Commit | Line | Data |
---|---|---|
c942fddf | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $) | |
4 | * | |
5 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> | |
6 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef __ACPI_BUS_H__ | |
10 | #define __ACPI_BUS_H__ | |
11 | ||
5b327265 | 12 | #include <linux/device.h> |
8a0662d9 | 13 | #include <linux/property.h> |
1da177e4 | 14 | |
1da177e4 LT |
15 | /* TBD: Make dynamic */ |
16 | #define ACPI_MAX_HANDLES 10 | |
17 | struct acpi_handle_list { | |
4be44fcd LB |
18 | u32 count; |
19 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
20 | }; |
21 | ||
1da177e4 LT |
22 | /* acpi_utils.h */ |
23 | acpi_status | |
4be44fcd LB |
24 | acpi_extract_package(union acpi_object *package, |
25 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 26 | acpi_status |
4be44fcd LB |
27 | acpi_evaluate_integer(acpi_handle handle, |
28 | acpi_string pathname, | |
27663c58 | 29 | struct acpi_object_list *arguments, unsigned long long *data); |
1da177e4 | 30 | acpi_status |
4be44fcd LB |
31 | acpi_evaluate_reference(acpi_handle handle, |
32 | acpi_string pathname, | |
33 | struct acpi_object_list *arguments, | |
34 | struct acpi_handle_list *list); | |
275c58d7 | 35 | acpi_status |
05730c19 JL |
36 | acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, |
37 | struct acpi_buffer *status_buf); | |
1da177e4 | 38 | |
38ac0f1b | 39 | acpi_status |
8ede06ab | 40 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
952c63e9 JL |
41 | |
42 | bool acpi_has_method(acpi_handle handle, char *name); | |
0db98202 JL |
43 | acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, |
44 | u64 arg); | |
7d2421f8 JL |
45 | acpi_status acpi_evaluate_ej0(acpi_handle handle); |
46 | acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); | |
ebf4df8d JL |
47 | bool acpi_ata_match(acpi_handle handle); |
48 | bool acpi_bay_match(acpi_handle handle); | |
49 | bool acpi_dock_match(acpi_handle handle); | |
952c63e9 | 50 | |
94116f81 AS |
51 | bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs); |
52 | union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, | |
c7e16e52 | 53 | u64 rev, u64 func, union acpi_object *argv4); |
a65ac520 JL |
54 | |
55 | static inline union acpi_object * | |
94116f81 AS |
56 | acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, |
57 | u64 func, union acpi_object *argv4, | |
58 | acpi_object_type type) | |
a65ac520 JL |
59 | { |
60 | union acpi_object *obj; | |
61 | ||
94116f81 | 62 | obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4); |
a65ac520 JL |
63 | if (obj && obj->type != type) { |
64 | ACPI_FREE(obj); | |
65 | obj = NULL; | |
66 | } | |
67 | ||
68 | return obj; | |
69 | } | |
70 | ||
71 | #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ | |
72 | { \ | |
73 | .package.type = ACPI_TYPE_PACKAGE, \ | |
74 | .package.count = (cnt), \ | |
75 | .package.elements = (eles) \ | |
76 | } | |
77 | ||
c68ae33e | 78 | bool acpi_dev_found(const char *hid); |
8661423e | 79 | bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); |
2d12b6b3 | 80 | |
817b4d64 AS |
81 | struct acpi_device * |
82 | acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv); | |
83 | ||
76f58584 | 84 | #ifdef CONFIG_ACPI |
1da177e4 LT |
85 | |
86 | #include <linux/proc_fs.h> | |
87 | ||
88 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 89 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 | 90 | |
1da177e4 | 91 | enum acpi_bus_device_type { |
4be44fcd | 92 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
93 | ACPI_BUS_TYPE_POWER, |
94 | ACPI_BUS_TYPE_PROCESSOR, | |
95 | ACPI_BUS_TYPE_THERMAL, | |
1da177e4 LT |
96 | ACPI_BUS_TYPE_POWER_BUTTON, |
97 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
a64a62ce | 98 | ACPI_BUS_TYPE_ECDT_EC, |
1da177e4 LT |
99 | ACPI_BUS_DEVICE_TYPE_COUNT |
100 | }; | |
101 | ||
102 | struct acpi_driver; | |
103 | struct acpi_device; | |
104 | ||
ca589f94 RW |
105 | /* |
106 | * ACPI Scan Handler | |
107 | * ----------------- | |
108 | */ | |
109 | ||
a33ec399 | 110 | struct acpi_hotplug_profile { |
3f8055c3 | 111 | struct kobject kobj; |
3338db00 | 112 | int (*scan_dependent)(struct acpi_device *adev); |
