public static unsafe UsbInterfaceInfo FromUsbInterfaceDescriptor(LibUsb.UsbDevice device, InterfaceDescriptor descriptor)
{
Debug.Assert(descriptor.DescriptorType == (int)DescriptorType.Interface, "A config descriptor was expected");
UsbInterfaceInfo value = new UsbInterfaceInfo();
value.AlternateSetting = descriptor.AlternateSetting;
var endpoints = (EndpointDescriptor *)descriptor.Endpoint;
for (int i = 0; i < descriptor.NumEndpoints; i++)
{
if (endpoints[i].DescriptorType != 0)
{
value.endpoints.Add(UsbEndpointInfo.FromUsbEndpointDescriptor(endpoints[i]));
}
}
value.RawDescriptors = new byte[descriptor.ExtraLength];
if (descriptor.ExtraLength > 0)
{
Span <byte> extra = new Span <byte>(descriptor.Extra, descriptor.ExtraLength);
extra.CopyTo(value.RawDescriptors);
}
value.Interface = device.GetStringDescriptor(descriptor.Interface, failSilently: true);
value.Class = (ClassCode)descriptor.InterfaceClass;
value.Number = descriptor.InterfaceNumber;
value.Protocol = descriptor.InterfaceProtocol;
value.SubClass = descriptor.InterfaceSubClass;
return(value);
}
internal static unsafe UsbConfigInfo FromUsbConfigDescriptor(global::LibUsbDotNet.LibUsb.UsbDevice device, ConfigDescriptor descriptor)
{
Debug.Assert(descriptor.DescriptorType == (int)DescriptorType.Config, "A config descriptor was expected");
UsbConfigInfo value = new UsbConfigInfo();
value.Attributes = descriptor.Attributes;
value.Configuration = device.GetStringDescriptor(descriptor.Configuration, failSilently: true);
value.ConfigurationValue = descriptor.ConfigurationValue;
value.RawDescriptors = new byte[descriptor.ExtraLength];
if (descriptor.ExtraLength > 0)
{
Span <byte> extra = new Span <byte>(descriptor.Extra, descriptor.ExtraLength);
extra.CopyTo(value.RawDescriptors);
}
var interfaces = (Interface *)descriptor.Interface;
for (int i = 0; i < descriptor.NumInterfaces; i++)
{
var values = UsbInterfaceInfo.FromUsbInterface(device, interfaces[i]);
value.interfaces.AddRange(values);
}
value.MaxPower = descriptor.MaxPower;
return(value);
}
internal UsbConfigInfo(MonoUsbDevice usbDevice, MonoUsbConfigDescriptor configDescriptor)
{
mUsbDevice = usbDevice;
mUsbConfigDescriptor = new UsbConfigDescriptor(configDescriptor);
List <MonoUsbInterface> monoUSBInterfaces = configDescriptor.InterfaceList;
foreach (MonoUsbInterface usbInterface in monoUSBInterfaces)
{
List <MonoUsbAltInterfaceDescriptor> monoUSBAltInterfaces = usbInterface.AltInterfaceList;
foreach (MonoUsbAltInterfaceDescriptor monoUSBAltInterface in monoUSBAltInterfaces)
{
UsbInterfaceInfo usbInterfaceInfo = new UsbInterfaceInfo(mUsbDevice, monoUSBAltInterface);
mInterfaceList.Add(usbInterfaceInfo);
}
}
}
internal UsbConfigInfo(UsbDevice usbDevice, UsbConfigDescriptor descriptor, ref List <byte[]> rawDescriptors)
{
mUsbDevice = usbDevice;
mUsbConfigDescriptor = descriptor;
mRawDescriptors = rawDescriptors;
UsbInterfaceInfo currentInterface = null;
for (int iRawDescriptor = 0; iRawDescriptor < rawDescriptors.Count; iRawDescriptor++)
{
byte[] bytesRawDescriptor = rawDescriptors[iRawDescriptor];
switch (bytesRawDescriptor[1])
{
case (byte)DescriptorType.Interface:
currentInterface = new UsbInterfaceInfo(usbDevice, bytesRawDescriptor);
mRawDescriptors.RemoveAt(iRawDescriptor);
mInterfaceList.Add(currentInterface);
iRawDescriptor--;
break;
case (byte)DescriptorType.Endpoint:
if (currentInterface == null)
{
throw new UsbException(this, "Recieved and endpoint descriptor before receiving an interface descriptor.");
}
currentInterface.mEndpointInfo.Add(new UsbEndpointInfo(bytesRawDescriptor));
mRawDescriptors.RemoveAt(iRawDescriptor);
iRawDescriptor--;
break;
default:
if (currentInterface != null)
{
currentInterface.mRawDescriptors.Add(bytesRawDescriptor);
mRawDescriptors.RemoveAt(iRawDescriptor);
iRawDescriptor--;
}
break;
}
}
}
internal UsbConfigInfo(UsbDevice usbDevice, UsbConfigDescriptor descriptor, ref List<byte[]> rawDescriptors)
{
