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1/******************************************************************************
2 *
3 * Copyright(c) 2009-2012 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 "pci.h"
35#include "ps.h"
36
37#include <linux/export.h>
38
39void rtl_addr_delay(u32 addr)
40{
41 if (addr == 0xfe)
42 mdelay(50);
43 else if (addr == 0xfd)
44 mdelay(5);
45 else if (addr == 0xfc)
46 mdelay(1);
47 else if (addr == 0xfb)
48 udelay(50);
49 else if (addr == 0xfa)
50 udelay(5);
51 else if (addr == 0xf9)
52 udelay(1);
53}
54EXPORT_SYMBOL(rtl_addr_delay);
55
56void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
57 u32 mask, u32 data)
58{
59 if (addr == 0xfe) {
60 mdelay(50);
61 } else if (addr == 0xfd) {
62 mdelay(5);
63 } else if (addr == 0xfc) {
64 mdelay(1);
65 } else if (addr == 0xfb) {
66 udelay(50);
67 } else if (addr == 0xfa) {
68 udelay(5);
69 } else if (addr == 0xf9) {
70 udelay(1);
71 } else {
72 rtl_set_rfreg(hw, rfpath, addr, mask, data);
73 udelay(1);
74 }
75}
76EXPORT_SYMBOL(rtl_rfreg_delay);
77
78void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
79{
80 if (addr == 0xfe) {
81 mdelay(50);
82 } else if (addr == 0xfd) {
83 mdelay(5);
84 } else if (addr == 0xfc) {
85 mdelay(1);
86 } else if (addr == 0xfb) {
87 udelay(50);
88 } else if (addr == 0xfa) {
89 udelay(5);
90 } else if (addr == 0xf9) {
91 udelay(1);
92 } else {
93 rtl_set_bbreg(hw, addr, MASKDWORD, data);
94 udelay(1);
95 }
96}
97EXPORT_SYMBOL(rtl_bb_delay);
98
99void rtl_fw_cb(const struct firmware *firmware, void *context)
100{
101 struct ieee80211_hw *hw = context;
102 struct rtl_priv *rtlpriv = rtl_priv(hw);
103 int err;
104
105 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
106 "Firmware callback routine entered!\n");
107 complete(&rtlpriv->firmware_loading_complete);
108 if (!firmware) {
109 if (rtlpriv->cfg->alt_fw_name) {
110 err = request_firmware(&firmware,
111 rtlpriv->cfg->alt_fw_name,
112 rtlpriv->io.dev);
113 pr_info("Loading alternative firmware %s\n",
114 rtlpriv->cfg->alt_fw_name);
115 if (!err)
116 goto found_alt;
117 }
118 pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
119 rtlpriv->max_fw_size = 0;
120 return;
121 }
122found_alt:
123 if (firmware->size > rtlpriv->max_fw_size) {
124 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
125 "Firmware is too big!\n");
126 release_firmware(firmware);
127 return;
128 }
129 memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
130 rtlpriv->rtlhal.fwsize = firmware->size;
131 release_firmware(firmware);
132
133 err = ieee80211_register_hw(hw);
134 if (err) {
135 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
136 "Can't register mac80211 hw\n");
137 return;
138 } else {
139 rtlpriv->mac80211.mac80211_registered = 1;
140 }
141 set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
142
143 /*init rfkill */
144 rtl_init_rfkill(hw);
145}
146EXPORT_SYMBOL(rtl_fw_cb);
147
148/*mutex for start & stop is must here. */
149static int rtl_op_start(struct ieee80211_hw *hw)
150{
151 int err;
152 struct rtl_priv *rtlpriv = rtl_priv(hw);
153 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
154
155 if (!is_hal_stop(rtlhal))
156 return 0;
157 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
158 return 0;
159 mutex_lock(&rtlpriv->locks.conf_mutex);
160 err = rtlpriv->intf_ops->adapter_start(hw);
161 if (!err)
162 rtl_watch_dog_timer_callback((unsigned long)hw);
163 mutex_unlock(&rtlpriv->locks.conf_mutex);
164 return err;
165}
166
167static void rtl_op_stop(struct ieee80211_hw *hw)
168{
169 struct rtl_priv *rtlpriv = rtl_priv(hw);
170 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
171 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
172 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
173
174 if (is_hal_stop(rtlhal))
175 return;
176
177 /* here is must, because adhoc do stop and start,
178 * but stop with RFOFF may cause something wrong,
179 * like adhoc TP
180 */
181 if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
182 rtl_ips_nic_on(hw);
183 }
184
185 mutex_lock(&rtlpriv->locks.conf_mutex);
186
187 mac->link_state = MAC80211_NOLINK;
188 memset(mac->bssid, 0, ETH_ALEN);
189 mac->vendor = PEER_UNKNOWN;
190
191 /*reset sec info */
192 rtl_cam_reset_sec_info(hw);
193
194 rtl_deinit_deferred_work(hw);
195 rtlpriv->intf_ops->adapter_stop(hw);
196
197 mutex_unlock(&rtlpriv->locks.conf_mutex);
198}
199
200static void rtl_op_tx(struct ieee80211_hw *hw,
201 struct ieee80211_tx_control *control,
202 struct sk_buff *skb)
203{
204 struct rtl_priv *rtlpriv = rtl_priv(hw);
205 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
206 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
207 struct rtl_tcb_desc tcb_desc;
208 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
209
210 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
211 goto err_free;
212
213 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
214 goto err_free;
215
216 if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
217 rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
218
219 return;
220
221err_free:
222 dev_kfree_skb_any(skb);
223}
224
225static int rtl_op_add_interface(struct ieee80211_hw *hw,
226 struct ieee80211_vif *vif)
227{
228 struct rtl_priv *rtlpriv = rtl_priv(hw);
229 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
230 int err = 0;
231
232 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
233
234 if (mac->vif) {
235 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
236 "vif has been set!! mac->vif = 0x%p\n", mac->vif);
237 return -EOPNOTSUPP;
238 }
239
240 rtl_ips_nic_on(hw);
241
242 mutex_lock(&rtlpriv->locks.conf_mutex);
243
244 switch (ieee80211_vif_type_p2p(vif)) {
245 case NL80211_IFTYPE_P2P_CLIENT:
246 mac->p2p = P2P_ROLE_CLIENT;
247 /*fall through*/
248 case NL80211_IFTYPE_STATION:
249 if (mac->beacon_enabled == 1) {
250 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
251 "NL80211_IFTYPE_STATION\n");
252 mac->beacon_enabled = 0;
253 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
