Add support for GPIO polling for presence detection
The current PresenceGpio implementation uses event driven detection by
using the gpioLine.event_read method to detect GPIO signal changes, and
then to determine the presence status.
This commit will add support for a PollingPresenceGpio for GPIOs that
do not support events. It will use a pollTimer to periodically read the
GPIO status (every second).
The monitorPresence() function should be called to initiate the
monitoring of the GPIO.
TEST: Tested with multiple GPIOs including disabling to simulate
removing of device and enable to re-detect device. Unable to test Event
driven GPIO due to no hw available.
Change-Id: If46e884ad237dfe909a9373773c8302a0844ac90
Signed-off-by: Chris Cain <cjcain@us.ibm.com>
diff --git a/src/fan/TachSensor.cpp b/src/fan/TachSensor.cpp
index 7908488..10a34a4 100644
--- a/src/fan/TachSensor.cpp
+++ b/src/fan/TachSensor.cpp
@@ -78,6 +78,7 @@
if (presence)
{
+ presence->monitorPresence();
itemIface =
objectServer.add_interface("/xyz/openbmc_project/inventory/" + name,
"xyz.openbmc_project.Inventory.Item");