Linux/include/linux/input.h

  1 #ifndef _INPUT_H
  2 #define _INPUT_H
  3 
  4 /*
  5  * Copyright (c) 1999-2002 Vojtech Pavlik
  6  *
  7  * This program is free software; you can redistribute it and/or modify it
  8  * under the terms of the GNU General Public License version 2 as published by
  9  * the Free Software Foundation.
 10  */
 11 
 12 #ifdef __KERNEL__
 13 #include <linux/time.h>
 14 #include <linux/list.h>
 15 #else
 16 #include <sys/time.h>
 17 #include <sys/ioctl.h>
 18 #include <sys/types.h>
 19 #include <linux/types.h>
 20 #endif
 21 
 22 /*
 23  * The event structure itself
 24  */
 25 
 26 struct input_event {
 27         struct timeval time;
 28         __u16 type;
 29         __u16 code;
 30         __s32 value;
 31 };
 32 
 33 /*
 34  * Protocol version.
 35  */
 36 
 37 #define EV_VERSION              0x010001
 38 
 39 /*
 40  * IOCTLs (0x00 - 0x7f)
 41  */
 42 
 43 struct input_id {
 44         __u16 bustype;
 45         __u16 vendor;
 46         __u16 product;
 47         __u16 version;
 48 };
 49 
 50 /**
 51  * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls
 52  * @value: latest reported value for the axis.
 53  * @minimum: specifies minimum value for the axis.
 54  * @maximum: specifies maximum value for the axis.
 55  * @fuzz: specifies fuzz value that is used to filter noise from
 56  *      the event stream.
 57  * @flat: values that are within this value will be discarded by
 58  *      joydev interface and reported as 0 instead.
 59  * @resolution: specifies resolution for the values reported for
 60  *      the axis.
 61  *
 62  * Note that input core does not clamp reported values to the
 63  * [minimum, maximum] limits, such task is left to userspace.
 64  *
 65  * Resolution for main axes (ABS_X, ABS_Y, ABS_Z) is reported in
 66  * units per millimeter (units/mm), resolution for rotational axes
 67  * (ABS_RX, ABS_RY, ABS_RZ) is reported in units per radian.
 68  */
 69 struct input_absinfo {
 70         __s32 value;
 71         __s32 minimum;
 72         __s32 maximum;
 73         __s32 fuzz;
 74         __s32 flat;
 75         __s32 resolution;
 76 };
 77 
 78 /**
 79  * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls
 80  * @scancode: scancode represented in machine-endian form.
 81  * @len: length of the scancode that resides in @scancode buffer.
 82  * @index: index in the keymap, may be used instead of scancode
 83  * @flags: allows to specify how kernel should handle the request. For
 84  *      example, setting INPUT_KEYMAP_BY_INDEX flag indicates that kernel
 85  *      should perform lookup in keymap by @index instead of @scancode
 86  * @keycode: key code assigned to this scancode
 87  *
 88  * The structure is used to retrieve and modify keymap data. Users have
 89  * option of performing lookup either by @scancode itself or by @index
 90  * in keymap entry. EVIOCGKEYCODE will also return scancode or index
 91  * (depending on which element was used to perform lookup).
 92  */
 93 struct input_keymap_entry {
 94 #define INPUT_KEYMAP_BY_INDEX   (1 << 0)
 95         __u8  flags;
 96         __u8  len;
 97         __u16 index;
 98         __u32 keycode;
 99         __u8  scancode[32];
100 };
101 
102 #define EVIOCGVERSION           _IOR('E', 0x01, int)                    /* get driver version */
103 #define EVIOCGID                _IOR('E', 0x02, struct input_id)        /* get device ID */
104 #define EVIOCGREP               _IOR('E', 0x03, unsigned int[2])        /* get repeat settings */
105 #define EVIOCSREP               _IOW('E', 0x03, unsigned int[2])        /* set repeat settings */
106 
107 #define EVIOCGKEYCODE           _IOR('E', 0x04, unsigned int[2])        /* get keycode */
108 #define EVIOCGKEYCODE_V2        _IOR('E', 0x04, struct input_keymap_entry)
109 #define EVIOCSKEYCODE           _IOW('E', 0x04, unsigned int[2])        /* set keycode */
110 #define EVIOCSKEYCODE_V2        _IOW('E', 0x04, struct input_keymap_entry)
111 
112 #define EVIOCGNAME(len)         _IOC(_IOC_READ, 'E', 0x06, len)         /* get device name */
113 #define EVIOCGPHYS(len)         _IOC(_IOC_READ, 'E', 0x07, len)         /* get physical location */
114 #define EVIOCGUNIQ(len)         _IOC(_IOC_READ, 'E', 0x08, len)         /* get unique identifier */
115 #define EVIOCGPROP(len)         _IOC(_IOC_READ, 'E', 0x09, len)         /* get device properties */
116 
117 #define EVIOCGKEY(len)          _IOC(_IOC_READ, 'E', 0x18, len)         /* get global key state */
118 #define EVIOCGLED(len)          _IOC(_IOC_READ, 'E', 0x19, len)         /* get all LEDs */
119 #define EVIOCGSND(len)          _IOC(_IOC_READ, 'E', 0x1a, len)         /* get all sounds status */
120 #define EVIOCGSW(len)           _IOC(_IOC_READ, 'E', 0x1b, len)         /* get all switch states */
121 
122 #define EVIOCGBIT(ev,len)       _IOC(_IOC_READ, 'E', 0x20 + ev, len)    /* get event bits */
123 #define EVIOCGABS(abs)          _IOR('E', 0x40 + abs, struct input_absinfo)     /* get abs value/limits */
124 #define EVIOCSABS(abs)          _IOW('E', 0xc0 + abs, struct input_absinfo)     /* set abs value/limits */
125 
126 #define EVIOCSFF                _IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect))   /* send a force effect to a force feedback device */
127 #define EVIOCRMFF               _IOW('E', 0x81, int)                    /* Erase a force effect */
128 #define EVIOCGEFFECTS           _IOR('E', 0x84, int)                    /* Report number of effects playable at the same time */
129 
130 #define EVIOCGRAB               _IOW('E', 0x90, int)                    /* Grab/Release device */
131 
132 /*
133  * Device properties and quirks
134  */
135 
136 #define INPUT_PROP_POINTER              0x00    /* needs a pointer */
137 #define INPUT_PROP_DIRECT               0x01    /* direct input devices */
138 #define INPUT_PROP_BUTTONPAD            0x02    /* has button(s) under pad */
139 #define INPUT_PROP_SEMI_MT              0x03    /* touch rectangle only */
140 
141 #define INPUT_PROP_MAX                  0x1f
142 #define INPUT_PROP_CNT                  (INPUT_PROP_MAX + 1)
143 
144 /*
145  * Event types
146  */
147 
148 #define EV_SYN                  0x00
149 #define EV_KEY                  0x01
150 #define EV_REL                  0x02
151 #define EV_ABS                  0x03
152 #define EV_MSC                  0x04
153 #define EV_SW                   0x05
154 #define EV_LED                  0x11
155 #define EV_SND                  0x12
156 #define EV_REP                  0x14
157 #define EV_FF                   0x15
158 #define EV_PWR                  0x16
159 #define EV_FF_STATUS            0x17
160 #define EV_MAX                  0x1f
161 #define EV_CNT                  (EV_MAX+1)
162 
163 /*
164  * Synchronization events.
165  */
166 
167 #define SYN_REPORT              0
168 #define SYN_CONFIG              1
169 #define SYN_MT_REPORT           2
170 
171 /*
172  * Keys and buttons
173  *
174  * Most of the keys/buttons are modeled after USB HUT 1.12
175  * (see http://www.usb.org/developers/hidpage).
