dev/hid/hidbus.c

178 	struct hidbus_ivars *tlc;
185 	tlc = malloc(sizeof(struct hidbus_ivars), M_DEVBUF, M_WAITOK | M_ZERO);
186 	tlc->mtx = &sc->mtx;
187 	device_set_ivars(child, tlc);
189 	CK_STAILQ_INSERT_TAIL(&sc->tlcs, tlc, link);
384 	struct hidbus_ivars *tlc = device_get_ivars(child);
386 	KASSERT(tlc->refcnt == 0, ("Child device is running"));
387 	tlc->mtx = &sc->mtx;
388 	tlc->intr_handler = NULL;
389 	tlc->flags &= ~HIDBUS_FLAG_CAN_POLL;
393  * Epoch callback indicating tlc is safe to destroy
398 	struct hidbus_ivars *tlc;
400 	tlc = __containerof(ctx, struct hidbus_ivars, epoch_ctx);
401 	free(tlc, M_DEVBUF);
408 	struct hidbus_ivars *tlc = device_get_ivars(child);
411 	KASSERT(tlc->refcnt == 0, ("Child device is running"));
412 	CK_STAILQ_REMOVE(&sc->tlcs, tlc, hidbus_ivars, link);
414 	epoch_call(INPUT_EPOCH, hidbus_ivar_dtor, &tlc->epoch_ctx);
421 	struct hidbus_ivars *tlc = device_get_ivars(child);
425 		*result = tlc->index;
428 		*result = tlc->usage;
431 		*result = tlc->flags;
434 		*result = tlc->driver_info;
437 		*result = (uintptr_t)(tlc->mtx == &sc->mtx ? NULL : tlc->mtx);
449 	struct hidbus_ivars *tlc = device_get_ivars(child);
453 		tlc->index = value;
456 		tlc->usage = value;
459 		tlc->flags = value;
465 		tlc->driver_info = value;
468 		tlc->mtx = (struct mtx *)value == NULL ?
482 	struct hidbus_ivars *tlc = device_get_ivars(child);
484 	snprintf(buf, buflen, "index=%hhu", tlc->index);
493 	struct hidbus_ivars *tlc = device_get_ivars(child);
498 	    HID_GET_USAGE_PAGE(tlc->usage), HID_GET_USAGE(tlc->usage),
511 	struct hidbus_ivars *tlc = device_get_ivars(child);
516 	    (sc->nauto > 1 || (tlc->flags & HIDBUS_FLAG_AUTOCHILD) == 0)) {
551 	struct hidbus_ivars *tlc;
563 	CK_STAILQ_FOREACH(tlc, &sc->tlcs, link) {
564 		if (tlc->refcnt == 0 || tlc->intr_handler == NULL)
567 			if ((tlc->flags & HIDBUS_FLAG_CAN_POLL) != 0)
568 				tlc->intr_handler(tlc->intr_ctx, buf, len);
570 			mtx_lock(tlc->mtx);
571 			tlc->intr_handler(tlc->intr_ctx, buf, len);
572 			mtx_unlock(tlc->mtx);
582 	struct hidbus_ivars *tlc = device_get_ivars(child);
584 	tlc->intr_handler = handler;
585 	tlc->intr_ctx = context;
594 	struct hidbus_ivars *tlc;
600 	CK_STAILQ_FOREACH(tlc, &sc->tlcs, link) {
601 		refcnt += tlc->refcnt;
602 		if (tlc == ivar) {
603 			mtx_lock(tlc->mtx);
604 			++tlc->refcnt;
605 			mtx_unlock(tlc->mtx);
620 	struct hidbus_ivars *tlc;
626 	CK_STAILQ_FOREACH(tlc, &sc->tlcs, link) {
627 		if (tlc == ivar) {
628 			mtx_lock(tlc->mtx);
629 			MPASS(tlc->refcnt != 0);
630 			--tlc->refcnt;
631 			mtx_unlock(tlc->mtx);
633 		refcnt += tlc->refcnt;