adjust ask/biphase handling - more complete

also added XL EM410x formats

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 16c428554a348be12ee5f648afae634243d74144..2a5573d1cf156a6125c872bc16f19072fa5b8020 100644 (file)
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -622,7 +622,7 @@ static void askSimBit(uint8_t c, int *n, uint8_t clock, uint8_t manchester)
     uint8_t *dest = BigBuf_get_addr();
     uint8_t halfClk = clock/2;
     // c = current bit 1 or 0
     uint8_t *dest = BigBuf_get_addr();
     uint8_t halfClk = clock/2;
     // c = current bit 1 or 0

-    if (manchester){
+    if (manchester==1){

         memset(dest+(*n), c, halfClk);
         memset(dest+(*n) + halfClk, c^1, halfClk);
     } else {
         memset(dest+(*n), c, halfClk);
         memset(dest+(*n) + halfClk, c^1, halfClk);
     } else {


@@ -631,26 +631,54 @@ static void askSimBit(uint8_t c, int *n, uint8_t clock, uint8_t manchester)
     *n += clock;        
 }
 
     *n += clock;        
 }
 

+static void biphaseSimBit(uint8_t c, int *n, uint8_t clock, uint8_t *phase)
+{
+    uint8_t *dest = BigBuf_get_addr();
+    uint8_t halfClk = clock/2;
+    if (c){
+        memset(dest+(*n), c ^ 1 ^ *phase, halfClk);
+        memset(dest+(*n) + halfClk, c ^ *phase, halfClk);        
+    } else {
+        memset(dest+(*n), c ^ *phase, clock);
+        *phase ^= 1;
+    }
+
+}
+

 // args clock, ask/man or askraw, invert, transmission separator
 void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
 {
     int ledcontrol = 1;
     int n=0, i=0;
     uint8_t clk = (arg1 >> 8) & 0xFF;
 // args clock, ask/man or askraw, invert, transmission separator
 void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
 {
     int ledcontrol = 1;
     int n=0, i=0;
     uint8_t clk = (arg1 >> 8) & 0xFF;

-    uint8_t manchester = arg1 & 1;
+    uint8_t encoding = arg1 & 1;

     uint8_t separator = arg2 & 1;
     uint8_t invert = (arg2 >> 8) & 1;
     uint8_t separator = arg2 & 1;
     uint8_t invert = (arg2 >> 8) & 1;

-    for (i=0; i<size; i++){
-        askSimBit(BitStream[i]^invert, &n, clk, manchester);
-    }
-    if (manchester==0 && BitStream[0]==BitStream[size-1]){ //run a second set inverted (for biphase phase)
+
+    if (encoding==2){  //biphase
+        uint8_t phase=0;
+        for (i=0; i<size; i++){
+            biphaseSimBit(BitStream[i]^invert, &n, clk, &phase);
+        }
+        if (BitStream[0]==BitStream[size-1]){ //run a second set inverted to keep phase in check
+            for (i=0; i<size; i++){
+                biphaseSimBit(BitStream[i]^invert, &n, clk, &phase);
+            }
+        }
+    } else {  // ask/manchester || ask/raw

         for (i=0; i<size; i++){
         for (i=0; i<size; i++){

-            askSimBit(BitStream[i]^invert^1, &n, clk, manchester);
+            askSimBit(BitStream[i]^invert, &n, clk, encoding);
+        }
+        if (encoding==0 && BitStream[0]==BitStream[size-1]){ //run a second set inverted (for biphase phase)
+            for (i=0; i<size; i++){
+                askSimBit(BitStream[i]^invert^1, &n, clk, encoding);
+            }    

         }    
     }
         }    
     }

+    

     if (separator==1) Dbprintf("sorry but separator option not yet available"); 
 
     if (separator==1) Dbprintf("sorry but separator option not yet available"); 
 

-    Dbprintf("Simulating with clk: %d, invert: %d, manchester: %d, separator: %d, n: %d",clk, invert, manchester, separator, n);
+    Dbprintf("Simulating with clk: %d, invert: %d, encoding: %d, separator: %d, n: %d",clk, invert, encoding, separator, n);

