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 {
275 return (mod_install(&modlinkage));
276 }
277
278 int
279 _fini(void)
280 {
281 /*
282 * This modules state is held in the kernel by space.c
283 * allowing this module to be unloaded.
284 */
285 return (mod_remove(&modlinkage));
286 }
287
288 int
289 _info(struct modinfo *modinfop)
290 {
291 return (mod_info(&modlinkage, modinfop));
292 }
293
294 /*PRINTFLIKE2*/
295 static void consconfig_dprintf(int, const char *, ...)
296 __KPRINTFLIKE(2);
297
298 static void
299 consconfig_dprintf(int l, const char *fmt, ...)
300 {
301 va_list ap;
302
303 #ifndef DEBUG
304 if (!l) {
305 return;
306 }
307 #endif /* DEBUG */
308 if (l < consconfig_errlevel) {
309 return;
310 }
311
312 va_start(ap, fmt);
313 (void) vprintf(fmt, ap);
314 va_end(ap);
315 }
316
317 /*
318 * Return a property value for the specified alias in /aliases.
319 */
320 char *
321 get_alias(char *alias, char *buf)
322 {
323 pnode_t node;
324 int len;
325
326 /* The /aliases node only exists in OBP >= 2.4. */
327 if ((node = prom_alias_node()) == OBP_BADNODE)
328 return (NULL);
329
330 if ((len = prom_getproplen(node, (caddr_t)alias)) <= 0)
331 return (NULL);
332
333 (void) prom_getprop(node, (caddr_t)alias, (caddr_t)buf);
334
335 /*
336 * The IEEE 1275 standard specifies that /aliases string property
337 * values should be null-terminated. Unfortunatly the reality
338 * is that most aren't and the OBP can't easily be modified to
339 * add null termination to these strings. So we'll add the
340 * null termination here. If the string already contains a
341 * null termination character then that's ok too because we'll
342 * just be adding a second one.
343 */
344 buf[len] = '\0';
345
346 prom_pathname(buf);
347 return (buf);
348 }
349
350 /*
351 * i_consconfig_createvp:
352 * This routine is a convenience routine that is passed a path and returns
353 * a vnode.
354 */
355 static vnode_t *
356 i_consconfig_createvp(char *path)
357 {
358 int error;
359 vnode_t *vp;
360 char *buf = NULL, *fullpath;
361
362 DPRINTF(DPRINT_L0, "i_consconfig_createvp: %s\n", path);
363 fullpath = kmem_alloc(MAXPATHLEN, KM_SLEEP);
364
365 if (strchr(path, ':') == NULL) {
366 /* convert an OBP path to a /devices path */
367 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
368 if (i_ddi_prompath_to_devfspath(path, buf) != DDI_SUCCESS) {
369 kmem_free(buf, MAXPATHLEN);
370 kmem_free(fullpath, MAXPATHLEN);
371 return (NULL);
372 }
373 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", buf);
374 kmem_free(buf, MAXPATHLEN);
375 } else {
376 /* convert a devfs path to a /devices path */
377 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", path);
378 }
379
380 DPRINTF(DPRINT_L0, "lookupname(%s)\n", fullpath);
381 error = lookupname(fullpath, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp);
382 kmem_free(fullpath, MAXPATHLEN);
383 if (error)
384 return (NULL);
385
386 DPRINTF(DPRINT_L0, "create vnode = 0x%p - dev 0x%lx\n", vp, vp->v_rdev);
387 ASSERT(vn_matchops(vp, spec_getvnodeops()));
388
389 return (vp);
390 }
391
392 /*
393 * consconfig_print_paths:
394 * Function to print out the various paths
395 */
396 static void
397 consconfig_print_paths(void)
398 {
399 char *path;
400
401 if (usb_kb_path != NULL)
402 cmn_err(CE_WARN,
403 "consconfig_dacf:usb_kb_path has been deprecated, "
404 "use consconfig:usb_kb_path instead");
405
406 if (usb_ms_path != NULL)
407 cmn_err(CE_WARN,
408 "consconfig_dacf:usb_ms_path has been deprecated, "
409 "use consconfig:usb_ms_path instead");
410
411 if (consconfig_errlevel > DPRINT_L0)
412 return;
413
414 path = NULL;
415 if (consconfig_usb_kb_path != NULL)
416 path = consconfig_usb_kb_path;
417 else if (usb_kb_path != NULL)
418 path = usb_kb_path;
419 if (path != NULL)
420 DPRINTF(DPRINT_L0, "usb keyboard path = %s\n", path);
421
422 path = plat_kbdpath();
423 if (path != NULL)
424 DPRINTF(DPRINT_L0, "keyboard path = %s\n", path);
425
426 path = NULL;
427 if (consconfig_usb_ms_path != NULL)
428 path = consconfig_usb_ms_path;
429 else if (usb_ms_path != NULL)
430 path = usb_ms_path;
431 if (path != NULL)
432 DPRINTF(DPRINT_L0, "usb mouse path = %s\n", path);
433
434 path = plat_mousepath();
435 if (path != NULL)
436 DPRINTF(DPRINT_L0, "mouse path = %s\n", path);
437
438 path = plat_stdinpath();
439 if (path != NULL)
440 DPRINTF(DPRINT_L0, "stdin path = %s\n", path);
441
442 path = plat_stdoutpath();
443 if (path != NULL)
444 DPRINTF(DPRINT_L0, "stdout path = %s\n", path);
445
446 path = plat_fbpath();
447 if (path != NULL)
448 DPRINTF(DPRINT_L0, "fb path = %s\n", path);
449 }
450
451 /*
452 * consconfig_kbd_abort_enable:
453 * Send the CONSSETABORTENABLE ioctl to the lower layers. This ioctl
454 * will only be sent to the device if it is the console device.
455 * This ioctl tells the device to pay attention to abort sequences.
456 * In the case of kbtrans, this would tell the driver to pay attention
457 * to the two key abort sequences like STOP-A. In the case of the
458 * serial keyboard, it would be an abort sequence like a break.
459 */
460 static int
461 consconfig_kbd_abort_enable(ldi_handle_t lh)
462 {
463 int err, rval;
464
465 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_enable\n");
466
467 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_TRUE,
468 FKIOCTL, kcred, &rval);
469 return (err);
470 }
471
472 /*
473 * consconfig_kbd_abort_disable:
474 * Send CONSSETABORTENABLE ioctl to lower layers. This ioctl
475 * will only be sent to the device if it is the console device.
476 * This ioctl tells the physical device to ignore abort sequences,
477 * and send the sequences up to virtual keyboard(conskbd) so that
478 * STOP and A (or F1 and A) can be combined.
479 */
480 static int
481 consconfig_kbd_abort_disable(ldi_handle_t lh)
482 {
483 int err, rval;
484
485 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_disable\n");
486
487 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_FALSE,
488 FKIOCTL, kcred, &rval);
489 return (err);
490 }
491
492 #ifdef _HAVE_TEM_FIRMWARE
493 static int
494 consconfig_tem_supported(cons_state_t *sp)
495 {
496 dev_t dev;
497 dev_info_t *dip;
498 int *int_array;
499 uint_t nint;
500 int rv = 0;
501
502 if (sp->cons_fb_path == NULL)
503 return (0);
504
505 if ((dev = ddi_pathname_to_dev_t(sp->cons_fb_path)) == NODEV)
506 return (0); /* warning printed later by common code */
507
508 /*
509 * Here we hold the driver and check "tem-support" property.
510 * We're doing this with e_ddi_hold_devi_by_dev and
511 * ddi_prop_lookup_int_array without opening the driver since
512 * some video cards that don't support the kernel terminal
513 * emulator could hang or crash if opened too early during
514 * boot.
515 */
516 if ((dip = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) {
517 cmn_err(CE_WARN, "consconfig: cannot hold fb dev %s",
518 sp->cons_fb_path);
519 return (0);
520 }
521
522 /*
523 * Check that the tem-support property exists AND that
524 * it is equal to 1.
