1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 23 /* All Rights Reserved */ 24 25 /* 26 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <sys/errno.h> 34 #include <sys/inline.h> 35 #include <sys/termio.h> 36 #include <sys/stropts.h> 37 #include <sys/termios.h> 38 #include <sys/stream.h> 39 #include <sys/strtty.h> 40 #include <sys/strsubr.h> 41 #include <sys/strsun.h> 42 #include <sys/ddi.h> 43 #include <sys/sunddi.h> 44 #include <sys/note.h> 45 #include "sys/consdev.h" 46 #include <sys/kbd.h> 47 #include <sys/kbtrans.h> 48 #include "kb8042.h" 49 50 #include <sys/i8042.h> 51 52 #include "sys/kbio.h" /* for KIOCSLAYOUT */ 53 #include "sys/stat.h" 54 #include "sys/reboot.h" 55 #include <sys/promif.h> 56 #include <sys/beep.h> 57 #include <sys/inttypes.h> 58 59 /* 60 * For any keyboard, there is a unique code describing the position 61 * of the key on a keyboard. We refer to the code as "station number". 62 * The following table is used to map the station numbers from ps2 63 * AT/XT keyboards to that of a USB one. 64 * 65 * A mapping was added for entry K8042_STOP, to map to USB key code 120 (which 66 * maps to the STOP key) when in KB_USB mode, and maps to a HOLE entry 67 * when in KB_PC mode. Note that this does not need to be made conditional 68 * on the architecture for which this module is complied because there are no 69 * keys that map to K8042_STOP on non-SPARC platforms. 70 */ 71 static kbtrans_key_t keytab_pc2usb[KBTRANS_KEYNUMS_MAX] = { 72 /* 0 */ 0, 53, 30, 31, 32, 33, 34, 35, 73 /* 8 */ 36, 37, 38, 39, 45, 46, 137, 42, 74 /* 16 */ 43, 20, 26, 8, 21, 23, 28, 24, 75 /* 24 */ 12, 18, 19, 47, 48, 49, 57, 4, 76 /* 32 */ 22, 7, 9, 10, 11, 13, 14, 15, 77 /* 40 */ 51, 52, 50, 40, 225, 100, 29, 27, 78 /* 48 */ 6, 25, 5, 17, 16, 54, 55, 56, 79 /* 56 */ 135, 229, 224, 227, 226, 44, 230, 231, 80 /* 64 */ 228, 101, 0, 0, 0, 0, 0, 0, 81 /* 72 */ 0, 0, 0, 73, 76, 0, 0, 80, 82 /* 80 */ 74, 77, 0, 82, 81, 75, 78, 0, 83 /* 88 */ 0, 79, 83, 95, 92, 89, 0, 84, 84 /* 96 */ 96, 93, 90, 98, 85, 97, 94, 91, 85 /* 104 */ 99, 86, 87, 133, 88, 0, 41, 0, 86 /* 112 */ 58, 59, 60, 61, 62, 63, 64, 65, 87 /* 120 */ 66, 67, 68, 69, 70, 71, 72, 0, 88 /* 128 */ 0, 0, 0, 139, 138, 136, 0, 0, 89 /* 136 */ 0, 0, 0, 0, 0, 0, 0, 0, 90 /* 144 */ 0, 0, 0, 0, 0, 0, 0, 0, 91 /* 152 */ 0, 0, 0, 0, 0, 0, 0, 0, 92 /* 160 */ 120, 0, 0, 0, 0, 0, 0, 0, 93 /* 168 */ 0, 0, 0, 0, 0, 0, 0, 0, 94 /* 176 */ 0, 0, 0, 0, 0, 0, 0, 0, 95 /* 184 */ 0, 0, 0, 0, 0, 0, 0, 0, 96 /* 192 */ 0, 0, 0, 0, 0, 0, 0, 0, 97 /* 200 */ 0, 0, 0, 0, 0, 0, 0, 0, 98 /* 208 */ 0, 0, 0, 0, 0, 0, 0, 0, 99 /* 216 */ 0, 0, 0, 0, 0, 0, 0, 0, 100 /* 224 */ 0, 0, 0, 0, 0, 0, 0, 0, 101 /* 232 */ 0, 0, 0, 0, 0, 0, 0, 0, 102 /* 240 */ 0, 0, 0, 0, 0, 0, 0, 0, 103 /* 248 */ 0, 0, 0, 0 104 }; 105 106 /* 107 * DEBUG (or KD_DEBUG for just this module) turns on a flag called 108 * kb8042_enable_debug_hotkey. If kb8042_enable_debug_hotkey is true, 109 * then the following hotkeys are enabled: 110 * F10 - turn on debugging "normal" translations 111 * F9 - turn on debugging "getchar" translations 112 * F8 - turn on "low level" debugging 113 * F7 - turn on terse press/release debugging 114 * F1 - turn off all debugging 115 * The default value for kb8042_enable_debug_hotkey is false, disabling 116 * these hotkeys. 117 */ 118 119 #if defined(DEBUG) || defined(lint) 120 #define KD_DEBUG 121 #endif 122 123 #ifdef KD_DEBUG 124 boolean_t kb8042_enable_debug_hotkey = B_FALSE; 125 boolean_t kb8042_debug = B_FALSE; 126 boolean_t kb8042_getchar_debug = B_FALSE; 127 boolean_t kb8042_low_level_debug = B_FALSE; 128 boolean_t kb8042_pressrelease_debug = B_FALSE; 129 static void kb8042_debug_hotkey(int scancode); 130 #endif 131 132 #ifdef __sparc 133 #define USECS_PER_WAIT 100 134 #define MAX_WAIT_USECS 100000 /* in usecs = 100 ms */ 135 #define MIN_DELAY_USECS USECS_PER_WAIT 136 137 boolean_t kb8042_warn_unknown_scanset = B_TRUE; 138 int kb8042_default_scanset = 2; 139 140 #endif 141 142 enum state_return { STATE_NORMAL, STATE_INTERNAL }; 143 144 static void kb8042_init(struct kb8042 *kb8042, boolean_t from_resume); 145 static uint_t kb8042_intr(caddr_t arg); 146 static void kb8042_wait_poweron(struct kb8042 *kb8042); 147 static void kb8042_start_state_machine(struct kb8042 *, boolean_t); 148 static enum state_return kb8042_state_machine(struct kb8042 *, int, boolean_t); 149 static void kb8042_send_to_keyboard(struct kb8042 *, int, boolean_t); 150 static int kb8042_xlate_leds(int); 151 static void kb8042_setled(struct kb8042 *, int led_state, boolean_t polled); 152 static void kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state); 153 static void kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state); 154 static boolean_t kb8042_polled_keycheck( 155 struct kbtrans_hardware *hw, int *key, 156 enum keystate *state); 157 static void kb8042_get_initial_leds(struct kb8042 *, int *, int *); 158 static boolean_t kb8042_autorepeat_detect(struct kb8042 *kb8042, int key_pos, 159 enum keystate state); 160 static void kb8042_type4_cmd(struct kb8042 *kb8042, int cmd); 161 static void kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *, mblk_t *); 162 static void kb8042_iocdatamsg(queue_t *, mblk_t *); 163 static void kb8042_process_key(struct kb8042 *, kbtrans_key_t, enum keystate); 164 static int kb8042_polled_ischar(cons_polledio_arg_t arg); 165 static int kb8042_polled_getchar(cons_polledio_arg_t arg); 166 static void kb8042_cleanup(struct kb8042 *kb8042); 167 168 static struct kbtrans_callbacks kb8042_callbacks = { 169 kb8042_streams_setled, 170 kb8042_polled_setled, 171 kb8042_polled_keycheck, 172 }; 173 174 extern struct keyboard keyindex_pc; 175 176 #define DRIVER_NAME(dip) ddi_driver_name(dip) 177 178 static char module_name[] = "kb8042"; 179 180 static int kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, 181 cred_t *credp); 182 static int kb8042_close(queue_t *qp, int flag, cred_t *credp); 183 static int kb8042_wsrv(); 184 185 struct module_info kb8042_sinfo = { 186 42, /* Module ID */ 187 module_name, 188 0, 32, /* Minimum and maximum packet sizes */ 189 256, 128 /* High and low water marks */ 190 }; 191 192 static struct qinit kb8042_rinit = { 193 NULL, NULL, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 194 }; 195 196 static struct qinit kb8042_winit = { 197 putq, kb8042_wsrv, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 198 }; 199 200 struct streamtab 201 kb8042_str_info = { &kb8042_rinit, &kb8042_winit, NULL, NULL }; 202 203 struct kb8042 Kdws = {0}; 204 static dev_info_t *kb8042_dip = NULL; 205 206 static int kb8042_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 207 void **result); 208 static int kb8042_attach(dev_info_t *, ddi_attach_cmd_t); 209 static int kb8042_detach(dev_info_t *, ddi_detach_cmd_t); 210 211 static struct cb_ops cb_kb8042_ops = { 212 nulldev, /* cb_open */ 213 nulldev, /* cb_close */ 214 nodev, /* cb_strategy */ 215 nodev, /* cb_print */ 216 nodev, /* cb_dump */ 217 nodev, /* cb_read */ 218 nodev, /* cb_write */ 219 nodev, /* cb_ioctl */ 220 nodev, /* cb_devmap */ 221 nodev, /* cb_mmap */ 222 nodev, /* cb_segmap */ 223 nochpoll, /* cb_chpoll */ 224 ddi_prop_op, /* cb_prop_op */ 225 &kb8042_str_info, /* cb_stream */ 226 D_MP 227 }; 228 229 struct dev_ops kb8042_ops = { 230 DEVO_REV, /* devo_rev */ 231 0, /* devo_refcnt */ 232 kb8042_getinfo, /* devo_getinfo */ 233 nulldev, /* devo_identify */ 234 nulldev, /* devo_probe */ 235 kb8042_attach, /* devo_attach */ 236 kb8042_detach, /* devo_detach */ 237 nodev, /* devo_reset */ 238 &cb_kb8042_ops, /* devo_cb_ops */ 239 (struct bus_ops *)NULL /* devo_bus_ops */ 240 }; 241 242 243 /* 244 * This is the loadable module wrapper. 245 */ 246 #include <sys/modctl.h> 247 248 /* 249 * Module linkage information for the kernel. 250 */ 251 static struct modldrv modldrv = { 252 &mod_driverops, /* Type of module. This one is a driver */ 253 "PS/2 Keyboard %I%, %E%", 254 &kb8042_ops, /* driver ops */ 255 }; 256 257 static struct modlinkage modlinkage = { 258 MODREV_1, 259 (void *) &modldrv, 260 NULL 261 }; 262 263 int 264 _init(void) 265 { 266 int rv; 267 268 rv = mod_install(&modlinkage); 269 return (rv); 270 } 271 272 273 int 274 _fini(void) 275 { 276 return (mod_remove(&modlinkage)); 277 } 278 279 int 280 _info(struct modinfo *modinfop) 281 { 282 return (mod_info(&modlinkage, modinfop)); 283 } 284 285 #ifdef __sparc 286 static boolean_t 287 kb8042_is_input_avail(struct kb8042 *kb8042, int timeout_usec, boolean_t polled) 288 { 289 int i; 290 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_AVAIL : 291 I8042_INT_INPUT_AVAIL; 292 int reps = timeout_usec / USECS_PER_WAIT; 293 294 for (i = 0; i < reps; i++) { 295 if (ddi_get8(kb8042->handle, kb8042->addr + port) != 0) 296 return (B_TRUE); 297 298 if (i < (reps - 1)) 299 drv_usecwait(USECS_PER_WAIT); 300 } 301 return (B_FALSE); 302 } 303 304 static void 305 kb8042_clear_input_buffer(struct kb8042 *kb8042, boolean_t polled) 306 { 307 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_DATA : 308 I8042_INT_INPUT_DATA; 309 310 while (kb8042_is_input_avail(kb8042, MIN_DELAY_USECS, polled)) { 311 (void) ddi_get8(kb8042->handle, kb8042->addr + port); 312 } 313 } 314 315 static boolean_t 316 kb8042_send_and_expect(struct kb8042 *kb8042, uint8_t send, uint8_t expect, 317 boolean_t polled, int timeout, int *error, uint8_t *got) 318 { 319 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_DATA : 320 I8042_INT_INPUT_DATA; 321 uint8_t datab; 322 int err; 323 boolean_t rval; 324 325 kb8042_send_to_keyboard(kb8042, send, polled); 326 327 if (kb8042_is_input_avail(kb8042, timeout, polled)) { 328 err = 0; 329 datab = ddi_get8(kb8042->handle, kb8042->addr + port); 330 rval = ((datab == expect) ? B_TRUE : B_FALSE); 331 } else { 332 err = EAGAIN; 333 rval = B_FALSE; 334 } 335 336 if (error != NULL) 337 *error = err; 338 if (got != NULL) 339 *got = datab; 340 return (rval); 341 } 342 343 static const char * 344 kb8042_error_string(int errcode) 345 { 346 switch (errcode) { 347 case EAGAIN: 348 return ("Timed out"); 349 default: 350 return ("Unknown error"); 351 } 352 } 353 354 static int 355 kb8042_read_scanset(struct kb8042 *kb8042, boolean_t polled) 356 { 357 int scanset = -1; 358 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_DATA : 359 I8042_INT_INPUT_DATA; 360 int err; 361 uint8_t got; 362 363 kb8042_clear_input_buffer(kb8042, B_TRUE); 364 365 /* 366 * Send a "change scan code set" command to the keyboard. 