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 
37 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38 MODULE_DESCRIPTION("EMU10k1 gameport driver");
39 MODULE_LICENSE("GPL");
40 
41 struct emu {
42 	struct pci_dev *dev;
43 	struct gameport *gameport;
44 	int io;
45 	int size;
46 };
47 
48 static 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 
57 MODULE_DEVICE_TABLE(pci, emu_tbl);
58 
59 static 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 
109 static 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 
120 static struct pci_driver emu_driver = {
121         .name =         "Emu10k1_gameport",
122         .id_table =     emu_tbl,
123         .probe =        emu_probe,
124 	.remove =	emu_remove,
125 };
126 
127 module_pci_driver(emu_driver);
128