clean up some comments

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index be6e35d58f49b0afdc4408835df6ebc22afe3c05..9ed228a440948a1984e66712d9b36edfff937e6a 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -11,8 +11,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

-#include <inttypes.h>
-

 #include <limits.h>
 #include "proxmark3.h"
 #include "data.h"
 #include <limits.h>
 #include "proxmark3.h"
 #include "data.h"


@@ -22,9 +20,65 @@
 #include "util.h"
 #include "cmdmain.h"
 #include "cmddata.h"
 #include "util.h"
 #include "cmdmain.h"
 #include "cmddata.h"

-
+#include "lfdemod.h"
+uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
+uint8_t g_debugMode;
+int DemodBufferLen;

 static int CmdHelp(const char *Cmd);
 
 static int CmdHelp(const char *Cmd);
 

+//set the demod buffer with given array of binary (one bit per byte)
+//by marshmellow
+void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
+{
+       size_t i = 0;
+       for (; i < size; i++){
+               DemodBuffer[i]=buff[startIdx++];
+       }
+       DemodBufferLen=size;
+       return;
+}
+
+int CmdSetDebugMode(const char *Cmd)
+{
+  int demod=0;
+  sscanf(Cmd, "%i", &demod);
+  g_debugMode=(uint8_t)demod;
+  return 1;
+}
+
+//by marshmellow
+void printDemodBuff()
+{
+       uint32_t i = 0;
+       int bitLen = DemodBufferLen;
+       if (bitLen<16) {
+               PrintAndLog("no bits found in demod buffer");
+               return;
+       }
+       if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
+       for (i = 0; i <= (bitLen-16); i+=16) {
+               PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
+                       DemodBuffer[i],
+                       DemodBuffer[i+1],
+                       DemodBuffer[i+2],
+                       DemodBuffer[i+3],
+                       DemodBuffer[i+4],
+                       DemodBuffer[i+5],
+                       DemodBuffer[i+6],
+                       DemodBuffer[i+7],
+                       DemodBuffer[i+8],
+                       DemodBuffer[i+9],
+                       DemodBuffer[i+10],
+                       DemodBuffer[i+11],
+                       DemodBuffer[i+12],
+                       DemodBuffer[i+13],
+                       DemodBuffer[i+14],
+                       DemodBuffer[i+15]);
+       }
+       return;
+}
+
+

 int CmdAmp(const char *Cmd)
 {
   int i, rising, falling;
 int CmdAmp(const char *Cmd)
 {
   int i, rising, falling;


@@ -82,7 +136,7 @@ int Cmdaskdemod(const char *Cmd)
   sscanf(Cmd, "%i", &c);
 
   /* Detect high and lows and clock */
   sscanf(Cmd, "%i", &c);
 
   /* Detect high and lows and clock */

-  // (AL - clock???) 
+       // (AL - clock???)

   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)
   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)


@@ -90,6 +144,8 @@ int Cmdaskdemod(const char *Cmd)
     else if (GraphBuffer[i] < low)
       low = GraphBuffer[i];
   }
     else if (GraphBuffer[i] < low)
       low = GraphBuffer[i];
   }

+  high=abs(high*.75);
+  low=abs(low*.75);

   if (c != 0 && c != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   if (c != 0 && c != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;


@@ -123,39 +179,16 @@ int Cmdaskdemod(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-void printBitStream(int BitStream[], uint32_t bitLen){
-  uint32_t i = 0;
-  if (bitLen<16) return;
-  if (bitLen>512) bitLen=512;
-   for (i = 0; i < (bitLen-16); i+=16) {
-    PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
-      BitStream[i],
-      BitStream[i+1],
-      BitStream[i+2],
-      BitStream[i+3],
-      BitStream[i+4],
-      BitStream[i+5],
-      BitStream[i+6],
-      BitStream[i+7],
-      BitStream[i+8],
-      BitStream[i+9],
-      BitStream[i+10],
-      BitStream[i+11],
-      BitStream[i+12],
-      BitStream[i+13],
-      BitStream[i+14],
-      BitStream[i+15]);
-  }
-  return; 
-}
-void printBitStream2(uint8_t BitStream[], uint32_t bitLen){
+//by marshmellow
+void printBitStream(uint8_t BitStream[], uint32_t bitLen)
+{

   uint32_t i = 0;
   if (bitLen<16) {
     PrintAndLog("Too few bits found: %d",bitLen);
     return;
   }
   if (bitLen>512) bitLen=512;
   uint32_t i = 0;
   if (bitLen<16) {
     PrintAndLog("Too few bits found: %d",bitLen);
     return;
   }
   if (bitLen>512) bitLen=512;

-   for (i = 0; i < (bitLen-16); i+=16) {
+   for (i = 0; i <= (bitLen-16); i+=16) {

     PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
       BitStream[i],
       BitStream[i+1],
     PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
       BitStream[i],
       BitStream[i+1],


@@ -174,224 +207,227 @@ void printBitStream2(uint8_t BitStream[], uint32_t bitLen){
       BitStream[i+14],
       BitStream[i+15]);
   }
       BitStream[i+14],
       BitStream[i+15]);
   }

-  return; 
+       return;

 }
 }

-

 //by marshmellow
 //by marshmellow

-//takes 1s and 0s and searches for EM410x format - output EM ID
-int Em410xDecode(const char *Cmd)
+//print EM410x ID in multiple formats
+void printEM410x(uint64_t id)

 {
 {

-  //no arguments needed - built this way in case we want this to be a direct call from "data " cmds in the future
-  //  otherwise could be a void with no arguments
-  //set defaults
-  int high=0, low=0;
-  uint64_t lo=0; //hi=0,
-
-  uint32_t i = 0;
-  uint32_t initLoopMax = 1000;
-  if (initLoopMax>GraphTraceLen) initLoopMax=GraphTraceLen;
-
-  for (;i < initLoopMax; ++i) //1000 samples should be plenty to find high and low values
-  {
-    if (GraphBuffer[i] > high)
-      high = GraphBuffer[i];
-    else if (GraphBuffer[i] < low)
-      low = GraphBuffer[i];
-  }
-  if (((high !=1)||(low !=0))){  //allow only 1s and 0s 
-    PrintAndLog("no data found"); 
-    return 0;
-  }
-  uint8_t parityTest=0;
-   // 111111111 bit pattern represent start of frame
-  int frame_marker_mask[] = {1,1,1,1,1,1,1,1,1};
-  uint32_t idx = 0;
-  uint32_t ii=0;
-  uint8_t resetCnt = 0;
-  while( (idx + 64) < GraphTraceLen) {
-restart:
-    // search for a start of frame marker
-    if ( memcmp(GraphBuffer+idx, frame_marker_mask, sizeof(frame_marker_mask)) == 0)
-    { // frame marker found
-      idx+=9;//sizeof(frame_marker_mask);
-      for (i=0; i<10;i++){
-        for(ii=0; ii<5; ++ii){
-          parityTest += GraphBuffer[(i*5)+ii+idx];        
-        }
-        if (parityTest== ((parityTest>>1)<<1)){
-          parityTest=0;
-          for (ii=0; ii<4;++ii){
-            //hi = (hi<<1)|(lo>>31);
-            lo=(lo<<1LL)|(GraphBuffer[(i*5)+ii+idx]);
-          }
-          //PrintAndLog("DEBUG: EM parity passed parity val: %d, i:%d, ii:%d,idx:%d, Buffer: %d%d%d%d%d,lo: %d",parityTest,i,ii,idx,GraphBuffer[idx+ii+(i*5)-5],GraphBuffer[idx+ii+(i*5)-4],GraphBuffer[idx+ii+(i*5)-3],GraphBuffer[idx+ii+(i*5)-2],GraphBuffer[idx+ii+(i*5)-1],lo);          
-        }else {//parity failed
-          //PrintAndLog("DEBUG: EM parity failed parity val: %d, i:%d, ii:%d,idx:%d, Buffer: %d%d%d%d%d",parityTest,i,ii,idx,GraphBuffer[idx+ii+(i*5)-5],GraphBuffer[idx+ii+(i*5)-4],GraphBuffer[idx+ii+(i*5)-3],GraphBuffer[idx+ii+(i*5)-2],GraphBuffer[idx+ii+(i*5)-1]);
-          parityTest=0;
-          idx-=8;
-          if (resetCnt>5)return 0;
-          resetCnt++;
-          goto restart;//continue;
-        }
-      }
-      //skip last 5 bit parity test for simplicity.
-
-      //get Unique ID
+  if (id !=0){

       uint64_t iii=1;
       uint64_t iii=1;

-      uint64_t id2lo=0; //id2hi=0,
-      //for (i=0;i<8;i++){ //for uint32 instead of uint64
-      //  id2hi=(id2hi<<1)|((hi & (iii<<(i)))>>i);
-     //}
+      uint64_t id2lo=0;
+      uint32_t ii=0;
+      uint32_t i=0;

       for (ii=5; ii>0;ii--){
         for (i=0;i<8;i++){
       for (ii=5; ii>0;ii--){
         for (i=0;i<8;i++){

-          id2lo=(id2lo<<1LL)|((lo & (iii<<(i+((ii-1)*8))))>>(i+((ii-1)*8)));
+                                       id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));

