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usb-serial-for-android
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improve setParameter() error handling 

harmonize exception messages, more UI friendly messages
distinguish IllegalArgumentException and UnsupportedOperationException
This commit is contained in:
kai-morich 2019-11-02 13:08:03 +01:00
parent 18b5b6e648
commit 5c6748e1b8
10 changed files with 92 additions and 110 deletions
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51
usbSerialForAndroid/src/androidTest/java/com/hoho/android/usbserial/DeviceTest.java
View File

@ -553,33 +553,12 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
// invalid values
try {
usbParameters(-1, 8, 1, UsbSerialPort.PARITY_NONE);
if (usbSerialDriver instanceof Ch34xSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof FtdiSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof ProlificSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof Cp21xxSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof CdcAcmSerialDriver)
; // todo: add range check in driver
else
fail("invalid baudrate 0");
} catch (IOException ignored) { // cp2105 second port
fail("invalid baud rate");
} catch (IllegalArgumentException ignored) {
}
try {
usbParameters(0, 8, 1, UsbSerialPort.PARITY_NONE);
if (usbSerialDriver instanceof ProlificSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof Cp21xxSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof CdcAcmSerialDriver)
; // todo: add range check in driver
else
fail("invalid baudrate 0");
} catch (ArithmeticException ignored) { // ch340
} catch (IOException ignored) { // cp2105 second port
fail("invalid baud rate");
} catch (IllegalArgumentException ignored) {
}
try {
@ -593,8 +572,9 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
else if (usbSerialDriver instanceof CdcAcmSerialDriver)
;
else
fail("invalid baudrate 0");
} catch (IOException ignored) { // ch340
fail("invalid baudrate 1");
} catch (UnsupportedOperationException ignored) { // ch340
} catch (IOException ignored) { // cp2105 second port
} catch (IllegalArgumentException ignored) {
}
try {
@ -679,12 +659,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
for(int i: new int[] {0, 4, 9}) {
try {
usbParameters(19200, i, 1, UsbSerialPort.PARITY_NONE);
if (usbSerialDriver instanceof ProlificSerialDriver)
; // todo: add range check in driver
else if (usbSerialDriver instanceof CdcAcmSerialDriver)
; // todo: add range check in driver
else
fail("invalid databits "+i);
fail("invalid databits "+i);
} catch (IllegalArgumentException ignored) {
}
}
@ -721,7 +696,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
usbWrite(new byte[]{(byte) 0xff});
data = telnetRead(2);
assertThat("19000/7N1", data, equalTo(new byte[]{(byte) 0x80, (byte) 0xff}));
} catch (IllegalArgumentException e) {
} catch (UnsupportedOperationException e) {
if(!isCp21xxRestrictedPort)
throw e;
}
@ -732,7 +707,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
usbWrite(new byte[]{(byte) 0xff});
data = telnetRead(2);
assertThat("19000/6N1", data, equalTo(new byte[]{(byte) 0xc0, (byte) 0xff}));
} catch (IllegalArgumentException e) {
} catch (UnsupportedOperationException e) {
if (!(isCp21xxRestrictedPort || usbSerialDriver instanceof FtdiSerialDriver))
throw e;
}
@ -743,7 +718,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
usbWrite(new byte[] {(byte)0xff});
data = telnetRead(2);
assertThat("19000/5N1", data, equalTo(new byte[] {(byte)0xe0, (byte)0xff}));
} catch (IllegalArgumentException e) {
} catch (UnsupportedOperationException e) {
if (!(isCp21xxRestrictedPort || usbSerialDriver instanceof FtdiSerialDriver))
throw e;
}
@ -774,11 +749,11 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
try {
usbParameters(19200, 8, 1, UsbSerialPort.PARITY_MARK);
fail("parity mark");
} catch (IllegalArgumentException ignored) {}
} catch (UnsupportedOperationException ignored) {}
try {
usbParameters(19200, 8, 1, UsbSerialPort.PARITY_SPACE);
fail("parity space");
} catch (IllegalArgumentException ignored) {}
} catch (UnsupportedOperationException ignored) {}
return;
// test below not possible as it requires unsupported 7 dataBits
}
@ -894,7 +869,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
usbWrite(new byte[]{(byte) 0x41, (byte) 0xf9});
data = telnetRead(2);
assertThat("19200/8N1", data, equalTo(new byte[]{1, 11}));
} catch(IllegalArgumentException e) {
} catch(UnsupportedOperationException e) {
if(!isCp21xxRestrictedPort)
throw e;
}
@ -902,7 +877,7 @@ public class DeviceTest implements SerialInputOutputManager.Listener {
usbParameters(19200, 8, UsbSerialPort.STOPBITS_1_5, UsbSerialPort.PARITY_NONE);
// todo: could create similar test for 1.5 stopbits, by reading at double speed
// but only some devices support 1.5 stopbits and it is basically not used any more
} catch(IllegalArgumentException ignored) {
} catch(UnsupportedOperationException ignored) {
}
}
}

