1 | /* |
2 | * Copyright 2013 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/client.h> |
26 | #include <nvif/driver.h> |
27 | #include <nvif/ioctl.h> |
28 | |
29 | #include <nvif/class.h> |
30 | #include <nvif/if0000.h> |
31 | |
32 | int |
33 | nvif_client_ioctl(struct nvif_client *client, void *data, u32 size) |
34 | { |
35 | return client->driver->ioctl(client->object.priv, data, size, NULL); |
36 | } |
37 | |
38 | int |
39 | nvif_client_suspend(struct nvif_client *client) |
40 | { |
41 | return client->driver->suspend(client->object.priv); |
42 | } |
43 | |
44 | int |
45 | nvif_client_resume(struct nvif_client *client) |
46 | { |
47 | return client->driver->resume(client->object.priv); |
48 | } |
49 | |
50 | void |
51 | nvif_client_dtor(struct nvif_client *client) |
52 | { |
53 | nvif_object_dtor(&client->object); |
54 | if (client->driver) { |
55 | if (client->driver->fini) |
56 | client->driver->fini(client->object.priv); |
57 | client->driver = NULL; |
58 | } |
59 | } |
60 | |
61 | int |
62 | nvif_client_ctor(struct nvif_client *parent, const char *name, u64 device, |
63 | struct nvif_client *client) |
64 | { |
65 | struct nvif_client_v0 args = { .device = device }; |
66 | struct { |
67 | struct nvif_ioctl_v0 ioctl; |
68 | struct nvif_ioctl_nop_v0 nop; |
69 | } nop = {}; |
70 | int ret; |
71 | |
72 | strscpy_pad(args.name, name, sizeof(args.name)); |
73 | ret = nvif_object_ctor(parent != client ? &parent->object : NULL, |
74 | name ? name : "nvifClient" , 0, |
75 | NVIF_CLASS_CLIENT, &args, sizeof(args), |
76 | &client->object); |
77 | if (ret) |
78 | return ret; |
79 | |
80 | client->object.client = client; |
81 | client->object.handle = ~0; |
82 | client->route = NVIF_IOCTL_V0_ROUTE_NVIF; |
83 | client->driver = parent->driver; |
84 | |
85 | if (ret == 0) { |
86 | ret = nvif_client_ioctl(client, &nop, sizeof(nop)); |
87 | client->version = nop.nop.version; |
88 | } |
89 | |
90 | if (ret) |
91 | nvif_client_dtor(client); |
92 | return ret; |
93 | } |
94 | |