1 | /* |
2 | * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $) |
3 | * |
4 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> |
5 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
6 | * |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or (at |
12 | * your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, but |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | * General Public License for more details. |
18 | * |
19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
20 | */ |
21 | |
22 | #ifndef __ACPI_BUS_H__ |
23 | #define __ACPI_BUS_H__ |
24 | |
25 | #include <linux/device.h> |
26 | #include <linux/property.h> |
27 | |
28 | /* TBD: Make dynamic */ |
29 | #define ACPI_MAX_HANDLES 10 |
30 | struct acpi_handle_list { |
31 | u32 count; |
32 | acpi_handle handles[ACPI_MAX_HANDLES]; |
33 | }; |
34 | |
35 | /* acpi_utils.h */ |
36 | acpi_status |
37 | (union acpi_object *package, |
38 | struct acpi_buffer *format, struct acpi_buffer *buffer); |
39 | acpi_status |
40 | acpi_evaluate_integer(acpi_handle handle, |
41 | acpi_string pathname, |
42 | struct acpi_object_list *arguments, unsigned long long *data); |
43 | acpi_status |
44 | acpi_evaluate_reference(acpi_handle handle, |
45 | acpi_string pathname, |
46 | struct acpi_object_list *arguments, |
47 | struct acpi_handle_list *list); |
48 | acpi_status |
49 | acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, |
50 | struct acpi_buffer *status_buf); |
51 | |
52 | acpi_status |
53 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
54 | |
55 | bool acpi_has_method(acpi_handle handle, char *name); |
56 | acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, |
57 | u64 arg); |
58 | acpi_status acpi_evaluate_ej0(acpi_handle handle); |
59 | acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); |
60 | bool acpi_ata_match(acpi_handle handle); |
61 | bool acpi_bay_match(acpi_handle handle); |
62 | bool acpi_dock_match(acpi_handle handle); |
63 | |
64 | bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs); |
65 | union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, |
66 | u64 rev, u64 func, union acpi_object *argv4); |
67 | |
68 | static inline union acpi_object * |
69 | acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, |
70 | u64 func, union acpi_object *argv4, |
71 | acpi_object_type type) |
72 | { |
73 | union acpi_object *obj; |
74 | |
75 | obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4); |
76 | if (obj && obj->type != type) { |
77 | ACPI_FREE(obj); |
78 | obj = NULL; |
79 | } |
80 | |
81 | return obj; |
82 | } |
83 | |
84 | #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ |
85 | { \ |
86 | .package.type = ACPI_TYPE_PACKAGE, \ |
87 | .package.count = (cnt), \ |
88 | .package.elements = (eles) \ |
89 | } |
90 | |
91 | bool acpi_dev_found(const char *hid); |
92 | bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); |
93 | |
94 | const char * |
95 | acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv); |
96 | |
97 | #ifdef CONFIG_ACPI |
98 | |
99 | #include <linux/proc_fs.h> |
100 | |
101 | #define ACPI_BUS_FILE_ROOT "acpi" |
102 | extern struct proc_dir_entry *acpi_root_dir; |
103 | |
104 | enum acpi_bus_device_type { |
105 | ACPI_BUS_TYPE_DEVICE = 0, |
106 | ACPI_BUS_TYPE_POWER, |
107 | ACPI_BUS_TYPE_PROCESSOR, |
108 | ACPI_BUS_TYPE_THERMAL, |
109 | ACPI_BUS_TYPE_POWER_BUTTON, |
110 | ACPI_BUS_TYPE_SLEEP_BUTTON, |
111 | ACPI_BUS_TYPE_ECDT_EC, |
112 | ACPI_BUS_DEVICE_TYPE_COUNT |
113 | }; |
114 | |
115 | struct acpi_driver; |
116 | struct acpi_device; |
117 | |
118 | /* |
119 | * ACPI Scan Handler |
120 | * ----------------- |
121 | */ |
122 | |
123 | struct acpi_hotplug_profile { |
124 | struct kobject kobj; |
125 | int (*scan_dependent)(struct acpi_device *adev); |
126 | void (*notify_online)(struct acpi_device *adev); |
