acobject.h

acpi tools for linux include acpiexec and acpixtract

/******************************************************************************
 *
 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT  (Internal object only)
 *       $Revision: 1.144 $
 *
 *****************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999 - 2008, 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.
 *
 *****************************************************************************/

#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
#define AOPOBJ_STATIC_POINTER       0x02
#define AOPOBJ_DATA_VALID           0x04
#define AOPOBJ_OBJECT_INITIALIZED   0x08
#define AOPOBJ_SETUP_COMPLETE       0x10
#define AOPOBJ_SINGLE_DATUM         0x20
#define AOPOBJ_INVALID              0x40 /* Used if host OS won't allow an OpRegion 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 */
    ACPI_INTEGER                    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;


typedef struct acpi_object_string   /* Null terminated, ASCII characters only */
{
    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                           MethodFlags;
    UINT8                           ParamCount;
    UINT8                           SyncLevel;
    union acpi_operand_object       *Mutex;
    UINT8                           *AmlStart;
    ACPI_INTERNAL_METHOD            Implementation;
    UINT32                          AmlLength;
    UINT8                           ThreadCount;
    ACPI_OWNER_ID                   OwnerId;

} ACPI_OBJECT_METHOD;


/******************************************************************************
 *
 * 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       *SystemNotify;      /* Handler for system notifies */\