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 {"1000000", B1000000}, {"1152000", B1152000}, {"1500000", B1500000},
239 {"2000000", B2000000}, {"2500000", B2500000}, {"3000000", B3000000},
240 {"3500000", B3500000}, {"4000000", B4000000}, {"", 0}
241 };
242
243 static const int MAX_SPEEDS = sizeof (speedtab) / sizeof (speedtab[0]);
244
245 static dacf_op_t kbconfig_op[] = {
246 { DACF_OPID_POSTATTACH, kb_config },
247 { DACF_OPID_PREDETACH, kb_unconfig },
248 { DACF_OPID_END, NULL },
249 };
250
251 static dacf_op_t msconfig_op[] = {
252 { DACF_OPID_POSTATTACH, ms_config },
253 { DACF_OPID_PREDETACH, ms_unconfig },
254 { DACF_OPID_END, NULL },
255 };
256
257 static dacf_opset_t opsets[] = {
258 { "kb_config", kbconfig_op },
259 { "ms_config", msconfig_op },
260 { NULL, NULL }
261 };
262
263 struct dacfsw dacfsw = {
264 DACF_MODREV_1,
265 opsets,
266 };
267
268 static struct modldacf modldacf = {
269 &mod_dacfops, /* Type of module */
270 "Consconfig DACF",
271 &dacfsw
272 };
273
274 static struct modlinkage modlinkage = {
275 MODREV_1, (void *)&modldacf, NULL
276 };
277
278 int
_init(void)279 _init(void)
280 {
281 return (mod_install(&modlinkage));
282 }
283
284 int
_fini(void)285 _fini(void)
286 {
287 /*
288 * This modules state is held in the kernel by space.c
289 * allowing this module to be unloaded.
290 */
291 return (mod_remove(&modlinkage));
292 }
293
294 int
_info(struct modinfo * modinfop)295 _info(struct modinfo *modinfop)
296 {
297 return (mod_info(&modlinkage, modinfop));
298 }
299
300 /*PRINTFLIKE2*/
301 static void consconfig_dprintf(int, const char *, ...)
302 __KPRINTFLIKE(2);
303
304 static void
consconfig_dprintf(int l,const char * fmt,...)305 consconfig_dprintf(int l, const char *fmt, ...)
306 {
307 va_list ap;
308
309 #ifndef DEBUG
310 if (!l) {
311 return;
312 }
313 #endif /* DEBUG */
314 if (l < consconfig_errlevel) {
315 return;
316 }
317
318 va_start(ap, fmt);
319 (void) vprintf(fmt, ap);
320 va_end(ap);
321 }
322
323 /*
324 * Return a property value for the specified alias in /aliases.
325 */
326 char *
get_alias(char * alias,char * buf)327 get_alias(char *alias, char *buf)
328 {
329 pnode_t node;
330 int len;
331
332 /* The /aliases node only exists in OBP >= 2.4. */
333 if ((node = prom_alias_node()) == OBP_BADNODE)
334 return (NULL);
335
336 if ((len = prom_getproplen(node, (caddr_t)alias)) <= 0)
337 return (NULL);
338
339 (void) prom_getprop(node, (caddr_t)alias, (caddr_t)buf);
340
341 /*
342 * The IEEE 1275 standard specifies that /aliases string property
343 * values should be null-terminated. Unfortunatly the reality
344 * is that most aren't and the OBP can't easily be modified to
345 * add null termination to these strings. So we'll add the
346 * null termination here. If the string already contains a
347 * null termination character then that's ok too because we'll
348 * just be adding a second one.
349 */
350 buf[len] = '\0';
351
352 prom_pathname(buf);
353 return (buf);
354 }
355
356 /*
357 * i_consconfig_createvp:
358 * This routine is a convenience routine that is passed a path and returns
359 * a vnode.
360 */
361 static vnode_t *
i_consconfig_createvp(char * path)362 i_consconfig_createvp(char *path)
363 {
364 int error;
365 vnode_t *vp;
366 char *buf = NULL, *fullpath;
367
368 DPRINTF(DPRINT_L0, "i_consconfig_createvp: %s\n", path);
369 fullpath = kmem_alloc(MAXPATHLEN, KM_SLEEP);
370
371 if (strchr(path, ':') == NULL) {
372 /* convert an OBP path to a /devices path */
373 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
374 if (i_ddi_prompath_to_devfspath(path, buf) != DDI_SUCCESS) {
375 kmem_free(buf, MAXPATHLEN);
376 kmem_free(fullpath, MAXPATHLEN);
377 return (NULL);
378 }
379 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", buf);
380 kmem_free(buf, MAXPATHLEN);
381 } else {
382 /* convert a devfs path to a /devices path */
383 (void) snprintf(fullpath, MAXPATHLEN, "/devices%s", path);
384 }
385
386 DPRINTF(DPRINT_L0, "lookupname(%s)\n", fullpath);
387 error = lookupname(fullpath, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp);
388 kmem_free(fullpath, MAXPATHLEN);
389 if (error)
390 return (NULL);
391
392 DPRINTF(DPRINT_L0, "create vnode = 0x%p - dev 0x%lx\n", vp, vp->v_rdev);
393 ASSERT(vn_matchops(vp, spec_getvnodeops()));
394
395 return (vp);
396 }
397
398 /*
399 * consconfig_print_paths:
400 * Function to print out the various paths
401 */
402 static void
consconfig_print_paths(void)403 consconfig_print_paths(void)
404 {
405 char *path;
406
407 if (usb_kb_path != NULL)
408 cmn_err(CE_WARN,
409 "consconfig_dacf:usb_kb_path has been deprecated, "
410 "use consconfig:usb_kb_path instead");
411
412 if (usb_ms_path != NULL)
413 cmn_err(CE_WARN,
414 "consconfig_dacf:usb_ms_path has been deprecated, "
415 "use consconfig:usb_ms_path instead");
416
417 if (consconfig_errlevel > DPRINT_L0)
418 return;
419
420 path = NULL;
421 if (consconfig_usb_kb_path != NULL)
422 path = consconfig_usb_kb_path;
423 else if (usb_kb_path != NULL)
424 path = usb_kb_path;
425 if (path != NULL)
426 DPRINTF(DPRINT_L0, "usb keyboard path = %s\n", path);
427
428 path = plat_kbdpath();
429 if (path != NULL)
430 DPRINTF(DPRINT_L0, "keyboard path = %s\n", path);
431
432 path = NULL;
433 if (consconfig_usb_ms_path != NULL)
434 path = consconfig_usb_ms_path;
435 else if (usb_ms_path != NULL)
436 path = usb_ms_path;
437 if (path != NULL)
438 DPRINTF(DPRINT_L0, "usb mouse path = %s\n", path);
439
440 path = plat_mousepath();
441 if (path != NULL)
442 DPRINTF(DPRINT_L0, "mouse path = %s\n", path);
443
444 path = plat_stdinpath();
445 if (path != NULL)
446 DPRINTF(DPRINT_L0, "stdin path = %s\n", path);
447
448 path = plat_stdoutpath();
449 if (path != NULL)
450 DPRINTF(DPRINT_L0, "stdout path = %s\n", path);
451
452 path = plat_diagpath();
453 if (path != NULL)
454 DPRINTF(DPRINT_L0, "diag path = %s\n", path);
455
456 path = plat_fbpath();
457 if (path != NULL)
458 DPRINTF(DPRINT_L0, "fb path = %s\n", path);
459 }
460
461 /*
462 * consconfig_kbd_abort_enable:
463 * Send the CONSSETABORTENABLE ioctl to the lower layers. This ioctl
464 * will only be sent to the device if it is the console device.
465 * This ioctl tells the device to pay attention to abort sequences.
466 * In the case of kbtrans, this would tell the driver to pay attention
467 * to the two key abort sequences like STOP-A. In the case of the
468 * serial keyboard, it would be an abort sequence like a break.
469 */
470 static int
consconfig_kbd_abort_enable(ldi_handle_t lh)471 consconfig_kbd_abort_enable(ldi_handle_t lh)
472 {
473 int err, rval;
474
475 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_enable\n");
476
477 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_TRUE,
478 FKIOCTL, kcred, &rval);
479 return (err);
480 }
481
482 /*
483 * consconfig_kbd_abort_disable:
484 * Send CONSSETABORTENABLE ioctl to lower layers. This ioctl
485 * will only be sent to the device if it is the console device.
486 * This ioctl tells the physical device to ignore abort sequences,
487 * and send the sequences up to virtual keyboard(conskbd) so that
488 * STOP and A (or F1 and A) can be combined.
489 */
490 static int
consconfig_kbd_abort_disable(ldi_handle_t lh)491 consconfig_kbd_abort_disable(ldi_handle_t lh)
492 {
493 int err, rval;
494
495 DPRINTF(DPRINT_L0, "consconfig_kbd_abort_disable\n");
496
497 err = ldi_ioctl(lh, CONSSETABORTENABLE, (uintptr_t)B_FALSE,
498 FKIOCTL, kcred, &rval);
499 return (err);
500 }
501
502 #ifdef _HAVE_TEM_FIRMWARE
503 static int
consconfig_tem_supported(cons_state_t * sp)504 consconfig_tem_supported(cons_state_t *sp)
505 {
506 dev_t dev;
507 dev_info_t *dip;
508 int *int_array;
509 uint_t nint;
510 int rv = 0;
511
512 if (sp->cons_fb_path == NULL)
513 return (0);
514
515 if ((dev = ddi_pathname_to_dev_t(sp->cons_fb_path)) == NODEV)
516 return (0); /* warning printed later by common code */
517
518 /*
519 * Here we hold the driver and check "tem-support" property.
