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);
29 acpi_evaluate_reference(acpi_handle handle,
31 struct acpi_object_list *arguments,
32 struct acpi_handle_list *list);
33 bool acpi_handle_list_equal(struct acpi_handle_list *list1,
34 struct acpi_handle_list *list2);
35 void acpi_handle_list_replace(struct acpi_handle_list *dst,
36 struct acpi_handle_list *src);
37 void acpi_handle_list_free(struct acpi_handle_list *list);
39 acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
40 struct acpi_buffer *status_buf);
43 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
45 bool acpi_has_method(acpi_handle handle, char *name);
46 acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
48 acpi_status acpi_evaluate_ej0(acpi_handle handle);
49 acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
50 acpi_status acpi_evaluate_reg(acpi_handle handle, u8 space_id, u32 function);
51 bool acpi_ata_match(acpi_handle handle);
52 bool acpi_bay_match(acpi_handle handle);
53 bool acpi_dock_match(acpi_handle handle);
55 bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs);
56 union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
57 u64 rev, u64 func, union acpi_object *argv4);
59 static inline union acpi_object *
60 acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
61 u64 func, union acpi_object *argv4,
62 acpi_object_type type)
64 union acpi_object *obj;
66 obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4);
67 if (obj && obj->type != type) {
76 #define ACPI_INIT_DSM_ARGV4(cnt, eles) \
78 .package.type = ACPI_TYPE_PACKAGE, \
79 .package.count = (cnt), \
80 .package.elements = (eles) \
83 bool acpi_dev_found(const char *hid);
84 bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
85 bool acpi_reduced_hardware(void);
89 struct proc_dir_entry;
91 #define ACPI_BUS_FILE_ROOT "acpi"
92 extern struct proc_dir_entry *acpi_root_dir;
94 enum acpi_bus_device_type {
95 ACPI_BUS_TYPE_DEVICE = 0,
97 ACPI_BUS_TYPE_PROCESSOR,
98 ACPI_BUS_TYPE_THERMAL,
99 ACPI_BUS_TYPE_POWER_BUTTON,
100 ACPI_BUS_TYPE_SLEEP_BUTTON,
101 ACPI_BUS_TYPE_ECDT_EC,
102 ACPI_BUS_DEVICE_TYPE_COUNT
113 struct acpi_hotplug_profile {
115 int (*scan_dependent)(struct acpi_device *adev);
116 void (*notify_online)(struct acpi_device *adev);
118 bool demand_offline:1;
121 static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
122 struct kobject *kobj)
124 return container_of(kobj, struct acpi_hotplug_profile, kobj);
127 struct acpi_scan_handler {
128 const struct acpi_device_id *ids;
129 struct list_head list_node;
130 bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
131 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
132 void (*detach)(struct acpi_device *dev);
133 void (*bind)(struct device *phys_dev);
134 void (*unbind)(struct device *phys_dev);
135 struct acpi_hotplug_profile hotplug;
139 * ACPI Hotplug Context
140 * --------------------
143 struct acpi_hotplug_context {
144 struct acpi_device *self;
145 int (*notify)(struct acpi_device *, u32);
146 void (*uevent)(struct acpi_device *, u32);
147 void (*fixup)(struct acpi_device *);
155 typedef int (*acpi_op_add) (struct acpi_device * device);
156 typedef void (*acpi_op_remove) (struct acpi_device *device);
157 typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
159 struct acpi_device_ops {
161 acpi_op_remove remove;
162 acpi_op_notify notify;
165 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
170 const struct acpi_device_id *ids; /* Supported Hardware IDs */
172 struct acpi_device_ops ops;
173 struct device_driver drv;
174 struct module *owner;
184 struct acpi_device_status {
189 u32 battery_present:1;
195 struct acpi_device_flags {
196 u32 dynamic_status:1;
