public override async Task <List <Device> > Scan()
{
// TODO: Handle mid-scan disconnects
var output = new List <Device>();
//if (timestampSize > 0b11) {
// throw new ArgumentException($"timestampSize cannot be higher than {0b11}.");
//}
//if (timestampResolution > 0b1111) {
// throw new ArgumentException($"timestampResolution cannot be higher than {0b1111}.");
//}
Console.Write(" Scan init");
try {
port.Flush(); // Flush previous output
port.WriteByte((byte)((byte)Command.Scan | timestampSize));
port.WriteByte((byte)(timestampResolution & 0xF));
//await Task.Delay(200);
uint index_counter = 0;
byte moreDevs;
do
{
Console.Write(" 1111");
byte devClass = moreDevs = await port.ReadByte();
devClass &= 1;
if ((moreDevs & 0x80) != 0)
{
var productID = await port.Read(4);
var uniqueID = await port.Read(4);
Console.WriteLine(BitConverter.ToUInt32(productID, 0));
if (devClass == (byte)DeviceClass.Buffer)
{
var shlAmount = await port.ReadByte();
var bufferSize = await port.ReadByte() | (await port.ReadByte() << 8);
output.Add(new BufferDevice(
this,
BitConverter.ToUInt32(productID, 0),
BitConverter.ToUInt32(uniqueID, 0),
index_counter++,
(ulong)bufferSize << shlAmount
));
throw new NotImplementedException("Buffer devices are not implemented yet");
}
else
{
Console.Write(" 2222");
var fieldCount = await port.ReadByte();
//Console.WriteLine($"> There are {fieldCount} fields");
var fields = new List <FieldType>();
for (int i = 0; i < fieldCount; i += 4)
{
var currentFieldTypes = await port.ReadByte();
for (int j = i; j < Math.Min(i + 4, fieldCount); j++)
{
//Console.WriteLine($"> New field {currentFieldTypes & 0b11}");
fields.Add((FieldType)(currentFieldTypes & 0b11));
currentFieldTypes >>= 2;
}
}
Console.Write(" 3333");
output.Add(new PeripheralDevice(
this,
BitConverter.ToUInt32(productID, 0),
BitConverter.ToUInt32(uniqueID, 0),
index_counter++,
fields
));
}
}
} while (moreDevs != 0);
} catch (InvalidOperationException) {
throw new PortClosedException();
};
return(output);
}