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 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * This module performs two functions. First, it kicks off the driver loading 31 * of the console devices during boot in dynamic_console_config(). 32 * The loading of the drivers for the console devices triggers the 33 * additional device autoconfiguration to link the drivers into the keyboard 34 * and mouse console streams. 35 * 36 * The second function of this module is to provide the dacf functions 37 * to be called after a driver has attached and before it detaches. For 38 * example, a driver associated with the keyboard will have kb_config called 39 * after the driver attaches and kb_unconfig before it detaches. Similar 40 * configuration actions are performed on behalf of minor nodes representing 41 * mice. The configuration functions for the attach case take a module 42 * name as a parameter. The module is pushed on top of the driver during 43 * the configuration. 44 * 45 * Although the dacf framework is used to configure all keyboards and mice, 46 * its primary function is to allow keyboard and mouse hotplugging. 47 * 48 * This module supports multiple keyboards and mice at the same time. 49 * 50 * From the kernel perspective, there are roughly three different possible 51 * console configurations. Across these three configurations, the following 52 * elements are constant: 53 * wsconsvp = IWSCN_PATH 54 * rwsconsvp = WC_PATH 55 * consms -> msdev 56 * 57 * The "->" syntax indicates that the streams device on the right is 58 * linked under the streams device on the left. 59 * 60 * The following lists how the system is configured for different setups: 61 * 62 * stdin is a local keyboard. use stdin and stdout as the console. 63 * sp->cons_input_type = CONSOLE_LOCAL 64 * rconsvp = IWSCN_PATH 65 * wc -> conskbd -> kbddev 66 * 67 * stdin is not a keyboard and stdin is the same as stdout. 68 * assume we running on a tip line and use stdin/stdout as the console. 69 * sp->cons_input_type = CONSOLE_TIP 70 * rconsvp = (stdindev/stdoutdev) 71 * wc -> conskbd -> kbddev 72 * 73 * stdin is not a keyboard device and it's not the same as stdout. 74 * assume we have a serial keyboard hooked up and use it along with 75 * stdout as the console. 76 * sp->cons_input_type = CONSOLE_SERIAL_KEYBOARD 77 * rconsvp = IWSCN_PATH 78 * wc -> stdindev 79 * conskbd -> kbddev 80 * 81 * CAVEAT: 82 * The above is all true except for one possible Intel configuration. 83 * If stdin is set to a local keyboard but stdout is set to something 84 * other than the local display (a tip port for example) stdout will 85 * still go to the local display. This is an artifact of the console 86 * implementation on intel. 87 */ 88 89 #include <sys/types.h> 90 #include <sys/param.h> 91 #include <sys/cmn_err.h> 92 #include <sys/user.h> 93 #include <sys/vfs.h> 94 #include <sys/vnode.h> 95 #include <sys/pathname.h> 96 #include <sys/systm.h> 97 #include <sys/file.h> 98 #include <sys/stropts.h> 99 #include <sys/stream.h> 100 #include <sys/strsubr.h> 101 102 #include <sys/consdev.h> 103 #include <sys/console.h> 104 #include <sys/wscons.h> 105 #include <sys/kbio.h> 106 #include <sys/debug.h> 107 #include <sys/reboot.h> 108 #include <sys/termios.h> 109 110 #include <sys/ddi.h> 111 #include <sys/sunddi.h> 112 #include <sys/sunldi.h> 113 #include <sys/sunndi.h> 114 #include <sys/ndi_impldefs.h> 115 #include <sys/modctl.h> 116 #include <sys/ddi_impldefs.h> 117 #include <sys/ddi_implfuncs.h> 118 #include <sys/promif.h> 119 #include <sys/fs/snode.h> 120 121 #include <sys/errno.h> 122 #include <sys/devops.h> 123 #include <sys/note.h> 124 125 #include <sys/tem_impl.h> 126 #include <sys/polled_io.h> 127 #include <sys/kmem.h> 128 #include <sys/dacf.h> 129 #include <sys/consconfig_dacf.h> 130 #include <sys/log.h> 131 #include <sys/disp.h> 132 133 /* 134 * External global variables 135 */ 136 extern vnode_t *rconsvp; 137 extern dev_t rwsconsdev; 138 139 /* 140 * External functions 141 */ 142 extern uintptr_t space_fetch(char *key); 143 extern int space_store(char *key, uintptr_t ptr); 144 145 /* 146 * Tasks 147 */ 148 static int kb_config(dacf_infohdl_t, dacf_arghdl_t, int); 149 static int kb_unconfig(dacf_infohdl_t, dacf_arghdl_t, int); 150 static int ms_config(dacf_infohdl_t, dacf_arghdl_t, int); 151 static int ms_unconfig(dacf_infohdl_t, dacf_arghdl_t, int); 152 153 /* 154 * Internal functions 155 */ 156 static int consconfig_setmodes(dev_t dev, struct termios *termiosp); 157 static void consconfig_check_phys_kbd(cons_state_t *); 158 static void consconfig_rem_dev(cons_state_t *, dev_t); 159 static void consconfig_add_dev(cons_state_t *, cons_prop_t *); 160 static cons_prop_t *consconfig_find_dev(cons_state_t *, dev_t); 161 static void consconfig_free_prop(cons_prop_t *prop); 162 static void flush_usb_serial_buf(void); 163 164 165 /* 166 * On supported configurations, the firmware defines the keyboard and mouse 167 * paths. However, during USB development, it is useful to be able to use 168 * the USB keyboard and mouse on machines without full USB firmware support. 169 * These variables may be set in /etc/system according to a machine's 170 * USB configuration. This module will override the firmware's values 171 * with these. 172 * 173 * NOTE: 174 * The master copies of these variables in the misc/consconfig module. 175 * The reason for this is historic. In versions of solaris up to and 176 * including solaris 9 the conscole configuration code was split into a 177 * seperate sparc and intel version. These variables were defined 178 * in misc/consconfig on sparc and dacf/consconfig_dacf on intel. 179 * 180 * Unfortunatly the sparc variables were well documented. 181 * So to aviod breaking either sparc or intel we'll declare the variables 182 * in both modules. This will allow any /etc/system entries that 183 * users may have to continue working. 184 * 185 * The variables in misc/consconfig will take precedence over the variables 186 * found in this file. Since we eventually want to remove the variables 187 * local to this this file, if the user set them we'll emmit an error 188 * message telling them they need to set the variables in misc/consconfig 189 * instead. 190 */ 191 static char *usb_kb_path = NULL; 192 static char *usb_ms_path = NULL; 193 194 /* 195 * Access functions in the misc/consconfig module used to retrieve the 196 * values of it local usb_kb_path and usb_ms_path variables 197 */ 198 extern char *consconfig_get_usb_kb_path(); 199 extern char *consconfig_get_usb_ms_path(); 200 201 /* 202 * Local variables used to store the value of the usb_kb_path and 203 * usb_ms_path variables found in misc/consconfig 204 */ 205 static char *consconfig_usb_kb_path = NULL; 206 static char *consconfig_usb_ms_path = NULL; 207 208 /* 209 * Internal variables 210 */ 211 static dev_t stdoutdev; 212 static cons_state_t *consconfig_sp; 213 214 /* 215 * consconfig_errlevel: debug verbosity; smaller numbers are more 216 * verbose. 