1 2 /****************************************************************************** 3 * 4 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 5 * 6 *****************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 #ifndef _ACOBJECT_H 118 #define _ACOBJECT_H 119 120 /* acpisrc:StructDefs -- for acpisrc conversion */ 121 122 123 /* 124 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 125 * to the interpreter, and to keep track of the various handlers such as 126 * address space handlers and notify handlers. The object is a constant 127 * size in order to allow it to be cached and reused. 128 * 129 * Note: The object is optimized to be aligned and will not work if it is 130 * byte-packed. 131 */ 132 #if ACPI_MACHINE_WIDTH == 64 133 #pragma pack(8) 134 #else 135 #pragma pack(4) 136 #endif 137 138 /******************************************************************************* 139 * 140 * Common Descriptors 141 * 142 ******************************************************************************/ 143 144 /* 145 * Common area for all objects. 146 * 147 * DescriptorType is used to differentiate between internal descriptors, and 148 * must be in the same place across all descriptors 149 * 150 * Note: The DescriptorType and Type fields must appear in the identical 151 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT 152 * structures. 153 */ 154 #define ACPI_OBJECT_COMMON_HEADER \ 155 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 156 UINT8 DescriptorType; /* To differentiate various internal objs */\ 157 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 158 UINT16 ReferenceCount; /* For object deletion management */\ 159 UINT8 Flags; 160 /* 161 * Note: There are 3 bytes available here before the 162 * next natural alignment boundary (for both 32/64 cases) 163 */ 164 165 /* Values for Flag byte above */ 166 167 #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 168 #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 169 #define AOPOBJ_DATA_VALID 0x04 /* Object is intialized and data is valid */ 170 #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized, _REG was run */ 171 #define AOPOBJ_SETUP_COMPLETE 0x10 /* Region setup is complete */ 172 #define AOPOBJ_INVALID 0x20 /* Host OS won't allow a Region address */ 173 #define AOPOBJ_MODULE_LEVEL 0x40 /* Method is actually module-level code */ 174 #define AOPOBJ_MODIFIED_NAMESPACE 0x80 /* Method modified the namespace */ 175 176 177 /****************************************************************************** 178 * 179 * Basic data types 180 * 181 *****************************************************************************/ 182 183 typedef struct acpi_object_common 184 { 185 ACPI_OBJECT_COMMON_HEADER 186 187 } ACPI_OBJECT_COMMON; 188 189 190 typedef struct acpi_object_integer 191 { 192 ACPI_OBJECT_COMMON_HEADER 193 UINT8 Fill[3]; /* Prevent warning on some compilers */ 194 UINT64 Value; 195 196 } ACPI_OBJECT_INTEGER; 197 198 199 /* 200 * Note: The String and Buffer object must be identical through the Pointer 201 * and length elements. There is code that depends on this. 202 * 203 * Fields common to both Strings and Buffers 204 */ 205 #define ACPI_COMMON_BUFFER_INFO(_Type) \ 206 _Type *Pointer; \ 207 UINT32 Length; 208 209 210 typedef struct acpi_object_string /* Null terminated, ASCII characters only */ 211 { 212 ACPI_OBJECT_COMMON_HEADER 213 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 214 215 } ACPI_OBJECT_STRING; 216 217 218 typedef struct acpi_object_buffer 219 { 220 ACPI_OBJECT_COMMON_HEADER 221 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 222 UINT32 AmlLength; 223 UINT8 *AmlStart; 224 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 225 226 } ACPI_OBJECT_BUFFER; 227 228 229 typedef struct acpi_object_package 230 { 231 ACPI_OBJECT_COMMON_HEADER 232 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 233 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 234 UINT8 *AmlStart; 235 UINT32 AmlLength; 236 UINT32 Count; /* # of elements in package */ 237 238 } ACPI_OBJECT_PACKAGE; 