Add STEMMA QT Rotary Encoder Driver

src/components/i2c/drivers/WipperSnapper_I2C_Driver_RotaryEncoder.h

@@ -0,0 +1,84 @@
+/*!
+ * @file WipperSnapper_I2C_Driver_RotaryEncoder.h
+ *
+ * Device driver for the STEMMA QT Rotary Encoder.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Copyright (c) Brent Rubell 2023 for Adafruit Industries.
+ *
+ * MIT license, all text here must be included in any redistribution.
+ *
+ */
+#ifndef WipperSnapper_I2C_Driver_RotaryEncoder_H
+#define WipperSnapper_I2C_Driver_RotaryEncoder_H
+
+#include "WipperSnapper_I2C_Driver.h"
+#include <Adafruit_Seesaw.h>
+
+/**************************************************************************/
+/*!
+    @brief  Class that provides a driver interface for a STEMMA QT Rotary Encoder.
+*/
+/**************************************************************************/
+class WipperSnapper_I2C_Driver_RotaryEncoder : public WipperSnapper_I2C_Driver {
+public:
+  /*******************************************************************************/
+  /*!
+      @brief    Constructor for a STEMMA QT Rotary Encoder.
+      @param    i2c
+                The I2C interface.
+      @param    sensorAddress
+                7-bit device address.
+  */
+  /*******************************************************************************/
+  WipperSnapper_I2C_Driver_RotaryEncoder(TwoWire *i2c, uint16_t sensorAddress)
+      : WipperSnapper_I2C_Driver(i2c, sensorAddress) {
+    _i2c = i2c; //TODO: Is this necessary if it doesn't need to get passed to seesaw::begin?
+    _sensorAddress = sensorAddress;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Destructor for an STEMMA QT Rotary Encoder.
+  */
+  /*******************************************************************************/
+  ~WipperSnapper_I2C_Driver_RotaryEncoder() {
+    // Called when a RotaryEncoder component is deleted.
+    delete _RotaryEncoder;
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Initializes the STEMMA QT Rotary Encoder and begins I2C.
+      @returns  True if initialized successfully, False otherwise.
+  */
+  /*******************************************************************************/
+  bool begin() {
+    _RotaryEncoder = new Adafruit_seesaw();
+    return _RotaryEncoder->begin((uint8_t)_sensorAddress); //TODO: Do i need to send constructor params for unit8_t "flow" or bool "reset"?
+  }
+
+  /*******************************************************************************/
+  /*!
+      @brief    Reads the current postion of a rotary encoder.
+      @param    rawEvent
+                Pointer to an Adafruit_Sensor event.
+      @returns  True if the sensor event was obtained successfully, False
+                otherwise.
+  */
+  /*******************************************************************************/
+  bool getEncoderPosition(sensors_event_t *rawEvent) {
+    rawEvent->data = _RotaryEncoder->getEncoderPosition(); //it doesn't look like Adafruit_Sensor was built for this sort of thing
+    return true;
+  }
+
+
+
+protected:
+  Adafruit_seesaw *_RotaryEncoder; ///< Pointer to RotaryEncoder object
+};
+
+#endif // WipperSnapper_I2C_Driver_RotaryEncoder