520 * We're doing this with e_ddi_hold_devi_by_dev and
521 * ddi_prop_lookup_int_array without opening the driver since
522 * some video cards that don't support the kernel terminal
523 * emulator could hang or crash if opened too early during
524 * boot.
525 */
526 if ((dip = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) {
527 cmn_err(CE_WARN, "consconfig: cannot hold fb dev %s",
528 sp->cons_fb_path);
529 return (0);
530 }
531
532 /*
533 * Check that the tem-support property exists AND that
534 * it is equal to 1.
535 */
536 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,
537 DDI_PROP_DONTPASS, "tem-support", &int_array, &nint) ==
538 DDI_SUCCESS) {
539 if (nint > 0)
540 rv = int_array[0] == 1;
541 ddi_prop_free(int_array);
542 }
543
544 ddi_release_devi(dip);
545
546 return (rv);
547 }
548 #endif /* _HAVE_TEM_FIRMWARE */
549
550 /*
551 * consconfig_get_polledio:
552 * Query the console with the CONSPOLLEDIO ioctl.
553 * The polled I/O routines are used by debuggers to perform I/O while
554 * interrupts and normal kernel services are disabled.
555 */
556 static cons_polledio_t *
consconfig_get_polledio(ldi_handle_t lh)557 consconfig_get_polledio(ldi_handle_t lh)
558 {
559 int err, rval;
560 struct strioctl strioc;
561 cons_polledio_t *polled_io;
562
563 /*
564 * Setup the ioctl to be sent down to the lower driver.
565 */
566 strioc.ic_cmd = CONSOPENPOLLEDIO;
567 strioc.ic_timout = INFTIM;
568 strioc.ic_len = sizeof (polled_io);
569 strioc.ic_dp = (char *)&polled_io;
570
571 /*
572 * Send the ioctl to the driver. The ioctl will wait for
573 * the response to come back from wc. wc has already issued
574 * the CONSOPENPOLLEDIO to the lower layer driver.
575 */
576 err = ldi_ioctl(lh, I_STR, (intptr_t)&strioc, FKIOCTL, kcred, &rval);
577
578 if (err != 0) {
579 /*
580 * If the lower driver does not support polled I/O, then
581 * return NULL. This will be the case if the driver does
582 * not handle polled I/O, or OBP is going to handle polled
583 * I/O for the device.
584 */
585
586 return (NULL);
587 }
588
589 /*
590 * Return the polled I/O structure.
591 */
592 return (polled_io);
593 }
594
595 /*
596 * consconfig_setup_polledio:
597 * This routine does the setup work for polled I/O. First we get
598 * the polled_io structure from the lower layers
599 * and then we register the polled I/O
600 * callbacks with the debugger that will be using them.
601 */
602 static void
consconfig_setup_polledio(cons_state_t * sp,dev_t dev)603 consconfig_setup_polledio(cons_state_t *sp, dev_t dev)
604 {
605 cons_polledio_t *polled_io;
606 ldi_handle_t lh;
607
608 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: start\n");
609
610
611 if (ldi_open_by_dev(&dev, OTYP_CHR,
612 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li) != 0)
613 return;
614
615
616 /*
617 * Get the polled io routines so that we can use this
618 * device with the debuggers.
619 */
620 polled_io = consconfig_get_polledio(lh);
621
622 /*
623 * If the get polledio failed, then we do not want to throw
624 * the polled I/O switch.
625 */
626 if (polled_io == NULL) {
627 DPRINTF(DPRINT_L0,
628 "consconfig_setup_polledio: get_polledio failed\n");
629 (void) ldi_close(lh, FREAD|FWRITE, kcred);
630 return;
631 }
632
633 /* Initialize the polled input */
634 polled_io_init();
635
636 /* Register the callbacks */
637 DPRINTF(DPRINT_L0,
638 "consconfig_setup_polledio: registering callbacks\n");
639 (void) polled_io_register_callbacks(polled_io, 0);
640
641 (void) ldi_close(lh, FREAD|FWRITE, kcred);
642
643 DPRINTF(DPRINT_L0, "consconfig_setup_polledio: end\n");
644 }
645
646 static cons_state_t *
consconfig_state_init(void)647 consconfig_state_init(void)
648 {
649 cons_state_t *sp;
650 int rval;
651
652 /* Initialize console information */
653 sp = kmem_zalloc(sizeof (cons_state_t), KM_SLEEP);
654 sp->cons_keyboard_problem = B_FALSE;
655
656 mutex_init(&sp->cons_lock, NULL, MUTEX_DRIVER, NULL);
657
658 /* check if consconfig:usb_kb_path is set in /etc/system */
659 consconfig_usb_kb_path = consconfig_get_usb_kb_path();
660
661 /* check if consconfig:usb_ms_path is set in /etc/system */
662 consconfig_usb_ms_path = consconfig_get_usb_ms_path();
663
664 consconfig_print_paths();
665
666 /* init external globals */
667 stdoutdev = NODEV;
668
669 /*
670 * Find keyboard, mouse, stdin, stdout and diag devices, if they
671 * exist on this platform.
672 */
673 sp->cons_diag_path = plat_diagpath();
674
675 if (consconfig_usb_kb_path != NULL) {
676 sp->cons_keyboard_path = consconfig_usb_kb_path;
677 } else if (usb_kb_path != NULL) {
678 sp->cons_keyboard_path = usb_kb_path;
679 } else {
680 sp->cons_keyboard_path = plat_kbdpath();
681 }
682
683 if (consconfig_usb_ms_path != NULL) {
684 sp->cons_mouse_path = consconfig_usb_ms_path;
685 } else if (usb_ms_path != NULL) {
686 sp->cons_mouse_path = usb_ms_path;
687 } else {
688 sp->cons_mouse_path = plat_mousepath();
689 }
690
691 /* Identify the stdout driver */
692 sp->cons_stdout_path = plat_stdoutpath();
693 sp->cons_stdout_is_fb = plat_stdout_is_framebuffer();
694
695 sp->cons_stdin_is_kbd = plat_stdin_is_keyboard();
696
697 if (sp->cons_stdin_is_kbd &&
698 (usb_kb_path != NULL || consconfig_usb_kb_path != NULL)) {
699 sp->cons_stdin_path = sp->cons_keyboard_path;
700 } else {
701 /*
702 * The standard in device may or may not be the same as
703 * the keyboard. Even if the keyboard is not the
704 * standard input, the keyboard console stream will
705 * still be built if the keyboard alias provided by the
706 * firmware exists and is valid.
707 */
708 sp->cons_stdin_path = plat_stdinpath();
709 }
710
711 if (sp->cons_stdout_is_fb) {
712 sp->cons_fb_path = sp->cons_stdout_path;
713
714 #ifdef _HAVE_TEM_FIRMWARE
715 sp->cons_tem_supported = consconfig_tem_supported(sp);
716
717 /*
718 * Systems which offer a virtual console must use that
719 * as a fallback whenever the fb doesn't support tem.
720 * Such systems cannot render characters to the screen
721 * using OBP.
722 */
723 if (!sp->cons_tem_supported) {
724 char *path;
725
726 if (plat_virtual_console_path(&path) >= 0) {
727 sp->cons_stdin_is_kbd = 0;
728 sp->cons_stdout_is_fb = 0;
729 sp->cons_stdin_path = path;
730 sp->cons_stdout_path = path;
731 sp->cons_fb_path = plat_fbpath();
732
733 cmn_err(CE_WARN,
734 "%s doesn't support terminal emulation "
735 "mode; switching to virtual console.",
736 sp->cons_fb_path);
737 }
738 }
739 #endif /* _HAVE_TEM_FIRMWARE */
740 } else {
741 sp->cons_fb_path = plat_fbpath();
742 #ifdef _HAVE_TEM_FIRMWARE
743 sp->cons_tem_supported = consconfig_tem_supported(sp);
744 #endif /* _HAVE_TEM_FIRMWARE */
745 }
746
747 sp->cons_li = ldi_ident_from_anon();
748
749 /* Save the pointer for retrieval by the dacf functions */
750 rval = space_store("consconfig", (uintptr_t)sp);
751 ASSERT(rval == 0);
752
753 return (sp);
754 }
755
756 static int
consconfig_relink_wc(cons_state_t * sp,ldi_handle_t new_lh,int * muxid)757 consconfig_relink_wc(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
758 {
759 int err, rval;
760 ldi_handle_t wc_lh;
761 dev_t wc_dev;
762
763 ASSERT(muxid != NULL);
764
765 /*
766 * NOTE: we could be in a dacf callback context right now. normally
767 * it's not legal to call any ldi_open_*() function from this context
768 * because we're currently holding device tree locks and if the
769 * ldi_open_*() call could try to acquire other device tree locks
770 * (to attach the device we're trying to open.) if this happens then
771 * we could deadlock. To avoid this situation, during initialization
772 * we made sure to grab a hold on the dip of the device we plan to
773 * open so that it can never be detached. Then we use
774 * ldi_open_by_dev() to actually open the device since it will see
775 * that the device is already attached and held and instead of
776 * acquire any locks it will only increase the reference count
777 * on the device.
