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) 2008-2010 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:
* ne1_tb\specific\power.cpp*
*/
#include "ne1_tb_power.h"
DNE1_TBPowerController* TNE1_TBPowerController::iPowerController = NULL;
#ifdef __SMP__
#ifndef __NO_IDLE_HANDLER_PIL__
DNE1_SMPIdleHandler* TNE1_TBPowerController::iIdleHandler = NULL;
#endif
const TUint32 DNE1_TBPowerController::KCyclesPerTick = 66666;
const TInt DNE1_TBPowerController::KMaxSleepTicks = TInt(0xffffff00u/DNE1_TBPowerController::KCyclesPerTick)-1;
const TUint32 DNE1_TBPowerController::KWakeUpBeforeTick = 24000;
const TUint32 DNE1_TBPowerController::KTooCloseToTick = 6666;
const TUint32 DNE1_TBPowerController::KMinTimeToTick = 2000;
const TInt DNE1_TBPowerController::KMinIdleTicks = 2;
#if defined(SIMULATE_RETIREMENT) && !defined(__NO_IDLE_HANDLER_PIL__)
volatile TUint32 DNE1_SMPIdleHandler::iRetiredCores = 0;
#endif
#endif // __SMP__
inline TUint32 abs_u32diff(TUint32 aA, TUint32 aB)
{
return (aA > aB) ? aA - aB : aB - aA;
}
//-/-/-/-/-/-/-/-/-/ class DNE1_SMPIdleHandler /-/-/-/-/-/-/-/-/-/
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__)
DNE1_SMPIdleHandler::DNE1_SMPIdleHandler(DNE1_TBPowerController* aController)
:DSMPIdleHandler(),iController(aController)
{
}
TInt DNE1_SMPIdleHandler::Initialise()
{
TInt r = KErrNone;
DSMPIdleHandler::Initialise(KHwBaseGlobalIntDist,KHwBaseIntIf);
#ifdef SIMULATE_RETIREMENT
// create as many antiIdle threads as there are cored
TInt nc = NKern::NumberOfCpus();
iIdleStealers = new TDfcQue*[nc];
__PM_ASSERT_ALWAYS(iIdleStealers);
iIdleStealDfcs = new TDfc*[nc];
__PM_ASSERT_ALWAYS(iIdleStealDfcs);
for (TInt i = 0; i < nc; i++)
{
TName name = _L("IDLESTEALER");
name.AppendNum(i);
r = Kern::DfcQCreate(iIdleStealers[i],1,&name);
__PM_ASSERT_ALWAYS(KErrNone==r);
iIdleStealDfcs[i] = new TDfc(IdleSteal,(TAny*) i,iIdleStealers[i],0);
__PM_ASSERT_ALWAYS(iIdleStealDfcs[i]);
NKern::ThreadSetCpuAffinity((NThread*)iIdleStealers[i]->iThread,i);
}
TName name = _L("RETIREENAGE");
r = Kern::DfcQCreate(iRetireEngageQue,27,&name);
#endif
return r;
}
TBool DNE1_SMPIdleHandler::DoEnterIdle(TInt aCpuMask, TInt aStage, volatile TAny* /*aU*/)
{
if (aStage & SCpuIdleHandler::EPostamble)
{
iController->IdleTickSuppresionRestore();
return EFalse;
}
#ifdef SIMULATE_RETIREMENT
// are we retiring?
