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: */
111 int usb_template = USB_TEMPLATE;
116 TUNABLE_INT("hw.usb.usb_template", &usb_template);
117 SYSCTL_INT(_hw_usb, OID_AUTO, template, CTLFLAG_RW,
118 &usb_template, 0, "Selected USB device side template");
120 /* English is default language */
122 static int usb_lang_id = 0x0009;
123 static int usb_lang_mask = 0x00FF;
125 TUNABLE_INT("hw.usb.usb_lang_id", &usb_lang_id);
126 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_id, CTLFLAG_RW,
127 &usb_lang_id, 0, "Preferred USB language ID");
129 TUNABLE_INT("hw.usb.usb_lang_mask", &usb_lang_mask);
130 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_mask, CTLFLAG_RW,
131 &usb_lang_mask, 0, "Preferred USB language mask");
133 static const char* statestr[USB_STATE_MAX] = {
134 [USB_STATE_DETACHED] = "DETACHED",
135 [USB_STATE_ATTACHED] = "ATTACHED",
136 [USB_STATE_POWERED] = "POWERED",
137 [USB_STATE_ADDRESSED] = "ADDRESSED",
138 [USB_STATE_CONFIGURED] = "CONFIGURED",
142 usb_statestr(enum usb_dev_state state)
144 return ((state < USB_STATE_MAX) ? statestr[state] : "UNKNOWN");
148 usb_get_manufacturer(struct usb_device *udev)
150 return (udev->manufacturer ? udev->manufacturer : "Unknown");
154 usb_get_product(struct usb_device *udev)
156 return (udev->product ? udev->product : "");
160 usb_get_serial(struct usb_device *udev)
162 return (udev->serial ? udev->serial : "");
165 /*------------------------------------------------------------------------*
166 * usbd_get_ep_by_addr
168 * This function searches for an USB ep by endpoint address and
174 *------------------------------------------------------------------------*/
175 struct usb_endpoint *
176 usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val)
178 struct usb_endpoint *ep = udev->endpoints;
179 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
181 EA_MASK = (UE_DIR_IN | UE_DIR_OUT | UE_ADDR),
185 * According to the USB specification not all bits are used
186 * for the endpoint address. Keep defined bits only:
191 * Iterate accross all the USB endpoints searching for a match
192 * based on the endpoint address:
194 for (; ep != ep_end; ep++) {
196 if (ep->edesc == NULL) {
199 /* do the mask and check the value */
200 if ((ep->edesc->bEndpointAddress & EA_MASK) == ea_val) {
206 * The default endpoint is always present and is checked separately:
208 if ((udev->ctrl_ep.edesc != NULL) &&
209 ((udev->ctrl_ep.edesc->bEndpointAddress & EA_MASK) == ea_val)) {
219 /*------------------------------------------------------------------------*
222 * This function searches for an USB endpoint based on the information
223 * given by the passed "struct usb_config" pointer.
227 * Else: Pointer to "struct usb_endpoint".
228 *------------------------------------------------------------------------*/
229 struct usb_endpoint *
230 usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
231 const struct usb_config *setup)
233 struct usb_endpoint *ep = udev->endpoints;
234 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
235 uint8_t index = setup->ep_index;
241 DPRINTFN(10, "udev=%p iface_index=%d address=0x%x "
242 "type=0x%x dir=0x%x index=%d\n",
243 udev, iface_index, setup->endpoint,
244 setup->type, setup->direction, setup->ep_index);
248 if (setup->usb_mode != USB_MODE_DUAL &&
249 udev->flags.usb_mode != setup->usb_mode) {
250 /* wrong mode - no endpoint */
254 /* setup expected endpoint direction mask and value */
256 if (setup->direction == UE_DIR_RX) {
257 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
258 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
259 UE_DIR_OUT : UE_DIR_IN;
260 } else if (setup->direction == UE_DIR_TX) {
261 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
262 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
263 UE_DIR_IN : UE_DIR_OUT;
264 } else if (setup->direction == UE_DIR_ANY) {
265 /* match any endpoint direction */
269 /* match the given endpoint direction */
270 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
271 ea_val = (setup->direction & (UE_DIR_IN | UE_DIR_OUT));
274 /* setup expected endpoint address */
276 if (setup->endpoint == UE_ADDR_ANY) {
277 /* match any endpoint address */
279 /* match the given endpoint address */
281 ea_val |= (setup->endpoint & UE_ADDR);
284 /* setup expected endpoint type */
286 if (setup->type == UE_BULK_INTR) {
287 /* this will match BULK and INTERRUPT endpoints */
290 } else if (setup->type == UE_TYPE_ANY) {
291 /* match any endpoint type */
295 /* match the given endpoint type */
296 type_mask = UE_XFERTYPE;
297 type_val = (setup->type & UE_XFERTYPE);
301 * Iterate accross all the USB endpoints searching for a match
302 * based on the endpoint address. Note that we are searching
303 * the endpoints from the beginning of the "udev->endpoints" array.
305 for (; ep != ep_end; ep++) {
307 if ((ep->edesc == NULL) ||
308 (ep->iface_index != iface_index)) {
311 /* do the masks and check the values */
313 if (((ep->edesc->bEndpointAddress & ea_mask) == ea_val) &&
314 ((ep->edesc->bmAttributes & type_mask) == type_val)) {
322 * Match against default endpoint last, so that "any endpoint", "any
323 * address" and "any direction" returns the first endpoint of the
324 * interface. "iface_index" and "direction" is ignored:
326 if ((udev->ctrl_ep.edesc != NULL) &&
327 ((udev->ctrl_ep.edesc->bEndpointAddress & ea_mask) == ea_val) &&
328 ((udev->ctrl_ep.edesc->bmAttributes & type_mask) == type_val) &&
339 /*------------------------------------------------------------------------*
340 * usbd_interface_count
342 * This function stores the number of USB interfaces excluding
343 * alternate settings, which the USB config descriptor reports into
344 * the unsigned 8-bit integer pointed to by "count".
349 *------------------------------------------------------------------------*/
351 usbd_interface_count(struct usb_device *udev, uint8_t *count)
353 if (udev->cdesc == NULL) {
355 return (USB_ERR_NOT_CONFIGURED);
357 *count = udev->ifaces_max;
358 return (USB_ERR_NORMAL_COMPLETION);
361 /*------------------------------------------------------------------------*
364 * This function will initialise the USB endpoint structure pointed to by
365 * the "endpoint" argument. The structure pointed to by "endpoint" must be
366 * zeroed before calling this function.
367 *------------------------------------------------------------------------*/
369 usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
370 struct usb_endpoint_descriptor *edesc,
371 struct usb_endpoint_ss_comp_descriptor *ecomp,
372 struct usb_endpoint *ep)
374 struct usb_bus_methods *methods;
377 methods = udev->bus->methods;
379 (methods->endpoint_init) (udev, edesc, ep);
381 /* initialise USB endpoint structure */
384 ep->iface_index = iface_index;
386 /* setup USB stream queues */
387 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
388 TAILQ_INIT(&ep->endpoint_q[x].head);
389 ep->endpoint_q[x].command = &usbd_pipe_start;
392 /* the pipe is not supported by the hardware */
393 if (ep->methods == NULL)
396 /* check for SUPER-speed streams mode endpoint */
397 if (udev->speed == USB_SPEED_SUPER && ecomp != NULL &&
398 (edesc->bmAttributes & UE_XFERTYPE) == UE_BULK &&
399 (UE_GET_BULK_STREAMS(ecomp->bmAttributes) != 0)) {
400 usbd_set_endpoint_mode(udev, ep, USB_EP_MODE_STREAMS);
402 usbd_set_endpoint_mode(udev, ep, USB_EP_MODE_DEFAULT);
405 /* clear stall, if any */
406 if (methods->clear_stall != NULL) {
407 USB_BUS_LOCK(udev->bus);
408 (methods->clear_stall) (udev, ep);
409 USB_BUS_UNLOCK(udev->bus);
413 /*-----------------------------------------------------------------------*
414 * usb_endpoint_foreach
416 * This function will iterate all the USB endpoints except the control
417 * endpoint. This function is NULL safe.
420 * NULL: End of USB endpoints
421 * Else: Pointer to next USB endpoint
422 *------------------------------------------------------------------------*/
423 struct usb_endpoint *
424 usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
426 struct usb_endpoint *ep_end;
432 ep_end = udev->endpoints + udev->endpoints_max;
434 /* get next endpoint */
436 ep = udev->endpoints;
440 /* find next allocated ep */
441 while (ep != ep_end) {
442 if (ep->edesc != NULL)
449 /*------------------------------------------------------------------------*
452 * This function will free all USB interfaces and USB endpoints belonging
455 * Flag values, see "USB_UNCFG_FLAG_XXX".
