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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 | * | |
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, | |
108 | ACPI_BUS_DEVICE_TYPE_COUNT | |
109 | }; | |
110 | ||
111 | struct acpi_driver; | |
112 | struct acpi_device; | |
113 | ||
ca589f94 RW |
114 | /* |
115 | * ACPI Scan Handler | |
116 | * ----------------- | |
117 | */ | |
118 | ||
a33ec399 | 119 | struct acpi_hotplug_profile { |
3f8055c3 | 120 | struct kobject kobj; |
3338db00 | 121 | int (*scan_dependent)(struct acpi_device *adev); |
8ab17fc9 | 122 | void (*notify_online)(struct acpi_device *adev); |
d22ddcbc RW |
123 | bool enabled:1; |
124 | bool demand_offline:1; | |
a33ec399 RW |
125 | }; |
126 | ||
3f8055c3 RW |
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 | ||
ca589f94 RW |
133 | struct acpi_scan_handler { |
134 | const struct acpi_device_id *ids; | |
135 | struct list_head list_node; | |
636c19d3 | 136 | bool (*match)(const char *idstr, const struct acpi_device_id **matchid); |
ca589f94 RW |
137 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); |
138 | void (*detach)(struct acpi_device *dev); | |
9cb32acf RW |
139 | void (*bind)(struct device *phys_dev); |
140 | void (*unbind)(struct device *phys_dev); | |
a33ec399 | 141 | struct acpi_hotplug_profile hotplug; |
ca589f94 RW |
142 | }; |
143 | ||
3c2cc7ff RW |
144 | /* |
145 | * ACPI Hotplug Context | |
146 | * -------------------- | |
147 | */ | |
148 | ||
149 | struct acpi_hotplug_context { | |
150 | struct acpi_device *self; | |
be27b3dc RW |
151 | int (*notify)(struct acpi_device *, u32); |
152 | void (*uevent)(struct acpi_device *, u32); | |
59b42fa0 | 153 | void (*fixup)(struct acpi_device *); |
3c2cc7ff RW |
154 | }; |
155 | ||
1da177e4 LT |
156 | /* |
157 | * ACPI Driver | |
158 | * ----------- | |
159 | */ | |
160 | ||
4be44fcd | 161 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 162 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 163 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
164 | |
165 | struct acpi_device_ops { | |
4be44fcd LB |
166 | acpi_op_add add; |
167 | acpi_op_remove remove; | |
46ec8598 | 168 | acpi_op_notify notify; |
1da177e4 LT |
169 | }; |
170 | ||
6d278131 BH |
171 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
172 | ||
1da177e4 | 173 | struct acpi_driver { |
4be44fcd LB |
174 | char name[80]; |
175 | char class[80]; | |
8c8eb78f | 176 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 177 | unsigned int flags; |
4be44fcd | 178 | struct acpi_device_ops ops; |
d43ec68e | 179 | struct device_driver drv; |
1890a97a | 180 | struct module *owner; |
1da177e4 LT |
181 | }; |
182 | ||
183 | /* | |
184 | * ACPI Device | |
185 | * ----------- | |
186 | */ | |
187 | ||
188 | /* Status (_STA) */ | |
189 | ||
190 | struct acpi_device_status { | |
4be44fcd LB |
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; | |
1da177e4 LT |
197 | }; |
198 | ||
1da177e4 LT |
199 | /* Flags */ |
200 | ||
201 | struct acpi_device_flags { | |
4be44fcd | 202 | u32 dynamic_status:1; |
4be44fcd LB |
203 | u32 removable:1; |
204 | u32 ejectable:1; | |
4be44fcd | 205 | u32 power_manageable:1; |
209d3b17 | 206 | u32 match_driver:1; |
202317a5 RW |
207 | u32 initialized:1; |
208 | u32 visited:1; | |
3c2cc7ff | 209 | u32 hotplug_notify:1; |
1e2380cd | 210 | u32 is_dock_station:1; |
5c53b262 | 211 | u32 of_compatible_ok:1; |
d0562674 SS |
212 | u32 coherent_dma:1; |
213 | u32 cca_seen:1; | |
e4330d8b JN |
214 | u32 spi_i2c_slave:1; |
215 | u32 reserved:19; | |
1da177e4 LT |
216 | }; |
217 | ||
1da177e4 LT |
218 | /* File System */ |
219 | ||
220 | struct acpi_device_dir { | |
4be44fcd | 221 | struct proc_dir_entry *entry; |
1da177e4 LT |
222 | }; |
223 | ||
224 | #define acpi_device_dir(d) ((d)->dir.entry) | |
225 | ||
1da177e4 LT |
226 | /* Plug and Play */ |
227 | ||
24c5c4c2 | 228 | typedef char acpi_bus_id[8]; |
4be44fcd | 229 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
230 | typedef char acpi_device_name[40]; |
231 | typedef char acpi_device_class[20]; | |
1da177e4 | 232 | |
7f47fa6c BH |
233 | struct acpi_hardware_id { |
234 | struct list_head list; | |
844142c3 | 235 | const char *id; |
