+/*
+ * 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 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.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;
+ }
+ }
+ }
+}
\ No newline at end of file
projects / fw / altos / commitdiff