Updated Zorro-LAN-IDE Driver to 2.15

- Multicast fixes - new Microchip OUIs added to verification table
2026-03-02 10:41:17 +01:00
parent 0f18ce181d
commit 52ba722800
26 changed files with 1284 additions and 93 deletions
@@ -0,0 +1,109 @@
+/*
+  set up MMU for flash access using mmu.library
+
+  (C) 2022 Henryk Richter
+
+  The F0 area (0xF00000-0xF7ffff) is known to be
+  reserved by Commodore for diagnostic ROMs (or
+  BootROMs), as well as additional kickstart modules.
+
+  Some configurations of the MMU will mark this
+  area as ROM such that write attempts are inhibited
+  by the processor itself.
+
+  This code will revert any existing remapping (to
+  RAM) and set up useable cache flags such that the
+  Flash can be written to.
+
+*/
+#define __NOLIBBASE__
+#include <proto/mmu.h>
+#include <mmu/context.h>
+#include <mmu/mmutags.h>
+#include "debug.h"
+#include "mmustuff.h"
+
+
+//extern struct Library *MMUBase;
+//extern struct DosLibrary *DOSBase;
+
+#define CACHEFLAGS (MAPP_CACHEINHIBIT|MAPP_COPYBACK|MAPP_NONSERIALIZED|MAPP_IMPRECISE)
+
+#define ROMFLAGS  (MAPP_CACHEINHIBIT|MAPP_GLOBAL|MAPP_IO|MAPP_USER0)
+#define ROMCFLAGS (MAPP_CACHEINHIBIT|MAPP_COPYBACK|MAPP_NONSERIALIZED|MAPP_IMPRECISE|MAPP_GLOBAL|MAPP_IO|MAPP_WRITEPROTECTED|MAPP_ROM|MAPP_INVALID)
+
+#ifdef __VBCC__
+#define BCAST
+#else
+#define BCAST (ULONG)
+#endif
+
+
+/*
+  set up MMU as I/O space from "base", "size" bytes,
+  keep flags==0 for now
+
+  the device pointer is used to fetch the MMUbase from it, nothing more
+*/
+ASM SAVEDS LONG setupMMU( ASMR(a0) void *base    ASMREG(a0),
+                          ASMR(d0) LONG size     ASMREG(d0),
+			  ASMR(d1) ULONG flags   ASMREG(d1),
+		          ASMR(a6) DEVBASEP      ASMREG(a6) )
+{
+	struct MMUContext *ctx,*sctx;   /* default context, supervisor context */
+	ULONG  props;
+	struct MinList *ctxl,*sctxl;
+	struct TagItem tgs[2] = {{TAG_DONE,0},{TAG_DONE,0} };
+
+	if( !MMUBase )
+		return 1;	/* cannot setup MMU without MMULib */
+
+	ctx=DefaultContext();
+	sctx=SuperContext(ctx);
+
+	props  = GetPropertiesA(sctx,BCAST base,tgs);
+	props |= GetPropertiesA(sctx,BCAST base,tgs);
+
+	D(( (STRPTR)"Current MMU props on 0x%lx area: 0x%lx\n",(ULONG)base,props));
+
+	LockContextList();
+	LockMMUContext(ctx);
+	LockMMUContext(sctx);
+
+	if( (props & MAPP_REMAPPED) )
+	{
+		D(( (STRPTR)"Memory was remapped elsewhere, reverting to physical location\n" ));
+
+	        if( (ctxl=GetMapping(ctx)))
+		{
+        	 if( (sctxl=GetMapping(sctx)))
+		 {
+		  if( SetPropertiesA(ctx,0,MAPP_REMAPPED|CACHEFLAGS,BCAST base,size,tgs) )
+		  {
+		   if( SetPropertiesA(sctx,0,MAPP_REMAPPED|CACHEFLAGS,BCAST base,size,tgs) )
+		   {
+		   }
+		  }
+		  ReleaseMapping(sctx,sctxl);
+		 }
+		 ReleaseMapping(ctx,ctxl);
+		}
+	}
+
+	/* set desired flags */
+	SetPropertiesA(ctx,ROMFLAGS,ROMCFLAGS, BCAST base,size,tgs);
+	SetPropertiesA(sctx,ROMFLAGS,ROMCFLAGS,BCAST base,size,tgs);
+
+	RebuildTrees(ctx,sctx,NULL); 
+
+        UnlockMMUContext(sctx);
+       	UnlockMMUContext(ctx);
+       	UnlockContextList();
+
+	props  = GetPropertiesA(sctx,BCAST base,tgs);
+	props |= GetPropertiesA(sctx,BCAST base,tgs);
+	D(( (STRPTR)"New MMU props on 0x%lx area: 0x%lx\n",(ULONG)base,props));
+
+	return 0;
+}
+