1 /** 2 * Copyright © 2016 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 #include "config.h" 17 18 #include "hwmonio.hpp" 19 #include "mainloop.hpp" 20 #include "sysfs.hpp" 21 22 #include <CLI/CLI.hpp> 23 #include <iostream> 24 #include <memory> 25 26 static void exit_with_error(const std::string& help, const char* err) 27 { 28 std::cerr << "ERROR: " << err << std::endl << help << std::endl; 29 exit(-1); 30 } 31 32 int main(int argc, char** argv) 33 { 34 // Read arguments. 35 std::string syspath = ""; 36 std::string devpath = ""; 37 38 CLI::App app{"OpenBMC Hwmon Daemon"}; 39 app.add_option("-p,--path", syspath, "sysfs location to monitor"); 40 app.add_option("-o,--dev-path", devpath, "device path to monitor"); 41 42 CLI11_PARSE(app, argc, argv); 43 44 // Parse out path argument. 45 auto path = devpath; 46 auto param = path; 47 if (!path.empty()) 48 { 49 // This path may either be a device path (starts with 50 // /devices), or an open firmware device tree path. 51 if (path.substr(0, 8) == "/devices") 52 { 53 path = sysfs::findHwmonFromDevPath(path); 54 } 55 else 56 { 57 path = sysfs::findHwmonFromOFPath(path); 58 } 59 } 60 61 if (path.empty()) 62 { 63 path = syspath; 64 param = path; 65 } 66 67 if (path.empty()) 68 { 69 exit_with_error(app.help("", CLI::AppFormatMode::All), 70 "Path not specified or invalid."); 71 } 72 73 // Determine the physical device sysfs path. 74 auto calloutPath = sysfs::findCalloutPath(path); 75 if (calloutPath.empty()) 76 { 77 exit_with_error(app.help("", CLI::AppFormatMode::All), 78 "Unable to determine callout path."); 79 } 80 81 hwmonio::HwmonIO io(path); 82 MainLoop loop(sdbusplus::bus::new_default(), param, path, calloutPath, 83 BUSNAME_PREFIX, SENSOR_ROOT, &io); 84 loop.run(); 85 86 return 0; 87 } 88 89 // vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4 90