         }
       }
       //output em id
         }
       }
       //output em id

-      PrintAndLog("EM TAG ID    : %010llx", lo);
-      PrintAndLog("Unique TAG ID: %010llx",  id2lo); //id2hi,
-      PrintAndLog("DEZ 8        : %08lld",lo & 0xFFFFFF);
-      PrintAndLog("DEZ 10       : %010lld",lo & 0xFFFFFF);
-      PrintAndLog("DEZ 5.5      : %05lld.%05lld",(lo>>16LL) & 0xFFFF,(lo & 0xFFFF));
-      PrintAndLog("DEZ 3.5A     : %03lld.%05lld",(lo>>32ll),(lo & 0xFFFF));
-      PrintAndLog("DEZ 14/IK2   : %014lld",lo);
+      PrintAndLog("EM TAG ID    : %010llx", id);
+      PrintAndLog("Unique TAG ID: %010llx",  id2lo);
+      PrintAndLog("DEZ 8        : %08lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 10       : %010lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 5.5      : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
+      PrintAndLog("DEZ 3.5A     : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
+      PrintAndLog("DEZ 14/IK2   : %014lld",id);

       PrintAndLog("DEZ 15/IK3   : %015lld",id2lo);
       PrintAndLog("DEZ 15/IK3   : %015lld",id2lo);

-      PrintAndLog("Other        : %05lld_%03lld_%08lld",(lo&0xFFFF),((lo>>16LL) & 0xFF),(lo & 0xFFFFFF));
-      return 0;
-    }else{
-      idx++;
+      PrintAndLog("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+               }
+    return;
+}
+
+//by marshmellow
+//take binary from demod buffer and see if we can find an EM410x ID
+int CmdEm410xDecode(const char *Cmd)
+{
+  uint64_t id=0;
+  size_t size = DemodBufferLen, idx=0;
+       id = Em410xDecode(DemodBuffer, &size, &idx);
+  if (id>0){
+    setDemodBuf(DemodBuffer, size, idx);
+    if (g_debugMode){
+      PrintAndLog("DEBUG: Printing demod buffer:");
+      printDemodBuff();

     }
     }

+    printEM410x(id);
+    return 1; 

   }
   return 0;
 }
 
 
 //by marshmellow
   }
   return 0;
 }
 
 
 //by marshmellow

-//takes 2 arguments - clock and invert both as integers 
+//takes 2 arguments - clock and invert both as integers
+//attempts to demodulate ask while decoding manchester

 //prints binary found and saves in graphbuffer for further commands
 int Cmdaskmandemod(const char *Cmd)
 {
 //prints binary found and saves in graphbuffer for further commands
 int Cmdaskmandemod(const char *Cmd)
 {

-  uint32_t i;
-  int invert=0;  //invert default
-  int high = 0, low = 0;
-  int clk=DetectClock(0); //clock default
-  uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
-
-  sscanf(Cmd, "%i %i", &clk, &invert);    
-  if (clk<8) clk =64;
-  if (clk<32) clk=32;
+  int invert=0;
+       int clk=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       sscanf(Cmd, "%i %i", &clk, &invert);

   if (invert != 0 && invert != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }
   if (invert != 0 && invert != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }

-  uint32_t initLoopMax = 1000;
-  if (initLoopMax>GraphTraceLen) initLoopMax=GraphTraceLen;
-  // Detect high and lows 
-  PrintAndLog("Using Clock: %d  and invert=%d",clk,invert);
-  for (i = 0; i < initLoopMax; ++i) //1000 samples should be plenty to find high and low values
-  {
-    if (GraphBuffer[i] > high)
-      high = GraphBuffer[i];
-    else if (GraphBuffer[i] < low)
-      low = GraphBuffer[i];
-  }
-  if ((high < 30) && ((high !=1)||(low !=-1))){  //throw away static - allow 1 and -1 (in case of threshold command first)
-    PrintAndLog("no data found"); 
+
+       size_t BitLen = getFromGraphBuf(BitStream);
+  if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
+  int errCnt=0;
+   errCnt = askmandemod(BitStream, &BitLen,&clk,&invert);
+       if (errCnt<0||BitLen<16){  //if fatal error (or -1)
+               if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);

     return 0;
     return 0;

+       }
+  PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+  //output
+  if (errCnt>0){
+    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);

   }
   }

-  //13% fuzz in case highs and lows aren't clipped [marshmellow]
-  high=(int)(0.75*high);
-  low=(int)(0.75*low);
-
-  //PrintAndLog("DEBUG - valid high: %d - valid low: %d",high,low);
-  int lastBit = 0;  //set first clock check
-  uint32_t bitnum = 0;     //output counter
-  uint8_t tol = 0;  //clock tolerance adjust - waves will be accepted as within the clock if they fall + or - this value + clock from last valid wave
-  if (clk==32)tol=1;    //clock tolerance may not be needed anymore currently set to + or - 1 but could be increased for poor waves or removed entirely 
-  uint32_t iii = 0;
-  uint32_t gLen = GraphTraceLen;
-  if (gLen > 500) gLen=500;
-  uint8_t errCnt =0;
-  uint32_t bestStart = GraphTraceLen;
-  uint32_t bestErrCnt = (GraphTraceLen/1000);
-  //PrintAndLog("DEBUG - lastbit - %d",lastBit);
-  //loop to find first wave that works
-  for (iii=0; iii < gLen; ++iii){
-    if ((GraphBuffer[iii]>=high)||(GraphBuffer[iii]<=low)){
-      lastBit=iii-clk;    
-      //loop through to see if this start location works
-      for (i = iii; i < GraphTraceLen; ++i) {   
-        if ((GraphBuffer[i] >= high) && ((i-lastBit)>(clk-tol))){
-          lastBit+=clk;
-          BitStream[bitnum] =  invert;
-          bitnum++;
-        } else if ((GraphBuffer[i] <= low) && ((i-lastBit)>(clk-tol))){
-          //low found and we are expecting a bar
-          lastBit+=clk;
-          BitStream[bitnum] = 1-invert; 
-          bitnum++;
-        } else {
-          //mid value found or no bar supposed to be here
-          if ((i-lastBit)>(clk+tol)){
-            //should have hit a high or low based on clock!!
-
-             
-            //debug
-            //PrintAndLog("DEBUG - no wave in expected area - location: %d, expected: %d-%d, lastBit: %d - resetting search",i,(lastBit+(clk-((int)(tol)))),(lastBit+(clk+((int)(tol)))),lastBit);
-            if (bitnum > 0){
-              BitStream[bitnum]=77;
-              bitnum++;
-            }
-            
-
-            errCnt++;
-            lastBit+=clk;//skip over until hit too many errors
-            if (errCnt>((GraphTraceLen/1000))){  //allow 1 error for every 1000 samples else start over
-              errCnt=0;
-              bitnum=0;//start over
-              break;
-            }
-          }
-        }
-      }
-      //we got more than 64 good bits and not all errors
-      if ((bitnum > (64+errCnt)) && (errCnt<(GraphTraceLen/1000))) {
-        //possible good read
-        if (errCnt==0) break;  //great read - finish
-        if (bestStart == iii) break;  //if current run == bestErrCnt run (after exhausted testing) then finish 
-        if (errCnt<bestErrCnt){  //set this as new best run
-          bestErrCnt=errCnt;
-          bestStart = iii;
-        }
-      }
-    }
-    if (iii>=gLen){ //exhausted test
-      //if there was a ok test go back to that one and re-run the best run (then dump after that run)
-      if (bestErrCnt < (GraphTraceLen/1000)) iii=bestStart;
+  PrintAndLog("ASK/Manchester decoded bitstream:");
+  // Now output the bitstream to the scrollback by line of 16 bits
+       setDemodBuf(BitStream,BitLen,0);
+       printDemodBuff();
+  uint64_t lo =0;
+  size_t idx=0;
+  lo = Em410xDecode(BitStream, &BitLen, &idx);
+  if (lo>0){
+    //set GraphBuffer for clone or sim command
+    setDemodBuf(BitStream, BitLen, idx);
+    if (g_debugMode){
+      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+      printDemodBuff();

     }
     }

+    PrintAndLog("EM410x pattern found: ");
+    printEM410x(lo);
+    return 1;

   }
   }

-  if (bitnum>16){
-    
-    PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);
-    //move BitStream back to GraphBuffer
-    ClearGraph(0);
-    for (i=0; i < bitnum; ++i){
-      GraphBuffer[i]=BitStream[i];
-    }
-    GraphTraceLen=bitnum;
-    RepaintGraphWindow();
-    //output
-    if (errCnt>0){
-      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
-    }
-    PrintAndLog("ASK decoded bitstream:");
-    // Now output the bitstream to the scrollback by line of 16 bits
-    printBitStream2(BitStream,bitnum);
-    Em410xDecode(Cmd);
-  }  

