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 return;
934 }
935 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
936
937 strioc.ic_cmd = WC_OPEN_FB;
938 strioc.ic_timout = INFTIM;
939 strioc.ic_len = strlen(sp->cons_fb_path) + 1;
940 strioc.ic_dp = sp->cons_fb_path;
941
942 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc,
943 FKIOCTL, kcred, &rval) == 0)
944 consmode = CONS_KFB;
945 else
946 cmn_err(CE_WARN,
947 "consconfig: terminal emulator failed to initialize");
948 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
949 }
950
951 static void
952 consconfig_load_drivers(cons_state_t *sp)
953 {
954 /*
955 * Calling ddi_pathname_to_dev_t may cause the USB Host Controller
956 * drivers to be loaded. Here we make sure that EHCI is loaded
957 * earlier than {U, O}HCI. The order here is important. As
958 * we have observed many systems on which hangs occur if the
959 * {U,O}HCI companion controllers take over control from the BIOS
960 * before EHCI does. These hangs are also caused by BIOSes leaving
961 * interrupt-on-port-change enabled in the ehci controller, so that
962 * when uhci/ohci reset themselves, it induces a port change on
963 * the ehci companion controller. Since there's no interrupt handler
964 * installed at the time, the moment that interrupt is unmasked, an
965 * interrupt storm will occur. All this is averted when ehci is
966 * loaded first. And now you know..... the REST of the story.
967 *
968 * Regardless of platform, ehci needs to initialize first to avoid
969 * unnecessary connects and disconnects on the companion controller
970 * when ehci sets up the routing.
971 *
972 * The same is generally true of xhci. Many platforms have routing
973 * between the xhci controller and the ehci controller. To avoid those
974 * same disconnects, we load xhci before ehci.
975 */
976 (void) ddi_hold_installed_driver(ddi_name_to_major("xhci"));
977 (void) ddi_hold_installed_driver(ddi_name_to_major("ehci"));
978 (void) ddi_hold_installed_driver(ddi_name_to_major("uhci"));
979 (void) ddi_hold_installed_driver(ddi_name_to_major("ohci"));
980
981 /*
982 * The attaching of the drivers will cause the creation of the
983 * keyboard and mouse minor nodes, which will in turn trigger the
984 * dacf framework to call the keyboard and mouse configuration
985 * tasks. See PSARC/1998/212 for more details about the dacf
986 * framework.
987 *
988 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1
989 * is kb/mouse. zs0 must be attached before zs1. The zs driver
990 * is written this way and the hardware may depend on this, too.
991 * It would be better to enforce this by attaching zs in sibling
992 * order with a driver property, such as ddi-attachall.
993 */
994 if (sp->cons_stdin_path != NULL)
995 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path);
996 if (stdindev == NODEV) {
997 DPRINTF(DPRINT_L0,
998 "!fail to attach stdin: %s\n", sp->cons_stdin_path);
999 }
1000 if (sp->cons_stdout_path != NULL)
1001 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path);
1002 if (sp->cons_keyboard_path != NULL)
1003 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path);
1004 if (sp->cons_mouse_path != NULL)
1005 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path);
1006 if (sp->cons_diag_path != NULL)
1007 diagdev = ddi_pathname_to_dev_t(sp->cons_diag_path);
1008
1009 /*
1010 * On x86, make sure the fb driver is loaded even if we don't use it
1011 * for the console. This will ensure that we create a /dev/fb link
1012 * which is required to start Xorg.
1013 */
1014 #if defined(__x86)
1015 if (sp->cons_fb_path != NULL)
1016 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path);
1017 #endif
1018
1019 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, "
1020 "mousedev %lx diagdev %lx\n", stdindev, stdoutdev, kbddev,
1021 mousedev, diagdev);
1022 }
1023
1024 #if !defined(__x86)
1025 void
1026 consconfig_virtual_console_vp(cons_state_t *sp)
1027 {
1028 char *virtual_cons_path;
1029
1030 if (plat_virtual_console_path(&virtual_cons_path) < 0)
1031 return;
1032
1033 DPRINTF(DPRINT_L0, "consconfig_virtual_console_vp: "
1034 "virtual console device path %s\n", virtual_cons_path);
1035
1036 ASSERT(sp->cons_stdout_path != NULL);
1037 if (strcmp(virtual_cons_path, sp->cons_stdout_path) == 0) {
1038 /* virtual console already in use */
1039 return;
1040 }
1041
1042 vsconsvp = i_consconfig_createvp(virtual_cons_path);
1043 if (vsconsvp == NULL) {
1044 cmn_err(CE_WARN, "consconfig_virtual_console_vp: "
1045 "unable to find serial virtual console device %s",
1046 virtual_cons_path);
1047 return;
1048 }
1049
1050 (void) e_ddi_hold_devi_by_dev(vsconsvp->v_rdev, 0);
1051 }
1052 #endif
1053
1054 static void
1055 consconfig_init_framebuffer(cons_state_t *sp)
1056 {
1057 if (!sp->cons_stdout_is_fb)
1058 return;
1059
1060 DPRINTF(DPRINT_L0, "stdout is framebuffer\n");
1061 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0);
1062
1063 /*
1064 * Console output is a framebuffer.
