acobject.h revision 1.1.1.15
1 /****************************************************************************** 2 * 3 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2021, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #ifndef _ACOBJECT_H 45 #define _ACOBJECT_H 46 47 /* acpisrc:StructDefs -- for acpisrc conversion */ 48 49 50 /* 51 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 52 * to the interpreter, and to keep track of the various handlers such as 53 * address space handlers and notify handlers. The object is a constant 54 * size in order to allow it to be cached and reused. 55 * 56 * Note: The object is optimized to be aligned and will not work if it is 57 * byte-packed. 58 */ 59 #if ACPI_MACHINE_WIDTH == 64 60 #pragma pack(8) 61 #else 62 #pragma pack(4) 63 #endif 64 65 /******************************************************************************* 66 * 67 * Common Descriptors 68 * 69 ******************************************************************************/ 70 71 /* 72 * Common area for all objects. 73 * 74 * DescriptorType is used to differentiate between internal descriptors, and 75 * must be in the same place across all descriptors 76 * 77 * Note: The DescriptorType and Type fields must appear in the identical 78 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT 79 * structures. 80 */ 81 #define ACPI_OBJECT_COMMON_HEADER \ 82 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 83 UINT8 DescriptorType; /* To differentiate various internal objs */\ 84 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 85 UINT16 ReferenceCount; /* For object deletion management */\ 86 UINT8 Flags; 87 /* 88 * Note: There are 3 bytes available here before the 89 * next natural alignment boundary (for both 32/64 cases) 90 */ 91 92 /* Values for Flag byte above */ 93 94 #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 95 #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 96 #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ 97 #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */ 98 #define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */ 99 #define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */ 100 #define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */ 101 102 103 /****************************************************************************** 104 * 105 * Basic data types 106 * 107 *****************************************************************************/ 108 109 typedef struct acpi_object_common 110 { 111 ACPI_OBJECT_COMMON_HEADER 112 113 } ACPI_OBJECT_COMMON; 114 115 116 typedef struct acpi_object_integer 117 { 118 ACPI_OBJECT_COMMON_HEADER 119 UINT8 Fill[3]; /* Prevent warning on some compilers */ 120 UINT64 Value; 121 122 } ACPI_OBJECT_INTEGER; 123 124 125 /* 126 * Note: The String and Buffer object must be identical through the 127 * pointer and length elements. There is code that depends on this. 128 * 129 * Fields common to both Strings and Buffers 130 */ 131 #define ACPI_COMMON_BUFFER_INFO(_Type) \ 132 _Type *Pointer; \ 133 UINT32 Length; 134 135 136 /* Null terminated, ASCII characters only */ 137 138 typedef struct acpi_object_string 139 { 140 ACPI_OBJECT_COMMON_HEADER 141 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 142 143 } ACPI_OBJECT_STRING; 144 145 146 typedef struct acpi_object_buffer 147 { 148 ACPI_OBJECT_COMMON_HEADER 149 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 150 UINT32 AmlLength; 151 UINT8 *AmlStart; 152 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 153 154 } ACPI_OBJECT_BUFFER; 155 156 157 typedef struct acpi_object_package 158 { 159 ACPI_OBJECT_COMMON_HEADER 160 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 161 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 162 UINT8 *AmlStart; 163 UINT32 AmlLength; 164 UINT32 Count; /* # of elements in package */ 165 166 } ACPI_OBJECT_PACKAGE; 167 168 169 /****************************************************************************** 170 * 171 * Complex data types 172 * 173 *****************************************************************************/ 174 175 typedef struct acpi_object_event 176 { 177 ACPI_OBJECT_COMMON_HEADER 178 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 179 180 } ACPI_OBJECT_EVENT; 181 182 183 typedef struct acpi_object_mutex 184 { 