xref: /linux/include/acpi/acpixf.h (revision 2b5f6638204cc0e0f6ecd55b963ebb895ec61f3b)
1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: acpixf.h - External interfaces to the ACPI subsystem
5  *
6  * Copyright (C) 2000 - 2025, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef __ACXFACE_H__
11 #define __ACXFACE_H__
12 
13 /* Current ACPICA subsystem version in YYYYMMDD format */
14 
15 #define ACPI_CA_VERSION                 0x20250807
16 
17 #include <acpi/acconfig.h>
18 #include <acpi/actypes.h>
19 #include <acpi/actbl.h>
20 #include <acpi/acbuffer.h>
21 
22 /*****************************************************************************
23  *
24  * Macros used for ACPICA globals and configuration
25  *
26  ****************************************************************************/
27 
28 /*
29  * Ensure that global variables are defined and initialized only once.
30  *
31  * The use of these macros allows for a single list of globals (here)
32  * in order to simplify maintenance of the code.
33  */
34 #ifdef DEFINE_ACPI_GLOBALS
35 #define ACPI_GLOBAL(type,name) \
36 	extern type name; \
37 	type name
38 
39 #define ACPI_INIT_GLOBAL(type,name,value) \
40 	type name=value
41 
42 #else
43 #ifndef ACPI_GLOBAL
44 #define ACPI_GLOBAL(type,name) \
45 	extern type name
46 #endif
47 
48 #ifndef ACPI_INIT_GLOBAL
49 #define ACPI_INIT_GLOBAL(type,name,value) \
50 	extern type name
51 #endif
52 #endif
53 
54 /*
55  * These macros configure the various ACPICA interfaces. They are
56  * useful for generating stub inline functions for features that are
57  * configured out of the current kernel or ACPICA application.
58  */
59 #ifndef ACPI_EXTERNAL_RETURN_STATUS
60 #define ACPI_EXTERNAL_RETURN_STATUS(prototype) \
61 	prototype;
62 #endif
63 
64 #ifndef ACPI_EXTERNAL_RETURN_OK
65 #define ACPI_EXTERNAL_RETURN_OK(prototype) \
66 	prototype;
67 #endif
68 
69 #ifndef ACPI_EXTERNAL_RETURN_VOID
70 #define ACPI_EXTERNAL_RETURN_VOID(prototype) \
71 	prototype;
72 #endif
73 
74 #ifndef ACPI_EXTERNAL_RETURN_UINT32
75 #define ACPI_EXTERNAL_RETURN_UINT32(prototype) \
76 	prototype;
77 #endif
78 
79 #ifndef ACPI_EXTERNAL_RETURN_PTR
80 #define ACPI_EXTERNAL_RETURN_PTR(prototype) \
81 	prototype;
82 #endif
83 
84 /*****************************************************************************
85  *
86  * Public globals and runtime configuration options
87  *
88  ****************************************************************************/
89 
90 /*
91  * Enable "slack mode" of the AML interpreter?  Default is FALSE, and the
92  * interpreter strictly follows the ACPI specification. Setting to TRUE
93  * allows the interpreter to ignore certain errors and/or bad AML constructs.
94  *
95  * Currently, these features are enabled by this flag:
96  *
97  * 1) Allow "implicit return" of last value in a control method
98  * 2) Allow access beyond the end of an operation region
99  * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
100  * 4) Allow ANY object type to be a source operand for the Store() operator
101  * 5) Allow unresolved references (invalid target name) in package objects
102  * 6) Enable warning messages for behavior that is not ACPI spec compliant
103  */
104 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_interpreter_slack, FALSE);
105 
106 /*
107  * Automatically serialize all methods that create named objects? Default
108  * is TRUE, meaning that all non_serialized methods are scanned once at
109  * table load time to determine those that create named objects. Methods
110  * that create named objects are marked Serialized in order to prevent
111  * possible run-time problems if they are entered by more than one thread.
