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21e40f62a8d744a2bead4f190cb72c266028066e
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / core.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2010 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
25 *
26 * Larry Finger <Larry.Finger@lwfinger.net>
27 *
28 *****************************************************************************/
29
30 #include "wifi.h"
31 #include "core.h"
32 #include "cam.h"
33 #include "base.h"
34 #include "ps.h"
35
36 /*mutex for start & stop is must here. */
37 static int rtl_op_start(struct ieee80211_hw *hw)
38 {
39 int err;
40 struct rtl_priv *rtlpriv = rtl_priv(hw);
41 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
42
43 if (!is_hal_stop(rtlhal))
44 return 0;
45 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
46 return 0;
47 mutex_lock(&rtlpriv->locks.conf_mutex);
48 err = rtlpriv->intf_ops->adapter_start(hw);
49 if (!err)
50 rtl_watch_dog_timer_callback((unsigned long)hw);
51 mutex_unlock(&rtlpriv->locks.conf_mutex);
52 return err;
53 }
54
55 static void rtl_op_stop(struct ieee80211_hw *hw)
56 {
57 struct rtl_priv *rtlpriv = rtl_priv(hw);
58 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
59 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
60 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
61
62 if (is_hal_stop(rtlhal))
63 return;
64
65 if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
66 rtl_ips_nic_on(hw);
67 mdelay(1);
68 }
69
70 mutex_lock(&rtlpriv->locks.conf_mutex);
71
72 mac->link_state = MAC80211_NOLINK;
73 memset(mac->bssid, 0, 6);
74 mac->vendor = PEER_UNKNOWN;
75
76 /*reset sec info */
77 rtl_cam_reset_sec_info(hw);
78
79 rtl_deinit_deferred_work(hw);
80 rtlpriv->intf_ops->adapter_stop(hw);
81
82 mutex_unlock(&rtlpriv->locks.conf_mutex);
83 }
84
85 static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
86 {
87 struct rtl_priv *rtlpriv = rtl_priv(hw);
88 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
89 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
90 struct rtl_tcb_desc tcb_desc;
91 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
92
93 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
94 goto err_free;
95
96 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
97 goto err_free;
98
99 if (!rtlpriv->intf_ops->waitq_insert(hw, skb))
100 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
101
102 return;
103
104 err_free:
105 dev_kfree_skb_any(skb);
106 }
107
108 static int rtl_op_add_interface(struct ieee80211_hw *hw,
109 struct ieee80211_vif *vif)
110 {
111 struct rtl_priv *rtlpriv = rtl_priv(hw);
112 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
113 int err = 0;
114
115 if (mac->vif) {
116 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
117 ("vif has been set!! mac->vif = 0x%p\n", mac->vif));
118 return -EOPNOTSUPP;
119 }
120
121 rtl_ips_nic_on(hw);
122
123 mutex_lock(&rtlpriv->locks.conf_mutex);
124 switch (vif->type) {
125 case NL80211_IFTYPE_STATION:
126 if (mac->beacon_enabled == 1) {
127 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
128 ("NL80211_IFTYPE_STATION\n"));
129 mac->beacon_enabled = 0;
130 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
131 rtlpriv->cfg->maps
132 [RTL_IBSS_INT_MASKS]);
133 }
134 break;
135 case NL80211_IFTYPE_ADHOC:
136 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
137 ("NL80211_IFTYPE_ADHOC\n"));
138
139 mac->link_state = MAC80211_LINKED;
140 rtlpriv->cfg->ops->set_bcn_reg(hw);
141 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
142 mac->basic_rates = 0xfff;
143 else
144 mac->basic_rates = 0xff0;
145 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
146 (u8 *) (&mac->basic_rates));
147
148 break;
149 case NL80211_IFTYPE_AP:
150 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
151 ("NL80211_IFTYPE_AP\n"));
152
153 mac->link_state = MAC80211_LINKED;
154 rtlpriv->cfg->ops->set_bcn_reg(hw);
155 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
156 mac->basic_rates = 0xfff;
157 else
158 mac->basic_rates = 0xff0;
159 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
160 (u8 *) (&mac->basic_rates));
161 break;
162 default:
163 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
164 ("operation mode %d is not support!\n", vif->type));
165 err = -EOPNOTSUPP;
166 goto out;
167 }
168
169 mac->vif = vif;
170 mac->opmode = vif->type;
171 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
172 memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
173 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
174
175 out:
176 mutex_unlock(&rtlpriv->locks.conf_mutex);
177 return err;
178 }
179
180 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
181 struct ieee80211_vif *vif)
182 {
183 struct rtl_priv *rtlpriv = rtl_priv(hw);
184 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
185
186 mutex_lock(&rtlpriv->locks.conf_mutex);
187
188 /* Free beacon resources */
189 if ((mac->opmode == NL80211_IFTYPE_AP) ||
190 (mac->opmode == NL80211_IFTYPE_ADHOC) ||
191 (mac->opmode == NL80211_IFTYPE_MESH_POINT)) {
192 if (mac->beacon_enabled == 1) {
193 mac->beacon_enabled = 0;
194 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
195 rtlpriv->cfg->maps
196 [RTL_IBSS_INT_MASKS]);
197 }
198 }
199
200 /*
201 *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
202 *NO LINK for our hardware.
