Add uart interface

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

diff --git a/src/busio.py b/src/busio.py
index 0f4b15b3a4e5304eacf9ef7995ab17b97379d011..30c6936d50ed89a5d075bab5cb37ef24c8249b5b 100755 (executable)
--- a/src/busio.py
+++ b/src/busio.py
@@ -7,6 +7,8 @@ See `CircuitPython:busio` in CircuitPython for more details.
 * Author(s): cefn
 """
 
 * 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
 from adafruit_blinka import Enum, Lockable, agnostic
 from adafruit_blinka.agnostic import board_id, detector
 import adafruit_platformdetect.board as ap_board


@@ -17,7 +19,15 @@ class I2C(Lockable):
 
     def init(self, scl, sda, frequency):
         self.deinit()
 
     def init(self, scl, sda, frequency):
         self.deinit()

-        if detector.board.any_embedded_linux:
+        if detector.board.ftdi_ft232h:
+            from adafruit_blinka.microcontroller.ft232h.i2c import I2C
+            self._i2c = I2C()
+            return
+        elif detector.board.binho_nova:
+            from adafruit_blinka.microcontroller.nova.i2c import I2C
+            self._i2c = I2C()
+            return
+        elif detector.board.any_embedded_linux:

             from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
         else:
             from machine import I2C as _I2C
             from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
         else:
             from machine import I2C as _I2C


@@ -27,10 +37,12 @@ class I2C(Lockable):
                 self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency)
                 break
         else:
                 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 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
     def deinit(self):
         try:
             del self._i2c


@@ -38,9 +50,11 @@ class I2C(Lockable):
             pass
 
     def __enter__(self):
             pass
 
     def __enter__(self):

+        self._lock.acquire()

         return self
 
     def __exit__(self, exc_type, exc_value, traceback):
         return self
 
     def __exit__(self, exc_type, exc_value, traceback):

+        self._lock.release()

         self.deinit()
 
     def scan(self):
         self.deinit()
 
     def scan(self):


@@ -72,7 +86,19 @@ class I2C(Lockable):
 class SPI(Lockable):
     def __init__(self, clock, MOSI=None, MISO=None):
         self.deinit()
 class SPI(Lockable):
     def __init__(self, clock, MOSI=None, MISO=None):
         self.deinit()

-        if detector.board.any_embedded_linux:
+        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
+            self._spi = _SPI()
+            self._pins = (SCK, MOSI, MISO)
+            return
+        elif 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
+        elif detector.board.any_embedded_linux:

             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
         else:
             from machine import SPI as _SPI
             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
         else:
             from machine import SPI as _SPI


@@ -85,7 +111,7 @@ class SPI(Lockable):
                 self._pins = (portSck, portMosi, portMiso)
                 break
         else:
                 self._pins = (portSck, portMosi, portMiso)
                 break
         else:

-            raise NotImplementedError(
+            raise ValueError(

                 "No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".
                 format((clock, MOSI, MISO), spiPorts))
 
                 "No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".
                 format((clock, MOSI, MISO), spiPorts))
 


@@ -96,7 +122,7 @@ class SPI(Lockable):
         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_beaglebone:
             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:
+        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.generic_linux.spi import SPI as _SPI
         elif board_id == ap_board.GIANT_BOARD:
             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:


@@ -123,6 +149,12 @@ 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_XAVIER:
             from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
             from adafruit_blinka.microcontroller.tegra.t194.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

         else:
             from machine import SPI as _SPI
             from machine import Pin
         else:
             from machine import SPI as _SPI
             from machine import Pin


@@ -146,6 +178,13 @@ class SPI(Lockable):
         self._spi = None
         self._pinIds = None
 
         self._spi = None
         self._pinIds = None
 

+    @property
+    def frequency(self):
+        try:
+            return self._spi.frequency
+        except AttributeError:
+            raise NotImplementedError("Frequency attribute not implemented for this platform")
+

     def write(self, buf, start=0, end=None):
         return self._spi.write(buf, start, end)
 
     def write(self, buf, start=0, end=None):
         return self._spi.write(buf, start, end)
 


@@ -175,9 +214,15 @@ class UART(Lockable):
                  flow=None):
         if detector.board.any_embedded_linux:
             raise RuntimeError('busio.UART not supported on this platform. Please use pyserial instead.')
                  flow=None):
         if detector.board.any_embedded_linux:
             raise RuntimeError('busio.UART not supported on this platform. Please use pyserial instead.')

+        elif detector.board.binho_nova:
+            from adafruit_blinka.microcontroller.nova.uart import UART as _UART

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

-        from microcontroller.pin import uartPorts
+
+        if detector.board.binho_nova:
+            from adafruit_blinka.microcontroller.nova.pin import uartPorts
+        else:
+            from microcontroller.pin import uartPorts

 
         self.baudrate = baudrate
 
 
         self.baudrate = baudrate
 


@@ -210,11 +255,13 @@ class UART(Lockable):
                 )
                 break
         else:
                 )
                 break
         else:

-            raise NotImplementedError(
+            raise ValueError(

                 "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
             )
 
     def deinit(self):
                 "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
             )
 
     def deinit(self):

+        if detector.board.binho_nova:
+            self._uart.deinit()

         self._uart = None
 
     def read(self, nbytes=None):
         self._uart = None
 
     def read(self, nbytes=None):