Commit | Line | Data |
---|---|---|
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 | * | |
1da177e4 LT |
19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
20 | */ | |
21 | ||
22 | #ifndef __ACPI_BUS_H__ | |
23 | #define __ACPI_BUS_H__ | |
24 | ||
5b327265 | 25 | #include <linux/device.h> |
8a0662d9 | 26 | #include <linux/property.h> |
1da177e4 | 27 | |
1da177e4 LT |
28 | /* TBD: Make dynamic */ |
29 | #define ACPI_MAX_HANDLES 10 | |
30 | struct acpi_handle_list { | |
4be44fcd LB |
31 | u32 count; |
32 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
33 | }; |
34 | ||
1da177e4 LT |
35 | /* acpi_utils.h */ |
36 | acpi_status | |
4be44fcd LB |
37 | acpi_extract_package(union acpi_object *package, |
38 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 39 | acpi_status |
4be44fcd LB |
40 | acpi_evaluate_integer(acpi_handle handle, |
41 | acpi_string pathname, | |
27663c58 | 42 | struct acpi_object_list *arguments, unsigned long long *data); |
1da177e4 | 43 | acpi_status |
4be44fcd LB |
44 | acpi_evaluate_reference(acpi_handle handle, |
45 | acpi_string pathname, | |
46 | struct acpi_object_list *arguments, | |
47 | struct acpi_handle_list *list); | |
275c58d7 | 48 | acpi_status |
05730c19 JL |
49 | acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, |
50 | struct acpi_buffer *status_buf); | |
1da177e4 | 51 | |
38ac0f1b | 52 | acpi_status |
8ede06ab | 53 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
952c63e9 JL |
54 | |
55 | bool acpi_has_method(acpi_handle handle, char *name); | |
0db98202 JL |
56 | acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, |
57 | u64 arg); | |
7d2421f8 JL |
58 | acpi_status acpi_evaluate_ej0(acpi_handle handle); |
59 | acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); | |
ebf4df8d JL |
60 | bool acpi_ata_match(acpi_handle handle); |
61 | bool acpi_bay_match(acpi_handle handle); | |
62 | bool acpi_dock_match(acpi_handle handle); | |
952c63e9 | 63 | |
94116f81 AS |
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, | |
c7e16e52 | 66 | u64 rev, u64 func, union acpi_object *argv4); |
a65ac520 JL |
67 | |
68 | static inline union acpi_object * | |
94116f81 AS |
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) | |
a65ac520 JL |
72 | { |
73 | union acpi_object *obj; | |
74 | ||
94116f81 | 75 | obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4); |
a65ac520 JL |
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 | ||
c68ae33e | 91 | bool acpi_dev_found(const char *hid); |
8661423e | 92 | bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); |
2d12b6b3 | 93 | |
76f58584 | 94 | #ifdef CONFIG_ACPI |
1da177e4 LT |
95 | |
96 | #include <linux/proc_fs.h> | |
97 | ||
98 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 99 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 | 100 | |
1da177e4 | 101 | enum acpi_bus_device_type { |
4be44fcd | 102 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
103 | ACPI_BUS_TYPE_POWER, |
104 | ACPI_BUS_TYPE_PROCESSOR, | |
105 | ACPI_BUS_TYPE_THERMAL, | |
1da177e4 LT |
106 | ACPI_BUS_TYPE_POWER_BUTTON, |
107 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
a64a62ce | 108 | ACPI_BUS_TYPE_ECDT_EC, |
1da177e4 LT |
109 | ACPI_BUS_DEVICE_TYPE_COUNT |
110 | }; | |
111 | ||
112 | struct acpi_driver; | |
113 | struct acpi_device; | |
114 | ||
ca589f94 RW |
115 | /* |
116 | * ACPI Scan Handler | |
117 | * ----------------- | |
118 | */ | |
119 | ||
a33ec399 | 120 | struct acpi_hotplug_profile { |
3f8055c3 | 121 | struct kobject kobj; |
3338db00 | 122 | int (*scan_dependent)(struct acpi_device *adev); |
8ab17fc9 | 123 | void (*notify_online)(struct acpi_device *adev); |
d22ddcbc RW |
124 | bool enabled:1; |