127 | bool enabled:1; |
128 | bool demand_offline:1; |
129 | }; |
130 | |
131 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( |
132 | struct kobject *kobj) |
133 | { |
134 | return container_of(kobj, struct acpi_hotplug_profile, kobj); |
135 | } |
136 | |
137 | struct acpi_scan_handler { |
138 | const struct acpi_device_id *ids; |
139 | struct list_head list_node; |
140 | bool (*match)(const char *idstr, const struct acpi_device_id **matchid); |
141 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); |
142 | void (*detach)(struct acpi_device *dev); |
143 | void (*bind)(struct device *phys_dev); |
144 | void (*unbind)(struct device *phys_dev); |
145 | struct acpi_hotplug_profile hotplug; |
146 | }; |
147 | |
148 | /* |
149 | * ACPI Hotplug Context |
150 | * -------------------- |
151 | */ |
152 | |
153 | struct acpi_hotplug_context { |
154 | struct acpi_device *self; |
155 | int (*notify)(struct acpi_device *, u32); |
156 | void (*uevent)(struct acpi_device *, u32); |
157 | void (*fixup)(struct acpi_device *); |
158 | }; |
159 | |
160 | /* |
161 | * ACPI Driver |
162 | * ----------- |
163 | */ |
164 | |
165 | typedef int (*acpi_op_add) (struct acpi_device * device); |
166 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
167 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
168 | |
169 | struct acpi_device_ops { |
170 | acpi_op_add add; |
171 | acpi_op_remove remove; |
172 | acpi_op_notify notify; |
173 | }; |
174 | |
175 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
176 | |
177 | struct acpi_driver { |
178 | char name[80]; |
179 | char class[80]; |
180 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
181 | unsigned int flags; |
182 | struct acpi_device_ops ops; |
183 | struct device_driver drv; |
184 | struct module *owner; |
185 | }; |
186 | |
187 | /* |
188 | * ACPI Device |
189 | * ----------- |
190 | */ |
191 | |
192 | /* Status (_STA) */ |
193 | |
194 | struct acpi_device_status { |
195 | u32 present:1; |
196 | u32 enabled:1; |
197 | u32 show_in_ui:1; |
198 | u32 functional:1; |
199 | u32 battery_present:1; |
200 | u32 reserved:27; |
201 | }; |
202 | |
203 | /* Flags */ |
204 | |
205 | struct acpi_device_flags { |
206 | u32 dynamic_status:1; |
207 | u32 removable:1; |
208 | u32 ejectable:1; |
209 | u32 power_manageable:1; |
210 | u32 match_driver:1; |
211 | u32 initialized:1; |
212 | u32 visited:1; |
213 | u32 hotplug_notify:1; |
214 | u32 is_dock_station:1; |
215 | u32 of_compatible_ok:1; |
216 | u32 coherent_dma:1; |
217 | u32 cca_seen:1; |
218 | u32 enumeration_by_parent:1; |
219 | u32 reserved:19; |
220 | }; |
221 | |
222 | /* File System */ |
223 | |
224 | struct acpi_device_dir { |
225 | struct proc_dir_entry *entry; |
226 | }; |
227 | |
228 | #define acpi_device_dir(d) ((d)->dir.entry) |
229 | |
230 | /* Plug and Play */ |
231 | |
232 | typedef char acpi_bus_id[8]; |
233 | typedef unsigned long acpi_bus_address; |
234 | typedef char acpi_device_name[40]; |
235 | typedef char acpi_device_class[20]; |
236 | |
237 | struct acpi_hardware_id { |
238 | struct list_head list; |
239 | const char *id; |
240 | }; |
241 | |
242 | struct acpi_pnp_type { |
243 | u32 hardware_id:1; |
244 | u32 bus_address:1; |
245 | u32 platform_id:1; |
246 | u32 reserved:29; |
247 | }; |
248 | |
249 | struct acpi_device_pnp { |
250 | acpi_bus_id bus_id; /* Object name */ |
251 | struct acpi_pnp_type type; /* ID type */ |
252 | acpi_bus_address bus_address; /* _ADR */ |
253 | char *unique_id; /* _UID */ |
254 | struct list_head ids; /* _HID and _CIDs */ |
255 | acpi_device_name device_name; /* Driver-determined */ |
256 | acpi_device_class device_class; /* " */ |
257 | union acpi_object *str_obj; /* unicode string for _STR method */ |
258 | }; |
259 | |
260 | #define acpi_device_bid(d) ((d)->pnp.bus_id) |
