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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> |
1da177e4 LT |
30 | |
31 | #include <acpi/acpi.h> | |
32 | ||
1da177e4 LT |
33 | /* TBD: Make dynamic */ |
34 | #define ACPI_MAX_HANDLES 10 | |
35 | struct acpi_handle_list { | |
4be44fcd LB |
36 | u32 count; |
37 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
38 | }; |
39 | ||
1da177e4 LT |
40 | /* acpi_utils.h */ |
41 | acpi_status | |
4be44fcd LB |
42 | acpi_extract_package(union acpi_object *package, |
43 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 44 | acpi_status |
4be44fcd LB |
45 | acpi_evaluate_integer(acpi_handle handle, |
46 | acpi_string pathname, | |
27663c58 | 47 | struct acpi_object_list *arguments, unsigned long long *data); |
1da177e4 | 48 | acpi_status |
4be44fcd LB |
49 | acpi_evaluate_reference(acpi_handle handle, |
50 | acpi_string pathname, | |
51 | struct acpi_object_list *arguments, | |
52 | struct acpi_handle_list *list); | |
275c58d7 TK |
53 | acpi_status |
54 | acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, | |
55 | u32 status_code, struct acpi_buffer *status_buf); | |
1da177e4 | 56 | |
38ac0f1b | 57 | acpi_status |
8ede06ab | 58 | acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); |
76f58584 | 59 | #ifdef CONFIG_ACPI |
1da177e4 LT |
60 | |
61 | #include <linux/proc_fs.h> | |
62 | ||
63 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 64 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 LT |
65 | |
66 | enum acpi_bus_removal_type { | |
4be44fcd | 67 | ACPI_BUS_REMOVAL_NORMAL = 0, |
1da177e4 LT |
68 | ACPI_BUS_REMOVAL_EJECT, |
69 | ACPI_BUS_REMOVAL_SUPRISE, | |
70 | ACPI_BUS_REMOVAL_TYPE_COUNT | |
71 | }; | |
72 | ||
73 | enum acpi_bus_device_type { | |
4be44fcd | 74 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
75 | ACPI_BUS_TYPE_POWER, |
76 | ACPI_BUS_TYPE_PROCESSOR, | |
77 | ACPI_BUS_TYPE_THERMAL, | |
1da177e4 LT |
78 | ACPI_BUS_TYPE_POWER_BUTTON, |
79 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
80 | ACPI_BUS_DEVICE_TYPE_COUNT | |
81 | }; | |
82 | ||
83 | struct acpi_driver; | |
84 | struct acpi_device; | |
85 | ||
1da177e4 LT |
86 | /* |
87 | * ACPI Driver | |
88 | * ----------- | |
89 | */ | |
90 | ||
4be44fcd | 91 | typedef int (*acpi_op_add) (struct acpi_device * device); |
51fac838 | 92 | typedef int (*acpi_op_remove) (struct acpi_device * device); |
46ec8598 | 93 | typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); |
1da177e4 LT |
94 | |
95 | struct acpi_device_ops { | |
4be44fcd LB |
96 | acpi_op_add add; |
97 | acpi_op_remove remove; | |
46ec8598 | 98 | acpi_op_notify notify; |
1da177e4 LT |
99 | }; |
100 | ||
6d278131 BH |
101 | #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ |
102 | ||
1da177e4 | 103 | struct acpi_driver { |
4be44fcd LB |
104 | char name[80]; |
105 | char class[80]; | |
8c8eb78f | 106 | const struct acpi_device_id *ids; /* Supported Hardware IDs */ |
6d278131 | 107 | unsigned int flags; |
4be44fcd | 108 | struct acpi_device_ops ops; |
d43ec68e | 109 | struct device_driver drv; |
1890a97a | 110 | struct module *owner; |
1da177e4 LT |
111 | }; |
112 | ||
113 | /* | |
114 | * ACPI Device | |
115 | * ----------- | |
116 | */ | |
117 | ||
118 | /* Status (_STA) */ | |
119 | ||
120 | struct acpi_device_status { | |
4be44fcd LB |
121 | u32 present:1; |
122 | u32 enabled:1; | |
123 | u32 show_in_ui:1; | |
124 | u32 functional:1; | |
125 | u32 battery_present:1; | |
126 | u32 reserved:27; | |
