/** @file
  FrontPage routines to handle the callbacks and browser calls

Copyright (c) 2004 - 2008, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include "Bds.h"
#include "FrontPage.h"

EFI_GUID  mFrontPageGuid      = FRONT_PAGE_FORMSET_GUID;

BOOLEAN   gConnectAllHappened = FALSE;
UINTN     gCallbackKey;

EFI_HII_DATABASE_PROTOCOL       *gHiiDatabase;
EFI_HII_STRING_PROTOCOL         *gHiiString;
EFI_FORM_BROWSER2_PROTOCOL      *gFormBrowser2;
EFI_HII_CONFIG_ROUTING_PROTOCOL *gHiiConfigRouting;

FRONT_PAGE_CALLBACK_DATA  gFrontPagePrivate = {
  FRONT_PAGE_CALLBACK_DATA_SIGNATURE,
  NULL,
  NULL,
  NULL,
  {
    FakeExtractConfig,
    FakeRouteConfig,
    FrontPageCallback
  }
};

EFI_STATUS
EFIAPI
FakeExtractConfig (
  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
  IN  CONST EFI_STRING                       Request,
  OUT EFI_STRING                             *Progress,
  OUT EFI_STRING                             *Results
  )
/*++

  Routine Description:
    This function allows a caller to extract the current configuration for one
    or more named elements from the target driver.

  Arguments:
    This       - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
    Request    - A null-terminated Unicode string in <ConfigRequest> format.
    Progress   - On return, points to a character in the Request string.
                 Points to the string's null terminator if request was successful.
                 Points to the most recent '&' before the first failing name/value
                 pair (or the beginning of the string if the failure is in the
                 first name/value pair) if the request was not successful.
    Results    - A null-terminated Unicode string in <ConfigAltResp> format which
                 has all values filled in for the names in the Request string.
                 String to be allocated by the called function.

  Returns:
    EFI_SUCCESS           - The Results is filled with the requested values.
    EFI_OUT_OF_RESOURCES  - Not enough memory to store the results.
    EFI_INVALID_PARAMETER - Request is NULL, illegal syntax, or unknown name.
    EFI_NOT_FOUND         - Routing data doesn't match any storage in this driver.

--*/
{
  return EFI_NOT_FOUND;
}

EFI_STATUS
EFIAPI
FakeRouteConfig (
  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
  IN  CONST EFI_STRING                       Configuration,
  OUT EFI_STRING                             *Progress
  )
/*++

  Routine Description:
    This function processes the results of changes in configuration.

  Arguments:
    This          - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
    Configuration - A null-terminated Unicode string in <ConfigResp> format.
    Progress      - A pointer to a string filled in with the offset of the most
                    recent '&' before the first failing name/value pair (or the
                    beginning of the string if the failure is in the first
                    name/value pair) or the terminating NULL if all was successful.

  Returns:
    EFI_SUCCESS           - The Results is processed successfully.
    EFI_INVALID_PARAMETER - Configuration is NULL.
    EFI_NOT_FOUND         - Routing data doesn't match any storage in this driver.

--*/
{
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
FrontPageCallback (
  IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
  IN  EFI_BROWSER_ACTION                     Action,
  IN  EFI_QUESTION_ID                        QuestionId,
  IN  UINT8                                  Type,
  IN  EFI_IFR_TYPE_VALUE                     *Value,
  OUT EFI_BROWSER_ACTION_REQUEST             *ActionRequest
  )
/*++

  Routine Description:
    This function processes the results of changes in configuration.

  Arguments:
    This          - Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
    Action        - Specifies the type of action taken by the browser.
    QuestionId    - A unique value which is sent to the original exporting driver
                    so that it can identify the type of data to expect.
    Type          - The type of value for the question.
    Value         - A pointer to the data being sent to the original exporting driver.
    ActionRequest - On return, points to the action requested by the callback function.

  Returns:
    EFI_SUCCESS          - The callback successfully handled the action.
    EFI_OUT_OF_RESOURCES - Not enough storage is available to hold the variable and its data.
    EFI_DEVICE_ERROR     - The variable could not be saved.
    EFI_UNSUPPORTED      - The specified Action is not supported by the callback.

