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Merge pull request #81 from mdp/fixguard
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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#include <string.h> // for strcmp
19#include <stdlib.h> // for
20
21//generic
22uint8_t justNoise(uint8_t *bits, size_t size);
23size_t addParity(uint8_t *BitSource, uint8_t *dest, uint8_t sourceLen, uint8_t pLen, uint8_t pType);
24int askdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp, uint8_t askType);
25void askAmp(uint8_t *BitStream, size_t size);
26int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
27uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
28uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits);
29uint16_t countFC(uint8_t *BitStream, size_t size, uint8_t fskAdj);
30int DetectASKClock(uint8_t dest[], size_t size, int *clock, int maxErr);
31uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
32uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow);
33int DetectNRZClock(uint8_t dest[], size_t size, int clock);
34int DetectPSKClock(uint8_t dest[], size_t size, int clock);
35int DetectStrongAskClock(uint8_t dest[], size_t size, uint8_t high, uint8_t low);
36bool DetectST(uint8_t buffer[], size_t *size, int *foundclock);
37int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
38int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
39uint32_t manchesterEncode2Bytes(uint16_t datain);
40int ManchesterEncode(uint8_t *BitStream, size_t size);
41int manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert);
42int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert);
43uint8_t parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType);
44uint8_t preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx);
45int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert);
46void psk2TOpsk1(uint8_t *BitStream, size_t size);
47void psk1TOpsk2(uint8_t *BitStream, size_t size);
48size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
49
50//tag specific
51int AWIDdemodFSK(uint8_t *dest, size_t *size);
52int Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
53int FDXBdemodBI(uint8_t *dest, size_t *size);
54int gProxII_Demod(uint8_t BitStream[], size_t *size);
55int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
56int IOdemodFSK(uint8_t *dest, size_t size);
57int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
58int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
59int PyramiddemodFSK(uint8_t *dest, size_t *size);
60int VikingDemod_AM(uint8_t *dest, size_t *size);
61int PrescoDemod(uint8_t *dest, size_t *size);
62int NedapDemod(uint8_t *dest, size_t *size);
63int JablotronDemod(uint8_t *dest, size_t *size);
64int Visa2kDemod_AM(uint8_t *dest, size_t *size);
65int NoralsyDemod_AM(uint8_t *dest, size_t *size);
66int IdteckDemodPSK(uint8_t *dest, size_t *size);
67#endif
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