Import y2014 directory for the 2016 season.

Change-Id: Id12c60fa17d40edb23d3a7066c88d7a103fc60c5
diff --git a/y2016/wpilib/wpilib_interface.cc b/y2016/wpilib/wpilib_interface.cc
new file mode 100644
index 0000000..6442a2a
--- /dev/null
+++ b/y2016/wpilib/wpilib_interface.cc
@@ -0,0 +1,814 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <inttypes.h>
+
+#include <thread>
+#include <mutex>
+#include <functional>
+
+#include "Encoder.h"
+#include "Talon.h"
+#include "DriverStation.h"
+#include "AnalogInput.h"
+#include "Compressor.h"
+#include "Relay.h"
+#include "frc971/wpilib/wpilib_robot_base.h"
+#include "dma.h"
+#ifndef WPILIB2015
+#include "DigitalGlitchFilter.h"
+#endif
+#undef ERROR
+
+#include "aos/common/logging/logging.h"
+#include "aos/common/logging/queue_logging.h"
+#include "aos/common/time.h"
+#include "aos/common/util/log_interval.h"
+#include "aos/common/util/phased_loop.h"
+#include "aos/common/util/wrapping_counter.h"
+#include "aos/common/stl_mutex.h"
+#include "aos/linux_code/init.h"
+#include "aos/common/messages/robot_state.q.h"
+
+#include "frc971/shifter_hall_effect.h"
+
+#include "frc971/control_loops/drivetrain/drivetrain.q.h"
+#include "y2014/control_loops/claw/claw.q.h"
+#include "y2014/control_loops/shooter/shooter.q.h"
+#include "y2014/constants.h"
+#include "y2014/queues/auto_mode.q.h"
+
+#include "frc971/wpilib/joystick_sender.h"
+#include "frc971/wpilib/loop_output_handler.h"
+#include "frc971/wpilib/buffered_solenoid.h"
+#include "frc971/wpilib/buffered_pcm.h"
+#include "frc971/wpilib/gyro_sender.h"
+#include "frc971/wpilib/dma_edge_counting.h"
+#include "frc971/wpilib/interrupt_edge_counting.h"
+#include "frc971/wpilib/encoder_and_potentiometer.h"
+#include "frc971/wpilib/logging.q.h"
+#include "frc971/wpilib/wpilib_interface.h"
+#include "frc971/wpilib/pdp_fetcher.h"
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+using ::frc971::control_loops::drivetrain_queue;
+using ::y2014::control_loops::claw_queue;
+using ::y2014::control_loops::shooter_queue;
+
+namespace y2014 {
+namespace wpilib {
+
+// TODO(Brian): Fix the interpretation of the result of GetRaw here and in the
+// DMA stuff and then removing the * 2.0 in *_translate.
+// The low bit is direction.
+
+// TODO(brian): Replace this with ::std::make_unique once all our toolchains
+// have support.
+template <class T, class... U>
+std::unique_ptr<T> make_unique(U &&... u) {
+  return std::unique_ptr<T>(new T(std::forward<U>(u)...));
+}
+
+double drivetrain_translate(int32_t in) {
+  return -static_cast<double>(in) /
+         (256.0 /*cpr*/ * 4.0 /*4x*/) *
+         constants::GetValues().drivetrain_encoder_ratio *
+         (3.5 /*wheel diameter*/ * 2.54 / 100.0 * M_PI) * 2.0 / 2.0;
+}
+
+double drivetrain_velocity_translate(double in) {
+  return (1.0 / in) / 256.0 /*cpr*/ *
+         constants::GetValues().drivetrain_encoder_ratio *
+         (3.5 /*wheel diameter*/ * 2.54 / 100.0 * M_PI) * 2.0 / 2.0;
+}
+
+float hall_translate(const constants::ShifterHallEffect &k, float in_low,
+                     float in_high) {
+  const float low_ratio =
+      0.5 * (in_low - static_cast<float>(k.low_gear_low)) /
+      static_cast<float>(k.low_gear_middle - k.low_gear_low);
+  const float high_ratio =
+      0.5 + 0.5 * (in_high - static_cast<float>(k.high_gear_middle)) /
+                static_cast<float>(k.high_gear_high - k.high_gear_middle);
+
+  // Return low when we are below 1/2, and high when we are above 1/2.
