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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 //-----------------------------------------------------------------------------

13 #ifndef __ISO14443A_H

14 #define __ISO14443A_H

15 #include "common.h"

16 #include "mifaresniff.h"

18 typedef struct {

19 enum {

20 DEMOD_UNSYNCD,

21 // DEMOD_HALF_SYNCD,

22 // DEMOD_MOD_FIRST_HALF,

23 // DEMOD_NOMOD_FIRST_HALF,

24 DEMOD_MANCHESTER_DATA

25 } state;

26 uint16_t twoBits;

27 uint16_t highCnt;

28 uint16_t bitCount;

29 uint16_t collisionPos;

30 uint16_t syncBit;

31 uint8_t parityBits;

32 uint8_t parityLen;

33 uint16_t shiftReg;

34 uint16_t samples;

35 uint16_t len;

36 uint32_t startTime, endTime;

37 uint8_t *output;

38 uint8_t *parity;

39 } tDemod;

41 typedef enum {

42 MOD_NOMOD = 0,

43 MOD_SECOND_HALF,

44 MOD_FIRST_HALF,

45 MOD_BOTH_HALVES

46 } Modulation_t;

48 typedef struct {

49 enum {

50 STATE_UNSYNCD,

51 STATE_START_OF_COMMUNICATION,

52 STATE_MILLER_X,

53 STATE_MILLER_Y,

54 STATE_MILLER_Z,

55 // DROP_NONE,

56 // DROP_FIRST_HALF,

57 } state;

58 uint16_t shiftReg;

59 uint16_t bitCount;

60 uint16_t len;

61 uint16_t byteCntMax;

62 uint16_t posCnt;

63 uint16_t syncBit;

64 uint8_t parityBits;

65 uint8_t parityLen;

66 uint16_t highCnt;

67 uint16_t twoBits;

68 uint32_t startTime, endTime;

69 uint8_t *output;

70 uint8_t *parity;

71 } tUart;

 extern byte_t oddparity (const byte_t bt);

 extern void GetParity(const uint8_t *pbtCmd, uint16_t len, uint8_t *par);

 extern void AppendCrc14443a(uint8_t *data, int len);

 extern void ReaderTransmit(uint8_t *frame, uint16_t len, uint32_t *timing);

 extern void ReaderTransmitBitsPar(uint8_t *frame, uint16_t bits, uint8_t *par, uint32_t *timing);

 extern void ReaderTransmitPar(uint8_t *frame, uint16_t len, uint8_t *par, uint32_t *timing);

 extern int ReaderReceive(uint8_t *receivedAnswer, uint8_t *par);

 extern void iso14443a_setup(uint8_t fpga_minor_mode);

 extern int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data);

 extern int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *resp_data, uint32_t *cuid_ptr);

 extern void iso14a_set_trigger(bool enable);

89 #endif /* __ISO14443A_H */