adb.c revision 1.20
1 /* $NetBSD: adb.c,v 1.20 1998/02/21 00:37:07 scottr Exp $ */ 2 3 /*- 4 * Copyright (C) 1994 Bradley A. Grantham 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 e* notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bradley A. Grantham. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "opt_adb.h" 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/fcntl.h> 38 #include <sys/poll.h> 39 #include <sys/select.h> 40 #include <sys/proc.h> 41 #include <sys/signalvar.h> 42 #include <sys/systm.h> 43 44 #include <machine/autoconf.h> 45 #include <machine/keyboard.h> 46 47 #include <mac68k/mac68k/macrom.h> 48 #include <mac68k/dev/adbvar.h> 49 #include <mac68k/dev/itevar.h> 50 51 /* 52 * Function declarations. 53 */ 54 static int adbmatch __P((struct device *, struct cfdata *, void *)); 55 static void adbattach __P((struct device *, struct device *, void *)); 56 57 /* 58 * Global variables. 59 */ 60 int adb_polling = 0; /* Are we polling? (Debugger mode) */ 61 int adb_initted = 0; /* adb_init() has completed successfully */ 62 #ifdef ADB_DEBUG 63 int adb_debug = 0; /* Output debugging messages */ 64 #endif /* ADB_DEBUG */ 65 66 /* 67 * Local variables. 68 */ 69 70 /* External keyboard translation matrix */ 71 extern unsigned char keyboard[128][3]; 72 73 /* Event queue definitions */ 74 #if !defined(ADB_MAX_EVENTS) 75 #define ADB_MAX_EVENTS 200 /* Maximum events to be kept in queue */ 76 /* maybe should be higher for slower macs? */ 77 #endif /* !defined(ADB_MAX_EVENTS) */ 78 static adb_event_t adb_evq[ADB_MAX_EVENTS]; /* ADB event queue */ 79 static int adb_evq_tail = 0; /* event queue tail */ 80 static int adb_evq_len = 0; /* event queue length */ 81 82 /* ADB device state information */ 83 static int adb_isopen = 0; /* Are we queuing events for adb_read? */ 84 static struct selinfo adb_selinfo; /* select() info */ 85 static struct proc *adb_ioproc = NULL; /* process to wakeup */ 86 87 /* Key repeat parameters */ 88 static int adb_rptdelay = 20; /* ticks before auto-repeat */ 89 static int adb_rptinterval = 6; /* ticks between auto-repeat */ 90 static int adb_repeating = -1; /* key that is auto-repeating */ 91 static adb_event_t adb_rptevent;/* event to auto-repeat */ 92 93 /* Driver definition. -- This should probably be a bus... */ 94 struct cfattach adb_ca = { 95 sizeof(struct device), adbmatch, adbattach 96 }; 97 98 static int 99 adbmatch(parent, cf, aux) 100 struct device *parent; 101 struct cfdata *cf; 102 void *aux; 103 { 104 static int adb_matched = 0; 105 106 /* Allow only one instance. */ 107 if (adb_matched) 108 return (0); 109 110 adb_matched = 1; 111 return (1); 112 } 113 114 static void 115 adbattach(parent, dev, aux) 116 struct device *parent, *dev; 117 void *aux; 118 { 119 printf(" (ADB event device)\n"); 120 adb_init(); 121 } 122 123 void 124 adb_enqevent(event) 125 