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dd873966 | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2fe7c318 GH |
2 | /* |
3 | * Copyright (c) 1999-2002 Vojtech Pavlik | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published by | |
7 | * the Free Software Foundation. | |
8 | */ | |
9 | #ifndef _INPUT_H | |
10 | #define _INPUT_H | |
11 | ||
12 | ||
13 | #include <sys/time.h> | |
2fe7c318 GH |
14 | #include <sys/types.h> |
15 | #include "standard-headers/linux/types.h" | |
16 | ||
fff02bc0 | 17 | #include "standard-headers/linux/input-event-codes.h" |
2fe7c318 GH |
18 | |
19 | /* | |
20 | * The event structure itself | |
9f2d175d PB |
21 | * Note that __USE_TIME_BITS64 is defined by libc based on |
22 | * application's request to use 64 bit time_t. | |
2fe7c318 GH |
23 | */ |
24 | ||
25 | struct input_event { | |
d9cb4336 | 26 | #if (HOST_LONG_BITS != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL__) |
2fe7c318 | 27 | struct timeval time; |
9f2d175d PB |
28 | #define input_event_sec time.tv_sec |
29 | #define input_event_usec time.tv_usec | |
30 | #else | |
65a6d8dd | 31 | unsigned long __sec; |
d9cb4336 CH |
32 | #if defined(__sparc__) && defined(__arch64__) |
33 | unsigned int __usec; | |
34 | #else | |
65a6d8dd | 35 | unsigned long __usec; |
d9cb4336 | 36 | #endif |
9f2d175d PB |
37 | #define input_event_sec __sec |
38 | #define input_event_usec __usec | |
39 | #endif | |
2fe7c318 GH |
40 | uint16_t type; |
41 | uint16_t code; | |
42 | int32_t value; | |
43 | }; | |
44 | ||
45 | /* | |
46 | * Protocol version. | |
47 | */ | |
48 | ||
49 | #define EV_VERSION 0x010001 | |
50 | ||
51 | /* | |
52 | * IOCTLs (0x00 - 0x7f) | |
53 | */ | |
54 | ||
55 | struct input_id { | |
56 | uint16_t bustype; | |
57 | uint16_t vendor; | |
58 | uint16_t product; | |
59 | uint16_t version; | |
60 | }; | |
61 | ||
62 | /** | |
63 | * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls | |
64 | * @value: latest reported value for the axis. | |
65 | * @minimum: specifies minimum value for the axis. | |
66 | * @maximum: specifies maximum value for the axis. | |
67 | * @fuzz: specifies fuzz value that is used to filter noise from | |
68 | * the event stream. | |
69 | * @flat: values that are within this value will be discarded by | |
70 | * joydev interface and reported as 0 instead. | |
71 | * @resolution: specifies resolution for the values reported for | |
72 | * the axis. | |
73 | * | |
74 | * Note that input core does not clamp reported values to the | |
75 | * [minimum, maximum] limits, such task is left to userspace. | |
76 | * | |
74c98e20 CH |
77 | * The default resolution for main axes (ABS_X, ABS_Y, ABS_Z) |
78 | * is reported in units per millimeter (units/mm), resolution | |
79 | * for rotational axes (ABS_RX, ABS_RY, ABS_RZ) is reported | |
80 | * in units per radian. | |
81 | * When INPUT_PROP_ACCELEROMETER is set the resolution changes. | |
82 | * The main axes (ABS_X, ABS_Y, ABS_Z) are then reported in | |
83 | * in units per g (units/g) and in units per degree per second | |
84 | * (units/deg/s) for rotational axes (ABS_RX, ABS_RY, ABS_RZ). | |
2fe7c318 GH |
85 | */ |
86 | struct input_absinfo { | |
87 | int32_t value; | |
88 | int32_t minimum; | |
89 | int32_t maximum; | |
90 | int32_t fuzz; | |
91 | int32_t flat; | |
92 | int32_t resolution; | |
93 | }; | |
94 | ||
95 | /** | |
96 | * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls | |
97 | * @scancode: scancode represented in machine-endian form. | |
98 | * @len: length of the scancode that resides in @scancode buffer. | |
99 | * @index: index in the keymap, may be used instead of scancode | |
100 | * @flags: allows to specify how kernel should handle the request. For | |
101 | * example, setting INPUT_KEYMAP_BY_INDEX flag indicates that kernel | |
102 | * should perform lookup in keymap by @index instead of @scancode | |
103 | * @keycode: key code assigned to this scancode | |
104 | * | |
105 | * The structure is used to retrieve and modify keymap data. Users have | |
106 | * option of performing lookup either by @scancode itself or by @index | |
107 | * in keymap entry. EVIOCGKEYCODE will also return scancode or index | |
108 | * (depending on which element was used to perform lookup). | |
109 | */ | |
110 | struct input_keymap_entry { | |
111 | #define INPUT_KEYMAP_BY_INDEX (1 << 0) | |
112 | uint8_t flags; | |
113 | uint8_t len; | |
114 | uint16_t index; | |
115 | uint32_t keycode; | |
116 | uint8_t scancode[32]; | |
117 | }; | |
118 | ||
fff02bc0 PB |
119 | struct input_mask { |
120 | uint32_t type; | |
121 | uint32_t codes_size; | |
122 | uint64_t codes_ptr; | |
123 | }; | |
124 | ||
2fe7c318 GH |
125 | #define EVIOCGVERSION _IOR('E', 0x01, int) /* get driver version */ |
126 | #define EVIOCGID _IOR('E', 0x02, struct input_id) /* get device ID */ | |
127 | #define EVIOCGREP _IOR('E', 0x03, unsigned int[2]) /* get repeat settings */ | |
128 | #define EVIOCSREP _IOW('E', 0x03, unsigned int[2]) /* set repeat settings */ | |
129 | ||
130 | #define EVIOCGKEYCODE _IOR('E', 0x04, unsigned int[2]) /* get keycode */ | |
131 | #define EVIOCGKEYCODE_V2 _IOR('E', 0x04, struct input_keymap_entry) | |
132 | #define EVIOCSKEYCODE _IOW('E', 0x04, unsigned int[2]) /* set keycode */ | |
133 | #define EVIOCSKEYCODE_V2 _IOW('E', 0x04, struct input_keymap_entry) | |
134 | ||
135 | #define EVIOCGNAME(len) _IOC(_IOC_READ, 'E', 0x06, len) /* get device name */ | |
136 | #define EVIOCGPHYS(len) _IOC(_IOC_READ, 'E', 0x07, len) /* get physical location */ | |
137 | #define EVIOCGUNIQ(len) _IOC(_IOC_READ, 'E', 0x08, len) /* get unique identifier */ | |
138 | #define EVIOCGPROP(len) _IOC(_IOC_READ, 'E', 0x09, len) /* get device properties */ | |
139 | ||
140 | /** | |
141 | * EVIOCGMTSLOTS(len) - get MT slot values | |
142 | * @len: size of the data buffer in bytes | |
143 | * | |
144 | * The ioctl buffer argument should be binary equivalent to | |
145 | * | |
146 | * struct input_mt_request_layout { | |
147 | * uint32_t code; | |
148 | * int32_t values[num_slots]; | |
149 | * }; | |
150 | * | |
151 | * where num_slots is the (arbitrary) number of MT slots to extract. | |
152 | * | |
153 | * The ioctl size argument (len) is the size of the buffer, which | |
154 | * should satisfy len = (num_slots + 1) * sizeof(int32_t). If len is | |
155 | * too small to fit all available slots, the first num_slots are | |
156 | * returned. | |
157 | * | |
158 | * Before the call, code is set to the wanted ABS_MT event type. On | |
159 | * return, values[] is filled with the slot values for the specified | |
160 | * ABS_MT code. | |
161 | * | |
162 | * If the request code is not an ABS_MT value, -EINVAL is returned. | |
163 | */ | |
164 | #define EVIOCGMTSLOTS(len) _IOC(_IOC_READ, 'E', 0x0a, len) | |
165 | ||
166 | #define EVIOCGKEY(len) _IOC(_IOC_READ, 'E', 0x18, len) /* get global key state */ | |
167 | #define EVIOCGLED(len) _IOC(_IOC_READ, 'E', 0x19, len) /* get all LEDs */ | |