1065 * Find the framebuffer driver if we can, and make
1066 * ourselves a shadow vnode to track it with.
1067 */
1068 fbdev = stdoutdev;
1069 if (fbdev == NODEV) {
1070 DPRINTF(DPRINT_L3,
1071 "Can't find driver for console framebuffer\n");
1072 } else {
1073 /* stdoutdev is valid, of fbvp should exist */
1074 fbvp = i_consconfig_createvp(sp->cons_stdout_path);
1075 if (fbvp == NULL) {
1076 panic("consconfig_init_framebuffer: "
1077 "unable to find frame buffer device");
1078 /*NOTREACHED*/
1079 }
1080 ASSERT(fbvp->v_rdev == fbdev);
1081
1082 /* console device is never released */
1083 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0);
1084 }
1085 pm_cfb_setup(sp->cons_stdout_path);
1086 }
1087
1088 /*
1089 * consconfig_prepare_dev:
1090 * Flush the stream, push "pushmod" onto the stream.
1091 * for keyboard, issue the KIOCTRANSABLE ioctl, and
1092 * possible enable abort.
1093 */
1094 static void
1095 consconfig_prepare_dev(
1096 ldi_handle_t new_lh,
1097 const char *pushmod,
1098 int kbdtranslatable,
1099 int input_type,
1100 int dev_type)
1101 {
1102 int err, rval;
1103
1104 /* send a flush down the stream to the keyboard driver */
1105 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW,
1106 FKIOCTL, kcred, &rval);
1107
1108 if (pushmod) {
1109 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod,
1110 FKIOCTL, kcred, &rval);
1111 if (err) {
1112 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1113 "can't push streams module \"%s\", error %d",
1114 pushmod, err);
1115 }
1116 }
1117
1118 if (dev_type == CONS_MS)
1119 return;
1120
1121 ASSERT(dev_type == CONS_KBD);
1122
1123 err = ldi_ioctl(new_lh, KIOCTRANSABLE,
1124 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval);
1125 if (err) {
1126 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1127 "KIOCTRANSABLE failed, error: %d", err);
1128 }
1129
1130 /*
1131 * During boot, dynamic_console_config() will call the
1132 * function to enable abort on the console. If the
1133 * keyboard is hotplugged after boot, check to see if
1134 * the keyboard is the console input. If it is
1135 * enable abort on it.
1136 */
1137 if (input_type == CONSOLE_LOCAL)
1138 (void) consconfig_kbd_abort_enable(new_lh);
1139 }
1140
1141 /*
1142 * consconfig_relink_conskbd:
1143 * If new_lh is not NULL it should represent a driver with a
1144 * keyboard module pushed on top of it. The driver is then linked
1145 * underneath conskbd. the resulting stream will be
1146 * wc->conskbd->"new_lh driver".
1147 *
1148 * If new_lh is NULL, then an unlink operation is done on conskbd
1149 * that attempts to unlink the stream specified by *muxid.
1150 * the resulting stream will be wc->conskbd.
1151 */
1152 static int
1153 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1154 {
1155 int err, rval;
1156 int conskbd_relink = 0;
1157
1158 ASSERT(muxid != NULL);
1159
1160 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: "
1161 "conskbd_lh = %p, new_lh = %p, muxid = %x\n",
1162 sp->conskbd_lh, new_lh, *muxid);
1163
1164 /*
1165 * If conskbd is linked under wc then temporarily unlink it
1166 * from under wc so that the new_lh stream may be linked under
1167 * conskbd. This has to be done because streams are built bottom
1168 * up and linking a stream under conskbd isn't allowed when
1169 * conskbd is linked under wc.
1170 */
1171 if (sp->conskbd_muxid != -1) {
1172 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n");
1173 conskbd_relink = 1;
1174 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1175 if (err) {
1176 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1177 "wc unlink failed, error %d", err);
1178 return (err);
1179 }
1180 }
1181
1182 if (new_lh != NULL) {
1183 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n");
1184
1185 /* Link the stream represented by new_lh under conskbd */
1186 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh,
1187 FKIOCTL, kcred, muxid);
1188 if (err != 0) {
1189 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1190 "conskbd link failed, error %d", err);
1191 goto relink_failed;
1192 }
1193 } else {
1194 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n");
1195
1196 /*
1197 * This will cause the keyboard driver to be closed,
1198 * all modules to be popped, and the keyboard vnode released.
1199 */
1200 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid,
1201 FKIOCTL, kcred, &rval);
1202 if (err != 0) {
1203 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1204 "conskbd unlink failed, error %d", err);
1205 goto relink_failed;
1206 } else {
1207 *muxid = -1;
1208 }
1209
1210 consconfig_check_phys_kbd(sp);
1211 }
1212
1213 if (!conskbd_relink)
1214 return (err);
1215
1216 /*
1217 * Link consbkd back under wc.
1218 *
1219 * The act of linking conskbd back under wc will cause wc
1220 * to query the lower lower layers about their polled I/O
1221 * routines. This time the request will succeed because there
1222 * is a physical keyboard linked under conskbd.
