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 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright 2019 Peter Tribble.
29 */
30
31 /*
32 * This module performs two functions. First, it kicks off the driver loading
33 * of the console devices during boot in dynamic_console_config().
34 * The loading of the drivers for the console devices triggers the
35 * additional device autoconfiguration to link the drivers into the keyboard
36 * and mouse console streams.
37 *
38 * The second function of this module is to provide the dacf functions
39 * to be called after a driver has attached and before it detaches. For
40 * example, a driver associated with the keyboard will have kb_config called
41 * after the driver attaches and kb_unconfig before it detaches. Similar
42 * configuration actions are performed on behalf of minor nodes representing
43 * mice. The configuration functions for the attach case take a module
44 * name as a parameter. The module is pushed on top of the driver during
45 * the configuration.
46 *
47 * Although the dacf framework is used to configure all keyboards and mice,
48 * its primary function is to allow keyboard and mouse hotplugging.
49 *
50 * This module supports multiple keyboards and mice at the same time.
51 *
52 * From the kernel perspective, there are roughly three different possible
53 * console configurations. Across these three configurations, the following
54 * elements are constant:
55 * wsconsvp = IWSCN_PATH
56 * rwsconsvp = WC_PATH
57 * consms -> msdev
58 *
59 * The "->" syntax indicates that the streams device on the right is
60 * linked under the streams device on the left.
61 *
62 * The following lists how the system is configured for different setups:
63 *
64 * stdin is a local keyboard. use stdin and stdout as the console.
65 * sp->cons_input_type = CONSOLE_LOCAL
66 * rconsvp = IWSCN_PATH
67 * wc -> conskbd -> kbddev
68 *
69 * stdin is not a keyboard and stdin is the same as stdout.
70 * assume we running on a tip line and use stdin/stdout as the console.
71 * sp->cons_input_type = CONSOLE_TIP
72 * rconsvp = (stdindev/stdoutdev)
73 * wc -> conskbd -> kbddev
74 *
75 * stdin is not a keyboard device and it's not the same as stdout.
76 * assume we have a serial keyboard hooked up and use it along with
77 * stdout as the console.
78 * sp->cons_input_type = CONSOLE_SERIAL_KEYBOARD
79 * rconsvp = IWSCN_PATH
80 * wc -> stdindev
81 * conskbd -> kbddev
82 *
83 * CAVEAT:
84 * The above is all true except for one possible Intel configuration.
85 * If stdin is set to a local keyboard but stdout is set to something
86 * other than the local display (a tip port for example) stdout will
87 * still go to the local display. This is an artifact of the console
88 * implementation on intel.
89 */
90
91 #include <sys/types.h>
92 #include <sys/param.h>
93 #include <sys/cmn_err.h>
94 #include <sys/user.h>
95 #include <sys/vfs.h>
96 #include <sys/vnode.h>
97 #include <sys/pathname.h>
98 #include <sys/systm.h>
99 #include <sys/file.h>
100 #include <sys/stropts.h>
101 #include <sys/stream.h>
102 #include <sys/strsubr.h>
103
104 #include <sys/consdev.h>
105 #include <sys/console.h>
106 #include <sys/wscons.h>
107 #include <sys/kbio.h>
108 #include <sys/debug.h>
109 #include <sys/reboot.h>
110 #include <sys/termios.h>
111
112 #include <sys/ddi.h>
113 #include <sys/sunddi.h>
114 #include <sys/sunldi.h>
115 #include <sys/sunndi.h>
116 #include <sys/ndi_impldefs.h>
117 #include <sys/modctl.h>
118 #include <sys/ddi_impldefs.h>
119 #include <sys/ddi_implfuncs.h>
120 #include <sys/promif.h>
121 #include <sys/fs/snode.h>
122
123 #include <sys/errno.h>
124 #include <sys/devops.h>
125 #include <sys/note.h>
126
127 #include <sys/tem_impl.h>
128 #include <sys/polled_io.h>
129 #include <sys/kmem.h>
130 #include <sys/dacf.h>
131 #include <sys/consconfig_dacf.h>
132 #include <sys/consplat.h>
133 #include <sys/log.h>
134 #include <sys/disp.h>
135
136 /*
137 * External global variables
138 */
139 extern vnode_t *rconsvp;
140 extern dev_t rwsconsdev;
141
142 /*
143 * External functions
144 */
145 extern uintptr_t space_fetch(char *key);
146 extern int space_store(char *key, uintptr_t ptr);
147
148 /*
149 * Tasks
150 */
151 static int kb_config(dacf_infohdl_t, dacf_arghdl_t, int);
152 static int kb_unconfig(dacf_infohdl_t, dacf_arghdl_t, int);
153 static int ms_config(dacf_infohdl_t, dacf_arghdl_t, int);
154 static int ms_unconfig(dacf_infohdl_t, dacf_arghdl_t, int);
155
156 /*
157 * Internal functions
158 */
159 static int consconfig_setmodes(dev_t dev, struct termios *termiosp);
160 static void consconfig_check_phys_kbd(cons_state_t *);
161 static void consconfig_rem_dev(cons_state_t *, dev_t);
162 static void consconfig_add_dev(cons_state_t *, cons_prop_t *);
163 static cons_prop_t *consconfig_find_dev(cons_state_t *, dev_t);
164 static void consconfig_free_prop(cons_prop_t *prop);
165 static void flush_deferred_console_buf(void);
166
167
168 /*
169 * On supported configurations, the firmware defines the keyboard and mouse
170 * paths. However, during USB development, it is useful to be able to use
171 * the USB keyboard and mouse on machines without full USB firmware support.
172 * These variables may be set in /etc/system according to a machine's
173 * USB configuration. This module will override the firmware's values
174 * with these.
175 *
176 * NOTE:
177 * The master copies of these variables in the misc/consconfig module.
178 * The reason for this is historic. In versions of solaris up to and
179 * including solaris 9 the conscole configuration code was split into a
180 * seperate sparc and intel version. These variables were defined
181 * in misc/consconfig on sparc and dacf/consconfig_dacf on intel.
182 *
183 * Unfortunatly the sparc variables were well documented.
184 * So to aviod breaking either sparc or intel we'll declare the variables
185 * in both modules. This will allow any /etc/system entries that
186 * users may have to continue working.
187 *
188 * The variables in misc/consconfig will take precedence over the variables
189 * found in this file. Since we eventually want to remove the variables
190 * local to this this file, if the user set them we'll emmit an error
191 * message telling them they need to set the variables in misc/consconfig
192 * instead.
193 */
194 static char *usb_kb_path = NULL;
195 static char *usb_ms_path = NULL;
196
197 /*
198 * Access functions in the misc/consconfig module used to retrieve the
199 * values of it local usb_kb_path and usb_ms_path variables
200 */
201 extern char *consconfig_get_usb_kb_path();
202 extern char *consconfig_get_usb_ms_path();
203
204 /*
205 * Local variables used to store the value of the usb_kb_path and
206 * usb_ms_path variables found in misc/consconfig
207 */
208 static char *consconfig_usb_kb_path = NULL;
209 static char *consconfig_usb_ms_path = NULL;
210
211 /*
212 * Internal variables
213 */
214 static dev_t stdoutdev;
215 static cons_state_t *consconfig_sp;
216
217 /*
218 * consconfig_errlevel: debug verbosity; smaller numbers are more
219 * verbose.
220 */
221 int consconfig_errlevel = DPRINT_L3;
222
223 /*
224 * Baud rate table
225 */
226 static struct speed {
227 char *name;
228 int code;
229 } speedtab[] = {
230 {"0", B0}, {"50", B50}, {"75", B75},
231 {"110", B110}, {"134", B134}, {"150", B150},
232 {"200", B200}, {"300", B300}, {"600", B600},
233 {"1200", B1200}, {"1800", B1800}, {"2400", B2400},
234 {"4800", B4800}, {"9600", B9600}, {"19200", B19200},
235 {"38400", B38400}, {"57600", B57600}, {"76800", B76800},
236 {"115200", B115200}, {"153600", B153600}, {"230400", B230400},
237 {"307200", B307200}, {"460800", B460800}, {"921600", B921600},
238 {"", 0}
239 };
240
241 static const int MAX_SPEEDS = sizeof (speedtab) / sizeof (speedtab[0]);
242
243 static dacf_op_t kbconfig_op[] = {
244 { DACF_OPID_POSTATTACH, kb_config },
245 { DACF_OPID_PREDETACH, kb_unconfig },
246 { DACF_OPID_END, NULL },
247 };
248
249 static dacf_op_t msconfig_op[] = {
250 { DACF_OPID_POSTATTACH, ms_config },
251 { DACF_OPID_PREDETACH, ms_unconfig },
252 { DACF_OPID_END, NULL },
253 };
254
255 static dacf_opset_t opsets[] = {
256 { "kb_config", kbconfig_op },
257 { "ms_config", msconfig_op },
258 { NULL, NULL }
259 };
260
261 struct dacfsw dacfsw = {
262 DACF_MODREV_1,
263 opsets,
264 };
265
266 static struct modldacf modldacf = {
267 &mod_dacfops, /* Type of module */
268 "Consconfig DACF",
269 &dacfsw
270 };
271
272 static struct modlinkage modlinkage = {
273 MODREV_1, (void *)&modldacf, NULL
274 };
275
276 int
277 _init(void)
278 {
279 return (mod_install(&modlinkage));
280 }
281
282 int
283 _fini(void)
284 {
285 /*
286 * This modules state is held in the kernel by space.c
287 * allowing this module to be unloaded.
