1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
5 * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
6 * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
10 #define __ACPI_BUS_H__
12 #include <linux/device.h>
13 #include <linux/property.h>
15 struct acpi_handle_list {
22 acpi_extract_package(union acpi_object *package,
23 struct acpi_buffer *format, struct acpi_buffer *buffer);
25 acpi_evaluate_integer(acpi_handle handle,
27 struct acpi_object_list *arguments, unsigned long long *data);
28 bool acpi_evaluate_reference(acpi_handle handle, acpi_string pathname,
29 struct acpi_object_list *arguments,
30 struct acpi_handle_list *list);
31 bool acpi_handle_list_equal(struct acpi_handle_list *list1,
32 struct acpi_handle_list *list2);
33 void acpi_handle_list_replace(struct acpi_handle_list *dst,
34 struct acpi_handle_list *src);
35 void acpi_handle_list_free(struct acpi_handle_list *list);
37 acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
38 struct acpi_buffer *status_buf);
41 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
43 bool acpi_has_method(acpi_handle handle, char *name);
44 acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
46 acpi_status acpi_evaluate_ej0(acpi_handle handle);
47 acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
48 acpi_status acpi_evaluate_reg(acpi_handle handle, u8 space_id, u32 function);
49 bool acpi_ata_match(acpi_handle handle);
50 bool acpi_bay_match(acpi_handle handle);
51 bool acpi_dock_match(acpi_handle handle);
53 bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs);
54 union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
55 u64 rev, u64 func, union acpi_object *argv4);
57 static inline union acpi_object *
58 acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
59 u64 func, union acpi_object *argv4,
60 acpi_object_type type)
62 union acpi_object *obj;
64 obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4);
65 if (obj && obj->type != type) {
74 #define ACPI_INIT_DSM_ARGV4(cnt, eles) \
76 .package.type = ACPI_TYPE_PACKAGE, \
77 .package.count = (cnt), \
78 .package.elements = (eles) \
81 bool acpi_dev_found(const char *hid);
82 bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
83 bool acpi_reduced_hardware(void);
87 struct proc_dir_entry;
89 #define ACPI_BUS_FILE_ROOT "acpi"
90 extern struct proc_dir_entry *acpi_root_dir;
92 enum acpi_bus_device_type {
93 ACPI_BUS_TYPE_DEVICE = 0,
95 ACPI_BUS_TYPE_PROCESSOR,
96 ACPI_BUS_TYPE_THERMAL,
97 ACPI_BUS_TYPE_POWER_BUTTON,
98 ACPI_BUS_TYPE_SLEEP_BUTTON,
99 ACPI_BUS_TYPE_ECDT_EC,
100 ACPI_BUS_DEVICE_TYPE_COUNT
111 struct acpi_hotplug_profile {
113 int (*scan_dependent)(struct acpi_device *adev);
114 void (*notify_online)(struct acpi_device *adev);
116 bool demand_offline:1;
119 static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
120 struct kobject *kobj)
122 return container_of(kobj, struct acpi_hotplug_profile, kobj);
125 struct acpi_scan_handler {
126 const struct acpi_device_id *ids;
127 struct list_head list_node;
128 bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
129 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
130 void (*detach)(struct acpi_device *dev);
131 void (*bind)(struct device *phys_dev);
132 void (*unbind)(struct device *phys_dev);
133 struct acpi_hotplug_profile hotplug;
137 * ACPI Hotplug Context
138 * --------------------
141 struct acpi_hotplug_context {
142 struct acpi_device *self;
143 int (*notify)(struct acpi_device *, u32);
144 void (*uevent)(struct acpi_device *, u32);
145 void (*fixup)(struct acpi_device *);
153 typedef int (*acpi_op_add) (struct acpi_device * device);
154 typedef void (*acpi_op_remove) (struct acpi_device *device);
155 typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
157 struct acpi_device_ops {
159 acpi_op_remove remove;
160 acpi_op_notify notify;
163 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
168 const struct acpi_device_id *ids; /* Supported Hardware IDs */
170 struct acpi_device_ops ops;
171 struct device_driver drv;
172 struct module *owner;
182 struct acpi_device_status {
187 u32 battery_present:1;
193 struct acpi_device_flags {
194 u32 dynamic_status:1;
197 u32 power_manageable:1;
201 u32 hotplug_notify:1;
202 u32 is_dock_station:1;
203 u32 of_compatible_ok:1;
206 u32 enumeration_by_parent:1;
213 struct acpi_device_dir {
214 struct proc_dir_entry *entry;
217 #define acpi_device_dir(d) ((d)->dir.entry)
221 typedef char acpi_bus_id[8];
222 typedef u64 acpi_bus_address;
223 typedef char acpi_device_name[40];
224 typedef char acpi_device_class[20];
226 struct acpi_hardware_id {
227 struct list_head list;
231 struct acpi_pnp_type {
239 struct acpi_device_pnp {
240 acpi_bus_id bus_id; /* Object name */
241 int instance_no; /* Instance number of this object */
