X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e6b8c965bb27650b3ead5738ba46dd4c82f937de..a75d63f19b93f22faeff886f9f2568f3d7531d55:/client/ui.c

diff --git a/client/ui.c b/client/ui.c
index 554230cb..48a55b1f 100644
--- a/client/ui.c
+++ b/client/ui.c
@@ -9,17 +9,12 @@
 // UI utilities
 //-----------------------------------------------------------------------------
 
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <time.h>
-#include <readline/readline.h>
-
 #include "ui.h"
-
 double CursorScaleFactor;
-int PlotGridX, PlotGridY;
+int PlotGridX, PlotGridY, PlotGridXdefault= 64, PlotGridYdefault= 64;
 int offline;
+int flushAfterWrite = 0;
+extern pthread_mutex_t print_lock;
 
 static char *logfilename = "proxmark3.log";
 
@@ -27,17 +22,20 @@ void PrintAndLog(char *fmt, ...)
 {
 	char *saved_line;
 	int saved_point;
-  va_list argptr, argptr2;
-  static FILE *logfile = NULL;
-  static int logging=1;
+	va_list argptr, argptr2;
+	static FILE *logfile = NULL;
+	static int logging = 1;
 
-  if (logging && !logfile) {
-    logfile=fopen(logfilename, "a");
-    if (!logfile) {
-      fprintf(stderr, "Can't open logfile, logging disabled!\n");
-      logging=0;
-    }
-  }
+	// lock this section to avoid interlacing prints from different threats
+	pthread_mutex_lock(&print_lock);
+  
+	if (logging && !logfile) {
+		logfile = fopen(logfilename, "a");
+		if (!logfile) {
+			fprintf(stderr, "Can't open logfile, logging disabled!\n");
+			logging=0;
+		}
+	}
 	
 	int need_hack = (rl_readline_state & RL_STATE_READCMD) > 0;
 
@@ -49,12 +47,12 @@ void PrintAndLog(char *fmt, ...)
 		rl_redisplay();
 	}
 	
-  va_start(argptr, fmt);
-  va_copy(argptr2, argptr);
-  vprintf(fmt, argptr);
-  printf("          "); // cleaning prompt
-  va_end(argptr);
-  printf("\n");
+	va_start(argptr, fmt);
+	va_copy(argptr2, argptr);
+	vprintf(fmt, argptr);
+	printf("          "); // cleaning prompt
+	va_end(argptr);
+	printf("\n");
 
 	if (need_hack) {
 		rl_restore_prompt();
@@ -64,15 +62,134 @@ void PrintAndLog(char *fmt, ...)
 		free(saved_line);
 	}
 	
-  if (logging && logfile) {
-    vfprintf(logfile, fmt, argptr2);
-    fprintf(logfile,"\n");
-    fflush(logfile);
-  }
-  va_end(argptr2);
+	if (logging && logfile) {
+		vfprintf(logfile, fmt, argptr2);
+		fprintf(logfile,"\n");
+		fflush(logfile);
+	}
+	va_end(argptr2);
+
+	if (flushAfterWrite == 1) {
+		fflush(NULL);
+	}
+	//release lock
+	pthread_mutex_unlock(&print_lock);  
 }
 
-void SetLogFilename(char *fn)
-{
+void SetLogFilename(char *fn) {
   logfilename = fn;
 }
+ 
+void iceFsk3(int * data, const size_t len){
+
+	int i,j;
+	
+	int * output =  (int* ) malloc(sizeof(int) * len);	
+	memset(output, 0x00, len);
+	float fc           = 0.1125f;          // center frequency
+	size_t adjustedLen = len;
+	
+    // create very simple low-pass filter to remove images (2nd-order Butterworth)
+    float complex iir_buf[3] = {0,0,0};
+    float b[3] = {0.003621681514929,  0.007243363029857, 0.003621681514929};
+    float a[3] = {1.000000000000000, -1.822694925196308, 0.837181651256023};
+    
+    float sample           = 0;      // input sample read from file
+    float complex x_prime  = 1.0f;   // save sample for estimating frequency
+    float complex x;
+		
+	for (i=0; i<adjustedLen; ++i) {
+
+		sample = data[i]+128;
+		
+        // remove DC offset and mix to complex baseband
+        x = (sample - 127.5f) * cexpf( _Complex_I * 2 * M_PI * fc * i );
+
+        // apply low-pass filter, removing spectral image (IIR using direct-form II)
+        iir_buf[2] = iir_buf[1];
+        iir_buf[1] = iir_buf[0];
+        iir_buf[0] = x - a[1]*iir_buf[1] - a[2]*iir_buf[2];
+        x          = b[0]*iir_buf[0] +
+                     b[1]*iir_buf[1] +
+                     b[2]*iir_buf[2];
+					 
+        // compute instantaneous frequency by looking at phase difference
+        // between adjacent samples
+        float freq = cargf(x*conjf(x_prime));
+        x_prime = x;    // retain this sample for next iteration
+
+		output[i] =(freq > 0)? 10 : -10;
+    } 
+
+	// show data
+	for (j=0; j<adjustedLen; ++j)
+		data[j] = output[j];
+		
+	CmdLtrim("30");
+	adjustedLen -= 30;
+	
+	// zero crossings.
+	for (j=0; j<adjustedLen; ++j){
+		if ( data[j] == 10) break;
+	}
+	int startOne =j;
+	
+	for (;j<adjustedLen; ++j){
+		if ( data[j] == -10 ) break;
+	}
+	int stopOne = j-1;
+	
+	int fieldlen = stopOne-startOne;
+	
+	fieldlen = (fieldlen == 39 || fieldlen == 41)? 40 : fieldlen;
+	fieldlen = (fieldlen == 59 || fieldlen == 51)? 50 : fieldlen;
+	if ( fieldlen != 40 && fieldlen != 50){
+		printf("Detected field Length: %d \n", fieldlen);
+		printf("Can only handle 40 or 50.  Aborting...\n");
+		free(output);
+		return;
+	}
+	
+	// FSK sequence start == 000111
+	int startPos = 0;
+	for (i =0; i<adjustedLen; ++i){
+		int dec = 0;
+		for ( j = 0; j < 6*fieldlen; ++j){
+			dec += data[i + j];
+		}
+		if (dec == 0) {
+			startPos = i;
+			break;
+		}
+	}
+	
+	printf("000111 position: %d \n", startPos);
+
+	startPos += 6*fieldlen+5;
+	
+	int bit =0;
+	printf("BINARY\n");
+	printf("R/40 :  ");
+	for (i =startPos ; i < adjustedLen; i += 40){
+		bit = data[i]>0 ? 1:0;
+		printf("%d", bit );
+	}
+	printf("\n");	
+	
+	printf("R/50 :  ");
+	for (i =startPos ; i < adjustedLen; i += 50){
+		bit = data[i]>0 ? 1:0;
+		printf("%d", bit );	}
+	printf("\n");	
+	
+	free(output);
+}
+
+float complex cexpf (float complex Z)
+{
+  float complex  Res;
+  double rho = exp (__real__ Z);
+  __real__ Res = rho * cosf(__imag__ Z);
+  __imag__ Res = rho * sinf(__imag__ Z);
+  return Res;
+}