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 * 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 may cause the USB Host Controller
946 * drivers to be loaded. Here we make sure that EHCI is loaded
947 * earlier than {U, O}HCI. The order here is important. As
948 * we have observed many systems on which hangs occur if the
949 * {U,O}HCI companion controllers take over control from the BIOS
950 * before EHCI does. These hangs are also caused by BIOSes leaving
951 * interrupt-on-port-change enabled in the ehci controller, so that
952 * when uhci/ohci reset themselves, it induces a port change on
953 * the ehci companion controller. Since there's no interrupt handler
954 * installed at the time, the moment that interrupt is unmasked, an
955 * interrupt storm will occur. All this is averted when ehci is
956 * loaded first. And now you know..... the REST of the story.
957 *
958 * Regardless of platform, ehci needs to initialize first to avoid
959 * unnecessary connects and disconnects on the companion controller
960 * when ehci sets up the routing.
961 */
962 (void) ddi_hold_installed_driver(ddi_name_to_major("ehci"));
963 (void) ddi_hold_installed_driver(ddi_name_to_major("uhci"));
964 (void) ddi_hold_installed_driver(ddi_name_to_major("ohci"));
965
966 /*
967 * The attaching of the drivers will cause the creation of the
968 * keyboard and mouse minor nodes, which will in turn trigger the
969 * dacf framework to call the keyboard and mouse configuration
970 * tasks. See PSARC/1998/212 for more details about the dacf
971 * framework.
972 *
973 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1
974 * is kb/mouse. zs0 must be attached before zs1. The zs driver
975 * is written this way and the hardware may depend on this, too.
976 * It would be better to enforce this by attaching zs in sibling
977 * order with a driver property, such as ddi-attachall.
978 */
979 if (sp->cons_stdin_path != NULL)
980 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path);
981 if (stdindev == NODEV) {
982 DPRINTF(DPRINT_L0,
983 "!fail to attach stdin: %s\n", sp->cons_stdin_path);
984 }
985 if (sp->cons_stdout_path != NULL)
986 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path);
987 if (sp->cons_keyboard_path != NULL)
988 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path);
989 if (sp->cons_mouse_path != NULL)
990 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path);
991
992 /*
993 * On x86, make sure the fb driver is loaded even if we don't use it
994 * for the console. This will ensure that we create a /dev/fb link
995 * which is required to start Xorg.
996 */
997 #if defined(__x86)
998 if (sp->cons_fb_path != NULL)
999 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path);
1000 #endif
1001
1002 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, "
1003 "mousedev %lx\n", stdindev, stdoutdev, kbddev, mousedev);
1004 }
1005
1006 #if !defined(__x86)
1007 void
1008 consconfig_virtual_console_vp(cons_state_t *sp)
1009 {
1010 char *virtual_cons_path;
1011
1012 if (plat_virtual_console_path(&virtual_cons_path) < 0)
1013 return;
1014
1015 DPRINTF(DPRINT_L0, "consconfig_virtual_console_vp: "
1016 "virtual console device path %s\n", virtual_cons_path);
1017
1018 ASSERT(sp->cons_stdout_path != NULL);
1019 if (strcmp(virtual_cons_path, sp->cons_stdout_path) == 0) {
1020 /* virtual console already in use */
1021 return;
1022 }
1023
1024 vsconsvp = i_consconfig_createvp(virtual_cons_path);
1025 if (vsconsvp == NULL) {
1026 cmn_err(CE_WARN, "consconfig_virtual_console_vp: "
1027 "unable to find serial virtual console device %s",
1028 virtual_cons_path);
1029 return;
1030 }
1031
1032 (void) e_ddi_hold_devi_by_dev(vsconsvp->v_rdev, 0);
1033 }
1034 #endif
1035
1036 static void
1037 consconfig_init_framebuffer(cons_state_t *sp)
1038 {
1039 if (!sp->cons_stdout_is_fb)
1040 return;
1041
1042 DPRINTF(DPRINT_L0, "stdout is framebuffer\n");
1043 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0);
1044
1045 /*
1046 * Console output is a framebuffer.
1047 * Find the framebuffer driver if we can, and make
1048 * ourselves a shadow vnode to track it with.
1049 */
1050 fbdev = stdoutdev;
1051 if (fbdev == NODEV) {
1052 DPRINTF(DPRINT_L3,
1053 "Can't find driver for console framebuffer\n");
1054 } else {
1055 /* stdoutdev is valid, of fbvp should exist */
1056 fbvp = i_consconfig_createvp(sp->cons_stdout_path);
1057 if (fbvp == NULL) {
1058 panic("consconfig_init_framebuffer: "
1059 "unable to find frame buffer device");
1060 /*NOTREACHED*/
1061 }
1062 ASSERT(fbvp->v_rdev == fbdev);
1063
1064 /* console device is never released */
1065 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0);
1066 }
1067 pm_cfb_setup(sp->cons_stdout_path);
1068 }
1069
1070 /*
1071 * consconfig_prepare_dev:
1072 * Flush the stream, push "pushmod" onto the stream.
