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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * This module performs two functions. First, it kicks off the driver loading 29 * of the console devices during boot in dynamic_console_config(). 30 * The loading of the drivers for the console devices triggers the 31 * additional device autoconfiguration to link the drivers into the keyboard 32 * and mouse console streams. 33 * 34 * The second function of this module is to provide the dacf functions 35 * to be called after a driver has attached and before it detaches. For 36 * example, a driver associated with the keyboard will have kb_config called 37 * after the driver attaches and kb_unconfig before it detaches. Similar 38 * configuration actions are performed on behalf of minor nodes representing 39 * mice. The configuration functions for the attach case take a module 40 * name as a parameter. The module is pushed on top of the driver during 41 * the configuration. 42 * 43 * Although the dacf framework is used to configure all keyboards and mice, 44 * its primary function is to allow keyboard and mouse hotplugging. 45 * 46 * This module supports multiple keyboards and mice at the same time. 47 * 48 * From the kernel perspective, there are roughly three different possible 49 * console configurations. Across these three configurations, the following 50 * elements are constant: 51 * wsconsvp = IWSCN_PATH 52 * rwsconsvp = WC_PATH 53 * consms -> msdev 54 * 55 * The "->" syntax indicates that the streams device on the right is 56 * linked under the streams device on the left. 57 * 58 * The following lists how the system is configured for different setups: 59 * 60 * stdin is a local keyboard. use stdin and stdout as the console. 61 * sp->cons_input_type = CONSOLE_LOCAL 62 * rconsvp = IWSCN_PATH 63 * wc -> conskbd -> kbddev 64 * 65 * stdin is not a keyboard and stdin is the same as stdout. 66 * assume we running on a tip line and use stdin/stdout as the console. 67 * sp->cons_input_type = CONSOLE_TIP 68 * rconsvp = (stdindev/stdoutdev) 69 * wc -> conskbd -> kbddev 70 * 71 * stdin is not a keyboard device and it's not the same as stdout. 72 * assume we have a serial keyboard hooked up and use it along with 73 * stdout as the console. 74 * sp->cons_input_type = CONSOLE_SERIAL_KEYBOARD 75 * rconsvp = IWSCN_PATH 76 * wc -> stdindev 77 * conskbd -> kbddev 78 * 79 * CAVEAT: 80 * The above is all true except for one possible Intel configuration. 81 * If stdin is set to a local keyboard but stdout is set to something 82 * other than the local display (a tip port for example) stdout will 83 * still go to the local display. This is an artifact of the console 84 * implementation on intel. 85 */ 86 87 #include <sys/types.h> 88 #include <sys/param.h> 89 #include <sys/cmn_err.h> 90 #include <sys/user.h> 91 #include <sys/vfs.h> 92 #include <sys/vnode.h> 93 #include <sys/pathname.h> 94 #include <sys/systm.h> 95 #include <sys/file.h> 96 #include <sys/stropts.h> 97 #include <sys/stream.h> 98 #include <sys/strsubr.h> 99 100 #include <sys/consdev.h> 101 #include <sys/console.h> 102 #include <sys/wscons.h> 103 #include <sys/kbio.h> 104 #include <sys/debug.h> 105 #include <sys/reboot.h> 106 #include <sys/termios.h> 107 108 #include <sys/ddi.h> 109 #include <sys/sunddi.h> 110 #include <sys/sunldi.h> 111 #include <sys/sunndi.h> 112 #include <sys/ndi_impldefs.h> 113 #include <sys/modctl.h> 114 #include <sys/ddi_impldefs.h> 115 #include <sys/ddi_implfuncs.h> 116 #include <sys/promif.h> 117 #include <sys/fs/snode.h> 118 119 #include <sys/errno.h> 120 #include <sys/devops.h> 121 #include <sys/note.h> 122 123 #include <sys/tem_impl.h> 124 #include <sys/polled_io.h> 125 #include <sys/kmem.h> 126 #include <sys/dacf.h> 127 #include <sys/consconfig_dacf.h> 128 #include <sys/consplat.h> 129 #include <sys/log.h> 130 #include <sys/disp.h> 131 132 /* 133 * External global variables 134 */ 135 extern vnode_t *rconsvp; 136 extern dev_t rwsconsdev; 137 138 /* 139 * External functions 140 */ 141 extern uintptr_t space_fetch(char *key); 142 extern int space_store(char *key, uintptr_t ptr); 143 144 /* 145 * Tasks 146 */ 147 static int kb_config(dacf_infohdl_t, dacf_arghdl_t, int); 148 static int kb_unconfig(dacf_infohdl_t, dacf_arghdl_t, int); 149 static int ms_config(dacf_infohdl_t, dacf_arghdl_t, int); 150 static int ms_unconfig(dacf_infohdl_t, dacf_arghdl_t, int); 151 152 /* 153 * Internal functions 154 */ 155 static int consconfig_setmodes(dev_t dev, struct termios *termiosp); 156 static void consconfig_check_phys_kbd(cons_state_t *); 157 static void consconfig_rem_dev(cons_state_t *, dev_t); 158 static void consconfig_add_dev(cons_state_t *, cons_prop_t *); 159 static cons_prop_t *consconfig_find_dev(cons_state_t *, dev_t); 160 static void consconfig_free_prop(cons_prop_t *prop); 161 static void flush_deferred_console_buf(void); 162 163 164 /* 165 * On supported configurations, the firmware defines the keyboard and mouse 166 * paths. However, during USB development, it is useful to be able to use 167 * the USB keyboard and mouse on machines without full USB firmware support. 168 * These variables may be set in /etc/system according to a machine's 169 * USB configuration. This module will override the firmware's values 170 * with these. 171 * 172 * NOTE: 173 * The master copies of these variables in the misc/consconfig module. 174 * The reason for this is historic. In versions of solaris up to and 175 * including solaris 9 the conscole configuration code was split into a 176 * seperate sparc and intel version. These variables were defined 177 * in misc/consconfig on sparc and dacf/consconfig_dacf on intel. 178 * 179 * Unfortunatly the sparc variables were well documented. 180 * So to aviod breaking either sparc or intel we'll declare the variables 181 * in both modules. This will allow any /etc/system entries that 182 * users may have to continue working. 183 * 184 * The variables in misc/consconfig will take precedence over the variables 185 * found in this file. Since we eventually want to remove the variables 186 * local to this this file, if the user set them we'll emmit an error 187 * message telling them they need to set the variables in misc/consconfig 188 * instead. 189 */ 190 static char *usb_kb_path = NULL; 191 static char *usb_ms_path = NULL; 192 193 /* 194 * Access functions in the misc/consconfig module used to retrieve the 195 * values of it local usb_kb_path and usb_ms_path variables 196 */ 197 extern char *consconfig_get_usb_kb_path(); 198 extern char *consconfig_get_usb_ms_path(); 199 200 /* 201 * Local variables used to store the value of the usb_kb_path and 202 * usb_ms_path variables found in misc/consconfig 203 */ 204 static char *consconfig_usb_kb_path = NULL; 205 static char *consconfig_usb_ms_path = NULL; 206 207 /* 208 * Internal variables 209 */ 210 static dev_t stdoutdev; 211 static cons_state_t *consconfig_sp; 212 213 /* 214 * consconfig_errlevel: debug verbosity; smaller numbers are more 215 * verbose. 216 */ 217 int consconfig_errlevel = DPRINT_L3; 218 219 /* 220 * Baud rate table 221 */ 222 static struct speed { 223 char *name; 224 int code; 225 } speedtab[] = { 226 {"0", B0}, {"50", B50}, {"75", B75}, 227 {"110", B110}, {"134", B134}, {"150", B150}, 228 {"200", B200}, {"300", B300}, {"600", B600}, 229 {"1200", B1200}, {"1800", B1800}, {"2400", B2400}, 230 {"4800", B4800}, {"9600", B9600}, {"19200", B19200}, 231 {"38400", B38400}, {"57600", B57600}, {"76800", B76800}, 232 {"115200", B115200}, {"153600", B153600}, {"230400", B230400}, 233 {"307200", B307200}, {"460800", B460800}, {"921600", B921600}, 234 {"", 0} 235 }; 236 237 static const int MAX_SPEEDS = sizeof (speedtab) / sizeof (speedtab[0]); 238 239 static dacf_op_t kbconfig_op[] = { 240 { DACF_OPID_POSTATTACH, kb_config }, 241 { DACF_OPID_PREDETACH, kb_unconfig }, 242 { DACF_OPID_END, NULL }, 243 }; 244 245 static dacf_op_t msconfig_op[] = { 246 { DACF_OPID_POSTATTACH, ms_config }, 247 { DACF_OPID_PREDETACH, ms_unconfig }, 248 { DACF_OPID_END, NULL }, 249 }; 250 251 static dacf_opset_t opsets[] = { 252 { "kb_config", kbconfig_op }, 253 { "ms_config", msconfig_op }, 254 { NULL, NULL } 255 }; 256 257 struct dacfsw dacfsw = { 258 DACF_MODREV_1, 259 opsets, 260 }; 261 262 static struct modldacf modldacf = { 263 &mod_dacfops, /* Type of module */ 264 "Consconfig DACF", 265 &dacfsw 266 }; 267 268 static struct modlinkage modlinkage = { 269 MODREV_1, (void *)&modldacf, NULL 270 }; 271 272 int 273 _init(void) { 274 return (mod_install(&modlinkage)); 275 } 276 277 int 278 _fini(void) 279 { 280 /* 281 * This modules state is held in the kernel by space.c 282 * allowing this module to be unloaded. 