199 u32 power_manageable:1;
203 u32 hotplug_notify:1;
204 u32 is_dock_station:1;
205 u32 of_compatible_ok:1;
208 u32 enumeration_by_parent:1;
215 struct acpi_device_dir {
216 struct proc_dir_entry *entry;
219 #define acpi_device_dir(d) ((d)->dir.entry)
223 typedef char acpi_bus_id[8];
224 typedef u64 acpi_bus_address;
225 typedef char acpi_device_name[40];
226 typedef char acpi_device_class[20];
228 struct acpi_hardware_id {
229 struct list_head list;
233 struct acpi_pnp_type {
241 struct acpi_device_pnp {
242 acpi_bus_id bus_id; /* Object name */
243 int instance_no; /* Instance number of this object */
244 struct acpi_pnp_type type; /* ID type */
245 acpi_bus_address bus_address; /* _ADR */
246 char *unique_id; /* _UID */
247 struct list_head ids; /* _HID and _CIDs */
248 acpi_device_name device_name; /* Driver-determined */
249 acpi_device_class device_class; /* " */
250 union acpi_object *str_obj; /* unicode string for _STR method */
253 #define acpi_device_bid(d) ((d)->pnp.bus_id)
254 #define acpi_device_adr(d) ((d)->pnp.bus_address)
255 const 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)
260 /* Power Management */
262 struct acpi_device_power_flags {
263 u32 explicit_get:1; /* _PSC present? */
264 u32 power_resources:1; /* Power resources */
265 u32 inrush_current:1; /* Serialize Dx->D0 */
266 u32 power_removed:1; /* Optimize Dx->D0 */
267 u32 ignore_parent:1; /* Power is independent of parent power state */
268 u32 dsw_present:1; /* _DSW present? */
272 struct acpi_device_power_state {
275 u8 explicit_set:1; /* _PSx present? */
278 int power; /* % Power (compared to D0) */
279 int latency; /* Dx->D0 time (microseconds) */
280 struct list_head resources; /* Power resources referenced */
283 struct acpi_device_power {
284 int state; /* Current state */
285 struct acpi_device_power_flags flags;
286 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
287 u8 state_for_enumeration; /* Deepest power state for enumeration */
290 struct acpi_dep_data {
291 struct list_head node;
292 acpi_handle supplier;
293 acpi_handle consumer;
299 /* Performance Management */
301 struct acpi_device_perf_flags {
305 struct acpi_device_perf_state {
310 u8 power; /* % Power (compared to P0) */
311 u8 performance; /* % Performance ( " ) */
312 int latency; /* Px->P0 time (microseconds) */
315 struct acpi_device_perf {
317 struct acpi_device_perf_flags flags;
319 struct acpi_device_perf_state *states;
322 /* Wakeup Management */
323 struct acpi_device_wakeup_flags {
324 u8 valid:1; /* Can successfully enable wakeup? */
325 u8 notifier_present:1; /* Wake-up notify handler has been installed */
328 struct acpi_device_wakeup_context {
329 void (*func)(struct acpi_device_wakeup_context *context);
333 struct acpi_device_wakeup {
334 acpi_handle gpe_device;
337 struct list_head resources;
338 struct acpi_device_wakeup_flags flags;
339 struct acpi_device_wakeup_context context;
340 struct wakeup_source *ws;
345 struct acpi_device_physical_node {
346 unsigned int node_id;
347 struct list_head node;
352 struct acpi_device_properties {
354 union acpi_object *properties;
355 struct list_head list;
359 /* ACPI Device Specific Data (_DSD) */
360 struct acpi_device_data {
361 const union acpi_object *pointer;
362 struct list_head properties;
363 const union acpi_object *of_compatible;
364 struct list_head subnodes;
367 struct acpi_gpio_mapping;
369 #define ACPI_DEVICE_SWNODE_ROOT 0
372 * The maximum expected number of CSI-2 data lanes.
374 * This number is not expected to ever have to be equal to or greater than the
375 * number of bits in an unsigned long variable, but if it needs to be increased
376 * above that limit, code will need to be adjusted accordingly.
