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 2009 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, 128, 129, 127, 0, 0, 0, 0, 102 /* 240 */ 0, 0, 0, 0, 0, 0, 0, 0, 103 /* 248 */ 0, 0, 0, 0 104 }; 105 106 #ifdef __sparc 107 #define USECS_PER_WAIT 100 108 #define MAX_WAIT_USECS 100000 /* in usecs = 100 ms */ 109 #define MIN_DELAY_USECS USECS_PER_WAIT 110 111 boolean_t kb8042_warn_unknown_scanset = B_TRUE; 112 int kb8042_default_scanset = 2; 113 114 #endif 115 116 #define MAX_KB8042_WAIT_MAX_MS 500 /* 500ms total */ 117 #define MAX_KB8042_RETRIES 5 118 119 enum state_return { STATE_NORMAL, STATE_INTERNAL }; 120 121 static void kb8042_init(struct kb8042 *kb8042, boolean_t from_resume); 122 static uint_t kb8042_intr(caddr_t arg); 123 static void kb8042_wait_poweron(struct kb8042 *kb8042); 124 static void kb8042_send_to_keyboard(struct kb8042 *, int, boolean_t); 125 static int kb8042_xlate_leds(int); 126 static void kb8042_setled(struct kb8042 *, int led_state, boolean_t polled); 127 static void kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state); 128 static void kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state); 129 static boolean_t kb8042_polled_keycheck( 130 struct kbtrans_hardware *hw, int *key, 131 enum keystate *state); 132 static void kb8042_get_initial_leds(struct kb8042 *, int *, int *); 133 static boolean_t kb8042_autorepeat_detect(struct kb8042 *kb8042, int key_pos, 134 enum keystate state); 135 static void kb8042_type4_cmd(struct kb8042 *kb8042, int cmd); 136 static void kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *, mblk_t *); 137 static void kb8042_iocdatamsg(queue_t *, mblk_t *); 138 static void kb8042_process_key(struct kb8042 *, kbtrans_key_t, enum keystate); 139 static int kb8042_polled_ischar(cons_polledio_arg_t arg); 140 static int kb8042_polled_getchar(cons_polledio_arg_t arg); 141 static void kb8042_cleanup(struct kb8042 *kb8042); 142 143 static struct kbtrans_callbacks kb8042_callbacks = { 144 kb8042_streams_setled, 145 kb8042_polled_setled, 146 kb8042_polled_keycheck, 147 }; 148 149 extern struct keyboard keyindex_pc; 150 151 #define DRIVER_NAME(dip) ddi_driver_name(dip) 152 153 static char module_name[] = "kb8042"; 154 155 static int kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, 156 cred_t *credp); 157 static int kb8042_close(queue_t *qp, int flag, cred_t *credp); 158 static int kb8042_wsrv(); 159 160 struct module_info kb8042_sinfo = { 161 42, /* Module ID */ 162 module_name, 163 0, 32, /* Minimum and maximum packet sizes */ 164 256, 128 /* High and low water marks */ 165 }; 166 167 static struct qinit kb8042_rinit = { 168 NULL, NULL, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 169 }; 170 171 static struct qinit kb8042_winit = { 172 putq, kb8042_wsrv, kb8042_open, kb8042_close, NULL, &kb8042_sinfo, NULL 173 }; 174 175 struct streamtab 176 kb8042_str_info = { &kb8042_rinit, &kb8042_winit, NULL, NULL }; 177 178 struct kb8042 Kdws = {0}; 179 static dev_info_t *kb8042_dip = NULL; 180 181 static int kb8042_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 182 void **result); 183 static int kb8042_attach(dev_info_t *, ddi_attach_cmd_t); 184 static int kb8042_detach(dev_info_t *, ddi_detach_cmd_t); 185 186 static struct cb_ops cb_kb8042_ops = { 187 nulldev, /* cb_open */ 188 nulldev, /* cb_close */ 189 nodev, /* cb_strategy */ 190 nodev, /* cb_print */ 191 nodev, /* cb_dump */ 192 nodev, /* cb_read */ 193 nodev, /* cb_write */ 194 nodev, /* cb_ioctl */ 195 nodev, /* cb_devmap */ 196 nodev, /* cb_mmap */ 197 nodev, /* cb_segmap */ 198 nochpoll, /* cb_chpoll */ 199 ddi_prop_op, /* cb_prop_op */ 200 &kb8042_str_info, /* cb_stream */ 201 D_MP 202 }; 203 204 struct dev_ops kb8042_ops = { 205 DEVO_REV, /* devo_rev */ 206 0, /* devo_refcnt */ 207 kb8042_getinfo, /* devo_getinfo */ 208 nulldev, /* devo_identify */ 209 nulldev, /* devo_probe */ 210 kb8042_attach, /* devo_attach */ 211 kb8042_detach, /* devo_detach */ 212 nodev, /* devo_reset */ 213 &cb_kb8042_ops, /* devo_cb_ops */ 214 (struct bus_ops *)NULL, /* devo_bus_ops */ 215 NULL, /* devo_power */ 216 ddi_quiesce_not_needed, /* devo_quiesce */ 217 }; 218 219 220 /* 221 * This is the loadable module wrapper. 222 */ 223 #include <sys/modctl.h> 224 225 /* 226 * Module linkage information for the kernel. 