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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 */
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