112  */
113 ACPI_INIT_GLOBAL(u8, acpi_gbl_auto_serialize_methods, TRUE);
114 
115 /*
116  * Create the predefined _OSI method in the namespace? Default is TRUE
117  * because ACPICA is fully compatible with other ACPI implementations.
118  * Changing this will revert ACPICA (and machine ASL) to pre-OSI behavior.
119  */
120 ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
121 
122 /*
123  * Optionally use default values for the ACPI register widths. Set this to
124  * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
125  */
126 ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
127 
128 /*
129  * Whether or not to validate (map) an entire table to verify
130  * checksum/duplication in early stage before install. Set this to TRUE to
131  * allow early table validation before install it to the table manager.
132  * Note that enabling this option causes errors to happen in some OSPMs
133  * during early initialization stages. Default behavior is to allow such
134  * validation.
135  */
136 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_table_validation, TRUE);
137 
138 /*
139  * Optionally enable output from the AML Debug Object.
140  */
141 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_aml_debug_object, FALSE);
142 
143 /*
144  * Optionally copy the entire DSDT to local memory (instead of simply
145  * mapping it.) There are some BIOSs that corrupt or replace the original
146  * DSDT, creating the need for this option. Default is FALSE, do not copy
147  * the DSDT.
148  */
149 ACPI_INIT_GLOBAL(u8, acpi_gbl_copy_dsdt_locally, FALSE);
150 
151 /*
152  * Optionally ignore an XSDT if present and use the RSDT instead.
153  * Although the ACPI specification requires that an XSDT be used instead
154  * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
155  * some machines. Default behavior is to use the XSDT if present.
156  */
157 ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
158 
159 /*
160  * Optionally use 32-bit FADT addresses if and when there is a conflict
161  * (address mismatch) between the 32-bit and 64-bit versions of the
162  * address. Although ACPICA adheres to the ACPI specification which
163  * requires the use of the corresponding 64-bit address if it is non-zero,
164  * some machines have been found to have a corrupted non-zero 64-bit
165  * address. Default is FALSE, do not favor the 32-bit addresses.
166  */
167 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
168 
169 /*
170  * Optionally use 32-bit FACS table addresses.
171  * It is reported that some platforms fail to resume from system suspending
172  * if 64-bit FACS table address is selected:
173  * https://bugzilla.kernel.org/show_bug.cgi?id=74021
174  * Default is TRUE, favor the 32-bit addresses.
175  */
176 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_facs_addresses, TRUE);
177 
178 /*
179  * Optionally truncate I/O addresses to 16 bits. Provides compatibility
180  * with other ACPI implementations. NOTE: During ACPICA initialization,
181  * this value is set to TRUE if any Windows OSI strings have been
182  * requested by the BIOS.
183  */
184 ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
185 
186 /*
187  * Disable runtime checking and repair of values returned by control methods.
188  * Use only if the repair is causing a problem on a particular machine.
189  */
190 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
191 
192 /*
193  * Optionally do not install any SSDTs from the RSDT/XSDT during initialization.
194  * This can be useful for debugging ACPI problems on some machines.
195  */
196 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_install, FALSE);
197 
198 /*
199  * Optionally enable runtime namespace override.
200  */
201 ACPI_INIT_GLOBAL(u8, acpi_gbl_runtime_namespace_override, TRUE);
202 
203 /*
204  * We keep track of the latest version of Windows that has been requested by
205  * the BIOS. ACPI 5.0.
206  */
207 ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
208 
209 /*
210  * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
211  * that the ACPI hardware is no longer required. A flag in the FADT indicates
212  * a reduced HW machine, and that flag is duplicated here for convenience.
213  */
214 ACPI_INIT_GLOBAL(u8, acpi_gbl_reduced_hardware, FALSE);
215 
216 /*
217  * ACPI Global Lock is mainly used for systems with SMM, so no-SMM systems
218  * (such as loong_arch) may not have and not use Global Lock.
219  */
220 ACPI_INIT_GLOBAL(u8, acpi_gbl_use_global_lock, TRUE);
221 
222 /*
223  * Maximum timeout for While() loop iterations before forced method abort.