--*/
{
  CHAR8                         *LanguageString;
  CHAR8                         *LangCode;
  CHAR8                         Lang[RFC_3066_ENTRY_SIZE];
#ifdef LANG_SUPPORT
  CHAR8                         OldLang[ISO_639_2_ENTRY_SIZE];
#endif
  UINTN                         Index;
  EFI_STATUS                    Status;

  if ((Value == NULL) || (ActionRequest == NULL)) {
    return EFI_INVALID_PARAMETER;
  }

  gCallbackKey = QuestionId;

  //
  // The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can
  // describe to their customers in documentation how to find their setup information (namely
  // under the device manager and specific buckets)
  //
  switch (QuestionId) {
  case FRONT_PAGE_KEY_CONTINUE:
    //
    // This is the continue - clear the screen and return an error to get out of FrontPage loop
    //
    break;

  case FRONT_PAGE_KEY_LANGUAGE:
    //
    // Collect the languages from what our current Language support is based on our VFR
    //
    LanguageString = HiiLibGetSupportedLanguages (gFrontPagePrivate.HiiHandle);
    ASSERT (LanguageString != NULL);

    Index = 0;
    LangCode = LanguageString;
    while (*LangCode != 0) {
      HiiLibGetNextLanguage (&LangCode, Lang);

      if (Index == Value->u8) {
        break;
      }

      Index++;
    }

    Status = gRT->SetVariable (
                    L"PlatformLang",
                    &gEfiGlobalVariableGuid,
                    EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
                    AsciiStrSize (Lang),
                    Lang
                    );

#ifdef LANG_SUPPORT
    //
    // Set UEFI deprecated variable "Lang" for backwards compatibility
    //
    Status = ConvertRfc3066LanguageToIso639Language (Lang, OldLang);
    if (!EFI_ERROR (Status)) {
      Status = gRT->SetVariable (
                      L"Lang",
                      &gEfiGlobalVariableGuid,
                      EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
                      ISO_639_2_ENTRY_SIZE,
                      OldLang
                      );
    }
#endif

    FreePool (LanguageString);
    break;

  case FRONT_PAGE_KEY_BOOT_MANAGER:
    //
    // Boot Manager
    //
    break;

  case FRONT_PAGE_KEY_DEVICE_MANAGER:
    //
    // Device Manager
    //
    break;

  case FRONT_PAGE_KEY_BOOT_MAINTAIN:
    //
    // Boot Maintenance Manager
    //
    break;

  default:
    gCallbackKey = 0;
    break;
  }

  *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;

  return EFI_SUCCESS;
}

EFI_STATUS
InitializeFrontPage (
  BOOLEAN                         ReInitializeStrings
  )
/*++

Routine Description:
  Initialize HII information for the FrontPage

Arguments:
  None

Returns:
  EFI_SUCCESS       - The operation is successful.
  EFI_DEVICE_ERROR  - If the dynamic opcode creation failed.

--*/
{
  EFI_STATUS                  Status;
  EFI_HII_PACKAGE_LIST_HEADER *PackageList;
  EFI_HII_UPDATE_DATA         UpdateData;
  IFR_OPTION                  *OptionList;
  CHAR8                       *LanguageString;
  CHAR8                       *LangCode;
  CHAR8                       Lang[RFC_3066_ENTRY_SIZE];
  CHAR8                       CurrentLang[RFC_3066_ENTRY_SIZE];
  UINTN                       OptionCount;
  EFI_STRING_ID               Token;
  CHAR16                      *StringBuffer;
  UINTN                       BufferSize;
  UINTN                       Index;
  EFI_HII_HANDLE              HiiHandle;

  if (!ReInitializeStrings) {
    //
    // Initialize the Device Manager
    //
    InitializeDeviceManager ();

    //
    // Initialize the Device Manager
    //
    InitializeBootManager ();

    gCallbackKey  = 0;

    //
    // Locate Hii relative protocols
    //
    Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &gHiiDatabase);
    if (EFI_ERROR (Status)) {
      return Status;
    }

    Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &gHiiString);
    if (EFI_ERROR (Status)) {
      return Status;
    }

    Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &gFormBrowser2);
    if (EFI_ERROR (Status)) {
      return Status;
    }

    Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &gHiiConfigRouting);
    if (EFI_ERROR (Status)) {
      return Status;
    }

    //
    // Create driver handle used by HII database
    //
    Status = HiiLibCreateHiiDriverHandle (&gFrontPagePrivate.DriverHandle);
    if (EFI_ERROR (Status)) {
      return Status;
    }

    //
    // Install Config Access protocol to driver handle
    //
    Status = gBS->InstallProtocolInterface (
                    &gFrontPagePrivate.DriverHandle,
                    &gEfiHiiConfigAccessProtocolGuid,
                    EFI_NATIVE_INTERFACE,
                    &gFrontPagePrivate.ConfigAccess
                    );
    ASSERT_EFI_ERROR (Status);

    //
    // Publish our HII data
    //
    PackageList = HiiLibPreparePackageList (2, &mFrontPageGuid, FrontPageVfrBin, BdsDxeStrings);
    ASSERT (PackageList != NULL);

    Status = gHiiDatabase->NewPackageList (
                             gHiiDatabase,
                             PackageList,
                             gFrontPagePrivate.DriverHandle,
                             &gFrontPagePrivate.HiiHandle
                             );
    FreePool (PackageList);
    if (EFI_ERROR (Status)) {
      return Status;
    }
  }

  //
  // Get current language setting
  //
  HiiLibGetCurrentLanguage (CurrentLang);

  //
  // Allocate space for creation of UpdateData Buffer
  //
  UpdateData.BufferSize = 0x1000;
  UpdateData.Data = AllocateZeroPool (0x1000);
  ASSERT (UpdateData.Data != NULL);

  OptionList = AllocateZeroPool (0x1000);
  ASSERT (OptionList != NULL);

  //
  // Collect the languages from what our current Language support is based on our VFR
  //
  HiiHandle = gFrontPagePrivate.HiiHandle;
  LanguageString = HiiLibGetSupportedLanguages (HiiHandle);
  ASSERT (LanguageString != NULL);

  OptionCount = 0;
  LangCode = LanguageString;
  while (*LangCode != 0) {
    HiiLibGetNextLanguage (&LangCode, Lang);

    if (gFrontPagePrivate.LanguageToken == NULL) {
      //
      // Get Language Name from String Package. The StringId of Printable Language
      // Name is always 1 which is generated by StringGather Tool.
      //
      BufferSize = 0x100;
      StringBuffer = AllocatePool (BufferSize);
      Status = gHiiString->GetString (
                           gHiiString,
                           Lang,
                           HiiHandle,
                           PRINTABLE_LANGUAGE_NAME_STRING_ID,
                           StringBuffer,
                           &BufferSize,
                           NULL
                           );
      if (Status == EFI_BUFFER_TOO_SMALL) {
        FreePool (StringBuffer);
        StringBuffer = AllocatePool (BufferSize);
        Status = gHiiString->GetString (
                             gHiiString,
                             Lang,
                             HiiHandle,
                             PRINTABLE_LANGUAGE_NAME_STRING_ID,
                             StringBuffer,
                             &BufferSize,
                             NULL
                             );
      }
      ASSERT_EFI_ERROR (Status);

      Token = 0;
      Status = HiiLibNewString (HiiHandle, &Token, StringBuffer);
      FreePool (StringBuffer);
    } else {
      Token = gFrontPagePrivate.LanguageToken[OptionCount];
    }

    if (AsciiStrCmp (Lang, CurrentLang) == 0) {
      OptionList[OptionCount].Flags = EFI_IFR_OPTION_DEFAULT;
    } else {
      OptionList[OptionCount].Flags = 0;
    }
    OptionList[OptionCount].StringToken = Token;
    OptionList[OptionCount].Value.u8 = (UINT8) OptionCount;

    OptionCount++;
  }

  FreePool (LanguageString);

  UpdateData.Offset = 0;
  CreateOneOfOpCode (
    FRONT_PAGE_KEY_LANGUAGE,
    0,
    0,
    STRING_TOKEN (STR_LANGUAGE_SELECT),
    STRING_TOKEN (STR_LANGUAGE_SELECT_HELP),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    OptionList,
    OptionCount,
    &UpdateData
    );

