xref: /linux/drivers/acpi/acpica/aclocal.h (revision cdb138080b78146d1cdadba9f5dadbeb97445b91)
1 /******************************************************************************
2  *
3  * Name: aclocal.h - Internal data types used across the ACPI subsystem
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2010, 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 __ACLOCAL_H__
45 #define __ACLOCAL_H__
46 
47 /* acpisrc:struct_defs -- for acpisrc conversion */
48 
49 #define ACPI_SERIALIZED                 0xFF
50 
51 typedef u32 acpi_mutex_handle;
52 #define ACPI_GLOBAL_LOCK                (acpi_semaphore) (-1)
53 
54 /* Total number of aml opcodes defined */
55 
56 #define AML_NUM_OPCODES                 0x7F
57 
58 /* Forward declarations */
59 
60 struct acpi_walk_state;
61 struct acpi_obj_mutex;
62 union acpi_parse_object;
63 
64 /*****************************************************************************
65  *
66  * Mutex typedefs and structs
67  *
68  ****************************************************************************/
69 
70 /*
71  * Predefined handles for the mutex objects used within the subsystem
72  * All mutex objects are automatically created by acpi_ut_mutex_initialize.
73  *
74  * The acquire/release ordering protocol is implied via this list. Mutexes
75  * with a lower value must be acquired before mutexes with a higher value.
76  *
77  * NOTE: any changes here must be reflected in the acpi_gbl_mutex_names
78  * table below also!
79  */
80 #define ACPI_MTX_INTERPRETER            0	/* AML Interpreter, main lock */
81 #define ACPI_MTX_NAMESPACE              1	/* ACPI Namespace */
82 #define ACPI_MTX_TABLES                 2	/* Data for ACPI tables */
83 #define ACPI_MTX_EVENTS                 3	/* Data for ACPI events */
84 #define ACPI_MTX_CACHES                 4	/* Internal caches, general purposes */
85 #define ACPI_MTX_MEMORY                 5	/* Debug memory tracking lists */
86 #define ACPI_MTX_DEBUG_CMD_COMPLETE     6	/* AML debugger */
87 #define ACPI_MTX_DEBUG_CMD_READY        7	/* AML debugger */
88 
89 #define ACPI_MAX_MUTEX                  7
90 #define ACPI_NUM_MUTEX                  ACPI_MAX_MUTEX+1
91 
92 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
93 #ifdef DEFINE_ACPI_GLOBALS
94 
95 /* Debug names for the mutexes above */
96 
97 static char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
98 	"ACPI_MTX_Interpreter",
99 	"ACPI_MTX_Namespace",
100 	"ACPI_MTX_Tables",
101 	"ACPI_MTX_Events",
102 	"ACPI_MTX_Caches",
103 	"ACPI_MTX_Memory",
104 	"ACPI_MTX_CommandComplete",
105 	"ACPI_MTX_CommandReady"
106 };
107 
108 #endif
109 #endif
110 
111 /* Lock structure for reader/writer interfaces */
112 
113 struct acpi_rw_lock {
114 	acpi_mutex writer_mutex;
115 	acpi_mutex reader_mutex;
116 	u32 num_readers;
117 };
118 
119 /*
120  * Predefined handles for spinlocks used within the subsystem.
121  * These spinlocks are created by acpi_ut_mutex_initialize
122  */
123 #define ACPI_LOCK_GPES                  0
124 #define ACPI_LOCK_HARDWARE              1
125 
126 #define ACPI_MAX_LOCK                   1
127 #define ACPI_NUM_LOCK                   ACPI_MAX_LOCK+1
128 
129 /* This Thread ID means that the mutex is not in use (unlocked) */
130 
131 #define ACPI_MUTEX_NOT_ACQUIRED         (acpi_thread_id) 0
132 
133 /* Table for the global mutexes */
134 
135 struct acpi_mutex_info {
136 	acpi_mutex mutex;
137 	u32 use_count;
138 	acpi_thread_id thread_id;
139 };
140 
141 /* Lock flag parameter for various interfaces */
142 
143 #define ACPI_MTX_DO_NOT_LOCK            0
144 #define ACPI_MTX_LOCK                   1
145 
146 /* Field access granularities */
147 
148 #define ACPI_FIELD_BYTE_GRANULARITY     1
149 #define ACPI_FIELD_WORD_GRANULARITY     2
150 #define ACPI_FIELD_DWORD_GRANULARITY    4
151 #define ACPI_FIELD_QWORD_GRANULARITY    8
152 
153 #define ACPI_ENTRY_NOT_FOUND            NULL
154 
155 /*****************************************************************************
156  *
157  * Namespace typedefs and structs
158  *
159  ****************************************************************************/
160 
161 /* Operational modes of the AML interpreter/scanner */
162 
163 typedef enum {
164 	ACPI_IMODE_LOAD_PASS1 = 0x01,
165 	ACPI_IMODE_LOAD_PASS2 = 0x02,
166 	ACPI_IMODE_EXECUTE = 0x03
167 } acpi_interpreter_mode;
168 
169 /*
170  * The Namespace Node describes a named object that appears in the AML.
171  * descriptor_type is used to differentiate between internal descriptors.
172  *
173  * The node is optimized for both 32-bit and 64-bit platforms:
174  * 20 bytes for the 32-bit case, 32 bytes for the 64-bit case.
175  *
176  * Note: The descriptor_type and Type fields must appear in the identical
177  * position in both the struct acpi_namespace_node and union acpi_operand_object
178  * structures.