125 | bool demand_offline:1; | |
a33ec399 RW |
126 | }; |
127 | ||
3f8055c3 RW |
128 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( |
129 | struct kobject *kobj) | |
130 | { | |
131 | return container_of(kobj, struct acpi_hotplug_profile, kobj); | |
132 | } | |
133 | ||
ca589f94 RW |
134 | struct acpi_scan_handler { |
135 | const struct acpi_device_id *ids; | |
136 | struct list_head list_node; | |
636c19d3 | 137 | bool (*match)(const char *idstr, const struct acpi_device_id **matchid); |
ca589f94 RW |
138 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); |
139 | void (*detach)(struct acpi_device *dev); | |
9cb32acf RW |
140 | void (*bind)(struct device *phys_dev); |
141 | void (*unbind)(struct device *phys_dev); | |
a33ec399 | 142 | struct acpi_hotplug_profile hotplug; |
ca589f94 RW |
143 | }; |
144 | ||
3c2cc7ff RW |
145 | /* |
146 | * ACPI Hotplug Context | |
147 | * -------------------- | |
148 | */ | |
149 | ||
150 | struct acpi_hotplug_context { | |
151 | struct acpi_device *self; | |
be27b3dc RW |
152 | int (*notify)(struct acpi_device *, u32); |
153 | void (*uevent)(struct acpi_device *, u32); | |
59b42fa0 | 154 | void (*fixup)(struct acpi_device *); |
3c2cc7ff RW |
155 | }; |
156 | ||
1da177e4 LT |
157 | /* |
158 | * ACPI Driver | |
159 | * ----------- | |
160 | */ | |
161 | ||
4be44fcd | 162 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 163 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 164 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
165 | |
166 | struct acpi_device_ops { | |
4be44fcd LB |
167 | acpi_op_add add; |
168 | acpi_op_remove remove; | |
46ec8598 | 169 | acpi_op_notify notify; |
1da177e4 LT |
170 | }; |
171 | ||
6d278131 BH |
172 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
173 | ||
1da177e4 | 174 | struct acpi_driver { |
4be44fcd LB |
175 | char name[80]; |
176 | char class[80]; | |
8c8eb78f | 177 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 178 | unsigned int flags; |
4be44fcd | 179 | struct acpi_device_ops ops; |
d43ec68e | 180 | struct device_driver drv; |
1890a97a | 181 | struct module *owner; |
1da177e4 LT |
182 | }; |
183 | ||
184 | /* | |
185 | * ACPI Device | |
186 | * ----------- | |
187 | */ | |
188 | ||
189 | /* Status (_STA) */ | |
190 | ||
191 | struct acpi_device_status { | |
4be44fcd LB |
192 | u32 present:1; |
193 | u32 enabled:1; | |
194 | u32 show_in_ui:1; | |
195 | u32 functional:1; | |
196 | u32 battery_present:1; | |
197 | u32 reserved:27; | |
1da177e4 LT |
198 | }; |
199 | ||
1da177e4 LT |
200 | /* Flags */ |
201 | ||
202 | struct acpi_device_flags { | |
4be44fcd | 203 | u32 dynamic_status:1; |
4be44fcd LB |
204 | u32 removable:1; |
205 | u32 ejectable:1; | |
4be44fcd | 206 | u32 power_manageable:1; |
209d3b17 | 207 | u32 match_driver:1; |
202317a5 RW |
208 | u32 initialized:1; |
209 | u32 visited:1; | |
3c2cc7ff | 210 | u32 hotplug_notify:1; |
1e2380cd | 211 | u32 is_dock_station:1; |
5c53b262 | 212 | u32 of_compatible_ok:1; |
d0562674 SS |
213 | u32 coherent_dma:1; |
214 | u32 cca_seen:1; | |
e361d1f8 | 215 | u32 serial_bus_slave:1; |
e4330d8b | 216 | u32 reserved:19; |
1da177e4 LT |
217 | }; |
218 | ||
1da177e4 LT |
219 | /* File System */ |
220 | ||
221 | struct acpi_device_dir { | |
4be44fcd | 222 | struct proc_dir_entry *entry; |
1da177e4 LT |
223 | }; |
224 | ||
225 | #define acpi_device_dir(d) ((d)->dir.entry) | |
226 | ||
1da177e4 LT |
227 | /* Plug and Play */ |
228 | ||
24c5c4c2 | 229 | typedef char acpi_bus_id[8]; |
4be44fcd | 230 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
231 | typedef char acpi_device_name[40]; |
232 | typedef char acpi_device_class[20]; | |
1da177e4 | 233 | |
7f47fa6c BH |
234 | struct acpi_hardware_id { |
