--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/brdbootldr/ubootldr/inc/ymodem.h	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,85 @@
+// 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:
+// bootldr\inc\ymodem.h
+// 
+//
+
+#ifndef __YMODEM_H__
+#define __YMODEM_H__
+
+#ifndef __KERNEL_MODE__
+#include <e32base.h>
+typedef CBase BASE;
+//#else
+//#include <kernel/kernel.h>
+//typedef DBase BASE;
+#endif
+
+const TUint8 SOH=0x01;
+const TUint8 STX=0x02;
+const TUint8 EOT=0x04;
+const TUint8 ACK=0x06;
+const TUint8 NAK=0x15;
+const TUint8 CAN=0x18;
+const TUint8 SUB=0x1A;
+const TUint8 BIGC=0x43;
+const TUint8 BIGG=0x47;
+
+const TInt KErrZeroLengthPacket=-200;
+const TInt KErrPacketTooShort=-201;
+const TInt KErrBadPacketType=-202;
+const TInt KErrCorruptSequenceNumber=-203;
+const TInt KErrWrongSequenceNumber=-204;
+const TInt KErrBadCrc=-205;
+const TInt KErrBadTerminationPacket=-206;
+
+const TInt KHeaderBufferSize=1024; 
+
+class YModem : public BASE
+	{
+public:
+	TInt StartDownload(TBool aG, TInt& aLength, TDes& aName);
+	TInt ReadPackets(TUint8*& aDest, TInt aLength);
+	
+	// Support to deflated ROM Image
+	TInt GetInnerCompression(TBool &aImageDeflated, TBool &aRomLoaderHeaderExists);
+	TInt GetHeaderBufferContent(TUint8*& aDest, TInt& aLength);
+	TBool IsHeaderStored(void);
+protected:
+	YModem(TBool aG);
+	void UpdateCrc(const TUint8* aPtr, TInt aLength);
+	TInt CheckPacket(TUint8* aDest);
+	TInt ReadPacket(TDes8& aDest);
+	virtual TInt ReadBlock(TDes8& aDest)=0;
+	virtual void WriteC(TUint aChar)=0;
+protected:
+	TInt iTimeout;
+	TInt iState;
+	TInt iPacketSize;
+	TInt iBlockSize;
+	TUint8 iInitChar;
+	TUint8 iSeqNum;
+	TUint16 iCrc;
+	TInt iFileSize;
+	TBuf8<1040> iPacketBuf;
+	TBuf<256> iFileName;
+    
+    // Support to deflated ROM Image
+	TBuf8<KHeaderBufferSize> iHeaderBuf;
+    TBool iHeaderStored;
+    TInt iDataSizeInPuffer;
+    TBool iImageDeflated;
+	};
+
+#endif