179  */
180 struct acpi_namespace_node {
181 	union acpi_operand_object *object;	/* Interpreter object */
182 	u8 descriptor_type;	/* Differentiate object descriptor types */
183 	u8 type;		/* ACPI Type associated with this name */
184 	u8 flags;		/* Miscellaneous flags */
185 	acpi_owner_id owner_id;	/* Node creator */
186 	union acpi_name_union name;	/* ACPI Name, always 4 chars per ACPI spec */
187 	struct acpi_namespace_node *parent;	/* Parent node */
188 	struct acpi_namespace_node *child;	/* First child */
189 	struct acpi_namespace_node *peer;	/* First peer */
190 
191 	/*
192 	 * The following fields are used by the ASL compiler and disassembler only
193 	 */
194 #ifdef ACPI_LARGE_NAMESPACE_NODE
195 	union acpi_parse_object *op;
196 	u32 value;
197 	u32 length;
198 #endif
199 };
200 
201 /* Namespace Node flags */
202 
203 #define ANOBJ_RESERVED                  0x01	/* Available for use */
204 #define ANOBJ_TEMPORARY                 0x02	/* Node is create by a method and is temporary */
205 #define ANOBJ_METHOD_ARG                0x04	/* Node is a method argument */
206 #define ANOBJ_METHOD_LOCAL              0x08	/* Node is a method local */
207 #define ANOBJ_SUBTREE_HAS_INI           0x10	/* Used to optimize device initialization */
208 #define ANOBJ_EVALUATED                 0x20	/* Set on first evaluation of node */
209 #define ANOBJ_ALLOCATED_BUFFER          0x40	/* Method AML buffer is dynamic (install_method) */
210 
211 #define ANOBJ_IS_EXTERNAL               0x08	/* i_aSL only: This object created via External() */
212 #define ANOBJ_METHOD_NO_RETVAL          0x10	/* i_aSL only: Method has no return value */
213 #define ANOBJ_METHOD_SOME_NO_RETVAL     0x20	/* i_aSL only: Method has at least one return value */
214 #define ANOBJ_IS_BIT_OFFSET             0x40	/* i_aSL only: Reference is a bit offset */
215 #define ANOBJ_IS_REFERENCED             0x80	/* i_aSL only: Object was referenced */
216 
217 /* Internal ACPI table management - master table list */
218 
219 struct acpi_table_list {
220 	struct acpi_table_desc *tables;	/* Table descriptor array */
221 	u32 current_table_count;	/* Tables currently in the array */
222 	u32 max_table_count;	/* Max tables array will hold */
223 	u8 flags;
224 };
225 
226 /* Flags for above */
227 
228 #define ACPI_ROOT_ORIGIN_UNKNOWN        (0)	/* ~ORIGIN_ALLOCATED */
229 #define ACPI_ROOT_ORIGIN_ALLOCATED      (1)
230 #define ACPI_ROOT_ALLOW_RESIZE          (2)
231 
232 /* Predefined (fixed) table indexes */
233 
234 #define ACPI_TABLE_INDEX_DSDT           (0)
235 #define ACPI_TABLE_INDEX_FACS           (1)
236 
237 struct acpi_find_context {
238 	char *search_for;
239 	acpi_handle *list;
240 	u32 *count;
241 };
242 
243 struct acpi_ns_search_data {
244 	struct acpi_namespace_node *node;
245 };
246 
247 /* Object types used during package copies */
248 
249 #define ACPI_COPY_TYPE_SIMPLE           0
250 #define ACPI_COPY_TYPE_PACKAGE          1
251 
252 /* Info structure used to convert external<->internal namestrings */
253 
254 struct acpi_namestring_info {
255 	const char *external_name;
256 	const char *next_external_char;
257 	char *internal_name;
258 	u32 length;
259 	u32 num_segments;
260 	u32 num_carats;
261 	u8 fully_qualified;
262 };
263 
264 /* Field creation info */
265 
266 struct acpi_create_field_info {
267 	struct acpi_namespace_node *region_node;
268 	struct acpi_namespace_node *field_node;
269 	struct acpi_namespace_node *register_node;
270 	struct acpi_namespace_node *data_register_node;
271 	u32 bank_value;
272 	u32 field_bit_position;
273 	u32 field_bit_length;
274 	u8 field_flags;
275 	u8 attribute;
276 	u8 field_type;
277 };
278 
279 typedef
280 acpi_status(*ACPI_INTERNAL_METHOD) (struct acpi_walk_state * walk_state);
281 
282 /*
283  * Bitmapped ACPI types.  Used internally only
284  */
285 #define ACPI_BTYPE_ANY                  0x00000000
286 #define ACPI_BTYPE_INTEGER              0x00000001
287 #define ACPI_BTYPE_STRING               0x00000002
288 #define ACPI_BTYPE_BUFFER               0x00000004
289 #define ACPI_BTYPE_PACKAGE              0x00000008
290 #define ACPI_BTYPE_FIELD_UNIT           0x00000010
291 #define ACPI_BTYPE_DEVICE               0x00000020
292 #define ACPI_BTYPE_EVENT                0x00000040
293 #define ACPI_BTYPE_METHOD               0x00000080
294 #define ACPI_BTYPE_MUTEX                0x00000100
295 #define ACPI_BTYPE_REGION               0x00000200
296 #define ACPI_BTYPE_POWER                0x00000400
297 #define ACPI_BTYPE_PROCESSOR            0x00000800
298 #define ACPI_BTYPE_THERMAL              0x00001000
299 #define ACPI_BTYPE_BUFFER_FIELD         0x00002000
300 #define ACPI_BTYPE_DDB_HANDLE           0x00004000
301 #define ACPI_BTYPE_DEBUG_OBJECT         0x00008000
302 #define ACPI_BTYPE_REFERENCE            0x00010000
303 #define ACPI_BTYPE_RESOURCE             0x00020000
304 
305 #define ACPI_BTYPE_COMPUTE_DATA         (ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER)
306 
307 #define ACPI_BTYPE_DATA                 (ACPI_BTYPE_COMPUTE_DATA  | ACPI_BTYPE_PACKAGE)
308 #define ACPI_BTYPE_DATA_REFERENCE       (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE | ACPI_BTYPE_DDB_HANDLE)
309 #define ACPI_BTYPE_DEVICE_OBJECTS       (ACPI_BTYPE_DEVICE | ACPI_BTYPE_THERMAL | ACPI_BTYPE_PROCESSOR)
310 #define ACPI_BTYPE_OBJECTS_AND_REFS     0x0001FFFF	/* ARG or LOCAL */
311 #define ACPI_BTYPE_ALL_OBJECTS          0x0000FFFF
312 
313 /*
314  * Information structure for ACPI predefined names.
