public SmartScopeUsbInterfaceXamarin(Context context, UsbManager usbManager, UsbDevice device)
{
Destroyed = false;
if(!usbManager.HasPermission(device))
{
Logger.Error("Permission denied");
throw new Exception("Device permission not obtained");
}
UsbInterface interf = device.GetInterface(0);
for (int i = 0; i < interf.EndpointCount; i++)
{
if (interf.GetEndpoint(i).EndpointNumber == 1)
dataEndpoint = interf.GetEndpoint(i);
else if (interf.GetEndpoint(i).EndpointNumber == 2)
commandWriteEndpoint = interf.GetEndpoint(i);
else if (interf.GetEndpoint(i).EndpointNumber == 3)
commandReadEndpoint = interf.GetEndpoint(i);
}
usbConnection = usbManager.OpenDevice(device);
usbConnection.ClaimInterface(interf, true);
}
public override void Open()
{
if (IsOpened) {
return;
}
bool openedSuccessfully = false;
try
{
CreateConnection();
Log.Debug(Tag, "claiming interfaces, count=" + UsbDevice.InterfaceCount);
mControlInterface = UsbDevice.GetInterface(0);
Log.Debug(Tag, "Control iface=" + mControlInterface);
// class should be USB_CLASS_COMM
if (!Connection.ClaimInterface(mControlInterface, true))
{
throw new IOException("Could not claim control interface.");
}
mControlEndpoint = mControlInterface.GetEndpoint(0);
Log.Debug(Tag, "Control endpoint direction: " + mControlEndpoint.Direction);
Log.Debug(Tag, "Claiming data interface.");
mDataInterface = UsbDevice.GetInterface(1);
Log.Debug(Tag, "data iface=" + mDataInterface);
// class should be USB_CLASS_CDC_DATA
if (!Connection.ClaimInterface(mDataInterface, true))
{
throw new IOException("Could not claim data interface.");
}
mReadEndpoint = mDataInterface.GetEndpoint(1);
Log.Debug(Tag, "Read endpoint direction: " + mReadEndpoint.Direction);
mWriteEndpoint = mDataInterface.GetEndpoint(0);
Log.Debug(Tag, "Write endpoint direction: " + mWriteEndpoint.Direction);
if (mEnableAsyncReads)
{
Log.Debug(Tag, "Async reads enabled");
}
else
{
Log.Debug(Tag, "Async reads disabled.");
}
ResetParameters();
openedSuccessfully = true;
}
finally {
if (openedSuccessfully) {
IsOpened = true;
StartUpdating ();
} else {
CloseConnection();
}
}
}
public override void Open()
{
bool openedSuccessfully = false;
try
{
CreateConnection();
UsbInterface usbInterface = UsbDevice.GetInterface(0);
if (!Connection.ClaimInterface(usbInterface, true))
{
throw new IOException("Error claiming Prolific interface 0");
}
for (int i = 0; i < usbInterface.EndpointCount; ++i)
{
UsbEndpoint currentEndpoint = usbInterface.GetEndpoint(i);
switch ((int)currentEndpoint.Address)
{
case READ_ENDPOINT:
mReadEndpoint = currentEndpoint;
break;
case WRITE_ENDPOINT:
mWriteEndpoint = currentEndpoint;
break;
case INTERRUPT_ENDPOINT:
mInterruptEndpoint = currentEndpoint;
break;
}
}
if (UsbDevice.DeviceClass == UsbClass.Comm)
{
mDeviceType = DEVICE_TYPE_0;
}
else
{
try
{
byte[] rawDescriptors = Connection.GetRawDescriptors();
byte maxPacketSize0 = rawDescriptors[7];
if (maxPacketSize0 == 64)
{
mDeviceType = DEVICE_TYPE_HX;
}
else if ((UsbDevice.DeviceClass == UsbClass.PerInterface) || (UsbDevice.DeviceClass == UsbClass.VendorSpec))
{
mDeviceType = DEVICE_TYPE_1;
}
else
{
Log.Warn(TAG, "Could not detect PL2303 subtype, "
+ "Assuming that it is a HX device");
mDeviceType = DEVICE_TYPE_HX;
}
}
catch (Exception e)
{
Log.Error(TAG, "An unexpected exception occured while trying "
+ "to detect PL2303 subtype", e);
}
}
SetControlLines(mControlLinesValue);
ResetDevice();
DoBlackMagic();
ResetParameters();
openedSuccessfully = true;
}
finally {
if (openedSuccessfully) {
IsOpened = true;
StartUpdating ();
} else {
CloseConnection();
}
}
}
public override void Open()
{
bool openedSuccessfully = false;
try
{
CreateConnection();
for (int i = 0; i < UsbDevice.InterfaceCount; i++)
{
UsbInterface usbIface = UsbDevice.GetInterface(i);
if (Connection.ClaimInterface(usbIface, true))
{
Log.Debug(TAG, "ClaimInterface " + i + " SUCCESS");
}
else
{
Log.Debug(TAG, "ClaimInterface " + i + " FAIL");
}
}
UsbInterface dataIface = UsbDevice.GetInterface(UsbDevice.InterfaceCount - 1);
for (int i = 0; i < dataIface.EndpointCount; i++)
{
UsbEndpoint ep = dataIface.GetEndpoint(i);
if (ep.Type == UsbAddressing.XferBulk)
{ // UsbConstants.USB_ENDPOINT_XFER_BULK
if (ep.Direction == UsbAddressing.In)
{ // UsbConstants.USB_DIR_IN
mReadEndpoint = ep;
}
else
{
mWriteEndpoint = ep;
}
}
}
SetConfigSingle(SilabsER_IFC_ENABLE_REQUEST_CODE, UART_ENABLE);
SetConfigSingle(SilabsER_SET_MHS_REQUEST_CODE, MCR_ALL | CONTROL_WRITE_DTR | CONTROL_WRITE_RTS);
SetConfigSingle(SilabsER_SET_BAUDDIV_REQUEST_CODE, BAUD_RATE_GEN_FREQ / DEFAULT_BAUD_RATE);
ResetParameters();
openedSuccessfully = true;
}
finally {
if (openedSuccessfully) {
IsOpened = true;
StartUpdating ();
} else {
CloseConnection();
}
}
}
public async Task<bool> OpenAsync()
{
if (connected)
return false;
usbManager.RequestPermission(usbDevice, PendingIntent.GetBroadcast(ConnectionService.Instance.Context, 0, new Intent(ConnectionService.Instance.ActionUsbPermission), PendingIntentFlags.CancelCurrent));
UsbInterface intf = usbDevice.GetInterface(0);
pinReportEndpoint = intf.GetEndpoint(0);
peripheralResponseEndpoint = intf.GetEndpoint(1);
pinConfigEndpoint = intf.GetEndpoint(2);
peripheralConfigEndpoint = intf.GetEndpoint(3);
connection = usbManager.OpenDevice(usbDevice);
if (connection != null)
{
bool intfClaimed = connection.ClaimInterface(intf, true);
if (intfClaimed)
{
connected = true;
return true;
}
}
return false;
}
