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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 | #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 | #include <linux/slab.h> |
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; |
47 | struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ |
48 | |
49 | struct device dev; |
50 | |
51 | struct list_head node; |
52 | }; |
53 | #define to_gameport_port(d) container_of(d, struct gameport, dev) |
54 | |
55 | struct 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 | |
70 | int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode); |
71 | void gameport_close(struct gameport *gameport); |
72 | |
73 | #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) |
74 | |
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 | |
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 | |
106 | static inline struct gameport *gameport_allocate_port(void) |
107 | { |
108 | struct gameport *gameport = kzalloc(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 | |
123 | /* |
124 | * Use the following functions to manipulate gameport's per-port |
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 | /* |
138 | * Use the following functions to pin gameport's driver in process context |
139 | */ |
140 | static inline int gameport_pin_driver(struct gameport *gameport) |
141 | { |
142 | return mutex_lock_interruptible(&gameport->drv_mutex); |
143 | } |
144 | |
145 | static inline void gameport_unpin_driver(struct gameport *gameport) |
146 | { |
147 | mutex_unlock(&gameport->drv_mutex); |
148 | } |
149 | |
150 | int __gameport_register_driver(struct gameport_driver *drv, |
151 | struct module *owner, const char *mod_name); |
152 | static inline int __must_check gameport_register_driver(struct gameport_driver *drv) |
153 | { |
154 | return __gameport_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); |
155 | } |
156 | |
157 | void gameport_unregister_driver(struct gameport_driver *drv); |
158 | |
159 | #endif /* __KERNEL__ */ |
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 | |
178 | static 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 | |
186 | static 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 | |
194 | static 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 | |
202 | static 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 | |
210 | static inline int gameport_time(struct gameport *gameport, int time) |
211 | { |
212 | return (time * gameport->speed) / 1000; |
213 | } |
214 | |
215 | static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *)) |
216 | { |
217 | gameport->poll_handler = handler; |
218 | } |
219 | |
220 | static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs) |
221 | { |
222 | gameport->poll_interval = msecs; |
223 | } |
224 | |
225 | void gameport_start_polling(struct gameport *gameport); |
226 | void gameport_stop_polling(struct gameport *gameport); |
227 | |
228 | #endif /* __KERNEL__ */ |
229 | #endif |
230 |
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