Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2008 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 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> |
| 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" |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 36 | #include "iwl-helpers.h" |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 37 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 38 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 39 | #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ |
| 40 | #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 41 | |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 42 | u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr) |
| 43 | { |
| 44 | int i; |
| 45 | int start = 0; |
| 46 | int ret = IWL_INVALID_STATION; |
| 47 | unsigned long flags; |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 48 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 49 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || |
| 50 | (priv->iw_mode == NL80211_IFTYPE_AP)) |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 51 | start = IWL_STA_ID; |
| 52 | |
| 53 | if (is_broadcast_ether_addr(addr)) |
| 54 | return priv->hw_params.bcast_sta_id; |
| 55 | |
| 56 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 57 | for (i = start; i < priv->hw_params.max_stations; i++) |
| 58 | if (priv->stations[i].used && |
| 59 | (!compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 60 | addr))) { |
| 61 | ret = i; |
| 62 | goto out; |
| 63 | } |
| 64 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 65 | IWL_DEBUG_ASSOC_LIMIT("can not find STA %pM total %d\n", |
| 66 | addr, priv->num_stations); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 67 | |
| 68 | out: |
| 69 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 70 | return ret; |
| 71 | } |
| 72 | EXPORT_SYMBOL(iwl_find_station); |
| 73 | |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 74 | int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 75 | { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 76 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 77 | return IWL_AP_ID; |
| 78 | } else { |
| 79 | u8 *da = ieee80211_get_DA(hdr); |
| 80 | return iwl_find_station(priv, da); |
| 81 | } |
| 82 | } |
| 83 | EXPORT_SYMBOL(iwl_get_ra_sta_id); |
| 84 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 85 | static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) |
| 86 | { |
| 87 | unsigned long flags; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 88 | |
| 89 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 90 | |
| 91 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) |
| 92 | IWL_ERROR("ACTIVATE a non DRIVER active station %d\n", sta_id); |
| 93 | |
| 94 | priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 95 | IWL_DEBUG_ASSOC("Added STA to Ucode: %pM\n", |
| 96 | priv->stations[sta_id].sta.sta.addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 97 | |
| 98 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 99 | } |
| 100 | |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 101 | static int iwl_add_sta_callback(struct iwl_priv *priv, |
| 102 | struct iwl_cmd *cmd, struct sk_buff *skb) |
| 103 | { |
| 104 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 105 | struct iwl_addsta_cmd *addsta = |
| 106 | (struct iwl_addsta_cmd *)cmd->cmd.payload; |
| 107 | u8 sta_id = addsta->sta.sta_id; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 108 | |
| 109 | if (!skb) { |
| 110 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); |
| 111 | return 1; |
| 112 | } |
| 113 | |
| 114 | res = (struct iwl_rx_packet *)skb->data; |
| 115 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
| 116 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", |
| 117 | res->hdr.flags); |
| 118 | return 1; |
| 119 | } |
| 120 | |
| 121 | switch (res->u.add_sta.status) { |
| 122 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 123 | iwl_sta_ucode_activate(priv, sta_id); |
| 124 | /* fall through */ |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 125 | default: |
| 126 | IWL_DEBUG_HC("Received REPLY_ADD_STA:(0x%08X)\n", |
| 127 | res->u.add_sta.status); |
| 128 | break; |
| 129 | } |
| 130 | |
| 131 | /* We didn't cache the SKB; let the caller free it */ |
| 132 | return 1; |
| 133 | } |
| 134 | |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 135 | int iwl_send_add_sta(struct iwl_priv *priv, |
| 136 | struct iwl_addsta_cmd *sta, u8 flags) |
| 137 | { |
| 138 | struct iwl_rx_packet *res = NULL; |
| 139 | int ret = 0; |
| 140 | u8 data[sizeof(*sta)]; |
| 141 | struct iwl_host_cmd cmd = { |
| 142 | .id = REPLY_ADD_STA, |
| 143 | .meta.flags = flags, |
| 144 | .data = data, |
| 145 | }; |
| 146 | |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 147 | if (flags & CMD_ASYNC) |
| 148 | cmd.meta.u.callback = iwl_add_sta_callback; |
| 149 | else |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 150 | cmd.meta.flags |= CMD_WANT_SKB; |
| 151 | |
| 152 | cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data); |
| 153 | ret = iwl_send_cmd(priv, &cmd); |
| 154 | |
| 155 | if (ret || (flags & CMD_ASYNC)) |