254 rtlpriv->cfg->maps
255 [RTL_IBSS_INT_MASKS]);
256 }
257 mac->link_state = MAC80211_LINKED;
258 break;
259 case NL80211_IFTYPE_ADHOC:
260 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
261 "NL80211_IFTYPE_ADHOC\n");
262
263 mac->link_state = MAC80211_LINKED;
264 rtlpriv->cfg->ops->set_bcn_reg(hw);
265 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
266 mac->basic_rates = 0xfff;
267 else
268 mac->basic_rates = 0xff0;
269 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
270 (u8 *) (&mac->basic_rates));
271
272 break;
273 case NL80211_IFTYPE_P2P_GO:
274 mac->p2p = P2P_ROLE_GO;
275 /*fall through*/
276 case NL80211_IFTYPE_AP:
277 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
278 "NL80211_IFTYPE_AP\n");
279
280 mac->link_state = MAC80211_LINKED;
281 rtlpriv->cfg->ops->set_bcn_reg(hw);
282 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
283 mac->basic_rates = 0xfff;
284 else
285 mac->basic_rates = 0xff0;
286 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
287 (u8 *) (&mac->basic_rates));
288 break;
289 case NL80211_IFTYPE_MESH_POINT:
290 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
291 "NL80211_IFTYPE_MESH_POINT\n");
292
293 mac->link_state = MAC80211_LINKED;
294 rtlpriv->cfg->ops->set_bcn_reg(hw);
295 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
296 mac->basic_rates = 0xfff;
297 else
298 mac->basic_rates = 0xff0;
299 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
300 (u8 *)(&mac->basic_rates));
301 break;
302 default:
303 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
304 "operation mode %d is not supported!\n", vif->type);
305 err = -EOPNOTSUPP;
306 goto out;
307 }
308
309 if (mac->p2p) {
310 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
311 "p2p role %x\n", vif->type);
312 mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
313 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
314 (u8 *)(&mac->basic_rates));
315 }
316 mac->vif = vif;
317 mac->opmode = vif->type;
318 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
319 memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
320 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
321
322out:
323 mutex_unlock(&rtlpriv->locks.conf_mutex);
324 return err;
325}
326
327static void rtl_op_remove_interface(struct ieee80211_hw *hw,
328 struct ieee80211_vif *vif)
329{
330 struct rtl_priv *rtlpriv = rtl_priv(hw);
331 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
332
333 mutex_lock(&rtlpriv->locks.conf_mutex);
334
335 /* Free beacon resources */
336 if ((vif->type == NL80211_IFTYPE_AP) ||
337 (vif->type == NL80211_IFTYPE_ADHOC) ||
338 (vif->type == NL80211_IFTYPE_MESH_POINT)) {
339 if (mac->beacon_enabled == 1) {
340 mac->beacon_enabled = 0;
341 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
342 rtlpriv->cfg->maps
343 [RTL_IBSS_INT_MASKS]);
344 }
345 }
346
347 /*
348 *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
349 *NO LINK for our hardware.
350 */
351 mac->p2p = 0;
352 mac->vif = NULL;
353 mac->link_state = MAC80211_NOLINK;
354 memset(mac->bssid, 0, ETH_ALEN);
355 mac->vendor = PEER_UNKNOWN;
356 mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
357 rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
358 mutex_unlock(&rtlpriv->locks.conf_mutex);
359}
360
361static int rtl_op_change_interface(struct ieee80211_hw *hw,
362 struct ieee80211_vif *vif,
363 enum nl80211_iftype new_type, bool p2p)
364{
365 struct rtl_priv *rtlpriv = rtl_priv(hw);
366 int ret;
367 rtl_op_remove_interface(hw, vif);
368
369 vif->type = new_type;
370 vif->p2p = p2p;
371 ret = rtl_op_add_interface(hw, vif);
372 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
373 "p2p %x\n", p2p);
374 return ret;
375}
376
377static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
378{
379 struct rtl_priv *rtlpriv = rtl_priv(hw);
380 struct rtl_phy *rtlphy = &(rtlpriv->phy);
381 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
382 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
383 struct ieee80211_conf *conf = &hw->conf;
384
385 if (mac->skip_scan)
386 return 1;
387
388 mutex_lock(&rtlpriv->locks.conf_mutex);
389 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { /*BIT(2)*/
390 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
391 "IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
392 }
393
394 /*For IPS */
395 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
396 if (hw->conf.flags & IEEE80211_CONF_IDLE)
397 rtl_ips_nic_off(hw);
398 else
399 rtl_ips_nic_on(hw);
400 } else {
401 /*
402 *although rfoff may not cause by ips, but we will
403 *check the reason in set_rf_power_state function
404 */
405 if (unlikely(ppsc->rfpwr_state == ERFOFF))
406 rtl_ips_nic_on(hw);
407 }
408
409 /*For LPS */
410 if (changed & IEEE80211_CONF_CHANGE_PS) {
411 cancel_delayed_work(&rtlpriv->works.ps_work);
412 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
413 if (conf->flags & IEEE80211_CONF_PS) {
414 rtlpriv->psc.sw_ps_enabled = true;
415 /* sleep here is must, or we may recv the beacon and
416 * cause mac80211 into wrong ps state, this will cause
417 * power save nullfunc send fail, and further cause
418 * pkt loss, So sleep must quickly but not immediatly
419 * because that will cause nullfunc send by mac80211
420 * fail, and cause pkt loss, we have tested that 5mA
421 * is worked very well */
422 if (!rtlpriv->psc.multi_buffered)
423 queue_delayed_work(rtlpriv->works.rtl_wq,
424 &rtlpriv->works.ps_work,
425 MSECS(5));
426 } else {
427 rtl_swlps_rf_awake(hw);
428 rtlpriv->psc.sw_ps_enabled = false;
429 }
430 }
431
432 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
433 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
434 "IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
435 hw->conf.long_frame_max_tx_count);
436 mac->retry_long = hw->conf.long_frame_max_tx_count;
437 mac->retry_short = hw->conf.long_frame_max_tx_count;
438 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
439 (u8 *) (&hw->conf.
