/** @file
  The platform boot manager reference implement

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 "BootManager.h"

UINT16             mKeyInput;
EFI_GUID           mBootManagerGuid = BOOT_MANAGER_FORMSET_GUID;
LIST_ENTRY         *mBootOptionsList;
BDS_COMMON_OPTION  *gOption;

BOOT_MANAGER_CALLBACK_DATA  gBootManagerPrivate = {
  BOOT_MANAGER_CALLBACK_DATA_SIGNATURE,
  NULL,
  NULL,
  {
    FakeExtractConfig,
    FakeRouteConfig,
    BootManagerCallback
  }
};

EFI_STATUS
EFIAPI
BootManagerCallback (
  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.

--*/
{
  BDS_COMMON_OPTION       *Option;
  LIST_ENTRY              *Link;
  UINT16                  KeyCount;

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

  //
  // Initialize the key count
  //
  KeyCount = 0;

  for (Link = mBootOptionsList->ForwardLink; Link != mBootOptionsList; Link = Link->ForwardLink) {
    Option = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);

    KeyCount++;

    gOption = Option;

    //
    // Is this device the one chosen?
    //
    if (KeyCount == QuestionId) {
      //
      // Assigning the returned Key to a global allows the original routine to know what was chosen
      //
      mKeyInput = QuestionId;

      //
      // Request to exit SendForm(), so that we could boot the selected option
      //
      *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
      break;
    }
  }

  return EFI_SUCCESS;
}

EFI_STATUS
InitializeBootManager (
  VOID
  )
/*++

Routine Description:

  Initialize HII information for the FrontPage

Arguments:
  None

Returns:

--*/
{
  EFI_STATUS                  Status;
  EFI_HII_PACKAGE_LIST_HEADER *PackageList;

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

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

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

  Status = gHiiDatabase->NewPackageList (
                           gHiiDatabase,
                           PackageList,
                           gBootManagerPrivate.DriverHandle,
                           &gBootManagerPrivate.HiiHandle
                           );
  FreePool (PackageList);

  return Status;
}

VOID
CallBootManager (
  VOID
  )
/*++

Routine Description:
  Hook to enable UI timeout override behavior.

Arguments:
  BdsDeviceList - Device List that BDS needs to connect.

  Entry - Pointer to current Boot Entry.

Returns:
  NONE

--*/
{
  EFI_STATUS                  Status;
  BDS_COMMON_OPTION           *Option;
  LIST_ENTRY                  *Link;
  EFI_HII_UPDATE_DATA         UpdateData;
  CHAR16                      *ExitData;
  UINTN                       ExitDataSize;
  EFI_STRING_ID               Token;
  EFI_INPUT_KEY               Key;
  LIST_ENTRY                  BdsBootOptionList;
  CHAR16                      *HelpString;
  EFI_STRING_ID               HelpToken;
  UINT16                      *TempStr;
  EFI_HII_HANDLE              HiiHandle;
  EFI_BROWSER_ACTION_REQUEST  ActionRequest;
  UINTN                       TempSize;

  gOption = NULL;
  InitializeListHead (&BdsBootOptionList);

  //
  // Connect all prior to entering the platform setup menu.
  //
  if (!gConnectAllHappened) {
    BdsLibConnectAllDriversToAllControllers ();
    gConnectAllHappened = TRUE;
  }
  //
  // BugBug: Here we can not remove the legacy refresh macro, so we need
  // get the boot order every time from "BootOrder" variable.
  // Recreate the boot option list base on the BootOrder variable
  //
  BdsLibEnumerateAllBootOption (&BdsBootOptionList);

  mBootOptionsList  = &BdsBootOptionList;

  HiiHandle = gBootManagerPrivate.HiiHandle;

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

  mKeyInput = 0;

  for (Link = BdsBootOptionList.ForwardLink; Link != &BdsBootOptionList; Link = Link->ForwardLink) {
    Option = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);

    //
    // At this stage we are creating a menu entry, thus the Keys are reproduceable
    //
    mKeyInput++;

    //
    // Don't display the boot option marked as LOAD_OPTION_HIDDEN
    //
    if (Option->Attribute & LOAD_OPTION_HIDDEN) {
      continue;
    }

    HiiLibNewString (HiiHandle, &Token, Option->Description);

    TempStr = DevicePathToStr (Option->DevicePath);
    TempSize = StrSize (TempStr);
    HelpString = AllocateZeroPool (TempSize + StrSize (L"Device Path : "));
    StrCat (HelpString, L"Device Path : ");
    StrCat (HelpString, TempStr);

    HiiLibNewString (HiiHandle, &HelpToken, HelpString);

    CreateActionOpCode (
      mKeyInput,
      Token,
      HelpToken,
      EFI_IFR_FLAG_CALLBACK,
      0,
      &UpdateData
      );
  }

  IfrLibUpdateForm (
    HiiHandle,
    &mBootManagerGuid,
    BOOT_MANAGER_FORM_ID,
    LABEL_BOOT_OPTION,
    FALSE,
    &UpdateData
    );
  FreePool (UpdateData.Data);

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

  ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
  Status = gFormBrowser2->SendForm (
                           gFormBrowser2,
                           &HiiHandle,
                           1,
                           NULL,
                           0,
                           NULL,
                           &ActionRequest
                           );
  if (ActionRequest == EFI_BROWSER_ACTION_REQUEST_RESET) {
    EnableResetRequired ();
  }

  if (gOption == NULL) {
    gBS->RaiseTPL (TPL_APPLICATION);
    return ;
  }

  //
  //Will leave browser, check any reset required change is applied? if yes, reset system
  //
  SetupResetReminder ();

  //
  // Raise the TPL level back to TPL_APPLICATION
  //
  gBS->RaiseTPL (TPL_APPLICATION);

  //
  // parse the selected option
  //
  Status = BdsLibBootViaBootOption (gOption, gOption->DevicePath, &ExitDataSize, &ExitData);

  if (!EFI_ERROR (Status)) {
    gOption->StatusString = GetStringById (STRING_TOKEN (STR_BOOT_SUCCEEDED));
    PlatformBdsBootSuccess (gOption);
  } else {
    gOption->StatusString = GetStringById (STRING_TOKEN (STR_BOOT_FAILED));
    PlatformBdsBootFail (gOption, Status, ExitData, ExitDataSize);
    gST->ConOut->OutputString (
                  gST->ConOut,
                  GetStringById (STRING_TOKEN (STR_ANY_KEY_CONTINUE))
                  );
    gBS->RestoreTPL (TPL_APPLICATION);
    //
    // BdsLibUiWaitForSingleEvent (gST->ConIn->WaitForKey, 0);
    //
    gBS->RaiseTPL (TPL_APPLICATION);
    gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
  }
}