} //ConfigurationDescriptor
public void ParseDescriptor(Configuration.Descriptor descriptor)
{
Type descriptorType = descriptor.GetType();
if (descriptorType == typeof(Configuration.DeviceDescriptor))
{
DeviceDescriptor((Configuration.DeviceDescriptor)descriptor);
return;
}
if (descriptorType == typeof(Configuration.ConfigurationDescriptor))
{
ConfigurationDescriptor((Configuration.ConfigurationDescriptor)descriptor);
return;
}
Log.Comment("descriptor not parsed " + descriptor.ToString());
} //ParseDescriptor
/// <summary>
/// Configures the USB port.
/// </summary>
/// <param name="port"></param>
/// <param name="fAddMouse"></param>
private static void ConfigureUsbPort(UsbController port, bool fAddMouse)
{
try
{
bool fMouseConfigExists = false;
Configuration configuration = port.Configuration;
Configuration.DeviceDescriptor device;
Configuration.ConfigurationDescriptor cfgDesc = null;
int cfgDescIndex = 0;
int mouseInterfaceIndex = 0;
if (configuration == null)
{
configuration = new Configuration();
// Create the device descriptor.
device = new Configuration.DeviceDescriptor(0xBADA, 0x0026,
0x0100);
device.bcdUSB = 0x110;
device.bDeviceClass = 0;
device.bDeviceSubClass = 0;
device.bDeviceProtocol = 0;
device.bMaxPacketSize0 = 8;
device.iManufacturer = 1; // String #1 is the manufacturer name.
device.iProduct = 2; // String #2 is the product name.
device.iSerialNumber = 0;
}
else
{
for (int i = 0; i < configuration.descriptors.Length; i++)
{
if (configuration.descriptors[i] is Configuration.ConfigurationDescriptor)
{
Configuration.ConfigurationDescriptor cfg =
(Configuration.ConfigurationDescriptor)configuration.descriptors[i];
// We make the assumption here that the second
// interface is always a mouse.
for (int j = 0; j < cfg.interfaces.Length; j++)
{
if (cfg.interfaces[j].bInterfaceClass == 3 &&
cfg.interfaces[j].bInterfaceProtocol == 2)
{
fMouseConfigExists = true;
mouseInterfaceIndex = j;
}
}
cfgDesc =
(Configuration.ConfigurationDescriptor)configuration.descriptors[i];
break;
}
cfgDescIndex++;
}
device = configuration.descriptors[0] as
Configuration.DeviceDescriptor;
}
if (fAddMouse && !fMouseConfigExists)
{
Configuration.Endpoint endpoint = new Configuration.Endpoint(
3, Configuration.Endpoint.ATTRIB_Interrupt |
Configuration.Endpoint.ATTRIB_Write);
endpoint.wMaxPacketSize = 8; // Mouse data requires only eight bytes.
endpoint.bInterval = 10; // Host should request data from mouse every 10 mS.
Configuration.Endpoint[] mouseEndpoints =
new Configuration.Endpoint[1] {
endpoint
};
// Set up the mouse interface.
Configuration.UsbInterface usbInterface =
new Configuration.UsbInterface(1, mouseEndpoints);
usbInterface.bInterfaceClass = 3; // HID interface.
usbInterface.bInterfaceSubClass = 1; // Boot device.
usbInterface.bInterfaceProtocol = 2; // Standard mouse protocol.
usbInterface.iInterface = 1; // Interface index.
// Assemble the HID class descriptor.
byte[] HidPayload = new byte[]
{
0x01, 0x01, // bcdHID = HID version 1.01.
0x00, // bCountryCode (unimportant).
0x01, // bNumDescriptors = number of descriptors available for this device.
0x22, // bDescriptorType = Report descriptor.
0x32, 0x00 // Total size of Report descriptor (50).
