258 lines
6.8 KiB
C
258 lines
6.8 KiB
C
/*
|
|
* $Id: turbografx.c,v 1.14 2002/01/22 20:30:39 vojtech Exp $
|
|
*
|
|
* Copyright (c) 1998-2001 Vojtech Pavlik
|
|
*
|
|
* Based on the work of:
|
|
* Steffen Schwenke
|
|
*/
|
|
|
|
/*
|
|
* TurboGraFX parallel port interface 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, Simunkova 1594, Prague 8, 182 00 Czech Republic
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/parport.h>
|
|
#include <linux/input.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/init.h>
|
|
|
|
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
|
|
MODULE_DESCRIPTION("TurboGraFX parallel port interface driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int tgfx[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
|
|
static int tgfx_nargs __initdata = 0;
|
|
module_param_array_named(map, tgfx, int, &tgfx_nargs, 0);
|
|
MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
|
|
|
|
static int tgfx_2[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
|
|
static int tgfx_nargs_2 __initdata = 0;
|
|
module_param_array_named(map2, tgfx_2, int, &tgfx_nargs_2, 0);
|
|
MODULE_PARM_DESC(map2, "Describes second set of devices");
|
|
|
|
static int tgfx_3[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 };
|
|
static int tgfx_nargs_3 __initdata = 0;
|
|
module_param_array_named(map3, tgfx_3, int, &tgfx_nargs_3, 0);
|
|
MODULE_PARM_DESC(map3, "Describes third set of devices");
|
|
|
|
__obsolete_setup("tgfx=");
|
|
__obsolete_setup("tgfx_2=");
|
|
__obsolete_setup("tgfx_3=");
|
|
|
|
#define TGFX_REFRESH_TIME HZ/100 /* 10 ms */
|
|
|
|
#define TGFX_TRIGGER 0x08
|
|
#define TGFX_UP 0x10
|
|
#define TGFX_DOWN 0x20
|
|
#define TGFX_LEFT 0x40
|
|
#define TGFX_RIGHT 0x80
|
|
|
|
#define TGFX_THUMB 0x02
|
|
#define TGFX_THUMB2 0x04
|
|
#define TGFX_TOP 0x01
|
|
#define TGFX_TOP2 0x08
|
|
|
|
static int tgfx_buttons[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2 };
|
|
static char *tgfx_name = "TurboGraFX Multisystem joystick";
|
|
|
|
static struct tgfx {
|
|
struct pardevice *pd;
|
|
struct timer_list timer;
|
|
struct input_dev dev[7];
|
|
char phys[7][32];
|
|
int sticks;
|
|
int used;
|
|
} *tgfx_base[3];
|
|
|
|
/*
|
|
* tgfx_timer() reads and analyzes TurboGraFX joystick data.
|
|
*/
|
|
|
|
static void tgfx_timer(unsigned long private)
|
|
{
|
|
struct tgfx *tgfx = (void *) private;
|
|
struct input_dev *dev;
|
|
int data1, data2, i;
|
|
|
|
for (i = 0; i < 7; i++)
|
|
if (tgfx->sticks & (1 << i)) {
|
|
|
|
dev = tgfx->dev + i;
|
|
|
|
parport_write_data(tgfx->pd->port, ~(1 << i));
|
|
data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;
|
|
data2 = parport_read_control(tgfx->pd->port) ^ 0x04; /* CAVEAT parport */
|
|
|
|
input_report_abs(dev, ABS_X, !!(data1 & TGFX_RIGHT) - !!(data1 & TGFX_LEFT));
|
|
input_report_abs(dev, ABS_Y, !!(data1 & TGFX_DOWN ) - !!(data1 & TGFX_UP ));
|
|
|
|
input_report_key(dev, BTN_TRIGGER, (data1 & TGFX_TRIGGER));
|
|
input_report_key(dev, BTN_THUMB, (data2 & TGFX_THUMB ));
|
|
input_report_key(dev, BTN_THUMB2, (data2 & TGFX_THUMB2 ));
|
|
input_report_key(dev, BTN_TOP, (data2 & TGFX_TOP ));
|
|
input_report_key(dev, BTN_TOP2, (data2 & TGFX_TOP2 ));
|
|
|
|
input_sync(dev);
|
|
}
|
|
|
|
mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
|
|
}
|
|
|
|
static int tgfx_open(struct input_dev *dev)
|
|
{
|
|
struct tgfx *tgfx = dev->private;
|
|
if (!tgfx->used++) {
|
|
parport_claim(tgfx->pd);
|
|
parport_write_control(tgfx->pd->port, 0x04);
|
|
mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void tgfx_close(struct input_dev *dev)
|
|
{
|
|
struct tgfx *tgfx = dev->private;
|
|
if (!--tgfx->used) {
|
|
del_timer(&tgfx->timer);
|
|
parport_write_control(tgfx->pd->port, 0x00);
|
|
parport_release(tgfx->pd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* tgfx_probe() probes for tg gamepads.
