775 lines
23 KiB
C
775 lines
23 KiB
C
/******************************************************************************
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*
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* Module Name: nsxfname - Public interfaces to the ACPI subsystem
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* ACPI Namespace oriented interfaces
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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 - 2011, 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 __NSXFNAME_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acnamesp.h"
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#include "acparser.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_NAMESPACE
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ACPI_MODULE_NAME ("nsxfname")
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/* Local prototypes */
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static char *
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AcpiNsCopyDeviceId (
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ACPI_DEVICE_ID *Dest,
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ACPI_DEVICE_ID *Source,
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char *StringArea);
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/******************************************************************************
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*
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* FUNCTION: AcpiGetHandle
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*
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* PARAMETERS: Parent - Object to search under (search scope).
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* Pathname - Pointer to an asciiz string containing the
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* name
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* RetHandle - Where the return handle is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: This routine will search for a caller specified name in the
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* name space. The caller can restrict the search region by
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* specifying a non NULL parent. The parent value is itself a
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* namespace handle.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetHandle (
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ACPI_HANDLE Parent,
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ACPI_STRING Pathname,
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ACPI_HANDLE *RetHandle)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node = NULL;
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ACPI_NAMESPACE_NODE *PrefixNode = NULL;
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ACPI_FUNCTION_ENTRY ();
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/* Parameter Validation */
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if (!RetHandle || !Pathname)
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{
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return (AE_BAD_PARAMETER);
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}
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/* Convert a parent handle to a prefix node */
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if (Parent)
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{
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PrefixNode = AcpiNsValidateHandle (Parent);
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if (!PrefixNode)
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{
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return (AE_BAD_PARAMETER);
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}
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}
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/*
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* Valid cases are:
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* 1) Fully qualified pathname
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* 2) Parent + Relative pathname
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*
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* Error for <null Parent + relative path>
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*/
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if (AcpiNsValidRootPrefix (Pathname[0]))
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{
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/* Pathname is fully qualified (starts with '\') */
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/* Special case for root-only, since we can't search for it */
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if (!ACPI_STRCMP (Pathname, ACPI_NS_ROOT_PATH))
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{
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*RetHandle = ACPI_CAST_PTR (ACPI_HANDLE, AcpiGbl_RootNode);
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return (AE_OK);
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}
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}
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else if (!PrefixNode)
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{
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/* Relative path with null prefix is disallowed */
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return (AE_BAD_PARAMETER);
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}
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/* Find the Node and convert to a handle */
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Status = AcpiNsGetNode (PrefixNode, Pathname, ACPI_NS_NO_UPSEARCH, &Node);
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if (ACPI_SUCCESS (Status))
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{
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*RetHandle = ACPI_CAST_PTR (ACPI_HANDLE, Node);
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}
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return (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetHandle)
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/******************************************************************************
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*
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* FUNCTION: AcpiGetName
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*
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* PARAMETERS: Handle - Handle to be converted to a pathname
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* NameType - Full pathname or single segment
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* Buffer - Buffer for returned path
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*
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* RETURN: Pointer to a string containing the fully qualified Name.
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*
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* DESCRIPTION: This routine returns the fully qualified name associated with
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* the Handle parameter. This and the AcpiPathnameToHandle are
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* complementary functions.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetName (
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ACPI_HANDLE Handle,
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UINT32 NameType,
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ACPI_BUFFER *Buffer)
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{
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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/* Parameter validation */
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if (NameType > ACPI_NAME_TYPE_MAX)
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{
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return (AE_BAD_PARAMETER);
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}
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Status = AcpiUtValidateBuffer (Buffer);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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if (NameType == ACPI_FULL_PATHNAME)
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{
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/* Get the full pathname (From the namespace root) */
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Status = AcpiNsHandleToPathname (Handle, Buffer);
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return (Status);
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}
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/*
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* Wants the single segment ACPI name.
