1 /****************************************************************************** 2 * 3 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2012, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 *****************************************************************************/ 115 116 #ifndef _ACOBJECT_H 117 #define _ACOBJECT_H 118 119 /* acpisrc:StructDefs -- for acpisrc conversion */ 120 121 122 /* 123 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 124 * to the interpreter, and to keep track of the various handlers such as 125 * address space handlers and notify handlers. The object is a constant 126 * size in order to allow it to be cached and reused. 127 * 128 * Note: The object is optimized to be aligned and will not work if it is 129 * byte-packed. 130 */ 131 #if ACPI_MACHINE_WIDTH == 64 132 #pragma pack(8) 133 #else 134 #pragma pack(4) 135 #endif 136 137 /******************************************************************************* 138 * 139 * Common Descriptors 140 * 141 ******************************************************************************/ 142 143 /* 144 * Common area for all objects. 145 * 146 * DescriptorType is used to differentiate between internal descriptors, and 147 * must be in the same place across all descriptors 148 * 149 * Note: The DescriptorType and Type fields must appear in the identical 150 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT 151 * structures. 152 */ 153 #define ACPI_OBJECT_COMMON_HEADER \ 154 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 155 UINT8 DescriptorType; /* To differentiate various internal objs */\ 156 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 157 UINT16 ReferenceCount; /* For object deletion management */\ 158 UINT8 Flags; 159 /* 160 * Note: There are 3 bytes available here before the 161 * next natural alignment boundary (for both 32/64 cases) 162 */ 163 164 /* Values for Flag byte above */ 165 166 #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 167 #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 168 #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ 169 #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized, _REG was run */ 170 #define AOPOBJ_SETUP_COMPLETE 0x10 /* Region setup is complete */ 171 #define AOPOBJ_INVALID 0x20 /* Host OS won't allow a Region address */ 172 173 174 /****************************************************************************** 175 * 176 * Basic data types 177 * 178 *****************************************************************************/ 179 180 typedef struct acpi_object_common 181 { 182 ACPI_OBJECT_COMMON_HEADER 183 184 } ACPI_OBJECT_COMMON; 185 186 187 typedef struct acpi_object_integer 188 { 189 ACPI_OBJECT_COMMON_HEADER 190 UINT8 Fill[3]; /* Prevent warning on some compilers */ 191 UINT64 Value; 192 193 } ACPI_OBJECT_INTEGER; 194 195 196 /* 197 * Note: The String and Buffer object must be identical through the 198 * pointer and length elements. There is code that depends on this. 199 * 200 * Fields common to both Strings and Buffers 201 */ 202 #define ACPI_COMMON_BUFFER_INFO(_Type) \ 203 _Type *Pointer; \ 204 UINT32 Length; 205 206 207 typedef struct acpi_object_string /* Null terminated, ASCII characters only */ 208 { 209 ACPI_OBJECT_COMMON_HEADER 210 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 211 212 } ACPI_OBJECT_STRING; 213 214 215 typedef struct acpi_object_buffer 216 { 217 ACPI_OBJECT_COMMON_HEADER 218 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 219 UINT32 AmlLength; 220 UINT8 *AmlStart; 221 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 222 223 } ACPI_OBJECT_BUFFER; 224 225 226 typedef struct acpi_object_package 227 { 228 ACPI_OBJECT_COMMON_HEADER 229 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 230 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 231 UINT8 *AmlStart; 232 UINT32 AmlLength; 233 UINT32 Count; /* # of elements in package */ 234 235 } ACPI_OBJECT_PACKAGE; 236 237 238 /****************************************************************************** 239 * 240 * Complex data types 241 * 242 *****************************************************************************/ 243 