CloverBootloader/MdeModulePkg/Library/BootMaintenanceManagerUiLib/UpdatePage.c

/** @file
Dynamically update the pages.

Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include "BootMaintenanceManager.h"

/**
 Create the global UpdateData structure.

**/
VOID
CreateUpdateData (
  VOID
  )
{
  //
  // Init OpCode Handle and Allocate space for creation of Buffer
  //
  mStartOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (mStartOpCodeHandle != NULL);

  mEndOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (mEndOpCodeHandle != NULL);

  //
  // Create Hii Extend Label OpCode as the start opcode
  //
  mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (mStartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
  mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;

  //
  // Create Hii Extend Label OpCode as the end opcode
  //
  mEndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (mEndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
  mEndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
  mEndLabel->Number       = LABEL_END;
}

/**
  Refresh the global UpdateData structure.

**/
VOID
RefreshUpdateData (
  VOID
  )
{
  //
  // Free current updated date
  //
  if (mStartOpCodeHandle != NULL) {
    HiiFreeOpCodeHandle (mStartOpCodeHandle);
  }

  //
  // Create new OpCode Handle
  //
  mStartOpCodeHandle = HiiAllocateOpCodeHandle ();

  //
  // Create Hii Extend Label OpCode as the start opcode
  //
  mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (mStartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
  mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;

}

/**
  Add a "Go back to main page" tag in front of the form when there are no
  "Apply changes" and "Discard changes" tags in the end of the form.

  @param CallbackData    The BMM context data.

**/
VOID
UpdatePageStart (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  RefreshUpdateData ();
  mStartLabel->Number = CallbackData->BmmCurrentPageId;

  if (!(CallbackData->BmmAskSaveOrNot)) {
    //
    // Add a "Go back to main page" tag in front of the form when there are no
    // "Apply changes" and "Discard changes" tags in the end of the form.
    //
    HiiCreateGotoOpCode (
      mStartOpCodeHandle,
      FORM_MAIN_ID,
      STRING_TOKEN (STR_FORM_GOTO_MAIN),
      STRING_TOKEN (STR_FORM_GOTO_MAIN),
      0,
      FORM_MAIN_ID
      );
  }
}

/**
  Create the "Apply changes" and "Discard changes" tags. And
  ensure user can return to the main page.

  @param CallbackData    The BMM context data.

**/
VOID
UpdatePageEnd (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  //
  // Create the "Apply changes" and "Discard changes" tags.
  //
  if (CallbackData->BmmAskSaveOrNot) {
    HiiCreateSubTitleOpCode (
      mStartOpCodeHandle,
      STRING_TOKEN (STR_NULL_STRING),
      0,
      0,
      0
      );

    HiiCreateActionOpCode (
      mStartOpCodeHandle,
      KEY_VALUE_SAVE_AND_EXIT,
      STRING_TOKEN (STR_SAVE_AND_EXIT),
      STRING_TOKEN (STR_NULL_STRING),
      EFI_IFR_FLAG_CALLBACK,
      0
      );
  }

  //
  // Ensure user can return to the main page.
  //
  HiiCreateActionOpCode (
    mStartOpCodeHandle,
    KEY_VALUE_NO_SAVE_AND_EXIT,
    STRING_TOKEN (STR_NO_SAVE_AND_EXIT),
    STRING_TOKEN (STR_NULL_STRING),
    EFI_IFR_FLAG_CALLBACK,
    0
    );

  HiiUpdateForm (
    CallbackData->BmmHiiHandle,
    &mBootMaintGuid,
    CallbackData->BmmCurrentPageId,
    mStartOpCodeHandle, // Label CallbackData->BmmCurrentPageId
    mEndOpCodeHandle    // LABEL_END
    );
}

/**
  Clean up the dynamic opcode at label and form specified by both LabelId.

  @param LabelId         It is both the Form ID and Label ID for opcode deletion.
  @param CallbackData    The BMM context data.

**/
VOID
CleanUpPage (
  IN UINT16                           LabelId,
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  RefreshUpdateData ();

  //
  // Remove all op-codes from dynamic page
  //
  mStartLabel->Number = LabelId;
  HiiUpdateForm (
    CallbackData->BmmHiiHandle,
    &mBootMaintGuid,
    LabelId,
    mStartOpCodeHandle, // Label LabelId
    mEndOpCodeHandle    // LABEL_END
    );
}

/**
  Create a list of Goto Opcode for all terminal devices logged
  by TerminaMenu. This list will be inserted to form FORM_CON_COM_SETUP_ID.

