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1da177e4 LT |
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 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
22 | * | |
23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
24 | */ | |
25 | ||
26 | #ifndef __ACPI_BUS_H__ | |
27 | #define __ACPI_BUS_H__ | |
28 | ||
5b327265 | 29 | #include <linux/device.h> |
1da177e4 | 30 | |
1da177e4 LT |
31 | /* TBD: Make dynamic */ |
32 | #define ACPI_MAX_HANDLES 10 | |
33 | struct acpi_handle_list { | |
4be44fcd LB |
34 | u32 count; |
35 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
36 | }; |
37 | ||
1da177e4 LT |
38 | /* acpi_utils.h */ |
39 | acpi_status | |
4be44fcd LB |
40 | acpi_extract_package(union acpi_object *package, |
41 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 42 | acpi_status |
4be44fcd LB |
43 | acpi_evaluate_integer(acpi_handle handle, |
44 | acpi_string pathname, | |
27663c58 | 45 | struct acpi_object_list *arguments, unsigned long long *data); |
1da177e4 | 46 | acpi_status |
4be44fcd LB |
47 | acpi_evaluate_reference(acpi_handle handle, |
48 | acpi_string pathname, | |
49 | struct acpi_object_list *arguments, | |
50 | struct acpi_handle_list *list); | |
275c58d7 TK |
51 | acpi_status |
52 | acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, | |
53 | u32 status_code, struct acpi_buffer *status_buf); | |
1da177e4 | 54 | |
38ac0f1b | 55 | acpi_status |
8ede06ab | 56 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
952c63e9 JL |
57 | |
58 | bool acpi_has_method(acpi_handle handle, char *name); | |
0db98202 JL |
59 | acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, |
60 | u64 arg); | |
7d2421f8 JL |
61 | acpi_status acpi_evaluate_ej0(acpi_handle handle); |
62 | acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); | |
ebf4df8d JL |
63 | bool acpi_ata_match(acpi_handle handle); |
64 | bool acpi_bay_match(acpi_handle handle); | |
65 | bool acpi_dock_match(acpi_handle handle); | |
952c63e9 | 66 | |
a65ac520 JL |
67 | bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); |
68 | union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, | |
69 | int rev, int func, union acpi_object *argv4); | |
70 | ||
71 | static inline union acpi_object * | |
72 | acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, | |
73 | union acpi_object *argv4, acpi_object_type type) | |
74 | { | |
75 | union acpi_object *obj; | |
76 | ||
77 | obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); | |
78 | if (obj && obj->type != type) { | |
79 | ACPI_FREE(obj); | |
80 | obj = NULL; | |
81 | } | |
82 | ||
83 | return obj; | |
84 | } | |
85 | ||
86 | #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ | |
87 | { \ | |
88 | .package.type = ACPI_TYPE_PACKAGE, \ | |
89 | .package.count = (cnt), \ | |
90 | .package.elements = (eles) \ | |
91 | } | |
92 | ||
76f58584 | 93 | #ifdef CONFIG_ACPI |
1da177e4 LT |
94 | |
95 | #include <linux/proc_fs.h> | |
96 | ||
97 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 98 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 | 99 | |
1da177e4 | 100 | enum acpi_bus_device_type { |
4be44fcd | 101 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
102 | ACPI_BUS_TYPE_POWER, |
103 | ACPI_BUS_TYPE_PROCESSOR, | |
104 | ACPI_BUS_TYPE_THERMAL, | |
1da177e4 LT |
105 | ACPI_BUS_TYPE_POWER_BUTTON, |
106 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
107 | ACPI_BUS_DEVICE_TYPE_COUNT | |
108 | }; | |
109 | ||
110 | struct acpi_driver; | |
111 | struct acpi_device; | |
112 | ||
ca589f94 RW |
113 | /* |
114 | * ACPI Scan Handler | |
115 | * ----------------- | |
116 | */ | |
117 | ||
a33ec399 | 118 | struct acpi_hotplug_profile { |
3f8055c3 | 119 | struct kobject kobj; |
3338db00 | 120 | int (*scan_dependent)(struct acpi_device *adev); |
d22ddcbc RW |
121 | bool enabled:1; |
122 | bool demand_offline:1; | |
a33ec399 RW |
123 | }; |
124 | ||
3f8055c3 RW |
125 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( |
126 | struct kobject *kobj) | |
127 | { | |
128 | return container_of(kobj, struct acpi_hotplug_profile, kobj); | |
129 | } | |
130 | ||
ca589f94 RW |
131 | struct acpi_scan_handler { |
132 | const struct acpi_device_id *ids; | |
133 | struct list_head list_node; | |
134 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); | |
