//**********************************************************************
//**********************************************************************
//**********************************************************************
//**                                                                  **
//**        (C)Copyright 1985-2013, American Megatrends, Inc.         **
//**                                                                  **
//**                       All Rights Reserved.                       **
//**                                                                  **
//**     5555 Oakbrook Pkwy, Building 200,Norcross, Georgia 30093     **
//**                                                                  **
//**                       Phone: (770)-246-8600                      **
//**                                                                  **
//**********************************************************************
//**********************************************************************
//*****************************************************************//
// $Archive: /Alaska/SOURCE/Modules/AMITSE2_0/AMITSE/Uefi2.1/FormBrowser2.c $
//
// $Author: Premkumara $
//
// $Revision: 35 $
//
// $Date: 8/28/14 12:24p $
//
//*****************************************************************//
//*****************************************************************//
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/AMITSE2_0/AMITSE/Uefi2.1/FormBrowser2.c $
// 
// 35    8/28/14 12:24p Premkumara
// [TAG] 	EIP175017
// [Category] Bug Fix
// [Severity:] Normal
// [Symptom:] Setup hangs when sendform called from oemdriverhealth module
// [Solution] 	TSE installs timer to read the keys in conin availability.
// This timer stopped in PostManagerHandshake but if mainsetuploop called
// from sendform then this timer not stopped so hang happened in different
// stages.So stopping timer properly resolves the issue.
// [Files] 	FormBrowser2.c
// 
// 34    2/11/14 8:50p Arunsb
// [TAG]	EIP147816
// [Category]	Bug Fix
// [Symptom]	Having same two formset with two different handles, confirm
// checkbox is grayed out in one formset not in other
// [Root Cause]	During BrowserCallback, the current context
// [gCurrVarHandle and gCurrVarIndex] is lost due to multiple pack updates
// within a single callback.
// [Solution]	Maintain a stack to preserve the current context values for
// (gCurrVarHandle and gCurrVarIndex) during BrowserCallback
// [Files]	FormBrowser2.c
// 
// 33    12/04/13 3:43p Premkumara
// [TAG]	EIP144581
// [Category]	Bug Fix
// [Severity:]	Important
// [Symptom:]	TSE gets Hangs when HiiLibSetBrowserData try to update
// LegacyDevOrder
// [Root Cause]	LegacyBootData is setting irrespective of valid options
// [Solution]	Validating LegacyBootData for valid options and save valid
// options.
// [Files]	FormBrowser2.c
// 
// 32    5/15/13 4:50a Premkumara
// [TAG]  		EIP123312 
// [Category]  	Bug Fix
// [Severity]  	Important
// [Symptom]  	Build error when token  TSE_DEBUG_MESSAGE is enabled
// [RootCause]  	Parameter missed to pass to a function  WriteDataToFile()
// [Solution]  	Passed valid parameter to WriteDataToFile()
// [Files]  		FormBrowser2.c
// 
// 31    4/18/13 2:23a Arunsb
// [TAG]  		EIP113266
// [Category]  	Improvement
// [Description]  	gBrowserCallbackEnabled variable moved to boot only
// module
// [Files]  		boot.c and FormBrowser2.c
// 
// 30    2/25/13 10:57a Blaines
// [TAG] - EIP 104273
// [Category] - Action Item
// [Description] -  Provide ability to dump the Hii Pack from the Setup as
// part TSE debug Infrastructure. It should dump the Pack updates on Hii
// notification also.
// So it can be used to debug the issue.
// [Files] - ForBrowser2.c,  Hii.c,  HiiNotificationHandler.c,
// UefiWapper.c,  TseUefiHii.h
// 
// 29    10/18/12 6:04a Arunsb
// Updated for 2.16.1235 QA submission
// 
// 12    10/10/12 12:41p Arunsb
// Synched the source for v2.16.1232, backup with Aptio
// 
// 27    9/20/12 11:15a Arunsb
// SendForm will operate only with SETUP_FORM_BROWSER_SUPPORT token
// enabled.
// 
// 26    5/29/12 3:10a Premkumara
// Added missing version-23 (EIP-90895) changes
// 
// 25    5/28/12 9:55a Premkumara
// Added missing version-23 (EIP-90895) changes
// 
// 24    5/28/12 5:56a Premkumara
// [TAG]  		EIP75236
// [Category]  	Improvement
// [Description]  	Add the support to control the GOP dependency in TSE
// notification.
// [Files]  		AMITSE.sdl, CommonHelper.c, Notify.c, Minisetup.h,
// Minisetup.sdl, protocol.c, FormBrowser.c, FormBrowser2.c
// 
// 23    5/26/12 5:35a Arunsb
// [TAG]  		EIP90895
// [Category]  	Bug Fix
// [Severity]  	Normal
// [Symptom]  	Setup hangs when retrieve callback produces
// add/remove/update forms
// [RootCause]  	Callback with retrieve action produces add/remove/update
// form
// [Solution]  	If retrieve callback produces add/remove/update form then
// TSE will print debug messages and assert.
// [Files]  		HiiNotificationHandler.c, HiiCallback.c and FormBrowser2.c
// 
// 22    2/03/12 1:31p Arunsb
// [TAG]  		EIP81617 
// [Category]  	Improvement
// [Description]  	Avoiding memory leaks in TSE
// [Files]  		hiistring21.c, CommonHelper.c, notify.c and formbrowser2.c
// 
// 21    1/20/12 5:33a Rajashakerg
// [TAG]  		EIP75567
// [Category]  	Improvement
// [Description]  	Provide ActionRequest in SendForm function
// [Files]  		FormBrowser2.c
// 
// 20    12/07/11 3:31p Arunsb
// [TAG]  		EIP75588
// [Category]  	New Feature
// [Description]  	Support for queuing UpdatePack notifications
// [Files]  		frame.c, page.c, formbrowser2.c, hii.c, hiicallback.c,
// hiinotificationhandler.c, tseuefihii.h and uefi21wapper.c
// 
// 19    12/07/11 8:12a Rajashakerg
// [TAG]  		EIP75118 
// [Category]  	Improvement
// [Description]  	xtractConfig() fail since BrowserCallback() cannot find
// the variable to process
// [Files]  		FormBrowser2.c, FormBrowser2.h, HiiCallback.c,
// Uefi21Wapper.c, PopupSel.c
// 
// 18    12/05/11 5:53a Rajashakerg
// [TAG]  		EIP76381 
// [Category]  	Improvement
// [Description]  	Performance: Improving variable data load and usage
// [Files]  		callback.c, minisetupext.c, variable.c, variable.h,
// minisetup.h, Hii.c, FormBrowser2.c
// 
// 17    11/30/11 1:37p Premkumara
// [TAG]  		EIP75352
// [Category]  	Improvement
// [Description]  	Suppress the warnings from static code analyzer
// [Files]  		Boot.c, bbs.c, TseAdvanced.c, Special.c, Variable.c,
// TseLiteHelper.c, PopupSel.c, AddBootOption.c, Hii.c, FormBrowser2.c
// 
// 16    11/28/11 2:27a Premkumara
// [TAG]  		EIP75384 
// [Category]  	Improvement
// [Description]  	Suppress the warnings from static code analyzer
// [Files]  		UefiWapper.c, Hii.c, Expression.c, CtrlCond.c, PopupSel.c,
// Minisetupext.c, Menu.c, Date.c, Ezport\Stylecommon.c,
// EzportPlus\StyleCommon.c,
// 
// 15    11/23/11 5:13a Rajashakerg
// [TAG]  		EIP75473 
// [Category]  	Improvement
// [Description]  	System Time is not updated every second
// [Files]  		variable.h, variable.c, FormBrowser2.c, TseUefiHii.h,
// Uefi21Wapper.c, hii.h, uefi20Wapper.c
// 
// 14    11/21/11 5:55a Rajashakerg
// [TAG]  		EIP74591
// [Category]  	Improvement
// [Description]  	Make MainSetupLoop as board module hook
// [Files]  		AMITSE.sdl, CommonHelper.c, protocol.c, minisetup.h,
// FormBrowser.c, FormBrowser2.c
// 
// 13    11/14/11 2:43p Blaines
// [TAG] - EIP 75481
// [Category]- Function Request
// [Synopsis]- TSE debug print infrastructure.
// [Description]- Add TSE debug print info for basic functions such as
// Hiiparsing, HiiNotifications, HiiCallbacks. Variables, and Ifrforms
// data. 
// [Files]
// AMITSE.sdl, AmiTSEStr.uni,  CommonHelper.c, commonoem.c, FakeTokens.c
// Globals.c, Minisetup.cif, Minisetup.h, print.c, FormBrowser2.c, Hii.c,
// HiiCallback.c, HiiNotificationHandler.c, Parse.c, TseUefiHii.h,
// Uefi21Wrapper.c, setupdbg.h
// 
// 12    11/08/11 4:50a Rajashakerg
// Lowered the TPL to Application level and invoked
// StyleUpdateVersionString() function to update the copy right string in
// the SendForm() function.
// 
// 11    6/30/11 11:55a Arunsb
// Adding config header in config string is controlled by
// EDKVersion_1_05_RetrieveData wrapper function.
// 
// 10    6/30/11 4:16a Arunsb
// [TAG]           EIP57661
// [Category]      New Feature
// [Description]   Boot manager algorithm for interaction with Driver
// Health protocol.
//                 gFSetGuid added to compare in parseform.
// [Files]         amitse.cif, amitse.sdl, faketokens.c, amitsestr.uni,
//                 commonhelper.c, uefisetup.ini, tsedrvhealth.h,
// amivfr.h, minisetupbin.mak,
//                 hiistring21.c, hiistring20.c, tseadvanced.c, special.c,
// special.h, boot.h, minisetup.h,
//                 uefi20wapper.c, formbrowser2.c, hii.c, parse.c and
// uefi21wapper.c.
// 
// 9     3/28/11 6:00p Madhans
// [TAG]  		EIP56247 
// [Category]  	Improvement
// [Description]  	To support BrowserCallback with ResultData=NULL.
// To to add EDK_1_05_RETRIEVE_DATA SDL on by default for UEFI OptionROM
// cards to work.
// Need Core changes if EDK_1_05_RETRIEVE_DATA=1. 
// EDK_1_05_RETRIEVE_DATA=0 May cause UEFI Option ROM card to not work ok.
// 
// [Files]  		Uefi21.sdl
// FormBrowser2.c
// 
// 8     12/02/10 5:51p Madhans
// [TAG] - EIP 48169    
// [Category]- Improvment.
// [Severity]- Mordarate
// [Symptom]- To do the Workaround for ConfigtoBlock issues and Fix issues
// with Retirive config.
// [Solution]- Fix done formBrowser2.c and uefi21wrapper.c 
// [Files] - formBrowser2.c and uefi21wrapper.c 
// 
// 7     9/16/10 8:38p Madhans
// Update for TSE 2.10. Refer Changelog.log for more details.
// 
// 9     9/15/10 1:55p Madhans
// To fix the issue with TSE when SetBrowser data is called. Without this
// fix always lastbyte of set browser data is missed.
// 
// 8     6/17/10 2:58p Madhans
// Exit safely when sendform is not supported.
// 
// 7     3/11/10 5:42p Madhans
// Coding Standards Update
//
// 6     2/26/10 6:57p Madhans
// To validate the Hii Handle before trying to process it.
//
// 5     2/19/10 8:35p Madhans
// Function header fix
//
// 4     1/12/10 11:10a Presannar
// Modified code to return BrowserCallback String according to either EDK
// browser or spec
//
// 3     1/08/10 4:43p Presannar
// Fixed BrowserCallback to return EFI_INVALID_PARAMETER when ResultsData
// is NULL and *ResultsDataSize != 0
//
// 2     11/19/09 5:28p Presannar
// Updated TSE include file name to not clash with CORE file
//
// 1     7/24/09 6:54p Presannar
//
// 3     3/31/09 4:15p Madhans
// UEFI Wrapper improvments.
//
// 2     1/29/09 6:06p Presannar
// Added Function Header Comments
//
// 1     1/09/09 2:38p Presannar
// UEFI 2.1 Hii Related Code - Initial Drop
//
// 1     12/29/08 4:46p Presannar
// FormBrowser2 protocol Send Form and BrowserCallback initial draft
//
//*************************************************************************
//<AMI_FHDR_START>
//
// Name:          FormBrowser2.C
//
// Description:
//
//<AMI_FHDR_END>
//*************************************************************************

