Add y2023 folder
2022 Bot specific things were removed
Change-Id: I6563d477a65bf2eae5d39933003742bd372cf82e
Signed-off-by: Maxwell Henderson <mxwhenderson@gmail.com>
Signed-off-by: Xander Yee <xander.yee@gmail.com>
diff --git a/y2023/wpilib_interface.cc b/y2023/wpilib_interface.cc
new file mode 100644
index 0000000..77ff5af
--- /dev/null
+++ b/y2023/wpilib_interface.cc
@@ -0,0 +1,310 @@
+#include <unistd.h>
+
+#include <array>
+#include <chrono>
+#include <cinttypes>
+#include <cmath>
+#include <cstdio>
+#include <cstring>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <thread>
+
+#include "ctre/phoenix/CANifier.h"
+#include "frc971/wpilib/ahal/AnalogInput.h"
+#include "frc971/wpilib/ahal/Counter.h"
+#include "frc971/wpilib/ahal/DigitalGlitchFilter.h"
+#include "frc971/wpilib/ahal/DriverStation.h"
+#include "frc971/wpilib/ahal/Encoder.h"
+#include "frc971/wpilib/ahal/Servo.h"
+#include "frc971/wpilib/ahal/TalonFX.h"
+#include "frc971/wpilib/ahal/VictorSP.h"
+#undef ERROR
+
+#include "aos/commonmath.h"
+#include "aos/events/event_loop.h"
+#include "aos/events/shm_event_loop.h"
+#include "aos/init.h"
+#include "aos/logging/logging.h"
+#include "aos/realtime.h"
+#include "aos/time/time.h"
+#include "aos/util/log_interval.h"
+#include "aos/util/phased_loop.h"
+#include "aos/util/wrapping_counter.h"
+#include "ctre/phoenix/motorcontrol/can/TalonFX.h"
+#include "ctre/phoenix/motorcontrol/can/TalonSRX.h"
+#include "frc971/autonomous/auto_mode_generated.h"
+#include "frc971/control_loops/drivetrain/drivetrain_position_generated.h"
+#include "frc971/input/robot_state_generated.h"
+#include "frc971/queues/gyro_generated.h"
+#include "frc971/wpilib/ADIS16448.h"
+#include "frc971/wpilib/buffered_pcm.h"
+#include "frc971/wpilib/buffered_solenoid.h"
+#include "frc971/wpilib/dma.h"
+#include "frc971/wpilib/drivetrain_writer.h"
+#include "frc971/wpilib/encoder_and_potentiometer.h"
+#include "frc971/wpilib/joystick_sender.h"
+#include "frc971/wpilib/logging_generated.h"
+#include "frc971/wpilib/loop_output_handler.h"
+#include "frc971/wpilib/pdp_fetcher.h"
+#include "frc971/wpilib/sensor_reader.h"
+#include "frc971/wpilib/wpilib_robot_base.h"
+#include "y2023/constants.h"
+#include "y2023/control_loops/superstructure/superstructure_output_generated.h"
+#include "y2023/control_loops/superstructure/superstructure_position_generated.h"
+
+using ::aos::monotonic_clock;
+using ::y2023::constants::Values;
+namespace superstructure = ::y2023::control_loops::superstructure;
+namespace chrono = ::std::chrono;
+using std::make_unique;
+
+namespace y2023 {
+namespace wpilib {
+namespace {
+
+constexpr double kMaxBringupPower = 12.0;
+
+// 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.
+
+double drivetrain_velocity_translate(double in) {
+ return (((1.0 / in) / Values::kDrivetrainCyclesPerRevolution()) *
+ (2.0 * M_PI)) *
+ Values::kDrivetrainEncoderRatio() *
+ control_loops::drivetrain::kWheelRadius;
+}
+
+constexpr double kMaxFastEncoderPulsesPerSecond =
+ /*std::max({*/ Values::kMaxDrivetrainEncoderPulsesPerSecond() /*,
+ Values::kMaxIntakeEncoderPulsesPerSecond()})*/
+ ;
+/*static_assert(kMaxFastEncoderPulsesPerSecond <= 1300000,
+ "fast encoders are too fast");*/
+
+} // namespace
+
+// Class to send position messages with sensor readings to our loops.
