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Re-worked serial port and CircuitPython detection

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This commit is contained in:
Edward Wright 2021-10-21 10:48:22 -04:00
parent 6bd3b9c589
commit 75d6bb250e
1 changed files with 77 additions and 48 deletions
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95
SimplySerial/SimplySerial.cs
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@ -385,14 +385,15 @@ namespace SimplySerial
if (availablePorts.Count >= 1)
{
Console.WriteLine("\nPORT\tVID\tPID\tDESCRIPTION");
Console.WriteLine("------------------------------------------------------------");
Console.WriteLine("----------------------------------------------------------------------");
foreach (ComPort p in availablePorts)
{
Console.WriteLine("{0}\t{1}\t{2}\t{3}",
Console.WriteLine("{0}\t{1}\t{2}\t{3} {4}",
p.name,
p.vid,
p.pid,
(p.board.isCircuitPython) ? (p.board.make + " " + p.board.model) : p.description
(p.board.isCircuitPython) ? (p.board.make + " " + p.board.model) : p.description,
((p.busDescription.Length > 0) && !p.description.StartsWith(p.busDescription)) ? ("[" + p.busDescription + "]") : ""
);
}
Console.WriteLine("");
@ -648,6 +649,7 @@ namespace SimplySerial
public string vid;
public string pid;
public string description;
public string busDescription;
public Board board;
}
@ -659,6 +661,8 @@ namespace SimplySerial
/// https://github.com/freakone/serial-reader
/// Some modifications were based on this stackoverflow thread:
/// https://stackoverflow.com/questions/11458835/finding-information-about-all-serial-devices-connected-through-usb-in-c-sharp
/// Hardware Bus Description through WMI is based on Simon Mourier's answer on this stackoverflow thread:
/// https://stackoverflow.com/questions/69362886/get-devpkey-device-busreporteddevicedesc-from-win32-pnpentity-in-c-sharp
/// </summary>
/// <returns>List of available serial ports</returns>
private static List<ComPort> GetSerialPorts()
@ -666,20 +670,36 @@ namespace SimplySerial
const string vidPattern = @"VID_([0-9A-F]{4})";
const string pidPattern = @"PID_([0-9A-F]{4})";
const string namePattern = @"(?<=\()COM[0-9]{1,3}(?=\)$)";
const string query = "SELECT * FROM Win32_PnPEntity WHERE ClassGuid=\"{4d36e978-e325-11ce-bfc1-08002be10318}\"";
using (var searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_PnPEntity WHERE ClassGuid=\"{4d36e978-e325-11ce-bfc1-08002be10318}\""))
{
var ports = searcher.Get().Cast<ManagementBaseObject>().ToList();
List<ComPort> detectedPorts = ports.Select(p =>
// as per INTERFACE_PREFIXES in adafruit_board_toolkit
// (see https://github.com/adafruit/Adafruit_Board_Toolkit/blob/main/adafruit_board_toolkit)
string[] cpb_descriptions = new string[] { "CircuitPython CDC ", "Sol CDC ", "StringCarM0Ex CDC " };
List<ComPort> detectedPorts = new List<ComPort>();
foreach (var p in new ManagementObjectSearcher("root\\CIMV2", query).Get().OfType<ManagementObject>())
{
ComPort c = new ComPort();
// extract and clean up port name and number
c.name = p.GetPropertyValue("Name").ToString();
c.vid = p.GetPropertyValue("PNPDeviceID").ToString();
c.description = p.GetPropertyValue("Caption").ToString();
Match mName = Regex.Match(c.name, namePattern);
if (mName.Success)
{
c.name = mName.Value;
c.num = int.Parse(c.name.Substring(3));
}
Match mVID = Regex.Match(c.vid, vidPattern, RegexOptions.IgnoreCase);
Match mPID = Regex.Match(c.vid, pidPattern, RegexOptions.IgnoreCase);
// if the port name or number cannot be determined, skip this port and move on
if (c.num < 1)
continue;
// get the device's VID and PID
string pidvid = p.GetPropertyValue("PNPDeviceID").ToString();
// extract and clean up device's VID
Match mVID = Regex.Match(pidvid, vidPattern, RegexOptions.IgnoreCase);
if (mVID.Success)
{
c.vid = mVID.Groups[1].Value;
@ -688,41 +708,50 @@ namespace SimplySerial
else
c.vid = "----";
// extract and clean up device's PID
Match mPID = Regex.Match(pidvid, pidPattern, RegexOptions.IgnoreCase);
if (mPID.Success)
{
c.pid = mPID.Groups[1].Value;
c.pid = c.pid.Substring(0, Math.Min(4, c.vid.Length));
c.pid = c.pid.Substring(0, Math.Min(4, c.pid.Length));
}
else
c.pid = "----";
Match mName = Regex.Match(c.name, namePattern);
if (mName.Success)
{
c.name = mName.Value;
c.num = int.Parse(c.name.Substring(3));
if (c.num == 0)
c.name = "?";
}
else
{
c.name = "?";
c.num = 0;
}
// extract the device's friendly description (caption)
c.description = p.GetPropertyValue("Caption").ToString();
// attempt to match this device with a known board
c.board = MatchBoard(c.vid, c.pid);
return c;
}).ToList();
// remove all unusable ports from the list
detectedPorts.RemoveAll(p => p.name == "?");
return (detectedPorts);
// extract the device's hardware bus description
c.busDescription = "";
var inParams = new object[] { new string[] { "DEVPKEY_Device_BusReportedDeviceDesc" }, null };
p.InvokeMethod("GetDeviceProperties", inParams);
var outParams = (ManagementBaseObject[])inParams[1];
if (outParams.Length > 0)
{
var data = outParams[0].Properties.OfType<PropertyData>().FirstOrDefault(d => d.Name == "Data");
if (data != null)
{
c.busDescription = data.Value.ToString();
}
}
// we can determine if this is a CircuitPython board by it's bus description
foreach (string prefix in cpb_descriptions)
{
if (c.busDescription.StartsWith(prefix))
c.board.isCircuitPython = true;
}
// add this port to our list of detected ports
detectedPorts.Add(c);
}
return detectedPorts;
}
/// <summary>
/// Custom structure containing information about supported CircuitPython boards