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