@Override
public void open() throws IOException {
Log.d(TAG, "claiming interfaces, count=" + mDevice.getInterfaceCount());
Log.d(TAG, "Claiming control interface.");
mControlInterface = mDevice.getInterface(0);
Log.d(TAG, "Control iface=" + mControlInterface);
// class should be USB_CLASS_COMM
if (!mConnection.claimInterface(mControlInterface, true)) {
throw new IOException("Could not claim control interface.");
}
mControlEndpoint = mControlInterface.getEndpoint(0);
Log.d(TAG, "Control endpoint direction: " + mControlEndpoint.getDirection());
Log.d(TAG, "Claiming data interface.");
mDataInterface = mDevice.getInterface(1);
Log.d(TAG, "data iface=" + mDataInterface);
// class should be USB_CLASS_CDC_DATA
if (!mConnection.claimInterface(mDataInterface, true)) {
throw new IOException("Could not claim data interface.");
}
mReadEndpoint = mDataInterface.getEndpoint(1);
Log.d(TAG, "Read endpoint direction: " + mReadEndpoint.getDirection());
mWriteEndpoint = mDataInterface.getEndpoint(0);
Log.d(TAG, "Write endpoint direction: " + mWriteEndpoint.getDirection());
}
/**
* デバイスの利用開始。
*
* @return null=正常、null以外=エラーメッセージ
*/
public String onStart(UsbDevice device) {
Log.d(TAG, "onStart:" + device);
if (!device.equals(usbDevice)) {
return "No device attach.";
}
if (!usbManager.hasPermission(usbDevice)) {
return "No device permission.";
}
usbConnection = usbManager.openDevice(usbDevice);
// TODO:インターフェースの検出は端折ってます。
UsbInterface usbIf = usbDevice.getInterface(INTERFACE_INDEX);
// EndPointの検索。分かってる場合は直接取り出しても良い。
for (int i = 0; i < usbIf.getEndpointCount(); i++) {
UsbEndpoint ep = usbIf.getEndpoint(i);
Log.d(TAG, "tye=" + ep.getType());
if (ep.getType() == UsbConstants.USB_ENDPOINT_XFER_INT) {
if (ep.getDirection() == UsbConstants.USB_DIR_IN) {
endpointIn = ep;
} else if (ep.getDirection() == UsbConstants.USB_DIR_OUT) {
endpointOut = ep;
}
}
}
if (endpointIn == null || endpointOut == null) {
Log.e(TAG, "Device has not IN/OUT Endpoint.");
return "Device has not IN/OUT Endpoint.";
}
// デバイスの確保
usbConnection.claimInterface(usbIf, true);
isReady = true;
return null;
}
public void usbDeviceDump(UsbDevice usbDevice) {
// Log.d(TAG, "usbDeviceDump " + usbDevice);
if (usbDevice == null) {
Log.e(TAG, "usbDevice is NULL!");
return;
}
int numInterfaces = usbDevice.getInterfaceCount();
// Log.d(TAG, numInterfaces + " interfaces");
Log.d(
TAG,
"Device found: VendorId="
+ usbDevice.getVendorId()
+ " ProductId="
+ usbDevice.getProductId());
for (int i = 0; i < numInterfaces; i++) {
UsbInterface usbInterface = usbDevice.getInterface(i);
// Log.d(TAG, "\tInterface(" + i + "): class=" + usbInterface.getInterfaceClass() + "
// protocol=" + usbInterface.getInterfaceProtocol());
int numEndpoints = usbInterface.getEndpointCount();
// Log.d(TAG, numEndpoints + " endpoints");
for (int j = 0; j < numEndpoints; j++) {
UsbEndpoint usbEndpoint = usbInterface.getEndpoint(j);
// Log.d(TAG, "\t\tEndpoint(" + j + ")");
}
}
}
private void setDevice(UsbDevice device) {
mConnection = mUsbManager.openDevice(device);
intf = device.getInterface(0);
UsbEndpoint epOut = null;
UsbEndpoint epIn = null;
UsbEndpoint epEv = null;
// Looking for Bulk Endpoints
for (int i = 0; i < intf.getEndpointCount(); i++) {
UsbEndpoint ep = intf.getEndpoint(i);
if (ep.getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) {
if (ep.getDirection() == UsbConstants.USB_DIR_OUT) {
epOut = ep;
} else {
epIn = ep;
}
}
if (ep.getType() == UsbConstants.USB_ENDPOINT_XFER_INT) {
epEv = ep;
}
}
if (epOut == null || epIn == null || epEv == null) {
throw new IllegalArgumentException("not all endpoints found");
}
mEndpointBulkOut = epOut;
mEndpointBulkIn = epIn;
mEndpointIntr = epEv;
