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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
16#define BIGBUF_SIZE 40000
17#define MAX_FRAME_SIZE 256 // maximum allowed ISO14443 frame
18#define MAX_PARITY_SIZE ((MAX_FRAME_SIZE + 7) / 8)
19#define MAX_MIFARE_FRAME_SIZE 18 // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC
20#define MAX_MIFARE_PARITY_SIZE 3 // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these
21#define CARD_MEMORY_SIZE 4096
22#define DMA_BUFFER_SIZE 128
23
24extern uint8_t *BigBuf_get_addr(void);
25extern uint8_t *BigBuf_get_EM_addr(void);
26extern uint16_t BigBuf_max_traceLen(void);
27extern void BigBuf_Clear(void);
28extern void BigBuf_Clear_ext(bool verbose);
29extern void BigBuf_Clear_keep_EM(void);
30extern uint8_t *BigBuf_malloc(uint16_t);
31extern void BigBuf_free(void);
32extern void BigBuf_free_keep_EM(void);
33extern void BigBuf_print_status(void);
34extern uint16_t BigBuf_get_traceLen(void);
35extern void clear_trace(void);
36extern void set_tracing(bool enable);
37extern bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);
38extern int LogTraceHitag(const uint8_t * btBytes, int iBits, int iSamples, uint32_t dwParity, int bReader);
39extern uint8_t emlSet(uint8_t *data, uint32_t offset, uint32_t length);
40#endif /* __BIGBUF_H */
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