+++ /dev/null
-/*
- * Copyright © 2010 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.
- */
-
-/*
- * Deal with TeleDongle on a serial port
- */
-
-package altosui;
-
-import java.lang.*;
-import java.io.*;
-import java.util.concurrent.*;
-import java.util.*;
-
-import libaltosJNI.*;
-
-/*
- * This class reads from the serial port and places each received
- * line in a queue. Dealing with that queue is left up to other
- * threads.
- */
-
-public class AltosSerial implements Runnable {
-
- static List<String> devices_opened = Collections.synchronizedList(new LinkedList<String>());
-
- AltosDevice device;
- SWIGTYPE_p_altos_file altos;
- LinkedList<LinkedBlockingQueue<AltosLine>> monitors;
- LinkedBlockingQueue<AltosLine> reply_queue;
- Thread input_thread;
- String line;
- byte[] line_bytes;
- int line_count;
- boolean monitor_mode;
-
- public void run () {
- int c;
-
- try {
- for (;;) {
- c = libaltos.altos_getchar(altos, 0);
- if (Thread.interrupted())
- break;
- if (c == libaltosConstants.LIBALTOS_ERROR) {
- for (int e = 0; e < monitors.size(); e++) {
- LinkedBlockingQueue<AltosLine> q = monitors.get(e);
- q.put(new AltosLine());
- }
- reply_queue.put (new AltosLine());
- break;
- }
- if (c == libaltosConstants.LIBALTOS_TIMEOUT)
- continue;
- if (c == '\r')
- continue;
- synchronized(this) {
- if (c == '\n') {
- if (line_count != 0) {
- try {
- line = new String(line_bytes, 0, line_count, "UTF-8");
- } catch (UnsupportedEncodingException ue) {
- line = "";
- for (int i = 0; i < line_count; i++)
- line = line + line_bytes[i];
- }
- if (line.startsWith("VERSION") || line.startsWith("CRC")) {
- for (int e = 0; e < monitors.size(); e++) {
- LinkedBlockingQueue<AltosLine> q = monitors.get(e);
- q.put(new AltosLine (line));
- }
- } else {
-// System.out.printf("GOT: %s\n", line);
- reply_queue.put(new AltosLine (line));
- }
- line_count = 0;
- line = "";
- }
- } else {
- if (line_bytes == null) {
- line_bytes = new byte[256];
- } else if (line_count == line_bytes.length) {
- byte[] new_line_bytes = new byte[line_count * 2];
- System.arraycopy(line_bytes, 0, new_line_bytes, 0, line_count);
- line_bytes = new_line_bytes;
- }
- line_bytes[line_count] = (byte) c;
- line_count++;
- }
- }
- }
- } catch (InterruptedException e) {
- }
- }
-
- public void flush_output() {
- if (altos != null)
- libaltos.altos_flush(altos);
- }
-
- public void flush_input() {
- flush_output();
- boolean got_some;
- do {
- try {
- Thread.sleep(100);
- } catch (InterruptedException ie) {
- }
- got_some = !reply_queue.isEmpty();
- synchronized(this) {
- if (!"VERSION".startsWith(line) &&
- !line.startsWith("VERSION"))
- line = "";
- reply_queue.clear();
- }
- } while (got_some);
- }
-
- public String get_reply() throws InterruptedException {
- flush_output();
- AltosLine line = reply_queue.take();
- return line.line;
- }
-
- public String get_reply(int timeout) throws InterruptedException {
- flush_output();
- AltosLine line = reply_queue.poll(timeout, TimeUnit.MILLISECONDS);
- if (line == null)
- return null;
- return line.line;
- }
-
- public void add_monitor(LinkedBlockingQueue<AltosLine> q) {
- set_monitor(true);
- monitors.add(q);
- }
-
- public void remove_monitor(LinkedBlockingQueue<AltosLine> q) {
- monitors.remove(q);
- if (monitors.isEmpty())
- set_monitor(false);
- }
-
- public void close() {
- if (altos != null) {
- libaltos.altos_close(altos);
- }
- if (input_thread != null) {
- try {
- input_thread.interrupt();
- input_thread.join();
- } catch (InterruptedException e) {
- }
- input_thread = null;
- }
- if (altos != null) {
- libaltos.altos_free(altos);
- altos = null;
- }
- synchronized (devices_opened) {
- devices_opened.remove(device.getPath());
- }
- }
-
- public void putc(char c) {
- if (altos != null)
- libaltos.altos_putchar(altos, c);
- }
-
- public void print(String data) {
-// System.out.printf("\"%s\" ", data);
- for (int i = 0; i < data.length(); i++)
- putc(data.charAt(i));
- }
-
- public void printf(String format, Object ... arguments) {
- print(String.format(format, arguments));
- }
-
- private void open() throws FileNotFoundException, AltosSerialInUseException {
- synchronized (devices_opened) {
- if (devices_opened.contains(device.getPath()))
- throw new AltosSerialInUseException(device);
- devices_opened.add(device.getPath());
- }
- altos = libaltos.altos_open(device);
- if (altos == null) {
- close();
- throw new FileNotFoundException(device.toShortString());
- }
- input_thread = new Thread(this);
- input_thread.start();
- print("~\nE 0\n");
- set_monitor(false);
- flush_output();
- }
-
- public void set_radio() {
- set_channel(AltosPreferences.channel(device.getSerial()));
- set_callsign(AltosPreferences.callsign());
- }
-
- public void set_channel(int channel) {
- if (altos != null) {
- if (monitor_mode)
- printf("m 0\nc r %d\nm 1\n", channel);
- else
- printf("c r %d\n", channel);
- flush_output();
- }
- }
-
- void set_monitor(boolean monitor) {
- monitor_mode = monitor;
- if (altos != null) {
- if (monitor)
- printf("m 1\n");
- else
- printf("m 0\n");
- flush_output();
- }
- }
-
- public void set_callsign(String callsign) {
- if (altos != null) {
- printf ("c c %s\n", callsign);
- flush_output();
- }
- }
-
- public AltosSerial(AltosDevice in_device) throws FileNotFoundException, AltosSerialInUseException {
- device = in_device;
- line = "";
- monitor_mode = false;
- monitors = new LinkedList<LinkedBlockingQueue<AltosLine>> ();
- reply_queue = new LinkedBlockingQueue<AltosLine> ();
- open();
- }
-}
projects / fw / altos / blobdiff