778 */
779 wc_dev = sp->cons_wc_vp->v_rdev;
780 err = ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
781 kcred, &wc_lh, sp->cons_li);
782 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
783 if (err) {
784 cmn_err(CE_WARN, "consconfig_relink_wc: "
785 "unable to open wc device");
786 return (err);
787 }
788
789 if (new_lh != NULL) {
790 DPRINTF(DPRINT_L0, "linking stream under wc\n");
791
792 err = ldi_ioctl(wc_lh, I_PLINK, (uintptr_t)new_lh,
793 FKIOCTL, kcred, muxid);
794 if (err != 0) {
795 cmn_err(CE_WARN, "consconfig_relink_wc: "
796 "wc link failed, error %d", err);
797 }
798 } else {
799 DPRINTF(DPRINT_L0, "unlinking stream from under wc\n");
800
801 err = ldi_ioctl(wc_lh, I_PUNLINK, *muxid,
802 FKIOCTL, kcred, &rval);
803 if (err != 0) {
804 cmn_err(CE_WARN, "consconfig_relink_wc: "
805 "wc unlink failed, error %d", err);
806 } else {
807 *muxid = -1;
808 }
809 }
810
811 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
812 return (err);
813 }
814
815 static void
cons_build_upper_layer(cons_state_t * sp)816 cons_build_upper_layer(cons_state_t *sp)
817 {
818 ldi_handle_t wc_lh;
819 struct strioctl strioc;
820 int rval;
821 dev_t dev;
822 dev_t wc_dev;
823
824 /*
825 * Build the wc->conskbd portion of the keyboard console stream.
826 * Even if no keyboard is attached to the system, the upper
827 * layer of the stream will be built. If the user attaches
828 * a keyboard after the system is booted, the keyboard driver
829 * and module will be linked under conskbd.
830 *
831 * Errors are generally ignored here because conskbd and wc
832 * are pseudo drivers and should be present on the system.
833 */
834
835 /* open the console keyboard device. will never be closed */
836 if (ldi_open_by_name(CONSKBD_PATH, FREAD|FWRITE|FNOCTTY,
837 kcred, &sp->conskbd_lh, sp->cons_li) != 0) {
838 panic("consconfig: unable to open conskbd device");
839 /*NOTREACHED*/
840 }
841
842 DPRINTF(DPRINT_L0, "conskbd_lh = %p\n", sp->conskbd_lh);
843
844 /* open the console mouse device. will never be closed */
845 if (ldi_open_by_name(CONSMS_PATH, FREAD|FWRITE|FNOCTTY,
846 kcred, &sp->consms_lh, sp->cons_li) != 0) {
847 panic("consconfig: unable to open consms device");
848 /*NOTREACHED*/
849 }
850
851 DPRINTF(DPRINT_L0, "consms_lh = %p\n", sp->consms_lh);
852
853 /*
854 * Get a vnode for the wc device and then grab a hold on the
855 * device dip so it can never detach. We need to do this now
856 * because later we'll have to open the wc device in a context
857 * were it isn't safe to acquire any device tree locks (ie, during
858 * a dacf callback.)
859 */
860 sp->cons_wc_vp = i_consconfig_createvp(WC_PATH);
861 if (sp->cons_wc_vp == NULL)
862 panic("consconfig: unable to find wc device");
863
864 if (e_ddi_hold_devi_by_dev(sp->cons_wc_vp->v_rdev, 0) == NULL)
865 panic("consconfig: unable to hold wc device");
866
867 /*
868 * Build the wc->conskbd portion of the keyboard console stream.
869 * Even if no keyboard is attached to the system, the upper
870 * layer of the stream will be built. If the user attaches
871 * a keyboard after the system is booted, the keyboard driver
872 * and module will be linked under conskbd.
873 *
874 * The act of linking conskbd under wc will cause wc to
875 * query the lower layers about their polled I/O routines
876 * using CONSOPENPOLLEDIO. This will fail on this link because
877 * there is not a physical keyboard linked under conskbd.
878 *
879 * Since conskbd and wc are pseudo drivers, errors are
880 * generally ignored when linking and unlinking them.
881 */
882 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
883
884 /*
885 * Get a vnode for the redirection device. (It has the
886 * connection to the workstation console device wired into it,
887 * so that it's not necessary to establish the connection
888 * here. If the redirection device is ever generalized to
889 * handle multiple client devices, it won't be able to
890 * establish the connection itself, and we'll have to do it
891 * here.)
892 */
893 wsconsvp = i_consconfig_createvp(IWSCN_PATH);
894 if (wsconsvp == NULL) {
895 panic("consconfig: unable to find iwscn device");
896 /*NOTREACHED*/
897 }
898
899 if (cons_tem_disable)
900 return;
901
902 if (sp->cons_fb_path == NULL) {
903 #if defined(__x86)
904 if (sp->cons_stdout_is_fb)
905 cmn_err(CE_WARN, "consconfig: no screen found");
906 #endif
907 return;
908 }
909
910 /* make sure the frame buffer device exists */
911 dev = ddi_pathname_to_dev_t(sp->cons_fb_path);
912 if (dev == NODEV) {
913 cmn_err(CE_WARN, "consconfig: "
914 "cannot find driver for screen device %s",
915 sp->cons_fb_path);
916 return;
917 }
918
919 #ifdef _HAVE_TEM_FIRMWARE
920 /*
921 * If the underlying fb device doesn't support terminal emulation,
922 * we don't want to open the wc device (below) because it depends
923 * on features which aren't available (polled mode io).
924 */
925 if (!sp->cons_tem_supported)
926 return;
927 #endif /* _HAVE_TEM_FIRMWARE */
928
929 /* tell wc to open the frame buffer device */
930 wc_dev = sp->cons_wc_vp->v_rdev;
931 if (ldi_open_by_dev(&wc_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY, kcred,
932 &wc_lh, sp->cons_li)) {
933 cmn_err(CE_PANIC, "cons_build_upper_layer: "
934 "unable to open wc device");
935 }
936 ASSERT(wc_dev == sp->cons_wc_vp->v_rdev);
937
938 strioc.ic_cmd = WC_OPEN_FB;
939 strioc.ic_timout = INFTIM;
940 strioc.ic_len = strlen(sp->cons_fb_path) + 1;
941 strioc.ic_dp = sp->cons_fb_path;
942
943 if (ldi_ioctl(wc_lh, I_STR, (intptr_t)&strioc,
944 FKIOCTL, kcred, &rval) == 0)
945 consmode = CONS_KFB;
946 else
947 cmn_err(CE_WARN,
948 "consconfig: terminal emulator failed to initialize");
949 (void) ldi_close(wc_lh, FREAD|FWRITE, kcred);
950 }
951
952 static void
consconfig_load_drivers(cons_state_t * sp)953 consconfig_load_drivers(cons_state_t *sp)
954 {
955 /*
956 * Calling ddi_pathname_to_dev_t may cause the USB Host Controller
957 * drivers to be loaded. Here we make sure that EHCI is loaded
958 * earlier than {U, O}HCI. The order here is important. As
959 * we have observed many systems on which hangs occur if the
960 * {U,O}HCI companion controllers take over control from the BIOS
961 * before EHCI does. These hangs are also caused by BIOSes leaving
962 * interrupt-on-port-change enabled in the ehci controller, so that
963 * when uhci/ohci reset themselves, it induces a port change on
964 * the ehci companion controller. Since there's no interrupt handler
965 * installed at the time, the moment that interrupt is unmasked, an
966 * interrupt storm will occur. All this is averted when ehci is
967 * loaded first. And now you know..... the REST of the story.
968 *
969 * Regardless of platform, ehci needs to initialize first to avoid
970 * unnecessary connects and disconnects on the companion controller
971 * when ehci sets up the routing.
972 *
973 * The same is generally true of xhci. Many platforms have routing
974 * between the xhci controller and the ehci controller. To avoid those
975 * same disconnects, we load xhci before ehci.
976 */
977 (void) ddi_hold_installed_driver(ddi_name_to_major("xhci"));
978 (void) ddi_hold_installed_driver(ddi_name_to_major("ehci"));
979 (void) ddi_hold_installed_driver(ddi_name_to_major("uhci"));
980 (void) ddi_hold_installed_driver(ddi_name_to_major("ohci"));
981
982 /*
983 * The attaching of the drivers will cause the creation of the
984 * keyboard and mouse minor nodes, which will in turn trigger the
985 * dacf framework to call the keyboard and mouse configuration
986 * tasks. See PSARC/1998/212 for more details about the dacf
987 * framework.