     //DEBUG
     //Dbprintf("First 32:");
     //uint8_t *dest = BigBuf_get_addr();
     //DEBUG
     //Dbprintf("First 32:");
     //uint8_t *dest = BigBuf_get_addr();


@@ -817,8 +845,9 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
     uint8_t *dest = BigBuf_get_addr();
 
 {
     uint8_t *dest = BigBuf_get_addr();
 

-       size_t size=0, idx=0;
+    size_t size=0, idx=0;

     int clk=0, invert=0, errCnt=0, maxErr=20;
     int clk=0, invert=0, errCnt=0, maxErr=20;

+    uint32_t hi=0;

     uint64_t lo=0;
     // Configure to go in 125Khz listen mode
     LFSetupFPGAForADC(95, true);
     uint64_t lo=0;
     // Configure to go in 125Khz listen mode
     LFSetupFPGAForADC(95, true);


@@ -828,24 +857,34 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
         WDT_HIT();
         if (ledcontrol) LED_A_ON();
 
         WDT_HIT();
         if (ledcontrol) LED_A_ON();
 

-               DoAcquisition_default(-1,true);
-               size  = BigBuf_max_traceLen();
+        DoAcquisition_default(-1,true);
+        size  = BigBuf_max_traceLen();

         //Dbprintf("DEBUG: Buffer got");
         //Dbprintf("DEBUG: Buffer got");

-               //askdemod and manchester decode
-               errCnt = askmandemod(dest, &size, &clk, &invert, maxErr);
+        //askdemod and manchester decode
+        errCnt = askmandemod(dest, &size, &clk, &invert, maxErr);

         //Dbprintf("DEBUG: ASK Got");
         WDT_HIT();
 
         if (errCnt>=0){
         //Dbprintf("DEBUG: ASK Got");
         WDT_HIT();
 
         if (errCnt>=0){

-                       lo = Em410xDecode(dest, &size, &idx);
+            errCnt = Em410xDecode(dest, &size, &idx, &hi, &lo);

             //Dbprintf("DEBUG: EM GOT");
             //Dbprintf("DEBUG: EM GOT");

-            if (lo>0){
-                               Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
-                                   (uint32_t)(lo>>32),
-                                   (uint32_t)lo,
-                                   (uint32_t)(lo&0xFFFF),
-                                   (uint32_t)((lo>>16LL) & 0xFF),
-                                   (uint32_t)(lo & 0xFFFFFF));
+            if (errCnt){
+                if (size>64){
+                    Dbprintf("EM XL TAG ID: %06x%08x%08x - (%05d_%03d_%08d)",
+                        hi,
+                        (uint32_t)(lo>>32),
+                        (uint32_t)lo,
+                        (uint32_t)(lo&0xFFFF),
+                        (uint32_t)((lo>>16LL) & 0xFF),
+                        (uint32_t)(lo & 0xFFFFFF));
+                } else {
+                    Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
+                        (uint32_t)(lo>>32),
+                        (uint32_t)lo,
+                        (uint32_t)(lo&0xFFFF),
+                        (uint32_t)((lo>>16LL) & 0xFF),
+                        (uint32_t)(lo & 0xFFFFFF));
+                }

             }
             if (findone){
                 if (ledcontrol)        LED_A_OFF();
             }
             if (findone){
                 if (ledcontrol)        LED_A_OFF();

diff --git a/client/cmddata.c b/client/cmddata.c
index 356bfab3f715a55548c194903188ad9f866657cf..a3d58523ff2d610540eedb31d6aa497b4d458e96 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -260,9 +260,9 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen)
 }
 //by marshmellow
 //print 64 bit EM410x ID in multiple formats
 }
 //by marshmellow
 //print 64 bit EM410x ID in multiple formats

-void printEM410x(uint64_t id)
+void printEM410x(uint32_t hi, uint64_t id)

 {
 {

-  if (id !=0){
+  if (id || hi){

     uint64_t iii=1;
     uint64_t id2lo=0;
     uint32_t ii=0;
     uint64_t iii=1;
     uint64_t id2lo=0;
     uint32_t ii=0;


@@ -272,16 +272,21 @@ void printEM410x(uint64_t id)
         id2lo=(id2lo<<1LL) | ((id & (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
-    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("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+    if (hi){
+      //output 88 bit em id
+      PrintAndLog("EM TAG ID    : %06x%016llx", hi, id);
+    } else{
+      //output 40 bit em id
+      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("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));  
+    }