283 */ 284 return (mod_remove(&modlinkage)); 285 } 286 287 int 288 _info(struct modinfo *modinfop) 289 { 290 return (mod_info(&modlinkage, modinfop)); 291 } 292 293 /*PRINTFLIKE2*/ 294 static void consconfig_dprintf(int, const char *, ...) 295 __KPRINTFLIKE(2); 296 297 static void 298 consconfig_dprintf(int l, const char *fmt, ...) 299 { 300 va_list ap; 301 302 #ifndef DEBUG 303 if (!l) { 304 return; 305 } 306 #endif /* DEBUG */ 307 if (l < consconfig_errlevel) { 308 return; 309 } 310 311 va_start(ap, fmt); 312 (void) vprintf(fmt, ap); 313 va_end(ap); 314 } 315 316 /* 317 * Return a property value for the specified alias in /aliases. 318 */ 319 char * 320 get_alias(char *alias, char *buf) 321 { 322 pnode_t node; 323 int len; 324 325 /* The /aliases node only exists in OBP >= 2.4. */ 326 if ((node = prom_alias_node()) == OBP_BADNODE) 327 return (NULL); 328 329 if ((len = prom_getproplen(node, (caddr_t)alias)) <= 0) 330 return (NULL); 331 332 (void) prom_getprop(node, (caddr_t)alias, (caddr_t)buf); 333 334 /* 335 * The IEEE 1275 standard specifies that /aliases string property 336 * values should be null-terminated. Unfortunatly the reality 337 * is that most aren't and the OBP can't easily be modified to 338 * add null termination to these strings. So we'll add the 339 * null termination here. If the string already contains a 340 * null termination character then that's ok too because we'll 341 * just be adding a second one. 342 */ 343 buf[len] = '\0'; 344 345 prom_pathname(buf); 346 return (buf); 347 } 348 349 /* 350 * i_consconfig_createvp: 351 * This routine is a convenience routine that is passed a path and returns 352 * a vnode. 353 */ 354 static vnode_t * 355 i_consconfig_createvp(char *path) 356 { 357 int error; 358 vnode_t *vp; 359 char *buf = NULL, *fullpath; 360 361 DPRINTF(DPRINT_L0, "i_consconfig_createvp: %s\n", path); 362 fullpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); 363 364 if (strchr(path, ':') == NULL) { 365 /* convert an OBP path to a /devices path */ 366 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP); 367 if (i_ddi_prompath_to_devfspath(path, buf) != DDI_SUCCESS) { 368 kmem_free(buf, MAXPATHLEN); 369 kmem_free(fullpath, MAXPATHLEN); 370 return (NULL); 371 } 372 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", buf); 373 kmem_free(buf, MAXPATHLEN); 374 } else { 375 /* convert a devfs path to a /devices path */ 376 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", path); 377 } 378 379 DPRINTF(DPRINT_L0, "lookupname(%s)\n", fullpath); 380 error = lookupname(fullpath, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp); 381 kmem_free(fullpath, MAXPATHLEN); 382 if (error) 383 return (NULL); 384 385 DPRINTF(DPRINT_L0, "create vnode = 0x%p - dev 0x%lx\n", vp, vp->v_rdev); 386 ASSERT(vn_matchops(vp, spec_getvnodeops())); 387 388 return (vp); 389 } 390 391 /* 392 * consconfig_print_paths: 393 * Function to print out the various paths 394 */ 395 static void 396 consconfig_print_paths(void) 397 { 398 char *path; 399 400 if (usb_kb_path != NULL) 401 cmn_err(CE_WARN, 402 "consconfig_dacf:usb_kb_path has been deprecated, " 403 "use consconfig:usb_kb_path instead"); 404 405 if (usb_ms_path != NULL) 406 cmn_err(CE_WARN, 407 "consconfig_dacf:usb_ms_path has been deprecated, " 408 "use consconfig:usb_ms_path instead"); 409 410 if (consconfig_errlevel > DPRINT_L0) 411 return; 412 413 path = NULL; 414 if (consconfig_usb_kb_path != NULL) 415 path = consconfig_usb_kb_path; 416 else if (usb_kb_path != NULL) 417 path = usb_kb_path; 418 if (path != NULL) 419 DPRINTF(DPRINT_L0, "usb keyboard path = %s\n", path); 420 421 path = plat_kbdpath(); 422 if (path != NULL) 423 DPRINTF(DPRINT_L0, "keyboard path = %s\n", path); 424 425 path = NULL; 426 if (consconfig_usb_ms_path != NULL) 427 path = consconfig_usb_ms_path; 428 else if (usb_ms_path != NULL) 429 path = usb_ms_path; 430 if (path != NULL) 431 DPRINTF(DPRINT_L0, "usb mouse path = %s\n", path); 432 433 path = plat_mousepath(); 434 if (path != NULL) 435 DPRINTF(DPRINT_L0, "mouse path = %s\n", path); 436 437 path = plat_stdinpath(); 438 if (path != NULL) 439 DPRINTF(DPRINT_L0, "stdin path = %s\n", path); 440 441 path = plat_stdoutpath(); 442 if (path != NULL) 443 DPRINTF(DPRINT_L0, "stdout path = %s\n", path); 444 445 path = plat_fbpath(); 446 if (path != NULL) 447 DPRINTF(DPRINT_L0, "fb path = %s\n", path); 448 } 449 450 /* 451 * consconfig_kbd_abort_enable: 452 * Send the CONSSETABORTENABLE ioctl to the lower layers. This ioctl 453 * will only be sent to the device if it is the console device. 454 * This ioctl tells the device to pay attention to abort sequences. 455 * In the case of kbtrans, this would tell the driver to pay attention 456 * to the two key abort sequences like STOP-A. In the case of the 457 * serial keyboard, it would be an abort sequence like a break. 458 */ 459 static int 460 consconfig_kbd_abort_enable(ldi_handle_t lh) 461 { 462 int err, rval; 463 464 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_enable\n"); 465 466 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_TRUE, 467 FKIOCTL, kcred, &rval); 468 return (err); 469 } 470 471 /* 472 * consconfig_kbd_abort_disable: 473 * Send CONSSETABORTENABLE ioctl to lower layers. This ioctl 474 * will only be sent to the device if it is the console device. 475 * This ioctl tells the physical device to ignore abort sequences, 476 * and send the sequences up to virtual keyboard(conskbd) so that 477 * STOP and A (or F1 and A) can be combined. 478 */ 479 static int 480 consconfig_kbd_abort_disable(ldi_handle_t lh) 481 { 482 int err, rval; 483 484 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_disable\n"); 485 486 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_FALSE, 487 FKIOCTL, kcred, &rval); 488 return (err); 489 } 490 491 #ifdef _HAVE_TEM_FIRMWARE 492 static int 493 consconfig_tem_supported(cons_state_t *sp) 494 { 495 dev_t dev; 496 dev_info_t *dip; 497 int *int_array; 498 uint_t nint; 499 int rv = 0; 500 501 if (sp->cons_fb_path == NULL) 502 return (0); 503 504 if ((dev = ddi_pathname_to_dev_t(sp->cons_fb_path)) == NODEV) 505 return (0); /* warning printed later by common code */ 506 507 /* 508 * Here we hold the driver and check "tem-support" property. 509 * We're doing this with e_ddi_hold_devi_by_dev and 510 * ddi_prop_lookup_int_array without opening the driver since 511 * some video cards that don't support the kernel terminal 512 * emulator could hang or crash if opened too early during 513 * boot. 514 */ 515 if ((dip = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) { 516 cmn_err(CE_WARN, "consconfig: cannot hold fb dev %s", 517 sp->cons_fb_path); 518 return (0); 519 } 520 521 /* 522 * Check that the tem-support property exists AND that 523 * it is equal to 1. 524 */ 525 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, 526 DDI_PROP_DONTPASS, "tem-support", &int_array, &nint) == 527 DDI_SUCCESS) { 528 if (nint > 0) 529 rv = int_array[0] == 1; 530 ddi_prop_free(int_array); 531 } 532 533 ddi_release_devi(dip); 534 535 return (rv); 536 } 537 #endif /* _HAVE_TEM_FIRMWARE */ 538 539 /* 540 * consconfig_get_polledio: 541 * Query the console with the CONSPOLLEDIO ioctl. 542 * The polled I/O routines are used by debuggers to perform I/O while 543 * interrupts and normal kernel services are disabled. 