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set_3g_led() {
grep WRT54G3G /proc/diag/model >/dev/null || return 0
echo "$1" > /proc/diag/led/3g_green
echo "$2" > /proc/diag/led/3g_blue
echo "$3" > /proc/diag/led/3g_blink
}
scan_3g() {
local device
scan_ppp "$@"
config_get device "$1" device
# try to figure out the device if it's invalid
[ -n "$device" -a -e "$device" ] || {
for device in /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/tts/2 /dev/usb/tts/0 /dev/noz0; do
[ -e "$device" ] && {
config_set "$1" device "$device"
break
}
done
}
# enable 3G with the 3G button by default
config_get button "$1" button
[ -z "$button" ] && {
config_set "$1" button 1
}
}
stop_interface_3g() {
set_3g_led 0 0 0
killall gcom >/dev/null 2>/dev/null
}
setup_interface_3g() {
local iface="$1"
local config="$2"
local chat="/etc/chatscripts/3g.chat"
config_get device "$config" device
for module in slhc ppp_generic ppp_async; do
/sbin/insmod $module 2>&- >&-
done
config_get apn "$cfg" apn
config_get service "$cfg" service
config_get pincode "$cfg" pincode
config_get mtu "$cfg" mtu
set_3g_led 1 0 1
# figure out hardware specific commands for the card
case "$service" in
cdma|evdo) chat="/etc/chatscripts/evdo.chat";;
*)
if gcom -d "$device" -s /etc/gcom/getcardinfo.gcom | grep Novatel 2>/dev/null >/dev/null; then
case "$service" in
umts_only) CODE=2;;
gprs_only) CODE=1;;
*) CODE=0;;
esac
mode="AT\$NWRAT=${CODE},2"
else
case "$service" in
umts_only) CODE=1;;
gprs_only) CODE=0;;
*) CODE=3;;
esac
mode="AT_OPSYS=${CODE}"
fi
PINCODE="$pincode" gcom -d "$device" -s /etc/gcom/setpin.gcom || {
echo "$cfg(3g): Failed to set the PIN code."
set_3g_led 0 0 0
return 1
}
MODE="$mode" gcom -d "$device" -s /etc/gcom/setmode.gcom
esac
set_3g_led 1 0 0
config_set "$config" "connect" "${apn:+USE_APN=$apn }/usr/sbin/chat -t5 -f $chat"
start_pppd "$config" \
noaccomp \
nopcomp \
novj \
nobsdcomp \
noauth \
lock \
crtscts \
${mtu:+mtu $mtu mru $mtu} \
115200 "$device"
}
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