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/linker_set.h>
36 #include <sys/module.h>
38 #include <sys/mutex.h>
39 #include <sys/condvar.h>
40 #include <sys/sysctl.h>
42 #include <sys/unistd.h>
43 #include <sys/callout.h>
44 #include <sys/malloc.h>
47 #include <sys/fcntl.h>
49 #include <dev/usb/usb.h>
50 #include <dev/usb/usbdi.h>
51 #include <dev/usb/usbdi_util.h>
52 #include <dev/usb/usb_ioctl.h>
55 #define USB_DEBUG_VAR usb_debug
57 #include <dev/usb/usb_core.h>
58 #include <dev/usb/usb_debug.h>
59 #include <dev/usb/usb_process.h>
60 #include <dev/usb/usb_device.h>
61 #include <dev/usb/usb_busdma.h>
62 #include <dev/usb/usb_transfer.h>
63 #include <dev/usb/usb_request.h>
64 #include <dev/usb/usb_dynamic.h>
65 #include <dev/usb/usb_hub.h>
66 #include <dev/usb/usb_util.h>
67 #include <dev/usb/usb_msctest.h>
69 #include <dev/usb/usb_dev.h>
70 #include <dev/usb/usb_generic.h>
73 #include <dev/usb/quirk/usb_quirk.h>
75 #include <dev/usb/usb_controller.h>
76 #include <dev/usb/usb_bus.h>
78 /* function prototypes */
80 static void usb_init_endpoint(struct usb_device *, uint8_t,
81 struct usb_endpoint_descriptor *, struct usb_endpoint *);
82 static void usb_unconfigure(struct usb_device *, uint8_t);
83 static void usb_detach_device_sub(struct usb_device *, device_t *,
85 static uint8_t usb_probe_and_attach_sub(struct usb_device *,
86 struct usb_attach_arg *);
87 static void usb_init_attach_arg(struct usb_device *,
88 struct usb_attach_arg *);
89 static void usb_suspend_resume_sub(struct usb_device *, device_t,
91 static void usbd_clear_stall_proc(struct usb_proc_msg *_pm);
92 usb_error_t usb_config_parse(struct usb_device *, uint8_t, uint8_t);
93 static void usbd_set_device_strings(struct usb_device *);
95 static void usb_notify_addq(const char *type, struct usb_device *);
96 static void usb_fifo_free_wrap(struct usb_device *, uint8_t, uint8_t);
97 static struct cdev *usb_make_dev(struct usb_device *, int, int);
98 static void usb_cdev_create(struct usb_device *);
99 static void usb_cdev_free(struct usb_device *);
100 static void usb_cdev_cleanup(void *);
103 /* This variable is global to allow easy access to it: */
105 int usb_template = 0;
107 TUNABLE_INT("hw.usb.usb_template", &usb_template);
108 SYSCTL_INT(_hw_usb, OID_AUTO, template, CTLFLAG_RW,
109 &usb_template, 0, "Selected USB device side template");
111 /* English is default language */
113 static int usb_lang_id = 0x0009;
114 static int usb_lang_mask = 0x00FF;
116 TUNABLE_INT("hw.usb.usb_lang_id", &usb_lang_id);
117 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_id, CTLFLAG_RW,
118 &usb_lang_id, 0, "Preferred USB language ID");
120 TUNABLE_INT("hw.usb.usb_lang_mask", &usb_lang_mask);
121 SYSCTL_INT(_hw_usb, OID_AUTO, usb_lang_mask, CTLFLAG_RW,
122 &usb_lang_mask, 0, "Preferred USB language mask");
124 static const char* statestr[USB_STATE_MAX] = {
125 [USB_STATE_DETACHED] = "DETACHED",
126 [USB_STATE_ATTACHED] = "ATTACHED",
127 [USB_STATE_POWERED] = "POWERED",
128 [USB_STATE_ADDRESSED] = "ADDRESSED",
129 [USB_STATE_CONFIGURED] = "CONFIGURED",
133 usb_statestr(enum usb_dev_state state)
135 return ((state < USB_STATE_MAX) ? statestr[state] : "UNKNOWN");
138 /*------------------------------------------------------------------------*
139 * usbd_get_ep_by_addr
141 * This function searches for an USB ep by endpoint address and
147 *------------------------------------------------------------------------*/
148 struct usb_endpoint *
149 usbd_get_ep_by_addr(struct usb_device *udev, uint8_t ea_val)
151 struct usb_endpoint *ep = udev->endpoints;
152 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
154 EA_MASK = (UE_DIR_IN | UE_DIR_OUT | UE_ADDR),
158 * According to the USB specification not all bits are used
159 * for the endpoint address. Keep defined bits only:
164 * Iterate accross all the USB endpoints searching for a match
165 * based on the endpoint address:
167 for (; ep != ep_end; ep++) {
169 if (ep->edesc == NULL) {
172 /* do the mask and check the value */
173 if ((ep->edesc->bEndpointAddress & EA_MASK) == ea_val) {
179 * The default endpoint is always present and is checked separately:
181 if ((udev->default_ep.edesc) &&
182 ((udev->default_ep.edesc->bEndpointAddress & EA_MASK) == ea_val)) {
183 ep = &udev->default_ep;
192 /*------------------------------------------------------------------------*
195 * This function searches for an USB endpoint based on the information
196 * given by the passed "struct usb_config" pointer.
200 * Else: Pointer to "struct usb_endpoint".
201 *------------------------------------------------------------------------*/
202 struct usb_endpoint *
203 usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,
204 const struct usb_config *setup)
206 struct usb_endpoint *ep = udev->endpoints;
207 struct usb_endpoint *ep_end = udev->endpoints + udev->endpoints_max;
208 uint8_t index = setup->ep_index;
214 DPRINTFN(10, "udev=%p iface_index=%d address=0x%x "
215 "type=0x%x dir=0x%x index=%d\n",
216 udev, iface_index, setup->endpoint,
217 setup->type, setup->direction, setup->ep_index);
221 if (setup->usb_mode != USB_MODE_DUAL &&
222 udev->flags.usb_mode != setup->usb_mode) {
223 /* wrong mode - no endpoint */
227 /* setup expected endpoint direction mask and value */
229 if (setup->direction == UE_DIR_RX) {
230 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
231 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
232 UE_DIR_OUT : UE_DIR_IN;
233 } else if (setup->direction == UE_DIR_TX) {
234 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
235 ea_val = (udev->flags.usb_mode == USB_MODE_DEVICE) ?
236 UE_DIR_IN : UE_DIR_OUT;
237 } else if (setup->direction == UE_DIR_ANY) {
238 /* match any endpoint direction */
242 /* match the given endpoint direction */
243 ea_mask = (UE_DIR_IN | UE_DIR_OUT);
244 ea_val = (setup->direction & (UE_DIR_IN | UE_DIR_OUT));
247 /* setup expected endpoint address */
249 if (setup->endpoint == UE_ADDR_ANY) {
250 /* match any endpoint address */
252 /* match the given endpoint address */
254 ea_val |= (setup->endpoint & UE_ADDR);
257 /* setup expected endpoint type */
259 if (setup->type == UE_BULK_INTR) {
260 /* this will match BULK and INTERRUPT endpoints */
263 } else if (setup->type == UE_TYPE_ANY) {
264 /* match any endpoint type */
268 /* match the given endpoint type */
269 type_mask = UE_XFERTYPE;
270 type_val = (setup->type & UE_XFERTYPE);
274 * Iterate accross all the USB endpoints searching for a match
275 * based on the endpoint address. Note that we are searching
276 * the endpoints from the beginning of the "udev->endpoints" array.
278 for (; ep != ep_end; ep++) {
280 if ((ep->edesc == NULL) ||
281 (ep->iface_index != iface_index)) {
284 /* do the masks and check the values */
286 if (((ep->edesc->bEndpointAddress & ea_mask) == ea_val) &&
287 ((ep->edesc->bmAttributes & type_mask) == type_val)) {
295 * Match against default endpoint last, so that "any endpoint", "any
296 * address" and "any direction" returns the first endpoint of the
297 * interface. "iface_index" and "direction" is ignored:
299 if ((udev->default_ep.edesc) &&
300 ((udev->default_ep.edesc->bEndpointAddress & ea_mask) == ea_val) &&
301 ((udev->default_ep.edesc->bmAttributes & type_mask) == type_val) &&
303 ep = &udev->default_ep;
312 /*------------------------------------------------------------------------*
313 * usbd_interface_count
315 * This function stores the number of USB interfaces excluding
316 * alternate settings, which the USB config descriptor reports into
317 * the unsigned 8-bit integer pointed to by "count".