456 *------------------------------------------------------------------------*/
458 usb_unconfigure(struct usb_device *udev, uint8_t flag)
462 /* Prevent re-enumeration */
463 do_unlock = usbd_enum_lock(udev);
465 /* detach all interface drivers */
466 usb_detach_device(udev, USB_IFACE_INDEX_ANY, flag);
469 /* free all FIFOs except control endpoint FIFOs */
470 usb_fifo_free_wrap(udev, USB_IFACE_INDEX_ANY, flag);
473 * Free all cdev's, if any.
478 #if USB_HAVE_COMPAT_LINUX
479 /* free Linux compat device, if any */
480 if (udev->linux_endpoint_start) {
481 usb_linux_free_device(udev);
482 udev->linux_endpoint_start = NULL;
486 usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_FREE);
488 /* free "cdesc" after "ifaces" and "endpoints", if any */
489 if (udev->cdesc != NULL) {
490 if (udev->flags.usb_mode != USB_MODE_DEVICE)
491 usbd_free_config_desc(udev, udev->cdesc);
494 /* set unconfigured state */
495 udev->curr_config_no = USB_UNCONFIG_NO;
496 udev->curr_config_index = USB_UNCONFIG_INDEX;
499 usbd_enum_unlock(udev);
502 /*------------------------------------------------------------------------*
503 * usbd_set_config_index
505 * This function selects configuration by index, independent of the
506 * actual configuration number. This function should not be used by
512 *------------------------------------------------------------------------*/
514 usbd_set_config_index(struct usb_device *udev, uint8_t index)
516 struct usb_status ds;
517 struct usb_config_descriptor *cdp;
524 DPRINTFN(6, "udev=%p index=%d\n", udev, index);
526 /* Prevent re-enumeration */
527 do_unlock = usbd_enum_lock(udev);
529 usb_unconfigure(udev, 0);
531 if (index == USB_UNCONFIG_INDEX) {
533 * Leave unallocated when unconfiguring the
534 * device. "usb_unconfigure()" will also reset
535 * the current config number and index.
537 err = usbd_req_set_config(udev, NULL, USB_UNCONFIG_NO);
538 if (udev->state == USB_STATE_CONFIGURED)
539 usb_set_device_state(udev, USB_STATE_ADDRESSED);
542 /* get the full config descriptor */
543 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
544 /* save some memory */
545 err = usbd_req_get_descriptor_ptr(udev, &cdp,
546 (UDESC_CONFIG << 8) | index);
549 err = usbd_req_get_config_desc_full(udev,
555 /* set the new config descriptor */
559 /* Figure out if the device is self or bus powered. */
561 if ((!udev->flags.uq_bus_powered) &&
562 (cdp->bmAttributes & UC_SELF_POWERED) &&
563 (udev->flags.usb_mode == USB_MODE_HOST)) {
564 /* May be self powered. */
565 if (cdp->bmAttributes & UC_BUS_POWERED) {
566 /* Must ask device. */
567 err = usbd_req_get_device_status(udev, NULL, &ds);
569 DPRINTFN(0, "could not read "
570 "device status: %s\n",
572 } else if (UGETW(ds.wStatus) & UDS_SELF_POWERED) {
575 DPRINTF("status=0x%04x \n",
580 DPRINTF("udev=%p cdesc=%p (addr %d) cno=%d attr=0x%02x, "
581 "selfpowered=%d, power=%d\n",
583 udev->address, cdp->bConfigurationValue, cdp->bmAttributes,
584 selfpowered, cdp->bMaxPower * 2);
586 /* Check if we have enough power. */
587 power = cdp->bMaxPower * 2;
589 if (udev->parent_hub) {
590 max_power = udev->parent_hub->hub->portpower;
592 max_power = USB_MAX_POWER;
595 if (power > max_power) {
596 DPRINTFN(0, "power exceeded %d > %d\n", power, max_power);
597 err = USB_ERR_NO_POWER;
600 /* Only update "self_powered" in USB Host Mode */
601 if (udev->flags.usb_mode == USB_MODE_HOST) {
602 udev->flags.self_powered = selfpowered;
605 udev->curr_config_no = cdp->bConfigurationValue;
606 udev->curr_config_index = index;
607 usb_set_device_state(udev, USB_STATE_CONFIGURED);
609 /* Set the actual configuration value. */
610 err = usbd_req_set_config(udev, NULL, cdp->bConfigurationValue);
615 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_ALLOC);
620 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_INIT);
626 /* create device nodes for each endpoint */
627 usb_cdev_create(udev);
631 DPRINTF("error=%s\n", usbd_errstr(err));
633 usb_unconfigure(udev, 0);
636 usbd_enum_unlock(udev);
640 /*------------------------------------------------------------------------*
643 * This function will allocate and free USB interfaces and USB endpoints,
644 * parse the USB configuration structure and initialise the USB endpoints
645 * and interfaces. If "iface_index" is not equal to
646 * "USB_IFACE_INDEX_ANY" then the "cmd" parameter is the
647 * alternate_setting to be selected for the given interface. Else the
648 * "cmd" parameter is defined by "USB_CFG_XXX". "iface_index" can be
649 * "USB_IFACE_INDEX_ANY" or a valid USB interface index. This function
650 * is typically called when setting the configuration or when setting
651 * an alternate interface.
656 *------------------------------------------------------------------------*/
658 usb_config_parse(struct usb_device *udev, uint8_t iface_index, uint8_t cmd)
660 struct usb_idesc_parse_state ips;
661 struct usb_interface_descriptor *id;
662 struct usb_endpoint_descriptor *ed;
663 struct usb_interface *iface;
664 struct usb_endpoint *ep;
672 if (iface_index != USB_IFACE_INDEX_ANY) {
673 /* parameter overload */
683 DPRINTFN(5, "iface_index=%d cmd=%d\n",
686 if (cmd == USB_CFG_FREE)
689 if (cmd == USB_CFG_INIT) {
690 KKASSERT(lockowned(&udev->enum_lock));
692 /* check for in-use endpoints */
694 ep = udev->endpoints;
695 ep_max = udev->endpoints_max;
697 /* look for matching endpoints */
698 if ((iface_index == USB_IFACE_INDEX_ANY) ||
699 (iface_index == ep->iface_index)) {
700 if (ep->refcount_alloc != 0) {
702 * This typically indicates a
703 * more serious error.
705 err = USB_ERR_IN_USE;
708 memset(ep, 0, sizeof(*ep));
709 /* make sure we don't zero the endpoint again */
710 ep->iface_index = USB_IFACE_INDEX_ANY;
720 memset(&ips, 0, sizeof(ips));
725 while ((id = usb_idesc_foreach(udev->cdesc, &ips))) {
727 iface = udev->ifaces + ips.iface_index;
729 /* check for specific interface match */
731 if (cmd == USB_CFG_INIT) {
732 if ((iface_index != USB_IFACE_INDEX_ANY) &&
733 (iface_index != ips.iface_index)) {
734 /* wrong interface */
736 } else if (alt_index != ips.iface_index_alt) {
737 /* wrong alternate setting */
740 /* initialise interface */
746 /* check for new interface */
747 if (ips.iface_index_alt == 0) {
748 /* update current number of endpoints */
753 /* setup the USB interface structure */
755 /* set alternate index */
756 iface->alt_index = alt_index;
757 /* set default interface parent */
758 if (iface_index == USB_IFACE_INDEX_ANY) {
759 iface->parent_iface_index =
764 DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
766 ed = (struct usb_endpoint_descriptor *)id;
770 /* iterate all the endpoint descriptors */
771 while ((ed = usb_edesc_foreach(udev->cdesc, ed))) {
773 /* check if endpoint limit has been reached */
774 if (temp >= USB_MAX_EP_UNITS) {
775 DPRINTF("Endpoint limit reached\n");
779 ep = udev->endpoints + temp;
784 ecomp = usb_ed_comp_foreach(udev->cdesc, (void *)ed);
786 DPRINTFN(5, "Found endpoint companion descriptor\n");
788 usb_init_endpoint(udev,
789 ips.iface_index, ed, ecomp, ep);
794 /* find maximum number of endpoints */
800 /* NOTE: It is valid to have no interfaces and no endpoints! */
802 if (cmd == USB_CFG_ALLOC) {
803 udev->ifaces_max = ips.iface_index;
804 #if (USB_HAVE_FIXED_IFACE == 0)
806 if (udev->ifaces_max != 0) {
807 udev->ifaces = kmalloc(sizeof(*iface) * udev->ifaces_max,
808 M_USB, M_WAITOK | M_ZERO);
809 if (udev->ifaces == NULL) {
815 #if (USB_HAVE_FIXED_ENDPOINT == 0)
817 udev->endpoints = kmalloc(sizeof(*ep) * ep_max,
818 M_USB, M_WAITOK | M_ZERO);
819 if (udev->endpoints == NULL) {
824 udev->endpoints = NULL;
827 USB_BUS_LOCK(udev->bus);
828 udev->endpoints_max = ep_max;
829 /* reset any ongoing clear-stall */
830 udev->ep_curr = NULL;
831 USB_BUS_UNLOCK(udev->bus);
833 #if (USB_HAVE_FIXED_IFACE == 0) || (USB_HAVE_FIXED_ENDPOINT == 0)
837 if (cmd == USB_CFG_ALLOC) {
839 USB_BUS_LOCK(udev->bus);
840 udev->endpoints_max = 0;
841 /* reset any ongoing clear-stall */
842 udev->ep_curr = NULL;
843 USB_BUS_UNLOCK(udev->bus);
845 #if (USB_HAVE_FIXED_IFACE == 0)
846 if(udev->ifaces != NULL) {
847 kfree(udev->ifaces, M_USB);
851 #if (USB_HAVE_FIXED_ENDPOINT == 0)
852 if(udev->endpoints != NULL) {
853 kfree(udev->endpoints, M_USB);
854 udev->endpoints = NULL;
857 udev->ifaces_max = 0;
863 /*------------------------------------------------------------------------*
864 * usbd_set_alt_interface_index
866 * This function will select an alternate interface index for the
867 * given interface index. The interface should not be in use when this
868 * function is called. That means there should not be any open USB
869 * transfers. Else an error is returned. If the alternate setting is
870 * already set this function will simply return success. This function
871 * is called in Host mode and Device mode!
