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proc: use seq_puts()/seq_putc() where possible
[linux-2.6/next.git] / drivers / net / wireless / ath / carl9170 / mac.c
blob385cf508479b447b903f799acdfd0be111241a5b
1 /*
2 * Atheros CARL9170 driver
3 *
4 * MAC programming
5 *
6 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; see the file COPYING. If not, see
20 * http://www.gnu.org/licenses/.
21 *
22 * This file incorporates work covered by the following copyright and
23 * permission notice:
24 * Copyright (c) 2007-2008 Atheros Communications, Inc.
25 *
26 * Permission to use, copy, modify, and/or distribute this software for any
27 * purpose with or without fee is hereby granted, provided that the above
28 * copyright notice and this permission notice appear in all copies.
29 *
30 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
31 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
32 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
33 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
34 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
35 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
36 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
37 */
38
39 #include <asm/unaligned.h>
40
41 #include "carl9170.h"
42 #include "cmd.h"
43
44 int carl9170_set_dyn_sifs_ack(struct ar9170 *ar)
45 {
46 u32 val;
47
48 if (conf_is_ht40(&ar->hw->conf))
49 val = 0x010a;
50 else {
51 if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ)
52 val = 0x105;
53 else
54 val = 0x104;
55 }
56
57 return carl9170_write_reg(ar, AR9170_MAC_REG_DYNAMIC_SIFS_ACK, val);
58 }
59
60 int carl9170_set_rts_cts_rate(struct ar9170 *ar)
61 {
62 u32 rts_rate, cts_rate;
63
64 if (conf_is_ht(&ar->hw->conf)) {
65 /* 12 mbit OFDM */
66 rts_rate = 0x1da;
67 cts_rate = 0x10a;
68 } else {
69 if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
70 /* 11 mbit CCK */
71 rts_rate = 033;
72 cts_rate = 003;
73 } else {
74 /* 6 mbit OFDM */
75 rts_rate = 0x1bb;
76 cts_rate = 0x10b;
77 }
78 }
79
80 return carl9170_write_reg(ar, AR9170_MAC_REG_RTS_CTS_RATE,
81 rts_rate | (cts_rate) << 16);
82 }
83
84 int carl9170_set_slot_time(struct ar9170 *ar)
85 {
86 struct ieee80211_vif *vif;
87 u32 slottime = 20;
88
89 rcu_read_lock();
90 vif = carl9170_get_main_vif(ar);
91 if (!vif) {
92 rcu_read_unlock();
93 return 0;
94 }
95
96 if ((ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ) ||
97 vif->bss_conf.use_short_slot)
98 slottime = 9;
99
100 rcu_read_unlock();
101
102 return carl9170_write_reg(ar, AR9170_MAC_REG_SLOT_TIME,
103 slottime << 10);
104 }
105
106 int carl9170_set_mac_rates(struct ar9170 *ar)
107 {
108 struct ieee80211_vif *vif;
109 u32 basic, mandatory;
110
111 rcu_read_lock();
112 vif = carl9170_get_main_vif(ar);
113
114 if (!vif) {
115 rcu_read_unlock();
116 return 0;
