#! /bin/sh -e # Based on: $Revision: 1.3 $ # THIS IS AN UNSUPPORTED SCRIPT PROVIDED 'AS-IS' ONLY!!! # Installation instructions: # 1. Download and save this file. # 2. As root, copy this file to: /etc/uucp/fix-usr # 3. Change file permissions to: chmod 755 /etc/uucp/fix-usr # 'Fix' an USRobotics modem. # This script writes a configuration suitable for operation with IRIX # into the non-volatile memory in the modem. # -i for inbound use only # -o for outbound use only # -io for both # -m model to specify the model number, as in "-m 14.4ex" # -v for verbose debugging # -c cmd to add the string of Hayes-like commands, "cmd", # to the end of string of initializations. # -s bps to specify the DTE speed, from "19200" or "115200" # This script must be run by "root". # When this script is run, it sends the responses of the modem to # standard out. It ends by telling the modem to display all # of its parameters. If you do not see the right results, # first check the cable to the modem. # This script uses 'ttyd*' device names, so that it is not stopped by a # need for DCD. Since there is often a getty(1M) running on # a 'ttyf*', and since you cannot simultaneously open 'ttyf' and # 'ttyd', it is necessary to stop the getty in /etc/inittab # before using this script. If a uugetty(1M) is running on the # port, it need not be turned off, because this script will # temporarily disable it. # Additional local commands should be added to this file in the following # line or provided with the -c option loc="" # Use a line in /etc/inittab like the following with an USRobotics Sporster #t2:23:respawn:/usr/lib/uucp/uugetty -Nt60 -iusrin,conn ttyf2 dx_38400 # Indy - port 2 #t2:23:respawn:/usr/lib/uucp/uugetty -Nt60 -iusrin,conn ttyf2 dx_115200 # O2 - port 2 USAGE="usage: `basename $0`: -i|-o|-io [-m model] [-v] [-c cmd] [-s 19200|38400|57600|115200] portno" if test $# -le 1 ; then echo "$USAGE" exit 1 fi while getopts "viom:c:s:" c; do case $c in i) in=1;; o) out=1;; v) if test ! -z "$verbose"; then set -v fi set -x verbose="-v" ;; m) model=`echo "$OPTARG" | tr '[a-z]' '[A-Z]'`;; c) loc="$loc $OPTARG";; s) speed="$OPTARG";; \?) echo "$USAGE"; exit 1;; esac done shift `expr $OPTIND - 1` if test $# != 1 ; then echo "$USAGE" exit 1 fi case $1 in [dmf]*) port=`expr $1 : '.\(.*\)'`;; *) port=$1;; esac dev=/dev/ttyd$port odevs="/dev/ttym$port /dev/ttyf$port" if test ! -c "$dev"; then echo "bad port number: $1" exit 1 fi if test ! -d /var/spool/locks -a -d /usr/spool/locks; then LOCKDIR=/usr/spool/locks else LOCKDIR=/var/spool/locks fi LOCKD=$LOCKDIR/LCK..ttyd$port LOCKM=$LOCKDIR/LCK..ttym$port LOCKF=$LOCKDIR/LCK..ttyf$port # uucp wants a 10 byte string LOCKSTR=`expr " $$" : '.*\(..........\)'` LOGFILE=/tmp/fix-modem$$ # use factory defaults, except or including: # Sportster # X4=extended result codes # &B1=fixed speed # &R2=RTS flow control # &H1=CTS flow control # S0=1 answer the phone on 1st ring, =0 do not answer the phone # S13=1 reset on DTR false # S2=128 to disable +++ escape for "security", but this cannot be # saved in NVRAM. # # Courier # The important values are controlled by switches instead of # stored in NVRAM. Fortunately, the factory default and recommended # settings of the switches are right # S13=1 reset on DTR false # s2=128 to disable +++ escape for "security", but this cannot be # saved in NVRAM. # S27.4=1 to disable MNP # S34.1=1 S34.2=1 S34.7=1 to disable the USR proprietary versions # of v.32 and connect to non-USR modems # &K3 turns off compression, which is good when using PPP with # compression on the host case "$model" in SPORT|SPORTSTER) rstcmd='&F' varcmd='X4 &B1 &R2 &H1 S13=1 S2=128' infocmd='I4' model="Sportster" switches="1=up 2=up 3=down 4=up 5=down 6=up 7=up 8=down" ;; COURIER) rstcmd='&F1' varcmd='S13=1 S2=128 S27.4=1 S34.1=1 S34.2=1 S34.7=1 &K3' varcmd='S13=1 S2=128 S27.4=1 &K3' infocmd='I4' model="Courier" switches="1=off 2=off 3=on 4=off 5=on 6=off 7=off 8=on 9=off 10=off" ;; *) echo "unknown model: $model"; exit 1;; esac case "${speed:=38400}" in 115200|57600|38400|19200) ;; *) echo "unknown speed: $speed"; exit 1;; esac # Set S0=1 to answer the phone for pure input. # Do not answer the phone (S0=0) for pure output. # Do not answer the phone by default (S0=0) for combined # input & output, because uugetty will answer it. if test "$out" = 1; then modecmd='S0=0' elif test "$in" = 1; then modecmd='S0=1' else echo "$USAGE" # complain if neither in nor out is set exit 1 fi if test ! -w /dev; then echo "This does not work very well except for the superuser." exit 1 fi # fight the UUCP daemons and others for the port /etc/renice -20 $$ > /dev/null echo echo " If this effort to program the USRobotics \"$model\"" connected to port $port echo " works, you should see a series AT commands and responses." echo " The response to each command should end with 'OK'." echo " The last command should be followed by a list of all of the settings." echo echo " Set the switches to $switches" echo # lock the device by all of its names rm -f $LOCKD $LOCKM $LOCKF echo "$LOCKSTR" > $LOCKD; ln $LOCKD $LOCKM; ln $LOCKD $LOCKF # zap any gettys or other users pids=`/etc/fuser -q $dev $odevs 2>/dev/null` if test ! -z "$pids"; then echo " Stopping processes currently using port $port\n" if test ! -z "$verbose"; then ps -lfp $pids fi kill -1 $pids sleep 2 fi pids="$pids `/etc/fuser -qk $dev $odevs 2>/dev/null`" # re-lock in case the other guy removed our rude lock files rm -f $LOCKD $LOCKM $LOCKF echo "$LOCKSTR" > $LOCKD; ln $LOCKD $LOCKM; ln $LOCKD $LOCKF trap "rm -f $LOCKD $LOCKM $LOCKF $LOGFILE; /etc/fuser -qk $dev $odevs 2>/dev/null; exit 1" 0 1 2 15 # start listening to the modem, after waiting for previous users to # disappear and allow us to open the ttyd* device. # Also keep DTR low in the hope of resetting the modem. while test ! -z "$pids"; do pids=`/etc/fuser -qk $dev $odevs 2>/dev/null` sleep 2 done rm -f $LOGFILE tee $LOGFILE <$dev & stty $speed -echo -icrnl -ixon -ixoff -isig clocal < $dev # Reset things. echo "AT $rstcmd\r\c" > $dev; sleep 1 echo "AT Q0 $varcmd $modecmd $loc\r\c" > $dev; sleep 1 echo "AT &W\r\c" > $dev; sleep 1 echo "AT $infocmd\r\c" > $dev; sleep 1 #prevent message about the death of the listener exec >/dev/null 2>&1