This source file includes following definitions.
- __printf
- gameport_unregister_port
- __printf
- gameport_allocate_port
- gameport_free_port
- gameport_set_name
- gameport_get_drvdata
- gameport_set_drvdata
- gameport_pin_driver
- gameport_unpin_driver
- gameport_trigger
- gameport_read
- gameport_cooked_read
- gameport_calibrate
- gameport_time
- gameport_set_poll_handler
- gameport_set_poll_interval
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4
5 #ifndef _GAMEPORT_H
6 #define _GAMEPORT_H
7
8 #include <asm/io.h>
9 #include <linux/types.h>
10 #include <linux/list.h>
11 #include <linux/mutex.h>
12 #include <linux/device.h>
13 #include <linux/timer.h>
14 #include <linux/slab.h>
15 #include <uapi/linux/gameport.h>
16
17 struct gameport {
18
19 void *port_data;
20 char name[32];
21 char phys[32];
22
23 int io;
24 int speed;
25 int fuzz;
26
27 void (*trigger)(struct gameport *);
28 unsigned char (*read)(struct gameport *);
29 int (*cooked_read)(struct gameport *, int *, int *);
30 int (*calibrate)(struct gameport *, int *, int *);
31 int (*open)(struct gameport *, int);
32 void (*close)(struct gameport *);
33
34 struct timer_list poll_timer;
35 unsigned int poll_interval;
36 spinlock_t timer_lock;
37 unsigned int poll_cnt;
38 void (*poll_handler)(struct gameport *);
39
40 struct gameport *parent, *child;
41
42 struct gameport_driver *drv;
43 struct mutex drv_mutex;
44
45 struct device dev;
46
47 struct list_head node;
48 };
49 #define to_gameport_port(d) container_of(d, struct gameport, dev)
50
51 struct gameport_driver {
52 const char *description;
53
54 int (*connect)(struct gameport *, struct gameport_driver *drv);
55 int (*reconnect)(struct gameport *);
56 void (*disconnect)(struct gameport *);
57
58 struct device_driver driver;
59
60 bool ignore;
61 };
62 #define to_gameport_driver(d) container_of(d, struct gameport_driver, driver)
63
64 int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode);
65 void gameport_close(struct gameport *gameport);
66
67 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
68
69 void __gameport_register_port(struct gameport *gameport, struct module *owner);
70
71 #define gameport_register_port(gameport) \
72 __gameport_register_port(gameport, THIS_MODULE)
73
74 void gameport_unregister_port(struct gameport *gameport);
75
76 __printf(2, 3)
77 void gameport_set_phys(struct gameport *gameport, const char *fmt, ...);
78
79 #else
80
81 static inline void gameport_register_port(struct gameport *gameport)
82 {
83 return;
84 }
85
86 static inline void gameport_unregister_port(struct gameport *gameport)
87 {
88 return;
89 }
90
91 static inline __printf(2, 3)
92 void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
93 {
94 return;
95 }
96
97 #endif
98
99 static inline struct gameport *gameport_allocate_port(void)
100 {
101 struct gameport *gameport = kzalloc(sizeof(struct gameport), GFP_KERNEL);
102
103 return gameport;
104 }
105
106 static inline void gameport_free_port(struct gameport *gameport)
107 {
108 kfree(gameport);
109 }
110
111 static inline void gameport_set_name(struct gameport *gameport, const char *name)
112 {
113 strlcpy(gameport->name, name, sizeof(gameport->name));
114 }
115
116
117
118
119
120 static inline void *gameport_get_drvdata(struct gameport *gameport)
121 {
122 return dev_get_drvdata(&gameport->dev);
123 }
124
125 static inline void gameport_set_drvdata(struct gameport *gameport, void *data)
126 {
127 dev_set_drvdata(&gameport->dev, data);
128 }
129
130
131
132
133 static inline int gameport_pin_driver(struct gameport *gameport)
134 {
135 return mutex_lock_interruptible(&gameport->drv_mutex);
136 }
137
138 static inline void gameport_unpin_driver(struct gameport *gameport)
139 {
140 mutex_unlock(&gameport->drv_mutex);
141 }
142
143 int __must_check __gameport_register_driver(struct gameport_driver *drv,
144 struct module *owner, const char *mod_name);
145
146
147 #define gameport_register_driver(drv) \
148 __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)
149
150 void gameport_unregister_driver(struct gameport_driver *drv);
151
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159
160
161 #define module_gameport_driver(__gameport_driver) \
162 module_driver(__gameport_driver, gameport_register_driver, \
163 gameport_unregister_driver)
164
165
166 static inline void gameport_trigger(struct gameport *gameport)
167 {
168 if (gameport->trigger)
169 gameport->trigger(gameport);
170 else
171 outb(0xff, gameport->io);
172 }
173
174 static inline unsigned char gameport_read(struct gameport *gameport)
175 {
176 if (gameport->read)
177 return gameport->read(gameport);
178 else
179 return inb(gameport->io);
180 }
181
182 static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
183 {
184 if (gameport->cooked_read)
185 return gameport->cooked_read(gameport, axes, buttons);
186 else
187 return -1;
188 }
189
190 static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max)
191 {
192 if (gameport->calibrate)
193 return gameport->calibrate(gameport, axes, max);
194 else
195 return -1;
196 }
197
198 static inline int gameport_time(struct gameport *gameport, int time)
199 {
200 return (time * gameport->speed) / 1000;
201 }
202
203 static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *))
204 {
205 gameport->poll_handler = handler;
206 }
207
208 static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs)
209 {
210 gameport->poll_interval = msecs;
211 }
212
213 void gameport_start_polling(struct gameport *gameport);
214 void gameport_stop_polling(struct gameport *gameport);
215
216 #endif