acobject.h revision 229989
1 2/****************************************************************************** 3 * 4 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 5 * 6 *****************************************************************************/ 7 8/* 9 * Copyright (C) 2000 - 2012, Intel Corp. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions, and the following disclaimer, 17 * without modification. 18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 * substantially similar to the "NO WARRANTY" disclaimer below 20 * ("Disclaimer") and any redistribution must be conditioned upon 21 * including a substantially similar Disclaimer requirement for further 22 * binary redistribution. 23 * 3. Neither the names of the above-listed copyright holders nor the names 24 * of any contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * Alternatively, this software may be distributed under the terms of the 28 * GNU General Public License ("GPL") version 2 as published by the Free 29 * Software Foundation. 30 * 31 * NO WARRANTY 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGES. 43 */ 44 45#ifndef _ACOBJECT_H 46#define _ACOBJECT_H 47 48/* acpisrc:StructDefs -- for acpisrc conversion */ 49 50 51/* 52 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 53 * to the interpreter, and to keep track of the various handlers such as 54 * address space handlers and notify handlers. The object is a constant 55 * size in order to allow it to be cached and reused. 56 * 57 * Note: The object is optimized to be aligned and will not work if it is 58 * byte-packed. 59 */ 60#if ACPI_MACHINE_WIDTH == 64 61#pragma pack(8) 62#else 63#pragma pack(4) 64#endif 65 66/******************************************************************************* 67 * 68 * Common Descriptors 69 * 70 ******************************************************************************/ 71 72/* 73 * Common area for all objects. 74 * 75 * DescriptorType is used to differentiate between internal descriptors, and 76 * must be in the same place across all descriptors 77 * 78 * Note: The DescriptorType and Type fields must appear in the identical 79 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT 80 * structures. 81 */ 82#define ACPI_OBJECT_COMMON_HEADER \ 83 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 84 UINT8 DescriptorType; /* To differentiate various internal objs */\ 85 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 86 UINT16 ReferenceCount; /* For object deletion management */\ 87 UINT8 Flags; 88 /* 89 * Note: There are 3 bytes available here before the 90 * next natural alignment boundary (for both 32/64 cases) 91 */ 92 93/* Values for Flag byte above */ 94 95#define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 96#define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 97#define AOPOBJ_DATA_VALID 0x04 /* Object is intialized and data is valid */ 98#define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized, _REG was run */ 99#define AOPOBJ_SETUP_COMPLETE 0x10 /* Region setup is complete */ 100#define AOPOBJ_INVALID 0x20 /* Host OS won't allow a Region address */ 101 102 103/****************************************************************************** 104 * 105 * Basic data types 106 * 107 *****************************************************************************/ 108 109typedef struct acpi_object_common 110{ 111 ACPI_OBJECT_COMMON_HEADER 112 113} ACPI_OBJECT_COMMON; 114 115 116typedef 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 Pointer 127 * 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 136typedef struct acpi_object_string /* Null terminated, ASCII characters only */ 137{ 138 ACPI_OBJECT_COMMON_HEADER 139 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */ 140 141} ACPI_OBJECT_STRING; 142 143 144typedef struct acpi_object_buffer 145{ 146 ACPI_OBJECT_COMMON_HEADER 147 ACPI_COMMON_BUFFER_INFO (UINT8) /* Buffer in AML stream or allocated buffer */ 148 UINT32 AmlLength; 149 UINT8 *AmlStart; 150 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 151 152} ACPI_OBJECT_BUFFER; 153 154 155typedef struct acpi_object_package 156{ 157 ACPI_OBJECT_COMMON_HEADER 158 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 159 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 160 UINT8 *AmlStart; 161 UINT32 AmlLength; 162 UINT32 Count; /* # of elements in package */ 163 164} ACPI_OBJECT_PACKAGE; 165 166 167/****************************************************************************** 168 * 169 * Complex data types 170 * 171 *****************************************************************************/ 172 173typedef struct acpi_object_event 174{ 175 ACPI_OBJECT_COMMON_HEADER 176 ACPI_SEMAPHORE OsSemaphore; /* Actual OS synchronization object */ 177 178} ACPI_OBJECT_EVENT; 179 180 181typedef struct acpi_object_mutex 182{ 183 ACPI_OBJECT_COMMON_HEADER 184 UINT8 SyncLevel; /* 0-15, specified in Mutex() call */ 185 UINT16 AcquisitionDepth; /* Allow multiple Acquires, same thread */ 186 ACPI_MUTEX OsMutex; /* Actual OS synchronization object */ 187 ACPI_THREAD_ID ThreadId; /* Current owner of the mutex */ 188 struct acpi_thread_state *OwnerThread; /* Current owner of the mutex */ 189 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 190 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 191 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 192 UINT8 OriginalSyncLevel; /* Owner's original sync level (0-15) */ 193 194} ACPI_OBJECT_MUTEX; 195 196 197typedef struct acpi_object_region 198{ 199 ACPI_OBJECT_COMMON_HEADER 200 UINT8 SpaceId; 201 ACPI_NAMESPACE_NODE *Node; /* Containing namespace node */ 202 union acpi_operand_object *Handler; /* Handler for region access */ 203 union acpi_operand_object *Next; 204 ACPI_PHYSICAL_ADDRESS Address; 205 UINT32 Length; 206 207} ACPI_OBJECT_REGION; 208 209 210typedef struct acpi_object_method 211{ 212 ACPI_OBJECT_COMMON_HEADER 213 UINT8 InfoFlags; 214 UINT8 ParamCount; 