Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $) | |
3 | * | |
4 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> | |
5 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
6 | * | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or (at | |
12 | * your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
22 | * | |
23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
24 | */ | |
25 | ||
26 | #ifndef __ACPI_BUS_H__ | |
27 | #define __ACPI_BUS_H__ | |
28 | ||
5b327265 | 29 | #include <linux/device.h> |
8a0662d9 | 30 | #include <linux/property.h> |
1da177e4 | 31 | |
1da177e4 LT |
32 | /* TBD: Make dynamic */ |
33 | #define ACPI_MAX_HANDLES 10 | |
34 | struct acpi_handle_list { | |
4be44fcd LB |
35 | u32 count; |
36 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
37 | }; |
38 | ||
1da177e4 LT |
39 | /* acpi_utils.h */ |
40 | acpi_status | |
4be44fcd LB |
41 | acpi_extract_package(union acpi_object *package, |
42 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 43 | acpi_status |
4be44fcd LB |
44 | acpi_evaluate_integer(acpi_handle handle, |
45 | acpi_string pathname, | |
27663c58 | 46 | struct acpi_object_list *arguments, unsigned long long *data); |
1da177e4 | 47 | acpi_status |
4be44fcd LB |
48 | acpi_evaluate_reference(acpi_handle handle, |
49 | acpi_string pathname, | |
50 | struct acpi_object_list *arguments, | |
51 | struct acpi_handle_list *list); | |
275c58d7 | 52 | acpi_status |
05730c19 JL |
53 | acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, |
54 | struct acpi_buffer *status_buf); | |
1da177e4 | 55 | |
38ac0f1b | 56 | acpi_status |
8ede06ab | 57 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
952c63e9 JL |
58 | |
59 | bool acpi_has_method(acpi_handle handle, char *name); | |
0db98202 JL |
60 | acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, |
61 | u64 arg); | |
7d2421f8 JL |
62 | acpi_status acpi_evaluate_ej0(acpi_handle handle); |
63 | acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); | |
ebf4df8d JL |
64 | bool acpi_ata_match(acpi_handle handle); |
65 | bool acpi_bay_match(acpi_handle handle); | |
66 | bool acpi_dock_match(acpi_handle handle); | |
952c63e9 | 67 | |
a65ac520 JL |
68 | bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); |
69 | union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, | |
70 | int rev, int func, union acpi_object *argv4); | |
71 | ||
72 | static inline union acpi_object * | |
73 | acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, | |
74 | union acpi_object *argv4, acpi_object_type type) | |
75 | { | |
76 | union acpi_object *obj; | |
77 | ||
78 | obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); | |
79 | if (obj && obj->type != type) { | |
80 | ACPI_FREE(obj); | |
81 | obj = NULL; | |
82 | } | |
83 | ||
84 | return obj; | |
85 | } | |
86 | ||
87 | #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ | |
88 | { \ | |
89 | .package.type = ACPI_TYPE_PACKAGE, \ | |
90 | .package.count = (cnt), \ | |
91 | .package.elements = (eles) \ | |
92 | } | |
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; | |
aca0a4eb | 136 | bool (*match)(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; | |
214 | u32 reserved:20; | |
1da177e4 LT |
215 | }; |
216 | ||
1da177e4 LT |
217 | /* File System */ |
218 | ||
219 | struct acpi_device_dir { | |
4be44fcd | 220 | struct proc_dir_entry *entry; |
1da177e4 LT |
221 | }; |
222 | ||
223 | #define acpi_device_dir(d) ((d)->dir.entry) | |
224 | ||
1da177e4 LT |
225 | /* Plug and Play */ |
226 | ||
24c5c4c2 | 227 | typedef char acpi_bus_id[8]; |
4be44fcd | 228 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
229 | typedef char acpi_device_name[40]; |
230 | typedef char acpi_device_class[20]; | |
1da177e4 | 231 | |
7f47fa6c BH |
232 | struct acpi_hardware_id { |
233 | struct list_head list; | |
234 | char *id; | |
235 | }; | |
236 | ||
d4e1a692 TK |
237 | struct acpi_pnp_type { |