+class SensorReader : public ::frc971::wpilib::SensorReader {
+ public:
+ SensorReader(::aos::ShmEventLoop *event_loop,
+ std::shared_ptr<const Values> values)
+ : ::frc971::wpilib::SensorReader(event_loop),
+ values_(std::move(values)),
+ auto_mode_sender_(
+ event_loop->MakeSender<::frc971::autonomous::AutonomousMode>(
+ "/autonomous")),
+ superstructure_position_sender_(
+ event_loop->MakeSender<superstructure::Position>(
+ "/superstructure")),
+ drivetrain_position_sender_(
+ event_loop
+ ->MakeSender<::frc971::control_loops::drivetrain::Position>(
+ "/drivetrain")),
+ gyro_sender_(event_loop->MakeSender<::frc971::sensors::GyroReading>(
+ "/drivetrain")) {
+ // Set to filter out anything shorter than 1/4 of the minimum pulse width
+ // we should ever see.
+ UpdateFastEncoderFilterHz(kMaxFastEncoderPulsesPerSecond);
+ }
+
+ void Start() override {
+ // TODO(Ravago): Figure out why adding multiple DMA readers results in weird
+ // behavior
+ // AddToDMA(&imu_heading_reader_);
+ AddToDMA(&imu_yaw_rate_reader_);
+ }
+
+ // Auto mode switches.
+ void set_autonomous_mode(int i, ::std::unique_ptr<frc::DigitalInput> sensor) {
+ autonomous_modes_.at(i) = ::std::move(sensor);
+ }
+
+ void RunIteration() override {
+ superstructure_reading_->Set(true);
+ { auto builder = superstructure_position_sender_.MakeBuilder(); }
+
+ {
+ auto builder = drivetrain_position_sender_.MakeBuilder();
+ frc971::control_loops::drivetrain::Position::Builder drivetrain_builder =
+ builder.MakeBuilder<frc971::control_loops::drivetrain::Position>();
+ drivetrain_builder.add_left_encoder(
+ constants::Values::DrivetrainEncoderToMeters(
+ drivetrain_left_encoder_->GetRaw()));
+ drivetrain_builder.add_left_speed(
+ drivetrain_velocity_translate(drivetrain_left_encoder_->GetPeriod()));
+
+ drivetrain_builder.add_right_encoder(
+ -constants::Values::DrivetrainEncoderToMeters(
+ drivetrain_right_encoder_->GetRaw()));
+ drivetrain_builder.add_right_speed(-drivetrain_velocity_translate(
+ drivetrain_right_encoder_->GetPeriod()));
+
+ builder.CheckOk(builder.Send(drivetrain_builder.Finish()));
+ }
+
+ {
+ auto builder = gyro_sender_.MakeBuilder();
+ ::frc971::sensors::GyroReading::Builder gyro_reading_builder =
+ builder.MakeBuilder<::frc971::sensors::GyroReading>();
+ // +/- 2000 deg / sec
+ constexpr double kMaxVelocity = 4000; // degrees / second
+ constexpr double kVelocityRadiansPerSecond =
+ kMaxVelocity / 360 * (2.0 * M_PI);
+
+ // Only part of the full range is used to prevent being 100% on or off.
+ constexpr double kScaledRangeLow = 0.1;
+ constexpr double kScaledRangeHigh = 0.9;
+
+ constexpr double kPWMFrequencyHz = 200;
+ double heading_duty_cycle =
+ imu_heading_reader_.last_width() * kPWMFrequencyHz;
+ double velocity_duty_cycle =
+ imu_yaw_rate_reader_.last_width() * kPWMFrequencyHz;
+
+ constexpr double kDutyCycleScale =
+ 1 / (kScaledRangeHigh - kScaledRangeLow);
+ // scale from 0.1 - 0.9 to 0 - 1
+ double rescaled_heading_duty_cycle =
+ (heading_duty_cycle - kScaledRangeLow) * kDutyCycleScale;
+ double rescaled_velocity_duty_cycle =
+ (velocity_duty_cycle - kScaledRangeLow) * kDutyCycleScale;
+
+ if (!std::isnan(rescaled_heading_duty_cycle)) {
+ gyro_reading_builder.add_angle(rescaled_heading_duty_cycle *
+ (2.0 * M_PI));
+ }
+ if (!std::isnan(rescaled_velocity_duty_cycle)) {
+ gyro_reading_builder.add_velocity((rescaled_velocity_duty_cycle - 0.5) *
+ kVelocityRadiansPerSecond);
+ }
+ builder.CheckOk(builder.Send(gyro_reading_builder.Finish()));
+ }
+
+ {
+ auto builder = auto_mode_sender_.MakeBuilder();
+
+ uint32_t mode = 0;
+ for (size_t i = 0; i < autonomous_modes_.size(); ++i) {
+ if (autonomous_modes_[i] && autonomous_modes_[i]->Get()) {
