2 * Copyright (c) 1997,1998 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/kern/subr_bus.c,v 1.54.2.9 2002/10/10 15:13:32 jhb Exp $
27 * $DragonFly: src/sys/kern/subr_bus.c,v 1.6 2003/11/17 21:24:15 asmodai Exp $
32 #include <sys/param.h>
33 #include <sys/queue.h>
34 #include <sys/malloc.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
38 #include <sys/sysctl.h>
41 #include <sys/bus_private.h>
42 #include <sys/systm.h>
43 #include <machine/bus.h>
45 #include <machine/stdarg.h> /* for device_printf() */
47 MALLOC_DEFINE(M_BUS, "bus", "Bus data structures");
50 #define PDEBUG(a) (printf(__FUNCTION__ ":%d: ", __LINE__), printf a, printf("\n"))
51 #define DEVICENAME(d) ((d)? device_get_name(d): "no device")
52 #define DRIVERNAME(d) ((d)? d->name : "no driver")
53 #define DEVCLANAME(d) ((d)? d->name : "no devclass")
55 /* Produce the indenting, indent*2 spaces plus a '.' ahead of that to
56 * prevent syslog from deleting initial spaces
58 #define indentprintf(p) do { int iJ; printf("."); for (iJ=0; iJ<indent; iJ++) printf(" "); printf p ; } while(0)
60 static void print_device_short(device_t dev, int indent);
61 static void print_device(device_t dev, int indent);
62 void print_device_tree_short(device_t dev, int indent);
63 void print_device_tree(device_t dev, int indent);
64 static void print_driver_short(driver_t *driver, int indent);
65 static void print_driver(driver_t *driver, int indent);
66 static void print_driver_list(driver_list_t drivers, int indent);
67 static void print_devclass_short(devclass_t dc, int indent);
68 static void print_devclass(devclass_t dc, int indent);
69 void print_devclass_list_short(void);
70 void print_devclass_list(void);
73 /* Make the compiler ignore the function calls */
74 #define PDEBUG(a) /* nop */
75 #define DEVICENAME(d) /* nop */
76 #define DRIVERNAME(d) /* nop */
77 #define DEVCLANAME(d) /* nop */
79 #define print_device_short(d,i) /* nop */
80 #define print_device(d,i) /* nop */
81 #define print_device_tree_short(d,i) /* nop */
82 #define print_device_tree(d,i) /* nop */
83 #define print_driver_short(d,i) /* nop */
84 #define print_driver(d,i) /* nop */
85 #define print_driver_list(d,i) /* nop */
86 #define print_devclass_short(d,i) /* nop */
87 #define print_devclass(d,i) /* nop */
88 #define print_devclass_list_short() /* nop */
89 #define print_devclass_list() /* nop */
93 static void device_register_oids(device_t dev);
94 static void device_unregister_oids(device_t dev);
97 kobj_method_t null_methods[] = {
101 DEFINE_CLASS(null, null_methods, 0);
104 * Devclass implementation
107 static devclass_list_t devclasses = TAILQ_HEAD_INITIALIZER(devclasses);
110 devclass_find_internal(const char *classname, int create)
114 PDEBUG(("looking for %s", classname));
118 for (dc = TAILQ_FIRST(&devclasses); dc; dc = TAILQ_NEXT(dc, link))
119 if (!strcmp(dc->name, classname))
122 PDEBUG(("%s not found%s", classname, (create? ", creating": "")));
124 dc = malloc(sizeof(struct devclass) + strlen(classname) + 1,
128 bzero(dc, sizeof(struct devclass) + strlen(classname) + 1);
129 dc->name = (char*) (dc + 1);
130 strcpy(dc->name, classname);
133 TAILQ_INIT(&dc->drivers);
134 TAILQ_INSERT_TAIL(&devclasses, dc, link);
141 devclass_create(const char *classname)
143 return devclass_find_internal(classname, TRUE);
147 devclass_find(const char *classname)
149 return devclass_find_internal(classname, FALSE);
153 devclass_add_driver(devclass_t dc, driver_t *driver)
158 PDEBUG(("%s", DRIVERNAME(driver)));
160 dl = malloc(sizeof *dl, M_BUS, M_NOWAIT);
163 bzero(dl, sizeof *dl);
166 * Compile the driver's methods. Also increase the reference count
167 * so that the class doesn't get freed when the last instance
168 * goes. This means we can safely use static methods and avoids a
169 * double-free in devclass_delete_driver.
171 kobj_class_compile((kobj_class_t) driver);
174 * Make sure the devclass which the driver is implementing exists.
176 devclass_find_internal(driver->name, TRUE);
179 TAILQ_INSERT_TAIL(&dc->drivers, dl, link);
183 * Call BUS_DRIVER_ADDED for any existing busses in this class.
185 for (i = 0; i < dc->maxunit; i++)
187 BUS_DRIVER_ADDED(dc->devices[i], driver);
193 devclass_delete_driver(devclass_t busclass, driver_t *driver)
195 devclass_t dc = devclass_find(driver->name);
201 PDEBUG(("%s from devclass %s", driver->name, DEVCLANAME(busclass)));
207 * Find the link structure in the bus' list of drivers.
209 for (dl = TAILQ_FIRST(&busclass->drivers); dl;
210 dl = TAILQ_NEXT(dl, link)) {
211 if (dl->driver == driver)
216 PDEBUG(("%s not found in %s list", driver->name, busclass->name));
221 * Disassociate from any devices. We iterate through all the
222 * devices in the devclass of the driver and detach any which are
223 * using the driver and which have a parent in the devclass which
224 * we are deleting from.
226 * Note that since a driver can be in multiple devclasses, we
227 * should not detach devices which are not children of devices in
228 * the affected devclass.
