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1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * naviengine_assp\naviengine.cia |
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16 * NE1_TBVariant ASSP architecture layer |
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17 * |
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18 */ |
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19 |
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20 |
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21 |
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22 #include <e32cia.h> |
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23 #include <naviengine_priv.h> |
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24 |
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25 EXPORT_C __NAKED__ void TNaviEngine::BootWaitMilliSeconds(TInt aDuration) |
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26 // |
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27 // Active waiting loop (not to be used after System Tick timer has been set up - Init3() |
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28 // |
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29 { |
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30 // |
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31 // TO DO: (optional) |
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32 // |
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33 // Program a Hardware Timer to generate the required duration, and then loop until the timer expires. |
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34 // Do NOT use interrupts! |
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35 // |
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36 } |
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37 |
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38 |
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39 __NAKED__ void TNaviEngine::NanoWait(TUint32 aInterval) |
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40 // |
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41 // Wait for aInterval nanoseconds |
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42 // |
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43 { |
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44 // TO DO: work out the correct values for the hardware |
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45 |
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46 asm("subs r0, r0, #100 "); |
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47 asm("1:"); |
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48 asm("subhis r0, r0, #5 "); // 400MHz, 2 cycles = 5ns |
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49 asm("bhi 1b"); |
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50 __JUMP(,lr); |
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51 } |