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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
eb191de6 18
fef74fdc 19//generic
a126332a 20size_t addParity(uint8_t *BitSource, uint8_t *dest, uint8_t sourceLen, uint8_t pLen, uint8_t pType);
fef74fdc 21int askdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType);
22int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
23uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
ad6219fc 24uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits);
fef74fdc 25uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
26int DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
27uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
28uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow);
29int DetectNRZClock(uint8_t dest[], size_t size, int clock);
30int DetectPSKClock(uint8_t dest[], size_t size, int clock);
31int DetectStrongAskClock(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
05164399 32bool DetectST(uint8_t buffer[], size_t *size, int *foundclock);
fef74fdc 33int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
34int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
1d0ccbe0 35uint32_t manchesterEncode2Bytes(uint16_t datain);
fef74fdc 36int ManchesterEncode(uint8_t *BitStream, size_t size);
37int manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert);
6426f6ba 38int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert);
fef74fdc 39uint8_t parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
40uint8_t preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
41int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert);
42void psk2TOpsk1(uint8_t *BitStream, size_t size);
43void psk1TOpsk2(uint8_t *BitStream, size_t size);
44size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
45
46//tag specific
47int AWIDdemodFSK(uint8_t *dest, size_t *size);
94422fa2 48uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
49int FDXBdemodBI(uint8_t *dest, size_t *size);
11081e04 50int gProxII_Demod(uint8_t BitStream[], size_t *size);
ec75f5c1 51int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
eb191de6 52int IOdemodFSK(uint8_t *dest, size_t size);
ba1a299c 53int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
a1d17964 54int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
70459879 55int PyramiddemodFSK(uint8_t *dest, size_t *size);
56int VikingDemod_AM(uint8_t *dest, size_t *size);
4469412e 57int PrescoDemod(uint8_t *dest, size_t *size);
eb191de6 58#endif
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