nsrepair2.c revision 199337
1199323Sjkim/****************************************************************************** 2199323Sjkim * 3199323Sjkim * Module Name: nsrepair2 - Repair for objects returned by specific 4199323Sjkim * predefined methods 5199323Sjkim * 6199323Sjkim *****************************************************************************/ 7199323Sjkim 8199323Sjkim/****************************************************************************** 9199323Sjkim * 10199323Sjkim * 1. Copyright Notice 11199323Sjkim * 12199323Sjkim * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp. 13199323Sjkim * All rights reserved. 14199323Sjkim * 15199323Sjkim * 2. License 16199323Sjkim * 17199323Sjkim * 2.1. This is your license from Intel Corp. under its intellectual property 18199323Sjkim * rights. You may have additional license terms from the party that provided 19199323Sjkim * you this software, covering your right to use that party's intellectual 20199323Sjkim * property rights. 21199323Sjkim * 22199323Sjkim * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23199323Sjkim * copy of the source code appearing in this file ("Covered Code") an 24199323Sjkim * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25199323Sjkim * base code distributed originally by Intel ("Original Intel Code") to copy, 26199323Sjkim * make derivatives, distribute, use and display any portion of the Covered 27199323Sjkim * Code in any form, with the right to sublicense such rights; and 28199323Sjkim * 29199323Sjkim * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30199323Sjkim * license (with the right to sublicense), under only those claims of Intel 31199323Sjkim * patents that are infringed by the Original Intel Code, to make, use, sell, 32199323Sjkim * offer to sell, and import the Covered Code and derivative works thereof 33199323Sjkim * solely to the minimum extent necessary to exercise the above copyright 34199323Sjkim * license, and in no event shall the patent license extend to any additions 35199323Sjkim * to or modifications of the Original Intel Code. No other license or right 36199323Sjkim * is granted directly or by implication, estoppel or otherwise; 37199323Sjkim * 38199323Sjkim * The above copyright and patent license is granted only if the following 39199323Sjkim * conditions are met: 40199323Sjkim * 41199323Sjkim * 3. Conditions 42199323Sjkim * 43199323Sjkim * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44199323Sjkim * Redistribution of source code of any substantial portion of the Covered 45199323Sjkim * Code or modification with rights to further distribute source must include 46199323Sjkim * the above Copyright Notice, the above License, this list of Conditions, 47199323Sjkim * and the following Disclaimer and Export Compliance provision. In addition, 48199323Sjkim * Licensee must cause all Covered Code to which Licensee contributes to 49199323Sjkim * contain a file documenting the changes Licensee made to create that Covered 50199323Sjkim * Code and the date of any change. Licensee must include in that file the 51199323Sjkim * documentation of any changes made by any predecessor Licensee. Licensee 52199323Sjkim * must include a prominent statement that the modification is derived, 53199323Sjkim * directly or indirectly, from Original Intel Code. 54199323Sjkim * 55199323Sjkim * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56199323Sjkim * Redistribution of source code of any substantial portion of the Covered 57199323Sjkim * Code or modification without rights to further distribute source must 58199323Sjkim * include the