+  if (low_ratio + high_ratio < 1.0) {
+    return low_ratio;
+  } else {
+    return high_ratio;
+  }
+}
+
+double claw_translate(int32_t in) {
+  return -static_cast<double>(in) / (256.0 /*cpr*/ * 4.0 /*quad*/) /
+         (18.0 / 48.0 /*encoder gears*/) / (12.0 / 60.0 /*chain reduction*/) *
+         (M_PI / 180.0) * 2.0;
+}
+
+double shooter_translate(int32_t in) {
+  return static_cast<double>(in) / (256.0 /*cpr*/ * 4.0 /*quad*/) *
+         16 /*sprocket teeth*/ * 0.375 /*chain pitch*/
+         * (2.54 / 100.0 /*in to m*/);
+}
+
+static const double kMaximumEncoderPulsesPerSecond =
+    5600.0 /* free speed RPM */ * 14.0 / 48.0 /* bottom gear reduction */ *
+    18.0 / 32.0 /* big belt reduction */ *
+    18.0 / 66.0 /* top gear reduction */ * 48.0 / 18.0 /* encoder gears */ /
+    60.0 /* seconds / minute */ * 256.0 /* CPR */;
+
+class SensorReader {
+ public:
+  SensorReader() {
+    // Set it to filter out anything shorter than 1/4 of the minimum pulse width
+    // we should ever see.
+    encoder_filter_.SetPeriodNanoSeconds(
+        static_cast<int>(1 / 4.0 / kMaximumEncoderPulsesPerSecond * 1e9 + 0.5));
+    hall_filter_.SetPeriodNanoSeconds(100000);
+  }
+
+  void set_auto_selector_analog(::std::unique_ptr<AnalogInput> analog) {
+    auto_selector_analog_ = ::std::move(analog);
+  }
+
+  void set_drivetrain_left_encoder(::std::unique_ptr<Encoder> encoder) {
+    drivetrain_left_encoder_ = ::std::move(encoder);
+    drivetrain_left_encoder_->SetMaxPeriod(0.005);
+  }
+
+  void set_drivetrain_right_encoder(::std::unique_ptr<Encoder> encoder) {
+    drivetrain_right_encoder_ = ::std::move(encoder);
+    drivetrain_right_encoder_->SetMaxPeriod(0.005);
+  }
+
+  void set_high_left_drive_hall(::std::unique_ptr<AnalogInput> analog) {
+    high_left_drive_hall_ = ::std::move(analog);
+  }
+
+  void set_low_right_drive_hall(::std::unique_ptr<AnalogInput> analog) {
+    low_right_drive_hall_ = ::std::move(analog);
+  }
+
+  void set_high_right_drive_hall(::std::unique_ptr<AnalogInput> analog) {
+    high_right_drive_hall_ = ::std::move(analog);
+  }
+
+  void set_low_left_drive_hall(::std::unique_ptr<AnalogInput> analog) {
+    low_left_drive_hall_ = ::std::move(analog);
+  }
+
+  void set_top_claw_encoder(::std::unique_ptr<Encoder> encoder) {
+    encoder_filter_.Add(encoder.get());
+    top_reader_.set_encoder(::std::move(encoder));
+  }
+
+  void set_top_claw_front_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    top_reader_.set_front_hall(::std::move(hall));
+  }
+
+  void set_top_claw_calibration_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    top_reader_.set_calibration_hall(::std::move(hall));
+  }
+
+  void set_top_claw_back_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    top_reader_.set_back_hall(::std::move(hall));
+  }
+
+  void set_bottom_claw_encoder(::std::unique_ptr<Encoder> encoder) {
+    encoder_filter_.Add(encoder.get());
+    bottom_reader_.set_encoder(::std::move(encoder));
+  }
+
+  void set_bottom_claw_front_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    bottom_reader_.set_front_hall(::std::move(hall));
+  }
+
+  void set_bottom_claw_calibration_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    bottom_reader_.set_calibration_hall(::std::move(hall));
+  }
+
+  void set_bottom_claw_back_hall(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    bottom_reader_.set_back_hall(::std::move(hall));
+  }
+
+  void set_shooter_encoder(::std::unique_ptr<Encoder> encoder) {
+    encoder_filter_.Add(encoder.get());
+    shooter_encoder_ = ::std::move(encoder);
+  }
+
+  void set_shooter_proximal(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    shooter_proximal_ = ::std::move(hall);
+  }
+
+  void set_shooter_distal(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    shooter_distal_ = ::std::move(hall);
+  }
+
+  void set_shooter_plunger(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    shooter_plunger_ = ::std::move(hall);
+    shooter_plunger_reader_ =
+        make_unique<::frc971::wpilib::DMADigitalReader>(shooter_plunger_.get());
+  }
+
+  void set_shooter_latch(::std::unique_ptr<DigitalInput> hall) {
+    hall_filter_.Add(hall.get());
+    shooter_latch_ = ::std::move(hall);
+    shooter_latch_reader_ =
+        make_unique<::frc971::wpilib::DMADigitalReader>(shooter_latch_.get());
+  }
+
+  // All of the DMA-related set_* calls must be made before this, and it doesn't
+  // hurt to do all of them.