235 | struct list_head list; | |
844142c3 | 236 | const char *id; |
7f47fa6c BH |
237 | }; |
238 | ||
d4e1a692 TK |
239 | struct acpi_pnp_type { |
240 | u32 hardware_id:1; | |
241 | u32 bus_address:1; | |
549e6845 RW |
242 | u32 platform_id:1; |
243 | u32 reserved:29; | |
d4e1a692 TK |
244 | }; |
245 | ||
1da177e4 | 246 | struct acpi_device_pnp { |
d4e1a692 TK |
247 | acpi_bus_id bus_id; /* Object name */ |
248 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 249 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 250 | char *unique_id; /* _UID */ |
7f47fa6c | 251 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
252 | acpi_device_name device_name; /* Driver-determined */ |
253 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 254 | union acpi_object *str_obj; /* unicode string for _STR method */ |
1da177e4 LT |
255 | }; |
256 | ||
257 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
258 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 259 | const char *acpi_device_hid(struct acpi_device *device); |
359597cb | 260 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
1da177e4 LT |
261 | #define acpi_device_name(d) ((d)->pnp.device_name) |
262 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
263 | ||
1da177e4 LT |
264 | /* Power Management */ |
265 | ||
266 | struct acpi_device_power_flags { | |
4be44fcd LB |
267 | u32 explicit_get:1; /* _PSC present? */ |
268 | u32 power_resources:1; /* Power resources */ | |
269 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
270 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
644f17ad | 271 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
f25c0ae2 RW |
272 | u32 dsw_present:1; /* _DSW present? */ |
273 | u32 reserved:26; | |
1da177e4 LT |
274 | }; |
275 | ||
276 | struct acpi_device_power_state { | |
277 | struct { | |
4be44fcd LB |
278 | u8 valid:1; |
279 | u8 explicit_set:1; /* _PSx present? */ | |
280 | u8 reserved:6; | |
281 | } flags; | |
282 | int power; /* % Power (compared to D0) */ | |
283 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 284 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
285 | }; |
286 | ||
287 | struct acpi_device_power { | |
4be44fcd | 288 | int state; /* Current state */ |
1da177e4 | 289 | struct acpi_device_power_flags flags; |
b4a03b9a | 290 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
291 | }; |
292 | ||
1da177e4 LT |
293 | /* Performance Management */ |
294 | ||
295 | struct acpi_device_perf_flags { | |
4be44fcd | 296 | u8 reserved:8; |
1da177e4 LT |
297 | }; |
298 | ||
299 | struct acpi_device_perf_state { | |
300 | struct { | |
4be44fcd LB |
301 | u8 valid:1; |
302 | u8 reserved:7; | |
303 | } flags; | |
304 | u8 power; /* % Power (compared to P0) */ | |
305 | u8 performance; /* % Performance ( " ) */ | |
306 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
307 | }; |
308 | ||
309 | struct acpi_device_perf { | |
4be44fcd | 310 | int state; |
1da177e4 | 311 | struct acpi_device_perf_flags flags; |
4be44fcd | 312 | int state_count; |
1da177e4 LT |
313 | struct acpi_device_perf_state *states; |
314 | }; | |
315 | ||
316 | /* Wakeup Management */ | |
317 | struct acpi_device_wakeup_flags { | |
4be44fcd | 318 | u8 valid:1; /* Can successfully enable wakeup? */ |
b67ea761 | 319 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
1da177e4 LT |
320 | }; |
321 | ||
c072530f | 322 | struct acpi_device_wakeup_context { |
64fd1c70 | 323 | void (*func)(struct acpi_device_wakeup_context *context); |
c072530f RW |
324 | struct device *dev; |
325 | }; | |
326 | ||
1da177e4 | 327 | struct acpi_device_wakeup { |
4be44fcd | 328 | acpi_handle gpe_device; |
439913ff LM |
329 | u64 gpe_number; |
330 | u64 sleep_state; | |
