//NfcTarget INfcInitiator.Poll(NfcModulation[] modulations, byte pollNr, byte period)
//{
// this.SetProperty(NfcProperty.NP_ACTIVATE_FIELD, false);
// this.SetProperty(NfcProperty.NP_HANDLE_CRC, true);
// this.SetProperty(NfcProperty.NP_HANDLE_PARITY, true);
// this.SetProperty(NfcProperty.NP_AUTO_ISO14443_4, true);
// this.SetProperty(NfcProperty.NP_ACTIVATE_FIELD, true);
// NfcTarget[] targets = new NfcTarget[10];
// GCHandle h = GCHandle.Alloc(targets, GCHandleType.Pinned);
// try
// {
// int count = NativeMethods.initiator_list_passive_targets(this.m_ptr, modulations[0], h.AddrOfPinnedObject(), targets.Length);
// if (count < 0)
// NfcException.Raise((NfcError)count);
// if (count == 0)
// return null;
// }
// finally
// {
// h.Free();
// }
//}
NfcTarget INfcInitiator.Poll(NfcModulation[] modulations, byte pollNr, byte period)
{
IntPtr nfcTarget = IntPtr.Zero;
int count;
GCHandle gc = GCHandle.Alloc(modulations, GCHandleType.Pinned);
try
{
int size = Marshal.SizeOf <Interop.nfc_target>();
nfcTarget = Marshal.AllocHGlobal(size);
Console.WriteLine("Allocated nfcTarget memory. size={0} ptr={1}", size, nfcTarget);
count = NativeMethods.initiator_poll_target(this.handle, modulations, (uint)modulations.Length, pollNr, period, nfcTarget);
Console.WriteLine($"episage nfc returned {count}");
}
finally
{
Marshal.FreeHGlobal(nfcTarget);
gc.Free();
}
if (count < 0)
{
Console.WriteLine("LastError={0}", this.LastError);
NfcException.Raise((NfcError)count);
}
if (count == 0)
{
return(null);
}
NfcTarget target = new NfcTarget(this, nfcTarget);
return(target);
}
public static FreefareTag AsFreefareTag(this NfcTarget target)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
IntPtr ptrTag = NativeMethods.freefare_tag_new(target.Device.DangerousGetHandle(), target.Handle);
if (ptrTag == IntPtr.Zero)
{
Console.WriteLine("A");
return(null);
}
FreefareTag tag = FreefareTag.Build(ptrTag, true, target.Device, target);
return(tag);
}
private static void PollAsync(object state)
{
PollData data = (PollData)state;
NfcTarget result = null;
try
{
int i = 0;
Action cancelPolling = () =>
{
var error = NativeMethods.abort_command(data.Initiator.DangerousGetHandle());
};
data.CancellationToken.Register(cancelPolling);
while (result == null && !data.CancellationToken.IsCancellationRequested)
{
result = ((INfcInitiator)data.Initiator).Poll(new[] { data.Modulations[i] }, 1, data.Period);
i = (i + 1) % data.Modulations.Length;
}
if (data.CancellationToken.IsCancellationRequested)
{
data.Tcs.TrySetCanceled(data.CancellationToken);
}
else
{
data.Tcs.TrySetResult(result);
}
}
catch (Exception ex)
{
data.Tcs.TrySetException(ex);
}
finally
{
data.Tcs.TrySetResult(result);
}
}
public static bool TasteMifareClassic4k(this NfcTarget target)
{
return(NativeMethods.mifare_classic4k_taste(target.Device.DangerousGetHandle(), target.Handle));
}
public static bool TasteNTag21x(this NfcTarget target)
{
return(NativeMethods.ntag21x_taste(target.Device.DangerousGetHandle(), target.Handle));
}
internal NfcSelectedTarget(IntPtr targetPtr, NfcDevice device) : base(targetPtr, true)
{
this.m_device = device;
this.m_target = new NfcTarget(this.m_device, targetPtr);
}