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6974e363 EG |
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> | |
947b13a7 | 31 | #include <linux/etherdevice.h> |
6974e363 | 32 | |
3e0d4cb1 | 33 | #include "iwl-dev.h" |
6974e363 EG |
34 | #include "iwl-core.h" |
35 | #include "iwl-sta.h" | |
6974e363 | 36 | #include "iwl-helpers.h" |
80fb47a1 | 37 | |
7a999bf0 | 38 | |
24e5c401 EG |
39 | #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ |
40 | #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ | |
7a999bf0 | 41 | |
947b13a7 TW |
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; | |
947b13a7 | 48 | |
05c914fe JB |
49 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || |
50 | (priv->iw_mode == NL80211_IFTYPE_AP)) | |
947b13a7 TW |
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 | ||
e174961c JB |
65 | IWL_DEBUG_ASSOC_LIMIT("can not find STA %pM total %d\n", |
66 | addr, priv->num_stations); | |
947b13a7 TW |
67 | |
68 | out: | |
69 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
70 | return ret; | |
71 | } | |
72 | EXPORT_SYMBOL(iwl_find_station); | |
73 | ||
be1f3ab6 EG |
74 | int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
75 | { | |
05c914fe | 76 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
be1f3ab6 EG |
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 | ||
24e5c401 EG |
85 | static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) |
86 | { | |
87 | unsigned long flags; | |
24e5c401 EG |
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; | |
e174961c JB |
95 | IWL_DEBUG_ASSOC("Added STA to Ucode: %pM\n", |
96 | priv->stations[sta_id].sta.sta.addr); | |
24e5c401 EG |
97 | |
98 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
99 | } | |
100 | ||
42132bce TW |
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; | |
24e5c401 | 105 | u8 sta_id = cmd->cmd.addsta.sta.sta_id; |
42132bce TW |
106 | |
107 | if (!skb) { | |
108 | IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n"); | |
109 | return 1; | |
110 | } | |
111 | ||
112 | res = (struct iwl_rx_packet *)skb->data; | |
113 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { | |
114 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
115 | res->hdr.flags); | |
116 | return 1; | |
117 | } | |
118 | ||
119 | switch (res->u.add_sta.status) { | |
120 | case ADD_STA_SUCCESS_MSK: | |
24e5c401 EG |
121 | iwl_sta_ucode_activate(priv, sta_id); |
122 | /* fall through */ | |
42132bce TW |
123 | default: |
124 | IWL_DEBUG_HC("Received REPLY_ADD_STA:(0x%08X)\n", | |
125 | res->u.add_sta.status); | |
126 | break; | |
127 | } | |
128 | ||
129 | /* We didn't cache the SKB; let the caller free it */ | |
130 | return 1; | |
131 | } | |
132 | ||
133636de TW |
133 | int iwl_send_add_sta(struct iwl_priv *priv, |
134 | struct iwl_addsta_cmd *sta, u8 flags) | |
135 | { | |
136 | struct iwl_rx_packet *res = NULL; | |
137 | int ret = 0; | |
138 | u8 data[sizeof(*sta)]; | |
139 | struct iwl_host_cmd cmd = { | |
140 | .id = REPLY_ADD_STA, | |
141 | .meta.flags = flags, | |
142 | .data = data, | |
143 | }; | |
144 | ||
42132bce TW |
145 | if (flags & CMD_ASYNC) |
146 | cmd.meta.u.callback = iwl_add_sta_callback; | |
147 | else | |
133636de TW |
148 | cmd.meta.flags |= CMD_WANT_SKB; |
149 | ||
150 | cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data); | |
151 | ret = iwl_send_cmd(priv, &cmd); | |
152 | ||
153 | if (ret || (flags & CMD_ASYNC)) | |
154 | return ret; | |
155 | ||
156 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; | |
157 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { | |
158 | IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n", | |
159 | res->hdr.flags); | |
160 | ret = -EIO; | |
161 | } | |
162 | ||
163 | if (ret == 0) { | |
164 | switch (res->u.add_sta.status) { | |
165 | case ADD_STA_SUCCESS_MSK: | |
24e5c401 | 166 | iwl_sta_ucode_activate(priv, sta->sta.sta_id); |
133636de TW |
167 | IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n"); |
168 | break; | |
169 | default: | |
170 | ret = -EIO; | |
171 | IWL_WARNING("REPLY_ADD_STA failed\n"); | |
172 | break; | |
173 | } | |
174 | } | |
175 | ||
176 | priv->alloc_rxb_skb--; | |
177 | dev_kfree_skb_any(cmd.meta.u.skb); | |
178 | ||
179 | return ret; | |
180 | } | |
181 | EXPORT_SYMBOL(iwl_send_add_sta); | |
947b13a7 | 182 | |
4f40e4d9 TW |
183 | static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, |
184 | struct ieee80211_ht_info *sta_ht_inf) | |
