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
;
86 gp
= kzalloc(sizeof(struct fm801_gp
), GFP_KERNEL
);
87 port
= gameport_allocate_port();
89 printk(KERN_ERR
"fm801-gp: Memory allocation failed\n");
91 gameport_free_port(port
);
95 pci_enable_device(pci
);
97 port
->open
= fm801_gp_open
;
99 port
->cooked_read
= fm801_gp_cooked_read
;
101 gameport_set_name(port
, "FM801");
102 gameport_set_phys(port
, "pci%s/gameport0", pci_name(pci
));
103 port
->dev
.parent
= &pci
->dev
;
104 port
->io
= pci_resource_start(pci
, 0);
107 gp
->res_port
= request_region(port
->io
, 0x10, "FM801 GP");
110 gameport_free_port(port
);
111 printk(KERN_DEBUG
"fm801-gp: unable to grab region 0x%x-0x%x\n",
112 port
->io
, port
->io
+ 0x0f);
116 pci_set_drvdata(pci
, gp
);
118 outb(0x60, port
->io
+ 0x0d); /* enable joystick 1 and 2 */
119 gameport_register_port(port
);
124 static void __devexit
fm801_gp_remove(struct pci_dev
*pci
)
126 struct fm801_gp
*gp
= pci_get_drvdata(pci
);
129 gameport_unregister_port(gp
->gameport
);
130 release_resource(gp
->res_port
);
135 static struct pci_device_id fm801_gp_id_table
[] = {
136 { PCI_VENDOR_ID_FORTEMEDIA
, PCI_DEVICE_ID_FM801_GP
, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 },
140 static struct pci_driver fm801_gp_driver
= {
141 .name
= "FM801_gameport",
142 .id_table
= fm801_gp_id_table
,
143 .probe
= fm801_gp_probe
,
144 .remove
= __devexit_p(fm801_gp_remove
),
147 static int __init
fm801_gp_init(void)
149 return pci_register_driver(&fm801_gp_driver
);
152 static void __exit
fm801_gp_exit(void)
154 pci_unregister_driver(&fm801_gp_driver
);
157 module_init(fm801_gp_init
);
158 module_exit(fm801_gp_exit
);
160 MODULE_DEVICE_TABLE(pci
, fm801_gp_id_table
);
162 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
163 MODULE_LICENSE("GPL");