   }
   return;
 }
   }
   return;
 }


@@ -292,9 +297,6 @@ void printEM410x(uint64_t id)
 //prints binary found and saves in graphbuffer for further commands
 int CmdAskEM410xDemod(const char *Cmd)
 {
 //prints binary found and saves in graphbuffer for further commands
 int CmdAskEM410xDemod(const char *Cmd)
 {

-  int invert=0;
-  int clk=0;
-  int maxErr=100;

   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data askem410xdemod [clock] <0|1> [maxError]");
   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data askem410xdemod [clock] <0|1> [maxError]");


@@ -307,50 +309,21 @@ int CmdAskEM410xDemod(const char *Cmd)
     PrintAndLog("          : data askem410xdemod 32 1   = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data askem410xdemod 1      = demod an EM410x Tag ID from GraphBuffer while inverting data");
     PrintAndLog("          : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
     PrintAndLog("          : data askem410xdemod 32 1   = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data askem410xdemod 1      = demod an EM410x Tag ID from GraphBuffer while inverting data");
     PrintAndLog("          : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");

-
-    return 0;
-  }
-
-
-  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
-  sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
-  if (invert != 0 && invert != 1) {
-    PrintAndLog("Invalid argument: %s", Cmd);
-    return 0;
-  }
-  size_t BitLen = getFromGraphBuf(BitStream);
-
-  if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
-  if (BitLen==0) return 0;
-  int errCnt=0;
-  errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
-  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);
+  int ans = ASKmanDemod(Cmd, FALSE, FALSE);
+  if (!ans) return 0;

 
 

-  //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
-  setDemodBuf(BitStream,BitLen,0);
-  //printDemodBuff();

   uint64_t lo =0;
   uint64_t lo =0;

+  uint32_t hi =0;

   size_t idx=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 (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, &hi, &lo)){

     if (g_debugMode){
     if (g_debugMode){

-      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen);

       printDemodBuff();
     }
     PrintAndLog("EM410x pattern found: ");
       printDemodBuff();
     }
     PrintAndLog("EM410x pattern found: ");

-    if (BitLen > 64) PrintAndLog("\nWarning! Length not what is expected - Length: %d bits\n",BitLen);
-    printEM410x(lo);
+    printEM410x(hi, lo);

     return 1;
   }
   return 0;
     return 1;
   }
   return 0;


@@ -381,21 +354,21 @@ int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
     if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
     return 0;
   }
     if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
     return 0;
   }

-  if (verbose) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+  if (verbose || g_debugMode) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);

 
   //output
   if (errCnt>0){
 
   //output
   if (errCnt>0){

-    if (verbose) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+    if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);

   }
   }

-  if (verbose) PrintAndLog("ASK/Manchester decoded bitstream:");
+  if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:");

   // Now output the bitstream to the scrollback by line of 16 bits
   setDemodBuf(BitStream,BitLen,0);
   // Now output the bitstream to the scrollback by line of 16 bits
   setDemodBuf(BitStream,BitLen,0);

-  if (verbose) printDemodBuff();
+  if (verbose || g_debugMode) printDemodBuff();

   uint64_t lo =0;
   uint64_t lo =0;

+  uint32_t hi =0;

   size_t idx=0;
   if (emSearch){
   size_t idx=0;
   if (emSearch){

-    lo = Em410xDecode(BitStream, &BitLen, &idx);
-    if (lo>0){
+    if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){

       //set GraphBuffer for clone or sim command
       setDemodBuf(BitStream, BitLen, idx);
       if (g_debugMode){
       //set GraphBuffer for clone or sim command
       setDemodBuf(BitStream, BitLen, idx);
       if (g_debugMode){


@@ -403,7 +376,7 @@ int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
         printDemodBuff();
       }
       if (verbose) PrintAndLog("EM410x pattern found: ");
         printDemodBuff();
       }
       if (verbose) PrintAndLog("EM410x pattern found: ");