378 #define ACPI_DEVICE_CSI2_DATA_LANES 8
380 #define ACPI_DEVICE_SWNODE_PORT_NAME_LENGTH 8
382 enum acpi_device_swnode_dev_props {
383 ACPI_DEVICE_SWNODE_DEV_NUM_OF,
384 ACPI_DEVICE_SWNODE_DEV_NUM_ENTRIES
387 enum acpi_device_swnode_port_props {
388 ACPI_DEVICE_SWNODE_PORT_REG,
389 ACPI_DEVICE_SWNODE_PORT_NUM_OF,
390 ACPI_DEVICE_SWNODE_PORT_NUM_ENTRIES
393 enum acpi_device_swnode_ep_props {
394 ACPI_DEVICE_SWNODE_EP_REMOTE_EP,
395 ACPI_DEVICE_SWNODE_EP_BUS_TYPE,
396 ACPI_DEVICE_SWNODE_EP_REG,
397 ACPI_DEVICE_SWNODE_EP_CLOCK_LANES,
398 ACPI_DEVICE_SWNODE_EP_DATA_LANES,
399 ACPI_DEVICE_SWNODE_EP_LANE_POLARITIES,
401 ACPI_DEVICE_SWNODE_EP_LINK_FREQUENCIES,
402 ACPI_DEVICE_SWNODE_EP_NUM_OF,
403 ACPI_DEVICE_SWNODE_EP_NUM_ENTRIES
407 * Each device has a root software node plus two times as many nodes as the
408 * number of CSI-2 ports.
410 #define ACPI_DEVICE_SWNODE_PORT(port) (2 * (port) + 1)
411 #define ACPI_DEVICE_SWNODE_EP(endpoint) \
412 (ACPI_DEVICE_SWNODE_PORT(endpoint) + 1)
415 * struct acpi_device_software_node_port - MIPI DisCo for Imaging CSI-2 port
416 * @port_name: Port name.
417 * @data_lanes: "data-lanes" property values.
418 * @lane_polarities: "lane-polarities" property values.
419 * @link_frequencies: "link_frequencies" property values.
420 * @port_nr: Port number.
421 * @crs_crs2_local: _CRS CSI2 record present (i.e. this is a transmitter one).
422 * @port_props: Port properties.
423 * @ep_props: Endpoint properties.
424 * @remote_ep: Reference to the remote endpoint.
426 struct acpi_device_software_node_port {
427 char port_name[ACPI_DEVICE_SWNODE_PORT_NAME_LENGTH + 1];
428 u32 data_lanes[ACPI_DEVICE_CSI2_DATA_LANES];
429 u32 lane_polarities[ACPI_DEVICE_CSI2_DATA_LANES + 1 /* clock lane */];
430 u64 link_frequencies[ACPI_DEVICE_CSI2_DATA_LANES];
431 unsigned int port_nr;
434 struct property_entry port_props[ACPI_DEVICE_SWNODE_PORT_NUM_ENTRIES];
435 struct property_entry ep_props[ACPI_DEVICE_SWNODE_EP_NUM_ENTRIES];
437 struct software_node_ref_args remote_ep[1];
441 * struct acpi_device_software_nodes - Software nodes for an ACPI device
442 * @dev_props: Device properties.
443 * @nodes: Software nodes for root as well as ports and endpoints.
444 * @nodeprts: Array of software node pointers, for (un)registering them.
445 * @ports: Information related to each port and endpoint within a port.
446 * @num_ports: The number of ports.
448 struct acpi_device_software_nodes {
449 struct property_entry dev_props[ACPI_DEVICE_SWNODE_DEV_NUM_ENTRIES];
450 struct software_node *nodes;
451 const struct software_node **nodeptrs;
452 struct acpi_device_software_node_port *ports;
453 unsigned int num_ports;
460 acpi_handle handle; /* no handle for fixed hardware */
461 struct fwnode_handle fwnode;
462 struct list_head wakeup_list;
463 struct list_head del_list;
464 struct acpi_device_status status;
465 struct acpi_device_flags flags;
466 struct acpi_device_pnp pnp;
467 struct acpi_device_power power;
468 struct acpi_device_wakeup wakeup;
469 struct acpi_device_perf performance;
470 struct acpi_device_dir dir;
471 struct acpi_device_data data;
472 struct acpi_scan_handler *handler;
473 struct acpi_hotplug_context *hp;
474 struct acpi_device_software_nodes *swnodes;
475 const struct acpi_gpio_mapping *driver_gpios;
478 unsigned int physical_node_count;
479 unsigned int dep_unmet;
480 struct list_head physical_node_list;
481 struct mutex physical_node_lock;
482 void (*remove)(struct acpi_device *);
485 /* Non-device subnode */
486 struct acpi_data_node {
489 struct fwnode_handle fwnode;
490 struct fwnode_handle *parent;
491 struct acpi_device_data data;
492 struct list_head sibling;
494 struct completion kobj_done;
497 extern const struct fwnode_operations acpi_device_fwnode_ops;
498 extern const struct fwnode_operations acpi_data_fwnode_ops;
499 extern const struct fwnode_operations acpi_static_fwnode_ops;
501 bool is_acpi_device_node(const struct fwnode_handle *fwnode);
502 bool is_acpi_data_node(const struct fwnode_handle *fwnode);
504 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
506 return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
509 #define to_acpi_device_node(__fwnode) \
511 typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
513 is_acpi_device_node(__to_acpi_device_node_fwnode) ? \
514 container_of(__to_acpi_device_node_fwnode, \
515 struct acpi_device, fwnode) : \
519 #define to_acpi_data_node(__fwnode) \
521 typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \
523 is_acpi_data_node(__to_acpi_data_node_fwnode) ? \
524 container_of(__to_acpi_data_node_fwnode, \
525 struct acpi_data_node, fwnode) : \
529 static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
531 return !IS_ERR_OR_NULL(fwnode) &&
532 fwnode->ops == &acpi_static_fwnode_ops;
535 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
538 return is_acpi_data_node(fwnode) ?
539 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
542 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
544 return &adev->fwnode;
547 static inline void *acpi_driver_data(struct acpi_device *d)
549 return d->driver_data;
552 #define to_acpi_device(d) container_of(d, struct acpi_device, dev)
553 #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
555 static inline struct acpi_device *acpi_dev_parent(struct acpi_device *adev)
557 if (adev->dev.parent)
558 return to_acpi_device(adev->dev.parent);
563 static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
565 *((u32 *)&adev->status) = sta;
568 static inline void acpi_set_hp_context(struct acpi_device *adev,
569 struct acpi_hotplug_context *hp)
575 void acpi_initialize_hp_context(struct acpi_device *adev,
576 struct acpi_hotplug_context *hp,
577 int (*notify)(struct acpi_device *, u32),
578 void (*uevent)(struct acpi_device *, u32));
580 /* acpi_device.dev.bus == &acpi_bus_type */
581 extern struct bus_type acpi_bus_type;
583 int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data);
584 int acpi_dev_for_each_child(struct acpi_device *adev,
585 int (*fn)(struct acpi_device *, void *), void *data);
586 int acpi_dev_for_each_child_reverse(struct acpi_device *adev,
587 int (*fn)(struct acpi_device *, void *),
595 struct acpi_bus_event {
596 struct list_head node;
597 acpi_device_class device_class;
603 extern struct kobject *acpi_kobj;
604 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
605 void acpi_bus_private_data_handler(acpi_handle, void *);
606 int acpi_bus_get_private_data(acpi_handle, void **);
607 int acpi_bus_attach_private_data(acpi_handle, void *);
608 void acpi_bus_detach_private_data(acpi_handle);
609 int acpi_dev_install_notify_handler(struct acpi_device *adev,
611 acpi_notify_handler handler, void *context);
612 void acpi_dev_remove_notify_handler(struct acpi_device *adev,
614 acpi_notify_handler handler);
615 extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
616 extern int register_acpi_notifier(struct notifier_block *);
617 extern int unregister_acpi_notifier(struct notifier_block *);