168 | #define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */ | |
169 | #define EVIOCGSW(len) _IOC(_IOC_READ, 'E', 0x1b, len) /* get all switch states */ | |
170 | ||
171 | #define EVIOCGBIT(ev,len) _IOC(_IOC_READ, 'E', 0x20 + (ev), len) /* get event bits */ | |
172 | #define EVIOCGABS(abs) _IOR('E', 0x40 + (abs), struct input_absinfo) /* get abs value/limits */ | |
173 | #define EVIOCSABS(abs) _IOW('E', 0xc0 + (abs), struct input_absinfo) /* set abs value/limits */ | |
174 | ||
fff02bc0 | 175 | #define EVIOCSFF _IOW('E', 0x80, struct ff_effect) /* send a force effect to a force feedback device */ |
2fe7c318 GH |
176 | #define EVIOCRMFF _IOW('E', 0x81, int) /* Erase a force effect */ |
177 | #define EVIOCGEFFECTS _IOR('E', 0x84, int) /* Report number of effects playable at the same time */ | |
178 | ||
179 | #define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */ | |
180 | #define EVIOCREVOKE _IOW('E', 0x91, int) /* Revoke device access */ | |
181 | ||
fff02bc0 PB |
182 | /** |
183 | * EVIOCGMASK - Retrieve current event mask | |
2fe7c318 | 184 | * |
fff02bc0 PB |
185 | * This ioctl allows user to retrieve the current event mask for specific |
186 | * event type. The argument must be of type "struct input_mask" and | |
187 | * specifies the event type to query, the address of the receive buffer and | |
188 | * the size of the receive buffer. | |
189 | * | |
190 | * The event mask is a per-client mask that specifies which events are | |
191 | * forwarded to the client. Each event code is represented by a single bit | |
192 | * in the event mask. If the bit is set, the event is passed to the client | |
193 | * normally. Otherwise, the event is filtered and will never be queued on | |
194 | * the client's receive buffer. | |
195 | * | |
196 | * Event masks do not affect global state of the input device. They only | |
197 | * affect the file descriptor they are applied to. | |
198 | * | |
199 | * The default event mask for a client has all bits set, i.e. all events | |
200 | * are forwarded to the client. If the kernel is queried for an unknown | |
201 | * event type or if the receive buffer is larger than the number of | |
202 | * event codes known to the kernel, the kernel returns all zeroes for those | |
203 | * codes. | |
204 | * | |
205 | * At maximum, codes_size bytes are copied. | |
206 | * | |
207 | * This ioctl may fail with ENODEV in case the file is revoked, EFAULT | |
208 | * if the receive-buffer points to invalid memory, or EINVAL if the kernel | |
209 | * does not implement the ioctl. | |
2fe7c318 | 210 | */ |
fff02bc0 | 211 | #define EVIOCGMASK _IOR('E', 0x92, struct input_mask) /* Get event-masks */ |
2fe7c318 | 212 | |
fff02bc0 PB |
213 | /** |
214 | * EVIOCSMASK - Set event mask | |
215 | * | |
216 | * This ioctl is the counterpart to EVIOCGMASK. Instead of receiving the | |
217 | * current event mask, this changes the client's event mask for a specific | |
218 | * type. See EVIOCGMASK for a description of event-masks and the | |
219 | * argument-type. | |
220 | * | |
221 | * This ioctl provides full forward compatibility. If the passed event type | |
222 | * is unknown to the kernel, or if the number of event codes specified in | |
223 | * the mask is bigger than what is known to the kernel, the ioctl is still | |
224 | * accepted and applied. However, any unknown codes are left untouched and | |
225 | * stay cleared. That means, the kernel always filters unknown codes | |
