// Copyright (c) 2003-2009 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:

 // e32test\personality\example\isr.cpp

 // Test code for example RTOS personality.

 // 

 //

 #include "plat_priv.h"

 #include <personality/example/personality.h>

 #if defined(__MAWD__)

 #include <windermere.h>

 #elif defined(__MISA__)

 #define __ISR_SUPPORTED__

 #include <sa1100.h>

 #elif defined(__MCOT__)

 #define __ISR_SUPPORTED__

 #include <cotulla.h>

 #elif defined(__MI920__) || defined(__NI1136__)

 #include <integratorap.h>

 #elif defined(__EPOC32__) && defined(__CPU_X86)

 #include <x86.h>

 #endif

 #ifdef __ISR_SUPPORTED__

 #include "../../misc/prbs.h"

 #endif

 extern "C" void stop_random_isr(void);

 typedef void (*isr_entry)(unsigned);

 volatile TUint RandomSeed[2] = {0xb504f333u, 0xf9de6484u};

 volatile isr_entry IsrVector = 0;

 volatile TUint IsrCount = 0;

 void timer_isr(void*)

 	{

 #if defined(__MISA__) 

 	TUint interval = Random((TUint*)RandomSeed);

 	interval &= 0x3ff;

 	interval += 256;	// 256-1279 ticks = approx 69 to 347 microseconds

 	TUint oscr=TSa1100::OstData();

 	TSa1100::SetOstMatch(KHwOstMatchGeneral, oscr + interval);

 	TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);

 #elif defined(__MCOT__)

 	TUint interval = Random((TUint*)RandomSeed);

 	interval &= 0x3ff;

 	interval += 256;	// 256-1279 ticks = approx 69 to 347 microseconds

 	TUint oscr=TCotulla::OstData();

 	TCotulla::SetOstMatch(KHwOstMatchGeneral, oscr + interval);

 	TCotulla::SetOstMatchEOI(KHwOstMatchGeneral);

 #endif

 	(*IsrVector)(IsrCount++);

 	}

 #ifdef __ISR_SUPPORTED__

 void start_timer(void)

 	{

 #if defined(__MISA__) 

 	// for SA11x0 use OST match 0

 	TInt r=Interrupt::Bind(KIntIdOstMatchGeneral, &timer_isr, 0);

 	assert(r==KErrNone);

 	TSa1100::ModifyIntLevels(0,KHtIntsOstMatchGeneral);	// route new timer interrupt to FIQ

 	TSa1100::SetOstMatchEOI(KHwOstMatchGeneral);

 	TUint oscr=TSa1100::OstData();

 	TSa1100::SetOstMatch(KHwOstMatchGeneral, oscr + 5000);

 	TSa1100::EnableOstInterrupt(KHwOstMatchGeneral);

 	Interrupt::Enable(KIntIdOstMatchGeneral);

 #elif defined(__MCOT__)

 	// for SA11x0 use OST match 0

 	TInt r=Interrupt::Bind(KIntIdOstMatchGeneral, &timer_isr, 0);

 	assert(r==KErrNone);

 	TCotulla::ModifyIntLevels(0,KHtIntsOstMatchGeneral);	// route new timer interrupt to FIQ

 	TCotulla::SetOstMatchEOI(KHwOstMatchGeneral);

 	TUint oscr=TCotulla::OstData();

 	TCotulla::SetOstMatch(KHwOstMatchGeneral, oscr + 5000);

 	TCotulla::EnableOstInterrupt(KHwOstMatchGeneral);

 	Interrupt::Enable(KIntIdOstMatchGeneral);

 #endif

 	}

 #endif

 extern "C" int start_random_isr(isr_entry vector)

 	{

 	stop_random_isr();

 	IsrVector = vector;

 #ifdef __ISR_SUPPORTED__

 	start_timer();

 	return OK;

 #else

 	return KErrNotSupported;

 #endif

 	}

 extern "C" void stop_random_isr(void)

 	{

 #if defined(__MISA__) 

 	Interrupt::Disable(KIntIdOstMatchGeneral);

 	Interrupt::Unbind(KIntIdOstMatchGeneral);

 #elif defined(__MCOT__)

 	Interrupt::Disable(KIntIdOstMatchGeneral);

 	Interrupt::Unbind(KIntIdOstMatchGeneral);

 #endif

 	IsrVector = 0;

 	}