185 | { | |
186 | __le32 sta_flags; | |
187 | u8 mimo_ps_mode; | |
188 | ||
189 | if (!sta_ht_inf || !sta_ht_inf->ht_supported) | |
190 | goto done; | |
191 | ||
00c5ae2f | 192 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; |
4f40e4d9 TW |
193 | |
194 | sta_flags = priv->stations[index].sta.station_flags; | |
195 | ||
196 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); | |
197 | ||
198 | switch (mimo_ps_mode) { | |
00c5ae2f | 199 | case WLAN_HT_CAP_SM_PS_STATIC: |
4f40e4d9 TW |
200 | sta_flags |= STA_FLG_MIMO_DIS_MSK; |
201 | break; | |
00c5ae2f | 202 | case WLAN_HT_CAP_SM_PS_DYNAMIC: |
4f40e4d9 TW |
203 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
204 | break; | |
00c5ae2f | 205 | case WLAN_HT_CAP_SM_PS_DISABLED: |
4f40e4d9 TW |
206 | break; |
207 | default: | |
6f147926 | 208 | IWL_WARNING("Invalid MIMO PS mode %d\n", mimo_ps_mode); |
4f40e4d9 TW |
209 | break; |
210 | } | |
211 | ||
212 | sta_flags |= cpu_to_le32( | |
213 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); | |
214 | ||
215 | sta_flags |= cpu_to_le32( | |
216 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); | |
217 | ||
218 | if (iwl_is_fat_tx_allowed(priv, sta_ht_inf)) | |
219 | sta_flags |= STA_FLG_FAT_EN_MSK; | |
220 | else | |
221 | sta_flags &= ~STA_FLG_FAT_EN_MSK; | |
222 | ||
223 | priv->stations[index].sta.station_flags = sta_flags; | |
224 | done: | |
225 | return; | |
226 | } | |
4f40e4d9 TW |
227 | |
228 | /** | |
229 | * iwl_add_station_flags - Add station to tables in driver and device | |
230 | */ | |
231 | u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, | |
232 | u8 flags, struct ieee80211_ht_info *ht_info) | |
233 | { | |
234 | int i; | |
24e5c401 | 235 | int sta_id = IWL_INVALID_STATION; |
4f40e4d9 TW |
236 | struct iwl_station_entry *station; |
237 | unsigned long flags_spin; | |
4f40e4d9 TW |
238 | |
239 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
240 | if (is_ap) | |
24e5c401 | 241 | sta_id = IWL_AP_ID; |
4f40e4d9 | 242 | else if (is_broadcast_ether_addr(addr)) |
24e5c401 | 243 | sta_id = priv->hw_params.bcast_sta_id; |
4f40e4d9 TW |
244 | else |
245 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { | |
246 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
247 | addr)) { | |
24e5c401 | 248 | sta_id = i; |
4f40e4d9 TW |
249 | break; |
250 | } | |
251 | ||
252 | if (!priv->stations[i].used && | |
24e5c401 EG |
253 | sta_id == IWL_INVALID_STATION) |
254 | sta_id = i; | |
4f40e4d9 TW |
255 | } |
256 | ||
4f40e4d9 | 257 | /* These two conditions have the same outcome, but keep them separate |
24e5c401 EG |
258 | since they have different meanings */ |
259 | if (unlikely(sta_id == IWL_INVALID_STATION)) { | |
4f40e4d9 | 260 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
24e5c401 | 261 | return sta_id; |
4f40e4d9 TW |
262 | } |
263 | ||
24e5c401 EG |
264 | if (priv->stations[sta_id].used && |
265 | !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) { | |
4f40e4d9 | 266 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
24e5c401 | 267 | return sta_id; |
4f40e4d9 TW |
268 | } |
269 | ||
270 | ||
24e5c401 EG |
271 | station = &priv->stations[sta_id]; |
272 | station->used = IWL_STA_DRIVER_ACTIVE; | |
e174961c JB |
273 | IWL_DEBUG_ASSOC("Add STA to driver ID %d: %pM\n", |
274 | sta_id, addr); | |
4f40e4d9 TW |
275 | priv->num_stations++; |
276 | ||
277 | /* Set up the REPLY_ADD_STA command to send to device */ | |
278 | memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd)); | |
279 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); | |
280 | station->sta.mode = 0; | |
24e5c401 | 281 | station->sta.sta.sta_id = sta_id; |
4f40e4d9 TW |
282 | station->sta.station_flags = 0; |
283 | ||
284 | /* BCAST station and IBSS stations do not work in HT mode */ | |
24e5c401 | 285 | if (sta_id != priv->hw_params.bcast_sta_id && |
05c914fe | 286 | priv->iw_mode != NL80211_IFTYPE_ADHOC) |
24e5c401 | 287 | iwl_set_ht_add_station(priv, sta_id, ht_info); |
4f40e4d9 TW |
288 | |
289 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
290 | ||
291 | /* Add station to device's station table */ | |
292 | iwl_send_add_sta(priv, &station->sta, flags); | |
24e5c401 | 293 | return sta_id; |
4f40e4d9 TW |
294 | |
295 | } | |
296 | EXPORT_SYMBOL(iwl_add_station_flags); | |
297 | ||
24e5c401 | 298 | static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr) |
7a999bf0 TW |
299 | { |
