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1 | |
2 | /****************************************************************************** | |
3 | * | |
4 | * Name: acobject.h - Definition of union acpi_operand_object (Internal object only) | |
5 | * | |
6 | *****************************************************************************/ | |
7 | ||
8 | /* | |
9 | * Copyright (C) 2000 - 2005, R. Byron Moore | |
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 | ||
49 | /* | |
50 | * The union acpi_operand_object is used to pass AML operands from the dispatcher | |
51 | * to the interpreter, and to keep track of the various handlers such as | |
52 | * address space handlers and notify handlers. The object is a constant | |
53 | * size in order to allow it to be cached and reused. | |
54 | */ | |
55 | ||
56 | /******************************************************************************* | |
57 | * | |
58 | * Common Descriptors | |
59 | * | |
60 | ******************************************************************************/ | |
61 | ||
62 | /* | |
63 | * Common area for all objects. | |
64 | * | |
65 | * data_type is used to differentiate between internal descriptors, and MUST | |
66 | * be the first byte in this structure. | |
67 | */ | |
68 | #define ACPI_OBJECT_COMMON_HEADER /* SIZE/ALIGNMENT: 32 bits, one ptr plus trailing 8-bit flag */\ | |
69 | u8 descriptor; /* To differentiate various internal objs */\ | |
70 | u8 type; /* acpi_object_type */\ | |
71 | u16 reference_count; /* For object deletion management */\ | |
72 | union acpi_operand_object *next_object; /* Objects linked to parent NS node */\ | |
73 | u8 flags; \ | |
74 | ||
75 | /* Values for flag byte above */ | |
76 | ||
77 | #define AOPOBJ_AML_CONSTANT 0x01 | |
78 | #define AOPOBJ_STATIC_POINTER 0x02 | |
79 | #define AOPOBJ_DATA_VALID 0x04 | |
80 | #define AOPOBJ_OBJECT_INITIALIZED 0x08 | |
81 | #define AOPOBJ_SETUP_COMPLETE 0x10 | |
82 | #define AOPOBJ_SINGLE_DATUM 0x20 | |
83 | ||
84 | ||
85 | /* | |
86 | * Common bitfield for the field objects | |
87 | * "Field Datum" -- a datum from the actual field object | |
88 | * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field | |
89 | */ | |
90 | #define ACPI_COMMON_FIELD_INFO /* SIZE/ALIGNMENT: 24 bits + three 32-bit values */\ | |
91 | u8 field_flags; /* Access, update, and lock bits */\ | |
92 | u8 attribute; /* From access_as keyword */\ | |
93 | u8 access_byte_width; /* Read/Write size in bytes */\ | |
94 | u32 bit_length; /* Length of field in bits */\ | |
95 | u32 base_byte_offset; /* Byte offset within containing object */\ | |
96 | u8 start_field_bit_offset;/* Bit offset within first field datum (0-63) */\ | |
97 | u8 access_bit_width; /* Read/Write size in bits (8-64) */\ | |
98 | u32 value; /* Value to store into the Bank or Index register */\ | |
99 | struct acpi_namespace_node *node; /* Link back to parent node */ | |
100 | ||
101 | ||
102 | /* | |
103 | * Fields common to both Strings and Buffers | |
104 | */ | |
105 | #define ACPI_COMMON_BUFFER_INFO \ | |
106 | u32 length; | |
107 | ||
108 | ||
109 | /* | |
110 | * Common fields for objects that support ASL notifications | |
111 | */ | |
112 | #define ACPI_COMMON_NOTIFY_INFO \ | |
113 | union acpi_operand_object *system_notify; /* Handler for system notifies */\ | |
114 | union acpi_operand_object *device_notify; /* Handler for driver notifies */\ | |
115 | union acpi_operand_object *handler; /* Handler for Address space */ | |
116 | ||
117 | ||
118 | /****************************************************************************** | |
119 | * | |
120 | * Basic data types | |
121 | * | |
122 | *****************************************************************************/ | |
123 | ||
124 | struct acpi_object_common | |
125 | { | |
126 | ACPI_OBJECT_COMMON_HEADER | |
127 | }; | |
128 | ||
129 | ||
130 | struct acpi_object_integer | |
131 | { | |
132 | ACPI_OBJECT_COMMON_HEADER | |
133 | acpi_integer value; | |
134 | }; | |
135 | ||
136 | /* | |
137 | * Note: The String and Buffer object must be identical through the Pointer | |
138 | * element. There is code that depends on this. | |
139 | */ | |