322 *------------------------------------------------------------------------*/
324 usbd_interface_count(struct usb_device *udev, uint8_t *count)
326 if (udev->cdesc == NULL) {
328 return (USB_ERR_NOT_CONFIGURED);
330 *count = udev->ifaces_max;
331 return (USB_ERR_NORMAL_COMPLETION);
335 /*------------------------------------------------------------------------*
338 * This function will initialise the USB endpoint structure pointed to by
339 * the "endpoint" argument. The structure pointed to by "endpoint" must be
340 * zeroed before calling this function.
341 *------------------------------------------------------------------------*/
343 usb_init_endpoint(struct usb_device *udev, uint8_t iface_index,
344 struct usb_endpoint_descriptor *edesc, struct usb_endpoint *ep)
346 struct usb_bus_methods *methods;
348 methods = udev->bus->methods;
350 (methods->endpoint_init) (udev, edesc, ep);
352 /* initialise USB endpoint structure */
354 ep->iface_index = iface_index;
355 TAILQ_INIT(&ep->endpoint_q.head);
356 ep->endpoint_q.command = &usbd_pipe_start;
358 /* the pipe is not supported by the hardware */
359 if (ep->methods == NULL)
362 /* clear stall, if any */
363 if (methods->clear_stall != NULL) {
364 USB_BUS_LOCK(udev->bus);
365 (methods->clear_stall) (udev, ep);
366 USB_BUS_UNLOCK(udev->bus);
370 /*-----------------------------------------------------------------------*
371 * usb_endpoint_foreach
373 * This function will iterate all the USB endpoints except the control
374 * endpoint. This function is NULL safe.
377 * NULL: End of USB endpoints
378 * Else: Pointer to next USB endpoint
379 *------------------------------------------------------------------------*/
380 struct usb_endpoint *
381 usb_endpoint_foreach(struct usb_device *udev, struct usb_endpoint *ep)
383 struct usb_endpoint *ep_end;
389 ep_end = udev->endpoints + udev->endpoints_max;
391 /* get next endpoint */
393 ep = udev->endpoints;
397 /* find next allocated ep */
398 while (ep != ep_end) {
399 if (ep->edesc != NULL)
406 /*------------------------------------------------------------------------*
409 * This function will free all USB interfaces and USB endpoints belonging
412 * Flag values, see "USB_UNCFG_FLAG_XXX".
413 *------------------------------------------------------------------------*/
415 usb_unconfigure(struct usb_device *udev, uint8_t flag)
419 /* automatic locking */
420 if (usbd_enum_is_locked(udev)) {
424 usbd_enum_lock(udev);
427 /* detach all interface drivers */
428 usb_detach_device(udev, USB_IFACE_INDEX_ANY, flag);
431 /* free all FIFOs except control endpoint FIFOs */
432 usb_fifo_free_wrap(udev, USB_IFACE_INDEX_ANY, flag);
435 * Free all cdev's, if any.
440 #if USB_HAVE_COMPAT_LINUX
441 /* free Linux compat device, if any */
442 if (udev->linux_endpoint_start) {
443 usb_linux_free_device(udev);
444 udev->linux_endpoint_start = NULL;
448 usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_FREE);
450 /* free "cdesc" after "ifaces" and "endpoints", if any */
451 if (udev->cdesc != NULL) {
452 if (udev->flags.usb_mode != USB_MODE_DEVICE)
453 free(udev->cdesc, M_USB);
456 /* set unconfigured state */
457 udev->curr_config_no = USB_UNCONFIG_NO;
458 udev->curr_config_index = USB_UNCONFIG_INDEX;
461 usbd_enum_unlock(udev);
464 /*------------------------------------------------------------------------*
465 * usbd_set_config_index
467 * This function selects configuration by index, independent of the
468 * actual configuration number. This function should not be used by
474 *------------------------------------------------------------------------*/
476 usbd_set_config_index(struct usb_device *udev, uint8_t index)
478 struct usb_status ds;
479 struct usb_config_descriptor *cdp;
486 DPRINTFN(6, "udev=%p index=%d\n", udev, index);
488 /* automatic locking */
489 if (usbd_enum_is_locked(udev)) {
493 usbd_enum_lock(udev);
496 usb_unconfigure(udev, 0);
498 if (index == USB_UNCONFIG_INDEX) {
500 * Leave unallocated when unconfiguring the
501 * device. "usb_unconfigure()" will also reset
502 * the current config number and index.
504 err = usbd_req_set_config(udev, NULL, USB_UNCONFIG_NO);
505 if (udev->state == USB_STATE_CONFIGURED)
506 usb_set_device_state(udev, USB_STATE_ADDRESSED);
509 /* get the full config descriptor */
510 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
511 /* save some memory */
512 err = usbd_req_get_descriptor_ptr(udev, &cdp,
513 (UDESC_CONFIG << 8) | index);
516 err = usbd_req_get_config_desc_full(udev,
517 NULL, &cdp, M_USB, index);
522 /* set the new config descriptor */
526 /* Figure out if the device is self or bus powered. */
528 if ((!udev->flags.uq_bus_powered) &&
529 (cdp->bmAttributes & UC_SELF_POWERED) &&
530 (udev->flags.usb_mode == USB_MODE_HOST)) {
531 /* May be self powered. */
532 if (cdp->bmAttributes & UC_BUS_POWERED) {
533 /* Must ask device. */
534 err = usbd_req_get_device_status(udev, NULL, &ds);
536 DPRINTFN(0, "could not read "
537 "device status: %s\n",
539 } else if (UGETW(ds.wStatus) & UDS_SELF_POWERED) {
542 DPRINTF("status=0x%04x \n",
547 DPRINTF("udev=%p cdesc=%p (addr %d) cno=%d attr=0x%02x, "
548 "selfpowered=%d, power=%d\n",
550 udev->address, cdp->bConfigurationValue, cdp->bmAttributes,
551 selfpowered, cdp->bMaxPower * 2);
553 /* Check if we have enough power. */
554 power = cdp->bMaxPower * 2;
556 if (udev->parent_hub) {
557 max_power = udev->parent_hub->hub->portpower;
559 max_power = USB_MAX_POWER;
562 if (power > max_power) {
563 DPRINTFN(0, "power exceeded %d > %d\n", power, max_power);
564 err = USB_ERR_NO_POWER;
567 /* Only update "self_powered" in USB Host Mode */
568 if (udev->flags.usb_mode == USB_MODE_HOST) {
569 udev->flags.self_powered = selfpowered;
572 udev->curr_config_no = cdp->bConfigurationValue;
573 udev->curr_config_index = index;
574 usb_set_device_state(udev, USB_STATE_CONFIGURED);
576 /* Set the actual configuration value. */
577 err = usbd_req_set_config(udev, NULL, cdp->bConfigurationValue);
582 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_ALLOC);
587 err = usb_config_parse(udev, USB_IFACE_INDEX_ANY, USB_CFG_INIT);
593 /* create device nodes for each endpoint */
594 usb_cdev_create(udev);
598 DPRINTF("error=%s\n", usbd_errstr(err));
600 usb_unconfigure(udev, 0);
603 usbd_enum_unlock(udev);
607 /*------------------------------------------------------------------------*
610 * This function will allocate and free USB interfaces and USB endpoints,
611 * parse the USB configuration structure and initialise the USB endpoints
612 * and interfaces. If "iface_index" is not equal to
613 * "USB_IFACE_INDEX_ANY" then the "cmd" parameter is the
614 * alternate_setting to be selected for the given interface. Else the
615 * "cmd" parameter is defined by "USB_CFG_XXX". "iface_index" can be
616 * "USB_IFACE_INDEX_ANY" or a valid USB interface index. This function
617 * is typically called when setting the configuration or when setting
618 * an alternate interface.