544 */ 545 static cons_polledio_t * 546 consconfig_get_polledio(ldi_handle_t lh) 547 { 548 int err, rval; 549 struct strioctl strioc; 550 cons_polledio_t *polled_io; 551 552 /* 553 * Setup the ioctl to be sent down to the lower driver. 554 */ 555 strioc.ic_cmd = CONSOPENPOLLEDIO; 556 strioc.ic_timout = INFTIM; 557 strioc.ic_len = sizeof (polled_io); 558 strioc.ic_dp = (char *)&polled_io; 559 560 /* 561 * Send the ioctl to the driver. The ioctl will wait for 562 * the response to come back from wc. wc has already issued 563 * the CONSOPENPOLLEDIO to the lower layer driver. 564 */ 565 err = ldi_ioctl(lh, I_STR, (intptr_t)&strioc, FKIOCTL, kcred, &rval); 566 567 if (err != 0) { 568 /* 569 * If the lower driver does not support polled I/O, then 570 * return NULL. This will be the case if the driver does 571 * not handle polled I/O, or OBP is going to handle polled 572 * I/O for the device. 573 */ 574 575 return (NULL); 576 } 577 578 /* 579 * Return the polled I/O structure. 580 */ 581 return (polled_io); 582 } 583 584 /* 585 * consconfig_setup_polledio: 586 * This routine does the setup work for polled I/O. First we get 587 * the polled_io structure from the lower layers 588 * and then we register the polled I/O 589 * callbacks with the debugger that will be using them. 590 */ 591 static void 592 consconfig_setup_polledio(cons_state_t *sp, dev_t dev) 593 { 594 cons_polledio_t *polled_io; 595 ldi_handle_t lh; 596 597 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: start\n"); 598 599 600 if (ldi_open_by_dev(&dev, OTYP_CHR, 601 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li) != 0) 602 return; 603 604 605 /* 606 * Get the polled io routines so that we can use this 607 * device with the debuggers. 608 */ 609 polled_io = consconfig_get_polledio(lh); 610 611 /* 612 * If the get polledio failed, then we do not want to throw 613 * the polled I/O switch. 614 */ 615 if (polled_io == NULL) { 616 DPRINTF(DPRINT_L0, 617 "consconfig_setup_polledio: get_polledio failed\n"); 618 (void) ldi_close(lh, FREAD|FWRITE, kcred); 619 return; 620 } 621 622 /* Initialize the polled input */ 623 polled_io_init(); 624 625 /* Register the callbacks */ 626 DPRINTF(DPRINT_L0, 627 "consconfig_setup_polledio: registering callbacks\n"); 628 (void) polled_io_register_callbacks(polled_io, 0); 629 630 (void) ldi_close(lh, FREAD|FWRITE, kcred); 631 632 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: end\n"); 633 } 634 635 static cons_state_t * 636 consconfig_state_init(void) 637 { 638 cons_state_t *sp; 639 int rval; 640 641 /* Initialize console information */ 642 sp = kmem_zalloc(sizeof (cons_state_t), KM_SLEEP); 643 sp->cons_keyboard_problem = B_FALSE; 644 645 mutex_init(&sp->cons_lock, NULL, MUTEX_DRIVER, NULL); 646 647 /* check if consconfig:usb_kb_path is set in /etc/system */ 648 consconfig_usb_kb_path = consconfig_get_usb_kb_path(); 649 650 /* check if consconfig:usb_ms_path is set in /etc/system */ 651 consconfig_usb_ms_path = consconfig_get_usb_ms_path(); 652 653 consconfig_print_paths(); 654 655 /* init external globals */ 656 stdoutdev = NODEV; 657 658 /* 659 * Find keyboard, mouse, stdin and stdout devices, if they 660 * exist on this platform. 661 */ 662 663 if (consconfig_usb_kb_path != NULL) { 664 sp->cons_keyboard_path = consconfig_usb_kb_path; 665 } else if (usb_kb_path != NULL) { 666 sp->cons_keyboard_path = usb_kb_path; 667 } else { 668 sp->cons_keyboard_path = plat_kbdpath(); 669 } 670 671 if (consconfig_usb_ms_path != NULL) { 672 sp->cons_mouse_path = consconfig_usb_ms_path; 673 } else if (usb_ms_path != NULL) { 674 sp->cons_mouse_path = usb_ms_path; 675 } else { 676 sp->cons_mouse_path = plat_mousepath(); 677 } 678 679 /* Identify the stdout driver */ 680 sp->cons_stdout_path = plat_stdoutpath(); 681 sp->cons_stdout_is_fb = plat_stdout_is_framebuffer(); 682 683 sp->cons_stdin_is_kbd = plat_stdin_is_keyboard(); 684 685 if (sp->cons_stdin_is_kbd && 686 (usb_kb_path != NULL || consconfig_usb_kb_path != NULL)) { 687 sp->cons_stdin_path = sp->cons_keyboard_path; 688 } else { 689 /* 690 * The standard in device may or may not be the same as 691 * the keyboard. Even if the keyboard is not the 692 * standard input, the keyboard console stream will 693 * still be built if the keyboard alias provided by the 694 * firmware exists and is valid. 695 */ 696 sp->cons_stdin_path = plat_stdinpath(); 697 } 698 699 if (sp->cons_stdout_is_fb) { 700 sp->cons_fb_path = sp->cons_stdout_path; 701 702 #ifdef _HAVE_TEM_FIRMWARE 703 sp->cons_tem_supported = consconfig_tem_supported(sp); 704 705 /* 706 * Systems which offer a virtual console must use that 707 * as a fallback whenever the fb doesn't support tem. 708 * Such systems cannot render characters to the screen 709 * using OBP. 710 */ 711 if (!sp->cons_tem_supported) { 712 char *path; 713 714 if (plat_virtual_console_path(&path) >= 0) { 715 sp->cons_stdin_is_kbd = 0; 716 sp->cons_stdout_is_fb = 0; 717 sp->cons_stdin_path = path; 718 sp->cons_stdout_path = path; 719 sp->cons_fb_path = plat_fbpath(); 720 721 cmn_err(CE_WARN, 722 "%s doesn't support terminal emulation " 723 "mode; switching to virtual console.", 724 sp->cons_fb_path); 725 } 726 } 727 #endif /* _HAVE_TEM_FIRMWARE */ 728 } else { 729 sp->cons_fb_path = plat_fbpath(); 730 #ifdef _HAVE_TEM_FIRMWARE 731 sp->cons_tem_supported = consconfig_tem_supported(sp); 732 #endif /* _HAVE_TEM_FIRMWARE */ 733 } 734 735 sp->cons_li = ldi_ident_from_anon(); 736 737 /* Save the pointer for retrieval by the dacf functions */ 738 rval = space_store("consconfig", (uintptr_t)sp); 739 ASSERT(rval == 0); 740 741 return (sp); 742 } 743 744 static int 745 consconfig_relink_wc(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 746 { 747 int err, rval; 748 ldi_handle_t wc_lh; 749 dev_t wc_dev; 750 751 ASSERT(muxid != NULL); 752 753 /* 754 * NOTE: we could be in a dacf callback context right now. normally 755 * it's not legal to call any ldi_open_*() function from this context 756 * because we're currently holding device tree locks and if the 757 * ldi_open_*() call could try to acquire other device tree locks 758 * (to attach the device we're trying to open.) if this happens then 759 * we could deadlock. To avoid this situation, during initialization 760 * we made sure to grab a hold on the dip of the device we plan to 761 * open so that it can never be detached. Then we use 762 * ldi_open_by_dev() to actually open the device since it will see 763 * that the device is already attached and held and instead of 764 * acquire any locks it will only increase the reference count 765 * on the device. 766 */ 767 wc_dev = sp->cons_wc_vp->v_rdev; 768 err = ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, 769 kcred, &wc_lh, sp->cons_li); 770 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev); 771 if (err) { 772 cmn_err(CE_WARN, "consconfig_relink_wc: " 773 "unable to open wc device"); 774 return (err); 775 } 776 777 if (new_lh != NULL) { 778 DPRINTF(DPRINT_L0, "linking stream under wc\n"); 779 780 err = ldi_ioctl(wc_lh, I_PLINK, (uintptr_t)new_lh, 781 FKIOCTL, kcred, muxid); 782 if (err != 0) { 783 cmn_err(CE_WARN, "consconfig_relink_wc: " 784 "wc link failed, error %d", err); 785 } 786 } else { 787 DPRINTF(DPRINT_L0, "unlinking stream from under wc\n"); 788 789 err = ldi_ioctl(wc_lh, I_PUNLINK, *muxid, 790 FKIOCTL, kcred, &rval); 791 if (err != 0) { 792 cmn_err(CE_WARN, "consconfig_relink_wc: " 793 "wc unlink failed, error %d", err); 794 } else { 795 *muxid = -1; 796 } 797 } 798 799 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred); 800 return (err); 801 } 802 803 static void 804 cons_build_upper_layer(cons_state_t *sp) 805 { 806 ldi_handle_t wc_lh; 807 struct strioctl strioc; 808 int rval; 809 dev_t dev; 810 dev_t wc_dev; 811 812 /* 813 * Build the wc->conskbd portion of the keyboard console stream. 