mac80211: allow drivers to request DTIM period
Some features require knowing the DTIM period
before associating. This implements the ability
to wait for a beacon in mac80211 before assoc
to provide this value. It is optional since
most likely not all drivers will need this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c7027ef..f85fc8a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -194,7 +194,9 @@
* if the hardware cannot handle this it must set the
* IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE hardware flag
* @dtim_period: num of beacons before the next DTIM, for beaconing,
- * not valid in station mode (cf. hw conf ps_dtim_period)
+ * valid in station mode only while @assoc is true and if also
+ * requested by %IEEE80211_HW_NEED_DTIM_PERIOD (cf. also hw conf
+ * @ps_dtim_period)
* @timestamp: beacon timestamp
* @beacon_int: beacon interval
* @assoc_capability: capabilities taken from assoc resp
@@ -1027,6 +1029,9 @@
* connection quality related parameters, such as the RSSI level and
* provide notifications if configured trigger levels are reached.
*
+ * @IEEE80211_HW_NEED_DTIM_PERIOD:
+ * This device needs to know the DTIM period for the BSS before
+ * associating.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1036,7 +1041,7 @@
IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4,
IEEE80211_HW_SIGNAL_UNSPEC = 1<<5,
IEEE80211_HW_SIGNAL_DBM = 1<<6,
- /* use this hole */
+ IEEE80211_HW_NEED_DTIM_PERIOD = 1<<7,
IEEE80211_HW_SPECTRUM_MGMT = 1<<8,
IEEE80211_HW_AMPDU_AGGREGATION = 1<<9,
IEEE80211_HW_SUPPORTS_PS = 1<<10,