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1da177e4
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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
25478bb2 12#ifdef __KERNEL__
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13#include <asm/io.h>
14#include <linux/list.h>
286295eb 15#include <linux/mutex.h>
1da177e4 16#include <linux/device.h>
4e57b681 17#include <linux/timer.h>
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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;
286295eb 45 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
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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
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73#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
74
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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
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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
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106static inline struct gameport *gameport_allocate_port(void)
107{
cd861280 108 struct gameport *gameport = kzalloc(sizeof(struct gameport), GFP_KERNEL);
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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
1da177e4 123/*
0b28002f 124 * Use the following functions to manipulate gameport's per-port
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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/*
0b28002f 138 * Use the following functions to pin gameport's driver in process context
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139 */
140static inline int gameport_pin_driver(struct gameport *gameport)
141{
286295eb 142 return mutex_lock_interruptible(&gameport->drv_mutex);
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143}
144
145static inline void gameport_unpin_driver(struct gameport *gameport)
146{
286295eb 147 mutex_unlock(&gameport->drv_mutex);
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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
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158#endif /* __KERNEL__ */
159
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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
25478bb2
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175#ifdef __KERNEL__
176
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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
25478bb2 227#endif /* __KERNEL__ */
1da177e4 228#endif