projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 42eedea9 | 1 | /** @file\r |
| 000f6a28 | 2 | ACPI high precision event timer table definition, at www.intel.com\r |
| 568eb0cb | 3 | Specification name is IA-PC HPET (High Precision Event Timers) Specification.\r |
| 568eb0cb | 4 | \r |
| 9095d37b LG |
5 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| 6 | This program and the accompanying materials\r | |
| 7 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 8 | which accompanies this distribution. The full text of the license may be found at\r | |
| 9 | http://opensource.org/licenses/bsd-license.php\r | |
| 10 | \r | |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 568eb0cb | 13 | **/\r |
| 14 | \r | |
| 15 | #ifndef _HIGH_PRECISION_EVENT_TIMER_TABLE_H_\r | |
| 16 | #define _HIGH_PRECISION_EVENT_TIMER_TABLE_H_\r | |
| 17 | \r | |
| ecc40942 | 18 | #include <IndustryStandard/Acpi.h>\r |
| 19 | \r | |
| 568eb0cb | 20 | //\r |
| 21 | // Ensure proper structure formats\r | |
| 22 | //\r | |
| 23 | #pragma pack(1)\r | |
| 1bc5d021 | 24 | \r |
| c9734786 MH |
25 | ///\r |
| 26 | /// HPET Event Timer Block ID described in IA-PC HPET Specification, 3.2.4.\r | |
| 27 | ///\r | |
| 28 | typedef union {\r | |
| 29 | struct {\r | |
| 30 | UINT32 Revision : 8;\r | |
| 31 | UINT32 NumberOfTimers : 5;\r | |
| 32 | UINT32 CounterSize : 1;\r | |
| 33 | UINT32 Reserved : 1;\r | |
| 34 | UINT32 LegacyRoute : 1;\r | |
| 35 | UINT32 VendorId : 16;\r | |
| 36 | } Bits;\r | |
| 37 | UINT32 Uint32;\r | |
| 38 | } EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_BLOCK_ID;\r | |
| 39 | \r | |
| 40 | \r | |
| 1bc5d021 | 41 | ///\r |
| 42 | /// High Precision Event Timer Table header definition.\r | |
| 43 | ///\r | |
| 568eb0cb | 44 | typedef struct {\r |
| 45 | EFI_ACPI_DESCRIPTION_HEADER Header;\r | |
| 46 | UINT32 EventTimerBlockId;\r | |
| 47 | EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE BaseAddressLower32Bit;\r | |
| 48 | UINT8 HpetNumber;\r | |
| 49 | UINT16 MainCounterMinimumClockTickInPeriodicMode;\r | |
| 50 | UINT8 PageProtectionAndOemAttribute;\r | |
| 51 | } EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_HEADER;\r | |
| 52 | \r | |
| 1bc5d021 | 53 | ///\r |
| 54 | /// HPET Revision (defined in spec)\r | |
| 55 | ///\r | |
| 568eb0cb | 56 | #define EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_REVISION 0x01\r |
| 57 | \r | |
| 58 | //\r | |
| 59 | // Page protection setting\r | |
| 60 | // Values 3 through 15 are reserved for use by the specification\r | |
| 61 | //\r | |
| 62 | #define EFI_ACPI_NO_PAGE_PROTECTION 0\r | |
| 63 | #define EFI_ACPI_4KB_PAGE_PROTECTION 1\r | |
| 64 | #define EFI_ACPI_64KB_PAGE_PROTECTION 2\r | |
| 65 | \r | |
| 766f4bc1 | 66 | #pragma pack()\r |
| 67 | \r | |
| 568eb0cb | 68 | #endif\r |