988 *
989 * on sparc, when the console is ttya, zs0 is stdin/stdout, and zs1
990 * is kb/mouse. zs0 must be attached before zs1. The zs driver
991 * is written this way and the hardware may depend on this, too.
992 * It would be better to enforce this by attaching zs in sibling
993 * order with a driver property, such as ddi-attachall.
994 */
995 if (sp->cons_stdin_path != NULL)
996 stdindev = ddi_pathname_to_dev_t(sp->cons_stdin_path);
997 if (stdindev == NODEV) {
998 DPRINTF(DPRINT_L0,
999 "!fail to attach stdin: %s\n", sp->cons_stdin_path);
1000 }
1001 if (sp->cons_stdout_path != NULL)
1002 stdoutdev = ddi_pathname_to_dev_t(sp->cons_stdout_path);
1003 if (sp->cons_keyboard_path != NULL)
1004 kbddev = ddi_pathname_to_dev_t(sp->cons_keyboard_path);
1005 if (sp->cons_mouse_path != NULL)
1006 mousedev = ddi_pathname_to_dev_t(sp->cons_mouse_path);
1007 if (sp->cons_diag_path != NULL)
1008 diagdev = ddi_pathname_to_dev_t(sp->cons_diag_path);
1009
1010 /*
1011 * On x86, make sure the fb driver is loaded even if we don't use it
1012 * for the console. This will ensure that we create a /dev/fb link
1013 * which is required to start Xorg.
1014 */
1015 #if defined(__x86)
1016 if (sp->cons_fb_path != NULL)
1017 fbdev = ddi_pathname_to_dev_t(sp->cons_fb_path);
1018 #endif
1019
1020 DPRINTF(DPRINT_L0, "stdindev %lx, stdoutdev %lx, kbddev %lx, "
1021 "mousedev %lx diagdev %lx\n", stdindev, stdoutdev, kbddev,
1022 mousedev, diagdev);
1023 }
1024
1025 #if !defined(__x86)
1026 void
consconfig_virtual_console_vp(cons_state_t * sp)1027 consconfig_virtual_console_vp(cons_state_t *sp)
1028 {
1029 char *virtual_cons_path;
1030
1031 if (plat_virtual_console_path(&virtual_cons_path) < 0)
1032 return;
1033
1034 DPRINTF(DPRINT_L0, "consconfig_virtual_console_vp: "
1035 "virtual console device path %s\n", virtual_cons_path);
1036
1037 ASSERT(sp->cons_stdout_path != NULL);
1038 if (strcmp(virtual_cons_path, sp->cons_stdout_path) == 0) {
1039 /* virtual console already in use */
1040 return;
1041 }
1042
1043 vsconsvp = i_consconfig_createvp(virtual_cons_path);
1044 if (vsconsvp == NULL) {
1045 cmn_err(CE_WARN, "consconfig_virtual_console_vp: "
1046 "unable to find serial virtual console device %s",
1047 virtual_cons_path);
1048 return;
1049 }
1050
1051 (void) e_ddi_hold_devi_by_dev(vsconsvp->v_rdev, 0);
1052 }
1053 #endif
1054
1055 static void
consconfig_init_framebuffer(cons_state_t * sp)1056 consconfig_init_framebuffer(cons_state_t *sp)
1057 {
1058 if (!sp->cons_stdout_is_fb)
1059 return;
1060
1061 DPRINTF(DPRINT_L0, "stdout is framebuffer\n");
1062 ASSERT(strcmp(sp->cons_fb_path, sp->cons_stdout_path) == 0);
1063
1064 /*
1065 * Console output is a framebuffer.
1066 * Find the framebuffer driver if we can, and make
1067 * ourselves a shadow vnode to track it with.
1068 */
1069 fbdev = stdoutdev;
1070 if (fbdev == NODEV) {
1071 DPRINTF(DPRINT_L3,
1072 "Can't find driver for console framebuffer\n");
1073 } else {
1074 /* stdoutdev is valid, of fbvp should exist */
1075 fbvp = i_consconfig_createvp(sp->cons_stdout_path);
1076 if (fbvp == NULL) {
1077 panic("consconfig_init_framebuffer: "
1078 "unable to find frame buffer device");
1079 /*NOTREACHED*/
1080 }
1081 ASSERT(fbvp->v_rdev == fbdev);
1082
1083 /* console device is never released */
1084 fbdip = e_ddi_hold_devi_by_dev(fbdev, 0);
1085 }
1086 pm_cfb_setup(sp->cons_stdout_path);
1087 }
1088
1089 /*
1090 * consconfig_prepare_dev:
1091 * Flush the stream, push "pushmod" onto the stream.
1092 * for keyboard, issue the KIOCTRANSABLE ioctl, and
1093 * possible enable abort.
1094 */
1095 static void
consconfig_prepare_dev(ldi_handle_t new_lh,const char * pushmod,int kbdtranslatable,int input_type,int dev_type)1096 consconfig_prepare_dev(
1097 ldi_handle_t new_lh,
1098 const char *pushmod,
1099 int kbdtranslatable,
1100 int input_type,
1101 int dev_type)
1102 {
1103 int err, rval;
1104
1105 /* send a flush down the stream to the keyboard driver */
1106 (void) ldi_ioctl(new_lh, I_FLUSH, (intptr_t)FLUSHRW,
1107 FKIOCTL, kcred, &rval);
1108
1109 if (pushmod) {
1110 err = ldi_ioctl(new_lh, I_PUSH, (intptr_t)pushmod,
1111 FKIOCTL, kcred, &rval);
1112 if (err) {
1113 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1114 "can't push streams module \"%s\", error %d",
1115 pushmod, err);
1116 }
1117 }
1118
1119 if (dev_type == CONS_MS)
1120 return;
1121
1122 ASSERT(dev_type == CONS_KBD);
1123
1124 err = ldi_ioctl(new_lh, KIOCTRANSABLE,
1125 (intptr_t)&kbdtranslatable, FKIOCTL, kcred, &rval);
1126 if (err) {
1127 cmn_err(CE_WARN, "consconfig_prepare_dev: "
1128 "KIOCTRANSABLE failed, error: %d", err);
1129 }
1130
1131 /*
1132 * During boot, dynamic_console_config() will call the
1133 * function to enable abort on the console. If the
1134 * keyboard is hotplugged after boot, check to see if
1135 * the keyboard is the console input. If it is
1136 * enable abort on it.
1137 */
1138 if (input_type == CONSOLE_LOCAL)
1139 (void) consconfig_kbd_abort_enable(new_lh);
1140 }
1141
1142 /*
1143 * consconfig_relink_conskbd:
1144 * If new_lh is not NULL it should represent a driver with a
1145 * keyboard module pushed on top of it. The driver is then linked
1146 * underneath conskbd. the resulting stream will be
1147 * wc->conskbd->"new_lh driver".
1148 *
1149 * If new_lh is NULL, then an unlink operation is done on conskbd
1150 * that attempts to unlink the stream specified by *muxid.
1151 * the resulting stream will be wc->conskbd.
1152 */
1153 static int
consconfig_relink_conskbd(cons_state_t * sp,ldi_handle_t new_lh,int * muxid)1154 consconfig_relink_conskbd(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1155 {
1156 int err, rval;
1157 int conskbd_relink = 0;
1158
1159 ASSERT(muxid != NULL);
1160
1161 DPRINTF(DPRINT_L0, "consconfig_relink_conskbd: "
1162 "conskbd_lh = %p, new_lh = %p, muxid = %x\n",
1163 sp->conskbd_lh, new_lh, *muxid);
1164
1165 /*
1166 * If conskbd is linked under wc then temporarily unlink it
1167 * from under wc so that the new_lh stream may be linked under
1168 * conskbd. This has to be done because streams are built bottom
1169 * up and linking a stream under conskbd isn't allowed when
1170 * conskbd is linked under wc.
1171 */
1172 if (sp->conskbd_muxid != -1) {
1173 DPRINTF(DPRINT_L0, "unlinking conskbd from under wc\n");
1174 conskbd_relink = 1;
1175 err = consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1176 if (err) {
1177 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1178 "wc unlink failed, error %d", err);
1179 return (err);
1180 }
1181 }
1182
1183 if (new_lh != NULL) {
1184 DPRINTF(DPRINT_L0, "linking keyboard under conskbd\n");
1185
1186 /* Link the stream represented by new_lh under conskbd */
1187 err = ldi_ioctl(sp->conskbd_lh, I_PLINK, (uintptr_t)new_lh,
1188 FKIOCTL, kcred, muxid);
1189 if (err != 0) {
1190 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1191 "conskbd link failed, error %d", err);
1192 goto relink_failed;
1193 }
1194 } else {
1195 DPRINTF(DPRINT_L0, "unlinking keyboard from under conskbd\n");
1196
1197 /*
1198 * This will cause the keyboard driver to be closed,
1199 * all modules to be popped, and the keyboard vnode released.
