Updated LAN driver

- changed directory layout
- Multicast support (automatic RX filter adjustment)
- MC68000 target in Makefile
- clarified licensing (GPLv3)
- README files

Driver/baxnet/source/enc624j6net/intervaltimer.h

@@ -0,0 +1,57 @@
+/*
+******************************************************************************
+* Name:    intervaltimer.h                                                   *
+* Date:    $Date: 2016-12-18 22:20:04 +0100 (So, 18. Dez 2016) $             * 
+* Authors: Henryk Richter                                                    *
+******************************************************************************
+*/
+#ifndef _INC_INTERVALTIMER_H
+#define _INC_INTERVALTIMER_H
+
+#include <exec/memory.h>
+#include <exec/interrupts.h>
+#include <exec/tasks.h>
+#include <exec/ports.h>
+#include <devices/timer.h>
+
+struct	IVT_TimerStruct {
+	unsigned long 	 IVT_Interval;
+	long		 IVT_Signal;
+	unsigned long	 IVT_SigMask;
+	struct Task	 *IVT_SigTask;
+	struct MsgPort   *IVT_Port;
+	struct IORequest *IVT_IORequest;
+	struct Device    *IVT_Device;
+	struct Interrupt IVT_Int;
+	unsigned char    IVT_Init;
+	unsigned char 	 IVT_Runflag;
+	unsigned char    IVT_Stopflag;
+	unsigned char    IVT_Unused;
+	unsigned long    IVT_Counter;
+};
+
+#if 1
+#include	"compiler.h"
+#else
+/* self-contained in here as well */
+#ifdef __SASC
+#define ASM __asm
+#define ASMR(x) register __ ## x 
+#define ASMREG(x) 
+#define SAVEDS __saveds
+#else
+#define ASM
+#define ASMR(x) register
+#define ASMREG(x) __asm("" #x "")
+#define SAVEDS __saveds
+#endif
+#endif
+
+ASM SAVEDS int InitIntervalTimer(  ASMR(a1) struct IVT_TimerStruct*  IntervalTimer ASMREG(a1) );
+ASM SAVEDS int StartIntervalTimer( ASMR(a1) struct IVT_TimerStruct* IntervalTimer ASMREG(a1),
+                                   ASMR(d1) unsigned long           Microsecs     ASMREG(d1) );
+ASM SAVEDS int StopIntervalTimer(  ASMR(a1) struct IVT_TimerStruct* IntervalTimer ASMREG(a1) );
+ASM SAVEDS int ExitIntervalTimer(  ASMR(a1) struct IVT_TimerStruct*  IntervalTimer ASMREG(a1) );
+
+
+#endif /* _INC_INTERVALTIMER_H */