226 | * regardless of what the client requests. If the new mask doesn't cover | |
227 | * all known event-codes, all remaining codes are automatically cleared and | |
228 | * thus filtered. | |
229 | * | |
230 | * This ioctl may fail with ENODEV in case the file is revoked. EFAULT is | |
231 | * returned if the receive-buffer points to invalid memory. EINVAL is returned | |
232 | * if the kernel does not implement the ioctl. | |
2fe7c318 | 233 | */ |
fff02bc0 | 234 | #define EVIOCSMASK _IOW('E', 0x93, struct input_mask) /* Set event-masks */ |
2fe7c318 | 235 | |
fff02bc0 | 236 | #define EVIOCSCLOCKID _IOW('E', 0xa0, int) /* Set clockid to be used for timestamps */ |
2fe7c318 GH |
237 | |
238 | /* | |
239 | * IDs. | |
240 | */ | |
241 | ||
242 | #define ID_BUS 0 | |
243 | #define ID_VENDOR 1 | |
244 | #define ID_PRODUCT 2 | |
245 | #define ID_VERSION 3 | |
246 | ||
247 | #define BUS_PCI 0x01 | |
248 | #define BUS_ISAPNP 0x02 | |
249 | #define BUS_USB 0x03 | |
250 | #define BUS_HIL 0x04 | |
251 | #define BUS_BLUETOOTH 0x05 | |
252 | #define BUS_VIRTUAL 0x06 | |
253 | ||
254 | #define BUS_ISA 0x10 | |
255 | #define BUS_I8042 0x11 | |
256 | #define BUS_XTKBD 0x12 | |
257 | #define BUS_RS232 0x13 | |
258 | #define BUS_GAMEPORT 0x14 | |
259 | #define BUS_PARPORT 0x15 | |
260 | #define BUS_AMIGA 0x16 | |
261 | #define BUS_ADB 0x17 | |
262 | #define BUS_I2C 0x18 | |
263 | #define BUS_HOST 0x19 | |
264 | #define BUS_GSC 0x1A | |
265 | #define BUS_ATARI 0x1B | |
266 | #define BUS_SPI 0x1C | |
b89485a5 | 267 | #define BUS_RMI 0x1D |
dbdfea92 | 268 | #define BUS_CEC 0x1E |
bc204035 | 269 | #define BUS_INTEL_ISHTP 0x1F |
2fe7c318 GH |
270 | |
271 | /* | |
272 | * MT_TOOL types | |
273 | */ | |
8f3cd250 CH |
274 | #define MT_TOOL_FINGER 0x00 |
275 | #define MT_TOOL_PEN 0x01 | |
276 | #define MT_TOOL_PALM 0x02 | |
277 | #define MT_TOOL_DIAL 0x0a | |
278 | #define MT_TOOL_MAX 0x0f | |
2fe7c318 GH |
279 | |
280 | /* | |
281 | * Values describing the status of a force-feedback effect | |
282 | */ | |
283 | #define FF_STATUS_STOPPED 0x00 | |
284 | #define FF_STATUS_PLAYING 0x01 | |
285 | #define FF_STATUS_MAX 0x01 | |
286 | ||
287 | /* | |
288 | * Structures used in ioctls to upload effects to a device | |
289 | * They are pieces of a bigger structure (called ff_effect) | |
290 | */ | |
291 | ||
292 | /* | |
293 | * All duration values are expressed in ms. Values above 32767 ms (0x7fff) | |
294 | * should not be used and have unspecified results. | |
295 | */ | |
296 | ||
297 | /** | |
298 | * struct ff_replay - defines scheduling of the force-feedback effect | |
299 | * @length: duration of the effect | |
300 | * @delay: delay before effect should start playing | |
301 | */ | |
302 | struct ff_replay { | |
303 | uint16_t length; | |
304 | uint16_t delay; | |
305 | }; | |
306 | ||
307 | /** | |
308 | * struct ff_trigger - defines what triggers the force-feedback effect | |
309 | * @button: number of the button triggering the effect | |
310 | * @interval: controls how soon the effect can be re-triggered | |
311 | */ | |
312 | struct ff_trigger { | |
313 | uint16_t button; | |
314 | uint16_t interval; | |
315 | }; | |
316 | ||
317 | /** | |
318 | * struct ff_envelope - generic force-feedback effect envelope | |
319 | * @attack_length: duration of the attack (ms) | |
320 | * @attack_level: level at the beginning of the attack | |
321 | * @fade_length: duration of fade (ms) | |
