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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
61686124 | 3 | * Name: acobject.h - Definition of union acpi_operand_object (Internal object only) |
1da177e4 LT |
4 | * |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
c8100dc4 | 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
1da177e4 LT |
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 | ||
61686124 BM |
47 | /* acpisrc:struct_defs -- for acpisrc conversion */ |
48 | ||
1da177e4 | 49 | /* |
61686124 | 50 | * The union acpi_operand_object is used to pass AML operands from the dispatcher |
1da177e4 | 51 | * to the interpreter, and to keep track of the various handlers such as |
61686124 | 52 | * address space handlers and notify handlers. The object is a constant |
1da177e4 | 53 | * size in order to allow it to be cached and reused. |
7c9626ba BM |
54 | * |
55 | * Note: The object is optimized to be aligned and will not work if it is | |
56 | * byte-packed. | |
1da177e4 | 57 | */ |
7c9626ba BM |
58 | #if ACPI_MACHINE_WIDTH == 64 |
59 | #pragma pack(8) | |
60 | #else | |
61 | #pragma pack(4) | |
62 | #endif | |
1da177e4 LT |
63 | |
64 | /******************************************************************************* | |
65 | * | |
66 | * Common Descriptors | |
67 | * | |
68 | ******************************************************************************/ | |
69 | ||
70 | /* | |
71 | * Common area for all objects. | |
72 | * | |
61686124 BM |
73 | * descriptor_type is used to differentiate between internal descriptors, and |
74 | * must be in the same place across all descriptors | |
793c2388 BM |
75 | * |
76 | * Note: The descriptor_type and Type fields must appear in the identical | |
77 | * position in both the struct acpi_namespace_node and union acpi_operand_object | |
78 | * structures. | |
1da177e4 | 79 | */ |
61686124 BM |
80 | #define ACPI_OBJECT_COMMON_HEADER \ |
81 | union acpi_operand_object *next_object; /* Objects linked to parent NS node */\ | |
82 | u8 descriptor_type; /* To differentiate various internal objs */\ | |
83 | u8 type; /* acpi_object_type */\ | |
84 | u16 reference_count; /* For object deletion management */\ | |
85 | u8 flags; | |
86 | /* | |
87 | * Note: There are 3 bytes available here before the | |
88 | * next natural alignment boundary (for both 32/64 cases) | |
89 | */ | |
90 | ||
91 | /* Values for Flag byte above */ | |
1da177e4 | 92 | |
20d33aea BM |
93 | #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ |
94 | #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ | |
b595076a | 95 | #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ |
efaed9be LZ |
96 | #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */ |
97 | #define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */ | |
98 | #define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */ | |
99 | #define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */ | |
1da177e4 | 100 | |
1da177e4 LT |
101 | /****************************************************************************** |
102 | * | |
103 | * Basic data types | |
104 | * | |
105 | *****************************************************************************/ | |
106 | ||
4be44fcd LB |
107 | struct acpi_object_common { |
108 | ACPI_OBJECT_COMMON_HEADER}; | |
1da177e4 | 109 | |
4be44fcd | 110 | struct acpi_object_integer { |
7c9626ba | 111 | ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */ |
5df7e6cb | 112 | u64 value; |
1da177e4 LT |
113 | }; |
114 | ||
115 | /* | |
cf48958e BM |
116 | * Note: The String and Buffer object must be identical through the |
117 | * pointer and length elements. There is code that depends on this. | |
61686124 BM |
118 | * |
119 | * Fields common to both Strings and Buffers | |
1da177e4 | 120 | */ |
61686124 BM |
121 | #define ACPI_COMMON_BUFFER_INFO(_type) \ |
122 | _type *pointer; \ | |
123 | u32 length; | |
124 | ||
4be44fcd | 125 | struct acpi_object_string { /* Null terminated, ASCII characters only */ |
61686124 | 126 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(char) /* String in AML stream or allocated string */ |