217 */ 218 int consconfig_errlevel = DPRINT_L3; 219 220 /* 221 * Baud rate table 222 */ 223 #define MAX_SPEEDS 24 224 static struct speed { 225 char *name; 226 int code; 227 } speedtab[MAX_SPEEDS] = { 228 {"0", B0}, {"50", B50}, {"75", B75}, 229 {"110", B110}, {"134", B134}, {"150", B150}, 230 {"200", B200}, {"300", B300}, {"600", B600}, 231 {"1200", B1200}, {"1800", B1800}, {"2400", B2400}, 232 {"4800", B4800}, {"9600", B9600}, {"19200", B19200}, 233 {"38400", B38400}, {"57600", B57600}, {"76800", B76800}, 234 {"115200", B115200}, {"153600", B153600}, {"230400", B230400}, 235 {"307200", B307200}, {"460800", B460800}, {"", 0} 236 }; 237 238 static dacf_op_t kbconfig_op[] = { 239 { DACF_OPID_POSTATTACH, kb_config }, 240 { DACF_OPID_PREDETACH, kb_unconfig }, 241 { DACF_OPID_END, NULL }, 242 }; 243 244 static dacf_op_t msconfig_op[] = { 245 { DACF_OPID_POSTATTACH, ms_config }, 246 { DACF_OPID_PREDETACH, ms_unconfig }, 247 { DACF_OPID_END, NULL }, 248 }; 249 250 static dacf_opset_t opsets[] = { 251 { "kb_config", kbconfig_op }, 252 { "ms_config", msconfig_op }, 253 { NULL, NULL } 254 }; 255 256 struct dacfsw dacfsw = { 257 DACF_MODREV_1, 258 opsets, 259 }; 260 261 struct modldacf modldacf = { 262 &mod_dacfops, /* Type of module */ 263 "Consconfig DACF %I%", 264 &dacfsw 265 }; 266 267 struct modlinkage modlinkage = { 268 MODREV_1, (void *)&modldacf, NULL 269 }; 270 271 int 272 _init(void) { 273 return (mod_install(&modlinkage)); 274 } 275 276 int 277 _fini(void) 278 { 279 /* 280 * This modules state is held in the kernel by space.c 281 * allowing this module to be unloaded. 282 */ 283 return (mod_remove(&modlinkage)); 284 } 285 286 int 287 _info(struct modinfo *modinfop) 288 { 289 return (mod_info(&modlinkage, modinfop)); 290 } 291 292 /*PRINTFLIKE2*/ 293 static void consconfig_dprintf(int, const char *, ...) 294 __KPRINTFLIKE(2); 295 296 static void 297 consconfig_dprintf(int l, const char *fmt, ...) 298 { 299 va_list ap; 300 301 #ifndef DEBUG 302 if (!l) { 303 return; 304 } 305 #endif /* DEBUG */ 306 if (l < consconfig_errlevel) { 307 return; 308 } 309 310 va_start(ap, fmt); 311 (void) vprintf(fmt, ap); 312 va_end(ap); 313 } 314 315 /* 316 * Return a property name in /aliases. 317 * The caller is responsible for freeing the memory. 318 * The property value is NULL terminated string. 319 * /aliases exists in OBP >= 2.4. 320 */ 321 char * 322 get_alias(char *alias, char *buf) 323 { 324 pnode_t node; 325 326 /* OBP >= 2.4 has /aliases */ 327 if ((node = prom_alias_node()) == OBP_BADNODE) 328 return (NULL); 329 330 if (prom_getproplen(node, (caddr_t)alias) <= 0) 331 return (NULL); 332 333 (void) prom_getprop(node, (caddr_t)alias, (caddr_t)buf); 334 prom_pathname(buf); 335 return (buf); 336 } 337 338 /* 339 * i_consconfig_createvp: 340 * This routine is a convenience routine that is passed a path and returns 341 * a vnode. 342 */ 343 static vnode_t * 344 i_consconfig_createvp(char *path) 345 { 346 int error; 347 vnode_t *vp; 348 char *buf = NULL, *fullpath; 349 350 DPRINTF(DPRINT_L0, "i_consconfig_createvp: %s\n", path); 351 fullpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); 352 353 if (strchr(path, ':') == NULL) { 354 /* convert an OBP path to a /devices path */ 355 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP); 356 if (i_ddi_prompath_to_devfspath(path, buf) != DDI_SUCCESS) { 357 kmem_free(buf, MAXPATHLEN); 358 kmem_free(fullpath, MAXPATHLEN); 359 return (NULL); 360 } 361 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", buf); 362 kmem_free(buf, MAXPATHLEN); 363 } else { 364 /* convert a devfs path to a /devices path */ 365 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", path); 366 } 367 368 DPRINTF(DPRINT_L0, "lookupname(%s)\n", fullpath); 369 error = lookupname(fullpath, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp); 370 kmem_free(fullpath, MAXPATHLEN); 371 if (error) 372 return (NULL); 373 374 DPRINTF(DPRINT_L0, "create vnode = 0x%p - dev 0x%lx\n", vp, vp->v_rdev); 375 ASSERT(vn_matchops(vp, spec_getvnodeops())); 376 377 return (vp); 378 } 379 380 /* 381 * consconfig_print_paths: 382 * Function to print out the various paths 383 */ 384 static void 385 consconfig_print_paths(void) 386 { 387 char *path; 388 389 if (usb_kb_path != NULL) 390 cmn_err(CE_WARN, 391 "consconfig_dacf:usb_kb_path has been deprecated, " 392 "use consconfig:usb_kb_path instead"); 393 394 if (usb_ms_path != NULL) 395 cmn_err(CE_WARN, 396 "consconfig_dacf:usb_ms_path has been deprecated, " 397 "use consconfig:usb_ms_path instead"); 398 399 if (consconfig_errlevel > DPRINT_L0) 400 return; 401 402 path = NULL; 403 if (consconfig_usb_kb_path != NULL) 404 path = consconfig_usb_kb_path; 405 else if (usb_kb_path != NULL) 406 path = usb_kb_path; 407 if (path != NULL) 408 DPRINTF(DPRINT_L0, "usb keyboard path = %s\n", path); 409 410 path = plat_kbdpath(); 411 if (path != NULL) 412 DPRINTF(DPRINT_L0, "keyboard path = %s\n", path); 413 414 path = NULL; 415 if (consconfig_usb_ms_path != NULL) 416 path = consconfig_usb_ms_path; 417 else if (usb_ms_path != NULL) 418 path = usb_ms_path; 419 if (path != NULL) 420 DPRINTF(DPRINT_L0, "usb mouse path = %s\n", path); 421 422 path = plat_mousepath(); 423 if (path != NULL) 424 DPRINTF(DPRINT_L0, "mouse path = %s\n", path); 425 426 path = plat_stdinpath(); 427 if (path != NULL) 428 DPRINTF(DPRINT_L0, "stdin path = %s\n", path); 429 430 path = plat_stdoutpath(); 431 if (path != NULL) 432 DPRINTF(DPRINT_L0, "stdout path = %s\n", path); 433 434 path = plat_fbpath(); 435 if (path != NULL) 436 DPRINTF(DPRINT_L0, "fb path = %s\n", path); 437 } 438 439 /* 440 * consconfig_kbd_abort_enable: 441 * Send the CONSSETABORTENABLE ioctl to the lower layers. This ioctl 442 * will only be sent to the device if it is the console device. 443 * This ioctl tells the device to pay attention to abort sequences. 444 * In the case of kbtrans, this would tell the driver to pay attention 445 * to the two key abort sequences like STOP-A. In the case of the 446 * serial keyboard, it would be an abort sequence like a break. 447 */ 448 static int 449 consconfig_kbd_abort_enable(ldi_handle_t lh) 450 { 451 int err, rval; 452 453 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_enable\n"); 454 455 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_TRUE, 456 FKIOCTL, kcred, &rval); 457 return (err); 458 } 459 460 /* 461 * consconfig_kbd_abort_disable: 462 * Send CONSSETABORTENABLE ioctl to lower layers. This ioctl 463 * will only be sent to the device if it is the console device. 464 * This ioctl tells the physical device to ignore abort sequences, 465 * and send the sequences up to virtual keyboard(conskbd) so that 466 * STOP and A (or F1 and A) can be combined. 467 */ 468 static int 469 consconfig_kbd_abort_disable(ldi_handle_t lh) 470 { 471 int err, rval; 472 473 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_disable\n"); 474 475 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_FALSE, 476 FKIOCTL, kcred, &rval); 477 return (err); 478 } 479 480 /* 481 * consconfig_get_polledio: 482 * Query the console with the CONSPOLLEDIO ioctl. 483 * The polled I/O routines are used by debuggers to perform I/O while 484 * interrupts and normal kernel services are disabled. 485 */ 486 static cons_polledio_t * 487 consconfig_get_polledio(ldi_handle_t lh) 488 { 489 int err, rval; 490 struct strioctl strioc; 491 cons_polledio_t *polled_io; 492 493 /* 494 * Setup the ioctl to be sent down to the lower driver. 495 */ 496 strioc.ic_cmd = CONSOPENPOLLEDIO; 497 strioc.ic_timout = INFTIM; 498 strioc.ic_len = sizeof (polled_io); 499 strioc.ic_dp = (char *)&polled_io; 500 501 /* 502 * Send the ioctl to the driver. The ioctl will wait for 503 * the response to come back from wc. wc has already issued 504 * the CONSOPENPOLLEDIO to the lower layer driver. 505 */ 506 err = ldi_ioctl(lh, I_STR, (intptr_t)&strioc, FKIOCTL, kcred, &rval); 507 508 if (err != 0) { 509 /* 510 * If the lower driver does not support polled I/O, then 511 * return NULL. This will be the case if the driver does 512 * not handle polled I/O, or OBP is going to handle polled 513 * I/O for the device. 514 */ 515 516 return (NULL); 517 } 518 519 /* 520 * Return the polled I/O structure. 