322 | * @fade_level: level at the end of fade | |
323 | * | |
324 | * The @attack_level and @fade_level are absolute values; when applying | |
325 | * envelope force-feedback core will convert to positive/negative | |
326 | * value based on polarity of the default level of the effect. | |
327 | * Valid range for the attack and fade levels is 0x0000 - 0x7fff | |
328 | */ | |
329 | struct ff_envelope { | |
330 | uint16_t attack_length; | |
331 | uint16_t attack_level; | |
332 | uint16_t fade_length; | |
333 | uint16_t fade_level; | |
334 | }; | |
335 | ||
336 | /** | |
337 | * struct ff_constant_effect - defines parameters of a constant force-feedback effect | |
338 | * @level: strength of the effect; may be negative | |
339 | * @envelope: envelope data | |
340 | */ | |
341 | struct ff_constant_effect { | |
342 | int16_t level; | |
343 | struct ff_envelope envelope; | |
344 | }; | |
345 | ||
346 | /** | |
347 | * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect | |
348 | * @start_level: beginning strength of the effect; may be negative | |
349 | * @end_level: final strength of the effect; may be negative | |
350 | * @envelope: envelope data | |
351 | */ | |
352 | struct ff_ramp_effect { | |
353 | int16_t start_level; | |
354 | int16_t end_level; | |
355 | struct ff_envelope envelope; | |
356 | }; | |
357 | ||
358 | /** | |
359 | * struct ff_condition_effect - defines a spring or friction force-feedback effect | |
360 | * @right_saturation: maximum level when joystick moved all way to the right | |
361 | * @left_saturation: same for the left side | |
362 | * @right_coeff: controls how fast the force grows when the joystick moves | |
363 | * to the right | |
364 | * @left_coeff: same for the left side | |
365 | * @deadband: size of the dead zone, where no force is produced | |
366 | * @center: position of the dead zone | |
367 | */ | |
368 | struct ff_condition_effect { | |
369 | uint16_t right_saturation; | |
370 | uint16_t left_saturation; | |
371 | ||
372 | int16_t right_coeff; | |
373 | int16_t left_coeff; | |
374 | ||
375 | uint16_t deadband; | |
376 | int16_t center; | |
377 | }; | |
378 | ||
379 | /** | |
380 | * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect | |
381 | * @waveform: kind of the effect (wave) | |
382 | * @period: period of the wave (ms) | |
383 | * @magnitude: peak value | |
384 | * @offset: mean value of the wave (roughly) | |
385 | * @phase: 'horizontal' shift | |
386 | * @envelope: envelope data | |
387 | * @custom_len: number of samples (FF_CUSTOM only) | |
388 | * @custom_data: buffer of samples (FF_CUSTOM only) | |
389 | * | |
390 | * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, | |
391 | * FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined | |
392 | * for the time being as no driver supports it yet. | |
393 | * | |
394 | * Note: the data pointed by custom_data is copied by the driver. | |
395 | * You can therefore dispose of the memory after the upload/update. | |
396 | */ | |
397 | struct ff_periodic_effect { | |
398 | uint16_t waveform; | |
399 | uint16_t period; | |
400 | int16_t magnitude; | |
401 | int16_t offset; | |
402 | uint16_t phase; | |
403 | ||
404 | struct ff_envelope envelope; | |
405 | ||
406 | uint32_t custom_len; | |
407 | int16_t *custom_data; | |
408 | }; | |
409 | ||
410 | /** | |
411 | * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect | |
412 | * @strong_magnitude: magnitude of the heavy motor | |
413 | * @weak_magnitude: magnitude of the light one | |
