iwlwifi: consolidate station management code

This patch moves code around and group most of the station
management code into iwl-sta.c

No functional changes (yet)

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 129 insertions, 5 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 0c5f1221b8f3..109136a09c54 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -132,7 +132,7 @@ static int iwl_add_sta_callback(struct iwl_priv *priv,
         return 1;
 }
 
-int iwl_send_add_sta(struct iwl_priv *priv,
+static int iwl_send_add_sta(struct iwl_priv *priv,
                      struct iwl_addsta_cmd *sta, u8 flags)
 {
         struct iwl_rx_packet *res = NULL;
@@ -180,7 +180,6 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 
         return ret;
 }
-EXPORT_SYMBOL(iwl_send_add_sta);
 
 static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
                                    struct ieee80211_sta_ht_cap *sta_ht_inf)
@@ -703,6 +702,55 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
         return ret;
 }
 
+void iwl_update_tkip_key(struct iwl_priv *priv,
+                        struct ieee80211_key_conf *keyconf,
+                        const u8 *addr, u32 iv32, u16 *phase1key)
+{
+        u8 sta_id = IWL_INVALID_STATION;
+        unsigned long flags;
+        __le16 key_flags = 0;
+        int i;
+        DECLARE_MAC_BUF(mac);
+
+        sta_id = iwl_find_station(priv, addr);
+        if (sta_id == IWL_INVALID_STATION) {
+                IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
+                                   addr);
+                return;
+        }
+
+        if (iwl_scan_cancel(priv)) {
+                /* cancel scan failed, just live w/ bad key and rely
+                   briefly on SW decryption */
+                return;
+        }
+
+        key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+        key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+        key_flags &= ~STA_KEY_FLG_INVALID;
+
+        if (sta_id == priv->hw_params.bcast_sta_id)
+                key_flags |= STA_KEY_MULTICAST_MSK;
+
+        spin_lock_irqsave(&priv->sta_lock, flags);
+
+        priv->stations[sta_id].sta.key.key_flags = key_flags;
+        priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
+
+        for (i = 0; i < 5; i++)
+                priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
+                        cpu_to_le16(phase1key[i]);
+
+        priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+        priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+        iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+
+        spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+}
+EXPORT_SYMBOL(iwl_update_tkip_key);
+
 int iwl_remove_dynamic_key(struct iwl_priv *priv,
                                 struct ieee80211_key_conf *keyconf,
                                 u8 sta_id)
@@ -989,9 +1037,9 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
 EXPORT_SYMBOL(iwl_get_sta_id);
 
 /**
- * iwl_sta_modify_enable_tid_tx - Enable Tx for this TID in station table
+ * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
  */
-void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid)
+void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
 {
         unsigned long flags;
 
@@ -1004,5 +1052,81 @@ void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid)
 
         iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
 }
-EXPORT_SYMBOL(iwl_sta_modify_enable_tid_tx);
+EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid);
+
+int iwl_sta_rx_agg_start(struct iwl_priv *priv,
+                         const u8 *addr, int tid, u16 ssn)
+{
+        unsigned long flags;
+        int sta_id;
+
+        sta_id = iwl_find_station(priv, addr);
+        if (sta_id == IWL_INVALID_STATION)
+                return -ENXIO;
+
+        spin_lock_irqsave(&priv->sta_lock, flags);
+        priv->stations[sta_id].sta.station_flags_msk = 0;
+        priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
+        priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
+        priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
+        priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+        spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+        return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
+                                        CMD_ASYNC);
+}
+EXPORT_SYMBOL(iwl_sta_rx_agg_start);
+
+int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid)
+{
+        unsigned long flags;
+        int sta_id;
+
+        sta_id = iwl_find_station(priv, addr);
+        if (sta_id == IWL_INVALID_STATION)
+                return -ENXIO;
+
+        spin_lock_irqsave(&priv->sta_lock, flags);
+        priv->stations[sta_id].sta.station_flags_msk = 0;
+        priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
+        priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
+        priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+        spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+        return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
+                                        CMD_ASYNC);
+}
+EXPORT_SYMBOL(iwl_sta_rx_agg_stop);
+
+static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&priv->sta_lock, flags);
+        priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
+        priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
+        priv->stations[sta_id].sta.sta.modify_mask = 0;
+        priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+        spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+        iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+}
+
+void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
+{
+        /* FIXME: need locking over ps_status ??? */
+        u8 sta_id = iwl_find_station(priv, addr);
+
+        if (sta_id != IWL_INVALID_STATION) {
+                u8 sta_awake = priv->stations[sta_id].
+                                ps_status == STA_PS_STATUS_WAKE;
+
+                if (sta_awake && ps_bit)
+                        priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
+                else if (!sta_awake && !ps_bit) {
+                        iwl_sta_modify_ps_wake(priv, sta_id);
+                        priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
+                }
+        }
+}