288 */
289 return (mod_remove(&modlinkage));
290 }
291
292 int
293 _info(struct modinfo *modinfop)
294 {
295 return (mod_info(&modlinkage, modinfop));
296 }
297
298 /*PRINTFLIKE2*/
299 static void consconfig_dprintf(int, const char *, ...)
300 __KPRINTFLIKE(2);
301
302 static void
303 consconfig_dprintf(int l, const char *fmt, ...)
304 {
305 va_list ap;
306
307 #ifndef DEBUG
308 if (!l) {
309 return;
310 }
311 #endif /* DEBUG */
312 if (l < consconfig_errlevel) {
313 return;
314 }
315
316 va_start(ap, fmt);
317 (void) vprintf(fmt, ap);
318 va_end(ap);
319 }
320
321 /*
322 * Return a property value for the specified alias in /aliases.
323 */
324 char *
325 get_alias(char *alias, char *buf)
326 {
327 pnode_t node;
328 int len;
329
330 /* The /aliases node only exists in OBP >= 2.4. */
331 if ((node = prom_alias_node()) == OBP_BADNODE)
332 return (NULL);
333
334 if ((len = prom_getproplen(node, (caddr_t)alias)) <= 0)
335 return (NULL);
336
337 (void) prom_getprop(node, (caddr_t)alias, (caddr_t)buf);
338
339 /*
340 * The IEEE 1275 standard specifies that /aliases string property
341 * values should be null-terminated. Unfortunatly the reality
342 * is that most aren't and the OBP can't easily be modified to
343 * add null termination to these strings. So we'll add the
344 * null termination here. If the string already contains a
345 * null termination character then that's ok too because we'll
346 * just be adding a second one.
347 */
348 buf[len] = '\0';
349
350 prom_pathname(buf);
351 return (buf);
352 }
353
354 /*
355 * i_consconfig_createvp:
356 * This routine is a convenience routine that is passed a path and returns
357 * a vnode.
358 */
359 static vnode_t *
360 i_consconfig_createvp(char *path)
361 {
362 int error;
363 vnode_t *vp;
364 char *buf = NULL, *fullpath;
365
366 DPRINTF(DPRINT_L0, "i_consconfig_createvp: %s\n", path);
367 fullpath = kmem_alloc(MAXPATHLEN, KM_SLEEP);
368
369 if (strchr(path, ':') == NULL) {
370 /* convert an OBP path to a /devices path */
371 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
372 if (i_ddi_prompath_to_devfspath(path, buf) != DDI_SUCCESS) {
373 kmem_free(buf, MAXPATHLEN);
374 kmem_free(fullpath, MAXPATHLEN);
375 return (NULL);
376 }
377 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", buf);
378 kmem_free(buf, MAXPATHLEN);
379 } else {
380 /* convert a devfs path to a /devices path */
381 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", path);
382 }
383
384 DPRINTF(DPRINT_L0, "lookupname(%s)\n", fullpath);
385 error = lookupname(fullpath, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp);
386 kmem_free(fullpath, MAXPATHLEN);
387 if (error)
388 return (NULL);
389
390 DPRINTF(DPRINT_L0, "create vnode = 0x%p - dev 0x%lx\n", vp, vp->v_rdev);
391 ASSERT(vn_matchops(vp, spec_getvnodeops()));
392
393 return (vp);
394 }
395
396 /*
397 * consconfig_print_paths:
398 * Function to print out the various paths
399 */
400 static void
401 consconfig_print_paths(void)
402 {
403 char *path;
404
405 if (usb_kb_path != NULL)
406 cmn_err(CE_WARN,
407 "consconfig_dacf:usb_kb_path has been deprecated, "
408 "use consconfig:usb_kb_path instead");
409
410 if (usb_ms_path != NULL)
411 cmn_err(CE_WARN,
412 "consconfig_dacf:usb_ms_path has been deprecated, "
413 "use consconfig:usb_ms_path instead");
414
415 if (consconfig_errlevel > DPRINT_L0)
416 return;
417
418 path = NULL;
419 if (consconfig_usb_kb_path != NULL)
420 path = consconfig_usb_kb_path;
421 else if (usb_kb_path != NULL)
422 path = usb_kb_path;
423 if (path != NULL)
424 DPRINTF(DPRINT_L0, "usb keyboard path = %s\n", path);
425
426 path = plat_kbdpath();
427 if (path != NULL)
428 DPRINTF(DPRINT_L0, "keyboard path = %s\n", path);
429
430 path = NULL;
431 if (consconfig_usb_ms_path != NULL)
432 path = consconfig_usb_ms_path;
433 else if (usb_ms_path != NULL)
434 path = usb_ms_path;
435 if (path != NULL)
436 DPRINTF(DPRINT_L0, "usb mouse path = %s\n", path);
437
438 path = plat_mousepath();
439 if (path != NULL)
440 DPRINTF(DPRINT_L0, "mouse path = %s\n", path);
441
442 path = plat_stdinpath();
443 if (path != NULL)
444 DPRINTF(DPRINT_L0, "stdin path = %s\n", path);
445
446 path = plat_stdoutpath();
447 if (path != NULL)
448 DPRINTF(DPRINT_L0, "stdout path = %s\n", path);
449
450 path = plat_diagpath();
451 if (path != NULL)
452 DPRINTF(DPRINT_L0, "diag path = %s\n", path);
453
454 path = plat_fbpath();
455 if (path != NULL)
456 DPRINTF(DPRINT_L0, "fb path = %s\n", path);
457 }
458
459 /*
460 * consconfig_kbd_abort_enable:
461 * Send the CONSSETABORTENABLE ioctl to the lower layers. This ioctl
462 * will only be sent to the device if it is the console device.
463 * This ioctl tells the device to pay attention to abort sequences.
464 * In the case of kbtrans, this would tell the driver to pay attention
465 * to the two key abort sequences like STOP-A. In the case of the
466 * serial keyboard, it would be an abort sequence like a break.
467 */
468 static int
469 consconfig_kbd_abort_enable(ldi_handle_t lh)
470 {
471 int err, rval;
472
473 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_enable\n");
474
475 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_TRUE,
476 FKIOCTL, kcred, &rval);
477 return (err);
478 }
479
480 /*
481 * consconfig_kbd_abort_disable:
482 * Send CONSSETABORTENABLE ioctl to lower layers. This ioctl
483 * will only be sent to the device if it is the console device.
484 * This ioctl tells the physical device to ignore abort sequences,
485 * and send the sequences up to virtual keyboard(conskbd) so that
486 * STOP and A (or F1 and A) can be combined.
487 */
488 static int
489 consconfig_kbd_abort_disable(ldi_handle_t lh)
490 {
491 int err, rval;
492
493 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_disable\n");
494
495 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_FALSE,
496 FKIOCTL, kcred, &rval);
497 return (err);
498 }
499
500 #ifdef _HAVE_TEM_FIRMWARE
501 static int
502 consconfig_tem_supported(cons_state_t *sp)
503 {
504 dev_t dev;
505 dev_info_t *dip;
506 int *int_array;
507 uint_t nint;
508 int rv = 0;
509
510 if (sp->cons_fb_path == NULL)
511 return (0);
512
513 if ((dev = ddi_pathname_to_dev_t(sp->cons_fb_path)) == NODEV)
514 return (0); /* warning printed later by common code */
515
516 /*
517 * Here we hold the driver and check "tem-support" property.
518 * We're doing this with e_ddi_hold_devi_by_dev and
519 * ddi_prop_lookup_int_array without opening the driver since
520 * some video cards that don't support the kernel terminal
521 * emulator could hang or crash if opened too early during
522 * boot.
523 */
524 if ((dip = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) {
525 cmn_err(CE_WARN, "consconfig: cannot hold fb dev %s",
526 sp->cons_fb_path);
527 return (0);
528 }
529
530 /*
531 * Check that the tem-support property exists AND that
532 * it is equal to 1.
533 */
534 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,
535 DDI_PROP_DONTPASS, "tem-support", &int_array, &nint) ==
536 DDI_SUCCESS) {
537 if (nint > 0)
538 rv = int_array[0] == 1;
539 ddi_prop_free(int_array);
540 }
541
542 ddi_release_devi(dip);
543
544 return (rv);
545 }
546 #endif /* _HAVE_TEM_FIRMWARE */
547
548 /*
549 * consconfig_get_polledio:
550 * Query the console with the CONSPOLLEDIO ioctl.