following Disclaimer and Export Compliance provision in the 59199323Sjkim * documentation and/or other materials provided with distribution. In 60199323Sjkim * addition, Licensee may not authorize further sublicense of source of any 61199323Sjkim * portion of the Covered Code, and must include terms to the effect that the 62199323Sjkim * license from Licensee to its licensee is limited to the intellectual 63199323Sjkim * property embodied in the software Licensee provides to its licensee, and 64199323Sjkim * not to intellectual property embodied in modifications its licensee may 65199323Sjkim * make. 66199323Sjkim * 67199323Sjkim * 3.3. Redistribution of Executable. Redistribution in executable form of any 68199323Sjkim * substantial portion of the Covered Code or modification must reproduce the 69199323Sjkim * above Copyright Notice, and the following Disclaimer and Export Compliance 70199323Sjkim * provision in the documentation and/or other materials provided with the 71199323Sjkim * distribution. 72199323Sjkim * 73199323Sjkim * 3.4. Intel retains all right, title, and interest in and to the Original 74199323Sjkim * Intel Code. 75199323Sjkim * 76199323Sjkim * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77199323Sjkim * Intel shall be used in advertising or otherwise to promote the sale, use or 78199323Sjkim * other dealings in products derived from or relating to the Covered Code 79199323Sjkim * without prior written authorization from Intel. 80199323Sjkim * 81199323Sjkim * 4. Disclaimer and Export Compliance 82199323Sjkim * 83199323Sjkim * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84199323Sjkim * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85199323Sjkim * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86199323Sjkim * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87199323Sjkim * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88199323Sjkim * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89199323Sjkim * PARTICULAR PURPOSE. 90199323Sjkim * 91199323Sjkim * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92199323Sjkim * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93199323Sjkim * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94199323Sjkim * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95199323Sjkim * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96199323Sjkim * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97199323Sjkim * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98199323Sjkim * LIMITED REMEDY. 99199323Sjkim * 100199323Sjkim * 4.3. Licensee shall not export, either directly or indirectly, any of this 101199323Sjkim * software or system incorporating such software without first obtaining any 102199323Sjkim * required license or other approval from the U. S. Department of Commerce or 103199323Sjkim * any other agency or department of the United States Government. In the 104199323Sjkim * event Licensee exports any such software from the United States or 105199323Sjkim * re-exports any such software from a foreign destination, Licensee shall 106199323Sjkim * ensure that the distribution and export/re-export of the software is in 107199323Sjkim * compliance with all laws, regulations, orders, or other restrictions of the 108199323Sjkim * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109199323Sjkim * any of its subsidiaries will export/re-export any technical data, process, 110199323Sjkim * software, or service, directly or indirectly, to any country for which the 111199323Sjkim * United States government or any agency thereof requires an export license, 112199323Sjkim * other governmental approval, or letter of assurance, without first obtaining 113199323Sjkim * such license, approval or letter. 