/*++

Copyright (c) 2004 - 2008, Intel Corporation
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.

Module Name:

  DeviceManager.c

Abstract:

  The platform device manager reference implement

--*/

#include "DeviceManager.h"

DEVICE_MANAGER_CALLBACK_DATA  gDeviceManagerPrivate = {
  DEVICE_MANAGER_CALLBACK_DATA_SIGNATURE,
  NULL,
  NULL,
  {
    FakeExtractConfig,
    FakeRouteConfig,
    DeviceManagerCallback
  }
};

EFI_GUID mDeviceManagerGuid = DEVICE_MANAGER_FORMSET_GUID;

DEVICE_MANAGER_MENU_ITEM  mDeviceManagerMenuItemTable[] = {
  { STRING_TOKEN (STR_DISK_DEVICE),     EFI_DISK_DEVICE_CLASS },
  { STRING_TOKEN (STR_VIDEO_DEVICE),    EFI_VIDEO_DEVICE_CLASS },
  { STRING_TOKEN (STR_NETWORK_DEVICE),  EFI_NETWORK_DEVICE_CLASS },
  { STRING_TOKEN (STR_INPUT_DEVICE),    EFI_INPUT_DEVICE_CLASS },
  { STRING_TOKEN (STR_ON_BOARD_DEVICE), EFI_ON_BOARD_DEVICE_CLASS },
  { STRING_TOKEN (STR_OTHER_DEVICE),    EFI_OTHER_DEVICE_CLASS }
};

#define MENU_ITEM_NUM  \
  (sizeof (mDeviceManagerMenuItemTable) / sizeof (DEVICE_MANAGER_MENU_ITEM))

EFI_STATUS
EFIAPI
DeviceManagerCallback (
  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.

--*/
{
  DEVICE_MANAGER_CALLBACK_DATA *PrivateData;

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

  PrivateData = DEVICE_MANAGER_CALLBACK_DATA_FROM_THIS (This);

  switch (QuestionId) {
  case DEVICE_MANAGER_KEY_VBIOS:
    PrivateData->VideoBios = Value->u8;
    gRT->SetVariable (
           L"VBIOS",
           &gEfiGenericPlatformVariableGuid,
           EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
           sizeof (UINT8),
           &PrivateData->VideoBios
           );

    //
    // Tell browser not to ask for confirmation of changes,
    // since we have already applied.
    //
    *ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;
    break;

  default:
    //
    // The key corresponds the Handle Index which was requested to be displayed
    //
    gCallbackKey = QuestionId;

    //
    // Request to exit SendForm(), so as to switch to selected form
    //
    *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
    break;
  }

  return EFI_SUCCESS;
}

EFI_STATUS
InitializeDeviceManager (
  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 (&gDeviceManagerPrivate.DriverHandle);
  if (EFI_ERROR (Status)) {
    return Status;
  }

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

  //
  // Publish our HII data
  //
  PackageList = HiiLibPreparePackageList (2, &mDeviceManagerGuid, DeviceManagerVfrBin, BdsStrings);
  ASSERT (PackageList != NULL);

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

  return Status;
}

EFI_STATUS
CallDeviceManager (
  VOID
  )
/*++

Routine Description:

  Call the browser and display the device manager

Arguments:

  None

Returns:
  EFI_SUCCESS            - Operation is successful.
  EFI_INVALID_PARAMETER  - If the inputs to SendForm function is not valid.

--*/
{
  EFI_STATUS                  Status;
  UINTN                       Count;
  UINTN                       Index;
  CHAR16                      *String;
  UINTN                       StringLength;
  EFI_HII_UPDATE_DATA         UpdateData[MENU_ITEM_NUM];
  EFI_STRING_ID               Token;
  EFI_STRING_ID               TokenHelp;
  IFR_OPTION                  *IfrOptionList;
  UINT8                       *VideoOption;
  UINTN                       VideoOptionSize;
  EFI_HII_HANDLE              *HiiHandles;
  UINTN                       HandleBufferLength;
  UINTN                       NumberOfHiiHandles;
  EFI_HII_HANDLE              HiiHandle;
  UINT16                      FormSetClass;
  EFI_STRING_ID               FormSetTitle;
  EFI_STRING_ID               FormSetHelp;
  EFI_BROWSER_ACTION_REQUEST  ActionRequest;
  EFI_HII_PACKAGE_LIST_HEADER *PackageList;

  IfrOptionList       = NULL;
  VideoOption         = NULL;
  HiiHandles          = NULL;
  HandleBufferLength  = 0;

  Status        = EFI_SUCCESS;
  gCallbackKey  = 0;

  //
  // Connect all prior to entering the platform setup menu.
  //
  if (!gConnectAllHappened) {
    BdsLibConnectAllDriversToAllControllers ();
    gConnectAllHappened = TRUE;
  }

  //
  // Create Subtitle OpCodes
  //
  for (Index = 0; Index < MENU_ITEM_NUM; Index++) {
    //
    // Allocate space for creation of UpdateData Buffer
    //
    UpdateData[Index].BufferSize = 0x1000;
    UpdateData[Index].Offset = 0;
    UpdateData[Index].Data = AllocatePool (0x1000);
    ASSERT (UpdateData[Index].Data != NULL);

    CreateSubTitleOpCode (mDeviceManagerMenuItemTable[Index].StringId, 0, 0, 1,  &UpdateData[Index]);
  }

  //
  // Get all the Hii handles
  //
  Status = HiiLibGetHiiHandles (&HandleBufferLength, &HiiHandles);
  ASSERT_EFI_ERROR (Status);

