725 lines
22 KiB
C
725 lines
22 KiB
C
/******************************************************************************
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*
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* Module Name: excreate - Named object creation
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* $Revision: 101 $
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __EXCREATE_C__
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#include "acpi.h"
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#include "acinterp.h"
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#include "amlcode.h"
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#include "acnamesp.h"
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#include "acevents.h"
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#include "actables.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME ("excreate")
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#ifndef ACPI_NO_METHOD_EXECUTION
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateAlias
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*
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* PARAMETERS: WalkState - Current state, contains operands
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new named alias
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateAlias (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_NAMESPACE_NODE *TargetNode;
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ACPI_NAMESPACE_NODE *AliasNode;
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE ("ExCreateAlias");
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/* Get the source/alias operands (both namespace nodes) */
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AliasNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
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TargetNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1];
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if (TargetNode->Type == ACPI_TYPE_LOCAL_ALIAS)
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{
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/*
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* Dereference an existing alias so that we don't create a chain
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* of aliases. With this code, we guarantee that an alias is
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* always exactly one level of indirection away from the
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* actual aliased name.
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*/
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TargetNode = (ACPI_NAMESPACE_NODE *) TargetNode->Object;
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}
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/*
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* For objects that can never change (i.e., the NS node will
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* permanently point to the same object), we can simply attach
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* the object to the new NS node. For other objects (such as
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* Integers, buffers, etc.), we have to point the Alias node
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* to the original Node.
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*/
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switch (TargetNode->Type)
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{
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case ACPI_TYPE_INTEGER:
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case ACPI_TYPE_STRING:
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case ACPI_TYPE_BUFFER:
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case ACPI_TYPE_PACKAGE:
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case ACPI_TYPE_BUFFER_FIELD:
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/*
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* The new alias has the type ALIAS and points to the original
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* NS node, not the object itself. This is because for these
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* types, the object can change dynamically via a Store.
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*/
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AliasNode->Type = ACPI_TYPE_LOCAL_ALIAS;
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AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
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break;
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default:
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/* Attach the original source object to the new Alias Node */
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/*
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* The new alias assumes the type of the target, and it points
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* to the same object. The reference count of the object has an
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* additional reference to prevent deletion out from under either the
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* target node or the alias Node
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*/
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Status = AcpiNsAttachObject (AliasNode,
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AcpiNsGetAttachedObject (TargetNode),
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TargetNode->Type);
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break;
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}
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/* Since both operands are Nodes, we don't need to delete them */
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return_ACPI_STATUS (Status);
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}
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateEvent
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*
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* PARAMETERS: WalkState - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new event object
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateEvent (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_FUNCTION_TRACE ("ExCreateEvent");
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ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT);
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if (!ObjDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/*
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* Create the actual OS semaphore, with zero initial units -- meaning
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* that the event is created in an unsignalled state
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*/
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Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
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&ObjDesc->Event.Semaphore);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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/* Attach object to the Node */
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Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
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ObjDesc, ACPI_TYPE_EVENT);
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Cleanup:
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/*
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* Remove local reference to the object (on error, will cause deletion
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* of both object and semaphore if present.)
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*/
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateMutex
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*
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* PARAMETERS: WalkState - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new mutex object
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*
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* Mutex (Name[0], SyncLevel[1])
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateMutex (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_FUNCTION_TRACE_PTR ("ExCreateMutex", ACPI_WALK_OPERANDS);
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/* Create the new mutex object */
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ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
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if (!ObjDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/*
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* Create the actual OS semaphore.
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* One unit max to make it a mutex, with one initial unit to allow
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* the mutex to be acquired.
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*/
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Status = AcpiOsCreateSemaphore (1, 1, &ObjDesc->Mutex.Semaphore);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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/* Init object and attach to NS node */
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ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value;
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ObjDesc->Mutex.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
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Status = AcpiNsAttachObject (ObjDesc->Mutex.Node,
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ObjDesc, ACPI_TYPE_MUTEX);
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Cleanup:
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/*
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* Remove local reference to the object (on error, will cause deletion
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* of both object and semaphore if present.)
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*/
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateRegion
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*
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* PARAMETERS: AmlStart - Pointer to the region declaration AML
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* AmlLength - Max length of the declaration AML
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* Operands - List of operands for the opcode
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* WalkState - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new operation region object
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateRegion (
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UINT8 *AmlStart,
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UINT32 AmlLength,
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UINT8 RegionSpace,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_OPERAND_OBJECT *RegionObj2;
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ACPI_FUNCTION_TRACE ("ExCreateRegion");
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/* Get the Namespace Node */
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Node = WalkState->Op->Common.Node;
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/*
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* If the region object is already attached to this node,
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* just return
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*/
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if (AcpiNsGetAttachedObject (Node))
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{
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return_ACPI_STATUS (AE_OK);
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}
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/*
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* Space ID must be one of the predefined IDs, or in the user-defined
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* range
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*/
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if ((RegionSpace >= ACPI_NUM_PREDEFINED_REGIONS) &&
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(RegionSpace < ACPI_USER_REGION_BEGIN))
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{
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ACPI_REPORT_ERROR (("Invalid AddressSpace type %X\n", RegionSpace));
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return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID);
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
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AcpiUtGetRegionName (RegionSpace), RegionSpace));
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/* Create the region descriptor */
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ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
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if (!ObjDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/*
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* Remember location in AML stream of address & length
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* operands since they need to be evaluated at run time.