adb_event_t *event; 126 { 127 int s; 128 129 s = spladb(); 130 131 #ifdef DIAGNOSTIC 132 if (adb_evq_tail < 0 || adb_evq_tail >= ADB_MAX_EVENTS) 133 panic("adb: event queue tail is out of bounds"); 134 135 if (adb_evq_len < 0 || adb_evq_len > ADB_MAX_EVENTS) 136 panic("adb: event queue len is out of bounds"); 137 #endif 138 139 if (adb_evq_len == ADB_MAX_EVENTS) { 140 splx(s); 141 return; /* Oh, well... */ 142 } 143 adb_evq[(adb_evq_len + adb_evq_tail) % ADB_MAX_EVENTS] = 144 *event; 145 adb_evq_len++; 146 147 selwakeup(&adb_selinfo); 148 if (adb_ioproc) 149 psignal(adb_ioproc, SIGIO); 150 151 splx(s); 152 } 153 154 void 155 adb_handoff(event) 156 adb_event_t *event; 157 { 158 if (adb_isopen && !adb_polling) { 159 adb_enqevent(event); 160 } else { 161 if (event->def_addr == 2) 162 ite_intr(event); 163 } 164 } 165 166 167 void 168 adb_autorepeat(keyp) 169 void *keyp; 170 { 171 int key = (int) keyp; 172 173 adb_rptevent.bytes[0] |= 0x80; 174 microtime(&adb_rptevent.timestamp); 175 adb_handoff(&adb_rptevent); /* do key up */ 176 177 adb_rptevent.bytes[0] &= 0x7f; 178 microtime(&adb_rptevent.timestamp); 179 adb_handoff(&adb_rptevent); /* do key down */ 180 181 if (adb_repeating == key) { 182 timeout(adb_autorepeat, keyp, adb_rptinterval); 183 } 184 } 185 186 187 void 188 adb_dokeyupdown(event) 189 adb_event_t *event; 190 { 191 int adb_key; 192 193 if (event->def_addr == 2) { 194 adb_key = event->u.k.key & 0x7f; 195 if (!(event->u.k.key & 0x80) && 196 keyboard[event->u.k.key & 0x7f][0] != 0) { 197 /* ignore shift & control */ 198 if (adb_repeating != -1) { 199 untimeout(adb_autorepeat, 200 (void *) adb_rptevent.u.k.key); 201 } 202 adb_rptevent = *event; 203 adb_repeating = adb_key; 204 timeout(adb_autorepeat, 205 (void *) adb_key, adb_rptdelay); 206 } else { 207 if (adb_repeating != -1) { 208 adb_repeating = -1; 209 untimeout(adb_autorepeat, 210 (void *) adb_rptevent.u.k.key); 211 } 212 adb_rptevent = *event; 213 } 214 } 215 adb_handoff(event); 216 } 217 218 static adb_ms_buttons = 0; 219 220 void 221 adb_keymaybemouse(event) 222 adb_event_t *event; 223 { 224 static int optionkey_down = 0; 225 adb_event_t new_event; 226 227 if (event->u.k.key == ADBK_KEYDOWN(ADBK_OPTION)) { 228 optionkey_down = 1; 229 } else if (event->u.k.key == ADBK_KEYUP(ADBK_OPTION)) { 230 /* key up */ 231 optionkey_down = 0; 232 if (adb_ms_buttons & 0xfe) { 233 adb_ms_buttons &= 1; 234 new_event.def_addr = ADBADDR_MS; 235 new_event.u.m.buttons = adb_ms_buttons; 236 new_event.u.m.dx = new_event.u.m.dy = 0; 237 microtime(&new_event.timestamp); 238 adb_dokeyupdown(&new_event); 239 } 240 } else if (optionkey_down) { 241 if (event->u.k.key == ADBK_KEYDOWN(ADBK_1)) { 242 adb_ms_buttons |= 1; /* left down */ 243 new_event.def_addr = ADBADDR_MS; 244 new_event.u.m.buttons = adb_ms_buttons; 245 new_event.u.m.dx = new_event.u.m.dy = 0; 246 microtime(&new_event.timestamp); 