3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
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
27 #include <sys/stdint.h>
28 #include <sys/param.h>
29 #include <sys/queue.h>
30 #include <sys/types.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
34 #include <sys/module.h>
36 #include <sys/mutex.h>
37 #include <sys/condvar.h>
38 #include <sys/sysctl.h>
39 #include <sys/unistd.h>
40 #include <sys/callout.h>
41 #include <sys/malloc.h>
44 #include <sys/fcntl.h>
45 #include <sys/devfs.h>
47 #include <bus/u4b/usb.h>
48 #include <bus/u4b/usbdi.h>
49 #include <bus/u4b/usbdi_util.h>
50 #include <bus/u4b/usb_ioctl.h>
58 #define USB_DEBUG_VAR usb_debug
60 #include <bus/u4b/usb_core.h>
61 #include <bus/u4b/usb_debug.h>
62 #include <bus/u4b/usb_process.h>
63 #include <bus/u4b/usb_device.h>
64 #include <bus/u4b/usb_busdma.h>
65 #include <bus/u4b/usb_transfer.h>
66 #include <bus/u4b/usb_request.h>
67 #include <bus/u4b/usb_dynamic.h>
68 #include <bus/u4b/usb_hub.h>
69 #include <bus/u4b/usb_util.h>
70 #include <bus/u4b/usb_msctest.h>
72 #include <bus/u4b/usb_dev.h>
73 #include <bus/u4b/usb_generic.h>
76 #include <bus/u4b/quirk/usb_quirk.h>
78 #include <bus/u4b/usb_controller.h>
79 #include <bus/u4b/usb_bus.h>
81 /* function prototypes */
83 static void usb_init_endpoint(struct usb_device *, uint8_t,
84 struct usb_endpoint_descriptor *,
85 struct usb_endpoint_ss_comp_descriptor *,
86 struct usb_endpoint *);
87 static void usb_unconfigure(struct usb_device *, uint8_t);
88 static void usb_detach_device_sub(struct usb_device *, device_t *,
90 static uint8_t usb_probe_and_attach_sub(struct usb_device *,
91 struct usb_attach_arg *);
92 static void usb_init_attach_arg(struct usb_device *,
93 struct usb_attach_arg *);
94 static void usb_suspend_resume_sub(struct usb_device *, device_t,
96 static void usbd_clear_stall_proc(struct usb_proc_msg *_pm);
97 static usb_error_t usb_config_parse(struct usb_device *, uint8_t, uint8_t);
98 static void usbd_set_device_strings(struct usb_device *);
100 static void usb_notify_addq(const char *type, struct usb_device *);
103 static void usb_fifo_free_wrap(struct usb_device *, uint8_t, uint8_t);
104 static void usb_cdev_create(struct usb_device *);
105 static void usb_cdev_free(struct usb_device *);
108 /* This variable is global to allow easy access to it: */
110 int usb_template = 0;
112 TUNABLE_INT("hw.usb.usb_template", &usb_template);
113 SYSCTL_INT(_hw_usb, OID_AUTO, template, CTLFLAG_RW,
114 &usb_template, 0, "Selected USB device side template");
116 /* English is default language */
118 static int usb_lang_id = 0x0009;
119 static int usb_lang_mask = 0x00FF;
121 TUNABLE_INT("hw.usb.usb_lang_id", &usb_lang_id);
122 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_id, CTLFLAG_RW,
123 &usb_lang_id, 0, "Preferred USB language ID");
125 TUNABLE_INT("hw.usb.usb_lang_mask", &usb_lang_mask);
126 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_mask, CTLFLAG_RW,
127 &usb_lang_mask, 0, "Preferred USB language mask");
129 static const char* statestr[USB_STATE_MAX] = {
130 [USB_STATE_DETACHED] = "DETACHED",
131 [USB_STATE_ATTACHED] = "ATTACHED",
132 [USB_STATE_POWERED] = "POWERED",
133 [USB_STATE_ADDRESSED] = "ADDRESSED",
134 [USB_STATE_CONFIGURED] = "CONFIGURED",
138 usb_statestr(enum usb_dev_state state)
140 return ((state < USB_STATE_MAX) ? statestr[state] : "UNKNOWN");
144 usb_get_manufacturer(struct usb_device *udev)
146 return (udev->manufacturer ? udev->manufacturer : "Unknown");
150 usb_get_product(struct usb_device *udev)
152 return (udev->product ? udev->product : "");
156 usb_get_serial(struct usb_device *udev)
158 return (udev->serial ? udev->serial : "");
161 /*------------------------------------------------------------------------*
162 * usbd_get_ep_by_addr
164 * This function searches for an USB ep by endpoint address and
170 *------------------------------------------------------------------------*/
171 struct usb_endpoint *
172 usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val)
174 struct usb_endpoint *ep = udev->endpoints;
175 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
177 EA_MASK = (UE_DIR_IN | UE_DIR_OUT | UE_ADDR),
181 * According to the USB specification not all bits are used
182 * for the endpoint address. Keep defined bits only:
187 * Iterate accross all the USB endpoints searching for a match
188 * based on the endpoint address:
190 for (; ep != ep_end; ep++) {
192 if (ep->edesc == NULL) {
195 /* do the mask and check the value */
196 if ((ep->edesc->bEndpointAddress & EA_MASK) == ea_val) {
202 * The default endpoint is always present and is checked separately:
204 if ((udev->ctrl_ep.edesc) &&
205 ((udev->ctrl_ep.edesc->bEndpointAddress & EA_MASK) == ea_val)) {
215 /*------------------------------------------------------------------------*
218 * This function searches for an USB endpoint based on the information
219 * given by the passed "struct usb_config" pointer.
223 * Else: Pointer to "struct usb_endpoint".
224 *------------------------------------------------------------------------*/
225 struct usb_endpoint *
226 usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
227 const struct usb_config *setup)
229 struct usb_endpoint *ep = udev->endpoints;
230 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
231 uint8_t index = setup->ep_index;
237 DPRINTFN(10, "udev=%p iface_index=%d address=0x%x "
238 "type=0x%x dir=0x%x index=%d\n",
239 udev, iface_index, setup->endpoint,
240 setup->type, setup->direction, setup->ep_index);
244 if (setup->usb_mode != USB_MODE_DUAL &&
245 udev->flags.usb_mode != setup->usb_mode) {
246 /* wrong mode - no endpoint */
250 /* setup expected endpoint direction mask and value */
252 if (setup->direction == UE_DIR_RX) {
253 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
254 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
255 UE_DIR_OUT : UE_DIR_IN;
256 } else if (setup->direction == UE_DIR_TX) {
257 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
258 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
259 UE_DIR_IN : UE_DIR_OUT;
260 } else if (setup->direction == UE_DIR_ANY) {
261 /* match any endpoint direction */
265 /* match the given endpoint direction */
266 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
267 ea_val = (setup->direction & (UE_DIR_IN | UE_DIR_OUT));
270 /* setup expected endpoint address */
272 if (setup->endpoint == UE_ADDR_ANY) {
273 /* match any endpoint address */
275 /* match the given endpoint address */
277 ea_val |= (setup->endpoint & UE_ADDR);
280 /* setup expected endpoint type */
282 if (setup->type == UE_BULK_INTR) {
283 /* this will match BULK and INTERRUPT endpoints */
286 } else if (setup->type == UE_TYPE_ANY) {
287 /* match any endpoint type */
291 /* match the given endpoint type */
292 type_mask = UE_XFERTYPE;
293 type_val = (setup->type & UE_XFERTYPE);
297 * Iterate accross all the USB endpoints searching for a match
298 * based on the endpoint address. Note that we are searching
299 * the endpoints from the beginning of the "udev->endpoints" array.
301 for (; ep != ep_end; ep++) {
303 if ((ep->edesc == NULL) ||
304 (ep->iface_index != iface_index)) {
307 /* do the masks and check the values */
309 if (((ep->edesc->bEndpointAddress & ea_mask) == ea_val) &&
310 ((ep->edesc->bmAttributes & type_mask) == type_val)) {
318 * Match against default endpoint last, so that "any endpoint", "any
319 * address" and "any direction" returns the first endpoint of the
320 * interface. "iface_index" and "direction" is ignored:
322 if ((udev->ctrl_ep.edesc) &&
323 ((udev->ctrl_ep.edesc->bEndpointAddress & ea_mask) == ea_val) &&
324 ((udev->ctrl_ep.edesc->bmAttributes & type_mask) == type_val) &&
335 /*------------------------------------------------------------------------*
336 * usbd_interface_count
338 * This function stores the number of USB interfaces excluding
339 * alternate settings, which the USB config descriptor reports into
340 * the unsigned 8-bit integer pointed to by "count".