224  * This mechanism is intended to prevent infinite loops during interpreter
225  * execution within a host kernel.
226  */
227 ACPI_INIT_GLOBAL(u32, acpi_gbl_max_loop_iterations, ACPI_MAX_LOOP_TIMEOUT);
228 
229 /*
230  * Optionally ignore AE_NOT_FOUND errors from named reference package elements
231  * during DSDT/SSDT table loading. This reduces error "noise" in platforms
232  * whose firmware is carrying around a bunch of unused package objects that
233  * refer to non-existent named objects. However, If the AML actually tries to
234  * use such a package, the unresolved element(s) will be replaced with NULL
235  * elements.
236  */
237 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_package_resolution_errors, FALSE);
238 
239 /*
240  * This mechanism is used to trace a specified AML method. The method is
241  * traced each time it is executed.
242  */
243 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_flags, 0);
244 ACPI_INIT_GLOBAL(const char *, acpi_gbl_trace_method_name, NULL);
245 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_level, ACPI_TRACE_LEVEL_DEFAULT);
246 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_layer, ACPI_TRACE_LAYER_DEFAULT);
247 
248 /*
249  * Runtime configuration of debug output control masks. We want the debug
250  * switches statically initialized so they are already set when the debugger
251  * is entered.
252  */
253 ACPI_INIT_GLOBAL(u32, acpi_dbg_level, ACPI_DEBUG_DEFAULT);
254 ACPI_INIT_GLOBAL(u32, acpi_dbg_layer, 0);
255 
256 /* Optionally enable timer output with Debug Object output */
257 
258 ACPI_INIT_GLOBAL(u8, acpi_gbl_display_debug_timer, FALSE);
259 
260 /*
261  * Debugger command handshake globals. Host OSes need to access these
262  * variables to implement their own command handshake mechanism.
263  */
264 #ifdef ACPI_DEBUGGER
265 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
266 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
267 #endif
268 
269 /*
270  * Other miscellaneous globals
271  */
272 ACPI_GLOBAL(struct acpi_table_fadt, acpi_gbl_FADT);
273 ACPI_GLOBAL(u32, acpi_current_gpe_count);
274 ACPI_GLOBAL(u8, acpi_gbl_system_awake_and_running);
275 
276 /*****************************************************************************
277  *
278  * ACPICA public interface configuration.
279  *
280  * Interfaces that are configured out of the ACPICA build are replaced
281  * by inlined stubs by default.
282  *
283  ****************************************************************************/
284 
285 /*
286  * Hardware-reduced prototypes (default: Not hardware reduced).
287  *
288  * All ACPICA hardware-related interfaces that use these macros will be
289  * configured out of the ACPICA build if the ACPI_REDUCED_HARDWARE flag
290  * is set to TRUE.
291  *
292  * Note: This static build option for reduced hardware is intended to
293  * reduce ACPICA code size if desired or necessary. However, even if this
294  * option is not specified, the runtime behavior of ACPICA is dependent
295  * on the actual FADT reduced hardware flag (HW_REDUCED_ACPI). If set,
296  * the flag will enable similar behavior -- ACPICA will not attempt
297  * to access any ACPI-relate hardware (SCI, GPEs, Fixed Events, etc.)
298  */
299 #if (!ACPI_REDUCED_HARDWARE)
300 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
301 	ACPI_EXTERNAL_RETURN_STATUS(prototype)
302 
303 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
304 	ACPI_EXTERNAL_RETURN_OK(prototype)
305 
306 #define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
307 	ACPI_EXTERNAL_RETURN_UINT32(prototype)
308 
309 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
310 	ACPI_EXTERNAL_RETURN_VOID(prototype)
311 
312 #else
313 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
314 	static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
315 
316 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
317 	static ACPI_INLINE prototype {return(AE_OK);}
318 
319 #define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
320 	static ACPI_INLINE prototype {return(0);}
321 
322 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
323 	static ACPI_INLINE prototype {return;}
324 
325 #endif				/* !ACPI_REDUCED_HARDWARE */
326 
327 /*
328  * Error message prototypes (default: error messages enabled).
