3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | import android.hardware.usb.UsbConstants;
25 | import android.hardware.usb.UsbDevice;
26 | import android.hardware.usb.UsbDeviceConnection;
27 | import android.hardware.usb.UsbEndpoint;
28 | import android.hardware.usb.UsbRequest;
29 | import android.util.Log;
30 |
31 | import com.hoho.android.usbserial.util.HexDump;
32 |
33 | import java.io.IOException;
34 | import java.nio.ByteBuffer;
35 | import java.util.Collections;
36 | import java.util.LinkedHashMap;
37 | import java.util.List;
38 | import java.util.Map;
39 |
40 | /**
41 | * A {@link CommonUsbSerialPort} implementation for a variety of FTDI devices
42 | *
43 | * This driver is based on libftdi, and is
45 | * copyright and subject to the following terms:
46 | *
47 | *
48 | * Copyright (C) 2003 by Intra2net AG
49 | *
50 | * This program is free software; you can redistribute it and/or modify
51 | * it under the terms of the GNU Lesser General Public License
52 | * version 2.1 as published by the Free Software Foundation;
53 | *
54 | * opensource@intra2net.com
55 | * http://www.intra2net.com/en/developer/libftdi
56 | *
57 | *
58 | *
59 | *
60 | * Some FTDI devices have not been tested; see later listing of supported and
61 | * unsupported devices. Devices listed as "supported" support the following
62 | * features:
63 | *
64 | * - Read and write of serial data (see
65 | * {@link CommonUsbSerialPort#read(byte[], int)} and
66 | * {@link CommonUsbSerialPort#write(byte[], int)}.
67 | * - Setting serial line parameters (see
68 | * {@link CommonUsbSerialPort#setParameters(int, int, int, int)}.
69 | *
70 | *
71 | *
72 | * Supported and tested devices:
73 | *
74 | * - {@value DeviceType#TYPE_R}
75 | *
76 | *
77 | *
78 | * Unsupported but possibly working devices (please contact the author with
79 | * feedback or patches):
80 | *
81 | * - {@value DeviceType#TYPE_2232C}
82 | * - {@value DeviceType#TYPE_2232H}
83 | * - {@value DeviceType#TYPE_4232H}
84 | * - {@value DeviceType#TYPE_AM}
85 | * - {@value DeviceType#TYPE_BM}
86 | *
87 | *
88 | *
89 | * @author mike wakerly (opensource@hoho.com)
90 | * @see USB Serial
91 | * for Android project page
92 | * @see FTDI Homepage
93 | * @see libftdi
94 | */
95 | public class FtdiSerialDriver implements UsbSerialDriver {
96 |
97 | private final UsbDevice mDevice;
98 | private final UsbSerialPort mPort;
99 |
100 | /**
101 | * FTDI chip types.
102 | */
103 | private static enum DeviceType {
104 | TYPE_BM, TYPE_AM, TYPE_2232C, TYPE_R, TYPE_2232H, TYPE_4232H;
105 | }
106 |
107 | public FtdiSerialDriver(UsbDevice device) {
108 | mDevice = device;
109 | mPort = new FtdiSerialPort(mDevice, 0);
110 | }
111 | @Override
112 | public UsbDevice getDevice() {
113 | return mDevice;
114 | }
115 |
116 | @Override
117 | public List getPorts() {
118 | return Collections.singletonList(mPort);
119 | }
120 |
121 | private class FtdiSerialPort extends CommonUsbSerialPort {
122 |
123 | public static final int USB_TYPE_STANDARD = 0x00 << 5;
124 | public static final int USB_TYPE_CLASS = 0x00 << 5;
125 | public static final int USB_TYPE_VENDOR = 0x00 << 5;
126 | public static final int USB_TYPE_RESERVED = 0x00 << 5;
127 |
128 | public static final int USB_RECIP_DEVICE = 0x00;
129 | public static final int USB_RECIP_INTERFACE = 0x01;
130 | public static final int USB_RECIP_ENDPOINT = 0x02;
131 | public static final int USB_RECIP_OTHER = 0x03;
132 |
133 | public static final int USB_ENDPOINT_IN = 0x80;
134 | public static final int USB_ENDPOINT_OUT = 0x00;
135 |
136 | public static final int USB_WRITE_TIMEOUT_MILLIS = 5000;
137 | public static final int USB_READ_TIMEOUT_MILLIS = 5000;
138 |
139 | // From ftdi.h
140 | /**
141 | * Reset the port.
142 | */
143 | private static final int SIO_RESET_REQUEST = 0;
144 |
145 | /**
146 | * Set the modem control register.
147 | */
148 | private static final int SIO_MODEM_CTRL_REQUEST = 1;
149 |
150 | /**
151 | * Set flow control register.
152 | */
153 | private static final int SIO_SET_FLOW_CTRL_REQUEST = 2;
154 |
155 | /**
156 | * Set baud rate.
157 | */
158 | private static final int SIO_SET_BAUD_RATE_REQUEST = 3;
159 |
160 | /**
161 | * Set the data characteristics of the port.
162 | */
163 | private static final int SIO_SET_DATA_REQUEST = 4;
164 |
165 | private static final int SIO_RESET_SIO = 0;
166 | private static final int SIO_RESET_PURGE_RX = 1;
167 | private static final int SIO_RESET_PURGE_TX = 2;
168 |
169 | public static final int FTDI_DEVICE_OUT_REQTYPE =
170 | UsbConstants.USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT;
171 |
172 | public static final int FTDI_DEVICE_IN_REQTYPE =
173 | UsbConstants.USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN;
174 |
175 | /**
176 | * Length of the modem status header, transmitted with every read.
177 | */
178 | private static final int MODEM_STATUS_HEADER_LENGTH = 2;
179 |
180 | private final String TAG = FtdiSerialDriver.class.getSimpleName();
181 |
182 | private DeviceType mType;
183 |
184 | private int mInterface = 0; /* INTERFACE_ANY */
185 |
186 | private int mMaxPacketSize = 64; // TODO(mikey): detect
187 |
188 | /**
189 | * Due to http://b.android.com/28023 , we cannot use UsbRequest async reads
190 | * since it gives no indication of number of bytes read. Set this to
191 | * {@code true} on platforms where it is fixed.
192 | */
193 | private static final boolean ENABLE_ASYNC_READS = false;
194 |
195 | public FtdiSerialPort(UsbDevice device, int portNumber) {
196 | super(device, portNumber);
197 | }
198 |
199 | @Override
200 | public UsbSerialDriver getDriver() {
201 | return FtdiSerialDriver.this;
202 | }
203 |
204 | /**
205 | * Filter FTDI status bytes from buffer
206 | * @param src The source buffer (which contains status bytes)
207 | * @param dest The destination buffer to write the status bytes into (can be src)
208 | * @param totalBytesRead Number of bytes read to src
209 | * @param maxPacketSize The USB endpoint max packet size
210 | * @return The number of payload bytes
211 | */
212 | private final int filterStatusBytes(byte[] src, byte[] dest, int totalBytesRead, int maxPacketSize) {
213 | final int packetsCount = totalBytesRead / maxPacketSize + (totalBytesRead % maxPacketSize == 0 ? 0 : 1);
214 | for (int packetIdx = 0; packetIdx < packetsCount; ++packetIdx) {
215 | final int count = (packetIdx == (packetsCount - 1))
216 | ? (totalBytesRead % maxPacketSize) - MODEM_STATUS_HEADER_LENGTH
217 | : maxPacketSize - MODEM_STATUS_HEADER_LENGTH;
218 | if (count > 0) {
219 | System.arraycopy(src,
220 | packetIdx * maxPacketSize + MODEM_STATUS_HEADER_LENGTH,
221 | dest,
222 | packetIdx * (maxPacketSize - MODEM_STATUS_HEADER_LENGTH),
223 | count);
224 | }
225 | }
226 |
227 | return totalBytesRead - (packetsCount * 2);
228 | }
229 |
230 | public void reset() throws IOException {
231 | int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_RESET_REQUEST,
232 | SIO_RESET_SIO, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
233 | if (result != 0) {
234 | throw new IOException("Reset failed: result=" + result);
235 | }
236 |
237 | // TODO(mikey): autodetect.
238 | mType = DeviceType.TYPE_R;
239 | }
240 |
241 | @Override
242 | public void open(UsbDeviceConnection connection) throws IOException {
243 | if (mConnection != null) {
244 | throw new IOException("Already open");
245 | }
246 | mConnection = connection;
247 |
248 | boolean opened = false;
249 | try {
250 | for (int i = 0; i < mDevice.getInterfaceCount(); i++) {
251 | if (connection.claimInterface(mDevice.getInterface(i), true)) {
252 | Log.d(TAG, "claimInterface " + i + " SUCCESS");
253 | } else {
254 | throw new IOException("Error claiming interface " + i);
255 | }
256 | }
257 | reset();
258 | opened = true;
259 | } finally {
260 | if (!opened) {
261 | close();
262 | mConnection = null;
263 | }
264 | }
265 | }
266 |
267 | @Override
268 | public void close() throws IOException {
269 | if (mConnection == null) {
270 | throw new IOException("Already closed");
271 | }
272 | try {
273 | mConnection.close();
274 | } finally {
275 | mConnection = null;
276 | }
277 | }
278 |
279 | @Override
280 | public int read(byte[] dest, int timeoutMillis) throws IOException {
281 | final UsbEndpoint endpoint = mDevice.getInterface(0).getEndpoint(0);
282 |
283 | if (ENABLE_ASYNC_READS) {
284 | final int readAmt;
285 | synchronized (mReadBufferLock) {
286 | // mReadBuffer is only used for maximum read size.
