X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ae2f73c12dda1a640c3081827b9df0c796617cc1..6bfa18eab4750123d0e24090597b0d4c7bd58daf:/client/cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 1f8b9fcd..9025e8f1 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -11,6 +11,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+//#include <inttypes.h>
 #include <limits.h>
 #include "proxmark3.h"
 #include "data.h"
@@ -20,6 +21,7 @@
 #include "util.h"
 #include "cmdmain.h"
 #include "cmddata.h"
+#include "lfdemod.h"
 
 static int CmdHelp(const char *Cmd);
 
@@ -69,9 +71,7 @@ int CmdAmp(const char *Cmd)
  * Arguments:
  * c : 0 or 1
  */
- //this method is dependant on all highs and lows to be the same(or clipped)  this could be an issue[marshmellow]
- //might be able to use clock to help identify highs and lows with some more tolerance
- //but for now I will try a fuzz factor
+ //this method is dependant on all highs and lows to be the same(or clipped)  this creates issues[marshmellow] it also ignores the clock
 int Cmdaskdemod(const char *Cmd)
 {
   int i;
@@ -90,6 +90,8 @@ int Cmdaskdemod(const char *Cmd)
     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;
@@ -100,9 +102,6 @@ int Cmdaskdemod(const char *Cmd)
   } else {
     GraphBuffer[0] = c;
   }
-  ////13% fuzz [marshmellow]
-  //high=(int)(0.87*high);
-  //low=(int)(0.87*low);
   for (i = 1; i < GraphTraceLen; ++i) {
     /* Transitions are detected at each peak
      * Transitions are either:
@@ -126,6 +125,218 @@ int Cmdaskdemod(const char *Cmd)
   return 0;
 }
 
+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;
+   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 printEM410x(uint64_t id)
+{
+  if (id !=0){
+      uint64_t iii=1;
+      uint64_t id2lo=0; //id2hi=0,
+      uint32_t ii=0;
+      uint32_t i=0;
+      for (ii=5; ii>0;ii--){
+        for (i=0;i<8;i++){
+          id2lo=(id2lo<<1LL)|((id & (iii<<(i+((ii-1)*8))))>>(i+((ii-1)*8)));
+        }
+      }
+      //output em id
+      PrintAndLog("EM TAG ID    : %010llx", id);
+      PrintAndLog("Unique TAG ID: %010llx",  id2lo); //id2hi,
+      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("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+    }  
+    return;
+}
+
+int CmdEm410xDecode(const char *Cmd)
+{
+  uint64_t id=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t i=0;
+  for (i=0;i<GraphTraceLen;++i){
+    BitStream[i]=(uint8_t)(GraphBuffer[i]+128);
+  }
+  id = Em410xDecode(BitStream,i);
+  printEM410x(id);
+  return 0;
+}
+
+int getFromGraphBuf(uint8_t *buff)
+{
+  uint32_t i;
+  for (i=0;i<GraphTraceLen;++i)
+    buff[i]=(uint8_t)(GraphBuffer[i]+128);
+  return i;
+}
+
+//by marshmellow
+//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)
+{
+  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;
+  }
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+
+  int errCnt=0;
+   errCnt = askmandemod(BitStream, &BitLen,&clk,&invert);
+  if (errCnt==-1){  //if fatal error (or -1)
+    PrintAndLog("no data found"); 
+    return 0;
+  } 
+  PrintAndLog("Using Clock: %d  and invert=%d",clk,invert);
+    //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/Manchester decoded bitstream:");
+  // Now output the bitstream to the scrollback by line of 16 bits
+  printBitStream(BitStream,BitLen);
+  uint64_t lo =0;
+  lo = Em410xDecode(BitStream,BitLen);
+  printEM410x(lo);
+  
+  return 0;
+}
+
+//by marshmellow
+//biphase demod = 10 (or 01)=1 / 00 (or 11)=0
+
+
+//by marshmellow
+//manchester demod
+//stricktly take 10 and 01 and convert to 0 and 1
+int Cmdmandecoderaw(const char *Cmd)
+{
+  int i =0;
+  int errCnt=0;
+  int bitnum=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  int high=0,low=0;
+  for (;i<GraphTraceLen;++i){
+    if (GraphBuffer[i]>high) high=GraphBuffer[i];
+    else if(GraphBuffer[i]<low) low=GraphBuffer[i];
+    BitStream[i]=GraphBuffer[i];
+  }
+  if (high>1 || low <0 ){
+    PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
+    return 0;
+  }
+  bitnum=i;
+  errCnt=manrawdemod(BitStream,&bitnum);
+  if (errCnt>=20){
+    PrintAndLog("Too many errors: %d",errCnt);
+    return 0;
+  }
+  PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
+  printBitStream(BitStream,bitnum);
+  if (errCnt==0){
+    //put back in graphbuffer
+    ClearGraph(0);
+    for (i=0; i<bitnum;++i){
+      GraphBuffer[i]=BitStream[i];
+    }  
+    GraphTraceLen=bitnum;
+    RepaintGraphWindow();
+    uint64_t id = 0; 
+    id = Em410xDecode(BitStream,i);
+    printEM410x(id);     
+  }
+  return 0;
+}
+
+//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)
+{
+  uint32_t i;
+  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;
+  }
+  int BitLen = getFromGraphBuf(BitStream);
+  int errCnt=0;
+  errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert);
+  if (errCnt==-1){  //throw away static - allow 1 and -1 (in case of threshold command first)
+    PrintAndLog("no data found"); 
+    return 0;
+  } 
+  PrintAndLog("Using Clock: %d  and invert=%d",clk,invert);
+    //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 < BitLen; ++i){
+    GraphBuffer[i]=BitStream[i];
+  }
+  GraphTraceLen=BitLen;
+  RepaintGraphWindow();
+    
+    //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 0;
+}
+
 int CmdAutoCorr(const char *Cmd)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
@@ -235,10 +446,10 @@ int CmdBitstream(const char *Cmd)
       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;
+  //    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();
@@ -271,147 +482,13 @@ int CmdDetectClockRate(const char *Cmd)
   return 0;
 }
 
