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 2008 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 #define KEYMAP_SIZE_VARIABLE 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_send_to_keyboard(struct kb8042 *, int, boolean_t); 148 static int kb8042_xlate_leds(int); 149 static void kb8042_setled(struct kb8042 *, int led_state, boolean_t polled); 150 static void kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state); 151 static void kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state); 152 static boolean_t kb8042_polled_keycheck( 153 struct kbtrans_hardware *hw, int *key, 154 enum keystate *state); 155 static void kb8042_get_initial_leds(struct kb8042 *, int *, int *); 156 static boolean_t kb8042_autorepeat_detect(struct kb8042 *kb8042, int key_pos, 157 enum keystate state); 158 static void kb8042_type4_cmd(struct kb8042 *kb8042, int cmd); 159 static void kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *, mblk_t *); 160 static void kb8042_iocdatamsg(queue_t *, mblk_t *); 161 static void kb8042_process_key(struct kb8042 *, kbtrans_key_t, enum keystate); 162 static int kb8042_polled_ischar(cons_polledio_arg_t arg); 163 static int kb8042_polled_getchar(cons_polledio_arg_t arg); 164 static void kb8042_cleanup(struct kb8042 *kb8042); 165 166 static struct kbtrans_callbacks kb8042_callbacks = { 167 kb8042_streams_setled, 168 kb8042_polled_setled, 169 kb8042_polled_keycheck, 170 }; 171 172 extern struct keyboard keyindex_pc; 173 174 #define DRIVER_NAME(dip) ddi_driver_name(dip) 175 176 static char module_name[] = "kb8042"; 177 178 static int kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, 179 cred_t *credp); 180 static int kb8042_close(queue_t *qp, int flag, cred_t *credp); 181 static int kb8042_wsrv(); 182 183 struct module_info kb8042_sinfo = { 184 42, /* Module ID */ 185 module_name, 186 0, 32, /* Minimum and maximum packet sizes */ 187 256, 128 /* High and low water marks */ 188 }; 189 190 static struct qinit kb8042_rinit = { 191 NULL, NULL, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 192 }; 193 194 static struct qinit kb8042_winit = { 195 putq, kb8042_wsrv, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 196 }; 197 198 struct streamtab 199 kb8042_str_info = { &kb8042_rinit, &kb8042_winit, NULL, NULL }; 200 201 struct kb8042 Kdws = {0}; 202 static dev_info_t *kb8042_dip = NULL; 203 204 static int kb8042_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 205 void **result); 206 static int kb8042_attach(dev_info_t *, ddi_attach_cmd_t); 207 static int kb8042_detach(dev_info_t *, ddi_detach_cmd_t); 208 209 static struct cb_ops cb_kb8042_ops = { 210 nulldev, /* cb_open */ 211 nulldev, /* cb_close */ 212 nodev, /* cb_strategy */ 213 nodev, /* cb_print */ 214 nodev, /* cb_dump */ 215 nodev, /* cb_read */ 216 nodev, /* cb_write */ 217 nodev, /* cb_ioctl */ 218 nodev, /* cb_devmap */ 219 nodev, /* cb_mmap */ 220 nodev, /* cb_segmap */ 221 nochpoll, /* cb_chpoll */ 222 ddi_prop_op, /* cb_prop_op */ 223 &kb8042_str_info, /* cb_stream */ 224 D_MP 225 }; 226 227 struct dev_ops kb8042_ops = { 228 DEVO_REV, /* devo_rev */ 229 0, /* devo_refcnt */ 230 kb8042_getinfo, /* devo_getinfo */ 231 nulldev, /* devo_identify */ 232 nulldev, /* devo_probe */ 233 kb8042_attach, /* devo_attach */ 234 kb8042_detach, /* devo_detach */ 235 nodev, /* devo_reset */ 236 &cb_kb8042_ops, /* devo_cb_ops */ 237 (struct bus_ops *)NULL, /* devo_bus_ops */ 238 NULL, /* devo_power */ 239 ddi_quiesce_not_needed, /* devo_quiesce */ 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 driver", 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 should send the 376 * scan code 