Show program name on optional HD44780 display

Close #21
Thanks @rsta2

build.sh

@@ -20,12 +20,19 @@ make mrproper || true
 ./configure -r ${RPI} --prefix "${TOOLCHAIN_PREFIX}"
 echo "DEFINE += -DSAVE_VFP_REGS_ON_IRQ" >> libs/circle/Config.mk
 echo "DEFINE += -DREALTIME" >> libs/circle/Config.mk
-make -j$(nproc)
+make -j
+
+# Build additional libraries
+cd libs/circle/addon/display/
+make clean || true
+make -j
+cd ../../../..
+
 cd ..
 
 # Build MiniDexed
 cd src
 make clean || true
-make -j$(nproc)
+make -j
 ls *.img
 cd ..

src/Rules.mk

@@ -17,6 +17,7 @@ LIBS += \
  	$(NEWLIBDIR)/lib/libm.a \
 	$(NEWLIBDIR)/lib/libc.a \
 	$(NEWLIBDIR)/lib/libcirclenewlib.a \
+	$(CIRCLEHOME)/addon/display/libdisplay.a \
 	$(CIRCLEHOME)/addon/SDCard/libsdcard.a \
   	$(CIRCLEHOME)/lib/usb/libusb.a \
  	$(CIRCLEHOME)/lib/input/libinput.a \

src/minidexed.cpp

@@ -35,6 +35,12 @@ bool CMiniDexed::Initialize (void)
     return false;
   }
 
+  
+  if (!m_LCD.Initialize ())
+  {
+    return FALSE;
+  }
+
   m_bUseSerial = true;
 
   activate();
@@ -178,6 +184,11 @@ void CMiniDexed::MIDIPacketHandler (unsigned nCable, u8 *pPacket, unsigned nLeng
 		memset(buf_name, 0, 11); // Initialize with 0x00 chars
 		s_pThis->setName(buf_name);
 		printf ("%s\n", buf_name);
+		// Print to optional HD44780 display
+		s_pThis->LCDWrite("\x1B[?25l");		// cursor off
+		CString String;
+		String.Format ("\n\r%i\n\r%s", pPacket[1], buf_name);
+		s_pThis->LCDWrite ((const char *) String);
 		return;
 	}
 
@@ -338,3 +349,8 @@ unsigned CMiniDexedHDMI::GetChunk(u32 *pBuffer, unsigned nChunkSize)
 
   return(nResult);
 };
+
+void CMiniDexed::LCDWrite (const char *pString)
+{
+	m_LCD.Write (pString, strlen (pString));
+}

src/minidexed.h

@@ -17,6 +17,7 @@
 #include <circle/hdmisoundbasedevice.h>
 #include "sysexfileloader.h"
 #include "pckeyboard.h"
+#include <display/hd44780device.h>
 
 #define SAMPLE_RATE	48000
 
@@ -25,6 +26,18 @@
 
 #define DAC_I2C_ADDRESS	0		// I2C slave address of the DAC (0 for auto probing)
 
+// HD44780 LCD configuration
+#define COLUMNS		16
+#define ROWS		2
+// GPIO pins (Brcm numbering)
+#define EN_PIN		17		// Enable
+#define RS_PIN		18		// Register Select
+#define RW_PIN		19		// Read/Write (set to 0 if not connected)
+#define D4_PIN		22		// Data 4
+#define D5_PIN		23		// Data 5
+#define D6_PIN		24		// Data 6
+#define D7_PIN		25		// Data 7
+
 class CMiniDexed : public Dexed
 {
   public:
@@ -34,14 +47,18 @@ class CMiniDexed : public Dexed
     m_PCKeyboard (this),
     m_Serial (pInterrupt, TRUE),
     m_bUseSerial (FALSE),
-    m_nSerialState (0)
+    m_nSerialState (0),
+    m_LCD (COLUMNS, ROWS, D4_PIN, D5_PIN, D6_PIN, D7_PIN, EN_PIN, RS_PIN, RW_PIN)
     {
       s_pThis = this;
     };
 
     virtual bool Initialize (void);
     void Process(boolean bPlugAndPlayUpdated);
-
+  private:
+    void LCDWrite (const char *pString);
+  private:
+  	CHD44780Device	m_LCD;
   protected:
     static void MIDIPacketHandler (unsigned nCable, u8 *pPacket, unsigned nLength);
     static void KeyStatusHandlerRaw (unsigned char ucModifiers, const unsigned char RawKeys[6]);