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/stddef.h>
29 #include <sys/param.h>
30 #include <sys/queue.h>
31 #include <sys/types.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
35 #include <sys/module.h>
37 #include <sys/mutex.h>
38 #include <sys/condvar.h>
39 #include <sys/sysctl.h>
41 #include <sys/unistd.h>
42 #include <sys/callout.h>
43 #include <sys/malloc.h>
46 #include <sys/fcntl.h>
48 #include <dev/usb/usb.h>
49 #include <dev/usb/usbdi.h>
50 #include <dev/usb/usbdi_util.h>
51 #include <dev/usb/usb_ioctl.h>
59 #define USB_DEBUG_VAR usb_debug
61 #include <dev/usb/usb_core.h>
62 #include <dev/usb/usb_debug.h>
63 #include <dev/usb/usb_process.h>
64 #include <dev/usb/usb_device.h>
65 #include <dev/usb/usb_busdma.h>
66 #include <dev/usb/usb_transfer.h>
67 #include <dev/usb/usb_request.h>
68 #include <dev/usb/usb_dynamic.h>
69 #include <dev/usb/usb_hub.h>
70 #include <dev/usb/usb_util.h>
71 #include <dev/usb/usb_msctest.h>
73 #include <dev/usb/usb_dev.h>
74 #include <dev/usb/usb_generic.h>
77 #include <dev/usb/quirk/usb_quirk.h>
79 #include <dev/usb/usb_controller.h>
80 #include <dev/usb/usb_bus.h>
82 /* function prototypes */
84 static void usb_init_endpoint(struct usb_device *, uint8_t,
85 struct usb_endpoint_descriptor *,
86 struct usb_endpoint_ss_comp_descriptor *,
87 struct usb_endpoint *);
88 static void usb_unconfigure(struct usb_device *, uint8_t);
89 static void usb_detach_device_sub(struct usb_device *, device_t *,
91 static uint8_t usb_probe_and_attach_sub(struct usb_device *,
92 struct usb_attach_arg *);
93 static void usb_init_attach_arg(struct usb_device *,
94 struct usb_attach_arg *);
95 static void usb_suspend_resume_sub(struct usb_device *, device_t,
97 static usb_proc_callback_t usbd_clear_stall_proc;
98 static usb_error_t usb_config_parse(struct usb_device *, uint8_t, uint8_t);
99 static void usbd_set_device_strings(struct usb_device *);
101 static void usb_notify_addq(const char *type, struct usb_device *);
104 static void usb_fifo_free_wrap(struct usb_device *, uint8_t, uint8_t);
105 static void usb_cdev_create(struct usb_device *);
106 static void usb_cdev_free(struct usb_device *);
109 /* This variable is global to allow easy access to it: */
111 int usb_template = 0;
113 TUNABLE_INT("hw.usb.usb_template", &usb_template);
114 SYSCTL_INT(_hw_usb, OID_AUTO, template, CTLFLAG_RW | CTLFLAG_TUN,
115 &usb_template, 0, "Selected USB device side template");
117 /* English is default language */
119 static int usb_lang_id = 0x0009;
120 static int usb_lang_mask = 0x00FF;
122 TUNABLE_INT("hw.usb.usb_lang_id", &usb_lang_id);
123 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_id, CTLFLAG_RW | CTLFLAG_TUN,
124 &usb_lang_id, 0, "Preferred USB language ID");
126 TUNABLE_INT("hw.usb.usb_lang_mask", &usb_lang_mask);
127 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_mask, CTLFLAG_RW | CTLFLAG_TUN,
128 &usb_lang_mask, 0, "Preferred USB language mask");
130 static const char* statestr[USB_STATE_MAX] = {
131 [USB_STATE_DETACHED] = "DETACHED",
132 [USB_STATE_ATTACHED] = "ATTACHED",
133 [USB_STATE_POWERED] = "POWERED",
134 [USB_STATE_ADDRESSED] = "ADDRESSED",
135 [USB_STATE_CONFIGURED] = "CONFIGURED",
139 usb_statestr(enum usb_dev_state state)
141 return ((state < USB_STATE_MAX) ? statestr[state] : "UNKNOWN");
145 usb_get_manufacturer(struct usb_device *udev)
147 return (udev->manufacturer ? udev->manufacturer : "Unknown");
151 usb_get_product(struct usb_device *udev)
153 return (udev->product ? udev->product : "");
157 usb_get_serial(struct usb_device *udev)
159 return (udev->serial ? udev->serial : "");
162 /*------------------------------------------------------------------------*
163 * usbd_get_ep_by_addr
165 * This function searches for an USB ep by endpoint address and
171 *------------------------------------------------------------------------*/
172 struct usb_endpoint *
173 usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val)
175 struct usb_endpoint *ep = udev->endpoints;
176 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
178 EA_MASK = (UE_DIR_IN | UE_DIR_OUT | UE_ADDR),
182 * According to the USB specification not all bits are used
183 * for the endpoint address. Keep defined bits only:
188 * Iterate accross all the USB endpoints searching for a match
189 * based on the endpoint address:
191 for (; ep != ep_end; ep++) {
193 if (ep->edesc == NULL) {
196 /* do the mask and check the value */
197 if ((ep->edesc->bEndpointAddress & EA_MASK) == ea_val) {
203 * The default endpoint is always present and is checked separately:
205 if ((udev->ctrl_ep.edesc) &&
206 ((udev->ctrl_ep.edesc->bEndpointAddress & EA_MASK) == ea_val)) {
216 /*------------------------------------------------------------------------*
219 * This function searches for an USB endpoint based on the information
220 * given by the passed "struct usb_config" pointer.
224 * Else: Pointer to "struct usb_endpoint".
225 *------------------------------------------------------------------------*/
226 struct usb_endpoint *
227 usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
228 const struct usb_config *setup)
230 struct usb_endpoint *ep = udev->endpoints;
231 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
232 uint8_t index = setup->ep_index;
238 DPRINTFN(10, "udev=%p iface_index=%d address=0x%x "
239 "type=0x%x dir=0x%x index=%d\n",
240 udev, iface_index, setup->endpoint,
241 setup->type, setup->direction, setup->ep_index);
245 if (setup->usb_mode != USB_MODE_DUAL &&
246 udev->flags.usb_mode != setup->usb_mode) {
247 /* wrong mode - no endpoint */
251 /* setup expected endpoint direction mask and value */
253 if (setup->direction == UE_DIR_RX) {
254 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
255 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
256 UE_DIR_OUT : UE_DIR_IN;
257 } else if (setup->direction == UE_DIR_TX) {
258 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
259 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
260 UE_DIR_IN : UE_DIR_OUT;
261 } else if (setup->direction == UE_DIR_ANY) {
262 /* match any endpoint direction */
266 /* match the given endpoint direction */
267 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
268 ea_val = (setup->direction & (UE_DIR_IN | UE_DIR_OUT));
271 /* setup expected endpoint address */
273 if (setup->endpoint == UE_ADDR_ANY) {
274 /* match any endpoint address */
276 /* match the given endpoint address */
278 ea_val |= (setup->endpoint & UE_ADDR);
281 /* setup expected endpoint type */
283 if (setup->type == UE_BULK_INTR) {
284 /* this will match BULK and INTERRUPT endpoints */
287 } else if (setup->type == UE_TYPE_ANY) {
288 /* match any endpoint type */
292 /* match the given endpoint type */
293 type_mask = UE_XFERTYPE;
294 type_val = (setup->type & UE_XFERTYPE);
298 * Iterate accross all the USB endpoints searching for a match
299 * based on the endpoint address. Note that we are searching
300 * the endpoints from the beginning of the "udev->endpoints" array.
302 for (; ep != ep_end; ep++) {
304 if ((ep->edesc == NULL) ||
305 (ep->iface_index != iface_index)) {
308 /* do the masks and check the values */
310 if (((ep->edesc->bEndpointAddress & ea_mask) == ea_val) &&
311 ((ep->edesc->bmAttributes & type_mask) == type_val)) {
319 * Match against default endpoint last, so that "any endpoint", "any
320 * address" and "any direction" returns the first endpoint of the
321 * interface. "iface_index" and "direction" is ignored:
323 if ((udev->ctrl_ep.edesc) &&
324 ((udev->ctrl_ep.edesc->bEndpointAddress & ea_mask) == ea_val) &&
325 ((udev->ctrl_ep.edesc->bmAttributes & type_mask) == type_val) &&
336 /*------------------------------------------------------------------------*
337 * usbd_interface_count
339 * This function stores the number of USB interfaces excluding
340 * alternate settings, which the USB config descriptor reports into
341 * the unsigned 8-bit integer pointed to by "count".
346 *------------------------------------------------------------------------*/
348 usbd_interface_count(struct usb_device *udev, uint8_t *count)
350 if (udev->cdesc == NULL) {
352 return (USB_ERR_NOT_CONFIGURED);
354 *count = udev->ifaces_max;
355 return (USB_ERR_NORMAL_COMPLETION);
359 /*------------------------------------------------------------------------*
362 * This function will initialise the USB endpoint structure pointed to by
363 * the "endpoint" argument. The structure pointed to by "endpoint" must be
364 * zeroed before calling this function.