1073 * for keyboard, issue the KIOCTRANSABLE ioctl, and
1074 * possible enable abort.
1075 */
1076 static void
1077 consconfig_prepare_dev(
1078 ldi_handle_t new_lh,
1079 const char *pushmod,
1080 int kbdtranslatable,
1081 int input_type,
1082 int dev_type)
1083 {
1084 int err, rval;
1085
1086 /* send a flush down the stream to the keyboard driver */
1087 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW,
1088 FKIOCTL, kcred, &rval);
1089
1090 if (pushmod) {
1091 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod,
1092 FKIOCTL, kcred, &rval);
1093 if (err) {
1094 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1095 "can't push streams module \"%s\", error %d",
1096 pushmod, err);
1097 }
1098 }
1099
1100 if (dev_type == CONS_MS)
1101 return;
1102
1103 ASSERT(dev_type == CONS_KBD);
1104
1105 err = ldi_ioctl(new_lh, KIOCTRANSABLE,
1106 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval);
1107 if (err) {
1108 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1109 "KIOCTRANSABLE failed, error: %d", err);
1110 }
1111
1112 /*
1113 * During boot, dynamic_console_config() will call the
1114 * function to enable abort on the console. If the
1115 * keyboard is hotplugged after boot, check to see if
1116 * the keyboard is the console input. If it is
1117 * enable abort on it.
1118 */
1119 if (input_type == CONSOLE_LOCAL)
1120 (void) consconfig_kbd_abort_enable(new_lh);
1121 }
1122
1123 /*
1124 * consconfig_relink_conskbd:
1125 * If new_lh is not NULL it should represent a driver with a
1126 * keyboard module pushed on top of it. The driver is then linked
1127 * underneath conskbd. the resulting stream will be
1128 * wc->conskbd->"new_lh driver".
1129 *
1130 * If new_lh is NULL, then an unlink operation is done on conskbd
1131 * that attempts to unlink the stream specified by *muxid.
1132 * the resulting stream will be wc->conskbd.
1133 */
1134 static int
1135 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1136 {
1137 int err, rval;
1138 int conskbd_relink = 0;
1139
1140 ASSERT(muxid != NULL);
1141
1142 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: "
1143 "conskbd_lh = %p, new_lh = %p, muxid = %x\n",
1144 sp->conskbd_lh, new_lh, *muxid);
1145
1146 /*
1147 * If conskbd is linked under wc then temporarily unlink it
1148 * from under wc so that the new_lh stream may be linked under
1149 * conskbd. This has to be done because streams are built bottom
1150 * up and linking a stream under conskbd isn't allowed when
1151 * conskbd is linked under wc.
1152 */
1153 if (sp->conskbd_muxid != -1) {
1154 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n");
1155 conskbd_relink = 1;
1156 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1157 if (err) {
1158 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1159 "wc unlink failed, error %d", err);
1160 return (err);
1161 }
1162 }
1163
1164 if (new_lh != NULL) {
1165 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n");
1166
1167 /* Link the stream represented by new_lh under conskbd */
1168 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh,
1169 FKIOCTL, kcred, muxid);
1170 if (err != 0) {
1171 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1172 "conskbd link failed, error %d", err);
1173 goto relink_failed;
1174 }
1175 } else {
1176 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n");
1177
1178 /*
1179 * This will cause the keyboard driver to be closed,
1180 * all modules to be popped, and the keyboard vnode released.
1181 */
1182 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid,
1183 FKIOCTL, kcred, &rval);
1184 if (err != 0) {
1185 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1186 "conskbd unlink failed, error %d", err);
1187 goto relink_failed;
1188 } else {
1189 *muxid = -1;
1190 }
1191
1192 consconfig_check_phys_kbd(sp);
1193 }
1194
1195 if (!conskbd_relink)
1196 return (err);
1197
1198 /*
1199 * Link consbkd back under wc.
1200 *
1201 * The act of linking conskbd back under wc will cause wc
1202 * to query the lower lower layers about their polled I/O
1203 * routines. This time the request will succeed because there
1204 * is a physical keyboard linked under conskbd.
1205 */
1206 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1207 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1208 if (err) {
1209 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1210 "wc link failed, error %d", err);
1211 }
1212 return (err);
1213
1214 relink_failed:
1215 if (!conskbd_relink)
1216 return (err);
1217
1218 /* something went wrong, try to reconnect conskbd back under wc */
1219 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1220 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1221 return (err);
1222 }
1223
1224 /*
1225 * consconfig_relink_consms:
1226 * If new_lh is not NULL it should represent a driver with a
1227 * mouse module pushed on top of it. The driver is then linked
1228 * underneath consms. the resulting stream will be
1229 * consms->"new_lh driver".
1230 *
1231 * If new_lh is NULL, then an unlink operation is done on consms
1232 * that attempts to unlink the stream specified by *muxid.