315  * Each entry in the table contains the following items:
316  *
317  * Name                 - The ACPI reserved name
318  * param_count          - Number of arguments to the method
319  * expected_return_btypes - Allowed type(s) for the return value
320  */
321 struct acpi_name_info {
322 	char name[ACPI_NAME_SIZE];
323 	u8 param_count;
324 	u8 expected_btypes;
325 };
326 
327 /*
328  * Secondary information structures for ACPI predefined objects that return
329  * package objects. This structure appears as the next entry in the table
330  * after the NAME_INFO structure above.
331  *
332  * The reason for this is to minimize the size of the predefined name table.
333  */
334 
335 /*
336  * Used for ACPI_PTYPE1_FIXED, ACPI_PTYPE1_VAR, ACPI_PTYPE2,
337  * ACPI_PTYPE2_MIN, ACPI_PTYPE2_PKG_COUNT, ACPI_PTYPE2_COUNT
338  */
339 struct acpi_package_info {
340 	u8 type;
341 	u8 object_type1;
342 	u8 count1;
343 	u8 object_type2;
344 	u8 count2;
345 	u8 reserved;
346 };
347 
348 /* Used for ACPI_PTYPE2_FIXED */
349 
350 struct acpi_package_info2 {
351 	u8 type;
352 	u8 count;
353 	u8 object_type[4];
354 };
355 
356 /* Used for ACPI_PTYPE1_OPTION */
357 
358 struct acpi_package_info3 {
359 	u8 type;
360 	u8 count;
361 	u8 object_type[2];
362 	u8 tail_object_type;
363 	u8 reserved;
364 };
365 
366 union acpi_predefined_info {
367 	struct acpi_name_info info;
368 	struct acpi_package_info ret_info;
369 	struct acpi_package_info2 ret_info2;
370 	struct acpi_package_info3 ret_info3;
371 };
372 
373 /* Data block used during object validation */
374 
375 struct acpi_predefined_data {
376 	char *pathname;
377 	const union acpi_predefined_info *predefined;
378 	union acpi_operand_object *parent_package;
379 	u32 flags;
380 	u8 node_flags;
381 };
382 
383 /* Defines for Flags field above */
384 
385 #define ACPI_OBJECT_REPAIRED    1
386 
387 /*
388  * Bitmapped return value types
389  * Note: the actual data types must be contiguous, a loop in nspredef.c
390  * depends on this.
391  */
392 #define ACPI_RTYPE_ANY                  0x00
393 #define ACPI_RTYPE_NONE                 0x01
394 #define ACPI_RTYPE_INTEGER              0x02
395 #define ACPI_RTYPE_STRING               0x04
396 #define ACPI_RTYPE_BUFFER               0x08
397 #define ACPI_RTYPE_PACKAGE              0x10
398 #define ACPI_RTYPE_REFERENCE            0x20
399 #define ACPI_RTYPE_ALL                  0x3F
400 
401 #define ACPI_NUM_RTYPES                 5	/* Number of actual object types */
402 
403 /*****************************************************************************
404  *
405  * Event typedefs and structs
406  *
407  ****************************************************************************/
408 
409 /* Dispatch info for each GPE -- either a method or handler, cannot be both */
410 
411 struct acpi_handler_info {
412 	acpi_event_handler address;	/* Address of handler, if any */
413 	void *context;		/* Context to be passed to handler */
414 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level (saved) */
415 	u8 orig_flags;		/* Original misc info about this GPE */
416 };
417 
418 union acpi_gpe_dispatch_info {
419 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level */
420 	struct acpi_handler_info *handler;
421 };
422 
423 /*
424  * Information about a GPE, one per each GPE in an array.
425  * NOTE: Important to keep this struct as small as possible.
426  */
427 struct acpi_gpe_event_info {
428 	union acpi_gpe_dispatch_info dispatch;	/* Either Method or Handler */
429 	struct acpi_gpe_register_info *register_info;	/* Backpointer to register info */
430 	u8 flags;		/* Misc info about this GPE */
431 	u8 gpe_number;		/* This GPE */
432 	u8 runtime_count;	/* References to a run GPE */
433 };
434 
435 /* Information about a GPE register pair, one per each status/enable pair in an array */
436 
437 struct acpi_gpe_register_info {
438 	struct acpi_generic_address status_address;	/* Address of status reg */
439 	struct acpi_generic_address enable_address;	/* Address of enable reg */
440 	u8 enable_for_wake;	/* GPEs to keep enabled when sleeping */
441 	u8 enable_for_run;	/* GPEs to keep enabled when running */
442 	u8 base_gpe_number;	/* Base GPE number for this register */
443 };
444 
445 /*
446  * Information about a GPE register block, one per each installed block --
447  * GPE0, GPE1, and one per each installed GPE Block Device.
