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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>) |
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_ |
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 | |
50 | struct uinput_request { | |
c5b3533a DT |
51 | unsigned int id; |
52 | unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */ | |
1da177e4 LT |
53 | |
54 | int retval; | |
0048e603 | 55 | struct completion done; |
1da177e4 LT |
56 | |
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_ */ |