static public uint ReadRegister(ONIXDeviceDescriptor descriptor, uint address)
{
using (var c = ONIContextManager.ReserveContext(descriptor.Address.HardwareSlot))
{
return(c.Context.ReadRegister((uint)descriptor.Address.Address, address));
}
}
static public void WriteRegister(ONIXDeviceDescriptor descriptor, uint address, uint value)
{
using (var c = ONIContextManager.ReserveContext(descriptor.Address.HardwareSlot))
{
c.Context.WriteRegister((uint)descriptor.Address.Address, address, value);
}
}
public I2CConfiguration(ONIDeviceAddress address, DeviceID id, uint i2cAddress)
{
Valid = ONIXDeviceDescriptor.IsValid(id, address);
context = ONIContextManager.ReserveContext(address.HardwareSlot);
deviceAddress = address.Address;
I2CAddress = i2cAddress;
#if DEBUG
Console.WriteLine("I2C context reserved by " + this.GetType());
#endif
}
public IObservable <TSource> Process(IObservable <TSource> source)
{
return(Observable.Using(
cancellationToken => ONIContextManager.ReserveOpenContextAsync(DeviceAddress.HardwareSlot),
(contextDisposable, cancellationToken) =>
{
return ONIXDeviceDescriptor.IsValid(ID, DeviceAddress)
? Task.FromResult(source
.Do(input => { OnNext(contextDisposable.Context, input); })
.Finally(() => OnFinally(contextDisposable.Context)))
: throw new WorkflowException("Selected device address is invalid.");
}
));
}
protected void WriteRegister(uint address, uint value, bool silent = true)
{
// NB: This is a redundant check but is here even throwing and catching within the
// function body results in a huge UI performance hit.
if (silent && !ONIXDeviceDescriptor.IsValid(ID, DeviceAddress))
{
Console.Error.WriteLine("Register write was attempted with an invalid device " +
"descriptor. Device ID: " + ID + ", Address: " + DeviceAddress.ToString() + ".");
}
try
{
WriteRegister(new ONIXDeviceDescriptor(ID, DeviceAddress), address, value);
}
catch (Exception ex) when(silent && (ex is ArgumentException || ex is oni.ONIException))
{
System.Console.Error.WriteLine(ex.Message);
}
}