2 * $NetBSD: usb_subr.c,v 1.99 2002/07/11 21:14:34 augustss Exp $
3 * $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.58 2003/09/01 07:47:42 ticso Exp $
4 * $DragonFly: src/sys/bus/usb/usb_subr.c,v 1.14 2006/10/25 20:55:52 dillon Exp $
7 /* Also already have from NetBSD:
8 * $NetBSD: usb_subr.c,v 1.102 2003/01/01 16:21:50 augustss Exp $
9 * $NetBSD: usb_subr.c,v 1.103 2003/01/10 11:19:13 augustss Exp $
13 * Copyright (c) 1998 The NetBSD Foundation, Inc.
14 * All rights reserved.
16 * This code is derived from software contributed to The NetBSD Foundation
17 * by Lennart Augustsson (lennart@augustsson.net) at
18 * Carlstedt Research & Technology.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 * 3. All advertising materials mentioning features or use of this software
29 * must display the following acknowledgement:
30 * This product includes software developed by the NetBSD
31 * Foundation, Inc. and its contributors.
32 * 4. Neither the name of The NetBSD Foundation nor the names of its
33 * contributors may be used to endorse or promote products derived
34 * from this software without specific prior written permission.
36 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
37 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
38 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
40 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
41 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
42 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
43 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
44 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
46 * POSSIBILITY OF SUCH DAMAGE.
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/kernel.h>
52 #include <sys/malloc.h>
53 #include <sys/module.h>
60 #include "usbdi_util.h"
63 #include "usb_quirks.h"
65 #if defined(__FreeBSD__) || defined(__DragonFly__)
66 #include <machine/clock.h>
67 #define delay(d) DELAY(d)
71 #define DPRINTF(x) if (usbdebug) logprintf x
72 #define DPRINTFN(n,x) if (usbdebug>(n)) logprintf x
79 Static usbd_status usbd_set_config(usbd_device_handle, int);
80 Static void usbd_devinfo_vp(usbd_device_handle, char *, char *, int);
81 Static char *usbd_get_string(usbd_device_handle, int, char *);
82 Static int usbd_getnewaddr(usbd_bus_handle bus);
83 #if defined(__NetBSD__)
84 Static int usbd_print(void *aux, const char *pnp);
85 Static int usbd_submatch(device_ptr_t, struct cfdata *cf, void *);
86 #elif defined(__OpenBSD__)
87 Static int usbd_print(void *aux, const char *pnp);
88 Static int usbd_submatch(device_ptr_t, void *, void *);
90 Static void usbd_free_iface_data(usbd_device_handle dev, int ifcno);
91 Static void usbd_kill_pipe(usbd_pipe_handle);
92 Static usbd_status usbd_probe_and_attach(device_ptr_t parent,
93 usbd_device_handle dev, int port, int addr);
95 Static u_int32_t usb_cookie_no = 0;
98 typedef u_int16_t usb_vendor_id_t;
99 typedef u_int16_t usb_product_id_t;
102 * Descriptions of of known vendors and devices ("products").
104 struct usb_knowndev {
105 usb_vendor_id_t vendor;
106 usb_product_id_t product;
108 char *vendorname, *productname;
110 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
112 #include "usbdevs_data.h"
113 #endif /* USBVERBOSE */
115 Static const char * const usbd_error_strs[] = {
139 usbd_errstr(usbd_status err)
141 static char buffer[5];
143 if (err < USBD_ERROR_MAX) {
144 return usbd_error_strs[err];
146 snprintf(buffer, sizeof buffer, "%d", err);
152 usbd_get_string_desc(usbd_device_handle dev, int sindex, int langid,
153 usb_string_descriptor_t *sdesc)
155 usb_device_request_t req;
159 req.bmRequestType = UT_READ_DEVICE;
160 req.bRequest = UR_GET_DESCRIPTOR;
161 USETW2(req.wValue, UDESC_STRING, sindex);
162 USETW(req.wIndex, langid);
163 USETW(req.wLength, 2); /* only size byte first */
164 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK,
165 &actlen, USBD_DEFAULT_TIMEOUT);
170 return (USBD_SHORT_XFER);
172 USETW(req.wLength, sdesc->bLength); /* the whole string */
173 return (usbd_do_request(dev, &req, sdesc));
177 usbd_get_string(usbd_device_handle dev, int si, char *buf)
179 int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE;
180 usb_string_descriptor_t us;
188 if (dev->quirks->uq_flags & UQ_NO_STRINGS)
190 if (dev->langid == USBD_NOLANG) {
191 /* Set up default language */
192 err = usbd_get_string_desc(dev, USB_LANGUAGE_TABLE, 0, &us);
193 if (err || us.bLength < 4) {
194 dev->langid = 0; /* Well, just pick something then */
196 /* Pick the first language as the default. */
197 dev->langid = UGETW(us.bString[0]);
200 err = usbd_get_string_desc(dev, si, dev->langid, &us);
204 n = us.bLength / 2 - 1;
205 for (i = 0; i < n; i++) {
206 c = UGETW(us.bString[i]);
207 /* Convert from Unicode, handle buggy strings. */
208 if ((c & 0xff00) == 0)
210 else if ((c & 0x00ff) == 0 && swap)
220 usbd_trim_spaces(char *p)
227 while (*q == ' ') /* skip leading spaces */
229 while ((*p = *q++)) /* copy string */
230 if (*p++ != ' ') /* remember last non-space */
232 *e = 0; /* kill trailing spaces */
236 usbd_devinfo_vp(usbd_device_handle dev, char *v, char *p, int usedev)
238 usb_device_descriptor_t *udd = &dev->ddesc;
239 char *vendor = 0, *product = 0;
241 const struct usb_knowndev *kdp;
250 vendor = usbd_get_string(dev, udd->iManufacturer, v);
251 usbd_trim_spaces(vendor);
252 product = usbd_get_string(dev, udd->iProduct, p);
253 usbd_trim_spaces(product);
259 if (vendor == NULL || product == NULL) {
260 for(kdp = usb_knowndevs;
261 kdp->vendorname != NULL;
263 if (kdp->vendor == UGETW(udd->idVendor) &&
264 (kdp->product == UGETW(udd->idProduct) ||
265 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0))
268 if (kdp->vendorname != NULL) {
270 vendor = kdp->vendorname;
272 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ?
