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 - 2021, 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 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #ifndef _ACOBJECT_H 153 #define _ACOBJECT_H 154 155 /* acpisrc:StructDefs -- for acpisrc conversion */ 156 157 158 /* 159 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 160 * to the interpreter, and to keep track of the various handlers such as 161 * address space handlers and notify handlers. The object is a constant 162 * size in order to allow it to be cached and reused. 163 * 164 * Note: The object is optimized to be aligned and will not work if it is 165 * byte-packed. 166 */ 167 #if ACPI_MACHINE_WIDTH == 64 168 #pragma pack(8) 169 #else 170 #pragma pack(4) 171 #endif 172 173 /******************************************************************************* 174 * 175 * Common Descriptors 176 * 177 ******************************************************************************/ 178 179 /* 180 * Common area for all objects. 181 * 182 * DescriptorType is used to differentiate between internal descriptors, and 183 * must be in the same place across all descriptors 184 * 185 * Note: The DescriptorType and Type fields must appear in the identical 186 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT 187 * structures. 188 */ 189 #define ACPI_OBJECT_COMMON_HEADER \ 190 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 191 UINT8 DescriptorType; /* To differentiate various internal objs */\ 192 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 193 UINT16 ReferenceCount; /* For object deletion management */\ 194 UINT8 Flags; 195 /* 196 * Note: There are 3 bytes available here before the 197 * next natural alignment boundary (for both 32/64 cases) 198 */ 199 200 /* Values for Flag byte above */ 201 202 #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 203 #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 204 #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ 205 #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */ 206 #define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */ 207 #define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */ 208 #define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */ 209 210 211 /****************************************************************************** 212 * 213 * Basic data types 214 * 215 *****************************************************************************/ 216 217 typedef struct acpi_object_common 218 { 219 ACPI_OBJECT_COMMON_HEADER 220 221 } ACPI_OBJECT_COMMON; 222 223 224 typedef struct acpi_object_integer 225 { 226 ACPI_OBJECT_COMMON_HEADER 227 UINT8 Fill[3]; /* Prevent warning on some compilers */ 228 UINT64 Value; 229 230 } ACPI_OBJECT_INTEGER; 231 232 233 /* 234 * Note: The String and Buffer object must be identical through the 235 * pointer and length elements. There is code that depends on this. 236 * 237 * Fields common to both Strings and Buffers 238 */ 239 #define ACPI_COMMON_BUFFER_INFO(_Type) \ 240 _Type *Pointer; \ 241 UINT32 Length; 242 243 244 /* Null terminated, ASCII characters only */ 245 246 typedef struct acpi_object_string 247 { 248 ACPI_OBJECT_COMMON_HEADER 249 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 250 251 } ACPI_OBJECT_STRING; 252 253 254 typedef struct acpi_object_buffer 255 { 256 ACPI_OBJECT_COMMON_HEADER 257 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 258 UINT32 AmlLength; 259 UINT8 *AmlStart; 260 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 261 262 } ACPI_OBJECT_BUFFER; 263 264 265 typedef struct acpi_object_package 266 { 267 ACPI_OBJECT_COMMON_HEADER 268 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 269 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 270 UINT8 *AmlStart; 271 UINT32 AmlLength; 272 UINT32 Count; /* # of elements in package */ 273 274 } ACPI_OBJECT_PACKAGE; 275 276 277 /****************************************************************************** 278 * 279 * Complex data types 280 * 281 *****************************************************************************/ 282 283 typedef struct acpi_object_event 284 { 285 ACPI_OBJECT_COMMON_HEADER 286 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 287 288 } ACPI_OBJECT_EVENT; 289 290 291 typedef struct acpi_object_mutex 292 { 293 