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1/******************************************************************************
2 *
3 * Name: acobject.h - Definition of union acpi_operand_object (Internal object only)
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2016, Intel Corp.
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
47/* acpisrc:struct_defs -- for acpisrc conversion */
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 * Note: The object is optimized to be aligned and will not work if it is
56 * byte-packed.
57 */
58#if ACPI_MACHINE_WIDTH == 64
59#pragma pack(8)
60#else
61#pragma pack(4)
62#endif
63
64/*******************************************************************************
65 *
66 * Common Descriptors
67 *
68 ******************************************************************************/
69
70/*
71 * Common area for all objects.
72 *
73 * descriptor_type is used to differentiate between internal descriptors, and
74 * must be in the same place across all descriptors
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.
79 */
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 */
92
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 */
95#define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */
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 */
100
101/******************************************************************************
102 *
103 * Basic data types
104 *
105 *****************************************************************************/
106
107struct acpi_object_common {
108ACPI_OBJECT_COMMON_HEADER};
109
110struct acpi_object_integer {
111 ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */
112 u64 value;
113};
114
115/*
116 * Note: The String and Buffer object must be identical through the
117 * pointer and length elements. There is code that depends on this.
118 *
119 * Fields common to both Strings and Buffers
120 */
121#define ACPI_COMMON_BUFFER_INFO(_type) \
122 _type *pointer; \
123 u32 length;
124
125struct acpi_object_string { /* Null terminated, ASCII characters only */
126 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(char) /* String in AML stream or allocated string */
127};
128
129struct acpi_object_buffer {
130 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(u8) /* Buffer in AML stream or allocated buffer */
131 u32 aml_length;
132 u8 *aml_start;
133 struct acpi_namespace_node *node; /* Link back to parent node */
134};
135
136struct acpi_object_package {
137 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Link back to parent node */
138 union acpi_operand_object **elements; /* Array of pointers to acpi_objects */
139 u8 *aml_start;
140 u32 aml_length;
141 u32 count; /* # of elements in package */
142};
143
144/******************************************************************************
145 *
146 * Complex data types
147 *
148 *****************************************************************************/
149
150struct acpi_object_event {
151 ACPI_OBJECT_COMMON_HEADER acpi_semaphore os_semaphore; /* Actual OS synchronization object */
152};
153
154struct 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 */
157 acpi_mutex os_mutex; /* Actual OS synchronization object */
158 acpi_thread_id thread_id; /* Current owner of the mutex */
159 struct acpi_thread_state *owner_thread; /* Current owner of the mutex */
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) */
164};
165
166struct acpi_object_region {
167 ACPI_OBJECT_COMMON_HEADER u8 space_id;
168 struct acpi_namespace_node *node; /* Containing namespace node */
169 union acpi_operand_object *handler; /* Handler for region access */
170 union acpi_operand_object *next;
171 acpi_physical_address address;
172 u32 length;
173};
174
175struct acpi_object_method {
176 ACPI_OBJECT_COMMON_HEADER u8 info_flags;
177 u8 param_count;
178 u8 sync_level;
179 union acpi_operand_object *mutex;
180 union acpi_operand_object *node;
181 u8 *aml_start;
182 union {
183 acpi_internal_method implementation;
184 union acpi_operand_object *handler;
185 } dispatch;
186
187 u32 aml_length;
188 u8 thread_count;
189 acpi_owner_id owner_id;
190};
191
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 */
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 */
200
201/******************************************************************************
202 *
203 * Objects that can be notified. All share a common notify_info area.