345 *------------------------------------------------------------------------*/
347 usbd_interface_count(struct usb_device *udev, uint8_t *count)
349 if (udev->cdesc == NULL) {
351 return (USB_ERR_NOT_CONFIGURED);
353 *count = udev->ifaces_max;
354 return (USB_ERR_NORMAL_COMPLETION);
358 /*------------------------------------------------------------------------*
361 * This function will initialise the USB endpoint structure pointed to by
362 * the "endpoint" argument. The structure pointed to by "endpoint" must be
363 * zeroed before calling this function.
364 *------------------------------------------------------------------------*/
366 usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
367 struct usb_endpoint_descriptor *edesc,
368 struct usb_endpoint_ss_comp_descriptor *ecomp,
369 struct usb_endpoint *ep)
371 struct usb_bus_methods *methods;
373 methods = udev->bus->methods;
375 (methods->endpoint_init) (udev, edesc, ep);
377 /* initialise USB endpoint structure */
380 ep->iface_index = iface_index;
381 TAILQ_INIT(&ep->endpoint_q.head);
382 ep->endpoint_q.command = &usbd_pipe_start;
384 /* the pipe is not supported by the hardware */
385 if (ep->methods == NULL)
388 /* clear stall, if any */
389 if (methods->clear_stall != NULL) {
390 USB_BUS_LOCK(udev->bus);
391 (methods->clear_stall) (udev, ep);
392 USB_BUS_UNLOCK(udev->bus);
396 /*-----------------------------------------------------------------------*
397 * usb_endpoint_foreach
399 * This function will iterate all the USB endpoints except the control
400 * endpoint. This function is NULL safe.
403 * NULL: End of USB endpoints
404 * Else: Pointer to next USB endpoint
405 *------------------------------------------------------------------------*/
406 struct usb_endpoint *
407 usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
409 struct usb_endpoint *ep_end;
415 ep_end = udev->endpoints + udev->endpoints_max;
417 /* get next endpoint */
419 ep = udev->endpoints;
423 /* find next allocated ep */
424 while (ep != ep_end) {
425 if (ep->edesc != NULL)
432 /*------------------------------------------------------------------------*
435 * This function will free all USB interfaces and USB endpoints belonging
438 * Flag values, see "USB_UNCFG_FLAG_XXX".
439 *------------------------------------------------------------------------*/
441 usb_unconfigure(struct usb_device *udev, uint8_t flag)
445 /* automatic locking */
446 if (usbd_enum_is_locked(udev)) {
450 usbd_enum_lock(udev);
453 /* detach all interface drivers */
454 usb_detach_device(udev, USB_IFACE_INDEX_ANY, flag);
457 /* free all FIFOs except control endpoint FIFOs */
458 usb_fifo_free_wrap(udev, USB_IFACE_INDEX_ANY, flag);
461 * Free all cdev's, if any.
466 #if USB_HAVE_COMPAT_LINUX
467 /* free Linux compat device, if any */
468 if (udev->linux_endpoint_start) {
469 usb_linux_free_device(udev);
470 udev->linux_endpoint_start = NULL;
474 usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_FREE);
476 /* free "cdesc" after "ifaces" and "endpoints", if any */
477 if (udev->cdesc != NULL) {
478 if (udev->flags.usb_mode != USB_MODE_DEVICE)
479 kfree(udev->cdesc, M_USB);
482 /* set unconfigured state */
483 udev->curr_config_no = USB_UNCONFIG_NO;
484 udev->curr_config_index = USB_UNCONFIG_INDEX;
487 usbd_enum_unlock(udev);
490 /*------------------------------------------------------------------------*
491 * usbd_set_config_index
493 * This function selects configuration by index, independent of the
494 * actual configuration number. This function should not be used by
500 *------------------------------------------------------------------------*/
502 usbd_set_config_index(struct usb_device *udev, uint8_t index)
504 struct usb_status ds;
505 struct usb_config_descriptor *cdp;
512 DPRINTFN(6, "udev=%p index=%d\n", udev, index);
514 /* automatic locking */
515 if (usbd_enum_is_locked(udev)) {
519 usbd_enum_lock(udev);
522 usb_unconfigure(udev, 0);
524 if (index == USB_UNCONFIG_INDEX) {
526 * Leave unallocated when unconfiguring the
527 * device. "usb_unconfigure()" will also reset
528 * the current config number and index.
530 err = usbd_req_set_config(udev, NULL, USB_UNCONFIG_NO);
531 if (udev->state == USB_STATE_CONFIGURED)
532 usb_set_device_state(udev, USB_STATE_ADDRESSED);
535 /* get the full config descriptor */
536 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
537 /* save some memory */
538 err = usbd_req_get_descriptor_ptr(udev, &cdp,
539 (UDESC_CONFIG << 8) | index);
542 err = usbd_req_get_config_desc_full(udev,
543 NULL, &cdp, M_USB, index);
548 /* set the new config descriptor */
552 /* Figure out if the device is self or bus powered. */
554 if ((!udev->flags.uq_bus_powered) &&
555 (cdp->bmAttributes & UC_SELF_POWERED) &&
556 (udev->flags.usb_mode == USB_MODE_HOST)) {
557 /* May be self powered. */
558 if (cdp->bmAttributes & UC_BUS_POWERED) {
559 /* Must ask device. */
560 err = usbd_req_get_device_status(udev, NULL, &ds);
562 DPRINTFN(0, "could not read "
563 "device status: %s\n",
565 } else if (UGETW(ds.wStatus) & UDS_SELF_POWERED) {
568 DPRINTF("status=0x%04x \n",
573 DPRINTF("udev=%p cdesc=%p (addr %d) cno=%d attr=0x%02x, "
574 "selfpowered=%d, power=%d\n",
576 udev->address, cdp->bConfigurationValue, cdp->bmAttributes,
577 selfpowered, cdp->bMaxPower * 2);
579 /* Check if we have enough power. */
580 power = cdp->bMaxPower * 2;
582 if (udev->parent_hub) {
583 max_power = udev->parent_hub->hub->portpower;
585 max_power = USB_MAX_POWER;
588 if (power > max_power) {
589 DPRINTFN(0, "power exceeded %d > %d\n", power, max_power);
590 err = USB_ERR_NO_POWER;
593 /* Only update "self_powered" in USB Host Mode */
594 if (udev->flags.usb_mode == USB_MODE_HOST) {
595 udev->flags.self_powered = selfpowered;
598 udev->curr_config_no = cdp->bConfigurationValue;
599 udev->curr_config_index = index;
600 usb_set_device_state(udev, USB_STATE_CONFIGURED);
602 /* Set the actual configuration value. */
603 err = usbd_req_set_config(udev, NULL, cdp->bConfigurationValue);
608 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_ALLOC);
613 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_INIT);
619 /* create device nodes for each endpoint */
620 usb_cdev_create(udev);
624 DPRINTF("error=%s\n", usbd_errstr(err));
626 usb_unconfigure(udev, 0);
629 usbd_enum_unlock(udev);
633 /*------------------------------------------------------------------------*
636 * This function will allocate and free USB interfaces and USB endpoints,
637 * parse the USB configuration structure and initialise the USB endpoints
638 * and interfaces. If "iface_index" is not equal to
639 * "USB_IFACE_INDEX_ANY" then the "cmd" parameter is the
640 * alternate_setting to be selected for the given interface. Else the
641 * "cmd" parameter is defined by "USB_CFG_XXX". "iface_index" can be
642 * "USB_IFACE_INDEX_ANY" or a valid USB interface index. This function
643 * is typically called when setting the configuration or when setting
644 * an alternate interface.
649 *------------------------------------------------------------------------*/
651 usb_config_parse(struct usb_device *udev, uint8_t iface_index, uint8_t cmd)
653 struct usb_idesc_parse_state ips;
654 struct usb_interface_descriptor *id;
655 struct usb_endpoint_descriptor *ed;
656 struct usb_interface *iface;
657 struct usb_endpoint *ep;
665 if (iface_index != USB_IFACE_INDEX_ANY) {
666 /* parameter overload */
676 DPRINTFN(5, "iface_index=%d cmd=%d\n",
679 if (cmd == USB_CFG_FREE)
682 if (cmd == USB_CFG_INIT) {
683 KKASSERT(lockstatus(&udev->enum_lock, curthread) == LK_EXCLUSIVE);
684 /* check for in-use endpoints */
686 ep = udev->endpoints;
687 ep_max = udev->endpoints_max;
689 /* look for matching endpoints */
690 if ((iface_index == USB_IFACE_INDEX_ANY) ||
691 (iface_index == ep->iface_index)) {
692 if (ep->refcount_alloc != 0) {
694 * This typically indicates a
695 * more serious error.
