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 #ifdef USB_GLOBAL_INCLUDE_FILE
28 #include USB_GLOBAL_INCLUDE_FILE
30 #include <sys/stdint.h>
31 #include <sys/stddef.h>
32 #include <sys/param.h>
33 #include <sys/queue.h>
34 #include <sys/types.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
38 #include <sys/module.h>
40 #include <sys/mutex.h>
41 #include <sys/condvar.h>
42 #include <sys/sysctl.h>
44 #include <sys/unistd.h>
45 #include <sys/callout.h>
46 #include <sys/malloc.h>
49 #include <sys/fcntl.h>
51 #include <dev/usb/usb.h>
52 #include <dev/usb/usbdi.h>
53 #include <dev/usb/usbdi_util.h>
54 #include <dev/usb/usb_ioctl.h>
62 #define USB_DEBUG_VAR usb_debug
64 #include <dev/usb/usb_core.h>
65 #include <dev/usb/usb_debug.h>
66 #include <dev/usb/usb_process.h>
67 #include <dev/usb/usb_device.h>
68 #include <dev/usb/usb_busdma.h>
69 #include <dev/usb/usb_transfer.h>
70 #include <dev/usb/usb_request.h>
71 #include <dev/usb/usb_dynamic.h>
72 #include <dev/usb/usb_hub.h>
73 #include <dev/usb/usb_util.h>
74 #include <dev/usb/usb_msctest.h>
76 #include <dev/usb/usb_dev.h>
77 #include <dev/usb/usb_generic.h>
80 #include <dev/usb/quirk/usb_quirk.h>
82 #include <dev/usb/usb_controller.h>
83 #include <dev/usb/usb_bus.h>
84 #endif /* USB_GLOBAL_INCLUDE_FILE */
86 /* function prototypes */
88 static void usb_init_endpoint(struct usb_device *, uint8_t,
89 struct usb_endpoint_descriptor *,
90 struct usb_endpoint_ss_comp_descriptor *,
91 struct usb_endpoint *);
92 static void usb_unconfigure(struct usb_device *, uint8_t);
93 static void usb_detach_device_sub(struct usb_device *, device_t *,
95 static uint8_t usb_probe_and_attach_sub(struct usb_device *,
96 struct usb_attach_arg *);
97 static void usb_init_attach_arg(struct usb_device *,
98 struct usb_attach_arg *);
99 static void usb_suspend_resume_sub(struct usb_device *, device_t,
101 static void usbd_clear_stall_proc(struct usb_proc_msg *_pm);
102 static usb_error_t usb_config_parse(struct usb_device *, uint8_t, uint8_t);
103 static void usbd_set_device_strings(struct usb_device *);
105 static void usb_notify_addq(const char *type, struct usb_device *);
108 static void usb_fifo_free_wrap(struct usb_device *, uint8_t, uint8_t);
109 static void usb_cdev_create(struct usb_device *);
110 static void usb_cdev_free(struct usb_device *);
113 /* This variable is global to allow easy access to it: */
116 int usb_template = USB_TEMPLATE;
121 TUNABLE_INT("hw.usb.usb_template", &usb_template);
122 SYSCTL_INT(_hw_usb, OID_AUTO, template, CTLFLAG_RW | CTLFLAG_TUN,
123 &usb_template, 0, "Selected USB device side template");
125 /* English is default language */
127 static int usb_lang_id = 0x0009;
128 static int usb_lang_mask = 0x00FF;
130 TUNABLE_INT("hw.usb.usb_lang_id", &usb_lang_id);
131 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_id, CTLFLAG_RW | CTLFLAG_TUN,
132 &usb_lang_id, 0, "Preferred USB language ID");
134 TUNABLE_INT("hw.usb.usb_lang_mask", &usb_lang_mask);
135 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_mask, CTLFLAG_RW | CTLFLAG_TUN,
136 &usb_lang_mask, 0, "Preferred USB language mask");
138 static const char* statestr[USB_STATE_MAX] = {
139 [USB_STATE_DETACHED] = "DETACHED",
140 [USB_STATE_ATTACHED] = "ATTACHED",
141 [USB_STATE_POWERED] = "POWERED",
142 [USB_STATE_ADDRESSED] = "ADDRESSED",
143 [USB_STATE_CONFIGURED] = "CONFIGURED",
147 usb_statestr(enum usb_dev_state state)
149 return ((state < USB_STATE_MAX) ? statestr[state] : "UNKNOWN");
153 usb_get_manufacturer(struct usb_device *udev)
155 return (udev->manufacturer ? udev->manufacturer : "Unknown");
159 usb_get_product(struct usb_device *udev)
161 return (udev->product ? udev->product : "");
165 usb_get_serial(struct usb_device *udev)
167 return (udev->serial ? udev->serial : "");
170 /*------------------------------------------------------------------------*
171 * usbd_get_ep_by_addr
173 * This function searches for an USB ep by endpoint address and
179 *------------------------------------------------------------------------*/
180 struct usb_endpoint *
181 usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val)
183 struct usb_endpoint *ep = udev->endpoints;
184 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
186 EA_MASK = (UE_DIR_IN | UE_DIR_OUT | UE_ADDR),
190 * According to the USB specification not all bits are used
191 * for the endpoint address. Keep defined bits only:
196 * Iterate accross all the USB endpoints searching for a match
197 * based on the endpoint address:
199 for (; ep != ep_end; ep++) {
201 if (ep->edesc == NULL) {
204 /* do the mask and check the value */
205 if ((ep->edesc->bEndpointAddress & EA_MASK) == ea_val) {
211 * The default endpoint is always present and is checked separately:
213 if ((udev->ctrl_ep.edesc != NULL) &&
214 ((udev->ctrl_ep.edesc->bEndpointAddress & EA_MASK) == ea_val)) {
224 /*------------------------------------------------------------------------*
227 * This function searches for an USB endpoint based on the information
228 * given by the passed "struct usb_config" pointer.
232 * Else: Pointer to "struct usb_endpoint".
233 *------------------------------------------------------------------------*/
234 struct usb_endpoint *
235 usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
236 const struct usb_config *setup)
238 struct usb_endpoint *ep = udev->endpoints;
239 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
240 uint8_t index = setup->ep_index;
246 DPRINTFN(10, "udev=%p iface_index=%d address=0x%x "
247 "type=0x%x dir=0x%x index=%d\n",
248 udev, iface_index, setup->endpoint,
249 setup->type, setup->direction, setup->ep_index);
253 if (setup->usb_mode != USB_MODE_DUAL &&
254 udev->flags.usb_mode != setup->usb_mode) {
255 /* wrong mode - no endpoint */
259 /* setup expected endpoint direction mask and value */
261 if (setup->direction == UE_DIR_RX) {
262 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
263 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
264 UE_DIR_OUT : UE_DIR_IN;
265 } else if (setup->direction == UE_DIR_TX) {
266 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
267 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
268 UE_DIR_IN : UE_DIR_OUT;
269 } else if (setup->direction == UE_DIR_ANY) {
270 /* match any endpoint direction */
274 /* match the given endpoint direction */
275 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
276 ea_val = (setup->direction & (UE_DIR_IN | UE_DIR_OUT));
279 /* setup expected endpoint address */
281 if (setup->endpoint == UE_ADDR_ANY) {
282 /* match any endpoint address */
284 /* match the given endpoint address */
286 ea_val |= (setup->endpoint & UE_ADDR);
289 /* setup expected endpoint type */
291 if (setup->type == UE_BULK_INTR) {
292 /* this will match BULK and INTERRUPT endpoints */
295 } else if (setup->type == UE_TYPE_ANY) {
296 /* match any endpoint type */
300 /* match the given endpoint type */
301 type_mask = UE_XFERTYPE;
302 type_val = (setup->type & UE_XFERTYPE);
306 * Iterate accross all the USB endpoints searching for a match
307 * based on the endpoint address. Note that we are searching
308 * the endpoints from the beginning of the "udev->endpoints" array.
310 for (; ep != ep_end; ep++) {
312 if ((ep->edesc == NULL) ||
313 (ep->iface_index != iface_index)) {
316 /* do the masks and check the values */
318 if (((ep->edesc->bEndpointAddress & ea_mask) == ea_val) &&
319 ((ep->edesc->bmAttributes & type_mask) == type_val)) {
327 * Match against default endpoint last, so that "any endpoint", "any
328 * address" and "any direction" returns the first endpoint of the
329 * interface. "iface_index" and "direction" is ignored:
331 if ((udev->ctrl_ep.edesc != NULL) &&
332 ((udev->ctrl_ep.edesc->bEndpointAddress & ea_mask) == ea_val) &&
333 ((udev->ctrl_ep.edesc->bmAttributes & type_mask) == type_val) &&
344 /*------------------------------------------------------------------------*
345 * usbd_interface_count
347 * This function stores the number of USB interfaces excluding
348 * alternate settings, which the USB config descriptor reports into
349 * the unsigned 8-bit integer pointed to by "count".