  @param CallbackData    The BMM context data.
**/
VOID
UpdateConCOMPage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY       *NewMenuEntry;
  UINT16              Index;

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {
    NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Index);

    HiiCreateGotoOpCode (
      mStartOpCodeHandle,
      FORM_CON_COM_SETUP_ID,
      NewMenuEntry->DisplayStringToken,
      STRING_TOKEN (STR_NULL_STRING),
      EFI_IFR_FLAG_CALLBACK,
      (UINT16) (TERMINAL_OPTION_OFFSET + Index)
      );
  }

  UpdatePageEnd (CallbackData);
}


/**
  Create a list of boot option from global BootOptionMenu. It
  allow user to delete the boot option.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateBootDelPage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY   *NewMenuEntry;
  BM_LOAD_CONTEXT *NewLoadContext;
  UINT16          Index;

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  ASSERT (BootOptionMenu.MenuNumber <= (sizeof (CallbackData->BmmFakeNvData.BootOptionDel) / sizeof (CallbackData->BmmFakeNvData.BootOptionDel[0])));
  for (Index = 0; Index < BootOptionMenu.MenuNumber; Index++) {
    NewMenuEntry    = BOpt_GetMenuEntry (&BootOptionMenu, Index);
    NewLoadContext  = (BM_LOAD_CONTEXT *) NewMenuEntry->VariableContext;
    if (NewLoadContext->IsLegacy) {
      continue;
    }

    NewLoadContext->Deleted = FALSE;

    if (CallbackData->BmmFakeNvData.BootOptionDel[Index] && !CallbackData->BmmFakeNvData.BootOptionDelMark[Index]) {
      //
      // CallbackData->BmmFakeNvData.BootOptionDel[Index] == TRUE means browser knows this boot option is selected
      // CallbackData->BmmFakeNvData.BootOptionDelMark[Index] = FALSE means BDS knows the selected boot option has
      // deleted, browser maintains old useless info. So clear this info here, and later update this info to browser
      // through HiiSetBrowserData function.
      //
      CallbackData->BmmFakeNvData.BootOptionDel[Index] = FALSE;
      CallbackData->BmmOldFakeNVData.BootOptionDel[Index] = FALSE;
    }

    HiiCreateCheckBoxOpCode (
      mStartOpCodeHandle,
      (EFI_QUESTION_ID) (BOOT_OPTION_DEL_QUESTION_ID + Index),
      VARSTORE_ID_BOOT_MAINT,
      (UINT16) (BOOT_OPTION_DEL_VAR_OFFSET + Index),
      NewMenuEntry->DisplayStringToken,
      NewMenuEntry->HelpStringToken,
      EFI_IFR_FLAG_CALLBACK,
      0,
      NULL
      );
  }
  UpdatePageEnd (CallbackData);
}

/**
  Create a lit of driver option from global DriverMenu.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateDrvAddHandlePage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY *NewMenuEntry;
  UINT16        Index;

  CallbackData->BmmAskSaveOrNot = FALSE;

  UpdatePageStart (CallbackData);

  for (Index = 0; Index < DriverMenu.MenuNumber; Index++) {
    NewMenuEntry = BOpt_GetMenuEntry (&DriverMenu, Index);

    HiiCreateGotoOpCode (
      mStartOpCodeHandle,
      FORM_DRV_ADD_HANDLE_DESC_ID,
      NewMenuEntry->DisplayStringToken,
      STRING_TOKEN (STR_NULL_STRING),
      EFI_IFR_FLAG_CALLBACK,
      (UINT16) (HANDLE_OPTION_OFFSET + Index)
      );
  }

  UpdatePageEnd (CallbackData);
}

/**
  Create a lit of driver option from global DriverOptionMenu. It
  allow user to delete the driver option.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateDrvDelPage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY   *NewMenuEntry;
  BM_LOAD_CONTEXT *NewLoadContext;
  UINT16          Index;

