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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/list.h>
#include <linux/device.h>
struct gameport {
void *port_data; /* Private pointer for gameport drivers */
char name[32];
char phys[32];
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 timer_list poll_timer;
unsigned int poll_interval; /* in msecs */
spinlock_t timer_lock;
unsigned int poll_cnt;
void (*poll_handler)(struct gameport *);
struct gameport *parent, *child;
struct gameport_driver *drv;
struct semaphore drv_sem; /* protects serio->drv so attributes can pin driver */
struct device dev;
unsigned int registered; /* port has been fully registered with driver core */
struct list_head node;
};
#define to_gameport_port(d) container_of(d, struct gameport, dev)
struct gameport_driver {
void *private;
char *description;
int (*connect)(struct gameport *, struct gameport_driver *drv);
int (*reconnect)(struct gameport *);
void (*disconnect)(struct gameport *);
struct device_driver driver;
unsigned int ignore;
};
#define to_gameport_driver(d) container_of(d, struct gameport_driver, driver)
int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode);
void gameport_close(struct gameport *gameport);
void gameport_rescan(struct gameport *gameport);
void __gameport_register_port(struct gameport *gameport, struct module *owner);
static inline void gameport_register_port(struct gameport *gameport)
{
__gameport_register_port(gameport, THIS_MODULE);
}
void gameport_unregister_port(struct gameport *gameport);
static inline struct gameport *gameport_allocate_port(void)
{
struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL);
return gameport;
}
static inline void gameport_free_port(struct gameport *gameport)
{
kfree(gameport);
}
static inline void gameport_set_name(struct gameport *gameport, const char *name)
{
strlcpy(gameport->name, name, sizeof(gameport->name));
}
void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
/*
* Use the following fucntions to manipulate gameport's per-port
* driver-specific data.
*/
static inline void *gameport_get_drvdata(struct gameport *gameport)
{
return dev_get_drvdata(&gameport->dev);
}
static inline void gameport_set_drvdata(struct gameport *gameport, void *data)
{
dev_set_drvdata(&gameport->dev, data);
}
/*
* Use the following fucntions to pin gameport's driver in process context
*/
static inline int gameport_pin_driver(struct gameport *gameport)
{
return down_interruptible(&gameport->drv_sem);
}
static inline void gameport_unpin_driver(struct gameport *gameport)
{
up(&gameport->drv_sem);
}
void __gameport_register_driver(struct gameport_driver *drv, struct module *owner);
static inline void gameport_register_driver(struct gameport_driver *drv)
{
__gameport_register_driver(drv, THIS_MODULE);
}
void gameport_unregister_driver(struct gameport_driver *drv);
#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 gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *))
{
gameport->poll_handler = handler;
}
static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs)
{
gameport->poll_interval = msecs;
}
void gameport_start_polling(struct gameport *gameport);
void gameport_stop_polling(struct gameport *gameport);
#endif
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