140 | struct acpi_object_string /* Null terminated, ASCII characters only */ | |
141 | { | |
142 | ACPI_OBJECT_COMMON_HEADER | |
143 | ACPI_COMMON_BUFFER_INFO | |
144 | char *pointer; /* String in AML stream or allocated string */ | |
145 | }; | |
146 | ||
147 | ||
148 | struct acpi_object_buffer | |
149 | { | |
150 | ACPI_OBJECT_COMMON_HEADER | |
151 | ACPI_COMMON_BUFFER_INFO | |
152 | u8 *pointer; /* Buffer in AML stream or allocated buffer */ | |
153 | struct acpi_namespace_node *node; /* Link back to parent node */ | |
154 | u8 *aml_start; | |
155 | u32 aml_length; | |
156 | }; | |
157 | ||
158 | ||
159 | struct acpi_object_package | |
160 | { | |
161 | ACPI_OBJECT_COMMON_HEADER | |
162 | ||
163 | u32 count; /* # of elements in package */ | |
164 | u32 aml_length; | |
165 | u8 *aml_start; | |
166 | struct acpi_namespace_node *node; /* Link back to parent node */ | |
167 | union acpi_operand_object **elements; /* Array of pointers to acpi_objects */ | |
168 | }; | |
169 | ||
170 | ||
171 | /****************************************************************************** | |
172 | * | |
173 | * Complex data types | |
174 | * | |
175 | *****************************************************************************/ | |
176 | ||
177 | struct acpi_object_event | |
178 | { | |
179 | ACPI_OBJECT_COMMON_HEADER | |
180 | void *semaphore; | |
181 | }; | |
182 | ||
183 | ||
184 | #define ACPI_INFINITE_CONCURRENCY 0xFF | |
185 | ||
186 | typedef | |
187 | acpi_status (*ACPI_INTERNAL_METHOD) ( | |
188 | struct acpi_walk_state *walk_state); | |
189 | ||
190 | struct acpi_object_method | |
191 | { | |
192 | ACPI_OBJECT_COMMON_HEADER | |
193 | u8 method_flags; | |
194 | u8 param_count; | |
195 | u32 aml_length; | |
196 | void *semaphore; | |
197 | u8 *aml_start; | |
198 | ACPI_INTERNAL_METHOD implementation; | |
199 | u8 concurrency; | |
200 | u8 thread_count; | |
201 | acpi_owner_id owning_id; | |
202 | }; | |
203 | ||
204 | ||
205 | struct acpi_object_mutex | |
206 | { | |
207 | ACPI_OBJECT_COMMON_HEADER | |
208 | u8 sync_level; /* 0-15, specified in Mutex() call */ | |
209 | u16 acquisition_depth; /* Allow multiple Acquires, same thread */ | |
210 | struct acpi_thread_state *owner_thread; /* Current owner of the mutex */ | |
211 | void *semaphore; /* Actual OS synchronization object */ | |
212 | union acpi_operand_object *prev; /* Link for list of acquired mutexes */ | |
213 | union acpi_operand_object *next; /* Link for list of acquired mutexes */ | |
214 | struct acpi_namespace_node *node; /* Containing namespace node */ | |
215 | u8 original_sync_level; /* Owner's original sync level (0-15) */ | |
216 | }; | |
217 | ||
218 | ||
219 | struct acpi_object_region | |
220 | { | |
221 | ACPI_OBJECT_COMMON_HEADER | |
222 | ||
223 | u8 space_id; | |
224 | union acpi_operand_object *handler; /* Handler for region access */ | |
225 | struct acpi_namespace_node *node; /* Containing namespace node */ | |
226 | union acpi_operand_object *next; | |
227 | u32 length; | |
228 | acpi_physical_address address; | |
229 | }; | |
230 | ||
231 | ||
232 | /****************************************************************************** | |
233 | * | |
234 | * Objects that can be notified. All share a common notify_info area. | |
235 | * | |
236 | *****************************************************************************/ | |
237 | ||
238 | struct acpi_object_notify_common /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ | |
239 | { | |
240 | ACPI_OBJECT_COMMON_HEADER | |
241 | ACPI_COMMON_NOTIFY_INFO | |
242 | }; | |
243 | ||
244 | ||
245 | struct acpi_object_device | |
246 | { | |
247 | ACPI_OBJECT_COMMON_HEADER | |
248 | ACPI_COMMON_NOTIFY_INFO | |
249 | struct acpi_gpe_block_info *gpe_block; | |
250 | }; | |
251 | ||
252 | ||
253 | struct acpi_object_power_resource | |
254 | { | |
255 | ACPI_OBJECT_COMMON_HEADER | |
256 | ACPI_COMMON_NOTIFY_INFO | |
257 | u32 system_level; | |
258 | u32 resource_order; | |
259 | }; | |
260 | ||
261 | ||
262 | struct acpi_object_processor | |
263 | { | |
264 | ACPI_OBJECT_COMMON_HEADER | |
265 | ACPI_COMMON_NOTIFY_INFO | |
266 | u32 proc_id; | |
267 | u32 length; | |
268 | acpi_io_address address; | |
269 | }; | |
270 | ||