114199323Sjkim * 115199323Sjkim *****************************************************************************/ 116199323Sjkim 117199323Sjkim#define __NSREPAIR2_C__ 118199323Sjkim 119199337Sjkim#include <contrib/dev/acpica/include/acpi.h> 120199337Sjkim#include <contrib/dev/acpica/include/accommon.h> 121199337Sjkim#include <contrib/dev/acpica/include/acnamesp.h> 122199323Sjkim 123199323Sjkim#define _COMPONENT ACPI_NAMESPACE 124199323Sjkim ACPI_MODULE_NAME ("nsrepair2") 125199323Sjkim 126199323Sjkim 127199323Sjkim/* 128199323Sjkim * Information structure and handler for ACPI predefined names that can 129199323Sjkim * be repaired on a per-name basis. 130199323Sjkim */ 131199323Sjkimtypedef 132199323SjkimACPI_STATUS (*ACPI_REPAIR_FUNCTION) ( 133199323Sjkim ACPI_PREDEFINED_DATA *Data, 134199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr); 135199323Sjkim 136199323Sjkimtypedef struct acpi_repair_info 137199323Sjkim{ 138199323Sjkim char Name[ACPI_NAME_SIZE]; 139199323Sjkim ACPI_REPAIR_FUNCTION RepairFunction; 140199323Sjkim 141199323Sjkim} ACPI_REPAIR_INFO; 142199323Sjkim 143199323Sjkim 144199323Sjkim/* Local prototypes */ 145199323Sjkim 146199323Sjkimstatic const ACPI_REPAIR_INFO * 147199323SjkimAcpiNsMatchRepairableName ( 148199323Sjkim ACPI_NAMESPACE_NODE *Node); 149199323Sjkim 150199323Sjkimstatic ACPI_STATUS 151199323SjkimAcpiNsRepair_ALR ( 152199323Sjkim ACPI_PREDEFINED_DATA *Data, 153199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr); 154199323Sjkim 155199323Sjkimstatic ACPI_STATUS 156199323SjkimAcpiNsRepair_PSS ( 157199323Sjkim ACPI_PREDEFINED_DATA *Data, 158199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr); 159199323Sjkim 160199323Sjkimstatic ACPI_STATUS 161199323SjkimAcpiNsRepair_TSS ( 162199323Sjkim ACPI_PREDEFINED_DATA *Data, 163199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr); 164199323Sjkim 165199323Sjkimstatic ACPI_STATUS 166199323SjkimAcpiNsCheckSortedList ( 167199323Sjkim ACPI_PREDEFINED_DATA *Data, 168199323Sjkim ACPI_OPERAND_OBJECT *ReturnObject, 169199323Sjkim UINT32 ExpectedCount, 170199323Sjkim UINT32 SortIndex, 171199323Sjkim UINT8 SortDirection, 172199323Sjkim char *SortKeyName); 173199323Sjkim 174199323Sjkimstatic ACPI_STATUS 175199323SjkimAcpiNsRemoveNullElements ( 176199323Sjkim ACPI_OPERAND_OBJECT *Package); 177199323Sjkim 178199323Sjkimstatic ACPI_STATUS 179199323SjkimAcpiNsSortList ( 180199323Sjkim ACPI_OPERAND_OBJECT **Elements, 181199323Sjkim UINT32 Count, 182199323Sjkim UINT32 Index, 183199323Sjkim UINT8 SortDirection); 184199323Sjkim 185199323Sjkim/* Values for SortDirection above */ 186199323Sjkim 187199323Sjkim#define ACPI_SORT_ASCENDING 0 188199323Sjkim#define ACPI_SORT_DESCENDING 1 189199323Sjkim 190199323Sjkim 191199323Sjkim/* 192199323Sjkim * This table contains the names of the predefined methods for which we can 193199323Sjkim * perform more complex repairs. 194199323Sjkim * 195199323Sjkim * _ALR: Sort the list ascending by AmbientIlluminance if necessary 196199323Sjkim * _PSS: Sort the list descending by Power if necessary 197199323Sjkim * _TSS: Sort the list descending by Power if necessary 198199323Sjkim */ 199199323Sjkimstatic const ACPI_REPAIR_INFO AcpiNsRepairableNames[] = 200199323Sjkim{ 201199323Sjkim {"_ALR", AcpiNsRepair_ALR}, 202199323Sjkim {"_PSS", AcpiNsRepair_PSS}, 203199323Sjkim {"_TSS", AcpiNsRepair_TSS}, 204199323Sjkim {{0,0,0,0}, NULL} /* Table terminator */ 205199323Sjkim}; 206199323Sjkim 207199323Sjkim 