31
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
View File

@ -134,14 +134,14 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
Log.d(TAG, "data iface=" + mDataInterface);
if (!mConnection.claimInterface(mControlInterface, true)) {
throw new IOException("Could not claim shared control/data interface.");
throw new IOException("Could not claim shared control/data interface");
}
int endCount = mControlInterface.getEndpointCount();
if (endCount < 3) {
Log.d(TAG,"not enough endpoints - need 3. count=" + mControlInterface.getEndpointCount());
throw new IOException("Insufficient number of endpoints(" + mControlInterface.getEndpointCount() + ")");
throw new IOException("Insufficient number of endpoints (" + mControlInterface.getEndpointCount() + ")");
}
// Analyse endpoints for their properties
@ -198,26 +198,26 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
}
if(mControlInterface == null) {
throw new IOException("no control interface.");
throw new IOException("No control interface");
}
Log.d(TAG, "Control iface=" + mControlInterface);
if (!mConnection.claimInterface(mControlInterface, true)) {
throw new IOException("Could not claim control interface.");
throw new IOException("Could not claim control interface");
}
mControlEndpoint = mControlInterface.getEndpoint(0);
if (mControlEndpoint.getDirection() != UsbConstants.USB_DIR_IN || mControlEndpoint.getType() != UsbConstants.USB_ENDPOINT_XFER_INT) {
throw new IOException("invalid control endpoint");
throw new IOException("Invalid control endpoint");
}
if(mDataInterface == null) {
throw new IOException("no data interface.");
throw new IOException("No data interface");
}
Log.d(TAG, "data iface=" + mDataInterface);
if (!mConnection.claimInterface(mDataInterface, true)) {
throw new IOException("Could not claim data interface.");
throw new IOException("Could not claim data interface");
}
mReadEndpoint = null;
@ -230,7 +230,7 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
mWriteEndpoint = ep;
}
if (mReadEndpoint == null || mWriteEndpoint == null) {
throw new IOException("Could not get read&write endpoints.");
throw new IOException("Could not get read&write endpoints");
}
}
@ -238,7 +238,7 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
int len = mConnection.controlTransfer(
USB_RT_ACM, request, value, mControlIndex, buf, buf != null ? buf.length : 0, 5000);
if(len < 0) {
throw new IOException("controlTransfer failed.");
throw new IOException("controlTransfer failed");
}
return len;
}
@ -276,7 +276,7 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
throw new IOException("Error queueing request");
}
mUsbRequest = request;
final UsbRequest response = mConnection.requestWait();
@ -340,12 +340,18 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
@Override
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException {
if(baudRate <= 0) {
throw new IllegalArgumentException("Invalid baud rate: " + baudRate);
}
if(dataBits < DATABITS_5 || dataBits > DATABITS_8) {
throw new IllegalArgumentException("Invalid data bits: " + dataBits);
}
byte stopBitsByte;
switch (stopBits) {
case STOPBITS_1: stopBitsByte = 0; break;
case STOPBITS_1_5: stopBitsByte = 1; break;
case STOPBITS_2: stopBitsByte = 2; break;
default: throw new IllegalArgumentException("Bad value for stopBits: " + stopBits);
default: throw new IllegalArgumentException("Invalid stop bits: " + stopBits);
}
byte parityBitesByte;
@ -355,9 +361,8 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
case PARITY_EVEN: parityBitesByte = 2; break;
case PARITY_MARK: parityBitesByte = 3; break;
case PARITY_SPACE: parityBitesByte = 4; break;
default: throw new IllegalArgumentException("Bad value for parity: " + parity);
default: throw new IllegalArgumentException("Invalid parity: " + parity);
}
byte[] msg = {
(byte) ( baudRate & 0xff),
(byte) ((baudRate >> 8 ) & 0xff),

