Nuke USBDEV().
[dragonfly.git] / sys / bus / usb / uhub.c
1 /*      $NetBSD: uhub.c,v 1.68 2004/06/29 06:30:05 mycroft Exp $        */
2 /*      $FreeBSD: src/sys/dev/usb/uhub.c,v 1.69.2.1 2005/12/18 15:51:31 iedowse Exp $   */
3 /*      $DragonFly: src/sys/bus/usb/uhub.c,v 1.13 2007/06/26 19:52:10 hasso Exp $       */
4
5 /*
6  * Copyright (c) 1998 The NetBSD Foundation, Inc.
7  * All rights reserved.
8  *
9  * This code is derived from software contributed to The NetBSD Foundation
10  * by Lennart Augustsson (lennart@augustsson.net) at
11  * Carlstedt Research & Technology.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. All advertising materials mentioning features or use of this software
22  *    must display the following acknowledgement:
23  *        This product includes software developed by the NetBSD
24  *        Foundation, Inc. and its contributors.
25  * 4. Neither the name of The NetBSD Foundation nor the names of its
26  *    contributors may be used to endorse or promote products derived
27  *    from this software without specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39  * POSSIBILITY OF SUCH DAMAGE.
40  */
41
42 /*
43  * USB spec: http://www.usb.org/developers/docs/usbspec.zip
44  */
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/malloc.h>
50 #if defined(__NetBSD__) || defined(__OpenBSD__)
51 #include <sys/device.h>
52 #include <sys/proc.h>
53 #elif defined(__FreeBSD__) || defined(__DragonFly__)
54 #include <sys/module.h>
55 #include <sys/bus.h>
56 #include <sys/lock.h>
57 #ifdef __FreeBSD__
58 #include <sys/mutex.h>
59 #else
60 #include <sys/thread2.h>
61 #endif
62 #endif
63 #include <sys/sysctl.h>
64
65 #include <bus/usb/usb.h>
66 #include <bus/usb/usbdi.h>
67 #include <bus/usb/usbdi_util.h>
68 #include <bus/usb/usbdivar.h>
69
70 #define UHUB_INTR_INTERVAL 255  /* ms */
71
72 #ifdef USB_DEBUG
73 #define DPRINTF(x)      if (uhubdebug) logprintf x
74 #define DPRINTFN(n,x)   if (uhubdebug>(n)) logprintf x
75 int     uhubdebug = 0;
76 SYSCTL_NODE(_hw_usb, OID_AUTO, uhub, CTLFLAG_RW, 0, "USB uhub");
77 SYSCTL_INT(_hw_usb_uhub, OID_AUTO, debug, CTLFLAG_RW,
78            &uhubdebug, 0, "uhub debug level");
79 #else
80 #define DPRINTF(x)
81 #define DPRINTFN(n,x)
82 #endif
83
84 struct uhub_softc {
85         USBBASEDEVICE           sc_dev;         /* base device */
86         usbd_device_handle      sc_hub;         /* USB device */
87         usbd_pipe_handle        sc_ipipe;       /* interrupt pipe */
88         u_int8_t                sc_status[1];   /* XXX more ports */
89         u_char                  sc_running;
90 };
91 #define UHUB_PROTO(sc) ((sc)->sc_hub->ddesc.bDeviceProtocol)
92 #define UHUB_IS_HIGH_SPEED(sc) (UHUB_PROTO(sc) != UDPROTO_FSHUB)
