acobject.h revision 1.1.1.2.20.1
1 /****************************************************************************** 2 * 3 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2013, 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 MERCHANTIBILITY 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, _REG was run */ 98 #define AOPOBJ_SETUP_COMPLETE 0x10 /* Region setup is complete */ 99 #define AOPOBJ_INVALID 0x20 /* Host OS won't allow a Region address */ 100 101 102 /****************************************************************************** 103 * 104 * Basic data types 105 * 106 *****************************************************************************/ 107 108 typedef struct acpi_object_common 109 { 110 ACPI_OBJECT_COMMON_HEADER 111 112 } ACPI_OBJECT_COMMON; 113 114 115 typedef struct acpi_object_integer 116 { 117 ACPI_OBJECT_COMMON_HEADER 118 UINT8 Fill[3]; /* Prevent warning on some compilers */ 119 UINT64 Value; 120 121 } ACPI_OBJECT_INTEGER; 122 123 124 /* 125 * Note: The String and Buffer object must be identical through the 126 * pointer and length elements. There is code that depends on this. 127 * 128 * Fields common to both Strings and Buffers 129 */ 130 #define ACPI_COMMON_BUFFER_INFO(_Type) \ 131 _Type *Pointer; \ 132 UINT32 Length; 133 134 135 typedef struct acpi_object_string /* Null terminated, ASCII characters only */ 136 { 137 ACPI_OBJECT_COMMON_HEADER 138 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 139 140 } ACPI_OBJECT_STRING; 141 142 143 typedef struct acpi_object_buffer 144 { 145 ACPI_OBJECT_COMMON_HEADER 146 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 147 UINT32 AmlLength; 148 UINT8 *AmlStart; 149 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 150 151 } ACPI_OBJECT_BUFFER; 152 153 154 typedef struct acpi_object_package 155 { 156 ACPI_OBJECT_COMMON_HEADER 157 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 158 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 159 UINT8 *AmlStart; 160 UINT32 AmlLength; 161 UINT32 Count; /* # of elements in package */ 162 163 } ACPI_OBJECT_PACKAGE; 164 165 166 /****************************************************************************** 167 * 168 * Complex data types 169 * 170 *****************************************************************************/ 171 172 typedef struct acpi_object_event 173 { 174 ACPI_OBJECT_COMMON_HEADER 175 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 176 177 } ACPI_OBJECT_EVENT; 178 179 180 typedef struct acpi_object_mutex 181 { 182 ACPI_OBJECT_COMMON_HEADER 183 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 184 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 185 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 186 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 187 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 188 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 189 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 190 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 191 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 192 193 } ACPI_OBJECT_MUTEX; 194 195 196 typedef struct acpi_object_region 197 { 198 ACPI_OBJECT_COMMON_HEADER 199 UINT8 SpaceId; 200 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 201 union acpi_operand_object *Handler; /* Handler for region access */ 202 union acpi_operand_object *Next; 203 ACPI_PHYSICAL_ADDRESS Address; 204 UINT32 Length; 205 206 } ACPI_OBJECT_REGION; 207 208 209 typedef struct acpi_object_method 210 { 211 ACPI_OBJECT_COMMON_HEADER 212 UINT8 InfoFlags; 213 UINT8 ParamCount; 214 UINT8 SyncLevel; 215 union acpi_operand_object *Mutex; 216 UINT8 *AmlStart; 217 union 218 { 219 ACPI_INTERNAL_METHOD Implementation; 220 union acpi_operand_object *Handler; 221 } Dispatch; 222 223 UINT32 AmlLength; 224 UINT8 ThreadCount; 225 ACPI_OWNER_ID OwnerId; 226 227 } ACPI_OBJECT_METHOD; 228 229 /* Flags for InfoFlags field above */ 230 231 #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 232 #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 233 #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 234 #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 235 #define ACPI_METHOD_MODIFIED_NAMESPACE 0x10 /* Method modified the namespace */ 236 237 238 /****************************************************************************** 239 * 240 * Objects that can be notified. All share a common NotifyInfo area. 241 * 242 *****************************************************************************/ 243 244 /* 245 * Common fields for objects that support ASL notifications 246 */ 247 #define ACPI_COMMON_NOTIFY_INFO \ 248 union acpi_operand_object *NotifyList[2]; /* Handlers for system/device notifies */\ 249 union acpi_operand_object *Handler; /* Handler for Address space */ 250 251 252 typedef struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 253 { 254 ACPI_OBJECT_COMMON_HEADER 255 ACPI_COMMON_NOTIFY_INFO 256 257 } ACPI_OBJECT_NOTIFY_COMMON; 