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 instance #%d READY\n", 547 DRIVER_NAME(devi), ddi_get_instance(devi)); 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 /*ARGSUSED*/ 589 static int 590 kb8042_getinfo( 591 dev_info_t *dip, 592 ddi_info_cmd_t infocmd, 593 void *arg, 594 void **result) 595 { 596 register int error; 597 598 switch (infocmd) { 599 case DDI_INFO_DEVT2DEVINFO: 600 if (kb8042_dip == NULL) { 601 error = DDI_FAILURE; 602 } else { 603 *result = (void *) kb8042_dip; 604 error = DDI_SUCCESS; 605 } 606 break; 607 case DDI_INFO_DEVT2INSTANCE: 608 *result = (void *)0; 609 error = DDI_SUCCESS; 610 break; 611 default: 612 error = DDI_FAILURE; 613 break; 614 } 615 return (error); 616 } 617 618 static void 619 kb8042_cleanup(struct kb8042 *kb8042) 620 { 621 ASSERT(kb8042_dip != NULL); 622 623 if (kb8042->init_state & KB8042_HW_MUTEX_INITTED) { 624 cv_destroy(&kb8042->suspend_cv); 625 cv_destroy(&kb8042->ops_cv); 626 mutex_destroy(&kb8042->w_hw_mutex); 627 } 628 629 if (kb8042->init_state & KB8042_INTR_ADDED) 630 ddi_remove_intr(kb8042_dip, 0, kb8042->w_iblock); 631 632 if (kb8042->init_state & KB8042_REGS_MAPPED) 633 ddi_regs_map_free(&kb8042->handle); 634 635 if (kb8042->init_state & KB8042_MINOR_NODE_CREATED) 636 ddi_remove_minor_node(kb8042_dip, NULL); 637 638 kb8042->init_state = KB8042_UNINITIALIZED; 639 kb8042_dip = NULL; 640 } 641 642 static void 643 kb8042_init(struct kb8042 *kb8042, boolean_t from_resume) 644 { 645 if (kb8042->w_init) 646 return; 647 648 if (!from_resume) { 649 kb8042->w_kblayout = 0; /* Default to US */ 650 kb8042->w_qp = (queue_t *)NULL; 651 kb8042->simulated_kbd_type = KB_PC; 652 kb8042->leds.commanded = -1; /* Unknown initial state */ 653 kb8042->leds.desired = -1; /* Unknown initial state */ 654 } 655 656 kb8042_wait_poweron(kb8042); 657 658 kb8042->kb_old_key_pos = 0; 659 660 /* Set up the command state machine and start it running. */ 661 kb8042_send_to_keyboard(kb8042, KB_ENABLE, B_FALSE); 662 663 kb8042->w_init++; 664 665 (void) drv_setparm(SYSRINT, 1); /* reset keyboard interrupts */ 666 } 667 668 /*ARGSUSED2*/ 669 static int 670 kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, cred_t *credp) 671 { 672 struct kb8042 *kb8042; 673 int err; 674 int initial_leds; 675 int initial_led_mask; 676 677 kb8042 = &Kdws; 678 679 mutex_enter(&kb8042->w_hw_mutex); 680 while (kb8042->suspended) { 681 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 682 0) { 683 mutex_exit(&kb8042->w_hw_mutex); 684 return (EINTR); 685 } 686 } 687 688 kb8042->w_dev = *devp; 689 690 if (qp->q_ptr) { 691 mutex_exit(&kb8042->w_hw_mutex); 692 return (0); 693 } 694 qp->q_ptr = (caddr_t)kb8042; 695 WR(qp)->q_ptr = qp->q_ptr; 696 if (!kb8042->w_qp) 697 kb8042->w_qp = qp; 698 699 ASSERT(kb8042->ops >= 0); 700 kb8042->ops++; 701 mutex_exit(&kb8042->w_hw_mutex); 702 703 kb8042_get_initial_leds(kb8042, &initial_leds, &initial_led_mask); 704 err = kbtrans_streams_init(qp, sflag, credp, 705 (struct kbtrans_hardware *)kb8042, &kb8042_callbacks, 706 &kb8042->hw_kbtrans, 707 initial_leds, initial_led_mask); 708 if (err != 0) 709 return (err); 710 711 kbtrans_streams_set_keyboard(kb8042->hw_kbtrans, KB_PC, &keyindex_pc); 712 713 kb8042->polledio.cons_polledio_version = CONSPOLLEDIO_V1; 714 kb8042->polledio.cons_polledio_argument = 715 (cons_polledio_arg_t)kb8042; 716 kb8042->polledio.cons_polledio_putchar = NULL; 717 kb8042->polledio.cons_polledio_getchar = 718 (int (*)(cons_polledio_arg_t))kb8042_polled_getchar; 719 kb8042->polledio.cons_polledio_ischar = 720 (boolean_t (*)(cons_polledio_arg_t))kb8042_polled_ischar; 721 kb8042->polledio.cons_polledio_enter = NULL; 722 kb8042->polledio.cons_polledio_exit = NULL; 723 kb8042->polledio.cons_polledio_setled = 724 (void (*)(cons_polledio_arg_t, int))kb8042_polled_setled; 725 kb8042->polledio.cons_polledio_keycheck = 726 (boolean_t (*)(cons_polledio_arg_t, int *, 727 enum keystate *))kb8042_polled_keycheck; 728 729 qprocson(qp); 730 731 kbtrans_streams_enable(kb8042->hw_kbtrans); 732 733 mutex_enter(&kb8042->w_hw_mutex); 734 ASSERT(kb8042->ops > 0); 735 kb8042->ops--; 736 if (kb8042->ops == 0) 737 cv_broadcast(&kb8042->ops_cv); 738 mutex_exit(&kb8042->w_hw_mutex); 739 740 return (0); 741 } 742 743 /*ARGSUSED1*/ 744 static int 745 kb8042_close(queue_t *qp, int flag, cred_t *credp) 746 { 747 struct kb8042 *kb8042; 748 749 /* If a beep is in progress, stop that */ 750 (void) beeper_off(); 751 752 kb8042 = (struct kb8042 *)qp->q_ptr; 753 754 mutex_enter(&kb8042->w_hw_mutex); 755 while (kb8042->suspended) { 756 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 757 0) { 758 mutex_exit(&kb8042->w_hw_mutex); 759 return (EINTR); 760 } 761 } 762 763 ASSERT(kb8042->ops >= 0); 764 kb8042->ops++; 765 mutex_exit(&kb8042->w_hw_mutex); 766 767 (void) kbtrans_streams_fini(kb8042->hw_kbtrans); 768 769 kb8042->w_qp = (queue_t *)NULL; 770 qprocsoff(qp); 771 772 mutex_enter(&kb8042->w_hw_mutex); 773 ASSERT(kb8042->ops > 0); 774 kb8042->ops--; 775 if (kb8042->ops == 0) 776 cv_broadcast(&kb8042->ops_cv); 777 mutex_exit(&kb8042->w_hw_mutex); 778 779 return (0); 780 } 781 782 static int 783 kb8042_wsrv(queue_t *qp) 784 { 785 struct kb8042 *kb8042; 786 787 mblk_t *mp; 788 boolean_t suspended; 789 790 kb8042 = (struct kb8042 *)qp->q_ptr; 791 792 mutex_enter(&kb8042->w_hw_mutex); 793 suspended = kb8042->suspended; 794 ASSERT(kb8042->ops >= 0); 795 if (!suspended) 796 kb8042->ops++; 797 mutex_exit(&kb8042->w_hw_mutex); 798 799 #ifdef NO_KB_DEBUG 800 while (!suspended && (mp = getq(qp)) != NULL) { 801 #else 802 /* 803 * Not taking keyboard input while suspending can make debugging 804 * difficult. However, we still do the ops counting so that we 805 * don't suspend at a bad time. 806 */ 807 while ((mp = getq(qp))) { 808 #endif 809 switch (kbtrans_streams_message(kb8042->hw_kbtrans, mp)) { 810 case KBTRANS_MESSAGE_HANDLED: 811 continue; 812 case KBTRANS_MESSAGE_NOT_HANDLED: 813 break; 814 } 815 switch (mp->b_datap->db_type) { 816 case M_IOCTL: 817 kb8042_ioctlmsg(kb8042, qp, mp); 818 continue; 819 case M_IOCDATA: 820 kb8042_iocdatamsg(qp, mp); 821 continue; 822 case M_DELAY: 823 case M_STARTI: 824 case M_STOPI: 825 case M_READ: /* ignore, no buffered data */ 826 freemsg(mp); 827 continue; 828 case M_FLUSH: 829 *mp->b_rptr &= ~FLUSHW; 830 if (*mp->b_rptr & FLUSHR) 831 qreply(qp, mp); 832 else 833 freemsg(mp); 834 continue; 835 default: 836 cmn_err(CE_NOTE, "kb8042_wsrv: bad msg %x", 837 mp->b_datap->db_type); 838 freemsg(mp); 839 continue; 840 } 841 } 842 843 mutex_enter(&kb8042->w_hw_mutex); 844 if (!suspended) { 845 ASSERT(kb8042->ops > 0); 846 kb8042->ops--; 847 if (kb8042->ops == 0) 848 cv_broadcast(&kb8042->ops_cv); 849 } 850 mutex_exit(&kb8042->w_hw_mutex); 851 852 return (0); 853 } 854 855 static void 856 kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *qp, mblk_t *mp) 857 { 858 struct iocblk *iocp; 859 mblk_t *datap; 860 int error; 861 int tmp; 862 int cycles; 863 int frequency; 864 int msecs; 865 866 iocp = (struct iocblk *)mp->b_rptr; 867 868 switch (iocp->ioc_cmd) { 869 870 case CONSOPENPOLLEDIO: 871 error = miocpullup(mp, sizeof (struct cons_polledio *)); 872 if (error != 0) { 873 miocnak(qp, mp, 0, error); 874 return; 875 } 876 877 /* 878 * We are given an appropriate-sized data block, 879 * and return a pointer to our structure in it. 880 */ 881 *(struct