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/drivers/input/gameport/emu10k1-gp.c

https://bitbucket.org/evzijst/gittest
C | 132 lines | 80 code | 25 blank | 27 comment | 4 complexity | 4a7ec8d46a0eea5c9d307393e8ec686f MD5 | raw file
  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/config.h>
 36#include <linux/init.h>
 37#include <linux/gameport.h>
 38#include <linux/slab.h>
 39#include <linux/pci.h>
 40
 41MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 42MODULE_DESCRIPTION("EMU10k1 gameport driver");
 43MODULE_LICENSE("GPL");
 44
 45struct emu {
 46	struct pci_dev *dev;
 47	struct gameport *gameport;
 48	int io;
 49	int size;
 50};
 51
 52static struct pci_device_id emu_tbl[] = {
 53
 54	{ 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
 55	{ 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
 56	{ 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
 57	{ 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
 58	{ 0, }
 59};
 60
 61MODULE_DEVICE_TABLE(pci, emu_tbl);
 62
 63static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 64{
 65	int ioport, iolen;
 66	struct emu *emu;
 67	struct gameport *port;
 68
 69	if (pci_enable_device(pdev))
 70		return -EBUSY;
 71
 72	ioport = pci_resource_start(pdev, 0);
 73	iolen = pci_resource_len(pdev, 0);
 74
 75	if (!request_region(ioport, iolen, "emu10k1-gp"))
 76		return -EBUSY;
 77
 78	emu = kcalloc(1, sizeof(struct emu), GFP_KERNEL);
 79	port = gameport_allocate_port();
 80	if (!emu || !port) {
 81		printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
 82		release_region(ioport, iolen);
 83		kfree(emu);
 84		gameport_free_port(port);
 85		return -ENOMEM;
 86	}
 87
 88	emu->io = ioport;
 89	emu->size = iolen;
 90	emu->dev = pdev;
 91	emu->gameport = port;
 92
 93	gameport_set_name(port, "EMU10K1");
 94	gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
 95	port->dev.parent = &pdev->dev;
 96	port->io = ioport;
 97
 98	pci_set_drvdata(pdev, emu);
 99
100	gameport_register_port(port);
101
102	return 0;
103}
104
105static void __devexit emu_remove(struct pci_dev *pdev)
106{
107	struct emu *emu = pci_get_drvdata(pdev);
108
109	gameport_unregister_port(emu->gameport);
110	release_region(emu->io, emu->size);
111	kfree(emu);
112}
113
114static struct pci_driver emu_driver = {
115        .name =         "Emu10k1_gameport",
116        .id_table =     emu_tbl,
117        .probe =        emu_probe,
118        .remove =       __devexit_p(emu_remove),
119};
120
121static int __init emu_init(void)
122{
123	return pci_register_driver(&emu_driver);
124}
125
126static void __exit emu_exit(void)
127{
128	pci_unregister_driver(&emu_driver);
129}
130
131module_init(emu_init);
132module_exit(emu_exit);