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1da177e4 LT |
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__ |
1da177e4 | 13 | #include <asm/io.h> |
7e044e05 | 14 | #include <linux/types.h> |
1da177e4 | 15 | #include <linux/list.h> |
286295eb | 16 | #include <linux/mutex.h> |
1da177e4 | 17 | #include <linux/device.h> |
4e57b681 | 18 | #include <linux/timer.h> |
5a0e3ad6 | 19 | #include <linux/slab.h> |
1da177e4 LT |
20 | |
21 | struct gameport { | |
22 | ||
23 | void *port_data; /* Private pointer for gameport drivers */ | |
24 | char name[32]; | |
25 | char phys[32]; | |
26 | ||
27 | int io; | |
28 | int speed; | |
29 | int fuzz; | |
30 | ||
31 | void (*trigger)(struct gameport *); | |
32 | unsigned char (*read)(struct gameport *); | |
33 | int (*cooked_read)(struct gameport *, int *, int *); | |
34 | int (*calibrate)(struct gameport *, int *, int *); | |
35 | int (*open)(struct gameport *, int); | |
36 | void (*close)(struct gameport *); | |
37 | ||
38 | struct timer_list poll_timer; | |
39 | unsigned int poll_interval; /* in msecs */ | |
40 | spinlock_t timer_lock; | |
41 | unsigned int poll_cnt; | |
42 | void (*poll_handler)(struct gameport *); | |
43 | ||
44 | struct gameport *parent, *child; | |
45 | ||
46 | struct gameport_driver *drv; | |
286295eb | 47 | struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ |
1da177e4 LT |
48 | |
49 | struct device dev; | |
1da177e4 LT |
50 | |
51 | struct list_head node; | |
52 | }; | |
53 | #define to_gameport_port(d) container_of(d, struct gameport, dev) | |
54 | ||
55 | struct gameport_driver { | |
37b0bb11 | 56 | const char *description; |
1da177e4 LT |
57 | |
58 | int (*connect)(struct gameport *, struct gameport_driver *drv); | |
59 | int (*reconnect)(struct gameport *); | |
60 | void (*disconnect)(struct gameport *); | |
61 | ||
62 | struct device_driver driver; | |
63 | ||
7e044e05 | 64 | bool ignore; |
1da177e4 LT |
65 | }; |
66 | #define to_gameport_driver(d) container_of(d, struct gameport_driver, driver) | |
67 | ||
68 | int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); | |
69 | void gameport_close(struct gameport *gameport); | |
1da177e4 | 70 | |
668d1e60 AB |
71 | #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) |
72 | ||
1da177e4 LT |
73 | void __gameport_register_port(struct gameport *gameport, struct module *owner); |
74 | static inline void gameport_register_port(struct gameport *gameport) | |
75 | { | |
76 | __gameport_register_port(gameport, THIS_MODULE); | |
77 | } | |
78 | ||
79 | void gameport_unregister_port(struct gameport *gameport); | |
80 | ||
668d1e60 AB |
81 | void gameport_set_phys(struct gameport *gameport, const char *fmt, ...) |
82 | __attribute__ ((format (printf, 2, 3))); | |
83 | ||
84 | #else | |
85 | ||
86 | static inline void gameport_register_port(struct gameport *gameport) | |
87 | { | |
88 | return; | |
89 | } | |
90 | ||
91 | static inline void gameport_unregister_port(struct gameport *gameport) | |
92 | { | |
93 | return; | |
94 | } | |
95 | ||
96 | static inline void gameport_set_phys(struct gameport *gameport, | |
97 | const char *fmt, ...) | |
98 | { | |
99 | return; | |
100 | } | |
101 | ||
102 | #endif | |
103 | ||
1da177e4 LT |
104 | static inline struct gameport *gameport_allocate_port(void) |
105 | { | |
cd861280 | 106 | struct gameport *gameport = kzalloc(sizeof(struct gameport), GFP_KERNEL); |
1da177e4 LT |
107 | |
108 | return gameport; | |
109 | } | |
110 | ||
111 | static inline void gameport_free_port(struct gameport *gameport) | |
112 | { | |
113 | kfree(gameport); | |
114 | } | |
115 | ||
116 | static inline void gameport_set_name(struct gameport *gameport, const char *name) | |
117 | { | |
118 | strlcpy(gameport->name, name, sizeof(gameport->name)); | |
119 | } | |
120 | ||
1da177e4 | 121 | /* |
