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
21MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
22MODULE_DESCRIPTION("EMU10k1 gameport driver");
23MODULE_LICENSE("GPL");
24
25struct emu {
26	struct pci_dev *dev;
27	struct gameport *gameport;
28	int io;
29	int size;
30};
31
32static 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
41MODULE_DEVICE_TABLE(pci, emu_tbl);
42
43static 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
93static 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
104static struct pci_driver emu_driver = {
105        .name =         "Emu10k1_gameport",
106        .id_table =     emu_tbl,
107        .probe =        emu_probe,
108	.remove =	emu_remove,
109};
110
111module_pci_driver(emu_driver);
112