230 for (i = 0; i < dc->maxunit; i++) {
231 if (dc->devices[i]) {
232 dev = dc->devices[i];
233 if (dev->driver == driver
234 && dev->parent && dev->parent->devclass == busclass) {
235 if ((error = device_detach(dev)) != 0)
237 device_set_driver(dev, NULL);
242 TAILQ_REMOVE(&busclass->drivers, dl, link);
246 if (driver->refs == 0)
247 kobj_class_free((kobj_class_t) driver);
253 devclass_find_driver_internal(devclass_t dc, const char *classname)
257 PDEBUG(("%s in devclass %s", classname, DEVCLANAME(dc)));
259 for (dl = TAILQ_FIRST(&dc->drivers); dl; dl = TAILQ_NEXT(dl, link)) {
260 if (!strcmp(dl->driver->name, classname))
264 PDEBUG(("not found"));
269 devclass_find_driver(devclass_t dc, const char *classname)
273 dl = devclass_find_driver_internal(dc, classname);
281 devclass_get_name(devclass_t dc)
287 devclass_get_device(devclass_t dc, int unit)
289 if (dc == NULL || unit < 0 || unit >= dc->maxunit)
291 return dc->devices[unit];
295 devclass_get_softc(devclass_t dc, int unit)
299 dev = devclass_get_device(dc, unit);
303 return (device_get_softc(dev));
307 devclass_get_devices(devclass_t dc, device_t **devlistp, int *devcountp)
314 for (i = 0; i < dc->maxunit; i++)
318 list = malloc(count * sizeof(device_t), M_TEMP, M_NOWAIT);
321 bzero(list, count * sizeof(device_t));
324 for (i = 0; i < dc->maxunit; i++)
325 if (dc->devices[i]) {
326 list[count] = dc->devices[i];
337 devclass_get_maxunit(devclass_t dc)
343 devclass_alloc_unit(devclass_t dc, int *unitp)
347 PDEBUG(("unit %d in devclass %s", unit, DEVCLANAME(dc)));
349 /* If we have been given a wired unit number, check for existing device */
351 if (unit >= 0 && unit < dc->maxunit && dc->devices[unit] != NULL) {
353 printf("%s-: %s%d exists, using next available unit number\n",
354 dc->name, dc->name, unit);
355 /* find the next available slot */
356 while (++unit < dc->maxunit && dc->devices[unit] != NULL)
361 /* Unwired device, find the next available slot for it */
363 while (unit < dc->maxunit && dc->devices[unit] != NULL)
368 * We've selected a unit beyond the length of the table, so let's extend
369 * the table to make room for all units up to and including this one.
371 if (unit >= dc->maxunit) {
375 newsize = roundup((unit + 1), MINALLOCSIZE / sizeof(device_t));
376 newlist = malloc(sizeof(device_t) * newsize, M_BUS, M_NOWAIT);
379 bcopy(dc->devices, newlist, sizeof(device_t) * dc->maxunit);
380 bzero(newlist + dc->maxunit,
381 sizeof(device_t) * (newsize - dc->maxunit));
383 free(dc->devices, M_BUS);
384 dc->devices = newlist;
385 dc->maxunit = newsize;
387 PDEBUG(("now: unit %d in devclass %s", unit, DEVCLANAME(dc)));
394 devclass_add_device(devclass_t dc, device_t dev)
398 PDEBUG(("%s in devclass %s", DEVICENAME(dev), DEVCLANAME(dc)));
400 buflen = strlen(dc->name) + 5;
401 dev->nameunit = malloc(buflen, M_BUS, M_NOWAIT);
404 bzero(dev->nameunit, buflen);
406 if ((error = devclass_alloc_unit(dc, &dev->unit)) != 0) {
407 free(dev->nameunit, M_BUS);
408 dev->nameunit = NULL;
411 dc->devices[dev->unit] = dev;
413 snprintf(dev->nameunit, buflen, "%s%d", dc->name, dev->unit);
415 #ifdef DEVICE_SYSCTLS
416 device_register_oids(dev);
423 devclass_delete_device(devclass_t dc, device_t dev)
428 PDEBUG(("%s in devclass %s", DEVICENAME(dev), DEVCLANAME(dc)));
430 if (dev->devclass != dc
431 || dc->devices[dev->unit] != dev)
432 panic("devclass_delete_device: inconsistent device class");
433 dc->devices[dev->unit] = NULL;
434 if (dev->flags & DF_WILDCARD)
436 dev->devclass = NULL;
437 free(dev->nameunit, M_BUS);
438 dev->nameunit = NULL;
440 #ifdef DEVICE_SYSCTLS
441 device_unregister_oids(dev);
448 make_device(device_t parent, const char *name, int unit)
453 PDEBUG(("%s at %s as unit %d", name, DEVICENAME(parent), unit));
456 dc = devclass_find_internal(name, TRUE);
458 printf("make_device: can't find device class %s\n", name);
464 dev = malloc(sizeof(struct device), M_BUS, M_NOWAIT);
467 bzero(dev, sizeof(struct device));
469 dev->parent = parent;
470 TAILQ_INIT(&dev->children);
471 kobj_init((kobj_t) dev, &null_class);
473 dev->devclass = NULL;
475 dev->nameunit = NULL;
479 dev->flags = DF_ENABLED;
482 dev->flags |= DF_WILDCARD;
484 dev->flags |= DF_FIXEDCLASS;
485 devclass_add_device(dc, dev);
490 dev->state = DS_NOTPRESENT;
492 kobj_init((kobj_t) dev, &null_class);
498 device_print_child(device_t dev, device_t child)
502 if (device_is_alive(child)) {
503 retval += BUS_PRINT_CHILD(dev, child);
505 retval += device_printf(child, " not found\n");
511 device_add_child(device_t dev, const char *name, int unit)
513 return device_add_child_ordered(dev, 0, name, unit);
517 device_add_child_ordered(device_t dev, int order, const char *name, int unit)
522 PDEBUG(("%s at %s with order %d as unit %d",
523 name, DEVICENAME(dev), order, unit));
525 child = make_device(dev, name, unit);
528 child->order = order;
530 TAILQ_FOREACH(place, &dev->children, link)
531 if (place->order > order)
536 * The device 'place' is the first device whose order is
537 * greater than the new child.
539 TAILQ_INSERT_BEFORE(place, child, link);
542 * The new child's order is greater or equal to the order of
543 * any existing device. Add the child to the tail of the list.
545 TAILQ_INSERT_TAIL(&dev->children, child, link);
552 device_delete_child(device_t dev, device_t child)
557 PDEBUG(("%s from %s", DEVICENAME(child), DEVICENAME(dev)));
559 /* remove children first */
560 while ( (grandchild = TAILQ_FIRST(&child->children)) ) {
561 error = device_delete_child(child, grandchild);
566 if ((error = device_detach(child)) != 0)
569 devclass_delete_device(child->devclass, child);
570 TAILQ_REMOVE(&dev->children, child, link);
571 device_set_desc(child, NULL);
578 * Find only devices attached to this bus.