300 | unsigned long flags; | |
24e5c401 EG |
301 | u8 sta_id = iwl_find_station(priv, addr); |
302 | ||
303 | BUG_ON(sta_id == IWL_INVALID_STATION); | |
304 | ||
e174961c | 305 | IWL_DEBUG_ASSOC("Removed STA from Ucode: %pM\n", addr); |
24e5c401 EG |
306 | |
307 | spin_lock_irqsave(&priv->sta_lock, flags); | |
308 | ||
309 | /* Ucode must be active and driver must be non active */ | |
310 | if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE) | |
311 | IWL_ERROR("removed non active STA %d\n", sta_id); | |
312 | ||
313 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; | |
314 | ||
315 | memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); | |
316 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
7a999bf0 TW |
317 | } |
318 | ||
319 | static int iwl_remove_sta_callback(struct iwl_priv *priv, | |
320 | struct iwl_cmd *cmd, struct sk_buff *skb) | |
321 | { | |
322 | struct iwl_rx_packet *res = NULL; | |
323 | const char *addr = cmd->cmd.rm_sta.addr; | |
324 | ||
325 | if (!skb) { | |
326 | IWL_ERROR("Error: Response NULL in REPLY_REMOVE_STA.\n"); | |
327 | return 1; | |
328 | } | |
329 | ||
330 | res = (struct iwl_rx_packet *)skb->data; | |
331 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { | |
332 | IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n", | |
333 | res->hdr.flags); | |
334 | return 1; | |
335 | } | |
336 | ||
337 | switch (res->u.rem_sta.status) { | |
338 | case REM_STA_SUCCESS_MSK: | |
339 | iwl_sta_ucode_deactivate(priv, addr); | |
340 | break; | |
341 | default: | |
24e5c401 | 342 | IWL_ERROR("REPLY_REMOVE_STA failed\n"); |
7a999bf0 TW |
343 | break; |
344 | } | |
345 | ||
346 | /* We didn't cache the SKB; let the caller free it */ | |
347 | return 1; | |
348 | } | |
349 | ||
350 | static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, | |
351 | u8 flags) | |
352 | { | |
353 | struct iwl_rx_packet *res = NULL; | |
354 | int ret; | |
355 | ||
356 | struct iwl_rem_sta_cmd rm_sta_cmd; | |
357 | ||
358 | struct iwl_host_cmd cmd = { | |
359 | .id = REPLY_REMOVE_STA, | |
360 | .len = sizeof(struct iwl_rem_sta_cmd), | |
361 | .meta.flags = flags, | |
362 | .data = &rm_sta_cmd, | |
363 | }; | |
364 | ||
365 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); | |
366 | rm_sta_cmd.num_sta = 1; | |
367 | memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN); | |
368 | ||
369 | if (flags & CMD_ASYNC) | |
370 | cmd.meta.u.callback = iwl_remove_sta_callback; | |
371 | else | |
372 | cmd.meta.flags |= CMD_WANT_SKB; | |
373 | ret = iwl_send_cmd(priv, &cmd); | |
374 | ||
375 | if (ret || (flags & CMD_ASYNC)) | |
376 | return ret; | |
377 | ||
378 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; | |
379 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { | |
380 | IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n", | |
381 | res->hdr.flags); | |
382 | ret = -EIO; | |
383 | } | |
384 | ||
385 | if (!ret) { | |
386 | switch (res->u.rem_sta.status) { | |
387 | case REM_STA_SUCCESS_MSK: | |
388 | iwl_sta_ucode_deactivate(priv, addr); | |
389 | IWL_DEBUG_ASSOC("REPLY_REMOVE_STA PASSED\n"); | |
390 | break; | |
391 | default: | |
392 | ret = -EIO; | |
393 | IWL_ERROR("REPLY_REMOVE_STA failed\n"); | |
394 | break; | |
395 | } | |
396 | } | |
397 | ||
398 | priv->alloc_rxb_skb--; | |
399 | dev_kfree_skb_any(cmd.meta.u.skb); | |
400 | ||
401 | return ret; | |
402 | } | |
be1f3ab6 | 403 | |
7a999bf0 TW |
404 | /** |
405 | * iwl_remove_station - Remove driver's knowledge of station. | |
7a999bf0 | 406 | */ |
24e5c401 | 407 | int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
7a999bf0 | 408 | { |
24e5c401 EG |
409 | int sta_id = IWL_INVALID_STATION; |
410 | int i, ret = -EINVAL; | |
7a999bf0 TW |
411 | unsigned long flags; |
412 | ||
413 | spin_lock_irqsave(&priv->sta_lock, flags); | |
414 | ||
415 | if (is_ap) | |
24e5c401 | 416 | sta_id = IWL_AP_ID; |
7a999bf0 | 417 | else if (is_broadcast_ether_addr(addr)) |
24e5c401 | 418 | sta_id = priv->hw_params.bcast_sta_id; |
7a999bf0 TW |
419 | else |
420 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) | |
421 | if (priv->stations[i].used && | |
422 | !compare_ether_addr(priv->stations[i].sta.sta.addr, | |
423 | addr)) { | |
24e5c401 | 424 | sta_id = i; |
7a999bf0 TW |
425 | break; |
426 | } | |
427 | ||
24e5c401 | 428 | if (unlikely(sta_id == IWL_INVALID_STATION)) |
7a999bf0 TW |
429 | goto out; |
430 | ||
e174961c JB |
431 | IWL_DEBUG_ASSOC("Removing STA from driver:%d %pM\n", |
