linux/drivers/input/joystick/turbografx.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) 1998-2001 Vojtech Pavlik
 *
 *  Based on the work of:
 *	Steffen Schwenke
 */

/*
 * TurboGraFX parallel port interface driver for Linux.
 */

#include <linux/kernel.h>
#include <linux/parport.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/slab.h>

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

#define TGFX_MAX_PORTS …
#define TGFX_MAX_DEVICES …

struct tgfx_config { … };

static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS];

module_param_array_named(…);
MODULE_PARM_DESC(…) …;
module_param_array_named(…);
MODULE_PARM_DESC(…) …;
module_param_array_named(…);
MODULE_PARM_DESC(…) …;

#define TGFX_REFRESH_TIME …

#define TGFX_TRIGGER …
#define TGFX_UP …
#define TGFX_DOWN …
#define TGFX_LEFT …
#define TGFX_RIGHT …

#define TGFX_THUMB …
#define TGFX_THUMB2 …
#define TGFX_TOP …
#define TGFX_TOP2 …

static int tgfx_buttons[] = …;

static struct tgfx { … } *tgfx_base[TGFX_MAX_PORTS];

/*
 * tgfx_timer() reads and analyzes TurboGraFX joystick data.
 */

static void tgfx_timer(struct timer_list *t)
{ … }

static int tgfx_open(struct input_dev *dev)
{ … }

static void tgfx_close(struct input_dev *dev)
{ … }



/*
 * tgfx_probe() probes for tg gamepads.
 */

static void tgfx_attach(struct parport *pp)
{ … }

static void tgfx_detach(struct parport *port)
{ … }

static struct parport_driver tgfx_parport_driver = …;

static int __init tgfx_init(void)
{ … }

static void __exit tgfx_exit(void)
{ … }

module_init(…) …;
module_exit(tgfx_exit);