1 /* 2 * Copyright 2014 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "acpi.h" 25 26 #include <core/device.h> 27 28 #ifdef CONFIG_ACPI 29 static int 30 nvkm_acpi_ntfy(struct notifier_block *nb, unsigned long val, void *data) 31 { 32 struct nvkm_device *device = 33 container_of(nb, typeof(*device), acpi.nb); 34 struct acpi_bus_event *info = data; 35 36 if (!strcmp(info->device_class, "ac_adapter")) 37 nvkm_event_send(&device->event, 1, 0, NULL, 0); 38 39 return NOTIFY_DONE; 40 } 41 #endif 42 43 void 44 nvkm_acpi_fini(struct nvkm_device *device) 45 { 46 #ifdef CONFIG_ACPI 47 unregister_acpi_notifier(&device->acpi.nb); 48 #endif 49 } 50 51 void 52 nvkm_acpi_init(struct nvkm_device *device) 53 { 54 #ifdef CONFIG_ACPI 55 device->acpi.nb.notifier_call = nvkm_acpi_ntfy; 56 register_acpi_notifier(&device->acpi.nb); 57 #endif 58 } 59