Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2009 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 | |
| 30 | #include <net/mac80211.h> |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 31 | #include <linux/etherdevice.h> |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 32 | |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 33 | #include "iwl-dev.h" |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 34 | #include "iwl-core.h" |
| 35 | #include "iwl-sta.h" |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 36 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +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 */ |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 39 | |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 40 | u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr) |
| 41 | { |
| 42 | int i; |
| 43 | int start = 0; |
| 44 | int ret = IWL_INVALID_STATION; |
| 45 | unsigned long flags; |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 46 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 47 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || |
| 48 | (priv->iw_mode == NL80211_IFTYPE_AP)) |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 49 | start = IWL_STA_ID; |
| 50 | |
| 51 | if (is_broadcast_ether_addr(addr)) |
| 52 | return priv->hw_params.bcast_sta_id; |
| 53 | |
| 54 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 55 | for (i = start; i < priv->hw_params.max_stations; i++) |
| 56 | if (priv->stations[i].used && |
| 57 | (!compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 58 | addr))) { |
| 59 | ret = i; |
| 60 | goto out; |
| 61 | } |
| 62 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 63 | IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 64 | addr, priv->num_stations); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 65 | |
| 66 | out: |
| 67 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 68 | return ret; |
| 69 | } |
| 70 | EXPORT_SYMBOL(iwl_find_station); |
| 71 | |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 72 | int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 73 | { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 74 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 75 | return IWL_AP_ID; |
| 76 | } else { |
| 77 | u8 *da = ieee80211_get_DA(hdr); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 78 | return iwl_find_station(priv, da); |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 79 | } |
| 80 | } |
| 81 | EXPORT_SYMBOL(iwl_get_ra_sta_id); |
| 82 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 83 | static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) |
| 84 | { |
| 85 | unsigned long flags; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 86 | |
| 87 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 88 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 89 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 90 | IWL_ERR(priv, "ACTIVATE a non DRIVER active station %d\n", |
| 91 | sta_id); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 92 | |
| 93 | priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 94 | IWL_DEBUG_ASSOC(priv, "Added STA to Ucode: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 95 | priv->stations[sta_id].sta.sta.addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 96 | |
| 97 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 98 | } |
| 99 | |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 100 | static int iwl_add_sta_callback(struct iwl_priv *priv, |
| 101 | struct iwl_cmd *cmd, struct sk_buff *skb) |
| 102 | { |
| 103 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 104 | struct iwl_addsta_cmd *addsta = |
| 105 | (struct iwl_addsta_cmd *)cmd->cmd.payload; |
| 106 | u8 sta_id = addsta->sta.sta_id; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 107 | |
| 108 | if (!skb) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 109 | IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n"); |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 110 | return 1; |
| 111 | } |
| 112 | |
| 113 | res = (struct iwl_rx_packet *)skb->data; |
| 114 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 115 | IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 116 | res->hdr.flags); |
| 117 | return 1; |
| 118 | } |
| 119 | |
| 120 | switch (res->u.add_sta.status) { |
| 121 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 122 | iwl_sta_ucode_activate(priv, sta_id); |
| 123 | /* fall through */ |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 124 | default: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 125 | IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n", |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 126 | res->u.add_sta.status); |
| 127 | break; |
| 128 | } |
| 129 | |
| 130 | /* We didn't cache the SKB; let the caller free it */ |
| 131 | return 1; |
| 132 | } |
| 133 | |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 134 | int iwl_send_add_sta(struct iwl_priv *priv, |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 135 | struct iwl_addsta_cmd *sta, u8 flags) |
| 136 | { |
| 137 | struct iwl_rx_packet *res = NULL; |
| 138 | int ret = 0; |
| 139 | u8 data[sizeof(*sta)]; |
| 140 | struct iwl_host_cmd cmd = { |
| 141 | .id = REPLY_ADD_STA, |
| 142 | .meta.flags = flags, |
| 143 | .data = data, |
| 144 | }; |
| 145 | |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 146 | if (flags & CMD_ASYNC) |
| 147 | cmd.meta.u.callback = iwl_add_sta_callback; |
| 148 | else |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 149 | cmd.meta.flags |= CMD_WANT_SKB; |
| 150 | |
| 151 | cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data); |
| 152 | ret = iwl_send_cmd(priv, &cmd); |
| 153 | |
| 154 | if (ret || (flags & CMD_ASYNC)) |
| 155 | return ret; |
| 156 | |
| 157 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
| 158 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 159 | IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 160 | res->hdr.flags); |
| 161 | ret = -EIO; |
| 162 | } |
| 163 | |
| 164 | if (ret == 0) { |
| 165 | switch (res->u.add_sta.status) { |
| 166 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 167 | iwl_sta_ucode_activate(priv, sta->sta.sta_id); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 168 | IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n"); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 169 | break; |
| 170 | default: |
| 171 | ret = -EIO; |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 172 | IWL_WARN(priv, "REPLY_ADD_STA failed\n"); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 173 | break; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | priv->alloc_rxb_skb--; |
| 178 | dev_kfree_skb_any(cmd.meta.u.skb); |
| 179 | |
| 180 | return ret; |
| 181 | } |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 182 | EXPORT_SYMBOL(iwl_send_add_sta); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 183 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 184 | static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 185 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 186 | { |