367 * It should respond with an ACK. 368 */ 369 if (kb8042_send_and_expect(kb8042, KB_SET_SCAN, KB_ACK, polled, 370 MAX_WAIT_USECS, &err, &got) != B_TRUE) { 371 goto fail_read_scanset; 372 } 373 374 /* 375 * Send a 0. The keyboard should ACK the 0, then it send the scan code 376 * set in use. 377 */ 378 if (kb8042_send_and_expect(kb8042, 0, KB_ACK, polled, 379 MAX_WAIT_USECS, &err, &got) != B_TRUE) { 380 goto fail_read_scanset; 381 } 382 383 /* 384 * The next input byte from the keyboard should be the scan code 385 * set in use, though some keyboards like to send a few more acks 386 * just for fun, so blow past those to get the keyboard scan code. 387 */ 388 while (kb8042_is_input_avail(kb8042, MAX_WAIT_USECS, B_TRUE) && 389 (scanset = ddi_get8(kb8042->handle, kb8042->addr + port)) 390 == KB_ACK) 391 ; 392 393 #ifdef KD_DEBUG 394 cmn_err(CE_NOTE, "!Scan code set from keyboard is `%d'.", 395 scanset); 396 #endif 397 398 return (scanset); 399 400 fail_read_scanset: 401 #ifdef KD_DEBUG 402 if (err == 0) 403 cmn_err(CE_NOTE, "Could not read current scan set from " 404 "keyboard: %s. (Expected 0x%x, but got 0x%x).", 405 kb8042_error_string(err), KB_ACK, got); 406 else 407 cmn_err(CE_NOTE, "Could not read current scan set from " 408 "keyboard: %s.", kb8042_error_string(err)); 409 #endif 410 return (-1); 411 } 412 #endif 413 414 static int 415 kb8042_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 416 { 417 int rc; 418 int scanset; 419 int leds; 420 421 struct kb8042 *kb8042 = &Kdws; 422 static ddi_device_acc_attr_t attr = { 423 DDI_DEVICE_ATTR_V0, 424 DDI_NEVERSWAP_ACC, 425 DDI_STRICTORDER_ACC, 426 }; 427 428 switch (cmd) { 429 case DDI_RESUME: 430 leds = kb8042->leds.commanded; 431 kb8042->w_init = 0; 432 kb8042_init(kb8042, B_TRUE); 433 kb8042_setled(kb8042, leds, B_FALSE); 434 mutex_enter(&kb8042->w_hw_mutex); 435 kb8042->suspended = B_FALSE; 436 if (kb8042->w_qp != NULL) { 437 enableok(WR(kb8042->w_qp)); 438 qenable(WR(kb8042->w_qp)); 439 } 440 cv_broadcast(&kb8042->suspend_cv); 441 mutex_exit(&kb8042->w_hw_mutex); 442 return (DDI_SUCCESS); 443 444 case DDI_ATTACH: 445 if (kb8042_dip != NULL) 446 return (DDI_FAILURE); 447 /* The rest of the function is for attach */ 448 break; 449 450 default: 451 return (DDI_FAILURE); 452 } 453 454 kb8042->debugger.mod1 = 58; /* Left Ctrl */ 455 kb8042->debugger.mod2 = 60; /* Left Alt */ 456 kb8042->debugger.trigger = 33; /* D */ 457 kb8042->debugger.mod1_down = B_FALSE; 458 kb8042->debugger.mod2_down = B_FALSE; 459 kb8042->debugger.enabled = B_FALSE; 460 461 kb8042_dip = devi; 462 kb8042->init_state = KB8042_UNINITIALIZED; 463 464 kb8042->polled_synthetic_release_pending = B_FALSE; 465 466 if (ddi_create_minor_node(devi, module_name, S_IFCHR, 0, 467 DDI_NT_KEYBOARD, 0) == DDI_FAILURE) { 468 goto failure; 469 } 470 471 kb8042->init_state |= KB8042_MINOR_NODE_CREATED; 472 473 rc = ddi_regs_map_setup(devi, 0, (caddr_t *)&kb8042->addr, 474 (offset_t)0, (offset_t)0, &attr, &kb8042->handle); 475 if (rc != DDI_SUCCESS) { 476 #if defined(KD_DEBUG) 477 cmn_err(CE_WARN, "kb8042_attach: can't map registers"); 478 #endif 479 goto failure; 480 } 481 482 kb8042->init_state |= KB8042_REGS_MAPPED; 483 484 if (ddi_get_iblock_cookie(devi, 0, &kb8042->w_iblock) != 485 DDI_SUCCESS) { 486 cmn_err(CE_WARN, "kb8042_attach: Can't get iblock cookie"); 487 goto failure; 488 } 489 490 mutex_init(&kb8042->w_hw_mutex, NULL, MUTEX_DRIVER, kb8042->w_iblock); 491 cv_init(&kb8042->ops_cv, NULL, CV_DRIVER, NULL); 492 cv_init(&kb8042->suspend_cv, NULL, CV_DRIVER, NULL); 493 kb8042->init_state |= KB8042_HW_MUTEX_INITTED; 494 495 kb8042_init(kb8042, B_FALSE); 496 497 #ifdef __sparc 498 /* Detect the scan code set currently in use */ 499 scanset = kb8042_read_scanset(kb8042, B_TRUE); 500 501 if (scanset < 0 && kb8042_warn_unknown_scanset) { 502 503 cmn_err(CE_WARN, "Cannot determine keyboard scan code set "); 504 cmn_err(CE_CONT, "(is the keyboard plugged in?). "); 505 cmn_err(CE_CONT, "Defaulting to scan code set %d. If the " 506 "keyboard does not ", kb8042_default_scanset); 507 cmn_err(CE_CONT, "work properly, add " 508 "`set kb8042:kb8042_default_scanset=%d' to /etc/system ", 509 (kb8042_default_scanset == 1) ? 2 : 1); 510 cmn_err(CE_CONT, "(via network or with a USB keyboard) and " 511 "restart the system. If you "); 512 cmn_err(CE_CONT, "do not want to see this message in the " 513 "future, add "); 514 cmn_err(CE_CONT, "`set kb8042:kb8042_warn_unknown_scanset=0' " 515 "to /etc/system.\n"); 516 517 /* Use the default scan code set. */ 518 scanset = kb8042_default_scanset; 519 } 520 #else 521 /* x86 systems use scan code set 1 -- no detection required */ 522 scanset = 1; 523 #endif 524 if (KeyboardConvertScan_init(kb8042, scanset) != DDI_SUCCESS) { 525 cmn_err(CE_WARN, "Cannot initialize keyboard scan converter: " 526 "Unknown scan code set `%d'.", scanset); 527 /* Scan code set is not supported */ 528 goto failure; 529 } 530 531 /* 532 * Turn on interrupts... 533 */ 534 if (ddi_add_intr(devi, 0, 535 &kb8042->w_iblock, (ddi_idevice_cookie_t *)NULL, 536 kb8042_intr, (caddr_t)kb8042) != DDI_SUCCESS) { 537 cmn_err(CE_WARN, "kb8042_attach: cannot add interrupt"); 538 goto failure; 539 } 540 541 kb8042->init_state |= KB8042_INTR_ADDED; 542 543 ddi_report_dev(devi); 544 545 #ifdef KD_DEBUG 546 cmn_err(CE_CONT, "?