rsutils.c revision 99679
160786Sps/******************************************************************************* 260786Sps * 360786Sps * Module Name: rsutils - Utilities for the resource manager 460786Sps * $Revision: 33 $ 560786Sps * 660786Sps ******************************************************************************/ 760786Sps 860786Sps/****************************************************************************** 960786Sps * 1060786Sps * 1. Copyright Notice 1160786Sps * 1260786Sps * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. 1360786Sps * All rights reserved. 1460786Sps * 1560786Sps * 2. License 1660786Sps * 1760786Sps * 2.1. This is your license from Intel Corp. under its intellectual property 1860786Sps * rights. You may have additional license terms from the party that provided 1960786Sps * you this software, covering your right to use that party's intellectual 2060786Sps * property rights. 2160786Sps * 2260786Sps * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2360786Sps * copy of the source code appearing in this file ("Covered Code") an 2460786Sps * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2560786Sps * base code distributed originally by Intel ("Original Intel Code") to copy, 2660786Sps * make derivatives, distribute, use and display any portion of the Covered 2760786Sps * Code in any form, with the right to sublicense such rights; and 2860786Sps * 2960786Sps * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 3060786Sps * license (with the right to sublicense), under only those claims of Intel 3160786Sps * patents that are infringed by the Original Intel Code, to make, use, sell, 3260786Sps * offer to sell, and import the Covered Code and derivative works thereof 3360786Sps * solely to the minimum extent necessary to exercise the above copyright 3460786Sps * license, and in no event shall the patent license extend to any additions 3560786Sps * to or modifications of the Original Intel Code. No other license or right 3660786Sps * is granted directly or by implication, estoppel or otherwise; 3760786Sps * 3860786Sps * The above copyright and patent license is granted only if the following 3960786Sps * conditions are met: 4060786Sps * 4160786Sps * 3. Conditions 4260786Sps * 4360786Sps * 3.1. Redistribution of Source with Rights to Further Distribute Source. 4460786Sps * Redistribution of source code of any substantial portion of the Covered 4560786Sps * Code or modification with rights to further distribute source must include 4660786Sps * the above Copyright Notice, the above License, this list of Conditions, 4760786Sps * and the following Disclaimer and Export Compliance provision. In addition, 4860786Sps * Licensee must cause all Covered Code to which Licensee contributes to 4960786Sps * contain a file documenting the changes Licensee made to create that Covered 5060786Sps * Code and the date of any change. Licensee must include in that file the 5160786Sps * documentation of any changes made by any predecessor Licensee. Licensee 5260786Sps * must include a prominent statement that the modification is derived, 5360786Sps * directly or indirectly, from Original Intel Code. 5460786Sps * 5560786Sps * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 5660786Sps * Redistribution of source code of any substantial portion of the Covered 5760786Sps * Code or modification without rights to further distribute source must 5860786Sps * include the following Disclaimer and Export Compliance provision in the 5960786Sps * documentation and/or other materials provided with distribution. In 6060786Sps * addition, Licensee may not authorize further sublicense of source of any 6160786Sps * portion of the Covered Code, and must include terms to the effect that the 6260786Sps * license from Licensee to its licensee is limited to the intellectual 6360786Sps * property embodied in the software Licensee provides to its licensee, and 6460786Sps * not to intellectual property embodied in modifications its licensee may 6560786Sps * make. 6660786Sps * 6760786Sps * 3.3. Redistribution of Executable. Redistribution in executable form of any 6860786Sps * substantial portion of the Covered Code or modification must reproduce the 6960786Sps * above Copyright Notice, and the following Disclaimer and Export Compliance 7060786Sps * provision in the documentation and/or other materials provided with the 7160786Sps * distribution. 7260786Sps * 7360786Sps * 3.4. Intel retains all right, title, and interest in and to the Original 7460786Sps * Intel Code. 7560786Sps * 7660786Sps * 3.5. Neither the name Intel nor any other trademark owned or controlled by 7760786Sps * Intel shall be used in advertising or otherwise to promote the sale, use or 7860786Sps * other dealings in products derived from or relating to the Covered Code 7960786Sps * without prior written authorization from Intel. 