cons_polledio **)mp->b_cont->b_rptr = 882 &kb8042->polledio; 883 mp->b_datap->db_type = M_IOCACK; 884 iocp->ioc_error = 0; 885 qreply(qp, mp); 886 break; 887 888 case CONSCLOSEPOLLEDIO: 889 miocack(qp, mp, 0, 0); 890 break; 891 892 case CONSSETABORTENABLE: 893 if (iocp->ioc_count != TRANSPARENT) { 894 miocnak(qp, mp, 0, EINVAL); 895 return; 896 } 897 898 kb8042->debugger.enabled = *(intptr_t *)mp->b_cont->b_rptr; 899 miocack(qp, mp, 0, 0); 900 break; 901 902 /* 903 * Valid only in TR_UNTRANS_MODE mode. 904 */ 905 case CONSSETKBDTYPE: 906 error = miocpullup(mp, sizeof (int)); 907 if (error != 0) { 908 miocnak(qp, mp, 0, error); 909 return; 910 } 911 tmp = *(int *)mp->b_cont->b_rptr; 912 if (tmp != KB_PC && tmp != KB_USB) { 913 miocnak(qp, mp, 0, EINVAL); 914 break; 915 } 916 kb8042->simulated_kbd_type = tmp; 917 miocack(qp, mp, 0, 0); 918 break; 919 920 case KIOCLAYOUT: 921 if (kb8042->w_kblayout == -1) { 922 miocnak(qp, mp, 0, EINVAL); 923 return; 924 } 925 926 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL) { 927 miocnak(qp, mp, 0, ENOMEM); 928 return; 929 } 930 931 if (kb8042->simulated_kbd_type == KB_USB) 932 *(int *)datap->b_wptr = KBTRANS_USBKB_DEFAULT_LAYOUT; 933 else 934 *(int *)datap->b_wptr = kb8042->w_kblayout; 935 936 datap->b_wptr += sizeof (int); 937 if (mp->b_cont) 938 freemsg(mp->b_cont); 939 mp->b_cont = datap; 940 iocp->ioc_count = sizeof (int); 941 mp->b_datap->db_type = M_IOCACK; 942 iocp->ioc_error = 0; 943 qreply(qp, mp); 944 break; 945 946 case KIOCSLAYOUT: 947 if (iocp->ioc_count != TRANSPARENT) { 948 miocnak(qp, mp, 0, EINVAL); 949 return; 950 } 951 952 kb8042->w_kblayout = *(intptr_t *)mp->b_cont->b_rptr; 953 miocack(qp, mp, 0, 0); 954 break; 955 956 case KIOCCMD: 957 error = miocpullup(mp, sizeof (int)); 958 if (error != 0) { 959 miocnak(qp, mp, 0, error); 960 return; 961 } 962 963 kb8042_type4_cmd(kb8042, *(int *)mp->b_cont->b_rptr); 964 miocack(qp, mp, 0, 0); 965 break; 966 967 case KIOCMKTONE: 968 if (iocp->ioc_count != TRANSPARENT) { 969 miocnak(qp, mp, 0, EINVAL); 970 return; 971 } 972 973 tmp = (int)(*(intptr_t *)mp->b_cont->b_rptr); 974 cycles = tmp & 0xffff; 975 msecs = (tmp >> 16) & 0xffff; 976 977 if (cycles == 0) 978 frequency = UINT16_MAX; 979 else if (cycles == UINT16_MAX) 980 frequency = 0; 981 else { 982 frequency = (PIT_HZ + cycles / 2) / cycles; 983 if (frequency > UINT16_MAX) 984 frequency = UINT16_MAX; 985 } 986 987 error = beep_mktone(frequency, msecs); 988 if (error != 0) 989 miocnak(qp, mp, 0, error); 990 else 991 miocack(qp, mp, 0, 0); 992 break; 993 994 default: 995 #ifdef DEBUG1 996 cmn_err(CE_NOTE, "!kb8042_ioctlmsg %x", iocp->ioc_cmd); 997 #endif 998 miocnak(qp, mp, 0, EINVAL); 999 return; 1000 } 1001 } 1002 1003 /* 1004 * Process a byte received from the keyboard 1005 */ 1006 static void 1007 kb8042_received_byte( 1008 struct kb8042 *kb8042, 1009 int scancode) /* raw scan code */ 1010 { 1011 boolean_t legit; /* is this a legit key pos'n? */ 1012 int key_pos = -1; 1013 enum keystate state; 1014 boolean_t synthetic_release_needed; 1015 1016 #ifdef KD_DEBUG 1017 kb8042_debug_hotkey(scancode); 1018 #endif 1019 1020 if (!kb8042->w_init) /* can't do anything anyway */ 1021 return; 1022 1023 legit = KeyboardConvertScan(kb8042, scancode, &key_pos, &state, 1024 &synthetic_release_needed); 1025 1026 if (legit == 0) { 1027 /* Eaten by translation */ 1028 #ifdef KD_DEBUG 1029 if (kb8042_debug) 1030 prom_printf("kb8042_intr: 0x%x -> ignored\n", scancode); 1031 #endif 1032 return; 1033 } 1034 1035 #ifdef KD_DEBUG 1036 if (kb8042_debug) { 1037 prom_printf("kb8042_intr: 0x%x -> %s %d", 1038 scancode, 1039 state == KEY_RELEASED ? "released" : "pressed", 1040 key_pos); 1041 } 1042 #endif 1043 1044 /* 1045 * Don't know if we want this permanently, but it seems interesting 1046 * for the moment. 