93 #define UHUB_IS_SINGLE_TT(sc) (UHUB_PROTO(sc) == UDPROTO_HSHUBSTT)
94
95 Static usbd_status uhub_explore(usbd_device_handle hub);
96 Static void uhub_intr(usbd_xfer_handle, usbd_private_handle,usbd_status);
97
98 #if defined(__FreeBSD__) || defined(__DragonFly__)
99 Static bus_child_detached_t uhub_child_detached;
100 Static bus_child_location_str_t uhub_child_location_str;
101 Static bus_child_pnpinfo_str_t uhub_child_pnpinfo_str;
102 #endif
103
104
105 /*
106  * We need two attachment points:
107  * hub to usb and hub to hub
108  * Every other driver only connects to hubs
109  */
110
111 #if defined(__NetBSD__) || defined(__OpenBSD__)
112 USB_DECLARE_DRIVER(uhub);
113
114 /* Create the driver instance for the hub connected to hub case */
115 CFATTACH_DECL(uhub_uhub, sizeof(struct uhub_softc),
116     uhub_match, uhub_attach, uhub_detach, uhub_activate);
117 #elif defined(__FreeBSD__) || defined(__DragonFly__)
118 USB_DECLARE_DRIVER_INIT(uhub,
119         DEVMETHOD(bus_child_detached, uhub_child_detached),
120         DEVMETHOD(bus_child_pnpinfo_str, uhub_child_pnpinfo_str),
121         DEVMETHOD(bus_child_location_str, uhub_child_location_str),
122         DEVMETHOD(bus_driver_added, bus_generic_driver_added),
123         DEVMETHOD(device_suspend, bus_generic_suspend),
124         DEVMETHOD(device_resume, bus_generic_resume),
125         DEVMETHOD(device_shutdown, bus_generic_shutdown)
126         );
127
128 /* Create the driver instance for the hub connected to usb case. */
129 devclass_t uhubroot_devclass;
130
131 Static device_method_t uhubroot_methods[] = {
132         DEVMETHOD(bus_child_detached, uhub_child_detached),
133         DEVMETHOD(bus_child_location_str, uhub_child_location_str),
134         DEVMETHOD(bus_child_pnpinfo_str, uhub_child_pnpinfo_str),
135         DEVMETHOD(bus_driver_added, bus_generic_driver_added),
136
137         DEVMETHOD(device_probe, uhub_match),
138         DEVMETHOD(device_attach, uhub_attach),
139         DEVMETHOD(device_detach, uhub_detach),
140         DEVMETHOD(device_suspend, bus_generic_suspend),
141         DEVMETHOD(device_resume, bus_generic_resume),
142         DEVMETHOD(device_shutdown, bus_generic_shutdown),
143         {0,0}
144 };
145
146 Static  driver_t uhubroot_driver = {
147         "uhub",
148         uhubroot_methods,
149         sizeof(struct uhub_softc)
150 };
151 #endif
152
153 USB_MATCH(uhub)
154 {
155         USB_MATCH_START(uhub, uaa);
156         usb_device_descriptor_t *dd = usbd_get_device_descriptor(uaa->device);
157
158         DPRINTFN(5,("uhub_match, dd=%p\n", dd));
159         /*
160          * The subclass for hubs seems to be 0 for some and 1 for others,
161          * so we just ignore the subclass.