329  *
330  * All interfaces related to error and warning messages
331  * will be configured out of the ACPICA build if the
332  * ACPI_NO_ERROR_MESSAGE flag is defined.
333  */
334 #ifndef ACPI_NO_ERROR_MESSAGES
335 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
336 	prototype;
337 
338 #else
339 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
340 	static ACPI_INLINE prototype {return;}
341 
342 #endif				/* ACPI_NO_ERROR_MESSAGES */
343 
344 /*
345  * Debugging output prototypes (default: no debug output).
346  *
347  * All interfaces related to debug output messages
348  * will be configured out of the ACPICA build unless the
349  * ACPI_DEBUG_OUTPUT flag is defined.
350  */
351 #ifdef ACPI_DEBUG_OUTPUT
352 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
353 	prototype;
354 
355 #else
356 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
357 	static ACPI_INLINE prototype {return;}
358 
359 #endif				/* ACPI_DEBUG_OUTPUT */
360 
361 /*
362  * Application prototypes
363  *
364  * All interfaces used by application will be configured
365  * out of the ACPICA build unless the ACPI_APPLICATION
366  * flag is defined.
367  */
368 #ifdef ACPI_APPLICATION
369 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
370 	prototype;
371 
372 #else
373 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
374 	static ACPI_INLINE prototype {return;}
375 
376 #endif				/* ACPI_APPLICATION */
377 
378 /*
379  * Debugger prototypes
380  *
381  * All interfaces used by debugger will be configured
382  * out of the ACPICA build unless the ACPI_DEBUGGER
383  * flag is defined.
384  */
385 #ifdef ACPI_DEBUGGER
386 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
387 	ACPI_EXTERNAL_RETURN_OK(prototype)
388 
389 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
390 	ACPI_EXTERNAL_RETURN_VOID(prototype)
391 
392 #else
393 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
394 	static ACPI_INLINE prototype {return(AE_OK);}
395 
396 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
397 	static ACPI_INLINE prototype {return;}
398 
399 #endif				/* ACPI_DEBUGGER */
400 
401 /*****************************************************************************
402  *
403  * ACPICA public interface prototypes
404  *
405  ****************************************************************************/
406 
407 /*
408  * Initialization
409  */
410 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
411 			    acpi_initialize_tables(struct acpi_table_desc
412 						   *initial_storage,
413 						   u32 initial_table_count,
414 						   u8 allow_resize))
415 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
416 			     acpi_initialize_subsystem(void))
417 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
418 			     acpi_enable_subsystem(u32 flags))
419 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
420 			     acpi_initialize_objects(u32 flags))
421 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
422 			     acpi_terminate(void))
423 
424 /*
425  * Miscellaneous global interfaces
426  */
427 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void))
428 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
429 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_subsystem_status(void))
430 
431 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
432 			    acpi_get_system_info(struct acpi_buffer
433 						 *ret_buffer))
434 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
435 			     acpi_get_statistics(struct acpi_statistics *stats))
436 ACPI_EXTERNAL_RETURN_PTR(const char
437 			  *acpi_format_exception(acpi_status exception))
438 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_purge_cached_objects(void))
439 
440 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
441 			    acpi_install_interface(acpi_string interface_name))
442 
443 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
444 			    acpi_remove_interface(acpi_string interface_name))
445 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_update_interfaces(u8 action))
446 
447 ACPI_EXTERNAL_RETURN_UINT32(u32
448 			    acpi_check_address_range(acpi_adr_space_type
449 						     space_id,
450 						     acpi_physical_address
451 						     address, acpi_size length,
452 						     u8 warn))
453 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
454 			     acpi_decode_pld_buffer(u8 *in_buffer,
455 						    acpi_size length,
456 						    struct acpi_pld_info
457 						    **return_buffer))
458 
459 /*
460  * ACPI table load/unload interfaces
461  */
462 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
463 			    acpi_install_table(struct acpi_table_header *table))
464 
465 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
466 			    acpi_install_physical_table(acpi_physical_address
467 							address))
468 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