287 | readAmt = Math.min(dest.length, mReadBuffer.length);
288 | }
289 |
290 | final UsbRequest request = new UsbRequest();
291 | request.initialize(mConnection, endpoint);
292 |
293 | final ByteBuffer buf = ByteBuffer.wrap(dest);
294 | if (!request.queue(buf, readAmt)) {
295 | throw new IOException("Error queueing request.");
296 | }
297 |
298 | final UsbRequest response = mConnection.requestWait();
299 | if (response == null) {
300 | throw new IOException("Null response");
301 | }
302 |
303 | final int payloadBytesRead = buf.position() - MODEM_STATUS_HEADER_LENGTH;
304 | if (payloadBytesRead > 0) {
305 | Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
306 | return payloadBytesRead;
307 | } else {
308 | return 0;
309 | }
310 | } else {
311 | final int totalBytesRead;
312 |
313 | synchronized (mReadBufferLock) {
314 | final int readAmt = Math.min(dest.length, mReadBuffer.length);
315 | totalBytesRead = mConnection.bulkTransfer(endpoint, mReadBuffer,
316 | readAmt, timeoutMillis);
317 |
318 | if (totalBytesRead < MODEM_STATUS_HEADER_LENGTH) {
319 | throw new IOException("Expected at least " + MODEM_STATUS_HEADER_LENGTH + " bytes");
320 | }
321 |
322 | return filterStatusBytes(mReadBuffer, dest, totalBytesRead, endpoint.getMaxPacketSize());
323 | }
324 | }
325 | }
326 |
327 | @Override
328 | public int write(byte[] src, int timeoutMillis) throws IOException {
329 | final UsbEndpoint endpoint = mDevice.getInterface(0).getEndpoint(1);
330 | int offset = 0;
331 |
332 | while (offset < src.length) {
333 | final int writeLength;
334 | final int amtWritten;
335 |
336 | synchronized (mWriteBufferLock) {
337 | final byte[] writeBuffer;
338 |
339 | writeLength = Math.min(src.length - offset, mWriteBuffer.length);
340 | if (offset == 0) {
341 | writeBuffer = src;
342 | } else {
343 | // bulkTransfer does not support offsets, make a copy.
344 | System.arraycopy(src, offset, mWriteBuffer, 0, writeLength);
345 | writeBuffer = mWriteBuffer;
346 | }
347 |
348 | amtWritten = mConnection.bulkTransfer(endpoint, writeBuffer, writeLength,
349 | timeoutMillis);
350 | }
351 |
352 | if (amtWritten <= 0) {
353 | throw new IOException("Error writing " + writeLength
354 | + " bytes at offset " + offset + " length=" + src.length);
355 | }
356 |
357 | Log.d(TAG, "Wrote amtWritten=" + amtWritten + " attempted=" + writeLength);
358 | offset += amtWritten;
359 | }
360 | return offset;
361 | }
362 |
363 | private int setBaudRate(int baudRate) throws IOException {
364 | long[] vals = convertBaudrate(baudRate);
365 | long actualBaudrate = vals[0];
366 | long index = vals[1];
367 | long value = vals[2];
368 | int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE,
369 | SIO_SET_BAUD_RATE_REQUEST, (int) value, (int) index,
370 | null, 0, USB_WRITE_TIMEOUT_MILLIS);
371 | if (result != 0) {
372 | throw new IOException("Setting baudrate failed: result=" + result);
373 | }
374 | return (int) actualBaudrate;
375 | }
376 |
377 | @Override
378 | public void setParameters(int baudRate, int dataBits, int stopBits, int parity)
379 | throws IOException {
380 | setBaudRate(baudRate);
381 |
382 | int config = dataBits;
383 |
384 | switch (parity) {
385 | case PARITY_NONE:
386 | config |= (0x00 << 8);
387 | break;
388 | case PARITY_ODD:
389 | config |= (0x01 << 8);
390 | break;
391 | case PARITY_EVEN:
392 | config |= (0x02 << 8);
393 | break;
394 | case PARITY_MARK:
395 | config |= (0x03 << 8);
396 | break;
397 | case PARITY_SPACE:
398 | config |= (0x04 << 8);
399 | break;
400 | default:
401 | throw new IllegalArgumentException("Unknown parity value: " + parity);
402 | }
403 |
404 | switch (stopBits) {
405 | case STOPBITS_1:
406 | config |= (0x00 << 11);
407 | break;
408 | case STOPBITS_1_5:
409 | config |= (0x01 << 11);
410 | break;
411 | case STOPBITS_2:
412 | config |= (0x02 << 11);
413 | break;
414 | default:
415 | throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
416 | }
417 |
418 | int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE,
419 | SIO_SET_DATA_REQUEST, config, 0 /* index */,
420 | null, 0, USB_WRITE_TIMEOUT_MILLIS);
421 | if (result != 0) {
422 | throw new IOException("Setting parameters failed: result=" + result);
423 | }
424 | }
425 |
426 | private long[] convertBaudrate(int baudrate) {
427 | // TODO(mikey): Braindead transcription of libfti method. Clean up,
428 | // using more idiomatic Java where possible.
429 | int divisor = 24000000 / baudrate;
430 | int bestDivisor = 0;
431 | int bestBaud = 0;
432 | int bestBaudDiff = 0;
433 | int fracCode[] = {
434 | 0, 3, 2, 4, 1, 5, 6, 7
435 | };
436 |
437 | for (int i = 0; i < 2; i++) {
438 | int tryDivisor = divisor + i;
439 | int baudEstimate;
440 | int baudDiff;
441 |
442 | if (tryDivisor <= 8) {
443 | // Round up to minimum supported divisor
444 | tryDivisor = 8;
445 | } else if (mType != DeviceType.TYPE_AM && tryDivisor < 12) {
446 | // BM doesn't support divisors 9 through 11 inclusive
447 | tryDivisor = 12;
448 | } else if (divisor < 16) {
449 | // AM doesn't support divisors 9 through 15 inclusive
450 | tryDivisor = 16;
451 | } else {
452 | if (mType == DeviceType.TYPE_AM) {
453 | // TODO
454 | } else {
455 | if (tryDivisor > 0x1FFFF) {
456 | // Round down to maximum supported divisor value (for
457 | // BM)
458 | tryDivisor = 0x1FFFF;
459 | }
460 | }
461 | }
462 |
463 | // Get estimated baud rate (to nearest integer)
464 | baudEstimate = (24000000 + (tryDivisor / 2)) / tryDivisor;
465 |
466 | // Get absolute difference from requested baud rate
467 | if (baudEstimate < baudrate) {
468 | baudDiff = baudrate - baudEstimate;
469 | } else {
470 | baudDiff = baudEstimate - baudrate;
471 | }
472 |
473 | if (i == 0 || baudDiff < bestBaudDiff) {
474 | // Closest to requested baud rate so far
475 | bestDivisor = tryDivisor;
476 | bestBaud = baudEstimate;
477 | bestBaudDiff = baudDiff;
478 | if (baudDiff == 0) {
479 | // Spot on! No point trying
480 | break;
481 | }
482 | }
483 | }
484 |
485 | // Encode the best divisor value
486 | long encodedDivisor = (bestDivisor >> 3) | (fracCode[bestDivisor & 7] << 14);
487 | // Deal with special cases for encoded value
488 | if (encodedDivisor == 1) {
489 | encodedDivisor = 0; // 3000000 baud
490 | } else if (encodedDivisor == 0x4001) {
491 | encodedDivisor = 1; // 2000000 baud (BM only)
492 | }
493 |
494 | // Split into "value" and "index" values
495 | long value = encodedDivisor & 0xFFFF;
496 | long index;
497 | if (mType == DeviceType.TYPE_2232C || mType == DeviceType.TYPE_2232H
498 | || mType == DeviceType.TYPE_4232H) {
499 | index = (encodedDivisor >> 8) & 0xffff;
500 | index &= 0xFF00;
501 | index |= 0 /* TODO mIndex */;
502 | } else {
503 | index = (encodedDivisor >> 16) & 0xffff;
504 | }
505 |
506 | // Return the nearest baud rate
507 | return new long[] {
508 | bestBaud, index, value
509 | };
510 | }
511 |
512 | @Override
513 | public boolean getCD() throws IOException {
514 | return false;
515 | }
516 |
517 | @Override
518 | public boolean getCTS() throws IOException {
519 | return false;
520 | }
521 |
522 | @Override
523 | public boolean getDSR() throws IOException {
524 | return false;
525 | }
526 |
527 | @Override
528 | public boolean getDTR() throws IOException {
529 | return false;
530 | }
531 |
532 | @Override
533 | public void setDTR(boolean value) throws IOException {
534 | }
535 |
536 | @Override
537 | public boolean getRI() throws IOException {
538 | return false;
539 | }
540 |
541 | @Override
542 | public boolean getRTS() throws IOException {
543 | return false;
544 | }
545 |
546 | @Override
547 | public void setRTS(boolean value) throws IOException {
548 | }
549 |
550 | @Override
551 | public boolean purgeHwBuffers(boolean purgeReadBuffers, boolean purgeWriteBuffers) throws IOException {
552 | if (purgeReadBuffers) {
553 | int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_RESET_REQUEST,
554 | SIO_RESET_PURGE_RX, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
555 | if (result != 0) {
556 | throw new IOException("Flushing RX failed: result=" + result);
557 | }
558 | }
559 |
560 | if (purgeWriteBuffers) {
561 | int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_RESET_REQUEST,
562 | SIO_RESET_PURGE_TX, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
563 | if (result != 0) {
564 | throw new IOException("Flushing RX failed: result=" + result);
565 | }
566 | }
567 | return true;
568 | }
569 | }
570 |
571 | public static Map getSupportedDevices() {
572 | final Map supportedDevices = new LinkedHashMap();
573 | supportedDevices.put(Integer.valueOf(UsbId.VENDOR_FTDI),
574 | new int[] {
575 | UsbId.FTDI_FT232R,
576 | UsbId.FTDI_FT231X,
577 | });
578 | return supportedDevices;
579 | }
580 |
581 | }
582 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/ProbeTable.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | import android.util.Pair;
25 |
26 | import java.lang.reflect.InvocationTargetException;
27 | import java.lang.reflect.Method;
28 | import java.util.LinkedHashMap;
29 | import java.util.Map;
30 |
31 | /**
32 | * Maps (vendor id, product id) pairs to the corresponding serial driver.
