/****************************************************************************** * * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #ifndef _ACOBJECT_H #define _ACOBJECT_H /* acpisrc:StructDefs -- for acpisrc conversion */ /* * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher * to the interpreter, and to keep track of the various handlers such as * address space handlers and notify handlers. The object is a constant * size in order to allow it to be cached and reused. * * Note: The object is optimized to be aligned and will not work if it is * byte-packed. */ #if ACPI_MACHINE_WIDTH == 64 #pragma pack(8) #else #pragma pack(4) #endif /******************************************************************************* * * Common Descriptors * ******************************************************************************/ /* * Common area for all objects. * * DescriptorType is used to differentiate between internal descriptors, and * must be in the same place across all descriptors * * Note: The DescriptorType and Type fields must appear in the identical * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT * structures. */ #define ACPI_OBJECT_COMMON_HEADER \ union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ UINT8 DescriptorType; /* To differentiate various internal objs */\ UINT8 Type; /* ACPI_OBJECT_TYPE */\ UINT16 ReferenceCount; /* For object deletion management */\ UINT8 Flags; /* * Note: There are 3 bytes available here before the * next natural alignment boundary (for both 32/64 cases) */ /* Values for Flag byte above */ #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */ #define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */ #define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */ #define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */ /****************************************************************************** * * Basic data types * *****************************************************************************/ typedef struct acpi_object_common { ACPI_OBJECT_COMMON_HEADER } ACPI_OBJECT_COMMON; typedef struct acpi_object_integer { ACPI_OBJECT_COMMON_HEADER UINT8 Fill[3]; /* Prevent warning on some compilers */ UINT64 Value; } ACPI_OBJECT_INTEGER; /* * Note: The String and Buffer object must be identical through the * pointer and length elements. There is code that depends on this. * * Fields common to both Strings and Buffers */ #define ACPI_COMMON_BUFFER_INFO(_Type) \ _Type *Pointer; \ UINT32 Length; /* Null terminated, ASCII characters only */ typedef struct acpi_object_string { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ } ACPI_OBJECT_STRING; typedef struct acpi_object_buffer { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ UINT32 AmlLength; UINT8 *AmlStart; ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ } ACPI_OBJECT_BUFFER; typedef struct acpi_object_package { ACPI_OBJECT_COMMON_HEADER ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ UINT8 *AmlStart; UINT32 AmlLength; UINT32 Count; /* # of elements in package */ } ACPI_OBJECT_PACKAGE; /****************************************************************************** * * Complex data types * *****************************************************************************/ typedef struct acpi_object_event { ACPI_OBJECT_COMMON_HEADER ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ } ACPI_OBJECT_EVENT; typedef struct acpi_object_mutex { ACPI_OBJECT_COMMON_HEADER UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ union acpi_operand_object *Next; /* Link for list of acquired mutexes */ ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ } ACPI_OBJECT_MUTEX; typedef struct acpi_object_region { ACPI_OBJECT_COMMON_HEADER UINT8 SpaceId; ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ union acpi_operand_object *Handler; /* Handler for region access */ union acpi_operand_object *Next; ACPI_PHYSICAL_ADDRESS Address; UINT32 Length; } ACPI_OBJECT_REGION; typedef struct acpi_object_method { ACPI_OBJECT_COMMON_HEADER UINT8 InfoFlags; UINT8 ParamCount; UINT8 SyncLevel; union acpi_operand_object *Mutex; union acpi_operand_object *Node; UINT8 *AmlStart; union { ACPI_INTERNAL_METHOD Implementation; union acpi_operand_object *Handler; } Dispatch; UINT32 AmlLength; ACPI_OWNER_ID OwnerId; UINT8 ThreadCount; } ACPI_OBJECT_METHOD; /* Flags for InfoFlags field above */ #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ #define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ #define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ /****************************************************************************** * * Objects that can be notified. All share a common NotifyInfo area. * *****************************************************************************/ /* * Common fields for objects that support ASL notifications */ #define ACPI_COMMON_NOTIFY_INFO \ union acpi_operand_object *NotifyList[2]; /* Handlers for system/device notifies */\ union acpi_operand_object *Handler; /* Handler for Address space */ /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ typedef struct acpi_object_notify_common { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO } ACPI_OBJECT_NOTIFY_COMMON; typedef struct acpi_object_device { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO ACPI_GPE_BLOCK_INFO *GpeBlock; } ACPI_OBJECT_DEVICE; typedef struct acpi_object_power_resource { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO UINT32 SystemLevel; UINT32 ResourceOrder; } ACPI_OBJECT_POWER_RESOURCE; typedef struct acpi_object_processor { ACPI_OBJECT_COMMON_HEADER /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ UINT8 ProcId; UINT8 Length; ACPI_COMMON_NOTIFY_INFO ACPI_IO_ADDRESS Address; } ACPI_OBJECT_PROCESSOR; typedef struct acpi_object_thermal_zone { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO } ACPI_OBJECT_THERMAL_ZONE; /****************************************************************************** * * Fields. All share a common header/info field. * *****************************************************************************/ /* * Common bitfield for the field objects * "Field Datum" -- a datum from the actual field object * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field */ #define ACPI_COMMON_FIELD_INFO \ UINT8 FieldFlags; /* Access, update, and lock bits */\ UINT8 Attribute; /* From AccessAs keyword */\ UINT8 AccessByteWidth; /* Read/Write size in bytes */\ ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ UINT32 BitLength; /* Length of field in bits */\ UINT32 BaseByteOffset; /* Byte offset within containing object */\ UINT32 Value; /* Value to store into the Bank or Index register */\ UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ UINT8 AccessLength; /* For serial regions/fields */ /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ typedef struct acpi_object_field_common { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ } ACPI_OBJECT_FIELD_COMMON; typedef struct acpi_object_region_field { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO UINT16 ResourceLength; union acpi_operand_object *RegionObj; /* Containing OpRegion object */ UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ UINT16 PinNumberIndex; /* Index relative to previous Connection/Template */ UINT8 *InternalPccBuffer; /* Internal buffer for fields associated with PCC */ } ACPI_OBJECT_REGION_FIELD; typedef struct acpi_object_bank_field { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *RegionObj; /* Containing OpRegion object */ union acpi_operand_object *BankObj; /* BankSelect Register object */ } ACPI_OBJECT_BANK_FIELD; typedef struct acpi_object_index_field { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO /* * No "RegionObj" pointer needed since the Index and Data registers * are each field definitions unto themselves. */ union acpi_operand_object *IndexObj; /* Index register */ union acpi_operand_object *DataObj; /* Data register */ } ACPI_OBJECT_INDEX_FIELD; /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ typedef struct acpi_object_buffer_field { ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO BOOLEAN IsCreateField; /* Special case for objects created by CreateField() */ union acpi_operand_object *BufferObj; /* Containing Buffer object */ } ACPI_OBJECT_BUFFER_FIELD; /****************************************************************************** * * Objects for handlers * *****************************************************************************/ typedef struct acpi_object_notify_handler { ACPI_OBJECT_COMMON_HEADER ACPI_NAMESPACE_NODE *Node; /* Parent device */ UINT32 HandlerType; /* Type: Device/System/Both */ ACPI_NOTIFY_HANDLER Handler; /* Handler address */ void *Context; union acpi_operand_object *Next[2]; /* Device and System handler lists */ } ACPI_OBJECT_NOTIFY_HANDLER; typedef struct acpi_object_addr_handler { ACPI_OBJECT_COMMON_HEADER UINT8 SpaceId; UINT8 HandlerFlags; ACPI_ADR_SPACE_HANDLER Handler; ACPI_NAMESPACE_NODE *Node; /* Parent device */ void *Context; ACPI_MUTEX ContextMutex; ACPI_ADR_SPACE_SETUP