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 }