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22#ifndef __ACPI_BUS_H__
23#define __ACPI_BUS_H__
24
25#include <linux/device.h>
26#include <linux/property.h>
27
28
29#define ACPI_MAX_HANDLES 10
30struct acpi_handle_list {
31 u32 count;
32 acpi_handle handles[ACPI_MAX_HANDLES];
33};
34
35
36acpi_status
37acpi_extract_package(union acpi_object *package,
38 struct acpi_buffer *format, struct acpi_buffer *buffer);
39acpi_status
40acpi_evaluate_integer(acpi_handle handle,
41 acpi_string pathname,
42 struct acpi_object_list *arguments, unsigned long long *data);
43acpi_status
44acpi_evaluate_reference(acpi_handle handle,
45 acpi_string pathname,
46 struct acpi_object_list *arguments,
47 struct acpi_handle_list *list);
48acpi_status
49acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
50 struct acpi_buffer *status_buf);
51
52acpi_status
53acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
54
55bool acpi_has_method(acpi_handle handle, char *name);
56acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
57 u64 arg);
58acpi_status acpi_evaluate_ej0(acpi_handle handle);
59acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
60bool acpi_ata_match(acpi_handle handle);
61bool acpi_bay_match(acpi_handle handle);
62bool acpi_dock_match(acpi_handle handle);
63
64bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs);
65union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid,
66 u64 rev, u64 func, union acpi_object *argv4);
67
68static inline union acpi_object *
69acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, u64 rev, u64 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
90bool acpi_dev_found(const char *hid);
91
92#ifdef CONFIG_ACPI
93
94#include <linux/proc_fs.h>
95
96#define ACPI_BUS_FILE_ROOT "acpi"
97extern struct proc_dir_entry *acpi_root_dir;
98
99enum acpi_bus_device_type {
100 ACPI_BUS_TYPE_DEVICE = 0,
101 ACPI_BUS_TYPE_POWER,
102 ACPI_BUS_TYPE_PROCESSOR,
103 ACPI_BUS_TYPE_THERMAL,
104 ACPI_BUS_TYPE_POWER_BUTTON,
105 ACPI_BUS_TYPE_SLEEP_BUTTON,
106 ACPI_BUS_DEVICE_TYPE_COUNT
107};
108
109struct acpi_driver;
110struct acpi_device;
111
112
113
114
115
116
117struct acpi_hotplug_profile {
118 struct kobject kobj;
119 int (*scan_dependent)(struct acpi_device *adev);
120 void (*notify_online)(struct acpi_device *adev);
121 bool enabled:1;
122 bool demand_offline:1;
123};
124
125static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
126 struct kobject *kobj)
127{
128 return container_of(kobj, struct acpi_hotplug_profile, kobj);
129}
130
131struct acpi_scan_handler {
132 const struct acpi_device_id *ids;
133 struct list_head list_node;
134 bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
135 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
136 void (*detach)(struct acpi_device *dev);
137 void (*bind)(struct device *phys_dev);
138 void (*unbind)(struct device *phys_dev);
139 struct acpi_hotplug_profile hotplug;
140};
141
142
143
144
145
146
147struct acpi_hotplug_context {
148 struct acpi_device *self;
149 int (*notify)(struct acpi_device *, u32);
150 void (*uevent)(struct acpi_device *, u32);
151 void (*fixup)(struct acpi_device *);
152};
153
154
155
156
157
158
159typedef int (*acpi_op_add) (struct acpi_device * device);
160typedef int (*acpi_op_remove) (struct acpi_device * device);
161typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
162
163struct acpi_device_ops {
164 acpi_op_add add;
165 acpi_op_remove remove;
166 acpi_op_notify notify;
167};
168
169#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1
170
171struct acpi_driver {
172 char name[80];
173 char class[80];
174 const struct acpi_device_id *ids;
175 unsigned int flags;
176 struct acpi_device_ops ops;
177 struct device_driver drv;
178 struct module *owner;
179};
180
181
182
183
184
185
186
187
188struct acpi_device_status {
189 u32 present:1;
190 u32 enabled:1;
191 u32 show_in_ui:1;
192 u32 functional:1;
193 u32 battery_present:1;
194 u32 reserved:27;
195};
196
197
198
199struct acpi_device_flags {
200 u32 dynamic_status:1;
201 u32 removable:1;
202 u32 ejectable:1;
