xref: /openbmc/linux/include/acpi/acpixf.h (revision 7b3a3558)
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 - 2023, 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                 0x20230628
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  * Maximum timeout for While() loop iterations before forced method abort.
218  * This mechanism is intended to prevent infinite loops during interpreter
219  * execution within a host kernel.
220  */
221 ACPI_INIT_GLOBAL(u32, acpi_gbl_max_loop_iterations, ACPI_MAX_LOOP_TIMEOUT);
222 
223 /*
224  * Optionally ignore AE_NOT_FOUND errors from named reference package elements
225  * during DSDT/SSDT table loading. This reduces error "noise" in platforms
226  * whose firmware is carrying around a bunch of unused package objects that
227  * refer to non-existent named objects. However, If the AML actually tries to
228  * use such a package, the unresolved element(s) will be replaced with NULL
229  * elements.
230  */
231 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_package_resolution_errors, FALSE);
232 
233 /*
234  * This mechanism is used to trace a specified AML method. The method is
235  * traced each time it is executed.
236  */
237 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_flags, 0);
238 ACPI_INIT_GLOBAL(const char *, acpi_gbl_trace_method_name, NULL);
239 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_level, ACPI_TRACE_LEVEL_DEFAULT);
240 ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_layer, ACPI_TRACE_LAYER_DEFAULT);
241 
242 /*
243  * Runtime configuration of debug output control masks. We want the debug
244  * switches statically initialized so they are already set when the debugger
245  * is entered.
246  */
247 ACPI_INIT_GLOBAL(u32, acpi_dbg_level, ACPI_DEBUG_DEFAULT);
248 ACPI_INIT_GLOBAL(u32, acpi_dbg_layer, 0);
249 
250 /* Optionally enable timer output with Debug Object output */
251 
252 ACPI_INIT_GLOBAL(u8, acpi_gbl_display_debug_timer, FALSE);
253 
254 /*
255  * Debugger command handshake globals. Host OSes need to access these
256  * variables to implement their own command handshake mechanism.
257  */
258 #ifdef ACPI_DEBUGGER
259 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
260 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
261 #endif
262 
263 /*
264  * Other miscellaneous globals
265  */
266 ACPI_GLOBAL(struct acpi_table_fadt, acpi_gbl_FADT);
267 ACPI_GLOBAL(u32, acpi_current_gpe_count);
268 ACPI_GLOBAL(u8, acpi_gbl_system_awake_and_running);
269 
270 /*****************************************************************************
271  *
272  * ACPICA public interface configuration.
273  *
274  * Interfaces that are configured out of the ACPICA build are replaced
275  * by inlined stubs by default.
276  *
277  ****************************************************************************/
278 
279 /*
280  * Hardware-reduced prototypes (default: Not hardware reduced).
281  *
282  * All ACPICA hardware-related interfaces that use these macros will be
283  * configured out of the ACPICA build if the ACPI_REDUCED_HARDWARE flag
284  * is set to TRUE.
285  *
286  * Note: This static build option for reduced hardware is intended to
287  * reduce ACPICA code size if desired or necessary. However, even if this
288  * option is not specified, the runtime behavior of ACPICA is dependent
289  * on the actual FADT reduced hardware flag (HW_REDUCED_ACPI). If set,
290  * the flag will enable similar behavior -- ACPICA will not attempt
291  * to access any ACPI-relate hardware (SCI, GPEs, Fixed Events, etc.)
292  */
293 #if (!ACPI_REDUCED_HARDWARE)
294 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
295 	ACPI_EXTERNAL_RETURN_STATUS(prototype)
296 
297 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
298 	ACPI_EXTERNAL_RETURN_OK(prototype)
299 
300 #define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
301 	ACPI_EXTERNAL_RETURN_UINT32(prototype)
302 
303 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
304 	ACPI_EXTERNAL_RETURN_VOID(prototype)
305 
306 #else
307 #define ACPI_HW_DEPENDENT_RETURN_STATUS(prototype) \
308 	static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
309 
310 #define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
311 	static ACPI_INLINE prototype {return(AE_OK);}
312 
313 #define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
314 	static ACPI_INLINE prototype {return(0);}
315 
316 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
317 	static ACPI_INLINE prototype {return;}
318 
319 #endif				/* !ACPI_REDUCED_HARDWARE */
320 
321 /*
322  * Error message prototypes (default: error messages enabled).