271 | ||
272 | struct acpi_object_thermal_zone | |
273 | { | |
274 | ACPI_OBJECT_COMMON_HEADER | |
275 | ACPI_COMMON_NOTIFY_INFO | |
276 | }; | |
277 | ||
278 | ||
279 | /****************************************************************************** | |
280 | * | |
281 | * Fields. All share a common header/info field. | |
282 | * | |
283 | *****************************************************************************/ | |
284 | ||
285 | struct acpi_object_field_common /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ | |
286 | { | |
287 | ACPI_OBJECT_COMMON_HEADER | |
288 | ACPI_COMMON_FIELD_INFO | |
289 | union acpi_operand_object *region_obj; /* Containing Operation Region object */ | |
290 | /* (REGION/BANK fields only) */ | |
291 | }; | |
292 | ||
293 | ||
294 | struct acpi_object_region_field | |
295 | { | |
296 | ACPI_OBJECT_COMMON_HEADER | |
297 | ACPI_COMMON_FIELD_INFO | |
298 | union acpi_operand_object *region_obj; /* Containing op_region object */ | |
299 | }; | |
300 | ||
301 | ||
302 | struct acpi_object_bank_field | |
303 | { | |
304 | ACPI_OBJECT_COMMON_HEADER | |
305 | ACPI_COMMON_FIELD_INFO | |
306 | union acpi_operand_object *region_obj; /* Containing op_region object */ | |
307 | union acpi_operand_object *bank_obj; /* bank_select Register object */ | |
308 | }; | |
309 | ||
310 | ||
311 | struct acpi_object_index_field | |
312 | { | |
313 | ACPI_OBJECT_COMMON_HEADER | |
314 | ACPI_COMMON_FIELD_INFO | |
315 | ||
316 | /* | |
317 | * No "region_obj" pointer needed since the Index and Data registers | |
318 | * are each field definitions unto themselves. | |
319 | */ | |
320 | union acpi_operand_object *index_obj; /* Index register */ | |
321 | union acpi_operand_object *data_obj; /* Data register */ | |
322 | }; | |
323 | ||
324 | ||
325 | /* The buffer_field is different in that it is part of a Buffer, not an op_region */ | |
326 | ||
327 | struct acpi_object_buffer_field | |
328 | { | |
329 | ACPI_OBJECT_COMMON_HEADER | |
330 | ACPI_COMMON_FIELD_INFO | |
331 | union acpi_operand_object *buffer_obj; /* Containing Buffer object */ | |
332 | }; | |
333 | ||
334 | ||
335 | /****************************************************************************** | |
336 | * | |
337 | * Objects for handlers | |
338 | * | |
339 | *****************************************************************************/ | |
340 | ||
341 | struct acpi_object_notify_handler | |
342 | { | |
343 | ACPI_OBJECT_COMMON_HEADER | |
344 | struct acpi_namespace_node *node; /* Parent device */ | |
345 | acpi_notify_handler handler; | |
346 | void *context; | |
347 | }; | |
348 | ||
349 | ||
350 | /* Flags for address handler */ | |
351 | ||
352 | #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x1 | |
353 | ||
354 | ||
355 | struct acpi_object_addr_handler | |
356 | { | |
357 | ACPI_OBJECT_COMMON_HEADER | |
358 | u8 space_id; | |
359 | u16 hflags; | |
360 | acpi_adr_space_handler handler; | |
361 | struct acpi_namespace_node *node; /* Parent device */ | |
362 | void *context; | |
363 | acpi_adr_space_setup setup; | |
364 | union acpi_operand_object *region_list; /* regions using this handler */ | |
365 | union acpi_operand_object *next; | |
366 | }; | |
367 | ||
368 | ||
369 | /****************************************************************************** | |
370 | * | |
371 | * Special internal objects | |
372 | * | |
373 | *****************************************************************************/ | |
374 | ||
375 | /* | |
376 | * The Reference object type is used for these opcodes: | |
377 | * Arg[0-6], Local[0-7], index_op, name_op, zero_op, one_op, ones_op, debug_op | |
378 | */ | |
379 | struct acpi_object_reference | |
380 | { | |
381 | ACPI_OBJECT_COMMON_HEADER | |
382 | u8 target_type; /* Used for index_op */ | |
383 | u16 opcode; | |
384 | u32 offset; /* Used for arg_op, local_op, and index_op */ | |
385 | void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */ | |
386 | struct acpi_namespace_node *node; | |
387 | union acpi_operand_object **where; | |
388 | }; | |
389 | ||
390 | ||
391 | /* | |
392 | * Extra object is used as additional storage for types that | |
393 | * have AML code in their declarations (term_args) that must be | |
