err.no Git - linux-2.6/blob - drivers/acpi/executer/exresop.c

   1
   2 /******************************************************************************
   3  *
   4  * Module Name: exresop - AML Interpreter operand/object resolution
   5  *
   6  *****************************************************************************/
   7
   8 /*
   9  * Copyright (C) 2000 - 2005, R. Byron Moore
  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
  46 #include <acpi/acpi.h>
  47 #include <acpi/amlcode.h>
  48 #include <acpi/acparser.h>
  49 #include <acpi/acinterp.h>
  50
  51
  52 #define _COMPONENT          ACPI_EXECUTER
  53          ACPI_MODULE_NAME    ("exresop")
  54
  55 /* Local prototypes */
  56
  57 static acpi_status
  58 acpi_ex_check_object_type (
  59         acpi_object_type                type_needed,
  60         acpi_object_type                this_type,
  61         void                            *object);
  62
  63
  64 /*******************************************************************************
  65  *
  66  * FUNCTION:    acpi_ex_check_object_type
  67  *
  68  * PARAMETERS:  type_needed         Object type needed
  69  *              this_type           Actual object type
  70  *              Object              Object pointer
  71  *
  72  * RETURN:      Status
  73  *
  74  * DESCRIPTION: Check required type against actual type
  75  *
  76  ******************************************************************************/
  77
  78 static acpi_status
  79 acpi_ex_check_object_type (
  80         acpi_object_type                type_needed,
  81         acpi_object_type                this_type,
  82         void                            *object)
  83 {
  84         ACPI_FUNCTION_NAME ("ex_check_object_type");
  85
  86
  87         if (type_needed == ACPI_TYPE_ANY) {
  88                 /* All types OK, so we don't perform any typechecks */
  89
  90                 return (AE_OK);
  91         }
  92
  93         if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) {
  94                 /*
  95                  * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference
  96                  * objects and thus allow them to be targets.  (As per the ACPI
  97                  * specification, a store to a constant is a noop.)
  98                  */
  99                 if ((this_type == ACPI_TYPE_INTEGER) &&
 100                         (((union acpi_operand_object *) object)->common.flags & AOPOBJ_AML_CONSTANT)) {
 101                         return (AE_OK);
 102                 }
 103         }
 104
 105         if (type_needed != this_type) {
 106                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 107                         "Needed [%s], found [%s] %p\n",
 108                         acpi_ut_get_type_name (type_needed),
 109                         acpi_ut_get_type_name (this_type), object));
 110
 111                 return (AE_AML_OPERAND_TYPE);
 112         }
 113
 114         return (AE_OK);
 115 }
 116
 117
 118 /*******************************************************************************
 119  *
 120  * FUNCTION:    acpi_ex_resolve_operands
 121  *
 122  * PARAMETERS:  Opcode              - Opcode being interpreted
 123  *              stack_ptr           - Pointer to the operand stack to be
 124  *                                    resolved
 125  *              walk_state          - Current state
 126  *
 127  * RETURN:      Status
 128  *
 129  * DESCRIPTION: Convert multiple input operands to the types required by the
 130  *              target operator.
 131  *
 132  *      Each 5-bit group in arg_types represents one required
 133  *      operand and indicates the required Type. The corresponding operand
 134  *      will be converted to the required type if possible, otherwise we
 135  *      abort with an exception.
 136  *
 137  ******************************************************************************/
 138
 139 acpi_status
 140 acpi_ex_resolve_operands (
 141         u16                             opcode,
 142         union acpi_operand_object       **stack_ptr,
 143         struct acpi_walk_state          *walk_state)
 144 {
 145         union acpi_operand_object       *obj_desc;
 146         acpi_status                     status = AE_OK;
 147         u8                              object_type;
 148         void                            *temp_node;
 149         u32                             arg_types;
 150         const struct acpi_opcode_info   *op_info;
 151         u32                             this_arg_type;
 152         acpi_object_type                type_needed;
 153         u16                             target_op = 0;
 154
 155
 156         ACPI_FUNCTION_TRACE_U32 ("ex_resolve_operands", opcode);
 157
 158
 159         op_info = acpi_ps_get_opcode_info (opcode);
 160         if (op_info->class == AML_CLASS_UNKNOWN) {
 161                 return_ACPI_STATUS (AE_AML_BAD_OPCODE);
 162         }
 163
 164         arg_types = op_info->runtime_args;
 165         if (arg_types == ARGI_INVALID_OPCODE) {
 166                 ACPI_REPORT_ERROR (("resolve_operands: %X is not a valid AML opcode\n",
 167                         opcode));
 168
 169                 return_ACPI_STATUS (AE_AML_INTERNAL);
 170         }
 171
 172         ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
 173                 "Opcode %X [%s] required_operand_types=%8.8X \n",
 174                 opcode, op_info->name, arg_types));
 175
 176         /*
 177          * Normal exit is with (arg_types == 0) at end of argument list.