244 typedef struct acpi_object_event 245 { 246 ACPI_OBJECT_COMMON_HEADER 247 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 248 249 } ACPI_OBJECT_EVENT; 250 251 252 typedef struct acpi_object_mutex 253 { 254 ACPI_OBJECT_COMMON_HEADER 255 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 256 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 257 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 258 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 259 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 260 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 261 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 262 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 263 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 264 265 } ACPI_OBJECT_MUTEX; 266 267 268 typedef struct acpi_object_region 269 { 270 ACPI_OBJECT_COMMON_HEADER 271 UINT8 SpaceId; 272 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 273 union acpi_operand_object *Handler; /* Handler for region access */ 274 union acpi_operand_object *Next; 275 ACPI_PHYSICAL_ADDRESS Address; 276 UINT32 Length; 277 278 } ACPI_OBJECT_REGION; 279 280 281 typedef struct acpi_object_method 282 { 283 ACPI_OBJECT_COMMON_HEADER 284 UINT8 InfoFlags; 285 UINT8 ParamCount; 286 UINT8 SyncLevel; 287 union acpi_operand_object *Mutex; 288 UINT8 *AmlStart; 289 union 290 { 291 ACPI_INTERNAL_METHOD Implementation; 292 union acpi_operand_object *Handler; 293 } Dispatch; 294 295 UINT32 AmlLength; 296 UINT8 ThreadCount; 297 ACPI_OWNER_ID OwnerId; 298 299 } ACPI_OBJECT_METHOD; 300 301 /* Flags for InfoFlags field above */ 302 303 #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 304 #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 305 #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 306 #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 307 #define ACPI_METHOD_MODIFIED_NAMESPACE 0x10 /* Method modified the namespace */ 308 309 310 /****************************************************************************** 311 * 312 * Objects that can be notified. All share a common NotifyInfo area. 313 * 314 *****************************************************************************/ 315 316 /* 317 * Common fields for objects that support ASL notifications 318 */ 319 #define ACPI_COMMON_NOTIFY_INFO \ 320 union acpi_operand_object *NotifyList[2]; /* Handlers for system/device notifies */\ 321 union acpi_operand_object *Handler; /* Handler for Address space */ 322 323 324 typedef struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 325 { 326 ACPI_OBJECT_COMMON_HEADER 327 ACPI_COMMON_NOTIFY_INFO 328 329 } ACPI_OBJECT_NOTIFY_COMMON; 330 331 332 typedef struct acpi_object_device 333 { 334 ACPI_OBJECT_COMMON_HEADER 335 ACPI_COMMON_NOTIFY_INFO 336 ACPI_GPE_BLOCK_INFO *GpeBlock; 337 338 } ACPI_OBJECT_DEVICE; 339 340 341 typedef struct acpi_object_power_resource 342 { 343 ACPI_OBJECT_COMMON_HEADER 344 ACPI_COMMON_NOTIFY_INFO 345 UINT32 SystemLevel; 346 UINT32 ResourceOrder; 347 348 } ACPI_OBJECT_POWER_RESOURCE; 349 350 351 typedef struct acpi_object_processor 352 { 353 ACPI_OBJECT_COMMON_HEADER 354 355 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 356 357 UINT8 ProcId; 358 UINT8 Length; 359 ACPI_COMMON_NOTIFY_INFO 360 ACPI_IO_ADDRESS Address; 361 362 } ACPI_OBJECT_PROCESSOR; 363 364 365 typedef struct acpi_object_thermal_zone 366 { 367 ACPI_OBJECT_COMMON_HEADER 368 ACPI_COMMON_NOTIFY_INFO 369 370 } ACPI_OBJECT_THERMAL_ZONE; 371 372 373 /****************************************************************************** 374 * 375 * Fields. All share a common header/info field. 