525 */
526 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,
527 DDI_PROP_DONTPASS, "tem-support", &int_array, &nint) ==
528 DDI_SUCCESS) {
529 if (nint > 0)
530 rv = int_array[0] == 1;
531 ddi_prop_free(int_array);
532 }
533
534 ddi_release_devi(dip);
535
536 return (rv);
537 }
538 #endif /* _HAVE_TEM_FIRMWARE */
539
540 /*
541 * consconfig_get_polledio:
542 * Query the console with the CONSPOLLEDIO ioctl.
543 * The polled I/O routines are used by debuggers to perform I/O while
544 * interrupts and normal kernel services are disabled.
545 */
546 static cons_polledio_t *
547 consconfig_get_polledio(ldi_handle_t lh)
548 {
549 int err, rval;
550 struct strioctl strioc;
551 cons_polledio_t *polled_io;
552
553 /*
554 * Setup the ioctl to be sent down to the lower driver.
555 */
556 strioc.ic_cmd = CONSOPENPOLLEDIO;
557 strioc.ic_timout = INFTIM;
558 strioc.ic_len = sizeof (polled_io);
559 strioc.ic_dp = (char *)&polled_io;
560
561 /*
562 * Send the ioctl to the driver. The ioctl will wait for
563 * the response to come back from wc. wc has already issued
564 * the CONSOPENPOLLEDIO to the lower layer driver.
565 */
566 err = ldi_ioctl(lh, I_STR, (intptr_t)&strioc, FKIOCTL, kcred, &rval);
567
568 if (err != 0) {
569 /*
570 * If the lower driver does not support polled I/O, then
571 * return NULL. This will be the case if the driver does
572 * not handle polled I/O, or OBP is going to handle polled
573 * I/O for the device.
574 */
575
576 return (NULL);
577 }
578
579 /*
580 * Return the polled I/O structure.
581 */
582 return (polled_io);
583 }
584
585 /*
586 * consconfig_setup_polledio:
587 * This routine does the setup work for polled I/O. First we get
588 * the polled_io structure from the lower layers
589 * and then we register the polled I/O
590 * callbacks with the debugger that will be using them.
591 */
592 static void
593 consconfig_setup_polledio(cons_state_t *sp, dev_t dev)
594 {
595 cons_polledio_t *polled_io;
596 ldi_handle_t lh;
597
598 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: start\n");
599
600
601 if (ldi_open_by_dev(&dev, OTYP_CHR,
602 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li) != 0)
603 return;
604
605
606 /*
607 * Get the polled io routines so that we can use this
608 * device with the debuggers.
609 */
610 polled_io = consconfig_get_polledio(lh);
611
612 /*
613 * If the get polledio failed, then we do not want to throw
614 * the polled I/O switch.
615 */
616 if (polled_io == NULL) {
617 DPRINTF(DPRINT_L0,
618 "consconfig_setup_polledio: get_polledio failed\n");
619 (void) ldi_close(lh, FREAD|FWRITE, kcred);
620 return;
621 }
622
623 /* Initialize the polled input */
624 polled_io_init();
625
626 /* Register the callbacks */
627 DPRINTF(DPRINT_L0,
628 "consconfig_setup_polledio: registering callbacks\n");
629 (void) polled_io_register_callbacks(polled_io, 0);
630
631 (void) ldi_close(lh, FREAD|FWRITE, kcred);
632
633 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: end\n");
634 }
635
636 static cons_state_t *
637 consconfig_state_init(void)
638 {
639 cons_state_t *sp;
640 int rval;
641
642 /* Initialize console information */
643 sp = kmem_zalloc(sizeof (cons_state_t), KM_SLEEP);
644 sp->cons_keyboard_problem = B_FALSE;
645
646 mutex_init(&sp->cons_lock, NULL, MUTEX_DRIVER, NULL);
647
648 /* check if consconfig:usb_kb_path is set in /etc/system */
649 consconfig_usb_kb_path = consconfig_get_usb_kb_path();
650
651 /* check if consconfig:usb_ms_path is set in /etc/system */
652 consconfig_usb_ms_path = consconfig_get_usb_ms_path();
653
654 consconfig_print_paths();
655
656 /* init external globals */
657 stdoutdev = NODEV;
658
659 /*
660 * Find keyboard, mouse, stdin and stdout devices, if they
661 * exist on this platform.
662 */
663
664 if (consconfig_usb_kb_path != NULL) {
665 sp->cons_keyboard_path = consconfig_usb_kb_path;
666 } else if (usb_kb_path != NULL) {
667 sp->cons_keyboard_path = usb_kb_path;
668 } else {
669 sp->cons_keyboard_path = plat_kbdpath();
670 }
671
672 if (consconfig_usb_ms_path != NULL) {
673 sp->cons_mouse_path = consconfig_usb_ms_path;
674 } else if (usb_ms_path != NULL) {
675 sp->cons_mouse_path = usb_ms_path;
676 } else {
677 sp->cons_mouse_path = plat_mousepath();
678 }
679
680 /* Identify the stdout driver */
681 sp->cons_stdout_path = plat_stdoutpath();
682 sp->cons_stdout_is_fb = plat_stdout_is_framebuffer();
683
684 sp->cons_stdin_is_kbd = plat_stdin_is_keyboard();
685
686 if (sp->cons_stdin_is_kbd &&
687 (usb_kb_path != NULL || consconfig_usb_kb_path != NULL)) {
688 sp->cons_stdin_path = sp->cons_keyboard_path;
689 } else {
690 /*
691 * The standard in device may or may not be the same as
692 * the keyboard. Even if the keyboard is not the
693 * standard input, the keyboard console stream will
694 * still be built if the keyboard alias provided by the
695 * firmware exists and is valid.
696 */
697 sp->cons_stdin_path = plat_stdinpath();
698 }
699
700 if (sp->cons_stdout_is_fb) {
701 sp->cons_fb_path = sp->cons_stdout_path;
702
703 #ifdef _HAVE_TEM_FIRMWARE
704 sp->cons_tem_supported = consconfig_tem_supported(sp);
705
706 /*
707 * Systems which offer a virtual console must use that
708 * as a fallback whenever the fb doesn't support tem.
709 * Such systems cannot render characters to the screen
710 * using OBP.
711 */
712 if (!sp->cons_tem_supported) {
713 char *path;
714
715 if (plat_virtual_console_path(&path) >= 0) {
716 sp->cons_stdin_is_kbd = 0;
717 sp->cons_stdout_is_fb = 0;
718 sp->cons_stdin_path = path;
719 sp->cons_stdout_path = path;
720 sp->cons_fb_path = plat_fbpath();
721
722 cmn_err(CE_WARN,
723 "%s doesn't support terminal emulation "
724 "mode; switching to virtual console.",
725 sp->cons_fb_path);
726 }
727 }
728 #endif /* _HAVE_TEM_FIRMWARE */
729 } else {
730 sp->cons_fb_path = plat_fbpath();
731 #ifdef _HAVE_TEM_FIRMWARE
732 sp->cons_tem_supported = consconfig_tem_supported(sp);
733 #endif /* _HAVE_TEM_FIRMWARE */
734 }
735
736 sp->cons_li = ldi_ident_from_anon();
737
738 /* Save the pointer for retrieval by the dacf functions */
739 rval = space_store("consconfig", (uintptr_t)sp);
740 ASSERT(rval == 0);
741
742 return (sp);
743 }
744
745 static int
746 consconfig_relink_wc(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
747 {
748 int err, rval;
749 ldi_handle_t wc_lh;
750 dev_t wc_dev;
751
752 ASSERT(muxid != NULL);
753
754 /*
755 * NOTE: we could be in a dacf callback context right now. normally
756 * it's not legal to call any ldi_open_*() function from this context
757 * because we're currently holding device tree locks and if the
758 * ldi_open_*() call could try to acquire other device tree locks
759 * (to attach the device we're trying to open.) if this happens then
760 * we could deadlock. To avoid this situation, during initialization
761 * we made sure to grab a hold on the dip of the device we plan to
762 * open so that it can never be detached. Then we use
763 * ldi_open_by_dev() to actually open the device since it will see
764 * that the device is already attached and held and instead of
765 * acquire any locks it will only increase the reference count
766 * on the device.
