Linux/include/uapi/linux/input.h
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Linux/include/uapi/linux/input.h 1 /* 2 * Copyright (c) 1999-2002 Vojtech Pavlik 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 as published by 6 * the Free Software Foundation. 7 */ 8 #ifndef _UAPI_INPUT_H 9 #define _UAPI_INPUT_H 10 11 12 #ifndef __KERNEL__ 13 #include <sys/time.h> 14 #include <sys/ioctl.h> 15 #include <sys/types.h> 16 #include <linux/types.h> 17 #endif 18 19 #include "input-event-codes.h" 20 21 /* 22 * The event structure itself 23 */ 24 25 struct input_event { 26 struct timeval time; 27 __u16 type; 28 __u16 code; 29 __s32 value; 30 }; 31 32 /* 33 * Protocol version. 34 */ 35 36 #define EV_VERSION 0x010001 37 38 /* 39 * IOCTLs (0x00 - 0x7f) 40 */ 41 42 struct input_id { 43 __u16 bustype; 44 __u16 vendor; 45 __u16 product; 46 __u16 version; 47 }; 48 49 /** 50 * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls 51 * @value: latest reported value for the axis. 52 * @minimum: specifies minimum value for the axis. 53 * @maximum: specifies maximum value for the axis. 54 * @fuzz: specifies fuzz value that is used to filter noise from 55 * the event stream. 56 * @flat: values that are within this value will be discarded by 57 * joydev interface and reported as 0 instead. 58 * @resolution: specifies resolution for the values reported for 59 * the axis. 60 * 61 * Note that input core does not clamp reported values to the 62 * [minimum, maximum] limits, such task is left to userspace. 63 * 64 * Resolution for main axes (ABS_X, ABS_Y, ABS_Z) is reported in 65 * units per millimeter (units/mm), resolution for rotational axes 66 * (ABS_RX, ABS_RY, ABS_RZ) is reported in units per radian. 67 */ 68 struct input_absinfo { 69 __s32 value; 70 __s32 minimum; 71 __s32 maximum; 72 __s32 fuzz; 73 __s32 flat; 74 __s32 resolution; 75 }; 76 77 /** 78 * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls 79 * @scancode: scancode represented in machine-endian form. 80 * @len: length of the scancode that resides in @scancode buffer. 81 * @index: index in the keymap, may be used instead of scancode 82 * @flags: allows to specify how kernel should handle the request. For 83 * example, setting INPUT_KEYMAP_BY_INDEX flag indicates that kernel 84 * should perform lookup in keymap by @index instead of @scancode 85 * @keycode: key code assigned to this scancode 86 * 87 * The structure is used to retrieve and modify keymap data. Users have 88 * option of performing lookup either by @scancode itself or by @index 89 * in keymap entry. EVIOCGKEYCODE will also return scancode or index 90 * (depending on which element was used to perform lookup). 91 */ 92 struct input_keymap_entry { 93 #define INPUT_KEYMAP_BY_INDEX (1 << 0) 94 __u8 flags; 95 __u8 len; 96 __u16 index; 97 __u32 keycode; 98 __u8 scancode[32]; 99 };100 101 struct input_mask {102 __u32 type;103 __u32 codes_size;104 __u64 codes_ptr;105 };106 107 #define EVIOCGVERSION _IOR('E', 0x01, int) /* get driver version */108 #define EVIOCGID _IOR('E', 0x02, struct input_id) /* get device ID */109 #define EVIOCGREP _IOR('E', 0x03, unsigned int[2]) /* get repeat settings */110 #define EVIOCSREP _IOW('E', 0x03, unsigned int[2]) /* set repeat settings */111 112 #define EVIOCGKEYCODE _IOR('E', 0x04, unsigned int[2]) /* get keycode */113 #define EVIOCGKEYCODE_V2 _IOR('E', 0x04, struct input_keymap_entry)114 #define EVIOCSKEYCODE _IOW('E', 0x04, unsigned int[2]) /* set keycode */115 #define EVIOCSKEYCODE_V2 _IOW('E', 0x04, struct input_keymap_entry)116 117 #define EVIOCGNAME(len) _IOC(_IOC_READ, 'E', 0x06, len) /* get device name */118 #define EVIOCGPHYS(len) _IOC(_IOC_READ, 'E', 0x07, len) /* get physical location */119 #define EVIOCGUNIQ(len) _IOC(_IOC_READ, 'E', 0x08, len) /* get unique identifier */120 #define EVIOCGPROP(len) _IOC(_IOC_READ, 'E', 0x09, len) /* get device properties */121 122 /**123 * EVIOCGMTSLOTS(len) - get MT slot values124 * @len: size of the data buffer in bytes125 *126 * The ioctl buffer argument should be binary equivalent