//----------------------------------------------------------------------------
#include "Minisetup.h"
#include "FormBrowser2.h"
#include "TseUefiHii.h"
//----------------------------------------------------------------------------
extern BOOLEAN gPackUpdatePending;
extern BOOLEAN gEnableDrvNotification; //TRUE if allow notification function to process action, FALSE to ignore the notification
extern UINTN HpkFileCount;
//---------------------------------------------------------------------------
// Variables
//---------------------------------------------------------------------------
BOOLEAN gRequireSysReboot = FALSE; //EIP 75567 :If TRUE, ACTION_REQUEST_RESET will be returned from SendForm, else ignore reboot
VOID    **gSfHandles;
UINTN   gSfHandleCount;
EFI_GUID *gFSetGuid = NULL;
UINT8 *gSfNvMap;
extern BOOLEAN gBrowserCallbackEnabled; //EIP113266 Allow external drivers to change ASL cache only if it's TRUE; ignore browser callback otherwise
extern BOOLEAN gEnterSetup;
extern EFI_EVENT gKeyTimer;
EFI_BROWSER_ACTION gBrowserCallbackAction = 0 ;//Contains the BrowserCallback action when a callback is in progress.
//static CONTROL_INFO *gCallbackControl = NULL; unused
static EFI_HANDLE gCurrVarHandle = (EFI_HANDLE)NULL;
static UINT32 gCurrVarIndex = 0;
#define BROWSERCALLBACK_MAX_ENTRIES 10
static EFI_HANDLE  gCallBackHandleStack[BROWSERCALLBACK_MAX_ENTRIES]; //EIP-147816
static UINT32 gCallBackVarIndexStack[BROWSERCALLBACK_MAX_ENTRIES];//EIP-147816