239 240 241 /****************************************************************************** 242 * 243 * Complex data types 244 * 245 *****************************************************************************/ 246 247 typedef struct acpi_object_event 248 { 249 ACPI_OBJECT_COMMON_HEADER 250 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 251 252 } ACPI_OBJECT_EVENT; 253 254 255 typedef struct acpi_object_mutex 256 { 257 ACPI_OBJECT_COMMON_HEADER 258 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 259 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 260 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 261 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 262 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 263 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 264 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 265 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 266 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 267 268 } ACPI_OBJECT_MUTEX; 269 270 271 typedef struct acpi_object_region 272 { 273 ACPI_OBJECT_COMMON_HEADER 274 UINT8 SpaceId; 275 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 276 union acpi_operand_object *Handler; /* Handler for region access */ 277 union acpi_operand_object *Next; 278 ACPI_PHYSICAL_ADDRESS Address; 279 UINT32 Length; 280 281 } ACPI_OBJECT_REGION; 282 283 284 typedef struct acpi_object_method 285 { 286 ACPI_OBJECT_COMMON_HEADER 287 UINT8 MethodFlags; 288 UINT8 ParamCount; 289 UINT8 SyncLevel; 290 union acpi_operand_object *Mutex; 291 UINT8 *AmlStart; 292 union 293 { 294 ACPI_INTERNAL_METHOD Implementation; 295 union acpi_operand_object *Handler; 296 } Extra; 297 298 UINT32 AmlLength; 299 UINT8 ThreadCount; 300 ACPI_OWNER_ID OwnerId; 301 302 } ACPI_OBJECT_METHOD; 303 304 305 /****************************************************************************** 306 * 307 * Objects that can be notified. All share a common NotifyInfo area. 308 * 309 *****************************************************************************/ 310 311 /* 312 * Common fields for objects that support ASL notifications 313 */ 314 #define ACPI_COMMON_NOTIFY_INFO \ 315 union acpi_operand_object *SystemNotify; /* Handler for system notifies */\ 316 union acpi_operand_object *DeviceNotify; /* Handler for driver notifies */\ 317 union acpi_operand_object *Handler; /* Handler for Address space */ 318 319 320 typedef struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 321 { 322 ACPI_OBJECT_COMMON_HEADER 323 ACPI_COMMON_NOTIFY_INFO 324 325 } ACPI_OBJECT_NOTIFY_COMMON; 326 327 328 typedef struct acpi_object_device 329 { 330 ACPI_OBJECT_COMMON_HEADER 331 ACPI_COMMON_NOTIFY_INFO 332 ACPI_GPE_BLOCK_INFO *GpeBlock; 333 334 } ACPI_OBJECT_DEVICE; 335 336 337 typedef struct acpi_object_power_resource 338 { 339 ACPI_OBJECT_COMMON_HEADER 340 ACPI_COMMON_NOTIFY_INFO 341 UINT32 SystemLevel; 342 UINT32 ResourceOrder; 343 344 } ACPI_OBJECT_POWER_RESOURCE; 345 346 347 typedef struct acpi_object_processor 348 { 349 ACPI_OBJECT_COMMON_HEADER 350 351 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 352 353 UINT8 ProcId; 354 UINT8 Length; 355 ACPI_COMMON_NOTIFY_INFO 356 ACPI_IO_ADDRESS Address; 357 358 } ACPI_OBJECT_PROCESSOR; 359 360 361 typedef struct acpi_object_thermal_zone 362 { 363 ACPI_OBJECT_COMMON_HEADER 364 ACPI_COMMON_NOTIFY_INFO 365 366 } ACPI_OBJECT_THERMAL_ZONE; 367 368 369 /****************************************************************************** 370 * 371 * Fields. All share a common header/info field. 