440 long_frame_max_tx_count));
441 }
442
443 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
444 struct ieee80211_channel *channel = hw->conf.chandef.chan;
445 u8 wide_chan = (u8) channel->hw_value;
446
447 if (mac->act_scanning)
448 mac->n_channels++;
449
450 if (rtlpriv->dm.supp_phymode_switch &&
451 mac->link_state < MAC80211_LINKED &&
452 !mac->act_scanning) {
453 if (rtlpriv->cfg->ops->chk_switch_dmdp)
454 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
455 }
456
457 /*
458 *because we should back channel to
459 *current_network.chan in in scanning,
460 *So if set_chan == current_network.chan
461 *we should set it.
462 *because mac80211 tell us wrong bw40
463 *info for cisco1253 bw20, so we modify
464 *it here based on UPPER & LOWER
465 */
466 switch (cfg80211_get_chandef_type(&hw->conf.chandef)) {
467 case NL80211_CHAN_HT20:
468 case NL80211_CHAN_NO_HT:
469 /* SC */
470 mac->cur_40_prime_sc =
471 PRIME_CHNL_OFFSET_DONT_CARE;
472 rtlphy->current_chan_bw = HT_CHANNEL_WIDTH_20;
473 mac->bw_40 = false;
474 break;
475 case NL80211_CHAN_HT40MINUS:
476 /* SC */
477 mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_UPPER;
478 rtlphy->current_chan_bw =
479 HT_CHANNEL_WIDTH_20_40;
480 mac->bw_40 = true;
481
482 /*wide channel */
483 wide_chan -= 2;
484
485 break;
486 case NL80211_CHAN_HT40PLUS:
487 /* SC */
488 mac->cur_40_prime_sc = PRIME_CHNL_OFFSET_LOWER;
489 rtlphy->current_chan_bw =
490 HT_CHANNEL_WIDTH_20_40;
491 mac->bw_40 = true;
492
493 /*wide channel */
494 wide_chan += 2;
495
496 break;
497 default:
498 mac->bw_40 = false;
499 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
500 "switch case not processed\n");
501 break;
502 }
503
504 if (wide_chan <= 0)
505 wide_chan = 1;
506
507 /* In scanning, before we go offchannel we may send a ps = 1
508 * null to AP, and then we may send a ps = 0 null to AP quickly,
509 * but first null may have caused AP to put lots of packet to
510 * hw tx buffer. These packets must be tx'd before we go off
511 * channel so we must delay more time to let AP flush these
512 * packets before going offchannel, or dis-association or
513 * delete BA will be caused by AP
514 */
515 if (rtlpriv->mac80211.offchan_delay) {
516 rtlpriv->mac80211.offchan_delay = false;
517 mdelay(50);
518 }
519 rtlphy->current_channel = wide_chan;
520
521 rtlpriv->cfg->ops->switch_channel(hw);
522 rtlpriv->cfg->ops->set_channel_access(hw);
523 rtlpriv->cfg->ops->set_bw_mode(hw,
524 cfg80211_get_chandef_type(&hw->conf.chandef));
525 }
526
527 mutex_unlock(&rtlpriv->locks.conf_mutex);
528
529 return 0;
530}
531
532static void rtl_op_configure_filter(struct ieee80211_hw *hw,
533 unsigned int changed_flags,
534 unsigned int *new_flags, u64 multicast)
535{
536 struct rtl_priv *rtlpriv = rtl_priv(hw);
537 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
538 u32 rx_conf;
539
540 *new_flags &= RTL_SUPPORTED_FILTERS;
541 if (!changed_flags)
542 return;
543
544 /* if ssid not set to hw don't check bssid
545 * here just used for linked scanning, & linked
546 * and nolink check bssid is set in set network_type */
547 if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
548 (mac->link_state >= MAC80211_LINKED)) {
549 if (mac->opmode != NL80211_IFTYPE_AP &&
550 mac->opmode != NL80211_IFTYPE_MESH_POINT) {
551 if (*new_flags & FIF_BCN_PRBRESP_PROMISC) {
552 rtlpriv->cfg->ops->set_chk_bssid(hw, false);
553 } else {
554 rtlpriv->cfg->ops->set_chk_bssid(hw, true);
555 }
556 }
557 }
558
559 /* must be called after set_chk_bssid since that function modifies the
560 * RCR register too. */
561 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf));
562
563 /*TODO: we disable broadcase now, so enable here */
564 if (changed_flags & FIF_ALLMULTI) {
565 if (*new_flags & FIF_ALLMULTI) {
566 rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
567 rtlpriv->cfg->maps[MAC_RCR_AB];
568 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
569 "Enable receive multicast frame\n");
570 } else {
571 rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
572 rtlpriv->cfg->maps[MAC_RCR_AB]);
573 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
574 "Disable receive multicast frame\n");
575 }
576 }
577
578 if (changed_flags & FIF_FCSFAIL) {
579 if (*new_flags & FIF_FCSFAIL) {
580 rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
581 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
582 "Enable receive FCS error frame\n");
583 } else {
584 rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
585 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
586 "Disable receive FCS error frame\n");
587 }
588 }
589
590
591 if (changed_flags & FIF_CONTROL) {
592 if (*new_flags & FIF_CONTROL) {
593 rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
594
595 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
596 "Enable receive control frame\n");
597 } else {
598 rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
599 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
600 "Disable receive control frame\n");
601 }
602 }
603
604 if (changed_flags & FIF_OTHER_BSS) {
605 if (*new_flags & FIF_OTHER_BSS) {
606 rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
607 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
608 "Enable receive other BSS's frame\n");
609 } else {
610 rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
611 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
612 "Disable receive other BSS's frame\n");
613 }
614 }
615
616 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *)(&rx_conf));