162          */
163         if (uaa->iface == NULL && dd->bDeviceClass == UDCLASS_HUB)
164                 return (UMATCH_DEVCLASS_DEVSUBCLASS);
165         return (UMATCH_NONE);
166 }
167
168 USB_ATTACH(uhub)
169 {
170         USB_ATTACH_START(uhub, sc, uaa);
171         usbd_device_handle dev = uaa->device;
172         char *devinfo;
173         usbd_status err;
174         struct usbd_hub *hub = NULL;
175         usb_device_request_t req;
176         usb_hub_descriptor_t hubdesc;
177         int p, port, nports, nremov, pwrdly;
178         usbd_interface_handle iface;
179         usb_endpoint_descriptor_t *ed;
180         struct usbd_tt *tts = NULL;
181
182         devinfo = kmalloc(1024, M_TEMP, M_WAITOK);
183         DPRINTFN(1,("uhub_attach\n"));
184         sc->sc_hub = dev;
185         usbd_devinfo(dev, 1, devinfo);
186         USB_ATTACH_SETUP;
187
188         if (dev->depth > 0 && UHUB_IS_HIGH_SPEED(sc)) {
189                 kprintf("%s: %s transaction translator%s\n",
190                     USBDEVNAME(sc->sc_dev),
191                     UHUB_IS_SINGLE_TT(sc) ? "single" : "multiple",
192                     UHUB_IS_SINGLE_TT(sc) ? "" : "s");
193         }
194         err = usbd_set_config_index(dev, 0, 1);
195         if (err) {
196                 DPRINTF(("%s: configuration failed, error=%s\n",
197                          USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
198                 kfree(devinfo, M_TEMP);
199                 USB_ATTACH_ERROR_RETURN;
200         }
201
202         if (dev->depth > USB_HUB_MAX_DEPTH) {
203                 kprintf("%s: hub depth (%d) exceeded, hub ignored\n",
204                        USBDEVNAME(sc->sc_dev), USB_HUB_MAX_DEPTH);
205                 kfree(devinfo, M_TEMP);
206                 USB_ATTACH_ERROR_RETURN;
207         }
208
209         /* Get hub descriptor. */
210         req.bmRequestType = UT_READ_CLASS_DEVICE;
211         req.bRequest = UR_GET_DESCRIPTOR;
212         USETW2(req.wValue, (dev->address > 1 ? UDESC_HUB : 0), 0);
213         USETW(req.wIndex, 0);
214         USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE);
215         DPRINTFN(1,("usb_init_hub: getting hub descriptor\n"));
216         err = usbd_do_request(dev, &req, &hubdesc);
217         nports = hubdesc.bNbrPorts;
218         if (!err && nports > 7) {
219                 USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE + (nports+1) / 8);
220                 err = usbd_do_request(dev, &req, &hubdesc);
221         }
222         if (err) {
223                 DPRINTF(("%s: getting hub descriptor failed, error=%s\n",
224                          USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
225                 kfree(devinfo, M_TEMP);
226                 USB_ATTACH_ERROR_RETURN;
227         }
228
229         for (nremov = 0, port = 1; port <= nports; port++)
230                 if (!UHD_NOT_REMOV(&hubdesc, port))
231                         nremov++;
232         kprintf("%s: %d port%s with %d removable, %s powered\n",
233                USBDEVNAME(sc->sc_dev), nports, nports != 1 ? "s" : "",
234                nremov, dev->self_powered ? "self" : "bus");
235
236         if (nports == 0) {
237                 kprintf("%s: no ports, hub ignored\n", USBDEVNAME(sc->sc_dev));
238                 goto bad;
239         }
240
241         hub = kmalloc(sizeof(*hub) + (nports-1) * sizeof(struct usbd_port),
242                      M_USBDEV, M_WAITOK);
243         dev->hub = hub;
244         dev->hub->hubsoftc = sc;
245         hub->explore = uhub_explore;
246         hub->hubdesc = hubdesc;
247
248         DPRINTFN(1,("usbhub_init_hub: selfpowered=%d, parent=%p, "
249                     "parent->selfpowered=%d\n",
250                  dev->self_powered, dev->powersrc->parent,
251                  dev->powersrc->parent ?
252                  dev->powersrc->parent->self_powered : 0));
253
254         if (!dev->self_powered && dev->powersrc->parent != NULL &&
255             !dev->powersrc->parent->self_powered) {
256                 kprintf("%s: bus powered hub connected to bus powered hub, "
257                        "ignored\n", USBDEVNAME(sc->sc_dev));
258                 goto bad;
259         }
260
261         /* Set up interrupt pipe. */
262         err = usbd_device2interface_handle(dev, 0, &iface);
263         if (err) {
264                 kprintf("%s: no interface handle\n", USBDEVNAME(sc->sc_dev));
265                 goto bad;
266         }
267         ed = usbd_interface2endpoint_descriptor(iface, 0);
268         if (ed == NULL) {
269                 kprintf("%s: no endpoint descriptor\n", USBDEVNAME(sc->sc_dev));
270                 goto bad;
271         }
272         if ((ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
273                 kprintf("%s: bad interrupt endpoint\n", USBDEVNAME(sc->sc_dev));
274                 goto bad;
275         }
276
277         err = usbd_open_pipe_intr(iface, ed->bEndpointAddress,
278                   USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_status,
279                   sizeof(sc->sc_status), uhub_intr, UHUB_INTR_INTERVAL);
280         if (err) {
281                 kprintf("%s: cannot open interrupt pipe\n",
282                        USBDEVNAME(sc->sc_dev));
283                 goto bad;
284         }
285
286         /* Wait with power off for a while. */
287         usbd_delay_ms(dev, USB_POWER_DOWN_TIME);
288
289         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, dev, sc->sc_dev);
290
291         /*
292          * To have the best chance of success we do things in the exact same
293          * order as Windoze98.  This should not be necessary, but some
294          * devices do not follow the USB specs to the letter.
