* Author(s): cefn
"""
+import threading
+
from adafruit_blinka import Enum, Lockable, agnostic
-from adafruit_blinka.agnostic import board as boardId
+from adafruit_blinka.agnostic import board_id, detector
+import adafruit_platformdetect.board as ap_board
class I2C(Lockable):
def __init__(self, scl, sda, frequency=400000):
def init(self, scl, sda, frequency):
self.deinit()
- if boardId == "raspi_3" or boardId == "raspi_2":
- from adafruit_blinka.microcontroller.raspi_23.i2c import I2C as _I2C
+ if detector.board.ftdi_ft232h:
+ from adafruit_blinka.microcontroller.ft232h.i2c import I2C
+ self._i2c = I2C(frequency=frequency)
+ return
+ elif detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.i2c import I2C
+ self._i2c = I2C(frequency=frequency)
+ return
+ elif detector.board.microchip_mcp2221:
+ from adafruit_blinka.microcontroller.mcp2221.i2c import I2C
+ self._i2c = I2C(frequency=frequency)
+ return
+ elif detector.board.any_embedded_linux:
+ from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
else:
from machine import I2C as _I2C
from microcontroller.pin import i2cPorts
for portId, portScl, portSda in i2cPorts:
- if scl == portScl and sda == portSda:
- self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency)
- break
+ try:
+ if scl == portScl and sda == portSda:
+ self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency)
+ break
+ except RuntimeError:
+ pass
else:
- raise NotImplementedError("No Hardware I2C on (scl,sda)={}\nValid UART ports".format(
- (scl, sda), i2cPorts))
+ raise ValueError(
+ "No Hardware I2C on (scl,sda)={}\nValid I2C ports: {}".format((scl, sda), i2cPorts)
+ )
+
+ self._lock = threading.RLock()
def deinit(self):
try:
pass
def __enter__(self):
+ self._lock.acquire()
return self
def __exit__(self, exc_type, exc_value, traceback):
+ self._lock.release()
self.deinit()
def scan(self):
return self._i2c.scan()
- def readfrom_into(self, address, buffer, start=0, end=None):
+ def readfrom_into(self, address, buffer, *, start=0, end=None):
if start is not 0 or end is not None:
if end is None:
end = len(buffer)
buffer = memoryview(buffer)[start:end]
stop = True # remove for efficiency later
- return self._i2c.readfrom_into(address, buffer, stop)
+ return self._i2c.readfrom_into(address, buffer, stop=stop)
- def writeto(self, address, buffer, start=0, end=None, stop=True):
+ def writeto(self, address, buffer, *, start=0, end=None, stop=True):
+ if isinstance(buffer, str):
+ buffer = bytes([ord(x) for x in buffer])
if start is not 0 or end is not None:
if end is None:
- return self._i2c.writeto(address, memoryview(buffer)[start:], stop)
+ return self._i2c.writeto(address, memoryview(buffer)[start:], stop=stop)
else:
- return self._i2c.writeto(address, memoryview(buffer)[start:end], stop)
- return self._i2c.writeto(address, buffer, stop)
+ return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=stop)
+ return self._i2c.writeto(address, buffer, stop=stop)
+ def writeto_then_readfrom(self, address, buffer_out, buffer_in, *, out_start=0, out_end=None, in_start=0, in_end=None, stop=False):
+ return self._i2c.writeto_then_readfrom(address, buffer_out, buffer_in,
+ out_start=out_start, out_end=out_end,
+ in_start=in_start, in_end=in_end, stop=stop)
class SPI(Lockable):
def __init__(self, clock, MOSI=None, MISO=None):
self.deinit()
- if boardId == "raspi_3" or boardId == "raspi_2":
- from adafruit_blinka.microcontroller.raspi_23.spi import SPI as _SPI
+ if detector.board.ftdi_ft232h:
+ from adafruit_blinka.microcontroller.ft232h.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.ft232h.pin import SCK, MOSI, MISO
+ self._spi = _SPI()
+ self._pins = (SCK, MOSI, MISO)
+ return
+ elif 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.any_embedded_linux:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
else:
from machine import SPI as _SPI
from microcontroller.pin import spiPorts
for portId, portSck, portMosi, portMiso in spiPorts:
- if clock == portSck and MOSI == portMosi and MISO == portMiso:
+ if ((clock == portSck) and # Clock is required!
