1237 lines
34 KiB
C
1237 lines
34 KiB
C
/*******************************************************************************
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*
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* Module Name: utmisc - common utility procedures
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* $Revision: 1.125 $
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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 - 2005, 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 __UTMISC_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/amlresrc.h>
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME ("utmisc")
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtAllocateOwnerId
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*
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* PARAMETERS: OwnerId - Where the new owner ID is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
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* track objects created by the table or method, to be deleted
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* when the method exits or the table is unloaded.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtAllocateOwnerId (
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ACPI_OWNER_ID *OwnerId)
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{
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ACPI_NATIVE_UINT i;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE ("UtAllocateOwnerId");
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/* Guard against multiple allocations of ID to the same location */
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if (*OwnerId)
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{
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ACPI_REPORT_ERROR (("Owner ID [%2.2X] already exists\n", *OwnerId));
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return_ACPI_STATUS (AE_ALREADY_EXISTS);
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}
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/* Mutex for the global ID mask */
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Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
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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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/* Find a free owner ID */
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for (i = 0; i < 32; i++)
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{
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if (!(AcpiGbl_OwnerIdMask & (1 << i)))
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_VALUES,
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"Current OwnerId mask: %8.8X New ID: %2.2X\n",
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AcpiGbl_OwnerIdMask, (unsigned int) (i + 1)));
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AcpiGbl_OwnerIdMask |= (1 << i);
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*OwnerId = (ACPI_OWNER_ID) (i + 1);
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goto Exit;
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}
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}
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/*
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* If we are here, all OwnerIds have been allocated. This probably should
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* not happen since the IDs are reused after deallocation. The IDs are
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* allocated upon table load (one per table) and method execution, and
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* they are released when a table is unloaded or a method completes
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* execution.
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*/
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*OwnerId = 0;
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Status = AE_OWNER_ID_LIMIT;
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ACPI_REPORT_ERROR ((
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"Could not allocate new OwnerId (32 max), AE_OWNER_ID_LIMIT\n"));
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Exit:
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(void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
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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: AcpiUtReleaseOwnerId
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*
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* PARAMETERS: OwnerIdPtr - Pointer to a previously allocated OwnerID
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*
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* RETURN: None. No error is returned because we are either exiting a
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* control method or unloading a table. Either way, we would
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* ignore any error anyway.
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*
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* DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 32
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*
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******************************************************************************/
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void
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AcpiUtReleaseOwnerId (
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ACPI_OWNER_ID *OwnerIdPtr)
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{
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ACPI_OWNER_ID OwnerId = *OwnerIdPtr;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_U32 ("UtReleaseOwnerId", OwnerId);
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/* Always clear the input OwnerId (zero is an invalid ID) */
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*OwnerIdPtr = 0;
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/* Zero is not a valid OwnerID */
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if ((OwnerId == 0) || (OwnerId > 32))
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{
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ACPI_REPORT_ERROR (("Invalid OwnerId: %2.2X\n", OwnerId));
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return_VOID;
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}
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/* Mutex for the global ID mask */
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Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
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if (ACPI_FAILURE (Status))
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{
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return_VOID;
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}
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/* Normalize the ID to zero */
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OwnerId--;
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/* Free the owner ID only if it is valid */
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if (AcpiGbl_OwnerIdMask & (1 << OwnerId))
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{
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AcpiGbl_OwnerIdMask ^= (1 << OwnerId);
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}
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(void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
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return_VOID;
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtStrupr (strupr)
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*
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* PARAMETERS: SrcString - The source string to convert
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*
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* RETURN: None
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*
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* DESCRIPTION: Convert string to uppercase
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*
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* NOTE: This is not a POSIX function, so it appears here, not in utclib.c
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*
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******************************************************************************/
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void
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AcpiUtStrupr (
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char *SrcString)
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{
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char *String;
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ACPI_FUNCTION_ENTRY ();
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if (!SrcString)
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{
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return;
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}
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/* Walk entire string, uppercasing the letters */
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for (String = SrcString; *String; String++)
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{
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*String = (char) ACPI_TOUPPER (*String);
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}
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return;
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtPrintString
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*
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* PARAMETERS: String - Null terminated ASCII string
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* MaxLength - Maximum output length
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
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* sequences.