203 */
204 mac->vif = NULL;
205 mac->link_state = MAC80211_NOLINK;
206 memset(mac->bssid, 0, 6);
207 mac->vendor = PEER_UNKNOWN;
208 mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
209 rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
210 mutex_unlock(&rtlpriv->locks.conf_mutex);
211 }
212
213 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
214 {
215 struct rtl_priv *rtlpriv = rtl_priv(hw);
216 struct rtl_phy *rtlphy = &(rtlpriv->phy);
217 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
218 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
219 struct ieee80211_conf *conf = &hw->conf;
220
221 mutex_lock(&rtlpriv->locks.conf_mutex);
222 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { /*BIT(2)*/
223 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
224 ("IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n"));
225 }
226
227 /*For IPS */
228 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
229 if (hw->conf.flags & IEEE80211_CONF_IDLE)
230 rtl_ips_nic_off(hw);
231 else
232 rtl_ips_nic_on(hw);
233 } else {
234 /*
235 *although rfoff may not cause by ips, but we will
236 *check the reason in set_rf_power_state function
237 */
238 if (unlikely(ppsc->rfpwr_state == ERFOFF))
239 rtl_ips_nic_on(hw);
240 }
241
242 /*For LPS */
243 if (changed & IEEE80211_CONF_CHANGE_PS) {
244 cancel_delayed_work(&rtlpriv->works.ps_work);
245 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
246 if (conf->flags & IEEE80211_CONF_PS) {
247 rtlpriv->psc.sw_ps_enabled = true;
248 /* sleep here is must, or we may recv the beacon and
249 * cause mac80211 into wrong ps state, this will cause
250 * power save nullfunc send fail, and further cause
251 * pkt loss, So sleep must quickly but not immediatly
252 * because that will cause nullfunc send by mac80211
253 * fail, and cause pkt loss, we have tested that 5mA
254 * is worked very well */
255 if (!rtlpriv->psc.multi_buffered)
256 queue_delayed_work(rtlpriv->works.rtl_wq,
257 &rtlpriv->works.ps_work,
258 MSECS(5));
259 } else {
260 rtl_swlps_rf_awake(hw);
261 rtlpriv->psc.sw_ps_enabled = false;
262 }
263 }
264
265 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
266 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
267 ("IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
268 hw->conf.long_frame_max_tx_count));
269 mac->retry_long = hw->conf.long_frame_max_tx_count;
270 mac->retry_short = hw->conf.long_frame_max_tx_count;
271 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
272 (u8 *) (&hw->conf.
273 long_frame_max_tx_count));
274 }
275
276 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
277 struct ieee80211_channel *channel = hw->conf.channel;
278 u8 wide_chan = (u8) channel->hw_value;
279
280 /*
281 *because we should back channel to
282 *current_network.chan in in scanning,
283 *So if set_chan == current_network.chan
284 *we should set it.
