freifunkist-firmware/target/linux/mpc85xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom

#!/bin/sh

FW_FILE="/lib/firmware/$FIRMWARE"

ath9k_eeprom_die() {
	echo "ath9k eeprom: " "$*" >&2
	exit 1
}

ath9k_eeprom_extract() {
	local part=$1
	local offset=$2
	local count=$3
	local mtd

	. /lib/functions.sh
	. /lib/functions/system.sh

	mtd=$(find_mtd_chardev $part)
	[ -n "$mtd" ] || \
		ath9k_eeprom_die "no mtd device found for partition $part"

	dd if=$mtd bs=$offset skip=1 count=1 2>/dev/null | dd of=$FW_FILE bs=$count count=1 2>/dev/null || \
		ath9k_eeprom_die "failed to extract from $mtd"
}

tpl_set_wireless_mac()
{
	local offset=$1
	local mac

	. /lib/functions.sh
	. /lib/functions/system.sh

	mac=$(mtd_get_mac_binary u-boot 326656)
	mac=$(macaddr_add $mac $offset)

	macaddr_2bin $mac | dd bs=1 count=6 seek=2 conv=notrunc of=$FW_FILE 2>/dev/null
}

[ -e $FW_FILE ] && exit 0

. /lib/mpc85xx.sh

board=$(mpc85xx_board_name)

case "$FIRMWARE" in
"pci_wmac0.eeprom")
	case $board in
	tl-wdr4900-v1)
		ath9k_eeprom_extract "caldata" 4096 2048
		tpl_set_wireless_mac 0
		;;
	*)
		ath9k_eeprom_die "board $board is not supported yet"
		;;
	esac
	;;

"pci_wmac1.eeprom")
	case $board in
	tl-wdr4900-v1)
		ath9k_eeprom_extract "caldata" 20480 2048
		tpl_set_wireless_mac -1
		;;
	*)
		ath9k_eeprom_die "board $board is not supported yet"
		;;
	esac
	;;
esac