1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
34 #define HW_KEY_DYNAMIC 0
35 #define HW_KEY_DEFAULT 1
37 #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
38 #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
39 #define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
41 #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
42 (this is for the IBSS BSSID stations) */
43 #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
46 int iwl_remove_default_wep_key(struct iwl_priv *priv,
47 struct ieee80211_key_conf *key);
48 int iwl_set_default_wep_key(struct iwl_priv *priv,
49 struct iwl_rxon_context *ctx,
50 struct ieee80211_key_conf *key);
51 int iwl_restore_default_wep_keys(struct iwl_priv *priv);
52 int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
53 struct ieee80211_key_conf *key, u8 sta_id);
54 int iwl_remove_dynamic_key(struct iwl_priv *priv,
55 struct ieee80211_key_conf *key, u8 sta_id);
56 void iwl_update_tkip_key(struct iwl_priv *priv,
57 struct iwl_rxon_context *ctx,
58 struct ieee80211_key_conf *keyconf,
59 struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
61 void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
62 void iwl_clear_ucode_stations(struct iwl_priv *priv,
63 struct iwl_rxon_context *ctx);
64 int iwl_alloc_bcast_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
66 void iwl_dealloc_bcast_stations(struct iwl_priv *priv);
67 int iwl_update_bcast_stations(struct iwl_priv *priv);
68 int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
69 int iwl_send_add_sta(struct iwl_priv *priv,
70 struct iwl_addsta_cmd *sta, u8 flags);
71 int iwl_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
72 const u8 *addr, bool init_rs, u8 *sta_id_r);
73 int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
74 const u8 *addr, bool is_ap,
75 struct ieee80211_sta_ht_cap *ht_info, u8 *sta_id_r);
76 int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
78 int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
79 struct ieee80211_sta *sta);
80 int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
81 int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
83 int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
85 void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id);
86 void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
89 * iwl_clear_driver_stations - clear knowledge of all stations from driver
90 * @priv: iwl priv struct
92 * This is called during iwl_down() to make sure that in the case
93 * we're coming there from a hardware restart mac80211 will be
94 * able to reconfigure stations -- if we're getting there in the
95 * normal down flow then the stations will already be cleared.
97 static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
101 spin_lock_irqsave(&priv->sta_lock, flags);
102 memset(priv->stations, 0, sizeof(priv->stations));
103 priv->num_stations = 0;
106 * Remove all key information that is not stored as part of station
107 * information since mac80211 may not have had a
108 * chance to remove all the keys. When device is reconfigured by
109 * mac80211 after an error all keys will be reconfigured.
111 priv->ucode_key_table = 0;
112 priv->key_mapping_key = 0;
113 memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
115 spin_unlock_irqrestore(&priv->sta_lock, flags);
118 static inline int iwl_sta_id(struct ieee80211_sta *sta)
121 return IWL_INVALID_STATION;
123 return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
127 * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
129 * @context: the current context
130 * @sta: mac80211 station
132 * In certain circumstances mac80211 passes a station pointer
133 * that may be %NULL, for example during TX or key setup. In
134 * that case, we need to use the broadcast station, so this
135 * inline wraps that pattern.
137 static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
138 struct iwl_rxon_context *context,
139 struct ieee80211_sta *sta)
144 return context->bcast_sta_id;
146 sta_id = iwl_sta_id(sta);
149 * mac80211 should not be passing a partially
150 * initialised station!
152 WARN_ON(sta_id == IWL_INVALID_STATION);
156 #endif /* __iwl_sta_h__ */