Class BoardHardware

java.lang.Object

com.codename1.hardware.Hardware

com.codename1.impl.KernelHardware

com.codename1.backend.BoardHardware

public final class BoardHardware
extends com.codename1.impl.KernelHardware

The headless backend's Hardware: the same kernel interfaces as the Linux port, through the same C (cn1_hardware_impl.h, wrapped in cn1_backend_hardware.c). A gateway or sensor hub serves its REST API and drives its buses from one binary. Listener callbacks run on the pin's own watcher thread, since a server has no event dispatch thread. Built for a host other than Linux every primitive answers -ENOSYS.

Field Summary

Fields inherited from class Hardware

EDGE_RESULT_FALLING, EDGE_RESULT_RISING, EDGE_TIMEOUT, FEATURE_BACKLIGHT, FEATURE_CAN, FEATURE_GPIO, FEATURE_I2C, FEATURE_PWM, FEATURE_SERIAL, FEATURE_SPI, FEATURE_WATCHDOG

Method Summary

Modifier and Type	Method	Description
static void	install()	Makes this the instance Hardware.getInstance() returns.
protected int	rawBacklight(int op, int value)	op: 0 read, 1 maximum, 2 write value.
protected int	rawCanOpen(String iface)
protected int	rawCanReceive(int handle, int[] idOut, byte[] data, int timeoutMs)
protected int	rawCanSend(int handle, int id, boolean extended, byte[] data, int len)
protected void	rawClose(int handle, boolean disarm)
protected int	rawGpioOpen(String chip, int line, boolean output, boolean high, int bias, int edges)
protected int	rawGpioRead(int handle)
protected int	rawGpioWaitEdge(int handle, int timeoutMs, long[] timestampOut)
protected int	rawGpioWrite(int handle, boolean high)
protected int	rawI2cOpen(int bus, int address)
protected int	rawI2cTransfer(int handle, byte[] write, int writeLen, byte[] read, int readLen)
protected String	rawList(int kind)	kind: 0 GPIO chips, 1 I2C buses, 2 SPI devices, 3 serial ports, 4 CAN interfaces.
protected int	rawPwmConfigure(int handle, long periodNanos, long dutyNanos, boolean enabled)
protected int	rawPwmOpen(int chip, int channel)
protected int	rawSerialOpen(String device, int baud, int dataBits, int parity, int stopBits)
protected int	rawSerialRead(int handle, byte[] buf, int off, int len, int timeoutMs)
protected int	rawSerialWrite(int handle, byte[] buf, int off, int len)
protected int	rawSpiOpen(int bus, int chipSelect, int mode, int speedHz, int bitsPerWord)
protected int	rawSpiTransfer(int handle, byte[] tx, byte[] rx, int len)
protected int	rawWatchdogKick(int handle)
protected int	rawWatchdogOpen(int timeoutSeconds)

Methods inherited from class com.codename1.impl.KernelHardware

canOpen, canReceive, canSend, close, getBacklightBrightness, getMaxBacklightBrightness, getSupportedFeatures, gpioOpen, gpioRead, gpioWaitEdge, gpioWrite, i2cOpen, i2cTransfer, listCanInterfaces, listGpioChips, listI2cBuses, listSerialPorts, listSpiDevices, pwmConfigure, pwmOpen, serialOpen, serialRead, serialWrite, setBacklightBrightness, spiOpen, spiTransfer, watchdogKick, watchdogOpen

Methods inherited from class Hardware

deliver, getInstance, install, isSupported, isSupported, openCan, openGpioInput, openGpioOutput, openI2c, openPwm, openSerial, openSpi, openWatchdog, unsupported

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

install

public static void install()

Makes this the instance Hardware.getInstance() returns. The server calls it as it starts; calling it again does nothing.

rawList

protected String rawList(int kind)

Description copied from class: com.codename1.impl.KernelHardware

kind: 0 GPIO chips, 1 I2C buses, 2 SPI devices, 3 serial ports, 4 CAN interfaces. Names separated by newlines.