+ mode |= 1 << i;
+ }
+ }
+
+ auto auto_mode_builder =
+ builder.MakeBuilder<frc971::autonomous::AutonomousMode>();
+
+ auto_mode_builder.add_mode(mode);
+
+ builder.CheckOk(builder.Send(auto_mode_builder.Finish()));
+ }
+ }
+
+ std::shared_ptr<frc::DigitalOutput> superstructure_reading_;
+
+ void set_superstructure_reading(
+ std::shared_ptr<frc::DigitalOutput> superstructure_reading) {
+ superstructure_reading_ = superstructure_reading;
+ }
+
+ private:
+ std::shared_ptr<const Values> values_;
+
+ aos::Sender<frc971::autonomous::AutonomousMode> auto_mode_sender_;
+ aos::Sender<superstructure::Position> superstructure_position_sender_;
+ aos::Sender<frc971::control_loops::drivetrain::Position>
+ drivetrain_position_sender_;
+ ::aos::Sender<::frc971::sensors::GyroReading> gyro_sender_;
+
+ std::array<std::unique_ptr<frc::DigitalInput>, 2> autonomous_modes_;
+
+ frc971::wpilib::DMAPulseWidthReader imu_heading_reader_, imu_yaw_rate_reader_;
+};
+
+class SuperstructureWriter
+ : public ::frc971::wpilib::LoopOutputHandler<superstructure::Output> {
+ public:
+ SuperstructureWriter(aos::EventLoop *event_loop)
+ : frc971::wpilib::LoopOutputHandler<superstructure::Output>(
+ event_loop, "/superstructure") {}
+
+ std::shared_ptr<frc::DigitalOutput> superstructure_reading_;
+
+ void set_superstructure_reading(
+ std::shared_ptr<frc::DigitalOutput> superstructure_reading) {
+ superstructure_reading_ = superstructure_reading;
+ }
+
+ private:
+ void Stop() override { AOS_LOG(WARNING, "Superstructure output too old.\n"); }
+
+ void Write(const superstructure::Output &output) override { (void)output; }
+
+ static void WriteCan(const double voltage,
+ ::ctre::phoenix::motorcontrol::can::TalonFX *falcon) {
+ falcon->Set(
+ ctre::phoenix::motorcontrol::ControlMode::PercentOutput,
+ std::clamp(voltage, -kMaxBringupPower, kMaxBringupPower) / 12.0);
+ }
+
+ template <typename T>
+ static void WritePwm(const double voltage, T *motor) {
+ motor->SetSpeed(std::clamp(voltage, -kMaxBringupPower, kMaxBringupPower) /
+ 12.0);
+ }
+};
+
+
+class WPILibRobot : public ::frc971::wpilib::WPILibRobotBase {
+ public:
+ ::std::unique_ptr<frc::Encoder> make_encoder(int index) {
+ return make_unique<frc::Encoder>(10 + index * 2, 11 + index * 2, false,
+ frc::Encoder::k4X);
+ }
+
+ void Run() override {
+ std::shared_ptr<const Values> values =
+ std::make_shared<const Values>(constants::MakeValues());
+
+ aos::FlatbufferDetachedBuffer<aos::Configuration> config =
+ aos::configuration::ReadConfig("aos_config.json");
+
+ // Thread 1.
+ // Thread 2.
+ ::aos::ShmEventLoop pdp_fetcher_event_loop(&config.message());
+ ::frc971::wpilib::PDPFetcher pdp_fetcher(&pdp_fetcher_event_loop);
+ AddLoop(&pdp_fetcher_event_loop);
+
+ std::shared_ptr<frc::DigitalOutput> superstructure_reading =
+ make_unique<frc::DigitalOutput>(25);
+
+ // Thread 3.
+ ::aos::ShmEventLoop sensor_reader_event_loop(&config.message());
+ SensorReader sensor_reader(&sensor_reader_event_loop, values);
+ sensor_reader.set_pwm_trigger(true);
+ sensor_reader.set_drivetrain_left_encoder(make_encoder(1));
+ sensor_reader.set_drivetrain_right_encoder(make_encoder(0));
+ sensor_reader.set_superstructure_reading(superstructure_reading);
+
+ AddLoop(&sensor_reader_event_loop);
+
+ // Thread 4.
+ ::aos::ShmEventLoop output_event_loop(&config.message());
+ ::frc971::wpilib::DrivetrainWriter drivetrain_writer(&output_event_loop);
+
+ SuperstructureWriter superstructure_writer(&output_event_loop);
+
+ superstructure_writer.set_superstructure_reading(superstructure_reading);
+
+ AddLoop(&output_event_loop);
+
+ RunLoops();
+ }
+};
+
+} // namespace wpilib
+} // namespace y2023
+
+AOS_ROBOT_CLASS(::y2023::wpilib::WPILibRobot);