| 187 | __le32 sta_flags; |
| 188 | u8 mimo_ps_mode; |
| 189 | |
| 190 | if (!sta_ht_inf || !sta_ht_inf->ht_supported) |
| 191 | goto done; |
| 192 | |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 193 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 194 | |
| 195 | sta_flags = priv->stations[index].sta.station_flags; |
| 196 | |
| 197 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); |
| 198 | |
| 199 | switch (mimo_ps_mode) { |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 200 | case WLAN_HT_CAP_SM_PS_STATIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 201 | sta_flags |= STA_FLG_MIMO_DIS_MSK; |
| 202 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 203 | case WLAN_HT_CAP_SM_PS_DYNAMIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 204 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
| 205 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 206 | case WLAN_HT_CAP_SM_PS_DISABLED: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 207 | break; |
| 208 | default: |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 209 | IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 210 | break; |
| 211 | } |
| 212 | |
| 213 | sta_flags |= cpu_to_le32( |
| 214 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); |
| 215 | |
| 216 | sta_flags |= cpu_to_le32( |
| 217 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); |
| 218 | |
| 219 | if (iwl_is_fat_tx_allowed(priv, sta_ht_inf)) |
| 220 | sta_flags |= STA_FLG_FAT_EN_MSK; |
| 221 | else |
| 222 | sta_flags &= ~STA_FLG_FAT_EN_MSK; |
| 223 | |
| 224 | priv->stations[index].sta.station_flags = sta_flags; |
| 225 | done: |
| 226 | return; |
| 227 | } |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 228 | |
| 229 | /** |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 230 | * iwl_add_station - Add station to tables in driver and device |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 231 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 232 | u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags, |
| 233 | struct ieee80211_sta_ht_cap *ht_info) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 234 | { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 235 | struct iwl_station_entry *station; |
| 236 | unsigned long flags_spin; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 237 | int i; |
| 238 | int sta_id = IWL_INVALID_STATION; |
| 239 | u16 rate; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 240 | |
| 241 | spin_lock_irqsave(&priv->sta_lock, flags_spin); |
| 242 | if (is_ap) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 243 | sta_id = IWL_AP_ID; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 244 | else if (is_broadcast_ether_addr(addr)) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 245 | sta_id = priv->hw_params.bcast_sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 246 | else |
| 247 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { |
| 248 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 249 | addr)) { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 250 | sta_id = i; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 251 | break; |
| 252 | } |
| 253 | |
| 254 | if (!priv->stations[i].used && |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 255 | sta_id == IWL_INVALID_STATION) |
| 256 | sta_id = i; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 257 | } |
| 258 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 259 | /* These two conditions have the same outcome, but keep them separate |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 260 | since they have different meanings */ |
| 261 | if (unlikely(sta_id == IWL_INVALID_STATION)) { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 262 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 263 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 264 | } |
| 265 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 266 | if (priv->stations[sta_id].used && |
| 267 | !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 268 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 269 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 273 | station = &priv->stations[sta_id]; |
| 274 | station->used = IWL_STA_DRIVER_ACTIVE; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 275 | IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 276 | sta_id, addr); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 277 | priv->num_stations++; |
| 278 | |
| 279 | /* Set up the REPLY_ADD_STA command to send to device */ |
| 280 | memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd)); |
| 281 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
| 282 | station->sta.mode = 0; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 283 | station->sta.sta.sta_id = sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 284 | station->sta.station_flags = 0; |
| 285 | |
| 286 | /* BCAST station and IBSS stations do not work in HT mode */ |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 287 | if (sta_id != priv->hw_params.bcast_sta_id && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 288 | priv->iw_mode != NL80211_IFTYPE_ADHOC) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 289 | iwl_set_ht_add_station(priv, sta_id, ht_info); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 290 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 291 | /* 3945 only */ |
| 292 | rate = (priv->band == IEEE80211_BAND_5GHZ) ? |
| 293 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP; |
| 294 | /* Turn on both antennas for the station... */ |
| 295 | station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK); |
| 296 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 297 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
| 298 | |
| 299 | /* Add station to device's station table */ |
| 300 | iwl_send_add_sta(priv, &station->sta, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 301 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 302 | |
| 303 | } |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 304 | EXPORT_SYMBOL(iwl_add_station); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 305 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 306 | static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 307 | { |
| 308 | unsigned long flags; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 309 | u8 sta_id = iwl_find_station(priv, addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 310 | |
| 311 | BUG_ON(sta_id == IWL_INVALID_STATION); |
| 312 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 313 | IWL_DEBUG_ASSOC(priv, "Removed STA from Ucode: %pM\n", addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 314 | |
| 315 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 316 | |
| 317 | /* Ucode must be active and driver must be non active */ |
