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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 | |
a65ac520 JL |
64 | bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); |
65 | union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, | |
66 | int rev, int func, union acpi_object *argv4); | |
67 | ||
68 | static inline union acpi_object * | |
69 | acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, | |
70 | union acpi_object *argv4, acpi_object_type type) | |
71 | { | |
72 | union acpi_object *obj; | |
73 | ||
74 | obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); | |
75 | if (obj && obj->type != type) { | |
76 | ACPI_FREE(obj); | |
77 | obj = NULL; | |
78 | } | |
79 | ||
80 | return obj; | |
81 | } | |
82 | ||
83 | #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ | |
84 | { \ | |
85 | .package.type = ACPI_TYPE_PACKAGE, \ | |
86 | .package.count = (cnt), \ | |
87 | .package.elements = (eles) \ | |
88 | } | |
89 | ||
76f58584 | 90 | #ifdef CONFIG_ACPI |
1da177e4 LT |
91 | |
92 | #include <linux/proc_fs.h> | |
93 | ||
94 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 95 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 | 96 | |
1da177e4 | 97 | enum acpi_bus_device_type { |
4be44fcd | 98 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
99 | ACPI_BUS_TYPE_POWER, |
100 | ACPI_BUS_TYPE_PROCESSOR, | |
101 | ACPI_BUS_TYPE_THERMAL, | |
1da177e4 LT |
102 | ACPI_BUS_TYPE_POWER_BUTTON, |
103 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
104 | ACPI_BUS_DEVICE_TYPE_COUNT | |
105 | }; | |
106 | ||
107 | struct acpi_driver; | |
108 | struct acpi_device; | |
109 | ||
ca589f94 RW |
110 | /* |
111 | * ACPI Scan Handler | |
112 | * ----------------- | |
113 | */ | |
114 | ||
a33ec399 | 115 | struct acpi_hotplug_profile { |
3f8055c3 | 116 | struct kobject kobj; |
3338db00 | 117 | int (*scan_dependent)(struct acpi_device *adev); |
8ab17fc9 | 118 | void (*notify_online)(struct acpi_device *adev); |
d22ddcbc RW |
119 | bool enabled:1; |
120 | bool demand_offline:1; | |
a33ec399 RW |
121 | }; |
122 | ||
3f8055c3 RW |
123 | static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( |
124 | struct kobject *kobj) | |
125 | { | |
126 | return container_of(kobj, struct acpi_hotplug_profile, kobj); | |
127 | } | |
128 | ||
ca589f94 RW |
129 | struct acpi_scan_handler { |
130 | const struct acpi_device_id *ids; | |
131 | struct list_head list_node; | |
aca0a4eb | 132 | bool (*match)(char *idstr, const struct acpi_device_id **matchid); |
ca589f94 RW |
133 | int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); |
134 | void (*detach)(struct acpi_device *dev); | |
9cb32acf RW |
135 | void (*bind)(struct device *phys_dev); |
136 | void (*unbind)(struct device *phys_dev); | |
a33ec399 | 137 | struct acpi_hotplug_profile hotplug; |
ca589f94 RW |
138 | }; |
139 | ||
3c2cc7ff RW |
140 | /* |
141 | * ACPI Hotplug Context | |
142 | * -------------------- | |
143 | */ | |
144 | ||
145 | struct acpi_hotplug_context { | |
146 | struct acpi_device *self; | |
be27b3dc RW |
147 | int (*notify)(struct acpi_device *, u32); |
148 | void (*uevent)(struct acpi_device *, u32); | |
59b42fa0 | 149 | void (*fixup)(struct acpi_device *); |
3c2cc7ff RW |
150 | }; |
151 | ||
1da177e4 LT |
152 | /* |
153 | * ACPI Driver | |
154 | * ----------- | |
155 | */ | |
156 | ||
4be44fcd | 157 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 158 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 159 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
160 | |
161 | struct acpi_device_ops { | |
4be44fcd LB |
162 | acpi_op_add add; |
163 | acpi_op_remove remove; | |
46ec8598 | 164 | acpi_op_notify notify; |
1da177e4 LT |
165 | }; |
166 | ||
6d278131 BH |