323  *
324  * All interfaces related to error and warning messages
325  * will be configured out of the ACPICA build if the
326  * ACPI_NO_ERROR_MESSAGE flag is defined.
327  */
328 #ifndef ACPI_NO_ERROR_MESSAGES
329 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
330 	prototype;
331 
332 #else
333 #define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
334 	static ACPI_INLINE prototype {return;}
335 
336 #endif				/* ACPI_NO_ERROR_MESSAGES */
337 
338 /*
339  * Debugging output prototypes (default: no debug output).
340  *
341  * All interfaces related to debug output messages
342  * will be configured out of the ACPICA build unless the
343  * ACPI_DEBUG_OUTPUT flag is defined.
344  */
345 #ifdef ACPI_DEBUG_OUTPUT
346 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
347 	prototype;
348 
349 #else
350 #define ACPI_DBG_DEPENDENT_RETURN_VOID(prototype) \
351 	static ACPI_INLINE prototype {return;}
352 
353 #endif				/* ACPI_DEBUG_OUTPUT */
354 
355 /*
356  * Application prototypes
357  *
358  * All interfaces used by application will be configured
359  * out of the ACPICA build unless the ACPI_APPLICATION
360  * flag is defined.
361  */
362 #ifdef ACPI_APPLICATION
363 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
364 	prototype;
365 
366 #else
367 #define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
368 	static ACPI_INLINE prototype {return;}
369 
370 #endif				/* ACPI_APPLICATION */
371 
372 /*
373  * Debugger prototypes
374  *
375  * All interfaces used by debugger will be configured
376  * out of the ACPICA build unless the ACPI_DEBUGGER
377  * flag is defined.
378  */
379 #ifdef ACPI_DEBUGGER
380 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
381 	ACPI_EXTERNAL_RETURN_OK(prototype)
382 
383 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
384 	ACPI_EXTERNAL_RETURN_VOID(prototype)
385 
386 #else
387 #define ACPI_DBR_DEPENDENT_RETURN_OK(prototype) \
388 	static ACPI_INLINE prototype {return(AE_OK);}
389 
390 #define ACPI_DBR_DEPENDENT_RETURN_VOID(prototype) \
391 	static ACPI_INLINE prototype {return;}
392 
393 #endif				/* ACPI_DEBUGGER */
394 
395 /*****************************************************************************
396  *
397  * ACPICA public interface prototypes
398  *
399  ****************************************************************************/
400 
401 /*
402  * Initialization
403  */
404 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
405 			    acpi_initialize_tables(struct acpi_table_desc
406 						   *initial_storage,
407 						   u32 initial_table_count,
408 						   u8 allow_resize))
409 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
410 			     acpi_initialize_subsystem(void))
411 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
412 			     acpi_enable_subsystem(u32 flags))
413 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
414 			     acpi_initialize_objects(u32 flags))
415 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
416 			     acpi_terminate(void))
417 
418 /*
419  * Miscellaneous global interfaces
420  */
421 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void))
422 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
423 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_subsystem_status(void))
424 
425 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
426 			    acpi_get_system_info(struct acpi_buffer
427 						 *ret_buffer))
428 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
429 			     acpi_get_statistics(struct acpi_statistics *stats))
430 ACPI_EXTERNAL_RETURN_PTR(const char
431 			  *acpi_format_exception(acpi_status exception))
432 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_purge_cached_objects(void))
433 
434 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
435 			    acpi_install_interface(acpi_string interface_name))
436 
437 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
438 			    acpi_remove_interface(acpi_string interface_name))
439 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_update_interfaces(u8 action))
440 
441 ACPI_EXTERNAL_RETURN_UINT32(u32
442 			    acpi_check_address_range(acpi_adr_space_type
443 						     space_id,
444 						     acpi_physical_address
445 						     address, acpi_size length,
446 						     u8 warn))
447 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
448 			     acpi_decode_pld_buffer(u8 *in_buffer,
449 						    acpi_size length,
450 						    struct acpi_pld_info
451 						    **return_buffer))
452 
453 /*
454  * ACPI table load/unload interfaces
455  */
456 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
457 			    acpi_install_table(struct acpi_table_header *table))
458 
459 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
460 			    acpi_install_physical_table(acpi_physical_address
461 							address))
462 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