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  ASSERT (DriverOptionMenu.MenuNumber <= (sizeof (CallbackData->BmmFakeNvData.DriverOptionDel) / sizeof (CallbackData->BmmFakeNvData.DriverOptionDel[0])));
  for (Index = 0; Index < DriverOptionMenu.MenuNumber; Index++) {
    NewMenuEntry            = BOpt_GetMenuEntry (&DriverOptionMenu, Index);

    NewLoadContext          = (BM_LOAD_CONTEXT *) NewMenuEntry->VariableContext;
    NewLoadContext->Deleted = FALSE;

    if (CallbackData->BmmFakeNvData.DriverOptionDel[Index] && !CallbackData->BmmFakeNvData.DriverOptionDelMark[Index]) {
      //
      // CallbackData->BmmFakeNvData.BootOptionDel[Index] == TRUE means browser knows this boot option is selected
      // CallbackData->BmmFakeNvData.BootOptionDelMark[Index] = FALSE means BDS knows the selected boot option has
      // deleted, browser maintains old useless info. So clear this info here, and later update this info to browser
      // through HiiSetBrowserData function.
      //
      CallbackData->BmmFakeNvData.DriverOptionDel[Index] = FALSE;
      CallbackData->BmmOldFakeNVData.DriverOptionDel[Index] = FALSE;
    }
    HiiCreateCheckBoxOpCode (
      mStartOpCodeHandle,
      (EFI_QUESTION_ID) (DRIVER_OPTION_DEL_QUESTION_ID + Index),
      VARSTORE_ID_BOOT_MAINT,
      (UINT16) (DRIVER_OPTION_DEL_VAR_OFFSET + Index),
      NewMenuEntry->DisplayStringToken,
      NewMenuEntry->HelpStringToken,
      EFI_IFR_FLAG_CALLBACK,
      0,
      NULL
      );
  }

  UpdatePageEnd (CallbackData);
}

/**
  Prepare the page to allow user to add description for
  a Driver Option.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateDriverAddHandleDescPage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY *NewMenuEntry;

  CallbackData->BmmFakeNvData.DriverAddActive          = 0x01;
  CallbackData->BmmFakeNvData.DriverAddForceReconnect  = 0x00;
  CallbackData->BmmAskSaveOrNot                        = TRUE;
  NewMenuEntry = CallbackData->MenuEntry;

  UpdatePageStart (CallbackData);

  HiiCreateSubTitleOpCode (
    mStartOpCodeHandle,
    NewMenuEntry->DisplayStringToken,
    0,
    0,
    0
    );

  HiiCreateStringOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) DRV_ADD_HANDLE_DESC_QUESTION_ID,
    VARSTORE_ID_BOOT_MAINT,
    DRV_ADD_HANDLE_DESC_VAR_OFFSET,
    STRING_TOKEN (STR_LOAD_OPTION_DESC),
    STRING_TOKEN (STR_NULL_STRING),
    0,
    0,
    6,
    75,
    NULL
    );

  HiiCreateCheckBoxOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) DRV_ADD_RECON_QUESTION_ID,
    VARSTORE_ID_BOOT_MAINT,
    DRV_ADD_RECON_VAR_OFFSET,
    STRING_TOKEN (STR_LOAD_OPTION_FORCE_RECON),
    STRING_TOKEN (STR_LOAD_OPTION_FORCE_RECON),
    0,
    0,
    NULL
    );

  HiiCreateStringOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) DRIVER_ADD_OPTION_QUESTION_ID,
    VARSTORE_ID_BOOT_MAINT,
    DRIVER_ADD_OPTION_VAR_OFFSET,
    STRING_TOKEN (STR_OPTIONAL_DATA),
    STRING_TOKEN (STR_NULL_STRING),
    0,
    0,
    6,
    75,
    NULL
    );

  UpdatePageEnd (CallbackData);
}

/**
  Update console page.

  @param UpdatePageId    The form ID to be updated.
  @param ConsoleMenu     The console menu list.
  @param CallbackData    The BMM context data.