8060786Sps * 8160786Sps * 4. Disclaimer and Export Compliance 8260786Sps * 8360786Sps * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 8460786Sps * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 8560786Sps * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 8660786Sps * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 8760786Sps * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 8860786Sps * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 8960786Sps * PARTICULAR PURPOSE. 9060786Sps * 9160786Sps * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 9260786Sps * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 9360786Sps * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 9460786Sps * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 9560786Sps * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 9660786Sps * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 9760786Sps * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 9860786Sps * LIMITED REMEDY. 9960786Sps * 10060786Sps * 4.3. Licensee shall not export, either directly or indirectly, any of this 10160786Sps * software or system incorporating such software without first obtaining any 10260786Sps * required license or other approval from the U. S. Department of Commerce or 10360786Sps * any other agency or department of the United States Government. In the 10460786Sps * event Licensee exports any such software from the United States or 10560786Sps * re-exports any such software from a foreign destination, Licensee shall 10660786Sps * ensure that the distribution and export/re-export of the software is in 10760786Sps * compliance with all laws, regulations, orders, or other restrictions of the 10860786Sps * U.S. Export Administration Regulations. Licensee agrees that neither it nor 10960786Sps * any of its subsidiaries will export/re-export any technical data, process, 11060786Sps * software, or service, directly or indirectly, to any country for which the 11160786Sps * United States government or any agency thereof requires an export license, 11260786Sps * other governmental approval, or letter of assurance, without first obtaining 11360786Sps * such license, approval or letter. 11460786Sps * 11560786Sps *****************************************************************************/ 11660786Sps 11760786Sps 11860786Sps#define __RSUTILS_C__ 11960786Sps 12060786Sps#include "acpi.h" 12160786Sps#include "acnamesp.h" 12260786Sps#include "acresrc.h" 12360786Sps 12460786Sps 12560786Sps#define _COMPONENT ACPI_RESOURCES 12660786Sps ACPI_MODULE_NAME ("rsutils") 12760786Sps 12860786Sps 12960786Sps/******************************************************************************* 13060786Sps * 13160786Sps * FUNCTION: AcpiRsGetPrtMethodData 13260786Sps * 13360786Sps * PARAMETERS: Handle - a handle to the containing object 13460786Sps * RetBuffer - a pointer to a buffer structure for the 13560786Sps * results 13660786Sps * 13760786Sps * RETURN: Status 13860786Sps * 13960786Sps * DESCRIPTION: This function is called to get the _PRT value of an object 14060786Sps * contained in an object specified by the handle passed in 14160786Sps * 14260786Sps * If the function fails an appropriate status will be returned 14360786Sps * and the contents of the callers buffer is undefined. 14460786Sps * 14560786Sps ******************************************************************************/ 14660786Sps 14760786SpsACPI_STATUS 14860786SpsAcpiRsGetPrtMethodData ( 14960786Sps ACPI_HANDLE Handle, 15060786Sps ACPI_BUFFER *RetBuffer) 15160786Sps{ 15260786Sps ACPI_OPERAND_OBJECT *ObjDesc; 15360786Sps ACPI_STATUS Status; 15460786Sps 15560786Sps 15660786Sps ACPI_FUNCTION_TRACE ("RsGetPrtMethodData"); 15760786Sps 15860786Sps 15960786Sps /* Parameters guaranteed valid by caller */ 16060786Sps 16160786Sps /* 16260786Sps * Execute the method, no parameters 16360786Sps */ 16460786Sps Status = AcpiNsEvaluateRelative (Handle, "_PRT", NULL, &ObjDesc); 16560786Sps if (ACPI_FAILURE (Status)) 16660786Sps { 16760786Sps return_ACPI_STATUS (Status); 16860786Sps } 16960786Sps 17060786Sps if (!ObjDesc) 17160786Sps { 17260786Sps /* Return object is required */ 17360786Sps 17460786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object was returned from _PRT\n")); 17560786Sps return_ACPI_STATUS (AE_TYPE); 17660786Sps } 17760786Sps 17860786Sps /* 17960786Sps * The return object must be a package, so check the parameters. If the 18060786Sps * return object is not a package, then the underlying AML code is corrupt 18160786Sps * or improperly written. 