EFI_GUID gEfiFormBrowser2ProtocolGuid = EFI_FORM_BROWSER2_PROTOCOL_GUID;

//---------------------------------------------------------------------------
// Structure
//---------------------------------------------------------------------------
EFI_FORM_BROWSER2_PROTOCOL FormBrowser2 =
{
  SendForm,
  BrowserCallback
};

//---------------------------------------------------------------------------
// Function Prototypes
//---------------------------------------------------------------------------
EFI_STATUS _StorageToConfigResp(VARIABLE_INFO *VariableInfo, VOID *Buffer, CHAR16 *ConfigHdr, CHAR16 **ConfigResp);
EFI_STATUS _ConfigRespToStorage(VARIABLE_INFO *varInfo, UINT8 **buffer, UINTN *Size, EFI_STRING configResp);
BOOLEAN EDKVersion_1_05_RetrieveData (VOID);
EFI_STATUS CleanNotificationQueue (VOID);
//---------------------------------------------------------------------------
// Function Implementation
//---------------------------------------------------------------------------

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure:	SetCallBackControlInfo
//
// Description:	Set the variable inforamtion
//
// Parameter:	EFI_HANDLE VarHandle - Variable handle to process
//              UINT32 VarIndex - Variable index in the gVariables->VariableList
//
// Return value:VOID
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID SetCallBackControlInfo(EFI_HANDLE VarHandle, UINT32 VarIndex)
{
    static int ContextVar=0;
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] Entering SetCallBackControlInfo, HIIHandle =%x \n\n", VarHandle ); 
    if(VarHandle != NULL){ //If the varaible handle is valid, set handle and variable index
        if(ContextVar >= BROWSERCALLBACK_MAX_ENTRIES)
        {
            SETUP_DEBUG_TSE ("\n[TSE] Too many nested Browser Callbacks!\n\n");
            ASSERT (0);    
        }
        gCurrVarHandle = VarHandle;
        gCurrVarIndex = VarIndex;
        //EIP-147816
        //Use Stack to manage gCurrVarHandle and gCurrVarIndex
        gCallBackHandleStack[ContextVar] = gCurrVarHandle;
        gCallBackVarIndexStack[ContextVar] = gCurrVarIndex;
        ContextVar++;
        