1223 */
1224 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1225 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1226 if (err) {
1227 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1228 "wc link failed, error %d", err);
1229 }
1230 return (err);
1231
1232 relink_failed:
1233 if (!conskbd_relink)
1234 return (err);
1235
1236 /* something went wrong, try to reconnect conskbd back under wc */
1237 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1238 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1239 return (err);
1240 }
1241
1242 /*
1243 * consconfig_relink_consms:
1244 * If new_lh is not NULL it should represent a driver with a
1245 * mouse module pushed on top of it. The driver is then linked
1246 * underneath consms. the resulting stream will be
1247 * consms->"new_lh driver".
1248 *
1249 * If new_lh is NULL, then an unlink operation is done on consms
1250 * that attempts to unlink the stream specified by *muxid.
1251 */
1252 static int
1253 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1254 {
1255 int err, rval;
1256
1257 DPRINTF(DPRINT_L0, "consconfig_relink_consms: "
1258 "consms_lh = %p, new_lh = %p, muxid = %x\n",
1259 (void *)sp->consms_lh, (void *)new_lh, *muxid);
1260
1261 if (new_lh != NULL) {
1262 DPRINTF(DPRINT_L0, "linking mouse under consms\n");
1263
1264 /* Link ms/usbms stream underneath consms multiplexor. */
1265 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh,
1266 FKIOCTL, kcred, muxid);
1267 if (err != 0) {
1268 cmn_err(CE_WARN, "consconfig_relink_consms: "
1269 "mouse link failed, error %d", err);
1270 }
1271 } else {
1272 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n");
1273
1274 /* Tear down the mouse stream */
1275 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid,
1276 FKIOCTL, kcred, &rval);
1277 if (err != 0) {
1278 cmn_err(CE_WARN, "consconfig_relink_consms: "
1279 "mouse unlink failed, error %d", err);
1280 } else {
1281 *muxid = -1;
1282 }
1283 }
1284 return (err);
1285 }
1286
1287 static int
1288 cons_get_input_type(cons_state_t *sp)
1289 {
1290 int type;
1291
1292 /*
1293 * Now that we know what all the devices are, we can figure out
1294 * what kind of console we have.
1295 */
1296 if (sp->cons_stdin_is_kbd) {
1297 /* Stdin is from the system keyboard */
1298 type = CONSOLE_LOCAL;
1299 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) {
1300 /*
1301 * A reliable indicator that we are doing a remote console
1302 * is that stdin and stdout are the same.
1303 * This is probably a tip line.
1304 */
1305 type = CONSOLE_TIP;
1306 } else {
1307 type = CONSOLE_SERIAL_KEYBOARD;
1308 }
1309
1310 return (type);
1311 }
1312
1313 static void
1314 consconfig_init_input(cons_state_t *sp)
1315 {
1316 ldi_handle_t new_lh;
1317 dev_t cons_final_dev;
1318 int err;
1319
1320 cons_final_dev = NODEV;
1321
1322 switch (sp->cons_input_type) {
1323 case CONSOLE_LOCAL:
1324 DPRINTF(DPRINT_L0, "stdin is keyboard\n");
1325
1326 /*
1327 * The machine is allowed to boot without a keyboard.
1328 * If a user attaches a keyboard later, the keyboard
1329 * will be hooked into the console stream with the dacf
1330 * functions.
1331 *
1332 * The only drivers that look at kbbdev are the
1333 * serial drivers, which looks at kbdev to see if
1334 * they should allow abort on a break. In the absence
1335 * of keyboard, the serial drivers won't be attached
1336 * for any keyboard instance.
1337 */
1338 if (kbddev == NODEV) {
1339 /*
1340 * If there is a problem with the keyboard
1341 * during the driver loading, then the polled
1342 * input won't get setup properly if polled
1343 * input is needed. This means that if the
1344 * keyboard is hotplugged, the keyboard would
1345 * work normally, but going down to the
1346 * debugger would not work if polled input is
1347 * required. This field is set here. The next
1348 * time a keyboard is plugged in, the field is
1349 * checked in order to give the next keyboard a
1350 * chance at being registered for console
1351 * input.
1352 *
1353 * Although this code will rarely be needed,
1354 * USB keyboards can be flaky, so this code
1355 * will be useful on the occasion that the
1356 * keyboard doesn't enumerate when the drivers
1357 * are loaded.
1358 */
1359 DPRINTF(DPRINT_L2, "Error with console keyboard\n");
1360 sp->cons_keyboard_problem = B_TRUE;
1361 }
1362 stdindev = kbddev;
1363 cons_final_dev = sp->cons_wc_vp->v_rdev;
1364 break;
1365
1366 case CONSOLE_TIP:
1367 DPRINTF(DPRINT_L0, "console input is tty (%s)\n",
1368 sp->cons_stdin_path);
1369
1370 /*
1371 * Console device drivers must be able to output
1372 * after being closed.