if (iRetiredCores&aCpuMask)
{
// this should be safe as no cores can be using sync points yet
// as DoEnterIdle is called before all cores are in idle
// and the last core has not arrived yet
// theorically would not return from here
// DoRetireCore would call TIdleSupport::MarkCoreRetired as last
// thing once core is guaranteed not to enter idle handler again
// until it is enaged once more
DoRetireCore(__e32_find_ms1_32(aCpuMask),0);
return EFalse;
}
#endif
return ETrue;
}
TBool DNE1_SMPIdleHandler::GetLowPowerMode(TInt aIdleTime, TInt &aLowPowerMode)
{
aLowPowerMode = 0;
if (aIdleTime < DNE1_TBPowerController::KMinIdleTicks) return EFalse;
iController->IdleTickSuppresionEntry(DNE1_TBPowerController::KWakeUpBeforeTick,aIdleTime);
return ETrue;
}
TBool DNE1_SMPIdleHandler::EnterLowPowerMode(TInt aMode, TInt aCpuMask, TBool aLastCpu)
{
TIdleSupport::DoWFI(); // maybe we will wake up, or maybe another CPU will wake us up
return ETrue;
}
#ifdef SIMULATE_RETIREMENT
void DNE1_SMPIdleHandler::IdleSteal(TAny* aPtr)
{
TInt cpu = (TInt) aPtr;
PMBTRACE4(KRetireCore,KRetireCoreEntry,cpu);
TUint32 cpuMask = 0x1 << cpu;
while (cpuMask&iRetiredCores);
PMBTRACE4(KRetireCore,KRetireCoreeXit,cpu);
}
void DNE1_SMPIdleHandler::DoRetireCore(TInt aCpu, TLinAddr /*aReturnPoint*/)
{
iIdleStealDfcs[aCpu]->RawAdd();
TIdleSupport::MarkCoreRetired(0x1<<aCpu);
}
#endif
#endif
//-/-/-/-/-/-/-/-/-/ class DNE1_TBPowerController /-/-/-/-/-/-/-/-/-/
DNE1_TBPowerController::DNE1_TBPowerController()
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__)
:iIdleHandler(this)
#endif
{
Register(); // register Power Controller with Power Manager
TNE1_TBPowerController::RegisterPowerController(this);
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__)
// Register idle handler
if ((AsspRegister::Read32(KHwRoGpio_Port_Value) & (0x1<<27)))
{
__PM_ASSERT_ALWAYS(KErrNone==iIdleHandler.Initialise());
}
else
{
// press and hold User Switch 0 / INT0 (SW3) on boot
// to disable idle tick suppression
Kern::Printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
Kern::Printf("!!!!!!!!!!!! NOT DOING ITS !!!!!!!!!!!");
Kern::Printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
}
#endif
}
void DNE1_TBPowerController::CpuIdle()
{
Arch::TheAsic()->Idle();
#ifndef __SMP__
iIdleCount++;
#endif
}
void DNE1_TBPowerController::EnableWakeupEvents()
{
//
// TO DO: (mandatory)
//
// Enable tracking of wake-up events directly in hardware. If the hardware is controlled by a Driver
// or Extension, may need to disable interrupts and preemption around the code that accesses the hardware
// and set up a flag which the Driver/Extension code need to read before modifying the state of that piece
// of hardware. Note in that case the Driver/Extension may need to link to this Library.
//
//
// EXAMPLE ONLY
// In this example we simply assume that the driver will call the Power Controller every time a
// wakeup event occurr. It is up to the Power Controller to know if it is tracking them or not.
// We also assume that if a wakeup event occurrs when the CPU is in Standby, this will automatically
// bring it back from that state.
