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
24 #include <iostream>
25 #include <memory>
26
exit_with_error(const std::string & help,const char * err)27 static void exit_with_error(const std::string& help, const char* err)
28 {
29 std::cerr << "ERROR: " << err << std::endl << help << std::endl;
30 exit(-1);
31 }
32
main(int argc,char ** argv)33 int main(int argc, char** argv)
34 {
35 // Read arguments.
36 std::string syspath = "";
37 std::string devpath = "";
38 std::string sensor_id = "";
39
40 CLI::App app{"OpenBMC Hwmon Daemon"};
41 app.add_option("-p,--path", syspath, "sysfs location to monitor");
42 app.add_option("-o,--dev-path", devpath, "device path to monitor");
43 app.add_option("-i,--sensor-id", sensor_id, "dbus sensor instance id");
44
45 CLI11_PARSE(app, argc, argv);
46
47 // Parse out path argument.
48 auto path = devpath;
49 auto param = path;
50 if (!path.empty())
51 {
52 // This path may either be a device path (starts with
53 // /devices), or an open firmware device tree path.
54 if (path.substr(0, 8) == "/devices")
55 {
56 path = sysfs::findHwmonFromDevPath(path);
57 }
58 else
59 {
60 path = sysfs::findHwmonFromOFPath(path);
61 }
62 }
63
64 if (path.empty())
65 {
66 path = syspath;
67 param = path;
68 }
69
70 if (path.empty())
71 {
72 exit_with_error(app.help("", CLI::AppFormatMode::All),
73 "Path not specified or invalid.");
74 }
75
76 // Determine the physical device sysfs path.
77 auto calloutPath = sysfs::findCalloutPath(path);
78 if (calloutPath.empty())
79 {
80 exit_with_error(app.help("", CLI::AppFormatMode::All),
81 "Unable to determine callout path.");
82 }
83
84 hwmonio::HwmonIO io(path);
85 MainLoop loop(sdbusplus::bus::new_default(), param, path, calloutPath,
86 BUSNAME_PREFIX, SENSOR_ROOT, sensor_id, &io);
87 loop.run();
88
89 return 0;
90 }
91
92 // vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
93