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110 lines
3.6 KiB
110 lines
3.6 KiB
/* |
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* Copyright (C) 2010 The Android Open Source Project |
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* Copyright (C) 2012-2014, 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_HDMI_DISPLAY_H |
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#define HWC_HDMI_DISPLAY_H |
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#include <linux/fb.h> |
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struct msm_hdmi_mode_timing_info; |
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namespace qhwc { |
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//Type of scanning of EDID(Video Capability Data Block) |
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enum hdmi_scansupport_type { |
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HDMI_SCAN_NOT_SUPPORTED = 0, |
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HDMI_SCAN_ALWAYS_OVERSCANED = 1, |
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HDMI_SCAN_ALWAYS_UNDERSCANED = 2, |
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HDMI_SCAN_BOTH_SUPPORTED = 3 |
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}; |
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// Structure to store EDID related data |
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struct EDIDData { |
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int mMode, mWidth, mHeight, mFps; |
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// Predetermined ordering for each mode |
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int mModeOrder; |
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EDIDData(int mode, int width, int height, int fps, int order) |
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: mMode(mode), mWidth(width), mHeight(height), mFps(fps), mModeOrder(order) |
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{ } |
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}; |
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class HDMIDisplay |
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{ |
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public: |
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HDMIDisplay(); |
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~HDMIDisplay(); |
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void setHPD(uint32_t startEnd); |
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void setActionSafeDimension(int w, int h); |
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bool isCEUnderscanSupported() { return mUnderscanSupported; } |
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int configure(); |
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void getAttributes(uint32_t& width, uint32_t& height); |
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int teardown(); |
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uint32_t getWidth() const { return mXres; }; |
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uint32_t getHeight() const { return mYres; }; |
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uint32_t getVsyncPeriod() const { return mVsyncPeriod; }; |
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int getFd() const { return mFd; }; |
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bool getMDPScalingMode() const { return mMDPScalingMode; } |
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void activateDisplay(); |
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/* Returns true if HDMI is the PRIMARY display device*/ |
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bool isHDMIPrimaryDisplay(); |
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int getConnectedState(); |
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/* when HDMI is an EXTERNAL display, PRIMARY display attributes are needed |
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for scaling mode */ |
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void setPrimaryAttributes(uint32_t primaryWidth, uint32_t primaryHeight); |
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private: |
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int getModeCount() const; |
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void setSPDInfo(const char* node, const char* property); |
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void readCEUnderscanInfo(); |
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bool readResolution(); |
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int parseResolution(char* edidMode); |
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bool openFrameBuffer(); |
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bool closeFrameBuffer(); |
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bool writeHPDOption(int userOption) const; |
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bool isValidMode(int mode); |
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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 setAttributes(); |
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void getAttrForMode(uint32_t& width, uint32_t& height, uint32_t& fps); |
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int openDeviceNode(const char* node, int fileMode) const; |
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int mFd; |
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int mFbNum; |
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int mCurrentMode; |
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int mEDIDModes[64]; |
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int mModeCount; |
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fb_var_screeninfo mVInfo; |
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// Holds all the HDMI modes and timing info supported by driver |
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msm_hdmi_mode_timing_info* supported_video_mode_lut; |
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uint32_t mXres, mYres, mVsyncPeriod, mPrimaryWidth, mPrimaryHeight; |
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bool mMDPScalingMode; |
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bool mUnderscanSupported; |
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// Downscale feature switch, set via system property |
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// sys.hwc.mdp_downscale_enabled |
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bool mMDPDownscaleEnabled; |
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int mDisplayId; |
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}; |
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}; //qhwc |
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// --------------------------------------------------------------------------- |
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#endif //HWC_HDMI_DISPLAY_H
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