261 | #define acpi_device_adr(d) ((d)->pnp.bus_address) |
262 | const char *acpi_device_hid(struct acpi_device *device); |
263 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
264 | #define acpi_device_name(d) ((d)->pnp.device_name) |
265 | #define acpi_device_class(d) ((d)->pnp.device_class) |
266 | |
267 | /* Power Management */ |
268 | |
269 | struct acpi_device_power_flags { |
270 | u32 explicit_get:1; /* _PSC present? */ |
271 | u32 power_resources:1; /* Power resources */ |
272 | u32 inrush_current:1; /* Serialize Dx->D0 */ |
273 | u32 power_removed:1; /* Optimize Dx->D0 */ |
274 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
275 | u32 dsw_present:1; /* _DSW present? */ |
276 | u32 reserved:26; |
277 | }; |
278 | |
279 | struct acpi_device_power_state { |
280 | struct { |
281 | u8 valid:1; |
282 | u8 explicit_set:1; /* _PSx present? */ |
283 | u8 reserved:6; |
284 | } flags; |
285 | int power; /* % Power (compared to D0) */ |
286 | int latency; /* Dx->D0 time (microseconds) */ |
287 | struct list_head resources; /* Power resources referenced */ |
288 | }; |
289 | |
290 | struct acpi_device_power { |
291 | int state; /* Current state */ |
292 | struct acpi_device_power_flags flags; |
293 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
294 | }; |
295 | |
296 | /* Performance Management */ |
297 | |
298 | struct acpi_device_perf_flags { |
299 | u8 reserved:8; |
300 | }; |
301 | |
302 | struct acpi_device_perf_state { |
303 | struct { |
304 | u8 valid:1; |
305 | u8 reserved:7; |
306 | } flags; |
307 | u8 power; /* % Power (compared to P0) */ |
308 | u8 performance; /* % Performance ( " ) */ |
309 | int latency; /* Px->P0 time (microseconds) */ |
310 | }; |
311 | |
312 | struct acpi_device_perf { |
313 | int state; |
314 | struct acpi_device_perf_flags flags; |
315 | int state_count; |
316 | struct acpi_device_perf_state *states; |
317 | }; |
318 | |
319 | /* Wakeup Management */ |
320 | struct acpi_device_wakeup_flags { |
321 | u8 valid:1; /* Can successfully enable wakeup? */ |
322 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
323 | }; |
324 | |
325 | struct acpi_device_wakeup_context { |
326 | void (*func)(struct acpi_device_wakeup_context *context); |
327 | struct device *dev; |
328 | }; |
329 | |
330 | struct acpi_device_wakeup { |
331 | acpi_handle gpe_device; |
332 | u64 gpe_number; |
333 | u64 sleep_state; |
334 | struct list_head resources; |
335 | struct acpi_device_wakeup_flags flags; |
336 | struct acpi_device_wakeup_context context; |
337 | struct wakeup_source *ws; |
338 | int prepare_count; |
339 | int enable_count; |
340 | }; |
341 | |
342 | struct acpi_device_physical_node { |
343 | unsigned int node_id; |
344 | struct list_head node; |
345 | struct device *dev; |
346 | bool put_online:1; |
347 | }; |
348 | |
349 | struct acpi_device_properties { |
350 | const guid_t *guid; |
351 | const union acpi_object *properties; |
352 | struct list_head list; |
353 | }; |
354 | |
355 | /* ACPI Device Specific Data (_DSD) */ |
356 | struct acpi_device_data { |
357 | const union acpi_object *pointer; |
358 | struct list_head properties; |
359 | const union acpi_object *of_compatible; |
360 | struct list_head subnodes; |
361 | }; |
362 | |
363 | struct acpi_gpio_mapping; |
364 | |
365 | /* Device */ |
366 | struct acpi_device { |
367 | int device_type; |
368 | acpi_handle handle; /* no handle for fixed hardware */ |
369 | struct fwnode_handle fwnode; |
370 | struct acpi_device *parent; |
371 | struct list_head children; |
372 | struct list_head node; |
373 | struct list_head wakeup_list; |
374 | struct list_head del_list; |
375 | struct acpi_device_status status; |
376 | struct acpi_device_flags flags; |
377 | struct acpi_device_pnp pnp; |
378 | struct acpi_device_power power; |
379 | struct acpi_device_wakeup wakeup; |
