/*------------------------------------------------------------------------*
* 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);
}
static int
g_modem_detach(device_t dev)
{
struct g_modem_softc *sc = device_get_softc(dev);
DPRINTF("\n");
lockmgr(&sc->sc_lock, LK_EXCLUSIVE);
usb_callout_stop(&sc->sc_callout);
usb_callout_stop(&sc->sc_watchdog);
lockmgr(&sc->sc_lock, LK_RELEASE);
usbd_transfer_unsetup(sc->sc_xfer, G_MODEM_N_TRANSFER);
usb_callout_drain(&sc->sc_callout);
usb_callout_drain(&sc->sc_watchdog);
lockuninit(&sc->sc_lock);
return (0);
}
static int
g_audio_detach(device_t dev)
{
struct g_audio_softc *sc = device_get_softc(dev);
DPRINTF("\n");
mtx_lock(&sc->sc_mtx);
usb_callout_stop(&sc->sc_callout);
usb_callout_stop(&sc->sc_watchdog);
mtx_unlock(&sc->sc_mtx);
usbd_transfer_unsetup(sc->sc_xfer, G_AUDIO_N_TRANSFER);
usb_callout_drain(&sc->sc_callout);
usb_callout_drain(&sc->sc_watchdog);
mtx_destroy(&sc->sc_mtx);
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);
}
void
uether_ifdetach(struct usb_ether *ue)
{
struct ifnet *ifp;
/* wait for any post attach or other command to complete */
usb_proc_drain(&ue->ue_tq);
/* read "ifnet" pointer after taskqueue drain */
ifp = ue->ue_ifp;
if (ifp != NULL) {
/* we are not running any more */
UE_LOCK(ue);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
UE_UNLOCK(ue);
/* drain any callouts */
usb_callout_drain(&ue->ue_watchdog);
/* detach miibus */
if (ue->ue_miibus != NULL) {
mtx_lock(&Giant); /* device_xxx() depends on this */
device_delete_child(ue->ue_dev, ue->ue_miibus);
mtx_unlock(&Giant);
}
/* detach ethernet */
ether_ifdetach(ifp);
/* free interface instance */
if_free(ifp);
/* free sysctl */
sysctl_ctx_free(&ue->ue_sysctl_ctx);
/* free unit */
free_unr(ueunit, ue->ue_unit);
}
/* free taskqueue, if any */
usb_proc_free(&ue->ue_tq);
}
static void
usie_if_stop(struct usie_softc *sc)
{
usb_callout_drain(&sc->sc_if_sync_ch);
mtx_lock(&sc->sc_mtx);
/* usie_cns_req() clears IFF_* flags */
usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]);
/* shutdown device */
usie_if_cmd(sc, USIE_HIP_DOWN);
mtx_unlock(&sc->sc_mtx);
}
static int
xhci_pci_detach(device_t self)
{
struct xhci_softc *sc = device_get_softc(self);
device_t bdev;
if (sc->sc_bus.bdev != NULL) {
bdev = sc->sc_bus.bdev;
device_detach(bdev);
device_delete_child(self, bdev);
}
/* during module unload there are lots of children leftover */
device_delete_children(self);
if (sc->sc_io_res) {
usb_callout_drain(&sc->sc_callout);
xhci_halt_controller(sc);
}
pci_disable_busmaster(self);
if (sc->sc_irq_res && sc->sc_intr_hdl) {
bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
sc->sc_intr_hdl = NULL;
}
if (sc->sc_irq_res) {
if (sc->sc_irq_rid == 1)
pci_release_msi(self);
bus_release_resource(self, SYS_RES_IRQ, sc->sc_irq_rid,
sc->sc_irq_res);
sc->sc_irq_res = NULL;
}
if (sc->sc_io_res) {
bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
sc->sc_io_res);
sc->sc_io_res = NULL;
}
xhci_uninit(sc);
return (0);
}
static int
tegra_xhci_detach(device_t dev)
{
struct tegra_xhci_softc *sc;
struct xhci_softc *xsc;
sc = device_get_softc(dev);
xsc = &sc->xhci_softc;
/* during module unload there are lots of children leftover */
device_delete_children(dev);
if (sc->xhci_inited) {
usb_callout_drain(&xsc->sc_callout);
xhci_halt_controller(xsc);
}
if (xsc->sc_irq_res && xsc->sc_intr_hdl) {
bus_teardown_intr(dev, xsc->sc_irq_res, xsc->sc_intr_hdl);
xsc->sc_intr_hdl = NULL;
}
if (xsc->sc_irq_res) {
bus_release_resource(dev, SYS_RES_IRQ,
rman_get_rid(xsc->sc_irq_res), xsc->sc_irq_res);
xsc->sc_irq_res = NULL;
}
if (xsc->sc_io_res != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(xsc->sc_io_res), xsc->sc_io_res);
xsc->sc_io_res = NULL;
}
if (sc->xhci_inited)
xhci_uninit(xsc);
if (sc->irq_hdl_mbox != NULL)
bus_teardown_intr(dev, sc->irq_res_mbox, sc->irq_hdl_mbox);
if (sc->fw_vaddr != 0)
kmem_free(kernel_arena, sc->fw_vaddr, sc->fw_size);
LOCK_DESTROY(sc);
return (0);
}
void
uether_ifdetach(struct usb_ether *ue)
{
struct ifnet *ifp;
/* wait for any post attach or other command to complete */
usb_proc_drain(&ue->ue_tq);
/* read "ifnet" pointer after taskqueue drain */
ifp = uether_getifp(ue);
if (ifp != NULL) {
/* we are not running any more */
UE_LOCK(ue);
ifp->if_flags &= ~IFF_RUNNING;
UE_UNLOCK(ue);
/* drain any callouts */
usb_callout_drain(&ue->ue_watchdog);
/* detach miibus */
if (ue->ue_miibus != NULL) {
device_delete_child(ue->ue_dev, ue->ue_miibus);
}
/* detach ethernet */
ether_ifdetach(ifp);
/* free sysctl */
sysctl_ctx_free(&ue->ue_sysctl_ctx);
/* free unit */
devfs_clone_bitmap_put(&DEVFS_CLONE_BITMAP(ue), ue->ue_unit);
}
/* free taskqueue, if any */
usb_proc_free(&ue->ue_tq);
}
