881 lines
26 KiB
C
881 lines
26 KiB
C
/******************************************************************************
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*
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* Module Name: uteval - Object evaluation
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* $Revision: 1.71 $
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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 - 2007, 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 __UTEVAL_C__
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#include <contrib/dev/acpica/acpi.h>
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#include <contrib/dev/acpica/acnamesp.h>
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#include <contrib/dev/acpica/acinterp.h>
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME ("uteval")
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/* Local prototypes */
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static void
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AcpiUtCopyIdString (
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char *Destination,
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char *Source,
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ACPI_SIZE MaxLength);
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static ACPI_STATUS
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AcpiUtTranslateOneCid (
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_COMPATIBLE_ID *OneCid);
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/*
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* Strings supported by the _OSI predefined (internal) method.
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*/
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static const char *AcpiInterfacesSupported[] =
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{
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/* Operating System Vendor Strings */
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"Linux",
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"Windows 2000",
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"Windows 2001",
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"Windows 2001 SP0",
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"Windows 2001 SP1",
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"Windows 2001 SP2",
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"Windows 2001 SP3",
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"Windows 2001 SP4",
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"Windows 2001.1",
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"Windows 2001.1 SP1", /* Added 03/2006 */
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"Windows 2006", /* Added 03/2006 */
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/* Feature Group Strings */
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"Extended Address Space Descriptor"
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/*
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* All "optional" feature group strings (features that are implemented
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* by the host) should be implemented in the host version of
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* AcpiOsValidateInterface and should not be added here.
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*/
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};
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtOsiImplementation
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*
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* PARAMETERS: WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Implementation of the _OSI predefined control method
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtOsiImplementation (
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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 *StringDesc;
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ACPI_OPERAND_OBJECT *ReturnDesc;
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ACPI_NATIVE_UINT i;
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ACPI_FUNCTION_TRACE (UtOsiImplementation);
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/* Validate the string input argument */
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StringDesc = WalkState->Arguments[0].Object;
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if (!StringDesc || (StringDesc->Common.Type != ACPI_TYPE_STRING))
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{
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return_ACPI_STATUS (AE_TYPE);
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}
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/* Create a return object */
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ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!ReturnDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Default return value is SUPPORTED */
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ReturnDesc->Integer.Value = ACPI_UINT32_MAX;
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WalkState->ReturnDesc = ReturnDesc;
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/* Compare input string to static table of supported interfaces */
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for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiInterfacesSupported); i++)
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{
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if (!ACPI_STRCMP (StringDesc->String.Pointer, AcpiInterfacesSupported[i]))
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{
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/* The interface is supported */
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return_ACPI_STATUS (AE_CTRL_TERMINATE);
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}
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}
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/*
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* Did not match the string in the static table, call the host OSL to
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* check for a match with one of the optional strings (such as
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* "Module Device", "3.0 Thermal Model", etc.)
