/*
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* User level driver support for input subsystem
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*
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* Heavily based on evdev.c by Vojtech Pavlik
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
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*
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* Changes/Revisions:
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* 0.5 08/13/2015 (David Herrmann <dh.herrmann@gmail.com> &
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* Benjamin Tissoires <benjamin.tissoires@redhat.com>)
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* - add UI_DEV_SETUP ioctl
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* - add UI_ABS_SETUP ioctl
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* - add UI_GET_VERSION ioctl
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* 0.4 01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
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* - add UI_GET_SYSNAME ioctl
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* 0.3 24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
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* - update ff support for the changes in kernel interface
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* - add UINPUT_VERSION
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* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
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* - added force feedback support
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* - added UI_SET_PHYS
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* 0.1 20/06/2002
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* - first public version
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*/
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#ifndef __UINPUT_H_
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#define __UINPUT_H_
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#include <uapi/linux/uinput.h>
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#define UINPUT_NAME "uinput"
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#define UINPUT_BUFFER_SIZE 16
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#define UINPUT_NUM_REQUESTS 16
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enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
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struct uinput_request {
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unsigned int id;
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unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */
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int retval;
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struct completion done;
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union {
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unsigned int effect_id;
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struct {
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struct ff_effect *effect;
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struct ff_effect *old;
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} upload;
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} u;
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};
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struct uinput_device {
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struct input_dev *dev;
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struct mutex mutex;
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enum uinput_state state;
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wait_queue_head_t waitq;
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unsigned char ready;
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unsigned char head;
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unsigned char tail;
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struct input_event buff[UINPUT_BUFFER_SIZE];
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unsigned int ff_effects_max;
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struct uinput_request *requests[UINPUT_NUM_REQUESTS];
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wait_queue_head_t requests_waitq;
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spinlock_t requests_lock;
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};
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#endif /* __UINPUT_H_ */
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