xref: /openbmc/linux/include/acpi/acpixf.h (revision 6d99a79c)
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 - 2018, 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                 0x20181003
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 support module level code by parsing an entire table as
161  * a method as it is loaded. Default is TRUE.
162  * NOTE, this is essentially obsolete and will be removed soon
163  * (01/2018).
164  */
165 ACPI_INIT_GLOBAL(u8, acpi_gbl_execute_tables_as_methods, TRUE);
166 
167 /*
168  * Optionally use 32-bit FADT addresses if and when there is a conflict
169  * (address mismatch) between the 32-bit and 64-bit versions of the
170  * address. Although ACPICA adheres to the ACPI specification which
171  * requires the use of the corresponding 64-bit address if it is non-zero,
172  * some machines have been found to have a corrupted non-zero 64-bit
173  * address. Default is FALSE, do not favor the 32-bit addresses.
174  */
175 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
176 
177 /*
178  * Optionally use 32-bit FACS table addresses.
179  * It is reported that some platforms fail to resume from system suspending
180  * if 64-bit FACS table address is selected:
181  * https://bugzilla.kernel.org/show_bug.cgi?id=74021
182  * Default is TRUE, favor the 32-bit addresses.
183  */
184 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_facs_addresses, TRUE);
185 
186 /*
187  * Optionally truncate I/O addresses to 16 bits. Provides compatibility
188  * with other ACPI implementations. NOTE: During ACPICA initialization,
189  * this value is set to TRUE if any Windows OSI strings have been
190  * requested by the BIOS.
191  */
192 ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
193 
194 /*
195  * Disable runtime checking and repair of values returned by control methods.
196  * Use only if the repair is causing a problem on a particular machine.
197  */
198 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
199 
200 /*
201  * Optionally do not install any SSDTs from the RSDT/XSDT during initialization.
202  * This can be useful for debugging ACPI problems on some machines.
203  */
204 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_install, FALSE);
205 
206 /*
207  * Optionally enable runtime namespace override.
208  */
209 ACPI_INIT_GLOBAL(u8, acpi_gbl_runtime_namespace_override, TRUE);
210 
211 /*
212  * We keep track of the latest version of Windows that has been requested by
213  * the BIOS. ACPI 5.0.
214  */
215 ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
216 
217 /*
218  * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
219  * that the ACPI hardware is no longer required. A flag in the FADT indicates
220  * a reduced HW machine, and that flag is duplicated here for convenience.
221  */
222 ACPI_INIT_GLOBAL(u8, acpi_gbl_reduced_hardware, FALSE);
223 
224 /*
225  * Maximum timeout for While() loop iterations before forced method abort.
226  * This mechanism is intended to prevent infinite loops during interpreter
227  * execution within a host kernel.
228  */
229 ACPI_INIT_GLOBAL(u32, acpi_gbl_max_loop_iterations, ACPI_MAX_LOOP_TIMEOUT);
230 
231 /*
232  * Optionally ignore AE_NOT_FOUND errors from named reference package elements
233  * during DSDT/SSDT table loading. This reduces error "noise" in platforms
234  * whose firmware is carrying around a bunch of unused package objects that
235  * refer to non-existent named objects. However, If the AML actually tries to
236  * use such a package, the unresolved element(s) will be replaced with NULL
237  * elements.
238  */
239 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_package_resolution_errors, FALSE);
240 
241 /*
242  * This mechanism is used to trace a specified AML method. The method is
243  * traced each time it is executed.
244  */
245 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_flags, 0);
246 ACPI_INIT_GLOBAL(const char *, acpi_gbl_trace_method_name, NULL);
247 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_level, ACPI_TRACE_LEVEL_DEFAULT);
248 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_layer, ACPI_TRACE_LAYER_DEFAULT);
249 
250 /*
251  * Runtime configuration of debug output control masks. We want the debug
252  * switches statically initialized so they are already set when the debugger
253  * is entered.
254  */
255 ACPI_INIT_GLOBAL(u32, acpi_dbg_level, ACPI_DEBUG_DEFAULT);
256 ACPI_INIT_GLOBAL(u32, acpi_dbg_layer, 0);
257 
258 /* Optionally enable timer output with Debug Object output */
259 
260 ACPI_INIT_GLOBAL(u8, acpi_gbl_display_debug_timer, FALSE);
261 
262 /*
263  * Debugger command handshake globals. Host OSes need to access these
264  * variables to implement their own command handshake mechanism.
