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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.Text.RegularExpressions;
using LibUsbDotNet.Internal.UsbRegex;
namespace LibUsbDotNet.Main
{
/// <summary> USB device symbolic names are persistent accrossed boots and uniquely identify each device.
/// </summary>
/// <remarks> As well as uniquely identify connected devices, the UsbSymbolicName class parses the symbolic name key into usable fields.
/// </remarks>
public class UsbSymbolicName
{
private static RegHardwareID _regHardwareId;
private static RegSymbolicName _regSymbolicName;
private readonly string mSymbolicName;
private Guid mClassGuid = Guid.Empty;
private bool mIsParsed;
private int mProductID;
private int mRevisionCode;
private string mSerialNumber = String.Empty;
private int mVendorID;
internal UsbSymbolicName(string symbolicName) { mSymbolicName = symbolicName; }
private static RegSymbolicName RegSymbolicName
{
get
{
if (ReferenceEquals(_regSymbolicName, null))
{
_regSymbolicName = new RegSymbolicName();
}
return _regSymbolicName;
}
}
private static RegHardwareID RegHardwareId
{
get
{
if (ReferenceEquals(_regHardwareId, null))
{
_regHardwareId = new RegHardwareID();
}
return _regHardwareId;
}
}
/// <summary>
/// The full symbolic name of the device.
/// </summary>
public string FullName
{
get
{
if (mSymbolicName != null) return mSymbolicName.TrimStart(new char[] {'\\', '?'});
return String.Empty;
}
}
/// <summary>
/// VendorId parsed out of the <see cref="UsbSymbolicName.FullName"/>
/// </summary>
public int Vid
{
get
{
Parse();
return mVendorID;
}
}
/// <summary>
/// ProductId parsed out of the <see cref="UsbSymbolicName.FullName"/>
/// </summary>
public int Pid
{
get
{
Parse();
return mProductID;
}
}
/// <summary>
/// SerialNumber parsed out of the <see cref="UsbSymbolicName.FullName"/>
/// </summary>
public string SerialNumber
{
get
{
Parse();
return mSerialNumber;
}
}
/// <summary>
/// Device class parsed out of the <see cref="UsbSymbolicName.FullName"/>
/// </summary>
public Guid ClassGuid
{
get
{
Parse();
return mClassGuid;
}
}
/// <summary>
/// Usb device revision number.
/// </summary>
public int Rev
{
get
{
Parse();
return mRevisionCode;
}
}
/// <summary>
/// Parses registry strings containing USB information. This function can Parse symbolic names as well as hardware ids, compatible ids, etc.
/// </summary>
/// <param name="identifiers"></param>
/// <returns>A <see cref="UsbSymbolicName"/> class with all the available information from the <paramref name="identifiers"/> string.</returns>
/// <remarks>
/// <code>
/// List<UsbRegistryDeviceInfo> regDeviceList = UsbGlobals.RegFindDevices();
/// foreach (UsbRegistryDeviceInfo regDevice in mDevList)
/// {
/// string[] hardwareIds = (string[])regDevice.Properties[DevicePropertyType.HardwareID];
/// UsbSymbolicName usbHardwareID = UsbSymbolicName.Parse(hardwareIds[0]);
/// Debug.Print(string.Format("Vid:0x{0:X4} Pid:0x{1:X4}", usbHardwareID.Vid, usbHardwareID.Pid));
/// }
/// </code>
/// </remarks>
public static UsbSymbolicName Parse(string identifiers) { return new UsbSymbolicName(identifiers); }
///<summary>
///Returns a <see cref="T:System.String"/> that represents the current <see cref="UsbSymbolicName"/>.
///</summary>
///
///<returns>
///A <see cref="System.String"/> that represents the current <see cref="UsbSymbolicName"/>.
///</returns>
public override string ToString()
{
object[] o = new object[] {FullName, Vid.ToString("X4"), Pid.ToString("X4"), SerialNumber, ClassGuid};
return string.Format("FullName:{0}\r\nVid:0x{1}\r\nPid:0x{2}\r\nSerialNumber:{3}\r\nClassGuid:{4}\r\n", o);
}
private void Parse()
{
if (!mIsParsed)
{
mIsParsed = true;
if (mSymbolicName != null)
{
MatchCollection matches = RegSymbolicName.Matches(mSymbolicName);
foreach (Match match in matches)
{
Group gVid = match.Groups[(int) NamedGroupType.Vid];
Group gPid = match.Groups[(int) NamedGroupType.Pid];
Group gRev = match.Groups[(int) NamedGroupType.Rev];
Group gString = match.Groups[(int) NamedGroupType.String];
Group gClass = match.Groups[(int) NamedGroupType.ClassGuid];
if (gVid.Success && mVendorID == 0)
{
int.TryParse(gVid.Captures[0].Value, NumberStyles.HexNumber, null, out mVendorID);
}
if (gPid.Success && mProductID == 0)
{
int.TryParse(gPid.Captures[0].Value, NumberStyles.HexNumber, null, out mProductID);
}
if (gRev.Success && mRevisionCode == 0)
{
int.TryParse(gRev.Captures[0].Value, out mRevisionCode);
}
if ((gString.Success) && mSerialNumber == String.Empty)
{
mSerialNumber = gString.Captures[0].Value;
}
if ((gClass.Success) && mClassGuid == Guid.Empty)
{
try
{
mClassGuid = new Guid(gClass.Captures[0].Value);
}
catch (Exception)
{
mClassGuid = Guid.Empty;
}
}
}
}
}
}
}
}
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