238 | u32 hardware_id:1; | |
239 | u32 bus_address:1; | |
549e6845 RW |
240 | u32 platform_id:1; |
241 | u32 reserved:29; | |
d4e1a692 TK |
242 | }; |
243 | ||
1da177e4 | 244 | struct acpi_device_pnp { |
d4e1a692 TK |
245 | acpi_bus_id bus_id; /* Object name */ |
246 | struct acpi_pnp_type type; /* ID type */ | |
4be44fcd | 247 | acpi_bus_address bus_address; /* _ADR */ |
d4e1a692 | 248 | char *unique_id; /* _UID */ |
7f47fa6c | 249 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
250 | acpi_device_name device_name; /* Driver-determined */ |
251 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 252 | union acpi_object *str_obj; /* unicode string for _STR method */ |
1da177e4 LT |
253 | }; |
254 | ||
255 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
256 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 257 | const char *acpi_device_hid(struct acpi_device *device); |
359597cb | 258 | #define acpi_device_uid(d) ((d)->pnp.unique_id) |
1da177e4 LT |
259 | #define acpi_device_name(d) ((d)->pnp.device_name) |
260 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
261 | ||
1da177e4 LT |
262 | /* Power Management */ |
263 | ||
264 | struct acpi_device_power_flags { | |
4be44fcd LB |
265 | u32 explicit_get:1; /* _PSC present? */ |
266 | u32 power_resources:1; /* Power resources */ | |
267 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
268 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
644f17ad | 269 | u32 ignore_parent:1; /* Power is independent of parent power state */ |
f25c0ae2 RW |
270 | u32 dsw_present:1; /* _DSW present? */ |
271 | u32 reserved:26; | |
1da177e4 LT |
272 | }; |
273 | ||
274 | struct acpi_device_power_state { | |
275 | struct { | |
4be44fcd LB |
276 | u8 valid:1; |
277 | u8 explicit_set:1; /* _PSx present? */ | |
278 | u8 reserved:6; | |
279 | } flags; | |
280 | int power; /* % Power (compared to D0) */ | |
281 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 282 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
283 | }; |
284 | ||
285 | struct acpi_device_power { | |
4be44fcd | 286 | int state; /* Current state */ |
1da177e4 | 287 | struct acpi_device_power_flags flags; |
b4a03b9a | 288 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
289 | }; |
290 | ||
1da177e4 LT |
291 | /* Performance Management */ |
292 | ||
293 | struct acpi_device_perf_flags { | |
4be44fcd | 294 | u8 reserved:8; |
1da177e4 LT |
295 | }; |
296 | ||
297 | struct acpi_device_perf_state { | |
298 | struct { | |
4be44fcd LB |
299 | u8 valid:1; |
300 | u8 reserved:7; | |
301 | } flags; | |
302 | u8 power; /* % Power (compared to P0) */ | |
303 | u8 performance; /* % Performance ( " ) */ | |
304 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
305 | }; |
306 | ||
307 | struct acpi_device_perf { | |
4be44fcd | 308 | int state; |
1da177e4 | 309 | struct acpi_device_perf_flags flags; |
4be44fcd | 310 | int state_count; |
1da177e4 LT |
311 | struct acpi_device_perf_state *states; |
312 | }; | |
313 | ||
314 | /* Wakeup Management */ | |
315 | struct acpi_device_wakeup_flags { | |
4be44fcd LB |
316 | u8 valid:1; /* Can successfully enable wakeup? */ |
317 | u8 run_wake:1; /* Run-Wake GPE devices */ | |
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 RW |
322 | struct acpi_device_wakeup_context { |
323 | struct work_struct work; | |
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; |
ffdcd955 MW |
350 | }; |
351 | ||
f028d524 RW |
352 | struct acpi_gpio_mapping; |
353 | ||
1033f904 | 354 | /* Device */ |
1da177e4 | 355 | struct acpi_device { |
caaa6efb BH |
356 | int device_type; |
357 | acpi_handle handle; /* no handle for fixed hardware */ | |
8a0662d9 | 358 | struct fwnode_handle fwnode; |
4be44fcd LB |
359 | struct acpi_device *parent; |
360 | struct list_head children; | |
361 | struct list_head node; | |
362 | struct list_head wakeup_list; | |