372 * 373 *****************************************************************************/ 374 375 /* 376 * Common bitfield for the field objects 377 * "Field Datum" -- a datum from the actual field object 378 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 379 */ 380 #define ACPI_COMMON_FIELD_INFO \ 381 UINT8 FieldFlags; /* Access, update, and lock bits */\ 382 UINT8 Attribute; /* From AccessAs keyword */\ 383 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 384 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 385 UINT32 BitLength; /* Length of field in bits */\ 386 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 387 UINT32 Value; /* Value to store into the Bank or Index register */\ 388 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 389 UINT8 AccessBitWidth; /* Read/Write size in bits (8-64) */ 390 391 392 typedef struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 393 { 394 ACPI_OBJECT_COMMON_HEADER 395 ACPI_COMMON_FIELD_INFO 396 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 397 398 } ACPI_OBJECT_FIELD_COMMON; 399 400 401 typedef struct acpi_object_region_field 402 { 403 ACPI_OBJECT_COMMON_HEADER 404 ACPI_COMMON_FIELD_INFO 405 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 406 407 } ACPI_OBJECT_REGION_FIELD; 408 409 410 typedef struct acpi_object_bank_field 411 { 412 ACPI_OBJECT_COMMON_HEADER 413 ACPI_COMMON_FIELD_INFO 414 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 415 union acpi_operand_object *BankObj; /* BankSelect Register object */ 416 417 } ACPI_OBJECT_BANK_FIELD; 418 419 420 typedef struct acpi_object_index_field 421 { 422 ACPI_OBJECT_COMMON_HEADER 423 ACPI_COMMON_FIELD_INFO 424 425 /* 426 * No "RegionObj" pointer needed since the Index and Data registers 427 * are each field definitions unto themselves. 428 */ 429 union acpi_operand_object *IndexObj; /* Index register */ 430 union acpi_operand_object *DataObj; /* Data register */ 431 432 } ACPI_OBJECT_INDEX_FIELD; 433 434 435 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 436 437 typedef struct acpi_object_buffer_field 438 { 439 ACPI_OBJECT_COMMON_HEADER 440 ACPI_COMMON_FIELD_INFO 441 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 442 443 } ACPI_OBJECT_BUFFER_FIELD; 444 445 446 /****************************************************************************** 447 * 448 * Objects for handlers 449 * 450 *****************************************************************************/ 451 452 typedef struct acpi_object_notify_handler 453 { 454 ACPI_OBJECT_COMMON_HEADER 455 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 456 ACPI_NOTIFY_HANDLER Handler; 457 void *Context; 458 459 } ACPI_OBJECT_NOTIFY_HANDLER; 460 461 462 typedef struct acpi_object_addr_handler 463 { 464 ACPI_OBJECT_COMMON_HEADER 465 UINT8 SpaceId; 466 UINT8 HandlerFlags; 467 ACPI_ADR_SPACE_HANDLER Handler; 468 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 469 void *Context; 470 ACPI_ADR_SPACE_SETUP Setup; 471 union acpi_operand_object *RegionList; /* regions using this handler */ 472 union acpi_operand_object *Next; 473 474 } ACPI_OBJECT_ADDR_HANDLER; 475 476 /* Flags for address handler (HandlerFlags) */ 477 478 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 479 480 481 /****************************************************************************** 482 * 483 * Special internal objects 484 * 485 *****************************************************************************/ 486 487 /* 488 * The Reference object is used for these opcodes: 489 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp 490 * The Reference.Class differentiates these types. 491 */ 492 typedef struct acpi_object_reference 493 { 494 ACPI_OBJECT_COMMON_HEADER 495 UINT8 Class; /* Reference Class */ 496 UINT8 TargetType; /* Used for Index Op */ 497 UINT8 Reserved; 498 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 499 ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ 500 union acpi_operand_object **Where; /* Target of Index */ 501 UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ 502 503 } ACPI_OBJECT_REFERENCE; 504 505 /* Values for Reference.Class above */ 506 507 typedef enum 508 { 509 ACPI_REFCLASS_LOCAL = 0, /* Method local */ 510 ACPI_REFCLASS_ARG = 1, /* Method argument */ 511 ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ 512 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 513 ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ 514 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 515 ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 516 517 