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      1 /*
      2 * Copyright (c) 2014 - 2017, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without modification, are permitted
      5 * provided that the following conditions are met:
      6 *    * Redistributions of source code must retain the above copyright notice, this list of
      7 *      conditions and the following disclaimer.
      8 *    * Redistributions in binary form must reproduce the above copyright notice, this list of
      9 *      conditions and the following disclaimer in the documentation and/or other materials provided
     10 *      with the distribution.
     11 *    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
     12 *      endorse or promote products derived from this software without specific prior written
     13 *      permission.
     14 *
     15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     17 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
     18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 */
     24 
     25 #ifndef __DISPLAY_HDMI_H__
     26 #define __DISPLAY_HDMI_H__
     27 
     28 #include <vector>
     29 #include <map>
     30 
     31 #include "display_base.h"
     32 #include "dump_impl.h"
     33 #include "hw_events_interface.h"
     34 
     35 namespace sdm {
     36 
     37 class HWHDMIInterface;
     38 
     39 class DisplayHDMI : public DisplayBase, HWEventHandler {
     40  public:
     41   DisplayHDMI(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf,
     42               BufferSyncHandler *buffer_sync_handler, CompManager *comp_manager);
     43   virtual DisplayError Init();
     44   virtual DisplayError Prepare(LayerStack *layer_stack);
     45   virtual DisplayError GetRefreshRateRange(uint32_t *min_refresh_rate, uint32_t *max_refresh_rate);
     46   virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
     47   virtual bool IsUnderscanSupported();
     48   virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
     49 
     50   // Implement the HWEventHandlers
     51   virtual DisplayError VSync(int64_t timestamp);
     52   virtual DisplayError Blank(bool blank) { return kErrorNone; }
     53   virtual void IdleTimeout() { }
     54   virtual void ThermalEvent(int64_t thermal_level) { }
     55   virtual void CECMessage(char *message);
     56   virtual void IdlePowerCollapse() { }
     57   virtual void PingPongTimeout() { }
     58 
     59  private:
     60   uint32_t GetBestConfig(HWS3DMode s3d_mode);
     61   void GetScanSupport();
     62   void SetS3DMode(LayerStack *layer_stack);
     63 
     64   bool underscan_supported_ = false;
     65   HWScanSupport scan_support_;
     66   std::map<LayerBufferS3DFormat, HWS3DMode> s3d_format_to_mode_;
     67   std::vector<HWEvent> event_list_ = { HWEvent::VSYNC, HWEvent::IDLE_NOTIFY, HWEvent::EXIT,
     68     HWEvent::CEC_READ_MESSAGE };
     69 };
     70 
     71 }  // namespace sdm
     72 
     73 #endif  // __DISPLAY_HDMI_H__
     74