-      if (verbose) printEM410x(lo);
+      if (verbose) printEM410x(hi, lo);

       return 1;
     }
   }
       return 1;
     }
   }


@@ -473,13 +446,13 @@ int Cmdmandecoderaw(const char *Cmd)
   printBitStream(BitStream, size);
   if (errCnt==0){
     uint64_t id = 0;
   printBitStream(BitStream, size);
   if (errCnt==0){
     uint64_t id = 0;

+    uint32_t hi = 0;

     size_t idx=0;
     size_t idx=0;

-    id = Em410xDecode(BitStream, &size, &idx);
-    if (id>0){
+    if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){

       //need to adjust to set bitstream back to manchester encoded data
       //setDemodBuf(BitStream, size, idx);
 
       //need to adjust to set bitstream back to manchester encoded data
       //setDemodBuf(BitStream, size, idx);
 

-      printEM410x(id);
+      printEM410x(hi, id);

     }
   }
   return 1;
     }
   }
   return 1;


@@ -497,53 +470,52 @@ int Cmdmandecoderaw(const char *Cmd)
 //    width waves vs small width waves to help the decode positioning) or askbiphdemod
 int CmdBiphaseDecodeRaw(const char *Cmd)
 {
 //    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;
        size_t size=0;

-       int offset=0;
-       int invert=0;
-       int high=0, low=0;
+       int offset=0, invert=0, maxErr=20, errCnt=0;

        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {

-               PrintAndLog("Usage:  data biphaserawdecode [offset] <invert>");
-               PrintAndLog("     Converts 10 or 01 to 0 and 11 or 00 to 1");
+               PrintAndLog("Usage:  data biphaserawdecode [offset] [invert] [maxErr]");
+               PrintAndLog("     Converts 10 or 01 to 1 and 11 or 00 to 0");

                PrintAndLog("     --must have binary sequence in demodbuffer (run data askrawdemod first)");
                PrintAndLog("");
                PrintAndLog("     [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
                PrintAndLog("     [invert <0|1>], set to 1 to invert output");
                PrintAndLog("     --must have binary sequence in demodbuffer (run data askrawdemod first)");
                PrintAndLog("");
                PrintAndLog("     [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
                PrintAndLog("     [invert <0|1>], set to 1 to invert output");

+               PrintAndLog("     [maxErr int],   set max errors tolerated - default=20");

                PrintAndLog("");
                PrintAndLog("    sample: data biphaserawdecode     = decode biphase bitstream from the demodbuffer");
                PrintAndLog("    sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
                return 0;
        }
                PrintAndLog("");
                PrintAndLog("    sample: data biphaserawdecode     = decode biphase bitstream from the demodbuffer");
                PrintAndLog("    sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
                return 0;
        }

-       sscanf(Cmd, "%i %i", &offset, &invert);
-       if (DemodBufferLen==0) return 0;
-       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");
+       sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
+       if (DemodBufferLen==0){
+               PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");

                return 0;
        }
                return 0;
        }

-       size=i;
+       uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       memcpy(BitStream, DemodBuffer, DemodBufferLen); 
+       size = DemodBufferLen;

        errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
        errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);

-       if (errCnt>=20){
+       if (errCnt<0){
+               PrintAndLog("Error during decode:%d", errCnt);
+               return 0;
+       }
+       if (errCnt>maxErr){

                PrintAndLog("Too many errors attempting to decode: %d",errCnt);
                return 0;
        }
                PrintAndLog("Too many errors attempting to decode: %d",errCnt);
                return 0;
        }

-       PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+
+       if (errCnt>0){
+               PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt);
+       }
+       PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);

        printBitStream(BitStream, size);
        printBitStream(BitStream, size);

-       PrintAndLog("\nif bitstream does not look right try offset=1");
-  if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1);  //remove first bit from raw demod
+       
+       if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset);  //remove first bit from raw demod

        return 1;
 }
 
 // set demod buffer back to raw after biphase demod
        return 1;
 }
 
 // set demod buffer back to raw after biphase demod

-void setBiphaseDemodBuf(uint8_t *BitStream, size_t size)
+void setBiphasetoRawDemodBuf(uint8_t *BitStream, size_t size)

 {
   uint8_t rawStream[512]={0x00};
   size_t i=0;
 {
   uint8_t rawStream[512]={0x00};
   size_t i=0;