581 device_find_child(device_t dev, const char *classname, int unit)
586 dc = devclass_find(classname);
590 child = devclass_get_device(dc, unit);
591 if (child && child->parent == dev)
597 first_matching_driver(devclass_t dc, device_t dev)
600 return devclass_find_driver_internal(dc, dev->devclass->name);
602 return TAILQ_FIRST(&dc->drivers);
606 next_matching_driver(devclass_t dc, device_t dev, driverlink_t last)
610 for (dl = TAILQ_NEXT(last, link); dl; dl = TAILQ_NEXT(dl, link))
611 if (!strcmp(dev->devclass->name, dl->driver->name))
615 return TAILQ_NEXT(last, link);
619 device_probe_child(device_t dev, device_t child)
622 driverlink_t best = 0;
625 int hasclass = (child->devclass != 0);
629 panic("device_probe_child: parent device has no devclass");
631 if (child->state == DS_ALIVE)
634 for (dl = first_matching_driver(dc, child);
636 dl = next_matching_driver(dc, child, dl)) {
637 PDEBUG(("Trying %s", DRIVERNAME(dl->driver)));
638 device_set_driver(child, dl->driver);
640 device_set_devclass(child, dl->driver->name);
641 result = DEVICE_PROBE(child);
643 device_set_devclass(child, 0);
646 * If the driver returns SUCCESS, there can be no higher match
656 * The driver returned an error so it certainly doesn't match.
659 device_set_driver(child, 0);
664 * A priority lower than SUCCESS, remember the best matching
665 * driver. Initialise the value of pri for the first match.
667 if (best == 0 || result > pri) {
675 * If we found a driver, change state and initialise the devclass.
678 if (!child->devclass)
679 device_set_devclass(child, best->driver->name);
680 device_set_driver(child, best->driver);
683 * A bit bogus. Call the probe method again to make sure
684 * that we have the right description.
688 child->state = DS_ALIVE;
696 device_get_parent(device_t dev)
702 device_get_children(device_t dev, device_t **devlistp, int *devcountp)
709 for (child = TAILQ_FIRST(&dev->children); child;
710 child = TAILQ_NEXT(child, link))
713 list = malloc(count * sizeof(device_t), M_TEMP, M_NOWAIT);
716 bzero(list, count * sizeof(device_t));
719 for (child = TAILQ_FIRST(&dev->children); child;
720 child = TAILQ_NEXT(child, link)) {
732 device_get_driver(device_t dev)
738 device_get_devclass(device_t dev)
740 return dev->devclass;
744 device_get_name(device_t dev)
747 return devclass_get_name(dev->devclass);
752 device_get_nameunit(device_t dev)
754 return dev->nameunit;
758 device_get_unit(device_t dev)
764 device_get_desc(device_t dev)
770 device_get_flags(device_t dev)
772 return dev->devflags;
776 device_print_prettyname(device_t dev)
778 const char *name = device_get_name(dev);
781 return printf("unknown: ");
783 return printf("%s%d: ", name, device_get_unit(dev));
787 device_printf(device_t dev, const char * fmt, ...)
792 retval = device_print_prettyname(dev);
794 retval += vprintf(fmt, ap);
800 device_set_desc_internal(device_t dev, const char* desc, int copy)
802 if (dev->desc && (dev->flags & DF_DESCMALLOCED)) {
803 free(dev->desc, M_BUS);
804 dev->flags &= ~DF_DESCMALLOCED;
809 dev->desc = malloc(strlen(desc) + 1, M_BUS, M_NOWAIT);
811 strcpy(dev->desc, desc);
812 dev->flags |= DF_DESCMALLOCED;
815 /* Avoid a -Wcast-qual warning */
816 dev->desc = (char *)(uintptr_t) desc;
818 #ifdef DEVICE_SYSCTLS
820 struct sysctl_oid *oid = &dev->oid[1];
821 oid->oid_arg1 = dev->desc ? dev->desc : "";
822 oid->oid_arg2 = dev->desc ? strlen(dev->desc) : 0;
828 device_set_desc(device_t dev, const char* desc)
830 device_set_desc_internal(dev, desc, FALSE);
834 device_set_desc_copy(device_t dev, const char* desc)
836 device_set_desc_internal(dev, desc, TRUE);
840 device_set_flags(device_t dev, u_int32_t flags)
842 dev->devflags = flags;
846 device_get_softc(device_t dev)
852 device_set_softc(device_t dev, void *softc)
854 if (dev->softc && !(dev->flags & DF_EXTERNALSOFTC))
855 free(dev->softc, M_BUS);
858 dev->flags |= DF_EXTERNALSOFTC;
860 dev->flags &= ~DF_EXTERNALSOFTC;
864 device_get_ivars(device_t dev)
870 device_set_ivars(device_t dev, void * ivars)
881 device_get_state(device_t dev)
887 device_enable(device_t dev)
889 dev->flags |= DF_ENABLED;
893 device_disable(device_t dev)
895 dev->flags &= ~DF_ENABLED;
902 device_busy(device_t dev)
904 if (dev->state < DS_ATTACHED)
905 panic("device_busy: called for unattached device");
906 if (dev->busy == 0 && dev->parent)
907 device_busy(dev->parent);
909 dev->state = DS_BUSY;
916 device_unbusy(device_t dev)
918 if (dev->state != DS_BUSY)
919 panic("device_unbusy: called for non-busy device");
921 if (dev->busy == 0) {
923 device_unbusy(dev->parent);
924 dev->state = DS_ATTACHED;
929 device_quiet(device_t dev)
931 dev->flags |= DF_QUIET;
935 device_verbose(device_t dev)
937 dev->flags &= ~DF_QUIET;
941 device_is_quiet(device_t dev)
943 return (dev->flags & DF_QUIET) != 0;
947 device_is_enabled(device_t dev)
949 return (dev->flags & DF_ENABLED) != 0;
953 device_is_alive(device_t dev)
