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 1.20 2008/01/25 08:49:47 hasso Exp $ */
6 * Copyright (c) 1998 The NetBSD Foundation, Inc.
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Lennart Augustsson (lennart@augustsson.net) at
11 * Carlstedt Research & Technology.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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.
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.
43 * USB spec: http://www.usb.org/developers/docs/usbspec.zip
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/malloc.h>
50 #include <sys/module.h>
53 #include <sys/thread2.h>
54 #include <sys/sysctl.h>
56 #include <bus/usb/usb.h>
57 #include <bus/usb/usbdi.h>
58 #include <bus/usb/usbdi_util.h>
59 #include <bus/usb/usbdivar.h>
61 #define UHUB_INTR_INTERVAL 255 /* ms */
64 #define DPRINTF(x) if (uhubdebug) kprintf x
65 #define DPRINTFN(n,x) if (uhubdebug>(n)) kprintf x
67 SYSCTL_NODE(_hw_usb
, OID_AUTO
, uhub
, CTLFLAG_RW
, 0, "USB uhub");
68 SYSCTL_INT(_hw_usb_uhub
, OID_AUTO
, debug
, CTLFLAG_RW
,
69 &uhubdebug
, 0, "uhub debug level");
76 device_t sc_dev
; /* base device */
77 usbd_device_handle sc_hub
; /* USB device */
78 usbd_pipe_handle sc_ipipe
; /* interrupt pipe */
79 u_int8_t sc_status
[1]; /* XXX more ports */
82 #define UHUB_PROTO(sc) ((sc)->sc_hub->ddesc.bDeviceProtocol)
83 #define UHUB_IS_HIGH_SPEED(sc) (UHUB_PROTO(sc) != UDPROTO_FSHUB)
84 #define UHUB_IS_SINGLE_TT(sc) (UHUB_PROTO(sc) == UDPROTO_HSHUBSTT)
86 static usbd_status
uhub_explore(usbd_device_handle hub
);
87 static void uhub_intr(usbd_xfer_handle
, usbd_private_handle
,usbd_status
);
89 static bus_child_detached_t uhub_child_detached
;
90 static bus_child_location_str_t uhub_child_location_str
;
91 static bus_child_pnpinfo_str_t uhub_child_pnpinfo_str
;
94 * We need two attachment points:
95 * hub to usb and hub to hub
96 * Every other driver only connects to hubs
99 static device_probe_t uhub_match
;
100 static device_attach_t uhub_attach
;
101 static device_detach_t uhub_detach
;
103 static devclass_t uhub_devclass
;
105 static kobj_method_t uhub_methods
[] = {
106 DEVMETHOD(device_probe
, uhub_match
),
107 DEVMETHOD(device_attach
, uhub_attach
),
108 DEVMETHOD(device_detach
, uhub_detach
),
109 DEVMETHOD(bus_child_detached
, uhub_child_detached
),
110 DEVMETHOD(bus_child_pnpinfo_str
, uhub_child_pnpinfo_str
),
111 DEVMETHOD(bus_child_location_str
, uhub_child_location_str
),
112 DEVMETHOD(bus_driver_added
, bus_generic_driver_added
),
113 DEVMETHOD(device_suspend
, bus_generic_suspend
),
114 DEVMETHOD(device_resume
, bus_generic_resume
),
115 DEVMETHOD(device_shutdown
, bus_generic_shutdown
),
119 static driver_t uhub_driver
= {
122 sizeof(struct uhub_softc
)
125 MODULE_DEPEND(uhub
, usb
, 1, 1, 1);
127 /* Create the driver instance for the hub connected to usb case. */
128 devclass_t uhubroot_devclass
;
130 static device_method_t uhubroot_methods
[] = {
131 DEVMETHOD(bus_child_detached
, uhub_child_detached
),
132 DEVMETHOD(bus_child_location_str
, uhub_child_location_str
),
133 DEVMETHOD(bus_child_pnpinfo_str
, uhub_child_pnpinfo_str
),
134 DEVMETHOD(bus_driver_added
, bus_generic_driver_added
),
136 DEVMETHOD(device_probe
, uhub_match
),
137 DEVMETHOD(device_attach
, uhub_attach
),
138 DEVMETHOD(device_detach
, uhub_detach
),
139 DEVMETHOD(device_suspend
, bus_generic_suspend
),
140 DEVMETHOD(device_resume
, bus_generic_resume
),
141 DEVMETHOD(device_shutdown
, bus_generic_shutdown
),
145 static driver_t uhubroot_driver
= {
148 sizeof(struct uhub_softc
)
152 uhub_match(device_t self
)
154 struct usb_attach_arg
*uaa
= device_get_ivars(self
);
155 usb_device_descriptor_t
*dd
= usbd_get_device_descriptor(uaa
->device
);
157 DPRINTFN(5,("uhub_match, dd=%p\n", dd
));
159 * The subclass for hubs seems to be 0 for some and 1 for others,
160 * so we just ignore the subclass.
