Add a status LED on the RPi to the Null display driver.

Makefile.Pi

@@ -0,0 +1,26 @@
+# This makefile is for use with the Raspberry Pi. The wiringpi library is needed.
+
+CC      = gcc
+CXX     = g++
+CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DRASPBERRY_PI -I/usr/local/include
+LIBS    = -lwiringPi -lwiringPiDev -lpthread
+LDFLAGS = -g -L/usr/local/lib
+
+OBJECTS = \
+		AMBEFEC.o BCH.o BPTC19696.o Conf.o CRC.o Display.o DMRControl.o DMRCSBK.o DMRData.o DMRDataHeader.o DMREMB.o DMREmbeddedLC.o DMRFullLC.o DMRLookup.o DMRLC.o \
+		DMRNetwork.o DMRShortLC.o DMRSlot.o DMRSlotType.o DMRAccessControl.o DMRTrellis.o DStarControl.o DStarHeader.o DStarNetwork.o DStarSlowData.o Golay2087.o \
+		Golay24128.o Hamming.o Log.o MMDVMHost.o Modem.o ModemSerialPort.o Mutex.o Nextion.o NullDisplay.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o \
+		P25Network.o P25NID.o P25Utils.o QR1676.o RS129.o RS241213.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o Thread.o Timer.o UDPSocket.o \
+		Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+
+all:		MMDVMHost
+
+MMDVMHost:	$(OBJECTS)
+		$(CXX) $(OBJECTS) $(CFLAGS) $(LIBS) -o MMDVMHost
+
+%.o: %.cpp
+		$(CXX) $(CFLAGS) -c -o $@ $<
+
+clean:
+		$(RM) MMDVMHost *.o *.d *.bak *~
+ 

NullDisplay.cpp

@@ -18,6 +18,12 @@
 
 #include "NullDisplay.h"
 
+#if defined(RASPBERRY_PI)
+#include <wiringPi.h>
+#endif
+
+#define	LED_STATUS	28
+
 CNullDisplay::CNullDisplay() :
 CDisplay()
 {
@@ -29,6 +35,12 @@ CNullDisplay::~CNullDisplay()
 
 bool CNullDisplay::open()
 {
+#if defined(RASPBERRY_PI)
+	::wiringPiSetup();
+
+	::pinMode(LED_STATUS, OUTPUT);
+	::digitalWrite(LED_STATUS, 0);
+#endif
 	return true;
 }
 
@@ -46,34 +58,58 @@ void CNullDisplay::setLockoutInt()
 
 void CNullDisplay::writeDStarInt(const char* my1, const char* my2, const char* your, const char* type, const char* reflector)
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 1);
+#endif
 }
 
 void CNullDisplay::clearDStarInt()
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 0);
+#endif
 }
 
 void CNullDisplay::writeDMRInt(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type)
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 1);
+#endif
 }
 
 void CNullDisplay::clearDMRInt(unsigned int slotNo)
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 0);
+#endif
 }
 
 void CNullDisplay::writeFusionInt(const char* source, const char* dest, const char* type, const char* origin)
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 1);
+#endif
 }
 
 void CNullDisplay::clearFusionInt()
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 0);
+#endif
 }
 
 void CNullDisplay::writeP25Int(const char* source, bool group, unsigned int dest, const char* type)
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 1);
+#endif
 }
 
 void CNullDisplay::clearP25Int()
 {
+#if defined(RASPBERRY_PI)
+	::digitalWrite(LED_STATUS, 0);
+#endif
 }
 
 void CNullDisplay::writeCWInt()