hidkbd.c revision 1.1
1 /* $OpenBSD: hidkbd.c,v 1.15 2024/10/21 19:05:31 miod Exp $ */ 2 /* $NetBSD: hidkbd.c,v 1.1 2024/12/09 22:04:18 jmcneill Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 36 */ 37 38 #include "opt_wsdisplay_compat.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/callout.h> 43 #include <sys/kernel.h> 44 #include <sys/device.h> 45 #include <sys/ioctl.h> 46 #include <sys/kmem.h> 47 48 #include <dev/wscons/wsconsio.h> 49 #include <dev/wscons/wskbdvar.h> 50 #include <dev/wscons/wsksymdef.h> 51 #include <dev/wscons/wsksymvar.h> 52 53 #include <dev/hid/hid.h> 54 #include <dev/hid/hidkbdsc.h> 55 56 #ifdef HIDKBD_DEBUG 57 #define DPRINTF(x) do { if (hidkbddebug) printf x; } while (0) 58 #define DPRINTFN(n,x) do { if (hidkbddebug>(n)) printf x; } while (0) 59 int hidkbddebug = 0; 60 #else 61 #define DPRINTF(x) 62 #define DPRINTFN(n,x) 63 #endif 64 65 #define PRESS 0x000 66 #define RELEASE 0x100 67 #define CODEMASK 0x0ff 68 69 #if defined(WSDISPLAY_COMPAT_RAWKBD) 70 #define NN 0 /* no translation */ 71 /* 72 * Translate USB keycodes to US keyboard XT scancodes. 73 * Scancodes >= 0x80 represent EXTENDED keycodes. 74 * 75 * See http://www.microsoft.com/whdc/archive/Scancode.mspx 76 */ 77 const u_int8_t hidkbd_trtab[256] = { 78 NN, NN, NN, NN, 0x1e, 0x30, 0x2e, 0x20, /* 00 - 07 */ 79 0x12, 0x21, 0x22, 0x23, 0x17, 0x24, 0x25, 0x26, /* 08 - 0f */ 80 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1f, 0x14, /* 10 - 17 */ 81 0x16, 0x2f, 0x11, 0x2d, 0x15, 0x2c, 0x02, 0x03, /* 18 - 1f */ 82 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, /* 20 - 27 */ 83 0x1c, 0x01, 0x0e, 0x0f, 0x39, 0x0c, 0x0d, 0x1a, /* 28 - 2f */ 84 0x1b, 0x2b, 0x2b, 0x27, 0x28, 0x29, 0x33, 0x34, /* 30 - 37 */ 85 0x35, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, /* 38 - 3f */ 86 0x41, 0x42, 0x43, 0x44, 0x57, 0x58, 0xb7, 0x46, /* 40 - 47 */ 87 0x7f, 0xd2, 0xc7, 0xc9, 0xd3, 0xcf, 0xd1, 0xcd, /* 48 - 4f */ 88 0xcb, 0xd0, 0xc8, 0x45, 0xb5, 0x37, 0x4a, 0x4e, /* 50 - 57 */ 89 0x9c, 0x4f, 0x50, 0x51, 0x4b, 0x4c, 0x4d, 0x47, /* 58 - 5f */ 90 0x48, 0x49, 0x52, 0x53, 0x56, 0xdd, 0xde, 0x59, /* 60 - 67 */ 91 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, /* 68 - 6f */ 92 0x6c, 0x6d, 0x6e, 0x76, 0x97, NN, 0x93, 0x95, /* 70 - 77 */ 93 0x91, 0x92, 0x94, 0x9a, 0x96, 0x98, 0x99, 0xa0, /* 78 - 7f */ 94 0xb0, 0xae, NN, NN, NN, 0x7e, NN, 0x73, /* 80 - 87 */ 95 0x70, 0x7d, 0x79, 0x7b, 0x5c, NN, NN, NN, /* 88 - 8f */ 96 NN, NN, 0x78, 0x77, 0x76, NN, NN, NN, /* 90 - 97 */ 97 NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9f */ 98 NN, NN, NN, NN, NN, NN, NN, NN, /* a0 - a7 */ 99 NN, NN, NN, NN, NN, NN, NN, NN, /* a8 - af */ 100 