1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef HARDWARE_GOOGLE_LIGHT_V1_0_LIGHT_H 17 #define HARDWARE_GOOGLE_LIGHT_V1_0_LIGHT_H 18 19 #include <hidl/Status.h> 20 #include <string> 21 22 #include <hidl/MQDescriptor.h> 23 #include <hardware/google/light/1.0/ILight.h> 24 #include "Light.h" 25 26 namespace hardware { 27 namespace google { 28 namespace light { 29 namespace V1_0 { 30 namespace implementation { 31 32 using ::android::hardware::Return; 33 using ::android::hardware::light::V2_0::LightState; 34 using ::android::hardware::light::V2_0::Status; 35 using ::android::hardware::light::V2_0::Type; 36 using HwILight = ::android::hardware::light::V2_0::ILight; 37 38 constexpr const char kHighBrightnessModeNode[] = 39 "/sys/class/backlight/panel0-backlight/hbm_mode"; 40 41 struct LightExt : public ::hardware::google::light::V1_0::ILight { LightExtLightExt42 LightExt(HwILight*&& light) : mLight(light) { 43 mHasHbmNode = !access(kHighBrightnessModeNode, F_OK); 44 }; 45 // Methods from ::android::hardware::light::V2_0::ILight follow. 46 Return<Status> setLight(Type type, const LightState& state) override; getSupportedTypesLightExt47 Return<void> getSupportedTypes(getSupportedTypes_cb _hidl_cb) override { 48 return mLight->getSupportedTypes(_hidl_cb); 49 } 50 51 // Methods from ::hardware::google::light::V1_0::ILight follow. 52 Return<Status> setHbm(bool on) override; 53 54 private: 55 std::unique_ptr<HwILight> mLight; 56 Return<Status> applyHBM(bool on); 57 bool mVRMode = 0; 58 bool mRegHBM = 0; 59 bool mCurHBM = 0; 60 bool mHasHbmNode = false; 61 }; 62 } // namespace implementation 63 } // namespace V1_0 64 } // namespace light 65 } // namespace google 66 } // namespace hardware 67 68 #endif // HARDWARD_GOOGLE_LIGHT_V1_0_LIGHT_H 69