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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 | // 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 ReaderTransmit(uint8_t* frame, int len, uint32_t *timing); | |
86 | extern void ReaderTransmitBitsPar(uint8_t* frame, int bits, uint32_t par, uint32_t *timing); | |
87 | extern void ReaderTransmitPar(uint8_t* frame, int len, uint32_t par, uint32_t *timing); | |
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 iso14_apdu(uint8_t * cmd, size_t cmd_len, void * data); | |
93 | extern int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr); | |
94 | extern void iso14a_set_trigger(bool enable); | |
95 | extern void iso14a_set_timeout(uint32_t timeout); | |
96 | ||
97 | extern void iso14a_clear_tracelen(); | |
98 | extern void iso14a_set_tracing(bool enable); | |
99 | ||
100 | #endif /* __ISO14443A_H */ |