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
|
/*
* $Id: vortex.c,v 1.5 2002/07/01 15:39:30 vojtech Exp $
*
* Copyright (c) 2000-2001 Vojtech Pavlik
*
* Based on the work of:
* Raymond Ingles
*/
/*
* Trident 4DWave and Aureal Vortex gameport driver for Linux
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/gameport.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Aureal Vortex and Vortex2 gameport driver");
MODULE_LICENSE("GPL");
#define VORTEX_GCR 0x0c /* Gameport control register */
#define VORTEX_LEG 0x08 /* Legacy port location */
#define VORTEX_AXD 0x10 /* Axes start */
#define VORTEX_DATA_WAIT 20 /* 20 ms */
struct vortex {
struct gameport *gameport;
struct pci_dev *dev;
unsigned char __iomem *base;
unsigned char __iomem *io;
};
static unsigned char vortex_read(struct gameport *gameport)
{
struct vortex *vortex = gameport->port_data;
return readb(vortex->io + VORTEX_LEG);
}
static void vortex_trigger(struct gameport *gameport)
{
struct vortex *vortex = gameport->port_data;
writeb(0xff, vortex->io + VORTEX_LEG);
}
static int vortex_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
struct vortex *vortex = gameport->port_data;
int i;
*buttons = (~readb(vortex->base + VORTEX_LEG) >> 4) & 0xf;
for (i = 0; i < 4; i++) {
axes[i] = readw(vortex->io + VORTEX_AXD + i * sizeof(u32));
if (axes[i] == 0x1fff) axes[i] = -1;
}
return 0;
}
static int vortex_open(struct gameport *gameport, int mode)
{
struct vortex *vortex = gameport->port_data;
switch (mode) {
case GAMEPORT_MODE_COOKED:
writeb(0x40, vortex->io + VORTEX_GCR);
msleep(VORTEX_DATA_WAIT);
return 0;
case GAMEPORT_MODE_RAW:
writeb(0x00, vortex->io + VORTEX_GCR);
return 0;
default:
return -1;
}
return 0;
}
static int __devinit vortex_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct vortex *vortex;
struct gameport *port;
int i;
vortex = kcalloc(1, sizeof(struct vortex), GFP_KERNEL);
port = gameport_allocate_port();
if (!vortex || !port) {
printk(KERN_ERR "vortex: Memory allocation failed.\n");
kfree(vortex);
gameport_free_port(port);
return -ENOMEM;
}
for (i = 0; i < 6; i++)
if (~pci_resource_flags(dev, i) & IORESOURCE_IO)
break;
pci_enable_device(dev);
vortex->dev = dev;
vortex->gameport = port;
vortex->base = ioremap(pci_resource_start(vortex->dev, i),
pci_resource_len(vortex->dev, i));
vortex->io = vortex->base + id->driver_data;
pci_set_drvdata(dev, vortex);
port->port_data = vortex;
port->fuzz = 64;
gameport_set_name(port, "AU88x0");
gameport_set_phys(port, "pci%s/gameport0", pci_name(dev));
port->dev.parent = &dev->dev;
port->read = vortex_read;
port->trigger = vortex_trigger;
port->cooked_read = vortex_cooked_read;
port->open = vortex_open;
gameport_register_port(port);
return 0;
}
static void __devexit vortex_remove(struct pci_dev *dev)
{
struct vortex *vortex = pci_get_drvdata(dev);
gameport_unregister_port(vortex->gameport);
iounmap(vortex->base);
kfree(vortex);
}
static struct pci_device_id vortex_id_table[] = {
{ 0x12eb, 0x0001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0x11000 },
{ 0x12eb, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0x28800 },
{ 0 }
};
static struct pci_driver vortex_driver = {
.name = "vortex_gameport",
.id_table = vortex_id_table,
.probe = vortex_probe,
.remove = __devexit_p(vortex_remove),
};
static int __init vortex_init(void)
{
return pci_register_driver(&vortex_driver);
}
static void __exit vortex_exit(void)
{
pci_unregister_driver(&vortex_driver);
}
module_init(vortex_init);
module_exit(vortex_exit);
|
