]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmddata.c
adjust hardnested compiler fix to accurate version
[proxmark3-svn] / client / cmddata.c
index a59236e6d64e915b62ec3ac87962fc949c5f601b..c12c2ce6d58cd9341740a215f81a67b468c73744 100644 (file)
@@ -68,15 +68,21 @@ void save_restoreDB(uint8_t saveOpt)
        static uint8_t SavedDB[MAX_DEMOD_BUF_LEN];
        static size_t SavedDBlen;
        static bool DB_Saved = false;
+       static int savedDemodStartIdx = 0;
+       static int savedDemodClock = 0;
 
-       if (saveOpt==1) { //save
+       if (saveOpt == GRAPH_SAVE) { //save
 
                memcpy(SavedDB, DemodBuffer, sizeof(DemodBuffer));
                SavedDBlen = DemodBufferLen;
                DB_Saved=true;
+               savedDemodStartIdx = g_DemodStartIdx;
+               savedDemodClock = g_DemodClock;
        } else if (DB_Saved) { //restore
                memcpy(DemodBuffer, SavedDB, sizeof(DemodBuffer));
                DemodBufferLen = SavedDBlen;
+               g_DemodClock = savedDemodClock;
+               g_DemodStartIdx = savedDemodStartIdx;
        }
        return;
 }
@@ -507,45 +513,44 @@ int Cmdaskrawdemod(const char *Cmd)
        return ASKDemod(Cmd, true, false, 0);
 }
 
-int AutoCorrelate(int window, bool SaveGrph, bool verbose)
+int AutoCorrelate(const int *in, int *out, size_t len, int window, bool SaveGrph, bool verbose)
 {
        static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
        size_t Correlation = 0;
        int maxSum = 0;
        int lastMax = 0;
        if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
-       for (int i = 0; i < GraphTraceLen - window; ++i) {
+       for (int i = 0; i < len - window; ++i) {
                int sum = 0;
                for (int j = 0; j < window; ++j) {
-                       sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
+                       sum += (in[j]*in[i + j]) / 256;
                }
                CorrelBuffer[i] = sum;
-               if (sum >= maxSum-100 && sum <= maxSum+100){
+               if (sum >= maxSum-100 && sum <= maxSum+100) {
                        //another max
                        Correlation = i-lastMax;
                        lastMax = i;
                        if (sum > maxSum) maxSum = sum;
-               } else if (sum > maxSum){
+               } else if (sum > maxSum) {
                        maxSum=sum;
                        lastMax = i;
                }
        }
-       if (Correlation==0){
+       if (Correlation==0) {
                //try again with wider margin
-               for (int i = 0; i < GraphTraceLen - window; i++){
-                       if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
+               for (int i = 0; i < len - window; i++) {
+                       if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)) {
                                //another max
                                Correlation = i-lastMax;
                                lastMax = i;
-                               //if (CorrelBuffer[i] > maxSum) maxSum = sum;
                        }
                }
        }
        if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
 
-       if (SaveGrph){
-               GraphTraceLen = GraphTraceLen - window;
-               memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
+       if (SaveGrph) {
+               //GraphTraceLen = GraphTraceLen - window;
+               memcpy(out, CorrelBuffer, len * sizeof(int));
                RepaintGraphWindow();  
        }
        return Correlation;
@@ -578,7 +583,7 @@ int CmdAutoCorr(const char *Cmd)
                return 0;
        }
        if (grph == 'g') updateGrph=true;
-       return AutoCorrelate(window, updateGrph, true);
+       return AutoCorrelate(GraphBuffer, GraphBuffer, GraphTraceLen, window, updateGrph, true);
 }
 
 int CmdBitsamples(const char *Cmd)
@@ -681,6 +686,18 @@ int CmdGraphShiftZero(const char *Cmd)
        return 0;
 }
 
