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/*
* linux/kernel/chr_drv/mouse.c
*
* Generic mouse open routine by Johan Myreen
*
* Based on code from Linus
*
* Teemu Rantanen's Microsoft Busmouse support and Derrick Cole's
* changes incorporated into 0.97pl4
* by Peter Cervasio (pete%q106fm.uucp@wupost.wustl.edu) (08SEP92)
* See busmouse.c for particulars.
*
* Made things a lot mode modular - easy to compile in just one or two
* of the mouse drivers, as they are now completely independent. Linus.
*/
#include <linux/fs.h>
#include <linux/errno.h>
#include <linux/mouse.h>
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/major.h>
/*
* note that you can remove any or all of the drivers by undefining
* the minor values in <linux/mouse.h>
*/
extern struct file_operations bus_mouse_fops;
extern struct file_operations psaux_fops;
extern struct file_operations ms_bus_mouse_fops;
extern struct file_operations atixl_busmouse_fops;
extern unsigned long bus_mouse_init(unsigned long);
extern unsigned long psaux_init(unsigned long);
extern unsigned long ms_bus_mouse_init(unsigned long);
extern unsigned long atixl_busmouse_init(unsigned long);
static int mouse_open(struct inode * inode, struct file * file)
{
int minor = MINOR(inode->i_rdev);
switch (minor) {
#ifdef CONFIG_BUSMOUSE
case BUSMOUSE_MINOR:
file->f_op = &bus_mouse_fops;
break;
#endif
#if defined CONFIG_PSMOUSE || defined CONFIG_82C710_MOUSE
case PSMOUSE_MINOR:
file->f_op = &psaux_fops;
break;
#endif
#ifdef CONFIG_MS_BUSMOUSE
case MS_BUSMOUSE_MINOR:
file->f_op = &ms_bus_mouse_fops;
break;
#endif
#ifdef CONFIG_ATIXL_BUSMOUSE
case ATIXL_BUSMOUSE_MINOR:
file->f_op = &atixl_busmouse_fops;
break;
#endif
default:
return -ENODEV;
}
return file->f_op->open(inode,file);
}
static struct file_operations mouse_fops = {
NULL, /* seek */
NULL, /* read */
NULL, /* write */
NULL, /* readdir */
NULL, /* select */
NULL, /* ioctl */
NULL, /* mmap */
mouse_open,
NULL /* release */
};
unsigned long mouse_init(unsigned long kmem_start)
{
#ifdef CONFIG_BUSMOUSE
kmem_start = bus_mouse_init(kmem_start);
#endif
#if defined CONFIG_PSMOUSE || defined CONFIG_82C710_MOUSE
kmem_start = psaux_init(kmem_start);
#endif
#ifdef CONFIG_MS_BUSMOUSE
kmem_start = ms_bus_mouse_init(kmem_start);
#endif
#ifdef CONFIG_ATIXL_BUSMOUSE
kmem_start = atixl_busmouse_init(kmem_start);
#endif
if (register_chrdev(MOUSE_MAJOR,"mouse",&mouse_fops))
printk("unable to get major %d for mouse devices\n",
MOUSE_MAJOR);
return kmem_start;
}