**/
VOID
UpdateConsolePage (
  IN UINT16                           UpdatePageId,
  IN BM_MENU_OPTION                   *ConsoleMenu,
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY       *NewMenuEntry;
  BM_CONSOLE_CONTEXT  *NewConsoleContext;
  BM_TERMINAL_CONTEXT *NewTerminalContext;
  UINT16              Index;
  UINT16              Index2;
  UINT8               CheckFlags;
  UINT8               *ConsoleCheck;
  EFI_QUESTION_ID     QuestionIdBase;
  UINT16              VariableOffsetBase;

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  ConsoleCheck       = NULL;
  QuestionIdBase     = 0;
  VariableOffsetBase = 0;

  switch (UpdatePageId) {
  case FORM_CON_IN_ID:
    ConsoleCheck       = &CallbackData->BmmFakeNvData.ConsoleInCheck[0];
    QuestionIdBase     = CON_IN_DEVICE_QUESTION_ID;
    VariableOffsetBase = CON_IN_DEVICE_VAR_OFFSET;
    break;

  case FORM_CON_OUT_ID:
    ConsoleCheck       = &CallbackData->BmmFakeNvData.ConsoleOutCheck[0];
    QuestionIdBase     = CON_OUT_DEVICE_QUESTION_ID;
    VariableOffsetBase = CON_OUT_DEVICE_VAR_OFFSET;
    break;

  case FORM_CON_ERR_ID:
    ConsoleCheck       = &CallbackData->BmmFakeNvData.ConsoleErrCheck[0];
    QuestionIdBase     = CON_ERR_DEVICE_QUESTION_ID;
    VariableOffsetBase = CON_ERR_DEVICE_VAR_OFFSET;
    break;
  }
  ASSERT (ConsoleCheck != NULL);

  for (Index = 0; ((Index < ConsoleMenu->MenuNumber) && \
       (Index < MAX_MENU_NUMBER)) ; Index++) {
    CheckFlags = 0;
    NewMenuEntry = BOpt_GetMenuEntry (ConsoleMenu, Index);
    NewConsoleContext = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;
    if (NewConsoleContext->IsActive) {
      CheckFlags |= EFI_IFR_CHECKBOX_DEFAULT;
      ConsoleCheck[Index] = TRUE;
    } else {
      ConsoleCheck[Index] = FALSE;
    }
    HiiCreateCheckBoxOpCode (
      mStartOpCodeHandle,
      (EFI_QUESTION_ID) (QuestionIdBase + Index),
      VARSTORE_ID_BOOT_MAINT,
      (UINT16) (VariableOffsetBase + Index),
      NewMenuEntry->DisplayStringToken,
      NewMenuEntry->HelpStringToken,
      EFI_IFR_FLAG_CALLBACK,
      CheckFlags,
      NULL
      );
  }

  for (Index2 = 0; ((Index2 < TerminalMenu.MenuNumber) && \
       (Index2 < MAX_MENU_NUMBER)); Index2++) {
    CheckFlags          = 0;
    NewMenuEntry        = BOpt_GetMenuEntry (&TerminalMenu, Index2);
    NewTerminalContext  = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;

    ASSERT (Index < MAX_MENU_NUMBER);
    if (((NewTerminalContext->IsConIn != 0) && (UpdatePageId == FORM_CON_IN_ID)) ||
        ((NewTerminalContext->IsConOut != 0) && (UpdatePageId == FORM_CON_OUT_ID)) ||
        ((NewTerminalContext->IsStdErr != 0) && (UpdatePageId == FORM_CON_ERR_ID))
        ) {
      CheckFlags |= EFI_IFR_CHECKBOX_DEFAULT;
      ConsoleCheck[Index] = TRUE;
    } else {
      ConsoleCheck[Index] = FALSE;
    }
    HiiCreateCheckBoxOpCode (
      mStartOpCodeHandle,
      (EFI_QUESTION_ID) (QuestionIdBase + Index),
      VARSTORE_ID_BOOT_MAINT,
      (UINT16) (VariableOffsetBase + Index),
      NewMenuEntry->DisplayStringToken,
      NewMenuEntry->HelpStringToken,
      EFI_IFR_FLAG_CALLBACK,
      CheckFlags,
      NULL
      );

    Index++;
  }

  UpdatePageEnd (CallbackData);
}

/**
  Update the page's NV Map if user has changed the order
  a list. This list can be Boot Order or Driver Order.

  @param UpdatePageId    The form ID to be updated.
  @param OptionMenu      The new list.
  @param CallbackData    The BMM context data.