265  */
266 #ifdef ACPI_DEBUGGER
267 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
268 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
269 #endif
270 
271 /*
272  * Other miscellaneous globals
273  */
274 ACPI_GLOBAL(struct acpi_table_fadt, acpi_gbl_FADT);
275 ACPI_GLOBAL(u32, acpi_current_gpe_count);
276 ACPI_GLOBAL(u8, acpi_gbl_system_awake_and_running);
277 
278 /*****************************************************************************
279  *
280  * ACPICA public interface configuration.
281  *
282  * Interfaces that are configured out of the ACPICA build are replaced
283  * by inlined stubs by default.
284  *
285  ****************************************************************************/
286 
287 /*
288  * Hardware-reduced prototypes (default: Not hardware reduced).
289  *
290  * All ACPICA hardware-related interfaces that use these macros will be
291  * configured out of the ACPICA build if the ACPI_REDUCED_HARDWARE flag
292  * is set to TRUE.
293  *
294  * Note: This static build option for reduced hardware is intended to
295  * reduce ACPICA code size if desired or necessary. However, even if this
296  * option is not specified, the runtime behavior of ACPICA is dependent
297  * on the actual FADT reduced hardware flag (HW_REDUCED_ACPI). If set,
298  * the flag will enable similar behavior -- ACPICA will not attempt
299  * to access any ACPI-relate hardware (SCI, GPEs, Fixed Events, etc.)
300  */
301 #if (!ACPI_REDUCED_HARDWARE)
302 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
303 	ACPI_EXTERNAL_RETURN_STATUS(prototype)
304 
305 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
306 	ACPI_EXTERNAL_RETURN_OK(prototype)
307 
308 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
309 	ACPI_EXTERNAL_RETURN_VOID(prototype)
310 
311 #else
312 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
313 	static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
314 
315 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
316 	static ACPI_INLINE prototype {return(AE_OK);}
317 
318 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
319 	static ACPI_INLINE prototype {return;}
320 
321 #endif				/* !ACPI_REDUCED_HARDWARE */
322 
323 /*
324  * Error message prototypes (default: error messages enabled).
325  *
326  * All interfaces related to error and warning messages
327  * will be configured out of the ACPICA build if the
328  * ACPI_NO_ERROR_MESSAGE flag is defined.
329  */
330 #ifndef ACPI_NO_ERROR_MESSAGES
331 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
332 	prototype;
333 
334 #else
335 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
336 	static ACPI_INLINE prototype {return;}
337 
338 #endif				/* ACPI_NO_ERROR_MESSAGES */
339 
340 /*
341  * Debugging output prototypes (default: no debug output).
342  *
343  * All interfaces related to debug output messages
344  * will be configured out of the ACPICA build unless the
345  * ACPI_DEBUG_OUTPUT flag is defined.
346  */
347 #ifdef ACPI_DEBUG_OUTPUT
348 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
349 	prototype;
350 
351 #else
352 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
353 	static ACPI_INLINE prototype {return;}
354 
355 #endif				/* ACPI_DEBUG_OUTPUT */
356 
357 /*
358  * Application prototypes
359  *
360  * All interfaces used by application will be configured
361  * out of the ACPICA build unless the ACPI_APPLICATION
362  * flag is defined.
363  */
364 #ifdef ACPI_APPLICATION
365 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
366 	prototype;
367 
368 #else
369 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
370 	static ACPI_INLINE prototype {return;}
371 
372 #endif				/* ACPI_APPLICATION */
373 
374 /*
375  * Debugger prototypes
376  *
377  * All interfaces used by debugger will be configured
378  * out of the ACPICA build unless the ACPI_DEBUGGER
379  * flag is defined.