623 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
624 unsigned long long *sta);
625 int acpi_bus_get_status(struct acpi_device *device);
627 int acpi_bus_set_power(acpi_handle handle, int state);
628 const char *acpi_power_state_string(int state);
629 int acpi_device_set_power(struct acpi_device *device, int state);
630 int acpi_bus_init_power(struct acpi_device *device);
631 int acpi_device_fix_up_power(struct acpi_device *device);
632 void acpi_device_fix_up_power_extended(struct acpi_device *adev);
633 int acpi_bus_update_power(acpi_handle handle, int *state_p);
634 int acpi_device_update_power(struct acpi_device *device, int *state_p);
635 bool acpi_bus_power_manageable(acpi_handle handle);
636 void acpi_dev_power_up_children_with_adr(struct acpi_device *adev);
637 u8 acpi_dev_power_state_for_wake(struct acpi_device *adev);
638 int acpi_device_power_add_dependent(struct acpi_device *adev,
640 void acpi_device_power_remove_dependent(struct acpi_device *adev,
644 bool acpi_bus_can_wakeup(acpi_handle handle);
646 static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
649 void acpi_scan_lock_acquire(void);
650 void acpi_scan_lock_release(void);
651 void acpi_lock_hp_context(void);
652 void acpi_unlock_hp_context(void);
653 int acpi_scan_add_handler(struct acpi_scan_handler *handler);
654 int acpi_bus_register_driver(struct acpi_driver *driver);
655 void acpi_bus_unregister_driver(struct acpi_driver *driver);
656 int acpi_bus_scan(acpi_handle handle);
657 void acpi_bus_trim(struct acpi_device *start);
658 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
659 int acpi_match_device_ids(struct acpi_device *device,
660 const struct acpi_device_id *ids);
661 void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
662 char *modalias, size_t len);
664 static inline bool acpi_device_enumerated(struct acpi_device *adev)
666 return adev && adev->flags.initialized && adev->flags.visited;
670 * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
671 * @__acpi_driver: acpi_driver struct
673 * Helper macro for ACPI drivers which do not do anything special in module
674 * init/exit. This eliminates a lot of boilerplate. Each module may only
675 * use this macro once, and calling it replaces module_init() and module_exit()
677 #define module_acpi_driver(__acpi_driver) \
678 module_driver(__acpi_driver, acpi_bus_register_driver, \
679 acpi_bus_unregister_driver)
682 * Bind physical devices with ACPI devices
684 struct acpi_bus_type {
685 struct list_head list;
687 bool (*match)(struct device *dev);
688 struct acpi_device * (*find_companion)(struct device *);
689 void (*setup)(struct device *);
691 int register_acpi_bus_type(struct acpi_bus_type *);
692 int unregister_acpi_bus_type(struct acpi_bus_type *);
693 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
694 int acpi_unbind_one(struct device *dev);
696 enum acpi_bridge_type {
697 ACPI_BRIDGE_TYPE_PCIE = 1,
698 ACPI_BRIDGE_TYPE_CXL,
701 struct acpi_pci_root {
702 struct acpi_device * device;
706 struct resource secondary; /* downstream bus range */
708 u32 osc_support_set; /* _OSC state of support bits */
709 u32 osc_control_set; /* _OSC state of control bits */
710 u32 osc_ext_support_set; /* _OSC state of extended support bits */
711 u32 osc_ext_control_set; /* _OSC state of extended control bits */
712 phys_addr_t mcfg_addr;
717 bool acpi_dma_supported(const struct acpi_device *adev);
718 enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
719 int acpi_iommu_fwspec_init(struct device *dev, u32 id,
720 struct fwnode_handle *fwnode,
721 const struct iommu_ops *ops);
722 int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map);
723 int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr,
724 const u32 *input_id);
725 static inline int acpi_dma_configure(struct device *dev,
726 enum dev_dma_attr attr)
728 return acpi_dma_configure_id(dev, attr, NULL);
730 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
731 u64 address, bool check_children);
732 struct acpi_device *acpi_find_child_by_adr(struct acpi_device *adev,
733 acpi_bus_address adr);
734 int acpi_is_root_bridge(acpi_handle);
735 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
737 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
738 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
741 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status);
742 bool acpi_quirk_skip_acpi_ac_and_battery(void);
743 int acpi_install_cmos_rtc_space_handler(acpi_handle handle);
744 void acpi_remove_cmos_rtc_space_handler(acpi_handle handle);
746 static inline bool acpi_device_override_status(struct acpi_device *adev,
747 unsigned long long *status)
