void
xb_suspend_comms(device_t dev)
{
int evtchn;
evtchn = xen_start_info.store_evtchn;
hypervisor_mask_event(evtchn);
event_remove_handler(evtchn, wake_waiting, NULL);
aprint_verbose_dev(dev, "removed event channel %d\n", evtchn);
}
static int
xennet_xenbus_detach(device_t self, int flags)
{
struct xennet_xenbus_softc *sc = device_private(self);
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
int s0, s1;
RING_IDX i;
DPRINTF(("%s: xennet_xenbus_detach\n", device_xname(self)));
s0 = splnet();
xennet_stop(ifp, 1);
/* wait for pending TX to complete, and collect pending RX packets */
xennet_handler(sc);
while (sc->sc_tx_ring.sring->rsp_prod != sc->sc_tx_ring.rsp_cons) {
tsleep(xennet_xenbus_detach, PRIBIO, "xnet_detach", hz/2);
xennet_handler(sc);
}
xennet_free_rx_buffer(sc);
s1 = splvm();
for (i = 0; i < NET_RX_RING_SIZE; i++) {
struct xennet_rxreq *rxreq = &sc->sc_rxreqs[i];
uvm_km_free(kernel_map, rxreq->rxreq_va, PAGE_SIZE,
UVM_KMF_WIRED);
}
splx(s1);
ether_ifdetach(ifp);
if_detach(ifp);
while (xengnt_status(sc->sc_tx_ring_gntref)) {
tsleep(xennet_xenbus_detach, PRIBIO, "xnet_txref", hz/2);
}
xengnt_revoke_access(sc->sc_tx_ring_gntref);
uvm_km_free(kernel_map, (vaddr_t)sc->sc_tx_ring.sring, PAGE_SIZE,
UVM_KMF_WIRED);
while (xengnt_status(sc->sc_rx_ring_gntref)) {
tsleep(xennet_xenbus_detach, PRIBIO, "xnet_rxref", hz/2);
}
xengnt_revoke_access(sc->sc_rx_ring_gntref);
uvm_km_free(kernel_map, (vaddr_t)sc->sc_rx_ring.sring, PAGE_SIZE,
UVM_KMF_WIRED);
softint_disestablish(sc->sc_softintr);
event_remove_handler(sc->sc_evtchn, &xennet_handler, sc);
splx(s0);
DPRINTF(("%s: xennet_xenbus_detach done\n", device_xname(self)));
return 0;
}
/* Set up interrupt handler off store event channel. */
int
xb_init_comms(struct device *dev)
{
int err;
if (xenbus_irq)
event_remove_handler(xenbus_irq, wake_waiting, NULL);
err = event_set_handler(xen_start_info.store_evtchn, wake_waiting,
NULL, IPL_TTY, "xenbus");
if (err) {
printf("XENBUS request irq failed %i\n", err);
return err;
}
xenbus_irq = xen_start_info.store_evtchn;
printf("%s: using event channel %d\n", dev->dv_xname, xenbus_irq);
hypervisor_enable_event(xenbus_irq);
return 0;
}
static bool
xencons_suspend(device_t dev, const pmf_qual_t *qual) {
int evtch;
/* dom0 console should not be suspended */
if (!xendomain_is_dom0()) {
evtch = xen_start_info.console_evtchn;
hypervisor_mask_event(evtch);
if (event_remove_handler(evtch, xencons_handler,
xencons_console_device) != 0) {
aprint_error_dev(dev,
"can't remove handler: xencons_handler\n");
}
aprint_verbose_dev(dev, "removed event channel %d\n", evtch);
}
return true;
}
static void point_based_stop(void)
{
event_remove_handler(EVENT_BIRTHPOINTS, point_based_points, NULL);
event_remove_handler(EVENT_STATS, point_based_stats, NULL);
event_remove_handler(EVENT_GOLD, point_based_misc, NULL);
}
void deactivate(void) {
SDL_DestroyTexture(title_1.texture);
SDL_DestroyTexture(title_2.texture);
for (int i = 0; i < 3; ++i) SDL_DestroyTexture(rotator[i].texture);
event_remove_handler(&any_key_handler);
}
