2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/module.h>
43 #include <dev/gpio/gpiobusvar.h>
45 #include "gpiobus_if.h"
49 #define dprintf printf
51 #define dprintf(x, arg...)
54 static void gpiobus_print_pins(struct gpiobus_ivar *, char *, size_t);
55 static int gpiobus_parse_pins(struct gpiobus_softc *, device_t, int);
56 static int gpiobus_probe(device_t);
57 static int gpiobus_attach(device_t);
58 static int gpiobus_detach(device_t);
59 static int gpiobus_suspend(device_t);
60 static int gpiobus_resume(device_t);
61 static void gpiobus_probe_nomatch(device_t, device_t);
62 static int gpiobus_print_child(device_t, device_t);
63 static int gpiobus_child_location_str(device_t, device_t, char *, size_t);
64 static int gpiobus_child_pnpinfo_str(device_t, device_t, char *, size_t);
65 static device_t gpiobus_add_child(device_t, u_int, const char *, int);
66 static void gpiobus_hinted_child(device_t, const char *, int);
71 static int gpiobus_acquire_bus(device_t, device_t, int);
72 static void gpiobus_release_bus(device_t, device_t);
73 static int gpiobus_pin_setflags(device_t, device_t, uint32_t, uint32_t);
74 static int gpiobus_pin_getflags(device_t, device_t, uint32_t, uint32_t*);
75 static int gpiobus_pin_getcaps(device_t, device_t, uint32_t, uint32_t*);
76 static int gpiobus_pin_set(device_t, device_t, uint32_t, unsigned int);
77 static int gpiobus_pin_get(device_t, device_t, uint32_t, unsigned int*);
78 static int gpiobus_pin_toggle(device_t, device_t, uint32_t);
81 * XXX -> Move me to better place - gpio_subr.c?
82 * Also, this function must be changed when interrupt configuration
83 * data will be moved into struct resource.
88 gpio_alloc_intr_resource(device_t consumer_dev, int *rid, u_int alloc_flags,
89 gpio_pin_t pin, uint32_t intr_mode)
92 struct intr_map_data_gpio *gpio_data;
95 gpio_data = (struct intr_map_data_gpio *)intr_alloc_map_data(
96 INTR_MAP_DATA_GPIO, sizeof(*gpio_data), M_WAITOK | M_ZERO);
97 gpio_data->gpio_pin_num = pin->pin;
98 gpio_data->gpio_pin_flags = pin->flags;
99 gpio_data->gpio_intr_mode = intr_mode;
101 irq = intr_map_irq(pin->dev, 0, (struct intr_map_data *)gpio_data);
102 res = bus_alloc_resource(consumer_dev, SYS_RES_IRQ, rid, irq, irq, 1,
105 intr_free_intr_map_data((struct intr_map_data *)gpio_data);
108 rman_set_virtual(res, gpio_data);
113 gpio_alloc_intr_resource(device_t consumer_dev, int *rid, u_int alloc_flags,
114 gpio_pin_t pin, uint32_t intr_mode)
122 gpio_check_flags(uint32_t caps, uint32_t flags)
125 /* Filter unwanted flags. */
128 /* Cannot mix input/output together. */
129 if (flags & GPIO_PIN_INPUT && flags & GPIO_PIN_OUTPUT)
131 /* Cannot mix pull-up/pull-down together. */
132 if (flags & GPIO_PIN_PULLUP && flags & GPIO_PIN_PULLDOWN)
139 gpiobus_print_pins(struct gpiobus_ivar *devi, char *buf, size_t buflen)
142 int i, range_start, range_stop, need_coma;
144 if (devi->npins == 0)
148 range_start = range_stop = devi->pins[0];
149 for (i = 1; i < devi->npins; i++) {
150 if (devi->pins[i] != (range_stop + 1)) {
152 strlcat(buf, ",", buflen);
153 memset(tmp, 0, sizeof(tmp));
154 if (range_start != range_stop)
155 snprintf(tmp, sizeof(tmp) - 1, "%d-%d",
156 range_start, range_stop);
