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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 1996-2001 Vojtech Pavlik
4 */
5
6/*
7 * This is just a very simple driver that can dump the data
8 * out of the joystick port into the syslog ...
9 */
10
11/*
12 */
13
14#include <linux/module.h>
15#include <linux/gameport.h>
16#include <linux/kernel.h>
17#include <linux/delay.h>
18#include <linux/slab.h>
19
20#define DRIVER_DESC "Gameport data dumper module"
21
22MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
23MODULE_DESCRIPTION(DRIVER_DESC);
24MODULE_LICENSE("GPL");
25
26#define BUF_SIZE 256
27
28struct joydump {
29 unsigned int time;
30 unsigned char data;
31};
32
33static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
34{
35 struct joydump *buf; /* all entries */
36 struct joydump *dump, *prev; /* one entry each */
37 int axes[4], buttons;
38 int i, j, t, timeout;
39 unsigned long flags;
40 unsigned char u;
41
42 printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
43 printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
44 printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
45
46 if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
47
48 printk(KERN_INFO "joydump: | Raw mode not available - trying cooked. |\n");
49
50 if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
51
52 printk(KERN_INFO "joydump: | Cooked not available either. Failing. |\n");
53 printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
54 return -ENODEV;
55 }
56
57 gameport_cooked_read(gameport, axes, &buttons);
58
59 for (i = 0; i < 4; i++)
60 printk(KERN_INFO "joydump: | Axis %d: %4d. |\n", i, axes[i]);
61 printk(KERN_INFO "joydump: | Buttons %02x. |\n", buttons);
62 printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
63 }
64
65 timeout = gameport_time(gameport, 10000); /* 10 ms */
66
67 buf = kmalloc_array(BUF_SIZE, sizeof(struct joydump), GFP_KERNEL);
68 if (!buf) {
69 printk(KERN_INFO "joydump: no memory for testing\n");
70 goto jd_end;
71 }
72 dump = buf;
73 t = 0;
74 i = 1;
75
76 local_irq_save(flags);
77
78 u = gameport_read(gameport);
79
80 dump->data = u;
81 dump->time = t;
82 dump++;
83
84 gameport_trigger(gameport);
85
86 while (i < BUF_SIZE && t < timeout) {
87
88 dump->data = gameport_read(gameport);
89
90 if (dump->data ^ u) {
91 u = dump->data;
92 dump->time = t;
93 i++;
94 dump++;
95 }
96 t++;
97 }
98
99 local_irq_restore(flags);
100
101/*
102 * Dump data.
103 */
104
105 t = i;
106 dump = buf;
107 prev = dump;
108
109 printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
110 printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
111 for (j = 7; j >= 0; j--)
112 printk("%d", (dump->data >> j) & 1);
113 printk(" |\n");
114 dump++;
115
116 for (i = 1; i < t; i++, dump++, prev++) {
117 printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
118 i, dump->time - prev->time);
119 for (j = 7; j >= 0; j--)
120 printk("%d", (dump->data >> j) & 1);
121 printk(" |\n");
122 }
123 kfree(buf);
124
125jd_end:
126 printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
127
128 return 0;
129}
130
131static void joydump_disconnect(struct gameport *gameport)
132{
133 gameport_close(gameport);
134}
135
136static struct gameport_driver joydump_drv = {
137 .driver = {
138 .name = "joydump",
139 },
140 .description = DRIVER_DESC,
141 .connect = joydump_connect,
142 .disconnect = joydump_disconnect,
143};
144
145module_gameport_driver(joydump_drv);
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
39MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
40MODULE_DESCRIPTION(DRIVER_DESC);
41MODULE_LICENSE("GPL");
42
43#define BUF_SIZE 256
44
45struct joydump {
46 unsigned int time;
47 unsigned char data;
48};
49
50static 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
142jd_end:
143 printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
144
145 return 0;
146}
147
148static void joydump_disconnect(struct gameport *gameport)
149{
150 gameport_close(gameport);
151}
152
153static 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
162module_gameport_driver(joydump_drv);