1047 */ 1048 if (key_pos == kb8042->debugger.mod1) { 1049 #ifdef KD_DEBUG 1050 if (kb8042_debug) 1051 prom_printf(" -> debug mod1"); 1052 #endif 1053 kb8042->debugger.mod1_down = (state == KEY_PRESSED); 1054 } 1055 if (key_pos == kb8042->debugger.mod2) { 1056 #ifdef KD_DEBUG 1057 if (kb8042_debug) 1058 prom_printf(" -> debug mod2"); 1059 #endif 1060 kb8042->debugger.mod2_down = (state == KEY_PRESSED); 1061 } 1062 if (kb8042->debugger.enabled && 1063 key_pos == kb8042->debugger.trigger && 1064 kb8042->debugger.mod1_down && 1065 kb8042->debugger.mod2_down) { 1066 #ifdef KD_DEBUG 1067 if (kb8042_debug) 1068 prom_printf(" -> debugger\n"); 1069 #endif 1070 /* 1071 * Require new presses of the modifiers. 1072 */ 1073 kb8042->debugger.mod1_down = B_FALSE; 1074 kb8042->debugger.mod2_down = B_FALSE; 1075 abort_sequence_enter(NULL); 1076 return; 1077 } 1078 1079 /* 1080 * If there's no queue above us - as can happen if we've been 1081 * attached but not opened - drop the keystroke. 1082 * Note that we do this here instead of above so that 1083 * Ctrl-Alt-D still works. 1084 */ 1085 if (kb8042->w_qp == NULL) { 1086 #ifdef KD_DEBUG 1087 if (kb8042_debug) 1088 prom_printf(" -> nobody home\n"); 1089 #endif 1090 return; 1091 } 1092 1093 /* 1094 * This is to filter out auto repeat since it can't be 1095 * turned off at the hardware. (Yeah, yeah, PS/2 keyboards 1096 * can. Don't know whether they've taken over the world. 1097 * Don't think so.) 1098 */ 1099 if (kb8042_autorepeat_detect(kb8042, key_pos, state)) { 1100 #ifdef KD_DEBUG 1101 if (kb8042_debug) 1102 prom_printf(" -> autorepeat ignored\n"); 1103 #endif 1104 return; 1105 } 1106 1107 #ifdef KD_DEBUG 1108 if (kb8042_debug) 1109 prom_printf(" -> OK\n"); 1110 #endif 1111 1112 #if defined(KD_DEBUG) 1113 if (kb8042_pressrelease_debug) { 1114 prom_printf(" %s%d ", 1115 state == KEY_PRESSED ? "+" : "-", 1116 key_pos); 1117 } 1118 #endif 1119 1120 kb8042_process_key(kb8042, key_pos, state); 1121 1122 /* 1123 * This is a total hack. For some stupid reason, the two additional 1124 * keys on Korean keyboards (Hangul and Hangul/Hanja) report press 1125 * only. We synthesize a release immediately. 1126 */ 1127 if (synthetic_release_needed) { 1128 #if defined(KD_DEBUG) 1129 if (kb8042_debug) 1130 prom_printf("synthetic release %d\n", key_pos); 1131 if (kb8042_pressrelease_debug) 1132 prom_printf(" -%d(s) ", key_pos); 1133 #endif 1134 (void) kb8042_autorepeat_detect(kb8042, key_pos, KEY_RELEASED); 1135 kb8042_process_key(kb8042, key_pos, state); 1136 } 1137 } 1138 1139 1140 static void 1141 kb8042_process_key(struct kb8042 *kb8042, kbtrans_key_t key_pos, 1142 enum keystate state) 1143 { 1144 kbtrans_key_t key; 1145 1146 ASSERT(key_pos >= 0 && key_pos <= 255); 1147 if (kb8042->simulated_kbd_type == KB_PC) { 1148 kbtrans_streams_key(kb8042->hw_kbtrans, key_pos, state); 1149 } else if (kb8042->simulated_kbd_type == KB_USB) { 1150 key = keytab_pc2usb[key_pos]; 1151 if (key != 0) { 1152 kbtrans_streams_key(kb8042->hw_kbtrans, key, state); 1153 } 1154 } 1155 } 1156 1157 /* 1158 * Called from interrupt handler when keyboard interrupt occurs. 