955 return dev->state >= DS_ALIVE;
959 device_set_devclass(device_t dev, const char *classname)
965 devclass_delete_device(dev->devclass, dev);
970 printf("device_set_devclass: device class already set\n");
974 dc = devclass_find_internal(classname, TRUE);
978 return devclass_add_device(dc, dev);
982 device_set_driver(device_t dev, driver_t *driver)
984 if (dev->state >= DS_ATTACHED)
987 if (dev->driver == driver)
990 if (dev->softc && !(dev->flags & DF_EXTERNALSOFTC)) {
991 free(dev->softc, M_BUS);
994 kobj_delete((kobj_t) dev, 0);
995 dev->driver = driver;
997 kobj_init((kobj_t) dev, (kobj_class_t) driver);
998 if (!(dev->flags & DF_EXTERNALSOFTC)) {
999 dev->softc = malloc(driver->size, M_BUS, M_NOWAIT);
1001 kobj_init((kobj_t) dev, &null_class);
1005 bzero(dev->softc, driver->size);
1008 kobj_init((kobj_t) dev, &null_class);
1013 device_probe_and_attach(device_t dev)
1015 device_t bus = dev->parent;
1017 int hasclass = (dev->devclass != 0);
1019 if (dev->state >= DS_ALIVE)
1022 if (dev->flags & DF_ENABLED) {
1023 error = device_probe_child(bus, dev);
1025 if (!device_is_quiet(dev))
1026 device_print_child(bus, dev);
1027 error = DEVICE_ATTACH(dev);
1029 dev->state = DS_ATTACHED;
1031 printf("device_probe_and_attach: %s%d attach returned %d\n",
1032 dev->driver->name, dev->unit, error);
1033 /* Unset the class that was set in device_probe_child */
1035 device_set_devclass(dev, 0);
1036 device_set_driver(dev, NULL);
1037 dev->state = DS_NOTPRESENT;
1040 if (!(dev->flags & DF_DONENOMATCH)) {
1041 BUS_PROBE_NOMATCH(bus, dev);
1042 dev->flags |= DF_DONENOMATCH;
1047 device_print_prettyname(dev);
1048 printf("not probed (disabled)\n");
1056 device_detach(device_t dev)
1060 PDEBUG(("%s", DEVICENAME(dev)));
1061 if (dev->state == DS_BUSY)
1063 if (dev->state != DS_ATTACHED)
1066 if ((error = DEVICE_DETACH(dev)) != 0)
1068 device_printf(dev, "detached\n");
1070 BUS_CHILD_DETACHED(dev->parent, dev);
1072 if (!(dev->flags & DF_FIXEDCLASS))
1073 devclass_delete_device(dev->devclass, dev);
1075 dev->state = DS_NOTPRESENT;
1076 device_set_driver(dev, NULL);
1082 device_shutdown(device_t dev)
1084 if (dev->state < DS_ATTACHED)
1086 return DEVICE_SHUTDOWN(dev);
1090 device_set_unit(device_t dev, int unit)
1095 dc = device_get_devclass(dev);
1096 if (unit < dc->maxunit && dc->devices[unit])
1098 err = devclass_delete_device(dc, dev);
1102 err = devclass_add_device(dc, dev);
1108 #ifdef DEVICE_SYSCTLS
1111 * Sysctl nodes for devices.
1114 SYSCTL_NODE(_hw, OID_AUTO, devices, CTLFLAG_RW, 0, "A list of all devices");
1117 sysctl_handle_children(SYSCTL_HANDLER_ARGS)
1119 device_t dev = arg1;
1121 int first = 1, error = 0;
1123 for (child = TAILQ_FIRST(&dev->children); child;
1124 child = TAILQ_NEXT(child, link)) {
1125 if (child->nameunit) {
1127 error = SYSCTL_OUT(req, ",", 1);
1128 if (error) return error;
1132 error = SYSCTL_OUT(req, child->nameunit, strlen(child->nameunit));
1133 if (error) return error;
1137 error = SYSCTL_OUT(req, "", 1);
1143 sysctl_handle_state(SYSCTL_HANDLER_ARGS)
1145 device_t dev = arg1;
1147 switch (dev->state) {
1149 return SYSCTL_OUT(req, "notpresent", sizeof("notpresent"));
1151 return SYSCTL_OUT(req, "alive", sizeof("alive"));
1153 return SYSCTL_OUT(req, "attached", sizeof("attached"));
1155 return SYSCTL_OUT(req, "busy", sizeof("busy"));
1162 device_register_oids(device_t dev)
1164 struct sysctl_oid* oid;
1167 bzero(oid, sizeof(*oid));
1168 oid->oid_parent = &sysctl__hw_devices_children;
1169 oid->oid_number = OID_AUTO;
1170 oid->oid_kind = CTLTYPE_NODE | CTLFLAG_RW;
1171 oid->oid_arg1 = &dev->oidlist[0];
1173 oid->oid_name = dev->nameunit;
1174 oid->oid_handler = 0;
1176 SLIST_INIT(&dev->oidlist[0]);
1177 sysctl_register_oid(oid);
1180 bzero(oid, sizeof(*oid));
1181 oid->oid_parent = &dev->oidlist[0];
1182 oid->oid_number = OID_AUTO;
1183 oid->oid_kind = CTLTYPE_STRING | CTLFLAG_RD;
1184 oid->oid_arg1 = dev->desc ? dev->desc : "";
1185 oid->oid_arg2 = dev->desc ? strlen(dev->desc) : 0;
1186 oid->oid_name = "desc";
1187 oid->oid_handler = sysctl_handle_string;
1189 sysctl_register_oid(oid);
1192 bzero(oid, sizeof(*oid));
1193 oid->oid_parent = &dev->oidlist[0];
1194 oid->oid_number = OID_AUTO;
1195 oid->oid_kind = CTLTYPE_INT | CTLFLAG_RD;
1196 oid->oid_arg1 = dev;
1198 oid->oid_name = "children";
1199 oid->oid_handler = sysctl_handle_children;
1201 sysctl_register_oid(oid);
1204 bzero(oid, sizeof(*oid));
1205 oid->oid_parent = &dev->oidlist[0];
1206 oid->oid_number = OID_AUTO;
1207 oid->oid_kind = CTLTYPE_INT | CTLFLAG_RD;
1208 oid->oid_arg1 = dev;
1210 oid->oid_name = "state";
1211 oid->oid_handler = sysctl_handle_state;
1213 sysctl_register_oid(oid);
1217 device_unregister_oids(device_t dev)
1219 sysctl_unregister_oid(&dev->oid[0]);
1220 sysctl_unregister_oid(&dev->oid[1]);
1221 sysctl_unregister_oid(&dev->oid[2]);
1226 /*======================================*/
1228 * Access functions for device resources.
1231 /* Supplied by config(8) in ioconf.c */
1232 extern struct config_device config_devtab[];
1233 extern int devtab_count;
1235 /* Runtime version */
1236 struct config_device *devtab = config_devtab;
1239 resource_new_name(const char *name, int unit)
1241 struct config_device *new;
1243 new = malloc((devtab_count + 1) * sizeof(*new), M_TEMP, M_NOWAIT);
1246 if (devtab && devtab_count > 0)
1247 bcopy(devtab, new, devtab_count * sizeof(*new));
1248 bzero(&new[devtab_count], sizeof(*new));
1249 new[devtab_count].name = malloc(strlen(name) + 1, M_TEMP, M_NOWAIT);
1250 if (new[devtab_count].name == NULL) {
1254 strcpy(new[devtab_count].name, name);
1255 new[devtab_count].unit = unit;
1256 new[devtab_count].resource_count = 0;
1257 new[devtab_count].resources = NULL;
1259 return devtab_count++;
1263 resource_new_resname(int j, const char *resname, resource_type type)
1265 struct config_resource *new;
1268 i = devtab[j].resource_count;
1269 new = malloc((i + 1) * sizeof(*new), M_TEMP, M_NOWAIT);
1272 if (devtab[j].resources && i > 0)
1273 bcopy(devtab[j].resources, new, i * sizeof(*new));
1274 bzero(&new[i], sizeof(*new));
1275 new[i].name = malloc(strlen(resname) + 1, M_TEMP, M_NOWAIT);
1276 if (new[i].name == NULL) {
1280 strcpy(new[i].name, resname);
1282 if (devtab[j].resources)
1283 free(devtab[j].resources, M_TEMP);
1284 devtab[j].resources = new;
1285 devtab[j].resource_count = i + 1;
1290 resource_match_string(int i, const char *resname, const char *value)
1293 struct config_resource *res;
1295 for (j = 0, res = devtab[i].resources;
1296 j < devtab[i].resource_count; j++, res++)
1297 if (!strcmp(res->name, resname)
1298 && res->type == RES_STRING
1299 && !strcmp(res->u.stringval, value))
1305 resource_find(const char *name, int unit, const char *resname,
1306 struct config_resource **result)
1309 struct config_resource *res;
1312 * First check specific instances, then generic.
1314 for (i = 0; i < devtab_count; i++) {
1315 if (devtab[i].unit < 0)
1317 if (!strcmp(devtab[i].name, name) && devtab[i].unit == unit) {
1318 res = devtab[i].resources;
1319 for (j = 0; j < devtab[i].resource_count; j++, res++)
1320 if (!strcmp(res->name, resname)) {
1326 for (i = 0; i < devtab_count; i++) {
1327 if (devtab[i].unit >= 0)
1329 /* XXX should this `&& devtab[i].unit == unit' be here? */
1330 /* XXX if so, then the generic match does nothing */
1331 if (!strcmp(devtab[i].name, name) && devtab[i].unit == unit) {
1332 res = devtab[i].resources;
1333 for (j = 0; j < devtab[i].resource_count; j++, res++)
1334 if (!strcmp(res->name, resname)) {
1344 resource_int_value(const char *name, int unit, const char *resname, int *result)
1347 struct config_resource *res;
1349 if ((error = resource_find(name, unit, resname, &res)) != 0)
1351 if (res->type != RES_INT)
1353 *result = res->u.intval;
1358 resource_long_value(const char *name, int unit, const char *resname,
1362 struct config_resource *res;
1364 if ((error = resource_find(name, unit, resname, &res)) != 0)
1366 if (res->type != RES_LONG)
1368 *result = res->u.longval;
1373 resource_string_value(const char *name, int unit, const char *resname,
1377 struct config_resource *res;
1379 if ((error = resource_find(name, unit, resname, &res)) != 0)
1381 if (res->type != RES_STRING)
1383 *result = res->u.stringval;
1388 resource_query_string(int i, const char *resname, const char *value)
1394 for (; i < devtab_count; i++)
1395 if (resource_match_string(i, resname, value) >= 0)
1401 resource_locate(int i, const char *resname)
1407 for (; i < devtab_count; i++)
1408 if (!strcmp(devtab[i].name, resname))
1414 resource_count(void)
1416 return devtab_count;
1420 resource_query_name(int i)
1422 return devtab[i].name;
1426 resource_query_unit(int i)
1428 return devtab[i].unit;
1432 resource_create(const char *name, int unit, const char *resname,
1433 resource_type type, struct config_resource **result)
1436 struct config_resource *res = NULL;
1438 for (i = 0; i < devtab_count; i++) {
1439 if (!strcmp(devtab[i].name, name) && devtab[i].unit == unit) {
1440 res = devtab[i].resources;
1445 i = resource_new_name(name, unit);
1448 res = devtab[i].resources;
1450 for (j = 0; j < devtab[i].resource_count; j++, res++) {
1451 if (!strcmp(res->name, resname)) {
1456 j = resource_new_resname(i, resname, type);
1459 res = &devtab[i].resources[j];
1465 resource_set_int(const char *name, int unit, const char *resname, int value)
1468 struct config_resource *res;
1470 error = resource_create(name, unit, resname, RES_INT, &res);
1473 if (res->type != RES_INT)
1475 res->u.intval = value;
1480 resource_set_long(const char *name, int unit, const char *resname, long value)
1483 struct config_resource *res;
1485 error = resource_create(name, unit, resname, RES_LONG, &res);
1488 if (res->type != RES_LONG)
1490 res->u.longval = value;
1495 resource_set_string(const char *name, int unit, const char *resname,
1499 struct config_resource *res;
1501 error = resource_create(name, unit, resname, RES_STRING, &res);
1504 if (res->type != RES_STRING)
1506 if (res->u.stringval)
1507 free(res->u.stringval, M_TEMP);
1508 res->u.stringval = malloc(strlen(value) + 1, M_TEMP, M_NOWAIT);
1509 if (res->u.stringval == NULL)
1511 strcpy(res->u.stringval, value);
1517 resource_cfgload(void *dummy __unused)
1519 struct config_resource *res, *cfgres;
1522 char *name, *resname;
1526 int config_devtab_count;
1528 config_devtab_count = devtab_count;
1532 for (i = 0; i < config_devtab_count; i++) {
1533 name = config_devtab[i].name;
1534 unit = config_devtab[i].unit;
1536 for (j = 0; j < config_devtab[i].resource_count; j++) {
1537 cfgres = config_devtab[i].resources;
1538 resname = cfgres[j].name;
1539 type = cfgres[j].type;
1540 error = resource_create(name, unit, resname, type,
1543 printf("create resource %s%d: error %d\n",
1547 if (res->type != type) {
1548 printf("type mismatch %s%d: %d != %d\n",
1549 name, unit, res->type, type);
1554 res->u.intval = cfgres[j].u.intval;
1557 res->u.longval = cfgres[j].u.longval;
1560 if (res->u.stringval)
1561 free(res->u.stringval, M_TEMP);
1562 stringval = cfgres[j].u.stringval;
1563 res->u.stringval = malloc(strlen(stringval) + 1,
1565 if (res->u.stringval == NULL)
1567 strcpy(res->u.stringval, stringval);
1570 panic("unknown resource type %d\n", type);
1575 SYSINIT(cfgload, SI_SUB_KMEM, SI_ORDER_ANY + 50, resource_cfgload, 0)
1578 /*======================================*/
1580 * Some useful method implementations to make life easier for bus drivers.
