kerneltest/e32test/benchmark/bm_wins_pdd.cpp
changeset 0 a41df078684a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/benchmark/bm_wins_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 "k32bm.h"
+
+#include <emulator.h>
+
+class DBMWinsDevice : public DPhysicalDevice
+	{
+public:
+	DBMWinsDevice();
+	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 DBMWinsChannel : public DBMPChannel
+	{
+public:
+	DBMWinsChannel();
+	~DBMWinsChannel();
+	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 TInt		KBMWinsInterruptDelayMs;
+	static const TBMNs		KBMWinsNsPerTick;
+	static const TBMTicks	KBMWinsPeriod;
+
+	static void Isr(TAny*);
+	static void InterruptLatencyIsr(TAny*);
+
+	TInt						iRequestedTime;
+	MBMIsr*						iIsr;
+	MBMInterruptLatencyIsr*		iInterruptLatencyIsr;
+	NTimer						iTimer;
+	};
+	
+const TInt		DBMWinsChannel::KBMWinsInterruptDelayMs = 4;
+const TBMNs		DBMWinsChannel::KBMWinsNsPerTick = 100;
+const TBMTicks	DBMWinsChannel::KBMWinsPeriod = (((TBMTicks) 1) << 32);
+
+DECLARE_STANDARD_PDD()
+//
+// Create a new device
+//
+	{
+	__ASSERT_CRITICAL;
+	return new DBMWinsDevice;
+	}
+
+DBMWinsDevice::DBMWinsDevice()
+//
+// Constructor
+//
+	{
+	//iUnitsMask=0;
+	iVersion = TVersion(1,0,1);
+	}
+
+TInt DBMWinsDevice::Install()
+//
+// Install the device driver.
+//
+	{
+	TInt r = SetName(&KBMPdName);
+	return r;
+	}
+
+void DBMWinsDevice::GetCaps(TDes8&) const
+//
+// Return the Comm capabilities.
+//
+	{
+	}
+
+TInt DBMWinsDevice::Create(DBase*& aChannel, TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
+//
+// Create a channel on the device.
+//
+	{
+	__ASSERT_CRITICAL;
+	aChannel = new DBMWinsChannel();
+	return aChannel ? KErrNone : KErrNoMemory;
+	}
+
+TInt DBMWinsDevice::Validate(TInt /*aUnit*/, const TDesC8* /*anInfo*/, const TVersion& aVer)
+	{
+	if (!Kern::QueryVersionSupported(iVersion,aVer))
+		{
+		return KErrNotSupported;
+		}
+	return KErrNone;
+	}
+
+DBMWinsChannel::DBMWinsChannel() : iTimer(Isr, this)
+	{
+	// iIsr = NULL;
+	// iInterruptLatencyIsr = NULL;
+	}
+
+DBMWinsChannel::~DBMWinsChannel()
+	{
+	}
+
+TBMTicks DBMWinsChannel::TimerPeriod()
+	{
+	return KBMWinsPeriod;
+	}
+
+TBMTicks DBMWinsChannel::TimerStamp()
+	{
+	FILETIME now;
+	GetSystemTimeAsFileTime(&now);
+	return now.dwLowDateTime; 
+	}
+
+TBMNs DBMWinsChannel::TimerTicksToNs(TBMTicks ticks)
+	{
+	return ticks * KBMWinsNsPerTick;
+	}
+
+TBMTicks DBMWinsChannel::TimerNsToTicks(TBMNs ns)
+	{
+	return ns / KBMWinsNsPerTick;
+	}
+
+void DBMWinsChannel::Isr(TAny* ptr)
+	{
+	FILETIME now;
+	GetSystemTimeAsFileTime(&now);
+	DBMWinsChannel* pCh = (DBMWinsChannel*) ptr;
+	BM_ASSERT(pCh->iIsr);
+	pCh->iIsr->Isr(now.dwLowDateTime);
+	}
+
+TInt DBMWinsChannel::BindInterrupt(MBMIsr* aIsr)
+	{
+	BM_ASSERT(!iIsr);
+	BM_ASSERT(!iInterruptLatencyIsr);
+	iIsr = aIsr;
+	return KErrNone;
+	}
+
+void DBMWinsChannel::InterruptLatencyIsr(TAny* ptr)
+	{
+	FILETIME now;
+	GetSystemTimeAsFileTime(&now);
+	DBMWinsChannel* pCh = (DBMWinsChannel*) ptr;
+	TBMTicks latency = now.dwLowDateTime - pCh->iRequestedTime;
+	BM_ASSERT(pCh->iInterruptLatencyIsr);
+	pCh->iInterruptLatencyIsr->InterruptLatencyIsr(latency);
+	}
+
+TInt DBMWinsChannel::BindInterrupt(MBMInterruptLatencyIsr* aIsr)
+	{
+	BM_ASSERT(!iIsr);
+	BM_ASSERT(!iInterruptLatencyIsr);
+	iInterruptLatencyIsr = aIsr;
+	iTimer.iFunction = InterruptLatencyIsr;
+	return KErrNone;
+	}
+
+void DBMWinsChannel::RequestInterrupt()
+	{
+	BM_ASSERT(iIsr || iInterruptLatencyIsr);
+	FILETIME now;
+	GetSystemTimeAsFileTime(&now);
+	iRequestedTime = now.dwLowDateTime + ((KBMWinsInterruptDelayMs * ((1000 * 1000) / (TInt) KBMWinsNsPerTick)));
+	iTimer.OneShot(KBMWinsInterruptDelayMs);
+	}
+	
+void DBMWinsChannel::CancelInterrupt()
+	{
+	iTimer.Cancel();
+	}
+