117 }
118
119 basic = (vif->bss_conf.basic_rates & 0xf);
120 basic |= (vif->bss_conf.basic_rates & 0xff0) << 4;
121 rcu_read_unlock();
122
123 if (ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ)
124 mandatory = 0xff00; /* OFDM 6/9/12/18/24/36/48/54 */
125 else
126 mandatory = 0xff0f; /* OFDM (6/9../54) + CCK (1/2/5.5/11) */
127
128 carl9170_regwrite_begin(ar);
129 carl9170_regwrite(AR9170_MAC_REG_BASIC_RATE, basic);
130 carl9170_regwrite(AR9170_MAC_REG_MANDATORY_RATE, mandatory);
131 carl9170_regwrite_finish();
132
133 return carl9170_regwrite_result();
134 }
135
136 int carl9170_set_qos(struct ar9170 *ar)
137 {
138 carl9170_regwrite_begin(ar);
139
140 carl9170_regwrite(AR9170_MAC_REG_AC0_CW, ar->edcf[0].cw_min |
141 (ar->edcf[0].cw_max << 16));
142 carl9170_regwrite(AR9170_MAC_REG_AC1_CW, ar->edcf[1].cw_min |
143 (ar->edcf[1].cw_max << 16));
144 carl9170_regwrite(AR9170_MAC_REG_AC2_CW, ar->edcf[2].cw_min |
145 (ar->edcf[2].cw_max << 16));
146 carl9170_regwrite(AR9170_MAC_REG_AC3_CW, ar->edcf[3].cw_min |
147 (ar->edcf[3].cw_max << 16));
148 carl9170_regwrite(AR9170_MAC_REG_AC4_CW, ar->edcf[4].cw_min |
149 (ar->edcf[4].cw_max << 16));
150
151 carl9170_regwrite(AR9170_MAC_REG_AC2_AC1_AC0_AIFS,
152 ((ar->edcf[0].aifs * 9 + 10)) |
153 ((ar->edcf[1].aifs * 9 + 10) << 12) |
154 ((ar->edcf[2].aifs * 9 + 10) << 24));
155 carl9170_regwrite(AR9170_MAC_REG_AC4_AC3_AC2_AIFS,
156 ((ar->edcf[2].aifs * 9 + 10) >> 8) |
157 ((ar->edcf[3].aifs * 9 + 10) << 4) |
158 ((ar->edcf[4].aifs * 9 + 10) << 16));
159
160 carl9170_regwrite(AR9170_MAC_REG_AC1_AC0_TXOP,
161 ar->edcf[0].txop | ar->edcf[1].txop << 16);
162 carl9170_regwrite(AR9170_MAC_REG_AC3_AC2_TXOP,
163 ar->edcf[2].txop | ar->edcf[3].txop << 16 |
164 ar->edcf[4].txop << 24);
165
166 carl9170_regwrite_finish();
167
168 return carl9170_regwrite_result();
169 }
170
171 int carl9170_init_mac(struct ar9170 *ar)
172 {
173 carl9170_regwrite_begin(ar);
174
175 /* switch MAC to OTUS interface */
176 carl9170_regwrite(0x1c3600, 0x3);
177
178 carl9170_regwrite(AR9170_MAC_REG_ACK_EXTENSION, 0x40);
179
180 carl9170_regwrite(AR9170_MAC_REG_RETRY_MAX, 0x0);
181
182 carl9170_regwrite(AR9170_MAC_REG_FRAMETYPE_FILTER,
183 AR9170_MAC_FTF_MONITOR);
184
185 /* enable MMIC */
186 carl9170_regwrite(AR9170_MAC_REG_SNIFFER,
187 AR9170_MAC_SNIFFER_DEFAULTS);
188
189 carl9170_regwrite(AR9170_MAC_REG_RX_THRESHOLD, 0xc1f80);
190
191 carl9170_regwrite(AR9170_MAC_REG_RX_PE_DELAY, 0x70);
192 carl9170_regwrite(AR9170_MAC_REG_EIFS_AND_SIFS, 0xa144000);
193 carl9170_regwrite(AR9170_MAC_REG_SLOT_TIME, 9 << 10);
194
195 /* CF-END & CF-ACK rate => 24M OFDM */
196 carl9170_regwrite(AR9170_MAC_REG_TID_CFACK_CFEND_RATE, 0x59900000);
197
198 /* NAV protects ACK only (in TXOP) */
199 carl9170_regwrite(AR9170_MAC_REG_TXOP_DURATION, 0x201);
200