414 | * | |
415 | * Some rumble pads have two motors of different weight. Strong_magnitude | |
416 | * represents the magnitude of the vibration generated by the heavy one. | |
417 | */ | |
418 | struct ff_rumble_effect { | |
419 | uint16_t strong_magnitude; | |
420 | uint16_t weak_magnitude; | |
421 | }; | |
422 | ||
423 | /** | |
424 | * struct ff_effect - defines force feedback effect | |
425 | * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING, | |
426 | * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM) | |
427 | * @id: an unique id assigned to an effect | |
428 | * @direction: direction of the effect | |
429 | * @trigger: trigger conditions (struct ff_trigger) | |
430 | * @replay: scheduling of the effect (struct ff_replay) | |
431 | * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect, | |
432 | * ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further | |
433 | * defining effect parameters | |
434 | * | |
435 | * This structure is sent through ioctl from the application to the driver. | |
436 | * To create a new effect application should set its @id to -1; the kernel | |
437 | * will return assigned @id which can later be used to update or delete | |
438 | * this effect. | |
439 | * | |
440 | * Direction of the effect is encoded as follows: | |
441 | * 0 deg -> 0x0000 (down) | |
442 | * 90 deg -> 0x4000 (left) | |
443 | * 180 deg -> 0x8000 (up) | |
444 | * 270 deg -> 0xC000 (right) | |
445 | */ | |
446 | struct ff_effect { | |
447 | uint16_t type; | |
448 | int16_t id; | |
449 | uint16_t direction; | |
450 | struct ff_trigger trigger; | |
451 | struct ff_replay replay; | |
452 | ||
453 | union { | |
454 | struct ff_constant_effect constant; | |
455 | struct ff_ramp_effect ramp; | |
456 | struct ff_periodic_effect periodic; | |
457 | struct ff_condition_effect condition[2]; /* One for each axis */ | |
458 | struct ff_rumble_effect rumble; | |
459 | } u; | |
460 | }; | |
461 | ||
462 | /* | |
463 | * Force feedback effect types | |
464 | */ | |
465 | ||
466 | #define FF_RUMBLE 0x50 | |
467 | #define FF_PERIODIC 0x51 | |
468 | #define FF_CONSTANT 0x52 | |
469 | #define FF_SPRING 0x53 | |
470 | #define FF_FRICTION 0x54 | |
471 | #define FF_DAMPER 0x55 | |
472 | #define FF_INERTIA 0x56 | |
473 | #define FF_RAMP 0x57 | |
474 | ||
475 | #define FF_EFFECT_MIN FF_RUMBLE | |
476 | #define FF_EFFECT_MAX FF_RAMP | |
477 | ||
478 | /* | |
479 | * Force feedback periodic effect types | |
480 | */ | |
481 | ||
482 | #define FF_SQUARE 0x58 | |
483 | #define FF_TRIANGLE 0x59 | |
484 | #define FF_SINE 0x5a | |
485 | #define FF_SAW_UP 0x5b | |
486 | #define FF_SAW_DOWN 0x5c | |
487 | #define FF_CUSTOM 0x5d | |
488 | ||
489 | #define FF_WAVEFORM_MIN FF_SQUARE | |
490 | #define FF_WAVEFORM_MAX FF_CUSTOM | |
491 | ||
492 | /* | |
493 | * Set ff device properties | |
494 | */ | |
495 | ||
496 | #define FF_GAIN 0x60 | |
497 | #define FF_AUTOCENTER 0x61 | |
498 | ||
fff02bc0 PB |
499 | /* |
500 | * ff->playback(effect_id = FF_GAIN) is the first effect_id to | |
501 | * cause a collision with another ff method, in this case ff->set_gain(). | |
502 | * Therefore the greatest safe value for effect_id is FF_GAIN - 1, | |
503 | * and thus the total number of effects should never exceed FF_GAIN. | |
504 | */ | |
505 | #define FF_MAX_EFFECTS FF_GAIN | |
506 | ||
2fe7c318 GH |
507 | #define FF_MAX 0x7f |
508 | #define FF_CNT (FF_MAX+1) | |
509 | ||
510 | #endif /* _INPUT_H */ |