697 err = USB_ERR_IN_USE;
700 memset(ep, 0, sizeof(*ep));
701 /* make sure we don't zero the endpoint again */
702 ep->iface_index = USB_IFACE_INDEX_ANY;
712 memset(&ips, 0, sizeof(ips));
717 while ((id = usb_idesc_foreach(udev->cdesc, &ips))) {
719 /* check for interface overflow */
720 if (ips.iface_index == USB_IFACE_MAX)
723 iface = udev->ifaces + ips.iface_index;
725 /* check for specific interface match */
727 if (cmd == USB_CFG_INIT) {
728 if ((iface_index != USB_IFACE_INDEX_ANY) &&
729 (iface_index != ips.iface_index)) {
730 /* wrong interface */
732 } else if (alt_index != ips.iface_index_alt) {
733 /* wrong alternate setting */
736 /* initialise interface */
742 /* check for new interface */
743 if (ips.iface_index_alt == 0) {
744 /* update current number of endpoints */
749 /* setup the USB interface structure */
751 /* default setting */
752 iface->parent_iface_index = USB_IFACE_INDEX_ANY;
753 /* set alternate index */
754 iface->alt_index = alt_index;
757 DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
759 ed = (struct usb_endpoint_descriptor *)id;
763 /* iterate all the endpoint descriptors */
764 while ((ed = usb_edesc_foreach(udev->cdesc, ed))) {
766 if (temp == USB_EP_MAX)
769 ep = udev->endpoints + temp;
774 ecomp = usb_ed_comp_foreach(udev->cdesc, (void *)ed);
776 DPRINTFN(5, "Found endpoint companion descriptor\n");
778 usb_init_endpoint(udev,
779 ips.iface_index, ed, ecomp, ep);
784 /* find maximum number of endpoints */
789 id = (struct usb_interface_descriptor *)ed;
793 /* NOTE: It is valid to have no interfaces and no endpoints! */
795 if (cmd == USB_CFG_ALLOC) {
796 udev->ifaces_max = ips.iface_index;
798 if (udev->ifaces_max != 0) {
799 udev->ifaces = kmalloc(sizeof(*iface) * udev->ifaces_max,
800 M_USB, M_WAITOK | M_ZERO);
801 if (udev->ifaces == NULL) {
807 udev->endpoints = kmalloc(sizeof(*ep) * ep_max,
808 M_USB, M_WAITOK | M_ZERO);
809 if (udev->endpoints == NULL) {
814 udev->endpoints = NULL;
816 USB_BUS_LOCK(udev->bus);
817 udev->endpoints_max = ep_max;
818 /* reset any ongoing clear-stall */
819 udev->ep_curr = NULL;
820 USB_BUS_UNLOCK(udev->bus);
825 if (cmd == USB_CFG_ALLOC) {
827 USB_BUS_LOCK(udev->bus);
828 udev->endpoints_max = 0;
829 /* reset any ongoing clear-stall */
830 udev->ep_curr = NULL;
831 USB_BUS_UNLOCK(udev->bus);
834 if (udev->ifaces != NULL)
835 kfree(udev->ifaces, M_USB);
836 if (udev->endpoints != NULL)
837 kfree(udev->endpoints, M_USB);
840 udev->endpoints = NULL;
841 udev->ifaces_max = 0;
847 /*------------------------------------------------------------------------*
848 * usbd_set_alt_interface_index
850 * This function will select an alternate interface index for the
851 * given interface index. The interface should not be in use when this
852 * function is called. That means there should not be any open USB
853 * transfers. Else an error is returned. If the alternate setting is
854 * already set this function will simply return success. This function
855 * is called in Host mode and Device mode!
860 *------------------------------------------------------------------------*/
862 usbd_set_alt_interface_index(struct usb_device *udev,
863 uint8_t iface_index, uint8_t alt_index)
865 struct usb_interface *iface = usbd_get_iface(udev, iface_index);
869 /* automatic locking */
870 if (usbd_enum_is_locked(udev)) {
874 usbd_enum_lock(udev);
880 if (iface->alt_index == alt_index) {
882 * Optimise away duplicate setting of
883 * alternate setting in USB Host Mode!
890 * Free all generic FIFOs for this interface, except control
893 usb_fifo_free_wrap(udev, iface_index, 0);
896 err = usb_config_parse(udev, iface_index, alt_index);
900 if (iface->alt_index != alt_index) {
901 /* the alternate setting does not exist */
906 err = usbd_req_set_alt_interface_no(udev, NULL, iface_index,
907 iface->idesc->bAlternateSetting);
911 usbd_enum_unlock(udev);
916 /*------------------------------------------------------------------------*
917 * usbd_set_endpoint_stall
919 * This function is used to make a BULK or INTERRUPT endpoint send
920 * STALL tokens in USB device mode.
925 *------------------------------------------------------------------------*/
927 usbd_set_endpoint_stall(struct usb_device *udev, struct usb_endpoint *ep,
930 struct usb_xfer *xfer;
936 DPRINTF("Cannot find endpoint\n");
938 * Pretend that the clear or set stall request is
939 * successful else some USB host stacks can do
940 * strange things, especially when a control endpoint
945 et = (ep->edesc->bmAttributes & UE_XFERTYPE);
947 if ((et != UE_BULK) &&
948 (et != UE_INTERRUPT)) {
950 * Should not stall control
951 * nor isochronous endpoints.
953 DPRINTF("Invalid endpoint\n");
956 USB_BUS_LOCK(udev->bus);
958 /* store current stall state */
959 was_stalled = ep->is_stalled;
961 /* check for no change */
962 if (was_stalled && do_stall) {
963 /* if the endpoint is already stalled do nothing */
964 USB_BUS_UNLOCK(udev->bus);
965 DPRINTF("No change\n");
968 /* set stalled state */
971 if (do_stall || (!was_stalled)) {
973 /* lookup the current USB transfer, if any */
974 xfer = ep->endpoint_q.curr;
980 * If "xfer" is non-NULL the "set_stall" method will
981 * complete the USB transfer like in case of a timeout
982 * setting the error code "USB_ERR_STALLED".
984 (udev->bus->methods->set_stall) (udev, xfer, ep, &do_stall);
987 ep->toggle_next = 0; /* reset data toggle */
988 ep->is_stalled = 0; /* clear stalled state */
990 (udev->bus->methods->clear_stall) (udev, ep);
992 /* start up the current or next transfer, if any */
993 usb_command_wrapper(&ep->endpoint_q, ep->endpoint_q.curr);
995 USB_BUS_UNLOCK(udev->bus);
999 /*------------------------------------------------------------------------*
1000 * usb_reset_iface_endpoints - used in USB device side mode
1001 *------------------------------------------------------------------------*/
1003 usb_reset_iface_endpoints(struct usb_device *udev, uint8_t iface_index)
1005 struct usb_endpoint *ep;
1006 struct usb_endpoint *ep_end;
1008 ep = udev->endpoints;
1009 ep_end = udev->endpoints + udev->endpoints_max;
1011 for (; ep != ep_end; ep++) {
1013 if ((ep->edesc == NULL) ||
1014 (ep->iface_index != iface_index)) {
1017 /* simulate a clear stall from the peer */
1018 usbd_set_endpoint_stall(udev, ep, 0);
1023 /*------------------------------------------------------------------------*
1024 * usb_detach_device_sub
1026 * This function will try to detach an USB device. If it fails a panic
1029 * Flag values, see "USB_UNCFG_FLAG_XXX".
1030 *------------------------------------------------------------------------*/
1032 usb_detach_device_sub(struct usb_device *udev, device_t *ppdev,
1033 char **ppnpinfo, uint8_t flag)
1042 * NOTE: It is important to clear "*ppdev" before deleting
1043 * the child due to some device methods being called late
1044 * during the delete process !
1048 device_printf(dev, "at %s, port %d, addr %d "
1050 device_get_nameunit(udev->parent_dev),
1051 udev->port_no, udev->address);
1053 if (device_is_attached(dev)) {
1054 if (udev->flags.peer_suspended) {
1055 err = DEVICE_RESUME(dev);
1057 device_printf(dev, "Resume failed\n");
1060 if (device_detach(dev)) {
1064 if (device_delete_child(udev->parent_dev, dev)) {
1069 pnpinfo = *ppnpinfo;
1070 if (pnpinfo != NULL) {
1072 kfree(pnpinfo, M_USBDEV);
1077 /* Detach is not allowed to fail in the USB world */
1078 panic("usb_detach_device_sub: A USB driver would not detach\n");
1081 /*------------------------------------------------------------------------*
1084 * The following function will detach the matching interfaces.
1085 * This function is NULL safe.
1087 * Flag values, see "USB_UNCFG_FLAG_XXX".
1088 *------------------------------------------------------------------------*/
1090 usb_detach_device(struct usb_device *udev, uint8_t iface_index,
1093 struct usb_interface *iface;
1100 DPRINTFN(4, "udev=%p\n", udev);
1103 * sx_assert(&udev->enum_sx, SA_LOCKED);
1107 * First detach the child to give the child's detach routine a
1108 * chance to detach the sub-devices in the correct order.
1109 * Then delete the child using "device_delete_child()" which
1110 * will detach all sub-devices from the bottom and upwards!
