armsrc/BigBuf.h

   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
  24 extern uint8_t *BigBuf_get_addr(void);
  25 extern uint8_t *BigBuf_get_EM_addr(void);
  26 extern uint16_t BigBuf_max_traceLen(void);
  27 void BigBuf_Clear(void);
  28 extern uint8_t *BigBuf_malloc(uint16_t);
  29 extern void BigBuf_free(void);
  30 extern void BigBuf_free_keep_EM(void);
  31
  32 uint16_t BigBuf_get_traceLen(void);
  33 void clear_trace();
  34 void set_tracing(bool enable);
  35 bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag);
  36 int LogTraceHitag(const uint8_t * btBytes, int iBits, int iSamples, uint32_t dwParity, int bReader);
  37 #endif /* __BIGBUF_H */