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* Validate handle and convert to a namespace Node
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*/
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Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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Node = AcpiNsValidateHandle (Handle);
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if (!Node)
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{
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Status = AE_BAD_PARAMETER;
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goto UnlockAndExit;
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}
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/* Validate/Allocate/Clear caller buffer */
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Status = AcpiUtInitializeBuffer (Buffer, ACPI_PATH_SEGMENT_LENGTH);
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if (ACPI_FAILURE (Status))
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{
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goto UnlockAndExit;
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}
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/* Just copy the ACPI name from the Node and zero terminate it */
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ACPI_STRNCPY (Buffer->Pointer, AcpiUtGetNodeName (Node),
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ACPI_NAME_SIZE);
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((char *) Buffer->Pointer) [ACPI_NAME_SIZE] = 0;
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Status = AE_OK;
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UnlockAndExit:
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(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
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return (Status);
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}
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ACPI_EXPORT_SYMBOL (AcpiGetName)
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/******************************************************************************
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*
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* FUNCTION: AcpiNsCopyDeviceId
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*
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* PARAMETERS: Dest - Pointer to the destination DEVICE_ID
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* Source - Pointer to the source DEVICE_ID
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* StringArea - Pointer to where to copy the dest string
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*
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* RETURN: Pointer to the next string area
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*
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* DESCRIPTION: Copy a single DEVICE_ID, including the string data.
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*
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******************************************************************************/
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static char *
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AcpiNsCopyDeviceId (
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ACPI_DEVICE_ID *Dest,
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ACPI_DEVICE_ID *Source,
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char *StringArea)
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{
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/* Create the destination DEVICE_ID */
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Dest->String = StringArea;
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Dest->Length = Source->Length;
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/* Copy actual string and return a pointer to the next string area */
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ACPI_MEMCPY (StringArea, Source->String, Source->Length);
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return (StringArea + Source->Length);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiGetObjectInfo
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*
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* PARAMETERS: Handle - Object Handle
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* ReturnBuffer - Where the info is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Returns information about an object as gleaned from the
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* namespace node and possibly by running several standard
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* control methods (Such as in the case of a device.)
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*
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* For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
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* _ADR, _SxW, and _SxD methods.
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*
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* Note: Allocates the return buffer, must be freed by the caller.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiGetObjectInfo (
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ACPI_HANDLE Handle,
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ACPI_DEVICE_INFO **ReturnBuffer)
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{
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ACPI_NAMESPACE_NODE *Node;
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ACPI_DEVICE_INFO *Info;
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ACPI_DEVICE_ID_LIST *CidList = NULL;
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ACPI_DEVICE_ID *Hid = NULL;
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ACPI_DEVICE_ID *Uid = NULL;
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char *NextIdString;
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ACPI_OBJECT_TYPE Type;
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ACPI_NAME Name;
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UINT8 ParamCount= 0;
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UINT8 Valid = 0;
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UINT32 InfoSize;
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UINT32 i;
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ACPI_STATUS Status;
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/* Parameter validation */
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if (!Handle || !ReturnBuffer)
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{
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return (AE_BAD_PARAMETER);
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}
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Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
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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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Node = AcpiNsValidateHandle (Handle);
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if (!Node)
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{
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(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
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return (AE_BAD_PARAMETER);
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}
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/* Get the namespace node data while the namespace is locked */
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InfoSize = sizeof (ACPI_DEVICE_INFO);
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Type = Node->Type;
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Name = Node->Name.Integer;
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if (Node->Type == ACPI_TYPE_METHOD)
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{
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ParamCount = Node->Object->Method.ParamCount;
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}
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Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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if ((Type == ACPI_TYPE_DEVICE) ||
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(Type == ACPI_TYPE_PROCESSOR))
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{
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/*
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* Get extra info for ACPI Device/Processor objects only:
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* Run the Device _HID, _UID, and _CID methods.
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*
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* Note: none of these methods are required, so they may or may
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* not be present for this device. The Info->Valid bitfield is used
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* to indicate which methods were found and run successfully.
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*/
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/* Execute the Device._HID method */
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Status = AcpiUtExecute_HID (Node, &Hid);
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if (ACPI_SUCCESS (Status))
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{
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InfoSize += Hid->Length;
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Valid |= ACPI_VALID_HID;
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}
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/* Execute the Device._UID method */
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Status = AcpiUtExecute_UID (Node, &Uid);
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if (ACPI_SUCCESS (Status))
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{
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InfoSize += Uid->Length;
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Valid |= ACPI_VALID_UID;
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}
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/* Execute the Device._CID method */
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Status = AcpiUtExecute_CID (Node, &CidList);
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if (ACPI_SUCCESS (Status))
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{
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/* Add size of CID strings and CID pointer array */
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InfoSize += (CidList->ListSize - sizeof (ACPI_DEVICE_ID_LIST));
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Valid |= ACPI_VALID_CID;
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}
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}
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/*
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* Now that we have the variable-length data, we can allocate the
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* return buffer
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*/
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Info = ACPI_ALLOCATE_ZEROED (InfoSize);
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if (!Info)
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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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/* Get the fixed-length data */
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if ((Type == ACPI_TYPE_DEVICE) ||
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(Type == ACPI_TYPE_PROCESSOR))
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{
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/*
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* Get extra info for ACPI Device/Processor objects only:
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* Run the _STA, _ADR and, SxW, and _SxD methods.
