git.zerfleddert.de Git - proxmark3-svn/blob - common/lfdemod.h

   1 // Copyright (C) 2014
   2 //
   3 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   4 // at your option, any later version. See the LICENSE.txt file for the text of
   5 // the license.
   6 //-----------------------------------------------------------------------------
   7 // Low frequency demod related commands
   8 // marshmellow
   9 // note that many of these demods are not the slickest code and they often rely
  10 //   on peaks and clock instead of converting to clean signal.
  11 //
  12 //-----------------------------------------------------------------------------
  13
  14 #ifndef LFDEMOD_H__
  15 #define LFDEMOD_H__
  16 #include <stdint.h>  // for uint_32+
  17 #include <stdbool.h> // for bool
  18
  19 //generic
  20 extern size_t   addParity(uint8_t *BitSource, uint8_t *dest, uint8_t sourceLen, uint8_t pLen, uint8_t pType);
  21 extern int      askdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType);
  22 extern int      askdemod_ext(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType, int *startIdx);
  23 extern void     askAmp(uint8_t *BitStream, size_t size);
  24 extern int      BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
  25 extern uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
  26 extern uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits);
  27 extern uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
  28 extern int      DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
  29 extern uint8_t  DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
  30 extern uint8_t  detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow, int *firstClockEdge);
  31 extern int      DetectNRZClock(uint8_t dest[], size_t size, int clock, size_t *clockStartIdx);
  32 extern int      DetectPSKClock(uint8_t dest[], size_t size, int clock, size_t *firstPhaseShift, uint8_t *curPhase, uint8_t *fc);
  33 extern int      DetectStrongAskClock(uint8_t dest[], size_t size, int high, int low, int *clock);
  34 extern bool     DetectST(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststart, size_t *stend);
  35 extern int      fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
  36 extern int      fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx);
  37 extern int      getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
  38 extern uint32_t manchesterEncode2Bytes(uint16_t datain);
  39 extern int      ManchesterEncode(uint8_t *BitStream, size_t size);
  40 extern int      manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert, uint8_t *alignPos);
  41 extern int      nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert, int *startIdx);
  42 extern bool     parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
  43 extern uint8_t  preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
  44 extern bool     preambleSearchEx(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx, bool findone);
  45 extern int      pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert);
  46 extern int      pskRawDemod_ext(uint8_t dest[], size_t *size, int *clock, int *invert, int *startIdx);
  47 extern void     psk2TOpsk1(uint8_t *BitStream, size_t size);
  48 extern void     psk1TOpsk2(uint8_t *BitStream, size_t size);
  49 extern size_t   removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
  50
  51 //tag specific
  52 extern int AWIDdemodFSK(uint8_t *dest, size_t *size);
  53 extern uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
  54 extern int FDXBdemodBI(uint8_t *dest, size_t *size);
  55 extern int gProxII_Demod(uint8_t BitStream[], size_t *size);
  56 extern int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
  57 extern int IOdemodFSK(uint8_t *dest, size_t size);
  58 extern int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
  59 extern int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
  60 extern int PrescoDemod(uint8_t *dest, size_t *size);
  61 extern int PyramiddemodFSK(uint8_t *dest, size_t *size);
  62 extern int VikingDemod_AM(uint8_t *dest, size_t *size);
  63 extern int Visa2kDemod_AM(uint8_t *dest, size_t *size);
  64
  65 #endif