NN, NN, NN, NN, NN, NN, NN, NN, /* b0 - b7 */ 101 NN, NN, NN, NN, NN, NN, NN, NN, /* b8 - bf */ 102 NN, NN, NN, NN, NN, NN, NN, NN, /* c0 - c7 */ 103 NN, NN, NN, NN, NN, NN, NN, NN, /* c8 - cf */ 104 NN, NN, NN, NN, NN, NN, NN, NN, /* d0 - d7 */ 105 NN, NN, NN, NN, NN, NN, NN, NN, /* d8 - df */ 106 0x1d, 0x2a, 0x38, 0xdb, 0x9d, 0x36, 0xb8, 0xdc, /* e0 - e7 */ 107 NN, NN, NN, NN, NN, NN, NN, NN, /* e8 - ef */ 108 NN, NN, NN, NN, NN, NN, NN, NN, /* f0 - f7 */ 109 NN, NN, NN, NN, NN, NN, NN, NN, /* f8 - ff */ 110 }; 111 #endif /* defined(WSDISPLAY_COMPAT_RAWKBD) */ 112 113 #if 0 114 static const struct hidkbd_translation apple_tb_trans[] = { 115 { 30, 58 }, /* 1 -> F1 */ 116 { 31, 59 }, /* 2 -> F2 */ 117 { 32, 60 }, /* 3 -> F3 */ 118 { 33, 61 }, /* 4 -> F4 */ 119 { 34, 62 }, /* 5 -> F5 */ 120 { 35, 63 }, /* 6 -> F6 */ 121 { 36, 64 }, /* 7 -> F7 */ 122 { 37, 65 }, /* 8 -> F8 */ 123 { 38, 66 }, /* 9 -> F9 */ 124 { 39, 67 }, /* 0 -> F10 */ 125 { 45, 68 }, /* - -> F11 */ 126 { 46, 69 } /* = -> F12 */ 127 }; 128 129 static const struct hidkbd_translation apple_fn_trans[] = { 130 { 40, 73 }, /* return -> insert */ 131 { 42, 76 }, /* backspace -> delete */ 132 { 58, 233 }, /* F1 -> screen brightness down */ 133 { 59, 232 }, /* F2 -> screen brightness up */ 134 #ifdef notyet 135 { 60, 0 }, /* F3 */ 136 { 61, 0 }, /* F4 */ 137 { 62, 0 }, /* F5 -> keyboard backlight down */ 138 { 63, 0 }, /* F6 -> keyboard backlight up */ 139 { 64, 0 }, /* F7 -> audio back */ 140 { 65, 0 }, /* F8 -> audio pause/play */ 141 { 66, 0 }, /* F9 -> audio next */ 142 #endif 143 #ifdef __macppc__ 144 { 60, 127 }, /* F3 -> audio mute */ 145 { 61, 129 }, /* F4 -> audio lower */ 146 { 62, 128 }, /* F5 -> audio raise */ 147 { 63, 83 }, /* F6 -> num lock */ 148 { 65, 234 }, /* F8 -> backlight toggle */ 149 { 66, 236 }, /* F9 -> backlight lower */ 150 { 67, 235 }, /* F10 -> backlight raise */ 151 { 39, 84 }, /* keypad divide */ 152 { 19, 85 }, /* keypad multiply */ 153 { 51, 86 }, /* keypad subtract */ 154 { 56, 87 }, /* keypad add */ 155 { 13, 89 }, /* keypad 1 */ 156 { 14, 90 }, /* keypad 2 */ 157 { 15, 91 }, /* keypad 3 */ 158 { 24, 92 }, /* keypad 4 */ 159 { 12, 93 }, /* keypad 5 */ 160 { 18, 94 }, /* keypad 6 */ 161 { 36, 95 }, /* keypad 7 */ 162 { 37, 96 }, /* keypad 8 */ 163 { 38, 97 }, /* keypad 9 */ 164 { 16, 98 }, /* keypad 0 */ 165 { 55, 99 }, /* keypad decimal */ 166 { 45, 103 }, /* keypad equal */ 167 #else 168 { 63, 102 }, /* F6 -> sleep */ 169 { 67, 127 }, /* F10 -> audio mute */ 170 { 68, 129 }, /* F11 -> audio lower */ 171 { 69, 128 }, /* F12 -> audio raise */ 172 #endif 173 { 79, 77 }, /* right -> end */ 174 { 80, 74 }, /* left -> home */ 175 { 81, 78 }, /* down -> page down */ 176 { 82, 75 } /* up -> page up */ 177 }; 178 179 static const struct hidkbd_translation apple_mba_trans[] = { 180 { 40, 73 }, /* return -> insert */ 181 { 42, 76 }, /* backspace -> delete */ 182 #ifdef notyet 183 { 58, 0 }, /* F1 -> screen brightness down */ 184 { 59, 0 }, /* F2 -> screen brightness up */ 185 { 60, 0 }, /* F3 */ 186 { 61, 0 }, /* F4 */ 187 { 62, 0 }, /* F5 */ 188 { 63, 0 }, /* F6 -> audio back */ 189 { 64, 0 }, /* F7 -> audio pause/play */ 190 { 65, 0 }, /* F8 -> audio next */ 191 #endif 192 { 66, 127 }, /* F9 -> audio mute */ 193 { 67, 129 }, /* F10 -> audio lower */ 194 { 68, 128 }, /* F11 -> audio raise */ 195 #ifdef notyet 196 { 69, 0 }, /* F12 -> eject */ 197 #endif 198 { 79, 77 }, /* right -> end */ 199 { 80, 74 }, /* left -> home */ 200 { 81, 78 }, /* down -> page down */ 201 { 82, 75 } /* up -> page up */ 202 }; 203 204 static const struct hidkbd_translation apple_iso_trans[] = { 205 { 53, 100 }, /* less -> grave */ 206 { 100, 53 } 207 }; 208 #endif 209 210 #define KEY_ERROR 0x01 211 212 #ifdef HIDKBD_DEBUG 213 #define HIDKBDTRACESIZE 64 214 struct hidkbdtraceinfo { 215 int unit; 216 struct timeval tv; 217 struct hidkbd_data ud; 218 }; 219 struct hidkbdtraceinfo hidkbdtracedata[HIDKBDTRACESIZE]; 220 int hidkbdtraceindex = 0; 221 int hidkbdtrace = 0; 222 void hidkbdtracedump(void); 223 void 224 hidkbdtracedump(void) 225 { 226 int i; 227 for (i = 0; i < HIDKBDTRACESIZE; i++) { 228 struct hidkbdtraceinfo *p = 229 &hidkbdtracedata[(i+hidkbdtraceindex)%HIDKBDTRACESIZE]; 230 printf("%lld.%06ld: key0=0x%02x key1=0x%02x " 231 "key2=0x%02x key3=0x%02x\n", 232 (long long)p->tv.tv_sec, p->tv.tv_usec, 233 p->ud.keycode[0], p->ud.keycode[1], 234 p->ud.keycode[2], p->ud.keycode[3]); 235 } 236 } 237 #endif 238 239 int hidkbd_is_console = 0; 240 241 const char *hidkbd_parse_desc(struct hidkbd *, int, void *, int); 242 243 void hidkbd_decode(struct hidkbd *, struct hidkbd_data *); 244 void hidkbd_delayed_decode(void *addr); 245 246 extern const struct wscons_keydesc hidkbd_keydesctab[]; 247 248 struct wskbd_mapdata hidkbd_keymapdata = { 249 hidkbd_keydesctab 250 }; 251 252 int 253 hidkbd_attach(device_t self, struct hidkbd *kbd, int console, 254 uint32_t qflags, int id, void *desc, int dlen) 255 { 256 const char *parserr; 257 258 kbd->sc_var = NULL; 259 260 parserr = hidkbd_parse_desc(kbd, id, desc, dlen); 261 if (parserr != NULL) { 262 printf(": %s\n", parserr); 263 return ENXIO; 264 } 265 266 #ifdef DIAGNOSTIC 267 printf(": %d variable keys, %d key codes", 268 kbd->sc_nvar, kbd->sc_nkeycode); 269 #endif 270 271 kbd->sc_device = self; 272 kbd->sc_debounce = (qflags & HIDKBD_SPUR_BUT_UP) != 0; 273 274 /* 275 * Remember if we're the console keyboard. 276 * 277 * XXX This always picks the first (USB) keyboard to attach, 278 * but what else can we really do? 279 */ 280 if (console) { 281 kbd->sc_console_keyboard = hidkbd_is_console; 282 /* Don't let any other keyboard have it. */ 283 hidkbd_is_console = 0; 284 } 285 286 callout_init(&kbd->sc_delay, 0); 287 callout_setfunc(&kbd->sc_delay, hidkbd_delayed_decode, kbd); 288 289 return 0; 290 } 291 292 void 293 hidkbd_attach_wskbd(struct hidkbd *kbd, kbd_t layout, 294 const struct wskbd_accessops *accessops) 295 { 296 struct wskbddev_attach_args a; 297 298 hidkbd_keymapdata.layout = layout; 299 300 a.console = kbd->sc_console_keyboard; 301 a.keymap = &hidkbd_keymapdata; 302 a.accessops = accessops; 303 a.accesscookie = device_private(kbd->sc_device); 304 kbd->sc_wskbddev = config_found(kbd->sc_device, &a, 305 wskbddevprint, CFARGS_NONE); 306 } 307 308 int 309 hidkbd_detach(struct hidkbd *kbd, int flags) 310 { 311 int rv = 0; 312 313 DPRINTF(("hidkbd_detach: sc=%p flags=%d\n", device_private(kbd->sc_device), flags)); 314 315 if (kbd->sc_console_keyboard) { 316 /* 317 * Disconnect our consops and set hidkbd_is_console 318 * back to 1 so that the next USB keyboard attached 319 * to the system will get it. 320 * XXX Should notify some other keyboard that it can be 321 * XXX console, if there are any other keyboards. 322 */ 323 device_printf(kbd->sc_device, "was console keyboard\n"); 324 hidkbd_is_console = 1; 325 } 326 /* No need to do reference counting of hidkbd, wskbd has all the goo */ 327 if (kbd->sc_wskbddev != NULL) 328 rv = config_detach(kbd->sc_wskbddev, flags); 329 330 if (kbd->sc_var != NULL) 331 kmem_free(kbd->sc_var, 332 kbd->sc_nvar * sizeof(struct hidkbd_variable)); 333 334 return (rv); 335 } 336 337 uint8_t 338 hidkbd_translate(const struct hidkbd_translation *table, size_t tsize, 339 uint8_t keycode) 340 { 341 for (; tsize != 0; table++, tsize--) 342 if (table->original == keycode) 343 return table->translation; 344 return 0; 345 } 346 347 #if 0 348 void 349 hidkbd_apple_translate(void *vsc, uint8_t *ibuf, u_int ilen, 350 const struct hidkbd_translation* trans, u_int tlen) 351 { 352 struct hidkbd *kbd = vsc; 353 uint8_t *pos, *spos, *epos, xlat; 354 355 spos = ibuf + kbd->sc_keycodeloc.pos / 8; 356 epos = spos + kbd->sc_nkeycode; 357 358 for (pos = spos; pos != epos; pos++) { 359 xlat = hidkbd_translate(trans, tlen, *pos); 360 if (xlat != 0) 361 *pos = xlat; 362 } 363 } 364 365 void 366 hidkbd_apple_munge(void *vsc, uint8_t *ibuf, u_int ilen) 367 { 368 struct hidkbd *kbd = vsc; 369 370 if (!hid_get_data(ibuf, ilen, &kbd->sc_fn)) 371 return; 372 373 hidkbd_apple_translate(vsc, ibuf, ilen, apple_fn_trans, 374 nitems(apple_fn_trans)); 375 } 376 377 void 378 hidkbd_apple_tb_munge(void *vsc, uint8_t *ibuf, u_int ilen) 379 { 380 struct hidkbd *kbd = vsc; 381 382 if (!hid_get_data(ibuf, ilen, &kbd->sc_fn)) 383 return; 384 385 hidkbd_apple_munge(vsc, ibuf, ilen); 386 387 hidkbd_apple_translate(vsc, ibuf, ilen, apple_tb_trans, 388 nitems(apple_tb_trans)); 389 } 390 391 void 392 hidkbd_apple_iso_munge(void *vsc, uint8_t *ibuf, u_int ilen) 393 { 394 hidkbd_apple_translate(vsc, ibuf, ilen, apple_iso_trans, 395 nitems(apple_iso_trans)); 396 hidkbd_apple_munge(vsc, ibuf, ilen); 397 } 398 399 void 400 hidkbd_apple_mba_munge(void *vsc, uint8_t *ibuf, u_int ilen) 401 { 402 struct hidkbd *kbd = vsc; 403 404 if (!hid_get_data(ibuf, ilen, &kbd->sc_fn)) 405 return; 406 407 hidkbd_apple_translate(vsc, ibuf, ilen, apple_mba_trans, 408 nitems(apple_mba_trans)); 409 } 410 411 void 412 hidkbd_apple_iso_mba_munge(void *vsc, uint8_t *ibuf, u_int ilen) 413 { 414 hidkbd_apple_translate(vsc, ibuf, ilen, apple_iso_trans, 415 nitems(apple_iso_trans)); 416 hidkbd_apple_mba_munge(vsc, ibuf, ilen); 417 } 418 #endif 419 420 void 421 hidkbd_input(struct hidkbd *kbd, uint8_t *data, u_int len) 422 { 423 struct hidkbd_data *ud = &kbd->sc_ndata; 424 int i; 425 426 if (kbd->sc_munge != NULL) 427 (*kbd->sc_munge)(kbd, (uint8_t *)data, len); 428 429 #ifdef HIDKBD_DEBUG 430 if (hidkbddebug > 5) { 431 printf("hidkbd_input: data"); 432 for (i = 0; i < len; i++) 433 printf(" 0x%02x", data[i]); 434 printf("\n"); 435 } 436 #endif 437 438 /* extract variable keys */ 439 for (i = 0; i < kbd->sc_nvar; i++) 440 #ifdef __OpenBSD__ 441 ud->var[i] = (u_int8_t)hid_get_data(data, len, 442 &kbd->sc_var[i].loc); 443 #else 444 ud->var[i] = (u_int8_t)hid_get_data(data, 445 &kbd->sc_var[i].loc); 446 #endif 447 448 /* extract keycodes */ 449 if (kbd->sc_keycodeloc.pos / 8 + kbd->sc_nkeycode <= len) 450 memcpy(ud->keycode, data + kbd->sc_keycodeloc.pos / 8, 451 kbd->sc_nkeycode); 452 else 453 memset(ud->keycode, 0, kbd->sc_nkeycode); 454 455 if (kbd->sc_debounce && !kbd->sc_polling) { 456 /* 457 * Some keyboards have a peculiar quirk. They sometimes 458 * generate a key up followed by a key down for the same 459 * key after about 10 ms. 460 * We avoid this bug by holding off decoding for 20 ms. 461 */ 462 kbd->sc_data = *ud; 463 callout_schedule(&kbd->sc_delay, mstohz(20)); 464 } else { 465 hidkbd_decode(kbd, ud); 466 } 467 } 468 469 void 470 hidkbd_delayed_decode(void *addr) 471 { 472 struct hidkbd *kbd = addr; 473 474 hidkbd_decode(kbd, &kbd->sc_data); 475 } 476 477 void 478 hidkbd_decode(struct hidkbd *kbd, struct hidkbd_data *ud) 479 { 480 u_int16_t ibuf[MAXKEYS]; /* chars events */ 481 int s; 482 int nkeys, i, j; 483 int key; 484 #define ADDKEY(c) ibuf[nkeys++] = (c) 485 486 #ifdef HIDKBD_DEBUG 487 /* 488 * Keep a trace of the last events. Using printf changes the 489 * timing, so this can be useful sometimes. 490 */ 491 if (hidkbdtrace) { 492 struct hidkbdtraceinfo *p = &hidkbdtracedata[hidkbdtraceindex]; 493 p->unit = device_unit(kbd->sc_device); 494 microtime(&p->tv); 495 p->ud = *ud; 496 if (++hidkbdtraceindex >= HIDKBDTRACESIZE) 497 hidkbdtraceindex = 0; 498 } 499 if (hidkbddebug > 5) { 500 struct timeval tv; 501 microtime(&tv); 502 DPRINTF((" at %lld.%06ld key0=0x%02x key1=0x%02x " 503 "key2=0x%02x key3=0x%02x\n", 504 (long long)tv.tv_sec, tv.tv_usec, 505 ud->keycode[0], ud->keycode[1], 506 ud->keycode[2], ud->keycode[3])); 507 } 508 #endif 509 510 if (ud->keycode[0] == KEY_ERROR) { 511 DPRINTF(("hidkbd_input: KEY_ERROR\n")); 512 return; /* ignore */ 513 } 514 nkeys = 0; 515 516 for (i = 0; i < kbd->sc_nvar; i++) 517 if ((kbd->sc_odata.var[i] & kbd->sc_var[i].mask) != 518 (ud->var[i] & kbd->sc_var[i].mask)) { 519 ADDKEY(kbd->sc_var[i].key | 520 ((ud->var[i] & kbd->sc_var[i].mask) ? 521 PRESS : RELEASE)); 522 } 523 524 if (memcmp(ud->keycode, kbd->sc_odata.keycode, kbd->sc_nkeycode) != 0) { 525 /* Check for released keys. */ 526 for (i = 0; i < kbd->sc_nkeycode; i++) { 527 key = kbd->sc_odata.keycode[i]; 528 if (key == 0) 529 continue; 530 for (j = 0; j < kbd->sc_nkeycode; j++) 531 if (key == ud->keycode[j]) 532 goto rfound; 533 DPRINTFN(3,("hidkbd_decode: relse key=0x%02x\n", key)); 534 ADDKEY(key | RELEASE); 535 rfound: 536 ; 537 } 538 539 /* Check for pressed keys. */ 540 for (i = 0; i < kbd->sc_nkeycode; i++) { 541 key = ud->keycode[i]; 542 if (key == 0) 543 continue; 544 for (j = 0; j < kbd->sc_nkeycode; j++) 545 if (key == kbd->sc_odata.keycode[j]) 546 goto pfound; 547 DPRINTFN(2,("hidkbd_decode: press key=0x%02x\n", key)); 548 ADDKEY(key | PRESS); 549 pfound: 550 ; 551 } 552 } 553 kbd->sc_odata = *ud; 554 555 if (nkeys == 0) 556 return; 557 558 if (kbd->sc_polling) { 559 DPRINTFN(1,("hidkbd_decode: pollchar = 0x%03x\n", ibuf[0])); 560 memcpy(kbd->sc_pollchars, ibuf, nkeys * sizeof(u_int16_t)); 561 kbd->sc_npollchar = nkeys; 562 return; 563 } 564 565 if (kbd->sc_wskbddev == NULL) 566 return; 567 568 #ifdef WSDISPLAY_COMPAT_RAWKBD 569 if (kbd->sc_rawkbd) { 570 u_char cbuf[MAXKEYS * 2]; 571 int c; 572 573 for (i = j = 0; i < nkeys; i++) { 574 key = ibuf[i]; 575 c = hidkbd_trtab[key & CODEMASK]; 576 if (c == NN) 577 continue; 578 if (c & 0x80) 579 cbuf[j++] = 0xe0; 580 cbuf[j] = c & 0x7f; 581 if (key & RELEASE) 582 cbuf[j] |= 0x80; 583 DPRINTFN(1,("hidkbd_decode: raw = %s0x%02x\n", 584 c & 0x80 ? "0xe0 " : "", 585 cbuf[j])); 586 j++; 587 } 588 s = spltty(); 589 wskbd_rawinput(kbd->sc_wskbddev, cbuf, j); 590 591 /* 592 * Pass audio, brightness and sleep keys to wskbd_input anyway. 