1#ifndef _GAMEPORT_H 2#define _GAMEPORT_H 3 4/* 5 * Copyright (c) 1999-2002 Vojtech Pavlik 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published by 9 * the Free Software Foundation. 10 */ 11 12#ifdef __KERNEL__ 13#include <asm/io.h> 14#include <linux/list.h> 15#include <linux/mutex.h> 16#include <linux/device.h> 17#include <linux/timer.h> 18 19struct gameport { 20 21 void *port_data; /* Private pointer for gameport drivers */ 22 char name[32]; 23 char phys[32]; 24 25 int io; 26 int speed; 27 int fuzz; 28 29 void (*trigger)(struct gameport *); 30 unsigned char (*read)(struct gameport *); 31 int (*cooked_read)(struct gameport *, int *, int *); 32 int (*calibrate)(struct gameport *, int *, int *); 33 int (*open)(struct gameport *, int); 34 void (*close)(struct gameport *); 35 36 struct timer_list poll_timer; 37 unsigned int poll_interval; /* in msecs */ 38 spinlock_t timer_lock; 39 unsigned int poll_cnt; 40 void (*poll_handler)(struct gameport *); 41 42 struct gameport *parent, *child; 43 44 struct gameport_driver *drv; 45 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ 46 47 struct device dev; 48 unsigned int registered; /* port has been fully registered with driver core */ 49 50 struct list_head node; 51}; 52#define to_gameport_port(d) container_of(d, struct gameport, dev) 53 54struct gameport_driver { 55 56 void *private; 57 char *description; 58 59 int (*connect)(struct gameport *, struct gameport_driver *drv); 60 int (*reconnect)(struct gameport *); 61 void (*disconnect)(struct gameport *); 62 63 struct device_driver driver; 64 65 unsigned int ignore; 66}; 67#define to_gameport_driver(d) container_of(d, struct gameport_driver, driver) 68 69int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); 70void gameport_close(struct gameport *gameport); 71void gameport_rescan(struct gameport *gameport); 72 73#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) 74 75void __gameport_register_port(struct gameport *gameport, struct module *owner); 76static inline void gameport_register_port(struct gameport *gameport) 77{ 78 __gameport_register_port(gameport, THIS_MODULE); 79} 80 81void gameport_unregister_port(struct gameport *gameport); 82 83void gameport_set_phys(struct gameport *gameport, const char *fmt, ...) 84 __attribute__ ((format (printf, 2, 3))); 85 86#else 87 88static inline void gameport_register_port(struct gameport *gameport) 89{ 90 return; 91} 92 93static inline void gameport_unregister_port(struct gameport *gameport) 94{ 95 return; 96} 97 98static inline void gameport_set_phys(struct gameport *gameport, 99 const char *fmt, ...) 100{ 101 return; 102} 103 104#endif 105 106static inline struct gameport *gameport_allocate_port(void) 107{ 108 struct gameport *gameport = kzalloc(sizeof(struct gameport), GFP_KERNEL); 109 110 return gameport; 111} 112 113static inline void gameport_free_port(struct gameport *gameport) 114{ 115 kfree(gameport); 116} 117 118static inline void gameport_set_name(struct gameport *gameport, const char *name) 119{ 120 strlcpy(gameport->name, name, sizeof(gameport->name)); 121} 122 123/* 124 * Use the following functions to manipulate gameport's per-port 125 * driver-specific data. 126 */ 127static inline void *gameport_get_drvdata(struct gameport *gameport) 128{ 129 return dev_get_drvdata(&gameport->dev); 130} 131 132static inline void gameport_set_drvdata(struct gameport *gameport, void *data) 133{ 134 dev_set_drvdata(&gameport->dev, data); 135} 136 137/* 138 * Use the following functions to pin gameport's driver in process context 139 */ 140static inline int gameport_pin_driver(struct gameport *gameport) 141{ 142 return mutex_lock_interruptible(&gameport->drv_mutex); 143} 144 145static inline void gameport_unpin_driver(struct gameport *gameport) 146{ 147 mutex_unlock(&gameport->drv_mutex); 148} 149 150void __gameport_register_driver(struct gameport_driver *drv, struct module *owner); 151static inline void gameport_register_driver(struct gameport_driver *drv) 152{ 153 __gameport_register_driver(drv, THIS_MODULE); 154} 155 156void gameport_unregister_driver(struct gameport_driver *drv); 157 158#endif /* __KERNEL__ */ 159 160#define GAMEPORT_MODE_DISABLED 0 161#define GAMEPORT_MODE_RAW 1 162#define GAMEPORT_MODE_COOKED 2 163 164#define GAMEPORT_ID_VENDOR_ANALOG 0x0001 165#define GAMEPORT_ID_VENDOR_MADCATZ 0x0002 166#define GAMEPORT_ID_VENDOR_LOGITECH 0x0003 167#define GAMEPORT_ID_VENDOR_CREATIVE 0x0004 168#define GAMEPORT_ID_VENDOR_GENIUS 0x0005 169#define GAMEPORT_ID_VENDOR_INTERACT 0x0006 170#define GAMEPORT_ID_VENDOR_MICROSOFT 0x0007 171#define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008 172#define GAMEPORT_ID_VENDOR_GRAVIS 0x0009 173#define GAMEPORT_ID_VENDOR_GUILLEMOT 0x000a 174 175#ifdef __KERNEL__ 176 177static inline void gameport_trigger(struct gameport *gameport) 178{ 179 if (gameport->trigger) 180 gameport->trigger(gameport); 181 else 182 outb(0xff, gameport->io); 183} 184 185static inline unsigned char gameport_read(struct gameport *gameport) 186{ 187 if (gameport->read) 188 return gameport->read(gameport); 189 else 190 return inb(gameport->io); 191} 192 193static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons) 194{ 195 if (gameport->cooked_read) 196 return gameport->cooked_read(gameport, axes, buttons); 197 else 198 return -1; 199} 200 201static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max) 202{ 203 if (gameport->calibrate) 204 return gameport->calibrate(gameport, axes, max); 205 else 206 return -1; 207} 208 209static inline int gameport_time(struct gameport *gameport, int time) 210{ 211 return (time * gameport->speed) / 1000; 212} 213 214static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) 215{ 216 gameport->poll_handler = handler; 217} 218 219static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) 220{ 221 gameport->poll_interval = msecs; 222} 223 224void gameport_start_polling(struct gameport *gameport); 225void gameport_stop_polling(struct gameport *gameport); 226 227#endif /* __KERNEL__ */ 228#endif 229