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*
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******************************************************************************/
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void
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AcpiUtPrintString (
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char *String,
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UINT8 MaxLength)
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{
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UINT32 i;
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if (!String)
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{
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AcpiOsPrintf ("<\"NULL STRING PTR\">");
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return;
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}
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AcpiOsPrintf ("\"");
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for (i = 0; String[i] && (i < MaxLength); i++)
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{
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/* Escape sequences */
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switch (String[i])
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{
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case 0x07:
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AcpiOsPrintf ("\\a"); /* BELL */
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break;
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case 0x08:
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AcpiOsPrintf ("\\b"); /* BACKSPACE */
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break;
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case 0x0C:
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AcpiOsPrintf ("\\f"); /* FORMFEED */
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break;
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case 0x0A:
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AcpiOsPrintf ("\\n"); /* LINEFEED */
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break;
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case 0x0D:
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AcpiOsPrintf ("\\r"); /* CARRIAGE RETURN*/
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break;
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case 0x09:
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AcpiOsPrintf ("\\t"); /* HORIZONTAL TAB */
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break;
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case 0x0B:
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AcpiOsPrintf ("\\v"); /* VERTICAL TAB */
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break;
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case '\'': /* Single Quote */
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case '\"': /* Double Quote */
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case '\\': /* Backslash */
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AcpiOsPrintf ("\\%c", (int) String[i]);
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break;
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default:
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/* Check for printable character or hex escape */
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if (ACPI_IS_PRINT (String[i]))
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{
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/* This is a normal character */
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AcpiOsPrintf ("%c", (int) String[i]);
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}
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else
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{
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/* All others will be Hex escapes */
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AcpiOsPrintf ("\\x%2.2X", (INT32) String[i]);
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}
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break;
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}
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}
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AcpiOsPrintf ("\"");
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if (i == MaxLength && String[i])
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{
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AcpiOsPrintf ("...");
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtDwordByteSwap
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*
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* PARAMETERS: Value - Value to be converted
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*
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* RETURN: UINT32 integer with bytes swapped
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*
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* DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes)
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*
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******************************************************************************/
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UINT32
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AcpiUtDwordByteSwap (
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UINT32 Value)
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{
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union
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{
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UINT32 Value;
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UINT8 Bytes[4];
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} Out;
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union
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{
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UINT32 Value;
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UINT8 Bytes[4];
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} In;
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ACPI_FUNCTION_ENTRY ();
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In.Value = Value;
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Out.Bytes[0] = In.Bytes[3];
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Out.Bytes[1] = In.Bytes[2];
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Out.Bytes[2] = In.Bytes[1];
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Out.Bytes[3] = In.Bytes[0];
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return (Out.Value);
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}
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|
|
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtSetIntegerWidth
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*
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* PARAMETERS: Revision From DSDT header
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*
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* RETURN: None
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*
|
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* DESCRIPTION: Set the global integer bit width based upon the revision
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* of the DSDT. For Revision 1 and 0, Integers are 32 bits.
|
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* For Revision 2 and above, Integers are 64 bits. Yes, this
|
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* makes a difference.
|
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*
|
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******************************************************************************/
|
|
|
|
void
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AcpiUtSetIntegerWidth (
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UINT8 Revision)
|
|
{
|
|
|
|
if (Revision <= 1)
|
|
{
|
|
AcpiGbl_IntegerBitWidth = 32;
|
|
AcpiGbl_IntegerNybbleWidth = 8;
|
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AcpiGbl_IntegerByteWidth = 4;
|
|
}
|
|
else
|
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{
|
|
AcpiGbl_IntegerBitWidth = 64;
|
|
AcpiGbl_IntegerNybbleWidth = 16;
|
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AcpiGbl_IntegerByteWidth = 8;
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef ACPI_DEBUG_OUTPUT
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtDisplayInitPathname
|
|
*
|
|
* PARAMETERS: Type - Object type of the node
|
|
* ObjHandle - Handle whose pathname will be displayed
|
|
* Path - Additional path string to be appended.
