Merge changes I305d235d,I87e99a14

* changes:
  Move target mapping to 2023
  Solve mapping problem in 3d
diff --git a/frc971/rockpi/build_rootfs.sh b/frc971/rockpi/build_rootfs.sh
index f7abbd5..b6c8338 100755
--- a/frc971/rockpi/build_rootfs.sh
+++ b/frc971/rockpi/build_rootfs.sh
@@ -176,6 +176,7 @@
 copyfile root.root 500 root/bin/grow.sh
 copyfile root.root 500 root/bin/change_hostname.sh
 copyfile root.root 500 root/bin/deploy_kernel.sh
+copyfile root.root 500 root/bin/chrt.sh
 copyfile root.root 644 etc/systemd/system/grow-rootfs.service
 copyfile root.root 644 etc/sysctl.d/sctp.conf
 copyfile root.root 644 etc/systemd/logind.conf
diff --git a/frc971/vision/v4l2_reader.cc b/frc971/vision/v4l2_reader.cc
index 9b4863e..053bfa1 100644
--- a/frc971/vision/v4l2_reader.cc
+++ b/frc971/vision/v4l2_reader.cc
@@ -290,18 +290,21 @@
   memset(&format, 0, sizeof(format));
   format.type = multiplanar() ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
                               : V4L2_BUF_TYPE_VIDEO_CAPTURE;
-  format.fmt.pix.width = cols_;
-  format.fmt.pix.height = rows_;
+
+  constexpr int kWidth = 640;
+  constexpr int kHeight = 480;
+  format.fmt.pix.width = kWidth;
+  format.fmt.pix.height = kHeight;
   format.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
   // This means we want to capture from a progressive (non-interlaced)
   // source.
   format.fmt.pix.field = V4L2_FIELD_NONE;
   PCHECK(Ioctl(VIDIOC_S_FMT, &format) == 0);
-  CHECK_EQ(static_cast<int>(format.fmt.pix.width), cols_);
-  CHECK_EQ(static_cast<int>(format.fmt.pix.height), rows_);
+  CHECK_EQ(static_cast<int>(format.fmt.pix.width), kWidth);
+  CHECK_EQ(static_cast<int>(format.fmt.pix.height), kHeight);
   CHECK_EQ(static_cast<int>(format.fmt.pix.bytesperline),
-           cols_ * 2 /* bytes per pixel */);
-  CHECK_EQ(format.fmt.pix.sizeimage, ImageSize());
+           kWidth * 2 /* bytes per pixel */);
+  CHECK_EQ(format.fmt.pix.sizeimage, ImageSize(kHeight, kWidth));
 
   StreamOn();
 }
@@ -320,6 +323,8 @@
   epoll_->OnReadable(fd().get(), [this]() { OnImageReady(); });
 }
 
+RockchipV4L2Reader::~RockchipV4L2Reader() { epoll_->DeleteFd(fd().get()); }
+
 void RockchipV4L2Reader::OnImageReady() {
   if (!ReadLatestImage()) {
     return;
diff --git a/frc971/vision/v4l2_reader.h b/frc971/vision/v4l2_reader.h
index 182160d..e36fef8 100644
--- a/frc971/vision/v4l2_reader.h
+++ b/frc971/vision/v4l2_reader.h
@@ -63,7 +63,10 @@
 
   // TODO(Brian): This concept won't exist once we start using variable-size
   // H.264 frames.
-  size_t ImageSize() const { return rows_ * cols_ * 2 /* bytes per pixel */; }
+  size_t ImageSize() const { return ImageSize(rows_, cols_); }
+  static size_t ImageSize(int rows, int cols) {
+    return rows * cols * 2 /* bytes per pixel */;
+  }
 
   const aos::ScopedFD &fd() { return fd_; };
 
@@ -134,10 +137,6 @@
 class V4L2Reader : public V4L2ReaderBase {
  public:
   V4L2Reader(aos::EventLoop *event_loop, const std::string &device_name);
-
- private:
-  const int rows_ = 480;
-  const int cols_ = 640;
 };
 
 // Rockpi specific v4l2 reader.  This assumes that the media device has been
@@ -148,6 +147,8 @@
                      const std::string &device_name,
                      const std::string &image_sensor_subdev);
 
