1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * Copyright (C) 2012-2013, The Linux Foundation. All rights reserved. 4 * 5 * Not a Contribution, Apache license notifications and license are 6 * retained for attribution purposes only. 7 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 #ifndef HWC_EXTERNAL_DISPLAY_H 22 #define HWC_EXTERNAL_DISPLAY_H 23 24 #include <utils/threads.h> 25 #include <linux/fb.h> 26 27 struct hwc_context_t; 28 struct msm_hdmi_mode_timing_info; 29 30 namespace qhwc { 31 32 //Type of scanning of EDID(Video Capability Data Block) 33 enum external_scansupport_type { 34 EXT_SCAN_NOT_SUPPORTED = 0, 35 EXT_SCAN_ALWAYS_OVERSCANED = 1, 36 EXT_SCAN_ALWAYS_UNDERSCANED = 2, 37 EXT_SCAN_BOTH_SUPPORTED = 3 38 }; 39 40 class ExternalDisplay 41 { 42 public: 43 ExternalDisplay(hwc_context_t* ctx); 44 ~ExternalDisplay(); 45 int getModeCount() const; 46 void getEDIDModes(int *out) const; 47 bool isCEUnderscanSupported() { return mUnderscanSupported; } 48 void setExternalDisplay(bool connected, int extFbNum = 0); 49 bool isExternalConnected() { return mConnected;}; 50 void setExtDpyNum(int extDpyNum) { mExtDpyNum = extDpyNum;}; 51 void setHPD(uint32_t startEnd); 52 void setEDIDMode(int resMode); 53 void setActionSafeDimension(int w, int h); 54 void processUEventOnline(const char *str); 55 void processUEventOffline(const char *str); 56 int getHDMIIndex() { return mHdmiFbNum; } 57 58 private: 59 void setSPDInfo(const char* node, const char* property); 60 void readCEUnderscanInfo(); 61 bool readResolution(); 62 int parseResolution(char* edidStr, int* edidModes); 63 void setResolution(int ID); 64 bool openFrameBuffer(int fbNum); 65 bool closeFrameBuffer(); 66 bool writeHPDOption(int userOption) const; 67 bool isValidMode(int ID); 68 void handleUEvent(char* str, int len); 69 int getModeOrder(int mode); 70 int getUserMode(); 71 int getBestMode(); 72 bool isInterlacedMode(int mode); 73 void resetInfo(); 74 void setDpyHdmiAttr(); 75 void setDpyWfdAttr(); 76 void getAttrForMode(int& width, int& height, int& fps); 77 void updateExtDispDevFbIndex(); 78 int configureHDMIDisplay(); 79 int configureWFDDisplay(); 80 int teardownHDMIDisplay(); 81 int teardownWFDDisplay(); 82 int getExtFbNum(int &fbNum); 83 84 mutable android::Mutex mExtDispLock; 85 int mFd; 86 int mCurrentMode; 87 int mConnected; 88 int mConnectedFbNum; 89 int mResolutionMode; 90 char mEDIDs[128]; 91 int mEDIDModes[64]; 92 int mModeCount; 93 bool mUnderscanSupported; 94 hwc_context_t *mHwcContext; 95 fb_var_screeninfo mVInfo; 96 int mHdmiFbNum; 97 int mWfdFbNum; 98 int mExtDpyNum; 99 // Holds all the HDMI modes and timing info supported by driver 100 msm_hdmi_mode_timing_info* supported_video_mode_lut; 101 }; 102 103 }; //qhwc 104 // --------------------------------------------------------------------------- 105 #endif //HWC_EXTERNAL_DISPLAY_H 106