|
|
*/
|
|
|
|
static struct tgfx __init *tgfx_probe(int *config, int nargs)
|
|
{
|
|
struct tgfx *tgfx;
|
|
struct parport *pp;
|
|
int i, j;
|
|
|
|
if (config[0] < 0)
|
|
return NULL;
|
|
|
|
if (nargs < 2) {
|
|
printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
|
|
return NULL;
|
|
}
|
|
|
|
pp = parport_find_number(config[0]);
|
|
|
|
if (!pp) {
|
|
printk(KERN_ERR "turbografx.c: no such parport\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (!(tgfx = kmalloc(sizeof(struct tgfx), GFP_KERNEL))) {
|
|
parport_put_port(pp);
|
|
return NULL;
|
|
}
|
|
memset(tgfx, 0, sizeof(struct tgfx));
|
|
|
|
tgfx->pd = parport_register_device(pp, "turbografx", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
|
|
|
|
parport_put_port(pp);
|
|
|
|
if (!tgfx->pd) {
|
|
printk(KERN_ERR "turbografx.c: parport busy already - lp.o loaded?\n");
|
|
kfree(tgfx);
|
|
return NULL;
|
|
}
|
|
|
|
init_timer(&tgfx->timer);
|
|
tgfx->timer.data = (long) tgfx;
|
|
tgfx->timer.function = tgfx_timer;
|
|
|
|
tgfx->sticks = 0;
|
|
|
|
for (i = 0; i < nargs - 1; i++)
|
|
if (config[i+1] > 0 && config[i+1] < 6) {
|
|
|
|
tgfx->sticks |= (1 << i);
|
|
|
|
tgfx->dev[i].private = tgfx;
|
|
tgfx->dev[i].open = tgfx_open;
|
|
tgfx->dev[i].close = tgfx_close;
|
|
|
|
sprintf(tgfx->phys[i], "%s/input0", tgfx->pd->port->name);
|
|
|
|
tgfx->dev[i].name = tgfx_name;
|
|
tgfx->dev[i].phys = tgfx->phys[i];
|
|
tgfx->dev[i].id.bustype = BUS_PARPORT;
|
|
tgfx->dev[i].id.vendor = 0x0003;
|
|
tgfx->dev[i].id.product = config[i+1];
|
|
tgfx->dev[i].id.version = 0x0100;
|
|
|
|
tgfx->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
|
|
tgfx->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
|
|
|
|
for (j = 0; j < config[i+1]; j++)
|
|
set_bit(tgfx_buttons[j], tgfx->dev[i].keybit);
|
|
|
|
tgfx->dev[i].absmin[ABS_X] = -1; tgfx->dev[i].absmax[ABS_X] = 1;
|
|
tgfx->dev[i].absmin[ABS_Y] = -1; tgfx->dev[i].absmax[ABS_Y] = 1;
|
|
|
|
input_register_device(tgfx->dev + i);
|
|
printk(KERN_INFO "input: %d-button Multisystem joystick on %s\n",
|
|
config[i+1], tgfx->pd->port->name);
|
|
}
|
|
|
|
if (!tgfx->sticks) {
|
|
parport_unregister_device(tgfx->pd);
|
|
kfree(tgfx);
|
|
return NULL;
|
|
}
|
|
|
|
return tgfx;
|
|
}
|
|
|
|
static int __init tgfx_init(void)
|
|
{
|
|
tgfx_base[0] = tgfx_probe(tgfx, tgfx_nargs);
|
|
tgfx_base[1] = tgfx_probe(tgfx_2, tgfx_nargs_2);
|
|
tgfx_base[2] = tgfx_probe(tgfx_3, tgfx_nargs_3);
|
|
|
|
if (tgfx_base[0] || tgfx_base[1] || tgfx_base[2])
|
|
return 0;
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
static void __exit tgfx_exit(void)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < 3; i++)
|
|
if (tgfx_base[i]) {
|
|
for (j = 0; j < 7; j++)
|
|
if (tgfx_base[i]->sticks & (1 << j))
|
|
input_unregister_device(tgfx_base[i]->dev + j);
|
|
parport_unregister_device(tgfx_base[i]->pd);
|
|
}
|
|
}
|
|
|
|
module_init(tgfx_init);
|
|
module_exit(tgfx_exit);
|