376 * 377 *****************************************************************************/ 378 379 /* 380 * Common bitfield for the field objects 381 * "Field Datum" -- a datum from the actual field object 382 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 383 */ 384 #define ACPI_COMMON_FIELD_INFO \ 385 UINT8 FieldFlags; /* Access, update, and lock bits */\ 386 UINT8 Attribute; /* From AccessAs keyword */\ 387 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 388 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 389 UINT32 BitLength; /* Length of field in bits */\ 390 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 391 UINT32 Value; /* Value to store into the Bank or Index register */\ 392 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 393 UINT8 AccessLength; /* For serial regions/fields */ 394 395 396 typedef struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 397 { 398 ACPI_OBJECT_COMMON_HEADER 399 ACPI_COMMON_FIELD_INFO 400 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 401 402 } ACPI_OBJECT_FIELD_COMMON; 403 404 405 typedef struct acpi_object_region_field 406 { 407 ACPI_OBJECT_COMMON_HEADER 408 ACPI_COMMON_FIELD_INFO 409 UINT16 ResourceLength; 410 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 411 UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ 412 413 } ACPI_OBJECT_REGION_FIELD; 414 415 416 typedef struct acpi_object_bank_field 417 { 418 ACPI_OBJECT_COMMON_HEADER 419 ACPI_COMMON_FIELD_INFO 420 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 421 union acpi_operand_object *BankObj; /* BankSelect Register object */ 422 423 } ACPI_OBJECT_BANK_FIELD; 424 425 426 typedef struct acpi_object_index_field 427 { 428 ACPI_OBJECT_COMMON_HEADER 429 ACPI_COMMON_FIELD_INFO 430 431 /* 432 * No "RegionObj" pointer needed since the Index and Data registers 433 * are each field definitions unto themselves. 434 */ 435 union acpi_operand_object *IndexObj; /* Index register */ 436 union acpi_operand_object *DataObj; /* Data register */ 437 438 } ACPI_OBJECT_INDEX_FIELD; 439 440 441 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 442 443 typedef struct acpi_object_buffer_field 444 { 445 ACPI_OBJECT_COMMON_HEADER 446 ACPI_COMMON_FIELD_INFO 447 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 448 449 } ACPI_OBJECT_BUFFER_FIELD; 450 451 452 /****************************************************************************** 453 * 454 * Objects for handlers 455 * 456 *****************************************************************************/ 457 458 typedef struct acpi_object_notify_handler 459 { 460 ACPI_OBJECT_COMMON_HEADER 461 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 462 UINT32 HandlerType; /* Type: Device/System/Both */ 463 ACPI_NOTIFY_HANDLER Handler; /* Handler address */ 464 void *Context; 465 union acpi_operand_object *Next[2]; /* Device and System handler lists */ 466 467 } ACPI_OBJECT_NOTIFY_HANDLER; 468 469 470 typedef struct acpi_object_addr_handler 471 { 472 ACPI_OBJECT_COMMON_HEADER 473 UINT8 SpaceId; 474 UINT8 HandlerFlags; 475 ACPI_ADR_SPACE_HANDLER Handler; 476 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 477 void *Context; 478 ACPI_ADR_SPACE_SETUP Setup; 479 union acpi_operand_object *RegionList; /* Regions using this handler */ 480 union acpi_operand_object *Next; 481 482 } ACPI_OBJECT_ADDR_HANDLER; 483 484 /* Flags for address handler (HandlerFlags) */ 485 486 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 487 488 489 /****************************************************************************** 490 * 491 * Special internal objects 492 * 493 *****************************************************************************/ 494 495 /* 496 * The Reference object is used for these opcodes: 497 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp 498 * The Reference.Class differentiates these types. 499 */ 500 typedef struct acpi_object_reference 501 { 502 ACPI_OBJECT_COMMON_HEADER 503 UINT8 Class; /* Reference Class */ 504 UINT8 TargetType; /* Used for Index Op */ 505 UINT8 Reserved; 506 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 507 ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ 508 union acpi_operand_object **Where; /* Target of Index */ 509 UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ 510 511 } ACPI_OBJECT_REFERENCE; 512 513 /* Values for Reference.Class above */ 514 515 typedef enum 516 { 517 ACPI_REFCLASS_LOCAL = 0, /* Method local */ 518 ACPI_REFCLASS_ARG = 1, /* Method argument */ 519 ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ 520 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 521 ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ 522 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 