32
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java
View File

@ -99,7 +99,7 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
@Override
public void open(UsbDeviceConnection connection) throws IOException {
if (mConnection != null) {
throw new IOException("Already opened.");
throw new IOException("Already open");
}
mConnection = connection;
@ -108,7 +108,7 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
for (int i = 0; i < mDevice.getInterfaceCount(); i++) {
UsbInterface usbIface = mDevice.getInterface(i);
if (!mConnection.claimInterface(usbIface, true)) {
throw new IOException("Could not claim data interface.");
throw new IOException("Could not claim data interface");
}
}
@ -166,7 +166,7 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
throw new IOException("Error queueing request");
}
mUsbRequest = request;
final UsbRequest response = mConnection.requestWait();
@ -275,7 +275,7 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
checkState("init #1", 0x5f, 0, new int[]{-1 /* 0x27, 0x30 */, 0x00});
if (controlOut(0xa1, 0, 0) < 0) {
throw new IOException("init failed! #2");
throw new IOException("Init failed: #2");
}
setBaudRate(DEFAULT_BAUD_RATE);
@ -283,13 +283,13 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
checkState("init #4", 0x95, 0x2518, new int[]{-1 /* 0x56, c3*/, 0x00});
if (controlOut(0x9a, 0x2518, LCR_ENABLE_RX | LCR_ENABLE_TX | LCR_CS8) < 0) {
throw new IOException("init failed! #5");
throw new IOException("Init failed: #5");
}
checkState("init #6", 0x95, 0x0706, new int[]{0xff, 0xee});
if (controlOut(0xa1, 0x501f, 0xd90a) < 0) {
throw new IOException("init failed! #7");
throw new IOException("Init failed: #7");
}
setBaudRate(DEFAULT_BAUD_RATE);
@ -313,25 +313,27 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
}
if (factor > 0xfff0) {
throw new IOException("Baudrate " + baudRate + " not supported");
throw new UnsupportedOperationException("Unsupported baud rate: " + baudRate);
}
factor = 0x10000 - factor;
int ret = controlOut(0x9a, 0x1312, (int) ((factor & 0xff00) | divisor));
if (ret < 0) {
throw new IOException("Error setting baud rate. #1)");
throw new IOException("Error setting baud rate: #1)");
}
ret = controlOut(0x9a, 0x0f2c, (int) (factor & 0xff));
if (ret < 0) {
throw new IOException("Error setting baud rate. #2");
throw new IOException("Error setting baud rate: #2");
}
}
@Override
public void setParameters(int baudRate, int dataBits, int stopBits, int parity)
throws IOException {
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException {
if(baudRate <= 0) {
throw new IllegalArgumentException("Invalid baud rate: " + baudRate);
}
setBaudRate(baudRate);
int lcr = LCR_ENABLE_RX | LCR_ENABLE_TX;
@ -350,7 +352,7 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
lcr |= LCR_CS8;
break;
default:
throw new IllegalArgumentException("Unknown dataBits value: " + dataBits);
throw new IllegalArgumentException("Invalid data bits: " + dataBits);
}
switch (parity) {
@ -369,19 +371,19 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
lcr |= LCR_ENABLE_PAR | LCR_MARK_SPACE | LCR_PAR_EVEN;
break;
default:
throw new IllegalArgumentException("Unknown parity value: " + parity);
throw new IllegalArgumentException("Invalid parity: " + parity);
}
switch (stopBits) {
case STOPBITS_1:
break;
case STOPBITS_1_5:
throw new IllegalArgumentException("Unsupported stopBits value: 1.5");
throw new UnsupportedOperationException("Unsupported stop bits: 1.5");
case STOPBITS_2:
lcr |= LCR_STOP_BITS_2;
break;
default:
throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
throw new IllegalArgumentException("Invalid stop bits: " + stopBits);
}
int ret = controlOut(0x9a, 0x2518, lcr);

3
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CommonUsbSerialPort.java
View File

@ -132,8 +132,7 @@ abstract class CommonUsbSerialPort implements UsbSerialPort {
public abstract int write(final byte[] src, final int timeoutMillis) throws IOException;
@Override
public abstract void setParameters(
int baudRate, int dataBits, int stopBits, int parity) throws IOException;
public abstract void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException;
@Override
public abstract boolean getCD() throws IOException;

32
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Cp21xxSerialDriver.java
View File