1da177e4 LT |
127 | }; |
128 | ||
4be44fcd | 129 | struct acpi_object_buffer { |
61686124 | 130 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(u8) /* Buffer in AML stream or allocated buffer */ |
4be44fcd | 131 | u32 aml_length; |
61686124 BM |
132 | u8 *aml_start; |
133 | struct acpi_namespace_node *node; /* Link back to parent node */ | |
1da177e4 LT |
134 | }; |
135 | ||
4be44fcd | 136 | struct acpi_object_package { |
61686124 | 137 | ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Link back to parent node */ |
4be44fcd | 138 | union acpi_operand_object **elements; /* Array of pointers to acpi_objects */ |
61686124 BM |
139 | u8 *aml_start; |
140 | u32 aml_length; | |
141 | u32 count; /* # of elements in package */ | |
1da177e4 LT |
142 | }; |
143 | ||
1da177e4 LT |
144 | /****************************************************************************** |
145 | * | |
146 | * Complex data types | |
147 | * | |
148 | *****************************************************************************/ | |
149 | ||
4be44fcd | 150 | struct acpi_object_event { |
967440e3 | 151 | ACPI_OBJECT_COMMON_HEADER acpi_semaphore os_semaphore; /* Actual OS synchronization object */ |
1da177e4 LT |
152 | }; |
153 | ||
4be44fcd LB |
154 | struct acpi_object_mutex { |
155 | ACPI_OBJECT_COMMON_HEADER u8 sync_level; /* 0-15, specified in Mutex() call */ | |
156 | u16 acquisition_depth; /* Allow multiple Acquires, same thread */ | |
967440e3 | 157 | acpi_mutex os_mutex; /* Actual OS synchronization object */ |
ba886cd4 BM |
158 | acpi_thread_id thread_id; /* Current owner of the mutex */ |
159 | struct acpi_thread_state *owner_thread; /* Current owner of the mutex */ | |
4be44fcd LB |
160 | union acpi_operand_object *prev; /* Link for list of acquired mutexes */ |
161 | union acpi_operand_object *next; /* Link for list of acquired mutexes */ | |
162 | struct acpi_namespace_node *node; /* Containing namespace node */ | |
163 | u8 original_sync_level; /* Owner's original sync level (0-15) */ | |
1da177e4 LT |
164 | }; |
165 | ||
4be44fcd LB |
166 | struct acpi_object_region { |
167 | ACPI_OBJECT_COMMON_HEADER u8 space_id; | |
4be44fcd | 168 | struct acpi_namespace_node *node; /* Containing namespace node */ |
61686124 | 169 | union acpi_operand_object *handler; /* Handler for region access */ |
4be44fcd | 170 | union acpi_operand_object *next; |
4be44fcd | 171 | acpi_physical_address address; |
61686124 BM |
172 | u32 length; |
173 | }; | |
174 | ||
175 | struct acpi_object_method { | |
26294842 | 176 | ACPI_OBJECT_COMMON_HEADER u8 info_flags; |
61686124 | 177 | u8 param_count; |
967440e3 BM |
178 | u8 sync_level; |
179 | union acpi_operand_object *mutex; | |
07b9c912 | 180 | union acpi_operand_object *node; |
61686124 | 181 | u8 *aml_start; |
e31c32cf | 182 | union { |
644ef74e | 183 | acpi_internal_method implementation; |
e31c32cf | 184 | union acpi_operand_object *handler; |
26294842 | 185 | } dispatch; |
e31c32cf | 186 | |
61686124 BM |
187 | u32 aml_length; |
188 | u8 thread_count; | |
189 | acpi_owner_id owner_id; | |
1da177e4 LT |
190 | }; |
191 | ||
26294842 LM |
192 | /* Flags for info_flags field above */ |
193 | ||
194 | #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ | |
195 | #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ | |
196 | #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ | |
197 | #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ | |
d1825579 BM |
198 | #define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ |
199 | #define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ | |
26294842 | 200 | |
1da177e4 LT |
201 | /****************************************************************************** |
202 | * | |
73a3090a | 203 | * Objects that can be notified. All share a common notify_info area. |
1da177e4 LT |
204 | * |
205 | *****************************************************************************/ | |
206 | ||
61686124 BM |
207 | /* |
208 | * Common fields for objects that support ASL notifications | |
209 | */ | |
210 | #define ACPI_COMMON_NOTIFY_INFO \ | |
