TMC2209 camera slider project

TMC2209_Camera_Slider/CircuitPython/generic_uart_device.py

@@ -0,0 +1,46 @@
+# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+# pylint: disable=too-few-public-methods
+
+__version__ = "0.0.0+auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_BusDevice.git"
+
+class GenericUARTDevice:
+    """Class for communicating with a device via generic UART read/write functions"""
+
+    def __init__(self, uart, read_func=None, write_func=None,
+                 readreg_func=None, writereg_func=None):
+        self._uart = uart
+        self._read_func = read_func
+        self._write_func = write_func
+        self._readreg_func = readreg_func
+        self._writereg_func = writereg_func
+
+    def read(self, buffer: bytearray, length: int) -> int:
+        """Read raw data from device into buffer"""
+        if self._read_func is None:
+            return 0
+        while self._uart.in_waiting:
+            self._uart.read()
+        return self._read_func(buffer, length)
+
+    def write(self, buffer: bytes, length: int) -> int:
+        """Write raw data from buffer to device"""
+        if self._write_func is None:
+            return 0
+        return self._write_func(buffer, length)
+
+    def read_register(self, addr_buf: bytes, addr_len: int,
+                      data_buf: bytearray, data_len: int) -> int:
+        """Read from device register"""
+        if self._readreg_func is None:
+            return 0
+        return self._readreg_func(addr_buf, addr_len, data_buf, data_len)
+
+    def write_register(self, addr_buf: bytes, addr_len: int, data_buf: bytes, data_len: int) -> int:
+        """Write to device register"""
+        if self._writereg_func is None:
+            return 0
+        return self._writereg_func(addr_buf, addr_len, data_buf, data_len)