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1 //-----------------------------------------------------------------------------

2 // Jonathan Westhues, Aug 2005

3 // Gerhard de Koning Gans, April 2008, May 2011

4 //

5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,

6 // at your option, any later version. See the LICENSE.txt file for the text of

7 // the license.

8 //-----------------------------------------------------------------------------

9 // BigBuf and functions to allocate/free parts of it.

10 //-----------------------------------------------------------------------------

11

12 #ifndef __BIGBUF_H

13 #define __BIGBUF_H

14

15 #include <stdbool.h> // for bool

16 #include "common.h" // for ramfunc

17

18 #define BIGBUF_SIZE 40000

19 #define MAX_FRAME_SIZE 256 // maximum allowed ISO14443 frame

20 #define MAX_PARITY_SIZE ((MAX_FRAME_SIZE + 7) / 8)

21 #define MAX_MIFARE_FRAME_SIZE 18 // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC

22 #define MAX_MIFARE_PARITY_SIZE 3 // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these

23 #define CARD_MEMORY_SIZE 4096

24 #define DMA_BUFFER_SIZE 128

25

26 extern uint8_t *BigBuf_get_addr(void);

27 extern uint8_t *BigBuf_get_EM_addr(void);

28 extern uint16_t BigBuf_max_traceLen(void);

29 extern void BigBuf_Clear(void);

30 extern void BigBuf_Clear_ext(bool verbose);

31 extern void BigBuf_Clear_keep_EM(void);

32 extern uint8_t *BigBuf_malloc(uint16_t);

33 extern void BigBuf_free(void);

34 extern void BigBuf_free_keep_EM(void);

35 extern void BigBuf_print_status(void);

36 extern uint16_t BigBuf_get_traceLen(void);

37 extern void clear_trace();

38 extern void set_tracing(bool enable);

39 extern bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);

40 extern int LogTraceHitag(const uint8_t * btBytes, int iBits, int iSamples, uint32_t dwParity, int bReader);

41 extern uint8_t emlSet(uint8_t *data, uint32_t offset, uint32_t length);

42 #endif /* __BIGBUF_H */