1233 */
1234 static int
1235 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1236 {
1237 int err, rval;
1238
1239 DPRINTF(DPRINT_L0, "consconfig_relink_consms: "
1240 "consms_lh = %p, new_lh = %p, muxid = %x\n",
1241 (void *)sp->consms_lh, (void *)new_lh, *muxid);
1242
1243 if (new_lh != NULL) {
1244 DPRINTF(DPRINT_L0, "linking mouse under consms\n");
1245
1246 /* Link ms/usbms stream underneath consms multiplexor. */
1247 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh,
1248 FKIOCTL, kcred, muxid);
1249 if (err != 0) {
1250 cmn_err(CE_WARN, "consconfig_relink_consms: "
1251 "mouse link failed, error %d", err);
1252 }
1253 } else {
1254 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n");
1255
1256 /* Tear down the mouse stream */
1257 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid,
1258 FKIOCTL, kcred, &rval);
1259 if (err != 0) {
1260 cmn_err(CE_WARN, "consconfig_relink_consms: "
1261 "mouse unlink failed, error %d", err);
1262 } else {
1263 *muxid = -1;
1264 }
1265 }
1266 return (err);
1267 }
1268
1269 static int
1270 cons_get_input_type(cons_state_t *sp)
1271 {
1272 int type;
1273
1274 /*
1275 * Now that we know what all the devices are, we can figure out
1276 * what kind of console we have.
1277 */
1278 if (sp->cons_stdin_is_kbd) {
1279 /* Stdin is from the system keyboard */
1280 type = CONSOLE_LOCAL;
1281 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) {
1282 /*
1283 * A reliable indicator that we are doing a remote console
1284 * is that stdin and stdout are the same.
1285 * This is probably a tip line.
1286 */
1287 type = CONSOLE_TIP;
1288 } else {
1289 type = CONSOLE_SERIAL_KEYBOARD;
1290 }
1291
1292 return (type);
1293 }
1294
1295 static void
1296 consconfig_init_input(cons_state_t *sp)
1297 {
1298 ldi_handle_t new_lh;
1299 dev_t cons_final_dev;
1300 int err;
1301
1302 cons_final_dev = NODEV;
1303
1304 switch (sp->cons_input_type) {
1305 case CONSOLE_LOCAL:
1306 DPRINTF(DPRINT_L0, "stdin is keyboard\n");
1307
1308 /*
1309 * The machine is allowed to boot without a keyboard.
1310 * If a user attaches a keyboard later, the keyboard
1311 * will be hooked into the console stream with the dacf
1312 * functions.
1313 *
1314 * The only drivers that look at kbbdev are the
1315 * serial drivers, which looks at kbdev to see if
1316 * they should allow abort on a break. In the absence
1317 * of keyboard, the serial drivers won't be attached
1318 * for any keyboard instance.
1319 */
1320 if (kbddev == NODEV) {
1321 /*
1322 * If there is a problem with the keyboard
1323 * during the driver loading, then the polled
1324 * input won't get setup properly if polled
1325 * input is needed. This means that if the
1326 * keyboard is hotplugged, the keyboard would
1327 * work normally, but going down to the
1328 * debugger would not work if polled input is
1329 * required. This field is set here. The next
1330 * time a keyboard is plugged in, the field is
1331 * checked in order to give the next keyboard a
1332 * chance at being registered for console
1333 * input.
1334 *
1335 * Although this code will rarely be needed,
1336 * USB keyboards can be flaky, so this code
1337 * will be useful on the occasion that the
1338 * keyboard doesn't enumerate when the drivers
1339 * are loaded.
1340 */
1341 DPRINTF(DPRINT_L2, "Error with console keyboard\n");
1342 sp->cons_keyboard_problem = B_TRUE;
1343 }
1344 stdindev = kbddev;
1345 cons_final_dev = sp->cons_wc_vp->v_rdev;
1346 break;
1347
1348 case CONSOLE_TIP:
1349 DPRINTF(DPRINT_L0, "console input is tty (%s)\n",
1350 sp->cons_stdin_path);
1351
1352 /*
1353 * Console device drivers must be able to output
1354 * after being closed.
1355 */
1356 rconsvp = i_consconfig_createvp(sp->cons_stdin_path);
1357 if (rconsvp == NULL) {
1358 panic("consconfig_init_input: "
1359 "unable to find stdin device (%s)",
1360 sp->cons_stdin_path);
1361 /*NOTREACHED*/
1362 }
1363 rconsdev = rconsvp->v_rdev;
1364
1365 ASSERT(rconsdev == stdindev);
1366
1367 cons_final_dev = rconsdev;
1368 break;
1369
1370 case CONSOLE_SERIAL_KEYBOARD:
1371 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n");
1372
1373 /*
1374 * Non-keyboard input device, but not rconsdev.
1375 * This is known as the "serial keyboard" case - the
1376 * most likely use is someone has a keyboard attached
1377 * to a serial port (tip) and still has output on a
1378 * framebuffer.
1379 *
1380 * In this case, the serial driver must be linked
1381 * directly beneath wc. Since conskbd was linked
1382 * underneath wc above, first we unlink conskbd.
1383 */
1384 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1385 sp->conskbd_muxid = -1;
1386
1387 /*
1388 * Open the serial keyboard, configure it,
1389 * and link it underneath wc.