273 kdp->productname : NULL;
277 if (vendor != NULL && *vendor)
280 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor));
281 if (product != NULL && *product)
284 sprintf(p, "product 0x%04x", UGETW(udd->idProduct));
288 usbd_printBCD(char *cp, int bcd)
290 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff));
294 usbd_devinfo(usbd_device_handle dev, int showclass, char *cp)
296 usb_device_descriptor_t *udd = &dev->ddesc;
297 char vendor[USB_MAX_STRING_LEN];
298 char product[USB_MAX_STRING_LEN];
299 int bcdDevice, bcdUSB;
301 usbd_devinfo_vp(dev, vendor, product, 1);
302 cp += sprintf(cp, "%s %s", vendor, product);
304 cp += sprintf(cp, ", class %d/%d",
305 udd->bDeviceClass, udd->bDeviceSubClass);
306 bcdUSB = UGETW(udd->bcdUSB);
307 bcdDevice = UGETW(udd->bcdDevice);
308 cp += sprintf(cp, ", rev ");
309 cp += usbd_printBCD(cp, bcdUSB);
311 cp += usbd_printBCD(cp, bcdDevice);
312 cp += sprintf(cp, ", addr %d", dev->address);
316 /* Delay for a certain number of ms */
318 usb_delay_ms(usbd_bus_handle bus, u_int ms)
320 /* Wait at least two clock ticks so we know the time has passed. */
321 if (bus->use_polling || cold)
322 delay((ms+1) * 1000);
324 tsleep(&ms, 0, "usbdly", (ms*hz+999)/1000 + 1);
327 /* Delay given a device handle. */
329 usbd_delay_ms(usbd_device_handle dev, u_int ms)
331 usb_delay_ms(dev->bus, ms);
335 usbd_reset_port(usbd_device_handle dev, int port, usb_port_status_t *ps)
337 usb_device_request_t req;
341 req.bmRequestType = UT_WRITE_CLASS_OTHER;
342 req.bRequest = UR_SET_FEATURE;
343 USETW(req.wValue, UHF_PORT_RESET);
344 USETW(req.wIndex, port);
345 USETW(req.wLength, 0);
346 err = usbd_do_request(dev, &req, 0);
347 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%s\n",
348 port, usbd_errstr(err)));
353 /* Wait for device to recover from reset. */
354 usbd_delay_ms(dev, USB_PORT_RESET_DELAY);
355 err = usbd_get_port_status(dev, port, ps);
357 DPRINTF(("usbd_reset_port: get status failed %d\n",
361 /* If the device disappeared, just give up. */
362 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS))
363 return (USBD_NORMAL_COMPLETION);
364 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0);
366 return (USBD_TIMEOUT);
367 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET);
370 DPRINTF(("usbd_reset_port: clear port feature failed %d\n",
374 /* Wait for the device to recover from reset. */
375 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY);
379 usb_interface_descriptor_t *
380 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx)
382 char *p = (char *)cd;
383 char *end = p + UGETW(cd->wTotalLength);
384 usb_interface_descriptor_t *d;
385 int curidx, lastidx, curaidx = 0;
387 for (curidx = lastidx = -1; p < end; ) {
388 d = (usb_interface_descriptor_t *)p;
389 DPRINTFN(4,("usbd_find_idesc: idx=%d(%d) altidx=%d(%d) len=%d "
391 ifaceidx, curidx, altidx, curaidx,
392 d->bLength, d->bDescriptorType));
393 if (d->bLength == 0) /* bad descriptor */
396 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) {
397 if (d->bInterfaceNumber != lastidx) {
398 lastidx = d->bInterfaceNumber;
403 if (ifaceidx == curidx && altidx == curaidx)
410 usb_endpoint_descriptor_t *
411 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx,
414 char *p = (char *)cd;
415 char *end = p + UGETW(cd->wTotalLength);
416 usb_interface_descriptor_t *d;
417 usb_endpoint_descriptor_t *e;
420 d = usbd_find_idesc(cd, ifaceidx, altidx);
423 if (endptidx >= d->bNumEndpoints) /* quick exit */
427 for (p = (char *)d + d->bLength; p < end; ) {
428 e = (usb_endpoint_descriptor_t *)p;
429 if (e->bLength == 0) /* bad descriptor */
432 if (p <= end && e->bDescriptorType == UDESC_INTERFACE)
434 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) {
436 if (curidx == endptidx)
