/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, The Linux Foundation. All rights reserved.
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*
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* Not a Contribution, Apache license notifications and license are
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* retained for attribution purposes only.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HWC_EXTERNAL_DISPLAY_H
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#define HWC_EXTERNAL_DISPLAY_H
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#include <utils/threads.h>
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#include <linux/fb.h>
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struct hwc_context_t;
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namespace qhwc {
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//Type of scanning of EDID(Video Capability Data Block)
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enum external_scansupport_type {
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EXT_SCAN_NOT_SUPPORTED = 0,
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EXT_SCAN_ALWAYS_OVERSCANED = 1,
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EXT_SCAN_ALWAYS_UNDERSCANED = 2,
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EXT_SCAN_BOTH_SUPPORTED = 3
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};
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class ExternalDisplay
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{
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public:
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ExternalDisplay(hwc_context_t* ctx);
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~ExternalDisplay();
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int getModeCount() const;
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void getEDIDModes(int *out) const;
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bool isCEUnderscanSupported() { return mUnderscanSupported; }
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void setExternalDisplay(bool connected, int extFbNum = 0);
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bool isExternalConnected() { return mConnected;};
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void setExtDpyNum(int extDpyNum) { mExtDpyNum = extDpyNum;};
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void setHPD(uint32_t startEnd);
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void setEDIDMode(int resMode);
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void setActionSafeDimension(int w, int h);
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void processUEventOnline(const char *str);
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void processUEventOffline(const char *str);
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private:
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void readCEUnderscanInfo();
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bool readResolution();
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int parseResolution(char* edidStr, int* edidModes);
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void setResolution(int ID);
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bool openFrameBuffer(int fbNum);
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bool closeFrameBuffer();
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bool writeHPDOption(int userOption) const;
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bool isValidMode(int ID);
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void handleUEvent(char* str, int len);
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int getModeOrder(int mode);
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int getUserMode();
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int getBestMode();
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bool isInterlacedMode(int mode);
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void resetInfo();
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void setDpyHdmiAttr();
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void setDpyWfdAttr();
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void getAttrForMode(int& width, int& height, int& fps);
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void updateExtDispDevFbIndex();
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int configureHDMIDisplay();
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int configureWFDDisplay();
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int teardownHDMIDisplay();
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int teardownWFDDisplay();
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int getExtFbNum(int &fbNum);
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mutable android::Mutex mExtDispLock;
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int mFd;
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int mCurrentMode;
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int mConnected;
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int mConnectedFbNum;
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int mResolutionMode;
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char mEDIDs[128];
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int mEDIDModes[64];
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int mModeCount;
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bool mUnderscanSupported;
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hwc_context_t *mHwcContext;
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fb_var_screeninfo mVInfo;
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int mHdmiFbNum;
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int mWfdFbNum;
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int mExtDpyNum;
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};
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}; //qhwc
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// ---------------------------------------------------------------------------
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#endif //HWC_EXTERNAL_DISPLAY_H
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