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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__ | |
6923d3f1 | 16 | #include <stdint.h> // for uint_32+ |
17 | #include <stdbool.h> // for bool | |
eb191de6 | 18 | |
fef74fdc | 19 | //generic |
8b6abef5 | 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); | |
669959bc | 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); |
8b6abef5 | 23 | extern void askAmp(uint8_t *BitStream, size_t size); |
9fe4507c | 24 | extern int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int *offset, int invert); |
8b6abef5 | 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); | |
0f321d63 | 30 | extern uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fcLow, int *firstClockEdge); |
6f36848f | 31 | extern int DetectNRZClock(uint8_t dest[], size_t size, int clock, size_t *clockStartIdx); |
b97311b1 | 32 | extern int DetectPSKClock(uint8_t dest[], size_t size, int clock, size_t *firstPhaseShift, uint8_t *curPhase, uint8_t *fc); |
56de46b4 | 33 | extern int DetectStrongAskClock(uint8_t dest[], size_t size, int high, int low, int *clock); |
0f321d63 | 34 | extern bool DetectST(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststart, size_t *stend); |
1c70664a | 35 | extern int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx); |
8b6abef5 | 36 | extern int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo); |
37 | extern uint32_t manchesterEncode2Bytes(uint16_t datain); | |
38 | extern int ManchesterEncode(uint8_t *BitStream, size_t size); | |
669959bc | 39 | extern int manrawdecode(uint8_t *BitStream, size_t *size, uint8_t invert, uint8_t *alignPos); |
6f36848f | 40 | extern int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert, int *startIdx); |
b97311b1 | 41 | extern bool parityTest(uint32_t bits, uint8_t bitLen, uint8_t pType); |
8b6abef5 | 42 | extern uint8_t preambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx); |
43 | extern bool preambleSearchEx(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t *size, size_t *startIdx, bool findone); | |
44 | extern int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert); | |
669959bc | 45 | extern int pskRawDemod_ext(uint8_t dest[], size_t *size, int *clock, int *invert, int *startIdx); |
8b6abef5 | 46 | extern void psk2TOpsk1(uint8_t *BitStream, size_t size); |
47 | extern void psk1TOpsk2(uint8_t *BitStream, size_t size); | |
48 | extern size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen); | |
fef74fdc | 49 | |
50 | //tag specific | |
1c70664a | 51 | extern int AWIDdemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx); |
8b6abef5 | 52 | extern uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo); |
53 | extern int FDXBdemodBI(uint8_t *dest, size_t *size); | |
54 | extern int gProxII_Demod(uint8_t BitStream[], size_t *size); | |
1c70664a | 55 | extern int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx); |
56 | extern int IOdemodFSK(uint8_t *dest, size_t size, int *waveStartIdx); | |
1dae9811 | 57 | extern int indala64decode(uint8_t *bitStream, size_t *size, uint8_t *invert); |
58 | extern int indala224decode(uint8_t *bitStream, size_t *size, uint8_t *invert); | |
1c70664a | 59 | extern int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx); |
8b6abef5 | 60 | extern int PrescoDemod(uint8_t *dest, size_t *size); |
1c70664a | 61 | extern int PyramiddemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx); |
8b6abef5 | 62 | extern int VikingDemod_AM(uint8_t *dest, size_t *size); |
63 | extern int Visa2kDemod_AM(uint8_t *dest, size_t *size); | |
64 | ||
eb191de6 | 65 | #endif |