d783156e | 363 | struct list_head del_list; |
1da177e4 LT |
364 | struct acpi_device_status status; |
365 | struct acpi_device_flags flags; | |
4be44fcd | 366 | struct acpi_device_pnp pnp; |
1da177e4 LT |
367 | struct acpi_device_power power; |
368 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
369 | struct acpi_device_perf performance; |
370 | struct acpi_device_dir dir; | |
ffdcd955 | 371 | struct acpi_device_data data; |
ca589f94 | 372 | struct acpi_scan_handler *handler; |
3c2cc7ff | 373 | struct acpi_hotplug_context *hp; |
4be44fcd | 374 | struct acpi_driver *driver; |
f028d524 | 375 | const struct acpi_gpio_mapping *driver_gpios; |
4be44fcd | 376 | void *driver_data; |
5b327265 | 377 | struct device dev; |
007ccfcf | 378 | unsigned int physical_node_count; |
40e7fcb1 | 379 | unsigned int dep_unmet; |
1033f904 LT |
380 | struct list_head physical_node_list; |
381 | struct mutex physical_node_lock; | |
b1c0f99b | 382 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
383 | }; |
384 | ||
d0562674 SS |
385 | static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) |
386 | { | |
387 | bool ret = false; | |
388 | ||
389 | if (!adev) | |
390 | return ret; | |
391 | ||
392 | /** | |
393 | * Currently, we only support _CCA=1 (i.e. coherent_dma=1) | |
394 | * This should be equivalent to specifyig dma-coherent for | |
395 | * a device in OF. | |
396 | * | |
397 | * For the case when _CCA=0 (i.e. coherent_dma=0 && cca_seen=1), | |
398 | * There are two cases: | |
399 | * case 1. Do not support and disable DMA. | |
400 | * case 2. Support but rely on arch-specific cache maintenance for | |
401 | * non-coherence DMA operations. | |
402 | * Currently, we implement case 1 above. | |
403 | * | |
404 | * For the case when _CCA is missing (i.e. cca_seen=0) and | |
405 | * platform specifies ACPI_CCA_REQUIRED, we do not support DMA, | |
406 | * and fallback to arch-specific default handling. | |
407 | * | |
408 | * See acpi_init_coherency() for more info. | |
409 | */ | |
410 | if (adev->flags.coherent_dma) { | |
411 | ret = true; | |
412 | if (coherent) | |
413 | *coherent = adev->flags.coherent_dma; | |
414 | } | |
415 | return ret; | |
416 | } | |
417 | ||
8a0662d9 RW |
418 | static inline bool is_acpi_node(struct fwnode_handle *fwnode) |
419 | { | |
420 | return fwnode && fwnode->type == FWNODE_ACPI; | |
421 | } | |
422 | ||
c181fb3e | 423 | static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode) |
8a0662d9 | 424 | { |
ce793486 RW |
425 | return is_acpi_node(fwnode) ? |
426 | container_of(fwnode, struct acpi_device, fwnode) : NULL; | |
8a0662d9 RW |
427 | } |
428 | ||
429 | static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) | |
430 | { | |
431 | return &adev->fwnode; | |
432 | } | |
433 | ||
db89b4f0 PM |
434 | static inline void *acpi_driver_data(struct acpi_device *d) |
435 | { | |
436 | return d->driver_data; | |
437 | } | |
438 | ||
d43ec68e PM |
439 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
440 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 441 | |
25db115b RW |
442 | static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) |
443 | { | |
444 | *((u32 *)&adev->status) = sta; | |
445 | } | |
446 | ||
3c2cc7ff | 447 | static inline void acpi_set_hp_context(struct acpi_device *adev, |
ba574dc8 | 448 | struct acpi_hotplug_context *hp) |
3c2cc7ff RW |
449 | { |
450 | hp->self = adev; | |
3c2cc7ff RW |
451 | adev->hp = hp; |
452 | } | |
453 | ||
5d513205 RW |
454 | void acpi_initialize_hp_context(struct acpi_device *adev, |
455 | struct acpi_hotplug_context *hp, | |
456 | int (*notify)(struct acpi_device *, u32), | |
457 | void (*uevent)(struct acpi_device *, u32)); | |
458 | ||
55955aad DB |
459 | /* acpi_device.dev.bus == &acpi_bus_type */ |
460 | extern struct bus_type acpi_bus_type; | |
461 | ||
1da177e4 LT |
462 | /* |
463 | * Events | |
464 | * ------ | |
465 | */ | |
466 | ||
467 | struct acpi_bus_event { | |