242 struct acpi_pnp_type type; /* ID type */
243 acpi_bus_address bus_address; /* _ADR */
244 char *unique_id; /* _UID */
245 struct list_head ids; /* _HID and _CIDs */
246 acpi_device_name device_name; /* Driver-determined */
247 acpi_device_class device_class; /* " */
248 union acpi_object *str_obj; /* unicode string for _STR method */
251 #define acpi_device_bid(d) ((d)->pnp.bus_id)
252 #define acpi_device_adr(d) ((d)->pnp.bus_address)
253 const char *acpi_device_hid(struct acpi_device *device);
254 #define acpi_device_uid(d) ((d)->pnp.unique_id)
255 #define acpi_device_name(d) ((d)->pnp.device_name)
256 #define acpi_device_class(d) ((d)->pnp.device_class)
258 /* Power Management */
260 struct acpi_device_power_flags {
261 u32 explicit_get:1; /* _PSC present? */
262 u32 power_resources:1; /* Power resources */
263 u32 inrush_current:1; /* Serialize Dx->D0 */
264 u32 power_removed:1; /* Optimize Dx->D0 */
265 u32 ignore_parent:1; /* Power is independent of parent power state */
266 u32 dsw_present:1; /* _DSW present? */
270 struct acpi_device_power_state {
273 u8 explicit_set:1; /* _PSx present? */
276 int power; /* % Power (compared to D0) */
277 int latency; /* Dx->D0 time (microseconds) */
278 struct list_head resources; /* Power resources referenced */
281 struct acpi_device_power {
282 int state; /* Current state */
283 struct acpi_device_power_flags flags;
284 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
285 u8 state_for_enumeration; /* Deepest power state for enumeration */
288 struct acpi_dep_data {
289 struct list_head node;
290 acpi_handle supplier;
291 acpi_handle consumer;
297 /* Performance Management */
299 struct acpi_device_perf_flags {
303 struct acpi_device_perf_state {
308 u8 power; /* % Power (compared to P0) */
309 u8 performance; /* % Performance ( " ) */
310 int latency; /* Px->P0 time (microseconds) */
313 struct acpi_device_perf {
315 struct acpi_device_perf_flags flags;
317 struct acpi_device_perf_state *states;
320 /* Wakeup Management */
321 struct acpi_device_wakeup_flags {
322 u8 valid:1; /* Can successfully enable wakeup? */
323 u8 notifier_present:1; /* Wake-up notify handler has been installed */
326 struct acpi_device_wakeup_context {
327 void (*func)(struct acpi_device_wakeup_context *context);
331 struct acpi_device_wakeup {
332 acpi_handle gpe_device;
335 struct list_head resources;
336 struct acpi_device_wakeup_flags flags;
337 struct acpi_device_wakeup_context context;
338 struct wakeup_source *ws;
343 struct acpi_device_physical_node {
344 unsigned int node_id;
345 struct list_head node;
350 struct acpi_device_properties {
352 union acpi_object *properties;
353 struct list_head list;
357 /* ACPI Device Specific Data (_DSD) */
358 struct acpi_device_data {
359 const union acpi_object *pointer;
360 struct list_head properties;
361 const union acpi_object *of_compatible;
362 struct list_head subnodes;
365 struct acpi_gpio_mapping;
371 acpi_handle handle; /* no handle for fixed hardware */
372 struct fwnode_handle fwnode;
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 const struct acpi_gpio_mapping *driver_gpios;
388 unsigned int physical_node_count;
389 unsigned int dep_unmet;
390 struct list_head physical_node_list;
391 struct mutex physical_node_lock;
392 void (*remove)(struct acpi_device *);
395 /* Non-device subnode */
396 struct acpi_data_node {
399 struct fwnode_handle fwnode;
400 struct fwnode_handle *parent;
401 struct acpi_device_data data;
402 struct list_head sibling;
404 struct completion kobj_done;
407 extern const struct fwnode_operations acpi_device_fwnode_ops;
408 extern const struct fwnode_operations acpi_data_fwnode_ops;
409 extern const struct fwnode_operations acpi_static_fwnode_ops;
411 bool is_acpi_device_node(const struct fwnode_handle *fwnode);
412 bool is_acpi_data_node(const struct fwnode_handle *fwnode);
414 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
416 return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
419 #define to_acpi_device_node(__fwnode) \
421 typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
423 is_acpi_device_node(__to_acpi_device_node_fwnode) ? \
424 container_of(__to_acpi_device_node_fwnode, \
425 struct acpi_device, fwnode) : \
429 #define to_acpi_data_node(__fwnode) \
431 typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \
433 is_acpi_data_node(__to_acpi_data_node_fwnode) ? \
434 container_of(__to_acpi_data_node_fwnode, \
435 struct acpi_data_node, fwnode) : \
439 static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
441 return !IS_ERR_OR_NULL(fwnode) &&
442 fwnode->ops == &acpi_static_fwnode_ops;
445 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
448 return is_acpi_data_node(fwnode) ?
