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_INFO_H__ 26 #define __HW_INFO_H__ 27 28 #include <core/sdm_types.h> 29 #include <private/hw_info_types.h> 30 #include <linux/msm_mdp.h> 31 #include "hw_info_interface.h" 32 33 #ifndef MDP_IMGTYPE_END 34 #define MDP_IMGTYPE_LIMIT1 0x100 35 #endif 36 37 namespace sdm { 38 39 class HWInfo: public HWInfoInterface { 40 public: 41 virtual DisplayError GetHWResourceInfo(HWResourceInfo *hw_resource); 42 43 private: 44 virtual DisplayError GetHWRotatorInfo(HWResourceInfo *hw_resource); 45 virtual DisplayError GetMDSSRotatorInfo(HWResourceInfo *hw_resource); 46 virtual DisplayError GetV4L2RotatorInfo(HWResourceInfo *hw_resource); 47 48 // TODO(user): Read Mdss version from the driver 49 static const int kHWMdssVersion5 = 500; // MDSS_V5 50 static const int kMaxStringLength = 1024; 51 // MDP Capabilities are replicated across all frame buffer devices. 52 // However, we rely on reading the capabalities from fbO since this 53 // is guaranteed to be available. 54 static const int kHWCapabilitiesNode = 0; 55 static const uint8_t kDefaultFormatSupport[kHWSubBlockMax][BITS_TO_BYTES(MDP_IMGTYPE_LIMIT1)]; 56 static constexpr const char *kRotatorCapsPath = "/sys/devices/virtual/rotator/mdss_rotator/caps"; 57 58 static int ParseString(char *input, char *tokens[], const uint32_t max_token, const char *delim, 59 uint32_t *count); 60 DisplayError GetDynamicBWLimits(HWResourceInfo *hw_resource); 61 LayerBufferFormat GetSDMFormat(int mdp_format); 62 void InitSupportedFormatMap(HWResourceInfo *hw_resource); 63 void ParseFormats(char *tokens[], uint32_t token_count, HWSubBlockType sub_block_type, 64 HWResourceInfo *hw_resource); 65 void PopulateSupportedFormatMap(const uint8_t *format_supported, uint32_t format_count, 66 HWSubBlockType sub_blk_type, HWResourceInfo *hw_resource); 67 }; 68 69 } // namespace sdm 70 71 #endif // __HW_INFO_H__ 72 73