365 *------------------------------------------------------------------------*/
367 usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
368 struct usb_endpoint_descriptor *edesc,
369 struct usb_endpoint_ss_comp_descriptor *ecomp,
370 struct usb_endpoint *ep)
372 struct usb_bus_methods *methods;
374 methods = udev->bus->methods;
376 (methods->endpoint_init) (udev, edesc, ep);
378 /* initialise USB endpoint structure */
381 ep->iface_index = iface_index;
382 TAILQ_INIT(&ep->endpoint_q.head);
383 ep->endpoint_q.command = &usbd_pipe_start;
385 /* the pipe is not supported by the hardware */
386 if (ep->methods == NULL)
389 /* clear stall, if any */
390 if (methods->clear_stall != NULL) {
391 USB_BUS_LOCK(udev->bus);
392 (methods->clear_stall) (udev, ep);
393 USB_BUS_UNLOCK(udev->bus);
397 /*-----------------------------------------------------------------------*
398 * usb_endpoint_foreach
400 * This function will iterate all the USB endpoints except the control
401 * endpoint. This function is NULL safe.
404 * NULL: End of USB endpoints
405 * Else: Pointer to next USB endpoint
406 *------------------------------------------------------------------------*/
407 struct usb_endpoint *
408 usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
410 struct usb_endpoint *ep_end;
416 ep_end = udev->endpoints + udev->endpoints_max;
418 /* get next endpoint */
420 ep = udev->endpoints;
424 /* find next allocated ep */
425 while (ep != ep_end) {
426 if (ep->edesc != NULL)
433 /*------------------------------------------------------------------------*
434 * usb_wait_pending_ref_locked
436 * This function will wait for any USB references to go away before
437 * returning and disable further USB device refcounting on the
438 * specified USB device. This function is used when detaching a USB
440 *------------------------------------------------------------------------*/
442 usb_wait_pending_ref_locked(struct usb_device *udev)
445 const uint16_t refcount =
446 usb_proc_is_called_from(
447 &udev->bus->explore_proc) ? 1 : 2;
449 DPRINTF("Refcount = %d\n", (int)refcount);
452 /* wait for any pending references to go away */
453 mtx_lock(&usb_ref_lock);
454 if (udev->refcount == refcount) {
455 /* prevent further refs being taken */
456 udev->refcount = USB_DEV_REF_MAX;
457 mtx_unlock(&usb_ref_lock);
460 usbd_enum_unlock(udev);
461 cv_wait(&udev->ref_cv, &usb_ref_lock);
462 mtx_unlock(&usb_ref_lock);
463 (void) usbd_enum_lock(udev);
468 /*------------------------------------------------------------------------*
469 * usb_ref_restore_locked
471 * This function will restore the reference count value after a call
472 * to "usb_wait_pending_ref_locked()".
473 *------------------------------------------------------------------------*/
475 usb_ref_restore_locked(struct usb_device *udev)
478 const uint16_t refcount =
479 usb_proc_is_called_from(
480 &udev->bus->explore_proc) ? 1 : 2;
482 DPRINTF("Refcount = %d\n", (int)refcount);
484 /* restore reference count and wakeup waiters, if any */
485 mtx_lock(&usb_ref_lock);
486 udev->refcount = refcount;
487 cv_broadcast(&udev->ref_cv);
488 mtx_unlock(&usb_ref_lock);
492 /*------------------------------------------------------------------------*
495 * This function will free all USB interfaces and USB endpoints belonging
498 * Flag values, see "USB_UNCFG_FLAG_XXX".
499 *------------------------------------------------------------------------*/
501 usb_unconfigure(struct usb_device *udev, uint8_t flag)
505 /* Prevent re-enumeration */
506 do_unlock = usbd_enum_lock(udev);
508 /* detach all interface drivers */
509 usb_detach_device(udev, USB_IFACE_INDEX_ANY, flag);
512 /* free all FIFOs except control endpoint FIFOs */
513 usb_fifo_free_wrap(udev, USB_IFACE_INDEX_ANY, flag);
516 * Free all cdev's, if any.
521 #if USB_HAVE_COMPAT_LINUX
522 /* free Linux compat device, if any */
523 if (udev->linux_endpoint_start) {
524 usb_linux_free_device(udev);
525 udev->linux_endpoint_start = NULL;
529 usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_FREE);
531 /* free "cdesc" after "ifaces" and "endpoints", if any */
532 if (udev->cdesc != NULL) {
533 if (udev->flags.usb_mode != USB_MODE_DEVICE)
534 free(udev->cdesc, M_USB);
537 /* set unconfigured state */
538 udev->curr_config_no = USB_UNCONFIG_NO;
539 udev->curr_config_index = USB_UNCONFIG_INDEX;
542 usbd_enum_unlock(udev);
545 /*------------------------------------------------------------------------*
546 * usbd_set_config_index
548 * This function selects configuration by index, independent of the
549 * actual configuration number. This function should not be used by
555 *------------------------------------------------------------------------*/
557 usbd_set_config_index(struct usb_device *udev, uint8_t index)
559 struct usb_status ds;
560 struct usb_config_descriptor *cdp;
567 DPRINTFN(6, "udev=%p index=%d\n", udev, index);
569 /* Prevent re-enumeration */
570 do_unlock = usbd_enum_lock(udev);
572 usb_unconfigure(udev, 0);
574 if (index == USB_UNCONFIG_INDEX) {
576 * Leave unallocated when unconfiguring the
577 * device. "usb_unconfigure()" will also reset
578 * the current config number and index.
580 err = usbd_req_set_config(udev, NULL, USB_UNCONFIG_NO);
581 if (udev->state == USB_STATE_CONFIGURED)
582 usb_set_device_state(udev, USB_STATE_ADDRESSED);
585 /* get the full config descriptor */
586 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
587 /* save some memory */
588 err = usbd_req_get_descriptor_ptr(udev, &cdp,
589 (UDESC_CONFIG << 8) | index);
592 err = usbd_req_get_config_desc_full(udev,
593 NULL, &cdp, M_USB, index);
598 /* set the new config descriptor */
602 /* Figure out if the device is self or bus powered. */
604 if ((!udev->flags.uq_bus_powered) &&
605 (cdp->bmAttributes & UC_SELF_POWERED) &&
606 (udev->flags.usb_mode == USB_MODE_HOST)) {
607 /* May be self powered. */
608 if (cdp->bmAttributes & UC_BUS_POWERED) {
609 /* Must ask device. */
610 err = usbd_req_get_device_status(udev, NULL, &ds);
612 DPRINTFN(0, "could not read "
613 "device status: %s\n",
615 } else if (UGETW(ds.wStatus) & UDS_SELF_POWERED) {
618 DPRINTF("status=0x%04x \n",
623 DPRINTF("udev=%p cdesc=%p (addr %d) cno=%d attr=0x%02x, "
624 "selfpowered=%d, power=%d\n",
626 udev->address, cdp->bConfigurationValue, cdp->bmAttributes,
627 selfpowered, cdp->bMaxPower * 2);
629 /* Check if we have enough power. */
630 power = cdp->bMaxPower * 2;
632 if (udev->parent_hub) {
633 max_power = udev->parent_hub->hub->portpower;
635 max_power = USB_MAX_POWER;
638 if (power > max_power) {
639 DPRINTFN(0, "power exceeded %d > %d\n", power, max_power);
640 err = USB_ERR_NO_POWER;
643 /* Only update "self_powered" in USB Host Mode */
644 if (udev->flags.usb_mode == USB_MODE_HOST) {
645 udev->flags.self_powered = selfpowered;
648 udev->curr_config_no = cdp->bConfigurationValue;
649 udev->curr_config_index = index;
650 usb_set_device_state(udev, USB_STATE_CONFIGURED);
652 /* Set the actual configuration value. */
653 err = usbd_req_set_config(udev, NULL, cdp->bConfigurationValue);
658 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_ALLOC);
663 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_INIT);
669 /* create device nodes for each endpoint */
670 usb_cdev_create(udev);
674 DPRINTF("error=%s\n", usbd_errstr(err));
676 usb_unconfigure(udev, 0);
679 usbd_enum_unlock(udev);
683 /*------------------------------------------------------------------------*
686 * This function will allocate and free USB interfaces and USB endpoints,
687 * parse the USB configuration structure and initialise the USB endpoints
688 * and interfaces. If "iface_index" is not equal to
689 * "USB_IFACE_INDEX_ANY" then the "cmd" parameter is the
690 * alternate_setting to be selected for the given interface. Else the
691 * "cmd" parameter is defined by "USB_CFG_XXX". "iface_index" can be
692 * "USB_IFACE_INDEX_ANY" or a valid USB interface index. This function
693 * is typically called when setting the configuration or when setting
694 * an alternate interface.
699 *------------------------------------------------------------------------*/
701 usb_config_parse(struct usb_device *udev, uint8_t iface_index, uint8_t cmd)
703 struct usb_idesc_parse_state ips;
704 struct usb_interface_descriptor *id;
705 struct usb_endpoint_descriptor *ed;
706 struct usb_interface *iface;
707 struct usb_endpoint *ep;
715 if (iface_index != USB_IFACE_INDEX_ANY) {
716 /* parameter overload */
726 DPRINTFN(5, "iface_index=%d cmd=%d\n",
729 if (cmd == USB_CFG_FREE)
732 if (cmd == USB_CFG_INIT) {
733 sx_assert(&udev->enum_sx, SA_LOCKED);
735 /* check for in-use endpoints */
737 ep = udev->endpoints;
738 ep_max = udev->endpoints_max;
740 /* look for matching endpoints */
741 if ((iface_index == USB_IFACE_INDEX_ANY) ||
742 (iface_index == ep->iface_index)) {
743 if (ep->refcount_alloc != 0) {
745 * This typically indicates a
746 * more serious error.