444 usbd_fill_iface_data(usbd_device_handle dev, int ifaceidx, int altidx)
446 usbd_interface_handle ifc = &dev->ifaces[ifaceidx];
447 usb_interface_descriptor_t *idesc;
451 DPRINTFN(4,("usbd_fill_iface_data: ifaceidx=%d altidx=%d\n",
453 idesc = usbd_find_idesc(dev->cdesc, ifaceidx, altidx);
458 ifc->index = ifaceidx;
459 ifc->altindex = altidx;
460 nendpt = ifc->idesc->bNumEndpoints;
461 DPRINTFN(4,("usbd_fill_iface_data: found idesc nendpt=%d\n", nendpt));
463 ifc->endpoints = kmalloc(nendpt * sizeof(struct usbd_endpoint),
466 ifc->endpoints = NULL;
469 p = (char *)ifc->idesc + ifc->idesc->bLength;
470 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength);
471 #define ed ((usb_endpoint_descriptor_t *)p)
472 for (endpt = 0; endpt < nendpt; endpt++) {
473 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt));
474 for (; p < end; p += ed->bLength) {
475 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p "
477 p, end, ed->bLength, ed->bDescriptorType));
478 if (p + ed->bLength <= end && ed->bLength != 0 &&
479 ed->bDescriptorType == UDESC_ENDPOINT)
481 if (ed->bLength == 0 ||
482 ed->bDescriptorType == UDESC_INTERFACE)
485 /* passed end, or bad desc */
486 printf("usbd_fill_iface_data: bad descriptor(s): %s\n",
487 ed->bLength == 0 ? "0 length" :
488 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc":
492 ifc->endpoints[endpt].edesc = ed;
493 if (dev->speed == USB_SPEED_HIGH) {
495 /* Control and bulk endpoints have max packet limits. */
496 switch (UE_GET_XFERTYPE(ed->bmAttributes)) {
498 mps = USB_2_MAX_CTRL_PACKET;
501 mps = USB_2_MAX_BULK_PACKET;
503 if (UGETW(ed->wMaxPacketSize) != mps) {
504 USETW(ed->wMaxPacketSize, mps);
506 printf("usbd_fill_iface_data: bad max "
515 ifc->endpoints[endpt].refcnt = 0;
519 LIST_INIT(&ifc->pipes);
520 return (USBD_NORMAL_COMPLETION);
523 if (ifc->endpoints != NULL) {
524 kfree(ifc->endpoints, M_USB);
525 ifc->endpoints = NULL;
531 usbd_free_iface_data(usbd_device_handle dev, int ifcno)
533 usbd_interface_handle ifc = &dev->ifaces[ifcno];
535 kfree(ifc->endpoints, M_USB);
539 usbd_set_config(usbd_device_handle dev, int conf)
541 usb_device_request_t req;
543 req.bmRequestType = UT_WRITE_DEVICE;
544 req.bRequest = UR_SET_CONFIG;
545 USETW(req.wValue, conf);
546 USETW(req.wIndex, 0);
547 USETW(req.wLength, 0);
548 return (usbd_do_request(dev, &req, 0));
552 usbd_set_config_no(usbd_device_handle dev, int no, int msg)
555 usb_config_descriptor_t cd;
558 if (no == USB_UNCONFIG_NO)
559 return (usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg));
561 DPRINTFN(5,("usbd_set_config_no: %d\n", no));
562 /* Figure out what config index to use. */
563 for (index = 0; index < dev->ddesc.bNumConfigurations; index++) {
564 err = usbd_get_config_desc(dev, index, &cd);
567 if (cd.bConfigurationValue == no)
568 return (usbd_set_config_index(dev, index, msg));
574 usbd_set_config_index(usbd_device_handle dev, int index, int msg)
577 usb_config_descriptor_t cd, *cdp;
579 int ifcidx, nifc, len, selfpowered, power;
581 DPRINTFN(5,("usbd_set_config_index: dev=%p index=%d\n", dev, index));
583 /* XXX check that all interfaces are idle */
584 if (dev->config != USB_UNCONFIG_NO) {
585 DPRINTF(("usbd_set_config_index: free old config\n"));
586 /* Free all configuration data structures. */
587 nifc = dev->cdesc->bNumInterface;
588 for (ifcidx = 0; ifcidx < nifc; ifcidx++)
589 usbd_free_iface_data(dev, ifcidx);
590 kfree(dev->ifaces, M_USB);
591 kfree(dev->cdesc, M_USB);
594 dev->config = USB_UNCONFIG_NO;
597 if (index == USB_UNCONFIG_INDEX) {
598 /* We are unconfiguring the device, so leave unallocated. */
599 DPRINTF(("usbd_set_config_index: set config 0\n"));
600 err = usbd_set_config(dev, USB_UNCONFIG_NO);
602 DPRINTF(("usbd_set_config_index: setting config=0 "
603 "failed, error=%s\n", usbd_errstr(err)));
