| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: dswload - Dispatcher first pass namespace load callbacks |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acparser.h" |
| 47 | #include "amlcode.h" |
| 48 | #include "acdispat.h" |
| 49 | #include "acinterp.h" |
| 50 | #include "acnamesp.h" |
| 51 | |
| 52 | #ifdef ACPI_ASL_COMPILER |
| 53 | #include "acdisasm.h" |
| 54 | #endif |
| 55 | |
| 56 | #define _COMPONENT ACPI_DISPATCHER |
| 57 | ACPI_MODULE_NAME ("dswload" ) |
| 58 | |
| 59 | |
| 60 | /******************************************************************************* |
| 61 | * |
| 62 | * FUNCTION: AcpiDsInitCallbacks |
| 63 | * |
| 64 | * PARAMETERS: WalkState - Current state of the parse tree walk |
| 65 | * PassNumber - 1, 2, or 3 |
| 66 | * |
| 67 | * RETURN: Status |
| 68 | * |
| 69 | * DESCRIPTION: Init walk state callbacks |
| 70 | * |
| 71 | ******************************************************************************/ |
| 72 | |
| 73 | ACPI_STATUS |
| 74 | AcpiDsInitCallbacks ( |
| 75 | ACPI_WALK_STATE *WalkState, |
| 76 | UINT32 PassNumber) |
| 77 | { |
| 78 | |
| 79 | switch (PassNumber) |
| 80 | { |
| 81 | case 0: |
| 82 | |
| 83 | /* Parse only - caller will setup callbacks */ |
| 84 | |
| 85 | WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | |
| 86 | ACPI_PARSE_DELETE_TREE | |
| 87 | ACPI_PARSE_DISASSEMBLE; |
| 88 | WalkState->DescendingCallback = NULL; |
| 89 | WalkState->AscendingCallback = NULL; |
| 90 | break; |
| 91 | |
| 92 | case 1: |
| 93 | |
| 94 | /* Load pass 1 */ |
| 95 | |
| 96 | WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | |
| 97 | ACPI_PARSE_DELETE_TREE; |
| 98 | WalkState->DescendingCallback = AcpiDsLoad1BeginOp; |
| 99 | WalkState->AscendingCallback = AcpiDsLoad1EndOp; |
| 100 | break; |
| 101 | |
| 102 | case 2: |
| 103 | |
| 104 | /* Load pass 2 */ |
| 105 | |
| 106 | WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | |
| 107 | ACPI_PARSE_DELETE_TREE; |
| 108 | WalkState->DescendingCallback = AcpiDsLoad2BeginOp; |
| 109 | WalkState->AscendingCallback = AcpiDsLoad2EndOp; |
| 110 | break; |
| 111 | |
| 112 | case 3: |
| 113 | |
| 114 | /* Execution pass */ |
| 115 | |
| 116 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 117 | WalkState->ParseFlags |= ACPI_PARSE_EXECUTE | |
| 118 | ACPI_PARSE_DELETE_TREE; |
| 119 | WalkState->DescendingCallback = AcpiDsExecBeginOp; |
| 120 | WalkState->AscendingCallback = AcpiDsExecEndOp; |
| 121 | #endif |
| 122 | break; |
| 123 | |
| 124 | default: |
| 125 | |
| 126 | return (AE_BAD_PARAMETER); |
| 127 | } |
| 128 | |
| 129 | return (AE_OK); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | /******************************************************************************* |
| 134 | * |
| 135 | * FUNCTION: AcpiDsLoad1BeginOp |
| 136 | * |
| 137 | * PARAMETERS: WalkState - Current state of the parse tree walk |
| 138 | * OutOp - Where to return op if a new one is created |
| 139 | * |
| 140 | * RETURN: Status |
| 141 | * |
| 142 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. |
| 143 | * |
| 144 | ******************************************************************************/ |
| 145 | |
| 146 | ACPI_STATUS |
| 147 | AcpiDsLoad1BeginOp ( |
| 148 | ACPI_WALK_STATE *WalkState, |
| 149 | ACPI_PARSE_OBJECT **OutOp) |
| 150 | { |
| 151 | ACPI_PARSE_OBJECT *Op; |
| 152 | ACPI_NAMESPACE_NODE *Node; |
| 153 | ACPI_STATUS Status; |
| 154 | ACPI_OBJECT_TYPE ObjectType; |
| 155 | char *Path; |
| 156 | UINT32 Flags; |
| 157 | |
| 158 | |
| 159 | ACPI_FUNCTION_TRACE (DsLoad1BeginOp); |
