diff --git a/libhdmi/hdmi.cpp b/libhdmi/hdmi.cpp
new file mode 100644
index 0000000..9497934
--- /dev/null
+++ b/libhdmi/hdmi.cpp
@@ -0,0 +1,688 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2012-2014, 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.
+ */
+
+#define DEBUG 0
+#include <fcntl.h>
+#include <linux/msm_mdp.h>
+#include <video/msm_hdmi_modes.h>
+#include <linux/fb.h>
+#include <sys/ioctl.h>
+#include <cutils/properties.h>
+#include "hwc_utils.h"
+#include "hdmi.h"
+#include "overlayUtils.h"
+#include "overlay.h"
+#include "qd_utils.h"
+
+using namespace android;
+using namespace qdutils;
+
+namespace qhwc {
+#define UNKNOWN_STRING                  "unknown"
+#define SPD_NAME_LENGTH                 16
+
+/* The array gEDIDData contains a list of modes currently
+ * supported by HDMI and display, and modes that are not
+ * supported i.e. interlaced modes.
+
+ * In order to add support for a new mode, the mode must be
+ * appended to the end of the array.
+ *
+ * Each new entry must contain the following:
+ * -Mode: a video format defined in msm_hdmi_modes.h
+ * -Width: x resolution for the mode
+ * -Height: y resolution for the mode
+ * -FPS: the frame rate for the mode
+ * -Mode Order: the priority for the new mode that is used when determining
+ *  the best mode when the HDMI display is connected.
+ */
+EDIDData gEDIDData [] = {
+    EDIDData(HDMI_VFRMT_1440x480i60_4_3, 1440, 480, 60, 1),
+    EDIDData(HDMI_VFRMT_1440x480i60_16_9, 1440, 480, 60, 2),
+    EDIDData(HDMI_VFRMT_1440x576i50_4_3, 1440, 576, 50, 3),
+    EDIDData(HDMI_VFRMT_1440x576i50_16_9, 1440, 576, 50, 4),
+    EDIDData(HDMI_VFRMT_1920x1080i60_16_9, 1920, 1080, 60, 5),
+    EDIDData(HDMI_VFRMT_640x480p60_4_3, 640, 480, 60, 6),
+    EDIDData(HDMI_VFRMT_720x480p60_4_3, 720, 480, 60, 7),
+    EDIDData(HDMI_VFRMT_720x480p60_16_9, 720, 480, 60, 8),
+    EDIDData(HDMI_VFRMT_720x576p50_4_3, 720, 576, 50, 9),
+    EDIDData(HDMI_VFRMT_720x576p50_16_9, 720, 576, 50, 10),
+    EDIDData(HDMI_VFRMT_1024x768p60_4_3, 1024, 768, 60, 11),
+    EDIDData(HDMI_VFRMT_1280x1024p60_5_4, 1280, 1024, 60, 12),
+    EDIDData(HDMI_VFRMT_1280x720p50_16_9, 1280, 720, 50, 13),
+    EDIDData(HDMI_VFRMT_1280x720p60_16_9, 1280, 720, 60, 14),
+    EDIDData(HDMI_VFRMT_1920x1080p24_16_9, 1920, 1080, 24, 15),
+    EDIDData(HDMI_VFRMT_1920x1080p25_16_9, 1920, 1080, 25, 16),
+    EDIDData(HDMI_VFRMT_1920x1080p30_16_9, 1920, 1080, 30, 17),
+    EDIDData(HDMI_VFRMT_1920x1080p50_16_9, 1920, 1080, 50, 18),
+    EDIDData(HDMI_VFRMT_1920x1080p60_16_9, 1920, 1080, 60, 19),
+    EDIDData(HDMI_VFRMT_2560x1600p60_16_9, 2560, 1600, 60, 20),
+    EDIDData(HDMI_VFRMT_3840x2160p24_16_9, 3840, 2160, 24, 21),
+    EDIDData(HDMI_VFRMT_3840x2160p25_16_9, 3840, 2160, 25, 22),
+    EDIDData(HDMI_VFRMT_3840x2160p30_16_9, 3840, 2160, 30, 23),
+    EDIDData(HDMI_VFRMT_4096x2160p24_16_9, 4096, 2160, 24, 24),
+};
+
+// Number of modes in gEDIDData
+const int gEDIDCount = (sizeof(gEDIDData)/sizeof(gEDIDData)[0]);
+
+int HDMIDisplay::configure() {
+    if(!openFrameBuffer()) {
+        ALOGE("%s: Failed to open FB: %d", __FUNCTION__, mFbNum);
+        return -1;
+    }
+    readCEUnderscanInfo();
+    readResolution();
+    // TODO: Move this to activate
+    /* Used for changing the resolution
+     * getUserMode will get the preferred
+     * mode set thru adb shell */
+    mCurrentMode = getUserMode();
+    if (mCurrentMode == -1) {
+        //Get the best mode and set
+        mCurrentMode = getBestMode();
+    }
+    setAttributes();
+    // set system property
+    property_set("hw.hdmiON", "1");
+
+    // Read the system property to determine if downscale feature is enabled.
