drivers/input/gameport/emu10k1-gp.c

   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
  41 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
  42 MODULE_DESCRIPTION("EMU10k1 gameport driver");
  43 MODULE_LICENSE("GPL");
  44
  45 struct emu {
  46         struct pci_dev *dev;
  47         struct gameport *gameport;
  48         int io;
  49         int size;
  50 };
  51
  52 static 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
  61 MODULE_DEVICE_TABLE(pci, emu_tbl);
  62
  63 static 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
 105 static 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
 114 static 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
 121 static int __init emu_init(void)
 122 {
 123         return pci_register_driver(&emu_driver);
 124 }
 125
 126 static void __exit emu_exit(void)
 127 {
 128         pci_unregister_driver(&emu_driver);
 129 }
 130
 131 module_init(emu_init);
 132 module_exit(emu_exit);