158 snprintf(tmp, sizeof(tmp) - 1, "%d",
160 strlcat(buf, tmp, buflen);
162 range_start = range_stop = devi->pins[i];
170 strlcat(buf, ",", buflen);
171 memset(tmp, 0, sizeof(tmp));
172 if (range_start != range_stop)
173 snprintf(tmp, sizeof(tmp) - 1, "%d-%d",
174 range_start, range_stop);
176 snprintf(tmp, sizeof(tmp) - 1, "%d",
178 strlcat(buf, tmp, buflen);
182 gpiobus_attach_bus(device_t dev)
186 busdev = device_add_child(dev, "gpiobus", -1);
189 if (device_add_child(dev, "gpioc", -1) == NULL) {
190 device_delete_child(dev, busdev);
194 ofw_gpiobus_register_provider(dev);
196 bus_generic_attach(dev);
202 gpiobus_detach_bus(device_t dev)
207 ofw_gpiobus_unregister_provider(dev);
209 err = bus_generic_detach(dev);
213 return (device_delete_children(dev));
217 gpiobus_init_softc(device_t dev)
219 struct gpiobus_softc *sc;
221 sc = GPIOBUS_SOFTC(dev);
223 sc->sc_dev = device_get_parent(dev);
224 sc->sc_intr_rman.rm_type = RMAN_ARRAY;
225 sc->sc_intr_rman.rm_descr = "GPIO Interrupts";
226 if (rman_init(&sc->sc_intr_rman) != 0 ||
227 rman_manage_region(&sc->sc_intr_rman, 0, ~0) != 0)
228 panic("%s: failed to set up rman.", __func__);
230 if (GPIO_PIN_MAX(sc->sc_dev, &sc->sc_npins) != 0)
233 KASSERT(sc->sc_npins >= 0, ("GPIO device with no pins"));
235 /* Pins = GPIO_PIN_MAX() + 1 */
238 sc->sc_pins = malloc(sizeof(*sc->sc_pins) * sc->sc_npins, M_DEVBUF,
240 if (sc->sc_pins == NULL)
243 /* Initialize the bus lock. */
244 GPIOBUS_LOCK_INIT(sc);
250 gpiobus_alloc_ivars(struct gpiobus_ivar *devi)
253 /* Allocate pins and flags memory. */
254 devi->pins = malloc(sizeof(uint32_t) * devi->npins, M_DEVBUF,
256 if (devi->pins == NULL)
262 gpiobus_free_ivars(struct gpiobus_ivar *devi)
266 free(devi->pins, M_DEVBUF);
273 gpiobus_acquire_pin(device_t bus, uint32_t pin)
275 struct gpiobus_softc *sc;
277 sc = device_get_softc(bus);
278 /* Consistency check. */
279 if (pin >= sc->sc_npins) {
281 "invalid pin %d, max: %d\n", pin, sc->sc_npins - 1);
284 /* Mark pin as mapped and give warning if it's already mapped. */
285 if (sc->sc_pins[pin].mapped) {
286 device_printf(bus, "warning: pin %d is already mapped\n", pin);
289 sc->sc_pins[pin].mapped = 1;
294 /* Release mapped pin */
296 gpiobus_release_pin(device_t bus, uint32_t pin)
298 struct gpiobus_softc *sc;
300 sc = device_get_softc(bus);
301 /* Consistency check. */
302 if (pin >= sc->sc_npins) {
304 "gpiobus_acquire_pin: invalid pin %d, max=%d\n",
305 pin, sc->sc_npins - 1);
309 if (!sc->sc_pins[pin].mapped) {
310 device_printf(bus, "gpiobus_acquire_pin: pin %d is not mapped\n", pin);
313 sc->sc_pins[pin].mapped = 0;
319 gpiobus_acquire_child_pins(device_t dev, device_t child)
321 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
324 for (i = 0; i < devi->npins; i++) {
325 /* Reserve the GPIO pin. */
326 if (gpiobus_acquire_pin(dev, devi->pins[i]) != 0) {
327 device_printf(child, "cannot acquire pin %d\n",
330 (void)gpiobus_release_pin(dev,
333 gpiobus_free_ivars(devi);
337 for (i = 0; i < devi->npins; i++) {
338 /* Use the child name as pin name. */
339 GPIOBUS_PIN_SETNAME(dev, devi->pins[i],
340 device_get_nameunit(child));
347 gpiobus_parse_pins(struct gpiobus_softc *sc, device_t child, int mask)