    } else{ //Else reset global the varaible handle and variable index
	
        if(ContextVar == 0)
            return;
                    
        ContextVar--;
        
        if(ContextVar == 0)
        {
            gCurrVarHandle = (EFI_HANDLE)NULL;
            gCurrVarIndex = 0;
        }else{
            //EIP-147816
            //Reset gCurrVarHandle and gCurrVarIndex to previous stack entry
            gCurrVarHandle = gCallBackHandleStack[ContextVar-1] ;
            gCurrVarIndex = gCallBackVarIndexStack[ContextVar-1] ;
        }
            
    }
    
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] Exiting SetCallBackControlInfo HIIHandle =%x \n\n", VarHandle ); 
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure:	InstallFormBrowserProtocol
//
// Description:	Install FormBrowser Protocol
//
// Parameter:	EFI_HANDLE Handle
//
// Return value:EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS InstallFormBrowserProtocol(EFI_HANDLE Handle)
{
  EFI_STATUS status = EFI_SUCCESS;

  UnInstallFormBrowserProtocol(Handle);
  status = gBS->InstallMultipleProtocolInterfaces (
                  &Handle,
                  &gEfiFormBrowser2ProtocolGuid,
                  &FormBrowser2,
                  NULL
                  );

  return status;
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure:	UnInstallFormBrowserProtocol
//
// Description:	UnInstall FormBrowser Protocol
//
// Parameter:	EFI_HANDLE Handle
//
// Return value:VOID
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID UnInstallFormBrowserProtocol(EFI_HANDLE Handle)
{
  EFI_STATUS status = EFI_SUCCESS;
  EFI_HANDLE handle;
  VOID *iface;
  UINTN size = 0;

  status = gBS->LocateHandle (
                    ByProtocol,
                    &gEfiFormBrowser2ProtocolGuid,
                    NULL,
                    &size,
                    &handle
                    );
  if(status == EFI_BUFFER_TOO_SMALL)
  {
    handle = EfiLibAllocateZeroPool(size);
    if (handle == NULL)
    {
      status = EFI_OUT_OF_RESOURCES;
      goto DONE;
    }

    status = gBS->LocateHandle (
                      ByProtocol,
                      &gEfiFormBrowser2ProtocolGuid,
                      NULL,
                      &size,
                      &handle
                      );
  }

  if(EFI_ERROR(status))
  {
    goto DONE;
  }
  status = gBS->LocateProtocol (
                    &gEfiFormBrowser2ProtocolGuid,
                    NULL,
                    &iface
                    );
  if(EFI_ERROR(status))
  {
    goto DONE;
  }
  status = gBS->UninstallMultipleProtocolInterfaces (
                  handle,
                  &gEfiFormBrowser2ProtocolGuid,
                  iface,
                  NULL
                  );

  if(EFI_ERROR(status))
  {
    goto DONE;
  }

DONE:
  return;
}

//<AMI_PHDR_START>
//---------------------------------------------------------------------------
// Procedure:   SendForm
//
// Description: This is the routine which an external caller uses to direct
//				the browser where to obtain it's information.
//
// Input:	EFI_FORM_BROWSER2_PROTOCOL *This - The Form Browser protocol instanse.
//          EFI_HII_HANDLE *Handles - A pointer to an array of Handles. If
//                  HandleCount > 1 we display a list of the formsets for the
//                  handles specified.
//          UINTN HandleCount - The number of Handles specified in Handle.
//          EFI_GUID *FormSetGuid [OPTIONAL] - This field points to the EFI_GUID
//                  which must match the Guid field in the EFI_IFR_FORM_SET
//                  op-code for the specified forms-based package. If
//                  FormSetGuid is NULL, then this function will display the
//                  first found forms package.
//          UINT16 FormId [OPTIONAL] - This field specifies which EFI_IFR_FORM
//                  to render as the first displayable page. If this field has
//                  a value of 0x0000, then the forms browser will render the
//                  specified forms in their encoded order.
//          EFI_SCREEN_DESCRIPTOR *ScreenDimenions [OPTIONAL] - Points to
//                  recommended form dimensions, including any non-content
//                  area, in characters. This allows the browser to be called
//                  so that it occupies a portion of the physical screen
//                  instead of dynamically determining the screen dimensions.
//          EFI_BROWSER_ACTION_REQUEST *ActionRequest [OPTIONAL] - Points to
//                  the action recommended by the form.
//
// Output:	EFI_STATUS status - EFI_SUCCESS, The function completed successfully.
//			EFI_INVALID_PARAMETER - One of the parameters has an invalid value.
//			EFI_NOT_FOUND - No valid forms could be found to display.
//---------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
EFIAPI
SendForm (
  IN  CONST EFI_FORM_BROWSER2_PROTOCOL *This,
  IN  EFI_HII_HANDLE                   *Handles,
  IN  UINTN                            HandleCount,
  IN  EFI_GUID                         *FormSetGuid, OPTIONAL
  IN  UINT16                           FormId, OPTIONAL
  IN  CONST EFI_SCREEN_DESCRIPTOR      *ScreenDimensions, OPTIONAL
  OUT EFI_BROWSER_ACTION_REQUEST       *ActionRequest  OPTIONAL
  )
{
	EFI_STATUS Status = EFI_SUCCESS;
	UINTN i;
	BOOLEAN BackUpgEnterSetup = FALSE;