469 			    acpi_load_table(struct acpi_table_header *table,
470 					    u32 *table_idx))
471 
472 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
473 			    acpi_unload_table(u32 table_index))
474 
475 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
476 			    acpi_unload_parent_table(acpi_handle object))
477 
478 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
479 			    acpi_load_tables(void))
480 
481 /*
482  * ACPI table manipulation interfaces
483  */
484 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
485 			    acpi_reallocate_root_table(void))
486 
487 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
488 			    acpi_find_root_pointer(acpi_physical_address
489 						   *rsdp_address))
490 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
491 			     acpi_get_table_header(acpi_string signature,
492 						   u32 instance,
493 						   struct acpi_table_header
494 						   *out_table_header))
495 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
496 			     acpi_get_table(acpi_string signature, u32 instance,
497 					    struct acpi_table_header
498 					    **out_table))
499 ACPI_EXTERNAL_RETURN_VOID(void acpi_put_table(struct acpi_table_header *table))
500 
501 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
502 			    acpi_get_table_by_index(u32 table_index,
503 						    struct acpi_table_header
504 						    **out_table))
505 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
506 			     acpi_install_table_handler(acpi_table_handler
507 							handler, void *context))
508 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
509 			     acpi_remove_table_handler(acpi_table_handler
510 						       handler))
511 
512 /*
513  * Namespace and name interfaces
514  */
515 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
516 			    acpi_walk_namespace(acpi_object_type type,
517 						acpi_handle start_object,
518 						u32 max_depth,
519 						acpi_walk_callback
520 						descending_callback,
521 						acpi_walk_callback
522 						ascending_callback,
523 						void *context,
524 						void **return_value))
525 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
526 			     acpi_get_devices(const char *HID,
527 					      acpi_walk_callback user_function,
528 					      void *context,
529 					      void **return_value))
530 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
531 			     acpi_get_name(acpi_handle object, u32 name_type,
532 					   struct acpi_buffer *ret_path_ptr))
533 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
534 			     acpi_get_handle(acpi_handle parent,
535 					     const char *pathname,
536 					     acpi_handle *ret_handle))
537 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
538 			     acpi_attach_data(acpi_handle object,
539 					      acpi_object_handler handler,
540 					      void *data))
541 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
542 			     acpi_detach_data(acpi_handle object,
543 					      acpi_object_handler handler))
544 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
545 			     acpi_get_data(acpi_handle object,
546 					   acpi_object_handler handler,
547 					   void **data))
548 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
549 			     acpi_debug_trace(const char *name, u32 debug_level,
550 					      u32 debug_layer, u32 flags))
551 
552 /*
553  * Object manipulation and enumeration
554  */
555 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
556 			    acpi_evaluate_object(acpi_handle object,
557 						 acpi_string pathname,
558 						 struct acpi_object_list
559 						 *parameter_objects,
560 						 struct acpi_buffer
561 						 *return_object_buffer))
562 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
563 			     acpi_evaluate_object_typed(acpi_handle object,
564 							acpi_string pathname,
565 							struct acpi_object_list
566 							*external_params,
567 							struct acpi_buffer
568 							*return_buffer,
569 							acpi_object_type
570 							return_type))
571 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
572 			     acpi_get_object_info(acpi_handle object,
573 						  struct acpi_device_info
574 						  **return_buffer))
575 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_install_method(u8 *buffer))
576 
577 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
578 			    acpi_get_next_object(acpi_object_type type,
579 						 acpi_handle parent,
580 						 acpi_handle child,
581 						 acpi_handle *out_handle))
582 
583 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
584 			    acpi_get_type(acpi_handle object,
585 					  acpi_object_type *out_type))
586 
587 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
588 			    acpi_get_parent(acpi_handle object,
589 					    acpi_handle *out_handle))
590 
591 /*
592  * Handler interfaces
593  */
594 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
595 			    acpi_install_initialization_handler
