2 * FM801 gameport driver for Linux
4 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <linux/delay.h>
25 #include <linux/errno.h>
26 #include <linux/ioport.h>
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/pci.h>
30 #include <linux/init.h>
31 #include <linux/slab.h>
32 #include <linux/gameport.h>
34 #define PCI_VENDOR_ID_FORTEMEDIA 0x1319
35 #define PCI_DEVICE_ID_FM801_GP 0x0802
40 struct gameport
*gameport
;
41 struct resource
*res_port
;
45 static int fm801_gp_cooked_read(struct gameport
*gameport
, int *axes
, int *buttons
)
49 w
= inw(gameport
->io
+ 2);
50 *buttons
= (~w
>> 14) & 0x03;
51 axes
[0] = (w
== 0xffff) ? -1 : ((w
& 0x1fff) << 5);
52 w
= inw(gameport
->io
+ 4);
53 axes
[1] = (w
== 0xffff) ? -1 : ((w
& 0x1fff) << 5);
54 w
= inw(gameport
->io
+ 6);
55 *buttons
|= ((~w
>> 14) & 0x03) << 2;
56 axes
[2] = (w
== 0xffff) ? -1 : ((w
& 0x1fff) << 5);
57 w
= inw(gameport
->io
+ 8);
58 axes
[3] = (w
== 0xffff) ? -1 : ((w
& 0x1fff) << 5);
59 outw(0xff, gameport
->io
); /* reset */
65 static int fm801_gp_open(struct gameport
*gameport
, int mode
)
69 case GAMEPORT_MODE_COOKED
:
72 case GAMEPORT_MODE_RAW
:
81 static int __devinit
fm801_gp_probe(struct pci_dev
*pci
, const struct pci_device_id
*id
)
84 struct gameport
*port
;
87 gp
= kzalloc(sizeof(struct fm801_gp
), GFP_KERNEL
);
88 port
= gameport_allocate_port();
90 printk(KERN_ERR
"fm801-gp: Memory allocation failed\n");
95 error
= pci_enable_device(pci
);
99 port
->open
= fm801_gp_open
;
101 port
->cooked_read
= fm801_gp_cooked_read
;
103 gameport_set_name(port
, "FM801");
104 gameport_set_phys(port
, "pci%s/gameport0", pci_name(pci
));
105 port
->dev
.parent
= &pci
->dev
;
106 port
->io
= pci_resource_start(pci
, 0);
109 gp
->res_port
= request_region(port
->io
, 0x10, "FM801 GP");
111 printk(KERN_DEBUG
"fm801-gp: unable to grab region 0x%x-0x%x\n",
112 port
->io
, port
->io
+ 0x0f);
114 goto err_out_disable_dev
;
117 pci_set_drvdata(pci
, gp
);
119 outb(0x60, port
->io
+ 0x0d); /* enable joystick 1 and 2 */
120 gameport_register_port(port
);
125 pci_disable_device(pci
);
127 gameport_free_port(port
);
132 static void __devexit
fm801_gp_remove(struct pci_dev
*pci
)
134 struct fm801_gp
*gp
= pci_get_drvdata(pci
);
137 gameport_unregister_port(gp
->gameport
);
138 release_resource(gp
->res_port
);
143 static const struct pci_device_id fm801_gp_id_table
[] = {
144 { PCI_VENDOR_ID_FORTEMEDIA
, PCI_DEVICE_ID_FM801_GP
, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 },
148 static struct pci_driver fm801_gp_driver
= {
149 .name
= "FM801_gameport",
150 .id_table
= fm801_gp_id_table
,
151 .probe
= fm801_gp_probe
,
152 .remove
= __devexit_p(fm801_gp_remove
),
155 static int __init
fm801_gp_init(void)
157 return pci_register_driver(&fm801_gp_driver
);
160 static void __exit
fm801_gp_exit(void)
162 pci_unregister_driver(&fm801_gp_driver
);
165 module_init(fm801_gp_init
);
166 module_exit(fm801_gp_exit
);
168 MODULE_DEVICE_TABLE(pci
, fm801_gp_id_table
);
170 MODULE_DESCRIPTION("FM801 gameport driver");
171 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
172 MODULE_LICENSE("GPL");