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iwlwifi: mvm: BT Coex - set the proper LUT for single ant devices
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / base.c
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 "rc.h"
32 #include "base.h"
33 #include "efuse.h"
34 #include "cam.h"
35 #include "ps.h"
36 #include "regd.h"
37
38 #include <linux/ip.h>
39 #include <linux/module.h>
40
41 /*
42 *NOTICE!!!: This file will be very big, we should
43 *keep it clear under following roles:
44 *
45 *This file include following parts, so, if you add new
46 *functions into this file, please check which part it
47 *should includes. or check if you should add new part
48 *for this file:
49 *
50 *1) mac80211 init functions
51 *2) tx information functions
52 *3) functions called by core.c
53 *4) wq & timer callback functions
54 *5) frame process functions
55 *6) IOT functions
56 *7) sysfs functions
57 *8) vif functions
58 *9) ...
59 */
60
61 /*********************************************************
62 *
63 * mac80211 init functions
64 *
65 *********************************************************/
66 static struct ieee80211_channel rtl_channeltable_2g[] = {
67 {.center_freq = 2412, .hw_value = 1,},
68 {.center_freq = 2417, .hw_value = 2,},
69 {.center_freq = 2422, .hw_value = 3,},
70 {.center_freq = 2427, .hw_value = 4,},
71 {.center_freq = 2432, .hw_value = 5,},
72 {.center_freq = 2437, .hw_value = 6,},
73 {.center_freq = 2442, .hw_value = 7,},
74 {.center_freq = 2447, .hw_value = 8,},
75 {.center_freq = 2452, .hw_value = 9,},
76 {.center_freq = 2457, .hw_value = 10,},
77 {.center_freq = 2462, .hw_value = 11,},
78 {.center_freq = 2467, .hw_value = 12,},
79 {.center_freq = 2472, .hw_value = 13,},
80 {.center_freq = 2484, .hw_value = 14,},
81 };
82
83 static struct ieee80211_channel rtl_channeltable_5g[] = {
84 {.center_freq = 5180, .hw_value = 36,},
85 {.center_freq = 5200, .hw_value = 40,},
86 {.center_freq = 5220, .hw_value = 44,},
87 {.center_freq = 5240, .hw_value = 48,},
88 {.center_freq = 5260, .hw_value = 52,},
89 {.center_freq = 5280, .hw_value = 56,},
90 {.center_freq = 5300, .hw_value = 60,},
91 {.center_freq = 5320, .hw_value = 64,},
92 {.center_freq = 5500, .hw_value = 100,},
93 {.center_freq = 5520, .hw_value = 104,},
94 {.center_freq = 5540, .hw_value = 108,},
95 {.center_freq = 5560, .hw_value = 112,},
96 {.center_freq = 5580, .hw_value = 116,},
97 {.center_freq = 5600, .hw_value = 120,},
98 {.center_freq = 5620, .hw_value = 124,},
99 {.center_freq = 5640, .hw_value = 128,},
100 {.center_freq = 5660, .hw_value = 132,},
101 {.center_freq = 5680, .hw_value = 136,},
102 {.center_freq = 5700, .hw_value = 140,},
103 {.center_freq = 5745, .hw_value = 149,},
104 {.center_freq = 5765, .hw_value = 153,},
105 {.center_freq = 5785, .hw_value = 157,},
106 {.center_freq = 5805, .hw_value = 161,},
107 {.center_freq = 5825, .hw_value = 165,},
108 };
109
110 static struct ieee80211_rate rtl_ratetable_2g[] = {
111 {.bitrate = 10, .hw_value = 0x00,},
112 {.bitrate = 20, .hw_value = 0x01,},
113 {.bitrate = 55, .hw_value = 0x02,},
114 {.bitrate = 110, .hw_value = 0x03,},
115 {.bitrate = 60, .hw_value = 0x04,},
116 {.bitrate = 90, .hw_value = 0x05,},
117 {.bitrate = 120, .hw_value = 0x06,},
118 {.bitrate = 180, .hw_value = 0x07,},
119 {.bitrate = 240, .hw_value = 0x08,},
120 {.bitrate = 360, .hw_value = 0x09,},
121 {.bitrate = 480, .hw_value = 0x0a,},
122 {.bitrate = 540, .hw_value = 0x0b,},
123 };
124
125 static struct ieee80211_rate rtl_ratetable_5g[] = {
126 {.bitrate = 60, .hw_value = 0x04,},
127 {.bitrate = 90, .hw_value = 0x05,},
128 {.bitrate = 120, .hw_value = 0x06,},
129 {.bitrate = 180, .hw_value = 0x07,},
130 {.bitrate = 240, .hw_value = 0x08,},
131 {.bitrate = 360, .hw_value = 0x09,},
132 {.bitrate = 480, .hw_value = 0x0a,},
133 {.bitrate = 540, .hw_value = 0x0b,},
134 };
135
136 static const struct ieee80211_supported_band rtl_band_2ghz = {
137 .band = IEEE80211_BAND_2GHZ,
138
139 .channels = rtl_channeltable_2g,
140 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
141
142 .bitrates = rtl_ratetable_2g,
143 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
144
145 .ht_cap = {0},
146 };
147
148 static struct ieee80211_supported_band rtl_band_5ghz = {
149 .band = IEEE80211_BAND_5GHZ,
150
151 .channels = rtl_channeltable_5g,
152 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
153
154 .bitrates = rtl_ratetable_5g,
155 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
156
157 .ht_cap = {0},
158 };
159
160 static const u8 tid_to_ac[] = {
161 2, /* IEEE80211_AC_BE */
162 3, /* IEEE80211_AC_BK */
163 3, /* IEEE80211_AC_BK */
164 2, /* IEEE80211_AC_BE */
165 1, /* IEEE80211_AC_VI */
166 1, /* IEEE80211_AC_VI */
167 0, /* IEEE80211_AC_VO */
168 0, /* IEEE80211_AC_VO */
169 };
170
171 u8 rtl_tid_to_ac(u8 tid)
