diff options
Diffstat (limited to 'sys/legacy/dev/usb/uhub.c')
| -rw-r--r-- | sys/legacy/dev/usb/uhub.c | 703 |
1 files changed, 703 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/uhub.c b/sys/legacy/dev/usb/uhub.c new file mode 100644 index 0000000..86fbba2 --- /dev/null +++ b/sys/legacy/dev/usb/uhub.c @@ -0,0 +1,703 @@ +/* $NetBSD: uhub.c,v 1.68 2004/06/29 06:30:05 mycroft Exp $ */ + +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Lennart Augustsson (lennart@augustsson.net) at + * Carlstedt Research & Technology. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * USB spec: http://www.usb.org/developers/docs/usbspec.zip + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/lock.h> +#include <sys/mutex.h> +#include <sys/sysctl.h> + +#include <machine/bus.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include <dev/usb/usbdivar.h> + +#define UHUB_INTR_INTERVAL 255 /* ms */ + +#ifdef USB_DEBUG +#define DPRINTF(x) if (uhubdebug) printf x +#define DPRINTFN(n,x) if (uhubdebug > (n)) printf x +#define DEVPRINTF(x) if (uhubdebug) device_printf x +#define DEVPRINTFN(n, x)if (uhubdebug > (n)) device_printf x +int uhubdebug = 0; +SYSCTL_NODE(_hw_usb, OID_AUTO, uhub, CTLFLAG_RW, 0, "USB uhub"); +SYSCTL_INT(_hw_usb_uhub, OID_AUTO, debug, CTLFLAG_RW, + &uhubdebug, 0, "uhub debug level"); +#else +#define DPRINTF(x) +#define DPRINTFN(n,x) +#define DEVPRINTF(x) +#define DEVPRINTFN(n,x) +#endif + +struct uhub_softc { + device_t sc_dev; /* base device */ + usbd_device_handle sc_hub; /* USB device */ + usbd_pipe_handle sc_ipipe; /* interrupt pipe */ + u_int8_t sc_status[32]; /* max 255 ports */ + u_char sc_running; +}; +#define UHUB_PROTO(sc) ((sc)->sc_hub->ddesc.bDeviceProtocol) +#define UHUB_IS_HIGH_SPEED(sc) (UHUB_PROTO(sc) != UDPROTO_FSHUB) +#define UHUB_IS_SINGLE_TT(sc) (UHUB_PROTO(sc) == UDPROTO_HSHUBSTT) + +static usbd_status uhub_explore(usbd_device_handle hub); +static void uhub_intr(usbd_xfer_handle, usbd_private_handle,usbd_status); + +/* + * We need two attachment points: + * hub to usb and hub to hub + * Every other driver only connects to hubs + */ + +static device_probe_t uhub_match; +static device_attach_t uhub_attach; +static device_detach_t uhub_detach; +static bus_child_location_str_t uhub_child_location_str; +static bus_child_pnpinfo_str_t uhub_child_pnpinfo_str; + +static device_method_t uhub_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, uhub_match), + DEVMETHOD(device_attach, uhub_attach), + DEVMETHOD(device_detach, uhub_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + DEVMETHOD(bus_child_pnpinfo_str, uhub_child_pnpinfo_str), + DEVMETHOD(bus_child_location_str, uhub_child_location_str), + /* XXX driver_added needs special care */ + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + { 0, 0 } +}; + +static driver_t uhub_driver = { + "uhub", + uhub_methods, + sizeof(struct uhub_softc) +}; + +static devclass_t uhub_devclass; + +/* Create the driver instance for the hub connected to usb case. */ +devclass_t uhubroot_devclass; + +static device_method_t uhubroot_methods[] = { + DEVMETHOD(device_probe, uhub_match), + DEVMETHOD(device_attach, uhub_attach), + DEVMETHOD(device_detach, uhub_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + DEVMETHOD(bus_child_location_str, uhub_child_location_str), + DEVMETHOD(bus_child_pnpinfo_str, uhub_child_pnpinfo_str), + /* XXX driver_added needs special care */ + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + + {0,0} +}; + +static driver_t uhubroot_driver = { + "uhub", + uhubroot_methods, + sizeof(struct uhub_softc) +}; + +static int +uhub_match(device_t self) +{ + struct usb_attach_arg *uaa = device_get_ivars(self); + usb_device_descriptor_t *dd = usbd_get_device_descriptor(uaa->device); + + DPRINTFN(5,("uhub_match, dd=%p\n", dd)); + /* + * The