1 // SPDX-License-Identifier: Apache-2.0
2 // SPDX-FileCopyrightText: Copyright 2017 Google Inc
3
4 #include "dbus_mode.hpp"
5
6 #include <ipmid/api-types.hpp>
7 #include <sdbusplus/bus.hpp>
8 #include <sdbusplus/exception.hpp>
9 #include <sdbusplus/message.hpp>
10 #include <xyz/openbmc_project/Control/Mode/client.hpp>
11
12 #include <cstdint>
13 #include <map>
14 #include <string>
15 #include <variant>
16
17 using ControlMode = sdbusplus::common::xyz::openbmc_project::control::Mode;
18
19 namespace pid_control::ipmi
20 {
21
22 static constexpr auto objectPath = "/xyz/openbmc_project/settings/fanctrl/zone";
23 static constexpr auto busName = "xyz.openbmc_project.State.FanCtrl";
24 static constexpr auto propertiesintf = "org.freedesktop.DBus.Properties";
25
26 using Property = std::string;
27 using Value = std::variant<bool>;
28 using PropertyMap = std::map<Property, Value>;
29
30 /* The following was copied directly from my manual thread handler. */
getControlPath(int8_t zone)31 static std::string getControlPath(int8_t zone)
32 {
33 return std::string(objectPath) + std::to_string(zone);
34 }
35
getFanCtrlProperty(uint8_t zoneId,bool * value,const std::string & property)36 uint8_t DbusZoneControl::getFanCtrlProperty(uint8_t zoneId, bool* value,
37 const std::string& property)
38 {
39 std::string path = getControlPath(zoneId);
40
41 auto propertyReadBus = sdbusplus::bus::new_system();
42 auto pimMsg = propertyReadBus.new_method_call(busName, path.c_str(),
43 propertiesintf, "GetAll");
44 pimMsg.append(ControlMode::interface);
45
46 try
47 {
48 PropertyMap propMap;
49
50 /* a method could error but the call not error. */
51 auto valueResponseMsg = propertyReadBus.call(pimMsg);
52
53 valueResponseMsg.read(propMap);
54
55 *value = std::get<bool>(propMap[property]);
56 }
57 catch (const sdbusplus::exception_t& ex)
58 {
59 return ::ipmi::ccInvalidCommand;
60 }
61
62 return ::ipmi::ccSuccess;
63 }
64
setFanCtrlProperty(uint8_t zoneId,bool value,const std::string & property)65 uint8_t DbusZoneControl::setFanCtrlProperty(uint8_t zoneId, bool value,
66 const std::string& property)
67 {
68 using Value = std::variant<bool>;
69 Value v{value};
70
71 std::string path = getControlPath(zoneId);
72
73 auto PropertyWriteBus = sdbusplus::bus::new_system();
74 auto pimMsg = PropertyWriteBus.new_method_call(busName, path.c_str(),
75 propertiesintf, "Set");
76 pimMsg.append(ControlMode::interface);
77 pimMsg.append(property);
78 pimMsg.append(v);
79
80 try
81 {
82 PropertyWriteBus.call_noreply(pimMsg);
83 }
84 catch (const sdbusplus::exception_t& ex)
85 {
86 return ::ipmi::ccInvalidCommand;
87 }
88
89 /* TODO(venture): Should sanity check the result. */
90 return ::ipmi::ccSuccess;
91 }
92
93 } // namespace pid_control::ipmi
94