  Status = IfrLibUpdateForm (
             HiiHandle,
             &mFrontPageGuid,
             FRONT_PAGE_FORM_ID,
             LABEL_SELECT_LANGUAGE,
             FALSE,
             &UpdateData
             );

  //
  // Save the string Id for each language
  //
  gFrontPagePrivate.LanguageToken = AllocatePool (OptionCount * sizeof (EFI_STRING_ID));
  ASSERT (gFrontPagePrivate.LanguageToken != NULL);
  for (Index = 0; Index < OptionCount; Index++) {
    gFrontPagePrivate.LanguageToken[Index] = OptionList[Index].StringToken;
  }

  FreePool (UpdateData.Data);
  FreePool (OptionList);
  return Status;
}

EFI_STATUS
CallFrontPage (
  VOID
  )
/*++

Routine Description:
  Call the browser and display the front page

Arguments:
  None

Returns:

--*/
{
  EFI_STATUS                  Status;
  EFI_BROWSER_ACTION_REQUEST  ActionRequest;

  //
  // Begin waiting for USER INPUT
  //
  REPORT_STATUS_CODE (
    EFI_PROGRESS_CODE,
    (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_PC_INPUT_WAIT)
    );


  //
  // Drop the TPL level from TPL_APPLICATION to TPL_APPLICATION
  //
  gBS->RestoreTPL (TPL_APPLICATION);

  ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
  Status = gFormBrowser2->SendForm (
                            gFormBrowser2,
                            &gFrontPagePrivate.HiiHandle,
                            1,
                            NULL,
                            0,
                            NULL,
                            &ActionRequest
                            );
  //
  // Check whether user  change any option setting which needs a reset to be effective
  //
  if (ActionRequest == EFI_BROWSER_ACTION_REQUEST_RESET) {
    EnableResetRequired ();
  }

  gBS->RaiseTPL (TPL_APPLICATION);
  return Status;
}

EFI_STATUS
GetProducerString (
  IN      EFI_GUID                  *ProducerGuid,
  IN      EFI_STRING_ID             Token,
  OUT     CHAR16                    **String
  )
/*++

Routine Description:
  Acquire the string associated with the ProducerGuid and return it.

Arguments:
  ProducerGuid - The Guid to search the HII database for
  Token - The token value of the string to extract
  String - The string that is extracted

Returns:
  EFI_SUCCESS - The function returns EFI_SUCCESS always.

--*/
{
  EFI_STATUS      Status;

  Status = HiiLibGetStringFromToken (ProducerGuid, Token, String);
  if (EFI_ERROR (Status)) {
    *String = GetStringById (STRING_TOKEN (STR_MISSING_STRING));
  }

  return EFI_SUCCESS;
}

VOID
ConvertProcessorToString (
  IN  EFI_PROCESSOR_CORE_FREQUENCY_DATA *ProcessorFrequency,
  OUT CHAR16                            **String
  )
/*++

Routine Description:
  Convert Processor Frequency Data to a string

Arguments:
  ProcessorFrequency - The frequency data to process
  String - The string that is created

Returns:

--*/
{
  CHAR16  *StringBuffer;
  UINTN   Index;
  UINT32  FreqMhz;

  if (ProcessorFrequency->Exponent >= 6) {
    FreqMhz = ProcessorFrequency->Value;
    for (Index = 0; Index < (UINTN) (ProcessorFrequency->Exponent - 6); Index++) {
      FreqMhz *= 10;
    }
  } else {
    FreqMhz = 0;
  }

  StringBuffer = AllocateZeroPool (0x20);
  ASSERT (StringBuffer != NULL);
  Index = UnicodeValueToString (StringBuffer, LEFT_JUSTIFY, FreqMhz / 1000, 3);
  StrCat (StringBuffer, L".");
  UnicodeValueToString (StringBuffer + Index + 1, PREFIX_ZERO, (FreqMhz % 1000) / 10, 2);
  StrCat (StringBuffer, L" GHz");

  *String = (CHAR16 *) StringBuffer;

  return ;
}

VOID
ConvertMemorySizeToString (
  IN  UINT32          MemorySize,
  OUT CHAR16          **String
  )
/*++

Routine Description:
  Convert Memory Size to a string

Arguments:
  MemorySize - The size of the memory to process
  String - The string that is created