295          *
296          * These are the events on the bus when a hub is attached:
297          *  Get device and config descriptors (see attach code)
298          *  Get hub descriptor (see above)
299          *  For all ports
300          *     turn on power
301          *     wait for power to become stable
302          * (all below happens in explore code)
303          *  For all ports
304          *     clear C_PORT_CONNECTION
305          *  For all ports
306          *     get port status
307          *     if device connected
308          *        wait 100 ms
309          *        turn on reset
310          *        wait
311          *        clear C_PORT_RESET
312          *        get port status
313          *        proceed with device attachment
314          */
315
316         if (UHUB_IS_HIGH_SPEED(sc)) {
317                 tts = kmalloc((UHUB_IS_SINGLE_TT(sc) ? 1 : nports) *
318                               sizeof(struct usbd_tt), M_USBDEV, M_WAITOK);
319         }
320
321         /* Set up data structures */
322         for (p = 0; p < nports; p++) {
323                 struct usbd_port *up = &hub->ports[p];
324                 up->device = NULL;
325                 up->parent = dev;
326                 up->portno = p+1;
327                 if (dev->self_powered)
328                         /* Self powered hub, give ports maximum current. */
329                         up->power = USB_MAX_POWER;
330                 else
331                         up->power = USB_MIN_POWER;
332                 up->restartcnt = 0;
333                 if (UHUB_IS_HIGH_SPEED(sc)) {
334                         up->tt = &tts[UHUB_IS_SINGLE_TT(sc) ? 0 : p];
335                         up->tt->hub = hub;
336                 } else {
337                         up->tt = NULL;
338                 }
339         }
340
341         /* XXX should check for none, individual, or ganged power? */
342
343         pwrdly = dev->hub->hubdesc.bPwrOn2PwrGood * UHD_PWRON_FACTOR
344             + USB_EXTRA_POWER_UP_TIME;
345         for (port = 1; port <= nports; port++) {
346                 /* Turn the power on. */
347                 err = usbd_set_port_feature(dev, port, UHF_PORT_POWER);
348                 if (err)
349                         kprintf("%s: port %d power on failed, %s\n",
350                                USBDEVNAME(sc->sc_dev), port,
351                                usbd_errstr(err));
352                 DPRINTF(("usb_init_port: turn on port %d power\n", port));
353                 /* Wait for stable power. */
354                 usbd_delay_ms(dev, pwrdly);
355         }
356
357         /* The usual exploration will finish the setup. */
358
359         sc->sc_running = 1;
360
361         USB_ATTACH_SUCCESS_RETURN;
362
363  bad:
364         if (hub)
365                 kfree(hub, M_USBDEV);
366         kfree(devinfo, M_TEMP);
367         dev->hub = NULL;
368         USB_ATTACH_ERROR_RETURN;
369 }
370
371 usbd_status
372 uhub_explore(usbd_device_handle dev)
373 {
374         usb_hub_descriptor_t *hd = &dev->hub->hubdesc;
375         struct uhub_softc *sc = dev->hub->hubsoftc;
376         struct usbd_port *up;
377         usbd_status err;
378         int speed;
379         int port;
380         int change, status;
381
382         DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev, dev->address));
383
384         if (!sc->sc_running)
385                 return (USBD_NOT_STARTED);
386
387         /* Ignore hubs that are too deep. */
388         if (dev->depth > USB_HUB_MAX_DEPTH)
389                 return (USBD_TOO_DEEP);
390
391         for(port = 1; port <= hd->bNbrPorts; port++) {
