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 "nv50.h"
25 #include "outp.h"
26
27 #include <core/client.h>
28 #include <subdev/timer.h>
29
30 #include <nvif/class.h>
31 #include <nvif/unpack.h>
32
33 int
nv50_dac_power(NV50_DISP_MTHD_V1)34 nv50_dac_power(NV50_DISP_MTHD_V1)
35 {
36 struct nvkm_device *device = disp->base.engine.subdev.device;
37 const u32 doff = outp->or * 0x800;
38 union {
39 struct nv50_disp_dac_pwr_v0 v0;
40 } *args = data;
41 u32 stat;
42 int ret;
43
44 nvif_ioctl(object, "disp dac pwr size %d\n", size);
45 if (nvif_unpack(args->v0, 0, 0, false)) {
46 nvif_ioctl(object, "disp dac pwr vers %d state %d data %d "
47 "vsync %d hsync %d\n",
48 args->v0.version, args->v0.state, args->v0.data,
49 args->v0.vsync, args->v0.hsync);
50 stat = 0x00000040 * !args->v0.state;
51 stat |= 0x00000010 * !args->v0.data;
52 stat |= 0x00000004 * !args->v0.vsync;
53 stat |= 0x00000001 * !args->v0.hsync;
54 } else
55 return ret;
56
57 nvkm_msec(device, 2000,
58 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
59 break;
60 );
61 nvkm_mask(device, 0x61a004 + doff, 0xc000007f, 0x80000000 | stat);
62 nvkm_msec(device, 2000,
63 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
64 break;
65 );
66 return 0;
67 }
68
69 int
nv50_dac_sense(NV50_DISP_MTHD_V1)70 nv50_dac_sense(NV50_DISP_MTHD_V1)
71 {
72 struct nvkm_subdev *subdev = &disp->base.engine.subdev;
73 struct nvkm_device *device = subdev->device;
74 union {
75 struct nv50_disp_dac_load_v0 v0;
76 } *args = data;
77 const u32 doff = outp->or * 0x800;
78 u32 loadval;
79 int ret;
80
81 nvif_ioctl(object, "disp dac load size %d\n", size);
82 if (nvif_unpack(args->v0, 0, 0, false)) {
83 nvif_ioctl(object, "disp dac load vers %d data %08x\n",
84 args->v0.version, args->v0.data);
85 if (args->v0.data & 0xfff00000)
86 return -EINVAL;
87 loadval = args->v0.data;
88 } else
89 return ret;
90
91 nvkm_mask(device, 0x61a004 + doff, 0x807f0000, 0x80150000);
92 nvkm_msec(device, 2000,
93 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
94 break;
95 );
96
97 nvkm_wr32(device, 0x61a00c + doff, 0x00100000 | loadval);
98 mdelay(9);
99 udelay(500);
100 loadval = nvkm_mask(device, 0x61a00c + doff, 0xffffffff, 0x00000000);
101
102 nvkm_mask(device, 0x61a004 + doff, 0x807f0000, 0x80550000);
103 nvkm_msec(device, 2000,
104 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
105 break;
106 );
107
108 nvkm_debug(subdev, "DAC%d sense: %08x\n", outp->or, loadval);
109 if (!(loadval & 0x80000000))
110 return -ETIMEDOUT;
111
112 args->v0.load = (loadval & 0x38000000) >> 27;
113 return 0;
114 }
115
116 static const struct nvkm_output_func
117 nv50_dac_output_func = {
118 };
119
120 int
nv50_dac_output_new(struct nvkm_disp * disp,int index,struct dcb_output * dcbE,struct nvkm_output ** poutp)121 nv50_dac_output_new(struct nvkm_disp *disp, int index,
122 struct dcb_output *dcbE, struct nvkm_output **poutp)
123 {
124 return nvkm_output_new_(&nv50_dac_output_func, disp,
125 index, dcbE, poutp);
126 }
127