4be44fcd LB |
468 | struct list_head node; |
469 | acpi_device_class device_class; | |
470 | acpi_bus_id bus_id; | |
471 | u32 type; | |
472 | u32 data; | |
1da177e4 LT |
473 | }; |
474 | ||
99e0d2fc | 475 | extern struct kobject *acpi_kobj; |
962ce8ca | 476 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 477 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 478 | int acpi_bus_get_private_data(acpi_handle, void **); |
72013795 LT |
479 | int acpi_bus_attach_private_data(acpi_handle, void *); |
480 | void acpi_bus_detach_private_data(acpi_handle); | |
9ee85241 ZR |
481 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
482 | extern int register_acpi_notifier(struct notifier_block *); | |
483 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 | 484 | |
1da177e4 LT |
485 | /* |
486 | * External Functions | |
487 | */ | |
488 | ||
489 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
78ea4639 RW |
490 | struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); |
491 | void acpi_bus_put_acpi_device(struct acpi_device *adev); | |
402ac536 BH |
492 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
493 | unsigned long long *sta); | |
4be44fcd | 494 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 | 495 | |
4be44fcd | 496 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 497 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 498 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 499 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 500 | int acpi_bus_init_power(struct acpi_device *device); |
b9e95fc6 | 501 | int acpi_device_fix_up_power(struct acpi_device *device); |
25eed407 | 502 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
2bb3a2bf | 503 | int acpi_device_update_power(struct acpi_device *device, int *state_p); |
3737b2b1 | 504 | bool acpi_bus_power_manageable(acpi_handle handle); |
ec4602a9 RW |
505 | |
506 | #ifdef CONFIG_PM | |
eb9d0fe4 | 507 | bool acpi_bus_can_wakeup(acpi_handle handle); |
ec4602a9 RW |
508 | #else |
509 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } | |
510 | #endif | |
9ce4e607 | 511 | |
3757b948 RW |
512 | void acpi_scan_lock_acquire(void); |
513 | void acpi_scan_lock_release(void); | |
e525506f RW |
514 | void acpi_lock_hp_context(void); |
515 | void acpi_unlock_hp_context(void); | |
ca589f94 | 516 | int acpi_scan_add_handler(struct acpi_scan_handler *handler); |
4be44fcd | 517 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 518 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 519 | int acpi_bus_scan(acpi_handle handle); |
bfee26db | 520 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 521 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
522 | int acpi_match_device_ids(struct acpi_device *device, |
523 | const struct acpi_device_id *ids); | |
1da177e4 LT |
524 | int acpi_create_dir(struct acpi_device *); |
525 | void acpi_remove_dir(struct acpi_device *); | |
526 | ||
202317a5 RW |
527 | static inline bool acpi_device_enumerated(struct acpi_device *adev) |
528 | { | |
529 | return adev && adev->flags.initialized && adev->flags.visited; | |
530 | } | |
531 | ||
0d2cf8f5 MW |
532 | /** |
533 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
534 | * @__acpi_driver: acpi_driver struct | |
535 | * | |
536 | * Helper macro for ACPI drivers which do not do anything special in module | |
537 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
538 | * use this macro once, and calling it replaces module_init() and module_exit() | |
539 | */ | |
540 | #define module_acpi_driver(__acpi_driver) \ | |
541 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
542 | acpi_bus_unregister_driver) | |
543 | ||
4e10d12a DSL |
544 | /* |
545 | * Bind physical devices with ACPI devices | |
546 | */ | |
4e10d12a | 547 | struct acpi_bus_type { |
4be44fcd | 548 | struct list_head list; |
53540098 RW |
549 | const char *name; |
