setup/ioemu/sub-view/gpio

#!/bin/bash


# (1) Primary init.
#--------------------------------------------------------#
# (1) Get absolute folder #
ROOT=$(dirname `realpath $0`);
ROOT=`dirname $ROOT`;

# (2) Check lock file #
test ! -f $ROOT/.lock && echo "Daemon not started" && exit 1;



# (2) While viewing loop
#--------------------------------------------------------#
# (1) Initialise vars #
LED="0"; Rx=(0 0 0); # led; relays
SYSTD_TREE="";       # service_log

# (2) Get BUF_IN #
source $ROOT/com/config_ioemu;


while sleep 2; clear; do

	# (3) Get last value from lines beginning by 'GSTA' #
	STATE="`cat $BUF_IN | grep -Po "^GPIO(.+)$" | sed 's/^GPIO\(....\)$/\1/g' | tail -n1`";

	echo "state: $STATE";

	# (4) Apply to values if not 'x' (means 'ignore' that chip) #
	if [ ! -z "$STATE" ]; then

		test "${STATE:0:1}" != "x" && LED="${STATE:0:1}";   # if set to 'x', ignore
		test "${STATE:1:1}" != "x" && Rx[1]="${STATE:1:1}"; # if set to 'x', ignore
		test "${STATE:2:1}" != "x" && Rx[2]="${STATE:2:1}"; # if set to 'x', ignore
		test "${STATE:3:1}" != "x" && Rx[3]="${STATE:3:1}"; # if set to 'x', ignore

	fi;

	# (5) Display led #
	echo -n "LED: "; $ROOT/src/disp-led $LED;

	# (6) Display relays #
	echo -n "R1:  "; $ROOT/src/disp-relay ${Rx[1]};
	echo -n "R2:  "; $ROOT/src/disp-relay ${Rx[2]};
	echo -n "R3:  "; $ROOT/src/disp-relay ${Rx[3]};

done;