Returns:

--*/
{
  CHAR16  *StringBuffer;

  StringBuffer = AllocateZeroPool (0x20);
  ASSERT (StringBuffer != NULL);
  UnicodeValueToString (StringBuffer, LEFT_JUSTIFY, MemorySize, 6);
  StrCat (StringBuffer, L" MB RAM");

  *String = (CHAR16 *) StringBuffer;

  return ;
}

VOID
UpdateFrontPageStrings (
  VOID
  )
/*++

Routine Description:
  Update the banner information for the Front Page based on DataHub information

Arguments:
  None

Returns:

--*/
{
  EFI_STATUS                        Status;
  EFI_STRING_ID                     TokenToUpdate;
  CHAR16                            *NewString;
  UINT64                            MonotonicCount;
  EFI_DATA_HUB_PROTOCOL             *DataHub;
  EFI_DATA_RECORD_HEADER            *Record;
  EFI_SUBCLASS_TYPE1_HEADER         *DataHeader;
  EFI_MISC_BIOS_VENDOR_DATA         *BiosVendor;
  EFI_MISC_SYSTEM_MANUFACTURER_DATA *SystemManufacturer;
  EFI_PROCESSOR_VERSION_DATA        *ProcessorVersion;
  EFI_PROCESSOR_CORE_FREQUENCY_DATA *ProcessorFrequency;
  EFI_MEMORY_ARRAY_START_ADDRESS_DATA    *MemoryArray;
  BOOLEAN                           Find[5];

  ZeroMem (Find, sizeof (Find));

  //
  // Update Front Page strings
  //
  Status = gBS->LocateProtocol (
                  &gEfiDataHubProtocolGuid,
                  NULL,
                  (VOID **) &DataHub
                  );
  ASSERT_EFI_ERROR (Status);

  MonotonicCount  = 0;
  Record          = NULL;
  do {
    Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);
    if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {
      DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);
      if (CompareGuid (&Record->DataRecordGuid, &gEfiMiscSubClassGuid) &&
          (DataHeader->RecordType == EFI_MISC_BIOS_VENDOR_RECORD_NUMBER)
          ) {
        BiosVendor = (EFI_MISC_BIOS_VENDOR_DATA *) (DataHeader + 1);
        GetProducerString (&Record->ProducerName, BiosVendor->BiosVersion, &NewString);
        TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION);
        HiiLibSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString);
        FreePool (NewString);
        Find[0] = TRUE;
      }

      if (CompareGuid (&Record->DataRecordGuid, &gEfiMiscSubClassGuid) &&
          (DataHeader->RecordType == EFI_MISC_SYSTEM_MANUFACTURER_RECORD_NUMBER)
          ) {
        SystemManufacturer = (EFI_MISC_SYSTEM_MANUFACTURER_DATA *) (DataHeader + 1);
        GetProducerString (&Record->ProducerName, SystemManufacturer->SystemProductName, &NewString);
        TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL);
        HiiLibSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString);
        FreePool (NewString);
        Find[1] = TRUE;
      }

      if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&
          (DataHeader->RecordType == ProcessorVersionRecordType)
          ) {
        ProcessorVersion = (EFI_PROCESSOR_VERSION_DATA *) (DataHeader + 1);
        GetProducerString (&Record->ProducerName, *ProcessorVersion, &NewString);
        TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_CPU_MODEL);
        HiiLibSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString);
        FreePool (NewString);
        Find[2] = TRUE;
      }

      if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&
          (DataHeader->RecordType == ProcessorCoreFrequencyRecordType)
          ) {
        ProcessorFrequency = (EFI_PROCESSOR_CORE_FREQUENCY_DATA *) (DataHeader + 1);
        ConvertProcessorToString (ProcessorFrequency, &NewString);
        TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_CPU_SPEED);
        HiiLibSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString);
        FreePool (NewString);
        Find[3] = TRUE;
      }

