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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_10;
import java.io.*;
public class AltosSelfFlash extends AltosProgrammer {
File file;
FileInputStream input;
AltosHexfile image;
AltosLink link;
boolean aborted;
AltosFlashListener listener;
AltosRomconfig rom_config;
void action(String s, int percent) {
if (listener != null && !aborted)
listener.position(s, percent);
}
void action(int part, int total) {
int percent = 100 * part / total;
action(String.format("%d/%d (%d%%)",
part, total, percent),
percent);
}
byte[] read_memory(long addr, int len) throws InterruptedException, IOException {
int b;
byte[] data = new byte[len];
for (int offset = 0; offset < len; offset += 0x100) {
link.printf("R %x\n", addr + offset);
byte[] reply = link.get_binary_reply(5000, 0x100);
if (reply == null)
throw new IOException("Read device memory timeout");
for (b = 0; b < len; b++)
data[b+offset] = reply[b];
}
return data;
}
void write_memory(long addr, byte[] data, int start, int len) {
int b;
link.printf("W %x\n", addr);
link.flush_output();
for (b = 0; b < len; b++)
link.putchar(data[start + b]);
for (; b < 0x100; b++)
link.putchar((byte) 0xff);
}
void reboot() {
link.printf("a\n");
link.flush_output();
}
public void flash() {
try {
if (!check_rom_config())
throw new IOException("Invalid rom config settings");
/*
* Store desired config values into image
*/
rom_config.write(image);
int remain = image.data.length;
long flash_addr = image.address;
int image_start = 0;
action("start", 0);
action(0, image.data.length);
while (remain > 0 && !aborted) {
int this_time = remain;
if (this_time > 0x100)
this_time = 0x100;
if (link != null) {
/* write the data */
write_memory(flash_addr, image.data, image_start, this_time);
byte[] check = read_memory(flash_addr, this_time);
for (int i = 0; i < this_time; i++)
if (check[i] != image.data[image_start + i])
throw new IOException(String.format("Flash write failed at 0x%x (%02x != %02x)",
image.address + image_start + i,
check[i], image.data[image_start + i]));
} else {
Thread.sleep(100);
}
remain -= this_time;
flash_addr += this_time;
image_start += this_time;
action(image.data.length - remain, image.data.length);
}
if (!aborted) {
action("done", 100);
}
close();
} catch (IOException ie) {
action(ie.getMessage(), -1);
abort();
} catch (InterruptedException ie) {
abort();
}
}
public void close() {
if (link != null) {
reboot();
try {
link.close();
} catch (InterruptedException ie) {
}
link = null;
}
}
synchronized public void abort() {
aborted = true;
close();
}
private AltosHexfile get_rom() throws InterruptedException {
try {
int base = AltosRomconfig.fetch_base(image);
int bounds = AltosRomconfig.fetch_bounds(image);
byte[] data = read_memory(base, bounds - base);
AltosHexfile hexfile = new AltosHexfile(data, base);
hexfile.add_symbols(image);
return hexfile;
} catch (AltosNoSymbol none) {
return null;
} catch (IOException ie) {
return null;
}
}
public boolean check_rom_config() throws InterruptedException {
if (link == null) {
return true;
}
if (rom_config == null) {
AltosHexfile hexfile = get_rom();
if (hexfile != null)
rom_config = new AltosRomconfig(hexfile);
}
return rom_config != null && rom_config.valid();
}
public void set_romconfig (AltosRomconfig romconfig) {
rom_config = romconfig;
}
public AltosRomconfig romconfig() throws InterruptedException {
if (!check_rom_config())
return null;
return rom_config;
}
public AltosSelfFlash(File file, AltosLink link, AltosFlashListener listener)
throws IOException, FileNotFoundException, InterruptedException {
this.file = file;
this.link = link;
this.listener = listener;
input = new FileInputStream(file);
image = new AltosHexfile(input);
}
}
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