1390 */
1391 err = ldi_open_by_name(sp->cons_stdin_path,
1392 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li);
1393 if (err == 0) {
1394 struct termios termios;
1395 int rval;
1396 int stdin_muxid;
1397
1398 consconfig_prepare_dev(new_lh,
1399 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD);
1400
1401 /* Re-set baud rate */
1402 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios,
1403 FKIOCTL, kcred, &rval);
1404
1405 /* Set baud rate */
1406 if (consconfig_setmodes(stdindev, &termios) == 0) {
1407 err = ldi_ioctl(new_lh,
1408 TCSETSF, (intptr_t)&termios,
1409 FKIOCTL, kcred, &rval);
1410 if (err) {
1411 cmn_err(CE_WARN,
1412 "consconfig_init_input: "
1413 "TCSETSF failed, error %d", err);
1414 }
1415 }
1416
1417 /*
1418 * Now link the serial keyboard direcly under wc
1419 * we don't save the returned muxid because we
1420 * don't support changing/hotplugging the console
1421 * keyboard when it is a serial keyboard.
1422 */
1423 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid);
1424
1425 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1426 }
1427
1428 cons_final_dev = sp->cons_wc_vp->v_rdev;
1429 break;
1430
1431 default:
1432 panic("consconfig_init_input: "
1433 "unsupported console input/output combination");
1434 /*NOTREACHED*/
1435 }
1436
1437 /*
1438 * Use the redirection device/workstation console pair as the "real"
1439 * console if the latter hasn't already been set.
1440 * The workstation console driver needs to see rwsconsvp, but
1441 * all other access should be through the redirecting driver.
1442 */
1443 if (rconsvp == NULL) {
1444 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n");
1445 rconsvp = wsconsvp;
1446 rconsdev = wsconsvp->v_rdev;
1447 }
1448
1449 ASSERT(cons_final_dev != NODEV);
1450
1451 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
1452 kcred, &new_lh, sp->cons_li);
1453 if (err) {
1454 panic("consconfig_init_input: "
1455 "unable to open console device");
1456 /*NOTREACHED*/
1457 }
1458
1459 /* Enable abort on the console */
1460 (void) consconfig_kbd_abort_enable(new_lh);
1461
1462 /* Now we must close it to make console logins happy */
1463 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1464
1465 /* Set up polled input if it is supported by the console device */
1466 if (plat_use_polled_debug()) {
1467 /*
1468 * In the debug case, register the keyboard polled entry
1469 * points, but don't throw the switch in the debugger. This
1470 * allows the polled entry points to be checked by hand
1471 */
1472 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1473 } else {
1474 consconfig_setup_polledio(sp, cons_final_dev);
1475 }
1476
1477 kadb_uses_kernel();
1478 }
1479
1480 /*
1481 * This function kicks off the console configuration.
1482 * Configure keyboard and mouse. Main entry here.
1483 */
1484 void
1485 dynamic_console_config(void)
1486 {
1487 /* initialize space.c globals */
1488 stdindev = NODEV;
1489 mousedev = NODEV;
1490 kbddev = NODEV;
1491 fbdev = NODEV;
1492 fbvp = NULL;
1493 fbdip = NULL;
1494 wsconsvp = NULL;
1495 rwsconsvp = NULL;
1496 rwsconsdev = NODEV;
1497 rconsvp = NULL;
1498 rconsdev = NODEV;
1499
1500 /* Initialize cons_state_t structure and console device paths */
1501 consconfig_sp = consconfig_state_init();
1502 ASSERT(consconfig_sp);
1503
1504 /* Build upper layer of console stream */
1505 cons_build_upper_layer(consconfig_sp);
1506
1507 /*
1508 * Load keyboard/mouse drivers. The dacf routines will
1509 * plumb the devices into the console stream
1510 *
1511 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard
1512 * and mouse drivers are linked into their respective console
1513 * streams if the pathnames are valid.
1514 */
1515 consconfig_load_drivers(consconfig_sp);
1516 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp);
1517
1518 /*
1519 * This is legacy special case code for the "cool" virtual console
1520 * for the Starfire project. Starfire has a dummy "ssp-serial"
1521 * node in the OBP device tree and cvc is a pseudo driver.
1522 */
1523 if (consconfig_sp->cons_stdout_path != NULL && stdindev == NODEV &&
1524 strstr(consconfig_sp->cons_stdout_path, "ssp-serial")) {
1525 /*
1526 * Setup the virtual console driver for Starfire
1527 * Note that console I/O will still go through prom for now
1528 * (notice we don't open the driver here). The cvc driver
1529 * will be activated when /dev/console is opened by init.
1530 * During that time, a cvcd daemon will be started that
1531 * will open the cvcredirection driver to facilitate
1532 * the redirection of console I/O from cvc to cvcd.