%s #%d: version %s\n", 547 DRIVER_NAME(devi), ddi_get_instance(devi), "%I% (%E%)"); 548 #endif 549 550 return (DDI_SUCCESS); 551 552 failure: 553 kb8042_cleanup(kb8042); 554 return (DDI_FAILURE); 555 } 556 557 static int 558 kb8042_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 559 { 560 struct kb8042 *kb8042 = &Kdws; 561 562 switch (cmd) { 563 case DDI_SUSPEND: 564 mutex_enter(&kb8042->w_hw_mutex); 565 ASSERT(kb8042->ops >= 0); 566 while (kb8042->ops > 0) 567 cv_wait(&kb8042->ops_cv, &kb8042->w_hw_mutex); 568 kb8042->suspended = B_TRUE; 569 mutex_exit(&kb8042->w_hw_mutex); 570 return (DDI_SUCCESS); 571 572 case DDI_DETACH: 573 /* If someone has a stream open, fail to detach */ 574 if (kb8042->w_qp != NULL) 575 return (DDI_FAILURE); 576 577 ASSERT(kb8042_dip == dip); 578 579 kb8042_cleanup(kb8042); 580 581 return (DDI_SUCCESS); 582 583 default: 584 return (DDI_FAILURE); 585 } 586 } 587 588 589 /*ARGSUSED*/ 590 static int 591 kb8042_getinfo( 592 dev_info_t *dip, 593 ddi_info_cmd_t infocmd, 594 void *arg, 595 void **result) 596 { 597 register int error; 598 599 switch (infocmd) { 600 case DDI_INFO_DEVT2DEVINFO: 601 if (kb8042_dip == NULL) { 602 error = DDI_FAILURE; 603 } else { 604 *result = (void *) kb8042_dip; 605 error = DDI_SUCCESS; 606 } 607 break; 608 case DDI_INFO_DEVT2INSTANCE: 609 *result = (void *)0; 610 error = DDI_SUCCESS; 611 break; 612 default: 613 error = DDI_FAILURE; 614 break; 615 } 616 return (error); 617 } 618 619 static void 620 kb8042_cleanup(struct kb8042 *kb8042) 621 { 622 ASSERT(kb8042_dip != NULL); 623 624 if (kb8042->init_state & KB8042_HW_MUTEX_INITTED) { 625 cv_destroy(&kb8042->suspend_cv); 626 cv_destroy(&kb8042->ops_cv); 627 mutex_destroy(&kb8042->w_hw_mutex); 628 } 629 630 if (kb8042->init_state & KB8042_INTR_ADDED) 631 ddi_remove_intr(kb8042_dip, 0, kb8042->w_iblock); 632 633 if (kb8042->init_state & KB8042_REGS_MAPPED) 634 ddi_regs_map_free(&kb8042->handle); 635 636 if (kb8042->init_state & KB8042_MINOR_NODE_CREATED) 637 ddi_remove_minor_node(kb8042_dip, NULL); 638 639 kb8042->init_state = KB8042_UNINITIALIZED; 640 kb8042_dip = NULL; 641 } 642 643 static void 644 kb8042_init(struct kb8042 *kb8042, boolean_t from_resume) 645 { 646 if (kb8042->w_init) 647 return; 648 649 if (!from_resume) { 650 kb8042->w_kblayout = 0; /* Default to US */ 651 kb8042->w_qp = (queue_t *)NULL; 652 kb8042->simulated_kbd_type = KB_PC; 653 kb8042->leds.commanded = -1; /* Unknown initial state */ 654 kb8042->leds.desired = -1; /* Unknown initial state */ 655 } 656 657 kb8042_wait_poweron(kb8042); 658 659 kb8042->kb_old_key_pos = 0; 660 661 /* Set up the command state machine and start it running. */ 662 kb8042->command_state = KB_COMMAND_STATE_WAIT; 663 kb8042_send_to_keyboard(kb8042, KB_ENABLE, B_FALSE); 664 665 kb8042->w_init++; 666 667 (void) drv_setparm(SYSRINT, 1); /* reset keyboard interrupts */ 668 } 669 670 /*ARGSUSED2*/ 671 static int 672 kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, cred_t *credp) 673 { 674 struct kb8042 *kb8042; 675 int err; 676 int initial_leds; 677 int initial_led_mask; 678 679 kb8042 = &Kdws; 680 681 mutex_enter(&kb8042->w_hw_mutex); 682 while (kb8042->suspended) { 683 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 684 0) { 685 mutex_exit(&kb8042->w_hw_mutex); 686 return (EINTR); 687 } 688 } 689 690 kb8042->w_dev = *devp; 691 692 if (qp->q_ptr) { 693 mutex_exit(&kb8042->w_hw_mutex); 694 return (0); 695 } 696 qp->q_ptr = (caddr_t)kb8042; 697 WR(qp)->q_ptr = qp->q_ptr; 698 if (!kb8042->w_qp) 699 kb8042->w_qp = qp; 700 701 ASSERT(kb8042->ops >= 0); 702 kb8042->ops++; 703 mutex_exit(&kb8042->w_hw_mutex); 704 705 kb8042_get_initial_leds(kb8042, &initial_leds, &initial_led_mask); 706 err = kbtrans_streams_init(qp, sflag, credp, 707 (struct kbtrans_hardware *)kb8042, &kb8042_callbacks, 708 &kb8042->hw_kbtrans, 709 initial_leds, initial_led_mask); 710 if (err != 0) 711 return (err); 712 713 kbtrans_streams_set_keyboard(kb8042->hw_kbtrans, KB_PC, &keyindex_pc); 714 715 kb8042->polledio.cons_polledio_version = CONSPOLLEDIO_V1; 716 kb8042->polledio.cons_polledio_argument = 717 (cons_polledio_arg_t)kb8042; 718 kb8042->polledio.cons_polledio_putchar = NULL; 719 kb8042->polledio.cons_polledio_getchar = 720 (int (*)(cons_polledio_arg_t))kb8042_polled_getchar; 721 kb8042->polledio.cons_polledio_ischar = 722 (boolean_t (*)(cons_polledio_arg_t))kb8042_polled_ischar; 723 kb8042->polledio.cons_polledio_enter = NULL; 724 kb8042->polledio.cons_polledio_exit = NULL; 725 kb8042->polledio.cons_polledio_setled = 726 (void (*)(cons_polledio_arg_t, int))kb8042_polled_setled; 727 kb8042->polledio.cons_polledio_keycheck = 728 (boolean_t (*)(cons_polledio_arg_t, int *, 729 enum keystate *))kb8042_polled_keycheck; 730 731 qprocson(qp); 732 733 kbtrans_streams_enable(kb8042->hw_kbtrans); 734 735 mutex_enter(&kb8042->w_hw_mutex); 736 ASSERT(kb8042->ops > 0); 737 kb8042->ops--; 738 if (kb8042->ops == 0) 739 cv_broadcast(&kb8042->ops_cv); 740 mutex_exit(&kb8042->w_hw_mutex); 741 742 return (0); 743 } 744 745 /*ARGSUSED1*/ 746 static int 747 kb8042_close(queue_t *qp, int flag, cred_t *credp) 748 { 749 struct kb8042 *kb8042; 750 751 /* If a beep is in progress, stop that */ 752 (void) beeper_off(); 753 754 kb8042 = (struct kb8042 *)qp->q_ptr; 755 756 