201 /* Set Beacon PHY CTRL's TPC to 0x7, TA1=1 */
202 /* OTUS set AM to 0x1 */
203 carl9170_regwrite(AR9170_MAC_REG_BCN_HT1, 0x8000170);
204
205 carl9170_regwrite(AR9170_MAC_REG_BACKOFF_PROTECT, 0x105);
206
207 /* Aggregation MAX number and timeout */
208 carl9170_regwrite(AR9170_MAC_REG_AMPDU_FACTOR, 0x8000a);
209 carl9170_regwrite(AR9170_MAC_REG_AMPDU_DENSITY, 0x140a07);
210
211 carl9170_regwrite(AR9170_MAC_REG_FRAMETYPE_FILTER,
212 AR9170_MAC_FTF_DEFAULTS);
213
214 carl9170_regwrite(AR9170_MAC_REG_RX_CONTROL,
215 AR9170_MAC_RX_CTRL_DEAGG |
216 AR9170_MAC_RX_CTRL_SHORT_FILTER);
217
218 /* rate sets */
219 carl9170_regwrite(AR9170_MAC_REG_BASIC_RATE, 0x150f);
220 carl9170_regwrite(AR9170_MAC_REG_MANDATORY_RATE, 0x150f);
221 carl9170_regwrite(AR9170_MAC_REG_RTS_CTS_RATE, 0x0030033);
222
223 /* MIMO response control */
224 carl9170_regwrite(AR9170_MAC_REG_ACK_TPC, 0x4003c1e);
225
226 carl9170_regwrite(AR9170_MAC_REG_AMPDU_RX_THRESH, 0xffff);
227
228 /* set PHY register read timeout (??) */
229 carl9170_regwrite(AR9170_MAC_REG_MISC_680, 0xf00008);
230
231 /* Disable Rx TimeOut, workaround for BB. */
232 carl9170_regwrite(AR9170_MAC_REG_RX_TIMEOUT, 0x0);
233
234 /* Set WLAN DMA interrupt mode: generate int per packet */
235 carl9170_regwrite(AR9170_MAC_REG_TXRX_MPI, 0x110011);
236
237 carl9170_regwrite(AR9170_MAC_REG_FCS_SELECT,
238 AR9170_MAC_FCS_FIFO_PROT);
239
240 /* Disables the CF_END frame, undocumented register */
241 carl9170_regwrite(AR9170_MAC_REG_TXOP_NOT_ENOUGH_IND,
242 0x141e0f48);
243
244 /* reset group hash table */
245 carl9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_L, 0xffffffff);
246 carl9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_H, 0xffffffff);
247
248 /* disable PRETBTT interrupt */
249 carl9170_regwrite(AR9170_MAC_REG_PRETBTT, 0x0);
250 carl9170_regwrite(AR9170_MAC_REG_BCN_PERIOD, 0x0);
251
252 carl9170_regwrite_finish();
253
254 return carl9170_regwrite_result();
255 }
256
257 static int carl9170_set_mac_reg(struct ar9170 *ar,
258 const u32 reg, const u8 *mac)
259 {
260 static const u8 zero[ETH_ALEN] = { 0 };
261
262 if (!mac)
263 mac = zero;
264
265 carl9170_regwrite_begin(ar);
266
267 carl9170_regwrite(reg, get_unaligned_le32(mac));
268 carl9170_regwrite(reg + 4, get_unaligned_le16(mac + 4));
269
270 carl9170_regwrite_finish();
271
272 return carl9170_regwrite_result();
273 }
274
275 int carl9170_mod_virtual_mac(struct ar9170 *ar, const unsigned int id,
276 const u8 *mac)
277 {
278 if (WARN_ON(id >= ar->fw.vif_num))
279 return -EINVAL;
280
281 return carl9170_set_mac_reg(ar,
282 AR9170_MAC_REG_ACK_TABLE + (id - 1) * 8, mac);
283 }
284
285 int carl9170_update_multicast(struct ar9170 *ar, const u64 mc_hash)
286 {
287 int err;
288
289 carl9170_regwrite_begin(ar);
290 carl9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_H, mc_hash >> 32);
