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/gameport.h>
34#include <linux/slab.h>
35#include <linux/pci.h>
36
37MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38MODULE_DESCRIPTION("EMU10k1 gameport driver");
39MODULE_LICENSE("GPL");
40
41struct emu {
42	struct pci_dev *dev;
43	struct gameport *gameport;
44	int io;
45	int size;
46};
47
48static const struct pci_device_id emu_tbl[] = {
49
50	{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
51	{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
52	{ 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
53	{ 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
54	{ 0, }
55};
56
57MODULE_DEVICE_TABLE(pci, emu_tbl);
58
59static int emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
60{
61	struct emu *emu;
62	struct gameport *port;
63	int error;
64
65	emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
66	port = gameport_allocate_port();
67	if (!emu || !port) {
68		printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
69		error = -ENOMEM;
70		goto err_out_free;
71	}
72
73	error = pci_enable_device(pdev);
74	if (error)
75		goto err_out_free;
76
77	emu->io = pci_resource_start(pdev, 0);
78	emu->size = pci_resource_len(pdev, 0);
79
80	emu->dev = pdev;
81	emu->gameport = port;
82
83	gameport_set_name(port, "EMU10K1");
84	gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
85	port->dev.parent = &pdev->dev;
86	port->io = emu->io;
87
88	if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
89		printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
90			emu->io, emu->io + emu->size - 1);
91		error = -EBUSY;
92		goto err_out_disable_dev;
93	}
94
95	pci_set_drvdata(pdev, emu);
96
97	gameport_register_port(port);
98
99	return 0;
100
101 err_out_disable_dev:
102	pci_disable_device(pdev);
103 err_out_free:
104	gameport_free_port(port);
105	kfree(emu);
106	return error;
107}
108
109static void emu_remove(struct pci_dev *pdev)
110{
111	struct emu *emu = pci_get_drvdata(pdev);
112
113	gameport_unregister_port(emu->gameport);
114	release_region(emu->io, emu->size);
115	kfree(emu);
116
117	pci_disable_device(pdev);
118}
119
120static struct pci_driver emu_driver = {
121        .name =         "Emu10k1_gameport",
122        .id_table =     emu_tbl,
123        .probe =        emu_probe,
124	.remove =	emu_remove,
125};
126
127module_pci_driver(emu_driver);
128