Split joystick_reader into hardware shim + application.

Change-Id: If31e6dd7ece547a2952ec21e2f4bc745ee6f9d84
diff --git a/aos/common/input/driver_station_data.cc b/aos/common/input/driver_station_data.cc
index 18b3403..d97601a 100644
--- a/aos/common/input/driver_station_data.cc
+++ b/aos/common/input/driver_station_data.cc
@@ -6,7 +6,7 @@
 
 Data::Data() : current_values_(), old_values_() {}
 
-void Data::Update(const NetworkRobotJoysticks &new_values) {
+void Data::Update(const RobotState &new_values) {
   old_values_ = current_values_;
   current_values_ = new_values;
 }
@@ -14,22 +14,22 @@
 namespace {
 
 bool GetButton(const ButtonLocation location,
-               const NetworkRobotJoysticks &values) {
+               const RobotState &values) {
   return values.joysticks[location.joystick() - 1].buttons &
       (1 << (location.number() - 1));
 }
 
 bool GetControlBitValue(const ControlBit bit,
-                        const NetworkRobotJoysticks &values) {
+                        const RobotState &values) {
   switch (bit) {
     case ControlBit::kTestMode:
-      return values.control.test_mode();
+      return values.test_mode;
     case ControlBit::kFmsAttached:
-      return values.control.fms_attached();
+      return values.fms_attached;
     case ControlBit::kAutonomous:
-      return values.control.autonomous();
+      return values.autonomous;
     case ControlBit::kEnabled:
-      return values.control.enabled();
+      return values.enabled;
     default:
       __builtin_unreachable();
   }
@@ -66,9 +66,7 @@
 }
 
 float Data::GetAxis(JoystickAxis axis) const {
-  // TODO(brians): check this math against what our joysticks report as their
-  // logical minimums and maximums
-  return current_values_.joysticks[axis.joystick() - 1].axes[axis.number() - 1] / 127.0;
+  return current_values_.joysticks[axis.joystick() - 1].axis[axis.number() - 1];
 }
 
 }  // namespace driver_station
diff --git a/aos/common/input/driver_station_data.h b/aos/common/input/driver_station_data.h
index 4bef0b6..a8a9ddf 100644
--- a/aos/common/input/driver_station_data.h
+++ b/aos/common/input/driver_station_data.h
@@ -6,7 +6,7 @@
 
 #include <memory>
 
-#include "aos/externals/WPILib/WPILib/NetworkRobot/NetworkRobotValues.h"
+#include "aos/common/messages/robot_state.q.h"
 
 namespace aos {
 namespace input {
@@ -20,8 +20,8 @@
       : joystick_(joystick), number_(number) {}
 
   // How many joysticks there are.
-  static const int kJoysticks = sizeof(NetworkRobotJoysticks::joysticks) /
-                                sizeof(NetworkRobotJoysticks::joysticks[0]);
+  static const int kJoysticks = sizeof(RobotState::joysticks) /
+                                sizeof(RobotState::joysticks[0]);
 
   // Which joystick number this is (1-based).
   int joystick() const { return joystick_; }
@@ -59,8 +59,8 @@
       : JoystickFeature(joystick, number) {}
 
   // How many axes there are available on each joystick.
-  static const int kAxes = sizeof(NetworkRobotJoysticks::Joystick::axes) /
-                           sizeof(NetworkRobotJoysticks::Joystick::axes[0]);
+  static const int kAxes = sizeof(Joystick::axis) /
+                           sizeof(Joystick::axis[0]);
 };
 
 class Data {
@@ -70,7 +70,7 @@
   Data();
 
   // Updates the current information with a new set of values.
-  void Update(const NetworkRobotJoysticks &new_values);
+  void Update(const RobotState &new_values);
 
   bool IsPressed(ButtonLocation location) const;
   bool PosEdge(ButtonLocation location) const;
@@ -84,7 +84,7 @@
   float GetAxis(JoystickAxis axis) const;
 
  private:
-  NetworkRobotJoysticks current_values_, old_values_;
+  RobotState current_values_, old_values_;
 };
 
 }  // namespace driver_station
diff --git a/aos/common/input/input.gyp b/aos/common/input/input.gyp
index e5c964c..7d5af30 100644
--- a/aos/common/input/input.gyp
+++ b/aos/common/input/input.gyp
@@ -8,9 +8,11 @@
       ],
       'dependencies': [
         '<(EXTERNALS):WPILib-NetworkRobotValues',
+        '<(AOS)/common/messages/messages.gyp:robot_state',
       ],
       'export_dependent_settings': [
         '<(EXTERNALS):WPILib-NetworkRobotValues',
+        '<(AOS)/common/messages/messages.gyp:robot_state',
       ],
     },
   ],