617}
618static int rtl_op_sta_add(struct ieee80211_hw *hw,
619 struct ieee80211_vif *vif,
620 struct ieee80211_sta *sta)
621{
622 struct rtl_priv *rtlpriv = rtl_priv(hw);
623 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
624 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
625 struct rtl_sta_info *sta_entry;
626
627 if (sta) {
628 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
629 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
630 list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
631 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
632 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
633 sta_entry->wireless_mode = WIRELESS_MODE_G;
634 if (sta->supp_rates[0] <= 0xf)
635 sta_entry->wireless_mode = WIRELESS_MODE_B;
636 if (sta->ht_cap.ht_supported == true)
637 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
638
639 if (vif->type == NL80211_IFTYPE_ADHOC)
640 sta_entry->wireless_mode = WIRELESS_MODE_G;
641 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
642 sta_entry->wireless_mode = WIRELESS_MODE_A;
643 if (sta->ht_cap.ht_supported == true)
644 sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
645
646 if (vif->type == NL80211_IFTYPE_ADHOC)
647 sta_entry->wireless_mode = WIRELESS_MODE_A;
648 }
649 /*disable cck rate for p2p*/
650 if (mac->p2p)
651 sta->supp_rates[0] &= 0xfffffff0;
652
653 memcpy(sta_entry->mac_addr, sta->addr, ETH_ALEN);
654 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
655 "Add sta addr is %pM\n", sta->addr);
656 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
657 }
658 return 0;
659}
660
661static int rtl_op_sta_remove(struct ieee80211_hw *hw,
662 struct ieee80211_vif *vif,
663 struct ieee80211_sta *sta)
664{
665 struct rtl_priv *rtlpriv = rtl_priv(hw);
666 struct rtl_sta_info *sta_entry;
667 if (sta) {
668 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
669 "Remove sta addr is %pM\n", sta->addr);
670 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
671 sta_entry->wireless_mode = 0;
672 sta_entry->ratr_index = 0;
673
674 spin_lock_bh(&rtlpriv->locks.entry_list_lock);
675 list_del(&sta_entry->list);
676 spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
677 }
678 return 0;
679}
680
681static int _rtl_get_hal_qnum(u16 queue)
682{
683 int qnum;
684
685 switch (queue) {
686 case 0:
687 qnum = AC3_VO;
688 break;
689 case 1:
690 qnum = AC2_VI;
691 break;
692 case 2:
693 qnum = AC0_BE;
694 break;
695 case 3:
696 qnum = AC1_BK;
697 break;
698 default:
699 qnum = AC0_BE;
700 break;
701 }
702 return qnum;
703}
704
705/*
706 *for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
707 *for rtl819x BE = 0, BK = 1, VI = 2, VO = 3
708 */
709static int rtl_op_conf_tx(struct ieee80211_hw *hw,
710 struct ieee80211_vif *vif, u16 queue,
711 const struct ieee80211_tx_queue_params *param)
712{
713 struct rtl_priv *rtlpriv = rtl_priv(hw);
714 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
715 int aci;
716
717 if (queue >= AC_MAX) {
718 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
719 "queue number %d is incorrect!\n", queue);
720 return -EINVAL;
721 }
722
723 aci = _rtl_get_hal_qnum(queue);
724 mac->ac[aci].aifs = param->aifs;
725 mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
726 mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
727 mac->ac[aci].tx_op = cpu_to_le16(param->txop);
728 memcpy(&mac->edca_param[aci], param, sizeof(*param));
729 rtlpriv->cfg->ops->set_qos(hw, aci);
730 return 0;
731}
732
733static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
734 struct ieee80211_vif *vif,
735 struct ieee80211_bss_conf *bss_conf, u32 changed)
736{
737 struct rtl_priv *rtlpriv = rtl_priv(hw);
738 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
739 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
740 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
741 struct ieee80211_sta *sta = NULL;
742
743 mutex_lock(&rtlpriv->locks.conf_mutex);
744 if ((vif->type == NL80211_IFTYPE_ADHOC) ||
745 (vif->type == NL80211_IFTYPE_AP) ||
746 (vif->type == NL80211_IFTYPE_MESH_POINT)) {
747 if ((changed & BSS_CHANGED_BEACON) ||
748 (changed & BSS_CHANGED_BEACON_ENABLED &&
749 bss_conf->enable_beacon)) {
750 if (mac->beacon_enabled == 0) {
751 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
752 "BSS_CHANGED_BEACON_ENABLED\n");
753
754 /*start hw beacon interrupt. */
755 /*rtlpriv->cfg->ops->set_bcn_reg(hw); */
756 mac->beacon_enabled = 1;
757 rtlpriv->cfg->ops->update_interrupt_mask(hw,
758 rtlpriv->cfg->maps
759 [RTL_IBSS_INT_MASKS],
760 0);
761
762 if (rtlpriv->cfg->ops->linked_set_reg)
763 rtlpriv->cfg->ops->linked_set_reg(hw);
764 }
765 }
766 if ((changed & BSS_CHANGED_BEACON_ENABLED &&
767 !bss_conf->enable_beacon)) {
768 if (mac->beacon_enabled == 1) {
769 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
770 "ADHOC DISABLE BEACON\n");
771
772 mac->beacon_enabled = 0;
773 rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
774 rtlpriv->cfg->maps
775 [RTL_IBSS_INT_MASKS]);
776 }
777 }
778 if (changed & BSS_CHANGED_BEACON_INT) {
779 RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE,
780 "BSS_CHANGED_BEACON_INT\n");
781 mac->beacon_interval = bss_conf->beacon_int;
782 rtlpriv->cfg->ops->set_bcn_intv(hw);
783 }
784 }
785
786 /*TODO: reference to enum ieee80211_bss_change */
787 if (changed & BSS_CHANGED_ASSOC) {
788 if (bss_conf->assoc) {
789 struct ieee80211_sta *sta = NULL;
790 /* we should reset all sec info & cam
791 * before set cam after linked, we should not