to127 *128 * struct input_mt_request_layout {129 * __u32 code;130 * __s32 values[num_slots];131 * };132 *133 * where num_slots is the (arbitrary) number of MT slots to extract.134 *135 * The ioctl size argument (len) is the size of the buffer, which136 * should satisfy len = (num_slots + 1) * sizeof(__s32). If len is137 * too small to fit all available slots, the first num_slots are138 * returned.139 *140 * Before the call, code is set to the wanted ABS_MT event type. On141 * return, values[] is filled with the slot values for the specified142 * ABS_MT code.143 *144 * If the request code is not an ABS_MT value, -EINVAL is returned.145 */146 #define EVIOCGMTSLOTS(len) _IOC(_IOC_READ, 'E', 0x0a, len)147 148 #define EVIOCGKEY(len) _IOC(_IOC_READ, 'E', 0x18, len) /* get global key state */149 #define EVIOCGLED(len) _IOC(_IOC_READ, 'E', 0x19, len) /* get all LEDs */150 #define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */151 #define EVIOCGSW(len) _IOC(_IOC_READ, 'E', 0x1b, len) /* get all switch states */152 153 #define EVIOCGBIT(ev,len) _IOC(_IOC_READ, 'E', 0x20 + (ev), len) /* get event bits */154 #define EVIOCGABS(abs) _IOR('E', 0x40 + (abs), struct input_absinfo) /* get abs value/limits */155 #define EVIOCSABS(abs) _IOW('E', 0xc0 + (abs), struct input_absinfo) /* set abs value/limits */156 157 #define EVIOCSFF _IOW('E', 0x80, struct ff_effect) /* send a force effect to a force feedback device */158 #define EVIOCRMFF _IOW('E', 0x81, int) /* Erase a force effect */159 #define EVIOCGEFFECTS _IOR('E', 0x84, int) /* Report number of effects playable at the same time */160 161 #define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */162 #define EVIOCREVOKE _IOW('E', 0x91, int) /* Revoke device access */163 164 /**165 * EVIOCGMASK - Retrieve current event mask166 *167 * This ioctl allows user to retrieve the current event mask for specific168 * event type. The argument must be of type "struct input_mask" and169 * specifies the event type to query, the address of the receive buffer and170 * the size of the receive buffer.171 *172 * The event mask is a per-client mask that specifies which events are173 * forwarded to the client. Each event code is represented by a single bit174 * in the event mask. If the bit is set, the event is passed to the client175 * normally. Otherwise, the event is filtered and will never be queued on176 * the client's receive buffer.177 *178 * Event masks do not affect global state of the input device. They only179 * affect the file descriptor they are applied to.180 *181 * The default event mask for a client has all bits set, i.e. all events182 * are forwarded to the client. If the kernel is queried for an unknown183 * event type or if the receive buffer is larger than the number of184 * event codes known to the kernel, the kernel returns all zeroes for those185 * codes.186 *187 * At maximum, codes_size bytes are copied.188 *189 * This ioctl may fail with ENODEV in case the file is revoked, EFAULT190 * if the receive-buffer points to invalid memory, or EINVAL if the kernel191 * does not implement the ioctl.192 */193 #define EVIOCGMASK _IOR('E', 0x92, struct input_mask) /* Get event-masks */194 195 /**196 * EVIOCSMASK - Set event mask197 *198 * This ioctl is the counterpart to EVIOCGMASK. Instead of receiving the199 * current event mask, this changes the client's event mask for a specific200 * type. See EVIOCGMASK for a description of event-masks and the201 * argument-type.202 *203 * This ioctl provides full forward compatibility. If the passed event type204 * is unknown to the kernel, or if the number of event codes specified in205 * the mask is bigger than what is known to the kernel, the ioctl is still206 * accepted and applied. However, any unknown codes are left untouched and207 * stay cleared. That means, the kernel always filters unknown codes208 * regardless of what the client requests. If the new mask doesn't cover209 * all known event-codes, all remaining codes are automatically cleared and210 * thus filtered.211 *212 * This ioctl