0065eb1222
keeps changing, so to reduce repository thrash everything has been moved into a single directory. (repo copy involved)
518 lines
16 KiB
C
518 lines
16 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: nsobject - Utilities for objects attached to namespace
|
|
* table entries
|
|
* $Revision: 55 $
|
|
*
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999, 2000, 2001, 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.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
|
|
#define __NSOBJECT_C__
|
|
|
|
#include "acpi.h"
|
|
#include "amlcode.h"
|
|
#include "acnamesp.h"
|
|
#include "acinterp.h"
|
|
#include "actables.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_NAMESPACE
|
|
MODULE_NAME ("nsobject")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiNsAttachObject
|
|
*
|
|
* PARAMETERS: Node - Parent Node
|
|
* Object - Object to be attached
|
|
* Type - Type of object, or ACPI_TYPE_ANY if not
|
|
* known
|
|
*
|
|
* DESCRIPTION: Record the given object as the value associated with the
|
|
* name whose ACPI_HANDLE is passed. If Object is NULL
|
|
* and Type is ACPI_TYPE_ANY, set the name as having no value.
|
|
*
|
|
* MUTEX: Assumes namespace is locked
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiNsAttachObject (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_OPERAND_OBJECT *Object,
|
|
ACPI_OBJECT_TYPE8 Type)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *PreviousObjDesc;
|
|
ACPI_OBJECT_TYPE8 ObjType = ACPI_TYPE_ANY;
|
|
UINT8 Flags;
|
|
UINT16 Opcode;
|
|
|
|
|
|
FUNCTION_TRACE ("NsAttachObject");
|
|
|
|
|
|
/*
|
|
* Parameter validation
|
|
*/
|
|
|
|
if (!AcpiGbl_RootNode)
|
|
{
|
|
/* Name space not initialized */
|
|
|
|
REPORT_ERROR (("NsAttachObject: Namespace not initialized\n"));
|
|
return_ACPI_STATUS (AE_NO_NAMESPACE);
|
|
}
|
|
|
|
if (!Node)
|
|
{
|
|
/* Invalid handle */
|
|
|
|
REPORT_ERROR (("NsAttachObject: Null NamedObj handle\n"));
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
if (!Object && (ACPI_TYPE_ANY != Type))
|
|
{
|
|
/* Null object */
|
|
|
|
REPORT_ERROR (("NsAttachObject: Null object, but type not ACPI_TYPE_ANY\n"));
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
if (!VALID_DESCRIPTOR_TYPE (Node, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
/* Not a name handle */
|
|
|
|
REPORT_ERROR (("NsAttachObject: Invalid handle\n"));
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Check if this object is already attached */
|
|
|
|
if (Node->Object == Object)
|
|
{
|
|
DEBUG_PRINTP (TRACE_EXEC, ("Obj %p already installed in NameObj %p\n",
|
|
Object, Node));
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/* Get the current flags field of the Node */
|
|
|
|
Flags = Node->Flags;
|
|
Flags &= ~ANOBJ_AML_ATTACHMENT;
|
|
|
|
|
|
/* If null object, we will just install it */
|
|
|
|
if (!Object)
|
|
{
|
|
ObjDesc = NULL;
|
|
ObjType = ACPI_TYPE_ANY;
|
|
}
|
|
|
|
/*
|
|
* If the object is an Node with an attached object,
|
|
* we will use that (attached) object
|
|
*/
|
|
|
|
else if (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_NAMED) &&
|
|
((ACPI_NAMESPACE_NODE *) Object)->Object)
|
|
{
|
|
/*
|
|
* Value passed is a name handle and that name has a
|
|
* non-null value. Use that name's value and type.
|
|
*/
|
|
|
|
ObjDesc = ((ACPI_NAMESPACE_NODE *) Object)->Object;
|
|
ObjType = ((ACPI_NAMESPACE_NODE *) Object)->Type;
|
|
|
|
/*
|
|
* Copy appropriate flags
|
|
*/
|
|
|
|
if (((ACPI_NAMESPACE_NODE *) Object)->Flags & ANOBJ_AML_ATTACHMENT)
|
|
{
|
|
Flags |= ANOBJ_AML_ATTACHMENT;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Otherwise, we will use the parameter object, but we must type
|
|
* it first
|
|
*/
|
|
|
|
else
|
|
{
|
|
ObjDesc = (ACPI_OPERAND_OBJECT *) Object;
|
|
|
|
|
|
/* If a valid type (non-ANY) was given, just use it */
|
|
|
|
if (ACPI_TYPE_ANY != Type)
|
|
{
|
|
ObjType = Type;
|
|
}
|
|
|
|
|
|
/*
|
|
* Type is TYPE_Any, we must try to determinte the
|
|
* actual type of the object
|
|
*/
|
|
|
|
/*
|
|
* Check if value points into the AML code
|
|
*/
|
|
else if (AcpiTbSystemTablePointer (Object))
|
|
{
|
|
/*
|
|
* Object points into the AML stream.
