| | 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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