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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 | */ | |
8f0649b5 | 24 | #define nv04_disp_root(p) container_of((p), struct nv04_disp_root, object) |
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25 | #include "priv.h" |
26 | ||
27 | #include <core/client.h> | |
28 | ||
29 | #include <nvif/class.h> | |
7568b106 | 30 | #include <nvif/cl0046.h> |
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31 | #include <nvif/unpack.h> |
32 | ||
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33 | struct nv04_disp_root { |
34 | struct nvkm_object object; | |
35 | struct nvkm_disp *disp; | |
36 | }; | |
37 | ||
2a7909c0 | 38 | static int |
0ce41e3c | 39 | nv04_disp_scanoutpos(struct nv04_disp_root *root, |
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40 | void *data, u32 size, int head) |
41 | { | |
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42 | struct nvkm_device *device = root->disp->engine.subdev.device; |
43 | struct nvkm_object *object = &root->object; | |
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44 | const u32 hoff = head * 0x2000; |
45 | union { | |
46 | struct nv04_disp_scanoutpos_v0 v0; | |
47 | } *args = data; | |
48 | u32 line; | |
49 | int ret; | |
50 | ||
51 | nvif_ioctl(object, "disp scanoutpos size %d\n", size); | |
52 | if (nvif_unpack(args->v0, 0, 0, false)) { | |
53 | nvif_ioctl(object, "disp scanoutpos vers %d\n", | |
54 | args->v0.version); | |
55 | args->v0.vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0xffff; | |
56 | args->v0.vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0xffff; | |
57 | args->v0.vblanke = args->v0.vtotal - 1; | |
58 | ||
59 | args->v0.hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0xffff; | |
60 | args->v0.htotal = nvkm_rd32(device, 0x680824 + hoff) & 0xffff; | |
61 | args->v0.hblanke = args->v0.htotal - 1; | |
62 | ||
63 | /* | |
64 | * If output is vga instead of digital then vtotal/htotal is | |
65 | * invalid so we have to give up and trigger the timestamping | |
66 | * fallback in the drm core. | |
67 | */ | |
68 | if (!args->v0.vtotal || !args->v0.htotal) | |
69 | return -ENOTSUPP; | |
70 | ||
71 | args->v0.time[0] = ktime_to_ns(ktime_get()); | |
72 | line = nvkm_rd32(device, 0x600868 + hoff); | |
73 | args->v0.time[1] = ktime_to_ns(ktime_get()); | |
74 | args->v0.hline = (line & 0xffff0000) >> 16; | |
75 | args->v0.vline = (line & 0x0000ffff); | |
76 | } else | |
77 | return ret; | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | static int | |
83 | nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) | |
84 | { | |
0ce41e3c | 85 | struct nv04_disp_root *root = nv04_disp_root(object); |
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86 | union { |
87 | struct nv04_disp_mthd_v0 v0; | |
88 | } *args = data; | |
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89 | int head, ret; |
90 | ||
91 | nvif_ioctl(object, "disp mthd size %d\n", size); | |
92 | if (nvif_unpack(args->v0, 0, 0, true)) { | |
93 | nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n", | |
94 | args->v0.version, args->v0.method, args->v0.head); | |
95 | mthd = args->v0.method; | |
96 | head = args->v0.head; | |
97 | } else | |
98 | return ret; | |
99 | ||
100 | if (head < 0 || head >= 2) | |
101 | return -ENXIO; | |
102 | ||
103 | switch (mthd) { | |
104 | case NV04_DISP_SCANOUTPOS: | |
0ce41e3c | 105 | return nv04_disp_scanoutpos(root, data, size, head); |
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106 | default: |
107 | break; | |
108 | } | |
109 | ||
110 | return -EINVAL; | |
111 | } | |
112 | ||
354a2249 | 113 | static const struct nvkm_object_func |
0ce41e3c | 114 | nv04_disp_root = { |
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115 | .mthd = nv04_disp_mthd, |
116 | .ntfy = nvkm_disp_ntfy, | |
117 | }; | |
118 | ||
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119 | static int |
120 | nv04_disp_root_new(struct nvkm_disp *disp, const struct nvkm_oclass *oclass, | |
121 | void *data, u32 size, struct nvkm_object **pobject) | |
122 | { | |
123 | struct nv04_disp_root *root; | |
124 | ||
125 | if (!(root = kzalloc(sizeof(*root), GFP_KERNEL))) | |
126 | return -ENOMEM; | |
127 | root->disp = disp; | |
128 | *pobject = &root->object; | |
129 | ||
130 | nvkm_object_ctor(&nv04_disp_root, oclass, &root->object); | |
131 | return 0; | |
132 | } | |
133 | ||
134 | const struct nvkm_disp_oclass | |
135 | nv04_disp_root_oclass = { | |
136 | .base.oclass = NV04_DISP, | |
137 | .base.minver = -1, | |
138 | .base.maxver = -1, | |
139 | .ctor = nv04_disp_root_new, | |
2a7909c0 | 140 | }; |