IntelFrameworkModulePkg/Library/PeiS3Lib/PeiS3Lib.c

   1 /**@file
   2   S3 Library. This library class defines a set of methods related do S3 mode
   3
   4 Copyright (c) 2006 - 2008 Intel Corporation
   5 All rights reserved. This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14 #include <FrameworkPei.h>
  15 #include <Library/PeiServicesLib.h>
  16 #include <Library/PeiServicesTablePointerLib.h>
  17 #include <Library/DebugLib.h>
  18
  19 #include <Ppi/S3Resume.h>
  20
  21 /**
  22   This function is responsible for calling the S3 resume vector in the ACPI Tables.
  23
  24   @retval EFI_SUCESS   Sucess to restore config from S3.
  25   @retval Others       Fail to restore config from S3.
  26 **/
  27 EFI_STATUS
  28 EFIAPI
  29 AcpiS3ResumeOs (
  30   VOID
  31   )
  32 {
  33   EFI_STATUS              Status;
  34   EFI_PEI_S3_RESUME_PPI   *S3Resume;
  35
  36   Status = PeiServicesLocatePpi (
  37              &gEfiPeiS3ResumePpiGuid,
  38              0,
  39              NULL,
  40              (VOID **)&S3Resume
  41              );
  42   ASSERT_EFI_ERROR (Status);
  43
  44   return S3Resume->S3RestoreConfig ((EFI_PEI_SERVICES  **) GetPeiServicesTablePointer());
  45 }
  46