1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef DRM_CONNECTOR_H 17 #define DRM_CONNECTOR_H 18 #include <string> 19 #include <unordered_map> 20 #include <vector> 21 #include <xf86drm.h> 22 #include <xf86drmMode.h> 23 #include "display_type.h" 24 #include "drm_encoder.h" 25 #include "hdi_device_common.h" 26 #include "hdi_shared_fd.h" 27 28 namespace OHOS { 29 namespace HDI { 30 namespace DISPLAY { 31 const std::string PROP_DPMS = "DPMS"; 32 const std::string PROP_CRTCID = "CRTC_ID"; 33 const std::string PROP_BRIGHTNESS = "brightness"; 34 class DrmDevice; 35 class DrmModeBlock; 36 37 class DrmMode { 38 public: DrmMode()39 DrmMode() {}; DrmMode(drmModeModeInfo & modeInfo,uint32_t id)40 DrmMode(drmModeModeInfo &modeInfo, uint32_t id) : mModeInfo(modeInfo), mId(id) {} ~DrmMode()41 virtual ~DrmMode() {}; GetModeInfoPtr()42 drmModeModeInfoPtr GetModeInfoPtr() 43 { 44 return &mModeInfo; 45 } 46 void ConvertToHdiMode(DisplayModeInfo &hdiMode); 47 48 private: 49 drmModeModeInfo mModeInfo = { 0 }; 50 int32_t mId = -1; 51 }; 52 53 class DrmModeBlock { 54 public: 55 explicit DrmModeBlock(DrmMode &mode); 56 virtual ~DrmModeBlock(); 57 int32_t Init(DrmMode &mode); GetBlockId()58 uint32_t GetBlockId() const 59 { 60 return mBlockId; 61 } 62 63 private: 64 uint32_t mBlockId = DRM_INVALID_ID; 65 }; 66 67 class DrmConnector { 68 public: 69 DrmConnector(drmModeConnector c, FdPtr &fd); ~DrmConnector()70 virtual ~DrmConnector() {}; GetId()71 uint32_t GetId() const 72 { 73 return mId; 74 } GetEncoderId()75 uint32_t GetEncoderId() const 76 { 77 return mEncoderId; 78 } 79 void GetDisplayCap(DisplayCapability &cap); 80 int32_t Init(DrmDevice &drmDevice); 81 int32_t PickIdleCrtcId(IdMapPtr<DrmEncoder> &encoders, IdMapPtr<DrmCrtc> &crtcs, uint32_t &crtcId); 82 int32_t GetDisplaySupportedModes(uint32_t *num, DisplayModeInfo *modes); GetPreferenceId()83 int32_t GetPreferenceId() const 84 { 85 return mPreferenceId; 86 } GetPropCrtcId()87 uint32_t GetPropCrtcId() const 88 { 89 return mPropCrtcId; 90 } 91 int32_t TryPickEncoder(IdMapPtr<DrmEncoder> &encoders, uint32_t encoderId, IdMapPtr<DrmCrtc> &crtcs, 92 uint32_t &crtcId); 93 // update modes will reset the preference mode id and active mode id 94 int32_t UpdateModes(); 95 std::unique_ptr<DrmModeBlock> GetModeBlockFromId(int32_t id); 96 int32_t GetModeFromId(int32_t id, DrmMode &mode); GetDpmsState()97 uint64_t GetDpmsState() const 98 { 99 return mDpmsState; 100 } 101 int32_t SetDpmsState(uint64_t dmps); 102 bool IsConnected(); 103 bool HandleHotplug(); 104 105 int32_t GetBrightness(uint32_t& level); 106 int32_t SetBrightness(uint32_t level); 107 108 private: 109 static void ConvertTypeToName(uint32_t type, std::string &name); 110 static void ConvertToHdiType(uint32_t type, InterfaceType &hdiType); 111 112 void InitModes(drmModeConnector c); 113 uint32_t mId; 114 InterfaceType mType; 115 uint32_t mPhyWidth; 116 uint32_t mPhyHeight; 117 uint32_t mSupportLayers = 0; 118 uint32_t mVirtualDispCount = 0; 119 bool mSupportWriteBack = false; 120 uint32_t mPropertyCount = 0; 121 uint32_t mEncoderId; 122 std::vector<uint32_t> mPossibleEncoders; 123 std::string mName; 124 drmModeConnection mConnectState; 125 uint32_t mPropDpmsId = DRM_INVALID_ID; 126 uint64_t mDpmsState = 0; 127 uint32_t mPropCrtcId = DRM_INVALID_ID; 128 uint32_t mPropBrightnessId = DRM_INVALID_ID; 129 uint32_t mBrightnessLevel = 0; 130 std::unordered_map<int32_t, DrmMode> mModes; 131 int32_t mPreferenceId = INVALID_MODE_ID; 132 133 FdPtr mDrmFdPtr; 134 }; 135 } // namespace OHOS 136 } // namespace HDI 137 } // namespace DISPLAY 138 #endif // DRM_CONNECTOR_H 139