354 *------------------------------------------------------------------------*/
356 usbd_interface_count(struct usb_device *udev, uint8_t *count)
358 if (udev->cdesc == NULL) {
360 return (USB_ERR_NOT_CONFIGURED);
362 *count = udev->ifaces_max;
363 return (USB_ERR_NORMAL_COMPLETION);
366 /*------------------------------------------------------------------------*
369 * This function will initialise the USB endpoint structure pointed to by
370 * the "endpoint" argument. The structure pointed to by "endpoint" must be
371 * zeroed before calling this function.
372 *------------------------------------------------------------------------*/
374 usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
375 struct usb_endpoint_descriptor *edesc,
376 struct usb_endpoint_ss_comp_descriptor *ecomp,
377 struct usb_endpoint *ep)
379 struct usb_bus_methods *methods;
382 methods = udev->bus->methods;
384 (methods->endpoint_init) (udev, edesc, ep);
386 /* initialise USB endpoint structure */
389 ep->iface_index = iface_index;
391 /* setup USB stream queues */
392 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
393 TAILQ_INIT(&ep->endpoint_q[x].head);
394 ep->endpoint_q[x].command = &usbd_pipe_start;
397 /* the pipe is not supported by the hardware */
398 if (ep->methods == NULL)
401 /* check for SUPER-speed streams mode endpoint */
402 if (udev->speed == USB_SPEED_SUPER && ecomp != NULL &&
403 (edesc->bmAttributes & UE_XFERTYPE) == UE_BULK &&
404 (UE_GET_BULK_STREAMS(ecomp->bmAttributes) != 0)) {
405 usbd_set_endpoint_mode(udev, ep, USB_EP_MODE_STREAMS);
407 usbd_set_endpoint_mode(udev, ep, USB_EP_MODE_DEFAULT);
410 /* clear stall, if any */
411 if (methods->clear_stall != NULL) {
412 USB_BUS_LOCK(udev->bus);
413 (methods->clear_stall) (udev, ep);
414 USB_BUS_UNLOCK(udev->bus);
418 /*-----------------------------------------------------------------------*
419 * usb_endpoint_foreach
421 * This function will iterate all the USB endpoints except the control
422 * endpoint. This function is NULL safe.
425 * NULL: End of USB endpoints
426 * Else: Pointer to next USB endpoint
427 *------------------------------------------------------------------------*/
428 struct usb_endpoint *
429 usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
431 struct usb_endpoint *ep_end;
437 ep_end = udev->endpoints + udev->endpoints_max;
439 /* get next endpoint */
441 ep = udev->endpoints;
445 /* find next allocated ep */
446 while (ep != ep_end) {
447 if (ep->edesc != NULL)
454 /*------------------------------------------------------------------------*
457 * This function will free all USB interfaces and USB endpoints belonging
460 * Flag values, see "USB_UNCFG_FLAG_XXX".
461 *------------------------------------------------------------------------*/
463 usb_unconfigure(struct usb_device *udev, uint8_t flag)
467 /* Prevent re-enumeration */
468 do_unlock = usbd_enum_lock(udev);
470 /* detach all interface drivers */
471 usb_detach_device(udev, USB_IFACE_INDEX_ANY, flag);
474 /* free all FIFOs except control endpoint FIFOs */
475 usb_fifo_free_wrap(udev, USB_IFACE_INDEX_ANY, flag);
478 * Free all cdev's, if any.
483 #if USB_HAVE_COMPAT_LINUX
484 /* free Linux compat device, if any */
485 if (udev->linux_endpoint_start) {
486 usb_linux_free_device(udev);
487 udev->linux_endpoint_start = NULL;
491 usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_FREE);
493 /* free "cdesc" after "ifaces" and "endpoints", if any */
494 if (udev->cdesc != NULL) {
495 if (udev->flags.usb_mode != USB_MODE_DEVICE)
496 usbd_free_config_desc(udev, udev->cdesc);
499 /* set unconfigured state */
500 udev->curr_config_no = USB_UNCONFIG_NO;
501 udev->curr_config_index = USB_UNCONFIG_INDEX;
504 usbd_enum_unlock(udev);
507 /*------------------------------------------------------------------------*
508 * usbd_set_config_index
510 * This function selects configuration by index, independent of the
511 * actual configuration number. This function should not be used by
517 *------------------------------------------------------------------------*/
519 usbd_set_config_index(struct usb_device *udev, uint8_t index)
521 struct usb_status ds;
522 struct usb_config_descriptor *cdp;
529 DPRINTFN(6, "udev=%p index=%d\n", udev, index);
531 /* Prevent re-enumeration */
532 do_unlock = usbd_enum_lock(udev);
534 usb_unconfigure(udev, 0);
536 if (index == USB_UNCONFIG_INDEX) {
538 * Leave unallocated when unconfiguring the
539 * device. "usb_unconfigure()" will also reset
540 * the current config number and index.
542 err = usbd_req_set_config(udev, NULL, USB_UNCONFIG_NO);
543 if (udev->state == USB_STATE_CONFIGURED)
544 usb_set_device_state(udev, USB_STATE_ADDRESSED);
547 /* get the full config descriptor */
548 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
549 /* save some memory */
550 err = usbd_req_get_descriptor_ptr(udev, &cdp,
551 (UDESC_CONFIG << 8) | index);
554 err = usbd_req_get_config_desc_full(udev,
560 /* set the new config descriptor */
564 /* Figure out if the device is self or bus powered. */
566 if ((!udev->flags.uq_bus_powered) &&
567 (cdp->bmAttributes & UC_SELF_POWERED) &&
568 (udev->flags.usb_mode == USB_MODE_HOST)) {
569 /* May be self powered. */
570 if (cdp->bmAttributes & UC_BUS_POWERED) {
571 /* Must ask device. */
572 err = usbd_req_get_device_status(udev, NULL, &ds);
574 DPRINTFN(0, "could not read "
575 "device status: %s\n",
577 } else if (UGETW(ds.wStatus) & UDS_SELF_POWERED) {
580 DPRINTF("status=0x%04x \n",
585 DPRINTF("udev=%p cdesc=%p (addr %d) cno=%d attr=0x%02x, "
586 "selfpowered=%d, power=%d\n",
588 udev->address, cdp->bConfigurationValue, cdp->bmAttributes,
589 selfpowered, cdp->bMaxPower * 2);
591 /* Check if we have enough power. */
592 power = cdp->bMaxPower * 2;
594 if (udev->parent_hub) {
595 max_power = udev->parent_hub->hub->portpower;
597 max_power = USB_MAX_POWER;
600 if (power > max_power) {
601 DPRINTFN(0, "power exceeded %d > %d\n", power, max_power);
602 err = USB_ERR_NO_POWER;
605 /* Only update "self_powered" in USB Host Mode */
606 if (udev->flags.usb_mode == USB_MODE_HOST) {
607 udev->flags.self_powered = selfpowered;
610 udev->curr_config_no = cdp->bConfigurationValue;
611 udev->curr_config_index = index;
612 usb_set_device_state(udev, USB_STATE_CONFIGURED);
614 /* Set the actual configuration value. */
615 err = usbd_req_set_config(udev, NULL, cdp->bConfigurationValue);
620 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_ALLOC);
625 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_INIT);
631 /* create device nodes for each endpoint */
632 usb_cdev_create(udev);
636 DPRINTF("error=%s\n", usbd_errstr(err));
638 usb_unconfigure(udev, 0);
641 usbd_enum_unlock(udev);
645 /*------------------------------------------------------------------------*
648 * This function will allocate and free USB interfaces and USB endpoints,
649 * parse the USB configuration structure and initialise the USB endpoints
650 * and interfaces. If "iface_index" is not equal to
651 * "USB_IFACE_INDEX_ANY" then the "cmd" parameter is the
652 * alternate_setting to be selected for the given interface. Else the
653 * "cmd" parameter is defined by "USB_CFG_XXX". "iface_index" can be
654 * "USB_IFACE_INDEX_ANY" or a valid USB interface index. This function
655 * is typically called when setting the configuration or when setting
656 * an alternate interface.
661 *------------------------------------------------------------------------*/
663 usb_config_parse(struct usb_device *udev, uint8_t iface_index, uint8_t cmd)
665 struct usb_idesc_parse_state ips;
666 struct usb_interface_descriptor *id;
667 struct usb_endpoint_descriptor *ed;
668 struct usb_interface *iface;
669 struct usb_endpoint *ep;
677 if (iface_index != USB_IFACE_INDEX_ANY) {
678 /* parameter overload */
688 DPRINTFN(5, "iface_index=%d cmd=%d\n",
691 if (cmd == USB_CFG_FREE)
694 if (cmd == USB_CFG_INIT) {
695 sx_assert(&udev->enum_sx, SA_LOCKED);
697 /* check for in-use endpoints */
699 ep = udev->endpoints;
700 ep_max = udev->endpoints_max;
702 /* look for matching endpoints */
703 if ((iface_index == USB_IFACE_INDEX_ANY) ||
704 (iface_index == ep->iface_index)) {
705 if (ep->refcount_alloc != 0) {
707 * This typically indicates a
708 * more serious error.