876 *------------------------------------------------------------------------*/
878 usbd_set_alt_interface_index(struct usb_device *udev,
879 uint8_t iface_index, uint8_t alt_index)
881 struct usb_interface *iface = usbd_get_iface(udev, iface_index);
885 /* Prevent re-enumeration */
886 do_unlock = usbd_enum_lock(udev);
892 if (iface->alt_index == alt_index) {
894 * Optimise away duplicate setting of
895 * alternate setting in USB Host Mode!
902 * Free all generic FIFOs for this interface, except control
905 usb_fifo_free_wrap(udev, iface_index, 0);
908 err = usb_config_parse(udev, iface_index, alt_index);
912 if (iface->alt_index != alt_index) {
913 /* the alternate setting does not exist */
918 err = usbd_req_set_alt_interface_no(udev, NULL, iface_index,
919 iface->idesc->bAlternateSetting);
923 usbd_enum_unlock(udev);
927 /*------------------------------------------------------------------------*
928 * usbd_set_endpoint_stall
930 * This function is used to make a BULK or INTERRUPT endpoint send
931 * STALL tokens in USB device mode.
936 *------------------------------------------------------------------------*/
938 usbd_set_endpoint_stall(struct usb_device *udev, struct usb_endpoint *ep,
941 struct usb_xfer *xfer;
948 DPRINTF("Cannot find endpoint\n");
950 * Pretend that the clear or set stall request is
951 * successful else some USB host stacks can do
952 * strange things, especially when a control endpoint
957 et = (ep->edesc->bmAttributes & UE_XFERTYPE);
959 if ((et != UE_BULK) &&
960 (et != UE_INTERRUPT)) {
962 * Should not stall control
963 * nor isochronous endpoints.
965 DPRINTF("Invalid endpoint\n");
968 USB_BUS_LOCK(udev->bus);
970 /* store current stall state */
971 was_stalled = ep->is_stalled;
973 /* check for no change */
974 if (was_stalled && do_stall) {
975 /* if the endpoint is already stalled do nothing */
976 USB_BUS_UNLOCK(udev->bus);
977 DPRINTF("No change\n");
980 /* set stalled state */
983 if (do_stall || (!was_stalled)) {
985 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
986 /* lookup the current USB transfer, if any */
987 xfer = ep->endpoint_q[x].curr;
990 * The "xfer_stall" method
991 * will complete the USB
992 * transfer like in case of a
993 * timeout setting the error
994 * code "USB_ERR_STALLED".
996 (udev->bus->methods->xfer_stall) (xfer);
1000 (udev->bus->methods->set_stall) (udev, ep, &do_stall);
1003 ep->toggle_next = 0; /* reset data toggle */
1004 ep->is_stalled = 0; /* clear stalled state */
1006 (udev->bus->methods->clear_stall) (udev, ep);
1008 /* start the current or next transfer, if any */
1009 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
1010 usb_command_wrapper(&ep->endpoint_q[x],
1011 ep->endpoint_q[x].curr);
1014 USB_BUS_UNLOCK(udev->bus);
1018 /*------------------------------------------------------------------------*
1019 * usb_reset_iface_endpoints - used in USB device side mode
1020 *------------------------------------------------------------------------*/
1022 usb_reset_iface_endpoints(struct usb_device *udev, uint8_t iface_index)
1024 struct usb_endpoint *ep;
1025 struct usb_endpoint *ep_end;
1027 ep = udev->endpoints;
1028 ep_end = udev->endpoints + udev->endpoints_max;
1030 for (; ep != ep_end; ep++) {
1032 if ((ep->edesc == NULL) ||
1033 (ep->iface_index != iface_index)) {
1036 /* simulate a clear stall from the peer */
1037 usbd_set_endpoint_stall(udev, ep, 0);
1042 /*------------------------------------------------------------------------*
1043 * usb_detach_device_sub
1045 * This function will try to detach an USB device. If it fails a panic
1048 * Flag values, see "USB_UNCFG_FLAG_XXX".
1049 *------------------------------------------------------------------------*/
1051 usb_detach_device_sub(struct usb_device *udev, device_t *ppdev,
1052 char **ppnpinfo, uint8_t flag)
1061 * NOTE: It is important to clear "*ppdev" before deleting
1062 * the child due to some device methods being called late
1063 * during the delete process !
1067 device_printf(dev, "at %s, port %d, addr %d "
1069 device_get_nameunit(udev->parent_dev),
1070 udev->port_no, udev->address);
1072 if (device_is_attached(dev)) {
1073 if (udev->flags.peer_suspended) {
1074 err = DEVICE_RESUME(dev);
1076 device_printf(dev, "Resume failed\n");
1079 if (device_detach(dev)) {
1083 if (device_delete_child(udev->parent_dev, dev)) {
1088 pnpinfo = *ppnpinfo;
1089 if (pnpinfo != NULL) {
1091 kfree(pnpinfo, M_USBDEV);
1096 /* Detach is not allowed to fail in the USB world */
1097 panic("usb_detach_device_sub: A USB driver would not detach\n");
1100 /*------------------------------------------------------------------------*
1103 * The following function will detach the matching interfaces.
1104 * This function is NULL safe.
1106 * Flag values, see "USB_UNCFG_FLAG_XXX".
1107 *------------------------------------------------------------------------*/
1109 usb_detach_device(struct usb_device *udev, uint8_t iface_index,
1112 struct usb_interface *iface;
1119 DPRINTFN(4, "udev=%p\n", udev);
1122 sx_assert(&udev->enum_sx, SA_LOCKED);
1126 * First detach the child to give the child's detach routine a
1127 * chance to detach the sub-devices in the correct order.
1128 * Then delete the child using "device_delete_child()" which
1129 * will detach all sub-devices from the bottom and upwards!
1131 if (iface_index != USB_IFACE_INDEX_ANY) {
1133 iface_index = i + 1;
1136 iface_index = USB_IFACE_MAX;
1141 for (; i != iface_index; i++) {
1143 iface = usbd_get_iface(udev, i);
1144 if (iface == NULL) {
1145 /* looks like the end of the USB interfaces */
1148 usb_detach_device_sub(udev, &iface->subdev,
1149 &iface->pnpinfo, flag);
1153 /*------------------------------------------------------------------------*
1154 * usb_probe_and_attach_sub
1159 *------------------------------------------------------------------------*/
1161 usb_probe_and_attach_sub(struct usb_device *udev,
1162 struct usb_attach_arg *uaa)
1164 struct usb_interface *iface;
1169 if (iface->parent_iface_index != USB_IFACE_INDEX_ANY) {
1170 /* leave interface alone */
1173 dev = iface->subdev;
1176 /* clean up after module unload */
1178 if (device_is_attached(dev)) {
1179 /* already a device there */
1182 /* clear "iface->subdev" as early as possible */
1184 iface->subdev = NULL;
1186 if (device_delete_child(udev->parent_dev, dev)) {
1189 * Panic here, else one can get a double call
1190 * to device_detach(). USB devices should
1191 * never fail on detach!
1193 panic("device_delete_child() failed\n");
1196 if (uaa->temp_dev == NULL) {
1198 /* create a new child */
1199 uaa->temp_dev = device_add_child(udev->parent_dev, NULL, -1);
1200 if (uaa->temp_dev == NULL) {
1201 device_printf(udev->parent_dev,
1202 "Device creation failed\n");
1203 return (1); /* failure */
1205 device_set_ivars(uaa->temp_dev, uaa);
1206 device_quiet(uaa->temp_dev);
1209 * Set "subdev" before probe and attach so that "devd" gets
1210 * the information it needs.