33 | *
34 | * @author mike wakerly (opensource@hoho.com)
35 | */
36 | public class ProbeTable {
37 |
38 | private final Map, Class> mProbeTable =
39 | new LinkedHashMap, Class>();
40 |
41 | /**
42 | * Adds or updates a (vendor, product) pair in the table.
43 | *
44 | * @param vendorId the USB vendor id
45 | * @param productId the USB product id
46 | * @param driverClass the driver class responsible for this pair
47 | * @return {@code this}, for chaining
48 | */
49 | public ProbeTable addProduct(int vendorId, int productId,
50 | Class driverClass) {
51 | mProbeTable.put(Pair.create(vendorId, productId), driverClass);
52 | return this;
53 | }
54 |
55 | /**
56 | * Internal method to add all supported products from
57 | * {@code getSupportedProducts} static method.
58 | *
59 | * @param driverClass
60 | * @return
61 | */
62 | @SuppressWarnings("unchecked")
63 | ProbeTable addDriver(Class driverClass) {
64 | final Method method;
65 |
66 | try {
67 | method = driverClass.getMethod("getSupportedDevices");
68 | } catch (SecurityException e) {
69 | throw new RuntimeException(e);
70 | } catch (NoSuchMethodException e) {
71 | throw new RuntimeException(e);
72 | }
73 |
74 | final Map devices;
75 | try {
76 | devices = (Map) method.invoke(null);
77 | } catch (IllegalArgumentException e) {
78 | throw new RuntimeException(e);
79 | } catch (IllegalAccessException e) {
80 | throw new RuntimeException(e);
81 | } catch (InvocationTargetException e) {
82 | throw new RuntimeException(e);
83 | }
84 |
85 | for (Map.Entry entry : devices.entrySet()) {
86 | final int vendorId = entry.getKey().intValue();
87 | for (int productId : entry.getValue()) {
88 | addProduct(vendorId, productId, driverClass);
89 | }
90 | }
91 |
92 | return this;
93 | }
94 |
95 | /**
96 | * Returns the driver for the given (vendor, product) pair, or {@code null}
97 | * if no match.
98 | *
99 | * @param vendorId the USB vendor id
100 | * @param productId the USB product id
101 | * @return the driver class matching this pair, or {@code null}
102 | */
103 | public Class findDriver(int vendorId, int productId) {
104 | final Pair pair = Pair.create(vendorId, productId);
105 | return mProbeTable.get(pair);
106 | }
107 |
108 | }
109 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/ProlificSerialDriver.java:
--------------------------------------------------------------------------------
1 | /* This library is free software; you can redistribute it and/or
2 | * modify it under the terms of the GNU Lesser General Public
3 | * License as published by the Free Software Foundation; either
4 | * version 2.1 of the License, or (at your option) any later version.
5 | *
6 | * This library is distributed in the hope that it will be useful,
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
9 | * Lesser General Public License for more details.
10 | *
11 | * You should have received a copy of the GNU Lesser General Public
12 | * License along with this library; if not, write to the Free Software
13 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
14 | * USA.
15 | *
16 | * Project home page: https://github.com/mik3y/usb-serial-for-android
17 | */
18 |
19 | /*
20 | * Ported to usb-serial-for-android
21 | * by Felix Hädicke
22 | *
23 | * Based on the pyprolific driver written
24 | * by Emmanuel Blot
25 | * See https://github.com/eblot/pyftdi
26 | */
27 |
28 | package com.hoho.android.usbserial.driver;
29 |
30 | import android.hardware.usb.UsbConstants;
31 | import android.hardware.usb.UsbDevice;
32 | import android.hardware.usb.UsbDeviceConnection;
33 | import android.hardware.usb.UsbEndpoint;
34 | import android.hardware.usb.UsbInterface;
35 | import android.util.Log;
36 |
37 | import java.io.IOException;
38 | import java.lang.reflect.Method;
39 | import java.util.Collections;
40 | import java.util.LinkedHashMap;
41 | import java.util.List;
42 | import java.util.Map;
43 |
44 | public class ProlificSerialDriver implements UsbSerialDriver {
45 |
46 | private final String TAG = ProlificSerialDriver.class.getSimpleName();
47 |
48 | private final UsbDevice mDevice;
49 | private final UsbSerialPort mPort;
50 |
51 | public ProlificSerialDriver(UsbDevice device) {
52 | mDevice = device;
53 | mPort = new ProlificSerialPort(mDevice, 0);
54 | }
55 |
56 | @Override
57 | public List getPorts() {
58 | return Collections.singletonList(mPort);
59 | }
60 |
61 | @Override
62 | public UsbDevice getDevice() {
63 | return mDevice;
64 | }
65 |
66 | class ProlificSerialPort extends CommonUsbSerialPort {
67 |
68 | private static final int USB_READ_TIMEOUT_MILLIS = 1000;
69 | private static final int USB_WRITE_TIMEOUT_MILLIS = 5000;
70 |
71 | private static final int USB_RECIP_INTERFACE = 0x01;
72 |
73 | private static final int PROLIFIC_VENDOR_READ_REQUEST = 0x01;
74 | private static final int PROLIFIC_VENDOR_WRITE_REQUEST = 0x01;
75 |
76 | private static final int PROLIFIC_VENDOR_OUT_REQTYPE = UsbConstants.USB_DIR_OUT
77 | | UsbConstants.USB_TYPE_VENDOR;
78 |
79 | private static final int PROLIFIC_VENDOR_IN_REQTYPE = UsbConstants.USB_DIR_IN
80 | | UsbConstants.USB_TYPE_VENDOR;
81 |
82 | private static final int PROLIFIC_CTRL_OUT_REQTYPE = UsbConstants.USB_DIR_OUT
83 | | UsbConstants.USB_TYPE_CLASS | USB_RECIP_INTERFACE;
84 |
85 | private static final int WRITE_ENDPOINT = 0x02;
86 | private static final int READ_ENDPOINT = 0x83;
87 | private static final int INTERRUPT_ENDPOINT = 0x81;
88 |
89 | private static final int FLUSH_RX_REQUEST = 0x08;
90 | private static final int FLUSH_TX_REQUEST = 0x09;
91 |
92 | private static final int SET_LINE_REQUEST = 0x20;
93 | private static final int SET_CONTROL_REQUEST = 0x22;
94 |
95 | private static final int CONTROL_DTR = 0x01;
96 | private static final int CONTROL_RTS = 0x02;
97 |
98 | private static final int STATUS_FLAG_CD = 0x01;
99 | private static final int STATUS_FLAG_DSR = 0x02;
100 | private static final int STATUS_FLAG_RI = 0x08;
101 | private static final int STATUS_FLAG_CTS = 0x80;
102 |
103 | private static final int STATUS_BUFFER_SIZE = 10;
104 | private static final int STATUS_BYTE_IDX = 8;
105 |
106 | private static final int DEVICE_TYPE_HX = 0;
107 | private static final int DEVICE_TYPE_0 = 1;
108 | private static final int DEVICE_TYPE_1 = 2;
109 |
110 | private int mDeviceType = DEVICE_TYPE_HX;
111 |
112 | private UsbEndpoint mReadEndpoint;
113 | private UsbEndpoint mWriteEndpoint;
114 | private UsbEndpoint mInterruptEndpoint;
115 |
116 | private int mControlLinesValue = 0;
117 |
118 | private int mBaudRate = -1, mDataBits = -1, mStopBits = -1, mParity = -1;
119 |
120 | private int mStatus = 0;
121 | private volatile Thread mReadStatusThread = null;
122 | private final Object mReadStatusThreadLock = new Object();
123 | boolean mStopReadStatusThread = false;
124 | private IOException mReadStatusException = null;
125 |
126 |
127 | public ProlificSerialPort(UsbDevice device, int portNumber) {
128 | super(device, portNumber);
129 | }
130 |
131 | @Override
132 | public UsbSerialDriver getDriver() {
133 | return ProlificSerialDriver.this;
134 | }
135 |
136 | private final byte[] inControlTransfer(int requestType, int request,
137 | int value, int index, int length) throws IOException {
138 | byte[] buffer = new byte[length];
139 | int result = mConnection.controlTransfer(requestType, request, value,
140 | index, buffer, length, USB_READ_TIMEOUT_MILLIS);
141 | if (result != length) {
142 | throw new IOException(
143 | String.format("ControlTransfer with value 0x%x failed: %d",
144 | value, result));
145 | }
146 | return buffer;
147 | }
148 |
149 | private final void outControlTransfer(int requestType, int request,
150 | int value, int index, byte[] data) throws IOException {