7f47fa6c BH |
236 | }; |
237 | ||
d4e1a692 TK |
238 | struct acpi_pnp_type { |
239 | u32 hardware_id:1; | |
240 | u32 bus_address:1; | |
549e6845 RW |
241 | u32 platform_id:1; |
242 | u32 reserved:29; | |
d4e1a692 TK |
243 | }; |
244 | ||
1da177e4 | 245 | struct acpi_device_pnp { |
d4e1a692 TK |
246 | acpi_bus_id bus_id; /* Object name */ |
247 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 248 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 249 | char *unique_id; /* _UID */ |
7f47fa6c | 250 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
251 | acpi_device_name device_name; /* Driver-determined */ |
252 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 253 | union acpi_object *str_obj; /* unicode string for _STR method */ |
1da177e4 LT |
254 | }; |
255 | ||
256 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
257 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 258 | const char *acpi_device_hid(struct acpi_device *device); |
359597cb | 259 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
1da177e4 LT |
260 | #define acpi_device_name(d) ((d)->pnp.device_name) |
261 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
262 | ||
1da177e4 LT |
263 | /* Power Management */ |
264 | ||
265 | struct acpi_device_power_flags { | |
4be44fcd LB |
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 */ | |
644f17ad | 270 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
f25c0ae2 RW |
271 | u32 dsw_present:1; /* _DSW present? */ |
272 | u32 reserved:26; | |
1da177e4 LT |
273 | }; |
274 | ||
275 | struct acpi_device_power_state { | |
276 | struct { | |
4be44fcd LB |
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) */ | |
0b224527 | 283 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
284 | }; |
285 | ||
286 | struct acpi_device_power { | |
4be44fcd | 287 | int state; /* Current state */ |
1da177e4 | 288 | struct acpi_device_power_flags flags; |
b4a03b9a | 289 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
290 | }; |
291 | ||
1da177e4 LT |
292 | /* Performance Management */ |
293 | ||
294 | struct acpi_device_perf_flags { | |
4be44fcd | 295 | u8 reserved:8; |
1da177e4 LT |
296 | }; |
297 | ||
298 | struct acpi_device_perf_state { | |
299 | struct { | |
4be44fcd LB |
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) */ | |
1da177e4 LT |
306 | }; |
307 | ||
308 | struct acpi_device_perf { | |
4be44fcd | 309 | int state; |
1da177e4 | 310 | struct acpi_device_perf_flags flags; |
4be44fcd | 311 | int state_count; |
1da177e4 LT |
312 | struct acpi_device_perf_state *states; |
313 | }; | |
314 | ||
315 | /* Wakeup Management */ | |
316 | struct acpi_device_wakeup_flags { | |
4be44fcd | 317 | u8 valid:1; /* Can successfully enable wakeup? */ |
b67ea761 | 318 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
175f8e26 | 319 | u8 enabled:1; /* Enabled for wakeup */ |
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; |
1da177e4 LT |
336 | }; |
337 | ||
1033f904 | 338 | struct acpi_device_physical_node { |
007ccfcf | 339 | unsigned int node_id; |
1033f904 LT |
340 | struct list_head node; |
341 | struct device *dev; | |
683058e3 | 342 | bool put_online:1; |
1033f904 | 343 | }; |
1da177e4 | 344 | |
ffdcd955 MW |
345 | /* ACPI Device Specific Data (_DSD) */ |
346 | struct acpi_device_data { | |
347 | const union acpi_object *pointer; | |
348 | const union acpi_object *properties; | |
733e6251 | 349 | const union acpi_object *of_compatible; |
445b0eb0 | 350 | struct list_head subnodes; |
ffdcd955 MW |
351 | }; |
352 | ||
f028d524 RW |
353 | struct acpi_gpio_mapping; |
354 | ||
1033f904 | 355 | /* Device */ |
1da177e4 | 356 | struct acpi_device { |
caaa6efb BH |
357 | int device_type; |
358 | acpi_handle handle; /* no handle for fixed hardware */ | |
8a0662d9 | 359 | struct fwnode_handle fwnode; |
4be44fcd LB |
360 | struct acpi_device *parent; |
361 | struct list_head children; | |
362 | struct list_head node; | |
363 | struct list_head wakeup_list; | |
d783156e | 364 | struct list_head del_list; |
1da177e4 LT |
365 | struct acpi_device_status status; |
366 | struct acpi_device_flags flags; | |
4be44fcd | 367 | struct acpi_device_pnp pnp; |
1da177e4 LT |