@@ -565,6 +537,7 @@ void setBiphaseDemodBuf(uint8_t *BitStream, size_t size)
   setDemodBuf(rawStream,i,0);
   return;
 }
   setDemodBuf(rawStream,i,0);
   return;
 }

+

 //by marshmellow
 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
 //attempts to demodulate ask only
 //by marshmellow
 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
 //attempts to demodulate ask only


@@ -579,7 +552,7 @@ int ASKrawDemod(const char *Cmd, bool verbose)
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &amp);
   if (invert != 0 && invert != 1) {
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &amp);
   if (invert != 0 && invert != 1) {

-    if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
+    if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd);

     return 0;
   }
   if (clk==1){
     return 0;
   }
   if (clk==1){


@@ -592,20 +565,20 @@ int ASKrawDemod(const char *Cmd, bool verbose)
   int errCnt=0;
   errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
   if (errCnt==-1||BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
   int errCnt=0;
   errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
   if (errCnt==-1||BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)

-    if (verbose) PrintAndLog("no data found");
-    if (g_debugMode==1 && verbose) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+    if (verbose || g_debugMode) PrintAndLog("no data found");
+    if (g_debugMode) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);

     return 0;
   }
     return 0;
   }

-  if (verbose) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
+  if (verbose || g_debugMode) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);

   
   //move BitStream back to DemodBuffer
   setDemodBuf(BitStream,BitLen,0);
 
   //output
   
   //move BitStream back to DemodBuffer
   setDemodBuf(BitStream,BitLen,0);
 
   //output

-  if (errCnt>0 && verbose){
+  if (errCnt>0 && (verbose || g_debugMode)){

     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
   }
     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
   }

-  if (verbose){
+  if (verbose || g_debugMode){

     PrintAndLog("ASK demoded bitstream:");
     // Now output the bitstream to the scrollback by line of 16 bits
     printBitStream(BitStream,BitLen);
     PrintAndLog("ASK demoded bitstream:");
     // Now output the bitstream to the scrollback by line of 16 bits
     printBitStream(BitStream,BitLen);


@@ -613,6 +586,71 @@ int ASKrawDemod(const char *Cmd, bool verbose)
   return 1;
 }
 
   return 1;
 }
 

+//by marshmellow
+// - ASK Demod then Biphase decode GraphBuffer samples
+int ASKbiphaseDemod(const char *Cmd, bool verbose)
+{
+       //ask raw demod GraphBuffer first
+       int offset=0, clk=0, invert=0, maxErr=0, ans=0;
+       ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
+       if (ans>0)
+               ans = ASKrawDemod(Cmd+2, FALSE);
+       else
+               ans = ASKrawDemod(Cmd, FALSE);
+       if (!ans) {
+               if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans);
+               return 0;
+       }
+
+       //attempt to Biphase decode DemodBuffer
+       size_t size = DemodBufferLen;
+       uint8_t BitStream[MAX_DEMOD_BUF_LEN];
+       memcpy(BitStream, DemodBuffer, DemodBufferLen); 
+
+       int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
+       if (errCnt < 0){
+               if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
+               return 0;
+       } 
+       if (errCnt > maxErr) {
+               if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);
+               return 0;
+       }
+       //success set DemodBuffer and return
+       setDemodBuf(BitStream, size, 0);
+       if (g_debugMode || verbose){
+               PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+               printDemodBuff();
+       }
+       return 1;
+}
+//by marshmellow - see ASKbiphaseDemod
+int Cmdaskbiphdemod(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
+    PrintAndLog("Usage:  data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>");
+    PrintAndLog("     [offset], offset to begin biphase, default=0");
+    PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
+    PrintAndLog("     <invert>, 1 to invert output");
+    PrintAndLog("     [set maximum allowed errors], default = 100");
+    PrintAndLog("     <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
+    PrintAndLog("     NOTE: <invert>  can be entered as second or third argument");
+    PrintAndLog("     NOTE: <amplify> can be entered as first, second or last argument");
+    PrintAndLog("     NOTE: any other arg must have previous args set to work");
+    PrintAndLog("");
+    PrintAndLog("    sample: data rawdemod ab            = demod an ask/biph tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod ab a          = demod an ask/biph tag from GraphBuffer, amplified");
+    PrintAndLog("          : data rawdemod ab 1 32       = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
+    PrintAndLog("          : data rawdemod ab 0 32 1     = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
+    PrintAndLog("          : data rawdemod ab 0 1        = demod an ask/biph tag from GraphBuffer while inverting data");
+    PrintAndLog("          : data rawdemod ab 0 64 1 0   = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+    PrintAndLog("          : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+    return 0;
+  }
+  return ASKbiphaseDemod(Cmd, TRUE);
+}
+