1112 if (iface_index != USB_IFACE_INDEX_ANY) {
1114 iface_index = i + 1;
1117 iface_index = USB_IFACE_MAX;
1122 for (; i != iface_index; i++) {
1124 iface = usbd_get_iface(udev, i);
1125 if (iface == NULL) {
1126 /* looks like the end of the USB interfaces */
1129 usb_detach_device_sub(udev, &iface->subdev,
1130 &iface->pnpinfo, flag);
1134 /*------------------------------------------------------------------------*
1135 * usb_probe_and_attach_sub
1140 *------------------------------------------------------------------------*/
1142 usb_probe_and_attach_sub(struct usb_device *udev,
1143 struct usb_attach_arg *uaa)
1145 struct usb_interface *iface;
1150 if (iface->parent_iface_index != USB_IFACE_INDEX_ANY) {
1151 /* leave interface alone */
1154 dev = iface->subdev;
1157 /* clean up after module unload */
1159 if (device_is_attached(dev)) {
1160 /* already a device there */
1163 /* clear "iface->subdev" as early as possible */
1165 iface->subdev = NULL;
1167 if (device_delete_child(udev->parent_dev, dev)) {
1170 * Panic here, else one can get a double call
1171 * to device_detach(). USB devices should
1172 * never fail on detach!
1174 panic("device_delete_child() failed\n");
1177 if (uaa->temp_dev == NULL) {
1179 /* create a new child */
1180 uaa->temp_dev = device_add_child(udev->parent_dev, NULL, -1);
1181 if (uaa->temp_dev == NULL) {
1182 device_printf(udev->parent_dev,
1183 "Device creation failed\n");
1184 return (1); /* failure */
1186 device_set_ivars(uaa->temp_dev, uaa);
1187 device_quiet(uaa->temp_dev);
1190 * Set "subdev" before probe and attach so that "devd" gets
1191 * the information it needs.
1193 iface->subdev = uaa->temp_dev;
1195 if (device_probe_and_attach(iface->subdev) == 0) {
1197 * The USB attach arguments are only available during probe
1200 uaa->temp_dev = NULL;
1201 device_set_ivars(iface->subdev, NULL);
1203 if (udev->flags.peer_suspended) {
1204 err = DEVICE_SUSPEND(iface->subdev);
1206 device_printf(iface->subdev, "Suspend failed\n");
1208 return (0); /* success */
1210 /* No USB driver found */
1211 iface->subdev = NULL;
1213 return (1); /* failure */
1216 /*------------------------------------------------------------------------*
1217 * usbd_set_parent_iface
1219 * Using this function will lock the alternate interface setting on an
1220 * interface. It is typically used for multi interface drivers. In USB
1221 * device side mode it is assumed that the alternate interfaces all
1222 * have the same endpoint descriptors. The default parent index value
1223 * is "USB_IFACE_INDEX_ANY". Then the alternate setting value is not
1225 *------------------------------------------------------------------------*/
1227 usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
1228 uint8_t parent_index)
1230 struct usb_interface *iface;
1232 iface = usbd_get_iface(udev, iface_index);
1234 iface->parent_iface_index = parent_index;
1239 usb_init_attach_arg(struct usb_device *udev,
1240 struct usb_attach_arg *uaa)
1242 memset(uaa, 0, sizeof(*uaa));
1245 uaa->usb_mode = udev->flags.usb_mode;
1246 uaa->port = udev->port_no;
1247 uaa->dev_state = UAA_DEV_READY;
1249 uaa->info.idVendor = UGETW(udev->ddesc.idVendor);
1250 uaa->info.idProduct = UGETW(udev->ddesc.idProduct);
1251 uaa->info.bcdDevice = UGETW(udev->ddesc.bcdDevice);
1252 uaa->info.bDeviceClass = udev->ddesc.bDeviceClass;
1253 uaa->info.bDeviceSubClass = udev->ddesc.bDeviceSubClass;
1254 uaa->info.bDeviceProtocol = udev->ddesc.bDeviceProtocol;
1255 uaa->info.bConfigIndex = udev->curr_config_index;
1256 uaa->info.bConfigNum = udev->curr_config_no;
1259 /*------------------------------------------------------------------------*
1260 * usb_probe_and_attach
1262 * This function is called from "uhub_explore_sub()",
1263 * "usb_handle_set_config()" and "usb_handle_request()".
1267 * Else: A control transfer failed
1268 *------------------------------------------------------------------------*/
1270 usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index)
1272 struct usb_attach_arg uaa;
1273 struct usb_interface *iface;
1279 DPRINTF("udev == NULL\n");
1280 return (USB_ERR_INVAL);
1282 /* automatic locking */
1283 if (usbd_enum_is_locked(udev)) {
1287 usbd_enum_lock(udev);
1290 if (udev->curr_config_index == USB_UNCONFIG_INDEX) {
1291 /* do nothing - no configuration has been set */
1294 /* setup USB attach arguments */
1296 usb_init_attach_arg(udev, &uaa);
1299 * If the whole USB device is targeted, invoke the USB event
1302 if (iface_index == USB_IFACE_INDEX_ANY) {
1304 EVENTHANDLER_INVOKE(usb_dev_configured, udev, &uaa);
1306 if (uaa.dev_state != UAA_DEV_READY) {
1307 /* leave device unconfigured */
1308 usb_unconfigure(udev, 0);
1313 /* Check if only one interface should be probed: */
1314 if (iface_index != USB_IFACE_INDEX_ANY) {
1322 /* Do the probe and attach */
1323 for (; i != j; i++) {
1325 iface = usbd_get_iface(udev, i);
1326 if (iface == NULL) {
1328 * Looks like the end of the USB
1331 DPRINTFN(2, "end of interfaces "
1335 if (iface->idesc == NULL) {
1336 /* no interface descriptor */
1341 uaa.info.bInterfaceClass =
1342 iface->idesc->bInterfaceClass;
1343 uaa.info.bInterfaceSubClass =
1344 iface->idesc->bInterfaceSubClass;
1345 uaa.info.bInterfaceProtocol =
1346 iface->idesc->bInterfaceProtocol;
1347 uaa.info.bIfaceIndex = i;
1348 uaa.info.bIfaceNum =
1349 iface->idesc->bInterfaceNumber;
1350 uaa.driver_info = 0; /* reset driver_info */
1352 DPRINTFN(2, "iclass=%u/%u/%u iindex=%u/%u\n",
1353 uaa.info.bInterfaceClass,
1354 uaa.info.bInterfaceSubClass,
1355 uaa.info.bInterfaceProtocol,
1356 uaa.info.bIfaceIndex,
1357 uaa.info.bIfaceNum);
1359 usb_probe_and_attach_sub(udev, &uaa);
1362 * Remove the leftover child, if any, to enforce that
1363 * a new nomatch devd event is generated for the next
1364 * interface if no driver is found:
1366 if (uaa.temp_dev == NULL)
1368 if (device_delete_child(udev->parent_dev, uaa.temp_dev))
1369 DPRINTFN(0, "device delete child failed\n");
1370 uaa.temp_dev = NULL;
1374 usbd_enum_unlock(udev);
1379 /*------------------------------------------------------------------------*
1380 * usb_suspend_resume_sub
1382 * This function is called when the suspend or resume methods should
1383 * be executed on an USB device.
1384 *------------------------------------------------------------------------*/
1386 usb_suspend_resume_sub(struct usb_device *udev, device_t dev, uint8_t do_suspend)
1393 if (!device_is_attached(dev)) {
1397 err = DEVICE_SUSPEND(dev);
1399 err = DEVICE_RESUME(dev);
1402 device_printf(dev, "%s failed\n",
1403 do_suspend ? "Suspend" : "Resume");
1407 /*------------------------------------------------------------------------*
1408 * usb_suspend_resume
1410 * The following function will suspend or resume the USB device.
1415 *------------------------------------------------------------------------*/
1417 usb_suspend_resume(struct usb_device *udev, uint8_t do_suspend)
1419 struct usb_interface *iface;
1426 DPRINTFN(4, "udev=%p do_suspend=%d\n", udev, do_suspend);
1429 * sx_assert(&udev->sr_sx, SA_LOCKED);
1432 USB_BUS_LOCK(udev->bus);
1433 /* filter the suspend events */
1434 if (udev->flags.peer_suspended == do_suspend) {
1435 USB_BUS_UNLOCK(udev->bus);
1439 udev->flags.peer_suspended = do_suspend;
1440 USB_BUS_UNLOCK(udev->bus);
1442 /* do the suspend or resume */
1444 for (i = 0; i != USB_IFACE_MAX; i++) {
1446 iface = usbd_get_iface(udev, i);
1447 if (iface == NULL) {
1448 /* looks like the end of the USB interfaces */
1451 usb_suspend_resume_sub(udev, iface->subdev, do_suspend);
1456 /*------------------------------------------------------------------------*
1457 * usbd_clear_stall_proc
1459 * This function performs generic USB clear stall operations.