|
|
* (NULL if no extra path)
|
|
*
|
|
* RETURN: ACPI_STATUS
|
|
*
|
|
* DESCRIPTION: Display full pathname of an object, DEBUG ONLY
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiUtDisplayInitPathname (
|
|
UINT8 Type,
|
|
ACPI_NAMESPACE_NODE *ObjHandle,
|
|
char *Path)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_BUFFER Buffer;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Only print the path if the appropriate debug level is enabled */
|
|
|
|
if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Get the full pathname to the node */
|
|
|
|
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
|
|
Status = AcpiNsHandleToPathname (ObjHandle, &Buffer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Print what we're doing */
|
|
|
|
switch (Type)
|
|
{
|
|
case ACPI_TYPE_METHOD:
|
|
AcpiOsPrintf ("Executing ");
|
|
break;
|
|
|
|
default:
|
|
AcpiOsPrintf ("Initializing ");
|
|
break;
|
|
}
|
|
|
|
/* Print the object type and pathname */
|
|
|
|
AcpiOsPrintf ("%-12s %s",
|
|
AcpiUtGetTypeName (Type), (char *) Buffer.Pointer);
|
|
|
|
/* Extra path is used to append names like _STA, _INI, etc. */
|
|
|
|
if (Path)
|
|
{
|
|
AcpiOsPrintf (".%s", Path);
|
|
}
|
|
AcpiOsPrintf ("\n");
|
|
|
|
ACPI_MEM_FREE (Buffer.Pointer);
|
|
}
|
|
#endif
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtValidAcpiName
|
|
*
|
|
* PARAMETERS: Name - The name to be examined
|
|
*
|
|
* RETURN: TRUE if the name is valid, FALSE otherwise
|
|
*
|
|
* DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
|
|
* 1) Upper case alpha
|
|
* 2) numeric
|
|
* 3) underscore
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiUtValidAcpiName (
|
|
UINT32 Name)
|
|
{
|
|
char *NamePtr = (char *) &Name;
|
|
char Character;
|
|
ACPI_NATIVE_UINT i;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
for (i = 0; i < ACPI_NAME_SIZE; i++)
|
|
{
|
|
Character = *NamePtr;
|
|
NamePtr++;
|
|
|
|
if (!((Character == '_') ||
|
|
(Character >= 'A' && Character <= 'Z') ||
|
|
(Character >= '0' && Character <= '9')))
|
|
{
|
|
return (FALSE);
|
|
}
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtValidAcpiCharacter
|
|
*
|
|
* PARAMETERS: Character - The character to be examined
|
|
*
|
|
* RETURN: 1 if Character may appear in a name, else 0
|
|
*
|
|
* DESCRIPTION: Check for a printable character
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiUtValidAcpiCharacter (
|
|
char Character)
|
|
{
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
return ((BOOLEAN) ((Character == '_') ||
|
|
(Character >= 'A' && Character <= 'Z') ||
|
|
(Character >= '0' && Character <= '9')));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtStrtoul64
|
|
*
|
|
* PARAMETERS: String - Null terminated string
|
|
* Base - Radix of the string: 10, 16, or ACPI_ANY_BASE
|
|
* RetInteger - Where the converted integer is returned
|
|
*
|
|
* RETURN: Status and Converted value
|
|
*
|
|
* DESCRIPTION: Convert a string into an unsigned value.
|
|
* NOTE: Does not support Octal strings, not needed.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtStrtoul64 (
|
|
char *String,
|
|
UINT32 Base,
|
|
ACPI_INTEGER *RetInteger)
|
|
{
|
|
UINT32 ThisDigit = 0;
|
|
ACPI_INTEGER ReturnValue = 0;
|
|
ACPI_INTEGER Quotient;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("UtStroul64");
|
|
|
|
|
|
if ((!String) || !(*String))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
switch (Base)
|
|
{
|
|
case ACPI_ANY_BASE:
|
|
case 10:
|
|
case 16:
|
|
break;
|
|
|
|
default:
|
|
/* Invalid Base */
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Skip over any white space in the buffer */
|
|
|
|
while (ACPI_IS_SPACE (*String) || *String == '\t')
|
|
{
|
|
String++;
|
|
}
|
|
|
|
/*
|
|
* If the input parameter Base is zero, then we need to
|
|
* determine if it is decimal or hexadecimal:
|
|
*/
|
|
if (Base == 0)
|
|
{
|
|
if ((*String == '0') &&
|
|
(ACPI_TOLOWER (*(String + 1)) == 'x'))
|
|
{
|
|
Base = 16;
|
|
String += 2;
|
|
}
|
|
else
|
|
{
|
|
Base = 10;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For hexadecimal base, skip over the leading
|
|
* 0 or 0x, if they are present.
