add missing return value in _begin_transaction

[hackapet/Adafruit_Blinka_Displayio.git] / paralleldisplay.py

diff --git a/paralleldisplay.py b/paralleldisplay.py
index 59fb08c91bc06202762f00eb4de4749b79009c33..4e828cce49253a4a89cb07b8a5f088c6099df624 100644 (file)
--- a/paralleldisplay.py
+++ b/paralleldisplay.py
@@ -17,8 +17,9 @@ paralleldisplay for Blinka
 
 """
 
 
 """
 

+from typing import Optional

 import microcontroller
 import microcontroller

-import circuitpython_typing
+from circuitpython_typing import ReadableBuffer

 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"


@@ -37,8 +38,8 @@ class ParallelBus:
         command: microcontroller.Pin,
         chip_select: microcontroller.Pin,
         write: microcontroller.Pin,
         command: microcontroller.Pin,
         chip_select: microcontroller.Pin,
         write: microcontroller.Pin,

-        read: microcontroller.Pin,
-        reset: microcontroller.Pin,
+        read: Optional[microcontroller.Pin],
+        reset: Optional[microcontroller.Pin] = None,

         frequency: int = 30000000,
     ):
         # pylint: disable=unnecessary-pass
         frequency: int = 30000000,
     ):
         # pylint: disable=unnecessary-pass


@@ -61,9 +62,26 @@ class ParallelBus:
         """
         raise NotImplementedError("ParallelBus reset has not been implemented yet")
 
         """
         raise NotImplementedError("ParallelBus reset has not been implemented yet")
 

-    def send(self, command: int, data: circuitpython_typing.ReadableBuffer) -> None:
+    def send(self, command: int, data: ReadableBuffer) -> None:

         """Sends the given command value followed by the full set of data. Display state,
         such as vertical scroll, set via ``send`` may or may not be reset once the code is
         done.
         """
         raise NotImplementedError("ParallelBus send has not been implemented yet")
         """Sends the given command value followed by the full set of data. Display state,
         such as vertical scroll, set via ``send`` may or may not be reset once the code is
         done.
         """
         raise NotImplementedError("ParallelBus send has not been implemented yet")

+
+    def _send(
+        self,
+        _data_type: int,
+        _chip_select: int,
+        _data: ReadableBuffer,
+    ) -> None:
+        pass
+
+    def _free(self) -> bool:
+        """Attempt to free the bus and return False if busy"""
+
+    def _begin_transaction(self) -> bool:
+        pass
+
+    def _end_transaction(self) -> None:
+        pass