380  */
381 #ifdef ACPI_DEBUGGER
382 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
383 	ACPI_EXTERNAL_RETURN_OK(prototype)
384 
385 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
386 	ACPI_EXTERNAL_RETURN_VOID(prototype)
387 
388 #else
389 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
390 	static ACPI_INLINE prototype {return(AE_OK);}
391 
392 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
393 	static ACPI_INLINE prototype {return;}
394 
395 #endif				/* ACPI_DEBUGGER */
396 
397 /*****************************************************************************
398  *
399  * ACPICA public interface prototypes
400  *
401  ****************************************************************************/
402 
403 /*
404  * Initialization
405  */
406 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
407 			    acpi_initialize_tables(struct acpi_table_desc
408 						   *initial_storage,
409 						   u32 initial_table_count,
410 						   u8 allow_resize))
411 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
412 			     acpi_initialize_subsystem(void))
413 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
414 			     acpi_enable_subsystem(u32 flags))
415 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
416 			     acpi_initialize_objects(u32 flags))
417 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
418 			     acpi_terminate(void))
419 
420 /*
421  * Miscellaneous global interfaces
422  */
423 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void))
424 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
425 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_subsystem_status(void))
426 
427 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
428 			    acpi_get_system_info(struct acpi_buffer
429 						 *ret_buffer))
430 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
431 			     acpi_get_statistics(struct acpi_statistics *stats))
432 ACPI_EXTERNAL_RETURN_PTR(const char
433 			  *acpi_format_exception(acpi_status exception))
434 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_purge_cached_objects(void))
435 
436 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
437 			    acpi_install_interface(acpi_string interface_name))
438 
439 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
440 			    acpi_remove_interface(acpi_string interface_name))
441 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_update_interfaces(u8 action))
442 
443 ACPI_EXTERNAL_RETURN_UINT32(u32
444 			    acpi_check_address_range(acpi_adr_space_type
445 						     space_id,
446 						     acpi_physical_address
447 						     address, acpi_size length,
448 						     u8 warn))
449 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
450 			     acpi_decode_pld_buffer(u8 *in_buffer,
451 						    acpi_size length,
452 						    struct acpi_pld_info
453 						    **return_buffer))
454 
455 /*
456  * ACPI table load/unload interfaces
457  */
458 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
459 			    acpi_install_table(acpi_physical_address address,
460 					       u8 physical))
461 
462 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
463 			    acpi_load_table(struct acpi_table_header *table))
464 
465 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
466 			    acpi_unload_parent_table(acpi_handle object))
467 
468 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
469 			    acpi_load_tables(void))
470 
471 /*
472  * ACPI table manipulation interfaces
473  */
474 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
475 			    acpi_reallocate_root_table(void))
476 
477 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
478 			    acpi_find_root_pointer(acpi_physical_address
479 						   *rsdp_address))
480 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
481 			     acpi_get_table_header(acpi_string signature,
482 						   u32 instance,
483 						   struct acpi_table_header
484 						   *out_table_header))
485 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
486 			     acpi_get_table(acpi_string signature, u32 instance,
487 					    struct acpi_table_header
488 					    **out_table))
489 ACPI_EXTERNAL_RETURN_VOID(void acpi_put_table(struct acpi_table_header *table))
490 
491 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
492 			    acpi_get_table_by_index(u32 table_index,
493 						    struct acpi_table_header
494 						    **out_table))
495 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
496 			     acpi_install_table_handler(acpi_table_handler
497 							handler, void *context))
498 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
499 			     acpi_remove_table_handler(acpi_table_handler
500 						       handler))
501 
502 /*
503  * Namespace and name interfaces
504  */
505 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
506 			    acpi_walk_namespace(acpi_object_type type,
507 						acpi_handle start_object,
508 						u32 max_depth,
509 						acpi_walk_callback
510 						descending_callback,
511 						acpi_walk_callback
512 						ascending_callback,
513 						void *context,
514 						void **return_value))
515 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
516 			     acpi_get_devices(const char *HID,
517 					      acpi_walk_callback user_function,
518 					      void *context,
519 					      void **return_value))
520 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
