add first attempt at lf miller decoding

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 2a83a4d49c376ec9f010e2d5d358971947c453ee..f1e6c7958765cd933c15ffec6b0d93a83a514e2c 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -29,6 +29,9 @@
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode=0;
 size_t DemodBufferLen=0;
+size_t g_demodStartIdx=0;
+uint8_t g_demodClock=0;
+
 static int CmdHelp(const char *Cmd);
 
 //set the demod buffer with given array of binary (one bit per byte)
@@ -253,6 +256,7 @@ void printEM410x(uint32_t hi, uint64_t id)
        return;
 }
 
+//should be moved to cmdlfem4x.c
 int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
 {
        size_t idx = 0;
@@ -274,14 +278,15 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
        }
        return 0;
 }
-
+//should be moved to cmdlfem4x.c
 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
 {
-       bool st = TRUE;
-       if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
+       bool st = true;
+       if (!ASKDemod_ext(Cmd, false, false, 1, &st)) return 0;
        return AskEm410xDecode(verbose, hi, lo);
 }
 
+//should be moved to cmdlfem4x.c
 //by marshmellow
 //takes 3 arguments - clock, invert and maxErr as integers
 //attempts to demodulate ask while decoding manchester
@@ -406,13 +411,13 @@ int Cmdaskmandemod(const char *Cmd)
                PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }
-       bool st = TRUE;
+       bool st = true;
        if (Cmd[0]=='s') 
-               return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
+               return ASKDemod_ext(Cmd++, true, true, 1, &st);
        else if (Cmd[1] == 's')
-               return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
+               return ASKDemod_ext(Cmd+=2, true, true, 1, &st);
        else
-               return ASKDemod(Cmd, TRUE, TRUE, 1);
+               return ASKDemod(Cmd, true, true, 1);
 }
 
 //by marshmellow
@@ -451,7 +456,8 @@ int Cmdmandecoderaw(const char *Cmd)
 
        sscanf(Cmd, "%i %i", &invert, &maxErr);
        size=i;
-       errCnt=manrawdecode(BitStream, &size, invert);
+       uint8_t alignPos = 0;
+       errCnt=manrawdecode(BitStream, &size, invert, &alignPos);
        if (errCnt>=maxErr){
                PrintAndLog("Too many errors: %d",errCnt);
                return 0;
@@ -587,9 +593,10 @@ int Cmdaskbiphdemod(const char *Cmd)
                PrintAndLog("          : data rawdemod ab 0 64 1 0 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);
+       return ASKbiphaseDemod(Cmd, true);
 }
 
+//could be split to a gProxII file
 //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
@@ -597,7 +604,7 @@ int Cmdaskbiphdemod(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)
 {
-       if (!ASKbiphaseDemod(Cmd, FALSE)){
+       if (!ASKbiphaseDemod(Cmd, false)){
                if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");
                return 0;
        }
@@ -655,6 +662,7 @@ int CmdG_Prox_II_Demod(const char *Cmd)
        return 1;
 }
 
+//could be moved to a viking file
 //by marshmellow
 //see ASKDemod for what args are accepted
 int CmdVikingDemod(const char *Cmd)
@@ -702,7 +710,7 @@ int Cmdaskrawdemod(const char *Cmd)
                PrintAndLog("          : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
                return 0;
        }
-       return ASKDemod(Cmd, TRUE, FALSE, 0);
+       return ASKDemod(Cmd, true, false, 0);
 }
 
 int AutoCorrelate(int window, bool SaveGrph, bool verbose)
@@ -767,7 +775,7 @@ int CmdAutoCorr(const char *Cmd)
                return usage_data_autocorr();
        int window = 4000; //set default
        char grph=0;
-       bool updateGrph = FALSE;
+       bool updateGrph = false;
        sscanf(Cmd, "%i %c", &window, &grph);
 
        if (window >= GraphTraceLen) {
@@ -775,8 +783,8 @@ int CmdAutoCorr(const char *Cmd)
                        GraphTraceLen);
                return 0;
        }
-       if (grph == 'g') updateGrph=TRUE;
-       return AutoCorrelate(window, updateGrph, TRUE);
+       if (grph == 'g') updateGrph=true;
+       return AutoCorrelate(window, updateGrph, true);
 }
 
 int CmdBitsamples(const char *Cmd)
@@ -1035,9 +1043,10 @@ int CmdFSKrawdemod(const char *Cmd)
                PrintAndLog("          : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
                return 0;
        }
-       return FSKrawDemod(Cmd, TRUE);
+       return FSKrawDemod(Cmd, true);
 }
 
+//move to cmdlfhid.c
 //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
@@ -1124,6 +1133,7 @@ int CmdFSKdemodHID(const char *Cmd)
        return 1;
 }
 
+
 //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
@@ -1789,7 +1799,7 @@ int CmdNRZrawDemod(const char *Cmd)
                PrintAndLog("          : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }
-       return NRZrawDemod(Cmd, TRUE);
+       return NRZrawDemod(Cmd, true);
 }
 
 // by marshmellow
@@ -1813,7 +1823,7 @@ int CmdPSK1rawDemod(const char *Cmd)
                PrintAndLog("          : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }
-       ans = PSKDemod(Cmd, TRUE);
+       ans = PSKDemod(Cmd, true);
        //output
        if (!ans){
                if (g_debugMode) PrintAndLog("Error demoding: %d",ans); 
@@ -1845,7 +1855,7 @@ int CmdPSK2rawDemod(const char *Cmd)
                PrintAndLog("          : data rawdemod p2 64 1 0  = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
                return 0;
        }
-       ans=PSKDemod(Cmd, TRUE);
+       ans=PSKDemod(Cmd, true);
        if (!ans){
                if (g_debugMode) PrintAndLog("Error demoding: %d",ans);  
                return 0;
@@ -2264,13 +2274,13 @@ int CmdDirectionalThreshold(const char *Cmd)
                if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
                {
                        lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
-                       GraphBuffer[i] = 1;
+                       GraphBuffer[i] = 127;
                }
                // Apply second threshold to samples heading down
                else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
                {
                        lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
-                       GraphBuffer[i] = -1;
+                       GraphBuffer[i] = -127;
                }
                else
                {