623 *------------------------------------------------------------------------*/
625 usb_config_parse(struct usb_device *udev, uint8_t iface_index, uint8_t cmd)
627 struct usb_idesc_parse_state ips;
628 struct usb_interface_descriptor *id;
629 struct usb_endpoint_descriptor *ed;
630 struct usb_interface *iface;
631 struct usb_endpoint *ep;
639 if (iface_index != USB_IFACE_INDEX_ANY) {
640 /* parameter overload */
650 DPRINTFN(5, "iface_index=%d cmd=%d\n",
653 if (cmd == USB_CFG_FREE)
656 if (cmd == USB_CFG_INIT) {
657 sx_assert(udev->default_sx + 1, SA_LOCKED);
659 /* check for in-use endpoints */
661 ep = udev->endpoints;
662 ep_max = udev->endpoints_max;
664 /* look for matching endpoints */
665 if ((iface_index == USB_IFACE_INDEX_ANY) ||
666 (iface_index == ep->iface_index)) {
667 if (ep->refcount_alloc != 0) {
669 * This typically indicates a
670 * more serious error.
672 err = USB_ERR_IN_USE;
675 memset(ep, 0, sizeof(*ep));
676 /* make sure we don't zero the endpoint again */
677 ep->iface_index = USB_IFACE_INDEX_ANY;
687 memset(&ips, 0, sizeof(ips));
692 while ((id = usb_idesc_foreach(udev->cdesc, &ips))) {
694 /* check for interface overflow */
695 if (ips.iface_index == USB_IFACE_MAX)
698 iface = udev->ifaces + ips.iface_index;
700 /* check for specific interface match */
702 if (cmd == USB_CFG_INIT) {
703 if ((iface_index != USB_IFACE_INDEX_ANY) &&
704 (iface_index != ips.iface_index)) {
705 /* wrong interface */
707 } else if (alt_index != ips.iface_index_alt) {
708 /* wrong alternate setting */
711 /* initialise interface */
717 /* check for new interface */
718 if (ips.iface_index_alt == 0) {
719 /* update current number of endpoints */
724 /* setup the USB interface structure */
726 /* default setting */
727 iface->parent_iface_index = USB_IFACE_INDEX_ANY;
728 /* set alternate index */
729 iface->alt_index = alt_index;
732 DPRINTFN(5, "found idesc nendpt=%d\n", id->bNumEndpoints);
734 ed = (struct usb_endpoint_descriptor *)id;
738 /* iterate all the endpoint descriptors */
739 while ((ed = usb_edesc_foreach(udev->cdesc, ed))) {
741 if (temp == USB_EP_MAX)
744 ep = udev->endpoints + temp;
747 usb_init_endpoint(udev,
748 ips.iface_index, ed, ep);
753 /* find maximum number of endpoints */
758 id = (struct usb_interface_descriptor *)ed;
762 /* NOTE: It is valid to have no interfaces and no endpoints! */
764 if (cmd == USB_CFG_ALLOC) {
765 udev->ifaces_max = ips.iface_index;
767 if (udev->ifaces_max != 0) {
768 udev->ifaces = malloc(sizeof(*iface) * udev->ifaces_max,
769 M_USB, M_WAITOK | M_ZERO);
770 if (udev->ifaces == NULL) {
776 udev->endpoints = malloc(sizeof(*ep) * ep_max,
777 M_USB, M_WAITOK | M_ZERO);
778 if (udev->endpoints == NULL) {
783 udev->endpoints = NULL;
785 USB_BUS_LOCK(udev->bus);
786 udev->endpoints_max = ep_max;
787 /* reset any ongoing clear-stall */
788 udev->ep_curr = NULL;
789 USB_BUS_UNLOCK(udev->bus);
794 if (cmd == USB_CFG_ALLOC) {
796 USB_BUS_LOCK(udev->bus);
797 udev->endpoints_max = 0;
798 /* reset any ongoing clear-stall */
799 udev->ep_curr = NULL;
800 USB_BUS_UNLOCK(udev->bus);
803 if (udev->ifaces != NULL)
804 free(udev->ifaces, M_USB);
805 if (udev->endpoints != NULL)
806 free(udev->endpoints, M_USB);
809 udev->endpoints = NULL;
810 udev->ifaces_max = 0;
816 /*------------------------------------------------------------------------*
817 * usbd_set_alt_interface_index
819 * This function will select an alternate interface index for the
820 * given interface index. The interface should not be in use when this
821 * function is called. That means there should not be any open USB
822 * transfers. Else an error is returned. If the alternate setting is
823 * already set this function will simply return success. This function
824 * is called in Host mode and Device mode!
829 *------------------------------------------------------------------------*/
831 usbd_set_alt_interface_index(struct usb_device *udev,
832 uint8_t iface_index, uint8_t alt_index)
834 struct usb_interface *iface = usbd_get_iface(udev, iface_index);
838 /* automatic locking */
839 if (usbd_enum_is_locked(udev)) {
843 usbd_enum_lock(udev);
849 if (iface->alt_index == alt_index) {
851 * Optimise away duplicate setting of
852 * alternate setting in USB Host Mode!
859 * Free all generic FIFOs for this interface, except control
862 usb_fifo_free_wrap(udev, iface_index, 0);
865 err = usb_config_parse(udev, iface_index, alt_index);
869 if (iface->alt_index != alt_index) {
870 /* the alternate setting does not exist */
875 err = usbd_req_set_alt_interface_no(udev, NULL, iface_index,
876 iface->idesc->bAlternateSetting);
880 usbd_enum_unlock(udev);
885 /*------------------------------------------------------------------------*
886 * usbd_set_endpoint_stall
888 * This function is used to make a BULK or INTERRUPT endpoint
894 *------------------------------------------------------------------------*/
896 usbd_set_endpoint_stall(struct usb_device *udev, struct usb_endpoint *ep,
899 struct usb_xfer *xfer;
905 DPRINTF("Cannot find endpoint\n");
907 * Pretend that the clear or set stall request is
908 * successful else some USB host stacks can do
909 * strange things, especially when a control endpoint
914 et = (ep->edesc->bmAttributes & UE_XFERTYPE);
916 if ((et != UE_BULK) &&
917 (et != UE_INTERRUPT)) {
919 * Should not stall control
920 * nor isochronous endpoints.
922 DPRINTF("Invalid endpoint\n");
925 USB_BUS_LOCK(udev->bus);
927 /* store current stall state */
928 was_stalled = ep->is_stalled;
930 /* check for no change */
931 if (was_stalled && do_stall) {
932 /* if the endpoint is already stalled do nothing */
933 USB_BUS_UNLOCK(udev->bus);
934 DPRINTF("No change\n");
937 /* set stalled state */
940 if (do_stall || (!was_stalled)) {
942 /* lookup the current USB transfer, if any */
943 xfer = ep->endpoint_q.curr;
949 * If "xfer" is non-NULL the "set_stall" method will
950 * complete the USB transfer like in case of a timeout
951 * setting the error code "USB_ERR_STALLED".
953 (udev->bus->methods->set_stall) (udev, xfer, ep, &do_stall);
956 ep->toggle_next = 0; /* reset data toggle */
957 ep->is_stalled = 0; /* clear stalled state */
959 (udev->bus->methods->clear_stall) (udev, ep);
961 /* start up the current or next transfer, if any */
962 usb_command_wrapper(&ep->endpoint_q, ep->endpoint_q.curr);
964 USB_BUS_UNLOCK(udev->bus);
968 /*------------------------------------------------------------------------*
969 * usb_reset_iface_endpoints - used in USB device side mode
970 *------------------------------------------------------------------------*/
972 usb_reset_iface_endpoints(struct usb_device *udev, uint8_t iface_index)
974 struct usb_endpoint *ep;
975 struct usb_endpoint *ep_end;
977 ep = udev->endpoints;
978 ep_end = udev->endpoints + udev->endpoints_max;
980 for (; ep != ep_end; ep++) {
982 if ((ep->edesc == NULL) ||
983 (ep->iface_index != iface_index)) {
986 /* simulate a clear stall from the peer */
987 usbd_set_endpoint_stall(udev, ep, 0);
992 /*------------------------------------------------------------------------*
993 * usb_detach_device_sub
995 * This function will try to detach an USB device. If it fails a panic
998 * Flag values, see "USB_UNCFG_FLAG_XXX".
999 *------------------------------------------------------------------------*/
1001 usb_detach_device_sub(struct usb_device *udev, device_t *ppdev,
1010 * NOTE: It is important to clear "*ppdev" before deleting
1011 * the child due to some device methods being called late
1012 * during the delete process !