 //by marshmellow
 //attempts to demodulate and identify a G_Prox_II verex/chubb card
 //WARNING: if it fails during some points it will destroy the DemodBuffer data
 //by marshmellow
 //attempts to demodulate and identify a G_Prox_II verex/chubb card
 //WARNING: if it fails during some points it will destroy the DemodBuffer data


@@ -620,32 +658,16 @@ int ASKrawDemod(const char *Cmd, bool verbose)
 //if successful it will push askraw data back to demod buffer ready for emulation
 int CmdG_Prox_II_Demod(const char *Cmd)
 {
 //if successful it will push askraw data back to demod buffer ready for emulation
 int CmdG_Prox_II_Demod(const char *Cmd)
 {

-  int ans = ASKrawDemod(Cmd, FALSE);
-  if (ans <= 0) {
-    if (g_debugMode) PrintAndLog("Error AskrawDemod: %d",ans);
-    return 0; //ans;
+  if (!ASKbiphaseDemod(Cmd, FALSE)){
+    if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+    return 0;

   }
   size_t size = DemodBufferLen;
   }
   size_t size = DemodBufferLen;

-  ans = BiphaseRawDecode(DemodBuffer, &size, 0, 0); 
-  if (ans !=0) {
-    if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
-    return 0; //ans;
-  }

   //call lfdemod.c demod for gProxII
   //call lfdemod.c demod for gProxII

-  ans = gProxII_Demod(DemodBuffer, &size);
+  int ans = gProxII_Demod(DemodBuffer, &size);

   if (ans < 0){
   if (ans < 0){

-    if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
-    //try biphase again
-    ans = BiphaseRawDecode(DemodBuffer, &size, 1, 0); 
-    if (ans != 0) {
-      if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
-      return 0;//ans;
-    }
-    ans = gProxII_Demod(DemodBuffer, &size);
-    if (ans < 0) {
-      if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
-      return ans;
-    }
+    if (g_debugMode) PrintAndLog("Error gProxII_Demod");
+    return 0;

   }
   //got a good demod
   uint32_t ByteStream[65] = {0x00};
   }
   //got a good demod
   uint32_t ByteStream[65] = {0x00};


@@ -659,7 +681,7 @@ int CmdG_Prox_II_Demod(const char *Cmd)
       //spacer bit - should be 0
       if (DemodBuffer[startIdx+idx] != 0) {
         if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
       //spacer bit - should be 0
       if (DemodBuffer[startIdx+idx] != 0) {
         if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);

-        return -1;
+        return 0;

       }
       continue;
     } 
       }
       continue;
     } 


@@ -703,7 +725,7 @@ int CmdG_Prox_II_Demod(const char *Cmd)
     PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
   }
   PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
     PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
   }
   PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);

-  setBiphaseDemodBuf(DemodBuffer+ans, 96);
+  setDemodBuf(DemodBuffer+ans, 96, 0);

   return 1;
 }
 
   return 1;
 }
 


@@ -1950,12 +1972,14 @@ int CmdRawDemod(const char *Cmd)
 
        if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
                PrintAndLog("Usage:  data rawdemod [modulation] <help>|<options>");
 
        if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
                PrintAndLog("Usage:  data rawdemod [modulation] <help>|<options>");

-               PrintAndLog("   [modulation] as 2 char, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");           
+               PrintAndLog("   [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");           
+               PrintAndLog("         'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");

                PrintAndLog("   <help> as 'h', prints the help for the specific modulation");   
                PrintAndLog("   <options> see specific modulation help for optional parameters");                               
                PrintAndLog("");
                PrintAndLog("    sample: data rawdemod fs h         = print help for ask/raw demod");
                PrintAndLog("          : data rawdemod fs           = demod GraphBuffer using: fsk - autodetect");
                PrintAndLog("   <help> as 'h', prints the help for the specific modulation");   
                PrintAndLog("   <options> see specific modulation help for optional parameters");                               
                PrintAndLog("");
                PrintAndLog("    sample: data rawdemod fs h         = print help for ask/raw demod");
                PrintAndLog("          : data rawdemod fs           = demod GraphBuffer using: fsk - autodetect");