ACPI_OBJECT_COMMON_HEADER 294 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 295 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 296 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 297 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 298 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 299 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 300 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 301 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 302 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 303 304 } ACPI_OBJECT_MUTEX; 305 306 307 typedef struct acpi_object_region 308 { 309 ACPI_OBJECT_COMMON_HEADER 310 UINT8 SpaceId; 311 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 312 union acpi_operand_object *Handler; /* Handler for region access */ 313 union acpi_operand_object *Next; 314 ACPI_PHYSICAL_ADDRESS Address; 315 UINT32 Length; 316 void *Pointer; /* Only for data table regions */ 317 318 } ACPI_OBJECT_REGION; 319 320 321 typedef struct acpi_object_method 322 { 323 ACPI_OBJECT_COMMON_HEADER 324 UINT8 InfoFlags; 325 UINT8 ParamCount; 326 UINT8 SyncLevel; 327 union acpi_operand_object *Mutex; 328 union acpi_operand_object *Node; 329 UINT8 *AmlStart; 330 union 331 { 332 ACPI_INTERNAL_METHOD Implementation; 333 union acpi_operand_object *Handler; 334 } Dispatch; 335 336 UINT32 AmlLength; 337 ACPI_OWNER_ID OwnerId; 338 UINT8 ThreadCount; 339 340 } ACPI_OBJECT_METHOD; 341 342 /* Flags for InfoFlags field above */ 343 344 #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 345 #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 346 #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 347 #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 348 #define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ 349 #define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ 350 351 352 /****************************************************************************** 353 * 354 * Objects that can be notified. All share a common NotifyInfo area. 355 * 356 *****************************************************************************/ 357 358 /* 359 * Common fields for objects that support ASL notifications 360 */ 361 #define ACPI_COMMON_NOTIFY_INFO \ 362 union acpi_operand_object *NotifyList[2]; /* Handlers for system/device notifies */\ 363 union acpi_operand_object *Handler; /* Handler for Address space */ 364 365 /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 366 367 typedef struct acpi_object_notify_common 368 { 369 ACPI_OBJECT_COMMON_HEADER 370 ACPI_COMMON_NOTIFY_INFO 371 372 } ACPI_OBJECT_NOTIFY_COMMON; 373 374 375 typedef struct acpi_object_device 376 { 377 ACPI_OBJECT_COMMON_HEADER 378 ACPI_COMMON_NOTIFY_INFO 379 ACPI_GPE_BLOCK_INFO *GpeBlock; 380 381 } ACPI_OBJECT_DEVICE; 382 383 384 typedef struct acpi_object_power_resource 385 { 386 ACPI_OBJECT_COMMON_HEADER 387 ACPI_COMMON_NOTIFY_INFO 388 UINT32 SystemLevel; 389 UINT32 ResourceOrder; 390 391 } ACPI_OBJECT_POWER_RESOURCE; 392 393 394 typedef struct acpi_object_processor 395 { 396 ACPI_OBJECT_COMMON_HEADER 397 398 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 399 400 UINT8 ProcId; 401 UINT8 Length; 402 ACPI_COMMON_NOTIFY_INFO 403 ACPI_IO_ADDRESS Address; 404 405 } ACPI_OBJECT_PROCESSOR; 406 407 408 typedef struct acpi_object_thermal_zone 409 { 410 ACPI_OBJECT_COMMON_HEADER 411 ACPI_COMMON_NOTIFY_INFO 412 413 } ACPI_OBJECT_THERMAL_ZONE; 414 415 416 /****************************************************************************** 417 * 418 * Fields. All share a common header/info field. 419 * 420 *****************************************************************************/ 421 422 /* 423 * Common bitfield for the field objects 424 * "Field Datum" -- a datum from the actual field object 425 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 426 */ 427 #define ACPI_COMMON_FIELD_INFO \ 428 UINT8 FieldFlags; /* Access, update, and lock bits */\ 429 UINT8 Attribute; /* From AccessAs keyword */\ 430 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 431 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 432 UINT32 BitLength; /* Length of field in bits */\ 433 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 434 UINT32 Value; /* Value to store into the Bank or Index register */\ 435 