1159 */ 1160 static uint_t 1161 kb8042_intr(caddr_t arg) 1162 { 1163 uchar_t scancode; /* raw scan code */ 1164 int rc; 1165 struct kb8042 *kb8042 = (struct kb8042 *)arg; 1166 1167 rc = DDI_INTR_UNCLAIMED; 1168 1169 if (kb8042->init_state == KB8042_UNINITIALIZED) 1170 return (DDI_INTR_UNCLAIMED); 1171 1172 /* don't care if drv_setparm succeeds */ 1173 (void) drv_setparm(SYSRINT, 1); 1174 1175 while (ddi_get8(kb8042->handle, kb8042->addr + I8042_INT_INPUT_AVAIL) 1176 != 0) { 1177 rc = DDI_INTR_CLAIMED; 1178 1179 scancode = ddi_get8(kb8042->handle, 1180 kb8042->addr + I8042_INT_INPUT_DATA); 1181 1182 #if defined(KD_DEBUG) 1183 if (kb8042_low_level_debug) 1184 prom_printf(" <K:%x ", scancode); 1185 #endif 1186 1187 kb8042_received_byte(kb8042, scancode); 1188 } 1189 1190 return (rc); 1191 } 1192 1193 static void 1194 kb8042_iocdatamsg(queue_t *qp, mblk_t *mp) 1195 { 1196 struct copyresp *csp; 1197 1198 csp = (struct copyresp *)mp->b_rptr; 1199 if (csp->cp_rval) { 1200 freemsg(mp); 1201 return; 1202 } 1203 1204 switch (csp->cp_cmd) { 1205 default: 1206 miocack(qp, mp, 0, 0); 1207 break; 1208 } 1209 } 1210 1211 static boolean_t 1212 kb8042_polled_keycheck( 1213 struct kbtrans_hardware *hw, 1214 int *key, 1215 enum keystate *state) 1216 { 1217 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1218 int scancode; 1219 boolean_t legit; 1220 boolean_t synthetic_release_needed; 1221 1222 if (kb8042->polled_synthetic_release_pending) { 1223 *key = kb8042->polled_synthetic_release_key; 1224 *state = KEY_RELEASED; 1225 kb8042->polled_synthetic_release_pending = B_FALSE; 1226 #if defined(KD_DEBUG) 1227 if (kb8042_getchar_debug) 1228 prom_printf("synthetic release 0x%x\n", *key); 1229 #endif 1230 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1231 return (B_TRUE); 1232 } 1233 1234 for (;;) { 1235 if (ddi_get8(kb8042->handle, 1236 kb8042->addr + I8042_POLL_INPUT_AVAIL) == 0) { 1237 return (B_FALSE); 1238 } 1239 1240 scancode = ddi_get8(kb8042->handle, 1241 kb8042->addr + I8042_POLL_INPUT_DATA); 1242 1243 #if defined(KD_DEBUG) 1244 if (kb8042_low_level_debug) 1245 prom_printf(" g<%x ", scancode); 1246 #endif 1247 1248 #ifdef KD_DEBUG 1249 kb8042_debug_hotkey(scancode); 1250 if (kb8042_getchar_debug) 1251 prom_printf("polled 0x%x", scancode); 1252 #endif 1253 1254 legit = KeyboardConvertScan(kb8042, scancode, key, state, 1255 &synthetic_release_needed); 1256 if (!legit) { 1257 #ifdef KD_DEBUG 1258 if (kb8042_getchar_debug) 1259 prom_printf(" -> ignored\n"); 1260 #endif 1261 continue; 1262 } 1263 #ifdef KD_DEBUG 1264 if (kb8042_getchar_debug) { 1265 prom_printf(" -> %s %d\n", 1266 *state == KEY_PRESSED ? "pressed" : "released", 1267 *key); 1268 } 1269 #endif 1270 /* 1271 * For the moment at least, we rely on hardware autorepeat 1272 * for polled I/O autorepeat. However, for coordination 1273 * with the interrupt-driven code, maintain the last key 1274 * pressed. 1275 */ 1276 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1277 1278 /* 1279 * This is a total hack to support two additional keys 1280 * on Korean keyboards. They report only on press, and 1281 * so we synthesize a release. Most likely this will 1282 * never be important to polled I/O, but if I do it 1283 * "right" the first time it _won't_ be an issue. 1284 */ 1285 if (synthetic_release_needed) { 1286 kb8042->polled_synthetic_release_pending = B_TRUE; 1287 kb8042->polled_synthetic_release_key = *key; 1288 } 1289 1290 if (kb8042->simulated_kbd_type == KB_USB) { 1291 *key = keytab_pc2usb[*key]; 1292 } 1293 return (B_TRUE); 1294 } 1295 } 1296 1297 static void 1298 kb8042_setled(struct kb8042 *kb8042, int led_state, boolean_t polled) 1299 { 1300 kb8042->leds.desired = led_state; 1301 1302 if (!polled) 1303 mutex_enter(&kb8042->w_hw_mutex); 1304 1305 if (kb8042->leds.desired != kb8042->leds.commanded) { 1306 kb8042_send_to_keyboard(kb8042, KB_SET_LED, polled); 1307 } 1308 1309 if (!polled) 1310 mutex_exit(&kb8042->w_hw_mutex); 1311 } 1312 1313 static void 1314 kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state) 1315 { 1316 