0b28002f | 122 | * Use the following functions to manipulate gameport's per-port |
1da177e4 LT |
123 | * driver-specific data. |
124 | */ | |
125 | static inline void *gameport_get_drvdata(struct gameport *gameport) | |
126 | { | |
127 | return dev_get_drvdata(&gameport->dev); | |
128 | } | |
129 | ||
130 | static inline void gameport_set_drvdata(struct gameport *gameport, void *data) | |
131 | { | |
132 | dev_set_drvdata(&gameport->dev, data); | |
133 | } | |
134 | ||
135 | /* | |
0b28002f | 136 | * Use the following functions to pin gameport's driver in process context |
1da177e4 LT |
137 | */ |
138 | static inline int gameport_pin_driver(struct gameport *gameport) | |
139 | { | |
286295eb | 140 | return mutex_lock_interruptible(&gameport->drv_mutex); |
1da177e4 LT |
141 | } |
142 | ||
143 | static inline void gameport_unpin_driver(struct gameport *gameport) | |
144 | { | |
286295eb | 145 | mutex_unlock(&gameport->drv_mutex); |
1da177e4 LT |
146 | } |
147 | ||
6902c0be DT |
148 | int __gameport_register_driver(struct gameport_driver *drv, |
149 | struct module *owner, const char *mod_name); | |
8c4b3c29 | 150 | static inline int __must_check gameport_register_driver(struct gameport_driver *drv) |
1da177e4 | 151 | { |
6902c0be | 152 | return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); |
1da177e4 LT |
153 | } |
154 | ||
155 | void gameport_unregister_driver(struct gameport_driver *drv); | |
156 | ||
25478bb2 DW |
157 | #endif /* __KERNEL__ */ |
158 | ||
1da177e4 LT |
159 | #define GAMEPORT_MODE_DISABLED 0 |
160 | #define GAMEPORT_MODE_RAW 1 | |
161 | #define GAMEPORT_MODE_COOKED 2 | |
162 | ||
163 | #define GAMEPORT_ID_VENDOR_ANALOG 0x0001 | |
164 | #define GAMEPORT_ID_VENDOR_MADCATZ 0x0002 | |
165 | #define GAMEPORT_ID_VENDOR_LOGITECH 0x0003 | |
166 | #define GAMEPORT_ID_VENDOR_CREATIVE 0x0004 | |
167 | #define GAMEPORT_ID_VENDOR_GENIUS 0x0005 | |
168 | #define GAMEPORT_ID_VENDOR_INTERACT 0x0006 | |
169 | #define GAMEPORT_ID_VENDOR_MICROSOFT 0x0007 | |
170 | #define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008 | |
171 | #define GAMEPORT_ID_VENDOR_GRAVIS 0x0009 | |
172 | #define GAMEPORT_ID_VENDOR_GUILLEMOT 0x000a | |
173 | ||
25478bb2 DW |
174 | #ifdef __KERNEL__ |
175 | ||
1da177e4 LT |
176 | static inline void gameport_trigger(struct gameport *gameport) |
177 | { | |
178 | if (gameport->trigger) | |
179 | gameport->trigger(gameport); | |
180 | else | |
181 | outb(0xff, gameport->io); | |
182 | } | |
183 | ||
184 | static inline unsigned char gameport_read(struct gameport *gameport) | |
185 | { | |
186 | if (gameport->read) | |
187 | return gameport->read(gameport); | |
188 | else | |
189 | return inb(gameport->io); | |
190 | } | |
191 | ||
192 | static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons) | |
193 | { | |
194 | if (gameport->cooked_read) | |
195 | return gameport->cooked_read(gameport, axes, buttons); | |
196 | else | |
197 | return -1; | |
198 | } | |
199 | ||
200 | static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max) | |
201 | { | |
202 | if (gameport->calibrate) | |
203 | return gameport->calibrate(gameport, axes, max); | |
204 | else | |
205 | return -1; | |
206 | } | |
207 | ||
208 | static inline int gameport_time(struct gameport *gameport, int time) | |
209 | { | |
210 | return (time * gameport->speed) / 1000; | |
211 | } | |
212 | ||
213 | static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) | |
214 | { | |
215 | gameport->poll_handler = handler; | |
216 | } | |
217 | ||
218 | static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) | |
219 | { | |
220 | gameport->poll_interval = msecs; | |
221 | } | |
222 | ||
223 | void gameport_start_polling(struct gameport *gameport); | |
224 | void gameport_stop_polling(struct gameport *gameport); | |
225 | ||
25478bb2 | 226 | #endif /* __KERNEL__ */ |
1da177e4 | 227 | #endif |