18260786Sps */ 18360786Sps if (ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_PACKAGE) 18460786Sps { 18560786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "_PRT did not return a Package, returned %s\n", 18660786Sps AcpiUtGetObjectTypeName (ObjDesc))); 18760786Sps Status = AE_AML_OPERAND_TYPE; 18860786Sps goto Cleanup; 18960786Sps } 19060786Sps 19160786Sps /* 19260786Sps * Create a resource linked list from the byte stream buffer that comes 19360786Sps * back from the _CRS method execution. 19460786Sps */ 19560786Sps Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer); 19660786Sps 19760786Sps /* On exit, we must delete the object returned by EvaluateObject */ 19860786Sps 19960786SpsCleanup: 20060786Sps 20160786Sps AcpiUtRemoveReference (ObjDesc); 20260786Sps return_ACPI_STATUS (Status); 20360786Sps} 20460786Sps 20560786Sps 20660786Sps/******************************************************************************* 20760786Sps * 20860786Sps * FUNCTION: AcpiRsGetCrsMethodData 20960786Sps * 21060786Sps * PARAMETERS: Handle - a handle to the containing object 21160786Sps * RetBuffer - a pointer to a buffer structure for the 21260786Sps * results 21360786Sps * 21460786Sps * RETURN: Status 21560786Sps * 21660786Sps * DESCRIPTION: This function is called to get the _CRS value of an object 21760786Sps * contained in an object specified by the handle passed in 21860786Sps * 21960786Sps * If the function fails an appropriate status will be returned 22060786Sps * and the contents of the callers buffer is undefined. 22160786Sps * 22260786Sps ******************************************************************************/ 22360786Sps 22460786SpsACPI_STATUS 22560786SpsAcpiRsGetCrsMethodData ( 22660786Sps ACPI_HANDLE Handle, 22760786Sps ACPI_BUFFER *RetBuffer) 22860786Sps{ 22960786Sps ACPI_OPERAND_OBJECT *ObjDesc; 23060786Sps ACPI_STATUS Status; 23160786Sps 23260786Sps 23360786Sps ACPI_FUNCTION_TRACE ("RsGetCrsMethodData"); 23460786Sps 23560786Sps 23660786Sps /* Parameters guaranteed valid by caller */ 23760786Sps 23860786Sps /* 23960786Sps * Execute the method, no parameters 24060786Sps */ 24160786Sps Status = AcpiNsEvaluateRelative (Handle, "_CRS", NULL, &ObjDesc); 24260786Sps if (ACPI_FAILURE (Status)) 24360786Sps { 24460786Sps return_ACPI_STATUS (Status); 24560786Sps } 24660786Sps 24760786Sps if (!ObjDesc) 24860786Sps { 24960786Sps /* Return object is required */ 25060786Sps 25160786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object was returned from _CRS\n")); 25260786Sps return_ACPI_STATUS (AE_TYPE); 25360786Sps } 25460786Sps 25560786Sps /* 25660786Sps * The return object will be a buffer, but check the 25760786Sps * parameters. If the return object is not a buffer, 25860786Sps * then the underlying AML code is corrupt or improperly 25960786Sps * written. 26060786Sps */ 26160786Sps if (ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_BUFFER) 26260786Sps { 26360786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "_CRS did not return a Buffer, returned %s\n", 26460786Sps AcpiUtGetObjectTypeName (ObjDesc))); 26560786Sps Status = AE_AML_OPERAND_TYPE; 26660786Sps goto Cleanup; 26760786Sps } 26860786Sps 26960786Sps /* 27060786Sps * Make the call to create a resource linked list from the 27160786Sps * byte stream buffer that comes back from the _CRS method 27260786Sps * execution. 27360786Sps */ 27460786Sps Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); 27560786Sps 27660786Sps /* On exit, we must delete the object returned by evaluateObject */ 27760786Sps 27860786SpsCleanup: 27960786Sps 28060786Sps AcpiUtRemoveReference (ObjDesc); 28160786Sps return_ACPI_STATUS (Status); 28260786Sps} 28360786Sps 28460786Sps 28560786Sps/******************************************************************************* 28660786Sps * 28760786Sps * FUNCTION: AcpiRsGetPrsMethodData 28860786Sps * 28960786Sps * PARAMETERS: Handle - a handle to the containing object 29060786Sps * RetBuffer - a pointer to a buffer structure for the 29160786Sps * results 29260786Sps * 29360786Sps * RETURN: Status 29460786Sps * 29560786Sps * DESCRIPTION: This function is called to get the _PRS value of an object 29660786Sps * contained in an object specified by the handle passed in 29760786Sps * 29860786Sps * If the function fails an appropriate status will be returned 29960786Sps * and the contents of the callers buffer is undefined. 