]>
Commit | Line | Data |
---|---|---|
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 | acpi_extract_package(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 | #ifdef CONFIG_ACPI | |
95 | ||
96 | #include <linux/proc_fs.h> | |
97 | ||
98 | #define ACPI_BUS_FILE_ROOT "acpi" | |
99 | extern struct proc_dir_entry *acpi_root_dir; | |
100 | ||
101 | enum acpi_bus_device_type { | |
102 | ACPI_BUS_TYPE_DEVICE = 0, | |
103 | ACPI_BUS_TYPE_POWER, | |
104 | ACPI_BUS_TYPE_PROCESSOR, | |
105 | ACPI_BUS_TYPE_THERMAL, | |
106 | ACPI_BUS_TYPE_POWER_BUTTON, | |
107 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
108 | ACPI_BUS_DEVICE_TYPE_COUNT | |
109 | }; | |
110 | ||
111 | struct acpi_driver; | |
112 | struct acpi_device; | |
113 | ||
114 | /* | |
115 | * ACPI Scan Handler | |
116 | * ----------------- | |
117 | */ | |
118 | ||
119 | struct acpi_hotplug_profile { | |
120 | struct kobject kobj; | |
121 | int (*scan_dependent)(struct acpi_device *adev); | |
122 | void (*notify_online)(struct acpi_device *adev); | |
123 | bool enabled:1; | |
124 | bool demand_offline:1; | |
125 | }; | |
126 | ||
127 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( | |
128 | struct kobject *kobj) | |
129 | { | |
130 | return container_of(kobj, struct acpi_hotplug_profile, kobj); | |
131 | } | |
132 | ||
133 | struct acpi_scan_handler { | |
134 | const struct acpi_device_id *ids; | |
135 | struct list_head list_node; | |
136 | bool (*match)(const char *idstr, const struct acpi_device_id **matchid); | |
137 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); | |
138 | void (*detach)(struct acpi_device *dev); | |
139 | void (*bind)(struct device *phys_dev); | |
140 | void (*unbind)(struct device *phys_dev); | |
141 | struct acpi_hotplug_profile hotplug; | |
142 | }; | |
143 | ||
144 | /* | |
145 | * ACPI Hotplug Context | |
146 | * -------------------- | |
147 | */ | |
148 | ||
149 | struct acpi_hotplug_context { | |
150 | struct acpi_device *self; | |
151 | int (*notify)(struct acpi_device *, u32); | |
152 | void (*uevent)(struct acpi_device *, u32); | |
153 | void (*fixup)(struct acpi_device *); | |
154 | }; | |
155 | ||
156 | /* | |
157 | * ACPI Driver | |
158 | * ----------- | |
159 | */ | |
160 | ||
161 | typedef int (*acpi_op_add) (struct acpi_device * device); | |
162 | typedef int (*acpi_op_remove) (struct acpi_device * device); | |
163 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); | |
164 | ||
165 | struct acpi_device_ops { | |
166 | acpi_op_add add; | |
167 | acpi_op_remove remove; | |
168 | acpi_op_notify notify; | |
169 | }; | |
170 | ||
171 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ | |
172 | ||
173 | struct acpi_driver { | |
174 | char name[80]; | |
175 | char class[80]; | |
176 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ | |
177 | unsigned int flags; | |
178 | struct acpi_device_ops ops; | |
179 | struct device_driver drv; | |
180 | struct module *owner; | |
181 | }; | |
182 | ||
183 | /* | |
184 | * ACPI Device | |
185 | * ----------- | |
186 | */ | |
187 | ||
188 | /* Status (_STA) */ | |
189 | ||
190 | struct acpi_device_status { | |
191 | u32 present:1; | |
192 | u32 enabled:1; | |
193 | u32 show_in_ui:1; | |
194 | u32 functional:1; | |
195 | u32 battery_present:1; | |
196 | u32 reserved:27; | |
197 | }; | |
198 | ||
199 | /* Flags */ | |
200 | ||
201 | struct acpi_device_flags { | |
202 | u32 dynamic_status:1; | |
203 | u32 removable:1; | |
204 | u32 ejectable:1; | |
205 | u32 power_manageable:1; | |
206 | u32 match_driver:1; | |
207 | u32 initialized:1; | |
208 | u32 visited:1; | |
209 | u32 hotplug_notify:1; | |
210 | u32 is_dock_station:1; | |
211 | u32 of_compatible_ok:1; | |
212 | u32 coherent_dma:1; | |
213 | u32 cca_seen:1; | |
214 | u32 spi_i2c_slave:1; | |
215 | u32 reserved:19; | |
216 | }; | |
217 | ||
218 | /* File System */ | |
219 | ||
220 | struct acpi_device_dir { | |
221 | struct proc_dir_entry *entry; | |
222 | }; | |
223 | ||
224 | #define acpi_device_dir(d) ((d)->dir.entry) | |
225 | ||
226 | /* Plug and Play */ | |
227 | ||
228 | typedef char acpi_bus_id[8]; | |
229 | typedef unsigned long acpi_bus_address; | |
230 | typedef char acpi_device_name[40]; | |