inMaxPS = mEndpointBulkIn.getMaxPacketSize();
}
@Override
protected void initEndpoints() throws IOException {
UsbInterface usbInterface = mDevice.getInterface(0);
if (!mConnection.claimInterface(usbInterface, true)) {
throw new IOException("Error claiming Prolific interface 0");
}
for (int i = 0; i < usbInterface.getEndpointCount(); ++i) {
UsbEndpoint currentEndpoint = usbInterface.getEndpoint(i);
switch (currentEndpoint.getType()) {
case UsbConstants.USB_ENDPOINT_XFER_BULK:
if (currentEndpoint.getDirection() == UsbConstants.USB_DIR_IN) {
mReadEndpoint = currentEndpoint;
} else {
mWriteEndpoint = currentEndpoint;
}
break;
case UsbConstants.USB_ENDPOINT_XFER_INT:
mControlEndpoint = currentEndpoint;
break;
}
}
}
public void setDevice(UsbManager usbManager, UsbDevice usbDevice) {
// Log.d(TAG, "setDevice " + usbDevice);
device = usbDevice;
if (device != null) {
usbDeviceDump(usbDevice);
UsbInterface controlInterface = device.getInterface(1);
endpoint = controlInterface.getEndpoint(0);
UsbDeviceConnection connection = usbManager.openDevice(device);
if (connection != null && connection.claimInterface(controlInterface, true)) {
controlConnection = connection;
serial = UsbSerialDevice.createUsbSerialDevice(device, controlConnection);
boolean t = serial.open();
Log.d("Set DEVICE : ", "" + t);
serial.setBaudRate(9600);
serial.setParity(UsbSerialInterface.PARITY_NONE);
serial.setStopBits(UsbSerialInterface.STOP_BITS_1);
serial.setDataBits(UsbSerialInterface.DATA_BITS_8);
} else {
Log.e(TAG, "open connection FAIL");
controlConnection = null;
}
}
}
public ZBCoordinator(Context context, String actionUsbPermission) {
super();
UsbManager manager = (UsbManager) context.getSystemService(Context.USB_SERVICE);
HashMap<String, UsbDevice> deviceList = manager.getDeviceList();
Iterator<UsbDevice> deviceIterator = deviceList.values().iterator();
UsbDevice device = null;
while (deviceIterator.hasNext()) {
UsbDevice devi = deviceIterator.next();
// TODO Remove hardcoded IDs
if (devi.getProductId() == 0x05dc && devi.getVendorId() == 0x16c0) device = devi;
// TODO Make sure this is the ZBCoordinator using RAW Descriptors
}
PendingIntent mPermissionIntent =
PendingIntent.getBroadcast(context, 0, new Intent(actionUsbPermission), 0);
if (device != null && !manager.hasPermission(device))
manager.requestPermission(device, mPermissionIntent);
if (device != null && manager.hasPermission(device)) {
UsbInterface intf = device.getInterface(0);
this.endpointInt = intf.getEndpoint(0);
this.usbDeviceConnection = manager.openDevice(device);
this.usbDeviceConnection.claimInterface(intf, false);
this.canUse = true;
}
}
public static boolean isCdcDevice(UsbDevice device) {
int iIndex = device.getInterfaceCount();
for (int i = 0; i <= iIndex - 1; i++) {
UsbInterface iface = device.getInterface(i);
if (iface.getInterfaceClass() == UsbConstants.USB_CLASS_CDC_DATA) return true;
}
return false;
}
// searches for an adb interface on the given USB device
private static UsbInterface findAdbInterface(UsbDevice device) {
Log.d(TAG, "findAdbInterface " + device);
int count = device.getInterfaceCount();
for (int i = 0; i < count; i++) {
UsbInterface intf = device.getInterface(i);
if (intf.getInterfaceClass() == 255
&& intf.getInterfaceSubclass() == 66
&& intf.getInterfaceProtocol() == 1) {
return intf;
}
}
return null;
}
/** Disconnect Android from USB */
public void disconnect() {
if (m_connected) {
m_connected = false;
}
if (m_handler != null) {
m_handler.stop();
}
if (m_sender != null && m_sender.is_active()) {
if (m_sender.stop()) {
Log.d(LinkManager.class.getSimpleName(), "There was non-send message !");
// TODO : autre traitement ?
