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