215 UINT8 SyncLevel; 216 union acpi_operand_object *Mutex; 217 UINT8 *AmlStart; 218 union 219 { 220 ACPI_INTERNAL_METHOD Implementation; 221 union acpi_operand_object *Handler; 222 } Dispatch; 223 224 UINT32 AmlLength; 225 UINT8 ThreadCount; 226 ACPI_OWNER_ID OwnerId; 227 228} ACPI_OBJECT_METHOD; 229 230/* Flags for InfoFlags field above */ 231 232#define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 233#define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 234#define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 235#define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 236#define ACPI_METHOD_MODIFIED_NAMESPACE 0x10 /* Method modified the namespace */ 237 238 239/****************************************************************************** 240 * 241 * Objects that can be notified. All share a common NotifyInfo area. 242 * 243 *****************************************************************************/ 244 245/* 246 * Common fields for objects that support ASL notifications 247 */ 248#define ACPI_COMMON_NOTIFY_INFO \ 249 union acpi_operand_object *SystemNotify; /* Handler for system notifies */\ 250 union acpi_operand_object *DeviceNotify; /* Handler for driver notifies */\ 251 union acpi_operand_object *Handler; /* Handler for Address space */ 252 253 254typedef struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 255{ 256 ACPI_OBJECT_COMMON_HEADER 257 ACPI_COMMON_NOTIFY_INFO 258 259} ACPI_OBJECT_NOTIFY_COMMON; 260 261 262typedef struct acpi_object_device 263{ 264 ACPI_OBJECT_COMMON_HEADER 265 ACPI_COMMON_NOTIFY_INFO 266 ACPI_GPE_BLOCK_INFO *GpeBlock; 267 268} ACPI_OBJECT_DEVICE; 269 270 271typedef struct acpi_object_power_resource 272{ 273 ACPI_OBJECT_COMMON_HEADER 274 ACPI_COMMON_NOTIFY_INFO 275 UINT32 SystemLevel; 276 UINT32 ResourceOrder; 277 278} ACPI_OBJECT_POWER_RESOURCE; 279 280 281typedef struct acpi_object_processor 282{ 283 ACPI_OBJECT_COMMON_HEADER 284 285 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 286 287 UINT8 ProcId; 288 UINT8 Length; 289 ACPI_COMMON_NOTIFY_INFO 290 ACPI_IO_ADDRESS Address; 291 292} ACPI_OBJECT_PROCESSOR; 293 294 295typedef struct acpi_object_thermal_zone 296{ 297 ACPI_OBJECT_COMMON_HEADER 298 ACPI_COMMON_NOTIFY_INFO 299 300} ACPI_OBJECT_THERMAL_ZONE; 301 302 303/****************************************************************************** 304 * 305 * Fields. All share a common header/info field. 306 * 307 *****************************************************************************/ 308 309/* 310 * Common bitfield for the field objects 311 * "Field Datum" -- a datum from the actual field object 312 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 313 */ 314#define ACPI_COMMON_FIELD_INFO \ 315 UINT8 FieldFlags; /* Access, update, and lock bits */\ 316 UINT8 Attribute; /* From AccessAs keyword */\ 317 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 318 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */\ 319 UINT32 BitLength; /* Length of field in bits */\ 320 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 321 UINT32 Value; /* Value to store into the Bank or Index register */\ 322 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 323 UINT8 AccessLength; /* For serial regions/fields */ 324 325 326typedef struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 327{ 328 ACPI_OBJECT_COMMON_HEADER 329 ACPI_COMMON_FIELD_INFO 330 union acpi_operand_object *RegionObj; /* Parent Operation Region object (REGION/BANK fields only) */ 331 332} ACPI_OBJECT_FIELD_COMMON; 333 334 335typedef struct acpi_object_region_field 336{ 337 ACPI_OBJECT_COMMON_HEADER 338 ACPI_COMMON_FIELD_INFO 339 UINT16 ResourceLength; 340 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 341 UINT8 *ResourceBuffer; /* ResourceTemplate for serial regions/fields */ 342 343} ACPI_OBJECT_REGION_FIELD; 344 345 346typedef struct acpi_object_bank_field 347{ 348 ACPI_OBJECT_COMMON_HEADER 349 ACPI_COMMON_FIELD_INFO 350 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 351 union acpi_operand_object *BankObj; /* BankSelect Register object */ 352 353} ACPI_OBJECT_BANK_FIELD; 354 355 356typedef struct acpi_object_index_field 357{ 358 ACPI_OBJECT_COMMON_HEADER 359 ACPI_COMMON_FIELD_INFO 360 361 /* 362 * No "RegionObj" pointer needed since the Index and Data registers 363 * are each field definitions unto themselves. 364 */ 365 union acpi_operand_object *IndexObj; /* Index register */ 366 union acpi_operand_object *DataObj; /* Data register */ 367 368} ACPI_OBJECT_INDEX_FIELD; 369 370 371/* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 372 373typedef struct acpi_object_buffer_field 374{ 375 ACPI_OBJECT_COMMON_HEADER 376 ACPI_COMMON_FIELD_INFO 377 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 378 379} ACPI_OBJECT_BUFFER_FIELD; 380 381 382/****************************************************************************** 383 * 384 * Objects for handlers 385 * 386 *****************************************************************************/ 387 388typedef struct acpi_object_notify_handler 389{ 390 ACPI_OBJECT_COMMON_HEADER 391 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 392 ACPI_NOTIFY_HANDLER Handler; 393 void *Context; 394 395} ACPI_OBJECT_NOTIFY_HANDLER; 396 397 398typedef 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 */ 428typedef 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 443typedef 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 */ 465typedef 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 479typedef 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 490typedef 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 504typedef 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 568typedef struct acpi_common_descriptor 569{ 570 void *CommonPointer; 571 UINT8 DescriptorType; /* To differentiate various internal objs */ 572 573} ACPI_COMMON_DESCRIPTOR; 574 575typedef 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