static int wl1251_event_ps_report(struct wl1251 *wl,
struct event_mailbox *mbox)
{
int ret = 0;
wl1251_debug(DEBUG_EVENT, "ps status: %x", mbox->ps_status);
switch (mbox->ps_status) {
case EVENT_ENTER_POWER_SAVE_FAIL:
wl1251_debug(DEBUG_PSM, "PSM entry failed");
if (wl->station_mode != STATION_POWER_SAVE_MODE) {
/* remain in active mode */
wl->psm_entry_retry = 0;
break;
}
if (wl->psm_entry_retry < WL1251_PSM_ENTRY_RETRIES) {
wl->psm_entry_retry++;
ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
} else {
wl1251_error("Power save entry failed, giving up");
wl->psm_entry_retry = 0;
}
break;
case EVENT_ENTER_POWER_SAVE_SUCCESS:
case EVENT_EXIT_POWER_SAVE_FAIL:
case EVENT_EXIT_POWER_SAVE_SUCCESS:
default:
wl->psm_entry_retry = 0;
break;
}
return 0;
}
static int wl1251_event_ps_report(struct wl1251 *wl,
struct event_mailbox *mbox)
{
int ret = 0;
wl1251_debug(DEBUG_EVENT, "ps status: %x", mbox->ps_status);
switch (mbox->ps_status) {
case ENTER_POWER_SAVE_FAIL:
if (!wl->psm) {
wl->ps_entry_retry = 0;
break;
}
if (wl->ps_entry_retry < WL1251_PS_ENTRY_RETRIES) {
ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
wl->ps_entry_retry++;
} else {
wl1251_error("Power save entry failed, giving up");
wl->ps_entry_retry = 0;
}
break;
case ENTER_POWER_SAVE_SUCCESS:
default:
wl->ps_entry_retry = 0;
break;
}
return 0;
}
static int wl1251_event_scan_complete(struct wl1251 *wl,
struct event_mailbox *mbox)
{
int ret = 0;
wl1251_debug(DEBUG_EVENT, "status: 0x%x, channels: %d",
mbox->scheduled_scan_status,
mbox->scheduled_scan_channels);
if (wl->scanning) {
ieee80211_scan_completed(wl->hw, false);
wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan completed");
wl->scanning = false;
if (wl->hw->conf.flags & IEEE80211_CONF_IDLE)
ret = wl1251_ps_set_mode(wl, STATION_IDLE);
}
return ret;
}
static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox)
{
int ret;
u32 vector;
wl1251_event_mbox_dump(mbox);
vector = mbox->events_vector & ~(mbox->events_mask);
wl1251_debug(DEBUG_EVENT, "vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
ret = wl1251_event_scan_complete(wl, mbox);
if (ret < 0)
return ret;
}
if (vector & BSS_LOSE_EVENT_ID) {
wl1251_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
if (wl->psm_requested &&
wl->station_mode != STATION_ACTIVE_MODE) {
ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
if (ret < 0)
return ret;
}
}
if (vector & PS_REPORT_EVENT_ID) {
wl1251_debug(DEBUG_EVENT, "PS_REPORT_EVENT");
ret = wl1251_event_ps_report(wl, mbox);
if (ret < 0)
return ret;
}
if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID) {
wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT");
/* indicate to the stack, that beacons have been lost */
if (wl->vif && wl->vif->type == NL80211_IFTYPE_STATION)
ieee80211_beacon_loss(wl->vif);
}
if (vector & REGAINED_BSS_EVENT_ID) {
if (wl->psm_requested) {
ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
if (ret < 0)
return ret;
}
}
if (wl->vif && wl->rssi_thold) {
if (vector & ROAMING_TRIGGER_LOW_RSSI_EVENT_ID) {
wl1251_debug(DEBUG_EVENT,
"ROAMING_TRIGGER_LOW_RSSI_EVENT");
ieee80211_cqm_rssi_notify(wl->vif,
NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
GFP_KERNEL);
}
if (vector & ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID) {
wl1251_debug(DEBUG_EVENT,
"ROAMING_TRIGGER_REGAINED_RSSI_EVENT");
ieee80211_cqm_rssi_notify(wl->vif,
NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
GFP_KERNEL);
}
}
return 0;
}
static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox)
{
int ret;
u32 vector;
vector = mbox->events_vector & ~(mbox->events_mask);
if (vector & SCAN_COMPLETE_EVENT_ID) {
ret = wl1251_event_scan_complete(wl, mbox);
if (ret < 0)
return ret;
}
if (vector & BSS_LOSE_EVENT_ID) {
wl1251_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
if (wl->psm_requested && wl->psm) {
ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
if (ret < 0)
return ret;
}
}
if (vector & PS_REPORT_EVENT_ID) {
wl1251_debug(DEBUG_EVENT, "PS_REPORT_EVENT_ID");
ret = wl1251_event_ps_report(wl, mbox);
if (ret < 0)
return ret;
}
if (wl->vif && (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID)) {
wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT");
/* need to unlock mutex to avoid deadlocking with rtnl */
mutex_unlock(&wl->mutex);
/* indicate to the stack, that beacons have been lost */
ieee80211_beacon_loss(wl->vif);
mutex_lock(&wl->mutex);
}
if (vector & REGAINED_BSS_EVENT_ID) {
if (wl->psm_requested) {
ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
if (ret < 0)
return ret;
}
}
if (wl->vif && (vector & ROAMING_TRIGGER_LOW_RSSI_EVENT_ID)) {
wl1251_debug(DEBUG_EVENT, "ROAMING_TRIGGER_LOW_RSSI_EVENT");
ieee80211_rssi_changed(wl->vif, IEEE80211_RSSI_STATE_LOW);
}
if (wl->vif && (vector & ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID)) {
wl1251_debug(DEBUG_EVENT,
"ROAMING_TRIGGER_REGAINED_RSSI_EVENT");
ieee80211_rssi_changed(wl->vif, IEEE80211_RSSI_STATE_HIGH);
}
return 0;
}