1212 iface->subdev = uaa->temp_dev;
1214 if (device_probe_and_attach(iface->subdev) == 0) {
1216 * The USB attach arguments are only available during probe
1219 uaa->temp_dev = NULL;
1220 device_set_ivars(iface->subdev, NULL);
1222 if (udev->flags.peer_suspended) {
1223 err = DEVICE_SUSPEND(iface->subdev);
1225 device_printf(iface->subdev, "Suspend failed\n");
1227 return (0); /* success */
1229 /* No USB driver found */
1230 iface->subdev = NULL;
1232 return (1); /* failure */
1235 /*------------------------------------------------------------------------*
1236 * usbd_set_parent_iface
1238 * Using this function will lock the alternate interface setting on an
1239 * interface. It is typically used for multi interface drivers. In USB
1240 * device side mode it is assumed that the alternate interfaces all
1241 * have the same endpoint descriptors. The default parent index value
1242 * is "USB_IFACE_INDEX_ANY". Then the alternate setting value is not
1244 *------------------------------------------------------------------------*/
1246 usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
1247 uint8_t parent_index)
1249 struct usb_interface *iface;
1255 iface = usbd_get_iface(udev, iface_index);
1257 iface->parent_iface_index = parent_index;
1261 usb_init_attach_arg(struct usb_device *udev,
1262 struct usb_attach_arg *uaa)
1264 memset(uaa, 0, sizeof(*uaa));
1267 uaa->usb_mode = udev->flags.usb_mode;
1268 uaa->port = udev->port_no;
1269 uaa->dev_state = UAA_DEV_READY;
1271 uaa->info.idVendor = UGETW(udev->ddesc.idVendor);
1272 uaa->info.idProduct = UGETW(udev->ddesc.idProduct);
1273 uaa->info.bcdDevice = UGETW(udev->ddesc.bcdDevice);
1274 uaa->info.bDeviceClass = udev->ddesc.bDeviceClass;
1275 uaa->info.bDeviceSubClass = udev->ddesc.bDeviceSubClass;
1276 uaa->info.bDeviceProtocol = udev->ddesc.bDeviceProtocol;
1277 uaa->info.bConfigIndex = udev->curr_config_index;
1278 uaa->info.bConfigNum = udev->curr_config_no;
1281 /*------------------------------------------------------------------------*
1282 * usb_probe_and_attach
1284 * This function is called from "uhub_explore_sub()",
1285 * "usb_handle_set_config()" and "usb_handle_request()".
1289 * Else: A control transfer failed
1290 *------------------------------------------------------------------------*/
1292 usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index)
1294 struct usb_attach_arg uaa;
1295 struct usb_interface *iface;
1301 DPRINTF("udev == NULL\n");
1302 return (USB_ERR_INVAL);
1304 /* Prevent re-enumeration */
1305 do_unlock = usbd_enum_lock(udev);
1307 if (udev->curr_config_index == USB_UNCONFIG_INDEX) {
1308 /* do nothing - no configuration has been set */
1311 /* setup USB attach arguments */
1313 usb_init_attach_arg(udev, &uaa);
1316 * If the whole USB device is targeted, invoke the USB event
1319 if (iface_index == USB_IFACE_INDEX_ANY) {
1321 EVENTHANDLER_INVOKE(usb_dev_configured, udev, &uaa);
1323 if (uaa.dev_state != UAA_DEV_READY) {
1324 /* leave device unconfigured */
1325 usb_unconfigure(udev, 0);
1330 /* Check if only one interface should be probed: */
1331 if (iface_index != USB_IFACE_INDEX_ANY) {
1339 /* Do the probe and attach */
1340 for (; i != j; i++) {
1342 iface = usbd_get_iface(udev, i);
1343 if (iface == NULL) {
1345 * Looks like the end of the USB
1348 DPRINTFN(2, "end of interfaces "
1352 if (iface->idesc == NULL) {
1353 /* no interface descriptor */
1358 uaa.info.bInterfaceClass =
1359 iface->idesc->bInterfaceClass;
1360 uaa.info.bInterfaceSubClass =
1361 iface->idesc->bInterfaceSubClass;
1362 uaa.info.bInterfaceProtocol =
1363 iface->idesc->bInterfaceProtocol;
1364 uaa.info.bIfaceIndex = i;
1365 uaa.info.bIfaceNum =
1366 iface->idesc->bInterfaceNumber;
1367 uaa.driver_info = 0; /* reset driver_info */
1369 DPRINTFN(2, "iclass=%u/%u/%u iindex=%u/%u\n",
1370 uaa.info.bInterfaceClass,
1371 uaa.info.bInterfaceSubClass,
1372 uaa.info.bInterfaceProtocol,
1373 uaa.info.bIfaceIndex,
1374 uaa.info.bIfaceNum);
1376 usb_probe_and_attach_sub(udev, &uaa);
1379 * Remove the leftover child, if any, to enforce that
1380 * a new nomatch devd event is generated for the next
1381 * interface if no driver is found:
1383 if (uaa.temp_dev == NULL)
1385 if (device_delete_child(udev->parent_dev, uaa.temp_dev))
1386 DPRINTFN(0, "device delete child failed\n");
1387 uaa.temp_dev = NULL;
1391 usbd_enum_unlock(udev);
1395 /*------------------------------------------------------------------------*
1396 * usb_suspend_resume_sub
1398 * This function is called when the suspend or resume methods should
1399 * be executed on an USB device.
1400 *------------------------------------------------------------------------*/
1402 usb_suspend_resume_sub(struct usb_device *udev, device_t dev, uint8_t do_suspend)
1409 if (!device_is_attached(dev)) {
1413 err = DEVICE_SUSPEND(dev);
1415 err = DEVICE_RESUME(dev);
1418 device_printf(dev, "%s failed\n",
1419 do_suspend ? "Suspend" : "Resume");
1423 /*------------------------------------------------------------------------*
1424 * usb_suspend_resume
1426 * The following function will suspend or resume the USB device.
1431 *------------------------------------------------------------------------*/
1433 usb_suspend_resume(struct usb_device *udev, uint8_t do_suspend)
1435 struct usb_interface *iface;
1442 DPRINTFN(4, "udev=%p do_suspend=%d\n", udev, do_suspend);
1445 sx_assert(&udev->sr_sx, SA_LOCKED);
1448 USB_BUS_LOCK(udev->bus);
1449 /* filter the suspend events */
1450 if (udev->flags.peer_suspended == do_suspend) {
1451 USB_BUS_UNLOCK(udev->bus);
1455 udev->flags.peer_suspended = do_suspend;
1456 USB_BUS_UNLOCK(udev->bus);
1458 /* do the suspend or resume */
1460 for (i = 0; i != USB_IFACE_MAX; i++) {
1462 iface = usbd_get_iface(udev, i);
1463 if (iface == NULL) {
1464 /* looks like the end of the USB interfaces */
1467 usb_suspend_resume_sub(udev, iface->subdev, do_suspend);
1472 /*------------------------------------------------------------------------*
1473 * usbd_clear_stall_proc
1475 * This function performs generic USB clear stall operations.
1476 *------------------------------------------------------------------------*/
1478 usbd_clear_stall_proc(struct usb_proc_msg *_pm)
1480 struct usb_clear_stall_msg *pm = (void *)_pm;
1481 struct usb_device *udev = pm->udev;
1484 USB_BUS_UNLOCK(udev->bus);
1485 lockmgr(&udev->device_lock, LK_EXCLUSIVE);
1487 /* Start clear stall callback */
1488 usbd_transfer_start(udev->ctrl_xfer[1]);
1491 lockmgr(&udev->device_lock, LK_RELEASE);
1492 USB_BUS_LOCK(udev->bus);
1495 /*------------------------------------------------------------------------*
1498 * This function allocates a new USB device. This function is called
1499 * when a new device has been put in the powered state, but not yet in
1500 * the addressed state. Get initial descriptor, set the address, get
1501 * full descriptor and get strings.
1506 *------------------------------------------------------------------------*/
1508 usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
1509 struct usb_device *parent_hub, uint8_t depth, uint8_t port_index,
1510 uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode)
1512 struct usb_attach_arg uaa;
1513 struct usb_device *udev;
1514 struct usb_device *adev;
1515 struct usb_device *hub;
1516 uint8_t *scratch_ptr;
1518 uint8_t device_index;
1519 uint8_t config_index;
1520 uint8_t config_quirk;
1521 uint8_t set_config_failed;
1524 DPRINTF("parent_dev=%p, bus=%p, parent_hub=%p, depth=%u, "
1525 "port_index=%u, port_no=%u, speed=%u, usb_mode=%u\n",
1526 parent_dev, bus, parent_hub, depth, port_index, port_no,
1530 * Find an unused device index. In USB Host mode this is the
1531 * same as the device address.