8ab17fc9 | 113 | void (*notify_online)(struct acpi_device *adev); |
d22ddcbc RW |
114 | bool enabled:1; |
115 | bool demand_offline:1; | |
a33ec399 RW |
116 | }; |
117 | ||
3f8055c3 RW |
118 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( |
119 | struct kobject *kobj) | |
120 | { | |
121 | return container_of(kobj, struct acpi_hotplug_profile, kobj); | |
122 | } | |
123 | ||
ca589f94 RW |
124 | struct acpi_scan_handler { |
125 | const struct acpi_device_id *ids; | |
126 | struct list_head list_node; | |
636c19d3 | 127 | bool (*match)(const char *idstr, const struct acpi_device_id **matchid); |
ca589f94 RW |
128 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); |
129 | void (*detach)(struct acpi_device *dev); | |
9cb32acf RW |
130 | void (*bind)(struct device *phys_dev); |
131 | void (*unbind)(struct device *phys_dev); | |
a33ec399 | 132 | struct acpi_hotplug_profile hotplug; |
ca589f94 RW |
133 | }; |
134 | ||
3c2cc7ff RW |
135 | /* |
136 | * ACPI Hotplug Context | |
137 | * -------------------- | |
138 | */ | |
139 | ||
140 | struct acpi_hotplug_context { | |
141 | struct acpi_device *self; | |
be27b3dc RW |
142 | int (*notify)(struct acpi_device *, u32); |
143 | void (*uevent)(struct acpi_device *, u32); | |
59b42fa0 | 144 | void (*fixup)(struct acpi_device *); |
3c2cc7ff RW |
145 | }; |
146 | ||
1da177e4 LT |
147 | /* |
148 | * ACPI Driver | |
149 | * ----------- | |
150 | */ | |
151 | ||
4be44fcd | 152 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 153 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 154 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
155 | |
156 | struct acpi_device_ops { | |
4be44fcd LB |
157 | acpi_op_add add; |
158 | acpi_op_remove remove; | |
46ec8598 | 159 | acpi_op_notify notify; |
1da177e4 LT |
160 | }; |
161 | ||
6d278131 BH |
162 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
163 | ||
1da177e4 | 164 | struct acpi_driver { |
4be44fcd LB |
165 | char name[80]; |
166 | char class[80]; | |
8c8eb78f | 167 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 168 | unsigned int flags; |
4be44fcd | 169 | struct acpi_device_ops ops; |
d43ec68e | 170 | struct device_driver drv; |
1890a97a | 171 | struct module *owner; |
1da177e4 LT |
172 | }; |
173 | ||
174 | /* | |
175 | * ACPI Device | |
176 | * ----------- | |
177 | */ | |
178 | ||
179 | /* Status (_STA) */ | |
180 | ||
181 | struct acpi_device_status { | |
4be44fcd LB |
182 | u32 present:1; |
183 | u32 enabled:1; | |
184 | u32 show_in_ui:1; | |
185 | u32 functional:1; | |
186 | u32 battery_present:1; | |
187 | u32 reserved:27; | |
1da177e4 LT |
188 | }; |
189 | ||
1da177e4 LT |
190 | /* Flags */ |
191 | ||
192 | struct acpi_device_flags { | |
4be44fcd | 193 | u32 dynamic_status:1; |
4be44fcd LB |
194 | u32 removable:1; |
195 | u32 ejectable:1; | |
4be44fcd | 196 | u32 power_manageable:1; |
209d3b17 | 197 | u32 match_driver:1; |
202317a5 RW |
198 | u32 initialized:1; |
199 | u32 visited:1; | |
3c2cc7ff | 200 | u32 hotplug_notify:1; |
1e2380cd | 201 | u32 is_dock_station:1; |
5c53b262 | 202 | u32 of_compatible_ok:1; |
d0562674 SS |
203 | u32 coherent_dma:1; |
204 | u32 cca_seen:1; | |
d87fb091 | 205 | u32 enumeration_by_parent:1; |
e4330d8b | 206 | u32 reserved:19; |
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]; |
ca6f998c | 220 | typedef u64 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; | |
844142c3 | 226 | const char *id; |
7f47fa6c BH |
227 | }; |
228 | ||
d4e1a692 TK |
229 | struct acpi_pnp_type { |
230 | u32 hardware_id:1; | |
231 | u32 bus_address:1; | |
549e6845 RW |
232 | u32 platform_id:1; |
233 | u32 reserved:29; | |
d4e1a692 TK |
234 | }; |
235 | ||
1da177e4 | 236 | struct acpi_device_pnp { |
d4e1a692 TK |
237 | acpi_bus_id bus_id; /* Object name */ |
238 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 239 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 240 | char *unique_id; /* _UID */ |
7f47fa6c | 241 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
242 | acpi_device_name device_name; /* Driver-determined */ |
243 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 244 | union acpi_object *str_obj; /* unicode string for _STR method */ |