+  void set_dma(::std::unique_ptr<DMA> dma) {
+    shooter_proximal_counter_ = make_unique<::frc971::wpilib::DMAEdgeCounter>(
+        shooter_encoder_.get(), shooter_proximal_.get());
+    shooter_distal_counter_ = make_unique<::frc971::wpilib::DMAEdgeCounter>(
+        shooter_encoder_.get(), shooter_distal_.get());
+
+    dma_synchronizer_.reset(
+        new ::frc971::wpilib::DMASynchronizer(::std::move(dma)));
+    dma_synchronizer_->Add(shooter_proximal_counter_.get());
+    dma_synchronizer_->Add(shooter_distal_counter_.get());
+    dma_synchronizer_->Add(shooter_plunger_reader_.get());
+    dma_synchronizer_->Add(shooter_latch_reader_.get());
+  }
+
+  void operator()() {
+    ::aos::SetCurrentThreadName("SensorReader");
+
+    my_pid_ = getpid();
+    ds_ =
+#ifdef WPILIB2015
+        DriverStation::GetInstance();
+#else
+        &DriverStation::GetInstance();
+#endif
+
+    top_reader_.Start();
+    bottom_reader_.Start();
+    dma_synchronizer_->Start();
+
+    ::aos::time::PhasedLoop phased_loop(::aos::time::Time::InMS(5),
+                                        ::aos::time::Time::InMS(4));
+
+    ::aos::SetCurrentThreadRealtimePriority(40);
+    while (run_) {
+      {
+        const int iterations = phased_loop.SleepUntilNext();
+        if (iterations != 1) {
+          LOG(WARNING, "SensorReader skipped %d iterations\n", iterations - 1);
+        }
+      }
+      RunIteration();
+    }
+
+    top_reader_.Quit();
+    bottom_reader_.Quit();
+  }
+
+  void RunIteration() {
+    ::frc971::wpilib::SendRobotState(my_pid_, ds_);
+
+    const auto &values = constants::GetValues();
+
+    {
+      auto drivetrain_message = drivetrain_queue.position.MakeMessage();
+      drivetrain_message->right_encoder =
+          drivetrain_translate(drivetrain_right_encoder_->GetRaw());
+      drivetrain_message->left_encoder =
+          -drivetrain_translate(drivetrain_left_encoder_->GetRaw());
+      drivetrain_message->left_speed =
+          drivetrain_velocity_translate(drivetrain_left_encoder_->GetPeriod());
+      drivetrain_message->right_speed =
+          drivetrain_velocity_translate(drivetrain_right_encoder_->GetPeriod());
+
+      drivetrain_message->low_left_hall = low_left_drive_hall_->GetVoltage();
+      drivetrain_message->high_left_hall = high_left_drive_hall_->GetVoltage();
+      drivetrain_message->left_shifter_position =
+          hall_translate(values.left_drive, drivetrain_message->low_left_hall,
+                         drivetrain_message->high_left_hall);
+
+      drivetrain_message->low_right_hall = low_right_drive_hall_->GetVoltage();
+      drivetrain_message->high_right_hall =
+          high_right_drive_hall_->GetVoltage();
+      drivetrain_message->right_shifter_position =
+          hall_translate(values.right_drive, drivetrain_message->low_right_hall,
+                         drivetrain_message->high_right_hall);
+
+      drivetrain_message.Send();
+    }
+
+    ::y2014::sensors::auto_mode.MakeWithBuilder()
+        .voltage(auto_selector_analog_->GetVoltage())
+        .Send();
+
+    dma_synchronizer_->RunIteration();
+
+    {
+      auto shooter_message = shooter_queue.position.MakeMessage();
+      shooter_message->position = shooter_translate(shooter_encoder_->GetRaw());
+      shooter_message->plunger = !shooter_plunger_reader_->value();
+      shooter_message->latch = !shooter_latch_reader_->value();
+      CopyShooterPosedgeCounts(shooter_proximal_counter_.get(),
+                               &shooter_message->pusher_proximal);
+      CopyShooterPosedgeCounts(shooter_distal_counter_.get(),
+                               &shooter_message->pusher_distal);
+
+      shooter_message.Send();
+    }
+
+    {
