internal HardwareInstance(Microsoft.SPOT.Hardware.SPI.SPI_module module) { Sharing = Socket.SocketInterfaces.SpiSharing.Shared; Users = 0; Module = module; }
internal HardwareInstance(Hardware.SPI.SPI_module module) { Sharing = SpiSharing.Shared; Users = 0; Module = module; }
private SPIInstance(Socket socket, Microsoft.SPOT.Hardware.SPI.SPI_module spimodule) { this.SPIModule = spimodule; this.SharingMode = Sharing.Shared; this.Users = 0; this.socket = socket; }
/// <summary> /// /// </summary> /// <param name="socket">The <see cref="Socket"/> for the <see cref="SPI"/> interface.</param> /// <param name="spiConfiguration">The <see cref="Configuration"/> object for the <see cref="SPI"/> interface.</param> /// <param name="sharingMode">The <see cref="Sharing"/> mode of the <see cref="SPI"/> interface.</param> /// <param name="chipSelectSocket">The chip select <see cref="Socket"/>of the <see cref="SPI"/> interface.</param> /// <param name="chipSelectPin">The <see cref="Socket"/></param> /// <param name="module">The <see cref="Module"/> that is connected to the <see cref="SPI"/> interface.</param> public SPI(Socket socket, Configuration spiConfiguration, Sharing sharingMode, Socket chipSelectSocket, Socket.Pin chipSelectPin, Module module) { socket.EnsureTypeIsSupported('S', module); Cpu.Pin reservedSelectPin = Socket.UnspecifiedPin; if (chipSelectSocket != null) { reservedSelectPin = chipSelectSocket.ReservePin(chipSelectPin, module); } if (socket.SPIModule != Socket.SocketInterfaces.SPIMissing) { Interface = new NativeSpi(socket, spiConfiguration == null ? null : new Socket.SocketInterfaces.SpiConfiguration( spiConfiguration.ChipSelectActiveState, spiConfiguration.ChipSelectSetupTime, spiConfiguration.ChipSelectHoldTime, spiConfiguration.ClockIdleState, spiConfiguration.ClockEdge, spiConfiguration.ClockRateKHz, false), (Socket.SocketInterfaces.SpiSharing)sharingMode, reservedSelectPin, module, socket.SPIModule); } else { Interface = socket.SpiIndirector(socket, spiConfiguration == null ? null : new Socket.SocketInterfaces.SpiConfiguration( spiConfiguration.ChipSelectActiveState, spiConfiguration.ChipSelectSetupTime, spiConfiguration.ChipSelectHoldTime, spiConfiguration.ClockIdleState, spiConfiguration.ClockEdge, spiConfiguration.ClockRateKHz, false), (Socket.SocketInterfaces.SpiSharing)sharingMode, chipSelectSocket, chipSelectPin, null, default(Socket.Pin), module); } _spiModule = socket.SPIModule; }
private static Microsoft.SPOT.Hardware.SPI.Configuration ToNativeConfiguration(Socket.SocketInterfaces.SpiConfiguration config, Cpu.Pin chipSelectPin, Microsoft.SPOT.Hardware.SPI.SPI_module spiModule) { if (config == null) { return(new Microsoft.SPOT.Hardware.SPI.Configuration(chipSelectPin, false, 0, 0, false, false, 0, spiModule)); } return(new Microsoft.SPOT.Hardware.SPI.Configuration( chipSelectPin, config.IsChipSelectActiveHigh, config.ChipSelectSetupTime, config.ChipSelectHoldTime, config.IsClockIdleHigh, config.IsClockSamplingEdgeRising, config.ClockRateKHz, spiModule)); }
public NativeSpi(Socket socket, Socket.SocketInterfaces.SpiConfiguration configuration, Socket.SocketInterfaces.SpiSharing sharing, Cpu.Pin chipSelectPin, Module module, Microsoft.SPOT.Hardware.SPI.SPI_module spiModule) { _hardwareInstance = GetAndUseInstance(socket, sharing, module, spiModule); _chipSelectPin = chipSelectPin; _configuration = ToNativeConfiguration(configuration, chipSelectPin, spiModule); if (_hardwareInstance.Interface == null && _configuration != null) { _hardwareInstance.Interface = new Microsoft.SPOT.Hardware.SPI(_configuration); } }