521 */ 522 return (polled_io); 523 } 524 525 /* 526 * consconfig_setup_polledio: 527 * This routine does the setup work for polled I/O. First we get 528 * the polled_io structure from the lower layers 529 * and then we register the polled I/O 530 * callbacks with the debugger that will be using them. 531 */ 532 static void 533 consconfig_setup_polledio(cons_state_t *sp, dev_t dev) 534 { 535 cons_polledio_t *polled_io; 536 ldi_handle_t lh; 537 538 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: start\n"); 539 540 541 if (ldi_open_by_dev(&dev, OTYP_CHR, 542 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li) != 0) 543 return; 544 545 546 /* 547 * Get the polled io routines so that we can use this 548 * device with the debuggers. 549 */ 550 polled_io = consconfig_get_polledio(lh); 551 552 /* 553 * If the get polledio failed, then we do not want to throw 554 * the polled I/O switch. 555 */ 556 if (polled_io == NULL) { 557 DPRINTF(DPRINT_L0, 558 "consconfig_setup_polledio: get_polledio failed\n"); 559 (void) ldi_close(lh, FREAD|FWRITE, kcred); 560 return; 561 } 562 563 /* Initialize the polled input */ 564 polled_io_init(); 565 566 /* Register the callbacks */ 567 DPRINTF(DPRINT_L0, 568 "consconfig_setup_polledio: registering callbacks\n"); 569 (void) polled_io_register_callbacks(polled_io, 0); 570 571 (void) ldi_close(lh, FREAD|FWRITE, kcred); 572 573 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: end\n"); 574 } 575 576 static cons_state_t * 577 consconfig_state_init(void) 578 { 579 cons_state_t *sp; 580 int rval; 581 582 /* Initialize console information */ 583 sp = kmem_zalloc(sizeof (cons_state_t), KM_SLEEP); 584 sp->cons_keyboard_problem = B_FALSE; 585 586 mutex_init(&sp->cons_lock, NULL, MUTEX_DRIVER, NULL); 587 588 /* check if consconfig:usb_kb_path is set in /etc/system */ 589 consconfig_usb_kb_path = consconfig_get_usb_kb_path(); 590 591 /* check if consconfig:usb_ms_path is set in /etc/system */ 592 consconfig_usb_ms_path = consconfig_get_usb_ms_path(); 593 594 consconfig_print_paths(); 595 596 /* init external globals */ 597 stdoutdev = NODEV; 598 599 /* 600 * Find keyboard, mouse, stdin and stdout devices, if they 601 * exist on this platform. 602 */ 603 604 if (consconfig_usb_kb_path != NULL) { 605 sp->cons_keyboard_path = consconfig_usb_kb_path; 606 } else if (usb_kb_path != NULL) { 607 sp->cons_keyboard_path = usb_kb_path; 608 } else { 609 sp->cons_keyboard_path = plat_kbdpath(); 610 } 611 612 if (consconfig_usb_ms_path != NULL) { 613 sp->cons_mouse_path = consconfig_usb_ms_path; 614 } else if (usb_ms_path != NULL) { 615 sp->cons_mouse_path = usb_ms_path; 616 } else { 617 sp->cons_mouse_path = plat_mousepath(); 618 } 619 620 /* Identify the stdout driver */ 621 sp->cons_stdout_path = plat_stdoutpath(); 622 if (plat_stdout_is_framebuffer()) { 623 sp->cons_fb_path = sp->cons_stdout_path; 624 } else { 625 sp->cons_fb_path = plat_fbpath(); 626 } 627 628 if (plat_stdin_is_keyboard() && 629 (usb_kb_path != NULL || consconfig_usb_kb_path != NULL)) { 630 sp->cons_stdin_path = sp->cons_keyboard_path; 631 } else { 632 /* 633 * The standard in device may or may not be the same as 634 * the keyboard. Even if the keyboard is not the 635 * standard input, the keyboard console stream will 636 * still be built if the keyboard alias provided by the 637 * firmware exists and is valid. 638 */ 639 sp->cons_stdin_path = plat_stdinpath(); 640 } 641 642 sp->cons_li = ldi_ident_from_anon(); 643 644 /* Save the pointer for retrieval by the dacf functions */ 645 rval = space_store("consconfig", (uintptr_t)sp); 646 ASSERT(rval == 0); 647 648 return (sp); 649 } 650 651 static int 652 consconfig_relink_wc(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 653 { 654 int err, rval; 655 ldi_handle_t wc_lh; 656 dev_t wc_dev; 657 658 ASSERT(muxid != NULL); 659 660 /* 661 * NOTE: we could be in a dacf callback context right now. normally 662 * it's not legal to call any ldi_open_*() function from this context 663 * because we're currently holding device tree locks and if the 664 * ldi_open_*() call could try to acquire other device tree locks 665 * (to attach the device we're trying to open.) if this happens then 666 * we could deadlock. To avoid this situation, during initialization 667 * we made sure to grab a hold on the dip of the device we plan to 668 * open so that it can never be detached. Then we use 669 * ldi_open_by_dev() to actually open the device since it will see 670 * that the device is already attached and held and instead of 671 * acquire any locks it will only increase the reference count 672 * on the device. 673 */ 674 wc_dev = sp->cons_wc_vp->v_rdev; 675 err = ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, 676 kcred, &wc_lh, sp->cons_li); 677 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev); 678 if (err) { 679 cmn_err(CE_WARN, "consconfig_relink_wc: " 680 "unable to open wc device"); 681 return (err); 682 } 683 684 if (new_lh != NULL) { 685 DPRINTF(DPRINT_L0, "linking stream under wc\n"); 686 687 err = ldi_ioctl(wc_lh, I_PLINK, (uintptr_t)new_lh, 688 FKIOCTL, kcred, muxid); 689 if (err != 0) { 690 cmn_err(CE_WARN, "consconfig_relink_wc: " 691 "wc link failed, error %d", err); 692 } 693 } else { 694 DPRINTF(DPRINT_L0, "unlinking stream from under wc\n"); 695 696 err = ldi_ioctl(wc_lh, I_PUNLINK, *muxid, 697 FKIOCTL, kcred, &rval); 698 if (err != 0) { 699 cmn_err(CE_WARN, "consconfig_relink_wc: " 700 "wc unlink failed, error %d", err); 701 } else { 702 *muxid = -1; 703 } 704 } 705 706 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred); 707 return (err); 708 } 709 710 static void 711 cons_build_upper_layer(cons_state_t *sp) 712 { 713 ldi_handle_t wc_lh; 714 struct strioctl strioc; 715 int rval; 716 dev_t wc_dev; 717 dev_t dev; 718 #ifdef _HAVE_TEM_FIRMWARE 719 dev_info_t *dip; 720 int *int_array; 721 uint_t nint; 722 boolean_t kfb_mode; 723 #endif /* _HAVE_TEM_FIRMWARE */ 724 725 /* 726 * Build the wc->conskbd portion of the keyboard console stream. 727 * Even if no keyboard is attached to the system, the upper 728 * layer of the stream will be built. If the user attaches 729 * a keyboard after the system is booted, the keyboard driver 730 * and module will be linked under conskbd. 731 * 732 * Errors are generally ignored here because conskbd and wc 733 * are pseudo drivers and should be present on the system. 734 */ 735 736 /* open the console keyboard device. will never be closed */ 737 if (ldi_open_by_name(CONSKBD_PATH, FREAD|FWRITE|FNOCTTY, 738 kcred, &sp->conskbd_lh, sp->cons_li) != 0) { 739 panic("consconfig: unable to open conskbd device"); 740 /*NOTREACHED*/ 741 } 742 743 DPRINTF(DPRINT_L0, "conskbd_lh = %p\n", sp->conskbd_lh); 744 745 /* open the console mouse device. will never be closed */ 746 if (ldi_open_by_name(CONSMS_PATH, FREAD|FWRITE|FNOCTTY, 747 kcred, &sp->consms_lh, sp->cons_li) != 0) { 748 panic("consconfig: unable to open consms device"); 749 /*NOTREACHED*/ 750 } 751 752 DPRINTF(DPRINT_L0, "consms_lh = %p\n", sp->consms_lh); 753 754 /* 755 * Get a vnode for the wc device and then grab a hold on the 756 * device dip so it can never detach. We need to do this now 757 * because later we'll have to open the wc device in a context 758 * were it isn't safe to acquire any device tree locks (ie, during 759 * a dacf callback.) 760 */ 761 sp->cons_wc_vp = i_consconfig_createvp(WC_PATH); 762 if (sp->cons_wc_vp == NULL) 763 panic("consconfig: unable to find wc device"); 764 765 if (e_ddi_hold_devi_by_dev(sp->cons_wc_vp->v_rdev, 0) == NULL) 766 panic("consconfig: unable to hold wc device"); 767 768 /* 769 * Build the wc->conskbd portion of the keyboard console stream. 