534 lines
20 KiB
C
534 lines
20 KiB
C
/*******************************************************************************
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*
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* Module Name: rscreate - Create resource lists/tables
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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 - 2010, 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 __RSCREATE_C__
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acresrc.h>
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#include <contrib/dev/acpica/include/acnamesp.h>
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rscreate")
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsCreateResourceList
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*
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* PARAMETERS: AmlBuffer - Pointer to the resource byte stream
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* OutputBuffer - Pointer to the user's buffer
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*
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* RETURN: Status: AE_OK if okay, else a valid ACPI_STATUS code
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* If OutputBuffer is not large enough, OutputBufferLength
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* indicates how large OutputBuffer should be, else it
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* indicates how may UINT8 elements of OutputBuffer are valid.
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*
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* DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
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* execution and parses the stream to create a linked list
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* of device resources.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsCreateResourceList (
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ACPI_OPERAND_OBJECT *AmlBuffer,
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ACPI_BUFFER *OutputBuffer)
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{
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ACPI_STATUS Status;
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UINT8 *AmlStart;
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ACPI_SIZE ListSizeNeeded = 0;
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UINT32 AmlBufferLength;
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void *Resource;
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ACPI_FUNCTION_TRACE (RsCreateResourceList);
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlBuffer = %p\n",
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AmlBuffer));
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/* Params already validated, so we don't re-validate here */
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AmlBufferLength = AmlBuffer->Buffer.Length;
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AmlStart = AmlBuffer->Buffer.Pointer;
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/*
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* Pass the AmlBuffer into a module that can calculate
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* the buffer size needed for the linked list
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*/
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Status = AcpiRsGetListLength (AmlStart, AmlBufferLength,
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&ListSizeNeeded);
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
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Status, (UINT32) ListSizeNeeded));
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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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/* Validate/Allocate/Clear caller buffer */
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Status = AcpiUtInitializeBuffer (OutputBuffer, ListSizeNeeded);
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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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/* Do the conversion */
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Resource = OutputBuffer->Pointer;
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Status = AcpiUtWalkAmlResources (AmlStart, AmlBufferLength,
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AcpiRsConvertAmlToResources, &Resource);
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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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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
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OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsCreatePciRoutingTable
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*
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* PARAMETERS: PackageObject - Pointer to an ACPI_OPERAND_OBJECT
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* package
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* OutputBuffer - Pointer to the user's buffer
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*
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* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
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* If the OutputBuffer is too small, the error will be
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* AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
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* to the size buffer needed.
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*
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* DESCRIPTION: Takes the ACPI_OPERAND_OBJECT package and creates a
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* linked list of PCI interrupt descriptions
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*
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* NOTE: It is the caller's responsibility to ensure that the start of the
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* output buffer is aligned properly (if necessary).
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsCreatePciRoutingTable (
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ACPI_OPERAND_OBJECT *PackageObject,
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ACPI_BUFFER *OutputBuffer)
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{
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UINT8 *Buffer;
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ACPI_OPERAND_OBJECT **TopObjectList;
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ACPI_OPERAND_OBJECT **SubObjectList;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_SIZE BufferSizeNeeded = 0;
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UINT32 NumberOfElements;
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UINT32 Index;
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ACPI_PCI_ROUTING_TABLE *UserPrt;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_BUFFER PathBuffer;
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ACPI_FUNCTION_TRACE (RsCreatePciRoutingTable);
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/* Params already validated, so we don't re-validate here */
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/* Get the required buffer length */
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Status = AcpiRsGetPciRoutingTableLength (PackageObject,
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&BufferSizeNeeded);
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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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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
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(UINT32) BufferSizeNeeded));
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/* Validate/Allocate/Clear caller buffer */
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Status = AcpiUtInitializeBuffer (OutputBuffer, BufferSizeNeeded);
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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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/*
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* Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
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* package that in turn contains an UINT64 Address, a UINT8 Pin,
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* a Name, and a UINT8 SourceIndex.
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*/
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TopObjectList = PackageObject->Package.Elements;
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NumberOfElements = PackageObject->Package.Count;
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Buffer = OutputBuffer->Pointer;
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UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
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for (Index = 0; Index < NumberOfElements; Index++)
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{
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/*
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* Point UserPrt past this current structure
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*
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* NOTE: On the first iteration, UserPrt->Length will
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* be zero because we cleared the return buffer earlier
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*/
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Buffer += UserPrt->Length;
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UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
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/*
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* Fill in the Length field with the information we have at this point.
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* The minus four is to subtract the size of the UINT8 Source[4] member
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* because it is added below.
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*/
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UserPrt->Length = (sizeof (ACPI_PCI_ROUTING_TABLE) - 4);
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/* Each element of the top-level package must also be a package */
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if ((*TopObjectList)->Common.Type != ACPI_TYPE_PACKAGE)
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{
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ACPI_ERROR ((AE_INFO,
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"(PRT[%u]) Need sub-package, found %s",
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Index, AcpiUtGetObjectTypeName (*TopObjectList)));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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/* Each sub-package must be of length 4 */
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if ((*TopObjectList)->Package.Count != 4)
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{
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ACPI_ERROR ((AE_INFO,
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"(PRT[%u]) Need package of length 4, found length %u",
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Index, (*TopObjectList)->Package.Count));
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return_ACPI_STATUS (AE_AML_PACKAGE_LIMIT);
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}
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/*
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* Dereference the sub-package.
