| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: nsrepair2 - Repair for objects returned by specific |
| 4 | * predefined methods |
| 5 | * |
| 6 | *****************************************************************************/ |
| 7 | |
| 8 | /* |
| 9 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 10 | * All rights reserved. |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions |
| 14 | * are met: |
| 15 | * 1. Redistributions of source code must retain the above copyright |
| 16 | * notice, this list of conditions, and the following disclaimer, |
| 17 | * without modification. |
| 18 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 19 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 20 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 21 | * including a substantially similar Disclaimer requirement for further |
| 22 | * binary redistribution. |
| 23 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 24 | * of any contributors may be used to endorse or promote products derived |
| 25 | * from this software without specific prior written permission. |
| 26 | * |
| 27 | * Alternatively, this software may be distributed under the terms of the |
| 28 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 29 | * Software Foundation. |
| 30 | * |
| 31 | * NO WARRANTY |
| 32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 35 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 36 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 37 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 38 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 41 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 42 | * POSSIBILITY OF SUCH DAMAGES. |
| 43 | */ |
| 44 | |
| 45 | #include "acpi.h" |
| 46 | #include "accommon.h" |
| 47 | #include "acnamesp.h" |
| 48 | |
| 49 | #define _COMPONENT ACPI_NAMESPACE |
| 50 | ACPI_MODULE_NAME ("nsrepair2" ) |
| 51 | |
| 52 | |
| 53 | /* |
| 54 | * Information structure and handler for ACPI predefined names that can |
| 55 | * be repaired on a per-name basis. |
| 56 | */ |
| 57 | typedef |
| 58 | ACPI_STATUS (*ACPI_REPAIR_FUNCTION) ( |
| 59 | ACPI_EVALUATE_INFO *Info, |
| 60 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 61 | |
| 62 | typedef struct acpi_repair_info |
| 63 | { |
| 64 | char Name[ACPI_NAME_SIZE]; |
| 65 | ACPI_REPAIR_FUNCTION RepairFunction; |
| 66 | |
| 67 | } ACPI_REPAIR_INFO; |
| 68 | |
| 69 | |
| 70 | /* Local prototypes */ |
| 71 | |
| 72 | static const ACPI_REPAIR_INFO * |
| 73 | AcpiNsMatchComplexRepair ( |
| 74 | ACPI_NAMESPACE_NODE *Node); |
| 75 | |
| 76 | static ACPI_STATUS |
| 77 | AcpiNsRepair_ALR ( |
| 78 | ACPI_EVALUATE_INFO *Info, |
| 79 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 80 | |
| 81 | static ACPI_STATUS |
| 82 | AcpiNsRepair_CID ( |
| 83 | ACPI_EVALUATE_INFO *Info, |
| 84 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 85 | |
| 86 | static ACPI_STATUS |
| 87 | AcpiNsRepair_CST ( |
| 88 | ACPI_EVALUATE_INFO *Info, |
| 89 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 90 | |
| 91 | static ACPI_STATUS |
| 92 | AcpiNsRepair_FDE ( |
| 93 | ACPI_EVALUATE_INFO *Info, |
| 94 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 95 | |
| 96 | static ACPI_STATUS |
| 97 | AcpiNsRepair_HID ( |
| 98 | ACPI_EVALUATE_INFO *Info, |
| 99 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 100 | |
| 101 | static ACPI_STATUS |
| 102 | AcpiNsRepair_PRT ( |
| 103 | ACPI_EVALUATE_INFO *Info, |
| 104 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 105 | |
| 106 | static ACPI_STATUS |
| 107 | AcpiNsRepair_PSS ( |
| 108 | ACPI_EVALUATE_INFO *Info, |
| 109 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 110 | |
| 111 | static ACPI_STATUS |
| 112 | AcpiNsRepair_TSS ( |
| 113 | ACPI_EVALUATE_INFO *Info, |
| 114 | ACPI_OPERAND_OBJECT **ReturnObjectPtr); |
| 115 | |
| 116 | static ACPI_STATUS |
| 117 | AcpiNsCheckSortedList ( |
| 118 | ACPI_EVALUATE_INFO *Info, |
| 119 | ACPI_OPERAND_OBJECT *ReturnObject, |
| 120 | UINT32 StartIndex, |
| 121 | UINT32 ExpectedCount, |
| 122 | UINT32 SortIndex, |
| 123 | UINT8 SortDirection, |
| 124 | const char *SortKeyName); |
| 125 | |
| 126 | /* Values for SortDirection above */ |
| 127 | |
| 128 | #define ACPI_SORT_ASCENDING 0 |
| 129 | #define ACPI_SORT_DESCENDING 1 |
| 130 | |
| 131 | static void |
| 132 | AcpiNsRemoveElement ( |
| 133 | ACPI_OPERAND_OBJECT *ObjDesc, |
| 134 | UINT32 Index); |
| 135 | |
| 136 | static void |
| 137 | AcpiNsSortList ( |
| 138 | ACPI_OPERAND_OBJECT **Elements, |
| 139 | UINT32 Count, |
| 140 | UINT32 Index, |
| 141 | UINT8 SortDirection); |
| 142 | |
| 143 | |
| 144 | /* |
| 145 | * This table contains the names of the predefined methods for which we can |