392                 up = &dev->hub->ports[port-1];
393                 err = usbd_get_port_status(dev, port, &up->status);
394                 if (err) {
395                         DPRINTF(("uhub_explore: get port status failed, "
396                                  "error=%s\n", usbd_errstr(err)));
397                         continue;
398                 }
399                 status = UGETW(up->status.wPortStatus);
400                 change = UGETW(up->status.wPortChange);
401                 DPRINTFN(3,("uhub_explore: %s port %d status 0x%04x 0x%04x\n",
402                             USBDEVNAME(sc->sc_dev), port, status, change));
403                 if (change & UPS_C_PORT_ENABLED) {
404                         DPRINTF(("uhub_explore: C_PORT_ENABLED 0x%x\n", change));
405                         usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);
406                         if (change & UPS_C_CONNECT_STATUS) {
407                                 /* Ignore the port error if the device
408                                    vanished. */
409                         } else if (status & UPS_PORT_ENABLED) {
410                                 kprintf("%s: illegal enable change, port %d\n",
411                                        USBDEVNAME(sc->sc_dev), port);
412                         } else {
413                                 /* Port error condition. */
414                                 if (up->restartcnt) /* no message first time */
415                                         kprintf("%s: port error, restarting "
416                                                "port %d\n",
417                                                USBDEVNAME(sc->sc_dev), port);
418
419                                 if (up->restartcnt++ < USBD_RESTART_MAX)
420                                         goto disco;
421                                 else
422                                         kprintf("%s: port error, giving up "
423                                                "port %d\n",
424                                           USBDEVNAME(sc->sc_dev), port);
425                         }
426                 }
427                 if (!(change & UPS_C_CONNECT_STATUS)) {
428                         DPRINTFN(3,("uhub_explore: port=%d !C_CONNECT_"
429                                     "STATUS\n", port));
430                         /* No status change, just do recursive explore. */
431                         if (up->device != NULL && up->device->hub != NULL)
432                                 up->device->hub->explore(up->device);
433 #if 0 && defined(DIAGNOSTIC)
434                         if (up->device == NULL &&
435                             (status & UPS_CURRENT_CONNECT_STATUS))
436                                 kprintf("%s: connected, no device\n",
437                                        USBDEVNAME(sc->sc_dev));
438 #endif
439                         continue;
440                 }
441
442                 /* We have a connect status change, handle it. */
443
444                 DPRINTF(("uhub_explore: status change hub=%d port=%d\n",
445                          dev->address, port));
446                 usbd_clear_port_feature(dev, port, UHF_C_PORT_CONNECTION);
447                 /*usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);*/
448                 /*
449                  * If there is already a device on the port the change status
450                  * must mean that is has disconnected.  Looking at the
451                  * current connect status is not enough to figure this out
452                  * since a new unit may have been connected before we handle
453                  * the disconnect.