291 carl9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_L, mc_hash);
292 carl9170_regwrite_finish();
293 err = carl9170_regwrite_result();
294 if (err)
295 return err;
296
297 ar->cur_mc_hash = mc_hash;
298 return 0;
299 }
300
301 int carl9170_set_operating_mode(struct ar9170 *ar)
302 {
303 struct ieee80211_vif *vif;
304 struct ath_common *common = &ar->common;
305 u8 *mac_addr, *bssid;
306 u32 cam_mode = AR9170_MAC_CAM_DEFAULTS;
307 u32 enc_mode = AR9170_MAC_ENCRYPTION_DEFAULTS;
308 u32 rx_ctrl = AR9170_MAC_RX_CTRL_DEAGG |
309 AR9170_MAC_RX_CTRL_SHORT_FILTER;
310 u32 sniffer = AR9170_MAC_SNIFFER_DEFAULTS;
311 int err = 0;
312
313 rcu_read_lock();
314 vif = carl9170_get_main_vif(ar);
315
316 if (vif) {
317 mac_addr = common->macaddr;
318 bssid = common->curbssid;
319
320 switch (vif->type) {
321 case NL80211_IFTYPE_MESH_POINT:
322 case NL80211_IFTYPE_ADHOC:
323 cam_mode |= AR9170_MAC_CAM_IBSS;
324 break;
325 case NL80211_IFTYPE_AP:
326 cam_mode |= AR9170_MAC_CAM_AP;
327
328 /* iwlagn 802.11n STA Workaround */
329 rx_ctrl |= AR9170_MAC_RX_CTRL_PASS_TO_HOST;
330 break;
331 case NL80211_IFTYPE_WDS:
332 cam_mode |= AR9170_MAC_CAM_AP_WDS;
333 rx_ctrl |= AR9170_MAC_RX_CTRL_PASS_TO_HOST;
334 break;
335 case NL80211_IFTYPE_STATION:
336 cam_mode |= AR9170_MAC_CAM_STA;
337 rx_ctrl |= AR9170_MAC_RX_CTRL_PASS_TO_HOST;
338 break;
339 default:
340 WARN(1, "Unsupported operation mode %x\n", vif->type);
341 err = -EOPNOTSUPP;
342 break;
343 }
344 } else {
345 mac_addr = NULL;
346 bssid = NULL;
347 }
348 rcu_read_unlock();
349
350 if (err)
351 return err;
352
353 if (ar->rx_software_decryption)
354 enc_mode |= AR9170_MAC_ENCRYPTION_RX_SOFTWARE;
355
356 if (ar->sniffer_enabled) {
357 rx_ctrl |= AR9170_MAC_RX_CTRL_ACK_IN_SNIFFER;
358 sniffer |= AR9170_MAC_SNIFFER_ENABLE_PROMISC;
359 enc_mode |= AR9170_MAC_ENCRYPTION_RX_SOFTWARE;
360 }
361
362 err = carl9170_set_mac_reg(ar, AR9170_MAC_REG_MAC_ADDR_L, mac_addr);
363 if (err)
364 return err;
365
366 err = carl9170_set_mac_reg(ar, AR9170_MAC_REG_BSSID_L, bssid);
367 if (err)
368 return err;
369
370 carl9170_regwrite_begin(ar);
371 carl9170_regwrite(AR9170_MAC_REG_SNIFFER, sniffer);
372 carl9170_regwrite(AR9170_MAC_REG_CAM_MODE, cam_mode);
373 carl9170_regwrite(AR9170_MAC_REG_ENCRYPTION, enc_mode);
374 carl9170_regwrite(AR9170_MAC_REG_RX_CONTROL, rx_ctrl);
375 carl9170_regwrite_finish();
376
377 return carl9170_regwrite_result();
378 }
379
380 int carl9170_set_hwretry_limit(struct ar9170 *ar, const unsigned int max_retry)
381 {
382 u32 tmp = min_t(u32, 0x33333, max_retry * 0x11111);
383
384 return carl9170_write_reg(ar, AR9170_MAC_REG_RETRY_MAX, tmp);
385 }
386
387 int carl9170_set_beacon_timers(struct ar9170 *ar)
388 {
389 struct ieee80211_vif *vif;
390 u32 v = 0;
391 u32 pretbtt = 0;
392
393 rcu_read_lock();
