/*------------------------------------------------------------------------* * usb_detach *------------------------------------------------------------------------*/ static int usb_detach(device_t dev) { struct usb_bus *bus = device_get_softc(dev); DPRINTF("\n"); if (bus == NULL) { /* was never setup properly */ return (0); } /* Stop power watchdog */ usb_callout_drain(&bus->power_wdog); #if USB_HAVE_ROOT_MOUNT_HOLD /* Let the USB explore process detach all devices. */ usb_root_mount_rel(bus); #endif USB_BUS_LOCK(bus); /* Queue detach job */ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), &bus->detach_msg[0], &bus->detach_msg[1]); /* Wait for detach to complete */ usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), &bus->detach_msg[0], &bus->detach_msg[1]); #if USB_HAVE_UGEN /* Wait for cleanup to complete */ usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), &bus->cleanup_msg[0], &bus->cleanup_msg[1]); #endif USB_BUS_UNLOCK(bus); #if USB_HAVE_PER_BUS_PROCESS /* Get rid of USB callback processes */ usb_proc_free(USB_BUS_GIANT_PROC(bus)); usb_proc_free(USB_BUS_NON_GIANT_ISOC_PROC(bus)); usb_proc_free(USB_BUS_NON_GIANT_BULK_PROC(bus)); /* Get rid of USB explore process */ usb_proc_free(USB_BUS_EXPLORE_PROC(bus)); /* Get rid of control transfer process */ usb_proc_free(USB_BUS_CONTROL_XFER_PROC(bus)); #endif #if USB_HAVE_PF usbpf_detach(bus); #endif return (0); }
/*------------------------------------------------------------------------* * usb_detach *------------------------------------------------------------------------*/ static int usb_detach(device_t dev) { struct usb_bus *bus = device_get_softc(dev); DPRINTF("\n"); if (bus == NULL) { /* was never setup properly */ return (0); } /* Stop power watchdog */ usb_callout_drain(&bus->power_wdog); /* Let the USB explore process detach all devices. */ usb_root_mount_rel(bus); USB_BUS_LOCK(bus); /* Queue detach job */ usb_proc_msignal(&bus->explore_proc, &bus->detach_msg[0], &bus->detach_msg[1]); /* Wait for detach to complete */ usb_proc_mwait(&bus->explore_proc, &bus->detach_msg[0], &bus->detach_msg[1]); #if USB_HAVE_UGEN /* Wait for cleanup to complete */ usb_proc_mwait(&bus->explore_proc, &bus->cleanup_msg[0], &bus->cleanup_msg[1]); #endif USB_BUS_UNLOCK(bus); /* Get rid of USB callback processes */ usb_proc_free(&bus->giant_callback_proc); usb_proc_free(&bus->non_giant_callback_proc); /* Get rid of USB explore process */ usb_proc_free(&bus->explore_proc); /* Get rid of control transfer process */ usb_proc_free(&bus->control_xfer_proc); #if USB_HAVE_PF usbpf_detach(bus); #endif return (0); }