770 * Even if no keyboard is attached to the system, the upper 771 * layer of the stream will be built. If the user attaches 772 * a keyboard after the system is booted, the keyboard driver 773 * and module will be linked under conskbd. 774 * 775 * The act of linking conskbd under wc will cause wc to 776 * query the lower layers about their polled I/O routines 777 * using CONSOPENPOLLEDIO. This will fail on this link because 778 * there is not a physical keyboard linked under conskbd. 779 * 780 * Since conskbd and wc are pseudo drivers, errors are 781 * generally ignored when linking and unlinking them. 782 */ 783 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 784 785 /* 786 * Get a vnode for the redirection device. (It has the 787 * connection to the workstation console device wired into it, 788 * so that it's not necessary to establish the connection 789 * here. If the redirection device is ever generalized to 790 * handle multiple client devices, it won't be able to 791 * establish the connection itself, and we'll have to do it 792 * here.) 793 */ 794 wsconsvp = i_consconfig_createvp(IWSCN_PATH); 795 if (wsconsvp == NULL) { 796 panic("consconfig: unable to find iwscn device"); 797 /*NOTREACHED*/ 798 } 799 800 if (cons_tem_disable) 801 return; 802 803 if (sp->cons_fb_path == NULL) { 804 #if defined(__x86) 805 if (plat_stdout_is_framebuffer()) 806 cmn_err(CE_WARN, "consconfig: no screen found"); 807 #endif 808 return; 809 } 810 811 /* make sure the frame buffer device exists */ 812 dev = ddi_pathname_to_dev_t(sp->cons_fb_path); 813 if (dev == NODEV) { 814 cmn_err(CE_WARN, "consconfig: " 815 "cannot find driver for screen device %s", 816 sp->cons_fb_path); 817 return; 818 } 819 820 #ifdef _HAVE_TEM_FIRMWARE 821 /* 822 * Here we hold the driver and check "tem-support" property. 823 * We're doing this with e_ddi_hold_devi_by_dev and 824 * ddi_prop_lookup_int_array before opening the driver since 825 * some video cards that don't support the kernel terminal 826 * emulator could hang or crash if opened too early during 827 * boot. 828 */ 829 if ((dip = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) { 830 cmn_err(CE_WARN, "consconfig: cannot hold fb dev %s", 831 sp->cons_fb_path); 832 return; 833 } 834 835 /* 836 * Check the existance of the tem-support property AND that 837 * it be equal to 1. 838 */ 839 kfb_mode = B_FALSE; 840 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 841 DDI_PROP_DONTPASS, "tem-support", &int_array, &nint) == 842 DDI_SUCCESS) { 843 if (nint > 0) 844 kfb_mode = int_array[0] == 1; 845 ddi_prop_free(int_array); 846 } 847 ddi_release_devi(dip); 848 if (!kfb_mode) 849 return; 850 #endif /* _HAVE_TEM_FIRMWARE */ 851 852 /* tell wc to open the frame buffer device */ 853 wc_dev = sp->cons_wc_vp->v_rdev; 854 if (ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, kcred, 855 &wc_lh, sp->cons_li)) { 856 cmn_err(CE_PANIC, "cons_build_upper_layer: " 857 "unable to open wc device"); 858 return; 859 } 860 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev); 861 862 strioc.ic_cmd = WC_OPEN_FB; 863 strioc.ic_timout = INFTIM; 864 strioc.ic_len = strlen(sp->cons_fb_path) + 1; 865 strioc.ic_dp = sp->cons_fb_path; 866 867 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc, 868 FKIOCTL, kcred, &rval) == 0) 869 consmode = CONS_KFB; 870 else 871 cmn_err(CE_WARN, 872 "consconfig: terminal emulator failed to initialize"); 873 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred); 874 } 875 876 static void 877 consconfig_load_drivers(cons_state_t *sp) 878 { 879 /* 880 * Calling ddi_pathname_to_dev_t causes the drivers to be loaded. 881 * The attaching of the drivers will cause the creation of the 882 * keyboard and mouse minor nodes, which will in turn trigger the 883 * dacf framework to call the keyboard and mouse configuration 884 * tasks. See PSARC/1998/212 for more details about the dacf 885 * framework. 886 * 887 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1 888 * is kb/mouse. zs0 must be attached before zs1. The zs driver 889 * is written this way and the hardware may depend on this, too. 890 * It would be better to enforce this by attaching zs in sibling 891 * order with a driver property, such as ddi-attachall. 892 */ 893 if (sp->cons_stdin_path != NULL) 894 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path); 895 if (stdindev == NODEV) { 896 DPRINTF(DPRINT_L0, 897 "!fail to attach stdin: %s\n", sp->cons_stdin_path); 898 } 899 if (sp->cons_stdout_path != NULL) 900 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path); 901 if (sp->cons_keyboard_path != NULL) 902 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path); 903 if (sp->cons_mouse_path != NULL) 904 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path); 905 906 /* 907 * On x86, make sure the fb driver is loaded even if we don't use it 908 * for the console. This will ensure that we create a /dev/fb link 909 * which is required to start Xorg. 910 */ 911 #if defined(__x86) 912 if (sp->cons_fb_path != NULL) 913 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path); 914 #endif 915 916 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, " 917 "mousedev %lx\n", stdindev, stdoutdev, kbddev, mousedev); 918 } 919 920 static void 921 consconfig_init_framebuffer(cons_state_t *sp) 922 { 923 if (!plat_stdout_is_framebuffer()) 924 return; 925 926 DPRINTF(DPRINT_L0, "stdout is framebuffer\n"); 927 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0); 928 929 /* 930 * Console output is a framebuffer. 931 * Find the framebuffer driver if we can, and make 932 * ourselves a shadow vnode to track it with. 933 */ 934 fbdev = stdoutdev; 935 if (fbdev == NODEV) { 936 DPRINTF(DPRINT_L3, 937 "Can't find driver for console framebuffer\n"); 938 } else { 939 /* stdoutdev is valid, of fbvp should exist */ 940 fbvp = i_consconfig_createvp(sp->cons_stdout_path); 941 if (fbvp == NULL) { 942 panic("consconfig_load_drivers: " 943 "unable to find frame buffer device"); 944 /*NOTREACHED*/ 945 } 946 ASSERT(fbvp->v_rdev == fbdev); 947 948 /* console device is never released */ 949 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0); 950 } 951 pm_cfb_setup(sp->cons_stdout_path); 952 } 953 954 /* 955 * consconfig_prepare_dev: 956 * Flush the stream, push "pushmod" onto the stream. 957 * for keyboard, issue the KIOCTRANSABLE ioctl, and 958 * possible enable abort. 959 */ 960 static void 961 consconfig_prepare_dev( 962 ldi_handle_t new_lh, 963 const char *pushmod, 964 int kbdtranslatable, 965 int input_type, 966 int dev_type) 967 { 968 int err, rval; 969 970 /* send a flush down the stream to the keyboard driver */ 971 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW, 972 FKIOCTL, kcred, &rval); 973 974 if (pushmod) { 975 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod, 976 FKIOCTL, kcred, &rval); 977 if (err) { 978 cmn_err(CE_WARN, "consconfig_prepare_dev: " 979 "can't push streams module \"%s\", error %d", 980 pushmod, err); 981 } 982 } 983 984 if (dev_type == CONS_MS) 985 return; 986 987 ASSERT(dev_type == CONS_KBD); 988 989 err = ldi_ioctl(new_lh, KIOCTRANSABLE, 990 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval); 991 if (err) { 992 cmn_err(CE_WARN, "consconfig_prepare_dev: " 993 "KIOCTRANSABLE failed, error: %d", err); 994 } 995 996 /* 997 * During boot, dynamic_console_config() will call the 998 * function to enable abort on the console. If the 999 * keyboard is hotplugged after boot, check to see if 1000 * the keyboard is the console input. If it is 1001 * enable abort on it. 1002 */ 1003 if (input_type == CONSOLE_LOCAL) 1004 (void) consconfig_kbd_abort_enable(new_lh); 1005 } 1006 1007 /* 1008 * consconfig_relink_conskbd: 1009 * If new_lh is not NULL it should represent a driver with a 1010 * keyboard module pushed on top of it. The driver is then linked 1011 * underneath conskbd. the resulting stream will be 1012 * wc->conskbd->"new_lh driver". 