380 | struct acpi_device_perf performance; |
381 | struct acpi_device_dir dir; |
382 | struct acpi_device_data data; |
383 | struct acpi_scan_handler *handler; |
384 | struct acpi_hotplug_context *hp; |
385 | struct acpi_driver *driver; |
386 | const struct acpi_gpio_mapping *driver_gpios; |
387 | void *driver_data; |
388 | struct device dev; |
389 | unsigned int physical_node_count; |
390 | unsigned int dep_unmet; |
391 | struct list_head physical_node_list; |
392 | struct mutex physical_node_lock; |
393 | void (*remove)(struct acpi_device *); |
394 | }; |
395 | |
396 | /* Non-device subnode */ |
397 | struct acpi_data_node { |
398 | const char *name; |
399 | acpi_handle handle; |
400 | struct fwnode_handle fwnode; |
401 | struct fwnode_handle *parent; |
402 | struct acpi_device_data data; |
403 | struct list_head sibling; |
404 | struct kobject kobj; |
405 | struct completion kobj_done; |
406 | }; |
407 | |
408 | extern const struct fwnode_operations acpi_device_fwnode_ops; |
409 | extern const struct fwnode_operations acpi_data_fwnode_ops; |
410 | extern const struct fwnode_operations acpi_static_fwnode_ops; |
411 | |
412 | bool is_acpi_device_node(const struct fwnode_handle *fwnode); |
413 | bool is_acpi_data_node(const struct fwnode_handle *fwnode); |
414 | |
415 | static inline bool is_acpi_node(const struct fwnode_handle *fwnode) |
416 | { |
417 | return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode)); |
418 | } |
419 | |
420 | #define to_acpi_device_node(__fwnode) \ |
421 | ({ \ |
422 | typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \ |
423 | \ |
424 | is_acpi_device_node(__to_acpi_device_node_fwnode) ? \ |
425 | container_of(__to_acpi_device_node_fwnode, \ |
426 | struct acpi_device, fwnode) : \ |
427 | NULL; \ |
428 | }) |
429 | |
430 | #define to_acpi_data_node(__fwnode) \ |
431 | ({ \ |
432 | typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \ |
433 | \ |
434 | is_acpi_data_node(__to_acpi_data_node_fwnode) ? \ |
435 | container_of(__to_acpi_data_node_fwnode, \ |
436 | struct acpi_data_node, fwnode) : \ |
437 | NULL; \ |
438 | }) |
439 | |
440 | static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode) |
441 | { |
442 | return !IS_ERR_OR_NULL(fwnode) && |
443 | fwnode->ops == &acpi_static_fwnode_ops; |
444 | } |
445 | |
446 | static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, |
447 | const char *name) |
448 | { |
449 | return is_acpi_data_node(fwnode) ? |
450 | (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; |
451 | } |
452 | |
453 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) |
454 | { |
455 | return &adev->fwnode; |
456 | } |
457 | |
458 | static inline void *acpi_driver_data(struct acpi_device *d) |
459 | { |
460 | return d->driver_data; |
461 | } |
462 | |
463 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
464 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) |
465 | |
466 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
467 | { |
468 | *((u32 *)&adev->status) = sta; |
469 | } |
470 | |
471 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
472 | struct acpi_hotplug_context *hp) |
473 | { |
474 | hp->self = adev; |
475 | adev->hp = hp; |
476 | } |
477 | |
478 | void acpi_initialize_hp_context(struct acpi_device *adev, |
479 | struct acpi_hotplug_context *hp, |
480 | int (*notify)(struct acpi_device *, u32), |
481 | void (*uevent)(struct acpi_device *, u32)); |
482 | |
483 | /* acpi_device.dev.bus == &acpi_bus_type */ |
484 | extern struct bus_type acpi_bus_type; |
485 | |
486 | /* |
487 | * Events |
488 | * ------ |
489 | */ |
490 | |
491 | struct acpi_bus_event { |
492 | struct list_head node; |
493 | acpi_device_class device_class; |
494 | acpi_bus_id bus_id; |
495 | u32 type; |
496 | u32 data; |
497 | }; |
498 | |