| 318 | if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 319 | IWL_ERR(priv, "removed non active STA %d\n", sta_id); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 320 | |
| 321 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; |
| 322 | |
| 323 | memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); |
| 324 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | static int iwl_remove_sta_callback(struct iwl_priv *priv, |
| 328 | struct iwl_cmd *cmd, struct sk_buff *skb) |
| 329 | { |
| 330 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 331 | struct iwl_rem_sta_cmd *rm_sta = |
| 332 | (struct iwl_rem_sta_cmd *)cmd->cmd.payload; |
| 333 | const char *addr = rm_sta->addr; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 334 | |
| 335 | if (!skb) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 336 | IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 337 | return 1; |
| 338 | } |
| 339 | |
| 340 | res = (struct iwl_rx_packet *)skb->data; |
| 341 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 342 | IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 343 | res->hdr.flags); |
| 344 | return 1; |
| 345 | } |
| 346 | |
| 347 | switch (res->u.rem_sta.status) { |
| 348 | case REM_STA_SUCCESS_MSK: |
| 349 | iwl_sta_ucode_deactivate(priv, addr); |
| 350 | break; |
| 351 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 352 | IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 353 | break; |
| 354 | } |
| 355 | |
| 356 | /* We didn't cache the SKB; let the caller free it */ |
| 357 | return 1; |
| 358 | } |
| 359 | |
| 360 | static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, |
| 361 | u8 flags) |
| 362 | { |
| 363 | struct iwl_rx_packet *res = NULL; |
| 364 | int ret; |
| 365 | |
| 366 | struct iwl_rem_sta_cmd rm_sta_cmd; |
| 367 | |
| 368 | struct iwl_host_cmd cmd = { |
| 369 | .id = REPLY_REMOVE_STA, |
| 370 | .len = sizeof(struct iwl_rem_sta_cmd), |
| 371 | .meta.flags = flags, |
| 372 | .data = &rm_sta_cmd, |
| 373 | }; |
| 374 | |
| 375 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); |
| 376 | rm_sta_cmd.num_sta = 1; |
| 377 | memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN); |
| 378 | |
| 379 | if (flags & CMD_ASYNC) |
| 380 | cmd.meta.u.callback = iwl_remove_sta_callback; |
| 381 | else |
| 382 | cmd.meta.flags |= CMD_WANT_SKB; |
| 383 | ret = iwl_send_cmd(priv, &cmd); |
| 384 | |
| 385 | if (ret || (flags & CMD_ASYNC)) |
| 386 | return ret; |
| 387 | |
| 388 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
| 389 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 390 | IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 391 | res->hdr.flags); |
| 392 | ret = -EIO; |
| 393 | } |
| 394 | |
| 395 | if (!ret) { |
| 396 | switch (res->u.rem_sta.status) { |
| 397 | case REM_STA_SUCCESS_MSK: |
| 398 | iwl_sta_ucode_deactivate(priv, addr); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 399 | IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 400 | break; |
| 401 | default: |
| 402 | ret = -EIO; |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 403 | IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 404 | break; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | priv->alloc_rxb_skb--; |
| 409 | dev_kfree_skb_any(cmd.meta.u.skb); |
| 410 | |
| 411 | return ret; |
| 412 | } |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 413 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 414 | /** |
| 415 | * iwl_remove_station - Remove driver's knowledge of station. |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 416 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 417 | int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 418 | { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 419 | int sta_id = IWL_INVALID_STATION; |
| 420 | int i, ret = -EINVAL; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 421 | unsigned long flags; |
| 422 | |
| 423 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 424 | |
| 425 | if (is_ap) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 426 | sta_id = IWL_AP_ID; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 427 | else if (is_broadcast_ether_addr(addr)) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 428 | sta_id = priv->hw_params.bcast_sta_id; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 429 | else |
| 430 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) |
| 431 | if (priv->stations[i].used && |
| 432 | !compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 433 | addr)) { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 434 | sta_id = i; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 435 | break; |
| 436 | } |
| 437 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 438 | if (unlikely(sta_id == IWL_INVALID_STATION)) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 439 | goto out; |
| 440 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 441 | IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 442 | sta_id, addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 443 | |
| 444 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 445 | IWL_ERR(priv, "Removing %pM but non DRIVER active\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 446 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 447 | goto out; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 448 | } |
| 449 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 450 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 451 | IWL_ERR(priv, "Removing %pM but non UCODE active\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 452 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 453 | goto out; |
| 454 | } |
| 455 | |
| 456 | |
| 457 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; |
| 458 | |
| 459 | priv->num_stations--; |
| 460 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 461 | BUG_ON(priv->num_stations < 0); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 462 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 463 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 464 | |
| 465 | ret = iwl_send_remove_station(priv, addr, CMD_ASYNC); |
| 466 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 467 | out: |
| 468 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 469 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 470 | } |
| 471 | EXPORT_SYMBOL(iwl_remove_station); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 472 | |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 473 | /** |
| 474 | * iwl_clear_stations_table - Clear the driver's station table |
| 475 | * |
| 476 | * NOTE: This does not clear or otherwise alter the device's station table. |
| 477 | */ |
| 478 | void iwl_clear_stations_table(struct iwl_priv *priv) |
| 479 | { |
| 480 | unsigned long flags; |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 481 | int i; |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 482 | |
| 483 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 484 | |
| 485 | if (iwl_is_alive(priv) && |