748 err = USB_ERR_IN_USE;
751 memset(ep, 0, sizeof(*ep));
752 /* make sure we don't zero the endpoint again */
753 ep->iface_index = USB_IFACE_INDEX_ANY;
763 memset(&ips, 0, sizeof(ips));
768 while ((id = usb_idesc_foreach(udev->cdesc, &ips))) {
770 /* check for interface overflow */
771 if (ips.iface_index == USB_IFACE_MAX)
774 iface = udev->ifaces + ips.iface_index;
776 /* check for specific interface match */
778 if (cmd == USB_CFG_INIT) {
779 if ((iface_index != USB_IFACE_INDEX_ANY) &&
780 (iface_index != ips.iface_index)) {
781 /* wrong interface */
783 } else if (alt_index != ips.iface_index_alt) {
784 /* wrong alternate setting */
787 /* initialise interface */
793 /* check for new interface */
794 if (ips.iface_index_alt == 0) {
795 /* update current number of endpoints */
800 /* setup the USB interface structure */
802 /* set alternate index */
803 iface->alt_index = alt_index;
804 /* set default interface parent */
805 if (iface_index == USB_IFACE_INDEX_ANY) {
806 iface->parent_iface_index =
811 DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
813 ed = (struct usb_endpoint_descriptor *)id;
817 /* iterate all the endpoint descriptors */
818 while ((ed = usb_edesc_foreach(udev->cdesc, ed))) {
820 if (temp == USB_EP_MAX)
823 ep = udev->endpoints + temp;
828 ecomp = usb_ed_comp_foreach(udev->cdesc, (void *)ed);
830 DPRINTFN(5, "Found endpoint companion descriptor\n");
832 usb_init_endpoint(udev,
833 ips.iface_index, ed, ecomp, ep);
838 /* find maximum number of endpoints */
843 id = (struct usb_interface_descriptor *)ed;
847 /* NOTE: It is valid to have no interfaces and no endpoints! */
849 if (cmd == USB_CFG_ALLOC) {
850 udev->ifaces_max = ips.iface_index;
852 if (udev->ifaces_max != 0) {
853 udev->ifaces = malloc(sizeof(*iface) * udev->ifaces_max,
854 M_USB, M_WAITOK | M_ZERO);
855 if (udev->ifaces == NULL) {
861 udev->endpoints = malloc(sizeof(*ep) * ep_max,
862 M_USB, M_WAITOK | M_ZERO);
863 if (udev->endpoints == NULL) {
868 udev->endpoints = NULL;
870 USB_BUS_LOCK(udev->bus);
871 udev->endpoints_max = ep_max;
872 /* reset any ongoing clear-stall */
873 udev->ep_curr = NULL;
874 USB_BUS_UNLOCK(udev->bus);
879 if (cmd == USB_CFG_ALLOC) {
881 USB_BUS_LOCK(udev->bus);
882 udev->endpoints_max = 0;
883 /* reset any ongoing clear-stall */
884 udev->ep_curr = NULL;
885 USB_BUS_UNLOCK(udev->bus);
888 if (udev->ifaces != NULL)
889 free(udev->ifaces, M_USB);
890 if (udev->endpoints != NULL)
891 free(udev->endpoints, M_USB);
894 udev->endpoints = NULL;
895 udev->ifaces_max = 0;
901 /*------------------------------------------------------------------------*
902 * usbd_set_alt_interface_index
904 * This function will select an alternate interface index for the
905 * given interface index. The interface should not be in use when this
906 * function is called. That means there should not be any open USB
907 * transfers. Else an error is returned. If the alternate setting is
908 * already set this function will simply return success. This function
909 * is called in Host mode and Device mode!
914 *------------------------------------------------------------------------*/
916 usbd_set_alt_interface_index(struct usb_device *udev,
917 uint8_t iface_index, uint8_t alt_index)
919 struct usb_interface *iface = usbd_get_iface(udev, iface_index);
923 /* Prevent re-enumeration */
924 do_unlock = usbd_enum_lock(udev);
930 if (iface->alt_index == alt_index) {
932 * Optimise away duplicate setting of
933 * alternate setting in USB Host Mode!
940 * Free all generic FIFOs for this interface, except control
943 usb_fifo_free_wrap(udev, iface_index, 0);
946 err = usb_config_parse(udev, iface_index, alt_index);
950 if (iface->alt_index != alt_index) {
951 /* the alternate setting does not exist */
956 err = usbd_req_set_alt_interface_no(udev, NULL, iface_index,
957 iface->idesc->bAlternateSetting);
961 usbd_enum_unlock(udev);
965 /*------------------------------------------------------------------------*
966 * usbd_set_endpoint_stall
968 * This function is used to make a BULK or INTERRUPT endpoint send
969 * STALL tokens in USB device mode.
974 *------------------------------------------------------------------------*/
976 usbd_set_endpoint_stall(struct usb_device *udev, struct usb_endpoint *ep,
979 struct usb_xfer *xfer;
985 DPRINTF("Cannot find endpoint\n");
987 * Pretend that the clear or set stall request is
988 * successful else some USB host stacks can do
989 * strange things, especially when a control endpoint
994 et = (ep->edesc->bmAttributes & UE_XFERTYPE);
996 if ((et != UE_BULK) &&
997 (et != UE_INTERRUPT)) {
999 * Should not stall control
1000 * nor isochronous endpoints.
1002 DPRINTF("Invalid endpoint\n");
1005 USB_BUS_LOCK(udev->bus);
1007 /* store current stall state */
1008 was_stalled = ep->is_stalled;
1010 /* check for no change */
1011 if (was_stalled && do_stall) {
1012 /* if the endpoint is already stalled do nothing */
1013 USB_BUS_UNLOCK(udev->bus);
1014 DPRINTF("No change\n");
1017 /* set stalled state */
1020 if (do_stall || (!was_stalled)) {
1022 /* lookup the current USB transfer, if any */
1023 xfer = ep->endpoint_q.curr;
1029 * If "xfer" is non-NULL the "set_stall" method will
1030 * complete the USB transfer like in case of a timeout
1031 * setting the error code "USB_ERR_STALLED".
1033 (udev->bus->methods->set_stall) (udev, xfer, ep, &do_stall);
1036 ep->toggle_next = 0; /* reset data toggle */
1037 ep->is_stalled = 0; /* clear stalled state */
1039 (udev->bus->methods->clear_stall) (udev, ep);
1041 /* start up the current or next transfer, if any */
1042 usb_command_wrapper(&ep->endpoint_q, ep->endpoint_q.curr);
1044 USB_BUS_UNLOCK(udev->bus);
1048 /*------------------------------------------------------------------------*
1049 * usb_reset_iface_endpoints - used in USB device side mode
1050 *------------------------------------------------------------------------*/
1052 usb_reset_iface_endpoints(struct usb_device *udev, uint8_t iface_index)
1054 struct usb_endpoint *ep;
1055 struct usb_endpoint *ep_end;
1057 ep = udev->endpoints;
1058 ep_end = udev->endpoints + udev->endpoints_max;
1060 for (; ep != ep_end; ep++) {
1062 if ((ep->edesc == NULL) ||
1063 (ep->iface_index != iface_index)) {
1066 /* simulate a clear stall from the peer */
1067 usbd_set_endpoint_stall(udev, ep, 0);
1072 /*------------------------------------------------------------------------*
1073 * usb_detach_device_sub
1075 * This function will try to detach an USB device. If it fails a panic
1078 * Flag values, see "USB_UNCFG_FLAG_XXX".
1079 *------------------------------------------------------------------------*/
1081 usb_detach_device_sub(struct usb_device *udev, device_t *ppdev,
1082 char **ppnpinfo, uint8_t flag)
1091 * NOTE: It is important to clear "*ppdev" before deleting
1092 * the child due to some device methods being called late
1093 * during the delete process !
1097 device_printf(dev, "at %s, port %d, addr %d "
1099 device_get_nameunit(udev->parent_dev),
1100 udev->port_no, udev->address);
1102 if (device_is_attached(dev)) {
1103 if (udev->flags.peer_suspended) {
1104 err = DEVICE_RESUME(dev);
1106 device_printf(dev, "Resume failed\n");
1109 if (device_detach(dev)) {
1113 if (device_delete_child(udev->parent_dev, dev)) {
1118 pnpinfo = *ppnpinfo;
1119 if (pnpinfo != NULL) {
1121 free(pnpinfo, M_USBDEV);
1126 /* Detach is not allowed to fail in the USB world */
1127 panic("usb_detach_device_sub: A USB driver would not detach\n");
1130 /*------------------------------------------------------------------------*
1133 * The following function will detach the matching interfaces.
1134 * This function is NULL safe.
1136 * Flag values, see "USB_UNCFG_FLAG_XXX".
