Add support for NVIDIA Jetson NX

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

diff --git a/src/busio.py b/src/busio.py
index be09cd08833c79e41a7e378bf2b02ca7578122cf..649ba86f3bda557720c339d9a373f7f72184fb1f 100755 (executable)
--- a/src/busio.py
+++ b/src/busio.py
@@ -7,9 +7,11 @@ See `CircuitPython:busio` in CircuitPython for more details.
 * Author(s): cefn
 """
 
+import threading
+
 from adafruit_blinka import Enum, Lockable, agnostic
 from adafruit_blinka.agnostic import board_id, detector
-import adafruit_platformdetect.board as ap_board
+import adafruit_platformdetect.constants.boards as ap_board
 
 class I2C(Lockable):
     def __init__(self, scl, sda, frequency=400000):
@@ -19,11 +21,15 @@ class I2C(Lockable):
         self.deinit()
         if detector.board.ftdi_ft232h:
             from adafruit_blinka.microcontroller.ft232h.i2c import I2C
-            self._i2c = I2C()
+            self._i2c = I2C(frequency=frequency)
             return
         elif detector.board.binho_nova:
             from adafruit_blinka.microcontroller.nova.i2c import I2C
-            self._i2c = 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
@@ -31,14 +37,19 @@ class I2C(Lockable):
             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 ValueError(
                 "No Hardware I2C on (scl,sda)={}\nValid I2C ports: {}".format((scl, sda), i2cPorts)
             )
 
+        self._lock = threading.RLock()
+
     def deinit(self):
         try:
             del self._i2c
@@ -46,9 +57,11 @@ class I2C(Lockable):
             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):
@@ -117,7 +130,7 @@ class SPI(Lockable):
             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.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
@@ -143,12 +156,22 @@ class SPI(Lockable):
         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.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
         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:
+            from adafruit_blinka.microcontroller.allwinner.a64.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