204 *
205 *****************************************************************************/
206
207/*
208 * Common fields for objects that support ASL notifications
209 */
210#define ACPI_COMMON_NOTIFY_INFO \
211 union acpi_operand_object *notify_list[2]; /* Handlers for system/device notifies */\
212 union acpi_operand_object *handler; /* Handler for Address space */
213
214struct acpi_object_notify_common { /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */
215ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
216
217struct acpi_object_device {
218 ACPI_OBJECT_COMMON_HEADER
219 ACPI_COMMON_NOTIFY_INFO struct acpi_gpe_block_info *gpe_block;
220};
221
222struct acpi_object_power_resource {
223 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO u32 system_level;
224 u32 resource_order;
225};
226
227struct acpi_object_processor {
228 ACPI_OBJECT_COMMON_HEADER
229 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */
230 u8 proc_id;
231 u8 length;
232 ACPI_COMMON_NOTIFY_INFO acpi_io_address address;
233};
234
235struct acpi_object_thermal_zone {
236ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
237
238/******************************************************************************
239 *
240 * Fields. All share a common header/info field.
241 *
242 *****************************************************************************/
243
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) */\
258 u8 access_length; /* For serial regions/fields */
259
260
261struct acpi_object_field_common { /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
262 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */
263};
264
265struct acpi_object_region_field {
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 */
269 u16 pin_number_index; /* Index relative to previous Connection/Template */
270};
271
272struct 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 */
275};
276
277struct acpi_object_index_field {
278 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO
279 /*
280 * No "RegionObj" pointer needed since the Index and Data registers
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 */
285};
286
287/* The buffer_field is different in that it is part of a Buffer, not an op_region */
288
289struct acpi_object_buffer_field {
290 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *buffer_obj; /* Containing Buffer object */
291};
292
293/******************************************************************************
294 *
295 * Objects for handlers
296 *
297 *****************************************************************************/
298
299struct acpi_object_notify_handler {
300 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */
301 u32 handler_type; /* Type: Device/System/Both */
302 acpi_notify_handler handler; /* Handler address */
303 void *context;
304 union acpi_operand_object *next[2]; /* Device and System handler lists */
305};
306
307struct acpi_object_addr_handler {
308 ACPI_OBJECT_COMMON_HEADER u8 space_id;
309 u8 handler_flags;
310 acpi_adr_space_handler handler;
311 struct acpi_namespace_node *node; /* Parent device */
312 void *context;
313 acpi_adr_space_setup setup;
314 union acpi_operand_object *region_list; /* Regions using this handler */
315 union acpi_operand_object *next;
316};
317
318/* Flags for address handler (handler_flags) */
319
320#define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01
321
322/******************************************************************************
323 *
324 * Special internal objects
325 *
326 *****************************************************************************/
327
328/*
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.
332 */
333struct acpi_object_reference {
334 ACPI_OBJECT_COMMON_HEADER u8 class; /* Reference Class */
335 u8 target_type; /* Used for Index Op */
336 u8 reserved;
337 void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */
338 struct acpi_namespace_node *node; /* ref_of or Namepath */
339 union acpi_operand_object **where; /* Target of Index */
340 u8 *index_pointer; /* Used for Buffers and Strings */
341 u32 value; /* Used for Local/Arg/Index/ddb_handle */
342};
343
344/* Values for Reference.Class above */
345
346typedef 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
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 */
365struct acpi_object_extra {
366 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */
367 struct acpi_namespace_node *scope_node;
368 void *region_context; /* Region-specific data */
369 u8 *aml_start;
370 u32 aml_length;
371};
372
373/* Additional data that can be attached to namespace nodes */
374
375struct acpi_object_data {
376 ACPI_OBJECT_COMMON_HEADER acpi_object_handler handler;
377 void *pointer;
378};
379
380/* Structure used when objects are cached for reuse */
381
382struct acpi_object_cache_list {
383 ACPI_OBJECT_COMMON_HEADER union acpi_operand_object *next; /* Link for object cache and internal lists */
384};
385
386/******************************************************************************
387 *
388 * union acpi_operand_object descriptor - a giant union of all of the above
389 *
390 *****************************************************************************/
391
392union 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;
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;
425};
426
427/******************************************************************************
428 *
429 * union acpi_descriptor - objects that share a common descriptor identifier
430 *
431 *****************************************************************************/
432
433/* Object descriptor types */
434
435#define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */
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
452struct acpi_common_descriptor {
453 void *common_pointer;
454 u8 descriptor_type; /* To differentiate various internal objs */
455};
456
457union acpi_descriptor {
458 struct acpi_common_descriptor common;
459 union acpi_operand_object object;
460 struct acpi_namespace_node node;
461 union acpi_parse_object op;
462};
463
464#pragma pack()
465
466#endif /* _ACOBJECT_H */
1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2/******************************************************************************
3 *
4 * Name: acobject.h - Definition of union acpi_operand_object (Internal object only)
5 *
6 * Copyright (C) 2000 - 2019, Intel Corp.