208199323Sjkim/****************************************************************************** 209199323Sjkim * 210199323Sjkim * FUNCTION: AcpiNsComplexRepairs 211199323Sjkim * 212199323Sjkim * PARAMETERS: Data - Pointer to validation data structure 213199323Sjkim * Node - Namespace node for the method/object 214199323Sjkim * ValidateStatus - Original status of earlier validation 215199323Sjkim * ReturnObjectPtr - Pointer to the object returned from the 216199323Sjkim * evaluation of a method or object 217199323Sjkim * 218199323Sjkim * RETURN: Status. AE_OK if repair was successful. If name is not 219199323Sjkim * matched, ValidateStatus is returned. 220199323Sjkim * 221199323Sjkim * DESCRIPTION: Attempt to repair/convert a return object of a type that was 222199323Sjkim * not expected. 223199323Sjkim * 224199323Sjkim *****************************************************************************/ 225199323Sjkim 226199323SjkimACPI_STATUS 227199323SjkimAcpiNsComplexRepairs ( 228199323Sjkim ACPI_PREDEFINED_DATA *Data, 229199323Sjkim ACPI_NAMESPACE_NODE *Node, 230199323Sjkim ACPI_STATUS ValidateStatus, 231199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr) 232199323Sjkim{ 233199323Sjkim const ACPI_REPAIR_INFO *Predefined; 234199323Sjkim ACPI_STATUS Status; 235199323Sjkim 236199323Sjkim 237199323Sjkim /* Check if this name is in the list of repairable names */ 238199323Sjkim 239199323Sjkim Predefined = AcpiNsMatchRepairableName (Node); 240199323Sjkim if (!Predefined) 241199323Sjkim { 242199323Sjkim return (ValidateStatus); 243199323Sjkim } 244199323Sjkim 245199323Sjkim Status = Predefined->RepairFunction (Data, ReturnObjectPtr); 246199323Sjkim return (Status); 247199323Sjkim} 248199323Sjkim 249199323Sjkim 250199323Sjkim/****************************************************************************** 251199323Sjkim * 252199323Sjkim * FUNCTION: AcpiNsMatchRepairableName 253199323Sjkim * 254199323Sjkim * PARAMETERS: Node - Namespace node for the method/object 255199323Sjkim * 256199323Sjkim * RETURN: Pointer to entry in repair table. NULL indicates not found. 257199323Sjkim * 258199323Sjkim * DESCRIPTION: Check an object name against the repairable object list. 259199323Sjkim * 260199323Sjkim *****************************************************************************/ 261199323Sjkim 262199323Sjkimstatic const ACPI_REPAIR_INFO * 263199323SjkimAcpiNsMatchRepairableName ( 264199323Sjkim ACPI_NAMESPACE_NODE *Node) 265199323Sjkim{ 266199323Sjkim const ACPI_REPAIR_INFO *ThisName; 267199323Sjkim 268199323Sjkim 269199323Sjkim /* Search info table for a repairable predefined method/object name */ 270199323Sjkim 271199323Sjkim ThisName = AcpiNsRepairableNames; 272199323Sjkim while (ThisName->RepairFunction) 273199323Sjkim { 274199323Sjkim if (ACPI_COMPARE_NAME (Node->Name.Ascii, ThisName->Name)) 275199323Sjkim { 276199323Sjkim return (ThisName); 277199323Sjkim } 278199323Sjkim ThisName++; 279199323Sjkim } 280199323Sjkim 281199323Sjkim return (NULL); /* Not found */ 282199323Sjkim} 283199323Sjkim 284199323Sjkim 285199323Sjkim/****************************************************************************** 286199323Sjkim * 287199323Sjkim * FUNCTION: AcpiNsRepair_ALR 288199323Sjkim * 289199323Sjkim * PARAMETERS: Data - Pointer to validation data structure 290199323Sjkim * ReturnObjectPtr - Pointer to the object returned from the 291199323Sjkim * evaluation of a method or object 292199323Sjkim * 293199323Sjkim * RETURN: Status. AE_OK if object is OK or was repaired successfully 294199323Sjkim * 295199323Sjkim * DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list 296199323Sjkim * ascending by the ambient illuminance values. 