acobject.h revision 126372
1 2/****************************************************************************** 3 * 4 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only) 5 * $Revision: 123 $ 6 * 7 *****************************************************************************/ 8 9/****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp. 14 * All rights reserved. 15 * 16 * 2. License 17 * 18 * 2.1. This is your license from Intel Corp. under its intellectual property 19 * rights. You may have additional license terms from the party that provided 20 * you this software, covering your right to use that party's intellectual 21 * property rights. 22 * 23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 24 * copy of the source code appearing in this file ("Covered Code") an 25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 26 * base code distributed originally by Intel ("Original Intel Code") to copy, 27 * make derivatives, distribute, use and display any portion of the Covered 28 * Code in any form, with the right to sublicense such rights; and 29 * 30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 31 * license (with the right to sublicense), under only those claims of Intel 32 * patents that are infringed by the Original Intel Code, to make, use, sell, 33 * offer to sell, and import the Covered Code and derivative works thereof 34 * solely to the minimum extent necessary to exercise the above copyright 35 * license, and in no event shall the patent license extend to any additions 36 * to or modifications of the Original Intel Code. No other license or right 37 * is granted directly or by implication, estoppel or otherwise; 38 * 39 * The above copyright and patent license is granted only if the following 40 * conditions are met: 41 * 42 * 3. Conditions 43 * 44 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 45 * Redistribution of source code of any substantial portion of the Covered 46 * Code or modification with rights to further distribute source must include 47 * the above Copyright Notice, the above License, this list of Conditions, 48 * and the following Disclaimer and Export Compliance provision. In addition, 49 * Licensee must cause all Covered Code to which Licensee contributes to 50 * contain a file documenting the changes Licensee made to create that Covered 51 * Code and the date of any change. Licensee must include in that file the 52 * documentation of any changes made by any predecessor Licensee. Licensee 53 * must include a prominent statement that the modification is derived, 54 * directly or indirectly, from Original Intel Code. 55 * 56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 57 * Redistribution of source code of any substantial portion of the Covered 58 * Code or modification without rights to further distribute source must 59 * include the following Disclaimer and Export Compliance provision in the 60 * documentation and/or other materials provided with distribution. In 61 * addition, Licensee may not authorize further sublicense of source of any 62 * portion of the Covered Code, and must include terms to the effect that the 63 * license from Licensee to its licensee is limited to the intellectual 64 * property embodied in the software Licensee provides to its licensee, and 65 * not to intellectual property embodied in modifications its licensee may 66 * make. 67 * 68 * 3.3. Redistribution of Executable. Redistribution in executable form of any 69 * substantial portion of the Covered Code or modification must reproduce the 70 * above Copyright Notice, and the following Disclaimer and Export Compliance 71 * provision in the documentation and/or other materials provided with the 72 * distribution. 