| 486 | !test_bit(STATUS_EXIT_PENDING, &priv->status) && |
| 487 | iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 488 | IWL_ERR(priv, "Couldn't clear the station table\n"); |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 489 | |
| 490 | priv->num_stations = 0; |
| 491 | memset(priv->stations, 0, sizeof(priv->stations)); |
| 492 | |
Reinette Chatre | 5e46882 | 2009-01-28 09:38:30 -0800 | [diff] [blame] | 493 | /* clean ucode key table bit map */ |
| 494 | priv->ucode_key_table = 0; |
| 495 | |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 496 | /* keep track of static keys */ |
| 497 | for (i = 0; i < WEP_KEYS_MAX ; i++) { |
| 498 | if (priv->wep_keys[i].key_size) |
Tomas Winkler | 4e8e2c8 | 2009-04-30 13:56:29 -0700 | [diff] [blame] | 499 | set_bit(i, &priv->ucode_key_table); |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 500 | } |
| 501 | |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 502 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 503 | } |
| 504 | EXPORT_SYMBOL(iwl_clear_stations_table); |
| 505 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 506 | int iwl_get_free_ucode_key_index(struct iwl_priv *priv) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 507 | { |
| 508 | int i; |
| 509 | |
| 510 | for (i = 0; i < STA_KEY_MAX_NUM; i++) |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 511 | if (!test_and_set_bit(i, &priv->ucode_key_table)) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 512 | return i; |
| 513 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 514 | return WEP_INVALID_OFFSET; |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 515 | } |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 516 | EXPORT_SYMBOL(iwl_get_free_ucode_key_index); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 517 | |
| 518 | int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) |
| 519 | { |
| 520 | int i, not_empty = 0; |
| 521 | u8 buff[sizeof(struct iwl_wep_cmd) + |
| 522 | sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; |
| 523 | struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; |
| 524 | size_t cmd_size = sizeof(struct iwl_wep_cmd); |
| 525 | struct iwl_host_cmd cmd = { |
| 526 | .id = REPLY_WEPKEY, |
| 527 | .data = wep_cmd, |
| 528 | .meta.flags = CMD_ASYNC, |
| 529 | }; |
| 530 | |
| 531 | memset(wep_cmd, 0, cmd_size + |
| 532 | (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); |
| 533 | |
| 534 | for (i = 0; i < WEP_KEYS_MAX ; i++) { |
| 535 | wep_cmd->key[i].key_index = i; |
| 536 | if (priv->wep_keys[i].key_size) { |
| 537 | wep_cmd->key[i].key_offset = i; |
| 538 | not_empty = 1; |
| 539 | } else { |
| 540 | wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; |
| 541 | } |
| 542 | |
| 543 | wep_cmd->key[i].key_size = priv->wep_keys[i].key_size; |
| 544 | memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key, |
| 545 | priv->wep_keys[i].key_size); |
| 546 | } |
| 547 | |
| 548 | wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; |
| 549 | wep_cmd->num_keys = WEP_KEYS_MAX; |
| 550 | |
| 551 | cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; |
| 552 | |
| 553 | cmd.len = cmd_size; |
| 554 | |
| 555 | if (not_empty || send_if_empty) |
| 556 | return iwl_send_cmd(priv, &cmd); |
| 557 | else |
| 558 | return 0; |
| 559 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 560 | EXPORT_SYMBOL(iwl_send_static_wepkey_cmd); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 561 | |
| 562 | int iwl_remove_default_wep_key(struct iwl_priv *priv, |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 563 | struct ieee80211_key_conf *keyconf) |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 564 | { |
| 565 | int ret; |
| 566 | unsigned long flags; |
| 567 | |
| 568 | spin_lock_irqsave(&priv->sta_lock, flags); |
Reinette Chatre | 99f1b01 | 2009-08-03 12:10:16 -0700 | [diff] [blame] | 569 | IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n", |
| 570 | keyconf->keyidx); |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 571 | |
| 572 | if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 573 | IWL_ERR(priv, "index %d not used in uCode key table.\n", |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 574 | keyconf->keyidx); |
| 575 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 576 | priv->default_wep_key--; |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 577 | memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0])); |
Reinette Chatre | 99f1b01 | 2009-08-03 12:10:16 -0700 | [diff] [blame] | 578 | if (iwl_is_rfkill(priv)) { |
| 579 | IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n"); |
| 580 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 581 | return 0; |
| 582 | } |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 583 | ret = iwl_send_static_wepkey_cmd(priv, 1); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 584 | IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 585 | keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 586 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 587 | |
| 588 | return ret; |
| 589 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 590 | EXPORT_SYMBOL(iwl_remove_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 591 | |
| 592 | int iwl_set_default_wep_key(struct iwl_priv *priv, |
| 593 | struct ieee80211_key_conf *keyconf) |
| 594 | { |
| 595 | int ret; |
| 596 | unsigned long flags; |
| 597 | |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 598 | if (keyconf->keylen != WEP_KEY_LEN_128 && |
| 599 | keyconf->keylen != WEP_KEY_LEN_64) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 600 | IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen); |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 601 | return -EINVAL; |
| 602 | } |
| 603 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 604 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 605 | keyconf->hw_key_idx = HW_KEY_DEFAULT; |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 606 | priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP; |
| 607 | |
| 608 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 609 | priv->default_wep_key++; |
| 610 | |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 611 | if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 612 | IWL_ERR(priv, "index %d already used in uCode key table.\n", |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 613 | keyconf->keyidx); |
| 614 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 615 | priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; |
| 616 | memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key, |
| 617 | keyconf->keylen); |
| 618 | |
| 619 | ret = iwl_send_static_wepkey_cmd(priv, 0); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 620 | IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 621 | keyconf->keylen, keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 622 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 623 | |
| 624 | return ret; |