| 156 | return ret; |
| 157 | |
| 158 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
| 159 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
| 160 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", |
| 161 | res->hdr.flags); |
| 162 | ret = -EIO; |
| 163 | } |
| 164 | |
| 165 | if (ret == 0) { |
| 166 | switch (res->u.add_sta.status) { |
| 167 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 168 | iwl_sta_ucode_activate(priv, sta->sta.sta_id); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 169 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); |
| 170 | break; |
| 171 | default: |
| 172 | ret = -EIO; |
| 173 | IWL_WARNING("REPLY_ADD_STA failed\n"); |
| 174 | break; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | priv->alloc_rxb_skb--; |
| 179 | dev_kfree_skb_any(cmd.meta.u.skb); |
| 180 | |
| 181 | return ret; |
| 182 | } |
| 183 | EXPORT_SYMBOL(iwl_send_add_sta); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 184 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 185 | 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] | 186 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 187 | { |
| 188 | __le32 sta_flags; |
| 189 | u8 mimo_ps_mode; |
| 190 | |
| 191 | if (!sta_ht_inf || !sta_ht_inf->ht_supported) |
| 192 | goto done; |
| 193 | |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 194 | 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] | 195 | |
| 196 | sta_flags = priv->stations[index].sta.station_flags; |
| 197 | |
| 198 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); |
| 199 | |
| 200 | switch (mimo_ps_mode) { |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 201 | case WLAN_HT_CAP_SM_PS_STATIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 202 | sta_flags |= STA_FLG_MIMO_DIS_MSK; |
| 203 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 204 | case WLAN_HT_CAP_SM_PS_DYNAMIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 205 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
| 206 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 207 | case WLAN_HT_CAP_SM_PS_DISABLED: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 208 | break; |
| 209 | default: |
Jiri Slaby | 6f14792 | 2008-08-11 23:49:41 +0200 | [diff] [blame] | 210 | IWL_WARNING("Invalid MIMO PS mode %d\n", mimo_ps_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 211 | break; |
| 212 | } |
| 213 | |
| 214 | sta_flags |= cpu_to_le32( |
| 215 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); |
| 216 | |
| 217 | sta_flags |= cpu_to_le32( |
| 218 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); |
| 219 | |
| 220 | if (iwl_is_fat_tx_allowed(priv, sta_ht_inf)) |
| 221 | sta_flags |= STA_FLG_FAT_EN_MSK; |
| 222 | else |
| 223 | sta_flags &= ~STA_FLG_FAT_EN_MSK; |
| 224 | |
| 225 | priv->stations[index].sta.station_flags = sta_flags; |
| 226 | done: |
| 227 | return; |
| 228 | } |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 229 | |
| 230 | /** |
| 231 | * iwl_add_station_flags - Add station to tables in driver and device |
| 232 | */ |
| 233 | u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 234 | u8 flags, struct ieee80211_sta_ht_cap *ht_info) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 235 | { |
| 236 | int i; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 237 | int sta_id = IWL_INVALID_STATION; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 238 | struct iwl_station_entry *station; |
| 239 | unsigned long flags_spin; |
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; |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 275 | IWL_DEBUG_ASSOC("Add STA to driver ID %d: %pM\n", |
| 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 | |
| 291 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
| 292 | |
| 293 | /* Add station to device's station table */ |
| 294 | iwl_send_add_sta(priv, &station->sta, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 295 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 296 | |
| 297 | } |
| 298 | EXPORT_SYMBOL(iwl_add_station_flags); |
| 299 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 300 | 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] | 301 | { |
| 302 | unsigned long flags; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 303 | u8 sta_id = iwl_find_station(priv, addr); |
| 304 | |
| 305 | BUG_ON(sta_id == IWL_INVALID_STATION); |
| 306 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 307 | IWL_DEBUG_ASSOC("Removed STA from Ucode: %pM\n", addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 308 | |
| 309 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 310 | |
| 311 | /* Ucode must be active and driver must be non active */ |
| 312 | if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE) |
| 313 | IWL_ERROR("removed non active STA %d\n", sta_id); |
| 314 | |
| 315 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; |
| 316 | |
| 317 | memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); |
| 318 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | static int iwl_remove_sta_callback(struct iwl_priv *priv, |
| 322 | struct iwl_cmd *cmd, struct sk_buff *skb) |
| 323 | { |