30060786Sps * 30160786Sps ******************************************************************************/ 30260786Sps 30360786SpsACPI_STATUS 30460786SpsAcpiRsGetPrsMethodData ( 30560786Sps ACPI_HANDLE Handle, 30660786Sps ACPI_BUFFER *RetBuffer) 30760786Sps{ 30860786Sps ACPI_OPERAND_OBJECT *ObjDesc; 30960786Sps ACPI_STATUS Status; 31060786Sps 31160786Sps 31260786Sps ACPI_FUNCTION_TRACE ("RsGetPrsMethodData"); 31360786Sps 31460786Sps 31560786Sps /* Parameters guaranteed valid by caller */ 31660786Sps 31760786Sps /* 31860786Sps * Execute the method, no parameters 31960786Sps */ 32060786Sps Status = AcpiNsEvaluateRelative (Handle, "_PRS", NULL, &ObjDesc); 32160786Sps if (ACPI_FAILURE (Status)) 32260786Sps { 32360786Sps return_ACPI_STATUS (Status); 32460786Sps } 32560786Sps 32660786Sps if (!ObjDesc) 32760786Sps { 32860786Sps /* Return object is required */ 32960786Sps 33060786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object was returned from _PRS\n")); 33160786Sps return_ACPI_STATUS (AE_TYPE); 33260786Sps } 33360786Sps 33460786Sps /* 33560786Sps * The return object will be a buffer, but check the 33660786Sps * parameters. If the return object is not a buffer, 33760786Sps * then the underlying AML code is corrupt or improperly 33860786Sps * written.. 33960786Sps */ 34060786Sps if (ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_BUFFER) 34160786Sps { 34260786Sps ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "_PRS did not return a Buffer, returned %s\n", 34360786Sps AcpiUtGetObjectTypeName (ObjDesc))); 34460786Sps Status = AE_AML_OPERAND_TYPE; 34560786Sps goto Cleanup; 34660786Sps } 34760786Sps 34860786Sps /* 34960786Sps * Make the call to create a resource linked list from the 35060786Sps * byte stream buffer that comes back from the _CRS method 35160786Sps * execution. 35260786Sps */ 35360786Sps Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); 35460786Sps 35560786Sps /* On exit, we must delete the object returned by evaluateObject */ 35660786Sps 35760786SpsCleanup: 35860786Sps 35960786Sps AcpiUtRemoveReference (ObjDesc); 36060786Sps return_ACPI_STATUS (Status); 36160786Sps} 36260786Sps 36360786Sps 36460786Sps/******************************************************************************* 36560786Sps * 36660786Sps * FUNCTION: AcpiRsSetSrsMethodData 36760786Sps * 36860786Sps * PARAMETERS: Handle - a handle to the containing object 36960786Sps * InBuffer - a pointer to a buffer structure of the 37060786Sps * parameter 37160786Sps * 37260786Sps * RETURN: Status 37360786Sps * 37460786Sps * DESCRIPTION: This function is called to set the _SRS of an object contained 37560786Sps * in an object specified by the handle passed in 37660786Sps * 37760786Sps * If the function fails an appropriate status will be returned 37860786Sps * and the contents of the callers buffer is undefined. 37960786Sps * 38060786Sps ******************************************************************************/ 38160786Sps 38260786SpsACPI_STATUS 38360786SpsAcpiRsSetSrsMethodData ( 38460786Sps ACPI_HANDLE Handle, 38560786Sps ACPI_BUFFER *InBuffer) 38660786Sps{ 38760786Sps ACPI_OPERAND_OBJECT *Params[2]; 38860786Sps ACPI_STATUS Status; 38960786Sps ACPI_BUFFER Buffer; 39060786Sps 39160786Sps 39260786Sps ACPI_FUNCTION_TRACE ("RsSetSrsMethodData"); 39360786Sps 39460786Sps 39560786Sps /* Parameters guaranteed valid by caller */ 39660786Sps 39760786Sps /* 39860786Sps * The InBuffer parameter will point to a linked list of 39960786Sps * resource parameters. It needs to be formatted into a 40060786Sps * byte stream to be sent in as an input parameter to _SRS 40160786Sps * 40260786Sps * Convert the linked list into a byte stream 40360786Sps */ 40460786Sps Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 40560786Sps Status = AcpiRsCreateByteStream (InBuffer->Pointer, &Buffer); 40660786Sps if (ACPI_FAILURE (Status)) 40760786Sps { 40860786Sps return_ACPI_STATUS (Status); 40960786Sps } 41060786Sps 41160786Sps /* 41260786Sps * Init the param object 41360786Sps */ 41460786Sps Params[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); 41560786Sps if (!Params[0]) 41660786Sps { 41760786Sps AcpiOsFree (Buffer.Pointer); 41860786Sps return_ACPI_STATUS (AE_NO_MEMORY); 41960786Sps } 42060786Sps 42160786Sps /* 42260786Sps * Set up the parameter object 42360786Sps */ 42460786Sps Params[0]->Buffer.Length = (UINT32) Buffer.Length; 42560786Sps Params[0]->Buffer.Pointer = Buffer.Pointer; 42660786Sps Params[0]->Common.Flags = AOPOBJ_DATA_VALID; 42760786Sps Params[1] = NULL; 42860786Sps 42960786Sps /* 43060786Sps * Execute the method, no return value 43160786Sps */ 43260786Sps Status = AcpiNsEvaluateRelative (Handle, "_SRS", Params, NULL); 43360786Sps 43460786Sps /* 43560786Sps * Clean up and return the status from AcpiNsEvaluateRelative 43660786Sps */ 43760786Sps AcpiUtRemoveReference (Params[0]); 43860786Sps return_ACPI_STATUS (Status); 43960786Sps} 44060786Sps 44160786Sps