1200 */
1201 err = ldi_ioctl(sp->conskbd_lh, I_PUNLINK, *muxid,
1202 FKIOCTL, kcred, &rval);
1203 if (err != 0) {
1204 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1205 "conskbd unlink failed, error %d", err);
1206 goto relink_failed;
1207 } else {
1208 *muxid = -1;
1209 }
1210
1211 consconfig_check_phys_kbd(sp);
1212 }
1213
1214 if (!conskbd_relink)
1215 return (err);
1216
1217 /*
1218 * Link consbkd back under wc.
1219 *
1220 * The act of linking conskbd back under wc will cause wc
1221 * to query the lower lower layers about their polled I/O
1222 * routines. This time the request will succeed because there
1223 * is a physical keyboard linked under conskbd.
1224 */
1225 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1226 err = consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1227 if (err) {
1228 cmn_err(CE_WARN, "consconfig_relink_conskbd: "
1229 "wc link failed, error %d", err);
1230 }
1231 return (err);
1232
1233 relink_failed:
1234 if (!conskbd_relink)
1235 return (err);
1236
1237 /* something went wrong, try to reconnect conskbd back under wc */
1238 DPRINTF(DPRINT_L0, "re-linking conskbd under wc\n");
1239 (void) consconfig_relink_wc(sp, sp->conskbd_lh, &sp->conskbd_muxid);
1240 return (err);
1241 }
1242
1243 /*
1244 * consconfig_relink_consms:
1245 * If new_lh is not NULL it should represent a driver with a
1246 * mouse module pushed on top of it. The driver is then linked
1247 * underneath consms. the resulting stream will be
1248 * consms->"new_lh driver".
1249 *
1250 * If new_lh is NULL, then an unlink operation is done on consms
1251 * that attempts to unlink the stream specified by *muxid.
1252 */
1253 static int
consconfig_relink_consms(cons_state_t * sp,ldi_handle_t new_lh,int * muxid)1254 consconfig_relink_consms(cons_state_t *sp, ldi_handle_t new_lh, int *muxid)
1255 {
1256 int err, rval;
1257
1258 DPRINTF(DPRINT_L0, "consconfig_relink_consms: "
1259 "consms_lh = %p, new_lh = %p, muxid = %x\n",
1260 (void *)sp->consms_lh, (void *)new_lh, *muxid);
1261
1262 if (new_lh != NULL) {
1263 DPRINTF(DPRINT_L0, "linking mouse under consms\n");
1264
1265 /* Link ms/usbms stream underneath consms multiplexor. */
1266 err = ldi_ioctl(sp->consms_lh, I_PLINK, (uintptr_t)new_lh,
1267 FKIOCTL, kcred, muxid);
1268 if (err != 0) {
1269 cmn_err(CE_WARN, "consconfig_relink_consms: "
1270 "mouse link failed, error %d", err);
1271 }
1272 } else {
1273 DPRINTF(DPRINT_L0, "unlinking mouse from under consms\n");
1274
1275 /* Tear down the mouse stream */
1276 err = ldi_ioctl(sp->consms_lh, I_PUNLINK, *muxid,
1277 FKIOCTL, kcred, &rval);
1278 if (err != 0) {
1279 cmn_err(CE_WARN, "consconfig_relink_consms: "
1280 "mouse unlink failed, error %d", err);
1281 } else {
1282 *muxid = -1;
1283 }
1284 }
1285 return (err);
1286 }
1287
1288 static int
cons_get_input_type(cons_state_t * sp)1289 cons_get_input_type(cons_state_t *sp)
1290 {
1291 int type;
1292
1293 /*
1294 * Now that we know what all the devices are, we can figure out
1295 * what kind of console we have.
1296 */
1297 if (sp->cons_stdin_is_kbd) {
1298 /* Stdin is from the system keyboard */
1299 type = CONSOLE_LOCAL;
1300 } else if ((stdindev != NODEV) && (stdindev == stdoutdev)) {
1301 /*
1302 * A reliable indicator that we are doing a remote console
1303 * is that stdin and stdout are the same.
1304 * This is probably a tip line.
1305 */
1306 type = CONSOLE_TIP;
1307 } else {
1308 type = CONSOLE_SERIAL_KEYBOARD;
1309 }
1310
1311 return (type);
1312 }
1313
1314 static void
consconfig_init_input(cons_state_t * sp)1315 consconfig_init_input(cons_state_t *sp)
1316 {
1317 ldi_handle_t new_lh;
1318 dev_t cons_final_dev;
1319 int err;
1320
1321 cons_final_dev = NODEV;
1322
1323 switch (sp->cons_input_type) {
1324 case CONSOLE_LOCAL:
1325 DPRINTF(DPRINT_L0, "stdin is keyboard\n");
1326
1327 /*
1328 * The machine is allowed to boot without a keyboard.
1329 * If a user attaches a keyboard later, the keyboard
1330 * will be hooked into the console stream with the dacf
1331 * functions.
1332 *
1333 * The only drivers that look at kbbdev are the
1334 * serial drivers, which looks at kbdev to see if
1335 * they should allow abort on a break. In the absence
1336 * of keyboard, the serial drivers won't be attached
1337 * for any keyboard instance.
1338 */
1339 if (kbddev == NODEV) {
1340 /*
1341 * If there is a problem with the keyboard
1342 * during the driver loading, then the polled
1343 * input won't get setup properly if polled
1344 * input is needed. This means that if the
1345 * keyboard is hotplugged, the keyboard would
1346 * work normally, but going down to the
1347 * debugger would not work if polled input is
1348 * required. This field is set here. The next
1349 * time a keyboard is plugged in, the field is
1350 * checked in order to give the next keyboard a
1351 * chance at being registered for console
1352 * input.
1353 *
1354 * Although this code will rarely be needed,
1355 * USB keyboards can be flaky, so this code
1356 * will be useful on the occasion that the
1357 * keyboard doesn't enumerate when the drivers
1358 * are loaded.
1359 */
1360 DPRINTF(DPRINT_L2, "Error with console keyboard\n");
1361 sp->cons_keyboard_problem = B_TRUE;
1362 }
1363 stdindev = kbddev;
1364 cons_final_dev = sp->cons_wc_vp->v_rdev;
1365 break;
1366
1367 case CONSOLE_TIP:
1368 DPRINTF(DPRINT_L0, "console input is tty (%s)\n",
1369 sp->cons_stdin_path);
1370
1371 /*
1372 * Console device drivers must be able to output
1373 * after being closed.
1374 */
1375 rconsvp = i_consconfig_createvp(sp->cons_stdin_path);
1376 if (rconsvp == NULL) {
1377 panic("consconfig_init_input: "
1378 "unable to find stdin device (%s)",
1379 sp->cons_stdin_path);
1380 /*NOTREACHED*/
1381 }
1382 rconsdev = rconsvp->v_rdev;
1383
1384 ASSERT(rconsdev == stdindev);
1385
1386 cons_final_dev = rconsdev;
1387 break;
1388
1389 case CONSOLE_SERIAL_KEYBOARD:
1390 DPRINTF(DPRINT_L0, "stdin is serial keyboard\n");
1391
1392 /*
1393 * Non-keyboard input device, but not rconsdev.
1394 * This is known as the "serial keyboard" case - the
1395 * most likely use is someone has a keyboard attached
1396 * to a serial port (tip) and still has output on a
1397 * framebuffer.
1398 *
1399 * In this case, the serial driver must be linked
1400 * directly beneath wc. Since conskbd was linked
1401 * underneath wc above, first we unlink conskbd.
1402 */
1403 (void) consconfig_relink_wc(sp, NULL, &sp->conskbd_muxid);
1404 sp->conskbd_muxid = -1;
1405
1406 /*
1407 * Open the serial keyboard, configure it,
1408 * and link it underneath wc.
1409 */
1410 err = ldi_open_by_name(sp->cons_stdin_path,
1411 FREAD|FWRITE|FNOCTTY, kcred, &new_lh, sp->cons_li);
1412 if (err == 0) {
1413 struct termios termios;
1414 int rval;
1415 int stdin_muxid;
1416
1417 consconfig_prepare_dev(new_lh,
1418 "kb", TR_CANNOT, sp->cons_input_type, CONS_KBD);
1419
1420 /* Re-set baud rate */
1421 (void) ldi_ioctl(new_lh, TCGETS, (intptr_t)&termios,
1422 FKIOCTL, kcred, &rval);
1423
1424 /* Set baud rate */
1425 if (consconfig_setmodes(stdindev, &termios) == 0) {
1426 err = ldi_ioctl(new_lh,
1427 TCSETSF, (intptr_t)&termios,
1428 FKIOCTL, kcred, &rval);
1429 if (err) {
1430 cmn_err(CE_WARN,
1431 "consconfig_init_input: "
1432 "TCSETSF failed, error %d", err);
1433 }
1434 }
1435
1436 /*
1437 * Now link the serial keyboard direcly under wc
1438 * we don't save the returned muxid because we
1439 * don't support changing/hotplugging the console
1440 * keyboard when it is a serial keyboard.
1441 */
1442 (void) consconfig_relink_wc(sp, new_lh, &stdin_muxid);
1443
1444 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1445 }
1446
1447 cons_final_dev = sp->cons_wc_vp->v_rdev;
1448 break;
1449
1450 default:
1451 panic("consconfig_init_input: "
1452 "unsupported console input/output combination");
1453 /*NOTREACHED*/
1454 }
1455
1456 /*
1457 * Use the redirection device/workstation console pair as the "real"
1458 * console if the latter hasn't already been set.