607 /* Get the short descriptor. */
608 err = usbd_get_config_desc(dev, index, &cd);
611 len = UGETW(cd.wTotalLength);
612 cdp = kmalloc(len, M_USB, M_INTWAIT);
613 /* Get the full descriptor. */
614 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp);
617 if (cdp->bDescriptorType != UDESC_CONFIG) {
618 DPRINTFN(-1,("usbd_set_config_index: bad desc %d\n",
619 cdp->bDescriptorType));
624 /* Figure out if the device is self or bus powered. */
626 if (!(dev->quirks->uq_flags & UQ_BUS_POWERED) &&
627 (cdp->bmAttributes & UC_SELF_POWERED)) {
628 /* May be self powered. */
629 if (cdp->bmAttributes & UC_BUS_POWERED) {
630 /* Must ask device. */
631 if (dev->quirks->uq_flags & UQ_POWER_CLAIM) {
633 * Hub claims to be self powered, but isn't.
634 * It seems that the power status can be
635 * determined by the hub characteristics.
637 usb_hub_descriptor_t hd;
638 usb_device_request_t req;
639 req.bmRequestType = UT_READ_CLASS_DEVICE;
640 req.bRequest = UR_GET_DESCRIPTOR;
641 USETW(req.wValue, 0);
642 USETW(req.wIndex, 0);
643 USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE);
644 err = usbd_do_request(dev, &req, &hd);
646 (UGETW(hd.wHubCharacteristics) &
649 DPRINTF(("usbd_set_config_index: charac=0x%04x"
651 UGETW(hd.wHubCharacteristics),
654 err = usbd_get_device_status(dev, &ds);
656 (UGETW(ds.wStatus) & UDS_SELF_POWERED))
658 DPRINTF(("usbd_set_config_index: status=0x%04x"
660 UGETW(ds.wStatus), usbd_errstr(err)));
665 DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, "
666 "selfpowered=%d, power=%d\n",
667 cdp->bConfigurationValue, dev->address, cdp->bmAttributes,
668 selfpowered, cdp->bMaxPower * 2));
670 /* Check if we have enough power. */
672 if (dev->powersrc == NULL) {
673 DPRINTF(("usbd_set_config_index: No power source?\n"));
674 return (USBD_IOERROR);
677 power = cdp->bMaxPower * 2;
678 if (power > dev->powersrc->power) {
679 DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power));
680 /* XXX print nicer message. */
682 printf("%s: device addr %d (config %d) exceeds power "
683 "budget, %d mA > %d mA\n",
684 USBDEVNAME(dev->bus->bdev), dev->address,
685 cdp->bConfigurationValue,
686 power, dev->powersrc->power);
691 dev->self_powered = selfpowered;
693 /* Set the actual configuration value. */
694 DPRINTF(("usbd_set_config_index: set config %d\n",
695 cdp->bConfigurationValue));
696 err = usbd_set_config(dev, cdp->bConfigurationValue);
698 DPRINTF(("usbd_set_config_index: setting config=%d failed, "
700 cdp->bConfigurationValue, usbd_errstr(err)));
704 /* Allocate and fill interface data. */
705 nifc = cdp->bNumInterface;
706 dev->ifaces = kmalloc(nifc * sizeof(struct usbd_interface),
708 DPRINTFN(5,("usbd_set_config_index: dev=%p cdesc=%p\n", dev, cdp));
710 dev->config = cdp->bConfigurationValue;
711 for (ifcidx = 0; ifcidx < nifc; ifcidx++) {
712 err = usbd_fill_iface_data(dev, ifcidx, 0);
714 while (--ifcidx >= 0)
715 usbd_free_iface_data(dev, ifcidx);
720 return (USBD_NORMAL_COMPLETION);
727 /* XXX add function for alternate settings */
730 usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface,
731 struct usbd_endpoint *ep, int ival, usbd_pipe_handle *pipe)
736 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n",
737 dev, iface, ep, pipe));
738 p = kmalloc(dev->bus->pipe_size, M_USB, M_INTWAIT);
749 SIMPLEQ_INIT(&p->queue);
750 err = dev->bus->methods->open_pipe(p);
752 DPRINTFN(-1,("usbd_setup_pipe: endpoint=0x%x failed, error="
754 ep->edesc->bEndpointAddress, usbd_errstr(err)));
758 /* Clear any stall and make sure DATA0 toggle will be used next. */
759 if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT)
760 usbd_clear_endpoint_stall(p);
762 return (USBD_NORMAL_COMPLETION);
765 /* Abort the device control pipe. */
767 usbd_kill_pipe(usbd_pipe_handle pipe)
