Add support for lattice diamond .bit file

latticeBitParser.cpp

@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2019 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
+ *
+ * This program is free software: you can 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.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+
+#include <algorithm>
+#include <functional>
+#include <cctype>
+#include <iostream>
+#include <locale>
+
+#include "latticeBitParser.hpp"
+
+using namespace std;
+
+LatticeBitParser::LatticeBitParser(const string &filename, bool verbose):
+	ConfigBitstreamParser(filename, ConfigBitstreamParser::BIN_MODE, verbose),
+	_attribs(), _endHeader(0)
+{}
+
+LatticeBitParser::~LatticeBitParser()
+{
+}
+
+void LatticeBitParser::displayHeader()
+{
+	cout << "Lattice bitstream header infos" << endl;
+	for (auto it = _attribs.begin(); it != _attribs.end(); it++) {
+		cout << (*it).first << ": " << (*it).second << endl;
+	}
+}
+
+int LatticeBitParser::parseHeader()
+{
+	/* end is wrong detected
+	 * 3B is a command AFTER header
+	 */
+
+	int ret = 1;
+	int currPos = _fd.tellg();
+	uint32_t dummy32 = 0, dummyPrev = 0;
+	do {
+		dummyPrev = dummy32;
+		_fd.read(reinterpret_cast<char *>(&dummy32), sizeof(uint32_t));
+		if (_fd.eof()) {
+			printf("End of file without header end\n");
+			return EXIT_FAILURE;
+		}
+	} while (dummyPrev != 0xBDffffff && dummy32 != 0x3BFFFFB3);
+	_endHeader = _fd.tellg();
+	char t;
+	_fd.read(&t, sizeof(char));
+	printf("%02x\n", t);
+	_fd.seekg(_endHeader, _fd.beg);
+	/* -8 => 2 * 4 byte for pattern
+	 */
+	int headerLength = _endHeader - currPos -8;
+	_endHeader-=8;  // pattern is included to data to send
+	_fd.seekg(currPos, _fd.beg);
+
+	char buffer[headerLength];
+	_fd.read(buffer, sizeof(char) * headerLength);
+
+	int i = 0;
+	while (i < headerLength) {
+		string buff(buffer+i);
+		i+= buff.size() + 1;
+		int pos = buff.find_first_of(':', 0);
+		if (pos == -1)  // useless
+			continue;
+		string key(buff.substr(0, pos));
+		string val(buff.substr(pos+1, buff.size()));
+		int startPos = val.find_first_not_of(" ");
+		int endPos = val.find_last_not_of(" ")+1;
+		_attribs[key] = val.substr(startPos, endPos).c_str();
+	}
+
+	return ret;
+}
+
+int LatticeBitParser::parse()
+{
+	uint8_t dummy[2];
+
+	/* bit file start with 0xff00 */
+	_fd.read(reinterpret_cast<char*>(&dummy), 2*sizeof(uint8_t));
+	if (dummy[0] != 0xff || dummy[1] != 0x00) {
+		printf("Wrong File %02x%02x\n", dummy[0], dummy[1]);
+		return EXIT_FAILURE;
+	}
+
+	/* until 0xFFFFBDB3 0xFFFF */
+	parseHeader();
+
+	/* read All data */
+	_fd.seekg(_endHeader, _fd.beg);
+	char buffer[_file_size];
+	int end = _file_size-_endHeader;
+	_fd.read(buffer, end);
+
+	for (int i = 0; i < end; i++)
+		_bit_data+=(buffer[i]);
+
+	_bit_length = _bit_data.size() * 8;
+	return 0;
+}

latticeBitParser.hpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2019 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
+ *
+ * This program is free software: you can 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.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef LATTICEBITPARSER_HPP_
+#define LATTICEBITPARSER_HPP_
+
+#include <iostream>
+#include <fstream>
+#include <map>
+#include <string>
+
+#include "configBitstreamParser.hpp"
+
+class LatticeBitParser: public ConfigBitstreamParser {
+	public:
+		LatticeBitParser(const std::string &filename, bool verbose = false);
+		~LatticeBitParser();
+		int parse() override;
+		void displayHeader();
+
+	private:
+		int parseHeader();
+		std::map<std::string, std::string> _attribs;
+		int _endHeader;
+};
+
+#endif  // LATTICEBITPARSER_HPP_