86ed4bc8 | 211 | union acpi_operand_object *notify_list[2]; /* Handlers for system/device notifies */\ |
61686124 BM |
212 | union acpi_operand_object *handler; /* Handler for Address space */ |
213 | ||
4be44fcd LB |
214 | struct acpi_object_notify_common { /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ |
215 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO}; | |
1da177e4 | 216 | |
4be44fcd | 217 | struct acpi_object_device { |
1da177e4 | 218 | ACPI_OBJECT_COMMON_HEADER |
4be44fcd | 219 | ACPI_COMMON_NOTIFY_INFO struct acpi_gpe_block_info *gpe_block; |
1da177e4 LT |
220 | }; |
221 | ||
4be44fcd LB |
222 | struct acpi_object_power_resource { |
223 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO u32 system_level; | |
224 | u32 resource_order; | |
1da177e4 LT |
225 | }; |
226 | ||
4be44fcd | 227 | struct acpi_object_processor { |
7c9626ba BM |
228 | ACPI_OBJECT_COMMON_HEADER |
229 | /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ | |
230 | u8 proc_id; | |
61686124 | 231 | u8 length; |
fd350943 | 232 | ACPI_COMMON_NOTIFY_INFO acpi_io_address address; |
1da177e4 LT |
233 | }; |
234 | ||
4be44fcd LB |
235 | struct acpi_object_thermal_zone { |
236 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO}; | |
1da177e4 LT |
237 | |
238 | /****************************************************************************** | |
239 | * | |
73a3090a | 240 | * Fields. All share a common header/info field. |
1da177e4 LT |
241 | * |
242 | *****************************************************************************/ | |
243 | ||
61686124 BM |
244 | /* |
245 | * Common bitfield for the field objects | |
246 | * "Field Datum" -- a datum from the actual field object | |
247 | * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field | |
248 | */ | |
249 | #define ACPI_COMMON_FIELD_INFO \ | |
250 | u8 field_flags; /* Access, update, and lock bits */\ | |
251 | u8 attribute; /* From access_as keyword */\ | |
252 | u8 access_byte_width; /* Read/Write size in bytes */\ | |
253 | struct acpi_namespace_node *node; /* Link back to parent node */\ | |
254 | u32 bit_length; /* Length of field in bits */\ | |
255 | u32 base_byte_offset; /* Byte offset within containing object */\ | |
256 | u32 value; /* Value to store into the Bank or Index register */\ | |
257 | u8 start_field_bit_offset;/* Bit offset within first field datum (0-63) */\ | |
9ce81784 | 258 | u8 access_length; /* For serial regions/fields */ |
09387b43 | 259 | |
61686124 | 260 | |
4be44fcd | 261 | struct acpi_object_field_common { /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ |
61686124 | 262 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */ |
1da177e4 LT |
263 | }; |
264 | ||
4be44fcd | 265 | struct acpi_object_region_field { |
9ce81784 BM |
266 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO u16 resource_length; |
267 | union acpi_operand_object *region_obj; /* Containing op_region object */ | |
268 | u8 *resource_buffer; /* resource_template for serial regions/fields */ | |
75ec6e55 | 269 | u16 pin_number_index; /* Index relative to previous Connection/Template */ |
1da177e4 LT |
270 | }; |
271 | ||
4be44fcd LB |
272 | struct acpi_object_bank_field { |
273 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Containing op_region object */ | |
274 | union acpi_operand_object *bank_obj; /* bank_select Register object */ | |
1da177e4 LT |
275 | }; |
276 | ||
4be44fcd LB |
277 | struct acpi_object_index_field { |
278 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO | |
279 | /* | |
b229cf92 | 280 | * No "RegionObj" pointer needed since the Index and Data registers |
4be44fcd LB |
281 | * are each field definitions unto themselves. |
282 | */ | |
283 | union acpi_operand_object *index_obj; /* Index register */ | |
284 | union acpi_operand_object *data_obj; /* Data register */ | |
1da177e4 LT |
285 | }; |
286 | ||
1da177e4 LT |
287 | /* The buffer_field is different in that it is part of a Buffer, not an op_region */ |
288 | ||
4be44fcd LB |
289 | struct acpi_object_buffer_field { |
