1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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 void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
47 void iwl_clear_ucode_stations(struct iwl_priv *priv,
48 struct iwl_rxon_context *ctx);
49 void iwl_dealloc_bcast_stations(struct iwl_priv *priv);
50 int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
51 int iwl_send_add_sta(struct iwl_priv *priv,
52 struct iwl_addsta_cmd *sta, u8 flags);
53 int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
54 const u8 *addr, bool is_ap,
55 struct ieee80211_sta *sta, u8 *sta_id_r);
56 int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
58 int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
59 struct ieee80211_sta *sta);
61 u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
62 const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
64 int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
65 struct iwl_link_quality_cmd *lq, u8 flags, bool init);
66 void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
69 * iwl_clear_driver_stations - clear knowledge of all stations from driver
70 * @priv: iwl priv struct
72 * This is called during iwl_down() to make sure that in the case
73 * we're coming there from a hardware restart mac80211 will be
74 * able to reconfigure stations -- if we're getting there in the
75 * normal down flow then the stations will already be cleared.
77 static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
80 struct iwl_rxon_context *ctx;
82 spin_lock_irqsave(&priv->sta_lock, flags);
83 memset(priv->stations, 0, sizeof(priv->stations));
84 priv->num_stations = 0;
86 priv->ucode_key_table = 0;
88 for_each_context(priv, ctx) {
90 * Remove all key information that is not stored as part
91 * of station information since mac80211 may not have had
92 * a chance to remove all the keys. When device is
93 * reconfigured by mac80211 after an error all keys will
96 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
97 ctx->key_mapping_keys = 0;
100 spin_unlock_irqrestore(&priv->sta_lock, flags);
103 static inline int iwl_sta_id(struct ieee80211_sta *sta)
106 return IWL_INVALID_STATION;
108 return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
112 * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
114 * @context: the current context
115 * @sta: mac80211 station
117 * In certain circumstances mac80211 passes a station pointer
118 * that may be %NULL, for example during TX or key setup. In
119 * that case, we need to use the broadcast station, so this
120 * inline wraps that pattern.
122 static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
123 struct iwl_rxon_context *context,
124 struct ieee80211_sta *sta)
129 return context->bcast_sta_id;
131 sta_id = iwl_sta_id(sta);
134 * mac80211 should not be passing a partially
135 * initialised station!
137 WARN_ON(sta_id == IWL_INVALID_STATION);
141 #endif /* __iwl_sta_h__ */