      if (CompareGuid (&Record->DataRecordGuid, &gEfiMemorySubClassGuid) &&
          (DataHeader->RecordType == EFI_MEMORY_ARRAY_START_ADDRESS_RECORD_NUMBER)
          ) {
        MemoryArray = (EFI_MEMORY_ARRAY_START_ADDRESS_DATA *) (DataHeader + 1);
        ConvertMemorySizeToString (
          (UINT32)(RShiftU64((MemoryArray->MemoryArrayEndAddress - MemoryArray->MemoryArrayStartAddress + 1), 20)),
          &NewString
          );
        TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_MEMORY_SIZE);
        HiiLibSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString);
        FreePool (NewString);
        Find[4] = TRUE;
      }
    }
  } while (!EFI_ERROR (Status) && (MonotonicCount != 0) && !(Find[0] && Find[1] && Find[2] && Find[3] && Find[4]));

  return ;
}

EFI_STATUS
WaitForSingleEvent (
  IN EFI_EVENT                  Event,
  IN UINT64                     Timeout OPTIONAL
  )
/*++

Routine Description:
  Function waits for a given event to fire, or for an optional timeout to expire.

Arguments:
  Event            - The event to wait for
  Timeout          - An optional timeout value in 100 ns units.

Returns:
  EFI_SUCCESS      - Event fired before Timeout expired.
  EFI_TIME_OUT     - Timout expired before Event fired..

--*/
{
  EFI_STATUS  Status;
  UINTN       Index;
  EFI_EVENT   TimerEvent;
  EFI_EVENT   WaitList[2];

  if (Timeout) {
    //
    // Create a timer event
    //
    Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
    if (!EFI_ERROR (Status)) {
      //
      // Set the timer event
      //
      gBS->SetTimer (
            TimerEvent,
            TimerRelative,
            Timeout
            );

      //
      // Wait for the original event or the timer
      //
      WaitList[0] = Event;
      WaitList[1] = TimerEvent;
      Status      = gBS->WaitForEvent (2, WaitList, &Index);
      gBS->CloseEvent (TimerEvent);

      //
      // If the timer expired, change the return to timed out
      //
      if (!EFI_ERROR (Status) && Index == 1) {
        Status = EFI_TIMEOUT;
      }
    }
  } else {
    //
    // No timeout... just wait on the event
    //
    Status = gBS->WaitForEvent (1, &Event, &Index);
    ASSERT (!EFI_ERROR (Status));
    ASSERT (Index == 0);
  }

  return Status;
}

EFI_STATUS
ShowProgress (
  IN UINT16                       TimeoutDefault
  )
/*++

Routine Description:
  Function show progress bar to wait for user input.

Arguments:
  TimeoutDefault   - The fault time out value before the system
                     continue to boot.

Returns:
  EFI_SUCCESS      - User pressed some key except "Enter"
  EFI_TIME_OUT     - Timout expired or user press "Enter"

--*/
{
  EFI_STATUS                    Status;
  CHAR16                        *TmpStr;
  EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
  EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
  EFI_GRAPHICS_OUTPUT_BLT_PIXEL Color;
  EFI_INPUT_KEY                 Key;
  UINT16                        TimeoutRemain;

  if (TimeoutDefault == 0) {
    return EFI_TIMEOUT;
  }

  DEBUG ((EFI_D_INFO, "\n\nStart showing progress bar... Press any key to stop it! ...Zzz....\n"));
  
  SetMem (&Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0xff);
  SetMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0x0);
  SetMem (&Color, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0xff);

  //
  // Clear the progress status bar first
  //
  TmpStr = GetStringById (STRING_TOKEN (STR_START_BOOT_OPTION));
  if (TmpStr != NULL) {
    PlatformBdsShowProgress (Foreground, Background, TmpStr, Color, 0, 0);
  }

  TimeoutRemain = TimeoutDefault;
  while (TimeoutRemain != 0) {
    DEBUG ((EFI_D_INFO, "Showing progress bar...Remaining %d second!\n", TimeoutRemain));
    
    Status = WaitForSingleEvent (gST->ConIn->WaitForKey, ONE_SECOND);
    if (Status != EFI_TIMEOUT) {
      break;
    }
    TimeoutRemain--;

    //
    // Show progress
    //
    if (TmpStr != NULL) {
      PlatformBdsShowProgress (
        Foreground,
        Background,
        TmpStr,
        Color,
        ((TimeoutDefault - TimeoutRemain) * 100 / TimeoutDefault),
        0
        );
    }
  }
  gBS->FreePool (TmpStr);