227 */ 228 static struct modldrv modldrv = { 229 &mod_driverops, /* Type of module. This one is a driver */ 230 "PS/2 keyboard driver", 231 &kb8042_ops, /* driver ops */ 232 }; 233 234 static struct modlinkage modlinkage = { 235 MODREV_1, 236 (void *) &modldrv, 237 NULL 238 }; 239 240 int 241 _init(void) 242 { 243 int rv; 244 245 rv = mod_install(&modlinkage); 246 return (rv); 247 } 248 249 250 int 251 _fini(void) 252 { 253 return (mod_remove(&modlinkage)); 254 } 255 256 int 257 _info(struct modinfo *modinfop) 258 { 259 return (mod_info(&modlinkage, modinfop)); 260 } 261 262 #ifdef __sparc 263 static boolean_t 264 kb8042_is_input_avail(struct kb8042 *kb8042, int timeout_usec, boolean_t polled) 265 { 266 int i; 267 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_AVAIL : 268 I8042_INT_INPUT_AVAIL; 269 int reps = timeout_usec / USECS_PER_WAIT; 270 271 for (i = 0; i < reps; i++) { 272 if (ddi_get8(kb8042->handle, kb8042->addr + port) != 0) 273 return (B_TRUE); 274 275 if (i < (reps - 1)) 276 drv_usecwait(USECS_PER_WAIT); 277 } 278 return (B_FALSE); 279 } 280 281 static void 282 kb8042_clear_input_buffer(struct kb8042 *kb8042, boolean_t polled) 283 { 284 int port = (polled == B_TRUE) ? I8042_POLL_INPUT_DATA : 285 I8042_INT_INPUT_DATA; 286 287 while (kb8042_is_input_avail(kb8042, MIN_DELAY_USECS, polled)) { 288 (void) ddi_get8(kb8042->handle, kb8042->addr + port); 289 } 290 } 291 292 /* 293 * kb8042_send_and_expect does all its I/O via polling interfaces 294 */ 295 static boolean_t 296 kb8042_send_and_expect(struct kb8042 *kb8042, uint8_t send, uint8_t expect, 297 int timeout, int *error, uint8_t *got) 298 { 299 uint8_t datab; 300 int err; 301 boolean_t rval; 302 303 ddi_put8(kb8042->handle, 304 kb8042->addr + I8042_POLL_OUTPUT_DATA, send); 305 306 if (kb8042_is_input_avail(kb8042, timeout, B_TRUE)) { 307 err = 0; 308 datab = ddi_get8(kb8042->handle, 309 kb8042->addr + I8042_POLL_INPUT_DATA); 310 rval = ((datab == expect) ? B_TRUE : B_FALSE); 311 } else { 312 err = EAGAIN; 313 rval = B_FALSE; 314 } 315 316 if (error != NULL) 317 *error = err; 318 if (got != NULL) 319 *got = datab; 320 return (rval); 321 } 322 323 static const char * 324 kb8042_error_string(int errcode) 325 { 326 switch (errcode) { 327 case EAGAIN: 328 return ("Timed out"); 329 default: 330 return ("Unknown error"); 331 } 332 } 333 334 /* 335 * kb8042_read_scanset works properly because it is called before ddi_add_intr 336 * (if it is called after ddi_add_intr, i8042_intr would call kb8042_intr 337 * instead of just storing the data that comes in from the keyboard, which 338 * would prevent the code here from getting it.) 339 */ 340 static int 341 kb8042_read_scanset(struct kb8042 *kb8042) 342 { 343 int scanset = -1; 344 int err; 345 uint8_t got; 346 347 kb8042_clear_input_buffer(kb8042, B_TRUE); 348 349 /* 350 * Send a "change scan code set" command to the keyboard. 351 * It should respond with an ACK. 352 */ 353 if (kb8042_send_and_expect(kb8042, KB_SET_SCAN, KB_ACK, MAX_WAIT_USECS, 354 &err, &got) != B_TRUE) { 355 goto fail_read_scanset; 356 } 357 358 /* 359 * Send a 0. The keyboard should ACK the 0, then it should send the 360 * scan code set in use. 361 */ 362 if (kb8042_send_and_expect(kb8042, 0, KB_ACK, MAX_WAIT_USECS, &err, 363 &got) != B_TRUE) { 364 goto fail_read_scanset; 365 } 366 367 /* 368 * The next input byte from the keyboard should be the scan code 369 * set in use, though some keyboards like to send a few more acks 370 * just for fun, so blow past those to get the keyboard scan code. 371 */ 372 while (kb8042_is_input_avail(kb8042, MAX_WAIT_USECS, B_TRUE) && 373 (scanset = ddi_get8(kb8042->handle, 374 kb8042->addr + I8042_POLL_INPUT_DATA)) == KB_ACK) 375 ; 376 377 #ifdef DEBUG 378 cmn_err(CE_NOTE, "!Scan code set from keyboard is `%d'.", 379 scanset); 380 #endif 381 382 return (scanset); 383 384 fail_read_scanset: 385 #ifdef DEBUG 386 if (err == 0) 387 cmn_err(CE_NOTE, "Could not read current scan set from " 388 "keyboard: %s. (Expected 0x%x, but got 0x%x).", 389 kb8042_error_string(err), KB_ACK, got); 390 else 391 cmn_err(CE_NOTE, "Could not read current scan set from " 392 "keyboard: %s.", kb8042_error_string(err)); 393 #endif 394 return (-1); 395 } 396 #endif 397 398 static int 399 kb8042_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 400 { 401 int rc; 402 int scanset; 403 int leds; 404 405 struct kb8042 *kb8042 = &Kdws; 406 static ddi_device_acc_attr_t attr = { 407 DDI_DEVICE_ATTR_V0, 408 DDI_NEVERSWAP_ACC, 409 DDI_STRICTORDER_ACC, 410 }; 411 412 switch (cmd) { 413 case DDI_RESUME: 414 leds = kb8042->leds.commanded; 415 kb8042->w_init = 0; 416 kb8042_init(kb8042, B_TRUE); 417 kb8042_setled(kb8042, leds, B_FALSE); 418 mutex_enter(&kb8042->w_hw_mutex); 419 kb8042->suspended = B_FALSE; 420 if (kb8042->w_qp != NULL) { 421 enableok(WR(kb8042->w_qp)); 422 qenable(WR(kb8042->w_qp)); 423 } 424 cv_broadcast(&kb8042->suspend_cv); 425 mutex_exit(&kb8042->w_hw_mutex); 426 return (DDI_SUCCESS); 427 428 case DDI_ATTACH: 429 if (kb8042_dip != NULL) 430 return (DDI_FAILURE); 431 /* The rest of the function is for attach */ 432 break; 433 434 default: 435 return (DDI_FAILURE); 436 } 437 438 kb8042->debugger.mod1 = 58; /* Left Ctrl */ 439 kb8042->debugger.mod2 = 60; /* Left Alt */ 440 kb8042->debugger.trigger = 33; /* D */ 441 kb8042->debugger.mod1_down = B_FALSE; 442 kb8042->debugger.mod2_down = B_FALSE; 443 kb8042->debugger.enabled = B_FALSE; 444 445 kb8042_dip = devi; 446 kb8042->init_state = KB8042_UNINITIALIZED; 447 448 kb8042->polled_synthetic_release_pending = B_FALSE; 449 450 if (ddi_create_minor_node(devi, module_name, S_IFCHR, 0, 451 DDI_NT_KEYBOARD, 0) == DDI_FAILURE) { 452 goto failure; 453 } 454 455 kb8042->init_state |= KB8042_MINOR_NODE_CREATED; 456 457 rc = ddi_regs_map_setup(devi, 0, (caddr_t *)&kb8042->addr, 458 (offset_t)0, (offset_t)0, &attr, &kb8042->handle); 459 if (rc != DDI_SUCCESS) { 460 #ifdef DEBUG 461 cmn_err(CE_WARN, "kb8042_attach: can't map registers"); 462 #endif 463 goto failure; 464 } 465 466 kb8042->init_state |= KB8042_REGS_MAPPED; 467 468 if (ddi_get_iblock_cookie(devi, 0, &kb8042->w_iblock) != 469 DDI_SUCCESS) { 470 cmn_err(CE_WARN, "kb8042_attach: Can't get iblock cookie"); 471 goto failure; 472 } 473 474 mutex_init(&kb8042->w_hw_mutex, NULL, MUTEX_DRIVER, kb8042->w_iblock); 475 cv_init(&kb8042->ops_cv, NULL, CV_DRIVER, NULL); 476 cv_init(&kb8042->suspend_cv, NULL, CV_DRIVER, NULL); 477 cv_init(&kb8042->cmd_cv, NULL, CV_DRIVER, NULL); 478 kb8042->init_state |= KB8042_HW_MUTEX_INITTED; 479 480 kb8042_init(kb8042, B_FALSE); 481 482 #ifdef __sparc 483 /* Detect the scan code set currently in use */ 484 scanset = kb8042_read_scanset(kb8042); 485 486 if (scanset < 0 && kb8042_warn_unknown_scanset) { 487 488 cmn_err(CE_WARN, "Cannot determine keyboard scan code set "); 489 cmn_err(CE_CONT, "(is the keyboard plugged in?). "); 490 cmn_err(CE_CONT, "Defaulting to scan code set %d. If the " 491 "keyboard does not ", kb8042_default_scanset); 492 cmn_err(CE_CONT, "work properly, add " 493 "`set kb8042:kb8042_default_scanset=%d' to /etc/system ", 494 (kb8042_default_scanset == 1) ? 2 : 1); 495 cmn_err(CE_CONT, "(via network or with a USB keyboard) and " 496 "restart the system. If you "); 497 cmn_err(CE_CONT, "do not want to see this message in the " 498 "future, add "); 499 cmn_err(CE_CONT, "`set kb8042:kb8042_warn_unknown_scanset=0' " 500 "to /etc/system.\n"); 501 502 /* Use the default scan code set. */ 503 scanset = kb8042_default_scanset; 504 } 505 #else 506 /* x86 systems use scan code set 1 -- no detection required */ 507 scanset = 1; 508 #endif 509 if (KeyboardConvertScan_init(kb8042, scanset) != DDI_SUCCESS) { 510 cmn_err(CE_WARN, "Cannot initialize keyboard scan converter: " 511 "Unknown scan code set `%d'.", scanset); 512 /* Scan code set is not supported */ 513 goto failure; 514 } 515 516 /* 517 * Turn on interrupts... 518 */ 519 if (ddi_add_intr(devi, 0, 520 &kb8042->w_iblock, (ddi_idevice_cookie_t *)NULL, 521 kb8042_intr, (caddr_t)kb8042) != DDI_SUCCESS) { 522 cmn_err(CE_WARN, "kb8042_attach: cannot add interrupt"); 523 goto failure; 524 } 525 526 kb8042->init_state |= KB8042_INTR_ADDED; 527 528 ddi_report_dev(devi); 529 530 #ifdef DEBUG 531 cmn_err(CE_CONT, "?%s instance #%d READY\n", 532 DRIVER_NAME(devi), ddi_get_instance(devi)); 533 #endif 534 535 return (DDI_SUCCESS); 536 537 failure: 538 kb8042_cleanup(kb8042); 539 return (DDI_FAILURE); 540 } 541 542 static int 543 kb8042_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 544 { 545 struct kb8042 *kb8042 = &Kdws; 546 547 switch (cmd) { 548 case DDI_SUSPEND: 549 mutex_enter(&kb8042->w_hw_mutex); 550 ASSERT(kb8042->ops >= 0); 551 while (kb8042->ops > 0) 552 cv_wait(&kb8042->ops_cv, &kb8042->w_hw_mutex); 553 kb8042->suspended = B_TRUE; 554 mutex_exit(&kb8042->w_hw_mutex); 555 return (DDI_SUCCESS); 556 557 case DDI_DETACH: 558 /* If someone has a stream open, fail to detach */ 559 if (kb8042->w_qp != NULL) 560 return (DDI_FAILURE); 561 562 ASSERT(kb8042_dip == dip); 563 564 kb8042_cleanup(kb8042); 565 566 return (DDI_SUCCESS); 567 568 default: 569 return (DDI_FAILURE); 570 } 571 } 572 573 /*ARGSUSED*/ 574 static int 575 kb8042_getinfo( 576 dev_info_t *dip, 577 ddi_info_cmd_t infocmd, 578 void *arg, 579 void **result) 580 { 581 register int error; 582 583 switch (infocmd) { 584 case DDI_INFO_DEVT2DEVINFO: 585 if (kb8042_dip == NULL) { 586 error = DDI_FAILURE; 587 } else { 588 *result = (void *) kb8042_dip; 589 error = DDI_SUCCESS; 590 } 591 break; 592 case DDI_INFO_DEVT2INSTANCE: 593 *result = (void *)0; 594 error = DDI_SUCCESS; 595 break; 596 default: 597 error = DDI_FAILURE; 598 break; 599 } 600 return (error); 601 } 602 603 static void 604 kb8042_cleanup(struct kb8042 *kb8042) 605 { 606 ASSERT(kb8042_dip != NULL); 607 608 if (kb8042->init_state & KB8042_INTR_ADDED) 609 ddi_remove_intr(kb8042_dip, 