| 324 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 325 | struct iwl_rem_sta_cmd *rm_sta = |
| 326 | (struct iwl_rem_sta_cmd *)cmd->cmd.payload; |
| 327 | const char *addr = rm_sta->addr; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 328 | |
| 329 | if (!skb) { |
| 330 | IWL_ERROR("Error: Response NULL in REPLY_REMOVE_STA.\n"); |
| 331 | return 1; |
| 332 | } |
| 333 | |
| 334 | res = (struct iwl_rx_packet *)skb->data; |
| 335 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
| 336 | IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
| 337 | res->hdr.flags); |
| 338 | return 1; |
| 339 | } |
| 340 | |
| 341 | switch (res->u.rem_sta.status) { |
| 342 | case REM_STA_SUCCESS_MSK: |
| 343 | iwl_sta_ucode_deactivate(priv, addr); |
| 344 | break; |
| 345 | default: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 346 | IWL_ERROR("REPLY_REMOVE_STA failed\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 347 | break; |
| 348 | } |
| 349 | |
| 350 | /* We didn't cache the SKB; let the caller free it */ |
| 351 | return 1; |
| 352 | } |
| 353 | |
| 354 | static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, |
| 355 | u8 flags) |
| 356 | { |
| 357 | struct iwl_rx_packet *res = NULL; |
| 358 | int ret; |
| 359 | |
| 360 | struct iwl_rem_sta_cmd rm_sta_cmd; |
| 361 | |
| 362 | struct iwl_host_cmd cmd = { |
| 363 | .id = REPLY_REMOVE_STA, |
| 364 | .len = sizeof(struct iwl_rem_sta_cmd), |
| 365 | .meta.flags = flags, |
| 366 | .data = &rm_sta_cmd, |
| 367 | }; |
| 368 | |
| 369 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); |
| 370 | rm_sta_cmd.num_sta = 1; |
| 371 | memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN); |
| 372 | |
| 373 | if (flags & CMD_ASYNC) |
| 374 | cmd.meta.u.callback = iwl_remove_sta_callback; |
| 375 | else |
| 376 | cmd.meta.flags |= CMD_WANT_SKB; |
| 377 | ret = iwl_send_cmd(priv, &cmd); |
| 378 | |
| 379 | if (ret || (flags & CMD_ASYNC)) |
| 380 | return ret; |
| 381 | |
| 382 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
| 383 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
| 384 | IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
| 385 | res->hdr.flags); |
| 386 | ret = -EIO; |
| 387 | } |
| 388 | |
| 389 | if (!ret) { |
| 390 | switch (res->u.rem_sta.status) { |
| 391 | case REM_STA_SUCCESS_MSK: |
| 392 | iwl_sta_ucode_deactivate(priv, addr); |
| 393 | IWL_DEBUG_ASSOC("REPLY_REMOVE_STA PASSED\n"); |
| 394 | break; |
| 395 | default: |
| 396 | ret = -EIO; |
| 397 | IWL_ERROR("REPLY_REMOVE_STA failed\n"); |
| 398 | break; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | priv->alloc_rxb_skb--; |
| 403 | dev_kfree_skb_any(cmd.meta.u.skb); |
| 404 | |
| 405 | return ret; |
| 406 | } |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 407 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 408 | /** |
| 409 | * iwl_remove_station - Remove driver's knowledge of station. |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 410 | */ |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 411 | int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 412 | { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 413 | int sta_id = IWL_INVALID_STATION; |
| 414 | int i, ret = -EINVAL; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 415 | unsigned long flags; |
| 416 | |
| 417 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 418 | |
| 419 | if (is_ap) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 420 | sta_id = IWL_AP_ID; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 421 | else if (is_broadcast_ether_addr(addr)) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 422 | sta_id = priv->hw_params.bcast_sta_id; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 423 | else |
| 424 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) |
| 425 | if (priv->stations[i].used && |
| 426 | !compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 427 | addr)) { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 428 | sta_id = i; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 429 | break; |
| 430 | } |
| 431 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 432 | if (unlikely(sta_id == IWL_INVALID_STATION)) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 433 | goto out; |
| 434 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 435 | IWL_DEBUG_ASSOC("Removing STA from driver:%d %pM\n", |
| 436 | sta_id, addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 437 | |
| 438 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 439 | IWL_ERROR("Removing %pM but non DRIVER active\n", |
| 440 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 441 | goto out; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 442 | } |
| 443 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 444 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 445 | IWL_ERROR("Removing %pM but non UCODE active\n", |
| 446 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 447 | goto out; |
| 448 | } |
| 449 | |
| 450 | |
| 451 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; |
| 452 | |
| 453 | priv->num_stations--; |
| 454 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 455 | BUG_ON(priv->num_stations < 0); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 456 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 457 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 458 | |
