btkbd.c revision 1.6
1 /* $NetBSD: btkbd.c,v 1.6 2007/03/04 06:01:45 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Iain Hibbert for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * 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 ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * 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 * based on dev/usb/ukbd.c 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: btkbd.c,v 1.6 2007/03/04 06:01:45 christos Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/callout.h> 43 #include <sys/conf.h> 44 #include <sys/device.h> 45 #include <sys/kernel.h> 46 #include <sys/proc.h> 47 #include <sys/systm.h> 48 49 #include <netbt/bluetooth.h> 50 51 #include <dev/bluetooth/bthid.h> 52 #include <dev/bluetooth/bthidev.h> 53 54 #include <dev/usb/hid.h> 55 #include <dev/usb/usb.h> 56 #include <dev/usb/usbhid.h> 57 58 #include <dev/wscons/wsconsio.h> 59 #include <dev/wscons/wskbdvar.h> 60 #include <dev/wscons/wsksymdef.h> 61 #include <dev/wscons/wsksymvar.h> 62 63 #include "opt_wsdisplay_compat.h" 64 #include "opt_btkbd.h" 65 66 #define MAXKEYCODE 6 67 #define MAXMOD 8 /* max 32 */ 68 #define MAXKEYS (MAXMOD + (2 * MAXKEYCODE)) 69 70 struct btkbd_data { 71 uint32_t modifiers; 72 uint8_t keycode[MAXKEYCODE]; 73 }; 74 75 struct btkbd_mod { 76 uint32_t mask; 77 uint8_t key; 78 }; 79 80 struct btkbd_softc { 81 struct bthidev sc_hidev; /* device+ */ 82 struct device *sc_wskbd; /* child */ 83 int sc_enabled; 84 85 int (*sc_output) /* output method */ 86 (struct bthidev *, uint8_t *, int); 87 88 /* stored data */ 89 struct btkbd_data sc_odata; 90 struct btkbd_data sc_ndata; 91 92 /* input reports */ 93 int sc_nmod; 94 struct hid_location sc_modloc[MAXMOD]; 95 struct btkbd_mod sc_mods[MAXMOD]; 96 97 int sc_nkeycode; 98 struct hid_location sc_keycodeloc; 99 100 /* output reports */ 101 struct hid_location sc_numloc; 102 struct hid_location sc_capsloc; 103 struct hid_location sc_scroloc; 104 int sc_leds; 105 106 #ifdef WSDISPLAY_COMPAT_RAWKBD 107 int sc_rawkbd; 108 #ifdef BTKBD_REPEAT 109 struct callout sc_repeat; 110 int sc_nrep; 111 char sc_rep[MAXKEYS]; 112 #endif 113 #endif 114 }; 115 116 /* autoconf(9) methods */ 117 static int btkbd_match(struct device *, struct cfdata *, void *); 118 static void btkbd_attach(struct device *, struct device *, void *); 119 static int btkbd_detach(struct device *, int); 120 121 CFATTACH_DECL(btkbd, sizeof(struct btkbd_softc), 122 btkbd_match, btkbd_attach, btkbd_detach, NULL); 123 124 /* wskbd(4) accessops */ 125 static int btkbd_enable(void *, int); 126 static void btkbd_set_leds(void *, int); 127 static int btkbd_ioctl(void *, unsigned long, void *, int, struct lwp *); 128 129 static const struct wskbd_accessops btkbd_accessops = { 130 btkbd_enable, 131 btkbd_set_leds, 132 btkbd_ioctl 133 }; 134 135 /* wskbd(4) keymap data */ 136 extern const struct wscons_keydesc ukbd_keydesctab[]; 