285 *because mac80211 tell us wrong bw40
286 *info for cisco1253 bw20, so we modify
287 *it here based on UPPER & LOWER
288 */
289 switch (hw->conf.channel_type) {
290 case NL80211_CHAN_HT20:
291 case NL80211_CHAN_NO_HT:
292 /* SC */
293 mac->cur_40_prime_sc =
294 PRIME_CHNL_OFFSET_DONT_CARE;
295 rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
296 mac->bw_40 = false;
297 break;
298 case NL80211_CHAN_HT40MINUS:
299 /* SC */
300 mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
301 rtlphy->current_chan_bw =
302 HT_CHANNEL_WIDTH_20_40;
303 mac->bw_40 = true;
304
305 /*wide channel */
306 wide_chan -= 2;
307
308 break;
309 case NL80211_CHAN_HT40PLUS:
310 /* SC */
311 mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
312 rtlphy->current_chan_bw =
313 HT_CHANNEL_WIDTH_20_40;
314 mac->bw_40 = true;
315
316 /*wide channel */
317 wide_chan += 2;
318
319 break;
320 default:
321 mac->bw_40 = false;
322 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
323 ("switch case not processed\n"));
324 break;
325 }
326
327 if (wide_chan <= 0)
328 wide_chan = 1;
329
330 /* In scanning, before we go offchannel we may send a ps=1 null
331 * to AP, and then we may send a ps = 0 null to AP quickly, but
332 * first null may have caused AP to put lots of packet to hw tx
333 * buffer. These packets must be tx'd before we go off channel
334 * so we must delay more time to let AP flush these packets
335 * before going offchannel, or dis-association or delete BA will
336 * happen by AP
337 */
338 if (rtlpriv->mac80211.offchan_delay) {
339 rtlpriv->mac80211.offchan_delay = false;
340 mdelay(50);
341 }
342 rtlphy->current_channel = wide_chan;
343
344 rtlpriv->cfg->ops->switch_channel(hw);
345 rtlpriv->cfg->ops->set_channel_access(hw);
346 rtlpriv->cfg->ops->set_bw_mode(hw,
347 hw->conf.channel_type);
348 }
349
350 mutex_unlock(&rtlpriv->locks.conf_mutex);
351
352 return 0;
353 }
354
355 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
356 unsigned int changed_flags,
357 unsigned int *new_flags, u64 multicast)
358 {
359 struct rtl_priv *rtlpriv = rtl_priv(hw);
360 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
361
362 *new_flags &= RTL_SUPPORTED_FILTERS;
363 if (!changed_flags)
364 return;
365
366 /*TODO: we disable broadcase now, so enable here */
367 if (changed_flags & FIF_ALLMULTI) {
368 if (*new_flags & FIF_ALLMULTI) {
369 mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
370 rtlpriv->cfg->maps[MAC_RCR_AB];
371 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
372 ("Enable receive multicast frame.\n"));
373 } else {
374 mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
375 rtlpriv->cfg->maps[MAC_RCR_AB]);
376 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
377 ("Disable receive multicast frame.\n"));
378 }
379 }
380
381 if (changed_flags & FIF_FCSFAIL) {
382 if (*new_flags & FIF_FCSFAIL) {
383 mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
384 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
385 ("Enable receive FCS error frame.\n"));
386 } else {
387 mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
388 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
389 ("Disable receive FCS error frame.\n"));
390 }
391 }
392
393 /* if ssid not set to hw don't check bssid
394 * here just used for linked scanning, & linked
395 * and nolink check bssid is set in set network_type */
396 if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
397 (mac->link_state >= MAC80211_LINKED)) {
398 if (mac->opmode != NL80211_IFTYPE_AP) {
399 if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
400 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
401 } else {
402 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
403 }
404 }
405 }
406
407 if (changed_flags & FIF_CONTROL) {
408 if (*new_flags & FIF_CONTROL) {
409 mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
410
411 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
412 ("Enable receive control frame.\n"));
413 } else {
414 mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
415 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
416 ("Disable receive control frame.\n"));
417 }
418 }
419
420 if (changed_flags & FIF_OTHER_BSS) {
421 if (*new_flags & FIF_OTHER_BSS) {
422 mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
423 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
424 ("Enable receive other BSS's frame.\n"));
425 } else {
426 mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
427 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
428 ("Disable receive other BSS's frame.\n"));
429 }
430 }
431 }
432 static int rtl_op_sta_add(struct ieee80211_hw *hw,
433 struct ieee80211_vif *vif,
434 struct ieee80211_sta *sta)
435 {
436 struct rtl_priv *rtlpriv = rtl_priv(hw);