}
}
if (m_receiver != null && m_receiver.is_active()) {
if (m_receiver.stop()) {
Log.d(LinkManager.class.getSimpleName(), "All the message were not handled !");
// TODO : autre traitement ?
}
}
if (m_device != null) {
/* try {
m_device.close();
} catch (IOException e) { }*/
m_device = null;
}
m_listener.UsbStop();
}
@Override
public void open(UsbDeviceConnection connection) throws IOException {
if (mConnection != null) {
throw new IOException("Already open");
}
mConnection = connection;
boolean opened = false;
try {
Log.d(TAG, "claiming interfaces, count=" + mDevice.getInterfaceCount());
mControlInterface = mDevice.getInterface(0);
Log.d(TAG, "Control iface=" + mControlInterface);
// class should be USB_CLASS_COMM
if (!mConnection.claimInterface(mControlInterface, true)) {
throw new IOException("Could not claim control interface.");
}
mControlEndpoint = mControlInterface.getEndpoint(0);
Log.d(TAG, "Control endpoint direction: " + mControlEndpoint.getDirection());
Log.d(TAG, "Claiming data interface.");
mDataInterface = mDevice.getInterface(1);
Log.d(TAG, "data iface=" + mDataInterface);
// class should be USB_CLASS_CDC_DATA
if (!mConnection.claimInterface(mDataInterface, true)) {
throw new IOException("Could not claim data interface.");
}
mReadEndpoint = mDataInterface.getEndpoint(1);
Log.d(TAG, "Read endpoint direction: " + mReadEndpoint.getDirection());
mWriteEndpoint = mDataInterface.getEndpoint(0);
Log.d(TAG, "Write endpoint direction: " + mWriteEndpoint.getDirection());
if (mEnableAsyncReads) {
Log.d(TAG, "Async reads enabled");
} else {
Log.d(TAG, "Async reads disabled.");
}
opened = true;
} finally {
if (!opened) {
mConnection = null;
}
}
}
@Override
public boolean open() {
// Restart the working thread and writeThread if it has been killed before and get and claim
// interface
restartWorkingThread();
restartWriteThread();
if (connection.claimInterface(mInterface, true)) {
Log.i(CLASS_ID, "Interface succesfully claimed");
} else {
Log.i(CLASS_ID, "Interface could not be claimed");
return false;
}
// Assign endpoints
int numberEndpoints = mInterface.getEndpointCount();
for (int i = 0; i <= numberEndpoints - 1; i++) {
UsbEndpoint endpoint = mInterface.getEndpoint(i);
if (endpoint.getType() == UsbConstants.USB_ENDPOINT_XFER_BULK
&& endpoint.getDirection() == UsbConstants.USB_DIR_IN) {
inEndpoint = endpoint;
} else {
outEndpoint = endpoint;
}
}
// Default Setup
if (setControlCommand(XDCVCP_IFC_ENABLE, XDCVCP_UART_ENABLE, null) < 0) return false;
setBaudRate(DEFAULT_BAUDRATE);
if (setControlCommand(XDCVCP_SET_LINE_CTL, XDCVCP_LINE_CTL_DEFAULT, null) < 0) return false;
setFlowControl(UsbSerialInterface.FLOW_CONTROL_OFF);