| 625 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 626 | EXPORT_SYMBOL(iwl_set_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 627 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 628 | static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 629 | struct ieee80211_key_conf *keyconf, |
| 630 | u8 sta_id) |
| 631 | { |
| 632 | unsigned long flags; |
| 633 | __le16 key_flags = 0; |
| 634 | int ret; |
| 635 | |
| 636 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 637 | |
| 638 | key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); |
| 639 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 640 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 641 | |
| 642 | if (keyconf->keylen == WEP_KEY_LEN_128) |
| 643 | key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; |
| 644 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 645 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 646 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 647 | |
| 648 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 649 | |
| 650 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 651 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 652 | priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; |
| 653 | |
| 654 | memcpy(priv->stations[sta_id].keyinfo.key, |
| 655 | keyconf->key, keyconf->keylen); |
| 656 | |
| 657 | memcpy(&priv->stations[sta_id].sta.key.key[3], |
| 658 | keyconf->key, keyconf->keylen); |
| 659 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 660 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 661 | == STA_KEY_FLG_NO_ENC) |
| 662 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 663 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 664 | /* else, we are overriding an existing key => no need to allocated room |
| 665 | * in uCode. */ |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 666 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 667 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 668 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 669 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 670 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 671 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 672 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 673 | |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 674 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 675 | |
| 676 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 677 | |
| 678 | return ret; |
| 679 | } |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 680 | |
| 681 | static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
| 682 | struct ieee80211_key_conf *keyconf, |
| 683 | u8 sta_id) |
| 684 | { |
| 685 | unsigned long flags; |
| 686 | __le16 key_flags = 0; |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 687 | int ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 688 | |
| 689 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); |
| 690 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 691 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 692 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 693 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 694 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 695 | |
| 696 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 697 | |
| 698 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 699 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 700 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 701 | |
| 702 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, |
| 703 | keyconf->keylen); |
| 704 | |
| 705 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
| 706 | keyconf->keylen); |
| 707 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 708 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 709 | == STA_KEY_FLG_NO_ENC) |
| 710 | priv->stations[sta_id].sta.key.key_offset = |
| 711 | iwl_get_free_ucode_key_index(priv); |
| 712 | /* else, we are overriding an existing key => no need to allocated room |
| 713 | * in uCode. */ |
| 714 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 715 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 716 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 717 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 718 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 719 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 720 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 721 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 722 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 723 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 724 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 725 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 726 | return ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, |
| 730 | struct ieee80211_key_conf *keyconf, |
| 731 | u8 sta_id) |
| 732 | { |
| 733 | unsigned long flags; |
| 734 | int ret = 0; |
Reinette Chatre | 299f546 | 2009-04-30 13:56:31 -0700 | [diff] [blame] | 735 | __le16 key_flags = 0; |
| 736 | |
| 737 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); |
| 738 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 739 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 740 | |
| 741 | if (sta_id == priv->hw_params.bcast_sta_id) |
| 742 | key_flags |= STA_KEY_MULTICAST_MSK; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 743 | |
| 744 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 745 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 746 | |
| 747 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 748 | |
| 749 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 750 | priv->stations[sta_id].keyinfo.keylen = 16; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 751 | |
| 752 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 753 | == STA_KEY_FLG_NO_ENC) |
| 754 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 755 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 756 | /* else, we are overriding an existing key => no need to allocated room |
| 757 | * in uCode. */ |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 758 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 759 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 760 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 761 | |
Reinette Chatre | 299f546 | 2009-04-30 13:56:31 -0700 | [diff] [blame] | 762 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 763 | |
| 764 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 765 | /* This copy is acutally not needed: we get the key with each TX */ |
| 766 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); |
| 767 | |
| 768 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); |
| 769 | |
| 770 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 771 | |
| 772 | return ret; |
| 773 | } |
| 774 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 775 | void iwl_update_tkip_key(struct iwl_priv *priv, |
| 776 | struct ieee80211_key_conf *keyconf, |
