Add tune utility

src/Makefile

@@ -1,5 +1,5 @@
 #all: ../rpitx ../pissb ../pisstv ../pifsq ../pifm ../piam ../pidcf77
-all: ../pisstv ../piopera ../pifsq ../pichirp ../sendiq ../pissb
+all: ../pisstv ../piopera ../pifsq ../pichirp ../sendiq ../pissb ../tune
 
 CFLAGS	= -Wall -g -O2 -Wno-unused-variable 
 LDFLAGS	= librpitx/src/librpitx.a -lm -lrt -lpthread 
@@ -31,6 +31,8 @@ LDFLAGS_Pissb	= librpitx/src/librpitx.a -lm -lrt -lpthread -lsndfile
 ../sendiq : sendiq.cpp 
 	$(CC) $(CFLAGS) -o ../sendiq sendiq.cpp  $(LDFLAGS) 
 
+../tune : tune.cpp 
+	$(CC) $(CFLAGS) -o ../tune tune.cpp  $(LDFLAGS) 
 
 CFLAGS_Pifm	= -Wall -g -O2 -Wno-unused-variable
 LDFLAGS_Pifm	= librpitx/src/librpitx.a -lm -lrt -lpthread -lsndfile

src/tune.cpp

@@ -0,0 +1,118 @@
+#include <unistd.h>
+#include "librpitx/src/librpitx.h"
+#include "stdio.h"
+#include <cstring>
+#include <signal.h>
+
+bool running=true;
+
+#define PROGRAM_VERSION "0.1"
+
+
+void print_usage(void)
+{
+
+fprintf(stderr,\
+"\ntune -%s\n\
+Usage:\ntune  [-f Frequency] [-h] \n\
+-f float      frequency carrier Hz(50 kHz to 1500 MHz),\n\
+-e exit immediately without killing the carrier,\n\
+-h            help (this help).\n\
+\n",\
+PROGRAM_VERSION);
+
+} /* end function print_usage */
+
+static void
+terminate(int num)
+{
+    running=false;
+	fprintf(stderr,"Caught signal - Terminating\n");
+   
+}
+
+int main(int argc, char* argv[])
+{
+	int a;
+	int anyargs = 0;
+	float SetFrequency=434e6;
+	
+	bool NotKill=false;
+	while(1)
+	{
+		a = getopt(argc, argv, "f:eh");
+	
+		if(a == -1) 
+		{
+			if(anyargs) break;
+			else a='h'; //print usage and exit
+		}
+		anyargs = 1;	
+
+		switch(a)
+		{
+		case 'f': // Frequency
+			SetFrequency = atof(optarg);
+			break;
+		case 'e': // SampleRate (Only needeed in IQ mode)
+			NotKill=true;
+			break;
+		case 'h': // help
+			print_usage();
+			exit(1);
+			break;
+		case -1:
+        	break;
+		case '?':
+			if (isprint(optopt) )
+ 			{
+ 				fprintf(stderr, "tune: unknown option `-%c'.\n", optopt);
+ 			}
+			else
+			{
+				fprintf(stderr, "tune: unknown option character `\\x%x'.\n", optopt);
+			}
+			print_usage();
+
+			exit(1);
+			break;			
+		default:
+			print_usage();
+			exit(1);
+			break;
+		}/* end switch a */
+	}/* end while getopt() */
+
+	
+	
+	 for (int i = 0; i < 64; i++) {
+        struct sigaction sa;
+
+        std::memset(&sa, 0, sizeof(sa));
+        sa.sa_handler = terminate;
+        sigaction(i, &sa, NULL);
+    }
+
+	
+		clkgpio *clk=new clkgpio;
+		clk->SetAdvancedPllMode(true);
+		clk->SetCenterFrequency(SetFrequency,10);
+		clk->SetFrequency(000);
+		clk->enableclk(4);
+		if(!NotKill)
+		{
+			while(running)
+			{
+				sleep(1);
+			}
+			clk->disableclk(4);
+			delete(clk);
+		}
+		else
+		{
+			//Ugly method : not destroying clk object will not call destructor thus leaving clk running 
+		}
+	
+	
+}	
+