151 | int length = (data == null) ? 0 : data.length;
152 | int result = mConnection.controlTransfer(requestType, request, value,
153 | index, data, length, USB_WRITE_TIMEOUT_MILLIS);
154 | if (result != length) {
155 | throw new IOException(
156 | String.format("ControlTransfer with value 0x%x failed: %d",
157 | value, result));
158 | }
159 | }
160 |
161 | private final byte[] vendorIn(int value, int index, int length)
162 | throws IOException {
163 | return inControlTransfer(PROLIFIC_VENDOR_IN_REQTYPE,
164 | PROLIFIC_VENDOR_READ_REQUEST, value, index, length);
165 | }
166 |
167 | private final void vendorOut(int value, int index, byte[] data)
168 | throws IOException {
169 | outControlTransfer(PROLIFIC_VENDOR_OUT_REQTYPE,
170 | PROLIFIC_VENDOR_WRITE_REQUEST, value, index, data);
171 | }
172 |
173 | private void resetDevice() throws IOException {
174 | purgeHwBuffers(true, true);
175 | }
176 |
177 | private final void ctrlOut(int request, int value, int index, byte[] data)
178 | throws IOException {
179 | outControlTransfer(PROLIFIC_CTRL_OUT_REQTYPE, request, value, index,
180 | data);
181 | }
182 |
183 | private void doBlackMagic() throws IOException {
184 | vendorIn(0x8484, 0, 1);
185 | vendorOut(0x0404, 0, null);
186 | vendorIn(0x8484, 0, 1);
187 | vendorIn(0x8383, 0, 1);
188 | vendorIn(0x8484, 0, 1);
189 | vendorOut(0x0404, 1, null);
190 | vendorIn(0x8484, 0, 1);
191 | vendorIn(0x8383, 0, 1);
192 | vendorOut(0, 1, null);
193 | vendorOut(1, 0, null);
194 | vendorOut(2, (mDeviceType == DEVICE_TYPE_HX) ? 0x44 : 0x24, null);
195 | }
196 |
197 | private void setControlLines(int newControlLinesValue) throws IOException {
198 | ctrlOut(SET_CONTROL_REQUEST, newControlLinesValue, 0, null);
199 | mControlLinesValue = newControlLinesValue;
200 | }
201 |
202 | private final void readStatusThreadFunction() {
203 | try {
204 | while (!mStopReadStatusThread) {
205 | byte[] buffer = new byte[STATUS_BUFFER_SIZE];
206 | int readBytesCount = mConnection.bulkTransfer(mInterruptEndpoint,
207 | buffer,
208 | STATUS_BUFFER_SIZE,
209 | 500);
210 | if (readBytesCount > 0) {
211 | if (readBytesCount == STATUS_BUFFER_SIZE) {
212 | mStatus = buffer[STATUS_BYTE_IDX] & 0xff;
213 | } else {
214 | throw new IOException(
215 | String.format("Invalid CTS / DSR / CD / RI status buffer received, expected %d bytes, but received %d",
216 | STATUS_BUFFER_SIZE,
217 | readBytesCount));
218 | }
219 | }
220 | }
221 | } catch (IOException e) {
222 | mReadStatusException = e;
223 | }
224 | }
225 |
226 | private final int getStatus() throws IOException {
227 | if ((mReadStatusThread == null) && (mReadStatusException == null)) {
228 | synchronized (mReadStatusThreadLock) {
229 | if (mReadStatusThread == null) {
230 | byte[] buffer = new byte[STATUS_BUFFER_SIZE];
231 | int readBytes = mConnection.bulkTransfer(mInterruptEndpoint,
232 | buffer,
233 | STATUS_BUFFER_SIZE,
234 | 100);
235 | if (readBytes != STATUS_BUFFER_SIZE) {
236 | Log.w(TAG, "Could not read initial CTS / DSR / CD / RI status");
237 | } else {
238 | mStatus = buffer[STATUS_BYTE_IDX] & 0xff;
239 | }
240 |
241 | mReadStatusThread = new Thread(new Runnable() {
242 | @Override
243 | public void run() {
244 | readStatusThreadFunction();
245 | }
246 | });
247 | mReadStatusThread.setDaemon(true);
248 | mReadStatusThread.start();
249 | }
250 | }
251 | }
252 |
253 | /* throw and clear an exception which occured in the status read thread */
254 | IOException readStatusException = mReadStatusException;
255 | if (mReadStatusException != null) {
256 | mReadStatusException = null;
257 | throw readStatusException;
258 | }
259 |
260 | return mStatus;
261 | }
262 |
263 | private final boolean testStatusFlag(int flag) throws IOException {
264 | return ((getStatus() & flag) == flag);
265 | }
266 |
267 | @Override
268 | public void open(UsbDeviceConnection connection) throws IOException {
269 | if (mConnection != null) {
270 | throw new IOException("Already open");
271 | }
272 |
273 | UsbInterface usbInterface = mDevice.getInterface(0);
274 |
275 | if (!connection.claimInterface(usbInterface, true)) {
276 | throw new IOException("Error claiming Prolific interface 0");
277 | }
278 |
279 | mConnection = connection;
280 | boolean opened = false;
281 | try {
282 | for (int i = 0; i < usbInterface.getEndpointCount(); ++i) {
283 | UsbEndpoint currentEndpoint = usbInterface.getEndpoint(i);
284 |
285 | switch (currentEndpoint.getAddress()) {
286 | case READ_ENDPOINT:
287 | mReadEndpoint = currentEndpoint;
288 | break;
289 |
290 | case WRITE_ENDPOINT:
291 | mWriteEndpoint = currentEndpoint;
292 | break;
293 |
294 | case INTERRUPT_ENDPOINT:
295 | mInterruptEndpoint = currentEndpoint;
296 | break;
297 | }
298 | }
299 |
300 | if (mDevice.getDeviceClass() == 0x02) {
301 | mDeviceType = DEVICE_TYPE_0;
302 | } else {
303 | try {
304 | Method getRawDescriptorsMethod
305 | = mConnection.getClass().getMethod("getRawDescriptors");
306 | byte[] rawDescriptors
307 | = (byte[]) getRawDescriptorsMethod.invoke(mConnection);
308 | byte maxPacketSize0 = rawDescriptors[7];
309 | if (maxPacketSize0 == 64) {
310 | mDeviceType = DEVICE_TYPE_HX;
311 | } else if ((mDevice.getDeviceClass() == 0x00)
312 | || (mDevice.getDeviceClass() == 0xff)) {
313 | mDeviceType = DEVICE_TYPE_1;
314 | } else {
315 | Log.w(TAG, "Could not detect PL2303 subtype, "
316 | + "Assuming that it is a HX device");
317 | mDeviceType = DEVICE_TYPE_HX;
318 | }
319 | } catch (NoSuchMethodException e) {
320 | Log.w(TAG, "Method UsbDeviceConnection.getRawDescriptors, "
321 | + "required for PL2303 subtype detection, not "
322 | + "available! Assuming that it is a HX device");
323 | mDeviceType = DEVICE_TYPE_HX;
324 | } catch (Exception e) {
325 | Log.e(TAG, "An unexpected exception occured while trying "
326 | + "to detect PL2303 subtype", e);
327 | }
328 | }
329 |
330 | setControlLines(mControlLinesValue);
331 | resetDevice();
332 |
333 | doBlackMagic();
334 | opened = true;
335 | } finally {
336 | if (!opened) {
337 | mConnection = null;
338 | connection.releaseInterface(usbInterface);
339 | }
340 | }
341 | }
342 |
343 | @Override
344 | public void close() throws IOException {
345 | if (mConnection == null) {
346 | throw new IOException("Already closed");
347 | }
348 | try {
349 | mStopReadStatusThread = true;
350 | synchronized (mReadStatusThreadLock) {
351 | if (mReadStatusThread != null) {
352 | try {
353 | mReadStatusThread.join();
354 | } catch (Exception e) {
355 | Log.w(TAG, "An error occured while waiting for status read thread", e);
356 | }
357 | }
358 | }
359 | resetDevice();
360 | } finally {
361 | try {
362 | mConnection.releaseInterface(mDevice.getInterface(0));
363 | } finally {
364 | mConnection = null;
365 | }
366 | }
367 | }
368 |
369 | @Override
370 | public int read(byte[] dest, int timeoutMillis) throws IOException {
371 | synchronized (mReadBufferLock) {
372 | int readAmt = Math.min(dest.length, mReadBuffer.length);
373 | int numBytesRead = mConnection.bulkTransfer(mReadEndpoint, mReadBuffer,
374 | readAmt, timeoutMillis);
375 | if (numBytesRead < 0) {
376 | return 0;
377 | }
378 | System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
379 | return numBytesRead;
380 | }
381 | }
382 |
383 | @Override
384 | public int write(byte[] src, int timeoutMillis) throws IOException {
385 | int offset = 0;
386 |
387 | while (offset < src.length) {
388 | final int writeLength;
389 | final int amtWritten;
390 |
391 | synchronized (mWriteBufferLock) {
392 | final byte[] writeBuffer;
393 |
394 | writeLength = Math.min(src.length - offset, mWriteBuffer.length);
395 | if (offset == 0) {
396 | writeBuffer = src;
397 | } else {
398 | // bulkTransfer does not support offsets, make a copy.
