1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2001 Vojtech Pavlik
4 */
5
6 /*
7 * EMU10k1 - SB Live / Audigy - gameport driver for Linux
8 */
9
10 /*
11 */
12
13 #include <asm/io.h>
14
15 #include <linux/module.h>
16 #include <linux/ioport.h>
17 #include <linux/gameport.h>
18 #include <linux/slab.h>
19 #include <linux/pci.h>
20
21 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
22 MODULE_DESCRIPTION("EMU10k1 gameport driver");
23 MODULE_LICENSE("GPL");
24
25 struct emu {
26 struct pci_dev *dev;
27 struct gameport *gameport;
28 int io;
29 int size;
30 };
31
32 static const struct pci_device_id emu_tbl[] = {
33
34 { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
35 { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
36 { 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
37 { 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
38 { 0, }
39 };
40
41 MODULE_DEVICE_TABLE(pci, emu_tbl);
42
emu_probe(struct pci_dev * pdev,const struct pci_device_id * ent)43 static int emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
44 {
45 struct emu *emu;
46 struct gameport *port;
47 int error;
48
49 emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
50 port = gameport_allocate_port();
51 if (!emu || !port) {
52 printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
53 error = -ENOMEM;
54 goto err_out_free;
55 }
56
57 error = pci_enable_device(pdev);
58 if (error)
59 goto err_out_free;
60
61 emu->io = pci_resource_start(pdev, 0);
62 emu->size = pci_resource_len(pdev, 0);
63
64 emu->dev = pdev;
65 emu->gameport = port;
66
67 gameport_set_name(port, "EMU10K1");
68 gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
69 port->dev.parent = &pdev->dev;
70 port->io = emu->io;
71
72 if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
73 printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
74 emu->io, emu->io + emu->size - 1);
75 error = -EBUSY;
76 goto err_out_disable_dev;
77 }
78
79 pci_set_drvdata(pdev, emu);
80
81 gameport_register_port(port);
82
83 return 0;
84
85 err_out_disable_dev:
86 pci_disable_device(pdev);
87 err_out_free:
88 gameport_free_port(port);
89 kfree(emu);
90 return error;
91 }
92
emu_remove(struct pci_dev * pdev)93 static void emu_remove(struct pci_dev *pdev)
94 {
95 struct emu *emu = pci_get_drvdata(pdev);
96
97 gameport_unregister_port(emu->gameport);
98 release_region(emu->io, emu->size);
99 kfree(emu);
100
101 pci_disable_device(pdev);
102 }
103
104 static struct pci_driver emu_driver = {
105 .name = "Emu10k1_gameport",
106 .id_table = emu_tbl,
107 .probe = emu_probe,
108 .remove = emu_remove,
109 };
110
111 module_pci_driver(emu_driver);
112