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Diffstat (limited to 'MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h')
-rw-r--r--MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h28
1 files changed, 19 insertions, 9 deletions
diff --git a/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h b/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
index 97b1c45edfc9..d2bc6d57c401 100644
--- a/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
+++ b/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
@@ -1,15 +1,9 @@
/** @file
ACPI high precision event timer table definition, at www.intel.com
Specification name is IA-PC HPET (High Precision Event Timers) Specification.
-
- Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
- 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.
+
+ Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
@@ -23,6 +17,22 @@
#pragma pack(1)
///
+/// HPET Event Timer Block ID described in IA-PC HPET Specification, 3.2.4.
+///
+typedef union {
+ struct {
+ UINT32 Revision : 8;
+ UINT32 NumberOfTimers : 5;
+ UINT32 CounterSize : 1;
+ UINT32 Reserved : 1;
+ UINT32 LegacyRoute : 1;
+ UINT32 VendorId : 16;
+ } Bits;
+ UINT32 Uint32;
+} EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_BLOCK_ID;
+
+
+///
/// High Precision Event Timer Table header definition.
///
typedef struct {