498 lines
16 KiB
C
498 lines
16 KiB
C
/*******************************************************************************
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*
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* Module Name: rsutils - Utilities for the resource manager
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* $Revision: 20 $
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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, 2000, 2001, 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 __RSUTILS_C__
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#include "acpi.h"
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#include "acnamesp.h"
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#include "acresrc.h"
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#define _COMPONENT ACPI_RESOURCES
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MODULE_NAME ("rsutils")
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetPrtMethodData
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*
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* PARAMETERS: Handle - a handle to the containing object
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* RetBuffer - a pointer to a buffer structure for the
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* results
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the _PRT value of an object
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* contained in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetPrtMethodData (
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ACPI_HANDLE Handle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_OPERAND_OBJECT *RetObj;
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ACPI_STATUS Status;
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UINT32 BufferSpaceNeeded;
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FUNCTION_TRACE ("RsGetPrtMethodData");
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/* already validated params, so we won't repeat here */
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BufferSpaceNeeded = RetBuffer->Length;
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/*
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* Execute the method, no parameters
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*/
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Status = AcpiNsEvaluateRelative (Handle, "_PRT", NULL, &RetObj);
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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 (!RetObj)
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{
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/* Return object is required */
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DEBUG_PRINTP (ACPI_ERROR, ("No object was returned from _PRT\n"));
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return_ACPI_STATUS (AE_TYPE);
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}
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/*
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* The return object will be a package, so check the
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* parameters. If the return object is not a package,
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* then the underlying AML code is corrupt or improperly
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* written.
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*/
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if (ACPI_TYPE_PACKAGE != RetObj->Common.Type)
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{
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Status = AE_AML_OPERAND_TYPE;
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goto Cleanup;
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}
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/*
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* Make the call to create a resource linked list from the
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* byte stream buffer that comes back from the _CRS method
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* execution.
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*/
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Status = AcpiRsCreatePciRoutingTable (RetObj, RetBuffer->Pointer,
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&BufferSpaceNeeded);
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/*
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* Tell the user how much of the buffer we have used or is needed
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* and return the final status.
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*/
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RetBuffer->Length = BufferSpaceNeeded;
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/* On exit, we must delete the object returned by evaluateObject */
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Cleanup:
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AcpiUtRemoveReference (RetObj);
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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: AcpiRsGetCrsMethodData
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*
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* PARAMETERS: Handle - a handle to the containing object
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* RetBuffer - a pointer to a buffer structure for the
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* results
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the _CRS value of an object
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* contained in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetCrsMethodData (
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ACPI_HANDLE Handle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_OPERAND_OBJECT *RetObj;
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ACPI_STATUS Status;
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UINT32 BufferSpaceNeeded = RetBuffer->Length;
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FUNCTION_TRACE ("RsGetCrsMethodData");
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/* already validated params, so we won't repeat here */
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/*
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* Execute the method, no parameters
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*/
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Status = AcpiNsEvaluateRelative (Handle, "_CRS", NULL, &RetObj);
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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 (!RetObj)
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{
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/* Return object is required */
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DEBUG_PRINTP (ACPI_ERROR, ("No object was returned from _CRS\n"));
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return_ACPI_STATUS (AE_TYPE);
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}
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/*
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* The return object will be a buffer, but check the
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* parameters. If the return object is not a buffer,
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* then the underlying AML code is corrupt or improperly
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* written.
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*/
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if (ACPI_TYPE_BUFFER != RetObj->Common.Type)
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{
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Status = AE_AML_OPERAND_TYPE;
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goto Cleanup;
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}
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/*
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* Make the call to create a resource linked list from the
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* byte stream buffer that comes back from the _CRS method
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* execution.
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*/
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Status = AcpiRsCreateResourceList (RetObj, RetBuffer->Pointer,
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&BufferSpaceNeeded);
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/*
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* Tell the user how much of the buffer we have used or is needed
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* and return the final status.
