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
25 #include <core/client.h>
26 #include <nvif/unpack.h>
27 #include <nvif/class.h>
28
29 #include <subdev/bios.h>
30 #include <subdev/bios/dcb.h>
31 #include <subdev/timer.h>
32
33 #include "nv50.h"
34
35 int
nv50_dac_power(NV50_DISP_MTHD_V1)36 nv50_dac_power(NV50_DISP_MTHD_V1)
37 {
38 const u32 doff = outp->or * 0x800;
39 union {
40 struct nv50_disp_dac_pwr_v0 v0;
41 } *args = data;
42 u32 stat;
43 int ret;
44
45 nv_ioctl(object, "disp dac pwr size %d\n", size);
46 if (nvif_unpack(args->v0, 0, 0, false)) {
47 nv_ioctl(object, "disp dac pwr vers %d state %d data %d "
48 "vsync %d hsync %d\n",
49 args->v0.version, args->v0.state, args->v0.data,
50 args->v0.vsync, args->v0.hsync);
51 stat = 0x00000040 * !args->v0.state;
52 stat |= 0x00000010 * !args->v0.data;
53 stat |= 0x00000004 * !args->v0.vsync;
54 stat |= 0x00000001 * !args->v0.hsync;
55 } else
56 return ret;
57
58 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
59 nv_mask(priv, 0x61a004 + doff, 0xc000007f, 0x80000000 | stat);
60 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
61 return 0;
62 }
63
64 int
nv50_dac_sense(NV50_DISP_MTHD_V1)65 nv50_dac_sense(NV50_DISP_MTHD_V1)
66 {
67 union {
68 struct nv50_disp_dac_load_v0 v0;
69 } *args = data;
70 const u32 doff = outp->or * 0x800;
71 u32 loadval;
72 int ret;
73
74 nv_ioctl(object, "disp dac load size %d\n", size);
75 if (nvif_unpack(args->v0, 0, 0, false)) {
76 nv_ioctl(object, "disp dac load vers %d data %08x\n",
77 args->v0.version, args->v0.data);
78 if (args->v0.data & 0xfff00000)
79 return -EINVAL;
80 loadval = args->v0.data;
81 } else
82 return ret;
83
84 nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000);
85 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
86
87 nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
88 mdelay(9);
89 udelay(500);
90 loadval = nv_mask(priv, 0x61a00c + doff, 0xffffffff, 0x00000000);
91
92 nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000);
93 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
94
95 nv_debug(priv, "DAC%d sense: 0x%08x\n", outp->or, loadval);
96 if (!(loadval & 0x80000000))
97 return -ETIMEDOUT;
98
99 args->v0.load = (loadval & 0x38000000) >> 27;
100 return 0;
101 }
102