#if !SETUP_FORM_BROWSER_SUPPORT
	SETUP_DEBUG_TSE ("[TSE] SendForm not supported with SETUP_FORM_BROWSER_SUPPORT token disabled\n");
	return EFI_UNSUPPORTED;
#endif

	if(gApp != NULL || gSetupContextActive)
	{
		// Inside Setup. Setupdata contexts valid.
		UINT8 Sel=0;
		
		AMI_POST_MANAGER_PROTOCOL 	*PostMgr = NULL;
		    	
		Status = gBS->LocateProtocol(&gAmiPostManagerProtocolGuid, NULL,(void**) &PostMgr);
		if(Status == EFI_SUCCESS)
		{
			//PostManagerDisplayMsgBox (L"SendForm Unsupported",L"SendForm Not suppored Nestedly or from Valid Setup Context!",MSGBOX_TYPE_OK,&Sel);
			PostMgr->DisplayMsgBox(  L"SendForm Unsupported",  L"SendForm Not suppored Nestedly or from Valid Setup Context!", MSGBOX_TYPE_OK,NULL);
		}
		return EFI_UNSUPPORTED;
	}

	if( Handles == NULL || HandleCount == 0 )
	{
		Status = EFI_INVALID_PARAMETER;
		goto DONE;
	}

#ifndef STANDALONE_APPLICATION
    if ( ! gConsoleControl )
    {
        //All necessary protocols are not available yet.
        //We can still proceed if Uga Draw is the only protocol not available yet.
        ActivateApplication();

			if (!IsDelayLogoTillInputSupported())	//EIP-75236
				ActivateInput();
    }
#endif

	//Initialize send form global variables
	if(HandleCount)
	{
		gSfHandles = EfiLibAllocateZeroPool( HandleCount * sizeof(VOID*));
		gSfHandleCount = 0;
        gFSetGuid = FormSetGuid;
		for(i=0;i<HandleCount;i++)
		{
			UINT8 *FormSet = NULL;
			UINTN Length = 0;

			// Check if the Handle Has Forms to Display
			FormSet = HiiGetForm( Handles[i], 0, &Length);
			if( FormSet != NULL )
			{
				gSfHandles[gSfHandleCount] = (VOID*)(UINTN)Handles[i];
				MemFreePointer( &FormSet );
				gSfHandleCount++;
			}
		}
		if( gSfHandleCount == 0 )
		{
			MemFreePointer( (VOID**)&gSfHandles );
			Status = EFI_NOT_FOUND;
			goto DONE;
		}
	}
	gSfNvMap = NULL;//NvMapOverride;

    if(!gVariableList)
	{
	    CleanTempNvramVariableList();//EIP 76381 : Reset to read the variable from NVRAM
        VarLoadVariables( (VOID **)&gVariableList, NULL );
	}
	// this *MUST* be run a EFI_TPL_APPLICATION
	gBS->RaiseTPL( EFI_TPL_HIGH_LEVEL );	// guarantees that RestoreTPL won't ASSERT
	gBS->RestoreTPL( EFI_TPL_APPLICATION );

	StyleUpdateVersionString();

	//Show forms
	Status = gST->ConIn->Reset( gST->ConIn, FALSE );
	BackUpgEnterSetup = gEnterSetup; //EIP-175017
	if (gKeyTimer)
	{
		TimerStopTimer( &gKeyTimer );
	}
	Status = MainSetupLoopHook();//EIP74591 : Modified MainSetupLoop as board module hook
	gEnterSetup = BackUpgEnterSetup;

	//Reset send form global variables
	//gSfHandles = (VOID**)NULL;
	MemFreePointer( (VOID**)&gSfHandles );
	gSfHandles = NULL;

	gSfHandleCount = 0;
	gSfNvMap = NULL;

DONE:

	if(gRequireSysReboot){ //EIP 75567 : If system reboot was set, return ACTION_REQUEST_RESET
		if(ActionRequest)
			*ActionRequest = EFI_BROWSER_ACTION_REQUEST_RESET;
		gRequireSysReboot = FALSE; //EIP 75567  :Reset system reboot variable
	}
	if(gPackUpdatePending) //If IFR notifications are pending clear the queue before exiting SendForm
	{
		CleanNotificationQueue();
	}
	gPackUpdatePending = FALSE;
	CleanTempNvramVariableList();//EIP 76381 : Reset to read the variable from NVRAM
	return Status;
}