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); |
359597cb | 250 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
1da177e4 LT |
251 | #define acpi_device_name(d) ((d)->pnp.device_name) |
252 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
253 | ||
1da177e4 LT |
254 | /* Power Management */ |
255 | ||
256 | struct acpi_device_power_flags { | |
4be44fcd LB |
257 | u32 explicit_get:1; /* _PSC present? */ |
258 | u32 power_resources:1; /* Power resources */ | |
259 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
260 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
644f17ad | 261 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
f25c0ae2 RW |
262 | u32 dsw_present:1; /* _DSW present? */ |
263 | u32 reserved:26; | |
1da177e4 LT |
264 | }; |
265 | ||
266 | struct acpi_device_power_state { | |
267 | struct { | |
4be44fcd LB |
268 | u8 valid:1; |
269 | u8 explicit_set:1; /* _PSx present? */ | |
270 | u8 reserved:6; | |
271 | } flags; | |
272 | int power; /* % Power (compared to D0) */ | |
273 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 274 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
275 | }; |
276 | ||
277 | struct acpi_device_power { | |
4be44fcd | 278 | int state; /* Current state */ |
1da177e4 | 279 | struct acpi_device_power_flags flags; |
b4a03b9a | 280 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
281 | }; |
282 | ||
1da177e4 LT |
283 | /* Performance Management */ |
284 | ||
285 | struct acpi_device_perf_flags { | |
4be44fcd | 286 | u8 reserved:8; |
1da177e4 LT |
287 | }; |
288 | ||
289 | struct acpi_device_perf_state { | |
290 | struct { | |
4be44fcd LB |
291 | u8 valid:1; |
292 | u8 reserved:7; | |
293 | } flags; | |
294 | u8 power; /* % Power (compared to P0) */ | |
295 | u8 performance; /* % Performance ( " ) */ | |
296 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
297 | }; |
298 | ||
299 | struct acpi_device_perf { | |
4be44fcd | 300 | int state; |
1da177e4 | 301 | struct acpi_device_perf_flags flags; |
4be44fcd | 302 | int state_count; |
1da177e4 LT |
303 | struct acpi_device_perf_state *states; |
304 | }; | |
305 | ||
306 | /* Wakeup Management */ | |
307 | struct acpi_device_wakeup_flags { | |
4be44fcd | 308 | u8 valid:1; /* Can successfully enable wakeup? */ |
b67ea761 | 309 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
1da177e4 LT |
310 | }; |
311 | ||
c072530f | 312 | struct acpi_device_wakeup_context { |
64fd1c70 | 313 | void (*func)(struct acpi_device_wakeup_context *context); |
c072530f RW |
314 | struct device *dev; |
315 | }; | |
316 | ||
1da177e4 | 317 | struct acpi_device_wakeup { |
4be44fcd | 318 | acpi_handle gpe_device; |
439913ff LM |
319 | u64 gpe_number; |
320 | u64 sleep_state; | |
993cbe59 | 321 | struct list_head resources; |
4be44fcd | 322 | struct acpi_device_wakeup_flags flags; |
c072530f RW |
323 | struct acpi_device_wakeup_context context; |
324 | struct wakeup_source *ws; | |
9b83ccd2 | 325 | int prepare_count; |
99d8845e | 326 | int enable_count; |
1da177e4 LT |
327 | }; |
328 | ||
1033f904 | 329 | struct acpi_device_physical_node { |
007ccfcf | 330 | unsigned int node_id; |
1033f904 LT |
331 | struct list_head node; |
332 | struct device *dev; | |
683058e3 | 333 | bool put_online:1; |
1033f904 | 334 | }; |
1da177e4 | 335 | |
5f5e4890 MW |
336 | struct acpi_device_properties { |
337 | const guid_t *guid; | |
338 | const union acpi_object *properties; | |
339 | struct list_head list; | |
340 | }; | |
341 | ||
ffdcd955 MW |
342 | /* ACPI Device Specific Data (_DSD) */ |
343 | struct acpi_device_data { | |
344 | const union acpi_object *pointer; | |
5f5e4890 | 345 | struct list_head properties; |
733e6251 | 346 | const union acpi_object *of_compatible; |
445b0eb0 | 347 | struct list_head subnodes; |
ffdcd955 MW |
348 | }; |
349 | ||
f028d524 RW |
350 | struct acpi_gpio_mapping; |
351 | ||
1033f904 | 352 | /* Device */ |
1da177e4 | 353 | struct acpi_device { |
caaa6efb BH |
354 | int device_type; |
355 | acpi_handle handle; /* no handle for fixed hardware */ | |
8a0662d9 | 356 | struct fwnode_handle fwnode; |
4be44fcd LB |
357 | struct acpi_device *parent; |
358 | struct list_head children; | |