| 160 | |
| 161 | |
| 162 | Op = WalkState->Op; |
| 163 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n" , Op, WalkState)); |
| 164 | |
| 165 | /* We are only interested in opcodes that have an associated name */ |
| 166 | |
| 167 | if (Op) |
| 168 | { |
| 169 | if (!(WalkState->OpInfo->Flags & AML_NAMED)) |
| 170 | { |
| 171 | *OutOp = Op; |
| 172 | return_ACPI_STATUS (AE_OK); |
| 173 | } |
| 174 | |
| 175 | /* Check if this object has already been installed in the namespace */ |
| 176 | |
| 177 | if (Op->Common.Node) |
| 178 | { |
| 179 | *OutOp = Op; |
| 180 | return_ACPI_STATUS (AE_OK); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | Path = AcpiPsGetNextNamestring (&WalkState->ParserState); |
| 185 | |
| 186 | /* Map the raw opcode into an internal object type */ |
| 187 | |
| 188 | ObjectType = WalkState->OpInfo->ObjectType; |
| 189 | |
| 190 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
| 191 | "State=%p Op=%p [%s]\n" , WalkState, Op, |
| 192 | AcpiUtGetTypeName (ObjectType))); |
| 193 | |
| 194 | switch (WalkState->Opcode) |
| 195 | { |
| 196 | case AML_SCOPE_OP: |
| 197 | /* |
| 198 | * The target name of the Scope() operator must exist at this point so |
| 199 | * that we can actually open the scope to enter new names underneath it. |
| 200 | * Allow search-to-root for single namesegs. |
| 201 | */ |
| 202 | Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, |
| 203 | ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node)); |
| 204 | #ifdef ACPI_ASL_COMPILER |
| 205 | if (Status == AE_NOT_FOUND) |
| 206 | { |
| 207 | /* |
| 208 | * Table disassembly: |
| 209 | * Target of Scope() not found. Generate an External for it, and |
| 210 | * insert the name into the namespace. |
| 211 | */ |
| 212 | AcpiDmAddOpToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0, 0); |
| 213 | Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, |
| 214 | ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, |
| 215 | WalkState, &Node); |
| 216 | } |
| 217 | #endif |
| 218 | if (ACPI_FAILURE (Status)) |
| 219 | { |
| 220 | ACPI_ERROR_NAMESPACE (Path, Status); |
| 221 | return_ACPI_STATUS (Status); |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * Check to make sure that the target is |
| 226 | * one of the opcodes that actually opens a scope |
| 227 | */ |
| 228 | switch (Node->Type) |
| 229 | { |
| 230 | case ACPI_TYPE_ANY: |
| 231 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ |
| 232 | case ACPI_TYPE_DEVICE: |
| 233 | case ACPI_TYPE_POWER: |
| 234 | case ACPI_TYPE_PROCESSOR: |
| 235 | case ACPI_TYPE_THERMAL: |
| 236 | |
| 237 | /* These are acceptable types */ |
| 238 | break; |
| 239 | |
| 240 | case ACPI_TYPE_INTEGER: |
| 241 | case ACPI_TYPE_STRING: |
| 242 | case ACPI_TYPE_BUFFER: |
| 243 | /* |
| 244 | * These types we will allow, but we will change the type. |
| 245 | * This enables some existing code of the form: |
| 246 | * |
| 247 | * Name (DEB, 0) |
| 248 | * Scope (DEB) { ... } |
| 249 | * |
| 250 | * Note: silently change the type here. On the second pass, |
| 251 | * we will report a warning |
| 252 | */ |
| 253 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
| 254 | "Type override - [%4.4s] had invalid type (%s) " |
| 255 | "for Scope operator, changed to type ANY\n" , |
| 256 | AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); |
| 257 | |
| 258 | Node->Type = ACPI_TYPE_ANY; |
| 259 | WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; |
| 260 | break; |
| 261 | |
| 262 | case ACPI_TYPE_METHOD: |