448  */
449 struct acpi_gpe_block_info {
450 	struct acpi_namespace_node *node;
451 	struct acpi_gpe_block_info *previous;
452 	struct acpi_gpe_block_info *next;
453 	struct acpi_gpe_xrupt_info *xrupt_block;	/* Backpointer to interrupt block */
454 	struct acpi_gpe_register_info *register_info;	/* One per GPE register pair */
455 	struct acpi_gpe_event_info *event_info;	/* One for each GPE */
456 	struct acpi_generic_address block_address;	/* Base address of the block */
457 	u32 register_count;	/* Number of register pairs in block */
458 	u16 gpe_count;		/* Number of individual GPEs in block */
459 	u8 block_base_number;	/* Base GPE number for this block */
460 };
461 
462 /* Information about GPE interrupt handlers, one per each interrupt level used for GPEs */
463 
464 struct acpi_gpe_xrupt_info {
465 	struct acpi_gpe_xrupt_info *previous;
466 	struct acpi_gpe_xrupt_info *next;
467 	struct acpi_gpe_block_info *gpe_block_list_head;	/* List of GPE blocks for this xrupt */
468 	u32 interrupt_number;	/* System interrupt number */
469 };
470 
471 struct acpi_gpe_walk_info {
472 	struct acpi_namespace_node *gpe_device;
473 	struct acpi_gpe_block_info *gpe_block;
474 	u16 count;
475 	acpi_owner_id owner_id;
476 	u8 enable_this_gpe;
477 	u8 execute_by_owner_id;
478 };
479 
480 struct acpi_gpe_device_info {
481 	u32 index;
482 	u32 next_block_base_index;
483 	acpi_status status;
484 	struct acpi_namespace_node *gpe_device;
485 };
486 
487 typedef acpi_status(*acpi_gpe_callback) (struct acpi_gpe_xrupt_info *gpe_xrupt_info,
488 		struct acpi_gpe_block_info *gpe_block, void *context);
489 
490 /* Information about each particular fixed event */
491 
492 struct acpi_fixed_event_handler {
493 	acpi_event_handler handler;	/* Address of handler. */
494 	void *context;		/* Context to be passed to handler */
495 };
496 
497 struct acpi_fixed_event_info {
498 	u8 status_register_id;
499 	u8 enable_register_id;
500 	u16 status_bit_mask;
501 	u16 enable_bit_mask;
502 };
503 
504 /* Information used during field processing */
505 
506 struct acpi_field_info {
507 	u8 skip_field;
508 	u8 field_flag;
509 	u32 pkg_length;
510 };
511 
512 /*****************************************************************************
513  *
514  * Generic "state" object for stacks
515  *
516  ****************************************************************************/
517 
518 #define ACPI_CONTROL_NORMAL                  0xC0
519 #define ACPI_CONTROL_CONDITIONAL_EXECUTING   0xC1
520 #define ACPI_CONTROL_PREDICATE_EXECUTING     0xC2
521 #define ACPI_CONTROL_PREDICATE_FALSE         0xC3
522 #define ACPI_CONTROL_PREDICATE_TRUE          0xC4
523 
524 #define ACPI_STATE_COMMON \
525 	void                            *next; \
526 	u8                              descriptor_type; /* To differentiate various internal objs */\
527 	u8                              flags; \
528 	u16                             value; \
529 	u16                             state;
530 
531 	/* There are 2 bytes available here until the next natural alignment boundary */
532 
533 struct acpi_common_state {
534 ACPI_STATE_COMMON};
535 
536 /*
537  * Update state - used to traverse complex objects such as packages
538  */
539 struct acpi_update_state {
540 	ACPI_STATE_COMMON union acpi_operand_object *object;
541 };
542 
543 /*
544  * Pkg state - used to traverse nested package structures
545  */
546 struct acpi_pkg_state {
547 	ACPI_STATE_COMMON u16 index;
548 	union acpi_operand_object *source_object;
549 	union acpi_operand_object *dest_object;
550 	struct acpi_walk_state *walk_state;
551 	void *this_target_obj;
552 	u32 num_packages;
553 };
554 
555 /*
556  * Control state - one per if/else and while constructs.
557  * Allows nesting of these constructs
558  */
559 struct acpi_control_state {
560 	ACPI_STATE_COMMON u16 opcode;
561 	union acpi_parse_object *predicate_op;
562 	u8 *aml_predicate_start;	/* Start of if/while predicate */
563 	u8 *package_end;	/* End of if/while block */
564 	u32 loop_count;		/* While() loop counter */
565 };
566 
567 /*
568  * Scope state - current scope during namespace lookups
569  */
570 struct acpi_scope_state {
571 	ACPI_STATE_COMMON struct acpi_namespace_node *node;
572 };
573 
574 struct acpi_pscope_state {
575 	ACPI_STATE_COMMON u32 arg_count;	/* Number of fixed arguments */
576 	union acpi_parse_object *op;	/* Current op being parsed */
577 	u8 *arg_end;		/* Current argument end */
578 	u8 *pkg_end;		/* Current package end */
579 	u32 arg_list;		/* Next argument to parse */
580 };
581 
582 /*
583  * Thread state - one per thread across multiple walk states.  Multiple walk
584  * states are created when there are nested control methods executing.