Specified by:

rawList in class com.codename1.impl.KernelHardware

rawBacklight

protected int rawBacklight(int op,
 int value)

Description copied from class: com.codename1.impl.KernelHardware

op: 0 read, 1 maximum, 2 write value.

Specified by:

rawBacklight in class com.codename1.impl.KernelHardware

rawGpioOpen

protected int rawGpioOpen(String chip,
 int line,
 boolean output,
 boolean high,
 int bias,
 int edges)

Specified by:

rawGpioOpen in class com.codename1.impl.KernelHardware

rawGpioRead

protected int rawGpioRead(int handle)

Specified by:

rawGpioRead in class com.codename1.impl.KernelHardware

rawGpioWrite

protected int rawGpioWrite(int handle,
 boolean high)

Specified by:

rawGpioWrite in class com.codename1.impl.KernelHardware

rawGpioWaitEdge

protected int rawGpioWaitEdge(int handle,
 int timeoutMs,
 long[] timestampOut)

Specified by:

rawGpioWaitEdge in class com.codename1.impl.KernelHardware

rawI2cOpen

protected int rawI2cOpen(int bus,
 int address)

Specified by:

rawI2cOpen in class com.codename1.impl.KernelHardware

rawI2cTransfer

protected int rawI2cTransfer(int handle,
 byte[] write,
 int writeLen,
 byte[] read,
 int readLen)

Specified by:

rawI2cTransfer in class com.codename1.impl.KernelHardware

rawSpiOpen

protected int rawSpiOpen(int bus,
 int chipSelect,
 int mode,
 int speedHz,
 int bitsPerWord)

Specified by:

rawSpiOpen in class com.codename1.impl.KernelHardware

rawSpiTransfer

protected int rawSpiTransfer(int handle,
 byte[] tx,
 byte[] rx,
 int len)

Specified by:

rawSpiTransfer in class com.codename1.impl.KernelHardware

rawSerialOpen

protected int rawSerialOpen(String device,
 int baud,
 int dataBits,
 int parity,
 int stopBits)

Specified by:

rawSerialOpen in class com.codename1.impl.KernelHardware

rawSerialRead

protected int rawSerialRead(int handle,
 byte[] buf,
 int off,
 int len,
 int timeoutMs)

Specified by:

rawSerialRead in class com.codename1.impl.KernelHardware

rawSerialWrite

protected int rawSerialWrite(int handle,
 byte[] buf,
 int off,
 int len)

Specified by:

rawSerialWrite in class com.codename1.impl.KernelHardware

rawPwmOpen

protected int rawPwmOpen(int chip,
 int channel)

Specified by:

rawPwmOpen in class com.codename1.impl.KernelHardware

rawPwmConfigure

protected int rawPwmConfigure(int handle,
 long periodNanos,
 long dutyNanos,
 boolean enabled)

Specified by:

rawPwmConfigure in class com.codename1.impl.KernelHardware

rawCanOpen

protected int rawCanOpen(String iface)

Specified by:

rawCanOpen in class com.codename1.impl.KernelHardware

rawCanSend

protected int rawCanSend(int handle,
 int id,
 boolean extended,
 byte[] data,
 int len)

Specified by:

rawCanSend in class com.codename1.impl.KernelHardware

rawCanReceive

protected int rawCanReceive(int handle,
 int[] idOut,
 byte[] data,
 int timeoutMs)

Specified by:

rawCanReceive in class com.codename1.impl.KernelHardware

rawWatchdogOpen

protected int rawWatchdogOpen(int timeoutSeconds)

Specified by:

rawWatchdogOpen in class com.codename1.impl.KernelHardware

rawWatchdogKick

protected int rawWatchdogKick(int handle)

Specified by:

rawWatchdogKick in class com.codename1.impl.KernelHardware

rawClose

protected void rawClose(int handle,
 boolean disarm)

Specified by:

rawClose in class com.codename1.impl.KernelHardware