aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/gameport.h
blob: b1272f822cfa15cd0b1acca21267c9a73174ee37 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
#ifndef _GAMEPORT_H
#define _GAMEPORT_H

/*
 *  Copyright (c) 1999-2002 Vojtech Pavlik
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#include <asm/io.h>
#include <linux/list.h>
#include <linux/device.h>

struct gameport {

	void *port_data;	/* Private pointer for gameport drivers */
	char name[32];
	char phys[32];

	int io;
	int speed;
	int fuzz;

	void (*trigger)(struct gameport *);
	unsigned char (*read)(struct gameport *);
	int (*cooked_read)(struct gameport *, int *, int *);
	int (*calibrate)(struct gameport *, int *, int *);
	int (*open)(struct gameport *, int);
	void (*close)(struct gameport *);

	struct timer_list poll_timer;
	unsigned int poll_interval;	/* in msecs */
	spinlock_t timer_lock;
	unsigned int poll_cnt;
	void (*poll_handler)(struct gameport *);

	struct gameport *parent, *child;

	struct gameport_driver *drv;
	struct semaphore drv_sem;	/* protects serio->drv so attributes can pin driver */

	struct device dev;
	unsigned int registered;	/* port has been fully registered with driver core */

	struct list_head node;
};
#define to_gameport_port(d)	container_of(d, struct gameport, dev)

struct gameport_driver {

	void *private;
	char *description;

	int (*connect)(struct gameport *, struct gameport_driver *drv);
	int (*reconnect)(struct gameport *);
	void (*disconnect)(struct gameport *);

	struct device_driver driver;

	unsigned int ignore;
};
#define to_gameport_driver(d)	container_of(d, struct gameport_driver, driver)

int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode);
void gameport_close(struct gameport *gameport);
void gameport_rescan(struct gameport *gameport);

void __gameport_register_port(struct gameport *gameport, struct module *owner);
static inline void gameport_register_port(struct gameport *gameport)
{
	__gameport_register_port(gameport, THIS_MODULE);
}

void gameport_unregister_port(struct gameport *gameport);

static inline struct gameport *gameport_allocate_port(void)
{
	struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL);

	return gameport;
}

static inline void gameport_free_port(struct gameport *gameport)
{
	kfree(gameport);
}

static inline void gameport_set_name(struct gameport *gameport, const char *name)
{
	strlcpy(gameport->name, name, sizeof(gameport->name));
}

void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
	__attribute__ ((format (printf, 2, 3)));

/*
 * Use the following fucntions to manipulate gameport's per-port
 * driver-specific data.
 */
static inline void *gameport_get_drvdata(struct gameport *gameport)
{
	return dev_get_drvdata(&gameport->dev);
}

static inline void gameport_set_drvdata(struct gameport *gameport, void *data)
{
	dev_set_drvdata(&gameport->dev, data);
}

/*
 * Use the following fucntions to pin gameport's driver in process context
 */
static inline int gameport_pin_driver(struct gameport *gameport)
{
	return down_interruptible(&gameport->drv_sem);
}

static inline void gameport_unpin_driver(struct gameport *gameport)
{
	up(&gameport->drv_sem);
}

void __gameport_register_driver(struct gameport_driver *drv, struct module *owner);
static inline void gameport_register_driver(struct gameport_driver *drv)
{
	__gameport_register_driver(drv, THIS_MODULE);
}

void gameport_unregister_driver(struct gameport_driver *drv);

#define GAMEPORT_MODE_DISABLED		0
#define GAMEPORT_MODE_RAW		1
#define GAMEPORT_MODE_COOKED		2

#define GAMEPORT_ID_VENDOR_ANALOG	0x0001
#define GAMEPORT_ID_VENDOR_MADCATZ	0x0002
#define GAMEPORT_ID_VENDOR_LOGITECH	0x0003
#define GAMEPORT_ID_VENDOR_CREATIVE	0x0004
#define GAMEPORT_ID_VENDOR_GENIUS	0x0005
#define GAMEPORT_ID_VENDOR_INTERACT	0x0006
#define GAMEPORT_ID_VENDOR_MICROSOFT	0x0007
#define GAMEPORT_ID_VENDOR_THRUSTMASTER	0x0008
#define GAMEPORT_ID_VENDOR_GRAVIS	0x0009
#define GAMEPORT_ID_VENDOR_GUILLEMOT	0x000a

static inline void gameport_trigger(struct gameport *gameport)
{
	if (gameport->trigger)
		gameport->trigger(gameport);
	else
		outb(0xff, gameport->io);
}

static inline unsigned char gameport_read(struct gameport *gameport)
{
	if (gameport->read)
		return gameport->read(gameport);
	else
		return inb(gameport->io);
}

static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
	if (gameport->cooked_read)
		return gameport->cooked_read(gameport, axes, buttons);
	else
		return -1;
}

static inline int gameport_calibrate(struct gameport *gameport, int *axes, int *max)
{
	if (gameport->calibrate)
		return gameport->calibrate(gameport, axes, max);
	else
		return -1;
}

static inline int gameport_time(struct gameport *gameport, int time)
{
	return (time * gameport->speed) / 1000;
}

static inline void gameport_set_poll_handler(struct gameport *gameport, void (*handler)(struct gameport *))
{
	gameport->poll_handler = handler;
}

static inline void gameport_set_poll_interval(struct gameport *gameport, unsigned int msecs)
{
	gameport->poll_interval = msecs;
}

void gameport_start_polling(struct gameport *gameport);
void gameport_stop_polling(struct gameport *gameport);

#endif