368 | struct acpi_device_power power; |
369 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
370 | struct acpi_device_perf performance; |
371 | struct acpi_device_dir dir; | |
ffdcd955 | 372 | struct acpi_device_data data; |
ca589f94 | 373 | struct acpi_scan_handler *handler; |
3c2cc7ff | 374 | struct acpi_hotplug_context *hp; |
4be44fcd | 375 | struct acpi_driver *driver; |
f028d524 | 376 | const struct acpi_gpio_mapping *driver_gpios; |
4be44fcd | 377 | void *driver_data; |
5b327265 | 378 | struct device dev; |
007ccfcf | 379 | unsigned int physical_node_count; |
40e7fcb1 | 380 | unsigned int dep_unmet; |
1033f904 LT |
381 | struct list_head physical_node_list; |
382 | struct mutex physical_node_lock; | |
b1c0f99b | 383 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
384 | }; |
385 | ||
445b0eb0 RW |
386 | /* Non-device subnode */ |
387 | struct acpi_data_node { | |
388 | const char *name; | |
263b4c1a | 389 | acpi_handle handle; |
445b0eb0 | 390 | struct fwnode_handle fwnode; |
dfa672fb | 391 | struct fwnode_handle *parent; |
445b0eb0 RW |
392 | struct acpi_device_data data; |
393 | struct list_head sibling; | |
263b4c1a RW |
394 | struct kobject kobj; |
395 | struct completion kobj_done; | |
445b0eb0 RW |
396 | }; |
397 | ||
db3e50f3 SA |
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 | ||
8a0662d9 | 402 | static inline bool is_acpi_node(struct fwnode_handle *fwnode) |
3a7a2ab8 | 403 | { |
db3e50f3 SA |
404 | return !IS_ERR_OR_NULL(fwnode) && |
405 | (fwnode->ops == &acpi_device_fwnode_ops | |
406 | || fwnode->ops == &acpi_data_fwnode_ops); | |
3a7a2ab8 RW |
407 | } |
408 | ||
409 | static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) | |
8a0662d9 | 410 | { |
db3e50f3 SA |
411 | return !IS_ERR_OR_NULL(fwnode) && |
412 | fwnode->ops == &acpi_device_fwnode_ops; | |
8a0662d9 RW |
413 | } |
414 | ||
3a7a2ab8 | 415 | static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) |
8a0662d9 | 416 | { |
3a7a2ab8 | 417 | return is_acpi_device_node(fwnode) ? |
ce793486 | 418 | container_of(fwnode, struct acpi_device, fwnode) : NULL; |
8a0662d9 RW |
419 | } |
420 | ||
3a7a2ab8 RW |
421 | static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) |
422 | { | |
db3e50f3 | 423 | return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &acpi_data_fwnode_ops; |
3a7a2ab8 RW |
424 | } |
425 | ||
426 | static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) | |
427 | { | |
428 | return is_acpi_data_node(fwnode) ? | |
429 | container_of(fwnode, struct acpi_data_node, fwnode) : NULL; | |
430 | } | |
431 | ||
db3e50f3 SA |
432 | static inline bool is_acpi_static_node(struct fwnode_handle *fwnode) |
433 | { | |
434 | return !IS_ERR_OR_NULL(fwnode) && | |
435 | fwnode->ops == &acpi_static_fwnode_ops; | |
436 | } | |
437 | ||
613e9721 AT |
438 | static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, |
439 | const char *name) | |
440 | { | |
441 | return is_acpi_data_node(fwnode) ? | |
442 | (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; | |
443 | } | |
444 | ||
8a0662d9 RW |
445 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) |
446 | { | |
447 | return &adev->fwnode; | |
448 | } | |
449 | ||
db89b4f0 PM |
450 | static inline void *acpi_driver_data(struct acpi_device *d) |
451 | { | |
452 | return d->driver_data; | |
453 | } | |
454 | ||
d43ec68e PM |
455 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
456 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 457 | |
25db115b RW |
458 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
459 | { | |
460 | *((u32 *)&adev->status) = sta; | |
461 | } | |
462 | ||
3c2cc7ff | 463 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
ba574dc8 | 464 | struct acpi_hotplug_context *hp) |
3c2cc7ff RW |
465 | { |
466 | hp->self = adev; | |
3c2cc7ff RW |
467 | adev->hp = hp; |
468 | } | |
469 | ||
5d513205 RW |
470 | void acpi_initialize_hp_context(struct acpi_device *adev, |
471 | struct acpi_hotplug_context *hp, | |
472 | int (*notify)(struct acpi_device *, u32), | |
473 | void (*uevent)(struct acpi_device *, u32)); | |
474 | ||
55955aad DB |
475 | /* acpi_device.dev.bus == &acpi_bus_type */ |
476 | extern struct bus_type acpi_bus_type; | |
477 | ||