+    char value[PROPERTY_VALUE_MAX];
+    mMDPDownscaleEnabled = false;
+    if(property_get("sys.hwc.mdp_downscale_enabled", value, "false")
+            && !strcmp(value, "true")) {
+        mMDPDownscaleEnabled = true;
+    }
+    return 0;
+}
+
+void HDMIDisplay::getAttributes(uint32_t& width, uint32_t& height) {
+    uint32_t fps = 0;
+    getAttrForMode(width, height, fps);
+}
+
+int HDMIDisplay::teardown() {
+    closeFrameBuffer();
+    resetInfo();
+    // unset system property
+    property_set("hw.hdmiON", "0");
+    return 0;
+}
+
+HDMIDisplay::HDMIDisplay():mFd(-1),
+    mCurrentMode(-1), mModeCount(0), mPrimaryWidth(0), mPrimaryHeight(0),
+    mUnderscanSupported(false)
+{
+    memset(&mVInfo, 0, sizeof(mVInfo));
+
+    mDisplayId = HWC_DISPLAY_EXTERNAL;
+    // Update the display if HDMI is connected as primary
+    if (isHDMIPrimaryDisplay()) {
+        mDisplayId = HWC_DISPLAY_PRIMARY;
+    }
+
+    mFbNum = overlay::Overlay::getInstance()->getFbForDpy(mDisplayId);
+    // disable HPD at start, it will be enabled later
+    // when the display powers on
+    // This helps for framework reboot or adb shell stop/start
+    writeHPDOption(0);
+
+    // for HDMI - retreive all the modes supported by the driver
+    if(mFbNum != -1) {
+        supported_video_mode_lut =
+                        new msm_hdmi_mode_timing_info[HDMI_VFRMT_MAX];
+        // Populate the mode table for supported modes
+        MSM_HDMI_MODES_INIT_TIMINGS(supported_video_mode_lut);
+        MSM_HDMI_MODES_SET_SUPP_TIMINGS(supported_video_mode_lut,
+                                        MSM_HDMI_MODES_ALL);
+        // Update the Source Product Information
+        // Vendor Name
+        setSPDInfo("vendor_name", "ro.product.manufacturer");
+        // Product Description
+        setSPDInfo("product_description", "ro.product.name");
+    }
+
+    ALOGD_IF(DEBUG, "%s mDisplayId(%d) mFbNum(%d)",
+            __FUNCTION__, mDisplayId, mFbNum);
+}
+/* gets the product manufacturer and product name and writes it
+ * to the sysfs node, so that the driver can get that information
+ * Used to show QCOM 8974 instead of Input 1 for example
+ */
+void HDMIDisplay::setSPDInfo(const char* node, const char* property) {
+    char info[PROPERTY_VALUE_MAX];
+    ssize_t err = -1;
+    int spdFile = openDeviceNode(node, O_RDWR);
+    if (spdFile >= 0) {
+        memset(info, 0, sizeof(info));
+        property_get(property, info, UNKNOWN_STRING);
+        ALOGD_IF(DEBUG, "In %s: %s = %s",
+                __FUNCTION__, property, info);
+        if (strncmp(info, UNKNOWN_STRING, SPD_NAME_LENGTH)) {
+            err = write(spdFile, info, strlen(info));
+            if (err <= 0) {
+                ALOGE("%s: file write failed for '%s'"
+                      "err no = %d", __FUNCTION__, node, errno);
+            }
+        } else {
+            ALOGD_IF(DEBUG, "%s: property_get failed for SPD %s",
+                         __FUNCTION__, node);
+        }
+        close(spdFile);
+    }
+}
+
+void HDMIDisplay::setHPD(uint32_t value) {
+    ALOGD_IF(DEBUG,"HPD enabled=%d", value);
+    writeHPDOption(value);
+}
+
+void HDMIDisplay::setActionSafeDimension(int w, int h) {
+    ALOGD_IF(DEBUG,"ActionSafe w=%d h=%d", w, h);
