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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 //-----------------------------------------------------------------------------
12
13 #ifndef __ISO14443A_H
14 #define __ISO14443A_H
15 #include "common.h"
16 #include "mifaresniff.h"
17
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;
40
41 typedef enum {
42 MOD_NOMOD = 0,
43 MOD_SECOND_HALF,
44 MOD_FIRST_HALF,
45 MOD_BOTH_HALVES
46 } Modulation_t;
47
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;
72
73
74
75 extern byte_t oddparity (const byte_t bt);
76 extern void GetParity(const uint8_t *pbtCmd, uint16_t len, uint8_t *par);
77 extern void AppendCrc14443a(uint8_t *data, int len);
78
79 extern void ReaderTransmit(uint8_t *frame, uint16_t len, uint32_t *timing);
80 extern void ReaderTransmitBitsPar(uint8_t *frame, uint16_t bits, uint8_t *par, uint32_t *timing);
81 extern void ReaderTransmitPar(uint8_t *frame, uint16_t len, uint8_t *par, uint32_t *timing);
82 extern int ReaderReceive(uint8_t *receivedAnswer, uint8_t *par);
83
84 extern void iso14443a_setup(uint8_t fpga_minor_mode);
85 extern int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data);
86 extern int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *resp_data, uint32_t *cuid_ptr);
87 extern void iso14a_set_trigger(bool enable);
88
89 #endif /* __ISO14443A_H */
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