162 if (uaa
->iface
== NULL
&& dd
->bDeviceClass
== UDCLASS_HUB
)
163 return (UMATCH_DEVCLASS_DEVSUBCLASS
);
164 return (UMATCH_NONE
);
168 uhub_attach(device_t self
)
170 struct uhub_softc
*sc
= device_get_softc(self
);
171 struct usb_attach_arg
*uaa
= device_get_ivars(self
);
172 usbd_device_handle dev
= uaa
->device
;
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
;
182 DPRINTFN(1,("uhub_attach\n"));
186 if (dev
->depth
> 0 && UHUB_IS_HIGH_SPEED(sc
)) {
187 kprintf("%s: %s transaction translator%s\n",
188 device_get_nameunit(sc
->sc_dev
),
189 UHUB_IS_SINGLE_TT(sc
) ? "single" : "multiple",
190 UHUB_IS_SINGLE_TT(sc
) ? "" : "s");
192 err
= usbd_set_config_index(dev
, 0, 1);
194 DPRINTF(("%s: configuration failed, error=%s\n",
195 device_get_nameunit(sc
->sc_dev
), usbd_errstr(err
)));
199 if (dev
->depth
> USB_HUB_MAX_DEPTH
) {
200 kprintf("%s: hub depth (%d) exceeded, hub ignored\n",
201 device_get_nameunit(sc
->sc_dev
), USB_HUB_MAX_DEPTH
);
205 /* Get hub descriptor. */
206 req
.bmRequestType
= UT_READ_CLASS_DEVICE
;
207 req
.bRequest
= UR_GET_DESCRIPTOR
;
208 USETW2(req
.wValue
, (dev
->address
> 1 ? UDESC_HUB
: 0), 0);
209 USETW(req
.wIndex
, 0);
210 USETW(req
.wLength
, USB_HUB_DESCRIPTOR_SIZE
);
211 DPRINTFN(1,("usb_init_hub: getting hub descriptor\n"));
212 err
= usbd_do_request(dev
, &req
, &hubdesc
);
213 nports
= hubdesc
.bNbrPorts
;
214 if (!err
&& nports
> 7) {
215 USETW(req
.wLength
, USB_HUB_DESCRIPTOR_SIZE
+ (nports
+1) / 8);
216 err
= usbd_do_request(dev
, &req
, &hubdesc
);
219 DPRINTF(("%s: getting hub descriptor failed, error=%s\n",
220 device_get_nameunit(sc
->sc_dev
), usbd_errstr(err
)));
224 for (nremov
= 0, port
= 1; port
<= nports
; port
++)
225 if (!UHD_NOT_REMOV(&hubdesc
, port
))
227 kprintf("%s: %d port%s with %d removable, %s powered\n",
228 device_get_nameunit(sc
->sc_dev
), nports
, nports
!= 1 ? "s" : "",
229 nremov
, dev
->self_powered
? "self" : "bus");
232 kprintf("%s: no ports, hub ignored\n", device_get_nameunit(sc
->sc_dev
));
236 hub
= kmalloc(sizeof(*hub
) + (nports
-1) * sizeof(struct usbd_port
),
239 dev
->hub
->hubsoftc
= sc
;
240 hub
->explore
= uhub_explore
;
241 hub
->hubdesc
= hubdesc
;
243 DPRINTFN(1,("usbhub_init_hub: selfpowered=%d, parent=%p, "
244 "parent->selfpowered=%d\n",
245 dev
->self_powered
, dev
->powersrc
->parent
,
246 dev
->powersrc
->parent
?