297199323Sjkim * 298199323Sjkim *****************************************************************************/ 299199323Sjkim 300199323Sjkimstatic ACPI_STATUS 301199323SjkimAcpiNsRepair_ALR ( 302199323Sjkim ACPI_PREDEFINED_DATA *Data, 303199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr) 304199323Sjkim{ 305199323Sjkim ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; 306199323Sjkim ACPI_STATUS Status; 307199323Sjkim 308199323Sjkim 309199323Sjkim Status = AcpiNsCheckSortedList (Data, ReturnObject, 2, 1, 310199323Sjkim ACPI_SORT_ASCENDING, "AmbientIlluminance"); 311199323Sjkim 312199323Sjkim return (Status); 313199323Sjkim} 314199323Sjkim 315199323Sjkim 316199323Sjkim/****************************************************************************** 317199323Sjkim * 318199323Sjkim * FUNCTION: AcpiNsRepair_TSS 319199323Sjkim * 320199323Sjkim * PARAMETERS: Data - Pointer to validation data structure 321199323Sjkim * ReturnObjectPtr - Pointer to the object returned from the 322199323Sjkim * evaluation of a method or object 323199323Sjkim * 324199323Sjkim * RETURN: Status. AE_OK if object is OK or was repaired successfully 325199323Sjkim * 326199323Sjkim * DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list 327199323Sjkim * descending by the power dissipation values. 328199323Sjkim * 329199323Sjkim *****************************************************************************/ 330199323Sjkim 331199323Sjkimstatic ACPI_STATUS 332199323SjkimAcpiNsRepair_TSS ( 333199323Sjkim ACPI_PREDEFINED_DATA *Data, 334199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr) 335199323Sjkim{ 336199323Sjkim ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; 337199323Sjkim ACPI_STATUS Status; 338199323Sjkim 339199323Sjkim 340199323Sjkim Status = AcpiNsCheckSortedList (Data, ReturnObject, 5, 1, 341199323Sjkim ACPI_SORT_DESCENDING, "PowerDissipation"); 342199323Sjkim 343199323Sjkim return (Status); 344199323Sjkim} 345199323Sjkim 346199323Sjkim 347199323Sjkim/****************************************************************************** 348199323Sjkim * 349199323Sjkim * FUNCTION: AcpiNsRepair_PSS 350199323Sjkim * 351199323Sjkim * PARAMETERS: Data - Pointer to validation data structure 352199323Sjkim * ReturnObjectPtr - Pointer to the object returned from the 353199323Sjkim * evaluation of a method or object 354199323Sjkim * 355199323Sjkim * RETURN: Status. AE_OK if object is OK or was repaired successfully 356199323Sjkim * 357199323Sjkim * DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list 358199323Sjkim * by the CPU frequencies. Check that the power dissipation values 359199323Sjkim * are all proportional to CPU frequency (i.e., sorting by 360199323Sjkim * frequency should be the same as sorting by power.) 361199323Sjkim * 362199323Sjkim *****************************************************************************/ 363199323Sjkim 364199323Sjkimstatic ACPI_STATUS 365199323SjkimAcpiNsRepair_PSS ( 366199323Sjkim ACPI_PREDEFINED_DATA *Data, 367199323Sjkim ACPI_OPERAND_OBJECT **ReturnObjectPtr) 368199323Sjkim{ 369199323Sjkim ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; 370199323Sjkim ACPI_OPERAND_OBJECT **OuterElements; 371199323Sjkim UINT32 OuterElementCount; 372199323Sjkim ACPI_OPERAND_OBJECT **Elements; 373199323Sjkim ACPI_OPERAND_OBJECT *ObjDesc; 374199323Sjkim UINT32 PreviousValue; 375199323Sjkim ACPI_STATUS Status; 376199323Sjkim UINT32 i; 377199323Sjkim 378199323Sjkim 379199323Sjkim /* 380199323Sjkim * Entries (sub-packages) in the _PSS Package must be sorted by power 381199323Sjkim * dissipation, in descending order. If it appears that the list is 382199323Sjkim * incorrectly sorted, sort it. We sort by CpuFrequency, since this 383199323Sjkim * should be proportional to the power. 