MdePkg/Include/IndustryStandard/WatchdogActionTable.h

   1 /** @file
   2   ACPI Watchdog Action Table as defined at
   3   Microsoft Hardware Watchdog Timer Specification.
   4
   5   Copyright (c) 2008, Intel Corporation
   6   All rights reserved. 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
  16 #ifndef _WATCHDOG_ACTION_TABLE_H_
  17 #define _WATCHDOG_ACTION_TABLE_H_
  18
  19 #include <IndustryStandard/Acpi.h>
  20
  21 //
  22 // Ensure proper structure formats
  23 //
  24 #pragma pack(1)
  25 ///
  26 /// Watchdog Action Table definition.
  27 ///
  28 typedef struct {
  29   EFI_ACPI_DESCRIPTION_HEADER             Header;
  30   UINT32                                  WatchdogHeaderLength;
  31   UINT16                                  PCISegment;
  32   UINT8                                   PCIBusNumber;
  33   UINT8                                   PCIDeviceNumber;
  34   UINT8                                   PCIFunctionNumber;
  35   UINT8                                   Reserved_45[3];
  36   UINT32                                  TimerPeriod;
  37   UINT32                                  MaxCount;
  38   UINT32                                  MinCount;
  39   UINT8                                   WatchdogFlags;
  40   UINT8                                   Reserved_61[3];
  41   UINT32                                  NumberWatchdogInstructionEntries;
  42 } EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE;
  43
  44 typedef struct {
  45   UINT8                                   WatchdogAction;
  46   UINT8                                   InstructionFlags;
  47   UINT8                                   Reserved_2[2];
  48   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  RegisterRegion;
  49   UINT32                                  Value;
  50   UINT32                                  Mask;
  51 } EFI_ACPI_WATCHDOG_ACTION_1_0_WATCHDOG_ACTION_INSTRUCTION_ENTRY;
  52
  53 #pragma pack()
  54
  55 ///
  56 /// WDAT Revision (defined in spec)
  57 ///
  58 #define EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE_REVISION       0x01
  59
  60 ///
  61 /// WDAT 1.0 Flags
  62 ///
  63 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ENABLED                0x1
  64 #define EFI_ACPI_WDAT_1_0_WATCHDOG_STOPPED_IN_SLEEP_STATE 0x80
  65
  66 //
  67 // WDAT 1.0 Watchdog Actions
  68 //
  69 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_RESET                          0x1
  70 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_CURRENT_COUNTDOWN_PERIOD 0x4
  71 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_COUNTDOWN_PERIOD         0x5
  72 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_COUNTDOWN_PERIOD           0x6
  73 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_RUNNING_STATE            0x8
  74 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_RUNNING_STATE              0x9
  75 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_STOPPED_STATE            0xA
  76 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_STOPPED_STATE              0xB
  77 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_REBOOT                   0x10
  78 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_REBOOT                     0x11
  79 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_SHUTDOWN                 0x12
  80 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_SHUTDOWN                   0x13
  81 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_WATCHDOG_STATUS          0x20
  82 #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_WATCHDOG_STATUS            0x21
  83
  84 //
  85 // WDAT 1.0 Watchdog Action Entry Instruction Flags
  86 //
  87 #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_VALUE        0x0
  88 #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_COUNTDOWN    0x1
  89 #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_VALUE       0x2
  90 #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_COUNTDOWN   0x3
  91 #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_PRESERVE_REGISTER 0x80
  92
  93 #endif