769 usbd_abort_pipe(pipe);
770 pipe->methods->close(pipe);
771 pipe->endpoint->refcnt--;
776 usbd_getnewaddr(usbd_bus_handle bus)
780 for (addr = 1; addr < USB_MAX_DEVICES; addr++)
781 if (bus->devices[addr] == 0)
788 usbd_probe_and_attach(device_ptr_t parent, usbd_device_handle dev,
791 struct usb_attach_arg uaa;
792 usb_device_descriptor_t *dd = &dev->ddesc;
793 int found, i, confi, nifaces;
796 usbd_interface_handle ifaces[256]; /* 256 is the absolute max */
798 #if defined(__FreeBSD__) || defined(__DragonFly__)
800 * XXX uaa is a static var. Not a problem as it _should_ be used only
801 * during probe and attach. Should be changed however.
804 bdev = device_add_child(parent, NULL, -1);
806 printf("%s: Device creation failed\n", USBDEVNAME(dev->bus->bdev));
809 device_set_ivars(bdev, &uaa);
819 uaa.configno = UHUB_UNK_CONFIGURATION;
820 uaa.ifaceno = UHUB_UNK_INTERFACE;
821 uaa.vendor = UGETW(dd->idVendor);
822 uaa.product = UGETW(dd->idProduct);
823 uaa.release = UGETW(dd->bcdDevice);
825 /* First try with device specific drivers. */
826 DPRINTF(("usbd_probe_and_attach: trying device specific drivers\n"));
827 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch);
829 dev->subdevs = kmalloc(2 * sizeof dv, M_USB, M_INTWAIT);
830 dev->subdevs[0] = dv;
832 return (USBD_NORMAL_COMPLETION);
835 DPRINTF(("usbd_probe_and_attach: no device specific driver found\n"));
837 DPRINTF(("usbd_probe_and_attach: looping over %d configurations\n",
838 dd->bNumConfigurations));
839 /* Next try with interface drivers. */
840 for (confi = 0; confi < dd->bNumConfigurations; confi++) {
841 DPRINTFN(1,("usbd_probe_and_attach: trying config idx=%d\n",
843 err = usbd_set_config_index(dev, confi, 1);
846 DPRINTF(("%s: port %d, set config at addr %d failed, "
847 "error=%s\n", USBDEVPTRNAME(parent), port,
848 addr, usbd_errstr(err)));
850 printf("%s: port %d, set config at addr %d failed\n",
851 USBDEVPTRNAME(parent), port, addr);
853 #if defined(__FreeBSD__) || defined(__DragonFly__)
854 device_delete_child(parent, bdev);
859 nifaces = dev->cdesc->bNumInterface;
860 uaa.configno = dev->cdesc->bConfigurationValue;
861 for (i = 0; i < nifaces; i++)
862 ifaces[i] = &dev->ifaces[i];
864 uaa.nifaces = nifaces;
865 dev->subdevs = kmalloc((nifaces+1) * sizeof dv, M_USB, M_INTWAIT);
868 for (i = 0; i < nifaces; i++) {
869 if (ifaces[i] == NULL)
870 continue; /* interface already claimed */
871 uaa.iface = ifaces[i];
872 uaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber;
873 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print,
876 dev->subdevs[found++] = dv;
877 dev->subdevs[found] = 0;
878 ifaces[i] = 0; /* consumed */
880 #if defined(__FreeBSD__) || defined(__DragonFly__)
881 /* create another child for the next iface */
882 bdev = device_add_child(parent, NULL, -1);
884 printf("%s: Device creation failed\n",
885 USBDEVNAME(dev->bus->bdev));
886 return (USBD_NORMAL_COMPLETION);
888 device_set_ivars(bdev, &uaa);
894 #if defined(__FreeBSD__) || defined(__DragonFly__)
895 /* remove the last created child again; it is unused */
896 device_delete_child(parent, bdev);
898 return (USBD_NORMAL_COMPLETION);
900 kfree(dev->subdevs, M_USB);
903 /* No interfaces were attached in any of the configurations. */
905 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */
906 usbd_set_config_index(dev, 0, 0);
908 DPRINTF(("usbd_probe_and_attach: no interface drivers found\n"));
910 /* Finally try the generic driver. */
913 uaa.configno = UHUB_UNK_CONFIGURATION;
914 uaa.ifaceno = UHUB_UNK_INTERFACE;
915 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch);
917 dev->subdevs = kmalloc(2 * sizeof dv, M_USB, M_INTWAIT);
918 dev->subdevs[0] = dv;
920 return (USBD_NORMAL_COMPLETION);
924 * The generic attach failed, but leave the device as it is.