167 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
168 | ||
1da177e4 | 169 | struct acpi_driver { |
4be44fcd LB |
170 | char name[80]; |
171 | char class[80]; | |
8c8eb78f | 172 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 173 | unsigned int flags; |
4be44fcd | 174 | struct acpi_device_ops ops; |
d43ec68e | 175 | struct device_driver drv; |
1890a97a | 176 | struct module *owner; |
1da177e4 LT |
177 | }; |
178 | ||
179 | /* | |
180 | * ACPI Device | |
181 | * ----------- | |
182 | */ | |
183 | ||
184 | /* Status (_STA) */ | |
185 | ||
186 | struct acpi_device_status { | |
4be44fcd LB |
187 | u32 present:1; |
188 | u32 enabled:1; | |
189 | u32 show_in_ui:1; | |
190 | u32 functional:1; | |
191 | u32 battery_present:1; | |
192 | u32 reserved:27; | |
1da177e4 LT |
193 | }; |
194 | ||
1da177e4 LT |
195 | /* Flags */ |
196 | ||
197 | struct acpi_device_flags { | |
4be44fcd | 198 | u32 dynamic_status:1; |
4be44fcd LB |
199 | u32 removable:1; |
200 | u32 ejectable:1; | |
4be44fcd | 201 | u32 power_manageable:1; |
209d3b17 | 202 | u32 match_driver:1; |
202317a5 RW |
203 | u32 initialized:1; |
204 | u32 visited:1; | |
3c2cc7ff | 205 | u32 hotplug_notify:1; |
1e2380cd | 206 | u32 is_dock_station:1; |
5c53b262 | 207 | u32 of_compatible_ok:1; |
d0562674 SS |
208 | u32 coherent_dma:1; |
209 | u32 cca_seen:1; | |
210 | u32 reserved:20; | |
1da177e4 LT |
211 | }; |
212 | ||
1da177e4 LT |
213 | /* File System */ |
214 | ||
215 | struct acpi_device_dir { | |
4be44fcd | 216 | struct proc_dir_entry *entry; |
1da177e4 LT |
217 | }; |
218 | ||
219 | #define acpi_device_dir(d) ((d)->dir.entry) | |
220 | ||
1da177e4 LT |
221 | /* Plug and Play */ |
222 | ||
24c5c4c2 | 223 | typedef char acpi_bus_id[8]; |
4be44fcd | 224 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
225 | typedef char acpi_device_name[40]; |
226 | typedef char acpi_device_class[20]; | |
1da177e4 | 227 | |
7f47fa6c BH |
228 | struct acpi_hardware_id { |
229 | struct list_head list; | |
230 | char *id; | |
231 | }; | |
232 | ||
d4e1a692 TK |
233 | struct acpi_pnp_type { |
234 | u32 hardware_id:1; | |
235 | u32 bus_address:1; | |
549e6845 RW |
236 | u32 platform_id:1; |
237 | u32 reserved:29; | |
d4e1a692 TK |
238 | }; |
239 | ||
1da177e4 | 240 | struct acpi_device_pnp { |
d4e1a692 TK |
241 | acpi_bus_id bus_id; /* Object name */ |
242 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 243 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 244 | char *unique_id; /* _UID */ |
7f47fa6c | 245 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
246 | acpi_device_name device_name; /* Driver-determined */ |
247 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 248 | union acpi_object *str_obj; /* unicode string for _STR method */ |
1da177e4 LT |
249 | }; |
250 | ||
251 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
252 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 253 | const char *acpi_device_hid(struct acpi_device *device); |
359597cb | 254 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
1da177e4 LT |
255 | #define acpi_device_name(d) ((d)->pnp.device_name) |
256 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
257 | ||
1da177e4 LT |
258 | /* Power Management */ |
259 | ||
260 | struct acpi_device_power_flags { | |
4be44fcd LB |
261 | u32 explicit_get:1; /* _PSC present? */ |
262 | u32 power_resources:1; /* Power resources */ | |
263 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
264 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
644f17ad | 265 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
f25c0ae2 RW |
266 | u32 dsw_present:1; /* _DSW present? */ |
267 | u32 reserved:26; | |
1da177e4 LT |
268 | }; |
269 | ||
270 | struct acpi_device_power_state { | |