|
|
*/
|
|
if ((Base == 16) &&
|
|
(*String == '0') &&
|
|
(ACPI_TOLOWER (*(String + 1)) == 'x'))
|
|
{
|
|
String += 2;
|
|
}
|
|
|
|
/* Any string left? */
|
|
|
|
if (!(*String))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
/* Main loop: convert the string to a 64-bit integer */
|
|
|
|
while (*String)
|
|
{
|
|
if (ACPI_IS_DIGIT (*String))
|
|
{
|
|
/* Convert ASCII 0-9 to Decimal value */
|
|
|
|
ThisDigit = ((UINT8) *String) - '0';
|
|
}
|
|
else
|
|
{
|
|
if (Base == 10)
|
|
{
|
|
/* Digit is out of range */
|
|
|
|
goto ErrorExit;
|
|
}
|
|
|
|
ThisDigit = (UINT8) ACPI_TOUPPER (*String);
|
|
if (ACPI_IS_XDIGIT ((char) ThisDigit))
|
|
{
|
|
/* Convert ASCII Hex char to value */
|
|
|
|
ThisDigit = ThisDigit - 'A' + 10;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* We allow non-hex chars, just stop now, same as end-of-string.
|
|
* See ACPI spec, string-to-integer conversion.
|
|
*/
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Divide the digit into the correct position */
|
|
|
|
(void) AcpiUtShortDivide ((ACPI_INTEGER_MAX - (ACPI_INTEGER) ThisDigit),
|
|
Base, &Quotient, NULL);
|
|
if (ReturnValue > Quotient)
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
ReturnValue *= Base;
|
|
ReturnValue += ThisDigit;
|
|
String++;
|
|
}
|
|
|
|
/* All done, normal exit */
|
|
|
|
*RetInteger = ReturnValue;
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
|
|
ErrorExit:
|
|
/* Base was set/validated above */
|
|
|
|
if (Base == 10)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_DECIMAL_CONSTANT);
|
|
}
|
|
else
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_HEX_CONSTANT);
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCreateUpdateStateAndPush
|
|
*
|
|
* PARAMETERS: Object - Object to be added to the new state
|
|
* Action - Increment/Decrement
|
|
* StateList - List the state will be added to
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new state and push it
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtCreateUpdateStateAndPush (
|
|
ACPI_OPERAND_OBJECT *Object,
|
|
UINT16 Action,
|
|
ACPI_GENERIC_STATE **StateList)
|
|
{
|
|
ACPI_GENERIC_STATE *State;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Ignore null objects; these are expected */
|
|
|
|
if (!Object)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
State = AcpiUtCreateUpdateState (Object, Action);
|
|
if (!State)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
AcpiUtPushGenericState (StateList, State);
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtWalkPackageTree
|
|
*
|
|
* PARAMETERS: SourceObject - The package to walk
|
|
* TargetObject - Target object (if package is being copied)
|
|
* WalkCallback - Called once for each package element
|
|
* Context - Passed to the callback function
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Walk through a package
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtWalkPackageTree (
|
|
ACPI_OPERAND_OBJECT *SourceObject,
|
|
void *TargetObject,
|
|
ACPI_PKG_CALLBACK WalkCallback,
|
|
void *Context)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_GENERIC_STATE *StateList = NULL;
|
|
ACPI_GENERIC_STATE *State;
|
|
UINT32 ThisIndex;
|
|
ACPI_OPERAND_OBJECT *ThisSourceObj;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("UtWalkPackageTree");
|
|
|
|
|
|
State = AcpiUtCreatePkgState (SourceObject, TargetObject, 0);
|
|
if (!State)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
while (State)
|
|
{
|
|
/* Get one element of the package */
|
|
|
|
ThisIndex = State->Pkg.Index;
|
|
ThisSourceObj = (ACPI_OPERAND_OBJECT *)
|
|
State->Pkg.SourceObject->Package.Elements[ThisIndex];
|
|
|
|
/*
|
|
* Check for:
|
|
* 1) An uninitialized package element. It is completely
|
|
* legal to declare a package and leave it uninitialized
|
|
* 2) Not an internal object - can be a namespace node instead
|
|
* 3) Any type other than a package. Packages are handled in else
|
|
* case below.
