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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 | ||
12 | #include <asm/io.h> | |
13 | #include <linux/list.h> | |
14 | #include <linux/device.h> | |
4e57b681 | 15 | #include <linux/timer.h> |
1da177e4 LT |
16 | |
17 | struct gameport { | |
18 | ||
19 | void *port_data; /* Private pointer for gameport drivers */ | |
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; /* in msecs */ | |
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 semaphore drv_sem; /* protects serio->drv so attributes can pin driver */ | |
44 | ||
45 | struct device dev; | |
46 | unsigned int registered; /* port has been fully registered with driver core */ | |
47 | ||
48 | struct list_head node; | |
49 | }; | |
50 | #define to_gameport_port(d) container_of(d, struct gameport, dev) | |
51 | ||
52 | struct gameport_driver { | |
53 | ||
54 | void *private; | |
55 | char *description; | |
56 | ||
57 | int (*connect)(struct gameport *, struct gameport_driver *drv); | |
58 | int (*reconnect)(struct gameport *); | |
59 | void (*disconnect)(struct gameport *); | |
60 | ||
61 | struct device_driver driver; | |
62 | ||
63 | unsigned int ignore; | |
64 | }; | |
65 | #define to_gameport_driver(d) container_of(d, struct gameport_driver, driver) | |
66 | ||
67 | int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); | |
68 | void gameport_close(struct gameport *gameport); | |
69 | void gameport_rescan(struct gameport *gameport); | |
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 | { | |
106 | struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL); | |
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 LT |
121 | /* |
122 | * Use the following fucntions to manipulate gameport's per-port | |
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 | /* | |
136 | * Use the following fucntions to pin gameport's driver in process context | |
137 | */ | |
138 | static inline int gameport_pin_driver(struct gameport *gameport) | |
139 | { | |
140 | return down_interruptible(&gameport->drv_sem); | |
141 | } | |
142 | ||
143 | static inline void gameport_unpin_driver(struct gameport *gameport) | |
144 | { | |
145 | up(&gameport->drv_sem); | |
146 | } | |
147 | ||
148 | void __gameport_register_driver(struct gameport_driver *drv, struct module *owner); | |
149 | static inline void gameport_register_driver(struct gameport_driver *drv) | |
150 | { | |
151 | __gameport_register_driver(drv, THIS_MODULE); | |
152 | } | |
153 | ||
154 | void gameport_unregister_driver(struct gameport_driver *drv); | |
155 | ||
156 | #define GAMEPORT_MODE_DISABLED 0 | |
157 | #define GAMEPORT_MODE_RAW 1 | |
158 | #define GAMEPORT_MODE_COOKED 2 | |
159 | ||
160 | #define GAMEPORT_ID_VENDOR_ANALOG 0x0001 | |
161 | #define GAMEPORT_ID_VENDOR_MADCATZ 0x0002 | |
162 | #define GAMEPORT_ID_VENDOR_LOGITECH 0x0003 | |
163 | #define GAMEPORT_ID_VENDOR_CREATIVE 0x0004 | |
164 | #define GAMEPORT_ID_VENDOR_GENIUS 0x0005 | |
165 | #define GAMEPORT_ID_VENDOR_INTERACT 0x0006 | |
166 | #define GAMEPORT_ID_VENDOR_MICROSOFT 0x0007 | |
167 | #define GAMEPORT_ID_VENDOR_THRUSTMASTER 0x0008 | |
168 | #define GAMEPORT_ID_VENDOR_GRAVIS 0x0009 | |
169 | #define GAMEPORT_ID_VENDOR_GUILLEMOT 0x000a | |
170 | ||
171 | static inline void gameport_trigger(struct gameport *gameport) | |
172 | { | |
173 | if (gameport->trigger) | |
174 | gameport->trigger(gameport); | |
175 | else | |
176 | outb(0xff, gameport->io); | |
177 | } | |
178 | ||
179 | static inline unsigned char gameport_read(struct gameport *gameport) | |
180 | { | |
181 | if (gameport->read) | |
182 | return gameport->read(gameport); | |
183 | else | |
184 | return inb(gameport->io); | |
185 | } | |
186 | ||
187 | static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons) | |
188 | { | |
189 | if (gameport->cooked_read) | |
190 | return gameport->cooked_read(gameport, axes, buttons); | |
191 | else | |
192 | return -1; | |
193 | } | |
194 | ||
195 | static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max) | |
196 | { | |
197 | if (gameport->calibrate) | |
198 | return gameport->calibrate(gameport, axes, max); | |
199 | else | |
200 | return -1; | |
201 | } | |
202 | ||
203 | static inline int gameport_time(struct gameport *gameport, int time) | |
204 | { | |
205 | return (time * gameport->speed) / 1000; | |
206 | } | |
207 | ||
208 | static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) | |
209 | { | |
210 | gameport->poll_handler = handler; | |
211 | } | |
212 | ||
213 | static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) | |
214 | { | |
215 | gameport->poll_interval = msecs; | |
216 | } | |
217 | ||
218 | void gameport_start_polling(struct gameport *gameport); | |
219 | void gameport_stop_polling(struct gameport *gameport); | |
220 | ||
221 | #endif |