+      auto claw_message = claw_queue.position.MakeMessage();
+      top_reader_.RunIteration(&claw_message->top);
+      bottom_reader_.RunIteration(&claw_message->bottom);
+
+      claw_message.Send();
+    }
+  }
+
+  void Quit() { run_ = false; }
+
+ private:
+  class HalfClawReader {
+   public:
+    HalfClawReader(bool reversed) : reversed_(reversed) {}
+
+    void set_encoder(::std::unique_ptr<Encoder> encoder) {
+      encoder_ = ::std::move(encoder);
+    }
+
+    void set_front_hall(::std::unique_ptr<DigitalInput> front_hall) {
+      front_hall_ = ::std::move(front_hall);
+    }
+
+    void set_calibration_hall(
+        ::std::unique_ptr<DigitalInput> calibration_hall) {
+      calibration_hall_ = ::std::move(calibration_hall);
+    }
+
+    void set_back_hall(::std::unique_ptr<DigitalInput> back_hall) {
+      back_hall_ = ::std::move(back_hall);
+    }
+
+    void Start() {
+      front_counter_ = make_unique<::frc971::wpilib::EdgeCounter>(
+          encoder_.get(), front_hall_.get());
+      synchronizer_.Add(front_counter_.get());
+      calibration_counter_ = make_unique<::frc971::wpilib::EdgeCounter>(
+          encoder_.get(), calibration_hall_.get());
+      synchronizer_.Add(calibration_counter_.get());
+      back_counter_ = make_unique<::frc971::wpilib::EdgeCounter>(
+          encoder_.get(), back_hall_.get());
+      synchronizer_.Add(back_counter_.get());
+      synchronized_encoder_ =
+          make_unique<::frc971::wpilib::InterruptSynchronizedEncoder>(
+              encoder_.get());
+      synchronizer_.Add(synchronized_encoder_.get());
+
+      synchronizer_.Start();
+    }
+
+    void Quit() { synchronizer_.Quit(); }
+
+    void RunIteration(control_loops::HalfClawPosition *half_claw_position) {
+      const double multiplier = reversed_ ? -1.0 : 1.0;
+
+      synchronizer_.RunIteration();
+
+      CopyPosition(front_counter_.get(), &half_claw_position->front);
+      CopyPosition(calibration_counter_.get(),
+                   &half_claw_position->calibration);
+      CopyPosition(back_counter_.get(), &half_claw_position->back);
+      half_claw_position->position =
+          multiplier * claw_translate(synchronized_encoder_->get());
+    }
+
+   private:
+    void CopyPosition(const ::frc971::wpilib::EdgeCounter *counter,
+                      ::frc971::HallEffectStruct *out) {
+      const double multiplier = reversed_ ? -1.0 : 1.0;
+
+      out->current = !counter->polled_value();
+      out->posedge_count = counter->negative_interrupt_count();
+      out->negedge_count = counter->positive_interrupt_count();
+      out->negedge_value =
+          multiplier * claw_translate(counter->last_positive_encoder_value());
+      out->posedge_value =
+          multiplier * claw_translate(counter->last_negative_encoder_value());
+    }
+
+    ::frc971::wpilib::InterruptSynchronizer synchronizer_{55};
+
+    ::std::unique_ptr<::frc971::wpilib::EdgeCounter> front_counter_;
+    ::std::unique_ptr<::frc971::wpilib::EdgeCounter> calibration_counter_;
+    ::std::unique_ptr<::frc971::wpilib::EdgeCounter> back_counter_;
+    ::std::unique_ptr<::frc971::wpilib::InterruptSynchronizedEncoder>
+        synchronized_encoder_;
+
+    ::std::unique_ptr<Encoder> encoder_;
+    ::std::unique_ptr<DigitalInput> front_hall_;
+    ::std::unique_ptr<DigitalInput> calibration_hall_;
+    ::std::unique_ptr<DigitalInput> back_hall_;
+
+    const bool reversed_;
+  };
+
+  void CopyShooterPosedgeCounts(
+      const ::frc971::wpilib::DMAEdgeCounter *counter,
+      ::frc971::PosedgeOnlyCountedHallEffectStruct *output) {
+    output->current = !counter->polled_value();
+    // These are inverted because the hall effects give logical false when
+    // there's a magnet in front of them.