| 459 | ret = iwl_send_remove_station(priv, addr, CMD_ASYNC); |
| 460 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 461 | out: |
| 462 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 463 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 464 | } |
| 465 | EXPORT_SYMBOL(iwl_remove_station); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 466 | |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 467 | static int iwl_get_free_ucode_key_index(struct iwl_priv *priv) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 468 | { |
| 469 | int i; |
| 470 | |
| 471 | for (i = 0; i < STA_KEY_MAX_NUM; i++) |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 472 | if (!test_and_set_bit(i, &priv->ucode_key_table)) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 473 | return i; |
| 474 | |
| 475 | return -1; |
| 476 | } |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 477 | |
| 478 | int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) |
| 479 | { |
| 480 | int i, not_empty = 0; |
| 481 | u8 buff[sizeof(struct iwl_wep_cmd) + |
| 482 | sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; |
| 483 | struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; |
| 484 | size_t cmd_size = sizeof(struct iwl_wep_cmd); |
| 485 | struct iwl_host_cmd cmd = { |
| 486 | .id = REPLY_WEPKEY, |
| 487 | .data = wep_cmd, |
| 488 | .meta.flags = CMD_ASYNC, |
| 489 | }; |
| 490 | |
| 491 | memset(wep_cmd, 0, cmd_size + |
| 492 | (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); |
| 493 | |
| 494 | for (i = 0; i < WEP_KEYS_MAX ; i++) { |
| 495 | wep_cmd->key[i].key_index = i; |
| 496 | if (priv->wep_keys[i].key_size) { |
| 497 | wep_cmd->key[i].key_offset = i; |
| 498 | not_empty = 1; |
| 499 | } else { |
| 500 | wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; |
| 501 | } |
| 502 | |
| 503 | wep_cmd->key[i].key_size = priv->wep_keys[i].key_size; |
| 504 | memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key, |
| 505 | priv->wep_keys[i].key_size); |
| 506 | } |
| 507 | |
| 508 | wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; |
| 509 | wep_cmd->num_keys = WEP_KEYS_MAX; |
| 510 | |
| 511 | cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; |
| 512 | |
| 513 | cmd.len = cmd_size; |
| 514 | |
| 515 | if (not_empty || send_if_empty) |
| 516 | return iwl_send_cmd(priv, &cmd); |
| 517 | else |
| 518 | return 0; |
| 519 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 520 | EXPORT_SYMBOL(iwl_send_static_wepkey_cmd); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 521 | |
| 522 | int iwl_remove_default_wep_key(struct iwl_priv *priv, |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 523 | struct ieee80211_key_conf *keyconf) |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 524 | { |
| 525 | int ret; |
| 526 | unsigned long flags; |
| 527 | |
| 528 | spin_lock_irqsave(&priv->sta_lock, flags); |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 529 | |
| 530 | if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table)) |
| 531 | IWL_ERROR("index %d not used in uCode key table.\n", |
| 532 | keyconf->keyidx); |
| 533 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 534 | priv->default_wep_key--; |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 535 | memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0])); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 536 | ret = iwl_send_static_wepkey_cmd(priv, 1); |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 537 | IWL_DEBUG_WEP("Remove default WEP key: idx=%d ret=%d\n", |
| 538 | keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 539 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 540 | |
| 541 | return ret; |
| 542 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 543 | EXPORT_SYMBOL(iwl_remove_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 544 | |
| 545 | int iwl_set_default_wep_key(struct iwl_priv *priv, |
| 546 | struct ieee80211_key_conf *keyconf) |
| 547 | { |
| 548 | int ret; |
| 549 | unsigned long flags; |
| 550 | |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 551 | if (keyconf->keylen != WEP_KEY_LEN_128 && |
| 552 | keyconf->keylen != WEP_KEY_LEN_64) { |
| 553 | IWL_DEBUG_WEP("Bad WEP key length %d\n", keyconf->keylen); |
| 554 | return -EINVAL; |
| 555 | } |
| 556 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 557 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 558 | keyconf->hw_key_idx = HW_KEY_DEFAULT; |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 559 | priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP; |
| 560 | |
| 561 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 562 | priv->default_wep_key++; |
| 563 | |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 564 | if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table)) |
| 565 | IWL_ERROR("index %d already used in uCode key table.\n", |
| 566 | keyconf->keyidx); |
| 567 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 568 | priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; |
