1/*
2* Copyright (c) 2015 - 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 __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
34namespace sdm {
35
36using std::vector;
37
38class HWHDMI : public HWDevice {
39 public:
40  HWHDMI(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf);
41
42 protected:
43  enum HWFramerateUpdate {
44    // Switch framerate by switch to other standard modes though panel blank/unblank
45    kModeSuspendResume,
46    // Switch framerate by tuning pixel clock
47    kModeClock,
48    // Switch framerate by tuning vertical front porch
49    kModeVFP,
50    // Switch framerate by tuning horizontal front porch
51    kModeHFP,
52    // Switch framerate by tuning horizontal front porch and clock
53    kModeClockHFP,
54    // Switch framerate by tuning horizontal front porch and re-caculate clock
55    kModeHFPCalcClock,
56    kModeMAX
57  };
58
59  /**
60   * struct DynamicFPSData - defines dynamic fps related data
61   * @hor_front_porch: horizontal front porch
62   * @hor_back_porch: horizontal back porch
63   * @hor_pulse_width: horizontal pulse width
64   * @clk_rate_hz: panel clock rate in HZ
65   * @fps: frames per second
66   */
67  struct DynamicFPSData {
68    uint32_t hor_front_porch;
69    uint32_t hor_back_porch;
70    uint32_t hor_pulse_width;
71    uint32_t clk_rate_hz;
72    uint32_t fps;
73  };
74
75  virtual DisplayError Init();
76  virtual DisplayError GetNumDisplayAttributes(uint32_t *count);
77  // Requirement to call this only after the first config has been explicitly set by client
78  virtual DisplayError GetActiveConfig(uint32_t *active_config);
79  virtual DisplayError GetDisplayAttributes(uint32_t index,
80                                            HWDisplayAttributes *display_attributes);
81  virtual DisplayError GetHWScanInfo(HWScanInfo *scan_info);
82  virtual DisplayError GetVideoFormat(uint32_t config_index, uint32_t *video_format);
83  virtual DisplayError GetMaxCEAFormat(uint32_t *max_cea_format);
84  virtual DisplayError OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
85  virtual DisplayError SetDisplayAttributes(uint32_t index);
86  virtual DisplayError GetConfigIndex(uint32_t mode, uint32_t *index);
87  virtual DisplayError Validate(HWLayers *hw_layers);
88  virtual DisplayError Commit(HWLayers *hw_layers);
89  virtual DisplayError SetS3DMode(HWS3DMode s3d_mode);
90  virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
91
92 private:
93  DisplayError ReadEDIDInfo();
94  void ReadScanInfo();
95  HWScanSupport MapHWScanSupport(uint32_t value);
96  int OpenResolutionFile(int file_mode);
97  void RequestNewPage(uint32_t page_number);
98  DisplayError ReadTimingInfo();
99  bool ReadResolutionFile(char *config_buffer);
100  bool IsResolutionFilePresent();
101  void SetSourceProductInformation(const char *node, const char *name);
102  DisplayError GetDisplayS3DSupport(uint32_t index,
103                                    HWDisplayAttributes *attrib);
104  DisplayError GetPanelS3DMode();
105  bool IsSupportedS3DMode(HWS3DMode s3d_mode);
106  void UpdateMixerAttributes();
107  DisplayError UpdateHDRMetaData(HWLayers *hw_layers);
108
109  DisplayError GetDynamicFrameRateMode(uint32_t refresh_rate, uint32_t*mode,
110                                       DynamicFPSData *data, uint32_t *config_index);
111  static const int kThresholdRefreshRate = 1000;
112  vector<uint32_t> hdmi_modes_;
113  // Holds the hdmi timing information. Ex: resolution, fps etc.,
114  vector<msm_hdmi_mode_timing_info> supported_video_modes_;
115  HWScanInfo hw_scan_info_;
116  uint32_t active_config_index_;
117  std::map<HWS3DMode, msm_hdmi_s3d_mode> s3d_mode_sdm_to_mdp_;
118  vector<HWS3DMode> supported_s3d_modes_;
119  msm_hdmi_s3d_mode active_mdp_s3d_mode_ = HDMI_S3D_NONE;
120  uint32_t frame_rate_ = 0;
121};
122
123}  // namespace sdm
124
125#endif  // __HW_HDMI_H__
126
127