Squashed 'third_party/allwpilib_2016/' content from commit 7f61816
Change-Id: If9d9245880859cdf580f5d7f77045135d0521ce7
git-subtree-dir: third_party/allwpilib_2016
git-subtree-split: 7f618166ed253a24629934fcf89c3decb0528a3b
diff --git a/wpilibc/Athena/src/Servo.cpp b/wpilibc/Athena/src/Servo.cpp
new file mode 100644
index 0000000..4300cc4
--- /dev/null
+++ b/wpilibc/Athena/src/Servo.cpp
@@ -0,0 +1,132 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008. 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 $(WIND_BASE)/WPILib. */
+/*----------------------------------------------------------------------------*/
+
+#include "Servo.h"
+
+#include "LiveWindow/LiveWindow.h"
+
+constexpr float Servo::kMaxServoAngle;
+constexpr float Servo::kMinServoAngle;
+
+constexpr float Servo::kDefaultMaxServoPWM;
+constexpr float Servo::kDefaultMinServoPWM;
+
+/**
+ * @param channel The PWM channel to which the servo is attached. 0-9 are
+ * on-board, 10-19 are on the MXP port
+ */
+Servo::Servo(uint32_t channel) : SafePWM(channel) {
+ // Set minimum and maximum PWM values supported by the servo
+ SetBounds(kDefaultMaxServoPWM, 0.0, 0.0, 0.0, kDefaultMinServoPWM);
+
+ // Assign defaults for period multiplier for the servo PWM control signal
+ SetPeriodMultiplier(kPeriodMultiplier_4X);
+
+ // printf("Done initializing servo %d\n", channel);
+}
+
+Servo::~Servo() {
+ if (m_table != nullptr) {
+ m_table->RemoveTableListener(this);
+ }
+}
+
+/**
+ * Set the servo position.
+ *
+ * Servo values range from 0.0 to 1.0 corresponding to the range of full left to
+ * full right.
+ *
+ * @param value Position from 0.0 to 1.0.
+ */
+void Servo::Set(float value) { SetPosition(value); }
+
+/**
+ * Set the servo to offline.
+ *
+ * Set the servo raw value to 0 (undriven)
+ */
+void Servo::SetOffline() { SetRaw(0); }
+
+/**
+ * Get the servo position.
+ *
+ * Servo values range from 0.0 to 1.0 corresponding to the range of full left to
+ * full right.
+ *
+ * @return Position from 0.0 to 1.0.
+ */
+float Servo::Get() const { return GetPosition(); }
+
+/**
+ * Set the servo angle.
+ *
+ * Assume that the servo angle is linear with respect to the PWM value (big
+ * assumption, need to test).
+ *
+ * Servo angles that are out of the supported range of the servo simply
+ * "saturate" in that direction
+ * In other words, if the servo has a range of (X degrees to Y degrees) than
+ * angles of less than X
+ * result in an angle of X being set and angles of more than Y degrees result in
+ * an angle of Y being set.
+ *
+ * @param degrees The angle in degrees to set the servo.
+ */
+void Servo::SetAngle(float degrees) {
+ if (degrees < kMinServoAngle) {
+ degrees = kMinServoAngle;
+ } else if (degrees > kMaxServoAngle) {
+ degrees = kMaxServoAngle;
+ }
+
+ SetPosition(((float)(degrees - kMinServoAngle)) / GetServoAngleRange());
+}
+
+/**
+ * Get the servo angle.
+ *
+ * Assume that the servo angle is linear with respect to the PWM value (big
+ * assumption, need to test).
+ * @return The angle in degrees to which the servo is set.
+ */
+float Servo::GetAngle() const {
+ return (float)GetPosition() * GetServoAngleRange() + kMinServoAngle;
+}
+
+void Servo::ValueChanged(ITable* source, llvm::StringRef key,
+ std::shared_ptr<nt::Value> value, bool isNew) {
+ if (!value->IsDouble()) return;
+ Set(value->GetDouble());
+}
+
+void Servo::UpdateTable() {
+ if (m_table != nullptr) {
+ m_table->PutNumber("Value", Get());
+ }
+}
+
+void Servo::StartLiveWindowMode() {
+ if (m_table != nullptr) {
+ m_table->AddTableListener("Value", this, true);
+ }
+}
+
+void Servo::StopLiveWindowMode() {
+ if (m_table != nullptr) {
+ m_table->RemoveTableListener(this);
+ }
+}
+
+std::string Servo::GetSmartDashboardType() const { return "Servo"; }
+
+void Servo::InitTable(std::shared_ptr<ITable> subTable) {
+ m_table = subTable;
+ UpdateTable();
+}
+
+std::shared_ptr<ITable> Servo::GetTable() const { return m_table; }