993cbe59 | 331 | struct list_head resources; |
4be44fcd | 332 | struct acpi_device_wakeup_flags flags; |
c072530f RW |
333 | struct acpi_device_wakeup_context context; |
334 | struct wakeup_source *ws; | |
9b83ccd2 | 335 | int prepare_count; |
99d8845e | 336 | int enable_count; |
1da177e4 LT |
337 | }; |
338 | ||
1033f904 | 339 | struct acpi_device_physical_node { |
007ccfcf | 340 | unsigned int node_id; |
1033f904 LT |
341 | struct list_head node; |
342 | struct device *dev; | |
683058e3 | 343 | bool put_online:1; |
1033f904 | 344 | }; |
1da177e4 | 345 | |
ffdcd955 MW |
346 | /* ACPI Device Specific Data (_DSD) */ |
347 | struct acpi_device_data { | |
348 | const union acpi_object *pointer; | |
349 | const union acpi_object *properties; | |
733e6251 | 350 | const union acpi_object *of_compatible; |
445b0eb0 | 351 | struct list_head subnodes; |
ffdcd955 MW |
352 | }; |
353 | ||
f028d524 RW |
354 | struct acpi_gpio_mapping; |
355 | ||
1033f904 | 356 | /* Device */ |
1da177e4 | 357 | struct acpi_device { |
caaa6efb BH |
358 | int device_type; |
359 | acpi_handle handle; /* no handle for fixed hardware */ | |
8a0662d9 | 360 | struct fwnode_handle fwnode; |
4be44fcd LB |
361 | struct acpi_device *parent; |
362 | struct list_head children; | |
363 | struct list_head node; | |
364 | struct list_head wakeup_list; | |
d783156e | 365 | struct list_head del_list; |
1da177e4 LT |
366 | struct acpi_device_status status; |
367 | struct acpi_device_flags flags; | |
4be44fcd | 368 | struct acpi_device_pnp pnp; |
1da177e4 LT |
369 | struct acpi_device_power power; |
370 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
371 | struct acpi_device_perf performance; |
372 | struct acpi_device_dir dir; | |
ffdcd955 | 373 | struct acpi_device_data data; |
ca589f94 | 374 | struct acpi_scan_handler *handler; |
3c2cc7ff | 375 | struct acpi_hotplug_context *hp; |
4be44fcd | 376 | struct acpi_driver *driver; |
f028d524 | 377 | const struct acpi_gpio_mapping *driver_gpios; |
4be44fcd | 378 | void *driver_data; |
5b327265 | 379 | struct device dev; |
007ccfcf | 380 | unsigned int physical_node_count; |
40e7fcb1 | 381 | unsigned int dep_unmet; |
1033f904 LT |
382 | struct list_head physical_node_list; |
383 | struct mutex physical_node_lock; | |
b1c0f99b | 384 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
385 | }; |
386 | ||
445b0eb0 RW |
387 | /* Non-device subnode */ |
388 | struct acpi_data_node { | |
389 | const char *name; | |
263b4c1a | 390 | acpi_handle handle; |
445b0eb0 | 391 | struct fwnode_handle fwnode; |
dfa672fb | 392 | struct fwnode_handle *parent; |
445b0eb0 RW |
393 | struct acpi_device_data data; |
394 | struct list_head sibling; | |
263b4c1a RW |
395 | struct kobject kobj; |
396 | struct completion kobj_done; | |
445b0eb0 RW |
397 | }; |
398 | ||
db3e50f3 SA |
399 | extern const struct fwnode_operations acpi_device_fwnode_ops; |
400 | extern const struct fwnode_operations acpi_data_fwnode_ops; | |
401 | extern const struct fwnode_operations acpi_static_fwnode_ops; | |
3a7a2ab8 | 402 | |
9e987b70 JH |
403 | bool is_acpi_device_node(const struct fwnode_handle *fwnode); |
404 | bool is_acpi_data_node(const struct fwnode_handle *fwnode); | |
8a0662d9 | 405 | |
9e987b70 | 406 | static inline bool is_acpi_node(const struct fwnode_handle *fwnode) |
8a0662d9 | 407 | { |
9e987b70 | 408 | return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode)); |
8a0662d9 RW |
409 | } |
410 | ||
8b9d6802 SA |
411 | #define to_acpi_device_node(__fwnode) \ |
412 | ({ \ | |
413 | typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \ | |
414 | \ | |
415 | is_acpi_device_node(__to_acpi_device_node_fwnode) ? \ | |
416 | container_of(__to_acpi_device_node_fwnode, \ | |