593 */ 594 for (i = 0; i < nkeys; i++) { 595 key = ibuf[i]; 596 switch (key & CODEMASK) { 597 case 102: 598 case 127: 599 case 128: 600 case 129: 601 case 232: 602 case 233: 603 case 234: 604 case 235: 605 case 236: 606 wskbd_input(kbd->sc_wskbddev, 607 key & RELEASE ? WSCONS_EVENT_KEY_UP : 608 WSCONS_EVENT_KEY_DOWN, key & CODEMASK); 609 break; 610 } 611 } 612 splx(s); 613 614 return; 615 } 616 #endif 617 618 s = spltty(); 619 for (i = 0; i < nkeys; i++) { 620 key = ibuf[i]; 621 wskbd_input(kbd->sc_wskbddev, 622 key&RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN, 623 key&CODEMASK); 624 } 625 splx(s); 626 #undef ADDKEY 627 } 628 629 int 630 hidkbd_enable(struct hidkbd *kbd, int on) 631 { 632 if (kbd->sc_enabled == on) 633 return EBUSY; 634 635 kbd->sc_enabled = on; 636 return 0; 637 } 638 639 int 640 hidkbd_set_leds(struct hidkbd *kbd, int leds, uint8_t *report) 641 { 642 if (kbd->sc_leds == leds) 643 return 0; 644 645 kbd->sc_leds = leds; 646 647 /* 648 * This is not totally correct, since we did not check the 649 * report size from the descriptor but for keyboards it should 650 * just be a single byte with the relevant bits set. 651 */ 652 *report = 0; 653 if ((leds & WSKBD_LED_SCROLL) && kbd->sc_scroloc.size == 1) 654 *report |= 1 << kbd->sc_scroloc.pos; 655 if ((leds & WSKBD_LED_NUM) && kbd->sc_numloc.size == 1) 656 *report |= 1 << kbd->sc_numloc.pos; 657 if ((leds & WSKBD_LED_CAPS) && kbd->sc_capsloc.size == 1) 658 *report |= 1 << kbd->sc_capsloc.pos; 659 if ((leds & WSKBD_LED_COMPOSE) && kbd->sc_compose.size == 1) 660 *report |= 1 << kbd->sc_compose.pos; 661 662 return 1; 663 } 664 665 int 666 hidkbd_ioctl(struct hidkbd *kbd, u_long cmd, void *data, int flag, 667 lwp_t *l) 668 { 669 switch (cmd) { 670 case WSKBDIO_GETLEDS: 671 *(int *)data = kbd->sc_leds; 672 return (0); 673 #ifdef WSDISPLAY_COMPAT_RAWKBD 674 case WSKBDIO_SETMODE: 675 DPRINTF(("hidkbd_ioctl: set raw = %d\n", *(int *)data)); 676 kbd->sc_rawkbd = *(int *)data == WSKBD_RAW; 677 return (0); 678 #endif 679 } 680 681 return (EPASSTHROUGH); 682 } 683 684 void 685 hidkbd_cngetc(struct hidkbd *kbd, u_int *type, int *data) 686 { 687 int c; 688 689 c = kbd->sc_pollchars[0]; 690 kbd->sc_npollchar--; 691 memmove(kbd->sc_pollchars, kbd->sc_pollchars+1, 692 kbd->sc_npollchar * sizeof(u_int16_t)); 693 *type = c & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN; 694 *data = c & CODEMASK; 695 } 696 697 const char * 698 hidkbd_parse_desc(struct hidkbd *kbd, int id, void *desc, int