//<AMI_PHDR_START>
//---------------------------------------------------------------------------
// Procedure:   BrowserCallback
//
// Description: This function is called by a callback handler to retrieve
//              uncommitted state data from the browser.
//
// Input:   
//          IN CONST EFI_FORM_BROWSER2_PROTOCOL *This - A pointer to the
//                  EFI_FORM_BROWSER2_PROTOCOL instance.
//          IN OUT UINTN *ResultsDataSize - A pointer to the size of the
//                  buffer associated with ResultsData.
//          IN OUT EFI_STRING ResultsData - A string returned from an IFR
//                  browser or equivalent. The results string will have no
//                  routing information in them.
//          IN BOOLEAN RetrieveData - A BOOLEAN field which allows an agent
//                  to retrieve (if RetrieveData = TRUE) data from the
//                  uncommitted browser state information or set 
//                  (if RetrieveData = FALSE) data in the uncommitted browser
//                  state information.
//          IN CONST EFI_GUID *VariableGuid, OPTIONAL - An optional field to
//                  indicate the target variable GUID name to use.
//          IN CONST CHAR16 *VariableName  OPTIONAL - An optional field to
//                  indicate the target human-readable variable name.
//
// Output:  EFI_STATUS status - EFI_SUCCESS, The results have been distributed
//                          or are awaiting distribution.
//                              EFI_BUFFER_TOO_SMALL, The ResultsDataSize
//                          specified was too small to contain the results data.
//---------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
EFIAPI
BrowserCallback (
  IN CONST EFI_FORM_BROWSER2_PROTOCOL  *This,
  IN OUT UINTN                         *ResultsDataSize,
  IN OUT EFI_STRING                    ResultsData,
  IN BOOLEAN                           RetrieveData,
  IN CONST EFI_GUID                    *VariableGuid, OPTIONAL
  IN CONST CHAR16                      *VariableName  OPTIONAL
  )
{
  EFI_STATUS    status = EFI_SUCCESS;
  CONTROL_INFO  *ctrlInfo = NULL;
  VARIABLE_INFO *varInfo = NULL;
  BOOLEAN       found;
  CHAR16        *configResp = NULL;
  CHAR16        *strPtr = NULL;
  CHAR16        *configHdr = NULL;
  UINT8         *buffer = NULL;
  UINTN         bufferSize;
  UINTN         size = 0;
  UINTN         length = 0;
  UINT32         varIndex = 0;
  UINT32         index = 0;
  UINT16		CurrentBootOption = 0;

	if((gBrowserCallbackEnabled == FALSE) && (gEnableDrvNotification == FALSE)) { 	//Allow Browser callback for AMI ExecuteCallback/AccessConfig/RouteConfig calls
		status = EFI_UNSUPPORTED;
		goto DONE;
	}

	if(ResultsDataSize == NULL || (*ResultsDataSize && ResultsData == NULL))
	{
		status = EFI_INVALID_PARAMETER;
		goto DONE;
	}
	
	SETUP_DEBUG_UEFI_CALLBACK ( "[TSE] Entering BrowserCallback()\n\n" );

  //
  // Find target storage
  //
  if(VariableGuid != NULL)
  {
    //
    // Try to find target storage
    //
    found = FALSE;
    for(index = 0; index < gVariables->VariableCount; index++)
    {
		varInfo = (VARIABLE_INFO *)VarGetVariableInfoIndex(index);
		//EIP-75352 Suppress the warnings from static code analyzer
		if(NULL == varInfo){
			continue;
		}
      if(EfiCompareGuid(&varInfo->VariableGuid, (EFI_GUID *)VariableGuid))
      {
        if(((varInfo->ExtendedAttibutes & VARIABLE_ATTRIBUTE_EFI_VARSTORE) != VARIABLE_ATTRIBUTE_EFI_VARSTORE) &&
          ((varInfo->ExtendedAttibutes & VARIABLE_ATTRIBUTE_NAMEVALUE) != VARIABLE_ATTRIBUTE_NAMEVALUE))
        {
          //
          // Buffer storage require both GUID and Name
          //
          if (VariableName == NULL)
          {
            status = EFI_NOT_FOUND;
            goto DONE;
          }

          if (EfiStrCmp (varInfo->VariableName, (CHAR16 *)VariableName) == 0)
          {
				found = TRUE;
				varIndex = index;
				SETUP_DEBUG_UEFI_CALLBACK ( "[TSE] Comparing gCurrVarHandle = %x to variableHandle %x\n\n", gCurrVarHandle, varInfo->VariableHandle  );
				if (varInfo->VariableHandle == gCurrVarHandle)					//Checking for same variable names for two different handles, if match not found continue with default
				{
	            break;
				}
          }
        }
      }
    }

    if (!found)
    {
      status = EFI_NOT_FOUND;
      goto DONE;
    }
	else						//If gCurrVarHandle is not matched then varInfo will have last index data so again filling VarInfo
	{
		//Updating the varinfo with the varIndex
		varInfo = (VARIABLE_INFO *)VarGetVariableInfoIndex(varIndex);
	}	
  } else
  {
    // GUID/Name is not specified, store variable index
    varIndex = gCurrVarIndex;
    varInfo = (VARIABLE_INFO *)VarGetVariableInfoIndex(varIndex);
  }
	//EIP-75352 Suppress the warnings from static code analyzer
	if (NULL == varInfo){
		goto DONE;
	}


  if((varInfo->ExtendedAttibutes & VARIABLE_ATTRIBUTE_EFI_VARSTORE) == VARIABLE_ATTRIBUTE_EFI_VARSTORE)
  {
    status = EFI_INVALID_PARAMETER;
    goto DONE;
  }

  //
  //  Retrive NVRam Buffer
  //
  buffer = (UINT8 *)VarGetVariable(varIndex, &size);
  if(buffer == NULL)
  {
    goto DONE;
  }

  //
  // Generate <ConfigHdr>
  //
  SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] GetConfigHeader()\n" );  
  status = GetConfigHeader(varInfo, &configHdr, &length);
  SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] GetConfigHeader retuned,  status = 0x%x \n\n" , status );    
	if(EFI_ERROR(status) || (NULL == configHdr))//EIP-75384 Static code
	{
		goto DONE;
	}

  if(RetrieveData)
  {
    //
    // Generate <ConfigResp>
    //
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] _StorageToConfigResp()\n" );  
    status = _StorageToConfigResp(varInfo, buffer, configHdr, &configResp);
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] _StorageToConfigResp returned,  status = 0x%x \n\n" , status ); 
    if (EFI_ERROR(status))
    {
       goto DONE;
    }