| 146 | * perform more complex repairs. |
| 147 | * |
| 148 | * As necessary: |
| 149 | * |
| 150 | * _ALR: Sort the list ascending by AmbientIlluminance |
| 151 | * _CID: Strings: uppercase all, remove any leading asterisk |
| 152 | * _CST: Sort the list ascending by C state type |
| 153 | * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs |
| 154 | * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs |
| 155 | * _HID: Strings: uppercase all, remove any leading asterisk |
| 156 | * _PRT: Fix reversed SourceName and SourceIndex |
| 157 | * _PSS: Sort the list descending by Power |
| 158 | * _TSS: Sort the list descending by Power |
| 159 | * |
| 160 | * Names that must be packages, but cannot be sorted: |
| 161 | * |
| 162 | * _BCL: Values are tied to the Package index where they appear, and cannot |
| 163 | * be moved or sorted. These index values are used for _BQC and _BCM. |
| 164 | * However, we can fix the case where a buffer is returned, by converting |
| 165 | * it to a Package of integers. |
| 166 | */ |
| 167 | static const ACPI_REPAIR_INFO AcpiNsRepairableNames[] = |
| 168 | { |
| 169 | {"_ALR" , AcpiNsRepair_ALR}, |
| 170 | {"_CID" , AcpiNsRepair_CID}, |
| 171 | {"_CST" , AcpiNsRepair_CST}, |
| 172 | {"_FDE" , AcpiNsRepair_FDE}, |
| 173 | {"_GTM" , AcpiNsRepair_FDE}, /* _GTM has same repair as _FDE */ |
| 174 | {"_HID" , AcpiNsRepair_HID}, |
| 175 | {"_PRT" , AcpiNsRepair_PRT}, |
| 176 | {"_PSS" , AcpiNsRepair_PSS}, |
| 177 | {"_TSS" , AcpiNsRepair_TSS}, |
| 178 | {{0,0,0,0}, NULL} /* Table terminator */ |
| 179 | }; |
| 180 | |
| 181 | |
| 182 | #define ACPI_FDE_FIELD_COUNT 5 |
| 183 | #define ACPI_FDE_BYTE_BUFFER_SIZE 5 |
| 184 | #define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * sizeof (UINT32)) |
| 185 | |
| 186 | |
| 187 | /****************************************************************************** |
| 188 | * |
| 189 | * FUNCTION: AcpiNsComplexRepairs |
| 190 | * |
| 191 | * PARAMETERS: Info - Method execution information block |
| 192 | * Node - Namespace node for the method/object |
| 193 | * ValidateStatus - Original status of earlier validation |
| 194 | * ReturnObjectPtr - Pointer to the object returned from the |
| 195 | * evaluation of a method or object |
| 196 | * |
| 197 | * RETURN: Status. AE_OK if repair was successful. If name is not |
| 198 | * matched, ValidateStatus is returned. |
| 199 | * |
| 200 | * DESCRIPTION: Attempt to repair/convert a return object of a type that was |
| 201 | * not expected. |
| 202 | * |
| 203 | *****************************************************************************/ |
| 204 | |
| 205 | ACPI_STATUS |
| 206 | AcpiNsComplexRepairs ( |
| 207 | ACPI_EVALUATE_INFO *Info, |
| 208 | ACPI_NAMESPACE_NODE *Node, |
| 209 | ACPI_STATUS ValidateStatus, |
| 210 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 211 | { |
| 212 | const ACPI_REPAIR_INFO *Predefined; |
| 213 | ACPI_STATUS Status; |
| 214 | |
| 215 | |
| 216 | /* Check if this name is in the list of repairable names */ |
| 217 | |
| 218 | Predefined = AcpiNsMatchComplexRepair (Node); |
| 219 | if (!Predefined) |
| 220 | { |
| 221 | return (ValidateStatus); |
| 222 | } |
| 223 | |
| 224 | Status = Predefined->RepairFunction (Info, ReturnObjectPtr); |
| 225 | return (Status); |
| 226 | } |
| 227 | |
| 228 | |
| 229 | /****************************************************************************** |
| 230 | * |
| 231 | * FUNCTION: AcpiNsMatchComplexRepair |
| 232 | * |
| 233 | * PARAMETERS: Node - Namespace node for the method/object |
| 234 | * |
| 235 | * RETURN: Pointer to entry in repair table. NULL indicates not found. |
| 236 | * |
| 237 | * DESCRIPTION: Check an object name against the repairable object list. |
| 238 | * |
| 239 | *****************************************************************************/ |
| 240 | |
| 241 | static const ACPI_REPAIR_INFO * |
| 242 | AcpiNsMatchComplexRepair ( |
| 243 | ACPI_NAMESPACE_NODE *Node) |
| 244 | { |
| 245 | const ACPI_REPAIR_INFO *ThisName; |
| 246 | |
| 247 | |
| 248 | /* Search info table for a repairable predefined method/object name */ |
| 249 | |
| 250 | ThisName = AcpiNsRepairableNames; |
| 251 | while (ThisName->RepairFunction) |
| 252 | { |
| 253 | if (ACPI_COMPARE_NAME (Node->Name.Ascii, ThisName->Name)) |
| 254 | { |
| 255 | return (ThisName); |
| 256 | } |
| 257 | |
| 258 | ThisName++; |
| 259 | } |
| 260 | |
| 261 | return (NULL); /* Not found */ |
| 262 | } |
| 263 | |
| 264 | |
| 265 | /****************************************************************************** |
| 266 | * |
| 267 | * FUNCTION: AcpiNsRepair_ALR |
| 268 | * |
| 269 | * PARAMETERS: Info - Method execution information block |