73 * 74 * 3.4. Intel retains all right, title, and interest in and to the Original 75 * Intel Code. 76 * 77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 78 * Intel shall be used in advertising or otherwise to promote the sale, use or 79 * other dealings in products derived from or relating to the Covered Code 80 * without prior written authorization from Intel. 81 * 82 * 4. Disclaimer and Export Compliance 83 * 84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 90 * PARTICULAR PURPOSE. 91 * 92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 99 * LIMITED REMEDY. 100 * 101 * 4.3. Licensee shall not export, either directly or indirectly, any of this 102 * software or system incorporating such software without first obtaining any 103 * required license or other approval from the U. S. Department of Commerce or 104 * any other agency or department of the United States Government. In the 105 * event Licensee exports any such software from the United States or 106 * re-exports any such software from a foreign destination, Licensee shall 107 * ensure that the distribution and export/re-export of the software is in 108 * compliance with all laws, regulations, orders, or other restrictions of the 109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 110 * any of its subsidiaries will export/re-export any technical data, process, 111 * software, or service, directly or indirectly, to any country for which the 112 * United States government or any agency thereof requires an export license, 113 * other governmental approval, or letter of assurance, without first obtaining 114 * such license, approval or letter. 115 * 116 *****************************************************************************/ 117 118#ifndef _ACOBJECT_H 119#define _ACOBJECT_H 120 121 122/* 123 * The ACPI_OPERAND_OBJECT is used to pass AML operands from the dispatcher 124 * to the interpreter, and to keep track of the various handlers such as 125 * address space handlers and notify handlers. The object is a constant 126 * size in order to allow it to be cached and reused. 127 */ 128 129/******************************************************************************* 130 * 131 * Common Descriptors 132 * 133 ******************************************************************************/ 134 135/* 136 * Common area for all objects. 137 * 138 * DataType is used to differentiate between internal descriptors, and MUST 139 * be the first byte in this structure. 140 */ 141#define ACPI_OBJECT_COMMON_HEADER /* SIZE/ALIGNMENT: 32 bits, one ptr plus trailing 8-bit flag */\ 142 UINT8 Descriptor; /* To differentiate various internal objs */\ 143 UINT8 Type; /* ACPI_OBJECT_TYPE */\ 144 UINT16 ReferenceCount; /* For object deletion management */\ 145 union acpi_operand_object *NextObject; /* Objects linked to parent NS node */\ 146 UINT8 Flags; \ 147 148/* Values for flag byte above */ 149 150#define AOPOBJ_AML_CONSTANT 0x01 151#define AOPOBJ_STATIC_POINTER 0x02 152#define AOPOBJ_DATA_VALID 0x04 153#define AOPOBJ_OBJECT_INITIALIZED 0x08 154#define AOPOBJ_SETUP_COMPLETE 0x10 155#define AOPOBJ_SINGLE_DATUM 0x20 156 157 158/* 159 * Common bitfield for the field objects 160 * "Field Datum" -- a datum from the actual field object 161 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 162 */ 163#define ACPI_COMMON_FIELD_INFO /* SIZE/ALIGNMENT: 24 bits + three 32-bit values */\ 164 UINT8 FieldFlags; /* Access, update, and lock bits */\ 165 UINT8 Attribute; /* From AccessAs keyword */\ 166 UINT8 AccessByteWidth; /* Read/Write size in bytes */\ 167 UINT32 BitLength; /* Length of field in bits */\ 168 UINT32 BaseByteOffset; /* Byte offset within containing object */\ 169 UINT8 StartFieldBitOffset;/* Bit offset within first field datum (0-63) */\ 170 UINT8 DatumValidBits; /* Valid bit in first "Field datum" */\ 171 UINT8 EndFieldValidBits; /* Valid bits in the last "field datum" */\ 172 UINT8 EndBufferValidBits; /* Valid bits in the last "buffer datum" */\ 173 UINT32 Value; /* Value