1013 * 1014 * If new_lh is NULL, then an unlink operation is done on conskbd 1015 * that attempts to unlink the stream specified by *muxid. 1016 * the resulting stream will be wc->conskbd. 1017 */ 1018 static int 1019 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 1020 { 1021 int err, rval; 1022 int conskbd_relink = 0; 1023 1024 ASSERT(muxid != NULL); 1025 1026 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: " 1027 "conskbd_lh = %p, new_lh = %p, muxid = %x\n", 1028 sp->conskbd_lh, new_lh, *muxid); 1029 1030 /* 1031 * If conskbd is linked under wc then temporarily unlink it 1032 * from under wc so that the new_lh stream may be linked under 1033 * conskbd. This has to be done because streams are built bottom 1034 * up and linking a stream under conskbd isn't allowed when 1035 * conskbd is linked under wc. 1036 */ 1037 if (sp->conskbd_muxid != -1) { 1038 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n"); 1039 conskbd_relink = 1; 1040 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid); 1041 if (err) { 1042 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1043 "wc unlink failed, error %d", err); 1044 return (err); 1045 } 1046 } 1047 1048 if (new_lh != NULL) { 1049 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n"); 1050 1051 /* Link the stream represented by new_lh under conskbd */ 1052 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh, 1053 FKIOCTL, kcred, muxid); 1054 if (err != 0) { 1055 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1056 "conskbd link failed, error %d", err); 1057 goto relink_failed; 1058 } 1059 } else { 1060 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n"); 1061 1062 /* 1063 * This will cause the keyboard driver to be closed, 1064 * all modules to be popped, and the keyboard vnode released. 1065 */ 1066 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid, 1067 FKIOCTL, kcred, &rval); 1068 if (err != 0) { 1069 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1070 "conskbd unlink failed, error %d", err); 1071 goto relink_failed; 1072 } else { 1073 *muxid = -1; 1074 } 1075 1076 consconfig_check_phys_kbd(sp); 1077 } 1078 1079 if (!conskbd_relink) 1080 return (err); 1081 1082 /* 1083 * Link consbkd back under wc. 1084 * 1085 * The act of linking conskbd back under wc will cause wc 1086 * to query the lower lower layers about their polled I/O 1087 * routines. This time the request will succeed because there 1088 * is a physical keyboard linked under conskbd. 1089 */ 1090 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n"); 1091 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 1092 if (err) { 1093 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1094 "wc link failed, error %d", err); 1095 } 1096 return (err); 1097 1098 relink_failed: 1099 if (!conskbd_relink) 1100 return (err); 1101 1102 /* something went wrong, try to reconnect conskbd back under wc */ 1103 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n"); 1104 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 1105 return (err); 1106 } 1107 1108 /* 1109 * consconfig_relink_consms: 1110 * If new_lh is not NULL it should represent a driver with a 1111 * mouse module pushed on top of it. The driver is then linked 1112 * underneath consms. the resulting stream will be 1113 * consms->"new_lh driver". 1114 * 1115 * If new_lh is NULL, then an unlink operation is done on consms 1116 * that attempts to unlink the stream specified by *muxid. 1117 */ 1118 static int 1119 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 1120 { 1121 int err, rval; 1122 1123 DPRINTF(DPRINT_L0, "consconfig_relink_consms: " 1124 "consms_lh = %p, new_lh = %p, muxid = %x\n", 1125 (void *)sp->consms_lh, (void *)new_lh, *muxid); 1126 1127 if (new_lh != NULL) { 1128 DPRINTF(DPRINT_L0, "linking mouse under consms\n"); 1129 1130 /* Link ms/usbms stream underneath consms multiplexor. */ 1131 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh, 1132 FKIOCTL, kcred, muxid); 1133 if (err != 0) { 1134 cmn_err(CE_WARN, "consconfig_relink_consms: " 1135 "mouse link failed, error %d", err); 1136 } 1137 } else { 1138 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n"); 1139 1140 /* Tear down the mouse stream */ 1141 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid, 1142 FKIOCTL, kcred, &rval); 1143 if (err != 0) { 1144 cmn_err(CE_WARN, "consconfig_relink_consms: " 1145 "mouse unlink failed, error %d", err); 1146 } else { 1147 *muxid = -1; 1148 } 1149 } 1150 return (err); 1151 } 1152 1153 static int 1154 cons_get_input_type(void) 1155 { 1156 int type; 1157 /* 1158 * Now that we know what all the devices are, we can figure out 1159 * what kind of console we have. 1160 */ 1161 if (plat_stdin_is_keyboard()) { 1162 /* Stdin is from the system keyboard */ 1163 type = CONSOLE_LOCAL; 1164 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) { 1165 /* 1166 * A reliable indicator that we are doing a remote console 1167 * is that stdin and stdout are the same. 1168 * This is probably a tip line. 1169 */ 1170 type = CONSOLE_TIP; 1171 } else { 1172 type = CONSOLE_SERIAL_KEYBOARD; 1173 } 1174 1175 return (type); 1176 } 1177 1178 static void 1179 consconfig_init_input(cons_state_t *sp) 1180 { 1181 ldi_handle_t new_lh; 1182 dev_t cons_final_dev; 1183 int err; 1184 1185 cons_final_dev = NODEV; 1186 1187 switch (sp->cons_input_type) { 1188 case CONSOLE_LOCAL: 1189 DPRINTF(DPRINT_L0, "stdin is keyboard\n"); 1190 1191 /* 1192 * The machine is allowed to boot without a keyboard. 1193 * If a user attaches a keyboard later, the keyboard 1194 * will be hooked into the console stream with the dacf 1195 * functions. 1196 * 1197 * The only drivers that look at kbbdev are the 1198 * serial drivers, which looks at kbdev to see if 1199 * they should allow abort on a break. In the absence 1200 * of keyboard, the serial drivers won't be attached 1201 * for any keyboard instance. 1202 */ 1203 if (kbddev == NODEV) { 1204 /* 1205 * If there is a problem with the keyboard 1206 * during the driver loading, then the polled 1207 * input won't get setup properly if polled 1208 * input is needed. This means that if the 1209 * keyboard is hotplugged, the keyboard would 1210 * work normally, but going down to the 1211 * debugger would not work if polled input is 1212 * required. This field is set here. The next 1213 * time a keyboard is plugged in, the field is 1214 * checked in order to give the next keyboard a 1215 * chance at being registered for console 1216 * input. 1217 * 1218 * Although this code will rarely be needed, 1219 * USB keyboards can be flaky, so this code 1220 * will be useful on the occasion that the 1221 * keyboard doesn't enumerate when the drivers 1222 * are loaded. 1223 */ 1224 DPRINTF(DPRINT_L2, "Error with console keyboard\n"); 1225 sp->cons_keyboard_problem = B_TRUE; 1226 } 1227 stdindev = kbddev; 1228 cons_final_dev = sp->cons_wc_vp->v_rdev; 1229 break; 1230 1231 case CONSOLE_TIP: 1232 DPRINTF(DPRINT_L0, "console input is tty (%s)\n", 1233 sp->cons_stdin_path); 1234 1235 /* 1236 * Console device drivers must be able to output 1237 * after being closed. 