+    char actionsafeWidth[PROPERTY_VALUE_MAX];
+    char actionsafeHeight[PROPERTY_VALUE_MAX];
+    snprintf(actionsafeWidth, sizeof(actionsafeWidth), "%d", w);
+    property_set("persist.sys.actionsafe.width", actionsafeWidth);
+    snprintf(actionsafeHeight, sizeof(actionsafeHeight), "%d", h);
+    property_set("persist.sys.actionsafe.height", actionsafeHeight);
+}
+
+int HDMIDisplay::getModeCount() const {
+    ALOGD_IF(DEBUG,"HPD mModeCount=%d", mModeCount);
+    return mModeCount;
+}
+
+void HDMIDisplay::readCEUnderscanInfo()
+{
+    int hdmiScanInfoFile = -1;
+    ssize_t len = -1;
+    char scanInfo[17];
+    char *ce_info_str = NULL;
+    char *save_ptr;
+    const char token[] = ", \n";
+    int ce_info = -1;
+
+    memset(scanInfo, 0, sizeof(scanInfo));
+    hdmiScanInfoFile = openDeviceNode("scan_info", O_RDONLY);
+    if (hdmiScanInfoFile < 0) {
+        return;
+    } else {
+        len = read(hdmiScanInfoFile, scanInfo, sizeof(scanInfo)-1);
+        ALOGD("%s: Scan Info string: %s length = %zu",
+                 __FUNCTION__, scanInfo, len);
+        if (len <= 0) {
+            close(hdmiScanInfoFile);
+            ALOGE("%s: Scan Info file empty", __FUNCTION__);
+            return;
+        }
+        scanInfo[len] = '\0';  /* null terminate the string */
+        close(hdmiScanInfoFile);
+    }
+
+    /*
+     * The scan_info contains the three fields
+     * PT - preferred video format
+     * IT - video format
+     * CE video format - containing the underscan support information
+     */
+
+    /* PT */
+    ce_info_str = strtok_r(scanInfo, token, &save_ptr);
+    if (ce_info_str) {
+        /* IT */
+        ce_info_str = strtok_r(NULL, token, &save_ptr);
+        if (ce_info_str) {
+            /* CE */
+            ce_info_str = strtok_r(NULL, token, &save_ptr);
+            if (ce_info_str)
+                ce_info = atoi(ce_info_str);
+        }
+    }
+
+    if (ce_info_str) {
+        // ce_info contains the underscan information
+        if (ce_info == HDMI_SCAN_ALWAYS_UNDERSCANED ||
+            ce_info == HDMI_SCAN_BOTH_SUPPORTED)
+            // if TV supported underscan, then driver will always underscan
+            // hence no need to apply action safe rectangle
+            mUnderscanSupported = true;
+    } else {
+        ALOGE("%s: scan_info string error", __FUNCTION__);
+    }
+
+    // Store underscan support info in a system property
+    const char* prop = (mUnderscanSupported) ? "1" : "0";
+    property_set("hw.underscan_supported", prop);
+    return;
+}
+
+HDMIDisplay::~HDMIDisplay()
+{
+    delete [] supported_video_mode_lut;
+    closeFrameBuffer();
+}
+
+/*
+ * sets the fb_var_screeninfo from the hdmi_mode_timing_info
+ */
+void setDisplayTiming(struct fb_var_screeninfo &info,
+                                const msm_hdmi_mode_timing_info* mode)
+{
+    info.reserved[0] = 0;
+    info.reserved[1] = 0;
+    info.reserved[2] = 0;
+#ifndef FB_METADATA_VIDEO_INFO_CODE_SUPPORT
+    info.reserved[3] = (info.reserved[3] & 0xFFFF) |
+              (mode->video_format << 16);
+#endif
+    info.xoffset = 0;
+    info.yoffset = 0;
+    info.xres = mode->active_h;
+    info.yres = mode->active_v;
+
+    info.pixclock = (mode->pixel_freq)*1000;
+    info.vmode = mode->interlaced ?
