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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 | |
41 | enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED }; |
42 | |
43 | struct 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 | |
59 | struct 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 |
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