349 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
353 for (i = 0; i < 32; i++) {
358 device_printf(child, "empty pin mask\n");
362 if (gpiobus_alloc_ivars(devi) != 0) {
363 device_printf(child, "cannot allocate device ivars\n");
367 for (i = 0; i < 32; i++) {
368 if ((mask & (1 << i)) == 0)
370 devi->pins[npins++] = i;
373 if (gpiobus_acquire_child_pins(sc->sc_busdev, child) != 0)
379 gpiobus_parse_pin_list(struct gpiobus_softc *sc, device_t child,
382 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
391 pin = strtoul(p, &endp, 0);
401 device_printf(child, "garbage in the pin list: %s\n", endp);
405 device_printf(child, "empty pin list\n");
410 if (gpiobus_alloc_ivars(devi) != 0) {
411 device_printf(child, "cannot allocate device ivars\n");
418 pin = strtoul(p, &endp, 0);
428 if (gpiobus_acquire_child_pins(sc->sc_busdev, child) != 0)
434 gpiobus_probe(device_t dev)
436 device_set_desc(dev, "GPIO bus");
438 return (BUS_PROBE_GENERIC);
442 gpiobus_attach(device_t dev)
446 err = gpiobus_init_softc(dev);
451 * Get parent's pins and mark them as unmapped
453 bus_generic_probe(dev);
454 bus_enumerate_hinted_children(dev);
456 return (bus_generic_attach(dev));
460 * Since this is not a self-enumerating bus, and since we always add
461 * children in attach, we have to always delete children here.
464 gpiobus_detach(device_t dev)
466 struct gpiobus_softc *sc;
467 struct gpiobus_ivar *devi;
471 sc = GPIOBUS_SOFTC(dev);
472 KASSERT(mtx_initialized(&sc->sc_mtx),
473 ("gpiobus mutex not initialized"));
474 GPIOBUS_LOCK_DESTROY(sc);
476 if ((err = bus_generic_detach(dev)) != 0)
479 if ((err = device_get_children(dev, &devlist, &ndevs)) != 0)
481 for (i = 0; i < ndevs; i++) {
482 devi = GPIOBUS_IVAR(devlist[i]);
483 gpiobus_free_ivars(devi);
484 resource_list_free(&devi->rl);
485 free(devi, M_DEVBUF);
486 device_delete_child(dev, devlist[i]);
488 free(devlist, M_TEMP);
489 rman_fini(&sc->sc_intr_rman);
491 for (i = 0; i < sc->sc_npins; i++) {
492 if (sc->sc_pins[i].name != NULL)
493 free(sc->sc_pins[i].name, M_DEVBUF);
494 sc->sc_pins[i].name = NULL;
496 free(sc->sc_pins, M_DEVBUF);
504 gpiobus_suspend(device_t dev)
507 return (bus_generic_suspend(dev));
511 gpiobus_resume(device_t dev)
514 return (bus_generic_resume(dev));
518 gpiobus_probe_nomatch(device_t dev, device_t child)
521 struct gpiobus_ivar *devi;
523 devi = GPIOBUS_IVAR(child);
524 memset(pins, 0, sizeof(pins));
525 gpiobus_print_pins(devi, pins, sizeof(pins));
527 device_printf(dev, "<unknown device> at pins %s", pins);
529 device_printf(dev, "<unknown device> at pin %s", pins);
530 resource_list_print_type(&devi->rl, "irq", SYS_RES_IRQ, "%jd");
535 gpiobus_print_child(device_t dev, device_t child)
539 struct gpiobus_ivar *devi;
541 devi = GPIOBUS_IVAR(child);
542 memset(pins, 0, sizeof(pins));
543 retval += bus_print_child_header(dev, child);
544 if (devi->npins > 0) {
546 retval += printf(" at pins ");
548 retval += printf(" at pin ");
549 gpiobus_print_pins(devi, pins, sizeof(pins));
550 retval += printf("%s", pins);
552 resource_list_print_type(&devi->rl, "irq", SYS_RES_IRQ, "%jd");
553 retval += bus_print_child_footer(dev, child);
