X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/5189fd3e50e82697699bcd138e2116ced10eb5df..HEAD:/src/busio.py diff --git a/src/busio.py b/src/busio.py old mode 100755 new mode 100644 index 279bd46..1dd9338 --- 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 ================================================= @@ -6,35 +9,37 @@ 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 +# 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=400000): + def __init__(self, scl, sda, frequency=100000): 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 as _I2C + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C self._i2c = _I2C(frequency=frequency) return @@ -48,29 +53,132 @@ 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.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 + if detector.board.radxa_x4_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.i2c import ( + I2C_Radxa_X4 as _I2C, + ) + + self._i2c = _I2C(scl, sda, frequency=frequency) + return + if detector.chip.id == ap_chip.RP2040: + from adafruit_blinka.microcontroller.rp2040.i2c import I2C as _I2C + + 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 + elif detector.board.ftdi_ft4232h: + from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C else: - from machine import I2C as _I2C + from adafruit_blinka.microcontroller.generic_micropython.i2c import ( + I2C as _I2C, + ) from microcontroller.pin import i2cPorts for portId, portScl, portSda in i2cPorts: try: + # pylint: disable=unexpected-keyword-arg if scl == portScl and sda == portSda: self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency) break + # pylint: enable=unexpected-keyword-arg except RuntimeError: pass else: raise ValueError( - "No Hardware I2C on (scl,sda)={}\nValid I2C ports: {}".format( - (scl, sda), i2cPorts - ) + f"No Hardware I2C on (scl,sda)={(scl, sda)}\n" + f"Valid I2C ports: {i2cPorts}.\nMake sure I2C is enabled." ) if threading is not None: self._lock = threading.RLock() @@ -102,18 +210,17 @@ 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, @@ -125,9 +232,9 @@ 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 + """ "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( @@ -151,8 +258,12 @@ 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) @@ -171,10 +282,108 @@ class SPI(Lockable): self._spi = _SPI() self._pins = (SCK, MOSI, MISO) return + if detector.board.pico_u2if: + 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 + return + if detector.board.radxa_x4_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Radxa_X4 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.chip.id == ap_chip.RP2040: + from adafruit_blinka.microcontroller.rp2040.spi import SPI as _SPI + + 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.ftdi_ft4232h: + 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 machine import SPI as _SPI + from adafruit_blinka.microcontroller.generic_micropython.spi import ( + SPI as _SPI, + ) from microcontroller.pin import spiPorts for portId, portSck, portMosi, portMiso in spiPorts: @@ -188,82 +397,83 @@ class SPI(Lockable): break else: raise ValueError( - "No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".format( - (clock, MOSI, MISO), spiPorts - ) + f"No Hardware SPI on (SCLK, MOSI, MISO)={(clock, MOSI, MISO)}\n" + f"Valid SPI ports: {spiPorts}.\nMake sure SPI is enabled." ) 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.any_beaglebone: - from adafruit_blinka.microcontroller.am335x.pin import Pin - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif detector.board.any_orange_pi and detector.chip.id == ap_chip.SUN8I: - 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.ODROID_C4: - from adafruit_blinka.microcontroller.amlogic.s905x3.pin import Pin - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ODROID_XU4: - from adafruit_blinka.microcontroller.samsung.exynos5422.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: + if detector.board.any_nanopi and detector.chip.id == ap_chip.SUN8I: 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 board_id == ap_board.JETSON_NX: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - from adafruit_blinka.microcontroller.tegra.t194.pin import Pin - elif detector.board.ROCK_PI_S: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - from adafruit_blinka.microcontroller.rockchip.rk3308.pin import Pin - elif detector.board.SIFIVE_UNLEASHED: - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - from adafruit_blinka.microcontroller.hfu540.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 + 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.ftdi_ft4232h: + 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 - from adafruit_blinka.microcontroller.nova.pin import Pin 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 in (ap_board.PINE64, ap_board.PINEBOOK, ap_board.PINEPHONE): - from adafruit_blinka.microcontroller.allwinner.a64.pin import Pin + elif detector.board.any_lubancat and detector.chip.id == ap_chip.IMX6ULL: from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.CLOCKWORK_CPI3: - from adafruit_blinka.microcontroller.allwinner.a33.pin import Pin - from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI - elif board_id == ap_board.ONION_OMEGA2: - from adafruit_blinka.microcontroller.mips24kec.pin import Pin + elif detector.board.pico_u2if: + 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.board.radxa_x4_u2if: + from adafruit_blinka.microcontroller.rp2040_u2if.spi import ( + SPI_Radxa_X4 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 machine import SPI as _SPI - from machine import Pin + from adafruit_blinka.microcontroller.generic_micropython.spi import ( + SPI as _SPI, + ) if self._locked: # TODO check if #init ignores MOSI=None rather than unsetting, to save _pinIds attribute @@ -273,9 +483,6 @@ class SPI(Lockable): phase=phase, bits=bits, firstbit=_SPI.MSB, - sck=Pin(self._pins[0].id), - mosi=Pin(self._pins[1].id), - miso=Pin(self._pins[2].id), ) else: raise RuntimeError("First call try_lock()") @@ -290,10 +497,10 @@ 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 error def write(self, buf, start=0, end=None): """Write to the SPI device""" @@ -346,13 +553,12 @@ class UART(Lockable): 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 + elif detector.chip.id == ap_chip.RP2040: + from adafruit_blinka.microcontroller.rp2040.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 + from microcontroller.pin import uartPorts self.baudrate = baudrate @@ -371,25 +577,35 @@ class UART(Lockable): else: raise ValueError("Invalid parity") - # check tx and rx have hardware support - for portId, portTx, portRx in uartPorts: # - if portTx == tx and portRx == rx: - self._uart = _UART( - portId, - baudrate, - bits=bits, - parity=parity, - stop=stop, - timeout=timeout, - read_buf_len=receiver_buffer_size, - ) - break + if detector.chip.id == ap_chip.RP2040: + self._uart = _UART( + tx, + rx, + baudrate=baudrate, + bits=bits, + parity=parity, + stop=stop, + ) else: - raise ValueError( - "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format( - (tx, rx), uartPorts + # check tx and rx have hardware support + for portId, portTx, portRx in uartPorts: # + if portTx == tx and portRx == rx: + self._uart = _UART( + portId, + baudrate, + bits=bits, + parity=parity, + stop=stop, + timeout=timeout, + read_buf_len=receiver_buffer_size, + ) + break + else: + raise ValueError( + "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format( + (tx, rx), uartPorts + ) ) - ) def deinit(self): """Deinitialization""" @@ -406,7 +622,7 @@ 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):