1016 device_printf(dev, "at %s, port %d, addr %d "
1018 device_get_nameunit(udev->parent_dev),
1019 udev->port_no, udev->address);
1021 if (device_is_attached(dev)) {
1022 if (udev->flags.peer_suspended) {
1023 err = DEVICE_RESUME(dev);
1025 device_printf(dev, "Resume failed\n");
1028 if (device_detach(dev)) {
1032 if (device_delete_child(udev->parent_dev, dev)) {
1039 /* Detach is not allowed to fail in the USB world */
1040 panic("A USB driver would not detach\n");
1043 /*------------------------------------------------------------------------*
1046 * The following function will detach the matching interfaces.
1047 * This function is NULL safe.
1049 * Flag values, see "USB_UNCFG_FLAG_XXX".
1050 *------------------------------------------------------------------------*/
1052 usb_detach_device(struct usb_device *udev, uint8_t iface_index,
1055 struct usb_interface *iface;
1062 DPRINTFN(4, "udev=%p\n", udev);
1064 sx_assert(udev->default_sx + 1, SA_LOCKED);
1067 * First detach the child to give the child's detach routine a
1068 * chance to detach the sub-devices in the correct order.
1069 * Then delete the child using "device_delete_child()" which
1070 * will detach all sub-devices from the bottom and upwards!
1072 if (iface_index != USB_IFACE_INDEX_ANY) {
1074 iface_index = i + 1;
1077 iface_index = USB_IFACE_MAX;
1082 for (; i != iface_index; i++) {
1084 iface = usbd_get_iface(udev, i);
1085 if (iface == NULL) {
1086 /* looks like the end of the USB interfaces */
1089 usb_detach_device_sub(udev, &iface->subdev, flag);
1093 /*------------------------------------------------------------------------*
1094 * usb_probe_and_attach_sub
1099 *------------------------------------------------------------------------*/
1101 usb_probe_and_attach_sub(struct usb_device *udev,
1102 struct usb_attach_arg *uaa)
1104 struct usb_interface *iface;
1109 if (iface->parent_iface_index != USB_IFACE_INDEX_ANY) {
1110 /* leave interface alone */
1113 dev = iface->subdev;
1116 /* clean up after module unload */
1118 if (device_is_attached(dev)) {
1119 /* already a device there */
1122 /* clear "iface->subdev" as early as possible */
1124 iface->subdev = NULL;
1126 if (device_delete_child(udev->parent_dev, dev)) {
1129 * Panic here, else one can get a double call
1130 * to device_detach(). USB devices should
1131 * never fail on detach!
1133 panic("device_delete_child() failed\n");
1136 if (uaa->temp_dev == NULL) {
1138 /* create a new child */
1139 uaa->temp_dev = device_add_child(udev->parent_dev, NULL, -1);
1140 if (uaa->temp_dev == NULL) {
1141 device_printf(udev->parent_dev,
1142 "Device creation failed\n");
1143 return (1); /* failure */
1145 device_set_ivars(uaa->temp_dev, uaa);
1146 device_quiet(uaa->temp_dev);
1149 * Set "subdev" before probe and attach so that "devd" gets
1150 * the information it needs.
1152 iface->subdev = uaa->temp_dev;
1154 if (device_probe_and_attach(iface->subdev) == 0) {
1156 * The USB attach arguments are only available during probe
1159 uaa->temp_dev = NULL;
1160 device_set_ivars(iface->subdev, NULL);
1162 if (udev->flags.peer_suspended) {
1163 err = DEVICE_SUSPEND(iface->subdev);
1165 device_printf(iface->subdev, "Suspend failed\n");
1167 return (0); /* success */
1169 /* No USB driver found */
1170 iface->subdev = NULL;
1172 return (1); /* failure */
1175 /*------------------------------------------------------------------------*
1176 * usbd_set_parent_iface
1178 * Using this function will lock the alternate interface setting on an
1179 * interface. It is typically used for multi interface drivers. In USB
1180 * device side mode it is assumed that the alternate interfaces all
1181 * have the same endpoint descriptors. The default parent index value
1182 * is "USB_IFACE_INDEX_ANY". Then the alternate setting value is not
1184 *------------------------------------------------------------------------*/
1186 usbd_set_parent_iface(struct usb_device *udev, uint8_t iface_index,
1187 uint8_t parent_index)
1189 struct usb_interface *iface;
1191 iface = usbd_get_iface(udev, iface_index);
1193 iface->parent_iface_index = parent_index;
1198 usb_init_attach_arg(struct usb_device *udev,
1199 struct usb_attach_arg *uaa)
1201 bzero(uaa, sizeof(*uaa));
1204 uaa->usb_mode = udev->flags.usb_mode;
1205 uaa->port = udev->port_no;
1206 uaa->dev_state = UAA_DEV_READY;
1208 uaa->info.idVendor = UGETW(udev->ddesc.idVendor);
1209 uaa->info.idProduct = UGETW(udev->ddesc.idProduct);
1210 uaa->info.bcdDevice = UGETW(udev->ddesc.bcdDevice);
1211 uaa->info.bDeviceClass = udev->ddesc.bDeviceClass;
1212 uaa->info.bDeviceSubClass = udev->ddesc.bDeviceSubClass;
1213 uaa->info.bDeviceProtocol = udev->ddesc.bDeviceProtocol;
1214 uaa->info.bConfigIndex = udev->curr_config_index;
1215 uaa->info.bConfigNum = udev->curr_config_no;
1218 /*------------------------------------------------------------------------*
1219 * usb_probe_and_attach
1221 * This function is called from "uhub_explore_sub()",
1222 * "usb_handle_set_config()" and "usb_handle_request()".
1226 * Else: A control transfer failed
1227 *------------------------------------------------------------------------*/
1229 usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index)
1231 struct usb_attach_arg uaa;
1232 struct usb_interface *iface;
1238 DPRINTF("udev == NULL\n");
1239 return (USB_ERR_INVAL);
1241 /* automatic locking */
1242 if (usbd_enum_is_locked(udev)) {
1246 usbd_enum_lock(udev);
1249 if (udev->curr_config_index == USB_UNCONFIG_INDEX) {
1250 /* do nothing - no configuration has been set */
1253 /* setup USB attach arguments */
1255 usb_init_attach_arg(udev, &uaa);
1257 /* Check if only one interface should be probed: */
1258 if (iface_index != USB_IFACE_INDEX_ANY) {
1266 /* Do the probe and attach */
1267 for (; i != j; i++) {
1269 iface = usbd_get_iface(udev, i);
1270 if (iface == NULL) {
1272 * Looks like the end of the USB
1275 DPRINTFN(2, "end of interfaces "
1279 if (iface->idesc == NULL) {
1280 /* no interface descriptor */
1285 uaa.info.bInterfaceClass =
1286 iface->idesc->bInterfaceClass;
1287 uaa.info.bInterfaceSubClass =
1288 iface->idesc->bInterfaceSubClass;
1289 uaa.info.bInterfaceProtocol =
1290 iface->idesc->bInterfaceProtocol;
1291 uaa.info.bIfaceIndex = i;
1292 uaa.info.bIfaceNum =
1293 iface->idesc->bInterfaceNumber;
1294 uaa.use_generic = 0;
1295 uaa.driver_info = 0; /* reset driver_info */
1297 DPRINTFN(2, "iclass=%u/%u/%u iindex=%u/%u\n",
1298 uaa.info.bInterfaceClass,
1299 uaa.info.bInterfaceSubClass,
1300 uaa.info.bInterfaceProtocol,
1301 uaa.info.bIfaceIndex,
1302 uaa.info.bIfaceNum);
1304 /* try specific interface drivers first */
1306 if (usb_probe_and_attach_sub(udev, &uaa)) {
1309 /* try generic interface drivers last */
1311 uaa.use_generic = 1;
1312 uaa.driver_info = 0; /* reset driver_info */
1314 if (usb_probe_and_attach_sub(udev, &uaa)) {
1320 /* remove the last created child; it is unused */
1322 if (device_delete_child(udev->parent_dev, uaa.temp_dev)) {
1323 DPRINTFN(0, "device delete child failed\n");
1328 usbd_enum_unlock(udev);
1333 /*------------------------------------------------------------------------*
1334 * usb_suspend_resume_sub
1336 * This function is called when the suspend or resume methods should
1337 * be executed on an USB device.
