Patrick Venture | 863b924 | 2018-03-08 08:29:23 -0800 | [diff] [blame] | 1 | #include <iostream> |
| 2 | |
| 3 | #include "dbus/util.hpp" |
| 4 | |
| 5 | using Property = std::string; |
| 6 | using Value = sdbusplus::message::variant<int64_t, std::string>; |
| 7 | using PropertyMap = std::map<Property, Value>; |
| 8 | |
| 9 | /* TODO(venture): Basically all phosphor apps need this, maybe it should be a |
| 10 | * part of sdbusplus. There is an old version in libmapper. |
| 11 | */ |
| 12 | std::string GetService(sdbusplus::bus::bus& bus, |
| 13 | const std::string& intf, |
| 14 | const std::string& path) |
| 15 | { |
| 16 | auto mapper = bus.new_method_call( |
| 17 | "xyz.openbmc_project.ObjectMapper", |
| 18 | "/xyz/openbmc_project/object_mapper", |
| 19 | "xyz.openbmc_project.ObjectMapper", |
| 20 | "GetObject"); |
| 21 | |
| 22 | mapper.append(path); |
| 23 | mapper.append(std::vector<std::string>({intf})); |
| 24 | |
| 25 | auto responseMsg = bus.call(mapper); |
| 26 | if (responseMsg.is_method_error()) |
| 27 | { |
| 28 | throw std::runtime_error("ObjectMapper Call Failure"); |
| 29 | } |
| 30 | |
| 31 | std::map<std::string, std::vector<std::string>> response; |
| 32 | responseMsg.read(response); |
| 33 | |
| 34 | if (response.begin() == response.end()) |
| 35 | { |
| 36 | throw std::runtime_error("Unable to find Object: " + path); |
| 37 | } |
| 38 | |
| 39 | return response.begin()->first; |
| 40 | } |
| 41 | |
| 42 | void GetProperties(sdbusplus::bus::bus& bus, |
| 43 | const std::string& service, |
| 44 | const std::string& path, |
| 45 | struct SensorProperties* prop) |
| 46 | { |
| 47 | |
| 48 | auto pimMsg = bus.new_method_call(service.c_str(), |
| 49 | path.c_str(), |
| 50 | propertiesintf.c_str(), |
| 51 | "GetAll"); |
| 52 | |
| 53 | pimMsg.append(sensorintf); |
| 54 | auto valueResponseMsg = bus.call(pimMsg); |
| 55 | |
| 56 | if (valueResponseMsg.is_method_error()) |
| 57 | { |
| 58 | std::cerr << "Error in value call\n"; |
| 59 | throw std::runtime_error("ERROR in value call."); |
| 60 | } |
| 61 | |
| 62 | // The PropertyMap returned will look like this because it's always |
| 63 | // reading a Sensor.Value interface. |
| 64 | // a{sv} 3: |
| 65 | // "Value" x 24875 |
| 66 | // "Unit" s "xyz.openbmc_project.Sensor.Value.Unit.DegreesC" |
| 67 | // "Scale" x -3 |
| 68 | PropertyMap propMap; |
| 69 | valueResponseMsg.read(propMap); |
| 70 | |
Patrick Venture | 0d73b10 | 2018-05-09 10:29:42 -0700 | [diff] [blame] | 71 | // If no error was set, the values should all be there. |
Patrick Venture | 863b924 | 2018-03-08 08:29:23 -0800 | [diff] [blame] | 72 | prop->unit = sdbusplus::message::variant_ns::get<std::string>(propMap["Unit"]); |
| 73 | prop->scale = sdbusplus::message::variant_ns::get<int64_t>(propMap["Scale"]); |
| 74 | prop->value = sdbusplus::message::variant_ns::get<int64_t>(propMap["Value"]); |
| 75 | |
| 76 | return; |
| 77 | } |
| 78 | |
| 79 | std::string GetSensorPath(const std::string& type, const std::string& id) |
| 80 | { |
| 81 | std::string layer = type; |
| 82 | if (type == "fan") |
| 83 | { |
| 84 | layer = "fan_tach"; |
| 85 | } |
| 86 | else if (type == "temp") |
| 87 | { |
| 88 | layer = "temperature"; |
| 89 | } |
| 90 | else |
| 91 | { |
| 92 | layer = "unknown"; // TODO(venture): Need to handle. |
| 93 | } |
| 94 | |
| 95 | return std::string("/xyz/openbmc_project/sensors/" + layer + "/" + id); |
| 96 | } |
| 97 | |
| 98 | std::string GetMatch(const std::string& type, const std::string& id) |
| 99 | { |
| 100 | return std::string("type='signal'," |
| 101 | "interface='org.freedesktop.DBus.Properties'," |
| 102 | "member='PropertiesChanged'," |
| 103 | "path='" + GetSensorPath(type, id) + "'"); |
| 104 | } |
| 105 | |