1 /******************************************************************************
3 * Name: acobject.h - Definition of ACPI_OPERAND_OBJECT (Internal object only)
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2019, Intel Corp.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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.
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
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40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
47 /* acpisrc:StructDefs -- for acpisrc conversion */
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.
56 * Note: The object is optimized to be aligned and will not work if it is
59 #if ACPI_MACHINE_WIDTH == 64
65 /*******************************************************************************
69 ******************************************************************************/
72 * Common area for all objects.
74 * DescriptorType is used to differentiate between internal descriptors, and
75 * must be in the same place across all descriptors
77 * Note: The DescriptorType and Type fields must appear in the identical
78 * position in both the ACPI_NAMESPACE_NODE and ACPI_OPERAND_OBJECT
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 */\
88 * Note: There are 3 bytes available here before the
89 * next natural alignment boundary (for both 32/64 cases)
92 /* Values for Flag byte above */
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 */
103 /******************************************************************************
107 *****************************************************************************/
109 typedef struct acpi_object_common
111 ACPI_OBJECT_COMMON_HEADER
113 } ACPI_OBJECT_COMMON
;
116 typedef struct acpi_object_integer
118 ACPI_OBJECT_COMMON_HEADER
119 UINT8 Fill
[3]; /* Prevent warning on some compilers */
122 } ACPI_OBJECT_INTEGER
;
126 * Note: The String and Buffer object must be identical through the
127 * pointer and length elements. There is code that depends on this.
129 * Fields common to both Strings and Buffers
131 #define ACPI_COMMON_BUFFER_INFO(_Type) \
136 /* Null terminated, ASCII characters only */
138 typedef struct acpi_object_string
140 ACPI_OBJECT_COMMON_HEADER
141 ACPI_COMMON_BUFFER_INFO (char) /* String in AML stream or allocated string */
143 } ACPI_OBJECT_STRING
;
146 typedef struct acpi_object_buffer
148 ACPI_OBJECT_COMMON_HEADER
149 ACPI_COMMON_BUFFER_INFO (UINT8
) /* Buffer in AML stream or allocated buffer */
152 ACPI_NAMESPACE_NODE
*Node
; /* Link back to parent node */
154 } ACPI_OBJECT_BUFFER
;
157 typedef struct acpi_object_package
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 */
164 UINT32 Count
; /* # of elements in package */
166 } ACPI_OBJECT_PACKAGE
;
169 /******************************************************************************
173 *****************************************************************************/
175 typedef struct acpi_object_event
177 ACPI_OBJECT_COMMON_HEADER
178 ACPI_SEMAPHORE OsSemaphore
; /* Actual OS synchronization object */
183 typedef struct acpi_object_mutex
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) */
199 typedef struct acpi_object_region
201 ACPI_OBJECT_COMMON_HEADER
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
;
209 } ACPI_OBJECT_REGION
;
212 typedef struct acpi_object_method
214 ACPI_OBJECT_COMMON_HEADER
218 union acpi_operand_object
*Mutex
;
219 union acpi_operand_object
*Node
;
223 ACPI_INTERNAL_METHOD Implementation
;
224 union acpi_operand_object
*Handler
;
229 ACPI_OWNER_ID OwnerId
;
231 } ACPI_OBJECT_METHOD
;
233 /* Flags for InfoFlags field above */
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 */
243 /******************************************************************************
245 * Objects that can be notified. All share a common NotifyInfo area.
247 *****************************************************************************/
250 * Common fields for objects that support ASL notifications
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 */
256 /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */
258 typedef struct acpi_object_notify_common
260 ACPI_OBJECT_COMMON_HEADER
261 ACPI_COMMON_NOTIFY_INFO
263 } ACPI_OBJECT_NOTIFY_COMMON
;
266 typedef struct acpi_object_device
268 ACPI_OBJECT_COMMON_HEADER
269 ACPI_COMMON_NOTIFY_INFO
270 ACPI_GPE_BLOCK_INFO
*GpeBlock
;
272 } ACPI_OBJECT_DEVICE
;
275 typedef struct acpi_object_power_resource
277 ACPI_OBJECT_COMMON_HEADER
278 ACPI_COMMON_NOTIFY_INFO
280 UINT32 ResourceOrder
;
282 } ACPI_OBJECT_POWER_RESOURCE
;
285 typedef struct acpi_object_processor
287 ACPI_OBJECT_COMMON_HEADER
289 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */
293 ACPI_COMMON_NOTIFY_INFO
294 ACPI_IO_ADDRESS Address
;
296 } ACPI_OBJECT_PROCESSOR
;
299 typedef struct acpi_object_thermal_zone
301 ACPI_OBJECT_COMMON_HEADER
302 ACPI_COMMON_NOTIFY_INFO
304 } ACPI_OBJECT_THERMAL_ZONE
;
307 /******************************************************************************
309 * Fields. All share a common header/info field.