247 adb_dokeyupdown(&new_event); 248 } else if (event->u.k.key == ADBK_KEYUP(ADBK_1)) { 249 adb_ms_buttons &= ~1; /* left up */ 250 new_event.def_addr = ADBADDR_MS; 251 new_event.u.m.buttons = adb_ms_buttons; 252 new_event.u.m.dx = new_event.u.m.dy = 0; 253 microtime(&new_event.timestamp); 254 adb_dokeyupdown(&new_event); 255 } else if ((event->u.k.key == ADBK_KEYDOWN(ADBK_LEFT)) || 256 (event->u.k.key == ADBK_KEYDOWN(ADBK_2))) { 257 adb_ms_buttons |= 2; /* middle down */ 258 new_event.def_addr = ADBADDR_MS; 259 new_event.u.m.buttons = adb_ms_buttons; 260 new_event.u.m.dx = new_event.u.m.dy = 0; 261 microtime(&new_event.timestamp); 262 adb_dokeyupdown(&new_event); 263 } else if ((event->u.k.key == ADBK_KEYUP(ADBK_LEFT)) || 264 (event->u.k.key == ADBK_KEYUP(ADBK_2))) { 265 adb_ms_buttons &= ~2; /* middle up */ 266 new_event.def_addr = ADBADDR_MS; 267 new_event.u.m.buttons = adb_ms_buttons; 268 new_event.u.m.dx = new_event.u.m.dy = 0; 269 microtime(&new_event.timestamp); 270 adb_dokeyupdown(&new_event); 271 } else if ((event->u.k.key == ADBK_KEYDOWN(ADBK_RIGHT)) || 272 (event->u.k.key == ADBK_KEYDOWN(ADBK_3))) { 273 adb_ms_buttons |= 4; /* right down */ 274 new_event.def_addr = ADBADDR_MS; 275 new_event.u.m.buttons = adb_ms_buttons; 276 new_event.u.m.dx = new_event.u.m.dy = 0; 277 microtime(&new_event.timestamp); 278 adb_dokeyupdown(&new_event); 279 } else if ((event->u.k.key == ADBK_KEYUP(ADBK_RIGHT)) || 280 (event->u.k.key == ADBK_KEYUP(ADBK_3))) { 281 adb_ms_buttons &= ~4; /* right up */ 282 new_event.def_addr = ADBADDR_MS; 283 new_event.u.m.buttons = adb_ms_buttons; 284 new_event.u.m.dx = new_event.u.m.dy = 0; 285 microtime(&new_event.timestamp); 286 adb_dokeyupdown(&new_event); 287 } else if (ADBK_MODIFIER(event->u.k.key)) { 288 /* ctrl, shift, cmd */ 289 adb_dokeyupdown(event); 290 } else if (!(event->u.k.key & 0x80)) { 291 /* key down */ 292 new_event = *event; 293 294 /* send option-down */ 295 new_event.u.k.key = ADBK_KEYDOWN(ADBK_OPTION); 296 new_event.bytes[0] = new_event.u.k.key; 297 microtime(&new_event.timestamp); 298 adb_dokeyupdown(&new_event); 299 300 /* send key-down */ 301 new_event.u.k.key = event->bytes[0]; 302 new_event.bytes[0] = new_event.u.k.key; 303 microtime(&new_event.timestamp); 304 adb_dokeyupdown(&new_event); 305 306 /* send key-up */ 307 new_event.u.k.key = 308 ADBK_KEYUP(ADBK_KEYVAL(event->bytes[0])); 309 microtime(&new_event.timestamp); 310 new_event.bytes[0] = new_event.u.k.key; 311 adb_dokeyupdown(&new_event); 312 313 /* send option-up */ 314 new_event.u.k.key = ADBK_KEYUP(ADBK_OPTION); 315 new_event.bytes[0] = new_event.u.k.key; 316 microtime(&new_event.timestamp); 317 adb_dokeyupdown(&new_event); 318 } else { 319 /* option-keyup -- do nothing. */ 320 } 321 } else { 322 adb_dokeyupdown(event); 323 } 324 } 325 326 327 void 328 adb_processevent(event) 329 adb_event_t *event; 330 { 331 adb_event_t new_event; 332 int i, button_bit, max_byte, mask, buttons; 333 334 new_event = *event; 335 buttons = 0; 336 337 switch (event->def_addr) { 338 case ADBADDR_KBD: 339 new_event.u.k.key = event->bytes[0]; 340 new_event.bytes[1] = 0xff; 341 adb_keymaybemouse(&new_event); 342 if (event->bytes[1] != 0xff) { 343 new_event.u.k.key = event->bytes[1]; 344 new_event.bytes[0] = event->bytes[1]; 345 new_event.bytes[1] = 0xff; 346 adb_keymaybemouse(&new_event); 347 } 348 break; 349 case ADBADDR_MS: 350 /* 351 * This should handle both plain ol' Apple mice and mice 352 * that claim to support the Extended Apple Mouse Protocol. 353 */ 354 max_byte = event->byte_count; 355 button_bit = 1; 356 switch (event->hand_id) { 357 case ADBMS_USPEED: 358 /* MicroSpeed mouse */ 359 if (max_byte == 4) 360 buttons = (~event->bytes[2]) & 0xff; 361 else 362 buttons = (event->bytes[0] & 0x80) ? 0 : 1; 363 break; 364 case ADBMS_MSA3: 365 /* Mouse Systems A3 mouse */ 366 if (max_byte == 3) 367 buttons = (~event->bytes[2]) & 0x07; 368 else 369 buttons = (event->bytes[0] & 0x80) ? 0 : 1; 370 break; 371 default: 372 /* Classic Mouse Protocol (up to 2 buttons) */ 373 for (i = 0; i < 2; i++, button_bit <<= 1) 374 /* 0 when button down */ 375 if (!(event->bytes[i] & 0x80)) 376 buttons |= button_bit; 377 else 378 buttons &= ~button_bit; 379 /* Extended Protocol (up to 6 more buttons) */ 380 for (mask = 0x80; i < max_byte; 381 i += (mask == 0x80), button_bit <<= 1) { 382 /* 0 when button down */ 383 if (!(event->bytes[i] & mask)) 384 buttons |= button_bit; 385 else 386 buttons &= ~button_bit; 387 mask = ((mask >> 4) & 0xf) 388 | ((mask & 0xf) << 4); 389 } 390 break; 391 } 392 new_event.u.m.buttons = adb_ms_buttons | buttons; 393 new_event.u.m.dx = ((signed int) (event->bytes[1] & 0x3f)) - 394 ((event->bytes[1] & 0x40) ? 64 : 0); 395 new_event.u.m.dy = ((signed int) (event->bytes[0] & 0x3f)) - 396 ((event->bytes[0] & 0x40) ? 64 : 0); 397 adb_dokeyupdown(&new_event); 398 break; 399 default: /* God only knows. */ 400 adb_dokeyupdown(event); 401 } 402 } 403 404 405 int 406 adbopen(dev, flag, mode, p) 407 dev_t dev; 408 int flag, mode; 409 struct proc *p; 410 { 411 register int unit; 412 int error = 0; 413 int s; 414 415 unit = minor(dev); 416 if (unit != 0 || !adb_initted) 417 return (ENXIO); 418 419 s = spladb(); 420 if (adb_isopen) { 421 splx(s); 422 return (EBUSY); 423 } 424 adb_evq_tail = 0; 425 adb_evq_len = 0; 426 adb_isopen = 1; 427 adb_ioproc = p; 428 splx(s); 429 430 return (error); 431 } 432 433 434 int 435 adbclose(dev, flag, mode, p) 436 dev_t dev; 437 int flag, mode; 438 struct proc *p; 439 { 440 int s = spladb(); 441 442 adb_isopen = 0; 443 adb_ioproc = NULL; 444 splx(s); 445 446 return (0); 447 } 448 449 450 int 451 adbread(dev, uio, flag) 452 dev_t dev; 453 struct uio *uio; 454 int flag; 455 { 456 int s, error; 