1373 */
1374 rconsvp = i_consconfig_createvp(sp->cons_stdin_path);
1375 if (rconsvp == NULL) {
1376 panic("consconfig_init_input: "
1377 "unable to find stdin device (%s)",
1378 sp->cons_stdin_path);
1379 /*NOTREACHED*/
1380 }
1381 rconsdev = rconsvp->v_rdev;
1382
1383 ASSERT(rconsdev == stdindev);
1384
1385 cons_final_dev = rconsdev;
1386 break;
1387
1388 case CONSOLE_SERIAL_KEYBOARD:
1389 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n");
1390
1391 /*
1392 * Non-keyboard input device, but not rconsdev.
1393 * This is known as the "serial keyboard" case - the
1394 * most likely use is someone has a keyboard attached
1395 * to a serial port (tip) and still has output on a
1396 * framebuffer.
1397 *
1398 * In this case, the serial driver must be linked
1399 * directly beneath wc. Since conskbd was linked
1400 * underneath wc above, first we unlink conskbd.
1401 */
1402 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1403 sp->conskbd_muxid = -1;
1404
1405 /*
1406 * Open the serial keyboard, configure it,
1407 * and link it underneath wc.
1408 */
1409 err = ldi_open_by_name(sp->cons_stdin_path,
1410 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li);
1411 if (err == 0) {
1412 struct termios termios;
1413 int rval;
1414 int stdin_muxid;
1415
1416 consconfig_prepare_dev(new_lh,
1417 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD);
1418
1419 /* Re-set baud rate */
1420 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios,
1421 FKIOCTL, kcred, &rval);
1422
1423 /* Set baud rate */
1424 if (consconfig_setmodes(stdindev, &termios) == 0) {
1425 err = ldi_ioctl(new_lh,
1426 TCSETSF, (intptr_t)&termios,
1427 FKIOCTL, kcred, &rval);
1428 if (err) {
1429 cmn_err(CE_WARN,
1430 "consconfig_init_input: "
1431 "TCSETSF failed, error %d", err);
1432 }
1433 }
1434
1435 /*
1436 * Now link the serial keyboard direcly under wc
1437 * we don't save the returned muxid because we
1438 * don't support changing/hotplugging the console
1439 * keyboard when it is a serial keyboard.
1440 */
1441 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid);
1442
1443 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1444 }
1445
1446 cons_final_dev = sp->cons_wc_vp->v_rdev;
1447 break;
1448
1449 default:
1450 panic("consconfig_init_input: "
1451 "unsupported console input/output combination");
1452 /*NOTREACHED*/
1453 }
1454
1455 /*
1456 * Use the redirection device/workstation console pair as the "real"
1457 * console if the latter hasn't already been set.
1458 * The workstation console driver needs to see rwsconsvp, but
1459 * all other access should be through the redirecting driver.
1460 */
1461 if (rconsvp == NULL) {
1462 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n");
1463 rconsvp = wsconsvp;
1464 rconsdev = wsconsvp->v_rdev;
1465 }
1466
1467 ASSERT(cons_final_dev != NODEV);
1468
1469 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
1470 kcred, &new_lh, sp->cons_li);
1471 if (err) {
1472 panic("consconfig_init_input: "
1473 "unable to open console device");
1474 /*NOTREACHED*/
1475 }
1476
1477 /* Enable abort on the console */
1478 (void) consconfig_kbd_abort_enable(new_lh);
1479
1480 /* Now we must close it to make console logins happy */
1481 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1482
1483 /* Set up polled input if it is supported by the console device */
1484 if (plat_use_polled_debug()) {
1485 /*
1486 * In the debug case, register the keyboard polled entry
1487 * points, but don't throw the switch in the debugger. This
1488 * allows the polled entry points to be checked by hand
1489 */
1490 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1491 } else {
1492 if (diagdev != NODEV)
1493 consconfig_setup_polledio(sp, diagdev);
1494 else
1495 consconfig_setup_polledio(sp, cons_final_dev);
1496 }
1497
1498 kadb_uses_kernel();
1499 }
1500
1501 /*
1502 * This function kicks off the console configuration.
1503 * Configure keyboard and mouse. Main entry here.
1504 */
1505 void
1506 dynamic_console_config(void)
1507 {
1508 /* initialize space.c globals */
1509 stdindev = NODEV;
1510 mousedev = NODEV;
1511 kbddev = NODEV;
1512 fbdev = NODEV;
1513 diagdev = NODEV;
1514 fbvp = NULL;
1515 fbdip = NULL;
1516 wsconsvp = NULL;
1517 rwsconsvp = NULL;
1518 rwsconsdev = NODEV;
1519 rconsvp = NULL;
1520 rconsdev = NODEV;
1521
1522 /* Initialize cons_state_t structure and console device paths */
1523 consconfig_sp = consconfig_state_init();
1524 ASSERT(consconfig_sp);
1525
1526 /* Build upper layer of console stream */
1527 cons_build_upper_layer(consconfig_sp);
1528
1529 /*
1530 * Load keyboard/mouse drivers. The dacf routines will
1531 * plumb the devices into the console stream
1532 *
1533 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard
1534 * and mouse drivers are linked into their respective console
1535 * streams if the pathnames are valid.