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*/
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Status = AcpiOsValidateInterface (StringDesc->String.Pointer);
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if (ACPI_SUCCESS (Status))
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{
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/* The interface is supported */
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return_ACPI_STATUS (AE_CTRL_TERMINATE);
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}
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/* The interface is not supported */
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ReturnDesc->Integer.Value = 0;
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return_ACPI_STATUS (AE_CTRL_TERMINATE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtEvaluateObject
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*
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* PARAMETERS: PrefixNode - Starting node
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* Path - Path to object from starting node
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* ExpectedReturnTypes - Bitmap of allowed return types
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* ReturnDesc - Where a return value is stored
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*
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* RETURN: Status
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*
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* DESCRIPTION: Evaluates a namespace object and verifies the type of the
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* return object. Common code that simplifies accessing objects
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* that have required return objects of fixed types.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtEvaluateObject (
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ACPI_NAMESPACE_NODE *PrefixNode,
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char *Path,
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UINT32 ExpectedReturnBtypes,
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ACPI_OPERAND_OBJECT **ReturnDesc)
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{
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ACPI_EVALUATE_INFO *Info;
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ACPI_STATUS Status;
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UINT32 ReturnBtype;
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ACPI_FUNCTION_TRACE (UtEvaluateObject);
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/* Allocate the evaluation information block */
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Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
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if (!Info)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Info->PrefixNode = PrefixNode;
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Info->Pathname = Path;
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Info->ParameterType = ACPI_PARAM_ARGS;
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/* Evaluate the object/method */
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Status = AcpiNsEvaluate (Info);
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if (ACPI_FAILURE (Status))
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{
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if (Status == AE_NOT_FOUND)
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s.%s] was not found\n",
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AcpiUtGetNodeName (PrefixNode), Path));
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}
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else
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{
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ACPI_ERROR_METHOD ("Method execution failed",
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PrefixNode, Path, Status);
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}
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goto Cleanup;
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}
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/* Did we get a return object? */
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if (!Info->ReturnObject)
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{
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if (ExpectedReturnBtypes)
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{
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ACPI_ERROR_METHOD ("No object was returned from",
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PrefixNode, Path, AE_NOT_EXIST);
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Status = AE_NOT_EXIST;
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}
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goto Cleanup;
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}
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/* Map the return object type to the bitmapped type */
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switch (ACPI_GET_OBJECT_TYPE (Info->ReturnObject))
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{
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case ACPI_TYPE_INTEGER:
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ReturnBtype = ACPI_BTYPE_INTEGER;
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break;
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case ACPI_TYPE_BUFFER:
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ReturnBtype = ACPI_BTYPE_BUFFER;
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break;
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case ACPI_TYPE_STRING:
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ReturnBtype = ACPI_BTYPE_STRING;
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break;
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case ACPI_TYPE_PACKAGE:
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ReturnBtype = ACPI_BTYPE_PACKAGE;
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break;
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default:
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ReturnBtype = 0;
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break;
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}
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if ((AcpiGbl_EnableInterpreterSlack) &&
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(!ExpectedReturnBtypes))
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{
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/*
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* We received a return object, but one was not expected. This can
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* happen frequently if the "implicit return" feature is enabled.
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* Just delete the return object and return AE_OK.
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*/
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AcpiUtRemoveReference (Info->ReturnObject);
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goto Cleanup;
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}
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/* Is the return object one of the expected types? */
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if (!(ExpectedReturnBtypes & ReturnBtype))
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{
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ACPI_ERROR_METHOD ("Return object type is incorrect",
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PrefixNode, Path, AE_TYPE);
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ACPI_ERROR ((AE_INFO,
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"Type returned from %s was incorrect: %s, expected Btypes: %X",
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Path, AcpiUtGetObjectTypeName (Info->ReturnObject),
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ExpectedReturnBtypes));
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/* On error exit, we must delete the return object */
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AcpiUtRemoveReference (Info->ReturnObject);
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Status = AE_TYPE;
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goto Cleanup;
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}
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/* Object type is OK, return it */
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*ReturnDesc = Info->ReturnObject;
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Cleanup:
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ACPI_FREE (Info);
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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: AcpiUtEvaluateNumericObject
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*
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* PARAMETERS: ObjectName - Object name to be evaluated
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* DeviceNode - Node for the device
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* Address - Where the value is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Evaluates a numeric namespace object for a selected device
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* and stores result in *Address.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtEvaluateNumericObject (
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char *ObjectName,
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ACPI_NAMESPACE_NODE *DeviceNode,
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ACPI_INTEGER *Address)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE (UtEvaluateNumericObject);
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Status = AcpiUtEvaluateObject (DeviceNode, ObjectName,
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ACPI_BTYPE_INTEGER, &ObjDesc);
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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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/* Get the returned Integer */
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*Address = ObjDesc->Integer.Value;
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/* On exit, we must delete the return 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: AcpiUtCopyIdString
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*
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* PARAMETERS: Destination - Where to copy the string
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* Source - Source string
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* MaxLength - Length of the destination buffer
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*
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* RETURN: None
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*
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* DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
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* Performs removal of a leading asterisk if present -- workaround
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* for a known issue on a bunch of machines.
