1 /*
2  * $Id: emu10k1-gp.c,v 1.8 2002/01/22 20:40:46 vojtech Exp $
3  *
4  *  Copyright (c) 2001 Vojtech Pavlik
5  */
6 
7 /*
8  * EMU10k1 - SB Live / Audigy - gameport driver for Linux
9  */
10 
11 /*
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  *
26  * Should you need to contact me, the author, you can do so either by
27  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
28  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
29  */
30 
31 #include <asm/io.h>
32 
33 #include <linux/module.h>
34 #include <linux/ioport.h>
35 #include <linux/init.h>
36 #include <linux/gameport.h>
37 #include <linux/slab.h>
38 #include <linux/pci.h>
39 
40 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
41 MODULE_DESCRIPTION("EMU10k1 gameport driver");
42 MODULE_LICENSE("GPL");
43 
44 struct emu {
45 	struct pci_dev *dev;
46 	struct gameport *gameport;
47 	int io;
48 	int size;
49 };
50 
51 static struct pci_device_id emu_tbl[] = {
52 
53 	{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
54 	{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
55 	{ 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
56 	{ 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
57 	{ 0, }
58 };
59 
60 MODULE_DEVICE_TABLE(pci, emu_tbl);
61 
62 static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
63 {
64 	int ioport, iolen;
65 	struct emu *emu;
66 	struct gameport *port;
67 
68 	if (pci_enable_device(pdev))
69 		return -EBUSY;
70 
71 	ioport = pci_resource_start(pdev, 0);
72 	iolen = pci_resource_len(pdev, 0);
73 
74 	if (!request_region(ioport, iolen, "emu10k1-gp"))
75 		return -EBUSY;
76 
77 	emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
78 	port = gameport_allocate_port();
79 	if (!emu || !port) {
80 		printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
81 		release_region(ioport, iolen);
82 		kfree(emu);
83 		gameport_free_port(port);
84 		return -ENOMEM;
85 	}
86 
87 	emu->io = ioport;
88 	emu->size = iolen;
89 	emu->dev = pdev;
90 	emu->gameport = port;
91 
92 	gameport_set_name(port, "EMU10K1");
93 	gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
94 	port->dev.parent = &pdev->dev;
95 	port->io = ioport;
96 
97 	pci_set_drvdata(pdev, emu);
98 
99 	gameport_register_port(port);
100 
101 	return 0;
102 }
103 
104 static void __devexit emu_remove(struct pci_dev *pdev)
105 {
106 	struct emu *emu = pci_get_drvdata(pdev);
107 
108 	gameport_unregister_port(emu->gameport);
109 	release_region(emu->io, emu->size);
110 	kfree(emu);
111 }
112 
113 static struct pci_driver emu_driver = {
114         .name =         "Emu10k1_gameport",
115         .id_table =     emu_tbl,
116         .probe =        emu_probe,
117         .remove =       __devexit_p(emu_remove),
118 };
119 
120 static int __init emu_init(void)
121 {
122 	return pci_register_driver(&emu_driver);
123 }
124 
125 static void __exit emu_exit(void)
126 {
127 	pci_unregister_driver(&emu_driver);
128 }
129 
130 module_init(emu_init);
131 module_exit(emu_exit);
132