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IP POWER PAGE 31 OF 32
out_retries=3
in_udelay=100000
in_retries=10
port=$1
outlets=$2
cmd=$3
tmpfile=/tmp/tmp.$$
if [[ -z "$port" ]] || [[ -z "$outlets" ]] || [[ -z "$cmd" ]]; then
appname=`basename $0`
echo "Usage: $appname <port> \"<outlet> [outlet..]\" on|off|status"
exit 1
fi
function ipp_chat () {
out=$1
in=$2
cat "$port" > $tmpfile &
cat_pid=$!
trap "rm $tmpfile; kill $cat_pid" EXIT
for (( i=0; i < $out_retries; i++ )); do
for (( j = 0 ; j < ${#out} ; j++ )); do
usleep $out_udelay
echo -n ${out:$j:1} > $port
done
echo > $port
for (( j=0; j < $in_retries; j++ )); do
usleep $in_udelay
line=`grep "$in" "$tmpfile"`
if [[ -n "$line" ]]; then
break 2
fi
done
done
rm $tmpfile
kill $cat_pid
if [[ -n "$line" ]]; then
echo $line
else
echo "Command failed (${out})"
exit 1
fi
}
# Suppress error messages from the shell
exec 2> /dev/null
# Set up the serial port for the IP Power
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IP POWER PAGE 32 OF 32
stty
1400:4:cbe:a30:3:1c:7f:15:4:0:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:
0:0:0 < "$port"
# Enable serial command mode
ipp_chat "0\\ADEBUG9258\\Z" "IP9258 DEBUG ON" &> /dev/null
# Get current status
status_nibble=`ipp_chat "0\\Ap06\\Z" "p.*6:" | sed 's,.*p.*6:.\(.\).*,\1,g'`
#
# Send the command, the least significant bit is port 1, the most significant
# is port 4. A value of 0 is on, 1 is off.
#
outlet_mask=0
for o in $outlets; do
outlet_bit=$(( 1<< ${o}-1 ))
outlet_mask=$(( outlet_mask | $outlet_bit ))
done
status_nibble=`printf %d 0x${status_nibble}`
if [[ "$cmd" == "on" ]]; then
echo "Powering on outlet $outlets"
status_nibble=`printf %X $(( $status_nibble & ~${outlet_mask} ))`
ipp_chat "0\\AP06F${status_nibble}\\Z" "P.*6=F${status_nibble}" &>
/dev/null
echo "Outlet $outlets powered on"
elif [[ "$cmd" == "off" ]]; then
echo "Powering off outlet $outlets"
status_nibble=`printf %X $(( $status_nibble | ${outlet_mask} ))`
ipp_chat "0\\AP06F${status_nibble}\\Z" "P.*6=F${status_nibble}" &>
/dev/null
echo "Outlet $outlets powered off"
else
for o in ${outlets}; do
outlet_bit=$(( 1<< ${o}-1 ))
echo -n "Outlet $o is "
if [[ $(( $status_nibble & $outlet_bit )) -eq $outlet_bit ]]; then
echo "off"
else
echo "on"
fi
done
fi
# Disable serial command mode
ipp_chat "0\\ADEBUG0FF\\Z" "IP9258 DEBUG OFF" &> /dev/null
exit 0