176  * Abbreviations in the comments:
177  * AC - Application Control
178  * AL - Application Launch Button
179  * SC - System Control
180  */
181 
182 #define KEY_RESERVED            0
183 #define KEY_ESC                 1
184 #define KEY_1                   2
185 #define KEY_2                   3
186 #define KEY_3                   4
187 #define KEY_4                   5
188 #define KEY_5                   6
189 #define KEY_6                   7
190 #define KEY_7                   8
191 #define KEY_8                   9
192 #define KEY_9                   10
193 #define KEY_0                   11
194 #define KEY_MINUS               12
195 #define KEY_EQUAL               13
196 #define KEY_BACKSPACE           14
197 #define KEY_TAB                 15
198 #define KEY_Q                   16
199 #define KEY_W                   17
200 #define KEY_E                   18
201 #define KEY_R                   19
202 #define KEY_T                   20
203 #define KEY_Y                   21
204 #define KEY_U                   22
205 #define KEY_I                   23
206 #define KEY_O                   24
207 #define KEY_P                   25
208 #define KEY_LEFTBRACE           26
209 #define KEY_RIGHTBRACE          27
210 #define KEY_ENTER               28
211 #define KEY_LEFTCTRL            29
212 #define KEY_A                   30
213 #define KEY_S                   31
214 #define KEY_D                   32
215 #define KEY_F                   33
216 #define KEY_G                   34
217 #define KEY_H                   35
218 #define KEY_J                   36
219 #define KEY_K                   37
220 #define KEY_L                   38
221 #define KEY_SEMICOLON           39
222 #define KEY_APOSTROPHE          40
223 #define KEY_GRAVE               41
224 #define KEY_LEFTSHIFT           42
225 #define KEY_BACKSLASH           43
226 #define KEY_Z                   44
227 #define KEY_X                   45
228 #define KEY_C                   46
229 #define KEY_V                   47
230 #define KEY_B                   48
231 #define KEY_N                   49
232 #define KEY_M                   50
233 #define KEY_COMMA               51
234 #define KEY_DOT                 52
235 #define KEY_SLASH               53
236 #define KEY_RIGHTSHIFT          54
237 #define KEY_KPASTERISK          55
238 #define KEY_LEFTALT             56
239 #define KEY_SPACE               57
240 #define KEY_CAPSLOCK            58
241 #define KEY_F1                  59
242 #define KEY_F2                  60
243 #define KEY_F3                  61
244 #define KEY_F4                  62
245 #define KEY_F5                  63
246 #define KEY_F6                  64
247 #define KEY_F7                  65
248 #define KEY_F8                  66
249 #define KEY_F9                  67
250 #define KEY_F10                 68
251 #define KEY_NUMLOCK             69
252 #define KEY_SCROLLLOCK          70
253 #define KEY_KP7                 71
254 #define KEY_KP8                 72
255 #define KEY_KP9                 73
256 #define KEY_KPMINUS             74
257 #define KEY_KP4                 75
258 #define KEY_KP5                 76
259 #define KEY_KP6                 77
260 #define KEY_KPPLUS              78
261 #define KEY_KP1                 79
262 #define KEY_KP2                 80
263 #define KEY_KP3                 81
264 #define KEY_KP0                 82
265 #define KEY_KPDOT               83
266 
267 #define KEY_ZENKAKUHANKAKU      85
268 #define KEY_102ND               86
269 #define KEY_F11                 87
270 #define KEY_F12                 88
271 #define KEY_RO                  89
272 #define KEY_KATAKANA            90
273 #define KEY_HIRAGANA            91
274 #define KEY_HENKAN              92
275 #define KEY_KATAKANAHIRAGANA    93
276 #define KEY_MUHENKAN            94
277 #define KEY_KPJPCOMMA           95
278 #define KEY_KPENTER             96
279 #define KEY_RIGHTCTRL           97
280 #define KEY_KPSLASH             98
281 #define KEY_SYSRQ               99
282 #define KEY_RIGHTALT            100
283 #define KEY_LINEFEED            101
284 #define KEY_HOME                102
285 #define KEY_UP                  103
286 #define KEY_PAGEUP              104
287 #define KEY_LEFT                105
288 #define KEY_RIGHT               106
289 #define KEY_END                 107
290 #define KEY_DOWN                108
291 #define KEY_PAGEDOWN            109
292 #define KEY_INSERT              110
293 #define KEY_DELETE              111
294 #define KEY_MACRO               112
295 #define KEY_MUTE                113
296 #define KEY_VOLUMEDOWN          114
297 #define KEY_VOLUMEUP            115
298 #define KEY_POWER               116     /* SC System Power Down */
299 #define KEY_KPEQUAL             117
300 #define KEY_KPPLUSMINUS         118
301 #define KEY_PAUSE               119
302 #define KEY_SCALE               120     /* AL Compiz Scale (Expose) */
303 
304 #define KEY_KPCOMMA             121
305 #define KEY_HANGEUL             122
306 #define KEY_HANGUEL             KEY_HANGEUL
307 #define KEY_HANJA               123
308 #define KEY_YEN                 124
309 #define KEY_LEFTMETA            125
310 #define KEY_RIGHTMETA           126
311 #define KEY_COMPOSE             127
312 
313 #define KEY_STOP                128     /* AC Stop */
314 #define KEY_AGAIN               129
315 #define KEY_PROPS               130     /* AC Properties */
316 #define KEY_UNDO                131     /* AC Undo */
317 #define KEY_FRONT               132
318 #define KEY_COPY                133     /* AC Copy */
319 #define KEY_OPEN                134     /* AC Open */
320 #define KEY_PASTE               135     /* AC Paste */
321 #define KEY_FIND                136     /* AC Search */
322 #define KEY_CUT                 137     /* AC Cut */
323 #define KEY_HELP                138     /* AL Integrated Help Center */
324 #define KEY_MENU                139     /* Menu (show menu) */
325 #define KEY_CALC                140     /* AL Calculator */
326 #define KEY_SETUP               141
327 #define KEY_SLEEP               142     /* SC System Sleep */
328 #define KEY_WAKEUP              143     /* System Wake Up */
329 #define KEY_FILE                144     /* AL Local Machine Browser */
330 #define KEY_SENDFILE            145
331 #define KEY_DELETEFILE          146
332 #define KEY_XFER                147
333 #define KEY_PROG1               148
334 #define KEY_PROG2               149
335 #define KEY_WWW                 150     /* AL Internet Browser */
336 #define KEY_MSDOS               151
337 #define KEY_COFFEE              152     /* AL Terminal Lock/Screensaver */
338 #define KEY_SCREENLOCK          KEY_COFFEE
339 #define KEY_DIRECTION           153
340 #define KEY_CYCLEWINDOWS        154
341 #define KEY_MAIL                155
342 #define KEY_BOOKMARKS           156     /* AC Bookmarks */
343 #define KEY_COMPUTER            157
344 #define KEY_BACK                158     /* AC Back */
345 #define KEY_FORWARD             159     /* AC Forward */
346 #define KEY_CLOSECD             160
347 #define KEY_EJECTCD             161
348 #define KEY_EJECTCLOSECD        162
349 #define KEY_NEXTSONG            163
350 #define KEY_PLAYPAUSE           164
351 #define KEY_PREVIOUSSONG        165
352 #define KEY_STOPCD              166
353 #define KEY_RECORD              167
354 #define KEY_REWIND              168
355 #define KEY_PHONE               169     /* Media Select Telephone */
356 #define KEY_ISO                 170
357 #define KEY_CONFIG              171     /* AL Consumer Control Configuration */
358 #define KEY_HOMEPAGE            172     /* AC Home */
359 #define KEY_REFRESH             173     /* AC Refresh */
360 #define KEY_EXIT                174     /* AC Exit */
361 #define KEY_MOVE                175
362 #define KEY_EDIT                176
363 #define KEY_SCROLLUP            177
364 #define KEY_SCROLLDOWN          178
365 #define KEY_KPLEFTPAREN         179