-//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)
+//by marshmellow
+//fsk raw demod and print binary
+//takes 2 arguments - Clock and invert
+//defaults: clock = 50, invert=0
+int CmdFSKrawdemod(const char *Cmd)
 {
-  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)
-{
-  if (f >= UINT_MAX) return UINT_MAX;
-  return (uint32_t) (f + (float)0.5);
-}
-//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;
-}
-// 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)
-{
-  uint32_t num = 0;
-  for(int i = 0 ; i < numbits ; i++)
-  {
-    num = (num << 1) | (*src);
-    src++;
-  }
-  return num;
-}
-
-//fsk demod and print binary
-int CmdFSKdemod(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
   uint8_t rfLen = 50;
   uint8_t invert=0;
@@ -428,194 +505,117 @@ int CmdFSKdemod(const char *Cmd)
     invert=param_get8(Cmd,1);
   }
   PrintAndLog("Args invert: %d \nClock:%d",invert,rfLen);
- 
-  size_t size  = fskdemod(rfLen,invert); 
+  uint32_t i=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+  int size  = fskdemod(BitStream,BitLen,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
-
-  for (int i = 2; i < (size-16); i+=16) {
-    PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
-      GraphBuffer[i],
-      GraphBuffer[i+1],
-      GraphBuffer[i+2],
-      GraphBuffer[i+3],
-      GraphBuffer[i+4],
-      GraphBuffer[i+5],
-      GraphBuffer[i+6],
-      GraphBuffer[i+7],
-      GraphBuffer[i+8],
-      GraphBuffer[i+9],
-      GraphBuffer[i+10],
-      GraphBuffer[i+11],
-      GraphBuffer[i+12],
-      GraphBuffer[i+13],
-      GraphBuffer[i+14],
-      GraphBuffer[i+15]);
+  ClearGraph(0);
+  for (i=0;i<size;++i){
+    GraphBuffer[i]=BitStream[i];
   }
-  ClearGraph(1);
+  GraphTraceLen=size;
+  RepaintGraphWindow();
+  
+  // 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);
   return 0;
 }
 
+//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
-  //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;
 
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
   //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 size  = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo); 
+  if (size<0){
+    PrintAndLog("Error demoding fsk");
+    return 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++;
       }
-
-      //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;
-          }
-        }
+      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);
       }
-      // reset
-      hi2 = hi = lo = 0;
-      numshifts = 0;
-    }else
-    {
-      idx++;
     }
+    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);
+    return 0;
   }
-  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
-    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
-
-    for (int i = 2; i < (size-16); i+=16) {
-      PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
-        GraphBuffer[i],
-        GraphBuffer[i+1],
-        GraphBuffer[i+2],
-        GraphBuffer[i+3],
-        GraphBuffer[i+4],
-        GraphBuffer[i+5],
-        GraphBuffer[i+6],
-        GraphBuffer[i+7],
-        GraphBuffer[i+8],
-        GraphBuffer[i+9],
-        GraphBuffer[i+10],
-        GraphBuffer[i+11],
-        GraphBuffer[i+12],
-        GraphBuffer[i+13],
-        GraphBuffer[i+14],
-        GraphBuffer[i+15]);
-    }   
-  }
-  ClearGraph(1);
   return 0;
 }
 