+  ~RockchipV4L2Reader();
+
   void SetExposure(size_t duration) override;
 
   void SetGain(size_t gain);
diff --git a/y2022/BUILD b/y2022/BUILD
index aba165e..3d4dac3 100644
--- a/y2022/BUILD
+++ b/y2022/BUILD
@@ -217,6 +217,7 @@
         "//frc971/control_loops:pose",
         "//frc971/control_loops:static_zeroing_single_dof_profiled_subsystem",
         "//frc971/shooter_interpolation:interpolation",
+        "//frc971/wpilib:wpilib_utils",
         "//y2022/control_loops/drivetrain:polydrivetrain_plants",
         "//y2022/control_loops/superstructure/catapult:catapult_plants",
         "//y2022/control_loops/superstructure/climber:climber_plants",
diff --git a/y2022/constants.cc b/y2022/constants.cc
index e9aaa59..21ba9e4 100644
--- a/y2022/constants.cc
+++ b/y2022/constants.cc
@@ -10,6 +10,7 @@
 #include "absl/base/call_once.h"
 #include "aos/mutex/mutex.h"
 #include "aos/network/team_number.h"
+#include "frc971/wpilib/wpilib_utils.h"
 #include "glog/logging.h"
 #include "y2022/control_loops/superstructure/catapult/integral_catapult_plant.h"
 #include "y2022/control_loops/superstructure/climber/integral_climber_plant.h"
@@ -141,7 +142,7 @@
 
       {3.60, {0.39, 20.65}},
       {4.50, {0.44, 22.3}},
-      {4.9, {0.43, 22.75}}, // up to here
+      {4.9, {0.43, 22.75}},  // up to here
       {5.4, {0.43, 23.85}},
 
       {6.0, {0.42, 25.3}},
@@ -190,21 +191,21 @@
               {5, {4.0}},
           });
 
-      climber->potentiometer_offset = 0.0;
-      intake_front->potentiometer_offset = 0.0;
+      climber->potentiometer_offset = -0.035;
+      intake_front->potentiometer_offset = 3.122;
       intake_front->subsystem_params.zeroing_constants
-          .measured_absolute_position = 0.0;
-      intake_back->potentiometer_offset = 0.0;
+          .measured_absolute_position = 0.175;
+      intake_back->potentiometer_offset = 3.365;
       intake_back->subsystem_params.zeroing_constants
-          .measured_absolute_position = 0.0;
-      turret->potentiometer_offset = 0.0;
+          .measured_absolute_position = 0.051;
+      turret->potentiometer_offset = -7.932;
       turret->subsystem_params.zeroing_constants.measured_absolute_position =
-          0.0;
-      flipper_arm_left->potentiometer_offset = 0.0;
-      flipper_arm_right->potentiometer_offset = 0.0;
+          1.166;
+      flipper_arm_left->potentiometer_offset = -6.40;
+      flipper_arm_right->potentiometer_offset = 5.56;
 
       catapult_params->zeroing_constants.measured_absolute_position = 0.0;
-      catapult->potentiometer_offset = 0.0;
+      catapult->potentiometer_offset = -2.033;
 
       ball_color->reference_red = {0, 0, 1, 1};
       ball_color->reference_blue = {0, 0, 1, 1};
@@ -310,8 +311,10 @@
           .upper = 2.9         // Front Soft
       };
       turret_params->range = *turret_range;
-      flipper_arm_left->potentiometer_offset = -4.39536583413615 - 0.108401297910291;
-      flipper_arm_right->potentiometer_offset = 4.36264091401229 + 0.175896445665755;
+      flipper_arm_left->potentiometer_offset =
+          -4.39536583413615 - 0.108401297910291;
+      flipper_arm_right->potentiometer_offset =
+          4.36264091401229 + 0.175896445665755;
 
       catapult_params->zeroing_constants.measured_absolute_position =
           1.62909518684227;
@@ -361,6 +364,47 @@
       LOG(FATAL) << "unknown team: " << team;
   }
 
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      Values::kClimberRange(), climber->potentiometer_offset,
+      [](double meters) { return meters / Values::kClimberPotMetersPerVolt(); },
+      false))
+      << "Couldn't translate climber pot";
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      Values::kFlipperArmRange(), flipper_arm_left->potentiometer_offset,
+      [](double radians) {
+        return radians / Values::kFlipperArmsPotRadiansPerVolt();
+      },
+      false))
+      << "Couldn't translate flipper left pot";
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      Values::kFlipperArmRange(), flipper_arm_right->potentiometer_offset,
+      [](double radians) {
+        return radians / Values::kFlipperArmsPotRadiansPerVolt();
+      },
+      true))
+      << "Couldn't translate flipper right pot";
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      Values::kIntakeRange(), intake_front->potentiometer_offset,
+      [](double radians) {
+        return radians / Values::kIntakePotRadiansPerVolt();
+      },
+      true))
+      << "Couldn't translate front intake pot";
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      Values::kIntakeRange(), intake_back->potentiometer_offset,
+      [](double radians) {
+        return radians / Values::kIntakePotRadiansPerVolt();
+      },
+      true))
+      << "Couldn't translate back intake pot";
+  CHECK(frc971::wpilib::SafePotVoltageRange(
+      *turret_range, turret->potentiometer_offset,
+      [](double radians) {
+        return radians / Values::kTurretPotRadiansPerVolt();
+      },
+      false))
+      << "Couldn't translate turret pot";
+
   return r;
 }
 