521 			     acpi_get_name(acpi_handle object, u32 name_type,
522 					   struct acpi_buffer *ret_path_ptr))
523 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
524 			     acpi_get_handle(acpi_handle parent,
525 					     acpi_string pathname,
526 					     acpi_handle *ret_handle))
527 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
528 			     acpi_attach_data(acpi_handle object,
529 					      acpi_object_handler handler,
530 					      void *data))
531 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
532 			     acpi_detach_data(acpi_handle object,
533 					      acpi_object_handler handler))
534 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
535 			     acpi_get_data(acpi_handle object,
536 					   acpi_object_handler handler,
537 					   void **data))
538 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
539 			     acpi_debug_trace(const char *name, u32 debug_level,
540 					      u32 debug_layer, u32 flags))
541 
542 /*
543  * Object manipulation and enumeration
544  */
545 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
546 			    acpi_evaluate_object(acpi_handle object,
547 						 acpi_string pathname,
548 						 struct acpi_object_list
549 						 *parameter_objects,
550 						 struct acpi_buffer
551 						 *return_object_buffer))
552 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
553 			     acpi_evaluate_object_typed(acpi_handle object,
554 							acpi_string pathname,
555 							struct acpi_object_list
556 							*external_params,
557 							struct acpi_buffer
558 							*return_buffer,
559 							acpi_object_type
560 							return_type))
561 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
562 			     acpi_get_object_info(acpi_handle object,
563 						  struct acpi_device_info
564 						  **return_buffer))
565 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_install_method(u8 *buffer))
566 
567 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
568 			    acpi_get_next_object(acpi_object_type type,
569 						 acpi_handle parent,
570 						 acpi_handle child,
571 						 acpi_handle *out_handle))
572 
573 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
574 			    acpi_get_type(acpi_handle object,
575 					  acpi_object_type *out_type))
576 
577 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
578 			    acpi_get_parent(acpi_handle object,
579 					    acpi_handle *out_handle))
580 
581 /*
582  * Handler interfaces
583  */
584 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
585 			    acpi_install_initialization_handler
586 			    (acpi_init_handler handler, u32 function))
587 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
588 				 acpi_install_sci_handler(acpi_sci_handler
589 							  address,
590 							  void *context))
591 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
592 				 acpi_remove_sci_handler(acpi_sci_handler
593 							 address))
594 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
595 				 acpi_install_global_event_handler
596 				 (acpi_gbl_event_handler handler,
597 				  void *context))
598 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
599 				 acpi_install_fixed_event_handler(u32
600 								  acpi_event,
601 								  acpi_event_handler
602 								  handler,
603 								  void
604 								  *context))
605 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
606 				 acpi_remove_fixed_event_handler(u32 acpi_event,
607 								 acpi_event_handler
608 								 handler))
609 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
610 				 acpi_install_gpe_handler(acpi_handle
611 							  gpe_device,
612 							  u32 gpe_number,
613 							  u32 type,
614 							  acpi_gpe_handler
615 							  address,
616 							  void *context))
617 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
618 				 acpi_install_gpe_raw_handler(acpi_handle
619 							      gpe_device,
620 							      u32 gpe_number,
621 							      u32 type,
622 							      acpi_gpe_handler
623 							      address,
624 							      void *context))
625 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
626 				 acpi_remove_gpe_handler(acpi_handle gpe_device,
627 							 u32 gpe_number,
628 							 acpi_gpe_handler
629 							 address))
630 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
631 			     acpi_install_notify_handler(acpi_handle device,
632 							 u32 handler_type,
633 							 acpi_notify_handler
634 							 handler,
635 							 void *context))
636 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
637 			     acpi_remove_notify_handler(acpi_handle device,
638 							u32 handler_type,
639 							acpi_notify_handler
640 							handler))
641 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
642 			     acpi_install_address_space_handler(acpi_handle
643 								device,
644 								acpi_adr_space_type
645 								space_id,
646 								acpi_adr_space_handler
647 								handler,
648 								acpi_adr_space_setup
649 								setup,
650 								void *context))
651 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
652 			     acpi_remove_address_space_handler(acpi_handle
653 							       device,
654 							       acpi_adr_space_type
655 							       space_id,
656 							       acpi_adr_space_handler
657 							       handler))
658 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
659 			     acpi_install_exception_handler
660 			     (acpi_exception_handler handler))