1460 *------------------------------------------------------------------------*/
1462 usbd_clear_stall_proc(struct usb_proc_msg *_pm)
1464 struct usb_clear_stall_msg *pm = (void *)_pm;
1465 struct usb_device *udev = pm->udev;
1468 USB_BUS_UNLOCK(udev->bus);
1469 lockmgr(&udev->mtx_lock, LK_EXCLUSIVE);
1471 /* Start clear stall callback */
1472 usbd_transfer_start(udev->ctrl_xfer[1]);
1475 lockmgr(&udev->mtx_lock, LK_RELEASE);
1476 USB_BUS_LOCK(udev->bus);
1479 /*------------------------------------------------------------------------*
1482 * This function allocates a new USB device. This function is called
1483 * when a new device has been put in the powered state, but not yet in
1484 * the addressed state. Get initial descriptor, set the address, get
1485 * full descriptor and get strings.
1490 *------------------------------------------------------------------------*/
1492 usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
1493 struct usb_device *parent_hub, uint8_t depth, uint8_t port_index,
1494 uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode)
1496 struct usb_attach_arg uaa;
1497 struct usb_device *udev;
1498 struct usb_device *adev;
1499 struct usb_device *hub;
1500 uint8_t *scratch_ptr;
1501 size_t scratch_size;
1503 uint8_t device_index;
1504 uint8_t config_index;
1505 uint8_t config_quirk;
1506 uint8_t set_config_failed;
1508 DPRINTF("parent_dev=%p, bus=%p, parent_hub=%p, depth=%u, "
1509 "port_index=%u, port_no=%u, speed=%u, usb_mode=%u\n",
1510 parent_dev, bus, parent_hub, depth, port_index, port_no,
1514 * Find an unused device index. In USB Host mode this is the
1515 * same as the device address.
1517 * Device index zero is not used and device index 1 should
1518 * always be the root hub.
1520 for (device_index = USB_ROOT_HUB_ADDR;
1521 (device_index != bus->devices_max) &&
1522 (bus->devices[device_index] != NULL);
1523 device_index++) /* nop */;
1525 if (device_index == bus->devices_max) {
1526 device_printf(bus->bdev,
1527 "No free USB device index for new device\n");
1532 device_printf(bus->bdev,
1533 "Invalid device depth\n");
1536 udev = kmalloc(sizeof(*udev), M_USB, M_WAITOK | M_ZERO);
1540 /* initialise our SX-lock */
1541 /* sx_init_flags(&udev->ctrl_sx, "USB device SX lock", SX_DUPOK); */
1542 lockinit(&udev->ctrl_lock, "USB device SX lock", 0, 0);
1544 /* initialise our SX-lock */
1545 /* sx_init_flags(&udev->enum_sx, "USB config SX lock", SX_DUPOK);
1546 sx_init_flags(&udev->sr_sx, "USB suspend and resume SX lock", SX_NOWITNESS);
1548 lockinit(&udev->enum_lock, "USB config SX lock", 0, 0);
1549 lockinit(&udev->sr_lock, "USB suspend and resume SX lock", 0, 0);
1551 cv_init(&udev->ctrlreq_cv, "WCTRL");
1552 cv_init(&udev->ref_cv, "UGONE");
1554 /* initialise our mutex */
1555 lockinit(&udev->mtx_lock, "USB device mutex", 0, 0);
1557 /* initialise generic clear stall */
1558 udev->cs_msg[0].hdr.pm_callback = &usbd_clear_stall_proc;
1559 udev->cs_msg[0].udev = udev;
1560 udev->cs_msg[1].hdr.pm_callback = &usbd_clear_stall_proc;
1561 udev->cs_msg[1].udev = udev;
1563 /* initialise some USB device fields */
1564 udev->parent_hub = parent_hub;
1565 udev->parent_dev = parent_dev;
1566 udev->port_index = port_index;
1567 udev->port_no = port_no;
1568 udev->depth = depth;
1570 udev->address = USB_START_ADDR; /* default value */
1571 udev->plugtime = (usb_ticks_t)ticks;
1573 * We need to force the power mode to "on" because there are plenty
1574 * of USB devices out there that do not work very well with
1575 * automatic suspend and resume!
1577 udev->power_mode = usbd_filter_power_mode(udev, USB_POWER_MODE_ON);
1578 udev->pwr_save.last_xfer_time = ticks;
1579 /* we are not ready yet */
1582 /* set up default endpoint descriptor */
1583 udev->ctrl_ep_desc.bLength = sizeof(udev->ctrl_ep_desc);
1584 udev->ctrl_ep_desc.bDescriptorType = UDESC_ENDPOINT;
1585 udev->ctrl_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
1586 udev->ctrl_ep_desc.bmAttributes = UE_CONTROL;
1587 udev->ctrl_ep_desc.wMaxPacketSize[0] = USB_MAX_IPACKET;
1588 udev->ctrl_ep_desc.wMaxPacketSize[1] = 0;
1589 udev->ctrl_ep_desc.bInterval = 0;
1591 /* set up default endpoint companion descriptor */
1592 udev->ctrl_ep_comp_desc.bLength = sizeof(udev->ctrl_ep_comp_desc);
1593 udev->ctrl_ep_comp_desc.bDescriptorType = UDESC_ENDPOINT_SS_COMP;
1595 udev->ddesc.bMaxPacketSize = USB_MAX_IPACKET;
1597 udev->speed = speed;
1598 udev->flags.usb_mode = mode;
1600 /* search for our High Speed USB HUB, if any */
1603 hub = udev->parent_hub;
1606 if (hub->speed == USB_SPEED_HIGH) {
1607 udev->hs_hub_addr = hub->address;
1608 udev->parent_hs_hub = hub;
1609 udev->hs_port_no = adev->port_no;
1613 hub = hub->parent_hub;
1616 /* init the default endpoint */
1617 usb_init_endpoint(udev, 0,
1618 &udev->ctrl_ep_desc,
1619 &udev->ctrl_ep_comp_desc,
1622 /* set device index */
1623 udev->device_index = device_index;
1626 /* Create ugen name */
1627 ksnprintf(udev->ugen_name, sizeof(udev->ugen_name),
1628 USB_GENERIC_NAME "%u.%u", device_get_unit(bus->bdev),
1630 LIST_INIT(&udev->pd_list);
1632 /* Create the control endpoint device */
1633 udev->ctrl_dev = usb_make_dev(udev, NULL, 0, 0,
1634 FREAD|FWRITE, UID_ROOT, GID_OPERATOR, 0600);
1636 /* Create a link from /dev/ugenX.X to the default endpoint */
1637 if (udev->ctrl_dev != NULL)
1638 make_dev_alias(udev->ctrl_dev->cdev, "%s", udev->ugen_name);
1640 /* Initialise device */
1641 if (bus->methods->device_init != NULL) {
1642 err = (bus->methods->device_init) (udev);
1644 DPRINTFN(0, "device init %d failed "
1645 "(%s, ignored)\n", device_index,
1650 /* set powered device state after device init is complete */
1651 usb_set_device_state(udev, USB_STATE_POWERED);
1653 if (udev->flags.usb_mode == USB_MODE_HOST) {
1655 err = usbd_req_set_address(udev, NULL, device_index);
1658 * This is the new USB device address from now on, if
1659 * the set address request didn't set it already.
1661 if (udev->address == USB_START_ADDR)
1662 udev->address = device_index;
1665 * We ignore any set-address errors, hence there are
1666 * buggy USB devices out there that actually receive
1667 * the SETUP PID, but manage to set the address before
1668 * the STATUS stage is ACK'ed. If the device responds
1669 * to the subsequent get-descriptor at the new
1670 * address, then we know that the set-address command
1674 DPRINTFN(0, "set address %d failed "
1675 "(%s, ignored)\n", udev->address,
1679 /* We are not self powered */
1680 udev->flags.self_powered = 0;
1682 /* Set unconfigured state */
1683 udev->curr_config_no = USB_UNCONFIG_NO;
1684 udev->curr_config_index = USB_UNCONFIG_INDEX;
1686 /* Setup USB descriptors */
1687 err = (usb_temp_setup_by_index_p) (udev, usb_template);
1689 DPRINTFN(0, "setting up USB template failed maybe the USB "
1690 "template module has not been loaded\n");
1694 usb_set_device_state(udev, USB_STATE_ADDRESSED);
1696 /* setup the device descriptor and the initial "wMaxPacketSize" */
1697 err = usbd_setup_device_desc(udev, NULL);
1700 /* XXX try to re-enumerate the device */
1701 err = usbd_req_re_enumerate(udev, NULL);
1707 * Setup temporary USB attach args so that we can figure out some
1708 * basic quirks for this device.
1710 usb_init_attach_arg(udev, &uaa);
1712 if (usb_test_quirk(&uaa, UQ_BUS_POWERED)) {
1713 udev->flags.uq_bus_powered = 1;
1715 if (usb_test_quirk(&uaa, UQ_NO_STRINGS)) {
1716 udev->flags.no_strings = 1;
1719 * Workaround for buggy USB devices.
1721 * It appears that some string-less USB chips will crash and
1722 * disappear if any attempts are made to read any string
1725 * Try to detect such chips by checking the strings in the USB
1726 * device descriptor. If no strings are present there we
1727 * simply disable all USB strings.