290 | ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *buffer_obj; /* Containing Buffer object */ | |
1da177e4 LT |
291 | }; |
292 | ||
1da177e4 LT |
293 | /****************************************************************************** |
294 | * | |
295 | * Objects for handlers | |
296 | * | |
297 | *****************************************************************************/ | |
298 | ||
4be44fcd LB |
299 | struct acpi_object_notify_handler { |
300 | ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */ | |
86ed4bc8 BM |
301 | u32 handler_type; /* Type: Device/System/Both */ |
302 | acpi_notify_handler handler; /* Handler address */ | |
4be44fcd | 303 | void *context; |
86ed4bc8 | 304 | union acpi_operand_object *next[2]; /* Device and System handler lists */ |
1da177e4 LT |
305 | }; |
306 | ||
4be44fcd LB |
307 | struct acpi_object_addr_handler { |
308 | ACPI_OBJECT_COMMON_HEADER u8 space_id; | |
61686124 | 309 | u8 handler_flags; |
4be44fcd LB |
310 | acpi_adr_space_handler handler; |
311 | struct acpi_namespace_node *node; /* Parent device */ | |
312 | void *context; | |
313 | acpi_adr_space_setup setup; | |
75c8044f | 314 | union acpi_operand_object *region_list; /* Regions using this handler */ |
4be44fcd | 315 | union acpi_operand_object *next; |
1da177e4 LT |
316 | }; |
317 | ||
61686124 BM |
318 | /* Flags for address handler (handler_flags) */ |
319 | ||
320 | #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 | |
321 | ||
1da177e4 LT |
322 | /****************************************************************************** |
323 | * | |
324 | * Special internal objects | |
325 | * | |
326 | *****************************************************************************/ | |
327 | ||
328 | /* | |
1044f1f6 BM |
329 | * The Reference object is used for these opcodes: |
330 | * Arg[0-6], Local[0-7], index_op, name_op, ref_of_op, load_op, load_table_op, debug_op | |
331 | * The Reference.Class differentiates these types. | |
1da177e4 | 332 | */ |
4be44fcd | 333 | struct acpi_object_reference { |
1044f1f6 BM |
334 | ACPI_OBJECT_COMMON_HEADER u8 class; /* Reference Class */ |
335 | u8 target_type; /* Used for Index Op */ | |
336 | u8 reserved; | |
61686124 | 337 | void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */ |
1044f1f6 BM |
338 | struct acpi_namespace_node *node; /* ref_of or Namepath */ |
339 | union acpi_operand_object **where; /* Target of Index */ | |
fde175e3 | 340 | u8 *index_pointer; /* Used for Buffers and Strings */ |
1044f1f6 | 341 | u32 value; /* Used for Local/Arg/Index/ddb_handle */ |
1da177e4 LT |
342 | }; |
343 | ||
1044f1f6 BM |
344 | /* Values for Reference.Class above */ |
345 | ||
346 | typedef enum { | |
347 | ACPI_REFCLASS_LOCAL = 0, /* Method local */ | |
348 | ACPI_REFCLASS_ARG = 1, /* Method argument */ | |
349 | ACPI_REFCLASS_REFOF = 2, /* Result of ref_of() TBD: Split to Ref/Node and Ref/operand_obj? */ | |
350 | ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ | |
351 | ACPI_REFCLASS_TABLE = 4, /* ddb_handle - Load(), load_table() */ | |
352 | ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ | |
353 | ACPI_REFCLASS_DEBUG = 6, /* Debug object */ | |
354 | ||
355 | ACPI_REFCLASS_MAX = 6 | |
356 | } ACPI_REFERENCE_CLASSES; | |
357 | ||
1da177e4 LT |
358 | /* |
359 | * Extra object is used as additional storage for types that | |
360 | * have AML code in their declarations (term_args) that must be | |
361 | * evaluated at run time. | |
362 | * | |
363 | * Currently: Region and field_unit types | |
364 | */ | |
4be44fcd | 365 | struct acpi_object_extra { |
61686124 | 366 | ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */ |
8931d9ea | 367 | struct acpi_namespace_node *scope_node; |
4be44fcd | 368 | void *region_context; /* Region-specific data */ |
61686124 BM |
369 | u8 *aml_start; |
370 | u32 aml_length; | |
1da177e4 LT |
371 | }; |
372 | ||
1da177e4 LT |
373 | /* Additional data that can be attached to namespace nodes */ |
374 | ||
4be44fcd LB |
375 | struct acpi_object_data { |
376 | ACPI_OBJECT_COMMON_HEADER acpi_object_handler handler; | |
377 | void *pointer; | |
1da177e4 LT |
378 | }; |
