2 * Copyright (C) 2015 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef ANDROID_DRM_H_
18 #define ANDROID_DRM_H_
24 #include "DrmConnector.h"
26 #include "DrmEncoder.h"
27 #include "DrmFbImporter.h"
28 #include "utils/UniqueFd.h"
38 ~DrmDevice() = default;
40 std::tuple<int, int> Init(const char *path, int num_displays);
46 const std::vector<std::unique_ptr<DrmConnector>> &connectors() const {
50 const std::vector<std::unique_ptr<DrmPlane>> &planes() const {
54 std::pair<uint32_t, uint32_t> min_resolution() const {
55 return min_resolution_;
58 std::pair<uint32_t, uint32_t> max_resolution() const {
59 return max_resolution_;
62 DrmConnector *GetConnectorForDisplay(int display) const;
63 DrmCrtc *GetCrtcForDisplay(int display) const;
65 std::string GetName() const;
67 const std::vector<std::unique_ptr<DrmCrtc>> &crtcs() const;
68 uint32_t next_mode_id();
70 auto RegisterUserPropertyBlob(void *data, size_t length) const
71 -> DrmModeUserPropertyBlobUnique;
73 bool HandlesDisplay(int display) const;
75 bool HasAddFb2ModifiersSupport() const {
76 return HasAddFb2ModifiersSupport_;
79 DrmFbImporter &GetDrmFbImporter() {
80 return *mDrmFbImporter;
83 static auto IsKMSDev(const char *path) -> bool;
85 auto FindCrtcById(uint32_t id) const -> DrmCrtc * {
86 for (const auto &crtc : crtcs_) {
87 if (crtc->GetId() == id) {
95 auto FindEncoderById(uint32_t id) const -> DrmEncoder * {
96 for (const auto &enc : encoders_) {
97 if (enc->GetId() == id) {
105 auto GetDisplayId(DrmConnector *conn) {
106 return connectors_to_display_id_.at(conn);
109 int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name,
110 DrmProperty *property) const;
113 int TryEncoderForDisplay(int display, DrmEncoder *enc);
115 int CreateDisplayPipe(DrmConnector *connector);
118 uint32_t mode_id_ = 0;
120 std::vector<std::unique_ptr<DrmConnector>> connectors_;
121 std::vector<std::unique_ptr<DrmConnector>> writeback_connectors_;
122 std::vector<std::unique_ptr<DrmEncoder>> encoders_;
123 std::vector<std::unique_ptr<DrmCrtc>> crtcs_;
124 std::vector<std::unique_ptr<DrmPlane>> planes_;
126 std::pair<uint32_t, uint32_t> min_resolution_;
127 std::pair<uint32_t, uint32_t> max_resolution_;
129 std::map<int /*display*/, DrmCrtc *> bound_crtcs_;
130 std::map<int /*display*/, DrmConnector *> bound_connectors_;
131 std::map<DrmConnector *, int /*display*/> connectors_to_display_id_;
132 std::map<DrmEncoder *, int /*display*/> encoders_to_display_id_;
133 std::map<DrmCrtc *, DrmEncoder *> bound_encoders_;
135 bool HasAddFb2ModifiersSupport_{};
137 std::shared_ptr<DrmDevice> self;
139 std::unique_ptr<DrmFbImporter> mDrmFbImporter;
141 } // namespace android
143 #endif // ANDROID_DRM_H_