| 1 | /** @file
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| 2 | ACPI Watchdog Action Table (WADT) as defined at
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| 3 | Microsoft Hardware Watchdog Timers Design Specification.
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| 4 |
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| 5 | Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 | **/
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| 8 |
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| 9 | #ifndef _WATCHDOG_ACTION_TABLE_H_
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| 10 | #define _WATCHDOG_ACTION_TABLE_H_
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| 11 |
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| 12 | #include <IndustryStandard/Acpi.h>
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| 13 |
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| 14 | //
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| 15 | // Ensure proper structure formats
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| 16 | //
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| 17 | #pragma pack(1)
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| 18 | ///
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| 19 | /// Watchdog Action Table definition.
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| 20 | ///
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| 21 | typedef struct {
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| 22 | EFI_ACPI_DESCRIPTION_HEADER Header;
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| 23 | UINT32 WatchdogHeaderLength;
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| 24 | UINT16 PCISegment;
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| 25 | UINT8 PCIBusNumber;
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| 26 | UINT8 PCIDeviceNumber;
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| 27 | UINT8 PCIFunctionNumber;
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| 28 | UINT8 Reserved_45[3];
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| 29 | UINT32 TimerPeriod;
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| 30 | UINT32 MaxCount;
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| 31 | UINT32 MinCount;
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| 32 | UINT8 WatchdogFlags;
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| 33 | UINT8 Reserved_61[3];
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| 34 | UINT32 NumberWatchdogInstructionEntries;
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| 35 | } EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE;
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| 36 |
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| 37 | ///
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| 38 | /// Watchdog Instruction Entries
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| 39 | ///
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| 40 | typedef struct {
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| 41 | UINT8 WatchdogAction;
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| 42 | UINT8 InstructionFlags;
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| 43 | UINT8 Reserved_2[2];
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| 44 | EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE RegisterRegion;
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| 45 | UINT32 Value;
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| 46 | UINT32 Mask;
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| 47 | } EFI_ACPI_WATCHDOG_ACTION_1_0_WATCHDOG_ACTION_INSTRUCTION_ENTRY;
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| 48 |
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| 49 | #pragma pack()
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| 50 |
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| 51 | ///
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| 52 | /// WDAT Revision (defined in spec)
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| 53 | ///
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| 54 | #define EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE_REVISION 0x01
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| 55 |
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| 56 | //
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| 57 | // WDAT 1.0 Flags
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| 58 | //
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| 59 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ENABLED 0x1
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| 60 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_STOPPED_IN_SLEEP_STATE 0x80
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| 61 |
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| 62 | //
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| 63 | // WDAT 1.0 Watchdog Actions
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| 64 | //
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| 65 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_RESET 0x1
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| 66 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_CURRENT_COUNTDOWN_PERIOD 0x4
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| 67 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_COUNTDOWN_PERIOD 0x5
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| 68 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_COUNTDOWN_PERIOD 0x6
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| 69 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_RUNNING_STATE 0x8
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| 70 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_RUNNING_STATE 0x9
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| 71 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_STOPPED_STATE 0xA
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| 72 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_STOPPED_STATE 0xB
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| 73 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_REBOOT 0x10
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| 74 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_REBOOT 0x11
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| 75 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_SHUTDOWN 0x12
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| 76 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_SHUTDOWN 0x13
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| 77 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_WATCHDOG_STATUS 0x20
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| 78 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_WATCHDOG_STATUS 0x21
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| 79 |
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| 80 | //
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| 81 | // WDAT 1.0 Watchdog Action Entry Instruction Flags
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| 82 | //
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| 83 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_VALUE 0x0
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| 84 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_COUNTDOWN 0x1
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| 85 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_VALUE 0x2
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| 86 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_COUNTDOWN 0x3
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| 87 | #define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_PRESERVE_REGISTER 0x80
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| 88 |
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| 89 | #endif
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