185 ACPI_OBJECT_COMMON_HEADER 186 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 187 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 188 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 189 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 190 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 191 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 192 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 193 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 194 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 195 196 } ACPI_OBJECT_MUTEX; 197 198 199 typedef struct acpi_object_region 200 { 201 ACPI_OBJECT_COMMON_HEADER 202 UINT8 SpaceId; 203 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 204 union acpi_operand_object *Handler; /* Handler for region access */ 205 union acpi_operand_object *Next; 206 ACPI_PHYSICAL_ADDRESS Address; 207 UINT32 Length; 208 209 } ACPI_OBJECT_REGION; 210 211 212 typedef struct acpi_object_method 213 { 214 ACPI_OBJECT_COMMON_HEADER 215 UINT8 InfoFlags; 216 UINT8 ParamCount; 217 UINT8 SyncLevel; 218 union acpi_operand_object *Mutex; 219 union acpi_operand_object *Node; 220 UINT8 *AmlStart; 221 union 222 { 223 ACPI_INTERNAL_METHOD Implementation; 224 union acpi_operand_object *Handler; 225 } Dispatch; 226 227 UINT32 AmlLength; 228 ACPI_OWNER_ID OwnerId; 229 UINT8 ThreadCount; 230 231 } ACPI_OBJECT_METHOD; 232 233 /* Flags for InfoFlags field above */ 234 235 #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 236 #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 237 #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 238 #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 239 #define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ 240 #define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ 241 242 243 /****************************************************************************** 244 * 245 * Objects that can be notified. All share a common NotifyInfo area. 246 * 247 *****************************************************************************/ 248 249 /* 250 * Common fields for objects that support ASL notifications 251 */ 252 #define ACPI_COMMON_NOTIFY_INFO \ 253 union acpi_operand_object *NotifyList[2]; /* Handlers for system/device notifies */\ 254 union acpi_operand_object *Handler; /* Handler for Address space */ 255 256 /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 257 258 typedef struct acpi_object_notify_common 259 { 260 ACPI_OBJECT_COMMON_HEADER 261 ACPI_COMMON_NOTIFY_INFO 262 263 } ACPI_OBJECT_NOTIFY_COMMON; 264 265 266 typedef struct acpi_object_device 267 { 268 ACPI_OBJECT_COMMON_HEADER 269 ACPI_COMMON_NOTIFY_INFO 270 ACPI_GPE_BLOCK_INFO *GpeBlock; 271 272 } ACPI_OBJECT_DEVICE; 273 274 275 typedef struct acpi_object_power_resource 276 { 277 ACPI_OBJECT_COMMON_HEADER 278 ACPI_COMMON_NOTIFY_INFO 279 UINT32 SystemLevel; 280 UINT32 ResourceOrder; 281 282 } ACPI_OBJECT_POWER_RESOURCE; 283 284 285 typedef struct acpi_object_processor 286 { 287 ACPI_OBJECT_COMMON_HEADER 288 289 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 290 291 UINT8 ProcId; 292 UINT8 Length; 293 ACPI_COMMON_NOTIFY_INFO 294 ACPI_IO_ADDRESS Address; 295 296 } ACPI_OBJECT_PROCESSOR; 297 298 299 typedef struct acpi_object_thermal_zone 300 { 301 ACPI_OBJECT_COMMON_HEADER 302 ACPI_COMMON_NOTIFY_INFO 303 304 } ACPI_OBJECT_THERMAL_ZONE; 305 306 307 /****************************************************************************** 308 * 309 * Fields. All share a common header/info field. 310 * 311 *****************************************************************************/ 312 313 /* 314 * Common bitfield for the field objects 315 * "Field Datum" -- a datum from the actual field object 316 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 317 */ 318 #define ACPI_COMMON_FIELD_INFO \ 319 UINT8 FieldFlags; /* Access, update, and lock bits */\ 320 UINT8 Attribute; /* From AccessAs keyword */\ 321 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 322 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 323 UINT32 BitLength; /* Length of field in bits */\ 324 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 325 UINT32 Value; /* Value to store into the Bank or Index register */\ 326 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 327 UINT8 