135 | void (*detach)(struct acpi_device *dev); | |
a33ec399 | 136 | struct acpi_hotplug_profile hotplug; |
ca589f94 RW |
137 | }; |
138 | ||
3c2cc7ff RW |
139 | /* |
140 | * ACPI Hotplug Context | |
141 | * -------------------- | |
142 | */ | |
143 | ||
144 | struct acpi_hotplug_context { | |
145 | struct acpi_device *self; | |
146 | int (*event)(struct acpi_device *, u32); | |
59b42fa0 | 147 | void (*fixup)(struct acpi_device *); |
3c2cc7ff RW |
148 | }; |
149 | ||
1da177e4 LT |
150 | /* |
151 | * ACPI Driver | |
152 | * ----------- | |
153 | */ | |
154 | ||
4be44fcd | 155 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 156 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 157 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
158 | |
159 | struct acpi_device_ops { | |
4be44fcd LB |
160 | acpi_op_add add; |
161 | acpi_op_remove remove; | |
46ec8598 | 162 | acpi_op_notify notify; |
1da177e4 LT |
163 | }; |
164 | ||
6d278131 BH |
165 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
166 | ||
1da177e4 | 167 | struct acpi_driver { |
4be44fcd LB |
168 | char name[80]; |
169 | char class[80]; | |
8c8eb78f | 170 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 171 | unsigned int flags; |
4be44fcd | 172 | struct acpi_device_ops ops; |
d43ec68e | 173 | struct device_driver drv; |
1890a97a | 174 | struct module *owner; |
1da177e4 LT |
175 | }; |
176 | ||
177 | /* | |
178 | * ACPI Device | |
179 | * ----------- | |
180 | */ | |
181 | ||
182 | /* Status (_STA) */ | |
183 | ||
184 | struct acpi_device_status { | |
4be44fcd LB |
185 | u32 present:1; |
186 | u32 enabled:1; | |
187 | u32 show_in_ui:1; | |
188 | u32 functional:1; | |
189 | u32 battery_present:1; | |
190 | u32 reserved:27; | |
1da177e4 LT |
191 | }; |
192 | ||
1da177e4 LT |
193 | /* Flags */ |
194 | ||
195 | struct acpi_device_flags { | |
4be44fcd | 196 | u32 dynamic_status:1; |
4be44fcd LB |
197 | u32 removable:1; |
198 | u32 ejectable:1; | |
4be44fcd | 199 | u32 power_manageable:1; |
209d3b17 | 200 | u32 match_driver:1; |
202317a5 RW |
201 | u32 initialized:1; |
202 | u32 visited:1; | |
f244d8b6 | 203 | u32 no_hotplug:1; |
3c2cc7ff | 204 | u32 hotplug_notify:1; |
1e2380cd RW |
205 | u32 is_dock_station:1; |
206 | u32 reserved:22; | |
1da177e4 LT |
207 | }; |
208 | ||
1da177e4 LT |
209 | /* File System */ |
210 | ||
211 | struct acpi_device_dir { | |
4be44fcd | 212 | struct proc_dir_entry *entry; |
1da177e4 LT |
213 | }; |
214 | ||
215 | #define acpi_device_dir(d) ((d)->dir.entry) | |
216 | ||
1da177e4 LT |
217 | /* Plug and Play */ |
218 | ||
24c5c4c2 | 219 | typedef char acpi_bus_id[8]; |
4be44fcd | 220 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
221 | typedef char acpi_device_name[40]; |
222 | typedef char acpi_device_class[20]; | |
1da177e4 | 223 | |
7f47fa6c BH |
224 | struct acpi_hardware_id { |
225 | struct list_head list; | |
226 | char *id; | |
227 | }; | |
228 | ||
d4e1a692 TK |
229 | struct acpi_pnp_type { |
230 | u32 hardware_id:1; | |
231 | u32 bus_address:1; | |
232 | u32 reserved:30; | |
233 | }; | |
234 | ||
1da177e4 | 235 | struct acpi_device_pnp { |
d4e1a692 TK |
236 | acpi_bus_id bus_id; /* Object name */ |
237 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 238 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 239 | char *unique_id; /* _UID */ |
7f47fa6c | 240 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
241 | acpi_device_name device_name; /* Driver-determined */ |
242 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 243 | union acpi_object *str_obj; /* unicode string for _STR method */ |
bb74ac23 | 244 | unsigned long sun; /* _SUN */ |
1da177e4 LT |
245 | }; |
246 | ||
247 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
248 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 249 | const char *acpi_device_hid(struct acpi_device *device); |
1da177e4 LT |
250 | #define acpi_device_name(d) ((d)->pnp.device_name) |
251 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
252 | ||
1da177e4 LT |
253 | /* Power Management */ |
254 | ||
255 | struct acpi_device_power_flags { | |
4be44fcd LB |
256 | u32 explicit_get:1; /* _PSC present? */ |
257 | u32 power_resources:1; /* Power resources */ | |
258 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