551 * The polled I/O routines are used by debuggers to perform I/O while
552 * interrupts and normal kernel services are disabled.
553 */
554 static cons_polledio_t *
555 consconfig_get_polledio(ldi_handle_t lh)
556 {
557 int err, rval;
558 struct strioctl strioc;
559 cons_polledio_t *polled_io;
560
561 /*
562 * Setup the ioctl to be sent down to the lower driver.
563 */
564 strioc.ic_cmd = CONSOPENPOLLEDIO;
565 strioc.ic_timout = INFTIM;
566 strioc.ic_len = sizeof (polled_io);
567 strioc.ic_dp = (char *)&polled_io;
568
569 /*
570 * Send the ioctl to the driver. The ioctl will wait for
571 * the response to come back from wc. wc has already issued
572 * the CONSOPENPOLLEDIO to the lower layer driver.
573 */
574 err = ldi_ioctl(lh, I_STR, (intptr_t)&strioc, FKIOCTL, kcred, &rval);
575
576 if (err != 0) {
577 /*
578 * If the lower driver does not support polled I/O, then
579 * return NULL. This will be the case if the driver does
580 * not handle polled I/O, or OBP is going to handle polled
581 * I/O for the device.
582 */
583
584 return (NULL);
585 }
586
587 /*
588 * Return the polled I/O structure.
589 */
590 return (polled_io);
591 }
592
593 /*
594 * consconfig_setup_polledio:
595 * This routine does the setup work for polled I/O. First we get
596 * the polled_io structure from the lower layers
597 * and then we register the polled I/O
598 * callbacks with the debugger that will be using them.
599 */
600 static void
601 consconfig_setup_polledio(cons_state_t *sp, dev_t dev)
602 {
603 cons_polledio_t *polled_io;
604 ldi_handle_t lh;
605
606 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: start\n");
607
608
609 if (ldi_open_by_dev(&dev, OTYP_CHR,
610 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li) != 0)
611 return;
612
613
614 /*
615 * Get the polled io routines so that we can use this
616 * device with the debuggers.
617 */
618 polled_io = consconfig_get_polledio(lh);
619
620 /*
621 * If the get polledio failed, then we do not want to throw
622 * the polled I/O switch.
623 */
624 if (polled_io == NULL) {
625 DPRINTF(DPRINT_L0,
626 "consconfig_setup_polledio: get_polledio failed\n");
627 (void) ldi_close(lh, FREAD|FWRITE, kcred);
628 return;
629 }
630
631 /* Initialize the polled input */
632 polled_io_init();
633
634 /* Register the callbacks */
635 DPRINTF(DPRINT_L0,
636 "consconfig_setup_polledio: registering callbacks\n");
637 (void) polled_io_register_callbacks(polled_io, 0);
638
639 (void) ldi_close(lh, FREAD|FWRITE, kcred);
640
641 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: end\n");
642 }
643
644 static cons_state_t *
645 consconfig_state_init(void)
646 {
647 cons_state_t *sp;
648 int rval;
649
650 /* Initialize console information */
651 sp = kmem_zalloc(sizeof (cons_state_t), KM_SLEEP);
652 sp->cons_keyboard_problem = B_FALSE;
653
654 mutex_init(&sp->cons_lock, NULL, MUTEX_DRIVER, NULL);
655
656 /* check if consconfig:usb_kb_path is set in /etc/system */
657 consconfig_usb_kb_path = consconfig_get_usb_kb_path();
658
659 /* check if consconfig:usb_ms_path is set in /etc/system */
660 consconfig_usb_ms_path = consconfig_get_usb_ms_path();
661
662 consconfig_print_paths();
663
664 /* init external globals */
665 stdoutdev = NODEV;
666
667 /*
668 * Find keyboard, mouse, stdin, stdout and diag devices, if they
669 * exist on this platform.
670 */
671 sp->cons_diag_path = plat_diagpath();
672
673 if (consconfig_usb_kb_path != NULL) {
674 sp->cons_keyboard_path = consconfig_usb_kb_path;
675 } else if (usb_kb_path != NULL) {
676 sp->cons_keyboard_path = usb_kb_path;
677 } else {
678 sp->cons_keyboard_path = plat_kbdpath();
679 }
680
681 if (consconfig_usb_ms_path != NULL) {
682 sp->cons_mouse_path = consconfig_usb_ms_path;
683 } else if (usb_ms_path != NULL) {
684 sp->cons_mouse_path = usb_ms_path;
685 } else {
686 sp->cons_mouse_path = plat_mousepath();
687 }
688
689 /* Identify the stdout driver */
690 sp->cons_stdout_path = plat_stdoutpath();
691 sp->cons_stdout_is_fb = plat_stdout_is_framebuffer();
692
693 sp->cons_stdin_is_kbd = plat_stdin_is_keyboard();
694
695 if (sp->cons_stdin_is_kbd &&
696 (usb_kb_path != NULL || consconfig_usb_kb_path != NULL)) {
697 sp->cons_stdin_path = sp->cons_keyboard_path;
698 } else {
699 /*
700 * The standard in device may or may not be the same as
701 * the keyboard. Even if the keyboard is not the
702 * standard input, the keyboard console stream will
703 * still be built if the keyboard alias provided by the
704 * firmware exists and is valid.
705 */
706 sp->cons_stdin_path = plat_stdinpath();
707 }
708
709 if (sp->cons_stdout_is_fb) {
710 sp->cons_fb_path = sp->cons_stdout_path;
711
712 #ifdef _HAVE_TEM_FIRMWARE
713 sp->cons_tem_supported = consconfig_tem_supported(sp);
714
715 /*
716 * Systems which offer a virtual console must use that
717 * as a fallback whenever the fb doesn't support tem.
718 * Such systems cannot render characters to the screen
719 * using OBP.
720 */
721 if (!sp->cons_tem_supported) {
722 char *path;
723
724 if (plat_virtual_console_path(&path) >= 0) {
725 sp->cons_stdin_is_kbd = 0;
726 sp->cons_stdout_is_fb = 0;
727 sp->cons_stdin_path = path;
728 sp->cons_stdout_path = path;
729 sp->cons_fb_path = plat_fbpath();
730
731 cmn_err(CE_WARN,
732 "%s doesn't support terminal emulation "
733 "mode; switching to virtual console.",
734 sp->cons_fb_path);
735 }
736 }
737 #endif /* _HAVE_TEM_FIRMWARE */
738 } else {
739 sp->cons_fb_path = plat_fbpath();
740 #ifdef _HAVE_TEM_FIRMWARE
741 sp->cons_tem_supported = consconfig_tem_supported(sp);
742 #endif /* _HAVE_TEM_FIRMWARE */
743 }
744
745 sp->cons_li = ldi_ident_from_anon();
746
747 /* Save the pointer for retrieval by the dacf functions */
748 rval = space_store("consconfig", (uintptr_t)sp);
749 ASSERT(rval == 0);
750
751 return (sp);
752 }
753
754 static int
755 consconfig_relink_wc(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
756 {
757 int err, rval;
758 ldi_handle_t wc_lh;
759 dev_t wc_dev;
760
761 ASSERT(muxid != NULL);
762
763 /*
764 * NOTE: we could be in a dacf callback context right now. normally
765 * it's not legal to call any ldi_open_*() function from this context
766 * because we're currently holding device tree locks and if the
767 * ldi_open_*() call could try to acquire other device tree locks
768 * (to attach the device we're trying to open.) if this happens then
769 * we could deadlock. To avoid this situation, during initialization
770 * we made sure to grab a hold on the dip of the device we plan to
771 * open so that it can never be detached. Then we use
772 * ldi_open_by_dev() to actually open the device since it will see
773 * that the device is already attached and held and instead of
774 * acquire any locks it will only increase the reference count
775 * on the device.
776 */
777 wc_dev = sp->cons_wc_vp->v_rdev;
778 err = ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
779 kcred, &wc_lh, sp->cons_li);
780 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
781 if (err) {
782 cmn_err(CE_WARN, "consconfig_relink_wc: "
783 "unable to open wc device");
784 return (err);
785 }
786
787 if (new_lh != NULL) {
788 DPRINTF(DPRINT_L0, "linking stream under wc\n");
789
790 err = ldi_ioctl(wc_lh, I_PLINK, (uintptr_t)new_lh,
791 FKIOCTL, kcred, muxid);
792 if (err != 0) {
793 cmn_err(CE_WARN, "consconfig_relink_wc: "
794 "wc link failed, error %d", err);
795 }
796 } else {
797 DPRINTF(DPRINT_L0, "unlinking stream from under wc\n");
798
799 err = ldi_ioctl(wc_lh, I_PUNLINK, *muxid,
800 FKIOCTL, kcred, &rval);
801 if (err != 0) {
802 cmn_err(CE_WARN, "consconfig_relink_wc: "
803 "wc unlink failed, error %d", err);
804 } else {
805 *muxid = -1;
806 }
807 }
808
809 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
810 return (err);
811 }
812
813 static void
814 cons_build_upper_layer(cons_state_t *sp)
815 {
816 ldi_handle_t wc_lh;
817 struct strioctl strioc;
818 int rval;
819 dev_t dev;
820 dev_t wc_dev;
821
822 /*
823 * Build the wc->conskbd portion of the keyboard console stream.
