emu10k1-gp.c
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上传日期:2013-04-10
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- /*
- * $Id: emu10k1-gp.c,v 1.2 2001/04/24 07:48:56 vojtech Exp $
- *
- * Copyright (c) 2001 Vojtech Pavlik
- *
- * Sponsored by SuSE
- */
- /*
- * EMU10k1 - SB Live! - gameport driver for Linux
- */
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Should you need to contact me, the author, you can do so either by
- * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
- * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
- */
- #include <asm/io.h>
- #include <linux/module.h>
- #include <linux/ioport.h>
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/gameport.h>
- #include <linux/slab.h>
- #include <linux/pci.h>
- MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
- MODULE_LICENSE("GPL");
- struct emu {
- struct pci_dev *dev;
- struct emu *next;
- struct gameport gameport;
- int size;
- };
-
- static struct pci_device_id emu_tbl[] __devinitdata = {
- { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live! gameport */
- { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy! gameport */
- { 0, }
- };
- MODULE_DEVICE_TABLE(pci, emu_tbl);
- static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- {
- int ioport, iolen;
- int rc;
- struct emu *port;
-
- rc = pci_enable_device(pdev);
- if (rc) {
- printk(KERN_ERR "emu10k1-gp: Cannot enable emu10k1 gameport (bus %d, devfn %d) error=%dn",
- pdev->bus->number, pdev->devfn, rc);
- return rc;
- }
- ioport = pci_resource_start(pdev, 0);
- iolen = pci_resource_len(pdev, 0);
- if (!request_region(ioport, iolen, "emu10k1-gp"))
- return -EBUSY;
- if (!(port = kmalloc(sizeof(struct emu), GFP_KERNEL))) {
- printk(KERN_ERR "emu10k1-gp: Memory allocation failed.n");
- release_region(ioport, iolen);
- return -ENOMEM;
- }
- memset(port, 0, sizeof(struct emu));
- port->gameport.io = ioport;
- port->size = iolen;
- port->dev = pdev;
- pci_set_drvdata(pdev, port);
- gameport_register_port(&port->gameport);
- printk(KERN_INFO "gameport%d: Emu10k1 Gameport at %#x size %d speed %d kHzn",
- port->gameport.number, port->gameport.io, iolen, port->gameport.speed);
- return 0;
- }
- static void __devexit emu_remove(struct pci_dev *pdev)
- {
- struct emu *port = pci_get_drvdata(pdev);
- gameport_unregister_port(&port->gameport);
- release_region(port->gameport.io, port->size);
- kfree(port);
- }
- static struct pci_driver emu_driver = {
- name: "Emu10k1 Gameport",
- id_table: emu_tbl,
- probe: emu_probe,
- remove: __devexit_p(emu_remove),
- };
- int __init emu_init(void)
- {
- return pci_module_init(&emu_driver);
- }
- void __exit emu_exit(void)
- {
- pci_unregister_driver(&emu_driver);
- }
- module_init(emu_init);
- module_exit(emu_exit);