7 *
8 *****************************************************************************/
9
10#ifndef _ACOBJECT_H
11#define _ACOBJECT_H
12
13/* acpisrc:struct_defs -- for acpisrc conversion */
14
15/*
16 * The union acpi_operand_object is used to pass AML operands from the dispatcher
17 * to the interpreter, and to keep track of the various handlers such as
18 * address space handlers and notify handlers. The object is a constant
19 * size in order to allow it to be cached and reused.
20 *
21 * Note: The object is optimized to be aligned and will not work if it is
22 * byte-packed.
23 */
24#if ACPI_MACHINE_WIDTH == 64
25#pragma pack(8)
26#else
27#pragma pack(4)
28#endif
29
30/*******************************************************************************
31 *
32 * Common Descriptors
33 *
34 ******************************************************************************/
35
36/*
37 * Common area for all objects.
38 *
39 * descriptor_type is used to differentiate between internal descriptors, and
40 * must be in the same place across all descriptors
41 *
42 * Note: The descriptor_type and Type fields must appear in the identical
43 * position in both the struct acpi_namespace_node and union acpi_operand_object
44 * structures.
45 */
46#define ACPI_OBJECT_COMMON_HEADER \
47 union acpi_operand_object *next_object; /* Objects linked to parent NS node */\
48 u8 descriptor_type; /* To differentiate various internal objs */\
49 u8 type; /* acpi_object_type */\
50 u16 reference_count; /* For object deletion management */\
51 u8 flags;
52 /*
53 * Note: There are 3 bytes available here before the
54 * next natural alignment boundary (for both 32/64 cases)
55 */
56
57/* Values for Flag byte above */
58
59#define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */
60#define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */
61#define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */
62#define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */
63#define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */
64#define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */
65#define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */
66
67/******************************************************************************
68 *
69 * Basic data types
70 *
71 *****************************************************************************/
72
73struct acpi_object_common {
74ACPI_OBJECT_COMMON_HEADER};
75
76struct acpi_object_integer {
77 ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */
78 u64 value;
79};
80
81/*
82 * Note: The String and Buffer object must be identical through the
83 * pointer and length elements. There is code that depends on this.