| 263 | /* |
| 264 | * Allow scope change to root during execution of module-level |
| 265 | * code. Root is typed METHOD during this time. |
| 266 | */ |
| 267 | if ((Node == AcpiGbl_RootNode) && |
| 268 | (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) |
| 269 | { |
| 270 | break; |
| 271 | } |
| 272 | |
| 273 | /*lint -fallthrough */ |
| 274 | |
| 275 | default: |
| 276 | |
| 277 | /* All other types are an error */ |
| 278 | |
| 279 | ACPI_ERROR ((AE_INFO, |
| 280 | "Invalid type (%s) for target of " |
| 281 | "Scope operator [%4.4s] (Cannot override)" , |
| 282 | AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); |
| 283 | |
| 284 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
| 285 | } |
| 286 | break; |
| 287 | |
| 288 | default: |
| 289 | /* |
| 290 | * For all other named opcodes, we will enter the name into |
| 291 | * the namespace. |
| 292 | * |
| 293 | * Setup the search flags. |
| 294 | * Since we are entering a name into the namespace, we do not want to |
| 295 | * enable the search-to-root upsearch. |
| 296 | * |
| 297 | * There are only two conditions where it is acceptable that the name |
| 298 | * already exists: |
| 299 | * 1) the Scope() operator can reopen a scoping object that was |
| 300 | * previously defined (Scope, Method, Device, etc.) |
| 301 | * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer, |
| 302 | * BufferField, or Package), the name of the object is already |
| 303 | * in the namespace. |
| 304 | */ |
| 305 | if (WalkState->DeferredNode) |
| 306 | { |
| 307 | /* This name is already in the namespace, get the node */ |
| 308 | |
| 309 | Node = WalkState->DeferredNode; |
| 310 | Status = AE_OK; |
| 311 | break; |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * If we are executing a method, do not create any namespace objects |
| 316 | * during the load phase, only during execution. |
| 317 | */ |
| 318 | if (WalkState->MethodNode) |
| 319 | { |
| 320 | Node = NULL; |
| 321 | Status = AE_OK; |
| 322 | break; |
| 323 | } |
| 324 | |
| 325 | Flags = ACPI_NS_NO_UPSEARCH; |
| 326 | if ((WalkState->Opcode != AML_SCOPE_OP) && |
| 327 | (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP))) |
| 328 | { |
| 329 | if (WalkState->NamespaceOverride) |
| 330 | { |
| 331 | Flags |= ACPI_NS_OVERRIDE_IF_FOUND; |
| 332 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Override allowed\n" , |
| 333 | AcpiUtGetTypeName (ObjectType))); |
| 334 | } |
| 335 | else |
| 336 | { |
| 337 | Flags |= ACPI_NS_ERROR_IF_FOUND; |
| 338 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n" , |
| 339 | AcpiUtGetTypeName (ObjectType))); |
| 340 | } |
| 341 | } |
| 342 | else |
| 343 | { |
| 344 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
| 345 | "[%s] Both Find or Create allowed\n" , |
| 346 | AcpiUtGetTypeName (ObjectType))); |
| 347 | } |
| 348 | |
| 349 | /* |
| 350 | * Enter the named type into the internal namespace. We enter the name |
| 351 | * as we go downward in the parse tree. Any necessary subobjects that |
| 352 | * involve arguments to the opcode must be created as we go back up the |
| 353 | * parse tree later. |
| 354 | */ |
| 355 | Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, |
| 356 | ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node); |
| 357 | if (ACPI_FAILURE (Status)) |
| 358 | { |
| 359 | if (Status == AE_ALREADY_EXISTS) |
| 360 | { |
| 361 | /* The name already exists in this scope */ |
| 362 | |
| 363 | if (Node->Flags & ANOBJ_IS_EXTERNAL) |
| 364 | { |
| 365 | /* |