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*/
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RetBuffer->Length = BufferSpaceNeeded;
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/* On exit, we must delete the object returned by evaluateObject */
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Cleanup:
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AcpiUtRemoveReference (RetObj);
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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: AcpiRsGetPrsMethodData
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*
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* PARAMETERS: Handle - a handle to the containing object
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* RetBuffer - a pointer to a buffer structure for the
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* results
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the _PRS value of an object
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* contained in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetPrsMethodData (
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ACPI_HANDLE Handle,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_OPERAND_OBJECT *RetObj;
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ACPI_STATUS Status;
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UINT32 BufferSpaceNeeded = RetBuffer->Length;
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FUNCTION_TRACE ("RsGetPrsMethodData");
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/* already validated params, so we won't repeat here */
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/*
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* Execute the method, no parameters
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*/
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Status = AcpiNsEvaluateRelative (Handle, "_PRS", NULL, &RetObj);
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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 (!RetObj)
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{
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/* Return object is required */
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DEBUG_PRINTP (ACPI_ERROR, ("No object was returned from _PRS\n"));
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return_ACPI_STATUS (AE_TYPE);
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}
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/*
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* The return object will be a buffer, but check the
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* parameters. If the return object is not a buffer,
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* then the underlying AML code is corrupt or improperly
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* written..
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*/
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if (ACPI_TYPE_BUFFER != RetObj->Common.Type)
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{
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Status = AE_AML_OPERAND_TYPE;
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goto Cleanup;
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}
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/*
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* Make the call to create a resource linked list from the
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* byte stream buffer that comes back from the _CRS method
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* execution.
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*/
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Status = AcpiRsCreateResourceList (RetObj, RetBuffer->Pointer,
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&BufferSpaceNeeded);
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/*
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* Tell the user how much of the buffer we have used or is needed
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* and return the final status.
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*/
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RetBuffer->Length = BufferSpaceNeeded;
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/* On exit, we must delete the object returned by evaluateObject */
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Cleanup:
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AcpiUtRemoveReference (RetObj);
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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: AcpiRsSetSrsMethodData
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*
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* PARAMETERS: Handle - a handle to the containing object
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* InBuffer - a pointer to a buffer structure of the
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* parameter
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to set the _SRS of an object contained
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* in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsSetSrsMethodData (
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ACPI_HANDLE Handle,
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ACPI_BUFFER *InBuffer)
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{
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ACPI_OPERAND_OBJECT *Params[2];
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ACPI_OPERAND_OBJECT ParamObj;
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ACPI_STATUS Status;
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UINT8 *ByteStream = NULL;
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UINT32 BufferSizeNeeded = 0;
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FUNCTION_TRACE ("RsSetSrsMethodData");
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/* already validated params, so we won't repeat here */
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/*
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* The InBuffer parameter will point to a linked list of
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* resource parameters. It needs to be formatted into a
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* byte stream to be sent in as an input parameter.
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*/
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BufferSizeNeeded = 0;
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/*
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* First call is to get the buffer size needed
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*/
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Status = AcpiRsCreateByteStream (InBuffer->Pointer, ByteStream,
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&BufferSizeNeeded);
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/*
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* We expect a return of AE_BUFFER_OVERFLOW
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* if not, exit with the error
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*/
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if (AE_BUFFER_OVERFLOW != 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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* Allocate the buffer needed
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*/
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ByteStream = ACPI_MEM_CALLOCATE (BufferSizeNeeded);
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if (NULL == ByteStream)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/*
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* Now call to convert the linked list into a byte stream
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*/
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Status = AcpiRsCreateByteStream (InBuffer->Pointer, ByteStream,
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&BufferSizeNeeded);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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/*
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* Init the param object
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*/
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AcpiUtInitStaticObject (&ParamObj);
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/*
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* Method requires one parameter. Set it up
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*/
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Params [0] = &ParamObj;
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Params [1] = NULL;
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/*
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* Set up the parameter object
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*/
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ParamObj.Common.Type = ACPI_TYPE_BUFFER;
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ParamObj.Buffer.Length = BufferSizeNeeded;
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ParamObj.Buffer.Pointer = ByteStream;
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/*
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* Execute the method, no return value
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*/
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Status = AcpiNsEvaluateRelative (Handle, "_SRS", Params, NULL);
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/*
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* Clean up and return the status from AcpiNsEvaluateRelative
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*/
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Cleanup:
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ACPI_MEM_FREE (ByteStream);
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return_ACPI_STATUS (Status);
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}
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