 178          * Function will return an exception from within the loop upon
 179          * finding an entry which is not (or cannot be converted
 180          * to) the required type; if stack underflows; or upon
 181          * finding a NULL stack entry (which should not happen).
 182          */
 183         while (GET_CURRENT_ARG_TYPE (arg_types)) {
 184                 if (!stack_ptr || !*stack_ptr) {
 185                         ACPI_REPORT_ERROR (("resolve_operands: Null stack entry at %p\n",
 186                                 stack_ptr));
 187
 188                         return_ACPI_STATUS (AE_AML_INTERNAL);
 189                 }
 190
 191                 /* Extract useful items */
 192
 193                 obj_desc = *stack_ptr;
 194
 195                 /* Decode the descriptor type */
 196
 197                 switch (ACPI_GET_DESCRIPTOR_TYPE (obj_desc)) {
 198                 case ACPI_DESC_TYPE_NAMED:
 199
 200                         /* Namespace Node */
 201
 202                         object_type = ((struct acpi_namespace_node *) obj_desc)->type;
 203                         break;
 204
 205
 206                 case ACPI_DESC_TYPE_OPERAND:
 207
 208                         /* ACPI internal object */
 209
 210                         object_type = ACPI_GET_OBJECT_TYPE (obj_desc);
 211
 212                         /* Check for bad acpi_object_type */
 213
 214                         if (!acpi_ut_valid_object_type (object_type)) {
 215                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 216                                         "Bad operand object type [%X]\n",
 217                                         object_type));
 218
 219                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 220                         }
 221
 222                         if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
 223                                 /* Decode the Reference */
 224
 225                                 op_info = acpi_ps_get_opcode_info (opcode);
 226                                 if (op_info->class == AML_CLASS_UNKNOWN) {
 227                                         return_ACPI_STATUS (AE_AML_BAD_OPCODE);
 228                                 }
 229
 230                                 switch (obj_desc->reference.opcode) {
 231                                 case AML_DEBUG_OP:
 232                                         target_op = AML_DEBUG_OP;
 233
 234                                         /*lint -fallthrough */
 235
 236                                 case AML_NAME_OP:
 237                                 case AML_INDEX_OP:
 238                                 case AML_REF_OF_OP:
 239                                 case AML_ARG_OP:
 240                                 case AML_LOCAL_OP:
 241                                 case AML_LOAD_OP: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
 242                                 case AML_INT_NAMEPATH_OP: /* Reference to a named object */
 243
 244                                         ACPI_DEBUG_ONLY_MEMBERS (ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
 245                                                 "Operand is a Reference, ref_opcode [%s]\n",
 246                                                 (acpi_ps_get_opcode_info (obj_desc->reference.opcode))->name)));
 247                                         break;
 248
 249                                 default:
 250                                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 251                                                 "Operand is a Reference, Unknown Reference Opcode %X [%s]\n",
 252                                                 obj_desc->reference.opcode,
 253                                                 (acpi_ps_get_opcode_info (obj_desc->reference.opcode))->name));
 254
 255                                         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 256                                 }
 257                         }
 258                         break;
 259
 260
 261                 default:
 262
 263                         /* Invalid descriptor */
 264
 265                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 266                                         "Invalid descriptor %p [%s]\n",
 267                                         obj_desc, acpi_ut_get_descriptor_name (obj_desc)));
 268
 269                         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 270                 }
 271
 272                 /* Get one argument type, point to the next */
 273
 274                 this_arg_type = GET_CURRENT_ARG_TYPE (arg_types);
 275                 INCREMENT_ARG_LIST (arg_types);
 276
 277                 /*
 278                  * Handle cases where the object does not need to be
 279                  * resolved to a value
 280                  */
 281                 switch (this_arg_type) {
 282                 case ARGI_REF_OR_STRING:        /* Can be a String or Reference */
 283
 284                         if ((ACPI_GET_DESCRIPTOR_TYPE (obj_desc) == ACPI_DESC_TYPE_OPERAND) &&
 285                                 (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_STRING)) {
 286                                 /*
 287                                  * String found - the string references a named object and
 288                                  * must be resolved to a node
 289                                  */
 290                                 goto next_operand;
 291                         }
 292
 293                         /*
 294                          * Else not a string - fall through to the normal Reference
 295                          * case below
 296                          */
