OpenWrt – Rev 1

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#!/bin/sh

[ -e /lib/firmware/$FIRMWARE ] && exit 0

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

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

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

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

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

ath9k_ubi_eeprom_extract() {
        local part=$1
        local offset=$2
        local count=$3
        local ubidev=$(nand_find_ubi $CI_UBIPART)
        local ubi

        ubi=$(nand_find_volume $ubidev $part)
        [ -n "$ubi" ] || \
                ath9k_eeprom_die "no UBI volume found for $part"

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

ath9k_eeprom_extract_reverse() {
        local part=$1
        local offset=$2
        local count=$3
        local mtd
        local reversed
        local caldata

        mtd=$(find_mtd_chardev "$part")
        reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)

        for byte in $reversed; do
                caldata="\x${byte}${caldata}"
        done

        printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
}

ath9k_patch_firmware_mac() {
        local mac=$1

        [ -z "$mac" ] && return

        macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=2 count=6
}

board=$(board_name)

case "$FIRMWARE" in
"soc_wmac.eeprom")
        case $board in
        c-55|\
        c-60)
                ath9k_eeprom_extract "art" 4096 2048
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary art 0) +1)
                ;;
        fritz4020|\
        fritz450e)
                ath9k_eeprom_extract_reverse "urlader" 5441 1088
                ;;
        mr18)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 4096 2048
                else
                        ath9k_eeprom_extract "odm-caldata" 4096 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi board-config 102) +1)
                ;;
        r6100 | \
        wndr3700v4 | \
        wndr4300)
                ath9k_eeprom_extract "caldata" 4096 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_binary caldata 0)
                ;;
        rambutan)
                ath9k_eeprom_extract "art" 4096 2048
                ;;
        wlr8100)
                ath9k_eeprom_extract "art" 4096 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_ascii u-boot-env "ethaddr")
                ;;
        z1)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 4096 2048
                else
                        ath9k_eeprom_extract "origcaldata" 4096 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi board-config 102) +2)
                ;;
        *)
                ath9k_eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;

"pci_wmac0.eeprom")
        case $board in
        c-55)
                ath9k_eeprom_extract "art" 20480 2048
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary art 0) +2)
                ;;
        fritz300e)
                ath9k_eeprom_extract_reverse "urloader" 5441 1088
                ;;
        mr18)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 20480 2048
                else
                        ath9k_eeprom_extract "odm-caldata" 20480 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi board-config 102) +2)
                ;;
        wndr3700v4 | \
        wndr4300)
                ath9k_eeprom_extract "caldata" 20480 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_binary caldata 12)
                ;;
        z1)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 86016 4096
                else
                        ath9k_eeprom_extract "origcaldata" 86016 4096
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi board-config 102) +3)
                ;;
        *)
                ath9k_eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;

"pci_wmac1.eeprom")
        case $board in
        mr18)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 36864 2048
                else
                        ath9k_eeprom_extract "odm-caldata" 36864 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi board-config 102) +3)
                ;;
        *)
                ath9k_eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
esac