1 /* SPDX-License-Identifier: GPL-2.0-or-later */
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>
7 */
8
9 #ifndef __ACPI_BUS_H__
10 #define __ACPI_BUS_H__
11
12 #include <linux/device.h>
13 #include <linux/property.h>
14
15 /* TBD: Make dynamic */
16 #define ACPI_MAX_HANDLES 10
17 struct acpi_handle_list {
18 u32 count;
19 acpi_handle handles[ACPI_MAX_HANDLES];
20 };
21
22 /* acpi_utils.h */
23 acpi_status
24 acpi_extract_package(union acpi_object *package,
25 struct acpi_buffer *format, struct acpi_buffer *buffer);
26 acpi_status
27 acpi_evaluate_integer(acpi_handle handle,
28 acpi_string pathname,
29 struct acpi_object_list *arguments, unsigned long long *data);
30 acpi_status
31 acpi_evaluate_reference(acpi_handle handle,
32 acpi_string pathname,
33 struct acpi_object_list *arguments,
34 struct acpi_handle_list *list);
35 acpi_status
36 acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
37 struct acpi_buffer *status_buf);
38
39 acpi_status
40 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
41
42 bool acpi_has_method(acpi_handle handle, char *name);
43 acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
44 u64 arg);
45 acpi_status acpi_evaluate_ej0(acpi_handle handle);
46 acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
47 acpi_status acpi_evaluate_reg(acpi_handle handle, u8 space_id, u32 function);
48 bool acpi_ata_match(acpi_handle handle);
49 bool acpi_bay_match(acpi_handle handle);
50 bool acpi_dock_match(acpi_handle handle);
51
52 bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs);
53 union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
54 u64 rev, u64 func, union acpi_object *argv4);
55
56 static inline union acpi_object *
acpi_evaluate_dsm_typed(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4,acpi_object_type type)57 acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
58 u64 func, union acpi_object *argv4,
59 acpi_object_type type)
60 {
61 union acpi_object *obj;
62
63 obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4);
64 if (obj && obj->type != type) {
65 ACPI_FREE(obj);
66 obj = NULL;
67 }
68
69 return obj;
70 }
71
72 #define ACPI_INIT_DSM_ARGV4(cnt, eles) \
73 { \
74 .package.type = ACPI_TYPE_PACKAGE, \
75 .package.count = (cnt), \
76 .package.elements = (eles) \
77 }
78
79 bool acpi_dev_found(const char *hid);
80 bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
81
82 #ifdef CONFIG_ACPI
83
84 struct proc_dir_entry;
85
86 #define ACPI_BUS_FILE_ROOT "acpi"
87 extern struct proc_dir_entry *acpi_root_dir;
88
89 enum acpi_bus_device_type {
90 ACPI_BUS_TYPE_DEVICE = 0,
91 ACPI_BUS_TYPE_POWER,
92 ACPI_BUS_TYPE_PROCESSOR,
93 ACPI_BUS_TYPE_THERMAL,
94 ACPI_BUS_TYPE_POWER_BUTTON,
95 ACPI_BUS_TYPE_SLEEP_BUTTON,
96 ACPI_BUS_TYPE_ECDT_EC,
97 ACPI_BUS_DEVICE_TYPE_COUNT
98 };
99
100 struct acpi_driver;
101 struct acpi_device;
102
103 /*
104 * ACPI Scan Handler
105 * -----------------
106 */
107
108 struct acpi_hotplug_profile {
109 struct kobject kobj;
110 int (*scan_dependent)(struct acpi_device *adev);
111 void (*notify_online)(struct acpi_device *adev);
112 bool enabled:1;
113 bool demand_offline:1;
114 };
115
to_acpi_hotplug_profile(struct kobject * kobj)116 static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
117 struct kobject *kobj)
118 {
119 return container_of(kobj, struct acpi_hotplug_profile, kobj);
120 }
121
122 struct acpi_scan_handler {
123 const struct acpi_device_id *ids;
124 struct list_head list_node;
125 bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
126 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
127 void (*detach)(struct acpi_device *dev);
128 void (*bind)(struct device *phys_dev);
