Merge pull request #668 from BlitzCityDIY/main

Adding support for Feather ThinkInk
adafruit · Apr 6, 2023 · fdd6d0b · fdd6d0b
2 parents a43bcc2 + a13f761
commit fdd6d0b
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Showing 7 changed files with 123 additions and 8 deletions.
diff --git a/src/adafruit_blinka/board/feather_epd_u2if.py b/src/adafruit_blinka/board/feather_epd_u2if.py
@@ -0,0 +1,61 @@
+# SPDX-FileCopyrightText: 2023 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""
+Pin definitions for the Feather RP2040 ThinkInk with u2if firmware.
+
+Adafruit CircuitPython 6.2.0 on 2021-04-05; Adafruit Feather RP2040 ThinkInk with rp2040
+>>> import board
+>>> board.
+A0              A1              A2              A3
+D0              D1              D10             D11
+D12             D13             D24             D25
+D4              D5              D6              D9
+I2C             LED             MISO            MOSI
+NEOPIXEL        EPD_BUSY        SCK             SCL
+SDA             SPI             TX              UART
+EPD_CS          EPD_RESET       EPD_DC          EPD_MOSI
+EPD_SCK
+"""
+
+from adafruit_blinka.microcontroller.rp2040_u2if import pin
+
+D0 = pin.GP1
+D1 = pin.GP0
+D4 = pin.GP4
+D5 = pin.GP5
+D6 = pin.GP6
+D9 = pin.GP9
+D10 = pin.GP10
+D11 = pin.GP11
+D12 = pin.GP12
+D13 = pin.GP13
+D24 = pin.GP24
+D25 = pin.GP25
+
+A0 = pin.GP26
+A1 = pin.GP27
+A2 = pin.GP28
+A3 = pin.GP29
+
+LED = pin.GP13
+
+NEOPIXEL = pin.GP21
+
+SDA = pin.GP2
+SCL = pin.GP3
+
+SCLK = SCK = pin.GP14
+MOSI = pin.GP15
+MISO = pin.GP8
+
+EPD_BUSY = pin.GP16
+EPD_RESET = pin.GP17
+EPD_DC = pin.GP18
+EPD_CS = pin.GP19
+EPD_SCK = pin.GP22
+EPD_MOSI = pin.GP23
+
+# access u2if via pin instance to open for specifc VID/PID
+# pylint:disable = protected-access
+pin.GP0._u2if_open_hid(0x239A, 0x812C)
diff --git a/src/adafruit_blinka/microcontroller/rp2040_u2if/i2c.py b/src/adafruit_blinka/microcontroller/rp2040_u2if/i2c.py
@@ -88,6 +88,20 @@ def __init__(self, scl, sda, *, frequency=100000):
         super().__init__(index, frequency=frequency)
 
 
+class I2C_Feather_EPD(I2C):
+    """I2C Class for Feather EPD u2if"""
+
+    def __init__(self, scl, sda, *, frequency=100000):
+        index = None
+        if scl.id == 3 and sda.id == 2:
+            index = 1
+        if index is None:
+            raise ValueError("I2C not found on specified pins.")
+        self._index = index
+
+        super().__init__(index, frequency=frequency)
+
+
 class I2C_QTPY(I2C):
     """I2C Class for QT Py 2if"""
 

diff --git a/src/adafruit_blinka/microcontroller/rp2040_u2if/spi.py b/src/adafruit_blinka/microcontroller/rp2040_u2if/spi.py
@@ -4,6 +4,7 @@
 """SPI Classes for RP2040s with u2if firmware"""
 from .rp2040_u2if import rp2040_u2if
 
+
 # pylint: disable=protected-access, no-self-use
 class SPI:
     """SPI Base Class for RP2040 u2if"""
@@ -93,6 +94,20 @@ def __init__(self, clock, *, baudrate=100000):
         super().__init__(index, baudrate=baudrate)
 
 
+class SPI_Feather_EPD(SPI):
+    """SPI Class for Feather EPD u2if"""
+
+    def __init__(self, clock, *, baudrate=100000):
+        index = None
+        if clock.id == 14:
+            index = 0
+        if clock.id == 22:
+            index = 1
+        if index is None:
+            raise ValueError("No SPI port on specified pin.")
+        super().__init__(index, baudrate=baudrate)
+
+
 class SPI_QTPY(SPI):
     """SPI Class for QT Py u2if"""
 

diff --git a/src/board.py b/src/board.py
@@ -301,6 +301,9 @@
 elif board_id == ap_board.FEATHER_U2IF:
     from adafruit_blinka.board.feather_u2if import *
 
+elif board_id == ap_board.FEATHER_EPD_U2IF:
+    from adafruit_blinka.board.feather_epd_u2if import *
+
 elif board_id == ap_board.QTPY_U2IF:
     from adafruit_blinka.board.qtpy_u2if import *
 
@@ -340,15 +343,16 @@
 
     package = str(pkg_resources.get_distribution("adafruit_platformdetect")).split()
     raise NotImplementedError(
-        "{1} version {2} was unable to identify the board and/or microcontroller running "
-        "the {0} platform. Please be sure you have the latest packages running: 'pip3 install "
-        "--upgrade adafruit-blinka adafruit-platformdetect'".format(
-            platform.system(), package[0], package[1]
-        )
+        f"""
+        {package[0]} version {package[1]} was unable to identify the board and/or
+        microcontroller running the {platform.system()} platform. Please be sure you
+        have the latest packages running:
+        'pip3 install --upgrade adafruit-blinka adafruit-platformdetect'
+        """
     )
 
 else:
-    raise NotImplementedError("Board not supported {}".format(board_id))
+    raise NotImplementedError(f"Board not supported {board_id}.")
 
 if "SCL" in locals() and "SDA" in locals():
 

diff --git a/src/busio.py b/src/busio.py
@@ -67,6 +67,13 @@ def init(self, scl, sda, frequency):
                 I2C_Feather 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.qtpy_u2if:
@@ -245,6 +252,14 @@ def __init__(self, clock, MOSI=None, MISO=None):
                 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_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
@@ -332,6 +347,10 @@ def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
             from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
                 SPI_Feather as _SPI,
             )
+        elif detector.board.feather_epd_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+                SPI_Feather_EPD as _SPI,
+            )
         elif detector.board.itsybitsy_u2if:
             from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
                 SPI_ItsyBitsy as _SPI,

diff --git a/src/neopixel_write.py b/src/neopixel_write.py
@@ -10,7 +10,7 @@
 
 * Author(s): ladyada
 """
-
+# pylint: disable=too-many-boolean-expressions
 import sys
 
 from adafruit_blinka.agnostic import detector
@@ -21,6 +21,7 @@
     from adafruit_blinka.microcontroller.rp2040_u2if import neopixel as _neopixel
 elif (
     detector.board.feather_u2if
+    or detector.board.feather_epd_u2if
     or detector.board.qtpy_u2if
     or detector.board.itsybitsy_u2if
     or detector.board.macropad_u2if

diff --git a/src/pwmio.py b/src/pwmio.py
@@ -9,7 +9,7 @@
 
 * Author(s): Melissa LeBlanc-Williams
 """
-
+# pylint: disable=too-many-boolean-expressions
 import sys
 
 from adafruit_blinka.agnostic import detector
@@ -38,6 +38,7 @@
     from adafruit_blinka.microcontroller.rp2040_u2if.pwmio import PWMOut
 elif (
     detector.board.feather_u2if
+    or detector.board.feather_epd_u2if
     or detector.board.qtpy_u2if
     or detector.board.itsybitsy_u2if
     or detector.board.macropad_u2if