417 | struct acpi_device, fwnode) : \ | |
418 | NULL; \ | |
419 | }) | |
420 | ||
8b9d6802 SA |
421 | #define to_acpi_data_node(__fwnode) \ |
422 | ({ \ | |
423 | typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \ | |
424 | \ | |
425 | is_acpi_data_node(__to_acpi_data_node_fwnode) ? \ | |
426 | container_of(__to_acpi_data_node_fwnode, \ | |
427 | struct acpi_data_node, fwnode) : \ | |
428 | NULL; \ | |
429 | }) | |
430 | ||
431 | static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode) | |
3a7a2ab8 | 432 | { |
db3e50f3 SA |
433 | return !IS_ERR_OR_NULL(fwnode) && |
434 | fwnode->ops == &acpi_static_fwnode_ops; | |
3a7a2ab8 RW |
435 | } |
436 | ||
8b9d6802 | 437 | static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, |
613e9721 AT |
438 | const char *name) |
439 | { | |
440 | return is_acpi_data_node(fwnode) ? | |
441 | (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; | |
442 | } | |
443 | ||
8a0662d9 RW |
444 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) |
445 | { | |
446 | return &adev->fwnode; | |
447 | } | |
448 | ||
db89b4f0 PM |
449 | static inline void *acpi_driver_data(struct acpi_device *d) |
450 | { | |
451 | return d->driver_data; | |
452 | } | |
453 | ||
d43ec68e PM |
454 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
455 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 456 | |
25db115b RW |
457 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
458 | { | |
459 | *((u32 *)&adev->status) = sta; | |
460 | } | |
461 | ||
3c2cc7ff | 462 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
ba574dc8 | 463 | struct acpi_hotplug_context *hp) |
3c2cc7ff RW |
464 | { |
465 | hp->self = adev; | |
3c2cc7ff RW |
466 | adev->hp = hp; |
467 | } | |
468 | ||
5d513205 RW |
469 | void acpi_initialize_hp_context(struct acpi_device *adev, |
470 | struct acpi_hotplug_context *hp, | |
471 | int (*notify)(struct acpi_device *, u32), | |
472 | void (*uevent)(struct acpi_device *, u32)); | |
473 | ||
55955aad DB |
474 | /* acpi_device.dev.bus == &acpi_bus_type */ |
475 | extern struct bus_type acpi_bus_type; | |
476 | ||
1da177e4 LT |
477 | /* |
478 | * Events | |
479 | * ------ | |
480 | */ | |
481 | ||
482 | struct acpi_bus_event { | |
4be44fcd LB |
483 | struct list_head node; |
484 | acpi_device_class device_class; | |
485 | acpi_bus_id bus_id; | |
486 | u32 type; | |
487 | u32 data; | |
1da177e4 LT |
488 | }; |
489 | ||
99e0d2fc | 490 | extern struct kobject *acpi_kobj; |
962ce8ca | 491 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 492 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 493 | int acpi_bus_get_private_data(acpi_handle, void **); |
72013795 LT |
494 | int acpi_bus_attach_private_data(acpi_handle, void *); |
495 | void acpi_bus_detach_private_data(acpi_handle); | |
9ee85241 ZR |
496 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
497 | extern int register_acpi_notifier(struct notifier_block *); | |
498 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 499 | |
1da177e4 LT |
500 | /* |
501 | * External Functions | |
502 | */ | |
503 | ||
504 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
505 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
506 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
507 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
508 | unsigned long long *sta); | |
4be44fcd | 509 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 510 | |
4be44fcd | 511 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 512 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 513 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 514 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 515 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 516 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 517 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