1536 */
1537 consconfig_load_drivers(consconfig_sp);
1538 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp);
1539
1540 rwsconsvp = consconfig_sp->cons_wc_vp;
1541 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev;
1542
1543
1544 /* initialize framebuffer, console input, and redirection device */
1545 consconfig_init_framebuffer(consconfig_sp);
1546 consconfig_init_input(consconfig_sp);
1547
1548 #if !defined(__x86)
1549 /* initialize virtual console vp for logging if needed */
1550 consconfig_virtual_console_vp(consconfig_sp);
1551 #endif
1552
1553 DPRINTF(DPRINT_L0,
1554 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n",
1555 mousedev, kbddev, fbdev, rconsdev);
1556
1557 flush_deferred_console_buf();
1558 consconfig_sp->cons_initialized = B_TRUE;
1559 }
1560
1561
1562 /*
1563 * Start of DACF interfaces
1564 */
1565
1566 /*
1567 * Do the real job for keyboard/mouse auto-configuration.
1568 */
1569 static int
1570 do_config(cons_state_t *sp, cons_prop_t *prop)
1571 {
1572 ldi_handle_t lh;
1573 dev_t dev;
1574 int error;
1575
1576 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1577
1578 dev = prop->cp_dev;
1579 error = ldi_open_by_dev(&dev, OTYP_CHR,
1580 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li);
1581 if (error) {
1582 return (DACF_FAILURE);
1583 }
1584 ASSERT(dev == prop->cp_dev); /* clone not supported */
1585
1586 /*
1587 * Prepare the new keyboard/mouse driver
1588 * to be linked under conskbd/consms.
1589 */
1590 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN,
1591 sp->cons_input_type, prop->cp_type);
1592
1593 if (prop->cp_type == CONS_KBD) {
1594 /*
1595 * Tell the physical keyboard driver to send
1596 * the abort sequences up to the virtual keyboard
1597 * driver so that STOP and A (or F1 and A)
1598 * can be applied to different keyboards.
1599 */
1600 (void) consconfig_kbd_abort_disable(lh);
1601
1602 /* Link the stream underneath conskbd */
1603 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid);
1604 } else {
1605 /* Link the stream underneath consms */
1606 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid);
1607 }
1608
1609 /*
1610 * At this point, the stream is:
1611 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"]
1612 * for mouse: consms->["module_name"->]"mouse_avp driver"
1613 */
1614
1615 /* Close the driver stream, it will stay linked under conskbd */
1616 (void) ldi_close(lh, FREAD|FWRITE, kcred);
1617
1618 if (error) {
1619 return (DACF_FAILURE);
1620 }
1621
1622 return (DACF_SUCCESS);
1623 }
1624
1625 static int
1626 do_unconfig(cons_state_t *sp, cons_prop_t *prop)
1627 {
1628 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1629
1630 if (prop->cp_type == CONS_KBD)
1631 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid));
1632 else
1633 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid));
1634 }
1635
1636 static int
1637 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type)
1638 {
1639 major_t major;
1640 minor_t minor;
1641 dev_t dev;
1642 dev_info_t *dip;
1643 cons_state_t *sp;
1644 cons_prop_t *prop;
1645 const char *pushmod;
1646
1647 /*
1648 * Retrieve the state information
1649 * Some platforms may use the old-style "consconfig" to configure
1650 * console stream modules but may also support devices that happen
1651 * to match a rule in /etc/dacf.conf. This will cause a problem
1652 * since the console state structure will not be initialized.
1653 * In that case, these entry points should silently fail and
1654 * permit console to be plumbed later in boot.
1655 */
1656 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1657 return (DACF_FAILURE);
1658
1659 dip = dacf_devinfo_node(minor_hdl);
1660 major = ddi_driver_major(dip);
1661 ASSERT(major != DDI_MAJOR_T_NONE);
1662 minor = dacf_minor_number(minor_hdl);
1663 dev = makedevice(major, minor);
1664 ASSERT(dev != NODEV);
1665
1666 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n",
1667 (char *)dacf_driver_name(minor_hdl), dev, major);
1668
1669 /* Access to the global variables is synchronized */
1670 mutex_enter(&sp->cons_lock);
1671
1672 /*
1673 * Check if the keyboard/mouse has already configured.
1674 */
1675 if (consconfig_find_dev(sp, dev) != NULL) {
1676 mutex_exit(&sp->cons_lock);
1677 return (DACF_SUCCESS);
1678 }
1679
1680 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP);
1681
1682 /* Config the new keyboard/mouse device */
1683 prop->cp_dev = dev;
1684
1685 pushmod = dacf_get_arg(arg_hdl, "pushmod");
1686 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP);
1687
1688 prop->cp_type = type;
1689 if (do_config(sp, prop) != DACF_SUCCESS) {
1690 /*
1691 * The keyboard/mouse node failed to open.
1692 * Set the major and minor numbers to 0 so
1693 * kb_unconfig/ms_unconfig won't unconfigure
1694 * this node if it is detached.
