// Copyright (c) 2005-2009 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:

 // invoke the USB mass storage application

 // 

 //

 /**

  @file

 */

 #include <e32const.h>

 #include <e32const_private.h>

 #include <e32std.h>

 #include <e32std_private.h>

 #include <e32svr.h>

 #include <e32cons.h>

 #include <f32file.h>

 #include <hal.h>

 #include <u32hal.h>

 #include "bootloader_variantconfig.h"

 #include <nkern/nk_trace.h>

 #include <e32twin.h>

 #define FILE_ID	0x594D555D

 #include "bootldr.h"

 GLDEF_C TBool StartUSBMS()

 	{

 	RFs fs;

 	TInt r = fs.Connect();

 	if (r != KErrNone)

 		{

 		// BOOTFAULT

 		RDebug::Print(_L("FAULT: Connecting RFs returned %d\r\n"), r);

 		BOOT_FAULT();

 		}

 	TInt drive;

 	RFs::CharToDrive('D', drive);		// XXX variant constant drivepath

 	TDriveInfo info;

 	r = fs.Drive(info, drive);

 	if (r != KErrNone)

 		{

 		// BOOTFAULT

 		RDebug::Print(_L("FAULT: Calling Drive() on RFs returned %d\r\n"), r);

 		BOOT_FAULT();

 		}

 	if (info.iType == EMediaNotPresent)

 		{

 		return EFalse;

 		}

 	LoadDevice = ELoadUSBMS;

 	WriteConfig();

 	RProcess proc;

 	TName command = _L("D");

 	r = proc.Create(_L("z:\\sys\\bin\\usbboot.exe"), command);

 	if (r != KErrNone)

 		{

 		// BOOTFAULT

 		RDebug::Print(_L("FAULT: error starting usbboot %d\r\n"), r);

 		BOOT_FAULT();

 		}

 	proc.Resume();

 	return ETrue;

 	}

 GLDEF_C void TryUSBMS()

 	{

 	// Check first whether this boot is intended to load and boot an image from

 	// the media.

 	if (LoadDevice == EBootUSBMS)

 		{

 		PrintToScreen(_L("USB-MS boot scanning drives\r\n"));

 		// search drives for file - returns true if an image has been found

 		if (SearchDrives())

 			DoDownload();

 		}

 	PrintToScreen(_L("Starting USB Mass Storage\r\n"));

 	DisableMenu();

 	if(StartUSBMS())

 		{

 		// USB Mass Storage boot has started - don't continue with the

 		// bootloader, sleep here.

 		while(1)

 			User::After(10000000);

 		}

 	else

 		{

 		EnableMenu();

 		// Not started (probably no card in drive) revert to normal bootloader

 		// mode and notify the variant to rewrite it's configuration.

 		PrintToScreen(_L("NO VALID MEDIA\r\n"));

 		PrintToScreen(_L("Leaving USB Mass Storage mode\r\n"));

 		LoadDevice = ELoadDrive;

 		WriteConfig();

 		}

 	return;

 	}