may fail with ENODEV in case the file is revoked. EFAULT is213 * returned if the receive-buffer points to invalid memory. EINVAL is returned214 * if the kernel does not implement the ioctl.215 */216 #define EVIOCSMASK _IOW('E', 0x93, struct input_mask) /* Set event-masks */217 218 #define EVIOCSCLOCKID _IOW('E', 0xa0, int) /* Set clockid to be used for timestamps */219 220 /*221 * IDs.222 */223 224 #define ID_BUS 0225 #define ID_VENDOR 1226 #define ID_PRODUCT 2227 #define ID_VERSION 3228 229 #define BUS_PCI 0x01230 #define BUS_ISAPNP 0x02231 #define BUS_USB 0x03232 #define BUS_HIL 0x04233 #define BUS_BLUETOOTH 0x05234 #define BUS_VIRTUAL 0x06235 236 #define BUS_ISA 0x10237 #define BUS_I8042 0x11238 #define BUS_XTKBD 0x12239 #define BUS_RS232 0x13240 #define BUS_GAMEPORT 0x14241 #define BUS_PARPORT 0x15242 #define BUS_AMIGA 0x16243 #define BUS_ADB 0x17244 #define BUS_I2C 0x18245 #define BUS_HOST 0x19246 #define BUS_GSC 0x1A247 #define BUS_ATARI 0x1B248 #define BUS_SPI 0x1C249 250 /*251 * MT_TOOL types252 */253 #define MT_TOOL_FINGER 0254 #define MT_TOOL_PEN 1255 #define MT_TOOL_PALM 2256 #define MT_TOOL_MAX 2257 258 /*259 * Values describing the status of a force-feedback effect260 */261 #define FF_STATUS_STOPPED 0x00262 #define FF_STATUS_PLAYING 0x01263 #define FF_STATUS_MAX 0x01264 265 /*266 * Structures used in ioctls to upload effects to a device267 * They are pieces of a bigger structure (called ff_effect)268 */269 270 /*271 * All duration values are expressed in ms. Values above 32767 ms (0x7fff)272 * should not be used and have unspecified results.273 */274 275 /**276 * struct ff_replay - defines scheduling of the force-feedback effect277 * @length: duration of the effect278 * @delay: delay before effect should start playing279 */280 struct ff_replay {281 __u16 length;282 __u16 delay;283 };284 285 /**286 * struct ff_trigger - defines what triggers the force-feedback effect287 * @button: number of the button triggering the effect288 * @interval: controls how soon the effect can be re-triggered289 */290 struct ff_trigger {291 __u16 button;292 __u16 interval;293 };294 295 /**296 * struct ff_envelope - generic force-feedback effect envelope297 * @attack_length: duration of the attack (ms)298 * @attack_level: level at the beginning of the attack299 * @fade_length: duration of fade (ms)300 * @fade_level: level at the end of fade301 *302 * The @attack_level and @fade_level are absolute values; when applying303 * envelope force-feedback core will convert to positive/negative304 * value based on polarity of the default level of the effect.305 * Valid range for the attack and fade levels is 0x0000 - 0x7fff306 */307 struct ff_envelope {308 __u16 attack_length;309 __u16 attack_level;310 __u16 fade_length;311 __u16 fade_level;312 };313 314 /**315 * struct ff_constant_effect - defines parameters of a constant force-feedback effect316 * @level: strength of the effect; may be negative317 * @envelope: envelope data318 */319 struct ff_constant_effect {320 __s16 level;321 struct ff_envelope envelope;322 };323 324 /**325 * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect326 * @start_level: beginning strength of the effect; may be negative327 * @end_level: final strength of the effect; may be negative328 * @envelope: envelope data329 */330 struct ff_ramp_effect {331 __s16 start_level;332 __s16 end_level;333 struct ff_envelope envelope;334 };335 336 /**337 * struct ff_condition_effect - defines a spring or friction force-feedback effect338 * @right_saturation: maximum level when joystick moved all way to the right339 * @left_saturation: same for the left side340 * @right_coeff: controls how fast the force grows when the joystick moves341 * to the right342 * @left_coeff: same for the left side343 * @deadband: size of the dead zone, where no force is produced344 * @center: position of the dead zone345 */346 struct ff_condition_effect {347 __u16 right_saturation;348 __u16 left_saturation;349 350 __s16 right_coeff;351 __s16 left_coeff;352 353 __u16 deadband;354 __s16 center;355 };356 