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authorAbhijeet Kolekar <abhijeet.kolekar@intel.com>2009-02-27 16:21:20 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-03-05 14:39:35 -0500
commit7c4cbb6ee0a55885d697a5b07b6c4c8fd10d573a (patch)
tree42c40b515fc32539f2949e134c61bfb9be419b92 /drivers/net/wireless/iwlwifi/iwl3945-base.c
parent39e6d2256b8b8265ef16297887b5521f3e0155c6 (diff)
iwl3945: synchronize timestamp with uCode
In IBSS, TSF maintains local clock counters at each station. Network Synchronization follows a completely distributed scheme where beacon frames are generated. Each station maintain its own TSF timestamp, extracted from beacon timestamps they recieved. Following patch synchronize this beacon timestamp with uCode. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl3945-base.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d0596e7f64e..4dbaf04c5f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -4305,6 +4305,7 @@ static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk
{
struct iwl_priv *priv = hw->priv;
unsigned long flags;
+ __le64 timestamp;
IWL_DEBUG_MAC80211(priv, "enter\n");
@@ -4326,6 +4327,8 @@ static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk
priv->ibss_beacon = skb;
priv->assoc_id = 0;
+ timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ priv->timestamp = le64_to_cpu(timestamp);
IWL_DEBUG_MAC80211(priv, "leave\n");
spin_unlock_irqrestore(&priv->lock, flags);