384199323Sjkim */ 385199323Sjkim Status =AcpiNsCheckSortedList (Data, ReturnObject, 6, 0, 386199323Sjkim ACPI_SORT_DESCENDING, "CpuFrequency"); 387199323Sjkim if (ACPI_FAILURE (Status)) 388199323Sjkim { 389199323Sjkim return (Status); 390199323Sjkim } 391199323Sjkim 392199323Sjkim /* 393199323Sjkim * We now know the list is correctly sorted by CPU frequency. Check if 394199323Sjkim * the power dissipation values are proportional. 395199323Sjkim */ 396199323Sjkim PreviousValue = ACPI_UINT32_MAX; 397199323Sjkim OuterElements = ReturnObject->Package.Elements; 398199323Sjkim OuterElementCount = ReturnObject->Package.Count; 399199323Sjkim 400199323Sjkim for (i = 0; i < OuterElementCount; i++) 401199323Sjkim { 402199323Sjkim Elements = (*OuterElements)->Package.Elements; 403199323Sjkim ObjDesc = Elements[1]; /* Index1 = PowerDissipation */ 404199323Sjkim 405199323Sjkim if ((UINT32) ObjDesc->Integer.Value > PreviousValue) 406199323Sjkim { 407199323Sjkim ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags, 408199323Sjkim "SubPackage[%u,%u] - suspicious power dissipation values", 409199323Sjkim i-1, i)); 410199323Sjkim } 411199323Sjkim 412199323Sjkim PreviousValue = (UINT32) ObjDesc->Integer.Value; 413199323Sjkim OuterElements++; 414199323Sjkim } 415199323Sjkim 416199323Sjkim return (AE_OK); 417199323Sjkim} 418199323Sjkim 419199323Sjkim 420199323Sjkim/****************************************************************************** 421199323Sjkim * 422199323Sjkim * FUNCTION: AcpiNsCheckSortedList 423199323Sjkim * 424199323Sjkim * PARAMETERS: Data - Pointer to validation data structure 425199323Sjkim * ReturnObject - Pointer to the top-level returned object 426199323Sjkim * ExpectedCount - Minimum length of each sub-package 427199323Sjkim * SortIndex - Sub-package entry to sort on 428199323Sjkim * SortDirection - Ascending or descending 429199323Sjkim * SortKeyName - Name of the SortIndex field 430199323Sjkim * 431199323Sjkim * RETURN: Status. AE_OK if the list is valid and is sorted correctly or 432199323Sjkim * has been repaired by sorting the list. 433199323Sjkim * 434199323Sjkim * DESCRIPTION: Check if the package list is valid and sorted correctly by the 435199323Sjkim * SortIndex. If not, then sort the list. 436199323Sjkim * 437199323Sjkim *****************************************************************************/ 438199323Sjkim 439199323Sjkimstatic ACPI_STATUS 440199323SjkimAcpiNsCheckSortedList ( 441199323Sjkim ACPI_PREDEFINED_DATA *Data, 442199323Sjkim ACPI_OPERAND_OBJECT *ReturnObject, 443199323Sjkim UINT32 ExpectedCount, 444199323Sjkim UINT32 SortIndex, 445199323Sjkim UINT8 SortDirection, 446199323Sjkim char *SortKeyName) 447199323Sjkim{ 448199323Sjkim UINT32 OuterElementCount; 449199323Sjkim ACPI_OPERAND_OBJECT **OuterElements; 450199323Sjkim ACPI_OPERAND_OBJECT **Elements; 451199323Sjkim ACPI_OPERAND_OBJECT *ObjDesc; 452199323Sjkim UINT32 i; 453199323Sjkim UINT32 PreviousValue; 454199323Sjkim ACPI_STATUS Status; 455199323Sjkim 456199323Sjkim 457199323Sjkim /* The top-level object must be a package */ 458199323Sjkim 459199323Sjkim if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) 460199323Sjkim { 461199323Sjkim return (AE_AML_OPERAND_TYPE); 462199323Sjkim } 463199323Sjkim 464199323Sjkim /* 465199323Sjkim * Detect any NULL package elements and remove them from the 466199323Sjkim * package. 