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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/drm/gpu/drm_display.h"
#include <xf86drmMode.h>
#include "ui/display/types/gamma_ramp_rgb_entry.h"
#include "ui/ozone/platform/drm/common/drm_util.h"
#include "ui/ozone/platform/drm/gpu/drm_device.h"
#include "ui/ozone/platform/drm/gpu/screen_manager.h"
namespace ui {
namespace {
const char kContentProtection[] = "Content Protection";
struct ContentProtectionMapping {
const char* name;
HDCPState state;
};
const ContentProtectionMapping kContentProtectionStates[] = {
{"Undesired", HDCP_STATE_UNDESIRED},
{"Desired", HDCP_STATE_DESIRED},
{"Enabled", HDCP_STATE_ENABLED}};
// Converts |state| to the DRM value associated with the it.
uint32_t GetContentProtectionValue(drmModePropertyRes* property,
HDCPState state) {
std::string name;
for (size_t i = 0; i < arraysize(kContentProtectionStates); ++i) {
if (kContentProtectionStates[i].state == state) {
name = kContentProtectionStates[i].name;
break;
}
}
for (int i = 0; i < property->count_enums; ++i)
if (name == property->enums[i].name)
return i;
NOTREACHED();
return 0;
}
std::string GetEnumNameForProperty(drmModeConnector* connector,
drmModePropertyRes* property) {
for (int prop_idx = 0; prop_idx < connector->count_props; ++prop_idx) {
if (connector->props[prop_idx] != property->prop_id)
continue;
for (int enum_idx = 0; enum_idx < property->count_enums; ++enum_idx) {
const drm_mode_property_enum& property_enum = property->enums[enum_idx];
if (property_enum.value == connector->prop_values[prop_idx])
return property_enum.name;
}
}
NOTREACHED();
return std::string();
}
gfx::Size GetDrmModeSize(const drmModeModeInfo& mode) {
return gfx::Size(mode.hdisplay, mode.vdisplay);
}
std::vector<drmModeModeInfo> GetDrmModeVector(drmModeConnector* connector) {
std::vector<drmModeModeInfo> modes;
for (int i = 0; i < connector->count_modes; ++i)
modes.push_back(connector->modes[i]);
return modes;
}
} // namespace
DrmDisplay::DrmDisplay(ScreenManager* screen_manager,
const scoped_refptr<DrmDevice>& drm)
: screen_manager_(screen_manager), display_id_(-1), drm_(drm) {
}
DrmDisplay::~DrmDisplay() {
}
DisplaySnapshot_Params DrmDisplay::Update(HardwareDisplayControllerInfo* info,
size_t display_index) {
DisplaySnapshot_Params params =
CreateDisplaySnapshotParams(info, drm_->get_fd(), display_index, origin_);
crtc_ = info->crtc()->crtc_id;
connector_ = info->connector()->connector_id;
display_id_ = params.display_id;
modes_ = GetDrmModeVector(info->connector());
return params;
}
bool DrmDisplay::Configure(const drmModeModeInfo* mode,
const gfx::Point& origin) {
VLOG(1) << "DRM configuring: device=" << drm_->device_path().value()
<< " crtc=" << crtc_ << " connector=" << connector_
<< " origin=" << origin.ToString()
<< " size=" << (mode ? GetDrmModeSize(*mode).ToString() : "0x0");
if (mode) {
if (!screen_manager_->ConfigureDisplayController(drm_, crtc_, connector_,
origin, *mode)) {
VLOG(1) << "Failed to configure: device=" << drm_->device_path().value()
<< " crtc=" << crtc_ << " connector=" << connector_;
return false;
}
} else {
if (!screen_manager_->DisableDisplayController(drm_, crtc_)) {
VLOG(1) << "Failed to disable device=" << drm_->device_path().value()
<< " crtc=" << crtc_;
return false;
}
}
origin_ = origin;
return true;
}
bool DrmDisplay::GetHDCPState(HDCPState* state) {
ScopedDrmConnectorPtr connector(drm_->GetConnector(connector_));
if (!connector) {
PLOG(ERROR) << "Failed to get connector " << connector_;
return false;
}
ScopedDrmPropertyPtr hdcp_property(
drm_->GetProperty(connector.get(), kContentProtection));
if (!hdcp_property) {
PLOG(ERROR) << "'" << kContentProtection << "' property doesn't exist.";
return false;
}
std::string name =
GetEnumNameForProperty(connector.get(), hdcp_property.get());
for (size_t i = 0; i < arraysize(kContentProtectionStates); ++i) {
if (name == kContentProtectionStates[i].name) {
*state = kContentProtectionStates[i].state;
VLOG(3) << "HDCP state: " << *state << " (" << name << ")";
return true;
}
}
LOG(ERROR) << "Unknown content protection value '" << name << "'";
return false;
}
bool DrmDisplay::SetHDCPState(HDCPState state) {
ScopedDrmConnectorPtr connector(drm_->GetConnector(connector_));
if (!connector) {
PLOG(ERROR) << "Failed to get connector " << connector_;
return false;
}
ScopedDrmPropertyPtr hdcp_property(
drm_->GetProperty(connector.get(), kContentProtection));
if (!hdcp_property) {
LOG(ERROR) << "'" << kContentProtection << "' property doesn't exist.";
return false;
}
return drm_->SetProperty(
connector_, hdcp_property->prop_id,
GetContentProtectionValue(hdcp_property.get(), state));
}
void DrmDisplay::SetGammaRamp(const std::vector<GammaRampRGBEntry>& lut) {
if (!drm_->SetGammaRamp(crtc_, lut)) {
LOG(ERROR) << "Failed to set gamma ramp for display: crtc_id = " << crtc_
<< " size = " << lut.size();
}
}
} // namespace ui
|