231 | typedef char acpi_device_class[20]; | |
232 | ||
233 | struct acpi_hardware_id { | |
234 | struct list_head list; | |
235 | const char *id; | |
236 | }; | |
237 | ||
238 | struct acpi_pnp_type { | |
239 | u32 hardware_id:1; | |
240 | u32 bus_address:1; | |
241 | u32 platform_id:1; | |
242 | u32 reserved:29; | |
243 | }; | |
244 | ||
245 | struct acpi_device_pnp { | |
246 | acpi_bus_id bus_id; /* Object name */ | |
247 | struct acpi_pnp_type type; /* ID type */ | |
248 | acpi_bus_address bus_address; /* _ADR */ | |
249 | char *unique_id; /* _UID */ | |
250 | struct list_head ids; /* _HID and _CIDs */ | |
251 | acpi_device_name device_name; /* Driver-determined */ | |
252 | acpi_device_class device_class; /* " */ | |
253 | union acpi_object *str_obj; /* unicode string for _STR method */ | |
254 | }; | |
255 | ||
256 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
257 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
258 | const char *acpi_device_hid(struct acpi_device *device); | |
259 | #define acpi_device_uid(d) ((d)->pnp.unique_id) | |
260 | #define acpi_device_name(d) ((d)->pnp.device_name) | |
261 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
262 | ||
263 | /* Power Management */ | |
264 | ||
265 | struct acpi_device_power_flags { | |
266 | u32 explicit_get:1; /* _PSC present? */ | |
267 | u32 power_resources:1; /* Power resources */ | |
268 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
269 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
270 | u32 ignore_parent:1; /* Power is independent of parent power state */ | |
271 | u32 dsw_present:1; /* _DSW present? */ | |
272 | u32 reserved:26; | |
273 | }; | |
274 | ||
275 | struct acpi_device_power_state { | |
276 | struct { | |
277 | u8 valid:1; | |
278 | u8 explicit_set:1; /* _PSx present? */ | |
279 | u8 reserved:6; | |
280 | } flags; | |
281 | int power; /* % Power (compared to D0) */ | |
282 | int latency; /* Dx->D0 time (microseconds) */ | |
283 | struct list_head resources; /* Power resources referenced */ | |
284 | }; | |
285 | ||
286 | struct acpi_device_power { | |
287 | int state; /* Current state */ | |
288 | struct acpi_device_power_flags flags; | |
289 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ | |
290 | }; | |
291 | ||
292 | /* Performance Management */ | |
293 | ||
294 | struct acpi_device_perf_flags { | |
295 | u8 reserved:8; | |
296 | }; | |
297 | ||
298 | struct acpi_device_perf_state { | |
299 | struct { | |
300 | u8 valid:1; | |
301 | u8 reserved:7; | |
302 | } flags; | |
303 | u8 power; /* % Power (compared to P0) */ | |
304 | u8 performance; /* % Performance ( " ) */ | |
305 | int latency; /* Px->P0 time (microseconds) */ | |
306 | }; | |
307 | ||
308 | struct acpi_device_perf { | |
309 | int state; | |
310 | struct acpi_device_perf_flags flags; | |
311 | int state_count; | |
312 | struct acpi_device_perf_state *states; | |
313 | }; | |
314 | ||
315 | /* Wakeup Management */ | |
316 | struct acpi_device_wakeup_flags { | |
317 | u8 valid:1; /* Can successfully enable wakeup? */ | |
318 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ | |
319 | }; | |
320 | ||
321 | struct acpi_device_wakeup_context { | |
322 | void (*func)(struct acpi_device_wakeup_context *context); | |
323 | struct device *dev; | |
324 | }; | |
325 | ||
326 | struct acpi_device_wakeup { | |
327 | acpi_handle gpe_device; | |
328 | u64 gpe_number; | |
329 | u64 sleep_state; | |
330 | struct list_head resources; | |
331 | struct acpi_device_wakeup_flags flags; | |
332 | struct acpi_device_wakeup_context context; | |
333 | struct wakeup_source *ws; | |
334 | int prepare_count; | |
335 | int enable_count; | |
336 | }; | |
337 | ||
338 | struct acpi_device_physical_node { | |
339 | unsigned int node_id; | |
340 | struct list_head node; | |
341 | struct device *dev; | |
342 | bool put_online:1; | |
343 | }; | |
344 | ||
345 | /* ACPI Device Specific Data (_DSD) */ | |
346 | struct acpi_device_data { | |
347 | const union acpi_object *pointer; | |
348 | const union acpi_object *properties; | |
349 | const union acpi_object *of_compatible; | |
350 | struct list_head subnodes; | |
351 | }; | |
352 | ||
353 | struct acpi_gpio_mapping; | |
354 | ||
355 | /* Device */ | |