454                  */
455         disco:
456                 if (up->device != NULL) {
457                         /* Disconnected */
458                         DPRINTF(("uhub_explore: device addr=%d disappeared "
459                                  "on port %d\n", up->device->address, port));
460                         usb_disconnect_port(up, sc->sc_dev);
461                         usbd_clear_port_feature(dev, port,
462                                                 UHF_C_PORT_CONNECTION);
463                 }
464                 if (!(status & UPS_CURRENT_CONNECT_STATUS)) {
465                         /* Nothing connected, just ignore it. */
466                         DPRINTFN(3,("uhub_explore: port=%d !CURRENT_CONNECT"
467                                     "_STATUS\n", port));
468                         continue;
469                 }
470
471                 /* Connected */
472
473                 if (!(status & UPS_PORT_POWER))
474                         kprintf("%s: strange, connected port %d has no power\n",
475                                USBDEVNAME(sc->sc_dev), port);
476
477                 /* Wait for maximum device power up time. */
478                 usbd_delay_ms(dev, USB_PORT_POWERUP_DELAY);
479
480                 /* Reset port, which implies enabling it. */
481                 if (usbd_reset_port(dev, port, &up->status)) {
482                         kprintf("%s: port %d reset failed\n",
483                                USBDEVNAME(sc->sc_dev), port);
484                         continue;
485                 }
486                 /* Get port status again, it might have changed during reset */
487                 err = usbd_get_port_status(dev, port, &up->status);
488                 if (err) {
489                         DPRINTF(("uhub_explore: get port status failed, "
490                                  "error=%s\n", usbd_errstr(err)));
491                         continue;
492                 }
493                 status = UGETW(up->status.wPortStatus);
494                 change = UGETW(up->status.wPortChange);
495                 if (!(status & UPS_CURRENT_CONNECT_STATUS)) {
496                         /* Nothing connected, just ignore it. */
497 #ifdef DIAGNOSTIC
498                         kprintf("%s: port %d, device disappeared after reset\n",
499                                USBDEVNAME(sc->sc_dev), port);
500 #endif
501                         continue;
502                 }
503
504 #if 0
505                 if (UHUB_IS_HIGH_SPEED(sc) && !(status & UPS_HIGH_SPEED)) {
506                         kprintf("%s: port %d, transaction translation not "
507                             "implemented, low/full speed device ignored\n",
508                             USBDEVNAME(sc->sc_dev), port);
509                         continue;
510                 }
511 #endif
512
513                 /* Figure out device speed */
514                 if (status & UPS_HIGH_SPEED)
515                         speed = USB_SPEED_HIGH;
516                 else if (status & UPS_LOW_SPEED)
517                         speed = USB_SPEED_LOW;
518                 else
519                         speed = USB_SPEED_FULL;
520                 /* Get device info and set its address. */
521                 err = usbd_new_device(sc->sc_dev, dev->bus,
522                     dev->depth + 1, speed, port, up);
523                 /* XXX retry a few times? */
524                 if (err) {
525                         DPRINTFN(-1,("uhub_explore: usb_new_device failed, "
526                                      "error=%s\n", usbd_errstr(err)));
527                         /* Avoid addressing problems by disabling. */
528                         /* usbd_reset_port(dev, port, &up->status); */
529
530                         /*
531                          * The unit refused to accept a new address, or had
532                          * some other serious problem.  Since we cannot leave
533                          * at 0 we have to disable the port instead.
534                          */
535                         kprintf("%s: device problem (%s), disabling port %d\n",
536                                USBDEVNAME(sc->sc_dev), usbd_errstr(err), port);
537                         usbd_clear_port_feature(dev, port, UHF_PORT_ENABLE);
538                 } else {
539                         /* The port set up succeeded, reset error count. */
540                         up->restartcnt = 0;
541
542                         if (up->device->hub)
543                                 up->device->hub->explore(up->device);
544                 }
545         }
546         return (USBD_NORMAL_COMPLETION);
547 }
548
549 #if defined(__NetBSD__) || defined(__OpenBSD__)
550 int
551 uhub_activate(device_ptr_t self, enum devact act)
552 {
553         struct uhub_softc *sc = (struct uhub_softc *)self;
554         struct usbd_hub *hub = sc->sc_hub->hub;
555         usbd_device_handle dev;
556         int nports, port, i;
557
558         switch (act) {
559         case DVACT_ACTIVATE:
560                 return (EOPNOTSUPP);
561
562         case DVACT_DEACTIVATE:
563                 if (hub == NULL) /* malfunctioning hub */
564                         break;
565                 nports = hub->hubdesc.bNbrPorts;
566                 for(port = 0; port < nports; port++) {
567                         dev = hub->ports[port].device;
568                         if (dev != NULL && dev->subdevs != NULL) {
569                                 for (i = 0; dev->subdevs[i] != NULL; i++)
570                                         config_deactivate(dev->subdevs[i]);
571                         }
572                 }
573                 break;
574         }
575         return (0);
576 }
577 #endif
578
579 /*
580  * Called from process context when the hub is gone.
