1 #include "operational-status-monitor.hpp"
2 
3 #include <phosphor-logging/elog.hpp>
4 #include <phosphor-logging/lg2.hpp>
5 
6 namespace phosphor
7 {
8 namespace led
9 {
10 namespace Operational
11 {
12 namespace status
13 {
14 namespace monitor
15 {
16 
matchHandler(sdbusplus::message_t & msg)17 void Monitor::matchHandler(sdbusplus::message_t& msg)
18 {
19     // Get the ObjectPath of the `xyz.openbmc_project.Inventory.Manager`
20     // service
21     std::string invObjectPath = msg.get_path();
22 
23     // Get all the properties of
24     // "xyz.openbmc_project.State.Decorator.OperationalStatus" interface
25     std::string interfaceName{};
26     std::unordered_map<std::string, std::variant<bool>> properties;
27     msg.read(interfaceName, properties);
28 
29     const auto it = properties.find("Functional");
30     if (it != properties.end())
31     {
32         const bool* value = std::get_if<bool>(&it->second);
33         if (!value)
34         {
35             lg2::error(
36                 "Failed to get the Functional property, INVENTORY_PATH = {PATH}",
37                 "PATH", invObjectPath);
38             return;
39         }
40 
41         // See if the Inventory D-Bus object has an association with LED groups
42         // D-Bus object.
43         auto ledGroupPath = getLedGroupPaths(invObjectPath);
44         if (ledGroupPath.empty())
45         {
46             lg2::info(
47                 "The inventory D-Bus object is not associated with the LED "
48                 "group D-Bus object. INVENTORY_PATH = {PATH}",
49                 "PATH", invObjectPath);
50             return;
51         }
52 
53         // Update the Asserted property by the Functional property value.
54         updateAssertedProperty(ledGroupPath, *value);
55     }
56 }
57 
58 std::vector<std::string>
getLedGroupPaths(const std::string & inventoryPath) const59     Monitor::getLedGroupPaths(const std::string& inventoryPath) const
60 {
61     // Get endpoints from fType
62     std::string faultLedAssociation = inventoryPath + "/fault_identifying";
63 
64     // endpoint contains the vector of strings, where each string is a Inventory
65     // D-Bus object that this, associated with this LED Group D-Bus object
66     // pointed to by fru_fault
67     PropertyValue endpoint{};
68 
69     try
70     {
71         endpoint = dBusHandler.getProperty(faultLedAssociation,
72                                            "xyz.openbmc_project.Association",
73                                            "endpoints");
74     }
75     catch (const sdbusplus::exception_t& e)
76     {
77         lg2::error(
78             "Failed to get endpoints property, ERROR = {ERROR}, PATH = {PATH}",
79             "ERROR", e, "PATH", faultLedAssociation);
80 
81         return {};
82     }
83 
84     return std::get<std::vector<std::string>>(endpoint);
85 }
86 
updateAssertedProperty(const std::vector<std::string> & ledGroupPaths,bool value)87 void Monitor::updateAssertedProperty(
88     const std::vector<std::string>& ledGroupPaths, bool value)
89 {
90     for (const auto& path : ledGroupPaths)
91     {
92         try
93         {
94             // Call "Group Asserted --> true" if the value of Functional is
95             // false Call "Group Asserted --> false" if the value of Functional
96             // is true
97             PropertyValue assertedValue{!value};
98             dBusHandler.setProperty(path, "xyz.openbmc_project.Led.Group",
99                                     "Asserted", assertedValue);
100         }
101         catch (const sdbusplus::exception_t& e)
102         {
103             lg2::error(
104                 "Failed to set Asserted property, ERROR = {ERROR}, PATH = {PATH}",
105                 "ERROR", e, "PATH", path);
106         }
107     }
108 }
109 } // namespace monitor
110 } // namespace status
111 } // namespace Operational
112 } // namespace led
113 } // namespace phosphor
114