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 <bskeggs@redhat.com>
23 */
24
25 #include <nvif/device.h>
26
27 void
nvif_device_fini(struct nvif_device * device)28 nvif_device_fini(struct nvif_device *device)
29 {
30 nvif_object_fini(&device->base);
31 }
32
33 int
nvif_device_init(struct nvif_object * parent,void (* dtor)(struct nvif_device *),u32 handle,u32 oclass,void * data,u32 size,struct nvif_device * device)34 nvif_device_init(struct nvif_object *parent, void (*dtor)(struct nvif_device *),
35 u32 handle, u32 oclass, void *data, u32 size,
36 struct nvif_device *device)
37 {
38 int ret = nvif_object_init(parent, (void *)dtor, handle, oclass,
39 data, size, &device->base);
40 if (ret == 0) {
41 device->object = &device->base;
42 device->info.version = 0;
43 ret = nvif_object_mthd(&device->base, NV_DEVICE_V0_INFO,
44 &device->info, sizeof(device->info));
45 }
46 return ret;
47 }
48
49 static void
nvif_device_del(struct nvif_device * device)50 nvif_device_del(struct nvif_device *device)
51 {
52 nvif_device_fini(device);
53 kfree(device);
54 }
55
56 int
nvif_device_new(struct nvif_object * parent,u32 handle,u32 oclass,void * data,u32 size,struct nvif_device ** pdevice)57 nvif_device_new(struct nvif_object *parent, u32 handle, u32 oclass,
58 void *data, u32 size, struct nvif_device **pdevice)
59 {
60 struct nvif_device *device = kzalloc(sizeof(*device), GFP_KERNEL);
61 if (device) {
62 int ret = nvif_device_init(parent, nvif_device_del, handle,
63 oclass, data, size, device);
64 if (ret) {
65 kfree(device);
66 device = NULL;
67 }
68 *pdevice = device;
69 return ret;
70 }
71 return -ENOMEM;
72 }
73
74 void
nvif_device_ref(struct nvif_device * device,struct nvif_device ** pdevice)75 nvif_device_ref(struct nvif_device *device, struct nvif_device **pdevice)
76 {
77 nvif_object_ref(&device->base, (struct nvif_object **)pdevice);
78 }
79