| 270 | * ReturnObjectPtr - Pointer to the object returned from the |
| 271 | * evaluation of a method or object |
| 272 | * |
| 273 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 274 | * |
| 275 | * DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list |
| 276 | * ascending by the ambient illuminance values. |
| 277 | * |
| 278 | *****************************************************************************/ |
| 279 | |
| 280 | static ACPI_STATUS |
| 281 | AcpiNsRepair_ALR ( |
| 282 | ACPI_EVALUATE_INFO *Info, |
| 283 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 284 | { |
| 285 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 286 | ACPI_STATUS Status; |
| 287 | |
| 288 | |
| 289 | Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 2, 1, |
| 290 | ACPI_SORT_ASCENDING, "AmbientIlluminance" ); |
| 291 | |
| 292 | return (Status); |
| 293 | } |
| 294 | |
| 295 | |
| 296 | /****************************************************************************** |
| 297 | * |
| 298 | * FUNCTION: AcpiNsRepair_FDE |
| 299 | * |
| 300 | * PARAMETERS: Info - Method execution information block |
| 301 | * ReturnObjectPtr - Pointer to the object returned from the |
| 302 | * evaluation of a method or object |
| 303 | * |
| 304 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 305 | * |
| 306 | * DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return |
| 307 | * value is a Buffer of 5 DWORDs. This function repairs a common |
| 308 | * problem where the return value is a Buffer of BYTEs, not |
| 309 | * DWORDs. |
| 310 | * |
| 311 | *****************************************************************************/ |
| 312 | |
| 313 | static ACPI_STATUS |
| 314 | AcpiNsRepair_FDE ( |
| 315 | ACPI_EVALUATE_INFO *Info, |
| 316 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 317 | { |
| 318 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 319 | ACPI_OPERAND_OBJECT *BufferObject; |
| 320 | UINT8 *ByteBuffer; |
| 321 | UINT32 *DwordBuffer; |
| 322 | UINT32 i; |
| 323 | |
| 324 | |
| 325 | ACPI_FUNCTION_NAME (NsRepair_FDE); |
| 326 | |
| 327 | |
| 328 | switch (ReturnObject->Common.Type) |
| 329 | { |
| 330 | case ACPI_TYPE_BUFFER: |
| 331 | |
| 332 | /* This is the expected type. Length should be (at least) 5 DWORDs */ |
| 333 | |
| 334 | if (ReturnObject->Buffer.Length >= ACPI_FDE_DWORD_BUFFER_SIZE) |
| 335 | { |
| 336 | return (AE_OK); |
| 337 | } |
| 338 | |
| 339 | /* We can only repair if we have exactly 5 BYTEs */ |
| 340 | |
| 341 | if (ReturnObject->Buffer.Length != ACPI_FDE_BYTE_BUFFER_SIZE) |
| 342 | { |
| 343 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 344 | Info->FullPathname, Info->NodeFlags, |
| 345 | "Incorrect return buffer length %u, expected %u" , |
| 346 | ReturnObject->Buffer.Length, ACPI_FDE_DWORD_BUFFER_SIZE)); |
| 347 | |
| 348 | return (AE_AML_OPERAND_TYPE); |
| 349 | } |
| 350 | |
| 351 | /* Create the new (larger) buffer object */ |
| 352 | |
| 353 | BufferObject = AcpiUtCreateBufferObject ( |
| 354 | ACPI_FDE_DWORD_BUFFER_SIZE); |
| 355 | if (!BufferObject) |
| 356 | { |
| 357 | return (AE_NO_MEMORY); |
| 358 | } |
| 359 | |
| 360 | /* Expand each byte to a DWORD */ |
| 361 | |
| 362 | ByteBuffer = ReturnObject->Buffer.Pointer; |
| 363 | DwordBuffer = ACPI_CAST_PTR (UINT32, |
| 364 | BufferObject->Buffer.Pointer); |
| 365 | |
| 366 | for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) |
| 367 | { |
| 368 | *DwordBuffer = (UINT32) *ByteBuffer; |
| 369 | DwordBuffer++; |
| 370 | ByteBuffer++; |
| 371 | } |
| 372 | |
| 373 | ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| 374 | "%s Expanded Byte Buffer to expected DWord Buffer\n" , |
| 375 | Info->FullPathname)); |
| 376 | break; |
| 377 | |
| 378 | default: |
| 379 | |
| 380 | return (AE_AML_OPERAND_TYPE); |
| 381 | } |
| 382 | |
| 383 | /* Delete the original return object, return the new buffer object */ |
| 384 | |
| 385 | AcpiUtRemoveReference (ReturnObject); |
| 386 | *ReturnObjectPtr = BufferObject; |
| 387 | |
| 388 | Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| 389 | return (AE_OK); |
| 390 | } |
| 391 | |
| 392 | |
| 393 | /****************************************************************************** |
| 394 | * |
| 395 | * FUNCTION: AcpiNsRepair_CID |
| 396 | * |
| 397 | * PARAMETERS: Info - Method execution information block |
| 398 | * ReturnObjectPtr - Pointer to the object returned from the |
| 399 | * evaluation of a method or object |
| 400 | * |
| 401 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 402 | * |
| 403 | * DESCRIPTION: Repair for the _CID object. If a string, ensure that all |
| 404 | * letters are uppercase and that there is no leading asterisk. |