| 366 | * Allow one create on an object or segment that was |
| 367 | * previously declared External |
| 368 | */ |
| 369 | Node->Flags &= ~ANOBJ_IS_EXTERNAL; |
| 370 | Node->Type = (UINT8) ObjectType; |
| 371 | |
| 372 | /* Just retyped a node, probably will need to open a scope */ |
| 373 | |
| 374 | if (AcpiNsOpensScope (ObjectType)) |
| 375 | { |
| 376 | Status = AcpiDsScopeStackPush ( |
| 377 | Node, ObjectType, WalkState); |
| 378 | if (ACPI_FAILURE (Status)) |
| 379 | { |
| 380 | return_ACPI_STATUS (Status); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | Status = AE_OK; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | if (ACPI_FAILURE (Status)) |
| 389 | { |
| 390 | ACPI_ERROR_NAMESPACE (Path, Status); |
| 391 | return_ACPI_STATUS (Status); |
| 392 | } |
| 393 | } |
| 394 | break; |
| 395 | } |
| 396 | |
| 397 | /* Common exit */ |
| 398 | |
| 399 | if (!Op) |
| 400 | { |
| 401 | /* Create a new op */ |
| 402 | |
| 403 | Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); |
| 404 | if (!Op) |
| 405 | { |
| 406 | return_ACPI_STATUS (AE_NO_MEMORY); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | /* Initialize the op */ |
| 411 | |
| 412 | #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) |
| 413 | Op->Named.Path = ACPI_CAST_PTR (UINT8, Path); |
| 414 | #endif |
| 415 | |
| 416 | if (Node) |
| 417 | { |
| 418 | /* |
| 419 | * Put the Node in the "op" object that the parser uses, so we |
| 420 | * can get it again quickly when this scope is closed |
| 421 | */ |
| 422 | Op->Common.Node = Node; |
| 423 | Op->Named.Name = Node->Name.Integer; |
| 424 | } |
| 425 | |
| 426 | AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op); |
| 427 | *OutOp = Op; |
| 428 | return_ACPI_STATUS (Status); |
| 429 | } |
| 430 | |
| 431 | |
| 432 | /******************************************************************************* |
| 433 | * |
| 434 | * FUNCTION: AcpiDsLoad1EndOp |
| 435 | * |
| 436 | * PARAMETERS: WalkState - Current state of the parse tree walk |
| 437 | * |
| 438 | * RETURN: Status |
| 439 | * |
| 440 | * DESCRIPTION: Ascending callback used during the loading of the namespace, |
| 441 | * both control methods and everything else. |
| 442 | * |
| 443 | ******************************************************************************/ |
| 444 | |
| 445 | ACPI_STATUS |
| 446 | AcpiDsLoad1EndOp ( |
| 447 | ACPI_WALK_STATE *WalkState) |
| 448 | { |
| 449 | ACPI_PARSE_OBJECT *Op; |
| 450 | ACPI_OBJECT_TYPE ObjectType; |
| 451 | ACPI_STATUS Status = AE_OK; |
| 452 | |
| 453 | |
| 454 | ACPI_FUNCTION_TRACE (DsLoad1EndOp); |
| 455 | |
| 456 | |
| 457 | Op = WalkState->Op; |
| 458 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n" , Op, WalkState)); |
| 459 | |
| 460 | /* We are only interested in opcodes that have an associated name */ |
| 461 | |
| 462 | if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD))) |
| 463 | { |
| 464 | return_ACPI_STATUS (AE_OK); |
| 465 | } |
| 466 | |
| 467 | /* Get the object type to determine if we should pop the scope */ |
| 468 | |
| 469 | ObjectType = WalkState->OpInfo->ObjectType; |
| 470 | |
| 471 | #ifndef ACPI_NO_METHOD_EXECUTION |
| 472 | if (WalkState->OpInfo->Flags & AML_FIELD) |
| 473 | { |
| 474 | /* |
| 475 | * If we are executing a method, do not create any namespace objects |
| 476 | * during the load phase, only during execution. |
| 477 | */ |
| 478 | if (!WalkState->MethodNode) |
| 479 | { |
| 480 | if (WalkState->Opcode == AML_FIELD_OP || |
| 481 | WalkState->Opcode == AML_BANK_FIELD_OP || |
