1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32\memmodel\emul\win32\zrom.cpp

    15 // Emulator implementation of the ROM related parts of the system

    16 // 

    17 //

    18 

    19 #include "plat_priv.h"

    20 #include <property.h>

    21 #include <emulator.h>

    22 #include "memmodel.h"

    23 

    24 const char* KVariantDllName="ecust.dll";

    25 

    26 TInt P::DefaultInitialTime()

    27 	{

    28 //

    29 // Not used on emulator

    30 //

    31 	return KErrGeneral;

    32 	}

    33 

    34 TInt P::InitSystemTime()

    35 	{

    36 //

    37 //  Initialise system time

    38 //	Return the initial time in seconds from 00:00:00 01-01-2000

    39 //

    40 	TUint dummy;

    41 	K::SetSystemTimeAndOffset(0, 0, 0, dummy, ETimeSetOffset|ETimeSetNoTimeUpdate);

    42 

    43 	__KTRACE_OPT(KBOOT,Kern::Printf("Use Host time to set system time"));

    44     TInt seconds;

    45 	A::SystemTimeInSecondsFrom2000(seconds);

    46 	return seconds;

    47 	}

    48 

    49 

    50 void P::CreateVariant()

    51 	{

    52 	__KTRACE_OPT(KBOOT,Kern::Printf("CreateVariant"));

    53 	HINSTANCE var = LoadLibraryA(KVariantDllName);

    54 	if (var)

    55 		{

    56 		TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(var, "_E32Dll");

    57 		if (entryPoint)

    58 			{

    59 			__KTRACE_OPT(KBOOT,Kern::Printf("Found variant"));

    60 			// Call the entry point (global constructors)

    61 			__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint %08x",entryPoint));

    62 			TInt r=entryPoint(KModuleEntryReasonVariantInit0);

    63 			__KTRACE_OPT(KBOOT,Kern::Printf("Entrypoint returned %d",r));

    64 			if (r<0)

    65 				Kern::Fault("VariantEntry",r);

    66 

    67 			// Initialise and create the variant object

    68 			r=A::CreateVariant(var, r);

    69 			if (r<0)

    70 				Kern::Fault("VariantInit",r);

    71 			__KTRACE_OPT(KBOOT,Kern::Printf("Variant installed"));

    72 

    73 			BTrace::Init0(); // we have to do this after variant has initialised the SuperPage

    74 			return;

    75 			}

    76 		}

    77 	Kern::Fault("NoVariant",0);

    78 	}

    79 

    80 

    81 TInt StartExtension(const char* aExtension)

    82 	{

    83 	HINSTANCE ext;

    84  	HMODULE mh;

    85  	if (*aExtension == '?')

    86  		{

    87  		ext = LoadLibraryA(++aExtension);

    88  		if (!ext)

    89  			{

    90  			__KTRACE_OPT(KBOOT, Kern::Printf("Optional extension \"%s\" not found", aExtension));

    91  			return KErrNone;

    92  			}

    93  		}

    94  	else

    95  		{

    96  		ext = LoadLibraryA(aExtension);

    97  		if (!ext)

    98  			return KErrNotFound;

    99  		}		

   100  	mh = GetModuleHandleA(aExtension);	

   101 	TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(ext, "_E32Dll");

   102 	if (!entryPoint)

   103 		return KErrArgument;

   104 	TInt r=entryPoint(KModuleEntryReasonExtensionInit0);

   105 	if (r!=KErrNone)

   106 		{

   107 		__KTRACE_OPT(KBOOT,Kern::Printf("Extension %s already started", aExtension));

   108 		return KErrNone;

   109 		}

   110 	DCodeSeg::Wait();

   111 	r=MM::RegisterModule(mh);

   112 	DCodeSeg::Signal();

   113 	if (r!=KErrNone)

   114 		return r;

   115 	__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint of %s extension ", aExtension));

   116 	return entryPoint(KModuleEntryReasonExtensionInit1);

   117 	}

   118 

   119 

   120 void P::StartExtensions()

   121 	{

   122 	HMODULE mh = GetModuleHandleA(KVariantDllName);

   123 	TInt r = MM::RegisterModule(mh);

   124 	const char* extension = NULL;

   125 	if (r==KErrNone)

   126 		extension = Property::GetString("Extension");

   127 	if (extension)

   128 		{

   129 		for (;;)

   130 			{

   131 			char name[128];

   132 			const char* end = strchr(extension, ';');

   133 			if (!end)

   134 				break;

   135 			strncpy(name, extension, end-extension);

   136 			name[end-extension] = '\0';

   137 			if (strchr(name, '.') == NULL)

   138 				strcat(name, ".dll");

   139 			r = StartExtension(name);

   140 			if (r != KErrNone)

   141 				break;

   142 			extension = end+1;

   143 			}

   144 		if (r==KErrNone)

   145 			r = StartExtension(extension);

   146 		}

   147 	if (r != KErrNone)

   148 		K::Fault(K::EStartExtensionsFailed);

   149 	}