| 405 | * If a Package, ensure same for all string elements. |
| 406 | * |
| 407 | *****************************************************************************/ |
| 408 | |
| 409 | static ACPI_STATUS |
| 410 | AcpiNsRepair_CID ( |
| 411 | ACPI_EVALUATE_INFO *Info, |
| 412 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 413 | { |
| 414 | ACPI_STATUS Status; |
| 415 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 416 | ACPI_OPERAND_OBJECT **ElementPtr; |
| 417 | ACPI_OPERAND_OBJECT *OriginalElement; |
| 418 | UINT16 OriginalRefCount; |
| 419 | UINT32 i; |
| 420 | |
| 421 | |
| 422 | /* Check for _CID as a simple string */ |
| 423 | |
| 424 | if (ReturnObject->Common.Type == ACPI_TYPE_STRING) |
| 425 | { |
| 426 | Status = AcpiNsRepair_HID (Info, ReturnObjectPtr); |
| 427 | return (Status); |
| 428 | } |
| 429 | |
| 430 | /* Exit if not a Package */ |
| 431 | |
| 432 | if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) |
| 433 | { |
| 434 | return (AE_OK); |
| 435 | } |
| 436 | |
| 437 | /* Examine each element of the _CID package */ |
| 438 | |
| 439 | ElementPtr = ReturnObject->Package.Elements; |
| 440 | for (i = 0; i < ReturnObject->Package.Count; i++) |
| 441 | { |
| 442 | OriginalElement = *ElementPtr; |
| 443 | OriginalRefCount = OriginalElement->Common.ReferenceCount; |
| 444 | |
| 445 | Status = AcpiNsRepair_HID (Info, ElementPtr); |
| 446 | if (ACPI_FAILURE (Status)) |
| 447 | { |
| 448 | return (Status); |
| 449 | } |
| 450 | |
| 451 | /* Take care with reference counts */ |
| 452 | |
| 453 | if (OriginalElement != *ElementPtr) |
| 454 | { |
| 455 | /* Element was replaced */ |
| 456 | |
| 457 | (*ElementPtr)->Common.ReferenceCount = |
| 458 | OriginalRefCount; |
| 459 | |
| 460 | AcpiUtRemoveReference (OriginalElement); |
| 461 | } |
| 462 | |
| 463 | ElementPtr++; |
| 464 | } |
| 465 | |
| 466 | return (AE_OK); |
| 467 | } |
| 468 | |
| 469 | |
| 470 | /****************************************************************************** |
| 471 | * |
| 472 | * FUNCTION: AcpiNsRepair_CST |
| 473 | * |
| 474 | * PARAMETERS: Info - Method execution information block |
| 475 | * ReturnObjectPtr - Pointer to the object returned from the |
| 476 | * evaluation of a method or object |
| 477 | * |
| 478 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 479 | * |
| 480 | * DESCRIPTION: Repair for the _CST object: |
| 481 | * 1. Sort the list ascending by C state type |
| 482 | * 2. Ensure type cannot be zero |
| 483 | * 3. A subpackage count of zero means _CST is meaningless |
| 484 | * 4. Count must match the number of C state subpackages |
| 485 | * |
| 486 | *****************************************************************************/ |
| 487 | |
| 488 | static ACPI_STATUS |
| 489 | AcpiNsRepair_CST ( |
| 490 | ACPI_EVALUATE_INFO *Info, |
| 491 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 492 | { |
| 493 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 494 | ACPI_OPERAND_OBJECT **OuterElements; |
| 495 | UINT32 OuterElementCount; |
| 496 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 497 | ACPI_STATUS Status; |
| 498 | BOOLEAN Removing; |
| 499 | UINT32 i; |
| 500 | |
| 501 | |
| 502 | ACPI_FUNCTION_NAME (NsRepair_CST); |
| 503 | |
| 504 | |
| 505 | /* |
| 506 | * Check if the C-state type values are proportional. |
| 507 | */ |
| 508 | OuterElementCount = ReturnObject->Package.Count - 1; |
| 509 | i = 0; |
| 510 | while (i < OuterElementCount) |
| 511 | { |
| 512 | OuterElements = &ReturnObject->Package.Elements[i + 1]; |
| 513 | Removing = FALSE; |
| 514 | |
| 515 | if ((*OuterElements)->Package.Count == 0) |
| 516 | { |
| 517 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 518 | Info->FullPathname, Info->NodeFlags, |
| 519 | "SubPackage[%u] - removing entry due to zero count" , i)); |
| 520 | Removing = TRUE; |
| 521 | goto RemoveElement; |
| 522 | } |
| 523 | |
| 524 | ObjDesc = (*OuterElements)->Package.Elements[1]; /* Index1 = Type */ |
| 525 | if ((UINT32) ObjDesc->Integer.Value == 0) |
| 526 | { |
| 527 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 528 | Info->FullPathname, Info->NodeFlags, |
| 529 | "SubPackage[%u] - removing entry due to invalid Type(0)" , i)); |
| 530 | Removing = TRUE; |
| 531 | } |
| 532 | |
| 533 | RemoveElement: |
| 534 | if (Removing) |
| 535 | { |
| 536 | AcpiNsRemoveElement (ReturnObject, i + 1); |
| 537 | OuterElementCount--; |
| 538 | } |
| 539 | else |
| 540 | { |
| 541 | i++; |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | /* Update top-level package count, Type "Integer" checked elsewhere */ |
| 546 | |
| 547 | ObjDesc = ReturnObject->Package.Elements[0]; |
| 548 | ObjDesc->Integer.Value = OuterElementCount; |