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*
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* Note: none of these methods are required, so they may or may
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* not be present for this device. The Info->Valid bitfield is used
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* to indicate which methods were found and run successfully.
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*/
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/* Execute the Device._STA method */
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Status = AcpiUtExecute_STA (Node, &Info->CurrentStatus);
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if (ACPI_SUCCESS (Status))
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{
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Valid |= ACPI_VALID_STA;
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}
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/* Execute the Device._ADR method */
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Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR, Node,
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&Info->Address);
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if (ACPI_SUCCESS (Status))
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{
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Valid |= ACPI_VALID_ADR;
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}
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/* Execute the Device._SxW methods */
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Status = AcpiUtExecutePowerMethods (Node,
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AcpiGbl_LowestDstateNames, ACPI_NUM_SxW_METHODS,
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Info->LowestDstates);
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if (ACPI_SUCCESS (Status))
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{
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Valid |= ACPI_VALID_SXWS;
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}
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/* Execute the Device._SxD methods */
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Status = AcpiUtExecutePowerMethods (Node,
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AcpiGbl_HighestDstateNames, ACPI_NUM_SxD_METHODS,
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Info->HighestDstates);
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if (ACPI_SUCCESS (Status))
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{
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Valid |= ACPI_VALID_SXDS;
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}
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}
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/*
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* Create a pointer to the string area of the return buffer.
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* Point to the end of the base ACPI_DEVICE_INFO structure.
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*/
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NextIdString = ACPI_CAST_PTR (char, Info->CompatibleIdList.Ids);
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if (CidList)
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{
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/* Point past the CID DEVICE_ID array */
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NextIdString += ((ACPI_SIZE) CidList->Count * sizeof (ACPI_DEVICE_ID));
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}
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/*
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* Copy the HID, UID, and CIDs to the return buffer. The variable-length
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* strings are copied to the reserved area at the end of the buffer.
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*
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* For HID and CID, check if the ID is a PCI Root Bridge.
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*/
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if (Hid)
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|
{
|
|
NextIdString = AcpiNsCopyDeviceId (&Info->HardwareId,
|
|
Hid, NextIdString);
|
|
|
|
if (AcpiUtIsPciRootBridge (Hid->String))
|
|
{
|
|
Info->Flags |= ACPI_PCI_ROOT_BRIDGE;
|
|
}
|
|
}
|
|
|
|
if (Uid)
|
|
{
|
|
NextIdString = AcpiNsCopyDeviceId (&Info->UniqueId,
|
|
Uid, NextIdString);
|
|
}
|
|
|
|
if (CidList)
|
|
{
|
|
Info->CompatibleIdList.Count = CidList->Count;
|
|
Info->CompatibleIdList.ListSize = CidList->ListSize;
|
|
|
|
/* Copy each CID */
|
|
|
|
for (i = 0; i < CidList->Count; i++)
|
|
{
|
|
NextIdString = AcpiNsCopyDeviceId (&Info->CompatibleIdList.Ids[i],