814 * Even if no keyboard is attached to the system, the upper 815 * layer of the stream will be built. If the user attaches 816 * a keyboard after the system is booted, the keyboard driver 817 * and module will be linked under conskbd. 818 * 819 * Errors are generally ignored here because conskbd and wc 820 * are pseudo drivers and should be present on the system. 821 */ 822 823 /* open the console keyboard device. will never be closed */ 824 if (ldi_open_by_name(CONSKBD_PATH, FREAD|FWRITE|FNOCTTY, 825 kcred, &sp->conskbd_lh, sp->cons_li) != 0) { 826 panic("consconfig: unable to open conskbd device"); 827 /*NOTREACHED*/ 828 } 829 830 DPRINTF(DPRINT_L0, "conskbd_lh = %p\n", sp->conskbd_lh); 831 832 /* open the console mouse device. will never be closed */ 833 if (ldi_open_by_name(CONSMS_PATH, FREAD|FWRITE|FNOCTTY, 834 kcred, &sp->consms_lh, sp->cons_li) != 0) { 835 panic("consconfig: unable to open consms device"); 836 /*NOTREACHED*/ 837 } 838 839 DPRINTF(DPRINT_L0, "consms_lh = %p\n", sp->consms_lh); 840 841 /* 842 * Get a vnode for the wc device and then grab a hold on the 843 * device dip so it can never detach. We need to do this now 844 * because later we'll have to open the wc device in a context 845 * were it isn't safe to acquire any device tree locks (ie, during 846 * a dacf callback.) 847 */ 848 sp->cons_wc_vp = i_consconfig_createvp(WC_PATH); 849 if (sp->cons_wc_vp == NULL) 850 panic("consconfig: unable to find wc device"); 851 852 if (e_ddi_hold_devi_by_dev(sp->cons_wc_vp->v_rdev, 0) == NULL) 853 panic("consconfig: unable to hold wc device"); 854 855 /* 856 * Build the wc->conskbd portion of the keyboard console stream. 857 * Even if no keyboard is attached to the system, the upper 858 * layer of the stream will be built. If the user attaches 859 * a keyboard after the system is booted, the keyboard driver 860 * and module will be linked under conskbd. 861 * 862 * The act of linking conskbd under wc will cause wc to 863 * query the lower layers about their polled I/O routines 864 * using CONSOPENPOLLEDIO. This will fail on this link because 865 * there is not a physical keyboard linked under conskbd. 866 * 867 * Since conskbd and wc are pseudo drivers, errors are 868 * generally ignored when linking and unlinking them. 869 */ 870 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 871 872 /* 873 * Get a vnode for the redirection device. (It has the 874 * connection to the workstation console device wired into it, 875 * so that it's not necessary to establish the connection 876 * here. If the redirection device is ever generalized to 877 * handle multiple client devices, it won't be able to 878 * establish the connection itself, and we'll have to do it 879 * here.) 880 */ 881 wsconsvp = i_consconfig_createvp(IWSCN_PATH); 882 if (wsconsvp == NULL) { 883 panic("consconfig: unable to find iwscn device"); 884 /*NOTREACHED*/ 885 } 886 887 if (cons_tem_disable) 888 return; 889 890 if (sp->cons_fb_path == NULL) { 891 #if defined(__x86) 892 if (sp->cons_stdout_is_fb) 893 cmn_err(CE_WARN, "consconfig: no screen found"); 894 #endif 895 return; 896 } 897 898 /* make sure the frame buffer device exists */ 899 dev = ddi_pathname_to_dev_t(sp->cons_fb_path); 900 if (dev == NODEV) { 901 cmn_err(CE_WARN, "consconfig: " 902 "cannot find driver for screen device %s", 903 sp->cons_fb_path); 904 return; 905 } 906 907 #ifdef _HAVE_TEM_FIRMWARE 908 /* 909 * If the underlying fb device doesn't support terminal emulation, 910 * we don't want to open the wc device (below) because it depends 911 * on features which aren't available (polled mode io). 912 */ 913 if (!sp->cons_tem_supported) 914 return; 915 #endif /* _HAVE_TEM_FIRMWARE */ 916 917 /* tell wc to open the frame buffer device */ 918 wc_dev = sp->cons_wc_vp->v_rdev; 919 if (ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, kcred, 920 &wc_lh, sp->cons_li)) { 921 cmn_err(CE_PANIC, "cons_build_upper_layer: " 922 "unable to open wc device"); 923 return; 924 } 925 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev); 926 927 strioc.ic_cmd = WC_OPEN_FB; 928 strioc.ic_timout = INFTIM; 929 strioc.ic_len = strlen(sp->cons_fb_path) + 1; 930 strioc.ic_dp = sp->cons_fb_path; 931 932 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc, 933 FKIOCTL, kcred, &rval) == 0) 934 consmode = CONS_KFB; 935 else 936 cmn_err(CE_WARN, 937 "consconfig: terminal emulator failed to initialize"); 938 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred); 939 } 940 941 static void 942 consconfig_load_drivers(cons_state_t *sp) 943 { 944 /* 945 * Calling ddi_pathname_to_dev_t causes the drivers to be loaded. 946 * The attaching of the drivers will cause the creation of the 947 * keyboard and mouse minor nodes, which will in turn trigger the 948 * dacf framework to call the keyboard and mouse configuration 949 * tasks. See PSARC/1998/212 for more details about the dacf 950 * framework. 951 * 952 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1 953 * is kb/mouse. zs0 must be attached before zs1. The zs driver 954 * is written this way and the hardware may depend on this, too. 955 * It would be better to enforce this by attaching zs in sibling 956 * order with a driver property, such as ddi-attachall. 957 */ 958 if (sp->cons_stdin_path != NULL) 959 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path); 960 if (stdindev == NODEV) { 961 DPRINTF(DPRINT_L0, 962 "!fail to attach stdin: %s\n", sp->cons_stdin_path); 963 } 964 if (sp->cons_stdout_path != NULL) 965 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path); 966 if (sp->cons_keyboard_path != NULL) 967 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path); 968 if (sp->cons_mouse_path != NULL) 969 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path); 970 971 /* 972 * On x86, make sure the fb driver is loaded even if we don't use it 973 * for the console. This will ensure that we create a /dev/fb link 974 * which is required to start Xorg. 975 */ 976 #if defined(__x86) 977 if (sp->cons_fb_path != NULL) 978 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path); 979 #endif 980 981 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, " 982 "mousedev %lx\n", stdindev, stdoutdev, kbddev, mousedev); 983 } 984 985 static void 986 consconfig_init_framebuffer(cons_state_t *sp) 987 { 988 if (!sp->cons_stdout_is_fb) 989 return; 990 991 DPRINTF(DPRINT_L0, "stdout is framebuffer\n"); 992 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0); 993 994 /* 995 * Console output is a framebuffer. 996 * Find the framebuffer driver if we can, and make 997 * ourselves a shadow vnode to track it with. 998 */ 999 fbdev = stdoutdev; 1000 if (fbdev == NODEV) { 1001 DPRINTF(DPRINT_L3, 1002 "Can't find driver for console framebuffer\n"); 1003 } else { 1004 /* stdoutdev is valid, of fbvp should exist */ 1005 fbvp = i_consconfig_createvp(sp->cons_stdout_path); 1006 if (fbvp == NULL) { 1007 panic("consconfig_load_drivers: " 1008 "unable to find frame buffer device"); 1009 /*NOTREACHED*/ 1010 } 1011 ASSERT(fbvp->v_rdev == fbdev); 1012 1013 /* console device is never released */ 1014 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0); 1015 } 1016 pm_cfb_setup(sp->cons_stdout_path); 1017 } 1018 1019 /* 1020 * consconfig_prepare_dev: 1021 * Flush the stream, push "pushmod" onto the stream. 1022 * for keyboard, issue the KIOCTRANSABLE ioctl, and 1023 * possible enable abort. 