-/*
- * Copyright © 2011 Keith Packard <keithp@keithp.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; 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 org.altusmetrum.AltosLib;
-
-import java.io.*;
-import java.util.*;
-import java.text.*;
-import java.util.concurrent.*;
-
-public class AltosEepromChunk {
-
- public static final int chunk_size = 256;
- public 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;
- }
-
- public int data(int offset) {
- return data[offset];
- }
-
- public int data16(int offset) {
- return data[offset] | (data[offset + 1] << 8);
- }
-
- public int data32(int offset) {
- return data[offset] | (data[offset + 1] << 8) |
- (data[offset+2] << 16) | (data[offset+3] << 24);
- }
-
- public boolean erased(int start, int len) {
- for (int i = 0; i < len; i++)
- if (data[start+i] != 0xff)
- return false;
- return true;
- }
-
- public AltosEepromChunk(AltosLink link, int block, boolean flush)
- throws TimeoutException, InterruptedException {
-
- int offset;
-
- data = new int[chunk_size];
- address = block * chunk_size;
- if (flush)
- link.flush_input();
- link.printf("e %x\n", block);
-
- for (offset = 0; offset < chunk_size; offset += per_line) {
- try {
- String line = link.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;
- }
- }
- }
-}
\ No newline at end of file