1584 resource_list_init(struct resource_list *rl)
1590 resource_list_free(struct resource_list *rl)
1592 struct resource_list_entry *rle;
1594 while ((rle = SLIST_FIRST(rl)) != NULL) {
1596 panic("resource_list_free: resource entry is busy");
1597 SLIST_REMOVE_HEAD(rl, link);
1603 resource_list_add(struct resource_list *rl,
1605 u_long start, u_long end, u_long count)
1607 struct resource_list_entry *rle;
1609 rle = resource_list_find(rl, type, rid);
1611 rle = malloc(sizeof(struct resource_list_entry), M_BUS, M_NOWAIT);
1613 panic("resource_list_add: can't record entry");
1614 SLIST_INSERT_HEAD(rl, rle, link);
1621 panic("resource_list_add: resource entry is busy");
1628 struct resource_list_entry*
1629 resource_list_find(struct resource_list *rl,
1632 struct resource_list_entry *rle;
1634 SLIST_FOREACH(rle, rl, link)
1635 if (rle->type == type && rle->rid == rid)
1641 resource_list_delete(struct resource_list *rl,
1644 struct resource_list_entry *rle = resource_list_find(rl, type, rid);
1647 SLIST_REMOVE(rl, rle, resource_list_entry, link);
1653 resource_list_alloc(struct resource_list *rl,
1654 device_t bus, device_t child,
1656 u_long start, u_long end,
1657 u_long count, u_int flags)
1659 struct resource_list_entry *rle = 0;
1660 int passthrough = (device_get_parent(child) != bus);
1661 int isdefault = (start == 0UL && end == ~0UL);
1664 return BUS_ALLOC_RESOURCE(device_get_parent(bus), child,
1666 start, end, count, flags);
1669 rle = resource_list_find(rl, type, *rid);
1672 return 0; /* no resource of that type/rid */
1674 panic("resource_list_alloc: resource entry is busy");
1678 count = max(count, rle->count);
1679 end = max(rle->end, start + count - 1);
1682 rle->res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child,
1683 type, rid, start, end, count, flags);
1686 * Record the new range.
1689 rle->start = rman_get_start(rle->res);
1690 rle->end = rman_get_end(rle->res);
1698 resource_list_release(struct resource_list *rl,
1699 device_t bus, device_t child,
1700 int type, int rid, struct resource *res)
1702 struct resource_list_entry *rle = 0;
1703 int passthrough = (device_get_parent(child) != bus);
1707 return BUS_RELEASE_RESOURCE(device_get_parent(bus), child,
1711 rle = resource_list_find(rl, type, rid);
1714 panic("resource_list_release: can't find resource");
1716 panic("resource_list_release: resource entry is not busy");
1718 error = BUS_RELEASE_RESOURCE(device_get_parent(bus), child,
1728 resource_list_print_type(struct resource_list *rl, const char *name, int type,
1731 struct resource_list_entry *rle;
1732 int printed, retval;
1736 /* Yes, this is kinda cheating */
1737 SLIST_FOREACH(rle, rl, link) {
1738 if (rle->type == type) {
1740 retval += printf(" %s ", name);
1742 retval += printf(",");
1744 retval += printf(format, rle->start);
1745 if (rle->count > 1) {
1746 retval += printf("-");
1747 retval += printf(format, rle->start +
1756 * Call DEVICE_IDENTIFY for each driver.