129 void (*unbind)(struct device *phys_dev);
130 struct acpi_hotplug_profile hotplug;
131 };
132
133 /*
134 * ACPI Hotplug Context
135 * --------------------
136 */
137
138 struct acpi_hotplug_context {
139 struct acpi_device *self;
140 int (*notify)(struct acpi_device *, u32);
141 void (*uevent)(struct acpi_device *, u32);
142 void (*fixup)(struct acpi_device *);
143 };
144
145 /*
146 * ACPI Driver
147 * -----------
148 */
149
150 typedef int (*acpi_op_add) (struct acpi_device * device);
151 typedef int (*acpi_op_remove) (struct acpi_device * device);
152 typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
153
154 struct acpi_device_ops {
155 acpi_op_add add;
156 acpi_op_remove remove;
157 acpi_op_notify notify;
158 };
159
160 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
161
162 struct acpi_driver {
163 char name[80];
164 char class[80];
165 const struct acpi_device_id *ids; /* Supported Hardware IDs */
166 unsigned int flags;
167 struct acpi_device_ops ops;
168 struct device_driver drv;
169 struct module *owner;
170 };
171
172 /*
173 * ACPI Device
174 * -----------
175 */
176
177 /* Status (_STA) */
178
179 struct acpi_device_status {
180 u32 present:1;
181 u32 enabled:1;
182 u32 show_in_ui:1;
183 u32 functional:1;
184 u32 battery_present:1;
185 u32 reserved:27;
186 };
187
188 /* Flags */
189
190 struct acpi_device_flags {
191 u32 dynamic_status:1;
192 u32 removable:1;
193 u32 ejectable:1;
194 u32 power_manageable:1;
195 u32 match_driver:1;
196 u32 initialized:1;
197 u32 visited:1;
198 u32 hotplug_notify:1;
199 u32 is_dock_station:1;
200 u32 of_compatible_ok:1;
201 u32 coherent_dma:1;
202 u32 cca_seen:1;
203 u32 enumeration_by_parent:1;
204 u32 reserved:19;
205 };
206
207 /* File System */
208
209 struct acpi_device_dir {
210 struct proc_dir_entry *entry;
211 };
212
213 #define acpi_device_dir(d) ((d)->dir.entry)
214
215 /* Plug and Play */
216
217 typedef char acpi_bus_id[8];
218 typedef u64 acpi_bus_address;
219 typedef char acpi_device_name[40];
220 typedef char acpi_device_class[20];
221
222 struct acpi_hardware_id {
223 struct list_head list;
224 const char *id;
225 };
226
227 struct acpi_pnp_type {
228 u32 hardware_id:1;
229 u32 bus_address:1;
230 u32 platform_id:1;
231 u32 reserved:29;
232 };
233
234 struct acpi_device_pnp {
235 acpi_bus_id bus_id; /* Object name */
236 int instance_no; /* Instance number of this object */
237 struct acpi_pnp_type type; /* ID type */
238 acpi_bus_address bus_address; /* _ADR */
239 char *unique_id; /* _UID */
240 struct list_head ids; /* _HID and _CIDs */
241 acpi_device_name device_name; /* Driver-determined */
242 acpi_device_class device_class; /* " */
243 union acpi_object *str_obj; /* unicode string for _STR method */
244 };
245
246 #define acpi_device_bid(d) ((d)->pnp.bus_id)
247 #define acpi_device_adr(d) ((d)->pnp.bus_address)
248 const char *acpi_device_hid(struct acpi_device *device);
249 #define acpi_device_uid(d) ((d)->pnp.unique_id)
250 #define acpi_device_name(d) ((d)->pnp.device_name)
251 #define acpi_device_class(d) ((d)->pnp.device_class)
252
253 /* Power Management */
254
255 struct acpi_device_power_flags {
256 u32 explicit_get:1; /* _PSC present? */
257 u32 power_resources:1; /* Power resources */
258 u32 inrush_current:1; /* Serialize Dx->D0 */
259 u32 power_removed:1; /* Optimize Dx->D0 */
260 u32 ignore_parent:1; /* Power is independent of parent power state */
261 u32 dsw_present:1; /* _DSW present? */
262 u32 reserved:26;
263 };
264
265 struct acpi_device_power_state {
266 struct {
267 u8 valid:1;
268 u8 explicit_set:1; /* _PSx present? */
269 u8 reserved:6;
270 } flags;
271 int power; /* % Power (compared to D0) */
272 int latency; /* Dx->D0 time (microseconds) */