| 569 | memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key, |
| 570 | keyconf->keylen); |
| 571 | |
| 572 | ret = iwl_send_static_wepkey_cmd(priv, 0); |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 573 | IWL_DEBUG_WEP("Set default WEP key: len=%d idx=%d ret=%d\n", |
| 574 | keyconf->keylen, keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 575 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 576 | |
| 577 | return ret; |
| 578 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 579 | EXPORT_SYMBOL(iwl_set_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 580 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 581 | static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 582 | struct ieee80211_key_conf *keyconf, |
| 583 | u8 sta_id) |
| 584 | { |
| 585 | unsigned long flags; |
| 586 | __le16 key_flags = 0; |
| 587 | int ret; |
| 588 | |
| 589 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 590 | |
| 591 | key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); |
| 592 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 593 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 594 | |
| 595 | if (keyconf->keylen == WEP_KEY_LEN_128) |
| 596 | key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; |
| 597 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 598 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 599 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 600 | |
| 601 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 602 | |
| 603 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 604 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 605 | priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; |
| 606 | |
| 607 | memcpy(priv->stations[sta_id].keyinfo.key, |
| 608 | keyconf->key, keyconf->keylen); |
| 609 | |
| 610 | memcpy(&priv->stations[sta_id].sta.key.key[3], |
| 611 | keyconf->key, keyconf->keylen); |
| 612 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 613 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 614 | == STA_KEY_FLG_NO_ENC) |
| 615 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 616 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 617 | /* else, we are overriding an existing key => no need to allocated room |
| 618 | * in uCode. */ |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 619 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 620 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 621 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 622 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 623 | |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 624 | 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] | 625 | |
| 626 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 627 | |
| 628 | return ret; |
| 629 | } |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 630 | |
| 631 | static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
| 632 | struct ieee80211_key_conf *keyconf, |
| 633 | u8 sta_id) |
| 634 | { |
| 635 | unsigned long flags; |
| 636 | __le16 key_flags = 0; |
| 637 | |
| 638 | key_flags |= (STA_KEY_FLG_CCMP | 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 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 642 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 643 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 644 | |
| 645 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 646 | |
| 647 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 648 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 649 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 650 | |
| 651 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, |
| 652 | keyconf->keylen); |
| 653 | |
| 654 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
| 655 | keyconf->keylen); |
| 656 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 657 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 658 | == STA_KEY_FLG_NO_ENC) |
| 659 | priv->stations[sta_id].sta.key.key_offset = |
| 660 | iwl_get_free_ucode_key_index(priv); |
| 661 | /* else, we are overriding an existing key => no need to allocated room |
| 662 | * in uCode. */ |
| 663 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 664 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 665 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 666 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 667 | |
| 668 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 669 | |
| 670 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 671 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, |
| 675 | struct ieee80211_key_conf *keyconf, |
| 676 | u8 sta_id) |
| 677 | { |
| 678 | unsigned long flags; |
| 679 | int ret = 0; |
| 680 | |
| 681 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 682 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 683 | |
| 684 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 685 | |
| 686 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 687 | priv->stations[sta_id].keyinfo.keylen = 16; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 688 | |
| 689 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 690 | == STA_KEY_FLG_NO_ENC) |