| 549 | |
| 550 | /* |
| 551 | * Entries (subpackages) in the _CST Package must be sorted by the |
| 552 | * C-state type, in ascending order. |
| 553 | */ |
| 554 | Status = AcpiNsCheckSortedList (Info, ReturnObject, 1, 4, 1, |
| 555 | ACPI_SORT_ASCENDING, "C-State Type" ); |
| 556 | if (ACPI_FAILURE (Status)) |
| 557 | { |
| 558 | return (Status); |
| 559 | } |
| 560 | |
| 561 | return (AE_OK); |
| 562 | } |
| 563 | |
| 564 | |
| 565 | /****************************************************************************** |
| 566 | * |
| 567 | * FUNCTION: AcpiNsRepair_HID |
| 568 | * |
| 569 | * PARAMETERS: Info - Method execution information block |
| 570 | * ReturnObjectPtr - Pointer to the object returned from the |
| 571 | * evaluation of a method or object |
| 572 | * |
| 573 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 574 | * |
| 575 | * DESCRIPTION: Repair for the _HID object. If a string, ensure that all |
| 576 | * letters are uppercase and that there is no leading asterisk. |
| 577 | * |
| 578 | *****************************************************************************/ |
| 579 | |
| 580 | static ACPI_STATUS |
| 581 | AcpiNsRepair_HID ( |
| 582 | ACPI_EVALUATE_INFO *Info, |
| 583 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 584 | { |
| 585 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 586 | ACPI_OPERAND_OBJECT *NewString; |
| 587 | char *Source; |
| 588 | char *Dest; |
| 589 | |
| 590 | |
| 591 | ACPI_FUNCTION_NAME (NsRepair_HID); |
| 592 | |
| 593 | |
| 594 | /* We only care about string _HID objects (not integers) */ |
| 595 | |
| 596 | if (ReturnObject->Common.Type != ACPI_TYPE_STRING) |
| 597 | { |
| 598 | return (AE_OK); |
| 599 | } |
| 600 | |
| 601 | if (ReturnObject->String.Length == 0) |
| 602 | { |
| 603 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 604 | Info->FullPathname, Info->NodeFlags, |
| 605 | "Invalid zero-length _HID or _CID string" )); |
| 606 | |
| 607 | /* Return AE_OK anyway, let driver handle it */ |
| 608 | |
| 609 | Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| 610 | return (AE_OK); |
| 611 | } |
| 612 | |
| 613 | /* It is simplest to always create a new string object */ |
| 614 | |
| 615 | NewString = AcpiUtCreateStringObject (ReturnObject->String.Length); |
| 616 | if (!NewString) |
| 617 | { |
| 618 | return (AE_NO_MEMORY); |
| 619 | } |
| 620 | |
| 621 | /* |
| 622 | * Remove a leading asterisk if present. For some unknown reason, there |
| 623 | * are many machines in the field that contains IDs like this. |
| 624 | * |
| 625 | * Examples: "*PNP0C03", "*ACPI0003" |
| 626 | */ |
| 627 | Source = ReturnObject->String.Pointer; |
| 628 | if (*Source == '*') |
| 629 | { |
| 630 | Source++; |
| 631 | NewString->String.Length--; |
| 632 | |
| 633 | ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| 634 | "%s: Removed invalid leading asterisk\n" , Info->FullPathname)); |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * Copy and uppercase the string. From the ACPI 5.0 specification: |
| 639 | * |
| 640 | * A valid PNP ID must be of the form "AAA####" where A is an uppercase |
| 641 | * letter and # is a hex digit. A valid ACPI ID must be of the form |
| 642 | * "NNNN####" where N is an uppercase letter or decimal digit, and |
| 643 | * # is a hex digit. |
| 644 | */ |
| 645 | for (Dest = NewString->String.Pointer; *Source; Dest++, Source++) |
| 646 | { |
| 647 | *Dest = (char) toupper ((int) *Source); |
| 648 | } |
| 649 | |
| 650 | AcpiUtRemoveReference (ReturnObject); |
| 651 | *ReturnObjectPtr = NewString; |
| 652 | return (AE_OK); |
| 653 | } |
| 654 | |
| 655 | |
| 656 | /****************************************************************************** |
| 657 | * |
| 658 | * FUNCTION: AcpiNsRepair_PRT |
| 659 | * |
| 660 | * PARAMETERS: Info - Method execution information block |
| 661 | * ReturnObjectPtr - Pointer to the object returned from the |
| 662 | * evaluation of a method or object |
| 663 | * |
| 664 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 665 | * |
| 666 | * DESCRIPTION: Repair for the _PRT object. If necessary, fix reversed |
| 667 | * SourceName and SourceIndex field, a common BIOS bug. |
| 668 | * |
| 669 | *****************************************************************************/ |
| 670 | |
| 671 | static ACPI_STATUS |
| 672 | AcpiNsRepair_PRT ( |
| 673 | ACPI_EVALUATE_INFO *Info, |
| 674 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 675 | { |
| 676 | ACPI_OPERAND_OBJECT *PackageObject = *ReturnObjectPtr; |
| 677 | ACPI_OPERAND_OBJECT **TopObjectList; |
| 678 | ACPI_OPERAND_OBJECT **SubObjectList; |
| 679 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 680 | ACPI_OPERAND_OBJECT *SubPackage; |