585  */
586 struct acpi_thread_state {
587 	ACPI_STATE_COMMON u8 current_sync_level;	/* Mutex Sync (nested acquire) level */
588 	struct acpi_walk_state *walk_state_list;	/* Head of list of walk_states for this thread */
589 	union acpi_operand_object *acquired_mutex_list;	/* List of all currently acquired mutexes */
590 	acpi_thread_id thread_id;	/* Running thread ID */
591 };
592 
593 /*
594  * Result values - used to accumulate the results of nested
595  * AML arguments
596  */
597 struct acpi_result_values {
598 	ACPI_STATE_COMMON
599 	    union acpi_operand_object *obj_desc[ACPI_RESULTS_FRAME_OBJ_NUM];
600 };
601 
602 typedef
603 acpi_status(*acpi_parse_downwards) (struct acpi_walk_state * walk_state,
604 				    union acpi_parse_object ** out_op);
605 
606 typedef acpi_status(*acpi_parse_upwards) (struct acpi_walk_state * walk_state);
607 
608 /*
609  * Notify info - used to pass info to the deferred notify
610  * handler/dispatcher.
611  */
612 struct acpi_notify_info {
613 	ACPI_STATE_COMMON struct acpi_namespace_node *node;
614 	union acpi_operand_object *handler_obj;
615 };
616 
617 /* Generic state is union of structs above */
618 
619 union acpi_generic_state {
620 	struct acpi_common_state common;
621 	struct acpi_control_state control;
622 	struct acpi_update_state update;
623 	struct acpi_scope_state scope;
624 	struct acpi_pscope_state parse_scope;
625 	struct acpi_pkg_state pkg;
626 	struct acpi_thread_state thread;
627 	struct acpi_result_values results;
628 	struct acpi_notify_info notify;
629 };
630 
631 /*****************************************************************************
632  *
633  * Interpreter typedefs and structs
634  *
635  ****************************************************************************/
636 
637 typedef acpi_status(*ACPI_EXECUTE_OP) (struct acpi_walk_state * walk_state);
638 
639 /*****************************************************************************
640  *
641  * Parser typedefs and structs
642  *
643  ****************************************************************************/
644 
645 /*
646  * AML opcode, name, and argument layout
647  */
648 struct acpi_opcode_info {
649 #if defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUG_OUTPUT)
650 	char *name;		/* Opcode name (disassembler/debug only) */
651 #endif
652 	u32 parse_args;		/* Grammar/Parse time arguments */
653 	u32 runtime_args;	/* Interpret time arguments */
654 	u16 flags;		/* Misc flags */
655 	u8 object_type;		/* Corresponding internal object type */
656 	u8 class;		/* Opcode class */
657 	u8 type;		/* Opcode type */
658 };
659 
660 union acpi_parse_value {
661 	u64 integer;		/* Integer constant (Up to 64 bits) */
662 	u32 size;		/* bytelist or field size */
663 	char *string;		/* NULL terminated string */
664 	u8 *buffer;		/* buffer or string */
665 	char *name;		/* NULL terminated string */
666 	union acpi_parse_object *arg;	/* arguments and contained ops */
667 };
668 
669 #ifdef ACPI_DISASSEMBLER
670 #define ACPI_DISASM_ONLY_MEMBERS(a)     a;
671 #else
672 #define ACPI_DISASM_ONLY_MEMBERS(a)
673 #endif
674 
675 #define ACPI_PARSE_COMMON \
676 	union acpi_parse_object         *parent;        /* Parent op */\
677 	u8                              descriptor_type; /* To differentiate various internal objs */\
678 	u8                              flags;          /* Type of Op */\
679 	u16                             aml_opcode;     /* AML opcode */\
680 	u32                             aml_offset;     /* Offset of declaration in AML */\
681 	union acpi_parse_object         *next;          /* Next op */\
682 	struct acpi_namespace_node      *node;          /* For use by interpreter */\
683 	union acpi_parse_value          value;          /* Value or args associated with the opcode */\
684 	u8                              arg_list_length; /* Number of elements in the arg list */\
685 	ACPI_DISASM_ONLY_MEMBERS (\
686 	u8                              disasm_flags;   /* Used during AML disassembly */\
687 	u8                              disasm_opcode;  /* Subtype used for disassembly */\
688 	char                            aml_op_name[16])	/* Op name (debug only) */
689 
690 #define ACPI_DASM_BUFFER                0x00
691 #define ACPI_DASM_RESOURCE              0x01
692 #define ACPI_DASM_STRING                0x02
693 #define ACPI_DASM_UNICODE               0x03
694 #define ACPI_DASM_EISAID                0x04
695 #define ACPI_DASM_MATCHOP               0x05
696 #define ACPI_DASM_LNOT_PREFIX           0x06
697 #define ACPI_DASM_LNOT_SUFFIX           0x07
698 #define ACPI_DASM_IGNORE                0x08
699 
700 /*
701  * Generic operation (for example:  If, While, Store)
702  */
703 struct acpi_parse_obj_common {
704 ACPI_PARSE_COMMON};
705 
706 /*
707  * Extended Op for named ops (Scope, Method, etc.), deferred ops (Methods and op_regions),
708  * and bytelists.
