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Differential D31831 Diff 94679 sys/dev/usb/controller/usb_controller.c

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sys/dev/usb/controller/usb_controller.c

Show First 20 Lines • Show All 432 Lines • ▼ Show 20 Linesusb_bus_detach(struct usb_proc_msg *pm)
bus = ((struct usb_bus_msg *)pm)->bus; bus = ((struct usb_bus_msg *)pm)->bus;
udev = bus->devices[USB_ROOT_HUB_ADDR]; udev = bus->devices[USB_ROOT_HUB_ADDR];
dev = bus->bdev; dev = bus->bdev;
/* clear the softc */ /* clear the softc */
device_set_softc(dev, NULL); device_set_softc(dev, NULL);
USB_BUS_UNLOCK(bus); USB_BUS_UNLOCK(bus);
/* detach children first */ /* detach children first */
mtx_lock(&Giant); bus_topo_lock();
bus_generic_detach(dev); bus_generic_detach(dev);
mtx_unlock(&Giant); bus_topo_unlock();
/* /*
* Free USB device and all subdevices, if any. * Free USB device and all subdevices, if any.
*/ */
usb_free_device(udev, 0); usb_free_device(udev, 0);
USB_BUS_LOCK(bus); USB_BUS_LOCK(bus);
/* clear bdev variable last */ /* clear bdev variable last */
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/*------------------------------------------------------------------------* /*------------------------------------------------------------------------*
* usb_attach_sub * usb_attach_sub
* *
* This function creates a thread which runs the USB attach code. * This function creates a thread which runs the USB attach code.
*------------------------------------------------------------------------*/ *------------------------------------------------------------------------*/
static void static void
usb_attach_sub(device_t dev, struct usb_bus *bus) usb_attach_sub(device_t dev, struct usb_bus *bus)
{ {
mtx_lock(&Giant); bus_topo_lock();
if (usb_devclass_ptr == NULL) if (usb_devclass_ptr == NULL)
usb_devclass_ptr = devclass_find("usbus"); usb_devclass_ptr = devclass_find("usbus");
mtx_unlock(&Giant); bus_topo_unlock();
#if USB_HAVE_PF #if USB_HAVE_PF
usbpf_attach(bus); usbpf_attach(bus);
#endif #endif
/* Initialise USB process messages */ /* Initialise USB process messages */
bus->explore_msg[0].hdr.pm_callback = &usb_bus_explore; bus->explore_msg[0].hdr.pm_callback = &usb_bus_explore;
bus->explore_msg[0].bus = bus; bus->explore_msg[0].bus = bus;
bus->explore_msg[1].hdr.pm_callback = &usb_bus_explore; bus->explore_msg[1].hdr.pm_callback = &usb_bus_explore;
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