   return 0;
 }
 
   return 0;
 }
 

+//by marshmellow
+//manchester decode
+//stricktly take 10 and 01 and convert to 0 and 1
+int Cmdmandecoderaw(const char *Cmd)
+{
+  int i =0;
+  int errCnt=0;
+       size_t size=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  int high=0,low=0;
+       for (;i<DemodBufferLen;++i){
+               if (DemodBuffer[i]>high) high=DemodBuffer[i];
+               else if(DemodBuffer[i]<low) low=DemodBuffer[i];
+               BitStream[i]=DemodBuffer[i];
+  }
+  if (high>1 || low <0 ){
+    PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
+    return 0;
+  }
+       size=i;
+       errCnt=manrawdecode(BitStream, &size);
+  if (errCnt>=20){
+    PrintAndLog("Too many errors: %d",errCnt);
+    return 0;
+  }
+  PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
+       printBitStream(BitStream, size);
+  if (errCnt==0){
+               uint64_t id = 0;
+    size_t idx=0;
+               id = Em410xDecode(BitStream, &size, &idx);
+               if (id>0){
+      //need to adjust to set bitstream back to manchester encoded data
+      //setDemodBuf(BitStream, size, idx);
+
+      printEM410x(id);
+    }
+  }
+  return 1;
+}
+
+//by marshmellow
+//biphase decode
+//take 01 or 10 = 0 and 11 or 00 = 1
+//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
+// and "invert" default = 0 if 1 it will invert output
+//  since it is not like manchester and doesn't have an incorrect bit pattern we
+//  cannot determine if our decode is correct or if it should be shifted by one bit
+//  the argument offset allows us to manually shift if the output is incorrect
+//  (better would be to demod and decode at the same time so we can distinguish large
+//    width waves vs small width waves to help the decode positioning) or askbiphdemod
+int CmdBiphaseDecodeRaw(const char *Cmd)
+{
+  int i = 0;
+  int errCnt=0;
+       size_t size=0;
+  int offset=0;
+  int invert=0;
+  int high=0, low=0;
+       sscanf(Cmd, "%i %i", &offset, &invert);
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  //get graphbuffer & high and low
+       for (;i<DemodBufferLen;++i){
+               if(DemodBuffer[i]>high)high=DemodBuffer[i];
+               else if(DemodBuffer[i]<low)low=DemodBuffer[i];
+               BitStream[i]=DemodBuffer[i];
+  }
+  if (high>1 || low <0){
+    PrintAndLog("Error: please raw demod the wave first then decode");
+    return 0;
+  }
+       size=i;
+       errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
+  if (errCnt>=20){
+    PrintAndLog("Too many errors attempting to decode: %d",errCnt);
+    return 0;
+  }
+  PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+       printBitStream(BitStream, size);
+  PrintAndLog("\nif bitstream does not look right try offset=1");
+  return 1;
+}
+
+//by marshmellow
+//takes 2 arguments - clock and invert both as integers
+//attempts to demodulate ask only
+//prints binary found and saves in graphbuffer for further commands
+int Cmdaskrawdemod(const char *Cmd)
+{
+       int invert=0;
+       int clk=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       sscanf(Cmd, "%i %i", &clk, &invert);
+  if (invert != 0 && invert != 1) {
+    PrintAndLog("Invalid argument: %s", Cmd);
+    return 0;
+  }
+       size_t BitLen = getFromGraphBuf(BitStream);
+  int errCnt=0;
+       errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert);
+       if (errCnt==-1||BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
+               PrintAndLog("no data found");
+    if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+    return 0;
+       }
+  PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+  
+  //move BitStream back to DemodBuffer
+       setDemodBuf(BitStream,BitLen,0);
+
+       //output
+  if (errCnt>0){
+    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+  }
+  PrintAndLog("ASK demoded bitstream:");
+  // Now output the bitstream to the scrollback by line of 16 bits
+  printBitStream(BitStream,BitLen);
+
+  return 1;
+}
+

 int CmdAutoCorr(const char *Cmd)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
 int CmdAutoCorr(const char *Cmd)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];


@@ -428,7 +464,7 @@ int CmdBitsamples(const char *Cmd)
 {
   int cnt = 0;
   uint8_t got[12288];
 {
   int cnt = 0;
   uint8_t got[12288];

-  
+

   GetFromBigBuf(got,sizeof(got),0);
   WaitForResponse(CMD_ACK,NULL);
 
   GetFromBigBuf(got,sizeof(got),0);
   WaitForResponse(CMD_ACK,NULL);
 


@@ -501,10 +537,6 @@ int CmdBitstream(const char *Cmd)
       bit ^= 1;
 
     AppendGraph(0, clock, bit);
       bit ^= 1;
 
     AppendGraph(0, clock, bit);

-//    for (j = 0; j < (int)(clock/2); j++)
-//      GraphBuffer[(i * clock) + j] = bit ^ 1;
-//    for (j = (int)(clock/2); j < clock; j++)
-//      GraphBuffer[(i * clock) + j] = bit;

   }
 
   RepaintGraphWindow();
   }
 
   RepaintGraphWindow();


@@ -529,329 +561,229 @@ int CmdDec(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-/* Print our clock rate */
-int CmdDetectClockRate(const char *Cmd)
-{
-  int clock = DetectClock(0);
-  PrintAndLog("Auto-detected clock rate: %d", clock);
-  return 0;
-}
-

 //by marshmellow
 //by marshmellow

-//demod GraphBuffer wave to 0s and 1s for each wave - 0s for short waves 1s for long waves
-size_t fsk_wave_demod(int size)
-{
-  uint32_t last_transition = 0;
-  uint32_t idx = 1;
-  uint32_t maxVal = 0;
-  // we don't care about actual value, only if it's more or less than a
-  // threshold essentially we capture zero crossings for later analysis
-  for(idx=1; idx<size; idx++){
-    if(maxVal<GraphBuffer[idx]) maxVal = GraphBuffer[idx];
-  }
-  // set close to the top of the wave threshold with 13% 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)
-  uint32_t threshold_value = (uint32_t)(maxVal*.87);
-  idx=1;
-  // int threshold_value = 100;
-  
-  // sync to first lo-hi transition, and threshold
-  //  PrintAndLog("FSK init complete size: %d",size);//debug
-  // Need to threshold first sample
-  if(GraphBuffer[0] < threshold_value) GraphBuffer[0] = 0;
-  else GraphBuffer[0] = 1;
-  size_t numBits = 0;
-  // count cycles between consecutive lo-hi transitions, there should be either 8 (fc/8)
-  // or 10 (fc/10) cycles but in practice due to noise etc we may end up with with anywhere
-  // between 7 to 11 cycles so fuzz it by treat anything <9 as 8 and anything else as 10
-  for(idx = 1; idx < size; idx++) {
-    // threshold current value 
-    if (GraphBuffer[idx] < threshold_value) GraphBuffer[idx] = 0;
-    else GraphBuffer[idx] = 1;
-    // Check for 0->1 transition
-    if (GraphBuffer[idx-1] < GraphBuffer[idx]) { // 0 -> 1 transition
-      if (idx-last_transition<6){
-        // do nothing with extra garbage (shouldn't be any) noise tolerance?
-      } else if(idx-last_transition < 9) {
-          GraphBuffer[numBits]=1;             
-          // Other fsk demods reverse this making the short waves 1 and long waves 0
-          // this is really backwards...  smaller waves will typically be 0 and larger 1 [marshmellow]
-          // but will leave as is and invert when needed later
-      } else{
-          GraphBuffer[numBits]=0;
-      } 
-      last_transition = idx;
-      numBits++;
-      //  PrintAndLog("numbits %d",numBits);
-    }
-  }
-  return numBits; //Actually, it returns the number of bytes, but each byte represents a bit: 1 or 0
-}
-uint32_t myround(float f)
+//shift graph zero up or down based on input + or -
+int CmdGraphShiftZero(const char *Cmd)

 {
 {

-  if (f >= UINT_MAX) return UINT_MAX;
-  return (uint32_t) (f + (float)0.5);
-}

 
 

-//by marshmellow (from holiman's base)
-//translate 11111100000 to 10
-size_t aggregate_bits(int size, uint8_t rfLen, uint8_t maxConsequtiveBits, uint8_t invert) //,uint8_t l2h_crossing_value
-{
-  int lastval=GraphBuffer[0];
-  uint32_t idx=0;
-  size_t numBits=0;
-  uint32_t n=1;
-  uint32_t n2=0;
-  for( idx=1; idx < size; idx++) {
-
-    if (GraphBuffer[idx]==lastval) {
-      n++;
-      continue;
-    }
-    // if lastval was 1, we have a 1->0 crossing
-    if ( GraphBuffer[idx-1]==1 ) {
-      n=myround((float)(n+1)/((float)(rfLen)/(float)8)); //-2 noise tolerance
-
-     // n=(n+1) / h2l_crossing_value;    
-                                       //truncating could get us into trouble 
-                                       //now we will try with actual clock (RF/64 or RF/50) variable instead
-                                       //then devide with float casting then truncate after more acurate division
-                                       //and round to nearest int
-                                       //like n = (((float)n)/(float)rfLen/(float)10);
-    } else {// 0->1 crossing
-      n=myround((float)(n+1)/((float)(rfLen-2)/(float)10));  // as int 120/6 = 20 as float 120/(64/10) = 18  (18.75)
-      //n=(n+1) / l2h_crossing_value;
-    }
-    if (n == 0) n = 1; //this should never happen...  should we error if it does?
-
-    if (n < maxConsequtiveBits) // Consecutive  //when the consecutive bits are low - the noise tolerance can be high
-                                                //if it is high then we must be careful how much noise tolerance we allow
-    {
-      if (invert==0){ // do not invert bits 
-        for (n2=0; n2<n; n2++){
-          GraphBuffer[numBits+n2]=GraphBuffer[idx-1];
-        }
-        //memset(GraphBuffer+numBits, GraphBuffer[idx-1] , n);
-      }else{        // invert bits
-        for (n2=0; n2<n; n2++){
-          GraphBuffer[numBits+n2]=GraphBuffer[idx-1]^1;
-        }
-        //memset(GraphBuffer+numBits, GraphBuffer[idx-1]^1 , n);  
-      }      
-      numBits += n;
-    }
-    n=0;
-    lastval=GraphBuffer[idx];
-  }//end for
-  return numBits;
+  int shift=0;
+  //set options from parameters entered with the command
+  sscanf(Cmd, "%i", &shift);
+  int shiftedVal=0;
+  for(int i = 0; i<GraphTraceLen; i++){
+    shiftedVal=GraphBuffer[i]+shift;
+    if (shiftedVal>127) 
+      shiftedVal=127;
+    else if (shiftedVal<-127) 
+      shiftedVal=-127;
+    GraphBuffer[i]= shiftedVal;
+  }
+  CmdNorm("");
+  return 0;