273 struct list_head resources; /* Power resources referenced */
274 };
275
276 struct acpi_device_power {
277 int state; /* Current state */
278 struct acpi_device_power_flags flags;
279 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
280 };
281
282 /* Performance Management */
283
284 struct acpi_device_perf_flags {
285 u8 reserved:8;
286 };
287
288 struct acpi_device_perf_state {
289 struct {
290 u8 valid:1;
291 u8 reserved:7;
292 } flags;
293 u8 power; /* % Power (compared to P0) */
294 u8 performance; /* % Performance ( " ) */
295 int latency; /* Px->P0 time (microseconds) */
296 };
297
298 struct acpi_device_perf {
299 int state;
300 struct acpi_device_perf_flags flags;
301 int state_count;
302 struct acpi_device_perf_state *states;
303 };
304
305 /* Wakeup Management */
306 struct acpi_device_wakeup_flags {
307 u8 valid:1; /* Can successfully enable wakeup? */
308 u8 notifier_present:1; /* Wake-up notify handler has been installed */
309 };
310
311 struct acpi_device_wakeup_context {
312 void (*func)(struct acpi_device_wakeup_context *context);
313 struct device *dev;
314 };
315
316 struct acpi_device_wakeup {
317 acpi_handle gpe_device;
318 u64 gpe_number;
319 u64 sleep_state;
320 struct list_head resources;
321 struct acpi_device_wakeup_flags flags;
322 struct acpi_device_wakeup_context context;
323 struct wakeup_source *ws;
324 int prepare_count;
325 int enable_count;
326 };
327
328 struct acpi_device_physical_node {
329 unsigned int node_id;
330 struct list_head node;
331 struct device *dev;
332 bool put_online:1;
333 };
334
335 struct acpi_device_properties {
336 const guid_t *guid;
337 const union acpi_object *properties;
338 struct list_head list;
339 };
340
341 /* ACPI Device Specific Data (_DSD) */
342 struct acpi_device_data {
343 const union acpi_object *pointer;
344 struct list_head properties;
345 const union acpi_object *of_compatible;
346 struct list_head subnodes;
347 };
348
349 struct acpi_gpio_mapping;
350
351 /* Device */
352 struct acpi_device {
353 int device_type;
354 acpi_handle handle; /* no handle for fixed hardware */
355 struct fwnode_handle fwnode;
356 struct acpi_device *parent;
357 struct list_head children;
358 struct list_head node;
359 struct list_head wakeup_list;
360 struct list_head del_list;
361 struct acpi_device_status status;
362 struct acpi_device_flags flags;
363 struct acpi_device_pnp pnp;
364 struct acpi_device_power power;
365 struct acpi_device_wakeup wakeup;
366 struct acpi_device_perf performance;
367 struct acpi_device_dir dir;
368 struct acpi_device_data data;
369 struct acpi_scan_handler *handler;
370 struct acpi_hotplug_context *hp;
371 struct acpi_driver *driver;
372 const struct acpi_gpio_mapping *driver_gpios;
373 void *driver_data;
374 struct device dev;
375 unsigned int physical_node_count;
376 unsigned int dep_unmet;
377 struct list_head physical_node_list;
378 struct mutex physical_node_lock;
379 void (*remove)(struct acpi_device *);
380 };
381
382 /* Non-device subnode */
383 struct acpi_data_node {
384 const char *name;
385 acpi_handle handle;
386 struct fwnode_handle fwnode;
387 struct fwnode_handle *parent;
388 struct acpi_device_data data;
389 struct list_head sibling;
390 struct kobject kobj;
391 struct completion kobj_done;
392 };
393
394 extern const struct fwnode_operations acpi_device_fwnode_ops;
395 extern const struct fwnode_operations acpi_data_fwnode_ops;
396 extern const struct fwnode_operations acpi_static_fwnode_ops;
397
398 bool is_acpi_device_node(const struct fwnode_handle *fwnode);
399 bool is_acpi_data_node(const struct fwnode_handle *fwnode);
400