925 * We just did not find any drivers, that's all. The device is
926 * fully operational and not harming anyone.
928 DPRINTF(("usbd_probe_and_attach: generic attach failed\n"));
929 #if defined(__FreeBSD__) || defined(__DragonFly__)
930 device_delete_child(parent, bdev);
932 return (USBD_NORMAL_COMPLETION);
937 * Called when a new device has been put in the powered state,
938 * but not yet in the addressed state.
939 * Get initial descriptor, set the address, get full descriptor,
940 * and attach a driver.
943 usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth,
944 int speed, int port, struct usbd_port *up)
946 usbd_device_handle dev;
947 struct usbd_device *hub;
948 usb_device_descriptor_t *dd;
949 usb_port_status_t ps;
954 DPRINTF(("usbd_new_device bus=%p port=%d depth=%d speed=%d\n",
955 bus, port, depth, speed));
956 addr = usbd_getnewaddr(bus);
958 printf("%s: No free USB addresses, new device ignored.\n",
959 USBDEVNAME(bus->bdev));
960 return (USBD_NO_ADDR);
963 dev = kmalloc(sizeof *dev, M_USB, M_INTWAIT | M_ZERO);
966 /* Set up default endpoint handle. */
967 dev->def_ep.edesc = &dev->def_ep_desc;
969 /* Set up default endpoint descriptor. */
970 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE;
971 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT;
972 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT;
973 dev->def_ep_desc.bmAttributes = UE_CONTROL;
974 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET);
975 dev->def_ep_desc.bInterval = 0;
977 dev->quirks = &usbd_no_quirk;
978 dev->address = USB_START_ADDR;
979 dev->ddesc.bMaxPacketSize = 0;
982 dev->myhub = up->parent;
983 for (hub = up->parent;
984 hub != NULL && hub->speed != USB_SPEED_HIGH;
987 dev->myhighhub = hub;
989 dev->langid = USBD_NOLANG;
990 dev->cookie.cookie = ++usb_cookie_no;
992 /* Establish the default pipe. */
993 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL,
996 usbd_remove_device(dev, up);
1002 /* Set the address. Do this early; some devices need that. */
1003 err = usbd_set_address(dev, addr);
1004 DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr));
1006 DPRINTFN(-1,("usb_new_device: set address %d failed\n", addr));
1007 err = USBD_SET_ADDR_FAILED;
1008 usbd_remove_device(dev, up);
1011 /* Allow device time to set new address */
1012 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE);
1013 dev->address = addr; /* New device address now */
1014 bus->devices[addr] = dev;
1017 /* Try a few times in case the device is slow (i.e. outside specs.) */
1018 for (i = 0; i < 15; i++) {
1019 /* Get the first 8 bytes of the device descriptor. */
1020 err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd);
1023 usbd_delay_ms(dev, 200);
1025 usbd_reset_port(up->parent, port, &ps);
1028 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc "
1030 usbd_remove_device(dev, up);
1034 if (speed == USB_SPEED_HIGH) {
1035 /* Max packet size must be 64 (sec 5.5.3). */
1036 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) {
1038 printf("usbd_new_device: addr=%d bad max packet size\n",
1041 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET;
1045 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, "
1046 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, speed=%d\n",
1047 addr,UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass,
1048 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength,
1051 if (dd->bDescriptorType != UDESC_DEVICE) {
1052 /* Illegal device descriptor */
1053 DPRINTFN(-1,("usbd_new_device: illegal descriptor %d\n",
1054 dd->bDescriptorType));
1055 usbd_remove_device(dev, up);
1056 return (USBD_INVAL);
1059 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) {
1060 DPRINTFN(-1,("usbd_new_device: bad length %d\n", dd->bLength));
1061 usbd_remove_device(dev, up);
1062 return (USBD_INVAL);
1065 USETW(dev->def_ep_desc.wMaxPacketSize, dd->bMaxPacketSize);
1067 err = usbd_reload_device_desc(dev);