 }
 
 }
 

-//by marshmellow  (from holiman's base)
-// full fsk demod from GraphBuffer wave to decoded 1s and 0s (no mandemod)
-size_t fskdemod(uint8_t rfLen, uint8_t invert)
-{
-  //uint8_t h2l_crossing_value = 6;
-  //uint8_t l2h_crossing_value = 5;
-  
-  // if (rfLen==64)  //currently only know settings for RF/64 change from default if option entered
-  // {
-  //   h2l_crossing_value=8;  //or 8  as 64/8 = 8
-  //   l2h_crossing_value=6;  //or 6.4 as 64/10 = 6.4
-  // }
-  size_t size  = GraphTraceLen; 
-    // FSK demodulator
-  size = fsk_wave_demod(size);
-  size = aggregate_bits(size,rfLen,192,invert);
- // size = aggregate_bits(size, h2l_crossing_value, l2h_crossing_value,192, invert); //192=no limit to same values
-  //done messing with GraphBuffer - repaint
-  RepaintGraphWindow();
-  return size;
-}
-uint32_t bytebits_to_byte(int* src, int numbits)
+/* Print our clock rate */
+// uses data from graphbuffer
+int CmdDetectClockRate(const char *Cmd)

 {
 {

-  uint32_t num = 0;
-  for(int i = 0 ; i < numbits ; i++)
-  {
-    num = (num << 1) | (*src);
-    src++;
-  }
-  return num;
+  GetClock("",0,0);
+       //int clock = DetectASKClock(0);
+       //PrintAndLog("Auto-detected clock rate: %d", clock);
+  return 0;

 }
 
 //by marshmellow
 }
 
 //by marshmellow

-//fsk demod and print binary
+//fsk raw demod and print binary
+//takes 4 arguments - Clock, invert, rchigh, rclow
+//defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))

 int CmdFSKrawdemod(const char *Cmd)
 {
 int CmdFSKrawdemod(const char *Cmd)
 {

-  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  //raw fsk demod  no manchester decoding no start bit finding just get binary from wave

   //set defaults
   //set defaults

-  uint8_t rfLen = 50;
-  uint8_t invert=0;
+  int rfLen = 0;
+  int invert=0;
+  int fchigh=0;
+  int fclow=0;

   //set options from parameters entered with the command
   //set options from parameters entered with the command

+       sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
+

   if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
   if (strlen(Cmd)>0 && strlen(Cmd)<=2) {

-     rfLen=param_get8(Cmd, 0); //if rfLen option only is used

      if (rfLen==1){
       invert=1;   //if invert option only is used
      if (rfLen==1){
       invert=1;   //if invert option only is used

-      rfLen = 50;
-     } else if(rfLen==0) rfLen=50;
-  } 
-  if (strlen(Cmd)>2) {
-    rfLen=param_get8(Cmd, 0);  //if both options are used
-    invert=param_get8(Cmd,1);
+      rfLen = 0;
+     }
+       }
+
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t BitLen = getFromGraphBuf(BitStream);
+  //get field clock lengths
+  uint16_t fcs=0;
+  if (fchigh==0 || fclow == 0){
+    fcs=countFC(BitStream, BitLen);
+    if (fcs==0){
+      fchigh=10;
+      fclow=8;
+    }else{
+      fchigh = (fcs >> 8) & 0xFF;
+      fclow = fcs & 0xFF;
+    }

   }
   }

-  PrintAndLog("Args invert: %d \nClock:%d",invert,rfLen);
- 
-  size_t size  = fskdemod(rfLen,invert); 
-  
-  PrintAndLog("FSK decoded bitstream:");
-  // Now output the bitstream to the scrollback by line of 16 bits
-  if(size > (7*32)+2) size = (7*32)+2; //only output a max of 7 blocks of 32 bits  most tags will have full bit stream inside that sample size
-  printBitStream(GraphBuffer,size);
+  //get bit clock length
+  if (rfLen==0){
+    rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
+    if (rfLen == 0) rfLen = 50;
+  }
+  PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
+       int size  = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
+  if (size>0){
+    PrintAndLog("FSK decoded bitstream:");
+               setDemodBuf(BitStream,size,0);

 
 

-  ClearGraph(1);
+    // Now output the bitstream to the scrollback by line of 16 bits
+    if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits  most tags will have full bit stream inside that sample size
+    printBitStream(BitStream,size);
+  } else{
+    PrintAndLog("no FSK data found");
+  }

   return 0;
 }
 
   return 0;
 }
 

-//by marshmellow
+//by marshmellow (based on existing demod + holiman's refactor)
+//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
+//print full HID Prox ID and some bit format details if found

 int CmdFSKdemodHID(const char *Cmd)
 {
   //raw fsk demod no manchester decoding no start bit finding just get binary from wave
 int CmdFSKdemodHID(const char *Cmd)
 {
   //raw fsk demod no manchester decoding no start bit finding just get binary from wave

-  //set defaults
-  uint8_t rfLen = 50;
-  uint8_t invert=0;//param_get8(Cmd, 0);
-  size_t idx=0; 

   uint32_t hi2=0, hi=0, lo=0;
 
   uint32_t hi2=0, hi=0, lo=0;
 

+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t BitLen = getFromGraphBuf(BitStream);

   //get binary from fsk wave
   //get binary from fsk wave

-  size_t size = fskdemod(rfLen,invert); 
-  
-    // final loop, go over previously decoded fsk data and now manchester decode into usable tag ID
-    // 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0
-  int frame_marker_mask[] = {1,1,1,0,0,0};
-  int numshifts = 0;
-  idx = 0;
-  while( idx + 6 < size) {
-    // search for a start of frame marker
-
-    if ( memcmp(GraphBuffer+idx, frame_marker_mask, sizeof(frame_marker_mask)) == 0)
-    { // frame marker found
-      idx+=6;//sizeof(frame_marker_mask); //size of int is >6
-      while(GraphBuffer[idx] != GraphBuffer[idx+1] && idx < size-2)
-      { 
-        // Keep going until next frame marker (or error)
-        // Shift in a bit. Start by shifting high registers
-        hi2 = (hi2<<1)|(hi>>31);
-        hi = (hi<<1)|(lo>>31);
-        //Then, shift in a 0 or one into low
-        if (GraphBuffer[idx] && !GraphBuffer[idx+1])  // 1 0
-          lo=(lo<<1)|0;
-        else // 0 1
-          lo=(lo<<1)|1;
-        numshifts++;
-        idx += 2;
+       size_t idx  = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+  if (idx<0){
+    if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk");
+    return 0;
+  }
+  if (hi2==0 && hi==0 && lo==0) {
+    if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
+    return 0;
+  }
+  if (hi2 != 0){ //extra large HID tags
+               PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
+       (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
+  }
+  else {  //standard HID tags <38 bits
+    uint8_t fmtLen = 0;
+    uint32_t fc = 0;
+    uint32_t cardnum = 0;
+    if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
+      uint32_t lo2=0;
+      lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
+      uint8_t idx3 = 1;
+      while(lo2>1){ //find last bit set to 1 (format len bit)
+        lo2=lo2>>1;
+        idx3++;

       }
       }

-
-      //PrintAndLog("Num shifts: %d ", numshifts);
-      // Hopefully, we read a tag and  hit upon the next frame marker
-      if(idx + 6 < size)
-      {
-        if ( memcmp(GraphBuffer+(idx), frame_marker_mask, sizeof(frame_marker_mask)) == 0)
-        {
-          if (hi2 != 0){ //extra large HID tags
-            PrintAndLog("TAG ID: %x%08x%08x (%d)",
-               (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
-          }
-          else {  //standard HID tags <38 bits
-            //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd
-            uint8_t bitlen = 0;
-            uint32_t fc = 0;
-            uint32_t cardnum = 0;
-            if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
-              uint32_t lo2=0;
-              lo2=(((hi & 15) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
-              uint8_t idx3 = 1;
-              while(lo2>1){ //find last bit set to 1 (format len bit)
-                lo2=lo2>>1;
-                idx3++;
-              }
-              bitlen =idx3+19;  
-              fc =0;
-              cardnum=0;
-              if(bitlen==26){
-                cardnum = (lo>>1)&0xFFFF;
-                fc = (lo>>17)&0xFF;
-              }
-              if(bitlen==37){
-                cardnum = (lo>>1)&0x7FFFF;
-                fc = ((hi&0xF)<<12)|(lo>>20);
-              }
-              if(bitlen==34){
-                cardnum = (lo>>1)&0xFFFF;
-                fc= ((hi&1)<<15)|(lo>>17);
-              }
-              if(bitlen==35){
-                cardnum = (lo>>1)&0xFFFFF;
-                fc = ((hi&1)<<11)|(lo>>21);
-              }
-            }
-            else { //if bit 38 is not set then 37 bit format is used
-              bitlen= 37;
-              fc =0;
-              cardnum=0;
-              if(bitlen==37){
-                cardnum = (lo>>1)&0x7FFFF;
-                fc = ((hi&0xF)<<12)|(lo>>20);
-              }
-            }
-            
-            PrintAndLog("TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
-              (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
-              (unsigned int) bitlen, (unsigned int) fc, (unsigned int) cardnum);
-            ClearGraph(1);
-            return 0;
-          }
-        }
+                       fmtLen =idx3+19;
+      fc =0;
+      cardnum=0;
+      if(fmtLen==26){
+        cardnum = (lo>>1)&0xFFFF;
+        fc = (lo>>17)&0xFF;
+      }
+      if(fmtLen==34){
+        cardnum = (lo>>1)&0xFFFF;
+        fc= ((hi&1)<<15)|(lo>>17);
+      }
+      if(fmtLen==35){
+        cardnum = (lo>>1)&0xFFFFF;
+        fc = ((hi&1)<<11)|(lo>>21);

