1 /** 2 * Copyright 2017 Google Inc. 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 <string> 18 19 #include "util.hpp" 20 21 22 static constexpr auto external_sensor = 23 "/xyz/openbmc_project/extsensors/"; // type/ 24 static constexpr auto openbmc_sensor = "/xyz/openbmc_project/"; // type/ 25 static constexpr auto dbus_pwm = "/xyz/openbmc_project/control/fanpwm/"; 26 static constexpr auto sysfs = "/sys/"; 27 28 29 IOInterfaceType GetWriteInterfaceType(const std::string& path) 30 { 31 if (path.empty() || "None" == path) 32 { 33 return IOInterfaceType::NONE; 34 } 35 36 if (path.find(sysfs) != std::string::npos) 37 { 38 // A sysfs read sensor. 39 return IOInterfaceType::SYSFS; 40 } 41 42 if (path.find(dbus_pwm) != std::string::npos) 43 { 44 return IOInterfaceType::DBUSACTIVE; 45 } 46 47 return IOInterfaceType::UNKNOWN; 48 } 49 50 IOInterfaceType GetReadInterfaceType(const std::string& path) 51 { 52 if (path.empty() || "None" == path) 53 { 54 return IOInterfaceType::NONE; 55 } 56 57 if (path.find(external_sensor) != std::string::npos) 58 { 59 return IOInterfaceType::EXTERNAL; 60 } 61 62 if (path.find(openbmc_sensor) != std::string::npos) 63 { 64 return IOInterfaceType::DBUSPASSIVE; 65 } 66 67 if (path.find(sysfs) != std::string::npos) 68 { 69 return IOInterfaceType::SYSFS; 70 } 71 72 return IOInterfaceType::UNKNOWN; 73 } 74 75