fishHEADmaster

1 files changed, 145 insertions, 0 deletions

diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
new file mode 100644
index 0000000..3401262
--- /dev/null
+++ b/net/mac80211/pm.c
@@ -0,0 +1,145 @@
+#include <net/mac80211.h>
+#include <net/rtnetlink.h>
+
+#include "ieee80211_i.h"
+#include "mesh.h"
+#include "driver-ops.h"
+#include "led.h"
+
+int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata;
+	struct sta_info *sta;
+
+	if (!local->open_count)
+		goto suspend;
+
+	ieee80211_scan_cancel(local);
+
+	ieee80211_dfs_cac_cancel(local);
+
+	ieee80211_roc_purge(local, NULL);
+
+	ieee80211_del_virtual_monitor(local);
+
+	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
+		mutex_lock(&local->sta_mtx);
+		list_for_each_entry(sta, &local->sta_list, list) {
+			set_sta_flag(sta, WLAN_STA_BLOCK_BA);
+			ieee80211_sta_tear_down_BA_sessions(
+					sta, AGG_STOP_LOCAL_REQUEST);
+		}
+		mutex_unlock(&local->sta_mtx);
+	}
+
+	ieee80211_stop_queues_by_reason(hw,
+					IEEE80211_MAX_QUEUE_MAP,
+					IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+	/* flush out all packets and station cleanup call_rcu()s */
+	synchronize_net();
+	rcu_barrier();
+
+	ieee80211_flush_queues(local, NULL);
+
+	local->quiescing = true;
+	/* make quiescing visible to timers everywhere */
+	mb();
+
+	flush_workqueue(local->workqueue);
+
+	/* Don't try to run timers while suspended. */
+	del_timer_sync(&local->sta_cleanup);
+
+	 /*
+	 * Note that this particular timer doesn't need to be
+	 * restarted at resume.
+	 */
+	cancel_work_sync(&local->dynamic_ps_enable_work);
+	del_timer_sync(&local->dynamic_ps_timer);
+
+	local->wowlan = wowlan && local->open_count;
+	if (local->wowlan) {
+		int err = drv_suspend(local, wowlan);
+		if (err < 0) {
+			local->quiescing = false;
+			local->wowlan = false;
+			if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
+				mutex_lock(&local->sta_mtx);
+				list_for_each_entry(sta,
+						    &local->sta_list, list) {
+					clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
+				}
+				mutex_unlock(&local->sta_mtx);
+			}
+			ieee80211_wake_queues_by_reason(hw,
+					IEEE80211_MAX_QUEUE_MAP,
+					IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+			return err;
+		} else if (err > 0) {
+			WARN_ON(err != 1);
+			return err;
+		} else {
+			goto suspend;
+		}
+	}
+
+	/* tear down aggregation sessions and remove STAs */
+	mutex_lock(&local->sta_mtx);
+	list_for_each_entry(sta, &local->sta_list, list) {
+		if (sta->uploaded) {
+			enum ieee80211_sta_state state;
+
+			state = sta->sta_state;
+			for (; state > IEEE80211_STA_NOTEXIST; state--)
+				WARN_ON(drv_sta_state(local, sta->sdata, sta,
+						      state, state - 1));
+		}
+	}
+	mutex_unlock(&local->sta_mtx);
+
+	/* remove all interfaces that were created in the driver */
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!ieee80211_sdata_running(sdata) ||
+		    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+		    sdata->vif.type == NL80211_IFTYPE_MONITOR)
+			continue;
+
+		drv_remove_interface(local, sdata);
+	}
+
+	/*
+	 * We disconnected on all interfaces before suspend, all channel
+	 * contexts should be released.
+	 */
+	WARN_ON(!list_empty(&local->chanctx_list));
+
+	/* stop hardware - this must stop RX */
+	if (local->open_count)
+		ieee80211_stop_device(local);
+
+ suspend:
+	local->suspended = true;
+	/* need suspended to be visible before quiescing is false */
+	barrier();
+	local->quiescing = false;
+
+	return 0;
+}
+
+/*
+ * __ieee80211_resume() is a static inline which just calls
+ * ieee80211_reconfig(), which is also needed for hardware
+ * hang/firmware failure/etc. recovery.
+ */
+
+void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
+				    struct cfg80211_wowlan_wakeup *wakeup,
+				    gfp_t gfp)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+	cfg80211_report_wowlan_wakeup(&sdata->wdev, wakeup, gfp);
+}
+EXPORT_SYMBOL(ieee80211_report_wowlan_wakeup);