[linux-2.6-block.git] / drivers / input / evbug.c

/*
 *  Copyright (c) 1999-2001 Vojtech Pavlik
 */

/*
 *  Input driver event debug module - dumps all events into syslog
 */

/*
 * 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
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/device.h>

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Input driver event debug module");
MODULE_LICENSE("GPL");

static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
	printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
	       dev_name(&handle->dev->dev), type, code, value);
}

static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
			 const struct input_device_id *id)
{
	struct input_handle *handle;
	int error;

	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
	if (!handle)
		return -ENOMEM;

	handle->dev = dev;
	handle->handler = handler;
	handle->name = "evbug";

	error = input_register_handle(handle);
	if (error)
		goto err_free_handle;

	error = input_open_device(handle);
	if (error)
		goto err_unregister_handle;

	printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
	       dev_name(&dev->dev),
	       dev->name ?: "unknown",
	       dev->phys ?: "unknown");

	return 0;

 err_unregister_handle:
	input_unregister_handle(handle);
 err_free_handle:
	kfree(handle);
	return error;
}

static void evbug_disconnect(struct input_handle *handle)
{
	printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
	       dev_name(&handle->dev->dev));

	input_close_device(handle);
	input_unregister_handle(handle);
	kfree(handle);
}

static const struct input_device_id evbug_ids[] = {
	{ .driver_info = 1 },	/* Matches all devices */
	{ },			/* Terminating zero entry */
};

MODULE_DEVICE_TABLE(input, evbug_ids);

static struct input_handler evbug_handler = {
	.event =	evbug_event,
	.connect =	evbug_connect,
	.disconnect =	evbug_disconnect,
	.name =		"evbug",
	.id_table =	evbug_ids,
};

static int __init evbug_init(void)
{
	return input_register_handler(&evbug_handler);
}

static void __exit evbug_exit(void)
{
	input_unregister_handler(&evbug_handler);
}

module_init(evbug_init);
module_exit(evbug_exit);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (c) 1999-2001 Vojtech Pavlik
	3	*/
	4
	5	/*
	6	* Input driver event debug module - dumps all events into syslog
	7	*/
	8
	9	/*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1da177e4 LT	23	*/
1da177e4 LT	24
da0c4901 JP	25	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
da0c4901 JP	26
1da177e4 LT	27	#include <linux/slab.h>
	28	#include <linux/module.h>
	29	#include <linux/input.h>
	30	#include <linux/init.h>
	31	#include <linux/device.h>
	32
	33	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	34	MODULE_DESCRIPTION("Input driver event debug module");
	35	MODULE_LICENSE("GPL");
	36
1da177e4 LT	37	static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
1da177e4 LT	38	{
da0c4901 JP	39	printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
da0c4901 JP	40	dev_name(&handle->dev->dev), type, code, value);
1da177e4 LT	41	}
1da177e4 LT	42
5b2a0826 DT	43	static int evbug_connect(struct input_handler handler, struct input_dev dev,
5b2a0826 DT	44	const struct input_device_id *id)
1da177e4 LT	45	{
1da177e4 LT	46	struct input_handle *handle;
5b2a0826	47	int error;
1da177e4	48
5b2a0826 DT	49	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
	50	if (!handle)
	51	return -ENOMEM;
1da177e4 LT	52
	53	handle->dev = dev;
	54	handle->handler = handler;
5b2a0826 DT	55	handle->name = "evbug";
	56
	57	error = input_register_handle(handle);
	58	if (error)
	59	goto err_free_handle;
1da177e4	60
5b2a0826 DT	61	error = input_open_device(handle);
	62	if (error)
	63	goto err_unregister_handle;
1da177e4	64
da0c4901 JP	65	printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
	66	dev_name(&dev->dev),
	67	dev->name ?: "unknown",
	68	dev->phys ?: "unknown");
1da177e4	69
5b2a0826 DT	70	return 0;
	71
	72	err_unregister_handle:
	73	input_unregister_handle(handle);
	74	err_free_handle:
	75	kfree(handle);
	76	return error;
1da177e4 LT	77	}
	78
	79	static void evbug_disconnect(struct input_handle *handle)
	80	{
da0c4901 JP	81	printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
da0c4901 JP	82	dev_name(&handle->dev->dev));
1da177e4 LT	83
1da177e4 LT	84	input_close_device(handle);
5b2a0826	85	input_unregister_handle(handle);
1da177e4 LT	86	kfree(handle);
	87	}
	88
66e66118	89	static const struct input_device_id evbug_ids[] = {
1da177e4 LT	90	{ .driver_info = 1 }, /* Matches all devices */
	91	{ }, /* Terminating zero entry */
	92	};
	93
	94	MODULE_DEVICE_TABLE(input, evbug_ids);
	95
	96	static struct input_handler evbug_handler = {
	97	.event = evbug_event,
	98	.connect = evbug_connect,
	99	.disconnect = evbug_disconnect,
	100	.name = "evbug",
	101	.id_table = evbug_ids,
	102	};
	103
	104	static int __init evbug_init(void)
	105	{
4263cf0f	106	return input_register_handler(&evbug_handler);
1da177e4 LT	107	}
	108
	109	static void __exit evbug_exit(void)
	110	{
	111	input_unregister_handler(&evbug_handler);
	112	}
	113
	114	module_init(evbug_init);
	115	module_exit(evbug_exit);