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*
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******************************************************************************/
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static void
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AcpiUtCopyIdString (
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char *Destination,
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char *Source,
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ACPI_SIZE MaxLength)
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{
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/*
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* Workaround for ID strings that have a leading asterisk. This construct
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* is not allowed by the ACPI specification (ID strings must be
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* alphanumeric), but enough existing machines have this embedded in their
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* ID strings that the following code is useful.
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*/
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if (*Source == '*')
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{
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Source++;
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}
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/* Do the actual copy */
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ACPI_STRNCPY (Destination, Source, MaxLength);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtExecute_HID
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*
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* PARAMETERS: DeviceNode - Node for the device
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* Hid - Where the HID is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Executes the _HID control method that returns the hardware
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* ID of the device.
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*
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* NOTE: Internal function, no parameter validation
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtExecute_HID (
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ACPI_NAMESPACE_NODE *DeviceNode,
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ACPI_DEVICE_ID *Hid)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE (UtExecute_HID);
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Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__HID,
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ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &ObjDesc);
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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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if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
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{
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/* Convert the Numeric HID to string */
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AcpiExEisaIdToString ((UINT32) ObjDesc->Integer.Value, Hid->Value);
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}
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else
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{
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/* Copy the String HID from the returned object */
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AcpiUtCopyIdString (Hid->Value, ObjDesc->String.Pointer,
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sizeof (Hid->Value));
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}
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/* On exit, we must delete the return 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: AcpiUtTranslateOneCid
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*
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* PARAMETERS: ObjDesc - _CID object, must be integer or string
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* OneCid - Where the CID string is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Return a numeric or string _CID value as a string.
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* (Compatible ID)
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*
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* NOTE: Assumes a maximum _CID string length of
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* ACPI_MAX_CID_LENGTH.
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiUtTranslateOneCid (
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_COMPATIBLE_ID *OneCid)
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{
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|
|
|
switch (ACPI_GET_OBJECT_TYPE (ObjDesc))
|
|
{
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
/* Convert the Numeric CID to string */
|
|
|
|
AcpiExEisaIdToString ((UINT32) ObjDesc->Integer.Value, OneCid->Value);
|
|
return (AE_OK);
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
if (ObjDesc->String.Length > ACPI_MAX_CID_LENGTH)
|
|
{
|
|
return (AE_AML_STRING_LIMIT);
|
|
}
|
|
|
|
/* Copy the String CID from the returned object */
|
|
|
|
AcpiUtCopyIdString (OneCid->Value, ObjDesc->String.Pointer,
|
|
ACPI_MAX_CID_LENGTH);
|
|
return (AE_OK);
|
|
|
|
default:
|
|
|
|
return (AE_TYPE);
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecute_CID