Setup; union acpi_operand_object *RegionList; /* Regions using this handler */ union acpi_operand_object *Next; } ACPI_OBJECT_ADDR_HANDLER; /* Flags for address handler (HandlerFlags) */ #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 /****************************************************************************** * * Special internal objects * *****************************************************************************/ /* * The Reference object is used for these opcodes: * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp * The Reference.Class differentiates these types. */ typedef struct acpi_object_reference { ACPI_OBJECT_COMMON_HEADER UINT8 Class; /* Reference Class */ UINT8 TargetType; /* Used for Index Op */ UINT8 Resolved; /* Reference has been resolved to a value */ void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ union acpi_operand_object **Where; /* Target of Index */ UINT8 *IndexPointer; /* Used for Buffers and Strings */ UINT8 *Aml; /* Used for deferred resolution of the ref */ UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ } ACPI_OBJECT_REFERENCE; /* Values for Reference.Class above */ typedef enum { ACPI_REFCLASS_LOCAL = 0, /* Method local */ ACPI_REFCLASS_ARG = 1, /* Method argument */ ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ ACPI_REFCLASS_DEBUG = 6, /* Debug object */ ACPI_REFCLASS_MAX = 6 } ACPI_REFERENCE_CLASSES; /* * Extra object is used as additional storage for types that * have AML code in their declarations (TermArgs) that must be * evaluated at run time. * * Currently: Region and FieldUnit types */ typedef struct acpi_object_extra { ACPI_OBJECT_COMMON_HEADER ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ ACPI_NAMESPACE_NODE *ScopeNode; void *RegionContext; /* Region-specific data */ UINT8 *AmlStart; UINT32 AmlLength; } ACPI_OBJECT_EXTRA; /* Additional data that can be attached to namespace nodes */ typedef struct acpi_object_data { ACPI_OBJECT_COMMON_HEADER ACPI_OBJECT_HANDLER Handler; void *Pointer; } ACPI_OBJECT_DATA; /* Structure used when objects are cached for reuse */ typedef struct acpi_object_cache_list { ACPI_OBJECT_COMMON_HEADER union acpi_operand_object *Next; /* Link for object cache and internal lists*/ } ACPI_OBJECT_CACHE_LIST; /****************************************************************************** * * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above * *****************************************************************************/ typedef union acpi_operand_object { ACPI_OBJECT_COMMON Common; ACPI_OBJECT_INTEGER Integer; ACPI_OBJECT_STRING String; ACPI_OBJECT_BUFFER Buffer; ACPI_OBJECT_PACKAGE Package; ACPI_OBJECT_EVENT Event; ACPI_OBJECT_METHOD Method; ACPI_OBJECT_MUTEX Mutex; ACPI_OBJECT_REGION Region; ACPI_OBJECT_NOTIFY_COMMON CommonNotify; ACPI_OBJECT_DEVICE Device; ACPI_OBJECT_POWER_RESOURCE PowerResource; ACPI_OBJECT_PROCESSOR Processor; ACPI_OBJECT_THERMAL_ZONE ThermalZone; ACPI_OBJECT_FIELD_COMMON CommonField; ACPI_OBJECT_REGION_FIELD Field; ACPI_OBJECT_BUFFER_FIELD BufferField; ACPI_OBJECT_BANK_FIELD BankField; ACPI_OBJECT_INDEX_FIELD IndexField; ACPI_OBJECT_NOTIFY_HANDLER Notify; ACPI_OBJECT_ADDR_HANDLER AddressSpace; ACPI_OBJECT_REFERENCE Reference; ACPI_OBJECT_EXTRA Extra; ACPI_OBJECT_DATA Data; ACPI_OBJECT_CACHE_LIST Cache; /* * Add namespace node to union in order to simplify code that accepts both * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share * a common DescriptorType field in order to differentiate them. */ ACPI_NAMESPACE_NODE Node; } ACPI_OPERAND_OBJECT; /****************************************************************************** * * ACPI_DESCRIPTOR - objects that share a common descriptor identifier * *****************************************************************************/ /* Object descriptor types */ #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ #define ACPI_DESC_TYPE_STATE 0x02 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A #define ACPI_DESC_TYPE_STATE_THREAD 0x0B #define ACPI_DESC_TYPE_WALK 0x0C #define ACPI_DESC_TYPE_PARSER 0x0D #define ACPI_DESC_TYPE_OPERAND 0x0E #define ACPI_DESC_TYPE_NAMED 0x0F #define ACPI_DESC_TYPE_MAX 0x0F typedef struct acpi_common_descriptor { void *CommonPointer; UINT8 DescriptorType; /* To differentiate various internal objs */ } ACPI_COMMON_DESCRIPTOR; typedef union acpi_descriptor { ACPI_COMMON_DESCRIPTOR Common; ACPI_OPERAND_OBJECT Object; ACPI_NAMESPACE_NODE Node; ACPI_PARSE_OBJECT Op; } ACPI_DESCRIPTOR; #pragma pack() #endif /* _ACOBJECT_H */