1533 */
1534 rconsvp = i_consconfig_createvp(CVC_PATH);
1535 if (rconsvp == NULL)
1536 goto done;
1537 rconsdev = rconsvp->v_rdev;
1538 goto done;
1539 }
1540
1541 rwsconsvp = consconfig_sp->cons_wc_vp;
1542 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev;
1543
1544
1545 /* initialize framebuffer, console input, and redirection device */
1546 consconfig_init_framebuffer(consconfig_sp);
1547 consconfig_init_input(consconfig_sp);
1548
1549 #if !defined(__x86)
1550 /* initialize virtual console vp for logging if needed */
1551 consconfig_virtual_console_vp(consconfig_sp);
1552 #endif
1553
1554 DPRINTF(DPRINT_L0,
1555 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n",
1556 mousedev, kbddev, fbdev, rconsdev);
1557
1558 flush_deferred_console_buf();
1559 done:
1560 consconfig_sp->cons_initialized = B_TRUE;
1561 }
1562
1563
1564 /*
1565 * Start of DACF interfaces
1566 */
1567
1568 /*
1569 * Do the real job for keyboard/mouse auto-configuration.
1570 */
1571 static int
1572 do_config(cons_state_t *sp, cons_prop_t *prop)
1573 {
1574 ldi_handle_t lh;
1575 dev_t dev;
1576 int error;
1577
1578 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1579
1580 dev = prop->cp_dev;
1581 error = ldi_open_by_dev(&dev, OTYP_CHR,
1582 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li);
1583 if (error) {
1584 return (DACF_FAILURE);
1585 }
1586 ASSERT(dev == prop->cp_dev); /* clone not supported */
1587
1588 /*
1589 * Prepare the new keyboard/mouse driver
1590 * to be linked under conskbd/consms.
1591 */
1592 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN,
1593 sp->cons_input_type, prop->cp_type);
1594
1595 if (prop->cp_type == CONS_KBD) {
1596 /*
1597 * Tell the physical keyboard driver to send
1598 * the abort sequences up to the virtual keyboard
1599 * driver so that STOP and A (or F1 and A)
1600 * can be applied to different keyboards.
1601 */
1602 (void) consconfig_kbd_abort_disable(lh);
1603
1604 /* Link the stream underneath conskbd */
1605 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid);
1606 } else {
1607 /* Link the stream underneath consms */
1608 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid);
1609 }
1610
1611 /*
1612 * At this point, the stream is:
1613 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"]
1614 * for mouse: consms->["module_name"->]"mouse_avp driver"
1615 */
1616
1617 /* Close the driver stream, it will stay linked under conskbd */
1618 (void) ldi_close(lh, FREAD|FWRITE, kcred);
1619
1620 if (error) {
1621 return (DACF_FAILURE);
1622 }
1623
1624 return (DACF_SUCCESS);
1625 }
1626
1627 static int
1628 do_unconfig(cons_state_t *sp, cons_prop_t *prop)
1629 {
1630 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1631
1632 if (prop->cp_type == CONS_KBD)
1633 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid));
1634 else
1635 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid));
1636 }
1637
1638 static int
1639 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type)
1640 {
1641 major_t major;
1642 minor_t minor;
1643 dev_t dev;
1644 dev_info_t *dip;
1645 cons_state_t *sp;
1646 cons_prop_t *prop;
1647 const char *pushmod;
1648
1649 /*
1650 * Retrieve the state information
1651 * Some platforms may use the old-style "consconfig" to configure
1652 * console stream modules but may also support devices that happen
1653 * to match a rule in /etc/dacf.conf. This will cause a problem
1654 * since the console state structure will not be initialized.
1655 * In that case, these entry points should silently fail and
1656 * permit console to be plumbed later in boot.
1657 */
1658 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1659 return (DACF_FAILURE);
1660
1661 dip = dacf_devinfo_node(minor_hdl);
1662 major = ddi_driver_major(dip);
1663 ASSERT(major != DDI_MAJOR_T_NONE);
1664 minor = dacf_minor_number(minor_hdl);
1665 dev = makedevice(major, minor);
1666 ASSERT(dev != NODEV);
1667
1668 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n",
1669 (char *)dacf_driver_name(minor_hdl), dev, major);
1670
1671 /* Access to the global variables is synchronized */
1672 mutex_enter(&sp->cons_lock);
1673
1674 /*
1675 * Check if the keyboard/mouse has already configured.
1676 */
1677 if (consconfig_find_dev(sp, dev) != NULL) {
1678 mutex_exit(&sp->cons_lock);
1679 return (DACF_SUCCESS);
1680 }
1681
1682 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP);
1683
1684 /* Config the new keyboard/mouse device */
1685 prop->cp_dev = dev;
1686
1687 pushmod = dacf_get_arg(arg_hdl, "pushmod");
1688 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP);
1689
1690 prop->cp_type = type;
1691 if (do_config(sp, prop) != DACF_SUCCESS) {
1692 /*
1693 * The keyboard/mouse node failed to open.
1694 * Set the major and minor numbers to 0 so
1695 * kb_unconfig/ms_unconfig won't unconfigure
1696 * this node if it is detached.
