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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21
22#ifndef __ACPI_BUS_H__
23#define __ACPI_BUS_H__
24
25#include <linux/device.h>
26#include <linux/property.h>
27
28/* TBD: Make dynamic */
29#define ACPI_MAX_HANDLES 10
30struct acpi_handle_list {
31 u32 count;
32 acpi_handle handles[ACPI_MAX_HANDLES];
33};
34
35/* acpi_utils.h */
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 guid_t *guid, u64 rev, u64 funcs);
65union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
66 u64 rev, u64 func, union acpi_object *argv4);
67
68static inline union acpi_object *
69acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
70 u64 func, union acpi_object *argv4,
71 acpi_object_type type)
72{
73 union acpi_object *obj;
74
75 obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4);
76 if (obj && obj->type != type) {
77 ACPI_FREE(obj);
78 obj = NULL;
79 }
80
81 return obj;
82}
83
84#define ACPI_INIT_DSM_ARGV4(cnt, eles) \
85 { \
86 .package.type = ACPI_TYPE_PACKAGE, \
87 .package.count = (cnt), \
88 .package.elements = (eles) \
89 }
90
91bool acpi_dev_found(const char *hid);
92bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
93
94const char *
95acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv);
96
97#ifdef CONFIG_ACPI
98
99#include <linux/proc_fs.h>
100
101#define ACPI_BUS_FILE_ROOT "acpi"
102extern struct proc_dir_entry *acpi_root_dir;
103
104enum acpi_bus_device_type {
105 ACPI_BUS_TYPE_DEVICE = 0,
106 ACPI_BUS_TYPE_POWER,
107 ACPI_BUS_TYPE_PROCESSOR,
108 ACPI_BUS_TYPE_THERMAL,
109 ACPI_BUS_TYPE_POWER_BUTTON,
110 ACPI_BUS_TYPE_SLEEP_BUTTON,
111 ACPI_BUS_TYPE_ECDT_EC,
112 ACPI_BUS_DEVICE_TYPE_COUNT
113};
114
115struct acpi_driver;
116struct acpi_device;
117
118/*
119 * ACPI Scan Handler
120 * -----------------
121 */
122
123struct acpi_hotplug_profile {
124 struct kobject kobj;
125 int (*scan_dependent)(struct acpi_device *adev);
126 void (*notify_online)(struct acpi_device *adev);
127 bool enabled:1;
128 bool demand_offline:1;
129};
130
131static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
132 struct kobject *kobj)
133{
134 return container_of(kobj, struct acpi_hotplug_profile, kobj);
135}
136
137struct acpi_scan_handler {
138 const struct acpi_device_id *ids;
139 struct list_head list_node;
140 bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
141 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
142 void (*detach)(struct acpi_device *dev);
143 void (*bind)(struct device *phys_dev);
144 void (*unbind)(struct device *phys_dev);
145 struct acpi_hotplug_profile hotplug;
146};
147
148/*
149 * ACPI Hotplug Context
150 * --------------------
151 */
152
153struct acpi_hotplug_context {
154 struct acpi_device *self;
155 int (*notify)(struct acpi_device *, u32);
156 void (*uevent)(struct acpi_device *, u32);
157 void (*fixup)(struct acpi_device *);
158};
159
160/*
161 * ACPI Driver
162 * -----------
163 */
164
165typedef int (*acpi_op_add) (struct acpi_device * device);
166typedef int (*acpi_op_remove) (struct acpi_device * device);
167typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
168
169struct acpi_device_ops {
170 acpi_op_add add;
171 acpi_op_remove remove;
172 acpi_op_notify notify;
173};
174
175#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
176
177struct acpi_driver {
178 char name[80];
179 char class[80];
180 const struct acpi_device_id *ids; /* Supported Hardware IDs */
181 unsigned int flags;
182 struct acpi_device_ops ops;
183 struct device_driver drv;
184 struct module *owner;
185};
186
187/*