432 | sta_id, addr); | |
24e5c401 EG |
433 | |
434 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { | |
e174961c JB |
435 | IWL_ERROR("Removing %pM but non DRIVER active\n", |
436 | addr); | |
24e5c401 EG |
437 | goto out; |
438 | } | |
439 | ||
440 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { | |
e174961c JB |
441 | IWL_ERROR("Removing %pM but non UCODE active\n", |
442 | addr); | |
24e5c401 | 443 | goto out; |
7a999bf0 TW |
444 | } |
445 | ||
24e5c401 EG |
446 | |
447 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; | |
448 | ||
449 | priv->num_stations--; | |
450 | ||
7a999bf0 | 451 | BUG_ON(priv->num_stations < 0); |
24e5c401 | 452 | |
7a999bf0 | 453 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
24e5c401 EG |
454 | |
455 | ret = iwl_send_remove_station(priv, addr, CMD_ASYNC); | |
456 | return ret; | |
7a999bf0 TW |
457 | out: |
458 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
24e5c401 | 459 | return ret; |
7a999bf0 TW |
460 | } |
461 | EXPORT_SYMBOL(iwl_remove_station); | |
24e5c401 | 462 | |
be1f3ab6 | 463 | static int iwl_get_free_ucode_key_index(struct iwl_priv *priv) |
80fb47a1 EG |
464 | { |
465 | int i; | |
466 | ||
467 | for (i = 0; i < STA_KEY_MAX_NUM; i++) | |
77bab602 | 468 | if (!test_and_set_bit(i, &priv->ucode_key_table)) |
80fb47a1 EG |
469 | return i; |
470 | ||
471 | return -1; | |
472 | } | |
6974e363 EG |
473 | |
474 | int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) | |
475 | { | |
476 | int i, not_empty = 0; | |
477 | u8 buff[sizeof(struct iwl_wep_cmd) + | |
478 | sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; | |
479 | struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; | |
480 | size_t cmd_size = sizeof(struct iwl_wep_cmd); | |
481 | struct iwl_host_cmd cmd = { | |
482 | .id = REPLY_WEPKEY, | |
483 | .data = wep_cmd, | |
484 | .meta.flags = CMD_ASYNC, | |
485 | }; | |
486 | ||
487 | memset(wep_cmd, 0, cmd_size + | |
488 | (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); | |
489 | ||
490 | for (i = 0; i < WEP_KEYS_MAX ; i++) { | |
491 | wep_cmd->key[i].key_index = i; | |
492 | if (priv->wep_keys[i].key_size) { | |
493 | wep_cmd->key[i].key_offset = i; | |
494 | not_empty = 1; | |
495 | } else { | |
496 | wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; | |
497 | } | |
498 | ||
499 | wep_cmd->key[i].key_size = priv->wep_keys[i].key_size; | |
500 | memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key, | |
501 | priv->wep_keys[i].key_size); | |
502 | } | |
503 | ||
504 | wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; | |
505 | wep_cmd->num_keys = WEP_KEYS_MAX; | |
506 | ||
507 | cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; | |
508 | ||
509 | cmd.len = cmd_size; | |
510 | ||
511 | if (not_empty || send_if_empty) | |
512 | return iwl_send_cmd(priv, &cmd); | |
513 | else | |
514 | return 0; | |
515 | } | |
27aaba0c | 516 | EXPORT_SYMBOL(iwl_send_static_wepkey_cmd); |
6974e363 EG |
517 | |
518 | int iwl_remove_default_wep_key(struct iwl_priv *priv, | |
80fb47a1 | 519 | struct ieee80211_key_conf *keyconf) |
6974e363 EG |
520 | { |
521 | int ret; | |
522 | unsigned long flags; | |
523 | ||
524 | spin_lock_irqsave(&priv->sta_lock, flags); | |
80fb47a1 EG |
525 | |
526 | if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table)) | |
527 | IWL_ERROR("index %d not used in uCode key table.\n", | |
528 | keyconf->keyidx); | |
529 | ||
6974e363 | 530 | priv->default_wep_key--; |
80fb47a1 | 531 | memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0])); |
6974e363 | 532 | ret = iwl_send_static_wepkey_cmd(priv, 1); |
4564ce8b EG |
533 | IWL_DEBUG_WEP("Remove default WEP key: idx=%d ret=%d\n", |
534 | keyconf->keyidx, ret); | |
6974e363 EG |
535 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
536 | ||
537 | return ret; | |
538 | } | |
27aaba0c | 539 | EXPORT_SYMBOL(iwl_remove_default_wep_key); |
6974e363 EG |
540 | |
541 | int iwl_set_default_wep_key(struct iwl_priv *priv, | |
542 | struct ieee80211_key_conf *keyconf) | |
543 | { | |
544 | int ret; | |
545 | unsigned long flags; | |
546 | ||
4564ce8b EG |
547 | if (keyconf->keylen != WEP_KEY_LEN_128 && |
548 | keyconf->keylen != WEP_KEY_LEN_64) { | |
549 | IWL_DEBUG_WEP("Bad WEP key length %d\n", keyconf->keylen); | |
550 | return -EINVAL; | |
551 | } | |
552 | ||
6974e363 | 553 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
