IGpioControllerProvider Interface

Namespace: GHIElectronics.TinyCLR.Devices.Gpio.Provider · Assembly: GHIElectronics.TinyCLR.Devices.Gpio

Provider contract for a GPIO controller. Most users call GpioController / GpioPin directly; implement this interface only when supplying a custom or virtual controller.

public interface IGpioControllerProvider : IDisposable

Properties

PinCount

int PinCount { get; }

Total number of pins exposed by this controller.

Methods

OpenPin(int pin)

void OpenPin(int pin)

Acquires exclusive access to the specified pin.

Parameter	Type	Description
pin	int	Controller-relative pin index.

ClosePin(int pin)

void ClosePin(int pin)

Releases a previously opened pin.

Parameter	Type	Description
pin	int	Controller-relative pin index.

IsDriveModeSupported(int pin, GpioPinDriveMode mode)

bool IsDriveModeSupported(int pin, GpioPinDriveMode mode)

Tests whether the pin supports a given drive mode.

Parameter	Type	Description
pin	int	Controller-relative pin index.
mode	GpioPinDriveMode	The drive mode to test.

Returns bool — True if the mode is supported on that pin.

SetPinChangedHandler(int pin, GpioPinEdge edge, GpioPinValueChangedEventHandler value)

void SetPinChangedHandler(int pin, GpioPinEdge edge, GpioPinValueChangedEventHandler value)

Installs or replaces the edge-change handler for a pin.

Parameter	Type	Description
pin	int	Controller-relative pin index.
edge	GpioPinEdge	Which edges should raise the event.
value	GpioPinValueChangedEventHandler	Delegate to invoke on a matching edge.

ClearPinChangedHandler(int pin)

void ClearPinChangedHandler(int pin)

Removes any previously installed edge-change handler.

Parameter	Type	Description
pin	int	Controller-relative pin index.

GetDebounceTimeout(int pin)

TimeSpan GetDebounceTimeout(int pin)

Returns the pin's current debounce window.

Parameter	Type	Description
pin	int	Controller-relative pin index.

Returns TimeSpan

SetDebounceTimeout(int pin, TimeSpan value)

void SetDebounceTimeout(int pin, TimeSpan value)

Sets the pin's debounce window.

Parameter	Type	Description
pin	int	Controller-relative pin index.
value	TimeSpan	Minimum stable interval before an edge is reported.

GetDriveMode(int pin)

GpioPinDriveMode GetDriveMode(int pin)

Returns the pin's currently configured drive mode.

Parameter	Type	Description
pin	int	Controller-relative pin index.

Returns GpioPinDriveMode

SetDriveMode(int pin, GpioPinDriveMode value)

void SetDriveMode(int pin, GpioPinDriveMode value)

Configures the pin's drive mode.

Parameter	Type	Description
pin	int	Controller-relative pin index.
value	GpioPinDriveMode	Drive mode to apply.

Read(int pin)

GpioPinValue Read(int pin)

Samples the pin and returns its current logical level.

Parameter	Type	Description
pin	int	Controller-relative pin index.

Returns GpioPinValue

Write(int pin, GpioPinValue value)

void Write(int pin, GpioPinValue value)

Drives an output pin to the specified level.

Parameter	Type	Description
pin	int	Controller-relative pin index.
value	GpioPinValue	Level to drive.

TransferFeature(int pinSource, int pinDestination, uint mode, uint type, uint direction, uint speed, uint alternate)

void TransferFeature(int pinSource, int pinDestination, uint mode, uint type, uint direction, uint speed, uint alternate)

Re-routes a pin's signal through the controller's alternate-function fabric. Advanced; used by peripheral drivers (UART/SPI/I2C/etc.) to claim package pins.

Parameter	Type	Description
pinSource	int	Source pin index.
pinDestination	int	Destination pin index.
mode	uint	Platform-specific mode bits.
type	uint	Platform-specific type bits.
direction	uint	Platform-specific direction bits.
speed	uint	Platform-specific speed/slew bits.
alternate	uint	Alternate-function index.