437 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
438 struct rtl_sta_info *sta_entry;
439
440 if (sta) {
441 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
442 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
443 sta_entry->wireless_mode = WIRELESS_MODE_G;
444 if (sta->supp_rates[0] <= 0xf)
445 sta_entry->wireless_mode = WIRELESS_MODE_B;
446 if (sta->ht_cap.ht_supported)
447 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
448 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
449 sta_entry->wireless_mode = WIRELESS_MODE_A;
450 if (sta->ht_cap.ht_supported)
451 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
452 }
453
454 /* I found some times mac80211 give wrong supp_rates for adhoc*/
455 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
456 sta_entry->wireless_mode = WIRELESS_MODE_G;
457
458 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
459 ("Add sta addr is %pM\n", sta->addr));
460 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
461 }
462 return 0;
463 }
464 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
465 struct ieee80211_vif *vif,
466 struct ieee80211_sta *sta)
467 {
468 struct rtl_priv *rtlpriv = rtl_priv(hw);
469 struct rtl_sta_info *sta_entry;
470 if (sta) {
471 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
472 ("Remove sta addr is %pM\n", sta->addr));
473 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
474 sta_entry->wireless_mode = 0;
475 sta_entry->ratr_index = 0;
476 }
477 return 0;
478 }
479 static int _rtl_get_hal_qnum(u16 queue)
480 {
481 int qnum;
482
483 switch (queue) {
484 case 0:
485 qnum = AC3_VO;
486 break;
487 case 1:
488 qnum = AC2_VI;
489 break;
490 case 2:
491 qnum = AC0_BE;
492 break;
493 case 3:
494 qnum = AC1_BK;
495 break;
496 default:
497 qnum = AC0_BE;
498 break;
499 }
500 return qnum;
501 }
502
503 /*
504 *for mac80211 VO=0, VI=1, BE=2, BK=3
505 *for rtl819x BE=0, BK=1, VI=2, VO=3
506 */
507 static int rtl_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
508 const struct ieee80211_tx_queue_params *param)
509 {
510 struct rtl_priv *rtlpriv = rtl_priv(hw);
511 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
512 int aci;
513
514 if (queue >= AC_MAX) {
515 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
516 ("queue number %d is incorrect!\n", queue));
517 return -EINVAL;
518 }
519
520 aci = _rtl_get_hal_qnum(queue);
521 mac->ac[aci].aifs = param->aifs;
522 mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
523 mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
524 mac->ac[aci].tx_op = cpu_to_le16(param->txop);
525 memcpy(&mac->edca_param[aci], param, sizeof(*param));
526 rtlpriv->cfg->ops->set_qos(hw, aci);
527 return 0;
528 }
529
530 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
531 struct ieee80211_vif *vif,
532 struct ieee80211_bss_conf *bss_conf, u32 changed)
533 {
534 struct rtl_priv *rtlpriv = rtl_priv(hw);
535 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
536 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
537 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
538 struct ieee80211_sta *sta = NULL;
539
540 mutex_lock(&rtlpriv->locks.conf_mutex);
541 if ((vif->type == NL80211_IFTYPE_ADHOC) ||
542 (vif->type == NL80211_IFTYPE_AP) ||
543 (vif->type == NL80211_IFTYPE_MESH_POINT)) {
544 if ((changed & BSS_CHANGED_BEACON) ||
545 (changed & BSS_CHANGED_BEACON_ENABLED &&
546 bss_conf->enable_beacon)) {
547 if (mac->beacon_enabled == 0) {
548 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
549 ("BSS_CHANGED_BEACON_ENABLED\n"));
550
551 /*start hw beacon interrupt. */
552 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
553 mac->beacon_enabled = 1;
554 rtlpriv->cfg->ops->update_interrupt_mask(hw,
555 rtlpriv->cfg->maps
556 [RTL_IBSS_INT_MASKS],
557 0);
558
559 if (rtlpriv->cfg->ops->linked_set_reg)
560 rtlpriv->cfg->ops->linked_set_reg(hw);
561 }
562 }
563 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
564 !bss_conf->enable_beacon)) {
565 if (mac->beacon_enabled == 1) {
566 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
567 ("ADHOC DISABLE BEACON\n"));
568
569 mac->beacon_enabled = 0;
570 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
571 rtlpriv->cfg->maps
572 [RTL_IBSS_INT_MASKS]);
573 }
574 }
575 if (changed & BSS_CHANGED_BEACON_INT) {
576 RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
577 ("BSS_CHANGED_BEACON_INT\n"));
578 mac->beacon_interval = bss_conf->beacon_int;
579 rtlpriv->cfg->ops->set_bcn_intv(hw);
580 }
581 }
582
583 /*TODO: reference to enum ieee80211_bss_change */
584 if (changed & BSS_CHANGED_ASSOC) {
585 if (bss_conf->assoc) {
586 /* we should reset all sec info & cam
587 * before set cam after linked, we should not
588 * reset in disassoc, that will cause tkip->wep
