;
  26
  27 typedef struct {
  28         enum {
  29                 DEMOD_UNSYNCD,
  30                 DEMOD_START_OF_COMMUNICATION,
  31                 DEMOD_MANCHESTER_D,
  32                 DEMOD_MANCHESTER_E,
  33                 DEMOD_MANCHESTER_F,
  34                 DEMOD_ERROR_WAIT
  35         }       state;
  36         int     bitCount;
  37         int     posCount;
  38         int     syncBit;
  39         int     parityBits;
  40         uint16_t    shiftReg;
  41         int     buffer;
  42         int     buff;
  43         int     samples;
  44         int     len;
  45         enum {
  46                 SUB_NONE,
  47                 SUB_FIRST_HALF,
  48                 SUB_SECOND_HALF
  49         }               sub;
  50         uint8_t   *output;
  51 } tDemod;
  52
  53 typedef struct {
  54         enum {
  55                 STATE_UNSYNCD,
  56                 STATE_START_OF_COMMUNICATION,
  57                 STATE_MILLER_X,
  58                 STATE_MILLER_Y,
  59                 STATE_MILLER_Z,
  60                 STATE_ERROR_WAIT
  61                 }               state;
  62                 uint16_t    shiftReg;
  63                 int     bitCnt;
  64                 int     byteCnt;
  65                 int     byteCntMax;
  66                 int     posCnt;
  67                 int     syncBit;
  68                 int     parityBits;
  69                 int     samples;
  70                 int     highCnt;
  71                 int     bitBuffer;
  72         enum {
  73                 DROP_NONE,
  74                 DROP_FIRST_HALF,
  75                 DROP_SECOND_HALF
  76         }               drop;
  77     uint8_t   *output;
  78 } tUart;
  79
  80
  81 extern byte_t oddparity (const byte_t bt);
  82 extern uint32_t GetParity(const uint8_t * pbtCmd, int iLen);
  83 extern void AppendCrc14443a(uint8_t* data, int len);
  84
  85 extern void ReaderTransmitShort(const uint8_t* bt);
  86 extern void ReaderTransmit(uint8_t* frame, int len);
  87 extern void ReaderTransmitPar(uint8_t* frame, int len, uint32_t par);
  88 extern int ReaderReceive(uint8_t* receivedAnswer);
  89 extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
  90
  91 extern void iso14443a_setup();
  92 extern int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr);
  93 extern void iso14a_set_trigger(int enable);
  94
  95 extern void iso14a_clear_tracelen(void);
  96 extern void iso14a_set_tracing(int enable);
  97
  98 #endif /* __ISO14443A_H */