Initial contribution supporting NaviEngine 1
This package_definition.xml will build support for three memory models
- Single (sne1_tb)
- Multiple (ne1_tb)
- Flexible (fne1_tb)
/*
* Copyright (c) 2008-2009 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:
* naviengine_assp\naviengine.cpp
*
*/
#include <naviengine_priv.h>
#include "watchdog.h"
const TInt KWatchdogTimeoutSecs = 5; // the period, in seconds, that the watchdog timer will expire
//
// Pat the watchdog to prevent the board from resetting
//
void TNaviEngineWatchdog::WatchdogTimer(TAny* aPtr)
{
__KTRACE_OPT(KHARDWARE, Kern::Printf("watchdogTimer expired"));
//Kern::Printf("watchdogTimer expired");
TNaviEngineWatchdog *pDog = (TNaviEngineWatchdog *) aPtr;
// Pat the Dog now to give us the full period to respond with the timer
AsspRegister::Write32(KHwWatchdog_WDTINT, 1);
// Now queue the timer again so that we can pat it next time around
pDog->iWatchdogTimer.Again(NKern::TimerTicks(pDog->iWatchdogTimerPeriodMs));
}
//
// Constructor
//
// We only really need the constructor to create the timer instance.
//
TNaviEngineWatchdog::TNaviEngineWatchdog() :
iWatchdogTimer(WatchdogTimer,this)
{
}
// Destructor should never be called
TNaviEngineWatchdog::~TNaviEngineWatchdog()
{
__crash();
}
/**
Perform hardware-dependent initialisation
Called by platform independent layer
*/
TInt TNaviEngineWatchdog::Create()
{
__KTRACE_OPT(KEXTENSION,Kern::Printf("TNaviEngineWatchdog::Create"));
//Kern::Printf("TNaviEngineWatchdog::Create");
SetTimer(KWatchdogTimeoutSecs);
return KErrNone;
}
//
// Enable/disable the external watchdog timer (eWDT).
//
void TNaviEngineWatchdog::SetTimer(TUint aTimeoutInSeconds)
{
__KTRACE_OPT(KHARDWARE, Kern::Printf(">TNaviEngine::SetWatchdogTimer timeout=%d seconds", aTimeoutInSeconds));
//Kern::Printf(">TNaviEngine::SetWatchdogTimer timeout=%d seconds", aTimeoutInSeconds);
// Disable eWDT
AsspRegister::Write32(KHwWatchdog_WDTCNT, 0);
// If only disabling then we're done
if (aTimeoutInSeconds > 0)
{
// Set the WTD period to something very near the required number
// of seconds (this assumes a 66.666MHz clock)
AsspRegister::Write32(KHwWatchdog_WDTSET, (aTimeoutInSeconds*63)<<20);
AsspRegister::Write32(KHwWatchdog_WDTTIM, 0);
// Enable eWDT - start counting
AsspRegister::Write32(KHwWatchdog_WDTCNT, 1);
// Pat the Dog now to give us the full period to respond with the timer
AsspRegister::Write32(KHwWatchdog_WDTINT, 1);
// We have to decide how often to pat the dog, in seconds.
// The board will flag a warning after aTimeoutInSeconds, and reset after a further aTimeoutInSeconds.
// So we have to fire the watchdog at least every aTimeoutInSeconds to prevent the warning
// I've decided that we'll fire 500ms before the alarm to be sure we've patted the dog in time
__KTRACE_OPT(KHARDWARE, Kern::Printf("TNaviEngine::SetWatchdogTimer kicking off a timer..."));
//Kern::Printf("TNaviEngine::SetWatchdogTimer kicking off a timer...");
iWatchdogTimerPeriodMs = ((aTimeoutInSeconds * 1000) - 500);
iWatchdogTimer.OneShot(NKern::TimerTicks(iWatchdogTimerPeriodMs));
}
}
DECLARE_STANDARD_EXTENSION()
{
__KTRACE_OPT(KEXTENSION,Kern::Printf("Watchdog: Starting timer service"));
//Kern::Printf("Watchdog: Starting timer service");
// create the watchdog handler
TInt r=KErrNoMemory;
TNaviEngineWatchdog* pH=new TNaviEngineWatchdog;
if (pH)
{
r=pH->Create();
}
__KTRACE_OPT(KEXTENSION,Kern::Printf("Watchdog: Returns %d",r));
//Kern::Printf("Watchdog: Returns %d",r);
return r;
}