if (setControlCommand(XDCVCP_SET_MHS, XDCVCP_MHS_DEFAULT, null) < 0) return false;
// Initialize UsbRequest
requestIN = new UsbRequest();
requestIN.initialize(connection, inEndpoint);
// Pass references to the threads
setThreadsParams(requestIN, outEndpoint);
return true;
}
private boolean isCSCID(UsbDevice device) {
if (device.getDeviceClass() == UsbConstants.USB_CLASS_CSCID) return true;
int count = device.getInterfaceCount();
for (int i = 0; i < count; i++) {
UsbInterface iface = device.getInterface(i);
if (iface == null) {
Log.d(TAG, "isCSCID null interface");
continue;
}
Log.d(TAG, "isCSCID iface class:" + iface.getInterfaceClass());
if (iface.getInterfaceClass() == UsbConstants.USB_CLASS_CSCID) {
return true;
}
}
return false;
}
private byte[] getCTL() {
byte[] data = new byte[2];
int response =
connection.controlTransfer(
XDCVCP_REQTYPE_DEVICE2HOST,
XDCVCP_GET_LINE_CTL,
0,
mInterface.getId(),
data,
data.length,
USB_TIMEOUT);
Log.i(CLASS_ID, "Control Transfer Response: " + String.valueOf(response));
return data;
}
private void setDevice(UsbDevice device) {
usbInterfaceFound = null;
endpointOut = null;
endpointIn = null;
for (int i = 0; i < device.getInterfaceCount(); i++) {
UsbInterface usbif = device.getInterface(i);
UsbEndpoint tOut = null;
UsbEndpoint tIn = null;
int tEndpointCnt = usbif.getEndpointCount();
if (tEndpointCnt >= 2) {
for (int j = 0; j < tEndpointCnt; j++) {
if (usbif.getEndpoint(j).getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) {
if (usbif.getEndpoint(j).getDirection() == UsbConstants.USB_DIR_OUT) {
tOut = usbif.getEndpoint(j);
} else if (usbif.getEndpoint(j).getDirection() == UsbConstants.USB_DIR_IN) {
tIn = usbif.getEndpoint(j);
}
}
}
if (tOut != null && tIn != null) {
// This interface have both USB_DIR_OUT
// and USB_DIR_IN of USB_ENDPOINT_XFER_BULK
usbInterfaceFound = usbif;
endpointOut = tOut;
endpointIn = tIn;
}
}
}
if (usbInterfaceFound == null) {
return;
}
deviceFound = device;
if (device != null) {
UsbDeviceConnection connection = usbManager.openDevice(device);
if (connection != null && connection.claimInterface(usbInterfaceFound, true)) {
usbDeviceConnection = connection;
Thread thread = new Thread(this);
thread.start();
} else {
usbDeviceConnection = null;
}
}
}
private int setControlCommand(int request, int value, byte[] data) {
int dataLength = 0;
if (data != null) {
dataLength = data.length;
}
int response =
connection.controlTransfer(
XDCVCP_REQTYPE_HOST2DEVICE,
request,
value,
mInterface.getId(),
data,
dataLength,
USB_TIMEOUT);
Log.i(CLASS_ID, "Control Transfer Response: " + String.valueOf(response));
return response;
}
/**
* Initialize the USB device. Determines endpoints and prepares communication.
