mac80211: pass dtim_period to low level driver

This patch adds the dtim_period in ieee80211_bss_conf, this allows the low
level driver to know the dtim_period, and to plan power save accordingly.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 16 insertions, 1 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index a1630ba0b87c..7f4df7c7659d 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -506,6 +506,19 @@ struct ieee80211_channel_sw_ie {
         u8 count;
 } __attribute__ ((packed));
 
+/**
+ * struct ieee80211_tim
+ *
+ * This structure refers to "Traffic Indication Map information element"
+ */
+struct ieee80211_tim_ie {
+        u8 dtim_count;
+        u8 dtim_period;
+        u8 bitmap_ctrl;
+        /* variable size: 1 - 251 bytes */
+        u8 virtual_map[0];
+} __attribute__ ((packed));
+
 struct ieee80211_mgmt {
         __le16 frame_control;
         __le16 duration;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index b52721008be8..9d99f2e0a204 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -177,9 +177,10 @@ enum ieee80211_bss_change {
  * @aid: association ID number, valid only when @assoc is true
  * @use_cts_prot: use CTS protection
  * @use_short_preamble: use 802.11b short preamble
+ * @dtim_period: num of beacons before the next DTIM, for PSM
  * @timestamp: beacon timestamp
  * @beacon_int: beacon interval
- * @assoc_capability: capabbilities taken from assoc resp
+ * @assoc_capability: capabilities taken from assoc resp
  * @assoc_ht: association in HT mode
  * @ht_conf: ht capabilities
  * @ht_bss_conf: ht extended capabilities
@@ -191,6 +192,7 @@ struct ieee80211_bss_conf {
         /* erp related data */
         bool use_cts_prot;
         bool use_short_preamble;
+        u8 dtim_period;
         u16 beacon_int;
         u16 assoc_capability;
         u64 timestamp;