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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_PRIMARY_H__
     26 #define __HW_PRIMARY_H__
     27 
     28 #include <sys/poll.h>
     29 #include <vector>
     30 #include <string>
     31 
     32 #include "hw_device.h"
     33 
     34 namespace sdm {
     35 
     36 class HWPrimary : public HWDevice {
     37  public:
     38   HWPrimary(BufferSyncHandler *buffer_sync_handler, HWInfoInterface *hw_info_intf);
     39 
     40  protected:
     41   virtual DisplayError Init();
     42   virtual DisplayError GetNumDisplayAttributes(uint32_t *count);
     43   virtual DisplayError GetActiveConfig(uint32_t *active_config);
     44   virtual DisplayError GetDisplayAttributes(uint32_t index,
     45                                             HWDisplayAttributes *display_attributes);
     46   virtual DisplayError SetDisplayAttributes(uint32_t index);
     47   virtual DisplayError GetConfigIndex(uint32_t mode, uint32_t *index);
     48   virtual DisplayError PowerOff();
     49   virtual DisplayError Doze();
     50   virtual DisplayError DozeSuspend();
     51   virtual DisplayError Validate(HWLayers *hw_layers);
     52   virtual DisplayError Commit(HWLayers *hw_layers);
     53   virtual void SetIdleTimeoutMs(uint32_t timeout_ms);
     54   virtual DisplayError SetVSyncState(bool enable);
     55   virtual DisplayError SetDisplayMode(const HWDisplayMode hw_display_mode);
     56   virtual DisplayError SetRefreshRate(uint32_t refresh_rate);
     57   virtual DisplayError SetPanelBrightness(int level);
     58   virtual DisplayError CachePanelBrightness(int level);
     59   virtual DisplayError GetPPFeaturesVersion(PPFeatureVersion *vers);
     60   virtual DisplayError SetPPFeatures(PPFeaturesConfig *feature_list);
     61   virtual DisplayError GetPanelBrightness(int *level);
     62   virtual DisplayError SetAutoRefresh(bool enable);
     63   virtual DisplayError SetMixerAttributes(const HWMixerAttributes &mixer_attributes);
     64 
     65  private:
     66   // Panel modes for the MSMFB_LPM_ENABLE ioctl
     67   enum {
     68     kModeLPMVideo,
     69     kModeLPMCommand,
     70   };
     71 
     72   enum {
     73     kMaxSysfsCommandLength = 12,
     74   };
     75 
     76   static const int kHWMdssVersion3 = 3;
     77   DisplayError PopulateDisplayAttributes();
     78   void InitializeConfigs();
     79   bool IsResolutionSwitchEnabled() { return !display_configs_.empty(); }
     80   bool GetCurrentModeFromSysfs(size_t *curr_x_pixels, size_t *curr_y_pixels);
     81   void UpdateMixerAttributes();
     82   void SetAVRFlags(const HWAVRInfo &hw_avr_info, uint32_t *avr_flags);
     83 
     84   std::vector<DisplayConfigVariableInfo> display_configs_;
     85   std::vector<std::string> display_config_strings_;
     86   uint32_t active_config_index_ = 0;
     87   const char *kBrightnessNode = "/sys/class/leds/lcd-backlight/brightness";
     88   const char *kAutoRefreshNode = "/sys/devices/virtual/graphics/fb0/msm_cmd_autorefresh_en";
     89   bool auto_refresh_ = false;
     90   bool avr_prop_disabled_ = false;
     91 };
     92 
     93 }  // namespace sdm
     94 
     95 #endif  // __HW_PRIMARY_H__
     96 
     97