[linux-2.6-block.git] / include / linux / uinput.h

/*
 *  User level driver support for input subsystem
 *
 * Heavily based on evdev.c by Vojtech Pavlik
 *
 * 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
 *
 * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
 *
 * Changes/Revisions:
 *	0.5	08/13/2015 (David Herrmann <dh.herrmann@gmail.com> &
 *			    Benjamin Tissoires <benjamin.tissoires@redhat.com>)
 *		- add UI_DEV_SETUP ioctl
 *		- add UI_ABS_SETUP ioctl
 *		- add UI_GET_VERSION ioctl
 *	0.4	01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
 *		- add UI_GET_SYSNAME ioctl
 *	0.3	24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
 *		- update ff support for the changes in kernel interface
 *		- add UINPUT_VERSION
 *	0.2	16/10/2004 (Micah Dowty <micah@navi.cx>)
 *		- added force feedback support
 *             - added UI_SET_PHYS
 *	0.1	20/06/2002
 *		- first public version
 */
#ifndef __UINPUT_H_
#define __UINPUT_H_

#include <uapi/linux/uinput.h>

#define UINPUT_NAME		"uinput"
#define UINPUT_BUFFER_SIZE	16
#define UINPUT_NUM_REQUESTS	16

enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };

struct uinput_request {
	unsigned int		id;
	unsigned int		code;	/* UI_FF_UPLOAD, UI_FF_ERASE */

	int			retval;
	struct completion	done;

	union {
		unsigned int	effect_id;
		struct {
			struct ff_effect *effect;
			struct ff_effect *old;
		} upload;
	} u;
};

struct uinput_device {
	struct input_dev	*dev;
	struct mutex		mutex;
	enum uinput_state	state;
	wait_queue_head_t	waitq;
	unsigned char		ready;
	unsigned char		head;
	unsigned char		tail;
	struct input_event	buff[UINPUT_BUFFER_SIZE];
	unsigned int		ff_effects_max;

	struct uinput_request	*requests[UINPUT_NUM_REQUESTS];
	wait_queue_head_t	requests_waitq;
	spinlock_t		requests_lock;
};
#endif	/* __UINPUT_H_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* User level driver support for input subsystem
	3	*
	4	* Heavily based on evdev.c by Vojtech Pavlik
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
221979aa	21	*
1da177e4	22	* Changes/Revisions:
052876f8 BT	23	* 0.5 08/13/2015 (David Herrmann <dh.herrmann@gmail.com> &
	24	* Benjamin Tissoires <benjamin.tissoires@redhat.com>)
	25	* - add UI_DEV_SETUP ioctl
	26	* - add UI_ABS_SETUP ioctl
	27	* - add UI_GET_VERSION ioctl
e3480a61 BT	28	* 0.4 01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
e3480a61 BT	29	* - add UI_GET_SYSNAME ioctl
ff462551 AH	30	* 0.3 24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
	31	* - update ff support for the changes in kernel interface
	32	* - add UINPUT_VERSION
1da177e4 LT	33	* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
	34	* - added force feedback support
	35	* - added UI_SET_PHYS
	36	* 0.1 20/06/2002
	37	* - first public version
	38	*/
607ca46e DH	39	#ifndef __UINPUT_H_
607ca46e DH	40	#define __UINPUT_H_
ff462551	41
607ca46e	42	#include <uapi/linux/uinput.h>
ff462551	43
1da177e4 LT	44	#define UINPUT_NAME "uinput"
	45	#define UINPUT_BUFFER_SIZE 16
	46	#define UINPUT_NUM_REQUESTS 16
	47
29506415	48	enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
1da177e4 LT	49
1da177e4 LT	50	struct uinput_request {
c5b3533a DT	51	unsigned int id;
c5b3533a DT	52	unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */
1da177e4 LT	53
1da177e4 LT	54	int retval;
0048e603	55	struct completion done;
1da177e4 LT	56
1da177e4 LT	57	union {
c5b3533a	58	unsigned int effect_id;
ff462551 AH	59	struct {
	60	struct ff_effect *effect;
	61	struct ff_effect *old;
	62	} upload;
1da177e4 LT	63	} u;
	64	};
	65
	66	struct uinput_device {
	67	struct input_dev *dev;
221979aa	68	struct mutex mutex;
29506415	69	enum uinput_state state;
1da177e4	70	wait_queue_head_t waitq;
29506415 DT	71	unsigned char ready;
	72	unsigned char head;
	73	unsigned char tail;
1da177e4	74	struct input_event buff[UINPUT_BUFFER_SIZE];
05be8b81	75	unsigned int ff_effects_max;
1da177e4 LT	76
	77	struct uinput_request *requests[UINPUT_NUM_REQUESTS];
	78	wait_queue_head_t requests_waitq;
0048e603	79	spinlock_t requests_lock;
1da177e4	80	};
1da177e4	81	#endif /* __UINPUT_H_ */