710 err = USB_ERR_IN_USE;
713 memset(ep, 0, sizeof(*ep));
714 /* make sure we don't zero the endpoint again */
715 ep->iface_index = USB_IFACE_INDEX_ANY;
725 memset(&ips, 0, sizeof(ips));
730 while ((id = usb_idesc_foreach(udev->cdesc, &ips))) {
732 iface = udev->ifaces + ips.iface_index;
734 /* check for specific interface match */
736 if (cmd == USB_CFG_INIT) {
737 if ((iface_index != USB_IFACE_INDEX_ANY) &&
738 (iface_index != ips.iface_index)) {
739 /* wrong interface */
741 } else if (alt_index != ips.iface_index_alt) {
742 /* wrong alternate setting */
745 /* initialise interface */
751 /* check for new interface */
752 if (ips.iface_index_alt == 0) {
753 /* update current number of endpoints */
758 /* setup the USB interface structure */
760 /* set alternate index */
761 iface->alt_index = alt_index;
762 /* set default interface parent */
763 if (iface_index == USB_IFACE_INDEX_ANY) {
764 iface->parent_iface_index =
769 DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
771 ed = (struct usb_endpoint_descriptor *)id;
775 /* iterate all the endpoint descriptors */
776 while ((ed = usb_edesc_foreach(udev->cdesc, ed))) {
778 /* check if endpoint limit has been reached */
779 if (temp >= USB_MAX_EP_UNITS) {
780 DPRINTF("Endpoint limit reached\n");
784 ep = udev->endpoints + temp;
789 ecomp = usb_ed_comp_foreach(udev->cdesc, (void *)ed);
791 DPRINTFN(5, "Found endpoint companion descriptor\n");
793 usb_init_endpoint(udev,
794 ips.iface_index, ed, ecomp, ep);
799 /* find maximum number of endpoints */
805 /* NOTE: It is valid to have no interfaces and no endpoints! */
807 if (cmd == USB_CFG_ALLOC) {
808 udev->ifaces_max = ips.iface_index;
809 #if (USB_HAVE_FIXED_IFACE == 0)
811 if (udev->ifaces_max != 0) {
812 udev->ifaces = malloc(sizeof(*iface) * udev->ifaces_max,
813 M_USB, M_WAITOK | M_ZERO);
814 if (udev->ifaces == NULL) {
820 #if (USB_HAVE_FIXED_ENDPOINT == 0)
822 udev->endpoints = malloc(sizeof(*ep) * ep_max,
823 M_USB, M_WAITOK | M_ZERO);
824 if (udev->endpoints == NULL) {
829 udev->endpoints = NULL;
832 USB_BUS_LOCK(udev->bus);
833 udev->endpoints_max = ep_max;
834 /* reset any ongoing clear-stall */
835 udev->ep_curr = NULL;
836 USB_BUS_UNLOCK(udev->bus);
838 #if (USB_HAVE_FIXED_IFACE == 0) || (USB_HAVE_FIXED_ENDPOINT == 0)
842 if (cmd == USB_CFG_ALLOC) {
844 USB_BUS_LOCK(udev->bus);
845 udev->endpoints_max = 0;
846 /* reset any ongoing clear-stall */
847 udev->ep_curr = NULL;
848 USB_BUS_UNLOCK(udev->bus);
850 #if (USB_HAVE_FIXED_IFACE == 0)
851 free(udev->ifaces, M_USB);
854 #if (USB_HAVE_FIXED_ENDPOINT == 0)
855 free(udev->endpoints, M_USB);
856 udev->endpoints = NULL;
858 udev->ifaces_max = 0;
864 /*------------------------------------------------------------------------*
865 * usbd_set_alt_interface_index
867 * This function will select an alternate interface index for the
868 * given interface index. The interface should not be in use when this
869 * function is called. That means there should not be any open USB
870 * transfers. Else an error is returned. If the alternate setting is
871 * already set this function will simply return success. This function
872 * is called in Host mode and Device mode!
877 *------------------------------------------------------------------------*/
879 usbd_set_alt_interface_index(struct usb_device *udev,
880 uint8_t iface_index, uint8_t alt_index)
882 struct usb_interface *iface = usbd_get_iface(udev, iface_index);
886 /* Prevent re-enumeration */
887 do_unlock = usbd_enum_lock(udev);
893 if (iface->alt_index == alt_index) {
895 * Optimise away duplicate setting of
896 * alternate setting in USB Host Mode!
903 * Free all generic FIFOs for this interface, except control
906 usb_fifo_free_wrap(udev, iface_index, 0);
909 err = usb_config_parse(udev, iface_index, alt_index);
913 if (iface->alt_index != alt_index) {
914 /* the alternate setting does not exist */
919 err = usbd_req_set_alt_interface_no(udev, NULL, iface_index,
920 iface->idesc->bAlternateSetting);
924 usbd_enum_unlock(udev);
928 /*------------------------------------------------------------------------*
929 * usbd_set_endpoint_stall
931 * This function is used to make a BULK or INTERRUPT endpoint send
932 * STALL tokens in USB device mode.
937 *------------------------------------------------------------------------*/
939 usbd_set_endpoint_stall(struct usb_device *udev, struct usb_endpoint *ep,
942 struct usb_xfer *xfer;
949 DPRINTF("Cannot find endpoint\n");
951 * Pretend that the clear or set stall request is
952 * successful else some USB host stacks can do
953 * strange things, especially when a control endpoint
958 et = (ep->edesc->bmAttributes & UE_XFERTYPE);
960 if ((et != UE_BULK) &&
961 (et != UE_INTERRUPT)) {
963 * Should not stall control
964 * nor isochronous endpoints.
966 DPRINTF("Invalid endpoint\n");
969 USB_BUS_LOCK(udev->bus);
971 /* store current stall state */
972 was_stalled = ep->is_stalled;
974 /* check for no change */
975 if (was_stalled && do_stall) {
976 /* if the endpoint is already stalled do nothing */
977 USB_BUS_UNLOCK(udev->bus);
978 DPRINTF("No change\n");
981 /* set stalled state */
984 if (do_stall || (!was_stalled)) {
986 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
987 /* lookup the current USB transfer, if any */
988 xfer = ep->endpoint_q[x].curr;
991 * The "xfer_stall" method
992 * will complete the USB
993 * transfer like in case of a
994 * timeout setting the error
995 * code "USB_ERR_STALLED".
997 (udev->bus->methods->xfer_stall) (xfer);
1001 (udev->bus->methods->set_stall) (udev, ep, &do_stall);
1004 ep->toggle_next = 0; /* reset data toggle */
1005 ep->is_stalled = 0; /* clear stalled state */
1007 (udev->bus->methods->clear_stall) (udev, ep);
1009 /* start the current or next transfer, if any */
1010 for (x = 0; x != USB_MAX_EP_STREAMS; x++) {
1011 usb_command_wrapper(&ep->endpoint_q[x],
1012 ep->endpoint_q[x].curr);
1015 USB_BUS_UNLOCK(udev->bus);
1019 /*------------------------------------------------------------------------*
1020 * usb_reset_iface_endpoints - used in USB device side mode
1021 *------------------------------------------------------------------------*/
1023 usb_reset_iface_endpoints(struct usb_device *udev, uint8_t iface_index)
1025 struct usb_endpoint *ep;
1026 struct usb_endpoint *ep_end;
1028 ep = udev->endpoints;
1029 ep_end = udev->endpoints + udev->endpoints_max;
1031 for (; ep != ep_end; ep++) {
1033 if ((ep->edesc == NULL) ||
1034 (ep->iface_index != iface_index)) {
1037 /* simulate a clear stall from the peer */
1038 usbd_set_endpoint_stall(udev, ep, 0);
1043 /*------------------------------------------------------------------------*
1044 * usb_detach_device_sub
1046 * This function will try to detach an USB device. If it fails a panic
1049 * Flag values, see "USB_UNCFG_FLAG_XXX".
1050 *------------------------------------------------------------------------*/
1052 usb_detach_device_sub(struct usb_device *udev, device_t *ppdev,
1053 char **ppnpinfo, uint8_t flag)
1062 * NOTE: It is important to clear "*ppdev" before deleting
1063 * the child due to some device methods being called late
1064 * during the delete process !
1068 device_printf(dev, "at %s, port %d, addr %d "
1070 device_get_nameunit(udev->parent_dev),
1071 udev->port_no, udev->address);
1073 if (device_is_attached(dev)) {
1074 if (udev->flags.peer_suspended) {
1075 err = DEVICE_RESUME(dev);
1077 device_printf(dev, "Resume failed\n");
1080 if (device_detach(dev)) {
1084 if (device_delete_child(udev->parent_dev, dev)) {
1089 pnpinfo = *ppnpinfo;
1090 if (pnpinfo != NULL) {
1092 free(pnpinfo, M_USBDEV);
1097 /* Detach is not allowed to fail in the USB world */
1098 panic("usb_detach_device_sub: A USB driver would not detach\n");
1101 /*------------------------------------------------------------------------*
1104 * The following function will detach the matching interfaces.
1105 * This function is NULL safe.
1107 * Flag values, see "USB_UNCFG_FLAG_XXX".
1108 *------------------------------------------------------------------------*/
1110 usb_detach_device(struct usb_device *udev, uint8_t iface_index,
1113 struct usb_interface *iface;
1120 DPRINTFN(4, "udev=%p\n", udev);
1122 sx_assert(&udev->enum_sx, SA_LOCKED);
1125 * First detach the child to give the child's detach routine a
1126 * chance to detach the sub-devices in the correct order.
1127 * Then delete the child using "device_delete_child()" which
1128 * will detach all sub-devices from the bottom and upwards!
1130 if (iface_index != USB_IFACE_INDEX_ANY) {
1132 iface_index = i + 1;
1135 iface_index = USB_IFACE_MAX;
1140 for (; i != iface_index; i++) {
1142 iface = usbd_get_iface(udev, i);
1143 if (iface == NULL) {
1144 /* looks like the end of the USB interfaces */
1147 usb_detach_device_sub(udev, &iface->subdev,
1148 &iface->pnpinfo, flag);
1152 /*------------------------------------------------------------------------*
1153 * usb_probe_and_attach_sub
1158 *------------------------------------------------------------------------*/
1160 usb_probe_and_attach_sub(struct usb_device *udev,
1161 struct usb_attach_arg *uaa)
1163 struct usb_interface *iface;
1168 if (iface->parent_iface_index != USB_IFACE_INDEX_ANY) {
1169 /* leave interface alone */
1172 dev = iface->subdev;
1175 /* clean up after module unload */
1177 if (device_is_attached(dev)) {
1178 /* already a device there */
1181 /* clear "iface->subdev" as early as possible */
1183 iface->subdev = NULL;
1185 if (device_delete_child(udev->parent_dev, dev)) {
1188 * Panic here, else one can get a double call
1189 * to device_detach(). USB devices should
1190 * never fail on detach!
1192 panic("device_delete_child() failed\n");
1195 if (uaa->temp_dev == NULL) {
1197 /* create a new child */
1198 uaa->temp_dev = device_add_child(udev->parent_dev, NULL, -1);
1199 if (uaa->temp_dev == NULL) {
1200 device_printf(udev->parent_dev,
1201 "Device creation failed\n");
1202 return (1); /* failure */
1204 device_set_ivars(uaa->temp_dev, uaa);
1205 device_quiet(uaa->temp_dev);
1208 * Set "subdev" before probe and attach so that "devd" gets
1209 * the information it needs.
1211 iface->subdev = uaa->temp_dev;
1213 if (device_probe_and_attach(iface->subdev) == 0) {
1215 * The USB attach arguments are only available during probe
1218 uaa->temp_dev = NULL;
1219 device_set_ivars(iface->subdev, NULL);
1221 if (udev->flags.peer_suspended) {
1222 err = DEVICE_SUSPEND(iface->subdev);
1224 device_printf(iface->subdev, "Suspend failed\n");
1226 return (0); /* success */
1228 /* No USB driver found */
1229 iface->subdev = NULL;
1231 return (1); /* failure */
1234 /*------------------------------------------------------------------------*
1235 * usbd_set_parent_iface
1237 * Using this function will lock the alternate interface setting on an
1238 * interface. It is typically used for multi interface drivers. In USB
1239 * device side mode it is assumed that the alternate interfaces all
1240 * have the same endpoint descriptors. The default parent index value
1241 * is "USB_IFACE_INDEX_ANY". Then the alternate setting value is not
1243 *------------------------------------------------------------------------*/
1245 usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
1246 uint8_t parent_index)
1248 struct usb_interface *iface;
1254 iface = usbd_get_iface(udev, iface_index);
1256 iface->parent_iface_index = parent_index;
1260 usb_init_attach_arg(struct usb_device *udev,
1261 struct usb_attach_arg *uaa)
1263 memset(uaa, 0, sizeof(*uaa));
1266 uaa->usb_mode = udev->flags.usb_mode;
1267 uaa->port = udev->port_no;
1268 uaa->dev_state = UAA_DEV_READY;
1270 uaa->info.idVendor = UGETW(udev->ddesc.idVendor);
1271 uaa->info.idProduct = UGETW(udev->ddesc.idProduct);
1272 uaa->info.bcdDevice = UGETW(udev->ddesc.bcdDevice);
1273 uaa->info.bDeviceClass = udev->ddesc.bDeviceClass;
1274 uaa->info.bDeviceSubClass = udev->ddesc.bDeviceSubClass;
1275 uaa->info.bDeviceProtocol = udev->ddesc.bDeviceProtocol;
1276 uaa->info.bConfigIndex = udev->curr_config_index;
1277 uaa->info.bConfigNum = udev->curr_config_no;
1280 /*------------------------------------------------------------------------*
1281 * usb_probe_and_attach
1283 * This function is called from "uhub_explore_sub()",
1284 * "usb_handle_set_config()" and "usb_handle_request()".
1288 * Else: A control transfer failed
1289 *------------------------------------------------------------------------*/
1291 usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index)
1293 struct usb_attach_arg uaa;
1294 struct usb_interface *iface;
1300 DPRINTF("udev == NULL\n");
1301 return (USB_ERR_INVAL);
1303 /* Prevent re-enumeration */
1304 do_unlock = usbd_enum_lock(udev);
1306 if (udev->curr_config_index == USB_UNCONFIG_INDEX) {
1307 /* do nothing - no configuration has been set */
1310 /* setup USB attach arguments */
1312 usb_init_attach_arg(udev, &uaa);
1315 * If the whole USB device is targeted, invoke the USB event
1318 if (iface_index == USB_IFACE_INDEX_ANY) {
1320 EVENTHANDLER_INVOKE(usb_dev_configured, udev, &uaa);
1322 if (uaa.dev_state != UAA_DEV_READY) {
1323 /* leave device unconfigured */
1324 usb_unconfigure(udev, 0);
1329 /* Check if only one interface should be probed: */
1330 if (iface_index != USB_IFACE_INDEX_ANY) {
1338 /* Do the probe and attach */
1339 for (; i != j; i++) {
1341 iface = usbd_get_iface(udev, i);
1342 if (iface == NULL) {
1344 * Looks like the end of the USB
1347 DPRINTFN(2, "end of interfaces "
1351 if (iface->idesc == NULL) {
1352 /* no interface descriptor */
1357 uaa.info.bInterfaceClass =
1358 iface->idesc->bInterfaceClass;
1359 uaa.info.bInterfaceSubClass =
1360 iface->idesc->bInterfaceSubClass;
1361 uaa.info.bInterfaceProtocol =
1362 iface->idesc->bInterfaceProtocol;
1363 uaa.info.bIfaceIndex = i;
1364 uaa.info.bIfaceNum =
1365 iface->idesc->bInterfaceNumber;
1366 uaa.driver_info = 0; /* reset driver_info */
1368 DPRINTFN(2, "iclass=%u/%u/%u iindex=%u/%u\n",
1369 uaa.info.bInterfaceClass,
1370 uaa.info.bInterfaceSubClass,
1371 uaa.info.bInterfaceProtocol,
1372 uaa.info.bIfaceIndex,
1373 uaa.info.bIfaceNum);
1375 usb_probe_and_attach_sub(udev, &uaa);
1378 * Remove the leftover child, if any, to enforce that
1379 * a new nomatch devd event is generated for the next
1380 * interface if no driver is found:
1382 if (uaa.temp_dev == NULL)
1384 if (device_delete_child(udev->parent_dev, uaa.temp_dev))
1385 DPRINTFN(0, "device delete child failed\n");
1386 uaa.temp_dev = NULL;
1390 usbd_enum_unlock(udev);
1394 /*------------------------------------------------------------------------*
1395 * usb_suspend_resume_sub
1397 * This function is called when the suspend or resume methods should
1398 * be executed on an USB device.
1399 *------------------------------------------------------------------------*/
1401 usb_suspend_resume_sub(struct usb_device *udev, device_t dev, uint8_t do_suspend)
1408 if (!device_is_attached(dev)) {
1412 err = DEVICE_SUSPEND(dev);
1414 err = DEVICE_RESUME(dev);
1417 device_printf(dev, "%s failed\n",
1418 do_suspend ? "Suspend" : "Resume");
1422 /*------------------------------------------------------------------------*
1423 * usb_suspend_resume
1425 * The following function will suspend or resume the USB device.
1430 *------------------------------------------------------------------------*/
1432 usb_suspend_resume(struct usb_device *udev, uint8_t do_suspend)
1434 struct usb_interface *iface;
1441 DPRINTFN(4, "udev=%p do_suspend=%d\n", udev, do_suspend);
1443 sx_assert(&udev->sr_sx, SA_LOCKED);
1445 USB_BUS_LOCK(udev->bus);
1446 /* filter the suspend events */
1447 if (udev->flags.peer_suspended == do_suspend) {
1448 USB_BUS_UNLOCK(udev->bus);
1452 udev->flags.peer_suspended = do_suspend;
1453 USB_BUS_UNLOCK(udev->bus);
1455 /* do the suspend or resume */
1457 for (i = 0; i != USB_IFACE_MAX; i++) {
1459 iface = usbd_get_iface(udev, i);
1460 if (iface == NULL) {
1461 /* looks like the end of the USB interfaces */
1464 usb_suspend_resume_sub(udev, iface->subdev, do_suspend);
1469 /*------------------------------------------------------------------------*
1470 * usbd_clear_stall_proc
1472 * This function performs generic USB clear stall operations.