private static HardwareInstance GetAndUseInstance(Socket socket, Socket.SocketInterfaces.SpiSharing sharing, Module module, Microsoft.SPOT.Hardware.SPI.SPI_module spiModule) { if (spiModule == Socket.SocketInterfaces.SPIMissing) { // this is a mainboard error that should not happen (we already check for it in SocketInterfaces.RegisterSocket) but just in case... throw Socket.InvalidSocketException.FunctionalityException(socket, "SPI"); } HardwareInstance foundInstance = null; for (int i = 0; i < Instances.Count; i++) { HardwareInstance instance = (HardwareInstance)Instances[i]; if (instance.Module == spiModule) { foundInstance = instance; } } if (foundInstance == null) { Instances.Add(foundInstance = new HardwareInstance(spiModule)); } if (foundInstance.Users == 0) { socket.ReservePin(Socket.Pin.Seven, module); socket.ReservePin(Socket.Pin.Eight, module); socket.ReservePin(Socket.Pin.Nine, module); } else { if (foundInstance.Sharing != Socket.SocketInterfaces.SpiSharing.Shared) { throw new Exception("SPI bus " + spiModule + " is already reserved, cannot instantiate it again."); } if (foundInstance.Sharing == Socket.SocketInterfaces.SpiSharing.Exclusive) { throw new Exception("SPI bus " + spiModule + " is already shared among " + foundInstance.Users + " users, cannot instantiate it for exclusive use."); } } lock (foundInstance) { foundInstance.Users++; foundInstance.Sharing = sharing; } return(foundInstance); }
public NativeSpi(Socket socket, SpiConfiguration configuration, SpiSharing sharing, Hardware.Cpu.Pin chipSelectPin, Hardware.Cpu.Pin busyPin, Module module, Hardware.SPI.SPI_module spiModule) { _hardwareInstance = GetAndUseInstance(socket, sharing, module, spiModule); _chipSelectPin = chipSelectPin; _busyPin = busyPin; _configuration = ToNativeConfiguration(configuration, chipSelectPin, busyPin, spiModule); if (_hardwareInstance.Interface == null && _configuration != null) { _hardwareInstance.Interface = new Hardware.SPI(_configuration); } }
/// <summary> /// /// </summary> /// <param name="socket">The <see cref="Socket"/> for the <see cref="SPI"/> interface.</param> /// <param name="spiConfiguration">The <see cref="Configuration"/> object for the <see cref="SPI"/> interface.</param> /// <param name="sharingMode">The <see cref="Sharing"/> mode of the <see cref="SPI"/> interface.</param> /// <param name="chipSelectSocket">The chip select <see cref="Socket"/>of the <see cref="SPI"/> interface.</param> /// <param name="chipSelectPin">The <see cref="Socket"/></param> /// <param name="module">The <see cref="Module"/> that is connected to the <see cref="SPI"/> interface.</param> public SPI(Socket socket, Configuration spiConfiguration, Sharing sharingMode, Socket chipSelectSocket, Socket.Pin chipSelectPin, Module module) { socket.EnsureTypeIsSupported('S', module); Cpu.Pin reservedSelectPin = Socket.UnspecifiedPin; if (chipSelectSocket != null) reservedSelectPin = chipSelectSocket.ReservePin(chipSelectPin, module); if (socket.SPIModule != Socket.SocketInterfaces.SPIMissing) Interface = new NativeSpi(socket, spiConfiguration == null ? null : new Socket.SocketInterfaces.SpiConfiguration( spiConfiguration.ChipSelectActiveState, spiConfiguration.ChipSelectSetupTime, spiConfiguration.ChipSelectHoldTime, spiConfiguration.ClockIdleState, spiConfiguration.ClockEdge, spiConfiguration.ClockRateKHz, false), (Socket.SocketInterfaces.SpiSharing)sharingMode, reservedSelectPin, module, socket.SPIModule); else Interface = socket.SpiIndirector(socket, spiConfiguration == null ? null : new Socket.SocketInterfaces.SpiConfiguration( spiConfiguration.ChipSelectActiveState, spiConfiguration.ChipSelectSetupTime, spiConfiguration.ChipSelectHoldTime, spiConfiguration.ClockIdleState, spiConfiguration.ClockEdge, spiConfiguration.ClockRateKHz, false), (Socket.SocketInterfaces.SpiSharing)sharingMode, chipSelectSocket, chipSelectPin, null, default(Socket.Pin), module); _spiModule = socket.SPIModule; }