       }
       }

-      // reset
-      hi2 = hi = lo = 0;
-      numshifts = 0;
-    }else
-    {
-      idx++;

     }
     }

+    else { //if bit 38 is not set then 37 bit format is used
+      fmtLen = 37;
+      fc = 0;
+      cardnum = 0;
+      if(fmtLen == 37){
+        cardnum = (lo>>1)&0x7FFFF;
+        fc = ((hi&0xF)<<12)|(lo>>20);
+      }
+               }
+               PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
+      (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+      (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);

   }
   }

-  if (idx + sizeof(frame_marker_mask) >= size){
-    PrintAndLog("start bits for hid not found");
-    PrintAndLog("FSK decoded bitstream:");
-    // Now output the bitstream to the scrollback by line of 16 bits
-    printBitStream(GraphBuffer,size);
- 
+  setDemodBuf(BitStream,BitLen,idx);
+  if (g_debugMode){ 
+    PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+    printDemodBuff();

   }
   }

-  ClearGraph(1);
-  return 0;
+  return 1;

 }
 
 //by marshmellow
 }
 
 //by marshmellow

+//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
+//print full Paradox Prox ID and some bit format details if found
+int CmdFSKdemodParadox(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  uint32_t hi2=0, hi=0, lo=0;
+
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  size_t BitLen = getFromGraphBuf(BitStream);
+  //get binary from fsk wave
+  size_t idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+  if (idx<0){
+    if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk");
+    return 0;
+  }
+  if (hi2==0 && hi==0 && lo==0){
+    if (g_debugMode) PrintAndLog("DEBUG: Error - no value found");
+    return 0;
+  }
+  uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
+  uint32_t cardnum = (lo>>10)&0xFFFF;
+  
+  PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
+    hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF );
+  setDemodBuf(BitStream,BitLen,idx);
+  if (g_debugMode){ 
+    PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
+    printDemodBuff();
+  }
+  return 1;
+}
+
+
+//by marshmellow
+//IO-Prox demod - FSK RF/64 with preamble of 000000001
+//print ioprox ID and some format details

 int CmdFSKdemodIO(const char *Cmd)
 {
   //raw fsk demod no manchester decoding no start bit finding just get binary from wave
   //set defaults
 int CmdFSKdemodIO(const char *Cmd)
 {
   //raw fsk demod no manchester decoding no start bit finding just get binary from wave
   //set defaults

-  uint8_t rfLen = 64;
-  uint8_t invert=1;
-  size_t idx=0; 
-  uint8_t testMax=0;
-  //test samples are not just noise
-  if (GraphTraceLen < 64) return 0;
-  for(idx=0;idx<64;idx++){
-    if (testMax<GraphBuffer[idx]) testMax=GraphBuffer[idx];
-  }
-  idx=0;
-  //get full binary from fsk wave
-  size_t size = fskdemod(rfLen,invert); 
- 
-  //if not just noise
-  //PrintAndLog("testMax %d",testMax);
-  if (testMax>40){
+       int idx=0;
+  //something in graphbuffer?
+  if (GraphTraceLen < 65) {
+    if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
+    return 0;
+  }
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t BitLen = getFromGraphBuf(BitStream);
+
+  //get binary from fsk wave
+       idx = IOdemodFSK(BitStream,BitLen);
+  if (idx<0){
+    if (g_debugMode==1) PrintAndLog("DEBUG: demoding fsk error: %d", idx);
+    return 0;
+  }
+  if (idx==0){
+    if (g_debugMode==1){
+      PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
+      if (BitLen > 92) printBitStream(BitStream,92);
+    } 
+    return 0;
+  }

     //Index map
     //0           10          20          30          40          50          60
     //|           |           |           |           |           |           |
     //Index map
     //0           10          20          30          40          50          60
     //|           |           |           |           |           |           |


@@ -861,45 +793,260 @@ int CmdFSKdemodIO(const char *Cmd)
     //
     //XSF(version)facility:codeone+codetwo (raw)
     //Handle the data
     //
     //XSF(version)facility:codeone+codetwo (raw)
     //Handle the data

-    int mask[] = {0,0,0,0,0,0,0,0,0,1};
-    for( idx=0; idx < (size - 74); idx++) {
-      if ( memcmp(GraphBuffer + idx, mask, sizeof(mask))==0) { 
-        //frame marker found
-        if (GraphBuffer[idx+17]==1 && GraphBuffer[idx+26]==1 && GraphBuffer[idx+35]==1 && GraphBuffer[idx+44]==1 && GraphBuffer[idx+53]==1){
-          //confirmed proper separator bits found
-          
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx],    GraphBuffer[idx+1],  GraphBuffer[idx+2], GraphBuffer[idx+3], GraphBuffer[idx+4], GraphBuffer[idx+5], GraphBuffer[idx+6], GraphBuffer[idx+7], GraphBuffer[idx+8]);
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx+9],  GraphBuffer[idx+10], GraphBuffer[idx+11],GraphBuffer[idx+12],GraphBuffer[idx+13],GraphBuffer[idx+14],GraphBuffer[idx+15],GraphBuffer[idx+16],GraphBuffer[idx+17]);       
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx+18], GraphBuffer[idx+19], GraphBuffer[idx+20],GraphBuffer[idx+21],GraphBuffer[idx+22],GraphBuffer[idx+23],GraphBuffer[idx+24],GraphBuffer[idx+25],GraphBuffer[idx+26]);
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx+27], GraphBuffer[idx+28], GraphBuffer[idx+29],GraphBuffer[idx+30],GraphBuffer[idx+31],GraphBuffer[idx+32],GraphBuffer[idx+33],GraphBuffer[idx+34],GraphBuffer[idx+35]);
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx+36], GraphBuffer[idx+37], GraphBuffer[idx+38],GraphBuffer[idx+39],GraphBuffer[idx+40],GraphBuffer[idx+41],GraphBuffer[idx+42],GraphBuffer[idx+43],GraphBuffer[idx+44]);
-          PrintAndLog("%d%d%d%d%d%d%d%d %d",GraphBuffer[idx+45], GraphBuffer[idx+46], GraphBuffer[idx+47],GraphBuffer[idx+48],GraphBuffer[idx+49],GraphBuffer[idx+50],GraphBuffer[idx+51],GraphBuffer[idx+52],GraphBuffer[idx+53]);
-          PrintAndLog("%d%d%d%d%d%d%d%d %d%d",GraphBuffer[idx+54],GraphBuffer[idx+55],GraphBuffer[idx+56],GraphBuffer[idx+57],GraphBuffer[idx+58],GraphBuffer[idx+59],GraphBuffer[idx+60],GraphBuffer[idx+61],GraphBuffer[idx+62],GraphBuffer[idx+63]);
-      
-          uint32_t code = bytebits_to_byte(GraphBuffer+idx,32);
-          uint32_t code2 = bytebits_to_byte(GraphBuffer+idx+32,32); 
-          short version = bytebits_to_byte(GraphBuffer+idx+27,8); //14,4
-          uint8_t facilitycode = bytebits_to_byte(GraphBuffer+idx+19,8) ;
-          uint16_t number = (bytebits_to_byte(GraphBuffer+idx+36,8)<<8)|(bytebits_to_byte(GraphBuffer+idx+45,8)); //36,9
-          
-          PrintAndLog("XSF(%02d)%02x:%d (%08x%08x)",version,facilitycode,number,code,code2);    
-          ClearGraph(1); 
-          return 0;
-        } else {
-          PrintAndLog("thought we had a valid tag but did not match format");
-        }
-      }   
+  if (idx+64>BitLen) {
+    if (g_debugMode==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen);
+    return 0;
+  }
+  PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx],    BitStream[idx+1],  BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]);
+       PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9],  BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]);
+
+  uint32_t code = bytebits_to_byte(BitStream+idx,32);
+       uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
+  uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
+  uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
+  uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
+       PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
+  setDemodBuf(BitStream,64,idx);
+       if (g_debugMode){
+    PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
+    printDemodBuff();
+  }
+       return 1;
+}
+
+
+//by marshmellow
+//AWID Prox demod - FSK RF/50 with preamble of 00000001  (always a 96 bit data stream)
+//print full AWID Prox ID and some bit format details if found
+int CmdFSKdemodAWID(const char *Cmd)
+{
+
+  //int verbose=1;
+  //sscanf(Cmd, "%i", &verbose);
+
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  size_t size = getFromGraphBuf(BitStream);
+
+  //get binary from fsk wave
+  int idx = AWIDdemodFSK(BitStream, size);
+  if (idx<=0){
+    if (g_debugMode==1){
+      if (idx == -1)
+        PrintAndLog("DEBUG: Error - not enough samples");
+      else if (idx == -2)
+        PrintAndLog("DEBUG: Error - only noise found - no waves");
+      else if (idx == -3)
+        PrintAndLog("DEBUG: Error - problem during FSK demod");
+    //  else if (idx == -3)
+    //    PrintAndLog("Error: thought we had a tag but the parity failed");
+      else if (idx == -4)
+        PrintAndLog("DEBUG: Error - AWID preamble not found");
+      else if (idx == -5)
+        PrintAndLog("DEBUG: Error - Second AWID preamble not found");
+      else
+        PrintAndLog("DEBUG: Error %d",idx);