+               PrintAndLog("          : data rawdemod ab           = demod GraphBuffer using: ask/biphase - autodetect");

                PrintAndLog("          : data rawdemod am           = demod GraphBuffer using: ask/manchester - autodetect");
                PrintAndLog("          : data rawdemod ar           = demod GraphBuffer using: ask/raw - autodetect");
                PrintAndLog("          : data rawdemod nr           = demod GraphBuffer using: nrz/direct - autodetect");
                PrintAndLog("          : data rawdemod am           = demod GraphBuffer using: ask/manchester - autodetect");
                PrintAndLog("          : data rawdemod ar           = demod GraphBuffer using: ask/raw - autodetect");
                PrintAndLog("          : data rawdemod nr           = demod GraphBuffer using: nrz/direct - autodetect");


@@ -1967,6 +1991,8 @@ int CmdRawDemod(const char *Cmd)
        int ans = 0;
        if (cmdp == 'f' && cmdp2 == 's'){
                ans = CmdFSKrawdemod(Cmd+3);
        int ans = 0;
        if (cmdp == 'f' && cmdp2 == 's'){
                ans = CmdFSKrawdemod(Cmd+3);

+       } else if(cmdp == 'a' && cmdp2 == 'b'){
+               ans = Cmdaskbiphdemod(Cmd+3);

        } else if(cmdp == 'a' && cmdp2 == 'm'){
                ans = Cmdaskmandemod(Cmd+3);
        } else if(cmdp == 'a' && cmdp2 == 'r'){
        } else if(cmdp == 'a' && cmdp2 == 'm'){
                ans = Cmdaskmandemod(Cmd+3);
        } else if(cmdp == 'a' && cmdp2 == 'r'){

diff --git a/client/cmddata.h b/client/cmddata.h
index 80fa5a9b59297ebfe42012b6f77a4fad0f4f7e7f..831d35f3737671efa8c8ce37802dbbb3b3fbf383 100644 (file)
--- a/client/cmddata.h
+++ b/client/cmddata.h
@@ -63,6 +63,7 @@ int CmdThreshold(const char *Cmd);
 int CmdDirectionalThreshold(const char *Cmd);
 int CmdZerocrossings(const char *Cmd);
 int CmdIndalaDecode(const char *Cmd);
 int CmdDirectionalThreshold(const char *Cmd);
 int CmdZerocrossings(const char *Cmd);
 int CmdIndalaDecode(const char *Cmd);

+int ASKbiphaseDemod(const char *Cmd, bool verbose);

 int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch);
 int ASKrawDemod(const char *Cmd, bool verbose);
 int FSKrawDemod(const char *Cmd, bool verbose);
 int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch);
 int ASKrawDemod(const char *Cmd, bool verbose);
 int FSKrawDemod(const char *Cmd, bool verbose);

diff --git a/client/cmdlf.c b/client/cmdlf.c
index dddf3dee773f8d3e4cd34545615814c01dfc7076..039a33d55640e6c602e6dd6a600a326816e6bf2a 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -570,12 +570,13 @@ int usage_lf_simfsk(void)
 int usage_lf_simask(void)
 {
   //print help
 int usage_lf_simask(void)
 {
   //print help

-  PrintAndLog("Usage: lf simask [c <clock>] [i] [m|r] [s] [d <raw hex to sim>]");
+  PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");

   PrintAndLog("Options:        ");
   PrintAndLog("       h              This help");
   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
   PrintAndLog("       i              invert data");
   PrintAndLog("Options:        ");
   PrintAndLog("       h              This help");
   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
   PrintAndLog("       i              invert data");

-  PrintAndLog("       m              sim ask/manchester");
+  PrintAndLog("       b              sim ask/biphase");
+  PrintAndLog("       m              sim ask/manchester - Default");

   PrintAndLog("       r              sim ask/raw");
   PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
   PrintAndLog("       r              sim ask/raw");
   PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");


