| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * Copyright (C) 2012-2013, The Linux Foundation. All rights reserved. |
| * |
| * Not a Contribution, Apache license notifications and license are |
| * retained for attribution purposes only. |
| |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef HWC_EXTERNAL_DISPLAY_H |
| #define HWC_EXTERNAL_DISPLAY_H |
| |
| #include <linux/fb.h> |
| |
| struct hwc_context_t; |
| struct msm_hdmi_mode_timing_info; |
| |
| namespace qhwc { |
| |
| //Type of scanning of EDID(Video Capability Data Block) |
| enum external_scansupport_type { |
| EXT_SCAN_NOT_SUPPORTED = 0, |
| EXT_SCAN_ALWAYS_OVERSCANED = 1, |
| EXT_SCAN_ALWAYS_UNDERSCANED = 2, |
| EXT_SCAN_BOTH_SUPPORTED = 3 |
| }; |
| |
| class ExternalDisplay |
| { |
| public: |
| ExternalDisplay(hwc_context_t* ctx); |
| ~ExternalDisplay(); |
| void setHPD(uint32_t startEnd); |
| void setActionSafeDimension(int w, int h); |
| bool isCEUnderscanSupported() { return mUnderscanSupported; } |
| int configure(); |
| void getAttributes(int& width, int& height); |
| int teardown(); |
| bool isConnected() { |
| return mHwcContext->dpyAttr[HWC_DISPLAY_EXTERNAL].connected; |
| } |
| |
| private: |
| int getModeCount() const; |
| void getEDIDModes(int *out) const; |
| void setEDIDMode(int resMode); |
| void setSPDInfo(const char* node, const char* property); |
| void readCEUnderscanInfo(); |
| bool readResolution(); |
| int parseResolution(char* edidStr, int* edidModes); |
| void setResolution(int ID); |
| bool openFrameBuffer(); |
| bool closeFrameBuffer(); |
| bool writeHPDOption(int userOption) const; |
| bool isValidMode(int ID); |
| int getModeOrder(int mode); |
| int getUserMode(); |
| int getBestMode(); |
| bool isInterlacedMode(int mode); |
| void resetInfo(); |
| void setAttributes(); |
| void getAttrForMode(int& width, int& height, int& fps); |
| |
| int mFd; |
| int mFbNum; |
| int mCurrentMode; |
| int mEDIDModes[64]; |
| int mModeCount; |
| bool mUnderscanSupported; |
| hwc_context_t *mHwcContext; |
| fb_var_screeninfo mVInfo; |
| // Holds all the HDMI modes and timing info supported by driver |
| msm_hdmi_mode_timing_info* supported_video_mode_lut; |
| }; |
| |
| }; //qhwc |
| // --------------------------------------------------------------------------- |
| #endif //HWC_EXTERNAL_DISPLAY_H |