+ (MOSI == portMosi or MOSI == None) and # But can do with just output
+ (MISO == portMiso or MISO == None)): # Or just input
self._spi = _SPI(portId)
self._pins = (portSck, portMosi, portMiso)
break
else:
- raise NotImplementedError(
+ raise ValueError(
"No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".
format((clock, MOSI, MISO), spiPorts))
def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
- if boardId == "raspi_3" or boardId == "raspi_2":
- from adafruit_blinka.microcontroller.raspi_23.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.raspi_23.pin import Pin
+ 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.any_beaglebone:
+ from adafruit_blinka.microcontroller.am335x.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.ORANGE_PI_PC or board_id == ap_board.ORANGE_PI_R1 or board_id == ap_board.ORANGE_PI_ZERO:
+ from adafruit_blinka.microcontroller.allwinner.h3.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.GIANT_BOARD:
+ from adafruit_blinka.microcontroller.sama5.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.CORAL_EDGE_TPU_DEV:
+ from adafruit_blinka.microcontroller.nxp_imx8m.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.ODROID_C2:
+ from adafruit_blinka.microcontroller.amlogic.s905.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.DRAGONBOARD_410C:
+ from adafruit_blinka.microcontroller.snapdragon.apq8016.pin import Pin
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif board_id == ap_board.JETSON_NANO:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.tegra.t210.pin import Pin
+ elif board_id == ap_board.JETSON_TX1:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.tegra.t210.pin import Pin
+ elif board_id == ap_board.JETSON_TX2:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.tegra.t186.pin import Pin
+ elif board_id == ap_board.JETSON_XAVIER:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.tegra.t194.pin import Pin
+ elif detector.board.ftdi_ft232h:
+ from adafruit_blinka.microcontroller.ft232h.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.ft232h.pin import Pin
+ elif detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.nova.pin import Pin
else:
from machine import SPI as _SPI
from machine import Pin
self._spi = None
self._pinIds = None
- def write(self, buf):
- return self._spi.write(buf)
+ @property
+ def frequency(self):
+ try:
+ return self._spi.frequency
+ except AttributeError:
+ raise NotImplementedError("Frequency attribute not implemented for this platform")
+
+ def write(self, buf, start=0, end=None):
+ return self._spi.write(buf, start, end)
- def readinto(self, buf):
- return self.readinto(buf)
+ def readinto(self, buf, start=0, end=None, write_value=0):
+ return self._spi.readinto(buf, start, end, write_value=write_value)
- def write_readinto(self, buffer_out, buffer_in):
- return self.write_readinto(buffer_out, buffer_in)
+ def write_readinto(self, buffer_out, buffer_in, out_start=0, out_end=None, in_start=0, in_end=None):
+ return self._spi.write_readinto(buffer_out, buffer_in, out_start, out_end, in_start, in_end)
class UART(Lockable):
timeout=1000,
receiver_buffer_size=64,
flow=None):
- from machine import UART as _UART
- from microcontroller.pin import uartPorts
+ if detector.board.any_embedded_linux:
+ raise RuntimeError('busio.UART not supported on this platform. Please use pyserial instead.')
+ elif detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.uart import UART as _UART
+ else:
+ from machine import UART as _UART
+
+ if detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.pin import uartPorts
+ else:
+ from microcontroller.pin import uartPorts
self.baudrate = baudrate
if flow is not None: # default 0
raise NotImplementedError(
"Parameter '{}' unsupported on {}".format(
- "flow", agnostic.board))
+ "flow", agnostic.board_id))
# translate parity flag for Micropython
if parity is UART.Parity.ODD:
)
break
else:
- raise NotImplementedError(
- "No Hardware UART on (tx,rx)={}\nValid UART ports".format(
- (tx, rx), uartPorts))
+ raise ValueError(
+ "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
+ )
def deinit(self):
+ if detector.board.binho_nova:
+ self._uart.deinit()
self._uart = None
def read(self, nbytes=None):
projects / Adafruit_Blinka-hackapet.git / blobdiff