add pixels

[Adafruit_Blinka-hackapet.git] / src / adafruit_blinka / microcontroller / generic_agnostic_board / spi.py

diff --git a/src/adafruit_blinka/microcontroller/generic_agnostic_board/spi.py b/src/adafruit_blinka/microcontroller/generic_agnostic_board/spi.py
new file mode 100644 (file)
index 0000000..3012573
--- /dev/null
+++ b/src/adafruit_blinka/microcontroller/generic_agnostic_board/spi.py
@@ -0,0 +1,55 @@
+# SPDX-FileCopyrightText: 2024 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""SPI class for a generic agnostic board."""
+# from .rp2040_u2if import rp2040_u2if
+
+
+# pylint: disable=protected-access, no-self-use
+class SPI:
+    """SPI Base Class for a generic agnostic board."""
+
+    MSB = 0
+
+    def __init__(self, index, *, baudrate=100000):
+        self._index = index
+        self._frequency = baudrate
+
+    # pylint: disable=too-many-arguments,unused-argument
+    def init(
+        self,
+        baudrate=1000000,
+        polarity=0,
+        phase=0,
+        bits=8,
+        firstbit=MSB,
+        sck=None,
+        mosi=None,
+        miso=None,
+    ):
+        """Initialize the Port"""
+        self._frequency = baudrate
+
+    # pylint: enable=too-many-arguments
+
+    @property
+    def frequency(self):
+        """Return the current frequency"""
+        return self._frequency
+
+    def write(self, buf, start=0, end=None):
+        """Write data from the buffer to SPI"""
+        pass
+
+    def readinto(self, buf, start=0, end=None, write_value=0):
+        """Read data from SPI and into the buffer"""
+        pass
+
+    # pylint: disable=too-many-arguments
+    def write_readinto(
+        self, buffer_out, buffer_in, out_start=0, out_end=None, in_start=0, in_end=None
+    ):
+        """Perform a half-duplex write from buffer_out and then
+        read data into buffer_in
+        """
+        pass