1697 */
1698 mutex_exit(&sp->cons_lock);
1699 consconfig_free_prop(prop);
1700 return (DACF_FAILURE);
1701 }
1702
1703 consconfig_add_dev(sp, prop);
1704
1705 /*
1706 * See if there was a problem with the console keyboard during boot.
1707 * If so, try to register polled input for this keyboard.
1708 */
1709 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) {
1710 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1711 sp->cons_keyboard_problem = B_FALSE;
1712 }
1713
1714 /* Prevent autodetach due to memory pressure */
1715 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
1716
1717 mutex_exit(&sp->cons_lock);
1718
1719 return (DACF_SUCCESS);
1720 }
1721
1722 static int
1723 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl)
1724 {
1725 _NOTE(ARGUNUSED(arg_hdl))
1726
1727 major_t major;
1728 minor_t minor;
1729 dev_t dev;
1730 dev_info_t *dip;
1731 cons_state_t *sp;
1732 cons_prop_t *prop;
1733
1734 /*
1735 * Retrieve the state information
1736 * So if there isn't a state available, then this entry point just
1737 * returns. See note in kb_config().
1738 */
1739 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1740 return (DACF_SUCCESS);
1741
1742 dip = dacf_devinfo_node(minor_hdl);
1743 major = ddi_driver_major(dip);
1744 ASSERT(major != DDI_MAJOR_T_NONE);
1745 minor = dacf_minor_number(minor_hdl);
1746 dev = makedevice(major, minor);
1747 ASSERT(dev != NODEV);
1748
1749 /*
1750 * Check if the keyboard/mouse that is being detached
1751 * is the console keyboard/mouse or not.
1752 */
1753 mutex_enter(&sp->cons_lock);
1754 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1755 mutex_exit(&sp->cons_lock);
1756 return (DACF_SUCCESS);
1757 }
1758
1759 /*
1760 * This dev may be opened physically and then hotplugged out.
1761 */
1762 if (prop->cp_muxid != -1) {
1763 (void) do_unconfig(sp, prop);
1764 consconfig_rem_dev(sp, dev);
1765 }
1766
1767 mutex_exit(&sp->cons_lock);
1768
1769 return (DACF_SUCCESS);
1770 }
1771
1772 /*
1773 * This is the post-attach / pre-detach action function for the keyboard
1774 * and mouse. This function is associated with a node type in /etc/dacf.conf.
1775 */
1776 static int
1777 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1778 {
1779 _NOTE(ARGUNUSED(flags))
1780
1781 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD));
1782 }
1783
1784 static int
1785 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1786 {
1787 _NOTE(ARGUNUSED(flags))
1788
1789 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS));
1790 }
1791
1792 static int
1793 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1794 {
1795 _NOTE(ARGUNUSED(flags))
1796
1797 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1798 }
1799
1800 static int
1801 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1802 {
1803 _NOTE(ARGUNUSED(flags))
1804
1805 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1806 }
1807
1808 /*
1809 * consconfig_link and consconfig_unlink are provided to support
1810 * direct access to physical keyboard/mouse underlying conskbd/
1811 * consms.
1812 * When the keyboard/mouse is opened physically via its device
1813 * file, it will be unlinked from the virtual one, and when it
1814 * is closed physically, it will be linked back under the virtual
1815 * one.
1816 */
1817 void
1818 consconfig_link(major_t major, minor_t minor)
1819 {
1820 char buf[MAXPATHLEN];
1821 dev_t dev;
1822 cons_state_t *sp;
1823 cons_prop_t *prop;
1824
1825 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1826 return;
1827
1828 dev = makedevice(major, minor);
1829 ASSERT(dev != NODEV);
1830
1831 mutex_enter(&sp->cons_lock);
1832 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1833 mutex_exit(&sp->cons_lock);
1834 return;
1835 }
1836
1837 if (do_config(sp, prop) != DACF_SUCCESS) {
1838 (void) ddi_dev_pathname(dev, 0, buf);
1839 if (prop->cp_type == CONS_KBD)
1840 cmn_err(CE_WARN, "Failed to relink the keyboard "
1841 "(%s) underneath virtual keyboard", buf);
1842 else
1843 cmn_err(CE_WARN, "Failed to relink the mouse "
1844 "(%s) underneath virtual mouse", buf);
1845 consconfig_rem_dev(sp, dev);
1846 }
1847
1848 mutex_exit(&sp->cons_lock);
1849 }
1850
1851
1852 int
1853 consconfig_unlink(major_t major, minor_t minor)
1854 {
1855 dev_t dev;
1856 cons_state_t *sp;
1857 cons_prop_t *prop;
1858 int error;
1859
1860 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1861 return (DACF_SUCCESS);
1862
1863 dev = makedevice(major, minor);
1864 ASSERT(dev != NODEV);
1865
1866 mutex_enter(&sp->cons_lock);
1867 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1868 mutex_exit(&sp->cons_lock);
1869 return (DACF_FAILURE);
1870 }
1871
1872 error = do_unconfig(sp, prop);
1873
1874 /*
1875 * Keep this dev on the list, for this dev is still online.