**/
VOID
UpdateOrderPage (
  IN UINT16                           UpdatePageId,
  IN BM_MENU_OPTION                   *OptionMenu,
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  BM_MENU_ENTRY     *NewMenuEntry;
  UINT16            Index;
  UINT16            OptionIndex;
  VOID              *OptionsOpCodeHandle;
  BOOLEAN           BootOptionFound;
  UINT32            *OptionOrder;
  EFI_QUESTION_ID   QuestionId;
  UINT16            VarOffset;

  CallbackData->BmmAskSaveOrNot = TRUE;
  UpdatePageStart (CallbackData);

  OptionOrder = NULL;
  QuestionId = 0;
  VarOffset = 0;
  switch (UpdatePageId) {

  case FORM_BOOT_CHG_ID:
    //
    // If the BootOptionOrder in the BmmFakeNvData are same with the date in the BmmOldFakeNVData,
    // means all Boot Options has been save in BootOptionMenu, we can get the date from the menu.
    // else means browser maintains some uncommitted date which are not saved in BootOptionMenu,
    // so we should not get the data from BootOptionMenu to show it.
    //
    if (CompareMem (CallbackData->BmmFakeNvData.BootOptionOrder, CallbackData->BmmOldFakeNVData.BootOptionOrder, sizeof (CallbackData->BmmFakeNvData.BootOptionOrder)) == 0) {
      GetBootOrder (CallbackData);
    }
    OptionOrder = CallbackData->BmmFakeNvData.BootOptionOrder;
    QuestionId = BOOT_OPTION_ORDER_QUESTION_ID;
    VarOffset = BOOT_OPTION_ORDER_VAR_OFFSET;
    break;

  case FORM_DRV_CHG_ID:
    //
    // If the DriverOptionOrder in the BmmFakeNvData are same with the date in the BmmOldFakeNVData,
    // means all Driver Options has been save in DriverOptionMenu, we can get the DriverOptionOrder from the menu.
    // else means browser maintains some uncommitted date which are not saved in DriverOptionMenu,
    // so we should not get the data from DriverOptionMenu to show it.
    //
    if (CompareMem (CallbackData->BmmFakeNvData.DriverOptionOrder, CallbackData->BmmOldFakeNVData.DriverOptionOrder, sizeof (CallbackData->BmmFakeNvData.DriverOptionOrder)) == 0) {
      GetDriverOrder (CallbackData);
    }
    OptionOrder = CallbackData->BmmFakeNvData.DriverOptionOrder;
    QuestionId = DRIVER_OPTION_ORDER_QUESTION_ID;
    VarOffset = DRIVER_OPTION_ORDER_VAR_OFFSET;
    break;
  }
  ASSERT (OptionOrder != NULL);

  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  NewMenuEntry = NULL;
  for (OptionIndex = 0; (OptionOrder[OptionIndex] != 0 && OptionIndex < MAX_MENU_NUMBER); OptionIndex++) {
    BootOptionFound = FALSE;
    for (Index = 0; Index < OptionMenu->MenuNumber; Index++) {
      NewMenuEntry   = BOpt_GetMenuEntry (OptionMenu, Index);
      if ((UINT32) (NewMenuEntry->OptionNumber + 1) == OptionOrder[OptionIndex]) {
        BootOptionFound = TRUE;
        break;
      }
    }
    if (BootOptionFound) {
      HiiCreateOneOfOptionOpCode (
        OptionsOpCodeHandle,
        NewMenuEntry->DisplayStringToken,
        0,
        EFI_IFR_TYPE_NUM_SIZE_32,
        OptionOrder[OptionIndex]
        );
    }
  }

  if (OptionMenu->MenuNumber > 0) {
    HiiCreateOrderedListOpCode (
      mStartOpCodeHandle,                          // Container for dynamic created opcodes
      QuestionId,                                  // Question ID
      VARSTORE_ID_BOOT_MAINT,                      // VarStore ID
      VarOffset,                                   // Offset in Buffer Storage
      STRING_TOKEN (STR_CHANGE_ORDER),             // Question prompt text
      STRING_TOKEN (STR_CHANGE_ORDER),             // Question help text
      0,                                           // Question flag
      0,                                           // Ordered list flag, e.g. EFI_IFR_UNIQUE_SET
      EFI_IFR_TYPE_NUM_SIZE_32,                    // Data type of Question value
      100,                                         // Maximum container
      OptionsOpCodeHandle,                         // Option Opcode list
      NULL                                         // Default Opcode is NULL
      );
  }