366 #define KEY_KPRIGHTPAREN        180
367 #define KEY_NEW                 181     /* AC New */
368 #define KEY_REDO                182     /* AC Redo/Repeat */
369 
370 #define KEY_F13                 183
371 #define KEY_F14                 184
372 #define KEY_F15                 185
373 #define KEY_F16                 186
374 #define KEY_F17                 187
375 #define KEY_F18                 188
376 #define KEY_F19                 189
377 #define KEY_F20                 190
378 #define KEY_F21                 191
379 #define KEY_F22                 192
380 #define KEY_F23                 193
381 #define KEY_F24                 194
382 
383 #define KEY_PLAYCD              200
384 #define KEY_PAUSECD             201
385 #define KEY_PROG3               202
386 #define KEY_PROG4               203
387 #define KEY_DASHBOARD           204     /* AL Dashboard */
388 #define KEY_SUSPEND             205
389 #define KEY_CLOSE               206     /* AC Close */
390 #define KEY_PLAY                207
391 #define KEY_FASTFORWARD         208
392 #define KEY_BASSBOOST           209
393 #define KEY_PRINT               210     /* AC Print */
394 #define KEY_HP                  211
395 #define KEY_CAMERA              212
396 #define KEY_SOUND               213
397 #define KEY_QUESTION            214
398 #define KEY_EMAIL               215
399 #define KEY_CHAT                216
400 #define KEY_SEARCH              217
401 #define KEY_CONNECT             218
402 #define KEY_FINANCE             219     /* AL Checkbook/Finance */
403 #define KEY_SPORT               220
404 #define KEY_SHOP                221
405 #define KEY_ALTERASE            222
406 #define KEY_CANCEL              223     /* AC Cancel */
407 #define KEY_BRIGHTNESSDOWN      224
408 #define KEY_BRIGHTNESSUP        225
409 #define KEY_MEDIA               226
410 
411 #define KEY_SWITCHVIDEOMODE     227     /* Cycle between available video
412                                            outputs (Monitor/LCD/TV-out/etc) */
413 #define KEY_KBDILLUMTOGGLE      228
414 #define KEY_KBDILLUMDOWN        229
415 #define KEY_KBDILLUMUP          230
416 
417 #define KEY_SEND                231     /* AC Send */
418 #define KEY_REPLY               232     /* AC Reply */
419 #define KEY_FORWARDMAIL         233     /* AC Forward Msg */
420 #define KEY_SAVE                234     /* AC Save */
421 #define KEY_DOCUMENTS           235
422 
423 #define KEY_BATTERY             236
424 
425 #define KEY_BLUETOOTH           237
426 #define KEY_WLAN                238
427 #define KEY_UWB                 239
428 
429 #define KEY_UNKNOWN             240
430 
431 #define KEY_VIDEO_NEXT          241     /* drive next video source */
432 #define KEY_VIDEO_PREV          242     /* drive previous video source */
433 #define KEY_BRIGHTNESS_CYCLE    243     /* brightness up, after max is min */
434 #define KEY_BRIGHTNESS_ZERO     244     /* brightness off, use ambient */
435 #define KEY_DISPLAY_OFF         245     /* display device to off state */
436 
437 #define KEY_WIMAX               246
438 #define KEY_RFKILL              247     /* Key that controls all radios */
439 
440 /* Code 255 is reserved for special needs of AT keyboard driver */
441 
442 #define BTN_MISC                0x100
443 #define BTN_0                   0x100
444 #define BTN_1                   0x101
445 #define BTN_2                   0x102
446 #define BTN_3                   0x103
447 #define BTN_4                   0x104
448 #define BTN_5                   0x105
449 #define BTN_6                   0x106
450 #define BTN_7                   0x107
451 #define BTN_8                   0x108
452 #define BTN_9                   0x109
453 
454 #define BTN_MOUSE               0x110
455 #define BTN_LEFT                0x110
456 #define BTN_RIGHT               0x111
457 #define BTN_MIDDLE              0x112
458 #define BTN_SIDE                0x113
459 #define BTN_EXTRA               0x114
460 #define BTN_FORWARD             0x115
461 #define BTN_BACK                0x116
462 #define BTN_TASK                0x117
463 
464 #define BTN_JOYSTICK            0x120
465 #define BTN_TRIGGER             0x120
466 #define BTN_THUMB               0x121
467 #define BTN_THUMB2              0x122
468 #define BTN_TOP                 0x123
469 #define BTN_TOP2                0x124
470 #define BTN_PINKIE              0x125
471 #define BTN_BASE                0x126
472 #define BTN_BASE2               0x127
473 #define BTN_BASE3               0x128
474 #define BTN_BASE4               0x129
475 #define BTN_BASE5               0x12a
476 #define BTN_BASE6               0x12b
477 #define BTN_DEAD                0x12f
478 
479 #define BTN_GAMEPAD             0x130
480 #define BTN_A                   0x130
481 #define BTN_B                   0x131
482 #define BTN_C                   0x132
483 #define BTN_X                   0x133
484 #define BTN_Y                   0x134
485 #define BTN_Z                   0x135
486 #define BTN_TL                  0x136
487 #define BTN_TR                  0x137
488 #define BTN_TL2                 0x138
489 #define BTN_TR2                 0x139
490 #define BTN_SELECT              0x13a
491 #define BTN_START               0x13b
492 #define BTN_MODE                0x13c
493 #define BTN_THUMBL              0x13d
494 #define BTN_THUMBR              0x13e
495 
496 #define BTN_DIGI                0x140
497 #define BTN_TOOL_PEN            0x140
498 #define BTN_TOOL_RUBBER         0x141
499 #define BTN_TOOL_BRUSH          0x142
500 #define BTN_TOOL_PENCIL         0x143
501 #define BTN_TOOL_AIRBRUSH       0x144
502 #define BTN_TOOL_FINGER         0x145
503 #define BTN_TOOL_MOUSE          0x146
504 #define BTN_TOOL_LENS           0x147
505 #define BTN_TOUCH               0x14a
506 #define BTN_STYLUS              0x14b
507 #define BTN_STYLUS2             0x14c
508 #define BTN_TOOL_DOUBLETAP      0x14d
509 #define BTN_TOOL_TRIPLETAP      0x14e
510 #define BTN_TOOL_QUADTAP        0x14f   /* Four fingers on trackpad */
511 
512 #define BTN_WHEEL               0x150
513 #define BTN_GEAR_DOWN           0x150
514 #define BTN_GEAR_UP             0x151
515 
516 #define KEY_OK                  0x160
517 #define KEY_SELECT              0x161
518 #define KEY_GOTO                0x162
519 #define KEY_CLEAR               0x163
520 #define KEY_POWER2              0x164
521 #define KEY_OPTION              0x165
522 #define KEY_INFO                0x166   /* AL OEM Features/Tips/Tutorial */
523 #define KEY_TIME                0x167
524 #define KEY_VENDOR              0x168
525 #define KEY_ARCHIVE             0x169
526 #define KEY_PROGRAM             0x16a   /* Media Select Program Guide */
527 #define KEY_CHANNEL             0x16b
528 #define KEY_FAVORITES           0x16c
529 #define KEY_EPG                 0x16d
530 #define KEY_PVR                 0x16e   /* Media Select Home */
531 #define KEY_MHP                 0x16f
532 #define KEY_LANGUAGE            0x170
533 #define KEY_TITLE               0x171
534 #define KEY_SUBTITLE            0x172
535 #define KEY_ANGLE               0x173
536 #define KEY_ZOOM                0x174
537 #define KEY_MODE                0x175
538 #define KEY_KEYBOARD            0x176
539 #define KEY_SCREEN              0x177
540 #define KEY_PC                  0x178   /* Media Select Computer */
541 #define KEY_TV                  0x179   /* Media Select TV */
542 #define KEY_TV2                 0x17a   /* Media Select Cable */
543 #define KEY_VCR                 0x17b   /* Media Select VCR */
544 #define KEY_VCR2                0x17c   /* VCR Plus */
545 #define KEY_SAT                 0x17d   /* Media Select Satellite */
546 #define KEY_SAT2                0x17e
547 #define KEY_CD                  0x17f   /* Media Select CD */
548 #define KEY_TAPE                0x180   /* Media Select Tape */
549 #define KEY_RADIO               0x181
550 #define KEY_TUNER               0x182   /* Media Select Tuner */
551 #define KEY_PLAYER              0x183