subclass for hubs seems to be 0 for some and 1 for others, + * so we just ignore the subclass. + */ + if (uaa->iface == NULL && dd->bDeviceClass == UDCLASS_HUB) + return (UMATCH_DEVCLASS_DEVSUBCLASS); + return (UMATCH_NONE); +} + +int +uhub_attach(device_t self) +{ + struct uhub_softc *sc = device_get_softc(self); + struct usb_attach_arg *uaa = device_get_ivars(self); + usbd_device_handle dev = uaa->device; + usbd_status err; + struct usbd_hub *hub = NULL; + usb_device_request_t req; + usb_hub_descriptor_t hubdesc; + int p, port, nports, nremov, pwrdly; + usbd_interface_handle iface; + usb_endpoint_descriptor_t *ed; + struct usbd_tt *tts = NULL; + + DPRINTFN(1,("uhub_attach\n")); + sc->sc_hub = dev; + sc->sc_dev = self; + + if (dev->depth > 0 && UHUB_IS_HIGH_SPEED(sc)) { + device_printf(sc->sc_dev, "%s transaction translator%s\n", + UHUB_IS_SINGLE_TT(sc) ? "single" : "multiple", + UHUB_IS_SINGLE_TT(sc) ? "" : "s"); + } + err = usbd_set_config_index(dev, 0, 1); + if (err) { + DEVPRINTF((sc->sc_dev, "configuration failed, error=%s\n", + usbd_errstr(err))); + return (ENXIO); + } + + if (dev->depth > USB_HUB_MAX_DEPTH) { + device_printf(sc->sc_dev, "hub depth (%d) exceeded, hub ignored\n", + USB_HUB_MAX_DEPTH); + return (ENXIO); + } + + /* Get hub descriptor. */ + req.bmRequestType = UT_READ_CLASS_DEVICE; + req.bRequest = UR_GET_DESCRIPTOR; + USETW2(req.wValue, (dev->address > 1 ? UDESC_HUB : 0), 0); + USETW(req.wIndex, 0); + USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE); + DPRINTFN(1,("usb_init_hub: getting hub descriptor\n")); + err = usbd_do_request(dev, &req, &hubdesc); + nports = hubdesc.bNbrPorts; + if (!err && nports > 7) { + USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE + (nports+1) / 8); + err = usbd_do_request(dev, &req, &hubdesc); + } + if (err) { + DEVPRINTF((sc->sc_dev, "getting hub descriptor failed: %s\n", + usbd_errstr(err))); + return (ENXIO); + } + + for (nremov = 0, port = 1; port <= nports; port++) + if (!UHD_NOT_REMOV(&hubdesc, port)) + nremov++; + device_printf(sc->sc_dev, "%d port%s with %d removable, %s powered\n", + nports, nports != 1 ? "s" : "", nremov, + dev->self_powered ? "self" : "bus"); + + if (nports == 0) { + device_printf(sc->sc_dev, "no ports, hub ignored\n"); + goto bad; + } + + hub = malloc(sizeof(*hub) + (nports-1) * sizeof(struct usbd_port), + M_USBDEV, M_NOWAIT); + if (hub == NULL) { + return (ENXIO); + } + dev->hub = hub; + dev->hub->hubsoftc = sc; + hub->explore = uhub_explore; + hub->hubdesc = hubdesc; + + DPRINTFN(1,("usbhub_init_hub: selfpowered=%d, parent=%p, " + "parent->selfpowered=%d\n", + dev->self_powered, dev->powersrc->parent, + dev->powersrc->parent ? + dev->powersrc->parent->self_powered : 0)); + + if (!dev->self_powered && dev->powersrc->parent != NULL && + !dev->powersrc->parent->self_powered) { + device_printf(sc->sc_dev, "bus powered hub connected to bus " + "powered hub, ignored\n"); + goto bad; + } + + /* Set up interrupt pipe. */ + err = usbd_device2interface_handle(dev, 0, &iface); + if (err) { + device_printf(sc->sc_dev, "no interface handle\n"); + goto bad; + } + ed = usbd_interface2endpoint_descriptor(iface, 0); + if (ed == NULL) { + device_printf(sc->sc_dev, "no endpoint descriptor\n"); + goto bad; + } + if ((ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) { + device_printf(sc->sc_dev, "bad interrupt endpoint\n"); + goto bad; + } + + err = usbd_open_pipe_intr(iface, ed->bEndpointAddress, + USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_status, + (nports + 1 + 7) / 8, uhub_intr, UHUB_INTR_INTERVAL); + if (err) { + device_printf(sc->sc_dev, "cannot open interrupt pipe\n"); + goto bad; + } + + /* Wait with power off for a while. */ + usbd_delay_ms(dev, USB_POWER_DOWN_TIME); + + usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, dev, sc->sc_dev); + + /* + * To have the best chance of success we do things in the exact same + * order as Windoze98. This should not be necessary, but some + * devices do not follow the USB specs to the letter. + * + * These are the events on the bus when a hub is attached: + * Get device and config descriptors (see attach code) + * Get hub descriptor (see above) + * For all ports + * turn on power + * wait for power to become stable + * (all below happens in explore code) + * For all ports + * clear C_PORT_CONNECTION + * For all ports + * get port status + * if device connected + * wait 100 ms + * turn on reset + * wait + * clear C_PORT_RESET + * get port status + * proceed with device attachment + */ + + if (UHUB_IS_HIGH_SPEED(sc)) { + tts = malloc((UHUB_IS_SINGLE_TT(sc) ? 1 : nports) * + sizeof (struct usbd_tt), M_USBDEV, M_NOWAIT); + if (!tts) + goto bad; + } + + /* Set up data structures */ + for (p = 0; p < nports; p++) { + struct usbd_port *up = &hub->ports[p]; + up->device = NULL; + up->parent = dev; + up->portno = p+1; + if (dev->self_powered) + /* Self powered hub, give ports maximum current. */ + up->power = USB_MAX_POWER; + else + up->power = USB_MIN_POWER; + up->restartcnt = 0; + if (UHUB_IS_HIGH_SPEED(sc)) { + up->tt = &tts[UHUB_IS_SINGLE_TT(sc) ? 0 : p]; + up->tt->hub = hub; + } else { + up->tt = NULL; + } + } + + /* XXX should check for none, individual, or ganged power? */ + + pwrdly = dev->hub->hubdesc.bPwrOn2PwrGood * UHD_PWRON_FACTOR + + USB_EXTRA_POWER_UP_TIME; + for (port = 1; port <= nports; port++) { + /* Turn the power on. */ + err = usbd_set_port_feature(dev, port, UHF_PORT_POWER); + if (err) + device_printf(sc->sc_dev, + "port %d power on failed, %s\n", port, + usbd_errstr(err)); + DPRINTF(("usb_init_port: turn on port %d power\n", port)); + /* Wait for stable power. */ + usbd_delay_ms(dev, pwrdly); + } + + /* The usual exploration will finish the setup. */ + + sc->sc_running = 1; + return (0); + bad: + if (hub) + free(hub, M_USBDEV); + dev->hub = NULL; + return (ENXIO); +} + +usbd_status +uhub_explore(usbd_device_handle dev) +{ + usb_hub_descriptor_t *hd = &dev->hub->hubdesc; + struct uhub_softc *sc = dev->hub->hubsoftc; + struct usbd_port *up; + usbd_status err; + int speed; + int port; + int change, status; + + DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev, dev->address)); + + if (!sc->sc_running) + return (USBD_NOT_STARTED); + + /* Ignore hubs that are too deep. */ + if (dev->depth > USB_HUB_MAX_DEPTH) + return (USBD_TOO_DEEP); + + for(port = 1; port <= hd->bNbrPorts; port++) { + up = &dev->hub->ports[port-1]; + err = usbd_get_port_status(dev, port, &up->status); + if (err) { + DPRINTF(("uhub_explore: get port status failed, " + "error=%s\n", usbd_errstr(err))); + continue; + } + status = UGETW(up->status.wPortStatus); + change = UGETW(up->status.wPortChange); + DEVPRINTFN(3,(sc->sc_dev, + "uhub_explore: port %d status 0x%04x 0x%04x\n", port, + status, change)); + if (change & UPS_C_PORT_ENABLED) { + DPRINTF(("uhub_explore: C_PORT_ENABLED 0x%x\n", change)); + usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE); + if (change & UPS_C_CONNECT_STATUS) { + /* Ignore the port error if the device + vanished. */ + } else if (status & UPS_PORT_ENABLED) { + device_printf(sc->sc_dev, + "illegal enable change, port %d\n", port); + } else { + /* Port error condition. */ + if (up->restartcnt) /* no message first time */ + device_printf(sc->sc_dev, + "port error, restarting port %d\n", + port); + + if (up->restartcnt++ < USBD_RESTART_MAX) + goto disco; + else + device_printf(sc->sc_dev, + "port error, giving up port %d\n", + port); + } + } + if (!