1024 */ 1025 static void 1026 consconfig_prepare_dev( 1027 ldi_handle_t new_lh, 1028 const char *pushmod, 1029 int kbdtranslatable, 1030 int input_type, 1031 int dev_type) 1032 { 1033 int err, rval; 1034 1035 /* send a flush down the stream to the keyboard driver */ 1036 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW, 1037 FKIOCTL, kcred, &rval); 1038 1039 if (pushmod) { 1040 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod, 1041 FKIOCTL, kcred, &rval); 1042 if (err) { 1043 cmn_err(CE_WARN, "consconfig_prepare_dev: " 1044 "can't push streams module \"%s\", error %d", 1045 pushmod, err); 1046 } 1047 } 1048 1049 if (dev_type == CONS_MS) 1050 return; 1051 1052 ASSERT(dev_type == CONS_KBD); 1053 1054 err = ldi_ioctl(new_lh, KIOCTRANSABLE, 1055 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval); 1056 if (err) { 1057 cmn_err(CE_WARN, "consconfig_prepare_dev: " 1058 "KIOCTRANSABLE failed, error: %d", err); 1059 } 1060 1061 /* 1062 * During boot, dynamic_console_config() will call the 1063 * function to enable abort on the console. If the 1064 * keyboard is hotplugged after boot, check to see if 1065 * the keyboard is the console input. If it is 1066 * enable abort on it. 1067 */ 1068 if (input_type == CONSOLE_LOCAL) 1069 (void) consconfig_kbd_abort_enable(new_lh); 1070 } 1071 1072 /* 1073 * consconfig_relink_conskbd: 1074 * If new_lh is not NULL it should represent a driver with a 1075 * keyboard module pushed on top of it. The driver is then linked 1076 * underneath conskbd. the resulting stream will be 1077 * wc->conskbd->"new_lh driver". 1078 * 1079 * If new_lh is NULL, then an unlink operation is done on conskbd 1080 * that attempts to unlink the stream specified by *muxid. 1081 * the resulting stream will be wc->conskbd. 1082 */ 1083 static int 1084 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 1085 { 1086 int err, rval; 1087 int conskbd_relink = 0; 1088 1089 ASSERT(muxid != NULL); 1090 1091 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: " 1092 "conskbd_lh = %p, new_lh = %p, muxid = %x\n", 1093 sp->conskbd_lh, new_lh, *muxid); 1094 1095 /* 1096 * If conskbd is linked under wc then temporarily unlink it 1097 * from under wc so that the new_lh stream may be linked under 1098 * conskbd. This has to be done because streams are built bottom 1099 * up and linking a stream under conskbd isn't allowed when 1100 * conskbd is linked under wc. 1101 */ 1102 if (sp->conskbd_muxid != -1) { 1103 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n"); 1104 conskbd_relink = 1; 1105 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid); 1106 if (err) { 1107 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1108 "wc unlink failed, error %d", err); 1109 return (err); 1110 } 1111 } 1112 1113 if (new_lh != NULL) { 1114 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n"); 1115 1116 /* Link the stream represented by new_lh under conskbd */ 1117 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh, 1118 FKIOCTL, kcred, muxid); 1119 if (err != 0) { 1120 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1121 "conskbd link failed, error %d", err); 1122 goto relink_failed; 1123 } 1124 } else { 1125 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n"); 1126 1127 /* 1128 * This will cause the keyboard driver to be closed, 1129 * all modules to be popped, and the keyboard vnode released. 1130 */ 1131 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid, 1132 FKIOCTL, kcred, &rval); 1133 if (err != 0) { 1134 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1135 "conskbd unlink failed, error %d", err); 1136 goto relink_failed; 1137 } else { 1138 *muxid = -1; 1139 } 1140 1141 consconfig_check_phys_kbd(sp); 1142 } 1143 1144 if (!conskbd_relink) 1145 return (err); 1146 1147 /* 1148 * Link consbkd back under wc. 1149 * 1150 * The act of linking conskbd back under wc will cause wc 1151 * to query the lower lower layers about their polled I/O 1152 * routines. This time the request will succeed because there 1153 * is a physical keyboard linked under conskbd. 1154 */ 1155 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n"); 1156 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 1157 if (err) { 1158 cmn_err(CE_WARN, "consconfig_relink_conskbd: " 1159 "wc link failed, error %d", err); 1160 } 1161 return (err); 1162 1163 relink_failed: 1164 if (!conskbd_relink) 1165 return (err); 1166 1167 /* something went wrong, try to reconnect conskbd back under wc */ 1168 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n"); 1169 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid); 1170 return (err); 1171 } 1172 1173 /* 1174 * consconfig_relink_consms: 1175 * If new_lh is not NULL it should represent a driver with a 1176 * mouse module pushed on top of it. The driver is then linked 1177 * underneath consms. the resulting stream will be 1178 * consms->"new_lh driver". 1179 * 1180 * If new_lh is NULL, then an unlink operation is done on consms 1181 * that attempts to unlink the stream specified by *muxid. 1182 */ 1183 static int 1184 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid) 1185 { 1186 int err, rval; 1187 1188 DPRINTF(DPRINT_L0, "consconfig_relink_consms: " 1189 "consms_lh = %p, new_lh = %p, muxid = %x\n", 1190 (void *)sp->consms_lh, (void *)new_lh, *muxid); 1191 1192 if (new_lh != NULL) { 1193 DPRINTF(DPRINT_L0, "linking mouse under consms\n"); 1194 1195 /* Link ms/usbms stream underneath consms multiplexor. */ 1196 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh, 1197 FKIOCTL, kcred, muxid); 1198 if (err != 0) { 1199 cmn_err(CE_WARN, "consconfig_relink_consms: " 1200 "mouse link failed, error %d", err); 1201 } 1202 } else { 1203 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n"); 1204 1205 /* Tear down the mouse stream */ 1206 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid, 1207 FKIOCTL, kcred, &rval); 1208 if (err != 0) { 1209 cmn_err(CE_WARN, "consconfig_relink_consms: " 1210 "mouse unlink failed, error %d", err); 1211 } else { 1212 *muxid = -1; 1213 } 1214 } 1215 return (err); 1216 } 1217 1218 static int 1219 cons_get_input_type(cons_state_t *sp) 1220 { 1221 int type; 1222 1223 /* 1224 * Now that we know what all the devices are, we can figure out 1225 * what kind of console we have. 1226 */ 1227 if (sp->cons_stdin_is_kbd) { 1228 /* Stdin is from the system keyboard */ 1229 type = CONSOLE_LOCAL; 1230 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) { 1231 /* 1232 * A reliable indicator that we are doing a remote console 1233 * is that stdin and stdout are the same. 1234 * This is probably a tip line. 1235 */ 1236 type = CONSOLE_TIP; 1237 } else { 1238 type = CONSOLE_SERIAL_KEYBOARD; 1239 } 1240 1241 return (type); 1242 } 1243 1244 static void 1245 consconfig_init_input(cons_state_t *sp) 1246 { 1247 ldi_handle_t new_lh; 1248 dev_t cons_final_dev; 1249 int err; 1250 1251 cons_final_dev = NODEV; 1252 1253 switch (sp->cons_input_type) { 1254 case CONSOLE_LOCAL: 1255 DPRINTF(DPRINT_L0, "stdin is keyboard\n"); 1256 1257 /* 1258 * The machine is allowed to boot without a keyboard. 1259 * If a user attaches a keyboard later, the keyboard 1260 * will be hooked into the console stream with the dacf 1261 * functions. 1262 * 1263 * The only drivers that look at kbbdev are the 1264 * serial drivers, which looks at kbdev to see if 1265 * they should allow abort on a break. In the absence 1266 * of keyboard, the serial drivers won't be attached 1267 * for any keyboard instance. 1268 */ 1269 if (kbddev == NODEV) { 1270 /* 1271 * If there is a problem with the keyboard 1272 * during the driver loading, then the polled 1273 * input won't get setup properly if polled 1274 * input is needed. This means that if the 1275 * keyboard is hotplugged, the keyboard would 1276 * work normally, but going down to the 1277 * debugger would not work if polled input is 1278 * required. This field is set here. The next 1279 * time a keyboard is plugged in, the field is 1280 * checked in order to give the next keyboard a 1281 * chance at being registered for console 1282 * input. 1283 * 1284 * Although this code will rarely be needed, 1285 * USB keyboards can be flaky, so this code 1286 * will be useful on the occasion that the 1287 * keyboard doesn't enumerate when the drivers 1288 * are loaded. 1289 */ 1290 DPRINTF(DPRINT_L2, "Error with console keyboard\n"); 1291 sp->cons_keyboard_problem = B_TRUE; 1292 } 1293 stdindev = kbddev; 1294 cons_final_dev = sp->cons_wc_vp->v_rdev; 1295 break; 1296 1297 case CONSOLE_TIP: 1298 DPRINTF(DPRINT_L0, "console input is tty (%s)\n", 1299 sp->cons_stdin_path); 1300 1301 /* 1302 * Console device drivers must be able to output 1303 * after being closed. 