552 #define KEY_TEXT                0x184
553 #define KEY_DVD                 0x185   /* Media Select DVD */
554 #define KEY_AUX                 0x186
555 #define KEY_MP3                 0x187
556 #define KEY_AUDIO               0x188
557 #define KEY_VIDEO               0x189
558 #define KEY_DIRECTORY           0x18a
559 #define KEY_LIST                0x18b
560 #define KEY_MEMO                0x18c   /* Media Select Messages */
561 #define KEY_CALENDAR            0x18d
562 #define KEY_RED                 0x18e
563 #define KEY_GREEN               0x18f
564 #define KEY_YELLOW              0x190
565 #define KEY_BLUE                0x191
566 #define KEY_CHANNELUP           0x192   /* Channel Increment */
567 #define KEY_CHANNELDOWN         0x193   /* Channel Decrement */
568 #define KEY_FIRST               0x194
569 #define KEY_LAST                0x195   /* Recall Last */
570 #define KEY_AB                  0x196
571 #define KEY_NEXT                0x197
572 #define KEY_RESTART             0x198
573 #define KEY_SLOW                0x199
574 #define KEY_SHUFFLE             0x19a
575 #define KEY_BREAK               0x19b
576 #define KEY_PREVIOUS            0x19c
577 #define KEY_DIGITS              0x19d
578 #define KEY_TEEN                0x19e
579 #define KEY_TWEN                0x19f
580 #define KEY_VIDEOPHONE          0x1a0   /* Media Select Video Phone */
581 #define KEY_GAMES               0x1a1   /* Media Select Games */
582 #define KEY_ZOOMIN              0x1a2   /* AC Zoom In */
583 #define KEY_ZOOMOUT             0x1a3   /* AC Zoom Out */
584 #define KEY_ZOOMRESET           0x1a4   /* AC Zoom */
585 #define KEY_WORDPROCESSOR       0x1a5   /* AL Word Processor */
586 #define KEY_EDITOR              0x1a6   /* AL Text Editor */
587 #define KEY_SPREADSHEET         0x1a7   /* AL Spreadsheet */
588 #define KEY_GRAPHICSEDITOR      0x1a8   /* AL Graphics Editor */
589 #define KEY_PRESENTATION        0x1a9   /* AL Presentation App */
590 #define KEY_DATABASE            0x1aa   /* AL Database App */
591 #define KEY_NEWS                0x1ab   /* AL Newsreader */
592 #define KEY_VOICEMAIL           0x1ac   /* AL Voicemail */
593 #define KEY_ADDRESSBOOK         0x1ad   /* AL Contacts/Address Book */
594 #define KEY_MESSENGER           0x1ae   /* AL Instant Messaging */
595 #define KEY_DISPLAYTOGGLE       0x1af   /* Turn display (LCD) on and off */
596 #define KEY_SPELLCHECK          0x1b0   /* AL Spell Check */
597 #define KEY_LOGOFF              0x1b1   /* AL Logoff */
598 
599 #define KEY_DOLLAR              0x1b2
600 #define KEY_EURO                0x1b3
601 
602 #define KEY_FRAMEBACK           0x1b4   /* Consumer - transport controls */
603 #define KEY_FRAMEFORWARD        0x1b5
604 #define KEY_CONTEXT_MENU        0x1b6   /* GenDesc - system context menu */
605 #define KEY_MEDIA_REPEAT        0x1b7   /* Consumer - transport control */
606 #define KEY_10CHANNELSUP        0x1b8   /* 10 channels up (10+) */
607 #define KEY_10CHANNELSDOWN      0x1b9   /* 10 channels down (10-) */
608 
609 #define KEY_DEL_EOL             0x1c0
610 #define KEY_DEL_EOS             0x1c1
611 #define KEY_INS_LINE            0x1c2
612 #define KEY_DEL_LINE            0x1c3
613 
614 #define KEY_FN                  0x1d0
615 #define KEY_FN_ESC              0x1d1
616 #define KEY_FN_F1               0x1d2
617 #define KEY_FN_F2               0x1d3
618 #define KEY_FN_F3               0x1d4
619 #define KEY_FN_F4               0x1d5
620 #define KEY_FN_F5               0x1d6
621 #define KEY_FN_F6               0x1d7
622 #define KEY_FN_F7               0x1d8
623 #define KEY_FN_F8               0x1d9
624 #define KEY_FN_F9               0x1da
625 #define KEY_FN_F10              0x1db
626 #define KEY_FN_F11              0x1dc
627 #define KEY_FN_F12              0x1dd
628 #define KEY_FN_1                0x1de
629 #define KEY_FN_2                0x1df
630 #define KEY_FN_D                0x1e0
631 #define KEY_FN_E                0x1e1
632 #define KEY_FN_F                0x1e2
633 #define KEY_FN_S                0x1e3
634 #define KEY_FN_B                0x1e4
635 
636 #define KEY_BRL_DOT1            0x1f1
637 #define KEY_BRL_DOT2            0x1f2
638 #define KEY_BRL_DOT3            0x1f3
639 #define KEY_BRL_DOT4            0x1f4
640 #define KEY_BRL_DOT5            0x1f5
641 #define KEY_BRL_DOT6            0x1f6
642 #define KEY_BRL_DOT7            0x1f7
643 #define KEY_BRL_DOT8            0x1f8
644 #define KEY_BRL_DOT9            0x1f9
645 #define KEY_BRL_DOT10           0x1fa
646 
647 #define KEY_NUMERIC_0           0x200   /* used by phones, remote controls, */
648 #define KEY_NUMERIC_1           0x201   /* and other keypads */
649 #define KEY_NUMERIC_2           0x202
650 #define KEY_NUMERIC_3           0x203
651 #define KEY_NUMERIC_4           0x204
652 #define KEY_NUMERIC_5           0x205
653 #define KEY_NUMERIC_6           0x206
654 #define KEY_NUMERIC_7           0x207
655 #define KEY_NUMERIC_8           0x208
656 #define KEY_NUMERIC_9           0x209
657 #define KEY_NUMERIC_STAR        0x20a
658 #define KEY_NUMERIC_POUND       0x20b
659 
660 #define KEY_CAMERA_FOCUS        0x210
661 #define KEY_WPS_BUTTON          0x211   /* WiFi Protected Setup key */
662 
663 #define KEY_TOUCHPAD_TOGGLE     0x212   /* Request switch touchpad on or off */
664 #define KEY_TOUCHPAD_ON         0x213
665 #define KEY_TOUCHPAD_OFF        0x214
666 
667 #define BTN_TRIGGER_HAPPY               0x2c0
668 #define BTN_TRIGGER_HAPPY1              0x2c0
669 #define BTN_TRIGGER_HAPPY2              0x2c1
670 #define BTN_TRIGGER_HAPPY3              0x2c2
671 #define BTN_TRIGGER_HAPPY4              0x2c3
672 #define BTN_TRIGGER_HAPPY5              0x2c4
673 #define BTN_TRIGGER_HAPPY6              0x2c5
674 #define BTN_TRIGGER_HAPPY7              0x2c6
675 #define BTN_TRIGGER_HAPPY8              0x2c7
676 #define BTN_TRIGGER_HAPPY9              0x2c8
677 #define BTN_TRIGGER_HAPPY10             0x2c9
678 #define BTN_TRIGGER_HAPPY11             0x2ca
679 #define BTN_TRIGGER_HAPPY12             0x2cb
680 #define BTN_TRIGGER_HAPPY13             0x2cc
681 #define BTN_TRIGGER_HAPPY14             0x2cd
682 #define BTN_TRIGGER_HAPPY15             0x2ce
683 #define BTN_TRIGGER_HAPPY16             0x2cf
684 #define BTN_TRIGGER_HAPPY17             0x2d0
685 #define BTN_TRIGGER_HAPPY18             0x2d1
686 #define BTN_TRIGGER_HAPPY19             0x2d2
687 #define BTN_TRIGGER_HAPPY20             0x2d3
688 #define BTN_TRIGGER_HAPPY21             0x2d4
689 #define BTN_TRIGGER_HAPPY22             0x2d5
690 #define BTN_TRIGGER_HAPPY23             0x2d6
691 #define BTN_TRIGGER_HAPPY24             0x2d7
692 #define BTN_TRIGGER_HAPPY25             0x2d8
693 #define BTN_TRIGGER_HAPPY26             0x2d9
694 #define BTN_TRIGGER_HAPPY27             0x2da
695 #define BTN_TRIGGER_HAPPY28             0x2db
696 #define BTN_TRIGGER_HAPPY29             0x2dc
697 #define BTN_TRIGGER_HAPPY30             0x2dd
698 #define BTN_TRIGGER_HAPPY31             0x2de
699 #define BTN_TRIGGER_HAPPY32             0x2df
700 #define BTN_TRIGGER_HAPPY33             0x2e0
701 #define BTN_TRIGGER_HAPPY34             0x2e1
702 #define BTN_TRIGGER_HAPPY35             0x2e2
703 #define BTN_TRIGGER_HAPPY36             0x2e3
704 #define BTN_TRIGGER_HAPPY37             0x2e4
705 #define BTN_TRIGGER_HAPPY38             0x2e5
706 #define BTN_TRIGGER_HAPPY39             0x2e6
707 #define BTN_TRIGGER_HAPPY40             0x2e7
708 
709 /* We avoid low common keys in module aliases so they don't get huge. */
710 #define KEY_MIN_INTERESTING     KEY_MUTE
711 #define KEY_MAX                 0x2ff
712 #define KEY_CNT                 (KEY_MAX+1)
713 
714 /*
715  * Relative axes
716  */
717 
718 #define REL_X                   0x00
719 #define REL_Y                   0x01
720 #define REL_Z                   0x02
721 #define REL_RX                  0x03
722 #define REL_RY                  0x04
723 #define REL_RZ                  0x05
