Fix incorrect high/low gear in joystick

Change-Id: I77710d2935a3e0a1d8a97da9ccbc21fa171ab31d
diff --git a/y2014/joystick_reader.cc b/y2014/joystick_reader.cc
index 137856f..d2d1375 100644
--- a/y2014/joystick_reader.cc
+++ b/y2014/joystick_reader.cc
@@ -35,7 +35,7 @@
 const ButtonLocation kDriveControlLoopEnable1(1, 7),
                      kDriveControlLoopEnable2(1, 11);
 const JoystickAxis kSteeringWheel(1, 1), kDriveThrottle(2, 2);
-const ButtonLocation kShiftHigh(2, 1), kShiftLow(2, 3);
+const ButtonLocation kShiftHigh(2, 3), kShiftLow(2, 1);
 const ButtonLocation kQuickTurn(1, 5);
 
 const ButtonLocation kCatch(3, 10);
@@ -241,10 +241,10 @@
              .Send()) {
       LOG(WARNING, "sending stick values failed\n");
     }
-    if (data.PosEdge(kShiftHigh)) {
+    if (data.PosEdge(kShiftLow)) {
       is_high_gear_ = false;
     }
-    if (data.PosEdge(kShiftLow)) {
+    if (data.PosEdge(kShiftHigh)) {
       is_high_gear_ = true;
     }
   }