     }
     }

-    if (idx >= (size-74)){
-      PrintAndLog("start bits for io prox not found");
-      PrintAndLog("FSK decoded bitstream:");
-      // Now output the bitstream to the scrollback by line of 16 bits
-      printBitStream(GraphBuffer,size);  
+    return 0;
+  }
+
+  // Index map
+  // 0            10            20            30              40            50              60
+  // |            |             |             |               |             |               |
+  // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
+  // -----------------------------------------------------------------------------
+  // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
+  // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
+  //          |---26 bit---|    |-----117----||-------------142-------------|
+  // b = format bit len, o = odd parity of last 3 bits
+  // f = facility code, c = card number
+  // w = wiegand parity
+  // (26 bit format shown)
+ 
+  //get raw ID before removing parities
+  uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+  uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+  uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+  setDemodBuf(BitStream,96,idx);
+
+  size = removeParity(BitStream, idx+8, 4, 1, 88);
+  if (size != 66){
+    if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+    return 0;
+  }
+  // ok valid card found!
+
+  // Index map
+  // 0           10         20        30          40        50        60
+  // |           |          |         |           |         |         |
+  // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
+  // -----------------------------------------------------------------------------
+  // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
+  // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+  // |26 bit|   |-117--| |-----142------|
+  // b = format bit len, o = odd parity of last 3 bits
+  // f = facility code, c = card number
+  // w = wiegand parity
+  // (26 bit format shown)
+
+  uint32_t fc = 0;
+  uint32_t cardnum = 0;
+  uint32_t code1 = 0;
+  uint32_t code2 = 0;
+  uint8_t fmtLen = bytebits_to_byte(BitStream,8);
+  if (fmtLen==26){
+    fc = bytebits_to_byte(BitStream+9, 8);
+    cardnum = bytebits_to_byte(BitStream+17, 16);
+    code1 = bytebits_to_byte(BitStream+8,fmtLen);
+    PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+  } else {
+    cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+    if (fmtLen>32){
+      code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
+      code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
+      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+    } else{
+      code1 = bytebits_to_byte(BitStream+8,fmtLen);
+      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);

     }
   }
     }
   }

-  ClearGraph(1);
-  return 0;
+  if (g_debugMode){
+    PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
+    printDemodBuff();
+  }
+  //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
+  return 1;
+}
+
+//by marshmellow
+//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001  (always a 128 bit data stream)
+//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
+int CmdFSKdemodPyramid(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  size_t size = getFromGraphBuf(BitStream);
+
+  //get binary from fsk wave
+  int idx = PyramiddemodFSK(BitStream, size);
+  if (idx < 0){
+    if (g_debugMode==1){
+      if (idx == -5)
+        PrintAndLog("DEBUG: Error - not enough samples");
+      else if (idx == -1)
+        PrintAndLog("DEBUG: Error - only noise found - no waves");
+      else if (idx == -2)
+        PrintAndLog("DEBUG: Error - problem during FSK demod");
+      else if (idx == -3)
+        PrintAndLog("DEBUG: Error - Second Pyramid preamble not found");
+      else if (idx == -4)
+        PrintAndLog("DEBUG: Error - Pyramid preamble not found");
+      else
+        PrintAndLog("DEBUG: Error - idx: %d",idx);
+    }
+    return 0;
+  }
+  // Index map
+  // 0           10          20          30            40          50          60
+  // |           |           |           |             |           |           |
+  // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
+  // -----------------------------------------------------------------------------
+  // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
+  // premable  xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
+
+  // 64    70            80          90          100         110           120
+  // |     |             |           |           |           |             |
+  // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
+  // -----------------------------------------------------------------------------
+  // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
+  // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
+  //                                  |---115---||---------71---------|
+  // s = format start bit, o = odd parity of last 7 bits
+  // f = facility code, c = card number
+  // w = wiegand parity, x = extra space for other formats
+  // p = unknown checksum
+  // (26 bit format shown)
+  
+  //get raw ID before removing parities
+  uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
+  uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
+  uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
+  uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
+  setDemodBuf(BitStream,128,idx);
+
+  size = removeParity(BitStream, idx+8, 8, 1, 120);
+  if (size != 105){
+    if (g_debugMode==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
+    return 0;
+  }
+
+  // ok valid card found!
+
+  // Index map
+  // 0         10        20        30        40        50        60        70
+  // |         |         |         |         |         |         |         |
+  // 01234567890123456789012345678901234567890123456789012345678901234567890
+  // -----------------------------------------------------------------------
+  // 00000000000000000000000000000000000000000000000000000000000000000000000
+  // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+
+  // 71         80         90          100
+  // |          |          |           |
+  // 1 2 34567890 1234567890123456 7 8901234
+  // ---------------------------------------
+  // 1 1 01110011 0000000001000110 0 1001010
+  // s w ffffffff cccccccccccccccc w ppppppp
+  //     |--115-| |------71------|
+  // s = format start bit, o = odd parity of last 7 bits
+  // f = facility code, c = card number
+  // w = wiegand parity, x = extra space for other formats
+  // p = unknown checksum
+  // (26 bit format shown)
+
+  //find start bit to get fmtLen
+  int j;
+  for (j=0; j<size; j++){
+    if(BitStream[j]) break;
+  }
+  uint8_t fmtLen = size-j-8;
+  uint32_t fc = 0;
+  uint32_t cardnum = 0;
+  uint32_t code1 = 0;
+  //uint32_t code2 = 0;
+  if (fmtLen==26){
+    fc = bytebits_to_byte(BitStream+73, 8);
+    cardnum = bytebits_to_byte(BitStream+81, 16);
+    code1 = bytebits_to_byte(BitStream+72,fmtLen);
+    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
+  } else if (fmtLen==45){
+    fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
+    fc = bytebits_to_byte(BitStream+53, 10);
+    cardnum = bytebits_to_byte(BitStream+63, 32);
+    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+  } else {
+    cardnum = bytebits_to_byte(BitStream+81, 16);
+    if (fmtLen>32){
+      //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
+      //code2 = bytebits_to_byte(BitStream+(size-32),32);
+      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+    } else{
+      //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
+      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+    }
+  }
+  //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
+  if (g_debugMode){
+    PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
+    printDemodBuff();
+  }
+  return 1;

 }
 }

+

 int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
 {
   static const int LowTone[]  = {
 int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
 {
   static const int LowTone[]  = {


@@ -920,12 +1067,12 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
 
   int lowLen = sizeof (LowTone) / sizeof (int);
   int highLen = sizeof (HighTone) / sizeof (int);
 
   int lowLen = sizeof (LowTone) / sizeof (int);
   int highLen = sizeof (HighTone) / sizeof (int);

-  int convLen = (highLen > lowLen) ? highLen : lowLen; //if highlen > lowLen then highlen else lowlen
+  int convLen = (highLen > lowLen) ? highLen : lowLen;

   uint32_t hi = 0, lo = 0;
 
   int i, j;
   int minMark = 0, maxMark = 0;
   uint32_t hi = 0, lo = 0;
 
   int i, j;
   int minMark = 0, maxMark = 0;

-  
+

   for (i = 0; i < GraphTraceLen - convLen; ++i) {
     int lowSum = 0, highSum = 0;
 
   for (i = 0; i < GraphTraceLen - convLen; ++i) {
     int lowSum = 0, highSum = 0;
 


@@ -986,8 +1133,7 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
   PrintAndLog("actual data bits start at sample %d", maxPos);
   PrintAndLog("length %d/%d", highLen, lowLen);
 
   PrintAndLog("actual data bits start at sample %d", maxPos);
   PrintAndLog("length %d/%d", highLen, lowLen);
 

-  uint8_t bits[46];
-  bits[sizeof(bits)-1] = '\0';
+  uint8_t bits[46] = {0x00};

 
   // find bit pairs and manchester decode them
   for (i = 0; i < arraylen(bits) - 1; ++i) {
 
   // find bit pairs and manchester decode them
   for (i = 0; i < arraylen(bits) - 1; ++i) {