137 138 const struct wskbd_mapdata btkbd_keymapdata = { 139 ukbd_keydesctab, 140 #if defined(BTKBD_LAYOUT) 141 BTKBD_LAYOUT, 142 #elif defined(PCKBD_LAYOUT) 143 PCKBD_LAYOUT, 144 #else 145 KB_US, 146 #endif 147 }; 148 149 /* bthid methods */ 150 static void btkbd_input(struct bthidev *, uint8_t *, int); 151 152 /* internal prototypes */ 153 static const char *btkbd_parse_desc(struct btkbd_softc *, int, const void *, int); 154 155 #ifdef WSDISPLAY_COMPAT_RAWKBD 156 #ifdef BTKBD_REPEAT 157 static void btkbd_repeat(void *); 158 #endif 159 #endif 160 161 /***************************************************************************** 162 * 163 * btkbd autoconf(9) routines 164 */ 165 166 static int 167 btkbd_match(struct device *self, struct cfdata *cfdata, 168 void *aux) 169 { 170 struct bthidev_attach_args *ba = aux; 171 172 if (hid_is_collection(ba->ba_desc, ba->ba_dlen, ba->ba_id, 173 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_KEYBOARD))) 174 return 1; 175 176 return 0; 177 } 178 179 static void 180 btkbd_attach(struct device *parent, struct device *self, void *aux) 181 { 182 struct btkbd_softc *sc = (struct btkbd_softc *)self; 183 struct bthidev_attach_args *ba = aux; 184 struct wskbddev_attach_args wska; 185 const char *parserr; 186 187 sc->sc_output = ba->ba_output; 188 ba->ba_input = btkbd_input; 189 190 parserr = btkbd_parse_desc(sc, ba->ba_id, ba->ba_desc, ba->ba_dlen); 191 if (parserr != NULL) { 192 aprint_error("%s\n", parserr); 193 return; 194 } 195 196 aprint_normal("\n"); 197 198 #ifdef WSDISPLAY_COMPAT_RAWKBD 199 #ifdef BTKBD_REPEAT 200 callout_init(&sc->sc_repeat); 201 callout_setfunc(&sc->sc_repeat, btkbd_repeat, sc); 202 #endif 203 #endif 204 205 wska.console = 0; 206 wska.keymap = &btkbd_keymapdata; 207 wska.accessops = &btkbd_accessops; 208 wska.accesscookie = sc; 209 210 sc->sc_wskbd = config_found((struct device *)sc, &wska, wskbddevprint); 211 } 212 213 static int 214 btkbd_detach(struct device *self, int flags) 215 { 216 struct btkbd_softc *sc = (struct btkbd_softc *)self; 217 int err = 0; 218 219 #ifdef WSDISPLAY_COMPAT_RAWKBD 220 #ifdef BTKBD_REPEAT 221 callout_stop(&sc->sc_repeat); 222 KASSERT(!callout_invoking(&sc->sc_repeat)); 223 #endif 224 #endif 225 226 if (sc->sc_wskbd != NULL) { 227 err = config_detach(sc->sc_wskbd, flags); 228 sc->sc_wskbd = NULL; 229 } 230 231 return err; 232 } 233 234 static const char * 235 btkbd_parse_desc(struct btkbd_softc *sc, int id, const void *desc, int dlen) 236 { 237 struct hid_data *d; 238 struct hid_item h; 239 int imod; 240 241 imod = 0; 242 sc->sc_nkeycode = 0; 243 d = hid_start_parse(desc, dlen, hid_input); 244 while (hid_get_item(d, &h)) { 245 if (h.kind != hid_input || (h.flags & HIO_CONST) || 246 HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD || 247 h.report_ID != id) 248 continue; 249 250 if (h.flags & HIO_VARIABLE) { 251 if (h.loc.size != 1) 252 return ("bad modifier