Lines Matching +full:device +full:- +full:handle
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * acpi_bus.c - ACPI Bus Driver ($Revision: 80 $)
17 #include <linux/device.h>
50 pr_notice("%s detected - force copy of DSDT to local memory\n", id->ident); in set_copy_dsdt()
58 * Invoke DSDT corruption work-around on all Toshiba Satellite.
73 /* --------------------------------------------------------------------------
74 Device Management
75 -------------------------------------------------------------------------- */
77 acpi_status acpi_bus_get_status_handle(acpi_handle handle, in acpi_bus_get_status_handle() argument
82 status = acpi_evaluate_integer(handle, "_STA", NULL, sta); in acpi_bus_get_status_handle()
95 int acpi_bus_get_status(struct acpi_device *device) in acpi_bus_get_status() argument
100 if (acpi_device_override_status(device, &sta)) { in acpi_bus_get_status()
101 acpi_set_device_status(device, sta); in acpi_bus_get_status()
106 if (acpi_device_is_battery(device) && device->dep_unmet) { in acpi_bus_get_status()
107 acpi_set_device_status(device, 0); in acpi_bus_get_status()
111 status = acpi_bus_get_status_handle(device->handle, &sta); in acpi_bus_get_status()
113 return -ENODEV; in acpi_bus_get_status()
115 acpi_set_device_status(device, sta); in acpi_bus_get_status()
117 if (device->status.functional && !device->status.present) { in acpi_bus_get_status()
118 pr_debug("Device [%s] status [%08x]: functional but not present\n", in acpi_bus_get_status()
119 device->pnp.bus_id, (u32)sta); in acpi_bus_get_status()
122 pr_debug("Device [%s] status [%08x]\n", device->pnp.bus_id, (u32)sta); in acpi_bus_get_status()
127 void acpi_bus_private_data_handler(acpi_handle handle, in acpi_bus_private_data_handler() argument
134 int acpi_bus_attach_private_data(acpi_handle handle, void *data) in acpi_bus_attach_private_data() argument
138 status = acpi_attach_data(handle, in acpi_bus_attach_private_data()
141 acpi_handle_debug(handle, "Error attaching device data\n"); in acpi_bus_attach_private_data()
142 return -ENODEV; in acpi_bus_attach_private_data()
149 int acpi_bus_get_private_data(acpi_handle handle, void **data) in acpi_bus_get_private_data() argument
154 return -EINVAL; in acpi_bus_get_private_data()
156 status = acpi_get_data(handle, acpi_bus_private_data_handler, data); in acpi_bus_get_private_data()
158 acpi_handle_debug(handle, "No context for object\n"); in acpi_bus_get_private_data()
159 return -ENODEV; in acpi_bus_get_private_data()
166 void acpi_bus_detach_private_data(acpi_handle handle) in acpi_bus_detach_private_data() argument
168 acpi_detach_data(handle, acpi_bus_private_data_handler); in acpi_bus_detach_private_data()
172 static void acpi_print_osc_error(acpi_handle handle, in acpi_print_osc_error() argument
177 acpi_handle_debug(handle, "(%s): %s\n", context->uuid_str, error); in acpi_print_osc_error()
180 for (i = 0; i < context->cap.length; i += sizeof(u32)) in acpi_print_osc_error()
181 pr_debug(" %x", *((u32 *)(context->cap.pointer + i))); in acpi_print_osc_error()