203 u32 power_manageable:1;
204 u32 match_driver:1;
205 u32 initialized:1;
206 u32 visited:1;
207 u32 hotplug_notify:1;
208 u32 is_dock_station:1;
209 u32 of_compatible_ok:1;
210 u32 coherent_dma:1;
211 u32 cca_seen:1;
212 u32 reserved:20;
213};
214
215
216
217struct acpi_device_dir {
218 struct proc_dir_entry *entry;
219};
220
221#define acpi_device_dir(d) ((d)->dir.entry)
222
223
224
225typedef char acpi_bus_id[8];
226typedef unsigned long acpi_bus_address;
227typedef char acpi_device_name[40];
228typedef char acpi_device_class[20];
229
230struct acpi_hardware_id {
231 struct list_head list;
232 const char *id;
233};
234
235struct acpi_pnp_type {
236 u32 hardware_id:1;
237 u32 bus_address:1;
238 u32 platform_id:1;
239 u32 reserved:29;
240};
241
242struct acpi_device_pnp {
243 acpi_bus_id bus_id;
244 struct acpi_pnp_type type;
245 acpi_bus_address bus_address;
246 char *unique_id;
247 struct list_head ids;
248 acpi_device_name device_name;
249 acpi_device_class device_class;
250 union acpi_object *str_obj;
251};
252
253#define acpi_device_bid(d) ((d)->pnp.bus_id)
254#define acpi_device_adr(d) ((d)->pnp.bus_address)
255const char *acpi_device_hid(struct acpi_device *device);
256#define acpi_device_uid(d) ((d)->pnp.unique_id)
257#define acpi_device_name(d) ((d)->pnp.device_name)
258#define acpi_device_class(d) ((d)->pnp.device_class)
259
260
261
262struct acpi_device_power_flags {
263 u32 explicit_get:1;
264 u32 power_resources:1;
265 u32 inrush_current:1;
266 u32 power_removed:1;
267 u32 ignore_parent:1;
268 u32 dsw_present:1;
269 u32 reserved:26;
270};
271
272struct acpi_device_power_state {
273 struct {
274 u8 valid:1;
275 u8 explicit_set:1;
276 u8 reserved:6;
277 } flags;
278 int power;
279 int latency;
280 struct list_head resources;
281};
282
283struct acpi_device_power {
284 int state;
285 struct acpi_device_power_flags flags;
286 struct acpi_device_power_state states[ACPI_D_STATE_COUNT];
287};
288
289
290
291struct acpi_device_perf_flags {
292 u8 reserved:8;
293};
294
295struct acpi_device_perf_state {
296 struct {
297 u8 valid:1;
298 u8 reserved:7;
299 } flags;
300 u8 power;
301 u8 performance;
302 int latency;
303};
304
305struct acpi_device_perf {
306 int state;
307 struct acpi_device_perf_flags flags;
308 int state_count;
309 struct acpi_device_perf_state *states;
310};
311
312
313struct acpi_device_wakeup_flags {
314 u8 valid:1;
315 u8 run_wake:1;
316 u8 notifier_present:1;
317 u8 enabled:1;
318};
319
320struct acpi_device_wakeup_context {
321 struct work_struct work;
322 struct device *dev;
323};
324
325struct acpi_device_wakeup {
326 acpi_handle gpe_device;
327 u64 gpe_number;
328 u64 sleep_state;
329 struct list_head resources;
330 struct acpi_device_wakeup_flags flags;
331 struct acpi_device_wakeup_context context;
332 struct wakeup_source *ws;
333 int prepare_count;
334};
335
336struct acpi_device_physical_node {
337 unsigned int node_id;
338 struct list_head node;
339 struct device *dev;
340 bool put_online:1;
341};
342
343
344struct acpi_device_data {
345 const union acpi_object *pointer;
346 const union acpi_object *properties;
347 const union acpi_object *of_compatible;
348 struct list_head subnodes;
349};
350
351struct acpi_gpio_mapping;
352
353
354struct acpi_device {
355 int device_type;
356 acpi_handle handle;
357 struct fwnode_handle fwnode;
358 struct acpi_device *parent;
359 struct list_head children;
360 struct list_head node;
361 struct list_head wakeup_list;
362 struct list_head del_list;
363 struct acpi_device_status status;
364 struct acpi_device_flags flags;
365 struct acpi_device_pnp pnp;
366 struct acpi_device_power power;
367 struct acpi_device_wakeup wakeup;
368 struct acpi_device_perf performance;
369 struct acpi_device_dir dir;
370 struct acpi_device_data data;
371 struct acpi_scan_handler *handler;
372 struct acpi_hotplug_context *hp;
373 struct acpi_driver *driver;
374 const struct acpi_gpio_mapping *driver_gpios;
375 void *driver_data;
376 struct device dev;
377 unsigned int physical_node_count;
378 unsigned int dep_unmet;