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* ReturnCidList - Where the CID list is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Executes the _CID control method that returns one or more
|
|
* compatible hardware IDs for the device.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecute_CID (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
ACPI_COMPATIBLE_ID_LIST **ReturnCidList)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
UINT32 Count;
|
|
UINT32 Size;
|
|
ACPI_COMPATIBLE_ID_LIST *CidList;
|
|
ACPI_NATIVE_UINT i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecute_CID);
|
|
|
|
|
|
/* Evaluate the _CID method for this device */
|
|
|
|
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__CID,
|
|
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_PACKAGE,
|
|
&ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Get the number of _CIDs returned */
|
|
|
|
Count = 1;
|
|
if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_PACKAGE)
|
|
{
|
|
Count = ObjDesc->Package.Count;
|
|
}
|
|
|
|
/* Allocate a worst-case buffer for the _CIDs */
|
|
|
|
Size = (((Count - 1) * sizeof (ACPI_COMPATIBLE_ID)) +
|
|
sizeof (ACPI_COMPATIBLE_ID_LIST));
|
|
|
|
CidList = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) Size);
|
|
if (!CidList)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Init CID list */
|
|
|
|
CidList->Count = Count;
|
|
CidList->Size = Size;
|
|
|
|
/*
|
|
* A _CID can return either a single compatible ID or a package of
|
|
* compatible IDs. Each compatible ID can be one of the following:
|
|
* 1) Integer (32 bit compressed EISA ID) or
|
|
* 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
|
|
*/
|
|
|
|
/* The _CID object can be either a single CID or a package (list) of CIDs */
|
|
|
|
if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_PACKAGE)
|
|
{
|
|
/* Translate each package element */
|
|
|
|
for (i = 0; i < Count; i++)
|
|
{
|
|
Status = AcpiUtTranslateOneCid (ObjDesc->Package.Elements[i],
|
|
&CidList->Id[i]);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Only one CID, translate to a string */
|
|
|
|
Status = AcpiUtTranslateOneCid (ObjDesc, CidList->Id);
|
|
}
|
|
|
|
/* Cleanup on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_FREE (CidList);
|
|
}
|
|
else
|
|
{
|
|
*ReturnCidList = CidList;
|
|
}
|
|
|
|
/* On exit, we must delete the _CID return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecute_UID
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* Uid - Where the UID is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Executes the _UID control method that returns the hardware
|
|
* ID of the device.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecute_UID (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
ACPI_DEVICE_ID *Uid)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecute_UID);
|
|
|
|
|
|
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__UID,
|
|
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_INTEGER)
|
|
{
|
|
/* Convert the Numeric UID to string */
|
|
|
|
AcpiExUnsignedIntegerToString (ObjDesc->Integer.Value, Uid->Value);
|
|
}
|
|
else
|
|
{
|
|
/* Copy the String UID from the returned object */
|
|
|
|
AcpiUtCopyIdString (Uid->Value, ObjDesc->String.Pointer,
|
|
sizeof (Uid->Value));
|
|
}
|
|
|
|
/* On exit, we must delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecute_STA
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* Flags - Where the status flags are returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Executes _STA for selected device and stores results in
|
|
* *Flags.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecute_STA (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
UINT32 *Flags)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecute_STA);
|
|
|
|
|
|
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__STA,
|
|
ACPI_BTYPE_INTEGER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (AE_NOT_FOUND == Status)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"_STA on %4.4s was not found, assuming device is present\n",
|
|
AcpiUtGetNodeName (DeviceNode)));
|
|
|
|
*Flags = ACPI_UINT32_MAX;
|
|
Status = AE_OK;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Extract the status flags */
|
|
|
|
*Flags = (UINT32) ObjDesc->Integer.Value;
|
|
|
|
/* On exit, we must delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecute_Sxds
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* Flags - Where the status flags are returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Executes _STA for selected device and stores results in
|
|
* *Flags.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecute_Sxds (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
UINT8 *Highest)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecute_Sxds);
|
|
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
Highest[i] = 0xFF;
|
|
Status = AcpiUtEvaluateObject (DeviceNode,
|
|
ACPI_CAST_PTR (char, AcpiGbl_HighestDstateNames[i]),
|
|
ACPI_BTYPE_INTEGER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status != AE_NOT_FOUND)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"%s on Device %4.4s, %s\n",
|
|
ACPI_CAST_PTR (char, AcpiGbl_HighestDstateNames[i]),
|
|
AcpiUtGetNodeName (DeviceNode),
|
|
AcpiFormatException (Status)));
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Extract the Dstate value */
|
|
|
|
Highest[i] = (UINT8) ObjDesc->Integer.Value;
|
|
|
|
/* Delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|