1137 *------------------------------------------------------------------------*/
1139 usb_detach_device(struct usb_device *udev, uint8_t iface_index,
1142 struct usb_interface *iface;
1149 DPRINTFN(4, "udev=%p\n", udev);
1151 sx_assert(&udev->enum_sx, SA_LOCKED);
1153 /* wait for pending refs to go away */
1154 usb_wait_pending_ref_locked(udev);
1157 * First detach the child to give the child's detach routine a
1158 * chance to detach the sub-devices in the correct order.
1159 * Then delete the child using "device_delete_child()" which
1160 * will detach all sub-devices from the bottom and upwards!
1162 if (iface_index != USB_IFACE_INDEX_ANY) {
1164 iface_index = i + 1;
1167 iface_index = USB_IFACE_MAX;
1172 for (; i != iface_index; i++) {
1174 iface = usbd_get_iface(udev, i);
1175 if (iface == NULL) {
1176 /* looks like the end of the USB interfaces */
1179 usb_detach_device_sub(udev, &iface->subdev,
1180 &iface->pnpinfo, flag);
1183 usb_ref_restore_locked(udev);
1186 /*------------------------------------------------------------------------*
1187 * usb_probe_and_attach_sub
1192 *------------------------------------------------------------------------*/
1194 usb_probe_and_attach_sub(struct usb_device *udev,
1195 struct usb_attach_arg *uaa)
1197 struct usb_interface *iface;
1202 if (iface->parent_iface_index != USB_IFACE_INDEX_ANY) {
1203 /* leave interface alone */
1206 dev = iface->subdev;
1209 /* clean up after module unload */
1211 if (device_is_attached(dev)) {
1212 /* already a device there */
1215 /* clear "iface->subdev" as early as possible */
1217 iface->subdev = NULL;
1219 if (device_delete_child(udev->parent_dev, dev)) {
1222 * Panic here, else one can get a double call
1223 * to device_detach(). USB devices should
1224 * never fail on detach!
1226 panic("device_delete_child() failed\n");
1229 if (uaa->temp_dev == NULL) {
1231 /* create a new child */
1232 uaa->temp_dev = device_add_child(udev->parent_dev, NULL, -1);
1233 if (uaa->temp_dev == NULL) {
1234 device_printf(udev->parent_dev,
1235 "Device creation failed\n");
1236 return (1); /* failure */
1238 device_set_ivars(uaa->temp_dev, uaa);
1239 device_quiet(uaa->temp_dev);
1242 * Set "subdev" before probe and attach so that "devd" gets
1243 * the information it needs.
1245 iface->subdev = uaa->temp_dev;
1247 if (device_probe_and_attach(iface->subdev) == 0) {
1249 * The USB attach arguments are only available during probe
1252 uaa->temp_dev = NULL;
1253 device_set_ivars(iface->subdev, NULL);
1255 if (udev->flags.peer_suspended) {
1256 err = DEVICE_SUSPEND(iface->subdev);
1258 device_printf(iface->subdev, "Suspend failed\n");
1260 return (0); /* success */
1262 /* No USB driver found */
1263 iface->subdev = NULL;
1265 return (1); /* failure */
1268 /*------------------------------------------------------------------------*
1269 * usbd_set_parent_iface
1271 * Using this function will lock the alternate interface setting on an
1272 * interface. It is typically used for multi interface drivers. In USB
1273 * device side mode it is assumed that the alternate interfaces all
1274 * have the same endpoint descriptors. The default parent index value
1275 * is "USB_IFACE_INDEX_ANY". Then the alternate setting value is not
1277 *------------------------------------------------------------------------*/
1279 usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
1280 uint8_t parent_index)
1282 struct usb_interface *iface;
1288 iface = usbd_get_iface(udev, iface_index);
1290 iface->parent_iface_index = parent_index;
1294 usb_init_attach_arg(struct usb_device *udev,
1295 struct usb_attach_arg *uaa)
1297 memset(uaa, 0, sizeof(*uaa));
1300 uaa->usb_mode = udev->flags.usb_mode;
1301 uaa->port = udev->port_no;
1302 uaa->dev_state = UAA_DEV_READY;
1304 uaa->info.idVendor = UGETW(udev->ddesc.idVendor);
1305 uaa->info.idProduct = UGETW(udev->ddesc.idProduct);
1306 uaa->info.bcdDevice = UGETW(udev->ddesc.bcdDevice);
1307 uaa->info.bDeviceClass = udev->ddesc.bDeviceClass;
1308 uaa->info.bDeviceSubClass = udev->ddesc.bDeviceSubClass;
1309 uaa->info.bDeviceProtocol = udev->ddesc.bDeviceProtocol;
1310 uaa->info.bConfigIndex = udev->curr_config_index;
1311 uaa->info.bConfigNum = udev->curr_config_no;
1314 /*------------------------------------------------------------------------*
1315 * usb_probe_and_attach
1317 * This function is called from "uhub_explore_sub()",
1318 * "usb_handle_set_config()" and "usb_handle_request()".
1322 * Else: A control transfer failed
1323 *------------------------------------------------------------------------*/
1325 usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index)
1327 struct usb_attach_arg uaa;
1328 struct usb_interface *iface;
1334 DPRINTF("udev == NULL\n");
1335 return (USB_ERR_INVAL);
1337 /* Prevent re-enumeration */
1338 do_unlock = usbd_enum_lock(udev);
1340 if (udev->curr_config_index == USB_UNCONFIG_INDEX) {
1341 /* do nothing - no configuration has been set */
1344 /* setup USB attach arguments */
1346 usb_init_attach_arg(udev, &uaa);
1349 * If the whole USB device is targeted, invoke the USB event
1352 if (iface_index == USB_IFACE_INDEX_ANY) {
1354 EVENTHANDLER_INVOKE(usb_dev_configured, udev, &uaa);
1356 if (uaa.dev_state != UAA_DEV_READY) {
1357 /* leave device unconfigured */
1358 usb_unconfigure(udev, 0);
1363 /* Check if only one interface should be probed: */
1364 if (iface_index != USB_IFACE_INDEX_ANY) {
1372 /* Do the probe and attach */
1373 for (; i != j; i++) {
1375 iface = usbd_get_iface(udev, i);
1376 if (iface == NULL) {
1378 * Looks like the end of the USB
1381 DPRINTFN(2, "end of interfaces "
1385 if (iface->idesc == NULL) {
1386 /* no interface descriptor */
1391 uaa.info.bInterfaceClass =
1392 iface->idesc->bInterfaceClass;
1393 uaa.info.bInterfaceSubClass =
1394 iface->idesc->bInterfaceSubClass;
1395 uaa.info.bInterfaceProtocol =
1396 iface->idesc->bInterfaceProtocol;
1397 uaa.info.bIfaceIndex = i;
1398 uaa.info.bIfaceNum =
1399 iface->idesc->bInterfaceNumber;
1400 uaa.driver_info = 0; /* reset driver_info */
1402 DPRINTFN(2, "iclass=%u/%u/%u iindex=%u/%u\n",
1403 uaa.info.bInterfaceClass,
1404 uaa.info.bInterfaceSubClass,
1405 uaa.info.bInterfaceProtocol,
1406 uaa.info.bIfaceIndex,
1407 uaa.info.bIfaceNum);
1409 usb_probe_and_attach_sub(udev, &uaa);
1412 * Remove the leftover child, if any, to enforce that
1413 * a new nomatch devd event is generated for the next
1414 * interface if no driver is found:
1416 if (uaa.temp_dev == NULL)
1418 if (device_delete_child(udev->parent_dev, uaa.temp_dev))
1419 DPRINTFN(0, "device delete child failed\n");
1420 uaa.temp_dev = NULL;
1424 usbd_enum_unlock(udev);
1428 /*------------------------------------------------------------------------*
1429 * usb_suspend_resume_sub
1431 * This function is called when the suspend or resume methods should
1432 * be executed on an USB device.
1433 *------------------------------------------------------------------------*/
1435 usb_suspend_resume_sub(struct usb_device *udev, device_t dev, uint8_t do_suspend)
1442 if (!device_is_attached(dev)) {
1446 err = DEVICE_SUSPEND(dev);
1448 err = DEVICE_RESUME(dev);
1451 device_printf(dev, "%s failed\n",
1452 do_suspend ? "Suspend" : "Resume");
1456 /*------------------------------------------------------------------------*
1457 * usb_suspend_resume
1459 * The following function will suspend or resume the USB device.
1464 *------------------------------------------------------------------------*/
1466 usb_suspend_resume(struct usb_device *udev, uint8_t do_suspend)
1468 struct usb_interface *iface;
1475 DPRINTFN(4, "udev=%p do_suspend=%d\n", udev, do_suspend);
1477 sx_assert(&udev->sr_sx, SA_LOCKED);
1479 USB_BUS_LOCK(udev->bus);
1480 /* filter the suspend events */
1481 if (udev->flags.peer_suspended == do_suspend) {
1482 USB_BUS_UNLOCK(udev->bus);
1486 udev->flags.peer_suspended = do_suspend;
1487 USB_BUS_UNLOCK(udev->bus);
1489 /* do the suspend or resume */
1491 for (i = 0; i != USB_IFACE_MAX; i++) {
1493 iface = usbd_get_iface(udev, i);
1494 if (iface == NULL) {
1495 /* looks like the end of the USB interfaces */
1498 usb_suspend_resume_sub(udev, iface->subdev, do_suspend);
1503 /*------------------------------------------------------------------------*
1504 * usbd_clear_stall_proc
1506 * This function performs generic USB clear stall operations.