186 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) in acpi_run_osc() argument
198 if (guid_parse(context->uuid_str, &guid)) in acpi_run_osc()
200 context->ret.length = ACPI_ALLOCATE_BUFFER; in acpi_run_osc()
201 context->ret.pointer = NULL; in acpi_run_osc()
210 in_params[1].integer.value = context->rev; in acpi_run_osc()
212 in_params[2].integer.value = context->cap.length/sizeof(u32); in acpi_run_osc()
214 in_params[3].buffer.length = context->cap.length; in acpi_run_osc()
215 in_params[3].buffer.pointer = context->cap.pointer; in acpi_run_osc()
217 status = acpi_evaluate_object(handle, "_OSC", &input, &output); in acpi_run_osc()
225 if (out_obj->type != ACPI_TYPE_BUFFER in acpi_run_osc()
226 || out_obj->buffer.length != context->cap.length) { in acpi_run_osc()
227 acpi_print_osc_error(handle, context, in acpi_run_osc()
233 errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0); in acpi_run_osc()
236 acpi_print_osc_error(handle, context, in acpi_run_osc()
239 acpi_print_osc_error(handle, context, in acpi_run_osc()
242 acpi_print_osc_error(handle, context, in acpi_run_osc()
245 if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD] in acpi_run_osc()
255 context->ret.length = out_obj->buffer.length; in acpi_run_osc()
256 context->ret.pointer = kmemdup(out_obj->buffer.pointer, in acpi_run_osc()
257 context->ret.length, GFP_KERNEL); in acpi_run_osc()
258 if (!context->ret.pointer) { in acpi_run_osc()
280 * ACPI 6.2 Section 6.2.11.2 'Platform-Wide OSPM Capabilities':
287 * - PCC or Functional Fixed Hardware address space if defined
288 * - SystemMemory address space (NULL register) if not defined
301 static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48";
311 acpi_handle handle; in acpi_bus_osc_negotiate_platform_control() local
349 if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) in acpi_bus_osc_negotiate_platform_control()
352 if (ACPI_FAILURE(acpi_run_osc(handle, &context))) in acpi_bus_osc_negotiate_platform_control()
369 if (ACPI_FAILURE(acpi_run_osc(handle, &context))) in acpi_bus_osc_negotiate_platform_control()
402 (bits & OSC_USB_USB3_TUNNELING) ? '+' : '-', in acpi_bus_decode_usb_osc()
403 (bits & OSC_USB_DP_TUNNELING) ? '+' : '-', in acpi_bus_decode_usb_osc()
404 (bits & OSC_USB_PCIE_TUNNELING) ? '+' : '-', in acpi_bus_decode_usb_osc()
405 (bits & OSC_USB_XDOMAIN) ? '+' : '-'); in acpi_bus_decode_usb_osc()
408 static u8 sb_usb_uuid_str[] = "23A0D13A-26AB-486C-9C5F-0FFA525A575A";
418 acpi_handle handle; in acpi_bus_osc_negotiate_usb_control() local
425 if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) in acpi_bus_osc_negotiate_usb_control()
435 status = acpi_run_osc(handle, &context); in acpi_bus_osc_negotiate_usb_control()
455 /* --------------------------------------------------------------------------
457 -------------------------------------------------------------------------- */
460 * acpi_bus_notify - Global system-level (0x00-0x7F) notifications handler
461 * @handle: Target ACPI object.
465 * This only handles notifications related to device hotplug.
