armsrc/BigBuf.h

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // See LICENSE.txt for the text of the license.
  15 //-----------------------------------------------------------------------------
  16 // BigBuf and functions to allocate/free parts of it.
  17 //-----------------------------------------------------------------------------
  18
  19 #ifndef __BIGBUF_H
  20 #define __BIGBUF_H
  21
  22 #include "common.h"
  23
  24 #define MAX_FRAME_SIZE          256 // maximum allowed ISO14443 frame
  25 #define MAX_PARITY_SIZE         ((MAX_FRAME_SIZE + 7) / 8)
  26 #define MAX_MIFARE_FRAME_SIZE   18  // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC
  27 #define MAX_MIFARE_PARITY_SIZE  3   // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these
  28 #define CARD_MEMORY_SIZE        4096
  29 // For now we're storing FM11RF08S nonces in the upper 1k of CARD_MEMORY_SIZE
  30 // but we might have to allocate extra space if one day we've to support sth like a FM11RF32S
  31 #define CARD_MEMORY_RF08S_OFFSET 1024
  32
  33 //#define DMA_BUFFER_SIZE         (512 + 256)
  34 #define DMA_BUFFER_SIZE         512
  35
  36 // 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits
  37 #define TOSEND_BUFFER_SIZE (9 * MAX_FRAME_SIZE + 1 + 1 + 2)
  38
  39 uint8_t *BigBuf_get_addr(void);
  40 uint32_t BigBuf_get_size(void);
  41 uint8_t *BigBuf_get_EM_addr(void);
  42 uint16_t BigBuf_max_traceLen(void);
  43 uint32_t BigBuf_get_hi(void);
  44
  45 void BigBuf_initialize(void);
  46 void BigBuf_Clear(void);
  47 void BigBuf_Clear_ext(bool verbose);
  48 void BigBuf_Clear_keep_EM(void);
  49 void BigBuf_Clear_EM(void);
  50 uint8_t *BigBuf_malloc(uint16_t);
  51 uint8_t *BigBuf_calloc(uint16_t);
  52 void BigBuf_free(void);
  53 void BigBuf_free_keep_EM(void);
  54 void BigBuf_print_status(void);
  55 uint32_t BigBuf_get_traceLen(void);
  56 void clear_trace(void);
  57 void set_tracing(bool enable);
  58 void set_tracelen(uint32_t value);
  59 bool get_tracing(void);
  60
  61 bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, const uint8_t *parity, bool reader2tag);
  62 bool RAMFUNC LogTraceBits(const uint8_t *btBytes, uint16_t bitLen, uint32_t timestamp_start, uint32_t timestamp_end, bool reader2tag);
  63 bool LogTrace_ISO15693(const uint8_t *bytes, uint16_t len, uint32_t ts_start, uint32_t ts_end, const uint8_t *parity, bool reader2tag);
  64
  65 int emlSet(const uint8_t *data, uint32_t offset, uint32_t length);
  66 int emlGet(uint8_t *out, uint32_t offset, uint32_t length);
  67
  68 typedef struct {
  69     int max;
  70     int bit;
  71     uint8_t *buf;
  72 } tosend_t;
  73
  74 tosend_t *get_tosend(void);
  75 void tosend_reset(void);
  76 void tosend_stuffbit(int b);
  77
  78 typedef struct {
  79     uint16_t size;
  80     uint8_t *buf;
  81 } dmabuf8_t;
  82
  83 typedef struct {
  84     uint16_t size;
  85     uint16_t *buf;
  86 } dmabuf16_t;
  87
  88 dmabuf8_t *get_dma8(void);
  89 dmabuf16_t *get_dma16(void);
  90 #endif /* __BIGBUF_H */