+    output->posedge_count = counter->negative_count();
+    output->negedge_count = counter->positive_count();
+    output->posedge_value =
+        shooter_translate(counter->last_negative_encoder_value());
+  }
+
+  int32_t my_pid_;
+  DriverStation *ds_;
+
+  ::std::unique_ptr<::frc971::wpilib::DMASynchronizer> dma_synchronizer_;
+
+  ::std::unique_ptr<AnalogInput> auto_selector_analog_;
+
+  ::std::unique_ptr<Encoder> drivetrain_left_encoder_;
+  ::std::unique_ptr<Encoder> drivetrain_right_encoder_;
+  ::std::unique_ptr<AnalogInput> low_left_drive_hall_;
+  ::std::unique_ptr<AnalogInput> high_left_drive_hall_;
+  ::std::unique_ptr<AnalogInput> low_right_drive_hall_;
+  ::std::unique_ptr<AnalogInput> high_right_drive_hall_;
+
+  HalfClawReader top_reader_{false}, bottom_reader_{true};
+
+  ::std::unique_ptr<Encoder> shooter_encoder_;
+  ::std::unique_ptr<DigitalInput> shooter_proximal_, shooter_distal_;
+  ::std::unique_ptr<DigitalInput> shooter_plunger_, shooter_latch_;
+  ::std::unique_ptr<::frc971::wpilib::DMAEdgeCounter> shooter_proximal_counter_,
+      shooter_distal_counter_;
+  ::std::unique_ptr<::frc971::wpilib::DMADigitalReader> shooter_plunger_reader_,
+      shooter_latch_reader_;
+
+  ::std::atomic<bool> run_{true};
+  DigitalGlitchFilter encoder_filter_, hall_filter_;
+};
+
+class SolenoidWriter {
+ public:
+  SolenoidWriter(const ::std::unique_ptr<::frc971::wpilib::BufferedPcm> &pcm)
+      : pcm_(pcm),
+        shooter_(".y2014.control_loops.shooter_queue.output"),
+        drivetrain_(".frc971.control_loops.drivetrain_queue.output") {}
+
+  void set_pressure_switch(::std::unique_ptr<DigitalInput> pressure_switch) {
+    pressure_switch_ = ::std::move(pressure_switch);
+  }
+
+  void set_compressor_relay(::std::unique_ptr<Relay> compressor_relay) {
+    compressor_relay_ = ::std::move(compressor_relay);
+  }
+
+  void set_drivetrain_left(
+      ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> s) {
+    drivetrain_left_ = ::std::move(s);
+  }
+
+  void set_drivetrain_right(
+      ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> s) {
+    drivetrain_right_ = ::std::move(s);
+  }
+
+  void set_shooter_latch(
+      ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> s) {
+    shooter_latch_ = ::std::move(s);
+  }
+
+  void set_shooter_brake(
+      ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> s) {
+    shooter_brake_ = ::std::move(s);
+  }
+
+  void operator()() {
+    ::aos::SetCurrentThreadName("Solenoids");
+    ::aos::SetCurrentThreadRealtimePriority(27);
+
+    ::aos::time::PhasedLoop phased_loop(::aos::time::Time::InMS(20),
+                                        ::aos::time::Time::InMS(1));
+
+    while (run_) {
+      {
+        const int iterations = phased_loop.SleepUntilNext();
+        if (iterations != 1) {
+          LOG(DEBUG, "Solenoids skipped %d iterations\n", iterations - 1);
+        }
+      }
+
+      {
+        shooter_.FetchLatest();
+        if (shooter_.get()) {
