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diff --git a/msm8909/sdm/libs/core/display_hdmi.h b/msm8909/sdm/libs/core/display_hdmi.h
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+/*
+* Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification, are permitted
+* provided that the following conditions are met:
+*    * Redistributions of source code must retain the above copyright notice, this list of
+*      conditions and the following disclaimer.
+*    * Redistributions in binary form must reproduce the above copyright notice, this list of
+*      conditions and the following disclaimer in the documentation and/or other materials provided
+*      with the distribution.
+*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
+*      endorse or promote products derived from this software without specific prior written
+*      permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DISPLAY_HDMI_H__
+#define __DISPLAY_HDMI_H__
+
+#include <vector>
+#include <map>
+
+#include "display_base.h"
+#include "hw_events_interface.h"
+
+namespace sdm {
+
+class HWHDMIInterface;
+
+class DisplayHDMI : public DisplayBase, HWEventHandler {
+ public:
+  DisplayHDMI(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf,
+              BufferSyncHandler *buffer_sync_handler, BufferAllocator *buffer_allocator,
+              CompManager *comp_manager);
+  virtual DisplayError Init();
+  virtual DisplayError Prepare(LayerStack *layer_stack);
+  virtual DisplayError GetRefreshRateRange(uint32_t *min_refresh_rate, uint32_t *max_refresh_rate);
+  virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
+  virtual bool IsUnderscanSupported();
+  virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
+
+  // Implement the HWEventHandlers
+  virtual DisplayError VSync(int64_t timestamp);
+  virtual DisplayError Blank(bool blank) { return kErrorNone; }
+  virtual void IdleTimeout() { }
+  virtual void ThermalEvent(int64_t thermal_level) { }
+  virtual void IdlePowerCollapse() { }
+
+ private:
+  uint32_t GetBestConfig(HWS3DMode s3d_mode);
+  void GetScanSupport();
+  void SetS3DMode(LayerStack *layer_stack);
+
+  bool underscan_supported_ = false;
+  HWScanSupport scan_support_;
+  std::map<LayerBufferS3DFormat, HWS3DMode> s3d_format_to_mode_;
+  std::vector<HWEvent> event_list_ = { HWEvent::VSYNC, HWEvent::IDLE_NOTIFY, HWEvent::EXIT
+ };
+};
+
+}  // namespace sdm
+
+#endif  // __DISPLAY_HDMI_H__