1da177e4 LT |
127 | }; |
128 | ||
1da177e4 LT |
129 | /* Flags */ |
130 | ||
131 | struct acpi_device_flags { | |
4be44fcd | 132 | u32 dynamic_status:1; |
4be44fcd | 133 | u32 bus_address:1; |
4be44fcd LB |
134 | u32 removable:1; |
135 | u32 ejectable:1; | |
4be44fcd LB |
136 | u32 suprise_removal_ok:1; |
137 | u32 power_manageable:1; | |
138 | u32 performance_manageable:1; | |
c4753e57 | 139 | u32 eject_pending:1; |
209d3b17 RW |
140 | u32 match_driver:1; |
141 | u32 reserved:23; | |
1da177e4 LT |
142 | }; |
143 | ||
1da177e4 LT |
144 | /* File System */ |
145 | ||
146 | struct acpi_device_dir { | |
4be44fcd | 147 | struct proc_dir_entry *entry; |
1da177e4 LT |
148 | }; |
149 | ||
150 | #define acpi_device_dir(d) ((d)->dir.entry) | |
151 | ||
1da177e4 LT |
152 | /* Plug and Play */ |
153 | ||
24c5c4c2 | 154 | typedef char acpi_bus_id[8]; |
4be44fcd | 155 | typedef unsigned long acpi_bus_address; |
4be44fcd LB |
156 | typedef char acpi_device_name[40]; |
157 | typedef char acpi_device_class[20]; | |
1da177e4 | 158 | |
7f47fa6c BH |
159 | struct acpi_hardware_id { |
160 | struct list_head list; | |
161 | char *id; | |
162 | }; | |
163 | ||
1da177e4 | 164 | struct acpi_device_pnp { |
4be44fcd LB |
165 | acpi_bus_id bus_id; /* Object name */ |
166 | acpi_bus_address bus_address; /* _ADR */ | |
15b8dd53 | 167 | char *unique_id; /* _UID */ |
7f47fa6c | 168 | struct list_head ids; /* _HID and _CIDs */ |
4be44fcd LB |
169 | acpi_device_name device_name; /* Driver-determined */ |
170 | acpi_device_class device_class; /* " */ | |
d1efe3c3 | 171 | union acpi_object *str_obj; /* unicode string for _STR method */ |
bb74ac23 | 172 | unsigned long sun; /* _SUN */ |
1da177e4 LT |
173 | }; |
174 | ||
175 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
176 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
620e112c | 177 | const char *acpi_device_hid(struct acpi_device *device); |
1da177e4 LT |
178 | #define acpi_device_name(d) ((d)->pnp.device_name) |
179 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
180 | ||
1da177e4 LT |
181 | /* Power Management */ |
182 | ||
183 | struct acpi_device_power_flags { | |
4be44fcd LB |
184 | u32 explicit_get:1; /* _PSC present? */ |
185 | u32 power_resources:1; /* Power resources */ | |
186 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
187 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
188 | u32 reserved:28; | |
1da177e4 LT |
189 | }; |
190 | ||
191 | struct acpi_device_power_state { | |
192 | struct { | |
4be44fcd | 193 | u8 valid:1; |
1399dfcd | 194 | u8 os_accessible:1; |
4be44fcd LB |
195 | u8 explicit_set:1; /* _PSx present? */ |
196 | u8 reserved:6; | |
197 | } flags; | |
198 | int power; /* % Power (compared to D0) */ | |
199 | int latency; /* Dx->D0 time (microseconds) */ | |
0b224527 | 200 | struct list_head resources; /* Power resources referenced */ |
1da177e4 LT |
201 | }; |
202 | ||
203 | struct acpi_device_power { | |
4be44fcd | 204 | int state; /* Current state */ |
1da177e4 | 205 | struct acpi_device_power_flags flags; |
b4a03b9a | 206 | struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ |
1da177e4 LT |
207 | }; |
208 | ||
1da177e4 LT |
209 | /* Performance Management */ |
210 | ||
211 | struct acpi_device_perf_flags { | |
4be44fcd | 212 | u8 reserved:8; |
1da177e4 LT |
213 | }; |
214 | ||
215 | struct acpi_device_perf_state { | |
216 | struct { | |
4be44fcd LB |
217 | u8 valid:1; |
218 | u8 reserved:7; | |
219 | } flags; | |
220 | u8 power; /* % Power (compared to P0) */ | |
