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path: root/drivers/net/wireless/wl12xx/event.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/event.c')
-rw-r--r--drivers/net/wireless/wl12xx/event.c101
1 files changed, 90 insertions, 11 deletions
diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c
index c3c554cd6580..304aaa2ee011 100644
--- a/drivers/net/wireless/wl12xx/event.c
+++ b/drivers/net/wireless/wl12xx/event.c
@@ -133,10 +133,13 @@ static int wl1271_event_ps_report(struct wl1271 *wl,
if (ret < 0)
break;
- /* enable beacon early termination */
- ret = wl1271_acx_bet_enable(wl, true);
- if (ret < 0)
- break;
+ /*
+ * BET has only a minor effect in 5GHz and masks
+ * channel switch IEs, so we only enable BET on 2.4GHz
+ */
+ if (wl->band == IEEE80211_BAND_2GHZ)
+ /* enable beacon early termination */
+ ret = wl1271_acx_bet_enable(wl, true);
if (wl->ps_compl) {
complete(wl->ps_compl);
@@ -168,6 +171,36 @@ static void wl1271_event_rssi_trigger(struct wl1271 *wl,
wl->last_rssi_event = event;
}
+static void wl1271_stop_ba_event(struct wl1271 *wl, u8 ba_allowed)
+{
+ /* Convert the value to bool */
+ wl->ba_allowed = !!ba_allowed;
+
+ /*
+ * Return in case:
+ * there are not BA open or the event indication is to allowed BA
+ */
+ if ((!wl->ba_rx_bitmap) || (wl->ba_allowed))
+ return;
+
+ ieee80211_stop_rx_ba_session(wl->vif, wl->ba_rx_bitmap, wl->bssid);
+}
+
+static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl,
+ u8 enable)
+{
+ if (enable) {
+ /* disable dynamic PS when requested by the firmware */
+ ieee80211_disable_dyn_ps(wl->vif);
+ set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+ } else {
+ ieee80211_enable_dyn_ps(wl->vif);
+ clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+ wl1271_recalc_rx_streaming(wl);
+ }
+
+}
+
static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
{
wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
@@ -181,6 +214,8 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
u32 vector;
bool beacon_loss = false;
bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
+ bool disconnect_sta = false;
+ unsigned long sta_bitmap = 0;
wl1271_event_mbox_dump(mbox);
@@ -211,14 +246,10 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
}
}
- /* disable dynamic PS when requested by the firmware */
if (vector & SOFT_GEMINI_SENSE_EVENT_ID &&
- wl->bss_type == BSS_TYPE_STA_BSS) {
- if (mbox->soft_gemini_sense_info)
- ieee80211_disable_dyn_ps(wl->vif);
- else
- ieee80211_enable_dyn_ps(wl->vif);
- }
+ wl->bss_type == BSS_TYPE_STA_BSS)
+ wl12xx_event_soft_gemini_sense(wl,
+ mbox->soft_gemini_sense_info);
/*
* The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
@@ -252,12 +283,60 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
wl1271_event_rssi_trigger(wl, mbox);
}
+ if ((vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) && !is_ap) {
+ wl1271_debug(DEBUG_EVENT, "BA_SESSION_RX_CONSTRAINT_EVENT_ID. "
+ "ba_allowed = 0x%x", mbox->ba_allowed);
+
+ if (wl->vif)
+ wl1271_stop_ba_event(wl, mbox->ba_allowed);
+ }
+
if ((vector & DUMMY_PACKET_EVENT_ID) && !is_ap) {
wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
if (wl->vif)
wl1271_tx_dummy_packet(wl);
}
+ /*
+ * "TX retries exceeded" has a different meaning according to mode.
+ * In AP mode the offending station is disconnected.
+ */
+ if ((vector & MAX_TX_RETRY_EVENT_ID) && is_ap) {
+ wl1271_debug(DEBUG_EVENT, "MAX_TX_RETRY_EVENT_ID");
+ sta_bitmap |= le16_to_cpu(mbox->sta_tx_retry_exceeded);
+ disconnect_sta = true;
+ }
+
+ if ((vector & INACTIVE_STA_EVENT_ID) && is_ap) {
+ wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
+ sta_bitmap |= le16_to_cpu(mbox->sta_aging_status);
+ disconnect_sta = true;
+ }
+
+ if (is_ap && disconnect_sta) {
+ u32 num_packets = wl->conf.tx.max_tx_retries;
+ struct ieee80211_sta *sta;
+ const u8 *addr;
+ int h;
+
+ for (h = find_first_bit(&sta_bitmap, AP_MAX_LINKS);
+ h < AP_MAX_LINKS;
+ h = find_next_bit(&sta_bitmap, AP_MAX_LINKS, h+1)) {
+ if (!wl1271_is_active_sta(wl, h))
+ continue;
+
+ addr = wl->links[h].addr;
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(wl->vif, addr);
+ if (sta) {
+ wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
+ ieee80211_report_low_ack(sta, num_packets);
+ }
+ rcu_read_unlock();
+ }
+ }
+
if (wl->vif && beacon_loss)
ieee80211_connection_loss(wl->vif);