X200 WWAN ready

裝上Ubuntu Jaunty 9.04的ThinkPad X200要怎麼連上HSDPA(3.5G)網路呢？

啊就是裝上Ericsson 3507G，升級WWAN firmware之後就可以自然而然連上HSDPA network了。

有沒有這麼簡單啊？(最好是就這麼簡單...)

有興趣裝起來用的各位，還是認命的繼續看下去吧...
第一件事，我想要定義 Fn+F6 就是WAN的開關：

1. 在 /etc/acpi/events/ 裡面新增 ibm-wan

內容如下：

# /etc/acpi/events/ibmwireless
# This is called when the user presses the wireless button and calls
# /etc/acpi/wireless.sh for further processing.

event=ibm/hotkey HKEY 00000080 00001006
action=/etc/acpi/ibm-wan.sh

2. 在 /etc/acpi/ 新增 ibm-wan.sh

#!/bin/sh

test -f /usr/share/acpi-support/state-funcs || exit 0

# Find and toggle wireless of bluetooth devices on ThinkPads

. /usr/share/acpi-support/state-funcs

WAN=/proc/acpi/ibm/wan
CONTROL_DEVICE=/dev/ttyACM1
GPS_DEVICE=/dev/ttyACM2

if [ -r $WAN ]; then
grep -q disabled $WAN
wan_state=$?
fi

# Note that this always alters the state of the wireless!
toggleAllWirelessStates;

# Sequence is Both on, Bluetooth only, Wireless only, Both off
if ! isAnyWirelessPoweredOn; then
# Wireless was turned off
if [ -w $WAN ]; then
if [ "$wan_state" = 0 ]; then
echo enable > $WAN;
echo "5 blink" > /proc/acpi/ibm/led
while [ ! -c $CONTROL_DEVICE ]; do sleep 0.5; echo -n "."; done
/usr/sbin/chat -v "" "AT+CFUN=1" "+PACSP0" "AT" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
# /usr/sbin/chat -v "" "AT*E2GPSCTL=1,5,1\r" "OK" "AT*E2GPSNPD\r" "GPGGA" > $GPS_DEVICE < $GPS_DEVICE
# gpsd $GPS_DEVICE
else
# killall gpsd
/usr/sbin/chat -v "" "AT+CFUN=4" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
echo disable > $WAN
fi
fi
fi

有仔細看的高手們，可以選擇順便把GPS turn on。但是我發現WWAN和GPS stream一起跑會降低穩定性。

3. (optional) 雞肋的GPS功能開啟：

煩請在 /usr/local/bin/ 或是 ~/bin/ 新增 ericsson3507g

$ chmod 755 ericsson3507g

#!/bin/bash

CONTROL_DEVICE=/dev/ttyACM1
GPS_DEVICE=/dev/ttyACM2

case $1 in
(on)
echo -n "Powering up F3507g card.."
echo 1 > /sys/devices/platform/thinkpad_acpi/wwan_enable
while [ ! -c $CONTROL_DEVICE ]; do sleep 0.5; echo -n "."; done
/usr/sbin/chat -v "" "AT+CFUN=1" "+PACSP0" "AT" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
echo "done"
;;
(off)
echo -n "Powering down F3507g card.."
killall gpsd
/usr/sbin/chat -v "" "AT+CFUN=4" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
echo 0 > /sys/devices/platform/thinkpad_acpi/wwan_enable
while [ -c $CONTROL_DEVICE ]; do sleep 0.5; echo -n "."; done
echo "done"
;;
(gpson)
echo -n "Starting NMEA stream on $GPS_DEVICE..."
/usr/sbin/chat -v "" "AT*E2GPSCTL=1,3,1\r" "OK" "AT*E2GPSNPD\r" "GPGGA" > $GPS_DEVICE < $GPS_DEVICE
gpsd $GPS_DEVICE
echo " done"
;;
*) echo "Usage: ericsson3507g on|off|gpson"
;;
esac

然後請安裝 gpsd, tangogps:
$ sudo aptitude install gpsd gpsd-client tangogps

以上全部搞定之後，重新啟動 acpid, acpi-support。最白痴的方法就是重開機。比較 geeky 的辦法：

$ sudo /etc/init.d/acpid restart
$ sudo /etc/init.d/acpi-support restart