1 /*

     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 * naviengine_assp\naviengine.cia

    16 * NE1_TBVariant ASSP architecture layer

    17 *

    18 */

    19 

    20 

    21 

    22 #include <e32cia.h>

    23 #include <naviengine_priv.h>

    24 

    25 EXPORT_C __NAKED__ void TNaviEngine::BootWaitMilliSeconds(TInt aDuration)

    26 //

    27 // Active waiting loop (not to be used after System Tick timer has been set up - Init3()

    28 //

    29 	{

    30 	//

    31 	// TO DO: (optional)

    32 	//

    33 	// Program a Hardware Timer to generate the required duration, and then loop until the timer expires.

    34 	// Do NOT use interrupts!

    35 	//

    36 	}

    37 

    38 

    39 __NAKED__ void TNaviEngine::NanoWait(TUint32 aInterval)

    40 //

    41 // Wait for aInterval nanoseconds

    42 //

    43 	{

    44 	// TO DO: work out the correct values for the hardware

    45 	

    46 	asm("subs r0, r0, #100 ");

    47 	asm("1:");

    48 	asm("subhis r0, r0, #5 ");	// 400MHz, 2 cycles = 5ns

    49 	asm("bhi 1b");	

    50 	__JUMP(,lr);

    51 	}