1 files changed, 304 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c
new file mode 100644
index 0000000..929d79c
--- /dev/null
+++ b/drivers/net/wireless/ti/wlcore/event.c
@@ -0,0 +1,304 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/export.h>
+#include "wlcore.h"
+#include "debug.h"
+#include "io.h"
+#include "event.h"
+#include "ps.h"
+#include "scan.h"
+#include "wl12xx_80211.h"
+
+void wlcore_event_rssi_trigger(struct wl1271 *wl, s8 *metric_arr)
+{
+	struct wl12xx_vif *wlvif;
+	struct ieee80211_vif *vif;
+	enum nl80211_cqm_rssi_threshold_event event;
+	s8 metric = metric_arr[0];
+
+	wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric);
+
+	/* TODO: check actual multi-role support */
+	wl12xx_for_each_wlvif_sta(wl, wlvif) {
+		if (metric <= wlvif->rssi_thold)
+			event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
+		else
+			event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
+
+		vif = wl12xx_wlvif_to_vif(wlvif);
+		if (event != wlvif->last_rssi_event)
+			ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
+		wlvif->last_rssi_event = event;
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_rssi_trigger);
+
+static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif)
+{
+	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
+
+	if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
+		u8 hlid = wlvif->sta.hlid;
+		if (!wl->links[hlid].ba_bitmap)
+			return;
+		ieee80211_stop_rx_ba_session(vif, wl->links[hlid].ba_bitmap,
+					     vif->bss_conf.bssid);
+	} else {
+		u8 hlid;
+		struct wl1271_link *lnk;
+		for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
+				 WL12XX_MAX_LINKS) {
+			lnk = &wl->links[hlid];
+			if (!lnk->ba_bitmap)
+				continue;
+
+			ieee80211_stop_rx_ba_session(vif,
+						     lnk->ba_bitmap,
+						     lnk->addr);
+		}
+	}
+}
+
+void wlcore_event_soft_gemini_sense(struct wl1271 *wl, u8 enable)
+{
+	struct wl12xx_vif *wlvif;
+
+	if (enable) {
+		set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+	} else {
+		clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+		wl12xx_for_each_wlvif_sta(wl, wlvif) {
+			wl1271_recalc_rx_streaming(wl, wlvif);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_soft_gemini_sense);
+
+void wlcore_event_sched_scan_completed(struct wl1271 *wl,
+				       u8 status)
+{
+	wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT (status 0x%0x)",
+		     status);
+
+	if (wl->sched_vif) {
+		ieee80211_sched_scan_stopped(wl->hw);
+		wl->sched_vif = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_sched_scan_completed);
+
+void wlcore_event_ba_rx_constraint(struct wl1271 *wl,
+				   unsigned long roles_bitmap,
+				   unsigned long allowed_bitmap)
+{
+	struct wl12xx_vif *wlvif;
+
+	wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx allowed=0x%lx",
+		     __func__, roles_bitmap, allowed_bitmap);
+
+	wl12xx_for_each_wlvif(wl, wlvif) {
+		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
+		    !test_bit(wlvif->role_id , &roles_bitmap))
+			continue;
+
+		wlvif->ba_allowed = !!test_bit(wlvif->role_id,
+					       &allowed_bitmap);
+		if (!wlvif->ba_allowed)
+			wl1271_stop_ba_event(wl, wlvif);
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_ba_rx_constraint);
+
+void wlcore_event_channel_switch(struct wl1271 *wl,
+				 unsigned long roles_bitmap,
+				 bool success)
+{
+	struct wl12xx_vif *wlvif;
+	struct ieee80211_vif *vif;
+
+	wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx success=%d",
+		     __func__, roles_bitmap, success);
+
+	wl12xx_for_each_wlvif_sta(wl, wlvif) {
+		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
+		    !test_bit(wlvif->role_id , &roles_bitmap))
+			continue;
+
+		if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
+					&wlvif->flags))
+			continue;