 297                         /*lint -fallthrough */
 298
 299                 case ARGI_REFERENCE:            /* References: */
 300                 case ARGI_INTEGER_REF:
 301                 case ARGI_OBJECT_REF:
 302                 case ARGI_DEVICE_REF:
 303                 case ARGI_TARGETREF:     /* Allows implicit conversion rules before store */
 304                 case ARGI_FIXED_TARGET:  /* No implicit conversion before store to target */
 305                 case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion  */
 306
 307                         /*
 308                          * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
 309                          * A Namespace Node is OK as-is
 310                          */
 311                         if (ACPI_GET_DESCRIPTOR_TYPE (obj_desc) == ACPI_DESC_TYPE_NAMED) {
 312                                 goto next_operand;
 313                         }
 314
 315                         status = acpi_ex_check_object_type (ACPI_TYPE_LOCAL_REFERENCE,
 316                                           object_type, obj_desc);
 317                         if (ACPI_FAILURE (status)) {
 318                                 return_ACPI_STATUS (status);
 319                         }
 320
 321                         if (obj_desc->reference.opcode == AML_NAME_OP) {
 322                                 /* Convert a named reference to the actual named object */
 323
 324                                 temp_node = obj_desc->reference.object;
 325                                 acpi_ut_remove_reference (obj_desc);
 326                                 (*stack_ptr) = temp_node;
 327                         }
 328                         goto next_operand;
 329
 330
 331                 case ARGI_DATAREFOBJ:  /* Store operator only */
 332
 333                         /*
 334                          * We don't want to resolve index_op reference objects during
 335                          * a store because this would be an implicit de_ref_of operation.
 336                          * Instead, we just want to store the reference object.
 337                          * -- All others must be resolved below.
 338                          */
 339                         if ((opcode == AML_STORE_OP) &&
 340                                 (ACPI_GET_OBJECT_TYPE (*stack_ptr) == ACPI_TYPE_LOCAL_REFERENCE) &&
 341                                 ((*stack_ptr)->reference.opcode == AML_INDEX_OP)) {
 342                                 goto next_operand;
 343                         }
 344                         break;
 345
 346                 default:
 347                         /* All cases covered above */
 348                         break;
 349                 }
 350
 351                 /*
 352                  * Resolve this object to a value
 353                  */
 354                 status = acpi_ex_resolve_to_value (stack_ptr, walk_state);
 355                 if (ACPI_FAILURE (status)) {
 356                         return_ACPI_STATUS (status);
 357                 }
 358
 359                 /* Get the resolved object */
 360
 361                 obj_desc = *stack_ptr;
 362
 363                 /*
 364                  * Check the resulting object (value) type
 365                  */
 366                 switch (this_arg_type) {
 367                 /*
 368                  * For the simple cases, only one type of resolved object
 369                  * is allowed
 370                  */
 371                 case ARGI_MUTEX:
 372
 373                         /* Need an operand of type ACPI_TYPE_MUTEX */
 374
 375                         type_needed = ACPI_TYPE_MUTEX;
 376                         break;
 377
 378                 case ARGI_EVENT:
 379
 380                         /* Need an operand of type ACPI_TYPE_EVENT */
 381
 382                         type_needed = ACPI_TYPE_EVENT;
 383                         break;
 384
 385                 case ARGI_PACKAGE:   /* Package */
 386
 387                         /* Need an operand of type ACPI_TYPE_PACKAGE */
 388
 389                         type_needed = ACPI_TYPE_PACKAGE;
 390                         break;
 391
 392                 case ARGI_ANYTYPE:
 393
 394                         /* Any operand type will do */
 395
 396                         type_needed = ACPI_TYPE_ANY;
 397                         break;
 398
 399                 case ARGI_DDBHANDLE:
 400
 401                         /* Need an operand of type ACPI_TYPE_DDB_HANDLE */
 402
 403                         type_needed = ACPI_TYPE_LOCAL_REFERENCE;
 404                         break;
 405
 406
 407                 /*
 408                  * The more complex cases allow multiple resolved object types
 409                  */
 410                 case ARGI_INTEGER:
 411
 412                         /*
 413                          * Need an operand of type ACPI_TYPE_INTEGER,
 414                          * But we can implicitly convert from a STRING or BUFFER
 415                          * Aka - "Implicit Source Operand Conversion"
 416                          */
 417                         status = acpi_ex_convert_to_integer (obj_desc, stack_ptr, 16);
 418                         if (ACPI_FAILURE (status)) {
 419                                 if (status == AE_TYPE) {
 420                                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 421                                                 "Needed [Integer/String/Buffer], found [%s] %p\n",
 422                                                 acpi_ut_get_object_type_name (obj_desc), obj_desc));
 423
 424                                         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 425                                 }
