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#ifndef _GAMEPORT_H
#define _GAMEPORT_H

/*
 *  Copyright (c) 1999-2002 Vojtech Pavlik
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#include <asm/io.h>
#include <linux/input.h>
#include <linux/list.h>

struct gameport;

struct gameport {

        void *private;  /* Private pointer for joystick drivers */
        void *driver;   /* Private pointer for gameport drivers */
        char *name;
        char *phys;

        struct input_id id;

        int io;
        int speed;
        int fuzz;

        void (*trigger)(struct gameport *);
        unsigned char (*read)(struct gameport *);
        int (*cooked_read)(struct gameport *, int *, int *);
        int (*calibrate)(struct gameport *, int *, int *);
        int (*open)(struct gameport *, int);
        void (*close)(struct gameport *);

        struct gameport_dev *dev;

        struct list_head node;
};

struct gameport_dev {

        void *private;
        char *name;

        void (*connect)(struct gameport *, struct gameport_dev *dev);
        void (*disconnect)(struct gameport *);

        struct list_head node;
};

int gameport_open(struct gameport *gameport, struct gameport_dev *dev, int mode);
void gameport_close(struct gameport *gameport);
void gameport_rescan(struct gameport *gameport);

#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
void gameport_register_port(struct gameport *gameport);
void gameport_unregister_port(struct gameport *gameport);
#else
static inline void gameport_register_port(struct gameport *gameport) { return; }
static inline void gameport_unregister_port(struct gameport *gameport) { return; }
#endif

void gameport_register_device(struct gameport_dev *dev);
void gameport_unregister_device(struct gameport_dev *dev);

#define GAMEPORT_MODE_DISABLED          0
#define GAMEPORT_MODE_RAW               1
#define GAMEPORT_MODE_COOKED            2

#define GAMEPORT_ID_VENDOR_ANALOG       0x0001
#define GAMEPORT_ID_VENDOR_MADCATZ      0x0002
#define GAMEPORT_ID_VENDOR_LOGITECH     0x0003
#define GAMEPORT_ID_VENDOR_CREATIVE     0x0004
#define GAMEPORT_ID_VENDOR_GENIUS       0x0005
#define GAMEPORT_ID_VENDOR_INTERACT     0x0006
#define GAMEPORT_ID_VENDOR_MICROSOFT    0x0007
#define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008
#define GAMEPORT_ID_VENDOR_GRAVIS       0x0009
#define GAMEPORT_ID_VENDOR_GUILLEMOT    0x000a

static __inline__ void gameport_trigger(struct gameport *gameport)
{
        if (gameport->trigger)
                gameport->trigger(gameport);
        else
                outb(0xff, gameport->io);
}

static __inline__ unsigned char gameport_read(struct gameport *gameport)
{
        if (gameport->read)
                return gameport->read(gameport);
        else
                return inb(gameport->io);
}

static __inline__ int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
        if (gameport->cooked_read)
                return gameport->cooked_read(gameport, axes, buttons);
        else
                return -1;
}

static __inline__ int gameport_calibrate(struct gameport *gameport, int *axes, int *max)
{
        if (gameport->calibrate)
                return gameport->calibrate(gameport, axes, max);
        else
                return -1;
}

static __inline__ int gameport_time(struct gameport *gameport, int time)
{
        return (time * gameport->speed) / 1000;
}

static __inline__ void wait_ms(unsigned int ms)
{
        set_current_state(TASK_UNINTERRUPTIBLE);
        schedule_timeout(1 + ms * HZ / 1000);
}

#endif