724 #define REL_HWHEEL              0x06
725 #define REL_DIAL                0x07
726 #define REL_WHEEL               0x08
727 #define REL_MISC                0x09
728 #define REL_MAX                 0x0f
729 #define REL_CNT                 (REL_MAX+1)
730 
731 /*
732  * Absolute axes
733  */
734 
735 #define ABS_X                   0x00
736 #define ABS_Y                   0x01
737 #define ABS_Z                   0x02
738 #define ABS_RX                  0x03
739 #define ABS_RY                  0x04
740 #define ABS_RZ                  0x05
741 #define ABS_THROTTLE            0x06
742 #define ABS_RUDDER              0x07
743 #define ABS_WHEEL               0x08
744 #define ABS_GAS                 0x09
745 #define ABS_BRAKE               0x0a
746 #define ABS_HAT0X               0x10
747 #define ABS_HAT0Y               0x11
748 #define ABS_HAT1X               0x12
749 #define ABS_HAT1Y               0x13
750 #define ABS_HAT2X               0x14
751 #define ABS_HAT2Y               0x15
752 #define ABS_HAT3X               0x16
753 #define ABS_HAT3Y               0x17
754 #define ABS_PRESSURE            0x18
755 #define ABS_DISTANCE            0x19
756 #define ABS_TILT_X              0x1a
757 #define ABS_TILT_Y              0x1b
758 #define ABS_TOOL_WIDTH          0x1c
759 
760 #define ABS_VOLUME              0x20
761 
762 #define ABS_MISC                0x28
763 
764 #define ABS_MT_SLOT             0x2f    /* MT slot being modified */
765 #define ABS_MT_TOUCH_MAJOR      0x30    /* Major axis of touching ellipse */
766 #define ABS_MT_TOUCH_MINOR      0x31    /* Minor axis (omit if circular) */
767 #define ABS_MT_WIDTH_MAJOR      0x32    /* Major axis of approaching ellipse */
768 #define ABS_MT_WIDTH_MINOR      0x33    /* Minor axis (omit if circular) */
769 #define ABS_MT_ORIENTATION      0x34    /* Ellipse orientation */
770 #define ABS_MT_POSITION_X       0x35    /* Center X ellipse position */
771 #define ABS_MT_POSITION_Y       0x36    /* Center Y ellipse position */
772 #define ABS_MT_TOOL_TYPE        0x37    /* Type of touching device */
773 #define ABS_MT_BLOB_ID          0x38    /* Group a set of packets as a blob */
774 #define ABS_MT_TRACKING_ID      0x39    /* Unique ID of initiated contact */
775 #define ABS_MT_PRESSURE         0x3a    /* Pressure on contact area */
776 #define ABS_MT_DISTANCE         0x3b    /* Contact hover distance */
777 
778 #ifdef __KERNEL__
779 /* Implementation details, userspace should not care about these */
780 #define ABS_MT_FIRST            ABS_MT_TOUCH_MAJOR
781 #define ABS_MT_LAST             ABS_MT_DISTANCE
782 #endif
783 
784 #define ABS_MAX                 0x3f
785 #define ABS_CNT                 (ABS_MAX+1)
786 
787 /*
788  * Switch events
789  */
790 
791 #define SW_LID                  0x00  /* set = lid shut */
792 #define SW_TABLET_MODE          0x01  /* set = tablet mode */
793 #define SW_HEADPHONE_INSERT     0x02  /* set = inserted */
794 #define SW_RFKILL_ALL           0x03  /* rfkill master switch, type "any"
795                                          set = radio enabled */
796 #define SW_RADIO                SW_RFKILL_ALL   /* deprecated */
797 #define SW_MICROPHONE_INSERT    0x04  /* set = inserted */
798 #define SW_DOCK                 0x05  /* set = plugged into dock */
799 #define SW_LINEOUT_INSERT       0x06  /* set = inserted */
800 #define SW_JACK_PHYSICAL_INSERT 0x07  /* set = mechanical switch set */
801 #define SW_VIDEOOUT_INSERT      0x08  /* set = inserted */
802 #define SW_CAMERA_LENS_COVER    0x09  /* set = lens covered */
803 #define SW_KEYPAD_SLIDE         0x0a  /* set = keypad slide out */
804 #define SW_FRONT_PROXIMITY      0x0b  /* set = front proximity sensor active */
805 #define SW_ROTATE_LOCK          0x0c  /* set = rotate locked/disabled */
806 #define SW_MAX                  0x0f
807 #define SW_CNT                  (SW_MAX+1)
808 
809 /*
810  * Misc events
811  */
812 
813 #define MSC_SERIAL              0x00
814 #define MSC_PULSELED            0x01
815 #define MSC_GESTURE             0x02
816 #define MSC_RAW                 0x03
817 #define MSC_SCAN                0x04
818 #define MSC_MAX                 0x07
819 #define MSC_CNT                 (MSC_MAX+1)
820 
821 /*
822  * LEDs
823  */
824 
825 #define LED_NUML                0x00
826 #define LED_CAPSL               0x01
827 #define LED_SCROLLL             0x02
828 #define LED_COMPOSE             0x03
829 #define LED_KANA                0x04
830 #define LED_SLEEP               0x05
831 #define LED_SUSPEND             0x06
832 #define LED_MUTE                0x07
833 #define LED_MISC                0x08
834 #define LED_MAIL                0x09
835 #define LED_CHARGING            0x0a
836 #define LED_MAX                 0x0f
837 #define LED_CNT                 (LED_MAX+1)
838 
839 /*
840  * Autorepeat values
841  */
842 
843 #define REP_DELAY               0x00
844 #define REP_PERIOD              0x01
845 #define REP_MAX                 0x01
846 #define REP_CNT                 (REP_MAX+1)
847 
848 /*
849  * Sounds
850  */
851 
852 #define SND_CLICK               0x00
853 #define SND_BELL                0x01
854 #define SND_TONE                0x02
855 #define SND_MAX                 0x07
856 #define SND_CNT                 (SND_MAX+1)
857 
858 /*
859  * IDs.
860  */
861 
862 #define ID_BUS                  0
863 #define ID_VENDOR               1
864 #define ID_PRODUCT              2
865 #define ID_VERSION              3
866 
867 #define BUS_PCI                 0x01
868 #define BUS_ISAPNP              0x02
869 #define BUS_USB                 0x03
870 #define BUS_HIL                 0x04
871 #define BUS_BLUETOOTH           0x05
872 #define BUS_VIRTUAL             0x06
873 
874 #define BUS_ISA                 0x10
875 #define BUS_I8042               0x11
876 #define BUS_XTKBD               0x12
877 #define BUS_RS232               0x13
878 #define BUS_GAMEPORT            0x14
879 #define BUS_PARPORT             0x15
880 #define BUS_AMIGA               0x16
881 #define BUS_ADB                 0x17
882 #define BUS_I2C                 0x18
883 #define BUS_HOST                0x19
884 #define BUS_GSC                 0x1A
885 #define BUS_ATARI               0x1B
886 #define BUS_SPI                 0x1C
887 
888 /*
889  * MT_TOOL types
890  */
891 #define MT_TOOL_FINGER          0
892 #define MT_TOOL_PEN             1
893 #define MT_TOOL_MAX             1
894 
895 /*
896  * Values describing the status of a force-feedback effect
897  */
898 #define FF_STATUS_STOPPED       0x00
899 #define FF_STATUS_PLAYING       0x01
900 #define FF_STATUS_MAX           0x01
901 
902 /*
903  * Structures used in ioctls to upload effects to a device
904  * They are pieces of a bigger structure (called ff_effect)
905  */
906 
907 /*
908  * All duration values are expressed in ms. Values above 32767 ms (0x7fff)
909  * should not be used and have unspecified results.
910  */
911 
912 /**
913  * struct ff_replay - defines scheduling of the force-feedback effect
914  * @length: duration of the effect
915  * @delay: delay before effect should start playing
916  */
917 struct ff_replay {
918         __u16 length;
919         __u16 delay;
920 };
921 
922 /**
923  * struct ff_trigger - defines what triggers the force-feedback effect
924  * @button: number of the button triggering the effect
925  * @interval: controls how soon the effect can be re-triggered
926  */
927 struct ff_trigger {
928         __u16 button;
929         __u16 interval;
930 };
931 
932 /**
933  * struct ff_envelope - generic force-feedback effect envelope
934  * @attack_length: duration of the attack (ms)
935  * @attack_level: level at the beginning of the attack
936  * @fade_length: duration of fade (ms)
937  * @fade_level: level at the end of fade
938  *
939  * The @attack_level and @fade_level are absolute values; when applying
940  * envelope force-feedback core will convert to positive/negative
941  * value based on polarity of the default level of the effect.