1729 scratch_ptr = udev->bus->scratch[0].data;
1730 scratch_size = sizeof(udev->bus->scratch[0].data);
1732 if (udev->ddesc.iManufacturer ||
1733 udev->ddesc.iProduct ||
1734 udev->ddesc.iSerialNumber) {
1735 /* read out the language ID string */
1736 err = usbd_req_get_string_desc(udev, NULL,
1737 (char *)scratch_ptr, 4, 0, USB_LANGUAGE_TABLE);
1739 err = USB_ERR_INVAL;
1742 if (err || (scratch_ptr[0] < 4)) {
1743 udev->flags.no_strings = 1;
1750 /* load preferred value and mask */
1752 mask = usb_lang_mask;
1754 /* align length correctly */
1755 scratch_ptr[0] &= ~1;
1757 /* fix compiler warning */
1760 /* search for preferred language */
1761 for (x = 2; (x < scratch_ptr[0]); x += 2) {
1762 langid = UGETW(scratch_ptr + x);
1763 if ((langid & mask) == pref)
1766 if (x >= scratch_ptr[0]) {
1767 /* pick the first language as the default */
1768 DPRINTFN(1, "Using first language\n");
1769 langid = UGETW(scratch_ptr + 2);
1772 DPRINTFN(1, "Language selected: 0x%04x\n", langid);
1773 udev->langid = langid;
1776 /* assume 100mA bus powered for now. Changed when configured. */
1777 udev->power = USB_MIN_POWER;
1778 /* fetch the vendor and product strings from the device */
1779 usbd_set_device_strings(udev);
1781 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
1782 /* USB device mode setup is complete */
1788 * Most USB devices should attach to config index 0 by
1791 if (usb_test_quirk(&uaa, UQ_CFG_INDEX_0)) {
1794 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_1)) {
1797 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_2)) {
1800 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_3)) {
1803 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_4)) {
1811 set_config_failed = 0;
1814 DPRINTF("setting config %u\n", config_index);
1816 /* get the USB device configured */
1817 err = usbd_set_config_index(udev, config_index);
1819 if (udev->ddesc.bNumConfigurations != 0) {
1820 if (!set_config_failed) {
1821 set_config_failed = 1;
1822 /* XXX try to re-enumerate the device */
1823 err = usbd_req_re_enumerate(udev, NULL);
1825 goto repeat_set_config;
1827 DPRINTFN(0, "Failure selecting configuration index %u:"
1828 "%s, port %u, addr %u (ignored)\n",
1829 config_index, usbd_errstr(err), udev->port_no,
1833 * Some USB devices do not have any configurations. Ignore any
1834 * set config failures!
1839 if (!config_quirk && config_index + 1 < udev->ddesc.bNumConfigurations) {
1840 if ((udev->cdesc->bNumInterface < 2) &&
1841 usbd_get_no_descriptors(udev->cdesc, UDESC_ENDPOINT) == 0) {
1842 DPRINTFN(0, "Found no endpoints, trying next config\n");
1844 goto repeat_set_config;
1846 if (config_index == 0) {
1848 * Try to figure out if we have an
1849 * auto-install disk there:
1851 if (usb_iface_is_cdrom(udev, 0)) {
1852 DPRINTFN(0, "Found possible auto-install "
1853 "disk (trying next config)\n");
1855 goto repeat_set_config;
1859 if (set_config_failed == 0 && config_index == 0 &&
1860 usb_test_quirk(&uaa, UQ_MSC_NO_SYNC_CACHE) == 0 &&
1861 usb_test_quirk(&uaa, UQ_MSC_NO_GETMAXLUN) == 0) {
1864 * Try to figure out if there are any MSC quirks we
1865 * should apply automatically:
1867 err = usb_msc_auto_quirk(udev, 0);
1870 set_config_failed = 1;
1871 goto repeat_set_config;
1876 DPRINTF("new dev (addr %d), udev=%p, parent_hub=%p\n",
1877 udev->address, udev, udev->parent_hub);
1879 /* register our device - we are ready */
1880 usb_bus_port_set_device(bus, parent_hub ?
1881 parent_hub->hub->ports + port_index : NULL, udev, device_index);
1884 /* Symlink the ugen device name */
1885 udev->ugen_symlink = usb_alloc_symlink(udev->ugen_name);
1887 /* Announce device */
1888 kprintf("%s: <%s> at %s\n", udev->ugen_name,
1889 usb_get_manufacturer(udev),
1890 device_get_nameunit(udev->bus->bdev));
1894 usb_notify_addq("ATTACH", udev);
1899 * Free USB device and all subdevices, if any.
1901 usb_free_device(udev, 0);
1908 struct usb_fs_privdata *
1909 usb_make_dev(struct usb_device *udev, const char *devname, int ep,
1910 int fi, int rwmode, uid_t uid, gid_t gid, int mode)
1912 struct usb_fs_privdata* pd;
1915 /* Store information to locate ourselves again later */
1916 pd = kmalloc(sizeof(struct usb_fs_privdata), M_USBDEV,
1918 pd->bus_index = device_get_unit(udev->bus->bdev);
1919 pd->dev_index = udev->device_index;
1921 pd->fifo_index = fi;
1924 /* Now, create the device itself */
1925 if (devname == NULL) {
1927 ksnprintf(buffer, sizeof(buffer), USB_DEVICE_DIR "/%u.%u.%u",
1928 pd->bus_index, pd->dev_index, pd->ep_addr);
1931 pd->cdev = make_dev(&usb_devsw, 0, uid, gid, mode, "%s", devname);
1933 if (pd->cdev == NULL) {
1934 DPRINTFN(0, "Failed to create device %s\n", devname);
1935 kfree(pd, M_USBDEV);
1939 /* XXX setting si_drv1 and creating the device is not atomic! */
1940 pd->cdev->si_drv1 = pd;
1946 usb_destroy_dev(struct usb_fs_privdata *pd)
1951 destroy_dev(pd->cdev);
1953 kfree(pd, M_USBDEV);
1957 usb_cdev_create(struct usb_device *udev)
1959 struct usb_config_descriptor *cd;
1960 struct usb_endpoint_descriptor *ed;
1961 struct usb_descriptor *desc;
1962 struct usb_fs_privdata* pd;
1963 int inmode, outmode, inmask, outmask, mode;
1966 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("stale cdev entries"));
1968 DPRINTFN(2, "Creating device nodes\n");
1970 if (usbd_get_mode(udev) == USB_MODE_DEVICE) {
1973 } else { /* USB_MODE_HOST */
1983 * Collect all used endpoint numbers instead of just
1984 * generating 16 static endpoints.
1986 cd = usbd_get_config_descriptor(udev);
1987 while ((desc = usb_desc_foreach(cd, desc))) {
1988 /* filter out all endpoint descriptors */
1989 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
1990 (desc->bLength >= sizeof(*ed))) {
1991 ed = (struct usb_endpoint_descriptor *)desc;
1994 ep = ed->bEndpointAddress;
1995 if (UE_GET_DIR(ep) == UE_DIR_OUT)
1996 outmask |= 1 << UE_GET_ADDR(ep);
1998 inmask |= 1 << UE_GET_ADDR(ep);
2002 /* Create all available endpoints except EP0 */
2003 for (ep = 1; ep < 16; ep++) {
2004 mode = (inmask & (1 << ep)) ? inmode : 0;
2005 mode |= (outmask & (1 << ep)) ? outmode : 0;
2007 continue; /* no IN or OUT endpoint */
2009 pd = usb_make_dev(udev, NULL, ep, 0,
2010 mode, UID_ROOT, GID_OPERATOR, 0600);
2013 LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next);
2018 usb_cdev_free(struct usb_device *udev)
2020 struct usb_fs_privdata* pd;
2022 DPRINTFN(2, "Freeing device nodes\n");
2024 while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) {
2025 KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt"));
2027 LIST_REMOVE(pd, pd_next);
2029 usb_destroy_dev(pd);
2034 /*------------------------------------------------------------------------*
2037 * This function is NULL safe and will free an USB device and its
2038 * children devices, if any.
2040 * Flag values: Reserved, set to zero.
2041 *------------------------------------------------------------------------*/
2043 usb_free_device(struct usb_device *udev, uint8_t flag)
2045 struct usb_bus *bus;
2048 return; /* already freed */
2050 DPRINTFN(4, "udev=%p port=%d\n", udev, udev->port_no);
2053 usb_set_device_state(udev, USB_STATE_DETACHED);
2056 usb_notify_addq("DETACH", udev);
2060 kprintf("%s: <%s> at %s (disconnected)\n", udev->ugen_name,
2061 usb_get_manufacturer(udev), device_get_nameunit(bus->bdev));
2063 /* Destroy UGEN symlink, if any */
2064 if (udev->ugen_symlink) {
2065 usb_free_symlink(udev->ugen_symlink);
2066 udev->ugen_symlink = NULL;
2070 * Unregister our device first which will prevent any further
2073 usb_bus_port_set_device(bus, udev->parent_hub ?
