btkbd.c revision 1.8
1 /* $NetBSD: btkbd.c,v 1.8 2007/11/03 17:41:03 plunky 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 1.8 2007/11/03 17:41:03 plunky 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 device_t 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(device_t, struct cfdata *, void *); 118 static void btkbd_attach(device_t, device_t, void *); 119 static int btkbd_detach(device_t, int); 120 121 CFATTACH_DECL_NEW(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(device_t self, struct cfdata *cfdata, void *aux) 168 { 169 struct bthidev_attach_args *ba = aux; 170 171 if (hid_is_collection(ba->ba_desc, ba->ba_dlen, ba->ba_id, 172 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_KEYBOARD))) 173 return 1; 174 175 return 0; 176 } 177 178 static void 179 btkbd_attach(device_t parent, device_t self, void *aux) 180 { 181 struct btkbd_softc *sc = device_private(self); 182 struct bthidev_attach_args *ba = aux; 183 struct wskbddev_attach_args wska; 184 const char *parserr; 185 186 sc->sc_output = ba->ba_output; 187 ba->ba_input = btkbd_input; 188 189 parserr = btkbd_parse_desc(sc, ba->ba_id, ba->ba_desc, ba->ba_dlen); 190 if (parserr != NULL) { 191 aprint_error("%s\n", parserr); 192 return; 193 } 194 195 aprint_normal("\n"); 196 197 #ifdef WSDISPLAY_COMPAT_RAWKBD 198 #ifdef BTKBD_REPEAT 199 callout_init(&sc->sc_repeat, 0); 200 callout_setfunc(&sc->sc_repeat, btkbd_repeat, sc); 201 #endif 202 #endif 203 204 wska.console = 0; 205 wska.keymap = &btkbd_keymapdata; 206 wska.accessops = &btkbd_accessops; 207 wska.accesscookie = sc; 208 209 sc->sc_wskbd = config_found(self, &wska, wskbddevprint); 210 } 211 212 static int 213 btkbd_detach(device_t self, int flags) 214 { 215 struct btkbd_softc *sc = device_private(self); 216 int err = 0; 217 218 #ifdef WSDISPLAY_COMPAT_RAWKBD 219 #ifdef BTKBD_REPEAT 220 callout_stop(&sc->sc_repeat); 221 KASSERT(!callout_invoking(&sc->sc_repeat)); 222 #endif 223 #endif 224 225 if (sc->sc_wskbd != NULL) { 226 err = config_detach(sc->sc_wskbd, flags); 227 sc->sc_wskbd = NULL; 228 } 229 230 return err; 231 } 232 233 static const char * 234 btkbd_parse_desc(struct btkbd_softc *sc, int id, const void *desc, int dlen) 235 { 236 struct hid_data *d; 237 struct hid_item h; 238 int imod; 239 240 imod = 0; 241 sc->sc_nkeycode = 0; 242 d = hid_start_parse(desc, dlen, hid_input); 243 while (hid_get_item(d, &h)) { 244 if (h.kind != hid_input || (h.flags & HIO_CONST) || 245 HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD || 246 h.report_ID != id) 247 continue; 248 249 if (h.flags & HIO_VARIABLE) { 250 if (h.loc.size != 1) 251 return ("bad modifier size"); 252 253 /* Single item */ 254 if (imod < MAXMOD) { 255 sc->sc_modloc[imod] = h.loc; 256 sc->sc_mods[imod].mask = 1 << imod; 257 sc->sc_mods[imod].key = HID_GET_USAGE(h.usage); 258 imod++; 