449 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
452 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
454 return &adev->fwnode;
457 static inline void *acpi_driver_data(struct acpi_device *d)
459 return d->driver_data;
462 #define to_acpi_device(d) container_of(d, struct acpi_device, dev)
463 #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
465 static inline struct acpi_device *acpi_dev_parent(struct acpi_device *adev)
467 if (adev->dev.parent)
468 return to_acpi_device(adev->dev.parent);
473 static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
475 *((u32 *)&adev->status) = sta;
478 static inline void acpi_set_hp_context(struct acpi_device *adev,
479 struct acpi_hotplug_context *hp)
485 void acpi_initialize_hp_context(struct acpi_device *adev,
486 struct acpi_hotplug_context *hp,
487 int (*notify)(struct acpi_device *, u32),
488 void (*uevent)(struct acpi_device *, u32));
490 /* acpi_device.dev.bus == &acpi_bus_type */
491 extern struct bus_type acpi_bus_type;
493 int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
494 int acpi_dev_for_each_child(struct acpi_device *adev,
495 int (*fn)(struct acpi_device *, void *), void *data);
496 int acpi_dev_for_each_child_reverse(struct acpi_device *adev,
497 int (*fn)(struct acpi_device *, void *),
505 struct acpi_bus_event {
506 struct list_head node;
507 acpi_device_class device_class;
513 extern struct kobject *acpi_kobj;
514 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
515 void acpi_bus_private_data_handler(acpi_handle, void *);
516 int acpi_bus_get_private_data(acpi_handle, void **);
517 int acpi_bus_attach_private_data(acpi_handle, void *);
518 void acpi_bus_detach_private_data(acpi_handle);
519 int acpi_dev_install_notify_handler(struct acpi_device *adev,
521 acpi_notify_handler handler, void *context);
522 void acpi_dev_remove_notify_handler(struct acpi_device *adev,
524 acpi_notify_handler handler);
525 extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
526 extern int register_acpi_notifier(struct notifier_block *);
527 extern int unregister_acpi_notifier(struct notifier_block *);
533 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
534 unsigned long long *sta);
535 int acpi_bus_get_status(struct acpi_device *device);
537 int acpi_bus_set_power(acpi_handle handle, int state);
538 const char *acpi_power_state_string(int state);
539 int acpi_device_set_power(struct acpi_device *device, int state);
540 int acpi_bus_init_power(struct acpi_device *device);
541 int acpi_device_fix_up_power(struct acpi_device *device);
542 void acpi_device_fix_up_power_extended(struct acpi_device *adev);
543 void acpi_device_fix_up_power_children(struct acpi_device *adev);
544 int acpi_bus_update_power(acpi_handle handle, int *state_p);
545 int acpi_device_update_power(struct acpi_device *device, int *state_p);
546 bool acpi_bus_power_manageable(acpi_handle handle);
547 void acpi_dev_power_up_children_with_adr(struct acpi_device *adev);
548 u8 acpi_dev_power_state_for_wake(struct acpi_device *adev);
549 int acpi_device_power_add_dependent(struct acpi_device *adev,
551 void acpi_device_power_remove_dependent(struct acpi_device *adev,
555 bool acpi_bus_can_wakeup(acpi_handle handle);
557 static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
560 void acpi_scan_lock_acquire(void);
561 void acpi_scan_lock_release(void);
562 void acpi_lock_hp_context(void);
563 void acpi_unlock_hp_context(void);
564 int acpi_scan_add_handler(struct acpi_scan_handler *handler);
565 int acpi_bus_register_driver(struct acpi_driver *driver);
566 void acpi_bus_unregister_driver(struct acpi_driver *driver);
567 int acpi_bus_scan(acpi_handle handle);
568 void acpi_bus_trim(struct acpi_device *start);
569 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
570 int acpi_match_device_ids(struct acpi_device *device,
571 const struct acpi_device_id *ids);
572 void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
573 char *modalias, size_t len);
575 static inline bool acpi_device_enumerated(struct acpi_device *adev)
577 return adev && adev->flags.initialized && adev->flags.visited;
581 * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
582 * @__acpi_driver: acpi_driver struct
584 * Helper macro for ACPI drivers which do not do anything special in module
585 * init/exit. This eliminates a lot of boilerplate. Each module may only
586 * use this macro once, and calling it replaces module_init() and module_exit()
588 #define module_acpi_driver(__acpi_driver) \
589 module_driver(__acpi_driver, acpi_bus_register_driver, \
590 acpi_bus_unregister_driver)
593 * Bind physical devices with ACPI devices
595 struct acpi_bus_type {
596 struct list_head list;
598 bool (*match)(struct device *dev);
599 struct acpi_device * (*find_companion)(struct device *);
600 void (*setup)(struct device *);
602 int register_acpi_bus_type(struct acpi_bus_type *);
603 int unregister_acpi_bus_type(struct acpi_bus_type *);
604 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
605 int acpi_unbind_one(struct device *dev);