*
* @throws IOException if the device cannot be opened
*/
private void initDevice() throws IOException {
Log.d(LOG_TAG, "setDevice " + this.mUsbDevice);
// find interface
if (this.mUsbDevice.getInterfaceCount() != 1) {
Log.e(LOG_TAG, "Could not find interface");
return;
}
mIntf = this.mUsbDevice.getInterface(0);
// device should have two endpoints
if (mIntf.getEndpointCount() != 2) {
Log.e(LOG_TAG, "Could not find endpoints");
return;
}
// endpoints should be of type bulk
UsbEndpoint ep = mIntf.getEndpoint(0);
if (ep.getType() != UsbConstants.USB_ENDPOINT_XFER_BULK) {
Log.e(LOG_TAG, "Endpoint is not of type bulk");
return;
}
// check endpoint direction
if (ep.getDirection() == UsbConstants.USB_DIR_IN) {
mEpIn = mIntf.getEndpoint(0);
mEpOut = mIntf.getEndpoint(1);
} else {
mEpIn = mIntf.getEndpoint(1);
mEpOut = mIntf.getEndpoint(0);
}
UsbDeviceConnection connection = mUsbManager.openDevice(mUsbDevice);
if (connection != null && connection.claimInterface(mIntf, true)) {
Log.d(LOG_TAG, "open SUCCESS");
mConnection = connection;
} else {
Log.d(LOG_TAG, "open FAIL");
throw new IOException("could not open usb connection");
}
}
/** The man thread for the demo */
@Override
public void run() {
/* Get the OUT endpoint. It is the second endpoint in the interface */
UsbEndpoint endpointOUT = intf.getEndpoint(1);
/* Get the IN endpoint. It is the first endpoint in the interface */
UsbEndpoint endpointIN = intf.getEndpoint(0);
/* Create the packets that we are going to send to the attached USB
* device.
*/
byte[] getPushButtonStatusPacket = new byte[] {(byte) 0x81};
byte[] toggleLEDsPacket = new byte[] {(byte) 0x80};
byte[] getPotentiometerRequest = new byte[] {(byte) 0x37};
byte[] getPotentiometerResults = new byte[64];
byte[] getPushButtonStatusResults = new byte[64];
int potentiometerLastResults = Integer.MAX_VALUE;
int result = 0;
boolean needToToggleLEDs = false;
while (true) {
/* If the connection was closed, destroy the connections and variables
* and exit this thread.
*/
if (wasCloseRequested() == true) {
destroy();
return;
}
/* Sleep the thread for a while */
try {
Thread.sleep(50);
} catch (InterruptedException e) {
e.printStackTrace();
}
/* Send the request to get the push button status */
do {
result =
connection.bulkTransfer(
endpointOUT, getPushButtonStatusPacket, getPushButtonStatusPacket.length, 1000);
} while ((result < 0) && (wasCloseRequested() == false));
/* Read the push button status */
do {
result =
connection.bulkTransfer(
endpointIN, getPushButtonStatusResults, getPushButtonStatusResults.length, 1000);
} while ((result < 0) && (wasCloseRequested() == false));
/* If there was data successfully read,... */
if (result > 0) {
/* convert the byte data to a boolean representing the current button state */
boolean currentButtonState =
(getPushButtonStatusResults[1] == CUSTOM_HID_DEMO_BUTTON_PRESSED) ? true : false;
/* We only need to send a message to the GUI if the current button state is different than
* the old button state.
*/
if ((currentButtonState != lastButtonState) || (buttonStatusInitialized == false)) {
lastButtonState = currentButtonState;
handler.obtainMessage(0, new MessageButton(lastButtonState)).sendToTarget();
}
}
/* Check to see if we need to toggle the LEDs. We are synchronizing on
* The toggleLEDCount object here to insure that the user isn't changing
* the value as we are checking it.