| 691 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 692 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 693 | /* else, we are overriding an existing key => no need to allocated room |
| 694 | * in uCode. */ |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 695 | |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 696 | /* This copy is actually not needed: we get the key with each TX */ |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 697 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); |
| 698 | |
| 699 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); |
| 700 | |
| 701 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 702 | |
| 703 | return ret; |
| 704 | } |
| 705 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 706 | int iwl_remove_dynamic_key(struct iwl_priv *priv, |
| 707 | struct ieee80211_key_conf *keyconf, |
| 708 | u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 709 | { |
| 710 | unsigned long flags; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 711 | int ret = 0; |
| 712 | u16 key_flags; |
| 713 | u8 keyidx; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 714 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 715 | priv->key_mapping_key--; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 716 | |
| 717 | spin_lock_irqsave(&priv->sta_lock, flags); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 718 | key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); |
| 719 | keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; |
| 720 | |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 721 | IWL_DEBUG_WEP("Remove dynamic key: idx=%d sta=%d\n", |
| 722 | keyconf->keyidx, sta_id); |
| 723 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 724 | if (keyconf->keyidx != keyidx) { |
| 725 | /* We need to remove a key with index different that the one |
| 726 | * in the uCode. This means that the key we need to remove has |
| 727 | * been replaced by another one with different index. |
| 728 | * Don't do anything and return ok |
| 729 | */ |
| 730 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 731 | return 0; |
| 732 | } |
| 733 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 734 | if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, |
| 735 | &priv->ucode_key_table)) |
| 736 | IWL_ERROR("index %d not used in uCode key table.\n", |
| 737 | priv->stations[sta_id].sta.key.key_offset); |
| 738 | memset(&priv->stations[sta_id].keyinfo, 0, |
Tomas Winkler | 6def976 | 2008-05-05 10:22:31 +0800 | [diff] [blame] | 739 | sizeof(struct iwl_hw_key)); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 740 | memset(&priv->stations[sta_id].sta.key, 0, |
| 741 | sizeof(struct iwl4965_keyinfo)); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 742 | priv->stations[sta_id].sta.key.key_flags = |
| 743 | STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; |
| 744 | priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 745 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 746 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 747 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 748 | 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] | 749 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 750 | return ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 751 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 752 | EXPORT_SYMBOL(iwl_remove_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 753 | |
| 754 | int iwl_set_dynamic_key(struct iwl_priv *priv, |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 755 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 756 | { |
| 757 | int ret; |
| 758 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 759 | priv->key_mapping_key++; |
| 760 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 761 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 762 | switch (keyconf->alg) { |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 763 | case ALG_CCMP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 764 | ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 765 | break; |
| 766 | case ALG_TKIP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 767 | ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 768 | break; |
| 769 | case ALG_WEP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 770 | ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 771 | break; |
| 772 | default: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 773 | IWL_ERROR("Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 774 | ret = -EINVAL; |
| 775 | } |
| 776 | |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 777 | IWL_DEBUG_WEP("Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", |
| 778 | keyconf->alg, keyconf->keylen, keyconf->keyidx, |
| 779 | sta_id, ret); |
| 780 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 781 | return ret; |
| 782 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 783 | EXPORT_SYMBOL(iwl_set_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 784 | |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 785 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 786 | static void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 787 | struct iwl_link_quality_cmd *lq) |
