1 /* 2 * Copyright (c) 2021-2023 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 "drm_encoder.h" 24 #include "hdi_device_common.h" 25 #include "hdi_shared_fd.h" 26 27 namespace OHOS { 28 namespace HDI { 29 namespace DISPLAY { 30 const std::string PROP_DPMS = "DPMS"; 31 const std::string PROP_CRTCID = "CRTC_ID"; 32 const std::string PROP_BRIGHTNESS = "brightness"; 33 class DrmDevice; 34 class DrmModeBlock; 35 36 class DrmMode { 37 public: DrmMode()38 DrmMode() {}; DrmMode(drmModeModeInfo & modeInfo,uint32_t id)39 DrmMode(drmModeModeInfo &modeInfo, uint32_t id) : mModeInfo(modeInfo), mId(id) {} ~DrmMode()40 virtual ~DrmMode() {}; GetModeInfoPtr()41 drmModeModeInfoPtr GetModeInfoPtr() 42 { 43 return &mModeInfo; 44 } 45 void ConvertToHdiMode(DisplayModeInfo &hdiMode); 46 47 private: 48 drmModeModeInfo mModeInfo = { 0 }; 49 int32_t mId = -1; 50 }; 51 52 class DrmModeBlock { 53 public: 54 explicit DrmModeBlock(DrmMode &mode); 55 virtual ~DrmModeBlock(); 56 int32_t Init(DrmMode &mode); GetBlockId()57 uint32_t GetBlockId() const 58 { 59 return mBlockId; 60 } 61 62 private: 63 uint32_t mBlockId = DRM_INVALID_ID; 64 }; 65 66 class DrmConnector { 67 public: 68 DrmConnector(drmModeConnector c, FdPtr &fd); ~DrmConnector()69 virtual ~DrmConnector() {}; GetId()70 uint32_t GetId() const 71 { 72 return mId; 73 } GetEncoderId()74 uint32_t GetEncoderId() const 75 { 76 return mEncoderId; 77 } SetEncoderId(uint32_t id)78 void SetEncoderId(uint32_t id) 79 { 80 mEncoderId = id; 81 } 82 void GetDisplayCap(DisplayCapability &cap); 83 int32_t Init(DrmDevice &drmDevice); 84 int32_t PickIdleCrtcId(IdMapPtr<DrmEncoder> &encoders, IdMapPtr<DrmCrtc> &crtcs, uint32_t &crtcId); 85 int32_t GetDisplaySupportedModes(uint32_t *num, DisplayModeInfo *modes); GetPreferenceId()86 int32_t GetPreferenceId() const 87 { 88 return mPreferenceId; 89 } GetPropCrtcId()90 uint32_t GetPropCrtcId() const 91 { 92 return mPropCrtcId; 93 } 94 int32_t TryPickEncoder(IdMapPtr<DrmEncoder> &encoders, uint32_t encoderId, IdMapPtr<DrmCrtc> &crtcs, 95 uint32_t &crtcId); 96 // update modes will reset the preference mode id and active mode id 97 int32_t UpdateModes(); 98 std::unique_ptr<DrmModeBlock> GetModeBlockFromId(int32_t id); 99 int32_t GetModeFromId(int32_t id, DrmMode &mode); GetDpmsState()100 uint64_t GetDpmsState() const 101 { 102 return mDpmsState; 103 } 104 int32_t SetDpmsState(uint64_t dmps); 105 bool IsConnected(); 106 bool HandleHotplug(IdMapPtr<DrmEncoder> &encoders, IdMapPtr<DrmCrtc> &crtcs, bool plugIn); 107 std::shared_ptr<DrmCrtc> UpdateCrtcId(IdMapPtr<DrmEncoder> &encoders, IdMapPtr<DrmCrtc> &crtcs, 108 bool plugIn, drmModeConnectorPtr c, int *crtc_id); 109 int32_t GetBrightness(uint32_t& level); 110 int32_t SetBrightness(uint32_t level); 111 112 private: 113 static void ConvertTypeToName(uint32_t type, std::string &name); 114 static void ConvertToHdiType(uint32_t type, InterfaceType &hdiType); 115 116 void InitModes(drmModeConnector c); 117 uint32_t mId; 118 InterfaceType mType; 119 uint32_t mPhyWidth; 120 uint32_t mPhyHeight; 121 uint32_t mSupportLayers = 0; 122 uint32_t mVirtualDispCount = 0; 123 bool mSupportWriteBack = false; 124 uint32_t mPropertyCount = 0; 125 uint32_t mEncoderId; 126 std::vector<uint32_t> mPossibleEncoders; 127 std::string mName; 128 drmModeConnection mConnectState; 129 uint32_t mPropDpmsId = DRM_INVALID_ID; 130 uint64_t mDpmsState = 0; 131 uint32_t mPropCrtcId = DRM_INVALID_ID; 132 uint32_t mPropBrightnessId = DRM_INVALID_ID; 133 uint32_t mBrightnessLevel = 0; 134 std::unordered_map<int32_t, DrmMode> mModes; 135 int32_t mPreferenceId = INVALID_MODE_ID; 136 137 FdPtr mDrmFdPtr; 138 }; 139 } // namespace OHOS 140 } // namespace HDI 141 } // namespace DISPLAY 142 #endif // DRM_CONNECTOR_H 143