467 static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) in acpi_bus_notify() argument
473 acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n"); in acpi_bus_notify()
477 acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n"); in acpi_bus_notify()
481 acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_WAKE event\n"); in acpi_bus_notify()
485 acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); in acpi_bus_notify()
489 acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK_LIGHT event\n"); in acpi_bus_notify()
494 acpi_handle_err(handle, "Device cannot be configured due " in acpi_bus_notify()
499 acpi_handle_err(handle, "Device cannot be configured due " in acpi_bus_notify()
504 acpi_handle_err(handle, "Device has suffered a power fault\n"); in acpi_bus_notify()
508 acpi_handle_debug(handle, "Unknown event type 0x%x\n", type); in acpi_bus_notify()
512 adev = acpi_get_acpi_dev(handle); in acpi_bus_notify()
519 acpi_evaluate_ost(handle, type, ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); in acpi_bus_notify()
522 static void acpi_notify_device(acpi_handle handle, u32 event, void *data) in acpi_notify_device() argument
524 struct acpi_device *device = data; in acpi_notify_device() local
525 struct acpi_driver *acpi_drv = to_acpi_driver(device->dev.driver); in acpi_notify_device()
527 acpi_drv->ops.notify(device, event); in acpi_notify_device()
530 static int acpi_device_install_notify_handler(struct acpi_device *device, in acpi_device_install_notify_handler() argument
533 u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? in acpi_device_install_notify_handler()
537 status = acpi_install_notify_handler(device->handle, type, in acpi_device_install_notify_handler()
538 acpi_notify_device, device); in acpi_device_install_notify_handler()
540 return -EINVAL; in acpi_device_install_notify_handler()
545 static void acpi_device_remove_notify_handler(struct acpi_device *device, in acpi_device_remove_notify_handler() argument
548 u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? in acpi_device_remove_notify_handler()
551 acpi_remove_notify_handler(device->handle, type, in acpi_device_remove_notify_handler()
563 status = acpi_install_notify_handler(adev->handle, handler_type, in acpi_dev_install_notify_handler()
566 return -ENODEV; in acpi_dev_install_notify_handler()
576 acpi_remove_notify_handler(adev->handle, handler_type, handler); in acpi_dev_remove_notify_handler()
581 /* Handle events targeting \_SB device (at present only graceful shutdown) */
606 static void acpi_sb_notify(acpi_handle handle, u32 event, void *data) in acpi_sb_notify() argument
614 pr_warn("event %x is not supported by \\_SB device\n", event); in acpi_sb_notify()
623 return -ENXIO; in acpi_setup_sb_notify_handler()
627 return -EINVAL; in acpi_setup_sb_notify_handler()
632 /* --------------------------------------------------------------------------
633 Device Matching
634 -------------------------------------------------------------------------- */
637 * acpi_get_first_physical_node - Get first physical node of an ACPI device
638 * @adev: ACPI device in question
640 * Return: First physical node of ACPI device @adev
642 struct device *acpi_get_first_physical_node(struct acpi_device *adev) in acpi_get_first_physical_node()
644 struct mutex *physical_node_lock = &adev->physical_node_lock; in acpi_get_first_physical_node()
645 struct device *phys_dev; in acpi_get_first_physical_node()
648 if (list_empty(&adev->physical_node_list)) { in acpi_get_first_physical_node()
653 node = list_first_entry(&adev->physical_node_list, in acpi_get_first_physical_node()
656 phys_dev = node->dev; in acpi_get_first_physical_node()
664 const struct device *dev) in acpi_primary_dev_companion()
666 const struct device *phys_dev = acpi_get_first_physical_node(adev); in acpi_primary_dev_companion()
672 * acpi_device_is_first_physical_node - Is given dev first physical node
673 * @adev: ACPI companion device
674 * @dev: Physical device to check
677 * the ACPI companion device. This distinction is needed in some cases
678 * where the same companion device is shared between many physical devices.
683 const struct device *dev) in acpi_device_is_first_physical_node()
689 * acpi_companion_match() - Can we match via ACPI companion device
690 * @dev: Device in question
692 * Check if the given device has an ACPI companion and if that companion has
693 * a valid list of PNP IDs, and if the device is the first (primary) physical
694 * device associated with it. Return the companion pointer if that's the case
700 * companion. A typical case is an MFD device where all the sub-devices share
702 * (first) physical device to be matched with the help of the companion's PNP
709 const struct acpi_device *acpi_companion_match(const struct device *dev) in acpi_companion_match()
717 if (list_empty(&adev->pnp.ids)) in acpi_companion_match()
724 * acpi_of_match_device - Match device object using the "compatible" property.
725 * @adev: ACPI device object to match.
726 * @of_match_table: List of device IDs to match against.