792 * reset in disassoc, that will cause tkip->wep
793 * fail because some flag will be wrong */
794 /* reset sec info */
795 rtl_cam_reset_sec_info(hw);
796 /* reset cam to fix wep fail issue
797 * when change from wpa to wep */
798 rtl_cam_reset_all_entry(hw);
799
800 mac->link_state = MAC80211_LINKED;
801 mac->cnt_after_linked = 0;
802 mac->assoc_id = bss_conf->aid;
803 memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
804
805 if (rtlpriv->cfg->ops->linked_set_reg)
806 rtlpriv->cfg->ops->linked_set_reg(hw);
807 rcu_read_lock();
808 sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
809 if (!sta) {
810 pr_err("ieee80211_find_sta returned NULL\n");
811 rcu_read_unlock();
812 goto out;
813 }
814
815 if (vif->type == NL80211_IFTYPE_STATION && sta)
816 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
817 RT_TRACE(rtlpriv, COMP_EASY_CONCURRENT, DBG_LOUD,
818 "send PS STATIC frame\n");
819 if (rtlpriv->dm.supp_phymode_switch) {
820 if (sta->ht_cap.ht_supported)
821 rtl_send_smps_action(hw, sta,
822 IEEE80211_SMPS_STATIC);
823 }
824 rcu_read_unlock();
825
826 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
827 "BSS_CHANGED_ASSOC\n");
828 } else {
829 if (mac->link_state == MAC80211_LINKED) {
830 rtlpriv->enter_ps = false;
831 schedule_work(&rtlpriv->works.lps_change_work);
832 }
833
834 if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
835 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
836 mac->link_state = MAC80211_NOLINK;
837 memset(mac->bssid, 0, ETH_ALEN);
838 mac->vendor = PEER_UNKNOWN;
839
840 if (rtlpriv->dm.supp_phymode_switch) {
841 if (rtlpriv->cfg->ops->chk_switch_dmdp)
842 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
843 }
844
845 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
846 "BSS_CHANGED_UN_ASSOC\n");
847 }
848 }
849
850 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
851 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
852 "BSS_CHANGED_ERP_CTS_PROT\n");
853 mac->use_cts_protect = bss_conf->use_cts_prot;
854 }
855
856 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
857 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
858 "BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
859 bss_conf->use_short_preamble);
860
861 mac->short_preamble = bss_conf->use_short_preamble;
862 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
863 &mac->short_preamble);
864 }
865
866 if (changed & BSS_CHANGED_ERP_SLOT) {
867 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
868 "BSS_CHANGED_ERP_SLOT\n");
869
870 if (bss_conf->use_short_slot)
871 mac->slot_time = RTL_SLOT_TIME_9;
872 else
873 mac->slot_time = RTL_SLOT_TIME_20;
874
875 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
876 &mac->slot_time);
877 }
878
879 if (changed & BSS_CHANGED_HT) {
880 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, "BSS_CHANGED_HT\n");
881 rcu_read_lock();
882 sta = get_sta(hw, vif, bss_conf->bssid);
883 if (sta) {
884 if (sta->ht_cap.ampdu_density >
885 mac->current_ampdu_density)
886 mac->current_ampdu_density =
887 sta->ht_cap.ampdu_density;
888 if (sta->ht_cap.ampdu_factor <
889 mac->current_ampdu_factor)
890 mac->current_ampdu_factor =
891 sta->ht_cap.ampdu_factor;
892 }
893 rcu_read_unlock();
894
895 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
896 &mac->max_mss_density);
897 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
898 &mac->current_ampdu_factor);
899 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
900 &mac->current_ampdu_density);
901 }
902
903 if (changed & BSS_CHANGED_BSSID) {
904 u32 basic_rates;
905
906 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
907 (u8 *) bss_conf->bssid);
908
909 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, "%pM\n",
910 bss_conf->bssid);
911
912 mac->vendor = PEER_UNKNOWN;
913 memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
914 rtlpriv->cfg->ops->set_network_type(hw, vif->type);
915
916 rcu_read_lock();
917 sta = get_sta(hw, vif, bss_conf->bssid);
918 if (!sta) {
919 rcu_read_unlock();
920 goto out;
921 }
922
923 if (rtlhal->current_bandtype == BAND_ON_5G) {
924 mac->mode = WIRELESS_MODE_A;
925 } else {
926 if (sta->supp_rates[0] <= 0xf)
927 mac->mode = WIRELESS_MODE_B;
928 else
929 mac->mode = WIRELESS_MODE_G;
930 }
931
932 if (sta->ht_cap.ht_supported) {
933 if (rtlhal->current_bandtype == BAND_ON_2_4G)
934 mac->mode = WIRELESS_MODE_N_24G;
935 else
936 mac->mode = WIRELESS_MODE_N_5G;
937 }
938
939 /* just station need it, because ibss & ap mode will
940 * set in sta_add, and will be NULL here */
941 if (mac->opmode == NL80211_IFTYPE_STATION) {
942 struct rtl_sta_info *sta_entry;
943 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
944 sta_entry->wireless_mode = mac->mode;
945 }
946
947 if (sta->ht_cap.ht_supported) {
948 mac->ht_enable = true;
949
950 /*
951 * for cisco 1252 bw20 it's wrong
952 * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
953 * mac->bw_40 = true;
954 * }
955 * */
956 }
957
958 if (changed & BSS_CHANGED_BASIC_RATES) {
959 /* for 5G must << RATE_6M_INDEX = 4,
960 * because 5G have no cck rate*/
961 if (rtlhal->current_bandtype == BAND_ON_5G)
962 basic_rates = sta->supp_rates[1] << 4;
963 else
964 basic_rates = sta->supp_rates[0];
965
966 mac->basic_rates = basic_rates;
967 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
968 (u8 *)(&basic_rates));
969 }
970 rcu_read_unlock();
971 }
972
973 /*
974 * For FW LPS:
975 * To tell firmware we have connected
976 * to an AP. For 92SE/CE power save v2.
