1 /** 2 * Copyright © 2019 IBM Corporation 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 #pragma once 18 #include <filesystem> 19 20 namespace phosphor 21 { 22 namespace led 23 { 24 class SysfsLed 25 { 26 public: 27 explicit SysfsLed(std::filesystem::path&& root) : root(std::move(root)) {} 28 SysfsLed() = delete; 29 SysfsLed(const SysfsLed& other) = delete; 30 SysfsLed(const SysfsLed&& other) = delete; 31 SysfsLed& operator=(const SysfsLed& other) = delete; 32 SysfsLed&& operator=(const SysfsLed&& other) = delete; 33 34 virtual ~SysfsLed() = default; 35 36 virtual unsigned long getBrightness(); 37 virtual void setBrightness(unsigned long brightness); 38 virtual unsigned long getMaxBrightness(); 39 virtual std::string getTrigger(); 40 virtual void setTrigger(const std::string& trigger); 41 virtual unsigned long getDelayOn(); 42 virtual void setDelayOn(unsigned long ms); 43 virtual unsigned long getDelayOff(); 44 virtual void setDelayOff(unsigned long ms); 45 46 protected: 47 static constexpr const char* attrBrightness = "brightness"; 48 static constexpr const char* attrMaxBrightness = "max_brightness"; 49 static constexpr const char* attrTrigger = "trigger"; 50 static constexpr const char* attrDelayOn = "delay_on"; 51 static constexpr const char* attrDelayOff = "delay_off"; 52 53 std::filesystem::path root; 54 }; 55 } // namespace led 56 } // namespace phosphor 57