|
|
*/
|
|
if ((!ThisSourceObj) ||
|
|
(ACPI_GET_DESCRIPTOR_TYPE (ThisSourceObj) != ACPI_DESC_TYPE_OPERAND) ||
|
|
(ACPI_GET_OBJECT_TYPE (ThisSourceObj) != ACPI_TYPE_PACKAGE))
|
|
{
|
|
Status = WalkCallback (ACPI_COPY_TYPE_SIMPLE, ThisSourceObj,
|
|
State, Context);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
State->Pkg.Index++;
|
|
while (State->Pkg.Index >= State->Pkg.SourceObject->Package.Count)
|
|
{
|
|
/*
|
|
* We've handled all of the objects at this level, This means
|
|
* that we have just completed a package. That package may
|
|
* have contained one or more packages itself.
|
|
*
|
|
* Delete this state and pop the previous state (package).
|
|
*/
|
|
AcpiUtDeleteGenericState (State);
|
|
State = AcpiUtPopGenericState (&StateList);
|
|
|
|
/* Finished when there are no more states */
|
|
|
|
if (!State)
|
|
{
|
|
/*
|
|
* We have handled all of the objects in the top level
|
|
* package just add the length of the package objects
|
|
* and exit
|
|
*/
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Go back up a level and move the index past the just
|
|
* completed package object.
|
|
*/
|
|
State->Pkg.Index++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* This is a subobject of type package */
|
|
|
|
Status = WalkCallback (ACPI_COPY_TYPE_PACKAGE, ThisSourceObj,
|
|
State, Context);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Push the current state and create a new one
|
|
* The callback above returned a new target package object.
|
|
*/
|
|
AcpiUtPushGenericState (&StateList, State);
|
|
State = AcpiUtCreatePkgState (ThisSourceObj,
|
|
State->Pkg.ThisTargetObj, 0);
|
|
if (!State)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We should never get here */
|
|
|
|
return_ACPI_STATUS (AE_AML_INTERNAL);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGenerateChecksum
|
|
*
|
|
* PARAMETERS: Buffer - Buffer to be scanned
|
|
* Length - number of bytes to examine
|
|
*
|
|
* RETURN: The generated checksum
|
|
*
|
|
* DESCRIPTION: Generate a checksum on a raw buffer
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT8
|
|
AcpiUtGenerateChecksum (
|
|
UINT8 *Buffer,
|
|
UINT32 Length)
|
|
{
|
|
UINT32 i;
|
|
signed char Sum = 0;
|
|
|
|
|
|
for (i = 0; i < Length; i++)
|
|
{
|
|
Sum = (signed char) (Sum + Buffer[i]);
|
|
}
|
|
|
|
return ((UINT8) (0 - Sum));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceType
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: The Resource Type with no extraneous bits (except the
|
|
* Large/Small descriptor bit -- this is left alone)
|
|
*
|
|
* DESCRIPTION: Extract the Resource Type/Name from the first byte of
|
|
* a resource descriptor.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT8
|
|
AcpiUtGetResourceType (
|
|
void *Aml)
|
|
{
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* Byte 0 contains the descriptor name (Resource Type)
|
|
* Determine if this is a small or large resource
|
|
*/
|
|
if (*((UINT8 *) Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
/* Large Resource Type -- bits 6:0 contain the name */
|
|
|
|
return (*((UINT8 *) Aml));
|
|
}
|
|
else
|
|
{
|
|
/* Small Resource Type -- bits 6:3 contain the name */
|
|
|
|
return ((UINT8) (*((UINT8 *) Aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceLength
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: Byte Length
|
|
*
|
|
* DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
|
|
* definition, this does not include the size of the descriptor
|
|
* header or the length field itself.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT16
|
|
AcpiUtGetResourceLength (
|
|
void *Aml)
|
|
{
|
|
UINT16 ResourceLength;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* Byte 0 contains the descriptor name (Resource Type)
|
|
* Determine if this is a small or large resource
|
|
*/
|
|
if (*((UINT8 *) Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
/* Large Resource type -- bytes 1-2 contain the 16-bit length */
|
|
|
|
ACPI_MOVE_16_TO_16 (&ResourceLength, &((UINT8 *) Aml)[1]);
|
|
|
|
}
|
|
else
|
|
{
|
|
/* Small Resource type -- bits 2:0 of byte 0 contain the length */
|
|
|
|
ResourceLength = (UINT16) (*((UINT8 *) Aml) &
|
|
ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
|
|
}
|
|
|
|
return (ResourceLength);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetDescriptorLength
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: Byte length
|
|
*
|
|
* DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
|
|
* length of the descriptor header and the length field itself.