661 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
662 			     acpi_install_interface_handler
663 			     (acpi_interface_handler handler))
664 
665 /*
666  * Global Lock interfaces
667  */
668 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
669 				acpi_acquire_global_lock(u16 timeout,
670 							 u32 *handle))
671 
672 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
673 				acpi_release_global_lock(u32 handle))
674 
675 /*
676  * Interfaces to AML mutex objects
677  */
678 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
679 			    acpi_acquire_mutex(acpi_handle handle,
680 					       acpi_string pathname,
681 					       u16 timeout))
682 
683 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
684 			    acpi_release_mutex(acpi_handle handle,
685 					       acpi_string pathname))
686 
687 /*
688  * Fixed Event interfaces
689  */
690 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
691 				acpi_enable_event(u32 event, u32 flags))
692 
693 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
694 				acpi_disable_event(u32 event, u32 flags))
695 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_clear_event(u32 event))
696 
697 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
698 				acpi_get_event_status(u32 event,
699 						      acpi_event_status
700 						      *event_status))
701 
702 /*
703  * General Purpose Event (GPE) Interfaces
704  */
705 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_update_all_gpes(void))
706 
707 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
708 				acpi_enable_gpe(acpi_handle gpe_device,
709 						u32 gpe_number))
710 
711 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
712 				acpi_disable_gpe(acpi_handle gpe_device,
713 						 u32 gpe_number))
714 
715 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
716 				acpi_clear_gpe(acpi_handle gpe_device,
717 					       u32 gpe_number))
718 
719 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
720 				acpi_set_gpe(acpi_handle gpe_device,
721 					     u32 gpe_number, u8 action))
722 
723 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
724 				acpi_finish_gpe(acpi_handle gpe_device,
725 						u32 gpe_number))
726 
727 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
728 				acpi_mask_gpe(acpi_handle gpe_device,
729 					      u32 gpe_number, u8 is_masked))
730 
731 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
732 				acpi_mark_gpe_for_wake(acpi_handle gpe_device,
733 						       u32 gpe_number))
734 
735 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
736 				acpi_setup_gpe_for_wake(acpi_handle
737 							parent_device,
738 							acpi_handle gpe_device,
739 							u32 gpe_number))
740 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
741 				 acpi_set_gpe_wake_mask(acpi_handle gpe_device,
742 							u32 gpe_number,
743 							u8 action))
744 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
745 				 acpi_get_gpe_status(acpi_handle gpe_device,
746 						     u32 gpe_number,
747 						     acpi_event_status
748 						     *event_status))
749 ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
750 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
751 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
752 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
753 
754 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
755 				acpi_get_gpe_device(u32 gpe_index,
756 						    acpi_handle *gpe_device))
757 
758 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
759 				acpi_install_gpe_block(acpi_handle gpe_device,
760 						       struct
761 						       acpi_generic_address
762 						       *gpe_block_address,
763 						       u32 register_count,
764 						       u32 interrupt_number))
765 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
766 				 acpi_remove_gpe_block(acpi_handle gpe_device))
767 
768 /*
769  * Resource interfaces
770  */
771 typedef
772 acpi_status (*acpi_walk_resource_callback) (struct acpi_resource * resource,
773 					    void *context);
774 
775 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
776 			    acpi_get_vendor_resource(acpi_handle device,
777 						     char *name,
778 						     struct acpi_vendor_uuid
779 						     *uuid,
780 						     struct acpi_buffer
781 						     *ret_buffer))
782 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
783 			     acpi_get_current_resources(acpi_handle device,
784 							struct acpi_buffer
785 							*ret_buffer))
786 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
787 			     acpi_get_possible_resources(acpi_handle device,
788 							 struct acpi_buffer
789 							 *ret_buffer))
790 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
791 			     acpi_get_event_resources(acpi_handle device_handle,
792 						      struct acpi_buffer
793 						      *ret_buffer))
794 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
795 			     acpi_walk_resource_buffer(struct acpi_buffer
796 						       *buffer,
797 						       acpi_walk_resource_callback
798 						       user_function,
799 						       void *context))
800 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
801 			     acpi_walk_resources(acpi_handle device, char *name,
802 						 acpi_walk_resource_callback
803 						 user_function, void *context))
804 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
805 			     acpi_set_current_resources(acpi_handle device,