221 | u8 performance; /* % Performance ( " ) */ | |
222 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
223 | }; |
224 | ||
225 | struct acpi_device_perf { | |
4be44fcd | 226 | int state; |
1da177e4 | 227 | struct acpi_device_perf_flags flags; |
4be44fcd | 228 | int state_count; |
1da177e4 LT |
229 | struct acpi_device_perf_state *states; |
230 | }; | |
231 | ||
232 | /* Wakeup Management */ | |
233 | struct acpi_device_wakeup_flags { | |
4be44fcd LB |
234 | u8 valid:1; /* Can successfully enable wakeup? */ |
235 | u8 run_wake:1; /* Run-Wake GPE devices */ | |
b67ea761 | 236 | u8 notifier_present:1; /* Wake-up notify handler has been installed */ |
1da177e4 LT |
237 | }; |
238 | ||
1da177e4 | 239 | struct acpi_device_wakeup { |
4be44fcd | 240 | acpi_handle gpe_device; |
439913ff LM |
241 | u64 gpe_number; |
242 | u64 sleep_state; | |
993cbe59 | 243 | struct list_head resources; |
4be44fcd | 244 | struct acpi_device_wakeup_flags flags; |
9b83ccd2 | 245 | int prepare_count; |
1da177e4 LT |
246 | }; |
247 | ||
1033f904 LT |
248 | struct acpi_device_physical_node { |
249 | u8 node_id; | |
250 | struct list_head node; | |
251 | struct device *dev; | |
252 | }; | |
1da177e4 | 253 | |
1033f904 LT |
254 | /* set maximum of physical nodes to 32 for expansibility */ |
255 | #define ACPI_MAX_PHYSICAL_NODE 32 | |
1da177e4 | 256 | |
1033f904 | 257 | /* Device */ |
1da177e4 | 258 | struct acpi_device { |
caaa6efb BH |
259 | int device_type; |
260 | acpi_handle handle; /* no handle for fixed hardware */ | |
4be44fcd LB |
261 | struct acpi_device *parent; |
262 | struct list_head children; | |
263 | struct list_head node; | |
264 | struct list_head wakeup_list; | |
1da177e4 LT |
265 | struct acpi_device_status status; |
266 | struct acpi_device_flags flags; | |
4be44fcd | 267 | struct acpi_device_pnp pnp; |
1da177e4 LT |
268 | struct acpi_device_power power; |
269 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
270 | struct acpi_device_perf performance; |
271 | struct acpi_device_dir dir; | |
4be44fcd LB |
272 | struct acpi_driver *driver; |
273 | void *driver_data; | |
5b327265 | 274 | struct device dev; |
fd350943 | 275 | enum acpi_bus_removal_type removal_type; /* indicate for different removal type */ |
1033f904 LT |
276 | u8 physical_node_count; |
277 | struct list_head physical_node_list; | |
278 | struct mutex physical_node_lock; | |
279 | DECLARE_BITMAP(physical_node_id_bitmap, ACPI_MAX_PHYSICAL_NODE); | |
bc9b6407 | 280 | struct list_head power_dependent; |
b1c0f99b | 281 | void (*remove)(struct acpi_device *); |
1da177e4 LT |
282 | }; |
283 | ||
db89b4f0 PM |
284 | static inline void *acpi_driver_data(struct acpi_device *d) |
285 | { | |
286 | return d->driver_data; | |
287 | } | |
288 | ||
d43ec68e PM |
289 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
290 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 291 | |
55955aad DB |
292 | /* acpi_device.dev.bus == &acpi_bus_type */ |
293 | extern struct bus_type acpi_bus_type; | |
294 | ||
1da177e4 LT |
295 | /* |
296 | * Events | |
297 | * ------ | |
298 | */ | |
299 | ||
300 | struct acpi_bus_event { | |
4be44fcd LB |
301 | struct list_head node; |
302 | acpi_device_class device_class; | |
303 | acpi_bus_id bus_id; | |
304 | u32 type; | |
305 | u32 data; | |
1da177e4 LT |
306 | }; |
307 | ||
c4753e57 | 308 | struct acpi_eject_event { |
5993c467 | 309 | struct acpi_device *device; |
c4753e57 TK |
310 | u32 event; |
311 | }; | |
312 | ||