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1317 kb8042_setled(kb8042, led_state, B_TRUE); 1318 } 1319 1320 static void 1321 kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state) 1322 { 1323 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1324 kb8042_setled(kb8042, led_state, B_FALSE); 1325 } 1326 1327 static void 1328 kb8042_send_to_keyboard(struct kb8042 *kb8042, int byte, boolean_t polled) 1329 { 1330 uint8_t led_cmd[4]; 1331 1332 /* 1333 * KB_SET_LED and KB_ENABLE are special commands for which the nexus 1334 * driver is requested to wait for responses before proceeding. 1335 * KB_SET_LED also provides an option byte for the nexus to send to 1336 * the keyboard after the acknowledgement. 1337 * 1338 * Other commands/data are sent using the single put8 I/O access 1339 * function. 1340 */ 1341 if (byte == KB_SET_LED) { 1342 /* 1343 * Initialize the buffer used with _rep_put8. We 1344 * expect an ACK after the SET_LED command, at which point 1345 * the LED byte should be sent to the keyboard. 1346 */ 1347 led_cmd[0] = KB_SET_LED; 1348 led_cmd[1] = KB_ACK; 1349 led_cmd[2] = KB_RESEND; 1350 led_cmd[3] = kb8042_xlate_leds(kb8042->leds.desired); 1351 if (polled) { 1352 ddi_rep_put8(kb8042->handle, &led_cmd[0], 1353 kb8042->addr + I8042_POLL_CMD_PLUS_PARAM, 4, 0); 1354 } else { 1355 ddi_rep_put8(kb8042->handle, &led_cmd[0], 1356 kb8042->addr + I8042_INT_CMD_PLUS_PARAM, 4, 0); 1357 } 1358 kb8042->leds.commanded = kb8042->leds.desired; 1359 1360 } else if (byte == KB_ENABLE) { 1361 1362 /* 1363 * Initialize the buffer used with _rep_put8. We 1364 * expect an ACK after the KB_ENABLE command. 1365 */ 1366 led_cmd[0] = KB_ENABLE; 1367 led_cmd[1] = KB_ACK; 1368 led_cmd[2] = KB_RESEND; 1369 if (polled) { 1370 ddi_rep_put8(kb8042->handle, &led_cmd[0], 1371 kb8042->addr + I8042_POLL_CMD_PLUS_PARAM, 3, 0); 1372 } else { 1373 ddi_rep_put8(kb8042->handle, &led_cmd[0], 1374 kb8042->addr + I8042_INT_CMD_PLUS_PARAM, 3, 0); 1375 } 1376 } else { 1377 /* All other commands use the "normal" virtual output port */ 1378 if (polled) { 1379 ddi_put8(kb8042->handle, 1380 kb8042->addr + I8042_POLL_OUTPUT_DATA, byte); 1381 } else { 1382 ddi_put8(kb8042->handle, 1383 kb8042->addr + I8042_INT_OUTPUT_DATA, byte); 1384 } 1385 } 1386 1387 #if defined(KD_DEBUG) 1388 if (kb8042_low_level_debug) 1389 prom_printf(" >K:%x ", byte); 1390 #endif 1391 } 1392 1393 /* 1394 * Wait until the keyboard is fully up, maybe. 1395 * We may be the first person to talk to the keyboard, in which case 1396 * it's patiently waiting to say "AA" to us to tell us it's up. 1397 * In theory it sends the AA in 300ms < n < 9s, but it's a pretty 1398 * good bet that we've already spent that long getting to that point, 1399 * so we'll only wait long enough for the communications electronics to 1400 * run. 1401 */ 1402 static void 1403 kb8042_wait_poweron(struct kb8042 *kb8042) 1404 { 1405 int cnt; 1406 int ready; 1407 unsigned char byt; 1408 1409 /* wait for up to 250 ms for a response */ 1410 for (cnt = 0; cnt < 250; cnt++) { 1411 ready = ddi_get8(kb8042->handle, 1412 kb8042->addr + I8042_INT_INPUT_AVAIL); 1413 if (ready != 0) 1414 break; 1415 drv_usecwait(1000); 1416 } 1417 1418 /* 1419 * If there's something pending, read and discard it. If not, 1420 * assume things are OK anyway - maybe somebody else ate it 1421 * already. (On a PC, the BIOS almost certainly did.) 1422 */ 1423 if (ready != 0) { 1424 byt = ddi_get8(kb8042->handle, 1425 kb8042->addr + I8042_INT_INPUT_DATA); 1426 #if defined(KD_DEBUG) 1427 if (kb8042_low_level_debug) 1428 prom_printf(" <K:%x ", byt); 1429 #endif 1430 } 1431 } 1432 1433 static int 1434 kb8042_xlate_leds(int led) 1435 { 1436 int res; 1437 