172 {
173 return tid_to_ac[tid];
174 }
175 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
176
177 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
178 struct ieee80211_sta_ht_cap *ht_cap)
179 {
180 struct rtl_priv *rtlpriv = rtl_priv(hw);
181 struct rtl_phy *rtlphy = &(rtlpriv->phy);
182
183 ht_cap->ht_supported = true;
184 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
185 IEEE80211_HT_CAP_SGI_40 |
186 IEEE80211_HT_CAP_SGI_20 |
187 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
188
189 if (rtlpriv->rtlhal.disable_amsdu_8k)
190 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
191
192 /*
193 *Maximum length of AMPDU that the STA can receive.
194 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
195 */
196 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
197
198 /*Minimum MPDU start spacing , */
199 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
200
201 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
202
203 /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
204 *base on ant_num
205 *rx_mask: RX mask
206 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
207 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
208 *if rx_ant >= 3 rx_mask[2]= 0xff;
209 *if BW_40 rx_mask[4]= 0x01;
210 *highest supported RX rate
211 */
212 if (rtlpriv->dm.supp_phymode_switch) {
213
214 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
215 "Support phy mode switch\n");
216
217 ht_cap->mcs.rx_mask[0] = 0xFF;
218 ht_cap->mcs.rx_mask[1] = 0xFF;
219 ht_cap->mcs.rx_mask[4] = 0x01;
220
221 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
222 } else {
223 if (get_rf_type(rtlphy) == RF_1T2R ||
224 get_rf_type(rtlphy) == RF_2T2R) {
225 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
226 "1T2R or 2T2R\n");
227 ht_cap->mcs.rx_mask[0] = 0xFF;
228 ht_cap->mcs.rx_mask[1] = 0xFF;
229 ht_cap->mcs.rx_mask[4] = 0x01;
230
231 ht_cap->mcs.rx_highest =
232 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
233 } else if (get_rf_type(rtlphy) == RF_1T1R) {
234 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
235
236 ht_cap->mcs.rx_mask[0] = 0xFF;
237 ht_cap->mcs.rx_mask[1] = 0x00;
238 ht_cap->mcs.rx_mask[4] = 0x01;
239
240 ht_cap->mcs.rx_highest =
241 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
242 }
243 }
244 }
245
246 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
247 {
248 struct rtl_priv *rtlpriv = rtl_priv(hw);
249 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
250 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
251 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
252 struct ieee80211_supported_band *sband;
253
254
255 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
256 BAND_ON_BOTH) {
257 /* 1: 2.4 G bands */
258 /* <1> use mac->bands as mem for hw->wiphy->bands */
259 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
260
261 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
262 * to default value(1T1R) */
263 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
264 sizeof(struct ieee80211_supported_band));
265
266 /* <3> init ht cap base on ant_num */
267 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
268
269 /* <4> set mac->sband to wiphy->sband */
270 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
271
272 /* 2: 5 G bands */
273 /* <1> use mac->bands as mem for hw->wiphy->bands */
274 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
275
276 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
277 * to default value(1T1R) */
278 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
279 sizeof(struct ieee80211_supported_band));
280
281 /* <3> init ht cap base on ant_num */
282 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
283
284 /* <4> set mac->sband to wiphy->sband */
285 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
286 } else {
287 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
288 /* <1> use mac->bands as mem for hw->wiphy->bands */
289 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
290
291 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
292 * to default value(1T1R) */
293 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
294 &rtl_band_2ghz,
295 sizeof(struct ieee80211_supported_band));
296
297 /* <3> init ht cap base on ant_num */
298 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
299
300 /* <4> set mac->sband to wiphy->sband */
301 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
302 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
303 /* <1> use mac->bands as mem for hw->wiphy->bands */
304 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
305
306 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
307 * to default value(1T1R) */
308 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
309 &rtl_band_5ghz,
310 sizeof(struct ieee80211_supported_band));