767 */
768 wc_dev = sp->cons_wc_vp->v_rdev;
769 err = ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
770 kcred, &wc_lh, sp->cons_li);
771 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
772 if (err) {
773 cmn_err(CE_WARN, "consconfig_relink_wc: "
774 "unable to open wc device");
775 return (err);
776 }
777
778 if (new_lh != NULL) {
779 DPRINTF(DPRINT_L0, "linking stream under wc\n");
780
781 err = ldi_ioctl(wc_lh, I_PLINK, (uintptr_t)new_lh,
782 FKIOCTL, kcred, muxid);
783 if (err != 0) {
784 cmn_err(CE_WARN, "consconfig_relink_wc: "
785 "wc link failed, error %d", err);
786 }
787 } else {
788 DPRINTF(DPRINT_L0, "unlinking stream from under wc\n");
789
790 err = ldi_ioctl(wc_lh, I_PUNLINK, *muxid,
791 FKIOCTL, kcred, &rval);
792 if (err != 0) {
793 cmn_err(CE_WARN, "consconfig_relink_wc: "
794 "wc unlink failed, error %d", err);
795 } else {
796 *muxid = -1;
797 }
798 }
799
800 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
801 return (err);
802 }
803
804 static void
805 cons_build_upper_layer(cons_state_t *sp)
806 {
807 ldi_handle_t wc_lh;
808 struct strioctl strioc;
809 int rval;
810 dev_t dev;
811 dev_t wc_dev;
812
813 /*
814 * Build the wc->conskbd portion of the keyboard console stream.
815 * Even if no keyboard is attached to the system, the upper
816 * layer of the stream will be built. If the user attaches
817 * a keyboard after the system is booted, the keyboard driver
818 * and module will be linked under conskbd.
819 *
820 * Errors are generally ignored here because conskbd and wc
821 * are pseudo drivers and should be present on the system.
822 */
823
824 /* open the console keyboard device. will never be closed */
825 if (ldi_open_by_name(CONSKBD_PATH, FREAD|FWRITE|FNOCTTY,
826 kcred, &sp->conskbd_lh, sp->cons_li) != 0) {
827 panic("consconfig: unable to open conskbd device");
828 /*NOTREACHED*/
829 }
830
831 DPRINTF(DPRINT_L0, "conskbd_lh = %p\n", sp->conskbd_lh);
832
833 /* open the console mouse device. will never be closed */
834 if (ldi_open_by_name(CONSMS_PATH, FREAD|FWRITE|FNOCTTY,
835 kcred, &sp->consms_lh, sp->cons_li) != 0) {
836 panic("consconfig: unable to open consms device");
837 /*NOTREACHED*/
838 }
839
840 DPRINTF(DPRINT_L0, "consms_lh = %p\n", sp->consms_lh);
841
842 /*
843 * Get a vnode for the wc device and then grab a hold on the
844 * device dip so it can never detach. We need to do this now
845 * because later we'll have to open the wc device in a context
846 * were it isn't safe to acquire any device tree locks (ie, during
847 * a dacf callback.)
848 */
849 sp->cons_wc_vp = i_consconfig_createvp(WC_PATH);
850 if (sp->cons_wc_vp == NULL)
851 panic("consconfig: unable to find wc device");
852
853 if (e_ddi_hold_devi_by_dev(sp->cons_wc_vp->v_rdev, 0) == NULL)
854 panic("consconfig: unable to hold wc device");
855
856 /*
857 * Build the wc->conskbd portion of the keyboard console stream.
858 * Even if no keyboard is attached to the system, the upper
859 * layer of the stream will be built. If the user attaches
860 * a keyboard after the system is booted, the keyboard driver
861 * and module will be linked under conskbd.
862 *
863 * The act of linking conskbd under wc will cause wc to
864 * query the lower layers about their polled I/O routines
865 * using CONSOPENPOLLEDIO. This will fail on this link because
866 * there is not a physical keyboard linked under conskbd.
867 *
868 * Since conskbd and wc are pseudo drivers, errors are
869 * generally ignored when linking and unlinking them.
870 */
871 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
872
873 /*
874 * Get a vnode for the redirection device. (It has the
875 * connection to the workstation console device wired into it,
876 * so that it's not necessary to establish the connection
877 * here. If the redirection device is ever generalized to
878 * handle multiple client devices, it won't be able to
879 * establish the connection itself, and we'll have to do it
880 * here.)
881 */
882 wsconsvp = i_consconfig_createvp(IWSCN_PATH);
883 if (wsconsvp == NULL) {
884 panic("consconfig: unable to find iwscn device");
885 /*NOTREACHED*/
886 }
887
888 if (cons_tem_disable)
889 return;
890
891 if (sp->cons_fb_path == NULL) {
892 #if defined(__x86)
893 if (sp->cons_stdout_is_fb)
894 cmn_err(CE_WARN, "consconfig: no screen found");
895 #endif
896 return;
897 }
898
899 /* make sure the frame buffer device exists */
900 dev = ddi_pathname_to_dev_t(sp->cons_fb_path);
901 if (dev == NODEV) {
902 cmn_err(CE_WARN, "consconfig: "
903 "cannot find driver for screen device %s",
904 sp->cons_fb_path);
905 return;
906 }
907
908 #ifdef _HAVE_TEM_FIRMWARE
909 /*
910 * If the underlying fb device doesn't support terminal emulation,
911 * we don't want to open the wc device (below) because it depends
912 * on features which aren't available (polled mode io).
913 */
914 if (!sp->cons_tem_supported)
915 return;
916 #endif /* _HAVE_TEM_FIRMWARE */
917
918 /* tell wc to open the frame buffer device */
919 wc_dev = sp->cons_wc_vp->v_rdev;
920 if (ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, kcred,
921 &wc_lh, sp->cons_li)) {
922 cmn_err(CE_PANIC, "cons_build_upper_layer: "
923 "unable to open wc device");
924 return;
925 }
926 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
927
928 strioc.ic_cmd = WC_OPEN_FB;
929 strioc.ic_timout = INFTIM;
930 strioc.ic_len = strlen(sp->cons_fb_path) + 1;
931 strioc.ic_dp = sp->cons_fb_path;
932
933 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc,
934 FKIOCTL, kcred, &rval) == 0)
935 consmode = CONS_KFB;
936 else
937 cmn_err(CE_WARN,
938 "consconfig: terminal emulator failed to initialize");
939 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
940 }
941
942 static void
943 consconfig_load_drivers(cons_state_t *sp)
944 {
945 /*
946 * Calling ddi_pathname_to_dev_t may cause the USB Host Controller
947 * drivers to be loaded. Here we make sure that EHCI is loaded
948 * earlier than {U, O}HCI. The order here is important. As
949 * we have observed many systems on which hangs occur if the
950 * {U,O}HCI companion controllers take over control from the BIOS
951 * before EHCI does. These hangs are also caused by BIOSes leaving
952 * interrupt-on-port-change enabled in the ehci controller, so that
953 * when uhci/ohci reset themselves, it induces a port change on
954 * the ehci companion controller. Since there's no interrupt handler
955 * installed at the time, the moment that interrupt is unmasked, an
956 * interrupt storm will occur. All this is averted when ehci is
957 * loaded first. And now you know..... the REST of the story.
958 *
959 * Regardless of platform, ehci needs to initialize first to avoid
960 * unnecessary connects and disconnects on the companion controller
961 * when ehci sets up the routing.