499 | extern struct kobject *acpi_kobj; |
500 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
501 | void acpi_bus_private_data_handler(acpi_handle, void *); |
502 | int acpi_bus_get_private_data(acpi_handle, void **); |
503 | int acpi_bus_attach_private_data(acpi_handle, void *); |
504 | void acpi_bus_detach_private_data(acpi_handle); |
505 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
506 | extern int register_acpi_notifier(struct notifier_block *); |
507 | extern int unregister_acpi_notifier(struct notifier_block *); |
508 | |
509 | /* |
510 | * External Functions |
511 | */ |
512 | |
513 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); |
514 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
515 | void acpi_bus_put_acpi_device(struct acpi_device *adev); |
516 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
517 | unsigned long long *sta); |
518 | int acpi_bus_get_status(struct acpi_device *device); |
519 | |
520 | int acpi_bus_set_power(acpi_handle handle, int state); |
521 | const char *acpi_power_state_string(int state); |
522 | int acpi_device_get_power(struct acpi_device *device, int *state); |
523 | int acpi_device_set_power(struct acpi_device *device, int state); |
524 | int acpi_bus_init_power(struct acpi_device *device); |
525 | int acpi_device_fix_up_power(struct acpi_device *device); |
526 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
527 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
528 | bool acpi_bus_power_manageable(acpi_handle handle); |
529 | |
530 | #ifdef CONFIG_PM |
531 | bool acpi_bus_can_wakeup(acpi_handle handle); |
532 | #else |
533 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } |
534 | #endif |
535 | |
536 | void acpi_scan_lock_acquire(void); |
537 | void acpi_scan_lock_release(void); |
538 | void acpi_lock_hp_context(void); |
539 | void acpi_unlock_hp_context(void); |
540 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
541 | int acpi_bus_register_driver(struct acpi_driver *driver); |
542 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
543 | int acpi_bus_scan(acpi_handle handle); |
544 | void acpi_bus_trim(struct acpi_device *start); |
545 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
546 | int acpi_match_device_ids(struct acpi_device *device, |
547 | const struct acpi_device_id *ids); |
548 | void acpi_set_modalias(struct acpi_device *adev, const char *default_id, |
549 | char *modalias, size_t len); |
550 | int acpi_create_dir(struct acpi_device *); |
551 | void acpi_remove_dir(struct acpi_device *); |
552 | |
553 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
554 | { |
555 | return adev && adev->flags.initialized && adev->flags.visited; |
556 | } |
557 | |
558 | /** |
559 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver |
560 | * @__acpi_driver: acpi_driver struct |
561 | * |
562 | * Helper macro for ACPI drivers which do not do anything special in module |
563 | * init/exit. This eliminates a lot of boilerplate. Each module may only |
564 | * use this macro once, and calling it replaces module_init() and module_exit() |
565 | */ |
566 | #define module_acpi_driver(__acpi_driver) \ |
567 | module_driver(__acpi_driver, acpi_bus_register_driver, \ |
568 | acpi_bus_unregister_driver) |
569 | |
570 | /* |
571 | * Bind physical devices with ACPI devices |
572 | */ |
573 | struct acpi_bus_type { |
574 | struct list_head list; |
575 | const char *name; |
576 | bool (*match)(struct device *dev); |
577 | struct acpi_device * (*find_companion)(struct device *); |
578 | void (*setup)(struct device *); |
579 | void (*cleanup)(struct device *); |
580 | }; |
581 | int register_acpi_bus_type(struct acpi_bus_type *); |
582 | int unregister_acpi_bus_type(struct acpi_bus_type *); |
583 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