247 dev
->powersrc
->parent
->self_powered
: 0));
249 if (!dev
->self_powered
&& dev
->powersrc
->parent
!= NULL
&&
250 !dev
->powersrc
->parent
->self_powered
) {
251 kprintf("%s: bus powered hub connected to bus powered hub, "
252 "ignored\n", device_get_nameunit(sc
->sc_dev
));
256 /* Set up interrupt pipe. */
257 err
= usbd_device2interface_handle(dev
, 0, &iface
);
259 kprintf("%s: no interface handle\n", device_get_nameunit(sc
->sc_dev
));
262 ed
= usbd_interface2endpoint_descriptor(iface
, 0);
264 kprintf("%s: no endpoint descriptor\n", device_get_nameunit(sc
->sc_dev
));
267 if ((ed
->bmAttributes
& UE_XFERTYPE
) != UE_INTERRUPT
) {
268 kprintf("%s: bad interrupt endpoint\n", device_get_nameunit(sc
->sc_dev
));
272 err
= usbd_open_pipe_intr(iface
, ed
->bEndpointAddress
,
273 USBD_SHORT_XFER_OK
, &sc
->sc_ipipe
, sc
, sc
->sc_status
,
274 sizeof(sc
->sc_status
), uhub_intr
, UHUB_INTR_INTERVAL
);
276 kprintf("%s: cannot open interrupt pipe\n",
277 device_get_nameunit(sc
->sc_dev
));
281 /* Wait with power off for a while. */
282 usbd_delay_ms(dev
, USB_POWER_DOWN_TIME
);
284 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH
, dev
, sc
->sc_dev
);
287 * To have the best chance of success we do things in the exact same
288 * order as Windoze98. This should not be necessary, but some
289 * devices do not follow the USB specs to the letter.
291 * These are the events on the bus when a hub is attached:
292 * Get device and config descriptors (see attach code)
293 * Get hub descriptor (see above)
296 * wait for power to become stable
297 * (all below happens in explore code)
299 * clear C_PORT_CONNECTION
302 * if device connected
308 * proceed with device attachment
311 if (UHUB_IS_HIGH_SPEED(sc
)) {
312 tts
= kmalloc((UHUB_IS_SINGLE_TT(sc
) ? 1 : nports
) *
313 sizeof(struct usbd_tt
), M_USBDEV
, M_WAITOK
);
316 /* Set up data structures */
317 for (p
= 0; p
< nports
; p
++) {
318 struct usbd_port
*up
= &hub
->ports
[p
];
322 if (dev
->self_powered
)
323 /* Self powered hub, give ports maximum current. */
324 up
->power
= USB_MAX_POWER
;
326 up
->power
= USB_MIN_POWER
;
328 if (UHUB_IS_HIGH_SPEED(sc
)) {
329 up
->tt
= &tts
[UHUB_IS_SINGLE_TT(sc
) ? 0 : p
];
336 /* XXX should check for none, individual, or ganged power? */
338 pwrdly
= dev
->hub
->hubdesc
.bPwrOn2PwrGood
* UHD_PWRON_FACTOR
339 + USB_EXTRA_POWER_UP_TIME
;
340 for (port
= 1; port
<= nports
; port
++) {
341 /* Turn the power on. */
342 err
= usbd_set_port_feature(dev
, port
, UHF_PORT_POWER
);
344 kprintf("%s: port %d power on failed, %s\n",
345 device_get_nameunit(sc
->sc_dev
), port
,
347 DPRINTF(("usb_init_port: turn on port %d power\n", port
));
350 /* Wait for stable power if we are not a root hub */
351 if (dev
->powersrc
->parent
!= NULL
)
352 usbd_delay_ms(dev
, pwrdly
);
354 /* The usual exploration will finish the setup. */
362 kfree(hub
, M_USBDEV
);
368 uhub_explore(usbd_device_handle dev
)
370 usb_hub_descriptor_t
*hd
= &dev
->hub
->hubdesc
;
371 struct uhub_softc
*sc
= dev
->hub
->hubsoftc
;
372 struct usbd_port
*up
;
378 DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev
, dev
->address
));
381 return (USBD_NOT_STARTED
);
383 /* Ignore hubs that are too deep. */
384 if (dev
->depth
> USB_HUB_MAX_DEPTH
)
385 return (USBD_TOO_DEEP
);
387 for(port
= 1; port
<= hd
->bNbrPorts
; port
++) {
388 up
= &dev
->hub
->ports
[port
-1];
389 err
= usbd_get_port_status(dev
, port
, &up
->status
);
391 DPRINTF(("uhub_explore: get port status failed, "
392 "error=%s\n", usbd_errstr(err
)));
395 status
= UGETW(up
->status
.wPortStatus
);
396 change
= UGETW(up
->status
.wPortChange
);
397 DPRINTFN(3,("uhub_explore: %s port %d status 0x%04x 0x%04x\n",
398 device_get_nameunit(sc
->sc_dev
), port
, status
, change
));
399 if (change
& UPS_C_PORT_ENABLED
) {
400 DPRINTF(("uhub_explore: C_PORT_ENABLED 0x%x\n", change
));
401 usbd_clear_port_feature(dev
, port
, UHF_C_PORT_ENABLE
);
402 if (change
& UPS_C_CONNECT_STATUS
) {
403 /* Ignore the port error if the device
405 } else if (status
& UPS_PORT_ENABLED
) {
406 kprintf("%s: illegal enable change, port %d\n",
407 device_get_nameunit(sc
->sc_dev
), port
);
409 /* Port error condition. */
410 if (up
->restartcnt
) /* no message first time */
411 kprintf("%s: port error, restarting "
413 device_get_nameunit(sc
->sc_dev
), port
);
415 if (up
->restartcnt
++ < USBD_RESTART_MAX
)
418 kprintf("%s: port error, giving up "
420 device_get_nameunit(sc
->sc_dev
), port
);
423 if (!(change
& UPS_C_CONNECT_STATUS
)) {
424 DPRINTFN(3,("uhub_explore: port=%d !C_CONNECT_"
426 /* No status change, just do recursive explore. */
427 if (up
->device
!= NULL
&& up
->device
->hub
!= NULL
)
428 up
->device
->hub
->explore(up
->device
);
429 #if 0 && defined(DIAGNOSTIC)
430 if (up
->device
== NULL
&&
431 (status
& UPS_CURRENT_CONNECT_STATUS
))
432 kprintf("%s: connected, no device\n",
433 device_get_nameunit(sc
->sc_dev
));
438 /* We have a connect status change, handle it. */
440 DPRINTF(("uhub_explore: status change hub=%d port=%d\n",
441 dev
->address
, port
));
442 usbd_clear_port_feature(dev
, port
, UHF_C_PORT_CONNECTION
);
443 /*usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);*/
445 * If there is already a device on the port the change status
446 * must mean that is has disconnected. Looking at the
447 * current connect status is not enough to figure this out
448 * since a new unit may have been connected before we handle
452 if (up
->device
!= NULL
) {
454 DPRINTF(("uhub_explore: device addr=%d disappeared "
455 "on port %d\n", up
->device
->address
, port
));
456 usb_disconnect_port(up
, sc
->sc_dev
);
457 usbd_clear_port_feature(dev
, port
,
458 UHF_C_PORT_CONNECTION
);
460 if (!(status
& UPS_CURRENT_CONNECT_STATUS
)) {
461 /* Nothing connected, just ignore it. */
462 DPRINTFN(3,("uhub_explore: port=%d !CURRENT_CONNECT"
469 if (!(status
& UPS_PORT_POWER
))
470 kprintf("%s: strange, connected port %d has no power\n",
471 device_get_nameunit(sc
->sc_dev
), port
);
473 /* Wait for maximum device power up time. */
474 usbd_delay_ms(dev
, USB_PORT_POWERUP_DELAY
);
476 /* Reset port, which implies enabling it. */
477 if (usbd_reset_port(dev
, port
, &up
->status
)) {
