X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/06f3dea48645ab3963bb400c6057a1049bb2c75e..046217cbbf14ba5a595d9423f58a7961f0ab51cd:/src/busio.py diff --git a/src/busio.py b/src/busio.py old mode 100755 new mode 100644 index b02311e..234bc4f --- a/src/busio.py +++ b/src/busio.py @@ -1,3 +1,6 @@ +# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries +# +# SPDX-License-Identifier: MIT """ `busio` - Bus protocol support like I2C and SPI ================================================= @@ -6,25 +9,27 @@ See `CircuitPython:busio` in CircuitPython for more details. * Author(s): cefn """ - try: import threading except ImportError: threading = None +# pylint: disable=unused-import import adafruit_platformdetect.constants.boards as ap_board import adafruit_platformdetect.constants.chips as ap_chip from adafruit_blinka import Enum, Lockable, agnostic from adafruit_blinka.agnostic import board_id, detector # pylint: disable=import-outside-toplevel,too-many-branches,too-many-statements -# pylint: disable=too-many-arguments,too-many-function-args,consider-using-with +# pylint: disable=too-many-arguments,too-many-function-args,too-many-return-statements class I2C(Lockable): """ Busio I2C Class for CircuitPython Compatibility. Used for both MicroPython and Linux. + + NOTE: Frequency has no effect on Linux systems. The argument is only there for compatibility. """ def __init__(self, scl, sda, frequency=100000): @@ -34,7 +39,7 @@ class I2C(Lockable): """Initialization""" self.deinit() if detector.board.ftdi_ft232h: - from adafruit_blinka.microcontroller.ft232h.i2c import I2C as _I2C + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C self._i2c = _I2C(frequency=frequency) return @@ -48,13 +53,83 @@ class I2C(Lockable): self._i2c = _I2C(frequency=frequency) return + + if detector.board.OS_AGNOSTIC_BOARD: + from adafruit_blinka.microcontroller.generic_agnostic_board.i2c import ( + I2C as _I2C, + ) + + self._i2c = _I2C(frequency=frequency) + return + if detector.board.greatfet_one: from adafruit_blinka.microcontroller.nxp_lpc4330.i2c import I2C as _I2C self._i2c = _I2C(frequency=frequency) return if detector.board.pico_u2if: - from adafruit_blinka.microcontroller.pico_u2if.i2c import I2C as _I2C + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_Pico as _I2C + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.feather_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_Feather as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.feather_can_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_Feather_CAN as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.feather_epd_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_Feather_EPD as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.feather_rfm_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_Feather_RFM as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.qtpy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_QTPY as _I2C + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.itsybitsy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_ItsyBitsy as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.macropad_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_MacroPad as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.qt2040_trinkey_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_QT2040_Trinkey as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.board.kb2040_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_KB2040 as _I2C, + ) self._i2c = _I2C(scl, sda, frequency=frequency) return @@ -63,8 +138,19 @@ class I2C(Lockable): self._i2c = _I2C(scl, sda, frequency=frequency) return + if detector.board.any_siemens_iot2000: + from adafruit_blinka.microcontroller.am65xx.i2c import I2C as _I2C + + self._i2c = _I2C(frequency=frequency) + return + if detector.board.any_embedded_linux: from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C + + if frequency == 100000: + frequency = None # Set to None if default to avoid triggering warning + elif detector.board.ftdi_ft2232h: + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C else: from adafruit_blinka.microcontroller.generic_micropython.i2c import ( I2C as _I2C, @@ -116,18 +202,17 @@ class I2C(Lockable): 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=stop) + return self._i2c.readfrom_into(address, buffer, stop=True) - def writeto(self, address, buffer, *, start=0, end=None, stop=True): + def writeto(self, address, buffer, *, start=0, end=None): """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) - return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=stop) - return self._i2c.writeto(address, buffer, stop=stop) + return self._i2c.writeto(address, memoryview(buffer)[start:], stop=True) + return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=True) + return self._i2c.writeto(address, buffer, stop=True) def writeto_then_readfrom( self, @@ -139,7 +224,7 @@ class I2C(Lockable): out_end=None, in_start=0, in_end=None, - stop=False + stop=False, ): """ "Write to a device at specified address from a buffer then read from a device at specified address into a buffer @@ -165,8 +250,12 @@ class SPI(Lockable): def __init__(self, clock, MOSI=None, MISO=None): self.deinit() 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 + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import SPI as _SPI + from adafruit_blinka.microcontroller.ftdi_mpsse.ft232h.pin import ( + SCK, + MOSI, + MISO, + ) self._spi = _SPI() self._pins = (SCK, MOSI, MISO) @@ -186,7 +275,69 @@ class SPI(Lockable): self._pins = (SCK, MOSI, MISO) return if detector.board.pico_u2if: - from adafruit_blinka.microcontroller.pico_u2if.spi import SPI as _SPI + from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Pico as _SPI + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.feather_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.feather_can_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_CAN as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.feather_epd_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_EPD as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.feather_rfm_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_RFM as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.itsybitsy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_ItsyBitsy as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.macropad_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_MacroPad as _SPI, + ) + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.qtpy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return + if detector.board.kb2040_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_KB2040 