824 * Even if no keyboard is attached to the system, the upper
825 * layer of the stream will be built. If the user attaches
826 * a keyboard after the system is booted, the keyboard driver
827 * and module will be linked under conskbd.
828 *
829 * Errors are generally ignored here because conskbd and wc
830 * are pseudo drivers and should be present on the system.
831 */
832
833 /* open the console keyboard device. will never be closed */
834 if (ldi_open_by_name(CONSKBD_PATH, FREAD|FWRITE|FNOCTTY,
835 kcred, &sp->conskbd_lh, sp->cons_li) != 0) {
836 panic("consconfig: unable to open conskbd device");
837 /*NOTREACHED*/
838 }
839
840 DPRINTF(DPRINT_L0, "conskbd_lh = %p\n", sp->conskbd_lh);
841
842 /* open the console mouse device. will never be closed */
843 if (ldi_open_by_name(CONSMS_PATH, FREAD|FWRITE|FNOCTTY,
844 kcred, &sp->consms_lh, sp->cons_li) != 0) {
845 panic("consconfig: unable to open consms device");
846 /*NOTREACHED*/
847 }
848
849 DPRINTF(DPRINT_L0, "consms_lh = %p\n", sp->consms_lh);
850
851 /*
852 * Get a vnode for the wc device and then grab a hold on the
853 * device dip so it can never detach. We need to do this now
854 * because later we'll have to open the wc device in a context
855 * were it isn't safe to acquire any device tree locks (ie, during
856 * a dacf callback.)
857 */
858 sp->cons_wc_vp = i_consconfig_createvp(WC_PATH);
859 if (sp->cons_wc_vp == NULL)
860 panic("consconfig: unable to find wc device");
861
862 if (e_ddi_hold_devi_by_dev(sp->cons_wc_vp->v_rdev, 0) == NULL)
863 panic("consconfig: unable to hold wc device");
864
865 /*
866 * Build the wc->conskbd portion of the keyboard console stream.
867 * Even if no keyboard is attached to the system, the upper
868 * layer of the stream will be built. If the user attaches
869 * a keyboard after the system is booted, the keyboard driver
870 * and module will be linked under conskbd.
871 *
872 * The act of linking conskbd under wc will cause wc to
873 * query the lower layers about their polled I/O routines
874 * using CONSOPENPOLLEDIO. This will fail on this link because
875 * there is not a physical keyboard linked under conskbd.
876 *
877 * Since conskbd and wc are pseudo drivers, errors are
878 * generally ignored when linking and unlinking them.
879 */
880 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
881
882 /*
883 * Get a vnode for the redirection device. (It has the
884 * connection to the workstation console device wired into it,
885 * so that it's not necessary to establish the connection
886 * here. If the redirection device is ever generalized to
887 * handle multiple client devices, it won't be able to
888 * establish the connection itself, and we'll have to do it
889 * here.)
890 */
891 wsconsvp = i_consconfig_createvp(IWSCN_PATH);
892 if (wsconsvp == NULL) {
893 panic("consconfig: unable to find iwscn device");
894 /*NOTREACHED*/
895 }
896
897 if (cons_tem_disable)
898 return;
899
900 if (sp->cons_fb_path == NULL) {
901 #if defined(__x86)
902 if (sp->cons_stdout_is_fb)
903 cmn_err(CE_WARN, "consconfig: no screen found");
904 #endif
905 return;
906 }
907
908 /* make sure the frame buffer device exists */
909 dev = ddi_pathname_to_dev_t(sp->cons_fb_path);
910 if (dev == NODEV) {
911 cmn_err(CE_WARN, "consconfig: "
912 "cannot find driver for screen device %s",
913 sp->cons_fb_path);
914 return;
915 }
916
917 #ifdef _HAVE_TEM_FIRMWARE
918 /*
919 * If the underlying fb device doesn't support terminal emulation,
920 * we don't want to open the wc device (below) because it depends
921 * on features which aren't available (polled mode io).
922 */
923 if (!sp->cons_tem_supported)
924 return;
925 #endif /* _HAVE_TEM_FIRMWARE */
926
927 /* tell wc to open the frame buffer device */
928 wc_dev = sp->cons_wc_vp->v_rdev;
929 if (ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, kcred,
930 &wc_lh, sp->cons_li)) {
931 cmn_err(CE_PANIC, "cons_build_upper_layer: "
932 "unable to open wc device");
933 }
934 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
935
936 strioc.ic_cmd = WC_OPEN_FB;
937 strioc.ic_timout = INFTIM;
938 strioc.ic_len = strlen(sp->cons_fb_path) + 1;
939 strioc.ic_dp = sp->cons_fb_path;
940
941 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc,
942 FKIOCTL, kcred, &rval) == 0)
943 consmode = CONS_KFB;
944 else
945 cmn_err(CE_WARN,
946 "consconfig: terminal emulator failed to initialize");
947 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
948 }
949
950 static void
951 consconfig_load_drivers(cons_state_t *sp)
952 {
953 /*
954 * Calling ddi_pathname_to_dev_t may cause the USB Host Controller
955 * drivers to be loaded. Here we make sure that EHCI is loaded
956 * earlier than {U, O}HCI. The order here is important. As
957 * we have observed many systems on which hangs occur if the
958 * {U,O}HCI companion controllers take over control from the BIOS
959 * before EHCI does. These hangs are also caused by BIOSes leaving
960 * interrupt-on-port-change enabled in the ehci controller, so that
961 * when uhci/ohci reset themselves, it induces a port change on
962 * the ehci companion controller. Since there's no interrupt handler
963 * installed at the time, the moment that interrupt is unmasked, an
964 * interrupt storm will occur. All this is averted when ehci is
965 * loaded first. And now you know..... the REST of the story.
966 *
967 * Regardless of platform, ehci needs to initialize first to avoid
968 * unnecessary connects and disconnects on the companion controller
969 * when ehci sets up the routing.
970 *
971 * The same is generally true of xhci. Many platforms have routing
972 * between the xhci controller and the ehci controller. To avoid those
973 * same disconnects, we load xhci before ehci.
974 */
975 (void) ddi_hold_installed_driver(ddi_name_to_major("xhci"));
976 (void) ddi_hold_installed_driver(ddi_name_to_major("ehci"));
977 (void) ddi_hold_installed_driver(ddi_name_to_major("uhci"));
978 (void) ddi_hold_installed_driver(ddi_name_to_major("ohci"));
979
980 /*
981 * The attaching of the drivers will cause the creation of the
982 * keyboard and mouse minor nodes, which will in turn trigger the
983 * dacf framework to call the keyboard and mouse configuration
984 * tasks. See PSARC/1998/212 for more details about the dacf
985 * framework.
986 *
987 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1
988 * is kb/mouse. zs0 must be attached before zs1. The zs driver
989 * is written this way and the hardware may depend on this, too.
990 * It would be better to enforce this by attaching zs in sibling
991 * order with a driver property, such as ddi-attachall.
992 */
993 if (sp->cons_stdin_path != NULL)
994 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path);
995 if (stdindev == NODEV) {
996 DPRINTF(DPRINT_L0,
997 "!fail to attach stdin: %s\n", sp->cons_stdin_path);
998 }
999 if (sp->cons_stdout_path != NULL)
1000 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path);
1001 if (sp->cons_keyboard_path != NULL)
1002 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path);
1003 if (sp->cons_mouse_path != NULL)
1004 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path);
1005 if (sp->cons_diag_path != NULL)
1006 diagdev = ddi_pathname_to_dev_t(sp->cons_diag_path);
1007
1008 /*
1009 * On x86, make sure the fb driver is loaded even if we don't use it
1010 * for the console. This will ensure that we create a /dev/fb link
1011 * which is required to start Xorg.
1012 */
1013 #if defined(__x86)
1014 if (sp->cons_fb_path != NULL)
1015 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path);
1016 #endif
1017
1018 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, "
1019 "mousedev %lx diagdev %lx\n", stdindev, stdoutdev, kbddev,
1020 mousedev, diagdev);
1021 }
1022
1023 #if !defined(__x86)
1024 void
1025 consconfig_virtual_console_vp(cons_state_t *sp)
1026 {
1027 char *virtual_cons_path;
1028
1029 if (plat_virtual_console_path(&virtual_cons_path) < 0)
1030 return;
1031
1032 DPRINTF(DPRINT_L0, "consconfig_virtual_console_vp: "
1033 "virtual console device path %s\n", virtual_cons_path);
1034
1035 ASSERT(sp->cons_stdout_path != NULL);
1036 if (strcmp(virtual_cons_path, sp->cons_stdout_path) == 0) {
1037 /* virtual console already in use */
1038 return;
1039 }
1040
1041 vsconsvp = i_consconfig_createvp(virtual_cons_path);
1042 if (vsconsvp == NULL) {
1043 cmn_err(CE_WARN, "consconfig_virtual_console_vp: "
1044 "unable to find serial virtual console device %s",
1045 virtual_cons_path);
1046 return;
1047 }
1048
1049 (void) e_ddi_hold_devi_by_dev(vsconsvp->v_rdev, 0);
1050 }
1051 #endif
1052
1053 static void
1054 consconfig_init_framebuffer(cons_state_t *sp)
1055 {
1056 if (!sp->cons_stdout_is_fb)
1057 return;
1058
1059 DPRINTF(DPRINT_L0, "stdout is framebuffer\n");
1060 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0);
1061
1062 /*
1063 * Console output is a framebuffer.