311 *****************************************************************************/
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
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 */
329 /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
331 typedef struct acpi_object_field_common
333 ACPI_OBJECT_COMMON_HEADER
334 ACPI_COMMON_FIELD_INFO
335 union acpi_operand_object
*RegionObj
; /* Parent Operation Region object (REGION/BANK fields only) */
337 } ACPI_OBJECT_FIELD_COMMON
;
340 typedef struct acpi_object_region_field
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 */
350 } ACPI_OBJECT_REGION_FIELD
;
353 typedef struct acpi_object_bank_field
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 */
360 } ACPI_OBJECT_BANK_FIELD
;
363 typedef struct acpi_object_index_field
365 ACPI_OBJECT_COMMON_HEADER
366 ACPI_COMMON_FIELD_INFO
369 * No "RegionObj" pointer needed since the Index and Data registers
370 * are each field definitions unto themselves.
372 union acpi_operand_object
*IndexObj
; /* Index register */
373 union acpi_operand_object
*DataObj
; /* Data register */
375 } ACPI_OBJECT_INDEX_FIELD
;
378 /* The BufferField is different in that it is part of a Buffer, not an OpRegion */
380 typedef struct acpi_object_buffer_field
382 ACPI_OBJECT_COMMON_HEADER
383 ACPI_COMMON_FIELD_INFO
384 union acpi_operand_object
*BufferObj
; /* Containing Buffer object */
386 } ACPI_OBJECT_BUFFER_FIELD
;
389 /******************************************************************************
391 * Objects for handlers
393 *****************************************************************************/
395 typedef struct acpi_object_notify_handler
397 ACPI_OBJECT_COMMON_HEADER
398 ACPI_NAMESPACE_NODE
*Node
; /* Parent device */
399 UINT32 HandlerType
; /* Type: Device/System/Both */
400 ACPI_NOTIFY_HANDLER Handler
; /* Handler address */
402 union acpi_operand_object
*Next
[2]; /* Device and System handler lists */
404 } ACPI_OBJECT_NOTIFY_HANDLER
;
407 typedef struct acpi_object_addr_handler
409 ACPI_OBJECT_COMMON_HEADER
412 ACPI_ADR_SPACE_HANDLER Handler
;
413 ACPI_NAMESPACE_NODE
*Node
; /* Parent device */
415 ACPI_ADR_SPACE_SETUP Setup
;
416 union acpi_operand_object
*RegionList
; /* Regions using this handler */
417 union acpi_operand_object
*Next
;
419 } ACPI_OBJECT_ADDR_HANDLER
;
421 /* Flags for address handler (HandlerFlags) */
423 #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01
426 /******************************************************************************
428 * Special internal objects
430 *****************************************************************************/
433 * The Reference object is used for these opcodes:
434 * Arg[0-6], Local[0-7], IndexOp, NameOp, RefOfOp, LoadOp, LoadTableOp, DebugOp
435 * The Reference.Class differentiates these types.
437 typedef struct acpi_object_reference
439 ACPI_OBJECT_COMMON_HEADER
440 UINT8 Class
; /* Reference Class */
441 UINT8 TargetType
; /* Used for Index Op */
442 UINT8 Resolved
; /* Reference has been resolved to a value */
443 void *Object
; /* NameOp=>HANDLE to obj, IndexOp=>ACPI_OPERAND_OBJECT */
444 ACPI_NAMESPACE_NODE
*Node
; /* RefOf or Namepath */
445 union acpi_operand_object
**Where
; /* Target of Index */
446 UINT8
*IndexPointer
; /* Used for Buffers and Strings */
447 UINT8
*Aml
; /* Used for deferred resolution of the ref */
448 UINT32 Value
; /* Used for Local/Arg/Index/DdbHandle */
450 } ACPI_OBJECT_REFERENCE
;
452 /* Values for Reference.Class above */
456 ACPI_REFCLASS_LOCAL
= 0, /* Method local */
457 ACPI_REFCLASS_ARG
= 1, /* Method argument */
458 ACPI_REFCLASS_REFOF
= 2, /* Result of RefOf() TBD: Split to Ref/Node and Ref/OperandObj? */
459 ACPI_REFCLASS_INDEX
= 3, /* Result of Index() */
460 ACPI_REFCLASS_TABLE
= 4, /* DdbHandle - Load(), LoadTable() */
461 ACPI_REFCLASS_NAME
= 5, /* Reference to a named object */
462 ACPI_REFCLASS_DEBUG
= 6, /* Debug object */
464 ACPI_REFCLASS_MAX
= 6
466 } ACPI_REFERENCE_CLASSES
;
469 * Extra object is used as additional storage for types that
470 * have AML code in their declarations (TermArgs) that must be
471 * evaluated at run time.