| 681 | UINT32 ElementCount; |
| 682 | UINT32 Index; |
| 683 | |
| 684 | |
| 685 | /* Each element in the _PRT package is a subpackage */ |
| 686 | |
| 687 | TopObjectList = PackageObject->Package.Elements; |
| 688 | ElementCount = PackageObject->Package.Count; |
| 689 | |
| 690 | /* Examine each subpackage */ |
| 691 | |
| 692 | for (Index = 0; Index < ElementCount; Index++, TopObjectList++) |
| 693 | { |
| 694 | SubPackage = *TopObjectList; |
| 695 | SubObjectList = SubPackage->Package.Elements; |
| 696 | |
| 697 | /* Check for minimum required element count */ |
| 698 | |
| 699 | if (SubPackage->Package.Count < 4) |
| 700 | { |
| 701 | continue; |
| 702 | } |
| 703 | |
| 704 | /* |
| 705 | * If the BIOS has erroneously reversed the _PRT SourceName (index 2) |
| 706 | * and the SourceIndex (index 3), fix it. _PRT is important enough to |
| 707 | * workaround this BIOS error. This also provides compatibility with |
| 708 | * other ACPI implementations. |
| 709 | */ |
| 710 | ObjDesc = SubObjectList[3]; |
| 711 | if (!ObjDesc || (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)) |
| 712 | { |
| 713 | SubObjectList[3] = SubObjectList[2]; |
| 714 | SubObjectList[2] = ObjDesc; |
| 715 | Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| 716 | |
| 717 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 718 | Info->FullPathname, Info->NodeFlags, |
| 719 | "PRT[%X]: Fixed reversed SourceName and SourceIndex" , |
| 720 | Index)); |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | return (AE_OK); |
| 725 | } |
| 726 | |
| 727 | |
| 728 | /****************************************************************************** |
| 729 | * |
| 730 | * FUNCTION: AcpiNsRepair_PSS |
| 731 | * |
| 732 | * PARAMETERS: Info - Method execution information block |
| 733 | * ReturnObjectPtr - Pointer to the object returned from the |
| 734 | * evaluation of a method or object |
| 735 | * |
| 736 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 737 | * |
| 738 | * DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list |
| 739 | * by the CPU frequencies. Check that the power dissipation values |
| 740 | * are all proportional to CPU frequency (i.e., sorting by |
| 741 | * frequency should be the same as sorting by power.) |
| 742 | * |
| 743 | *****************************************************************************/ |
| 744 | |
| 745 | static ACPI_STATUS |
| 746 | AcpiNsRepair_PSS ( |
| 747 | ACPI_EVALUATE_INFO *Info, |
| 748 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 749 | { |
| 750 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 751 | ACPI_OPERAND_OBJECT **OuterElements; |
| 752 | UINT32 OuterElementCount; |
| 753 | ACPI_OPERAND_OBJECT **Elements; |
| 754 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 755 | UINT32 PreviousValue; |
| 756 | ACPI_STATUS Status; |
| 757 | UINT32 i; |
| 758 | |
| 759 | |
| 760 | /* |
| 761 | * Entries (subpackages) in the _PSS Package must be sorted by power |
| 762 | * dissipation, in descending order. If it appears that the list is |
| 763 | * incorrectly sorted, sort it. We sort by CpuFrequency, since this |
| 764 | * should be proportional to the power. |
| 765 | */ |
| 766 | Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 6, 0, |
| 767 | ACPI_SORT_DESCENDING, "CpuFrequency" ); |
| 768 | if (ACPI_FAILURE (Status)) |
| 769 | { |
| 770 | return (Status); |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * We now know the list is correctly sorted by CPU frequency. Check if |
| 775 | * the power dissipation values are proportional. |
| 776 | */ |
| 777 | PreviousValue = ACPI_UINT32_MAX; |
| 778 | OuterElements = ReturnObject->Package.Elements; |
| 779 | OuterElementCount = ReturnObject->Package.Count; |
| 780 | |
| 781 | for (i = 0; i < OuterElementCount; i++) |
| 782 | { |
| 783 | Elements = (*OuterElements)->Package.Elements; |
| 784 | ObjDesc = Elements[1]; /* Index1 = PowerDissipation */ |
| 785 | |
| 786 | if ((UINT32) ObjDesc->Integer.Value > PreviousValue) |
| 787 | { |
| 788 | ACPI_WARN_PREDEFINED ((AE_INFO, |
| 789 | Info->FullPathname, Info->NodeFlags, |
| 790 | "SubPackage[%u,%u] - suspicious power dissipation values" , |
| 791 | i-1, i)); |
| 792 | } |
| 793 | |
| 794 | PreviousValue = (UINT32) ObjDesc->Integer.Value; |
| 795 | OuterElements++; |
| 796 | } |
| 797 | |
| 798 | return (AE_OK); |
| 799 | } |
| 800 | |
| 801 | |
| 802 | /****************************************************************************** |
| 803 | * |
| 804 | * FUNCTION: AcpiNsRepair_TSS |
| 805 | * |
| 806 | * PARAMETERS: Info - Method execution information block |
| 807 | * ReturnObjectPtr - Pointer to the object returned from the |