359 | struct list_head node; | |
360 | struct list_head wakeup_list; | |
d783156e | 361 | struct list_head del_list; |
1da177e4 LT |
362 | struct acpi_device_status status; |
363 | struct acpi_device_flags flags; | |
4be44fcd | 364 | struct acpi_device_pnp pnp; |
1da177e4 LT |
365 | struct acpi_device_power power; |
366 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
367 | struct acpi_device_perf performance; |
368 | struct acpi_device_dir dir; | |
ffdcd955 | 369 | struct acpi_device_data data; |
ca589f94 | 370 | struct acpi_scan_handler *handler; |
3c2cc7ff | 371 | struct acpi_hotplug_context *hp; |
4be44fcd | 372 | struct acpi_driver *driver; |
f028d524 | 373 | const struct acpi_gpio_mapping *driver_gpios; |
4be44fcd | 374 | void *driver_data; |
5b327265 | 375 | struct device dev; |
007ccfcf | 376 | unsigned int physical_node_count; |
40e7fcb1 | 377 | unsigned int dep_unmet; |
1033f904 LT |
378 | struct list_head physical_node_list; |
379 | struct mutex physical_node_lock; | |
b1c0f99b | 380 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
381 | }; |
382 | ||
445b0eb0 RW |
383 | /* Non-device subnode */ |
384 | struct acpi_data_node { | |
385 | const char *name; | |
263b4c1a | 386 | acpi_handle handle; |
445b0eb0 | 387 | struct fwnode_handle fwnode; |
dfa672fb | 388 | struct fwnode_handle *parent; |
445b0eb0 RW |
389 | struct acpi_device_data data; |
390 | struct list_head sibling; | |
263b4c1a RW |
391 | struct kobject kobj; |
392 | struct completion kobj_done; | |
445b0eb0 RW |
393 | }; |
394 | ||
db3e50f3 SA |
395 | extern const struct fwnode_operations acpi_device_fwnode_ops; |
396 | extern const struct fwnode_operations acpi_data_fwnode_ops; | |
397 | extern const struct fwnode_operations acpi_static_fwnode_ops; | |
3a7a2ab8 | 398 | |
9e987b70 JH |
399 | bool is_acpi_device_node(const struct fwnode_handle *fwnode); |
400 | bool is_acpi_data_node(const struct fwnode_handle *fwnode); | |
8a0662d9 | 401 | |
9e987b70 | 402 | static inline bool is_acpi_node(const struct fwnode_handle *fwnode) |
8a0662d9 | 403 | { |
9e987b70 | 404 | return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode)); |
8a0662d9 RW |
405 | } |
406 | ||
8b9d6802 SA |
407 | #define to_acpi_device_node(__fwnode) \ |
408 | ({ \ | |
409 | typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \ | |
410 | \ | |
411 | is_acpi_device_node(__to_acpi_device_node_fwnode) ? \ | |
412 | container_of(__to_acpi_device_node_fwnode, \ | |
413 | struct acpi_device, fwnode) : \ | |
414 | NULL; \ | |
415 | }) | |
416 | ||
8b9d6802 SA |
417 | #define to_acpi_data_node(__fwnode) \ |
418 | ({ \ | |
419 | typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \ | |
420 | \ | |
421 | is_acpi_data_node(__to_acpi_data_node_fwnode) ? \ | |
422 | container_of(__to_acpi_data_node_fwnode, \ | |
423 | struct acpi_data_node, fwnode) : \ | |
424 | NULL; \ | |
425 | }) | |
426 | ||
427 | static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode) | |
3a7a2ab8 | 428 | { |
db3e50f3 SA |
429 | return !IS_ERR_OR_NULL(fwnode) && |
430 | fwnode->ops == &acpi_static_fwnode_ops; | |
3a7a2ab8 RW |
431 | } |
432 | ||
8b9d6802 | 433 | static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, |
613e9721 AT |
434 | const char *name) |
435 | { | |
436 | return is_acpi_data_node(fwnode) ? | |
437 | (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; | |
438 | } | |
439 | ||
8a0662d9 RW |
440 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) |
441 | { | |
442 | return &adev->fwnode; | |
443 | } | |
444 | ||
db89b4f0 PM |
445 | static inline void *acpi_driver_data(struct acpi_device *d) |
446 | { | |
447 | return d->driver_data; | |
448 | } | |
449 | ||
d43ec68e PM |
450 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
451 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 452 | |
25db115b RW |
453 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
454 | { | |
455 | *((u32 *)&adev->status) = sta; | |
456 | } | |
457 | ||
3c2cc7ff | 458 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
ba574dc8 | 459 | struct acpi_hotplug_context *hp) |
3c2cc7ff RW |
460 | { |
461 | hp->self = adev; | |
3c2cc7ff RW |