84 *
85 * Fields common to both Strings and Buffers
86 */
87#define ACPI_COMMON_BUFFER_INFO(_type) \
88 _type *pointer; \
89 u32 length;
90
91/* Null terminated, ASCII characters only */
92
93struct acpi_object_string {
94 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(char) /* String in AML stream or allocated string */
95};
96
97struct acpi_object_buffer {
98 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(u8) /* Buffer in AML stream or allocated buffer */
99 u32 aml_length;
100 u8 *aml_start;
101 struct acpi_namespace_node *node; /* Link back to parent node */
102};
103
104struct acpi_object_package {
105 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Link back to parent node */
106 union acpi_operand_object **elements; /* Array of pointers to acpi_objects */
107 u8 *aml_start;
108 u32 aml_length;
109 u32 count; /* # of elements in package */
110};
111
112/******************************************************************************
113 *
114 * Complex data types
115 *
116 *****************************************************************************/
117
118struct acpi_object_event {
119 ACPI_OBJECT_COMMON_HEADER acpi_semaphore os_semaphore; /* Actual OS synchronization object */
120};
121
122struct acpi_object_mutex {
123 ACPI_OBJECT_COMMON_HEADER u8 sync_level; /* 0-15, specified in Mutex() call */
124 u16 acquisition_depth; /* Allow multiple Acquires, same thread */
125 acpi_mutex os_mutex; /* Actual OS synchronization object */
126 acpi_thread_id thread_id; /* Current owner of the mutex */
127 struct acpi_thread_state *owner_thread; /* Current owner of the mutex */
128 union acpi_operand_object *prev; /* Link for list of acquired mutexes */
129 union acpi_operand_object *next; /* Link for list of acquired mutexes */
130 struct acpi_namespace_node *node; /* Containing namespace node */
131 u8 original_sync_level; /* Owner's original sync level (0-15) */
132};
133
134struct acpi_object_region {
135 ACPI_OBJECT_COMMON_HEADER u8 space_id;
136 struct acpi_namespace_node *node; /* Containing namespace node */
137 union acpi_operand_object *handler; /* Handler for region access */
138 union acpi_operand_object *next;
139 acpi_physical_address address;
140 u32 length;
141};
142
143struct acpi_object_method {
144 ACPI_OBJECT_COMMON_HEADER u8 info_flags;
145 u8 param_count;
146 u8 sync_level;
147 union acpi_operand_object *mutex;
148 union acpi_operand_object *node;
149 u8 *aml_start;
150 union {
151 acpi_internal_method implementation;
152 union acpi_operand_object *handler;
153 } dispatch;
154
155 u32 aml_length;
156 acpi_owner_id owner_id;
157 u8 thread_count;
158};
159
160/* Flags for info_flags field above */
161
162#define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */
163#define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */
164#define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */
165#define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */
166#define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */
167#define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */
168
169/******************************************************************************
170 *
171 * Objects that can be notified. All share a common notify_info area.
172 *
173 *****************************************************************************/
174
175/*
176 * Common fields for objects that support ASL notifications
177 */
178#define ACPI_COMMON_NOTIFY_INFO \
179 union acpi_operand_object *notify_list[2]; /* Handlers for system/device notifies */\
180 union acpi_operand_object *handler; /* Handler for Address space */
181
182/* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */
183
184struct acpi_object_notify_common {
185ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
186
187struct acpi_object_device {
188 ACPI_OBJECT_COMMON_HEADER
189 ACPI_COMMON_NOTIFY_INFO struct acpi_gpe_block_info *gpe_block;
190};
191
192struct acpi_object_power_resource {
193 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO u32 system_level;
194 u32 resource_order;
195};
196
197struct acpi_object_processor {
198 ACPI_OBJECT_COMMON_HEADER
199 /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */
200 u8 proc_id;
201 u8 length;
202 ACPI_COMMON_NOTIFY_INFO acpi_io_address address;
203};
204
205struct acpi_object_thermal_zone {
206ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
207
208/******************************************************************************
209 *
210 * Fields. All share a common header/info field.