188 * ACPI Device
189 * -----------
190 */
191
192/* Status (_STA) */
193
194struct acpi_device_status {
195 u32 present:1;
196 u32 enabled:1;
197 u32 show_in_ui:1;
198 u32 functional:1;
199 u32 battery_present:1;
200 u32 reserved:27;
201};
202
203/* Flags */
204
205struct acpi_device_flags {
206 u32 dynamic_status:1;
207 u32 removable:1;
208 u32 ejectable:1;
209 u32 power_manageable:1;
210 u32 match_driver:1;
211 u32 initialized:1;
212 u32 visited:1;
213 u32 hotplug_notify:1;
214 u32 is_dock_station:1;
215 u32 of_compatible_ok:1;
216 u32 coherent_dma:1;
217 u32 cca_seen:1;
218 u32 enumeration_by_parent:1;
219 u32 reserved:19;
220};
221
222/* File System */
223
224struct acpi_device_dir {
225 struct proc_dir_entry *entry;
226};
227
228#define acpi_device_dir(d) ((d)->dir.entry)
229
230/* Plug and Play */
231
232typedef char acpi_bus_id[8];
233typedef unsigned long acpi_bus_address;
234typedef char acpi_device_name[40];
235typedef char acpi_device_class[20];
236
237struct acpi_hardware_id {
238 struct list_head list;
239 const char *id;
240};
241
242struct acpi_pnp_type {
243 u32 hardware_id:1;
244 u32 bus_address:1;
245 u32 platform_id:1;
246 u32 reserved:29;
247};
248
249struct acpi_device_pnp {
250 acpi_bus_id bus_id; /* Object name */
251 struct acpi_pnp_type type; /* ID type */
252 acpi_bus_address bus_address; /* _ADR */
253 char *unique_id; /* _UID */
254 struct list_head ids; /* _HID and _CIDs */
255 acpi_device_name device_name; /* Driver-determined */
256 acpi_device_class device_class; /* " */
257 union acpi_object *str_obj; /* unicode string for _STR method */
258};
259
260#define acpi_device_bid(d) ((d)->pnp.bus_id)
261#define acpi_device_adr(d) ((d)->pnp.bus_address)
262const char *acpi_device_hid(struct acpi_device *device);
263#define acpi_device_uid(d) ((d)->pnp.unique_id)
264#define acpi_device_name(d) ((d)->pnp.device_name)
265#define acpi_device_class(d) ((d)->pnp.device_class)
266
267/* Power Management */
268
269struct acpi_device_power_flags {
270 u32 explicit_get:1; /* _PSC present? */
271 u32 power_resources:1; /* Power resources */
272 u32 inrush_current:1; /* Serialize Dx->D0 */
273 u32 power_removed:1; /* Optimize Dx->D0 */
274 u32 ignore_parent:1; /* Power is independent of parent power state */
275 u32 dsw_present:1; /* _DSW present? */
276 u32 reserved:26;
277};
278
279struct acpi_device_power_state {
280 struct {
281 u8 valid:1;
282 u8 explicit_set:1; /* _PSx present? */
283 u8 reserved:6;
284 } flags;
285 int power; /* % Power (compared to D0) */
286 int latency; /* Dx->D0 time (microseconds) */
287 struct list_head resources; /* Power resources referenced */
288};
289
290struct acpi_device_power {
291 int state; /* Current state */
292 struct acpi_device_power_flags flags;
293 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
294};
295
296/* Performance Management */
297
298struct acpi_device_perf_flags {
299 u8 reserved:8;
300};
301
302struct acpi_device_perf_state {
303 struct {
304 u8 valid:1;
305 u8 reserved:7;
306 } flags;
307 u8 power; /* % Power (compared to P0) */
308 u8 performance; /* % Performance ( " ) */
309 int latency; /* Px->P0 time (microseconds) */
310};
311
312struct acpi_device_perf {
313 int state;
314 struct acpi_device_perf_flags flags;
315 int state_count;
316 struct acpi_device_perf_state *states;
317};
318
319/* Wakeup Management */
320struct acpi_device_wakeup_flags {
321 u8 valid:1; /* Can successfully enable wakeup? */
322 u8 notifier_present:1; /* Wake-up notify handler has been installed */
323};
324
325struct acpi_device_wakeup_context {