399 | System.arraycopy(src, offset, mWriteBuffer, 0, writeLength);
400 | writeBuffer = mWriteBuffer;
401 | }
402 |
403 | amtWritten = mConnection.bulkTransfer(mWriteEndpoint,
404 | writeBuffer, writeLength, timeoutMillis);
405 | }
406 |
407 | if (amtWritten <= 0) {
408 | throw new IOException("Error writing " + writeLength
409 | + " bytes at offset " + offset + " length="
410 | + src.length);
411 | }
412 |
413 | offset += amtWritten;
414 | }
415 | return offset;
416 | }
417 |
418 | @Override
419 | public void setParameters(int baudRate, int dataBits, int stopBits,
420 | int parity) throws IOException {
421 | if ((mBaudRate == baudRate) && (mDataBits == dataBits)
422 | && (mStopBits == stopBits) && (mParity == parity)) {
423 | // Make sure no action is performed if there is nothing to change
424 | return;
425 | }
426 |
427 | byte[] lineRequestData = new byte[7];
428 |
429 | lineRequestData[0] = (byte) (baudRate & 0xff);
430 | lineRequestData[1] = (byte) ((baudRate >> 8) & 0xff);
431 | lineRequestData[2] = (byte) ((baudRate >> 16) & 0xff);
432 | lineRequestData[3] = (byte) ((baudRate >> 24) & 0xff);
433 |
434 | switch (stopBits) {
435 | case STOPBITS_1:
436 | lineRequestData[4] = 0;
437 | break;
438 |
439 | case STOPBITS_1_5:
440 | lineRequestData[4] = 1;
441 | break;
442 |
443 | case STOPBITS_2:
444 | lineRequestData[4] = 2;
445 | break;
446 |
447 | default:
448 | throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
449 | }
450 |
451 | switch (parity) {
452 | case PARITY_NONE:
453 | lineRequestData[5] = 0;
454 | break;
455 |
456 | case PARITY_ODD:
457 | lineRequestData[5] = 1;
458 | break;
459 |
460 | case PARITY_MARK:
461 | lineRequestData[5] = 3;
462 | break;
463 |
464 | case PARITY_SPACE:
465 | lineRequestData[5] = 4;
466 | break;
467 |
468 | default:
469 | throw new IllegalArgumentException("Unknown parity value: " + parity);
470 | }
471 |
472 | lineRequestData[6] = (byte) dataBits;
473 |
474 | ctrlOut(SET_LINE_REQUEST, 0, 0, lineRequestData);
475 |
476 | resetDevice();
477 |
478 | mBaudRate = baudRate;
479 | mDataBits = dataBits;
480 | mStopBits = stopBits;
481 | mParity = parity;
482 | }
483 |
484 | @Override
485 | public boolean getCD() throws IOException {
486 | return testStatusFlag(STATUS_FLAG_CD);
487 | }
488 |
489 | @Override
490 | public boolean getCTS() throws IOException {
491 | return testStatusFlag(STATUS_FLAG_CTS);
492 | }
493 |
494 | @Override
495 | public boolean getDSR() throws IOException {
496 | return testStatusFlag(STATUS_FLAG_DSR);
497 | }
498 |
499 | @Override
500 | public boolean getDTR() throws IOException {
501 | return ((mControlLinesValue & CONTROL_DTR) == CONTROL_DTR);
502 | }
503 |
504 | @Override
505 | public void setDTR(boolean value) throws IOException {
506 | int newControlLinesValue;
507 | if (value) {
508 | newControlLinesValue = mControlLinesValue | CONTROL_DTR;
509 | } else {
510 | newControlLinesValue = mControlLinesValue & ~CONTROL_DTR;
511 | }
512 | setControlLines(newControlLinesValue);
513 | }
514 |
515 | @Override
516 | public boolean getRI() throws IOException {
517 | return testStatusFlag(STATUS_FLAG_RI);
518 | }
519 |
520 | @Override
521 | public boolean getRTS() throws IOException {
522 | return ((mControlLinesValue & CONTROL_RTS) == CONTROL_RTS);
523 | }
524 |
525 | @Override
526 | public void setRTS(boolean value) throws IOException {
527 | int newControlLinesValue;
528 | if (value) {
529 | newControlLinesValue = mControlLinesValue | CONTROL_RTS;
530 | } else {
531 | newControlLinesValue = mControlLinesValue & ~CONTROL_RTS;
532 | }
533 | setControlLines(newControlLinesValue);
534 | }
535 |
536 | @Override
537 | public boolean purgeHwBuffers(boolean purgeReadBuffers, boolean purgeWriteBuffers) throws IOException {
538 | if (purgeReadBuffers) {
539 | vendorOut(FLUSH_RX_REQUEST, 0, null);
540 | }
541 |
542 | if (purgeWriteBuffers) {
543 | vendorOut(FLUSH_TX_REQUEST, 0, null);
544 | }
545 |
546 | return purgeReadBuffers || purgeWriteBuffers;
547 | }
548 | }
549 |
550 | public static Map getSupportedDevices() {
551 | final Map supportedDevices = new LinkedHashMap();
552 | supportedDevices.put(Integer.valueOf(UsbId.VENDOR_PROLIFIC),
553 | new int[] { UsbId.PROLIFIC_PL2303, });
554 | return supportedDevices;
555 | }
556 | }
557 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbId.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | /**
25 | * Registry of USB vendor/product ID constants.
26 | *
27 | * Culled from various sources; see
28 | * usb.ids for one listing.
29 | *
30 | * @author mike wakerly (opensource@hoho.com)
31 | */
32 | public final class UsbId {
33 |
34 | public static final int VENDOR_FTDI = 0x0403;
35 | public static final int FTDI_FT232R = 0x6001;
36 | public static final int FTDI_FT231X = 0x6015;
37 |
38 | public static final int VENDOR_ATMEL = 0x03EB;
39 | public static final int ATMEL_LUFA_CDC_DEMO_APP = 0x2044;
40 |
41 | public static final int VENDOR_ARDUINO = 0x2341;
42 | public static final int ARDUINO_UNO = 0x0001;
43 | public static final int ARDUINO_MEGA_2560 = 0x0010;
44 | public static final int ARDUINO_SERIAL_ADAPTER = 0x003b;
45 | public static final int ARDUINO_MEGA_ADK = 0x003f;
46 | public static final int ARDUINO_MEGA_2560_R3 = 0x0042;
47 | public static final int ARDUINO_UNO_R3 = 0x0043;
48 | public static final int ARDUINO_MEGA_ADK_R3 = 0x0044;
49 | public static final int ARDUINO_SERIAL_ADAPTER_R3 = 0x0044;
50 | public static final int ARDUINO_LEONARDO = 0x8036;
51 |
52 | public static final int VENDOR_VAN_OOIJEN_TECH = 0x16c0;
53 | public static final int VAN_OOIJEN_TECH_TEENSYDUINO_SERIAL = 0x0483;
54 |
55 | public static final int VENDOR_LEAFLABS = 0x1eaf;
56 | public static final int LEAFLABS_MAPLE = 0x0004;
57 |
58 | public static final int VENDOR_SILABS = 0x10c4;
59 | public static final int SILABS_CP2102 = 0xea60;
60 | public static final int SILABS_CP2105 = 0xea70;
61 | public static final int SILABS_CP2108 = 0xea71;
62 | public static final int SILABS_CP2110 = 0xea80;
63 |
64 | public static final int VENDOR_PROLIFIC = 0x067b;
65 | public static final int PROLIFIC_PL2303 = 0x2303;
66 |
67 | public static final int VENDOR_QINHENG = 0x1a86;
68 | public static final int QINHENG_HL340 = 0x7523;
69 |
70 | private UsbId() {
71 | throw new IllegalAccessError("Non-instantiable class.");
72 | }
73 |
74 | }
75 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbSerialDriver.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | import android.hardware.usb.UsbDevice;
25 |
26 | import java.util.List;
27 |
28 | /**
29 | *
30 | * @author mike wakerly (opensource@hoho.com)
31 | */
32 | public interface UsbSerialDriver {
33 |
34 | /**
35 | * Returns the raw {@link UsbDevice} backing this port.