962 *
963 * The same is generally true of xhci. Many platforms have routing
964 * between the xhci controller and the ehci controller. To avoid those
965 * same disconnects, we load xhci before ehci.
966 */
967 (void) ddi_hold_installed_driver(ddi_name_to_major("xhci"));
968 (void) ddi_hold_installed_driver(ddi_name_to_major("ehci"));
969 (void) ddi_hold_installed_driver(ddi_name_to_major("uhci"));
970 (void) ddi_hold_installed_driver(ddi_name_to_major("ohci"));
971
972 /*
973 * The attaching of the drivers will cause the creation of the
974 * keyboard and mouse minor nodes, which will in turn trigger the
975 * dacf framework to call the keyboard and mouse configuration
976 * tasks. See PSARC/1998/212 for more details about the dacf
977 * framework.
978 *
979 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1
980 * is kb/mouse. zs0 must be attached before zs1. The zs driver
981 * is written this way and the hardware may depend on this, too.
982 * It would be better to enforce this by attaching zs in sibling
983 * order with a driver property, such as ddi-attachall.
984 */
985 if (sp->cons_stdin_path != NULL)
986 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path);
987 if (stdindev == NODEV) {
988 DPRINTF(DPRINT_L0,
989 "!fail to attach stdin: %s\n", sp->cons_stdin_path);
990 }
991 if (sp->cons_stdout_path != NULL)
992 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path);
993 if (sp->cons_keyboard_path != NULL)
994 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path);
995 if (sp->cons_mouse_path != NULL)
996 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path);
997
998 /*
999 * On x86, make sure the fb driver is loaded even if we don't use it
1000 * for the console. This will ensure that we create a /dev/fb link
1001 * which is required to start Xorg.
1002 */
1003 #if defined(__x86)
1004 if (sp->cons_fb_path != NULL)
1005 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path);
1006 #endif
1007
1008 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, "
1009 "mousedev %lx\n", stdindev, stdoutdev, kbddev, mousedev);
1010 }
1011
1012 #if !defined(__x86)
1013 void
1014 consconfig_virtual_console_vp(cons_state_t *sp)
1015 {
1016 char *virtual_cons_path;
1017
1018 if (plat_virtual_console_path(&virtual_cons_path) < 0)
1019 return;
1020
1021 DPRINTF(DPRINT_L0, "consconfig_virtual_console_vp: "
1022 "virtual console device path %s\n", virtual_cons_path);
1023
1024 ASSERT(sp->cons_stdout_path != NULL);
1025 if (strcmp(virtual_cons_path, sp->cons_stdout_path) == 0) {
1026 /* virtual console already in use */
1027 return;
1028 }
1029
1030 vsconsvp = i_consconfig_createvp(virtual_cons_path);
1031 if (vsconsvp == NULL) {
1032 cmn_err(CE_WARN, "consconfig_virtual_console_vp: "
1033 "unable to find serial virtual console device %s",
1034 virtual_cons_path);
1035 return;
1036 }
1037
1038 (void) e_ddi_hold_devi_by_dev(vsconsvp->v_rdev, 0);
1039 }
1040 #endif
1041
1042 static void
1043 consconfig_init_framebuffer(cons_state_t *sp)
1044 {
1045 if (!sp->cons_stdout_is_fb)
1046 return;
1047
1048 DPRINTF(DPRINT_L0, "stdout is framebuffer\n");
1049 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0);
1050
1051 /*
1052 * Console output is a framebuffer.
1053 * Find the framebuffer driver if we can, and make
1054 * ourselves a shadow vnode to track it with.
1055 */
1056 fbdev = stdoutdev;
1057 if (fbdev == NODEV) {
1058 DPRINTF(DPRINT_L3,
1059 "Can't find driver for console framebuffer\n");
1060 } else {
1061 /* stdoutdev is valid, of fbvp should exist */
1062 fbvp = i_consconfig_createvp(sp->cons_stdout_path);
1063 if (fbvp == NULL) {
1064 panic("consconfig_init_framebuffer: "
1065 "unable to find frame buffer device");
1066 /*NOTREACHED*/
1067 }
1068 ASSERT(fbvp->v_rdev == fbdev);
1069
1070 /* console device is never released */
1071 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0);
1072 }
1073 pm_cfb_setup(sp->cons_stdout_path);
1074 }
1075
1076 /*
1077 * consconfig_prepare_dev:
1078 * Flush the stream, push "pushmod" onto the stream.
1079 * for keyboard, issue the KIOCTRANSABLE ioctl, and
1080 * possible enable abort.
1081 */
1082 static void
1083 consconfig_prepare_dev(
1084 ldi_handle_t new_lh,
1085 const char *pushmod,
1086 int kbdtranslatable,
1087 int input_type,
1088 int dev_type)
1089 {
1090 int err, rval;
1091
1092 /* send a flush down the stream to the keyboard driver */
1093 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW,
1094 FKIOCTL, kcred, &rval);
1095
1096 if (pushmod) {
1097 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod,
1098 FKIOCTL, kcred, &rval);
1099 if (err) {
1100 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1101 "can't push streams module \"%s\", error %d",
1102 pushmod, err);
1103 }
1104 }
1105
1106 if (dev_type == CONS_MS)
1107 return;
1108
1109 ASSERT(dev_type == CONS_KBD);
1110
1111 err = ldi_ioctl(new_lh, KIOCTRANSABLE,
1112 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval);
1113 if (err) {
1114 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1115 "KIOCTRANSABLE failed, error: %d", err);
1116 }
1117
1118 /*
1119 * During boot, dynamic_console_config() will call the
1120 * function to enable abort on the console. If the
1121 * keyboard is hotplugged after boot, check to see if
1122 * the keyboard is the console input. If it is
1123 * enable abort on it.
1124 */
1125 if (input_type == CONSOLE_LOCAL)
1126 (void) consconfig_kbd_abort_enable(new_lh);
1127 }
1128
1129 /*
1130 * consconfig_relink_conskbd:
1131 * If new_lh is not NULL it should represent a driver with a
1132 * keyboard module pushed on top of it. The driver is then linked
1133 * underneath conskbd. the resulting stream will be
1134 * wc->conskbd->"new_lh driver".
1135 *
1136 * If new_lh is NULL, then an unlink operation is done on conskbd
1137 * that attempts to unlink the stream specified by *muxid.
1138 * the resulting stream will be wc->conskbd.
1139 */
1140 static int
1141 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1142 {
1143 int err, rval;
1144 int conskbd_relink = 0;
1145
1146 ASSERT(muxid != NULL);
1147
1148 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: "
1149 "conskbd_lh = %p, new_lh = %p, muxid = %x\n",
1150 sp->conskbd_lh, new_lh, *muxid);
1151
1152 /*
1153 * If conskbd is linked under wc then temporarily unlink it
1154 * from under wc so that the new_lh stream may be linked under
1155 * conskbd. This has to be done because streams are built bottom
1156 * up and linking a stream under conskbd isn't allowed when
1157 * conskbd is linked under wc.
1158 */
1159 if (sp->conskbd_muxid != -1) {
1160 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n");
1161 conskbd_relink = 1;
1162 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1163 if (err) {
1164 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1165 "wc unlink failed, error %d", err);
1166 return (err);
1167 }
1168 }
1169
1170 if (new_lh != NULL) {
1171 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n");
1172
1173 /* Link the stream represented by new_lh under conskbd */
1174 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh,
1175 FKIOCTL, kcred, muxid);
1176 if (err != 0) {
1177 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1178 "conskbd link failed, error %d", err);
1179 goto relink_failed;
1180 }
1181 } else {
1182 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n");
1183
1184 /*
1185 * This will cause the keyboard driver to be closed,
1186 * all modules to be popped, and the keyboard vnode released.