462 | adev->hp = hp; |
463 | } | |
464 | ||
5d513205 RW |
465 | void acpi_initialize_hp_context(struct acpi_device *adev, |
466 | struct acpi_hotplug_context *hp, | |
467 | int (*notify)(struct acpi_device *, u32), | |
468 | void (*uevent)(struct acpi_device *, u32)); | |
469 | ||
55955aad DB |
470 | /* acpi_device.dev.bus == &acpi_bus_type */ |
471 | extern struct bus_type acpi_bus_type; | |
472 | ||
1da177e4 LT |
473 | /* |
474 | * Events | |
475 | * ------ | |
476 | */ | |
477 | ||
478 | struct acpi_bus_event { | |
4be44fcd LB |
479 | struct list_head node; |
480 | acpi_device_class device_class; | |
481 | acpi_bus_id bus_id; | |
482 | u32 type; | |
483 | u32 data; | |
1da177e4 LT |
484 | }; |
485 | ||
99e0d2fc | 486 | extern struct kobject *acpi_kobj; |
962ce8ca | 487 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 488 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 489 | int acpi_bus_get_private_data(acpi_handle, void **); |
72013795 LT |
490 | int acpi_bus_attach_private_data(acpi_handle, void *); |
491 | void acpi_bus_detach_private_data(acpi_handle); | |
9ee85241 ZR |
492 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
493 | extern int register_acpi_notifier(struct notifier_block *); | |
494 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 495 | |
1da177e4 LT |
496 | /* |
497 | * External Functions | |
498 | */ | |
499 | ||
500 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
501 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
502 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
503 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
504 | unsigned long long *sta); | |
4be44fcd | 505 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 506 | |
4be44fcd | 507 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 508 | const char *acpi_power_state_string(int state); |
078eb126 | 509 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 510 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 511 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 512 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
2bb3a2bf | 513 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
3737b2b1 | 514 | bool acpi_bus_power_manageable(acpi_handle handle); |
4533771c MW |
515 | int acpi_device_power_add_dependent(struct acpi_device *adev, |
516 | struct device *dev); | |
517 | void acpi_device_power_remove_dependent(struct acpi_device *adev, | |
518 | struct device *dev); | |
ec4602a9 RW |
519 | |
520 | #ifdef CONFIG_PM | |
eb9d0fe4 | 521 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
522 | #else |
523 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
524 | #endif | |
9ce4e607 | 525 | |
3757b948 RW |
526 | void acpi_scan_lock_acquire(void); |
527 | void acpi_scan_lock_release(void); | |
e525506f RW |
528 | void acpi_lock_hp_context(void); |
529 | void acpi_unlock_hp_context(void); | |
ca589f94 | 530 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 531 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 532 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 533 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 534 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 535 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
536 | int acpi_match_device_ids(struct acpi_device *device, |
537 | const struct acpi_device_id *ids); | |
51ede5d9 DD |
538 | void acpi_set_modalias(struct acpi_device *adev, const char *default_id, |
539 | char *modalias, size_t len); | |
1da177e4 LT |
540 | int acpi_create_dir(struct acpi_device *); |
541 | void acpi_remove_dir(struct acpi_device *); | |
542 | ||
202317a5 RW |
543 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
544 | { | |
545 | return adev && adev->flags.initialized && adev->flags.visited; | |
546 | } | |
547 | ||
0d2cf8f5 MW |
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 | ||
4e10d12a DSL |
560 | /* |
561 | * Bind physical devices with ACPI devices | |
562 | */ | |
4e10d12a | 563 | struct acpi_bus_type { |
4be44fcd | 564 | struct list_head list; |
53540098 RW |
565 | const char *name; |
566 | bool (*match)(struct device *dev); | |
e3f02c52 | 567 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