99e0d2fc | 313 | extern struct kobject *acpi_kobj; |
962ce8ca | 314 | extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); |
8e4319c4 | 315 | void acpi_bus_private_data_handler(acpi_handle, void *); |
20733939 | 316 | int acpi_bus_get_private_data(acpi_handle, void **); |
9ee85241 ZR |
317 | extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); |
318 | extern int register_acpi_notifier(struct notifier_block *); | |
319 | extern int unregister_acpi_notifier(struct notifier_block *); | |
6bd00a61 SL |
320 | |
321 | extern int register_acpi_bus_notifier(struct notifier_block *nb); | |
322 | extern void unregister_acpi_bus_notifier(struct notifier_block *nb); | |
1da177e4 LT |
323 | /* |
324 | * External Functions | |
325 | */ | |
326 | ||
327 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
8e4319c4 | 328 | void acpi_bus_data_handler(acpi_handle handle, void *context); |
402ac536 BH |
329 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
330 | unsigned long long *sta); | |
4be44fcd | 331 | int acpi_bus_get_status(struct acpi_device *device); |
9ce4e607 RW |
332 | |
333 | #ifdef CONFIG_PM | |
4be44fcd | 334 | int acpi_bus_set_power(acpi_handle handle, int state); |
96bfd3ce | 335 | const char *acpi_power_state_string(int state); |
ad0c3b0e | 336 | int acpi_device_get_power(struct acpi_device *device, int *state); |
078eb126 | 337 | int acpi_device_set_power(struct acpi_device *device, int state); |
9ce4e607 | 338 | int acpi_bus_init_power(struct acpi_device *device); |
25eed407 | 339 | int acpi_bus_update_power(acpi_handle handle, int *state_p); |
3737b2b1 | 340 | bool acpi_bus_power_manageable(acpi_handle handle); |
eb9d0fe4 | 341 | bool acpi_bus_can_wakeup(acpi_handle handle); |
9ce4e607 RW |
342 | #else /* !CONFIG_PM */ |
343 | static inline int acpi_bus_set_power(acpi_handle handle, int state) | |
344 | { | |
345 | return 0; | |
346 | } | |
347 | static inline const char *acpi_power_state_string(int state) | |
348 | { | |
349 | return "D0"; | |
350 | } | |
351 | static inline int acpi_device_get_power(struct acpi_device *device, int *state) | |
352 | { | |
353 | return 0; | |
354 | } | |
355 | static inline int acpi_device_set_power(struct acpi_device *device, int state) | |
356 | { | |
357 | return 0; | |
358 | } | |
359 | static inline int acpi_bus_init_power(struct acpi_device *device) | |
360 | { | |
361 | return 0; | |
362 | } | |
363 | static inline int acpi_bus_update_power(acpi_handle handle, int *state_p) | |
364 | { | |
365 | return 0; | |
366 | } | |
367 | static inline bool acpi_bus_power_manageable(acpi_handle handle) | |
368 | { | |
369 | return false; | |
370 | } | |
371 | static inline bool acpi_bus_can_wakeup(acpi_handle handle) | |
372 | { | |
373 | return false; | |
374 | } | |
375 | #endif /* !CONFIG_PM */ | |
376 | ||
14e04fb3 LB |
377 | #ifdef CONFIG_ACPI_PROC_EVENT |
378 | int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data); | |
8db85d4c | 379 | int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data); |
4be44fcd | 380 | int acpi_bus_receive_event(struct acpi_bus_event *event); |
14e04fb3 LB |
381 | #else |
382 | static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data) | |
383 | { return 0; } | |
384 | #endif | |
4be44fcd | 385 | int acpi_bus_register_driver(struct acpi_driver *driver); |
06ea8e08 | 386 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
b8bd759a | 387 | int acpi_bus_scan(acpi_handle handle); |
c4753e57 | 388 | void acpi_bus_hot_remove_device(void *context); |