| 777 | const u8 *addr, u32 iv32, u16 *phase1key) |
| 778 | { |
| 779 | u8 sta_id = IWL_INVALID_STATION; |
| 780 | unsigned long flags; |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 781 | int i; |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 782 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 783 | sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 784 | if (sta_id == IWL_INVALID_STATION) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 785 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 786 | addr); |
| 787 | return; |
| 788 | } |
| 789 | |
| 790 | if (iwl_scan_cancel(priv)) { |
| 791 | /* cancel scan failed, just live w/ bad key and rely |
| 792 | briefly on SW decryption */ |
| 793 | return; |
| 794 | } |
| 795 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 796 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 797 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 798 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; |
| 799 | |
| 800 | for (i = 0; i < 5; i++) |
| 801 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = |
| 802 | cpu_to_le16(phase1key[i]); |
| 803 | |
| 804 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 805 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 806 | |
| 807 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 808 | |
| 809 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 810 | |
| 811 | } |
| 812 | EXPORT_SYMBOL(iwl_update_tkip_key); |
| 813 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 814 | int iwl_remove_dynamic_key(struct iwl_priv *priv, |
| 815 | struct ieee80211_key_conf *keyconf, |
| 816 | u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 817 | { |
| 818 | unsigned long flags; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 819 | int ret = 0; |
| 820 | u16 key_flags; |
| 821 | u8 keyidx; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 822 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 823 | priv->key_mapping_key--; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 824 | |
| 825 | spin_lock_irqsave(&priv->sta_lock, flags); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 826 | key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); |
| 827 | keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; |
| 828 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 829 | IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 830 | keyconf->keyidx, sta_id); |
| 831 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 832 | if (keyconf->keyidx != keyidx) { |
| 833 | /* We need to remove a key with index different that the one |
| 834 | * in the uCode. This means that the key we need to remove has |
| 835 | * been replaced by another one with different index. |
| 836 | * Don't do anything and return ok |
| 837 | */ |
| 838 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 839 | return 0; |
| 840 | } |
| 841 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 842 | if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 843 | IWL_WARN(priv, "Removing wrong key %d 0x%x\n", |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 844 | keyconf->keyidx, key_flags); |
| 845 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 846 | return 0; |
| 847 | } |
| 848 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 849 | if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, |
| 850 | &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 851 | IWL_ERR(priv, "index %d not used in uCode key table.\n", |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 852 | priv->stations[sta_id].sta.key.key_offset); |
| 853 | memset(&priv->stations[sta_id].keyinfo, 0, |
Tomas Winkler | 6def976 | 2008-05-05 10:22:31 +0800 | [diff] [blame] | 854 | sizeof(struct iwl_hw_key)); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 855 | memset(&priv->stations[sta_id].sta.key, 0, |
| 856 | sizeof(struct iwl4965_keyinfo)); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 857 | priv->stations[sta_id].sta.key.key_flags = |
| 858 | STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; |
| 859 | priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 860 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 861 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 862 | |
Reinette Chatre | 99f1b01 | 2009-08-03 12:10:16 -0700 | [diff] [blame] | 863 | if (iwl_is_rfkill(priv)) { |
| 864 | IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n"); |
| 865 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 866 | return 0; |
| 867 | } |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 868 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 869 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 870 | return ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 871 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 872 | EXPORT_SYMBOL(iwl_remove_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 873 | |
| 874 | int iwl_set_dynamic_key(struct iwl_priv *priv, |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 875 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 876 | { |
| 877 | int ret; |
| 878 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 879 | priv->key_mapping_key++; |
| 880 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 881 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 882 | switch (keyconf->alg) { |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 883 | case ALG_CCMP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 884 | ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 885 | break; |
| 886 | case ALG_TKIP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 887 | ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 888 | break; |
| 889 | case ALG_WEP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 890 | ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 891 | break; |
| 892 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 893 | IWL_ERR(priv, |
| 894 | "Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 895 | ret = -EINVAL; |
| 896 | } |
| 897 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 898 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 899 | keyconf->alg, keyconf->keylen, keyconf->keyidx, |
| 900 | sta_id, ret); |
| 901 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 902 | return ret; |
| 903 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 904 | EXPORT_SYMBOL(iwl_set_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 905 | |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 906 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 907 | static void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 908 | struct iwl_link_quality_cmd *lq) |
| 909 | { |
| 910 | int i; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 911 | IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id); |
| 912 | IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n", |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 913 | lq->general_params.single_stream_ant_msk, |