};
usbInterface.classDescriptors =
new Configuration.ClassDescriptor[1] {
new Configuration.ClassDescriptor(0x21, HidPayload)
};
if (cfgDesc == null)
{
Configuration.UsbInterface[] UsbInterfaces =
new Configuration.UsbInterface[1] {
usbInterface
};
cfgDesc = new Configuration.ConfigurationDescriptor(
280, UsbInterfaces);
mouseInterfaceIndex = 0;
}
else
{
Configuration.UsbInterface[] UsbInterfaces =
new Configuration.UsbInterface[cfgDesc.interfaces.Length + 1];
Array.Copy(cfgDesc.interfaces, UsbInterfaces,
cfgDesc.interfaces.Length);
UsbInterfaces[UsbInterfaces.Length - 1] = usbInterface;
mouseInterfaceIndex = UsbInterfaces.Length - 1;
cfgDesc.interfaces = UsbInterfaces;
}
// Create the report descriptor as a Generic. This data was
// created using...
byte[] BootMouseReportPayload = null;
BootMouseReportPayload = new byte[]
{
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x03, // USAGE_MAXIMUM (Button 3)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x05, // REPORT_SIZE (5)
0x81, 0x01, // INPUT (Cnst,Ary,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x06, // INPUT (Data,Var,Rel)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
};
const byte DescriptorRequest = 0x81;
const byte ReportDescriptor = 0x22;
const byte GetDescriptor = 0x06;
const ushort Report_wValue = (ushort)ReportDescriptor << 8;
Configuration.GenericDescriptor mouseReportDescriptor =
new Configuration.GenericDescriptor(DescriptorRequest,
Report_wValue, BootMouseReportPayload);
mouseReportDescriptor.bRequest = GetDescriptor;
mouseReportDescriptor.wIndex =
(ushort)(mouseInterfaceIndex); // The interface number.
Configuration.StringDescriptor manufacturerName;
Configuration.StringDescriptor productName;
Configuration.StringDescriptor displayName;
Configuration.StringDescriptor friendlyName;
// Create the standard strings for the USB device
manufacturerName = new Configuration.StringDescriptor(
1, "Sample Manufacturer");
productName = new Configuration.StringDescriptor(
2, "Micro Framework Mouse Sample");
displayName = new Configuration.StringDescriptor(
4, "Micro Framework Mouse");
friendlyName = new Configuration.StringDescriptor(
5, "NetMF_Mouse");
if (configuration.descriptors == null)
{
configuration.descriptors =
new Configuration.Descriptor[]
{
device,
cfgDesc,
manufacturerName,
productName,
displayName,
friendlyName,
mouseReportDescriptor
};
}
else
{
int descLength = configuration.descriptors.Length;
Configuration.Descriptor[] descriptors =
new Configuration.Descriptor[descLength + 1];
Array.Copy(configuration.descriptors, descriptors,
descLength);
descriptors[cfgDescIndex] = cfgDesc;
descriptors[descLength] = mouseReportDescriptor;
configuration.descriptors = descriptors;
}
}
else if (!fAddMouse && fMouseConfigExists)
{
Configuration.UsbInterface[] UsbInterfaces =
new Configuration.UsbInterface[cfgDesc.interfaces.Length - 1];
Array.Copy(cfgDesc.interfaces, UsbInterfaces,
cfgDesc.interfaces.Length - 1);
// Make sure we are removing the correct interface.
if (mouseInterfaceIndex != (cfgDesc.interfaces.Length - 1))
{
cfgDesc.interfaces[mouseInterfaceIndex] =
cfgDesc.interfaces[cfgDesc.interfaces.Length - 1];
}
cfgDesc.interfaces = UsbInterfaces;
configuration.descriptors[cfgDescIndex] = cfgDesc;
}
port.Stop();
// Give the PC some time to unload the driver.
Thread.Sleep(500);
port.Configuration = configuration;
if (port.ConfigurationError !=
UsbController.ConfigError.ConfigOK)
{
Debug.Print("Compound configuration reported an error " +
port.ConfigurationError.ToString());
}
// Kick the USB controller into action.
if (!port.Start())
{
Debug.Print("Compound USB could not be started.");
}
}
catch (ArgumentException)
{
try
{
// Try to recover from a bad USB configuration.
port.Configuration = null;
port.Start();
}
catch
{
}
Debug.Print("Couldn't configure Compound USB due to error " +
port.ConfigurationError.ToString());
}
}