1459 * The workstation console driver needs to see rwsconsvp, but
1460 * all other access should be through the redirecting driver.
1461 */
1462 if (rconsvp == NULL) {
1463 consconfig_dprintf(DPRINT_L0, "setup redirection driver\n");
1464 rconsvp = wsconsvp;
1465 rconsdev = wsconsvp->v_rdev;
1466 }
1467
1468 ASSERT(cons_final_dev != NODEV);
1469
1470 err = ldi_open_by_dev(&cons_final_dev, OTYP_CHR, FREAD|FWRITE|FNOCTTY,
1471 kcred, &new_lh, sp->cons_li);
1472 if (err) {
1473 panic("consconfig_init_input: "
1474 "unable to open console device");
1475 /*NOTREACHED*/
1476 }
1477
1478 /* Enable abort on the console */
1479 (void) consconfig_kbd_abort_enable(new_lh);
1480
1481 /* Now we must close it to make console logins happy */
1482 (void) ldi_close(new_lh, FREAD|FWRITE, kcred);
1483
1484 /* Set up polled input if it is supported by the console device */
1485 if (plat_use_polled_debug()) {
1486 /*
1487 * In the debug case, register the keyboard polled entry
1488 * points, but don't throw the switch in the debugger. This
1489 * allows the polled entry points to be checked by hand
1490 */
1491 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1492 } else {
1493 if (diagdev != NODEV)
1494 consconfig_setup_polledio(sp, diagdev);
1495 else
1496 consconfig_setup_polledio(sp, cons_final_dev);
1497 }
1498
1499 kadb_uses_kernel();
1500 }
1501
1502 /*
1503 * This function kicks off the console configuration.
1504 * Configure keyboard and mouse. Main entry here.
1505 */
1506 void
dynamic_console_config(void)1507 dynamic_console_config(void)
1508 {
1509 /* initialize space.c globals */
1510 stdindev = NODEV;
1511 mousedev = NODEV;
1512 kbddev = NODEV;
1513 fbdev = NODEV;
1514 diagdev = NODEV;
1515 fbvp = NULL;
1516 fbdip = NULL;
1517 wsconsvp = NULL;
1518 rwsconsvp = NULL;
1519 rwsconsdev = NODEV;
1520 rconsvp = NULL;
1521 rconsdev = NODEV;
1522
1523 /* Initialize cons_state_t structure and console device paths */
1524 consconfig_sp = consconfig_state_init();
1525 ASSERT(consconfig_sp);
1526
1527 /* Build upper layer of console stream */
1528 cons_build_upper_layer(consconfig_sp);
1529
1530 /*
1531 * Load keyboard/mouse drivers. The dacf routines will
1532 * plumb the devices into the console stream
1533 *
1534 * At the conclusion of the ddi_pathname_to_dev_t calls, the keyboard
1535 * and mouse drivers are linked into their respective console
1536 * streams if the pathnames are valid.
1537 */
1538 consconfig_load_drivers(consconfig_sp);
1539 consconfig_sp->cons_input_type = cons_get_input_type(consconfig_sp);
1540
1541 rwsconsvp = consconfig_sp->cons_wc_vp;
1542 rwsconsdev = consconfig_sp->cons_wc_vp->v_rdev;
1543
1544
1545 /* initialize framebuffer, console input, and redirection device */
1546 consconfig_init_framebuffer(consconfig_sp);
1547 consconfig_init_input(consconfig_sp);
1548
1549 #if !defined(__x86)
1550 /* initialize virtual console vp for logging if needed */
1551 consconfig_virtual_console_vp(consconfig_sp);
1552 #endif
1553
1554 DPRINTF(DPRINT_L0,
1555 "mousedev %lx, kbddev %lx, fbdev %lx, rconsdev %lx\n",
1556 mousedev, kbddev, fbdev, rconsdev);
1557
1558 flush_deferred_console_buf();
1559 consconfig_sp->cons_initialized = B_TRUE;
1560 }
1561
1562
1563 /*
1564 * Start of DACF interfaces
1565 */
1566
1567 /*
1568 * Do the real job for keyboard/mouse auto-configuration.
1569 */
1570 static int
do_config(cons_state_t * sp,cons_prop_t * prop)1571 do_config(cons_state_t *sp, cons_prop_t *prop)
1572 {
1573 ldi_handle_t lh;
1574 dev_t dev;
1575 int error;
1576
1577 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1578
1579 dev = prop->cp_dev;
1580 error = ldi_open_by_dev(&dev, OTYP_CHR,
1581 FREAD|FWRITE|FNOCTTY, kcred, &lh, sp->cons_li);
1582 if (error) {
1583 return (DACF_FAILURE);
1584 }
1585 ASSERT(dev == prop->cp_dev); /* clone not supported */
1586
1587 /*
1588 * Prepare the new keyboard/mouse driver
1589 * to be linked under conskbd/consms.
1590 */
1591 consconfig_prepare_dev(lh, prop->cp_pushmod, TR_CAN,
1592 sp->cons_input_type, prop->cp_type);
1593
1594 if (prop->cp_type == CONS_KBD) {
1595 /*
1596 * Tell the physical keyboard driver to send
1597 * the abort sequences up to the virtual keyboard
1598 * driver so that STOP and A (or F1 and A)
1599 * can be applied to different keyboards.
1600 */
1601 (void) consconfig_kbd_abort_disable(lh);
1602
1603 /* Link the stream underneath conskbd */
1604 error = consconfig_relink_conskbd(sp, lh, &prop->cp_muxid);
1605 } else {
1606 /* Link the stream underneath consms */
1607 error = consconfig_relink_consms(sp, lh, &prop->cp_muxid);
1608 }
1609
1610 /*
1611 * At this point, the stream is:
1612 * for keyboard: wc->conskbd->["pushmod"->"kbd_vp driver"]
1613 * for mouse: consms->["module_name"->]"mouse_avp driver"
1614 */
1615
1616 /* Close the driver stream, it will stay linked under conskbd */
1617 (void) ldi_close(lh, FREAD|FWRITE, kcred);
1618
1619 if (error) {
1620 return (DACF_FAILURE);
1621 }
1622
1623 return (DACF_SUCCESS);
1624 }
1625
1626 static int
do_unconfig(cons_state_t * sp,cons_prop_t * prop)1627 do_unconfig(cons_state_t *sp, cons_prop_t *prop)
1628 {
1629 ASSERT((prop->cp_type == CONS_KBD) || (prop->cp_type == CONS_MS));
1630
1631 if (prop->cp_type == CONS_KBD)
1632 return (consconfig_relink_conskbd(sp, NULL, &prop->cp_muxid));
1633 else
1634 return (consconfig_relink_consms(sp, NULL, &prop->cp_muxid));
1635 }
1636
1637 static int
kb_ms_config(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl,int type)1638 kb_ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int type)
1639 {
1640 major_t major;
1641 minor_t minor;
1642 dev_t dev;
1643 dev_info_t *dip;
1644 cons_state_t *sp;
1645 cons_prop_t *prop;
1646 const char *pushmod;
1647
1648 /*
1649 * Retrieve the state information
1650 * Some platforms may use the old-style "consconfig" to configure
1651 * console stream modules but may also support devices that happen
1652 * to match a rule in /etc/dacf.conf. This will cause a problem
1653 * since the console state structure will not be initialized.
1654 * In that case, these entry points should silently fail and
1655 * permit console to be plumbed later in boot.
1656 */
1657 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1658 return (DACF_FAILURE);
1659
1660 dip = dacf_devinfo_node(minor_hdl);
1661 major = ddi_driver_major(dip);
1662 ASSERT(major != DDI_MAJOR_T_NONE);
1663 minor = dacf_minor_number(minor_hdl);
1664 dev = makedevice(major, minor);
1665 ASSERT(dev != NODEV);
1666
1667 DPRINTF(DPRINT_L0, "driver name = \"%s\", dev = 0x%lx, major = 0x%x\n",
1668 (char *)dacf_driver_name(minor_hdl), dev, major);
1669
1670 /* Access to the global variables is synchronized */
1671 mutex_enter(&sp->cons_lock);
1672
1673 /*
1674 * Check if the keyboard/mouse has already configured.
1675 */
1676 if (consconfig_find_dev(sp, dev) != NULL) {
1677 mutex_exit(&sp->cons_lock);
1678 return (DACF_SUCCESS);
1679 }
1680
1681 prop = kmem_zalloc(sizeof (cons_prop_t), KM_SLEEP);
1682
1683 /* Config the new keyboard/mouse device */
1684 prop->cp_dev = dev;
1685
1686 pushmod = dacf_get_arg(arg_hdl, "pushmod");
1687 prop->cp_pushmod = i_ddi_strdup((char *)pushmod, KM_SLEEP);
1688
1689 prop->cp_type = type;
1690 if (do_config(sp, prop) != DACF_SUCCESS) {
1691 /*
1692 * The keyboard/mouse node failed to open.