751 static inline bool acpi_quirk_skip_acpi_ac_and_battery(void)
755 static inline int acpi_install_cmos_rtc_space_handler(acpi_handle handle)
759 static inline void acpi_remove_cmos_rtc_space_handler(acpi_handle handle)
764 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
765 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev);
766 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip);
767 bool acpi_quirk_skip_gpio_event_handlers(void);
769 static inline bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
774 acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
779 static inline bool acpi_quirk_skip_gpio_event_handlers(void)
786 void acpi_pm_wakeup_event(struct device *dev);
787 acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
788 void (*func)(struct acpi_device_wakeup_context *context));
789 acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
790 bool acpi_pm_device_can_wakeup(struct device *dev);
791 int acpi_pm_device_sleep_state(struct device *, int *, int);
792 int acpi_pm_set_device_wakeup(struct device *dev, bool enable);
794 static inline void acpi_pm_wakeup_event(struct device *dev)
797 static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
799 void (*func)(struct acpi_device_wakeup_context *context))
803 static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
807 static inline bool acpi_pm_device_can_wakeup(struct device *dev)
811 static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
816 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
819 static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
825 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
826 bool acpi_sleep_state_supported(u8 sleep_state);
828 static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
831 #ifdef CONFIG_ACPI_SLEEP
832 u32 acpi_target_system_state(void);
834 static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
837 static inline bool acpi_device_power_manageable(struct acpi_device *adev)
839 return adev->flags.power_manageable;
842 static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
844 return adev->wakeup.flags.valid;
847 static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
849 return adev->power.states[ACPI_STATE_D3_COLD].flags.valid ||
850 ((acpi_gbl_FADT.header.revision < 6) &&
851 adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
854 bool acpi_dev_uid_match(struct acpi_device *adev, const char *uid2);
855 bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2);
856 int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer);
858 void acpi_dev_clear_dependencies(struct acpi_device *supplier);
859 bool acpi_dev_ready_for_enumeration(const struct acpi_device *device);
860 struct acpi_device *acpi_dev_get_next_consumer_dev(struct acpi_device *supplier,
861 struct acpi_device *start);
864 * for_each_acpi_consumer_dev - iterate over the consumer ACPI devices for a
866 * @supplier: Pointer to the supplier's ACPI device
867 * @consumer: Pointer to &struct acpi_device to hold the consumer, initially NULL
869 #define for_each_acpi_consumer_dev(supplier, consumer) \
870 for (consumer = acpi_dev_get_next_consumer_dev(supplier, NULL); \
872 consumer = acpi_dev_get_next_consumer_dev(supplier, consumer))
875 acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv);
877 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv);
880 * for_each_acpi_dev_match - iterate over ACPI devices that matching the criteria
881 * @adev: pointer to the matching ACPI device, NULL at the end of the loop
882 * @hid: Hardware ID of the device.
883 * @uid: Unique ID of the device, pass NULL to not check _UID
884 * @hrv: Hardware Revision of the device, pass -1 to not check _HRV
886 * The caller is responsible for invoking acpi_dev_put() on the returned device.
888 #define for_each_acpi_dev_match(adev, hid, uid, hrv) \
889 for (adev = acpi_dev_get_first_match_dev(hid, uid, hrv); \
891 adev = acpi_dev_get_next_match_dev(adev, hid, uid, hrv))
893 static inline struct acpi_device *acpi_dev_get(struct acpi_device *adev)
895 return adev ? to_acpi_device(get_device(&adev->dev)) : NULL;
898 static inline void acpi_dev_put(struct acpi_device *adev)
901 put_device(&adev->dev);
904 struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle);
905 struct acpi_device *acpi_get_acpi_dev(acpi_handle handle);
907 static inline void acpi_put_acpi_dev(struct acpi_device *adev)
911 #else /* CONFIG_ACPI */
913 static inline int register_acpi_bus_type(void *bus) { return 0; }
914 static inline int unregister_acpi_bus_type(void *bus) { return 0; }
916 #endif /* CONFIG_ACPI */
918 #endif /*__ACPI_BUS_H__*/