607 enum acpi_bridge_type {
608 ACPI_BRIDGE_TYPE_PCIE = 1,
609 ACPI_BRIDGE_TYPE_CXL,
612 struct acpi_pci_root {
613 struct acpi_device * device;
617 struct resource secondary; /* downstream bus range */
619 u32 osc_support_set; /* _OSC state of support bits */
620 u32 osc_control_set; /* _OSC state of control bits */
621 u32 osc_ext_support_set; /* _OSC state of extended support bits */
622 u32 osc_ext_control_set; /* _OSC state of extended control bits */
623 phys_addr_t mcfg_addr;
628 bool acpi_dma_supported(const struct acpi_device *adev);
629 enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
630 int acpi_iommu_fwspec_init(struct device *dev, u32 id,
631 struct fwnode_handle *fwnode,
632 const struct iommu_ops *ops);
633 int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map);
634 int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr,
635 const u32 *input_id);
636 static inline int acpi_dma_configure(struct device *dev,
637 enum dev_dma_attr attr)
639 return acpi_dma_configure_id(dev, attr, NULL);
641 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
642 u64 address, bool check_children);
643 struct acpi_device *acpi_find_child_by_adr(struct acpi_device *adev,
644 acpi_bus_address adr);
645 int acpi_is_root_bridge(acpi_handle);
646 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
648 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
649 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
652 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status);
653 bool acpi_quirk_skip_acpi_ac_and_battery(void);
654 int acpi_install_cmos_rtc_space_handler(acpi_handle handle);
655 void acpi_remove_cmos_rtc_space_handler(acpi_handle handle);
657 static inline bool acpi_device_override_status(struct acpi_device *adev,
658 unsigned long long *status)
662 static inline bool acpi_quirk_skip_acpi_ac_and_battery(void)
666 static inline int acpi_install_cmos_rtc_space_handler(acpi_handle handle)
670 static inline void acpi_remove_cmos_rtc_space_handler(acpi_handle handle)
675 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
676 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev);
677 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip);
678 bool acpi_quirk_skip_gpio_event_handlers(void);
680 static inline bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
685 acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
690 static inline bool acpi_quirk_skip_gpio_event_handlers(void)
697 void acpi_pm_wakeup_event(struct device *dev);
698 acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
699 void (*func)(struct acpi_device_wakeup_context *context));
700 acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
701 bool acpi_pm_device_can_wakeup(struct device *dev);
702 int acpi_pm_device_sleep_state(struct device *, int *, int);
703 int acpi_pm_set_device_wakeup(struct device *dev, bool enable);
705 static inline void acpi_pm_wakeup_event(struct device *dev)
708 static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
710 void (*func)(struct acpi_device_wakeup_context *context))
714 static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
718 static inline bool acpi_pm_device_can_wakeup(struct device *dev)
722 static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
727 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
730 static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
736 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
737 bool acpi_sleep_state_supported(u8 sleep_state);
739 static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
742 #ifdef CONFIG_ACPI_SLEEP
743 u32 acpi_target_system_state(void);
745 static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
748 static inline bool acpi_device_power_manageable(struct acpi_device *adev)
750 return adev->flags.power_manageable;
753 static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
755 return adev->wakeup.flags.valid;
758 static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
760 return adev->power.states[ACPI_STATE_D3_COLD].flags.valid ||
761 ((acpi_gbl_FADT.header.revision < 6) &&
762 adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
765 int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer);
767 static inline bool acpi_dev_hid_match(struct acpi_device *adev, const char *hid2)
769 const char *hid1 = acpi_device_hid(adev);
771 return hid1 && hid2 && !strcmp(hid1, hid2);
774 static inline bool acpi_str_uid_match(struct acpi_device *adev, const char *uid2)
776 const char *uid1 = acpi_device_uid(adev);
778 return uid1 && uid2 && !strcmp(uid1, uid2);
781 static inline bool acpi_int_uid_match(struct acpi_device *adev, u64 uid2)
785 return !acpi_dev_uid_to_integer(adev, &uid1) && uid1 == uid2;
788 #define TYPE_ENTRY(type, x) \
792 #define ACPI_STR_TYPES(match) \
793 TYPE_ENTRY(unsigned char *, match), \
794 TYPE_ENTRY(signed char *, match), \
795 TYPE_ENTRY(char *, match), \
796 TYPE_ENTRY(void *, match)
799 * acpi_dev_uid_match - Match device by supplied UID
800 * @adev: ACPI device to match.
