proxmark3/common/lfdemod.h
iceman1001 bd4d1ec74e Fixes: lf simpsk - make sure Carrier input is ok.
fix: 'lf awid sim' - Clk param is used CorreCt
fix: 'lf HID sim' - unified way logging
fix: 'lf indala sim' - adding a draft simulation Command
fix: 'lf io sim'  - unified way logging
fix: 'lf nedap sim' - getting bits is wrong still..
fix: 'lf paradox sim'  - Helptext
lfdemod.C  got some reworked loops,  still some debug messages to be ...
2017-08-10 14:19:57 +02:00

61 lines
4 KiB
C

// Copyright (C) 2014
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Low frequency demod related commands
// marshmellow
// note that many of these demods are not the slickest code and they often rely
// on peaks and clock instead of converting to clean signal.
//
//-----------------------------------------------------------------------------
#ifndef LFDEMOD_H__
#define LFDEMOD_H__
#include <stdint.h> // for uint_32+
#include <stdbool.h> // for bool
#include <string.h> // for strcmp
#include <stdlib.h> // for
#include <stdbool.h> // for bool
#include "parity.h" // for parity test
//generic
extern uint8_t justNoise(uint8_t *bits, size_t size);
extern size_t addParity(uint8_t *BitSource, uint8_t *dest, uint8_t sourceLen, uint8_t pLen, uint8_t pType);
extern int askdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType);
extern int askdemod_ext(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType, int *startIdx);
extern void askAmp(uint8_t *BitStream, size_t size);
extern int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int *offset, int invert);
extern uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
extern uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits);
extern uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
extern int DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
extern uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
extern uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow, int *firstClockEdge);
extern int DetectNRZClock(uint8_t dest[], size_t size, int clock, size_t *clockStartIdx);
extern int DetectPSKClock(uint8_t dest[], size_t size, int clock, size_t *firstPhaseShift, uint8_t *curPhase, uint8_t *fc);
extern int DetectStrongAskClock(uint8_t dest[], size_t size, int high, int low, int *clock);
extern bool DetectST(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststart, size_t *stend);
extern size_t fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx);
extern int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
extern uint32_t manchesterEncode2Bytes(uint16_t datain);
extern int ManchesterEncode(uint8_t *BitStream, size_t size);
extern int manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert, uint8_t *alignPos);
extern int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert, int *startIdx);
extern bool parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
extern bool preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
extern bool preambleSearchEx(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx, bool findone);
extern int pskRawDemod(uint8_t *dest, size_t *size, int *clock, int *invert);
extern int pskRawDemod_ext(uint8_t *dest, size_t *size, int *clock, int *invert, int *startIdx);
extern void psk2TOpsk1(uint8_t *BitStream, size_t size);
extern void psk1TOpsk2(uint8_t *BitStream, size_t size);
extern size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
//tag specific
extern int detectAWID(uint8_t *dest, size_t *size, int *waveStartIdx);
extern int Em410xDecode(uint8_t *dest, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
extern int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx);
extern int detectIdteck(uint8_t *dest, size_t *size);
extern int detectIOProx(uint8_t *dest, size_t *size, int *waveStartIdx);
#endif