Make specific UNA sensors not trigger failsafe
By convention, sensors at some states like 'not present',
'power state not matching' are marked as 'unavailable' on dbus.
At such states, some specific sensors should not be considered as
failed and trigger pid 'failsafe'.
A typical example is when a system is powered-off, its CPU/DIMM temp
sensors are 'unavailable', these sensors should not be treated as
'failed' and trigger pid 'failsafe'. This is necessary for systems
whose Fans will keep working when the CPU is off.
This feature is configurable per sensor (valid on thermal sensors). It
can be enabled by setting the Pid controller option
"InputUnavailableAsFailed" to 'false' when one configuring the PID module
via entity-manager, or by setting the sensor option "unavailableAsFailed"
to 'false' when one configuring the PID module via JSON. (These options are
optional and default to 'true')
Tested:
1. On a Fan 'always-on' system, enabale this feature on CPU temp sensors,
poweroff the system, 'unavailable' CPU temp sensors do not trigger the
failsafe mode.
2. 'Unavailable' Fans still trigger the failsafe mode.
3. 'Unfunctional' or 'failed' sensors still trigger the failsafe mode.
Signed-off-by: Zheng Song <zheng.song@intel.com>
Change-Id: I1dd1d76466f43e7dcf51c161c96714f1bcfae88d
diff --git a/conf.hpp b/conf.hpp
index e471f22..9122a28 100644
--- a/conf.hpp
+++ b/conf.hpp
@@ -27,6 +27,7 @@
int64_t max;
int64_t timeout;
bool ignoreDbusMinMax;
+ bool unavailableAsFailed;
};
/*