| 482 | WalkState->Opcode == AML_INDEX_FIELD_OP) |
| 483 | { |
| 484 | Status = AcpiDsInitFieldObjects (Op, WalkState); |
| 485 | } |
| 486 | } |
| 487 | return_ACPI_STATUS (Status); |
| 488 | } |
| 489 | |
| 490 | /* |
| 491 | * If we are executing a method, do not create any namespace objects |
| 492 | * during the load phase, only during execution. |
| 493 | */ |
| 494 | if (!WalkState->MethodNode) |
| 495 | { |
| 496 | if (Op->Common.AmlOpcode == AML_REGION_OP) |
| 497 | { |
| 498 | Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, |
| 499 | (ACPI_ADR_SPACE_TYPE) |
| 500 | ((Op->Common.Value.Arg)->Common.Value.Integer), |
| 501 | WalkState); |
| 502 | if (ACPI_FAILURE (Status)) |
| 503 | { |
| 504 | return_ACPI_STATUS (Status); |
| 505 | } |
| 506 | } |
| 507 | else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) |
| 508 | { |
| 509 | Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, |
| 510 | ACPI_ADR_SPACE_DATA_TABLE, WalkState); |
| 511 | if (ACPI_FAILURE (Status)) |
| 512 | { |
| 513 | return_ACPI_STATUS (Status); |
| 514 | } |
| 515 | } |
| 516 | } |
| 517 | #endif |
| 518 | |
| 519 | if (Op->Common.AmlOpcode == AML_NAME_OP) |
| 520 | { |
| 521 | /* For Name opcode, get the object type from the argument */ |
| 522 | |
| 523 | if (Op->Common.Value.Arg) |
| 524 | { |
| 525 | ObjectType = (AcpiPsGetOpcodeInfo ( |
| 526 | (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType; |
| 527 | |
| 528 | /* Set node type if we have a namespace node */ |
| 529 | |
| 530 | if (Op->Common.Node) |
| 531 | { |
| 532 | Op->Common.Node->Type = (UINT8) ObjectType; |
| 533 | } |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | /* |
| 538 | * If we are executing a method, do not create any namespace objects |
| 539 | * during the load phase, only during execution. |
| 540 | */ |
| 541 | if (!WalkState->MethodNode) |
| 542 | { |
| 543 | if (Op->Common.AmlOpcode == AML_METHOD_OP) |
| 544 | { |
| 545 | /* |
| 546 | * MethodOp PkgLength NameString MethodFlags TermList |
| 547 | * |
| 548 | * Note: We must create the method node/object pair as soon as we |
| 549 | * see the method declaration. This allows later pass1 parsing |
| 550 | * of invocations of the method (need to know the number of |
| 551 | * arguments.) |
| 552 | */ |
| 553 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
| 554 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n" , |
| 555 | WalkState, Op, Op->Named.Node)); |
| 556 | |
| 557 | if (!AcpiNsGetAttachedObject (Op->Named.Node)) |
| 558 | { |
| 559 | WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); |
| 560 | WalkState->NumOperands = 1; |
| 561 | |
| 562 | Status = AcpiDsCreateOperands ( |
| 563 | WalkState, Op->Common.Value.Arg); |
| 564 | if (ACPI_SUCCESS (Status)) |
| 565 | { |
| 566 | Status = AcpiExCreateMethod (Op->Named.Data, |
| 567 | Op->Named.Length, WalkState); |
| 568 | } |
| 569 | |
| 570 | WalkState->Operands[0] = NULL; |
| 571 | WalkState->NumOperands = 0; |
| 572 | |
| 573 | if (ACPI_FAILURE (Status)) |
| 574 | { |
| 575 | return_ACPI_STATUS (Status); |
| 576 | } |
| 577 | } |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | /* Pop the scope stack (only if loading a table) */ |
| 582 | |
| 583 | if (!WalkState->MethodNode && |
| 584 | AcpiNsOpensScope (ObjectType)) |
| 585 | { |
| 586 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n" , |
| 587 | AcpiUtGetTypeName (ObjectType), Op)); |
| 588 | |
| 589 | Status = AcpiDsScopeStackPop (WalkState); |
| 590 | } |
| 591 | |
| 592 | return_ACPI_STATUS (Status); |
| 593 | } |
| 594 | |