581  * Detach all devices on active ports.
582  */
583 USB_DETACH(uhub)
584 {
585         USB_DETACH_START(uhub, sc);
586         struct usbd_hub *hub = sc->sc_hub->hub;
587         struct usbd_port *rup;
588         int port, nports;
589
590 #if defined(__NetBSD__) || defined(__OpenBSD__)
591         DPRINTF(("uhub_detach: sc=%p flags=%d\n", sc, flags));
592 #elif defined(__FreeBSD__) || defined(__DragonFly__)
593         DPRINTF(("uhub_detach: sc=%port\n", sc));
594 #endif
595
596         crit_enter();
597
598         if (hub == NULL) {              /* Must be partially working */
599                 crit_exit();
600                 return (0);
601         }
602
603         usbd_abort_pipe(sc->sc_ipipe);
604         usbd_close_pipe(sc->sc_ipipe);
605
606         nports = hub->hubdesc.bNbrPorts;
607         for(port = 0; port < nports; port++) {
608                 rup = &hub->ports[port];
609                 if (rup->device)
610                         usb_disconnect_port(rup, self);
611         }
612
613         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_hub,
614                            sc->sc_dev);
615
616         if (hub->ports[0].tt)
617                 kfree(hub->ports[0].tt, M_USBDEV);
618         kfree(hub, M_USBDEV);
619         sc->sc_hub->hub = NULL;
620
621         crit_exit();
622
623         return (0);
624 }
625
626 #if defined(__FreeBSD__) || defined(__DragonFly__)
627 int
628 uhub_child_location_str(device_t cbdev, device_t child, char *buf,
629     size_t buflen)
630 {
631         struct uhub_softc *sc = device_get_softc(cbdev);
632         usbd_device_handle devhub = sc->sc_hub;
633         usbd_device_handle dev;
634         int nports;
635         int port;
636         int i;
637
638         crit_enter();
639         nports = devhub->hub->hubdesc.bNbrPorts;
640         for (port = 0; port < nports; port++) {
641                 dev = devhub->hub->ports[port].device;
642                 if (dev && dev->subdevs) {
643                         for (i = 0; dev->subdevs[i]; i++) {
644                                 if (dev->subdevs[i] == child) {
645                                         if (dev->ifacenums == NULL) {
646                                                 ksnprintf(buf, buflen,
647                                                     "port=%i", port);
648                                         } else {
649                                                 ksnprintf(buf, buflen,
650                                                     "port=%i interface=%i",
651                                                     port, dev->ifacenums[i]);
652                                         }
653                                         goto found_dev;
654                                 }
655                         }
656                 }
657         }
658         DPRINTFN(0,("uhub_child_location_str: device not on hub\n"));
659         buf[0] = '\0';
660 found_dev:
661         crit_exit();
662         return (0);
663 }
664
665 int
666 uhub_child_pnpinfo_str(device_t cbdev, device_t child, char *buf,
667     size_t buflen)
668 {
669         struct uhub_softc *sc = device_get_softc(cbdev);
670         usbd_device_handle devhub = sc->sc_hub;
671         usbd_device_handle dev;
672         struct usbd_interface *iface;
673         char serial[128];
674         int nports;
675         int port;
676         int i;
677
678         crit_enter();
679         nports = devhub->hub->hubdesc.bNbrPorts;
680         for (port = 0; port < nports; port++) {
681                 dev = devhub->hub->ports[port].device;
682                 if (dev && dev->subdevs) {
683                         for (i = 0; dev->subdevs[i]; i++) {