258 259 260 typedef struct acpi_object_device 261 { 262 ACPI_OBJECT_COMMON_HEADER 263 ACPI_COMMON_NOTIFY_INFO 264 ACPI_GPE_BLOCK_INFO *GpeBlock; 265 266 } ACPI_OBJECT_DEVICE; 267 268 269 typedef struct acpi_object_power_resource 270 { 271 ACPI_OBJECT_COMMON_HEADER 272 ACPI_COMMON_NOTIFY_INFO 273 UINT32 SystemLevel; 274 UINT32 ResourceOrder; 275 276 } ACPI_OBJECT_POWER_RESOURCE; 277 278 279 typedef struct acpi_object_processor 280 { 281 ACPI_OBJECT_COMMON_HEADER 282 283 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 284 285 UINT8 ProcId; 286 UINT8 Length; 287 ACPI_COMMON_NOTIFY_INFO 288 ACPI_IO_ADDRESS Address; 289 290 } ACPI_OBJECT_PROCESSOR; 291 292 293 typedef struct acpi_object_thermal_zone 294 { 295 ACPI_OBJECT_COMMON_HEADER 296 ACPI_COMMON_NOTIFY_INFO 297 298 } ACPI_OBJECT_THERMAL_ZONE; 299 300 301 /****************************************************************************** 302 * 303 * Fields. All share a common header/info field. 304 * 305 *****************************************************************************/ 306 307 /* 308 * Common bitfield for the field objects 309 * "Field Datum" -- a datum from the actual field object 310 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 311 */ 312 #define ACPI_COMMON_FIELD_INFO \ 313 UINT8 FieldFlags; /* Access, update, and lock bits */\ 314 UINT8 Attribute; /* From AccessAs keyword */\ 315 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 316 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 317 UINT32 BitLength; /* Length of field in bits */\ 318 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 319 UINT32 Value; /* Value to store into the Bank or Index register */\ 320 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 321 UINT8 AccessLength; /* For serial regions/fields */ 322 323 324 typedef struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 325 { 326 ACPI_OBJECT_COMMON_HEADER 327 ACPI_COMMON_FIELD_INFO 328 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 329 330 } ACPI_OBJECT_FIELD_COMMON; 331 332 333 typedef struct acpi_object_region_field 334 { 335 ACPI_OBJECT_COMMON_HEADER 336 ACPI_COMMON_FIELD_INFO 337 UINT16 ResourceLength; 338 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 339 UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ 340 341 } ACPI_OBJECT_REGION_FIELD; 342 343 344 typedef struct acpi_object_bank_field 345 { 346 ACPI_OBJECT_COMMON_HEADER 347 ACPI_COMMON_FIELD_INFO 348 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 349 union acpi_operand_object *BankObj; /* BankSelect Register object */ 350 351 } ACPI_OBJECT_BANK_FIELD; 352 353 354 typedef struct acpi_object_index_field 355 { 356 ACPI_OBJECT_COMMON_HEADER 357 ACPI_COMMON_FIELD_INFO 358 359 /* 360 * No "RegionObj" pointer needed since the Index and Data registers 361 * are each field definitions unto themselves. 362 */ 363 union acpi_operand_object *IndexObj; /* Index register */ 364 union acpi_operand_object *DataObj; /* Data register */ 365 366 } ACPI_OBJECT_INDEX_FIELD; 367 368 369 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 370 371 typedef struct acpi_object_buffer_field 372 { 373 ACPI_OBJECT_COMMON_HEADER 374 ACPI_COMMON_FIELD_INFO 375 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 376 377 } ACPI_OBJECT_BUFFER_FIELD; 378 379 380 /****************************************************************************** 381 * 382 * Objects for handlers 383 * 384 *****************************************************************************/ 385 386 typedef struct acpi_object_notify_handler 387 { 388 ACPI_OBJECT_COMMON_HEADER 389 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 390 UINT32 HandlerType; /* Type: Device/System/Both */ 391 ACPI_NOTIFY_HANDLER Handler; /* Handler address */ 392 void *Context; 393 union acpi_operand_object *Next[2]; /* Device and System handler lists */ 394 395 } ACPI_OBJECT_NOTIFY_HANDLER; 396 397 398 typedef struct acpi_object_addr_handler 399 { 400 ACPI_OBJECT_COMMON_HEADER 401 UINT8 SpaceId; 402 UINT8 HandlerFlags; 403 ACPI_ADR_SPACE_HANDLER Handler; 404 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 405 void *Context; 406 ACPI_ADR_SPACE_SETUP Setup; 407 union acpi_operand_object *RegionList; /* Regions using this handler */ 408 union acpi_operand_object *Next; 409 410 } ACPI_OBJECT_ADDR_HANDLER; 411 412 /* Flags for address handler (HandlerFlags) */ 413 414 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 415 416 417 /****************************************************************************** 418 * 419 * Special internal objects 420 * 421 *****************************************************************************/ 422 423 /* 424 * The Reference object is used for these opcodes: 425 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp 426 * The Reference.Class differentiates these types. 