36 | *
37 | * @return the device
38 | */
39 | public UsbDevice getDevice();
40 |
41 | /**
42 | * Returns all available ports for this device. This list must have at least
43 | * one entry.
44 | *
45 | * @return the ports
46 | */
47 | public List getPorts();
48 | }
49 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbSerialPort.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | import android.hardware.usb.UsbDeviceConnection;
25 | import android.hardware.usb.UsbManager;
26 |
27 | import java.io.IOException;
28 |
29 | /**
30 | * Interface for a single serial port.
31 | *
32 | * @author mike wakerly (opensource@hoho.com)
33 | */
34 | public interface UsbSerialPort {
35 |
36 | /** 5 data bits. */
37 | public static final int DATABITS_5 = 5;
38 |
39 | /** 6 data bits. */
40 | public static final int DATABITS_6 = 6;
41 |
42 | /** 7 data bits. */
43 | public static final int DATABITS_7 = 7;
44 |
45 | /** 8 data bits. */
46 | public static final int DATABITS_8 = 8;
47 |
48 | /** No flow control. */
49 | public static final int FLOWCONTROL_NONE = 0;
50 |
51 | /** RTS/CTS input flow control. */
52 | public static final int FLOWCONTROL_RTSCTS_IN = 1;
53 |
54 | /** RTS/CTS output flow control. */
55 | public static final int FLOWCONTROL_RTSCTS_OUT = 2;
56 |
57 | /** XON/XOFF input flow control. */
58 | public static final int FLOWCONTROL_XONXOFF_IN = 4;
59 |
60 | /** XON/XOFF output flow control. */
61 | public static final int FLOWCONTROL_XONXOFF_OUT = 8;
62 |
63 | /** No parity. */
64 | public static final int PARITY_NONE = 0;
65 |
66 | /** Odd parity. */
67 | public static final int PARITY_ODD = 1;
68 |
69 | /** Even parity. */
70 | public static final int PARITY_EVEN = 2;
71 |
72 | /** Mark parity. */
73 | public static final int PARITY_MARK = 3;
74 |
75 | /** Space parity. */
76 | public static final int PARITY_SPACE = 4;
77 |
78 | /** 1 stop bit. */
79 | public static final int STOPBITS_1 = 1;
80 |
81 | /** 1.5 stop bits. */
82 | public static final int STOPBITS_1_5 = 3;
83 |
84 | /** 2 stop bits. */
85 | public static final int STOPBITS_2 = 2;
86 |
87 | public UsbSerialDriver getDriver();
88 |
89 | /**
90 | * Port number within driver.
91 | */
92 | public int getPortNumber();
93 |
94 | /**
95 | * The serial number of the underlying UsbDeviceConnection, or {@code null}.
96 | */
97 | public String getSerial();
98 |
99 | /**
100 | * Opens and initializes the port. Upon success, caller must ensure that
101 | * {@link #close()} is eventually called.
102 | *
103 | * @param connection an open device connection, acquired with
104 | * {@link UsbManager#openDevice(android.hardware.usb.UsbDevice)}
105 | * @throws IOException on error opening or initializing the port.
106 | */
107 | public void open(UsbDeviceConnection connection) throws IOException;
108 |
109 | /**
110 | * Closes the port.
111 | *
112 | * @throws IOException on error closing the port.
113 | */
114 | public void close() throws IOException;
115 |
116 | /**
117 | * Reads as many bytes as possible into the destination buffer.
118 | *
119 | * @param dest the destination byte buffer
120 | * @param timeoutMillis the timeout for reading
121 | * @return the actual number of bytes read
122 | * @throws IOException if an error occurred during reading
123 | */
124 | public int read(final byte[] dest, final int timeoutMillis) throws IOException;
125 |
126 | /**
127 | * Writes as many bytes as possible from the source buffer.
128 | *
129 | * @param src the source byte buffer
130 | * @param timeoutMillis the timeout for writing
131 | * @return the actual number of bytes written
132 | * @throws IOException if an error occurred during writing
133 | */
134 | public int write(final byte[] src, final int timeoutMillis) throws IOException;
135 |
136 | /**
137 | * Sets various serial port parameters.
138 | *
139 | * @param baudRate baud rate as an integer, for example {@code 115200}.
140 | * @param dataBits one of {@link #DATABITS_5}, {@link #DATABITS_6},
141 | * {@link #DATABITS_7}, or {@link #DATABITS_8}.
142 | * @param stopBits one of {@link #STOPBITS_1}, {@link #STOPBITS_1_5}, or
143 | * {@link #STOPBITS_2}.
144 | * @param parity one of {@link #PARITY_NONE}, {@link #PARITY_ODD},
145 | * {@link #PARITY_EVEN}, {@link #PARITY_MARK}, or
146 | * {@link #PARITY_SPACE}.
147 | * @throws IOException on error setting the port parameters
148 | */
149 | public void setParameters(
150 | int baudRate, int dataBits, int stopBits, int parity) throws IOException;
151 |
152 | /**
153 | * Gets the CD (Carrier Detect) bit from the underlying UART.
154 | *
155 | * @return the current state, or {@code false} if not supported.
156 | * @throws IOException if an error occurred during reading
157 | */
158 | public boolean getCD() throws IOException;
159 |
160 | /**
161 | * Gets the CTS (Clear To Send) bit from the underlying UART.
162 | *
163 | * @return the current state, or {@code false} if not supported.
164 | * @throws IOException if an error occurred during reading
165 | */
166 | public boolean getCTS() throws IOException;
167 |
168 | /**
169 | * Gets the DSR (Data Set Ready) bit from the underlying UART.
170 | *
171 | * @return the current state, or {@code false} if not supported.
172 | * @throws IOException if an error occurred during reading
173 | */
174 | public boolean getDSR() throws IOException;
175 |
176 | /**
177 | * Gets the DTR (Data Terminal Ready) bit from the underlying UART.
178 | *
179 | * @return the current state, or {@code false} if not supported.
180 | * @throws IOException if an error occurred during reading
181 | */
182 | public boolean getDTR() throws IOException;
183 |
184 | /**
185 | * Sets the DTR (Data Terminal Ready) bit on the underlying UART, if
186 | * supported.
187 | *
188 | * @param value the value to set
189 | * @throws IOException if an error occurred during writing
190 | */
191 | public void setDTR(boolean value) throws IOException;
192 |
193 | /**
194 | * Gets the RI (Ring Indicator) bit from the underlying UART.
195 | *
196 | * @return the current state, or {@code false} if not supported.
197 | * @throws IOException if an error occurred during reading
198 | */
199 | public boolean getRI() throws IOException;
200 |
201 | /**
202 | * Gets the RTS (Request To Send) bit from the underlying UART.
203 | *
204 | * @return the current state, or {@code false} if not supported.
205 | * @throws IOException if an error occurred during reading
206 | */
207 | public boolean getRTS() throws IOException;
208 |
209 | /**
210 | * Sets the RTS (Request To Send) bit on the underlying UART, if
211 | * supported.
212 | *
213 | * @param value the value to set
214 | * @throws IOException if an error occurred during writing
215 | */
216 | public void setRTS(boolean value) throws IOException;
217 |
218 | /**
219 | * Flush non-transmitted output data and / or non-read input data
220 | * @param flushRX {@code true} to flush non-transmitted output data
221 | * @param flushTX {@code true} to flush non-read input data
222 | * @return {@code true} if the operation was successful, or
223 | * {@code false} if the operation is not supported by the driver or device
224 | * @throws IOException if an error occurred during flush
225 | */
226 | public boolean purgeHwBuffers(boolean flushRX, boolean flushTX) throws IOException;
227 |
228 | }
229 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbSerialProber.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.driver;
23 |
24 | import android.hardware.usb.UsbDevice;
25 | import android.hardware.usb.UsbManager;
26 |
27 | import java.lang.reflect.Constructor;
28 | import java.lang.reflect.InvocationTargetException;
29 | import java.util.ArrayList;
30 | import java.util.List;
31 |
32 | /**
33 | *
34 | * @author mike wakerly (opensource@hoho.com)
35 | */
36 | public class UsbSerialProber {
37 |
38 | private final ProbeTable mProbeTable;
39 |
40 | public UsbSerialProber(ProbeTable probeTable) {
41 | mProbeTable = probeTable;
42 | }
43 |
44 | public static UsbSerialProber getDefaultProber() {
45 | return new UsbSerialProber(getDefaultProbeTable());
46 | }
47 |
48 | public static ProbeTable getDefaultProbeTable() {
49 | final ProbeTable probeTable = new ProbeTable();
50 | probeTable.addDriver(CdcAcmSerialDriver.class);
51 | probeTable.addDriver(Cp21xxSerialDriver.class);
52 | probeTable.addDriver(FtdiSerialDriver.class);
53 | probeTable.addDriver(ProlificSerialDriver.class);
54 | probeTable.addDriver(CH34xSerialDriver.class);
55 | return probeTable;
56 | }
57 |
58 | /**
59 | * Finds and builds all possible {@link UsbSerialDriver UsbSerialDrivers}
60 | * from the currently-attached {@link UsbDevice} hierarchy. This method does
61 | * not require permission from the Android USB system, since it does not
62 | * open any of the devices.
