1 /*
2 * Copyright 2012 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 "priv.h"
25 #include "head.h"
26
27 #include <core/client.h>
28
29 #include <nvif/cl0046.h>
30 #include <nvif/unpack.h>
31
32 int
nv04_disp_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)33 nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
34 {
35 struct nvkm_disp *disp = nvkm_disp(object->engine);
36 union {
37 struct nv04_disp_mthd_v0 v0;
38 } *args = data;
39 struct nvkm_head *head;
40 int id, ret = -ENOSYS;
41
42 nvif_ioctl(object, "disp mthd size %d\n", size);
43 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
44 nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
45 args->v0.version, args->v0.method, args->v0.head);
46 mthd = args->v0.method;
47 id = args->v0.head;
48 } else
49 return ret;
50
51 if (!(head = nvkm_head_find(disp, id)))
52 return -ENXIO;
53
54 switch (mthd) {
55 case NV04_DISP_SCANOUTPOS:
56 return nvkm_head_mthd_scanoutpos(object, head, data, size);
57 default:
58 break;
59 }
60
61 return -EINVAL;
62 }
63