size"); 253 254 /* Single item */ 255 if (imod < MAXMOD) { 256 sc->sc_modloc[imod] = h.loc; 257 sc->sc_mods[imod].mask = 1 << imod; 258 sc->sc_mods[imod].key = HID_GET_USAGE(h.usage); 259 imod++; 260 } else 261 return ("too many modifier keys"); 262 } else { 263 /* Array */ 264 if (h.loc.size != 8) 265 return ("key code size != 8"); 266 267 if (h.loc.count > MAXKEYCODE) 268 return ("too many key codes"); 269 270 if (h.loc.pos % 8 != 0) 271 return ("key codes not on byte boundary"); 272 273 if (sc->sc_nkeycode != 0) 274 return ("multiple key code arrays\n"); 275 276 sc->sc_keycodeloc = h.loc; 277 sc->sc_nkeycode = h.loc.count; 278 } 279 } 280 sc->sc_nmod = imod; 281 hid_end_parse(d); 282 283 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_NUM_LOCK), 284 id, hid_output, &sc->sc_numloc, NULL); 285 286 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_CAPS_LOCK), 287 id, hid_output, &sc->sc_capsloc, NULL); 288 289 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_SCROLL_LOCK), 290 id, hid_output, &sc->sc_scroloc, NULL); 291 292 return (NULL); 293 } 294 295 /***************************************************************************** 296 * 297 * wskbd(9) accessops 298 */ 299 300 static int 301 btkbd_enable(void *self, int on) 302 { 303 struct btkbd_softc *sc = (struct btkbd_softc *)self; 304 305 sc->sc_enabled = on; 306 return 0; 307 } 308 309 static void 310 btkbd_set_leds(void *self, int leds) 311 { 312 struct btkbd_softc *sc = (struct btkbd_softc *)self; 313 uint8_t report; 314 315 if (sc->sc_leds == leds) 316 return; 317 318 sc->sc_leds = leds; 319 320 /* 321 * This is not totally correct, since we did not check the 322 * report size from the descriptor but for keyboards it should 323 * just be a single byte with the relevant bits set. 324 */ 325 report = 0; 326 if ((leds & WSKBD_LED_SCROLL) && sc->sc_scroloc.size == 1) 327 report |= 1 << sc->sc_scroloc.pos; 328 329 if ((leds & WSKBD_LED_NUM) && sc->sc_numloc.size == 1) 330 report |= 1 << sc->sc_numloc.pos; 331 332 if ((leds & WSKBD_LED_CAPS) && sc->sc_capsloc.size == 1) 333 report |= 1 << sc->sc_capsloc.pos; 334 335 if (sc->sc_output) 336 (*sc->sc_output)(&sc->sc_hidev, &report, sizeof(report)); 337 } 338 339 static int 340 btkbd_ioctl(void *self, unsigned long cmd, void *data, int flag, 341 struct lwp *l) 342 { 343 struct btkbd_softc *sc = (struct btkbd_softc *)self; 344 345 switch (cmd) { 346 case WSKBDIO_GTYPE: 347 *(int *)data = WSKBD_TYPE_BLUETOOTH; 348 break; 349 350 case WSKBDIO_SETLEDS: 351 btkbd_set_leds(sc, *(int *)data); 352 break; 353 354 case WSKBDIO_GETLEDS: 355 *(int *)data = sc->sc_leds; 356 break; 357 358 #ifdef WSDISPLAY_COMPAT_RAWKBD 359 case WSKBDIO_SETMODE: 360 sc->sc_rawkbd = (*(int *)data == WSKBD_RAW); 361 #ifdef BTKBD_REPEAT 362 callout_stop(&sc->sc_repeat); 363 #endif 364 break; 365 #endif 366 367 default: 368 return EPASSTHROUGH; 369 } 370 371 return 0; 372 } 373 374 /***************************************************************************** 375 * 376 * btkbd input routine, called from our parent 377 */ 378 379 #ifdef WSDISPLAY_COMPAT_RAWKBD 380 #define NN 0 /* no translation */ 381 /* 382 * Translate USB keycodes to US keyboard XT scancodes. 