356 | struct acpi_device { | |
357 | int device_type; | |
358 | acpi_handle handle; /* no handle for fixed hardware */ | |
359 | struct fwnode_handle fwnode; | |
360 | struct acpi_device *parent; | |
361 | struct list_head children; | |
362 | struct list_head node; | |
363 | struct list_head wakeup_list; | |
364 | struct list_head del_list; | |
365 | struct acpi_device_status status; | |
366 | struct acpi_device_flags flags; | |
367 | struct acpi_device_pnp pnp; | |
368 | struct acpi_device_power power; | |
369 | struct acpi_device_wakeup wakeup; | |
370 | struct acpi_device_perf performance; | |
371 | struct acpi_device_dir dir; | |
372 | struct acpi_device_data data; | |
373 | struct acpi_scan_handler *handler; | |
374 | struct acpi_hotplug_context *hp; | |
375 | struct acpi_driver *driver; | |
376 | const struct acpi_gpio_mapping *driver_gpios; | |
377 | void *driver_data; | |
378 | struct device dev; | |
379 | unsigned int physical_node_count; | |
380 | unsigned int dep_unmet; | |
381 | struct list_head physical_node_list; | |
382 | struct mutex physical_node_lock; | |
383 | void (*remove)(struct acpi_device *); | |
384 | }; | |
385 | ||
386 | /* Non-device subnode */ | |
387 | struct acpi_data_node { | |
388 | const char *name; | |
389 | acpi_handle handle; | |
390 | struct fwnode_handle fwnode; | |
391 | struct fwnode_handle *parent; | |
392 | struct acpi_device_data data; | |
393 | struct list_head sibling; | |
394 | struct kobject kobj; | |
395 | struct completion kobj_done; | |
396 | }; | |
397 | ||
398 | extern const struct fwnode_operations acpi_device_fwnode_ops; | |
399 | extern const struct fwnode_operations acpi_data_fwnode_ops; | |
400 | extern const struct fwnode_operations acpi_static_fwnode_ops; | |
401 | ||
402 | bool is_acpi_device_node(const struct fwnode_handle *fwnode); | |
403 | bool is_acpi_data_node(const struct fwnode_handle *fwnode); | |
404 | ||
405 | static inline bool is_acpi_node(const struct fwnode_handle *fwnode) | |
406 | { | |
407 | return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode)); | |
408 | } | |
409 | ||
410 | #define to_acpi_device_node(__fwnode) \ | |
411 | ({ \ | |
412 | typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \ | |
413 | \ | |
414 | is_acpi_device_node(__to_acpi_device_node_fwnode) ? \ | |
415 | container_of(__to_acpi_device_node_fwnode, \ | |
416 | struct acpi_device, fwnode) : \ | |
417 | NULL; \ | |
418 | }) | |
419 | ||
420 | #define to_acpi_data_node(__fwnode) \ | |
421 | ({ \ | |
422 | typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \ | |
423 | \ | |
424 | is_acpi_data_node(__to_acpi_data_node_fwnode) ? \ | |
425 | container_of(__to_acpi_data_node_fwnode, \ | |
426 | struct acpi_data_node, fwnode) : \ | |
427 | NULL; \ | |
428 | }) | |
429 | ||
430 | static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode) | |
431 | { | |
432 | return !IS_ERR_OR_NULL(fwnode) && | |
433 | fwnode->ops == &acpi_static_fwnode_ops; | |
434 | } | |
435 | ||
436 | static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, | |
437 | const char *name) | |
438 | { | |
439 | return is_acpi_data_node(fwnode) ? | |
440 | (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; | |
441 | } | |
442 | ||
443 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) | |
444 | { | |
445 | return &adev->fwnode; | |
446 | } | |
447 | ||
448 | static inline void *acpi_driver_data(struct acpi_device *d) | |
449 | { | |
450 | return d->driver_data; | |
451 | } | |
452 | ||
453 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) | |
454 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
455 | ||
456 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) | |
457 | { | |
458 | *((u32 *)&adev->status) = sta; | |
459 | } | |
460 | ||
461 | static inline void acpi_set_hp_context(struct acpi_device *adev, | |
462 | struct acpi_hotplug_context *hp) | |
463 | { | |
464 | hp->self = adev; | |
465 | adev->hp = hp; | |
466 | } | |
467 | ||
468 | void acpi_initialize_hp_context(struct acpi_device *adev, | |
469 | struct acpi_hotplug_context *hp, | |
470 | int (*notify)(struct acpi_device *, u32), | |
471 | void (*uevent)(struct acpi_device *, u32)); | |
472 | ||
473 | /* acpi_device.dev.bus == &acpi_bus_type */ | |