271 | struct { | |
4be44fcd LB |
272 | u8 valid:1; |
273 | u8 explicit_set:1; /* _PSx present? */ | |
274 | u8 reserved:6; | |
275 | } flags; | |
276 | int power; /* % Power (compared to D0) */ | |
277 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 278 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
279 | }; |
280 | ||
281 | struct acpi_device_power { | |
4be44fcd | 282 | int state; /* Current state */ |
1da177e4 | 283 | struct acpi_device_power_flags flags; |
b4a03b9a | 284 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
285 | }; |
286 | ||
1da177e4 LT |
287 | /* Performance Management */ |
288 | ||
289 | struct acpi_device_perf_flags { | |
4be44fcd | 290 | u8 reserved:8; |
1da177e4 LT |
291 | }; |
292 | ||
293 | struct acpi_device_perf_state { | |
294 | struct { | |
4be44fcd LB |
295 | u8 valid:1; |
296 | u8 reserved:7; | |
297 | } flags; | |
298 | u8 power; /* % Power (compared to P0) */ | |
299 | u8 performance; /* % Performance ( " ) */ | |
300 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
301 | }; |
302 | ||
303 | struct acpi_device_perf { | |
4be44fcd | 304 | int state; |
1da177e4 | 305 | struct acpi_device_perf_flags flags; |
4be44fcd | 306 | int state_count; |
1da177e4 LT |
307 | struct acpi_device_perf_state *states; |
308 | }; | |
309 | ||
310 | /* Wakeup Management */ | |
311 | struct acpi_device_wakeup_flags { | |
4be44fcd LB |
312 | u8 valid:1; /* Can successfully enable wakeup? */ |
313 | u8 run_wake:1; /* Run-Wake GPE devices */ | |
b67ea761 | 314 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
175f8e26 | 315 | u8 enabled:1; /* Enabled for wakeup */ |
1da177e4 LT |
316 | }; |
317 | ||
c072530f RW |
318 | struct acpi_device_wakeup_context { |
319 | struct work_struct work; | |
320 | struct device *dev; | |
321 | }; | |
322 | ||
1da177e4 | 323 | struct acpi_device_wakeup { |
4be44fcd | 324 | acpi_handle gpe_device; |
439913ff LM |
325 | u64 gpe_number; |
326 | u64 sleep_state; | |
993cbe59 | 327 | struct list_head resources; |
4be44fcd | 328 | struct acpi_device_wakeup_flags flags; |
c072530f RW |
329 | struct acpi_device_wakeup_context context; |
330 | struct wakeup_source *ws; | |
9b83ccd2 | 331 | int prepare_count; |
1da177e4 LT |
332 | }; |
333 | ||
1033f904 | 334 | struct acpi_device_physical_node { |
007ccfcf | 335 | unsigned int node_id; |
1033f904 LT |
336 | struct list_head node; |
337 | struct device *dev; | |
683058e3 | 338 | bool put_online:1; |
1033f904 | 339 | }; |
1da177e4 | 340 | |
ffdcd955 MW |
341 | /* ACPI Device Specific Data (_DSD) */ |
342 | struct acpi_device_data { | |
343 | const union acpi_object *pointer; | |
344 | const union acpi_object *properties; | |
733e6251 | 345 | const union acpi_object *of_compatible; |
445b0eb0 | 346 | struct list_head subnodes; |
ffdcd955 MW |
347 | }; |
348 | ||
f028d524 RW |
349 | struct acpi_gpio_mapping; |
350 | ||
1033f904 | 351 | /* Device */ |
1da177e4 | 352 | struct acpi_device { |
caaa6efb BH |
353 | int device_type; |
354 | acpi_handle handle; /* no handle for fixed hardware */ | |
8a0662d9 | 355 | struct fwnode_handle fwnode; |
4be44fcd LB |
356 | struct acpi_device *parent; |
357 | struct list_head children; | |
358 | struct list_head node; | |
359 | struct list_head wakeup_list; | |
d783156e | 360 | struct list_head del_list; |
1da177e4 LT |
361 | struct acpi_device_status status; |
362 | struct acpi_device_flags flags; | |
4be44fcd | 363 | struct acpi_device_pnp pnp; |
1da177e4 LT |
364 | struct acpi_device_power power; |
365 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
366 | struct acpi_device_perf performance; |
367 | struct acpi_device_dir dir; | |
ffdcd955 | 368 | struct acpi_device_data data; |
ca589f94 | 369 | struct acpi_scan_handler *handler; |