259 } else 260 return ("too many modifier keys"); 261 } else { 262 /* Array */ 263 if (h.loc.size != 8) 264 return ("key code size != 8"); 265 266 if (h.loc.count > MAXKEYCODE) 267 return ("too many key codes"); 268 269 if (h.loc.pos % 8 != 0) 270 return ("key codes not on byte boundary"); 271 272 if (sc->sc_nkeycode != 0) 273 return ("multiple key code arrays\n"); 274 275 sc->sc_keycodeloc = h.loc; 276 sc->sc_nkeycode = h.loc.count; 277 } 278 } 279 sc->sc_nmod = imod; 280 hid_end_parse(d); 281 282 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_NUM_LOCK), 283 id, hid_output, &sc->sc_numloc, NULL); 284 285 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_CAPS_LOCK), 286 id, hid_output, &sc->sc_capsloc, NULL); 287 288 hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_SCROLL_LOCK), 289 id, hid_output, &sc->sc_scroloc, NULL); 290 291 return (NULL); 292 } 293 294 /***************************************************************************** 295 * 296 * wskbd(9) accessops 297 */ 298 299 static int 300 btkbd_enable(void *self, int on) 301 { 302 struct btkbd_softc *sc = self; 303 304 sc->sc_enabled = on; 305 return 0; 306 } 307 308 static void 309 btkbd_set_leds(void *self, int leds) 310 { 311 struct btkbd_softc *sc = self; 312 uint8_t report; 313 314 if (sc->sc_leds == leds) 315 return; 316 317 sc->sc_leds = leds; 318 319 /* 320 * This is not totally correct, since we did not check the 321 * report size from the descriptor but for keyboards it should 322 * just be a single byte with the relevant bits set. 323 */ 324 report = 0; 325 if ((leds & WSKBD_LED_SCROLL) && sc->sc_scroloc.size == 1) 326 report |= 1 << sc->sc_scroloc.pos; 327 328 if ((leds & WSKBD_LED_NUM) && sc->sc_numloc.size == 1) 329 report |= 1 << sc->sc_numloc.pos; 330 331 if ((leds & WSKBD_LED_CAPS) && sc->sc_capsloc.size == 1) 332 report |= 1 << sc->sc_capsloc.pos; 333 334 if (sc->sc_output) 335 (*sc->sc_output)(&sc->sc_hidev, &report, sizeof(report)); 336 } 337 338 static int 339 btkbd_ioctl(void *self, unsigned long cmd, void *data, int flag, 340 struct lwp *l) 341 { 342 struct btkbd_softc *sc = self; 343 344 switch (cmd) { 345 case WSKBDIO_GTYPE: 346 *(int *)data = WSKBD_TYPE_BLUETOOTH; 347 break; 348 349 case WSKBDIO_SETLEDS: 350 btkbd_set_leds(sc, *(int *)data); 351 break; 352 353 case WSKBDIO_GETLEDS: 354 *(int *)data = sc->sc_leds; 355 break; 356 357 #ifdef WSDISPLAY_COMPAT_RAWKBD 358 case WSKBDIO_SETMODE: 359 sc->sc_rawkbd = (*(int *)data == WSKBD_RAW); 360 #ifdef BTKBD_REPEAT 361 callout_stop(&sc->sc_repeat); 362 #endif 363 break; 364 #endif 365 366 default: 367 return EPASSTHROUGH; 368 } 369 370 return 0; 371 } 372 373 /***************************************************************************** 374 * 375 * btkbd input routine, called from our parent 376 */ 377 378 #ifdef WSDISPLAY_COMPAT_RAWKBD 379 #define NN 0 /* no translation */ 380 /* 381 * Translate USB keycodes to US keyboard XT scancodes. 