1507 *------------------------------------------------------------------------*/
1509 usbd_clear_stall_proc(struct usb_proc_msg *_pm)
1511 struct usb_udev_msg *pm = (void *)_pm;
1512 struct usb_device *udev = pm->udev;
1515 USB_BUS_UNLOCK(udev->bus);
1516 mtx_lock(&udev->device_mtx);
1518 /* Start clear stall callback */
1519 usbd_transfer_start(udev->ctrl_xfer[1]);
1522 mtx_unlock(&udev->device_mtx);
1523 USB_BUS_LOCK(udev->bus);
1526 /*------------------------------------------------------------------------*
1529 * This function allocates a new USB device. This function is called
1530 * when a new device has been put in the powered state, but not yet in
1531 * the addressed state. Get initial descriptor, set the address, get
1532 * full descriptor and get strings.
1537 *------------------------------------------------------------------------*/
1539 usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
1540 struct usb_device *parent_hub, uint8_t depth, uint8_t port_index,
1541 uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode)
1543 struct usb_attach_arg uaa;
1544 struct usb_device *udev;
1545 struct usb_device *adev;
1546 struct usb_device *hub;
1547 uint8_t *scratch_ptr;
1549 uint8_t device_index;
1550 uint8_t config_index;
1551 uint8_t config_quirk;
1552 uint8_t set_config_failed;
1555 DPRINTF("parent_dev=%p, bus=%p, parent_hub=%p, depth=%u, "
1556 "port_index=%u, port_no=%u, speed=%u, usb_mode=%u\n",
1557 parent_dev, bus, parent_hub, depth, port_index, port_no,
1561 * Find an unused device index. In USB Host mode this is the
1562 * same as the device address.
1564 * Device index zero is not used and device index 1 should
1565 * always be the root hub.
1567 for (device_index = USB_ROOT_HUB_ADDR;
1568 (device_index != bus->devices_max) &&
1569 (bus->devices[device_index] != NULL);
1570 device_index++) /* nop */;
1572 if (device_index == bus->devices_max) {
1573 device_printf(bus->bdev,
1574 "No free USB device index for new device\n");
1579 device_printf(bus->bdev,
1580 "Invalid device depth\n");
1583 udev = malloc(sizeof(*udev), M_USB, M_WAITOK | M_ZERO);
1587 /* initialise our SX-lock */
1588 sx_init_flags(&udev->enum_sx, "USB config SX lock", SX_DUPOK);
1589 sx_init_flags(&udev->sr_sx, "USB suspend and resume SX lock", SX_NOWITNESS);
1591 cv_init(&udev->ctrlreq_cv, "WCTRL");
1592 cv_init(&udev->ref_cv, "UGONE");
1594 /* initialise our mutex */
1595 mtx_init(&udev->device_mtx, "USB device mutex", NULL, MTX_DEF);
1597 /* initialise generic clear stall */
1598 udev->cs_msg[0].hdr.pm_callback = &usbd_clear_stall_proc;
1599 udev->cs_msg[0].udev = udev;
1600 udev->cs_msg[1].hdr.pm_callback = &usbd_clear_stall_proc;
1601 udev->cs_msg[1].udev = udev;
1603 /* initialise some USB device fields */
1604 udev->parent_hub = parent_hub;
1605 udev->parent_dev = parent_dev;
1606 udev->port_index = port_index;
1607 udev->port_no = port_no;
1608 udev->depth = depth;
1610 udev->address = USB_START_ADDR; /* default value */
1611 udev->plugtime = (usb_ticks_t)ticks;
1613 * We need to force the power mode to "on" because there are plenty
1614 * of USB devices out there that do not work very well with
1615 * automatic suspend and resume!
1617 udev->power_mode = usbd_filter_power_mode(udev, USB_POWER_MODE_ON);
1618 udev->pwr_save.last_xfer_time = ticks;
1619 /* we are not ready yet */
1622 /* set up default endpoint descriptor */
1623 udev->ctrl_ep_desc.bLength = sizeof(udev->ctrl_ep_desc);
1624 udev->ctrl_ep_desc.bDescriptorType = UDESC_ENDPOINT;
1625 udev->ctrl_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
1626 udev->ctrl_ep_desc.bmAttributes = UE_CONTROL;
1627 udev->ctrl_ep_desc.wMaxPacketSize[0] = USB_MAX_IPACKET;
1628 udev->ctrl_ep_desc.wMaxPacketSize[1] = 0;
1629 udev->ctrl_ep_desc.bInterval = 0;
1631 /* set up default endpoint companion descriptor */
1632 udev->ctrl_ep_comp_desc.bLength = sizeof(udev->ctrl_ep_comp_desc);
1633 udev->ctrl_ep_comp_desc.bDescriptorType = UDESC_ENDPOINT_SS_COMP;
1635 udev->ddesc.bMaxPacketSize = USB_MAX_IPACKET;
1637 udev->speed = speed;
1638 udev->flags.usb_mode = mode;
1640 /* search for our High Speed USB HUB, if any */
1643 hub = udev->parent_hub;
1646 if (hub->speed == USB_SPEED_HIGH) {
1647 udev->hs_hub_addr = hub->address;
1648 udev->parent_hs_hub = hub;
1649 udev->hs_port_no = adev->port_no;
1653 hub = hub->parent_hub;
1656 /* init the default endpoint */
1657 usb_init_endpoint(udev, 0,
1658 &udev->ctrl_ep_desc,
1659 &udev->ctrl_ep_comp_desc,
1662 /* set device index */
1663 udev->device_index = device_index;
1666 /* Create ugen name */
1667 snprintf(udev->ugen_name, sizeof(udev->ugen_name),
1668 USB_GENERIC_NAME "%u.%u", device_get_unit(bus->bdev),
1670 LIST_INIT(&udev->pd_list);
1672 /* Create the control endpoint device */
1673 udev->ctrl_dev = usb_make_dev(udev, NULL, 0, 0,
1674 FREAD|FWRITE, UID_ROOT, GID_OPERATOR, 0600);
1676 /* Create a link from /dev/ugenX.X to the default endpoint */
1677 if (udev->ctrl_dev != NULL)
1678 make_dev_alias(udev->ctrl_dev->cdev, "%s", udev->ugen_name);
1680 /* Initialise device */
1681 if (bus->methods->device_init != NULL) {
1682 err = (bus->methods->device_init) (udev);
1684 DPRINTFN(0, "device init %d failed "
1685 "(%s, ignored)\n", device_index,
1690 /* set powered device state after device init is complete */
1691 usb_set_device_state(udev, USB_STATE_POWERED);
1693 if (udev->flags.usb_mode == USB_MODE_HOST) {
1695 err = usbd_req_set_address(udev, NULL, device_index);
1698 * This is the new USB device address from now on, if
1699 * the set address request didn't set it already.
1701 if (udev->address == USB_START_ADDR)
1702 udev->address = device_index;
1705 * We ignore any set-address errors, hence there are
1706 * buggy USB devices out there that actually receive
1707 * the SETUP PID, but manage to set the address before
1708 * the STATUS stage is ACK'ed. If the device responds
1709 * to the subsequent get-descriptor at the new
1710 * address, then we know that the set-address command
1714 DPRINTFN(0, "set address %d failed "
1715 "(%s, ignored)\n", udev->address,
1719 /* We are not self powered */
1720 udev->flags.self_powered = 0;
1722 /* Set unconfigured state */
1723 udev->curr_config_no = USB_UNCONFIG_NO;
1724 udev->curr_config_index = USB_UNCONFIG_INDEX;
1726 /* Setup USB descriptors */
1727 err = (usb_temp_setup_by_index_p) (udev, usb_template);
1729 DPRINTFN(0, "setting up USB template failed maybe the USB "
1730 "template module has not been loaded\n");
1734 usb_set_device_state(udev, USB_STATE_ADDRESSED);
1736 /* setup the device descriptor and the initial "wMaxPacketSize" */
1737 err = usbd_setup_device_desc(udev, NULL);
1740 /* try to enumerate two more times */
1741 err = usbd_req_re_enumerate(udev, NULL);
1743 err = usbd_req_re_enumerate(udev, NULL);
1751 * Setup temporary USB attach args so that we can figure out some
1752 * basic quirks for this device.
1754 usb_init_attach_arg(udev, &uaa);
1756 if (usb_test_quirk(&uaa, UQ_BUS_POWERED)) {
1757 udev->flags.uq_bus_powered = 1;
1759 if (usb_test_quirk(&uaa, UQ_NO_STRINGS)) {
1760 udev->flags.no_strings = 1;
1763 * Workaround for buggy USB devices.
1765 * It appears that some string-less USB chips will crash and
1766 * disappear if any attempts are made to read any string
1769 * Try to detect such chips by checking the strings in the USB
1770 * device descriptor. If no strings are present there we
1771 * simply disable all USB strings.