1473 *------------------------------------------------------------------------*/
1475 usbd_clear_stall_proc(struct usb_proc_msg *_pm)
1477 struct usb_clear_stall_msg *pm = (void *)_pm;
1478 struct usb_device *udev = pm->udev;
1481 USB_BUS_UNLOCK(udev->bus);
1482 mtx_lock(&udev->device_mtx);
1484 /* Start clear stall callback */
1485 usbd_transfer_start(udev->ctrl_xfer[1]);
1488 mtx_unlock(&udev->device_mtx);
1489 USB_BUS_LOCK(udev->bus);
1492 /*------------------------------------------------------------------------*
1495 * This function allocates a new USB device. This function is called
1496 * when a new device has been put in the powered state, but not yet in
1497 * the addressed state. Get initial descriptor, set the address, get
1498 * full descriptor and get strings.
1503 *------------------------------------------------------------------------*/
1505 usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
1506 struct usb_device *parent_hub, uint8_t depth, uint8_t port_index,
1507 uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode)
1509 struct usb_attach_arg uaa;
1510 struct usb_device *udev;
1511 struct usb_device *adev;
1512 struct usb_device *hub;
1513 uint8_t *scratch_ptr;
1515 uint8_t device_index;
1516 uint8_t config_index;
1517 uint8_t config_quirk;
1518 uint8_t set_config_failed;
1521 DPRINTF("parent_dev=%p, bus=%p, parent_hub=%p, depth=%u, "
1522 "port_index=%u, port_no=%u, speed=%u, usb_mode=%u\n",
1523 parent_dev, bus, parent_hub, depth, port_index, port_no,
1527 * Find an unused device index. In USB Host mode this is the
1528 * same as the device address.
1530 * Device index zero is not used and device index 1 should
1531 * always be the root hub.
1533 for (device_index = USB_ROOT_HUB_ADDR;
1534 (device_index != bus->devices_max) &&
1535 (bus->devices[device_index] != NULL);
1536 device_index++) /* nop */;
1538 if (device_index == bus->devices_max) {
1539 device_printf(bus->bdev,
1540 "No free USB device index for new device\n");
1545 device_printf(bus->bdev,
1546 "Invalid device depth\n");
1549 udev = malloc(sizeof(*udev), M_USB, M_WAITOK | M_ZERO);
1553 /* initialise our SX-lock */
1554 sx_init_flags(&udev->enum_sx, "USB config SX lock", SX_DUPOK);
1555 sx_init_flags(&udev->sr_sx, "USB suspend and resume SX lock", SX_NOWITNESS);
1557 cv_init(&udev->ctrlreq_cv, "WCTRL");
1558 cv_init(&udev->ref_cv, "UGONE");
1560 /* initialise our mutex */
1561 mtx_init(&udev->device_mtx, "USB device mutex", NULL, MTX_DEF);
1563 /* initialise generic clear stall */
1564 udev->cs_msg[0].hdr.pm_callback = &usbd_clear_stall_proc;
1565 udev->cs_msg[0].udev = udev;
1566 udev->cs_msg[1].hdr.pm_callback = &usbd_clear_stall_proc;
1567 udev->cs_msg[1].udev = udev;
1569 /* initialise some USB device fields */
1570 udev->parent_hub = parent_hub;
1571 udev->parent_dev = parent_dev;
1572 udev->port_index = port_index;
1573 udev->port_no = port_no;
1574 udev->depth = depth;
1576 udev->address = USB_START_ADDR; /* default value */
1577 udev->plugtime = (usb_ticks_t)ticks;
1579 * We need to force the power mode to "on" because there are plenty
1580 * of USB devices out there that do not work very well with
1581 * automatic suspend and resume!
1583 udev->power_mode = usbd_filter_power_mode(udev, USB_POWER_MODE_ON);
1584 udev->pwr_save.last_xfer_time = ticks;
1585 /* we are not ready yet */
1588 /* set up default endpoint descriptor */
1589 udev->ctrl_ep_desc.bLength = sizeof(udev->ctrl_ep_desc);
1590 udev->ctrl_ep_desc.bDescriptorType = UDESC_ENDPOINT;
1591 udev->ctrl_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
1592 udev->ctrl_ep_desc.bmAttributes = UE_CONTROL;
1593 udev->ctrl_ep_desc.wMaxPacketSize[0] = USB_MAX_IPACKET;
1594 udev->ctrl_ep_desc.wMaxPacketSize[1] = 0;
1595 udev->ctrl_ep_desc.bInterval = 0;
1597 /* set up default endpoint companion descriptor */
1598 udev->ctrl_ep_comp_desc.bLength = sizeof(udev->ctrl_ep_comp_desc);
1599 udev->ctrl_ep_comp_desc.bDescriptorType = UDESC_ENDPOINT_SS_COMP;
1601 udev->ddesc.bMaxPacketSize = USB_MAX_IPACKET;
1603 udev->speed = speed;
1604 udev->flags.usb_mode = mode;
1606 /* search for our High Speed USB HUB, if any */
1609 hub = udev->parent_hub;
1612 if (hub->speed == USB_SPEED_HIGH) {
1613 udev->hs_hub_addr = hub->address;
1614 udev->parent_hs_hub = hub;
1615 udev->hs_port_no = adev->port_no;
1619 hub = hub->parent_hub;
1622 /* init the default endpoint */
1623 usb_init_endpoint(udev, 0,
1624 &udev->ctrl_ep_desc,
1625 &udev->ctrl_ep_comp_desc,
1628 /* set device index */
1629 udev->device_index = device_index;
1632 /* Create ugen name */
1633 snprintf(udev->ugen_name, sizeof(udev->ugen_name),
1634 USB_GENERIC_NAME "%u.%u", device_get_unit(bus->bdev),
1636 LIST_INIT(&udev->pd_list);
1638 /* Create the control endpoint device */
1639 udev->ctrl_dev = usb_make_dev(udev, NULL, 0, 0,
1640 FREAD|FWRITE, UID_ROOT, GID_OPERATOR, 0600);
1642 /* Create a link from /dev/ugenX.X to the default endpoint */
1643 if (udev->ctrl_dev != NULL)
1644 make_dev_alias(udev->ctrl_dev->cdev, "%s", udev->ugen_name);
1646 /* Initialise device */
1647 if (bus->methods->device_init != NULL) {
1648 err = (bus->methods->device_init) (udev);
1650 DPRINTFN(0, "device init %d failed "
1651 "(%s, ignored)\n", device_index,
1656 /* set powered device state after device init is complete */
1657 usb_set_device_state(udev, USB_STATE_POWERED);
1659 if (udev->flags.usb_mode == USB_MODE_HOST) {
1661 err = usbd_req_set_address(udev, NULL, device_index);
1664 * This is the new USB device address from now on, if
1665 * the set address request didn't set it already.
1667 if (udev->address == USB_START_ADDR)
1668 udev->address = device_index;
1671 * We ignore any set-address errors, hence there are
1672 * buggy USB devices out there that actually receive
1673 * the SETUP PID, but manage to set the address before
1674 * the STATUS stage is ACK'ed. If the device responds
1675 * to the subsequent get-descriptor at the new
1676 * address, then we know that the set-address command
1680 DPRINTFN(0, "set address %d failed "
1681 "(%s, ignored)\n", udev->address,
1685 /* We are not self powered */
1686 udev->flags.self_powered = 0;
1688 /* Set unconfigured state */
1689 udev->curr_config_no = USB_UNCONFIG_NO;
1690 udev->curr_config_index = USB_UNCONFIG_INDEX;
1692 /* Setup USB descriptors */
1693 err = (usb_temp_setup_by_index_p) (udev, usb_template);
1695 DPRINTFN(0, "setting up USB template failed maybe the USB "
1696 "template module has not been loaded\n");
1700 usb_set_device_state(udev, USB_STATE_ADDRESSED);
1702 /* setup the device descriptor and the initial "wMaxPacketSize" */
1703 err = usbd_setup_device_desc(udev, NULL);
1706 /* try to enumerate two more times */
1707 err = usbd_req_re_enumerate(udev, NULL);
1709 err = usbd_req_re_enumerate(udev, NULL);
1717 * Setup temporary USB attach args so that we can figure out some
1718 * basic quirks for this device.
1720 usb_init_attach_arg(udev, &uaa);
1722 if (usb_test_quirk(&uaa, UQ_BUS_POWERED)) {
1723 udev->flags.uq_bus_powered = 1;
1725 if (usb_test_quirk(&uaa, UQ_NO_STRINGS)) {
1726 udev->flags.no_strings = 1;
1729 * Workaround for buggy USB devices.
1731 * It appears that some string-less USB chips will crash and
1732 * disappear if any attempts are made to read any string
1735 * Try to detect such chips by checking the strings in the USB
1736 * device descriptor. If no strings are present there we
1737 * simply disable all USB strings.
1740 /* Protect scratch area */
1741 do_unlock = usbd_enum_lock(udev);
1743 scratch_ptr = udev->scratch.data;
1745 if (udev->ddesc.iManufacturer ||
1746 udev->ddesc.iProduct ||
1747 udev->ddesc.iSerialNumber) {
1748 /* read out the language ID string */
1749 err = usbd_req_get_string_desc(udev, NULL,
1750 (char *)scratch_ptr, 4, 0, USB_LANGUAGE_TABLE);
1752 err = USB_ERR_INVAL;
1755 if (err || (scratch_ptr[0] < 4)) {
1756 udev->flags.no_strings = 1;
1763 /* load preferred value and mask */
1765 mask = usb_lang_mask;
1767 /* align length correctly */
1768 scratch_ptr[0] &= ~1U;
1770 /* fix compiler warning */
1773 /* search for preferred language */
1774 for (x = 2; (x < scratch_ptr[0]); x += 2) {
1775 langid = UGETW(scratch_ptr + x);
1776 if ((langid & mask) == pref)
1779 if (x >= scratch_ptr[0]) {
1780 /* pick the first language as the default */
1781 DPRINTFN(1, "Using first language\n");
1782 langid = UGETW(scratch_ptr + 2);
1785 DPRINTFN(1, "Language selected: 0x%04x\n", langid);
1786 udev->langid = langid;
1790 usbd_enum_unlock(udev);
1792 /* assume 100mA bus powered for now. Changed when configured. */
1793 udev->power = USB_MIN_POWER;
1794 /* fetch the vendor and product strings from the device */
1795 usbd_set_device_strings(udev);
1797 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
1798 /* USB device mode setup is complete */
1804 * Most USB devices should attach to config index 0 by
1807 if (usb_test_quirk(&uaa, UQ_CFG_INDEX_0)) {
1810 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_1)) {
1813 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_2)) {
1816 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_3)) {
1819 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_4)) {
1827 set_config_failed = 0;
1830 DPRINTF("setting config %u\n", config_index);
1832 /* get the USB device configured */
1833 err = usbd_set_config_index(udev, config_index);
1835 if (udev->ddesc.bNumConfigurations != 0) {
1836 if (!set_config_failed) {
1837 set_config_failed = 1;
1838 /* XXX try to re-enumerate the device */
1839 err = usbd_req_re_enumerate(udev, NULL);
1841 goto repeat_set_config;
1843 DPRINTFN(0, "Failure selecting configuration index %u:"
1844 "%s, port %u, addr %u (ignored)\n",
1845 config_index, usbd_errstr(err), udev->port_no,
1849 * Some USB devices do not have any configurations. Ignore any
1850 * set config failures!
1855 if (!config_quirk && config_index + 1 < udev->ddesc.bNumConfigurations) {
1856 if ((udev->cdesc->bNumInterface < 2) &&
1857 usbd_get_no_descriptors(udev->cdesc, UDESC_ENDPOINT) == 0) {
1858 DPRINTFN(0, "Found no endpoints, trying next config\n");
1860 goto repeat_set_config;
1862 #if USB_HAVE_MSCTEST
1863 if (config_index == 0) {
1865 * Try to figure out if we have an
1866 * auto-install disk there:
1868 if (usb_iface_is_cdrom(udev, 0)) {
1869 DPRINTFN(0, "Found possible auto-install "
1870 "disk (trying next config)\n");
1872 goto repeat_set_config;
1877 #if USB_HAVE_MSCTEST
1878 if (set_config_failed == 0 && config_index == 0 &&
1879 usb_test_quirk(&uaa, UQ_MSC_NO_SYNC_CACHE) == 0 &&
1880 usb_test_quirk(&uaa, UQ_MSC_NO_GETMAXLUN) == 0) {
1883 * Try to figure out if there are any MSC quirks we
1884 * should apply automatically:
1886 err = usb_msc_auto_quirk(udev, 0);
1889 set_config_failed = 1;
1890 goto repeat_set_config;
1896 DPRINTF("new dev (addr %d), udev=%p, parent_hub=%p\n",
1897 udev->address, udev, udev->parent_hub);
1899 /* register our device - we are ready */
1900 usb_bus_port_set_device(bus, parent_hub ?
1901 parent_hub->hub->ports + port_index : NULL, udev, device_index);
1904 /* Symlink the ugen device name */
1905 udev->ugen_symlink = usb_alloc_symlink(udev->ugen_name);
1907 /* Announce device */
1908 printf("%s: <%s> at %s\n", udev->ugen_name,
1909 usb_get_manufacturer(udev),
1910 device_get_nameunit(udev->bus->bdev));
1914 usb_notify_addq("ATTACH", udev);
1919 * Free USB device and all subdevices, if any.
1921 usb_free_device(udev, 0);
1928 struct usb_fs_privdata *
1929 usb_make_dev(struct usb_device *udev, const char *devname, int ep,
1930 int fi, int rwmode, uid_t uid, gid_t gid, int mode)
1932 struct usb_fs_privdata* pd;
1935 /* Store information to locate ourselves again later */
1936 pd = malloc(sizeof(struct usb_fs_privdata), M_USBDEV,
1938 pd->bus_index = device_get_unit(udev->bus->bdev);
1939 pd->dev_index = udev->device_index;
1941 pd->fifo_index = fi;
1944 /* Now, create the device itself */
1945 if (devname == NULL) {
1947 snprintf(buffer, sizeof(buffer), USB_DEVICE_DIR "/%u.%u.%u",
1948 pd->bus_index, pd->dev_index, pd->ep_addr);
1951 pd->cdev = make_dev(&usb_devsw, 0, uid, gid, mode, "%s", devname);
1953 if (pd->cdev == NULL) {
1954 DPRINTFN(0, "Failed to create device %s\n", devname);
1959 /* XXX setting si_drv1 and creating the device is not atomic! */
1960 pd->cdev->si_drv1 = pd;
1966 usb_destroy_dev(struct usb_fs_privdata *pd)
1971 destroy_dev(pd->cdev);
1977 usb_cdev_create(struct usb_device *udev)
1979 struct usb_config_descriptor *cd;
1980 struct usb_endpoint_descriptor *ed;
1981 struct usb_descriptor *desc;
1982 struct usb_fs_privdata* pd;
1983 int inmode, outmode, inmask, outmask, mode;
1986 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("stale cdev entries"));
1988 DPRINTFN(2, "Creating device nodes\n");
1990 if (usbd_get_mode(udev) == USB_MODE_DEVICE) {
1993 } else { /* USB_MODE_HOST */
2003 * Collect all used endpoint numbers instead of just
2004 * generating 16 static endpoints.
2006 cd = usbd_get_config_descriptor(udev);
2007 while ((desc = usb_desc_foreach(cd, desc))) {
2008 /* filter out all endpoint descriptors */
2009 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
2010 (desc->bLength >= sizeof(*ed))) {
2011 ed = (struct usb_endpoint_descriptor *)desc;
2014 ep = ed->bEndpointAddress;
2015 if (UE_GET_DIR(ep) == UE_DIR_OUT)
2016 outmask |= 1 << UE_GET_ADDR(ep);
2018 inmask |= 1 << UE_GET_ADDR(ep);
2022 /* Create all available endpoints except EP0 */
2023 for (ep = 1; ep < 16; ep++) {
2024 mode = (inmask & (1 << ep)) ? inmode : 0;
2025 mode |= (outmask & (1 << ep)) ? outmode : 0;
2027 continue; /* no IN or OUT endpoint */
2029 pd = usb_make_dev(udev, NULL, ep, 0,
2030 mode, UID_ROOT, GID_OPERATOR, 0600);
2033 LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next);
2038 usb_cdev_free(struct usb_device *udev)
2040 struct usb_fs_privdata* pd;
2042 DPRINTFN(2, "Freeing device nodes\n");
2044 while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) {
2045 KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt"));
2047 LIST_REMOVE(pd, pd_next);
2049 usb_destroy_dev(pd);
2054 /*------------------------------------------------------------------------*
2057 * This function is NULL safe and will free an USB device and its
2058 * children devices, if any.
2060 * Flag values: Reserved, set to zero.
2061 *------------------------------------------------------------------------*/
2063 usb_free_device(struct usb_device *udev, uint8_t flag)
2065 struct usb_bus *bus;
2068 return; /* already freed */
2070 DPRINTFN(4, "udev=%p port=%d\n", udev, udev->port_no);
2073 usb_set_device_state(udev, USB_STATE_DETACHED);
2076 usb_notify_addq("DETACH", udev);
2080 printf("%s: <%s> at %s (disconnected)\n", udev->ugen_name,
2081 usb_get_manufacturer(udev), device_get_nameunit(bus->bdev));
2083 /* Destroy UGEN symlink, if any */
2084 if (udev->ugen_symlink) {
2085 usb_free_symlink(udev->ugen_symlink);
2086 udev->ugen_symlink = NULL;
2090 * Unregister our device first which will prevent any further
2093 usb_bus_port_set_device(bus, udev->parent_hub ?