977 */
978 if (changed & BSS_CHANGED_ASSOC) {
979 if (bss_conf->assoc) {
980 if (ppsc->fwctrl_lps) {
981 u8 mstatus = RT_MEDIA_CONNECT;
982 u8 keep_alive = 10;
983 rtlpriv->cfg->ops->set_hw_reg(hw,
984 HW_VAR_KEEP_ALIVE,
985 &keep_alive);
986
987 rtlpriv->cfg->ops->set_hw_reg(hw,
988 HW_VAR_H2C_FW_JOINBSSRPT,
989 &mstatus);
990 ppsc->report_linked = true;
991 }
992 } else {
993 if (ppsc->fwctrl_lps) {
994 u8 mstatus = RT_MEDIA_DISCONNECT;
995 rtlpriv->cfg->ops->set_hw_reg(hw,
996 HW_VAR_H2C_FW_JOINBSSRPT,
997 &mstatus);
998 ppsc->report_linked = false;
999 }
1000 }
1001 if (rtlpriv->cfg->ops->bt_wifi_media_status_notify)
1002 rtlpriv->cfg->ops->bt_wifi_media_status_notify(hw,
1003 ppsc->report_linked);
1004 }
1005
1006out:
1007 mutex_unlock(&rtlpriv->locks.conf_mutex);
1008}
1009
1010static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1011{
1012 struct rtl_priv *rtlpriv = rtl_priv(hw);
1013 u64 tsf;
1014
1015 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *) (&tsf));
1016 return tsf;
1017}
1018
1019static void rtl_op_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1020 u64 tsf)
1021{
1022 struct rtl_priv *rtlpriv = rtl_priv(hw);
1023 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1024 u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
1025
1026 mac->tsf = tsf;
1027 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, &bibss);
1028}
1029
1030static void rtl_op_reset_tsf(struct ieee80211_hw *hw,
1031 struct ieee80211_vif *vif)
1032{
1033 struct rtl_priv *rtlpriv = rtl_priv(hw);
1034 u8 tmp = 0;
1035
1036 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, &tmp);
1037}
1038
1039static void rtl_op_sta_notify(struct ieee80211_hw *hw,
1040 struct ieee80211_vif *vif,
1041 enum sta_notify_cmd cmd,
1042 struct ieee80211_sta *sta)
1043{
1044 switch (cmd) {
1045 case STA_NOTIFY_SLEEP:
1046 break;
1047 case STA_NOTIFY_AWAKE:
1048 break;
1049 default:
1050 break;
1051 }
1052}
1053
1054static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
1055 struct ieee80211_vif *vif,
1056 enum ieee80211_ampdu_mlme_action action,
1057 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1058 u8 buf_size)
1059{
1060 struct rtl_priv *rtlpriv = rtl_priv(hw);
1061
1062 switch (action) {
1063 case IEEE80211_AMPDU_TX_START:
1064 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1065 "IEEE80211_AMPDU_TX_START: TID:%d\n", tid);
1066 return rtl_tx_agg_start(hw, sta, tid, ssn);
1067 break;
1068 case IEEE80211_AMPDU_TX_STOP_CONT:
1069 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1070 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1071 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1072 "IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid);
1073 return rtl_tx_agg_stop(hw, sta, tid);
1074 case IEEE80211_AMPDU_TX_OPERATIONAL:
1075 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1076 "IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid);
1077 rtl_tx_agg_oper(hw, sta, tid);
1078 break;
1079 case IEEE80211_AMPDU_RX_START:
1080 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1081 "IEEE80211_AMPDU_RX_START:TID:%d\n", tid);
1082 return rtl_rx_agg_start(hw, sta, tid);
1083 case IEEE80211_AMPDU_RX_STOP:
1084 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE,
1085 "IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid);
1086 return rtl_rx_agg_stop(hw, sta, tid);
1087 default:
1088 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1089 "IEEE80211_AMPDU_ERR!!!!:\n");
1090 return -EOPNOTSUPP;
1091 }
1092 return 0;
1093}
1094
1095static void rtl_op_sw_scan_start(struct ieee80211_hw *hw)
1096{
1097 struct rtl_priv *rtlpriv = rtl_priv(hw);
1098 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1099
1100 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1101 mac->act_scanning = true;
1102 if (rtlpriv->link_info.higher_busytraffic) {
1103 mac->skip_scan = true;
1104 return;
1105 }
1106
1107 if (rtlpriv->dm.supp_phymode_switch) {
1108 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1109 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1110 }
1111 if (mac->link_state == MAC80211_LINKED) {
1112 rtlpriv->enter_ps = false;
1113 schedule_work(&rtlpriv->works.lps_change_work);
1114 mac->link_state = MAC80211_LINKED_SCANNING;
1115 } else {
