MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c

   1 /** @file
   2   PEI Services Table Pointer Library.
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   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   Module Name:  PeiServicesTablePointer.c
  14
  15 **/
  16
  17
  18
  19 //
  20 // Include common header file for this module.
  21 //
  22 #include "CommonHeader.h"
  23
  24 static EFI_PEI_SERVICES  **gPeiServices;
  25
  26 /**
  27   The function returns the pointer to PEI services.
  28
  29   The function returns the pointer to PEI services.
  30   It will ASSERT() if the pointer to PEI services is NULL.
  31
  32   @retval  The pointer to PeiServices.
  33
  34 **/
  35 EFI_PEI_SERVICES **
  36 GetPeiServicesTablePointer (
  37   VOID
  38   )
  39 {
  40   ASSERT (gPeiServices != NULL);
  41   return gPeiServices;
  42 }
  43
  44
  45 /**
  46   The constructor function caches the pointer to PEI services.
  47
  48   The constructor function caches the pointer to PEI services.
  49   It will always return EFI_SUCCESS.
  50
  51   @param  FfsHeader   Pointer to FFS header the loaded driver.
  52   @param  PeiServices Pointer to the PEI services.
  53
  54   @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
  55
  56 **/
  57 EFI_STATUS
  58 EFIAPI
  59 PeiServicesTablePointerLibConstructor (
  60   IN EFI_FFS_FILE_HEADER  *FfsHeader,
  61   IN EFI_PEI_SERVICES     **PeiServices
  62   )
  63 {
  64   gPeiServices = PeiServices;
  65   return EFI_SUCCESS;
  66 }