[mirror_ubuntu-bionic-kernel.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:
 *	0.3	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:
ff462551 AH	23	* 0.3 24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
	24	* - update ff support for the changes in kernel interface
	25	* - add UINPUT_VERSION
1da177e4 LT	26	* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
	27	* - added force feedback support
	28	* - added UI_SET_PHYS
	29	* 0.1 20/06/2002
	30	* - first public version
	31	*/
607ca46e DH	32	#ifndef __UINPUT_H_
607ca46e DH	33	#define __UINPUT_H_
ff462551	34
607ca46e	35	#include <uapi/linux/uinput.h>
ff462551	36
1da177e4 LT	37	#define UINPUT_NAME "uinput"
	38	#define UINPUT_BUFFER_SIZE 16
	39	#define UINPUT_NUM_REQUESTS 16
	40
29506415	41	enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
1da177e4 LT	42
1da177e4 LT	43	struct uinput_request {
c5b3533a DT	44	unsigned int id;
c5b3533a DT	45	unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */
1da177e4 LT	46
1da177e4 LT	47	int retval;
0048e603	48	struct completion done;
1da177e4 LT	49
1da177e4 LT	50	union {
c5b3533a	51	unsigned int effect_id;
ff462551 AH	52	struct {
	53	struct ff_effect *effect;
	54	struct ff_effect *old;
	55	} upload;
1da177e4 LT	56	} u;
	57	};
	58
	59	struct uinput_device {
	60	struct input_dev *dev;
221979aa	61	struct mutex mutex;
29506415	62	enum uinput_state state;
1da177e4	63	wait_queue_head_t waitq;
29506415 DT	64	unsigned char ready;
	65	unsigned char head;
	66	unsigned char tail;
1da177e4	67	struct input_event buff[UINPUT_BUFFER_SIZE];
05be8b81	68	unsigned int ff_effects_max;
1da177e4 LT	69
	70	struct uinput_request *requests[UINPUT_NUM_REQUESTS];
	71	wait_queue_head_t requests_waitq;
0048e603	72	spinlock_t requests_lock;
1da177e4	73	};
1da177e4	74	#endif /* __UINPUT_H_ */