1759 bus_generic_probe(device_t dev)
1761 devclass_t dc = dev->devclass;
1764 for (dl = TAILQ_FIRST(&dc->drivers); dl; dl = TAILQ_NEXT(dl, link))
1765 DEVICE_IDENTIFY(dl->driver, dev);
1771 bus_generic_attach(device_t dev)
1775 for (child = TAILQ_FIRST(&dev->children);
1776 child; child = TAILQ_NEXT(child, link))
1777 device_probe_and_attach(child);
1783 bus_generic_detach(device_t dev)
1788 if (dev->state != DS_ATTACHED)
1791 for (child = TAILQ_FIRST(&dev->children);
1792 child; child = TAILQ_NEXT(child, link))
1793 if ((error = device_detach(child)) != 0)
1800 bus_generic_shutdown(device_t dev)
1804 for (child = TAILQ_FIRST(&dev->children);
1805 child; child = TAILQ_NEXT(child, link))
1806 device_shutdown(child);
1812 bus_generic_suspend(device_t dev)
1815 device_t child, child2;
1817 for (child = TAILQ_FIRST(&dev->children);
1818 child; child = TAILQ_NEXT(child, link)) {
1819 error = DEVICE_SUSPEND(child);
1821 for (child2 = TAILQ_FIRST(&dev->children);
1822 child2 && child2 != child;
1823 child2 = TAILQ_NEXT(child2, link))
1824 DEVICE_RESUME(child2);
1832 bus_generic_resume(device_t dev)
1836 for (child = TAILQ_FIRST(&dev->children);
1837 child; child = TAILQ_NEXT(child, link)) {
1838 DEVICE_RESUME(child);
1839 /* if resume fails, there's nothing we can usefully do... */
1845 bus_print_child_header (device_t dev, device_t child)
1849 if (device_get_desc(child)) {
1850 retval += device_printf(child, "<%s>",
1851 device_get_desc(child));
1853 retval += printf("%s", device_get_nameunit(child));
1860 bus_print_child_footer (device_t dev, device_t child)
1862 return(printf(" on %s\n", device_get_nameunit(dev)));
1866 bus_generic_print_child(device_t dev, device_t child)
1870 retval += bus_print_child_header(dev, child);
1871 retval += bus_print_child_footer(dev, child);
1877 bus_generic_read_ivar(device_t dev, device_t child, int index,
1884 bus_generic_write_ivar(device_t dev, device_t child, int index,
1891 bus_generic_driver_added(device_t dev, driver_t *driver)
1895 DEVICE_IDENTIFY(driver, dev);
1896 for (child = TAILQ_FIRST(&dev->children);
1897 child; child = TAILQ_NEXT(child, link))
1898 if (child->state == DS_NOTPRESENT)
1899 device_probe_and_attach(child);
1903 bus_generic_setup_intr(device_t dev, device_t child, struct resource *irq,
1904 int flags, driver_intr_t *intr, void *arg,
1907 /* Propagate up the bus hierarchy until someone handles it. */
1909 return (BUS_SETUP_INTR(dev->parent, child, irq, flags,
1910 intr, arg, cookiep));
1916 bus_generic_teardown_intr(device_t dev, device_t child, struct resource *irq,
1919 /* Propagate up the bus hierarchy until someone handles it. */
1921 return (BUS_TEARDOWN_INTR(dev->parent, child, irq, cookie));
1927 bus_generic_alloc_resource(device_t dev, device_t child, int type, int *rid,
1928 u_long start, u_long end, u_long count, u_int flags)
1930 /* Propagate up the bus hierarchy until someone handles it. */
1932 return (BUS_ALLOC_RESOURCE(dev->parent, child, type, rid,
1933 start, end, count, flags));
1939 bus_generic_release_resource(device_t dev, device_t child, int type, int rid,
1942 /* Propagate up the bus hierarchy until someone handles it. */
1944 return (BUS_RELEASE_RESOURCE(dev->parent, child, type, rid,
1951 bus_generic_activate_resource(device_t dev, device_t child, int type, int rid,
1954 /* Propagate up the bus hierarchy until someone handles it. */
1956 return (BUS_ACTIVATE_RESOURCE(dev->parent, child, type, rid,
1963 bus_generic_deactivate_resource(device_t dev, device_t child, int type,
1964 int rid, struct resource *r)
1966 /* Propagate up the bus hierarchy until someone handles it. */
1968 return (BUS_DEACTIVATE_RESOURCE(dev->parent, child, type, rid,
1975 * Some convenience functions to make it easier for drivers to use the
1976 * resource-management functions. All these really do is hide the
1977 * indirection through the parent's method table, making for slightly
1978 * less-wordy code. In the future, it might make sense for this code
1979 * to maintain some sort of a list of resources allocated by each device.
1982 bus_alloc_resource(device_t dev, int type, int *rid, u_long start, u_long end,
1983 u_long count, u_int flags)
1985 if (dev->parent == 0)
1987 return (BUS_ALLOC_RESOURCE(dev->parent, dev, type, rid, start, end,
1992 bus_activate_resource(device_t dev, int type, int rid, struct resource *r)
1994 if (dev->parent == 0)
1996 return (BUS_ACTIVATE_RESOURCE(dev->parent, dev, type, rid, r));
2000 bus_deactivate_resource(device_t dev, int type, int rid, struct resource *r)
2002 if (dev->parent == 0)
2004 return (BUS_DEACTIVATE_RESOURCE(dev->parent, dev, type, rid, r));
2008 bus_release_resource(device_t dev, int type, int rid, struct resource *r)
2010 if (dev->parent == 0)
2012 return (BUS_RELEASE_RESOURCE(dev->parent, dev,
2017 bus_setup_intr(device_t dev, struct resource *r, int flags,
2018 driver_intr_t handler, void *arg, void **cookiep)
2020 if (dev->parent == 0)
2022 return (BUS_SETUP_INTR(dev->parent, dev, r, flags,
2023 handler, arg, cookiep));
2027 bus_teardown_intr(device_t dev, struct resource *r, void *cookie)
2029 if (dev->parent == 0)
2031 return (BUS_TEARDOWN_INTR(dev->parent, dev, r, cookie));
2035 bus_set_resource(device_t dev, int type, int rid,
2036 u_long start, u_long count)
2038 return BUS_SET_RESOURCE(device_get_parent(dev), dev, type, rid,
2043 bus_get_resource(device_t dev, int type, int rid,
2044 u_long *startp, u_long *countp)
2046 return BUS_GET_RESOURCE(device_get_parent(dev), dev, type, rid,
2051 bus_get_resource_start(device_t dev, int type, int rid)
2053 u_long start, count;
2056 error = BUS_GET_RESOURCE(device_get_parent(dev), dev, type, rid,
2064 bus_get_resource_count(device_t dev, int type, int rid)
2066 u_long start, count;
2069 error = BUS_GET_RESOURCE(device_get_parent(dev), dev, type, rid,
2077 bus_delete_resource(device_t dev, int type, int rid)
2079 BUS_DELETE_RESOURCE(device_get_parent(dev), dev, type, rid);
2083 root_print_child(device_t dev, device_t child)
2089 root_setup_intr(device_t dev, device_t child, driver_intr_t *intr, void *arg,
2093 * If an interrupt mapping gets to here something bad has happened.