596 			    (acpi_init_handler handler, u32 function))
597 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
598 				acpi_install_sci_handler(acpi_sci_handler
599 							 address,
600 							 void *context))
601 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
602 				acpi_remove_sci_handler(acpi_sci_handler
603 							address))
604 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
605 				acpi_install_global_event_handler
606 				(acpi_gbl_event_handler handler,
607 				 void *context))
608 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
609 				acpi_install_fixed_event_handler(u32
610 								 acpi_event,
611 								 acpi_event_handler
612 								 handler,
613 								 void
614 								 *context))
615 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
616 				acpi_remove_fixed_event_handler(u32 acpi_event,
617 								acpi_event_handler
618 								handler))
619 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
620 				acpi_install_gpe_handler(acpi_handle
621 							 gpe_device,
622 							 u32 gpe_number,
623 							 u32 type,
624 							 acpi_gpe_handler
625 							 address,
626 							 void *context))
627 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
628 				acpi_install_gpe_raw_handler(acpi_handle
629 							     gpe_device,
630 							     u32 gpe_number,
631 							     u32 type,
632 							     acpi_gpe_handler
633 							     address,
634 							     void *context))
635 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
636 				acpi_remove_gpe_handler(acpi_handle gpe_device,
637 							u32 gpe_number,
638 							acpi_gpe_handler
639 							address))
640 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
641 			    acpi_install_notify_handler(acpi_handle device,
642 							u32 handler_type,
643 							acpi_notify_handler
644 							handler,
645 							void *context))
646 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
647 			    acpi_remove_notify_handler(acpi_handle device,
648 						       u32 handler_type,
649 						       acpi_notify_handler
650 						       handler))
651 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
652 			    acpi_install_address_space_handler(acpi_handle
653 							       device,
654 							       acpi_adr_space_type
655 							       space_id,
656 							       acpi_adr_space_handler
657 							       handler,
658 							       acpi_adr_space_setup
659 							       setup,
660 							       void *context))
661 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
662 			    acpi_install_address_space_handler_no_reg
663 			    (acpi_handle device, acpi_adr_space_type space_id,
664 			     acpi_adr_space_handler handler,
665 			     acpi_adr_space_setup setup,
666 			     void *context))
667 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
668 			    acpi_execute_reg_methods(acpi_handle device,
669 						     u32 nax_depth,
670 						     acpi_adr_space_type
671 						     space_id))
672 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
673 			    acpi_remove_address_space_handler(acpi_handle
674 							      device,
675 							      acpi_adr_space_type
676 							      space_id,
677 							      acpi_adr_space_handler
678 							      handler))
679 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
680 			    acpi_install_exception_handler
681 			    (acpi_exception_handler handler))
682 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
683 			    acpi_install_interface_handler
684 			    (acpi_interface_handler handler))
685 
686 /*
687  * Global Lock interfaces
688  */
689 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
690 				acpi_acquire_global_lock(u16 timeout,
691 							 u32 *handle))
692 
693 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
694 				acpi_release_global_lock(u32 handle))
695 
696 /*
697  * Interfaces to AML mutex objects
698  */
699 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
700 			    acpi_acquire_mutex(acpi_handle handle,
701 					       acpi_string pathname,
702 					       u16 timeout))
703 
704 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
705 			    acpi_release_mutex(acpi_handle handle,
706 					       acpi_string pathname))
707 
708 /*
709  * Fixed Event interfaces
710  */
711 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
712 				acpi_enable_event(u32 event, u32 flags))
713 
714 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
715 				acpi_disable_event(u32 event, u32 flags))
716 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_clear_event(u32 event))
717 
718 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
719 				acpi_get_event_status(u32 event,
720 						      acpi_event_status
721 						      *event_status))
722 
723 /*
724  * General Purpose Event (GPE) Interfaces
725  */
726 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_update_all_gpes(void))
727 
728 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
