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Emmanuel Grumbach6974e362008-04-14 21:16:06 -07001/******************************************************************************
2 *
Reinette Chatre1f447802010-01-15 13:43:41 -08003 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
Emmanuel Grumbach6974e362008-04-14 21:16:06 -07004 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
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.
11 *
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
15 * more details.
16 *
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
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
Winkler, Tomas759ef892008-12-09 11:28:58 -080025 * Intel Linux Wireless <ilw@linux.intel.com>
Emmanuel Grumbach6974e362008-04-14 21:16:06 -070026 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29#ifndef __iwl_sta_h__
30#define __iwl_sta_h__
31
Johannes Berg2a87c262010-04-30 11:30:45 -070032#include "iwl-dev.h"
33
Emmanuel Grumbachccc038a2008-05-15 13:54:09 +080034#define HW_KEY_DYNAMIC 0
35#define HW_KEY_DEFAULT 1
36
Reinette Chatre7e246192010-02-18 22:58:32 -080037#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
40 being activated */
Johannes Berg2c810cc2010-04-29 00:53:29 -070041#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 */
Reinette Chatre7e246192010-02-18 22:58:32 -080044
45
Emmanuel Grumbach6974e362008-04-14 21:16:06 -070046int iwl_remove_default_wep_key(struct iwl_priv *priv,
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +080047 struct ieee80211_key_conf *key);
Emmanuel Grumbach6974e362008-04-14 21:16:06 -070048int iwl_set_default_wep_key(struct iwl_priv *priv,
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +080049 struct ieee80211_key_conf *key);
Johannes Berg335348b2010-03-30 10:11:46 -070050int iwl_restore_default_wep_keys(struct iwl_priv *priv);
Emmanuel Grumbach74805132008-04-14 21:16:09 -070051int iwl_set_dynamic_key(struct iwl_priv *priv,
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +080052 struct ieee80211_key_conf *key, u8 sta_id);
Emmanuel Grumbach3ec47732008-04-17 16:03:36 -070053int iwl_remove_dynamic_key(struct iwl_priv *priv,
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +080054 struct ieee80211_key_conf *key, u8 sta_id);
Tomas Winkler9f586712008-11-12 13:14:05 -080055void iwl_update_tkip_key(struct iwl_priv *priv,
56 struct ieee80211_key_conf *keyconf,
Johannes Bergbdbb6122010-04-30 13:53:37 -070057 struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
Tomas Winkler9f586712008-11-12 13:14:05 -080058
Reinette Chatre7e246192010-02-18 22:58:32 -080059void iwl_restore_stations(struct iwl_priv *priv);
Johannes Berg2c810cc2010-04-29 00:53:29 -070060void iwl_clear_ucode_stations(struct iwl_priv *priv);
61int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq);
62void iwl_dealloc_bcast_station(struct iwl_priv *priv);
Abhijeet Kolekar6e21f152009-02-27 16:21:21 -080063int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
Samuel Ortiz17f841c2009-01-23 13:45:20 -080064int iwl_send_add_sta(struct iwl_priv *priv,
65 struct iwl_addsta_cmd *sta, u8 flags);
Johannes Berg57f8db82010-04-30 11:30:49 -070066int iwl_add_bssid_station(struct iwl_priv *priv, const u8 *addr, bool init_rs,
Johannes Bergfd1af152010-04-30 11:30:43 -070067 u8 *sta_id_r);
Reinette Chatrefe6b23d2010-02-22 16:24:47 -080068int iwl_add_station_common(struct iwl_priv *priv, const u8 *addr,
69 bool is_ap,
70 struct ieee80211_sta_ht_cap *ht_info,
71 u8 *sta_id_r);
Johannes Bergfd1af152010-04-30 11:30:43 -070072int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
73 const u8 *addr);
Reinette Chatrefe6b23d2010-02-22 16:24:47 -080074int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
75 struct ieee80211_sta *sta);
Johannes Berg4620fef2010-06-16 03:30:27 -070076int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
Johannes Berg619753f2010-04-30 11:30:46 -070077int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
78 int tid, u16 ssn);
79int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
80 int tid);
Johannes Berg6ab10ff2009-11-13 11:56:37 -080081void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id);
82void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
Johannes Berg64ba9a52010-04-30 11:30:44 -070083
Johannes Bergdb125c72010-05-07 01:49:15 -070084/**
85 * iwl_clear_driver_stations - clear knowledge of all stations from driver
86 * @priv: iwl priv struct
87 *
88 * This is called during iwl_down() to make sure that in the case
89 * we're coming there from a hardware restart mac80211 will be
90 * able to reconfigure stations -- if we're getting there in the
91 * normal down flow then the stations will already be cleared.
92 */
93static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
94{
95 unsigned long flags;
96
97 spin_lock_irqsave(&priv->sta_lock, flags);
98 memset(priv->stations, 0, sizeof(priv->stations));
99 priv->num_stations = 0;
100 spin_unlock_irqrestore(&priv->sta_lock, flags);
101}
102
Johannes Berg64ba9a52010-04-30 11:30:44 -0700103static inline int iwl_sta_id(struct ieee80211_sta *sta)
104{
105 if (WARN_ON(!sta))
106 return IWL_INVALID_STATION;
107
108 return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
109}
Johannes Berg0af8bca2010-04-30 14:08:00 -0700110
111/**
112 * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
113 * @priv: iwl priv
114 * @sta: mac80211 station
115 *
116 * In certain circumstances mac80211 passes a station pointer
117 * that may be %NULL, for example during TX or key setup. In
118 * that case, we need to use the broadcast station, so this
119 * inline wraps that pattern.
120 */
121static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
122 struct ieee80211_sta *sta)
123{
124 int sta_id;
125
126 if (!sta)
127 return priv->hw_params.bcast_sta_id;
128
129 sta_id = iwl_sta_id(sta);
130
131 /*
132 * mac80211 should not be passing a partially
133 * initialised station!
134 */
135 WARN_ON(sta_id == IWL_INVALID_STATION);
136
137 return sta_id;
138}
Emmanuel Grumbach6974e362008-04-14 21:16:06 -0700139#endif /* __iwl_sta_h__ */