is_acpi_node(const struct fwnode_handle * fwnode)401 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
402 {
403 return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
404 }
405
406 #define to_acpi_device_node(__fwnode) \
407 ({ \
408 typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
409 \
410 is_acpi_device_node(__to_acpi_device_node_fwnode) ? \
411 container_of(__to_acpi_device_node_fwnode, \
412 struct acpi_device, fwnode) : \
413 NULL; \
414 })
415
416 #define to_acpi_data_node(__fwnode) \
417 ({ \
418 typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \
419 \
420 is_acpi_data_node(__to_acpi_data_node_fwnode) ? \
421 container_of(__to_acpi_data_node_fwnode, \
422 struct acpi_data_node, fwnode) : \
423 NULL; \
424 })
425
is_acpi_static_node(const struct fwnode_handle * fwnode)426 static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
427 {
428 return !IS_ERR_OR_NULL(fwnode) &&
429 fwnode->ops == &acpi_static_fwnode_ops;
430 }
431
acpi_data_node_match(const struct fwnode_handle * fwnode,const char * name)432 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
433 const char *name)
434 {
435 return is_acpi_data_node(fwnode) ?
436 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
437 }
438
acpi_fwnode_handle(struct acpi_device * adev)439 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
440 {
441 return &adev->fwnode;
442 }
443
acpi_driver_data(struct acpi_device * d)444 static inline void *acpi_driver_data(struct acpi_device *d)
445 {
446 return d->driver_data;
447 }
448
449 #define to_acpi_device(d) container_of(d, struct acpi_device, dev)
450 #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
451
acpi_set_device_status(struct acpi_device * adev,u32 sta)452 static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
453 {
454 *((u32 *)&adev->status) = sta;
455 }
456
acpi_set_hp_context(struct acpi_device * adev,struct acpi_hotplug_context * hp)457 static inline void acpi_set_hp_context(struct acpi_device *adev,
458 struct acpi_hotplug_context *hp)
459 {
460 hp->self = adev;
461 adev->hp = hp;
462 }
463
464 void acpi_initialize_hp_context(struct acpi_device *adev,
465 struct acpi_hotplug_context *hp,
466 int (*notify)(struct acpi_device *, u32),
467 void (*uevent)(struct acpi_device *, u32));
468
469 /* acpi_device.dev.bus == &acpi_bus_type */
470 extern struct bus_type acpi_bus_type;
471
472 /*
473 * Events
474 * ------
475 */
476
477 struct acpi_bus_event {
478 struct list_head node;
479 acpi_device_class device_class;
480 acpi_bus_id bus_id;
481 u32 type;
482 u32 data;
483 };
484
485 extern struct kobject *acpi_kobj;
486 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
487 void acpi_bus_private_data_handler(acpi_handle, void *);
488 int acpi_bus_get_private_data(acpi_handle, void **);
489 int acpi_bus_attach_private_data(acpi_handle, void *);
490 void acpi_bus_detach_private_data(acpi_handle);
491 extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
492 extern int register_acpi_notifier(struct notifier_block *);
493 extern int unregister_acpi_notifier(struct notifier_block *);
494
495 /*
496 * External Functions
497 */
498
499 int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
500 struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
501 void acpi_bus_put_acpi_device(struct acpi_device *adev);
502 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
503 unsigned long long *sta);
504 int acpi_bus_get_status(struct acpi_device *device);
505
506 int acpi_bus_set_power(acpi_handle handle, int state);
507 const char *acpi_power_state_string(int state);
508 int acpi_device_set_power(struct acpi_device *device, int state);
509 int acpi_bus_init_power(struct acpi_device *device);