+                    FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
+
+    info.right_margin = mode->front_porch_h;
+    info.hsync_len = mode->pulse_width_h;
+    info.left_margin = mode->back_porch_h;
+    info.lower_margin = mode->front_porch_v;
+    info.vsync_len = mode->pulse_width_v;
+    info.upper_margin = mode->back_porch_v;
+}
+
+int HDMIDisplay::parseResolution(char* edidStr)
+{
+    char delim = ',';
+    int count = 0;
+    char *start, *end;
+    // EDIDs are string delimited by ','
+    // Ex: 16,4,5,3,32,34,1
+    // Parse this string to get mode(int)
+    start = (char*) edidStr;
+    end = &delim;
+    while(*end == delim) {
+        mEDIDModes[count] = (int) strtol(start, &end, 10);
+        start = end+1;
+        count++;
+    }
+    ALOGD_IF(DEBUG, "In %s: count = %d", __FUNCTION__, count);
+    for (int i = 0; i < count; i++)
+        ALOGD_IF(DEBUG, "Mode[%d] = %d", i, mEDIDModes[i]);
+    return count;
+}
+
+bool HDMIDisplay::readResolution()
+{
+    ssize_t len = -1;
+    char edidStr[128] = {'\0'};
+
+    int hdmiEDIDFile = openDeviceNode("edid_modes", O_RDONLY);
+    if (hdmiEDIDFile < 0) {
+        return false;
+    } else {
+        len = read(hdmiEDIDFile, edidStr, sizeof(edidStr)-1);
+        ALOGD_IF(DEBUG, "%s: EDID string: %s length = %zu",
+                 __FUNCTION__, edidStr, len);
+        if (len <= 0) {
+            ALOGE("%s: edid_modes file empty", __FUNCTION__);
+            edidStr[0] = '\0';
+        }
+        else {
+            while (len > 1 && isspace(edidStr[len-1])) {
+                --len;
+            }
+            edidStr[len] = '\0';
+        }
+        close(hdmiEDIDFile);
+    }
+    if(len > 0) {
+        // Get EDID modes from the EDID strings
+        mModeCount = parseResolution(edidStr);
+        ALOGD_IF(DEBUG, "%s: mModeCount = %d", __FUNCTION__,
+                 mModeCount);
+    }
+
+    return (len > 0);
+}
+
+bool HDMIDisplay::openFrameBuffer()
+{
+    if (mFd == -1) {
+        char strDevPath[MAX_SYSFS_FILE_PATH];
+        snprintf(strDevPath, MAX_SYSFS_FILE_PATH, "/dev/graphics/fb%d", mFbNum);
+        mFd = open(strDevPath, O_RDWR);
+        if (mFd < 0)
+            ALOGE("%s: %s is not available", __FUNCTION__, strDevPath);
+    }
+    return (mFd > 0);
+}
+
+bool HDMIDisplay::closeFrameBuffer()
+{
+    int ret = 0;
+    if(mFd >= 0) {
+        ret = close(mFd);
+        mFd = -1;
+    }
+    return (ret == 0);
+}
+
+// clears the vinfo, edid, best modes
+void HDMIDisplay::resetInfo()
+{
+    memset(&mVInfo, 0, sizeof(mVInfo));
+    memset(mEDIDModes, 0, sizeof(mEDIDModes));
+    mModeCount = 0;
+    mCurrentMode = -1;
+    mUnderscanSupported = false;
+    mXres = 0;
+    mYres = 0;
+    mVsyncPeriod = 0;
+    mMDPScalingMode = false;
+    // Reset the underscan supported system property
+    const char* prop = "0";
+    property_set("hw.underscan_supported", prop);
+}
+
+int HDMIDisplay::getModeOrder(int mode)
+{
+    for (int dataIndex = 0; dataIndex < gEDIDCount; dataIndex++) {
+        if (gEDIDData[dataIndex].mMode == mode) {
+            return gEDIDData[dataIndex].mModeOrder;
+        }
+    }
+    ALOGE("%s Mode not found: %d", __FUNCTION__, mode);