559 gpiobus_child_location_str(device_t bus, device_t child, char *buf,
562 struct gpiobus_ivar *devi;
564 devi = GPIOBUS_IVAR(child);
566 strlcpy(buf, "pins=", buflen);
568 strlcpy(buf, "pin=", buflen);
569 gpiobus_print_pins(devi, buf, buflen);
575 gpiobus_child_pnpinfo_str(device_t bus, device_t child, char *buf,
584 gpiobus_add_child(device_t dev, u_int order, const char *name, int unit)
587 struct gpiobus_ivar *devi;
589 child = device_add_child_ordered(dev, order, name, unit);
592 devi = malloc(sizeof(struct gpiobus_ivar), M_DEVBUF, M_NOWAIT | M_ZERO);
594 device_delete_child(dev, child);
597 resource_list_init(&devi->rl);
598 device_set_ivars(child, devi);
604 gpiobus_hinted_child(device_t bus, const char *dname, int dunit)
606 struct gpiobus_softc *sc = GPIOBUS_SOFTC(bus);
607 struct gpiobus_ivar *devi;
612 child = BUS_ADD_CHILD(bus, 0, dname, dunit);
613 devi = GPIOBUS_IVAR(child);
614 if (resource_int_value(dname, dunit, "pins", &pinmask) == 0) {
615 if (gpiobus_parse_pins(sc, child, pinmask)) {
616 resource_list_free(&devi->rl);
617 free(devi, M_DEVBUF);
618 device_delete_child(bus, child);
622 else if (resource_string_value(dname, dunit, "pin_list", &pins) == 0) {
623 if (gpiobus_parse_pin_list(sc, child, pins)) {
624 resource_list_free(&devi->rl);
625 free(devi, M_DEVBUF);
626 device_delete_child(bus, child);
630 if (resource_int_value(dname, dunit, "irq", &irq) == 0) {
631 if (bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1) != 0)
633 "warning: bus_set_resource() failed\n");
638 gpiobus_set_resource(device_t dev, device_t child, int type, int rid,
639 rman_res_t start, rman_res_t count)
641 struct gpiobus_ivar *devi;
642 struct resource_list_entry *rle;
644 dprintf("%s: entry (%p, %p, %d, %d, %p, %ld)\n",
645 __func__, dev, child, type, rid, (void *)(intptr_t)start, count);
646 devi = GPIOBUS_IVAR(child);
647 rle = resource_list_add(&devi->rl, type, rid, start,
648 start + count - 1, count);
656 gpiobus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
658 struct gpiobus_ivar *devi;
660 devi = GPIOBUS_IVAR(child);
662 case GPIOBUS_IVAR_NPINS:
663 *result = devi->npins;
665 case GPIOBUS_IVAR_PINS:
666 /* Children do not ever need to directly examine this. */
676 gpiobus_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
678 struct gpiobus_ivar *devi;
682 devi = GPIOBUS_IVAR(child);
684 case GPIOBUS_IVAR_NPINS:
685 /* GPIO ivars are set once. */
686 if (devi->npins != 0) {
690 if (gpiobus_alloc_ivars(devi) != 0) {
691 device_printf(child, "cannot allocate device ivars\n");
696 case GPIOBUS_IVAR_PINS:
697 ptr = (const uint32_t *)value;
698 for (i = 0; i < devi->npins; i++)
699 devi->pins[i] = ptr[i];
700 if (gpiobus_acquire_child_pins(dev, child) != 0)
710 static struct resource *
711 gpiobus_alloc_resource(device_t bus, device_t child, int type, int *rid,
712 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
714 struct gpiobus_softc *sc;
716 struct resource_list *rl;
717 struct resource_list_entry *rle;
720 if (type != SYS_RES_IRQ)
722 isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
725 rl = BUS_GET_RESOURCE_LIST(bus, child);
728 rle = resource_list_find(rl, type, *rid);
731 if (rle->res != NULL)