510 int acpi_device_fix_up_power(struct acpi_device *device);
511 int acpi_bus_update_power(acpi_handle handle, int *state_p);
512 int acpi_device_update_power(struct acpi_device *device, int *state_p);
513 bool acpi_bus_power_manageable(acpi_handle handle);
514 int acpi_device_power_add_dependent(struct acpi_device *adev,
515 struct device *dev);
516 void acpi_device_power_remove_dependent(struct acpi_device *adev,
517 struct device *dev);
518
519 #ifdef CONFIG_PM
520 bool acpi_bus_can_wakeup(acpi_handle handle);
521 #else
acpi_bus_can_wakeup(acpi_handle handle)522 static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
523 #endif
524
525 void acpi_scan_lock_acquire(void);
526 void acpi_scan_lock_release(void);
527 void acpi_lock_hp_context(void);
528 void acpi_unlock_hp_context(void);
529 int acpi_scan_add_handler(struct acpi_scan_handler *handler);
530 int acpi_bus_register_driver(struct acpi_driver *driver);
531 void acpi_bus_unregister_driver(struct acpi_driver *driver);
532 int acpi_bus_scan(acpi_handle handle);
533 void acpi_bus_trim(struct acpi_device *start);
534 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
535 int acpi_match_device_ids(struct acpi_device *device,
536 const struct acpi_device_id *ids);
537 void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
538 char *modalias, size_t len);
539 int acpi_create_dir(struct acpi_device *);
540 void acpi_remove_dir(struct acpi_device *);
541
acpi_device_enumerated(struct acpi_device * adev)542 static inline bool acpi_device_enumerated(struct acpi_device *adev)
543 {
544 return adev && adev->flags.initialized && adev->flags.visited;
545 }
546
547 /**
548 * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
549 * @__acpi_driver: acpi_driver struct
550 *
551 * Helper macro for ACPI drivers which do not do anything special in module
552 * init/exit. This eliminates a lot of boilerplate. Each module may only
553 * use this macro once, and calling it replaces module_init() and module_exit()
554 */
555 #define module_acpi_driver(__acpi_driver) \
556 module_driver(__acpi_driver, acpi_bus_register_driver, \
557 acpi_bus_unregister_driver)
558
559 /*
560 * Bind physical devices with ACPI devices
561 */
562 struct acpi_bus_type {
563 struct list_head list;
564 const char *name;
565 bool (*match)(struct device *dev);
566 struct acpi_device * (*find_companion)(struct device *);
567 void (*setup)(struct device *);
568 void (*cleanup)(struct device *);
569 };
570 int register_acpi_bus_type(struct acpi_bus_type *);
571 int unregister_acpi_bus_type(struct acpi_bus_type *);
572 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
573 int acpi_unbind_one(struct device *dev);
574
575 struct acpi_pci_root {
576 struct acpi_device * device;
577 struct pci_bus *bus;
578 u16 segment;
579 struct resource secondary; /* downstream bus range */
580
581 u32 osc_support_set; /* _OSC state of support bits */
582 u32 osc_control_set; /* _OSC state of control bits */
583 phys_addr_t mcfg_addr;
584 };
585
586 /* helper */
587
588 bool acpi_dma_supported(struct acpi_device *adev);
589 enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
590 int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset,
591 u64 *size);
592 int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr,
593 const u32 *input_id);
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)594 static inline int acpi_dma_configure(struct device *dev,
595 enum dev_dma_attr attr)
596 {
597 return acpi_dma_configure_id(dev, attr, NULL);
598 }
599 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
600 u64 address, bool check_children);
601 int acpi_is_root_bridge(acpi_handle);
602 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
