Enable Wiegand data internal pull-ups

Back Door shield needs it as it does not have external pull-ups

.drone.yml

@@ -0,0 +1,2 @@
+kind: template
+load: docker-multiarch.yaml

Makefile

@@ -2,7 +2,7 @@
 
 all: build
 
-GOBUILDLDFLAGS="-X main.Version=`git describe --dirty`"
+GOBUILDLDFLAGS="-X main.Version=`git describe --always --dirty`"
 #GOBUILDLDFLAGS="-X main.Version=`git describe --dirty`  -linkmode 'external' -extldflags '-static'"
 
 build:

wiegand.go

@@ -113,14 +113,14 @@ func WiegandSetup(a int, b int, bitTimeout time.Duration, solenoid int) *Wiegand
 	}
 
 	wa, err := gpiod.RequestLine("gpiochip0", a, gpiod.AsInput,
-		gpiod.WithFallingEdge, gpiod.WithEventHandler(wiegand.wiegandAEvent))
+		gpiod.WithFallingEdge, gpiod.LineBiasPullUp, gpiod.WithEventHandler(wiegand.wiegandAEvent))
 	if err != nil {
 		panic(err)
 	}
 	wiegand.aLine = wa
 
 	wb, err := gpiod.RequestLine("gpiochip0", b, gpiod.AsInput,
-		gpiod.WithFallingEdge, gpiod.WithEventHandler(wiegand.wiegandBEvent))
+		gpiod.WithFallingEdge, gpiod.LineBiasPullUp, gpiod.WithEventHandler(wiegand.wiegandBEvent))
 	if err != nil {
 		panic(err)
 	}