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Merge pull request #345 from byuccl/xdcConstraintInterface
XDC constraints interface & XDC Constraint Package Pin
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src/main/java/edu/byu/ece/rapidSmith/interfaces/vivado/XdcConstraintsInterface.java
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| /* | ||
| * Copyright (c) 2018 Brigham Young University | ||
| * | ||
| * This file is part of the BYU RapidSmith Tools. | ||
| * | ||
| * BYU RapidSmith Tools is free software: you may redistribute it | ||
| * and/or modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation, either version 3 of | ||
| * the License, or (at your option) any later version. | ||
| * | ||
| * BYU RapidSmith Tools is distributed in the hope that it will be | ||
| * useful, but WITHOUT ANY WARRANTY; without even the implied warranty | ||
| * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * A copy of the GNU General Public License is included with the BYU | ||
| * RapidSmith Tools. It can be found at doc/LICENSE.GPL3.TXT. You may | ||
| * also get a copy of the license at <http://www.gnu.org/licenses/>. | ||
| */ | ||
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| package edu.byu.ece.rapidSmith.interfaces.vivado; | ||
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| import edu.byu.ece.rapidSmith.design.subsite.*; | ||
| import edu.byu.ece.rapidSmith.device.*; | ||
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| import java.io.*; | ||
| import java.time.LocalDateTime; | ||
| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| /** | ||
| * This class is used for parsing XDC constraint files and adding them into a RS2 design. | ||
| * | ||
| * @author Dallon Glick, Dr. Jeffrey Goeders, Thomas Townsend | ||
| * | ||
| */ | ||
| public class XdcConstraintsInterface { | ||
| private final CellDesign design; | ||
| private final Device device; | ||
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| public XdcConstraintsInterface(CellDesign design, Device device) { | ||
| this.design = design; | ||
| this.device = device; | ||
| } | ||
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| /** | ||
| * Parses a single line from constraints.xdc, makes an XdcConstraint, and adds it to the design. | ||
| * @param line the constraint line to parse | ||
| */ | ||
| private void parseConstraintsLine(String line) { | ||
| int optIdx = line.indexOf(" "); | ||
| int cmntIdx = line.indexOf("#"); | ||
| String command = line.substring(0, optIdx); | ||
| String options = (cmntIdx != -1) ? line.substring(optIdx + 1, cmntIdx).trim() : line.substring(optIdx + 1).trim(); | ||
| String comment = (cmntIdx != -1) ? line.substring(cmntIdx) : null; | ||
| design.addVivadoConstraint(new XdcConstraint(command, options, comment)); | ||
| } | ||
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| /** | ||
| * Loads Vivado constraints into the specified {@link CellDesign}. For now, these constraints are | ||
| * loaded as two strings, a command and a list of arguments. For package pin constraints, the pin and corresponding | ||
| * port is saved. Otherwise, there is no attempt right now to intelligently handle these constraints, and they are | ||
| * included so the user has access to them. | ||
| * TODO: Update how we handle constraints files to make them easier to move | ||
| * @param xdcFile constraints.xdc file | ||
| * @throws IOException | ||
| */ | ||
| public void parseConstraintsXDC(String xdcFile) throws IOException { | ||
| LineNumberReader br = new LineNumberReader(new BufferedReader(new FileReader(xdcFile))); | ||
| String line; | ||
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| while ((line = br.readLine()) != null) { | ||
| String trimmed = line.trim(); | ||
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| // Skip empty and comment lines | ||
| if (trimmed.length() < 1 || trimmed.startsWith("#")) | ||
| continue; | ||
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| parseConstraintsLine(trimmed); | ||
| } | ||
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| br.close(); | ||
| } | ||
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| /** | ||
| * Reads the Vivado constraints from the {@link CellDesign} and creates a | ||
| * constraints.xdc file representing the constraints. The file is written to the newly | ||
| * created TINCR checkpoint. | ||
| * | ||
| * @param xdcOut Constraints.xdc file path | ||
| * @throws IOException | ||
| */ | ||
| public void writeConstraintsXdc(String xdcOut) throws IOException { | ||
| try (BufferedWriter fileout = new BufferedWriter (new FileWriter(xdcOut))) { | ||
| LocalDateTime time = LocalDateTime.now(); | ||
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| fileout.write(String.format("##############################################################\n" | ||
| + "# Generated by RapidSmith v.2.0 on %02d/%02d/%02d at %02d:%02d:%02d\n" | ||
| + "##############################################################\n\n", | ||
| time.getMonthValue(), time.getDayOfMonth(), time.getYear(), time.getHour(), time.getMinute(), time.getSecond())); | ||
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| if (design.getVivadoConstraints() != null) { | ||
| for (XdcConstraint constraint : design.getVivadoConstraints()) { | ||
| fileout.write(constraint + "\n"); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |