Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/evdev/evdev_utils.c
Version:
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1 /*- 2 * Copyright (c) 2014 Jakub Wojciech Klama <jceel@FreeBSD.org> 3 * Copyright (c) 2015-2016 Vladimir Kondratyev <wulf@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/bus.h> 32 #include <sys/conf.h> 33 #include <sys/kbio.h> 34 #include <sys/kernel.h> 35 #include <sys/lock.h> 36 #include <sys/malloc.h> 37 #include <sys/mutex.h> 38 #include <sys/systm.h> 39 40 #include <dev/evdev/evdev.h> 41 #include <dev/evdev/input.h> 42 43 #define NONE KEY_RESERVED 44 45 static uint16_t evdev_usb_scancodes[256] = { 46 /* 0x00 - 0x27 */ 47 NONE, NONE, NONE, NONE, KEY_A, KEY_B, KEY_C, KEY_D, 48 KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, 49 KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, 50 KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, 51 KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, 52 /* 0x28 - 0x3f */ 53 KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, 54 KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE, 55 KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON, 56 KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, 57 KEY_SLASH, KEY_CAPSLOCK, KEY_F1, KEY_F2, 58 KEY_F3, KEY_F4, KEY_F5, KEY_F6, 59 /* 0x40 - 0x5f */ 60 KEY_F7, KEY_F8, KEY_F9, KEY_F10, 61 KEY_F11, KEY_F12, KEY_SYSRQ, KEY_SCROLLLOCK, 62 KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP, 63 KEY_DELETE, KEY_END, KEY_PAGEDOWN, KEY_RIGHT, 64 KEY_LEFT, KEY_DOWN, KEY_UP, KEY_NUMLOCK, 65 KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS, KEY_KPPLUS, 66 KEY_KPENTER, KEY_KP1, KEY_KP2, KEY_KP3, 67 KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, 68 /* 0x60 - 0x7f */ 69 KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, 70 KEY_102ND, KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, 71 KEY_F13, KEY_F14, KEY_F15, KEY_F16, 72 KEY_F17, KEY_F18, KEY_F19, KEY_F20, 73 KEY_F21, KEY_F22, KEY_F23, KEY_F24, 74 KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, 75 KEY_STOP, KEY_AGAIN, KEY_UNDO, KEY_CUT, 76 KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE, 77 /* 0x80 - 0x9f */ 78 KEY_VOLUMEUP, KEY_VOLUMEDOWN, NONE, NONE, 79 NONE, KEY_KPCOMMA, NONE, KEY_RO, 80 KEY_KATAKANAHIRAGANA, KEY_YEN,KEY_HENKAN, KEY_MUHENKAN, 81 KEY_KPJPCOMMA, NONE, NONE, NONE, 82 KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA, 83 KEY_ZENKAKUHANKAKU, NONE, NONE, NONE, 84 NONE, NONE, NONE, NONE, 85 NONE, NONE, NONE, NONE, 86 /* 0xa0 - 0xbf */ 87 NONE, NONE, NONE, NONE, 88 NONE, NONE, NONE, NONE, 89 NONE, NONE, NONE, NONE, 90 NONE, NONE, NONE, NONE, 91 NONE, NONE, NONE, NONE, 92 NONE, NONE, NONE, NONE, 93 NONE, NONE, NONE, NONE, 94 NONE, NONE, NONE, NONE, 95 /* 0xc0 - 0xdf */ 96 NONE, NONE, NONE, NONE, 97 NONE, NONE, NONE, NONE, 98 NONE, NONE, NONE, NONE, 99 NONE, NONE, NONE, NONE, 100 NONE, NONE, NONE, NONE, 101 NONE, NONE, NONE, NONE, 102 NONE, NONE, NONE, NONE, 103 NONE, NONE, NONE, NONE, 104 /* 0xe0 - 0xff */ 105 KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT, KEY_LEFTMETA, 106 KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT, KEY_RIGHTMETA, 107 KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG,KEY_NEXTSONG, 108 KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, 109 KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, 110 KEY_FIND, KEY_SCROLLUP, KEY_SCROLLDOWN, KEY_EDIT, 111 KEY_SLEEP, KEY_COFFEE, KEY_REFRESH, KEY_CALC, 112 NONE, NONE, NONE, NONE, 113 114 }; 115 116 static uint16_t evdev_at_set1_scancodes[] = { 117 /* 0x00 - 0x1f */ 118 NONE, KEY_ESC, KEY_1, KEY_2, 119 KEY_3, KEY_4, KEY_5, KEY_6, 120 KEY_7, KEY_8, KEY_9, KEY_0, 121 KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_TAB, 122 KEY_Q, KEY_W, KEY_E, KEY_R, 123 KEY_T, KEY_Y, KEY_U, KEY_I, 124 KEY_O, KEY_P, KEY_LEFTBRACE, KEY_RIGHTBRACE, 125 KEY_ENTER, KEY_LEFTCTRL, KEY_A, KEY_S, 126 /* 0x20 - 0x3f */ 127 KEY_D, KEY_F, KEY_G, KEY_H, 128 KEY_J, KEY_K, KEY_L, KEY_SEMICOLON, 129 KEY_APOSTROPHE, KEY_GRAVE, KEY_LEFTSHIFT, KEY_BACKSLASH, 130 KEY_Z, KEY_X, KEY_C, KEY_V, 131 KEY_B, KEY_N, KEY_M, KEY_COMMA, 132 KEY_DOT, KEY_SLASH, KEY_RIGHTSHIFT, KEY_KPASTERISK, 133 KEY_LEFTALT, KEY_SPACE, KEY_CAPSLOCK, KEY_F1, 134 KEY_F2, KEY_F3, KEY_F4, KEY_F5, 135 /* 0x40 - 0x5f */ 136 KEY_F6, KEY_F7, KEY_F8, KEY_F9, 137 KEY_F10, KEY_NUMLOCK, KEY_SCROLLLOCK, KEY_KP7, 138 KEY_KP8, KEY_KP9, KEY_KPMINUS, KEY_KP4, 139 KEY_KP5, KEY_KP6, KEY_KPPLUS, KEY_KP1, 140 KEY_KP2, KEY_KP3, KEY_KP0, KEY_KPDOT, 141 NONE, NONE, KEY_102ND, KEY_F11, 142 KEY_F12, NONE, NONE, NONE, 143 NONE, KEY_F13, NONE, NONE, 144 /* 0x60 - 0x7f */ 145 NONE, NONE, NONE, NONE, 146 NONE, NONE, NONE, NONE, 147 NONE, NONE, NONE, NONE, 148 NONE, NONE, NONE, NONE, 149 KEY_KATAKANAHIRAGANA, KEY_HANGEUL, KEY_HANJA, KEY_RO, 150 NONE, NONE, KEY_ZENKAKUHANKAKU, KEY_HIRAGANA, 151 KEY_KATAKANA, KEY_HENKAN, NONE, KEY_MUHENKAN, 152 NONE, KEY_YEN, KEY_KPCOMMA, NONE, 153 /* 0x00 - 0x1f. 0xE0 prefixed */ 154 NONE, NONE, NONE, NONE, 155 NONE, NONE, NONE, NONE, 156 NONE, NONE, NONE, NONE, 157 NONE, NONE, NONE, NONE, 158 KEY_PREVIOUSSONG, NONE, NONE, NONE, 159 NONE, NONE, NONE, NONE, 160 NONE, KEY_NEXTSONG, NONE, NONE, 161 KEY_KPENTER, KEY_RIGHTCTRL, NONE, NONE, 162 /* 0x20 - 0x3f. 0xE0 prefixed */ 163 KEY_MUTE, KEY_CALC, KEY_PLAYPAUSE, NONE, 164 KEY_STOPCD, NONE, NONE, NONE, 165 NONE, NONE, NONE, NONE, 166 NONE, NONE, KEY_VOLUMEDOWN, NONE, 167 KEY_VOLUMEUP, NONE, KEY_HOMEPAGE, NONE, 168 NONE, KEY_KPSLASH, NONE, KEY_SYSRQ, 169 KEY_RIGHTALT, NONE, NONE, KEY_F13, 170 KEY_F14, KEY_F15, KEY_F16, KEY_F17, 171 /* 0x40 - 0x5f. 0xE0 prefixed */ 172 KEY_F18, KEY_F19, KEY_F20, KEY_F21, 173 KEY_F22, NONE, KEY_PAUSE, KEY_HOME, 174 KEY_UP, KEY_PAGEUP, NONE, KEY_LEFT, 175 NONE, KEY_RIGHT, NONE, KEY_END, 176 KEY_DOWN, KEY_PAGEDOWN, KEY_INSERT, KEY_DELETE, 177 NONE, NONE, NONE, KEY_F23, 178 KEY_F24, NONE, NONE, KEY_LEFTMETA, 179 KEY_RIGHTMETA, KEY_MENU, KEY_POWER, KEY_SLEEP, 180 /* 0x60 - 0x7f. 0xE0 prefixed */ 181 NONE, NONE, NONE, KEY_WAKEUP, 182 NONE, KEY_SEARCH, KEY_BOOKMARKS, KEY_REFRESH, 183 KEY_STOP, KEY_FORWARD, KEY_BACK, KEY_COMPUTER, 184 KEY_MAIL, KEY_MEDIA, NONE, NONE, 185 NONE, NONE, NONE, NONE, 186 NONE, NONE, NONE, NONE, 187 NONE, NONE, NONE, NONE, 188 NONE, NONE, NONE, NONE, 189 }; 190 191 static uint16_t evdev_mouse_button_codes[] = { 192 BTN_LEFT, 193 BTN_MIDDLE, 194 BTN_RIGHT, 195 BTN_SIDE, 196 BTN_EXTRA, 197 BTN_FORWARD, 198 BTN_BACK, 199 BTN_TASK, 200 }; 201 202 static uint16_t evdev_led_codes[] = { 203 LED_CAPSL, /* CLKED */ 204 LED_NUML, /* NLKED */ 205 LED_SCROLLL, /* SLKED */ 206 }; 207 208 uint16_t 209 evdev_hid2key(int scancode) 210 { 211 return evdev_usb_scancodes[scancode]; 212 } 213 214 void 215 evdev_support_all_known_keys(struct evdev_dev *evdev) 216 { 217 size_t i; 218 219 for (i = KEY_RESERVED; i < nitems(evdev_at_set1_scancodes); i++) 220 if (evdev_at_set1_scancodes[i] != NONE) 221 evdev_support_key(evdev, evdev_at_set1_scancodes[i]); 222 } 223 224 uint16_t 225 evdev_scancode2key(int *state, int scancode) 226 { 227 uint16_t keycode; 228 229 /* translate the scan code into a keycode */ 230 keycode = evdev_at_set1_scancodes[scancode & 0x7f]; 231 switch (*state) { 232 case 0x00: /* normal scancode */ 233 switch(scancode) { 234 case 0xE0: 235 case 0xE1: 236 *state = scancode; 237 return (NONE); 238 } 239 break; 240 case 0xE0: /* 0xE0 prefix */ 241 *state = 0; 242 keycode = evdev_at_set1_scancodes[0x80 + (scancode & 0x7f)]; 243 break; 244 case 0xE1: /* 0xE1 prefix */ 245 /* 246 * The pause/break key on the 101 keyboard produces: 247 * E1-1D-45 E1-9D-C5 248 * Ctrl-pause/break produces: 249 * E0-46 E0-C6 (See above.) 250 */ 251 *state = 0; 252 if ((scancode & 0x7f) == 0x1D) 253 *state = scancode; 254 return (NONE); 255 /* NOT REACHED */ 256 case 0x1D: /* pause / break */ 257 case 0x9D: 258 if ((*state ^ scancode) & 0x80) 259 return (NONE); 260 *state = 0; 261 if ((scancode & 0x7f) != 0x45) 262 return (NONE); 263 keycode = KEY_PAUSE; 264 break; 265 } 266 267 return (keycode); 268 } 269 270 void 271 evdev_push_mouse_btn(struct evdev_dev *evdev, int buttons) 272 { 273 size_t i; 274 275 for (i = 0; i < nitems(evdev_mouse_button_codes); i++) 276 evdev_push_key(evdev, evdev_mouse_button_codes[i], 277 buttons & (1 << i)); 278 } 279 280 void 281 evdev_push_leds(struct evdev_dev *evdev, int leds) 282 { 283 size_t i; 284 285 /* Some drivers initialize leds before evdev */ 286 if (evdev == NULL) 287 return; 288 289 for (i = 0; i < nitems(evdev_led_codes); i++) 290 evdev_push_led(evdev, evdev_led_codes[i], leds & (1 << i)); 291 } 292 293 void 294 evdev_push_repeats(struct evdev_dev *evdev, keyboard_t *kbd) 295 { 296 /* Some drivers initialize typematics before evdev */ 297 if (evdev == NULL) 298 return; 299 300 evdev_push_event(evdev, EV_REP, REP_DELAY, kbd->kb_delay1); 301 evdev_push_event(evdev, EV_REP, REP_PERIOD, kbd->kb_delay2); 302 }
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