+    return -1;
+}
+
+/// Returns the user mode set(if any) using adb shell
+int HDMIDisplay::getUserMode() {
+    /* Based on the property set the resolution */
+    char property_value[PROPERTY_VALUE_MAX];
+    property_get("hw.hdmi.resolution", property_value, "-1");
+    int mode = atoi(property_value);
+    // We dont support interlaced modes
+    if(isValidMode(mode) && !isInterlacedMode(mode)) {
+        ALOGD_IF(DEBUG, "%s: setting the HDMI mode = %d", __FUNCTION__, mode);
+        return mode;
+    }
+    return -1;
+}
+
+// Get the best mode for the current HD TV
+int HDMIDisplay::getBestMode() {
+    int bestOrder = 0;
+    int bestMode = HDMI_VFRMT_640x480p60_4_3;
+    // for all the edid read, get the best mode
+    for(int i = 0; i < mModeCount; i++) {
+        int mode = mEDIDModes[i];
+        int order = getModeOrder(mode);
+        if (order > bestOrder) {
+            bestOrder = order;
+            bestMode = mode;
+        }
+    }
+    return bestMode;
+}
+
+inline bool HDMIDisplay::isValidMode(int ID)
+{
+    bool valid = false;
+    for (int i = 0; i < mModeCount; i++) {
+        if(ID == mEDIDModes[i]) {
+            valid = true;
+            break;
+        }
+    }
+    return valid;
+}
+
+// returns true if the mode(ID) is interlaced mode format
+bool HDMIDisplay::isInterlacedMode(int ID) {
+    bool interlaced = false;
+    switch(ID) {
+        case HDMI_VFRMT_1440x480i60_4_3:
+        case HDMI_VFRMT_1440x480i60_16_9:
+        case HDMI_VFRMT_1440x576i50_4_3:
+        case HDMI_VFRMT_1440x576i50_16_9:
+        case HDMI_VFRMT_1920x1080i60_16_9:
+            interlaced = true;
+            break;
+        default:
+            interlaced = false;
+            break;
+    }
+    return interlaced;
+}
+
+// Does a put_vscreen info on the HDMI interface which will update
+// the configuration (resolution, timing info) to match mCurrentMode
+void HDMIDisplay::activateDisplay()
+{
+    int ret = 0;
+    ret = ioctl(mFd, FBIOGET_VSCREENINFO, &mVInfo);
+    if(ret < 0) {
+        ALOGD("In %s: FBIOGET_VSCREENINFO failed Err Str = %s", __FUNCTION__,
+                                                            strerror(errno));
+    }
+    ALOGD_IF(DEBUG, "%s: GET Info<ID=%d %dx%d (%d,%d,%d),"
+            "(%d,%d,%d) %dMHz>", __FUNCTION__,
+            mVInfo.reserved[3], mVInfo.xres, mVInfo.yres,
+            mVInfo.right_margin, mVInfo.hsync_len, mVInfo.left_margin,
+            mVInfo.lower_margin, mVInfo.vsync_len, mVInfo.upper_margin,
+            mVInfo.pixclock/1000/1000);
+
+    const struct msm_hdmi_mode_timing_info *mode =
+            &supported_video_mode_lut[0];
+    for (unsigned int i = 0; i < HDMI_VFRMT_MAX; ++i) {
+        const struct msm_hdmi_mode_timing_info *cur =
+                &supported_video_mode_lut[i];
+        if (cur->video_format == (uint32_t)mCurrentMode) {
+            mode = cur;
+            break;
+        }
+    }
+    setDisplayTiming(mVInfo, mode);
+    ALOGD_IF(DEBUG, "%s: SET Info<ID=%d => Info<ID=%d %dx %d"
+            "(%d,%d,%d), (%d,%d,%d) %dMHz>", __FUNCTION__, mCurrentMode,
+            mode->video_format, mVInfo.xres, mVInfo.yres,