568 | void (*setup)(struct device *); |
569 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
570 | }; |
571 | int register_acpi_bus_type(struct acpi_bus_type *); | |
572 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
f1b1dc84 ZR |
573 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
574 | int acpi_unbind_one(struct device *dev); | |
22c13f9d | 575 | |
76d56de5 | 576 | struct acpi_pci_root { |
76d56de5 | 577 | struct acpi_device * device; |
76d56de5 AC |
578 | struct pci_bus *bus; |
579 | u16 segment; | |
6ad95513 | 580 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
581 | |
582 | u32 osc_support_set; /* _OSC state of support bits */ | |
583 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 584 | phys_addr_t mcfg_addr; |
76d56de5 AC |
585 | }; |
586 | ||
4e10d12a | 587 | /* helper */ |
d9fef0c4 | 588 | |
b84f196d SS |
589 | bool acpi_dma_supported(struct acpi_device *adev); |
590 | enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); | |
c04ac679 LP |
591 | int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, |
592 | u64 *size); | |
5a1bb638 | 593 | int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); |
b84f196d | 594 | |
d9fef0c4 RW |
595 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, |
596 | u64 address, bool check_children); | |
27558203 | 597 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 598 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 599 | |
b67ea761 RW |
600 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
601 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
602 | ||
b7ecf663 HG |
603 | #ifdef CONFIG_X86 |
604 | bool acpi_device_always_present(struct acpi_device *adev); | |
605 | #else | |
606 | static inline bool acpi_device_always_present(struct acpi_device *adev) | |
607 | { | |
608 | return false; | |
609 | } | |
610 | #endif | |
611 | ||
aa338601 | 612 | #ifdef CONFIG_PM |
33e4f80e | 613 | void acpi_pm_wakeup_event(struct device *dev); |
c072530f | 614 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
64fd1c70 | 615 | void (*func)(struct acpi_device_wakeup_context *context)); |
c072530f | 616 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); |
8370c2dc | 617 | bool acpi_pm_device_can_wakeup(struct device *dev); |
ee85f543 | 618 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
4d183d04 | 619 | int acpi_pm_set_device_wakeup(struct device *dev, bool enable); |
1ba51a7c | 620 | int acpi_pm_set_bridge_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 | } | |
1ba51a7c RW |
651 | static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable) |
652 | { | |
653 | return -ENODEV; | |
654 | } | |
761afb86 | 655 | #endif |
fd4aff1a | 656 | |
ad5a449b DC |
657 | #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT |
658 | bool acpi_sleep_state_supported(u8 sleep_state); | |
659 | #else | |
660 | static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; } | |
661 | #endif | |
662 | ||
99926a8c DR |
663 | #ifdef CONFIG_ACPI_SLEEP |
664 | u32 acpi_target_system_state(void); | |
665 | #else | |
666 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
667 | #endif | |
668 | ||
078eb126 RW |
669 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
670 | { | |
671 | return adev->flags.power_manageable; | |
672 | } | |
673 | ||
674 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
675 | { | |
676 | return adev->wakeup.flags.valid; | |
677 | } | |
678 | ||
1399dfcd AL |
679 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
680 | { | |
cd7f84c0 KX |
681 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || |
682 | ((acpi_gbl_FADT.header.revision < 6) && | |
683 | adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); | |
1399dfcd AL |
684 | } |
685 | ||
fe066621 Y |
686 | static inline void acpi_dev_put(struct acpi_device *adev) |
687 | { | |
688 | put_device(&adev->dev); | |
689 | } | |
66886d6f MG |
690 | #else /* CONFIG_ACPI */ |
691 | ||
7ae30986 LB |
692 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
693 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 694 | |
fd350943 | 695 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
696 | |
697 | #endif /*__ACPI_BUS_H__*/ |