1da177e4 LT |
478 | /* |
479 | * Events | |
480 | * ------ | |
481 | */ | |
482 | ||
483 | struct acpi_bus_event { | |
4be44fcd LB |
484 | struct list_head node; |
485 | acpi_device_class device_class; | |
486 | acpi_bus_id bus_id; | |
487 | u32 type; | |
488 | u32 data; | |
1da177e4 LT |
489 | }; |
490 | ||
99e0d2fc | 491 | extern struct kobject *acpi_kobj; |
962ce8ca | 492 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 493 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 494 | int acpi_bus_get_private_data(acpi_handle, void **); |
72013795 LT |
495 | int acpi_bus_attach_private_data(acpi_handle, void *); |
496 | void acpi_bus_detach_private_data(acpi_handle); | |
9ee85241 ZR |
497 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
498 | extern int register_acpi_notifier(struct notifier_block *); | |
499 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 500 | |
1da177e4 LT |
501 | /* |
502 | * External Functions | |
503 | */ | |
504 | ||
505 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
506 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
507 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
508 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
509 | unsigned long long *sta); | |
4be44fcd | 510 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 511 | |
4be44fcd | 512 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 513 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 514 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 515 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 516 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 517 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 518 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
2bb3a2bf | 519 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
3737b2b1 | 520 | bool acpi_bus_power_manageable(acpi_handle handle); |
ec4602a9 RW |
521 | |
522 | #ifdef CONFIG_PM | |
eb9d0fe4 | 523 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
524 | #else |
525 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
526 | #endif | |
9ce4e607 | 527 | |
3757b948 RW |
528 | void acpi_scan_lock_acquire(void); |
529 | void acpi_scan_lock_release(void); | |
e525506f RW |
530 | void acpi_lock_hp_context(void); |
531 | void acpi_unlock_hp_context(void); | |
ca589f94 | 532 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 533 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 534 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 535 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 536 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 537 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
538 | int acpi_match_device_ids(struct acpi_device *device, |
539 | const struct acpi_device_id *ids); | |
51ede5d9 DD |
540 | void acpi_set_modalias(struct acpi_device *adev, const char *default_id, |
541 | char *modalias, size_t len); | |
1da177e4 LT |
542 | int acpi_create_dir(struct acpi_device *); |
543 | void acpi_remove_dir(struct acpi_device *); | |
544 | ||
202317a5 RW |
545 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
546 | { | |
547 | return adev && adev->flags.initialized && adev->flags.visited; | |
548 | } | |
549 | ||
0d2cf8f5 MW |
550 | /** |
551 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
552 | * @__acpi_driver: acpi_driver struct | |
553 | * | |
554 | * Helper macro for ACPI drivers which do not do anything special in module | |
555 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
556 | * use this macro once, and calling it replaces module_init() and module_exit() | |
557 | */ | |
558 | #define module_acpi_driver(__acpi_driver) \ | |
559 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
560 | acpi_bus_unregister_driver) | |
561 | ||
4e10d12a DSL |
562 | /* |
563 | * Bind physical devices with ACPI devices | |
564 | */ | |
4e10d12a | 565 | struct acpi_bus_type { |
4be44fcd | 566 | struct list_head list; |
53540098 RW |
567 | const char *name; |
568 | bool (*match)(struct device *dev); | |
e3f02c52 | 569 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
570 | void (*setup)(struct device *); |
571 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
572 | }; |