as _SPI, + ) self._spi = _SPI(clock) # this is really all that's needed self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock @@ -197,8 +348,20 @@ class SPI(Lockable): self._spi = _SPI(clock, MOSI, MISO) # Pins configured on instantiation self._pins = (clock, clock, clock) # These don't matter, they're discarded return + if detector.board.any_siemens_iot2000: + from adafruit_blinka.microcontroller.am65xx.spi import SPI as _SPI + + self._spi = _SPI(clock) # this is really all that's needed + self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock + return if detector.board.any_embedded_linux: from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI + elif detector.board.ftdi_ft2232h: + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import SPI as _SPI + elif detector.board.OS_AGNOSTIC_BOARD: + from adafruit_blinka.microcontroller.generic_agnostic_board.spi import ( + SPI as _SPI, + ) else: from adafruit_blinka.microcontroller.generic_micropython.spi import ( SPI as _SPI, @@ -223,71 +386,65 @@ class SPI(Lockable): 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.generic_linux.spi import SPI as _SPI - elif detector.board.BEAGLEBONE_AI: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.any_beaglebone: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.any_orange_pi: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.any_nanopi and detector.chip.id == ap_chip.SUN8I: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.GIANT_BOARD: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.CORAL_EDGE_TPU_DEV: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.CORAL_EDGE_TPU_DEV_MINI: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ODROID_C2: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ODROID_C4: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ODROID_XU4: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.DRAGONBOARD_410C: - 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 - elif board_id == ap_board.JETSON_TX1: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.JETSON_TX2: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.JETSON_XAVIER: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.JETSON_NX: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.ROCK_PI_S: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.ROCK_PI_4: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.SIFIVE_UNLEASHED: + if detector.board.any_nanopi and detector.chip.id == ap_chip.SUN8I: from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI elif detector.board.ftdi_ft232h: - from adafruit_blinka.microcontroller.ft232h.spi import SPI as _SPI + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import ( + SPI as _SPI, + ) + elif detector.board.ftdi_ft2232h: + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import ( + SPI as _SPI, + ) elif detector.board.binho_nova: from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI elif detector.board.greatfet_one: from adafruit_blinka.microcontroller.nxp_lpc4330.spi import SPI as _SPI - elif board_id in ( - ap_board.PINE64, - ap_board.PINEBOOK, - ap_board.PINEPHONE, - ap_board.SOPINE, - ): - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.PINEH64: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.CLOCKWORK_CPI3: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ONION_OMEGA2: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI elif detector.board.any_lubancat and detector.chip.id == ap_chip.IMX6ULL: from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI elif detector.board.pico_u2if: - from adafruit_blinka.microcontroller.pico_u2if.spi import SPI as _SPI + from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Pico as _SPI + elif detector.board.feather_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather as _SPI, + ) + elif detector.board.feather_can_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_CAN as _SPI, + ) + elif detector.board.feather_epd_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_EPD as _SPI, + ) + elif detector.board.feather_rfm_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Feather_RFM as _SPI, + ) + elif detector.board.itsybitsy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_ItsyBitsy as _SPI, + ) + elif detector.board.macropad_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_MacroPad as _SPI, + ) + elif detector.board.kb2040_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_KB2040 as _SPI, + ) + elif detector.board.qtpy_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI elif detector.chip.id == ap_chip.RP2040: from adafruit_blinka.microcontroller.rp2040.spi import SPI as _SPI + elif detector.board.any_siemens_iot2000: + from adafruit_blinka.microcontroller.am65xx.spi import SPI as _SPI + from adafruit_blinka.microcontroller.am65xx.pin import Pin + elif detector.board.any_embedded_linux: + from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI + elif detector.board.OS_AGNOSTIC_BOARD: + from adafruit_blinka.microcontroller.generic_agnostic_board.spi import ( + SPI as _SPI, + ) else: from adafruit_blinka.microcontroller.generic_micropython.spi import ( SPI as _SPI, @@ -315,10 +472,10 @@ class SPI(Lockable): """Return the baud rate if implemented""" try: return self._spi.frequency - except AttributeError: + except AttributeError as error: raise NotImplementedError( "Frequency attribute not implemented for this platform" - ) from AttributeError + ) from error def write(self, buf, start=0, end=None): """Write to the SPI device""" @@ -440,42 +597,9 @@ class UART(Lockable): return self._uart.readinto(buf, nbytes) def readline(self): - """Read a line of characters up to a newline charater from the UART""" + """Read a line of characters up to a newline character from the UART""" return self._uart.readline() def write(self, buf): """Write to the UART from a buffer""" return self._uart.write(buf) - - -class OneWire: - """ - Stub class for OneWire, which is currently not implemented - """ - - def __init__(self, pin): - raise NotImplementedError("OneWire has not been implemented") - - def deinit(self): - """ - Deinitialize the OneWire bus and release any hardware resources for reuse. - """ - raise NotImplementedError("OneWire has not been implemented") - - def reset(self): - """ - Reset the OneWire bus and read presence - """ - raise NotImplementedError("OneWire has not been implemented") - - def read_bit(self): - """ - Read in a bit - """ - raise NotImplementedError("OneWire has not been implemented") - - def write_bit(self, value): - """ - Write out a bit based on value. - """ - raise NotImplementedError("OneWire has not been implemented")