/** @file
  ACPI Watchdog Action Table (WADT) as defined at
  Microsoft Hardware Watchdog Timers Design Specification.

  Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#pragma once

#include <IndustryStandard/Acpi.h>

//
// Ensure proper structure formats
//
#pragma pack(1)
///
/// Watchdog Action Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         WatchdogHeaderLength;
  UINT16                         PCISegment;
  UINT8                          PCIBusNumber;
  UINT8                          PCIDeviceNumber;
  UINT8                          PCIFunctionNumber;
  UINT8                          Reserved_45[3];
  UINT32                         TimerPeriod;
  UINT32                         MaxCount;
  UINT32                         MinCount;
  UINT8                          WatchdogFlags;
  UINT8                          Reserved_61[3];
  UINT32                         NumberWatchdogInstructionEntries;
} EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE;

///
/// Watchdog Instruction Entries
///
typedef struct {
  UINT8                                     WatchdogAction;
  UINT8                                     InstructionFlags;
  UINT8                                     Reserved_2[2];
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    RegisterRegion;
  UINT32                                    Value;
  UINT32                                    Mask;
} EFI_ACPI_WATCHDOG_ACTION_1_0_WATCHDOG_ACTION_INSTRUCTION_ENTRY;

#pragma pack()

///
/// WDAT Revision (defined in spec)
///
#define EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE_REVISION  0x01

//
// WDAT 1.0 Flags
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ENABLED                 0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_STOPPED_IN_SLEEP_STATE  0x80

//
// WDAT 1.0 Watchdog Actions
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_RESET                           0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_CURRENT_COUNTDOWN_PERIOD  0x4
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_COUNTDOWN_PERIOD          0x5
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_COUNTDOWN_PERIOD            0x6
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_RUNNING_STATE             0x8
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_RUNNING_STATE               0x9
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_STOPPED_STATE             0xA
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_STOPPED_STATE               0xB
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_REBOOT                    0x10
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_REBOOT                      0x11
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_SHUTDOWN                  0x12
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_SHUTDOWN                    0x13
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_WATCHDOG_STATUS           0x20
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_WATCHDOG_STATUS             0x21

//
// WDAT 1.0 Watchdog Action Entry Instruction Flags
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_VALUE         0x0
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_COUNTDOWN     0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_VALUE        0x2
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_COUNTDOWN    0x3
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_PRESERVE_REGISTER  0x80
