1 /* 2 * Copyright (C) 2017 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 17 #include <iostream> 18 #include <string> 19 20 #include <android-base/logging.h> 21 #include <android/hardware/light/2.0/ILight.h> 22 23 void error(const std::string& msg) { 24 LOG(ERROR) << msg; 25 std::cerr << msg << std::endl; 26 } 27 28 int main() { 29 using ::android::hardware::hidl_vec; 30 using ::android::hardware::light::V2_0::Brightness; 31 using ::android::hardware::light::V2_0::Flash; 32 using ::android::hardware::light::V2_0::ILight; 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 ::android::sp; 37 38 sp<ILight> service = ILight::getService(); 39 if (service == nullptr) { 40 error("Could not retrieve light service."); 41 return -1; 42 } 43 44 const static LightState off = { 45 .color = 0u, .flashMode = Flash::NONE, .brightnessMode = Brightness::USER, 46 }; 47 48 service->getSupportedTypes([&](const hidl_vec<Type>& types) { 49 for (Type type : types) { 50 Status ret = service->setLight(type, off); 51 if (ret != Status::SUCCESS) { 52 error("Failed to shut off screen for type " + 53 std::to_string(static_cast<int>(type))); 54 } 55 } 56 }); 57 58 return 0; 59 } 60