1774 /* Protect scratch area */
1775 do_unlock = usbd_enum_lock(udev);
1777 scratch_ptr = udev->scratch.data;
1779 if (udev->ddesc.iManufacturer ||
1780 udev->ddesc.iProduct ||
1781 udev->ddesc.iSerialNumber) {
1782 /* read out the language ID string */
1783 err = usbd_req_get_string_desc(udev, NULL,
1784 (char *)scratch_ptr, 4, 0, USB_LANGUAGE_TABLE);
1786 err = USB_ERR_INVAL;
1789 if (err || (scratch_ptr[0] < 4)) {
1790 udev->flags.no_strings = 1;
1797 /* load preferred value and mask */
1799 mask = usb_lang_mask;
1801 /* align length correctly */
1802 scratch_ptr[0] &= ~1U;
1804 /* fix compiler warning */
1807 /* search for preferred language */
1808 for (x = 2; (x < scratch_ptr[0]); x += 2) {
1809 langid = UGETW(scratch_ptr + x);
1810 if ((langid & mask) == pref)
1813 if (x >= scratch_ptr[0]) {
1814 /* pick the first language as the default */
1815 DPRINTFN(1, "Using first language\n");
1816 langid = UGETW(scratch_ptr + 2);
1819 DPRINTFN(1, "Language selected: 0x%04x\n", langid);
1820 udev->langid = langid;
1824 usbd_enum_unlock(udev);
1826 /* assume 100mA bus powered for now. Changed when configured. */
1827 udev->power = USB_MIN_POWER;
1828 /* fetch the vendor and product strings from the device */
1829 usbd_set_device_strings(udev);
1831 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
1832 /* USB device mode setup is complete */
1838 * Most USB devices should attach to config index 0 by
1841 if (usb_test_quirk(&uaa, UQ_CFG_INDEX_0)) {
1844 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_1)) {
1847 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_2)) {
1850 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_3)) {
1853 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_4)) {
1861 set_config_failed = 0;
1864 DPRINTF("setting config %u\n", config_index);
1866 /* get the USB device configured */
1867 err = usbd_set_config_index(udev, config_index);
1869 if (udev->ddesc.bNumConfigurations != 0) {
1870 if (!set_config_failed) {
1871 set_config_failed = 1;
1872 /* XXX try to re-enumerate the device */
1873 err = usbd_req_re_enumerate(udev, NULL);
1875 goto repeat_set_config;
1877 DPRINTFN(0, "Failure selecting configuration index %u:"
1878 "%s, port %u, addr %u (ignored)\n",
1879 config_index, usbd_errstr(err), udev->port_no,
1883 * Some USB devices do not have any configurations. Ignore any
1884 * set config failures!
1889 if (!config_quirk && config_index + 1 < udev->ddesc.bNumConfigurations) {
1890 if ((udev->cdesc->bNumInterface < 2) &&
1891 usbd_get_no_descriptors(udev->cdesc, UDESC_ENDPOINT) == 0) {
1892 DPRINTFN(0, "Found no endpoints, trying next config\n");
1894 goto repeat_set_config;
1896 if (config_index == 0) {
1898 * Try to figure out if we have an
1899 * auto-install disk there:
1901 if (usb_iface_is_cdrom(udev, 0)) {
1902 DPRINTFN(0, "Found possible auto-install "
1903 "disk (trying next config)\n");
1905 goto repeat_set_config;
1909 if (set_config_failed == 0 && config_index == 0 &&
1910 usb_test_quirk(&uaa, UQ_MSC_NO_SYNC_CACHE) == 0 &&
1911 usb_test_quirk(&uaa, UQ_MSC_NO_GETMAXLUN) == 0) {
1914 * Try to figure out if there are any MSC quirks we
1915 * should apply automatically:
1917 err = usb_msc_auto_quirk(udev, 0);
1920 set_config_failed = 1;
1921 goto repeat_set_config;
1926 DPRINTF("new dev (addr %d), udev=%p, parent_hub=%p\n",
1927 udev->address, udev, udev->parent_hub);
1929 /* register our device - we are ready */
1930 usb_bus_port_set_device(bus, parent_hub ?
1931 parent_hub->hub->ports + port_index : NULL, udev, device_index);
1934 /* Symlink the ugen device name */
1935 udev->ugen_symlink = usb_alloc_symlink(udev->ugen_name);
1937 /* Announce device */
1938 printf("%s: <%s> at %s\n", udev->ugen_name,
1939 usb_get_manufacturer(udev),
1940 device_get_nameunit(udev->bus->bdev));
1944 usb_notify_addq("ATTACH", udev);
1949 * Free USB device and all subdevices, if any.
1951 usb_free_device(udev, 0);
1958 struct usb_fs_privdata *
1959 usb_make_dev(struct usb_device *udev, const char *devname, int ep,
1960 int fi, int rwmode, uid_t uid, gid_t gid, int mode)
1962 struct usb_fs_privdata* pd;
1965 /* Store information to locate ourselves again later */
1966 pd = malloc(sizeof(struct usb_fs_privdata), M_USBDEV,
1968 pd->bus_index = device_get_unit(udev->bus->bdev);
1969 pd->dev_index = udev->device_index;
1971 pd->fifo_index = fi;
1974 /* Now, create the device itself */
1975 if (devname == NULL) {
1977 snprintf(buffer, sizeof(buffer), USB_DEVICE_DIR "/%u.%u.%u",
1978 pd->bus_index, pd->dev_index, pd->ep_addr);
1981 pd->cdev = make_dev(&usb_devsw, 0, uid, gid, mode, "%s", devname);
1983 if (pd->cdev == NULL) {
1984 DPRINTFN(0, "Failed to create device %s\n", devname);
1989 /* XXX setting si_drv1 and creating the device is not atomic! */
1990 pd->cdev->si_drv1 = pd;
1996 usb_destroy_dev(struct usb_fs_privdata *pd)
2001 destroy_dev(pd->cdev);
2007 usb_cdev_create(struct usb_device *udev)
2009 struct usb_config_descriptor *cd;
2010 struct usb_endpoint_descriptor *ed;
2011 struct usb_descriptor *desc;
2012 struct usb_fs_privdata* pd;
2013 int inmode, outmode, inmask, outmask, mode;
2016 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("stale cdev entries"));
2018 DPRINTFN(2, "Creating device nodes\n");
2020 if (usbd_get_mode(udev) == USB_MODE_DEVICE) {
2023 } else { /* USB_MODE_HOST */
2033 * Collect all used endpoint numbers instead of just
2034 * generating 16 static endpoints.
2036 cd = usbd_get_config_descriptor(udev);
2037 while ((desc = usb_desc_foreach(cd, desc))) {
2038 /* filter out all endpoint descriptors */
2039 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
2040 (desc->bLength >= sizeof(*ed))) {
2041 ed = (struct usb_endpoint_descriptor *)desc;
2044 ep = ed->bEndpointAddress;
2045 if (UE_GET_DIR(ep) == UE_DIR_OUT)
2046 outmask |= 1 << UE_GET_ADDR(ep);
2048 inmask |= 1 << UE_GET_ADDR(ep);
2052 /* Create all available endpoints except EP0 */
2053 for (ep = 1; ep < 16; ep++) {
2054 mode = (inmask & (1 << ep)) ? inmode : 0;
2055 mode |= (outmask & (1 << ep)) ? outmode : 0;
2057 continue; /* no IN or OUT endpoint */
2059 pd = usb_make_dev(udev, NULL, ep, 0,
2060 mode, UID_ROOT, GID_OPERATOR, 0600);
2063 LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next);
2068 usb_cdev_free(struct usb_device *udev)
2070 struct usb_fs_privdata* pd;
2072 DPRINTFN(2, "Freeing device nodes\n");
2074 while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) {
2075 KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt"));
2077 LIST_REMOVE(pd, pd_next);
2079 usb_destroy_dev(pd);
2084 /*------------------------------------------------------------------------*
2087 * This function is NULL safe and will free an USB device and its
2088 * children devices, if any.
2090 * Flag values: Reserved, set to zero.
2091 *------------------------------------------------------------------------*/
2093 usb_free_device(struct usb_device *udev, uint8_t flag)
2095 struct usb_bus *bus;
2098 return; /* already freed */
2100 DPRINTFN(4, "udev=%p port=%d\n", udev, udev->port_no);
2104 /* set DETACHED state to prevent any further references */
2105 usb_set_device_state(udev, USB_STATE_DETACHED);
2108 usb_notify_addq("DETACH", udev);
2112 printf("%s: <%s> at %s (disconnected)\n", udev->ugen_name,
2113 usb_get_manufacturer(udev), device_get_nameunit(bus->bdev));
2115 /* Destroy UGEN symlink, if any */
2116 if (udev->ugen_symlink) {
2117 usb_free_symlink(udev->ugen_symlink);
2118 udev->ugen_symlink = NULL;
2121 usb_destroy_dev(udev->ctrl_dev);
2124 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
2125 /* stop receiving any control transfers (Device Side Mode) */
2126 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2129 /* the following will get the device unconfigured in software */
2130 usb_unconfigure(udev, USB_UNCFG_FLAG_FREE_EP0);
2132 /* final device unregister after all character devices are closed */
2133 usb_bus_port_set_device(bus, udev->parent_hub ?