to store into the Bank or Index register */\ 174 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 175 176 177/* 178 * Fields common to both Strings and Buffers 179 */ 180#define ACPI_COMMON_BUFFER_INFO \ 181 UINT32 Length; 182 183 184/* 185 * Common fields for objects that support ASL notifications 186 */ 187#define ACPI_COMMON_NOTIFY_INFO \ 188 union acpi_operand_object *SystemNotify; /* Handler for system notifies */\ 189 union acpi_operand_object *DeviceNotify; /* Handler for driver notifies */\ 190 union acpi_operand_object *Handler; /* Handler for Address space */ 191 192 193/****************************************************************************** 194 * 195 * Basic data types 196 * 197 *****************************************************************************/ 198 199typedef struct acpi_object_common 200{ 201 ACPI_OBJECT_COMMON_HEADER 202 203} ACPI_OBJECT_COMMON; 204 205 206typedef struct acpi_object_integer 207{ 208 ACPI_OBJECT_COMMON_HEADER 209 ACPI_INTEGER Value; 210 211} ACPI_OBJECT_INTEGER; 212 213 214typedef struct acpi_object_string /* Null terminated, ASCII characters only */ 215{ 216 ACPI_OBJECT_COMMON_HEADER 217 ACPI_COMMON_BUFFER_INFO 218 char *Pointer; /* String in AML stream or allocated string */ 219 220} ACPI_OBJECT_STRING; 221 222 223typedef struct acpi_object_buffer 224{ 225 ACPI_OBJECT_COMMON_HEADER 226 ACPI_COMMON_BUFFER_INFO 227 UINT8 *Pointer; /* Buffer in AML stream or allocated buffer */ 228 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 229 UINT8 *AmlStart; 230 UINT32 AmlLength; 231 232} ACPI_OBJECT_BUFFER; 233 234 235typedef struct acpi_object_package 236{ 237 ACPI_OBJECT_COMMON_HEADER 238 239 UINT32 Count; /* # of elements in package */ 240 UINT32 AmlLength; 241 UINT8 *AmlStart; 242 ACPI_NAMESPACE_NODE *Node; /* Link back to parent node */ 243 union acpi_operand_object **Elements; /* Array of pointers to AcpiObjects */ 244 245} ACPI_OBJECT_PACKAGE; 246 247 248/****************************************************************************** 249 * 250 * Complex data types 251 * 252 *****************************************************************************/ 253 254typedef struct acpi_object_event 255{ 256 ACPI_OBJECT_COMMON_HEADER 257 void *Semaphore; 258 259} ACPI_OBJECT_EVENT; 260 261 262#define INFINITE_CONCURRENCY 0xFF 263 264typedef struct acpi_object_method 265{ 266 ACPI_OBJECT_COMMON_HEADER 267 UINT8 MethodFlags; 268 UINT8 ParamCount; 269 UINT32 AmlLength; 270 void *Semaphore; 271 UINT8 *AmlStart; 272 UINT8 Concurrency; 273 UINT8 ThreadCount; 274 ACPI_OWNER_ID OwningId; 275 276} ACPI_OBJECT_METHOD; 277 278 279typedef struct acpi_object_mutex 280{ 281 ACPI_OBJECT_COMMON_HEADER 282 UINT16 SyncLevel; 283 UINT16 AcquisitionDepth; 284 struct acpi_thread_state *OwnerThread; 285 void *Semaphore; 286 union acpi_operand_object *Prev; /* Link for list of acquired mutexes */ 287 union acpi_operand_object *Next; /* Link for list of acquired mutexes */ 288 ACPI_NAMESPACE_NODE *Node; /* containing object */ 289 290} ACPI_OBJECT_MUTEX; 291 292 293typedef struct acpi_object_region 294{ 295 ACPI_OBJECT_COMMON_HEADER 296 297 UINT8 SpaceId; 298 union acpi_operand_object *Handler; /* Handler for region access */ 299 ACPI_NAMESPACE_NODE *Node; /* containing object */ 300 union acpi_operand_object *Next; 301 UINT32 Length; 302 ACPI_PHYSICAL_ADDRESS Address; 303 304} ACPI_OBJECT_REGION; 305 306 307/****************************************************************************** 308 * 309 * Objects that can be notified. All share a common NotifyInfo area. 310 * 311 *****************************************************************************/ 312 313typedef struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 314{ 315 ACPI_OBJECT_COMMON_HEADER 316 ACPI_COMMON_NOTIFY_INFO 317 318} ACPI_OBJECT_NOTIFY_COMMON; 319 320 321typedef struct acpi_object_device 322{ 