/**
* brcmf_fweh_handle_if_event() - handle IF event.
*
* @drvr: driver information object.
* @item: queue entry.
* @ifpp: interface object (may change upon ADD action).
*/
static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
struct brcmf_event_msg *emsg,
void *data)
{
struct brcmf_if_event *ifevent = data;
struct brcmf_if *ifp;
bool is_p2pdev;
int err = 0;
brcmf_dbg(EVENT, "action: %u ifidx: %u bsscfgidx: %u flags: %u role: %u\n",
ifevent->action, ifevent->ifidx, ifevent->bsscfgidx,
ifevent->flags, ifevent->role);
/* The P2P Device interface event must not be ignored contrary to what
* firmware tells us. Older firmware uses p2p noif, with sta role.
* This should be accepted when p2pdev_setup is ongoing. TDLS setup will
* use the same ifevent and should be ignored.
*/
is_p2pdev = ((ifevent->flags & BRCMF_E_IF_FLAG_NOIF) &&
(ifevent->role == BRCMF_E_IF_ROLE_P2P_CLIENT ||
((ifevent->role == BRCMF_E_IF_ROLE_STA) &&
(drvr->fweh.p2pdev_setup_ongoing))));
if (!is_p2pdev && (ifevent->flags & BRCMF_E_IF_FLAG_NOIF)) {
brcmf_dbg(EVENT, "event can be ignored\n");
return;
}
if (ifevent->ifidx >= BRCMF_MAX_IFS) {
brcmf_err("invalid interface index: %u\n", ifevent->ifidx);
return;
}
ifp = drvr->iflist[ifevent->bsscfgidx];
if (ifevent->action == BRCMF_E_IF_ADD) {
brcmf_dbg(EVENT, "adding %s (%pM)\n", emsg->ifname,
emsg->addr);
ifp = brcmf_add_if(drvr, ifevent->bsscfgidx, ifevent->ifidx,
is_p2pdev, emsg->ifname, emsg->addr);
if (IS_ERR(ifp))
return;
if (!is_p2pdev)
brcmf_fws_add_interface(ifp);
if (!drvr->fweh.evt_handler[BRCMF_E_IF])
if (brcmf_net_attach(ifp, false) < 0)
return;
}
if (ifp && ifevent->action == BRCMF_E_IF_CHANGE)
brcmf_fws_reset_interface(ifp);
err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data);
if (ifp && ifevent->action == BRCMF_E_IF_DEL) {
bool armed = brcmf_cfg80211_vif_event_armed(drvr->config);
/* Default handling in case no-one waits for this event */
if (!armed)
brcmf_remove_interface(ifp, false);
}
}
/**
* brcmf_fweh_handle_if_event() - handle IF event.
*
* @drvr: driver information object.
* @item: queue entry.
* @ifpp: interface object (may change upon ADD action).
*/
static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
struct brcmf_event_msg *emsg,
void *data)
{
struct brcmf_if_event *ifevent = data;
struct brcmf_if *ifp;
int err = 0;
brcmf_dbg(EVENT, "action: %u idx: %u bsscfg: %u flags: %u role: %u\n",
ifevent->action, ifevent->ifidx, ifevent->bssidx,
ifevent->flags, ifevent->role);
/* The P2P Device interface event must not be ignored
* contrary to what firmware tells us. The only way to
* distinguish the P2P Device is by looking at the ifidx
* and bssidx received.
*/
if (!(ifevent->ifidx == 0 && ifevent->bssidx == 1) &&
(ifevent->flags & BRCMF_E_IF_FLAG_NOIF)) {
brcmf_dbg(EVENT, "event can be ignored\n");
return;
}
if (ifevent->ifidx >= BRCMF_MAX_IFS) {
brcmf_err("invalid interface index: %u\n",
ifevent->ifidx);
return;
}
ifp = drvr->iflist[ifevent->bssidx];
if (ifevent->action == BRCMF_E_IF_ADD) {
brcmf_dbg(EVENT, "adding %s (%pM)\n", emsg->ifname,
emsg->addr);
ifp = brcmf_add_if(drvr, ifevent->bssidx, ifevent->ifidx,
emsg->ifname, emsg->addr);
if (IS_ERR(ifp))
return;
brcmf_fws_add_interface(ifp);
if (!drvr->fweh.evt_handler[BRCMF_E_IF])
if (brcmf_net_attach(ifp, false) < 0)
return;
}
if (ifp && ifevent->action == BRCMF_E_IF_CHANGE)
brcmf_fws_reset_interface(ifp);
err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data);
if (ifp && ifevent->action == BRCMF_E_IF_DEL)
brcmf_remove_interface(drvr, ifevent->bssidx);
}
void brcmf_detach(struct device *dev)
{
s32 i;
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
struct brcmf_pub *drvr = bus_if->drvr;
brcmf_dbg(TRACE, "Enter\n");
if (drvr == NULL)
return;
#ifdef CONFIG_INET
unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
#endif
#if IS_ENABLED(CONFIG_IPV6)
unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
#endif
/* stop firmware event handling */
brcmf_fweh_detach(drvr);
if (drvr->config)
brcmf_p2p_detach(&drvr->config->p2p);
brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
/* make sure primary interface removed last */
for (i = BRCMF_MAX_IFS-1; i > -1; i--)
brcmf_remove_interface(drvr->iflist[i], false);
brcmf_cfg80211_detach(drvr->config);
brcmf_fws_deinit(drvr);
brcmf_bus_detach(drvr);
brcmf_proto_detach(drvr);
brcmf_debug_detach(drvr);
bus_if->drvr = NULL;
kfree(drvr);
}