2074 udev->parent_hub->hub->ports + udev->port_index : NULL,
2075 NULL, USB_ROOT_HUB_ADDR);
2078 /* wait for all pending references to go away: */
2079 lockmgr(&usb_ref_lock, LK_EXCLUSIVE);
2081 while (udev->refcount != 0) {
2082 cv_wait(&udev->ref_cv, &usb_ref_lock);
2084 lockmgr(&usb_ref_lock, LK_RELEASE);
2086 usb_destroy_dev(udev->ctrl_dev);
2089 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
2090 /* stop receiving any control transfers (Device Side Mode) */
2091 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2094 /* the following will get the device unconfigured in software */
2095 usb_unconfigure(udev, USB_UNCFG_FLAG_FREE_EP0);
2097 /* unsetup any leftover default USB transfers */
2098 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2100 /* template unsetup, if any */
2101 (usb_temp_unsetup_p) (udev);
2104 * Make sure that our clear-stall messages are not queued
2107 USB_BUS_LOCK(udev->bus);
2108 usb_proc_mwait(&udev->bus->non_giant_callback_proc,
2109 &udev->cs_msg[0], &udev->cs_msg[1]);
2110 USB_BUS_UNLOCK(udev->bus);
2112 lockuninit(&udev->ctrl_lock);
2113 lockuninit(&udev->enum_lock);
2114 lockuninit(&udev->sr_lock);
2116 cv_destroy(&udev->ctrlreq_cv);
2117 cv_destroy(&udev->ref_cv);
2119 lockuninit(&udev->mtx_lock);
2121 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("leaked cdev entries"));
2124 /* Uninitialise device */
2125 if (bus->methods->device_uninit != NULL)
2126 (bus->methods->device_uninit) (udev);
2129 kfree(udev->serial, M_USB);
2130 kfree(udev->manufacturer, M_USB);
2131 kfree(udev->product, M_USB);
2135 /*------------------------------------------------------------------------*
2138 * This function is the safe way to get the USB interface structure
2139 * pointer by interface index.
2142 * NULL: Interface not present.
2143 * Else: Pointer to USB interface structure.
2144 *------------------------------------------------------------------------*/
2145 struct usb_interface *
2146 usbd_get_iface(struct usb_device *udev, uint8_t iface_index)
2148 struct usb_interface *iface = udev->ifaces + iface_index;
2150 if (iface_index >= udev->ifaces_max)
2155 /*------------------------------------------------------------------------*
2156 * usbd_find_descriptor
2158 * This function will lookup the first descriptor that matches the
2159 * criteria given by the arguments "type" and "subtype". Descriptors
2160 * will only be searched within the interface having the index
2161 * "iface_index". If the "id" argument points to an USB descriptor,
2162 * it will be skipped before the search is started. This allows
2163 * searching for multiple descriptors using the same criteria. Else
2164 * the search is started after the interface descriptor.
2167 * NULL: End of descriptors
2168 * Else: A descriptor matching the criteria
2169 *------------------------------------------------------------------------*/
2171 usbd_find_descriptor(struct usb_device *udev, void *id, uint8_t iface_index,
2172 uint8_t type, uint8_t type_mask,
2173 uint8_t subtype, uint8_t subtype_mask)
2175 struct usb_descriptor *desc;
2176 struct usb_config_descriptor *cd;
2177 struct usb_interface *iface;
2179 cd = usbd_get_config_descriptor(udev);
2184 iface = usbd_get_iface(udev, iface_index);
2185 if (iface == NULL) {
2188 id = usbd_get_interface_descriptor(iface);
2195 while ((desc = usb_desc_foreach(cd, desc))) {
2197 if (desc->bDescriptorType == UDESC_INTERFACE) {
2200 if (((desc->bDescriptorType & type_mask) == type) &&
2201 ((desc->bDescriptorSubtype & subtype_mask) == subtype)) {
2208 /*------------------------------------------------------------------------*
2211 * This function will dump information from the device descriptor
2212 * belonging to the USB device pointed to by "udev", to the string
2213 * pointed to by "dst_ptr" having a maximum length of "dst_len" bytes
2214 * including the terminating zero.
2215 *------------------------------------------------------------------------*/
2217 usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len)
2219 struct usb_device_descriptor *udd = &udev->ddesc;
2223 bcdUSB = UGETW(udd->bcdUSB);
2224 bcdDevice = UGETW(udd->bcdDevice);
2226 if (udd->bDeviceClass != 0xFF) {
2227 ksnprintf(dst_ptr, dst_len, "%s %s, class %d/%d, rev %x.%02x/"
2229 usb_get_manufacturer(udev),
2230 usb_get_product(udev),
2231 udd->bDeviceClass, udd->bDeviceSubClass,
2232 (bcdUSB >> 8), bcdUSB & 0xFF,
2233 (bcdDevice >> 8), bcdDevice & 0xFF,
2236 ksnprintf(dst_ptr, dst_len, "%s %s, rev %x.%02x/"
2238 usb_get_manufacturer(udev),
2239 usb_get_product(udev),
2240 (bcdUSB >> 8), bcdUSB & 0xFF,
2241 (bcdDevice >> 8), bcdDevice & 0xFF,
2248 * Descriptions of of known vendors and devices ("products").
2250 struct usb_knowndev {
2254 const char *vendorname;
2255 const char *productname;
2258 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
2260 #include "usbdevs.h"
2261 #include "usbdevs_data.h"
2262 #endif /* USB_VERBOSE */
2265 usbd_set_device_strings(struct usb_device *udev)
2267 struct usb_device_descriptor *udd = &udev->ddesc;
2269 const struct usb_knowndev *kdp;
2274 uint16_t product_id;
2276 temp_ptr = (char *)udev->bus->scratch[0].data;
2277 temp_size = sizeof(udev->bus->scratch[0].data);
2279 vendor_id = UGETW(udd->idVendor);
2280 product_id = UGETW(udd->idProduct);
2282 /* get serial number string */
2283 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2284 udev->ddesc.iSerialNumber);
2285 udev->serial = kstrdup(temp_ptr, M_USB);
2287 /* get manufacturer string */
2288 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2289 udev->ddesc.iManufacturer);
2290 usb_trim_spaces(temp_ptr);
2291 if (temp_ptr[0] != '\0')
2292 udev->manufacturer = kstrdup(temp_ptr, M_USB);
2294 /* get product string */
2295 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2296 udev->ddesc.iProduct);
2297 usb_trim_spaces(temp_ptr);
2298 if (temp_ptr[0] != '\0')
2299 udev->product = kstrdup(temp_ptr, M_USB);
2302 if (udev->manufacturer == NULL || udev->product == NULL) {
2303 for (kdp = usb_knowndevs; kdp->vendorname != NULL; kdp++) {
2304 if (kdp->vendor == vendor_id &&
2305 (kdp->product == product_id ||
2306 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
2309 if (kdp->vendorname != NULL) {
2310 /* XXX should use pointer to knowndevs string */
2311 if (udev->manufacturer == NULL) {
2312 udev->manufacturer = kstrdup(kdp->vendorname,
2315 if (udev->product == NULL &&
2316 (kdp->flags & USB_KNOWNDEV_NOPROD) == 0) {
2317 udev->product = kstrdup(kdp->productname,
2323 /* Provide default strings if none were found */
2324 if (udev->manufacturer == NULL) {
2325 ksnprintf(temp_ptr, temp_size, "vendor 0x%04x", vendor_id);
2326 udev->manufacturer = kstrdup(temp_ptr, M_USB);
2328 if (udev->product == NULL) {
2329 ksnprintf(temp_ptr, temp_size, "product 0x%04x", product_id);
2330 udev->product = kstrdup(temp_ptr, M_USB);
2339 usbd_get_mode(struct usb_device *udev)
2341 return (udev->flags.usb_mode);
2346 * See: USB_SPEED_XXX
2349 usbd_get_speed(struct usb_device *udev)
2351 return (udev->speed);
2355 usbd_get_isoc_fps(struct usb_device *udev)
2358 switch (udev->speed) {
2360 case USB_SPEED_FULL:
2367 struct usb_device_descriptor *
2368 usbd_get_device_descriptor(struct usb_device *udev)
2371 return (NULL); /* be NULL safe */
2372 return (&udev->ddesc);
2375 struct usb_config_descriptor *
2376 usbd_get_config_descriptor(struct usb_device *udev)
2379 return (NULL); /* be NULL safe */
2380 return (udev->cdesc);
2383 /*------------------------------------------------------------------------*
2384 * usb_test_quirk - test a device for a given quirk
2387 * 0: The USB device does not have the given quirk.
2388 * Else: The USB device has the given quirk.