1187 */
1188 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid,
1189 FKIOCTL, kcred, &rval);
1190 if (err != 0) {
1191 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1192 "conskbd unlink failed, error %d", err);
1193 goto relink_failed;
1194 } else {
1195 *muxid = -1;
1196 }
1197
1198 consconfig_check_phys_kbd(sp);
1199 }
1200
1201 if (!conskbd_relink)
1202 return (err);
1203
1204 /*
1205 * Link consbkd back under wc.
1206 *
1207 * The act of linking conskbd back under wc will cause wc
1208 * to query the lower lower layers about their polled I/O
1209 * routines. This time the request will succeed because there
1210 * is a physical keyboard linked under conskbd.
1211 */
1212 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1213 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1214 if (err) {
1215 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1216 "wc link failed, error %d", err);
1217 }
1218 return (err);
1219
1220 relink_failed:
1221 if (!conskbd_relink)
1222 return (err);
1223
1224 /* something went wrong, try to reconnect conskbd back under wc */
1225 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1226 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1227 return (err);
1228 }
1229
1230 /*
1231 * consconfig_relink_consms:
1232 * If new_lh is not NULL it should represent a driver with a
1233 * mouse module pushed on top of it. The driver is then linked
1234 * underneath consms. the resulting stream will be
1235 * consms->"new_lh driver".
1236 *
1237 * If new_lh is NULL, then an unlink operation is done on consms
1238 * that attempts to unlink the stream specified by *muxid.
1239 */
1240 static int
1241 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1242 {
1243 int err, rval;
1244
1245 DPRINTF(DPRINT_L0, "consconfig_relink_consms: "
1246 "consms_lh = %p, new_lh = %p, muxid = %x\n",
1247 (void *)sp->consms_lh, (void *)new_lh, *muxid);
1248
1249 if (new_lh != NULL) {
1250 DPRINTF(DPRINT_L0, "linking mouse under consms\n");
1251
1252 /* Link ms/usbms stream underneath consms multiplexor. */
1253 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh,
1254 FKIOCTL, kcred, muxid);
1255 if (err != 0) {
1256 cmn_err(CE_WARN, "consconfig_relink_consms: "
1257 "mouse link failed, error %d", err);
1258 }
1259 } else {
1260 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n");
1261
1262 /* Tear down the mouse stream */
1263 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid,
1264 FKIOCTL, kcred, &rval);
1265 if (err != 0) {
1266 cmn_err(CE_WARN, "consconfig_relink_consms: "
1267 "mouse unlink failed, error %d", err);
1268 } else {
1269 *muxid = -1;
1270 }
1271 }
1272 return (err);
1273 }
1274
1275 static int
1276 cons_get_input_type(cons_state_t *sp)
1277 {
1278 int type;
1279
1280 /*
1281 * Now that we know what all the devices are, we can figure out
1282 * what kind of console we have.
1283 */
1284 if (sp->cons_stdin_is_kbd) {
1285 /* Stdin is from the system keyboard */
1286 type = CONSOLE_LOCAL;
1287 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) {
1288 /*
1289 * A reliable indicator that we are doing a remote console
1290 * is that stdin and stdout are the same.
1291 * This is probably a tip line.
1292 */
1293 type = CONSOLE_TIP;
1294 } else {
1295 type = CONSOLE_SERIAL_KEYBOARD;
1296 }
1297
1298 return (type);
1299 }
1300
1301 static void
1302 consconfig_init_input(cons_state_t *sp)
1303 {
1304 ldi_handle_t new_lh;
1305 dev_t cons_final_dev;
1306 int err;
1307
1308 cons_final_dev = NODEV;
1309
1310 switch (sp->cons_input_type) {
1311 case CONSOLE_LOCAL:
1312 DPRINTF(DPRINT_L0, "stdin is keyboard\n");
1313
1314 /*
1315 * The machine is allowed to boot without a keyboard.
1316 * If a user attaches a keyboard later, the keyboard
1317 * will be hooked into the console stream with the dacf
1318 * functions.
1319 *
1320 * The only drivers that look at kbbdev are the
1321 * serial drivers, which looks at kbdev to see if
1322 * they should allow abort on a break. In the absence
1323 * of keyboard, the serial drivers won't be attached
1324 * for any keyboard instance.
1325 */
1326 if (kbddev == NODEV) {
1327 /*
1328 * If there is a problem with the keyboard
1329 * during the driver loading, then the polled
1330 * input won't get setup properly if polled
1331 * input is needed. This means that if the
1332 * keyboard is hotplugged, the keyboard would
1333 * work normally, but going down to the
1334 * debugger would not work if polled input is
1335 * required. This field is set here. The next
1336 * time a keyboard is plugged in, the field is
1337 * checked in order to give the next keyboard a
1338 * chance at being registered for console
1339 * input.
1340 *
1341 * Although this code will rarely be needed,
1342 * USB keyboards can be flaky, so this code
1343 * will be useful on the occasion that the
1344 * keyboard doesn't enumerate when the drivers
1345 * are loaded.
1346 */
1347 DPRINTF(DPRINT_L2, "Error with console keyboard\n");
1348 sp->cons_keyboard_problem = B_TRUE;
1349 }
1350 stdindev = kbddev;
1351 cons_final_dev = sp->cons_wc_vp->v_rdev;
1352 break;
1353
1354 case CONSOLE_TIP:
1355 DPRINTF(DPRINT_L0, "console input is tty (%s)\n",
1356 sp->cons_stdin_path);
1357
1358 /*
1359 * Console device drivers must be able to output
1360 * after being closed.
1361 */
1362 rconsvp = i_consconfig_createvp(sp->cons_stdin_path);
1363 if (rconsvp == NULL) {
1364 panic("consconfig_init_input: "
1365 "unable to find stdin device (%s)",
1366 sp->cons_stdin_path);
1367 /*NOTREACHED*/
1368 }
1369 rconsdev = rconsvp->v_rdev;
1370
1371 ASSERT(rconsdev == stdindev);
1372
1373 cons_final_dev = rconsdev;
1374 break;
1375
1376 case CONSOLE_SERIAL_KEYBOARD:
1377 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n");
1378
1379 /*
1380 * Non-keyboard input device, but not rconsdev.
1381 * This is known as the "serial keyboard" case - the
1382 * most likely use is someone has a keyboard attached
1383 * to a serial port (tip) and still has output on a
1384 * framebuffer.
1385 *
1386 * In this case, the serial driver must be linked
1387 * directly beneath wc. Since conskbd was linked
1388 * underneath wc above, first we unlink conskbd.
1389 */
1390 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1391 sp->conskbd_muxid = -1;
1392
1393 /*
1394 * Open the serial keyboard, configure it,
1395 * and link it underneath wc.
1396 */
1397 err = ldi_open_by_name(sp->cons_stdin_path,
1398 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li);
1399 if (err == 0) {
1400 struct termios termios;
1401 int rval;
1402 int stdin_muxid;
1403
1404 consconfig_prepare_dev(new_lh,
1405 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD);
1406
1407 /* Re-set baud rate */
1408 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios,
1409 FKIOCTL, kcred, &rval);
1410
1411 /* Set baud rate */
1412 if (consconfig_setmodes(stdindev, &termios) == 0) {
1413 err = ldi_ioctl(new_lh,
1414 TCSETSF, (intptr_t)&termios,
1415 FKIOCTL, kcred, &rval);
1416 if (err) {
1417 cmn_err(CE_WARN,
1418 "consconfig_init_input: "
1419 "TCSETSF failed, error %d", err);
1420 }
1421 }
1422
1423 /*
1424 * Now link the serial keyboard direcly under wc
1425 * we don't save the returned muxid because we
1426 * don't support changing/hotplugging the console
1427 * keyboard when it is a serial keyboard.