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 436 UINT8 AccessLength; /* For serial regions/fields */ 437 438 /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 439 440 typedef struct acpi_object_field_common 441 { 442 ACPI_OBJECT_COMMON_HEADER 443 ACPI_COMMON_FIELD_INFO 444 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 445 446 } ACPI_OBJECT_FIELD_COMMON; 447 448 449 typedef struct acpi_object_region_field 450 { 451 ACPI_OBJECT_COMMON_HEADER 452 ACPI_COMMON_FIELD_INFO 453 UINT16 ResourceLength; 454 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 455 UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ 456 UINT16 PinNumberIndex; /* Index relative to previous Connection/Template */ 457 UINT8 *InternalPccBuffer; /* Internal buffer for fields associated with PCC */ 458 459 } ACPI_OBJECT_REGION_FIELD; 460 461 462 typedef struct acpi_object_bank_field 463 { 464 ACPI_OBJECT_COMMON_HEADER 465 ACPI_COMMON_FIELD_INFO 466 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 467 union acpi_operand_object *BankObj; /* BankSelect Register object */ 468 469 } ACPI_OBJECT_BANK_FIELD; 470 471 472 typedef struct acpi_object_index_field 473 { 474 ACPI_OBJECT_COMMON_HEADER 475 ACPI_COMMON_FIELD_INFO 476 477 /* 478 * No "RegionObj" pointer needed since the Index and Data registers 479 * are each field definitions unto themselves. 480 */ 481 union acpi_operand_object *IndexObj; /* Index register */ 482 union acpi_operand_object *DataObj; /* Data register */ 483 484 } ACPI_OBJECT_INDEX_FIELD; 485 486 487 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 488 489 typedef struct acpi_object_buffer_field 490 { 491 ACPI_OBJECT_COMMON_HEADER 492 ACPI_COMMON_FIELD_INFO 493 BOOLEAN IsCreateField; /* Special case for objects created by CreateField() */ 494 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 495 496 } ACPI_OBJECT_BUFFER_FIELD; 497 498 499 /****************************************************************************** 500 * 501 * Objects for handlers 502 * 503 *****************************************************************************/ 504 505 typedef struct acpi_object_notify_handler 506 { 507 ACPI_OBJECT_COMMON_HEADER 508 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 509 UINT32 HandlerType; /* Type: Device/System/Both */ 510 ACPI_NOTIFY_HANDLER Handler; /* Handler address */ 511 void *Context; 512 union acpi_operand_object *Next[2]; /* Device and System handler lists */ 513 514 } ACPI_OBJECT_NOTIFY_HANDLER; 515 516 517 typedef struct acpi_object_addr_handler 518 { 519 ACPI_OBJECT_COMMON_HEADER 520 UINT8 SpaceId; 521 UINT8 HandlerFlags; 522 ACPI_ADR_SPACE_HANDLER Handler; 523 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 524 void *Context; 525 ACPI_MUTEX ContextMutex; 526 ACPI_ADR_SPACE_SETUP Setup; 527 union acpi_operand_object *RegionList; /* Regions using this handler */ 528 union acpi_operand_object *Next; 529 530 } ACPI_OBJECT_ADDR_HANDLER; 531 532 /* Flags for address handler (HandlerFlags) */ 533 534 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 535 536 537 /****************************************************************************** 538 * 539 * Special internal objects 540 * 541 *****************************************************************************/ 542 543 /* 544 * The Reference object is used for these opcodes: 545 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp 546 * The Reference.Class differentiates these types. 547 */ 548 typedef struct acpi_object_reference 549 { 550 ACPI_OBJECT_COMMON_HEADER 551 UINT8 Class; /* Reference Class */ 552 UINT8 TargetType; /* Used for Index Op */ 553 UINT8 Resolved; /* Reference has been resolved to a value */ 554 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 555 ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ 556 union acpi_operand_object **Where; /* Target of Index */ 557 UINT8 *IndexPointer; /* Used for Buffers and Strings */ 558 UINT8 *Aml; /* Used for deferred resolution of the ref */ 559 UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ 560 561 } ACPI_OBJECT_REFERENCE; 562 563 /* Values for Reference.Class above */ 564 565 typedef enum 566 { 567 ACPI_REFCLASS_LOCAL = 0, /* Method local */ 568 ACPI_REFCLASS_ARG = 1, /* Method argument */ 569 ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ 570 