tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 2001 Vojtech Pavlik
3 */
4
5/*
6 * EMU10k1 - SB Live / Audigy - gameport driver for Linux
7 */
8
9/*
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */
28
29#include <asm/io.h>
30
31#include <linux/module.h>
32#include <linux/ioport.h>
33#include <linux/init.h>
34#include <linux/gameport.h>
35#include <linux/slab.h>
36#include <linux/pci.h>
37
38MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
39MODULE_DESCRIPTION("EMU10k1 gameport driver");
40MODULE_LICENSE("GPL");
41
42struct emu {
43 struct pci_dev *dev;
44 struct gameport *gameport;
45 int io;
46 int size;
47};
48
49static const struct pci_device_id emu_tbl[] = {
50
51 { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
52 { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
53 { 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
54 { 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
55 { 0, }
56};
57
58MODULE_DEVICE_TABLE(pci, emu_tbl);
59
60static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
61{
62 struct emu *emu;
63 struct gameport *port;
64 int error;
65
66 emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
67 port = gameport_allocate_port();
68 if (!emu || !port) {
69 printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
70 error = -ENOMEM;
71 goto err_out_free;
72 }
73
74 error = pci_enable_device(pdev);
75 if (error)
76 goto err_out_free;
77
78 emu->io = pci_resource_start(pdev, 0);
79 emu->size = pci_resource_len(pdev, 0);
80
81 emu->dev = pdev;
82 emu->gameport = port;
83
84 gameport_set_name(port, "EMU10K1");
85 gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
86 port->dev.parent = &pdev->dev;
87 port->io = emu->io;
88
89 if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
90 printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
91 emu->io, emu->io + emu->size - 1);
92 error = -EBUSY;
93 goto err_out_disable_dev;
94 }
95
96 pci_set_drvdata(pdev, emu);
97
98 gameport_register_port(port);
99
100 return 0;
101
102 err_out_disable_dev:
103 pci_disable_device(pdev);
104 err_out_free:
105 gameport_free_port(port);
106 kfree(emu);
107 return error;
108}
109
110static void __devexit emu_remove(struct pci_dev *pdev)
111{
112 struct emu *emu = pci_get_drvdata(pdev);
113
114 gameport_unregister_port(emu->gameport);
115 release_region(emu->io, emu->size);
116 kfree(emu);
117
118 pci_disable_device(pdev);
119}
120
121static struct pci_driver emu_driver = {
122 .name = "Emu10k1_gameport",
123 .id_table = emu_tbl,
124 .probe = emu_probe,
125 .remove = __devexit_p(emu_remove),
126};
127
128static int __init emu_init(void)
129{
130 return pci_register_driver(&emu_driver);
131}
132
133static void __exit emu_exit(void)
134{
135 pci_unregister_driver(&emu_driver);
136}
137
138module_init(emu_init);
139module_exit(emu_exit);