ccc038ab | 554 | keyconf->hw_key_idx = HW_KEY_DEFAULT; |
6974e363 EG |
555 | priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP; |
556 | ||
557 | spin_lock_irqsave(&priv->sta_lock, flags); | |
558 | priv->default_wep_key++; | |
559 | ||
80fb47a1 EG |
560 | if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table)) |
561 | IWL_ERROR("index %d already used in uCode key table.\n", | |
562 | keyconf->keyidx); | |
563 | ||
6974e363 EG |
564 | priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; |
565 | memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key, | |
566 | keyconf->keylen); | |
567 | ||
568 | ret = iwl_send_static_wepkey_cmd(priv, 0); | |
4564ce8b EG |
569 | IWL_DEBUG_WEP("Set default WEP key: len=%d idx=%d ret=%d\n", |
570 | keyconf->keylen, keyconf->keyidx, ret); | |
6974e363 EG |
571 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
572 | ||
573 | return ret; | |
574 | } | |
27aaba0c | 575 | EXPORT_SYMBOL(iwl_set_default_wep_key); |
6974e363 | 576 | |
7480513f | 577 | static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, |
0211ddda EG |
578 | struct ieee80211_key_conf *keyconf, |
579 | u8 sta_id) | |
580 | { | |
581 | unsigned long flags; | |
582 | __le16 key_flags = 0; | |
583 | int ret; | |
584 | ||
585 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; | |
0211ddda EG |
586 | |
587 | key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); | |
588 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
589 | key_flags &= ~STA_KEY_FLG_INVALID; | |
590 | ||
591 | if (keyconf->keylen == WEP_KEY_LEN_128) | |
592 | key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; | |
593 | ||
5425e490 | 594 | if (sta_id == priv->hw_params.bcast_sta_id) |
0211ddda EG |
595 | key_flags |= STA_KEY_MULTICAST_MSK; |
596 | ||
597 | spin_lock_irqsave(&priv->sta_lock, flags); | |
598 | ||
599 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
600 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
601 | priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; | |
602 | ||
603 | memcpy(priv->stations[sta_id].keyinfo.key, | |
604 | keyconf->key, keyconf->keylen); | |
605 | ||
606 | memcpy(&priv->stations[sta_id].sta.key.key[3], | |
607 | keyconf->key, keyconf->keylen); | |
608 | ||
3ec47732 EG |
609 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
610 | == STA_KEY_FLG_NO_ENC) | |
611 | priv->stations[sta_id].sta.key.key_offset = | |
80fb47a1 | 612 | iwl_get_free_ucode_key_index(priv); |
3ec47732 EG |
613 | /* else, we are overriding an existing key => no need to allocated room |
614 | * in uCode. */ | |
0211ddda | 615 | |
3ec47732 | 616 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
0211ddda EG |
617 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
618 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
619 | ||
133636de | 620 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
0211ddda EG |
621 | |
622 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
623 | ||
624 | return ret; | |
625 | } | |
7480513f EG |
626 | |
627 | static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, | |
628 | struct ieee80211_key_conf *keyconf, | |
629 | u8 sta_id) | |
630 | { | |
631 | unsigned long flags; | |
632 | __le16 key_flags = 0; | |
633 | ||
634 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); | |
635 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
636 | key_flags &= ~STA_KEY_FLG_INVALID; | |
637 | ||
5425e490 | 638 | if (sta_id == priv->hw_params.bcast_sta_id) |
7480513f EG |
639 | key_flags |= STA_KEY_MULTICAST_MSK; |
640 | ||
641 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
7480513f EG |
642 | |
643 | spin_lock_irqsave(&priv->sta_lock, flags); | |
644 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
645 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
646 | ||
647 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
648 | keyconf->keylen); | |
649 | ||
650 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, | |
651 | keyconf->keylen); | |
652 | ||
3ec47732 EG |
653 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
654 | == STA_KEY_FLG_NO_ENC) | |
655 | priv->stations[sta_id].sta.key.key_offset = | |
656 | iwl_get_free_ucode_key_index(priv); | |
657 | /* else, we are overriding an existing key => no need to allocated room | |
658 | * in uCode. */ | |
659 | ||
7480513f EG |
660 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
661 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