1428 */
1429 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid);
1430
1431 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1432 }
1433
1434 cons_final_dev = sp->cons_wc_vp->v_rdev;
1435 break;
1436
1437 default:
1438 panic("consconfig_init_input: "
1439 "unsupported console input/output combination");
1440 /*NOTREACHED*/
1441 }
1442
1443 /*
1444 * Use the redirection device/workstation console pair as the "real"
1445 * console if the latter hasn't already been set.
1446 * The workstation console driver needs to see rwsconsvp, but
1447 * all other access should be through the redirecting driver.
1448 */
1449 if (rconsvp == NULL) {
1450 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n");
1451 rconsvp = wsconsvp;
1452 rconsdev = wsconsvp->v_rdev;
1453 }
1454
1455 ASSERT(cons_final_dev != NODEV);
1456
1457 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
1458 kcred, &new_lh, sp->cons_li);
1459 if (err) {
1460 panic("consconfig_init_input: "
1461 "unable to open console device");
1462 /*NOTREACHED*/
1463 }
1464
1465 /* Enable abort on the console */
1466 (void) consconfig_kbd_abort_enable(new_lh);
1467
1468 /* Now we must close it to make console logins happy */
1469 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1470
1471 /* Set up polled input if it is supported by the console device */
1472 if (plat_use_polled_debug()) {
1473 /*
1474 * In the debug case, register the keyboard polled entry
1475 * points, but don't throw the switch in the debugger. This
1476 * allows the polled entry points to be checked by hand
1477 */
1478 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1479 } else {
1480 consconfig_setup_polledio(sp, cons_final_dev);
1481 }
1482
1483 kadb_uses_kernel();
1484 }
1485
1486 /*
1487 * This function kicks off the console configuration.
1488 * Configure keyboard and mouse. Main entry here.
1489 */
1490 void
1491 dynamic_console_config(void)
1492 {
1493 /* initialize space.c globals */
1494 stdindev = NODEV;
1495 mousedev = NODEV;
1496 kbddev = NODEV;
1497 fbdev = NODEV;
1498 fbvp = NULL;
1499 fbdip = NULL;
1500 wsconsvp = NULL;
1501 rwsconsvp = NULL;
1502 rwsconsdev = NODEV;
1503 rconsvp = NULL;
1504 rconsdev = NODEV;
1505
1506 /* Initialize cons_state_t structure and console device paths */
1507 consconfig_sp = consconfig_state_init();
1508 ASSERT(consconfig_sp);
1509
1510 /* Build upper layer of console stream */
1511 cons_build_upper_layer(consconfig_sp);
1512
1513 /*
1514 * Load keyboard/mouse drivers. The dacf routines will
1515 * plumb the devices into the console stream
1516 *
1517 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard
1518 * and mouse drivers are linked into their respective console
1519 * streams if the pathnames are valid.
1520 */
1521 consconfig_load_drivers(consconfig_sp);
1522 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp);
1523
1524 /*
1525 * This is legacy special case code for the "cool" virtual console
1526 * for the Starfire project. Starfire has a dummy "ssp-serial"
1527 * node in the OBP device tree and cvc is a pseudo driver.
1528 */
1529 if (consconfig_sp->cons_stdout_path != NULL && stdindev == NODEV &&
1530 strstr(consconfig_sp->cons_stdout_path, "ssp-serial")) {
1531 /*
1532 * Setup the virtual console driver for Starfire
1533 * Note that console I/O will still go through prom for now
1534 * (notice we don't open the driver here). The cvc driver
1535 * will be activated when /dev/console is opened by init.
1536 * During that time, a cvcd daemon will be started that
1537 * will open the cvcredirection driver to facilitate
1538 * the redirection of console I/O from cvc to cvcd.
1539 */
1540 rconsvp = i_consconfig_createvp(CVC_PATH);
1541 if (rconsvp == NULL)
1542 goto done;
1543 rconsdev = rconsvp->v_rdev;
1544 goto done;
1545 }
1546
1547 rwsconsvp = consconfig_sp->cons_wc_vp;
1548 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev;
1549
1550
1551 /* initialize framebuffer, console input, and redirection device */
1552 consconfig_init_framebuffer(consconfig_sp);
1553 consconfig_init_input(consconfig_sp);
1554
1555 #if !defined(__x86)
1556 /* initialize virtual console vp for logging if needed */
1557 consconfig_virtual_console_vp(consconfig_sp);
1558 #endif
1559
1560 DPRINTF(DPRINT_L0,
1561 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n",
1562 mousedev, kbddev, fbdev, rconsdev);
1563
1564 flush_deferred_console_buf();
1565 done:
1566 consconfig_sp->cons_initialized = B_TRUE;
1567 }
1568
1569
1570 /*
1571 * Start of DACF interfaces
1572 */
1573
1574 /*
1575 * Do the real job for keyboard/mouse auto-configuration.
1576 */
1577 static int
1578 do_config(cons_state_t *sp, cons_prop_t *prop)
1579 {
1580 ldi_handle_t lh;
1581 dev_t dev;
1582 int error;
1583
1584 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1585
1586 dev = prop->cp_dev;
1587 error = ldi_open_by_dev(&dev, OTYP_CHR,
1588 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li);
1589 if (error) {
1590 return (DACF_FAILURE);
1591 }
1592 ASSERT(dev == prop->cp_dev); /* clone not supported */
1593
1594 /*
1595 * Prepare the new keyboard/mouse driver
1596 * to be linked under conskbd/consms.
1597 */
1598 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN,
1599 sp->cons_input_type, prop->cp_type);
1600
1601 if (prop->cp_type == CONS_KBD) {
1602 /*
1603 * Tell the physical keyboard driver to send
1604 * the abort sequences up to the virtual keyboard
1605 * driver so that STOP and A (or F1 and A)
1606 * can be applied to different keyboards.
1607 */
1608 (void) consconfig_kbd_abort_disable(lh);
1609
1610 /* Link the stream underneath conskbd */
1611 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid);
1612 } else {
1613 /* Link the stream underneath consms */
1614 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid);
1615 }
1616
1617 /*
1618 * At this point, the stream is:
1619 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"]
1620 * for mouse: consms->["module_name"->]"mouse_avp driver"
1621 */
1622
1623 /* Close the driver stream, it will stay linked under conskbd */
1624 (void) ldi_close(lh, FREAD|FWRITE, kcred);
1625
1626 if (error) {
1627 return (DACF_FAILURE);
1628 }
1629
1630 return (DACF_SUCCESS);
1631 }
1632
1633 static int
1634 do_unconfig(cons_state_t *sp, cons_prop_t *prop)
1635 {
1636 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1637
1638 if (prop->cp_type == CONS_KBD)
1639 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid));
1640 else
1641 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid));
1642 }
1643
1644 static int
1645 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type)
1646 {
1647 major_t major;
1648 minor_t minor;
1649 dev_t dev;
1650 dev_info_t *dip;
1651 cons_state_t *sp;
1652 cons_prop_t *prop;
1653 const char *pushmod;
1654
1655 /*
1656 * Retrieve the state information
1657 * Some platforms may use the old-style "consconfig" to configure
1658 * console stream modules but may also support devices that happen
1659 * to match a rule in /etc/dacf.conf. This will cause a problem
1660 * since the console state structure will not be initialized.
1661 * In that case, these entry points should silently fail and
1662 * permit console to be plumbed later in boot.
1663 */
1664 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1665 return (DACF_FAILURE);
1666
1667 dip = dacf_devinfo_node(minor_hdl);
1668 major = ddi_driver_major(dip);
1669 ASSERT(major != DDI_MAJOR_T_NONE);
1670 minor = dacf_minor_number(minor_hdl);
1671 dev = makedevice(major, minor);
1672 ASSERT(dev != NODEV);
1673
1674 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n",
1675 (char *)dacf_driver_name(minor_hdl), dev, major);
1676
1677 /* Access to the global variables is synchronized */
1678 mutex_enter(&sp->cons_lock);
1679
1680 /*
1681 * Check if the keyboard/mouse has already configured.