2094 udev->parent_hub->hub->ports + udev->port_index : NULL,
2095 NULL, USB_ROOT_HUB_ADDR);
2098 /* wait for all pending references to go away: */
2099 mtx_lock(&usb_ref_lock);
2101 while (udev->refcount != 0) {
2102 cv_wait(&udev->ref_cv, &usb_ref_lock);
2104 mtx_unlock(&usb_ref_lock);
2106 usb_destroy_dev(udev->ctrl_dev);
2109 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
2110 /* stop receiving any control transfers (Device Side Mode) */
2111 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2114 /* the following will get the device unconfigured in software */
2115 usb_unconfigure(udev, USB_UNCFG_FLAG_FREE_EP0);
2117 /* unsetup any leftover default USB transfers */
2118 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2120 /* template unsetup, if any */
2121 (usb_temp_unsetup_p) (udev);
2124 * Make sure that our clear-stall messages are not queued
2127 USB_BUS_LOCK(udev->bus);
2128 usb_proc_mwait(USB_BUS_NON_GIANT_PROC(udev->bus),
2129 &udev->cs_msg[0], &udev->cs_msg[1]);
2130 USB_BUS_UNLOCK(udev->bus);
2132 sx_destroy(&udev->enum_sx);
2133 sx_destroy(&udev->sr_sx);
2135 cv_destroy(&udev->ctrlreq_cv);
2136 cv_destroy(&udev->ref_cv);
2138 mtx_destroy(&udev->device_mtx);
2140 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("leaked cdev entries"));
2143 /* Uninitialise device */
2144 if (bus->methods->device_uninit != NULL)
2145 (bus->methods->device_uninit) (udev);
2148 free(udev->serial, M_USB);
2149 free(udev->manufacturer, M_USB);
2150 free(udev->product, M_USB);
2154 /*------------------------------------------------------------------------*
2157 * This function is the safe way to get the USB interface structure
2158 * pointer by interface index.
2161 * NULL: Interface not present.
2162 * Else: Pointer to USB interface structure.
2163 *------------------------------------------------------------------------*/
2164 struct usb_interface *
2165 usbd_get_iface(struct usb_device *udev, uint8_t iface_index)
2167 struct usb_interface *iface = udev->ifaces + iface_index;
2169 if (iface_index >= udev->ifaces_max)
2174 /*------------------------------------------------------------------------*
2175 * usbd_find_descriptor
2177 * This function will lookup the first descriptor that matches the
2178 * criteria given by the arguments "type" and "subtype". Descriptors
2179 * will only be searched within the interface having the index
2180 * "iface_index". If the "id" argument points to an USB descriptor,
2181 * it will be skipped before the search is started. This allows
2182 * searching for multiple descriptors using the same criteria. Else
2183 * the search is started after the interface descriptor.
2186 * NULL: End of descriptors
2187 * Else: A descriptor matching the criteria
2188 *------------------------------------------------------------------------*/
2190 usbd_find_descriptor(struct usb_device *udev, void *id, uint8_t iface_index,
2191 uint8_t type, uint8_t type_mask,
2192 uint8_t subtype, uint8_t subtype_mask)
2194 struct usb_descriptor *desc;
2195 struct usb_config_descriptor *cd;
2196 struct usb_interface *iface;
2198 cd = usbd_get_config_descriptor(udev);
2203 iface = usbd_get_iface(udev, iface_index);
2204 if (iface == NULL) {
2207 id = usbd_get_interface_descriptor(iface);
2214 while ((desc = usb_desc_foreach(cd, desc))) {
2216 if (desc->bDescriptorType == UDESC_INTERFACE) {
2219 if (((desc->bDescriptorType & type_mask) == type) &&
2220 ((desc->bDescriptorSubtype & subtype_mask) == subtype)) {
2227 /*------------------------------------------------------------------------*
2230 * This function will dump information from the device descriptor
2231 * belonging to the USB device pointed to by "udev", to the string
2232 * pointed to by "dst_ptr" having a maximum length of "dst_len" bytes
2233 * including the terminating zero.
2234 *------------------------------------------------------------------------*/
2236 usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len)
2238 struct usb_device_descriptor *udd = &udev->ddesc;
2242 bcdUSB = UGETW(udd->bcdUSB);
2243 bcdDevice = UGETW(udd->bcdDevice);
2245 if (udd->bDeviceClass != 0xFF) {
2246 snprintf(dst_ptr, dst_len, "%s %s, class %d/%d, rev %x.%02x/"
2248 usb_get_manufacturer(udev),
2249 usb_get_product(udev),
2250 udd->bDeviceClass, udd->bDeviceSubClass,
2251 (bcdUSB >> 8), bcdUSB & 0xFF,
2252 (bcdDevice >> 8), bcdDevice & 0xFF,
2255 snprintf(dst_ptr, dst_len, "%s %s, rev %x.%02x/"
2257 usb_get_manufacturer(udev),
2258 usb_get_product(udev),
2259 (bcdUSB >> 8), bcdUSB & 0xFF,
2260 (bcdDevice >> 8), bcdDevice & 0xFF,
2267 * Descriptions of of known vendors and devices ("products").
2269 struct usb_knowndev {
2273 const char *vendorname;
2274 const char *productname;
2277 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
2279 #include "usbdevs.h"
2280 #include "usbdevs_data.h"
2281 #endif /* USB_VERBOSE */
2284 usbd_set_device_strings(struct usb_device *udev)
2286 struct usb_device_descriptor *udd = &udev->ddesc;
2288 const struct usb_knowndev *kdp;
2293 uint16_t product_id;
2296 /* Protect scratch area */
2297 do_unlock = usbd_enum_lock(udev);
2299 temp_ptr = (char *)udev->scratch.data;
2300 temp_size = sizeof(udev->scratch.data);
2302 vendor_id = UGETW(udd->idVendor);
2303 product_id = UGETW(udd->idProduct);
2305 /* get serial number string */
2306 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2307 udev->ddesc.iSerialNumber);
2308 udev->serial = strdup(temp_ptr, M_USB);
2310 /* get manufacturer string */
2311 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2312 udev->ddesc.iManufacturer);
2313 usb_trim_spaces(temp_ptr);
2314 if (temp_ptr[0] != '\0')
2315 udev->manufacturer = strdup(temp_ptr, M_USB);
2317 /* get product string */
2318 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2319 udev->ddesc.iProduct);
2320 usb_trim_spaces(temp_ptr);
2321 if (temp_ptr[0] != '\0')
2322 udev->product = strdup(temp_ptr, M_USB);
2325 if (udev->manufacturer == NULL || udev->product == NULL) {
2326 for (kdp = usb_knowndevs; kdp->vendorname != NULL; kdp++) {
2327 if (kdp->vendor == vendor_id &&
2328 (kdp->product == product_id ||
2329 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
2332 if (kdp->vendorname != NULL) {
2333 /* XXX should use pointer to knowndevs string */
2334 if (udev->manufacturer == NULL) {
2335 udev->manufacturer = strdup(kdp->vendorname,
2338 if (udev->product == NULL &&
2339 (kdp->flags & USB_KNOWNDEV_NOPROD) == 0) {
2340 udev->product = strdup(kdp->productname,
2346 /* Provide default strings if none were found */
2347 if (udev->manufacturer == NULL) {
2348 snprintf(temp_ptr, temp_size, "vendor 0x%04x", vendor_id);
2349 udev->manufacturer = strdup(temp_ptr, M_USB);
2351 if (udev->product == NULL) {
2352 snprintf(temp_ptr, temp_size, "product 0x%04x", product_id);
2353 udev->product = strdup(temp_ptr, M_USB);
2357 usbd_enum_unlock(udev);
2365 usbd_get_mode(struct usb_device *udev)
2367 return (udev->flags.usb_mode);
2372 * See: USB_SPEED_XXX
2375 usbd_get_speed(struct usb_device *udev)
2377 return (udev->speed);
2381 usbd_get_isoc_fps(struct usb_device *udev)
2384 switch (udev->speed) {
2386 case USB_SPEED_FULL:
2393 struct usb_device_descriptor *
2394 usbd_get_device_descriptor(struct usb_device *udev)
2397 return (NULL); /* be NULL safe */
2398 return (&udev->ddesc);
2401 struct usb_config_descriptor *
2402 usbd_get_config_descriptor(struct usb_device *udev)
2405 return (NULL); /* be NULL safe */
2406 return (udev->cdesc);
2409 /*------------------------------------------------------------------------*
2410 * usb_test_quirk - test a device for a given quirk
2413 * 0: The USB device does not have the given quirk.
2414 * Else: The USB device has the given quirk.