*/
synchronized (toggleLEDCount) {
if (toggleLEDCount > 0) {
needToToggleLEDs = true;
toggleLEDCount--;
}
}
/* If we need to toggle the LEDs, send out the toggle LED command */
if (needToToggleLEDs == true) {
do {
result =
connection.bulkTransfer(endpointOUT, toggleLEDsPacket, toggleLEDsPacket.length, 1000);
} while ((result < 0) && (wasCloseRequested() == false));
needToToggleLEDs = false;
}
/* Send the request to read the Potentiometer */
do {
result =
connection.bulkTransfer(
endpointOUT, getPotentiometerRequest, getPotentiometerRequest.length, 1000);
} while ((result < 0) && (wasCloseRequested() == false));
/* Read the results of that request */
do {
result =
connection.bulkTransfer(
endpointIN, getPotentiometerResults, getPotentiometerResults.length, 1000);
} while ((result < 0) && (wasCloseRequested() == false));
/* Convert the resulting data to an int */
byte[] potentiometerBuffer = new byte[] {0, 0, 0, 0};
potentiometerBuffer[0] = getPotentiometerResults[1];
potentiometerBuffer[1] = getPotentiometerResults[2];
ByteBuffer buf = ByteBuffer.wrap(potentiometerBuffer);
buf.order(ByteOrder.LITTLE_ENDIAN);
int potentiometerResults = buf.getInt();
/* If the new results are different from the previous results, then send
* a message to the specified handler containing the new data.
*/
// handler.obtainMessage(0,new MessagePotentiometer((potentiometerResults *
// 100)/0x3FF)).sendToTarget();
// potentiometerLastResults = potentiometerResults;
}
}
@Override
public void open(UsbDeviceConnection connection) throws IOException {
if (mConnection != null) {
throw new IOException("Already open");
}
UsbInterface usbInterface = mDevice.getInterface(0);
if (!connection.claimInterface(usbInterface, true)) {
throw new IOException("Error claiming Prolific interface 0");
}
mConnection = connection;
boolean opened = false;
try {
for (int i = 0; i < usbInterface.getEndpointCount(); ++i) {
UsbEndpoint currentEndpoint = usbInterface.getEndpoint(i);
switch (currentEndpoint.getAddress()) {
case READ_ENDPOINT:
mReadEndpoint = currentEndpoint;
break;
case WRITE_ENDPOINT:
mWriteEndpoint = currentEndpoint;
break;
case INTERRUPT_ENDPOINT:
mInterruptEndpoint = currentEndpoint;
break;
}
}
if (mDevice.getDeviceClass() == 0x02) {
mDeviceType = DEVICE_TYPE_0;
} else {
try {
Method getRawDescriptorsMethod = mConnection.getClass().getMethod("getRawDescriptors");
byte[] rawDescriptors = (byte[]) getRawDescriptorsMethod.invoke(mConnection);
byte maxPacketSize0 = rawDescriptors[7];
if (maxPacketSize0 == 64) {
mDeviceType = DEVICE_TYPE_HX;
} else if ((mDevice.getDeviceClass() == 0x00) || (mDevice.getDeviceClass() == 0xff)) {
mDeviceType = DEVICE_TYPE_1;
} else {
Log.w(TAG, "Could not detect PL2303 subtype, " + "Assuming that it is a HX device");
mDeviceType = DEVICE_TYPE_HX;
}
} catch (NoSuchMethodException e) {
Log.w(
TAG,
"Method UsbDeviceConnection.getRawDescriptors, "
+ "required for PL2303 subtype detection, not "
+ "available! Assuming that it is a HX device");
mDeviceType = DEVICE_TYPE_HX;
} catch (Exception e) {
Log.e(
TAG,
"An unexpected exception occured while trying " + "to detect PL2303 subtype",
e);
}
}
setControlLines(mControlLinesValue);
resetDevice();
doBlackMagic();
opened = true;
} finally {
if (!opened) {
mConnection = null;
connection.releaseInterface(usbInterface);
}
}
}
public void run() {
Log("USB Thread started");
UsbEndpoint readEp = null;
UsbDeviceConnection usbConnection = null;
UsbInterface Intf = null;
UsbInterface Intf0 = null;
UsbEndpoint readEp0 = null;
