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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 LT |
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> |
1da177e4 LT |
18 | |
19 | struct 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 */ |
1da177e4 LT |
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 | ||
54 | struct 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 | ||
69 | int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); | |
70 | void gameport_close(struct gameport *gameport); | |
71 | void gameport_rescan(struct gameport *gameport); | |
72 | ||
668d1e60 AB |
73 | #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) |
74 | ||
1da177e4 LT |
75 | void __gameport_register_port(struct gameport *gameport, struct module *owner); |
76 | static inline void gameport_register_port(struct gameport *gameport) | |
77 | { | |
78 | __gameport_register_port(gameport, THIS_MODULE); | |
79 | } | |
80 | ||
81 | void gameport_unregister_port(struct gameport *gameport); | |
82 | ||
668d1e60 AB |
83 | void gameport_set_phys(struct gameport *gameport, const char *fmt, ...) |
84 | __attribute__ ((format (printf, 2, 3))); | |
85 | ||
86 | #else | |
87 | ||
88 | static inline void gameport_register_port(struct gameport *gameport) | |
89 | { | |
90 | return; | |
91 | } | |
92 | ||
93 | static inline void gameport_unregister_port(struct gameport *gameport) | |
94 | { | |
95 | return; | |
96 | } | |
97 | ||
98 | static inline void gameport_set_phys(struct gameport *gameport, | |
99 | const char *fmt, ...) | |
100 | { | |
101 | return; | |
102 | } | |
103 | ||
104 | #endif | |
105 | ||
1da177e4 LT |
106 | static inline struct gameport *gameport_allocate_port(void) |
107 | { | |
108 | struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL); | |
109 | ||
110 | return gameport; | |
111 | } | |
112 | ||
113 | static inline void gameport_free_port(struct gameport *gameport) | |
114 | { | |
115 | kfree(gameport); | |
116 | } | |
117 | ||
118 | static 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 |
1da177e4 LT |
125 | * driver-specific data. |
126 | */ | |
127 | static inline void *gameport_get_drvdata(struct gameport *gameport) | |
128 | { | |
129 | return dev_get_drvdata(&gameport->dev); | |
130 | } | |
131 | ||
132 | static 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 |
1da177e4 LT |
139 | */ |
140 | static inline int gameport_pin_driver(struct gameport *gameport) | |
141 | { | |
286295eb | 142 | return mutex_lock_interruptible(&gameport->drv_mutex); |
1da177e4 LT |
143 | } |
144 | ||
145 | static inline void gameport_unpin_driver(struct gameport *gameport) | |
146 | { | |
286295eb | 147 | mutex_unlock(&gameport->drv_mutex); |
1da177e4 LT |
148 | } |
149 | ||
150 | void __gameport_register_driver(struct gameport_driver *drv, struct module *owner); | |
151 | static inline void gameport_register_driver(struct gameport_driver *drv) | |
152 | { | |
153 | __gameport_register_driver(drv, THIS_MODULE); | |
154 | } | |
155 | ||
156 | void gameport_unregister_driver(struct gameport_driver *drv); | |
157 | ||
25478bb2 DW |
158 | #endif /* __KERNEL__ */ |
159 | ||
1da177e4 LT |
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 DW |
175 | #ifdef __KERNEL__ |
176 | ||
1da177e4 LT |
177 | static 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 | ||
185 | static 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 | ||
193 | static 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 | ||
201 | static 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 | ||
209 | static inline int gameport_time(struct gameport *gameport, int time) | |
210 | { | |
211 | return (time * gameport->speed) / 1000; | |
212 | } | |
213 | ||
214 | static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) | |
215 | { | |
216 | gameport->poll_handler = handler; | |
217 | } | |
218 | ||
219 | static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) | |
220 | { | |
221 | gameport->poll_interval = msecs; | |
222 | } | |
223 | ||
224 | void gameport_start_polling(struct gameport *gameport); | |
225 | void gameport_stop_polling(struct gameport *gameport); | |
226 | ||
25478bb2 | 227 | #endif /* __KERNEL__ */ |
1da177e4 | 228 | #endif |