589 * fail because some flag will be wrong */
590 /* reset sec info */
591 rtl_cam_reset_sec_info(hw);
592 /* reset cam to fix wep fail issue
593 * when change from wpa to wep */
594 rtl_cam_reset_all_entry(hw);
595
596 mac->link_state = MAC80211_LINKED;
597 mac->cnt_after_linked = 0;
598 mac->assoc_id = bss_conf->aid;
599 memcpy(mac->bssid, bss_conf->bssid, 6);
600
601 if (rtlpriv->cfg->ops->linked_set_reg)
602 rtlpriv->cfg->ops->linked_set_reg(hw);
603 if (mac->opmode == NL80211_IFTYPE_STATION && sta)
604 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
605 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
606 ("BSS_CHANGED_ASSOC\n"));
607 } else {
608 if (mac->link_state == MAC80211_LINKED)
609 rtl_lps_leave(hw);
610
611 mac->link_state = MAC80211_NOLINK;
612 memset(mac->bssid, 0, 6);
613
614 /* reset sec info */
615 rtl_cam_reset_sec_info(hw);
616
617 rtl_cam_reset_all_entry(hw);
618 mac->vendor = PEER_UNKNOWN;
619
620 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
621 ("BSS_CHANGED_UN_ASSOC\n"));
622 }
623 }
624
625 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
626 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
627 ("BSS_CHANGED_ERP_CTS_PROT\n"));
628 mac->use_cts_protect = bss_conf->use_cts_prot;
629 }
630
631 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
632 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
633 ("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
634 bss_conf->use_short_preamble));
635
636 mac->short_preamble = bss_conf->use_short_preamble;
637 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
638 (u8 *) (&mac->short_preamble));
639 }
640
641 if (changed & BSS_CHANGED_ERP_SLOT) {
642 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
643 ("BSS_CHANGED_ERP_SLOT\n"));
644
645 if (bss_conf->use_short_slot)
646 mac->slot_time = RTL_SLOT_TIME_9;
647 else
648 mac->slot_time = RTL_SLOT_TIME_20;
649
650 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
651 (u8 *) (&mac->slot_time));
652 }
653
654 if (changed & BSS_CHANGED_HT) {
655 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
656 ("BSS_CHANGED_HT\n"));
657 rcu_read_lock();
658 sta = get_sta(hw, vif, bss_conf->bssid);
659 if (sta) {
660 if (sta->ht_cap.ampdu_density >
661 mac->current_ampdu_density)
662 mac->current_ampdu_density =
663 sta->ht_cap.ampdu_density;
664 if (sta->ht_cap.ampdu_factor <
665 mac->current_ampdu_factor)
666 mac->current_ampdu_factor =
667 sta->ht_cap.ampdu_factor;
668 }
669 rcu_read_unlock();
670
671 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
672 (u8 *) (&mac->max_mss_density));
673 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
674 &mac->current_ampdu_factor);
675 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
676 &mac->current_ampdu_density);
677 }
678
679 if (changed & BSS_CHANGED_BSSID) {
680 u32 basic_rates;
681
682 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
683 (u8 *) bss_conf->bssid);
684
685 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
686 ("%pM\n", bss_conf->bssid));
687
688 mac->vendor = PEER_UNKNOWN;
689 memcpy(mac->bssid, bss_conf->bssid, 6);
690 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
691
692 rcu_read_lock();
693 sta = get_sta(hw, vif, bss_conf->bssid);
694 if (!sta) {
695 rcu_read_unlock();
696 goto out;
697 }
698
699 if (rtlhal->current_bandtype == BAND_ON_5G) {
700 mac->mode = WIRELESS_MODE_A;
701 } else {
702 if (sta->supp_rates[0] <= 0xf)
703 mac->mode = WIRELESS_MODE_B;
704 else
705 mac->mode = WIRELESS_MODE_G;
706 }
707
708 if (sta->ht_cap.ht_supported) {
709 if (rtlhal->current_bandtype == BAND_ON_2_4G)
710 mac->mode = WIRELESS_MODE_N_24G;
711 else
712 mac->mode = WIRELESS_MODE_N_5G;
713 }
714
715 /* just station need it, because ibss & ap mode will
716 * set in sta_add, and will be NULL here */
717 if (mac->opmode == NL80211_IFTYPE_STATION) {
718 struct rtl_sta_info *sta_entry;
719 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
720 sta_entry->wireless_mode = mac->mode;
721 }
722
723 if (sta->ht_cap.ht_supported) {
724 mac->ht_enable = true;
725
726 /*
727 * for cisco 1252 bw20 it's wrong
728 * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
729 * mac->bw_40 = true;
730 * }
731 * */
732 }
733
734 if (changed & BSS_CHANGED_BASIC_RATES) {
735 /* for 5G must << RATE_6M_INDEX=4,
736 * because 5G have no cck rate*/
737 if (rtlhal->current_bandtype == BAND_ON_5G)
738 basic_rates = sta->supp_rates[1] << 4;
739 else
740 basic_rates = sta->supp_rates[0];
741
742 mac->basic_rates = basic_rates;
743 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
744 (u8 *) (&basic_rates));
745 }
746 rcu_read_unlock();
747 }
748
749 /*
750 * For FW LPS:
751 * To tell firmware we have connected
752 * to an AP. For 92SE/CE power save v2.