1238 */ 1239 rconsvp = i_consconfig_createvp(sp->cons_stdin_path); 1240 if (rconsvp == NULL) { 1241 panic("consconfig_init_input: " 1242 "unable to find stdin device (%s)", 1243 sp->cons_stdin_path); 1244 /*NOTREACHED*/ 1245 } 1246 rconsdev = rconsvp->v_rdev; 1247 1248 ASSERT(rconsdev == stdindev); 1249 1250 cons_final_dev = rconsdev; 1251 break; 1252 1253 case CONSOLE_SERIAL_KEYBOARD: 1254 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n"); 1255 1256 /* 1257 * Non-keyboard input device, but not rconsdev. 1258 * This is known as the "serial keyboard" case - the 1259 * most likely use is someone has a keyboard attached 1260 * to a serial port (tip) and still has output on a 1261 * framebuffer. 1262 * 1263 * In this case, the serial driver must be linked 1264 * directly beneath wc. Since conskbd was linked 1265 * underneath wc above, first we unlink conskbd. 1266 */ 1267 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid); 1268 sp->conskbd_muxid = -1; 1269 1270 /* 1271 * Open the serial keyboard, configure it, 1272 * and link it underneath wc. 1273 */ 1274 err = ldi_open_by_name(sp->cons_stdin_path, 1275 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li); 1276 if (err == 0) { 1277 struct termios termios; 1278 int rval; 1279 int stdin_muxid; 1280 1281 consconfig_prepare_dev(new_lh, 1282 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD); 1283 1284 /* Re-set baud rate */ 1285 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios, 1286 FKIOCTL, kcred, &rval); 1287 1288 /* Set baud rate */ 1289 if (consconfig_setmodes(stdindev, &termios) == 0) { 1290 err = ldi_ioctl(new_lh, 1291 TCSETSF, (intptr_t)&termios, 1292 FKIOCTL, kcred, &rval); 1293 if (err) { 1294 cmn_err(CE_WARN, 1295 "consconfig_init_input: " 1296 "TCSETSF failed, error %d", err); 1297 } 1298 } 1299 1300 /* 1301 * Now link the serial keyboard direcly under wc 1302 * we don't save the returned muxid because we 1303 * don't support changing/hotplugging the console 1304 * keyboard when it is a serial keyboard. 1305 */ 1306 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid); 1307 1308 (void) ldi_close(new_lh, FREAD|FWRITE, kcred); 1309 } 1310 1311 cons_final_dev = sp->cons_wc_vp->v_rdev; 1312 break; 1313 1314 default: 1315 panic("consconfig_init_input: " 1316 "unsupported console input/output combination"); 1317 /*NOTREACHED*/ 1318 } 1319 1320 /* 1321 * Use the redirection device/workstation console pair as the "real" 1322 * console if the latter hasn't already been set. 1323 * The workstation console driver needs to see rwsconsvp, but 1324 * all other access should be through the redirecting driver. 1325 */ 1326 if (rconsvp == NULL) { 1327 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n"); 1328 rconsvp = wsconsvp; 1329 rconsdev = wsconsvp->v_rdev; 1330 } 1331 1332 ASSERT(cons_final_dev != NODEV); 1333 1334 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, 1335 kcred, &new_lh, sp->cons_li); 1336 if (err) { 1337 panic("consconfig_init_input: " 1338 "unable to open console device"); 1339 /*NOTREACHED*/ 1340 } 1341 1342 /* Enable abort on the console */ 1343 (void) consconfig_kbd_abort_enable(new_lh); 1344 1345 /* Now we must close it to make console logins happy */ 1346 (void) ldi_close(new_lh, FREAD|FWRITE, kcred); 1347 1348 /* Set up polled input if it is supported by the console device */ 1349 if (plat_use_polled_debug()) { 1350 /* 1351 * In the debug case, register the keyboard polled entry 1352 * points, but don't throw the switch in the debugger. This 1353 * allows the polled entry points to be checked by hand 1354 */ 1355 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev); 1356 } else { 1357 consconfig_setup_polledio(sp, cons_final_dev); 1358 } 1359 1360 kadb_uses_kernel(); 1361 } 1362 1363 /* 1364 * This function kicks off the console configuration. 1365 * Configure keyboard and mouse. Main entry here. 1366 */ 1367 void 1368 dynamic_console_config(void) 1369 { 1370 /* initialize space.c globals */ 1371 stdindev = NODEV; 1372 mousedev = NODEV; 1373 kbddev = NODEV; 1374 fbdev = NODEV; 1375 fbvp = NULL; 1376 fbdip = NULL; 1377 wsconsvp = NULL; 1378 rwsconsvp = NULL; 1379 rwsconsdev = NODEV; 1380 rconsvp = NULL; 1381 rconsdev = NODEV; 1382 1383 /* Initialize cons_state_t structure and console device paths */ 1384 consconfig_sp = consconfig_state_init(); 1385 ASSERT(consconfig_sp); 1386 1387 /* Build upper layer of console stream */ 1388 cons_build_upper_layer(consconfig_sp); 1389 1390 /* 1391 * Load keyboard/mouse drivers. The dacf routines will 1392 * plumb the devices into the console stream 1393 * 1394 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard 1395 * and mouse drivers are linked into their respective console 1396 * streams if the pathnames are valid. 1397 */ 1398 consconfig_load_drivers(consconfig_sp); 1399 consconfig_sp->cons_input_type = cons_get_input_type(); 1400 1401 /* 1402 * This is legacy special case code for the "cool" virtual console 1403 * for the Starfire project. Starfire has a dummy "ssp-serial" 1404 * node in the OBP device tree and cvc is a pseudo driver. 1405 */ 1406 if (consconfig_sp->cons_stdout_path != NULL && stdindev == NODEV && 1407 strstr(consconfig_sp->cons_stdout_path, "ssp-serial")) { 1408 /* 1409 * Setup the virtual console driver for Starfire 1410 * Note that console I/O will still go through prom for now 1411 * (notice we don't open the driver here). The cvc driver 1412 * will be activated when /dev/console is opened by init. 1413 * During that time, a cvcd daemon will be started that 1414 * will open the cvcredirection driver to facilitate 1415 * the redirection of console I/O from cvc to cvcd. 1416 */ 1417 rconsvp = i_consconfig_createvp(CVC_PATH); 1418 if (rconsvp == NULL) 1419 return; 1420 rconsdev = rconsvp->v_rdev; 1421 return; 1422 } 1423 1424 rwsconsvp = consconfig_sp->cons_wc_vp; 1425 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev; 1426 1427 1428 /* initialize framebuffer, console input, and redirection device */ 1429 consconfig_init_framebuffer(consconfig_sp); 1430 consconfig_init_input(consconfig_sp); 1431 1432 DPRINTF(DPRINT_L0, 1433 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n", 1434 mousedev, kbddev, fbdev, rconsdev); 1435 1436 flush_usb_serial_buf(); 1437 } 1438 1439 1440 /* 1441 * Start of DACF interfaces 1442 */ 1443 1444 /* 1445 * Do the real job for keyboard/mouse auto-configuration. 1446 */ 1447 static int 1448 do_config(cons_state_t *sp, cons_prop_t *prop) 1449 { 1450 ldi_handle_t lh; 1451 dev_t dev; 1452 int error; 1453 1454 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS)); 1455 1456 dev = prop->cp_dev; 1457 error = ldi_open_by_dev(&dev, OTYP_CHR, 1458 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li); 1459 if (error) { 1460 return (DACF_FAILURE); 1461 } 1462 ASSERT(dev == prop->cp_dev); /* clone not supported */ 1463 1464 /* 1465 * Prepare the new keyboard/mouse driver 1466 * to be linked under conskbd/consms. 1467 */ 1468 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN, 1469 sp->cons_input_type, prop->cp_type); 1470 1471 if (prop->cp_type == CONS_KBD) { 1472 /* 1473 * Tell the physical keyboard driver to send 1474 * the abort sequences up to the virtual keyboard 1475 * driver so that STOP and A (or F1 and A) 1476 * can be applied to different keyboards. 