259 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
644f17ad MW |
260 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
261 | u32 reserved:27; | |
1da177e4 LT |
262 | }; |
263 | ||
264 | struct acpi_device_power_state { | |
265 | struct { | |
4be44fcd | 266 | u8 valid:1; |
1399dfcd | 267 | u8 os_accessible:1; |
4be44fcd LB |
268 | u8 explicit_set:1; /* _PSx present? */ |
269 | u8 reserved:6; | |
270 | } flags; | |
271 | int power; /* % Power (compared to D0) */ | |
272 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 273 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
274 | }; |
275 | ||
276 | struct acpi_device_power { | |
4be44fcd | 277 | int state; /* Current state */ |
1da177e4 | 278 | struct acpi_device_power_flags flags; |
b4a03b9a | 279 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
280 | }; |
281 | ||
1da177e4 LT |
282 | /* Performance Management */ |
283 | ||
284 | struct acpi_device_perf_flags { | |
4be44fcd | 285 | u8 reserved:8; |
1da177e4 LT |
286 | }; |
287 | ||
288 | struct acpi_device_perf_state { | |
289 | struct { | |
4be44fcd LB |
290 | u8 valid:1; |
291 | u8 reserved:7; | |
292 | } flags; | |
293 | u8 power; /* % Power (compared to P0) */ | |
294 | u8 performance; /* % Performance ( " ) */ | |
295 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
296 | }; |
297 | ||
298 | struct acpi_device_perf { | |
4be44fcd | 299 | int state; |
1da177e4 | 300 | struct acpi_device_perf_flags flags; |
4be44fcd | 301 | int state_count; |
1da177e4 LT |
302 | struct acpi_device_perf_state *states; |
303 | }; | |
304 | ||
305 | /* Wakeup Management */ | |
306 | struct acpi_device_wakeup_flags { | |
4be44fcd LB |
307 | u8 valid:1; /* Can successfully enable wakeup? */ |
308 | u8 run_wake:1; /* Run-Wake GPE devices */ | |
b67ea761 | 309 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
1da177e4 LT |
310 | }; |
311 | ||
1da177e4 | 312 | struct acpi_device_wakeup { |
4be44fcd | 313 | acpi_handle gpe_device; |
439913ff LM |
314 | u64 gpe_number; |
315 | u64 sleep_state; | |
993cbe59 | 316 | struct list_head resources; |
4be44fcd | 317 | struct acpi_device_wakeup_flags flags; |
9b83ccd2 | 318 | int prepare_count; |
1da177e4 LT |
319 | }; |
320 | ||
1033f904 | 321 | struct acpi_device_physical_node { |
007ccfcf | 322 | unsigned int node_id; |
1033f904 LT |
323 | struct list_head node; |
324 | struct device *dev; | |
683058e3 | 325 | bool put_online:1; |
1033f904 | 326 | }; |
1da177e4 | 327 | |
1033f904 | 328 | /* Device */ |
1da177e4 | 329 | struct acpi_device { |
caaa6efb BH |
330 | int device_type; |
331 | acpi_handle handle; /* no handle for fixed hardware */ | |
4be44fcd LB |
332 | struct acpi_device *parent; |
333 | struct list_head children; | |
334 | struct list_head node; | |
335 | struct list_head wakeup_list; | |
d783156e | 336 | struct list_head del_list; |
1da177e4 LT |
337 | struct acpi_device_status status; |
338 | struct acpi_device_flags flags; | |
4be44fcd | 339 | struct acpi_device_pnp pnp; |
1da177e4 LT |
340 | struct acpi_device_power power; |
341 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
342 | struct acpi_device_perf performance; |
343 | struct acpi_device_dir dir; | |
ca589f94 | 344 | struct acpi_scan_handler *handler; |
3c2cc7ff | 345 | struct acpi_hotplug_context *hp; |
4be44fcd LB |
346 | struct acpi_driver *driver; |
347 | void *driver_data; | |
5b327265 | 348 | struct device dev; |
007ccfcf | 349 | unsigned int physical_node_count; |
1033f904 LT |
350 | struct list_head physical_node_list; |
351 | struct mutex physical_node_lock; | |
b1c0f99b | 352 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
353 | }; |
354 | ||
db89b4f0 PM |
355 | static inline void *acpi_driver_data(struct acpi_device *d) |
356 | { | |
357 | return d->driver_data; | |
358 | } | |
359 | ||
d43ec68e PM |
360 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
361 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 362 | |
25db115b RW |
363 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
364 | { | |
365 | *((u32 *)&adev->status) = sta; | |
366 | } | |
367 | ||
3c2cc7ff RW |
368 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
369 | struct acpi_hotplug_context *hp, | |
59b42fa0 RW |
370 | int (*event)(struct acpi_device *, u32), |