ACPI_REFCLASS_MAX = 6 518 519 } ACPI_REFERENCE_CLASSES; 520 521 522 /* 523 * Extra object is used as additional storage for types that 524 * have AML code in their declarations (TermArgs) that must be 525 * evaluated at run time. 526 * 527 * Currently: Region and FieldUnit types 528 */ 529 typedef struct acpi_object_extra 530 { 531 ACPI_OBJECT_COMMON_HEADER 532 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 533 void *RegionContext; /* Region-specific data */ 534 UINT8 *AmlStart; 535 UINT32 AmlLength; 536 537 } ACPI_OBJECT_EXTRA; 538 539 540 /* Additional data that can be attached to namespace nodes */ 541 542 typedef struct acpi_object_data 543 { 544 ACPI_OBJECT_COMMON_HEADER 545 ACPI_OBJECT_HANDLER Handler; 546 void *Pointer; 547 548 } ACPI_OBJECT_DATA; 549 550 551 /* Structure used when objects are cached for reuse */ 552 553 typedef struct acpi_object_cache_list 554 { 555 ACPI_OBJECT_COMMON_HEADER 556 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 557 558 } ACPI_OBJECT_CACHE_LIST; 559 560 561 /****************************************************************************** 562 * 563 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 564 * 565 *****************************************************************************/ 566 567 typedef union acpi_operand_object 568 { 569 ACPI_OBJECT_COMMON Common; 570 ACPI_OBJECT_INTEGER Integer; 571 ACPI_OBJECT_STRING String; 572 ACPI_OBJECT_BUFFER Buffer; 573 ACPI_OBJECT_PACKAGE Package; 574 ACPI_OBJECT_EVENT Event; 575 ACPI_OBJECT_METHOD Method; 576 ACPI_OBJECT_MUTEX Mutex; 577 ACPI_OBJECT_REGION Region; 578 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 579 ACPI_OBJECT_DEVICE Device; 580 ACPI_OBJECT_POWER_RESOURCE PowerResource; 581 ACPI_OBJECT_PROCESSOR Processor; 582 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 583 ACPI_OBJECT_FIELD_COMMON CommonField; 584 ACPI_OBJECT_REGION_FIELD Field; 585 ACPI_OBJECT_BUFFER_FIELD BufferField; 586 ACPI_OBJECT_BANK_FIELD BankField; 587 ACPI_OBJECT_INDEX_FIELD IndexField; 588 ACPI_OBJECT_NOTIFY_HANDLER Notify; 589 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 590 ACPI_OBJECT_REFERENCE Reference; 591 ACPI_OBJECT_EXTRA Extra; 592 ACPI_OBJECT_DATA Data; 593 ACPI_OBJECT_CACHE_LIST Cache; 594 595 /* 596 * Add namespace node to union in order to simplify code that accepts both 597 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 598 * a common DescriptorType field in order to differentiate them. 599 */ 600 ACPI_NAMESPACE_NODE Node; 601 602 } ACPI_OPERAND_OBJECT; 603 604 605 /****************************************************************************** 606 * 607 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 608 * 609 *****************************************************************************/ 610 611 /* Object descriptor types */ 612 613 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 614 #define ACPI_DESC_TYPE_STATE 0x02 615 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 616 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 617 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 618 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 619 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 620 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 621 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 622 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 623 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 624 #define ACPI_DESC_TYPE_WALK 0x0C 625 #define ACPI_DESC_TYPE_PARSER 0x0D 626 #define ACPI_DESC_TYPE_OPERAND 0x0E 627 #define ACPI_DESC_TYPE_NAMED 0x0F 628 #define ACPI_DESC_TYPE_MAX 0x0F 629 630 631 typedef struct acpi_common_descriptor 632 { 633 void *CommonPointer; 634 UINT8 DescriptorType; /* To differentiate various internal objs */ 635 636 } ACPI_COMMON_DESCRIPTOR; 637 638 typedef union acpi_descriptor 639 { 640 ACPI_COMMON_DESCRIPTOR Common; 641 ACPI_OPERAND_OBJECT Object; 642 ACPI_NAMESPACE_NODE Node; 643 ACPI_PARSE_OBJECT Op; 644 645 } ACPI_DESCRIPTOR; 646 647 #pragma pack() 648 649 #endif /* _ACOBJECT_H */ 650