+int AskEdgeDetect(const int *in, int *out, int len, int threshold) {
+       int Last = 0;
+       for(int i = 1; i<len; i++) {
+               if (in[i]-in[i-1] >= threshold) //large jump up
+                       Last = 127;
+               else if(in[i]-in[i-1] <= -1 * threshold) //large jump down
+                       Last = -127;
+               out[i-1] = Last;
+       }
+       return 0;
+}
+
 //by marshmellow
 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
 //similar to dirtheshold, threshold commands 
@@ -688,18 +705,12 @@ int CmdGraphShiftZero(const char *Cmd)
 int CmdAskEdgeDetect(const char *Cmd)
 {
        int thresLen = 25;
-       int Last = 0;
+       int ans = 0;
        sscanf(Cmd, "%i", &thresLen); 
 
-       for(int i = 1; i<GraphTraceLen; i++){
-               if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
-                       Last = 127;
-               else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
-                       Last = -127;
-               GraphBuffer[i-1] = Last;
-       }
+       ans = AskEdgeDetect(GraphBuffer, GraphBuffer, GraphTraceLen, thresLen);
        RepaintGraphWindow();
-       return 0;
+       return ans;
 }
 
 /* Print our clock rate */
@@ -798,12 +809,12 @@ int FSKrawDemod(const char *Cmd, bool verbose)
                if (!rfLen) rfLen = 50;
        }
        int startIdx = 0;
-       int size = fskdemod_ext(BitStream, BitLen, rfLen, invert, fchigh, fclow, &startIdx);
+       int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow, &startIdx);
        if (size > 0) {
                setDemodBuf(BitStream,size,0);
                setClockGrid(rfLen, startIdx);
-       
-               // Now output the bitstream to the scrollback by line of 16 bits
+
+    // Now output the bitstream to the scrollback by line of 16 bits
                if (verbose || g_debugMode) {
                        PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow);
                        PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
@@ -1064,7 +1075,8 @@ int CmdRawDemod(const char *Cmd)
 void setClockGrid(int clk, int offset) {
        g_DemodStartIdx = offset;
        g_DemodClock = clk;
-       PrintAndLog("demodoffset %d, clk %d",offset,clk);
+       if (g_debugMode) PrintAndLog("demodoffset %d, clk %d",offset,clk);
+
        if (offset > clk) offset %= clk;
        if (offset < 0) offset += clk;
 
@@ -1433,37 +1445,42 @@ int CmdScale(const char *Cmd)
        return 0;
 }
 
-int CmdDirectionalThreshold(const char *Cmd)
+int directionalThreshold(const int* in, int *out, size_t len, int8_t up, int8_t down)
 {
-       int8_t upThres = param_get8(Cmd, 0);
-       int8_t downThres = param_get8(Cmd, 1);
-
-       printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
+       int lastValue = in[0];
+       out[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
 
-       int lastValue = GraphBuffer[0];
-       GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
-
-       for (int i = 1; i < GraphTraceLen; ++i) {
+       for (int i = 1; i < len; ++i) {
                // Apply first threshold to samples heading up
-               if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
+               if (in[i] >= up && in[i] > lastValue)
                {
-                       lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
-                       GraphBuffer[i] = 127;
+                       lastValue = out[i]; // Buffer last value as we overwrite it.
+                       out[i] = 1;
                }
                // Apply second threshold to samples heading down
-               else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
+               else if (in[i] <= down && in[i] < lastValue)
                {
-                       lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
-                       GraphBuffer[i] = -127;
+                       lastValue = out[i]; // Buffer last value as we overwrite it.
+                       out[i] = -1;
                }
                else
                {
-                       lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
-                       GraphBuffer[i] = GraphBuffer[i-1];
-
+                       lastValue = out[i]; // Buffer last value as we overwrite it.
+                       out[i] = out[i-1];
                }
        }
-       GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
+       out[0] = out[1]; // Align with first edited sample.
+       return 0;
+}
+
+int CmdDirectionalThreshold(const char *Cmd)
+{
+       int8_t upThres = param_get8(Cmd, 0);
+       int8_t downThres = param_get8(Cmd, 1);
+
+       printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
+
+       directionalThreshold(GraphBuffer, GraphBuffer,GraphTraceLen, upThres, downThres);
        RepaintGraphWindow();
        return 0;
 }
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