aboutsummaryrefslogtreecommitdiff
path: root/drivers/input/gameport/emu10k1-gp.c
blob: 422aa0a6b77fc62d3d4b46ffd9a42ba85cce3c99 (plain)
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
/*
 *  Copyright (c) 2001 Vojtech Pavlik
 */

/*
 * EMU10k1 - SB Live / Audigy - 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/module.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/gameport.h>
#include <linux/slab.h>
#include <linux/pci.h>

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("EMU10k1 gameport driver");
MODULE_LICENSE("GPL");

struct emu {
	struct pci_dev *dev;
	struct gameport *gameport;
	int io;
	int size;
};

static const struct pci_device_id emu_tbl[] = {

	{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
	{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
	{ 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
	{ 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
	{ 0, }
};

MODULE_DEVICE_TABLE(pci, emu_tbl);

static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct emu *emu;
	struct gameport *port;
	int error;

	emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
	port = gameport_allocate_port();
	if (!emu || !port) {
		printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
		error = -ENOMEM;
		goto err_out_free;
	}

	error = pci_enable_device(pdev);
	if (error)
		goto err_out_free;

	emu->io = pci_resource_start(pdev, 0);
	emu->size = pci_resource_len(pdev, 0);

	emu->dev = pdev;
	emu->gameport = port;

	gameport_set_name(port, "EMU10K1");
	gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
	port->dev.parent = &pdev->dev;
	port->io = emu->io;

	if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
		printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
			emu->io, emu->io + emu->size - 1);
		error = -EBUSY;
		goto err_out_disable_dev;
	}

	pci_set_drvdata(pdev, emu);

	gameport_register_port(port);

	return 0;

 err_out_disable_dev:
	pci_disable_device(pdev);
 err_out_free:
	gameport_free_port(port);
	kfree(emu);
	return error;
}

static void __devexit emu_remove(struct pci_dev *pdev)
{
	struct emu *emu = pci_get_drvdata(pdev);

	gameport_unregister_port(emu->gameport);
	release_region(emu->io, emu->size);
	kfree(emu);

	pci_disable_device(pdev);
}

static struct pci_driver emu_driver = {
        .name =         "Emu10k1_gameport",
        .id_table =     emu_tbl,
        .probe =        emu_probe,
        .remove =       __devexit_p(emu_remove),
};

static int __init emu_init(void)
{
	return pci_register_driver(&emu_driver);
}

static void __exit emu_exit(void)
{
	pci_unregister_driver(&emu_driver);
}

module_init(emu_init);
module_exit(emu_exit);