709  */
710 struct acpi_parse_obj_named {
711 	ACPI_PARSE_COMMON u8 *path;
712 	u8 *data;		/* AML body or bytelist data */
713 	u32 length;		/* AML length */
714 	u32 name;		/* 4-byte name or zero if no name */
715 };
716 
717 /* This version is used by the i_aSL compiler only */
718 
719 #define ACPI_MAX_PARSEOP_NAME   20
720 
721 struct acpi_parse_obj_asl {
722 	ACPI_PARSE_COMMON union acpi_parse_object *child;
723 	union acpi_parse_object *parent_method;
724 	char *filename;
725 	char *external_name;
726 	char *namepath;
727 	char name_seg[4];
728 	u32 extra_value;
729 	u32 column;
730 	u32 line_number;
731 	u32 logical_line_number;
732 	u32 logical_byte_offset;
733 	u32 end_line;
734 	u32 end_logical_line;
735 	u32 acpi_btype;
736 	u32 aml_length;
737 	u32 aml_subtree_length;
738 	u32 final_aml_length;
739 	u32 final_aml_offset;
740 	u32 compile_flags;
741 	u16 parse_opcode;
742 	u8 aml_opcode_length;
743 	u8 aml_pkg_len_bytes;
744 	u8 extra;
745 	char parse_op_name[ACPI_MAX_PARSEOP_NAME];
746 };
747 
748 union acpi_parse_object {
749 	struct acpi_parse_obj_common common;
750 	struct acpi_parse_obj_named named;
751 	struct acpi_parse_obj_asl asl;
752 };
753 
754 /*
755  * Parse state - one state per parser invocation and each control
756  * method.
757  */
758 struct acpi_parse_state {
759 	u8 *aml_start;		/* First AML byte */
760 	u8 *aml;		/* Next AML byte */
761 	u8 *aml_end;		/* (last + 1) AML byte */
762 	u8 *pkg_start;		/* Current package begin */
763 	u8 *pkg_end;		/* Current package end */
764 	union acpi_parse_object *start_op;	/* Root of parse tree */
765 	struct acpi_namespace_node *start_node;
766 	union acpi_generic_state *scope;	/* Current scope */
767 	union acpi_parse_object *start_scope;
768 	u32 aml_size;
769 };
770 
771 /* Parse object flags */
772 
773 #define ACPI_PARSEOP_GENERIC            0x01
774 #define ACPI_PARSEOP_NAMED              0x02
775 #define ACPI_PARSEOP_DEFERRED           0x04
776 #define ACPI_PARSEOP_BYTELIST           0x08
777 #define ACPI_PARSEOP_IN_STACK           0x10
778 #define ACPI_PARSEOP_TARGET             0x20
779 #define ACPI_PARSEOP_IN_CACHE           0x80
780 
781 /* Parse object disasm_flags */
782 
783 #define ACPI_PARSEOP_IGNORE             0x01
784 #define ACPI_PARSEOP_PARAMLIST          0x02
785 #define ACPI_PARSEOP_EMPTY_TERMLIST     0x04
786 #define ACPI_PARSEOP_SPECIAL            0x10
787 
788 /*****************************************************************************
789  *
790  * Hardware (ACPI registers) and PNP
791  *
792  ****************************************************************************/
793 
794 struct acpi_bit_register_info {
795 	u8 parent_register;
796 	u8 bit_position;
797 	u16 access_bit_mask;
798 };
799 
800 /*
801  * Some ACPI registers have bits that must be ignored -- meaning that they
802  * must be preserved.
803  */
804 #define ACPI_PM1_STATUS_PRESERVED_BITS          0x0800	/* Bit 11 */
805 
806 /* Write-only bits must be zeroed by software */
807 
808 #define ACPI_PM1_CONTROL_WRITEONLY_BITS         0x2004	/* Bits 13, 2 */
809 
810 /* For control registers, both ignored and reserved bits must be preserved */
811 
812 /*
813  * For PM1 control, the SCI enable bit (bit 0, SCI_EN) is defined by the
814  * ACPI specification to be a "preserved" bit - "OSPM always preserves this
815  * bit position", section 4.7.3.2.1. However, on some machines the OS must
816  * write a one to this bit after resume for the machine to work properly.
