| 1 | /** @file
|
|---|
| 2 | ACPI high precision event timer table definition, at www.intel.com
|
|---|
| 3 | Specification name is IA-PC HPET (High Precision Event Timers) Specification.
|
|---|
| 4 |
|
|---|
| 5 | Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
|
|---|
| 6 | This program and the accompanying materials
|
|---|
| 7 | are licensed and made available under the terms and conditions of the BSD License
|
|---|
| 8 | which accompanies this distribution. The full text of the license may be found at
|
|---|
| 9 | http://opensource.org/licenses/bsd-license.php
|
|---|
| 10 |
|
|---|
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|---|
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|---|
| 13 | **/
|
|---|
| 14 |
|
|---|
| 15 | #ifndef _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
|
|---|
| 16 | #define _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
|
|---|
| 17 |
|
|---|
| 18 | #include <IndustryStandard/Acpi.h>
|
|---|
| 19 |
|
|---|
| 20 | //
|
|---|
| 21 | // Ensure proper structure formats
|
|---|
| 22 | //
|
|---|
| 23 | #pragma pack(1)
|
|---|
| 24 |
|
|---|
| 25 | ///
|
|---|
| 26 | /// High Precision Event Timer Table header definition.
|
|---|
| 27 | ///
|
|---|
| 28 | typedef struct {
|
|---|
| 29 | EFI_ACPI_DESCRIPTION_HEADER Header;
|
|---|
| 30 | UINT32 EventTimerBlockId;
|
|---|
| 31 | EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE BaseAddressLower32Bit;
|
|---|
| 32 | UINT8 HpetNumber;
|
|---|
| 33 | UINT16 MainCounterMinimumClockTickInPeriodicMode;
|
|---|
| 34 | UINT8 PageProtectionAndOemAttribute;
|
|---|
| 35 | } EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_HEADER;
|
|---|
| 36 |
|
|---|
| 37 | ///
|
|---|
| 38 | /// HPET Revision (defined in spec)
|
|---|
| 39 | ///
|
|---|
| 40 | #define EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_REVISION 0x01
|
|---|
| 41 |
|
|---|
| 42 | //
|
|---|
| 43 | // Page protection setting
|
|---|
| 44 | // Values 3 through 15 are reserved for use by the specification
|
|---|
| 45 | //
|
|---|
| 46 | #define EFI_ACPI_NO_PAGE_PROTECTION 0
|
|---|
| 47 | #define EFI_ACPI_4KB_PAGE_PROTECTION 1
|
|---|
| 48 | #define EFI_ACPI_64KB_PAGE_PROTECTION 2
|
|---|
| 49 |
|
|---|
| 50 | #pragma pack()
|
|---|
| 51 |
|
|---|
| 52 | #endif
|
|---|