 426
 427                                 return_ACPI_STATUS (status);
 428                         }
 429
 430                         if (obj_desc != *stack_ptr) {
 431                                 acpi_ut_remove_reference (obj_desc);
 432                         }
 433                         goto next_operand;
 434
 435
 436                 case ARGI_BUFFER:
 437
 438                         /*
 439                          * Need an operand of type ACPI_TYPE_BUFFER,
 440                          * But we can implicitly convert from a STRING or INTEGER
 441                          * Aka - "Implicit Source Operand Conversion"
 442                          */
 443                         status = acpi_ex_convert_to_buffer (obj_desc, stack_ptr);
 444                         if (ACPI_FAILURE (status)) {
 445                                 if (status == AE_TYPE) {
 446                                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 447                                                 "Needed [Integer/String/Buffer], found [%s] %p\n",
 448                                                 acpi_ut_get_object_type_name (obj_desc), obj_desc));
 449
 450                                         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 451                                 }
 452
 453                                 return_ACPI_STATUS (status);
 454                         }
 455
 456                         if (obj_desc != *stack_ptr) {
 457                                 acpi_ut_remove_reference (obj_desc);
 458                         }
 459                         goto next_operand;
 460
 461
 462                 case ARGI_STRING:
 463
 464                         /*
 465                          * Need an operand of type ACPI_TYPE_STRING,
 466                          * But we can implicitly convert from a BUFFER or INTEGER
 467                          * Aka - "Implicit Source Operand Conversion"
 468                          */
 469                         status = acpi_ex_convert_to_string (obj_desc, stack_ptr,
 470                                          ACPI_IMPLICIT_CONVERT_HEX);
 471                         if (ACPI_FAILURE (status)) {
 472                                 if (status == AE_TYPE) {
 473                                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 474                                                 "Needed [Integer/String/Buffer], found [%s] %p\n",
 475                                                 acpi_ut_get_object_type_name (obj_desc), obj_desc));
 476
 477                                         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 478                                 }
 479
 480                                 return_ACPI_STATUS (status);
 481                         }
 482
 483                         if (obj_desc != *stack_ptr) {
 484                                 acpi_ut_remove_reference (obj_desc);
 485                         }
 486                         goto next_operand;
 487
 488
 489                 case ARGI_COMPUTEDATA:
 490
 491                         /* Need an operand of type INTEGER, STRING or BUFFER */
 492
 493                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 494                         case ACPI_TYPE_INTEGER:
 495                         case ACPI_TYPE_STRING:
 496                         case ACPI_TYPE_BUFFER:
 497
 498                                 /* Valid operand */
 499                            break;
 500
 501                         default:
 502                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 503                                         "Needed [Integer/String/Buffer], found [%s] %p\n",
 504                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 505
 506                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 507                         }
 508                         goto next_operand;
 509
 510
 511                 case ARGI_BUFFER_OR_STRING:
 512
 513                         /* Need an operand of type STRING or BUFFER */
 514
 515                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 516                         case ACPI_TYPE_STRING:
 517                         case ACPI_TYPE_BUFFER:
 518
 519                                 /* Valid operand */
 520                            break;
 521
 522                         case ACPI_TYPE_INTEGER:
 523
 524                                 /* Highest priority conversion is to type Buffer */
 525
 526                                 status = acpi_ex_convert_to_buffer (obj_desc, stack_ptr);
 527                                 if (ACPI_FAILURE (status)) {
 528                                         return_ACPI_STATUS (status);
 529                                 }
 530
 531                                 if (obj_desc != *stack_ptr) {
 532                                         acpi_ut_remove_reference (obj_desc);
 533                                 }
 534                                 break;
 535
 536                         default:
 537                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 538                                         "Needed [Integer/String/Buffer], found [%s] %p\n",
 539                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 540
 541                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 542                         }
 543                         goto next_operand;
 544
 545
 546                 case ARGI_DATAOBJECT:
 547                         /*
 548                          * ARGI_DATAOBJECT is only used by the size_of operator.
 549                          * Need a buffer, string, package, or ref_of reference.
