Squashed 'third_party/allwpilib_2017/' content from commit 35ac87d

Change-Id: I7bb6f5556c30d3f5a092e68de0be9c710c60c9f4
git-subtree-dir: third_party/allwpilib_2017
git-subtree-split: 35ac87d6ff8b7f061c4f18c9ea316e5dccd4888a
diff --git a/wpilibc/athena/include/ADXL345_I2C.h b/wpilibc/athena/include/ADXL345_I2C.h
new file mode 100644
index 0000000..9f29592
--- /dev/null
+++ b/wpilibc/athena/include/ADXL345_I2C.h
@@ -0,0 +1,87 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008-2017. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include "I2C.h"
+#include "LiveWindow/LiveWindowSendable.h"
+#include "interfaces/Accelerometer.h"
+
+namespace frc {
+
+/**
+ * ADXL345 Accelerometer on I2C.
+ *
+ * This class allows access to a Analog Devices ADXL345 3-axis accelerometer on
+ * an I2C bus.
+ * This class assumes the default (not alternate) sensor address of 0x1D (7-bit
+ * address).
+ */
+class ADXL345_I2C : public Accelerometer, public LiveWindowSendable {
+ protected:
+  static const int kAddress = 0x1D;
+  static const int kPowerCtlRegister = 0x2D;
+  static const int kDataFormatRegister = 0x31;
+  static const int kDataRegister = 0x32;
+  static constexpr double kGsPerLSB = 0.00390625;
+  enum PowerCtlFields {
+    kPowerCtl_Link = 0x20,
+    kPowerCtl_AutoSleep = 0x10,
+    kPowerCtl_Measure = 0x08,
+    kPowerCtl_Sleep = 0x04
+  };
+  enum DataFormatFields {
+    kDataFormat_SelfTest = 0x80,
+    kDataFormat_SPI = 0x40,
+    kDataFormat_IntInvert = 0x20,
+    kDataFormat_FullRes = 0x08,
+    kDataFormat_Justify = 0x04
+  };
+
+ public:
+  enum Axes { kAxis_X = 0x00, kAxis_Y = 0x02, kAxis_Z = 0x04 };
+  struct AllAxes {
+    double XAxis;
+    double YAxis;
+    double ZAxis;
+  };
+
+ public:
+  explicit ADXL345_I2C(I2C::Port port, Range range = kRange_2G,
+                       int deviceAddress = kAddress);
+  virtual ~ADXL345_I2C() = default;
+
+  ADXL345_I2C(const ADXL345_I2C&) = delete;
+  ADXL345_I2C& operator=(const ADXL345_I2C&) = delete;
+
+  // Accelerometer interface
+  void SetRange(Range range) override;
+  double GetX() override;
+  double GetY() override;
+  double GetZ() override;
+
+  virtual double GetAcceleration(Axes axis);
+  virtual AllAxes GetAccelerations();
+
+  std::string GetSmartDashboardType() const override;
+  void InitTable(std::shared_ptr<ITable> subtable) override;
+  void UpdateTable() override;
+  std::shared_ptr<ITable> GetTable() const override;
+  void StartLiveWindowMode() override {}
+  void StopLiveWindowMode() override {}
+
+ protected:
+  I2C m_i2c;
+
+ private:
+  std::shared_ptr<ITable> m_table;
+};
+
+}  // namespace frc