379 struct list_head physical_node_list;
380 struct mutex physical_node_lock;
381 void (*remove)(struct acpi_device *);
382};
383
384
385struct acpi_data_node {
386 const char *name;
387 acpi_handle handle;
388 struct fwnode_handle fwnode;
389 struct acpi_device_data data;
390 struct list_head sibling;
391 struct kobject kobj;
392 struct completion kobj_done;
393};
394
395static inline bool is_acpi_node(struct fwnode_handle *fwnode)
396{
397 return !IS_ERR_OR_NULL(fwnode) && (fwnode->type == FWNODE_ACPI
398 || fwnode->type == FWNODE_ACPI_DATA);
399}
400
401static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
402{
403 return !IS_ERR_OR_NULL(fwnode) && fwnode->type == FWNODE_ACPI;
404}
405
406static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
407{
408 return is_acpi_device_node(fwnode) ?
409 container_of(fwnode, struct acpi_device, fwnode) : NULL;
410}
411
412static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
413{
414 return fwnode && fwnode->type == FWNODE_ACPI_DATA;
415}
416
417static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
418{
419 return is_acpi_data_node(fwnode) ?
420 container_of(fwnode, struct acpi_data_node, fwnode) : NULL;
421}
422
423static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
424 const char *name)
425{
426 return is_acpi_data_node(fwnode) ?
427 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
428}
429
430static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
431{
432 return &adev->fwnode;
433}
434
435static inline void *acpi_driver_data(struct acpi_device *d)
436{
437 return d->driver_data;
438}
439
440#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
441#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
442
443static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
444{
445 *((u32 *)&adev->status) = sta;
446}
447
448static inline void acpi_set_hp_context(struct acpi_device *adev,
449 struct acpi_hotplug_context *hp)
450{
451 hp->self = adev;
452 adev->hp = hp;
453}
454
455void acpi_initialize_hp_context(struct acpi_device *adev,
456 struct acpi_hotplug_context *hp,
457 int (*notify)(struct acpi_device *, u32),
458 void (*uevent)(struct acpi_device *, u32));
459
460
461extern struct bus_type acpi_bus_type;
462
463
464
465
466
467
468struct acpi_bus_event {
469 struct list_head node;
470 acpi_device_class device_class;
471 acpi_bus_id bus_id;
472 u32 type;
473 u32 data;
474};
475
476extern struct kobject *acpi_kobj;
477extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
478void acpi_bus_private_data_handler(acpi_handle, void *);
479int acpi_bus_get_private_data(acpi_handle, void **);
480int acpi_bus_attach_private_data(acpi_handle, void *);
481void acpi_bus_detach_private_data(acpi_handle);
482extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
483extern int register_acpi_notifier(struct notifier_block *);
484extern int unregister_acpi_notifier(struct notifier_block *);
485
486
487
488
489
490int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
491struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
492void acpi_bus_put_acpi_device(struct acpi_device *adev);
493acpi_status acpi_bus_get_status_handle(acpi_handle handle,
494 unsigned long long *sta);
495int acpi_bus_get_status(struct acpi_device *device);
496
497int acpi_bus_set_power(acpi_handle handle, int state);
498const char *acpi_power_state_string(int state);
499int acpi_device_get_power(struct acpi_device *device, int *state);
500int acpi_device_set_power(struct acpi_device *device, int state);
501int acpi_bus_init_power(struct acpi_device *device);
502int acpi_device_fix_up_power(struct acpi_device *device);
503int acpi_bus_update_power(acpi_handle handle, int *state_p);
504int acpi_device_update_power(struct acpi_device *device, int *state_p);
505bool acpi_bus_power_manageable(acpi_handle handle);
506
507#ifdef CONFIG_PM
508bool acpi_bus_can_wakeup(acpi_handle handle);
509#else
510static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
511#endif
512
513void acpi_scan_lock_acquire(void);