@ -135,7 +135,7 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
@Override
public void open(UsbDeviceConnection connection) throws IOException {
if (mConnection != null) {
throw new IOException("Already opened.");
throw new IOException("Already open");
}
mConnection = connection;
@ -205,7 +205,7 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
throw new IOException("Error queueing request");
}
mUsbRequest = request;
final UsbRequest response = mConnection.requestWait();
@ -276,37 +276,39 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
int ret = mConnection.controlTransfer(REQTYPE_HOST_TO_DEVICE, SILABSER_SET_BAUDRATE,
0, mPortNumber, data, 4, USB_WRITE_TIMEOUT_MILLIS);
if (ret < 0) {
throw new IOException("Error setting baud rate.");
throw new IOException("Error setting baud rate");
}
}
@Override
public void setParameters(int baudRate, int dataBits, int stopBits, int parity)
throws IOException {
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException {
if(baudRate <= 0) {
throw new IllegalArgumentException("Invalid baud rate: " + baudRate);
}
setBaudRate(baudRate);
int configDataBits = 0;
switch (dataBits) {
case DATABITS_5:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported dataBits value: " + dataBits);
throw new UnsupportedOperationException("Unsupported data bits: " + dataBits);
configDataBits |= 0x0500;
break;
case DATABITS_6:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported dataBits value: " + dataBits);
throw new UnsupportedOperationException("Unsupported data bits: " + dataBits);
configDataBits |= 0x0600;
break;
case DATABITS_7:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported dataBits value: " + dataBits);
throw new UnsupportedOperationException("Unsupported data bits: " + dataBits);
configDataBits |= 0x0700;
break;
case DATABITS_8:
configDataBits |= 0x0800;
break;
default:
throw new IllegalArgumentException("Unknown dataBits value: " + dataBits);
throw new IllegalArgumentException("Invalid data bits: " + dataBits);
}
switch (parity) {
@ -320,30 +322,30 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
break;
case PARITY_MARK:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported parity value: mark");
throw new UnsupportedOperationException("Unsupported parity: mark");
configDataBits |= 0x0030;
break;
case PARITY_SPACE:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported parity value: space");
throw new UnsupportedOperationException("Unsupported parity: space");
configDataBits |= 0x0040;
break;
default:
throw new IllegalArgumentException("Unknown parity value: " + parity);
throw new IllegalArgumentException("Invalid parity: " + parity);
}
switch (stopBits) {
case STOPBITS_1:
break;
case STOPBITS_1_5:
throw new IllegalArgumentException("Unsupported stopBits value: 1.5");
throw new UnsupportedOperationException("Unsupported stop bits: 1.5");
case STOPBITS_2:
if(mIsRestrictedPort)
throw new IllegalArgumentException("Unsupported stopBits value: 2");
throw new UnsupportedOperationException("Unsupported stop bits: 2");
configDataBits |= 2;
break;
default:
throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
throw new IllegalArgumentException("Invalid stop bits: " + stopBits);
}
setConfigSingle(SILABSER_SET_LINE_CTL_REQUEST_CODE, configDataBits);
}

18
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
View File

@ -287,7 +287,7 @@ public class FtdiSerialDriver implements UsbSerialDriver {
try {
request.initialize(mConnection, endpoint);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
throw new IOException("Error queueing request");
}
final UsbRequest response = mConnection.requestWait();
@ -360,21 +360,23 @@ public class FtdiSerialDriver implements UsbSerialDriver {
}
@Override
public void setParameters(int baudRate, int dataBits, int stopBits, int parity)
throws IOException {
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException {
if(baudRate <= 0) {
throw new IllegalArgumentException("Invalid baud rate: " + baudRate);
}
setBaudRate(baudRate);
int config = 0;
switch (dataBits) {
case DATABITS_5:
case DATABITS_6:
throw new IllegalArgumentException("Unsupported dataBits value: " + dataBits);
throw new UnsupportedOperationException("Unsupported data bits: " + dataBits);
case DATABITS_7:
case DATABITS_8:
config |= dataBits;
break;
default:
throw new IllegalArgumentException("Unknown dataBits value: " + dataBits);
throw new IllegalArgumentException("Invalid data bits: " + dataBits);
}
switch (parity) {
@ -394,7 +396,7 @@ public class FtdiSerialDriver implements UsbSerialDriver {
config |= (0x04 << 8);
break;
default:
throw new IllegalArgumentException("Unknown parity value: " + parity);
throw new IllegalArgumentException("Invalid parity: " + parity);
}
switch (stopBits) {
@ -402,12 +404,12 @@ public class FtdiSerialDriver implements UsbSerialDriver {
config |= (0x00 << 11);
break;
case STOPBITS_1_5:
throw new IllegalArgumentException("Unsupported stopBits value: 1.5");
throw new UnsupportedOperationException("Unsupported stop bits: 1.5");
case STOPBITS_2:
config |= (0x02 << 11);
break;
default:
throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
throw new IllegalArgumentException("Invalid stop bits: " + stopBits);
}
int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE,