467199323Sjkim * 468199323Sjkim * TBD: We may want to do this for all predefined names that 469199323Sjkim * return a variable-length package of packages. 470199323Sjkim */ 471199323Sjkim Status = AcpiNsRemoveNullElements (ReturnObject); 472199323Sjkim if (Status == AE_NULL_ENTRY) 473199323Sjkim { 474199323Sjkim ACPI_INFO_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags, 475199323Sjkim "NULL elements removed from package")); 476199323Sjkim 477199323Sjkim /* Exit if package is now zero length */ 478199323Sjkim 479199323Sjkim if (!ReturnObject->Package.Count) 480199323Sjkim { 481199323Sjkim return (AE_NULL_ENTRY); 482199323Sjkim } 483199323Sjkim } 484199323Sjkim 485199323Sjkim OuterElements = ReturnObject->Package.Elements; 486199323Sjkim OuterElementCount = ReturnObject->Package.Count; 487199323Sjkim if (!OuterElementCount) 488199323Sjkim { 489199323Sjkim return (AE_AML_PACKAGE_LIMIT); 490199323Sjkim } 491199323Sjkim 492199323Sjkim PreviousValue = 0; 493199323Sjkim if (SortDirection == ACPI_SORT_DESCENDING) 494199323Sjkim { 495199323Sjkim PreviousValue = ACPI_UINT32_MAX; 496199323Sjkim } 497199323Sjkim 498199323Sjkim /* Examine each subpackage */ 499199323Sjkim 500199323Sjkim for (i = 0; i < OuterElementCount; i++) 501199323Sjkim { 502199323Sjkim /* Each element of the top-level package must also be a package */ 503199323Sjkim 504199323Sjkim if ((*OuterElements)->Common.Type != ACPI_TYPE_PACKAGE) 505199323Sjkim { 506199323Sjkim return (AE_AML_OPERAND_TYPE); 507199323Sjkim } 508199323Sjkim 509199323Sjkim /* Each sub-package must have the minimum length */ 510199323Sjkim 511199323Sjkim if ((*OuterElements)->Package.Count < ExpectedCount) 512199323Sjkim { 513199323Sjkim return (AE_AML_PACKAGE_LIMIT); 514199323Sjkim } 515199323Sjkim 516199323Sjkim Elements = (*OuterElements)->Package.Elements; 517199323Sjkim ObjDesc = Elements[SortIndex]; 518199323Sjkim 519199323Sjkim if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER) 520199323Sjkim { 521199323Sjkim return (AE_AML_OPERAND_TYPE); 522199323Sjkim } 523199323Sjkim 524199323Sjkim /* 525199323Sjkim * The list must be sorted in the specified order. If we detect a 526199323Sjkim * discrepancy, issue a warning and sort the entire list 527199323Sjkim */ 528199323Sjkim if (((SortDirection == ACPI_SORT_ASCENDING) && 529199323Sjkim (ObjDesc->Integer.Value < PreviousValue)) || 530199323Sjkim ((SortDirection == ACPI_SORT_DESCENDING) && 531199323Sjkim (ObjDesc->Integer.Value > PreviousValue))) 532199323Sjkim { 533199323Sjkim Status = AcpiNsSortList (ReturnObject->Package.Elements, 534199323Sjkim OuterElementCount, SortIndex, SortDirection); 535199323Sjkim if (ACPI_FAILURE (Status)) 536199323Sjkim { 537199323Sjkim return (Status); 538199323Sjkim } 539199323Sjkim 540199323Sjkim Data->Flags |= ACPI_OBJECT_REPAIRED; 541199323Sjkim 542199323Sjkim ACPI_INFO_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags, 543199323Sjkim "Repaired unsorted list - now sorted by %s", SortKeyName)); 544199323Sjkim return (AE_OK); 545199323Sjkim } 546199323Sjkim 547199323Sjkim PreviousValue = (UINT32) ObjDesc->Integer.Value; 548199323Sjkim OuterElements++; 549199323Sjkim } 550199323Sjkim 551199323Sjkim return (AE_OK); 552199323Sjkim} 553199323Sjkim 554199323Sjkim 555199323Sjkim/****************************************************************************** 556199323Sjkim * 557199323Sjkim * FUNCTION: AcpiNsRemoveNullElements 558199323Sjkim * 559199323Sjkim * PARAMETERS: ObjDesc - A Package object 560199323Sjkim * 561199323Sjkim * RETURN: Status. AE_NULL_ENTRY means that one or more elements were 562199323Sjkim * removed. 