1338 *------------------------------------------------------------------------*/
1340 usb_suspend_resume_sub(struct usb_device *udev, device_t dev, uint8_t do_suspend)
1347 if (!device_is_attached(dev)) {
1351 err = DEVICE_SUSPEND(dev);
1353 err = DEVICE_RESUME(dev);
1356 device_printf(dev, "%s failed\n",
1357 do_suspend ? "Suspend" : "Resume");
1361 /*------------------------------------------------------------------------*
1362 * usb_suspend_resume
1364 * The following function will suspend or resume the USB device.
1369 *------------------------------------------------------------------------*/
1371 usb_suspend_resume(struct usb_device *udev, uint8_t do_suspend)
1373 struct usb_interface *iface;
1380 DPRINTFN(4, "udev=%p do_suspend=%d\n", udev, do_suspend);
1382 sx_assert(udev->default_sx + 1, SA_LOCKED);
1384 USB_BUS_LOCK(udev->bus);
1385 /* filter the suspend events */
1386 if (udev->flags.peer_suspended == do_suspend) {
1387 USB_BUS_UNLOCK(udev->bus);
1391 udev->flags.peer_suspended = do_suspend;
1392 USB_BUS_UNLOCK(udev->bus);
1394 /* do the suspend or resume */
1396 for (i = 0; i != USB_IFACE_MAX; i++) {
1398 iface = usbd_get_iface(udev, i);
1399 if (iface == NULL) {
1400 /* looks like the end of the USB interfaces */
1403 usb_suspend_resume_sub(udev, iface->subdev, do_suspend);
1408 /*------------------------------------------------------------------------*
1409 * usbd_clear_stall_proc
1411 * This function performs generic USB clear stall operations.
1412 *------------------------------------------------------------------------*/
1414 usbd_clear_stall_proc(struct usb_proc_msg *_pm)
1416 struct usb_clear_stall_msg *pm = (void *)_pm;
1417 struct usb_device *udev = pm->udev;
1420 USB_BUS_UNLOCK(udev->bus);
1421 mtx_lock(udev->default_mtx);
1423 /* Start clear stall callback */
1424 usbd_transfer_start(udev->default_xfer[1]);
1427 mtx_unlock(udev->default_mtx);
1428 USB_BUS_LOCK(udev->bus);
1431 /*------------------------------------------------------------------------*
1434 * This function allocates a new USB device. This function is called
1435 * when a new device has been put in the powered state, but not yet in
1436 * the addressed state. Get initial descriptor, set the address, get
1437 * full descriptor and get strings.
1442 *------------------------------------------------------------------------*/
1444 usb_alloc_device(device_t parent_dev, struct usb_bus *bus,
1445 struct usb_device *parent_hub, uint8_t depth, uint8_t port_index,
1446 uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode)
1448 struct usb_attach_arg uaa;
1449 struct usb_device *udev;
1450 struct usb_device *adev;
1451 struct usb_device *hub;
1452 uint8_t *scratch_ptr;
1453 size_t scratch_size;
1455 uint8_t device_index;
1456 uint8_t config_index;
1457 uint8_t config_quirk;
1458 uint8_t set_config_failed;
1460 DPRINTF("parent_dev=%p, bus=%p, parent_hub=%p, depth=%u, "
1461 "port_index=%u, port_no=%u, speed=%u, usb_mode=%u\n",
1462 parent_dev, bus, parent_hub, depth, port_index, port_no,
1466 * Find an unused device index. In USB Host mode this is the
1467 * same as the device address.
1469 * Device index zero is not used and device index 1 should
1470 * always be the root hub.
1472 for (device_index = USB_ROOT_HUB_ADDR;
1473 (device_index != bus->devices_max) &&
1474 (bus->devices[device_index] != NULL);
1475 device_index++) /* nop */;
1477 if (device_index == bus->devices_max) {
1478 device_printf(bus->bdev,
1479 "No free USB device index for new device\n");
1484 device_printf(bus->bdev,
1485 "Invalid device depth\n");
1488 udev = malloc(sizeof(*udev), M_USB, M_WAITOK | M_ZERO);
1492 /* initialise our SX-lock */
1493 sx_init(udev->default_sx, "0123456789ABCDEF - USB device SX lock" + depth);
1495 /* initialise our SX-lock */
1496 sx_init(udev->default_sx + 1, "0123456789ABCDEF - USB config SX lock" + depth);
1498 cv_init(udev->default_cv, "WCTRL");
1499 cv_init(udev->default_cv + 1, "UGONE");
1501 /* initialise our mutex */
1502 mtx_init(udev->default_mtx, "USB device mutex", NULL, MTX_DEF);
1504 /* initialise generic clear stall */
1505 udev->cs_msg[0].hdr.pm_callback = &usbd_clear_stall_proc;
1506 udev->cs_msg[0].udev = udev;
1507 udev->cs_msg[1].hdr.pm_callback = &usbd_clear_stall_proc;
1508 udev->cs_msg[1].udev = udev;
1510 /* initialise some USB device fields */
1511 udev->parent_hub = parent_hub;
1512 udev->parent_dev = parent_dev;
1513 udev->port_index = port_index;
1514 udev->port_no = port_no;
1515 udev->depth = depth;
1517 udev->address = USB_START_ADDR; /* default value */
1518 udev->plugtime = (usb_ticks_t)ticks;
1519 usb_set_device_state(udev, USB_STATE_POWERED);
1521 * We need to force the power mode to "on" because there are plenty
1522 * of USB devices out there that do not work very well with
1523 * automatic suspend and resume!
1525 udev->power_mode = USB_POWER_MODE_ON;
1526 udev->pwr_save.last_xfer_time = ticks;
1527 /* we are not ready yet */
1530 /* set up default endpoint descriptor */
1531 udev->default_ep_desc.bLength = sizeof(udev->default_ep_desc);
1532 udev->default_ep_desc.bDescriptorType = UDESC_ENDPOINT;
1533 udev->default_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
1534 udev->default_ep_desc.bmAttributes = UE_CONTROL;
1535 udev->default_ep_desc.wMaxPacketSize[0] = USB_MAX_IPACKET;
1536 udev->default_ep_desc.wMaxPacketSize[1] = 0;
1537 udev->default_ep_desc.bInterval = 0;
1538 udev->ddesc.bMaxPacketSize = USB_MAX_IPACKET;
1540 udev->speed = speed;
1541 udev->flags.usb_mode = mode;
1543 /* search for our High Speed USB HUB, if any */
1546 hub = udev->parent_hub;
1549 if (hub->speed == USB_SPEED_HIGH) {
1550 udev->hs_hub_addr = hub->address;
1551 udev->parent_hs_hub = hub;
1552 udev->hs_port_no = adev->port_no;
1556 hub = hub->parent_hub;
1559 /* init the default endpoint */
1560 usb_init_endpoint(udev, 0,
1561 &udev->default_ep_desc,
1564 /* set device index */
1565 udev->device_index = device_index;
1568 /* Create ugen name */
1569 snprintf(udev->ugen_name, sizeof(udev->ugen_name),
1570 USB_GENERIC_NAME "%u.%u", device_get_unit(bus->bdev),
1572 LIST_INIT(&udev->pd_list);
1574 /* Create the control endpoint device */
1575 udev->default_dev = usb_make_dev(udev, 0, FREAD|FWRITE);
1577 /* Create a link from /dev/ugenX.X to the default endpoint */
1578 make_dev_alias(udev->default_dev, udev->ugen_name);
1580 if (udev->flags.usb_mode == USB_MODE_HOST) {
1582 err = usbd_req_set_address(udev, NULL, device_index);
1584 /* This is the new USB device address from now on */
1586 udev->address = device_index;
1589 * We ignore any set-address errors, hence there are
1590 * buggy USB devices out there that actually receive
1591 * the SETUP PID, but manage to set the address before
1592 * the STATUS stage is ACK'ed. If the device responds
1593 * to the subsequent get-descriptor at the new
1594 * address, then we know that the set-address command
1598 DPRINTFN(0, "set address %d failed "
1599 "(%s, ignored)\n", udev->address,
1602 /* allow device time to set new address */
1604 USB_MS_TO_TICKS(USB_SET_ADDRESS_SETTLE));
1606 /* We are not self powered */
1607 udev->flags.self_powered = 0;
1609 /* Set unconfigured state */
1610 udev->curr_config_no = USB_UNCONFIG_NO;
1611 udev->curr_config_index = USB_UNCONFIG_INDEX;
1613 /* Setup USB descriptors */
1614 err = (usb_temp_setup_by_index_p) (udev, usb_template);
1616 DPRINTFN(0, "setting up USB template failed maybe the USB "
1617 "template module has not been loaded\n");
1621 usb_set_device_state(udev, USB_STATE_ADDRESSED);
1624 * Get the first 8 bytes of the device descriptor !
