diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.h')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sta.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h new file mode 100644 index 00000000000..9a6768d6685 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-sta.h | |||
@@ -0,0 +1,138 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. | ||
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: | ||
25 | * Intel Linux Wireless <ilw@linux.intel.com> | ||
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 | |||
32 | #include "iwl-dev.h" | ||
33 | |||
34 | #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ | ||
35 | #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ | ||
36 | #define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of | ||
37 | being activated */ | ||
38 | #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211; | ||
39 | (this is for the IBSS BSSID stations) */ | ||
40 | #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */ | ||
41 | |||
42 | |||
43 | void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx); | ||
44 | void iwl_clear_ucode_stations(struct iwl_priv *priv, | ||
45 | struct iwl_rxon_context *ctx); | ||
46 | void iwl_dealloc_bcast_stations(struct iwl_priv *priv); | ||
47 | int iwl_get_free_ucode_key_offset(struct iwl_priv *priv); | ||
48 | int iwl_send_add_sta(struct iwl_priv *priv, | ||
49 | struct iwl_addsta_cmd *sta, u8 flags); | ||
50 | int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | ||
51 | const u8 *addr, bool is_ap, | ||
52 | struct ieee80211_sta *sta, u8 *sta_id_r); | ||
53 | int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, | ||
54 | const u8 *addr); | ||
55 | int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | ||
56 | struct ieee80211_sta *sta); | ||
57 | |||
58 | u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | ||
59 | const u8 *addr, bool is_ap, struct ieee80211_sta *sta); | ||
60 | |||
61 | int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | ||
62 | struct iwl_link_quality_cmd *lq, u8 flags, bool init); | ||
63 | void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx); | ||
64 | |||
65 | /** | ||
66 | * iwl_clear_driver_stations - clear knowledge of all stations from driver | ||
67 | * @priv: iwl priv struct | ||
68 | * | ||
69 | * This is called during iwl_down() to make sure that in the case | ||
70 | * we're coming there from a hardware restart mac80211 will be | ||
71 | * able to reconfigure stations -- if we're getting there in the | ||
72 | * normal down flow then the stations will already be cleared. | ||
73 | */ | ||
74 | static inline void iwl_clear_driver_stations(struct iwl_priv *priv) | ||
75 | { | ||
76 | unsigned long flags; | ||
77 | struct iwl_rxon_context *ctx; | ||
78 | |||
79 | spin_lock_irqsave(&priv->sta_lock, flags); | ||
80 | memset(priv->stations, 0, sizeof(priv->stations)); | ||
81 | priv->num_stations = 0; | ||
82 | |||
83 | priv->ucode_key_table = 0; | ||
84 | |||
85 | for_each_context(priv, ctx) { | ||
86 | /* | ||
87 | * Remove all key information that is not stored as part | ||
88 | * of station information since mac80211 may not have had | ||
89 | * a chance to remove all the keys. When device is | ||
90 | * reconfigured by mac80211 after an error all keys will | ||
91 | * be reconfigured. | ||
92 | */ | ||
93 | memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); | ||
94 | ctx->key_mapping_keys = 0; | ||
95 | } | ||
96 | |||
97 | spin_unlock_irqrestore(&priv->sta_lock, flags); | ||
98 | } | ||
99 | |||
100 | static inline int iwl_sta_id(struct ieee80211_sta *sta) | ||
101 | { | ||
102 | if (WARN_ON(!sta)) | ||
103 | return IWL_INVALID_STATION; | ||
104 | |||
105 | return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id; | ||
106 | } | ||
107 | |||
108 | /** | ||
109 | * iwl_sta_id_or_broadcast - return sta_id or broadcast sta | ||
110 | * @priv: iwl priv | ||
111 | * @context: the current context | ||
112 | * @sta: mac80211 station | ||
113 | * | ||
114 | * In certain circumstances mac80211 passes a station pointer | ||
115 | * that may be %NULL, for example during TX or key setup. In | ||
116 | * that case, we need to use the broadcast station, so this | ||
117 | * inline wraps that pattern. | ||
118 | */ | ||
119 | static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv, | ||
120 | struct iwl_rxon_context *context, | ||
121 | struct ieee80211_sta *sta) | ||
122 | { | ||
123 | int sta_id; | ||
124 | |||
125 | if (!sta) | ||
126 | return context->bcast_sta_id; | ||
127 | |||
128 | sta_id = iwl_sta_id(sta); | ||
129 | |||
130 | /* | ||
131 | * mac80211 should not be passing a partially | ||
132 | * initialised station! | ||
133 | */ | ||
134 | WARN_ON(sta_id == IWL_INVALID_STATION); | ||
135 | |||
136 | return sta_id; | ||
137 | } | ||
138 | #endif /* __iwl_sta_h__ */ | ||