729 				acpi_enable_gpe(acpi_handle gpe_device,
730 						u32 gpe_number))
731 
732 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
733 				acpi_disable_gpe(acpi_handle gpe_device,
734 						 u32 gpe_number))
735 
736 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
737 				acpi_clear_gpe(acpi_handle gpe_device,
738 					       u32 gpe_number))
739 
740 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
741 				acpi_set_gpe(acpi_handle gpe_device,
742 					     u32 gpe_number, u8 action))
743 
744 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
745 				acpi_finish_gpe(acpi_handle gpe_device,
746 						u32 gpe_number))
747 
748 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
749 				acpi_mask_gpe(acpi_handle gpe_device,
750 					      u32 gpe_number, u8 is_masked))
751 
752 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
753 				acpi_mark_gpe_for_wake(acpi_handle gpe_device,
754 						       u32 gpe_number))
755 
756 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
757 				acpi_setup_gpe_for_wake(acpi_handle
758 							parent_device,
759 							acpi_handle gpe_device,
760 							u32 gpe_number))
761 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
762 				 acpi_set_gpe_wake_mask(acpi_handle gpe_device,
763 							u32 gpe_number,
764 							u8 action))
765 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
766 				 acpi_get_gpe_status(acpi_handle gpe_device,
767 						     u32 gpe_number,
768 						     acpi_event_status
769 						     *event_status))
770 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
771 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_hw_disable_all_gpes(void))
772 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_hw_enable_all_wakeup_gpes(void))
773 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
774 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
775 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
776 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_any_gpe_status_set(u32 gpe_skip_number))
777 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_any_fixed_event_status_set(void))
778 
779 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
780 				acpi_get_gpe_device(u32 gpe_index,
781 						    acpi_handle *gpe_device))
782 
783 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
784 				acpi_install_gpe_block(acpi_handle gpe_device,
785 						       struct
786 						       acpi_generic_address
787 						       *gpe_block_address,
788 						       u32 register_count,
789 						       u32 interrupt_number))
790 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
791 				 acpi_remove_gpe_block(acpi_handle gpe_device))
792 
793 /*
794  * Resource interfaces
795  */
796 typedef
797 acpi_status (*acpi_walk_resource_callback) (struct acpi_resource * resource,
798 					    void *context);
799 
800 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
801 			    acpi_get_vendor_resource(acpi_handle device,
802 						     char *name,
803 						     struct acpi_vendor_uuid
804 						     *uuid,
805 						     struct acpi_buffer
806 						     *ret_buffer))
807 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
808 			     acpi_get_current_resources(acpi_handle device,
809 							struct acpi_buffer
810 							*ret_buffer))
811 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
812 			     acpi_get_possible_resources(acpi_handle device,
813 							 struct acpi_buffer
814 							 *ret_buffer))
815 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
816 			     acpi_get_event_resources(acpi_handle device_handle,
817 						      struct acpi_buffer
818 						      *ret_buffer))
819 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
820 			     acpi_walk_resource_buffer(struct acpi_buffer
821 						       *buffer,
822 						       acpi_walk_resource_callback
823 						       user_function,
824 						       void *context))
825 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
826 			     acpi_walk_resources(acpi_handle device, char *name,
827 						 acpi_walk_resource_callback
828 						 user_function, void *context))
829 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
830 			     acpi_set_current_resources(acpi_handle device,
831 							struct acpi_buffer
832 							*in_buffer))
833 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
834 			     acpi_get_irq_routing_table(acpi_handle device,
835 							struct acpi_buffer
836 							*ret_buffer))
837 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
838 			     acpi_resource_to_address64(struct acpi_resource
839 							*resource,
840 							struct
841 							acpi_resource_address64
842 							*out))
843 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
844 			     acpi_buffer_to_resource(u8 *aml_buffer,
845 						     u16 aml_buffer_length,
846 						     struct acpi_resource
847 						     **resource_ptr))
848 
849 /*