1626 * NOTE: "usbd_do_request" will check the device descriptor
1627 * next time we do a request to see if the maximum packet size
1628 * changed! The 8 first bytes of the device descriptor
1629 * contains the maximum packet size to use on control endpoint
1630 * 0. If this value is different from "USB_MAX_IPACKET" a new
1631 * USB control request will be setup!
1633 err = usbd_req_get_desc(udev, NULL, NULL, &udev->ddesc,
1634 USB_MAX_IPACKET, USB_MAX_IPACKET, 0, UDESC_DEVICE, 0, 0);
1636 DPRINTFN(0, "getting device descriptor "
1637 "at addr %d failed, %s\n", udev->address,
1639 /* XXX try to re-enumerate the device */
1640 err = usbd_req_re_enumerate(udev, NULL);
1645 DPRINTF("adding unit addr=%d, rev=%02x, class=%d, "
1646 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, speed=%d\n",
1647 udev->address, UGETW(udev->ddesc.bcdUSB),
1648 udev->ddesc.bDeviceClass,
1649 udev->ddesc.bDeviceSubClass,
1650 udev->ddesc.bDeviceProtocol,
1651 udev->ddesc.bMaxPacketSize,
1652 udev->ddesc.bLength,
1655 /* get the full device descriptor */
1656 err = usbd_req_get_device_desc(udev, NULL, &udev->ddesc);
1658 DPRINTF("addr=%d, getting full desc failed\n",
1663 * Setup temporary USB attach args so that we can figure out some
1664 * basic quirks for this device.
1666 usb_init_attach_arg(udev, &uaa);
1668 if (usb_test_quirk(&uaa, UQ_BUS_POWERED)) {
1669 udev->flags.uq_bus_powered = 1;
1671 if (usb_test_quirk(&uaa, UQ_NO_STRINGS)) {
1672 udev->flags.no_strings = 1;
1675 * Workaround for buggy USB devices.
1677 * It appears that some string-less USB chips will crash and
1678 * disappear if any attempts are made to read any string
1681 * Try to detect such chips by checking the strings in the USB
1682 * device descriptor. If no strings are present there we
1683 * simply disable all USB strings.
1685 scratch_ptr = udev->bus->scratch[0].data;
1686 scratch_size = sizeof(udev->bus->scratch[0].data);
1688 if (udev->ddesc.iManufacturer ||
1689 udev->ddesc.iProduct ||
1690 udev->ddesc.iSerialNumber) {
1691 /* read out the language ID string */
1692 err = usbd_req_get_string_desc(udev, NULL,
1693 (char *)scratch_ptr, 4, 0, USB_LANGUAGE_TABLE);
1695 err = USB_ERR_INVAL;
1698 if (err || (scratch_ptr[0] < 4)) {
1699 udev->flags.no_strings = 1;
1706 /* load preferred value and mask */
1708 mask = usb_lang_mask;
1710 /* align length correctly */
1711 scratch_ptr[0] &= ~1;
1713 /* fix compiler warning */
1716 /* search for preferred language */
1717 for (x = 2; (x < scratch_ptr[0]); x += 2) {
1718 langid = UGETW(scratch_ptr + x);
1719 if ((langid & mask) == pref)
1722 if (x >= scratch_ptr[0]) {
1723 /* pick the first language as the default */
1724 DPRINTFN(1, "Using first language\n");
1725 langid = UGETW(scratch_ptr + 2);
1728 DPRINTFN(1, "Language selected: 0x%04x\n", langid);
1729 udev->langid = langid;
1732 /* assume 100mA bus powered for now. Changed when configured. */
1733 udev->power = USB_MIN_POWER;
1734 /* fetch the vendor and product strings from the device */
1735 usbd_set_device_strings(udev);
1737 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
1738 /* USB device mode setup is complete */
1744 * Most USB devices should attach to config index 0 by
1747 if (usb_test_quirk(&uaa, UQ_CFG_INDEX_0)) {
1750 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_1)) {
1753 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_2)) {
1756 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_3)) {
1759 } else if (usb_test_quirk(&uaa, UQ_CFG_INDEX_4)) {
1767 set_config_failed = 0;
1770 DPRINTF("setting config %u\n", config_index);
1772 /* get the USB device configured */
1773 err = usbd_set_config_index(udev, config_index);
1775 if (udev->ddesc.bNumConfigurations != 0) {
1776 if (!set_config_failed) {
1777 set_config_failed = 1;
1778 /* XXX try to re-enumerate the device */
1779 err = usbd_req_re_enumerate(udev, NULL);
1781 goto repeat_set_config;
1783 DPRINTFN(0, "Failure selecting configuration index %u:"
1784 "%s, port %u, addr %u (ignored)\n",
1785 config_index, usbd_errstr(err), udev->port_no,
1789 * Some USB devices do not have any configurations. Ignore any
1790 * set config failures!
1795 if (!config_quirk && config_index + 1 < udev->ddesc.bNumConfigurations) {
1796 if ((udev->cdesc->bNumInterface < 2) &&
1797 usbd_get_no_descriptors(udev->cdesc, UDESC_ENDPOINT) == 0) {
1798 DPRINTFN(0, "Found no endpoints, trying next config\n");
1800 goto repeat_set_config;
1802 if (config_index == 0) {
1804 * Try to figure out if we have an
1805 * auto-install disk there:
1807 if (usb_iface_is_cdrom(udev, 0)) {
1808 DPRINTFN(0, "Found possible auto-install "
1809 "disk (trying next config)\n");
1811 goto repeat_set_config;
1815 EVENTHANDLER_INVOKE(usb_dev_configured, udev, &uaa);
1816 if (uaa.dev_state != UAA_DEV_READY) {
1817 /* leave device unconfigured */
1818 usb_unconfigure(udev, 0);
1822 DPRINTF("new dev (addr %d), udev=%p, parent_hub=%p\n",
1823 udev->address, udev, udev->parent_hub);
1825 /* register our device - we are ready */
1826 usb_bus_port_set_device(bus, parent_hub ?
1827 parent_hub->hub->ports + port_index : NULL, udev, device_index);
1830 /* Symlink the ugen device name */
1831 udev->ugen_symlink = usb_alloc_symlink(udev->ugen_name);
1833 /* Announce device */
1834 printf("%s: <%s> at %s\n", udev->ugen_name, udev->manufacturer,
1835 device_get_nameunit(udev->bus->bdev));
1837 usb_notify_addq("+", udev);
1842 * Free USB device and all subdevices, if any.
1844 usb_free_device(udev, 0);
1851 static struct cdev *
1852 usb_make_dev(struct usb_device *udev, int ep, int mode)
1854 struct usb_fs_privdata* pd;
1857 /* Store information to locate ourselves again later */
1858 pd = malloc(sizeof(struct usb_fs_privdata), M_USBDEV,
1860 pd->bus_index = device_get_unit(udev->bus->bdev);
1861 pd->dev_index = udev->device_index;
1865 /* Now, create the device itself */
1866 snprintf(devname, sizeof(devname), "%u.%u.%u",
1867 pd->bus_index, pd->dev_index, pd->ep_addr);
1868 pd->cdev = make_dev(&usb_devsw, 0, UID_ROOT,
1869 GID_OPERATOR, 0600, USB_DEVICE_DIR "/%s", devname);
1870 pd->cdev->si_drv1 = pd;
1876 usb_cdev_create(struct usb_device *udev)
1878 struct usb_config_descriptor *cd;
1879 struct usb_endpoint_descriptor *ed;
1880 struct usb_descriptor *desc;
1881 struct usb_fs_privdata* pd;
1883 int inmode, outmode, inmask, outmask, mode;
1886 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("stale cdev entries"));
1888 DPRINTFN(2, "Creating device nodes\n");
1890 if (usbd_get_mode(udev) == USB_MODE_DEVICE) {
1893 } else { /* USB_MODE_HOST */
1903 * Collect all used endpoint numbers instead of just
1904 * generating 16 static endpoints.