3c2cc7ff | 370 | struct acpi_hotplug_context *hp; |
4be44fcd | 371 | struct acpi_driver *driver; |
f028d524 | 372 | const struct acpi_gpio_mapping *driver_gpios; |
4be44fcd | 373 | void *driver_data; |
5b327265 | 374 | struct device dev; |
007ccfcf | 375 | unsigned int physical_node_count; |
40e7fcb1 | 376 | unsigned int dep_unmet; |
1033f904 LT |
377 | struct list_head physical_node_list; |
378 | struct mutex physical_node_lock; | |
b1c0f99b | 379 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
380 | }; |
381 | ||
445b0eb0 RW |
382 | /* Non-device subnode */ |
383 | struct acpi_data_node { | |
384 | const char *name; | |
385 | struct fwnode_handle fwnode; | |
386 | struct acpi_device_data data; | |
387 | struct list_head sibling; | |
388 | }; | |
389 | ||
d0562674 SS |
390 | static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) |
391 | { | |
392 | bool ret = false; | |
393 | ||
394 | if (!adev) | |
395 | return ret; | |
396 | ||
397 | /** | |
398 | * Currently, we only support _CCA=1 (i.e. coherent_dma=1) | |
399 | * This should be equivalent to specifyig dma-coherent for | |
400 | * a device in OF. | |
401 | * | |
402 | * For the case when _CCA=0 (i.e. coherent_dma=0 && cca_seen=1), | |
403 | * There are two cases: | |
404 | * case 1. Do not support and disable DMA. | |
405 | * case 2. Support but rely on arch-specific cache maintenance for | |
406 | * non-coherence DMA operations. | |
407 | * Currently, we implement case 1 above. | |
408 | * | |
409 | * For the case when _CCA is missing (i.e. cca_seen=0) and | |
410 | * platform specifies ACPI_CCA_REQUIRED, we do not support DMA, | |
411 | * and fallback to arch-specific default handling. | |
412 | * | |
413 | * See acpi_init_coherency() for more info. | |
414 | */ | |
415 | if (adev->flags.coherent_dma) { | |
416 | ret = true; | |
417 | if (coherent) | |
418 | *coherent = adev->flags.coherent_dma; | |
419 | } | |
420 | return ret; | |
421 | } | |
422 | ||
8a0662d9 RW |
423 | static inline bool is_acpi_node(struct fwnode_handle *fwnode) |
424 | { | |
425 | return fwnode && fwnode->type == FWNODE_ACPI; | |
426 | } | |
427 | ||
c181fb3e | 428 | static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode) |
8a0662d9 | 429 | { |
ce793486 RW |
430 | return is_acpi_node(fwnode) ? |
431 | container_of(fwnode, struct acpi_device, fwnode) : NULL; | |
8a0662d9 RW |
432 | } |
433 | ||
434 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) | |
435 | { | |
436 | return &adev->fwnode; | |
437 | } | |
438 | ||
db89b4f0 PM |
439 | static inline void *acpi_driver_data(struct acpi_device *d) |
440 | { | |
441 | return d->driver_data; | |
442 | } | |
443 | ||
d43ec68e PM |
444 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
445 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 446 | |
25db115b RW |
447 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
448 | { | |
449 | *((u32 *)&adev->status) = sta; | |
450 | } | |
451 | ||
3c2cc7ff | 452 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
ba574dc8 | 453 | struct acpi_hotplug_context *hp) |
3c2cc7ff RW |
454 | { |
455 | hp->self = adev; | |
3c2cc7ff RW |
456 | adev->hp = hp; |
457 | } | |
458 | ||
5d513205 RW |
459 | void acpi_initialize_hp_context(struct acpi_device *adev, |
460 | struct acpi_hotplug_context *hp, | |
461 | int (*notify)(struct acpi_device *, u32), | |
462 | void (*uevent)(struct acpi_device *, u32)); | |
463 | ||
55955aad DB |
464 | /* acpi_device.dev.bus == &acpi_bus_type */ |
465 | extern struct bus_type acpi_bus_type; | |
466 | ||
1da177e4 LT |
467 | /* |
468 | * Events | |
469 | * ------ | |
470 | */ | |
471 | ||
472 | struct acpi_bus_event { | |
4be44fcd LB |
473 | struct list_head node; |
474 | acpi_device_class device_class; | |
