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 
26 static const struct nvkm_disp_oclass *
27 nv04_disp_root(struct nvkm_disp *disp)
28 {
29 	return &nv04_disp_root_oclass;
30 }
31 
32 static void
33 nv04_disp_vblank_init(struct nvkm_disp *disp, int head)
34 {
35 	struct nvkm_device *device = disp->engine.subdev.device;
36 	nvkm_wr32(device, 0x600140 + (head * 0x2000) , 0x00000001);
37 }
38 
39 static void
40 nv04_disp_vblank_fini(struct nvkm_disp *disp, int head)
41 {
42 	struct nvkm_device *device = disp->engine.subdev.device;
43 	nvkm_wr32(device, 0x600140 + (head * 0x2000) , 0x00000000);
44 }
45 
46 static void
47 nv04_disp_intr(struct nvkm_disp *disp)
48 {
49 	struct nvkm_subdev *subdev = &disp->engine.subdev;
50 	struct nvkm_device *device = subdev->device;
51 	u32 crtc0 = nvkm_rd32(device, 0x600100);
52 	u32 crtc1 = nvkm_rd32(device, 0x602100);
53 	u32 pvideo;
54 
55 	if (crtc0 & 0x00000001) {
56 		nvkm_disp_vblank(disp, 0);
57 		nvkm_wr32(device, 0x600100, 0x00000001);
58 	}
59 
60 	if (crtc1 & 0x00000001) {
61 		nvkm_disp_vblank(disp, 1);
62 		nvkm_wr32(device, 0x602100, 0x00000001);
63 	}
64 
65 	if (device->chipset >= 0x10 && device->chipset <= 0x40) {
66 		pvideo = nvkm_rd32(device, 0x8100);
67 		if (pvideo & ~0x11)
68 			nvkm_info(subdev, "PVIDEO intr: %08x\n", pvideo);
69 		nvkm_wr32(device, 0x8100, pvideo);
70 	}
71 }
72 
73 static const struct nvkm_disp_func
74 nv04_disp = {
75 	.intr = nv04_disp_intr,
76 	.root = nv04_disp_root,
77 	.head.vblank_init = nv04_disp_vblank_init,
78 	.head.vblank_fini = nv04_disp_vblank_fini,
79 };
80 
81 int
82 nv04_disp_new(struct nvkm_device *device, int index, struct nvkm_disp **pdisp)
83 {
84 	return nvkm_disp_new_(&nv04_disp, device, index, 2, pdisp);
85 }
86