311
312 /* <3> init ht cap base on ant_num */
313 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
314
315 /* <4> set mac->sband to wiphy->sband */
316 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
317 } else {
318 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
319 rtlhal->current_bandtype);
320 }
321 }
322 /* <5> set hw caps */
323 hw->flags = IEEE80211_HW_SIGNAL_DBM |
324 IEEE80211_HW_RX_INCLUDES_FCS |
325 IEEE80211_HW_AMPDU_AGGREGATION |
326 IEEE80211_HW_CONNECTION_MONITOR |
327 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
328 IEEE80211_HW_CONNECTION_MONITOR |
329 IEEE80211_HW_MFP_CAPABLE |
330 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
331
332 /* swlps or hwlps has been set in diff chip in init_sw_vars */
333 if (rtlpriv->psc.swctrl_lps)
334 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
335 IEEE80211_HW_PS_NULLFUNC_STACK |
336 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
337 0;
338
339 hw->wiphy->interface_modes =
340 BIT(NL80211_IFTYPE_AP) |
341 BIT(NL80211_IFTYPE_STATION) |
342 BIT(NL80211_IFTYPE_ADHOC) |
343 BIT(NL80211_IFTYPE_MESH_POINT) |
344 BIT(NL80211_IFTYPE_P2P_CLIENT) |
345 BIT(NL80211_IFTYPE_P2P_GO);
346
347 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
348 hw->wiphy->rts_threshold = 2347;
349
350 hw->queues = AC_MAX;
351 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
352
353 /* TODO: Correct this value for our hw */
354 /* TODO: define these hard code value */
355 hw->channel_change_time = 100;
356 hw->max_listen_interval = 10;
357 hw->max_rate_tries = 4;
358 /* hw->max_rates = 1; */
359 hw->sta_data_size = sizeof(struct rtl_sta_info);
360
361 /* <6> mac address */
362 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
363 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
364 } else {
365 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
366 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
367 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
368 }
369
370 }
371
372 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
373 {
374 struct rtl_priv *rtlpriv = rtl_priv(hw);
375
376 /* <1> timer */
377 setup_timer(&rtlpriv->works.watchdog_timer,
378 rtl_watch_dog_timer_callback, (unsigned long)hw);
379 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
380 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
381
382 /* <2> work queue */
383 rtlpriv->works.hw = hw;
384 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
385 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
386 (void *)rtl_watchdog_wq_callback);
387 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
388 (void *)rtl_ips_nic_off_wq_callback);
389 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
390 (void *)rtl_swlps_wq_callback);
391 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
392 (void *)rtl_swlps_rfon_wq_callback);
393 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
394 (void *)rtl_fwevt_wq_callback);
395
396 }
397
398 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
399 {
400 struct rtl_priv *rtlpriv = rtl_priv(hw);
401
402 del_timer_sync(&rtlpriv->works.watchdog_timer);
403
404 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
405 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
406 cancel_delayed_work(&rtlpriv->works.ps_work);
407 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
408 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
409 }
410 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
411
412 void rtl_init_rfkill(struct ieee80211_hw *hw)
413 {
414 struct rtl_priv *rtlpriv = rtl_priv(hw);
415
416 bool radio_state;
417 bool blocked;
418 u8 valid = 0;
419
420 /*set init state to on */
421 rtlpriv->rfkill.rfkill_state = true;
422 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
423
424 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
425
426 if (valid) {
427 pr_info("wireless switch is %s\n",
428 rtlpriv->rfkill.rfkill_state ? "on" : "off");
429
430 rtlpriv->rfkill.rfkill_state = radio_state;
431
432 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
433 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
434 }
435
436 wiphy_rfkill_start_polling(hw->wiphy);
437 }
438 EXPORT_SYMBOL(rtl_init_rfkill);
439
440 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
441 {
442 wiphy_rfkill_stop_polling(hw->wiphy);
443 }
444 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
445
446 int rtl_init_core(struct ieee80211_hw *hw)
447 {
448 struct rtl_priv *rtlpriv = rtl_priv(hw);
449 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
450
451 /* <1> init mac80211 */
452 _rtl_init_mac80211(hw);
453 rtlmac->hw = hw;
454
455 /* <2> rate control register */
456 hw->rate_control_algorithm = "rtl_rc";
457
458 /*
459 * <3> init CRDA must come after init
460 * mac80211 hw in _rtl_init_mac80211.
