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/*
* 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:
* 0.4 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_ */