1116 rtl_ips_nic_on(hw);
1117 }
1118
1119 /* Dual mac */
1120 rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1121
1122 rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
1123 rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP);
1124}
1125
1126static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw)
1127{
1128 struct rtl_priv *rtlpriv = rtl_priv(hw);
1129 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1130
1131 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1132 mac->act_scanning = false;
1133 mac->skip_scan = false;
1134 if (rtlpriv->link_info.higher_busytraffic)
1135 return;
1136
1137 /*p2p will use 1/6/11 to scan */
1138 if (mac->n_channels == 3)
1139 mac->p2p_in_use = true;
1140 else
1141 mac->p2p_in_use = false;
1142 mac->n_channels = 0;
1143 /* Dual mac */
1144 rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1145
1146 if (mac->link_state == MAC80211_LINKED_SCANNING) {
1147 mac->link_state = MAC80211_LINKED;
1148 if (mac->opmode == NL80211_IFTYPE_STATION) {
1149 /* fix fwlps issue */
1150 rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
1151 }
1152 }
1153
1154 rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
1155}
1156
1157static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1158 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1159 struct ieee80211_key_conf *key)
1160{
1161 struct rtl_priv *rtlpriv = rtl_priv(hw);
1162 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1163 u8 key_type = NO_ENCRYPTION;
1164 u8 key_idx;
1165 bool group_key = false;
1166 bool wep_only = false;
1167 int err = 0;
1168 u8 mac_addr[ETH_ALEN];
1169 u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1170
1171 if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
1172 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1173 "not open hw encryption\n");
1174 return -ENOSPC; /*User disabled HW-crypto */
1175 }
1176 /* To support IBSS, use sw-crypto for GTK */
1177 if (((vif->type == NL80211_IFTYPE_ADHOC) ||
1178 (vif->type == NL80211_IFTYPE_MESH_POINT)) &&
1179 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
1180 return -ENOSPC;
1181 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1182 "%s hardware based encryption for keyidx: %d, mac: %pM\n",
1183 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
1184 sta ? sta->addr : bcast_addr);
1185 rtlpriv->sec.being_setkey = true;
1186 rtl_ips_nic_on(hw);
1187 mutex_lock(&rtlpriv->locks.conf_mutex);
1188 /* <1> get encryption alg */
1189
1190 switch (key->cipher) {
1191 case WLAN_CIPHER_SUITE_WEP40:
1192 key_type = WEP40_ENCRYPTION;
1193 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP40\n");
1194 break;
1195 case WLAN_CIPHER_SUITE_WEP104:
1196 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP104\n");
1197 key_type = WEP104_ENCRYPTION;
1198 break;
1199 case WLAN_CIPHER_SUITE_TKIP:
1200 key_type = TKIP_ENCRYPTION;
1201 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:TKIP\n");
1202 break;
1203 case WLAN_CIPHER_SUITE_CCMP:
1204 key_type = AESCCMP_ENCRYPTION;
1205 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CCMP\n");
1206 break;
1207 case WLAN_CIPHER_SUITE_AES_CMAC:
1208 /*HW doesn't support CMAC encryption, use software CMAC */
1209 key_type = AESCMAC_ENCRYPTION;
1210 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CMAC\n");
1211 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1212 "HW don't support CMAC encryption, use software CMAC\n");
1213 err = -EOPNOTSUPP;
1214 goto out_unlock;
1215 default:
1216 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "alg_err:%x!!!!\n",
1217 key->cipher);
1218 goto out_unlock;
1219 }
1220 if (key_type == WEP40_ENCRYPTION ||
1221 key_type == WEP104_ENCRYPTION ||
1222 mac->opmode == NL80211_IFTYPE_ADHOC)
1223 rtlpriv->sec.use_defaultkey = true;
1224
1225 /* <2> get key_idx */
1226 key_idx = (u8) (key->keyidx);
1227 if (key_idx > 3)
1228 goto out_unlock;
1229 /* <3> if pairwise key enable_hw_sec */
1230 group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
1231
1232 /* wep always be group key, but there are two conditions:
1233 * 1) wep only: is just for wep enc, in this condition
1234 * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
1235 * will be true & enable_hw_sec will be set when wep
1236 * key setting.
