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 {
  26         enum {
  27                 DEMOD_UNSYNCD,
  28                 DEMOD_HALF_SYNCD,
  29                 DEMOD_MOD_FIRST_HALF,
  30                 DEMOD_NOMOD_FIRST_HALF,
  31                 DEMOD_MANCHESTER_DATA
  32         } state;
  33         uint16_t bitCount;
  34         uint16_t collisionPos;
  35         uint16_t syncBit;
  36         uint16_t parityBits;
  37         uint16_t shiftReg;
  38         uint16_t samples;
  39         uint16_t len;
  40         uint8_t  *output;
  41 } tDemod;
  42
  43 typedef struct {
  44         enum {
  45                 STATE_UNSYNCD,
  46                 STATE_START_OF_COMMUNICATION,
  47                 STATE_MILLER_X,
  48                 STATE_MILLER_Y,
  49                 STATE_MILLER_Z,
  50                 STATE_ERROR_WAIT
  51                 }               state;
  52                 uint16_t    shiftReg;
  53                 int     bitCnt;
  54                 int     byteCnt;
  55                 int     byteCntMax;
  56                 int     posCnt;
  57                 int     syncBit;
  58                 int     parityBits;
  59                 int     samples;
  60                 int     highCnt;
  61                 int     bitBuffer;
  62         enum {
  63                 DROP_NONE,
  64                 DROP_FIRST_HALF,
  65                 DROP_SECOND_HALF
  66         }               drop;
  67     uint8_t   *output;
  68 } tUart;
  69
  70
  71 extern byte_t oddparity (const byte_t bt);
  72 extern uint32_t GetParity(const uint8_t *pbtCmd, int iLen);
  73 extern void AppendCrc14443a(uint8_t *data, int len);
  74
  75 extern void ReaderTransmit(uint8_t *frame, int len, uint32_t *timing);
  76 extern void ReaderTransmitBitsPar(uint8_t *frame, int bits, uint32_t par, uint32_t *timing);
  77 extern void ReaderTransmitPar(uint8_t *frame, int len, uint32_t par, uint32_t *timing);
  78 extern int ReaderReceive(uint8_t *receivedAnswer);
  79 extern int ReaderReceivePar(uint8_t *receivedAnswer, uint32_t *parptr);
  80
  81 extern void iso14443a_setup();
  82 extern int iso14_apdu(uint8_t *cmd, size_t cmd_len, void *data);
  83 extern int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *resp_data, uint32_t *cuid_ptr);
  84 extern void iso14a_set_trigger(bool enable);
  85 extern void iso14a_set_timeout(uint32_t timeout);
  86
  87 extern void iso14a_clear_tracelen();
  88 extern void iso14a_set_tracing(bool enable);
  89
  90 #endif /* __ISO14443A_H */