(change & UPS_C_CONNECT_STATUS)) { + DPRINTFN(3,("uhub_explore: port=%d !C_CONNECT_" + "STATUS\n", port)); + /* No status change, just do recursive explore. */ + if (up->device != NULL && up->device->hub != NULL) + up->device->hub->explore(up->device); +#if 0 && defined(DIAGNOSTIC) + if (up->device == NULL && + (status & UPS_CURRENT_CONNECT_STATUS)) + deivce_printf(sc->sc_dev, + "connected, no device\n"); +#endif + continue; + } + + /* We have a connect status change, handle it. */ + + DPRINTF(("uhub_explore: status change hub=%d port=%d\n", + dev->address, port)); + usbd_clear_port_feature(dev, port, UHF_C_PORT_CONNECTION); + /*usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);*/ + /* + * If there is already a device on the port the change status + * must mean that is has disconnected. Looking at the + * current connect status is not enough to figure this out + * since a new unit may have been connected before we handle + * the disconnect. + */ + disco: + if (up->device != NULL) { + /* Disconnected */ + DPRINTF(("uhub_explore: device addr=%d disappeared " + "on port %d\n", up->device->address, port)); + usb_disconnect_port(up, sc->sc_dev); + usbd_clear_port_feature(dev, port, + UHF_C_PORT_CONNECTION); + } + if (!(status & UPS_CURRENT_CONNECT_STATUS)) { + /* Nothing connected, just ignore it. */ + DPRINTFN(3,("uhub_explore: port=%d !CURRENT_CONNECT" + "_STATUS\n", port)); + continue; + } + + /* Connected */ + + if (!(status & UPS_PORT_POWER)) + device_printf(sc->sc_dev, + "strange, connected port %d has no power\n", port); + + /* Wait for maximum device power up time. */ + usbd_delay_ms(dev, USB_PORT_POWERUP_DELAY); + + /* Reset port, which implies enabling it. */ + if (usbd_reset_port(dev, port, &up->status)) { + device_printf(sc->sc_dev, "port %d reset failed\n", + port); + continue; + } + /* Get port status again, it might have changed during reset */ + err = usbd_get_port_status(dev, port, &up->status); + if (err) { + DPRINTF(("uhub_explore: get port status failed, " + "error=%s\n", usbd_errstr(err))); + continue; + } + status = UGETW(up->status.wPortStatus); + change = UGETW(up->status.wPortChange); + if (!(status & UPS_CURRENT_CONNECT_STATUS)) { + /* Nothing connected, just ignore it. */ +#ifdef DIAGNOSTIC + device_printf(sc->sc_dev, + "port %d, device disappeared after reset\n", port); +#endif + continue; + } + +#if 0 + if (UHUB_IS_HIGH_SPEED(sc) && !(status & UPS_HIGH_SPEED)) { + device_printf(sc->sc_dev, + "port %d, transaction translation not implemented," + " low/full speed device ignored\n", port); + continue; + } +#endif + + /* Figure out device speed */ + if (status & UPS_HIGH_SPEED) + speed = USB_SPEED_HIGH; + else if (status & UPS_LOW_SPEED) + speed = USB_SPEED_LOW; + else + speed = USB_SPEED_FULL; + /* Get device info and set its address. */ + err = usbd_new_device(sc->sc_dev, dev->bus, + dev->depth + 1, speed, port, up); + /* XXX retry a few times? */ + if (err) { + DPRINTFN(-1,("uhub_explore: usb_new_device failed, " + "error=%s\n", usbd_errstr(err))); + /* Avoid addressing problems by disabling. */ + /* usbd_reset_port(dev, port, &up->status); */ + + /* + * The unit refused to accept a new address, or had + * some other serious problem. Since we cannot leave + * at 0 we have to disable the port instead. + */ + device_printf(sc->sc_dev, + "device problem (%s), disabling port %d\n", + usbd_errstr(err), port); + usbd_clear_port_feature(dev, port, UHF_PORT_ENABLE); + } else { + /* The port set up succeeded, reset error count. */ + up->restartcnt = 0; + + if (up->device->hub) + up->device->hub->explore(up->device); + } + } + return (USBD_NORMAL_COMPLETION); +} + +/* + * Called from process context when the hub is gone. + * Detach all devices on active ports. + */ +static int +uhub_detach(device_t self) +{ + struct uhub_softc *sc = device_get_softc(self); + struct usbd_hub *hub = sc->sc_hub->hub; + struct usbd_port *rup; + int port, nports; + + DPRINTF(("uhub_detach: sc=%port\n", sc)); + if (hub == NULL) /* Must be partially working */ + return (0); + + usbd_abort_pipe(sc->sc_ipipe); + usbd_close_pipe(sc->sc_ipipe); + + nports = hub->hubdesc.bNbrPorts; + for(port = 0; port < nports; port++) { + rup = &hub->ports[port]; + if (rup->device) + usb_disconnect_port(rup, self); + } + + usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_hub, sc->sc_dev); + + if (hub->ports[0].tt) + free(hub->ports[0].tt, M_USBDEV); + free(hub, M_USBDEV); + sc->sc_hub->hub = NULL; + + return (0); +} + +int +uhub_child_location_str(device_t cbdev, device_t child, char *buf, + size_t buflen) +{ + struct uhub_softc *sc = device_get_softc(cbdev); + usbd_device_handle devhub = sc->sc_hub; + usbd_device_handle dev; + int nports; + int port; + int i; + + mtx_lock(&Giant); + nports = devhub->hub->hubdesc.bNbrPorts; + for (port = 0; port < nports; port++) { + dev = devhub->hub->ports[port].device; + if (dev && dev->subdevs) { + for (i = 0; dev->subdevs[i]; i++) { + if (dev->subdevs[i] == child) { + if (dev->ifacenums == NULL) { + snprintf(buf, buflen, + "port=%i", port); + } else { + snprintf(buf, buflen, + "port=%i interface=%i", + port, dev->ifacenums[i]); + } + goto found_dev; + } + } + } + } + DPRINTFN(0,("uhub_child_location_str: device not on hub\n")); + buf[0] = '\0'; +found_dev: + mtx_unlock(&Giant); + return (0); +} + +int +uhub_child_pnpinfo_str(device_t cbdev, device_t child, char *buf, + size_t buflen) +{ + struct uhub_softc *sc = device_get_softc(cbdev); + usbd_device_handle devhub = sc->sc_hub; + usbd_device_handle dev; + struct usbd_interface *iface; + char serial[128]; + int nports; + int port; + int i; + + mtx_lock(&Giant); + nports = devhub->hub->hubdesc.bNbrPorts; + for (port = 0; port < nports; port++) { + dev = devhub->hub->ports[port].device; + if (dev && dev->subdevs) { + for (i = 0; dev->subdevs[i]; i++) { + if (dev->subdevs[i] == child) { + goto found_dev; + } + } + } + } + DPRINTFN(0,("uhub_child_pnpinfo_str: device not on hub\n")); + buf[0] = '\0'; + mtx_unlock(&Giant); + return (0); + +found_dev: + /* XXX can sleep */ + (void)usbd_get_string(dev, dev->ddesc.iSerialNumber, serial, + sizeof(serial)); + if (dev->ifacenums == NULL) { + snprintf(buf, buflen, "vendor=0x%04x product=0x%04x " + "devclass=0x%02x devsubclass=0x%02x " + "release=0x%04x sernum=\"%s\"", + UGETW(dev->ddesc.idVendor), UGETW(dev->ddesc.idProduct), + dev->ddesc.bDeviceClass, dev->ddesc.bDeviceSubClass, + UGETW(dev->ddesc.bcdDevice), serial); + } else { + iface = &dev->ifaces[dev->ifacenums[i]]; + snprintf(buf, buflen, "vendor=0x%04x product=0x%04x " + "devclass=0x%02x devsubclass=0x%02x " + "release=0x%04x sernum=\"%s\" " + "intclass=0x%02x intsubclass=0x%02x", + UGETW(dev->ddesc.idVendor), UGETW(dev->ddesc.idProduct), + dev->ddesc.bDeviceClass, dev->ddesc.bDeviceSubClass, + UGETW(dev->ddesc.bcdDevice), serial, + iface->idesc->bInterfaceClass, + iface->idesc->bInterfaceSubClass); + } + mtx_unlock(&Giant); + return (0); +} + +/* + * Hub interrupt. + * This an indication that some port has changed status. + * Notify the bus event handler thread that we need + * to be explored again. + */ +void +uhub_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) +{ + struct uhub_softc *sc = addr; + + DPRINTFN(5,("uhub_intr: sc=%p\n", sc)); + if (status == USBD_STALLED) + usbd_clear_endpoint_stall_async(sc->sc_ipipe); + else if (status == USBD_NORMAL_COMPLETION) + usb_needs_explore(sc->sc_hub); +} + +MODULE_DEPEND(uhub, usb, 1, 1, 1); +DRIVER_MODULE(uhub, usb, uhubroot_driver, uhubroot_devclass, 0, 0); +DRIVER_MODULE(uhub, uhub, uhub_driver, uhub_devclass, usbd_driver_load, 0); |