801 * @uid2: Unique ID of the device.
803 * Matches UID in @adev with given @uid2.
805 * Returns: %true if matches, %false otherwise.
807 #define acpi_dev_uid_match(adev, uid2) \
809 /* Treat @uid2 as a string for acpi string types */ \
810 ACPI_STR_TYPES(acpi_str_uid_match), \
811 /* Treat as an integer otherwise */ \
812 default: acpi_int_uid_match)(adev, uid2)
815 * acpi_dev_hid_uid_match - Match device by supplied HID and UID
816 * @adev: ACPI device to match.
817 * @hid2: Hardware ID of the device.
818 * @uid2: Unique ID of the device, pass 0 or NULL to not check _UID.
820 * Matches HID and UID in @adev with given @hid2 and @uid2. Absence of @uid2
821 * will be treated as a match. If user wants to validate @uid2, it should be
822 * done before calling this function.
824 * Returns: %true if matches or @uid2 is 0 or NULL, %false otherwise.
826 #define acpi_dev_hid_uid_match(adev, hid2, uid2) \
827 (acpi_dev_hid_match(adev, hid2) && \
828 (!(uid2) || acpi_dev_uid_match(adev, uid2)))
830 void acpi_dev_clear_dependencies(struct acpi_device *supplier);
831 bool acpi_dev_ready_for_enumeration(const struct acpi_device *device);
832 struct acpi_device *acpi_dev_get_next_consumer_dev(struct acpi_device *supplier,
833 struct acpi_device *start);
836 * for_each_acpi_consumer_dev - iterate over the consumer ACPI devices for a
838 * @supplier: Pointer to the supplier's ACPI device
839 * @consumer: Pointer to &struct acpi_device to hold the consumer, initially NULL
841 #define for_each_acpi_consumer_dev(supplier, consumer) \
842 for (consumer = acpi_dev_get_next_consumer_dev(supplier, NULL); \
844 consumer = acpi_dev_get_next_consumer_dev(supplier, consumer))
847 acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv);
849 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv);
852 * for_each_acpi_dev_match - iterate over ACPI devices that matching the criteria
853 * @adev: pointer to the matching ACPI device, NULL at the end of the loop
854 * @hid: Hardware ID of the device.
855 * @uid: Unique ID of the device, pass NULL to not check _UID
856 * @hrv: Hardware Revision of the device, pass -1 to not check _HRV
858 * The caller is responsible for invoking acpi_dev_put() on the returned device.
860 #define for_each_acpi_dev_match(adev, hid, uid, hrv) \
861 for (adev = acpi_dev_get_first_match_dev(hid, uid, hrv); \
863 adev = acpi_dev_get_next_match_dev(adev, hid, uid, hrv))
865 static inline struct acpi_device *acpi_dev_get(struct acpi_device *adev)
867 return adev ? to_acpi_device(get_device(&adev->dev)) : NULL;
870 static inline void acpi_dev_put(struct acpi_device *adev)
873 put_device(&adev->dev);
876 struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle);
877 struct acpi_device *acpi_get_acpi_dev(acpi_handle handle);
879 static inline void acpi_put_acpi_dev(struct acpi_device *adev)
883 #else /* CONFIG_ACPI */
885 static inline int register_acpi_bus_type(void *bus) { return 0; }
886 static inline int unregister_acpi_bus_type(void *bus) { return 0; }
888 #endif /* CONFIG_ACPI */
890 #endif /*__ACPI_BUS_H__*/