23
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/ProlificSerialDriver.java
View File

@ -380,7 +380,7 @@ public class ProlificSerialDriver implements UsbSerialDriver {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
throw new IOException("Error queueing request");
}
final UsbRequest response = mConnection.requestWait();
@ -439,8 +439,7 @@ public class ProlificSerialDriver implements UsbSerialDriver {
}
@Override
public void setParameters(int baudRate, int dataBits, int stopBits,
int parity) throws IOException {
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException {
if ((mBaudRate == baudRate) && (mDataBits == dataBits)
&& (mStopBits == stopBits) && (mParity == parity)) {
// Make sure no action is performed if there is nothing to change
@ -449,6 +448,9 @@ public class ProlificSerialDriver implements UsbSerialDriver {
byte[] lineRequestData = new byte[7];
if(baudRate <= 0) {
throw new IllegalArgumentException("Invalid baud rate: " + baudRate);
}
lineRequestData[0] = (byte) (baudRate & 0xff);
lineRequestData[1] = (byte) ((baudRate >> 8) & 0xff);
lineRequestData[2] = (byte) ((baudRate >> 16) & 0xff);
@ -458,44 +460,39 @@ public class ProlificSerialDriver implements UsbSerialDriver {
case STOPBITS_1:
lineRequestData[4] = 0;
break;
case STOPBITS_1_5:
lineRequestData[4] = 1;
break;
case STOPBITS_2:
lineRequestData[4] = 2;
break;
default:
throw new IllegalArgumentException("Unknown stopBits value: " + stopBits);
throw new IllegalArgumentException("Invalid stop bits: " + stopBits);
}
switch (parity) {
case PARITY_NONE:
lineRequestData[5] = 0;
break;
case PARITY_ODD:
lineRequestData[5] = 1;
break;
case PARITY_EVEN:
lineRequestData[5] = 2;
break;
case PARITY_MARK:
lineRequestData[5] = 3;
break;
case PARITY_SPACE:
lineRequestData[5] = 4;
break;
default:
throw new IllegalArgumentException("Unknown parity value: " + parity);
throw new IllegalArgumentException("Invalid parity: " + parity);
}
if(dataBits < DATABITS_5 || dataBits > DATABITS_8) {
throw new IllegalArgumentException("Invalid data bits: " + dataBits);
}
lineRequestData[6] = (byte) dataBits;
ctrlOut(SET_LINE_REQUEST, 0, 0, lineRequestData);

2
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbId.java
View File

@ -76,7 +76,7 @@ public final class UsbId {
public static final int ARM_MBED = 0x0204;
private UsbId() {
throw new IllegalAccessError("Non-instantiable class.");
throw new IllegalAccessError("Non-instantiable class");
}
}

4
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/UsbSerialPort.java
View File

@ -145,9 +145,9 @@ public interface UsbSerialPort {
* {@link #PARITY_EVEN}, {@link #PARITY_MARK}, or
* {@link #PARITY_SPACE}.
* @throws IOException on error setting the port parameters
* @throws UnsupportedOperationException if not supported by a specific device
*/
public void setParameters(
int baudRate, int dataBits, int stopBits, int parity) throws IOException;
public void setParameters(int baudRate, int dataBits, int stopBits, int parity) throws IOException;
/**
* Gets the CD (Carrier Detect) bit from the underlying UART.

6
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/util/SerialInputOutputManager.java
View File

@ -125,12 +125,12 @@ public class SerialInputOutputManager implements Runnable {
public void run() {
synchronized (this) {
if (getState() != State.STOPPED) {
throw new IllegalStateException("Already running.");
throw new IllegalStateException("Already running");
}
mState = State.RUNNING;
}
Log.i(TAG, "Running ..");
Log.i(TAG, "Running ...");
try {
while (true) {
if (getState() != State.RUNNING) {
@ -148,7 +148,7 @@ public class SerialInputOutputManager implements Runnable {
} finally {
synchronized (this) {
mState = State.STOPPED;
Log.i(TAG, "Stopped.");
Log.i(TAG, "Stopped");
}
}
}