--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlannwif/etherpkt/sender_hw.cpp Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,131 @@
+/*
+* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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: Implements sender class for target
+*
+*/
+
+/*
+* %version: 15 %
+*/
+
+#include "am_debug.h"
+#include "sender_hw.h"
+#include "WlanProto.h"
+#include "carddrv.h"
+
+// Protocol blocks sending if it receives a return <= 0
+// This value should be propogated up through the stack
+const TInt KStopSending = 0;
+const TInt KContinueSending = 1;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// ---------------------------------------------------------
+// CSender::Send()
+// ---------------------------------------------------------
+//
+TInt CSender::Send( RMBufChain& aPacket )
+ {
+
+ TInt ret( KContinueSending );
+
+ TDataBuffer* txDataBuffer = iParent->iCard.AllocTxBuffer(
+ aPacket.Length()
+ // size of the packet's UP value
+ - 1 );
+
+ if ( txDataBuffer )
+ {
+ //First buffer contains UP value
+ RMBuf* rmbuf = aPacket.First();
+ TInt num = aPacket.NumBufs();
+
+ TUint8 UPValue = rmbuf->Get();
+
+ txDataBuffer->SetUserPriority( UPValue );
+
+ //Frame starts from second buffer
+ rmbuf = rmbuf->Next();
+ num--;
+
+ for( TInt i(0); i < num; i++ )
+ {
+ txDataBuffer->AppendBuffer( rmbuf->Ptr(), rmbuf->Length() );
+
+ rmbuf = rmbuf->Next();
+ }
+
+ if ( !iParent->iCard.AddTxFrame( txDataBuffer ) )
+ {
+ DEBUG("CSender::Send: AddTxPacket returned false => stop flow");
+ ret = KStopSending;
+ iStopSending = ETrue;
+ RequestResumeTx();
+ }
+ }
+ else
+ {
+ DEBUG("CSender::Send: Tx buf could't be allocated => stop flow");
+
+ // in this case the Tx packet could possibly be kept - if seen
+ // feasible - until ResumeTx completes and then re-submitted
+
+ ret = KStopSending;
+ iStopSending = ETrue;
+ RequestResumeTx();
+ }
+
+ aPacket.Free();
+
+ return ret;
+ }
+
+// ---------------------------------------------------------
+// CSender::RequestResumeTx()
+// ---------------------------------------------------------
+//
+void CSender::RequestResumeTx()
+ {
+ if ( !iReqPending )
+ {
+ DEBUG("CSender::RequestResumeTx()");
+
+ iReqPending = ETrue;
+ SetActive();
+ iParent->iCard.ResumeTx( iStatus );
+ }
+ }
+
+// ---------------------------------------------------------
+// CSender::RunL()
+// ---------------------------------------------------------
+//
+void CSender::RunL()
+ {
+ // Write completion from the LDD
+ DEBUG("CSender::RunL()");
+
+ iReqPending = EFalse;
+
+ if (iStopSending)
+ {
+ DEBUG("CSender::RunL(): resume flow");
+ iStopSending = EFalse;
+ iParent->iParent->ResumeSending();
+ }
+ else
+ {
+ DEBUG("CSender::RunL(): flow hasn't been stopped");
+ }
+ }