+          LOG_STRUCT(DEBUG, "solenoids", *shooter_);
+          shooter_latch_->Set(!shooter_->latch_piston);
+          shooter_brake_->Set(!shooter_->brake_piston);
+        }
+      }
+
+      {
+        drivetrain_.FetchLatest();
+        if (drivetrain_.get()) {
+          LOG_STRUCT(DEBUG, "solenoids", *drivetrain_);
+          drivetrain_left_->Set(!drivetrain_->left_high);
+          drivetrain_right_->Set(!drivetrain_->right_high);
+        }
+      }
+
+      {
+        ::frc971::wpilib::PneumaticsToLog to_log;
+        {
+          const bool compressor_on = !pressure_switch_->Get();
+          to_log.compressor_on = compressor_on;
+          if (compressor_on) {
+            compressor_relay_->Set(Relay::kForward);
+          } else {
+            compressor_relay_->Set(Relay::kOff);
+          }
+        }
+
+        pcm_->Flush();
+        to_log.read_solenoids = pcm_->GetAll();
+        LOG_STRUCT(DEBUG, "pneumatics info", to_log);
+      }
+    }
+  }
+
+  void Quit() { run_ = false; }
+
+ private:
+  const ::std::unique_ptr<::frc971::wpilib::BufferedPcm> &pcm_;
+
+  ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> drivetrain_left_;
+  ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> drivetrain_right_;
+  ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> shooter_latch_;
+  ::std::unique_ptr<::frc971::wpilib::BufferedSolenoid> shooter_brake_;
+
+  ::std::unique_ptr<DigitalInput> pressure_switch_;
+  ::std::unique_ptr<Relay> compressor_relay_;
+
+  ::aos::Queue<::y2014::control_loops::ShooterQueue::Output> shooter_;
+  ::aos::Queue<::frc971::control_loops::DrivetrainQueue::Output> drivetrain_;
+
+  ::std::atomic<bool> run_{true};
+};
+
+class DrivetrainWriter : public ::frc971::wpilib::LoopOutputHandler {
+ public:
+  void set_left_drivetrain_talon(::std::unique_ptr<Talon> t) {
+    left_drivetrain_talon_ = ::std::move(t);
+  }
+
+  void set_right_drivetrain_talon(::std::unique_ptr<Talon> t) {
+    right_drivetrain_talon_ = ::std::move(t);
+  }
+
+ private:
+  virtual void Read() override {
+    ::frc971::control_loops::drivetrain_queue.output.FetchAnother();
+  }
+
+  virtual void Write() override {
+    auto &queue = ::frc971::control_loops::drivetrain_queue.output;
+    LOG_STRUCT(DEBUG, "will output", *queue);
+    left_drivetrain_talon_->Set(-queue->left_voltage / 12.0);
+    right_drivetrain_talon_->Set(queue->right_voltage / 12.0);
+  }
+
+  virtual void Stop() override {
+    LOG(WARNING, "drivetrain output too old\n");
+    left_drivetrain_talon_->Disable();
+    right_drivetrain_talon_->Disable();
+  }
+
+  ::std::unique_ptr<Talon> left_drivetrain_talon_;
+  ::std::unique_ptr<Talon> right_drivetrain_talon_;
+};
+
+class ShooterWriter : public ::frc971::wpilib::LoopOutputHandler {
+ public:
+  void set_shooter_talon(::std::unique_ptr<Talon> t) {
+    shooter_talon_ = ::std::move(t);
+  }
+
+ private:
+  virtual void Read() override {
+    ::y2014::control_loops::shooter_queue.output.FetchAnother();
+  }
+