mutex_enter(&kb8042->w_hw_mutex); 757 while (kb8042->suspended) { 758 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 759 0) { 760 mutex_exit(&kb8042->w_hw_mutex); 761 return (EINTR); 762 } 763 } 764 765 ASSERT(kb8042->ops >= 0); 766 kb8042->ops++; 767 mutex_exit(&kb8042->w_hw_mutex); 768 769 (void) kbtrans_streams_fini(kb8042->hw_kbtrans); 770 771 kb8042->w_qp = (queue_t *)NULL; 772 qprocsoff(qp); 773 774 mutex_enter(&kb8042->w_hw_mutex); 775 ASSERT(kb8042->ops > 0); 776 kb8042->ops--; 777 if (kb8042->ops == 0) 778 cv_broadcast(&kb8042->ops_cv); 779 mutex_exit(&kb8042->w_hw_mutex); 780 781 return (0); 782 } 783 784 static int 785 kb8042_wsrv(queue_t *qp) 786 { 787 struct kb8042 *kb8042; 788 789 mblk_t *mp; 790 boolean_t suspended; 791 792 kb8042 = (struct kb8042 *)qp->q_ptr; 793 794 mutex_enter(&kb8042->w_hw_mutex); 795 suspended = kb8042->suspended; 796 ASSERT(kb8042->ops >= 0); 797 if (!suspended) 798 kb8042->ops++; 799 mutex_exit(&kb8042->w_hw_mutex); 800 801 #ifdef NO_KB_DEBUG 802 while (!suspended && (mp = getq(qp)) != NULL) { 803 #else 804 /* 805 * Not taking keyboard input while suspending can make debugging 806 * difficult. However, we still do the ops counting so that we 807 * don't suspend at a bad time. 808 */ 809 while ((mp = getq(qp))) { 810 #endif 811 switch (kbtrans_streams_message(kb8042->hw_kbtrans, mp)) { 812 case KBTRANS_MESSAGE_HANDLED: 813 continue; 814 case KBTRANS_MESSAGE_NOT_HANDLED: 815 break; 816 } 817 switch (mp->b_datap->db_type) { 818 case M_IOCTL: 819 kb8042_ioctlmsg(kb8042, qp, mp); 820 continue; 821 case M_IOCDATA: 822 kb8042_iocdatamsg(qp, mp); 823 continue; 824 case M_DELAY: 825 case M_STARTI: 826 case M_STOPI: 827 case M_READ: /* ignore, no buffered data */ 828 freemsg(mp); 829 continue; 830 case M_FLUSH: 831 *mp->b_rptr &= ~FLUSHW; 832 if (*mp->b_rptr & FLUSHR) 833 qreply(qp, mp); 834 else 835 freemsg(mp); 836 continue; 837 default: 838 cmn_err(CE_NOTE, "kb8042_wsrv: bad msg %x", 839 mp->b_datap->db_type); 840 freemsg(mp); 841 continue; 842 } 843 } 844 845 mutex_enter(&kb8042->w_hw_mutex); 846 if (!suspended) { 847 ASSERT(kb8042->ops > 0); 848 kb8042->ops--; 849 if (kb8042->ops == 0) 850 cv_broadcast(&kb8042->ops_cv); 851 } 852 mutex_exit(&kb8042->w_hw_mutex); 853 854 return (0); 855 } 856 857 static void 858 kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *qp, mblk_t *mp) 859 { 860 struct iocblk *iocp; 861 mblk_t *datap; 862 int error; 863 int tmp; 864 int cycles; 865 int frequency; 866 int msecs; 867 868 iocp = (struct iocblk *)mp->b_rptr; 869 870 switch (iocp->ioc_cmd) { 871 872 case CONSOPENPOLLEDIO: 873 error = miocpullup(mp, sizeof (struct cons_polledio *)); 874 if (error != 0) { 875 miocnak(qp, mp, 0, error); 876 return; 877 } 878 879 /* 880 * We are given an appropriate-sized data block, 881 * and return a pointer to our structure in it. 882 */ 883 *(struct cons_polledio **)mp->b_cont->b_rptr = 884 &kb8042->polledio; 885 mp->b_datap->db_type = M_IOCACK; 886 iocp->ioc_error = 0; 887 qreply(qp, mp); 888 break; 889 890 case CONSCLOSEPOLLEDIO: 891 miocack(qp, mp, 0, 0); 892 break; 893 894 case CONSSETABORTENABLE: 895 if (iocp->ioc_count != TRANSPARENT) { 896 miocnak(qp, mp, 0, EINVAL); 897 return; 898 } 899 900 kb8042->debugger.enabled = *(intptr_t *)mp->b_cont->b_rptr; 901 miocack(qp, mp, 0, 0); 902 break; 903 904 /* 905 * Valid only in TR_UNTRANS_MODE mode. 906 */ 907 case CONSSETKBDTYPE: 908 error = miocpullup(mp, sizeof (int)); 909 if (error != 0) { 910 miocnak(qp, mp, 0, error); 911 return; 912 } 913 tmp = *(int *)mp->b_cont->b_rptr; 914 if (tmp != KB_PC && tmp != KB_USB) { 915 miocnak(qp, mp, 0, EINVAL); 916 break; 917 } 918 kb8042->simulated_kbd_type = tmp; 919 miocack(qp, mp, 0, 0); 920 break; 921 922 case KIOCLAYOUT: 923 if (kb8042->w_kblayout == -1) { 924 miocnak(qp, mp, 0, EINVAL); 925 return; 926 } 927 928 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL) { 929 miocnak(qp, mp, 0, ENOMEM); 930 return; 931 } 932 933 if (kb8042->simulated_kbd_type == KB_USB) 934 *(int *)datap->b_wptr = KBTRANS_USBKB_DEFAULT_LAYOUT; 935 else 936 *(int *)datap->b_wptr = kb8042->w_kblayout; 937 938 datap->b_wptr += sizeof (int); 939 if (mp->b_cont) 940 freemsg(mp->b_cont); 941 mp->b_cont = datap; 942 iocp->ioc_count = sizeof (int); 943 mp->b_datap->db_type = M_IOCACK; 944 iocp->ioc_error = 0; 945 qreply(qp, mp); 946 break; 947 948 case KIOCSLAYOUT: 949 if (iocp->ioc_count != TRANSPARENT) { 950 miocnak(qp, mp, 0, EINVAL); 951 return; 952 } 953 954 kb8042->w_kblayout = *(intptr_t *)mp->b_cont->b_rptr; 955 miocack(qp, mp, 0, 0); 956 break; 957 958 case KIOCCMD: 959 error = miocpullup(mp, sizeof (int)); 960 if (error != 0) { 961 miocnak(qp, mp, 0, error); 962 return; 963 } 964 965 kb8042_type4_cmd(kb8042, *(int *)mp->b_cont->b_rptr); 966 miocack(qp, mp, 0, 0); 967 break; 968 969 case KIOCMKTONE: 970 if (iocp->ioc_count != TRANSPARENT) { 971 miocnak(qp, mp, 0, EINVAL); 972 return; 973 } 974 975 tmp = (int)(*(intptr_t *)mp->b_cont->b_rptr); 976 cycles = tmp & 0xffff; 977 msecs = (tmp >> 16) & 0xffff; 978 979 if (cycles == 0) 980 frequency = UINT16_MAX; 981 else if (cycles == UINT16_MAX) 982 frequency = 0; 983 else { 984 frequency = (PIT_HZ + cycles / 2) / cycles; 985 if (frequency > UINT16_MAX) 986 frequency = UINT16_MAX; 987 } 988 989 error = beep_mktone(frequency, msecs); 990 if (error != 0) 991 miocnak(qp, mp, 0, error); 992 else 993 miocack(qp, mp, 0, 0); 994 break; 995 996 default: 997 #ifdef DEBUG1 998 cmn_err(CE_NOTE, "!kb8042_ioctlmsg %x", iocp->ioc_cmd); 999 #endif 1000 miocnak(qp, mp, 0, EINVAL); 1001 return; 1002 } 1003 } 1004 1005 /* 1006 * Process a byte received from the keyboard 1007 */ 1008 static void 1009 kb8042_received_byte( 1010 struct kb8042 *kb8042, 1011 int scancode) /* raw scan code */ 1012 { 1013 boolean_t legit; /* is this a legit key pos'n? */ 1014 int key_pos = -1; 1015 enum keystate state; 1016 boolean_t synthetic_release_needed; 1017 1018 #ifdef KD_DEBUG 1019 kb8042_debug_hotkey(scancode); 1020 #endif 1021 1022 if (!kb8042->w_init) /* can't do anything anyway */ 1023 return; 1024 1025 legit = KeyboardConvertScan(kb8042, scancode, &key_pos, &state, 1026 &synthetic_release_needed); 1027 1028 if (legit == 0) { 1029 /* Eaten by translation */ 1030 #ifdef KD_DEBUG 1031 if (kb8042_debug) 1032 prom_printf("kb8042_intr: 0x%x -> ignored\n", scancode); 1033 #endif 1034 return; 1035 } 1036 1037 #ifdef KD_DEBUG 1038 if (kb8042_debug) { 1039 prom_printf("kb8042_intr: 0x%x -> %s %d", 1040 scancode, 1041 state == KEY_RELEASED ? "released" : "pressed", 1042 key_pos); 1043 } 1044 #endif 1045 1046 /* 1047 * Don't know if we want this permanently, but it seems interesting 1048 * for the moment. 1049 */ 1050 if (key_pos == kb8042->debugger.mod1) { 1051 #ifdef KD_DEBUG 1052 if (kb8042_debug) 1053 prom_printf(" -> debug mod1"); 1054 #endif 1055 kb8042->debugger.mod1_down = (state == KEY_PRESSED); 1056 } 1057 if (key_pos == kb8042->debugger.mod2) { 1058 #ifdef KD_DEBUG 1059 if (kb8042_debug) 1060 prom_printf(" -> debug mod2"); 1061 #endif 1062 kb8042->debugger.mod2_down = (state == KEY_PRESSED); 1063 } 1064 if (kb8042->debugger.enabled && 1065 key_pos == kb8042->debugger.trigger && 1066 kb8042->debugger.mod1_down && 1067 kb8042->debugger.mod2_down) { 1068 #ifdef KD_DEBUG 1069 if (kb8042_debug) 1070 prom_printf(" -> debugger\n"); 1071 #endif 1072 /* 1073 * Require new presses of the modifiers. 1074 */ 1075 kb8042->debugger.mod1_down = B_FALSE; 1076 kb8042->debugger.mod2_down = B_FALSE; 1077 abort_sequence_enter(NULL); 1078 return; 1079 } 1080 1081 /* 1082 * If there's no queue above us - as can happen if we've been 1083 * attached but not opened - drop the keystroke. 1084 * Note that we do this here instead of above so that 1085 * Ctrl-Alt-D still works. 1086 */ 1087 if (kb8042->w_qp == NULL) { 1088 #ifdef KD_DEBUG 1089 if (kb8042_debug) 1090 prom_printf(" -> nobody home\n"); 1091 #endif 1092 return; 1093 } 1094 1095 /* 1096 * This is to filter out auto repeat since it can't be 1097 * turned off at the hardware. (Yeah, yeah, PS/2 keyboards 1098 * can. Don't know whether they've taken over the world. 1099 * Don't think so.) 1100 */ 1101 if (kb8042_autorepeat_detect(kb8042, key_pos, state)) { 1102 #ifdef KD_DEBUG 1103 if (kb8042_debug) 1104 prom_printf(" -> autorepeat ignored\n"); 1105 #endif 1106 return; 1107 } 1108 1109 #ifdef KD_DEBUG 1110 if (kb8042_debug) 1111 prom_printf(" -> OK\n"); 1112 #endif 1113 1114 #if defined(KD_DEBUG) 1115 if (kb8042_pressrelease_debug) { 1116 prom_printf(" %s%d ", 1117 state == KEY_PRESSED ? "+" : "-", 1118 key_pos); 1119 } 1120 #endif 1121 1122 kb8042_process_key(kb8042, key_pos, state); 1123 1124 /* 1125 * This is a total hack. For some stupid reason, the two additional 1126 * keys on Korean keyboards (Hangul and Hangul/Hanja) report press 1127 * only. We synthesize a release immediately. 1128 */ 1129 if (synthetic_release_needed) { 1130 #if defined(KD_DEBUG) 1131 if (kb8042_debug) 1132 prom_printf("synthetic release %d\n", key_pos); 1133 if (kb8042_pressrelease_debug) 1134 prom_printf(" -%d(s) ", key_pos); 1135 #endif 1136 (void) kb8042_autorepeat_detect(kb8042, key_pos, KEY_RELEASED); 1137 kb8042_process_key(kb8042, key_pos, state); 1138 } 1139 } 1140 1141 1142 static void 1143 kb8042_process_key(struct kb8042 *kb8042, kbtrans_key_t key_pos, 1144 enum keystate state) 1145 { 1146 kbtrans_key_t key; 1147 1148 ASSERT(key_pos >= 0 && key_pos <= 255); 1149 if (kb8042->simulated_kbd_type == KB_PC) { 1150 kbtrans_streams_key(kb8042->hw_kbtrans, key_pos, state); 1151 } else if (kb8042->simulated_kbd_type == KB_USB) { 1152 key = keytab_pc2usb[key_pos]; 1153 if (key != 0) { 1154 kbtrans_streams_key(kb8042->hw_kbtrans, key, state); 1155 } 1156 } 1157 } 1158 1159 /* 1160 * Called from interrupt handler when keyboard interrupt occurs. 