2134 udev->parent_hub->hub->ports + udev->port_index : NULL,
2135 NULL, USB_ROOT_HUB_ADDR);
2137 /* unsetup any leftover default USB transfers */
2138 usbd_transfer_unsetup(udev->ctrl_xfer, USB_CTRL_XFER_MAX);
2140 /* template unsetup, if any */
2141 (usb_temp_unsetup_p) (udev);
2144 * Make sure that our clear-stall messages are not queued
2147 USB_BUS_LOCK(udev->bus);
2148 usb_proc_mwait(&udev->bus->non_giant_callback_proc,
2149 &udev->cs_msg[0], &udev->cs_msg[1]);
2150 USB_BUS_UNLOCK(udev->bus);
2152 sx_destroy(&udev->enum_sx);
2153 sx_destroy(&udev->sr_sx);
2155 cv_destroy(&udev->ctrlreq_cv);
2156 cv_destroy(&udev->ref_cv);
2158 mtx_destroy(&udev->device_mtx);
2160 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("leaked cdev entries"));
2163 /* Uninitialise device */
2164 if (bus->methods->device_uninit != NULL)
2165 (bus->methods->device_uninit) (udev);
2168 free(udev->serial, M_USB);
2169 free(udev->manufacturer, M_USB);
2170 free(udev->product, M_USB);
2174 /*------------------------------------------------------------------------*
2177 * This function is the safe way to get the USB interface structure
2178 * pointer by interface index.
2181 * NULL: Interface not present.
2182 * Else: Pointer to USB interface structure.
2183 *------------------------------------------------------------------------*/
2184 struct usb_interface *
2185 usbd_get_iface(struct usb_device *udev, uint8_t iface_index)
2187 struct usb_interface *iface = udev->ifaces + iface_index;
2189 if (iface_index >= udev->ifaces_max)
2194 /*------------------------------------------------------------------------*
2195 * usbd_find_descriptor
2197 * This function will lookup the first descriptor that matches the
2198 * criteria given by the arguments "type" and "subtype". Descriptors
2199 * will only be searched within the interface having the index
2200 * "iface_index". If the "id" argument points to an USB descriptor,
2201 * it will be skipped before the search is started. This allows
2202 * searching for multiple descriptors using the same criteria. Else
2203 * the search is started after the interface descriptor.
2206 * NULL: End of descriptors
2207 * Else: A descriptor matching the criteria
2208 *------------------------------------------------------------------------*/
2210 usbd_find_descriptor(struct usb_device *udev, void *id, uint8_t iface_index,
2211 uint8_t type, uint8_t type_mask,
2212 uint8_t subtype, uint8_t subtype_mask)
2214 struct usb_descriptor *desc;
2215 struct usb_config_descriptor *cd;
2216 struct usb_interface *iface;
2218 cd = usbd_get_config_descriptor(udev);
2223 iface = usbd_get_iface(udev, iface_index);
2224 if (iface == NULL) {
2227 id = usbd_get_interface_descriptor(iface);
2234 while ((desc = usb_desc_foreach(cd, desc))) {
2236 if (desc->bDescriptorType == UDESC_INTERFACE) {
2239 if (((desc->bDescriptorType & type_mask) == type) &&
2240 ((desc->bDescriptorSubtype & subtype_mask) == subtype)) {
2247 /*------------------------------------------------------------------------*
2250 * This function will dump information from the device descriptor
2251 * belonging to the USB device pointed to by "udev", to the string
2252 * pointed to by "dst_ptr" having a maximum length of "dst_len" bytes
2253 * including the terminating zero.
2254 *------------------------------------------------------------------------*/
2256 usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len)
2258 struct usb_device_descriptor *udd = &udev->ddesc;
2262 bcdUSB = UGETW(udd->bcdUSB);
2263 bcdDevice = UGETW(udd->bcdDevice);
2265 if (udd->bDeviceClass != 0xFF) {
2266 snprintf(dst_ptr, dst_len, "%s %s, class %d/%d, rev %x.%02x/"
2268 usb_get_manufacturer(udev),
2269 usb_get_product(udev),
2270 udd->bDeviceClass, udd->bDeviceSubClass,
2271 (bcdUSB >> 8), bcdUSB & 0xFF,
2272 (bcdDevice >> 8), bcdDevice & 0xFF,
2275 snprintf(dst_ptr, dst_len, "%s %s, rev %x.%02x/"
2277 usb_get_manufacturer(udev),
2278 usb_get_product(udev),
2279 (bcdUSB >> 8), bcdUSB & 0xFF,
2280 (bcdDevice >> 8), bcdDevice & 0xFF,
2287 * Descriptions of of known vendors and devices ("products").
2289 struct usb_knowndev {
2293 const char *vendorname;
2294 const char *productname;
2297 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
2299 #include "usbdevs.h"
2300 #include "usbdevs_data.h"
2301 #endif /* USB_VERBOSE */
2304 usbd_set_device_strings(struct usb_device *udev)
2306 struct usb_device_descriptor *udd = &udev->ddesc;
2308 const struct usb_knowndev *kdp;
2313 uint16_t product_id;
2316 /* Protect scratch area */
2317 do_unlock = usbd_enum_lock(udev);
2319 temp_ptr = (char *)udev->scratch.data;
2320 temp_size = sizeof(udev->scratch.data);
2322 vendor_id = UGETW(udd->idVendor);
2323 product_id = UGETW(udd->idProduct);
2325 /* get serial number string */
2326 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2327 udev->ddesc.iSerialNumber);
2328 udev->serial = strdup(temp_ptr, M_USB);
2330 /* get manufacturer string */
2331 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2332 udev->ddesc.iManufacturer);
2333 usb_trim_spaces(temp_ptr);
2334 if (temp_ptr[0] != '\0')
2335 udev->manufacturer = strdup(temp_ptr, M_USB);
2337 /* get product string */
2338 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2339 udev->ddesc.iProduct);
2340 usb_trim_spaces(temp_ptr);
2341 if (temp_ptr[0] != '\0')
2342 udev->product = strdup(temp_ptr, M_USB);
2345 if (udev->manufacturer == NULL || udev->product == NULL) {
2346 for (kdp = usb_knowndevs; kdp->vendorname != NULL; kdp++) {
2347 if (kdp->vendor == vendor_id &&
2348 (kdp->product == product_id ||
2349 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
2352 if (kdp->vendorname != NULL) {
2353 /* XXX should use pointer to knowndevs string */
2354 if (udev->manufacturer == NULL) {
2355 udev->manufacturer = strdup(kdp->vendorname,
2358 if (udev->product == NULL &&
2359 (kdp->flags & USB_KNOWNDEV_NOPROD) == 0) {
2360 udev->product = strdup(kdp->productname,
2366 /* Provide default strings if none were found */
2367 if (udev->manufacturer == NULL) {
2368 snprintf(temp_ptr, temp_size, "vendor 0x%04x", vendor_id);
2369 udev->manufacturer = strdup(temp_ptr, M_USB);
2371 if (udev->product == NULL) {
2372 snprintf(temp_ptr, temp_size, "product 0x%04x", product_id);
2373 udev->product = strdup(temp_ptr, M_USB);
2377 usbd_enum_unlock(udev);
2385 usbd_get_mode(struct usb_device *udev)
2387 return (udev->flags.usb_mode);
2392 * See: USB_SPEED_XXX
2395 usbd_get_speed(struct usb_device *udev)
2397 return (udev->speed);
2401 usbd_get_isoc_fps(struct usb_device *udev)
2404 switch (udev->speed) {
2406 case USB_SPEED_FULL:
2413 struct usb_device_descriptor *
2414 usbd_get_device_descriptor(struct usb_device *udev)
2417 return (NULL); /* be NULL safe */
2418 return (&udev->ddesc);
2421 struct usb_config_descriptor *
2422 usbd_get_config_descriptor(struct usb_device *udev)
2425 return (NULL); /* be NULL safe */
2426 return (udev->cdesc);
2429 /*------------------------------------------------------------------------*
2430 * usb_test_quirk - test a device for a given quirk
2433 * 0: The USB device does not have the given quirk.
2434 * Else: The USB device has the given quirk.
2435 *------------------------------------------------------------------------*/
2437 usb_test_quirk(const struct usb_attach_arg *uaa, uint16_t quirk)
2442 if (quirk == UQ_NONE)
2445 /* search the automatic per device quirks first */
2447 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2448 if (uaa->device->autoQuirk[x] == quirk)
2452 /* search global quirk table, if any */
2454 found = (usb_test_quirk_p) (&uaa->info, quirk);
2459 struct usb_interface_descriptor *
2460 usbd_get_interface_descriptor(struct usb_interface *iface)
2463 return (NULL); /* be NULL safe */
2464 return (iface->idesc);
2468 usbd_get_interface_altindex(struct usb_interface *iface)
2470 return (iface->alt_index);
2474 usbd_get_bus_index(struct usb_device *udev)
2476 return ((uint8_t)device_get_unit(udev->bus->bdev));
2480 usbd_get_device_index(struct usb_device *udev)
2482 return (udev->device_index);
2486 /*------------------------------------------------------------------------*
2489 * This function will generate events for dev.