379 | ||
1da177e4 LT |
380 | /* Structure used when objects are cached for reuse */ |
381 | ||
4be44fcd LB |
382 | struct acpi_object_cache_list { |
383 | ACPI_OBJECT_COMMON_HEADER union acpi_operand_object *next; /* Link for object cache and internal lists */ | |
1da177e4 LT |
384 | }; |
385 | ||
1da177e4 LT |
386 | /****************************************************************************** |
387 | * | |
ba494bee | 388 | * union acpi_operand_object descriptor - a giant union of all of the above |
1da177e4 LT |
389 | * |
390 | *****************************************************************************/ | |
391 | ||
4be44fcd LB |
392 | union acpi_operand_object { |
393 | struct acpi_object_common common; | |
394 | struct acpi_object_integer integer; | |
395 | struct acpi_object_string string; | |
396 | struct acpi_object_buffer buffer; | |
397 | struct acpi_object_package package; | |
398 | struct acpi_object_event event; | |
399 | struct acpi_object_method method; | |
400 | struct acpi_object_mutex mutex; | |
401 | struct acpi_object_region region; | |
402 | struct acpi_object_notify_common common_notify; | |
403 | struct acpi_object_device device; | |
404 | struct acpi_object_power_resource power_resource; | |
405 | struct acpi_object_processor processor; | |
406 | struct acpi_object_thermal_zone thermal_zone; | |
407 | struct acpi_object_field_common common_field; | |
408 | struct acpi_object_region_field field; | |
409 | struct acpi_object_buffer_field buffer_field; | |
410 | struct acpi_object_bank_field bank_field; | |
411 | struct acpi_object_index_field index_field; | |
412 | struct acpi_object_notify_handler notify; | |
413 | struct acpi_object_addr_handler address_space; | |
414 | struct acpi_object_reference reference; | |
415 | struct acpi_object_extra extra; | |
416 | struct acpi_object_data data; | |
417 | struct acpi_object_cache_list cache; | |
8d5c54b6 BM |
418 | |
419 | /* | |
420 | * Add namespace node to union in order to simplify code that accepts both | |
421 | * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share | |
422 | * a common descriptor_type field in order to differentiate them. | |
423 | */ | |
424 | struct acpi_namespace_node node; | |
1da177e4 LT |
425 | }; |
426 | ||
1da177e4 LT |
427 | /****************************************************************************** |
428 | * | |
429 | * union acpi_descriptor - objects that share a common descriptor identifier | |
430 | * | |
431 | *****************************************************************************/ | |
432 | ||
1da177e4 LT |
433 | /* Object descriptor types */ |
434 | ||
4be44fcd | 435 | #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ |
1da177e4 LT |
436 | #define ACPI_DESC_TYPE_STATE 0x02 |
437 | #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 | |
438 | #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 | |
439 | #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 | |
440 | #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 | |
441 | #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 | |
442 | #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 | |
443 | #define ACPI_DESC_TYPE_STATE_RESULT 0x09 | |
444 | #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A | |
445 | #define ACPI_DESC_TYPE_STATE_THREAD 0x0B | |
446 | #define ACPI_DESC_TYPE_WALK 0x0C | |
447 | #define ACPI_DESC_TYPE_PARSER 0x0D | |
448 | #define ACPI_DESC_TYPE_OPERAND 0x0E | |
449 | #define ACPI_DESC_TYPE_NAMED 0x0F | |
450 | #define ACPI_DESC_TYPE_MAX 0x0F | |
451 | ||
61686124 BM |
452 | struct acpi_common_descriptor { |
453 | void *common_pointer; | |
454 | u8 descriptor_type; /* To differentiate various internal objs */ | |
455 | }; | |
456 | ||
4be44fcd | 457 | union acpi_descriptor { |
61686124 | 458 | struct acpi_common_descriptor common; |
4be44fcd LB |
459 | union acpi_operand_object object; |
460 | struct acpi_namespace_node node; | |
461 | union acpi_parse_object op; | |
1da177e4 LT |
462 | }; |
463 | ||
6e596084 | 464 | #pragma pack() |
7c9626ba | 465 | |
4be44fcd | 466 | #endif /* _ACOBJECT_H */ |