Input: remove CVS keywords
[linux-3.10.git] / drivers / input / joystick / joydump.c
1 /*
2  *  Copyright (c) 1996-2001 Vojtech Pavlik
3  */
4
5 /*
6  * This is just a very simple driver that can dump the data
7  * out of the joystick port into the syslog ...
8  */
9
10 /*
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24  *
25  * Should you need to contact me, the author, you can do so either by
26  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28  */
29
30 #include <linux/module.h>
31 #include <linux/gameport.h>
32 #include <linux/kernel.h>
33 #include <linux/delay.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36
37 #define DRIVER_DESC     "Gameport data dumper module"
38
39 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
40 MODULE_DESCRIPTION(DRIVER_DESC);
41 MODULE_LICENSE("GPL");
42
43 #define BUF_SIZE 256
44
45 struct joydump {
46         unsigned int time;
47         unsigned char data;
48 };
49
50 static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
51 {
52         struct joydump *buf;    /* all entries */
53         struct joydump *dump, *prev;    /* one entry each */
54         int axes[4], buttons;
55         int i, j, t, timeout;
56         unsigned long flags;
57         unsigned char u;
58
59         printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
60         printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
61         printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
62
63         if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
64
65                 printk(KERN_INFO "joydump: | Raw mode not available - trying cooked.    |\n");
66
67                 if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
68
69                         printk(KERN_INFO "joydump: | Cooked not available either. Failing.   |\n");
70                         printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
71                         return -ENODEV;
72                 }
73
74                 gameport_cooked_read(gameport, axes, &buttons);
75
76                 for (i = 0; i < 4; i++)
77                         printk(KERN_INFO "joydump: | Axis %d: %4d.                           |\n", i, axes[i]);
78                 printk(KERN_INFO "joydump: | Buttons %02x.                             |\n", buttons);
79                 printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
80         }
81
82         timeout = gameport_time(gameport, 10000); /* 10 ms */
83
84         buf = kmalloc(BUF_SIZE * sizeof(struct joydump), GFP_KERNEL);
85         if (!buf) {
86                 printk(KERN_INFO "joydump: no memory for testing\n");
87                 goto jd_end;
88         }
89         dump = buf;
90         t = 0;
91         i = 1;
92
93         local_irq_save(flags);
94
95         u = gameport_read(gameport);
96
97         dump->data = u;
98         dump->time = t;
99         dump++;
100
101         gameport_trigger(gameport);
102
103         while (i < BUF_SIZE && t < timeout) {
104
105                 dump->data = gameport_read(gameport);
106
107                 if (dump->data ^ u) {
108                         u = dump->data;
109                         dump->time = t;
110                         i++;
111                         dump++;
112                 }
113                 t++;
114         }
115
116         local_irq_restore(flags);
117
118 /*
119  * Dump data.
120  */
121
122         t = i;
123         dump = buf;
124         prev = dump;
125
126         printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
127         printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
128         for (j = 7; j >= 0; j--)
129                 printk("%d", (dump->data >> j) & 1);
130         printk(" |\n");
131         dump++;
132
133         for (i = 1; i < t; i++, dump++, prev++) {
134                 printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
135                         i, dump->time - prev->time);
136                 for (j = 7; j >= 0; j--)
137                         printk("%d", (dump->data >> j) & 1);
138                 printk(" |\n");
139         }
140         kfree(buf);
141
142 jd_end:
143         printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
144
145         return 0;
146 }
147
148 static void joydump_disconnect(struct gameport *gameport)
149 {
150         gameport_close(gameport);
151 }
152
153 static struct gameport_driver joydump_drv = {
154         .driver         = {
155                 .name   = "joydump",
156         },
157         .description    = DRIVER_DESC,
158         .connect        = joydump_connect,
159         .disconnect     = joydump_disconnect,
160 };
161
162 static int __init joydump_init(void)
163 {
164         gameport_register_driver(&joydump_drv);
165         return 0;
166 }
167
168 static void __exit joydump_exit(void)
169 {
170         gameport_unregister_driver(&joydump_drv);
171 }
172
173 module_init(joydump_init);
174 module_exit(joydump_exit);