finish FSK graph index changes

armsrc/lfops.c

@@ -769,6 +769,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 	size_t size; 
 	uint32_t hi2=0, hi=0, lo=0;
 	int idx=0;
+	int dummyIdx = 0;
 	// Configure to go in 125Khz listen mode
 	LFSetupFPGAForADC(95, true);
 
@@ -784,7 +785,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		// FSK demodulator
 		//size = sizeOfBigBuff;  //variable size will change after demod so re initialize it before use
 		size = 50*128*2; //big enough to catch 2 sequences of largest format
-		idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo);
+		idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo, &dummyIdx);
 		
 		if (idx>0 && lo>0 && (size==96 || size==192)){
 			// go over previously decoded manchester data and decode into usable tag ID
@@ -861,7 +862,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
 	uint8_t *dest = BigBuf_get_addr();
 	size_t size; 
-	int idx=0;
+	int idx=0, dummyIdx=0;
 	//clear read buffer
 	BigBuf_Clear_keep_EM();
 	// Configure to go in 125Khz listen mode
@@ -875,7 +876,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		DoAcquisition_default(-1,true);
 		// FSK demodulator
 		size = 50*128*2; //big enough to catch 2 sequences of largest format
-		idx = AWIDdemodFSK(dest, &size);
+		idx = AWIDdemodFSK(dest, &size, &dummyIdx);
 		
 		if (idx<=0 || size!=96) continue;
 		// Index map
@@ -1017,6 +1018,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 	uint8_t version=0;
 	uint8_t facilitycode=0;
 	uint16_t number=0;
+	int dummyIdx=0;
 	//clear read buffer
 	BigBuf_Clear_keep_EM();
 	// Configure to go in 125Khz listen mode
@@ -1028,7 +1030,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		DoAcquisition_default(-1,true);
 		//fskdemod and get start index
 		WDT_HIT();
-		idx = IOdemodFSK(dest, BigBuf_max_traceLen());
+		idx = IOdemodFSK(dest, BigBuf_max_traceLen(), &dummyIdx);
 		if (idx<0) continue;
 		//valid tag found
 

client/cmddata.c

@@ -68,15 +68,21 @@ void save_restoreDB(uint8_t saveOpt)
 	static uint8_t SavedDB[MAX_DEMOD_BUF_LEN];
 	static size_t SavedDBlen;
 	static bool DB_Saved = false;
+	static int savedDemodStartIdx = 0;
+	static int savedDemodClock = 0;
 
 	if (saveOpt==1) { //save
 
 		memcpy(SavedDB, DemodBuffer, sizeof(DemodBuffer));
 		SavedDBlen = DemodBufferLen;
 		DB_Saved=true;
+		savedDemodStartIdx = g_DemodStartIdx;
+		savedDemodClock = g_DemodClock;
 	} else if (DB_Saved) { //restore
 		memcpy(DemodBuffer, SavedDB, sizeof(DemodBuffer));
 		DemodBufferLen = SavedDBlen;
+		g_DemodClock = savedDemodClock;
+		g_DemodStartIdx = savedDemodStartIdx;
 	}
 	return;
 }
@@ -803,7 +809,7 @@ int FSKrawDemod(const char *Cmd, bool verbose)
 		if (!rfLen) rfLen = 50;
 	}
 	int startIdx = 0;
-	int size = fskdemod_ext(BitStream, BitLen, rfLen, invert, fchigh, fclow, &startIdx);
+	int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow, &startIdx);
 	if (size > 0) {
 		setDemodBuf(BitStream,size,0);
 		setClockGrid(rfLen, startIdx);

client/cmdlfawid.c

@@ -88,8 +88,9 @@ int CmdFSKdemodAWID(const char *Cmd)
 	size_t size = getFromGraphBuf(BitStream);
 	if (size==0) return 0;
 
+	int waveIdx = 0;
 	//get binary from fsk wave
-	int idx = AWIDdemodFSK(BitStream, &size);
+	int idx = AWIDdemodFSK(BitStream, &size, &waveIdx);
 	if (idx<=0){
 		if (g_debugMode){
 			if (idx == -1)
@@ -126,7 +127,7 @@ int CmdFSKdemodAWID(const char *Cmd)
 	uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
 	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
 	setDemodBuf(BitStream,96,idx);
-	setClockGrid(g_DemodClock, g_DemodStartIdx + (idx*g_DemodClock));
+	setClockGrid(50, waveIdx + (idx*50));
 
