mac80211: add support for HW scheduled scan

[deliverable/linux.git] / include / net / mac80211.h

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9e5542794b95d174c1ff19a9699ffd29c1f42f21..62a1c225b7cb30ee4166bbd6993d6cf978730fb1 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -537,6 +537,21 @@ struct ieee80211_tx_info {
        };
 };
 
+/**
+ * ieee80211_sched_scan_ies - scheduled scan IEs
+ *
+ * This structure is used to pass the appropriate IEs to be used in scheduled
+ * scans for all bands.  It contains both the IEs passed from the userspace
+ * and the ones generated by mac80211.
+ *
+ * @ie: array with the IEs for each supported band
+ * @len: array with the total length of the IEs for each band
+ */
+struct ieee80211_sched_scan_ies {
+       u8 *ie[IEEE80211_NUM_BANDS];
+       size_t len[IEEE80211_NUM_BANDS];
+};
+
 static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
 {
        return (struct ieee80211_tx_info *)skb->cb;
@@ -1693,6 +1708,13 @@ enum ieee80211_ampdu_mlme_action {
  *     any error unless this callback returned a negative error code.
  *     The callback can sleep.
  *
+ * @sched_scan_start: Ask the hardware to start scanning repeatedly at
+ *     specific intervals.  The driver must call the
+ *     ieee80211_sched_scan_results() function whenever it finds results.
+ *     This process will continue until sched_scan_stop is called.
+ *
+ * @sched_scan_stop: Tell the hardware to stop an ongoing scheduled scan.
+ *
  * @sw_scan_start: Notifier function that is called just before a software scan
  *     is started. Can be NULL, if the driver doesn't need this notification.
  *     The callback can sleep.
@@ -1877,6 +1899,12 @@ struct ieee80211_ops {
                                u32 iv32, u16 *phase1key);
        int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                       struct cfg80211_scan_request *req);
+       int (*sched_scan_start)(struct ieee80211_hw *hw,
+                               struct ieee80211_vif *vif,
+                               struct cfg80211_sched_scan_request *req,
+                               struct ieee80211_sched_scan_ies *ies);
+       void (*sched_scan_stop)(struct ieee80211_hw *hw,
+                              struct ieee80211_vif *vif);
        void (*sw_scan_start)(struct ieee80211_hw *hw);
        void (*sw_scan_complete)(struct ieee80211_hw *hw);
        int (*get_stats)(struct ieee80211_hw *hw,
@@ -2593,6 +2621,28 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw);
  */
 void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted);
 
+/**
+ * ieee80211_sched_scan_results - got results from scheduled scan
+ *
+ * When a scheduled scan is running, this function needs to be called by the
+ * driver whenever there are new scan results available.
+ *
+ * @hw: the hardware that is performing scheduled scans
+ */
+void ieee80211_sched_scan_results(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_sched_scan_stopped - inform that the scheduled scan has stopped
+ *
+ * When a scheduled scan is running, this function can be called by
+ * the driver if it needs to stop the scan to perform another task.
+ * Usual scenarios are drivers that cannot continue the scheduled scan
+ * while associating, for instance.
+ *
+ * @hw: the hardware that is performing scheduled scans
+ */
+void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw);
+
 /**
  * ieee80211_iterate_active_interfaces - iterate active interfaces
  *