bfee26db | 389 | void acpi_bus_trim(struct acpi_device *start); |
fd350943 | 390 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); |
8c8eb78f TR |
391 | int acpi_match_device_ids(struct acpi_device *device, |
392 | const struct acpi_device_id *ids); | |
1da177e4 LT |
393 | int acpi_create_dir(struct acpi_device *); |
394 | void acpi_remove_dir(struct acpi_device *); | |
395 | ||
0d2cf8f5 MW |
396 | |
397 | /** | |
398 | * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver | |
399 | * @__acpi_driver: acpi_driver struct | |
400 | * | |
401 | * Helper macro for ACPI drivers which do not do anything special in module | |
402 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
403 | * use this macro once, and calling it replaces module_init() and module_exit() | |
404 | */ | |
405 | #define module_acpi_driver(__acpi_driver) \ | |
406 | module_driver(__acpi_driver, acpi_bus_register_driver, \ | |
407 | acpi_bus_unregister_driver) | |
408 | ||
4e10d12a DSL |
409 | /* |
410 | * Bind physical devices with ACPI devices | |
411 | */ | |
4e10d12a | 412 | struct acpi_bus_type { |
4be44fcd LB |
413 | struct list_head list; |
414 | struct bus_type *bus; | |
415 | /* For general devices under the bus */ | |
416 | int (*find_device) (struct device *, acpi_handle *); | |
4e10d12a | 417 | /* For bridges, such as PCI root bridge, IDE controller */ |
4be44fcd | 418 | int (*find_bridge) (struct device *, acpi_handle *); |
11909ca1 RW |
419 | void (*setup)(struct device *); |
420 | void (*cleanup)(struct device *); | |
4e10d12a DSL |
421 | }; |
422 | int register_acpi_bus_type(struct acpi_bus_type *); | |
423 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
22c13f9d | 424 | |
76d56de5 AC |
425 | struct acpi_pci_root { |
426 | struct list_head node; | |
427 | struct acpi_device * device; | |
76d56de5 AC |
428 | struct pci_bus *bus; |
429 | u16 segment; | |
6ad95513 | 430 | struct resource secondary; /* downstream bus range */ |
76d56de5 AC |
431 | |
432 | u32 osc_support_set; /* _OSC state of support bits */ | |
433 | u32 osc_control_set; /* _OSC state of control bits */ | |
f4b57a3b | 434 | phys_addr_t mcfg_addr; |
76d56de5 AC |
435 | }; |
436 | ||
4e10d12a | 437 | /* helper */ |
439913ff | 438 | acpi_handle acpi_get_child(acpi_handle, u64); |
27558203 | 439 | int acpi_is_root_bridge(acpi_handle); |
4e10d12a | 440 | acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); |
76d56de5 | 441 | struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |
95f8a082 | 442 | #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)ACPI_HANDLE(dev)) |
4e10d12a | 443 | |
b67ea761 RW |
444 | int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); |
445 | int acpi_disable_wakeup_device_power(struct acpi_device *dev); | |
446 | ||
aa338601 | 447 | #ifdef CONFIG_PM |
ec2cd81c RW |
448 | acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
449 | acpi_notify_handler handler, void *context); | |
450 | acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, | |
451 | acpi_notify_handler handler); | |
86b3832c RW |
452 | int acpi_device_power_state(struct device *dev, struct acpi_device *adev, |
453 | u32 target_state, int d_max_in, int *d_min_p); | |
ee85f543 | 454 | int acpi_pm_device_sleep_state(struct device *, int *, int); |
bc9b6407 RW |
455 | void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev); |
456 | void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev); | |
761afb86 | 457 | #else |
ec2cd81c RW |
