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Fix #459 - properly support remote SPI with pigpio

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Sorry! Dave's messing around with the pin implementations again.
Hopefully the last time. The pin_factory is now really a factory object
which can be asked to produce individual pins or pin-based interfaces
like SPI (which can be supported properly via pigpio).
This commit is contained in:
Dave Jones
2016-09-27 00:30:57 +01:00
parent 0ca2586e9e
commit ce6217c14f
34 changed files with 2311 additions and 1456 deletions
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32
gpiozero/exc.py
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@@ -52,6 +52,24 @@ class SPIBadArgs(SPIError, ValueError):
class SPIBadChannel(SPIError, ValueError):
"Error raised when an invalid channel is given to an :class:`AnalogInputDevice`"
class SPIFixedClockMode(SPIError, AttributeError):
"Error raised when the SPI clock mode cannot be changed"
class SPIInvalidClockMode(SPIError, ValueError):
"Error raised when an invalid clock mode is given to an SPI implementation"
class SPIFixedBitOrder(SPIError, AttributeError):
"Error raised when the SPI bit-endianness cannot be changed"
class SPIFixedSelect(SPIError, AttributeError):
"Error raised when the SPI select polarity cannot be changed"
class SPIFixedWordSize(SPIError, AttributeError):
"Error raised when the number of bits per word cannot be changed"
class SPIInvalidWordSize(SPIError, ValueError):
"Error raised when an invalid (out of range) number of bits per word is specified"
class GPIODeviceError(GPIOZeroError):
"Base class for errors specific to the GPIODevice hierarchy"
@@ -62,7 +80,7 @@ class GPIOPinInUse(GPIODeviceError):
"Error raised when attempting to use a pin already in use by another device"
class GPIOPinMissing(GPIODeviceError, ValueError):
"Error raised when a pin number is not specified"
"Error raised when a pin specification is not given"
class InputDeviceError(GPIODeviceError):
"Base class for errors specific to the InputDevice hierarchy"
@@ -100,6 +118,12 @@ class PinFixedPull(PinError, AttributeError):
class PinEdgeDetectUnsupported(PinError, AttributeError):
"Error raised when attempting to use edge detection on unsupported pins"
class PinGPIOUnsupported(PinError, NotImplementedError):
"Error raised when attempting to obtain a GPIO interface on unsupported pins"
class PinSPIUnsupported(PinError, NotImplementedError):
"Error raised when attempting to obtain an SPI interface on unsupported pins"
class PinPWMError(PinError):
"Base class for errors related to PWM implementations"
@@ -118,6 +142,9 @@ class PinMultiplePins(PinError, RuntimeError):
class PinNoPins(PinError, RuntimeError):
"Error raised when no pins support the requested function"
class PinInvalidPin(PinError, ValueError):
"Error raised when an invalid pin specification is provided"
class GPIOZeroWarning(Warning):
"Base class for all warnings in GPIO Zero"
@@ -130,6 +157,9 @@ class SPISoftwareFallback(SPIWarning):
class PinWarning(GPIOZeroWarning):
"Base class for warnings related to pin implementations"
class PinFactoryFallback(PinWarning):
"Warning raised when a default pin factory fails to load and a fallback is tried"
class PinNonPhysical(PinWarning):
"Warning raised when a non-physical pin is specified in a constructor"