author | William Roberts <williamr@symbian.org> |
Fri, 01 Oct 2010 11:40:18 +0100 | |
changeset 2 | 048b58430d46 |
parent 0 | 5de814552237 |
permissions | -rw-r--r-- |
0
5de814552237
Initial contribution supporting NaviEngine 1
Ryan Harkin <ryan.harkin@nokia.com>
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/* |
5de814552237
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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Initial contribution supporting NaviEngine 1
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
5de814552237
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
5de814552237
Initial contribution supporting NaviEngine 1
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* |
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* Contributors: |
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* |
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Ryan Harkin <ryan.harkin@nokia.com>
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* Description: |
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* naviengine_assp\naviengine.cia |
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* NE1_TBVariant ASSP architecture layer |
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* |
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*/ |
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|
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#include <e32cia.h> |
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#include <naviengine_priv.h> |
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|
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EXPORT_C __NAKED__ void TNaviEngine::BootWaitMilliSeconds(TInt aDuration) |
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// |
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// Active waiting loop (not to be used after System Tick timer has been set up - Init3() |
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// |
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{ |
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// |
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// TO DO: (optional) |
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// |
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// Program a Hardware Timer to generate the required duration, and then loop until the timer expires. |
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// Do NOT use interrupts! |
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// |
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} |
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__NAKED__ void TNaviEngine::NanoWait(TUint32 aInterval) |
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// |
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// Wait for aInterval nanoseconds |
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// |
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{ |
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// TO DO: work out the correct values for the hardware |
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asm("subs r0, r0, #100 "); |
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asm("1:"); |
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asm("subhis r0, r0, #5 "); // 400MHz, 2 cycles = 5ns |
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asm("bhi 1b"); |
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__JUMP(,lr); |
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} |