63 | *
64 | * @param usbManager
65 | * @return a list, possibly empty, of all compatible drivers
66 | */
67 | public List findAllDrivers(final UsbManager usbManager) {
68 | final List result = new ArrayList();
69 |
70 | for (final UsbDevice usbDevice : usbManager.getDeviceList().values()) {
71 | final UsbSerialDriver driver = probeDevice(usbDevice);
72 | if (driver != null) {
73 | result.add(driver);
74 | }
75 | }
76 | return result;
77 | }
78 |
79 | /**
80 | * Probes a single device for a compatible driver.
81 | *
82 | * @param usbDevice the usb device to probe
83 | * @return a new {@link UsbSerialDriver} compatible with this device, or
84 | * {@code null} if none available.
85 | */
86 | public UsbSerialDriver probeDevice(final UsbDevice usbDevice) {
87 | final int vendorId = usbDevice.getVendorId();
88 | final int productId = usbDevice.getProductId();
89 |
90 | final Class driverClass =
91 | mProbeTable.findDriver(vendorId, productId);
92 | if (driverClass != null) {
93 | final UsbSerialDriver driver;
94 | try {
95 | final Constructor ctor =
96 | driverClass.getConstructor(UsbDevice.class);
97 | driver = ctor.newInstance(usbDevice);
98 | } catch (NoSuchMethodException e) {
99 | throw new RuntimeException(e);
100 | } catch (IllegalArgumentException e) {
101 | throw new RuntimeException(e);
102 | } catch (InstantiationException e) {
103 | throw new RuntimeException(e);
104 | } catch (IllegalAccessException e) {
105 | throw new RuntimeException(e);
106 | } catch (InvocationTargetException e) {
107 | throw new RuntimeException(e);
108 | }
109 | return driver;
110 | }
111 | return null;
112 | }
113 |
114 | }
115 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbSerialRuntimeException.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2011 Google Inc.
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | */
19 |
20 | package com.hoho.android.usbserial.driver;
21 |
22 | /**
23 | * Generic unchecked exception for the usbserial package.
24 | *
25 | * @author mike wakerly (opensource@hoho.com)
26 | */
27 | @SuppressWarnings("serial")
28 | public class UsbSerialRuntimeException extends RuntimeException {
29 |
30 | public UsbSerialRuntimeException() {
31 | super();
32 | }
33 |
34 | public UsbSerialRuntimeException(String detailMessage, Throwable throwable) {
35 | super(detailMessage, throwable);
36 | }
37 |
38 | public UsbSerialRuntimeException(String detailMessage) {
39 | super(detailMessage);
40 | }
41 |
42 | public UsbSerialRuntimeException(Throwable throwable) {
43 | super(throwable);
44 | }
45 |
46 | }
47 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/util/HexDump.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2006 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.hoho.android.usbserial.util;
18 |
19 | /**
20 | * Clone of Android's HexDump class, for use in debugging. Cosmetic changes
21 | * only.
22 | */
23 | public class HexDump {
24 | private final static char[] HEX_DIGITS = {
25 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
26 | };
27 |
28 | public static String dumpHexString(byte[] array) {
29 | return dumpHexString(array, 0, array.length);
30 | }
31 |
32 | public static String dumpHexString(byte[] array, int offset, int length) {
33 | StringBuilder result = new StringBuilder();
34 |
35 | byte[] line = new byte[16];
36 | int lineIndex = 0;
37 |
38 | result.append("\n0x");
39 | result.append(toHexString(offset));
40 |
41 | for (int i = offset; i < offset + length; i++) {
42 | if (lineIndex == 16) {
43 | result.append(" ");
44 |
45 | for (int j = 0; j < 16; j++) {
46 | if (line[j] > ' ' && line[j] < '~') {
47 | result.append(new String(line, j, 1));
48 | } else {
49 | result.append(".");
50 | }
51 | }
52 |
53 | result.append("\n0x");
54 | result.append(toHexString(i));
55 | lineIndex = 0;
56 | }
57 |
58 | byte b = array[i];
59 | result.append(" ");
60 | result.append(HEX_DIGITS[(b >>> 4) & 0x0F]);
61 | result.append(HEX_DIGITS[b & 0x0F]);
62 |
63 | line[lineIndex++] = b;
64 | }
65 |
66 | if (lineIndex != 16) {
67 | int count = (16 - lineIndex) * 3;
68 | count++;
69 | for (int i = 0; i < count; i++) {
70 | result.append(" ");
71 | }
72 |
73 | for (int i = 0; i < lineIndex; i++) {
74 | if (line[i] > ' ' && line[i] < '~') {
75 | result.append(new String(line, i, 1));
76 | } else {
77 | result.append(".");
78 | }
79 | }
80 | }
81 |
82 | return result.toString();
83 | }
84 |
85 | public static String toHexString(byte b) {
86 | return toHexString(toByteArray(b));
87 | }
88 |
89 | public static String toHexString(byte[] array) {
90 | return toHexString(array, 0, array.length);
91 | }
92 |
93 | public static String toHexString(byte[] array, int offset, int length) {
94 | char[] buf = new char[length * 2];
95 |
96 | int bufIndex = 0;
97 | for (int i = offset; i < offset + length; i++) {
98 | byte b = array[i];
99 | buf[bufIndex++] = HEX_DIGITS[(b >>> 4) & 0x0F];
100 | buf[bufIndex++] = HEX_DIGITS[b & 0x0F];
101 | }
102 |
103 | return new String(buf);
104 | }
105 |
106 | public static String toHexString(int i) {
107 | return toHexString(toByteArray(i));
108 | }
109 |
110 | public static String toHexString(short i) {
111 | return toHexString(toByteArray(i));
112 | }
113 |
114 | public static byte[] toByteArray(byte b) {
115 | byte[] array = new byte[1];
116 | array[0] = b;
117 | return array;
118 | }
119 |
120 | public static byte[] toByteArray(int i) {
121 | byte[] array = new byte[4];
122 |
123 | array[3] = (byte) (i & 0xFF);
124 | array[2] = (byte) ((i >> 8) & 0xFF);
125 | array[1] = (byte) ((i >> 16) & 0xFF);
126 | array[0] = (byte) ((i >> 24) & 0xFF);
127 |
128 | return array;
129 | }
130 |
131 | public static byte[] toByteArray(short i) {
132 | byte[] array = new byte[2];
133 |
134 | array[1] = (byte) (i & 0xFF);
135 | array[0] = (byte) ((i >> 8) & 0xFF);
136 |
137 | return array;
138 | }
139 |
140 | private static int toByte(char c) {
141 | if (c >= '0' && c <= '9')
142 | return (c - '0');
143 | if (c >= 'A' && c <= 'F')
144 | return (c - 'A' + 10);
145 | if (c >= 'a' && c <= 'f')
146 | return (c - 'a' + 10);
147 |
148 | throw new RuntimeException("Invalid hex char '" + c + "'");
149 | }
150 |
151 | public static byte[] hexStringToByteArray(String hexString) {
152 | int length = hexString.length();
153 | byte[] buffer = new byte[length / 2];
154 |
155 | for (int i = 0; i < length; i += 2) {
156 | buffer[i / 2] = (byte) ((toByte(hexString.charAt(i)) << 4) | toByte(hexString
157 | .charAt(i + 1)));
158 | }
159 |
160 | return buffer;
161 | }
162 | }
163 |
--------------------------------------------------------------------------------
/Android/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/util/SerialInputOutputManager.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2011-2013 Google Inc.
2 | * Copyright 2013 mike wakerly
3 | *
4 | * This library is free software; you can redistribute it and/or
5 | * modify it under the terms of the GNU Lesser General Public
6 | * License as published by the Free Software Foundation; either
7 | * version 2.1 of the License, or (at your option) any later version.
8 | *
9 | * This library is distributed in the hope that it will be useful,
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 | * Lesser General Public License for more details.