1477 */ 1478 (void) consconfig_kbd_abort_disable(lh); 1479 1480 /* Link the stream underneath conskbd */ 1481 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid); 1482 } else { 1483 /* Link the stream underneath consms */ 1484 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid); 1485 } 1486 1487 /* 1488 * At this point, the stream is: 1489 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"] 1490 * for mouse: consms->["module_name"->]"mouse_avp driver" 1491 */ 1492 1493 /* Close the driver stream, it will stay linked under conskbd */ 1494 (void) ldi_close(lh, FREAD|FWRITE, kcred); 1495 1496 if (error) { 1497 return (DACF_FAILURE); 1498 } 1499 1500 return (DACF_SUCCESS); 1501 } 1502 1503 static int 1504 do_unconfig(cons_state_t *sp, cons_prop_t *prop) 1505 { 1506 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS)); 1507 1508 if (prop->cp_type == CONS_KBD) 1509 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid)); 1510 else 1511 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid)); 1512 } 1513 1514 static int 1515 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type) 1516 { 1517 major_t major; 1518 minor_t minor; 1519 dev_t dev; 1520 dev_info_t *dip; 1521 cons_state_t *sp; 1522 cons_prop_t *prop; 1523 const char *pushmod; 1524 1525 /* 1526 * Retrieve the state information 1527 * Some platforms may use the old-style "consconfig" to configure 1528 * console stream modules but may also support devices that happen 1529 * to match a rule in /etc/dacf.conf. This will cause a problem 1530 * since the console state structure will not be initialized. 1531 * In that case, these entry points should silently fail and 1532 * permit console to be plumbed later in boot. 1533 */ 1534 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1535 return (DACF_FAILURE); 1536 1537 dip = dacf_devinfo_node(minor_hdl); 1538 major = ddi_driver_major(dip); 1539 ASSERT(major != (major_t)-1); 1540 minor = dacf_minor_number(minor_hdl); 1541 dev = makedevice(major, minor); 1542 ASSERT(dev != NODEV); 1543 1544 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n", 1545 (char *)dacf_driver_name(minor_hdl), dev, major); 1546 1547 /* Access to the global variables is synchronized */ 1548 mutex_enter(&sp->cons_lock); 1549 1550 /* 1551 * Check if the keyboard/mouse has already configured. 1552 */ 1553 if (consconfig_find_dev(sp, dev) != NULL) { 1554 mutex_exit(&sp->cons_lock); 1555 return (DACF_SUCCESS); 1556 } 1557 1558 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP); 1559 1560 /* Config the new keyboard/mouse device */ 1561 prop->cp_dev = dev; 1562 1563 pushmod = dacf_get_arg(arg_hdl, "pushmod"); 1564 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP); 1565 1566 prop->cp_type = type; 1567 if (do_config(sp, prop) != DACF_SUCCESS) { 1568 /* 1569 * The keyboard/mouse node failed to open. 1570 * Set the major and minor numbers to 0 so 1571 * kb_unconfig/ms_unconfig won't unconfigure 1572 * this node if it is detached. 1573 */ 1574 mutex_exit(&sp->cons_lock); 1575 consconfig_free_prop(prop); 1576 return (DACF_FAILURE); 1577 } 1578 1579 consconfig_add_dev(sp, prop); 1580 1581 /* 1582 * See if there was a problem with the console keyboard during boot. 1583 * If so, try to register polled input for this keyboard. 1584 */ 1585 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) { 1586 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev); 1587 sp->cons_keyboard_problem = B_FALSE; 1588 } 1589 1590 /* Prevent autodetach due to memory pressure */ 1591 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1); 1592 1593 mutex_exit(&sp->cons_lock); 1594 1595 return (DACF_SUCCESS); 1596 } 1597 1598 static int 1599 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl) 1600 { 1601 _NOTE(ARGUNUSED(arg_hdl)) 1602 1603 major_t major; 1604 minor_t minor; 1605 dev_t dev; 1606 dev_info_t *dip; 1607 cons_state_t *sp; 1608 cons_prop_t *prop; 1609 1610 /* 1611 * Retrieve the state information 1612 * So if there isn't a state available, then this entry point just 1613 * returns. See note in kb_config(). 1614 */ 1615 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1616 return (DACF_SUCCESS); 1617 1618 dip = dacf_devinfo_node(minor_hdl); 1619 major = ddi_driver_major(dip); 1620 ASSERT(major != (major_t)-1); 1621 minor = dacf_minor_number(minor_hdl); 1622 dev = makedevice(major, minor); 1623 ASSERT(dev != NODEV); 1624 1625 /* 1626 * Check if the keyboard/mouse that is being detached 1627 * is the console keyboard/mouse or not. 1628 */ 1629 mutex_enter(&sp->cons_lock); 1630 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1631 mutex_exit(&sp->cons_lock); 1632 return (DACF_SUCCESS); 1633 } 1634 1635 /* 1636 * This dev may be opened physically and then hotplugged out. 1637 */ 1638 if (prop->cp_muxid != -1) { 1639 (void) do_unconfig(sp, prop); 1640 consconfig_rem_dev(sp, dev); 1641 } 1642 1643 mutex_exit(&sp->cons_lock); 1644 1645 return (DACF_SUCCESS); 1646 } 1647 1648 /* 1649 * This is the post-attach / pre-detach action function for the keyboard 1650 * and mouse. This function is associated with a node type in /etc/dacf.conf. 1651 */ 1652 static int 1653 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1654 { 1655 _NOTE(ARGUNUSED(flags)) 1656 1657 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD)); 1658 } 1659 1660 static int 1661 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1662 { 1663 _NOTE(ARGUNUSED(flags)) 1664 1665 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS)); 1666 } 1667 1668 static int 1669 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1670 { 1671 _NOTE(ARGUNUSED(flags)) 1672 1673 return (kb_ms_unconfig(minor_hdl, arg_hdl)); 1674 } 1675 1676 static int 1677 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1678 { 1679 _NOTE(ARGUNUSED(flags)) 1680 1681 return (kb_ms_unconfig(minor_hdl, arg_hdl)); 1682 } 1683 1684 /* 1685 * consconfig_link and consconfig_unlink are provided to support 1686 * direct access to physical keyboard/mouse underlying conskbd/ 1687 * consms. 1688 * When the keyboard/mouse is opened physically via its device 1689 * file, it will be unlinked from the virtual one, and when it 1690 * is closed physically, it will be linked back under the virtual 1691 * one. 1692 */ 1693 void 1694 consconfig_link(major_t major, minor_t minor) 1695 { 1696 char buf[MAXPATHLEN]; 1697 dev_t dev; 1698 cons_state_t *sp; 1699 cons_prop_t *prop; 1700 1701 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1702 return; 1703 1704 dev = makedevice(major, minor); 1705 ASSERT(dev != NODEV); 1706 1707 mutex_enter(&sp->cons_lock); 1708 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1709 mutex_exit(&sp->cons_lock); 1710 return; 1711 } 1712 1713 if (do_config(sp, prop) != DACF_SUCCESS) { 1714 (void) ddi_dev_pathname(dev, 0, buf); 1715 if (prop->cp_type == CONS_KBD) 1716 cmn_err(CE_WARN, "Failed to relink the keyboard " 1717 "(%s) underneath virtual keyboard", buf); 1718 else 1719 cmn_err(CE_WARN, "Failed to relink the mouse " 1720 "(%s) underneath virtual mouse", buf); 1721 consconfig_rem_dev(sp, dev); 1722 } 1723 1724 mutex_exit(&sp->cons_lock); 1725 } 1726 1727 1728 int 1729 consconfig_unlink(major_t major, minor_t minor) 1730 { 1731 dev_t dev; 1732 cons_state_t *sp; 1733 cons_prop_t *prop; 1734 int error; 1735 1736 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1737 return (DACF_SUCCESS); 1738 1739 dev = makedevice(major, minor); 1740 ASSERT(dev != NODEV); 1741 1742 mutex_enter(&sp->cons_lock); 1743 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1744 mutex_exit(&sp->cons_lock); 1745 return (DACF_FAILURE); 1746 } 1747 1748 error = do_unconfig(sp, prop); 1749 1750 /* 1751 * Keep this dev on the list, for this dev is still online. 1752 */ 1753 mutex_exit(&sp->cons_lock); 1754 1755 return (error); 1756 } 1757 1758 /* 1759 * Routine to set baud rate, bits-per-char, parity and stop bits 1760 * on the console line when necessary. 