// Copyright 2020 Project U-Ray Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package dev.fpga.rapidwright;

import com.xilinx.rapidwright.design.*;
import com.xilinx.rapidwright.device.Site;
import com.xilinx.rapidwright.device.SiteTypeEnum;
import com.xilinx.rapidwright.device.Tile;

import java.io.IOException;

public class allffs {
    public static void main(String[] args) throws IOException {
        Design des = new Design("top", "xczu7ev-ffvc1156-2-e");

        Cell d_iob = des.createAndPlaceIOB("d", PinType.IN , "B1", "LVCMOS33");
        Cell clk_iob = des.createAndPlaceIOB("clk", PinType.IN , "B3", "LVCMOS33");
        Cell q_iob = des.createAndPlaceIOB("q", PinType.OUT , "A2", "LVCMOS33");
        q_iob.getSiteInst().addSitePIP("OUTMUX", "OP");
        Net curr_d = des.createNet("d_IBUF");
        curr_d.connect(d_iob, "O");
        Net clk = des.createNet("clk_IBUF");
        clk.connect(clk_iob, "O");
        int idx = 0;

        for (Tile t : des.getDevice().getAllTiles()) {
            for (Site s : t.getSites()) {
                if (s.getSiteTypeEnum() == SiteTypeEnum.SLICEL || s.getSiteTypeEnum() == SiteTypeEnum.SLICEM) {
                    Cell ff = des.createAndPlaceCell("ff_" + idx, Unisim.FDCE, s.getName() + "/AFF");
                    ff.getEDIFCellInst().addProperty("INIT", "1'b1");
                    clk.connect(ff, "C");
                    clk.addPin(new SitePinInst(false, "CLK1", des.getSiteInstFromSite(s)));
                    curr_d.connect(ff, "D");
                    curr_d.addPin(new SitePinInst(false, "AX", des.getSiteInstFromSite(s)));
                    des.getSiteInstFromSite(s).addSitePIP("FFMUXA1", "BYP");
                    des.getSiteInstFromSite(s).addSitePIP("CLK1INV", "CLK");

                    curr_d = des.createNet("ff_q_" + idx);
                    curr_d.connect(ff, "Q");
                    idx += 1;
                }
            }
        }

        curr_d.connect(q_iob, "I");
        des.routeSites();
        des.writeCheckpoint("rapidwright_test/ffs.dcp");
    }

}