383 * Scancodes >= 0x80 represent EXTENDED keycodes. 384 * 385 * See http://www.microsoft.com/HWDEV/TECH/input/Scancode.asp 386 */ 387 static const u_int8_t btkbd_trtab[256] = { 388 NN, NN, NN, NN, 0x1e, 0x30, 0x2e, 0x20, /* 00 - 07 */ 389 0x12, 0x21, 0x22, 0x23, 0x17, 0x24, 0x25, 0x26, /* 08 - 0f */ 390 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1f, 0x14, /* 10 - 17 */ 391 0x16, 0x2f, 0x11, 0x2d, 0x15, 0x2c, 0x02, 0x03, /* 18 - 1f */ 392 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, /* 20 - 27 */ 393 0x1c, 0x01, 0x0e, 0x0f, 0x39, 0x0c, 0x0d, 0x1a, /* 28 - 2f */ 394 0x1b, 0x2b, 0x2b, 0x27, 0x28, 0x29, 0x33, 0x34, /* 30 - 37 */ 395 0x35, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, /* 38 - 3f */ 396 0x41, 0x42, 0x43, 0x44, 0x57, 0x58, 0xaa, 0x46, /* 40 - 47 */ 397 0x7f, 0xd2, 0xc7, 0xc9, 0xd3, 0xcf, 0xd1, 0xcd, /* 48 - 4f */ 398 0xcb, 0xd0, 0xc8, 0x45, 0xb5, 0x37, 0x4a, 0x4e, /* 50 - 57 */ 399 0x9c, 0x4f, 0x50, 0x51, 0x4b, 0x4c, 0x4d, 0x47, /* 58 - 5f */ 400 0x48, 0x49, 0x52, 0x53, 0x56, 0xdd, NN, 0x59, /* 60 - 67 */ 401 0x5d, 0x5e, 0x5f, NN, NN, NN, NN, NN, /* 68 - 6f */ 402 NN, NN, NN, NN, NN, NN, NN, NN, /* 70 - 77 */ 403 NN, NN, NN, NN, NN, NN, NN, NN, /* 78 - 7f */ 404 NN, NN, NN, NN, NN, 0x7e, NN, 0x73, /* 80 - 87 */ 405 0x70, 0x7d, 0x79, 0x7b, 0x5c, NN, NN, NN, /* 88 - 8f */ 406 NN, NN, 0x78, 0x77, 0x76, NN, NN, NN, /* 90 - 97 */ 407 NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9f */ 408 NN, NN, NN, NN, NN, NN, NN, NN, /* a0 - a7 */ 409 NN, NN, NN, NN, NN, NN, NN, NN, /* a8 - af */ 410 NN, NN, NN, NN, NN, NN, NN, NN, /* b0 - b7 */ 411 NN, NN, NN, NN, NN, NN, NN, NN, /* b8 - bf */ 412 NN, NN, NN, NN, NN, NN, NN, NN, /* c0 - c7 */ 413 NN, NN, NN, NN, NN, NN, NN, NN, /* c8 - cf */ 414 NN, NN, NN, NN, NN, NN, NN, NN, /* d0 - d7 */ 415 NN, NN, NN, NN, NN, NN, NN, NN, /* d8 - df */ 416 0x1d, 0x2a, 0x38, 0xdb, 0x9d, 0x36, 0xb8, 0xdc, /* e0 - e7 */ 417 NN, NN, NN, NN, NN, NN, NN, NN, /* e8 - ef */ 418 NN, NN, NN, NN, NN, NN, NN, NN, /* f0 - f7 */ 419 NN, NN, NN, NN, NN, NN, NN, NN, /* f8 - ff */ 420 }; 421 #endif 422 423 #define KEY_ERROR 0x01 424 #define PRESS 0x000 425 #define RELEASE 0x100 426 #define CODEMASK 0x0ff 427 #define ADDKEY(c) ibuf[nkeys++] = (c) 428 #define REP_DELAY1 400 429 #define REP_DELAYN 100 430 431 static void 432 btkbd_input(struct bthidev *self, uint8_t *data, int len) 433 { 434 struct btkbd_softc *sc = (struct btkbd_softc *)self; 435 struct btkbd_data *ud = &sc->sc_ndata; 436 uint16_t ibuf[MAXKEYS]; 437 uint32_t mod, omod; 438 int nkeys, i, j; 439 int key; 440 int s; 441 442 if (sc->sc_wskbd == NULL || sc->sc_enabled == 0) 