0, kb8042->w_iblock); 610 611 if (kb8042->init_state & KB8042_HW_MUTEX_INITTED) { 612 cv_destroy(&kb8042->cmd_cv); 613 cv_destroy(&kb8042->suspend_cv); 614 cv_destroy(&kb8042->ops_cv); 615 mutex_destroy(&kb8042->w_hw_mutex); 616 } 617 618 if (kb8042->init_state & KB8042_REGS_MAPPED) 619 ddi_regs_map_free(&kb8042->handle); 620 621 if (kb8042->init_state & KB8042_MINOR_NODE_CREATED) 622 ddi_remove_minor_node(kb8042_dip, NULL); 623 624 kb8042->init_state = KB8042_UNINITIALIZED; 625 kb8042_dip = NULL; 626 } 627 628 static void 629 kb8042_init(struct kb8042 *kb8042, boolean_t from_resume) 630 { 631 if (kb8042->w_init) 632 return; 633 634 if (!from_resume) { 635 kb8042->w_kblayout = 0; /* Default to US */ 636 kb8042->w_qp = (queue_t *)NULL; 637 kb8042->simulated_kbd_type = KB_PC; 638 kb8042->leds.commanded = -1; /* Unknown initial state */ 639 kb8042->leds.desired = -1; /* Unknown initial state */ 640 } 641 642 kb8042_wait_poweron(kb8042); 643 644 kb8042->kb_old_key_pos = 0; 645 646 /* 647 * Explicitly grab and release the 8042 lock outside of 648 * kb8042_send_to_keyboard, because this is the only situation 649 * where a polling interface is used with locking required. 650 */ 651 (void) ddi_get8(kb8042->handle, kb8042->addr + I8042_LOCK); 652 /* Set up the command state machine and start it running. */ 653 kb8042_send_to_keyboard(kb8042, KB_ENABLE, B_TRUE); 654 (void) ddi_get8(kb8042->handle, kb8042->addr + I8042_UNLOCK); 655 656 kb8042->w_init++; 657 658 (void) drv_setparm(SYSRINT, 1); /* reset keyboard interrupts */ 659 } 660 661 /*ARGSUSED2*/ 662 static int 663 kb8042_open(queue_t *qp, dev_t *devp, int flag, int sflag, cred_t *credp) 664 { 665 struct kb8042 *kb8042; 666 int err; 667 int initial_leds; 668 int initial_led_mask; 669 670 kb8042 = &Kdws; 671 672 mutex_enter(&kb8042->w_hw_mutex); 673 while (kb8042->suspended) { 674 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 675 0) { 676 mutex_exit(&kb8042->w_hw_mutex); 677 return (EINTR); 678 } 679 } 680 681 kb8042->w_dev = *devp; 682 683 if (qp->q_ptr) { 684 mutex_exit(&kb8042->w_hw_mutex); 685 return (0); 686 } 687 qp->q_ptr = (caddr_t)kb8042; 688 WR(qp)->q_ptr = qp->q_ptr; 689 if (!kb8042->w_qp) 690 kb8042->w_qp = qp; 691 692 ASSERT(kb8042->ops >= 0); 693 kb8042->ops++; 694 mutex_exit(&kb8042->w_hw_mutex); 695 696 kb8042_get_initial_leds(kb8042, &initial_leds, &initial_led_mask); 697 err = kbtrans_streams_init(qp, sflag, credp, 698 (struct kbtrans_hardware *)kb8042, &kb8042_callbacks, 699 &kb8042->hw_kbtrans, 700 initial_leds, initial_led_mask); 701 if (err != 0) 702 return (err); 703 704 kbtrans_streams_set_keyboard(kb8042->hw_kbtrans, KB_PC, &keyindex_pc); 705 706 kb8042->polledio.cons_polledio_version = CONSPOLLEDIO_V1; 707 kb8042->polledio.cons_polledio_argument = 708 (cons_polledio_arg_t)kb8042; 709 kb8042->polledio.cons_polledio_putchar = NULL; 710 kb8042->polledio.cons_polledio_getchar = 711 (int (*)(cons_polledio_arg_t))kb8042_polled_getchar; 712 kb8042->polledio.cons_polledio_ischar = 713 (boolean_t (*)(cons_polledio_arg_t))kb8042_polled_ischar; 714 kb8042->polledio.cons_polledio_enter = NULL; 715 kb8042->polledio.cons_polledio_exit = NULL; 716 kb8042->polledio.cons_polledio_setled = 717 (void (*)(cons_polledio_arg_t, int))kb8042_polled_setled; 718 kb8042->polledio.cons_polledio_keycheck = 719 (boolean_t (*)(cons_polledio_arg_t, int *, 720 enum keystate *))kb8042_polled_keycheck; 721 722 qprocson(qp); 723 724 kbtrans_streams_enable(kb8042->hw_kbtrans); 725 726 mutex_enter(&kb8042->w_hw_mutex); 727 ASSERT(kb8042->ops > 0); 728 kb8042->ops--; 729 if (kb8042->ops == 0) 730 cv_broadcast(&kb8042->ops_cv); 731 mutex_exit(&kb8042->w_hw_mutex); 732 733 return (0); 734 } 735 736 /*ARGSUSED1*/ 737 static int 738 kb8042_close(queue_t *qp, int flag, cred_t *credp) 739 { 740 struct kb8042 *kb8042; 741 742 /* If a beep is in progress, stop that */ 743 (void) beeper_off(); 744 745 kb8042 = (struct kb8042 *)qp->q_ptr; 746 747 mutex_enter(&kb8042->w_hw_mutex); 748 while (kb8042->suspended) { 749 if (cv_wait_sig(&kb8042->suspend_cv, &kb8042->w_hw_mutex) == 750 0) { 751 mutex_exit(&kb8042->w_hw_mutex); 752 return (EINTR); 753 } 754 } 755 756 ASSERT(kb8042->ops >= 0); 757 kb8042->ops++; 758 mutex_exit(&kb8042->w_hw_mutex); 759 760 (void) kbtrans_streams_fini(kb8042->hw_kbtrans); 761 762 kb8042->w_qp = (queue_t *)NULL; 763 qprocsoff(qp); 764 765 mutex_enter(&kb8042->w_hw_mutex); 766 ASSERT(kb8042->ops > 0); 767 kb8042->ops--; 768 if (kb8042->ops == 0) 769 cv_broadcast(&kb8042->ops_cv); 770 mutex_exit(&kb8042->w_hw_mutex); 771 772 return (0); 773 } 774 775 static int 776 kb8042_wsrv(queue_t *qp) 777 { 778 struct kb8042 *kb8042; 779 780 mblk_t *mp; 781 boolean_t suspended; 782 783 kb8042 = (struct kb8042 *)qp->q_ptr; 784 785 mutex_enter(&kb8042->w_hw_mutex); 786 suspended = kb8042->suspended; 787 ASSERT(kb8042->ops >= 0); 788 if (!suspended) 789 kb8042->ops++; 790 mutex_exit(&kb8042->w_hw_mutex); 791 792 #ifdef NO_KB_DEBUG 793 while (!suspended && (mp = getq(qp)) != NULL) { 794 #else 795 /* 796 * Not taking keyboard input while suspending can make debugging 797 * difficult. However, we still do the ops counting so that we 798 * don't suspend at a bad time. 799 */ 800 while ((mp = getq(qp))) { 801 #endif 802 switch (kbtrans_streams_message(kb8042->hw_kbtrans, mp)) { 803 case KBTRANS_MESSAGE_HANDLED: 804 continue; 805 case KBTRANS_MESSAGE_NOT_HANDLED: 806 break; 807 } 808 switch (mp->b_datap->db_type) { 809 case M_IOCTL: 810 kb8042_ioctlmsg(kb8042, qp, mp); 811 continue; 812 case M_IOCDATA: 813 kb8042_iocdatamsg(qp, mp); 814 continue; 815 case M_DELAY: 816 case M_STARTI: 817 case M_STOPI: 818 case M_READ: /* ignore, no buffered data */ 819 freemsg(mp); 820 continue; 821 case M_FLUSH: 822 *mp->b_rptr &= ~FLUSHW; 823 if (*mp->b_rptr & FLUSHR) 824 qreply(qp, mp); 825 else 826 freemsg(mp); 827 continue; 828 default: 829 cmn_err(CE_NOTE, "kb8042_wsrv: bad msg %x", 830 mp->b_datap->db_type); 831 freemsg(mp); 832 continue; 833 } 834 } 835 836 mutex_enter(&kb8042->w_hw_mutex); 837 if (!suspended) { 838 ASSERT(kb8042->ops > 0); 839 kb8042->ops--; 840 if (kb8042->ops == 0) 841 cv_broadcast(&kb8042->ops_cv); 842 } 843 mutex_exit(&kb8042->w_hw_mutex); 844 845 return (0); 846 } 847 848 static void 849 kb8042_ioctlmsg(struct kb8042 *kb8042, queue_t *qp, mblk_t *mp) 850 { 851 struct iocblk *iocp; 852 mblk_t *datap; 853 int error; 854 int tmp; 855 int cycles; 856 int frequency; 857 int msecs; 858 859 iocp = (struct iocblk *)mp->b_rptr; 860 861 switch (iocp->ioc_cmd) { 862 863 case CONSOPENPOLLEDIO: 864 error = miocpullup(mp, sizeof (struct cons_polledio *)); 865 if (error != 0) { 866 miocnak(qp, mp, 0, error); 867 return; 868 } 869 870 /* 871 * We are given an appropriate-sized data block, 872 * and return a pointer to our structure in it. 873 */ 874 *(struct cons_polledio **)mp->b_cont->b_rptr = 875 &kb8042->polledio; 876 mp->b_datap->db_type = M_IOCACK; 877 iocp->ioc_error = 0; 878 qreply(qp, mp); 879 break; 880 881 case CONSCLOSEPOLLEDIO: 882 miocack(qp, mp, 0, 0); 883 break; 884 885 case CONSSETABORTENABLE: 886 if (iocp->ioc_count != TRANSPARENT) { 887 miocnak(qp, mp, 0, EINVAL); 888 return; 889 } 890 891 kb8042->debugger.enabled = *(intptr_t *)mp->b_cont->b_rptr; 892 miocack(qp, mp, 0, 0); 893 break; 894 895 /* 896 * Valid only in TR_UNTRANS_MODE mode. 897 */ 898 case CONSSETKBDTYPE: 899 error = miocpullup(mp, sizeof (int)); 900 if (error != 0) { 901 miocnak(qp, mp, 0, error); 902 return; 903 } 904 tmp = *(int *)mp->b_cont->b_rptr; 905 if (tmp != KB_PC && tmp != KB_USB) { 906 miocnak(qp, mp, 0, EINVAL); 907 break; 908 } 909 kb8042->simulated_kbd_type = tmp; 910 miocack(qp, mp, 0, 0); 911 break; 912 913 case KIOCLAYOUT: 914 if (kb8042->w_kblayout == -1) { 915 miocnak(qp, mp, 0, EINVAL); 916 return; 917 } 918 919 if ((datap = allocb(sizeof (int), BPRI_HI)) == NULL) { 920 miocnak(qp, mp, 0, ENOMEM); 921 return; 922 } 923 924 if (kb8042->simulated_kbd_type == KB_USB) 925 *(int *)datap->b_wptr = KBTRANS_USBKB_DEFAULT_LAYOUT; 926 else 927 *(int *)datap->b_wptr = kb8042->w_kblayout; 928 929 datap->b_wptr += sizeof (int); 930 if (mp->b_cont) 931 freemsg(mp->b_cont); 932 mp->b_cont = datap; 933 iocp->ioc_count = sizeof (int); 934 mp->b_datap->db_type = M_IOCACK; 935 iocp->ioc_error = 0; 936 qreply(qp, mp); 937 break; 938 939 case KIOCSLAYOUT: 940 if (iocp->ioc_count != TRANSPARENT) { 941 miocnak(qp, mp, 0, EINVAL); 942 return; 943 } 944 945 kb8042->w_kblayout = *(intptr_t *)mp->b_cont->b_rptr; 946 miocack(qp, mp, 0, 0); 947 break; 948 949 case KIOCCMD: 950 error = miocpullup(mp, sizeof (int)); 951 if (error != 0) { 952 miocnak(qp, mp, 0, error); 953 return; 954 } 955 956 kb8042_type4_cmd(kb8042, *(int *)mp->b_cont->b_rptr); 957 miocack(qp, mp, 0, 0); 958 break; 959 960 case KIOCMKTONE: 961 if (iocp->ioc_count != TRANSPARENT) { 962 miocnak(qp, mp, 0, EINVAL); 963 return; 964 } 965 966 tmp = (int)(*(intptr_t *)mp->b_cont->b_rptr); 967 cycles = tmp & 0xffff; 968 msecs = (tmp >> 16) & 0xffff; 969 970 if (cycles == 0) 971 frequency = UINT16_MAX; 972 else if (cycles == UINT16_MAX) 973 frequency = 0; 974 else { 975 frequency = (PIT_HZ + cycles / 2) / cycles; 976 if (frequency > UINT16_MAX) 977 frequency = UINT16_MAX; 978 } 979 980 error = beep_mktone(frequency, msecs); 981 if (error != 0) 982 miocnak(qp, mp, 0, error); 983 else 984 miocack(qp, mp, 0, 0); 985 break; 986 987 default: 988 #ifdef DEBUG1 989 cmn_err(CE_NOTE, "!kb8042_ioctlmsg %x", iocp->ioc_cmd); 990 #endif 991 miocnak(qp, mp, 0, EINVAL); 992 return; 993 } 994 } 995 996 /* 997 * Process a byte received from the keyboard 998 */ 999 static void 1000 kb8042_received_byte( 1001 struct kb8042 *kb8042, 1002 int scancode) /* raw scan code */ 1003 { 1004 boolean_t legit; /* is this a legit key pos'n? */ 1005 int key_pos = -1; 1006 enum keystate state; 1007 boolean_t synthetic_release_needed; 1008 1009 /* 1010 * Intercept ACK and RESEND and signal the condition that 1011 * kb8042_send_and_wait is waiting for. 1012 */ 1013 if (scancode == KB_ACK) { 1014 mutex_enter(&kb8042->w_hw_mutex); 1015 kb8042->acked = 1; 1016 cv_signal(&kb8042->cmd_cv); 1017 mutex_exit(&kb8042->w_hw_mutex); 1018 return; 1019 } else if (scancode == KB_RESEND) { 1020 mutex_enter(&kb8042->w_hw_mutex); 1021 kb8042->need_retry = 1; 1022 cv_signal(&kb8042->cmd_cv); 1023 mutex_exit(&kb8042->w_hw_mutex); 1024 return; 1025 } 1026 1027 if (!kb8042->w_init) /* can't do anything anyway */ 1028 return; 1029 1030 legit = KeyboardConvertScan(kb8042, scancode, &key_pos, &state, 1031 &synthetic_release_needed); 1032 1033 if (legit == 0) { 1034 /* Eaten by translation */ 1035 return; 1036 } 1037 1038 /* 1039 * Don't know if we want this permanently, but it seems interesting 1040 * for the moment. 1041 */ 1042 if (key_pos == kb8042->debugger.mod1) { 1043 kb8042->debugger.mod1_down = (state == KEY_PRESSED); 1044 } 1045 if (key_pos == kb8042->debugger.mod2) { 1046 kb8042->debugger.mod2_down = (state == KEY_PRESSED); 1047 } 1048 if (kb8042->debugger.enabled && 1049 key_pos == kb8042->debugger.trigger && 1050 kb8042->debugger.mod1_down && 1051 kb8042->debugger.mod2_down) { 1052 /* 1053 * Require new presses of the modifiers. 1054 */ 1055 kb8042->debugger.mod1_down = B_FALSE; 1056 kb8042->debugger.mod2_down = B_FALSE; 1057 abort_sequence_enter(NULL); 1058 return; 1059 } 1060 1061 /* 1062 * If there's no queue above us - as can happen if we've been 1063 * attached but not opened - drop the keystroke. 1064 * Note that we do this here instead of above so that 1065 * Ctrl-Alt-D still works. 1066 */ 1067 if (kb8042->w_qp == NULL) { 1068 return; 1069 } 1070 1071 /* 1072 * This is to filter out auto repeat since it can't be 1073 * turned off at the hardware. (Yeah, yeah, PS/2 keyboards 1074 * can. Don't know whether they've taken over the world. 1075 * Don't think so.) 1076 */ 1077 if (kb8042_autorepeat_detect(kb8042, key_pos, state)) { 1078 return; 1079 } 1080 1081 1082 kb8042_process_key(kb8042, key_pos, state); 1083 1084 /* 1085 * This is a total hack. For some stupid reason, the two additional 1086 * keys on Korean keyboards (Hangul and Hangul/Hanja) report press 1087 * only. We synthesize a release immediately. 1088 */ 1089 if (synthetic_release_needed) { 1090 (void) kb8042_autorepeat_detect(kb8042, key_pos, KEY_RELEASED); 1091 kb8042_process_key(kb8042, key_pos, state); 1092 } 1093 } 1094 1095 1096 static void 1097 kb8042_process_key(struct kb8042 *kb8042, kbtrans_key_t key_pos, 1098 enum keystate state) 1099 { 1100 kbtrans_key_t key; 1101 1102 ASSERT(key_pos >= 0 && key_pos <= 255); 1103 if (kb8042->simulated_kbd_type == KB_PC) { 1104 kbtrans_streams_key(kb8042->hw_kbtrans, key_pos, state); 1105 } else if (kb8042->simulated_kbd_type == KB_USB) { 1106 key = keytab_pc2usb[key_pos]; 1107 if (key != 0) { 1108 kbtrans_streams_key(kb8042->hw_kbtrans, key, state); 1109 } 1110 } 1111 } 1112 1113 /* 1114 * Called from interrupt handler when keyboard interrupt occurs. 1115 */ 1116 static uint_t 1117 kb8042_intr(caddr_t arg) 1118 { 1119 uchar_t scancode; /* raw scan code */ 1120 int rc; 1121 struct kb8042 *kb8042 = (struct kb8042 *)arg; 1122 1123 rc = DDI_INTR_UNCLAIMED; 1124 1125 if (kb8042->init_state == KB8042_UNINITIALIZED) 1126 return (DDI_INTR_UNCLAIMED); 1127 1128 /* don't care if drv_setparm succeeds */ 1129 (void) drv_setparm(SYSRINT, 1); 1130 1131 while (ddi_get8(kb8042->handle, kb8042->addr + I8042_INT_INPUT_AVAIL) 1132 != 0) { 1133 rc = DDI_INTR_CLAIMED; 1134 1135 scancode = ddi_get8(kb8042->handle, 1136 kb8042->addr + I8042_INT_INPUT_DATA); 1137 1138 kb8042_received_byte(kb8042, scancode); 1139 } 1140 1141 return (rc); 1142 } 1143 1144 static void 1145 kb8042_iocdatamsg(queue_t *qp, mblk_t *mp) 1146 { 1147 struct copyresp *csp; 1148 1149 csp = (struct copyresp *)mp->b_rptr; 1150 if (csp->cp_rval) { 1151 freemsg(mp); 1152 return; 1153 } 1154 1155 switch (csp->cp_cmd) { 1156 default: 1157 miocack(qp, mp, 0, 0); 1158 break; 1159 } 1160 } 1161 1162 static boolean_t 1163 kb8042_polled_keycheck( 1164 struct kbtrans_hardware *hw, 1165 int *key, 1166 enum keystate *state) 1167 { 1168 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1169 int scancode; 1170 boolean_t legit; 1171 boolean_t