753 */
754 if (changed & BSS_CHANGED_ASSOC) {
755 if (bss_conf->assoc) {
756 if (ppsc->fwctrl_lps) {
757 u8 mstatus = RT_MEDIA_CONNECT;
758 rtlpriv->cfg->ops->set_hw_reg(hw,
759 HW_VAR_H2C_FW_JOINBSSRPT,
760 (u8 *) (&mstatus));
761 ppsc->report_linked = true;
762 }
763 } else {
764 if (ppsc->fwctrl_lps) {
765 u8 mstatus = RT_MEDIA_DISCONNECT;
766 rtlpriv->cfg->ops->set_hw_reg(hw,
767 HW_VAR_H2C_FW_JOINBSSRPT,
768 (u8 *)(&mstatus));
769 ppsc->report_linked = false;
770 }
771 }
772 }
773
774 out:
775 mutex_unlock(&rtlpriv->locks.conf_mutex);
776 }
777
778 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
779 {
780 struct rtl_priv *rtlpriv = rtl_priv(hw);
781 u64 tsf;
782
783 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
784 return tsf;
785 }
786
787 static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
788 u64 tsf)
789 {
790 struct rtl_priv *rtlpriv = rtl_priv(hw);
791 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
792 u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
793
794 mac->tsf = tsf;
795 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&bibss));
796 }
797
798 static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
799 struct ieee80211_vif *vif)
800 {
801 struct rtl_priv *rtlpriv = rtl_priv(hw);
802 u8 tmp = 0;
803
804 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *) (&tmp));
805 }
806
807 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
808 struct ieee80211_vif *vif,
809 enum sta_notify_cmd cmd,
810 struct ieee80211_sta *sta)
811 {
812 switch (cmd) {
813 case STA_NOTIFY_SLEEP:
814 break;
815 case STA_NOTIFY_AWAKE:
816 break;
817 default:
818 break;
819 }
820 }
821
822 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
823 struct ieee80211_vif *vif,
824 enum ieee80211_ampdu_mlme_action action,
825 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
826 u8 buf_size)
827 {
828 struct rtl_priv *rtlpriv = rtl_priv(hw);
829
830 switch (action) {
831 case IEEE80211_AMPDU_TX_START:
832 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
833 ("IEEE80211_AMPDU_TX_START: TID:%d\n", tid));
834 return rtl_tx_agg_start(hw, sta, tid, ssn);
835 break;
836 case IEEE80211_AMPDU_TX_STOP:
837 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
838 ("IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid));
839 return rtl_tx_agg_stop(hw, sta, tid);
840 break;
841 case IEEE80211_AMPDU_TX_OPERATIONAL:
842 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
843 ("IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid));
844 rtl_tx_agg_oper(hw, sta, tid);
845 break;
846 case IEEE80211_AMPDU_RX_START:
847 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
848 ("IEEE80211_AMPDU_RX_START:TID:%d\n", tid));
849 break;
850 case IEEE80211_AMPDU_RX_STOP:
851 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
852 ("IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid));
853 break;
854 default:
855 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
856 ("IEEE80211_AMPDU_ERR!!!!:\n"));
857 return -EOPNOTSUPP;
858 }
859 return 0;
860 }
861
862 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
863 {
864 struct rtl_priv *rtlpriv = rtl_priv(hw);
865 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
866
867 mac->act_scanning = true;
868
869 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
870
871 if (mac->link_state == MAC80211_LINKED) {
872 rtl_lps_leave(hw);
873 mac->link_state = MAC80211_LINKED_SCANNING;
874 } else {
875 rtl_ips_nic_on(hw);
876 }
877
878 /* Dual mac */
879 rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
880
881 rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
882 rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
883 }
884
885 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
886 {
887 struct rtl_priv *rtlpriv = rtl_priv(hw);
888 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
889
890 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n"));
891 mac->act_scanning = false;
892 /* Dual mac */
893 rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
894
895 if (mac->link_state == MAC80211_LINKED_SCANNING) {
896 mac->link_state = MAC80211_LINKED;
897 if (mac->opmode == NL80211_IFTYPE_STATION) {
898 /* fix fwlps issue */
899 rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
900 }
901 }
902
903 rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
904 }
905
