Add support for FT2232H "microcontroller"

[hackapet/Adafruit_Blinka.git] / src / busio.py

diff --git a/src/busio.py b/src/busio.py
index e95a44e2adde156e4590654f767091b97c49fa52..1ad6e41991abc53b396e61b2af0a1215206b947d 100755 (executable)
--- a/src/busio.py
+++ b/src/busio.py
@@ -9,35 +9,51 @@ See `CircuitPython:busio` in CircuitPython for more details.
 
 import threading
 
 
 import threading
 

-from adafruit_blinka import Enum, Lockable, agnostic
-from adafruit_blinka.agnostic import board_id, detector

 import adafruit_platformdetect.constants.boards as ap_board
 import adafruit_platformdetect.constants.chips as ap_chip
 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

 
 
 class I2C(Lockable):
 
 
 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):
     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:
         self.deinit()
         if detector.board.ftdi_ft232h:

-            from adafruit_blinka.microcontroller.ft232h.i2c import I2C
+            from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C

 
 

-            self._i2c = I2C(frequency=frequency)
+            self._i2c = _I2C(frequency=frequency)

             return
             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)
+            return
+        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
             return

-        elif detector.board.microchip_mcp2221:
-            from adafruit_blinka.microcontroller.mcp2221.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
             return

-        elif detector.board.any_embedded_linux:
+        if detector.board.any_embedded_linux:

             from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
             from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C

+        elif detector.board.ftdi_ft2232h:
+            from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C

         else:
             from machine import I2C as _I2C
         from microcontroller.pin import i2cPorts
         else:
             from machine import I2C as _I2C
         from microcontroller.pin import i2cPorts


@@ -59,6 +75,7 @@ class I2C(Lockable):
         self._lock = threading.RLock()
 
     def deinit(self):
         self._lock = threading.RLock()
 
     def deinit(self):

+        """Deinitialization"""

         try:
             del self._i2c
         except AttributeError:
         try:
             del self._i2c
         except AttributeError:


@@ -73,9 +90,11 @@ class I2C(Lockable):
         self.deinit()
 
     def scan(self):
         self.deinit()
 
     def scan(self):

+        """Scan for attached devices"""

         return self._i2c.scan()
 
     def readfrom_into(self, address, buffer, *, start=0, end=None):
         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)
         if start != 0 or end is not None:
             if end is None:
                 end = len(buffer)


@@ -84,15 +103,13 @@ class I2C(Lockable):
         return self._i2c.readfrom_into(address, buffer, stop=stop)
 
     def writeto(self, address, buffer, *, start=0, end=None, stop=True):
         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)
         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(
         return self._i2c.writeto(address, buffer, stop=stop)
 
     def writeto_then_readfrom(


@@ -107,6 +124,9 @@ class I2C(Lockable):
         in_end=None,
         stop=False
     ):
         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,
         return self._i2c.writeto_then_readfrom(
             address,
             buffer_out,


@@ -120,24 +140,38 @@ class I2C(Lockable):
 
 
 class SPI(Lockable):
 
 
 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:
     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)
             return
 
             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
             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:
+        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
+        if detector.board.any_embedded_linux:

             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
             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

         else:
             from machine import SPI as _SPI
         from microcontroller.pin import spiPorts
         else:
             from machine import SPI as _SPI
         from microcontroller.pin import spiPorts


@@ -145,8 +179,8 @@ class SPI(Lockable):
         for portId, portSck, portMosi, portMiso in spiPorts:
             if (
                 (clock == portSck)
         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)
             ):  # Or just input
                 self._spi = _SPI(portId)
                 self._pins = (portSck, portMosi, portMiso)


@@ -159,6 +193,7 @@ class SPI(Lockable):
             )
 
     def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
             )
 
     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
         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


@@ -180,6 +215,9 @@ class SPI(Lockable):
         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_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.DRAGONBOARD_410C:
             from adafruit_blinka.microcontroller.snapdragon.apq8016.pin import Pin
             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI


@@ -198,20 +236,25 @@ class SPI(Lockable):
         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 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:
         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.ft232h.spi import SPI as _SPI
+            from adafruit_blinka.microcontroller.ftdi_mpsse.ft232h.pin import Pin
+        elif detector.board.ftdi_ft2232h:
+            from adafruit_blinka.microcontroller.ftdi_mpsse.ft2232h.spi import SPI as _SPI
+            from adafruit_blinka.microcontroller.ftdi_mpsse.ft2232h.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
         elif detector.board.binho_nova:
             from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI
             from adafruit_blinka.microcontroller.nova.pin import Pin

-        elif (
-            board_id == ap_board.PINE64
-            or board_id == ap_board.PINEBOOK
-            or board_id == ap_board.PINEPHONE
-        ):
+        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
             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
         elif board_id == ap_board.CLOCKWORK_CPI3:
             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:


@@ -240,11 +283,13 @@ class SPI(Lockable):
             raise RuntimeError("First call try_lock()")
 
     def deinit(self):
             raise RuntimeError("First call try_lock()")
 
     def deinit(self):

+        """Deinitialization"""

         self._spi = None
         self._pinIds = None
 
     @property
     def frequency(self):
         self._spi = None
         self._pinIds = None
 
     @property
     def frequency(self):

+        """Return the baud rate if implemented"""

         try:
             return self._spi.frequency
         except AttributeError:
         try:
             return self._spi.frequency
         except AttributeError:


@@ -253,22 +298,32 @@ class SPI(Lockable):
             )
 
     def write(self, buf, start=0, end=None):
             )
 
     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):
         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
     ):
         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):
         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):
     class Parity(Enum):

-        pass
+        """Parity Enumeration"""
+
+        pass  # pylint: disable=unnecessary-pass

 
     Parity.ODD = Parity()
     Parity.EVEN = Parity()
 
     Parity.ODD = Parity()
     Parity.EVEN = Parity()


@@ -289,8 +344,10 @@ class UART(Lockable):
             raise RuntimeError(
                 "busio.UART not supported on this platform. Please use pyserial instead."
             )
             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
             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

         else:
             from machine import UART as _UART
 
         else:
             from machine import UART as _UART
 


@@ -337,18 +394,23 @@ class UART(Lockable):
             )
 
     def deinit(self):
             )
 
     def deinit(self):

+        """Deinitialization"""

         if detector.board.binho_nova:
             self._uart.deinit()
         self._uart = None
 
     def read(self, nbytes=None):
         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):
         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):
         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):
         return self._uart.readline()
 
     def write(self, buf):

+        """Write to the UART from a buffer"""

         return self._uart.write(buf)
         return self._uart.write(buf)