| 808 | * evaluation of a method or object |
| 809 | * |
| 810 | * RETURN: Status. AE_OK if object is OK or was repaired successfully |
| 811 | * |
| 812 | * DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list |
| 813 | * descending by the power dissipation values. |
| 814 | * |
| 815 | *****************************************************************************/ |
| 816 | |
| 817 | static ACPI_STATUS |
| 818 | AcpiNsRepair_TSS ( |
| 819 | ACPI_EVALUATE_INFO *Info, |
| 820 | ACPI_OPERAND_OBJECT **ReturnObjectPtr) |
| 821 | { |
| 822 | ACPI_OPERAND_OBJECT *ReturnObject = *ReturnObjectPtr; |
| 823 | ACPI_STATUS Status; |
| 824 | ACPI_NAMESPACE_NODE *Node; |
| 825 | |
| 826 | |
| 827 | /* |
| 828 | * We can only sort the _TSS return package if there is no _PSS in the |
| 829 | * same scope. This is because if _PSS is present, the ACPI specification |
| 830 | * dictates that the _TSS Power Dissipation field is to be ignored, and |
| 831 | * therefore some BIOSs leave garbage values in the _TSS Power field(s). |
| 832 | * In this case, it is best to just return the _TSS package as-is. |
| 833 | * (May, 2011) |
| 834 | */ |
| 835 | Status = AcpiNsGetNode (Info->Node, "^_PSS" , |
| 836 | ACPI_NS_NO_UPSEARCH, &Node); |
| 837 | if (ACPI_SUCCESS (Status)) |
| 838 | { |
| 839 | return (AE_OK); |
| 840 | } |
| 841 | |
| 842 | Status = AcpiNsCheckSortedList (Info, ReturnObject, 0, 5, 1, |
| 843 | ACPI_SORT_DESCENDING, "PowerDissipation" ); |
| 844 | |
| 845 | return (Status); |
| 846 | } |
| 847 | |
| 848 | |
| 849 | /****************************************************************************** |
| 850 | * |
| 851 | * FUNCTION: AcpiNsCheckSortedList |
| 852 | * |
| 853 | * PARAMETERS: Info - Method execution information block |
| 854 | * ReturnObject - Pointer to the top-level returned object |
| 855 | * StartIndex - Index of the first subpackage |
| 856 | * ExpectedCount - Minimum length of each subpackage |
| 857 | * SortIndex - Subpackage entry to sort on |
| 858 | * SortDirection - Ascending or descending |
| 859 | * SortKeyName - Name of the SortIndex field |
| 860 | * |
| 861 | * RETURN: Status. AE_OK if the list is valid and is sorted correctly or |
| 862 | * has been repaired by sorting the list. |
| 863 | * |
| 864 | * DESCRIPTION: Check if the package list is valid and sorted correctly by the |
| 865 | * SortIndex. If not, then sort the list. |
| 866 | * |
| 867 | *****************************************************************************/ |
| 868 | |
| 869 | static ACPI_STATUS |
| 870 | AcpiNsCheckSortedList ( |
| 871 | ACPI_EVALUATE_INFO *Info, |
| 872 | ACPI_OPERAND_OBJECT *ReturnObject, |
| 873 | UINT32 StartIndex, |
| 874 | UINT32 ExpectedCount, |
| 875 | UINT32 SortIndex, |
| 876 | UINT8 SortDirection, |
| 877 | const char *SortKeyName) |
| 878 | { |
| 879 | UINT32 OuterElementCount; |
| 880 | ACPI_OPERAND_OBJECT **OuterElements; |
| 881 | ACPI_OPERAND_OBJECT **Elements; |
| 882 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 883 | UINT32 i; |
| 884 | UINT32 PreviousValue; |
| 885 | |
| 886 | |
| 887 | ACPI_FUNCTION_NAME (NsCheckSortedList); |
| 888 | |
| 889 | |
| 890 | /* The top-level object must be a package */ |
| 891 | |
| 892 | if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) |
| 893 | { |
| 894 | return (AE_AML_OPERAND_TYPE); |
| 895 | } |
| 896 | |
| 897 | /* |
| 898 | * NOTE: assumes list of subpackages contains no NULL elements. |
| 899 | * Any NULL elements should have been removed by earlier call |
| 900 | * to AcpiNsRemoveNullElements. |
| 901 | */ |
| 902 | OuterElementCount = ReturnObject->Package.Count; |
| 903 | if (!OuterElementCount || StartIndex >= OuterElementCount) |
| 904 | { |
| 905 | return (AE_AML_PACKAGE_LIMIT); |
| 906 | } |
| 907 | |
| 908 | OuterElements = &ReturnObject->Package.Elements[StartIndex]; |
| 909 | OuterElementCount -= StartIndex; |
| 910 | |
| 911 | PreviousValue = 0; |
| 912 | if (SortDirection == ACPI_SORT_DESCENDING) |
| 913 | { |
| 914 | PreviousValue = ACPI_UINT32_MAX; |
| 915 | } |
| 916 | |
| 917 | /* Examine each subpackage */ |
| 918 | |
| 919 | for (i = 0; i < OuterElementCount; i++) |
| 920 | { |
| 921 | /* Each element of the top-level package must also be a package */ |
| 922 | |
| 923 | if ((*OuterElements)->Common.Type != ACPI_TYPE_PACKAGE) |
| 924 | { |
| 925 | return (AE_AML_OPERAND_TYPE); |
| 926 | } |
| 927 | |
| 928 | /* Each subpackage must have the minimum length */ |
| 929 | |
| 930 | if ((*OuterElements)->Package.Count < ExpectedCount) |
| 931 | { |
| 932 | return (AE_AML_PACKAGE_LIMIT); |
| 933 | } |
| 934 | |
| 935 | Elements = (*OuterElements)->Package.Elements; |
| 936 | ObjDesc = Elements[SortIndex]; |
| 937 | |
