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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (c) 1999-2002 Vojtech Pavlik */#ifndef _GAMEPORT_H#define _GAMEPORT_H
#include <linux/types.h>#include <linux/list.h>#include <linux/mutex.h>#include <linux/device.h>#include <linux/timer.h>#include <linux/slab.h>#include <uapi/linux/gameport.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 mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
struct device dev;
struct list_head node;};#define to_gameport_port(d) container_of(d, struct gameport, dev)
struct gameport_driver { const char *description;
int (*connect)(struct gameport *, struct gameport_driver *drv); int (*reconnect)(struct gameport *); void (*disconnect)(struct gameport *);
struct device_driver driver;
bool ignore;};#define to_gameport_driver(d) container_of_const(d, struct gameport_driver, driver)
int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode);void gameport_close(struct gameport *gameport);
#if IS_REACHABLE(CONFIG_GAMEPORT)
void __gameport_register_port(struct gameport *gameport, struct module *owner);/* use a define to avoid include chaining to get THIS_MODULE */#define gameport_register_port(gameport) \ __gameport_register_port(gameport, THIS_MODULE)
void gameport_unregister_port(struct gameport *gameport);
__printf(2, 3)void gameport_set_phys(struct gameport *gameport, const char *fmt, ...);
#else
static inline void gameport_register_port(struct gameport *gameport){ return;}
static inline void gameport_unregister_port(struct gameport *gameport){ return;}
static inline __printf(2, 3)void gameport_set_phys(struct gameport *gameport, const char *fmt, ...){ return;}
#endif
static inline struct gameport *gameport_allocate_port(void){ struct gameport *gameport = kzalloc_obj(struct gameport);
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){ strscpy(gameport->name, name, sizeof(gameport->name));}
/* * Use the following functions 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 functions to pin gameport's driver in process context */static inline int gameport_pin_driver(struct gameport *gameport){ return mutex_lock_interruptible(&gameport->drv_mutex);}
static inline void gameport_unpin_driver(struct gameport *gameport){ mutex_unlock(&gameport->drv_mutex);}
int __must_check __gameport_register_driver(struct gameport_driver *drv, struct module *owner, const char *mod_name);
/* use a define to avoid include chaining to get THIS_MODULE & friends */#define gameport_register_driver(drv) \ __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)
void gameport_unregister_driver(struct gameport_driver *drv);
/** * module_gameport_driver() - Helper macro for registering a gameport driver * @__gameport_driver: gameport_driver struct * * Helper macro for gameport drivers which do not do anything special in * module init/exit. This eliminates a lot of boilerplate. Each module may * only use this macro once, and calling it replaces module_init() and * module_exit(). */#define module_gameport_driver(__gameport_driver) \ module_driver(__gameport_driver, gameport_register_driver, \ gameport_unregister_driver)
static inline void gameport_trigger(struct gameport *gameport){ gameport->trigger(gameport);}
static inline unsigned char gameport_read(struct gameport *gameport){ return gameport->read(gameport);}
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