 550                          *
 551                          * The only reference allowed here is a direct reference to
 552                          * a namespace node.
 553                          */
 554                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 555                         case ACPI_TYPE_PACKAGE:
 556                         case ACPI_TYPE_STRING:
 557                         case ACPI_TYPE_BUFFER:
 558                         case ACPI_TYPE_LOCAL_REFERENCE:
 559
 560                                 /* Valid operand */
 561                                 break;
 562
 563                         default:
 564                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 565                                         "Needed [Buffer/String/Package/Reference], found [%s] %p\n",
 566                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 567
 568                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 569                         }
 570                         goto next_operand;
 571
 572
 573                 case ARGI_COMPLEXOBJ:
 574
 575                         /* Need a buffer or package or (ACPI 2.0) String */
 576
 577                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 578                         case ACPI_TYPE_PACKAGE:
 579                         case ACPI_TYPE_STRING:
 580                         case ACPI_TYPE_BUFFER:
 581
 582                                 /* Valid operand */
 583                                 break;
 584
 585                         default:
 586                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 587                                         "Needed [Buffer/String/Package], found [%s] %p\n",
 588                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 589
 590                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 591                         }
 592                         goto next_operand;
 593
 594
 595                 case ARGI_REGION_OR_FIELD:
 596
 597                         /* Need an operand of type REGION or a FIELD in a region */
 598
 599                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 600                         case ACPI_TYPE_REGION:
 601                         case ACPI_TYPE_LOCAL_REGION_FIELD:
 602                         case ACPI_TYPE_LOCAL_BANK_FIELD:
 603                         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 604
 605                                 /* Valid operand */
 606                                 break;
 607
 608                         default:
 609                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 610                                         "Needed [Region/region_field], found [%s] %p\n",
 611                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 612
 613                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 614                         }
 615                         goto next_operand;
 616
 617
 618                 case ARGI_DATAREFOBJ:
 619
 620                         /* Used by the Store() operator only */
 621
 622                         switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
 623                         case ACPI_TYPE_INTEGER:
 624                         case ACPI_TYPE_PACKAGE:
 625                         case ACPI_TYPE_STRING:
 626                         case ACPI_TYPE_BUFFER:
 627                         case ACPI_TYPE_BUFFER_FIELD:
 628                         case ACPI_TYPE_LOCAL_REFERENCE:
 629                         case ACPI_TYPE_LOCAL_REGION_FIELD:
 630                         case ACPI_TYPE_LOCAL_BANK_FIELD:
 631                         case ACPI_TYPE_LOCAL_INDEX_FIELD:
 632                         case ACPI_TYPE_DDB_HANDLE:
 633
 634                                 /* Valid operand */
 635                                 break;
 636
 637                         default:
 638
 639                                 if (acpi_gbl_enable_interpreter_slack) {
 640                                         /*
 641                                          * Enable original behavior of Store(), allowing any and all
 642                                          * objects as the source operand.  The ACPI spec does not
 643                                          * allow this, however.
 644                                          */
 645                                         break;
 646                                 }
 647
 648                                 if (target_op == AML_DEBUG_OP) {
 649                                         /* Allow store of any object to the Debug object */
 650
 651                                         break;
 652                                 }
 653
 654                                 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 655                                         "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p\n",
 656                                         acpi_ut_get_object_type_name (obj_desc), obj_desc));
 657
 658                                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 659                         }
 660                         goto next_operand;
 661
 662
 663                 default:
 664
 665                         /* Unknown type */
 666
 667                         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
 668                                 "Internal - Unknown ARGI (required operand) type %X\n",
 669                                 this_arg_type));
 670
 671                         return_ACPI_STATUS (AE_BAD_PARAMETER);
 672                 }
 673
 674                 /*
 675                  * Make sure that the original object was resolved to the
 676                  * required object type (Simple cases only).
 677                  */
 678                 status = acpi_ex_check_object_type (type_needed,
 679                                   ACPI_GET_OBJECT_TYPE (*stack_ptr), *stack_ptr);
 680                 if (ACPI_FAILURE (status)) {
 681                         return_ACPI_STATUS (status);
 682                 }
 683
 684 next_operand:
 685                 /*
 686                  * If more operands needed, decrement stack_ptr to point
 687                  * to next operand on stack
 688                  */
 689                 if (GET_CURRENT_ARG_TYPE (arg_types)) {
 690                         stack_ptr--;
 691                 }
 692         }
 693
 694         return_ACPI_STATUS (status);
 695 }
 696
 697