461 */
462 if (rtl_regd_init(hw, rtl_reg_notifier)) {
463 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
464 return 1;
465 }
466
467 /* <4> locks */
468 mutex_init(&rtlpriv->locks.conf_mutex);
469 mutex_init(&rtlpriv->locks.ps_mutex);
470 spin_lock_init(&rtlpriv->locks.ips_lock);
471 spin_lock_init(&rtlpriv->locks.irq_th_lock);
472 spin_lock_init(&rtlpriv->locks.irq_pci_lock);
473 spin_lock_init(&rtlpriv->locks.tx_lock);
474 spin_lock_init(&rtlpriv->locks.h2c_lock);
475 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
476 spin_lock_init(&rtlpriv->locks.rf_lock);
477 spin_lock_init(&rtlpriv->locks.waitq_lock);
478 spin_lock_init(&rtlpriv->locks.entry_list_lock);
479 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
480 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
481 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
482 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
483 spin_lock_init(&rtlpriv->locks.lps_lock);
484
485 /* <5> init list */
486 INIT_LIST_HEAD(&rtlpriv->entry_list);
487
488 rtlmac->link_state = MAC80211_NOLINK;
489
490 /* <6> init deferred work */
491 _rtl_init_deferred_work(hw);
492
493 return 0;
494 }
495 EXPORT_SYMBOL_GPL(rtl_init_core);
496
497 void rtl_deinit_core(struct ieee80211_hw *hw)
498 {
499 }
500 EXPORT_SYMBOL_GPL(rtl_deinit_core);
501
502 void rtl_init_rx_config(struct ieee80211_hw *hw)
503 {
504 struct rtl_priv *rtlpriv = rtl_priv(hw);
505 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
506
507 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
508 }
509 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
510
511 /*********************************************************
512 *
513 * tx information functions
514 *
515 *********************************************************/
516 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
517 struct rtl_tcb_desc *tcb_desc,
518 struct ieee80211_tx_info *info)
519 {
520 struct rtl_priv *rtlpriv = rtl_priv(hw);
521 u8 rate_flag = info->control.rates[0].flags;
522
523 tcb_desc->use_shortpreamble = false;
524
525 /* 1M can only use Long Preamble. 11B spec */
526 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
527 return;
528 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
529 tcb_desc->use_shortpreamble = true;
530
531 return;
532 }
533
534 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
535 struct ieee80211_sta *sta,
536 struct rtl_tcb_desc *tcb_desc,
537 struct ieee80211_tx_info *info)
538 {
539 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
540 u8 rate_flag = info->control.rates[0].flags;
541 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
542 tcb_desc->use_shortgi = false;
543
544 if (sta == NULL)
545 return;
546
547 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
548 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
549
550 if (!(sta->ht_cap.ht_supported))
551 return;
552
553 if (!sgi_40 && !sgi_20)
554 return;
555
556 if (mac->opmode == NL80211_IFTYPE_STATION)
557 bw_40 = mac->bw_40;
558 else if (mac->opmode == NL80211_IFTYPE_AP ||
559 mac->opmode == NL80211_IFTYPE_ADHOC ||
560 mac->opmode == NL80211_IFTYPE_MESH_POINT)
561 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
562
563 if (bw_40 && sgi_40)
564 tcb_desc->use_shortgi = true;
565 else if ((bw_40 == false) && sgi_20)
566 tcb_desc->use_shortgi = true;
567
568 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
569 tcb_desc->use_shortgi = false;
570 }
571
572 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
573 struct rtl_tcb_desc *tcb_desc,
574 struct ieee80211_tx_info *info)
575 {
576 struct rtl_priv *rtlpriv = rtl_priv(hw);
577 u8 rate_flag = info->control.rates[0].flags;
578
579 /* Common Settings */
580 tcb_desc->rts_stbc = false;
581 tcb_desc->cts_enable = false;
582 tcb_desc->rts_sc = 0;
583 tcb_desc->rts_bw = false;
584 tcb_desc->rts_use_shortpreamble = false;
585 tcb_desc->rts_use_shortgi = false;
586
587 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
588 /* Use CTS-to-SELF in protection mode. */
589 tcb_desc->rts_enable = true;
590 tcb_desc->cts_enable = true;
591 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
592 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
593 /* Use RTS-CTS in protection mode. */
594 tcb_desc->rts_enable = true;
595 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
596 }
597 }
598
599 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
600 struct ieee80211_sta *sta,
601 struct rtl_tcb_desc *tcb_desc)
602 {
603 struct rtl_priv *rtlpriv = rtl_priv(hw);
604 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
605 struct rtl_sta_info *sta_entry = NULL;
606 u8 ratr_index = 7;
607
608 if (sta) {
609 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
610 ratr_index = sta_entry->ratr_index;
611 }
612 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
613 if (mac->opmode == NL80211_IFTYPE_STATION) {
614 tcb_desc->ratr_index = 0;
615 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
616 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
617 if (tcb_desc->multicast || tcb_desc->broadcast) {
618 tcb_desc->hw_rate =