357 /**358 * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect359 * @waveform: kind of the effect (wave)360 * @period: period of the wave (ms)361 * @magnitude: peak value362 * @offset: mean value of the wave (roughly)363 * @phase: 'horizontal' shift364 * @envelope: envelope data365 * @custom_len: number of samples (FF_CUSTOM only)366 * @custom_data: buffer of samples (FF_CUSTOM only)367 *368 * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,369 * FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined370 * for the time being as no driver supports it yet.371 *372 * Note: the data pointed by custom_data is copied by the driver.373 * You can therefore dispose of the memory after the upload/update.374 */375 struct ff_periodic_effect {376 __u16 waveform;377 __u16 period;378 __s16 magnitude;379 __s16 offset;380 __u16 phase;381 382 struct ff_envelope envelope;383 384 __u32 custom_len;385 __s16 __user *custom_data;386 };387 388 /**389 * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect390 * @strong_magnitude: magnitude of the heavy motor391 * @weak_magnitude: magnitude of the light one392 *393 * Some rumble pads have two motors of different weight. Strong_magnitude394 * represents the magnitude of the vibration generated by the heavy one.395 */396 struct ff_rumble_effect {397 __u16 strong_magnitude;398 __u16 weak_magnitude;399 };400 401 /**402 * struct ff_effect - defines force feedback effect403 * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,404 * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM)405 * @id: an unique id assigned to an effect406 * @direction: direction of the effect407 * @trigger: trigger conditions (struct ff_trigger)408 * @replay: scheduling of the effect (struct ff_replay)409 * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,410 * ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further411 * defining effect parameters412 *413 * This structure is sent through ioctl from the application to the driver.414 * To create a new effect application should set its @id to -1; the kernel415 * will return assigned @id which can later be used to update or delete416 * this effect.417 *418 * Direction of the effect is encoded as follows:419 * 0 deg -> 0x0000 (down)420 * 90 deg -> 0x4000 (left)421 * 180 deg -> 0x8000 (up)422 * 270 deg -> 0xC000 (right)423 */424 struct ff_effect {425 __u16 type;426 __s16 id;427 __u16 direction;428 struct ff_trigger trigger;429 struct ff_replay replay;430 431 union {432 struct ff_constant_effect constant;433 struct ff_ramp_effect ramp;434 struct ff_periodic_effect periodic;435 struct ff_condition_effect condition[2]; /* One for each axis */436 struct ff_rumble_effect rumble;437 } u;438 };439 440 /*441 * Force feedback effect types442 */443 444 #define FF_RUMBLE 0x50445 #define FF_PERIODIC 0x51446 #define FF_CONSTANT 0x52447 #define FF_SPRING 0x53448 #define FF_FRICTION 0x54449 #define FF_DAMPER 0x55450 #define FF_INERTIA 0x56451 #define FF_RAMP 0x57452 453 #define FF_EFFECT_MIN FF_RUMBLE454 #define FF_EFFECT_MAX FF_RAMP455 456 /*457 * Force feedback periodic effect types458 */459 460 #define FF_SQUARE 0x58461 #define FF_TRIANGLE 0x59462 #define FF_SINE 0x5a463 #define FF_SAW_UP 0x5b464 #define FF_SAW_DOWN 0x5c465 #define FF_CUSTOM 0x5d466 467 #define FF_WAVEFORM_MIN FF_SQUARE468 #define FF_WAVEFORM_MAX FF_CUSTOM469 470 /*471 * Set ff device properties472 */473 474 #define FF_GAIN 0x60475 #define FF_AUTOCENTER 0x61476 477 /*478 * ff->playback(effect_id = FF_GAIN) is the first effect_id to479 * cause a collision with another ff method, in this case ff->set_gain().480 * Therefore the greatest safe value for effect_id is FF_GAIN - 1,481 * and thus the total number of effects should never exceed FF_GAIN.482 */483 #define FF_MAX_EFFECTS FF_GAIN484 485 #define FF_MAX 0x7f486 #define FF_CNT (FF_MAX+1)487 488 #endif /* _UAPI_INPUT_H */489 This page was automatically generated byLXR 0.3.1 (source). • Linux is a registered trademark of Linus Torvalds • Contact us
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