+  virtual void Write() override {
+    auto &queue = ::y2014::control_loops::shooter_queue.output;
+    LOG_STRUCT(DEBUG, "will output", *queue);
+    shooter_talon_->Set(queue->voltage / 12.0);
+  }
+
+  virtual void Stop() override {
+    LOG(WARNING, "shooter output too old\n");
+    shooter_talon_->Disable();
+  }
+
+  ::std::unique_ptr<Talon> shooter_talon_;
+};
+
+class ClawWriter : public ::frc971::wpilib::LoopOutputHandler {
+ public:
+  void set_top_claw_talon(::std::unique_ptr<Talon> t) {
+    top_claw_talon_ = ::std::move(t);
+  }
+
+  void set_bottom_claw_talon(::std::unique_ptr<Talon> t) {
+    bottom_claw_talon_ = ::std::move(t);
+  }
+
+  void set_left_tusk_talon(::std::unique_ptr<Talon> t) {
+    left_tusk_talon_ = ::std::move(t);
+  }
+
+  void set_right_tusk_talon(::std::unique_ptr<Talon> t) {
+    right_tusk_talon_ = ::std::move(t);
+  }
+
+  void set_intake1_talon(::std::unique_ptr<Talon> t) {
+    intake1_talon_ = ::std::move(t);
+  }
+
+  void set_intake2_talon(::std::unique_ptr<Talon> t) {
+    intake2_talon_ = ::std::move(t);
+  }
+
+ private:
+  virtual void Read() override {
+    ::y2014::control_loops::claw_queue.output.FetchAnother();
+  }
+
+  virtual void Write() override {
+    auto &queue = ::y2014::control_loops::claw_queue.output;
+    LOG_STRUCT(DEBUG, "will output", *queue);
+    intake1_talon_->Set(queue->intake_voltage / 12.0);
+    intake2_talon_->Set(queue->intake_voltage / 12.0);
+    bottom_claw_talon_->Set(-queue->bottom_claw_voltage / 12.0);
+    top_claw_talon_->Set(queue->top_claw_voltage / 12.0);
+    left_tusk_talon_->Set(queue->tusk_voltage / 12.0);
+    right_tusk_talon_->Set(-queue->tusk_voltage / 12.0);
+  }
+
+  virtual void Stop() override {
+    LOG(WARNING, "claw output too old\n");
+    intake1_talon_->Disable();
+    intake2_talon_->Disable();
+    bottom_claw_talon_->Disable();
+    top_claw_talon_->Disable();
+    left_tusk_talon_->Disable();
+    right_tusk_talon_->Disable();
+  }
+
+  ::std::unique_ptr<Talon> top_claw_talon_;
+  ::std::unique_ptr<Talon> bottom_claw_talon_;
+  ::std::unique_ptr<Talon> left_tusk_talon_;
+  ::std::unique_ptr<Talon> right_tusk_talon_;
+  ::std::unique_ptr<Talon> intake1_talon_;
+  ::std::unique_ptr<Talon> intake2_talon_;
+};
+
+class WPILibRobot : public ::frc971::wpilib::WPILibRobotBase {
+ public:
+  ::std::unique_ptr<Encoder> make_encoder(int index) {
+    return make_unique<Encoder>(10 + index * 2, 11 + index * 2, false,
+                                Encoder::k4X);
+  }
+
+  void Run() override {
+    ::aos::InitNRT();
+    ::aos::SetCurrentThreadName("StartCompetition");
+
+    ::frc971::wpilib::JoystickSender joystick_sender;
+    ::std::thread joystick_thread(::std::ref(joystick_sender));
+
+    ::frc971::wpilib::PDPFetcher pdp_fetcher;
+    ::std::thread pdp_fetcher_thread(::std::ref(pdp_fetcher));
+    SensorReader reader;
+
+    // Create this first to make sure it ends up in one of the lower-numbered
+    // FPGA slots so we can use it with DMA.