523 ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 524 525 ACPI_REFCLASS_MAX = 6 526 527 } ACPI_REFERENCE_CLASSES; 528 529 530 /* 531 * Extra object is used as additional storage for types that 532 * have AML code in their declarations (TermArgs) that must be 533 * evaluated at run time. 534 * 535 * Currently: Region and FieldUnit types 536 */ 537 typedef struct acpi_object_extra 538 { 539 ACPI_OBJECT_COMMON_HEADER 540 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 541 ACPI_NAMESPACE_NODE *ScopeNode; 542 void *RegionContext; /* Region-specific data */ 543 UINT8 *AmlStart; 544 UINT32 AmlLength; 545 546 } ACPI_OBJECT_EXTRA; 547 548 549 /* Additional data that can be attached to namespace nodes */ 550 551 typedef struct acpi_object_data 552 { 553 ACPI_OBJECT_COMMON_HEADER 554 ACPI_OBJECT_HANDLER Handler; 555 void *Pointer; 556 557 } ACPI_OBJECT_DATA; 558 559 560 /* Structure used when objects are cached for reuse */ 561 562 typedef struct acpi_object_cache_list 563 { 564 ACPI_OBJECT_COMMON_HEADER 565 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 566 567 } ACPI_OBJECT_CACHE_LIST; 568 569 570 /****************************************************************************** 571 * 572 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 573 * 574 *****************************************************************************/ 575 576 typedef union acpi_operand_object 577 { 578 ACPI_OBJECT_COMMON Common; 579 ACPI_OBJECT_INTEGER Integer; 580 ACPI_OBJECT_STRING String; 581 ACPI_OBJECT_BUFFER Buffer; 582 ACPI_OBJECT_PACKAGE Package; 583 ACPI_OBJECT_EVENT Event; 584 ACPI_OBJECT_METHOD Method; 585 ACPI_OBJECT_MUTEX Mutex; 586 ACPI_OBJECT_REGION Region; 587 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 588 ACPI_OBJECT_DEVICE Device; 589 ACPI_OBJECT_POWER_RESOURCE PowerResource; 590 ACPI_OBJECT_PROCESSOR Processor; 591 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 592 ACPI_OBJECT_FIELD_COMMON CommonField; 593 ACPI_OBJECT_REGION_FIELD Field; 594 ACPI_OBJECT_BUFFER_FIELD BufferField; 595 ACPI_OBJECT_BANK_FIELD BankField; 596 ACPI_OBJECT_INDEX_FIELD IndexField; 597 ACPI_OBJECT_NOTIFY_HANDLER Notify; 598 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 599 ACPI_OBJECT_REFERENCE Reference; 600 ACPI_OBJECT_EXTRA Extra; 601 ACPI_OBJECT_DATA Data; 602 ACPI_OBJECT_CACHE_LIST Cache; 603 604 /* 605 * Add namespace node to union in order to simplify code that accepts both 606 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 607 * a common DescriptorType field in order to differentiate them. 608 */ 609 ACPI_NAMESPACE_NODE Node; 610 611 } ACPI_OPERAND_OBJECT; 612 613 614 /****************************************************************************** 615 * 616 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 617 * 618 *****************************************************************************/ 619 620 /* Object descriptor types */ 621 622 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 623 #define ACPI_DESC_TYPE_STATE 0x02 624 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 625 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 626 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 627 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 628 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 629 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 630 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 631 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 632 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 633 #define ACPI_DESC_TYPE_WALK 0x0C 634 #define ACPI_DESC_TYPE_PARSER 0x0D 635 #define ACPI_DESC_TYPE_OPERAND 0x0E 636 #define ACPI_DESC_TYPE_NAMED 0x0F 637 #define ACPI_DESC_TYPE_MAX 0x0F 638 639 640 typedef struct acpi_common_descriptor 641 { 642 void *CommonPointer; 643 UINT8 DescriptorType; /* To differentiate various internal objs */ 644 645 } ACPI_COMMON_DESCRIPTOR; 646 647 typedef union acpi_descriptor 648 { 649 ACPI_COMMON_DESCRIPTOR Common; 650 ACPI_OPERAND_OBJECT Object; 651 ACPI_NAMESPACE_NODE Node; 652 ACPI_PARSE_OBJECT Op; 653 654 } ACPI_DESCRIPTOR; 655 656 #pragma pack() 657 658 #endif /* _ACOBJECT_H */ 659