|
|
* Used to walk descriptor lists.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT32
|
|
AcpiUtGetDescriptorLength (
|
|
void *Aml)
|
|
{
|
|
UINT32 DescriptorLength;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* First get the Resource Length (Does not include header length) */
|
|
|
|
DescriptorLength = AcpiUtGetResourceLength (Aml);
|
|
|
|
/* Determine if this is a small or large resource */
|
|
|
|
if (*((UINT8 *) Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
DescriptorLength += sizeof (AML_RESOURCE_LARGE_HEADER);
|
|
}
|
|
else
|
|
{
|
|
DescriptorLength += sizeof (AML_RESOURCE_SMALL_HEADER);
|
|
}
|
|
|
|
return (DescriptorLength);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceEndTag
|
|
*
|
|
* PARAMETERS: ObjDesc - The resource template buffer object
|
|
*
|
|
* RETURN: Pointer to the end tag
|
|
*
|
|
* DESCRIPTION: Find the END_TAG resource descriptor in an AML resource template
|
|
*
|
|
******************************************************************************/
|
|
|
|
|
|
UINT8 *
|
|
AcpiUtGetResourceEndTag (
|
|
ACPI_OPERAND_OBJECT *ObjDesc)
|
|
{
|
|
UINT8 *Aml;
|
|
UINT8 *EndAml;
|
|
|
|
|
|
Aml = ObjDesc->Buffer.Pointer;
|
|
EndAml = Aml + ObjDesc->Buffer.Length;
|
|
|
|
/* Walk the resource template, one descriptor per loop */
|
|
|
|
while (Aml < EndAml)
|
|
{
|
|
if (AcpiUtGetResourceType (Aml) == ACPI_RESOURCE_NAME_END_TAG)
|
|
{
|
|
/* Found the end_tag descriptor, all done */
|
|
|
|
return (Aml);
|
|
}
|
|
|
|
/* Point to the next resource descriptor */
|
|
|
|
Aml += AcpiUtGetResourceLength (Aml);
|
|
}
|
|
|
|
/* End tag was not found */
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtReportError
|
|
*
|
|
* PARAMETERS: ModuleName - Caller's module name (for error output)
|
|
* LineNumber - Caller's line number (for error output)
|
|
* ComponentId - Caller's component ID (for error output)
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Print error message
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiUtReportError (
|
|
char *ModuleName,
|
|
UINT32 LineNumber,
|
|
UINT32 ComponentId)
|
|
{
|
|
|
|
AcpiOsPrintf ("%8s-%04d: *** Error: ", ModuleName, LineNumber);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtReportWarning
|
|
*
|
|
* PARAMETERS: ModuleName - Caller's module name (for error output)
|
|
* LineNumber - Caller's line number (for error output)
|
|
* ComponentId - Caller's component ID (for error output)
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Print warning message
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiUtReportWarning (
|
|
char *ModuleName,
|
|
UINT32 LineNumber,
|
|
UINT32 ComponentId)
|
|
{
|
|
|
|
AcpiOsPrintf ("%8s-%04d: *** Warning: ", ModuleName, LineNumber);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtReportInfo
|
|
*
|
|
* PARAMETERS: ModuleName - Caller's module name (for error output)
|
|
* LineNumber - Caller's line number (for error output)
|
|
* ComponentId - Caller's component ID (for error output)
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|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Print information message
|
|
*
|
|
******************************************************************************/
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|
|
|
void
|
|
AcpiUtReportInfo (
|
|
char *ModuleName,
|
|
UINT32 LineNumber,
|
|
UINT32 ComponentId)
|
|
{
|
|
|
|
AcpiOsPrintf ("%8s-%04d: *** Info: ", ModuleName, LineNumber);
|
|
}
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|
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|