synthetic_release_needed; 1172 1173 if (kb8042->polled_synthetic_release_pending) { 1174 *key = kb8042->polled_synthetic_release_key; 1175 *state = KEY_RELEASED; 1176 kb8042->polled_synthetic_release_pending = B_FALSE; 1177 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1178 return (B_TRUE); 1179 } 1180 1181 for (;;) { 1182 if (ddi_get8(kb8042->handle, 1183 kb8042->addr + I8042_POLL_INPUT_AVAIL) == 0) { 1184 return (B_FALSE); 1185 } 1186 1187 scancode = ddi_get8(kb8042->handle, 1188 kb8042->addr + I8042_POLL_INPUT_DATA); 1189 1190 legit = KeyboardConvertScan(kb8042, scancode, key, state, 1191 &synthetic_release_needed); 1192 if (!legit) { 1193 continue; 1194 } 1195 /* 1196 * For the moment at least, we rely on hardware autorepeat 1197 * for polled I/O autorepeat. However, for coordination 1198 * with the interrupt-driven code, maintain the last key 1199 * pressed. 1200 */ 1201 (void) kb8042_autorepeat_detect(kb8042, *key, *state); 1202 1203 /* 1204 * This is a total hack to support two additional keys 1205 * on Korean keyboards. They report only on press, and 1206 * so we synthesize a release. Most likely this will 1207 * never be important to polled I/O, but if I do it 1208 * "right" the first time it _won't_ be an issue. 1209 */ 1210 if (synthetic_release_needed) { 1211 kb8042->polled_synthetic_release_pending = B_TRUE; 1212 kb8042->polled_synthetic_release_key = *key; 1213 } 1214 1215 if (kb8042->simulated_kbd_type == KB_USB) { 1216 *key = keytab_pc2usb[*key]; 1217 } 1218 return (B_TRUE); 1219 } 1220 } 1221 1222 static void 1223 kb8042_setled(struct kb8042 *kb8042, int led_state, boolean_t polled) 1224 { 1225 kb8042->leds.desired = led_state; 1226 1227 if (!polled) 1228 mutex_enter(&kb8042->w_hw_mutex); 1229 1230 if (kb8042->leds.desired != kb8042->leds.commanded) { 1231 kb8042_send_to_keyboard(kb8042, KB_SET_LED, polled); 1232 } 1233 1234 if (!polled) 1235 mutex_exit(&kb8042->w_hw_mutex); 1236 } 1237 1238 static void 1239 kb8042_polled_setled(struct kbtrans_hardware *hw, int led_state) 1240 { 1241 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1242 kb8042_setled(kb8042, led_state, B_TRUE); 1243 } 1244 1245 static void 1246 kb8042_streams_setled(struct kbtrans_hardware *hw, int led_state) 1247 { 1248 struct kb8042 *kb8042 = (struct kb8042 *)hw; 1249 kb8042_setled(kb8042, led_state, B_FALSE); 1250 } 1251 1252 1253 static int 1254 kb8042_send_and_wait(struct kb8042 *kb8042, uint8_t u8, boolean_t polled) 1255 { 1256 uint8_t *outp = kb8042->addr + 1257 (polled ? I8042_POLL_OUTPUT_DATA : I8042_INT_OUTPUT_DATA); 1258 uint8_t *inavp = kb8042->addr + 1259 (polled ? I8042_POLL_INPUT_AVAIL : I8042_INT_INPUT_AVAIL); 1260 uint8_t *inp = kb8042->addr + 1261 (polled ? I8042_POLL_INPUT_DATA : I8042_INT_INPUT_DATA); 1262 uint8_t b; 1263 int ms_waited; 1264 int timedout; 1265 int expire; 1266 int retries = 0; 1267 1268 do { 1269 kb8042->acked = 0; 1270 kb8042->need_retry = 0; 1271 ms_waited = 0; /* Zero it whether polled or not */ 1272 timedout = 0; 1273 1274 ddi_put8(kb8042->handle, outp, u8); 1275 1276 while (!kb8042->acked && !kb8042->need_retry && !timedout) { 1277 1278 if (polled) { 1279 if (ddi_get8(kb8042->handle, inavp)) { 1280 b = ddi_get8(kb8042->handle, inp); 1281 switch (b) { 1282 case KB_ACK: 1283 kb8042->acked = 1; 1284 break; 1285 case KB_RESEND: 1286 kb8042->need_retry = 1; 1287 break; 1288 default: 1289 /* 1290 * drop it: We should never 1291 * get scancodes while 1292 * we're in the middle of a 1293 * command anyway. 1294 */ 1295 #ifdef DEBUG 1296 cmn_err(CE_WARN, "!Unexpected " 1297 " byte 0x%x", b); 1298 #endif 1299 break; 1300 } 1301 } 1302 1303 /* 1304 * Wait 1ms if an ACK wasn't received yet 1305 */ 1306 if (!kb8042->acked) { 1307 drv_usecwait(1000); 1308 ms_waited++; 1309 if (ms_waited >= MAX_KB8042_WAIT_MAX_MS) 1310 timedout = B_TRUE; 1311 } 1312 } else { 1313 /* Interrupt-driven */ 1314 expire = ddi_get_lbolt() + 1315 drv_usectohz(MAX_KB8042_WAIT_MAX_MS * 1000); 1316 1317 /* 1318 * If cv_timedwait returned -1 and we neither 1319 * received an ACK nor a RETRY response, then 1320 * we timed out. 1321 */ 1322 if (cv_timedwait(&kb8042->cmd_cv, 1323 &kb8042->w_hw_mutex, expire) == -1 && 1324 !kb8042->acked && !kb8042->need_retry) { 1325 timedout = B_TRUE; 1326 } 1327 } 1328 1329 } 1330 } while ((kb8042->need_retry || timedout) && 1331 ++retries < MAX_KB8042_RETRIES); 1332 1333 return (kb8042->acked); 1334 } 1335 1336 /* 1337 * kb8042_send_to_keyboard should be called with w_hw_mutex held if 1338 * polled is FALSE. 1339 */ 1340 static void 1341 kb8042_send_to_keyboard(struct kb8042 *kb8042, int byte, boolean_t polled) 1342 { 1343 1344 /* 1345 * KB_SET_LED and KB_ENABLE are special commands which require blocking 1346 * other 8042 consumers while executing. 