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);

  UpdatePageEnd (CallbackData);

}

/**
  Refresh the text mode page.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateConModePage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  UINTN                         Mode;
  UINTN                         Index;
  UINTN                         Col;
  UINTN                         Row;
  CHAR16                        ModeString[50];
  CHAR16                        *PStr;
  UINTN                         MaxMode;
  UINTN                         ValidMode;
  EFI_STRING_ID                 *ModeToken;
  EFI_STATUS                    Status;
  VOID                          *OptionsOpCodeHandle;
  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *ConOut;

  ConOut    = gST->ConOut;
  Index     = 0;
  ValidMode = 0;
  MaxMode   = (UINTN) (ConOut->Mode->MaxMode);

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  //
  // Check valid mode
  //
  for (Mode = 0; Mode < MaxMode; Mode++) {
    Status = ConOut->QueryMode (ConOut, Mode, &Col, &Row);
    if (EFI_ERROR(Status)) {
      continue;
    }
    ValidMode++;
  }

  if (ValidMode == 0) {
    return;
  }

  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  ModeToken           = AllocateZeroPool(sizeof (EFI_STRING_ID) * ValidMode);
  ASSERT(ModeToken != NULL);

  //
  // Determin which mode should be the first entry in menu
  //
  GetConsoleOutMode (CallbackData);

  //
  // Build text mode options
  //
  for (Mode = 0; Mode < MaxMode; Mode++) {
    Status = ConOut->QueryMode (ConOut, Mode, &Col, &Row);
    if (EFI_ERROR(Status)) {
      continue;
    }

    //
    // Build mode string Column x Row
    //
    UnicodeValueToStringS (ModeString, sizeof (ModeString), 0, Col, 0);
    PStr = &ModeString[0];
    StrnCatS (PStr, ARRAY_SIZE (ModeString), L" x ", StrLen(L" x ") + 1);
    PStr = PStr + StrLen (PStr);
    UnicodeValueToStringS (
      PStr,
      sizeof (ModeString) - ((UINTN)PStr - (UINTN)&ModeString[0]),
      0,
      Row,
      0
      );

    ModeToken[Index] = HiiSetString (CallbackData->BmmHiiHandle, 0, ModeString, NULL);

    if (Mode == CallbackData->BmmFakeNvData.ConsoleOutMode) {
      HiiCreateOneOfOptionOpCode (
        OptionsOpCodeHandle,
        ModeToken[Index],
        EFI_IFR_OPTION_DEFAULT,
        EFI_IFR_TYPE_NUM_SIZE_16,
        (UINT16) Mode
        );
    } else {
      HiiCreateOneOfOptionOpCode (
        OptionsOpCodeHandle,
        ModeToken[Index],
        0,
        EFI_IFR_TYPE_NUM_SIZE_16,
        (UINT16) Mode
        );
    }
    Index++;
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) CON_MODE_QUESTION_ID,
    VARSTORE_ID_BOOT_MAINT,
    CON_MODE_VAR_OFFSET,
    STRING_TOKEN (STR_CON_MODE_SETUP),
    STRING_TOKEN (STR_CON_MODE_SETUP),
    EFI_IFR_FLAG_RESET_REQUIRED,
    EFI_IFR_NUMERIC_SIZE_2,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  FreePool(ModeToken);

  UpdatePageEnd (CallbackData);
}

 /**
  Create the dynamic page which allows user to set the property such as Baud Rate, Data Bits,
  Parity, Stop Bits, Terminal Type.

  @param CallbackData    The BMM context data.

**/
VOID
UpdateTerminalPage (
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  UINT8               Index;
  UINT8               CheckFlags;
  BM_MENU_ENTRY       *NewMenuEntry;
  VOID                *OptionsOpCodeHandle;
  UINTN               CurrentTerminal;

  CallbackData->BmmAskSaveOrNot = TRUE;

  UpdatePageStart (CallbackData);

