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      1 /*
      2 * Copyright (c) 2015 - 2016, 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 __HW_HDMI_H__
     26 #define __HW_HDMI_H__
     27 
     28 #include <video/msm_hdmi_modes.h>
     29 #include <map>
     30 #include <vector>
     31 
     32 #include "hw_device.h"
     33 
     34 namespace sdm {
     35 
     36 using std::vector;
     37 
     38 class HWHDMI : public HWDevice {
     39  public:
     40   static DisplayError Create(HWInterface **intf, HWInfoInterface *hw_info_intf,
     41                              BufferSyncHandler *buffer_sync_handler);
     42   static DisplayError Destroy(HWInterface *intf);
     43 
     44  protected:
     45   enum HWFramerateUpdate {
     46     // Switch framerate by switch to other standard modes though panel blank/unblank
     47     kModeSuspendResume,
     48     // Switch framerate by tuning pixel clock
     49     kModeClock,
     50     // Switch framerate by tuning vertical front porch
     51     kModeVFP,
     52     // Switch framerate by tuning horizontal front porch
     53     kModeHFP,
     54     kModeMAX
     55   };
     56 
     57   HWHDMI(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf);
     58   virtual DisplayError Init();
     59   virtual DisplayError Deinit();
     60   virtual DisplayError GetNumDisplayAttributes(uint32_t *count);
     61   // Requirement to call this only after the first config has been explicitly set by client
     62   virtual DisplayError GetActiveConfig(uint32_t *active_config);
     63   virtual DisplayError GetDisplayAttributes(uint32_t index,
     64                                             HWDisplayAttributes *display_attributes);
     65   virtual DisplayError GetHWScanInfo(HWScanInfo *scan_info);
     66   virtual DisplayError GetVideoFormat(uint32_t config_index, uint32_t *video_format);
     67   virtual DisplayError GetMaxCEAFormat(uint32_t *max_cea_format);
     68   virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
     69   virtual DisplayError SetDisplayAttributes(uint32_t index);
     70   virtual DisplayError GetConfigIndex(uint32_t mode, uint32_t *index);
     71   virtual DisplayError Validate(HWLayers *hw_layers);
     72   virtual DisplayError SetS3DMode(HWS3DMode s3d_mode);
     73   virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
     74 
     75  private:
     76   DisplayError ReadEDIDInfo();
     77   void ReadScanInfo();
     78   HWScanSupport MapHWScanSupport(uint32_t value);
     79   int OpenResolutionFile(int file_mode);
     80   void RequestNewPage(uint32_t page_number);
     81   DisplayError ReadTimingInfo();
     82   bool ReadResolutionFile(char *config_buffer);
     83   bool IsResolutionFilePresent();
     84   void SetSourceProductInformation(const char *node, const char *name);
     85   DisplayError GetDisplayS3DSupport(uint32_t num_modes,
     86                                     HWDisplayAttributes *attrib);
     87   bool IsSupportedS3DMode(HWS3DMode s3d_mode);
     88   void UpdateMixerAttributes();
     89 
     90   vector<uint32_t> hdmi_modes_;
     91   // Holds the hdmi timing information. Ex: resolution, fps etc.,
     92   vector<msm_hdmi_mode_timing_info> supported_video_modes_;
     93   HWScanInfo hw_scan_info_;
     94   uint32_t active_config_index_;
     95   std::map<HWS3DMode, msm_hdmi_s3d_mode> s3d_mode_sdm_to_mdp_;
     96   vector<HWS3DMode> supported_s3d_modes_;
     97   int active_mdp_s3d_mode_ = HDMI_S3D_NONE;
     98   uint32_t frame_rate_ = 0;
     99 };
    100 
    101 }  // namespace sdm
    102 
    103 #endif  // __HW_HDMI_H__
    104 
    105