@@ -703,7 +704,7 @@ int CmdLFaskSim(const char *Cmd)
 {
   //autodetect clock from Graphbuffer if using demod buffer
   //will need clock, invert, manchester/raw as m or r, separator as s, and bitstream
 {
   //autodetect clock from Graphbuffer if using demod buffer
   //will need clock, invert, manchester/raw as m or r, separator as s, and bitstream

-  uint8_t manchester = 1, separator = 0;
+  uint8_t encoding = 1, separator = 0;

   //char cmdp = Cmd[0], par3='m', par4=0;
   uint8_t clk=0, invert=0;
   bool errors = FALSE;
   //char cmdp = Cmd[0], par3='m', par4=0;
   uint8_t clk=0, invert=0;
   bool errors = FALSE;


@@ -725,12 +726,16 @@ int CmdLFaskSim(const char *Cmd)
       errors |= param_getdec(Cmd,cmdp+1,&clk);
       cmdp+=2;
       break;
       errors |= param_getdec(Cmd,cmdp+1,&clk);
       cmdp+=2;
       break;

+    case 'b':
+      encoding=2; //biphase
+      cmdp++;
+      break;

     case 'm':
     case 'm':

-      manchester=1;
+      encoding=1;

       cmdp++;
       break;
     case 'r':
       cmdp++;
       break;
     case 'r':

-      manchester=0;
+      encoding=0;

       cmdp++;
       break;
     case 's':
       cmdp++;
       break;
     case 's':


@@ -771,10 +776,10 @@ int CmdLFaskSim(const char *Cmd)
     setDemodBuf(data, dataLen, 0);
   }
   if (clk == 0) clk = 64;
     setDemodBuf(data, dataLen, 0);
   }
   if (clk == 0) clk = 64;

-  if (manchester == 0) clk = clk/2; //askraw needs to double the clock speed
+  if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed

   uint16_t arg1, arg2;
   size_t size=DemodBufferLen;
   uint16_t arg1, arg2;
   size_t size=DemodBufferLen;

-  arg1 = clk << 8 | manchester;
+  arg1 = clk << 8 | encoding;

   arg2 = invert << 8 | separator;
   if (size > USB_CMD_DATA_SIZE) {
     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
   arg2 = invert << 8 | separator;
   if (size > USB_CMD_DATA_SIZE) {
     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);


@@ -1082,24 +1087,28 @@ int CmdLFfind(const char *Cmd)
     PrintAndLog("\nChecking for Unknown tags:\n");
     ans=AutoCorrelate(4000, FALSE, FALSE);
     if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
     PrintAndLog("\nChecking for Unknown tags:\n");
     ans=AutoCorrelate(4000, FALSE, FALSE);
     if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);

-    ans=CmdDetectClockRate("F"); //GetFSKClock("",TRUE,FALSE);
+    ans=GetFskClock("",FALSE,FALSE); //CmdDetectClockRate("F"); //

     if (ans != 0){ //fsk
     if (ans != 0){ //fsk

-      ans=CmdFSKrawdemod("");
+      ans=FSKrawDemod("",FALSE);

       if (ans>0) {
         PrintAndLog("\nUnknown FSK Modulated Tag Found!");
       if (ans>0) {
         PrintAndLog("\nUnknown FSK Modulated Tag Found!");

+        printDemodBuff();

         return 1;
       }
     }
         return 1;
       }
     }

-    ans=Cmdaskmandemod("");
+    ans=ASKmanDemod("",FALSE,FALSE);

     if (ans>0) {
       PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
     if (ans>0) {
       PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");

+      PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");
+      printDemodBuff();

       return 1;
     }
     ans=CmdPSK1rawDemod("");
     if (ans>0) {
       return 1;
     }
     ans=CmdPSK1rawDemod("");
     if (ans>0) {

-      PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data psk2rawdemod'");
+      PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");

       PrintAndLog("\nCould also be PSK3 - [currently not supported]");
       PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
       PrintAndLog("\nCould also be PSK3 - [currently not supported]");
       PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");

+      printDemodBuff();

       return 1;
     }
     PrintAndLog("\nNo Data Found!\n");
       return 1;
     }
     PrintAndLog("\nNo Data Found!\n");