475 | acpi_bus_id bus_id; | |
476 | u32 type; | |
477 | u32 data; | |
1da177e4 LT |
478 | }; |
479 | ||
99e0d2fc | 480 | extern struct kobject *acpi_kobj; |
962ce8ca | 481 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 482 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 483 | int acpi_bus_get_private_data(acpi_handle, void **); |
72013795 LT |
484 | int acpi_bus_attach_private_data(acpi_handle, void *); |
485 | void acpi_bus_detach_private_data(acpi_handle); | |
9ee85241 ZR |
486 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
487 | extern int register_acpi_notifier(struct notifier_block *); | |
488 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 489 | |
1da177e4 LT |
490 | /* |
491 | * External Functions | |
492 | */ | |
493 | ||
494 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
495 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
496 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
497 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
498 | unsigned long long *sta); | |
4be44fcd | 499 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 500 | |
4be44fcd | 501 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 502 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 503 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 504 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 505 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 506 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 507 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
2bb3a2bf | 508 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
3737b2b1 | 509 | bool acpi_bus_power_manageable(acpi_handle handle); |
ec4602a9 RW |
510 | |
511 | #ifdef CONFIG_PM | |
eb9d0fe4 | 512 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
513 | #else |
514 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
515 | #endif | |
9ce4e607 | 516 | |
3757b948 RW |
517 | void acpi_scan_lock_acquire(void); |
518 | void acpi_scan_lock_release(void); | |
e525506f RW |
519 | void acpi_lock_hp_context(void); |
520 | void acpi_unlock_hp_context(void); | |
ca589f94 | 521 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 522 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 523 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 524 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 525 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 526 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
527 | int acpi_match_device_ids(struct acpi_device *device, |
528 | const struct acpi_device_id *ids); | |
1da177e4 LT |
529 | int acpi_create_dir(struct acpi_device *); |
530 | void acpi_remove_dir(struct acpi_device *); | |
531 | ||
202317a5 RW |
532 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
533 | { | |
534 | return adev && adev->flags.initialized && adev->flags.visited; | |
535 | } | |
536 | ||
0d2cf8f5 MW |
537 | /** |
538 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
539 | * @__acpi_driver: acpi_driver struct | |
540 | * | |
541 | * Helper macro for ACPI drivers which do not do anything special in module | |
542 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
543 | * use this macro once, and calling it replaces module_init() and module_exit() | |
544 | */ | |
545 | #define module_acpi_driver(__acpi_driver) \ | |
546 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
547 | acpi_bus_unregister_driver) | |
548 | ||
4e10d12a DSL |
549 | /* |
550 | * Bind physical devices with ACPI devices | |
551 | */ | |
4e10d12a | 552 | struct acpi_bus_type { |
4be44fcd | 553 | struct list_head list; |
53540098 RW |
554 | const char *name; |
555 | bool (*match)(struct device *dev); | |
e3f02c52 | 556 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