    //
    // Skip <ConfigHdr> and '&' to point to <ConfigBody>
    //
    if (EDKVersion_1_05_RetrieveData ())
    {
        strPtr = configResp + EfiStrLen (configHdr) + 1;
    }
    else
    {
        strPtr = configResp;
    }
    bufferSize = EfiStrSize (strPtr);
    if (*ResultsDataSize < bufferSize)
    {
      *ResultsDataSize = bufferSize;

     // gBS->FreePool (configResp);
      status = EFI_BUFFER_TOO_SMALL;
      goto DONE;
    }

    *ResultsDataSize = bufferSize;
    EfiCopyMem (ResultsData, strPtr, bufferSize);

    SETUP_DEBUG_UEFI_CALLBACK ( "[TSE] Displaying Retrieve Data Buffer, VariableName: %s, VariableHandle: 0x%x\n\n", varInfo->VariableName, varInfo->VariableHandle  );

#if TSE_DEBUG_MESSAGES
    DebugShowBufferContent(bufferSize, ResultsData);
#endif

    //gBS->FreePool(configResp);
  } else
  {
    //
    // Prepare <configResp>
    //

#if TSE_DEBUG_MESSAGES
	{
		CHAR16 BrowserCallbackFilename[50];		
		CHAR16 BrowserCallbackContent[200];
		CHAR16 *BrowserCallbackBuffer = NULL ;
		UINTN Len=0;
	
  		
		SPrint(BrowserCallbackFilename,50,L"BROWSERCALLBACK_%s_%03d.txt", varInfo->VariableName, HpkFileCount);
		SPrint(BrowserCallbackContent, 200, L"VariableName: %s\nVariableGuid: %g\nResultsDataSize: 0x%x\n", VariableName, &VariableGuid, *ResultsDataSize);
		Len = (EfiStrLen (BrowserCallbackContent) + EfiStrLen (ResultsData) + 1) * sizeof (CHAR16);
		BrowserCallbackBuffer = EfiLibAllocateZeroPool (Len);

		if (BrowserCallbackBuffer != NULL)
		{
			EfiStrCpy (BrowserCallbackBuffer, BrowserCallbackContent);
			EfiStrCat (BrowserCallbackBuffer, ResultsData);

    		status = WriteDataToFile(BrowserCallbackFilename, BrowserCallbackBuffer, Len,0) ;//EIP-123312 resolve build issue
			if (!EFI_ERROR (status))
			{
				HpkFileCount++ ;
			}

			MemFreePointer(&BrowserCallbackBuffer);
		}
	}
#endif

	
    bufferSize = (EfiStrLen (ResultsData) + EfiStrLen (configHdr) + 2) * sizeof (CHAR16);
    configResp = EfiLibAllocateZeroPool (bufferSize);
    ASSERT (configResp != NULL);

    EfiStrCpy (configResp, configHdr);
    EfiStrCat (configResp, L"&");
    EfiStrCat (configResp, ResultsData);

    //
    // Update Browser uncommited data
    //
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] _ConfigRespToStorage()\n" );  
    status = _ConfigRespToStorage (varInfo, &buffer, &size, configResp);
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] _ConfigRespToStorage returned,   status = 0x%x \n\n" , status );
    
    if (EFI_ERROR (status))
    {
		goto DONE;
    }

    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] Displaying Browser Uncommited Data Buffer, VariableName: %s, VariableHandle: 0x%x\n\n", varInfo->VariableName, varInfo->VariableHandle  );

#if TSE_DEBUG_MESSAGES
    DebugShowBufferContent(size, buffer);
#endif

    SETUP_DEBUG_UEFI_CALLBACK (  "\n[TSE] Updating Browser Uncommited Data\n" );
    if (varIndex == VARIABLE_ID_BBS_ORDER)
    {
		if(gCurrLegacyBootData)
		{
			UINT16 CurLegBootDataValid = 0;
			UINT32 i;
			for (i = 0; i < gBootOptionCount; i++ )
			{
				if ( &gBootData[i] == gCurrLegacyBootData )
					CurLegBootDataValid = 1;
			}
			if(CurLegBootDataValid)
				CurrentBootOption = gCurrLegacyBootData->Option;
			else
				gCurrLegacyBootData = NULL;
		}
		gCurrLegacyBootData = BootGetBootData(CurrentBootOption);
		if(gCurrLegacyBootData)
			status = VarSetValue(varIndex, 0, size, buffer);
    }
    else
    status = VarSetValue(varIndex, 0, size, buffer);
    SETUP_DEBUG_UEFI_CALLBACK (  "[TSE] Updating Browser Uncommited Data returned,  status = 0x%x \n\n" , status );
  }
DONE:
//MEMFREE
  if(configResp)
  {
    MemFreePointer(&configResp);
  }

  if(buffer)
  {
    MemFreePointer(&buffer);
  }

  if(configHdr)
  {
    MemFreePointer(&configHdr);
  }
  
  SETUP_DEBUG_UEFI_CALLBACK ( "\n[TSE] Exiting BrowserCallback(),  status = 0x%x \n\n" , status );  
      
  return status;
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure:	_StorageToConfigResp
//
// Description:
//
// Parameter:	VARIABLE_INFO *VariableInfo
//				VOID *Buffer
//				CHAR16 *ConfigHdr
//				CHAR16 **ConfigResp
//
// Return value:EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS _StorageToConfigResp(VARIABLE_INFO *VariableInfo, VOID *Buffer, CHAR16 *ConfigHdr, CHAR16 **ConfigResp)
{
  EFI_STATUS status = EFI_SUCCESS;
  EFI_STRING  Progress;
  CHAR16  *configHdr = NULL;
  UINTN   length = 0;

  length  = EfiStrLen(ConfigHdr) * sizeof(CHAR16);
  configHdr = (CHAR16*)EfiLibAllocateZeroPool(length + 2);
  if(configHdr == NULL)
  {
    status = EFI_OUT_OF_RESOURCES;
    goto DONE;
  }