326 void (*func)(struct acpi_device_wakeup_context *context);
327 struct device *dev;
328};
329
330struct acpi_device_wakeup {
331 acpi_handle gpe_device;
332 u64 gpe_number;
333 u64 sleep_state;
334 struct list_head resources;
335 struct acpi_device_wakeup_flags flags;
336 struct acpi_device_wakeup_context context;
337 struct wakeup_source *ws;
338 int prepare_count;
339 int enable_count;
340};
341
342struct acpi_device_physical_node {
343 unsigned int node_id;
344 struct list_head node;
345 struct device *dev;
346 bool put_online:1;
347};
348
349struct acpi_device_properties {
350 const guid_t *guid;
351 const union acpi_object *properties;
352 struct list_head list;
353};
354
355/* ACPI Device Specific Data (_DSD) */
356struct acpi_device_data {
357 const union acpi_object *pointer;
358 struct list_head properties;
359 const union acpi_object *of_compatible;
360 struct list_head subnodes;
361};
362
363struct acpi_gpio_mapping;
364
365/* Device */
366struct acpi_device {
367 int device_type;
368 acpi_handle handle; /* no handle for fixed hardware */
369 struct fwnode_handle fwnode;
370 struct acpi_device *parent;
371 struct list_head children;
372 struct list_head node;
373 struct list_head wakeup_list;
374 struct list_head del_list;
375 struct acpi_device_status status;
376 struct acpi_device_flags flags;
377 struct acpi_device_pnp pnp;
378 struct acpi_device_power power;
379 struct acpi_device_wakeup wakeup;
380 struct acpi_device_perf performance;
381 struct acpi_device_dir dir;
382 struct acpi_device_data data;
383 struct acpi_scan_handler *handler;
384 struct acpi_hotplug_context *hp;
385 struct acpi_driver *driver;
386 const struct acpi_gpio_mapping *driver_gpios;
387 void *driver_data;
388 struct device dev;
389 unsigned int physical_node_count;
390 unsigned int dep_unmet;
391 struct list_head physical_node_list;
392 struct mutex physical_node_lock;
393 void (*remove)(struct acpi_device *);
394};
395
396/* Non-device subnode */
397struct acpi_data_node {
398 const char *name;
399 acpi_handle handle;
400 struct fwnode_handle fwnode;
401 struct fwnode_handle *parent;
402 struct acpi_device_data data;
403 struct list_head sibling;
404 struct kobject kobj;
405 struct completion kobj_done;
406};
407
408extern const struct fwnode_operations acpi_device_fwnode_ops;
409extern const struct fwnode_operations acpi_data_fwnode_ops;
410extern const struct fwnode_operations acpi_static_fwnode_ops;
411
412bool is_acpi_device_node(const struct fwnode_handle *fwnode);
413bool is_acpi_data_node(const struct fwnode_handle *fwnode);
414
415static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
416{
417 return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
418}
419
420#define to_acpi_device_node(__fwnode) \
421 ({ \
422 typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
423 \
424 is_acpi_device_node(__to_acpi_device_node_fwnode) ? \
425 container_of(__to_acpi_device_node_fwnode, \
426 struct acpi_device, fwnode) : \
427 NULL; \
428 })
429
430#define to_acpi_data_node(__fwnode) \
431 ({ \
432 typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \
433 \
434 is_acpi_data_node(__to_acpi_data_node_fwnode) ? \
435 container_of(__to_acpi_data_node_fwnode, \
436 struct acpi_data_node, fwnode) : \
437 NULL; \
438 })
439
440static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
441{
442 return !IS_ERR_OR_NULL(fwnode) &&
443 fwnode->ops == &acpi_static_fwnode_ops;
444}
445
446static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
447 const char *name)
448{
449 return is_acpi_data_node(fwnode) ?
