Viewing file:  atarimouse.c (3.08 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* Atari Mouse Driver for Linux
* by Robert de Vries (robert@and.nl) 19Jul93
*
* 16 Nov 1994 Andreas Schwab
* Compatibility with busmouse
* Support for three button mouse (shamelessly stolen from MiNT)
* third button wired to one of the joystick directions on joystick 1
*
* 1996/02/11 Andreas Schwab
* Module support
* Allow multiple open's
*
* Converted to use new generic busmouse code. 5 Apr 1998
* Russell King <rmk@arm.uk.linux.org>
*/
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/miscdevice.h>
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/logibusmouse.h>
#include <asm/setup.h>
#include <asm/atarikb.h>
#include <asm/uaccess.h>
#include "busmouse.h"
static int msedev;
static int mouse_threshold[2] = {2,2};
MODULE_PARM(mouse_threshold, "2i");
extern int atari_mouse_buttons;
static void atari_mouse_interrupt(char *buf)
{
int buttons;
/* ikbd_mouse_disable(); */
buttons = ((buf[0] & 1)
| ((buf[0] & 2) << 1)
| (atari_mouse_buttons & 2));
atari_mouse_buttons = buttons;
busmouse_add_movementbuttons(msedev, buf[1], -buf[2], buttons ^ 7);
/* ikbd_mouse_rel_pos(); */
}
static int release_mouse(struct inode *inode, struct file *file)
{
ikbd_mouse_disable();
atari_mouse_interrupt_hook = NULL;
return 0;
}
static int open_mouse(struct inode *inode, struct file *file)
{
atari_mouse_buttons = 0;
ikbd_mouse_y0_top ();
ikbd_mouse_thresh (mouse_threshold[0], mouse_threshold[1]);
ikbd_mouse_rel_pos();
atari_mouse_interrupt_hook = atari_mouse_interrupt;
return 0;
}
static struct busmouse atarimouse = {
ATARIMOUSE_MINOR, "atarimouse", THIS_MODULE, open_mouse, release_mouse, 0
};
static int __init atari_mouse_init(void)
{
if (!MACH_IS_ATARI)
return -ENODEV;
msedev = register_busmouse(&atarimouse);
if (msedev < 0)
printk(KERN_WARNING "Unable to register Atari mouse driver.\n");
else
printk(KERN_INFO "Atari mouse installed.\n");
return msedev < 0 ? msedev : 0;
}
#ifndef MODULE
#define MIN_THRESHOLD 1
#define MAX_THRESHOLD 20 /* more seems not reasonable... */
static int __init atari_mouse_setup( char *str )
{
int ints[8];
str = get_options(str, ARRAY_SIZE(ints), ints);
if (ints[0] < 1) {
printk(KERN_ERR "atari_mouse_setup: no arguments!\n" );
return 0;
}
else if (ints[0] > 2) {
printk(KERN_WARNING "atari_mouse_setup: too many arguments\n" );
}
if (ints[1] < MIN_THRESHOLD || ints[1] > MAX_THRESHOLD)
printk(KERN_WARNING "atari_mouse_setup: bad threshold value (ignored)\n" );
else {
mouse_threshold[0] = ints[1];
mouse_threshold[1] = ints[1];
if (ints[0] > 1) {
if (ints[2] < MIN_THRESHOLD || ints[2] > MAX_THRESHOLD)
printk(KERN_WARNING "atari_mouse_setup: bad threshold value (ignored)\n" );
else
mouse_threshold[1] = ints[2];
}
}
return 1;
}
__setup("atarimouse=",atari_mouse_setup);
#endif /* !MODULE */
static void __exit atari_mouse_cleanup (void)
{
unregister_busmouse(msedev);
}
module_init(atari_mouse_init);
module_exit(atari_mouse_cleanup);
MODULE_LICENSE("GPL");
|