662 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
663 | ||
664 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
665 | ||
666 | IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n"); | |
133636de | 667 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
7480513f EG |
668 | } |
669 | ||
670 | static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, | |
671 | struct ieee80211_key_conf *keyconf, | |
672 | u8 sta_id) | |
673 | { | |
674 | unsigned long flags; | |
675 | int ret = 0; | |
676 | ||
677 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
678 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
7480513f EG |
679 | |
680 | spin_lock_irqsave(&priv->sta_lock, flags); | |
681 | ||
682 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; | |
7480513f | 683 | priv->stations[sta_id].keyinfo.keylen = 16; |
3ec47732 EG |
684 | |
685 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) | |
686 | == STA_KEY_FLG_NO_ENC) | |
687 | priv->stations[sta_id].sta.key.key_offset = | |
77bab602 | 688 | iwl_get_free_ucode_key_index(priv); |
3ec47732 EG |
689 | /* else, we are overriding an existing key => no need to allocated room |
690 | * in uCode. */ | |
7480513f EG |
691 | |
692 | /* This copy is acutally not needed: we get the key with each TX */ | |
693 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); | |
694 | ||
695 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); | |
696 | ||
697 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
698 | ||
699 | return ret; | |
700 | } | |
701 | ||
3ec47732 EG |
702 | int iwl_remove_dynamic_key(struct iwl_priv *priv, |
703 | struct ieee80211_key_conf *keyconf, | |
704 | u8 sta_id) | |
7480513f EG |
705 | { |
706 | unsigned long flags; | |
3ec47732 EG |
707 | int ret = 0; |
708 | u16 key_flags; | |
709 | u8 keyidx; | |
7480513f | 710 | |
ccc038ab | 711 | priv->key_mapping_key--; |
7480513f EG |
712 | |
713 | spin_lock_irqsave(&priv->sta_lock, flags); | |
3ec47732 EG |
714 | key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); |
715 | keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; | |
716 | ||
4564ce8b EG |
717 | IWL_DEBUG_WEP("Remove dynamic key: idx=%d sta=%d\n", |
718 | keyconf->keyidx, sta_id); | |
719 | ||
3ec47732 EG |
720 | if (keyconf->keyidx != keyidx) { |
721 | /* We need to remove a key with index different that the one | |
722 | * in the uCode. This means that the key we need to remove has | |
723 | * been replaced by another one with different index. | |
724 | * Don't do anything and return ok | |
725 | */ | |
726 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
727 | return 0; | |
728 | } | |
729 | ||
7480513f EG |
730 | if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, |
731 | &priv->ucode_key_table)) | |
732 | IWL_ERROR("index %d not used in uCode key table.\n", | |
733 | priv->stations[sta_id].sta.key.key_offset); | |
734 | memset(&priv->stations[sta_id].keyinfo, 0, | |
6def9761 | 735 | sizeof(struct iwl_hw_key)); |
7480513f EG |
736 | memset(&priv->stations[sta_id].sta.key, 0, |
737 | sizeof(struct iwl4965_keyinfo)); | |
3ec47732 EG |
738 | priv->stations[sta_id].sta.key.key_flags = |
739 | STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; | |
740 | priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; | |
7480513f EG |
741 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
742 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
7480513f | 743 | |
ccc038ab | 744 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
3ec47732 EG |
745 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
746 | return ret; | |
7480513f | 747 | } |
27aaba0c | 748 | EXPORT_SYMBOL(iwl_remove_dynamic_key); |
7480513f EG |
749 | |
750 | int iwl_set_dynamic_key(struct iwl_priv *priv, | |
ccc038ab | 751 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
7480513f EG |
752 | { |
753 | int ret; | |
754 | ||
ccc038ab EG |
755 | priv->key_mapping_key++; |
756 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; | |
7480513f | 757 | |
ccc038ab | 758 | switch (keyconf->alg) { |
7480513f | 759 | case ALG_CCMP: |
ccc038ab | 760 | ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); |
7480513f EG |
761 | break; |
762 | case ALG_TKIP: | |
ccc038ab | 763 | ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id); |
7480513f EG |
764 | break; |
765 | case ALG_WEP: | |
ccc038ab | 766 | ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id); |