+    auto shooter_encoder_temp = make_encoder(2);
+
+    reader.set_auto_selector_analog(make_unique<AnalogInput>(4));
+
+    reader.set_drivetrain_left_encoder(make_encoder(0));
+    reader.set_drivetrain_right_encoder(make_encoder(1));
+    reader.set_high_left_drive_hall(make_unique<AnalogInput>(1));
+    reader.set_low_left_drive_hall(make_unique<AnalogInput>(0));
+    reader.set_high_right_drive_hall(make_unique<AnalogInput>(2));
+    reader.set_low_right_drive_hall(make_unique<AnalogInput>(3));
+
+    reader.set_top_claw_encoder(make_encoder(3));
+    reader.set_top_claw_front_hall(make_unique<DigitalInput>(4));  // R2
+    reader.set_top_claw_calibration_hall(make_unique<DigitalInput>(3));  // R3
+    reader.set_top_claw_back_hall(make_unique<DigitalInput>(5));  // R1
+
+    reader.set_bottom_claw_encoder(make_encoder(4));
+    reader.set_bottom_claw_front_hall(make_unique<DigitalInput>(1));  // L2
+    reader.set_bottom_claw_calibration_hall(make_unique<DigitalInput>(0));  // L3
+    reader.set_bottom_claw_back_hall(make_unique<DigitalInput>(2));  // L1
+
+    reader.set_shooter_encoder(::std::move(shooter_encoder_temp));
+    reader.set_shooter_proximal(make_unique<DigitalInput>(6));  // S1
+    reader.set_shooter_distal(make_unique<DigitalInput>(7));  // S2
+    reader.set_shooter_plunger(make_unique<DigitalInput>(8));  // S3
+    reader.set_shooter_latch(make_unique<DigitalInput>(9));  // S4
+
+    reader.set_dma(make_unique<DMA>());
+    ::std::thread reader_thread(::std::ref(reader));
+
+    ::frc971::wpilib::GyroSender gyro_sender;
+    ::std::thread gyro_thread(::std::ref(gyro_sender));
+
+    DrivetrainWriter drivetrain_writer;
+    drivetrain_writer.set_left_drivetrain_talon(
+        ::std::unique_ptr<Talon>(new Talon(5)));
+    drivetrain_writer.set_right_drivetrain_talon(
+        ::std::unique_ptr<Talon>(new Talon(2)));
+    ::std::thread drivetrain_writer_thread(::std::ref(drivetrain_writer));
+
+    ::y2014::wpilib::ClawWriter claw_writer;
+    claw_writer.set_top_claw_talon(::std::unique_ptr<Talon>(new Talon(1)));
+    claw_writer.set_bottom_claw_talon(::std::unique_ptr<Talon>(new Talon(0)));
+    claw_writer.set_left_tusk_talon(::std::unique_ptr<Talon>(new Talon(4)));
+    claw_writer.set_right_tusk_talon(::std::unique_ptr<Talon>(new Talon(3)));
+    claw_writer.set_intake1_talon(::std::unique_ptr<Talon>(new Talon(7)));
+    claw_writer.set_intake2_talon(::std::unique_ptr<Talon>(new Talon(8)));
+    ::std::thread claw_writer_thread(::std::ref(claw_writer));
+
+    ::y2014::wpilib::ShooterWriter shooter_writer;
+    shooter_writer.set_shooter_talon(::std::unique_ptr<Talon>(new Talon(6)));
+    ::std::thread shooter_writer_thread(::std::ref(shooter_writer));
+
+    ::std::unique_ptr<::frc971::wpilib::BufferedPcm> pcm(
+        new ::frc971::wpilib::BufferedPcm());
+    SolenoidWriter solenoid_writer(pcm);
+    solenoid_writer.set_drivetrain_left(pcm->MakeSolenoid(6));
+    solenoid_writer.set_drivetrain_right(pcm->MakeSolenoid(7));
+    solenoid_writer.set_shooter_latch(pcm->MakeSolenoid(5));
+    solenoid_writer.set_shooter_brake(pcm->MakeSolenoid(4));
+
+    solenoid_writer.set_pressure_switch(make_unique<DigitalInput>(25));
+    solenoid_writer.set_compressor_relay(make_unique<Relay>(0));
+    ::std::thread solenoid_thread(::std::ref(solenoid_writer));
+
+    // Wait forever. Not much else to do...
+    while (true) {
+      const int r = select(0, nullptr, nullptr, nullptr, nullptr);
+      if (r != 0) {
+        PLOG(WARNING, "infinite select failed");
+      } else {
+        PLOG(WARNING, "infinite select succeeded??\n");
+      }
+    }
+
+    LOG(ERROR, "Exiting WPILibRobot\n");
+
+    joystick_sender.Quit();
+    joystick_thread.join();
+    pdp_fetcher.Quit();
+    pdp_fetcher_thread.join();
+    reader.Quit();
+    reader_thread.join();
+    gyro_sender.Quit();
+    gyro_thread.join();
+
+    drivetrain_writer.Quit();
+    drivetrain_writer_thread.join();
+    shooter_writer.Quit();
+    shooter_writer_thread.join();
+    claw_writer.Quit();
+    claw_writer_thread.join();
+    solenoid_writer.Quit();
+    solenoid_thread.join();
+
+    ::aos::Cleanup();
+  }
+};
+
+}  // namespace wpilib
+}  // namespace y2014
+
+
+AOS_ROBOT_CLASS(::y2014::wpilib::WPILibRobot);