1906 cd = usbd_get_config_descriptor(udev);
1907 while ((desc = usb_desc_foreach(cd, desc))) {
1908 /* filter out all endpoint descriptors */
1909 if ((desc->bDescriptorType == UDESC_ENDPOINT) &&
1910 (desc->bLength >= sizeof(*ed))) {
1911 ed = (struct usb_endpoint_descriptor *)desc;
1914 ep = ed->bEndpointAddress;
1915 if (UE_GET_DIR(ep) == UE_DIR_OUT)
1916 outmask |= 1 << UE_GET_ADDR(ep);
1918 inmask |= 1 << UE_GET_ADDR(ep);
1922 /* Create all available endpoints except EP0 */
1923 for (ep = 1; ep < 16; ep++) {
1924 mode = inmask & (1 << ep) ? inmode : 0;
1925 mode |= outmask & (1 << ep) ? outmode : 0;
1927 continue; /* no IN or OUT endpoint */
1929 dev = usb_make_dev(udev, ep, mode);
1931 LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next);
1936 usb_cdev_free(struct usb_device *udev)
1938 struct usb_fs_privdata* pd;
1941 DPRINTFN(2, "Freeing device nodes\n");
1943 while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) {
1944 KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt"));
1948 LIST_REMOVE(pd, pd_next);
1950 destroy_dev_sched_cb(pcdev, usb_cdev_cleanup, pd);
1955 usb_cdev_cleanup(void* arg)
1957 free(arg, M_USBDEV);
1961 /*------------------------------------------------------------------------*
1964 * This function is NULL safe and will free an USB device and its
1965 * children devices, if any.
1967 * Flag values: Reserved, set to zero.
1968 *------------------------------------------------------------------------*/
1970 usb_free_device(struct usb_device *udev, uint8_t flag)
1972 struct usb_bus *bus;
1975 return; /* already freed */
1977 DPRINTFN(4, "udev=%p port=%d\n", udev, udev->port_no);
1980 usb_set_device_state(udev, USB_STATE_DETACHED);
1983 usb_notify_addq("-", udev);
1985 printf("%s: <%s> at %s (disconnected)\n", udev->ugen_name,
1986 udev->manufacturer, device_get_nameunit(bus->bdev));
1988 /* Destroy UGEN symlink, if any */
1989 if (udev->ugen_symlink) {
1990 usb_free_symlink(udev->ugen_symlink);
1991 udev->ugen_symlink = NULL;
1995 * Unregister our device first which will prevent any further
1998 usb_bus_port_set_device(bus, udev->parent_hub ?
1999 udev->parent_hub->hub->ports + udev->port_index : NULL,
2000 NULL, USB_ROOT_HUB_ADDR);
2003 /* wait for all pending references to go away: */
2004 mtx_lock(&usb_ref_lock);
2006 while (udev->refcount != 0) {
2007 cv_wait(udev->default_cv + 1, &usb_ref_lock);
2009 mtx_unlock(&usb_ref_lock);
2011 destroy_dev_sched_cb(udev->default_dev, usb_cdev_cleanup,
2012 udev->default_dev->si_drv1);
2015 if (udev->flags.usb_mode == USB_MODE_DEVICE) {
2016 /* stop receiving any control transfers (Device Side Mode) */
2017 usbd_transfer_unsetup(udev->default_xfer, USB_DEFAULT_XFER_MAX);
2020 /* the following will get the device unconfigured in software */
2021 usb_unconfigure(udev, USB_UNCFG_FLAG_FREE_EP0);
2023 /* unsetup any leftover default USB transfers */
2024 usbd_transfer_unsetup(udev->default_xfer, USB_DEFAULT_XFER_MAX);
2026 /* template unsetup, if any */
2027 (usb_temp_unsetup_p) (udev);
2030 * Make sure that our clear-stall messages are not queued
2033 USB_BUS_LOCK(udev->bus);
2034 usb_proc_mwait(&udev->bus->non_giant_callback_proc,
2035 &udev->cs_msg[0], &udev->cs_msg[1]);
2036 USB_BUS_UNLOCK(udev->bus);
2038 sx_destroy(udev->default_sx);
2039 sx_destroy(udev->default_sx + 1);
2041 cv_destroy(udev->default_cv);
2042 cv_destroy(udev->default_cv + 1);
2044 mtx_destroy(udev->default_mtx);
2046 KASSERT(LIST_FIRST(&udev->pd_list) == NULL, ("leaked cdev entries"));
2050 free(udev->serial, M_USB);
2051 free(udev->manufacturer, M_USB);
2052 free(udev->product, M_USB);
2056 /*------------------------------------------------------------------------*
2059 * This function is the safe way to get the USB interface structure
2060 * pointer by interface index.
2063 * NULL: Interface not present.
2064 * Else: Pointer to USB interface structure.
2065 *------------------------------------------------------------------------*/
2066 struct usb_interface *
2067 usbd_get_iface(struct usb_device *udev, uint8_t iface_index)
2069 struct usb_interface *iface = udev->ifaces + iface_index;
2071 if (iface_index >= udev->ifaces_max)
2076 /*------------------------------------------------------------------------*
2077 * usbd_find_descriptor
2079 * This function will lookup the first descriptor that matches the
2080 * criteria given by the arguments "type" and "subtype". Descriptors
2081 * will only be searched within the interface having the index
2082 * "iface_index". If the "id" argument points to an USB descriptor,
2083 * it will be skipped before the search is started. This allows
2084 * searching for multiple descriptors using the same criteria. Else
2085 * the search is started after the interface descriptor.
2088 * NULL: End of descriptors
2089 * Else: A descriptor matching the criteria
2090 *------------------------------------------------------------------------*/
2092 usbd_find_descriptor(struct usb_device *udev, void *id, uint8_t iface_index,
2093 uint8_t type, uint8_t type_mask,
2094 uint8_t subtype, uint8_t subtype_mask)
2096 struct usb_descriptor *desc;
2097 struct usb_config_descriptor *cd;
2098 struct usb_interface *iface;
2100 cd = usbd_get_config_descriptor(udev);
2105 iface = usbd_get_iface(udev, iface_index);
2106 if (iface == NULL) {
2109 id = usbd_get_interface_descriptor(iface);
2116 while ((desc = usb_desc_foreach(cd, desc))) {
2118 if (desc->bDescriptorType == UDESC_INTERFACE) {
2121 if (((desc->bDescriptorType & type_mask) == type) &&
2122 ((desc->bDescriptorSubtype & subtype_mask) == subtype)) {
2129 /*------------------------------------------------------------------------*
2132 * This function will dump information from the device descriptor
2133 * belonging to the USB device pointed to by "udev", to the string
2134 * pointed to by "dst_ptr" having a maximum length of "dst_len" bytes
2135 * including the terminating zero.
2136 *------------------------------------------------------------------------*/
2138 usb_devinfo(struct usb_device *udev, char *dst_ptr, uint16_t dst_len)
2140 struct usb_device_descriptor *udd = &udev->ddesc;
2144 bcdUSB = UGETW(udd->bcdUSB);
2145 bcdDevice = UGETW(udd->bcdDevice);
2147 if (udd->bDeviceClass != 0xFF) {
2148 snprintf(dst_ptr, dst_len, "%s %s, class %d/%d, rev %x.%02x/"
2150 udev->manufacturer, udev->product,
2151 udd->bDeviceClass, udd->bDeviceSubClass,
2152 (bcdUSB >> 8), bcdUSB & 0xFF,
2153 (bcdDevice >> 8), bcdDevice & 0xFF,
2156 snprintf(dst_ptr, dst_len, "%s %s, rev %x.%02x/"
2158 udev->manufacturer, udev->product,
2159 (bcdUSB >> 8), bcdUSB & 0xFF,
2160 (bcdDevice >> 8), bcdDevice & 0xFF,
2167 * Descriptions of of known vendors and devices ("products").
