Input: remove scan_keyb driver

This driver is currently unused (unreferenced) besides the fact
that it's broken.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/char/scan_keyb.c

-/*
- *	$Id: scan_keyb.c,v 1.2 2000/07/04 06:24:42 yaegashi Exp $ 
- *	Copyright (C) 2000 YAEGASHI Takeshi
- *	Generic scan keyboard driver
- */
-
-#include <linux/spinlock.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/mm.h>
-#include <linux/signal.h>
-#include <linux/init.h>
-#include <linux/kbd_ll.h>
-#include <linux/delay.h>
-#include <linux/random.h>
-#include <linux/poll.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/kbd_kern.h>
-#include <linux/timer.h>
-
-#define SCANHZ	(HZ/20)
-
-struct scan_keyboard {
-	struct scan_keyboard *next;
-	int (*scan)(unsigned char *buffer);
-	const unsigned char *table;
-	unsigned char *s0, *s1;
-	int length;
-};
-
-static int scan_jiffies=0;
-static struct scan_keyboard *keyboards=NULL;
-struct timer_list scan_timer;
-
-static void check_kbd(const unsigned char *table,
-		      unsigned char *new, unsigned char *old, int length)
-{
-	int need_tasklet_schedule=0;
-	unsigned int xor, bit;
-	
-	while(length-->0) {
-		if((xor=*new^*old)==0) {
-			table+=8;
-		}
-		else {
-			for(bit=0x01; bit<0x100; bit<<=1) {
-				if(xor&bit) {
-					handle_scancode(*table, !(*new&bit));
-					need_tasklet_schedule=1;
-#if 0
-					printk("0x%x %s\n", *table, (*new&bit)?"released":"pressed");
-#endif
-				}
-				table++;
-			}
-		}
-		new++; old++;
-	}
-
-	if(need_tasklet_schedule)
-		tasklet_schedule(&keyboard_tasklet);
-}
-
-
-static void scan_kbd(unsigned long dummy)
-{
-	struct scan_keyboard *kbd;
-
-	scan_jiffies++;
-
-	for(kbd=keyboards; kbd!=NULL; kbd=kbd->next) {
-		if(scan_jiffies&1) {
-			if(!kbd->scan(kbd->s0))
-				check_kbd(kbd->table,
-					  kbd->s0, kbd->s1, kbd->length);
-			else
-				memcpy(kbd->s0, kbd->s1, kbd->length);
-		}
-		else {
-			if(!kbd->scan(kbd->s1))
-				check_kbd(kbd->table,
-					  kbd->s1, kbd->s0, kbd->length);
-			else
-				memcpy(kbd->s1, kbd->s0, kbd->length);
-		}
-		
-	}
-
-	init_timer(&scan_timer);
-	scan_timer.expires = jiffies + SCANHZ;
-	scan_timer.data = 0;
-	scan_timer.function = scan_kbd;
-	add_timer(&scan_timer);
-}
-
-
-int register_scan_keyboard(int (*scan)(unsigned char *buffer),
-			   const unsigned char *table,
-			   int length)
-{
-	struct scan_keyboard *kbd;
-
-	kbd = kmalloc(sizeof(struct scan_keyboard), GFP_KERNEL);
-	if (kbd == NULL)
-		goto error_out;
-
-	kbd->scan=scan;
-	kbd->table=table;
-	kbd->length=length;
-
-	kbd->s0 = kmalloc(length, GFP_KERNEL);
-	if (kbd->s0 == NULL)
-		goto error_free_kbd;
-
-	kbd->s1 = kmalloc(length, GFP_KERNEL);
-	if (kbd->s1 == NULL)
-		goto error_free_s0;
-
-	memset(kbd->s0, -1, kbd->length);
-	memset(kbd->s1, -1, kbd->length);
-	
-	kbd->next=keyboards;
-	keyboards=kbd;
-
-	return 0;
-
- error_free_s0:
-	kfree(kbd->s0);
-
- error_free_kbd:
-	kfree(kbd);
-
- error_out:
-	return -ENOMEM;
-}
-			      
-			      
-void __init scan_kbd_init(void)
-{
-	init_timer(&scan_timer);
-	scan_timer.expires = jiffies + SCANHZ;
-	scan_timer.data = 0;
-	scan_timer.function = scan_kbd;
-	add_timer(&scan_timer);
-
-	printk(KERN_INFO "Generic scan keyboard driver initialized\n");
-}

drivers/char/scan_keyb.h

-#ifndef	__DRIVER_CHAR_SCAN_KEYB_H
-#define	__DRIVER_CHAR_SCAN_KEYB_H
-/*
- *	$Id: scan_keyb.h,v 1.1 2000/06/10 21:45:30 yaegashi Exp $
- *	Copyright (C) 2000 YAEGASHI Takeshi
- *	Generic scan keyboard driver
- */
-
-int register_scan_keyboard(int (*scan)(unsigned char *buffer),
-			   const unsigned char *table,
-			   int length);
-
-void __init scan_kbd_init(void);
-
-#endif