619 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
620 tcb_desc->use_driver_rate = 1;
621 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
622 } else {
623 tcb_desc->ratr_index = ratr_index;
624 }
625 } else if (mac->opmode == NL80211_IFTYPE_AP) {
626 tcb_desc->ratr_index = ratr_index;
627 }
628 }
629
630 if (rtlpriv->dm.useramask) {
631 tcb_desc->ratr_index = ratr_index;
632 /* TODO we will differentiate adhoc and station future */
633 if (mac->opmode == NL80211_IFTYPE_STATION ||
634 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
635 tcb_desc->mac_id = 0;
636
637 if (mac->mode == WIRELESS_MODE_N_24G)
638 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
639 else if (mac->mode == WIRELESS_MODE_N_5G)
640 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
641 else if (mac->mode & WIRELESS_MODE_G)
642 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
643 else if (mac->mode & WIRELESS_MODE_B)
644 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
645 else if (mac->mode & WIRELESS_MODE_A)
646 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
647 } else if (mac->opmode == NL80211_IFTYPE_AP ||
648 mac->opmode == NL80211_IFTYPE_ADHOC) {
649 if (NULL != sta) {
650 if (sta->aid > 0)
651 tcb_desc->mac_id = sta->aid + 1;
652 else
653 tcb_desc->mac_id = 1;
654 } else {
655 tcb_desc->mac_id = 0;
656 }
657 }
658 }
659 }
660
661 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
662 struct ieee80211_sta *sta,
663 struct rtl_tcb_desc *tcb_desc)
664 {
665 struct rtl_priv *rtlpriv = rtl_priv(hw);
666 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
667
668 tcb_desc->packet_bw = false;
669 if (!sta)
670 return;
671 if (mac->opmode == NL80211_IFTYPE_AP ||
672 mac->opmode == NL80211_IFTYPE_ADHOC ||
673 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
674 if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
675 return;
676 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
677 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
678 return;
679 }
680 if (tcb_desc->multicast || tcb_desc->broadcast)
681 return;
682
683 /*use legency rate, shall use 20MHz */
684 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
685 return;
686
687 tcb_desc->packet_bw = true;
688 }
689
690 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
691 {
692 struct rtl_priv *rtlpriv = rtl_priv(hw);
693 struct rtl_phy *rtlphy = &(rtlpriv->phy);
694 u8 hw_rate;
695
696 if (get_rf_type(rtlphy) == RF_2T2R)
697 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
698 else
699 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
700
701 return hw_rate;
702 }
703
704 /* mac80211's rate_idx is like this:
705 *
706 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
707 *
708 * B/G rate:
709 * (rx_status->flag & RX_FLAG_HT) = 0,
710 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
711 *
712 * N rate:
713 * (rx_status->flag & RX_FLAG_HT) = 1,
714 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
715 *
716 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
717 * A rate:
718 * (rx_status->flag & RX_FLAG_HT) = 0,
719 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
720 *
721 * N rate:
722 * (rx_status->flag & RX_FLAG_HT) = 1,
723 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
724 */
725 int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
726 bool isht, u8 desc_rate, bool first_ampdu)
727 {
728 int rate_idx;
729
730 if (false == isht) {
731 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
732 switch (desc_rate) {
733 case DESC92_RATE1M:
734 rate_idx = 0;
735 break;
736 case DESC92_RATE2M:
737 rate_idx = 1;
738 break;
739 case DESC92_RATE5_5M:
740 rate_idx = 2;
741 break;
742 case DESC92_RATE11M:
743 rate_idx = 3;
744 break;
745 case DESC92_RATE6M:
746 rate_idx = 4;
747 break;
748 case DESC92_RATE9M:
749 rate_idx = 5;
750 break;
751 case DESC92_RATE12M:
752 rate_idx = 6;
753 break;
754 case DESC92_RATE18M:
755 rate_idx = 7;
756 break;
757 case DESC92_RATE24M:
758 rate_idx = 8;
759 break;
760 case DESC92_RATE36M:
761 rate_idx = 9;
762 break;
763 case DESC92_RATE48M:
764 rate_idx = 10;
765 break;
766 case DESC92_RATE54M:
767 rate_idx = 11;
768 break;
769 default:
770 rate_idx = 0;
771 break;
772 }
773 } else {
774 switch (desc_rate) {
775 case DESC92_RATE6M:
776 rate_idx = 0;
777 break;
778 case DESC92_RATE9M:
779 rate_idx = 1;
780 break;
781 case DESC92_RATE12M:
782 rate_idx = 2;
783 break;
784 case DESC92_RATE18M:
785 rate_idx = 3;
786 break;
787 case DESC92_RATE24M:
788 rate_idx = 4;
789 break;
790 case DESC92_RATE36M:
791 rate_idx = 5;
792 break;
793 case DESC92_RATE48M:
794 rate_idx = 6;
795 break;
796 case DESC92_RATE54M:
797 rate_idx = 7;
798 break;
799 default:
800 rate_idx = 0;
801 break;
802 }
803 }
804
805 } else {
806
807 switch (desc_rate) {
808 case DESC92_RATEMCS0:
809 rate_idx = 0;
810 break;
811 case DESC92_RATEMCS1:
812 rate_idx = 1;
813 break;
814 case DESC92_RATEMCS2:
815 rate_idx = 2;
816 break;
817 case DESC92_RATEMCS3:
818 rate_idx = 3;
819 break;
820 case DESC92_RATEMCS4:
821 rate_idx = 4;
822 break;
823 case DESC92_RATEMCS5:
824 rate_idx = 5;
825 break;
826 case DESC92_RATEMCS6:
827 rate_idx = 6;
828 break;
829 case DESC92_RATEMCS7:
830 rate_idx = 7;
831 break;
832 case DESC92_RATEMCS8:
833 rate_idx = 8;
834 break;
835 case DESC92_RATEMCS9:
836 rate_idx = 9;
837 break;
838 case DESC92_RATEMCS10:
839 rate_idx = 10;
840 break;
841 case DESC92_RATEMCS11:
842 rate_idx = 11;
843 break;
844 case DESC92_RATEMCS12:
845 rate_idx = 12;
846 break;
847 case DESC92_RATEMCS13:
848 rate_idx = 13;
849 break;
850 case DESC92_RATEMCS14:
851 rate_idx = 14;
852 break;
853 case DESC92_RATEMCS15:
854 rate_idx = 15;
855 break;
856 default:
857 rate_idx = 0;
858 break;
859 }
860 }
861 return rate_idx;
862 }
863 EXPORT_SYMBOL(rtlwifi_rate_mapping);
864
865 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
866 {
867 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
868 struct rtl_priv *rtlpriv = rtl_priv(hw);
869 __le16 fc = rtl_get_fc(skb);
870
871 if (rtlpriv->dm.supp_phymode_switch &&
872 mac->link_state < MAC80211_LINKED &&
873 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
874 if (rtlpriv->cfg->ops->chk_switch_dmdp)
875 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
876 }
877 if (ieee80211_is_auth(fc)) {
878 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
879 rtl_ips_nic_on(hw);
880
881 mac->link_state = MAC80211_LINKING;
882 /* Dual mac */
883 rtlpriv->phy.need_iqk = true;
884 }
885
886 return true;
887 }
888 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
889
890 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
891 struct ieee80211_tx_info *info,
892 struct ieee80211_sta *sta,
893 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
894 {
895 struct rtl_priv *rtlpriv = rtl_priv(hw);
896 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
897 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
898 struct ieee80211_rate *txrate;
899 __le16 fc = hdr->frame_control;
900
901 txrate = ieee80211_get_tx_rate(hw, info);
902 if (txrate)
903 tcb_desc->hw_rate = txrate->hw_value;
904 else
905 tcb_desc->hw_rate = 0;
906
907 if (ieee80211_is_data(fc)) {
908 /*
909 *we set data rate INX 0
910 *in rtl_rc.c if skb is special data or
911 *mgt which need low data rate.
912 */
913
914 /*
915 *So tcb_desc->hw_rate is just used for
916 *special data and mgt frames
917 */
918 if (info->control.rates[0].idx == 0 ||
919 ieee80211_is_nullfunc(fc)) {
920 tcb_desc->use_driver_rate = true;
921 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
922
923 tcb_desc->disable_ratefallback = 1;
924 } else {
925 /*
926 *because hw will nerver use hw_rate
927 *when tcb_desc->use_driver_rate = false
928 *so we never set highest N rate here,
929 *and N rate will all be controlled by FW
930 *when tcb_desc->use_driver_rate = false
931 */
932 if (sta && (sta->ht_cap.ht_supported)) {
933 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
934 } else {
935 if (rtlmac->mode == WIRELESS_MODE_B) {
936 tcb_desc->hw_rate =
937 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
938 } else {
939 tcb_desc->hw_rate =
940 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
941 }
942 }
943 }
944
945 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
946 tcb_desc->multicast = 1;
947 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
948 tcb_desc->broadcast = 1;
949
950 _rtl_txrate_selectmode(hw, sta, tcb_desc);
951 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
952 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
953 _rtl_query_shortgi(hw, sta, tcb_desc, info);
954 _rtl_query_protection_mode(hw, tcb_desc, info);
955 } else {
956 tcb_desc->use_driver_rate = true;
957 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
958 tcb_desc->disable_ratefallback = 1;
959 tcb_desc->mac_id = 0;
960 tcb_desc->packet_bw = false;
961 }
962 }
963 EXPORT_SYMBOL(rtl_get_tcb_desc);
964
965 static bool addbareq_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
966 {
967 struct rtl_priv *rtlpriv = rtl_priv(hw);
968 struct ieee80211_sta *sta = NULL;
969 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
970 struct rtl_sta_info *sta_entry = NULL;
971 struct ieee80211_mgmt *mgmt = (void *)skb->data;
972 u16 capab = 0, tid = 0;
973 struct rtl_tid_data *tid_data;
974 struct sk_buff *skb_delba = NULL;
975 struct ieee80211_rx_status rx_status = { 0 };
976
977 rcu_read_lock();
978 sta = rtl_find_sta(hw, hdr->addr3);
979 if (sta == NULL) {
980 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_EMERG,
981 "sta is NULL\n");
982 rcu_read_unlock();
983 return true;
984 }
985
986 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
987 if (!sta_entry) {
988 rcu_read_unlock();
989 return true;
990 }
991 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
992 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
993 tid_data = &sta_entry->tids[tid];
994 if (tid_data->agg.rx_agg_state == RTL_RX_AGG_START) {
995 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
996 if (skb_delba) {
997 rx_status.freq = hw->conf.chandef.chan->center_freq;
998 rx_status.band = hw->conf.chandef.chan->band;
999 rx_status.flag |= RX_FLAG_DECRYPTED;
1000 rx_status.flag |= RX_FLAG_MACTIME_END;
1001 rx_status.rate_idx = 0;
1002 rx_status.signal = 50 + 10;