478 kprintf("%s: port %d reset failed\n",
479 device_get_nameunit(sc
->sc_dev
), port
);
482 /* Get port status again, it might have changed during reset */
483 err
= usbd_get_port_status(dev
, port
, &up
->status
);
485 DPRINTF(("uhub_explore: get port status failed, "
486 "error=%s\n", usbd_errstr(err
)));
489 status
= UGETW(up
->status
.wPortStatus
);
490 change
= UGETW(up
->status
.wPortChange
);
491 if (!(status
& UPS_CURRENT_CONNECT_STATUS
)) {
492 /* Nothing connected, just ignore it. */
494 kprintf("%s: port %d, device disappeared after reset\n",
495 device_get_nameunit(sc
->sc_dev
), port
);
501 if (UHUB_IS_HIGH_SPEED(sc
) && !(status
& UPS_HIGH_SPEED
)) {
502 kprintf("%s: port %d, transaction translation not "
503 "implemented, low/full speed device ignored\n",
504 device_get_nameunit(sc
->sc_dev
), port
);
509 /* Figure out device speed */
510 if (status
& UPS_HIGH_SPEED
)
511 speed
= USB_SPEED_HIGH
;
512 else if (status
& UPS_LOW_SPEED
)
513 speed
= USB_SPEED_LOW
;
515 speed
= USB_SPEED_FULL
;
516 /* Get device info and set its address. */
517 err
= usbd_new_device(sc
->sc_dev
, dev
->bus
,
518 dev
->depth
+ 1, speed
, port
, up
);
519 /* XXX retry a few times? */
521 DPRINTFN(-1,("uhub_explore: usb_new_device failed, "
522 "error=%s\n", usbd_errstr(err
)));
523 /* Avoid addressing problems by disabling. */
524 /* usbd_reset_port(dev, port, &up->status); */
527 * The unit refused to accept a new address, or had
528 * some other serious problem. Since we cannot leave
529 * at 0 we have to disable the port instead.
531 kprintf("%s: device problem (%s), disabling port %d\n",
532 device_get_nameunit(sc
->sc_dev
), usbd_errstr(err
), port
);
533 usbd_clear_port_feature(dev
, port
, UHF_PORT_ENABLE
);
535 /* The port set up succeeded, reset error count. */
539 up
->device
->hub
->explore(up
->device
);
542 return (USBD_NORMAL_COMPLETION
);
546 * Called from process context when the hub is gone.
547 * Detach all devices on active ports.
550 uhub_detach(device_t self
)
552 struct uhub_softc
*sc
= device_get_softc(self
);
553 struct usbd_hub
*hub
= sc
->sc_hub
->hub
;
554 struct usbd_port
*rup
;
557 DPRINTF(("uhub_detach: sc=%port\n", sc
));
561 if (hub
== NULL
) { /* Must be partially working */
566 usbd_abort_pipe(sc
->sc_ipipe
);
567 usbd_close_pipe(sc
->sc_ipipe
);
569 nports
= hub
->hubdesc
.bNbrPorts
;
570 for(port
= 0; port
< nports
; port
++) {
571 rup
= &hub
->ports
[port
];
573 usb_disconnect_port(rup
, self
);
576 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH
, sc
->sc_hub
,
579 if (hub
->ports
[0].tt
)
580 kfree(hub
->ports
[0].tt
, M_USBDEV
);
581 kfree(hub
, M_USBDEV
);
582 sc
->sc_hub
->hub
= NULL
;
590 uhub_child_location_str(device_t cbdev
, device_t child
, char *buf
,
593 struct uhub_softc
*sc
= device_get_softc(cbdev
);
594 usbd_device_handle devhub
= sc
->sc_hub
;
595 usbd_device_handle dev
;
601 nports
= devhub
->hub
->hubdesc
.bNbrPorts
;
602 for (port
= 0; port
< nports
; port
++) {
603 dev
= devhub
->hub
->ports
[port
].device
;
604 if (dev
&& dev
->subdevs
) {
605 for (i
= 0; dev
->subdevs
[i
]; i
++) {
606 if (dev
->subdevs
[i