743 of_compatible = adev->data.of_compatible; in acpi_of_match_device()
747 if (of_compatible->type == ACPI_TYPE_PACKAGE) { in acpi_of_match_device()
748 nval = of_compatible->package.count; in acpi_of_match_device()
749 obj = of_compatible->package.elements; in acpi_of_match_device()
758 for (id = of_match_table; id->compatible[0]; id++) in acpi_of_match_device()
759 if (!strcasecmp(obj->string.pointer, id->compatible)) { in acpi_of_match_device()
776 of_compatible = adev->data.of_compatible; in acpi_of_modalias()
780 if (of_compatible->type == ACPI_TYPE_PACKAGE) in acpi_of_modalias()
781 obj = of_compatible->package.elements; in acpi_of_modalias()
785 str = obj->string.pointer; in acpi_of_modalias()
793 * acpi_set_modalias - Set modalias using "compatible" property or supplied ID
794 * @adev: ACPI device object to match
818 if (!id->cls) in __acpi_match_device_cls()
821 /* Apply class-code bitmask, before checking each class-code byte */ in __acpi_match_device_cls()
823 byte_shift = 8 * (3 - i); in __acpi_match_device_cls()
824 msk = (id->cls_msk >> byte_shift) & 0xFF; in __acpi_match_device_cls()
828 sprintf(buf, "%02x", (id->cls >> byte_shift) & msk); in __acpi_match_device_cls()
829 if (strncmp(buf, &hwid->id[(i - 1) * 2], 2)) in __acpi_match_device_cls()
835 static bool __acpi_match_device(const struct acpi_device *device, in __acpi_match_device() argument
845 * If the device is not present, it is unnecessary to load device in __acpi_match_device()
848 if (!device || !device->status.present) in __acpi_match_device()
851 list_for_each_entry(hwid, &device->pnp.ids, list) { in __acpi_match_device()
854 for (id = acpi_ids; id->id[0] || id->cls; id++) { in __acpi_match_device()
855 if (id->id[0] && !strcmp((char *)id->id, hwid->id)) in __acpi_match_device()
857 if (id->cls && __acpi_match_device_cls(id, hwid)) in __acpi_match_device()
866 if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)) in __acpi_match_device()
867 return acpi_of_match_device(device, of_ids, of_id); in __acpi_match_device()
878 * acpi_match_acpi_device - Match an ACPI device against a given list of ACPI IDs
880 * @adev: The ACPI device pointer to match.
882 * Match the ACPI device @adev against a given list of ACPI IDs @ids.
898 * acpi_match_device - Match a struct device against a given list of ACPI IDs
900 * @dev: The device structure to match.
902 * Check if @dev has a valid ACPI handle and if there is a struct acpi_device
903 * object for that handle and use that object to match against a given list of
904 * device IDs.
909 const struct device *dev) in acpi_match_device()
915 static const void *acpi_of_device_get_match_data(const struct device *dev) in acpi_of_device_get_match_data()
920 if (!acpi_of_match_device(adev, dev->driver->of_match_table, &match)) in acpi_of_device_get_match_data()
923 return match->data; in acpi_of_device_get_match_data()
926 const void *acpi_device_get_match_data(const struct device *dev) in acpi_device_get_match_data()
928 const struct acpi_device_id *acpi_ids = dev->driver->acpi_match_table; in acpi_device_get_match_data()
938 return (const void *)match->driver_data; in acpi_device_get_match_data()
942 int acpi_match_device_ids(struct acpi_device *device, in acpi_match_device_ids() argument
945 return __acpi_match_device(device, ids, NULL, NULL, NULL) ? 0 : -ENOENT; in acpi_match_device_ids()
949 bool acpi_driver_match_device(struct device *dev, in acpi_driver_match_device()
952 const struct acpi_device_id *acpi_ids = drv->acpi_match_table; in acpi_driver_match_device()
953 const struct of_device_id *of_ids = drv->of_match_table; in acpi_driver_match_device()
962 /* --------------------------------------------------------------------------
964 -------------------------------------------------------------------------- */