906 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
907 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
908 struct ieee80211_key_conf *key)
909 {
910 struct rtl_priv *rtlpriv = rtl_priv(hw);
911 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
912 u8 key_type = NO_ENCRYPTION;
913 u8 key_idx;
914 bool group_key = false;
915 bool wep_only = false;
916 int err = 0;
917 u8 mac_addr[ETH_ALEN];
918 u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
919 u8 zero_addr[ETH_ALEN] = { 0 };
920
921 if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
922 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
923 ("not open hw encryption\n"));
924 return -ENOSPC; /*User disabled HW-crypto */
925 }
926 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
927 ("%s hardware based encryption for keyidx: %d, mac: %pM\n",
928 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
929 sta ? sta->addr : bcast_addr));
930 rtlpriv->sec.being_setkey = true;
931 rtl_ips_nic_on(hw);
932 mutex_lock(&rtlpriv->locks.conf_mutex);
933 /* <1> get encryption alg */
934
935 switch (key->cipher) {
936 case WLAN_CIPHER_SUITE_WEP40:
937 key_type = WEP40_ENCRYPTION;
938 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:WEP40\n"));
939 break;
940 case WLAN_CIPHER_SUITE_WEP104:
941 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
942 ("alg:WEP104\n"));
943 key_type = WEP104_ENCRYPTION;
944 break;
945 case WLAN_CIPHER_SUITE_TKIP:
946 key_type = TKIP_ENCRYPTION;
947 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:TKIP\n"));
948 break;
949 case WLAN_CIPHER_SUITE_CCMP:
950 key_type = AESCCMP_ENCRYPTION;
951 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("alg:CCMP\n"));
952 break;
953 default:
954 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
955 ("alg_err:%x!!!!:\n", key->cipher));
956 goto out_unlock;
957 }
958 if (key_type == WEP40_ENCRYPTION ||
959 key_type == WEP104_ENCRYPTION ||
960 mac->opmode == NL80211_IFTYPE_ADHOC)
961 rtlpriv->sec.use_defaultkey = true;
962
963 /* <2> get key_idx */
964 key_idx = (u8) (key->keyidx);
965 if (key_idx > 3)
966 goto out_unlock;
967 /* <3> if pairwise key enable_hw_sec */
968 group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
969
970 /* wep always be group key, but there are two conditions:
971 * 1) wep only: is just for wep enc, in this condition
972 * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
973 * will be true & enable_hw_sec will be set when wep
974 * ke setting.
975 * 2) wep(group) + AES(pairwise): some AP like cisco
976 * may use it, in this condition enable_hw_sec will not
977 * be set when wep key setting */
978 /* we must reset sec_info after lingked before set key,
979 * or some flag will be wrong*/
980 if (mac->opmode == NL80211_IFTYPE_AP) {
981 if (!group_key || key_type == WEP40_ENCRYPTION ||
982 key_type == WEP104_ENCRYPTION) {
983 if (group_key)
984 wep_only = true;
985 rtlpriv->cfg->ops->enable_hw_sec(hw);
986 }
987 } else {
988 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
989 rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
990 if (rtlpriv->sec.pairwise_enc_algorithm ==
991 NO_ENCRYPTION &&
992 (key_type == WEP40_ENCRYPTION ||
993 key_type == WEP104_ENCRYPTION))
994 wep_only = true;
995 rtlpriv->sec.pairwise_enc_algorithm = key_type;
996 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
997 ("set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1"
998 " TKIP:2 AES:4 WEP104:5)\n", key_type));
999 rtlpriv->cfg->ops->enable_hw_sec(hw);
1000 }
1001 }
1002 /* <4> set key based on cmd */
1003 switch (cmd) {
1004 case SET_KEY:
1005 if (wep_only) {
1006 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1007 ("set WEP(group/pairwise) key\n"));
1008 /* Pairwise key with an assigned MAC address. */
1009 rtlpriv->sec.pairwise_enc_algorithm = key_type;
1010 rtlpriv->sec.group_enc_algorithm = key_type;
1011 /*set local buf about wep key. */
1012 memcpy(rtlpriv->sec.key_buf[key_idx],
1013 key->key, key->keylen);
1014 rtlpriv->sec.key_len[key_idx] = key->keylen;
1015 memcpy(mac_addr, zero_addr, ETH_ALEN);
1016 } else if (group_key) { /* group key */
1017 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1018 ("set group key\n"));
1019 /* group key */
1020 rtlpriv->sec.group_enc_algorithm = key_type;
1021 /*set local buf about group key. */
1022 memcpy(rtlpriv->sec.key_buf[key_idx],