1069 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc "
1071 usbd_remove_device(dev, up);
1075 /* Assume 100mA bus powered for now. Changed when configured. */
1076 dev->power = USB_MIN_POWER;
1077 dev->self_powered = 0;
1079 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n",
1080 addr, dev, parent));
1082 err = usbd_probe_and_attach(parent, dev, port, addr);
1084 usbd_remove_device(dev, up);
1088 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev);
1090 return (USBD_NORMAL_COMPLETION);
1094 usbd_reload_device_desc(usbd_device_handle dev)
1096 usbd_status err = 0;
1099 /* Get the full device descriptor. */
1100 for (i = 0; i < 3; ++i) {
1101 err = usbd_get_device_desc(dev, &dev->ddesc);
1104 usbd_delay_ms(dev, 200);
1109 /* Figure out what's wrong with this device. */
1110 dev->quirks = usbd_find_quirk(&dev->ddesc);
1112 return (USBD_NORMAL_COMPLETION);
1116 usbd_remove_device(usbd_device_handle dev, struct usbd_port *up)
1118 DPRINTF(("usbd_remove_device: %p\n", dev));
1120 if (dev->default_pipe != NULL)
1121 usbd_kill_pipe(dev->default_pipe);
1123 dev->bus->devices[dev->address] = 0;
1128 #if defined(__NetBSD__) || defined(__OpenBSD__)
1130 usbd_print(void *aux, const char *pnp)
1132 struct usb_attach_arg *uaa = aux;
1135 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device));
1137 if (!uaa->usegeneric)
1139 usbd_devinfo(uaa->device, 1, devinfo);
1140 printf("%s, %s", devinfo, pnp);
1143 printf(" port %d", uaa->port);
1144 if (uaa->configno != UHUB_UNK_CONFIGURATION)
1145 printf(" configuration %d", uaa->configno);
1146 if (uaa->ifaceno != UHUB_UNK_INTERFACE)
1147 printf(" interface %d", uaa->ifaceno);
1150 * It gets very crowded with these locators on the attach line.
1151 * They are not really needed since they are printed in the clear
1154 if (uaa->vendor != UHUB_UNK_VENDOR)
1155 printf(" vendor 0x%04x", uaa->vendor);
1156 if (uaa->product != UHUB_UNK_PRODUCT)
1157 printf(" product 0x%04x", uaa->product);
1158 if (uaa->release != UHUB_UNK_RELEASE)
1159 printf(" release 0x%04x", uaa->release);
1164 #if defined(__NetBSD__)
1166 usbd_submatch(struct device *parent, struct cfdata *cf, void *aux)
1168 #elif defined(__OpenBSD__)
1170 usbd_submatch(struct device *parent, void *match, void *aux)
1172 struct cfdata *cf = match;
1174 struct usb_attach_arg *uaa = aux;
1176 DPRINTFN(5,("usbd_submatch port=%d,%d configno=%d,%d "
1177 "ifaceno=%d,%d vendor=%d,%d product=%d,%d release=%d,%d\n",
1178 uaa->port, cf->uhubcf_port,
1179 uaa->configno, cf->uhubcf_configuration,
1180 uaa->ifaceno, cf->uhubcf_interface,
1181 uaa->vendor, cf->uhubcf_vendor,
1182 uaa->product, cf->uhubcf_product,
1183 uaa->release, cf->uhubcf_release));
1184 if (uaa->port != 0 && /* root hub has port 0, it should match */
1186 cf->uhubcf_port != UHUB_UNK_PORT &&
1187 cf->uhubcf_port != uaa->port) ||
1188 (uaa->configno != UHUB_UNK_CONFIGURATION &&
1189 cf->uhubcf_configuration != UHUB_UNK_CONFIGURATION &&
1190 cf->uhubcf_configuration != uaa->configno) ||
1191 (uaa->ifaceno != UHUB_UNK_INTERFACE &&
1192 cf->uhubcf_interface != UHUB_UNK_INTERFACE &&
1193 cf->uhubcf_interface != uaa->ifaceno) ||
1194 (uaa->vendor != UHUB_UNK_VENDOR &&
1195 cf->uhubcf_vendor != UHUB_UNK_VENDOR &&
1196 cf->uhubcf_vendor != uaa->vendor) ||
1197 (uaa->product != UHUB_UNK_PRODUCT &&
1198 cf->uhubcf_product != UHUB_UNK_PRODUCT &&
1199 cf->uhubcf_product != uaa->product) ||
1200 (uaa->release != UHUB_UNK_RELEASE &&
1201 cf->uhubcf_release != UHUB_UNK_RELEASE &&
1202 cf->uhubcf_release != uaa->release)
1206 if (cf->uhubcf_vendor != UHUB_UNK_VENDOR &&
1207 cf->uhubcf_vendor == uaa->vendor &&
1208 cf->uhubcf_product != UHUB_UNK_PRODUCT &&
1209 cf->uhubcf_product == uaa->product) {
1210 /* We have a vendor&product locator match */
1211 if (cf->uhubcf_release != UHUB_UNK_RELEASE &&
1212 cf->uhubcf_release == uaa->release)
1213 uaa->matchlvl = UMATCH_VENDOR_PRODUCT_REV;