 	size = removeParity(BitStream, idx+8, 4, 1, 88);
 	if (size != 66){

client/cmdlfhid.c

@@ -32,7 +32,8 @@ int CmdFSKdemodHID(const char *Cmd)
   size_t BitLen = getFromGraphBuf(BitStream);
   if (BitLen==0) return 0;
   //get binary from fsk wave
-  int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+  int waveIdx = 0;
+  int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo, &waveIdx);
   if (idx<0){
     if (g_debugMode){
       if (idx==-1){
@@ -99,7 +100,7 @@ int CmdFSKdemodHID(const char *Cmd)
       (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);
   }
   setDemodBuf(BitStream,BitLen,idx);
-  setClockGrid(g_DemodClock, g_DemodStartIdx + (idx*g_DemodClock));
+  setClockGrid(50, waveIdx + (idx*50));
   if (g_debugMode){ 
     PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
     printDemodBuff();

client/cmdlfio.c

@@ -53,8 +53,9 @@ int CmdFSKdemodIO(const char *Cmd)
   size_t BitLen = getFromGraphBuf(BitStream);
   if (BitLen==0) return 0;
 
+  int waveIdx = 0;
   //get binary from fsk wave
-  idx = IOdemodFSK(BitStream,BitLen);
+  idx = IOdemodFSK(BitStream,BitLen, &waveIdx);
   if (idx<0){
     if (g_debugMode){
       if (idx==-1){
@@ -119,7 +120,7 @@ int CmdFSKdemodIO(const char *Cmd)
 
   PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
   setDemodBuf(BitStream,64,idx);
-  setClockGrid(g_DemodClock, g_DemodStartIdx + (idx*g_DemodClock));
+  setClockGrid(64, waveIdx + (idx*64));
 
   if (g_debugMode){
     PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);

client/cmdlfparadox.c

@@ -32,8 +32,9 @@ int CmdFSKdemodParadox(const char *Cmd)
 	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
 	size_t BitLen = getFromGraphBuf(BitStream);
 	if (BitLen==0) return 0;
+	int waveIdx=0;
 	//get binary from fsk wave
-	int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+	int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo,&waveIdx);
 	if (idx<0){
 		if (g_debugMode){
 			if (idx==-1){
@@ -63,7 +64,7 @@ int CmdFSKdemodParadox(const char *Cmd)
 	PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
 		hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
 	setDemodBuf(BitStream,BitLen,idx);
-	setClockGrid(g_DemodClock, g_DemodStartIdx + (idx*g_DemodClock));
+	setClockGrid(50, waveIdx + (idx*50));
 	if (g_debugMode){ 
 		PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
 		printDemodBuff();

client/cmdlfpyramid.c

@@ -96,8 +96,9 @@ int CmdFSKdemodPyramid(const char *Cmd)
 	size_t size = getFromGraphBuf(BitStream);
 	if (size==0) return 0;
 
+	int waveIdx=0;
 	//get binary from fsk wave
-	int idx = PyramiddemodFSK(BitStream, &size);
+	int idx = PyramiddemodFSK(BitStream, &size, &waveIdx);
 	if (idx < 0){
 		if (g_debugMode){
 			if (idx == -5)
@@ -152,7 +153,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
 	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
 	uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
 	setDemodBuf(BitStream,128,idx);
-	setClockGrid(g_DemodClock, g_DemodStartIdx + (idx*g_DemodClock));
+	setClockGrid(50, waveIdx + (idx*50));
 
 	size = removeParity(BitStream, idx+8, 8, 1, 120);
 	if (size != 105){

common/lfdemod.c

@@ -1489,7 +1489,7 @@ size_t aggregate_bits(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert,
 
 //by marshmellow  (from holiman's base)
 // full fsk demod from GraphBuffer wave to decoded 1s and 0s (no mandemod)
-int fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx) {
+int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx) {
 	if (justNoise(dest, size)) return 0;
 	// FSK demodulator
 	size = fsk_wave_demod(dest, size, fchigh, fclow, startIdx);
@@ -1497,11 +1497,6 @@ int fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint
 	return size;
 }
 
-int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow) {
-	int startIdx=0;
-	return fskdemod_ext(dest, size, rfLen, invert, fchigh, fclow, &startIdx);
-}
-
 // by marshmellow
 // convert psk1 demod to psk2 demod
 // only transition waves are 1s
@@ -1628,12 +1623,12 @@ int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert) {
 
 // by marshmellow
 // FSK Demod then try to locate an AWID ID
-int AWIDdemodFSK(uint8_t *dest, size_t *size) {
+int AWIDdemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx) {
 	//make sure buffer has enough data
 	if (*size < 96*50) return -1;
 
 	// FSK demodulator
-	*size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
+	*size = fskdemod(dest, *size, 50, 1, 10, 8, waveStartIdx);  // fsk2a RF/50 
 	if (*size < 96) return -3;  //did we get a good demod?
 
 	uint8_t preamble[] = {0,0,0,0,0,0,0,1};
@@ -1715,10 +1710,10 @@ int gProxII_Demod(uint8_t BitStream[], size_t *size) {
 }
 