  CurrentTerminal = CallbackData->CurrentTerminal;
  NewMenuEntry = BOpt_GetMenuEntry (
                  &TerminalMenu,
                  CurrentTerminal
                  );

  if (NewMenuEntry == NULL) {
    return ;
  }

  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < sizeof (BaudRateList) / sizeof (BaudRateList [0]); Index++) {
    CheckFlags = 0;
    if (BaudRateList[Index].Value == 115200) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }
    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      BaudRateList[Index].StringToken,
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      Index
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_BAUD_RATE_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_BAUD_RATE_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_BAUD_RATE),
    STRING_TOKEN (STR_COM_BAUD_RATE),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < ARRAY_SIZE (DataBitsList); Index++) {
    CheckFlags = 0;

    if (DataBitsList[Index].Value == 8) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }

    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      DataBitsList[Index].StringToken,
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      Index
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_DATA_RATE_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_DATA_RATE_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_DATA_BITS),
    STRING_TOKEN (STR_COM_DATA_BITS),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < ARRAY_SIZE (ParityList); Index++) {
    CheckFlags = 0;
    if (ParityList[Index].Value ==  NoParity) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }

    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      ParityList[Index].StringToken,
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      Index
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_PARITY_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_PARITY_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_PARITY),
    STRING_TOKEN (STR_COM_PARITY),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < ARRAY_SIZE (StopBitsList); Index++) {
    CheckFlags = 0;
    if (StopBitsList[Index].Value == OneStopBit) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }

    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      StopBitsList[Index].StringToken,
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      Index
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_STOP_BITS_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_STOP_BITS_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_STOP_BITS),
    STRING_TOKEN (STR_COM_STOP_BITS),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < ARRAY_SIZE (TerminalType); Index++) {
    CheckFlags = 0;
    if (Index == 0) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }

    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      (EFI_STRING_ID) TerminalType[Index],
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      Index
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_TERMINAL_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_TERMINAL_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_TERMI_TYPE),
    STRING_TOKEN (STR_COM_TERMI_TYPE),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);
  OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
  ASSERT (OptionsOpCodeHandle != NULL);

  for (Index = 0; Index < ARRAY_SIZE (mFlowControlType); Index++) {
  CheckFlags = 0;
    if (Index == 0) {
      CheckFlags |= EFI_IFR_OPTION_DEFAULT;
    }
    HiiCreateOneOfOptionOpCode (
      OptionsOpCodeHandle,
      (EFI_STRING_ID) mFlowControlType[Index],
      CheckFlags,
      EFI_IFR_TYPE_NUM_SIZE_8,
      mFlowControlValue[Index]
      );
  }

  HiiCreateOneOfOpCode (
    mStartOpCodeHandle,
    (EFI_QUESTION_ID) (COM_FLOWCONTROL_QUESTION_ID + CurrentTerminal),
    VARSTORE_ID_BOOT_MAINT,
    (UINT16) (COM_FLOWCONTROL_VAR_OFFSET + CurrentTerminal),
    STRING_TOKEN (STR_COM_FLOW_CONTROL),
    STRING_TOKEN (STR_COM_FLOW_CONTROL),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionsOpCodeHandle,
    NULL
    );

  HiiFreeOpCodeHandle (OptionsOpCodeHandle);

  UpdatePageEnd (CallbackData);
}

/**
Update add boot/driver option page.

@param CallbackData    The BMM context data.
@param FormId             The form ID to be updated.
@param DevicePath       Device path.

**/
VOID
UpdateOptionPage(
  IN   BMM_CALLBACK_DATA        *CallbackData,
  IN   EFI_FORM_ID              FormId,
  IN   EFI_DEVICE_PATH_PROTOCOL *DevicePath
  )
{
  CHAR16                *String;
  EFI_STRING_ID         StringToken;

  String = NULL;

  if (DevicePath != NULL){
    String = ExtractFileNameFromDevicePath(DevicePath);
  }
  if (String == NULL) {
    String = HiiGetString (CallbackData->BmmHiiHandle, STRING_TOKEN (STR_NULL_STRING), NULL);
    ASSERT (String != NULL);
  }

