##### HOWTO: Extract the firmware for the mwl8k Linux WLAN driver #####

### HELP-1: https://forum.openwrt.org/viewtopic.php?pid=103243#p103243
### HELP-2: https://forum.openwrt.org/viewtopic.php?pid=110004#p110004
### THREAD: http://marc.info/?t=133551792600004&r=1&w=2

### Install some tools to inspect file containing firmware blob

sudo apt-get install cabextract unshield

### Working directory

mkdir mwl8k
cd mwl8k

### Download c-file (extract firmware) and Windows setup file (incl. firmware)

mkdir files
cd files
wget -O mrv8k_extract_fw.c 'http://marc.info/?l=linux-wireless&m=126540674419330&q=p3'
wget ftp://downloads.netgear.com/files/wn311t_4_2_setup.exe

### Extract firmware blob

mkdir .tmp ../firmware
cabextract -F Disk1/data*.* -d .tmp wn311t_4_2_setup.exe
unshield -g Driver -d .tmp x .tmp/Disk1/data1.cab
gcc -o mrv8k_extract_fw mrv8k_extract_fw.c
./mrv8k_extract_fw .tmp/Driver/netmw145.sys
mv *.fw ../firmware/
rm -r -f .tmp

### Check MD5SUM and rename firmware/helper image files for 8361P/8363

[ Known MD5SUMS for 8361P ]
48c79b085f7f5a590d3dbc15647e519f *fmimage_8XX0.fw
0fe11f415adbbd5e8ca03641705c4a6c *helper_8XX0.fw

cd ../firmware
md5sum -b *.fw
mv fmimage_8XX0.fw fmimage_8361p.fw
mv helper_8XX0.fw helper_8361p.fw
mv fmimage_8XX1.fw fmimage_8363.fw
mv helper_8XX1.fw helper_8363.fw


-dileks // 27-Apr-2012