371 | void (*fixup)(struct acpi_device *)) | |
3c2cc7ff RW |
372 | { |
373 | hp->self = adev; | |
374 | hp->event = event; | |
59b42fa0 | 375 | hp->fixup = fixup; |
3c2cc7ff RW |
376 | adev->hp = hp; |
377 | } | |
378 | ||
55955aad DB |
379 | /* acpi_device.dev.bus == &acpi_bus_type */ |
380 | extern struct bus_type acpi_bus_type; | |
381 | ||
1da177e4 LT |
382 | /* |
383 | * Events | |
384 | * ------ | |
385 | */ | |
386 | ||
387 | struct acpi_bus_event { | |
4be44fcd LB |
388 | struct list_head node; |
389 | acpi_device_class device_class; | |
390 | acpi_bus_id bus_id; | |
391 | u32 type; | |
392 | u32 data; | |
1da177e4 LT |
393 | }; |
394 | ||
99e0d2fc | 395 | extern struct kobject *acpi_kobj; |
962ce8ca | 396 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 397 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 398 | int acpi_bus_get_private_data(acpi_handle, void **); |
f244d8b6 | 399 | void acpi_bus_no_hotplug(acpi_handle handle); |
9ee85241 ZR |
400 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
401 | extern int register_acpi_notifier(struct notifier_block *); | |
402 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 403 | |
1da177e4 LT |
404 | /* |
405 | * External Functions | |
406 | */ | |
407 | ||
408 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
409 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
410 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
411 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
412 | unsigned long long *sta); | |
4be44fcd | 413 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 414 | |
4be44fcd | 415 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 416 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 417 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 418 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 419 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 420 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 421 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
3737b2b1 | 422 | bool acpi_bus_power_manageable(acpi_handle handle); |
ec4602a9 RW |
423 | |
424 | #ifdef CONFIG_PM | |
eb9d0fe4 | 425 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
426 | #else |
427 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
428 | #endif | |
9ce4e607 | 429 | |
3757b948 RW |
430 | void acpi_scan_lock_acquire(void); |
431 | void acpi_scan_lock_release(void); | |
e525506f RW |
432 | void acpi_lock_hp_context(void); |
433 | void acpi_unlock_hp_context(void); | |
ca589f94 | 434 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 435 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 436 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 437 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 438 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 439 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
440 | int acpi_match_device_ids(struct acpi_device *device, |
441 | const struct acpi_device_id *ids); | |
1da177e4 LT |
442 | int acpi_create_dir(struct acpi_device *); |
443 | void acpi_remove_dir(struct acpi_device *); | |
444 | ||
202317a5 RW |
445 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
446 | { | |
447 | return adev && adev->flags.initialized && adev->flags.visited; | |
448 | } | |
449 | ||
7b98118a RW |
450 | typedef void (*acpi_hp_callback)(void *data, u32 src); |
451 | ||
452 | acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src); | |
0d2cf8f5 MW |
453 | |
454 | /** | |
455 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
456 | * @__acpi_driver: acpi_driver struct | |
457 | * | |
458 | * Helper macro for ACPI drivers which do not do anything special in module | |
459 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
460 | * use this macro once, and calling it replaces module_init() and module_exit() | |
461 | */ | |
462 | #define module_acpi_driver(__acpi_driver) \ | |
463 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
464 | acpi_bus_unregister_driver) | |
465 | ||
4e10d12a DSL |
466 | /* |
467 | * Bind physical devices with ACPI devices | |
468 | */ | |
4e10d12a | 469 | struct acpi_bus_type { |
4be44fcd | 470 | struct list_head list; |
53540098 RW |
471 | const char *name; |
472 | bool (*match)(struct device *dev); | |