1237 * 2) wep(group) + AES(pairwise): some AP like cisco
1238 * may use it, in this condition enable_hw_sec will not
1239 * be set when wep key setting */
1240 /* we must reset sec_info after lingked before set key,
1241 * or some flag will be wrong*/
1242 if (vif->type == NL80211_IFTYPE_AP ||
1243 vif->type == NL80211_IFTYPE_MESH_POINT) {
1244 if (!group_key || key_type == WEP40_ENCRYPTION ||
1245 key_type == WEP104_ENCRYPTION) {
1246 if (group_key)
1247 wep_only = true;
1248 rtlpriv->cfg->ops->enable_hw_sec(hw);
1249 }
1250 } else {
1251 if ((!group_key) || (mac->opmode == NL80211_IFTYPE_ADHOC) ||
1252 rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
1253 if (rtlpriv->sec.pairwise_enc_algorithm ==
1254 NO_ENCRYPTION &&
1255 (key_type == WEP40_ENCRYPTION ||
1256 key_type == WEP104_ENCRYPTION))
1257 wep_only = true;
1258 rtlpriv->sec.pairwise_enc_algorithm = key_type;
1259 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1260 "set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)\n",
1261 key_type);
1262 rtlpriv->cfg->ops->enable_hw_sec(hw);
1263 }
1264 }
1265 /* <4> set key based on cmd */
1266 switch (cmd) {
1267 case SET_KEY:
1268 if (wep_only) {
1269 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1270 "set WEP(group/pairwise) key\n");
1271 /* Pairwise key with an assigned MAC address. */
1272 rtlpriv->sec.pairwise_enc_algorithm = key_type;
1273 rtlpriv->sec.group_enc_algorithm = key_type;
1274 /*set local buf about wep key. */
1275 memcpy(rtlpriv->sec.key_buf[key_idx],
1276 key->key, key->keylen);
1277 rtlpriv->sec.key_len[key_idx] = key->keylen;
1278 eth_zero_addr(mac_addr);
1279 } else if (group_key) { /* group key */
1280 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1281 "set group key\n");
1282 /* group key */
1283 rtlpriv->sec.group_enc_algorithm = key_type;
1284 /*set local buf about group key. */
1285 memcpy(rtlpriv->sec.key_buf[key_idx],
1286 key->key, key->keylen);
1287 rtlpriv->sec.key_len[key_idx] = key->keylen;
1288 memcpy(mac_addr, bcast_addr, ETH_ALEN);
1289 } else { /* pairwise key */
1290 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1291 "set pairwise key\n");
1292 if (!sta) {
1293 RT_ASSERT(false,
1294 "pairwise key without mac_addr\n");
1295
1296 err = -EOPNOTSUPP;
1297 goto out_unlock;
1298 }
1299 /* Pairwise key with an assigned MAC address. */
1300 rtlpriv->sec.pairwise_enc_algorithm = key_type;
1301 /*set local buf about pairwise key. */
1302 memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1303 key->key, key->keylen);
1304 rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1305 rtlpriv->sec.pairwise_key =
1306 rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1307 memcpy(mac_addr, sta->addr, ETH_ALEN);
1308 }
1309 rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1310 group_key, key_type, wep_only,
1311 false);
1312 /* <5> tell mac80211 do something: */
1313 /*must use sw generate IV, or can not work !!!!. */
1314 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1315 key->hw_key_idx = key_idx;
1316 if (key_type == TKIP_ENCRYPTION)
1317 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1318 /*use software CCMP encryption for management frames (MFP) */
1319 if (key_type == AESCCMP_ENCRYPTION)
1320 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1321 break;
1322 case DISABLE_KEY:
1323 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1324 "disable key delete one entry\n");
1325 /*set local buf about wep key. */
1326 if (vif->type == NL80211_IFTYPE_AP ||
1327 vif->type == NL80211_IFTYPE_MESH_POINT) {
1328 if (sta)
1329 rtl_cam_del_entry(hw, sta->addr);
1330 }
1331 memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1332 rtlpriv->sec.key_len[key_idx] = 0;
1333 eth_zero_addr(mac_addr);
1334 /*
1335 *mac80211 will delete entrys one by one,
1336 *so don't use rtl_cam_reset_all_entry
1337 *or clear all entry here.
1338 */
1339 rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1340
1341 rtl_cam_reset_sec_info(hw);
1342
1343 break;
1344 default:
1345 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1346 "cmd_err:%x!!!!\n", cmd);
1347 }
1348out_unlock:
1349 mutex_unlock(&rtlpriv->locks.conf_mutex);
1350 rtlpriv->sec.being_setkey = false;
1351 return err;
1352}
1353
1354static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1355{
1356 struct rtl_priv *rtlpriv = rtl_priv(hw);
1357
1358 bool radio_state;
1359 bool blocked;
1360 u8 valid = 0;
1361
1362 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1363 return;
1364
1365 mutex_lock(&rtlpriv->locks.conf_mutex);
1366
1367 /*if Radio On return true here */
1368 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1369
1370 if (valid) {
1371 if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1372 rtlpriv->rfkill.rfkill_state = radio_state;
1373
1374 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
1375 "wireless radio switch turned %s\n",
1376 radio_state ? "on" : "off");
1377
1378 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
1379 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1380 }
1381 }
1382
1383 mutex_unlock(&rtlpriv->locks.conf_mutex);
1384}
1385
1386/* this function is called by mac80211 to flush tx buffer
1387 * before switch channel or power save, or tx buffer packet
1388 * maybe send after offchannel or rf sleep, this may cause
1389 * dis-association by AP */
1390static void rtl_op_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1391{
1392 struct rtl_priv *rtlpriv = rtl_priv(hw);
1393
1394 if (rtlpriv->intf_ops->flush)
1395 rtlpriv->intf_ops->flush(hw, drop);
1396}
1397
1398const struct ieee80211_ops rtl_ops = {
1399 .start = rtl_op_start,
1400 .stop = rtl_op_stop,
1401 .tx = rtl_op_tx,
1402 .add_interface = rtl_op_add_interface,
1403 .remove_interface = rtl_op_remove_interface,
1404 .change_interface = rtl_op_change_interface,
1405 .config = rtl_op_config,
1406 .configure_filter = rtl_op_configure_filter,
1407 .sta_add = rtl_op_sta_add,
1408 .sta_remove = rtl_op_sta_remove,
1409 .set_key = rtl_op_set_key,
1410 .conf_tx = rtl_op_conf_tx,
1411 .bss_info_changed = rtl_op_bss_info_changed,
1412 .get_tsf = rtl_op_get_tsf,
1413 .set_tsf = rtl_op_set_tsf,
1414 .reset_tsf = rtl_op_reset_tsf,
1415 .sta_notify = rtl_op_sta_notify,
1416 .ampdu_action = rtl_op_ampdu_action,
1417 .sw_scan_start = rtl_op_sw_scan_start,
1418 .sw_scan_complete = rtl_op_sw_scan_complete,
1419 .rfkill_poll = rtl_op_rfkill_poll,
1420 .flush = rtl_op_flush,
1421};
1422EXPORT_SYMBOL_GPL(rtl_ops);