1#ifndef _GAMEPORT_H
2#define _GAMEPORT_H
3
4
5
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7
8
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10
11
12#ifdef __KERNEL__
13#include <asm/io.h>
14#include <linux/types.h>
15#include <linux/list.h>
16#include <linux/mutex.h>
17#include <linux/device.h>
18#include <linux/timer.h>
19
20struct gameport {
21
22 void *port_data;
23 char name[32];
24 char phys[32];
25
26 int io;
27 int speed;
28 int fuzz;
29
30 void (*trigger)(struct gameport *);
31 unsigned char (*read)(struct gameport *);
32 int (*cooked_read)(struct gameport *, int *, int *);
33 int (*calibrate)(struct gameport *, int *, int *);
34 int (*open)(struct gameport *, int);
35 void (*close)(struct gameport *);
36
37 struct timer_list poll_timer;
38 unsigned int poll_interval;
39 spinlock_t timer_lock;
40 unsigned int poll_cnt;
41 void (*poll_handler)(struct gameport *);
42
43 struct gameport *parent, *child;
44
45 struct gameport_driver *drv;
46 struct mutex drv_mutex;
47
48 struct device dev;
49 unsigned int registered;
50
51 struct list_head node;
52};
53#define to_gameport_port(d) container_of(d, struct gameport, dev)
54
55struct gameport_driver {
56
57 void *private;
58 char *description;
59
60 int (*connect)(struct gameport *, struct gameport_driver *drv);
61 int (*reconnect)(struct gameport *);
62 void (*disconnect)(struct gameport *);
63
64 struct device_driver driver;
65
66 bool ignore;
67};
68#define to_gameport_driver(d) container_of(d, struct gameport_driver, driver)
69
70int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode);
71void gameport_close(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
125
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
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
150int __gameport_register_driver(struct gameport_driver *drv,
151 struct module *owner, const char *mod_name);
152static inline int __must_check gameport_register_driver(struct gameport_driver *drv)
153{
154 return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME);
155}
156
157void gameport_unregister_driver(struct gameport_driver *drv);
158
159#endif
160
161#define GAMEPORT_MODE_DISABLED 0
162#define GAMEPORT_MODE_RAW 1
163#define GAMEPORT_MODE_COOKED 2
164
165#define GAMEPORT_ID_VENDOR_ANALOG 0x0001
166#define GAMEPORT_ID_VENDOR_MADCATZ 0x0002
167#define GAMEPORT_ID_VENDOR_LOGITECH 0x0003
168#define GAMEPORT_ID_VENDOR_CREATIVE 0x0004
169#define GAMEPORT_ID_VENDOR_GENIUS 0x0005
170#define GAMEPORT_ID_VENDOR_INTERACT 0x0006
171#define GAMEPORT_ID_VENDOR_MICROSOFT 0x0007
172#define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008
173#define GAMEPORT_ID_VENDOR_GRAVIS 0x0009
174#define GAMEPORT_ID_VENDOR_GUILLEMOT 0x000a
175
176#ifdef __KERNEL__
177
178static inline void gameport_trigger(struct gameport *gameport)
179{
180 if (gameport->trigger)
181 gameport->trigger(gameport);
182 else
183 outb(0xff, gameport->io);
184}
185
186static inline unsigned char gameport_read(struct gameport *gameport)
187{
188 if (gameport->read)
189 return gameport->read(gameport);
190 else
191 return inb(gameport->io);
192}
193
194static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
195{
196 if (gameport->cooked_read)
197 return gameport->cooked_read(gameport, axes, buttons);
198 else
199 return -1;
200}
201
202static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max)
203{
204 if (gameport->calibrate)
205 return gameport->calibrate(gameport, axes, max);
206 else
207 return -1;
208}
209
210static inline int gameport_time(struct gameport *gameport, int time)
211{
212 return (time * gameport->speed) / 1000;
213}
214
215static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *))
216{
217 gameport->poll_handler = handler;
218}
219
220static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs)
221{
222 gameport->poll_interval = msecs;
223}
224
225void gameport_start_polling(struct gameport *gameport);
226void gameport_stop_polling(struct gameport *gameport);
227
228#endif
229#endif
230