|
|
&CidList->Ids[i], NextIdString);
|
|
|
|
if (AcpiUtIsPciRootBridge (CidList->Ids[i].String))
|
|
{
|
|
Info->Flags |= ACPI_PCI_ROOT_BRIDGE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Copy the fixed-length data */
|
|
|
|
Info->InfoSize = InfoSize;
|
|
Info->Type = Type;
|
|
Info->Name = Name;
|
|
Info->ParamCount = ParamCount;
|
|
Info->Valid = Valid;
|
|
|
|
*ReturnBuffer = Info;
|
|
Status = AE_OK;
|
|
|
|
|
|
Cleanup:
|
|
if (Hid)
|
|
{
|
|
ACPI_FREE (Hid);
|
|
}
|
|
if (Uid)
|
|
{
|
|
ACPI_FREE (Uid);
|
|
}
|
|
if (CidList)
|
|
{
|
|
ACPI_FREE (CidList);
|
|
}
|
|
return (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiGetObjectInfo)
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiInstallMethod
|
|
*
|
|
* PARAMETERS: Buffer - An ACPI table containing one control method
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Install a control method into the namespace. If the method
|
|
* name already exists in the namespace, it is overwritten. The
|
|
* input buffer must contain a valid DSDT or SSDT containing a
|
|
* single control method.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiInstallMethod (
|
|
UINT8 *Buffer)
|
|
{
|
|
ACPI_TABLE_HEADER *Table = ACPI_CAST_PTR (ACPI_TABLE_HEADER, Buffer);
|
|
UINT8 *AmlBuffer;
|
|
UINT8 *AmlStart;
|
|
char *Path;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_OPERAND_OBJECT *MethodObj;
|
|
ACPI_PARSE_STATE ParserState;
|
|
UINT32 AmlLength;
|
|
UINT16 Opcode;
|
|
UINT8 MethodFlags;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
if (!Buffer)
|
|
{
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Table must be a DSDT or SSDT */
|
|
|
|
if (!ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT) &&
|
|
!ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_SSDT))
|
|
{
|
|
return (AE_BAD_HEADER);
|
|
}
|
|
|
|
/* First AML opcode in the table must be a control method */
|
|
|
|
ParserState.Aml = Buffer + sizeof (ACPI_TABLE_HEADER);
|
|
Opcode = AcpiPsPeekOpcode (&ParserState);
|
|
if (Opcode != AML_METHOD_OP)
|
|
{
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Extract method information from the raw AML */
|
|
|
|
ParserState.Aml += AcpiPsGetOpcodeSize (Opcode);
|
|
ParserState.PkgEnd = AcpiPsGetNextPackageEnd (&ParserState);
|
|
Path = AcpiPsGetNextNamestring (&ParserState);
|
|
MethodFlags = *ParserState.Aml++;
|
|
AmlStart = ParserState.Aml;
|
|
AmlLength = ACPI_PTR_DIFF (ParserState.PkgEnd, AmlStart);
|
|
|
|
/*
|
|
* Allocate resources up-front. We don't want to have to delete a new
|
|
* node from the namespace if we cannot allocate memory.
|
|
*/
|
|
AmlBuffer = ACPI_ALLOCATE (AmlLength);
|
|
if (!AmlBuffer)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
MethodObj = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
|
|
if (!MethodObj)
|
|
{
|
|
ACPI_FREE (AmlBuffer);
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Lock namespace for AcpiNsLookup, we may be creating a new node */
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
/* The lookup either returns an existing node or creates a new one */
|
|
|
|
Status = AcpiNsLookup (NULL, Path, ACPI_TYPE_METHOD, ACPI_IMODE_LOAD_PASS1,
|
|
ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND, NULL, &Node);
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
|
|
|
if (ACPI_FAILURE (Status)) /* NsLookup */
|
|
{
|
|
if (Status != AE_ALREADY_EXISTS)
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
/* Node existed previously, make sure it is a method node */
|
|
|
|
if (Node->Type != ACPI_TYPE_METHOD)
|
|
{
|
|
Status = AE_TYPE;
|
|
goto ErrorExit;
|
|
}
|
|
}
|
|
|
|
/* Copy the method AML to the local buffer */
|
|
|
|
ACPI_MEMCPY (AmlBuffer, AmlStart, AmlLength);
|
|
|
|
/* Initialize the method object with the new method's information */
|
|
|
|
MethodObj->Method.AmlStart = AmlBuffer;
|
|
MethodObj->Method.AmlLength = AmlLength;
|
|
|
|
MethodObj->Method.ParamCount = (UINT8)
|
|
(MethodFlags & AML_METHOD_ARG_COUNT);
|
|
|
|
if (MethodFlags & AML_METHOD_SERIALIZED)
|
|
{
|
|
MethodObj->Method.InfoFlags = ACPI_METHOD_SERIALIZED;
|
|
|
|
MethodObj->Method.SyncLevel = (UINT8)
|
|
((MethodFlags & AML_METHOD_SYNC_LEVEL) >> 4);
|
|
}
|
|
|
|
/*
|
|
* Now that it is complete, we can attach the new method object to
|
|
* the method Node (detaches/deletes any existing object)
|
|
*/
|
|
Status = AcpiNsAttachObject (Node, MethodObj, ACPI_TYPE_METHOD);
|
|
|
|
/*
|
|
* Flag indicates AML buffer is dynamic, must be deleted later.
|
|
* Must be set only after attach above.
|
|
*/
|
|
Node->Flags |= ANOBJ_ALLOCATED_BUFFER;
|
|
|
|
/* Remove local reference to the method object */
|
|
|
|
AcpiUtRemoveReference (MethodObj);
|
|
return (Status);
|
|
|
|
|
|
ErrorExit:
|
|
|
|
ACPI_FREE (AmlBuffer);
|
|
ACPI_FREE (MethodObj);
|
|
return (Status);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL (AcpiInstallMethod)
|