dlen) 699 { 700 struct hid_data *d; 701 struct hid_item h; 702 unsigned int i, ivar = 0; 703 704 kbd->sc_nkeycode = 0; 705 706 d = hid_start_parse(desc, dlen, hid_input); 707 while (hid_get_item(d, &h)) { 708 if (h.kind != hid_input || (h.flags & HIO_CONST) || 709 HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD || 710 h.report_ID != id) 711 continue; 712 if (h.flags & HIO_VARIABLE) 713 ivar++; 714 } 715 hid_end_parse(d); 716 717 if (ivar > MAXVARS) { 718 DPRINTF((": too many variable keys\n")); 719 ivar = MAXVARS; 720 } 721 722 kbd->sc_nvar = ivar; 723 kbd->sc_var = kmem_zalloc( 724 kbd->sc_nvar * sizeof(struct hidkbd_variable), 725 KM_SLEEP); 726 727 i = 0; 728 729 d = hid_start_parse(desc, dlen, hid_input); 730 while (hid_get_item(d, &h)) { 731 if (h.kind != hid_input || (h.flags & HIO_CONST) || 732 HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD || 733 h.report_ID != id) 734 continue; 735 736 DPRINTF(("hidkbd: usage=0x%x flags=0x%x pos=%d size=%d cnt=%d", 737 h.usage, h.flags, h.loc.pos, h.loc.size, h.loc.count)); 738 if (h.flags & HIO_VARIABLE) { 739 /* variable reports should be one bit each */ 740 if (h.loc.size != 1) { 741 DPRINTF((": bad variable size\n")); 742 continue; 743 } 744 745 /* variable report */ 746 if (i < MAXVARS) { 747 kbd->sc_var[i].loc = h.loc; 748 kbd->sc_var[i].mask = 1 << (i % 8); 749 kbd->sc_var[i].key = HID_GET_USAGE(h.usage); 750 i++; 751 } 752 } else { 753 /* keys array should be in bytes, on a byte boundary */ 754 if (h.loc.size != 8) { 755 DPRINTF((": key code size != 8\n")); 756 continue; 757 } 758 if (h.loc.pos % 8 != 0) { 759 DPRINTF((": array not on byte boundary")); 760 continue; 761 } 762 if (kbd->sc_nkeycode != 0) { 763 DPRINTF((": ignoring multiple arrays\n")); 764 continue; 765 } 766 kbd->sc_keycodeloc = h.loc; 767 if (h.loc.count > MAXKEYCODE) { 768 DPRINTF((": ignoring extra key codes")); 769 kbd->sc_nkeycode = MAXKEYCODE; 770 } else 771 kbd->sc_nkeycode = h.loc.count; 772 } 773 DPRINTF(("\n")); 774 } 775 hid_end_parse(d); 776 777 /* don't attach if no keys... */ 778 if (kbd->sc_nkeycode == 0 && ivar == 0) 779 return "no usable key codes array"; 780 781 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_NUM_LOCK), 782 id, hid_output, &kbd->sc_numloc, NULL); 783 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_CAPS_LOCK), 784 id, hid_output, &kbd->sc_capsloc, NULL); 785 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_SCROLL_LOCK), 786 id, hid_output, &kbd->sc_scroloc, NULL); 787 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_COMPOSE), 788 id, hid_output, &kbd->sc_compose, NULL); 789 790 return (NULL); 791 } 792
Indexes created Fri Sep 26 20:09:58 GMT 2025