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