1023 key->key, key->keylen);
1024 rtlpriv->sec.key_len[key_idx] = key->keylen;
1025 memcpy(mac_addr, bcast_addr, ETH_ALEN);
1026 } else { /* pairwise key */
1027 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1028 ("set pairwise key\n"));
1029 if (!sta) {
1030 RT_ASSERT(false, ("pairwise key withnot"
1031 "mac_addr\n"));
1032
1033 err = -EOPNOTSUPP;
1034 goto out_unlock;
1035 }
1036 /* Pairwise key with an assigned MAC address. */
1037 rtlpriv->sec.pairwise_enc_algorithm = key_type;
1038 /*set local buf about pairwise key. */
1039 memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1040 key->key, key->keylen);
1041 rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1042 rtlpriv->sec.pairwise_key =
1043 rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1044 memcpy(mac_addr, sta->addr, ETH_ALEN);
1045 }
1046 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1047 group_key, key_type, wep_only,
1048 false);
1049 /* <5> tell mac80211 do something: */
1050 /*must use sw generate IV, or can not work !!!!. */
1051 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1052 key->hw_key_idx = key_idx;
1053 if (key_type == TKIP_ENCRYPTION)
1054 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1055 break;
1056 case DISABLE_KEY:
1057 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1058 ("disable key delete one entry\n"));
1059 /*set local buf about wep key. */
1060 if (mac->opmode == NL80211_IFTYPE_AP) {
1061 if (sta)
1062 rtl_cam_del_entry(hw, sta->addr);
1063 }
1064 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1065 rtlpriv->sec.key_len[key_idx] = 0;
1066 memcpy(mac_addr, zero_addr, ETH_ALEN);
1067 /*
1068 *mac80211 will delete entrys one by one,
1069 *so don't use rtl_cam_reset_all_entry
1070 *or clear all entry here.
1071 */
1072 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1073
1074 rtl_cam_reset_sec_info(hw);
1075
1076 break;
1077 default:
1078 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1079 ("cmd_err:%x!!!!:\n", cmd));
1080 }
1081 out_unlock:
1082 mutex_unlock(&rtlpriv->locks.conf_mutex);
1083 rtlpriv->sec.being_setkey = false;
1084 return err;
1085 }
1086
1087 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1088 {
1089 struct rtl_priv *rtlpriv = rtl_priv(hw);
1090
1091 bool radio_state;
1092 bool blocked;
1093 u8 valid = 0;
1094
1095 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1096 return;
1097
1098 mutex_lock(&rtlpriv->locks.conf_mutex);
1099
1100 /*if Radio On return true here */
1101 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1102
1103 if (valid) {
1104 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1105 rtlpriv->rfkill.rfkill_state = radio_state;
1106
1107 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1108 (KERN_INFO "wireless radio switch turned %s\n",
1109 radio_state ? "on" : "off"));
1110
1111 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1112 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1113 }
1114 }
1115
1116 mutex_unlock(&rtlpriv->locks.conf_mutex);
1117 }
1118
1119 /* this function is called by mac80211 to flush tx buffer
1120 * before switch channle or power save, or tx buffer packet
1121 * maybe send after offchannel or rf sleep, this may cause
1122 * dis-association by AP */
1123 static void rtl_op_flush(struct ieee80211_hw *hw, bool drop)
1124 {
1125 struct rtl_priv *rtlpriv = rtl_priv(hw);
1126
1127 if (rtlpriv->intf_ops->flush)
1128 rtlpriv->intf_ops->flush(hw, drop);
1129 }
1130
1131 const struct ieee80211_ops rtl_ops = {
1132 .start = rtl_op_start,
1133 .stop = rtl_op_stop,
1134 .tx = rtl_op_tx,
1135 .add_interface = rtl_op_add_interface,
1136 .remove_interface = rtl_op_remove_interface,
1137 .config = rtl_op_config,
1138 .configure_filter = rtl_op_configure_filter,
1139 .sta_add = rtl_op_sta_add,
1140 .sta_remove = rtl_op_sta_remove,
1141 .set_key = rtl_op_set_key,
1142 .conf_tx = rtl_op_conf_tx,
1143 .bss_info_changed = rtl_op_bss_info_changed,
1144 .get_tsf = rtl_op_get_tsf,
1145 .set_tsf = rtl_op_set_tsf,
1146 .reset_tsf = rtl_op_reset_tsf,
1147 .sta_notify = rtl_op_sta_notify,
1148 .ampdu_action = rtl_op_ampdu_action,
1149 .sw_scan_start = rtl_op_sw_scan_start,
1150 .sw_scan_complete = rtl_op_sw_scan_complete,
1151 .rfkill_poll = rtl_op_rfkill_poll,
1152 .flush = rtl_op_flush,
1153 };
Linux kernel - Deliverables
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