550 | bool (*match)(struct device *dev); | |
e3f02c52 | 551 | struct acpi_device * (*find_companion)(struct device *); |
11909ca1 RW |
552 | void (*setup)(struct device *); |
553 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
554 | }; |
555 | int register_acpi_bus_type(struct acpi_bus_type *); | |
556 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
f1b1dc84 ZR |
557 | int acpi_bind_one(struct device *dev, struct acpi_device *adev); |
558 | int acpi_unbind_one(struct device *dev); | |
22c13f9d | 559 | |
76d56de5 | 560 | struct acpi_pci_root { |
76d56de5 | 561 | struct acpi_device * device; |
76d56de5 AC |
562 | struct pci_bus *bus; |
563 | u16 segment; | |
6ad95513 | 564 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
565 | |
566 | u32 osc_support_set; /* _OSC state of support bits */ | |
567 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 568 | phys_addr_t mcfg_addr; |
76d56de5 AC |
569 | }; |
570 | ||
4e10d12a | 571 | /* helper */ |
d9fef0c4 RW |
572 | |
573 | struct acpi_device *acpi_find_child_device(struct acpi_device *parent, | |
574 | u64 address, bool check_children); | |
27558203 | 575 | int acpi_is_root_bridge(acpi_handle); |
76d56de5 | 576 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
4e10d12a | 577 | |
b67ea761 RW |
578 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
579 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
580 | ||
aa338601 | 581 | #ifdef CONFIG_PM |
c072530f RW |
582 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, |
583 | void (*work_func)(struct work_struct *work)); | |
584 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); | |
ee85f543 | 585 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
5de21bb9 | 586 | int acpi_pm_device_run_wake(struct device *, bool); |
761afb86 | 587 | #else |
ec2cd81c | 588 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
c072530f RW |
589 | struct device *dev, |
590 | void (*work_func)(struct work_struct *work)) | |
ec2cd81c RW |
591 | { |
592 | return AE_SUPPORT; | |
593 | } | |
c072530f | 594 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) |
ec2cd81c RW |
595 | { |
596 | return AE_SUPPORT; | |
597 | } | |
b25c77ef | 598 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) |
296699de RW |
599 | { |
600 | if (p) | |
601 | *p = ACPI_STATE_D0; | |
b25c77ef | 602 | |
8ad928d5 RW |
603 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? |
604 | m : ACPI_STATE_D0; | |
296699de | 605 | } |
b24e5098 LM |
606 | static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) |
607 | { | |
608 | return -ENODEV; | |
609 | } | |
bdda27fb RW |
610 | #endif |
611 | ||
612 | #ifdef CONFIG_PM_SLEEP | |
613 | int acpi_pm_device_sleep_wake(struct device *, bool); | |
614 | #else | |
f7a1b860 DH |
615 | static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) |
616 | { | |
617 | return -ENODEV; | |
618 | } | |
761afb86 | 619 | #endif |
fd4aff1a | 620 | |
99926a8c DR |
621 | #ifdef CONFIG_ACPI_SLEEP |
622 | u32 acpi_target_system_state(void); | |
623 | #else | |
624 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
625 | #endif | |
626 | ||
078eb126 RW |
627 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
628 | { | |
629 | return adev->flags.power_manageable; | |
630 | } | |
631 | ||
632 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
633 | { | |
634 | return adev->wakeup.flags.valid; | |
635 | } | |
636 | ||
1399dfcd AL |
637 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
638 | { | |
20dacb71 | 639 | return adev->power.states[ACPI_STATE_D3_COLD].flags.valid; |
1399dfcd AL |
640 | } |
641 | ||
66886d6f MG |
642 | #else /* CONFIG_ACPI */ |
643 | ||
7ae30986 LB |
644 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
645 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 646 | |
fd350943 | 647 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
648 | |
649 | #endif /*__ACPI_BUS_H__*/ |