563199323Sjkim * 564199323Sjkim * DESCRIPTION: Remove all NULL package elements and update the package count. 565199323Sjkim * 566199323Sjkim *****************************************************************************/ 567199323Sjkim 568199323Sjkimstatic ACPI_STATUS 569199323SjkimAcpiNsRemoveNullElements ( 570199323Sjkim ACPI_OPERAND_OBJECT *ObjDesc) 571199323Sjkim{ 572199323Sjkim ACPI_OPERAND_OBJECT **Source; 573199323Sjkim ACPI_OPERAND_OBJECT **Dest; 574199323Sjkim ACPI_STATUS Status = AE_OK; 575199323Sjkim UINT32 Count; 576199323Sjkim UINT32 NewCount; 577199323Sjkim UINT32 i; 578199323Sjkim 579199323Sjkim 580199323Sjkim Count = ObjDesc->Package.Count; 581199323Sjkim NewCount = Count; 582199323Sjkim 583199323Sjkim Source = ObjDesc->Package.Elements; 584199323Sjkim Dest = Source; 585199323Sjkim 586199323Sjkim /* Examine all elements of the package object */ 587199323Sjkim 588199323Sjkim for (i = 0; i < Count; i++) 589199323Sjkim { 590199323Sjkim if (!*Source) 591199323Sjkim { 592199323Sjkim Status = AE_NULL_ENTRY; 593199323Sjkim NewCount--; 594199323Sjkim } 595199323Sjkim else 596199323Sjkim { 597199323Sjkim *Dest = *Source; 598199323Sjkim Dest++; 599199323Sjkim } 600199323Sjkim Source++; 601199323Sjkim } 602199323Sjkim 603199323Sjkim if (Status == AE_NULL_ENTRY) 604199323Sjkim { 605199323Sjkim /* NULL terminate list and update the package count */ 606199323Sjkim 607199323Sjkim *Dest = NULL; 608199323Sjkim ObjDesc->Package.Count = NewCount; 609199323Sjkim } 610199323Sjkim 611199323Sjkim return (Status); 612199323Sjkim} 613199323Sjkim 614199323Sjkim 615199323Sjkim/****************************************************************************** 616199323Sjkim * 617199323Sjkim * FUNCTION: AcpiNsSortList 618199323Sjkim * 619199323Sjkim * PARAMETERS: Elements - Package object element list 620199323Sjkim * Count - Element count for above 621199323Sjkim * Index - Sort by which package element 622199323Sjkim * SortDirection - Ascending or Descending sort 623199323Sjkim * 624199323Sjkim * RETURN: Status 625199323Sjkim * 626199323Sjkim * DESCRIPTION: Sort the objects that are in a package element list. 627199323Sjkim * 628199323Sjkim * NOTE: Assumes that all NULL elements have been removed from the package. 629199323Sjkim * 630199323Sjkim *****************************************************************************/ 631199323Sjkim 632199323Sjkimstatic ACPI_STATUS 633199323SjkimAcpiNsSortList ( 634199323Sjkim ACPI_OPERAND_OBJECT **Elements, 635199323Sjkim UINT32 Count, 636199323Sjkim UINT32 Index, 637199323Sjkim UINT8 SortDirection) 638199323Sjkim{ 639199323Sjkim ACPI_OPERAND_OBJECT *ObjDesc1; 640199323Sjkim ACPI_OPERAND_OBJECT *ObjDesc2; 641199323Sjkim ACPI_OPERAND_OBJECT *TempObj; 642199323Sjkim UINT32 i; 643199323Sjkim UINT32 j; 644199323Sjkim 645199323Sjkim 646199323Sjkim /* Simple bubble sort */ 647199323Sjkim 648199323Sjkim for (i = 1; i < Count; i++) 649199323Sjkim { 650199323Sjkim for (j = (Count - 1); j >= i; j--) 651199323Sjkim { 652199323Sjkim ObjDesc1 = Elements[j-1]->Package.Elements[Index]; 653199323Sjkim ObjDesc2 = Elements[j]->Package.Elements[Index]; 654199323Sjkim 655199323Sjkim if (((SortDirection == ACPI_SORT_ASCENDING) && 656199323Sjkim (ObjDesc1->Integer.Value > ObjDesc2->Integer.Value)) || 657199323Sjkim 658199323Sjkim ((SortDirection == ACPI_SORT_DESCENDING) && 659199323Sjkim (ObjDesc1->Integer.Value < ObjDesc2->Integer.Value))) 660199323Sjkim { 661199323Sjkim TempObj = Elements[j-1]; 662199323Sjkim Elements[j-1] = Elements[j]; 663199323Sjkim Elements[j] = TempObj; 664199323Sjkim } 665199323Sjkim } 666199323Sjkim } 667199323Sjkim 668199323Sjkim return (AE_OK); 669199323Sjkim} 670