1533 * Device index zero is not used and device index 1 should
1534 * always be the root hub.
1536 for (device_index = USB_ROOT_HUB_ADDR;
1537 (device_index != bus->devices_max) &&
1538 (bus->devices[device_index] != NULL);
1539 device_index++) /* nop */;
1541 if (device_index == bus->devices_max) {
1542 device_printf(bus->bdev,
1543 "No free USB device index for new device\n");
1548 device_printf(bus->bdev,
1549 "Invalid device depth\n");
1552 udev = kmalloc(sizeof(*udev), M_USB, M_WAITOK | M_ZERO);
1558 /* initialise our SX-lock */
1559 sx_init_flags(&udev->ctrl_sx, "USB device SX lock", SX_DUPOK);
1560 /* initialise our SX-lock */
1561 sx_init_flags(&udev->enum_sx, "USB config SX lock", SX_DUPOK);
1562 sx_init_flags(&udev->sr_sx, "USB suspend and resume SX lock", SX_NOWITNESS);
1564 lockinit(&udev->enum_lock, "USB config SX lock", 0, LK_CANRECURSE);
1565 lockinit(&udev->sr_lock, "USB suspend and resume SX lock", 0, 0);
1567 cv_init(&udev->ctrlreq_cv, "WCTRL");
1568 cv_init(&udev->ref_cv, "UGONE");
1570 /* initialise our mutex */
1571 lockinit(&udev->device_lock, "USB device mutex", 0, 0);
1573 /* initialise generic clear stall */
1574 udev->cs_msg[0].hdr.pm_callback = &usbd_clear_stall_proc;
1575 udev->cs_msg[0].udev = udev;
1576 udev->cs_msg[1].hdr.pm_callback = &usbd_clear_stall_proc;
1577 udev->cs_msg[1].udev = udev;
1579 /* initialise some USB device fields */
1580 udev->parent_hub = parent_hub;
1581 udev->parent_dev = parent_dev;
1582 udev->port_index = port_index;
1583 udev->port_no = port_no;
1584 udev->depth = depth;
1586 udev->address = USB_START_ADDR; /* default value */
1587 udev->plugtime = (usb_ticks_t)ticks;
1589 * We need to force the power mode to "on" because there are plenty
1590 * of USB devices out there that do not work very well with
1591 * automatic suspend and resume!
1593 udev->power_mode = usbd_filter_power_mode(udev, USB_POWER_MODE_ON);
1594 udev->pwr_save.last_xfer_time = ticks;
1595 /* we are not ready yet */
1598 /* set up default endpoint descriptor */
1599 udev->ctrl_ep_desc.bLength = sizeof(udev->ctrl_ep_desc);
1600 udev->ctrl_ep_desc.bDescriptorType = UDESC_ENDPOINT;
1601 udev->ctrl_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
1602 udev->ctrl_ep_desc.bmAttributes = UE_CONTROL;
1603 udev->ctrl_ep_desc.wMaxPacketSize[0] = USB_MAX_IPACKET;
1604 udev->ctrl_ep_desc.wMaxPacketSize[1] = 0;
1605 udev->ctrl_ep_desc.bInterval = 0;
1607 /* set up default endpoint companion descriptor */
1608 udev->ctrl_ep_comp_desc.bLength = sizeof(udev->ctrl_ep_comp_desc);
1609 udev->ctrl_ep_comp_desc.bDescriptorType = UDESC_ENDPOINT_SS_COMP;
1611 udev->ddesc.bMaxPacketSize = USB_MAX_IPACKET;
1613 udev->speed = speed;
1614 udev->flags.usb_mode = mode;
1616 /* search for our High Speed USB HUB, if any */
1619 hub = udev->parent_hub;
1622 if (hub->speed == USB_SPEED_HIGH) {
1623 udev->hs_hub_addr = hub->address;
1624 udev->parent_hs_hub = hub;
1625 udev->hs_port_no = adev->port_no;
1629 hub = hub->parent_hub;
1632 /* init the default endpoint */
1633 usb_init_endpoint(udev, 0,
1634 &udev->ctrl_ep_desc,
1635 &udev->ctrl_ep_comp_desc,
1638 /* set device index */
1639 udev->device_index = device_index;
1642 /* Create ugen name */
1643 ksnprintf(udev->ugen_name, sizeof(udev->ugen_name),
1644 USB_GENERIC_NAME "%u.%u", device_get_unit(bus->bdev),
1646 LIST_INIT(&udev->pd_list);
1648 /* Create the control endpoint device */
1649 udev->ctrl_dev = usb_make_dev(udev, NULL, 0, 0,
1650 FREAD|FWRITE, UID_ROOT, GID_OPERATOR, 0600);
1652 /* Create a link from /dev/ugenX.X to the default endpoint */
1653 if (udev->ctrl_dev != NULL)
1654 make_dev_alias(udev->ctrl_dev->cdev, "%s", udev->ugen_name);
1656 /* Initialise device */
1657 if (bus->methods->device_init != NULL) {
1658 err = (bus->methods->device_init) (udev);
1660 DPRINTFN(0, "device init %d failed "
1661 "(%s, ignored)\n", device_index,
1666 /* set powered device state after device init is complete */
1667 usb_set_device_state(udev, USB_STATE_POWERED);
1669 if (udev->flags.usb_mode == USB_MODE_HOST) {
1671 err = usbd_req_set_address(udev, NULL, device_index);
1674 * This is the new USB device address from now on, if
1675 * the set address request didn't set it already.
1677 if (udev->address == USB_START_ADDR)
1678 udev->address = device_index;
1681 * We ignore any set-address errors, hence there are
1682 * buggy USB devices out there that actually receive
1683 * the SETUP PID, but manage to set the address before
1684 * the STATUS stage is ACK'ed. If the device responds
1685 * to the subsequent get-descriptor at the new
1686 * address, then we know that the set-address command
1690 DPRINTFN(0, "set address %d failed "
1691 "(%s, ignored)\n", udev->address,
1695 /* We are not self powered */
1696 udev->flags.self_powered = 0;
1698 /* Set unconfigured state */
1699 udev->curr_config_no = USB_UNCONFIG_NO;
1700 udev->curr_config_index = USB_UNCONFIG_INDEX;
1702 /* Setup USB descriptors */
1703 err = (usb_temp_setup_by_index_p) (udev, usb_template);
1705 DPRINTFN(0, "setting up USB template failed maybe the USB "
1706 "template module has not been loaded\n");
1710 usb_set_device_state(udev, USB_STATE_ADDRESSED);
1712 /* setup the device descriptor and the initial "wMaxPacketSize" */
1713 err = usbd_setup_device_desc(udev, NULL);
1716 /* try to enumerate two more times */
1717 err = usbd_req_re_enumerate(udev, NULL);
1719 err = usbd_req_re_enumerate(udev, NULL);
1727 * Setup temporary USB attach args so that we can figure out some
1728 * basic quirks for this device.
1730 usb_init_attach_arg(udev, &uaa);
1732 if (usb_test_quirk(&uaa, UQ_BUS_POWERED)) {
1733 udev->flags.uq_bus_powered = 1;
1735 if (usb_test_quirk(&uaa, UQ_NO_STRINGS)) {
1736 udev->flags.no_strings = 1;
1739 * Workaround for buggy USB devices.
1741 * It appears that some string-less USB chips will crash and
1742 * disappear if any attempts are made to read any string
1745 * Try to detect such chips by checking the strings in the USB
1746 * device descriptor. If no strings are present there we
1747 * simply disable all USB strings.