| 938 | if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER) |
| 939 | { |
| 940 | return (AE_AML_OPERAND_TYPE); |
| 941 | } |
| 942 | |
| 943 | /* |
| 944 | * The list must be sorted in the specified order. If we detect a |
| 945 | * discrepancy, sort the entire list. |
| 946 | */ |
| 947 | if (((SortDirection == ACPI_SORT_ASCENDING) && |
| 948 | (ObjDesc->Integer.Value < PreviousValue)) || |
| 949 | ((SortDirection == ACPI_SORT_DESCENDING) && |
| 950 | (ObjDesc->Integer.Value > PreviousValue))) |
| 951 | { |
| 952 | AcpiNsSortList (&ReturnObject->Package.Elements[StartIndex], |
| 953 | OuterElementCount, SortIndex, SortDirection); |
| 954 | |
| 955 | Info->ReturnFlags |= ACPI_OBJECT_REPAIRED; |
| 956 | |
| 957 | ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR, |
| 958 | "%s: Repaired unsorted list - now sorted by %s\n" , |
| 959 | Info->FullPathname, SortKeyName)); |
| 960 | return (AE_OK); |
| 961 | } |
| 962 | |
| 963 | PreviousValue = (UINT32) ObjDesc->Integer.Value; |
| 964 | OuterElements++; |
| 965 | } |
| 966 | |
| 967 | return (AE_OK); |
| 968 | } |
| 969 | |
| 970 | |
| 971 | /****************************************************************************** |
| 972 | * |
| 973 | * FUNCTION: AcpiNsSortList |
| 974 | * |
| 975 | * PARAMETERS: Elements - Package object element list |
| 976 | * Count - Element count for above |
| 977 | * Index - Sort by which package element |
| 978 | * SortDirection - Ascending or Descending sort |
| 979 | * |
| 980 | * RETURN: None |
| 981 | * |
| 982 | * DESCRIPTION: Sort the objects that are in a package element list. |
| 983 | * |
| 984 | * NOTE: Assumes that all NULL elements have been removed from the package, |
| 985 | * and that all elements have been verified to be of type Integer. |
| 986 | * |
| 987 | *****************************************************************************/ |
| 988 | |
| 989 | static void |
| 990 | AcpiNsSortList ( |
| 991 | ACPI_OPERAND_OBJECT **Elements, |
| 992 | UINT32 Count, |
| 993 | UINT32 Index, |
| 994 | UINT8 SortDirection) |
| 995 | { |
| 996 | ACPI_OPERAND_OBJECT *ObjDesc1; |
| 997 | ACPI_OPERAND_OBJECT *ObjDesc2; |
| 998 | ACPI_OPERAND_OBJECT *TempObj; |
| 999 | UINT32 i; |
| 1000 | UINT32 j; |
| 1001 | |
| 1002 | |
| 1003 | /* Simple bubble sort */ |
| 1004 | |
| 1005 | for (i = 1; i < Count; i++) |
| 1006 | { |
| 1007 | for (j = (Count - 1); j >= i; j--) |
| 1008 | { |
| 1009 | ObjDesc1 = Elements[j-1]->Package.Elements[Index]; |
| 1010 | ObjDesc2 = Elements[j]->Package.Elements[Index]; |
| 1011 | |
| 1012 | if (((SortDirection == ACPI_SORT_ASCENDING) && |
| 1013 | (ObjDesc1->Integer.Value > ObjDesc2->Integer.Value)) || |
| 1014 | |
| 1015 | ((SortDirection == ACPI_SORT_DESCENDING) && |
| 1016 | (ObjDesc1->Integer.Value < ObjDesc2->Integer.Value))) |
| 1017 | { |
| 1018 | TempObj = Elements[j-1]; |
| 1019 | Elements[j-1] = Elements[j]; |
| 1020 | Elements[j] = TempObj; |
| 1021 | } |
| 1022 | } |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | |
| 1027 | /****************************************************************************** |
| 1028 | * |
| 1029 | * FUNCTION: AcpiNsRemoveElement |
| 1030 | * |
| 1031 | * PARAMETERS: ObjDesc - Package object element list |
| 1032 | * Index - Index of element to remove |
| 1033 | * |
| 1034 | * RETURN: None |
| 1035 | * |
| 1036 | * DESCRIPTION: Remove the requested element of a package and delete it. |
| 1037 | * |
| 1038 | *****************************************************************************/ |
| 1039 | |
| 1040 | static void |
| 1041 | AcpiNsRemoveElement ( |
| 1042 | ACPI_OPERAND_OBJECT *ObjDesc, |
| 1043 | UINT32 Index) |
| 1044 | { |
| 1045 | ACPI_OPERAND_OBJECT **Source; |
| 1046 | ACPI_OPERAND_OBJECT **Dest; |
| 1047 | UINT32 Count; |
| 1048 | UINT32 NewCount; |
| 1049 | UINT32 i; |
| 1050 | |
| 1051 | |
| 1052 | ACPI_FUNCTION_NAME (NsRemoveElement); |
| 1053 | |
| 1054 | |
| 1055 | Count = ObjDesc->Package.Count; |
| 1056 | NewCount = Count - 1; |
| 1057 | |
| 1058 | Source = ObjDesc->Package.Elements; |
| 1059 | Dest = Source; |
| 1060 | |
| 1061 | /* Examine all elements of the package object, remove matched index */ |
| 1062 | |
| 1063 | for (i = 0; i < Count; i++) |
| 1064 | { |
| 1065 | if (i == Index) |
| 1066 | { |
| 1067 | AcpiUtRemoveReference (*Source); /* Remove one ref for being in pkg */ |
| 1068 | AcpiUtRemoveReference (*Source); |
| 1069 | } |
| 1070 | else |
| 1071 | { |
| 1072 | *Dest = *Source; |
| 1073 | Dest++; |
| 1074 | } |
| 1075 | |
| 1076 | Source++; |
| 1077 | } |
| 1078 | |
| 1079 | /* NULL terminate list and update the package count */ |
| 1080 | |
| 1081 | *Dest = NULL; |
| 1082 | ObjDesc->Package.Count = NewCount; |
| 1083 | } |
| 1084 | |