557 | void (*setup)(struct device *); |
558 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
559 | }; |
560 | int register_acpi_bus_type(struct acpi_bus_type *); | |
561 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
f1b1dc84 ZR |
562 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
563 | int acpi_unbind_one(struct device *dev); | |
22c13f9d | 564 | |
76d56de5 | 565 | struct acpi_pci_root { |
76d56de5 | 566 | struct acpi_device * device; |
76d56de5 AC |
567 | struct pci_bus *bus; |
568 | u16 segment; | |
6ad95513 | 569 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
570 | |
571 | u32 osc_support_set; /* _OSC state of support bits */ | |
572 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 573 | phys_addr_t mcfg_addr; |
76d56de5 AC |
574 | }; |
575 | ||
4e10d12a | 576 | /* helper */ |
d9fef0c4 RW |
577 | |
578 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, | |
579 | u64 address, bool check_children); | |
27558203 | 580 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 581 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 582 | |
b67ea761 RW |
583 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
584 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
585 | ||
aa338601 | 586 | #ifdef CONFIG_PM |
c072530f RW |
587 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
588 | void (*work_func)(struct work_struct *work)); | |
589 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); | |
ee85f543 | 590 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
5de21bb9 | 591 | int acpi_pm_device_run_wake(struct device *, bool); |
761afb86 | 592 | #else |
ec2cd81c | 593 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
c072530f RW |
594 | struct device *dev, |
595 | void (*work_func)(struct work_struct *work)) | |
ec2cd81c RW |
596 | { |
597 | return AE_SUPPORT; | |
598 | } | |
c072530f | 599 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) |
ec2cd81c RW |
600 | { |
601 | return AE_SUPPORT; | |
602 | } | |
b25c77ef | 603 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
296699de RW |
604 | { |
605 | if (p) | |
606 | *p = ACPI_STATE_D0; | |
b25c77ef | 607 | |
8ad928d5 RW |
608 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
609 | m : ACPI_STATE_D0; | |
296699de | 610 | } |
b24e5098 LM |
611 | static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) |
612 | { | |
613 | return -ENODEV; | |
614 | } | |
bdda27fb RW |
615 | #endif |
616 | ||
617 | #ifdef CONFIG_PM_SLEEP | |
618 | int acpi_pm_device_sleep_wake(struct device *, bool); | |
619 | #else | |
f7a1b860 DH |
620 | static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) |
621 | { | |
622 | return -ENODEV; | |
623 | } | |
761afb86 | 624 | #endif |
fd4aff1a | 625 | |
99926a8c DR |
626 | #ifdef CONFIG_ACPI_SLEEP |
627 | u32 acpi_target_system_state(void); | |
628 | #else | |
629 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
630 | #endif | |
631 | ||
078eb126 RW |
632 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
633 | { | |
634 | return adev->flags.power_manageable; | |
635 | } | |
636 | ||
637 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
638 | { | |
639 | return adev->wakeup.flags.valid; | |
640 | } | |
641 | ||
1399dfcd AL |
642 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
643 | { | |
20dacb71 | 644 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid; |
1399dfcd AL |
645 | } |
646 | ||
66886d6f MG |
647 | #else /* CONFIG_ACPI */ |
648 | ||
7ae30986 LB |
649 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
650 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 651 | |
fd350943 | 652 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
653 | |
654 | #endif /*__ACPI_BUS_H__*/ |