--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/misc/strataflash.cpp Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,102 @@
+// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32test\misc\strataflash.cpp
+//
+//
+
+#include <e32def.h>
+#include <e32def_private.h>
+#include "flash.h"
+
+class StrataFlash : public Flash
+ {
+public:
+ virtual TInt Read(TUint32 anAddr, TUint32 aSize, TUint8* aDest);
+ virtual TInt BlankCheck(TUint32 anAddr, TUint32 aSize);
+ virtual TInt Erase(TUint32 anAddr, TUint32 aSize);
+ virtual TInt Write(TUint32 anAddr, TUint32 aSize, const TUint8* aSrc);
+ };
+
+
+Flash* Flash::New(TUint32 /*anAddr*/)
+ {
+ return new StrataFlash;
+ }
+
+TInt StrataFlash::Read(TUint32 anAddr, TUint32 aSize, TUint8* aDest)
+ {
+ Mem::Copy(aDest,(const TUint8*)anAddr,aSize);
+ return KErrNone;
+ }
+
+TInt StrataFlash::BlankCheck(TUint32 anAddr, TUint32 aSize)
+ {
+ const TUint8* p=(const TUint8*)anAddr;
+ const TUint8* pE=p+aSize;
+ while(p<pE)
+ {
+ if (*p++!=0xff)
+ return (TUint32)p-anAddr;
+ }
+ return 0;
+ }
+
+TInt StrataFlash::Erase(TUint32 anAddr, TUint32 aSize)
+ {
+ TUint32 base=anAddr&~0x1ffff; // round base address down to block
+ TUint32 end=anAddr+aSize;
+ end=(end+0x1ffff)&~0x1ffff; // round end address up to block
+ TUint32 size=end-base;
+ for (; size; size-=0x20000, base+=0x20000)
+ {
+ volatile TUint8* p=(volatile TUint8*)base;
+ *p=0x20; // block erase
+ *p=0xd0; // block erase confirm
+ TUint s=0;
+ while ((s&0x80)==0)
+ s=*p;
+ *p=0x50; // clear status reg
+ *p=0xff; // read mode
+ if (s&0x20)
+ {
+ // error
+ return (TUint32)p-anAddr+1;
+ }
+ }
+ return 0;
+ }
+
+TInt StrataFlash::Write(TUint32 anAddr, TUint32 aSize, const TUint8* aSrc)
+ {
+ volatile TUint8* p=(volatile TUint8*)anAddr;
+ const TUint8* pE=aSrc+aSize;
+ for (; aSrc<pE; aSrc++, p++)
+ {
+ *p=0x40; // byte write
+ *p=*aSrc; // write data
+ TUint s=0;
+ while ((s&0x80)==0)
+ s=*p;
+ *p=0x50; // clear status reg
+ *p=0xff; // read mode
+ if (s&0x10)
+ {
+ // error
+ return (TUint32)p-anAddr+1;
+ }
+ }
+ return 0;
+ }
+
+