473 * Currently: Region and FieldUnit types
475 typedef struct acpi_object_extra
477 ACPI_OBJECT_COMMON_HEADER
478 ACPI_NAMESPACE_NODE
*Method_REG
; /* _REG method for this region (if any) */
479 ACPI_NAMESPACE_NODE
*ScopeNode
;
480 void *RegionContext
; /* Region-specific data */
487 /* Additional data that can be attached to namespace nodes */
489 typedef struct acpi_object_data
491 ACPI_OBJECT_COMMON_HEADER
492 ACPI_OBJECT_HANDLER Handler
;
498 /* Structure used when objects are cached for reuse */
500 typedef struct acpi_object_cache_list
502 ACPI_OBJECT_COMMON_HEADER
503 union acpi_operand_object
*Next
; /* Link for object cache and internal lists*/
505 } ACPI_OBJECT_CACHE_LIST
;
508 /******************************************************************************
510 * ACPI_OPERAND_OBJECT Descriptor - a giant union of all of the above
512 *****************************************************************************/
514 typedef union acpi_operand_object
516 ACPI_OBJECT_COMMON Common
;
517 ACPI_OBJECT_INTEGER Integer
;
518 ACPI_OBJECT_STRING String
;
519 ACPI_OBJECT_BUFFER Buffer
;
520 ACPI_OBJECT_PACKAGE Package
;
521 ACPI_OBJECT_EVENT Event
;
522 ACPI_OBJECT_METHOD Method
;
523 ACPI_OBJECT_MUTEX Mutex
;
524 ACPI_OBJECT_REGION Region
;
525 ACPI_OBJECT_NOTIFY_COMMON CommonNotify
;
526 ACPI_OBJECT_DEVICE Device
;
527 ACPI_OBJECT_POWER_RESOURCE PowerResource
;
528 ACPI_OBJECT_PROCESSOR Processor
;
529 ACPI_OBJECT_THERMAL_ZONE ThermalZone
;
530 ACPI_OBJECT_FIELD_COMMON CommonField
;
531 ACPI_OBJECT_REGION_FIELD Field
;
532 ACPI_OBJECT_BUFFER_FIELD BufferField
;
533 ACPI_OBJECT_BANK_FIELD BankField
;
534 ACPI_OBJECT_INDEX_FIELD IndexField
;
535 ACPI_OBJECT_NOTIFY_HANDLER Notify
;
536 ACPI_OBJECT_ADDR_HANDLER AddressSpace
;
537 ACPI_OBJECT_REFERENCE Reference
;
538 ACPI_OBJECT_EXTRA Extra
;
539 ACPI_OBJECT_DATA Data
;
540 ACPI_OBJECT_CACHE_LIST Cache
;
543 * Add namespace node to union in order to simplify code that accepts both
544 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share
545 * a common DescriptorType field in order to differentiate them.
547 ACPI_NAMESPACE_NODE Node
;
549 } ACPI_OPERAND_OBJECT
;
552 /******************************************************************************
554 * ACPI_DESCRIPTOR - objects that share a common descriptor identifier
556 *****************************************************************************/
558 /* Object descriptor types */
560 #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */
561 #define ACPI_DESC_TYPE_STATE 0x02
562 #define ACPI_DESC_TYPE_STATE_UPDATE 0x03
563 #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04
564 #define ACPI_DESC_TYPE_STATE_CONTROL 0x05
565 #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06
566 #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07
567 #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08
568 #define ACPI_DESC_TYPE_STATE_RESULT 0x09
569 #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A
570 #define ACPI_DESC_TYPE_STATE_THREAD 0x0B
571 #define ACPI_DESC_TYPE_WALK 0x0C
572 #define ACPI_DESC_TYPE_PARSER 0x0D
573 #define ACPI_DESC_TYPE_OPERAND 0x0E
574 #define ACPI_DESC_TYPE_NAMED 0x0F
575 #define ACPI_DESC_TYPE_MAX 0x0F
578 typedef struct acpi_common_descriptor
581 UINT8 DescriptorType
; /* To differentiate various internal objs */
583 } ACPI_COMMON_DESCRIPTOR
;
585 typedef union acpi_descriptor
587 ACPI_COMMON_DESCRIPTOR Common
;
588 ACPI_OPERAND_OBJECT Object
;
589 ACPI_NAMESPACE_NODE Node
;
590 ACPI_PARSE_OBJECT Op
;
596 #endif /* _ACOBJECT_H */