1876 */
1877 mutex_exit(&sp->cons_lock);
1878
1879 return (error);
1880 }
1881
1882 /*
1883 * Routine to set baud rate, bits-per-char, parity and stop bits
1884 * on the console line when necessary.
1885 */
1886 static int
1887 consconfig_setmodes(dev_t dev, struct termios *termiosp)
1888 {
1889 char buf[MAXPATHLEN];
1890 int len = MAXPATHLEN;
1891 char name[16];
1892 int ppos, i;
1893 char *path;
1894 dev_t tdev;
1895
1896 /*
1897 * First, search for a devalias which matches this dev_t.
1898 * Try all of ttya through ttyz until no such alias
1899 */
1900 (void) strcpy(name, "ttya");
1901 for (i = 0; i < ('z'-'a'); i++) {
1902 name[3] = 'a' + i; /* increment device name */
1903 path = get_alias(name, buf);
1904 if (path == NULL)
1905 return (1);
1906
1907 tdev = ddi_pathname_to_dev_t(path);
1908 if (tdev == dev)
1909 break; /* Exit loop if found */
1910 }
1911
1912 if (i >= ('z'-'a'))
1913 return (1); /* If we didn't find it, return */
1914
1915 /*
1916 * Now that we know which "tty" this corresponds to, retrieve
1917 * the "ttya-mode" options property, which tells us how to configure
1918 * the line.
1919 */
1920 (void) strcpy(name, "ttya-mode"); /* name of option we want */
1921 name[3] = 'a' + i; /* Adjust to correct line */
1922
1923 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name,
1924 buf, &len) != DDI_PROP_SUCCESS)
1925 return (1); /* if no such option, just return */
1926
1927 /*
1928 * The IEEE 1275 standard specifies that /aliases string property
1929 * values should be null-terminated. Unfortunately the reality
1930 * is that most aren't and the OBP can't easily be modified to
1931 * add null termination to these strings. So we'll add the
1932 * null termination here. If the string already contains a
1933 * null termination character then that's ok too because we'll
1934 * just be adding a second one.
1935 */
1936 buf[len] = '\0';
1937
1938 /* Clear out options we will be setting */
1939 termiosp->c_cflag &=
1940 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB);
1941
1942 /* Clear options which potentially conflict with new settings */
1943 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT);
1944
1945 /*
1946 * Now, parse the string. Wish I could use sscanf().
1947 * Format 9600,8,n,1,-
1948 * baud rate, bits-per-char, parity, stop-bits, ignored
1949 */
1950 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */
1951 if ((buf[ppos] == 0) || (buf[ppos] == ','))
1952 break;
1953 }
1954
1955 if (buf[ppos] != ',') {
1956 cmn_err(CE_WARN, "consconfig_setmodes: "
1957 "invalid mode string %s", buf);
1958 return (1);
1959 }
1960
1961 for (i = 0; i < MAX_SPEEDS; i++) {
1962 if (strncmp(buf, speedtab[i].name, ppos) == 0)
1963 break;
1964 }
1965
1966 if (i >= MAX_SPEEDS) {
1967 cmn_err(CE_WARN,
1968 "consconfig_setmodes: unrecognized speed in %s", buf);
1969 return (1);
1970 }
1971
1972 /* Found the baud rate, set it */
1973 termiosp->c_cflag |= speedtab[i].code & CBAUD;
1974 if (speedtab[i].code > 16) /* cfsetospeed! */
1975 termiosp->c_cflag |= CBAUDEXT;
1976
1977 /* Set bits per character */
1978 switch (buf[ppos+1]) {
1979 case '8':
1980 termiosp->c_cflag |= CS8;
1981 break;
1982 case '7':
1983 termiosp->c_cflag |= CS7;
1984 break;
1985 default:
1986 cmn_err(CE_WARN,
1987 "consconfig_setmodes: illegal bits-per-char %s", buf);
1988 return (1);
1989 }
1990
1991 /* Set parity */
1992 switch (buf[ppos+3]) {
1993 case 'o':
1994 termiosp->c_cflag |= PARENB | PARODD;
1995 break;
1996 case 'e':
1997 termiosp->c_cflag |= PARENB; /* enabled, not odd */
1998 break;
1999 case 'n':
2000 break; /* not enabled. */
2001 default:
2002 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf);
2003 return (1);
2004 }
2005
2006 /* Set stop bits */
2007 switch (buf[ppos+5]) {
2008 case '1':
2009 break; /* No extra stop bit */
2010 case '2':
2011 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */
2012 break;
2013 default:
2014 cmn_err(CE_WARN, "consconfig_setmodes: "
2015 "illegal stop bits %s", buf);
2016 return (1);
2017 }
2018
2019 return (0);
2020 }
2021
2022 /*
2023 * Check to see if underlying keyboard devices are still online,
2024 * if any one is offline now, unlink it.
