align clock grid with demods on graph (#276)

[proxmark3-svn] / client / graph.c

diff --git a/client/graph.c b/client/graph.c
index 995a32da6a451cba3e57eb34ec8503f98c15c213..a96425b91ce559e38d3d79b6e5a8a1d37c69a73a 100644 (file)
--- a/client/graph.c
+++ b/client/graph.c
@@ -144,13 +144,16 @@ int GetAskClock(const char str[], bool printAns, bool verbose)
                        PrintAndLog("Failed to copy from graphbuffer");
                return -1;
        }
-       bool st = DetectST(grph, &size, &clock);
-       int start = 0;
+       //, size_t *ststart, size_t *stend
+       size_t ststart = 0, stend = 0;
+       bool st = DetectST(grph, &size, &clock, &ststart, &stend);
+       int start = stend;
        if (st == false) {
                start = DetectASKClock(grph, size, &clock, 20);
        }
+       setClockGrid(clock, start);
        // Only print this message if we're not looping something
-       if (printAns) {
+       if (printAns || g_debugMode) {
                PrintAndLog("Auto-detected clock rate: %d, Best Starting Position: %d", clock, start);
        }
        return clock;
@@ -166,11 +169,12 @@ uint8_t GetPskCarrier(const char str[], bool printAns, bool verbose)
                        PrintAndLog("Failed to copy from graphbuffer");
                return 0;
        }
-       //uint8_t countPSK_FC(uint8_t *BitStream, size_t size)
-
-       carrier = countFC(grph,size,0);
+       uint16_t fc = countFC(grph,size,0);
+       carrier = fc & 0xFF;
+       if (carrier != 2 && carrier != 4 && carrier != 8) return 0;
+       if ((fc>>8) == 10 && carrier == 8) return 0;
        // Only print this message if we're not looping something
-       if (printAns){
+       if (printAns) {
                PrintAndLog("Auto-detected PSK carrier rate: %d", carrier);
        }
        return carrier;
@@ -193,7 +197,10 @@ int GetPskClock(const char str[], bool printAns, bool verbose)
                        PrintAndLog("Failed to copy from graphbuffer");
                return -1;
        }
-       clock = DetectPSKClock(grph,size,0);
+       size_t firstPhaseShiftLoc = 0;
+       uint8_t curPhase = 0, fc = 0;
+       clock = DetectPSKClock(grph, size, 0, &firstPhaseShiftLoc, &curPhase, &fc);
+       setClockGrid(clock, firstPhaseShiftLoc);
        // Only print this message if we're not looping something
        if (printAns){
                PrintAndLog("Auto-detected clock rate: %d", clock);
@@ -220,6 +227,7 @@ uint8_t GetNrzClock(const char str[], bool printAns, bool verbose)
        }
        size_t clkStartIdx = 0;
        clock = DetectNRZClock(grph, size, 0, &clkStartIdx);
+       setClockGrid(clock, clkStartIdx);
        // Only print this message if we're not looping something
        if (printAns){
                PrintAndLog("Auto-detected clock rate: %d", clock);
@@ -238,10 +246,12 @@ uint8_t GetFskClock(const char str[], bool printAns, bool verbose)
 
 
        uint8_t fc1=0, fc2=0, rf1=0;
-       uint8_t ans = fskClocks(&fc1, &fc2, &rf1, verbose);
+       int firstClockEdge = 0;
+       uint8_t ans = fskClocks(&fc1, &fc2, &rf1, verbose, &firstClockEdge);
        if (ans == 0) return 0;
        if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){
                if (printAns) PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
+               setClockGrid(rf1, firstClockEdge);
                return rf1;
        }
        if (verbose){
@@ -250,7 +260,7 @@ uint8_t GetFskClock(const char str[], bool printAns, bool verbose)
        }
        return 0;
 }
-uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose)
+uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose, int *firstClockEdge)
 {
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        size_t size = getFromGraphBuf(BitStream);
@@ -262,8 +272,8 @@ uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose)
        }
        *fc1 = (ans >> 8) & 0xFF;
        *fc2 = ans & 0xFF;
-
-       *rf1 = detectFSKClk(BitStream, size, *fc1, *fc2);
+       //int firstClockEdge = 0;
+       *rf1 = detectFSKClk(BitStream, size, *fc1, *fc2, firstClockEdge);
        if (*rf1==0) {
                if (verbose || g_debugMode) PrintAndLog("DEBUG: Clock detect error");
                return 0;