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ba1a299c 1// Copyright (C) 2014
eb191de6 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//-----------------------------------------------------------------------------
1e090a61 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//
eb191de6 12//-----------------------------------------------------------------------------
13
14#ifndef LFDEMOD_H__
15#define LFDEMOD_H__
38e41917 16#include <stdint.h> // for uint_32+
17#include <stdbool.h> // for bool
e977fb0d 18#include <string.h> // for strcmp
19#include <stdlib.h> // for
eb191de6 20
fef74fdc 21//generic
9833360b 22void SetGraphClock( int clock, int startidx);
2dcf60f3 23uint8_t justNoise(uint8_t *bits, size_t size);
a126332a 24size_t addParity(uint8_t *BitSource, uint8_t *dest, uint8_t sourceLen, uint8_t pLen, uint8_t pType);
fef74fdc 25int askdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType);
a38f5a07 26void askAmp(uint8_t *BitStream, size_t size);
fef74fdc 27int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
28uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
ad6219fc 29uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits);
fef74fdc 30uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
31int DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
32uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
33uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow);
9833360b 34uint8_t detectFSKClk_ext(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow, int *firstClockEdge);
fef74fdc 35int DetectNRZClock(uint8_t dest[], size_t size, int clock);
9833360b 36int DetectNRZClock_ext(uint8_t dest[], size_t size, int clock, int *clockStartIdx);
fef74fdc 37int DetectPSKClock(uint8_t dest[], size_t size, int clock);
9833360b 38int DetectPSKClock_ext(uint8_t dest[], size_t size, int clock, int *firstPhaseShift);
39int DetectStrongAskClock(uint8_t dest[], size_t size, uint8_t high, uint8_t low, int *clock);
05164399 40bool DetectST(uint8_t buffer[], size_t *size, int *foundclock);
a9eeb576 41bool DetectST_ext(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststart, size_t *stend);
fef74fdc 42int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
43int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
1d0ccbe0 44uint32_t manchesterEncode2Bytes(uint16_t datain);
fef74fdc 45int ManchesterEncode(uint8_t *BitStream, size_t size);
46int manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert);
6426f6ba 47int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert);
fef74fdc 48uint8_t parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
8ad1e731 49bool preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
50bool preambleSearchEx(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx, bool findone);
fef74fdc 51int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert);
52void psk2TOpsk1(uint8_t *BitStream, size_t size);
53void psk1TOpsk2(uint8_t *BitStream, size_t size);
54size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
55
56//tag specific
57int AWIDdemodFSK(uint8_t *dest, size_t *size);
a8fd088d 58int Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
94422fa2 59int FDXBdemodBI(uint8_t *dest, size_t *size);
11081e04 60int gProxII_Demod(uint8_t BitStream[], size_t *size);
ec75f5c1 61int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
eb191de6 62int IOdemodFSK(uint8_t *dest, size_t size);
ba1a299c 63int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
a1d17964 64int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
70459879 65int PyramiddemodFSK(uint8_t *dest, size_t *size);
66int VikingDemod_AM(uint8_t *dest, size_t *size);
4469412e 67int PrescoDemod(uint8_t *dest, size_t *size);
56bbb25a 68int NedapDemod(uint8_t *dest, size_t *size);
6c283951 69int JablotronDemod(uint8_t *dest, size_t *size);
5daad826 70int Visa2kDemod_AM(uint8_t *dest, size_t *size);
207fc33a 71int NoralsyDemod_AM(uint8_t *dest, size_t *size);
3acac886 72int IdteckDemodPSK(uint8_t *dest, size_t *size);
eb191de6 73#endif
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