/* * Copyright © 2011 Keith Packard * * 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; version 2 of the License. * * 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, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ package altosui; import java.io.*; import java.util.*; import java.text.*; import java.util.concurrent.*; public class AltosEepromChunk { static final int chunk_size = 256; static final int per_line = 8; public int data[]; public int address; public ParseException parse_exception = null; int[] ParseHex(String line) { String[] tokens = line.split("\\s+"); int[] array = new int[tokens.length]; for (int i = 0; i < tokens.length; i++) try { array[i] = Integer.parseInt(tokens[i], 16); } catch (NumberFormatException ne) { return null; } return array; } int data(int offset) { return data[offset]; } int data16(int offset) { return data[offset] | (data[offset + 1] << 8); } public AltosEepromChunk(AltosSerial serial_line, int block) throws TimeoutException, InterruptedException { int offset; data = new int[chunk_size]; address = block * chunk_size; serial_line.flush_input(); serial_line.printf("e %x\n", block); for (offset = 0; offset < chunk_size; offset += per_line) { try { String line = serial_line.get_reply(5000); if (line == null) throw new TimeoutException(); int[] values = ParseHex(line); if (values == null || values.length != per_line + 1) throw new ParseException(String.format("invalid line %s", line), 0); if (values[0] != offset) throw new ParseException(String.format("data address out of sync at 0x%x", address + offset), 0); for (int i = 0; i < per_line; i++) data[offset + i] = values[1 + i]; } catch (ParseException pe) { for (int i = 0; i < per_line; i++) data[offset + i] = 0xff; if (parse_exception == null) parse_exception = pe; } } } }