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diff --git a/sdl2/input/game-controller.scm b/sdl2/input/game-controller.scm
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+;;; guile-sdl2 --- FFI bindings for SDL2
+;;; Copyright © 2016 David Thompson <davet@gnu.org>
+;;;
+;;; This file is part of guile-sdl2.
+;;;
+;;; Guile-sdl2 is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU Lesser General Public License as
+;;; published by the Free Software Foundation; either version 3 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; Guile-sdl2 is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public
+;;; License along with guile-sdl2.  If not, see
+;;; <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Joystick input.
+;;
+;;; Code:
+
+(define-module (sdl2 input game-controller)
+  #:use-module (ice-9 match)
+  #:use-module (srfi srfi-9)
+  #:use-module (srfi srfi-9 gnu)
+  #:use-module (system foreign)
+  #:use-module ((sdl2 bindings) #:prefix ffi:)
+  #:use-module (sdl2)
+  #:export (open-game-controller
+            close-game-controller
+            game-controller?
+            game-controller-attached?
+            game-controller-joystick
+            game-controller-name
+            game-controller-axis
+            game-controller-button-pressed?
+            game-controller-index?))
+
+(define-wrapped-pointer-type <game-controller>
+  game-controller?
+  wrap-game-controller unwrap-game-controller
+  (lambda (game-controller port)
+    (format port "#<game-controller ~a>"
+            (game-controller-name game-controller))))
+
+(define-record-type <game-controller>
+  (make-game-controller pointer joystick)
+  game-controller?
+  (pointer unwrap-game-controller)
+  (joystick %game-controller-joystick))
+
+(set-record-type-printer! <game-controller>
+                          (lambda (game-controller port)
+                            (format port "#<game-controller ~s>"
+                                    (game-controller-name game-controller))))
+
+(define wrap-joystick (@@ (sdl2 input joystick) wrap-joystick))
+
+(define (open-game-controller joystick-index)
+  "Return a game controller object for the physical joystick device
+associated with ."
+  (let ((ptr (ffi:sdl-game-controller-open joystick-index)))
+    (if (null-pointer? ptr)
+        (sdl-error "open-game-controller" "failed to open game controller")
+        (let ((joystick (wrap-joystick
+                         (ffi:sdl-game-controller-get-joystick ptr))))
+         (make-game-controller ptr joystick)))))
+
+(define (close-game-controller controller)
+  "Close CONTROLLER."
+  (ffi:sdl-game-controller-close (unwrap-game-controller controller)))
+
+(define (game-controller-joystick controller)
+  "Return the underlying joystick object associated with CONTROLLER."
+  (%game-controller-joystick controller))
+
+(define (game-controller-attached? controller)
+  "Return #t if CONTROLLER is currently in use."
+  (= (ffi:sdl-game-controller-get-attached (unwrap-game-controller controller)) 1))
+
+(define (game-controller-name controller)
+  "Return the human readable name for CONTROLLER."
+  (pointer->string (ffi:sdl-game-controller-name (unwrap-game-controller controller))))
+
+(define (axis-symbol->int axis)
+  (match axis
+    ('left-x ffi:SDL_CONTROLLER_AXIS_LEFTX)
+    ('left-y ffi:SDL_CONTROLLER_AXIS_LEFTY)
+    ('right-x ffi:SDL_CONTROLLER_AXIS_RIGHTX)
+    ('right-x ffi:SDL_CONTROLLER_AXIS_RIGHTY)
+    ('trigger-left ffi:SDL_CONTROLLER_AXIS_TRIGGERLEFT)
+    ('trigger-right ffi:SDL_CONTROLLER_AXIS_TRIGGERRIGHT)))
+
+(define (game-controller-axis controller axis)
+  "Return a number in the range [-32768, 32767] representing the
+current state of AXIS on CONTROLLER.
+
+AXIS may be one of the following symbols:
+- left-x
+- left-y
+- right-x
+- right-y
+- trigger-left
+- trigger-right"
+  (ffi:sdl-game-controller-get-axis (unwrap-game-controller controller)
+                                    (axis-symbol->int axis)))
+
+(define (button-symbol->int button)
+  (match button
+    ('a ffi:SDL_CONTROLLER_BUTTON_A)
+    ('b ffi:SDL_CONTROLLER_BUTTON_B)
+    ('x ffi:SDL_CONTROLLER_BUTTON_X)
+    ('y ffi:SDL_CONTROLLER_BUTTON_Y)
+    ('back ffi:SDL_CONTROLLER_BUTTON_BACK)
+    ('guide ffi:SDL_CONTROLLER_BUTTON_GUIDE)
+    ('start ffi:SDL_CONTROLLER_BUTTON_START)
+    ('left-stick ffi:SDL_CONTROLLER_BUTTON_LEFTSTICK)
+    ('right-stick ffi:SDL_CONTROLLER_BUTTON_RIGHTSTICK)
+    ('left-shoulder ffi:SDL_CONTROLLER_BUTTON_LEFTSHOULDER)
+    ('right-shoulder ffi:SDL_CONTROLLER_BUTTON_RIGHTSHOULDER)
+    ('dpad-up ffi:SDL_CONTROLLER_BUTTON_DPAD_UP)
+    ('dpad-down ffi:SDL_CONTROLLER_BUTTON_DPAD_DOWN)
+    ('dpad-left ffi:SDL_CONTROLLER_BUTTON_DPAD_LEFT)
+    ('dpad-right ffi:SDL_CONTROLLER_BUTTON_DPAD_RIGHT)))
+
+(define (game-controller-button-pressed? controller button)
+  "Return #t if BUTTON is pressed on CONTROLLER.
+
+BUTTON may be one of the following symbols:
+- a
+- b
+- x
+- y
+- back
+- guide
+- start
+- left-stick
+- right-stick
+- left-shoulder
+- right-shoulder
+- dpad-up
+- dpad-down
+- dpad-left
+- dpad-right"
+  (= (ffi:sdl-game-controller-get-button (unwrap-game-controller controller)
+                                         (button-symbol->int button))
+     1))
+
+(define (game-controller-index? joystick-index)
+  "Return #t if JOYSTICK-INDEX is a valid game controller index."
+  (= (ffi:sdl-is-game-controller joystick-index) 1))