monitor: Add up/down count fault detection
Create an up/down count fault determination algorithm that
could be used in place of the current timer based outOfRange()
function.
The up/down count is a different method for determining when
a fan is faulted by counting up each iteration a rotor is
out of spec and removing those counts when the rotor
returns within spec.
Tested:
1. Remove a fan and run Mihawk, the counter add 1 when sensor
is out of spec, and replaced the fan back before hit the
threshold, the counter decrement back to 0.
2. Remove a fan, counter add 1 and mark the removed fan as
nonfunctional when counter reaches the threshold, and
Replaced the fan back, counter will decrement back to 0
and fan back to functional.
Change-Id: I632dd2c7553b007beb7ae6bb694a590d2cfc2a1c
Signed-off-by: Jolie Ku <jolie_ku@wistron.com>
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/monitor/fan.hpp b/monitor/fan.hpp
index a50bbb5..91ea395 100644
--- a/monitor/fan.hpp
+++ b/monitor/fan.hpp
@@ -107,16 +107,16 @@
void tachChanged();
/**
- * @brief The callback function for the timer
+ * @brief The callback function for the method
*
* Sets the sensor to not functional.
* If enough sensors are now not functional,
* updates the functional status of the whole
* fan in the inventory.
*
- * @param[in] sensor - the sensor whose timer expired
+ * @param[in] sensor - the sensor for state update
*/
- void timerExpired(TachSensor& sensor);
+ void updateState(TachSensor& sensor);
/**
* @brief Get the name of the fan