kerneltest/e32test/benchmark/bm_ne1_pdd.cpp
changeset 0 a41df078684a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/benchmark/bm_ne1_pdd.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,197 @@
+// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+//
+
+#include <kernel/kernel.h>
+#include <upd35001_timer.h>
+
+#include "k32bm.h"
+
+class DBMNE1Device : public DPhysicalDevice
+	{
+public:
+	DBMNE1Device();
+	virtual TInt Install();
+	virtual void GetCaps(TDes8& aDes) const;
+	virtual TInt Create(DBase*& aChannel, TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
+	virtual TInt Validate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
+	};
+
+class DBMNE1Channel : public DBMPChannel
+	{
+public:
+	DBMNE1Channel();
+	~DBMNE1Channel();
+	virtual TBMTicks TimerPeriod();
+	virtual TBMTicks TimerStamp();
+	virtual TBMNs TimerTicksToNs(TBMTicks);
+	virtual TBMTicks TimerNsToTicks(TBMNs);
+	virtual TInt BindInterrupt(MBMIsr*);
+	virtual TInt BindInterrupt(MBMInterruptLatencyIsr*);
+	virtual void RequestInterrupt();
+	virtual void CancelInterrupt();
+
+private:
+	static const TBMTicks	KBMNE1Period = (((TBMTicks) 1) << 32);
+	
+	static void Isr(TAny*);
+	
+	MBMIsr*						iIsr;
+	MBMInterruptLatencyIsr*		iInterruptLatencyIsr;
+	TUint						iPrescale;
+	TUint						iNsPerTick;
+	NTimer						iTimer;
+	volatile TUint				iStartCount;
+	volatile TUint				iRunCount;
+	volatile TUint				iCancelCount;
+	};
+
+
+DECLARE_STANDARD_PDD()
+//
+// Create a new device
+//
+	{
+	__ASSERT_CRITICAL;
+	return new DBMNE1Device;
+	}
+
+DBMNE1Device::DBMNE1Device()
+//
+// Constructor
+//
+	{
+	//iUnitsMask=0;
+	iVersion = TVersion(1,0,1);
+	}
+
+TInt DBMNE1Device::Install()
+//
+// Install the device driver.
+//
+	{
+	TInt r = SetName(&KBMPdName);
+	return r;
+	}
+
+void DBMNE1Device::GetCaps(TDes8& aDes) const
+//
+// Return the Comm capabilities.
+//
+	{
+	}
+
+TInt DBMNE1Device::Create(DBase*& aChannel, TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
+//
+// Create a channel on the device.
+//
+	{
+	__ASSERT_CRITICAL;
+	aChannel = new DBMNE1Channel;
+	return aChannel?KErrNone:KErrNoMemory;
+	}
+
+TInt DBMNE1Device::Validate(TInt /*aUnit*/, const TDesC8* /*anInfo*/, const TVersion& aVer)
+	{
+	if (!Kern::QueryVersionSupported(iVersion,aVer))
+		{
+		return KErrNotSupported;
+		}
+	return KErrNone;
+	}
+
+DBMNE1Channel::DBMNE1Channel()
+	:	iTimer(&Isr, this)
+	{
+	//	iIsr = NULL;
+	//	iInterruptLatencyIsr = NULL;
+	NETimer& T2 = NETimer::Timer(2);
+	iPrescale = __e32_find_ms1_32(T2.iPrescaler & 0x3f);
+	iNsPerTick = 15u << iPrescale;
+	}
+
+DBMNE1Channel::~DBMNE1Channel()
+	{
+	CancelInterrupt();
+	}
+
+TBMTicks DBMNE1Channel::TimerPeriod()
+	{
+	return KBMNE1Period;
+	}
+
+TBMTicks DBMNE1Channel::TimerStamp()
+	{
+	return NETimer::Timer(2).iTimerCount;
+	}
+
+TBMNs DBMNE1Channel::TimerTicksToNs(TBMTicks ticks)
+	{
+	return ticks * (TBMTicks)iNsPerTick;
+	}
+
+TBMTicks DBMNE1Channel::TimerNsToTicks(TBMNs ns)
+	{
+	return ns / (TBMTicks)iNsPerTick;
+	}
+
+void DBMNE1Channel::Isr(TAny* ptr)
+	{
+	DBMNE1Channel* mCh = (DBMNE1Channel*) ptr;
+	BM_ASSERT(mCh->iIsr || mCh->iInterruptLatencyIsr);
+	if (mCh->iIsr)
+		{
+		mCh->iIsr->Isr(NETimer::Timer(2).iTimerCount);
+		}
+	else
+		{
+		TUint x = NETimer::Timer(0).iTimerCount;
+		x = (x + (1u<<mCh->iPrescale) - 1) >> mCh->iPrescale;
+		mCh->iInterruptLatencyIsr->InterruptLatencyIsr(x);
+		}
+	__e32_atomic_add_ord32(&mCh->iRunCount, 1);
+	}
+
+TInt DBMNE1Channel::BindInterrupt(MBMIsr* aIsr)
+	{
+	BM_ASSERT(!iIsr);
+	BM_ASSERT(!iInterruptLatencyIsr);
+	iIsr = aIsr;
+	return KErrNone;
+	}
+
+TInt DBMNE1Channel::BindInterrupt(MBMInterruptLatencyIsr* aIsr)
+	{
+	BM_ASSERT(!iIsr);
+	BM_ASSERT(!iInterruptLatencyIsr);
+	iInterruptLatencyIsr = aIsr;
+	return KErrNone;
+	}
+
+
+void DBMNE1Channel::RequestInterrupt()
+	{
+	BM_ASSERT(iIsr || iInterruptLatencyIsr);
+	if (iTimer.OneShot(1)==KErrNone)
+		__e32_atomic_add_ord32(&iStartCount, 1);
+	}
+
+void DBMNE1Channel::CancelInterrupt()
+	{
+	if (iTimer.Cancel())
+		__e32_atomic_add_ord32(&iCancelCount, 1);
+	while (iStartCount != iCancelCount + iRunCount)
+		{}
+	}
+