+            mVInfo.right_margin, mVInfo.hsync_len, mVInfo.left_margin,
+            mVInfo.lower_margin, mVInfo.vsync_len, mVInfo.upper_margin,
+            mVInfo.pixclock/1000/1000);
+#ifdef FB_METADATA_VIDEO_INFO_CODE_SUPPORT
+    struct msmfb_metadata metadata;
+    memset(&metadata, 0 , sizeof(metadata));
+    metadata.op = metadata_op_vic;
+    metadata.data.video_info_code = mode->video_format;
+    if (ioctl(mFd, MSMFB_METADATA_SET, &metadata) == -1) {
+        ALOGD("In %s: MSMFB_METADATA_SET failed Err Str = %s",
+                __FUNCTION__, strerror(errno));
+    }
+#endif
+    mVInfo.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_ALL | FB_ACTIVATE_FORCE;
+    ret = ioctl(mFd, FBIOPUT_VSCREENINFO, &mVInfo);
+    if(ret < 0) {
+        ALOGD("In %s: FBIOPUT_VSCREENINFO failed Err Str = %s",
+                __FUNCTION__, strerror(errno));
+    }
+}
+
+bool HDMIDisplay::writeHPDOption(int userOption) const
+{
+    bool ret = true;
+    if(mFbNum != -1) {
+        int hdmiHPDFile = openDeviceNode("hpd", O_RDWR);
+        if (hdmiHPDFile >= 0) {
+            ssize_t err = -1;
+            ALOGD_IF(DEBUG, "%s: option = %d",
+                    __FUNCTION__, userOption);
+            if(userOption)
+                err = write(hdmiHPDFile, "1", 2);
+            else
+                err = write(hdmiHPDFile, "0" , 2);
+            if (err <= 0) {
+                ALOGE("%s: file write failed 'hpd'", __FUNCTION__);
+                ret = false;
+            }
+            close(hdmiHPDFile);
+        }
+    }
+    return ret;
+}
+
+
+void HDMIDisplay::setAttributes() {
+    uint32_t fps = 0;
+    // Always set dpyAttr res to mVInfo res
+    getAttrForMode(mXres, mYres, fps);
+    mMDPScalingMode = false;
+
+    if(overlay::Overlay::getInstance()->isUIScalingOnExternalSupported()
+        && mMDPDownscaleEnabled) {
+        // if primary resolution is more than the hdmi resolution
+        // configure dpy attr to primary resolution and set MDP
+        // scaling mode
+        // Restrict this upto 1080p resolution max, if target does not
+        // support source split feature.
+        uint32_t primaryArea = mPrimaryWidth * mPrimaryHeight;
+        if(((primaryArea) > (mXres * mYres)) &&
+            (((primaryArea) <= SUPPORTED_DOWNSCALE_AREA) ||
+                qdutils::MDPVersion::getInstance().isSrcSplit())) {
+            // tmpW and tmpH will hold the primary dimensions before we
+            // update the aspect ratio if necessary.
+            int tmpW = mPrimaryWidth;
+            int tmpH = mPrimaryHeight;
+            // HDMI is always in landscape, so always assign the higher
+            // dimension to hdmi's xres
+            if(mPrimaryHeight > mPrimaryWidth) {
+                tmpW = mPrimaryHeight;
+                tmpH = mPrimaryWidth;
+            }
+            // The aspect ratios of the external and primary displays
+            // can be different. As a result, directly assigning primary
+            // resolution could lead to an incorrect final image.
+            // We get around this by calculating a new resolution by
+            // keeping aspect ratio intact.