-
+//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
-  uint8_t rfLen = 64;
-  uint8_t invert=1;
-  size_t idx=0; 
-  uint8_t testMax=0;
+  int idx=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];
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+  //get binary from fsk wave
+  idx = IOdemodFSK(BitStream,BitLen); 
+  if (idx<0){
+    PrintAndLog("Error demoding fsk");
+    return 0;
+  }
+  if (idx==0){
+    PrintAndLog("IO Prox Data not found - FSK Data:");
+    printBitStream(BitStream,92);
   }
-  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){
     //Index map
     //0           10          20          30          40          50          60
     //|           |           |           |           |           |           |
@@ -625,67 +625,25 @@ int CmdFSKdemodIO(const char *Cmd)
     //
     //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 >= (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
-      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
-
-      for (int i = 2; i < (size-16); i+=16) {
-        PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
-          GraphBuffer[i],
-          GraphBuffer[i+1],
-          GraphBuffer[i+2],
-          GraphBuffer[i+3],
-          GraphBuffer[i+4],
-          GraphBuffer[i+5],
-          GraphBuffer[i+6],
-          GraphBuffer[i+7],
-          GraphBuffer[i+8],
-          GraphBuffer[i+9],
-          GraphBuffer[i+10],
-          GraphBuffer[i+11],
-          GraphBuffer[i+12],
-          GraphBuffer[i+13],
-          GraphBuffer[i+14],
-          GraphBuffer[i+15]);
-      }   
-    }
-  }
-  ClearGraph(1);
+        
+  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",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",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",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",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",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); 
+  short version = bytebits_to_byte(BitStream+idx+27,8); //14,4
+  uint8_t facilitycode = bytebits_to_byte(BitStream+idx+19,8) ;
+  uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
+  
+  PrintAndLog("XSF(%02d)%02x:%d (%08x%08x)",version,facilitycode,number,code,code2);    
   return 0;
 }
-/*
-int CmdFSKdemodHIDold(const char *Cmd)//not put in commands yet //old CmdFSKdemod needs updating
+int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
 {
   static const int LowTone[]  = {
     1,  1,  1,  1,  1, -1, -1, -1, -1, -1,
@@ -803,7 +761,7 @@ int CmdFSKdemodHIDold(const char *Cmd)//not put in commands yet //old CmdFSKdemo
   PrintAndLog("hex: %08x %08x", hi, lo);
   return 0;
 }
-*/
+
 int CmdGrid(const char *Cmd)
 {
   sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
@@ -902,24 +860,56 @@ int CmdSamples(const char *Cmd)
 
 int CmdTuneSamples(const char *Cmd)
 {
-  int cnt = 0;
-  int n = 255;
-  uint8_t got[255];
-
-  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;
-  }
+	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("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
-  PrintAndLog("\n");
-  GraphTraceLen = n;
-  RepaintGraphWindow();
-  return 0;
+	PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
+	PrintAndLog("\n");
+	GraphTraceLen = 256;
+	ShowGraphWindow();
+
+	return 0;
 }
 
+
 int CmdLoad(const char *Cmd)
 {
   FILE *f = fopen(Cmd, "r");
@@ -1329,15 +1319,18 @@ 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"},
+  {"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},
+  {"askrawdemod",   Cmdaskrawdemod,     1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"},
   {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},
   {"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"},
-  {"fskdemod",      CmdFSKdemod,        1, "[clock rate] [invert] Demodulate graph window from FSK to binary (clock = 64 or 50)(invert = 1 or 0)"},
-  {"fskdemodhid",   CmdFSKdemodHID,     1, "Demodulate graph window as a HID FSK"},
-  {"fskdemodio",    CmdFSKdemodIO,     1, "Demodulate graph window as an IO Prox 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)"},
   {"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"},  
   {"hide",          CmdHide,            1, "Hide graph window"},
@@ -1345,6 +1338,7 @@ static command_t CommandTable[] =
   {"load",          CmdLoad,            1, "<filename> -- Load trace (to graph window"},
   {"ltrim",         CmdLtrim,           1, "<samples> -- Trim samples from left of trace"},
   {"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"},
   {"norm",          CmdNorm,            1, "Normalize max/min to +/-500"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},