  //
  // Timeout expired
  //
  if (TimeoutRemain == 0) {
    return EFI_TIMEOUT;
  }

  //
  // User pressed some key
  //
  Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {
    //
    // User pressed enter, equivalent to select "continue"
    //
    return EFI_TIMEOUT;
  }

  return EFI_SUCCESS;
}

VOID
PlatformBdsEnterFrontPage (
  IN UINT16                       TimeoutDefault,
  IN BOOLEAN                      ConnectAllHappened
  )
/*++

Routine Description:
  This function is the main entry of the platform setup entry.
  The function will present the main menu of the system setup,
  this is the platform reference part and can be customize.

Arguments:
  TimeoutDefault     - The fault time out value before the system
                       continue to boot.
  ConnectAllHappened - The indicater to check if the connect all have
                       already happended.

Returns:
  None

--*/
{
  EFI_STATUS                    Status;
  EFI_CONSOLE_CONTROL_PROTOCOL  *ConsoleControl;

  PERF_START (0, "BdsTimeOut", "BDS", 0);
  //
  // Indicate if we need connect all in the platform setup
  //
  if (ConnectAllHappened) {
    gConnectAllHappened = TRUE;
  }

  if (TimeoutDefault != 0xffff) {
    gBS->RestoreTPL (TPL_APPLICATION);
    Status = ShowProgress (TimeoutDefault);
    gBS->RaiseTPL (TPL_APPLICATION);

    if (EFI_ERROR (Status)) {
      //
      // Timeout or user press enter to continue
      //
      goto Exit;
    }
  }

  do {

    InitializeFrontPage (TRUE);

    //
    // Update Front Page strings
    //
    UpdateFrontPageStrings ();

    gCallbackKey = 0;
    Status = CallFrontPage ();

    //
    // If gCallbackKey is greater than 1 and less or equal to 5,
    // it will lauch configuration utilities.
    // 2 = set language
    // 3 = boot manager
    // 4 = device manager
    // 5 = boot maintainenance manager
    //
    if (gCallbackKey != 0) {
      REPORT_STATUS_CODE (
        EFI_PROGRESS_CODE,
        (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_PC_USER_SETUP)
        );
    }
    //
    // Based on the key that was set, we can determine what to do
    //
    switch (gCallbackKey) {
    //
    // The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can
    // describe to their customers in documentation how to find their setup information (namely
    // under the device manager and specific buckets)
    //
    // These entries consist of the Continue, Select language, Boot Manager, and Device Manager
    //
    case FRONT_PAGE_KEY_CONTINUE:
      //
      // User hit continue
      //
      break;

    case FRONT_PAGE_KEY_LANGUAGE:
      //
      // User made a language setting change - display front page again
      //
      break;

    case FRONT_PAGE_KEY_BOOT_MANAGER:
      //
      // User chose to run the Boot Manager
      //
      CallBootManager ();
      break;

    case FRONT_PAGE_KEY_DEVICE_MANAGER:
      //
      // Display the Device Manager
      //
      do {
        CallDeviceManager();
      } while (gCallbackKey == FRONT_PAGE_KEY_DEVICE_MANAGER);
      break;

    case FRONT_PAGE_KEY_BOOT_MAINTAIN:
      //
      // Display the Boot Maintenance Manager
      //
      BdsStartBootMaint ();
      break;
    }

  } while ((Status == EFI_SUCCESS) && (gCallbackKey != FRONT_PAGE_KEY_CONTINUE));

  //
  //Will leave browser, check any reset required change is applied? if yes, reset system
  //
  gBS->RestoreTPL (TPL_APPLICATION);
  SetupResetReminder ();
  gBS->RaiseTPL (TPL_APPLICATION);

Exit:
  //
  // Automatically load current entry
  // Note: The following lines of code only execute when Auto boot
  // takes affect
  //
  PERF_END (0, "BdsTimeOut", "BDS", 0);
  Status = gBS->LocateProtocol (&gEfiConsoleControlProtocolGuid, NULL, (VOID **) &ConsoleControl);
  ConsoleControl->SetMode (ConsoleControl, EfiConsoleControlScreenText);

}