463 			    acpi_load_table(struct acpi_table_header *table,
464 					    u32 *table_idx))
465 
466 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
467 			    acpi_unload_table(u32 table_index))
468 
469 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
470 			    acpi_unload_parent_table(acpi_handle object))
471 
472 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
473 			    acpi_load_tables(void))
474 
475 /*
476  * ACPI table manipulation interfaces
477  */
478 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
479 			    acpi_reallocate_root_table(void))
480 
481 ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
482 			    acpi_find_root_pointer(acpi_physical_address
483 						   *rsdp_address))
484 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
485 			     acpi_get_table_header(acpi_string signature,
486 						   u32 instance,
487 						   struct acpi_table_header
488 						   *out_table_header))
489 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
490 			     acpi_get_table(acpi_string signature, u32 instance,
491 					    struct acpi_table_header
492 					    **out_table))
493 ACPI_EXTERNAL_RETURN_VOID(void acpi_put_table(struct acpi_table_header *table))
494 
495 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
496 			    acpi_get_table_by_index(u32 table_index,
497 						    struct acpi_table_header
498 						    **out_table))
499 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
500 			     acpi_install_table_handler(acpi_table_handler
501 							handler, void *context))
502 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
503 			     acpi_remove_table_handler(acpi_table_handler
504 						       handler))
505 
506 /*
507  * Namespace and name interfaces
508  */
509 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
510 			    acpi_walk_namespace(acpi_object_type type,
511 						acpi_handle start_object,
512 						u32 max_depth,
513 						acpi_walk_callback
514 						descending_callback,
515 						acpi_walk_callback
516 						ascending_callback,
517 						void *context,
518 						void **return_value))
519 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
520 			     acpi_get_devices(const char *HID,
521 					      acpi_walk_callback user_function,
522 					      void *context,
523 					      void **return_value))
524 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
525 			     acpi_get_name(acpi_handle object, u32 name_type,
526 					   struct acpi_buffer *ret_path_ptr))
527 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
528 			     acpi_get_handle(acpi_handle parent,
529 					     const char *pathname,
530 					     acpi_handle *ret_handle))
531 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
532 			     acpi_attach_data(acpi_handle object,
533 					      acpi_object_handler handler,
534 					      void *data))
535 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
536 			     acpi_detach_data(acpi_handle object,
537 					      acpi_object_handler handler))
538 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
539 			     acpi_get_data(acpi_handle object,
540 					   acpi_object_handler handler,
541 					   void **data))
542 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
543 			     acpi_debug_trace(const char *name, u32 debug_level,
544 					      u32 debug_layer, u32 flags))
545 
546 /*
547  * Object manipulation and enumeration
548  */
549 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
550 			    acpi_evaluate_object(acpi_handle object,
551 						 acpi_string pathname,
552 						 struct acpi_object_list
553 						 *parameter_objects,
554 						 struct acpi_buffer
555 						 *return_object_buffer))
556 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
557 			     acpi_evaluate_object_typed(acpi_handle object,
558 							acpi_string pathname,
559 							struct acpi_object_list
560 							*external_params,
561 							struct acpi_buffer
562 							*return_buffer,
563 							acpi_object_type
564 							return_type))
565 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
566 			     acpi_get_object_info(acpi_handle object,
567 						  struct acpi_device_info
568 						  **return_buffer))
569 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_install_method(u8 *buffer))
570 
571 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
572 			    acpi_get_next_object(acpi_object_type type,
573 						 acpi_handle parent,
574 						 acpi_handle child,
575 						 acpi_handle *out_handle))
576 
577 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
578 			    acpi_get_type(acpi_handle object,
579 					  acpi_object_type *out_type))
580 
581 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
582 			    acpi_get_parent(acpi_handle object,
583 					    acpi_handle *out_handle))
584 
585 /*
586  * Handler interfaces
587  */
588 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
