linux/drivers/input/joystick/spaceorb.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) 1999-2001 Vojtech Pavlik
 *
 *  Based on the work of:
 *	David Thompson
 */

/*
 * SpaceTec SpaceOrb 360 and Avenger 6dof controller driver for Linux
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/serio.h>

#define DRIVER_DESC …

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

/*
 * Constants.
 */

#define SPACEORB_MAX_LENGTH …

static int spaceorb_buttons[] = …;
static int spaceorb_axes[] = …;

/*
 * Per-Orb data.
 */

struct spaceorb { … };

static unsigned char spaceorb_xor[] = …;

static unsigned char *spaceorb_errors[] = …;

/*
 * spaceorb_process_packet() decodes packets the driver receives from the
 * SpaceOrb.
 */

static void spaceorb_process_packet(struct spaceorb *spaceorb)
{ … }

static irqreturn_t spaceorb_interrupt(struct serio *serio,
		unsigned char data, unsigned int flags)
{ … }

/*
 * spaceorb_disconnect() is the opposite of spaceorb_connect()
 */

static void spaceorb_disconnect(struct serio *serio)
{ … }

/*
 * spaceorb_connect() is the routine that is called when someone adds a
 * new serio device that supports SpaceOrb/Avenger protocol and registers
 * it as an input device.
 */

static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
{ … }

/*
 * The serio driver structure.
 */

static const struct serio_device_id spaceorb_serio_ids[] = …;

MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids);

static struct serio_driver spaceorb_drv = …;

module_serio_driver(…) …;