excreate.c revision 30082d0cc16bf5799269ca464a219de900f519cd
/******************************************************************************
*
* Module Name: excreate - Named object creation
* $Revision: 1.108 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2006, 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
* 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
* 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
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* 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 __EXCREATE_C__
#include "acpi.h"
#include "acinterp.h"
#include "amlcode.h"
#include "acnamesp.h"
#include "acevents.h"
#include "actables.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("excreate")
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: AcpiExCreateAlias
*
* PARAMETERS: WalkState - Current state, contains operands
*
* RETURN: Status
*
* DESCRIPTION: Create a new named alias
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE ("ExCreateAlias");
{
/*
* Dereference an existing alias so that we don't create a chain
* of aliases. With this code, we guarantee that an alias is
* always exactly one level of indirection away from the
* actual aliased name.
*/
}
/*
* For objects that can never change (i.e., the NS node will
* permanently point to the same object), we can simply attach
* the object to the new NS node. For other objects (such as
* Integers, buffers, etc.), we have to point the Alias node
* to the original Node.
*/
switch (TargetNode->Type)
{
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_PACKAGE:
case ACPI_TYPE_BUFFER_FIELD:
/*
* The new alias has the type ALIAS and points to the original
* NS node, not the object itself. This is because for these
* types, the object can change dynamically via a Store.
*/
break;
case ACPI_TYPE_METHOD:
/*
* The new alias has the type ALIAS and points to the original
* NS node, not the object itself. This is because for these
* types, the object can change dynamically via a Store.
*/
break;
default:
/* Attach the original source object to the new Alias Node */
/*
* The new alias assumes the type of the target, and it points
* to the same object. The reference count of the object has an
* additional reference to prevent deletion out from under either the
* target node or the alias Node
*/
break;
}
/* Since both operands are Nodes, we don't need to delete them */
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreateEvent
*
* PARAMETERS: WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new event object
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE ("ExCreateEvent");
if (!ObjDesc)
{
goto Cleanup;
}
/*
* Create the actual OS semaphore, with zero initial units -- meaning
* that the event is created in an unsignalled state
*/
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
/* Attach object to the Node */
/*
* Remove local reference to the object (on error, will cause deletion
* of both object and semaphore if present.)
*/
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreateMutex
*
* PARAMETERS: WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new mutex object
*
* Mutex (Name[0], SyncLevel[1])
*
******************************************************************************/
{
/* Create the new mutex object */
if (!ObjDesc)
{
goto Cleanup;
}
/*
* Create the actual OS semaphore.
* One unit max to make it a mutex, with one initial unit to allow
* the mutex to be acquired.
*/
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
/* Init object and attach to NS node */
/*
* Remove local reference to the object (on error, will cause deletion
* of both object and semaphore if present.)
*/
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreateRegion
*
* PARAMETERS: AmlStart - Pointer to the region declaration AML
* AmlLength - Max length of the declaration AML
* RegionSpace - SpaceID for the region
* WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new operation region object
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE ("ExCreateRegion");
/* Get the Namespace Node */
/*
* If the region object is already attached to this node,
* just return
*/
if (AcpiNsGetAttachedObject (Node))
{
}
/*
* Space ID must be one of the predefined IDs, or in the user-defined
* range
*/
if ((RegionSpace >= ACPI_NUM_PREDEFINED_REGIONS) &&
{
}
/* Create the region descriptor */
if (!ObjDesc)
{
goto Cleanup;
}
/*
* Remember location in AML stream of address & length
* operands since they need to be evaluated at run time.
*/
/* Init the region from the operands */
/* Install the new region object in the parent Node */
/* Remove local reference to the object */
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreateTableRegion
*
* PARAMETERS: WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new DataTableRegion object
*
******************************************************************************/
{
ACPI_FUNCTION_TRACE ("ExCreateTableRegion");
/* Get the Node from the object stack */
/*
* If the region object is already attached to this node,
* just return
*/
if (AcpiNsGetAttachedObject (Node))
{
}
/* Find the ACPI table */
if (ACPI_FAILURE (Status))
{
}
/* Create the region descriptor */
if (!ObjDesc)
{
}
/* Init the region from the operands */
/* Install the new region object in the parent Node */
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
if (ACPI_FAILURE (Status))
{
if (Status == AE_NOT_EXIST)
{
}
else
{
goto Cleanup;
}
}
/* Remove local reference to the object */
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreateProcessor
*
* PARAMETERS: WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new processor object and populate the fields
*
* Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
*
******************************************************************************/
{
/* Create the processor object */
if (!ObjDesc)
{
}
/* Initialize the processor object from the operands */
/* Install the processor object in the parent Node */
/* Remove local reference to the object */
}
/*******************************************************************************
*
* FUNCTION: AcpiExCreatePowerResource
*
* PARAMETERS: WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new PowerResource object and populate the fields
*
* PowerResource (Name[0], SystemLevel[1], ResourceOrder[2])
*
******************************************************************************/
{
/* Create the power resource object */
if (!ObjDesc)
{
}
/* Initialize the power object from the operands */
/* Install the power resource object in the parent Node */
/* Remove local reference to the object */
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiExCreateMethod
*
* PARAMETERS: AmlStart - First byte of the method's AML
* AmlLength - AML byte count for this method
* WalkState - Current state
*
* RETURN: Status
*
* DESCRIPTION: Create a new method object
*
******************************************************************************/
{
/* Create a new method object */
if (!ObjDesc)
{
}
/* Save the method's AML pointer and length */
/*
* Disassemble the method flags. Split off the Arg Count
* for efficiency
*/
/*
* Get the concurrency count. If required, a semaphore will be
* created for this method when it is parsed.
*/
{
}
else if (MethodFlags & AML_METHOD_SERIALIZED)
{
/*
* ACPI 1.0: Concurrency = 1
* ACPI 2.0: Concurrency = (SyncLevel (in method declaration) + 1)
*/
}
else
{
}
/* Attach the new object to the method Node */
/* Remove local reference to the object */
/* Remove a reference to the operand */
}