-static void acpi_device_register(struct acpi_device *device,
- struct acpi_device *parent)
-{
- /*
- * Linkage
- * -------
- * Link this device to its parent and siblings.
- */
- INIT_LIST_HEAD(&device->children);
- INIT_LIST_HEAD(&device->node);
- INIT_LIST_HEAD(&device->g_list);
- INIT_LIST_HEAD(&device->wakeup_list);
-
- spin_lock(&acpi_device_lock);
- if (device->parent) {
- list_add_tail(&device->node, &device->parent->children);
- list_add_tail(&device->g_list, &device->parent->g_list);
- } else
- list_add_tail(&device->g_list, &acpi_device_list);
- if (device->wakeup.flags.valid)
- list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
- spin_unlock(&acpi_device_lock);
-
- strlcpy(device->kobj.name, device->pnp.bus_id, KOBJ_NAME_LEN);
- if (parent)
- device->kobj.parent = &parent->kobj;
- device->kobj.ktype = &ktype_acpi_ns;
- device->kobj.kset = &acpi_namespace_kset;
- kobject_register(&device->kobj);
- create_sysfs_device_files(device);
-}
-
-static void acpi_device_unregister(struct acpi_device *device, int type)
-{
- spin_lock(&acpi_device_lock);
- if (device->parent) {
- list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
-
- list_del(&device->wakeup_list);
-
- spin_unlock(&acpi_device_lock);
-
- acpi_detach_data(device->handle, acpi_bus_data_handler);
- remove_sysfs_device_files(device);
- kobject_unregister(&device->kobj);
-}
-
-void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
-{
-
- /* TBD */
-
- return;
-}
-
-static int acpi_bus_get_power_flags(struct acpi_device *device)
-{
- acpi_status status = 0;
- acpi_handle handle = NULL;
- u32 i = 0;
-
-
- /*
- * Power Management Flags
- */
- status = acpi_get_handle(device->handle, "_PSC", &handle);
- if (ACPI_SUCCESS(status))
- device->power.flags.explicit_get = 1;
- status = acpi_get_handle(device->handle, "_IRC", &handle);
- if (ACPI_SUCCESS(status))
- device->power.flags.inrush_current = 1;
-
- /*
- * Enumerate supported power management states
- */
- for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) {
- struct acpi_device_power_state *ps = &device->power.states[i];
- char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
-
- /* Evaluate "_PRx" to se if power resources are referenced */
- acpi_evaluate_reference(device->handle, object_name, NULL,
- &ps->resources);
- if (ps->resources.count) {
- device->power.flags.power_resources = 1;
- ps->flags.valid = 1;
- }
-
- /* Evaluate "_PSx" to see if we can do explicit sets */
- object_name[2] = 'S';
- status = acpi_get_handle(device->handle, object_name, &handle);
- if (ACPI_SUCCESS(status)) {
- ps->flags.explicit_set = 1;
- ps->flags.valid = 1;
- }
-
- /* State is valid if we have some power control */
- if (ps->resources.count || ps->flags.explicit_set)
- ps->flags.valid = 1;
-
- ps->power = -1; /* Unknown - driver assigned */
- ps->latency = -1; /* Unknown - driver assigned */
- }
-
- /* Set defaults for D0 and D3 states (always valid) */
- device->power.states[ACPI_STATE_D0].flags.valid = 1;
- device->power.states[ACPI_STATE_D0].power = 100;
- device->power.states[ACPI_STATE_D3].flags.valid = 1;
- device->power.states[ACPI_STATE_D3].power = 0;
-
- /* TBD: System wake support and resource requirements. */
-
- device->power.state = ACPI_STATE_UNKNOWN;
-
- return 0;
-}
-
-int acpi_match_ids(struct acpi_device *device, char *ids)
-{
- if (device->flags.hardware_id)
- if (strstr(ids, device->pnp.hardware_id))
- return 0;
-
- if (device->flags.compatible_ids) {
- struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
- int i;
-
- /* compare multiple _CID entries against driver ids */
- for (i = 0; i < cid_list->count; i++) {
- if (strstr(ids, cid_list->id[i].value))
- return 0;
- }
- }
- return -ENOENT;
-}
-
-static acpi_status
-acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
- union acpi_object *package)
-{
- int i = 0;
- union acpi_object *element = NULL;
-
- if (!device || !package || (package->package.count < 2))
- return AE_BAD_PARAMETER;
-
- element = &(package->package.elements[0]);
- if (!element)
- return AE_BAD_PARAMETER;
- if (element->type == ACPI_TYPE_PACKAGE) {
- if ((element->package.count < 2) ||
- (element->package.elements[0].type !=
- ACPI_TYPE_LOCAL_REFERENCE)
- || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
- return AE_BAD_DATA;
- device->wakeup.gpe_device =
- element->package.elements[0].reference.handle;
- device->wakeup.gpe_number =
- (u32) element->package.elements[1].integer.value;
- } else if (element->type == ACPI_TYPE_INTEGER) {
- device->wakeup.gpe_number = element->integer.value;
- } else
- return AE_BAD_DATA;
-
- element = &(package->package.elements[1]);
- if (element->type != ACPI_TYPE_INTEGER) {
- return AE_BAD_DATA;
- }
- device->wakeup.sleep_state = element->integer.value;
-
- if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
- return AE_NO_MEMORY;
- }
- device->wakeup.resources.count = package->package.count - 2;
- for (i = 0; i < device->wakeup.resources.count; i++) {
- element = &(package->package.elements[i + 2]);
- if (element->type != ACPI_TYPE_ANY) {
- return AE_BAD_DATA;
- }
-
- device->wakeup.resources.handles[i] = element->reference.handle;
- }
-
- return AE_OK;
-}
-
-static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
-{
- acpi_status status = 0;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *package = NULL;
-
-
- /* _PRW */
- status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
- goto end;
- }
-
- package = (union acpi_object *)buffer.pointer;
- status = acpi_bus_extract_wakeup_device_power_package(device, package);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
- goto end;
- }
-
- acpi_os_free(buffer.pointer);
-
- device->wakeup.flags.valid = 1;
- /* Power button, Lid switch always enable wakeup */
- if (!acpi_match_ids(device, "PNP0C0D,PNP0C0C,PNP0C0E"))
- device->wakeup.flags.run_wake = 1;
-
- end:
- if (ACPI_FAILURE(status))
- device->flags.wake_capable = 0;
- return 0;
-}
-