1682 */
1683 if (consconfig_find_dev(sp, dev) != NULL) {
1684 mutex_exit(&sp->cons_lock);
1685 return (DACF_SUCCESS);
1686 }
1687
1688 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP);
1689
1690 /* Config the new keyboard/mouse device */
1691 prop->cp_dev = dev;
1692
1693 pushmod = dacf_get_arg(arg_hdl, "pushmod");
1694 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP);
1695
1696 prop->cp_type = type;
1697 if (do_config(sp, prop) != DACF_SUCCESS) {
1698 /*
1699 * The keyboard/mouse node failed to open.
1700 * Set the major and minor numbers to 0 so
1701 * kb_unconfig/ms_unconfig won't unconfigure
1702 * this node if it is detached.
1703 */
1704 mutex_exit(&sp->cons_lock);
1705 consconfig_free_prop(prop);
1706 return (DACF_FAILURE);
1707 }
1708
1709 consconfig_add_dev(sp, prop);
1710
1711 /*
1712 * See if there was a problem with the console keyboard during boot.
1713 * If so, try to register polled input for this keyboard.
1714 */
1715 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) {
1716 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1717 sp->cons_keyboard_problem = B_FALSE;
1718 }
1719
1720 /* Prevent autodetach due to memory pressure */
1721 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
1722
1723 mutex_exit(&sp->cons_lock);
1724
1725 return (DACF_SUCCESS);
1726 }
1727
1728 static int
1729 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl)
1730 {
1731 _NOTE(ARGUNUSED(arg_hdl))
1732
1733 major_t major;
1734 minor_t minor;
1735 dev_t dev;
1736 dev_info_t *dip;
1737 cons_state_t *sp;
1738 cons_prop_t *prop;
1739
1740 /*
1741 * Retrieve the state information
1742 * So if there isn't a state available, then this entry point just
1743 * returns. See note in kb_config().
1744 */
1745 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1746 return (DACF_SUCCESS);
1747
1748 dip = dacf_devinfo_node(minor_hdl);
1749 major = ddi_driver_major(dip);
1750 ASSERT(major != DDI_MAJOR_T_NONE);
1751 minor = dacf_minor_number(minor_hdl);
1752 dev = makedevice(major, minor);
1753 ASSERT(dev != NODEV);
1754
1755 /*
1756 * Check if the keyboard/mouse that is being detached
1757 * is the console keyboard/mouse or not.
1758 */
1759 mutex_enter(&sp->cons_lock);
1760 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1761 mutex_exit(&sp->cons_lock);
1762 return (DACF_SUCCESS);
1763 }
1764
1765 /*
1766 * This dev may be opened physically and then hotplugged out.
1767 */
1768 if (prop->cp_muxid != -1) {
1769 (void) do_unconfig(sp, prop);
1770 consconfig_rem_dev(sp, dev);
1771 }
1772
1773 mutex_exit(&sp->cons_lock);
1774
1775 return (DACF_SUCCESS);
1776 }
1777
1778 /*
1779 * This is the post-attach / pre-detach action function for the keyboard
1780 * and mouse. This function is associated with a node type in /etc/dacf.conf.
1781 */
1782 static int
1783 kb_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_KBD));
1788 }
1789
1790 static int
1791 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1792 {
1793 _NOTE(ARGUNUSED(flags))
1794
1795 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS));
1796 }
1797
1798 static int
1799 kb_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 static int
1807 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1808 {
1809 _NOTE(ARGUNUSED(flags))
1810
1811 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1812 }
1813
1814 /*
1815 * consconfig_link and consconfig_unlink are provided to support
1816 * direct access to physical keyboard/mouse underlying conskbd/
1817 * consms.
1818 * When the keyboard/mouse is opened physically via its device
1819 * file, it will be unlinked from the virtual one, and when it
1820 * is closed physically, it will be linked back under the virtual
1821 * one.
1822 */
1823 void
1824 consconfig_link(major_t major, minor_t minor)
1825 {
1826 char buf[MAXPATHLEN];
1827 dev_t dev;
1828 cons_state_t *sp;
1829 cons_prop_t *prop;
1830
1831 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1832 return;
1833
1834 dev = makedevice(major, minor);
1835 ASSERT(dev != NODEV);
1836
1837 mutex_enter(&sp->cons_lock);
1838 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1839 mutex_exit(&sp->cons_lock);
1840 return;
1841 }
1842
1843 if (do_config(sp, prop) != DACF_SUCCESS) {
1844 (void) ddi_dev_pathname(dev, 0, buf);
1845 if (prop->cp_type == CONS_KBD)
1846 cmn_err(CE_WARN, "Failed to relink the keyboard "
1847 "(%s) underneath virtual keyboard", buf);
1848 else
1849 cmn_err(CE_WARN, "Failed to relink the mouse "
1850 "(%s) underneath virtual mouse", buf);
1851 consconfig_rem_dev(sp, dev);
1852 }
1853
1854 mutex_exit(&sp->cons_lock);
1855 }
1856
1857
1858 int
1859 consconfig_unlink(major_t major, minor_t minor)
1860 {
1861 dev_t dev;
1862 cons_state_t *sp;
1863 cons_prop_t *prop;
1864 int error;
1865
1866 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1867 return (DACF_SUCCESS);
1868
1869 dev = makedevice(major, minor);
1870 ASSERT(dev != NODEV);
1871
1872 mutex_enter(&sp->cons_lock);
1873 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1874 mutex_exit(&sp->cons_lock);
1875 return (DACF_FAILURE);
1876 }
1877
1878 error = do_unconfig(sp, prop);
1879
1880 /*
1881 * Keep this dev on the list, for this dev is still online.
1882 */
1883 mutex_exit(&sp->cons_lock);
1884
1885 return (error);
1886 }
1887
1888 /*
1889 * Routine to set baud rate, bits-per-char, parity and stop bits
1890 * on the console line when necessary.
1891 */
1892 static int
1893 consconfig_setmodes(dev_t dev, struct termios *termiosp)
1894 {
1895 char buf[MAXPATHLEN];
1896 int len = MAXPATHLEN;
1897 char name[16];
1898 int ppos, i;
1899 char *path;
1900 dev_t tdev;
1901
1902 /*
1903 * First, search for a devalias which matches this dev_t.
1904 * Try all of ttya through ttyz until no such alias
1905 */
1906 (void) strcpy(name, "ttya");
1907 for (i = 0; i < ('z'-'a'); i++) {
1908 name[3] = 'a' + i; /* increment device name */
1909 path = get_alias(name, buf);
1910 if (path == NULL)
1911 return (1);
1912
1913 tdev = ddi_pathname_to_dev_t(path);
1914 if (tdev == dev)
1915 break; /* Exit loop if found */
1916 }
1917
1918 if (i >= ('z'-'a'))
1919 return (1); /* If we didn't find it, return */
1920
1921 /*
1922 * Now that we know which "tty" this corresponds to, retrieve
1923 * the "ttya-mode" options property, which tells us how to configure
1924 * the line.
1925 */
1926 (void) strcpy(name, "ttya-mode"); /* name of option we want */
1927 name[3] = 'a' + i; /* Adjust to correct line */
1928
1929 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name,
1930 buf, &len) != DDI_PROP_SUCCESS)
1931 return (1); /* if no such option, just return */
1932
1933 /*
1934 * The IEEE 1275 standard specifies that /aliases string property
1935 * values should be null-terminated. Unfortunately the reality
1936 * is that most aren't and the OBP can't easily be modified to
1937 * add null termination to these strings. So we'll add the
1938 * null termination here. If the string already contains a
1939 * null termination character then that's ok too because we'll
1940 * just be adding a second one.
1941 */
1942 buf[len] = '\0';
1943
1944 /* Clear out options we will be setting */
1945 termiosp->c_cflag &=
1946 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB);
1947
1948 /* Clear options which potentially conflict with new settings */
1949 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT);
1950
1951 /*
1952 * Now, parse the string. Wish I could use sscanf().
