Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Wey-Yi Guy | 901069c7 | 2011-04-05 09:42:00 -0700 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 4 | * |
| 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, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 26 | * 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 Berg | 2a87c26 | 2010-04-30 11:30:45 -0700 | [diff] [blame] | 32 | #include "iwl-dev.h" |
| 33 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 34 | #define HW_KEY_DYNAMIC 0 |
| 35 | #define HW_KEY_DEFAULT 1 |
| 36 | |
Reinette Chatre | 7e24619 | 2010-02-18 22:58:32 -0800 | [diff] [blame] | 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 |
| 40 | being activated */ |
Johannes Berg | 2c810cc | 2010-04-29 00:53:29 -0700 | [diff] [blame] | 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 */ |
Reinette Chatre | 7e24619 | 2010-02-18 22:58:32 -0800 | [diff] [blame] | 44 | |
| 45 | |
Johannes Berg | dcef732 | 2010-08-27 08:55:52 -0700 | [diff] [blame] | 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); |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 49 | void iwl_dealloc_bcast_stations(struct iwl_priv *priv); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 50 | int iwl_get_free_ucode_key_index(struct iwl_priv *priv); |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 51 | int iwl_send_add_sta(struct iwl_priv *priv, |
| 52 | struct iwl_addsta_cmd *sta, u8 flags); |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 53 | int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| 54 | const u8 *addr, bool is_ap, |
Johannes Berg | 238d781 | 2010-08-23 10:46:45 +0200 | [diff] [blame] | 55 | struct ieee80211_sta *sta, u8 *sta_id_r); |
Johannes Berg | fd1af15 | 2010-04-30 11:30:43 -0700 | [diff] [blame] | 56 | int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, |
| 57 | const u8 *addr); |
Reinette Chatre | fe6b23d | 2010-02-22 16:24:47 -0800 | [diff] [blame] | 58 | int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 59 | struct ieee80211_sta *sta); |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 60 | |
| 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); |
| 63 | |
| 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); |
Johannes Berg | 2b5f7a6 | 2010-11-10 18:25:48 -0800 | [diff] [blame] | 66 | void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx); |
Johannes Berg | 64ba9a5 | 2010-04-30 11:30:44 -0700 | [diff] [blame] | 67 | |
Johannes Berg | db125c7 | 2010-05-07 01:49:15 -0700 | [diff] [blame] | 68 | /** |
| 69 | * iwl_clear_driver_stations - clear knowledge of all stations from driver |
| 70 | * @priv: iwl priv struct |
| 71 | * |
| 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. |
| 76 | */ |
| 77 | static inline void iwl_clear_driver_stations(struct iwl_priv *priv) |
| 78 | { |
| 79 | unsigned long flags; |
Johannes Berg | c10afb6 | 2010-08-23 10:46:43 +0200 | [diff] [blame] | 80 | struct iwl_rxon_context *ctx; |
Johannes Berg | db125c7 | 2010-05-07 01:49:15 -0700 | [diff] [blame] | 81 | |
| 82 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 83 | memset(priv->stations, 0, sizeof(priv->stations)); |
| 84 | priv->num_stations = 0; |
Reinette Chatre | e4c0647 | 2010-06-21 14:23:47 -0700 | [diff] [blame] | 85 | |
Reinette Chatre | e4c0647 | 2010-06-21 14:23:47 -0700 | [diff] [blame] | 86 | priv->ucode_key_table = 0; |
Johannes Berg | c10afb6 | 2010-08-23 10:46:43 +0200 | [diff] [blame] | 87 | |
| 88 | for_each_context(priv, ctx) { |
| 89 | /* |
| 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 |
| 94 | * be reconfigured. |
| 95 | */ |
| 96 | memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); |
| 97 | ctx->key_mapping_keys = 0; |
| 98 | } |
Reinette Chatre | e4c0647 | 2010-06-21 14:23:47 -0700 | [diff] [blame] | 99 | |
Johannes Berg | db125c7 | 2010-05-07 01:49:15 -0700 | [diff] [blame] | 100 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 101 | } |
| 102 | |
Johannes Berg | 64ba9a5 | 2010-04-30 11:30:44 -0700 | [diff] [blame] | 103 | static 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 Berg | 0af8bca | 2010-04-30 14:08:00 -0700 | [diff] [blame] | 110 | |
| 111 | /** |
| 112 | * iwl_sta_id_or_broadcast - return sta_id or broadcast sta |
| 113 | * @priv: iwl priv |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 114 | * @context: the current context |
Johannes Berg | 0af8bca | 2010-04-30 14:08:00 -0700 | [diff] [blame] | 115 | * @sta: mac80211 station |
| 116 | * |
| 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. |
| 121 | */ |
| 122 | static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv, |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 123 | struct iwl_rxon_context *context, |
Johannes Berg | 0af8bca | 2010-04-30 14:08:00 -0700 | [diff] [blame] | 124 | struct ieee80211_sta *sta) |
| 125 | { |
| 126 | int sta_id; |
| 127 | |
| 128 | if (!sta) |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 129 | return context->bcast_sta_id; |
Johannes Berg | 0af8bca | 2010-04-30 14:08:00 -0700 | [diff] [blame] | 130 | |
| 131 | sta_id = iwl_sta_id(sta); |
| 132 | |
| 133 | /* |
| 134 | * mac80211 should not be passing a partially |
| 135 | * initialised station! |
| 136 | */ |
| 137 | WARN_ON(sta_id == IWL_INVALID_STATION); |
| 138 | |
| 139 | return sta_id; |
| 140 | } |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 141 | #endif /* __iwl_sta_h__ */ |