382 * Scancodes >= 0x80 represent EXTENDED keycodes. 383 * 384 * See http://www.microsoft.com/HWDEV/TECH/input/Scancode.asp 385 */ 386 static const u_int8_t btkbd_trtab[256] = { 387 NN, NN, NN, NN, 0x1e, 0x30, 0x2e, 0x20, /* 00 - 07 */ 388 0x12, 0x21, 0x22, 0x23, 0x17, 0x24, 0x25, 0x26, /* 08 - 0f */ 389 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1f, 0x14, /* 10 - 17 */ 390 0x16, 0x2f, 0x11, 0x2d, 0x15, 0x2c, 0x02, 0x03, /* 18 - 1f */ 391 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, /* 20 - 27 */ 392 0x1c, 0x01, 0x0e, 0x0f, 0x39, 0x0c, 0x0d, 0x1a, /* 28 - 2f */ 393 0x1b, 0x2b, 0x2b, 0x27, 0x28, 0x29, 0x33, 0x34, /* 30 - 37 */ 394 0x35, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, /* 38 - 3f */ 395 0x41, 0x42, 0x43, 0x44, 0x57, 0x58, 0xaa, 0x46, /* 40 - 47 */ 396 0x7f, 0xd2, 0xc7, 0xc9, 0xd3, 0xcf, 0xd1, 0xcd, /* 48 - 4f */ 397 0xcb, 0xd0, 0xc8, 0x45, 0xb5, 0x37, 0x4a, 0x4e, /* 50 - 57 */ 398 0x9c, 0x4f, 0x50, 0x51, 0x4b, 0x4c, 0x4d, 0x47, /* 58 - 5f */ 399 0x48, 0x49, 0x52, 0x53, 0x56, 0xdd, NN, 0x59, /* 60 - 67 */ 400 0x5d, 0x5e, 0x5f, NN, NN, NN, NN, NN, /* 68 - 6f */ 401 NN, NN, NN, NN, NN, NN, NN, NN, /* 70 - 77 */ 402 NN, NN, NN, NN, NN, NN, NN, NN, /* 78 - 7f */ 403 NN, NN, NN, NN, NN, 0x7e, NN, 0x73, /* 80 - 87 */ 404 0x70, 0x7d, 0x79, 0x7b, 0x5c, NN, NN, NN, /* 88 - 8f */ 405 NN, NN, 0x78, 0x77, 0x76, NN, NN, NN, /* 90 - 97 */ 406 NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9f */ 407 NN, NN, NN, NN, NN, NN, NN, NN, /* a0 - a7 */ 408 NN, NN, NN, NN, NN, NN, NN, NN, /* a8 - af */ 409 NN, NN, NN, NN, NN, NN, NN, NN, /* b0 - b7 */ 410 NN, NN, NN, NN, NN, NN, NN, NN, /* b8 - bf */ 411 NN, NN, NN, NN, NN, NN, NN, NN, /* c0 - c7 */ 412 NN, NN, NN, NN, NN, NN, NN, NN, /* c8 - cf */ 413 NN, NN, NN, NN, NN, NN, NN, NN, /* d0 - d7 */ 414 NN, NN, NN, NN, NN, NN, NN, NN, /* d8 - df */ 415 0x1d, 0x2a, 0x38, 0xdb, 0x9d, 0x36, 0xb8, 0xdc, /* e0 - e7 */ 416 NN, NN, NN, NN, NN, NN, NN, NN, /* e8 - ef */ 417 NN, NN, NN, NN, NN, NN, NN, NN, /* f0 - f7 */ 418 NN, NN, NN, NN, NN, NN, NN, NN, /* f8 - ff */ 419 }; 420 #endif 421 422 #define KEY_ERROR 0x01 423 #define PRESS 0x000 424 #define RELEASE 0x100 425 #define CODEMASK 0x0ff 426 #define ADDKEY(c) ibuf[nkeys++] = (c) 427 #define REP_DELAY1 400 428 #define REP_DELAYN 100 429 430 static void 431 btkbd_input(struct bthidev *self, uint8_t *data, int len) 432 { 433 struct btkbd_softc *sc = (struct btkbd_softc *)self; 434 struct btkbd_data *ud = &sc->sc_ndata; 435 uint16_t ibuf[MAXKEYS]; 436 uint32_t mod, omod; 437 int nkeys, i, j; 438 int key; 439 int s; 440 441 if (sc->sc_wskbd == NULL || sc->sc_enabled == 0) 442 return; 443 444 /* extract key modifiers */ 445 ud->modifiers = 0; 446 for (i = 0 ; i < sc->sc_nmod ; i++) 447 if (hid_get_data(data, &sc->sc_modloc[i])) 448 ud->modifiers |= sc->sc_mods[i].mask; 449 450 /* extract keycodes */ 451 memcpy(ud->keycode, data + (sc->sc_keycodeloc.pos / 8), 452 sc->sc_nkeycode); 453 454 if (ud->keycode[0] == KEY_ERROR) 455 return; /* ignore */ 456 457 nkeys = 0; 458 mod = ud->modifiers; 459 omod = sc->sc_odata.modifiers; 460 if (mod != omod) 461 for (i = 0 ; i < sc->sc_nmod ; i++) 462 if ((mod & sc->sc_mods[i].mask) != 463 (omod & sc->sc_mods[i].mask)) 464 ADDKEY(sc->sc_mods[i].key | 465 (mod & sc->sc_mods[i].mask 466 ? PRESS : RELEASE)); 467 468 if (memcmp(ud->keycode, sc->sc_odata.keycode, sc->sc_nkeycode) != 0) { 469 /* Check for released keys. */ 470 for (i = 0 ; i < sc->sc_nkeycode ; i++) { 471 key = sc->sc_odata.keycode[i]; 472 if (key == 0) 473 continue; 474 475 for (j = 0 ; j < sc->sc_nkeycode ; j++) 476 if (key == ud->keycode[j]) 477 goto rfound; 478 479 ADDKEY(key | RELEASE); 480 481 rfound: 482 ; 483 } 484 485 /* Check for pressed keys. */ 486 for (i = 0 ; i < sc->sc_nkeycode ; i++) { 487 key = ud->keycode[i]; 488 if (key == 0) 489 continue; 490 491 for (j = 0; j < sc->sc_nkeycode; j++) 492 if (key == sc->sc_odata.keycode[j]) 493 goto pfound; 494 495 ADDKEY(key | PRESS); 496 pfound: 497 ; 498 } 499 } 500 sc->sc_odata = *ud; 501 502 if (nkeys == 0) 503 return; 504 505 #ifdef WSDISPLAY_COMPAT_RAWKBD 506 if (sc->sc_rawkbd) { 507 u_char cbuf[MAXKEYS * 2]; 508 int c; 509 int npress; 510 511 for (npress = i = j = 0 ; i < nkeys ; i++) { 512 key = ibuf[i]; 513 c = btkbd_trtab[key & CODEMASK]; 514 if (c == NN) 515 continue; 516 517 if (c & 0x80) 518 cbuf[j++] = 0xe0; 519 520 cbuf[j] = c & 0x7f; 521 if (key & RELEASE) 522 cbuf[j] |= 0x80; 523 #ifdef BTKBD_REPEAT 524 else { 525 /* remember pressed keys for autorepeat */ 526 if (c & 0x80) 527 sc->sc_rep[npress++] = 0xe0; 528 529 sc->sc_rep[npress++] = c & 0x7f; 530 } 531 #endif 532 533 j++; 534 } 535 536 s = spltty(); 537 wskbd_rawinput(sc->sc_wskbd, cbuf, j); 538 splx(s); 539 #ifdef BTKBD_REPEAT 540 callout_stop(&sc->sc_repeat); 541 if (npress != 0) { 542 sc->sc_nrep = npress; 543 callout_schedule(&sc->sc_repeat, hz * REP_DELAY1 / 1000); 544 } 545 #endif 546 return; 547 } 548 #endif 549 550 s = spltty(); 551 for (i = 0 ; i < nkeys ; i++) { 552 key = ibuf[i]; 553 wskbd_input(sc->sc_wskbd, 554 key & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN, 555 key & CODEMASK); 556 } 557 splx(s); 558 } 559 560 #ifdef WSDISPLAY_COMPAT_RAWKBD 561 #ifdef BTKBD_REPEAT 562 static void 563 btkbd_repeat(void *arg) 564 { 565 struct btkbd_softc *sc = arg; 566 int s; 567 568 s = spltty(); 569 wskbd_rawinput(sc->sc_wskbd, sc->sc_rep, sc->sc_nrep); 570 splx(s); 571 callout_schedule(&sc->sc_repeat, hz * REP_DELAYN / 1000); 572 } 573 #endif 574 #endif 575
Indexes created Thu Sep 25 14:09:45 GMT 2025