diff --git a/y2022/constants.h b/y2022/constants.h
index 297f814..62b9b4a 100644
--- a/y2022/constants.h
+++ b/y2022/constants.h
@@ -58,6 +58,11 @@
   }
   static constexpr double kClimberPotRatio() { return 1.0; }
 
+  static constexpr double kClimberPotMetersPerVolt() {
+    return kClimberPotRatio() * (5.0 /*turns*/ / 5.0 /*volts*/) *
+           kClimberPotMetersPerRevolution();
+  }
+
   struct PotConstants {
     ::frc971::control_loops::StaticZeroingSingleDOFProfiledSubsystemParams<
         ::frc971::zeroing::RelativeEncoderZeroingEstimator>
@@ -77,6 +82,11 @@
 
   static constexpr double kIntakePotRatio() { return 16.0 / 64.0; }
 
+  static constexpr double kIntakePotRadiansPerVolt() {
+    return kIntakePotRatio() * (3.0 /*turns*/ / 5.0 /*volts*/) *
+           (2 * M_PI /*radians*/);
+  }
+
   static constexpr double kMaxIntakeEncoderPulsesPerSecond() {
     return control_loops::superstructure::intake::kFreeSpeed / (2.0 * M_PI) *
            control_loops::superstructure::intake::kOutputRatio /
@@ -121,6 +131,10 @@
   static constexpr double kTurretFrontIntakePos() { return 0; }
 
   static constexpr double kTurretPotRatio() { return 27.0 / 110.0; }
+  static constexpr double kTurretPotRadiansPerVolt() {
+    return kTurretPotRatio() * (10.0 /*turns*/ / 5.0 /*volts*/) *
+           (2 * M_PI /*radians*/);
+  }
   static constexpr double kTurretEncoderRatio() { return kTurretPotRatio(); }
   static constexpr double kTurretEncoderCountsPerRevolution() { return 4096.0; }
 
@@ -175,6 +189,11 @@
 
   static constexpr double kFlipperArmsPotRatio() { return 16.0 / 36.0; }
 
+  static constexpr double kFlipperArmsPotRadiansPerVolt() {
+    return kFlipperArmsPotRatio() * (3.0 /*turns*/ / 5.0 /*volts*/) *
+           (2 * M_PI /*radians*/);
+  }
+
   PotConstants flipper_arm_left;
   PotConstants flipper_arm_right;
 
diff --git a/y2022/wpilib_interface.cc b/y2022/wpilib_interface.cc
index 84164bb..8df3a3a 100644
--- a/y2022/wpilib_interface.cc
+++ b/y2022/wpilib_interface.cc
@@ -82,24 +82,19 @@
 }
 
 double climber_pot_translate(double voltage) {
-  return voltage * Values::kClimberPotRatio() *
-         (5.0 /*turns*/ / 5.0 /*volts*/) *
-         Values::kClimberPotMetersPerRevolution();
+  return voltage * Values::kClimberPotMetersPerVolt();
 }
 
 double flipper_arms_pot_translate(double voltage) {
-  return voltage * Values::kFlipperArmsPotRatio() *
-         (3.0 /*turns*/ / 5.0 /*volts*/) * (2 * M_PI /*radians*/);
+  return voltage * Values::kFlipperArmsPotRadiansPerVolt();
 }
 
 double intake_pot_translate(double voltage) {
-  return voltage * Values::kIntakePotRatio() * (3.0 /*turns*/ / 5.0 /*volts*/) *
-         (2 * M_PI /*radians*/);
+  return voltage * Values::kIntakePotRadiansPerVolt();
 }
 
 double turret_pot_translate(double voltage) {
-  return voltage * Values::kTurretPotRatio() *
-         (10.0 /*turns*/ / 5.0 /*volts*/) * (2 * M_PI /*radians*/);
+  return voltage * Values::kTurretPotRadiansPerVolt();
 }
 
 constexpr double kMaxFastEncoderPulsesPerSecond =