1953 * Format 9600,8,n,1,-
1954 * baud rate, bits-per-char, parity, stop-bits, ignored
1955 */
1956 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */
1957 if ((buf[ppos] == 0) || (buf[ppos] == ','))
1958 break;
1959 }
1960
1961 if (buf[ppos] != ',') {
1962 cmn_err(CE_WARN, "consconfig_setmodes: "
1963 "invalid mode string %s", buf);
1964 return (1);
1965 }
1966
1967 for (i = 0; i < MAX_SPEEDS; i++) {
1968 if (strncmp(buf, speedtab[i].name, ppos) == 0)
1969 break;
1970 }
1971
1972 if (i >= MAX_SPEEDS) {
1973 cmn_err(CE_WARN,
1974 "consconfig_setmodes: unrecognized speed in %s", buf);
1975 return (1);
1976 }
1977
1978 /* Found the baud rate, set it */
1979 termiosp->c_cflag |= speedtab[i].code & CBAUD;
1980 if (speedtab[i].code > 16) /* cfsetospeed! */
1981 termiosp->c_cflag |= CBAUDEXT;
1982
1983 /* Set bits per character */
1984 switch (buf[ppos+1]) {
1985 case '8':
1986 termiosp->c_cflag |= CS8;
1987 break;
1988 case '7':
1989 termiosp->c_cflag |= CS7;
1990 break;
1991 default:
1992 cmn_err(CE_WARN,
1993 "consconfig_setmodes: illegal bits-per-char %s", buf);
1994 return (1);
1995 }
1996
1997 /* Set parity */
1998 switch (buf[ppos+3]) {
1999 case 'o':
2000 termiosp->c_cflag |= PARENB | PARODD;
2001 break;
2002 case 'e':
2003 termiosp->c_cflag |= PARENB; /* enabled, not odd */
2004 break;
2005 case 'n':
2006 break; /* not enabled. */
2007 default:
2008 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf);
2009 return (1);
2010 }
2011
2012 /* Set stop bits */
2013 switch (buf[ppos+5]) {
2014 case '1':
2015 break; /* No extra stop bit */
2016 case '2':
2017 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */
2018 break;
2019 default:
2020 cmn_err(CE_WARN, "consconfig_setmodes: "
2021 "illegal stop bits %s", buf);
2022 return (1);
2023 }
2024
2025 return (0);
2026 }
2027
2028 /*
2029 * Check to see if underlying keyboard devices are still online,
2030 * if any one is offline now, unlink it.
2031 */
2032 static void
2033 consconfig_check_phys_kbd(cons_state_t *sp)
2034 {
2035 ldi_handle_t kb_lh;
2036 cons_prop_t *prop;
2037 int error;
2038 int rval;
2039
2040 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2041 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1))
2042 continue;
2043
2044 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR,
2045 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li);
2046
2047 if (error) {
2048 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK,
2049 prop->cp_muxid, FKIOCTL, kcred, &rval);
2050 prop->cp_dev = NODEV;
2051 } else {
2052 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred);
2053 }
2054 }
2055
2056 /*
2057 * Remove all disconnected keyboards,
2058 * whose dev is turned into NODEV above.
2059 */
2060 consconfig_rem_dev(sp, NODEV);
2061 }
2062
2063 /*
2064 * Remove devices according to dev, which may be NODEV
2065 */
2066 static void
2067 consconfig_rem_dev(cons_state_t *sp, dev_t dev)
2068 {
2069 cons_prop_t *prop;
2070 cons_prop_t *prev_prop;
2071 cons_prop_t *tmp_prop;
2072 cons_prop_t *head_prop;
2073
2074 head_prop = NULL;
2075 prev_prop = NULL;
2076 for (prop = sp->cons_km_prop; prop != NULL; ) {
2077 if (prop->cp_dev == dev) {
2078 tmp_prop = prop->cp_next;
2079 consconfig_free_prop(prop);
2080 prop = tmp_prop;
2081 if (prev_prop)
2082 prev_prop->cp_next = prop;
2083 } else {
2084 if (head_prop == NULL)
2085 head_prop = prop;
2086 prev_prop = prop;
2087 prop = prop->cp_next;
2088 }
2089 }
2090 sp->cons_km_prop = head_prop;
2091 }
2092
2093 /*
2094 * Add a dev according to prop
2095 */
2096 static void
2097 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop)
2098 {
2099 prop->cp_next = sp->cons_km_prop;
2100 sp->cons_km_prop = prop;
2101 }
2102
2103 /*
2104 * Find a device from our list according to dev
2105 */
2106 static cons_prop_t *
2107 consconfig_find_dev(cons_state_t *sp, dev_t dev)
2108 {
2109 cons_prop_t *prop;
2110
2111 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2112 if (prop->cp_dev == dev)
2113 break;
2114 }
2115
2116 return (prop);
2117 }
2118
2119 /*
2120 * Free a cons prop associated with a keyboard or mouse
2121 */
2122 static void
2123 consconfig_free_prop(cons_prop_t *prop)
2124 {
2125 if (prop->cp_pushmod)
2126 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1);
2127 kmem_free(prop, sizeof (cons_prop_t));
2128 }
2129
2130 /*
2131 * The early boot code can't print to a usb serial device or the
2132 * graphical boot screen.
2133 *
2134 * The early boot messages are saved in a buffer at the address indicated
2135 * by "deferred-console-buf" This function flushes the message to the
2136 * current console now that it is set up.
2137 */
2138 static void
2139 flush_deferred_console_buf(void)
2140 {
2141 int rval;
2142 vnode_t *vp;
2143 uint_t defcons_buf;
2144 char *kc, *bc, *defcons_kern_buf;
2145
2146 /* defcons_buf is in low memory, so an int works here */
2147 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
2148 DDI_PROP_DONTPASS, "deferred-console-buf", 0);
2149
2150 if (defcons_buf == 0)
2151 return;
2152
2153 /*
2154 * After consconfig() and before userland opens /dev/sysmsg,
2155 * console I/O is goes to polled I/O entry points.
2156 *
2157 * If usb-serial doesn't implement polled I/O, we need
2158 * to open /dev/console now to get kernel console I/O to work.
2159 * We also push ttcompat and ldterm explicitly to get the
2160 * correct output format (autopush isn't set up yet). We
2161 * ignore push errors because they are non-fatal.
2162 * Note that opening /dev/console causes rconsvp to be
2163 * opened as well.
2164 */
2165 if (cons_polledio == NULL) {
2166 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY,
2167 0, &vp, 0, 0) != 0)
2168 return;
2169
2170 if (rconsvp) {
2171 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2172 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval);
2173 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2174 (intptr_t)"ttcompat", FKIOCTL, K_TO_K,
2175 kcred, &rval);
2176 }
2177 }
2178
2179 /*
2180 * Copy message to a kernel buffer. Various kernel routines
2181 * expect buffer to be above kernelbase
2182 */
2183 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP);
2184 bc = (char *)(uintptr_t)defcons_buf;
2185 while (*kc++ = *bc++)
2186 ;
2187 console_printf("%s", defcons_kern_buf);
2188
2189 kmem_free(defcons_kern_buf, MMU_PAGESIZE);
2190 }
2191
2192 boolean_t
2193 consconfig_console_is_tipline(void)
2194 {
2195 cons_state_t *sp;
2196
2197 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2198 return (B_FALSE);
2199
2200 if (sp->cons_input_type == CONSOLE_TIP)
2201 return (B_TRUE);
2202
2203 return (B_FALSE);
2204 }
2205
2206 boolean_t
2207 consconfig_dacf_initialized(void)
2208 {
2209 cons_state_t *sp;
2210
2211 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2212 return (B_FALSE);
2213
2214 return (sp->cons_initialized);
2215 }