--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/benchmark/bm_misa_pdd.cpp Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,213 @@
+// 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 <sa1100.h>
+
+#include "k32bm.h"
+
+class DBMMisaDevice : public DPhysicalDevice
+ {
+public:
+ DBMMisaDevice();
+ 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 DBMMisaChannel : public DBMPChannel
+ {
+public:
+ DBMMisaChannel();
+ ~DBMMisaChannel();
+ 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:
+
+ TInt BindInterrupt();
+
+ static const TInt KBMMisaInterruptDelayTicks = KHwOscFreqHz / 1000;
+ static const TBMTicks KBMMisaPeriod = (((TBMTicks) 1) << 32);
+ static const TBMNs KBMMisaNsPerTick = (1000*1000*1000) / KHwOscFreqHz;
+
+ static void Isr(TAny*);
+
+ MBMIsr* iIsr;
+ MBMInterruptLatencyIsr* iInterruptLatencyIsr;
+ };
+
+
+DECLARE_STANDARD_PDD()
+//
+// Create a new device
+//
+ {
+ __ASSERT_CRITICAL;
+ return new DBMMisaDevice;
+ }
+
+DBMMisaDevice::DBMMisaDevice()
+//
+// Constructor
+//
+ {
+ //iUnitsMask=0;
+ iVersion = TVersion(1,0,1);
+ }
+
+TInt DBMMisaDevice::Install()
+//
+// Install the device driver.
+//
+ {
+ TInt r = SetName(&KBMPdName);
+ return r;
+ }
+
+void DBMMisaDevice::GetCaps(TDes8& aDes) const
+//
+// Return the Comm capabilities.
+//
+ {
+ }
+
+TInt DBMMisaDevice::Create(DBase*& aChannel, TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
+//
+// Create a channel on the device.
+//
+ {
+ __ASSERT_CRITICAL;
+ aChannel = new DBMMisaChannel;
+ return aChannel?KErrNone:KErrNoMemory;
+ }
+
+TInt DBMMisaDevice::Validate(TInt /*aUnit*/, const TDesC8* /*anInfo*/, const TVersion& aVer)
+ {
+ if (!Kern::QueryVersionSupported(iVersion,aVer))
+ {
+ return KErrNotSupported;
+ }
+ return KErrNone;
+ }
+
+DBMMisaChannel::DBMMisaChannel()
+ {
+ // iIsr = NULL;
+ // iInterruptLatencyIsr = NULL;
+ }
+
+DBMMisaChannel::~DBMMisaChannel()
+ {
+ if (iIsr || iInterruptLatencyIsr)
+ {
+ TSa1100::DisableOstInterrupt(KHwOstMatchGeneral);
+ TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);
+ Interrupt::Disable(KIntIdOstMatchGeneral);
+ TSa1100::ModifyIntLevels(KHtIntsOstMatchGeneral,0);
+ Interrupt::Unbind(KIntIdOstMatchGeneral);
+ }
+ }
+
+TBMTicks DBMMisaChannel::TimerPeriod()
+ {
+ return KBMMisaPeriod;
+ }
+
+TBMTicks DBMMisaChannel::TimerStamp()
+ {
+ return TUint(TSa1100::OstData());
+ }
+
+TBMNs DBMMisaChannel::TimerTicksToNs(TBMTicks ticks)
+ {
+ return ticks * KBMMisaNsPerTick;
+ }
+
+TBMTicks DBMMisaChannel::TimerNsToTicks(TBMNs ns)
+ {
+ return ns / KBMMisaNsPerTick;
+ }
+
+void DBMMisaChannel::Isr(TAny* ptr)
+ {
+ DBMMisaChannel* mCh = (DBMMisaChannel*) ptr;
+ BM_ASSERT(mCh->iIsr || mCh->iInterruptLatencyIsr);
+ if (mCh->iIsr)
+ {
+ mCh->iIsr->Isr(TUint(TSa1100::OstData()));
+ }
+ else
+ {
+ mCh->iInterruptLatencyIsr->InterruptLatencyIsr(TSa1100::OstData() - TSa1100::OstMatch(KHwOstMatchGeneral));
+ }
+ TSa1100::DisableOstInterrupt(KHwOstMatchGeneral);
+ TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);
+ }
+
+TInt DBMMisaChannel::BindInterrupt()
+ {
+ TInt r = Interrupt::Bind(KIntIdOstMatchGeneral, Isr, this);
+ if (r != KErrNone)
+ {
+ return r;
+ }
+ TSa1100::ModifyIntLevels(0, KHtIntsOstMatchGeneral); // route new timer interrupt to FIQ
+ TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);
+ Interrupt::Enable(KIntIdOstMatchGeneral);
+ return KErrNone;
+ }
+
+TInt DBMMisaChannel::BindInterrupt(MBMIsr* aIsr)
+ {
+ BM_ASSERT(!iIsr);
+ BM_ASSERT(!iInterruptLatencyIsr);
+ iIsr = aIsr;
+ return BindInterrupt();
+ }
+
+TInt DBMMisaChannel::BindInterrupt(MBMInterruptLatencyIsr* aIsr)
+ {
+ BM_ASSERT(!iIsr);
+ BM_ASSERT(!iInterruptLatencyIsr);
+ iInterruptLatencyIsr = aIsr;
+ return BindInterrupt();
+ }
+
+
+void DBMMisaChannel::RequestInterrupt()
+ {
+ BM_ASSERT(iIsr || iInterruptLatencyIsr);
+ TSa1100::SetOstMatch(KHwOstMatchGeneral, TSa1100::OstData() + KBMMisaInterruptDelayTicks);
+ TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);
+ TSa1100::EnableOstInterrupt(KHwOstMatchGeneral);
+ }
+
+void DBMMisaChannel::CancelInterrupt()
+ {
+ if (iIsr || iInterruptLatencyIsr)
+ {
+ TSa1100::DisableOstInterrupt(KHwOstMatchGeneral);
+ TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);
+ }
+ }
+