942  * Valid range for the attack and fade levels is 0x0000 - 0x7fff
943  */
944 struct ff_envelope {
945         __u16 attack_length;
946         __u16 attack_level;
947         __u16 fade_length;
948         __u16 fade_level;
949 };
950 
951 /**
952  * struct ff_constant_effect - defines parameters of a constant force-feedback effect
953  * @level: strength of the effect; may be negative
954  * @envelope: envelope data
955  */
956 struct ff_constant_effect {
957         __s16 level;
958         struct ff_envelope envelope;
959 };
960 
961 /**
962  * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect
963  * @start_level: beginning strength of the effect; may be negative
964  * @end_level: final strength of the effect; may be negative
965  * @envelope: envelope data
966  */
967 struct ff_ramp_effect {
968         __s16 start_level;
969         __s16 end_level;
970         struct ff_envelope envelope;
971 };
972 
973 /**
974  * struct ff_condition_effect - defines a spring or friction force-feedback effect
975  * @right_saturation: maximum level when joystick moved all way to the right
976  * @left_saturation: same for the left side
977  * @right_coeff: controls how fast the force grows when the joystick moves
978  *      to the right
979  * @left_coeff: same for the left side
980  * @deadband: size of the dead zone, where no force is produced
981  * @center: position of the dead zone
982  */
983 struct ff_condition_effect {
984         __u16 right_saturation;
985         __u16 left_saturation;
986 
987         __s16 right_coeff;
988         __s16 left_coeff;
989 
990         __u16 deadband;
991         __s16 center;
992 };
993 
994 /**
995  * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect
996  * @waveform: kind of the effect (wave)
997  * @period: period of the wave (ms)
998  * @magnitude: peak value
999  * @offset: mean value of the wave (roughly)
1000  * @phase: 'horizontal' shift
1001  * @envelope: envelope data
1002  * @custom_len: number of samples (FF_CUSTOM only)
1003  * @custom_data: buffer of samples (FF_CUSTOM only)
1004  *
1005  * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,
1006  * FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined
1007  * for the time being as no driver supports it yet.
1008  *
1009  * Note: the data pointed by custom_data is copied by the driver.
1010  * You can therefore dispose of the memory after the upload/update.
1011  */
1012 struct ff_periodic_effect {
1013         __u16 waveform;
1014         __u16 period;
1015         __s16 magnitude;
1016         __s16 offset;
1017         __u16 phase;
1018 
1019         struct ff_envelope envelope;
1020 
1021         __u32 custom_len;
1022         __s16 __user *custom_data;
1023 };
1024 
1025 /**
1026  * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect
1027  * @strong_magnitude: magnitude of the heavy motor
1028  * @weak_magnitude: magnitude of the light one
1029  *
1030  * Some rumble pads have two motors of different weight. Strong_magnitude
1031  * represents the magnitude of the vibration generated by the heavy one.
1032  */
1033 struct ff_rumble_effect {
1034         __u16 strong_magnitude;
1035         __u16 weak_magnitude;
1036 };
1037 
1038 /**
1039  * struct ff_effect - defines force feedback effect
1040  * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,
1041  *      FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM)
1042  * @id: an unique id assigned to an effect
1043  * @direction: direction of the effect
1044  * @trigger: trigger conditions (struct ff_trigger)
1045  * @replay: scheduling of the effect (struct ff_replay)
1046  * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,
1047  *      ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further
1048  *      defining effect parameters
1049  *
1050  * This structure is sent through ioctl from the application to the driver.
1051  * To create a new effect application should set its @id to -1; the kernel
1052  * will return assigned @id which can later be used to update or delete
1053  * this effect.
1054  *
1055  * Direction of the effect is encoded as follows:
1056  *      0 deg -> 0x0000 (down)
1057  *      90 deg -> 0x4000 (left)
1058  *      180 deg -> 0x8000 (up)
1059  *      270 deg -> 0xC000 (right)
1060  */
1061 struct ff_effect {
1062         __u16 type;
1063         __s16 id;
1064         __u16 direction;
1065         struct ff_trigger trigger;
1066         struct ff_replay replay;
1067 
1068         union {
1069                 struct ff_constant_effect constant;
1070                 struct ff_ramp_effect ramp;
1071                 struct ff_periodic_effect periodic;
1072                 struct ff_condition_effect condition[2]; /* One for each axis */
1073                 struct ff_rumble_effect rumble;
1074         } u;
1075 };
1076 
1077 /*
1078  * Force feedback effect types
1079  */
1080 
1081 #define FF_RUMBLE       0x50
1082 #define FF_PERIODIC     0x51
1083 #define FF_CONSTANT     0x52
1084 #define FF_SPRING       0x53
1085 #define FF_FRICTION     0x54
1086 #define FF_DAMPER       0x55
1087 #define FF_INERTIA      0x56
1088 #define FF_RAMP         0x57
1089 
1090 #define FF_EFFECT_MIN   FF_RUMBLE
1091 #define FF_EFFECT_MAX   FF_RAMP
1092 
1093 /*
1094  * Force feedback periodic effect types
1095  */
1096 
1097 #define FF_SQUARE       0x58
1098 #define FF_TRIANGLE     0x59
1099 #define FF_SINE         0x5a
1100 #define FF_SAW_UP       0x5b
1101 #define FF_SAW_DOWN     0x5c
1102 #define FF_CUSTOM       0x5d
1103 
1104 #define FF_WAVEFORM_MIN FF_SQUARE
1105 #define FF_WAVEFORM_MAX FF_CUSTOM
1106 
1107 /*
1108  * Set ff device properties
1109  */
1110 
1111 #define FF_GAIN         0x60
1112 #define FF_AUTOCENTER   0x61
1113 
1114 #define FF_MAX          0x7f
1115 #define FF_CNT          (FF_MAX+1)
1116 
1117 #ifdef __KERNEL__
1118 
1119 /*
1120  * In-kernel definitions.
1121  */
1122 
1123 #include <linux/device.h>
1124 #include <linux/fs.h>
1125 #include <linux/timer.h>
1126 #include <linux/mod_devicetable.h>
1127 
1128 /**
1129  * struct input_dev - represents an input device
1130  * @name: name of the device
1131  * @phys: physical path to the device in the system hierarchy
1132  * @uniq: unique identification code for the device (if device has it)
1133  * @id: id of the device (struct input_id)
1134  * @propbit: bitmap of device properties and quirks
1135  * @evbit: bitmap of types of events supported by the device (EV_KEY,
1136  *      EV_REL, etc.)
1137  * @keybit: bitmap of keys/buttons this device has
1138  * @relbit: bitmap of relative axes for the device
1139  * @absbit: bitmap of absolute axes for the device
1140  * @mscbit: bitmap of miscellaneous events supported by the device
1141  * @ledbit: bitmap of leds present on the device
1142  * @sndbit: bitmap of sound effects supported by the device
1143  * @ffbit: bitmap of force feedback effects supported by the device
1144  * @swbit: bitmap of switches present on the device
1145  * @hint_events_per_packet: average number of events generated by the
1146  *      device in a packet (between EV_SYN/SYN_REPORT events). Used by
1147  *      event handlers to estimate size of the buffer needed to hold
1148  *      events.
1149  * @keycodemax: size of keycode table
1150  * @keycodesize: size of elements in keycode table
1151  * @keycode: map of scancodes to keycodes for this device
1152  * @getkeycode: optional legacy method to retrieve current keymap.
1153  * @setkeycode: optional method to alter current keymap, used to implement
1154  *      sparse keymaps. If not supplied default mechanism will be used.
1155  *      The method is being called while holding event_lock and thus must
1156  *      not sleep
1157  * @getkeycode_new: transition method
1158  * @setkeycode_new: transition method
1159  * @ff: force feedback structure associated with the device if device
1160  *      supports force feedback effects
1161  * @repeat_key: stores key code of the last key pressed; used to implement
1162  *      software autorepeat
1163  * @timer: timer for software autorepeat
1164  * @rep: current values for autorepeat parameters (delay, rate)
1165  * @mt: pointer to array of struct input_mt_slot holding current values
1166  *      of tracked contacts
1167  * @mtsize: number of MT slots the device uses
1168  * @slot: MT slot currently being transmitted
1169  * @trkid: stores MT tracking ID for the current contact
1170  * @absinfo: array of &struct input_absinfo elements holding information
1171  *      about absolute axes (current value, min, max, flat, fuzz,
1172  *      resolution)
1173  * @key: reflects current state of device's keys/buttons
1174  * @led: reflects current state of device's LEDs
1175  * @snd: reflects current state of sound effects
1176  * @sw: reflects current state of device's switches
1177  * @open: this method is called when the very first user calls
1178  *      input_open_device(). The driver must prepare the device
1179  *      to start generating events (start polling thread,
1180  *      request an IRQ, submit URB, etc.)
1181  * @close: this method is called when the very last user calls
1182  *      input_close_device().
1183  * @flush: purges the device. Most commonly used to get rid of force
1184  *      feedback effects loaded into the device when disconnecting
1185  *      from it
1186  * @event: event handler for events sent _to_ the device, like EV_LED
1187  *      or EV_SND. The device is expected to carry out the requested
1188  *      action (turn on a LED, play sound, etc.) The call is protected
1189  *      by @event_lock and must not sleep
1190  * @grab: input handle that currently has the device grabbed (via
1191  *      EVIOCGRAB ioctl). When a handle grabs a device it becomes sole
1192  *      recipient for all input events coming from the device
1193  * @event_lock: this spinlock is is taken when input core receives
1194  *      and processes a new event for the device (in input_event()).