1695 */
1696 mutex_exit(&sp->cons_lock);
1697 consconfig_free_prop(prop);
1698 return (DACF_FAILURE);
1699 }
1700
1701 consconfig_add_dev(sp, prop);
1702
1703 /*
1704 * See if there was a problem with the console keyboard during boot.
1705 * If so, try to register polled input for this keyboard.
1706 */
1707 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) {
1708 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1709 sp->cons_keyboard_problem = B_FALSE;
1710 }
1711
1712 /* Prevent autodetach due to memory pressure */
1713 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
1714
1715 mutex_exit(&sp->cons_lock);
1716
1717 return (DACF_SUCCESS);
1718 }
1719
1720 static int
1721 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl)
1722 {
1723 _NOTE(ARGUNUSED(arg_hdl))
1724
1725 major_t major;
1726 minor_t minor;
1727 dev_t dev;
1728 dev_info_t *dip;
1729 cons_state_t *sp;
1730 cons_prop_t *prop;
1731
1732 /*
1733 * Retrieve the state information
1734 * So if there isn't a state available, then this entry point just
1735 * returns. See note in kb_config().
1736 */
1737 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1738 return (DACF_SUCCESS);
1739
1740 dip = dacf_devinfo_node(minor_hdl);
1741 major = ddi_driver_major(dip);
1742 ASSERT(major != DDI_MAJOR_T_NONE);
1743 minor = dacf_minor_number(minor_hdl);
1744 dev = makedevice(major, minor);
1745 ASSERT(dev != NODEV);
1746
1747 /*
1748 * Check if the keyboard/mouse that is being detached
1749 * is the console keyboard/mouse or not.
1750 */
1751 mutex_enter(&sp->cons_lock);
1752 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1753 mutex_exit(&sp->cons_lock);
1754 return (DACF_SUCCESS);
1755 }
1756
1757 /*
1758 * This dev may be opened physically and then hotplugged out.
1759 */
1760 if (prop->cp_muxid != -1) {
1761 (void) do_unconfig(sp, prop);
1762 consconfig_rem_dev(sp, dev);
1763 }
1764
1765 mutex_exit(&sp->cons_lock);
1766
1767 return (DACF_SUCCESS);
1768 }
1769
1770 /*
1771 * This is the post-attach / pre-detach action function for the keyboard
1772 * and mouse. This function is associated with a node type in /etc/dacf.conf.
1773 */
1774 static int
1775 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1776 {
1777 _NOTE(ARGUNUSED(flags))
1778
1779 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD));
1780 }
1781
1782 static int
1783 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1784 {
1785 _NOTE(ARGUNUSED(flags))
1786
1787 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS));
1788 }
1789
1790 static int
1791 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1792 {
1793 _NOTE(ARGUNUSED(flags))
1794
1795 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1796 }
1797
1798 static int
1799 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1800 {
1801 _NOTE(ARGUNUSED(flags))
1802
1803 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1804 }
1805
1806 /*
1807 * consconfig_link and consconfig_unlink are provided to support
1808 * direct access to physical keyboard/mouse underlying conskbd/
1809 * consms.
1810 * When the keyboard/mouse is opened physically via its device
1811 * file, it will be unlinked from the virtual one, and when it
1812 * is closed physically, it will be linked back under the virtual
1813 * one.
1814 */
1815 void
1816 consconfig_link(major_t major, minor_t minor)
1817 {
1818 char buf[MAXPATHLEN];
1819 dev_t dev;
1820 cons_state_t *sp;
1821 cons_prop_t *prop;
1822
1823 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1824 return;
1825
1826 dev = makedevice(major, minor);
1827 ASSERT(dev != NODEV);
1828
1829 mutex_enter(&sp->cons_lock);
1830 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1831 mutex_exit(&sp->cons_lock);
1832 return;
1833 }
1834
1835 if (do_config(sp, prop) != DACF_SUCCESS) {
1836 (void) ddi_dev_pathname(dev, 0, buf);
1837 if (prop->cp_type == CONS_KBD)
1838 cmn_err(CE_WARN, "Failed to relink the keyboard "
1839 "(%s) underneath virtual keyboard", buf);
1840 else
1841 cmn_err(CE_WARN, "Failed to relink the mouse "
1842 "(%s) underneath virtual mouse", buf);
1843 consconfig_rem_dev(sp, dev);
1844 }
1845
1846 mutex_exit(&sp->cons_lock);
1847 }
1848
1849
1850 int
1851 consconfig_unlink(major_t major, minor_t minor)
1852 {
1853 dev_t dev;
1854 cons_state_t *sp;
1855 cons_prop_t *prop;
1856 int error;
1857
1858 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1859 return (DACF_SUCCESS);
1860
1861 dev = makedevice(major, minor);
1862 ASSERT(dev != NODEV);
1863
1864 mutex_enter(&sp->cons_lock);
1865 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1866 mutex_exit(&sp->cons_lock);
1867 return (DACF_FAILURE);
1868 }
1869
1870 error = do_unconfig(sp, prop);
1871
1872 /*
1873 * Keep this dev on the list, for this dev is still online.