1064 * Find the framebuffer driver if we can, and make
1065 * ourselves a shadow vnode to track it with.
1066 */
1067 fbdev = stdoutdev;
1068 if (fbdev == NODEV) {
1069 DPRINTF(DPRINT_L3,
1070 "Can't find driver for console framebuffer\n");
1071 } else {
1072 /* stdoutdev is valid, of fbvp should exist */
1073 fbvp = i_consconfig_createvp(sp->cons_stdout_path);
1074 if (fbvp == NULL) {
1075 panic("consconfig_init_framebuffer: "
1076 "unable to find frame buffer device");
1077 /*NOTREACHED*/
1078 }
1079 ASSERT(fbvp->v_rdev == fbdev);
1080
1081 /* console device is never released */
1082 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0);
1083 }
1084 pm_cfb_setup(sp->cons_stdout_path);
1085 }
1086
1087 /*
1088 * consconfig_prepare_dev:
1089 * Flush the stream, push "pushmod" onto the stream.
1090 * for keyboard, issue the KIOCTRANSABLE ioctl, and
1091 * possible enable abort.
1092 */
1093 static void
1094 consconfig_prepare_dev(
1095 ldi_handle_t new_lh,
1096 const char *pushmod,
1097 int kbdtranslatable,
1098 int input_type,
1099 int dev_type)
1100 {
1101 int err, rval;
1102
1103 /* send a flush down the stream to the keyboard driver */
1104 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW,
1105 FKIOCTL, kcred, &rval);
1106
1107 if (pushmod) {
1108 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod,
1109 FKIOCTL, kcred, &rval);
1110 if (err) {
1111 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1112 "can't push streams module \"%s\", error %d",
1113 pushmod, err);
1114 }
1115 }
1116
1117 if (dev_type == CONS_MS)
1118 return;
1119
1120 ASSERT(dev_type == CONS_KBD);
1121
1122 err = ldi_ioctl(new_lh, KIOCTRANSABLE,
1123 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval);
1124 if (err) {
1125 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1126 "KIOCTRANSABLE failed, error: %d", err);
1127 }
1128
1129 /*
1130 * During boot, dynamic_console_config() will call the
1131 * function to enable abort on the console. If the
1132 * keyboard is hotplugged after boot, check to see if
1133 * the keyboard is the console input. If it is
1134 * enable abort on it.
1135 */
1136 if (input_type == CONSOLE_LOCAL)
1137 (void) consconfig_kbd_abort_enable(new_lh);
1138 }
1139
1140 /*
1141 * consconfig_relink_conskbd:
1142 * If new_lh is not NULL it should represent a driver with a
1143 * keyboard module pushed on top of it. The driver is then linked
1144 * underneath conskbd. the resulting stream will be
1145 * wc->conskbd->"new_lh driver".
1146 *
1147 * If new_lh is NULL, then an unlink operation is done on conskbd
1148 * that attempts to unlink the stream specified by *muxid.
1149 * the resulting stream will be wc->conskbd.
1150 */
1151 static int
1152 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1153 {
1154 int err, rval;
1155 int conskbd_relink = 0;
1156
1157 ASSERT(muxid != NULL);
1158
1159 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: "
1160 "conskbd_lh = %p, new_lh = %p, muxid = %x\n",
1161 sp->conskbd_lh, new_lh, *muxid);
1162
1163 /*
1164 * If conskbd is linked under wc then temporarily unlink it
1165 * from under wc so that the new_lh stream may be linked under
1166 * conskbd. This has to be done because streams are built bottom
1167 * up and linking a stream under conskbd isn't allowed when
1168 * conskbd is linked under wc.
1169 */
1170 if (sp->conskbd_muxid != -1) {
1171 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n");
1172 conskbd_relink = 1;
1173 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1174 if (err) {
1175 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1176 "wc unlink failed, error %d", err);
1177 return (err);
1178 }
1179 }
1180
1181 if (new_lh != NULL) {
1182 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n");
1183
1184 /* Link the stream represented by new_lh under conskbd */
1185 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh,
1186 FKIOCTL, kcred, muxid);
1187 if (err != 0) {
1188 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1189 "conskbd link failed, error %d", err);
1190 goto relink_failed;
1191 }
1192 } else {
1193 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n");
1194
1195 /*
1196 * This will cause the keyboard driver to be closed,
1197 * all modules to be popped, and the keyboard vnode released.
1198 */
1199 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid,
1200 FKIOCTL, kcred, &rval);
1201 if (err != 0) {
1202 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1203 "conskbd unlink failed, error %d", err);
1204 goto relink_failed;
1205 } else {
1206 *muxid = -1;
1207 }
1208
1209 consconfig_check_phys_kbd(sp);
1210 }
1211
1212 if (!conskbd_relink)
1213 return (err);
1214
1215 /*
1216 * Link consbkd back under wc.
1217 *
1218 * The act of linking conskbd back under wc will cause wc
1219 * to query the lower lower layers about their polled I/O
1220 * routines. This time the request will succeed because there
1221 * is a physical keyboard linked under conskbd.
1222 */
1223 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1224 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1225 if (err) {
1226 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1227 "wc link failed, error %d", err);
1228 }
1229 return (err);
1230
1231 relink_failed:
1232 if (!conskbd_relink)
1233 return (err);
1234
1235 /* something went wrong, try to reconnect conskbd back under wc */
1236 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1237 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1238 return (err);
1239 }
1240
1241 /*
1242 * consconfig_relink_consms:
1243 * If new_lh is not NULL it should represent a driver with a
1244 * mouse module pushed on top of it. The driver is then linked
1245 * underneath consms. the resulting stream will be
1246 * consms->"new_lh driver".
1247 *
1248 * If new_lh is NULL, then an unlink operation is done on consms
1249 * that attempts to unlink the stream specified by *muxid.
1250 */
1251 static int
1252 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1253 {
1254 int err, rval;
1255
1256 DPRINTF(DPRINT_L0, "consconfig_relink_consms: "
1257 "consms_lh = %p, new_lh = %p, muxid = %x\n",
1258 (void *)sp->consms_lh, (void *)new_lh, *muxid);
1259
1260 if (new_lh != NULL) {
1261 DPRINTF(DPRINT_L0, "linking mouse under consms\n");
1262
1263 /* Link ms/usbms stream underneath consms multiplexor. */
1264 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh,
1265 FKIOCTL, kcred, muxid);
1266 if (err != 0) {
1267 cmn_err(CE_WARN, "consconfig_relink_consms: "
1268 "mouse link failed, error %d", err);
1269 }
1270 } else {
1271 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n");
1272
1273 /* Tear down the mouse stream */
1274 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid,
1275 FKIOCTL, kcred, &rval);
1276 if (err != 0) {
1277 cmn_err(CE_WARN, "consconfig_relink_consms: "
1278 "mouse unlink failed, error %d", err);
1279 } else {
1280 *muxid = -1;
1281 }
1282 }
1283 return (err);
1284 }
1285
1286 static int
1287 cons_get_input_type(cons_state_t *sp)
1288 {
1289 int type;
1290
1291 /*
1292 * Now that we know what all the devices are, we can figure out
1293 * what kind of console we have.
1294 */
1295 if (sp->cons_stdin_is_kbd) {
1296 /* Stdin is from the system keyboard */
1297 type = CONSOLE_LOCAL;
1298 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) {
1299 /*
1300 * A reliable indicator that we are doing a remote console
1301 * is that stdin and stdout are the same.
1302 * This is probably a tip line.
1303 */
1304 type = CONSOLE_TIP;
1305 } else {
1306 type = CONSOLE_SERIAL_KEYBOARD;
1307 }
1308
1309 return (type);
1310 }
1311
1312 static void
1313 consconfig_init_input(cons_state_t *sp)
1314 {
1315 ldi_handle_t new_lh;
1316 dev_t cons_final_dev;
1317 int err;
1318
1319 cons_final_dev = NODEV;
1320
1321 switch (sp->cons_input_type) {
1322 case CONSOLE_LOCAL:
1323 DPRINTF(DPRINT_L0, "stdin is keyboard\n");
1324
1325 /*
1326 * The machine is allowed to boot without a keyboard.