UsbEndpoint writeEp0 = null;
byte[] readbuffer = new byte[64];
Log("Entering Read loop");
interfaceclaimed = false;
while (!_shouldstop) {
if (_usbDevice == null) {
Log("No device. Open device and Recheck in 1 sec...");
interfaceclaimed = false;
FindDevice();
Sleep(10000);
continue;
}
if (!interfaceclaimed) {
Log("Read loop Aquiring Interface 0 and Endpoint 1");
Intf = _usbDevice.getInterface(1);
readEp = Intf.getEndpoint(0);
Log("Read loop Aquiring Interface 0 and Endpoint 0");
Intf0 = _usbDevice.getInterface(0);
readEp0 = Intf0.getEndpoint(0);
writeEp0 = Intf0.getEndpoint(1);
if (!_usbManager.getDeviceList().containsKey(_deviceName)) {
Log("Failed to connect to the device. Retrying to acquire it.");
FindDevice();
if (!_usbManager.getDeviceList().containsKey(_deviceName)) {
Log("No device. Recheking in 10 sec...");
_connectionHandler.onDeviceNotFound();
Sleep(10000);
continue;
}
}
try {
usbConnection = _usbManager.openDevice(_usbDevice);
if (usbConnection == null) {
Log(
"Cannot start reader because the user didn't gave me permissions or the device is not present. Retrying in 2 sec...");
_connectionHandler.onUSBPermissionError();
Sleep(2000);
continue;
}
Log("USB loop claiming interface");
// Claim and lock the interface in the android system.
if (usbConnection.claimInterface(Intf, true)
&& usbConnection.claimInterface(Intf0, true)) {
Log("USB loop Interface claimed successful");
interfaceclaimed = true;
_connectionHandler.onUSBDeviceClaimed();
}
} catch (SecurityException e) {
Log(
"Cannot start reader because the user didn't gave me permissions. Retrying in 2 sec...");
interfaceclaimed = false;
Sleep(2000);
continue;
}
}
/*
int filed = readConnection.getFileDescriptor();
int epaddress = readEp.getAddress();
TeensyDeviceUsbNativeHelper nativehelper = new TeensyDeviceUsbNativeHelper(filed,64,epaddress);
nativehelper.beginUrbReadLoop();
byte[] buffer2 = new byte[64];
nativehelper.readUrb(1000, buffer2);
//_receivedQueue.add(buffer2);
Log(String.format("Message received of lengths %s and content: %s", 64, composeString(buffer2)));
*/
synchronized (_writelocker) {
// Queue a USBRequest to USB if any data is in queue
if (_writeQueue.size() > 0) {
byte[] writebuffer = _writeQueue.poll();
Log(String.format("Writing to USB: %s", CAN_Frame.bytesToHexString(writebuffer)));
// Log("USB loop sending bulk write request");
if (usbConnection.bulkTransfer(writeEp0, writebuffer, 64, 100) < 0) {
// failed to transfer
Log("USB loop sending bulk write request FAILED");
} // else Log("USB loop sending bulk write request SUCCEEDED");
}
}
synchronized (_locker) {
// Log("Read loop Waiting for requst to complete");
if (usbConnection.bulkTransfer(readEp0, readbuffer, 64, 100) >= 0) {
byte[] readbuffertrimmed = new byte[readbuffer[0]];
System.arraycopy(readbuffer, 0, readbuffertrimmed, 0, readbuffer[0]);
_receivedQueue.add(readbuffertrimmed);
Log(String.format("Message received: %s", CAN_Frame.bytesToHexString(readbuffer)));
_connectionHandler.onUSBRecieve();
}
}
// Sleep for 10 ms to pause, so other thread can write data or anything.
// As both read and write data methods lock each other - they cannot be run in parallel.
// Looks like Android is not so smart in planning the threads, so we need to give it a
// small time
// to switch the thread context.
// Sleep(10);
}
if (usbConnection != null) {
usbConnection.releaseInterface(Intf);
usbConnection.releaseInterface(Intf0);
interfaceclaimed = false;
usbConnection.close();
_connectionHandler.onUsbStopped();
Log("USB Thread ENDED!");
}
}