443 return; 444 445 /* extract key modifiers */ 446 ud->modifiers = 0; 447 for (i = 0 ; i < sc->sc_nmod ; i++) 448 if (hid_get_data(data, &sc->sc_modloc[i])) 449 ud->modifiers |= sc->sc_mods[i].mask; 450 451 /* extract keycodes */ 452 memcpy(ud->keycode, data + (sc->sc_keycodeloc.pos / 8), 453 sc->sc_nkeycode); 454 455 if (ud->keycode[0] == KEY_ERROR) 456 return; /* ignore */ 457 458 nkeys = 0; 459 mod = ud->modifiers; 460 omod = sc->sc_odata.modifiers; 461 if (mod != omod) 462 for (i = 0 ; i < sc->sc_nmod ; i++) 463 if ((mod & sc->sc_mods[i].mask) != 464 (omod & sc->sc_mods[i].mask)) 465 ADDKEY(sc->sc_mods[i].key | 466 (mod & sc->sc_mods[i].mask 467 ? PRESS : RELEASE)); 468 469 if (memcmp(ud->keycode, sc->sc_odata.keycode, sc->sc_nkeycode) != 0) { 470 /* Check for released keys. */ 471 for (i = 0 ; i < sc->sc_nkeycode ; i++) { 472 key = sc->sc_odata.keycode[i]; 473 if (key == 0) 474 continue; 475 476 for (j = 0 ; j < sc->sc_nkeycode ; j++) 477 if (key == ud->keycode[j]) 478 goto rfound; 479 480 ADDKEY(key | RELEASE); 481 482 rfound: 483 ; 484 } 485 486 /* Check for pressed keys. */ 487 for (i = 0 ; i < sc->sc_nkeycode ; i++) { 488 key = ud->keycode[i]; 489 if (key == 0) 490 continue; 491 492 for (j = 0; j < sc->sc_nkeycode; j++) 493 if (key == sc->sc_odata.keycode[j]) 494 goto pfound; 495 496 ADDKEY(key | PRESS); 497 pfound: 498 ; 499 } 500 } 501 sc->sc_odata = *ud; 502 503 if (nkeys == 0) 504 return; 505 506 #ifdef WSDISPLAY_COMPAT_RAWKBD 507 if (sc->sc_rawkbd) { 508 u_char cbuf[MAXKEYS * 2]; 509 int c; 510 int npress; 511 512 for (npress = i = j = 0 ; i < nkeys ; i++) { 513 key = ibuf[i]; 514 c = btkbd_trtab[key & CODEMASK]; 515 if (c == NN) 516 continue; 517 518 if (c & 0x80) 519 cbuf[j++] = 0xe0; 520 521 cbuf[j] = c & 0x7f; 522 if (key & RELEASE) 523 cbuf[j] |= 0x80; 524 #ifdef BTKBD_REPEAT 525 else { 526 /* remember pressed keys for autorepeat */ 527 if (c & 0x80) 528 sc->sc_rep[npress++] = 0xe0; 529 530 sc->sc_rep[npress++] = c & 0x7f; 531 } 532 #endif 533 534 j++; 535 } 536 537 s = spltty(); 538 wskbd_rawinput(sc->sc_wskbd, cbuf, j); 539 splx(s); 540 #ifdef BTKBD_REPEAT 541 callout_stop(&sc->sc_repeat); 542 if (npress != 0) { 543 sc->sc_nrep = npress; 544 callout_schedule(&sc->sc_repeat, hz * REP_DELAY1 / 1000); 545 } 546 #endif 547 return; 548 } 549 #endif 550 551 s = spltty(); 552 for (i = 0 ; i < nkeys ; i++) { 553 key = ibuf[i]; 554 wskbd_input(sc->sc_wskbd, 555 key & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN, 556 key & CODEMASK); 557 } 558 splx(s); 559 } 560 561 #ifdef WSDISPLAY_COMPAT_RAWKBD 562 #ifdef BTKBD_REPEAT 563 static void 564 btkbd_repeat(void *arg) 565 { 566 struct btkbd_softc *sc = arg; 567 int s; 568 569 s = spltty(); 570 wskbd_rawinput(sc->sc_wskbd, sc->sc_rep, sc->sc_nrep); 571 splx(s); 572 callout_schedule(&sc->sc_repeat, hz * REP_DELAYN / 1000); 573 } 574 #endif 575 #endif 576
Indexes created Mon Sep 22 13:09:51 GMT 2025