1215 uaa->matchlvl = UMATCH_VENDOR_PRODUCT;
1218 return ((*cf->cf_attach->ca_match)(parent, cf, aux));
1224 usbd_fill_deviceinfo(usbd_device_handle dev, struct usb_device_info *di,
1227 struct usbd_port *p;
1230 di->udi_bus = USBDEVUNIT(dev->bus->bdev);
1231 di->udi_addr = dev->address;
1232 di->udi_cookie = dev->cookie;
1233 usbd_devinfo_vp(dev, di->udi_vendor, di->udi_product, usedev);
1234 usbd_printBCD(di->udi_release, UGETW(dev->ddesc.bcdDevice));
1235 di->udi_vendorNo = UGETW(dev->ddesc.idVendor);
1236 di->udi_productNo = UGETW(dev->ddesc.idProduct);
1237 di->udi_releaseNo = UGETW(dev->ddesc.bcdDevice);
1238 di->udi_class = dev->ddesc.bDeviceClass;
1239 di->udi_subclass = dev->ddesc.bDeviceSubClass;
1240 di->udi_protocol = dev->ddesc.bDeviceProtocol;
1241 di->udi_config = dev->config;
1242 di->udi_power = dev->self_powered ? 0 : dev->power;
1243 di->udi_speed = dev->speed;
1245 if (dev->subdevs != NULL) {
1246 for (i = 0; dev->subdevs[i] &&
1247 i < USB_MAX_DEVNAMES; i++) {
1248 strncpy(di->udi_devnames[i], USBDEVPTRNAME(dev->subdevs[i]),
1249 USB_MAX_DEVNAMELEN);
1250 di->udi_devnames[i][USB_MAX_DEVNAMELEN-1] = '\0';
1255 for (/*i is set */; i < USB_MAX_DEVNAMES; i++)
1256 di->udi_devnames[i][0] = 0; /* empty */
1260 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) &&
1261 i < dev->hub->hubdesc.bNbrPorts;
1263 p = &dev->hub->ports[i];
1265 err = p->device->address;
1267 s = UGETW(p->status.wPortStatus);
1268 if (s & UPS_PORT_ENABLED)
1269 err = USB_PORT_ENABLED;
1270 else if (s & UPS_SUSPEND)
1271 err = USB_PORT_SUSPENDED;
1272 else if (s & UPS_PORT_POWER)
1273 err = USB_PORT_POWERED;
1275 err = USB_PORT_DISABLED;
1277 di->udi_ports[i] = err;
1279 di->udi_nports = dev->hub->hubdesc.bNbrPorts;
1285 usb_free_device(usbd_device_handle dev)
1289 if (dev->default_pipe != NULL)
1290 usbd_kill_pipe(dev->default_pipe);
1291 if (dev->ifaces != NULL) {
1292 nifc = dev->cdesc->bNumInterface;
1293 for (ifcidx = 0; ifcidx < nifc; ifcidx++)
1294 usbd_free_iface_data(dev, ifcidx);
1295 kfree(dev->ifaces, M_USB);
1297 if (dev->cdesc != NULL)
1298 kfree(dev->cdesc, M_USB);
1299 if (dev->subdevs != NULL)
1300 kfree(dev->subdevs, M_USB);
1305 * The general mechanism for detaching drivers works as follows: Each
1306 * driver is responsible for maintaining a reference count on the
1307 * number of outstanding references to its softc (e.g. from
1308 * processing hanging in a read or write). The detach method of the
1309 * driver decrements this counter and flags in the softc that the
1310 * driver is dying and then wakes any sleepers. It then sleeps on the
1311 * softc. Each place that can sleep must maintain the reference
1312 * count. When the reference count drops to -1 (0 is the normal value
1313 * of the reference count) the a wakeup on the softc is performed
1314 * signaling to the detach waiter that all references are gone.
1318 * Called from process context when we discover that a port has
1319 * been disconnected.
1322 usb_disconnect_port(struct usbd_port *up, device_ptr_t parent)
1324 usbd_device_handle dev = up->device;
1325 const char *hubname = USBDEVPTRNAME(parent);
1328 DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n",
1329 up, dev, up->portno));
1333 printf("usb_disconnect_port: no device\n");
1338 if (dev->subdevs != NULL) {
1339 DPRINTFN(3,("usb_disconnect_port: disconnect subdevs\n"));
1340 for (i = 0; dev->subdevs[i]; i++) {
1341 printf("%s: at %s", USBDEVPTRNAME(dev->subdevs[i]),
1343 if (up->portno != 0)
1344 printf(" port %d", up->portno);
1345 printf(" (addr %d) disconnected\n", dev->address);
1346 config_detach(dev->subdevs[i], DETACH_FORCE);
1347 dev->subdevs[i] = NULL;
1351 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev);
1352 dev->bus->devices[dev->address] = NULL;
1354 usb_free_device(dev);
1359 usb_realloc(void *p, u_int size, int pool, int flags)
1363 q = kmalloc(size, pool, flags);