817  * To enable this, we no longer attempt to preserve this bit. No machines
818  * are known to fail if the bit is not preserved. (May 2009)
819  */
820 #define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200	/* Bit 9 */
821 #define ACPI_PM1_CONTROL_RESERVED_BITS          0xC1F8	/* Bits 14-15, 3-8 */
822 #define ACPI_PM1_CONTROL_PRESERVED_BITS \
823 	       (ACPI_PM1_CONTROL_IGNORED_BITS | ACPI_PM1_CONTROL_RESERVED_BITS)
824 
825 #define ACPI_PM2_CONTROL_PRESERVED_BITS         0xFFFFFFFE	/* All except bit 0 */
826 
827 /*
828  * Register IDs
829  * These are the full ACPI registers
830  */
831 #define ACPI_REGISTER_PM1_STATUS                0x01
832 #define ACPI_REGISTER_PM1_ENABLE                0x02
833 #define ACPI_REGISTER_PM1_CONTROL               0x03
834 #define ACPI_REGISTER_PM2_CONTROL               0x04
835 #define ACPI_REGISTER_PM_TIMER                  0x05
836 #define ACPI_REGISTER_PROCESSOR_BLOCK           0x06
837 #define ACPI_REGISTER_SMI_COMMAND_BLOCK         0x07
838 
839 /* Masks used to access the bit_registers */
840 
841 #define ACPI_BITMASK_TIMER_STATUS               0x0001
842 #define ACPI_BITMASK_BUS_MASTER_STATUS          0x0010
843 #define ACPI_BITMASK_GLOBAL_LOCK_STATUS         0x0020
844 #define ACPI_BITMASK_POWER_BUTTON_STATUS        0x0100
845 #define ACPI_BITMASK_SLEEP_BUTTON_STATUS        0x0200
846 #define ACPI_BITMASK_RT_CLOCK_STATUS            0x0400
847 #define ACPI_BITMASK_PCIEXP_WAKE_STATUS         0x4000	/* ACPI 3.0 */
848 #define ACPI_BITMASK_WAKE_STATUS                0x8000
849 
850 #define ACPI_BITMASK_ALL_FIXED_STATUS           (\
851 	ACPI_BITMASK_TIMER_STATUS          | \
852 	ACPI_BITMASK_BUS_MASTER_STATUS     | \
853 	ACPI_BITMASK_GLOBAL_LOCK_STATUS    | \
854 	ACPI_BITMASK_POWER_BUTTON_STATUS   | \
855 	ACPI_BITMASK_SLEEP_BUTTON_STATUS   | \
856 	ACPI_BITMASK_RT_CLOCK_STATUS       | \
857 	ACPI_BITMASK_WAKE_STATUS)
858 
859 #define ACPI_BITMASK_TIMER_ENABLE               0x0001
860 #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE         0x0020
861 #define ACPI_BITMASK_POWER_BUTTON_ENABLE        0x0100
862 #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE        0x0200
863 #define ACPI_BITMASK_RT_CLOCK_ENABLE            0x0400
864 #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE        0x4000	/* ACPI 3.0 */
865 
866 #define ACPI_BITMASK_SCI_ENABLE                 0x0001
867 #define ACPI_BITMASK_BUS_MASTER_RLD             0x0002
868 #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE        0x0004
869 #define ACPI_BITMASK_SLEEP_TYPE                 0x1C00
870 #define ACPI_BITMASK_SLEEP_ENABLE               0x2000
871 
872 #define ACPI_BITMASK_ARB_DISABLE                0x0001
873 
874 /* Raw bit position of each bit_register */
875 
876 #define ACPI_BITPOSITION_TIMER_STATUS           0x00
877 #define ACPI_BITPOSITION_BUS_MASTER_STATUS      0x04
878 #define ACPI_BITPOSITION_GLOBAL_LOCK_STATUS     0x05
879 #define ACPI_BITPOSITION_POWER_BUTTON_STATUS    0x08
880 #define ACPI_BITPOSITION_SLEEP_BUTTON_STATUS    0x09
881 #define ACPI_BITPOSITION_RT_CLOCK_STATUS        0x0A
882 #define ACPI_BITPOSITION_PCIEXP_WAKE_STATUS     0x0E	/* ACPI 3.0 */
883 #define ACPI_BITPOSITION_WAKE_STATUS            0x0F
884 
885 #define ACPI_BITPOSITION_TIMER_ENABLE           0x00
886 #define ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE     0x05
887 #define ACPI_BITPOSITION_POWER_BUTTON_ENABLE    0x08
888 #define ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE    0x09
889 #define ACPI_BITPOSITION_RT_CLOCK_ENABLE        0x0A
890 #define ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE    0x0E	/* ACPI 3.0 */
891 
892 #define ACPI_BITPOSITION_SCI_ENABLE             0x00
893 #define ACPI_BITPOSITION_BUS_MASTER_RLD         0x01
894 #define ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE    0x02
895 #define ACPI_BITPOSITION_SLEEP_TYPE             0x0A
896 #define ACPI_BITPOSITION_SLEEP_ENABLE           0x0D
897 
898 #define ACPI_BITPOSITION_ARB_DISABLE            0x00
899 
900 /* Structs and definitions for _OSI support and I/O port validation */
901 
902 #define ACPI_OSI_WIN_2000               0x01
903 #define ACPI_OSI_WIN_XP                 0x02
904 #define ACPI_OSI_WIN_XP_SP1             0x03
905 #define ACPI_OSI_WINSRV_2003            0x04
906 #define ACPI_OSI_WIN_XP_SP2             0x05
907 #define ACPI_OSI_WINSRV_2003_SP1        0x06
908 #define ACPI_OSI_WIN_VISTA              0x07
909 #define ACPI_OSI_WINSRV_2008            0x08
910 #define ACPI_OSI_WIN_VISTA_SP1          0x09
911 #define ACPI_OSI_WIN_7                  0x0A
912 
913 #define ACPI_ALWAYS_ILLEGAL             0x00
914 
915 struct acpi_interface_info {
916 	char *name;
917 	u8 value;
918 };
919 
920 struct acpi_port_info {
921 	char *name;
922 	u16 start;
923 	u16 end;
924 	u8 osi_dependency;
925 };
926 
927 /*****************************************************************************
928  *
929  * Resource descriptors
930  *
931  ****************************************************************************/
932 
933 /* resource_type values */
934 
935 #define ACPI_ADDRESS_TYPE_MEMORY_RANGE          0
936 #define ACPI_ADDRESS_TYPE_IO_RANGE              1
937 #define ACPI_ADDRESS_TYPE_BUS_NUMBER_RANGE      2
938 
939 /* Resource descriptor types and masks */
940 
941 #define ACPI_RESOURCE_NAME_LARGE                0x80
942 #define ACPI_RESOURCE_NAME_SMALL                0x00
943 
944 #define ACPI_RESOURCE_NAME_SMALL_MASK           0x78	/* Bits 6:3 contain the type */
945 #define ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK    0x07	/* Bits 2:0 contain the length */
946 #define ACPI_RESOURCE_NAME_LARGE_MASK           0x7F	/* Bits 6:0 contain the type */
947 
948 /*
949  * Small resource descriptor "names" as defined by the ACPI specification.