457 int willfit; 458 int total; 459 int firstmove; 460 int moremove; 461 462 if (uio->uio_resid < sizeof(adb_event_t)) 463 return (EMSGSIZE); /* close enough. */ 464 465 s = spladb(); 466 if (adb_evq_len == 0) { 467 splx(s); 468 return (0); 469 } 470 willfit = howmany(uio->uio_resid, sizeof(adb_event_t)); 471 total = (adb_evq_len < willfit) ? adb_evq_len : willfit; 472 473 firstmove = (adb_evq_tail + total > ADB_MAX_EVENTS) 474 ? (ADB_MAX_EVENTS - adb_evq_tail) : total; 475 476 error = uiomove((caddr_t) & adb_evq[adb_evq_tail], 477 firstmove * sizeof(adb_event_t), uio); 478 if (error) { 479 splx(s); 480 return (error); 481 } 482 moremove = total - firstmove; 483 484 if (moremove > 0) { 485 error = uiomove((caddr_t) & adb_evq[0], 486 moremove * sizeof(adb_event_t), uio); 487 if (error) { 488 splx(s); 489 return (error); 490 } 491 } 492 adb_evq_tail = (adb_evq_tail + total) % ADB_MAX_EVENTS; 493 adb_evq_len -= total; 494 splx(s); 495 return (0); 496 } 497 498 499 int 500 adbwrite(dev, uio, flag) 501 dev_t dev; 502 struct uio *uio; 503 int flag; 504 { 505 return 0; 506 } 507 508 509 int 510 adbioctl(dev, cmd, data, flag, p) 511 dev_t dev; 512 int cmd; 513 caddr_t data; 514 int flag; 515 struct proc *p; 516 { 517 switch (cmd) { 518 case ADBIOC_DEVSINFO: { 519 adb_devinfo_t *di; 520 ADBDataBlock adbdata; 521 int totaldevs; 522 int adbaddr; 523 int i; 524 525 di = (void *) data; 526 527 /* Initialize to no devices */ 528 for (i = 0; i < 16; i++) 529 di->dev[i].addr = -1; 530 531 totaldevs = CountADBs(); 532 for (i = 1; i <= totaldevs; i++) { 533 adbaddr = GetIndADB(&adbdata, i); 534 di->dev[adbaddr].addr = adbaddr; 535 di->dev[adbaddr].default_addr = adbdata.origADBAddr; 536 di->dev[adbaddr].handler_id = adbdata.devType; 537 } 538 539 /* Must call ADB Manager to get devices now */ 540 break; 541 } 542 543 case ADBIOC_GETREPEAT:{ 544 adb_rptinfo_t *ri; 545 546 ri = (void *) data; 547 ri->delay_ticks = adb_rptdelay; 548 ri->interval_ticks = adb_rptinterval; 549 break; 550 } 551 552 case ADBIOC_SETREPEAT:{ 553 adb_rptinfo_t *ri; 554 555 ri = (void *) data; 556 adb_rptdelay = ri->delay_ticks; 557 adb_rptinterval = ri->interval_ticks; 558 break; 559 } 560 561 case ADBIOC_RESET: 562 adb_init(); 563 break; 564 565 case ADBIOC_LISTENCMD:{ 566 adb_listencmd_t *lc; 567 568 lc = (void *) data; 569 } 570 571 default: 572 return (EINVAL); 573 } 574 return (0); 575 } 576 577 578 int 579 adbpoll(dev, events, p) 580 dev_t dev; 581 int events; 582 struct proc *p; 583 { 584 int s, revents; 585 586 revents = events & (POLLOUT | POLLWRNORM); 587 588 if ((events & (POLLIN | POLLRDNORM)) == 0) 589 return (revents); 590 591 s = spladb(); 592 if (adb_evq_len > 0) 593 revents |= events & (POLLIN | POLLRDNORM); 594 else 595 selrecord(p, &adb_selinfo); 596 splx(s); 597 598 return (revents); 599 } 600
Indexes created Mon Sep 22 13:09:51 GMT 2025