2415 *------------------------------------------------------------------------*/
2417 usb_test_quirk(const struct usb_attach_arg *uaa, uint16_t quirk)
2422 if (quirk == UQ_NONE)
2425 /* search the automatic per device quirks first */
2427 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2428 if (uaa->device->autoQuirk[x] == quirk)
2432 /* search global quirk table, if any */
2434 found = (usb_test_quirk_p) (&uaa->info, quirk);
2439 struct usb_interface_descriptor *
2440 usbd_get_interface_descriptor(struct usb_interface *iface)
2443 return (NULL); /* be NULL safe */
2444 return (iface->idesc);
2448 usbd_get_interface_altindex(struct usb_interface *iface)
2450 return (iface->alt_index);
2454 usbd_get_bus_index(struct usb_device *udev)
2456 return ((uint8_t)device_get_unit(udev->bus->bdev));
2460 usbd_get_device_index(struct usb_device *udev)
2462 return (udev->device_index);
2467 usb_notify_addq(const char *type, struct usb_device *udev)
2469 struct usb_interface *iface;
2473 /* announce the device */
2474 sb = sbuf_new_auto();
2483 "devsubclass=0x%02x "
2496 UGETW(udev->ddesc.idVendor),
2497 UGETW(udev->ddesc.idProduct),
2498 udev->ddesc.bDeviceClass,
2499 udev->ddesc.bDeviceSubClass,
2500 usb_get_serial(udev),
2501 UGETW(udev->ddesc.bcdDevice),
2502 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2505 , udev->parent_hub != NULL ?
2506 udev->parent_hub->ugen_name :
2507 device_get_nameunit(device_get_parent(udev->bus->bdev))
2511 devctl_notify("USB", "DEVICE", type, sbuf_data(sb));
2514 /* announce each interface */
2515 for (i = 0; i < USB_IFACE_MAX; i++) {
2516 iface = usbd_get_iface(udev, i);
2518 break; /* end of interfaces */
2519 if (iface->idesc == NULL)
2520 continue; /* no interface descriptor */
2522 sb = sbuf_new_auto();
2531 "devsubclass=0x%02x "
2538 "intsubclass=0x%02x "
2539 "intprotocol=0x%02x",
2544 UGETW(udev->ddesc.idVendor),
2545 UGETW(udev->ddesc.idProduct),
2546 udev->ddesc.bDeviceClass,
2547 udev->ddesc.bDeviceSubClass,
2548 usb_get_serial(udev),
2549 UGETW(udev->ddesc.bcdDevice),
2550 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2551 iface->idesc->bInterfaceNumber,
2552 iface->idesc->bNumEndpoints,
2553 iface->idesc->bInterfaceClass,
2554 iface->idesc->bInterfaceSubClass,
2555 iface->idesc->bInterfaceProtocol);
2557 devctl_notify("USB", "INTERFACE", type, sbuf_data(sb));
2564 /*------------------------------------------------------------------------*
2565 * usb_fifo_free_wrap
2567 * This function will free the FIFOs.
2569 * Description of "flag" argument: If the USB_UNCFG_FLAG_FREE_EP0 flag
2570 * is set and "iface_index" is set to "USB_IFACE_INDEX_ANY", we free
2571 * all FIFOs. If the USB_UNCFG_FLAG_FREE_EP0 flag is not set and
2572 * "iface_index" is set to "USB_IFACE_INDEX_ANY", we free all non
2573 * control endpoint FIFOs. If "iface_index" is not set to
2574 * "USB_IFACE_INDEX_ANY" the flag has no effect.
2575 *------------------------------------------------------------------------*/
2577 usb_fifo_free_wrap(struct usb_device *udev,
2578 uint8_t iface_index, uint8_t flag)
2584 * Free any USB FIFOs on the given interface:
2586 for (i = 0; i != USB_FIFO_MAX; i++) {
2591 /* Check if the interface index matches */
2592 if (iface_index == f->iface_index) {
2593 if (f->methods != &usb_ugen_methods) {
2595 * Don't free any non-generic FIFOs in
2600 if ((f->dev_ep_index == 0) &&
2601 (f->fs_xfer == NULL)) {
2602 /* no need to free this FIFO */
2605 } else if (iface_index == USB_IFACE_INDEX_ANY) {
2606 if ((f->methods == &usb_ugen_methods) &&
2607 (f->dev_ep_index == 0) &&
2608 (!(flag & USB_UNCFG_FLAG_FREE_EP0)) &&
2609 (f->fs_xfer == NULL)) {
2610 /* no need to free this FIFO */
2614 /* no need to free this FIFO */
2617 /* free this FIFO */
2623 /*------------------------------------------------------------------------*
2624 * usb_peer_can_wakeup
2627 * 0: Peer cannot do resume signalling.
2628 * Else: Peer can do resume signalling.
2629 *------------------------------------------------------------------------*/
2631 usb_peer_can_wakeup(struct usb_device *udev)
2633 const struct usb_config_descriptor *cdp;
2636 if ((cdp != NULL) && (udev->flags.usb_mode == USB_MODE_HOST)) {
2637 return (cdp->bmAttributes & UC_REMOTE_WAKEUP);
2639 return (0); /* not supported */
2643 usb_set_device_state(struct usb_device *udev, enum usb_dev_state state)
2646 KASSERT(state < USB_STATE_MAX, ("invalid udev state"));
2648 DPRINTF("udev %p state %s -> %s\n", udev,
2649 usb_statestr(udev->state), usb_statestr(state));
2650 udev->state = state;
2652 if (udev->bus->methods->device_state_change != NULL)
2653 (udev->bus->methods->device_state_change) (udev);
2657 usb_get_device_state(struct usb_device *udev)
2660 return (USB_STATE_DETACHED);
2661 return (udev->state);
2665 usbd_device_attached(struct usb_device *udev)
2667 return (udev->state > USB_STATE_DETACHED);
2671 * The following function locks enumerating the given USB device. If
2672 * the lock is already grabbed this function returns zero. Else a
2673 * non-zero value is returned.
2676 usbd_enum_lock(struct usb_device *udev)
2678 if (sx_xlocked(&udev->enum_sx))
2681 sx_xlock(&udev->enum_sx);
2682 sx_xlock(&udev->sr_sx);
2684 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2685 * are locked before locking Giant. Else the lock can be
2686 * locked multiple times.
2692 /* The following function unlocks enumerating the given USB device. */
2695 usbd_enum_unlock(struct usb_device *udev)
2698 sx_xunlock(&udev->enum_sx);
2699 sx_xunlock(&udev->sr_sx);
2702 /* The following function locks suspend and resume. */
2705 usbd_sr_lock(struct usb_device *udev)
2707 sx_xlock(&udev->sr_sx);
2709 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2710 * are locked before locking Giant. Else the lock can be
2711 * locked multiple times.
2716 /* The following function unlocks suspend and resume. */
2719 usbd_sr_unlock(struct usb_device *udev)
2722 sx_xunlock(&udev->sr_sx);
2726 * The following function checks the enumerating lock for the given
2731 usbd_enum_is_locked(struct usb_device *udev)
2733 return (sx_xlocked(&udev->enum_sx));
2737 * The following function is used to set the per-interface specific
2738 * plug and play information. The string referred to by the pnpinfo
2739 * argument can safely be freed after calling this function. The
2740 * pnpinfo of an interface will be reset at device detach or when
2741 * passing a NULL argument to this function. This function
2742 * returns zero on success, else a USB_ERR_XXX failure code.
2746 usbd_set_pnpinfo(struct usb_device *udev, uint8_t iface_index, const char *pnpinfo)
2748 struct usb_interface *iface;
2750 iface = usbd_get_iface(udev, iface_index);
2752 return (USB_ERR_INVAL);
2754 if (iface->pnpinfo != NULL) {
2755 free(iface->pnpinfo, M_USBDEV);
2756 iface->pnpinfo = NULL;
2759 if (pnpinfo == NULL || pnpinfo[0] == 0)
2760 return (0); /* success */
2762 iface->pnpinfo = strdup(pnpinfo, M_USBDEV);
2763 if (iface->pnpinfo == NULL)
2764 return (USB_ERR_NOMEM);
2766 return (0); /* success */
2770 usbd_add_dynamic_quirk(struct usb_device *udev, uint16_t quirk)
2774 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2775 if (udev->autoQuirk[x] == 0 ||
2776 udev->autoQuirk[x] == quirk) {
2777 udev->autoQuirk[x] = quirk;
2778 return (0); /* success */
2781 return (USB_ERR_NOMEM);
2785 * The following function is used to select the endpoint mode. It
2786 * should not be called outside enumeration context.
2790 usbd_set_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep,
2796 /* Prevent re-enumeration */
2797 do_unlock = usbd_enum_lock(udev);
2799 if (udev->bus->methods->set_endpoint_mode != NULL) {
2800 error = (udev->bus->methods->set_endpoint_mode) (
2802 } else if (ep_mode != USB_EP_MODE_DEFAULT) {
2803 error = USB_ERR_INVAL;
2808 /* only set new mode regardless of error */
2809 ep->ep_mode = ep_mode;
2812 usbd_enum_unlock(udev);
2817 usbd_get_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep)
2819 return (ep->ep_mode);