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freebsd/sys/contrib/dev/acpica/rsutils.c

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/*******************************************************************************
*
* Module Name: rsutils - Utilities for the resource manager
* $Revision: 37 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __RSUTILS_C__
#include "acpi.h"
#include "acnamesp.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME ("rsutils")
/*******************************************************************************
*
* FUNCTION: AcpiRsGetPrtMethodData
*
* PARAMETERS: Handle - a handle to the containing object
* RetBuffer - a pointer to a buffer structure for the
* results
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the _PRT value of an object
* contained in an object specified by the handle passed in
*
* If the function fails an appropriate status will be returned
* and the contents of the callers buffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiRsGetPrtMethodData (
ACPI_HANDLE Handle,
ACPI_BUFFER *RetBuffer)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("RsGetPrtMethodData");
/* Parameters guaranteed valid by caller */
/*
* Execute the method, no parameters
*/
Status = AcpiUtEvaluateObject (Handle, "_PRT", ACPI_BTYPE_PACKAGE, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Create a resource linked list from the byte stream buffer that comes
* back from the _CRS method execution.
*/
Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer);
/* On exit, we must delete the object returned by EvaluateObject */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsGetCrsMethodData
*
* PARAMETERS: Handle - a handle to the containing object
* RetBuffer - a pointer to a buffer structure for the
* results
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the _CRS value of an object
* contained in an object specified by the handle passed in
*
* If the function fails an appropriate status will be returned
* and the contents of the callers buffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiRsGetCrsMethodData (
ACPI_HANDLE Handle,
ACPI_BUFFER *RetBuffer)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("RsGetCrsMethodData");
/* Parameters guaranteed valid by caller */
/*
* Execute the method, no parameters
*/
Status = AcpiUtEvaluateObject (Handle, "_CRS", ACPI_BTYPE_BUFFER, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Make the call to create a resource linked list from the
* byte stream buffer that comes back from the _CRS method
* execution.
*/
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
/* On exit, we must delete the object returned by evaluateObject */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsGetPrsMethodData
*
* PARAMETERS: Handle - a handle to the containing object
* RetBuffer - a pointer to a buffer structure for the
* results
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the _PRS value of an object
* contained in an object specified by the handle passed in
*
* If the function fails an appropriate status will be returned
* and the contents of the callers buffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiRsGetPrsMethodData (
ACPI_HANDLE Handle,
ACPI_BUFFER *RetBuffer)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("RsGetPrsMethodData");
/* Parameters guaranteed valid by caller */
/*
* Execute the method, no parameters
*/
Status = AcpiUtEvaluateObject (Handle, "_PRS", ACPI_BTYPE_BUFFER, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Make the call to create a resource linked list from the
* byte stream buffer that comes back from the _CRS method
* execution.
*/
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
/* On exit, we must delete the object returned by evaluateObject */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsGetMethodData
*
* PARAMETERS: Handle - a handle to the containing object
* RetBuffer - a pointer to a buffer structure for the
* results
*
* RETURN: Status
*
* DESCRIPTION: This function is called to get the _CRS or _PRS value of an
* object contained in an object specified by the handle passed in
*
* If the function fails an appropriate status will be returned
* and the contents of the callers buffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiRsGetMethodData (
ACPI_HANDLE Handle,
char *Path,
ACPI_BUFFER *RetBuffer)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("RsGetMethodData");
/* Parameters guaranteed valid by caller */
/*
* Execute the method, no parameters
*/
Status = AcpiUtEvaluateObject (Handle, Path, ACPI_BTYPE_BUFFER, &ObjDesc);
if (ACPI_FAILURE (Status)) {
return_ACPI_STATUS (Status);
}
/*
* Make the call to create a resource linked list from the
* byte stream buffer that comes back from the method
* execution.
*/
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
/* On exit, we must delete the object returned by EvaluateObject */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsSetSrsMethodData
*
* PARAMETERS: Handle - a handle to the containing object
* InBuffer - a pointer to a buffer structure of the
* parameter
*
* RETURN: Status
*
* DESCRIPTION: This function is called to set the _SRS of an object contained
* in an object specified by the handle passed in
*
* If the function fails an appropriate status will be returned
* and the contents of the callers buffer is undefined.
*
******************************************************************************/
ACPI_STATUS
AcpiRsSetSrsMethodData (
ACPI_HANDLE Handle,
ACPI_BUFFER *InBuffer)
{
ACPI_OPERAND_OBJECT *Params[2];
ACPI_STATUS Status;
ACPI_BUFFER Buffer;
ACPI_FUNCTION_TRACE ("RsSetSrsMethodData");
/* Parameters guaranteed valid by caller */
/*
* The InBuffer parameter will point to a linked list of
* resource parameters. It needs to be formatted into a
* byte stream to be sent in as an input parameter to _SRS
*
* Convert the linked list into a byte stream
*/
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
Status = AcpiRsCreateByteStream (InBuffer->Pointer, &Buffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Init the param object
*/
Params[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
if (!Params[0])
{
AcpiOsFree (Buffer.Pointer);
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Set up the parameter object
*/
Params[0]->Buffer.Length = (UINT32) Buffer.Length;
Params[0]->Buffer.Pointer = Buffer.Pointer;
Params[0]->Common.Flags = AOPOBJ_DATA_VALID;
Params[1] = NULL;
/*
* Execute the method, no return value
*/
Status = AcpiNsEvaluateRelative (Handle, "_SRS", Params, NULL);
/*
* Clean up and return the status from AcpiNsEvaluateRelative
*/
AcpiUtRemoveReference (Params[0]);
return_ACPI_STATUS (Status);
}
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