2389 *------------------------------------------------------------------------*/
2391 usb_test_quirk(const struct usb_attach_arg *uaa, uint16_t quirk)
2396 if (quirk == UQ_NONE)
2399 /* search the automatic per device quirks first */
2401 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2402 if (uaa->device->autoQuirk[x] == quirk)
2406 /* search global quirk table, if any */
2408 found = (usb_test_quirk_p) (&uaa->info, quirk);
2413 struct usb_interface_descriptor *
2414 usbd_get_interface_descriptor(struct usb_interface *iface)
2417 return (NULL); /* be NULL safe */
2418 return (iface->idesc);
2422 usbd_get_interface_altindex(struct usb_interface *iface)
2424 return (iface->alt_index);
2428 usbd_get_bus_index(struct usb_device *udev)
2430 return ((uint8_t)device_get_unit(udev->bus->bdev));
2434 usbd_get_device_index(struct usb_device *udev)
2436 return (udev->device_index);
2441 usb_notify_addq(const char *type, struct usb_device *udev)
2443 struct usb_interface *iface;
2447 /* announce the device */
2448 sb = sbuf_new(NULL, NULL, 4096, SBUF_AUTOEXTEND);
2457 "devsubclass=0x%02x "
2470 UGETW(udev->ddesc.idVendor),
2471 UGETW(udev->ddesc.idProduct),
2472 udev->ddesc.bDeviceClass,
2473 udev->ddesc.bDeviceSubClass,
2474 usb_get_serial(udev),
2475 UGETW(udev->ddesc.bcdDevice),
2476 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2479 , udev->parent_hub != NULL ?
2480 udev->parent_hub->ugen_name :
2481 device_get_nameunit(device_get_parent(udev->bus->bdev))
2485 devctl_notify("USB", "DEVICE", type, sbuf_data(sb));
2488 /* announce each interface */
2489 for (i = 0; i < USB_IFACE_MAX; i++) {
2491 iface = usbd_get_iface(udev, i);
2493 break; /* end of interfaces */
2494 if (iface->idesc == NULL)
2495 continue; /* no interface descriptor */
2498 sb = sbuf_new(NULL, NULL, 4096, SBUF_AUTOEXTEND);
2507 "devsubclass=0x%02x "
2514 "intsubclass=0x%02x "
2515 "intprotocol=0x%02x",
2520 UGETW(udev->ddesc.idVendor),
2521 UGETW(udev->ddesc.idProduct),
2522 udev->ddesc.bDeviceClass,
2523 udev->ddesc.bDeviceSubClass,
2524 usb_get_serial(udev),
2525 UGETW(udev->ddesc.bcdDevice),
2526 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2527 iface->idesc->bInterfaceNumber,
2528 iface->idesc->bNumEndpoints,
2529 iface->idesc->bInterfaceClass,
2530 iface->idesc->bInterfaceSubClass,
2531 iface->idesc->bInterfaceProtocol);
2533 devctl_notify("USB", "INTERFACE", type, sbuf_data(sb));
2540 /*------------------------------------------------------------------------*
2541 * usb_fifo_free_wrap
2543 * This function will free the FIFOs.
2545 * Description of "flag" argument: If the USB_UNCFG_FLAG_FREE_EP0 flag
2546 * is set and "iface_index" is set to "USB_IFACE_INDEX_ANY", we free
2547 * all FIFOs. If the USB_UNCFG_FLAG_FREE_EP0 flag is not set and
2548 * "iface_index" is set to "USB_IFACE_INDEX_ANY", we free all non
2549 * control endpoint FIFOs. If "iface_index" is not set to
2550 * "USB_IFACE_INDEX_ANY" the flag has no effect.
2551 *------------------------------------------------------------------------*/
2553 usb_fifo_free_wrap(struct usb_device *udev,
2554 uint8_t iface_index, uint8_t flag)
2560 * Free any USB FIFOs on the given interface:
2562 for (i = 0; i != USB_FIFO_MAX; i++) {
2567 /* Check if the interface index matches */
2568 if (iface_index == f->iface_index) {
2569 if (f->methods != &usb_ugen_methods) {
2571 * Don't free any non-generic FIFOs in
2576 if ((f->dev_ep_index == 0) &&
2577 (f->fs_xfer == NULL)) {
2578 /* no need to free this FIFO */
2581 } else if (iface_index == USB_IFACE_INDEX_ANY) {
2582 if ((f->methods == &usb_ugen_methods) &&
2583 (f->dev_ep_index == 0) &&
2584 (!(flag & USB_UNCFG_FLAG_FREE_EP0)) &&
2585 (f->fs_xfer == NULL)) {
2586 /* no need to free this FIFO */
2590 /* no need to free this FIFO */
2593 /* free this FIFO */
2599 /*------------------------------------------------------------------------*
2600 * usb_peer_can_wakeup
2603 * 0: Peer cannot do resume signalling.
2604 * Else: Peer can do resume signalling.
2605 *------------------------------------------------------------------------*/
2607 usb_peer_can_wakeup(struct usb_device *udev)
2609 const struct usb_config_descriptor *cdp;
2612 if ((cdp != NULL) && (udev->flags.usb_mode == USB_MODE_HOST)) {
2613 return (cdp->bmAttributes & UC_REMOTE_WAKEUP);
2615 return (0); /* not supported */
2619 usb_set_device_state(struct usb_device *udev, enum usb_dev_state state)
2622 KASSERT(state < USB_STATE_MAX, ("invalid udev state"));
2624 DPRINTF("udev %p state %s -> %s\n", udev,
2625 usb_statestr(udev->state), usb_statestr(state));
2626 udev->state = state;
2628 if (udev->bus->methods->device_state_change != NULL)
2629 (udev->bus->methods->device_state_change) (udev);
2633 usb_get_device_state(struct usb_device *udev)
2636 return (USB_STATE_DETACHED);
2637 return (udev->state);
2641 usbd_device_attached(struct usb_device *udev)
2643 return (udev->state > USB_STATE_DETACHED);
2646 /* The following function locks enumerating the given USB device. */
2649 usbd_enum_lock(struct usb_device *udev)
2651 lockmgr(&udev->enum_lock, LK_EXCLUSIVE);
2652 lockmgr(&udev->sr_lock, LK_EXCLUSIVE);
2654 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2655 * are locked before locking Giant. Else the lock can be
2656 * locked multiple times.
2658 /* mtx_lock(&Giant); */
2661 /* The following function unlocks enumerating the given USB device. */
2664 usbd_enum_unlock(struct usb_device *udev)
2666 /* mtx_unlock(&Giant); */
2667 /* sx_xunlock(&udev->enum_sx);
2668 sx_xunlock(&udev->sr_sx); */
2669 lockmgr(&udev->enum_lock, LK_RELEASE);
2670 lockmgr(&udev->sr_lock, LK_RELEASE);
2673 /* The following function locks suspend and resume. */
2676 usbd_sr_lock(struct usb_device *udev)
2678 lockmgr(&udev->sr_lock, LK_EXCLUSIVE);
2680 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2681 * are locked before locking Giant. Else the lock can be
2682 * locked multiple times.
2684 /* mtx_lock(&Giant); */
2687 /* The following function unlocks suspend and resume. */
2690 usbd_sr_unlock(struct usb_device *udev)
2692 /* mtx_unlock(&Giant);*/
2693 /* sx_xunlock(&udev->sr_sx);*/
2694 lockmgr(&udev->sr_lock, LK_RELEASE);
2698 * The following function checks the enumerating lock for the given
2703 usbd_enum_is_locked(struct usb_device *udev)
2705 /* XXX: Make sure that we return a correct value here */
2706 return (lockstatus(&udev->enum_lock, curthread) == LK_EXCLUSIVE);
2710 * The following function is used to set the per-interface specific
2711 * plug and play information. The string referred to by the pnpinfo
2712 * argument can safely be freed after calling this function. The
2713 * pnpinfo of an interface will be reset at device detach or when
2714 * passing a NULL argument to this function. This function
2715 * returns zero on success, else a USB_ERR_XXX failure code.
2719 usbd_set_pnpinfo(struct usb_device *udev, uint8_t iface_index, const char *pnpinfo)
2721 struct usb_interface *iface;
2723 iface = usbd_get_iface(udev, iface_index);
2725 return (USB_ERR_INVAL);
2727 if (iface->pnpinfo != NULL) {
2728 kfree(iface->pnpinfo, M_USBDEV);
2729 iface->pnpinfo = NULL;
2732 if (pnpinfo == NULL || pnpinfo[0] == 0)
2733 return (0); /* success */
2735 iface->pnpinfo = kstrdup(pnpinfo, M_USBDEV);
2736 if (iface->pnpinfo == NULL)
2737 return (USB_ERR_NOMEM);
2739 return (0); /* success */
2743 usbd_add_dynamic_quirk(struct usb_device *udev, uint16_t quirk)
2747 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2748 if (udev->autoQuirk[x] == 0 ||
2749 udev->autoQuirk[x] == quirk) {
2750 udev->autoQuirk[x] = quirk;
2751 return (0); /* success */
2754 return (USB_ERR_NOMEM);