Merge ac3ba7ee69 into 07c808038c

client/cmddata.c

@@ -870,8 +870,12 @@ int PSKnrzDemod(const char *Cmd){
 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
 int CmdIndalaDecode(const char *Cmd)
 {
+	int ans;
+	if (strlen(Cmd)>0)
+		ans=PSKnrzDemod(Cmd);
+	else
+		ans=PSKnrzDemod("32");
 
-	int ans=PSKnrzDemod(Cmd);
 	if (ans < 0){
 		PrintAndLog("Error1: %d",ans);
 		return 0;

client/cmdlf.c

@@ -559,18 +559,32 @@ int CmdLFfind(const char *Cmd)
     ans=CmdSamples("20000");
   }
   if (GraphTraceLen<1000) return 0;
+  PrintAndLog("NOTE: some demods output possible binary\n  if it finds something that looks like a tag");
   PrintAndLog("Checking for known tags:");
+
   ans=Cmdaskmandemod("");
-  if (ans>0) return 1;
+  if (ans>0) {
+    PrintAndLog("Valid EM410x ID Found!");
+    return 1;
+  }
   ans=CmdFSKdemodHID("");
-  if (ans>0) return 1;
+  if (ans>0) {
+    PrintAndLog("Valid HID Prox ID Found!");
+    return 1;
+  }
   ans=CmdFSKdemodIO("");
-  if (ans>0) return 1;
+  if (ans>0) {
+    PrintAndLog("Valid IO Prox ID Found!");
+    return 1;
+  }
   //add psk and indala
-  ans=CmdIndalaDemod("");
+  ans=CmdIndalaDecode("");
-  if (ans>0) return 1;
+  if (ans>0) {
-  ans=CmdIndalaDemod("224");
+    PrintAndLog("Valid Indala ID Found!");
-  if (ans>0) return 1;
+    return 1;
+  }
+ // ans=CmdIndalaDemod("224");
+ // if (ans>0) return 1;
   PrintAndLog("No Known Tags Found!\n");
   return 0;
 }

common/lfdemod.c

@@ -300,7 +300,7 @@ int askrawdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert)
 		else if (BinStream[i] < low)
 			low = BinStream[i];
 	}
-	if ((high < 158)){  //throw away static
+	if ((high < 134)){  //throw away static  high has to be more than 6 on graph. noise <= -10 here
 		//   PrintAndLog("no data found");
 		return -2;
 	}
@@ -407,21 +407,11 @@ size_t fsk_wave_demod(uint8_t * dest, size_t size, uint8_t fchigh, uint8_t fclow
 {
 	uint32_t last_transition = 0;
 	uint32_t idx = 1;
-	uint32_t maxVal=0;
+	//uint32_t maxVal=0;
 	if (fchigh==0) fchigh=10;
 	if (fclow==0) fclow=8;
-	// we do care about the actual theshold value as sometimes near the center of the
+	//set the threshold close to 0 (graph) to avoid static
-	// wave we may get static that changes direction of wave for one value
+	uint8_t threshold_value = 134; //(uint8_t)(((maxVal-128)*.75)+128);
-	// if our value is too low it might affect the read.  and if our tag or
-	// antenna is weak a setting too high might not see anything. [marshmellow]
-	if (size<100) return 0;
-	for(idx=1; idx<100; idx++){
-		if(maxVal<dest[idx]) maxVal = dest[idx];
-	}
-	// set close to the top of the wave threshold with 25% margin for error
-	// less likely to get a false transition up there.
-	// (but have to be careful not to go too high and miss some short waves)
-	uint8_t threshold_value = (uint8_t)(((maxVal-128)*.75)+128);
 
 	// sync to first lo-hi transition, and threshold
 
@@ -573,7 +563,7 @@ uint32_t bytebits_to_byte(uint8_t* src, size_t numbits)
 
 int IOdemodFSK(uint8_t *dest, size_t size)
 {
-	static const uint8_t THRESHOLD = 140;
+	static const uint8_t THRESHOLD = 134;
 	uint32_t idx=0;
 	//make sure buffer has data
 	if (size < 66) return -1;
@@ -707,8 +697,8 @@ int DetectpskNRZClock(uint8_t dest[], size_t size, int clock)
 			low = dest[i];
 		}
 	}
-	peak=(int)(((peak-128)*.90)+128);
+	peak=(int)(((peak-128)*.75)+128);
-	low= (int)(((low-128)*.90)+128);
+	low= (int)(((low-128)*.75)+128);
 	//PrintAndLog("DEBUG: peak: %d, low: %d",peak,low);
 	int ii;
 	uint8_t clkCnt;
@@ -720,7 +710,7 @@ int DetectpskNRZClock(uint8_t dest[], size_t size, int clock)
 	//test each valid clock from smallest to greatest to see which lines up
 	for(clkCnt=0; clkCnt < 6; ++clkCnt){
 		if (clk[clkCnt] == 32){
-			tol=0;
+			tol=1;
 		}else{
 			tol=0;
 		}