e3f02c52 | 473 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
474 | void (*setup)(struct device *); |
475 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
476 | }; |
477 | int register_acpi_bus_type(struct acpi_bus_type *); | |
478 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
22c13f9d | 479 | |
76d56de5 | 480 | struct acpi_pci_root { |
76d56de5 | 481 | struct acpi_device * device; |
76d56de5 AC |
482 | struct pci_bus *bus; |
483 | u16 segment; | |
6ad95513 | 484 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
485 | |
486 | u32 osc_support_set; /* _OSC state of support bits */ | |
487 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 488 | phys_addr_t mcfg_addr; |
76d56de5 AC |
489 | }; |
490 | ||
4e10d12a | 491 | /* helper */ |
d9fef0c4 RW |
492 | |
493 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, | |
494 | u64 address, bool check_children); | |
27558203 | 495 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 496 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 497 | |
b67ea761 RW |
498 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
499 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
500 | ||
aa338601 | 501 | #ifdef CONFIG_PM |
ec2cd81c RW |
502 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
503 | acpi_notify_handler handler, void *context); | |
504 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, | |
505 | acpi_notify_handler handler); | |
ee85f543 | 506 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
761afb86 | 507 | #else |
ec2cd81c RW |
508 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
509 | acpi_notify_handler handler, | |
510 | void *context) | |
511 | { | |
512 | return AE_SUPPORT; | |
513 | } | |
514 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, | |
515 | acpi_notify_handler handler) | |
516 | { | |
517 | return AE_SUPPORT; | |
518 | } | |
b25c77ef | 519 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
296699de RW |
520 | { |
521 | if (p) | |
522 | *p = ACPI_STATE_D0; | |
b25c77ef | 523 | |
8ad928d5 RW |
524 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
525 | m : ACPI_STATE_D0; | |
296699de | 526 | } |
761afb86 RW |
527 | #endif |
528 | ||
bdda27fb | 529 | #ifdef CONFIG_PM_RUNTIME |
dee8370c | 530 | int __acpi_device_run_wake(struct acpi_device *, bool); |
b24e5098 | 531 | int acpi_pm_device_run_wake(struct device *, bool); |
761afb86 | 532 | #else |
dee8370c RW |
533 | static inline int __acpi_device_run_wake(struct acpi_device *adev, bool en) |
534 | { | |
535 | return -ENODEV; | |
536 | } | |
b24e5098 LM |
537 | static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) |
538 | { | |
539 | return -ENODEV; | |
540 | } | |
bdda27fb RW |
541 | #endif |
542 | ||
543 | #ifdef CONFIG_PM_SLEEP | |
dee8370c | 544 | int __acpi_device_sleep_wake(struct acpi_device *, u32, bool); |
bdda27fb RW |
545 | int acpi_pm_device_sleep_wake(struct device *, bool); |
546 | #else | |
dee8370c RW |
547 | static inline int __acpi_device_sleep_wake(struct acpi_device *adev, |
548 | u32 target_state, bool enable) | |
549 | { | |
550 | return -ENODEV; | |
551 | } | |
f7a1b860 DH |
552 | static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) |
553 | { | |
554 | return -ENODEV; | |
555 | } | |
761afb86 | 556 | #endif |
fd4aff1a | 557 | |
99926a8c DR |
558 | #ifdef CONFIG_ACPI_SLEEP |
559 | u32 acpi_target_system_state(void); | |
560 | #else | |
561 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
562 | #endif | |
563 | ||
078eb126 RW |
564 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
565 | { | |
566 | return adev->flags.power_manageable; | |
567 | } | |
568 | ||
569 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
570 | { | |
571 | return adev->wakeup.flags.valid; | |
572 | } | |
573 | ||
1399dfcd AL |
574 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
575 | { | |
576 | return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; | |
577 | } | |
578 | ||
66886d6f MG |
579 | #else /* CONFIG_ACPI */ |
580 | ||
7ae30986 LB |
581 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
582 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 583 | |
fd350943 | 584 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
585 | |
586 | #endif /*__ACPI_BUS_H__*/ |