1195  *      Code that accesses and/or modifies parameters of a device
1196  *      (such as keymap or absmin, absmax, absfuzz, etc.) after device
1197  *      has been registered with input core must take this lock.
1198  * @mutex: serializes calls to open(), close() and flush() methods
1199  * @users: stores number of users (input handlers) that opened this
1200  *      device. It is used by input_open_device() and input_close_device()
1201  *      to make sure that dev->open() is only called when the first
1202  *      user opens device and dev->close() is called when the very
1203  *      last user closes the device
1204  * @going_away: marks devices that are in a middle of unregistering and
1205  *      causes input_open_device*() fail with -ENODEV.
1206  * @sync: set to %true when there were no new events since last EV_SYN
1207  * @dev: driver model's view of this device
1208  * @h_list: list of input handles associated with the device. When
1209  *      accessing the list dev->mutex must be held
1210  * @node: used to place the device onto input_dev_list
1211  */
1212 struct input_dev {
1213         const char *name;
1214         const char *phys;
1215         const char *uniq;
1216         struct input_id id;
1217 
1218         unsigned long propbit[BITS_TO_LONGS(INPUT_PROP_CNT)];
1219 
1220         unsigned long evbit[BITS_TO_LONGS(EV_CNT)];
1221         unsigned long keybit[BITS_TO_LONGS(KEY_CNT)];
1222         unsigned long relbit[BITS_TO_LONGS(REL_CNT)];
1223         unsigned long absbit[BITS_TO_LONGS(ABS_CNT)];
1224         unsigned long mscbit[BITS_TO_LONGS(MSC_CNT)];
1225         unsigned long ledbit[BITS_TO_LONGS(LED_CNT)];
1226         unsigned long sndbit[BITS_TO_LONGS(SND_CNT)];
1227         unsigned long ffbit[BITS_TO_LONGS(FF_CNT)];
1228         unsigned long swbit[BITS_TO_LONGS(SW_CNT)];
1229 
1230         unsigned int hint_events_per_packet;
1231 
1232         unsigned int keycodemax;
1233         unsigned int keycodesize;
1234         void *keycode;
1235 
1236         int (*setkeycode)(struct input_dev *dev,
1237                           unsigned int scancode, unsigned int keycode);
1238         int (*getkeycode)(struct input_dev *dev,
1239                           unsigned int scancode, unsigned int *keycode);
1240         int (*setkeycode_new)(struct input_dev *dev,
1241                               const struct input_keymap_entry *ke,
1242                               unsigned int *old_keycode);
1243         int (*getkeycode_new)(struct input_dev *dev,
1244                               struct input_keymap_entry *ke);
1245 
1246         struct ff_device *ff;
1247 
1248         unsigned int repeat_key;
1249         struct timer_list timer;
1250 
1251         int rep[REP_CNT];
1252 
1253         struct input_mt_slot *mt;
1254         int mtsize;
1255         int slot;
1256         int trkid;
1257 
1258         struct input_absinfo *absinfo;
1259 
1260         unsigned long key[BITS_TO_LONGS(KEY_CNT)];
1261         unsigned long led[BITS_TO_LONGS(LED_CNT)];
1262         unsigned long snd[BITS_TO_LONGS(SND_CNT)];
1263         unsigned long sw[BITS_TO_LONGS(SW_CNT)];
1264 
1265         int (*open)(struct input_dev *dev);
1266         void (*close)(struct input_dev *dev);
1267         int (*flush)(struct input_dev *dev, struct file *file);
1268         int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
1269 
1270         struct input_handle __rcu *grab;
1271 
1272         spinlock_t event_lock;
1273         struct mutex mutex;
1274 
1275         unsigned int users;
1276         bool going_away;
1277 
1278         bool sync;
1279 
1280         struct device dev;
1281 
1282         struct list_head        h_list;
1283         struct list_head        node;
1284 };
1285 #define to_input_dev(d) container_of(d, struct input_dev, dev)
1286 
1287 /*
1288  * Verify that we are in sync with input_device_id mod_devicetable.h #defines
1289  */
1290 
1291 #if EV_MAX != INPUT_DEVICE_ID_EV_MAX
1292 #error "EV_MAX and INPUT_DEVICE_ID_EV_MAX do not match"
1293 #endif
1294 
1295 #if KEY_MIN_INTERESTING != INPUT_DEVICE_ID_KEY_MIN_INTERESTING
1296 #error "KEY_MIN_INTERESTING and INPUT_DEVICE_ID_KEY_MIN_INTERESTING do not match"
1297 #endif
1298 
1299 #if KEY_MAX != INPUT_DEVICE_ID_KEY_MAX
1300 #error "KEY_MAX and INPUT_DEVICE_ID_KEY_MAX do not match"
1301 #endif
1302 
1303 #if REL_MAX != INPUT_DEVICE_ID_REL_MAX
1304 #error "REL_MAX and INPUT_DEVICE_ID_REL_MAX do not match"
1305 #endif
1306 
1307 #if ABS_MAX != INPUT_DEVICE_ID_ABS_MAX
1308 #error "ABS_MAX and INPUT_DEVICE_ID_ABS_MAX do not match"
1309 #endif
1310 
1311 #if MSC_MAX != INPUT_DEVICE_ID_MSC_MAX
1312 #error "MSC_MAX and INPUT_DEVICE_ID_MSC_MAX do not match"
1313 #endif
1314 
1315 #if LED_MAX != INPUT_DEVICE_ID_LED_MAX
1316 #error "LED_MAX and INPUT_DEVICE_ID_LED_MAX do not match"
1317 #endif
1318 
1319 #if SND_MAX != INPUT_DEVICE_ID_SND_MAX
1320 #error "SND_MAX and INPUT_DEVICE_ID_SND_MAX do not match"
1321 #endif
1322 
1323 #if FF_MAX != INPUT_DEVICE_ID_FF_MAX
1324 #error "FF_MAX and INPUT_DEVICE_ID_FF_MAX do not match"
1325 #endif
1326 
1327 #if SW_MAX != INPUT_DEVICE_ID_SW_MAX
1328 #error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match"
1329 #endif
1330 
1331 #define INPUT_DEVICE_ID_MATCH_DEVICE \
1332         (INPUT_DEVICE_ID_MATCH_BUS | INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT)
1333 #define INPUT_DEVICE_ID_MATCH_DEVICE_AND_VERSION \
1334         (INPUT_DEVICE_ID_MATCH_DEVICE | INPUT_DEVICE_ID_MATCH_VERSION)
1335 
1336 struct input_handle;
1337 
1338 /**
1339  * struct input_handler - implements one of interfaces for input devices
1340  * @private: driver-specific data
1341  * @event: event handler. This method is being called by input core with
1342  *      interrupts disabled and dev->event_lock spinlock held and so
1343  *      it may not sleep
1344  * @filter: similar to @event; separates normal event handlers from
1345  *      "filters".
1346  * @match: called after comparing device's id with handler's id_table
1347  *      to perform fine-grained matching between device and handler
1348  * @connect: called when attaching a handler to an input device
1349  * @disconnect: disconnects a handler from input device
1350  * @start: starts handler for given handle. This function is called by
1351  *      input core right after connect() method and also when a process
1352  *      that "grabbed" a device releases it
1353  * @fops: file operations this driver implements
1354  * @minor: beginning of range of 32 minors for devices this driver
1355  *      can provide
1356  * @name: name of the handler, to be shown in /proc/bus/input/handlers
1357  * @id_table: pointer to a table of input_device_ids this driver can
1358  *      handle
1359  * @h_list: list of input handles associated with the handler
1360  * @node: for placing the driver onto input_handler_list
1361  *
1362  * Input handlers attach to input devices and create input handles. There
1363  * are likely several handlers attached to any given input device at the
1364  * same time. All of them will get their copy of input event generated by
1365  * the device.
1366  *
1367  * The very same structure is used to implement input filters. Input core
1368  * allows filters to run first and will not pass event to regular handlers
1369  * if any of the filters indicate that the event should be filtered (by
1370  * returning %true from their filter() method).
1371  *
1372  * Note that input core serializes calls to connect() and disconnect()
1373  * methods.