iWakeupEventsOn = ETrue; // start tracking wakeup events
}
void DNE1_TBPowerController::DisableWakeupEvents()
{
//
// TO DO: (mandatory)
//
// Disable tracking of wake-up events directly in hardware or if the hardware is controlled by a Driver or
// Extension need to set up a flag which the Driver/Extension reads whenever the event occurs, in order to
// find out if it needs to deliver notification to the Power Controller
//
iWakeupEventsOn = EFalse; // stop tracking wakeup events
}
void DNE1_TBPowerController::AbsoluteTimerExpired()
{
if (iTargetState == EPwStandby && iWakeupEventsOn)
{
iWakeupEventsOn = EFalse; // one occurred, no longer track wakeup events
WakeupEvent();
}
}
void DNE1_TBPowerController::PowerDown(TTimeK aWakeupST)
{
if (iTargetState == EPwStandby)
{
//
// TO DO: (mandatory)
//
// Converts between the Wakeup time in System Time units as passed in to this function and a Wakeup
// time in RTC units. The following code is given as an example how to convert between System time units
// RTC time units on a system with a 32 bit RTC timer and which is incremented on a second interval:
//
// TUint32 wakeupRTC;
if (aWakeupST)
{
TUint32 nowRTC = TNaviEngine::RtcData();
TTimeK nowST = Kern::SystemTime();
__KTRACE_OPT(KPOWER,Kern::Printf("system time: now = 0x%lx(us) wakeup = 0x%lx(us)", nowST, aWakeupST));
if (aWakeupST < nowST)
return;
Int64 deltaSecs = (aWakeupST - nowST) / 1000000;
if (deltaSecs <= 0)
return;
if (deltaSecs + (Int64)nowRTC > (Int64)(KMaxTInt - 2))
{
//wakeupRTC = (KMaxTInt - 2); // RTC can't wrap around during standby
__KTRACE_OPT(KPOWER,Kern::Printf("RTC: now = %d(s) wakeup = %d(s)", nowRTC, KMaxTInt - 2));
}
else
{
//wakeupRTC = nowRTC + deltaSecs;
__KTRACE_OPT(KPOWER,Kern::Printf("RTC: now = %d(s) wakeup = %d(s)", nowRTC, nowRTC + deltaSecs));
}
}
// else
// wakeupRTC = 0;
//
// TO DO: (optional)
//
// It then uses the calculated value to program the RTC to wakeup the System at the Wakeup
// time ans sets the CPU and remaining hardware to go to the correponding low power mode. When the
// state of the Core and Core Peripherals is not preserved in this mode the following is usually
// required:
// - save current Core state (current Mode, banked registers for each Mode and Stack Pointer for
// both current and User Modes
// - save MMU state: Control Register, TTB and Domain Access Control
// - Flush Dta Cache and drain Write Buffer
// - save Core Peripherals state: Interrupt Controller, Pin Function, Bus State and Clock settings
// SDRAM should be put in self refresh mode. Peripheral devices involved in detection of Wakeup events
// should be left powered.
// The Tick timer should be disabled and the current count of this and other System timers shall be
// saved.
// On wakeing up the state should be restored from the save state as above. SDRAM shall be brought back
// under CPU control, The Tick count shall be restored and timers re-enabled.
// We assume that if a wakeup event occurrs when the CPU is in Standby, this will automatically
// bring it back from that state. Therefore we stop tracking wakeup events as the Power Manager will
// complete any pending notifications anyway. When the driver delivers its notification, we just ignore
// it.
iWakeupEventsOn = EFalse; // tracking of wakeup events is now done in hardware
}
else
{
Kern::Restart(0x80000000);
}
}
void DNE1_TBPowerController::IdleTickSuppresionRestore()
{
#ifdef __SMP__
// only one CPU can enter this function
NETimer& NET = NETimer::Timer(0);
TUint32 timerWrapped = NET.iGTInterrupt&KNETimerGTIInt_TCI;
__e32_io_completion_barrier();
TUint32 timeIn = NET.iTimerCount;