| 914 | lq->general_params.dual_stream_ant_msk); |
| 915 | |
| 916 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 917 | IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n", |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 918 | i, lq->rs_table[i].rate_n_flags); |
| 919 | } |
| 920 | #else |
| 921 | static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 922 | struct iwl_link_quality_cmd *lq) |
| 923 | { |
| 924 | } |
| 925 | #endif |
| 926 | |
| 927 | int iwl_send_lq_cmd(struct iwl_priv *priv, |
| 928 | struct iwl_link_quality_cmd *lq, u8 flags) |
| 929 | { |
| 930 | struct iwl_host_cmd cmd = { |
| 931 | .id = REPLY_TX_LINK_QUALITY_CMD, |
| 932 | .len = sizeof(struct iwl_link_quality_cmd), |
| 933 | .meta.flags = flags, |
| 934 | .data = lq, |
| 935 | }; |
| 936 | |
| 937 | if ((lq->sta_id == 0xFF) && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 938 | (priv->iw_mode == NL80211_IFTYPE_ADHOC)) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 939 | return -EINVAL; |
| 940 | |
| 941 | if (lq->sta_id == 0xFF) |
| 942 | lq->sta_id = IWL_AP_ID; |
| 943 | |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 944 | iwl_dump_lq_cmd(priv, lq); |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 945 | |
Ron Rindjunsky | 36e1f16 | 2008-06-30 17:23:13 +0800 | [diff] [blame] | 946 | if (iwl_is_associated(priv) && priv->assoc_station_added) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 947 | return iwl_send_cmd(priv, &cmd); |
| 948 | |
| 949 | return 0; |
| 950 | } |
| 951 | EXPORT_SYMBOL(iwl_send_lq_cmd); |
| 952 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 953 | /** |
| 954 | * iwl_sta_init_lq - Initialize a station's hardware rate table |
| 955 | * |
| 956 | * The uCode's station table contains a table of fallback rates |
| 957 | * for automatic fallback during transmission. |
| 958 | * |
| 959 | * NOTE: This sets up a default set of values. These will be replaced later |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 960 | * if the driver's iwl-agn-rs rate scaling algorithm is used, instead of |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 961 | * rc80211_simple. |
| 962 | * |
| 963 | * NOTE: Run REPLY_ADD_STA command to set up station table entry, before |
| 964 | * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, |
| 965 | * which requires station table entry to exist). |
| 966 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 967 | static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 968 | { |
| 969 | int i, r; |
| 970 | struct iwl_link_quality_cmd link_cmd = { |
| 971 | .reserved1 = 0, |
| 972 | }; |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 973 | u32 rate_flags; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 974 | |
| 975 | /* Set up the rate scaling to start at selected rate, fall back |
| 976 | * all the way down to 1M in IEEE order, and then spin on 1M */ |
| 977 | if (is_ap) |
| 978 | r = IWL_RATE_54M_INDEX; |
| 979 | else if (priv->band == IEEE80211_BAND_5GHZ) |
| 980 | r = IWL_RATE_6M_INDEX; |
| 981 | else |
| 982 | r = IWL_RATE_1M_INDEX; |
| 983 | |
| 984 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { |
| 985 | rate_flags = 0; |
| 986 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) |
| 987 | rate_flags |= RATE_MCS_CCK_MSK; |
| 988 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 989 | rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << |
| 990 | RATE_MCS_ANT_POS; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 991 | |
| 992 | link_cmd.rs_table[i].rate_n_flags = |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 993 | iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 994 | r = iwl_get_prev_ieee_rate(r); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 995 | } |
| 996 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 997 | link_cmd.general_params.single_stream_ant_msk = |
| 998 | first_antenna(priv->hw_params.valid_tx_ant); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 999 | link_cmd.general_params.dual_stream_ant_msk = 3; |
Wey-Yi Guy | 13c33a0 | 2009-06-03 11:44:11 -0700 | [diff] [blame] | 1000 | link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; |
| 1001 | link_cmd.agg_params.agg_time_limit = |
| 1002 | cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1003 | |
| 1004 | /* Update the rate scaling for control frame Tx to AP */ |
| 1005 | link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id; |
| 1006 | |
| 1007 | iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, |
| 1008 | sizeof(link_cmd), &link_cmd, NULL); |
| 1009 | } |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 1010 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1011 | /** |
| 1012 | * iwl_rxon_add_station - add station into station table. |
| 1013 | * |
| 1014 | * there is only one AP station with id= IWL_AP_ID |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 1015 | * NOTE: mutex must be held before calling this function |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1016 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1017 | int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1018 | { |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1019 | struct ieee80211_sta *sta; |
| 1020 | struct ieee80211_sta_ht_cap ht_config; |
| 1021 | struct ieee80211_sta_ht_cap *cur_ht_config = NULL; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1022 | u8 sta_id; |
| 1023 | |
| 1024 | /* Add station to device's station table */ |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1025 | |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1026 | /* |
| 1027 | * XXX: This check is definitely not correct, if we're an AP |
| 1028 | * it'll always be false which is not what we want, but |
| 1029 | * it doesn't look like iwlagn is prepared to be an HT |
| 1030 | * AP anyway. |
| 1031 | */ |
| 1032 | if (priv->current_ht_config.is_ht) { |
| 1033 | rcu_read_lock(); |
| 1034 | sta = ieee80211_find_sta(priv->hw, addr); |
| 1035 | if (sta) { |
| 1036 | memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config)); |
| 1037 | cur_ht_config = &ht_config; |
| 1038 | } |
| 1039 | rcu_read_unlock(); |
| 1040 | } |
| 1041 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1042 | sta_id = iwl_add_station(priv, addr, is_ap, CMD_SYNC, cur_ht_config); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1043 | |
| 1044 | /* Set up default rate scaling table in device's station table */ |
| 1045 | iwl_sta_init_lq(priv, addr, is_ap); |
| 1046 | |
| 1047 | return sta_id; |
| 1048 | } |
| 1049 | EXPORT_SYMBOL(iwl_rxon_add_station); |
| 1050 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1051 | /** |
| 1052 | * iwl_get_sta_id - Find station's index within station table |
| 1053 | * |
| 1054 | * If new IBSS station, create new entry in station table |
| 1055 | */ |
| 1056 | int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 1057 | { |
| 1058 | int sta_id; |
| 1059 | u16 fc = le16_to_cpu(hdr->frame_control); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1060 | |