850  * Hardware (ACPI device) interfaces
851  */
852 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_reset(void))
853 
854 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
855 			    acpi_read(u64 *value,
856 				      struct acpi_generic_address *reg))
857 
858 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
859 			    acpi_write(u64 value,
860 				       struct acpi_generic_address *reg))
861 
862 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
863 				acpi_read_bit_register(u32 register_id,
864 						       u32 *return_value))
865 
866 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
867 				acpi_write_bit_register(u32 register_id,
868 							u32 value))
869 
870 /*
871  * Sleep/Wake interfaces
872  */
873 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
874 			    acpi_get_sleep_type_data(u8 sleep_state,
875 						     u8 *slp_typ_a,
876 						     u8 *slp_typ_b))
877 
878 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
879 			    acpi_enter_sleep_state_prep(u8 sleep_state))
880 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_enter_sleep_state(u8 sleep_state))
881 
882 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enter_sleep_state_s4bios(void))
883 
884 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
885 			    acpi_leave_sleep_state_prep(u8 sleep_state))
886 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_leave_sleep_state(u8 sleep_state))
887 
888 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
889 			    acpi_set_firmware_waking_vector
890 			    (acpi_physical_address physical_address,
891 			     acpi_physical_address physical_address64))
892 /*
893  * ACPI Timer interfaces
894  */
895 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
896 				acpi_get_timer_resolution(u32 *resolution))
897 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks))
898 
899 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
900 				acpi_get_timer_duration(u32 start_ticks,
901 							u32 end_ticks,
902 							u32 *time_elapsed))
903 
904 /*
905  * Error/Warning output
906  */
907 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
908 			       void ACPI_INTERNAL_VAR_XFACE
909 			       acpi_error(const char *module_name,
910 					  u32 line_number,
911 					  const char *format, ...))
912 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
913 				void ACPI_INTERNAL_VAR_XFACE
914 				acpi_exception(const char *module_name,
915 					       u32 line_number,
916 					       acpi_status status,
917 					       const char *format, ...))
918 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
919 				void ACPI_INTERNAL_VAR_XFACE
920 				acpi_warning(const char *module_name,
921 					     u32 line_number,
922 					     const char *format, ...))
923 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
924 				void ACPI_INTERNAL_VAR_XFACE
925 				acpi_info(const char *format, ...))
926 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
927 				void ACPI_INTERNAL_VAR_XFACE
928 				acpi_bios_error(const char *module_name,
929 						u32 line_number,
930 						const char *format, ...))
931 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
932 				void ACPI_INTERNAL_VAR_XFACE
933 				acpi_bios_exception(const char *module_name,
934 						    u32 line_number,
935 						    acpi_status status,
936 						    const char *format, ...))
937 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
938 				void ACPI_INTERNAL_VAR_XFACE
939 				acpi_bios_warning(const char *module_name,
940 						  u32 line_number,
941 						  const char *format, ...))
942 
943 /*
944  * Debug output
945  */
946 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
947 			       void ACPI_INTERNAL_VAR_XFACE
948 			       acpi_debug_print(u32 requested_debug_level,
949 						u32 line_number,
950 						const char *function_name,
951 						const char *module_name,
952 						u32 component_id,
953 						const char *format, ...))
954 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
955 				void ACPI_INTERNAL_VAR_XFACE
956 				acpi_debug_print_raw(u32 requested_debug_level,
957 						     u32 line_number,
958 						     const char *function_name,
959 						     const char *module_name,
960 						     u32 component_id,
961 						     const char *format, ...))
962 
963 ACPI_DBG_DEPENDENT_RETURN_VOID(void
964 			       acpi_trace_point(acpi_trace_event_type type,
965 						u8 begin,
966 						u8 *aml, char *pathname))
967 
968 acpi_status acpi_initialize_debugger(void);
969 
970 void acpi_terminate_debugger(void);
971 
972 /*
973  * Divergences
974  */
975 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
976 			    acpi_get_data_full(acpi_handle object,
977 					       acpi_object_handler handler,
978 					       void **data,
979 					       void (*callback)(void *)))
980 
981 void acpi_set_debugger_thread_id(acpi_thread_id thread_id);
982 
983 #endif				/* __ACXFACE_H__ */
984