[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/net/mac80211/pm.c b/ap/os/linux/linux-3.4.x/net/mac80211/pm.c
new file mode 100644
index 0000000..ef8eba1
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/mac80211/pm.c
@@ -0,0 +1,147 @@
+#include <net/mac80211.h>
+#include <net/rtnetlink.h>
+
+#include "ieee80211_i.h"
+#include "mesh.h"
+#include "driver-ops.h"
+#include "led.h"
+
+/* return value indicates whether the driver should be further notified */
+static bool ieee80211_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ ieee80211_sta_quiesce(sdata);
+ return true;
+ case NL80211_IFTYPE_ADHOC:
+ ieee80211_ibss_quiesce(sdata);
+ return true;
+ case NL80211_IFTYPE_MESH_POINT:
+ ieee80211_mesh_quiesce(sdata);
+ return true;
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_MONITOR:
+ /* don't tell driver about this */
+ return false;
+ default:
+ return true;
+ }
+}
+
+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);
+
+ 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, true);
+ }
+ mutex_unlock(&local->sta_mtx);
+ }
+
+ ieee80211_stop_queues_by_reason(hw,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+ /* flush out all packets */
+ synchronize_net();
+
+ drv_flush(local, false);
+
+ 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;
+ return err;
+ } else if (err > 0) {
+ WARN_ON(err != 1);
+ local->wowlan = false;
+ } else {
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ cancel_work_sync(&sdata->work);
+ ieee80211_quiesce(sdata);
+ }
+ goto suspend;
+ }
+ }
+
+ /* disable keys */
+ list_for_each_entry(sdata, &local->interfaces, list)
+ ieee80211_disable_keys(sdata);
+
+ /* 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));
+ }
+
+ mesh_plink_quiesce(sta);
+ }
+ mutex_unlock(&local->sta_mtx);
+
+ /* remove all interfaces */
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ cancel_work_sync(&sdata->work);
+
+ if (!ieee80211_quiesce(sdata))
+ continue;
+
+ if (!ieee80211_sdata_running(sdata))
+ continue;
+
+ /* disable beaconing */
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_BEACON_ENABLED);
+
+ drv_remove_interface(local, sdata);
+ }
+
+ /* 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.
+ */