#!/bin/sh

#	hplj1000:
#	hplj1005:
#	hplj1020:
#
#	Hotplug script for HP1000/1005/1020 USB laser printers. The model number
#	that this script deals with is determined from the udev env.
#
#	Used to download firmware automatically into the printer when it
#	is powered up or plugged into the USB port.
#
#	The inspiration fo this script is from:
#		Oscar Santacreu. Alicante-Spain (2002)
#		Mike Morgan (2004)
#	Modified by Stefan Schweizer (2005) to work as a udev-RUN-script

#
# Directory to find downloadable HP firmware files sihpMMMM.dl
#
FWDIR=/usr/share/foo2zjs/firmware

#
# Program used to determine USB id information
#
USBID=/usr/bin/usb_printerid

#
#	Figure out how to log our messages
#
if [ -t 1 ]; then
    # Running from a tty...
    log() {
	echo "$0: $@"
    }
elif [ -x /usr/bin/logger ]; then
    # Have logger...
    log() {
	logger -t "$0" -- "$@"
    }
else
    # No logger...
    log() {
	echo "$0: $@" >> /var/log/messages
    }
fi

#
#	Figure out the model number from the name of this script
#
case "$1" in
1000)
    MODEL=1000
    MODELNAME="hp LaserJet $MODEL"
    ;;
1005)
    MODEL=1005
    MODELNAME="hp LaserJet $MODEL"
    ;;
1020)
    MODEL=1020
    MODELNAME="HP LaserJet $MODEL"
    ;;
*)
    log "Only HP LaserJet 1000, 1005 and 1020 are supported"
    exit
    ;;
esac

#
#	Procedure to load a single device with firmware
#
load1() {
    fw="$FWDIR/sihp$MODEL.dl"
    if [ ! -f "$fw" ]; then
	log "Missing HP LaserJet $MODEL firmware file $fw"
	log "...read foo2zjs installation instructions and run ./getweb $MODEL"
	return 1
    fi

    log "loading HP LaserJet $MODEL firmware $fw to $DEVNAME ..."
    if cat $fw > $DEVNAME; then
	log "... download successful."
    else
	log "... download failed."
    fi
    return 0
}

#
#	OK, now download firmware to any printers that need it
#
if [ -x $USBID ]; then
	if $USBID $DEVNAME | grep "$MODELNAME" 2> /dev/null; then
	    # This is a LaserJet 100x
	    if $USBID $DEVNAME | grep 'FWVER' 2> /dev/null; then
		log "HP LaserJet $MODEL firmware already loaded into $DEVNAME"
	    else
		# Firmware is not yet loaded
		load1 "$DEVNAME"
	    fi
	else
	    log "Wrong printer detected .."
	fi
else
    log "HP LaserJet $MODEL firmware was not downloaded..."
    log "...couldn't find /usr/bin/usb_printerid"
fi