1327 * If a user attaches a keyboard later, the keyboard
1328 * will be hooked into the console stream with the dacf
1329 * functions.
1330 *
1331 * The only drivers that look at kbbdev are the
1332 * serial drivers, which looks at kbdev to see if
1333 * they should allow abort on a break. In the absence
1334 * of keyboard, the serial drivers won't be attached
1335 * for any keyboard instance.
1336 */
1337 if (kbddev == NODEV) {
1338 /*
1339 * If there is a problem with the keyboard
1340 * during the driver loading, then the polled
1341 * input won't get setup properly if polled
1342 * input is needed. This means that if the
1343 * keyboard is hotplugged, the keyboard would
1344 * work normally, but going down to the
1345 * debugger would not work if polled input is
1346 * required. This field is set here. The next
1347 * time a keyboard is plugged in, the field is
1348 * checked in order to give the next keyboard a
1349 * chance at being registered for console
1350 * input.
1351 *
1352 * Although this code will rarely be needed,
1353 * USB keyboards can be flaky, so this code
1354 * will be useful on the occasion that the
1355 * keyboard doesn't enumerate when the drivers
1356 * are loaded.
1357 */
1358 DPRINTF(DPRINT_L2, "Error with console keyboard\n");
1359 sp->cons_keyboard_problem = B_TRUE;
1360 }
1361 stdindev = kbddev;
1362 cons_final_dev = sp->cons_wc_vp->v_rdev;
1363 break;
1364
1365 case CONSOLE_TIP:
1366 DPRINTF(DPRINT_L0, "console input is tty (%s)\n",
1367 sp->cons_stdin_path);
1368
1369 /*
1370 * Console device drivers must be able to output
1371 * after being closed.
1372 */
1373 rconsvp = i_consconfig_createvp(sp->cons_stdin_path);
1374 if (rconsvp == NULL) {
1375 panic("consconfig_init_input: "
1376 "unable to find stdin device (%s)",
1377 sp->cons_stdin_path);
1378 /*NOTREACHED*/
1379 }
1380 rconsdev = rconsvp->v_rdev;
1381
1382 ASSERT(rconsdev == stdindev);
1383
1384 cons_final_dev = rconsdev;
1385 break;
1386
1387 case CONSOLE_SERIAL_KEYBOARD:
1388 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n");
1389
1390 /*
1391 * Non-keyboard input device, but not rconsdev.
1392 * This is known as the "serial keyboard" case - the
1393 * most likely use is someone has a keyboard attached
1394 * to a serial port (tip) and still has output on a
1395 * framebuffer.
1396 *
1397 * In this case, the serial driver must be linked
1398 * directly beneath wc. Since conskbd was linked
1399 * underneath wc above, first we unlink conskbd.
1400 */
1401 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1402 sp->conskbd_muxid = -1;
1403
1404 /*
1405 * Open the serial keyboard, configure it,
1406 * and link it underneath wc.
1407 */
1408 err = ldi_open_by_name(sp->cons_stdin_path,
1409 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li);
1410 if (err == 0) {
1411 struct termios termios;
1412 int rval;
1413 int stdin_muxid;
1414
1415 consconfig_prepare_dev(new_lh,
1416 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD);
1417
1418 /* Re-set baud rate */
1419 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios,
1420 FKIOCTL, kcred, &rval);
1421
1422 /* Set baud rate */
1423 if (consconfig_setmodes(stdindev, &termios) == 0) {
1424 err = ldi_ioctl(new_lh,
1425 TCSETSF, (intptr_t)&termios,
1426 FKIOCTL, kcred, &rval);
1427 if (err) {
1428 cmn_err(CE_WARN,
1429 "consconfig_init_input: "
1430 "TCSETSF failed, error %d", err);
1431 }
1432 }
1433
1434 /*
1435 * Now link the serial keyboard direcly under wc
1436 * we don't save the returned muxid because we
1437 * don't support changing/hotplugging the console
1438 * keyboard when it is a serial keyboard.
1439 */
1440 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid);
1441
1442 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1443 }
1444
1445 cons_final_dev = sp->cons_wc_vp->v_rdev;
1446 break;
1447
1448 default:
1449 panic("consconfig_init_input: "
1450 "unsupported console input/output combination");
1451 /*NOTREACHED*/
1452 }
1453
1454 /*
1455 * Use the redirection device/workstation console pair as the "real"
1456 * console if the latter hasn't already been set.
1457 * The workstation console driver needs to see rwsconsvp, but
1458 * all other access should be through the redirecting driver.
1459 */
1460 if (rconsvp == NULL) {
1461 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n");
1462 rconsvp = wsconsvp;
1463 rconsdev = wsconsvp->v_rdev;
1464 }
1465
1466 ASSERT(cons_final_dev != NODEV);
1467
1468 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
1469 kcred, &new_lh, sp->cons_li);
1470 if (err) {
1471 panic("consconfig_init_input: "
1472 "unable to open console device");
1473 /*NOTREACHED*/
1474 }
1475
1476 /* Enable abort on the console */
1477 (void) consconfig_kbd_abort_enable(new_lh);
1478
1479 /* Now we must close it to make console logins happy */
1480 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1481
1482 /* Set up polled input if it is supported by the console device */
1483 if (plat_use_polled_debug()) {
1484 /*
1485 * In the debug case, register the keyboard polled entry
1486 * points, but don't throw the switch in the debugger. This
1487 * allows the polled entry points to be checked by hand
1488 */
1489 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1490 } else {
1491 if (diagdev != NODEV)
1492 consconfig_setup_polledio(sp, diagdev);
1493 else
1494 consconfig_setup_polledio(sp, cons_final_dev);
1495 }
1496
1497 kadb_uses_kernel();
1498 }
1499
1500 /*
1501 * This function kicks off the console configuration.
1502 * Configure keyboard and mouse. Main entry here.
1503 */
1504 void
1505 dynamic_console_config(void)
1506 {
1507 /* initialize space.c globals */
1508 stdindev = NODEV;
1509 mousedev = NODEV;
1510 kbddev = NODEV;
1511 fbdev = NODEV;
1512 diagdev = NODEV;
1513 fbvp = NULL;
1514 fbdip = NULL;
1515 wsconsvp = NULL;
1516 rwsconsvp = NULL;
1517 rwsconsdev = NODEV;
1518 rconsvp = NULL;
1519 rconsdev = NODEV;
1520
1521 /* Initialize cons_state_t structure and console device paths */
1522 consconfig_sp = consconfig_state_init();
1523 ASSERT(consconfig_sp);
1524
1525 /* Build upper layer of console stream */
1526 cons_build_upper_layer(consconfig_sp);
1527
1528 /*
1529 * Load keyboard/mouse drivers. The dacf routines will
1530 * plumb the devices into the console stream
1531 *
1532 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard
1533 * and mouse drivers are linked into their respective console
1534 * streams if the pathnames are valid.
1535 */
1536 consconfig_load_drivers(consconfig_sp);
1537 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp);
1538
1539 rwsconsvp = consconfig_sp->cons_wc_vp;
1540 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev;
1541
1542
1543 /* initialize framebuffer, console input, and redirection device */
1544 consconfig_init_framebuffer(consconfig_sp);
1545 consconfig_init_input(consconfig_sp);
1546
1547 #if !defined(__x86)
1548 /* initialize virtual console vp for logging if needed */
1549 consconfig_virtual_console_vp(consconfig_sp);
1550 #endif
1551
1552 DPRINTF(DPRINT_L0,
1553 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n",
1554 mousedev, kbddev, fbdev, rconsdev);
1555
1556 flush_deferred_console_buf();
1557 consconfig_sp->cons_initialized = B_TRUE;
1558 }
1559
1560
1561 /*
1562 * Start of DACF interfaces
1563 */
1564
1565 /*
1566 * Do the real job for keyboard/mouse auto-configuration.
1567 */
1568 static int
1569 do_config(cons_state_t *sp, cons_prop_t *prop)
1570 {
1571 ldi_handle_t lh;
1572 dev_t dev;
1573 int error;
1574
1575 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1576
1577 dev = prop->cp_dev;
1578 error = ldi_open_by_dev(&dev, OTYP_CHR,
1579 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li);
1580 if (error) {
1581 return (DACF_FAILURE);
1582 }
1583 ASSERT(dev == prop->cp_dev); /* clone not supported */
1584
1585 /*
1586 * Prepare the new keyboard/mouse driver
1587 * to be linked under conskbd/consms.
1588 */
1589 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN,
1590 sp->cons_input_type, prop->cp_type);
1591
1592 if (prop->cp_type == CONS_KBD) {
1593 /*
1594 * Tell the physical keyboard driver to send
1595 * the abort sequences up to the virtual keyboard
1596 * driver so that STOP and A (or F1 and A)
1597 * can be applied to different keyboards.
1598 */
1599 (void) consconfig_kbd_abort_disable(lh);
1600
1601 /* Link the stream underneath conskbd */
1602 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid);
1603 } else {
1604 /* Link the stream underneath consms */
1605 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid);
1606 }
1607
1608 /*
1609 * At this point, the stream is:
1610 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"]
1611 * for mouse: consms->["module_name"->]"mouse_avp driver"
1612 */
1613
1614 /* Close the driver stream, it will stay linked under conskbd */
1615 (void) ldi_close(lh, FREAD|FWRITE, kcred);
1616
1617 if (error) {
1618 return (DACF_FAILURE);
1619 }
1620
1621 return (DACF_SUCCESS);
1622 }
1623
1624 static int
1625 do_unconfig(cons_state_t *sp, cons_prop_t *prop)
1626 {
1627 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1628
1629 if (prop->cp_type == CONS_KBD)
1630 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid));
1631 else
1632 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid));
1633 }
1634
1635 static int
1636 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type)
1637 {
1638 major_t major;
1639 minor_t minor;
1640 dev_t dev;
1641 dev_info_t *dip;
1642 cons_state_t *sp;
1643 cons_prop_t *prop;
1644 const char *pushmod;
1645
1646 /*
1647 * Retrieve the state information
1648 * Some platforms may use the old-style "consconfig" to configure
1649 * console stream modules but may also support devices that happen
1650 * to match a rule in /etc/dacf.conf. This will cause a problem
1651 * since the console state structure will not be initialized.
1652 * In that case, these entry points should silently fail and
1653 * permit console to be plumbed later in boot.
1654 */
1655 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1656 return (DACF_FAILURE);
1657
1658 dip = dacf_devinfo_node(minor_hdl);
1659 major = ddi_driver_major(dip);
1660 ASSERT(major != DDI_MAJOR_T_NONE);
1661 minor = dacf_minor_number(minor_hdl);
1662 dev = makedevice(major, minor);
1663 ASSERT(dev != NODEV);
1664
1665 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n",
1666 (char *)dacf_driver_name(minor_hdl), dev, major);
1667
1668 /* Access to the global variables is synchronized */
1669 mutex_enter(&sp->cons_lock);
1670
1671 /*
1672 * Check if the keyboard/mouse has already configured.
1673 */
1674 if (consconfig_find_dev(sp, dev) != NULL) {
1675 mutex_exit(&sp->cons_lock);
1676 return (DACF_SUCCESS);
1677 }
1678
1679 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP);
1680
1681 /* Config the new keyboard/mouse device */
1682 prop->cp_dev = dev;
1683
1684 pushmod = dacf_get_arg(arg_hdl, "pushmod");
1685 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP);
1686
1687 prop->cp_type = type;
1688 if (do_config(sp, prop) != DACF_SUCCESS) {
1689 /*
1690 * The keyboard/mouse node failed to open.
1691 * Set the major and minor numbers to 0 so
1692 * kb_unconfig/ms_unconfig won't unconfigure
1693 * this node if it is detached.
1694 */
1695 mutex_exit(&sp->cons_lock);
1696 consconfig_free_prop(prop);
1697 return (DACF_FAILURE);
1698 }
1699
1700 consconfig_add_dev(sp, prop);
1701
1702 /*
1703 * See if there was a problem with the console keyboard during boot.
1704 * If so, try to register polled input for this keyboard.
1705 */
1706 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) {
1707 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1708 sp->cons_keyboard_problem = B_FALSE;
1709 }
1710
1711 /* Prevent autodetach due to memory pressure */
1712 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
1713
1714 mutex_exit(&sp->cons_lock);
1715
1716 return (DACF_SUCCESS);
1717 }
1718
1719 static int
1720 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl)
1721 {
1722 _NOTE(ARGUNUSED(arg_hdl))
1723
1724 major_t major;
1725 minor_t minor;
1726 dev_t dev;
1727 dev_info_t *dip;
1728 cons_state_t *sp;
1729 cons_prop_t *prop;
1730
1731 /*
1732 * Retrieve the state information
1733 * So if there isn't a state available, then this entry point just
1734 * returns. See note in kb_config().
1735 */
1736 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1737 return (DACF_SUCCESS);
1738
1739 dip = dacf_devinfo_node(minor_hdl);
1740 major = ddi_driver_major(dip);
1741 ASSERT(major != DDI_MAJOR_T_NONE);
1742 minor = dacf_minor_number(minor_hdl);
1743 dev = makedevice(major, minor);
1744 ASSERT(dev != NODEV);
1745
1746 /*
1747 * Check if the keyboard/mouse that is being detached
1748 * is the console keyboard/mouse or not.
1749 */
1750 mutex_enter(&sp->cons_lock);
1751 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1752 mutex_exit(&sp->cons_lock);
1753 return (DACF_SUCCESS);
1754 }
1755
1756 /*
1757 * This dev may be opened physically and then hotplugged out.
1758 */
1759 if (prop->cp_muxid != -1) {
1760 (void) do_unconfig(sp, prop);
1761 consconfig_rem_dev(sp, dev);
1762 }
1763
1764 mutex_exit(&sp->cons_lock);
1765
1766 return (DACF_SUCCESS);
1767 }
1768
1769 /*
1770 * This is the post-attach / pre-detach action function for the keyboard
1771 * and mouse. This function is associated with a node type in /etc/dacf.conf.
1772 */
1773 static int
1774 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1775 {
1776 _NOTE(ARGUNUSED(flags))
1777
1778 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD));
1779 }
1780
1781 static int
1782 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1783 {
1784 _NOTE(ARGUNUSED(flags))
1785
1786 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS));
1787 }
1788
1789 static int
1790 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1791 {
1792 _NOTE(ARGUNUSED(flags))
1793
1794 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1795 }
1796
1797 static int
1798 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1799 {
1800 _NOTE(ARGUNUSED(flags))
1801
1802 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1803 }
1804
1805 /*
1806 * consconfig_link and consconfig_unlink are provided to support
1807 * direct access to physical keyboard/mouse underlying conskbd/
1808 * consms.
1809 * When the keyboard/mouse is opened physically via its device
1810 * file, it will be unlinked from the virtual one, and when it
1811 * is closed physically, it will be linked back under the virtual
1812 * one.
1813 */
1814 void
1815 consconfig_link(major_t major, minor_t minor)
1816 {
1817 char buf[MAXPATHLEN];
1818 dev_t dev;
1819 cons_state_t *sp;
1820 cons_prop_t *prop;
1821
1822 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1823 return;
1824
1825 dev = makedevice(major, minor);
1826 ASSERT(dev != NODEV);
1827
1828 mutex_enter(&sp->cons_lock);
1829 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1830 mutex_exit(&sp->cons_lock);
1831 return;
1832 }
1833
1834 if (do_config(sp, prop) != DACF_SUCCESS) {
1835 (void) ddi_dev_pathname(dev, 0, buf);
1836 if (prop->cp_type == CONS_KBD)
1837 cmn_err(CE_WARN, "Failed to relink the keyboard "
1838 "(%s) underneath virtual keyboard", buf);
1839 else
1840 cmn_err(CE_WARN, "Failed to relink the mouse "
1841 "(%s) underneath virtual mouse", buf);
1842 consconfig_rem_dev(sp, dev);
1843 }
1844
1845 mutex_exit(&sp->cons_lock);
1846 }
1847
1848
1849 int
1850 consconfig_unlink(major_t major, minor_t minor)
1851 {
1852 dev_t dev;
1853 cons_state_t *sp;
1854 cons_prop_t *prop;
1855 int error;
1856
1857 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1858 return (DACF_SUCCESS);
1859
1860 dev = makedevice(major, minor);
1861 ASSERT(dev != NODEV);
1862
1863 mutex_enter(&sp->cons_lock);
1864 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1865 mutex_exit(&sp->cons_lock);
1866 return (DACF_FAILURE);
1867 }
1868
1869 error = do_unconfig(sp, prop);
1870
1871 /*
1872 * Keep this dev on the list, for this dev is still online.
1873 */
1874 mutex_exit(&sp->cons_lock);
1875
1876 return (error);
1877 }
1878
1879 /*
1880 * Routine to set baud rate, bits-per-char, parity and stop bits
1881 * on the console line when necessary.
1882 */
1883 static int
1884 consconfig_setmodes(dev_t dev, struct termios *termiosp)
1885 {
1886 char buf[MAXPATHLEN];
1887 int len = MAXPATHLEN;
1888 char name[16];
1889 int ppos, i;
1890 char *path;
1891 dev_t tdev;
1892
1893 /*
1894 * First, search for a devalias which matches this dev_t.
1895 * Try all of ttya through ttyz until no such alias
1896 */
1897 (void) strcpy(name, "ttya");
1898 for (i = 0; i < ('z'-'a'); i++) {
1899 name[3] = 'a' + i; /* increment device name */
1900 path = get_alias(name, buf);
1901 if (path == NULL)
1902 return (1);
1903
1904 tdev = ddi_pathname_to_dev_t(path);
1905 if (tdev == dev)
1906 break; /* Exit loop if found */
1907 }
1908
1909 if (i >= ('z'-'a'))
1910 return (1); /* If we didn't find it, return */
1911
1912 /*
1913 * Now that we know which "tty" this corresponds to, retrieve
1914 * the "ttya-mode" options property, which tells us how to configure
1915 * the line.
