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      1 /*
      2 * Copyright (c) 2017, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without
      5 * modification, are permitted provided that the following conditions are
      6 * met:
      7 *     * Redistributions of source code must retain the above copyright
      8 *       notice, this list of conditions and the following disclaimer.
      9 *     * Redistributions in binary form must reproduce the above
     10 *       copyright notice, this list of conditions and the following
     11 *       disclaimer in the documentation and/or other materials provided
     12 *       with the distribution.
     13 *     * Neither the name of The Linux Foundation nor the names of its
     14 *       contributors may be used to endorse or promote products derived
     15 *       from this software without specific prior written permission.
     16 *
     17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 */
     29 
     30 #ifndef __HW_INFO_DRM_H__
     31 #define __HW_INFO_DRM_H__
     32 
     33 #include <core/core_interface.h>
     34 #include <core/sdm_types.h>
     35 #include <drm_interface.h>
     36 #include <private/hw_info_types.h>
     37 #include <bitset>
     38 #include <vector>
     39 
     40 #include "hw_info_interface.h"
     41 
     42 namespace sdm {
     43 
     44 class HWInfoDRM: public HWInfoInterface {
     45  public:
     46   HWInfoDRM();
     47   virtual ~HWInfoDRM();
     48   virtual DisplayError GetHWResourceInfo(HWResourceInfo *hw_resource);
     49   virtual DisplayError GetFirstDisplayInterfaceType(HWDisplayInterfaceInfo *hw_disp_info);
     50 
     51  private:
     52   DisplayError GetHWRotatorInfo(HWResourceInfo *hw_resource);
     53   void GetSystemInfo(HWResourceInfo *hw_resource);
     54   void GetHWPlanesInfo(HWResourceInfo *hw_resource);
     55   void GetWBInfo(HWResourceInfo *hw_resource);
     56   DisplayError GetDynamicBWLimits(HWResourceInfo *hw_resource);
     57   void GetSDMFormat(uint32_t drm_format, uint64_t drm_format_modifier,
     58                     std::vector<LayerBufferFormat> *sdm_formats);
     59 
     60   sde_drm::DRMManagerInterface *drm_mgr_intf_ = {};
     61   bool default_mode_ = false;
     62 
     63   // TODO(user): Read Mdss version from the driver
     64   static const int kHWMdssVersion5 = 500;  // MDSS_V5
     65   static const int kMaxStringLength = 1024;
     66   static HWResourceInfo *hw_resource_;
     67 };
     68 
     69 }  // namespace sdm
     70 
     71 #endif  // __HW_INFO_DRM_H__
     72