967 * acpi_bus_register_driver - register a driver with the ACPI bus
977 return -ENODEV; in acpi_bus_register_driver()
978 driver->drv.name = driver->name; in acpi_bus_register_driver()
979 driver->drv.bus = &acpi_bus_type; in acpi_bus_register_driver()
980 driver->drv.owner = driver->owner; in acpi_bus_register_driver()
982 return driver_register(&driver->drv); in acpi_bus_register_driver()
988 * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus
996 driver_unregister(&driver->drv); in acpi_bus_unregister_driver()
1001 /* --------------------------------------------------------------------------
1003 -------------------------------------------------------------------------- */
1005 static int acpi_bus_match(struct device *dev, struct device_driver *drv) in acpi_bus_match()
1010 return acpi_dev->flags.match_driver in acpi_bus_match()
1011 && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); in acpi_bus_match()
1014 static int acpi_device_uevent(const struct device *dev, struct kobj_uevent_env *env) in acpi_device_uevent()
1019 static int acpi_device_probe(struct device *dev) in acpi_device_probe()
1022 struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); in acpi_device_probe()
1025 if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev)) in acpi_device_probe()
1026 return -EINVAL; in acpi_device_probe()
1028 if (!acpi_drv->ops.add) in acpi_device_probe()
1029 return -ENOSYS; in acpi_device_probe()
1031 ret = acpi_drv->ops.add(acpi_dev); in acpi_device_probe()
1033 acpi_dev->driver_data = NULL; in acpi_device_probe()
1037 pr_debug("Driver [%s] successfully bound to device [%s]\n", in acpi_device_probe()
1038 acpi_drv->name, acpi_dev->pnp.bus_id); in acpi_device_probe()
1040 if (acpi_drv->ops.notify) { in acpi_device_probe()
1043 if (acpi_drv->ops.remove) in acpi_device_probe()
1044 acpi_drv->ops.remove(acpi_dev); in acpi_device_probe()
1046 acpi_dev->driver_data = NULL; in acpi_device_probe()
1051 pr_debug("Found driver [%s] for device [%s]\n", acpi_drv->name, in acpi_device_probe()
1052 acpi_dev->pnp.bus_id); in acpi_device_probe()
1058 static void acpi_device_remove(struct device *dev) in acpi_device_remove()
1061 struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); in acpi_device_remove()
1063 if (acpi_drv->ops.notify) in acpi_device_remove()
1066 if (acpi_drv->ops.remove) in acpi_device_remove()
1067 acpi_drv->ops.remove(acpi_dev); in acpi_device_remove()
1069 acpi_dev->driver_data = NULL; in acpi_device_remove()
1082 int acpi_bus_for_each_dev(int (*fn)(struct device *, void *), void *data) in acpi_bus_for_each_dev() argument
1093 static int acpi_dev_for_one_check(struct device *dev, void *context) in acpi_dev_for_one_check()
1097 if (dev->bus != &acpi_bus_type) in acpi_dev_for_one_check()
1100 return adwc->fn(to_acpi_device(dev), adwc->data); in acpi_dev_for_one_check()
1112 return device_for_each_child(&adev->dev, &adwc, acpi_dev_for_one_check); in acpi_dev_for_each_child()
1124 return device_for_each_child_reverse(&adev->dev, &adwc, acpi_dev_for_one_check); in acpi_dev_for_each_child_reverse()
1127 /* --------------------------------------------------------------------------
1129 -------------------------------------------------------------------------- */
1163 return -ENODEV; in acpi_bus_init_irq()
1171 return -ENODEV; in acpi_bus_init_irq()
1178 * acpi_early_init - Initialize ACPICA and populate the ACPI namespace.
1232 /* Set PIC-mode SCI trigger type */ in acpi_early_init()
1250 * acpi_subsystem_init - Finalize the early initialization of ACPI.
1303 * device is found in the namespace. in acpi_bus_init()
1361 * Register the for all standard device notifications. in acpi_bus_init()
1383 return -ENODEV; in acpi_bus_init()
1395 return -ENODEV; in acpi_init()