+            hwc_rect r = {0, 0, 0, 0};
+            qdutils::getAspectRatioPosition(tmpW, tmpH, mXres, mYres, r);
+            uint32_t newExtW = r.right - r.left;
+            uint32_t newExtH = r.bottom - r.top;
+            uint32_t alignedExtW;
+            uint32_t alignedExtH;
+            // On 8994 and below targets MDP supports only 4X downscaling,
+            // Restricting selected external resolution to be exactly 4X
+            // greater resolution than actual external resolution
+            uint32_t maxMDPDownScale =
+                    qdutils::MDPVersion::getInstance().getMaxMDPDownscale();
+            if((mXres * mYres * maxMDPDownScale) < (newExtW * newExtH)) {
+                float upScaleFactor = (float)maxMDPDownScale / 2.0f;
+                newExtW = (int)((float)mXres * upScaleFactor);
+                newExtH = (int)((float)mYres * upScaleFactor);
+            }
+            // Align it down so that the new aligned resolution does not
+            // exceed the maxMDPDownscale factor
+            alignedExtW = overlay::utils::aligndown(newExtW, 4);
+            alignedExtH = overlay::utils::aligndown(newExtH, 4);
+            mXres = alignedExtW;
+            mYres = alignedExtH;
+            // Set External Display MDP Downscale mode indicator
+            mMDPScalingMode = true;
+        }
+    }
+    ALOGD_IF(DEBUG_MDPDOWNSCALE, "Selected external resolution [%d X %d] "
+            "maxMDPDownScale %d mMDPScalingMode %d srcSplitEnabled %d "
+            "MDPDownscale feature %d",
+            mXres, mYres,
+            qdutils::MDPVersion::getInstance().getMaxMDPDownscale(),
+            mMDPScalingMode, qdutils::MDPVersion::getInstance().isSrcSplit(),
+            mMDPDownscaleEnabled);
+    mVsyncPeriod = (int) 1000000000l / fps;
+    ALOGD_IF(DEBUG, "%s xres=%d, yres=%d", __FUNCTION__, mXres, mYres);
+}
+
+void HDMIDisplay::getAttrForMode(uint32_t& width, uint32_t& height,
+        uint32_t& fps) {
+    for (int dataIndex = 0; dataIndex < gEDIDCount; dataIndex++) {
+        if (gEDIDData[dataIndex].mMode == mCurrentMode) {
+            width = gEDIDData[dataIndex].mWidth;
+            height = gEDIDData[dataIndex].mHeight;
+            fps = gEDIDData[dataIndex].mFps;
+            return;
+        }
+    }
+    ALOGE("%s Unable to get attributes for %d", __FUNCTION__, mCurrentMode);
+}
+
+/* returns the fd related to the node specified*/
+int HDMIDisplay::openDeviceNode(const char* node, int fileMode) const {
+    char sysFsFilePath[MAX_SYSFS_FILE_PATH];
+    memset(sysFsFilePath, 0, sizeof(sysFsFilePath));
+    snprintf(sysFsFilePath , sizeof(sysFsFilePath),
+            "/sys/devices/virtual/graphics/fb%d/%s",
+            mFbNum, node);
+
+    int fd = open(sysFsFilePath, fileMode, 0);
+
+    if (fd < 0) {
+        ALOGE("%s: file '%s' not found : ret = %d err str: %s",
+                __FUNCTION__, sysFsFilePath, fd, strerror(errno));
+    }
+    return fd;
+}
+
+bool HDMIDisplay::isHDMIPrimaryDisplay() {
+    int hdmiNode = qdutils::getHDMINode();
+    return (hdmiNode == HWC_DISPLAY_PRIMARY);
+}
+
+int HDMIDisplay::getConnectedState() {
+    int ret = -1;
+    int mFbNum = qdutils::getHDMINode();
+    int connectedNode = openDeviceNode("connected", O_RDONLY);
+    if(connectedNode >= 0) {
+        char opStr[4];
+        ssize_t bytesRead = read(connectedNode, opStr, sizeof(opStr) - 1);
+        if(bytesRead > 0) {
+            opStr[bytesRead] = '\0';
+            ret = atoi(opStr);
+            ALOGD_IF(DEBUG, "%s: Read %d from connected", __FUNCTION__, ret);
+        } else if(bytesRead == 0) {
+            ALOGE("%s: HDMI connected node empty", __FUNCTION__);
+        } else {
+            ALOGE("%s: Read from HDMI connected node failed with error %s",
+                    __FUNCTION__, strerror(errno));
+        }
+        close(connectedNode);
+    } else {
+        ALOGD("%s: /sys/class/graphics/fb%d/connected could not be opened : %s",
+                __FUNCTION__, mFbNum, strerror(errno));
+    }
+    return ret;
+}
+
+void HDMIDisplay::setPrimaryAttributes(uint32_t primaryWidth,
+        uint32_t primaryHeight) {
+    mPrimaryHeight = primaryHeight;
+    mPrimaryWidth = primaryWidth;
+}
+
+};