950  * Note: Bits 2:0 are used for the descriptor length
951  */
952 #define ACPI_RESOURCE_NAME_IRQ                  0x20
953 #define ACPI_RESOURCE_NAME_DMA                  0x28
954 #define ACPI_RESOURCE_NAME_START_DEPENDENT      0x30
955 #define ACPI_RESOURCE_NAME_END_DEPENDENT        0x38
956 #define ACPI_RESOURCE_NAME_IO                   0x40
957 #define ACPI_RESOURCE_NAME_FIXED_IO             0x48
958 #define ACPI_RESOURCE_NAME_RESERVED_S1          0x50
959 #define ACPI_RESOURCE_NAME_RESERVED_S2          0x58
960 #define ACPI_RESOURCE_NAME_RESERVED_S3          0x60
961 #define ACPI_RESOURCE_NAME_RESERVED_S4          0x68
962 #define ACPI_RESOURCE_NAME_VENDOR_SMALL         0x70
963 #define ACPI_RESOURCE_NAME_END_TAG              0x78
964 
965 /*
966  * Large resource descriptor "names" as defined by the ACPI specification.
967  * Note: includes the Large Descriptor bit in bit[7]
968  */
969 #define ACPI_RESOURCE_NAME_MEMORY24             0x81
970 #define ACPI_RESOURCE_NAME_GENERIC_REGISTER     0x82
971 #define ACPI_RESOURCE_NAME_RESERVED_L1          0x83
972 #define ACPI_RESOURCE_NAME_VENDOR_LARGE         0x84
973 #define ACPI_RESOURCE_NAME_MEMORY32             0x85
974 #define ACPI_RESOURCE_NAME_FIXED_MEMORY32       0x86
975 #define ACPI_RESOURCE_NAME_ADDRESS32            0x87
976 #define ACPI_RESOURCE_NAME_ADDRESS16            0x88
977 #define ACPI_RESOURCE_NAME_EXTENDED_IRQ         0x89
978 #define ACPI_RESOURCE_NAME_ADDRESS64            0x8A
979 #define ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64   0x8B
980 #define ACPI_RESOURCE_NAME_LARGE_MAX            0x8B
981 
982 /*****************************************************************************
983  *
984  * Miscellaneous
985  *
986  ****************************************************************************/
987 
988 #define ACPI_ASCII_ZERO                 0x30
989 
990 /*****************************************************************************
991  *
992  * Debugger
993  *
994  ****************************************************************************/
995 
996 struct acpi_db_method_info {
997 	acpi_handle main_thread_gate;
998 	acpi_handle thread_complete_gate;
999 	u32 *threads;
1000 	u32 num_threads;
1001 	u32 num_created;
1002 	u32 num_completed;
1003 
1004 	char *name;
1005 	u32 flags;
1006 	u32 num_loops;
1007 	char pathname[128];
1008 	char **args;
1009 
1010 	/*
1011 	 * Arguments to be passed to method for the command
1012 	 * Threads -
1013 	 *   the Number of threads, ID of current thread and
1014 	 *   Index of current thread inside all them created.
1015 	 */
1016 	char init_args;
1017 	char *arguments[4];
1018 	char num_threads_str[11];
1019 	char id_of_thread_str[11];
1020 	char index_of_thread_str[11];
1021 };
1022 
1023 struct acpi_integrity_info {
1024 	u32 nodes;
1025 	u32 objects;
1026 };
1027 
1028 #define ACPI_DB_REDIRECTABLE_OUTPUT     0x01
1029 #define ACPI_DB_CONSOLE_OUTPUT          0x02
1030 #define ACPI_DB_DUPLICATE_OUTPUT        0x03
1031 
1032 /*****************************************************************************
1033  *
1034  * Debug
1035  *
1036  ****************************************************************************/
1037 
1038 /* Entry for a memory allocation (debug only) */
1039 
1040 #define ACPI_MEM_MALLOC                 0
1041 #define ACPI_MEM_CALLOC                 1
1042 #define ACPI_MAX_MODULE_NAME            16
1043 
1044 #define ACPI_COMMON_DEBUG_MEM_HEADER \
1045 	struct acpi_debug_mem_block     *previous; \
1046 	struct acpi_debug_mem_block     *next; \
1047 	u32                             size; \
1048 	u32                             component; \
1049 	u32                             line; \
1050 	char                            module[ACPI_MAX_MODULE_NAME]; \
1051 	u8                              alloc_type;
1052 
1053 struct acpi_debug_mem_header {
1054 ACPI_COMMON_DEBUG_MEM_HEADER};
1055 
1056 struct acpi_debug_mem_block {
1057 	ACPI_COMMON_DEBUG_MEM_HEADER u64 user_space;
1058 };
1059 
1060 #define ACPI_MEM_LIST_GLOBAL            0
1061 #define ACPI_MEM_LIST_NSNODE            1
1062 #define ACPI_MEM_LIST_MAX               1
1063 #define ACPI_NUM_MEM_LISTS              2
1064 
1065 #endif				/* __ACLOCAL_H__ */
1066