commit 7184805ae4ede906935133e3e0f8ee2468bc781b
author Jagpal Singh Gill <paligill@gmail.com> Thu Oct 16 00:28:58 2025 -0700
committer Jagpal Singh Gill <paligill@gmail.com> Tue Nov 11 12:53:27 2025 -0800
tree 69f4e8d799c0f3a51c9f011b27e4d9fa99c5d79a
parent e92aba4516471f5a01d4ab1f93eb9919ec05c21f

rtu: add read status register and event support

Add support to read the status registers and generate the appropriate
events.

Tested:
Unit Test -
```
> meson test -t 10 -C builddir/ --print-errorlogs --wrapper="valgrind --error-exitcode=1" test_events
ninja: Entering directory `/host/repos/Modbus/phosphor-modbus/builddir'
ninja: no work to do.
1/1 test_events        OK               9.69s

Ok:                1
Fail:              0
```

Tested on Qemu -
```
Apr 03 15:41:52 ventura phosphor-modbus-rtu[1654]: OPENBMC_MESSAGE_ID={"xyz.openbmc_project.Sensor.SensorFailure":{"SENSOR_NAME":"/xyz/openbmc_project/sensors/RPU_Coolant_Outlet_Thermometer_Status","_SOURCE":{"COLUMN":73,"FILE":"../git/common/ev
ents.cpp","FUNCTION":"sdbusplus::async::task<> phosphor::modbus::events::Events::generateSensorFailureEvent(sdbusplus::message::object_path, bool)","LINE":95,"PID":1654}}}
...
Apr 03 15:41:52 ventura phosphor-modbus-rtu[1654]: OPENBMC_MESSAGE_ID={"xyz.openbmc_project.Sensor.Threshold.ReadingCritical":{"READING_VALUE":1670.6000000000001,"SENSOR_NAME":"/xyz/openbmc_project/sensors/RPU_Coolant_Outlet_Temp_C","UNITS":"xyz
.openbmc_project.Sensor.Value.Unit.DegreesC","_SOURCE":{"COLUMN":67,"FILE":"../git/common/events.cpp","FUNCTION":"sdbusplus::async::task<> phosphor::modbus::events::Events::generateSensorReadingEvent(sdbusplus::message::object_path, phosphor::modbus::events::EventLevel, double, sdbusplus::common::xyz::openbmc_project::sensor::Value::Unit, bool)","LINE":48,"PID":1654}}}
```

Change-Id: Icd78f22cf07798d06916cc077ec3f8bfac9ee8d3
Signed-off-by: Jagpal Singh Gill <paligill@gmail.com>

rtu/device_manager.cpp

diff --git a/rtu/device_manager.cpp b/rtu/device_manager.cpp
index 804f6eb..27c9071 100644
--- a/rtu/device_manager.cpp
+++ b/rtu/device_manager.cpp
@@ -38,7 +38,8 @@
     ctx(ctx),
     entityManager(ctx, getInterfaces(),
                   std::bind_front(&DeviceManager::processConfigAdded, this),
-                  std::bind_front(&DeviceManager::processConfigRemoved, this))
+                  std::bind_front(&DeviceManager::processConfigRemoved, this)),
+    events(ctx)
 {
     ctx.spawn(entityManager.handleInventoryGet());
     info("DeviceManager created successfully");
@@ -151,8 +152,8 @@
             co_return;
         }
 
-        auto device =
-            DeviceFactoryIntf::create(ctx, config, *(serialPort->second));
+        auto device = DeviceFactoryIntf::create(ctx, config,
+                                                *(serialPort->second), events);
         ctx.spawn(device->readSensorRegisters());
         devices[config.name] = std::move(device);
     }