1693 * Set the major and minor numbers to 0 so
1694 * kb_unconfig/ms_unconfig won't unconfigure
1695 * this node if it is detached.
1696 */
1697 mutex_exit(&sp->cons_lock);
1698 consconfig_free_prop(prop);
1699 return (DACF_FAILURE);
1700 }
1701
1702 consconfig_add_dev(sp, prop);
1703
1704 /*
1705 * See if there was a problem with the console keyboard during boot.
1706 * If so, try to register polled input for this keyboard.
1707 */
1708 if ((type == CONS_KBD) && (sp->cons_keyboard_problem)) {
1709 consconfig_setup_polledio(sp, sp->cons_wc_vp->v_rdev);
1710 sp->cons_keyboard_problem = B_FALSE;
1711 }
1712
1713 /* Prevent autodetach due to memory pressure */
1714 (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, DDI_NO_AUTODETACH, 1);
1715
1716 mutex_exit(&sp->cons_lock);
1717
1718 return (DACF_SUCCESS);
1719 }
1720
1721 static int
kb_ms_unconfig(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl)1722 kb_ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl)
1723 {
1724 _NOTE(ARGUNUSED(arg_hdl))
1725
1726 major_t major;
1727 minor_t minor;
1728 dev_t dev;
1729 dev_info_t *dip;
1730 cons_state_t *sp;
1731 cons_prop_t *prop;
1732
1733 /*
1734 * Retrieve the state information
1735 * So if there isn't a state available, then this entry point just
1736 * returns. See note in kb_config().
1737 */
1738 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1739 return (DACF_SUCCESS);
1740
1741 dip = dacf_devinfo_node(minor_hdl);
1742 major = ddi_driver_major(dip);
1743 ASSERT(major != DDI_MAJOR_T_NONE);
1744 minor = dacf_minor_number(minor_hdl);
1745 dev = makedevice(major, minor);
1746 ASSERT(dev != NODEV);
1747
1748 /*
1749 * Check if the keyboard/mouse that is being detached
1750 * is the console keyboard/mouse or not.
1751 */
1752 mutex_enter(&sp->cons_lock);
1753 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1754 mutex_exit(&sp->cons_lock);
1755 return (DACF_SUCCESS);
1756 }
1757
1758 /*
1759 * This dev may be opened physically and then hotplugged out.
1760 */
1761 if (prop->cp_muxid != -1) {
1762 (void) do_unconfig(sp, prop);
1763 consconfig_rem_dev(sp, dev);
1764 }
1765
1766 mutex_exit(&sp->cons_lock);
1767
1768 return (DACF_SUCCESS);
1769 }
1770
1771 /*
1772 * This is the post-attach / pre-detach action function for the keyboard
1773 * and mouse. This function is associated with a node type in /etc/dacf.conf.
1774 */
1775 static int
kb_config(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl,int flags)1776 kb_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1777 {
1778 _NOTE(ARGUNUSED(flags))
1779
1780 return (kb_ms_config(minor_hdl, arg_hdl, CONS_KBD));
1781 }
1782
1783 static int
ms_config(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl,int flags)1784 ms_config(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1785 {
1786 _NOTE(ARGUNUSED(flags))
1787
1788 return (kb_ms_config(minor_hdl, arg_hdl, CONS_MS));
1789 }
1790
1791 static int
kb_unconfig(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl,int flags)1792 kb_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1793 {
1794 _NOTE(ARGUNUSED(flags))
1795
1796 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1797 }
1798
1799 static int
ms_unconfig(dacf_infohdl_t minor_hdl,dacf_arghdl_t arg_hdl,int flags)1800 ms_unconfig(dacf_infohdl_t minor_hdl, dacf_arghdl_t arg_hdl, int flags)
1801 {
1802 _NOTE(ARGUNUSED(flags))
1803
1804 return (kb_ms_unconfig(minor_hdl, arg_hdl));
1805 }
1806
1807 /*
1808 * consconfig_link and consconfig_unlink are provided to support
1809 * direct access to physical keyboard/mouse underlying conskbd/
1810 * consms.
1811 * When the keyboard/mouse is opened physically via its device
1812 * file, it will be unlinked from the virtual one, and when it
1813 * is closed physically, it will be linked back under the virtual
1814 * one.
1815 */
1816 void
consconfig_link(major_t major,minor_t minor)1817 consconfig_link(major_t major, minor_t minor)
1818 {
1819 char buf[MAXPATHLEN];
1820 dev_t dev;
1821 cons_state_t *sp;
1822 cons_prop_t *prop;
1823
1824 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1825 return;
1826
1827 dev = makedevice(major, minor);
1828 ASSERT(dev != NODEV);
1829
1830 mutex_enter(&sp->cons_lock);
1831 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1832 mutex_exit(&sp->cons_lock);
1833 return;
1834 }
1835
1836 if (do_config(sp, prop) != DACF_SUCCESS) {
1837 (void) ddi_dev_pathname(dev, 0, buf);
1838 if (prop->cp_type == CONS_KBD)
1839 cmn_err(CE_WARN, "Failed to relink the keyboard "
1840 "(%s) underneath virtual keyboard", buf);
1841 else
1842 cmn_err(CE_WARN, "Failed to relink the mouse "
1843 "(%s) underneath virtual mouse", buf);
1844 consconfig_rem_dev(sp, dev);
1845 }
1846
1847 mutex_exit(&sp->cons_lock);
1848 }
1849
1850
1851 int
consconfig_unlink(major_t major,minor_t minor)1852 consconfig_unlink(major_t major, minor_t minor)
1853 {
1854 dev_t dev;
1855 cons_state_t *sp;
1856 cons_prop_t *prop;
1857 int error;
1858
1859 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
1860 return (DACF_SUCCESS);
1861
1862 dev = makedevice(major, minor);
1863 ASSERT(dev != NODEV);
1864
1865 mutex_enter(&sp->cons_lock);
1866 if ((prop = consconfig_find_dev(sp, dev)) == NULL) {
1867 mutex_exit(&sp->cons_lock);
1868 return (DACF_FAILURE);
1869 }
1870
1871 error = do_unconfig(sp, prop);
1872
1873 /*
1874 * Keep this dev on the list, for this dev is still online.
1875 */
1876 mutex_exit(&sp->cons_lock);
1877
1878 return (error);
1879 }
1880
1881 /*
1882 * Routine to set baud rate, bits-per-char, parity and stop bits
1883 * on the console line when necessary.
1884 */
1885 static int
consconfig_setmodes(dev_t dev,struct termios * termiosp)1886 consconfig_setmodes(dev_t dev, struct termios *termiosp)
1887 {
1888 char buf[MAXPATHLEN];
1889 int len = MAXPATHLEN;
1890 char name[16];
1891 int ppos, i;
1892 char *path;
1893 dev_t tdev;
1894
1895 /*
1896 * First, search for a devalias which matches this dev_t.
1897 * Try all of ttya through ttyz until no such alias
1898 */
1899 (void) strcpy(name, "ttya");
1900 for (i = 0; i < ('z'-'a'); i++) {
1901 name[3] = 'a' + i; /* increment device name */
1902 path = get_alias(name, buf);
1903 if (path == NULL)
1904 return (1);
1905
1906 tdev = ddi_pathname_to_dev_t(path);
1907 if (tdev == dev)
1908 break; /* Exit loop if found */
1909 }
1910
1911 if (i >= ('z'-'a'))
1912 return (1); /* If we didn't find it, return */
1913
1914 /*
1915 * Now that we know which "tty" this corresponds to, retrieve
1916 * the "ttya-mode" options property, which tells us how to configure
1917 * the line.
1918 */
1919 (void) strcpy(name, "ttya-mode"); /* name of option we want */
1920 name[3] = 'a' + i; /* Adjust to correct line */
1921
1922 if (ddi_getlongprop_buf(DDI_DEV_T_ANY, ddi_root_node(), 0, name,
1923 buf, &len) != DDI_PROP_SUCCESS)
1924 return (1); /* if no such option, just return */
1925
1926 /*
1927 * The IEEE 1275 standard specifies that /aliases string property
1928 * values should be null-terminated. Unfortunately the reality
1929 * is that most aren't and the OBP can't easily be modified to
1930 * add null termination to these strings. So we'll add the
1931 * null termination here. If the string already contains a
1932 * null termination character then that's ok too because we'll
1933 * just be adding a second one.
1934 */
1935 buf[len] = '\0';
1936
1937 /* Clear out options we will be setting */
1938 termiosp->c_cflag &=
1939 ~(CSIZE | CBAUD | CBAUDEXT | PARODD | PARENB | CSTOPB);
1940
1941 /* Clear options which potentially conflict with new settings */
1942 termiosp->c_cflag &= ~(CIBAUD | CIBAUDEXT);
1943
1944 /*
1945 * Now, parse the string. Wish I could use sscanf().