] == child
) {
607 if (dev
->ifacenums
== NULL
) {
608 ksnprintf(buf
, buflen
,
611 ksnprintf(buf
, buflen
,
612 "port=%i interface=%i",
613 port
, dev
->ifacenums
[i
]);
620 DPRINTFN(0,("uhub_child_location_str: device not on hub\n"));
628 uhub_child_pnpinfo_str(device_t cbdev
, device_t child
, char *buf
,
631 struct uhub_softc
*sc
= device_get_softc(cbdev
);
632 usbd_device_handle devhub
= sc
->sc_hub
;
633 usbd_device_handle dev
;
634 struct usbd_interface
*iface
;
641 nports
= devhub
->hub
->hubdesc
.bNbrPorts
;
642 for (port
= 0; port
< nports
; port
++) {
643 dev
= devhub
->hub
->ports
[port
].device
;
644 if (dev
&& dev
->subdevs
) {
645 for (i
= 0; dev
->subdevs
[i
]; i
++) {
646 if (dev
->subdevs
[i
] == child
) {
652 DPRINTFN(0,("uhub_child_pnpinfo_str: device not on hub\n"));
659 (void)usbd_get_string(dev
, dev
->ddesc
.iSerialNumber
, &serial
[0]);
660 if (dev
->ifacenums
== NULL
) {
661 ksnprintf(buf
, buflen
, "vendor=0x%04x product=0x%04x "
662 "devclass=0x%02x devsubclass=0x%02x "
663 "release=0x%04x sernum=\"%s\"",
664 UGETW(dev
->ddesc
.idVendor
), UGETW(dev
->ddesc
.idProduct
),
665 dev
->ddesc
.bDeviceClass
, dev
->ddesc
.bDeviceSubClass
,
666 UGETW(dev
->ddesc
.bcdDevice
), serial
);
668 iface
= &dev
->ifaces
[dev
->ifacenums
[i
]];
669 ksnprintf(buf
, buflen
, "vendor=0x%04x product=0x%04x "
670 "devclass=0x%02x devsubclass=0x%02x "
671 "release=0x%04x sernum=\"%s\" "
672 "intclass=0x%02x intsubclass=0x%02x",
673 UGETW(dev
->ddesc
.idVendor
), UGETW(dev
->ddesc
.idProduct
),
674 dev
->ddesc
.bDeviceClass
, dev
->ddesc
.bDeviceSubClass
,
675 UGETW(dev
->ddesc
.bcdDevice
), serial
,
676 iface
->idesc
->bInterfaceClass
,
677 iface
->idesc
->bInterfaceSubClass
);
684 uhub_child_detached(device_t self
, device_t child
)
686 struct uhub_softc
*sc
= device_get_softc(self
);
687 usbd_device_handle devhub
= sc
->sc_hub
;
688 usbd_device_handle dev
= NULL
;
689 int nports
, port
, i
= 0;
692 nports
= devhub
->hub
->hubdesc
.bNbrPorts
;
693 for (port
= 0; port
< nports
; port
++) {
694 dev
= devhub
->hub
->ports
[port
].device
;
695 if (dev
&& dev
->subdevs
) {
696 for (i
= 0; dev
->subdevs
[i
]; ++i
) {
697 if (dev
->subdevs
[i
] == child
)
707 kprintf("%s: at %s", device_get_nameunit(dev
->subdevs
[i
]),
708 device_get_nameunit(self
));
710 kprintf(" port %d", port
);
711 kprintf(" (addr %d) disconnected\n", dev
->address
);
713 kfree(device_get_ivars(dev
->subdevs
[i
]), M_USB
);
714 dev
->subdevs
[i
] = NULL
;
720 * This an indication that some port has changed status.
721 * Notify the bus event handler thread that we need
722 * to be explored again.
725 uhub_intr(usbd_xfer_handle xfer
, usbd_private_handle addr
, usbd_status status
)
727 struct uhub_softc
*sc
= addr
;
729 DPRINTFN(5,("uhub_intr: sc=%p\n", sc
));
730 if (status
== USBD_STALLED
)
731 usbd_clear_endpoint_stall_async(sc
->sc_ipipe
);
732 else if (status
== USBD_NORMAL_COMPLETION
)
733 usb_needs_explore(sc
->sc_hub
);
736 DRIVER_MODULE(uhub
, usb
, uhubroot_driver
, uhubroot_devclass
, 0, 0);
737 DRIVER_MODULE(uhub
, uhub
, uhub_driver
, uhub_devclass
, usbd_driver_load
, 0);