  StringToken = HiiSetString (CallbackData->BmmHiiHandle, 0, String, NULL);
  FreePool(String);

  if(FormId == FORM_BOOT_ADD_ID){
    if (!CallbackData->BmmFakeNvData.BootOptionChanged) {
      ZeroMem (CallbackData->BmmFakeNvData.BootOptionalData, sizeof (CallbackData->BmmFakeNvData.BootOptionalData));
      ZeroMem (CallbackData->BmmFakeNvData.BootDescriptionData, sizeof (CallbackData->BmmFakeNvData.BootDescriptionData));
      ZeroMem (CallbackData->BmmOldFakeNVData.BootOptionalData, sizeof (CallbackData->BmmOldFakeNVData.BootOptionalData));
      ZeroMem (CallbackData->BmmOldFakeNVData.BootDescriptionData, sizeof (CallbackData->BmmOldFakeNVData.BootDescriptionData));
    }
  } else if (FormId == FORM_DRV_ADD_FILE_ID){
    if (!CallbackData->BmmFakeNvData.DriverOptionChanged) {
      ZeroMem (CallbackData->BmmFakeNvData.DriverOptionalData, sizeof (CallbackData->BmmFakeNvData.DriverOptionalData));
      ZeroMem (CallbackData->BmmFakeNvData.DriverDescriptionData, sizeof (CallbackData->BmmFakeNvData.DriverDescriptionData));
      ZeroMem (CallbackData->BmmOldFakeNVData.DriverOptionalData, sizeof (CallbackData->BmmOldFakeNVData.DriverOptionalData));
      ZeroMem (CallbackData->BmmOldFakeNVData.DriverDescriptionData, sizeof (CallbackData->BmmOldFakeNVData.DriverDescriptionData));
    }
  }

  RefreshUpdateData();
  mStartLabel->Number = FormId;

  HiiCreateSubTitleOpCode (
    mStartOpCodeHandle,
    StringToken,
    0,
    0,
    0
    );

  HiiUpdateForm (
    CallbackData->BmmHiiHandle,
    &mBootMaintGuid,
    FormId,
    mStartOpCodeHandle,// Label FormId
    mEndOpCodeHandle   // LABEL_END
    );
}

/**
  Dispatch the correct update page function to call based on
  the UpdatePageId.

  @param UpdatePageId    The form ID.
  @param CallbackData    The BMM context data.

**/
VOID
UpdatePageBody (
  IN UINT16                           UpdatePageId,
  IN BMM_CALLBACK_DATA                *CallbackData
  )
{
  CleanUpPage (UpdatePageId, CallbackData);
  switch (UpdatePageId) {
  case FORM_CON_IN_ID:
    UpdateConsolePage (UpdatePageId, &ConsoleInpMenu, CallbackData);
    break;

  case FORM_CON_OUT_ID:
    UpdateConsolePage (UpdatePageId, &ConsoleOutMenu, CallbackData);
    break;

  case FORM_CON_ERR_ID:
    UpdateConsolePage (UpdatePageId, &ConsoleErrMenu, CallbackData);
    break;

  case FORM_BOOT_CHG_ID:
    UpdateOrderPage (UpdatePageId, &BootOptionMenu, CallbackData);
    break;

  case FORM_DRV_CHG_ID:
    UpdateOrderPage (UpdatePageId, &DriverOptionMenu, CallbackData);
    break;

  default:
    break;
  }
}

/**
  Dispatch the display to the next page based on NewPageId.

  @param Private         The BMM context data.
  @param NewPageId       The original page ID.

**/
VOID
UpdatePageId (
  BMM_CALLBACK_DATA              *Private,
  UINT16                         NewPageId
  )
{
  if ((NewPageId < FILE_OPTION_OFFSET) && (NewPageId >= HANDLE_OPTION_OFFSET)) {
    //
    // If we select a handle to add driver option, advance to the add handle description page.
    //
    NewPageId = FORM_DRV_ADD_HANDLE_DESC_ID;
  } else if ((NewPageId == KEY_VALUE_SAVE_AND_EXIT) || (NewPageId == KEY_VALUE_NO_SAVE_AND_EXIT)) {
    //
    // Return to main page after "Save Changes" or "Discard Changes".
    //
    NewPageId = FORM_MAIN_ID;
  } else if ((NewPageId >= TERMINAL_OPTION_OFFSET) && (NewPageId < CONSOLE_OPTION_OFFSET)) {
    NewPageId = FORM_CON_COM_SETUP_ID;
  }

  if ((NewPageId > 0) && (NewPageId < MAXIMUM_FORM_ID)) {
    Private->BmmPreviousPageId  = Private->BmmCurrentPageId;
    Private->BmmCurrentPageId   = NewPageId;
  }
}