1304 */ 1305 rconsvp = i_consconfig_createvp(sp->cons_stdin_path); 1306 if (rconsvp == NULL) { 1307 panic("consconfig_init_input: " 1308 "unable to find stdin device (%s)", 1309 sp->cons_stdin_path); 1310 /*NOTREACHED*/ 1311 } 1312 rconsdev = rconsvp->v_rdev; 1313 1314 ASSERT(rconsdev == stdindev); 1315 1316 cons_final_dev = rconsdev; 1317 break; 1318 1319 case CONSOLE_SERIAL_KEYBOARD: 1320 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n"); 1321 1322 /* 1323 * Non-keyboard input device, but not rconsdev. 1324 * This is known as the "serial keyboard" case - the 1325 * most likely use is someone has a keyboard attached 1326 * to a serial port (tip) and still has output on a 1327 * framebuffer. 1328 * 1329 * In this case, the serial driver must be linked 1330 * directly beneath wc. Since conskbd was linked 1331 * underneath wc above, first we unlink conskbd. 1332 */ 1333 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid); 1334 sp->conskbd_muxid = -1; 1335 1336 /* 1337 * Open the serial keyboard, configure it, 1338 * and link it underneath wc. 1339 */ 1340 err = ldi_open_by_name(sp->cons_stdin_path, 1341 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li); 1342 if (err == 0) { 1343 struct termios termios; 1344 int rval; 1345 int stdin_muxid; 1346 1347 consconfig_prepare_dev(new_lh, 1348 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD); 1349 1350 /* Re-set baud rate */ 1351 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios, 1352 FKIOCTL, kcred, &rval); 1353 1354 /* Set baud rate */ 1355 if (consconfig_setmodes(stdindev, &termios) == 0) { 1356 err = ldi_ioctl(new_lh, 1357 TCSETSF, (intptr_t)&termios, 1358 FKIOCTL, kcred, &rval); 1359 if (err) { 1360 cmn_err(CE_WARN, 1361 "consconfig_init_input: " 1362 "TCSETSF failed, error %d", err); 1363 } 1364 } 1365 1366 /* 1367 * Now link the serial keyboard direcly under wc 1368 * we don't save the returned muxid because we 1369 * don't support changing/hotplugging the console 1370 * keyboard when it is a serial keyboard. 1371 */ 1372 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid); 1373 1374 (void) ldi_close(new_lh, FREAD|FWRITE, kcred); 1375 } 1376 1377 cons_final_dev = sp->cons_wc_vp->v_rdev; 1378 break; 1379 1380 default: 1381 panic("consconfig_init_input: " 1382 "unsupported console input/output combination"); 1383 /*NOTREACHED*/ 1384 } 1385 1386 /* 1387 * Use the redirection device/workstation console pair as the "real" 1388 * console if the latter hasn't already been set. 1389 * The workstation console driver needs to see rwsconsvp, but 1390 * all other access should be through the redirecting driver. 1391 */ 1392 if (rconsvp == NULL) { 1393 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n"); 1394 rconsvp = wsconsvp; 1395 rconsdev = wsconsvp->v_rdev; 1396 } 1397 1398 ASSERT(cons_final_dev != NODEV); 1399 1400 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, 1401 kcred, &new_lh, sp->cons_li); 1402 if (err) { 1403 panic("consconfig_init_input: " 1404 "unable to open console device"); 1405 /*NOTREACHED*/ 1406 } 1407 1408 /* Enable abort on the console */ 1409 (void) consconfig_kbd_abort_enable(new_lh); 1410 1411 /* Now we must close it to make console logins happy */ 1412 (void) ldi_close(new_lh, FREAD|FWRITE, kcred); 1413 1414 /* Set up polled input if it is supported by the console device */ 1415 if (plat_use_polled_debug()) { 1416 /* 1417 * In the debug case, register the keyboard polled entry 1418 * points, but don't throw the switch in the debugger. This 1419 * allows the polled entry points to be checked by hand 1420 */ 1421 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev); 1422 } else { 1423 consconfig_setup_polledio(sp, cons_final_dev); 1424 } 1425 1426 kadb_uses_kernel(); 1427 } 1428 1429 /* 1430 * This function kicks off the console configuration. 1431 * Configure keyboard and mouse. Main entry here. 1432 */ 1433 void 1434 dynamic_console_config(void) 1435 { 1436 /* initialize space.c globals */ 1437 stdindev = NODEV; 1438 mousedev = NODEV; 1439 kbddev = NODEV; 1440 fbdev = NODEV; 1441 fbvp = NULL; 1442 fbdip = NULL; 1443 wsconsvp = NULL; 1444 rwsconsvp = NULL; 1445 rwsconsdev = NODEV; 1446 rconsvp = NULL; 1447 rconsdev = NODEV; 1448 1449 /* Initialize cons_state_t structure and console device paths */ 1450 consconfig_sp = consconfig_state_init(); 1451 ASSERT(consconfig_sp); 1452 1453 /* Build upper layer of console stream */ 1454 cons_build_upper_layer(consconfig_sp); 1455 1456 /* 1457 * Load keyboard/mouse drivers. The dacf routines will 1458 * plumb the devices into the console stream 1459 * 1460 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard 1461 * and mouse drivers are linked into their respective console 1462 * streams if the pathnames are valid. 1463 */ 1464 consconfig_load_drivers(consconfig_sp); 1465 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp); 1466 1467 /* 1468 * This is legacy special case code for the "cool" virtual console 1469 * for the Starfire project. Starfire has a dummy "ssp-serial" 1470 * node in the OBP device tree and cvc is a pseudo driver. 1471 */ 1472 if (consconfig_sp->cons_stdout_path != NULL && stdindev == NODEV && 1473 strstr(consconfig_sp->cons_stdout_path, "ssp-serial")) { 1474 /* 1475 * Setup the virtual console driver for Starfire 1476 * Note that console I/O will still go through prom for now 1477 * (notice we don't open the driver here). The cvc driver 1478 * will be activated when /dev/console is opened by init. 1479 * During that time, a cvcd daemon will be started that 1480 * will open the cvcredirection driver to facilitate 1481 * the redirection of console I/O from cvc to cvcd. 1482 */ 1483 rconsvp = i_consconfig_createvp(CVC_PATH); 1484 if (rconsvp == NULL) 1485 return; 1486 rconsdev = rconsvp->v_rdev; 1487 return; 1488 } 1489 1490 rwsconsvp = consconfig_sp->cons_wc_vp; 1491 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev; 1492 1493 1494 /* initialize framebuffer, console input, and redirection device */ 1495 consconfig_init_framebuffer(consconfig_sp); 1496 consconfig_init_input(consconfig_sp); 1497 1498 DPRINTF(DPRINT_L0, 1499 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n", 1500 mousedev, kbddev, fbdev, rconsdev); 1501 1502 flush_deferred_console_buf(); 1503 } 1504 1505 1506 /* 1507 * Start of DACF interfaces 1508 */ 1509 1510 /* 1511 * Do the real job for keyboard/mouse auto-configuration. 1512 */ 1513 static int 1514 do_config(cons_state_t *sp, cons_prop_t *prop) 1515 { 1516 ldi_handle_t lh; 1517 dev_t dev; 1518 int error; 1519 1520 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS)); 1521 1522 dev = prop->cp_dev; 1523 error = ldi_open_by_dev(&dev, OTYP_CHR, 1524 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li); 1525 if (error) { 1526 return (DACF_FAILURE); 1527 } 1528 ASSERT(dev == prop->cp_dev); /* clone not supported */ 1529 1530 /* 1531 * Prepare the new keyboard/mouse driver 1532 * to be linked under conskbd/consms. 1533 */ 1534 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN, 1535 sp->cons_input_type, prop->cp_type); 1536 1537 if (prop->cp_type == CONS_KBD) { 1538 /* 1539 * Tell the physical keyboard driver to send 1540 * the abort sequences up to the virtual keyboard 1541 * driver so that STOP and A (or F1 and A) 1542 * can be applied to different keyboards. 