806 							struct acpi_buffer
807 							*in_buffer))
808 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
809 			     acpi_get_irq_routing_table(acpi_handle device,
810 							struct acpi_buffer
811 							*ret_buffer))
812 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
813 			     acpi_resource_to_address64(struct acpi_resource
814 							*resource,
815 							struct
816 							acpi_resource_address64
817 							*out))
818 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
819 			     acpi_buffer_to_resource(u8 *aml_buffer,
820 						     u16 aml_buffer_length,
821 						     struct acpi_resource
822 						     **resource_ptr))
823 
824 /*
825  * Hardware (ACPI device) interfaces
826  */
827 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_reset(void))
828 
829 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
830 			    acpi_read(u64 *value,
831 				      struct acpi_generic_address *reg))
832 
833 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
834 			    acpi_write(u64 value,
835 				       struct acpi_generic_address *reg))
836 
837 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
838 				acpi_read_bit_register(u32 register_id,
839 						       u32 *return_value))
840 
841 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
842 				acpi_write_bit_register(u32 register_id,
843 							u32 value))
844 
845 /*
846  * Sleep/Wake interfaces
847  */
848 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
849 			    acpi_get_sleep_type_data(u8 sleep_state,
850 						     u8 *slp_typ_a,
851 						     u8 *slp_typ_b))
852 
853 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
854 			    acpi_enter_sleep_state_prep(u8 sleep_state))
855 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_enter_sleep_state(u8 sleep_state))
856 
857 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enter_sleep_state_s4bios(void))
858 
859 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
860 			    acpi_leave_sleep_state_prep(u8 sleep_state))
861 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_leave_sleep_state(u8 sleep_state))
862 
863 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
864 				acpi_set_firmware_waking_vector
865 				(acpi_physical_address physical_address,
866 				 acpi_physical_address physical_address64))
867 /*
868  * ACPI Timer interfaces
869  */
870 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
871 				acpi_get_timer_resolution(u32 *resolution))
872 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks))
873 
874 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
875 				acpi_get_timer_duration(u32 start_ticks,
876 							u32 end_ticks,
877 							u32 *time_elapsed))
878 
879 /*
880  * Error/Warning output
881  */
882 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
883 			       void ACPI_INTERNAL_VAR_XFACE
884 			       acpi_error(const char *module_name,
885 					  u32 line_number,
886 					  const char *format, ...))
887 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
888 				void ACPI_INTERNAL_VAR_XFACE
889 				acpi_exception(const char *module_name,
890 					       u32 line_number,
891 					       acpi_status status,
892 					       const char *format, ...))
893 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
894 				void ACPI_INTERNAL_VAR_XFACE
895 				acpi_warning(const char *module_name,
896 					     u32 line_number,
897 					     const char *format, ...))
898 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
899 				void ACPI_INTERNAL_VAR_XFACE
900 				acpi_info(const char *format, ...))
901 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
902 				void ACPI_INTERNAL_VAR_XFACE
903 				acpi_bios_error(const char *module_name,
904 						u32 line_number,
905 						const char *format, ...))
906 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
907 				void ACPI_INTERNAL_VAR_XFACE
908 				acpi_bios_warning(const char *module_name,
909 						  u32 line_number,
910 						  const char *format, ...))
911 
912 /*
913  * Debug output
914  */
915 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
916 			       void ACPI_INTERNAL_VAR_XFACE
917 			       acpi_debug_print(u32 requested_debug_level,
918 						u32 line_number,
919 						const char *function_name,
920 						const char *module_name,
921 						u32 component_id,
922 						const char *format, ...))
923 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
924 				void ACPI_INTERNAL_VAR_XFACE
925 				acpi_debug_print_raw(u32 requested_debug_level,
926 						     u32 line_number,
927 						     const char *function_name,
928 						     const char *module_name,
929 						     u32 component_id,
930 						     const char *format, ...))
931 
932 ACPI_DBG_DEPENDENT_RETURN_VOID(void
933 			       acpi_trace_point(acpi_trace_event_type type,
934 						u8 begin,
935 						u8 *aml, char *pathname))
936 
937 acpi_status acpi_initialize_debugger(void);
938 
939 void acpi_terminate_debugger(void);
940 
941 /*
942  * Divergences
943  */
944 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
945 			    acpi_get_data_full(acpi_handle object,
946 					       acpi_object_handler handler,
947 					       void **data,
948 					       void (*callback)(void *)))
949 
950 void acpi_run_debugger(char *batch_buffer);
951 
952 void acpi_set_debugger_thread_id(acpi_thread_id thread_id);
953 
954 #endif				/* __ACXFACE_H__ */
955