MdePkg/Include/Protocol/RealTimeClock.h

   1 /** @file
   2   Real Time clock Architectural Protocol as defined in PI Specification VOLUME 2 DXE
   3
   4   This code abstracts time and data functions. Used to provide
   5   Time and date related EFI runtime services.
   6
   7   The GetTime (), SetTime (), GetWakeupTime (), and SetWakeupTime () UEFI 2.0
   8   services are added to the EFI system table and the
   9   EFI_REAL_TIME_CLOCK_ARCH_PROTOCOL_GUID protocol is registered with a NULL
  10   pointer.
  11
  12   No CRC of the EFI system table is required, since that is done in the DXE core.
  13
  14   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
  15   SPDX-License-Identifier: BSD-2-Clause-Patent
  16
  17 **/
  18
  19 #ifndef __ARCH_PROTOCOL_REAL_TIME_CLOCK_H__
  20 #define __ARCH_PROTOCOL_REAL_TIME_CLOCK_H__
  21
  22 ///
  23 /// Global ID for the Real Time Clock Architectural Protocol
  24 ///
  25 #define EFI_REAL_TIME_CLOCK_ARCH_PROTOCOL_GUID \
  26   { 0x27CFAC87, 0x46CC, 0x11d4, {0x9A, 0x38, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D } }
  27
  28 extern EFI_GUID  gEfiRealTimeClockArchProtocolGuid;
  29
  30 #endif