// 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;

	}