1374  */
1375 struct input_handler {
1376 
1377         void *private;
1378 
1379         void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
1380         bool (*filter)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
1381         bool (*match)(struct input_handler *handler, struct input_dev *dev);
1382         int (*connect)(struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);
1383         void (*disconnect)(struct input_handle *handle);
1384         void (*start)(struct input_handle *handle);
1385 
1386         const struct file_operations *fops;
1387         int minor;
1388         const char *name;
1389 
1390         const struct input_device_id *id_table;
1391 
1392         struct list_head        h_list;
1393         struct list_head        node;
1394 };
1395 
1396 /**
1397  * struct input_handle - links input device with an input handler
1398  * @private: handler-specific data
1399  * @open: counter showing whether the handle is 'open', i.e. should deliver
1400  *      events from its device
1401  * @name: name given to the handle by handler that created it
1402  * @dev: input device the handle is attached to
1403  * @handler: handler that works with the device through this handle
1404  * @d_node: used to put the handle on device's list of attached handles
1405  * @h_node: used to put the handle on handler's list of handles from which
1406  *      it gets events
1407  */
1408 struct input_handle {
1409 
1410         void *private;
1411 
1412         int open;
1413         const char *name;
1414 
1415         struct input_dev *dev;
1416         struct input_handler *handler;
1417 
1418         struct list_head        d_node;
1419         struct list_head        h_node;
1420 };
1421 
1422 struct input_dev *input_allocate_device(void);
1423 void input_free_device(struct input_dev *dev);
1424 
1425 static inline struct input_dev *input_get_device(struct input_dev *dev)
1426 {
1427         return dev ? to_input_dev(get_device(&dev->dev)) : NULL;
1428 }
1429 
1430 static inline void input_put_device(struct input_dev *dev)
1431 {
1432         if (dev)
1433                 put_device(&dev->dev);
1434 }
1435 
1436 static inline void *input_get_drvdata(struct input_dev *dev)
1437 {
1438         return dev_get_drvdata(&dev->dev);
1439 }
1440 
1441 static inline void input_set_drvdata(struct input_dev *dev, void *data)
1442 {
1443         dev_set_drvdata(&dev->dev, data);
1444 }
1445 
1446 int __must_check input_register_device(struct input_dev *);
1447 void input_unregister_device(struct input_dev *);
1448 
1449 void input_reset_device(struct input_dev *);
1450 
1451 int __must_check input_register_handler(struct input_handler *);
1452 void input_unregister_handler(struct input_handler *);
1453 
1454 int input_handler_for_each_handle(struct input_handler *, void *data,
1455                                   int (*fn)(struct input_handle *, void *));
1456 
1457 int input_register_handle(struct input_handle *);
1458 void input_unregister_handle(struct input_handle *);
1459 
1460 int input_grab_device(struct input_handle *);
1461 void input_release_device(struct input_handle *);
1462 
1463 int input_open_device(struct input_handle *);
1464 void input_close_device(struct input_handle *);
1465 
1466 int input_flush_device(struct input_handle *handle, struct file *file);
1467 
1468 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
1469 void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value);
1470 
1471 static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
1472 {
1473         input_event(dev, EV_KEY, code, !!value);
1474 }
1475 
1476 static inline void input_report_rel(struct input_dev *dev, unsigned int code, int value)
1477 {
1478         input_event(dev, EV_REL, code, value);
1479 }
1480 
1481 static inline void input_report_abs(struct input_dev *dev, unsigned int code, int value)
1482 {
1483         input_event(dev, EV_ABS, code, value);
1484 }
1485 
1486 static inline void input_report_ff_status(struct input_dev *dev, unsigned int code, int value)
1487 {
1488         input_event(dev, EV_FF_STATUS, code, value);
1489 }
1490 
1491 static inline void input_report_switch(struct input_dev *dev, unsigned int code, int value)
1492 {
1493         input_event(dev, EV_SW, code, !!value);
1494 }
1495 
1496 static inline void input_sync(struct input_dev *dev)
1497 {
1498         input_event(dev, EV_SYN, SYN_REPORT, 0);
1499 }
1500 
1501 static inline void input_mt_sync(struct input_dev *dev)
1502 {
1503         input_event(dev, EV_SYN, SYN_MT_REPORT, 0);
1504 }
1505 
1506 void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code);
1507 
1508 /**
1509  * input_set_events_per_packet - tell handlers about the driver event rate
1510  * @dev: the input device used by the driver
1511  * @n_events: the average number of events between calls to input_sync()
1512  *
1513  * If the event rate sent from a device is unusually large, use this
1514  * function to set the expected event rate. This will allow handlers
1515  * to set up an appropriate buffer size for the event stream, in order
1516  * to minimize information loss.
1517  */
1518 static inline void input_set_events_per_packet(struct input_dev *dev, int n_events)
1519 {
1520         dev->hint_events_per_packet = n_events;
1521 }
1522 
1523 void input_alloc_absinfo(struct input_dev *dev);
1524 void input_set_abs_params(struct input_dev *dev, unsigned int axis,
1525                           int min, int max, int fuzz, int flat);
1526 
1527 #define INPUT_GENERATE_ABS_ACCESSORS(_suffix, _item)                    \
1528 static inline int input_abs_get_##_suffix(struct input_dev *dev,        \
1529                                           unsigned int axis)            \
1530 {                                                                       \
1531         return dev->absinfo ? dev->absinfo[axis]._item : 0;             \
1532 }                                                                       \
1533                                                                         \
1534 static inline void input_abs_set_##_suffix(struct input_dev *dev,       \
1535                                            unsigned int axis, int val)  \
1536 {                                                                       \
1537         input_alloc_absinfo(dev);                                       \
1538         if (dev->absinfo)                                               \
1539                 dev->absinfo[axis]._item = val;                         \
1540 }
1541 
1542 INPUT_GENERATE_ABS_ACCESSORS(val, value)
1543 INPUT_GENERATE_ABS_ACCESSORS(min, minimum)
1544 INPUT_GENERATE_ABS_ACCESSORS(max, maximum)
1545 INPUT_GENERATE_ABS_ACCESSORS(fuzz, fuzz)
1546 INPUT_GENERATE_ABS_ACCESSORS(flat, flat)
1547 INPUT_GENERATE_ABS_ACCESSORS(res, resolution)
1548 
1549 int input_scancode_to_scalar(const struct input_keymap_entry *ke,
1550                              unsigned int *scancode);
1551 
1552 int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke);
1553 int input_set_keycode(struct input_dev *dev,
1554                       const struct input_keymap_entry *ke);
1555 
1556 extern struct class input_class;
1557 
1558 /**
1559  * struct ff_device - force-feedback part of an input device
1560  * @upload: Called to upload an new effect into device
1561  * @erase: Called to erase an effect from device
1562  * @playback: Called to request device to start playing specified effect
1563  * @set_gain: Called to set specified gain
1564  * @set_autocenter: Called to auto-center device
1565  * @destroy: called by input core when parent input device is being
1566  *      destroyed
1567  * @private: driver-specific data, will be freed automatically
1568  * @ffbit: bitmap of force feedback capabilities truly supported by
1569  *      device (not emulated like ones in input_dev->ffbit)
1570  * @mutex: mutex for serializing access to the device
1571  * @max_effects: maximum number of effects supported by device
1572  * @effects: pointer to an array of effects currently loaded into device
1573  * @effect_owners: array of effect owners; when file handle owning
1574  *      an effect gets closed the effect is automatically erased
1575  *
1576  * Every force-feedback device must implement upload() and playback()
1577  * methods; erase() is optional. set_gain() and set_autocenter() need
1578  * only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
1579  * bits.
1580  *
1581  * Note that playback(), set_gain() and set_autocenter() are called with
1582  * dev->event_lock spinlock held and interrupts off and thus may not
1583  * sleep.
1584  */
1585 struct ff_device {
1586         int (*upload)(struct input_dev *dev, struct ff_effect *effect,
1587                       struct ff_effect *old);
1588         int (*erase)(struct input_dev *dev, int effect_id);
1589 
1590         int (*playback)(struct input_dev *dev, int effect_id, int value);
1591         void (*set_gain)(struct input_dev *dev, u16 gain);
1592         void (*set_autocenter)(struct input_dev *dev, u16 magnitude);
1593 
1594         void (*destroy)(struct ff_device *);
1595 
1596         void *private;
1597 
1598         unsigned long ffbit[BITS_TO_LONGS(FF_CNT)];
1599 
1600         struct mutex mutex;
1601 
1602         int max_effects;
1603         struct ff_effect *effects;
1604         struct file *effect_owners[];
1605 };
1606 
1607 int input_ff_create(struct input_dev *dev, int max_effects);
1608 void input_ff_destroy(struct input_dev *dev);
1609 
1610 int input_ff_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
1611 
1612 int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, struct file *file);
1613 int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file);
1614 
1615 int input_ff_create_memless(struct input_dev *dev, void *data,
1616                 int (*play_effect)(struct input_dev *, void *, struct ff_effect *));
1617 
1618 #endif
1619 #endif
1620 

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