EdkNt32Pkg/Pei/BootMode/BootMode.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   BootMode.c
  15
  16 Abstract:
  17
  18   Tiano PEIM to provide the platform support functionality within Windows
  19
  20 --*/
  21
  22
  23
  24 //
  25 // Module globals
  26 //
  27 EFI_PEI_PPI_DESCRIPTOR  mPpiListBootMode = {
  28   (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
  29   &gEfiPeiMasterBootModePpiGuid,
  30   NULL
  31 };
  32
  33 EFI_PEI_PPI_DESCRIPTOR  mPpiListRecoveryBootMode = {
  34   (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
  35   &gEfiPeiBootInRecoveryModePpiGuid,
  36   NULL
  37 };
  38
  39 EFI_STATUS
  40 EFIAPI
  41 InitializeBootMode (
  42   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  43   IN EFI_PEI_SERVICES          **PeiServices
  44   )
  45 /*++
  46
  47 Routine Description:
  48
  49   Peform the boot mode determination logic
  50
  51 Arguments:
  52
  53   PeiServices - General purpose services available to every PEIM.
  54
  55 Returns:
  56
  57   Status -  EFI_SUCCESS if the boot mode could be set
  58
  59 --*/
  60 // TODO:    FfsHeader - add argument and description to function comment
  61 {
  62   EFI_STATUS  Status;
  63   UINTN       BootMode;
  64
  65   DEBUG ((EFI_D_ERROR, "NT32 Boot Mode PEIM Loaded\n"));
  66
  67   //
  68   // Let's assume things are OK if not told otherwise
  69   // Should we read an environment variable in order to easily change this?
  70   //
  71   BootMode  = BOOT_WITH_FULL_CONFIGURATION;
  72
  73   Status    = (**PeiServices).SetBootMode (PeiServices, (UINT8) BootMode);
  74   ASSERT_EFI_ERROR (Status);
  75
  76   Status = (**PeiServices).InstallPpi (PeiServices, &mPpiListBootMode);
  77   ASSERT_EFI_ERROR (Status);
  78
  79   if (BootMode == BOOT_IN_RECOVERY_MODE) {
  80     Status = (**PeiServices).InstallPpi (PeiServices, &mPpiListRecoveryBootMode);
  81     ASSERT_EFI_ERROR (Status);
  82   }
  83
  84   return Status;
  85 }