732 panic("%s: resource entry is busy", __func__);
737 sc = device_get_softc(bus);
738 rv = rman_reserve_resource(&sc->sc_intr_rman, start, end, count, flags,
742 rman_set_rid(rv, *rid);
743 if ((flags & RF_ACTIVE) != 0 &&
744 bus_activate_resource(child, type, *rid, rv) != 0) {
745 rman_release_resource(rv);
753 gpiobus_release_resource(device_t bus __unused, device_t child, int type,
754 int rid, struct resource *r)
758 if (rman_get_flags(r) & RF_ACTIVE) {
759 error = bus_deactivate_resource(child, type, rid, r);
764 return (rman_release_resource(r));
767 static struct resource_list *
768 gpiobus_get_resource_list(device_t bus __unused, device_t child)
770 struct gpiobus_ivar *ivar;
772 ivar = GPIOBUS_IVAR(child);
778 gpiobus_acquire_bus(device_t busdev, device_t child, int how)
780 struct gpiobus_softc *sc;
782 sc = device_get_softc(busdev);
783 GPIOBUS_ASSERT_UNLOCKED(sc);
785 if (sc->sc_owner != NULL) {
786 if (sc->sc_owner == child)
787 panic("%s: %s still owns the bus.",
788 device_get_nameunit(busdev),
789 device_get_nameunit(child));
790 if (how == GPIOBUS_DONTWAIT) {
792 return (EWOULDBLOCK);
794 while (sc->sc_owner != NULL)
795 mtx_sleep(sc, &sc->sc_mtx, 0, "gpiobuswait", 0);
797 sc->sc_owner = child;
804 gpiobus_release_bus(device_t busdev, device_t child)
806 struct gpiobus_softc *sc;
808 sc = device_get_softc(busdev);
809 GPIOBUS_ASSERT_UNLOCKED(sc);
811 if (sc->sc_owner == NULL)
812 panic("%s: %s releasing unowned bus.",
813 device_get_nameunit(busdev),
814 device_get_nameunit(child));
815 if (sc->sc_owner != child)
816 panic("%s: %s trying to release bus owned by %s",
817 device_get_nameunit(busdev),
818 device_get_nameunit(child),
819 device_get_nameunit(sc->sc_owner));
826 gpiobus_pin_setflags(device_t dev, device_t child, uint32_t pin,
829 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
830 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
833 if (pin >= devi->npins)
835 if (GPIO_PIN_GETCAPS(sc->sc_dev, devi->pins[pin], &caps) != 0)
837 if (gpio_check_flags(caps, flags) != 0)
840 return (GPIO_PIN_SETFLAGS(sc->sc_dev, devi->pins[pin], flags));
844 gpiobus_pin_getflags(device_t dev, device_t child, uint32_t pin,
847 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
848 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
850 if (pin >= devi->npins)
853 return GPIO_PIN_GETFLAGS(sc->sc_dev, devi->pins[pin], flags);
857 gpiobus_pin_getcaps(device_t dev, device_t child, uint32_t pin,
860 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
861 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
863 if (pin >= devi->npins)
866 return GPIO_PIN_GETCAPS(sc->sc_dev, devi->pins[pin], caps);
870 gpiobus_pin_set(device_t dev, device_t child, uint32_t pin,
873 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
874 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
876 if (pin >= devi->npins)
879 return GPIO_PIN_SET(sc->sc_dev, devi->pins[pin], value);
883 gpiobus_pin_get(device_t dev, device_t child, uint32_t pin,
886 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
887 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
889 if (pin >= devi->npins)
892 return GPIO_PIN_GET(sc->sc_dev, devi->pins[pin], value);