| 788 | { |
| 789 | int i; |
| 790 | IWL_DEBUG_RATE("lq station id 0x%x\n", lq->sta_id); |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 791 | IWL_DEBUG_RATE("lq ant 0x%X 0x%X\n", |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 792 | lq->general_params.single_stream_ant_msk, |
| 793 | lq->general_params.dual_stream_ant_msk); |
| 794 | |
| 795 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) |
| 796 | IWL_DEBUG_RATE("lq index %d 0x%X\n", |
| 797 | i, lq->rs_table[i].rate_n_flags); |
| 798 | } |
| 799 | #else |
| 800 | static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 801 | struct iwl_link_quality_cmd *lq) |
| 802 | { |
| 803 | } |
| 804 | #endif |
| 805 | |
| 806 | int iwl_send_lq_cmd(struct iwl_priv *priv, |
| 807 | struct iwl_link_quality_cmd *lq, u8 flags) |
| 808 | { |
| 809 | struct iwl_host_cmd cmd = { |
| 810 | .id = REPLY_TX_LINK_QUALITY_CMD, |
| 811 | .len = sizeof(struct iwl_link_quality_cmd), |
| 812 | .meta.flags = flags, |
| 813 | .data = lq, |
| 814 | }; |
| 815 | |
| 816 | if ((lq->sta_id == 0xFF) && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 817 | (priv->iw_mode == NL80211_IFTYPE_ADHOC)) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 818 | return -EINVAL; |
| 819 | |
| 820 | if (lq->sta_id == 0xFF) |
| 821 | lq->sta_id = IWL_AP_ID; |
| 822 | |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 823 | iwl_dump_lq_cmd(priv, lq); |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 824 | |
Ron Rindjunsky | 36e1f16 | 2008-06-30 17:23:13 +0800 | [diff] [blame] | 825 | if (iwl_is_associated(priv) && priv->assoc_station_added) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 826 | return iwl_send_cmd(priv, &cmd); |
| 827 | |
| 828 | return 0; |
| 829 | } |
| 830 | EXPORT_SYMBOL(iwl_send_lq_cmd); |
| 831 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 832 | /** |
| 833 | * iwl_sta_init_lq - Initialize a station's hardware rate table |
| 834 | * |
| 835 | * The uCode's station table contains a table of fallback rates |
| 836 | * for automatic fallback during transmission. |
| 837 | * |
| 838 | * 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] | 839 | * 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] | 840 | * rc80211_simple. |
| 841 | * |
| 842 | * NOTE: Run REPLY_ADD_STA command to set up station table entry, before |
| 843 | * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, |
| 844 | * which requires station table entry to exist). |
| 845 | */ |
| 846 | static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap) |
| 847 | { |
| 848 | int i, r; |
| 849 | struct iwl_link_quality_cmd link_cmd = { |
| 850 | .reserved1 = 0, |
| 851 | }; |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 852 | u32 rate_flags; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 853 | |
| 854 | /* Set up the rate scaling to start at selected rate, fall back |
| 855 | * all the way down to 1M in IEEE order, and then spin on 1M */ |
| 856 | if (is_ap) |
| 857 | r = IWL_RATE_54M_INDEX; |
| 858 | else if (priv->band == IEEE80211_BAND_5GHZ) |
| 859 | r = IWL_RATE_6M_INDEX; |
| 860 | else |
| 861 | r = IWL_RATE_1M_INDEX; |
| 862 | |
| 863 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { |
| 864 | rate_flags = 0; |
| 865 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) |
| 866 | rate_flags |= RATE_MCS_CCK_MSK; |
| 867 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 868 | rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << |
| 869 | RATE_MCS_ANT_POS; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 870 | |
| 871 | link_cmd.rs_table[i].rate_n_flags = |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 872 | iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 873 | r = iwl_get_prev_ieee_rate(r); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 874 | } |
| 875 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 876 | link_cmd.general_params.single_stream_ant_msk = |
| 877 | first_antenna(priv->hw_params.valid_tx_ant); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 878 | link_cmd.general_params.dual_stream_ant_msk = 3; |
| 879 | link_cmd.agg_params.agg_dis_start_th = 3; |
| 880 | link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000); |
| 881 | |
| 882 | /* Update the rate scaling for control frame Tx to AP */ |
| 883 | link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id; |
| 884 | |
| 885 | iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, |
| 886 | sizeof(link_cmd), &link_cmd, NULL); |
| 887 | } |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 888 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 889 | /** |
| 890 | * iwl_rxon_add_station - add station into station table. |
| 891 | * |
| 892 | * there is only one AP station with id= IWL_AP_ID |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 893 | * NOTE: mutex must be held before calling this function |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 894 | */ |
| 895 | int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
| 896 | { |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 897 | struct ieee80211_sta *sta; |
| 898 | struct ieee80211_sta_ht_cap ht_config; |