2169 struct usb_knowndev {
2173 const char *vendorname;
2174 const char *productname;
2177 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
2179 #include "usbdevs.h"
2180 #include "usbdevs_data.h"
2181 #endif /* USB_VERBOSE */
2184 usbd_set_device_strings(struct usb_device *udev)
2186 struct usb_device_descriptor *udd = &udev->ddesc;
2188 const struct usb_knowndev *kdp;
2193 uint16_t product_id;
2195 temp_ptr = udev->bus->scratch[0].data;
2196 temp_size = sizeof(udev->bus->scratch[0].data);
2198 vendor_id = UGETW(udd->idVendor);
2199 product_id = UGETW(udd->idProduct);
2201 /* get serial number string */
2202 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2203 udev->ddesc.iSerialNumber);
2204 udev->serial = strdup(temp_ptr, M_USB);
2206 /* get manufacturer string */
2207 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2208 udev->ddesc.iManufacturer);
2209 usb_trim_spaces(temp_ptr);
2210 if (temp_ptr[0] != '\0')
2211 udev->manufacturer = strdup(temp_ptr, M_USB);
2213 /* get product string */
2214 usbd_req_get_string_any(udev, NULL, temp_ptr, temp_size,
2215 udev->ddesc.iProduct);
2216 usb_trim_spaces(temp_ptr);
2217 if (temp_ptr[0] != '\0')
2218 udev->product = strdup(temp_ptr, M_USB);
2221 if (udev->manufacturer == NULL || udev->product == NULL) {
2222 for (kdp = usb_knowndevs; kdp->vendorname != NULL; kdp++) {
2223 if (kdp->vendor == vendor_id &&
2224 (kdp->product == product_id ||
2225 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
2228 if (kdp->vendorname != NULL) {
2229 /* XXX should use pointer to knowndevs string */
2230 if (udev->manufacturer == NULL) {
2231 udev->manufacturer = strdup(kdp->vendorname,
2234 if (udev->product == NULL &&
2235 (kdp->flags & USB_KNOWNDEV_NOPROD) == 0) {
2236 udev->product = strdup(kdp->productname,
2242 /* Provide default strings if none were found */
2243 if (udev->manufacturer == NULL) {
2244 snprintf(temp_ptr, temp_size, "vendor 0x%04x", vendor_id);
2245 udev->manufacturer = strdup(temp_ptr, M_USB);
2247 if (udev->product == NULL) {
2248 snprintf(temp_ptr, temp_size, "product 0x%04x", product_id);
2249 udev->product = strdup(temp_ptr, M_USB);
2258 usbd_get_mode(struct usb_device *udev)
2260 return (udev->flags.usb_mode);
2265 * See: USB_SPEED_XXX
2268 usbd_get_speed(struct usb_device *udev)
2270 return (udev->speed);
2274 usbd_get_isoc_fps(struct usb_device *udev)
2277 switch (udev->speed) {
2279 case USB_SPEED_FULL:
2286 struct usb_device_descriptor *
2287 usbd_get_device_descriptor(struct usb_device *udev)
2290 return (NULL); /* be NULL safe */
2291 return (&udev->ddesc);
2294 struct usb_config_descriptor *
2295 usbd_get_config_descriptor(struct usb_device *udev)
2298 return (NULL); /* be NULL safe */
2299 return (udev->cdesc);
2302 /*------------------------------------------------------------------------*
2303 * usb_test_quirk - test a device for a given quirk
2306 * 0: The USB device does not have the given quirk.
2307 * Else: The USB device has the given quirk.
2308 *------------------------------------------------------------------------*/
2310 usb_test_quirk(const struct usb_attach_arg *uaa, uint16_t quirk)
2314 found = (usb_test_quirk_p) (&uaa->info, quirk);
2318 struct usb_interface_descriptor *
2319 usbd_get_interface_descriptor(struct usb_interface *iface)
2322 return (NULL); /* be NULL safe */
2323 return (iface->idesc);
2327 usbd_get_interface_altindex(struct usb_interface *iface)
2329 return (iface->alt_index);
2333 usbd_get_bus_index(struct usb_device *udev)
2335 return ((uint8_t)device_get_unit(udev->bus->bdev));
2339 usbd_get_device_index(struct usb_device *udev)
2341 return (udev->device_index);
2345 /*------------------------------------------------------------------------*
2348 * This function will generate events for dev.
2349 *------------------------------------------------------------------------*/
2351 usb_notify_addq(const char *type, struct usb_device *udev)
2354 struct malloc_type *mt;
2355 const size_t buf_size = 512;
2357 mtx_lock(&malloc_mtx);
2358 mt = malloc_desc2type("bus"); /* XXX M_BUS */
2359 mtx_unlock(&malloc_mtx);
2363 data = malloc(buf_size, mt, M_NOWAIT);
2367 /* String it all together. */
2368 snprintf(data, buf_size,
2374 "devsubclass=0x%02x "
2383 UGETW(udev->ddesc.idVendor),
2384 UGETW(udev->ddesc.idProduct),
2385 udev->ddesc.bDeviceClass,
2386 udev->ddesc.bDeviceSubClass,
2388 UGETW(udev->ddesc.bcdDevice),
2390 udev->parent_hub != NULL ?
2391 udev->parent_hub->ugen_name :
2392 device_get_nameunit(device_get_parent(udev->bus->bdev)));
2394 devctl_queue_data(data);
2397 /*------------------------------------------------------------------------*
2398 * usb_fifo_free_wrap
2400 * This function will free the FIFOs.
2402 * Description of "flag" argument: If the USB_UNCFG_FLAG_FREE_EP0 flag
2403 * is set and "iface_index" is set to "USB_IFACE_INDEX_ANY", we free
2404 * all FIFOs. If the USB_UNCFG_FLAG_FREE_EP0 flag is not set and
2405 * "iface_index" is set to "USB_IFACE_INDEX_ANY", we free all non
2406 * control endpoint FIFOs. If "iface_index" is not set to
2407 * "USB_IFACE_INDEX_ANY" the flag has no effect.
2408 *------------------------------------------------------------------------*/
2410 usb_fifo_free_wrap(struct usb_device *udev,
2411 uint8_t iface_index, uint8_t flag)
2417 * Free any USB FIFOs on the given interface:
2419 for (i = 0; i != USB_FIFO_MAX; i++) {
2424 /* Check if the interface index matches */
2425 if (iface_index == f->iface_index) {
2426 if (f->methods != &usb_ugen_methods) {
2428 * Don't free any non-generic FIFOs in
2433 if ((f->dev_ep_index == 0) &&
2434 (f->fs_xfer == NULL)) {
2435 /* no need to free this FIFO */
2438 } else if (iface_index == USB_IFACE_INDEX_ANY) {
2439 if ((f->methods == &usb_ugen_methods) &&
2440 (f->dev_ep_index == 0) &&
2441 (!(flag & USB_UNCFG_FLAG_FREE_EP0)) &&
2442 (f->fs_xfer == NULL)) {
2443 /* no need to free this FIFO */
2447 /* no need to free this FIFO */
2450 /* free this FIFO */
2456 /*------------------------------------------------------------------------*
2457 * usb_peer_can_wakeup
2460 * 0: Peer cannot do resume signalling.
2461 * Else: Peer can do resume signalling.
2462 *------------------------------------------------------------------------*/
2464 usb_peer_can_wakeup(struct usb_device *udev)
2466 const struct usb_config_descriptor *cdp;
2469 if ((cdp != NULL) && (udev->flags.usb_mode == USB_MODE_HOST)) {
2470 return (cdp->bmAttributes & UC_REMOTE_WAKEUP);
2472 return (0); /* not supported */
2476 usb_set_device_state(struct usb_device *udev, enum usb_dev_state state)
2479 KASSERT(state < USB_STATE_MAX, ("invalid udev state"));
2481 DPRINTF("udev %p state %s -> %s\n", udev,
2482 usb_statestr(udev->state), usb_statestr(state));
2483 udev->state = state;
2487 usbd_device_attached(struct usb_device *udev)
2489 return (udev->state > USB_STATE_DETACHED);
2492 /* The following function locks enumerating the given USB device. */
2495 usbd_enum_lock(struct usb_device *udev)
2497 sx_xlock(udev->default_sx + 1);
2499 * NEWBUS LOCK NOTE: We should check if any parent SX locks
2500 * are locked before locking Giant. Else the lock can be
2501 * locked multiple times.
2506 /* The following function unlocks enumerating the given USB device. */
2509 usbd_enum_unlock(struct usb_device *udev)
2512 sx_xunlock(udev->default_sx + 1);
2516 * The following function checks the enumerating lock for the given
2521 usbd_enum_is_locked(struct usb_device *udev)
2523 return (sx_xlocked(udev->default_sx + 1));