573 | int register_acpi_bus_type(struct acpi_bus_type *); | |
574 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
f1b1dc84 ZR |
575 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
576 | int acpi_unbind_one(struct device *dev); | |
22c13f9d | 577 | |
76d56de5 | 578 | struct acpi_pci_root { |
76d56de5 | 579 | struct acpi_device * device; |
76d56de5 AC |
580 | struct pci_bus *bus; |
581 | u16 segment; | |
6ad95513 | 582 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
583 | |
584 | u32 osc_support_set; /* _OSC state of support bits */ | |
585 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 586 | phys_addr_t mcfg_addr; |
76d56de5 AC |
587 | }; |
588 | ||
4e10d12a | 589 | /* helper */ |
d9fef0c4 | 590 | |
b84f196d SS |
591 | bool acpi_dma_supported(struct acpi_device *adev); |
592 | enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); | |
5a1bb638 | 593 | int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); |
d760a1ba | 594 | void acpi_dma_deconfigure(struct device *dev); |
b84f196d | 595 | |
d9fef0c4 RW |
596 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, |
597 | u64 address, bool check_children); | |
27558203 | 598 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 599 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 600 | |
b67ea761 RW |
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 | ||
b7ecf663 HG |
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 | ||
aa338601 | 613 | #ifdef CONFIG_PM |
33e4f80e | 614 | void acpi_pm_wakeup_event(struct device *dev); |
c072530f | 615 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
64fd1c70 | 616 | void (*func)(struct acpi_device_wakeup_context *context)); |
c072530f | 617 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); |
8370c2dc | 618 | bool acpi_pm_device_can_wakeup(struct device *dev); |
ee85f543 | 619 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
4d183d04 | 620 | int acpi_pm_set_device_wakeup(struct device *dev, bool enable); |
761afb86 | 621 | #else |
33e4f80e RW |
622 | static inline void acpi_pm_wakeup_event(struct device *dev) |
623 | { | |
624 | } | |
ec2cd81c | 625 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
c072530f | 626 | struct device *dev, |
33e4f80e | 627 | void (*func)(struct acpi_device_wakeup_context *context)) |
ec2cd81c RW |
628 | { |
629 | return AE_SUPPORT; | |
630 | } | |
c072530f | 631 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) |
ec2cd81c RW |
632 | { |
633 | return AE_SUPPORT; | |
634 | } | |
8370c2dc RW |
635 | static inline bool acpi_pm_device_can_wakeup(struct device *dev) |
636 | { | |
637 | return false; | |
638 | } | |
b25c77ef | 639 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
296699de RW |
640 | { |
641 | if (p) | |
642 | *p = ACPI_STATE_D0; | |
b25c77ef | 643 | |
8ad928d5 RW |
644 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
645 | m : ACPI_STATE_D0; | |
296699de | 646 | } |
4d183d04 | 647 | static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable) |
f7a1b860 DH |
648 | { |
649 | return -ENODEV; | |
650 | } | |
761afb86 | 651 | #endif |
fd4aff1a | 652 | |
99926a8c DR |
653 | #ifdef CONFIG_ACPI_SLEEP |
654 | u32 acpi_target_system_state(void); | |
655 | #else | |
656 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
657 | #endif | |
658 | ||
078eb126 RW |
659 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
660 | { | |
661 | return adev->flags.power_manageable; | |
662 | } | |
663 | ||
664 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
665 | { | |
666 | return adev->wakeup.flags.valid; | |
667 | } | |
668 | ||
1399dfcd AL |
669 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
670 | { | |
cd7f84c0 KX |
671 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || |
672 | ((acpi_gbl_FADT.header.revision < 6) && | |
673 | adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); | |
1399dfcd AL |
674 | } |
675 | ||
66886d6f MG |
676 | #else /* CONFIG_ACPI */ |
677 | ||
7ae30986 LB |
678 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
679 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 680 | |
fd350943 | 681 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
682 | |
683 | #endif /*__ACPI_BUS_H__*/ |