/*
* The input core
*
* Copyright (c) 1999-2002 Vojtech Pavlik
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/major.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/device.h>
#include <linux/mutex.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
MODULE_DESCRIPTION("Input core");
MODULE_LICENSE("GPL");
#define INPUT_DEVICES 256
static LIST_HEAD(input_dev_list);
static LIST_HEAD(input_handler_list);
static struct input_handler *input_table[8];
/**
* input_event() - report new input event
* @dev: device that generated the event
* @type: type of the event
* @code: event code
* @value: value of the event
*
* This function should be used by drivers implementing various input devices
* See also input_inject_event()
*/
void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct input_handle *handle;
if (type > EV_MAX || !test_bit(type, dev->evbit))
return;
add_input_randomness(type, code, value);
switch (type) {
case EV_SYN:
switch (code) {
case SYN_CONFIG:
if (dev->event)
dev->event(dev, type, code, value);
break;
case SYN_REPORT:
if (dev->sync)
return;
dev->sync = 1;
break;
}
break;
case EV_KEY:
if (code > KEY_MAX || !test_bit(code, dev->keybit) || !!test_bit(code, dev->key) == value)
return;
if (value == 2)
break;
change_bit(code, dev->key);
if (test_bit(EV_REP, dev->evbit) && dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] && dev->timer.data && value) {
dev->repeat_key = code;
mod_timer(&dev->timer, jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]));
}
break;
case EV_SW:
if (code > SW_MAX || !test_bit(code, dev->swbit) || !!test_bit(code, dev->sw) == value)
return;
change_bit(code, dev->sw);
break;
case EV_ABS:
if (code > ABS_MAX || !test_bit(code, dev->absbit))
return;