1750 /* Protect scratch area */
1751 do_unlock = usbd_enum_lock(udev);
1753 scratch_ptr = udev->scratch.data;
1755 if (udev->ddesc.iManufacturer ||
1756 udev->ddesc.iProduct ||
1757 udev->ddesc.iSerialNumber) {
1758 /* read out the language ID string */
1759 err = usbd_req_get_string_desc(udev, NULL,
1760 (char *)scratch_ptr, 4, 0, USB_LANGUAGE_TABLE);
1762 err = USB_ERR_INVAL;
1765 if (err || (scratch_ptr[0] < 4)) {
1766 udev->flags.no_strings = 1;
1773 /* load preferred value and mask */
1775 mask = usb_lang_mask;
1777 /* align length correctly */
1778 scratch_ptr[0] &= ~1U;
1780 /* fix compiler warning */
1783 /* search for preferred language */
1784 for (x = 2; (x < scratch_ptr[0]); x += 2) {
1785 langid = UGETW(scratch_ptr + x);
1786 if ((langid & mask) == pref)
1789 if (x >= scratch_ptr[0]) {
1790 /* pick the first language as the default */
1791 DPRINTFN(1, "Using first language\n");
1792 langid = UGETW(scratch_ptr + 2);
1795 DPRINTFN(1, "Language selected: 0x%04x\n", langid);
1796 udev->langid = langid;
1800 usbd_enum_unlock(udev);
1802 /* assume 100mA bus powered for now. Changed when configured. */
1803 udev->power = USB_MIN_POWER;
1804 /* fetch the vendor and product strings from the device */
1805 usbd_set_device_strings(udev);
1807 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
1808 /* USB device mode setup is complete */
1814 * Most USB devices should attach to config index 0 by
1817 if (usb_test_quirk(&uaa, UQ_CFG_INDEX_0)) {
1820 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_1)) {
1823 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_2)) {
1826 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_3)) {
1829 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_4)) {
1837 set_config_failed = 0;
1840 DPRINTF("setting config %u\n", config_index);
1842 /* get the USB device configured */
1843 err = usbd_set_config_index(udev, config_index);
1845 if (udev->ddesc.bNumConfigurations != 0) {
1846 if (!set_config_failed) {
1847 set_config_failed = 1;
1848 /* XXX try to re-enumerate the device */
1849 err = usbd_req_re_enumerate(udev, NULL);
1851 goto repeat_set_config;
1853 DPRINTFN(0, "Failure selecting configuration index %u:"
1854 "%s, port %u, addr %u (ignored)\n",
1855 config_index, usbd_errstr(err), udev->port_no,
1859 * Some USB devices do not have any configurations. Ignore any
1860 * set config failures!
1865 if (!config_quirk && config_index + 1 < udev->ddesc.bNumConfigurations) {
1866 if ((udev->cdesc->bNumInterface < 2) &&
1867 usbd_get_no_descriptors(udev->cdesc, UDESC_ENDPOINT) == 0) {
1868 DPRINTFN(0, "Found no endpoints, trying next config\n");
1870 goto repeat_set_config;
1872 #if USB_HAVE_MSCTEST
1873 if (config_index == 0) {
1875 * Try to figure out if we have an
1876 * auto-install disk there:
1878 if (usb_iface_is_cdrom(udev, 0)) {
1879 DPRINTFN(0, "Found possible auto-install "
1880 "disk (trying next config)\n");
1882 goto repeat_set_config;
1887 #if USB_HAVE_MSCTEST
1888 if (set_config_failed == 0 && config_index == 0 &&
1889 usb_test_quirk(&uaa, UQ_MSC_NO_SYNC_CACHE) == 0 &&
1890 usb_test_quirk(&uaa, UQ_MSC_NO_GETMAXLUN) == 0) {
1893 * Try to figure out if there are any MSC quirks we
1894 * should apply automatically:
1896 err = usb_msc_auto_quirk(udev, 0);
1899 set_config_failed = 1;
1900 goto repeat_set_config;
1906 DPRINTF("new dev (addr %d), udev=%p, parent_hub=%p\n",
1907 udev->address, udev, udev->parent_hub);
1909 /* register our device - we are ready */
1910 usb_bus_port_set_device(bus, parent_hub ?
1911 parent_hub->hub->ports + port_index : NULL, udev, device_index);
1914 /* Symlink the ugen device name */
1915 udev->ugen_symlink = usb_alloc_symlink(udev->ugen_name);
1917 /* Announce device */
1918 kprintf("%s: <%s> at %s\n", udev->ugen_name,
1919 usb_get_manufacturer(udev),
1920 device_get_nameunit(udev->bus->bdev));
1924 usb_notify_addq("ATTACH", udev);
1929 * Free USB device and all subdevices, if any.
1931 usb_free_device(udev, 0);
1938 struct usb_fs_privdata *
1939 usb_make_dev(struct usb_device *udev, const char *devname, int ep,
1940 int fi, int rwmode, uid_t uid, gid_t gid, int mode)
1942 struct usb_fs_privdata* pd;
1945 /* Store information to locate ourselves again later */
1946 pd = kmalloc(sizeof(struct usb_fs_privdata), M_USBDEV,
1948 pd->bus_index = device_get_unit(udev->bus->bdev);
1949 pd->dev_index = udev->device_index;
1951 pd->fifo_index = fi;
1954 /* Now, create the device itself */
1955 if (devname == NULL) {
1957 ksnprintf(buffer, sizeof(buffer), USB_DEVICE_DIR "/%u.%u.%u",
1958 pd->bus_index, pd->dev_index, pd->ep_addr);
1961 pd->cdev = make_dev(&usb_ops, 0, uid, gid, mode, "%s", devname);
1963 if (pd->cdev == NULL) {
1964 DPRINTFN(0, "Failed to create device %s\n", devname);
1965 kfree(pd, M_USBDEV);
1969 /* XXX setting si_drv1 and creating the device is not atomic! */
1970 pd->cdev->si_drv1 = pd;
1976 usb_destroy_dev(struct usb_fs_privdata *pd)
1981 destroy_dev(pd->cdev);
1983 kfree(pd, M_USBDEV);
1987 usb_cdev_create(struct usb_device *udev)
1989 struct usb_config_descriptor *cd;
1990 struct usb_endpoint_descriptor *ed;
1991 struct usb_descriptor *desc;
1992 struct usb_fs_privdata* pd;
1993 int inmode, outmode, inmask, outmask, mode;
1996 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("stale cdev entries"));
1998 DPRINTFN(2, "Creating device nodes\n");
2000 if (usbd_get_mode(udev) == USB_MODE_DEVICE) {
2003 } else { /* USB_MODE_HOST */
2013 * Collect all used endpoint numbers instead of just
2014 * generating 16 static endpoints.
2016 cd = usbd_get_config_descriptor(udev);
2017 while ((desc = usb_desc_foreach(cd, desc))) {
2018 /* filter out all endpoint descriptors */
2019 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
2020 (desc->bLength >= sizeof(*ed))) {
2021 ed = (struct usb_endpoint_descriptor *)desc;
2024 ep = ed->bEndpointAddress;
2025 if (UE_GET_DIR(ep) == UE_DIR_OUT)
2026 outmask |= 1 << UE_GET_ADDR(ep);
2028 inmask |= 1 << UE_GET_ADDR(ep);
2032 /* Create all available endpoints except EP0 */
2033 for (ep = 1; ep < 16; ep++) {
2034 mode = (inmask & (1 << ep)) ? inmode : 0;
2035 mode |= (outmask & (1 << ep)) ? outmode : 0;
2037 continue; /* no IN or OUT endpoint */
2039 pd = usb_make_dev(udev, NULL, ep, 0,
2040 mode, UID_ROOT, GID_OPERATOR, 0600);
2043 LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next);
2048 usb_cdev_free(struct usb_device *udev)
2050 struct usb_fs_privdata* pd;
2052 DPRINTFN(2, "Freeing device nodes\n");
2054 while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) {
2055 KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt"));
2057 LIST_REMOVE(pd, pd_next);
2059 usb_destroy_dev(pd);
2064 /*------------------------------------------------------------------------*
2067 * This function is NULL safe and will free an USB device and its
2068 * children devices, if any.
2070 * Flag values: Reserved, set to zero.
2071 *------------------------------------------------------------------------*/
2073 usb_free_device(struct usb_device *udev, uint8_t flag)
2075 struct usb_bus *bus;
2078 return; /* already freed */
2080 DPRINTFN(4, "udev=%p port=%d\n", udev, udev->port_no);
2083 usb_set_device_state(udev, USB_STATE_DETACHED);
2086 usb_notify_addq("DETACH", udev);
2090 kprintf("%s: <%s> at %s (disconnected)\n", udev->ugen_name,
2091 usb_get_manufacturer(udev), device_get_nameunit(bus->bdev));
2093 /* Destroy UGEN symlink, if any */
2094 if (udev->ugen_symlink) {
2095 usb_free_symlink(udev->ugen_symlink);
2096 udev->ugen_symlink = NULL;
2100 * Unregister our device first which will prevent any further
2103 usb_bus_port_set_device(bus, udev->parent_hub ?
