Monitor UCD90160 for faults at runtime
Add the RuntimeMonitor class that will monitor the
UCD90160 faults in 2 ways:
1) Watch for the PowerLost signal, meaning system
PGOOD was lost. When it occurs, analyze the
chip for errors and then issue a proper shutdown
so a faulted device doesn't keep getting power.
2) Poll on an interval for nonfatal errors that need
to be logged but don't cause a PGOOD loss.
The main executable can now launch either the PGOODMonitor
or the RuntimeMonitor based on commandline arguments.
Change-Id: If2856f173d5d6288d8333538334b4b4cb4a60097
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/power-sequencer/runtime_monitor.cpp b/power-sequencer/runtime_monitor.cpp
new file mode 100644
index 0000000..3873ac0
--- /dev/null
+++ b/power-sequencer/runtime_monitor.cpp
@@ -0,0 +1,58 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <phosphor-logging/log.hpp>
+#include "runtime_monitor.hpp"
+#include "utility.hpp"
+
+namespace witherspoon
+{
+namespace power
+{
+
+using namespace phosphor::logging;
+
+int RuntimeMonitor::run()
+{
+ device->clearFaults();
+
+ return DeviceMonitor::run();
+}
+
+void RuntimeMonitor::onPowerLost(sdbusplus::message::message& msg)
+{
+ log<level::INFO>("PGOOD failure detected. Checking for faults.");
+
+ try
+ {
+ timer.stop();
+
+ device->onFailure();
+
+ //Note: This application only runs when the system has
+ //power, so it will be killed by systemd sometime shortly
+ //after this power off is issued.
+
+ util::powerOff(bus);
+ }
+ catch (std::exception& e)
+ {
+ //No need to crash
+ log<level::ERR>(e.what());
+ }
+}
+
+}
+}