1347 * 1348 * Other commands/data are sent using the single put8 I/O access 1349 * function. 1350 */ 1351 if (byte == KB_SET_LED) { 1352 1353 if (!polled) { 1354 (void) ddi_get8(kb8042->handle, kb8042->addr + 1355 I8042_LOCK); 1356 } 1357 1358 if (kb8042_send_and_wait(kb8042, KB_SET_LED, polled)) { 1359 /* 1360 * Ignore return value, as there's nothing we can 1361 * do about it if the SET LED command fails. 1362 */ 1363 (void) kb8042_send_and_wait(kb8042, 1364 kb8042_xlate_leds(kb8042->leds.desired), polled); 1365 } 1366 1367 if (!polled) { 1368 (void) ddi_get8(kb8042->handle, kb8042->addr + 1369 I8042_UNLOCK); 1370 } 1371 kb8042->leds.commanded = kb8042->leds.desired; 1372 1373 } else if (byte == KB_ENABLE) { 1374 1375 if (!polled) { 1376 (void) ddi_get8(kb8042->handle, kb8042->addr + 1377 I8042_LOCK); 1378 } 1379 1380 (void) kb8042_send_and_wait(kb8042, KB_ENABLE, polled); 1381 1382 if (!polled) { 1383 (void) ddi_get8(kb8042->handle, kb8042->addr + 1384 I8042_UNLOCK); 1385 } 1386 1387 } else { 1388 /* All other commands use the "normal" virtual output port */ 1389 if (polled) { 1390 ddi_put8(kb8042->handle, 1391 kb8042->addr + I8042_POLL_OUTPUT_DATA, byte); 1392 } else { 1393 ddi_put8(kb8042->handle, 1394 kb8042->addr + I8042_INT_OUTPUT_DATA, byte); 1395 } 1396 } 1397 } 1398 1399 /* 1400 * Wait until the keyboard is fully up, maybe. 1401 * We may be the first person to talk to the keyboard, in which case 1402 * it's patiently waiting to say "AA" to us to tell us it's up. 1403 * In theory it sends the AA in 300ms < n < 9s, but it's a pretty 1404 * good bet that we've already spent that long getting to that point, 1405 * so we'll only wait long enough for the communications electronics to 1406 * run. 1407 */ 1408 static void 1409 kb8042_wait_poweron(struct kb8042 *kb8042) 1410 { 1411 int cnt; 1412 int ready; 1413 1414 /* wait for up to 250 ms for a response */ 1415 for (cnt = 0; cnt < 250; cnt++) { 1416 ready = ddi_get8(kb8042->handle, 1417 kb8042->addr + I8042_INT_INPUT_AVAIL); 1418 if (ready != 0) 1419 break; 1420 drv_usecwait(1000); 1421 } 1422 1423 /* 1424 * If there's something pending, read and discard it. If not, 1425 * assume things are OK anyway - maybe somebody else ate it 1426 * already. (On a PC, the BIOS almost certainly did.) 1427 */ 1428 if (ready != 0) { 1429 (void) ddi_get8(kb8042->handle, 1430 kb8042->addr + I8042_INT_INPUT_DATA); 1431 } 1432 } 1433 1434 static int 1435 kb8042_xlate_leds(int led) 1436 { 1437 int res; 1438 1439 res = 0; 1440 1441 if (led & LED_NUM_LOCK) 1442 res |= LED_NUM; 1443 if (led & LED_SCROLL_LOCK) 1444 res |= LED_SCR; 1445 if (led & LED_CAPS_LOCK) 1446 res |= LED_CAP; 1447 1448 return (res); 1449 } 1450 1451 /*ARGSUSED*/ 1452 static void 1453 kb8042_get_initial_leds( 1454 struct kb8042 *kb8042, 1455 int *initial_leds, 1456 int *initial_led_mask) 1457 { 1458 #if defined(__i386) || defined(__amd64) 1459 extern caddr_t p0_va; 1460 uint8_t bios_kb_flag; 1461 1462 bios_kb_flag = p0_va[BIOS_KB_FLAG]; 1463 1464 *initial_led_mask = LED_CAPS_LOCK | LED_NUM_LOCK | LED_SCROLL_LOCK; 1465 *initial_leds = 0; 1466 if (bios_kb_flag & BIOS_CAPS_STATE) 1467 *initial_leds |= LED_CAPS_LOCK; 1468 if (bios_kb_flag & BIOS_NUM_STATE) 1469 *initial_leds |= LED_NUM_LOCK; 1470 if (bios_kb_flag & BIOS_SCROLL_STATE) 1471 *initial_leds |= LED_SCROLL_LOCK; 1472 #else 1473 *initial_leds = 0; 1474 *initial_led_mask = 0; 1475 #endif 1476 } 1477 1478 static boolean_t 1479 kb8042_autorepeat_detect( 1480 struct kb8042 *kb8042, 1481 int key_pos, 1482 enum keystate state) 1483 { 1484 if (state == KEY_RELEASED) { 1485 if (kb8042->kb_old_key_pos == key_pos) 1486 kb8042->kb_old_key_pos = 0; 1487 } else { 1488 if (kb8042->kb_old_key_pos == key_pos) { 1489 return (B_TRUE); 1490 } 1491 kb8042->kb_old_key_pos = key_pos; 1492 } 1493 return (B_FALSE); 1494 } 1495 1496 /* ARGSUSED */ 1497 static void 1498 kb8042_type4_cmd(struct kb8042 *kb8042, int cmd) 1499 { 1500 switch (cmd) { 1501 case KBD_CMD_BELL: 1502 (void) beeper_on(BEEP_TYPE4); 1503 break; 1504 case KBD_CMD_NOBELL: 1505 (void) beeper_off(); 1506 break; 1507 } 1508 } 1509 1510 1511 /* 1512 * This is a pass-thru routine to get a character at poll time. 1513 */ 1514 static int 1515 kb8042_polled_getchar(cons_polledio_arg_t arg) 1516 { 1517 struct kb8042 *kb8042; 1518 1519 kb8042 = (struct kb8042 *)arg; 1520 1521 return (kbtrans_getchar(kb8042->hw_kbtrans)); 1522 } 1523 1524 /* 1525 * This is a pass-thru routine to get a character at poll time. 1526 */ 1527 static int 1528 kb8042_polled_ischar(cons_polledio_arg_t arg) 1529 { 1530 struct kb8042 *kb8042; 1531 1532 kb8042 = (struct kb8042 *)arg; 1533 1534 return (kbtrans_ischar(kb8042->hw_kbtrans)); 1535 } 1536