| 1061 | /* If this frame is broadcast or management, use broadcast station id */ |
| 1062 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
| 1063 | is_multicast_ether_addr(hdr->addr1)) |
| 1064 | return priv->hw_params.bcast_sta_id; |
| 1065 | |
| 1066 | switch (priv->iw_mode) { |
| 1067 | |
| 1068 | /* If we are a client station in a BSS network, use the special |
| 1069 | * AP station entry (that's the only station we communicate with) */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1070 | case NL80211_IFTYPE_STATION: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1071 | return IWL_AP_ID; |
| 1072 | |
| 1073 | /* If we are an AP, then find the station, or use BCAST */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1074 | case NL80211_IFTYPE_AP: |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1075 | sta_id = iwl_find_station(priv, hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1076 | if (sta_id != IWL_INVALID_STATION) |
| 1077 | return sta_id; |
| 1078 | return priv->hw_params.bcast_sta_id; |
| 1079 | |
| 1080 | /* If this frame is going out to an IBSS network, find the station, |
| 1081 | * or create a new station table entry */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1082 | case NL80211_IFTYPE_ADHOC: |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1083 | sta_id = iwl_find_station(priv, hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1084 | if (sta_id != IWL_INVALID_STATION) |
| 1085 | return sta_id; |
| 1086 | |
| 1087 | /* Create new station table entry */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1088 | sta_id = iwl_add_station(priv, hdr->addr1, false, |
| 1089 | CMD_ASYNC, NULL); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1090 | |
| 1091 | if (sta_id != IWL_INVALID_STATION) |
| 1092 | return sta_id; |
| 1093 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1094 | IWL_DEBUG_DROP(priv, "Station %pM not in station map. " |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1095 | "Defaulting to broadcast...\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1096 | hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1097 | iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
| 1098 | return priv->hw_params.bcast_sta_id; |
| 1099 | |
| 1100 | default: |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1101 | IWL_WARN(priv, "Unknown mode of operation: %d\n", |
| 1102 | priv->iw_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1103 | return priv->hw_params.bcast_sta_id; |
| 1104 | } |
| 1105 | } |
| 1106 | EXPORT_SYMBOL(iwl_get_sta_id); |
| 1107 | |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1108 | /** |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1109 | * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1110 | */ |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1111 | void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1112 | { |
| 1113 | unsigned long flags; |
| 1114 | |
| 1115 | /* Remove "disable" flag, to enable Tx for this TID */ |
| 1116 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1117 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; |
| 1118 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); |
| 1119 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1120 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1121 | |
| 1122 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 1123 | } |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1124 | EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid); |
| 1125 | |
| 1126 | int iwl_sta_rx_agg_start(struct iwl_priv *priv, |
| 1127 | const u8 *addr, int tid, u16 ssn) |
| 1128 | { |
| 1129 | unsigned long flags; |
| 1130 | int sta_id; |
| 1131 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1132 | sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1133 | if (sta_id == IWL_INVALID_STATION) |
| 1134 | return -ENXIO; |
| 1135 | |
| 1136 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1137 | priv->stations[sta_id].sta.station_flags_msk = 0; |
| 1138 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; |
| 1139 | priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; |
| 1140 | priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); |
| 1141 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1142 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1143 | |
| 1144 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
| 1145 | CMD_ASYNC); |
| 1146 | } |
| 1147 | EXPORT_SYMBOL(iwl_sta_rx_agg_start); |
| 1148 | |
| 1149 | int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid) |
| 1150 | { |
| 1151 | unsigned long flags; |
| 1152 | int sta_id; |
| 1153 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1154 | sta_id = iwl_find_station(priv, addr); |
Wey-Yi Guy | a2f1cbe | 2009-03-17 21:51:52 -0700 | [diff] [blame] | 1155 | if (sta_id == IWL_INVALID_STATION) { |
| 1156 | IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1157 | return -ENXIO; |
Wey-Yi Guy | a2f1cbe | 2009-03-17 21:51:52 -0700 | [diff] [blame] | 1158 | } |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1159 | |
| 1160 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1161 | priv->stations[sta_id].sta.station_flags_msk = 0; |
| 1162 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; |
| 1163 | priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; |
| 1164 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1165 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1166 | |
| 1167 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
| 1168 | CMD_ASYNC); |
| 1169 | } |
| 1170 | EXPORT_SYMBOL(iwl_sta_rx_agg_stop); |
| 1171 | |
| 1172 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
| 1173 | { |
| 1174 | unsigned long flags; |
| 1175 | |
| 1176 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1177 | priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; |
| 1178 | priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; |
| 1179 | priv->stations[sta_id].sta.sta.modify_mask = 0; |
| 1180 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1181 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1182 | |
| 1183 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 1184 | } |
| 1185 | |
| 1186 | void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr) |
| 1187 | { |
| 1188 | /* FIXME: need locking over ps_status ??? */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1189 | u8 sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1190 | |
| 1191 | if (sta_id != IWL_INVALID_STATION) { |
| 1192 | u8 sta_awake = priv->stations[sta_id]. |
| 1193 | ps_status == STA_PS_STATUS_WAKE; |
| 1194 | |
| 1195 | if (sta_awake && ps_bit) |
| 1196 | priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP; |
| 1197 | else if (!sta_awake && !ps_bit) { |
| 1198 | iwl_sta_modify_ps_wake(priv, sta_id); |
| 1199 | priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE; |
| 1200 | } |
| 1201 | } |
| 1202 | } |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1203 | |