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/*
* Copyright © 2013 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_3;
import java.io.*;
import java.util.*;
import java.text.*;
public abstract class AltosEeprom implements AltosStateUpdate {
public int cmd;
public int tick;
public int data8[];
public boolean valid;
public int data8(int i) {
return data8[i];
}
public int data16(int i) {
return ((data8[i] | (data8[i+1] << 8)) << 16) >> 16;
}
public int data24(int i) {
return data8[i] | (data8[i+1] << 8) | (data8[i+2] << 16);
}
public int data32(int i) {
return data8[i] | (data8[i+1] << 8) | (data8[i+2] << 16) | (data8[i+3] << 24);
}
public final static int header_length = 4;
public abstract int record_length();
public void update_state(AltosState state) {
if (cmd == AltosLib.AO_LOG_FLIGHT)
state.set_boost_tick(tick);
else
state.set_tick(tick);
}
public void write(PrintStream out) {
out.printf("%c %04x", cmd, tick);
if (data8 != null) {
for (int i = 0; i < data8.length; i++)
out.printf (" %02x", data8[i]);
}
out.printf ("\n");
}
public String string() {
String s;
s = String.format("%c %04x", cmd, tick);
if (data8 != null) {
for (int i = 0; i < data8.length; i++) {
String d = String.format(" %02x", data8[i]);
s = s.concat(d);
}
}
s = s.concat("\n");
return s;
}
void parse_chunk(AltosEepromChunk chunk, int start) throws ParseException {
cmd = chunk.data(start);
int data_length = record_length() - header_length;
valid = !chunk.erased(start, record_length());
if (valid) {
if (AltosConvert.checksum(chunk.data, start, record_length()) != 0)
throw new ParseException(String.format("invalid checksum at 0x%x",
chunk.address + start), 0);
} else {
cmd = AltosLib.AO_LOG_INVALID;
}
tick = chunk.data16(start+2);
data8 = new int[data_length];
for (int i = 0; i < data_length; i++)
data8[i] = chunk.data(start + header_length + i);
}
void parse_string(String line) {
valid = false;
tick = 0;
cmd = AltosLib.AO_LOG_INVALID;
int data_length = record_length() - header_length;
if (line == null)
return;
try {
String[] tokens = line.split("\\s+");
if (tokens[0].length() == 1) {
if (tokens.length == 2 + data_length) {
cmd = tokens[0].codePointAt(0);
tick = Integer.parseInt(tokens[1],16);
valid = true;
data8 = new int[data_length];
for (int i = 0; i < data_length; i++)
data8[i] = Integer.parseInt(tokens[2 + i],16);
}
}
} catch (NumberFormatException ne) {
}
}
}
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