// Copyright (c) 1997-2009 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:
// e32\memmodel\epoc\direct\arm\xsched.cia
// 
//

#include <e32cia.h>
#include <arm_mem.h>

#define iMState		iWaitLink.iSpare1

#ifdef __SCHEDULER_MACHINE_CODED__

#if defined(_DEBUG)
extern "C" void __DebugMsgRequestComplete(TInt a0, TInt a1, TInt a2);
extern "C" void __DebugMsgReqCompleteWrite(TInt a0, TInt a1, TInt a2);
#endif

__NAKED__ void DThread::RequestComplete(TRequestStatus*& /*aStatus*/, TInt /*aReason*/)
//
// Signal this threads request semaphore.
//
	{
	ASM_DEBUG2(DThreadRequestComplete,r0,lr);

	asm("ldr r3, [r1] ");					// r3 points to TRequestStatus
	asm("mov r12, #0 ");
	asm("str r12, [r1] ");					// aStatus=NULL

	asm(".global _asm_RequestComplete ");
	asm("_asm_RequestComplete: ");

#ifdef BTRACE_REQUESTS
	asm("stmdb sp!,{r0-r3,lr}");
	asm("mov r1,r3");
	asm("mov r3,r2");											// arg3 = aReason
	asm("mov r2,r1");											// arg2 = aStatus
	asm("add r1,r0,#%a0" : : "i" _FOFF(DThread,iNThread));		// arg1 = &this->iNThread
	asm("ldr r0,_threadReqequestCompleteTraceHeader");			// arg0 = header
	asm("bl " CSM_ZN6BTrace4OutXEmmmm);
	asm("ldmia sp!,{r0-r3,lr}");
#endif

	ASM_DEBUG3(RequestComplete,r0,r3,r2);
	asm("ldrb r12, [r0, #%a0]" : : "i" _FOFF(DThread,iMState));
	asm("add r0, r0, #%a0" : : "i" _FOFF(DThread,iNThread));
	asm("cmp r12, #%a0" : : "i" (DThread::EDead));	// test if iMState=EDead
	asm("beq " CSM_ZN5NKern12UnlockSystemEv );		// if it is, finish
	asm("tst r3, #3 ");						// check address aligned
	asm("streq r2, [r3] ");					// if so, write completion code
	asm("moveq r1, #0 ");					// and signal thread
	asm("beq " CSM_ZN5NKern19ThreadRequestSignalEP7NThreadP10NFastMutex );
	asm("b " CSM_ZN5NKern12UnlockSystemEv ); // bad address, just finish.
#ifdef BTRACE_REQUESTS
	asm("_threadReqequestCompleteTraceHeader:");
	asm(".word %a0" : : "i" (BTRACE_HEADER_C(16,BTrace::ERequests,BTrace::ERequestComplete)));
#endif
	}

#endif