323 ACPI_OBJECT_COMMON_HEADER 324 ACPI_COMMON_NOTIFY_INFO 325 ACPI_GPE_BLOCK_INFO *GpeBlock; 326 327} ACPI_OBJECT_DEVICE; 328 329 330typedef struct acpi_object_power_resource 331{ 332 ACPI_OBJECT_COMMON_HEADER 333 ACPI_COMMON_NOTIFY_INFO 334 UINT32 SystemLevel; 335 UINT32 ResourceOrder; 336 337} ACPI_OBJECT_POWER_RESOURCE; 338 339 340typedef struct acpi_object_processor 341{ 342 ACPI_OBJECT_COMMON_HEADER 343 ACPI_COMMON_NOTIFY_INFO 344 UINT32 ProcId; 345 UINT32 Length; 346 ACPI_IO_ADDRESS Address; 347 348} ACPI_OBJECT_PROCESSOR; 349 350 351typedef struct acpi_object_thermal_zone 352{ 353 ACPI_OBJECT_COMMON_HEADER 354 ACPI_COMMON_NOTIFY_INFO 355 356} ACPI_OBJECT_THERMAL_ZONE; 357 358 359/****************************************************************************** 360 * 361 * Fields. All share a common header/info field. 362 * 363 *****************************************************************************/ 364 365typedef struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 366{ 367 ACPI_OBJECT_COMMON_HEADER 368 ACPI_COMMON_FIELD_INFO 369 union acpi_operand_object *RegionObj; /* Containing Operation Region object */ 370 /* (REGION/BANK fields only) */ 371} ACPI_OBJECT_FIELD_COMMON; 372 373 374typedef struct acpi_object_region_field 375{ 376 ACPI_OBJECT_COMMON_HEADER 377 ACPI_COMMON_FIELD_INFO 378 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 379 380} ACPI_OBJECT_REGION_FIELD; 381 382 383typedef struct acpi_object_bank_field 384{ 385 ACPI_OBJECT_COMMON_HEADER 386 ACPI_COMMON_FIELD_INFO 387 union acpi_operand_object *RegionObj; /* Containing OpRegion object */ 388 union acpi_operand_object *BankObj; /* BankSelect Register object */ 389 390} ACPI_OBJECT_BANK_FIELD; 391 392 393typedef struct acpi_object_index_field 394{ 395 ACPI_OBJECT_COMMON_HEADER 396 ACPI_COMMON_FIELD_INFO 397 398 /* 399 * No "RegionObj" pointer needed since the Index and Data registers 400 * are each field definitions unto themselves. 401 */ 402 union acpi_operand_object *IndexObj; /* Index register */ 403 union acpi_operand_object *DataObj; /* Data register */ 404 405} ACPI_OBJECT_INDEX_FIELD; 406 407 408/* The BufferField is different in that it is part of a Buffer, not an OpRegion */ 409 410typedef struct acpi_object_buffer_field 411{ 412 ACPI_OBJECT_COMMON_HEADER 413 ACPI_COMMON_FIELD_INFO 414 union acpi_operand_object *BufferObj; /* Containing Buffer object */ 415 416} ACPI_OBJECT_BUFFER_FIELD; 417 418 419/****************************************************************************** 420 * 421 * Objects for handlers 422 * 423 *****************************************************************************/ 424 425typedef struct acpi_object_notify_handler 426{ 427 ACPI_OBJECT_COMMON_HEADER 428 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 429 ACPI_NOTIFY_HANDLER Handler; 430 void *Context; 431 432} ACPI_OBJECT_NOTIFY_HANDLER; 433 434 435/* Flags for address handler */ 436 437#define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x1 438 439 440typedef struct acpi_object_addr_handler 441{ 442 ACPI_OBJECT_COMMON_HEADER 443 UINT8 SpaceId; 444 UINT16 Hflags; 445 ACPI_ADR_SPACE_HANDLER Handler; 446 ACPI_NAMESPACE_NODE *Node; /* Parent device */ 447 void *Context; 448 ACPI_ADR_SPACE_SETUP Setup; 449 union acpi_operand_object *RegionList; /* regions using this handler */ 450 union acpi_operand_object *Next; 451 452} ACPI_OBJECT_ADDR_HANDLER; 453 454 455/****************************************************************************** 456 * 457 * Special internal objects 458 * 459 *****************************************************************************/ 460 461/* 462 * The Reference object type is used for these opcodes: 463 * Arg[0-6], Local[0-7], IndexOp, NameOp, ZeroOp, OneOp, OnesOp, DebugOp 464 */ 465typedef struct acpi_object_reference 466{ 467 ACPI_OBJECT_COMMON_HEADER 468 UINT8 TargetType; /* Used