394 | * evaluated at run time. | |
395 | * | |
396 | * Currently: Region and field_unit types | |
397 | */ | |
398 | struct acpi_object_extra | |
399 | { | |
400 | ACPI_OBJECT_COMMON_HEADER | |
401 | u8 byte_fill1; | |
402 | u16 word_fill1; | |
403 | u32 aml_length; | |
404 | u8 *aml_start; | |
405 | struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */ | |
406 | void *region_context; /* Region-specific data */ | |
407 | }; | |
408 | ||
409 | ||
410 | /* Additional data that can be attached to namespace nodes */ | |
411 | ||
412 | struct acpi_object_data | |
413 | { | |
414 | ACPI_OBJECT_COMMON_HEADER | |
415 | acpi_object_handler handler; | |
416 | void *pointer; | |
417 | }; | |
418 | ||
419 | ||
420 | /* Structure used when objects are cached for reuse */ | |
421 | ||
422 | struct acpi_object_cache_list | |
423 | { | |
424 | ACPI_OBJECT_COMMON_HEADER | |
425 | union acpi_operand_object *next; /* Link for object cache and internal lists*/ | |
426 | }; | |
427 | ||
428 | ||
429 | /****************************************************************************** | |
430 | * | |
431 | * union acpi_operand_object Descriptor - a giant union of all of the above | |
432 | * | |
433 | *****************************************************************************/ | |
434 | ||
435 | union acpi_operand_object | |
436 | { | |
437 | struct acpi_object_common common; | |
438 | struct acpi_object_integer integer; | |
439 | struct acpi_object_string string; | |
440 | struct acpi_object_buffer buffer; | |
441 | struct acpi_object_package package; | |
442 | struct acpi_object_event event; | |
443 | struct acpi_object_method method; | |
444 | struct acpi_object_mutex mutex; | |
445 | struct acpi_object_region region; | |
446 | struct acpi_object_notify_common common_notify; | |
447 | struct acpi_object_device device; | |
448 | struct acpi_object_power_resource power_resource; | |
449 | struct acpi_object_processor processor; | |
450 | struct acpi_object_thermal_zone thermal_zone; | |
451 | struct acpi_object_field_common common_field; | |
452 | struct acpi_object_region_field field; | |
453 | struct acpi_object_buffer_field buffer_field; | |
454 | struct acpi_object_bank_field bank_field; | |
455 | struct acpi_object_index_field index_field; | |
456 | struct acpi_object_notify_handler notify; | |
457 | struct acpi_object_addr_handler address_space; | |
458 | struct acpi_object_reference reference; | |
459 | struct acpi_object_extra extra; | |
460 | struct acpi_object_data data; | |
461 | struct acpi_object_cache_list cache; | |
462 | }; | |
463 | ||
464 | ||
465 | /****************************************************************************** | |
466 | * | |
467 | * union acpi_descriptor - objects that share a common descriptor identifier | |
468 | * | |
469 | *****************************************************************************/ | |
470 | ||
471 | ||
472 | /* Object descriptor types */ | |
473 | ||
474 | #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ | |
475 | #define ACPI_DESC_TYPE_STATE 0x02 | |
476 | #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 | |
477 | #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 | |
478 | #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 | |
479 | #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 | |
480 | #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 | |
481 | #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 | |
482 | #define ACPI_DESC_TYPE_STATE_RESULT 0x09 | |
483 | #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A | |
484 | #define ACPI_DESC_TYPE_STATE_THREAD 0x0B | |
485 | #define ACPI_DESC_TYPE_WALK 0x0C | |
486 | #define ACPI_DESC_TYPE_PARSER 0x0D | |
487 | #define ACPI_DESC_TYPE_OPERAND 0x0E | |
488 | #define ACPI_DESC_TYPE_NAMED 0x0F | |
489 | #define ACPI_DESC_TYPE_MAX 0x0F | |
490 | ||
491 | ||
492 | union acpi_descriptor | |
493 | { | |
494 | u8 descriptor_id; /* To differentiate various internal objs */\ | |
495 | union acpi_operand_object object; | |
496 | struct acpi_namespace_node node; | |
497 | union acpi_parse_object op; | |
498 | }; | |
499 | ||
500 | ||
501 | #endif /* _ACOBJECT_H */ |