AccessLength; /* For serial regions/fields */ 328 329 /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 330 331 typedef struct acpi_object_field_common 332 { 333 ACPI_OBJECT_COMMON_HEADER 334 ACPI_COMMON_FIELD_INFO 335 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 336 337 } ACPI_OBJECT_FIELD_COMMON; 338 339 340 typedef struct acpi_object_region_field 341 { 342 ACPI_OBJECT_COMMON_HEADER 343 ACPI_COMMON_FIELD_INFO 344 UINT16 ResourceLength; 345 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 346 UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ 347 UINT16 PinNumberIndex; /* Index relative to previous Connection/Template */ 348 UINT8 *InternalPccBuffer; /* Internal buffer for fields associated with PCC */ 349 350 } ACPI_OBJECT_REGION_FIELD; 351 352 353 typedef struct acpi_object_bank_field 354 { 355 ACPI_OBJECT_COMMON_HEADER 356 ACPI_COMMON_FIELD_INFO 357 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 358 union acpi_operand_object *BankObj; /* BankSelect Register object */ 359 360 } ACPI_OBJECT_BANK_FIELD; 361 362 363 typedef struct acpi_object_index_field 364 { 365 ACPI_OBJECT_COMMON_HEADER 366 ACPI_COMMON_FIELD_INFO 367 368 /* 369 * No "RegionObj" pointer needed since the Index and Data registers 370 * are each field definitions unto themselves. 371 */ 372 union acpi_operand_object *IndexObj; /* Index register */ 373 union acpi_operand_object *DataObj; /* Data register */ 374 375 } ACPI_OBJECT_INDEX_FIELD; 376 377 378 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 379 380 typedef struct acpi_object_buffer_field 381 { 382 ACPI_OBJECT_COMMON_HEADER 383 ACPI_COMMON_FIELD_INFO 384 BOOLEAN IsCreateField; /* Special case for objects created by CreateField() */ 385 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 386 387 } ACPI_OBJECT_BUFFER_FIELD; 388 389 390 /****************************************************************************** 391 * 392 * Objects for handlers 393 * 394 *****************************************************************************/ 395 396 typedef struct acpi_object_notify_handler 397 { 398 ACPI_OBJECT_COMMON_HEADER 399 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 400 UINT32 HandlerType; /* Type: Device/System/Both */ 401 ACPI_NOTIFY_HANDLER Handler; /* Handler address */ 402 void *Context; 403 union acpi_operand_object *Next[2]; /* Device and System handler lists */ 404 405 } ACPI_OBJECT_NOTIFY_HANDLER; 406 407 408 typedef struct acpi_object_addr_handler 409 { 410 ACPI_OBJECT_COMMON_HEADER 411 UINT8 SpaceId; 412 UINT8 HandlerFlags; 413 ACPI_ADR_SPACE_HANDLER Handler; 414 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 415 void *Context; 416 ACPI_MUTEX ContextMutex; 417 ACPI_ADR_SPACE_SETUP Setup; 418 union acpi_operand_object *RegionList; /* Regions using this handler */ 419 union acpi_operand_object *Next; 420 421 } ACPI_OBJECT_ADDR_HANDLER; 422 423 /* Flags for address handler (HandlerFlags) */ 424 425 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 426 427 428 /****************************************************************************** 429 * 430 * Special internal objects 431 * 432 *****************************************************************************/ 433 434 /* 435 * The Reference object is used for these opcodes: 436 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp 437 * The Reference.Class differentiates these types. 438 */ 439 typedef struct acpi_object_reference 440 { 441 ACPI_OBJECT_COMMON_HEADER 442 UINT8 Class; /* Reference Class */ 443 UINT8 TargetType; /* Used for Index Op */ 444 UINT8 Resolved; /* Reference has been resolved to a value */ 445 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 446 ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ 447 union acpi_operand_object **Where; /* Target of Index */ 448 UINT8 *IndexPointer; /* Used for Buffers and Strings */ 449 UINT8 *Aml; /* Used for deferred resolution of the ref */ 450 UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ 451 452 } ACPI_OBJECT_REFERENCE; 453 454 /* Values for Reference.Class above */ 455 456 typedef enum 457 { 458 ACPI_REFCLASS_LOCAL = 0, /* Method local */ 459 ACPI_REFCLASS_ARG = 1, /* Method argument */ 460 ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ 461 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 462 ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ 463 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 464 ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 465 466 ACPI_REFCLASS_MAX = 6 467 468 } ACPI_REFERENCE_CLASSES; 469 470 /* 471 * Extra object is used as additional storage for types that 472 * have AML code in their declarations (TermArgs) that must be 473 * evaluated at run time. 474 * 475 * Currently: Region and FieldUnit types 476 */ 477 typedef struct acpi_object_extra 478 { 479 ACPI_OBJECT_COMMON_HEADER 480 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 481 ACPI_NAMESPACE_NODE *ScopeNode; 482 void *RegionContext; /* Region-specific data */ 483 UINT8 *AmlStart; 484 UINT32 AmlLength; 485 486 } ACPI_OBJECT_EXTRA; 487 488 489 /* Additional data that can be attached to namespace nodes */ 490 491 typedef struct acpi_object_data 492 { 493 ACPI_OBJECT_COMMON_HEADER 494 ACPI_OBJECT_HANDLER Handler; 495 void *Pointer; 496 497 } ACPI_OBJECT_DATA; 498 499 500 /* Structure used when objects are cached for reuse */ 501 502 typedef struct acpi_object_cache_list 503 { 504 ACPI_OBJECT_COMMON_HEADER 505 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 506 507 } ACPI_OBJECT_CACHE_LIST; 508 509 510 /****************************************************************************** 511 * 512 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 513 * 514 *****************************************************************************/ 515 516 typedef union acpi_operand_object 517 { 518 ACPI_OBJECT_COMMON Common; 519 ACPI_OBJECT_INTEGER Integer; 520 ACPI_OBJECT_STRING String; 521 ACPI_OBJECT_BUFFER Buffer; 522 ACPI_OBJECT_PACKAGE Package; 523 ACPI_OBJECT_EVENT Event; 524 ACPI_OBJECT_METHOD Method; 525 ACPI_OBJECT_MUTEX Mutex; 526 ACPI_OBJECT_REGION Region; 527 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 528 ACPI_OBJECT_DEVICE Device; 529 ACPI_OBJECT_POWER_RESOURCE PowerResource; 530 ACPI_OBJECT_PROCESSOR Processor; 531 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 532 ACPI_OBJECT_FIELD_COMMON CommonField; 533 ACPI_OBJECT_REGION_FIELD Field; 534 ACPI_OBJECT_BUFFER_FIELD BufferField; 535 ACPI_OBJECT_BANK_FIELD BankField; 536 ACPI_OBJECT_INDEX_FIELD IndexField; 537 ACPI_OBJECT_NOTIFY_HANDLER Notify; 538 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 539 ACPI_OBJECT_REFERENCE Reference; 540 ACPI_OBJECT_EXTRA Extra; 541 ACPI_OBJECT_DATA Data; 542 ACPI_OBJECT_CACHE_LIST Cache; 543 544 /* 545 * Add namespace node to union in order to simplify code that accepts both 546 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 547 * a common DescriptorType field in order to differentiate them. 548 */ 549 ACPI_NAMESPACE_NODE Node; 550 551 } ACPI_OPERAND_OBJECT; 552 553 554 /****************************************************************************** 555 * 556 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 557 * 558 *****************************************************************************/ 559 560 /* Object descriptor types */ 561 562 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 563 #define ACPI_DESC_TYPE_STATE 0x02 564 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 565 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 566 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 567 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 568 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 569 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 570 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 571 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 572 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 573 #define ACPI_DESC_TYPE_WALK 0x0C 574 #define ACPI_DESC_TYPE_PARSER 0x0D 575 #define ACPI_DESC_TYPE_OPERAND 0x0E 576 #define ACPI_DESC_TYPE_NAMED 0x0F 577 #define ACPI_DESC_TYPE_MAX 0x0F 578 579 580 typedef struct acpi_common_descriptor 581 { 582 void *CommonPointer; 583 UINT8 DescriptorType; /* To differentiate various internal objs */ 584 585 } ACPI_COMMON_DESCRIPTOR; 586 587 typedef union acpi_descriptor 588 { 589 ACPI_COMMON_DESCRIPTOR Common; 590 ACPI_OPERAND_OBJECT Object; 591 ACPI_NAMESPACE_NODE Node; 592 ACPI_PARSE_OBJECT Op; 593 594 } ACPI_DESCRIPTOR; 595 596 #pragma pack() 597 598 #endif /* _ACOBJECT_H */ 599
Indexes created Sat Oct 11 16:09:52 GMT 2025