394 vif = carl9170_get_main_vif(ar);
395
396 if (vif) {
397 struct carl9170_vif_info *mvif;
398 mvif = (void *) vif->drv_priv;
399
400 if (mvif->enable_beacon && !WARN_ON(!ar->beacon_enabled)) {
401 ar->global_beacon_int = vif->bss_conf.beacon_int /
402 ar->beacon_enabled;
403
404 SET_VAL(AR9170_MAC_BCN_DTIM, v,
405 vif->bss_conf.dtim_period);
406
407 switch (vif->type) {
408 case NL80211_IFTYPE_MESH_POINT:
409 case NL80211_IFTYPE_ADHOC:
410 v |= AR9170_MAC_BCN_IBSS_MODE;
411 break;
412 case NL80211_IFTYPE_AP:
413 v |= AR9170_MAC_BCN_AP_MODE;
414 break;
415 default:
416 WARN_ON_ONCE(1);
417 break;
418 }
419 } else if (vif->type == NL80211_IFTYPE_STATION) {
420 ar->global_beacon_int = vif->bss_conf.beacon_int;
421
422 SET_VAL(AR9170_MAC_BCN_DTIM, v,
423 ar->hw->conf.ps_dtim_period);
424
425 v |= AR9170_MAC_BCN_STA_PS |
426 AR9170_MAC_BCN_PWR_MGT;
427 }
428
429 if (ar->global_beacon_int) {
430 if (ar->global_beacon_int < 15) {
431 rcu_read_unlock();
432 return -ERANGE;
433 }
434
435 ar->global_pretbtt = ar->global_beacon_int -
436 CARL9170_PRETBTT_KUS;
437 } else {
438 ar->global_pretbtt = 0;
439 }
440 } else {
441 ar->global_beacon_int = 0;
442 ar->global_pretbtt = 0;
443 }
444
445 rcu_read_unlock();
446
447 SET_VAL(AR9170_MAC_BCN_PERIOD, v, ar->global_beacon_int);
448 SET_VAL(AR9170_MAC_PRETBTT, pretbtt, ar->global_pretbtt);
449 SET_VAL(AR9170_MAC_PRETBTT2, pretbtt, ar->global_pretbtt);
450
451 carl9170_regwrite_begin(ar);
452 carl9170_regwrite(AR9170_MAC_REG_PRETBTT, pretbtt);
453 carl9170_regwrite(AR9170_MAC_REG_BCN_PERIOD, v);
454 carl9170_regwrite_finish();
455 return carl9170_regwrite_result();
456 }
457
458 int carl9170_update_beacon(struct ar9170 *ar, const bool submit)
459 {
460 struct sk_buff *skb = NULL;
461 struct carl9170_vif_info *cvif;
462 struct ieee80211_tx_info *txinfo;
463 __le32 *data, *old = NULL;
464 u32 word, off, addr, len;
465 int i = 0, err = 0;
466
467 rcu_read_lock();
468 cvif = rcu_dereference(ar->beacon_iter);
469 retry:
470 if (ar->vifs == 0 || !cvif)
471 goto out_unlock;
472
473 list_for_each_entry_continue_rcu(cvif, &ar->vif_list, list) {
474 if (cvif->active && cvif->enable_beacon)
475 goto found;
476 }
477
478 if (!ar->beacon_enabled || i++)
479 goto out_unlock;
480
481 goto retry;
482
483 found:
484 rcu_assign_pointer(ar->beacon_iter, cvif);
485
486 skb = ieee80211_beacon_get_tim(ar->hw, carl9170_get_vif(cvif),
487 NULL, NULL);
488
489 if (!skb) {
490 err = -ENOMEM;
491 goto err_free;
492 }
493
494 txinfo = IEEE80211_SKB_CB(skb);
495 if (txinfo->control.rates[0].flags & IEEE80211_TX_RC_MCS) {
496 err = -EINVAL;
497 goto err_free;
498 }
499
500 spin_lock_bh(&ar->beacon_lock);
501 data = (__le32 *)skb->data;
502 if (cvif->beacon)
503 old = (__le32 *)cvif->beacon->data;
504
505 off = cvif->id * AR9170_MAC_BCN_LENGTH_MAX;