2bb3a2bf | 518 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
3737b2b1 | 519 | bool acpi_bus_power_manageable(acpi_handle handle); |
ec4602a9 RW |
520 | |
521 | #ifdef CONFIG_PM | |
eb9d0fe4 | 522 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
523 | #else |
524 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
525 | #endif | |
9ce4e607 | 526 | |
3757b948 RW |
527 | void acpi_scan_lock_acquire(void); |
528 | void acpi_scan_lock_release(void); | |
e525506f RW |
529 | void acpi_lock_hp_context(void); |
530 | void acpi_unlock_hp_context(void); | |
ca589f94 | 531 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 532 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 533 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 534 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 535 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 536 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
537 | int acpi_match_device_ids(struct acpi_device *device, |
538 | const struct acpi_device_id *ids); | |
51ede5d9 DD |
539 | void acpi_set_modalias(struct acpi_device *adev, const char *default_id, |
540 | char *modalias, size_t len); | |
1da177e4 LT |
541 | int acpi_create_dir(struct acpi_device *); |
542 | void acpi_remove_dir(struct acpi_device *); | |
543 | ||
202317a5 RW |
544 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
545 | { | |
546 | return adev && adev->flags.initialized && adev->flags.visited; | |
547 | } | |
548 | ||
0d2cf8f5 MW |
549 | /** |
550 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
551 | * @__acpi_driver: acpi_driver struct | |
552 | * | |
553 | * Helper macro for ACPI drivers which do not do anything special in module | |
554 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
555 | * use this macro once, and calling it replaces module_init() and module_exit() | |
556 | */ | |
557 | #define module_acpi_driver(__acpi_driver) \ | |
558 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
559 | acpi_bus_unregister_driver) | |
560 | ||
4e10d12a DSL |
561 | /* |
562 | * Bind physical devices with ACPI devices | |
563 | */ | |
4e10d12a | 564 | struct acpi_bus_type { |
4be44fcd | 565 | struct list_head list; |
53540098 RW |
566 | const char *name; |
567 | bool (*match)(struct device *dev); | |
e3f02c52 | 568 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
569 | void (*setup)(struct device *); |
570 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
571 | }; |
572 | int register_acpi_bus_type(struct acpi_bus_type *); | |
573 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
f1b1dc84 ZR |
574 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
575 | int acpi_unbind_one(struct device *dev); | |
22c13f9d | 576 | |
76d56de5 | 577 | struct acpi_pci_root { |
76d56de5 | 578 | struct acpi_device * device; |
76d56de5 AC |
579 | struct pci_bus *bus; |
580 | u16 segment; | |
6ad95513 | 581 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
582 | |
583 | u32 osc_support_set; /* _OSC state of support bits */ | |
584 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 585 | phys_addr_t mcfg_addr; |
76d56de5 AC |
586 | }; |
587 | ||
4e10d12a | 588 | /* helper */ |
d9fef0c4 | 589 | |
b84f196d SS |
590 | bool acpi_dma_supported(struct acpi_device *adev); |
591 | enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); | |
c04ac679 LP |
592 | int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, |
593 | u64 *size); | |
5a1bb638 | 594 | int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); |
d760a1ba | 595 | void acpi_dma_deconfigure(struct device *dev); |