427 */ 428 typedef struct acpi_object_reference 429 { 430 ACPI_OBJECT_COMMON_HEADER 431 UINT8 Class; /* Reference Class */ 432 UINT8 TargetType; /* Used for Index Op */ 433 UINT8 Reserved; 434 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 435 ACPI_NAMESPACE_NODE *Node; /* RefOf or Namepath */ 436 union acpi_operand_object **Where; /* Target of Index */ 437 UINT32 Value; /* Used for Local/Arg/Index/DdbHandle */ 438 439 } ACPI_OBJECT_REFERENCE; 440 441 /* Values for Reference.Class above */ 442 443 typedef enum 444 { 445 ACPI_REFCLASS_LOCAL = 0, /* Method local */ 446 ACPI_REFCLASS_ARG = 1, /* Method argument */ 447 ACPI_REFCLASS_REFOF = 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */ 448 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 449 ACPI_REFCLASS_TABLE = 4, /* DdbHandle - Load(), LoadTable() */ 450 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 451 ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 452 453 ACPI_REFCLASS_MAX = 6 454 455 } ACPI_REFERENCE_CLASSES; 456 457 458 /* 459 * Extra object is used as additional storage for types that 460 * have AML code in their declarations (TermArgs) that must be 461 * evaluated at run time. 462 * 463 * Currently: Region and FieldUnit types 464 */ 465 typedef struct acpi_object_extra 466 { 467 ACPI_OBJECT_COMMON_HEADER 468 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 469 ACPI_NAMESPACE_NODE *ScopeNode; 470 void *RegionContext; /* Region-specific data */ 471 UINT8 *AmlStart; 472 UINT32 AmlLength; 473 474 } ACPI_OBJECT_EXTRA; 475 476 477 /* Additional data that can be attached to namespace nodes */ 478 479 typedef struct acpi_object_data 480 { 481 ACPI_OBJECT_COMMON_HEADER 482 ACPI_OBJECT_HANDLER Handler; 483 void *Pointer; 484 485 } ACPI_OBJECT_DATA; 486 487 488 /* Structure used when objects are cached for reuse */ 489 490 typedef struct acpi_object_cache_list 491 { 492 ACPI_OBJECT_COMMON_HEADER 493 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 494 495 } ACPI_OBJECT_CACHE_LIST; 496 497 498 /****************************************************************************** 499 * 500 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 501 * 502 *****************************************************************************/ 503 504 typedef union acpi_operand_object 505 { 506 ACPI_OBJECT_COMMON Common; 507 ACPI_OBJECT_INTEGER Integer; 508 ACPI_OBJECT_STRING String; 509 ACPI_OBJECT_BUFFER Buffer; 510 ACPI_OBJECT_PACKAGE Package; 511 ACPI_OBJECT_EVENT Event; 512 ACPI_OBJECT_METHOD Method; 513 ACPI_OBJECT_MUTEX Mutex; 514 ACPI_OBJECT_REGION Region; 515 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 516 ACPI_OBJECT_DEVICE Device; 517 ACPI_OBJECT_POWER_RESOURCE PowerResource; 518 ACPI_OBJECT_PROCESSOR Processor; 519 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 520 ACPI_OBJECT_FIELD_COMMON CommonField; 521 ACPI_OBJECT_REGION_FIELD Field; 522 ACPI_OBJECT_BUFFER_FIELD BufferField; 523 ACPI_OBJECT_BANK_FIELD BankField; 524 ACPI_OBJECT_INDEX_FIELD IndexField; 525 ACPI_OBJECT_NOTIFY_HANDLER Notify; 526 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 527 ACPI_OBJECT_REFERENCE Reference; 528 ACPI_OBJECT_EXTRA Extra; 529 ACPI_OBJECT_DATA Data; 530 ACPI_OBJECT_CACHE_LIST Cache; 531 532 /* 533 * Add namespace node to union in order to simplify code that accepts both 534 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 535 * a common DescriptorType field in order to differentiate them. 536 */ 537 ACPI_NAMESPACE_NODE Node; 538 539 } ACPI_OPERAND_OBJECT; 540 541 542 /****************************************************************************** 543 * 544 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 545 * 546 *****************************************************************************/ 547 548 /* Object descriptor types */ 549 550 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 551 #define ACPI_DESC_TYPE_STATE 0x02 552 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 553 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 554 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 555 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 556 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 557 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 558 #define ACPI_DESC_TYPE_STATE_RESULT 0x09 559 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 560 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 561 #define ACPI_DESC_TYPE_WALK 0x0C 562 #define ACPI_DESC_TYPE_PARSER 0x0D 563 #define ACPI_DESC_TYPE_OPERAND 0x0E 564 #define ACPI_DESC_TYPE_NAMED 0x0F 565 #define ACPI_DESC_TYPE_MAX 0x0F 566 567 568 typedef struct acpi_common_descriptor 569 { 570 void *CommonPointer; 571 UINT8 DescriptorType; /* To differentiate various internal objs */ 572 573 } ACPI_COMMON_DESCRIPTOR; 574 575 typedef union acpi_descriptor 576 { 577 ACPI_COMMON_DESCRIPTOR Common; 578 ACPI_OPERAND_OBJECT Object; 579 ACPI_NAMESPACE_NODE Node; 580 ACPI_PARSE_OBJECT Op; 581 582 } ACPI_DESCRIPTOR; 583 584 #pragma pack() 585 586 #endif /* _ACOBJECT_H */ 587
Indexes created Sat Oct 11 16:09:52 GMT 2025