  MemCopy(configHdr, ConfigHdr, length);

  //
  // Generate <BlockName>
  //
  status = GetBlockName(&configHdr, &length, VAR_ZERO_OFFSET, VariableInfo->VariableSize);
  if(EFI_ERROR(status))
  {
    goto DONE;
  }

  if((VariableInfo->ExtendedAttibutes & VARIABLE_ATTRIBUTE_NAMEVALUE) == VARIABLE_ATTRIBUTE_NAMEVALUE)
  {
    status = EFI_UNSUPPORTED;
    goto DONE;
  }else
  {
    //
    //  VARIABLE_ATTRIBUTE_VARSTORE
    //
    status = HiiInitializeProtocol();
    if(EFI_ERROR(status))
    {
      goto DONE;
    }

    status = gHiiConfigRouting->BlockToConfig(gHiiConfigRouting, configHdr, Buffer,
      VariableInfo->VariableSize, ConfigResp, &Progress);
  }

DONE:
  if(configHdr)			//EIP81617
  {
    MemFreePointer(&configHdr);
  }
  return status;
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure:	_ConfigRespToStorage
//
// Description:
//
// Parameter:	VARIABLE_INFO *VariableInfo
//				VOID **Buffer
//				UINTN *Size
//				EFI_STRING ConfigResp
//
// Return value:EFI_STATUS
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS _ConfigRespToStorage(VARIABLE_INFO *VariableInfo, UINT8 **Buffer, UINTN *Size, EFI_STRING ConfigResp)
{
  EFI_STATUS status = EFI_SUCCESS;

  if((VariableInfo->ExtendedAttibutes & VARIABLE_ATTRIBUTE_NAMEVALUE) == VARIABLE_ATTRIBUTE_NAMEVALUE)
  {
    status = EFI_UNSUPPORTED;
    goto DONE;
  }else
  {
    EFI_STRING stringPtr = NULL;
    EFI_STRING tempPtr = NULL;
    UINTN length = 0;
    UINT16 *sizeBuf = NULL;

    stringPtr = ConfigResp;
    //
    // Get Buffer data Size
    //
    for(stringPtr = ConfigResp; *stringPtr != 0 && EfiStrnCmp(stringPtr, L"&WIDTH=", EfiStrLen(L"&WIDTH=")) != 0; stringPtr++);
    stringPtr += EfiStrLen(L"&WIDTH=");
    tempPtr = stringPtr;
    for(; *stringPtr != 0 && EfiStrnCmp(stringPtr, L"&VALUE=", EfiStrLen(L"&VALUE=")) != 0; length++, stringPtr++);
    sizeBuf = (CHAR16*)EfiLibAllocateZeroPool(length + 1);
    if(sizeBuf == NULL)
	{
      status = EFI_OUT_OF_RESOURCES;
	  goto DONE;
	}
    EfiCopyMem(sizeBuf, tempPtr, length);
	status = GetHexStringAsBuffer(Buffer, sizeBuf);
    MemFreePointer(&sizeBuf);
    if(EFI_ERROR(status))
    {
      *Size = 0;
      goto DONE;
    }
    //
    //  Get Buffer Data
    //
    for(; *stringPtr != 0 && EfiStrnCmp(stringPtr, L"&VALUE=", EfiStrLen(L"&VALUE=")) != 0; stringPtr++);
    stringPtr += EfiStrLen(L"&VALUE=");
    status = GetHexStringAsBuffer(Buffer, stringPtr);
  }

DONE:
  return status;
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure	:	FormBrowserHandleValid
//
// Description	:	return True Browser is showing forms from SendForm interface.
//
// Input		:	none
//
// Output		:	BOOLEAN
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
BOOLEAN FormBrowserHandleValid(VOID)
{
#if SETUP_FORM_BROWSER_SUPPORT
	if(gSfHandles)
		return TRUE;
#endif
	return FALSE;
}

//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure	:	FormBrowserLocateSetupHandles
//
// Description	:	return Handles and count that is passed to SendForm interface.
//
// Input		:	OUT handleBuffer and count
//
// Output		:	Status
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS FormBrowserLocateSetupHandles(VOID*	**handleBuffer,UINT16 *count)
{
  EFI_STATUS status = EFI_SUCCESS;

#if SETUP_FORM_BROWSER_SUPPORT
  if(gSfHandles)
  {
    *handleBuffer = (VOID**)gSfHandles;
    *count = (UINT16)gSfHandleCount;
  }
  else
  {
    status =  EFI_NOT_FOUND;
  }
#else
  status = EFI_UNSUPPORTED;
#endif
  return status;
}
//**********************************************************************
//**********************************************************************
//**                                                                  **
//**        (C)Copyright 1985-2013, American Megatrends, Inc.         **
//**                                                                  **
//**                       All Rights Reserved.                       **
//**                                                                  **
//**     5555 Oakbrook Pkwy, Building 200,Norcross, Georgia 30093     **
//**                                                                  **
//**                       Phone: (770)-246-8600                      **
//**                                                                  **
//**********************************************************************
//**********************************************************************