 // loop to get raw HID waveform then FSK demodulate the TAG ID from it
-int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {
+int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx) {
 	size_t numStart=0, size2=*size, startIdx=0; 
-	// FSK demodulator
+	// FSK demodulator  fsk2a so invert and fc/10/8
-	*size = fskdemod(dest, size2,50,1,10,8); //fsk2a
+	*size = fskdemod(dest, size2, 50, 1, 10, 8, waveStartIdx);
 	if (*size < 96*2) return -2;
 	// 00011101 bit pattern represent start of frame, 01 pattern represents a 0 and 10 represents a 1
 	uint8_t preamble[] = {0,0,0,1,1,1,0,1};
@@ -1743,11 +1738,11 @@ int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32
 	return (int)startIdx;
 }
 
-int IOdemodFSK(uint8_t *dest, size_t size) {
+int IOdemodFSK(uint8_t *dest, size_t size, int *waveStartIdx) {
 	//make sure buffer has data
 	if (size < 66*64) return -2;
-	// FSK demodulator
+	// FSK demodulator  RF/64, fsk2a so invert, and fc/10/8
-	size = fskdemod(dest, size, 64, 1, 10, 8);  // FSK2a RF/64 
+	size = fskdemod(dest, size, 64, 1, 10, 8, waveStartIdx); 
 	if (size < 65) return -3;  //did we get a good demod?
 	//Index map
 	//0           10          20          30          40          50          60
@@ -1792,10 +1787,10 @@ int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert) {
 }
 
 // loop to get raw paradox waveform then FSK demodulate the TAG ID from it
-int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo) {
+int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx) {
 	size_t numStart=0, size2=*size, startIdx=0;
 	// FSK demodulator
-	*size = fskdemod(dest, size2,50,1,10,8); //fsk2a
+	*size = fskdemod(dest, size2,50,1,10,8,waveStartIdx); //fsk2a
 	if (*size < 96) return -2;
 
 	// 00001111 bit pattern represent start of frame, 01 pattern represents a 0 and 10 represents a 1
@@ -1835,12 +1830,12 @@ int PrescoDemod(uint8_t *dest, size_t *size) {
 
 // by marshmellow
 // FSK Demod then try to locate a Farpointe Data (pyramid) ID
-int PyramiddemodFSK(uint8_t *dest, size_t *size) {
+int PyramiddemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx) {
 	//make sure buffer has data
 	if (*size < 128*50) return -5;
 
 	// FSK demodulator
-	*size = fskdemod(dest, *size, 50, 1, 10, 8);  // fsk2a RF/50 
+	*size = fskdemod(dest, *size, 50, 1, 10, 8, waveStartIdx);  // fsk2a RF/50 
 	if (*size < 128) return -2;  //did we get a good demod?
 
 	uint8_t preamble[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};

common/lfdemod.h

@@ -32,8 +32,7 @@ extern int      DetectNRZClock(uint8_t dest[], size_t size, int clock, size_t *c
 extern int      DetectPSKClock(uint8_t dest[], size_t size, int clock, size_t *firstPhaseShift, uint8_t *curPhase, uint8_t *fc);
 extern int      DetectStrongAskClock(uint8_t dest[], size_t size, int high, int low, int *clock);
 extern bool     DetectST(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststart, size_t *stend);
-extern int      fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
+extern int      fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx);
-extern int      fskdemod_ext(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow, int *startIdx);
 extern int      getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo);
 extern uint32_t manchesterEncode2Bytes(uint16_t datain);
 extern int      ManchesterEncode(uint8_t *BitStream, size_t size);
@@ -49,16 +48,16 @@ extern void     psk1TOpsk2(uint8_t *BitStream, size_t size);
 extern size_t   removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t pType, size_t bLen);
 
 //tag specific
-extern int AWIDdemodFSK(uint8_t *dest, size_t *size);
+extern int AWIDdemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx);
 extern uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_t *hi, uint64_t *lo);
 extern int FDXBdemodBI(uint8_t *dest, size_t *size);
 extern int gProxII_Demod(uint8_t BitStream[], size_t *size);
-extern int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
+extern int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx);
-extern int IOdemodFSK(uint8_t *dest, size_t size);
+extern int IOdemodFSK(uint8_t *dest, size_t size, int *waveStartIdx);
 extern int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
-extern int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
+extern int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo, int *waveStartIdx);
 extern int PrescoDemod(uint8_t *dest, size_t *size);
-extern int PyramiddemodFSK(uint8_t *dest, size_t *size);
+extern int PyramiddemodFSK(uint8_t *dest, size_t *size, int *waveStartIdx);
 extern int VikingDemod_AM(uint8_t *dest, size_t *size);
 extern int Visa2kDemod_AM(uint8_t *dest, size_t *size);