7480513f EG |
767 | break; |
768 | default: | |
ccc038ab | 769 | IWL_ERROR("Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
7480513f EG |
770 | ret = -EINVAL; |
771 | } | |
772 | ||
4564ce8b EG |
773 | IWL_DEBUG_WEP("Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", |
774 | keyconf->alg, keyconf->keylen, keyconf->keyidx, | |
775 | sta_id, ret); | |
776 | ||
7480513f EG |
777 | return ret; |
778 | } | |
27aaba0c | 779 | EXPORT_SYMBOL(iwl_set_dynamic_key); |
7480513f | 780 | |
66c73db7 TW |
781 | #ifdef CONFIG_IWLWIFI_DEBUG |
782 | static void iwl_dump_lq_cmd(struct iwl_priv *priv, | |
783 | struct iwl_link_quality_cmd *lq) | |
784 | { | |
785 | int i; | |
786 | IWL_DEBUG_RATE("lq station id 0x%x\n", lq->sta_id); | |
787 | IWL_DEBUG_RATE("lq dta 0x%X 0x%X\n", | |
788 | lq->general_params.single_stream_ant_msk, | |
789 | lq->general_params.dual_stream_ant_msk); | |
790 | ||
791 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) | |
792 | IWL_DEBUG_RATE("lq index %d 0x%X\n", | |
793 | i, lq->rs_table[i].rate_n_flags); | |
794 | } | |
795 | #else | |
796 | static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, | |
797 | struct iwl_link_quality_cmd *lq) | |
798 | { | |
799 | } | |
800 | #endif | |
801 | ||
802 | int iwl_send_lq_cmd(struct iwl_priv *priv, | |
803 | struct iwl_link_quality_cmd *lq, u8 flags) | |
804 | { | |
805 | struct iwl_host_cmd cmd = { | |
806 | .id = REPLY_TX_LINK_QUALITY_CMD, | |
807 | .len = sizeof(struct iwl_link_quality_cmd), | |
808 | .meta.flags = flags, | |
809 | .data = lq, | |
810 | }; | |
811 | ||
812 | if ((lq->sta_id == 0xFF) && | |
05c914fe | 813 | (priv->iw_mode == NL80211_IFTYPE_ADHOC)) |
66c73db7 TW |
814 | return -EINVAL; |
815 | ||
816 | if (lq->sta_id == 0xFF) | |
817 | lq->sta_id = IWL_AP_ID; | |
818 | ||
3ac7f146 | 819 | iwl_dump_lq_cmd(priv, lq); |
66c73db7 | 820 | |
36e1f16e | 821 | if (iwl_is_associated(priv) && priv->assoc_station_added) |
66c73db7 TW |
822 | return iwl_send_cmd(priv, &cmd); |
823 | ||
824 | return 0; | |
825 | } | |
826 | EXPORT_SYMBOL(iwl_send_lq_cmd); | |
827 | ||
4f40e4d9 TW |
828 | /** |
829 | * iwl_sta_init_lq - Initialize a station's hardware rate table | |
830 | * | |
831 | * The uCode's station table contains a table of fallback rates | |
832 | * for automatic fallback during transmission. | |
833 | * | |
834 | * NOTE: This sets up a default set of values. These will be replaced later | |
e227ceac | 835 | * if the driver's iwl-agn-rs rate scaling algorithm is used, instead of |
4f40e4d9 TW |
836 | * rc80211_simple. |
837 | * | |
838 | * NOTE: Run REPLY_ADD_STA command to set up station table entry, before | |
839 | * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, | |
840 | * which requires station table entry to exist). | |
841 | */ | |
842 | static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, int is_ap) | |
843 | { | |
844 | int i, r; | |
845 | struct iwl_link_quality_cmd link_cmd = { | |
846 | .reserved1 = 0, | |
847 | }; | |
848 | u16 rate_flags; | |
849 | ||
850 | /* Set up the rate scaling to start at selected rate, fall back | |
851 | * all the way down to 1M in IEEE order, and then spin on 1M */ | |
852 | if (is_ap) | |
853 | r = IWL_RATE_54M_INDEX; | |
854 | else if (priv->band == IEEE80211_BAND_5GHZ) | |
855 | r = IWL_RATE_6M_INDEX; | |
856 | else | |
857 | r = IWL_RATE_1M_INDEX; | |
858 | ||
859 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { | |
860 | rate_flags = 0; | |
861 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) | |
862 | rate_flags |= RATE_MCS_CCK_MSK; | |
863 | ||
864 | /* Use Tx antenna B only */ | |
865 | rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/ | |
866 | ||
867 | link_cmd.rs_table[i].rate_n_flags = | |
e7d326ac | 868 | iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); |
4f40e4d9 TW |
869 | r = iwl4965_get_prev_ieee_rate(r); |
870 | } | |
871 | ||
872 | link_cmd.general_params.single_stream_ant_msk = 2; | |
873 | link_cmd.general_params.dual_stream_ant_msk = 3; | |
874 | link_cmd.agg_params.agg_dis_start_th = 3; | |
875 | link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000); | |
876 | ||
877 | /* Update the rate scaling for control frame Tx to AP */ | |
878 | link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id; | |
879 | ||
880 | iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, | |
881 | sizeof(link_cmd), &link_cmd, NULL); | |
882 | } | |
24e5c401 | 883 | |