474 | extern struct bus_type acpi_bus_type; | |
475 | ||
476 | /* | |
477 | * Events | |
478 | * ------ | |
479 | */ | |
480 | ||
481 | struct acpi_bus_event { | |
482 | struct list_head node; | |
483 | acpi_device_class device_class; | |
484 | acpi_bus_id bus_id; | |
485 | u32 type; | |
486 | u32 data; | |
487 | }; | |
488 | ||
489 | extern struct kobject *acpi_kobj; | |
490 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); | |
491 | void acpi_bus_private_data_handler(acpi_handle, void *); | |
492 | int acpi_bus_get_private_data(acpi_handle, void **); | |
493 | int acpi_bus_attach_private_data(acpi_handle, void *); | |
494 | void acpi_bus_detach_private_data(acpi_handle); | |
495 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); | |
496 | extern int register_acpi_notifier(struct notifier_block *); | |
497 | extern int unregister_acpi_notifier(struct notifier_block *); | |
498 | ||
499 | /* | |
500 | * External Functions | |
501 | */ | |
502 | ||
503 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
504 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); | |
505 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
506 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, | |
507 | unsigned long long *sta); | |
508 | int acpi_bus_get_status(struct acpi_device *device); | |
509 | ||
510 | int acpi_bus_set_power(acpi_handle handle, int state); | |
511 | const char *acpi_power_state_string(int state); | |
512 | int acpi_device_get_power(struct acpi_device *device, int *state); | |
513 | int acpi_device_set_power(struct acpi_device *device, int state); | |
514 | int acpi_bus_init_power(struct acpi_device *device); | |
515 | int acpi_device_fix_up_power(struct acpi_device *device); | |
516 | int acpi_bus_update_power(acpi_handle handle, int *state_p); | |
517 | int acpi_device_update_power(struct acpi_device *device, int *state_p); | |
518 | bool acpi_bus_power_manageable(acpi_handle handle); | |
519 | ||
520 | #ifdef CONFIG_PM | |
521 | bool acpi_bus_can_wakeup(acpi_handle handle); | |
522 | #else | |
523 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
524 | #endif | |
525 | ||
526 | void acpi_scan_lock_acquire(void); | |
527 | void acpi_scan_lock_release(void); | |
528 | void acpi_lock_hp_context(void); | |
529 | void acpi_unlock_hp_context(void); | |
530 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); | |
531 | int acpi_bus_register_driver(struct acpi_driver *driver); | |
532 | void acpi_bus_unregister_driver(struct acpi_driver *driver); | |
533 | int acpi_bus_scan(acpi_handle handle); | |
534 | void acpi_bus_trim(struct acpi_device *start); | |
535 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); | |
536 | int acpi_match_device_ids(struct acpi_device *device, | |
537 | const struct acpi_device_id *ids); | |
538 | void acpi_set_modalias(struct acpi_device *adev, const char *default_id, | |
539 | char *modalias, size_t len); | |
540 | int acpi_create_dir(struct acpi_device *); | |
541 | void acpi_remove_dir(struct acpi_device *); | |
542 | ||
543 | static inline bool acpi_device_enumerated(struct acpi_device *adev) | |
544 | { | |
545 | return adev && adev->flags.initialized && adev->flags.visited; | |
546 | } | |
547 | ||
548 | /** | |
549 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
550 | * @__acpi_driver: acpi_driver struct | |
551 | * | |
552 | * Helper macro for ACPI drivers which do not do anything special in module | |
553 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
554 | * use this macro once, and calling it replaces module_init() and module_exit() | |
555 | */ | |
556 | #define module_acpi_driver(__acpi_driver) \ | |
557 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
558 | acpi_bus_unregister_driver) | |
559 | ||
560 | /* | |
561 | * Bind physical devices with ACPI devices | |
562 | */ | |
563 | struct acpi_bus_type { | |
564 | struct list_head list; | |
565 | const char *name; | |
566 | bool (*match)(struct device *dev); | |
567 | struct acpi_device * (*find_companion)(struct device *); | |
568 | void (*setup)(struct device *); | |
569 | void (*cleanup)(struct device *); | |
570 | }; | |
571 | int register_acpi_bus_type(struct acpi_bus_type *); | |