450 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
451}
452
453static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
454{
455 return &adev->fwnode;
456}
457
458static inline void *acpi_driver_data(struct acpi_device *d)
459{
460 return d->driver_data;
461}
462
463#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
464#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
465
466static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
467{
468 *((u32 *)&adev->status) = sta;
469}
470
471static inline void acpi_set_hp_context(struct acpi_device *adev,
472 struct acpi_hotplug_context *hp)
473{
474 hp->self = adev;
475 adev->hp = hp;
476}
477
478void acpi_initialize_hp_context(struct acpi_device *adev,
479 struct acpi_hotplug_context *hp,
480 int (*notify)(struct acpi_device *, u32),
481 void (*uevent)(struct acpi_device *, u32));
482
483/* acpi_device.dev.bus == &acpi_bus_type */
484extern struct bus_type acpi_bus_type;
485
486/*
487 * Events
488 * ------
489 */
490
491struct acpi_bus_event {
492 struct list_head node;
493 acpi_device_class device_class;
494 acpi_bus_id bus_id;
495 u32 type;
496 u32 data;
497};
498
499extern struct kobject *acpi_kobj;
500extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
501void acpi_bus_private_data_handler(acpi_handle, void *);
502int acpi_bus_get_private_data(acpi_handle, void **);
503int acpi_bus_attach_private_data(acpi_handle, void *);
504void acpi_bus_detach_private_data(acpi_handle);
505extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
506extern int register_acpi_notifier(struct notifier_block *);
507extern int unregister_acpi_notifier(struct notifier_block *);
508
509/*
510 * External Functions
511 */
512
513int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
514struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
515void acpi_bus_put_acpi_device(struct acpi_device *adev);
516acpi_status acpi_bus_get_status_handle(acpi_handle handle,
517 unsigned long long *sta);
518int acpi_bus_get_status(struct acpi_device *device);
519
520int acpi_bus_set_power(acpi_handle handle, int state);
521const char *acpi_power_state_string(int state);
522int acpi_device_get_power(struct acpi_device *device, int *state);
523int acpi_device_set_power(struct acpi_device *device, int state);
524int acpi_bus_init_power(struct acpi_device *device);
525int acpi_device_fix_up_power(struct acpi_device *device);
526int acpi_bus_update_power(acpi_handle handle, int *state_p);
527int acpi_device_update_power(struct acpi_device *device, int *state_p);
528bool acpi_bus_power_manageable(acpi_handle handle);
529
530#ifdef CONFIG_PM
531bool acpi_bus_can_wakeup(acpi_handle handle);
532#else
533static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
534#endif
535
536void acpi_scan_lock_acquire(void);
537void acpi_scan_lock_release(void);
538void acpi_lock_hp_context(void);
539void acpi_unlock_hp_context(void);
540int acpi_scan_add_handler(struct acpi_scan_handler *handler);
541int acpi_bus_register_driver(struct acpi_driver *driver);
542void acpi_bus_unregister_driver(struct acpi_driver *driver);
543int acpi_bus_scan(acpi_handle handle);
544void acpi_bus_trim(struct acpi_device *start);
545acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
546int acpi_match_device_ids(struct acpi_device *device,
547 const struct acpi_device_id *ids);
548void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
549 char *modalias, size_t len);
550int acpi_create_dir(struct acpi_device *);
551void acpi_remove_dir(struct acpi_device *);
552
553static inline bool acpi_device_enumerated(struct acpi_device *adev)
554{
555 return adev && adev->flags.initialized && adev->flags.visited;
556}
557
558/**
559 * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
560 * @__acpi_driver: acpi_driver struct
561 *
562 * Helper macro for ACPI drivers which do not do anything special in module
563 * init/exit. This eliminates a lot of boilerplate. Each module may only
564 * use this macro once, and calling it replaces module_init() and module_exit()
565 */