1003 memcpy(IEEE80211_SKB_RXCB(skb_delba), &rx_status,
1004 sizeof(rx_status));
1005 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1006 "fake del\n", skb_delba->data,
1007 skb_delba->len);
1008 ieee80211_rx_irqsafe(hw, skb_delba);
1009 }
1010 }
1011 rcu_read_unlock();
1012 return false;
1013 }
1014
1015 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1016 {
1017 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1018 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1019 struct rtl_priv *rtlpriv = rtl_priv(hw);
1020 __le16 fc = hdr->frame_control;
1021 u8 *act = (u8 *)skb->data + MAC80211_3ADDR_LEN;
1022 u8 category;
1023
1024 if (!ieee80211_is_action(fc))
1025 return true;
1026
1027 category = *act;
1028 act++;
1029 switch (category) {
1030 case ACT_CAT_BA:
1031 switch (*act) {
1032 case ACT_ADDBAREQ:
1033 if (mac->act_scanning)
1034 return false;
1035
1036 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1037 "%s ACT_ADDBAREQ From :%pM\n",
1038 is_tx ? "Tx" : "Rx", hdr->addr2);
1039 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1040 skb->data, skb->len);
1041 if (!is_tx)
1042 if (addbareq_rx(hw, skb))
1043 return true;
1044 break;
1045 case ACT_ADDBARSP:
1046 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1047 "%s ACT_ADDBARSP From :%pM\n",
1048 is_tx ? "Tx" : "Rx", hdr->addr2);
1049 break;
1050 case ACT_DELBA:
1051 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1052 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1053 break;
1054 }
1055 break;
1056 default:
1057 break;
1058 }
1059
1060 return true;
1061 }
1062 EXPORT_SYMBOL_GPL(rtl_action_proc);
1063
1064 /*should call before software enc*/
1065 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1066 {
1067 struct rtl_priv *rtlpriv = rtl_priv(hw);
1068 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1069 __le16 fc = rtl_get_fc(skb);
1070 u16 ether_type;
1071 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1072 const struct iphdr *ip;
1073
1074 if (!ieee80211_is_data(fc))
1075 return false;
1076
1077
1078 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
1079 SNAP_SIZE + PROTOC_TYPE_SIZE);
1080 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
1081 /* ether_type = ntohs(ether_type); */
1082
1083 if (ETH_P_IP == ether_type) {
1084 if (IPPROTO_UDP == ip->protocol) {
1085 struct udphdr *udp = (struct udphdr *)((u8 *) ip +
1086 (ip->ihl << 2));
1087 if (((((u8 *) udp)[1] == 68) &&
1088 (((u8 *) udp)[3] == 67)) ||
1089 ((((u8 *) udp)[1] == 67) &&
1090 (((u8 *) udp)[3] == 68))) {
1091 /*
1092 * 68 : UDP BOOTP client
1093 * 67 : UDP BOOTP server
1094 */
1095 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1096 DBG_DMESG, "dhcp %s !!\n",
1097 is_tx ? "Tx" : "Rx");
1098
1099 if (is_tx) {
1100 rtlpriv->enter_ps = false;
1101 schedule_work(&rtlpriv->
1102 works.lps_change_work);
1103 ppsc->last_delaylps_stamp_jiffies =
1104 jiffies;
1105 }
1106
1107 return true;
1108 }
1109 }
1110 } else if (ETH_P_ARP == ether_type) {
1111 if (is_tx) {
1112 rtlpriv->enter_ps = false;
1113 schedule_work(&rtlpriv->works.lps_change_work);
1114 ppsc->last_delaylps_stamp_jiffies = jiffies;
1115 }
1116
1117 return true;
1118 } else if (ETH_P_PAE == ether_type) {
1119 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1120 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
1121
1122 if (is_tx) {
1123 rtlpriv->enter_ps = false;
1124 schedule_work(&rtlpriv->works.lps_change_work);
1125 ppsc->last_delaylps_stamp_jiffies = jiffies;
1126 }
1127
1128 return true;
1129 } else if (ETH_P_IPV6 == ether_type) {
1130 /* IPv6 */
1131 return true;
1132 }
1133
1134 return false;
1135 }
1136 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1137
1138 /*********************************************************
1139 *
1140 * functions called by core.c
1141 *
1142 *********************************************************/
1143 int rtl_tx_agg_start(struct ieee80211_hw *hw,
1144 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1145 {
1146 struct rtl_priv *rtlpriv = rtl_priv(hw);
1147 struct rtl_tid_data *tid_data;
1148 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1149 struct rtl_sta_info *sta_entry = NULL;
1150
1151 if (sta == NULL)
1152 return -EINVAL;
1153
1154 if (unlikely(tid >= MAX_TID_COUNT))
1155 return -EINVAL;
1156
1157 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1158 if (!sta_entry)
1159 return -ENXIO;
1160 tid_data = &sta_entry->tids[tid];
1161
1162 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n",
1163 sta->addr, tid, tid_data->seq_number);
1164
1165 *ssn = tid_data->seq_number;
1166 tid_data->agg.agg_state = RTL_AGG_START;
1167
1168 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1169
1170 return 0;
1171 }
1172
1173 int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1174 struct ieee80211_sta *sta, u16 tid)
1175 {
1176 struct rtl_priv *rtlpriv = rtl_priv(hw);
1177 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1178 struct rtl_sta_info *sta_entry = NULL;
1179
1180 if (sta == NULL)
1181 return -EINVAL;
1182
1183 if (!sta->addr) {
1184 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1185 return -EINVAL;