211 *
212 *****************************************************************************/
213
214/*
215 * Common bitfield for the field objects
216 * "Field Datum" -- a datum from the actual field object
217 * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field
218 */
219#define ACPI_COMMON_FIELD_INFO \
220 u8 field_flags; /* Access, update, and lock bits */\
221 u8 attribute; /* From access_as keyword */\
222 u8 access_byte_width; /* Read/Write size in bytes */\
223 struct acpi_namespace_node *node; /* Link back to parent node */\
224 u32 bit_length; /* Length of field in bits */\
225 u32 base_byte_offset; /* Byte offset within containing object */\
226 u32 value; /* Value to store into the Bank or Index register */\
227 u8 start_field_bit_offset;/* Bit offset within first field datum (0-63) */\
228 u8 access_length; /* For serial regions/fields */
229
230
231/* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
232
233struct acpi_object_field_common {
234 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */
235};
236
237struct acpi_object_region_field {
238 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO u16 resource_length;
239 union acpi_operand_object *region_obj; /* Containing op_region object */
240 u8 *resource_buffer; /* resource_template for serial regions/fields */
241 u16 pin_number_index; /* Index relative to previous Connection/Template */
242 u8 *internal_pcc_buffer; /* Internal buffer for fields associated with PCC */
243};
244
245struct acpi_object_bank_field {
246 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Containing op_region object */
247 union acpi_operand_object *bank_obj; /* bank_select Register object */
248};
249
250struct acpi_object_index_field {
251 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO
252 /*
253 * No "RegionObj" pointer needed since the Index and Data registers
254 * are each field definitions unto themselves.
255 */
256 union acpi_operand_object *index_obj; /* Index register */
257 union acpi_operand_object *data_obj; /* Data register */
258};
259
260/* The buffer_field is different in that it is part of a Buffer, not an op_region */
261
262struct acpi_object_buffer_field {
263 ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *buffer_obj; /* Containing Buffer object */
264};
265
266/******************************************************************************
267 *
268 * Objects for handlers
269 *
270 *****************************************************************************/
271
272struct acpi_object_notify_handler {
273 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */
274 u32 handler_type; /* Type: Device/System/Both */
275 acpi_notify_handler handler; /* Handler address */
276 void *context;
277 union acpi_operand_object *next[2]; /* Device and System handler lists */
278};
279
280struct acpi_object_addr_handler {
281 ACPI_OBJECT_COMMON_HEADER u8 space_id;
282 u8 handler_flags;
283 acpi_adr_space_handler handler;
284 struct acpi_namespace_node *node; /* Parent device */
285 void *context;
286 acpi_adr_space_setup setup;
287 union acpi_operand_object *region_list; /* Regions using this handler */
288 union acpi_operand_object *next;
289};
290
291/* Flags for address handler (handler_flags) */
292
293#define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01
294
295/******************************************************************************
296 *
297 * Special internal objects
298 *
299 *****************************************************************************/
300
301/*
302 * The Reference object is used for these opcodes:
303 * Arg[0-6], Local[0-7], index_op, name_op, ref_of_op, load_op, load_table_op, debug_op
304 * The Reference.Class differentiates these types.
305 */
306struct acpi_object_reference {
307 ACPI_OBJECT_COMMON_HEADER u8 class; /* Reference Class */
308 u8 target_type; /* Used for Index Op */
309 u8 resolved; /* Reference has been resolved to a value */
310 void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */
311 struct acpi_namespace_node *node; /* ref_of or Namepath */
312 union acpi_operand_object **where; /* Target of Index */
313 u8 *index_pointer; /* Used for Buffers and Strings */
314 u8 *aml; /* Used for deferred resolution of the ref */
315 u32 value; /* Used for Local/Arg/Index/ddb_handle */
316};
317
318/* Values for Reference.Class above */
319
320typedef enum {
321 ACPI_REFCLASS_LOCAL = 0, /* Method local */
322 ACPI_REFCLASS_ARG = 1, /* Method argument */
323 ACPI_REFCLASS_REFOF = 2, /* Result of ref_of() TBD: Split to Ref/Node and Ref/operand_obj? */
324 ACPI_REFCLASS_INDEX = 3, /* Result of Index() */
325 ACPI_REFCLASS_TABLE = 4, /* ddb_handle - Load(), load_table() */
326 ACPI_REFCLASS_NAME = 5, /* Reference to a named object */
327 ACPI_REFCLASS_DEBUG = 6, /* Debug object */
328
329 ACPI_REFCLASS_MAX = 6
330} ACPI_REFERENCE_CLASSES;
331
332/*
333 * Extra object is used as additional storage for types that
334 * have AML code in their declarations (term_args) that must be
335 * evaluated at run time.