+
+		vif = wl12xx_wlvif_to_vif(wlvif);
+
+		ieee80211_chswitch_done(vif, success);
+		cancel_delayed_work(&wlvif->channel_switch_work);
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_channel_switch);
+
+void wlcore_event_dummy_packet(struct wl1271 *wl)
+{
+	wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
+	wl1271_tx_dummy_packet(wl);
+}
+EXPORT_SYMBOL_GPL(wlcore_event_dummy_packet);
+
+static void wlcore_disconnect_sta(struct wl1271 *wl, unsigned long sta_bitmap)
+{
+	u32 num_packets = wl->conf.tx.max_tx_retries;
+	struct wl12xx_vif *wlvif;
+	struct ieee80211_vif *vif;
+	struct ieee80211_sta *sta;
+	const u8 *addr;
+	int h;
+
+	for_each_set_bit(h, &sta_bitmap, WL12XX_MAX_LINKS) {
+		bool found = false;
+		/* find the ap vif connected to this sta */
+		wl12xx_for_each_wlvif_ap(wl, wlvif) {
+			if (!test_bit(h, wlvif->ap.sta_hlid_map))
+				continue;
+			found = true;
+			break;
+		}
+		if (!found)
+			continue;
+
+		vif = wl12xx_wlvif_to_vif(wlvif);
+		addr = wl->links[h].addr;
+
+		rcu_read_lock();
+		sta = ieee80211_find_sta(vif, addr);
+		if (sta) {
+			wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
+			ieee80211_report_low_ack(sta, num_packets);
+		}
+		rcu_read_unlock();
+	}
+}
+
+void wlcore_event_max_tx_failure(struct wl1271 *wl, unsigned long sta_bitmap)
+{
+	wl1271_debug(DEBUG_EVENT, "MAX_TX_FAILURE_EVENT_ID");
+	wlcore_disconnect_sta(wl, sta_bitmap);
+}
+EXPORT_SYMBOL_GPL(wlcore_event_max_tx_failure);
+
+void wlcore_event_inactive_sta(struct wl1271 *wl, unsigned long sta_bitmap)
+{
+	wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
+	wlcore_disconnect_sta(wl, sta_bitmap);
+}
+EXPORT_SYMBOL_GPL(wlcore_event_inactive_sta);
+
+void wlcore_event_roc_complete(struct wl1271 *wl)
+{
+	wl1271_debug(DEBUG_EVENT, "REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID");
+	if (wl->roc_vif)
+		ieee80211_ready_on_channel(wl->hw);
+}
+EXPORT_SYMBOL_GPL(wlcore_event_roc_complete);
+
+void wlcore_event_beacon_loss(struct wl1271 *wl, unsigned long roles_bitmap)
+{
+	/*
+	 * We are HW_MONITOR device. On beacon loss - queue
+	 * connection loss work. Cancel it on REGAINED event.
+	 */
+	struct wl12xx_vif *wlvif;
+	struct ieee80211_vif *vif;
+	int delay = wl->conf.conn.synch_fail_thold *
+				wl->conf.conn.bss_lose_timeout;
+
+	wl1271_info("Beacon loss detected. roles:0x%lx", roles_bitmap);
+
+	wl12xx_for_each_wlvif_sta(wl, wlvif) {
+		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
+		    !test_bit(wlvif->role_id , &roles_bitmap))
+			continue;
+
+		vif = wl12xx_wlvif_to_vif(wlvif);
+
+		/* don't attempt roaming in case of p2p */
+		if (wlvif->p2p) {
+			ieee80211_connection_loss(vif);
+			continue;
+		}
+
+		/*
+		 * if the work is already queued, it should take place.
+		 * We don't want to delay the connection loss
+		 * indication any more.
+		 */
+		ieee80211_queue_delayed_work(wl->hw,
+					     &wlvif->connection_loss_work,
+					     msecs_to_jiffies(delay));
+
+		ieee80211_cqm_rssi_notify(
+				vif,
+				NL80211_CQM_RSSI_BEACON_LOSS_EVENT,
+				GFP_KERNEL);
+	}
+}
+EXPORT_SYMBOL_GPL(wlcore_event_beacon_loss);
+
+int wl1271_event_unmask(struct wl1271 *wl)
+{
+	int ret;
+
+	ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
+{
+	int ret;
+
+	wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
+
+	if (mbox_num > 1)
+		return -EINVAL;
+
+	/* first we read the mbox descriptor */
+	ret = wlcore_read(wl, wl->mbox_ptr[mbox_num], wl->mbox,
+			  wl->mbox_size, false);
+	if (ret < 0)
+		return ret;
+
+	/* process the descriptor */
+	ret = wl->ops->process_mailbox_events(wl);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * TODO: we just need this because one bit is in a different
+	 * place.  Is there any better way?
+	 */
+	ret = wl->ops->ack_event(wl);
+
+	return ret;
+}