| 899 | struct ieee80211_sta_ht_cap *cur_ht_config = NULL; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 900 | u8 sta_id; |
| 901 | |
| 902 | /* Add station to device's station table */ |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 903 | |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 904 | /* |
| 905 | * XXX: This check is definitely not correct, if we're an AP |
| 906 | * it'll always be false which is not what we want, but |
| 907 | * it doesn't look like iwlagn is prepared to be an HT |
| 908 | * AP anyway. |
| 909 | */ |
| 910 | if (priv->current_ht_config.is_ht) { |
| 911 | rcu_read_lock(); |
| 912 | sta = ieee80211_find_sta(priv->hw, addr); |
| 913 | if (sta) { |
| 914 | memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config)); |
| 915 | cur_ht_config = &ht_config; |
| 916 | } |
| 917 | rcu_read_unlock(); |
| 918 | } |
| 919 | |
| 920 | sta_id = iwl_add_station_flags(priv, addr, is_ap, |
| 921 | 0, cur_ht_config); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 922 | |
| 923 | /* Set up default rate scaling table in device's station table */ |
| 924 | iwl_sta_init_lq(priv, addr, is_ap); |
| 925 | |
| 926 | return sta_id; |
| 927 | } |
| 928 | EXPORT_SYMBOL(iwl_rxon_add_station); |
| 929 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 930 | /** |
| 931 | * iwl_get_sta_id - Find station's index within station table |
| 932 | * |
| 933 | * If new IBSS station, create new entry in station table |
| 934 | */ |
| 935 | int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 936 | { |
| 937 | int sta_id; |
| 938 | u16 fc = le16_to_cpu(hdr->frame_control); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 939 | |
| 940 | /* If this frame is broadcast or management, use broadcast station id */ |
| 941 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
| 942 | is_multicast_ether_addr(hdr->addr1)) |
| 943 | return priv->hw_params.bcast_sta_id; |
| 944 | |
| 945 | switch (priv->iw_mode) { |
| 946 | |
| 947 | /* If we are a client station in a BSS network, use the special |
| 948 | * AP station entry (that's the only station we communicate with) */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 949 | case NL80211_IFTYPE_STATION: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 950 | return IWL_AP_ID; |
| 951 | |
| 952 | /* If we are an AP, then find the station, or use BCAST */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 953 | case NL80211_IFTYPE_AP: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 954 | sta_id = iwl_find_station(priv, hdr->addr1); |
| 955 | if (sta_id != IWL_INVALID_STATION) |
| 956 | return sta_id; |
| 957 | return priv->hw_params.bcast_sta_id; |
| 958 | |
| 959 | /* If this frame is going out to an IBSS network, find the station, |
| 960 | * or create a new station table entry */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 961 | case NL80211_IFTYPE_ADHOC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 962 | sta_id = iwl_find_station(priv, hdr->addr1); |
| 963 | if (sta_id != IWL_INVALID_STATION) |
| 964 | return sta_id; |
| 965 | |
| 966 | /* Create new station table entry */ |
| 967 | sta_id = iwl_add_station_flags(priv, hdr->addr1, |
| 968 | 0, CMD_ASYNC, NULL); |
| 969 | |
| 970 | if (sta_id != IWL_INVALID_STATION) |
| 971 | return sta_id; |
| 972 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 973 | IWL_DEBUG_DROP("Station %pM not in station map. " |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 974 | "Defaulting to broadcast...\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 975 | hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 976 | iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
| 977 | return priv->hw_params.bcast_sta_id; |
| 978 | |
Stefanik Gábor | d10c4ec | 2008-09-03 11:26:59 +0800 | [diff] [blame] | 979 | /* If we are in monitor mode, use BCAST. This is required for |
| 980 | * packet injection. */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 981 | case NL80211_IFTYPE_MONITOR: |
Stefanik Gábor | d10c4ec | 2008-09-03 11:26:59 +0800 | [diff] [blame] | 982 | return priv->hw_params.bcast_sta_id; |
| 983 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 984 | default: |
Jiri Slaby | 6f14792 | 2008-08-11 23:49:41 +0200 | [diff] [blame] | 985 | IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 986 | return priv->hw_params.bcast_sta_id; |
| 987 | } |
| 988 | } |
| 989 | EXPORT_SYMBOL(iwl_get_sta_id); |
| 990 | |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 991 | /** |
| 992 | * iwl_sta_modify_enable_tid_tx - Enable Tx for this TID in station table |
| 993 | */ |
| 994 | void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid) |
| 995 | { |
| 996 | unsigned long flags; |
| 997 | |
| 998 | /* Remove "disable" flag, to enable Tx for this TID */ |
| 999 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1000 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; |
| 1001 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); |
| 1002 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1003 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1004 | |
| 1005 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 1006 | } |
| 1007 | EXPORT_SYMBOL(iwl_sta_modify_enable_tid_tx); |
| 1008 | |