336 *
337 * Currently: Region and field_unit types
338 */
339struct acpi_object_extra {
340 ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */
341 struct acpi_namespace_node *scope_node;
342 void *region_context; /* Region-specific data */
343 u8 *aml_start;
344 u32 aml_length;
345};
346
347/* Additional data that can be attached to namespace nodes */
348
349struct acpi_object_data {
350 ACPI_OBJECT_COMMON_HEADER acpi_object_handler handler;
351 void *pointer;
352};
353
354/* Structure used when objects are cached for reuse */
355
356struct acpi_object_cache_list {
357 ACPI_OBJECT_COMMON_HEADER union acpi_operand_object *next; /* Link for object cache and internal lists */
358};
359
360/******************************************************************************
361 *
362 * union acpi_operand_object descriptor - a giant union of all of the above
363 *
364 *****************************************************************************/
365
366union acpi_operand_object {
367 struct acpi_object_common common;
368 struct acpi_object_integer integer;
369 struct acpi_object_string string;
370 struct acpi_object_buffer buffer;
371 struct acpi_object_package package;
372 struct acpi_object_event event;
373 struct acpi_object_method method;
374 struct acpi_object_mutex mutex;
375 struct acpi_object_region region;
376 struct acpi_object_notify_common common_notify;
377 struct acpi_object_device device;
378 struct acpi_object_power_resource power_resource;
379 struct acpi_object_processor processor;
380 struct acpi_object_thermal_zone thermal_zone;
381 struct acpi_object_field_common common_field;
382 struct acpi_object_region_field field;
383 struct acpi_object_buffer_field buffer_field;
384 struct acpi_object_bank_field bank_field;
385 struct acpi_object_index_field index_field;
386 struct acpi_object_notify_handler notify;
387 struct acpi_object_addr_handler address_space;
388 struct acpi_object_reference reference;
389 struct acpi_object_extra extra;
390 struct acpi_object_data data;
391 struct acpi_object_cache_list cache;
392
393 /*
394 * Add namespace node to union in order to simplify code that accepts both
395 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share
396 * a common descriptor_type field in order to differentiate them.
397 */
398 struct acpi_namespace_node node;
399};
400
401/******************************************************************************
402 *
403 * union acpi_descriptor - objects that share a common descriptor identifier
404 *
405 *****************************************************************************/
406
407/* Object descriptor types */
408
409#define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */
410#define ACPI_DESC_TYPE_STATE 0x02
411#define ACPI_DESC_TYPE_STATE_UPDATE 0x03
412#define ACPI_DESC_TYPE_STATE_PACKAGE 0x04
413#define ACPI_DESC_TYPE_STATE_CONTROL 0x05
414#define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06
415#define ACPI_DESC_TYPE_STATE_PSCOPE 0x07
416#define ACPI_DESC_TYPE_STATE_WSCOPE 0x08
417#define ACPI_DESC_TYPE_STATE_RESULT 0x09
418#define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A
419#define ACPI_DESC_TYPE_STATE_THREAD 0x0B
420#define ACPI_DESC_TYPE_WALK 0x0C
421#define ACPI_DESC_TYPE_PARSER 0x0D
422#define ACPI_DESC_TYPE_OPERAND 0x0E
423#define ACPI_DESC_TYPE_NAMED 0x0F
424#define ACPI_DESC_TYPE_MAX 0x0F
425
426struct acpi_common_descriptor {
427 void *common_pointer;
428 u8 descriptor_type; /* To differentiate various internal objs */
429};
430
431union acpi_descriptor {
432 struct acpi_common_descriptor common;
433 union acpi_operand_object object;
434 struct acpi_namespace_node node;
435 union acpi_parse_object op;
436};
437
438#pragma pack()
439
440#endif /* _ACOBJECT_H */