584 | int acpi_unbind_one(struct device *dev); |
585 | |
586 | struct acpi_pci_root { |
587 | struct acpi_device * device; |
588 | struct pci_bus *bus; |
589 | u16 segment; |
590 | struct resource secondary; /* downstream bus range */ |
591 | |
592 | u32 osc_support_set; /* _OSC state of support bits */ |
593 | u32 osc_control_set; /* _OSC state of control bits */ |
594 | phys_addr_t mcfg_addr; |
595 | }; |
596 | |
597 | /* helper */ |
598 | |
599 | bool acpi_dma_supported(struct acpi_device *adev); |
600 | enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); |
601 | int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, |
602 | u64 *size); |
603 | int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); |
604 | |
605 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, |
606 | u64 address, bool check_children); |
607 | int acpi_is_root_bridge(acpi_handle); |
608 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
609 | |
610 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
611 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); |
612 | |
613 | #ifdef CONFIG_X86 |
614 | bool acpi_device_always_present(struct acpi_device *adev); |
615 | #else |
616 | static inline bool acpi_device_always_present(struct acpi_device *adev) |
617 | { |
618 | return false; |
619 | } |
620 | #endif |
621 | |
622 | #ifdef CONFIG_PM |
623 | void acpi_pm_wakeup_event(struct device *dev); |
624 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
625 | void (*func)(struct acpi_device_wakeup_context *context)); |
626 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); |
627 | bool acpi_pm_device_can_wakeup(struct device *dev); |
628 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
629 | int acpi_pm_set_device_wakeup(struct device *dev, bool enable); |
630 | int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable); |
631 | #else |
632 | static inline void acpi_pm_wakeup_event(struct device *dev) |
633 | { |
634 | } |
635 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
636 | struct device *dev, |
637 | void (*func)(struct acpi_device_wakeup_context *context)) |
638 | { |
639 | return AE_SUPPORT; |
640 | } |
641 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) |
642 | { |
643 | return AE_SUPPORT; |
644 | } |
645 | static inline bool acpi_pm_device_can_wakeup(struct device *dev) |
646 | { |
647 | return false; |
648 | } |
649 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
650 | { |
651 | if (p) |
652 | *p = ACPI_STATE_D0; |
653 | |
654 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
655 | m : ACPI_STATE_D0; |
656 | } |
657 | static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable) |
658 | { |
659 | return -ENODEV; |
660 | } |
661 | static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable) |
662 | { |
663 | return -ENODEV; |
664 | } |
665 | #endif |
666 | |
667 | #ifdef CONFIG_ACPI_SLEEP |
668 | u32 acpi_target_system_state(void); |
669 | #else |
670 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } |
671 | #endif |
672 | |
673 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
674 | { |
675 | return adev->flags.power_manageable; |
676 | } |
677 | |
678 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) |
679 | { |
680 | return adev->wakeup.flags.valid; |
681 | } |
682 | |
683 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
684 | { |
685 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || |
686 | ((acpi_gbl_FADT.header.revision < 6) && |
687 | adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); |
688 | } |
689 | |
690 | #else /* CONFIG_ACPI */ |
691 | |
692 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
693 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } |
694 | |
695 | #endif /* CONFIG_ACPI */ |
696 | |
697 | #endif /*__ACPI_BUS_H__*/ |
698 | |