2095 panic("root_setup_intr");
2098 static kobj_method_t root_methods[] = {
2099 /* Device interface */
2100 KOBJMETHOD(device_shutdown, bus_generic_shutdown),
2101 KOBJMETHOD(device_suspend, bus_generic_suspend),
2102 KOBJMETHOD(device_resume, bus_generic_resume),
2105 KOBJMETHOD(bus_print_child, root_print_child),
2106 KOBJMETHOD(bus_read_ivar, bus_generic_read_ivar),
2107 KOBJMETHOD(bus_write_ivar, bus_generic_write_ivar),
2108 KOBJMETHOD(bus_setup_intr, root_setup_intr),
2113 static driver_t root_driver = {
2120 devclass_t root_devclass;
2123 root_bus_module_handler(module_t mod, int what, void* arg)
2127 kobj_class_compile((kobj_class_t) &root_driver);
2128 root_bus = make_device(NULL, "root", 0);
2129 root_bus->desc = "System root bus";
2130 kobj_init((kobj_t) root_bus, (kobj_class_t) &root_driver);
2131 root_bus->driver = &root_driver;
2132 root_bus->state = DS_ATTACHED;
2133 root_devclass = devclass_find_internal("root", FALSE);
2137 device_shutdown(root_bus);
2144 static moduledata_t root_bus_mod = {
2146 root_bus_module_handler,
2149 DECLARE_MODULE(rootbus, root_bus_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
2152 root_bus_configure(void)
2158 for (dev = TAILQ_FIRST(&root_bus->children); dev;
2159 dev = TAILQ_NEXT(dev, link)) {
2160 device_probe_and_attach(dev);
2165 driver_module_handler(module_t mod, int what, void *arg)
2168 struct driver_module_data *dmd;
2169 devclass_t bus_devclass;
2171 dmd = (struct driver_module_data *)arg;
2172 bus_devclass = devclass_find_internal(dmd->dmd_busname, TRUE);
2177 if (dmd->dmd_chainevh)
2178 error = dmd->dmd_chainevh(mod,what,dmd->dmd_chainarg);
2180 for (i = 0; !error && i < dmd->dmd_ndrivers; i++) {
2181 PDEBUG(("Loading module: driver %s on bus %s",
2182 DRIVERNAME(dmd->dmd_drivers[i]),
2184 error = devclass_add_driver(bus_devclass,
2185 dmd->dmd_drivers[i]);
2191 * The drivers loaded in this way are assumed to all
2192 * implement the same devclass.
2194 *dmd->dmd_devclass =
2195 devclass_find_internal(dmd->dmd_drivers[0]->name,
2200 for (i = 0; !error && i < dmd->dmd_ndrivers; i++) {
2201 PDEBUG(("Unloading module: driver %s from bus %s",
2202 DRIVERNAME(dmd->dmd_drivers[i]),
2204 error = devclass_delete_driver(bus_devclass,
2205 dmd->dmd_drivers[i]);
2208 if (!error && dmd->dmd_chainevh)
2209 error = dmd->dmd_chainevh(mod,what,dmd->dmd_chainarg);
2218 /* the _short versions avoid iteration by not calling anything that prints
2219 * more than oneliners. I love oneliners.
2223 print_device_short(device_t dev, int indent)
2228 indentprintf(("device %d: <%s> %sparent,%schildren,%s%s%s%s,%sivars,%ssoftc,busy=%d\n",
2229 dev->unit, dev->desc,
2230 (dev->parent? "":"no "),
2231 (TAILQ_EMPTY(&dev->children)? "no ":""),
2232 (dev->flags&DF_ENABLED? "enabled,":"disabled,"),
2233 (dev->flags&DF_FIXEDCLASS? "fixed,":""),
2234 (dev->flags&DF_WILDCARD? "wildcard,":""),
2235 (dev->flags&DF_DESCMALLOCED? "descmalloced,":""),
2236 (dev->ivars? "":"no "),
2237 (dev->softc? "":"no "),
2242 print_device(device_t dev, int indent)
2247 print_device_short(dev, indent);
2249 indentprintf(("Parent:\n"));
2250 print_device_short(dev->parent, indent+1);
2251 indentprintf(("Driver:\n"));
2252 print_driver_short(dev->driver, indent+1);
2253 indentprintf(("Devclass:\n"));
2254 print_devclass_short(dev->devclass, indent+1);
2258 print_device_tree_short(device_t dev, int indent)
2259 /* print the device and all its children (indented) */
2266 print_device_short(dev, indent);
2268 for (child = TAILQ_FIRST(&dev->children); child;
2269 child = TAILQ_NEXT(child, link))
2270 print_device_tree_short(child, indent+1);
2274 print_device_tree(device_t dev, int indent)
2275 /* print the device and all its children (indented) */
2282 print_device(dev, indent);
2284 for (child = TAILQ_FIRST(&dev->children); child;
2285 child = TAILQ_NEXT(child, link))
2286 print_device_tree(child, indent+1);
2290 print_driver_short(driver_t *driver, int indent)
2295 indentprintf(("driver %s: softc size = %d\n",
2296 driver->name, driver->size));
2300 print_driver(driver_t *driver, int indent)
2305 print_driver_short(driver, indent);
2310 print_driver_list(driver_list_t drivers, int indent)
2312 driverlink_t driver;
2314 for (driver = TAILQ_FIRST(&drivers); driver;
2315 driver = TAILQ_NEXT(driver, link))
2316 print_driver(driver->driver, indent);
2320 print_devclass_short(devclass_t dc, int indent)
2325 indentprintf(("devclass %s: max units = %d\n",
2326 dc->name, dc->maxunit));
2330 print_devclass(devclass_t dc, int indent)
2337 print_devclass_short(dc, indent);
2338 indentprintf(("Drivers:\n"));
2339 print_driver_list(dc->drivers, indent+1);
2341 indentprintf(("Devices:\n"));
2342 for (i = 0; i < dc->maxunit; i++)
2344 print_device(dc->devices[i], indent+1);
2348 print_devclass_list_short(void)
2352 printf("Short listing of devclasses, drivers & devices:\n");
2353 for (dc = TAILQ_FIRST(&devclasses); dc; dc = TAILQ_NEXT(dc, link))
2354 print_devclass_short(dc, 0);
2358 print_devclass_list(void)
2362 printf("Full listing of devclasses, drivers & devices:\n");
2363 for (dc = TAILQ_FIRST(&devclasses); dc; dc = TAILQ_NEXT(dc, link))
2364 print_devclass(dc, 0);