  HiiHandle = gDeviceManagerPrivate.HiiHandle;

  StringLength  = 0x1000;
  String        = AllocateZeroPool (StringLength);
  ASSERT (String != NULL);

  //
  // Search for formset of each class type
  //
  NumberOfHiiHandles = HandleBufferLength / sizeof (EFI_HII_HANDLE);
  for (Index = 0; Index < NumberOfHiiHandles; Index++) {
    IfrLibExtractClassFromHiiHandle (HiiHandles[Index], &FormSetClass, &FormSetTitle, &FormSetHelp);

    if (FormSetClass == EFI_NON_DEVICE_CLASS) {
      continue;
    }

    Token = 0;
    *String = 0;
    StringLength = 0x1000;
    HiiLibGetString (HiiHandles[Index], FormSetTitle, String, &StringLength);
    HiiLibNewString (HiiHandle, &Token, String);

    TokenHelp = 0;
    *String = 0;
    StringLength = 0x1000;
    HiiLibGetString (HiiHandles[Index], FormSetHelp, String, &StringLength);
    HiiLibNewString (HiiHandle, &TokenHelp, String);

    for (Count = 0; Count < MENU_ITEM_NUM; Count++) {
      if (FormSetClass & mDeviceManagerMenuItemTable[Count].Class) {
        CreateActionOpCode (
          (EFI_QUESTION_ID) (Index + DEVICE_KEY_OFFSET),
          Token,
          TokenHelp,
          EFI_IFR_FLAG_CALLBACK,
          0,
          &UpdateData[Count]
          );
      }
    }
  }
  FreePool (String);

  for (Index = 0; Index < MENU_ITEM_NUM; Index++) {
    //
    // Add End Opcode for Subtitle
    //
    CreateEndOpCode (&UpdateData[Index]);

    IfrLibUpdateForm (
      HiiHandle,
      &mDeviceManagerGuid,
      DEVICE_MANAGER_FORM_ID,
      mDeviceManagerMenuItemTable[Index].Class,
      FALSE,
      &UpdateData[Index]
      );
  }

  //
  // Add oneof for video BIOS selection
  //
  VideoOption = BdsLibGetVariableAndSize (
                  L"VBIOS",
                  &gEfiGenericPlatformVariableGuid,
                  &VideoOptionSize
                  );
  if (NULL == VideoOption) {
    gDeviceManagerPrivate.VideoBios = 0;
  } else {
    gDeviceManagerPrivate.VideoBios = VideoOption[0];
    FreePool (VideoOption);
  }

  ASSERT (gDeviceManagerPrivate.VideoBios <= 1);

  IfrOptionList = AllocatePool (2 * sizeof (IFR_OPTION));
  ASSERT (IfrOptionList != NULL);
  IfrOptionList[0].Flags        = 0;
  IfrOptionList[0].StringToken  = STRING_TOKEN (STR_ONE_OF_PCI);
  IfrOptionList[0].Value.u8     = 0;
  IfrOptionList[1].Flags        = 0;
  IfrOptionList[1].StringToken  = STRING_TOKEN (STR_ONE_OF_AGP);
  IfrOptionList[1].Value.u8     = 1;
  IfrOptionList[gDeviceManagerPrivate.VideoBios].Flags |= EFI_IFR_OPTION_DEFAULT;

  UpdateData[0].Offset = 0;
  CreateOneOfOpCode (
    DEVICE_MANAGER_KEY_VBIOS,
    0,
    0,
    STRING_TOKEN (STR_ONE_OF_VBIOS),
    STRING_TOKEN (STR_ONE_OF_VBIOS_HELP),
    EFI_IFR_FLAG_CALLBACK,
    EFI_IFR_NUMERIC_SIZE_1,
    IfrOptionList,
    2,
    &UpdateData[0]
    );

  IfrLibUpdateForm (
    HiiHandle,
    &mDeviceManagerGuid,
    DEVICE_MANAGER_FORM_ID,
    LABEL_VBIOS,
    FALSE,
    &UpdateData[0]
    );

  //
  // 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 ();
  }

  //
  // We will have returned from processing a callback - user either hit ESC to exit, or selected
  // a target to display
  //
  if (gCallbackKey != 0) {
    ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
    Status = gFormBrowser2->SendForm (
                             gFormBrowser2,
                             &HiiHandles[gCallbackKey - DEVICE_KEY_OFFSET],
                             1,
                             NULL,
                             0,
                             NULL,
                             &ActionRequest
                             );

    if (ActionRequest == EFI_BROWSER_ACTION_REQUEST_RESET) {
      EnableResetRequired ();
    }

    //
    // Force return to Device Manager
    //
    gCallbackKey = FRONT_PAGE_KEY_DEVICE_MANAGER;
  }

  //
  // Cleanup dynamic created strings in HII database by reinstall the packagelist
  //
  gHiiDatabase->RemovePackageList (gHiiDatabase, HiiHandle);
  PackageList = HiiLibPreparePackageList (2, &mDeviceManagerGuid, DeviceManagerVfrBin, BdsStrings);
  ASSERT (PackageList != NULL);
  Status = gHiiDatabase->NewPackageList (
                           gHiiDatabase,
                           PackageList,
                           gDeviceManagerPrivate.DriverHandle,
                           &gDeviceManagerPrivate.HiiHandle
                           );
  FreePool (PackageList);

  for (Index = 0; Index < MENU_ITEM_NUM; Index++) {
    FreePool (UpdateData[Index].Data);
  }
  FreePool (HiiHandles);

  gBS->RaiseTPL (TPL_APPLICATION);

  return Status;
}