603
604 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
605 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
606
607 #ifdef CONFIG_X86
608 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status);
609 #else
acpi_device_override_status(struct acpi_device * adev,unsigned long long * status)610 static inline bool acpi_device_override_status(struct acpi_device *adev,
611 unsigned long long *status)
612 {
613 return false;
614 }
615 #endif
616
617 #ifdef CONFIG_PM
618 void acpi_pm_wakeup_event(struct device *dev);
619 acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
620 void (*func)(struct acpi_device_wakeup_context *context));
621 acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
622 bool acpi_pm_device_can_wakeup(struct device *dev);
623 int acpi_pm_device_sleep_state(struct device *, int *, int);
624 int acpi_pm_set_device_wakeup(struct device *dev, bool enable);
625 #else
acpi_pm_wakeup_event(struct device * dev)626 static inline void acpi_pm_wakeup_event(struct device *dev)
627 {
628 }
acpi_add_pm_notifier(struct acpi_device * adev,struct device * dev,void (* func)(struct acpi_device_wakeup_context * context))629 static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
630 struct device *dev,
631 void (*func)(struct acpi_device_wakeup_context *context))
632 {
633 return AE_SUPPORT;
634 }
acpi_remove_pm_notifier(struct acpi_device * adev)635 static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
636 {
637 return AE_SUPPORT;
638 }
acpi_pm_device_can_wakeup(struct device * dev)639 static inline bool acpi_pm_device_can_wakeup(struct device *dev)
640 {
641 return false;
642 }
acpi_pm_device_sleep_state(struct device * d,int * p,int m)643 static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
644 {
645 if (p)
646 *p = ACPI_STATE_D0;
647
648 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
649 m : ACPI_STATE_D0;
650 }
acpi_pm_set_device_wakeup(struct device * dev,bool enable)651 static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
652 {
653 return -ENODEV;
654 }
655 #endif
656
657 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
658 bool acpi_sleep_state_supported(u8 sleep_state);
659 #else
acpi_sleep_state_supported(u8 sleep_state)660 static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
661 #endif
662
663 #ifdef CONFIG_ACPI_SLEEP
664 u32 acpi_target_system_state(void);
665 #else
acpi_target_system_state(void)666 static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
667 #endif
668
acpi_device_power_manageable(struct acpi_device * adev)669 static inline bool acpi_device_power_manageable(struct acpi_device *adev)
670 {
671 return adev->flags.power_manageable;
672 }
673
acpi_device_can_wakeup(struct acpi_device * adev)674 static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
675 {
676 return adev->wakeup.flags.valid;
677 }
678
acpi_device_can_poweroff(struct acpi_device * adev)679 static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
680 {
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);
684 }
685
686 bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2);
687
688 struct acpi_device *
689 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv);
690
acpi_dev_put(struct acpi_device * adev)691 static inline void acpi_dev_put(struct acpi_device *adev)
692 {
693 if (adev)
694 put_device(&adev->dev);
695 }
696 #else /* CONFIG_ACPI */
697
register_acpi_bus_type(void * bus)698 static inline int register_acpi_bus_type(void *bus) { return 0; }
unregister_acpi_bus_type(void * bus)699 static inline int unregister_acpi_bus_type(void *bus) { return 0; }
700
701 #endif /* CONFIG_ACPI */
702
703 #endif /*__ACPI_BUS_H__*/
704