TUint32 timeSlept = timeIn;
__PM_ASSERT_DEBUG(NET.iTimerReset == iNextInterrupt);
if (timerWrapped)
{
// We woke up due to a the main timer. If this is case unless we clear the interrupt
// this result in an extra tick being advanced. We are reprogramming the ISR for a latter
// activation aligned with the correct phase. For timer based wakeups we wake up a bit early
// early enough to allow the time needed to repogram the timer for the next edge
timeSlept+=((iNextInterrupt+KCyclesPerTick)-iOriginalTimerExpire); // timer wrapped if interrupt is pending
ClearTimerInterrupt();
}
else if (timeIn >= iOriginalTimerExpire)
{
//We woke up after one or more ticks
timeSlept+=(KCyclesPerTick-iOriginalTimerExpire);
}
TUint32 ticksSlept = timeSlept/KCyclesPerTick;
TUint32 timeToNextInterruptDelta = (ticksSlept+1)*KCyclesPerTick-timeSlept;
if (timerWrapped==0 && timeIn<iOriginalTimerExpire)
{
//We woke up before first tick expired
ticksSlept=0;
timeToNextInterruptDelta=iOriginalTimerExpire-timeIn;
}
if (timeToNextInterruptDelta < KMinTimeToTick)
{
// This should not happen on normal timer expiries as we should be be programmed to wake
// well before the next timer expiry which therefore means that ie we need to make sure that
// wake up times are always larger than this KMinTimeToTick
// However a WakeupEvent could have resulted in us waking close potential tick
// skip a tick
ticksSlept++;
timeToNextInterruptDelta +=KCyclesPerTick;
}
TUint32 timeToNextInterrupt = timeIn+timeToNextInterruptDelta;
//while(timeToNextInterrupt==KWakeUpBeforeTick);
NET.iTimerReset = timeToNextInterrupt;
__e32_io_completion_barrier();
NTimerQ::Advance(ticksSlept);
// restart stopped timers used in NKern::Timestamp, in hardware that will be used for
// product timers of this type would stop when entering low power mode
NETimer& T1 = NETimer::Timer(1);
NETimer& T2 = NETimer::Timer(2);
TUint32 t2 = T2.iTimerCount;
TUint32 t1 = T1.iTimerCount;
// because timers at started one after the other
// there a certain amount of error accumulated in the diffence between them
// we need to take into account this error level when restarting them
// so that we can ensure the error does not grow
// note sleep time cannot exceed 0xffffff00
TUint32 error = (t1-t2)&0xff;
TUint32 remainder = 0xffffff00-t1;
if (remainder > timeSlept) t1+=timeSlept;
else t1 = timeSlept - remainder;
T1.iTimerCount = t1;
T2.iTimerCount += timeSlept + error;
__e32_io_completion_barrier();
T1.iTimerCtrl |= KNETimerCtrl_CAE; // start timer 1 first
__e32_io_completion_barrier();
T2.iTimerCtrl |= KNETimerCtrl_CAE; // start timer 2
__e32_io_completion_barrier();
#ifndef __NO_IDLE_HANDLER_PIL__
PMBTRACE8(KIdleTickSupression,KTimeSleptTimeNextInt,timeSlept,timeToNextInterrupt);
PMBTRACE8(KIdleTickSupression,KTIcksSlept,ticksSlept,timeToNextInterruptDelta);
PMBTRACE8(KMisc,0x20,timeIn,timerWrapped);
#endif
#endif
}
void DNE1_TBPowerController::IdleTickSuppresionEntry(TUint32 aWakeDelay, TInt aNextTimer)
{
#ifdef __SMP__
NETimer& NET = NETimer::Timer(0);
TUint32 cyclesInTick = NET.iTimerCount;
TUint32 cyclesFullTick= NET.iTimerReset;
__e32_io_completion_barrier();
if (abs_u32diff(cyclesFullTick,cyclesInTick) < KTooCloseToTick || (NET.iGTInterrupt&KNETimerGTIInt_TCI))
return; // to close to edge of tick so we skip this one or even past it
if (aNextTimer > KMaxSleepTicks) aNextTimer = KMaxSleepTicks;
iNextInterrupt = (aNextTimer)*KCyclesPerTick;//max time we can sleep for
if (iNextInterrupt > (KMaxTUint32-cyclesFullTick))
return;
// We need to wakeup just before the next timer expire is due
iOriginalTimerExpire=cyclesFullTick;//this is where the current tick would have expired