1874 */
1875 mutex_exit(&sp->cons_lock);
1876
1877 return (error);
1878 }
1879
1880 /*
1881 * Routine to set baud rate, bits-per-char, parity and stop bits
1882 * on the console line when necessary.
1883 */
1884 static int
1885 consconfig_setmodes(dev_t dev, struct termios *termiosp)
1886 {
1887 char buf[MAXPATHLEN];
1888 int len = MAXPATHLEN;
1889 char name[16];
1890 int ppos, i;
1891 char *path;
1892 dev_t tdev;
1893
1894 /*
1895 * First, search for a devalias which matches this dev_t.
1896 * Try all of ttya through ttyz until no such alias
1897 */
1898 (void) strcpy(name, "ttya");
1899 for (i = 0; i < ('z'-'a'); i++) {
1900 name[3] = 'a' + i; /* increment device name */
1901 path = get_alias(name, buf);
1902 if (path == NULL)
1903 return (1);
1904
1905 tdev = ddi_pathname_to_dev_t(path);
1906 if (tdev == dev)
1907 break; /* Exit loop if found */
1908 }
1909
1910 if (i >= ('z'-'a'))
1911 return (1); /* If we didn't find it, return */
1912
1913 /*
1914 * Now that we know which "tty" this corresponds to, retrieve
1915 * the "ttya-mode" options property, which tells us how to configure
1916 * the line.
1917 */
1918 (void) strcpy(name, "ttya-mode"); /* name of option we want */
1919 name[3] = 'a' + i; /* Adjust to correct line */
1920
1921 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name,
1922 buf, &len) != DDI_PROP_SUCCESS)
1923 return (1); /* if no such option, just return */
1924
1925 /*
1926 * The IEEE 1275 standard specifies that /aliases string property
1927 * values should be null-terminated. Unfortunately the reality
1928 * is that most aren't and the OBP can't easily be modified to
1929 * add null termination to these strings. So we'll add the
1930 * null termination here. If the string already contains a
1931 * null termination character then that's ok too because we'll
1932 * just be adding a second one.
1933 */
1934 buf[len] = '\0';
1935
1936 /* Clear out options we will be setting */
1937 termiosp->c_cflag &=
1938 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB);
1939
1940 /* Clear options which potentially conflict with new settings */
1941 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT);
1942
1943 /*
1944 * Now, parse the string. Wish I could use sscanf().
1945 * Format 9600,8,n,1,-
1946 * baud rate, bits-per-char, parity, stop-bits, ignored
1947 */
1948 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */
1949 if ((buf[ppos] == 0) || (buf[ppos] == ','))
1950 break;
1951 }
1952
1953 if (buf[ppos] != ',') {
1954 cmn_err(CE_WARN, "consconfig_setmodes: "
1955 "invalid mode string %s", buf);
1956 return (1);
1957 }
1958
1959 for (i = 0; i < MAX_SPEEDS; i++) {
1960 if (strncmp(buf, speedtab[i].name, ppos) == 0)
1961 break;
1962 }
1963
1964 if (i >= MAX_SPEEDS) {
1965 cmn_err(CE_WARN,
1966 "consconfig_setmodes: unrecognized speed in %s", buf);
1967 return (1);
1968 }
1969
1970 /* Found the baud rate, set it */
1971 termiosp->c_cflag |= speedtab[i].code & CBAUD;
1972 if (speedtab[i].code > 16) /* cfsetospeed! */
1973 termiosp->c_cflag |= CBAUDEXT;
1974
1975 /* Set bits per character */
1976 switch (buf[ppos+1]) {
1977 case '8':
1978 termiosp->c_cflag |= CS8;
1979 break;
1980 case '7':
1981 termiosp->c_cflag |= CS7;
1982 break;
1983 default:
1984 cmn_err(CE_WARN,
1985 "consconfig_setmodes: illegal bits-per-char %s", buf);
1986 return (1);
1987 }
1988
1989 /* Set parity */
1990 switch (buf[ppos+3]) {
1991 case 'o':
1992 termiosp->c_cflag |= PARENB | PARODD;
1993 break;
1994 case 'e':
1995 termiosp->c_cflag |= PARENB; /* enabled, not odd */
1996 break;
1997 case 'n':
1998 break; /* not enabled. */
1999 default:
2000 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf);
2001 return (1);
2002 }
2003
2004 /* Set stop bits */
2005 switch (buf[ppos+5]) {
2006 case '1':
2007 break; /* No extra stop bit */
2008 case '2':
2009 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */
2010 break;
2011 default:
2012 cmn_err(CE_WARN, "consconfig_setmodes: "
2013 "illegal stop bits %s", buf);
2014 return (1);
2015 }
2016
2017 return (0);
2018 }
2019
2020 /*
2021 * Check to see if underlying keyboard devices are still online,
2022 * if any one is offline now, unlink it.