566#define module_acpi_driver(__acpi_driver) \
567 module_driver(__acpi_driver, acpi_bus_register_driver, \
568 acpi_bus_unregister_driver)
569
570/*
571 * Bind physical devices with ACPI devices
572 */
573struct acpi_bus_type {
574 struct list_head list;
575 const char *name;
576 bool (*match)(struct device *dev);
577 struct acpi_device * (*find_companion)(struct device *);
578 void (*setup)(struct device *);
579 void (*cleanup)(struct device *);
580};
581int register_acpi_bus_type(struct acpi_bus_type *);
582int unregister_acpi_bus_type(struct acpi_bus_type *);
583int acpi_bind_one(struct device *dev, struct acpi_device *adev);
584int acpi_unbind_one(struct device *dev);
585
586struct acpi_pci_root {
587 struct acpi_device * device;
588 struct pci_bus *bus;
589 u16 segment;
590 struct resource secondary; /* downstream bus range */
591
592 u32 osc_support_set; /* _OSC state of support bits */
593 u32 osc_control_set; /* _OSC state of control bits */
594 phys_addr_t mcfg_addr;
595};
596
597/* helper */
598
599bool acpi_dma_supported(struct acpi_device *adev);
600enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
601int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset,
602 u64 *size);
603int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr);
604
605struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
606 u64 address, bool check_children);
607int acpi_is_root_bridge(acpi_handle);
608struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
609
610int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
611int acpi_disable_wakeup_device_power(struct acpi_device *dev);
612
613#ifdef CONFIG_X86
614bool acpi_device_always_present(struct acpi_device *adev);
615#else
616static inline bool acpi_device_always_present(struct acpi_device *adev)
617{
618 return false;
619}
620#endif
621
622#ifdef CONFIG_PM
623void acpi_pm_wakeup_event(struct device *dev);
624acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
625 void (*func)(struct acpi_device_wakeup_context *context));
626acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
627bool acpi_pm_device_can_wakeup(struct device *dev);
628int acpi_pm_device_sleep_state(struct device *, int *, int);
629int acpi_pm_set_device_wakeup(struct device *dev, bool enable);
630int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable);
631#else
632static inline void acpi_pm_wakeup_event(struct device *dev)
633{
634}
635static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
636 struct device *dev,
637 void (*func)(struct acpi_device_wakeup_context *context))
638{
639 return AE_SUPPORT;
640}
641static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
642{
643 return AE_SUPPORT;
644}
645static inline bool acpi_pm_device_can_wakeup(struct device *dev)
646{
647 return false;
648}
649static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
650{
651 if (p)
652 *p = ACPI_STATE_D0;
653
654 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
655 m : ACPI_STATE_D0;
656}
657static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
658{
659 return -ENODEV;
660}
661static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable)
662{
663 return -ENODEV;
664}
665#endif
666
667#ifdef CONFIG_ACPI_SLEEP
668u32 acpi_target_system_state(void);
669#else
670static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
671#endif
672
673static inline bool acpi_device_power_manageable(struct acpi_device *adev)
674{
675 return adev->flags.power_manageable;
676}
677
678static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
679{
680 return adev->wakeup.flags.valid;
681}
682
683static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
684{
685 return adev->power.states[ACPI_STATE_D3_COLD].flags.valid ||
686 ((acpi_gbl_FADT.header.revision < 6) &&
687 adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
688}
689
690#else /* CONFIG_ACPI */
691
692static inline int register_acpi_bus_type(void *bus) { return 0; }
693static inline int unregister_acpi_bus_type(void *bus) { return 0; }
694
695#endif /* CONFIG_ACPI */
696
697#endif /*__ACPI_BUS_H__*/
698