506 addr = ar->fw.beacon_addr + off;
507 len = roundup(skb->len + FCS_LEN, 4);
508
509 if ((off + len) > ar->fw.beacon_max_len) {
510 if (net_ratelimit()) {
511 wiphy_err(ar->hw->wiphy, "beacon does not "
512 "fit into device memory!\n");
513 }
514 err = -EINVAL;
515 goto err_unlock;
516 }
517
518 if (len > AR9170_MAC_BCN_LENGTH_MAX) {
519 if (net_ratelimit()) {
520 wiphy_err(ar->hw->wiphy, "no support for beacons "
521 "bigger than %d (yours:%d).\n",
522 AR9170_MAC_BCN_LENGTH_MAX, len);
523 }
524
525 err = -EMSGSIZE;
526 goto err_unlock;
527 }
528
529 i = txinfo->control.rates[0].idx;
530 if (txinfo->band != IEEE80211_BAND_2GHZ)
531 i += 4;
532
533 word = __carl9170_ratetable[i].hw_value & 0xf;
534 if (i < 4)
535 word |= ((skb->len + FCS_LEN) << (3 + 16)) + 0x0400;
536 else
537 word |= ((skb->len + FCS_LEN) << 16) + 0x0010;
538
539 carl9170_async_regwrite_begin(ar);
540 carl9170_async_regwrite(AR9170_MAC_REG_BCN_PLCP, word);
541
542 for (i = 0; i < DIV_ROUND_UP(skb->len, 4); i++) {
543 /*
544 * XXX: This accesses beyond skb data for up
545 * to the last 3 bytes!!
546 */
547
548 if (old && (data[i] == old[i]))
549 continue;
550
551 word = le32_to_cpu(data[i]);
552 carl9170_async_regwrite(addr + 4 * i, word);
553 }
554 carl9170_async_regwrite_finish();
555
556 dev_kfree_skb_any(cvif->beacon);
557 cvif->beacon = NULL;
558
559 err = carl9170_async_regwrite_result();
560 if (!err)
561 cvif->beacon = skb;
562 spin_unlock_bh(&ar->beacon_lock);
563 if (err)
564 goto err_free;
565
566 if (submit) {
567 err = carl9170_bcn_ctrl(ar, cvif->id,
568 CARL9170_BCN_CTRL_CAB_TRIGGER,
569 addr, skb->len + FCS_LEN);
570
571 if (err)
572 goto err_free;
573 }
574 out_unlock:
575 rcu_read_unlock();
576 return 0;
577
578 err_unlock:
579 spin_unlock_bh(&ar->beacon_lock);
580
581 err_free:
582 rcu_read_unlock();
583 dev_kfree_skb_any(skb);
584 return err;
585 }
586
587 int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac,
588 const u8 ktype, const u8 keyidx, const u8 *keydata,
589 const int keylen)
590 {
591 struct carl9170_set_key_cmd key = { };
592 static const u8 bcast[ETH_ALEN] = {
593 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
594
595 mac = mac ? : bcast;
596
597 key.user = cpu_to_le16(id);
598 key.keyId = cpu_to_le16(keyidx);
599 key.type = cpu_to_le16(ktype);
600 memcpy(&key.macAddr, mac, ETH_ALEN);
601 if (keydata)
602 memcpy(&key.key, keydata, keylen);
603
604 return carl9170_exec_cmd(ar, CARL9170_CMD_EKEY,
605 sizeof(key), (u8 *)&key, 0, NULL);
606 }
607
608 int carl9170_disable_key(struct ar9170 *ar, const u8 id)
609 {
610 struct carl9170_disable_key_cmd key = { };
611
612 key.user = cpu_to_le16(id);
613
614 return carl9170_exec_cmd(ar, CARL9170_CMD_DKEY,
615 sizeof(key), (u8 *)&key, 0, NULL);
616 }
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