public async Task InitializeAsync()
{
try
{
if (disposed)
{
throw new Exception(Messages.DeviceDisposedErrorMessage);
}
await _InitializingSemaphoreSlim.WaitAsync();
Close();
_UsbDevice = UsbManager.DeviceList.Select(d => d.Value).FirstOrDefault(d => d.DeviceId == DeviceNumberId);
if (_UsbDevice == null)
{
throw new Exception($"The device {DeviceNumberId} is not connected to the system");
}
Logger?.Log($"Found device: {_UsbDevice.DeviceName} Id: {_UsbDevice.DeviceId}", nameof(AndroidUsbInterfaceManager), null, LogLevel.Information);
var isPermissionGranted = await RequestPermissionAsync();
if (!isPermissionGranted.HasValue)
{
throw new Exception("User did not respond to permission request");
}
if (!isPermissionGranted.Value)
{
throw new Exception("The user did not give the permission to access the device");
}
_UsbDeviceConnection = UsbManager.OpenDevice(_UsbDevice);
if (_UsbDeviceConnection == null)
{
throw new Exception("could not open connection");
}
for (var x = 0; x < _UsbDevice.InterfaceCount; x++)
{
//TODO: This is the default interface but other interfaces might be needed so this needs to be changed.
var usbInterface = _UsbDevice.GetInterface(x);
var androidUsbInterface = new AndroidUsbInterface(usbInterface, _UsbDeviceConnection, Logger, Tracer, _ReadBufferSize, _WriteBufferSize);
UsbInterfaces.Add(androidUsbInterface);
for (var y = 0; y < usbInterface.EndpointCount; y++)
{
var usbEndpoint = usbInterface.GetEndpoint(y);
if (usbEndpoint != null)
{
//TODO: This is probably all wrong...
var androidUsbEndpoint = new AndroidUsbEndpoint(usbEndpoint);
androidUsbInterface.UsbInterfaceEndpoints.Add(androidUsbEndpoint);
}
}
}
Log("Hid device initialized. About to tell everyone.", null);
RegisterDefaultInterfaces();
}
catch (Exception ex)
{
Log("Error initializing Hid Device", ex);
throw;
}
finally
{
_InitializingSemaphoreSlim.Release();
}
}
public async Task InitializeAsync(CancellationToken cancellationToken = default)
{
if (disposed)
{
throw new DeviceException(Messages.DeviceDisposedErrorMessage);
}
using var logScope = Logger.BeginScope("DeviceId: {deviceId} Call: {call}", DeviceNumberId, nameof(InitializeAsync));
if (IsInitialized)
{
Logger.LogWarning("Device is already initialized...");
}
Logger.LogInformation("Attempting to initialize...");
try
{
await Task.Run(async() =>
{
Logger.LogTrace("Waiting for initialization lock ... {deviceId}", DeviceNumberId);
await _InitializingSemaphoreSlim.WaitAsync(cancellationToken).ConfigureAwait(false);
Close();
_UsbDevice = UsbManager.DeviceList.Select(d => d.Value).FirstOrDefault(d => d.DeviceId == DeviceNumberId);
if (_UsbDevice == null)
{
throw new DeviceException($"The device {DeviceNumberId} is not connected to the system");
}
Logger.LogInformation("Found device: {deviceName} Id: {deviceId}", _UsbDevice.DeviceName, _UsbDevice.DeviceId);
var isPermissionGranted = await RequestPermissionAsync().ConfigureAwait(false);
if (!isPermissionGranted.HasValue)
{
throw new DeviceException("User did not respond to permission request");
}
if (!isPermissionGranted.Value)
{
throw new DeviceException("The user did not give the permission to access the device");
}
_UsbDeviceConnection = UsbManager.OpenDevice(_UsbDevice);
if (_UsbDeviceConnection == null)
{
throw new DeviceException("could not open connection");
}
Logger.LogInformation("Interface count: {count}", _UsbDevice.InterfaceCount);
for (var interfaceNumber = 0; interfaceNumber < _UsbDevice.InterfaceCount; interfaceNumber++)
{
//TODO: This is the default interface but other interfaces might be needed so this needs to be changed.
var usbInterface = _UsbDevice.GetInterface(interfaceNumber);
var androidUsbInterface = new AndroidUsbInterface(
usbInterface,
_UsbDeviceConnection,
_androidFactory,
LoggerFactory.CreateLogger <AndroidUsbInterface>(),
ReadBufferSizeProtected,
WriteBufferSizeProtected);
Logger.LogInformation("Interface found. Id: {id} Endpoint Count: {endpointCount} Interface Class: {interfaceclass} Interface Subclass: {interfacesubclass} Name: {name}", usbInterface.Id, usbInterface.EndpointCount, usbInterface.InterfaceClass, usbInterface.InterfaceSubclass, usbInterface.Name);
UsbInterfaces.Add(androidUsbInterface);
for (var endpointNumber = 0; endpointNumber < usbInterface.EndpointCount; endpointNumber++)
{
var usbEndpoint = usbInterface.GetEndpoint(endpointNumber);
if (usbEndpoint == null)
{
continue;
}
var androidUsbEndpoint = new AndroidUsbEndpoint(usbEndpoint, interfaceNumber, LoggerFactory.CreateLogger <AndroidUsbEndpoint>());
androidUsbInterface.UsbInterfaceEndpoints.Add(androidUsbEndpoint);
}
await androidUsbInterface.ClaimInterface().ConfigureAwait(false);
}
RegisterDefaultInterfaces();
Logger.LogInformation("Device initialized successfully.");
}, cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.LogError(ex, "Error initializing device");
throw;
}
finally
{
Logger.LogTrace("Releasing initialization lock");
_ = _InitializingSemaphoreSlim.Release();
}
}