@@ -1019,6 +1165,210 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
   return 0;
 }
 
   return 0;
 }
 

+//by marshmellow
+//attempt to detect the field clock and bit clock for FSK
+int CmdFSKfcDetect(const char *Cmd)
+{
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  size_t size = getFromGraphBuf(BitStream);
+
+  uint16_t ans = countFC(BitStream, size); 
+  if (ans==0) {
+    if (g_debugMode) PrintAndLog("DEBUG: No data found");
+    return 0;
+  }
+  uint8_t fc1, fc2;
+  fc1 = (ans >> 8) & 0xFF;
+  fc2 = ans & 0xFF;
+
+  uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2);
+  if (rf1==0) {
+    if (g_debugMode) PrintAndLog("DEBUG: Clock detect error");
+    return 0;
+  }
+  PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
+  return 1;
+}
+
+//by marshmellow
+//attempt to detect the bit clock for PSK or NRZ modulations
+int CmdDetectNRZpskClockRate(const char *Cmd)
+{
+       GetNRZpskClock("",0,0);
+       return 0;
+}
+
+//by marshmellow
+//attempt to psk1 or nrz demod graph buffer
+//NOTE CURRENTLY RELIES ON PEAKS :(
+int PSKnrzDemod(const char *Cmd, uint8_t verbose)
+{
+       int invert=0;
+       int clk=0;
+       sscanf(Cmd, "%i %i", &clk, &invert);
+       if (invert != 0 && invert != 1) {
+               PrintAndLog("Invalid argument: %s", Cmd);
+               return -1;
+       }
+       uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t BitLen = getFromGraphBuf(BitStream);
+       int errCnt=0;
+       errCnt = pskNRZrawDemod(BitStream, &BitLen,&clk,&invert);
+       if (errCnt<0|| BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
+               if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+               return -1;
+       }
+  if (verbose) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+       //prime demod buffer for output
+       setDemodBuf(BitStream,BitLen,0);
+       return errCnt;
+}
+// Indala 26 bit decode
+// by marshmellow
+// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
+int CmdIndalaDecode(const char *Cmd)
+{
+  int ans;
+  if (strlen(Cmd)>0){
+    ans = PSKnrzDemod(Cmd, 0);
+  } else{ //default to RF/32
+    ans = PSKnrzDemod("32", 0);
+  }
+
+       if (ans < 0){
+               if (g_debugMode==1) 
+      PrintAndLog("Error1: %d",ans);
+               return 0;
+       }
+       uint8_t invert=0;
+       ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert);
+       if (ans < 1) {
+               if (g_debugMode==1)
+      PrintAndLog("Error2: %d",ans);
+               return -1;
+       }
+       char showbits[251];
+       if (invert)
+    if (g_debugMode==1)
+      PrintAndLog("Had to invert bits");
+
+       //convert UID to HEX
+       uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
+       int idx;
+       uid1=0;
+       uid2=0;
+       PrintAndLog("BitLen: %d",DemodBufferLen);
+       if (DemodBufferLen==64){
+               for( idx=0; idx<64; idx++) {
+                       uid1=(uid1<<1)|(uid2>>31);
+                       if (DemodBuffer[idx] == 0) {
+                               uid2=(uid2<<1)|0;
+                               showbits[idx]='0';
+                       } else {
+                               uid2=(uid2<<1)|1;
+                               showbits[idx]='1';
+                       }
+               }
+               showbits[idx]='\0';
+               PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2);
+       }
+       else {
+               uid3=0;
+               uid4=0;
+               uid5=0;
+               uid6=0;
+               uid7=0;
+               for( idx=0; idx<DemodBufferLen; idx++) {
+                       uid1=(uid1<<1)|(uid2>>31);
+                       uid2=(uid2<<1)|(uid3>>31);
+                       uid3=(uid3<<1)|(uid4>>31);
+                       uid4=(uid4<<1)|(uid5>>31);
+                       uid5=(uid5<<1)|(uid6>>31);
+                       uid6=(uid6<<1)|(uid7>>31);
+                       if (DemodBuffer[idx] == 0) {
+                               uid7=(uid7<<1)|0;
+                               showbits[idx]='0';
+                       }
+                       else {
+                               uid7=(uid7<<1)|1;
+                               showbits[idx]='1';
+                       }
+               }
+               showbits[idx]='\0';
+               PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
+       }
+       return 1;
+}
+
+//by marshmellow
+//attempt to clean psk wave noise after a peak 
+//NOTE RELIES ON PEAKS :(
+int CmdPskClean(const char *Cmd)
+{
+       uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t bitLen = getFromGraphBuf(bitStream);
+       pskCleanWave(bitStream, bitLen);
+       setGraphBuf(bitStream, bitLen);
+       return 0;
+}
+
+// by marshmellow
+// takes 2 arguments - clock and invert both as integers
+// attempts to demodulate psk only
+// prints binary found and saves in demodbuffer for further commands
+int CmdpskNRZrawDemod(const char *Cmd)
+{
+  int errCnt;
+ 
+  errCnt = PSKnrzDemod(Cmd, 1);
+       //output
+       if (errCnt<0){
+    if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);  
+    return 0;
+  } 
+       if (errCnt>0){
+               if (g_debugMode){
+      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+      PrintAndLog("PSK or NRZ demoded bitstream:");
+      // Now output the bitstream to the scrollback by line of 16 bits
+      printDemodBuff();
+    }
+       }else{
+    PrintAndLog("PSK or NRZ demoded bitstream:");
+    // Now output the bitstream to the scrollback by line of 16 bits
+    printDemodBuff();  
+    return 1;
+  }
+  return 0;
+}
+
+// by marshmellow
+// takes same args as cmdpsknrzrawdemod
+int CmdPSK2rawDemod(const char *Cmd)
+{
+  int errCnt=0;
+  errCnt=PSKnrzDemod(Cmd, 1);
+  if (errCnt<0){
+    if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);  
+    return 0;
+  } 
+  psk1TOpsk2(DemodBuffer, DemodBufferLen);
+  if (errCnt>0){
+    if (g_debugMode){
+      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+      PrintAndLog("PSK2 demoded bitstream:");
+      // Now output the bitstream to the scrollback by line of 16 bits
+      printDemodBuff();
+    }
+  }else{
+    PrintAndLog("PSK2 demoded bitstream:");
+    // Now output the bitstream to the scrollback by line of 16 bits
+    printDemodBuff();  
+  }
+  return 1;
+}
+

 int CmdGrid(const char *Cmd)
 {
   sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
 int CmdGrid(const char *Cmd)
 {
   sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);


@@ -1036,7 +1386,7 @@ int CmdHexsamples(const char *Cmd)
   char string_buf[25];
   char* string_ptr = string_buf;
   uint8_t got[40000];
   char string_buf[25];
   char* string_ptr = string_buf;
   uint8_t got[40000];

- 
+

   sscanf(Cmd, "%i %i", &requested, &offset);
 
   /* if no args send something */
   sscanf(Cmd, "%i %i", &requested, &offset);
 
   /* if no args send something */


@@ -1046,7 +1396,7 @@ int CmdHexsamples(const char *Cmd)
   if (offset + requested > sizeof(got)) {
     PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 40000");
     return 0;
   if (offset + requested > sizeof(got)) {
     PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 40000");
     return 0;

-  } 
+       }

 
   GetFromBigBuf(got,requested,offset);
   WaitForResponse(CMD_ACK,NULL);
 
   GetFromBigBuf(got,requested,offset);
   WaitForResponse(CMD_ACK,NULL);


@@ -1066,8 +1416,8 @@ int CmdHexsamples(const char *Cmd)
       *(string_ptr - 1) = '\0';
       PrintAndLog("%s", string_buf);
       string_buf[0] = '\0';
       *(string_ptr - 1) = '\0';
       PrintAndLog("%s", string_buf);
       string_buf[0] = '\0';

-    }  

   }
   }

+       }

   return 0;
 }
 
   return 0;
 }
 


@@ -1094,22 +1444,21 @@ int CmdHpf(const char *Cmd)
 
 int CmdSamples(const char *Cmd)
 {
 
 int CmdSamples(const char *Cmd)
 {

-  int cnt = 0;
-  int n;
-  uint8_t got[40000];
+       uint8_t got[40000] = {0x00};

 
 

-  n = strtol(Cmd, NULL, 0);
-  if (n == 0) n = 6000;
-  if (n > sizeof(got)) n = sizeof(got);
-  
-  PrintAndLog("Reading %d samples\n", n);
+       int n = strtol(Cmd, NULL, 0);
+       if (n == 0)
+               n = 20000;
+
+       if (n > sizeof(got))
+               n = sizeof(got);
+
+       PrintAndLog("Reading %d samples from device memory\n", n);

   GetFromBigBuf(got,n,0);
   WaitForResponse(CMD_ACK,NULL);
   GetFromBigBuf(got,n,0);
   WaitForResponse(CMD_ACK,NULL);

-  for (int j = 0; j < n; j++) {
-    GraphBuffer[cnt++] = ((int)got[j]) - 128;
+       for (int j = 0; j < n; j++) {
+               GraphBuffer[j] = ((int)got[j]) - 128;

   }
   }

-  
-  PrintAndLog("Done!\n");

   GraphTraceLen = n;
   RepaintGraphWindow();
   return 0;
   GraphTraceLen = n;
   RepaintGraphWindow();
   return 0;


@@ -1117,29 +1466,68 @@ int CmdSamples(const char *Cmd)
 
 int CmdTuneSamples(const char *Cmd)
 {
 
 int CmdTuneSamples(const char *Cmd)
 {

-  int cnt = 0;
-  int n = 255;
-  uint8_t got[255];
+       int timeout = 0;
+       printf("\nMeasuring antenna characteristics, please wait...");
+
+       UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+       SendCommand(&c);
+
+       UsbCommand resp;
+       while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+               timeout++;
+               printf(".");
+               if (timeout > 7) {
+                       PrintAndLog("\nNo response from Proxmark. Aborting...");
+                       return 1;
+               }
+       }
+
+       int peakv, peakf;
+       int vLf125, vLf134, vHf;
+       vLf125 = resp.arg[0] & 0xffff;
+       vLf134 = resp.arg[0] >> 16;
+       vHf = resp.arg[1] & 0xffff;;
+       peakf = resp.arg[2] & 0xffff;
+       peakv = resp.arg[2] >> 16;
+       PrintAndLog("");
+       PrintAndLog("# LF antenna: %5.2f V @   125.00 kHz", vLf125/1000.0);
+       PrintAndLog("# LF antenna: %5.2f V @   134.00 kHz", vLf134/1000.0);
+       PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
+       PrintAndLog("# HF antenna: %5.2f V @    13.56 MHz", vHf/1000.0);
+       if (peakv<2000)
+               PrintAndLog("# Your LF antenna is unusable.");
+       else if (peakv<10000)
+               PrintAndLog("# Your LF antenna is marginal.");
+       if (vHf<2000)
+               PrintAndLog("# Your HF antenna is unusable.");
+       else if (vHf<5000)
+               PrintAndLog("# Your HF antenna is marginal.");
+
+       for (int i = 0; i < 256; i++) {
+               GraphBuffer[i] = resp.d.asBytes[i] - 128;
+       }