2023 */
2024 static void
2025 consconfig_check_phys_kbd(cons_state_t *sp)
2026 {
2027 ldi_handle_t kb_lh;
2028 cons_prop_t *prop;
2029 int error;
2030 int rval;
2031
2032 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2033 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1))
2034 continue;
2035
2036 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR,
2037 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li);
2038
2039 if (error) {
2040 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK,
2041 prop->cp_muxid, FKIOCTL, kcred, &rval);
2042 prop->cp_dev = NODEV;
2043 } else {
2044 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred);
2045 }
2046 }
2047
2048 /*
2049 * Remove all disconnected keyboards,
2050 * whose dev is turned into NODEV above.
2051 */
2052 consconfig_rem_dev(sp, NODEV);
2053 }
2054
2055 /*
2056 * Remove devices according to dev, which may be NODEV
2057 */
2058 static void
2059 consconfig_rem_dev(cons_state_t *sp, dev_t dev)
2060 {
2061 cons_prop_t *prop;
2062 cons_prop_t *prev_prop;
2063 cons_prop_t *tmp_prop;
2064 cons_prop_t *head_prop;
2065
2066 head_prop = NULL;
2067 prev_prop = NULL;
2068 for (prop = sp->cons_km_prop; prop != NULL; ) {
2069 if (prop->cp_dev == dev) {
2070 tmp_prop = prop->cp_next;
2071 consconfig_free_prop(prop);
2072 prop = tmp_prop;
2073 if (prev_prop)
2074 prev_prop->cp_next = prop;
2075 } else {
2076 if (head_prop == NULL)
2077 head_prop = prop;
2078 prev_prop = prop;
2079 prop = prop->cp_next;
2080 }
2081 }
2082 sp->cons_km_prop = head_prop;
2083 }
2084
2085 /*
2086 * Add a dev according to prop
2087 */
2088 static void
2089 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop)
2090 {
2091 prop->cp_next = sp->cons_km_prop;
2092 sp->cons_km_prop = prop;
2093 }
2094
2095 /*
2096 * Find a device from our list according to dev
2097 */
2098 static cons_prop_t *
2099 consconfig_find_dev(cons_state_t *sp, dev_t dev)
2100 {
2101 cons_prop_t *prop;
2102
2103 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2104 if (prop->cp_dev == dev)
2105 break;
2106 }
2107
2108 return (prop);
2109 }
2110
2111 /*
2112 * Free a cons prop associated with a keyboard or mouse
2113 */
2114 static void
2115 consconfig_free_prop(cons_prop_t *prop)
2116 {
2117 if (prop->cp_pushmod)
2118 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1);
2119 kmem_free(prop, sizeof (cons_prop_t));
2120 }
2121
2122 /*
2123 * The early boot code can't print to a usb serial device or the
2124 * graphical boot screen.
2125 *
2126 * The early boot messages are saved in a buffer at the address indicated
2127 * by "deferred-console-buf" This function flushes the message to the
2128 * current console now that it is set up.
2129 */
2130 static void
2131 flush_deferred_console_buf(void)
2132 {
2133 int rval;
2134 vnode_t *vp;
2135 uint_t defcons_buf;
2136 char *kc, *bc, *defcons_kern_buf;
2137
2138 /* defcons_buf is in low memory, so an int works here */
2139 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
2140 DDI_PROP_DONTPASS, "deferred-console-buf", 0);
2141
2142 if (defcons_buf == 0)
2143 return;
2144
2145 /*
2146 * After consconfig() and before userland opens /dev/sysmsg,
2147 * console I/O is goes to polled I/O entry points.
2148 *
2149 * If usb-serial doesn't implement polled I/O, we need
2150 * to open /dev/console now to get kernel console I/O to work.
2151 * We also push ttcompat and ldterm explicitly to get the
2152 * correct output format (autopush isn't set up yet). We
2153 * ignore push errors because they are non-fatal.
2154 * Note that opening /dev/console causes rconsvp to be
2155 * opened as well.
2156 */
2157 if (cons_polledio == NULL) {
2158 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY,
2159 0, &vp, 0, 0) != 0)
2160 return;
2161
2162 if (rconsvp) {
2163 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2164 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval);
2165 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2166 (intptr_t)"ttcompat", FKIOCTL, K_TO_K,
2167 kcred, &rval);
2168 }
2169 }
2170
2171 /*
2172 * Copy message to a kernel buffer. Various kernel routines
2173 * expect buffer to be above kernelbase
2174 */
2175 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP);
2176 bc = (char *)(uintptr_t)defcons_buf;
2177 while (*kc++ = *bc++)
2178 ;
2179 console_printf("%s", defcons_kern_buf);
2180
2181 kmem_free(defcons_kern_buf, MMU_PAGESIZE);
2182 }
2183
2184 boolean_t
2185 consconfig_console_is_tipline(void)
2186 {
2187 cons_state_t *sp;
2188
2189 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2190 return (B_FALSE);
2191
2192 if (sp->cons_input_type == CONSOLE_TIP)
2193 return (B_TRUE);
2194
2195 return (B_FALSE);
2196 }
2197
2198 boolean_t
2199 consconfig_dacf_initialized(void)
2200 {
2201 cons_state_t *sp;
2202
2203 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2204 return (B_FALSE);
2205
2206 return (sp->cons_initialized);
2207 }