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* The SubObjectList will now point to an array of the four IRQ
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* elements: [Address, Pin, Source, SourceIndex]
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*/
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SubObjectList = (*TopObjectList)->Package.Elements;
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/* 1) First subobject: Dereference the PRT.Address */
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ObjDesc = SubObjectList[0];
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if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
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{
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ACPI_ERROR ((AE_INFO, "(PRT[%u].Address) Need Integer, found %s",
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Index, AcpiUtGetObjectTypeName (ObjDesc)));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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UserPrt->Address = ObjDesc->Integer.Value;
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/* 2) Second subobject: Dereference the PRT.Pin */
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ObjDesc = SubObjectList[1];
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if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
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{
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ACPI_ERROR ((AE_INFO, "(PRT[%u].Pin) Need Integer, found %s",
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Index, AcpiUtGetObjectTypeName (ObjDesc)));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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UserPrt->Pin = (UINT32) ObjDesc->Integer.Value;
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/*
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* If the BIOS has erroneously reversed the _PRT SourceName (index 2)
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* and the SourceIndex (index 3), fix it. _PRT is important enough to
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* workaround this BIOS error. This also provides compatibility with
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* other ACPI implementations.
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*/
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ObjDesc = SubObjectList[3];
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if (!ObjDesc || (ObjDesc->Common.Type != ACPI_TYPE_INTEGER))
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{
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SubObjectList[3] = SubObjectList[2];
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SubObjectList[2] = ObjDesc;
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ACPI_WARNING ((AE_INFO,
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"(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
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Index));
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}
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/*
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* 3) Third subobject: Dereference the PRT.SourceName
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* The name may be unresolved (slack mode), so allow a null object
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*/
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ObjDesc = SubObjectList[2];
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if (ObjDesc)
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{
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switch (ObjDesc->Common.Type)
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{
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case ACPI_TYPE_LOCAL_REFERENCE:
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if (ObjDesc->Reference.Class != ACPI_REFCLASS_NAME)
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{
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ACPI_ERROR ((AE_INFO,
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"(PRT[%u].Source) Need name, found Reference Class 0x%X",
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Index, ObjDesc->Reference.Class));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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Node = ObjDesc->Reference.Node;
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/* Use *remaining* length of the buffer as max for pathname */
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PathBuffer.Length = OutputBuffer->Length -
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(UINT32) ((UINT8 *) UserPrt->Source -
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(UINT8 *) OutputBuffer->Pointer);
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PathBuffer.Pointer = UserPrt->Source;
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Status = AcpiNsHandleToPathname ((ACPI_HANDLE) Node, &PathBuffer);
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/* +1 to include null terminator */
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UserPrt->Length += (UINT32) ACPI_STRLEN (UserPrt->Source) + 1;
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break;
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case ACPI_TYPE_STRING:
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ACPI_STRCPY (UserPrt->Source, ObjDesc->String.Pointer);
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/*
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* Add to the Length field the length of the string
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* (add 1 for terminator)
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*/
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UserPrt->Length += ObjDesc->String.Length + 1;
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break;
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case ACPI_TYPE_INTEGER:
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/*
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* If this is a number, then the Source Name is NULL, since the
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* entire buffer was zeroed out, we can leave this alone.
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*
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* Add to the Length field the length of the UINT32 NULL
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*/
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UserPrt->Length += sizeof (UINT32);
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break;
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default:
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ACPI_ERROR ((AE_INFO,
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"(PRT[%u].Source) Need Ref/String/Integer, found %s",
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Index, AcpiUtGetObjectTypeName (ObjDesc)));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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}
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/* Now align the current length */
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UserPrt->Length = (UINT32) ACPI_ROUND_UP_TO_64BIT (UserPrt->Length);
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/* 4) Fourth subobject: Dereference the PRT.SourceIndex */
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ObjDesc = SubObjectList[3];
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if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
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{
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ACPI_ERROR ((AE_INFO,
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"(PRT[%u].SourceIndex) Need Integer, found %s",
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Index, AcpiUtGetObjectTypeName (ObjDesc)));
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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UserPrt->SourceIndex = (UINT32) ObjDesc->Integer.Value;
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/* Point to the next ACPI_OPERAND_OBJECT in the top level package */
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TopObjectList++;
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
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OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsCreateAmlResources
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*
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* PARAMETERS: LinkedListBuffer - Pointer to the resource linked list
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* OutputBuffer - Pointer to the user's buffer
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*
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* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code.
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* If the OutputBuffer is too small, the error will be
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* AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
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* to the size buffer needed.
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*
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* DESCRIPTION: Takes the linked list of device resources and
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* creates a bytestream to be used as input for the
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* _SRS control method.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsCreateAmlResources (
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ACPI_RESOURCE *LinkedListBuffer,
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ACPI_BUFFER *OutputBuffer)
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{
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ACPI_STATUS Status;
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ACPI_SIZE AmlSizeNeeded = 0;
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ACPI_FUNCTION_TRACE (RsCreateAmlResources);
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
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LinkedListBuffer));
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/*
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* Params already validated, so we don't re-validate here
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*
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* Pass the LinkedListBuffer into a module that calculates
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* the buffer size needed for the byte stream.
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*/
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Status = AcpiRsGetAmlLength (LinkedListBuffer,
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&AmlSizeNeeded);
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
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(UINT32) AmlSizeNeeded, AcpiFormatException (Status)));
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if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
Status = AcpiUtInitializeBuffer (OutputBuffer, AmlSizeNeeded);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
|
|
Status = AcpiRsConvertResourcesToAml (LinkedListBuffer, AmlSizeNeeded,
|
|
OutputBuffer->Pointer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|