for IndexOp */ 469 UINT16 Opcode; 470 UINT32 Offset; /* Used for ArgOp, LocalOp, and IndexOp */ 471 void *Object; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */ 472 ACPI_NAMESPACE_NODE *Node; 473 union acpi_operand_object **Where; 474 475} ACPI_OBJECT_REFERENCE; 476 477 478/* 479 * Extra object is used as additional storage for types that 480 * have AML code in their declarations (TermArgs) that must be 481 * evaluated at run time. 482 * 483 * Currently: Region and FieldUnit types 484 */ 485typedef struct acpi_object_extra 486{ 487 ACPI_OBJECT_COMMON_HEADER 488 UINT8 ByteFill1; 489 UINT16 WordFill1; 490 UINT32 AmlLength; 491 UINT8 *AmlStart; 492 ACPI_NAMESPACE_NODE *Method_REG; /* _REG method for this region (if any) */ 493 void *RegionContext; /* Region-specific data */ 494 495} ACPI_OBJECT_EXTRA; 496 497 498/* Additional data that can be attached to namespace nodes */ 499 500typedef struct acpi_object_data 501{ 502 ACPI_OBJECT_COMMON_HEADER 503 ACPI_OBJECT_HANDLER Handler; 504 void *Pointer; 505 506} ACPI_OBJECT_DATA; 507 508 509/* Structure used when objects are cached for reuse */ 510 511typedef struct acpi_object_cache_list 512{ 513 ACPI_OBJECT_COMMON_HEADER 514 union acpi_operand_object *Next; /* Link for object cache and internal lists*/ 515 516} ACPI_OBJECT_CACHE_LIST; 517 518 519/****************************************************************************** 520 * 521 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above 522 * 523 *****************************************************************************/ 524 525typedef union acpi_operand_object 526{ 527 ACPI_OBJECT_COMMON Common; 528 ACPI_OBJECT_INTEGER Integer; 529 ACPI_OBJECT_STRING String; 530 ACPI_OBJECT_BUFFER Buffer; 531 ACPI_OBJECT_PACKAGE Package; 532 ACPI_OBJECT_EVENT Event; 533 ACPI_OBJECT_METHOD Method; 534 ACPI_OBJECT_MUTEX Mutex; 535 ACPI_OBJECT_REGION Region; 536 ACPI_OBJECT_NOTIFY_COMMON CommonNotify; 537 ACPI_OBJECT_DEVICE Device; 538 ACPI_OBJECT_POWER_RESOURCE PowerResource; 539 ACPI_OBJECT_PROCESSOR Processor; 540 ACPI_OBJECT_THERMAL_ZONE ThermalZone; 541 ACPI_OBJECT_FIELD_COMMON CommonField; 542 ACPI_OBJECT_REGION_FIELD Field; 543 ACPI_OBJECT_BUFFER_FIELD BufferField; 544 ACPI_OBJECT_BANK_FIELD BankField; 545 ACPI_OBJECT_INDEX_FIELD IndexField; 546 ACPI_OBJECT_NOTIFY_HANDLER Notify; 547 ACPI_OBJECT_ADDR_HANDLER AddressSpace; 548 ACPI_OBJECT_REFERENCE Reference; 549 ACPI_OBJECT_EXTRA Extra; 550 ACPI_OBJECT_DATA Data; 551 ACPI_OBJECT_CACHE_LIST Cache; 552 553} ACPI_OPERAND_OBJECT; 554 555 556/****************************************************************************** 557 * 558 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier 559 * 560 *****************************************************************************/ 561 562 563/* Object descriptor types */ 564 565#define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 566#define ACPI_DESC_TYPE_STATE 0x02 567#define ACPI_DESC_TYPE_STATE_UPDATE 0x03 568#define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 569#define ACPI_DESC_TYPE_STATE_CONTROL 0x05 570#define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 571#define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 572#define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 573#define ACPI_DESC_TYPE_STATE_RESULT 0x09 574#define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 575#define ACPI_DESC_TYPE_STATE_THREAD 0x0B 576#define ACPI_DESC_TYPE_WALK 0x0C 577#define ACPI_DESC_TYPE_PARSER 0x0D 578#define ACPI_DESC_TYPE_OPERAND 0x0E 579#define ACPI_DESC_TYPE_NAMED 0x0F 580#define ACPI_DESC_TYPE_MAX 0x0F 581 582 583typedef union acpi_descriptor 584{ 585 UINT8 DescriptorId; /* To differentiate various internal objs */\ 586 ACPI_OPERAND_OBJECT Object; 587 ACPI_NAMESPACE_NODE Node; 588 ACPI_PARSE_OBJECT Op; 589 590} ACPI_DESCRIPTOR; 591 592 593#endif /* _ACOBJECT_H */ 594