1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
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
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  */
16 
17 #ifndef ANDROID_DRM_H_
18 #define ANDROID_DRM_H_
19 
20 #include "drmcompositor.h"
21 #include "drmconnector.h"
22 #include "drmcrtc.h"
23 #include "drmencoder.h"
24 #include "drmeventlistener.h"
25 #include "drmplane.h"
26 
27 #include <stdint.h>
28 
29 namespace android {
30 
31 class DrmResources {
32  public:
33   DrmResources();
34   ~DrmResources();
35 
36   int Init();
37 
fd()38   int fd() const {
39     return fd_.get();
40   }
41 
connectors()42   const std::vector<std::unique_ptr<DrmConnector>> &connectors() const {
43     return connectors_;
44   }
45 
planes()46   const std::vector<std::unique_ptr<DrmPlane>> &planes() const {
47     return planes_;
48   }
49 
50   DrmConnector *GetConnectorForDisplay(int display) const;
51   DrmCrtc *GetCrtcForDisplay(int display) const;
52   DrmPlane *GetPlane(uint32_t id) const;
53   DrmCompositor *compositor();
54   DrmEventListener *event_listener();
55 
56   int GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
57                        DrmProperty *property);
58   int GetCrtcProperty(const DrmCrtc &crtc, const char *prop_name,
59                       DrmProperty *property);
60   int GetConnectorProperty(const DrmConnector &connector, const char *prop_name,
61                            DrmProperty *property);
62 
63   uint32_t next_mode_id();
64   int SetDisplayActiveMode(int display, const DrmMode &mode);
65   int SetDpmsMode(int display, uint64_t mode);
66 
67   int CreatePropertyBlob(void *data, size_t length, uint32_t *blob_id);
68   int DestroyPropertyBlob(uint32_t blob_id);
69 
70  private:
71   int TryEncoderForDisplay(int display, DrmEncoder *enc);
72   int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name,
73                   DrmProperty *property);
74 
75   int CreateDisplayPipe(DrmConnector *connector);
76 
77   UniqueFd fd_;
78   uint32_t mode_id_ = 0;
79 
80   std::vector<std::unique_ptr<DrmConnector>> connectors_;
81   std::vector<std::unique_ptr<DrmEncoder>> encoders_;
82   std::vector<std::unique_ptr<DrmCrtc>> crtcs_;
83   std::vector<std::unique_ptr<DrmPlane>> planes_;
84   DrmCompositor compositor_;
85   DrmEventListener event_listener_;
86 };
87 }
88 
89 #endif  // ANDROID_DRM_H_
90