|
|
* Set a flag bit in the Node to indicate this
|
|
*/
|
|
|
|
Flags |= ANOBJ_AML_ATTACHMENT;
|
|
|
|
/*
|
|
* The next byte (perhaps the next two bytes)
|
|
* will be the AML opcode
|
|
*/
|
|
|
|
MOVE_UNALIGNED16_TO_16 (&Opcode, Object);
|
|
|
|
/* Check for a recognized Opcode */
|
|
|
|
switch ((UINT8) Opcode)
|
|
{
|
|
|
|
case AML_OP_PREFIX:
|
|
|
|
if (Opcode != AML_REVISION_OP)
|
|
{
|
|
/*
|
|
* OpPrefix is unrecognized unless part
|
|
* of RevisionOp
|
|
*/
|
|
|
|
break;
|
|
}
|
|
|
|
/* Else fall through to set type as Number */
|
|
|
|
|
|
case AML_ZERO_OP: case AML_ONES_OP: case AML_ONE_OP:
|
|
case AML_BYTE_OP: case AML_WORD_OP: case AML_DWORD_OP:
|
|
|
|
ObjType = ACPI_TYPE_INTEGER;
|
|
break;
|
|
|
|
|
|
case AML_STRING_OP:
|
|
|
|
ObjType = ACPI_TYPE_STRING;
|
|
break;
|
|
|
|
|
|
case AML_BUFFER_OP:
|
|
|
|
ObjType = ACPI_TYPE_BUFFER;
|
|
break;
|
|
|
|
|
|
case AML_MUTEX_OP:
|
|
|
|
ObjType = ACPI_TYPE_MUTEX;
|
|
break;
|
|
|
|
|
|
case AML_PACKAGE_OP:
|
|
|
|
ObjType = ACPI_TYPE_PACKAGE;
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
DEBUG_PRINTP (ACPI_ERROR,
|
|
("AML Opcode/Type [%x] not supported in attach\n",
|
|
(UINT8) Opcode));
|
|
|
|
return_ACPI_STATUS (AE_TYPE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* Cannot figure out the type -- set to DefAny which
|
|
* will print as an error in the name table dump
|
|
*/
|
|
|
|
if (GetDebugLevel () > 0)
|
|
{
|
|
DUMP_PATHNAME (Node,
|
|
"NsAttachObject confused: setting bogus type for ",
|
|
ACPI_INFO, _COMPONENT);
|
|
|
|
if (AcpiTbSystemTablePointer (Object))
|
|
{
|
|
DEBUG_PRINTP (ACPI_INFO,
|
|
("AML-stream code %02x\n", *(UINT8 *) Object));
|
|
}
|
|
|
|
else if (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
DUMP_PATHNAME (Object, "name ", ACPI_INFO, _COMPONENT);
|
|
}
|
|
|
|
else
|
|
{
|
|
DUMP_PATHNAME (Object, "object ", ACPI_INFO, _COMPONENT);
|
|
DUMP_STACK_ENTRY (Object);
|
|
}
|
|
}
|
|
|
|
ObjType = INTERNAL_TYPE_DEF_ANY;
|
|
}
|
|
}
|
|
|
|
|
|
DEBUG_PRINTP (TRACE_EXEC, ("Installing obj %p into NameObj %p [%4.4s]\n",
|
|
ObjDesc, Node, &Node->Name));
|
|
|
|
|
|
/*
|
|
* Must increment the new value's reference count
|
|
* (if it is an internal object)
|
|
*/
|
|
|
|
AcpiUtAddReference (ObjDesc);
|
|
|
|
/* Save the existing object (if any) for deletion later */
|
|
|
|
PreviousObjDesc = Node->Object;
|
|
|
|
/* Install the object and set the type, flags */
|
|
|
|
Node->Object = ObjDesc;
|
|
Node->Type = (UINT8) ObjType;
|
|
Node->Flags |= Flags;
|
|
|
|
|
|
/*
|
|
* Delete an existing attached object.
|
|
*/
|
|
|
|
if (PreviousObjDesc)
|
|
{
|
|
/* One for the attach to the Node */
|
|
|
|
AcpiUtRemoveReference (PreviousObjDesc);
|
|
|
|
/* Now delete */
|
|
|
|
AcpiUtRemoveReference (PreviousObjDesc);
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiNsDetachObject
|
|
*
|
|
* PARAMETERS: Node - An object whose Value will be deleted
|
|
*
|
|
* RETURN: None.
|
|
*
|
|
* DESCRIPTION: Delete the Value associated with a namespace object. If the
|
|
* Value is an allocated object, it is freed. Otherwise, the
|
|
* field is simply cleared.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiNsDetachObject (
|
|
ACPI_NAMESPACE_NODE *Node)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
|
|
|
|
FUNCTION_TRACE ("NsDetachObject");
|
|
|
|
ObjDesc = Node->Object;
|
|
if (!ObjDesc)
|
|
{
|
|
return_VOID;
|
|
}
|
|
|
|
/* Clear the entry in all cases */
|
|
|
|
Node->Object = NULL;
|
|
|
|
/* Found a valid value */
|
|
|
|
DEBUG_PRINTP (ACPI_INFO, ("Object=%p Value=%p Name %4.4s\n",
|
|
Node, ObjDesc, &Node->Name));
|
|
|
|
/*
|
|
* Not every value is an object allocated via AcpiUtCallocate,
|
|
* - must check
|
|
*/
|
|
|
|
if (!AcpiTbSystemTablePointer (ObjDesc))
|
|
{
|
|
/* Attempt to delete the object (and all subobjects) */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
}
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiNsGetAttachedObject
|
|
*
|
|
* PARAMETERS: Node - Parent Node to be examined
|
|
*
|
|
* RETURN: Current value of the object field from the Node whose
|
|
* handle is passed
|
|
*
|
|
******************************************************************************/
|
|
|
|
void *
|
|
AcpiNsGetAttachedObject (
|
|
ACPI_NAMESPACE_NODE *Node)
|
|
{
|
|
FUNCTION_TRACE_PTR ("NsGetAttachedObject", Node);
|
|
|
|
|
|
if (!Node)
|
|
{
|
|
/* handle invalid */
|
|
|
|
DEBUG_PRINTP (ACPI_WARN, ("Null Node ptr\n"));
|
|
return_PTR (NULL);
|
|
}
|
|
|
|
return_PTR (Node->Object);
|
|
}
|
|
|
|
|