From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
 .../HighPrecisionEventTimerTable.h                 | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 roms/edk2/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h

(limited to 'roms/edk2/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h')

diff --git a/roms/edk2/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h b/roms/edk2/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
new file mode 100644
index 000000000..168770ff6
--- /dev/null
+++ b/roms/edk2/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
@@ -0,0 +1,62 @@
+/** @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 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
+#define _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
+
+#include <IndustryStandard/Acpi.h>
+
+//
+// Ensure proper structure formats
+//
+#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 {
+  EFI_ACPI_DESCRIPTION_HEADER             Header;
+  UINT32                                  EventTimerBlockId;
+  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  BaseAddressLower32Bit;
+  UINT8                                   HpetNumber;
+  UINT16                                  MainCounterMinimumClockTickInPeriodicMode;
+  UINT8                                   PageProtectionAndOemAttribute;
+} EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_HEADER;
+
+///
+/// HPET Revision (defined in spec)
+///
+#define EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_REVISION  0x01
+
+//
+// Page protection setting
+// Values 3 through 15 are reserved for use by the specification
+//
+#define EFI_ACPI_NO_PAGE_PROTECTION   0
+#define EFI_ACPI_4KB_PAGE_PROTECTION  1
+#define EFI_ACPI_64KB_PAGE_PROTECTION 2
+
+#pragma pack()
+
+#endif
-- 
cgit 1.2.3-korg