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_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
"pci_wmac0.eeprom")
        case $board in
        netgear,wndr4700)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 20480 4096
                else
                        ath9k_eeprom_extract "wifi_data" 20480 4096
                        ath9k_patch_firmware_mac $(mtd_get_mac_binary wifi_data 12)
                fi
                ;;
        *)
                ath9k_eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;

"pci_wmac1.eeprom")
        case $board in
        netgear,wndr4700)
                . /lib/upgrade/nand.sh

                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
                        ath9k_ubi_eeprom_extract "caldata" 4096 4096
                else
                        ath9k_eeprom_extract "wifi_data" 4096 4096
                        ath9k_patch_firmware_mac $(mtd_get_mac_binary wifi_data 0)
                fi
                ;;
        *)
                ath9k_eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
esac