2104 udev->parent_hub->hub->ports + udev->port_index : NULL,
2105 NULL, USB_ROOT_HUB_ADDR);
2108 /* wait for all pending references to go away: */
2109 lockmgr(&usb_ref_lock, LK_EXCLUSIVE);
2111 while (udev->refcount != 0) {
2112 cv_wait(&udev->ref_cv, &usb_ref_lock);
2114 lockmgr(&usb_ref_lock, LK_RELEASE);
2116 usb_destroy_dev(udev->ctrl_dev);
2119 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
2120 /* stop receiving any control transfers (Device Side Mode) */
2121 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2124 /* the following will get the device unconfigured in software */
2125 usb_unconfigure(udev, USB_UNCFG_FLAG_FREE_EP0);
2127 /* unsetup any leftover default USB transfers */
2128 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2130 /* template unsetup, if any */
2131 (usb_temp_unsetup_p) (udev);
2134 * Make sure that our clear-stall messages are not queued
2137 USB_BUS_LOCK(udev->bus);
2138 usb_proc_mwait(USB_BUS_NON_GIANT_PROC(udev->bus),
2139 &udev->cs_msg[0], &udev->cs_msg[1]);
2140 USB_BUS_UNLOCK(udev->bus);
2142 lockuninit(&udev->enum_lock);
2143 lockuninit(&udev->sr_lock);
2145 cv_destroy(&udev->ctrlreq_cv);
2146 cv_destroy(&udev->ref_cv);
2148 lockuninit(&udev->device_lock);
2150 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("leaked cdev entries"));
2153 /* Uninitialise device */
2154 if (bus->methods->device_uninit != NULL)
2155 (bus->methods->device_uninit) (udev);
2159 kfree(udev->serial, M_USB);
2160 if(udev->manufacturer)
2161 kfree(udev->manufacturer, M_USB);
2163 kfree(udev->product, M_USB);
2167 /*------------------------------------------------------------------------*
2170 * This function is the safe way to get the USB interface structure
2171 * pointer by interface index.
2174 * NULL: Interface not present.
2175 * Else: Pointer to USB interface structure.
2176 *------------------------------------------------------------------------*/
2177 struct usb_interface *
2178 usbd_get_iface(struct usb_device *udev, uint8_t iface_index)
2180 struct usb_interface *iface = udev->ifaces + iface_index;
2182 if (iface_index >= udev->ifaces_max)
2187 /*------------------------------------------------------------------------*
2188 * usbd_find_descriptor
2190 * This function will lookup the first descriptor that matches the
2191 * criteria given by the arguments "type" and "subtype". Descriptors
2192 * will only be searched within the interface having the index
2193 * "iface_index". If the "id" argument points to an USB descriptor,
2194 * it will be skipped before the search is started. This allows
2195 * searching for multiple descriptors using the same criteria. Else
2196 * the search is started after the interface descriptor.
2199 * NULL: End of descriptors
2200 * Else: A descriptor matching the criteria
2201 *------------------------------------------------------------------------*/
2203 usbd_find_descriptor(struct usb_device *udev, void *id, uint8_t iface_index,
2204 uint8_t type, uint8_t type_mask,
2205 uint8_t subtype, uint8_t subtype_mask)
2207 struct usb_descriptor *desc;
2208 struct usb_config_descriptor *cd;
2209 struct usb_interface *iface;
2211 cd = usbd_get_config_descriptor(udev);
2216 iface = usbd_get_iface(udev, iface_index);
2217 if (iface == NULL) {
2220 id = usbd_get_interface_descriptor(iface);
2227 while ((desc = usb_desc_foreach(cd, desc))) {
2229 if (desc->bDescriptorType == UDESC_INTERFACE) {
2232 if (((desc->bDescriptorType & type_mask) == type) &&
2233 ((desc->bDescriptorSubtype & subtype_mask) == subtype)) {
2240 /*------------------------------------------------------------------------*
2243 * This function will dump information from the device descriptor
2244 * belonging to the USB device pointed to by "udev", to the string
2245 * pointed to by "dst_ptr" having a maximum length of "dst_len" bytes
2246 * including the terminating zero.
2247 *------------------------------------------------------------------------*/
2249 usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len)
2251 struct usb_device_descriptor *udd = &udev->ddesc;
2255 bcdUSB = UGETW(udd->bcdUSB);
2256 bcdDevice = UGETW(udd->bcdDevice);
2258 if (udd->bDeviceClass != 0xFF) {
2259 ksnprintf(dst_ptr, dst_len, "%s %s, class %d/%d, rev %x.%02x/"
2261 usb_get_manufacturer(udev),
2262 usb_get_product(udev),
2263 udd->bDeviceClass, udd->bDeviceSubClass,
2264 (bcdUSB >> 8), bcdUSB & 0xFF,
2265 (bcdDevice >> 8), bcdDevice & 0xFF,
2268 ksnprintf(dst_ptr, dst_len, "%s %s, rev %x.%02x/"
2270 usb_get_manufacturer(udev),
2271 usb_get_product(udev),
2272 (bcdUSB >> 8), bcdUSB & 0xFF,
2273 (bcdDevice >> 8), bcdDevice & 0xFF,
2280 * Descriptions of of known vendors and devices ("products").
2282 struct usb_knowndev {
2286 const char *vendorname;
2287 const char *productname;
2290 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
2292 #include "usbdevs.h"
2293 #include "usbdevs_data.h"
2294 #endif /* USB_VERBOSE */
2297 usbd_set_device_strings(struct usb_device *udev)
2299 struct usb_device_descriptor *udd = &udev->ddesc;
2301 const struct usb_knowndev *kdp;
2306 uint16_t product_id;
2309 /* Protect scratch area */
2310 do_unlock = usbd_enum_lock(udev);
2312 temp_ptr = (char *)udev->scratch.data;
2313 temp_size = sizeof(udev->scratch.data);
2315 vendor_id = UGETW(udd->idVendor);
2316 product_id = UGETW(udd->idProduct);
2318 /* get serial number string */
2319 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2320 udev->ddesc.iSerialNumber);
2321 udev->serial = kstrdup(temp_ptr, M_USB);
2323 /* get manufacturer string */
2324 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2325 udev->ddesc.iManufacturer);
2326 usb_trim_spaces(temp_ptr);
2327 if (temp_ptr[0] != '\0')
2328 udev->manufacturer = kstrdup(temp_ptr, M_USB);
2330 /* get product string */
2331 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2332 udev->ddesc.iProduct);
2333 usb_trim_spaces(temp_ptr);
2334 if (temp_ptr[0] != '\0')
2335 udev->product = kstrdup(temp_ptr, M_USB);
2338 if (udev->manufacturer == NULL || udev->product == NULL) {
2339 for (kdp = usb_knowndevs; kdp->vendorname != NULL; kdp++) {
2340 if (kdp->vendor == vendor_id &&
2341 (kdp->product == product_id ||
2342 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
2345 if (kdp->vendorname != NULL) {
2346 /* XXX should use pointer to knowndevs string */
2347 if (udev->manufacturer == NULL) {
2348 udev->manufacturer = kstrdup(kdp->vendorname,
2351 if (udev->product == NULL &&
2352 (kdp->flags & USB_KNOWNDEV_NOPROD) == 0) {
2353 udev->product = kstrdup(kdp->productname,
2359 /* Provide default strings if none were found */
2360 if (udev->manufacturer == NULL) {
2361 ksnprintf(temp_ptr, temp_size, "vendor 0x%04x", vendor_id);
2362 udev->manufacturer = kstrdup(temp_ptr, M_USB);
2364 if (udev->product == NULL) {
2365 ksnprintf(temp_ptr, temp_size, "product 0x%04x", product_id);
2366 udev->product = kstrdup(temp_ptr, M_USB);
2370 usbd_enum_unlock(udev);
2378 usbd_get_mode(struct usb_device *udev)
2380 return (udev->flags.usb_mode);
2385 * See: USB_SPEED_XXX
2388 usbd_get_speed(struct usb_device *udev)
2390 return (udev->speed);
2394 usbd_get_isoc_fps(struct usb_device *udev)
2397 switch (udev->speed) {
2399 case USB_SPEED_FULL:
2406 struct usb_device_descriptor *
2407 usbd_get_device_descriptor(struct usb_device *udev)
2410 return (NULL); /* be NULL safe */
2411 return (&udev->ddesc);
2414 struct usb_config_descriptor *
2415 usbd_get_config_descriptor(struct usb_device *udev)
2418 return (NULL); /* be NULL safe */
2419 return (udev->cdesc);
2422 /*------------------------------------------------------------------------*
2423 * usb_test_quirk - test a device for a given quirk
2426 * 0: The USB device does not have the given quirk.
2427 * Else: The USB device has the given quirk.
