import adafruit_platformdetect.constants.boards as ap_board
import adafruit_platformdetect.constants.chips as ap_chip
+# pylint: disable=import-outside-toplevel,too-many-branches,too-many-statements
+# pylint: disable=too-many-arguments,too-many-function-args
+
class I2C(Lockable):
+ """
+ Busio I2C Class for CircuitPython Compatibility. Used
+ for both MicroPython and Linux.
+ """
+
def __init__(self, scl, sda, frequency=400000):
self.init(scl, sda, frequency)
def init(self, scl, sda, frequency):
+ """Initialization"""
self.deinit()
if detector.board.ftdi_ft232h:
- from adafruit_blinka.microcontroller.ft232h.i2c import I2C
+ from adafruit_blinka.microcontroller.ft232h.i2c import I2C as _I2C
- self._i2c = I2C(frequency=frequency)
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.binho_nova:
- from adafruit_blinka.microcontroller.nova.i2c import I2C
+ if detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.i2c import I2C as _I2C
- self._i2c = I2C(frequency=frequency)
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.microchip_mcp2221:
- from adafruit_blinka.microcontroller.mcp2221.i2c import I2C
+ if detector.board.microchip_mcp2221:
+ from adafruit_blinka.microcontroller.mcp2221.i2c import I2C as _I2C
- self._i2c = I2C(frequency=frequency)
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.greatfet_one:
- from adafruit_blinka.microcontroller.nxp_lpc4330.i2c import I2C
+ if detector.board.greatfet_one:
+ from adafruit_blinka.microcontroller.nxp_lpc4330.i2c import I2C as _I2C
- self._i2c = I2C(frequency=frequency)
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.any_embedded_linux:
+ if detector.board.any_embedded_linux:
from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
else:
from machine import I2C as _I2C
self._lock = threading.RLock()
def deinit(self):
+ """Deinitialization"""
try:
del self._i2c
except AttributeError:
self.deinit()
def scan(self):
+ """Scan for attached devices"""
return self._i2c.scan()
def readfrom_into(self, address, buffer, *, start=0, end=None):
+ """Read from a device at specified address into a buffer"""
if start != 0 or end is not None:
if end is None:
end = len(buffer)
return self._i2c.readfrom_into(address, buffer, stop=stop)
def writeto(self, address, buffer, *, start=0, end=None, stop=True):
+ """Write to a device at specified address from a buffer"""
if isinstance(buffer, str):
buffer = bytes([ord(x) for x in buffer])
if start != 0 or end is not None:
if end is None:
return self._i2c.writeto(address, memoryview(buffer)[start:], stop=stop)
- else:
- return self._i2c.writeto(
- address, memoryview(buffer)[start:end], stop=stop
- )
+ return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=stop)
return self._i2c.writeto(address, buffer, stop=stop)
def writeto_then_readfrom(
in_end=None,
stop=False
):
+ """"Write to a device at specified address from a buffer then read
+ from a device at specified address into a buffer
+ """
return self._i2c.writeto_then_readfrom(
address,
buffer_out,
class SPI(Lockable):
+ """
+ Busio SPI Class for CircuitPython Compatibility. Used
+ for both MicroPython and Linux.
+ """
+
def __init__(self, clock, MOSI=None, MISO=None):
self.deinit()
if detector.board.ftdi_ft232h:
self._spi = _SPI()
self._pins = (SCK, MOSI, MISO)
return
- elif detector.board.binho_nova:
+ if detector.board.binho_nova:
from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI
from adafruit_blinka.microcontroller.nova.pin import SCK, MOSI, MISO
self._spi = _SPI(clock)
self._pins = (SCK, MOSI, MISO)
return
- elif detector.board.greatfet_one:
+ if detector.board.greatfet_one:
from adafruit_blinka.microcontroller.nxp_lpc4330.spi import SPI as _SPI
from adafruit_blinka.microcontroller.nxp_lpc4330.pin import SCK, MOSI, MISO
self._spi = _SPI()
self._pins = (SCK, MOSI, MISO)
return
- elif detector.board.any_embedded_linux:
+ if detector.board.any_embedded_linux:
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
else:
from machine import SPI as _SPI
for portId, portSck, portMosi, portMiso in spiPorts:
if (
(clock == portSck)
- and (MOSI == portMosi or MOSI == None) # Clock is required!
- and (MISO == portMiso or MISO == None) # But can do with just output
+ and MOSI in (portMosi, None) # Clock is required!
+ and MISO in (portMiso, None) # But can do with just output
): # Or just input
self._spi = _SPI(portId)
self._pins = (portSck, portMosi, portMiso)
)
def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
+ """Update the configuration"""
if detector.board.any_raspberry_pi or detector.board.any_raspberry_pi_40_pin:
from adafruit_blinka.microcontroller.bcm283x.pin import Pin
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
elif detector.board.greatfet_one:
from adafruit_blinka.microcontroller.nxp_lpc4330.spi import SPI as _SPI
from adafruit_blinka.microcontroller.nxp_lpc4330.pin import Pin
- elif (
- board_id == ap_board.PINE64
- or board_id == ap_board.PINEBOOK
- or board_id == ap_board.PINEPHONE
- ):
+ elif board_id in (ap_board.PINE64, ap_board.PINEBOOK, ap_board.PINEPHONE):
from adafruit_blinka.microcontroller.allwinner.a64.pin import Pin
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
elif board_id == ap_board.CLOCKWORK_CPI3:
raise RuntimeError("First call try_lock()")
def deinit(self):
+ """Deinitialization"""
self._spi = None
self._pinIds = None
@property
def frequency(self):
+ """Return the baud rate if implemented"""
try:
return self._spi.frequency
except AttributeError:
)
def write(self, buf, start=0, end=None):
+ """Write to the SPI device"""
return self._spi.write(buf, start, end)
def readinto(self, buf, start=0, end=None, write_value=0):
+ """Read from the SPI device into a buffer"""
return self._spi.readinto(buf, start, end, write_value=write_value)
def write_readinto(
self, buffer_out, buffer_in, out_start=0, out_end=None, in_start=0, in_end=None
):
+ """Write to the SPI device and read from the SPI device into a buffer"""
return self._spi.write_readinto(
buffer_out, buffer_in, out_start, out_end, in_start, in_end
)
class UART(Lockable):
+ """
+ Busio UART Class for CircuitPython Compatibility. Used
+ for MicroPython and a few other non-Linux boards.
+ """
+
class Parity(Enum):
- pass
+ """Parity Enumeration"""
+
+ pass # pylint: disable=unnecessary-pass
Parity.ODD = Parity()
Parity.EVEN = Parity()
raise RuntimeError(
"busio.UART not supported on this platform. Please use pyserial instead."
)
- elif detector.board.binho_nova:
+ if detector.board.binho_nova:
from adafruit_blinka.microcontroller.nova.uart import UART as _UART
elif detector.board.greatfet_one:
from adafruit_blinka.microcontroller.nxp_lpc4330.uart import UART as _UART
)
def deinit(self):
+ """Deinitialization"""
if detector.board.binho_nova:
self._uart.deinit()
self._uart = None
def read(self, nbytes=None):
+ """Read from the UART"""
return self._uart.read(nbytes)
def readinto(self, buf, nbytes=None):
+ """Read from the UART into a buffer"""
return self._uart.readinto(buf, nbytes)
def readline(self):
+ """Read a line of characters up to a newline charater from the UART"""
return self._uart.readline()
def write(self, buf):
+ """Write to the UART from a buffer"""
return self._uart.write(buf)
projects / Adafruit_Blinka-hackapet.git / blobdiff