13 | *
14 | * You should have received a copy of the GNU Lesser General Public
15 | * License along with this library; if not, write to the Free Software
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 | * USA.
18 | *
19 | * Project home page: https://github.com/mik3y/usb-serial-for-android
20 | */
21 |
22 | package com.hoho.android.usbserial.util;
23 |
24 | import android.hardware.usb.UsbRequest;
25 | import android.util.Log;
26 |
27 | import com.hoho.android.usbserial.driver.UsbSerialPort;
28 |
29 | import java.io.IOException;
30 | import java.nio.ByteBuffer;
31 |
32 | /**
33 | * Utility class which services a {@link UsbSerialPort} in its {@link #run()}
34 | * method.
35 | *
36 | * @author mike wakerly (opensource@hoho.com)
37 | */
38 | public class SerialInputOutputManager implements Runnable {
39 |
40 | private static final String TAG = SerialInputOutputManager.class.getSimpleName();
41 | private static final boolean DEBUG = true;
42 |
43 | private static final int READ_WAIT_MILLIS = 200;
44 | private static final int BUFSIZ = 4096;
45 |
46 | private final UsbSerialPort mDriver;
47 |
48 | private final ByteBuffer mReadBuffer = ByteBuffer.allocate(BUFSIZ);
49 |
50 | // Synchronized by 'mWriteBuffer'
51 | private final ByteBuffer mWriteBuffer = ByteBuffer.allocate(BUFSIZ);
52 |
53 | private enum State {
54 | STOPPED,
55 | RUNNING,
56 | STOPPING
57 | }
58 |
59 | // Synchronized by 'this'
60 | private State mState = State.STOPPED;
61 |
62 | // Synchronized by 'this'
63 | private Listener mListener;
64 |
65 | public interface Listener {
66 | /**
67 | * Called when new incoming data is available.
68 | */
69 | public void onNewData(byte[] data);
70 |
71 | /**
72 | * Called when {@link SerialInputOutputManager#run()} aborts due to an
73 | * error.
74 | */
75 | public void onRunError(Exception e);
76 | }
77 |
78 | /**
79 | * Creates a new instance with no listener.
80 | */
81 | public SerialInputOutputManager(UsbSerialPort driver) {
82 | this(driver, null);
83 | }
84 |
85 | /**
86 | * Creates a new instance with the provided listener.
87 | */
88 | public SerialInputOutputManager(UsbSerialPort driver, Listener listener) {
89 | mDriver = driver;
90 | mListener = listener;
91 | }
92 |
93 | public synchronized void setListener(Listener listener) {
94 | mListener = listener;
95 | }
96 |
97 | public synchronized Listener getListener() {
98 | return mListener;
99 | }
100 |
101 | public void writeAsync(byte[] data) {
102 | synchronized (mWriteBuffer) {
103 | mWriteBuffer.put(data);
104 | }
105 | }
106 |
107 | public synchronized void stop() {
108 | if (getState() == State.RUNNING) {
109 | Log.i(TAG, "Stop requested");
110 | mState = State.STOPPING;
111 | }
112 | }
113 |
114 | private synchronized State getState() {
115 | return mState;
116 | }
117 |
118 | /**
119 | * Continuously services the read and write buffers until {@link #stop()} is
120 | * called, or until a driver exception is raised.
121 | *
122 | * NOTE(mikey): Uses inefficient read/write-with-timeout.
123 | * TODO(mikey): Read asynchronously with {@link UsbRequest#queue(ByteBuffer, int)}
124 | */
125 | @Override
126 | public void run() {
127 | synchronized (this) {
128 | if (getState() != State.STOPPED) {
129 | throw new IllegalStateException("Already running.");
130 | }
131 | mState = State.RUNNING;
132 | }
133 |
134 | Log.i(TAG, "Running ..");
135 | try {
136 | while (true) {
137 | if (getState() != State.RUNNING) {
138 | Log.i(TAG, "Stopping mState=" + getState());
139 | break;
140 | }
141 | step();
142 | }
143 | } catch (Exception e) {
144 | Log.w(TAG, "Run ending due to exception: " + e.getMessage(), e);
145 | final Listener listener = getListener();
146 | if (listener != null) {
147 | listener.onRunError(e);
148 | }
149 | } finally {
150 | synchronized (this) {
151 | mState = State.STOPPED;
152 | Log.i(TAG, "Stopped.");
153 | }
154 | }
155 | }
156 |
157 | private void step() throws IOException {
158 | // Handle incoming data.
159 | int len = mDriver.read(mReadBuffer.array(), READ_WAIT_MILLIS);
160 | if (len > 0) {
161 | if (DEBUG) Log.d(TAG, "Read data len=" + len);
162 | final Listener listener = getListener();
163 | if (listener != null) {
164 | final byte[] data = new byte[len];
165 | mReadBuffer.get(data, 0, len);
166 | listener.onNewData(data);
167 | }
168 | mReadBuffer.clear();
169 | }
170 |
171 | // Handle outgoing data.
172 | byte[] outBuff = null;
173 | synchronized (mWriteBuffer) {
174 | len = mWriteBuffer.position();
175 | if (len > 0) {
176 | outBuff = new byte[len];
177 | mWriteBuffer.rewind();
178 | mWriteBuffer.get(outBuff, 0, len);
179 | mWriteBuffer.clear();
180 | }
181 | }
182 | if (outBuff != null) {
183 | if (DEBUG) {
184 | Log.d(TAG, "Writing data len=" + len);
185 | }
186 | mDriver.write(outBuff, READ_WAIT_MILLIS);
187 | }
188 | }
189 |
190 | }
191 |
--------------------------------------------------------------------------------
/Arduino/alcohol_sensor/alcohol_sensor.ino:
--------------------------------------------------------------------------------
1 | #define COUNT_MAX 10
2 | int index = 0;
3 | float values[COUNT_MAX];
4 |
5 | void setup() {
6 | Serial.begin(9600);
7 |
8 | initialize();
9 | delay(3000);
10 | }
11 |
12 | void loop() {
13 | float vol;
14 | int sensorValue = analogRead(A0); // read data
15 | values[index] = sensorValue;
16 |
17 | // calc average and display value
18 | if(index >= COUNT_MAX - 1) {
19 | float average = calcAverage();
20 | float bac = pow(((-3.757)*pow(10, -7))*average, 2) + 0.0008613*average -0.3919;
21 |
22 | Serial.print("a");
23 | Serial.print(bac, 4);
24 | Serial.print("z");
25 |
26 | index=0;
27 | } else {
28 | index++;
29 | }
30 |
31 | delay(100); // prepare next read
32 | }
33 |
34 | void initialize() {
35 | for(int i=0; i https://www.adafruit.com/products/1748
7 | ----> https://www.adafruit.com/products/1749
8 |
9 | These sensors use I2C to communicate, 2 pins are required to
10 | interface
11 | Adafruit invests time and resources providing this open source code,
12 | please support Adafruit and open-source hardware by purchasing
13 | products from Adafruit!
14 |
15 | Written by Limor Fried/Ladyada for Adafruit Industries.
16 | BSD license, all text above must be included in any redistribution
17 | ****************************************************/
18 |
19 | #include
20 | #include
21 | #include "U8glib.h"
22 |
23 | Adafruit_MLX90614 mlx = Adafruit_MLX90614();
24 |
25 | ///////////////////////////////////////////////////////////////////
26 | //----- OLED instance
27 | // IMPORTANT NOTE: The complete list of supported devices
28 | // with all constructor calls is here: http://code.google.com/p/u8glib/wiki/device
29 | U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE|U8G_I2C_OPT_DEV_0); // I2C / TWI
30 | ///////////////////////////////////////////////////////////////////
31 |
32 | // Remember received data
33 | #define INPUT_BUFFER_LEN 3
34 | char inputBuffer[INPUT_BUFFER_LEN];
35 | // Remember temperature
36 | int iRememberedTemp = 0;
37 |
38 |
39 | void setup() {
40 | Serial.begin(9600);
41 | mlx.begin();
42 | for(int i=0; i 0) {
116 | String strTemp2 = String("");
117 | strTemp2 += iRememberedTemp;
118 | char buff[5];
119 | strTemp2.toCharArray(buff, 5);
120 | buff[2] = 0x27;
121 | buff[3] = 'C';
122 | buff[4] = 0x00;
123 |
124 | u8g.drawStr(3, 40, "Prev: ");
125 | u8g.drawStr(55, 40, buff);
126 | }
127 | } while( u8g.nextPage() );
128 | }
129 |
130 |
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Arduino-Serial-Controller
2 | Connect arduino to Android with OTG cable. Arduino serial controller helps you to communicate with arduino.
3 |
4 | This project uses usb-serial-for-android driver. Get details from below 2 repository.
5 | https://github.com/mik3y/usb-serial-for-android
6 | https://github.com/andreasb242/usb-serial-for-android
7 |
8 | To compile with USB-Serial driver, you must import below path to your project as external source link.
9 |
10 |
11 | Arduino-Serial-Controller/Android/usbSerialForAndroid/src/main/java
12 |
--------------------------------------------------------------------------------