2025 */
2026 static void
2027 consconfig_check_phys_kbd(cons_state_t *sp)
2028 {
2029 ldi_handle_t kb_lh;
2030 cons_prop_t *prop;
2031 int error;
2032 int rval;
2033
2034 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2035 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1))
2036 continue;
2037
2038 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR,
2039 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li);
2040
2041 if (error) {
2042 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK,
2043 prop->cp_muxid, FKIOCTL, kcred, &rval);
2044 prop->cp_dev = NODEV;
2045 } else {
2046 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred);
2047 }
2048 }
2049
2050 /*
2051 * Remove all disconnected keyboards,
2052 * whose dev is turned into NODEV above.
2053 */
2054 consconfig_rem_dev(sp, NODEV);
2055 }
2056
2057 /*
2058 * Remove devices according to dev, which may be NODEV
2059 */
2060 static void
2061 consconfig_rem_dev(cons_state_t *sp, dev_t dev)
2062 {
2063 cons_prop_t *prop;
2064 cons_prop_t *prev_prop;
2065 cons_prop_t *tmp_prop;
2066 cons_prop_t *head_prop;
2067
2068 head_prop = NULL;
2069 prev_prop = NULL;
2070 for (prop = sp->cons_km_prop; prop != NULL; ) {
2071 if (prop->cp_dev == dev) {
2072 tmp_prop = prop->cp_next;
2073 consconfig_free_prop(prop);
2074 prop = tmp_prop;
2075 if (prev_prop)
2076 prev_prop->cp_next = prop;
2077 } else {
2078 if (head_prop == NULL)
2079 head_prop = prop;
2080 prev_prop = prop;
2081 prop = prop->cp_next;
2082 }
2083 }
2084 sp->cons_km_prop = head_prop;
2085 }
2086
2087 /*
2088 * Add a dev according to prop
2089 */
2090 static void
2091 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop)
2092 {
2093 prop->cp_next = sp->cons_km_prop;
2094 sp->cons_km_prop = prop;
2095 }
2096
2097 /*
2098 * Find a device from our list according to dev
2099 */
2100 static cons_prop_t *
2101 consconfig_find_dev(cons_state_t *sp, dev_t dev)
2102 {
2103 cons_prop_t *prop;
2104
2105 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2106 if (prop->cp_dev == dev)
2107 break;
2108 }
2109
2110 return (prop);
2111 }
2112
2113 /*
2114 * Free a cons prop associated with a keyboard or mouse
2115 */
2116 static void
2117 consconfig_free_prop(cons_prop_t *prop)
2118 {
2119 if (prop->cp_pushmod)
2120 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1);
2121 kmem_free(prop, sizeof (cons_prop_t));
2122 }
2123
2124 /*
2125 * The early boot code can't print to a usb serial device or the
2126 * graphical boot screen.
2127 *
2128 * The early boot messages are saved in a buffer at the address indicated
2129 * by "deferred-console-buf" This function flushes the message to the
2130 * current console now that it is set up.
2131 */
2132 static void
2133 flush_deferred_console_buf(void)
2134 {
2135 int rval;
2136 vnode_t *vp;
2137 uint_t defcons_buf;
2138 char *kc, *bc, *defcons_kern_buf;
2139
2140 /* defcons_buf is in low memory, so an int works here */
2141 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
2142 DDI_PROP_DONTPASS, "deferred-console-buf", 0);
2143
2144 if (defcons_buf == 0)
2145 return;
2146
2147 /*
2148 * After consconfig() and before userland opens /dev/sysmsg,
2149 * console I/O is goes to polled I/O entry points.
2150 *
2151 * If usb-serial doesn't implement polled I/O, we need
2152 * to open /dev/console now to get kernel console I/O to work.
2153 * We also push ttcompat and ldterm explicitly to get the
2154 * correct output format (autopush isn't set up yet). We
2155 * ignore push errors because they are non-fatal.
2156 * Note that opening /dev/console causes rconsvp to be
2157 * opened as well.
2158 */
2159 if (cons_polledio == NULL) {
2160 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY,
2161 0, &vp, 0, 0) != 0)
2162 return;
2163
2164 if (rconsvp) {
2165 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2166 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval);
2167 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2168 (intptr_t)"ttcompat", FKIOCTL, K_TO_K,
2169 kcred, &rval);
2170 }
2171 }
2172
2173 /*
2174 * Copy message to a kernel buffer. Various kernel routines
2175 * expect buffer to be above kernelbase
2176 */
2177 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP);
2178 bc = (char *)(uintptr_t)defcons_buf;
2179 while (*kc++ = *bc++)
2180 ;
2181 console_printf("%s", defcons_kern_buf);
2182
2183 kmem_free(defcons_kern_buf, MMU_PAGESIZE);
2184 }
2185
2186 boolean_t
2187 consconfig_console_is_tipline(void)
2188 {
2189 cons_state_t *sp;
2190
2191 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2192 return (B_FALSE);
2193
2194 if (sp->cons_input_type == CONSOLE_TIP)
2195 return (B_TRUE);
2196
2197 return (B_FALSE);
2198 }
2199
2200 boolean_t
2201 consconfig_dacf_initialized(void)
2202 {
2203 cons_state_t *sp;
2204
2205 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2206 return (B_FALSE);
2207
2208 return (sp->cons_initialized);
2209 }