Commit 7c4cbb6e authored Feb 27, 2009 by Abhijeet Kolekar Committed by John W. Linville Mar 05, 2009

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>

parent 39e6d225

drivers/net/wireless/iwlwifi/iwl3945-base.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);