514void acpi_scan_lock_release(void);
515void acpi_lock_hp_context(void);
516void acpi_unlock_hp_context(void);
517int acpi_scan_add_handler(struct acpi_scan_handler *handler);
518int acpi_bus_register_driver(struct acpi_driver *driver);
519void acpi_bus_unregister_driver(struct acpi_driver *driver);
520int acpi_bus_scan(acpi_handle handle);
521void acpi_bus_trim(struct acpi_device *start);
522acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
523int acpi_match_device_ids(struct acpi_device *device,
524 const struct acpi_device_id *ids);
525int acpi_create_dir(struct acpi_device *);
526void acpi_remove_dir(struct acpi_device *);
527
528static inline bool acpi_device_enumerated(struct acpi_device *adev)
529{
530 return adev && adev->flags.initialized && adev->flags.visited;
531}
532
533
534
535
536
537
538
539
540
541#define module_acpi_driver(__acpi_driver) \
542 module_driver(__acpi_driver, acpi_bus_register_driver, \
543 acpi_bus_unregister_driver)
544
545
546
547
548struct acpi_bus_type {
549 struct list_head list;
550 const char *name;
551 bool (*match)(struct device *dev);
552 struct acpi_device * (*find_companion)(struct device *);
553 void (*setup)(struct device *);
554 void (*cleanup)(struct device *);
555};
556int register_acpi_bus_type(struct acpi_bus_type *);
557int unregister_acpi_bus_type(struct acpi_bus_type *);
558int acpi_bind_one(struct device *dev, struct acpi_device *adev);
559int acpi_unbind_one(struct device *dev);
560
561struct acpi_pci_root {
562 struct acpi_device * device;
563 struct pci_bus *bus;
564 u16 segment;
565 struct resource secondary;
566
567 u32 osc_support_set;
568 u32 osc_control_set;
569 phys_addr_t mcfg_addr;
570};
571
572
573
574bool acpi_dma_supported(struct acpi_device *adev);
575enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
576
577struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
578 u64 address, bool check_children);
579int acpi_is_root_bridge(acpi_handle);
580struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
581
582int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
583int acpi_disable_wakeup_device_power(struct acpi_device *dev);
584
585#ifdef CONFIG_PM
586acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
587 void (*work_func)(struct work_struct *work));
588acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
589int acpi_pm_device_sleep_state(struct device *, int *, int);
590int acpi_pm_device_run_wake(struct device *, bool);
591#else
592static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
593 struct device *dev,
594 void (*work_func)(struct work_struct *work))
595{
596 return AE_SUPPORT;
597}
598static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
599{
600 return AE_SUPPORT;
601}
602static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
603{
604 if (p)
605 *p = ACPI_STATE_D0;
606
607 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
608 m : ACPI_STATE_D0;
609}
610static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
611{
612 return -ENODEV;
613}
614#endif
615
616#ifdef CONFIG_PM_SLEEP
617int acpi_pm_device_sleep_wake(struct device *, bool);
618#else
619static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
620{
621 return -ENODEV;
622}
623#endif
624
625#ifdef CONFIG_ACPI_SLEEP
626u32 acpi_target_system_state(void);
627#else
628static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
629#endif
630
631static inline bool acpi_device_power_manageable(struct acpi_device *adev)
632{
633 return adev->flags.power_manageable;
634}
635
636static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
637{
638 return adev->wakeup.flags.valid;
639}
640
641static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
642{
643 return adev->power.states[ACPI_STATE_D3_COLD].flags.valid ||
644 ((acpi_gbl_FADT.header.revision < 6) &&
645 adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
646}
647
648#else
649
650static inline int register_acpi_bus_type(void *bus) { return 0; }
651static inline int unregister_acpi_bus_type(void *bus) { return 0; }
652
653#endif
654
655#endif
656