4f40e4d9 TW |
884 | /** |
885 | * iwl_rxon_add_station - add station into station table. | |
886 | * | |
887 | * there is only one AP station with id= IWL_AP_ID | |
888 | * NOTE: mutex must be held before calling this fnction | |
889 | */ | |
890 | int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap) | |
891 | { | |
892 | u8 sta_id; | |
893 | ||
894 | /* Add station to device's station table */ | |
4f40e4d9 TW |
895 | struct ieee80211_conf *conf = &priv->hw->conf; |
896 | struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf; | |
897 | ||
898 | if ((is_ap) && | |
899 | (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) && | |
05c914fe | 900 | (priv->iw_mode == NL80211_IFTYPE_STATION)) |
4f40e4d9 TW |
901 | sta_id = iwl_add_station_flags(priv, addr, is_ap, |
902 | 0, cur_ht_config); | |
903 | else | |
4f40e4d9 TW |
904 | sta_id = iwl_add_station_flags(priv, addr, is_ap, |
905 | 0, NULL); | |
906 | ||
907 | /* Set up default rate scaling table in device's station table */ | |
908 | iwl_sta_init_lq(priv, addr, is_ap); | |
909 | ||
910 | return sta_id; | |
911 | } | |
912 | EXPORT_SYMBOL(iwl_rxon_add_station); | |
913 | ||
4f40e4d9 TW |
914 | /** |
915 | * iwl_get_sta_id - Find station's index within station table | |
916 | * | |
917 | * If new IBSS station, create new entry in station table | |
918 | */ | |
919 | int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) | |
920 | { | |
921 | int sta_id; | |
922 | u16 fc = le16_to_cpu(hdr->frame_control); | |
4f40e4d9 TW |
923 | |
924 | /* If this frame is broadcast or management, use broadcast station id */ | |
925 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || | |
926 | is_multicast_ether_addr(hdr->addr1)) | |
927 | return priv->hw_params.bcast_sta_id; | |
928 | ||
929 | switch (priv->iw_mode) { | |
930 | ||
931 | /* If we are a client station in a BSS network, use the special | |
932 | * AP station entry (that's the only station we communicate with) */ | |
05c914fe | 933 | case NL80211_IFTYPE_STATION: |
4f40e4d9 TW |
934 | return IWL_AP_ID; |
935 | ||
936 | /* If we are an AP, then find the station, or use BCAST */ | |
05c914fe | 937 | case NL80211_IFTYPE_AP: |
4f40e4d9 TW |
938 | sta_id = iwl_find_station(priv, hdr->addr1); |
939 | if (sta_id != IWL_INVALID_STATION) | |
940 | return sta_id; | |
941 | return priv->hw_params.bcast_sta_id; | |
942 | ||
943 | /* If this frame is going out to an IBSS network, find the station, | |
944 | * or create a new station table entry */ | |
05c914fe | 945 | case NL80211_IFTYPE_ADHOC: |
4f40e4d9 TW |
946 | sta_id = iwl_find_station(priv, hdr->addr1); |
947 | if (sta_id != IWL_INVALID_STATION) | |
948 | return sta_id; | |
949 | ||
950 | /* Create new station table entry */ | |
951 | sta_id = iwl_add_station_flags(priv, hdr->addr1, | |
952 | 0, CMD_ASYNC, NULL); | |
953 | ||
954 | if (sta_id != IWL_INVALID_STATION) | |
955 | return sta_id; | |
956 | ||
e174961c | 957 | IWL_DEBUG_DROP("Station %pM not in station map. " |
4f40e4d9 | 958 | "Defaulting to broadcast...\n", |
e174961c | 959 | hdr->addr1); |
4f40e4d9 TW |
960 | iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
961 | return priv->hw_params.bcast_sta_id; | |
962 | ||
d10c4ec8 SG |
963 | /* If we are in monitor mode, use BCAST. This is required for |
964 | * packet injection. */ | |
05c914fe | 965 | case NL80211_IFTYPE_MONITOR: |
d10c4ec8 SG |
966 | return priv->hw_params.bcast_sta_id; |
967 | ||
4f40e4d9 | 968 | default: |
6f147926 | 969 | IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode); |
4f40e4d9 TW |
970 | return priv->hw_params.bcast_sta_id; |
971 | } | |
972 | } | |
973 | EXPORT_SYMBOL(iwl_get_sta_id); | |
974 | ||
5083e563 TW |
975 | /** |
976 | * iwl_sta_modify_enable_tid_tx - Enable Tx for this TID in station table | |
977 | */ | |
978 | void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id, int tid) | |
979 | { | |
980 | unsigned long flags; | |
981 | ||
982 | /* Remove "disable" flag, to enable Tx for this TID */ | |
983 | spin_lock_irqsave(&priv->sta_lock, flags); | |
984 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; | |
985 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); | |
986 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
987 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
988 | ||
989 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); | |
990 | } | |
991 | EXPORT_SYMBOL(iwl_sta_modify_enable_tid_tx); | |
992 |