iNextInterrupt+=(cyclesFullTick -aWakeDelay);//adjust next interrupt time from where we are now
NET.iTimerReset = iNextInterrupt;
__e32_io_completion_barrier();
NET.iGTInterrupt = KNETimerGTIInt_All; // clear any pending interrupts
__e32_io_completion_barrier();
#ifndef __NO_IDLE_HANDLER_PIL__
PMBTRACE8(KIdleTickSupression,KCyclesInTickCyclesFullTick,cyclesInTick,cyclesFullTick);
PMBTRACE4(KIdleTickSupression,KNextInterrupt,iNextInterrupt);
#endif
//TO DO: Review method of setting iPostambleReuired flag
SCpuIdleHandler* pS = NKern::CpuIdleHandler();
pS->iPostambleRequired = ETrue;
// stop timers used in NKern::Timestamp, in hardware that will be used for
// product timers of this type would stop when entering low power mode
NETimer& T1 = NETimer::Timer(1);
NETimer& T2 = NETimer::Timer(2);
T2.iTimerCtrl &= ~ KNETimerCtrl_CAE; // clear timer CAE to hold timer value
__e32_io_completion_barrier();
T1.iTimerCtrl &= ~ KNETimerCtrl_CAE; // stop timer 1 last (lets error increase
__e32_io_completion_barrier(); // but this should be ok as it shouldn't exceed 0xff
iIdleCount++;
#endif
}
//-/-/-/-/-/-/-/-/-/ class TNE1_TBPowerController /-/-/-/-/-/-/-/-/-/
EXPORT_C void TNE1_TBPowerController::WakeupEvent()
{
if(!iPowerController)
__PM_PANIC("Power Controller not present");
else if(iPowerController->iWakeupEventsOn)
{
iPowerController->iWakeupEventsOn=EFalse; // one occurred, no longer track wakeup events
iPowerController->WakeupEvent();
}
}
// NOTE: these are just enabler functions to simulate core retirement
// they would not stand to any scrutiny as the basis for a proper solution
// they are just here to allow to test the idle handler for robustness against retirement
// whilst we wait for a kernel solution
// @pre thread context, interrupt on, kernel unlocked, no fast mutex held
EXPORT_C void TNE1_TBPowerController::RetireCore(TInt aCpu,TRetireEngageCb& aCb)
{
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
SRetireCall* call = new SRetireCall(aCpu,aCb);
if (call && aCpu < NKern::NumberOfCpus())
{
call->Call();
}
else
{
if (!call) aCb.iResult = KErrNoMemory;
else
{
aCb.iResult = KErrArgument;
delete call;
}
aCb.iDfc.Enque();
}
#endif
}
// can be called from any core to engage any other core but caller must be outside idle thread
// @pre thread context interrupt on no fast mutex held
EXPORT_C void TNE1_TBPowerController::EngageCore(TInt aCpu, TRetireEngageCb& aCb)
{
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
SEngageCall* call = new SEngageCall(aCpu,aCb);
if (call && aCpu < NKern::NumberOfCpus())
{
call->Call();
}
else
{
if (!call) aCb.iResult = KErrNoMemory;
else
{
aCb.iResult = KErrArgument;
delete call;
}
aCb.iDfc.Enque();
}
#endif
}
/**
Idle count is incremented everytime ITS takes place
@return idle count
*/
EXPORT_C TUint TNE1_TBPowerController::IdleCount()
{
return iPowerController->iIdleCount;
}
//-/-/-/-/-/-/-/-/-/ class SRetireCall /-/-/-/-/-/-/-/-/-/
SRetireCall::SRetireCall(TInt aCpu,TRetireEngageCb& aCb)
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
:iTimer(RetireCoreDfcFn,(TAny*)this,
TNE1_TBPowerController::iIdleHandler->iRetireEngageQue,0),
iCpu(aCpu),iCb(aCb),iAllCpusMask(TIdleSupport::AllCpusMask())
#endif
{};
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
void SRetireCall::RetireCoreDfcFn(TAny* aParam)
{
SRetireCall* pC = (SRetireCall*) aParam;
TUint32 cMask = 0x1<<pC->iCpu;
TUint32 toBeRetired = DNE1_SMPIdleHandler::iRetiredCores|cMask;
PMBTRACE4(KRetireCore,0x10,toBeRetired);
if (toBeRetired==pC->iAllCpusMask || (DNE1_SMPIdleHandler::iRetiredCores&cMask) )
{
