Added a lf acquisition-mode which can do decimation and quantization, in order to...

[proxmark3-svn] / client / graph.c

diff --git a/client/graph.c b/client/graph.c
index 541e68f3404a30c98de216c16afc70b7c7da1349..6362c8fe242dc438914b5f34135db9874737b91d 100644 (file)
--- a/client/graph.c
+++ b/client/graph.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include "ui.h"
 #include "graph.h"
+#include "lfdemod.h"
 
 int GraphBuffer[MAX_GRAPH_TRACE_LEN];
 int GraphTraceLen;
@@ -23,7 +24,7 @@ void AppendGraph(int redraw, int clock, int bit)
 
   for (i = 0; i < (int)(clock / 2); ++i)
     GraphBuffer[GraphTraceLen++] = bit ^ 1;
-  
+
   for (i = (int)(clock / 2); i < clock; ++i)
     GraphBuffer[GraphTraceLen++] = bit;
 
@@ -31,10 +32,12 @@ void AppendGraph(int redraw, int clock, int bit)
     RepaintGraphWindow();
 }
 
-/* clear out our graph window */
+// clear out our graph window
 int ClearGraph(int redraw)
 {
   int gtl = GraphTraceLen;
+  memset(GraphBuffer, 0x00, GraphTraceLen);
+
   GraphTraceLen = 0;
 
   if (redraw)
@@ -43,53 +46,69 @@ int ClearGraph(int redraw)
   return gtl;
 }
 
-/*
- * Detect clock rate
- */
-int DetectClock(int peak)
-{
-  int i;
-  int clock = 0xFFFF;
-  int lastpeak = 0;
-
-  /* Detect peak if we don't have one */
-  if (!peak)
-    for (i = 0; i < GraphTraceLen; ++i)
-      if (GraphBuffer[i] > peak)
-        peak = GraphBuffer[i];
+// DETECT CLOCK NOW IN LFDEMOD.C
 
-  for (i = 1; i < GraphTraceLen; ++i)
-  {
-    /* If this is the beginning of a peak */
-    if (GraphBuffer[i - 1] != GraphBuffer[i] && GraphBuffer[i] == peak)
-    {
-      /* Find lowest difference between peaks */
-      if (lastpeak && i - lastpeak < clock)
-        clock = i - lastpeak;
-      lastpeak = i;
-    }
+void setGraphBuf(uint8_t *buff, size_t size)
+{
+  int i=0;
+  ClearGraph(0);
+  for (; i < size; ++i){
+               GraphBuffer[i]=buff[i]-128;
   }
-
-  return clock;
+  GraphTraceLen=size;
+  RepaintGraphWindow();
+  return;
 }
-
-/* Get or auto-detect clock rate */
+size_t getFromGraphBuf(uint8_t *buff)
+{
+  uint32_t i;
+  for (i=0;i<GraphTraceLen;++i){
+    if (GraphBuffer[i]>127) GraphBuffer[i]=127; //trim
+    if (GraphBuffer[i]<-127) GraphBuffer[i]=-127; //trim
+    buff[i]=(uint8_t)(GraphBuffer[i]+128);
+  }
+  return i;
+}
+// Get or auto-detect clock rate
 int GetClock(const char *str, int peak, int verbose)
 {
   int clock;
-
   sscanf(str, "%i", &clock);
   if (!strcmp(str, ""))
     clock = 0;
 
-  /* Auto-detect clock */
+       // Auto-detect clock
   if (!clock)
   {
-    clock = DetectClock(peak);
-    /* Only print this message if we're not looping something */
-    if (!verbose)
+    uint8_t grph[MAX_GRAPH_TRACE_LEN]={0};
+               size_t size = getFromGraphBuf(grph);
+    clock = DetectASKClock(grph,size,0);
+               // Only print this message if we're not looping something
+    if (!verbose){
       PrintAndLog("Auto-detected clock rate: %d", clock);
+    }
   }
 
   return clock;
 }
+
+int GetNRZpskClock(const char *str, int peak, int verbose)
+{
+       int clock;
+       sscanf(str, "%i", &clock);
+       if (!strcmp(str, ""))
+               clock = 0;
+
+       // Auto-detect clock
+       if (!clock)
+       {
+               uint8_t grph[MAX_GRAPH_TRACE_LEN]={0};
+               size_t size = getFromGraphBuf(grph);
+               clock = DetectpskNRZClock(grph,size,0);
+               // Only print this message if we're not looping something
+               if (!verbose){
+                       PrintAndLog("Auto-detected clock rate: %d", clock);
+               }
+       }
+       return clock;
+}