684                                 if (dev->subdevs[i] == child) {
685                                         goto found_dev;
686                                 }
687                         }
688                 }
689         }
690         DPRINTFN(0,("uhub_child_pnpinfo_str: device not on hub\n"));
691         buf[0] = '\0';
692         crit_exit();
693         return (0);
694
695 found_dev:
696         /* XXX can sleep */
697         (void)usbd_get_string(dev, dev->ddesc.iSerialNumber, &serial[0]);
698         if (dev->ifacenums == NULL) {
699                 ksnprintf(buf, buflen, "vendor=0x%04x product=0x%04x "
700                     "devclass=0x%02x devsubclass=0x%02x "
701                     "release=0x%04x sernum=\"%s\"",
702                     UGETW(dev->ddesc.idVendor), UGETW(dev->ddesc.idProduct),
703                     dev->ddesc.bDeviceClass, dev->ddesc.bDeviceSubClass,
704                     UGETW(dev->ddesc.bcdDevice), serial);
705         } else {
706                 iface = &dev->ifaces[dev->ifacenums[i]];
707                 ksnprintf(buf, buflen, "vendor=0x%04x product=0x%04x "
708                     "devclass=0x%02x devsubclass=0x%02x "
709                     "release=0x%04x sernum=\"%s\" "
710                     "intclass=0x%02x intsubclass=0x%02x",
711                     UGETW(dev->ddesc.idVendor), UGETW(dev->ddesc.idProduct),
712                     dev->ddesc.bDeviceClass, dev->ddesc.bDeviceSubClass,
713                     UGETW(dev->ddesc.bcdDevice), serial,
714                     iface->idesc->bInterfaceClass,
715                     iface->idesc->bInterfaceSubClass);
716         }
717         crit_exit();
718         return (0);
719 }
720
721 Static void
722 uhub_child_detached(device_t self, device_t child)
723 {
724         struct uhub_softc *sc = device_get_softc(self);
725         usbd_device_handle devhub = sc->sc_hub;
726         usbd_device_handle dev = NULL;
727         int nports, port, i = 0;
728
729         crit_enter();
730         nports = devhub->hub->hubdesc.bNbrPorts;
731         for (port = 0; port < nports; port++) {
732                 dev = devhub->hub->ports[port].device;
733                 if (dev && dev->subdevs) {
734                         for (i = 0; dev->subdevs[i]; ++i) {
735                                 if (dev->subdevs[i] == child)
736                                         goto found_dev;
737                         }
738                 }
739         }
740         crit_exit();
741         return;
742
743 found_dev:
744 #if 0
745         kprintf("%s: at %s", USBDEVPTRNAME(dev->subdevs[i]),
746                USBDEVPTRNAME(self));
747         if (port != 0)
748                 kprintf(" port %d", port);
749         kprintf(" (addr %d) disconnected\n", dev->address);
750 #endif
751         kfree(device_get_ivars(dev->subdevs[i]), M_USB);
752         dev->subdevs[i] = NULL;
753         crit_exit();
754 }
755 #endif
756
757
758 /*
759  * Hub interrupt.
760  * This an indication that some port has changed status.
761  * Notify the bus event handler thread that we need
762  * to be explored again.
763  */
764 void
765 uhub_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
766 {
767         struct uhub_softc *sc = addr;
768
769         DPRINTFN(5,("uhub_intr: sc=%p\n", sc));
770         if (status == USBD_STALLED)
771                 usbd_clear_endpoint_stall_async(sc->sc_ipipe);
772         else if (status == USBD_NORMAL_COMPLETION)
773                 usb_needs_explore(sc->sc_hub);
774 }
775
776 #if defined(__FreeBSD__) || defined(__DragonFly__)
777 DRIVER_MODULE(uhub, usb, uhubroot_driver, uhubroot_devclass, 0, 0);
778 DRIVER_MODULE(uhub, uhub, uhub_driver, uhub_devclass, usbd_driver_load, 0);
779 #endif