rtu: implement modbus sensor read
Read the modbus device config from the Entity Manager configuration and
create the sensor interfaces for related sensor register config.
Tested:
Added new Unit test named test_sensors -
```
> meson test -t 10 -C builddir/ --print-errorlogs --wrapper="valgrind --error-exitcode=1" test_sensors
ninja: Entering directory `/host/repos/Modbus/phosphor-modbus/builddir'
[2/2] Linking target tests/test_sensors
1/1 test_sensors OK 13.98s
Ok: 1
Fail: 0
```
Tested on Qemu using Mock Modbus Device -
```
root@ventura:~# busctl tree xyz.openbmc_project.ModbusRTU
└─ /xyz
└─ /xyz/openbmc_project
├─ /xyz/openbmc_project/inventory_source
│ ├─ /xyz/openbmc_project/inventory_source/Heat_Exchanger_12_DevTTYUSB0
│ ├─ /xyz/openbmc_project/inventory_source/Heat_Exchanger_12_DevTTYUSB1
│ ├─ /xyz/openbmc_project/inventory_source/Reservoir_Pumping_Unit_12_DevTTYUSB0
│ └─ /xyz/openbmc_project/inventory_source/Reservoir_Pumping_Unit_12_DevTTYUSB1
└─ /xyz/openbmc_project/sensors
└─ /xyz/openbmc_project/sensors/temperature
├─ /xyz/openbmc_project/sensors/temperature/Reservoir_Pumping_Unit_12_DevTTYUSB0_RPU_Coolant_Inlet_Temp_C
├─ /xyz/openbmc_project/sensors/temperature/Reservoir_Pumping_Unit_12_DevTTYUSB0_RPU_Coolant_Outlet_Temp_C
├─ /xyz/openbmc_project/sensors/temperature/Reservoir_Pumping_Unit_12_DevTTYUSB1_RPU_Coolant_Inlet_Temp_C
└─ /xyz/openbmc_project/sensors/temperature/Reservoir_Pumping_Unit_12_DevTTYUSB1_RPU_Coolant_Outlet_Temp_C
busctl introspect xyz.openbmc_project.ModbusRTU /xyz/openbmc_project/sensors/temperature/Reservoir_Pumping_Unit_12_DevTTYUSB1_RPU_Coolant_Outlet_Temp_C
NAME TYPE SIGNATURE RESULT/VALUE FLAGS
org.freedesktop.DBus.Introspectable interface - - -
.Introspect method - s -
org.freedesktop.DBus.Peer interface - - -
.GetMachineId method - s -
.Ping method - - -
org.freedesktop.DBus.Properties interface - - -
.Get method ss v -
.GetAll method s a{sv} -
.Set method ssv - -
.PropertiesChanged signal sa{sv}as - -
xyz.openbmc_project.Sensor.Value interface - - -
.MaxValue property d nan emits-change writable
.MinValue property d nan emits-change writable
.Unit property s "xyz.openbmc_project.Sensor.Value.Unit.… emits-change writable
.Value property d 1670.6 emits-change writable
```
Change-Id: I1368e8df5999b5cee9ac19d185ee110a9ecc3021
Signed-off-by: Jagpal Singh Gill <paligill@gmail.com>
diff --git a/rtu/device/device_factory.cpp b/rtu/device/device_factory.cpp
new file mode 100644
index 0000000..d707952
--- /dev/null
+++ b/rtu/device/device_factory.cpp
@@ -0,0 +1,54 @@
+#include "device_factory.hpp"
+
+#include "reservoir_pump_unit.hpp"
+
+#include <string>
+#include <vector>
+
+namespace phosphor::modbus::rtu::device
+{
+
+using ReservoirPumpUnitIntf = phosphor::modbus::rtu::device::ReservoirPumpUnit;
+
+auto DeviceFactory::getInterfaces() -> std::vector<std::string>
+{
+ std::vector<std::string> interfaces{};
+
+ auto rpuInterfaces = ReservoirPumpUnitIntf::getInterfaces();
+ interfaces.insert(interfaces.end(), rpuInterfaces.begin(),
+ rpuInterfaces.end());
+
+ return interfaces;
+}
+
+auto DeviceFactory::getConfig(sdbusplus::async::context& ctx,
+ const sdbusplus::message::object_path& objectPath,
+ const std::string& interfaceName)
+ -> sdbusplus::async::task<std::optional<config::DeviceFactoryConfig>>
+{
+ auto rpuInterfaces = ReservoirPumpUnitIntf::getInterfaces();
+ if (rpuInterfaces.find(interfaceName) != rpuInterfaces.end())
+ {
+ co_return co_await ReservoirPumpUnitIntf::getConfig(ctx, objectPath,
+ interfaceName);
+ }
+
+ co_return std::nullopt;
+}
+
+auto DeviceFactory::create(sdbusplus::async::context& ctx,
+ const config::DeviceFactoryConfig& config,
+ PortIntf& serialPort) -> std::unique_ptr<BaseDevice>
+{
+ switch (config.deviceType)
+ {
+ case config::DeviceType::reservoirPumpUnit:
+ return std::make_unique<ReservoirPumpUnit>(ctx, config, serialPort);
+ default:
+ break;
+ }
+
+ return nullptr;
+}
+
+} // namespace phosphor::modbus::rtu::device