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 571 ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ 572 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 573 ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 574 575 ACPI_REFCLASS_MAX = 6 576 577 } ACPI_REFERENCE_CLASSES; 578 579 /* 580 * Extra object is used as additional storage for types that 581 * have AML code in their declarations (TermArgs) that must be 582 * evaluated at run time. 583 * 584 * Currently: Region and FieldUnit types 585 */ 586 typedef struct acpi_object_extra 587 { 588 ACPI_OBJECT_COMMON_HEADER 589 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 590 ACPI_NAMESPACE_NODE *ScopeNode; 591 void *RegionContext; /* Region-specific data */ 592 UINT8 *AmlStart; 593 UINT32 AmlLength; 594 595 } ACPI_OBJECT_EXTRA; 596 597 598 /* Additional data that can be attached to namespace nodes */ 599 600 typedef struct acpi_object_data 601 { 602 ACPI_OBJECT_COMMON_HEADER 603 ACPI_OBJECT_HANDLER Handler; 604 void *Pointer; 605 606 } ACPI_OBJECT_DATA; 607 608 609 /* Structure used when objects are cached for reuse */ 610 611 typedef struct acpi_object_cache_list 612 { 613 ACPI_OBJECT_COMMON_HEADER 614 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 615 616 } ACPI_OBJECT_CACHE_LIST; 617 618 619 /****************************************************************************** 620 * 621 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 622 * 623 *****************************************************************************/ 624 625 typedef union acpi_operand_object 626 { 627 ACPI_OBJECT_COMMON Common; 628 ACPI_OBJECT_INTEGER Integer; 629 ACPI_OBJECT_STRING String; 630 ACPI_OBJECT_BUFFER Buffer; 631 ACPI_OBJECT_PACKAGE Package; 632 ACPI_OBJECT_EVENT Event; 633 ACPI_OBJECT_METHOD Method; 634 ACPI_OBJECT_MUTEX Mutex; 635 ACPI_OBJECT_REGION Region; 636 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 637 ACPI_OBJECT_DEVICE Device; 638 ACPI_OBJECT_POWER_RESOURCE PowerResource; 639 ACPI_OBJECT_PROCESSOR Processor; 640 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 641 ACPI_OBJECT_FIELD_COMMON CommonField; 642 ACPI_OBJECT_REGION_FIELD Field; 643 ACPI_OBJECT_BUFFER_FIELD BufferField; 644 ACPI_OBJECT_BANK_FIELD BankField; 645 ACPI_OBJECT_INDEX_FIELD IndexField; 646 ACPI_OBJECT_NOTIFY_HANDLER Notify; 647 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 648 ACPI_OBJECT_REFERENCE Reference; 649 ACPI_OBJECT_EXTRA Extra; 650 ACPI_OBJECT_DATA Data; 651 ACPI_OBJECT_CACHE_LIST Cache; 652 653 /* 654 * Add namespace node to union in order to simplify code that accepts both 655 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 656 * a common DescriptorType field in order to differentiate them. 657 */ 658 ACPI_NAMESPACE_NODE Node; 659 660 } ACPI_OPERAND_OBJECT; 661 662 663 /****************************************************************************** 664 * 665 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 666 * 667 *****************************************************************************/ 668 669 /* Object descriptor types */ 670 671 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 672 #define ACPI_DESC_TYPE_STATE 0x02 673 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 674 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 675 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 676 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 677 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 678 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 679 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 680 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 681 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 682 #define ACPI_DESC_TYPE_WALK 0x0C 683 #define ACPI_DESC_TYPE_PARSER 0x0D 684 #define ACPI_DESC_TYPE_OPERAND 0x0E 685 #define ACPI_DESC_TYPE_NAMED 0x0F 686 #define ACPI_DESC_TYPE_MAX 0x0F 687 688 689 typedef struct acpi_common_descriptor 690 { 691 void *CommonPointer; 692 UINT8 DescriptorType; /* To differentiate various internal objs */ 693 694 } ACPI_COMMON_DESCRIPTOR; 695 696 typedef union acpi_descriptor 697 { 698 ACPI_COMMON_DESCRIPTOR Common; 699 ACPI_OPERAND_OBJECT Object; 700 ACPI_NAMESPACE_NODE Node; 701 ACPI_PARSE_OBJECT Op; 702 703 } ACPI_DESCRIPTOR; 704 705 #pragma pack() 706 707 #endif /* _ACOBJECT_H */ 708