1916 */
1917 (void) strcpy(name, "ttya-mode"); /* name of option we want */
1918 name[3] = 'a' + i; /* Adjust to correct line */
1919
1920 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name,
1921 buf, &len) != DDI_PROP_SUCCESS)
1922 return (1); /* if no such option, just return */
1923
1924 /*
1925 * The IEEE 1275 standard specifies that /aliases string property
1926 * values should be null-terminated. Unfortunately the reality
1927 * is that most aren't and the OBP can't easily be modified to
1928 * add null termination to these strings. So we'll add the
1929 * null termination here. If the string already contains a
1930 * null termination character then that's ok too because we'll
1931 * just be adding a second one.
1932 */
1933 buf[len] = '\0';
1934
1935 /* Clear out options we will be setting */
1936 termiosp->c_cflag &=
1937 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB);
1938
1939 /* Clear options which potentially conflict with new settings */
1940 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT);
1941
1942 /*
1943 * Now, parse the string. Wish I could use sscanf().
1944 * Format 9600,8,n,1,-
1945 * baud rate, bits-per-char, parity, stop-bits, ignored
1946 */
1947 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */
1948 if ((buf[ppos] == 0) || (buf[ppos] == ','))
1949 break;
1950 }
1951
1952 if (buf[ppos] != ',') {
1953 cmn_err(CE_WARN, "consconfig_setmodes: "
1954 "invalid mode string %s", buf);
1955 return (1);
1956 }
1957
1958 for (i = 0; i < MAX_SPEEDS; i++) {
1959 if (strncmp(buf, speedtab[i].name, ppos) == 0)
1960 break;
1961 }
1962
1963 if (i >= MAX_SPEEDS) {
1964 cmn_err(CE_WARN,
1965 "consconfig_setmodes: unrecognized speed in %s", buf);
1966 return (1);
1967 }
1968
1969 /* Found the baud rate, set it */
1970 termiosp->c_cflag |= speedtab[i].code & CBAUD;
1971 if (speedtab[i].code > 16) /* cfsetospeed! */
1972 termiosp->c_cflag |= CBAUDEXT;
1973
1974 /* Set bits per character */
1975 switch (buf[ppos+1]) {
1976 case '8':
1977 termiosp->c_cflag |= CS8;
1978 break;
1979 case '7':
1980 termiosp->c_cflag |= CS7;
1981 break;
1982 default:
1983 cmn_err(CE_WARN,
1984 "consconfig_setmodes: illegal bits-per-char %s", buf);
1985 return (1);
1986 }
1987
1988 /* Set parity */
1989 switch (buf[ppos+3]) {
1990 case 'o':
1991 termiosp->c_cflag |= PARENB | PARODD;
1992 break;
1993 case 'e':
1994 termiosp->c_cflag |= PARENB; /* enabled, not odd */
1995 break;
1996 case 'n':
1997 break; /* not enabled. */
1998 default:
1999 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf);
2000 return (1);
2001 }
2002
2003 /* Set stop bits */
2004 switch (buf[ppos+5]) {
2005 case '1':
2006 break; /* No extra stop bit */
2007 case '2':
2008 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */
2009 break;
2010 default:
2011 cmn_err(CE_WARN, "consconfig_setmodes: "
2012 "illegal stop bits %s", buf);
2013 return (1);
2014 }
2015
2016 return (0);
2017 }
2018
2019 /*
2020 * Check to see if underlying keyboard devices are still online,
2021 * if any one is offline now, unlink it.
2022 */
2023 static void
2024 consconfig_check_phys_kbd(cons_state_t *sp)
2025 {
2026 ldi_handle_t kb_lh;
2027 cons_prop_t *prop;
2028 int error;
2029 int rval;
2030
2031 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2032 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1))
2033 continue;
2034
2035 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR,
2036 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li);
2037
2038 if (error) {
2039 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK,
2040 prop->cp_muxid, FKIOCTL, kcred, &rval);
2041 prop->cp_dev = NODEV;
2042 } else {
2043 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred);
2044 }
2045 }
2046
2047 /*
2048 * Remove all disconnected keyboards,
2049 * whose dev is turned into NODEV above.
2050 */
2051 consconfig_rem_dev(sp, NODEV);
2052 }
2053
2054 /*
2055 * Remove devices according to dev, which may be NODEV
2056 */
2057 static void
2058 consconfig_rem_dev(cons_state_t *sp, dev_t dev)
2059 {
2060 cons_prop_t *prop;
2061 cons_prop_t *prev_prop;
2062 cons_prop_t *tmp_prop;
2063 cons_prop_t *head_prop;
2064
2065 head_prop = NULL;
2066 prev_prop = NULL;
2067 for (prop = sp->cons_km_prop; prop != NULL; ) {
2068 if (prop->cp_dev == dev) {
2069 tmp_prop = prop->cp_next;
2070 consconfig_free_prop(prop);
2071 prop = tmp_prop;
2072 if (prev_prop)
2073 prev_prop->cp_next = prop;
2074 } else {
2075 if (head_prop == NULL)
2076 head_prop = prop;
2077 prev_prop = prop;
2078 prop = prop->cp_next;
2079 }
2080 }
2081 sp->cons_km_prop = head_prop;
2082 }
2083
2084 /*
2085 * Add a dev according to prop
2086 */
2087 static void
2088 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop)
2089 {
2090 prop->cp_next = sp->cons_km_prop;
2091 sp->cons_km_prop = prop;
2092 }
2093
2094 /*
2095 * Find a device from our list according to dev
2096 */
2097 static cons_prop_t *
2098 consconfig_find_dev(cons_state_t *sp, dev_t dev)
2099 {
2100 cons_prop_t *prop;
2101
2102 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2103 if (prop->cp_dev == dev)
2104 break;
2105 }
2106
2107 return (prop);
2108 }
2109
2110 /*
2111 * Free a cons prop associated with a keyboard or mouse
2112 */
2113 static void
2114 consconfig_free_prop(cons_prop_t *prop)
2115 {
2116 if (prop->cp_pushmod)
2117 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1);
2118 kmem_free(prop, sizeof (cons_prop_t));
2119 }
2120
2121 /*
2122 * The early boot code can't print to a usb serial device or the
2123 * graphical boot screen.
2124 *
2125 * The early boot messages are saved in a buffer at the address indicated
2126 * by "deferred-console-buf" This function flushes the message to the
2127 * current console now that it is set up.
2128 */
2129 static void
2130 flush_deferred_console_buf(void)
2131 {
2132 int rval;
2133 vnode_t *vp;
2134 uint_t defcons_buf;
2135 char *kc, *bc, *defcons_kern_buf;
2136
2137 /* defcons_buf is in low memory, so an int works here */
2138 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
2139 DDI_PROP_DONTPASS, "deferred-console-buf", 0);
2140
2141 if (defcons_buf == 0)
2142 return;
2143
2144 /*
2145 * After consconfig() and before userland opens /dev/sysmsg,
2146 * console I/O is goes to polled I/O entry points.
2147 *
2148 * If usb-serial doesn't implement polled I/O, we need
2149 * to open /dev/console now to get kernel console I/O to work.
2150 * We also push ttcompat and ldterm explicitly to get the
2151 * correct output format (autopush isn't set up yet). We
2152 * ignore push errors because they are non-fatal.
2153 * Note that opening /dev/console causes rconsvp to be
2154 * opened as well.
2155 */
2156 if (cons_polledio == NULL) {
2157 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY,
2158 0, &vp, 0, 0) != 0)
2159 return;
2160
2161 if (rconsvp) {
2162 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2163 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval);
2164 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2165 (intptr_t)"ttcompat", FKIOCTL, K_TO_K,
2166 kcred, &rval);
2167 }
2168 }
2169
2170 /*
2171 * Copy message to a kernel buffer. Various kernel routines
2172 * expect buffer to be above kernelbase
2173 */
2174 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP);
2175 bc = (char *)(uintptr_t)defcons_buf;
2176 while (*kc++ = *bc++)
2177 ;
2178 console_printf("%s", defcons_kern_buf);
2179
2180 kmem_free(defcons_kern_buf, MMU_PAGESIZE);
2181 }
2182
2183 boolean_t
2184 consconfig_console_is_tipline(void)
2185 {
2186 cons_state_t *sp;
2187
2188 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2189 return (B_FALSE);
2190
2191 if (sp->cons_input_type == CONSOLE_TIP)
2192 return (B_TRUE);
2193
2194 return (B_FALSE);
2195 }
2196
2197 boolean_t
2198 consconfig_dacf_initialized(void)
2199 {
2200 cons_state_t *sp;
2201
2202 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2203 return (B_FALSE);
2204
2205 return (sp->cons_initialized);
2206 }