1438 res = 0; 1439 1440 if (led & LED_NUM_LOCK) 1441 res |= LED_NUM; 1442 if (led & LED_SCROLL_LOCK) 1443 res |= LED_SCR; 1444 if (led & LED_CAPS_LOCK) 1445 res |= LED_CAP; 1446 1447 return (res); 1448 } 1449 1450 /*ARGSUSED*/ 1451 static void 1452 kb8042_get_initial_leds( 1453 struct kb8042 *kb8042, 1454 int *initial_leds, 1455 int *initial_led_mask) 1456 { 1457 #if defined(__i386) || defined(__amd64) 1458 extern caddr_t p0_va; 1459 uint8_t bios_kb_flag; 1460 1461 bios_kb_flag = p0_va[BIOS_KB_FLAG]; 1462 1463 *initial_led_mask = LED_CAPS_LOCK | LED_NUM_LOCK | LED_SCROLL_LOCK; 1464 *initial_leds = 0; 1465 if (bios_kb_flag & BIOS_CAPS_STATE) 1466 *initial_leds |= LED_CAPS_LOCK; 1467 if (bios_kb_flag & BIOS_NUM_STATE) 1468 *initial_leds |= LED_NUM_LOCK; 1469 if (bios_kb_flag & BIOS_SCROLL_STATE) 1470 *initial_leds |= LED_SCROLL_LOCK; 1471 #else 1472 *initial_leds = 0; 1473 *initial_led_mask = 0; 1474 #endif 1475 } 1476 1477 #if defined(KD_DEBUG) 1478 static void 1479 kb8042_debug_hotkey(int scancode) 1480 { 1481 if (!kb8042_enable_debug_hotkey) 1482 return; 1483 1484 switch (scancode) { 1485 case 0x44: /* F10 in Scan Set 1 code. (Set 2 code is 0x09) */ 1486 if (!kb8042_debug) { 1487 prom_printf("\nKeyboard: normal debugging on\n"); 1488 kb8042_debug = B_TRUE; 1489 } 1490 break; 1491 case 0x43: /* F9 in Scan Set 1 code. (Set 2 code is 0x01) */ 1492 if (!kb8042_getchar_debug) { 1493 prom_printf("\nKeyboard: getchar debugging on\n"); 1494 kb8042_getchar_debug = B_TRUE; 1495 } 1496 break; 1497 case 0x42: /* F8 in Scan Set 1 code. (Set 2 code is 0x0a) */ 1498 if (!kb8042_low_level_debug) { 1499 prom_printf("\nKeyboard: low-level debugging on\n"); 1500 kb8042_low_level_debug = B_TRUE; 1501 } 1502 break; 1503 case 0x41: /* F7 in Scan Set 1 code. (Set 2 code is 0x83) */ 1504 if (!kb8042_pressrelease_debug) { 1505 prom_printf( 1506 "\nKeyboard: press/release debugging on\n"); 1507 kb8042_pressrelease_debug = B_TRUE; 1508 } 1509 break; 1510 case 0x3b: /* F1 in Scan Set 1 code. (Set 2 code is 0x05) */ 1511 if (kb8042_debug || 1512 kb8042_getchar_debug || 1513 kb8042_low_level_debug || 1514 kb8042_pressrelease_debug) { 1515 prom_printf("\nKeyboard: all debugging off\n"); 1516 kb8042_debug = B_FALSE; 1517 kb8042_getchar_debug = B_FALSE; 1518 kb8042_low_level_debug = B_FALSE; 1519 kb8042_pressrelease_debug = B_FALSE; 1520 } 1521 break; 1522 } 1523 } 1524 #endif 1525 1526 static boolean_t 1527 kb8042_autorepeat_detect( 1528 struct kb8042 *kb8042, 1529 int key_pos, 1530 enum keystate state) 1531 { 1532 if (state == KEY_RELEASED) { 1533 if (kb8042->kb_old_key_pos == key_pos) 1534 kb8042->kb_old_key_pos = 0; 1535 } else { 1536 if (kb8042->kb_old_key_pos == key_pos) { 1537 return (B_TRUE); 1538 } 1539 kb8042->kb_old_key_pos = key_pos; 1540 } 1541 return (B_FALSE); 1542 } 1543 1544 /* ARGSUSED */ 1545 static void 1546 kb8042_type4_cmd(struct kb8042 *kb8042, int cmd) 1547 { 1548 switch (cmd) { 1549 case KBD_CMD_BELL: 1550 (void) beeper_on(BEEP_TYPE4); 1551 break; 1552 case KBD_CMD_NOBELL: 1553 (void) beeper_off(); 1554 break; 1555 } 1556 } 1557 1558 1559 /* 1560 * This is a pass-thru routine to get a character at poll time. 1561 */ 1562 static int 1563 kb8042_polled_getchar(cons_polledio_arg_t arg) 1564 { 1565 struct kb8042 *kb8042; 1566 1567 kb8042 = (struct kb8042 *)arg; 1568 1569 return (kbtrans_getchar(kb8042->hw_kbtrans)); 1570 } 1571 1572 /* 1573 * This is a pass-thru routine to get a character at poll time. 1574 */ 1575 static int 1576 kb8042_polled_ischar(cons_polledio_arg_t arg) 1577 { 1578 struct kb8042 *kb8042; 1579 1580 kb8042 = (struct kb8042 *)arg; 1581 1582 return (kbtrans_ischar(kb8042->hw_kbtrans)); 1583 } 1584