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// Copyright © 2006-2010 Travis Robinson. All rights reserved.
//
// website: http://sourceforge.net/projects/libusbdotnet
// e-mail: libusbdotnet@gmail.com
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. or
// visit www.gnu.org.
//
//
using System;
using System.Globalization;
using System.Runtime.InteropServices;
using LibUsbDotNet.Descriptors;
using LibUsbDotNet.Main;
using MonoLibUsb.Descriptors;
namespace LibUsbDotNet.Info
{
/// <summary> Contains USB device descriptor information.
/// </summary>
public class UsbDeviceInfo
{
private const short NO_LANG = short.MaxValue;
private readonly UsbDeviceDescriptor mDeviceDescriptor;
private short mCurrentCultureLangID = NO_LANG;
private String mManufacturerString;
private String mProductString;
private String mSerialString;
internal UsbDevice mUsbDevice;
internal UsbDeviceInfo(UsbDevice usbDevice)
{
mUsbDevice = usbDevice;
GetDeviceDescriptor(mUsbDevice, out mDeviceDescriptor);
}
internal UsbDeviceInfo(UsbDevice usbDevice, MonoUsbDeviceDescriptor usbDeviceDescriptor)
{
mUsbDevice = usbDevice;
mDeviceDescriptor = new UsbDeviceDescriptor();
mDeviceDescriptor.BcdDevice = usbDeviceDescriptor.BcdDevice;
mDeviceDescriptor.BcdUsb = usbDeviceDescriptor.BcdUsb;
mDeviceDescriptor.Class = usbDeviceDescriptor.Class;
mDeviceDescriptor.ConfigurationCount = usbDeviceDescriptor.ConfigurationCount;
mDeviceDescriptor.DescriptorType = usbDeviceDescriptor.DescriptorType;
mDeviceDescriptor.Length = usbDeviceDescriptor.Length;
mDeviceDescriptor.ManufacturerStringIndex = usbDeviceDescriptor.ManufacturerStringIndex;
mDeviceDescriptor.MaxPacketSize0 = usbDeviceDescriptor.MaxPacketSize0;
mDeviceDescriptor.ProductID = usbDeviceDescriptor.ProductID;
mDeviceDescriptor.ProductStringIndex = usbDeviceDescriptor.ProductStringIndex;
mDeviceDescriptor.Protocol = usbDeviceDescriptor.Protocol;
mDeviceDescriptor.SerialStringIndex = usbDeviceDescriptor.SerialStringIndex;
mDeviceDescriptor.SubClass = usbDeviceDescriptor.SubClass;
mDeviceDescriptor.VendorID = usbDeviceDescriptor.VendorID;
}
/// <summary>
/// The raw <see cref="UsbDeviceDescriptor"/> for the current <see cref="UsbDevice"/>.
/// </summary>
public UsbDeviceDescriptor Descriptor
{
get { return mDeviceDescriptor; }
}
/// <summary>
/// Request all available languages from the USB device (string index 0) and return the most appropriate LCID given the current operating systems locale settings. See System.Globalization.CultureInfo.CurrentCulture.LCID.
/// </summary>
/// <remarks>
/// Once the USB devices CurrentCultureLangID has been retreived, subsequent request will return a cached copy of the LCID.
/// </remarks>
public short CurrentCultureLangID
{
get
{
if (mCurrentCultureLangID == NO_LANG)
{
short currentCultureLangID = (short) CultureInfo.CurrentCulture.LCID;
short[] deviceLangIDs;
if (mUsbDevice.GetLangIDs(out deviceLangIDs))
{
foreach (short deviceLangID in deviceLangIDs)
{
if (deviceLangID == currentCultureLangID)
{
mCurrentCultureLangID = deviceLangID;
return mCurrentCultureLangID;
}
}
}
mCurrentCultureLangID = deviceLangIDs.Length > 0 ? deviceLangIDs[0] : (short) 0;
}
return mCurrentCultureLangID;
}
}
/// <summary>
/// Gets the string representation of the <see cref="UsbDeviceDescriptor.ManufacturerStringIndex"/> string index.
/// </summary>
public String ManufacturerString
{
get
{
if (ReferenceEquals(mManufacturerString, null))
{
mManufacturerString = String.Empty;
if (Descriptor.ManufacturerStringIndex > 0)
{
mUsbDevice.GetString(out mManufacturerString, CurrentCultureLangID, Descriptor.ManufacturerStringIndex);
}
}
return mManufacturerString;
}
}
/// <summary>
/// Gets the string representation of the <see cref="UsbDeviceDescriptor.ProductStringIndex"/> string index.
/// </summary>
public String ProductString
{
get
{
if (ReferenceEquals(mProductString, null))
{
mProductString = String.Empty;
if (Descriptor.ProductStringIndex > 0)
{
mUsbDevice.GetString(out mProductString, CurrentCultureLangID, Descriptor.ProductStringIndex);
}
}
return mProductString;
}
}
/// <summary>
/// Gets the string representation of the <see cref="UsbDeviceDescriptor.SerialStringIndex"/> string index.
/// </summary>
public String SerialString
{
get
{
if (ReferenceEquals(mSerialString, null))
{
mSerialString = String.Empty;
if (Descriptor.SerialStringIndex > 0)
{
mUsbDevice.GetString(out mSerialString, 0x0409, Descriptor.SerialStringIndex);
}
}
return mSerialString;
}
}
///<summary>
///Returns a <see cref="T:System.String"/> that represents the current <see cref="UsbInterfaceInfo"/>.
///</summary>
///
///<returns>
///A <see cref="System.String"/> that represents the current <see cref="UsbInterfaceInfo"/>.
///</returns>
public override string ToString() { return ToString("", UsbDescriptor.ToStringParamValueSeperator, UsbDescriptor.ToStringFieldSeperator); }
///<summary>
///Returns a <see cref="T:System.String"/> that represents the current <see cref="UsbInterfaceInfo"/>.
///</summary>
///
///<param name="prefixSeperator">The field prefix string.</param>
///<param name="entitySperator">The field/value seperator string.</param>
///<param name="suffixSeperator">The value suffix string.</param>
///<returns>A formatted representation of the <see cref="UsbInterfaceInfo"/>.</returns>
public string ToString(string prefixSeperator, string entitySperator, string suffixSeperator)
{
string[] names = {"ManufacturerString", "ProductString", "SerialString"};
Object[] values = {ManufacturerString, ProductString, SerialString};
return Descriptor.ToString(prefixSeperator, entitySperator, suffixSeperator) +
Helper.ToString(prefixSeperator, names, entitySperator, values, suffixSeperator);
}
internal static bool GetDeviceDescriptor(UsbDevice usbDevice, out UsbDeviceDescriptor deviceDescriptor)
{
if (usbDevice.mCachedDeviceDescriptor!=null)
{
deviceDescriptor = usbDevice.mCachedDeviceDescriptor;
return true;
}
deviceDescriptor = new UsbDeviceDescriptor();
GCHandle gcDeviceDescriptor = GCHandle.Alloc(deviceDescriptor, GCHandleType.Pinned);
int ret;
bool bSuccess = usbDevice.GetDescriptor((byte) DescriptorType.Device,
0,
0,
gcDeviceDescriptor.AddrOfPinnedObject(),
UsbDeviceDescriptor.Size,
out ret);
gcDeviceDescriptor.Free();
if (bSuccess) return true;
return false;
}
}
}
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