mUsbDevice = usbDevice;
mUsbConfigDescriptor = descriptor;
mRawDescriptors = rawDescriptors;
UsbInterfaceInfo currentInterface = null;
for (int iRawDescriptor = 0; iRawDescriptor < rawDescriptors.Count; iRawDescriptor++)
{
byte[] bytesRawDescriptor = rawDescriptors[iRawDescriptor];
switch (bytesRawDescriptor[1])
{
case (byte) DescriptorType.Interface:
currentInterface = new UsbInterfaceInfo(usbDevice, bytesRawDescriptor);
mRawDescriptors.RemoveAt(iRawDescriptor);
mInterfaceList.Add(currentInterface);
iRawDescriptor--;
break;
case (byte) DescriptorType.Endpoint:
if (currentInterface == null)
throw new UsbException(this, "Recieved and endpoint descriptor before receiving an interface descriptor.");
currentInterface.mEndpointInfo.Add(new UsbEndpointInfo(bytesRawDescriptor));
mRawDescriptors.RemoveAt(iRawDescriptor);
iRawDescriptor--;
break;
default:
if (currentInterface != null)
{
currentInterface.mRawDescriptors.Add(bytesRawDescriptor);
mRawDescriptors.RemoveAt(iRawDescriptor);
iRawDescriptor--;
}
break;
}
}
}
private static UsbInterfaceInfo usb_find_interface(UsbConfigInfo config_descriptor, int interface_number, out UsbInterfaceInfo first_interface)
{
first_interface = null;
if (ReferenceEquals(config_descriptor, null)) return null;
ReadOnlyCollection<UsbInterfaceInfo> interfaces = config_descriptor.InterfaceInfoList;
for (int intfIndex = 0; intfIndex < interfaces.Count; intfIndex++)
{
if (ReferenceEquals(first_interface, null))
first_interface = interfaces[intfIndex];
if (interfaces[intfIndex].Descriptor.InterfaceID == interface_number)
{
return interfaces[intfIndex];
}
}
return null;
}
/// <summary>
/// Looks up endpoint/interface information in a configuration.
/// </summary>
/// <param name="currentConfigInfo">The config to seach.</param>
/// <param name="endpointAddress">The endpoint address to look for.</param>
/// <param name="usbInterfaceInfo">On success, the <see cref="UsbInterfaceInfo"/> class for this endpoint.</param>
/// <param name="usbEndpointInfo">On success, the <see cref="UsbEndpointInfo"/> class for this endpoint.</param>
/// <returns>True of the endpoint was found, otherwise false.</returns>
public static bool LookupEndpointInfo(UsbConfigInfo currentConfigInfo, byte endpointAddress, out UsbInterfaceInfo usbInterfaceInfo, out UsbEndpointInfo usbEndpointInfo)
{
bool found = false;
usbInterfaceInfo = null;
usbEndpointInfo = null;
foreach (UsbInterfaceInfo interfaceInfo in currentConfigInfo.InterfaceInfoList)
{
foreach (UsbEndpointInfo endpointInfo in interfaceInfo.EndpointInfoList)
{
if ((endpointAddress & UsbConstants.ENDPOINT_NUMBER_MASK) == 0)
{
// find first read/write endpoint
if ((endpointAddress & UsbConstants.ENDPOINT_DIR_MASK) == 0 &&
(endpointInfo.Descriptor.EndpointID & UsbConstants.ENDPOINT_DIR_MASK) == 0)
{
// first write endpoint
found = true;
}
if ((endpointAddress & UsbConstants.ENDPOINT_DIR_MASK) != 0 &&
(endpointInfo.Descriptor.EndpointID & UsbConstants.ENDPOINT_DIR_MASK) != 0)
{
// first read endpoint
found = true;
}
}
else if (endpointInfo.Descriptor.EndpointID == endpointAddress)
{
found = true;
}
if (found)
{
usbInterfaceInfo = interfaceInfo;
usbEndpointInfo = endpointInfo;
return true;
}
}
}
return false;
}
internal UsbConfigInfo(MonoUsbDevice usbDevice, MonoUsbConfigDescriptor configDescriptor)
{
mUsbDevice = usbDevice;
mUsbConfigDescriptor = new UsbConfigDescriptor(configDescriptor);
List<MonoUsbInterface> monoUSBInterfaces = configDescriptor.InterfaceList;
foreach (MonoUsbInterface usbInterface in monoUSBInterfaces)
{
List<MonoUsbAltInterfaceDescriptor> monoUSBAltInterfaces = usbInterface.AltInterfaceList;
foreach (MonoUsbAltInterfaceDescriptor monoUSBAltInterface in monoUSBAltInterfaces)
{
UsbInterfaceInfo usbInterfaceInfo = new UsbInterfaceInfo(mUsbDevice, monoUSBAltInterface);
mInterfaceList.Add(usbInterfaceInfo);
}
}
}
/// <summary>
/// Looks up endpoint/interface information in a configuration.