589 			    acpi_install_initialization_handler
590 			    (acpi_init_handler handler, u32 function))
591 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
592 				acpi_install_sci_handler(acpi_sci_handler
593 							 address,
594 							 void *context))
595 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
596 				acpi_remove_sci_handler(acpi_sci_handler
597 							address))
598 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
599 				acpi_install_global_event_handler
600 				(acpi_gbl_event_handler handler,
601 				 void *context))
602 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
603 				acpi_install_fixed_event_handler(u32
604 								 acpi_event,
605 								 acpi_event_handler
606 								 handler,
607 								 void
608 								 *context))
609 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
610 				acpi_remove_fixed_event_handler(u32 acpi_event,
611 								acpi_event_handler
612 								handler))
613 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
614 				acpi_install_gpe_handler(acpi_handle
615 							 gpe_device,
616 							 u32 gpe_number,
617 							 u32 type,
618 							 acpi_gpe_handler
619 							 address,
620 							 void *context))
621 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
622 				acpi_install_gpe_raw_handler(acpi_handle
623 							     gpe_device,
624 							     u32 gpe_number,
625 							     u32 type,
626 							     acpi_gpe_handler
627 							     address,
628 							     void *context))
629 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
630 				acpi_remove_gpe_handler(acpi_handle gpe_device,
631 							u32 gpe_number,
632 							acpi_gpe_handler
633 							address))
634 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
635 			    acpi_install_notify_handler(acpi_handle device,
636 							u32 handler_type,
637 							acpi_notify_handler
638 							handler,
639 							void *context))
640 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
641 			    acpi_remove_notify_handler(acpi_handle device,
642 						       u32 handler_type,
643 						       acpi_notify_handler
644 						       handler))
645 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
646 			    acpi_install_address_space_handler(acpi_handle
647 							       device,
648 							       acpi_adr_space_type
649 							       space_id,
650 							       acpi_adr_space_handler
651 							       handler,
652 							       acpi_adr_space_setup
653 							       setup,
654 							       void *context))
655 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
656 			    acpi_install_address_space_handler_no_reg
657 			    (acpi_handle device, acpi_adr_space_type space_id,
658 			     acpi_adr_space_handler handler,
659 			     acpi_adr_space_setup setup,
660 			     void *context))
661 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
662 			    acpi_execute_reg_methods(acpi_handle device,
663 						     u32 nax_depth,
664 						     acpi_adr_space_type
665 						     space_id))
666 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
667 			    acpi_remove_address_space_handler(acpi_handle
668 							      device,
669 							      acpi_adr_space_type
670 							      space_id,
671 							      acpi_adr_space_handler
672 							      handler))
673 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
674 			    acpi_install_exception_handler
675 			    (acpi_exception_handler handler))
676 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
677 			    acpi_install_interface_handler
678 			    (acpi_interface_handler handler))
679 
680 /*
681  * Global Lock interfaces
682  */
683 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
684 				acpi_acquire_global_lock(u16 timeout,
685 							 u32 *handle))
686 
687 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
688 				acpi_release_global_lock(u32 handle))
689 
690 /*
691  * Interfaces to AML mutex objects
692  */
693 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
694 			    acpi_acquire_mutex(acpi_handle handle,
695 					       acpi_string pathname,
696 					       u16 timeout))
697 
698 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
699 			    acpi_release_mutex(acpi_handle handle,
700 					       acpi_string pathname))
701 
702 /*
703  * Fixed Event interfaces
704  */
705 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
706 				acpi_enable_event(u32 event, u32 flags))
707 
708 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
709 				acpi_disable_event(u32 event, u32 flags))
710 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_clear_event(u32 event))
711 
712 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
713 				acpi_get_event_status(u32 event,
714 						      acpi_event_status
715 						      *event_status))
716 
717 /*
718  * General Purpose Event (GPE) Interfaces
719  */
720 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_update_all_gpes(void))
