public GpioInterruptMonitor(Gpio gpio)
{
_gpio = gpio;
// Started as pull up.
_currentState = GpioState.High;
}
public void WriteState(int gpioId, GpioState state)
{
lock (_syncRoot)
{
WrtieGpioState(gpioId, state);
}
}
public void WriteState(int gpioId, GpioState state)
{
lock (_syncRoot)
{
var fileContent = state == GpioState.Low ? "0" : "1";
File.WriteAllText("/sys/class/gpio/gpio" + gpioId + "/value", fileContent, Encoding.ASCII);
}
}
protected virtual void onGpioStateChanged(GpioState state)
{
if (IsSubscribed(state.PinId))
{
saveState(state);
Logger?.LogInformation($"[GpioStateChanged]: {state}");
}
}
public void NotifyGpioStateChanged(int gpioId, GpioState oldState, GpioState newState)
{
GpioStateChanged?.Invoke(this, new GpioAdapterStateChangedEventArgs
{
GpioId = gpioId,
OldState = oldState,
NewState = newState
});
}
public void WriteState(string hostId, int gpioId, GpioState state)
{
if (hostId == null)
{
throw new ArgumentNullException(nameof(hostId));
}
GetAdapter(hostId).WriteState(gpioId, state);
}
/// <summary>
/// Changes the internal state of a GPIO channel
/// </summary>
/// <param name="id">The GPIO ID</param>
/// <param name="state">The state to change to</param>
private void ChangeState(string id, GpioState state)
{
if (this.chanelStates.ContainsKey(id))
{
this.chanelStates[id] = state;
}
else
{
this.chanelStates.Add(id, state);
}
}
override protected async Task <GpioState> readPinAsync(int pinId)
{
GpioState result = null;
GpioPin pin = controller.GetGpioPinByBcmPinNumber(pinId);
if (pin != null)
{
result = new GpioState(pinId, 0, DateTime.Now, true);
result.Value = await pin.ReadLevelAsync();
}
return(result);
}
private void DispatchGpioStateChangedEvent(string gpioHostId, int gpioId, GpioState oldState, GpioState newState)
{
var properties = new WirehomeDictionary
{
["type"] = "gpio_registry.event.state_changed",
["gpio_host_id"] = gpioHostId,
["gpio_id"] = gpioId,
["old_state"] = oldState.ToString().ToLowerInvariant(),
["new_state"] = newState.ToString().ToLowerInvariant()
};
_messageBusService.Publish(properties);
}
override protected async Task <GpioState> readPinAsync(int pinId)
{
GpioState result = new GpioState(pinId, 0);
double dt = (DateTime.Now - startTime).TotalMilliseconds;
double period = 5000;
double phase = (dt % period) / period;
double signal = (double)GpioState.MaxValue * (0.5d + Math.Sin(phase * 2 * Math.PI) / 2d);
double noise = (rnd.NextDouble() - .5) * NoiseLevel;
result.Value = (int)(signal * (1 + noise));
await Task.Delay(5);
return(result);
}
public bool Poll(out GpioState oldState, out GpioState newState)
{
oldState = _currentState;
newState = _gpio.Read();
if (newState == _currentState)
{
return(false);
}
_currentState = newState;
return(true);
}
public void Write(GpioState state)
{
using (var fileStream = File.OpenWrite(_valuePath))
{
if (state == GpioState.Low)
{
// ASCII '0' is DEC 48.
fileStream.WriteByte(48);
}
else
{
// ASCII '1' is DEC 49.
fileStream.WriteByte(49);
}
}
}
//public GpioStateHub(ILogger log) : base(log) { }
public async Task Broadcast(DateTime timestamp, int pinId, bool isAnalog, int value)
{
GpioState st = new GpioState()
{
PinId = pinId, IsAnalog = isAnalog, Value = value
};
logger.LogDebug($"Broadcasting to all other clients ...");
IHubCallerClients hubClients = Clients;
IClientProxy clients = Clients.All;
IClientProxy all = Clients.All;
IClientProxy others = Clients.Others;
logger.LogDebug($"[GPIOState.Hub]; {st}");
await others.SendAsync("GpioState", timestamp, pinId, isAnalog, value);
}
protected virtual void saveState(GpioState state)
{
if (!ValidateState(state))
{
Logger?.LogWarning("Invalid GpioState, skipping save");
return;
}
if (!_history.ContainsKey(state.PinId))
{
_history.Add(state.PinId, new List <GpioState>());
}
if (!SaveHistory)
{
_history[state.PinId].Clear();
}
_history[state.PinId].Add(state);
}
public async Task StartMonitorAsync()
{
if (!IsConnected)
{
Logger?.LogError("Can't start monitoring, not connected");
return;
}
while (!cancelToken.IsCancellationRequested)
{
foreach (int pinId in _monitorList)
{
GpioState st = await readPinAsync(pinId);
saveState(st);
Logger?.LogDebug($"[SEND] GpioState:{st}");
// Finally send the value:
await _conn.SendAsync("Broadcast", st.Timestamp, st.PinId, st.IsAnalog, st.Value);
}
await Task.Delay(UpdateMilliseconds, cancelToken);
}
await _conn.DisposeAsync();
}
public GpioAdapterStateChangedEventArgs(int gpioId, GpioState oldState, GpioState newState)
{
GpioId = gpioId;
OldState = oldState;
NewState = newState;
}
public void WriteState(int gpio, GpioState state)
{
//_logger.Log(LogLevel.Information, $"FAKE SetState: GPIO = {gpio}; State = {state}");
}
public void NotifyGpioStateChanged(int gpioId, GpioState oldState, GpioState newState)
{
GpioStateChanged?.Invoke(this, new GpioAdapterStateChangedEventArgs(gpioId, oldState, newState));
}
public bool ValidateState(GpioState state) => IsValidPin(state?.PinId ?? InvalidPin);