//Make sure we don't retire all cores! at least one should run. Core might also already be retired
pC->iCb.iResult = KErrArgument;
pC->iCb.iDfc.Enque();
delete pC;
return;
}
//Ensure that timer interrupt only hits a cpu that is still active
// this won't be need when core retiring support is complete in the kernel
// as it will migrate all interrupts to remaining enaged cores
// also just for added realism make sure this thread can only run in cores that are still enaged
TUint32 enaged = (~toBeRetired)&pC->iAllCpusMask;
TInt targetCpu = __e32_find_ls1_32(enaged);
TUint32 targetCpuMask = 0x1<<targetCpu;
PMBTRACE4(KRetireCore,0x11,targetCpu);
targetCpuMask <<= ((KIntIdOstMatchMsTimer %4)<<3);
TUint32 clear = ~(0xff << ((KHwBaseGlobalIntDist%4)<<3));
GicDistributor* GIC = (GicDistributor*) KHwBaseGlobalIntDist;
GIC->iTarget[KIntIdOstMatchMsTimer>>2]&=clear;
__e32_io_completion_barrier();
GIC->iTarget[KIntIdOstMatchMsTimer>>2]|=targetCpuMask;
__e32_io_completion_barrier();
NKern::ThreadSetCpuAffinity(NKern::CurrentThread(),targetCpu);
TNE1_TBPowerController::iIdleHandler->ResetSyncPoints();
DNE1_SMPIdleHandler::iRetiredCores=toBeRetired;
PMBTRACE4(KRetireCore,0x12,DNE1_SMPIdleHandler::iRetiredCores);//,DNE1_TBPowerController::iEngagingCores);
// queue callback
pC->iCb.iResult = KErrNone;
pC->iCb.iDfc.Enque();
delete pC;
}
#endif
//-/-/-/-/-/-/-/-/-/ class SEngageCall /-/-/-/-/-/-/-/-/-/
SEngageCall::SEngageCall(TInt aCpu,TRetireEngageCb& aCb)
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
:iDfc(EngageCoreDfcFn,(TAny*)this,
TNE1_TBPowerController::iIdleHandler->iRetireEngageQue,0),iCpu(aCpu),iCb(aCb)
#endif
{};
#if defined(__SMP__) && !defined(__NO_IDLE_HANDLER_PIL__) && defined(SIMULATE_RETIREMENT)
void SEngageCall::EngageCoreDfcFn(TAny* aParam)
{
SEngageCall* pC = (SEngageCall*) aParam;
TUint32 cMask = 0x1<<pC->iCpu;
PMBTRACE4(KEngageCore,0x10,cMask);
if ((~DNE1_SMPIdleHandler::iRetiredCores)&cMask )
{
//core is already engaged
pC->iCb.iResult = KErrArgument;
pC->iCb.iDfc.Enque();
delete pC;
return;
}
TNE1_TBPowerController::iIdleHandler->ResetSyncPoints();
TIdleSupport::MarkCoreEngaged(cMask);
DNE1_SMPIdleHandler::iRetiredCores&=~cMask; // This will free calling CPU
PMBTRACE4(KEngageCore,0x11,DNE1_SMPIdleHandler::iRetiredCores);
pC->iCb.iResult = KErrNone;
pC->iCb.iDfc.Enque();
delete pC;
}
#endif
TInt BinaryPowerInit(); // the Symbian example Battery Monitor and Power HAL handling
GLDEF_C TInt KernelModuleEntry(TInt aReason)
{
if(aReason==KModuleEntryReasonVariantInit0)
{
//
//
//
__KTRACE_OPT(KPOWER, Kern::Printf("Starting NE1_TBVariant Resource controller"));
return KErrNone;
}
else if(aReason==KModuleEntryReasonExtensionInit0)
{
__KTRACE_OPT(KPOWER, Kern::Printf("Starting NE1_TBVariant power controller"));
//
// TO DO: (optional)
//
// Start the Kernel-side Battery Monitor and hook a Power HAL handling function.
// Symbian provides example code for both of the above in \e32\include\driver\binpower.h
// You may want to write your own versions.
// The call below starts the example Battery Monitor and hooks the example Power HAL handling function
// At the end we return an error to make sure that the entry point is not called again with
// KModuleEntryReasonExtensionInit1 (which would call the constructor of TheResourceManager again)
//
TInt r = BinaryPowerInit();
if (r!= KErrNone)
__PM_PANIC("Can't initialise Binary Power model");
DNE1_TBPowerController* c = new DNE1_TBPowerController();
if(c)
return KErrGeneral;
else
__PM_PANIC("Can't create Power Controller");
}
else if(aReason==KModuleEntryReasonExtensionInit1)
{
// doesn't get called
}
return KErrArgument;
}