+platform_do_upgrade_compex() {
+ local fw_file=$1
+ local fw_part=$PART_NAME
+ local fw_mtd=$(find_mtd_part $fw_part)
+ local fw_length=0x$(dd if="$fw_file" bs=2 skip=1 count=4 2>/dev/null)
+ local fw_blocks=$(($fw_length / 65536))
+
+ if [ -n "$fw_mtd" ] && [ ${fw_blocks:-0} -gt 0 ]; then
+ local append=""
+ [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+
+ sync
+ dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \
+ mtd $append write - "$fw_part"
+ fi
+}
+
+alfa_check_image() {
+ local magic_long="$(get_magic_long "$1")"
+ local fw_part_size=$(mtd_get_part_size firmware)
+
+ case "$magic_long" in
+ "27051956")
+ [ "$fw_part_size" != "16318464" ] && {
+ echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
+ return 1
+ }
+ ;;
+
+ "68737173")
+ [ "$fw_part_size" != "7929856" ] && {
+ echo "Invalid image magic \"$magic_long\" for $fw_part_size bytes"
+ return 1
+ }
+ ;;
+ esac
+
+ return 0
+}
+