896 gpiobus_pin_toggle(device_t dev, device_t child, uint32_t pin)
898 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev);
899 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child);
901 if (pin >= devi->npins)
904 return GPIO_PIN_TOGGLE(sc->sc_dev, devi->pins[pin]);
908 gpiobus_pin_getname(device_t dev, uint32_t pin, char *name)
910 struct gpiobus_softc *sc;
912 sc = GPIOBUS_SOFTC(dev);
913 if (pin > sc->sc_npins)
915 /* Did we have a name for this pin ? */
916 if (sc->sc_pins[pin].name != NULL) {
917 memcpy(name, sc->sc_pins[pin].name, GPIOMAXNAME);
921 /* Return the default pin name. */
922 return (GPIO_PIN_GETNAME(device_get_parent(dev), pin, name));
926 gpiobus_pin_setname(device_t dev, uint32_t pin, const char *name)
928 struct gpiobus_softc *sc;
930 sc = GPIOBUS_SOFTC(dev);
931 if (pin > sc->sc_npins)
935 /* Save the pin name. */
936 if (sc->sc_pins[pin].name == NULL)
937 sc->sc_pins[pin].name = malloc(GPIOMAXNAME, M_DEVBUF,
939 strlcpy(sc->sc_pins[pin].name, name, GPIOMAXNAME);
944 static device_method_t gpiobus_methods[] = {
945 /* Device interface */
946 DEVMETHOD(device_probe, gpiobus_probe),
947 DEVMETHOD(device_attach, gpiobus_attach),
948 DEVMETHOD(device_detach, gpiobus_detach),
949 DEVMETHOD(device_shutdown, bus_generic_shutdown),
950 DEVMETHOD(device_suspend, gpiobus_suspend),
951 DEVMETHOD(device_resume, gpiobus_resume),
954 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
955 DEVMETHOD(bus_config_intr, bus_generic_config_intr),
956 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
957 DEVMETHOD(bus_set_resource, gpiobus_set_resource),
958 DEVMETHOD(bus_alloc_resource, gpiobus_alloc_resource),
959 DEVMETHOD(bus_release_resource, gpiobus_release_resource),
960 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
961 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
962 DEVMETHOD(bus_get_resource_list, gpiobus_get_resource_list),
963 DEVMETHOD(bus_add_child, gpiobus_add_child),
964 DEVMETHOD(bus_probe_nomatch, gpiobus_probe_nomatch),
965 DEVMETHOD(bus_print_child, gpiobus_print_child),
966 DEVMETHOD(bus_child_pnpinfo_str, gpiobus_child_pnpinfo_str),
967 DEVMETHOD(bus_child_location_str, gpiobus_child_location_str),
968 DEVMETHOD(bus_hinted_child, gpiobus_hinted_child),
969 DEVMETHOD(bus_read_ivar, gpiobus_read_ivar),
970 DEVMETHOD(bus_write_ivar, gpiobus_write_ivar),
973 DEVMETHOD(gpiobus_acquire_bus, gpiobus_acquire_bus),
974 DEVMETHOD(gpiobus_release_bus, gpiobus_release_bus),
975 DEVMETHOD(gpiobus_pin_getflags, gpiobus_pin_getflags),
976 DEVMETHOD(gpiobus_pin_getcaps, gpiobus_pin_getcaps),
977 DEVMETHOD(gpiobus_pin_setflags, gpiobus_pin_setflags),
978 DEVMETHOD(gpiobus_pin_get, gpiobus_pin_get),
979 DEVMETHOD(gpiobus_pin_set, gpiobus_pin_set),
980 DEVMETHOD(gpiobus_pin_toggle, gpiobus_pin_toggle),
981 DEVMETHOD(gpiobus_pin_getname, gpiobus_pin_getname),
982 DEVMETHOD(gpiobus_pin_setname, gpiobus_pin_setname),
987 driver_t gpiobus_driver = {
990 sizeof(struct gpiobus_softc)
993 devclass_t gpiobus_devclass;
995 EARLY_DRIVER_MODULE(gpiobus, gpio, gpiobus_driver, gpiobus_devclass, 0, 0,
996 BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
997 MODULE_VERSION(gpiobus, 1);