/// </summary>
/// <param name="currentConfigInfo">The config to seach.</param>
/// <param name="endpointAddress">The endpoint address to look for.</param>
/// <param name="usbInterfaceInfo">On success, the <see cref="UsbInterfaceInfo"/> class for this endpoint.</param>
/// <param name="usbEndpointInfo">On success, the <see cref="UsbEndpointInfo"/> class for this endpoint.</param>
/// <returns>True of the endpoint was found, otherwise false.</returns>
public static bool LookupEndpointInfo(UsbConfigInfo currentConfigInfo, byte endpointAddress, out UsbInterfaceInfo usbInterfaceInfo, out UsbEndpointInfo usbEndpointInfo)
{
return LookupEndpointInfo(currentConfigInfo, -1, endpointAddress, out usbInterfaceInfo, out usbEndpointInfo);
}
private bool openAsTestDevice(UsbRegistry usbRegistry)
{
if (!ReferenceEquals(mUsbDevice, null))
closeTestDevice(mUsbDevice);
mUsbDevice = null;
try
{
if (usbRegistry.Open(out mUsbDevice))
{
UsbInterfaceInfo readInterfaceInfo;
UsbInterfaceInfo writeInterfaceInfo;
UsbDevice.UsbErrorEvent += OnUsbError;
if (!UsbEndpointBase.LookupEndpointInfo(mUsbDevice.Configs[0],
0x80,
out readInterfaceInfo,
out mReadEndpointInfo))
{
throw new Exception("failed locating read endpoint.");
}
mBenchMarkParameters.BufferSize -= (mBenchMarkParameters.BufferSize%(mReadEndpointInfo.Descriptor.MaxPacketSize));
if (!UsbEndpointBase.LookupEndpointInfo(mUsbDevice.Configs[0],
0x00,
out writeInterfaceInfo,
out mWriteEndpointInfo))
{
throw new Exception("failed locating write endpoint.");
}
if (((mWriteEndpointInfo.Descriptor.Attributes & 3)==(int) EndpointType.Isochronous) ||
((mReadEndpointInfo.Descriptor.Attributes & 3)==(int) EndpointType.Isochronous))
{
throw new Exception("buenchmark GUI application does not support ISO endpoints. Use BenchmarkCon instead.");
}
mBenchMarkParameters.BufferSize -= (mBenchMarkParameters.BufferSize%(mWriteEndpointInfo.Descriptor.MaxPacketSize));
if (writeInterfaceInfo.Descriptor.InterfaceID != readInterfaceInfo.Descriptor.InterfaceID)
throw new Exception("read/write endpoints must be on the same interface.");
mEP1Reader = mUsbDevice.OpenEndpointReader(
(ReadEndpointID)mReadEndpointInfo.Descriptor.EndpointID,
mBenchMarkParameters.BufferSize,
(EndpointType)(mReadEndpointInfo.Descriptor.Attributes & 3));
mEP1Writer = mUsbDevice.OpenEndpointWriter(
(WriteEndpointID) mWriteEndpointInfo.Descriptor.EndpointID,
(EndpointType) (mWriteEndpointInfo.Descriptor.Attributes & 3));
mInterfaceInfo = writeInterfaceInfo;
mEP1Reader.ReadThreadPriority = mBenchMarkParameters.Priority;
mEP1Reader.DataReceived += OnDataReceived;
makeTestBytes(out loopTestBytes, mBenchMarkParameters.BufferSize);
// If this is a "whole" usb device (libusb-win32, linux libusb)
// it will have an IUsbDevice interface. If not (WinUSB) the
// variable will be null indicating this is an interface of a
// device.
IUsbDevice wholeUsbDevice = mUsbDevice as IUsbDevice;
if (!ReferenceEquals(wholeUsbDevice, null))
{
// This is a "whole" USB device. Before it can be used,
// the desired configuration and interface must be selected.
// Select config #1
wholeUsbDevice.SetConfiguration(1);
// Claim interface #0.
wholeUsbDevice.ClaimInterface(mInterfaceInfo.Descriptor.InterfaceID);
}
return true;
}
}
catch(Exception ex)
{
SetStatus(ex.Message, true);
}
if (!ReferenceEquals(mUsbDevice,null))
{
try
{
closeTestDevice(mUsbDevice);
}
finally
{
mUsbDevice = null;
mEP1Reader = null;
mEP1Writer = null;
}
}
return false;
}
