#!/bin/bash

if grep -v -q ibmasmfs /proc/filesystems; then
	modprobe ibmasm || exit 1
fi

echo -en "\nWaiting for ibmasm device to appear (10 seconds timeout)"
TIMEOUT=10
for ((i=0; i<$TIMEOUT; i++)); do
	DEVICE=`evnode -n "ibmasm RSA I remote mouse"`
	if [ ! -z $DEVICE ]; then 
		TIMEOUT="ok"
		break; 
	fi
	echo -n ". "
	sleep 1
done
# Check the timeout.
if [ $TIMEOUT == 10 ]; then
	echo -en "No device detected. Aborted."
	exit 1
fi

echo
DEVICE=`evnode -n "ibmasm RSA I remote mouse"`
XCONFIG="/etc/X11/xorg.conf"
if [ -e $XCONFIG ]; then
	TMPFILE=`mktemp ibmspupX.XXXXXXXXXX` || exit 1
	AWKFILE=`mktemp ibmspupAWK.XXXXXXXXXX` || exit 1
	cat > $AWKFILE <<-ENDAWK
	BEGIN{
	        found_ibmasm=0
	        started_input=0
	        server_ok = 0
	}
	{
	        lines=0
	        do {
	                if (\$1 == "Section" || lines > 0) {
	                        section[lines] = \$0
	                        lines++
	                        if (\$1 == "Section")
	                                section["name"] = \$2
	                        if (\$1 == "EndSection")
	                                break
	                        if (\$0 ~ /Identifier[ \t]*"ibmasm_remote"/) {
	                                found_ibmasm = 1
	                        } else if (found_ibmasm == 1 && \$0 ~ /Option[\t ]*"Device"/) {
	                                found_ibmasm = 2
	                                sub(/Option[\t ]*"Device"[\t ]*"[^"]*"/,
	                                    "Option       \"Device\" \"$DEVICE\"", \$0)
	                                section[lines-1] = \$0
	                        }
	                        if (\$0 ~ /InputDevice[ \t]*"ibmasm_remote"/)
	                                server_ok = 1
	                } else
	                        print \$0
	        } while (getline)
	        if (lines == 0)
	       	        exit
	
	        if (index(section["name"], "InputDevice") != 0 && found_ibmasm == 0) {
	                started_input = 1
	        } else if (index(section["name"], "ServerLayout") != 0 && server_ok == 0) {
	                server_ok = 2
	        } else if (started_input == 1 && found_ibmasm == 0) {
	                print "Section \"InputDevice\""
	                print "\tDriver       \"ibmasm\""
	                print "\tIdentifier   \"ibmasm_remote\""
	                print "\tOption       \"Device\" \"$DEVICE\""
	                print "\tOption       \"XScale\" \"1024\""
	                print "\tOption       \"YScale\" \"768\""
	                print "\tOption       \"SendCoreEvents\" \"True\""
	                print "EndSection\n"
	                found_ibmasm = 2
	        }
	        for (i=0; i<lines; i++) {
	                if (server_ok == 2 && i == lines-1) {
	                        printf "\tInputDevice\t\"ibmasm_remote\"\n"
	                        server_ok = 3
	                }
	                printf "%s\n", section[i]
	        }
	        delete section
	}
	ENDAWK
	awk -f $AWKFILE $XCONFIG > $TMPFILE 
	mv $XCONFIG ${XCONFIG}.ibmspupsave
	mv $TMPFILE $XCONFIG
	rm -f $AWKFILE
fi

mount -t ibmasmfs ibmasm /var/lib/ibmasm

/sbin/ibmsphalt > /dev/null 2>&1 &