572 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
573 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); | |
574 | int acpi_unbind_one(struct device *dev); | |
575 | ||
576 | struct acpi_pci_root { | |
577 | struct acpi_device * device; | |
578 | struct pci_bus *bus; | |
579 | u16 segment; | |
580 | struct resource secondary; /* downstream bus range */ | |
581 | ||
582 | u32 osc_support_set; /* _OSC state of support bits */ | |
583 | u32 osc_control_set; /* _OSC state of control bits */ | |
584 | phys_addr_t mcfg_addr; | |
585 | }; | |
586 | ||
587 | /* helper */ | |
588 | ||
589 | bool acpi_dma_supported(struct acpi_device *adev); | |
590 | enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); | |
591 | int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, | |
592 | u64 *size); | |
593 | int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); | |
594 | void acpi_dma_deconfigure(struct device *dev); | |
595 | ||
596 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, | |
597 | u64 address, bool check_children); | |
598 | int acpi_is_root_bridge(acpi_handle); | |
599 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); | |
600 | ||
601 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); | |
602 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
603 | ||
604 | #ifdef CONFIG_X86 | |
605 | bool acpi_device_always_present(struct acpi_device *adev); | |
606 | #else | |
607 | static inline bool acpi_device_always_present(struct acpi_device *adev) | |
608 | { | |
609 | return false; | |
610 | } | |
611 | #endif | |
612 | ||
613 | #ifdef CONFIG_PM | |
614 | void acpi_pm_wakeup_event(struct device *dev); | |
615 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, | |
616 | void (*func)(struct acpi_device_wakeup_context *context)); | |
617 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); | |
618 | bool acpi_pm_device_can_wakeup(struct device *dev); | |
619 | int acpi_pm_device_sleep_state(struct device *, int *, int); | |
620 | int acpi_pm_set_device_wakeup(struct device *dev, bool enable); | |
621 | int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable); | |
622 | #else | |
623 | static inline void acpi_pm_wakeup_event(struct device *dev) | |
624 | { | |
625 | } | |
626 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, | |
627 | struct device *dev, | |
628 | void (*func)(struct acpi_device_wakeup_context *context)) | |
629 | { | |
630 | return AE_SUPPORT; | |
631 | } | |
632 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) | |
633 | { | |
634 | return AE_SUPPORT; | |
635 | } | |
636 | static inline bool acpi_pm_device_can_wakeup(struct device *dev) | |
637 | { | |
638 | return false; | |
639 | } | |
640 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) | |
641 | { | |
642 | if (p) | |
643 | *p = ACPI_STATE_D0; | |
644 | ||
645 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? | |
646 | m : ACPI_STATE_D0; | |
647 | } | |
648 | static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable) | |
649 | { | |
650 | return -ENODEV; | |
651 | } | |
652 | static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable) | |
653 | { | |
654 | return -ENODEV; | |
655 | } | |
656 | #endif | |
657 | ||
658 | #ifdef CONFIG_ACPI_SLEEP | |
659 | u32 acpi_target_system_state(void); | |
660 | #else | |
661 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
662 | #endif | |
663 | ||
664 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) | |
665 | { | |
666 | return adev->flags.power_manageable; | |
667 | } | |
668 | ||
669 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
670 | { | |
671 | return adev->wakeup.flags.valid; | |
672 | } | |
673 | ||
674 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) | |
675 | { | |
676 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || | |
677 | ((acpi_gbl_FADT.header.revision < 6) && | |
678 | adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); | |
679 | } | |
680 | ||
681 | #else /* CONFIG_ACPI */ | |
682 | ||
683 | static inline int register_acpi_bus_type(void *bus) { return 0; } | |
684 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
685 | ||
686 | #endif /* CONFIG_ACPI */ | |
687 | ||
688 | #endif /*__ACPI_BUS_H__*/ |