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*/
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RegionObj2 = ObjDesc->Common.NextObject;
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RegionObj2->Extra.AmlStart = AmlStart;
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RegionObj2->Extra.AmlLength = AmlLength;
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/* Init the region from the operands */
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ObjDesc->Region.SpaceId = RegionSpace;
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ObjDesc->Region.Address = 0;
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ObjDesc->Region.Length = 0;
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ObjDesc->Region.Node = Node;
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/* Install the new region object in the parent Node */
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Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
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Cleanup:
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/* Remove local reference to the object */
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateTableRegion
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*
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* PARAMETERS: WalkState - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new DataTableRegion object
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateTableRegion (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_TABLE_HEADER *Table;
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ACPI_OPERAND_OBJECT *RegionObj2;
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ACPI_FUNCTION_TRACE ("ExCreateTableRegion");
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/* Get the Node from the object stack */
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Node = WalkState->Op->Common.Node;
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/*
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* If the region object is already attached to this node,
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* just return
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*/
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if (AcpiNsGetAttachedObject (Node))
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Find the ACPI table */
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Status = AcpiTbFindTable (Operand[1]->String.Pointer,
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Operand[2]->String.Pointer,
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Operand[3]->String.Pointer, &Table);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/* Create the region descriptor */
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ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
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if (!ObjDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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RegionObj2 = ObjDesc->Common.NextObject;
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RegionObj2->Extra.RegionContext = NULL;
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/* Init the region from the operands */
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ObjDesc->Region.SpaceId = REGION_DATA_TABLE;
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ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
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ObjDesc->Region.Length = Table->Length;
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ObjDesc->Region.Node = Node;
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ObjDesc->Region.Flags = AOPOBJ_DATA_VALID;
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/* Install the new region object in the parent Node */
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Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
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if (ACPI_FAILURE (Status))
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{
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if (Status == AE_NOT_EXIST)
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{
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Status = AE_OK;
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}
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else
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{
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goto Cleanup;
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}
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}
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ObjDesc->Region.Flags |= AOPOBJ_SETUP_COMPLETE;
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Cleanup:
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/* Remove local reference to the object */
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*****************************************************************************
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*
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* FUNCTION: AcpiExCreateProcessor
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*
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* PARAMETERS: WalkState - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create a new processor object and populate the fields
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*
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* Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiExCreateProcessor (
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ACPI_WALK_STATE *WalkState)
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{
|
|
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("ExCreateProcessor", WalkState);
|
|
|
|
|
|
/* Create the processor object */
|
|
|
|
ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/*
|
|
* Initialize the processor object from the operands
|
|
*/
|
|
ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value;
|
|
ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value;
|
|
ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value;
|
|
|
|
/* Install the processor object in the parent Node */
|
|
|
|
Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
|
|
ObjDesc, ACPI_TYPE_PROCESSOR);
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* 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])
|
|
*
|
|
****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExCreatePowerResource (
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("ExCreatePowerResource", WalkState);
|
|
|
|
|
|
/* Create the power resource object */
|
|
|
|
ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Initialize the power object from the operands */
|
|
|
|
ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value;
|
|
ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value;
|
|
|
|
/* Install the power resource object in the parent Node */
|
|
|
|
Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
|
|
ObjDesc, ACPI_TYPE_POWER);
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
#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
|
|
*
|
|
****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExCreateMethod (
|
|
UINT8 *AmlStart,
|
|
UINT32 AmlLength,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
UINT8 MethodFlags;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("ExCreateMethod", WalkState);
|
|
|
|
|
|
/* Create a new method object */
|
|
|
|
ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Save the method's AML pointer and length */
|
|
|
|
ObjDesc->Method.AmlStart = AmlStart;
|
|
ObjDesc->Method.AmlLength = AmlLength;
|
|
|
|
/* disassemble the method flags */
|
|
|
|
MethodFlags = (UINT8) Operand[1]->Integer.Value;
|
|
|
|
ObjDesc->Method.MethodFlags = MethodFlags;
|
|
ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & METHOD_FLAGS_ARG_COUNT);
|
|
|
|
/*
|
|
* Get the concurrency count. If required, a semaphore will be
|
|
* created for this method when it is parsed.
|
|
*/
|
|
if (MethodFlags & METHOD_FLAGS_SERIALIZED)
|
|
{
|
|
/*
|
|
* ACPI 1.0: Concurrency = 1
|
|
* ACPI 2.0: Concurrency = (SyncLevel (in method declaration) + 1)
|
|
*/
|
|
ObjDesc->Method.Concurrency = (UINT8)
|
|
(((MethodFlags & METHOD_FLAGS_SYNCH_LEVEL) >> 4) + 1);
|
|
}
|
|
else
|
|
{
|
|
ObjDesc->Method.Concurrency = INFINITE_CONCURRENCY;
|
|
}
|
|
|
|
/* Attach the new object to the method Node */
|
|
|
|
Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
|
|
ObjDesc, ACPI_TYPE_METHOD);
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
|
|
/* Remove a reference to the operand */
|
|
|
|
AcpiUtRemoveReference (Operand[1]);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|