1161 */ 1162 static uint_t 1163 kb8042_intr(caddr_t arg) 1164 { 1165 uchar_t scancode; /* raw scan code */ 1166 int rc; 1167 struct kb8042 *kb8042 = (struct kb8042 *)arg; 1168 1169 rc = DDI_INTR_UNCLAIMED; 1170 1171 if (kb8042->init_state == KB8042_UNINITIALIZED) 1172 return (DDI_INTR_UNCLAIMED); 1173 1174 /* don't care if drv_setparm succeeds */ 1175 (void) drv_setparm(SYSRINT, 1); 1176 1177 while (ddi_get8(kb8042->handle, kb8042->addr + I8042_INT_INPUT_AVAIL) 1178 != 0) { 1179 rc = DDI_INTR_CLAIMED; 1180 1181 scancode = ddi_get8(kb8042->handle, 1182 kb8042->addr + I8042_INT_INPUT_DATA); 1183 1184 #if defined(KD_DEBUG) 1185 if (kb8042_low_level_debug) 1186 prom_printf(" <K:%x ", scancode); 1187 #endif 1188 1189 mutex_enter(&kb8042->w_hw_mutex); 1190 1191 if (kb8042_state_machine(kb8042, scancode, B_FALSE) != 1192 STATE_NORMAL) { 1193 mutex_exit(&kb8042->w_hw_mutex); 1194 continue; 1195 } 1196 1197 1198 mutex_exit(&kb8042->w_hw_mutex); 1199 1200 kb8042_received_byte(kb8042, scancode); 1201 } 1202 1203 return (rc); 1204 } 1205 1206 static void 1207 kb8042_iocdatamsg(queue_t *qp, mblk_t *mp) 1208 { 1209 struct copyresp *csp; 1210 1211 csp = (struct copyresp *)mp->b_rptr; 1212 if (csp->cp_rval) { 1213 freemsg(mp); 1214 return; 1215 } 1216 1217 switch (csp->cp_cmd) { 1218 default: 1219 miocack(qp, mp, 0, 0); 1220 break; 1221 } 1222 } 1223 1224 static boolean_t 1225 kb8042_polled_keycheck( 1226 struct kbtrans_hardware *hw, 1227 int *key, 1228 enum keystate *state) 1229 { 1230 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1231 int scancode; 1232 boolean_t legit; 1233 boolean_t synthetic_release_needed; 1234 1235 if (kb8042->polled_synthetic_release_pending) { 1236 *key = kb8042->polled_synthetic_release_key; 1237 *state = KEY_RELEASED; 1238 kb8042->polled_synthetic_release_pending = B_FALSE; 1239 #if defined(KD_DEBUG) 1240 if (kb8042_getchar_debug) 1241 prom_printf("synthetic release 0x%x\n", *key); 1242 #endif 1243 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1244 return (B_TRUE); 1245 } 1246 1247 for (;;) { 1248 if (ddi_get8(kb8042->handle, 1249 kb8042->addr + I8042_POLL_INPUT_AVAIL) == 0) { 1250 return (B_FALSE); 1251 } 1252 1253 scancode = ddi_get8(kb8042->handle, 1254 kb8042->addr + I8042_POLL_INPUT_DATA); 1255 1256 #if defined(KD_DEBUG) 1257 if (kb8042_low_level_debug) 1258 prom_printf(" g<%x ", scancode); 1259 #endif 1260 1261 if (kb8042_state_machine(kb8042, scancode, B_FALSE) != 1262 STATE_NORMAL) { 1263 continue; 1264 } 1265 1266 #ifdef KD_DEBUG 1267 kb8042_debug_hotkey(scancode); 1268 if (kb8042_getchar_debug) 1269 prom_printf("polled 0x%x", scancode); 1270 #endif 1271 1272 legit = KeyboardConvertScan(kb8042, scancode, key, state, 1273 &synthetic_release_needed); 1274 if (!legit) { 1275 #ifdef KD_DEBUG 1276 if (kb8042_getchar_debug) 1277 prom_printf(" -> ignored\n"); 1278 #endif 1279 continue; 1280 } 1281 #ifdef KD_DEBUG 1282 if (kb8042_getchar_debug) { 1283 prom_printf(" -> %s %d\n", 1284 *state == KEY_PRESSED ? "pressed" : "released", 1285 *key); 1286 } 1287 #endif 1288 /* 1289 * For the moment at least, we rely on hardware autorepeat 1290 * for polled I/O autorepeat. However, for coordination 1291 * with the interrupt-driven code, maintain the last key 1292 * pressed. 1293 */ 1294 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1295 1296 /* 1297 * This is a total hack to support two additional keys 1298 * on Korean keyboards. They report only on press, and 1299 * so we synthesize a release. Most likely this will 1300 * never be important to polled I/O, but if I do it 1301 * "right" the first time it _won't_ be an issue. 1302 */ 1303 if (synthetic_release_needed) { 1304 kb8042->polled_synthetic_release_pending = B_TRUE; 1305 kb8042->polled_synthetic_release_key = *key; 1306 } 1307 1308 if (kb8042->simulated_kbd_type == KB_USB) { 1309 *key = keytab_pc2usb[*key]; 1310 } 1311 return (B_TRUE); 1312 } 1313 } 1314 1315 static void 1316 kb8042_setled(struct kb8042 *kb8042, int led_state, boolean_t polled) 1317 { 1318 kb8042->leds.desired = led_state; 1319 1320 if (!polled) 1321 mutex_enter(&kb8042->w_hw_mutex); 1322 1323 kb8042_start_state_machine(kb8042, polled); 1324 1325 if (!polled) 1326 mutex_exit(&kb8042->w_hw_mutex); 1327 } 1328 1329 static void 1330 kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state) 1331 { 1332 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1333 kb8042_setled(kb8042, led_state, B_TRUE); 1334 } 1335 1336 static void 1337 kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state) 1338 { 1339 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1340 kb8042_setled(kb8042, led_state, B_FALSE); 1341 } 1342 1343 static void 1344 kb8042_send_to_keyboard(struct kb8042 *kb8042, int byte, boolean_t polled) 1345 { 1346 if (polled) { 1347 ddi_put8(kb8042->handle, 1348 kb8042->addr + I8042_POLL_OUTPUT_DATA, byte); 1349 } else { 1350 ddi_put8(kb8042->handle, 1351 kb8042->addr + I8042_INT_OUTPUT_DATA, byte); 1352 } 1353 1354 #if defined(KD_DEBUG) 1355 if (kb8042_low_level_debug) 1356 prom_printf(" >K:%x ", byte); 1357 #endif 1358 } 1359 1360 /* 1361 * Wait until the keyboard is fully up, maybe. 1362 * We may be the first person to talk to the keyboard, in which case 1363 * it's patiently waiting to say "AA" to us to tell us it's up. 1364 * In theory it sends the AA in 300ms < n < 9s, but it's a pretty 1365 * good bet that we've already spent that long getting to that point, 1366 * so we'll only wait long enough for the communications electronics to 1367 * run. 1368 */ 1369 static void 1370 kb8042_wait_poweron(struct kb8042 *kb8042) 1371 { 1372 int cnt; 1373 int ready; 1374 unsigned char byt; 1375 1376 /* wait for up to 250 ms for a response */ 1377 for (cnt = 0; cnt < 250; cnt++) { 1378 ready = ddi_get8(kb8042->handle, 1379 kb8042->addr + I8042_INT_INPUT_AVAIL); 1380 if (ready != 0) 1381 break; 1382 drv_usecwait(1000); 1383 } 1384 1385 /* 1386 * If there's something pending, read and discard it. If not, 1387 * assume things are OK anyway - maybe somebody else ate it 1388 * already. (On a PC, the BIOS almost certainly did.) 1389 */ 1390 if (ready != 0) { 1391 byt = ddi_get8(kb8042->handle, 1392 kb8042->addr + I8042_INT_INPUT_DATA); 1393 #if defined(KD_DEBUG) 1394 if (kb8042_low_level_debug) 1395 prom_printf(" <K:%x ", byt); 1396 #endif 1397 } 1398 } 1399 1400 static void 1401 kb8042_start_state_machine(struct kb8042 *kb8042, boolean_t polled) 1402 { 1403 if (kb8042->command_state == KB_COMMAND_STATE_IDLE) { 1404 if (kb8042->leds.desired != kb8042->leds.commanded) { 1405 kb8042_send_to_keyboard(kb8042, KB_SET_LED, polled); 1406 kb8042->command_state = KB_COMMAND_STATE_LED; 1407 } 1408 } 1409 } 1410 1411 enum state_return 1412 kb8042_state_machine(struct kb8042 *kb8042, int scancode, boolean_t polled) 1413 { 1414 switch (kb8042->command_state) { 1415 case KB_COMMAND_STATE_IDLE: 1416 break; 1417 1418 case KB_COMMAND_STATE_LED: 1419 if (scancode == KB_ACK) { 1420 kb8042_send_to_keyboard(kb8042, 1421 kb8042_xlate_leds(kb8042->leds.desired), 1422 polled); 1423 kb8042->leds.commanded = kb8042->leds.desired; 1424 kb8042->command_state = KB_COMMAND_STATE_WAIT; 1425 return (STATE_INTERNAL); 1426 } 1427 /* Drop normal scan codes through. */ 1428 break; 1429 1430 case KB_COMMAND_STATE_WAIT: 1431 if (scancode == KB_ACK) { 1432 kb8042->command_state = KB_COMMAND_STATE_IDLE; 1433 kb8042_start_state_machine(kb8042, polled); 1434 return (STATE_INTERNAL); 1435 } 1436 /* Drop normal scan codes through. */ 1437 break; 1438 } 1439 return (STATE_NORMAL); 1440 } 1441 1442 static int 1443 kb8042_xlate_leds(int led) 1444 { 1445 int res; 1446 1447 res = 0; 1448 1449 if (led & LED_NUM_LOCK) 1450 res |= LED_NUM; 1451 if (led & LED_SCROLL_LOCK) 1452 res |= LED_SCR; 1453 if (led & LED_CAPS_LOCK) 1454 res |= LED_CAP; 1455 1456 return (res); 1457 } 1458 1459 /*ARGSUSED*/ 1460 static void 1461 kb8042_get_initial_leds( 1462 struct kb8042 *kb8042, 1463 int *initial_leds, 1464 int *initial_led_mask) 1465 { 1466 #if defined(i86pc) 1467 extern caddr_t p0_va; 1468 uint8_t bios_kb_flag; 1469 1470 bios_kb_flag = p0_va[BIOS_KB_FLAG]; 1471 1472 *initial_led_mask = LED_CAPS_LOCK | LED_NUM_LOCK | LED_SCROLL_LOCK; 1473 *initial_leds = 0; 1474 if (bios_kb_flag & BIOS_CAPS_STATE) 1475 *initial_leds |= LED_CAPS_LOCK; 1476 if (bios_kb_flag & BIOS_NUM_STATE) 1477 *initial_leds |= LED_NUM_LOCK; 1478 if (bios_kb_flag & BIOS_SCROLL_STATE) 1479 *initial_leds |= LED_SCROLL_LOCK; 1480 #else 1481 *initial_leds = 0; 1482 *initial_led_mask = 0; 1483 #endif 1484 } 1485 1486 #if defined(KD_DEBUG) 1487 static void 1488 kb8042_debug_hotkey(int scancode) 1489 { 1490 if (!kb8042_enable_debug_hotkey) 1491 return; 1492 1493 switch (scancode) { 1494 case 0x44: /* F10 in Scan Set 1 code. (Set 2 code is 0x09) */ 1495 if (!kb8042_debug) { 1496 prom_printf("\nKeyboard: normal debugging on\n"); 1497 kb8042_debug = B_TRUE; 1498 } 1499 break; 1500 case 0x43: /* F9 in Scan Set 1 code. (Set 2 code is 0x01) */ 1501 if (!kb8042_getchar_debug) { 1502 prom_printf("\nKeyboard: getchar debugging on\n"); 1503 kb8042_getchar_debug = B_TRUE; 1504 } 1505 break; 1506 case 0x42: /* F8 in Scan Set 1 code. (Set 2 code is 0x0a) */ 1507 if (!kb8042_low_level_debug) { 1508 prom_printf("\nKeyboard: low-level debugging on\n"); 1509 kb8042_low_level_debug = B_TRUE; 1510 } 1511 break; 1512 case 0x41: /* F7 in Scan Set 1 code. (Set 2 code is 0x83) */ 1513 if (!kb8042_pressrelease_debug) { 1514 prom_printf( 1515 "\nKeyboard: press/release debugging on\n"); 1516 kb8042_pressrelease_debug = B_TRUE; 1517 } 1518 break; 1519 case 0x3b: /* F1 in Scan Set 1 code. (Set 2 code is 0x05) */ 1520 if (kb8042_debug || 1521 kb8042_getchar_debug || 1522 kb8042_low_level_debug || 1523 kb8042_pressrelease_debug) { 1524 prom_printf("\nKeyboard: all debugging off\n"); 1525 kb8042_debug = B_FALSE; 1526 kb8042_getchar_debug = B_FALSE; 1527 kb8042_low_level_debug = B_FALSE; 1528 kb8042_pressrelease_debug = B_FALSE; 1529 } 1530 break; 1531 } 1532 } 1533 #endif 1534 1535 static boolean_t 1536 kb8042_autorepeat_detect( 1537 struct kb8042 *kb8042, 1538 int key_pos, 1539 enum keystate state) 1540 { 1541 if (state == KEY_RELEASED) { 1542 if (kb8042->kb_old_key_pos == key_pos) 1543 kb8042->kb_old_key_pos = 0; 1544 } else { 1545 if (kb8042->kb_old_key_pos == key_pos) { 1546 return (B_TRUE); 1547 } 1548 kb8042->kb_old_key_pos = key_pos; 1549 } 1550 return (B_FALSE); 1551 } 1552 1553 /* ARGSUSED */ 1554 static void 1555 kb8042_type4_cmd(struct kb8042 *kb8042, int cmd) 1556 { 1557 switch (cmd) { 1558 case KBD_CMD_BELL: 1559 (void) beeper_on(BEEP_TYPE4); 1560 break; 1561 case KBD_CMD_NOBELL: 1562 (void) beeper_off(); 1563 break; 1564 } 1565 } 1566 1567 1568 /* 1569 * This is a pass-thru routine to get a character at poll time. 1570 */ 1571 static int 1572 kb8042_polled_getchar(cons_polledio_arg_t arg) 1573 { 1574 struct kb8042 *kb8042; 1575 1576 kb8042 = (struct kb8042 *)arg; 1577 1578 return (kbtrans_getchar(kb8042->hw_kbtrans)); 1579 } 1580 1581 /* 1582 * This is a pass-thru routine to get a character at poll time. 1583 */ 1584 static int 1585 kb8042_polled_ischar(cons_polledio_arg_t arg) 1586 { 1587 struct kb8042 *kb8042; 1588 1589 kb8042 = (struct kb8042 *)arg; 1590 1591 return (kbtrans_ischar(kb8042->hw_kbtrans)); 1592 } 1593