#!/bin/bash
set -e

MYPATH=`realpath $0`
MYPATH=`dirname ${MYPATH}`

source ${MYPATH}/env
echo "Writing bitstream ..."

FRM2BIT=""
if [ ! -z ${FRAMES2BIT} ]; then
	FRM2BIT="--frm2bit ${FRAMES2BIT}"
fi

OPTS=d:f:b:p:
LONGOPTS=device:,fasm:,bit:,part:

PARSED_OPTS=`getopt --options=${OPTS} --longoptions=${LONGOPTS} --name $0 -- $@`
eval set -- ${PARSED_OPTS}

DEVICE=""
FASM=""
BIT=""
PART=xc7a35tcpg236-1

while true; do
	case "$1" in
		-d|--device)
			DEVICE=$2
			shift 2
			;;
		-p|--part)
			PART=$2
			shift 2
			;;
		-f|--fasm)
			FASM=$2
			shift 2
			;;
		-b|--bit)
			BIT=$2
			shift 2
			;;
		--)
			break
			;;
	esac
done

DATABASE_DIR=${DATABASE_DIR:=$(prjxray-config)}

if [ -z $DEVICE ]; then
	# Try to find device name. Accept only when exactly one is found
	PART_DIRS=(${DATABASE_DIR}/*/${PART})
	if [ ${#PART_DIRS[@]} -eq 1 ]; then
		DEVICE=$(basename $(dirname "${PART_DIRS[0]}"))
	else
		echo "Please provide device name"
		exit 1
	fi
fi

DBROOT=`realpath ${DATABASE_DIR}/${DEVICE}`

if [ -z $FASM ]; then
	echo "Please provide fasm file name"
	exit 1
fi

if [ -z $BIT ]; then
	echo "Please provide bit file name"
	exit 1
fi

xcfasm --db-root ${DBROOT} --part ${PART} --part_file ${DBROOT}/${PART}/part.yaml --sparse --emit_pudc_b_pullup --fn_in ${FASM} --bit_out ${BIT} ${FRM2BIT}