458 | static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, |
459 | acpi_notify_handler handler, | |
460 | void *context) | |
461 | { | |
462 | return AE_SUPPORT; | |
463 | } | |
464 | static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, | |
465 | acpi_notify_handler handler) | |
466 | { | |
467 | return AE_SUPPORT; | |
468 | } | |
86b3832c | 469 | static inline int __acpi_device_power_state(int m, int *p) |
296699de RW |
470 | { |
471 | if (p) | |
472 | *p = ACPI_STATE_D0; | |
ee85f543 | 473 | return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3) ? m : ACPI_STATE_D0; |
296699de | 474 | } |
86b3832c RW |
475 | static inline int acpi_device_power_state(struct device *dev, |
476 | struct acpi_device *adev, | |
477 | u32 target_state, int d_max_in, | |
478 | int *d_min_p) | |
479 | { | |
480 | return __acpi_device_power_state(d_max_in, d_min_p); | |
481 | } | |
482 | static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) | |
483 | { | |
484 | return __acpi_device_power_state(m, p); | |
485 | } | |
bc9b6407 RW |
486 | static inline void acpi_dev_pm_add_dependent(acpi_handle handle, |
487 | struct device *depdev) {} | |
488 | static inline void acpi_dev_pm_remove_dependent(acpi_handle handle, | |
489 | struct device *depdev) {} | |
761afb86 RW |
490 | #endif |
491 | ||
bdda27fb | 492 | #ifdef CONFIG_PM_RUNTIME |
dee8370c | 493 | int __acpi_device_run_wake(struct acpi_device *, bool); |
b24e5098 | 494 | int acpi_pm_device_run_wake(struct device *, bool); |
761afb86 | 495 | #else |
dee8370c RW |
496 | static inline int __acpi_device_run_wake(struct acpi_device *adev, bool en) |
497 | { | |
498 | return -ENODEV; | |
499 | } | |
b24e5098 LM |
500 | static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) |
501 | { | |
502 | return -ENODEV; | |
503 | } | |
bdda27fb RW |
504 | #endif |
505 | ||
506 | #ifdef CONFIG_PM_SLEEP | |
dee8370c | 507 | int __acpi_device_sleep_wake(struct acpi_device *, u32, bool); |
bdda27fb RW |
508 | int acpi_pm_device_sleep_wake(struct device *, bool); |
509 | #else | |
dee8370c RW |
510 | static inline int __acpi_device_sleep_wake(struct acpi_device *adev, |
511 | u32 target_state, bool enable) | |
512 | { | |
513 | return -ENODEV; | |
514 | } | |
f7a1b860 DH |
515 | static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) |
516 | { | |
517 | return -ENODEV; | |
518 | } | |
761afb86 | 519 | #endif |
fd4aff1a | 520 | |
99926a8c DR |
521 | #ifdef CONFIG_ACPI_SLEEP |
522 | u32 acpi_target_system_state(void); | |
523 | #else | |
524 | static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } | |
525 | #endif | |
526 | ||
078eb126 RW |
527 | static inline bool acpi_device_power_manageable(struct acpi_device *adev) |
528 | { | |
529 | return adev->flags.power_manageable; | |
530 | } | |
531 | ||
532 | static inline bool acpi_device_can_wakeup(struct acpi_device *adev) | |
533 | { | |
534 | return adev->wakeup.flags.valid; | |
535 | } | |
536 | ||
1399dfcd AL |
537 | static inline bool acpi_device_can_poweroff(struct acpi_device *adev) |
538 | { | |
539 | return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; | |
540 | } | |
541 | ||
66886d6f MG |
542 | #else /* CONFIG_ACPI */ |
543 | ||
7ae30986 LB |
544 | static inline int register_acpi_bus_type(void *bus) { return 0; } |
545 | static inline int unregister_acpi_bus_type(void *bus) { return 0; } | |
66886d6f | 546 | |
fd350943 | 547 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
548 | |
549 | #endif /*__ACPI_BUS_H__*/ |