1543 */ 1544 (void) consconfig_kbd_abort_disable(lh); 1545 1546 /* Link the stream underneath conskbd */ 1547 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid); 1548 } else { 1549 /* Link the stream underneath consms */ 1550 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid); 1551 } 1552 1553 /* 1554 * At this point, the stream is: 1555 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"] 1556 * for mouse: consms->["module_name"->]"mouse_avp driver" 1557 */ 1558 1559 /* Close the driver stream, it will stay linked under conskbd */ 1560 (void) ldi_close(lh, FREAD|FWRITE, kcred); 1561 1562 if (error) { 1563 return (DACF_FAILURE); 1564 } 1565 1566 return (DACF_SUCCESS); 1567 } 1568 1569 static int 1570 do_unconfig(cons_state_t *sp, cons_prop_t *prop) 1571 { 1572 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS)); 1573 1574 if (prop->cp_type == CONS_KBD) 1575 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid)); 1576 else 1577 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid)); 1578 } 1579 1580 static int 1581 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type) 1582 { 1583 major_t major; 1584 minor_t minor; 1585 dev_t dev; 1586 dev_info_t *dip; 1587 cons_state_t *sp; 1588 cons_prop_t *prop; 1589 const char *pushmod; 1590 1591 /* 1592 * Retrieve the state information 1593 * Some platforms may use the old-style "consconfig" to configure 1594 * console stream modules but may also support devices that happen 1595 * to match a rule in /etc/dacf.conf. This will cause a problem 1596 * since the console state structure will not be initialized. 1597 * In that case, these entry points should silently fail and 1598 * permit console to be plumbed later in boot. 1599 */ 1600 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1601 return (DACF_FAILURE); 1602 1603 dip = dacf_devinfo_node(minor_hdl); 1604 major = ddi_driver_major(dip); 1605 ASSERT(major != DDI_MAJOR_T_NONE); 1606 minor = dacf_minor_number(minor_hdl); 1607 dev = makedevice(major, minor); 1608 ASSERT(dev != NODEV); 1609 1610 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n", 1611 (char *)dacf_driver_name(minor_hdl), dev, major); 1612 1613 /* Access to the global variables is synchronized */ 1614 mutex_enter(&sp->cons_lock); 1615 1616 /* 1617 * Check if the keyboard/mouse has already configured. 1618 */ 1619 if (consconfig_find_dev(sp, dev) != NULL) { 1620 mutex_exit(&sp->cons_lock); 1621 return (DACF_SUCCESS); 1622 } 1623 1624 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP); 1625 1626 /* Config the new keyboard/mouse device */ 1627 prop->cp_dev = dev; 1628 1629 pushmod = dacf_get_arg(arg_hdl, "pushmod"); 1630 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP); 1631 1632 prop->cp_type = type; 1633 if (do_config(sp, prop) != DACF_SUCCESS) { 1634 /* 1635 * The keyboard/mouse node failed to open. 1636 * Set the major and minor numbers to 0 so 1637 * kb_unconfig/ms_unconfig won't unconfigure 1638 * this node if it is detached. 1639 */ 1640 mutex_exit(&sp->cons_lock); 1641 consconfig_free_prop(prop); 1642 return (DACF_FAILURE); 1643 } 1644 1645 consconfig_add_dev(sp, prop); 1646 1647 /* 1648 * See if there was a problem with the console keyboard during boot. 1649 * If so, try to register polled input for this keyboard. 1650 */ 1651 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) { 1652 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev); 1653 sp->cons_keyboard_problem = B_FALSE; 1654 } 1655 1656 /* Prevent autodetach due to memory pressure */ 1657 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1); 1658 1659 mutex_exit(&sp->cons_lock); 1660 1661 return (DACF_SUCCESS); 1662 } 1663 1664 static int 1665 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl) 1666 { 1667 _NOTE(ARGUNUSED(arg_hdl)) 1668 1669 major_t major; 1670 minor_t minor; 1671 dev_t dev; 1672 dev_info_t *dip; 1673 cons_state_t *sp; 1674 cons_prop_t *prop; 1675 1676 /* 1677 * Retrieve the state information 1678 * So if there isn't a state available, then this entry point just 1679 * returns. See note in kb_config(). 1680 */ 1681 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1682 return (DACF_SUCCESS); 1683 1684 dip = dacf_devinfo_node(minor_hdl); 1685 major = ddi_driver_major(dip); 1686 ASSERT(major != DDI_MAJOR_T_NONE); 1687 minor = dacf_minor_number(minor_hdl); 1688 dev = makedevice(major, minor); 1689 ASSERT(dev != NODEV); 1690 1691 /* 1692 * Check if the keyboard/mouse that is being detached 1693 * is the console keyboard/mouse or not. 1694 */ 1695 mutex_enter(&sp->cons_lock); 1696 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1697 mutex_exit(&sp->cons_lock); 1698 return (DACF_SUCCESS); 1699 } 1700 1701 /* 1702 * This dev may be opened physically and then hotplugged out. 1703 */ 1704 if (prop->cp_muxid != -1) { 1705 (void) do_unconfig(sp, prop); 1706 consconfig_rem_dev(sp, dev); 1707 } 1708 1709 mutex_exit(&sp->cons_lock); 1710 1711 return (DACF_SUCCESS); 1712 } 1713 1714 /* 1715 * This is the post-attach / pre-detach action function for the keyboard 1716 * and mouse. This function is associated with a node type in /etc/dacf.conf. 1717 */ 1718 static int 1719 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1720 { 1721 _NOTE(ARGUNUSED(flags)) 1722 1723 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD)); 1724 } 1725 1726 static int 1727 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1728 { 1729 _NOTE(ARGUNUSED(flags)) 1730 1731 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS)); 1732 } 1733 1734 static int 1735 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1736 { 1737 _NOTE(ARGUNUSED(flags)) 1738 1739 return (kb_ms_unconfig(minor_hdl, arg_hdl)); 1740 } 1741 1742 static int 1743 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags) 1744 { 1745 _NOTE(ARGUNUSED(flags)) 1746 1747 return (kb_ms_unconfig(minor_hdl, arg_hdl)); 1748 } 1749 1750 /* 1751 * consconfig_link and consconfig_unlink are provided to support 1752 * direct access to physical keyboard/mouse underlying conskbd/ 1753 * consms. 1754 * When the keyboard/mouse is opened physically via its device 1755 * file, it will be unlinked from the virtual one, and when it 1756 * is closed physically, it will be linked back under the virtual 1757 * one. 1758 */ 1759 void 1760 consconfig_link(major_t major, minor_t minor) 1761 { 1762 char buf[MAXPATHLEN]; 1763 dev_t dev; 1764 cons_state_t *sp; 1765 cons_prop_t *prop; 1766 1767 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1768 return; 1769 1770 dev = makedevice(major, minor); 1771 ASSERT(dev != NODEV); 1772 1773 mutex_enter(&sp->cons_lock); 1774 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1775 mutex_exit(&sp->cons_lock); 1776 return; 1777 } 1778 1779 if (do_config(sp, prop) != DACF_SUCCESS) { 1780 (void) ddi_dev_pathname(dev, 0, buf); 1781 if (prop->cp_type == CONS_KBD) 1782 cmn_err(CE_WARN, "Failed to relink the keyboard " 1783 "(%s) underneath virtual keyboard", buf); 1784 else 1785 cmn_err(CE_WARN, "Failed to relink the mouse " 1786 "(%s) underneath virtual mouse", buf); 1787 consconfig_rem_dev(sp, dev); 1788 } 1789 1790 mutex_exit(&sp->cons_lock); 1791 } 1792 1793 1794 int 1795 consconfig_unlink(major_t major, minor_t minor) 1796 { 1797 dev_t dev; 1798 cons_state_t *sp; 1799 cons_prop_t *prop; 1800 int error; 1801 1802 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 1803 return (DACF_SUCCESS); 1804 1805 dev = makedevice(major, minor); 1806 ASSERT(dev != NODEV); 1807 1808 mutex_enter(&sp->cons_lock); 1809 if ((prop = consconfig_find_dev(sp, dev)) == NULL) { 1810 mutex_exit(&sp->cons_lock); 1811 return (DACF_FAILURE); 1812 } 1813 1814 error = do_unconfig(sp, prop); 1815 1816 /* 1817 * Keep this dev on the list, for this dev is still online. 1818 */ 1819 mutex_exit(&sp->cons_lock); 1820 1821 return (error); 1822 } 1823 1824 /* 1825 * Routine to set baud rate, bits-per-char, parity and stop bits 1826 * on the console line when necessary. 