721 
722 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
723 				acpi_enable_gpe(acpi_handle gpe_device,
724 						u32 gpe_number))
725 
726 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
727 				acpi_disable_gpe(acpi_handle gpe_device,
728 						 u32 gpe_number))
729 
730 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
731 				acpi_clear_gpe(acpi_handle gpe_device,
732 					       u32 gpe_number))
733 
734 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
735 				acpi_set_gpe(acpi_handle gpe_device,
736 					     u32 gpe_number, u8 action))
737 
738 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
739 				acpi_finish_gpe(acpi_handle gpe_device,
740 						u32 gpe_number))
741 
742 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
743 				acpi_mask_gpe(acpi_handle gpe_device,
744 					      u32 gpe_number, u8 is_masked))
745 
746 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
747 				acpi_mark_gpe_for_wake(acpi_handle gpe_device,
748 						       u32 gpe_number))
749 
750 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
751 				acpi_setup_gpe_for_wake(acpi_handle
752 							parent_device,
753 							acpi_handle gpe_device,
754 							u32 gpe_number))
755 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
756 				 acpi_set_gpe_wake_mask(acpi_handle gpe_device,
757 							u32 gpe_number,
758 							u8 action))
759 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
760 				 acpi_get_gpe_status(acpi_handle gpe_device,
761 						     u32 gpe_number,
762 						     acpi_event_status
763 						     *event_status))
764 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
765 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_hw_disable_all_gpes(void))
766 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
767 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
768 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
769 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_any_gpe_status_set(u32 gpe_skip_number))
770 ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_any_fixed_event_status_set(void))
771 
772 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
773 				acpi_get_gpe_device(u32 gpe_index,
774 						    acpi_handle *gpe_device))
775 
776 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
777 				acpi_install_gpe_block(acpi_handle gpe_device,
778 						       struct
779 						       acpi_generic_address
780 						       *gpe_block_address,
781 						       u32 register_count,
782 						       u32 interrupt_number))
783 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
784 				 acpi_remove_gpe_block(acpi_handle gpe_device))
785 
786 /*
787  * Resource interfaces
788  */
789 typedef
790 acpi_status (*acpi_walk_resource_callback) (struct acpi_resource * resource,
791 					    void *context);
792 
793 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
794 			    acpi_get_vendor_resource(acpi_handle device,
795 						     char *name,
796 						     struct acpi_vendor_uuid
797 						     *uuid,
798 						     struct acpi_buffer
799 						     *ret_buffer))
800 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
801 			     acpi_get_current_resources(acpi_handle device,
802 							struct acpi_buffer
803 							*ret_buffer))
804 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
805 			     acpi_get_possible_resources(acpi_handle device,
806 							 struct acpi_buffer
807 							 *ret_buffer))
808 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
809 			     acpi_get_event_resources(acpi_handle device_handle,
810 						      struct acpi_buffer
811 						      *ret_buffer))
812 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
813 			     acpi_walk_resource_buffer(struct acpi_buffer
814 						       *buffer,
815 						       acpi_walk_resource_callback
816 						       user_function,
817 						       void *context))
818 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
819 			     acpi_walk_resources(acpi_handle device, char *name,
820 						 acpi_walk_resource_callback
821 						 user_function, void *context))
822 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
823 			     acpi_set_current_resources(acpi_handle device,
824 							struct acpi_buffer
825 							*in_buffer))
826 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
827 			     acpi_get_irq_routing_table(acpi_handle device,
828 							struct acpi_buffer
829 							*ret_buffer))
830 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
831 			     acpi_resource_to_address64(struct acpi_resource
832 							*resource,
833 							struct
834 							acpi_resource_address64
835 							*out))
836 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
837 			     acpi_buffer_to_resource(u8 *aml_buffer,
838 						     u16 aml_buffer_length,
839 						     struct acpi_resource
840 						     **resource_ptr))
841 
842 /*
843  * Hardware (ACPI device) interfaces
