b43-lp-installer

#!/bin/sh

# b43-lp-installer
# https://github.com/dbb
#
# Requirements: 
# * Broadcom Low Power wireless card
# * Kernel newer than 2.6.32
# * Root permissions
#
# This script installs firmware for supported Broadcom b43 low power devices.
# Most of it was ripped out of the firmware-b43-lpphy-installer Debian
# package, but it is meant for use on other distros.
# 
# A quick-n-dirty way to tell if you need this firmware is to run:
#     lspci | grep LP-PHY
# But a more sophisticated test is included in the script. If you want to 
# install the firmware even if the test fails, just delete the relevant 
# lines.

# check chip
supported=0
pci=`lspci -n | grep -o "14e4:[1234567890abcdef]\+"` || true

if [ -n "$pci" ]; then
	for device in $pci; do
		device_id=`echo $device | cut -d: -f2`
		case $device_id in
                4315)
			supported=1
            echo "Found supported device: $device"
			break
		;;
		esac	
	done
fi

if [ "$supported" = 0 ]; then
	echo "No supported card found."
	echo "Use proper b43 or b43legacy firmware."
	echo "Aborting."
	exit 1
fi


mkdir b43-lp-tmp
cd b43-lp-tmp

if [ -f $( which curl ) ]; then
    curl -LO http://downloads.openwrt.org/sources/broadcom-wl-4.178.10.4.tar.bz2
elif [ -f $( which wget ) ]; then
    wget http://downloads.openwrt.org/sources/broadcom-wl-4.178.10.4.tar.bz2
else
    echo "No downloader found. Please instal curl or wget."
    exit 1
fi


tar xjf broadcom-wl-4.178.10.4.tar.bz2
cd broadcom-wl-4.178.10.4/linux

if [ -d /lib/firmware/b43 ]; then
   echo "Deleting old extracted firmware..."
   rm -rf /lib/firmware/b43
fi
if [ ! -d /lib/firmware/b43 ]; then
   echo "Creating new firmware directory..."
        mkdir -p /lib/firmware/b43
fi

echo "Installing firmware..."
b43-fwcutter -w /lib/firmware wl_apsta.o

echo "Cleaning up..."
cd ..
rm -rf b43-lp-tmp

echo "Finished installing b43 firmware."
exit 0