2490 *------------------------------------------------------------------------*/
2491 #ifndef BURN_BRIDGES
2493 usb_notify_addq_compat(const char *type, struct usb_device *udev)
2497 struct malloc_type *mt;
2498 const size_t buf_size = 512;
2500 /* Convert notify type */
2501 if (strcmp(type, "ATTACH") == 0)
2503 else if (strcmp(type, "DETACH") == 0)
2508 mtx_lock(&malloc_mtx);
2509 mt = malloc_desc2type("bus"); /* XXX M_BUS */
2510 mtx_unlock(&malloc_mtx);
2514 data = malloc(buf_size, mt, M_NOWAIT);
2518 /* String it all together. */
2519 snprintf(data, buf_size,
2528 "devsubclass=0x%02x "
2540 UGETW(udev->ddesc.idVendor),
2541 UGETW(udev->ddesc.idProduct),
2542 udev->ddesc.bDeviceClass,
2543 udev->ddesc.bDeviceSubClass,
2544 usb_get_serial(udev),
2545 UGETW(udev->ddesc.bcdDevice)
2547 , udev->parent_hub != NULL ?
2548 udev->parent_hub->ugen_name :
2549 device_get_nameunit(device_get_parent(udev->bus->bdev))
2553 devctl_queue_data(data);
2558 usb_notify_addq(const char *type, struct usb_device *udev)
2560 struct usb_interface *iface;
2564 #ifndef BURN_BRIDGES
2565 usb_notify_addq_compat(type, udev);
2568 /* announce the device */
2569 sb = sbuf_new_auto();
2578 "devsubclass=0x%02x "
2591 UGETW(udev->ddesc.idVendor),
2592 UGETW(udev->ddesc.idProduct),
2593 udev->ddesc.bDeviceClass,
2594 udev->ddesc.bDeviceSubClass,
2595 usb_get_serial(udev),
2596 UGETW(udev->ddesc.bcdDevice),
2597 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2600 , udev->parent_hub != NULL ?
2601 udev->parent_hub->ugen_name :
2602 device_get_nameunit(device_get_parent(udev->bus->bdev))
2606 devctl_notify("USB", "DEVICE", type, sbuf_data(sb));
2609 /* announce each interface */
2610 for (i = 0; i < USB_IFACE_MAX; i++) {
2611 iface = usbd_get_iface(udev, i);
2613 break; /* end of interfaces */
2614 if (iface->idesc == NULL)
2615 continue; /* no interface descriptor */
2617 sb = sbuf_new_auto();
2626 "devsubclass=0x%02x "
2633 "intsubclass=0x%02x "
2634 "intprotocol=0x%02x",
2639 UGETW(udev->ddesc.idVendor),
2640 UGETW(udev->ddesc.idProduct),
2641 udev->ddesc.bDeviceClass,
2642 udev->ddesc.bDeviceSubClass,
2643 usb_get_serial(udev),
2644 UGETW(udev->ddesc.bcdDevice),
2645 (udev->flags.usb_mode == USB_MODE_HOST) ? "host" : "device",
2646 iface->idesc->bInterfaceNumber,
2647 iface->idesc->bNumEndpoints,
2648 iface->idesc->bInterfaceClass,
2649 iface->idesc->bInterfaceSubClass,
2650 iface->idesc->bInterfaceProtocol);
2652 devctl_notify("USB", "INTERFACE", type, sbuf_data(sb));
2659 /*------------------------------------------------------------------------*
2660 * usb_fifo_free_wrap
2662 * This function will free the FIFOs.
2664 * Description of "flag" argument: If the USB_UNCFG_FLAG_FREE_EP0 flag
2665 * is set and "iface_index" is set to "USB_IFACE_INDEX_ANY", we free
2666 * all FIFOs. If the USB_UNCFG_FLAG_FREE_EP0 flag is not set and
2667 * "iface_index" is set to "USB_IFACE_INDEX_ANY", we free all non
2668 * control endpoint FIFOs. If "iface_index" is not set to
2669 * "USB_IFACE_INDEX_ANY" the flag has no effect.
2670 *------------------------------------------------------------------------*/
2672 usb_fifo_free_wrap(struct usb_device *udev,
2673 uint8_t iface_index, uint8_t flag)
2679 * Free any USB FIFOs on the given interface:
2681 for (i = 0; i != USB_FIFO_MAX; i++) {
2686 /* Check if the interface index matches */
2687 if (iface_index == f->iface_index) {
2688 if (f->methods != &usb_ugen_methods) {
2690 * Don't free any non-generic FIFOs in
2695 if ((f->dev_ep_index == 0) &&
2696 (f->fs_xfer == NULL)) {
2697 /* no need to free this FIFO */
2700 } else if (iface_index == USB_IFACE_INDEX_ANY) {
2701 if ((f->methods == &usb_ugen_methods) &&
2702 (f->dev_ep_index == 0) &&
2703 (!(flag & USB_UNCFG_FLAG_FREE_EP0)) &&
2704 (f->fs_xfer == NULL)) {
2705 /* no need to free this FIFO */
2709 /* no need to free this FIFO */
2712 /* wait for pending refs to go away */
2713 usb_wait_pending_ref_locked(udev);
2715 /* free this FIFO */
2718 /* restore refcount */
2719 usb_ref_restore_locked(udev);
2724 /*------------------------------------------------------------------------*
2725 * usb_peer_can_wakeup
2728 * 0: Peer cannot do resume signalling.
2729 * Else: Peer can do resume signalling.
2730 *------------------------------------------------------------------------*/
2732 usb_peer_can_wakeup(struct usb_device *udev)
2734 const struct usb_config_descriptor *cdp;
2737 if ((cdp != NULL) && (udev->flags.usb_mode == USB_MODE_HOST)) {
2738 return (cdp->bmAttributes & UC_REMOTE_WAKEUP);
2740 return (0); /* not supported */
2744 usb_set_device_state(struct usb_device *udev, enum usb_dev_state state)
2747 KASSERT(state < USB_STATE_MAX, ("invalid udev state"));
2749 DPRINTF("udev %p state %s -> %s\n", udev,
2750 usb_statestr(udev->state), usb_statestr(state));
2753 mtx_lock(&usb_ref_lock);
2755 udev->state = state;
2757 mtx_unlock(&usb_ref_lock);
2759 if (udev->bus->methods->device_state_change != NULL)
2760 (udev->bus->methods->device_state_change) (udev);
2764 usb_get_device_state(struct usb_device *udev)
2767 return (USB_STATE_DETACHED);
2768 return (udev->state);
2772 usbd_device_attached(struct usb_device *udev)
2774 return (udev->state > USB_STATE_DETACHED);
2778 * The following function locks enumerating the given USB device. If
2779 * the lock is already grabbed this function returns zero. Else a
2780 * non-zero value is returned.
2783 usbd_enum_lock(struct usb_device *udev)
2785 if (sx_xlocked(&udev->enum_sx))
2788 sx_xlock(&udev->enum_sx);
2789 sx_xlock(&udev->sr_sx);
2791 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2792 * are locked before locking Giant. Else the lock can be
2793 * locked multiple times.
2799 /* The following function unlocks enumerating the given USB device. */
2802 usbd_enum_unlock(struct usb_device *udev)
2805 sx_xunlock(&udev->enum_sx);
2806 sx_xunlock(&udev->sr_sx);
2809 /* The following function locks suspend and resume. */
2812 usbd_sr_lock(struct usb_device *udev)
2814 sx_xlock(&udev->sr_sx);
2816 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2817 * are locked before locking Giant. Else the lock can be
2818 * locked multiple times.
2823 /* The following function unlocks suspend and resume. */
2826 usbd_sr_unlock(struct usb_device *udev)
2829 sx_xunlock(&udev->sr_sx);
2833 * The following function checks the enumerating lock for the given
2838 usbd_enum_is_locked(struct usb_device *udev)
2840 return (sx_xlocked(&udev->enum_sx));
2844 * The following function is used to set the per-interface specific
2845 * plug and play information. The string referred to by the pnpinfo
2846 * argument can safely be freed after calling this function. The
2847 * pnpinfo of an interface will be reset at device detach or when
2848 * passing a NULL argument to this function. This function
2849 * returns zero on success, else a USB_ERR_XXX failure code.
2853 usbd_set_pnpinfo(struct usb_device *udev, uint8_t iface_index, const char *pnpinfo)
2855 struct usb_interface *iface;
2857 iface = usbd_get_iface(udev, iface_index);
2859 return (USB_ERR_INVAL);
2861 if (iface->pnpinfo != NULL) {
2862 free(iface->pnpinfo, M_USBDEV);
2863 iface->pnpinfo = NULL;
2866 if (pnpinfo == NULL || pnpinfo[0] == 0)
2867 return (0); /* success */
2869 iface->pnpinfo = strdup(pnpinfo, M_USBDEV);
2870 if (iface->pnpinfo == NULL)
2871 return (USB_ERR_NOMEM);
2873 return (0); /* success */
2877 usbd_add_dynamic_quirk(struct usb_device *udev, uint16_t quirk)
2881 for (x = 0; x != USB_MAX_AUTO_QUIRK; x++) {
2882 if (udev->autoQuirk[x] == 0 ||
2883 udev->autoQuirk[x] == quirk) {
2884 udev->autoQuirk[x] = quirk;
2885 return (0); /* success */
2888 return (USB_ERR_NOMEM);