844  */
845 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_reset(void))
846 
847 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
848 			    acpi_read(u64 *value,
849 				      struct acpi_generic_address *reg))
850 
851 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
852 			    acpi_write(u64 value,
853 				       struct acpi_generic_address *reg))
854 
855 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
856 				acpi_read_bit_register(u32 register_id,
857 						       u32 *return_value))
858 
859 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
860 				acpi_write_bit_register(u32 register_id,
861 							u32 value))
862 
863 /*
864  * Sleep/Wake interfaces
865  */
866 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
867 			    acpi_get_sleep_type_data(u8 sleep_state,
868 						     u8 *slp_typ_a,
869 						     u8 *slp_typ_b))
870 
871 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
872 			    acpi_enter_sleep_state_prep(u8 sleep_state))
873 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_enter_sleep_state(u8 sleep_state))
874 
875 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enter_sleep_state_s4bios(void))
876 
877 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
878 			    acpi_leave_sleep_state_prep(u8 sleep_state))
879 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_leave_sleep_state(u8 sleep_state))
880 
881 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
882 				acpi_set_firmware_waking_vector
883 				(acpi_physical_address physical_address,
884 				 acpi_physical_address physical_address64))
885 /*
886  * ACPI Timer interfaces
887  */
888 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
889 				acpi_get_timer_resolution(u32 *resolution))
890 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks))
891 
892 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
893 				acpi_get_timer_duration(u32 start_ticks,
894 							u32 end_ticks,
895 							u32 *time_elapsed))
896 
897 /*
898  * Error/Warning output
899  */
900 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
901 			       void ACPI_INTERNAL_VAR_XFACE
902 			       acpi_error(const char *module_name,
903 					  u32 line_number,
904 					  const char *format, ...))
905 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
906 				void ACPI_INTERNAL_VAR_XFACE
907 				acpi_exception(const char *module_name,
908 					       u32 line_number,
909 					       acpi_status status,
910 					       const char *format, ...))
911 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
912 				void ACPI_INTERNAL_VAR_XFACE
913 				acpi_warning(const char *module_name,
914 					     u32 line_number,
915 					     const char *format, ...))
916 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
917 				void ACPI_INTERNAL_VAR_XFACE
918 				acpi_info(const char *format, ...))
919 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
920 				void ACPI_INTERNAL_VAR_XFACE
921 				acpi_bios_error(const char *module_name,
922 						u32 line_number,
923 						const char *format, ...))
924 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
925 				void ACPI_INTERNAL_VAR_XFACE
926 				acpi_bios_exception(const char *module_name,
927 						    u32 line_number,
928 						    acpi_status status,
929 						    const char *format, ...))
930 ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
931 				void ACPI_INTERNAL_VAR_XFACE
932 				acpi_bios_warning(const char *module_name,
933 						  u32 line_number,
934 						  const char *format, ...))
935 
936 /*
937  * Debug output
938  */
939 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
940 			       void ACPI_INTERNAL_VAR_XFACE
941 			       acpi_debug_print(u32 requested_debug_level,
942 						u32 line_number,
943 						const char *function_name,
944 						const char *module_name,
945 						u32 component_id,
946 						const char *format, ...))
947 ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
948 				void ACPI_INTERNAL_VAR_XFACE
949 				acpi_debug_print_raw(u32 requested_debug_level,
950 						     u32 line_number,
951 						     const char *function_name,
952 						     const char *module_name,
953 						     u32 component_id,
954 						     const char *format, ...))
955 
956 ACPI_DBG_DEPENDENT_RETURN_VOID(void
957 			       acpi_trace_point(acpi_trace_event_type type,
958 						u8 begin,
959 						u8 *aml, char *pathname))
960 
961 acpi_status acpi_initialize_debugger(void);
962 
963 void acpi_terminate_debugger(void);
964 
965 /*
966  * Divergences
967  */
968 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
969 			    acpi_get_data_full(acpi_handle object,
970 					       acpi_object_handler handler,
971 					       void **data,
972 					       void (*callback)(void *)))
973 
974 void acpi_set_debugger_thread_id(acpi_thread_id thread_id);
975 
976 #endif				/* __ACXFACE_H__ */
977