2428 *------------------------------------------------------------------------*/
2430 usb_test_quirk(const struct usb_attach_arg *uaa, uint16_t quirk)
2435 if (quirk == UQ_NONE)
2438 /* search the automatic per device quirks first */
2440 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2441 if (uaa->device->autoQuirk[x] == quirk)
2445 /* search global quirk table, if any */
2447 found = (usb_test_quirk_p) (&uaa->info, quirk);
2452 struct usb_interface_descriptor *
2453 usbd_get_interface_descriptor(struct usb_interface *iface)
2456 return (NULL); /* be NULL safe */
2457 return (iface->idesc);
2461 usbd_get_interface_altindex(struct usb_interface *iface)
2463 return (iface->alt_index);
2467 usbd_get_bus_index(struct usb_device *udev)
2469 return ((uint8_t)device_get_unit(udev->bus->bdev));
2473 usbd_get_device_index(struct usb_device *udev)
2475 return (udev->device_index);
2480 usb_notify_addq(const char *type, struct usb_device *udev)
2482 struct usb_interface *iface;
2486 /* announce the device */
2487 sb = sbuf_new(NULL, NULL, 4096, SBUF_AUTOEXTEND);
2496 "devsubclass=0x%02x "
2509 UGETW(udev->ddesc.idVendor),
2510 UGETW(udev->ddesc.idProduct),
2511 udev->ddesc.bDeviceClass,
2512 udev->ddesc.bDeviceSubClass,
2513 usb_get_serial(udev),
2514 UGETW(udev->ddesc.bcdDevice),
2515 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2518 , udev->parent_hub != NULL ?
2519 udev->parent_hub->ugen_name :
2520 device_get_nameunit(device_get_parent(udev->bus->bdev))
2524 devctl_notify("USB", "DEVICE", type, sbuf_data(sb));
2527 /* announce each interface */
2528 for (i = 0; i < USB_IFACE_MAX; i++) {
2529 iface = usbd_get_iface(udev, i);
2531 break; /* end of interfaces */
2532 if (iface->idesc == NULL)
2533 continue; /* no interface descriptor */
2536 sb = sbuf_new(NULL, NULL, 4096, SBUF_AUTOEXTEND);
2545 "devsubclass=0x%02x "
2552 "intsubclass=0x%02x "
2553 "intprotocol=0x%02x",
2558 UGETW(udev->ddesc.idVendor),
2559 UGETW(udev->ddesc.idProduct),
2560 udev->ddesc.bDeviceClass,
2561 udev->ddesc.bDeviceSubClass,
2562 usb_get_serial(udev),
2563 UGETW(udev->ddesc.bcdDevice),
2564 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2565 iface->idesc->bInterfaceNumber,
2566 iface->idesc->bNumEndpoints,
2567 iface->idesc->bInterfaceClass,
2568 iface->idesc->bInterfaceSubClass,
2569 iface->idesc->bInterfaceProtocol);
2571 devctl_notify("USB", "INTERFACE", type, sbuf_data(sb));
2578 /*------------------------------------------------------------------------*
2579 * usb_fifo_free_wrap
2581 * This function will free the FIFOs.
2583 * Description of "flag" argument: If the USB_UNCFG_FLAG_FREE_EP0 flag
2584 * is set and "iface_index" is set to "USB_IFACE_INDEX_ANY", we free
2585 * all FIFOs. If the USB_UNCFG_FLAG_FREE_EP0 flag is not set and
2586 * "iface_index" is set to "USB_IFACE_INDEX_ANY", we free all non
2587 * control endpoint FIFOs. If "iface_index" is not set to
2588 * "USB_IFACE_INDEX_ANY" the flag has no effect.
2589 *------------------------------------------------------------------------*/
2591 usb_fifo_free_wrap(struct usb_device *udev,
2592 uint8_t iface_index, uint8_t flag)
2598 * Free any USB FIFOs on the given interface:
2600 for (i = 0; i != USB_FIFO_MAX; i++) {
2605 /* Check if the interface index matches */
2606 if (iface_index == f->iface_index) {
2607 if (f->methods != &usb_ugen_methods) {
2609 * Don't free any non-generic FIFOs in
2614 if ((f->dev_ep_index == 0) &&
2615 (f->fs_xfer == NULL)) {
2616 /* no need to free this FIFO */
2619 } else if (iface_index == USB_IFACE_INDEX_ANY) {
2620 if ((f->methods == &usb_ugen_methods) &&
2621 (f->dev_ep_index == 0) &&
2622 (!(flag & USB_UNCFG_FLAG_FREE_EP0)) &&
2623 (f->fs_xfer == NULL)) {
2624 /* no need to free this FIFO */
2628 /* no need to free this FIFO */
2631 /* free this FIFO */
2637 /*------------------------------------------------------------------------*
2638 * usb_peer_can_wakeup
2641 * 0: Peer cannot do resume signalling.
2642 * Else: Peer can do resume signalling.
2643 *------------------------------------------------------------------------*/
2645 usb_peer_can_wakeup(struct usb_device *udev)
2647 const struct usb_config_descriptor *cdp;
2650 if ((cdp != NULL) && (udev->flags.usb_mode == USB_MODE_HOST)) {
2651 return (cdp->bmAttributes & UC_REMOTE_WAKEUP);
2653 return (0); /* not supported */
2657 usb_set_device_state(struct usb_device *udev, enum usb_dev_state state)
2660 KASSERT(state < USB_STATE_MAX, ("invalid udev state"));
2662 DPRINTF("udev %p state %s -> %s\n", udev,
2663 usb_statestr(udev->state), usb_statestr(state));
2664 udev->state = state;
2666 if (udev->bus->methods->device_state_change != NULL)
2667 (udev->bus->methods->device_state_change) (udev);
2671 usb_get_device_state(struct usb_device *udev)
2674 return (USB_STATE_DETACHED);
2675 return (udev->state);
2679 usbd_device_attached(struct usb_device *udev)
2681 return (udev->state > USB_STATE_DETACHED);
2685 * The following function locks enumerating the given USB device. If
2686 * the lock is already grabbed this function returns zero. Else a
2687 * non-zero value is returned.
2690 usbd_enum_lock(struct usb_device *udev)
2692 if (lockstatus(&udev->enum_lock, NULL)==LK_EXCLUSIVE)
2695 lockmgr(&udev->enum_lock, LK_EXCLUSIVE);
2696 lockmgr(&udev->sr_lock, LK_EXCLUSIVE);
2698 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2699 * are locked before locking Giant. Else the lock can be
2700 * locked multiple times.
2708 /* The following function unlocks enumerating the given USB device. */
2711 usbd_enum_unlock(struct usb_device *udev)
2716 lockmgr(&udev->enum_lock, LK_RELEASE);
2717 lockmgr(&udev->sr_lock, LK_RELEASE);
2720 /* The following function locks suspend and resume. */
2723 usbd_sr_lock(struct usb_device *udev)
2725 lockmgr(&udev->sr_lock, LK_EXCLUSIVE);
2727 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2728 * are locked before locking Giant. Else the lock can be
2729 * locked multiple times.
2736 /* The following function unlocks suspend and resume. */
2739 usbd_sr_unlock(struct usb_device *udev)
2744 lockmgr(&udev->sr_lock, LK_RELEASE);
2748 * The following function checks the enumerating lock for the given
2753 usbd_enum_is_locked(struct usb_device *udev)
2755 /* XXX: Make sure that we return a correct value here */
2756 return (lockowned(&udev->enum_lock));
2760 * The following function is used to set the per-interface specific
2761 * plug and play information. The string referred to by the pnpinfo
2762 * argument can safely be freed after calling this function. The
2763 * pnpinfo of an interface will be reset at device detach or when
2764 * passing a NULL argument to this function. This function
2765 * returns zero on success, else a USB_ERR_XXX failure code.
2769 usbd_set_pnpinfo(struct usb_device *udev, uint8_t iface_index, const char *pnpinfo)
2771 struct usb_interface *iface;
2773 iface = usbd_get_iface(udev, iface_index);
2775 return (USB_ERR_INVAL);
2777 if (iface->pnpinfo != NULL) {
2778 kfree(iface->pnpinfo, M_USBDEV);
2779 iface->pnpinfo = NULL;
2782 if (pnpinfo == NULL || pnpinfo[0] == 0)
2783 return (0); /* success */
2785 iface->pnpinfo = kstrdup(pnpinfo, M_USBDEV);
2786 if (iface->pnpinfo == NULL)
2787 return (USB_ERR_NOMEM);
2789 return (0); /* success */
2793 usbd_add_dynamic_quirk(struct usb_device *udev, uint16_t quirk)
2797 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2798 if (udev->autoQuirk[x] == 0 ||
2799 udev->autoQuirk[x] == quirk) {
2800 udev->autoQuirk[x] = quirk;
2801 return (0); /* success */
2804 return (USB_ERR_NOMEM);
2808 * The following function is used to select the endpoint mode. It
2809 * should not be called outside enumeration context.
2813 usbd_set_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep,
2819 /* Prevent re-enumeration */
2820 do_unlock = usbd_enum_lock(udev);
2822 if (udev->bus->methods->set_endpoint_mode != NULL) {
2823 error = (udev->bus->methods->set_endpoint_mode) (
2825 } else if (ep_mode != USB_EP_MODE_DEFAULT) {
2826 error = USB_ERR_INVAL;
2831 /* only set new mode regardless of error */
2832 ep->ep_mode = ep_mode;
2835 usbd_enum_unlock(udev);
2840 usbd_get_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep)
2842 return (ep->ep_mode);