1946 * Format 9600,8,n,1,-
1947 * baud rate, bits-per-char, parity, stop-bits, ignored
1948 */
1949 for (ppos = 0; ppos < (MAXPATHLEN-8); ppos++) { /* Find first comma */
1950 if ((buf[ppos] == 0) || (buf[ppos] == ','))
1951 break;
1952 }
1953
1954 if (buf[ppos] != ',') {
1955 cmn_err(CE_WARN, "consconfig_setmodes: "
1956 "invalid mode string %s", buf);
1957 return (1);
1958 }
1959
1960 for (i = 0; i < MAX_SPEEDS; i++) {
1961 if (strncmp(buf, speedtab[i].name, ppos) == 0)
1962 break;
1963 }
1964
1965 if (i >= MAX_SPEEDS) {
1966 cmn_err(CE_WARN,
1967 "consconfig_setmodes: unrecognized speed in %s", buf);
1968 return (1);
1969 }
1970
1971 /* Found the baud rate, set it */
1972 termiosp->c_cflag |= speedtab[i].code & CBAUD;
1973 if (speedtab[i].code > 16) /* cfsetospeed! */
1974 termiosp->c_cflag |= CBAUDEXT;
1975
1976 /* Set bits per character */
1977 switch (buf[ppos+1]) {
1978 case '8':
1979 termiosp->c_cflag |= CS8;
1980 break;
1981 case '7':
1982 termiosp->c_cflag |= CS7;
1983 break;
1984 default:
1985 cmn_err(CE_WARN,
1986 "consconfig_setmodes: illegal bits-per-char %s", buf);
1987 return (1);
1988 }
1989
1990 /* Set parity */
1991 switch (buf[ppos+3]) {
1992 case 'o':
1993 termiosp->c_cflag |= PARENB | PARODD;
1994 break;
1995 case 'e':
1996 termiosp->c_cflag |= PARENB; /* enabled, not odd */
1997 break;
1998 case 'n':
1999 break; /* not enabled. */
2000 default:
2001 cmn_err(CE_WARN, "consconfig_setmodes: illegal parity %s", buf);
2002 return (1);
2003 }
2004
2005 /* Set stop bits */
2006 switch (buf[ppos+5]) {
2007 case '1':
2008 break; /* No extra stop bit */
2009 case '2':
2010 termiosp->c_cflag |= CSTOPB; /* 1 extra stop bit */
2011 break;
2012 default:
2013 cmn_err(CE_WARN, "consconfig_setmodes: "
2014 "illegal stop bits %s", buf);
2015 return (1);
2016 }
2017
2018 return (0);
2019 }
2020
2021 /*
2022 * Check to see if underlying keyboard devices are still online,
2023 * if any one is offline now, unlink it.
2024 */
2025 static void
consconfig_check_phys_kbd(cons_state_t * sp)2026 consconfig_check_phys_kbd(cons_state_t *sp)
2027 {
2028 ldi_handle_t kb_lh;
2029 cons_prop_t *prop;
2030 int error;
2031 int rval;
2032
2033 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2034 if ((prop->cp_type != CONS_KBD) || (prop->cp_muxid == -1))
2035 continue;
2036
2037 error = ldi_open_by_dev(&prop->cp_dev, OTYP_CHR,
2038 FREAD|FWRITE|FNOCTTY, kcred, &kb_lh, sp->cons_li);
2039
2040 if (error) {
2041 (void) ldi_ioctl(sp->conskbd_lh, I_PUNLINK,
2042 prop->cp_muxid, FKIOCTL, kcred, &rval);
2043 prop->cp_dev = NODEV;
2044 } else {
2045 (void) ldi_close(kb_lh, FREAD|FWRITE, kcred);
2046 }
2047 }
2048
2049 /*
2050 * Remove all disconnected keyboards,
2051 * whose dev is turned into NODEV above.
2052 */
2053 consconfig_rem_dev(sp, NODEV);
2054 }
2055
2056 /*
2057 * Remove devices according to dev, which may be NODEV
2058 */
2059 static void
consconfig_rem_dev(cons_state_t * sp,dev_t dev)2060 consconfig_rem_dev(cons_state_t *sp, dev_t dev)
2061 {
2062 cons_prop_t *prop;
2063 cons_prop_t *prev_prop;
2064 cons_prop_t *tmp_prop;
2065 cons_prop_t *head_prop;
2066
2067 head_prop = NULL;
2068 prev_prop = NULL;
2069 for (prop = sp->cons_km_prop; prop != NULL; ) {
2070 if (prop->cp_dev == dev) {
2071 tmp_prop = prop->cp_next;
2072 consconfig_free_prop(prop);
2073 prop = tmp_prop;
2074 if (prev_prop)
2075 prev_prop->cp_next = prop;
2076 } else {
2077 if (head_prop == NULL)
2078 head_prop = prop;
2079 prev_prop = prop;
2080 prop = prop->cp_next;
2081 }
2082 }
2083 sp->cons_km_prop = head_prop;
2084 }
2085
2086 /*
2087 * Add a dev according to prop
2088 */
2089 static void
consconfig_add_dev(cons_state_t * sp,cons_prop_t * prop)2090 consconfig_add_dev(cons_state_t *sp, cons_prop_t *prop)
2091 {
2092 prop->cp_next = sp->cons_km_prop;
2093 sp->cons_km_prop = prop;
2094 }
2095
2096 /*
2097 * Find a device from our list according to dev
2098 */
2099 static cons_prop_t *
consconfig_find_dev(cons_state_t * sp,dev_t dev)2100 consconfig_find_dev(cons_state_t *sp, dev_t dev)
2101 {
2102 cons_prop_t *prop;
2103
2104 for (prop = sp->cons_km_prop; prop; prop = prop->cp_next) {
2105 if (prop->cp_dev == dev)
2106 break;
2107 }
2108
2109 return (prop);
2110 }
2111
2112 /*
2113 * Free a cons prop associated with a keyboard or mouse
2114 */
2115 static void
consconfig_free_prop(cons_prop_t * prop)2116 consconfig_free_prop(cons_prop_t *prop)
2117 {
2118 if (prop->cp_pushmod)
2119 kmem_free(prop->cp_pushmod, strlen(prop->cp_pushmod) + 1);
2120 kmem_free(prop, sizeof (cons_prop_t));
2121 }
2122
2123 /*
2124 * The early boot code can't print to a usb serial device or the
2125 * graphical boot screen.
2126 *
2127 * The early boot messages are saved in a buffer at the address indicated
2128 * by "deferred-console-buf" This function flushes the message to the
2129 * current console now that it is set up.
2130 */
2131 static void
flush_deferred_console_buf(void)2132 flush_deferred_console_buf(void)
2133 {
2134 int rval;
2135 vnode_t *vp;
2136 uint_t defcons_buf;
2137 char *kc, *bc, *defcons_kern_buf;
2138
2139 /* defcons_buf is in low memory, so an int works here */
2140 defcons_buf = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
2141 DDI_PROP_DONTPASS, "deferred-console-buf", 0);
2142
2143 if (defcons_buf == 0)
2144 return;
2145
2146 /*
2147 * After consconfig() and before userland opens /dev/sysmsg,
2148 * console I/O is goes to polled I/O entry points.
2149 *
2150 * If usb-serial doesn't implement polled I/O, we need
2151 * to open /dev/console now to get kernel console I/O to work.
2152 * We also push ttcompat and ldterm explicitly to get the
2153 * correct output format (autopush isn't set up yet). We
2154 * ignore push errors because they are non-fatal.
2155 * Note that opening /dev/console causes rconsvp to be
2156 * opened as well.
2157 */
2158 if (cons_polledio == NULL) {
2159 if (vn_open("/dev/console", UIO_SYSSPACE, FWRITE | FNOCTTY,
2160 0, &vp, 0, 0) != 0)
2161 return;
2162
2163 if (rconsvp) {
2164 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2165 (intptr_t)"ldterm", FKIOCTL, K_TO_K, kcred, &rval);
2166 (void) strioctl(rconsvp, __I_PUSH_NOCTTY,
2167 (intptr_t)"ttcompat", FKIOCTL, K_TO_K,
2168 kcred, &rval);
2169 }
2170 }
2171
2172 /*
2173 * Copy message to a kernel buffer. Various kernel routines
2174 * expect buffer to be above kernelbase
2175 */
2176 kc = defcons_kern_buf = kmem_zalloc(MMU_PAGESIZE, KM_SLEEP);
2177 bc = (char *)(uintptr_t)defcons_buf;
2178 while (*kc++ = *bc++)
2179 ;
2180 console_printf("%s", defcons_kern_buf);
2181
2182 kmem_free(defcons_kern_buf, MMU_PAGESIZE);
2183 }
2184
2185 boolean_t
consconfig_console_is_tipline(void)2186 consconfig_console_is_tipline(void)
2187 {
2188 cons_state_t *sp;
2189
2190 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2191 return (B_FALSE);
2192
2193 if (sp->cons_input_type == CONSOLE_TIP)
2194 return (B_TRUE);
2195
2196 return (B_FALSE);
2197 }
2198
2199 boolean_t
consconfig_dacf_initialized(void)2200 consconfig_dacf_initialized(void)
2201 {
2202 cons_state_t *sp;
2203
2204 if ((sp = (cons_state_t *)space_fetch("consconfig")) == NULL)
2205 return (B_FALSE);
2206
2207 return (sp->cons_initialized);
2208 }
2209