iwlagn: fix non-5000+ build

When building 4965 without 5000+ there were a
lot of build errors due to functions being used
that weren't even compiled in. To fix this move
some code around and only compile the HCMD code
for 5000+ series as it's not used for 4965.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
index 35a30d2..35f085a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
@@ -684,7 +684,7 @@
 	return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC);
 }
 
-void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
+static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
 {
 	unsigned long flags;
 
@@ -714,3 +714,33 @@
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 
 }
+
+void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
+			   struct ieee80211_vif *vif,
+			   enum sta_notify_cmd cmd,
+			   struct ieee80211_sta *sta)
+{
+	struct iwl_priv *priv = hw->priv;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	int sta_id;
+
+	switch (cmd) {
+	case STA_NOTIFY_SLEEP:
+		WARN_ON(!sta_priv->client);
+		sta_priv->asleep = true;
+		if (atomic_read(&sta_priv->pending_frames) > 0)
+			ieee80211_sta_block_awake(hw, sta, true);
+		break;
+	case STA_NOTIFY_AWAKE:
+		WARN_ON(!sta_priv->client);
+		if (!sta_priv->asleep)
+			break;
+		sta_priv->asleep = false;
+		sta_id = iwl_sta_id(sta);
+		if (sta_id != IWL_INVALID_STATION)
+			iwl_sta_modify_ps_wake(priv, sta_id);
+		break;
+	default:
+		break;
+	}
+}