1 /* 2 * Copyright (c) 2014 - 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 __STRATEGY_INTERFACE_H__ 26 #define __STRATEGY_INTERFACE_H__ 27 28 #include <core/sdm_types.h> 29 #include <core/display_interface.h> 30 #include "hw_info_types.h" 31 32 namespace sdm { 33 34 struct StrategyConstraints { 35 bool safe_mode = false; //!< In this mode, strategy manager chooses the composition strategy 36 //!< that requires minimum number of pipe for the current frame. i.e., 37 //!< video only composition, secure only composition or GPU composition 38 39 uint32_t max_layers = kMaxSDELayers; //!< Maximum number of layers that shall be programmed 40 //!< on hardware for the given layer stack. 41 }; 42 43 class StrategyInterface { 44 public: 45 virtual DisplayError Start(HWLayersInfo *hw_layers_info, uint32_t *max_attempts) = 0; 46 virtual DisplayError GetNextStrategy(StrategyConstraints *constraints) = 0; 47 virtual DisplayError Stop() = 0; 48 virtual DisplayError Reconfigure(const HWPanelInfo &hw_panel_info, 49 const HWResourceInfo &hw_res_info, 50 const HWMixerAttributes &mixer_attributes, 51 const DisplayConfigVariableInfo &fb_config) = 0; 52 virtual DisplayError SetCompositionState(LayerComposition composition_type, bool enable) = 0; 53 virtual DisplayError Purge() = 0; 54 virtual DisplayError SetIdleTimeoutMs(uint32_t active_ms) = 0; 55 ~StrategyInterface()56 virtual ~StrategyInterface() { } 57 }; 58 59 } // namespace sdm 60 61 #endif // __STRATEGY_INTERFACE_H__ 62 63