1827 */ 1828 static int 1829 consconfig_setmodes(dev_t dev, struct termios *termiosp) 1830 { 1831 char buf[MAXPATHLEN]; 1832 int len = MAXPATHLEN; 1833 char name[16]; 1834 int ppos, i; 1835 char *path; 1836 dev_t tdev; 1837 1838 /* 1839 * First, search for a devalias which matches this dev_t. 1840 * Try all of ttya through ttyz until no such alias 1841 */ 1842 (void) strcpy(name, "ttya"); 1843 for (i = 0; i < ('z'-'a'); i++) { 1844 name[3] = 'a' + i; /* increment device name */ 1845 path = get_alias(name, buf); 1846 if (path == NULL) 1847 return (1); 1848 1849 tdev = ddi_pathname_to_dev_t(path); 1850 if (tdev == dev) 1851 break; /* Exit loop if found */ 1852 } 1853 1854 if (i >= ('z'-'a')) 1855 return (1); /* If we didn't find it, return */ 1856 1857 /* 1858 * Now that we know which "tty" this corresponds to, retrieve 1859 * the "ttya-mode" options property, which tells us how to configure 1860 * the line. 1861 */ 1862 (void) strcpy(name, "ttya-mode"); /* name of option we want */ 1863 name[3] = 'a' + i; /* Adjust to correct line */ 1864 1865 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name, 1866 buf, &len) != DDI_PROP_SUCCESS) 1867 return (1); /* if no such option, just return */ 1868 1869 /* 1870 * The IEEE 1275 standard specifies that /aliases string property 1871 * values should be null-terminated. Unfortunately the reality 1872 * is that most aren't and the OBP can't easily be modified to 1873 * add null termination to these strings. So we'll add the 1874 * null termination here. If the string already contains a 1875 * null termination character then that's ok too because we'll 1876 * just be adding a second one. 1877 */ 1878 buf[len] = '\0'; 1879 1880 /* Clear out options we will be setting */ 1881 termiosp->c_cflag &= 1882 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB); 1883 1884 /* Clear options which potentially conflict with new settings */ 1885 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT); 1886 1887 /* 1888 * Now, parse the string. Wish I could use sscanf(). 1889 * Format 9600,8,n,1,- 1890 * baud rate, bits-per-char, parity, stop-bits, ignored 1891 */ 1892 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */ 1893 if ((buf[ppos] == 0) || (buf[ppos] == ',')) 1894 break; 1895 } 1896 1897 if (buf[ppos] != ',') { 1898 cmn_err(CE_WARN, "consconfig_setmodes: " 1899 "invalid mode string %s", buf); 1900 return (1); 1901 } 1902 1903 for (i = 0; i < MAX_SPEEDS; i++) { 1904 if (strncmp(buf, speedtab[i].name, ppos) == 0) 1905 break; 1906 } 1907 1908 if (i >= MAX_SPEEDS) { 1909 cmn_err(CE_WARN, 1910 "consconfig_setmodes: unrecognized speed in %s", buf); 1911 return (1); 1912 } 1913 1914 /* Found the baud rate, set it */ 1915 termiosp->c_cflag |= speedtab[i].code & CBAUD; 1916 if (speedtab[i].code > 16) /* cfsetospeed! */ 1917 termiosp->c_cflag |= CBAUDEXT; 1918 1919 /* Set bits per character */ 1920 switch (buf[ppos+1]) { 1921 case '8': 1922 termiosp->c_cflag |= CS8; 1923 break; 1924 case '7': 1925 termiosp->c_cflag |= CS7; 1926 break; 1927 default: 1928 cmn_err(CE_WARN, 1929 "consconfig_setmodes: illegal bits-per-char %s", buf); 1930 return (1); 1931 } 1932 1933 /* Set parity */ 1934 switch (buf[ppos+3]) { 1935 case 'o': 1936 termiosp->c_cflag |= PARENB | PARODD; 1937 break; 1938 case 'e': 1939 termiosp->c_cflag |= PARENB; /* enabled, not odd */ 1940 break; 1941 case 'n': 1942 break; /* not enabled. */ 1943 default: 1944 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf); 1945 return (1); 1946 } 1947 1948 /* Set stop bits */ 1949 switch (buf[ppos+5]) { 1950 case '1': 1951 break; /* No extra stop bit */ 1952 case '2': 1953 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */ 1954 break; 1955 default: 1956 cmn_err(CE_WARN, "consconfig_setmodes: " 1957 "illegal stop bits %s", buf); 1958 return (1); 1959 } 1960 1961 return (0); 1962 } 1963 1964 /* 1965 * Check to see if underlying keyboard devices are still online, 1966 * if any one is offline now, unlink it. 1967 */ 1968 static void 1969 consconfig_check_phys_kbd(cons_state_t *sp) 1970 { 1971 ldi_handle_t kb_lh; 1972 cons_prop_t *prop; 1973 int error; 1974 int rval; 1975 1976 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) { 1977 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1)) 1978 continue; 1979 1980 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR, 1981 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li); 1982 1983 if (error) { 1984 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK, 1985 prop->cp_muxid, FKIOCTL, kcred, &rval); 1986 prop->cp_dev = NODEV; 1987 } else { 1988 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred); 1989 } 1990 } 1991 1992 /* 1993 * Remove all disconnected keyboards, 1994 * whose dev is turned into NODEV above. 1995 */ 1996 consconfig_rem_dev(sp, NODEV); 1997 } 1998 1999 /* 2000 * Remove devices according to dev, which may be NODEV 2001 */ 2002 static void 2003 consconfig_rem_dev(cons_state_t *sp, dev_t dev) 2004 { 2005 cons_prop_t *prop; 2006 cons_prop_t *prev_prop; 2007 cons_prop_t *tmp_prop; 2008 cons_prop_t *head_prop; 2009 2010 head_prop = NULL; 2011 prev_prop = NULL; 2012 for (prop = sp->cons_km_prop; prop != NULL; ) { 2013 if (prop->cp_dev == dev) { 2014 tmp_prop = prop->cp_next; 2015 consconfig_free_prop(prop); 2016 prop = tmp_prop; 2017 if (prev_prop) 2018 prev_prop->cp_next = prop; 2019 } else { 2020 if (head_prop == NULL) 2021 head_prop = prop; 2022 prev_prop = prop; 2023 prop = prop->cp_next; 2024 } 2025 } 2026 sp->cons_km_prop = head_prop; 2027 } 2028 2029 /* 2030 * Add a dev according to prop 2031 */ 2032 static void 2033 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop) 2034 { 2035 prop->cp_next = sp->cons_km_prop; 2036 sp->cons_km_prop = prop; 2037 } 2038 2039 /* 2040 * Find a device from our list according to dev 2041 */ 2042 static cons_prop_t * 2043 consconfig_find_dev(cons_state_t *sp, dev_t dev) 2044 { 2045 cons_prop_t *prop; 2046 2047 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) { 2048 if (prop->cp_dev == dev) 2049 break; 2050 } 2051 2052 return (prop); 2053 } 2054 2055 /* 2056 * Free a cons prop associated with a keyboard or mouse 2057 */ 2058 static void 2059 consconfig_free_prop(cons_prop_t *prop) 2060 { 2061 if (prop->cp_pushmod) 2062 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1); 2063 kmem_free(prop, sizeof (cons_prop_t)); 2064 } 2065 2066 /* 2067 * The early boot code can't print to a usb serial device or the 2068 * graphical boot screen. 2069 * 2070 * The early boot messages are saved in a buffer at the address indicated 2071 * by "deferred-console-buf" This function flushes the message to the 2072 * current console now that it is set up. 2073 */ 2074 static void 2075 flush_deferred_console_buf(void) 2076 { 2077 int rval; 2078 vnode_t *vp; 2079 uint_t defcons_buf; 2080 char *kc, *bc, *defcons_kern_buf; 2081 2082 /* defcons_buf is in low memory, so an int works here */ 2083 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(), 2084 DDI_PROP_DONTPASS, "deferred-console-buf", 0); 2085 2086 if (defcons_buf == 0) 2087 return; 2088 2089 /* 2090 * After consconfig() and before userland opens /dev/sysmsg, 2091 * console I/O is goes to polled I/O entry points. 2092 * 2093 * If usb-serial doesn't implement polled I/O, we need 2094 * to open /dev/console now to get kernel console I/O to work. 2095 * We also push ttcompat and ldterm explicitly to get the 2096 * correct output format (autopush isn't set up yet). We 2097 * ignore push errors because they are non-fatal. 2098 * Note that opening /dev/console causes rconsvp to be 2099 * opened as well. 2100 */ 2101 if (cons_polledio == NULL) { 2102 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY, 2103 0, &vp, 0, 0) != 0) 2104 return; 2105 2106 if (rconsvp) { 2107 (void) strioctl(rconsvp, __I_PUSH_NOCTTY, 2108 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval); 2109 (void) strioctl(rconsvp, __I_PUSH_NOCTTY, 2110 (intptr_t)"ttcompat", FKIOCTL, K_TO_K, 2111 kcred, &rval); 2112 } 2113 } 2114 2115 /* 2116 * Copy message to a kernel buffer. Various kernel routines 2117 * expect buffer to be above kernelbase 2118 */ 2119 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP); 2120 bc = (char *)(uintptr_t)defcons_buf; 2121 while (*kc++ = *bc++) 2122 ; 2123 console_printf("%s", defcons_kern_buf); 2124 2125 kmem_free(defcons_kern_buf, MMU_PAGESIZE); 2126 } 2127 2128 boolean_t 2129 consconfig_console_is_tipline(void) 2130 { 2131 cons_state_t *sp; 2132 2133 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL) 2134 return (B_FALSE); 2135 2136 if (sp->cons_input_type == CONSOLE_TIP) 2137 return (B_TRUE); 2138 2139 return (B_FALSE); 2140 } 2141