#!/bin/sh -Cefu


set -Cefu


driver="`echo \"$1\" | tr '[:upper:]' '[:lower:]'`"
pin="`echo \"$2\" | tr '[:upper:]' '[:lower:]'`"

bank_name="`echo \"$pin\" | tr -cd '[:lower:]'`"
pin_num="`echo \"$pin\" | tr -cd '[:digit:]'`"

bank_num=
fdt_compat=


case "$bank_name"
in
	pa) bank_num=0 ;;
	pc) bank_num=2 ;;
	pd) bank_num=3 ;;
	pe) bank_num=4 ;;
	pf) bank_num=5 ;;
	pg) bank_num=6 ;;
	*)  exit 1     ;;
esac


case "$driver"
in
	owc)     fdt_compat=w1-gpio ;;
	gpioths) fdt_compat=dht11   ;;
	*)       exit 1             ;;
esac


dtso_file="$driver-$pin.dtso"
dtbo_file="$driver-$pin.dtbo"


rm -f "$dtso_file"


cat > "$dtso_file" << EOF
/dts-v1/;

/  {

	compatible = "friendlyarm,nanopi-neo";
	fragment@0 {

		target-path = "/";
		__overlay__ {

			$driver-$pin {

				compatible = "$fdt_compat";
				gpios = <0x1f 0x$bank_num 0x$pin_num 0x0>;
			};
		};
	};
};
EOF


dtc -o "$dtbo_file" "$dtso_file"