1761 */ 1762 static int 1763 consconfig_setmodes(dev_t dev, struct termios *termiosp) 1764 { 1765 char buf[MAXPATHLEN]; 1766 int len = MAXPATHLEN; 1767 char name[16]; 1768 int ppos, i, j; 1769 char *path; 1770 dev_t tdev; 1771 1772 /* 1773 * First, search for a devalias which matches this dev_t. 1774 * Try all of ttya through ttyz until no such alias 1775 */ 1776 (void) strcpy(name, "ttya"); 1777 for (i = 0; i < ('z'-'a'); i++) { 1778 name[3] = 'a' + i; /* increment device name */ 1779 path = get_alias(name, buf); 1780 if (path == NULL) 1781 return (1); 1782 1783 tdev = ddi_pathname_to_dev_t(path); 1784 if (tdev == dev) 1785 break; /* Exit loop if found */ 1786 } 1787 1788 if (i >= ('z'-'a')) 1789 return (1); /* If we didn't find it, return */ 1790 1791 /* 1792 * Now that we know which "tty" this corresponds to, retrieve 1793 * the "ttya-mode" options property, which tells us how to configure 1794 * the line. 1795 */ 1796 (void) strcpy(name, "ttya-mode"); /* name of option we want */ 1797 name[3] = 'a' + i; /* Adjust to correct line */ 1798 1799 for (j = 0; j < sizeof (buf); j++) 1800 buf[j] = 0; /* CROCK! */ 1801 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name, 1802 buf, &len) != DDI_PROP_SUCCESS) 1803 return (1); /* if no such option, just return */ 1804 1805 /* Clear out options we will be setting */ 1806 termiosp->c_cflag &= 1807 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB); 1808 1809 /* 1810 * Now, parse the string. Wish I could use sscanf(). 1811 * Format 9600,8,n,1,- 1812 * baud rate, bits-per-char, parity, stop-bits, ignored 1813 */ 1814 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */ 1815 if ((buf[ppos] == 0) || (buf[ppos] == ',')) 1816 break; 1817 } 1818 1819 if (buf[ppos] != ',') { 1820 cmn_err(CE_WARN, "consconfig_setmodes: " 1821 "invalid mode string %s", buf); 1822 return (1); 1823 } 1824 1825 for (i = 0; i < MAX_SPEEDS; i++) { 1826 if (strncmp(buf, speedtab[i].name, ppos) == 0) 1827 break; 1828 } 1829 1830 if (i >= MAX_SPEEDS) { 1831 cmn_err(CE_WARN, 1832 "consconfig_setmodes: unrecognized speed in %s", buf); 1833 return (1); 1834 } 1835 1836 /* Found the baud rate, set it */ 1837 termiosp->c_cflag |= speedtab[i].code & CBAUD; 1838 if (speedtab[i].code > 16) /* cfsetospeed! */ 1839 termiosp->c_cflag |= CBAUDEXT; 1840 1841 /* Set bits per character */ 1842 switch (buf[ppos+1]) { 1843 case '8': 1844 termiosp->c_cflag |= CS8; 1845 break; 1846 case '7': 1847 termiosp->c_cflag |= CS7; 1848 break; 1849 default: 1850 cmn_err(CE_WARN, 1851 "consconfig_setmodes: illegal bits-per-char %s", buf); 1852 return (1); 1853 } 1854 1855 /* Set parity */ 1856 switch (buf[ppos+3]) { 1857 case 'o': 1858 termiosp->c_cflag |= PARENB | PARODD; 1859 break; 1860 case 'e': 1861 termiosp->c_cflag |= PARENB; /* enabled, not odd */ 1862 break; 1863 case 'n': 1864 break; /* not enabled. */ 1865 default: 1866 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf); 1867 return (1); 1868 } 1869 1870 /* Set stop bits */ 1871 switch (buf[ppos+5]) { 1872 case '1': 1873 break; /* No extra stop bit */ 1874 case '2': 1875 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */ 1876 break; 1877 default: 1878 cmn_err(CE_WARN, "consconfig_setmodes: " 1879 "illegal stop bits %s", buf); 1880 return (1); 1881 } 1882 1883 return (0); 1884 } 1885 1886 /* 1887 * Check to see if underlying keyboard devices are still online, 1888 * if any one is offline now, unlink it. 1889 */ 1890 static void 1891 consconfig_check_phys_kbd(cons_state_t *sp) 1892 { 1893 ldi_handle_t kb_lh; 1894 cons_prop_t *prop; 1895 int error; 1896 int rval; 1897 1898 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) { 1899 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1)) 1900 continue; 1901 1902 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR, 1903 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li); 1904 1905 if (error) { 1906 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK, 1907 prop->cp_muxid, FKIOCTL, kcred, &rval); 1908 prop->cp_dev = NODEV; 1909 } else { 1910 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred); 1911 } 1912 } 1913 1914 /* 1915 * Remove all disconnected keyboards, 1916 * whose dev is turned into NODEV above. 1917 */ 1918 consconfig_rem_dev(sp, NODEV); 1919 } 1920 1921 /* 1922 * Remove devices according to dev, which may be NODEV 1923 */ 1924 static void 1925 consconfig_rem_dev(cons_state_t *sp, dev_t dev) 1926 { 1927 cons_prop_t *prop; 1928 cons_prop_t *prev_prop; 1929 cons_prop_t *tmp_prop; 1930 cons_prop_t *head_prop; 1931 1932 head_prop = NULL; 1933 prev_prop = NULL; 1934 for (prop = sp->cons_km_prop; prop != NULL; ) { 1935 if (prop->cp_dev == dev) { 1936 tmp_prop = prop->cp_next; 1937 consconfig_free_prop(prop); 1938 prop = tmp_prop; 1939 if (prev_prop) 1940 prev_prop->cp_next = prop; 1941 } else { 1942 if (head_prop == NULL) 1943 head_prop = prop; 1944 prev_prop = prop; 1945 prop = prop->cp_next; 1946 } 1947 } 1948 sp->cons_km_prop = head_prop; 1949 } 1950 1951 /* 1952 * Add a dev according to prop 1953 */ 1954 static void 1955 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop) 1956 { 1957 prop->cp_next = sp->cons_km_prop; 1958 sp->cons_km_prop = prop; 1959 } 1960 1961 /* 1962 * Find a device from our list according to dev 1963 */ 1964 static cons_prop_t * 1965 consconfig_find_dev(cons_state_t *sp, dev_t dev) 1966 { 1967 cons_prop_t *prop; 1968 1969 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) { 1970 if (prop->cp_dev == dev) 1971 break; 1972 } 1973 1974 return (prop); 1975 } 1976 1977 /* 1978 * Free a cons prop associated with a keyboard or mouse 1979 */ 1980 static void 1981 consconfig_free_prop(cons_prop_t *prop) 1982 { 1983 if (prop->cp_pushmod) 1984 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1); 1985 kmem_free(prop, sizeof (cons_prop_t)); 1986 } 1987 1988 /* 1989 * Boot code can't print to usb serial device. The early boot message 1990 * is saved in a buffer at address indicated by "usb-serial-buf". 1991 * This function flushes the message to the USB serial line 1992 */ 1993 static void 1994 flush_usb_serial_buf(void) 1995 { 1996 int rval; 1997 vnode_t *vp; 1998 uint_t usbser_buf; 1999 char *kc, *bc, *usbser_kern_buf; 2000 2001 usbser_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(), 2002 DDI_PROP_DONTPASS, "usb-serial-buf", 0); 2003 2004 if (usbser_buf == 0) 2005 return; 2006 2007 /* 2008 * After consconfig() and before userland opens /dev/sysmsg, 2009 * console I/O is goes to polled I/O entry points. 2010 * 2011 * If usb-serial doesn't implement polled I/O, we need 2012 * to open /dev/console now to get kernel console I/O to work. 2013 * We also push ttcompat and ldterm explicitly to get the 2014 * correct output format (autopush isn't set up yet). We 2015 * ignore push errors because they are non-fatal. 2016 * Note that opening /dev/console causes rconsvp to be 2017 * opened as well. 2018 */ 2019 if (cons_polledio == NULL) { 2020 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY, 2021 0, &vp, 0, 0) != 0) 2022 return; 2023 2024 if (rconsvp) { 2025 (void) strioctl(rconsvp, __I_PUSH_NOCTTY, 2026 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval); 2027 (void) strioctl(rconsvp, __I_PUSH_NOCTTY, 2028 (intptr_t)"ttcompat", FKIOCTL, K_TO_K, 2029 kcred, &rval); 2030 } 2031 } 2032 2033 /* 2034 * Copy message to a kernel buffer. Various kernel routines 2035 * expect buffer to be above kernelbase 2036 */ 2037 kc = usbser_kern_buf = (char *)kmem_zalloc(MMU_PAGESIZE, KM_SLEEP); 2038 bc = (char *)(uintptr_t)usbser_buf; 2039 while (*kc++ = *bc++) 2040 ; 2041 console_printf("%s", usbser_kern_buf); 2042 2043 kmem_free(usbser_kern_buf, MMU_PAGESIZE); 2044 } 2045