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> 21 * 22 * Changes/Revisions: 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 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 */ 32#ifndef __UINPUT_H_ 33#define __UINPUT_H_ 34 35#include <uapi/linux/uinput.h> 36 37#define UINPUT_NAME "uinput" 38#define UINPUT_BUFFER_SIZE 16 39#define UINPUT_NUM_REQUESTS 16 40 41enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED }; 42 43struct uinput_request { 44 unsigned int id; 45 unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */ 46 47 int retval; 48 struct completion done; 49 50 union { 51 unsigned int effect_id; 52 struct { 53 struct ff_effect *effect; 54 struct ff_effect *old; 55 } upload; 56 } u; 57}; 58 59struct uinput_device { 60 struct input_dev *dev; 61 struct mutex mutex; 62 enum uinput_state state; 63 wait_queue_head_t waitq; 64 unsigned char ready; 65 unsigned char head; 66 unsigned char tail; 67 struct input_event buff[UINPUT_BUFFER_SIZE]; 68 unsigned int ff_effects_max; 69 70 struct uinput_request *requests[UINPUT_NUM_REQUESTS]; 71 wait_queue_head_t requests_waitq; 72 spinlock_t requests_lock; 73}; 74#endif /* __UINPUT_H_ */ 75