b84f196d | 596 | |
d9fef0c4 RW |
597 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, |
598 | u64 address, bool check_children); | |
27558203 | 599 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 600 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 601 | |
b67ea761 RW |
602 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
603 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
604 | ||
b7ecf663 HG |
605 | #ifdef CONFIG_X86 |
606 | bool acpi_device_always_present(struct acpi_device *adev); | |
607 | #else | |
608 | static inline bool acpi_device_always_present(struct acpi_device *adev) | |
609 | { | |
610 | return false; | |
611 | } | |
612 | #endif | |
613 | ||
aa338601 | 614 | #ifdef CONFIG_PM |
33e4f80e | 615 | void acpi_pm_wakeup_event(struct device *dev); |
c072530f | 616 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
64fd1c70 | 617 | void (*func)(struct acpi_device_wakeup_context *context)); |
c072530f | 618 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); |
8370c2dc | 619 | bool acpi_pm_device_can_wakeup(struct device *dev); |
ee85f543 | 620 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
4d183d04 | 621 | int acpi_pm_set_device_wakeup(struct device *dev, bool enable); |
1ba51a7c | 622 | int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable); |
761afb86 | 623 | #else |
33e4f80e RW |
624 | static inline void acpi_pm_wakeup_event(struct device *dev) |
625 | { | |
626 | } | |
ec2cd81c | 627 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
c072530f | 628 | struct device *dev, |
33e4f80e | 629 | void (*func)(struct acpi_device_wakeup_context *context)) |
ec2cd81c RW |
630 | { |
631 | return AE_SUPPORT; | |
632 | } | |
c072530f | 633 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) |
ec2cd81c RW |
634 | { |
635 | return AE_SUPPORT; | |
636 | } | |
8370c2dc RW |
637 | static inline bool acpi_pm_device_can_wakeup(struct device *dev) |
638 | { | |
639 | return false; | |
640 | } | |
b25c77ef | 641 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
296699de RW |
642 | { |
643 | if (p) | |
644 | *p = ACPI_STATE_D0; | |
b25c77ef | 645 | |
8ad928d5 RW |
646 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
647 | m : ACPI_STATE_D0; | |
296699de | 648 | } |
4d183d04 | 649 | static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable) |
f7a1b860 DH |
650 | { |
651 | return -ENODEV; | |
652 | } | |
1ba51a7c RW |
653 | static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable) |
654 | { | |
655 | return -ENODEV; | |
656 | } | |
761afb86 | 657 | #endif |
fd4aff1a | 658 | |
99926a8c DR |
659 | #ifdef CONFIG_ACPI_SLEEP |
660 | u32 acpi_target_system_state(void); | |
661 | #else | |
662 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
663 | #endif | |
664 | ||
078eb126 RW |
665 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
666 | { | |
667 | return adev->flags.power_manageable; | |
668 | } | |
669 | ||
670 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
671 | { | |
672 | return adev->wakeup.flags.valid; | |
673 | } | |
674 | ||
1399dfcd AL |
675 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
676 | { | |
cd7f84c0 KX |
677 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || |
678 | ((acpi_gbl_FADT.header.revision < 6) && | |
679 | adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); | |
1399dfcd AL |
680 | } |
681 | ||
66886d6f MG |
682 | #else /* CONFIG_ACPI */ |
683 | ||
7ae30986 LB |
684 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
685 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 686 | |
fd350943 | 687 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
688 | |
689 | #endif /*__ACPI_BUS_H__*/ |