 
 

-  PrintAndLog("Reading %d samples\n", n);
-  GetFromBigBuf(got,n,7256); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256
-  WaitForResponse(CMD_ACK,NULL);
-  for (int j = 0; j < n; j++) {
-    GraphBuffer[cnt++] = ((int)got[j]) - 128;
-  }
-  

   PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
   PrintAndLog("\n");
   PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
   PrintAndLog("\n");

-  GraphTraceLen = n;
-  RepaintGraphWindow();
+       GraphTraceLen = 256;
+       ShowGraphWindow();
+

   return 0;
 }
 
   return 0;
 }
 

+

 int CmdLoad(const char *Cmd)
 {
 int CmdLoad(const char *Cmd)
 {

-  FILE *f = fopen(Cmd, "r");
+  char filename[FILE_PATH_SIZE] = {0x00};
+  int len = 0;
+
+  len = strlen(Cmd);
+  if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+  memcpy(filename, Cmd, len);
+       
+  FILE *f = fopen(filename, "r");

   if (!f) {
   if (!f) {

-    PrintAndLog("couldn't open '%s'", Cmd);
+     PrintAndLog("couldn't open '%s'", filename);

     return 0;
   }
 
     return 0;
   }
 


@@ -1167,6 +1555,17 @@ int CmdLtrim(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+// trim graph to input argument length
+int CmdRtrim(const char *Cmd)
+{
+  int ds = atoi(Cmd);
+
+  GraphTraceLen = ds;
+
+  RepaintGraphWindow();
+  return 0;
+}
+

 /*
  * Manchester demodulate a bitstream. The bitstream needs to be already in
  * the GraphBuffer as 0 and 1 values
 /*
  * Manchester demodulate a bitstream. The bitstream needs to be already in
  * the GraphBuffer as 0 and 1 values


@@ -1420,8 +1819,9 @@ int CmdNorm(const char *Cmd)
 
   if (max != min) {
     for (i = 0; i < GraphTraceLen; ++i) {
 
   if (max != min) {
     for (i = 0; i < GraphTraceLen; ++i) {

-      GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 1000 /
+                       GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /

         (max - min);
         (max - min);

+                               //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work

     }
   }
   RepaintGraphWindow();
     }
   }
   RepaintGraphWindow();


@@ -1436,9 +1836,17 @@ int CmdPlot(const char *Cmd)
 
 int CmdSave(const char *Cmd)
 {
 
 int CmdSave(const char *Cmd)
 {

-  FILE *f = fopen(Cmd, "w");
+  char filename[FILE_PATH_SIZE] = {0x00};
+  int len = 0;
+
+  len = strlen(Cmd);
+  if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+  memcpy(filename, Cmd, len);
+   
+
+  FILE *f = fopen(filename, "w");

   if(!f) {
   if(!f) {

-    PrintAndLog("couldn't open '%s'", Cmd);
+    PrintAndLog("couldn't open '%s'", filename);

     return 0;
   }
   int i;
     return 0;
   }
   int i;


@@ -1479,12 +1887,12 @@ int CmdDirectionalThreshold(const char *Cmd)
 {
        int8_t upThres = param_get8(Cmd, 0);
        int8_t downThres = param_get8(Cmd, 1);
 {
        int8_t upThres = param_get8(Cmd, 0);
        int8_t downThres = param_get8(Cmd, 1);

-  
+

   printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
   printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);

-  
+

   int lastValue = GraphBuffer[0];
   GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
   int lastValue = GraphBuffer[0];
   GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.

-  
+

   for (int i = 1; i < GraphTraceLen; ++i) {
     // Apply first threshold to samples heading up
     if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
   for (int i = 1; i < GraphTraceLen; ++i) {
     // Apply first threshold to samples heading up
     if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)


@@ -1539,39 +1947,54 @@ int CmdZerocrossings(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-static command_t CommandTable[] = 
+static command_t CommandTable[] =

 {
   {"help",          CmdHelp,            1, "This help"},
   {"amp",           CmdAmp,             1, "Amplify peaks"},
   {"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
 {
   {"help",          CmdHelp,            1, "This help"},
   {"amp",           CmdAmp,             1, "Amplify peaks"},
   {"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},

-  {"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},
+       {"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
+       {"askrawdemod",   Cmdaskrawdemod,     1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},

   {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},
   {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},

+  {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},

   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   {"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},
   {"buffclear",     CmdBuffClear,       1, "Clear sample buffer and graph window"},
   {"dec",           CmdDec,             1, "Decimate samples"},
   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   {"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},
   {"buffclear",     CmdBuffClear,       1, "Clear sample buffer and graph window"},
   {"dec",           CmdDec,             1, "Decimate samples"},

-  {"detectclock",   CmdDetectClockRate, 1, "Detect clock rate"},
+       {"detectclock",   CmdDetectClockRate, 1, "Detect ASK clock rate"},

   {"fskdemod",      CmdFSKdemod,        1, "Demodulate graph window as a HID FSK"},
   {"fskdemod",      CmdFSKdemod,        1, "Demodulate graph window as a HID FSK"},

-  {"fskhiddemod",   CmdFSKdemodHID,     1, "Demodulate graph window as a HID FSK using raw"},
-  {"fskiodemod",    CmdFSKdemodIO,      1, "Demodulate graph window as an IO Prox FSK using raw"},
-  {"fskrawdemod",   CmdFSKrawdemod,     1, "[clock rate] [invert] Demodulate graph window from FSK to binary (clock = 64 or 50)(invert = 1 or 0)"},
+  {"fskawiddemod",  CmdFSKdemodAWID,    1, "Demodulate graph window as an AWID FSK tag using raw"},
+  {"fskfcdetect",   CmdFSKfcDetect,     1, "Try to detect the Field Clock of an FSK wave"},
+  {"fskhiddemod",   CmdFSKdemodHID,     1, "Demodulate graph window as a HID FSK tag using raw"},
+  {"fskiodemod",    CmdFSKdemodIO,      1, "Demodulate graph window as an IO Prox tag FSK using raw"},
+  {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
+  {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate graph window as a Paradox FSK tag using raw"},
+  {"fskrawdemod",   CmdFSKrawdemod,     1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},

   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},

-  {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},  
+       {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},

   {"hide",          CmdHide,            1, "Hide graph window"},
   {"hpf",           CmdHpf,             1, "Remove DC offset from trace"},
   {"load",          CmdLoad,            1, "<filename> -- Load trace (to graph window"},
   {"ltrim",         CmdLtrim,           1, "<samples> -- Trim samples from left of trace"},
   {"hide",          CmdHide,            1, "Hide graph window"},
   {"hpf",           CmdHpf,             1, "Remove DC offset from trace"},
   {"load",          CmdLoad,            1, "<filename> -- Load trace (to graph window"},
   {"ltrim",         CmdLtrim,           1, "<samples> -- Trim samples from left of trace"},

+  {"rtrim",         CmdRtrim,           1, "<location to end trace> -- Trim samples from right of trace"},

   {"mandemod",      CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
   {"mandemod",      CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},

+  {"manrawdecode",  Cmdmandecoderaw,    1, "Manchester decode binary stream already in graph buffer"},

   {"manmod",        CmdManchesterMod,   1, "[clock rate] -- Manchester modulate a binary stream"},
   {"manmod",        CmdManchesterMod,   1, "[clock rate] -- Manchester modulate a binary stream"},

-  {"norm",          CmdNorm,            1, "Normalize max/min to +/-500"},
+       {"norm",          CmdNorm,            1, "Normalize max/min to +/-128"},

   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},

+       {"pskclean",      CmdPskClean,        1, "Attempt to clean psk wave"},
+       {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+       {"pskindalademod",CmdIndalaDecode,    1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
+       {"psk1nrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"},
+  {"psk2rawdemod",  CmdPSK2rawDemod,    1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"},

   {"samples",       CmdSamples,         0, "[512 - 40000] -- Get raw samples for graph window"},
   {"samples",       CmdSamples,         0, "[512 - 40000] -- Get raw samples for graph window"},

-  {"tune",          CmdTuneSamples,     0, "Get hw tune samples for graph window"},

   {"save",          CmdSave,            1, "<filename> -- Save trace (from graph window)"},
   {"scale",         CmdScale,           1, "<int> -- Set cursor display scale"},
   {"save",          CmdSave,            1, "<filename> -- Save trace (from graph window)"},
   {"scale",         CmdScale,           1, "<int> -- Set cursor display scale"},

+  {"setdebugmode",  CmdSetDebugMode,    1, "<0|1> -- Turn on or off Debugging Mode for demods"},
+  {"shiftgraphzero",CmdGraphShiftZero,  1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},

   {"threshold",     CmdThreshold,       1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
   {"threshold",     CmdThreshold,       1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},

+       {"dirthreshold",  CmdDirectionalThreshold,   1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
+       {"tune",          CmdTuneSamples,     0, "Get hw tune samples for graph window"},

   {"zerocrossings", CmdZerocrossings,   1, "Count time between zero-crossings"},
   {"zerocrossings", CmdZerocrossings,   1, "Count time between zero-crossings"},

-  {"dirthreshold",  CmdDirectionalThreshold,   1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},

   {NULL, NULL, 0, NULL}
 };
 
   {NULL, NULL, 0, NULL}
 };