1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*/
#include "ior.h"
#include <subdev/timer.h>
static void
nv50_dac_clock(struct nvkm_ior *dac)
{
struct nvkm_device *device = dac->disp->engine.subdev.device;
const u32 doff = nv50_ior_base(dac);
nvkm_mask(device, 0x614280 + doff, 0x07070707, 0x00000000);
}
int
nv50_dac_sense(struct nvkm_ior *dac, u32 loadval)
{
struct nvkm_device *device = dac->disp->engine.subdev.device;
const u32 doff = nv50_ior_base(dac);
dac->func->power(dac, false, true, false, false, false);
nvkm_wr32(device, 0x61a00c + doff, 0x00100000 | loadval);
mdelay(9);
udelay(500);
loadval = nvkm_mask(device, 0x61a00c + doff, 0xffffffff, 0x00000000);
dac->func->power(dac, false, false, false, false, false);
if (!(loadval & 0x80000000))
return -ETIMEDOUT;
return (loadval & 0x38000000) >> 27;
}
static void
nv50_dac_power_wait(struct nvkm_device *device, const u32 doff)
{
nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
break;
);
}
void
nv50_dac_power(struct nvkm_ior *dac, bool normal, bool pu,
bool data, bool vsync, bool hsync)
{
struct nvkm_device *device = dac->disp->engine.subdev.device;
const u32 doff = nv50_ior_base(dac);
const u32 shift = normal ? 0 : 16;
const u32 state = 0x80000000 | (0x00000040 * ! pu |
0x00000010 * ! data |
0x00000004 * ! vsync |
0x00000001 * ! hsync) << shift;
const u32 field = 0xc0000000 | (0x00000055 << shift);
nv50_dac_power_wait(device, doff);
nvkm_mask(device, 0x61a004 + doff, field, state);
nv50_dac_power_wait(device, doff);
}
static void
nv50_dac_state(struct nvkm_ior *dac, struct nvkm_ior_state *state)
{
struct nvkm_device *device = dac->disp->engine.subdev.device;
const u32 coff = dac->id * 8 + (state == &dac->arm) * 4;
u32 ctrl = nvkm_rd32(device, 0x610b58 + coff);
state->proto_evo = (ctrl & 0x00000f00) >> 8;
switch (state->proto_evo) {
case 0: state->proto = CRT; break;
default:
state->proto = UNKNOWN;
break;
}
state->head = ctrl & 0x00000003;
}
static const struct nvkm_ior_func
nv50_dac = {
.state = nv50_dac_state,
.power = nv50_dac_power,
.sense = nv50_dac_sense,
.clock = nv50_dac_clock,
};
int
nv50_dac_new(struct nvkm_disp *disp, int id)
{
return nvkm_ior_new_(&nv50_dac, disp, DAC, id);
}
int
nv50_dac_cnt(struct nvkm_disp *disp, unsigned long *pmask)
{
struct nvkm_device *device = disp->engine.subdev.device;
*pmask = (nvkm_rd32(device, 0x610184) & 0x00700000) >> 20;
return 3;
}
|
