latest platformdetect api; clean up some pylint complaints & minor bugs

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

diff --git a/src/busio.py b/src/busio.py
index 069e9bec91134024ba8347a9098bb6d2905b5962..d3bdbf55b9c1542271f3e63e2b6be281d3a58084 100755 (executable)
--- a/src/busio.py
+++ b/src/busio.py
@@ -9,6 +9,15 @@ See `CircuitPython:busio` in CircuitPython for more details.
 
 from adafruit_blinka import Enum, Lockable, agnostic
 from adafruit_blinka.agnostic import board_id
+import adafruit_platformdetect.board as ap_board
+
+EMBEDDED_LINUX_BOARDS = (
+    ap_board.RASPBERRY_PI_2B,
+    ap_board.RASPBERRY_PI_3B,
+    ap_board.RASPBERRY_PI_3B_PLUS,
+    ap_board.BEAGLEBONE_BLACK,
+    ap_board.ORANGEPI_PC,
+)
 
 class I2C(Lockable):
     def __init__(self, scl, sda, frequency=400000):
@@ -16,8 +25,8 @@ class I2C(Lockable):
 
     def init(self, scl, sda, frequency):
         self.deinit()
-        if board_id == "raspi_3" or board_id == "raspi_2":
-            from adafruit_blinka.microcontroller.raspi_23.i2c import I2C as _I2C
+        if board_id in EMBEDDED_LINUX_BOARDS:
+            from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
         else:
             from machine import I2C as _I2C
         from microcontroller.pin import i2cPorts
@@ -26,8 +35,9 @@ class I2C(Lockable):
                 self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency)
                 break
         else:
-            raise NotImplementedError("No Hardware I2C on (scl,sda)={}\nValid UART ports".format(
-        (scl, sda), i2cPorts))
+            raise NotImplementedError(
+                "No Hardware I2C on (scl,sda)={}\nValid UART ports: {}".format((scl, sda), i2cPorts)
+            )
 
     def deinit(self):
         try:
@@ -44,30 +54,34 @@ class I2C(Lockable):
     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 board_id == "raspi_3" or board_id == "raspi_2":
-            from adafruit_blinka.microcontroller.raspi_23.spi import SPI as _SPI
+        if board_id in EMBEDDED_LINUX_BOARDS:
+            from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
         else:
             from machine import SPI as _SPI
         from microcontroller.pin import spiPorts
@@ -84,9 +98,15 @@ class SPI(Lockable):
                 format((clock, MOSI, MISO), spiPorts))
 
     def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
-        if board_id == "raspi_3" or board_id == "raspi_2":
-            from adafruit_blinka.microcontroller.raspi_23.spi import SPI as _SPI
-            from adafruit_blinka.microcontroller.raspi_23.pin import Pin
+        if board_id in ap_board.ANY_RASPBERRY_PI_2_OR_3:
+            from adafruit_blinka.microcontroller.bcm283x.pin import Pin
+            from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+        elif board_id == ap_board.BEAGLEBONE_BLACK:
+            from adafruit_blinka.microcontroller.am335x.pin import Pin
+            from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+        elif board_id == ap_board.ORANGEPI_PC:
+            from adafruit_blinka.microcontroller.allwinner_h3.pin import Pin
+            from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
         else:
             from machine import SPI as _SPI
             from machine import Pin
@@ -145,7 +165,7 @@ class UART(Lockable):
         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:
@@ -172,8 +192,8 @@ class UART(Lockable):
                 break
         else:
             raise NotImplementedError(
-                "No Hardware UART on (tx,rx)={}\nValid UART ports".format(
-                    (tx, rx), uartPorts))
+                "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
+            )
 
     def deinit(self):
         self._uart = None