1186 }
1187
1188 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1189 sta->addr, tid);
1190
1191 if (unlikely(tid >= MAX_TID_COUNT))
1192 return -EINVAL;
1193
1194 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1195 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1196
1197 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1198
1199 return 0;
1200 }
1201
1202 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1203 struct ieee80211_sta *sta, u16 tid)
1204 {
1205 struct rtl_priv *rtlpriv = rtl_priv(hw);
1206 struct rtl_tid_data *tid_data;
1207 struct rtl_sta_info *sta_entry = NULL;
1208
1209 if (sta == NULL)
1210 return -EINVAL;
1211
1212 if (unlikely(tid >= MAX_TID_COUNT))
1213 return -EINVAL;
1214
1215 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1216 if (!sta_entry)
1217 return -ENXIO;
1218 tid_data = &sta_entry->tids[tid];
1219
1220 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1221 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1222 tid_data->seq_number);
1223
1224 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1225 return 0;
1226 }
1227
1228 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1229 struct ieee80211_sta *sta, u16 tid)
1230 {
1231 struct rtl_priv *rtlpriv = rtl_priv(hw);
1232 struct rtl_sta_info *sta_entry = NULL;
1233
1234 if (sta == NULL)
1235 return -EINVAL;
1236
1237 if (!sta->addr) {
1238 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1239 return -EINVAL;
1240 }
1241
1242 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1243 "on ra = %pM tid = %d\n", sta->addr, tid);
1244
1245 if (unlikely(tid >= MAX_TID_COUNT))
1246 return -EINVAL;
1247
1248 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1249 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1250
1251 return 0;
1252 }
1253
1254 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1255 struct ieee80211_sta *sta, u16 tid)
1256 {
1257 struct rtl_priv *rtlpriv = rtl_priv(hw);
1258 struct rtl_sta_info *sta_entry = NULL;
1259
1260 if (sta == NULL)
1261 return -EINVAL;
1262
1263 if (!sta->addr) {
1264 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1265 return -EINVAL;
1266 }
1267
1268 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1269 sta->addr, tid);
1270
1271 if (unlikely(tid >= MAX_TID_COUNT))
1272 return -EINVAL;
1273
1274 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1275 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1276
1277 return 0;
1278 }
1279
1280 /*********************************************************
1281 *
1282 * wq & timer callback functions
1283 *
1284 *********************************************************/
1285 /* this function is used for roaming */
1286 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1287 {
1288 struct rtl_priv *rtlpriv = rtl_priv(hw);
1289 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1290
1291 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1292 return;
1293
1294 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1295 return;
1296
1297 /* check if this really is a beacon */
1298 if (!ieee80211_is_beacon(hdr->frame_control) &&
1299 !ieee80211_is_probe_resp(hdr->frame_control))
1300 return;
1301
1302 /* min. beacon length + FCS_LEN */
1303 if (skb->len <= 40 + FCS_LEN)
1304 return;
1305
1306 /* and only beacons from the associated BSSID, please */
1307 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1308 return;
1309
1310 rtlpriv->link_info.bcn_rx_inperiod++;
1311 }
1312 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1313
1314 void rtl_watchdog_wq_callback(void *data)
1315 {
1316 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1317 struct rtl_works,
1318 watchdog_wq);
1319 struct ieee80211_hw *hw = rtlworks->hw;
1320 struct rtl_priv *rtlpriv = rtl_priv(hw);
1321 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1322 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1323 bool busytraffic = false;
1324 bool tx_busy_traffic = false;
1325 bool rx_busy_traffic = false;
1326 bool higher_busytraffic = false;
1327 bool higher_busyrxtraffic = false;
1328 u8 idx, tid;
1329 u32 rx_cnt_inp4eriod = 0;
1330 u32 tx_cnt_inp4eriod = 0;
1331 u32 aver_rx_cnt_inperiod = 0;
1332 u32 aver_tx_cnt_inperiod = 0;
1333 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1334 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1335
1336 if (is_hal_stop(rtlhal))
1337 return;
1338
1339 /* <1> Determine if action frame is allowed */
1340 if (mac->link_state > MAC80211_NOLINK) {
1341 if (mac->cnt_after_linked < 20)
1342 mac->cnt_after_linked++;
1343 } else {
1344 mac->cnt_after_linked = 0;
1345 }
1346
1347 /*
1348 *<2> to check if traffic busy, if
1349 * busytraffic we don't change channel
1350 */
1351 if (mac->link_state >= MAC80211_LINKED) {
1352
1353 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1354 for (idx = 0; idx <= 2; idx++) {
1355 rtlpriv->link_info.num_rx_in4period[idx] =
1356 rtlpriv->link_info.num_rx_in4period[idx + 1];
1357 rtlpriv->link_info.num_tx_in4period[idx] =
1358 rtlpriv->link_info.num_tx_in4period[idx + 1];
1359 }
1360 rtlpriv->link_info.num_rx_in4period[3] =
1361 rtlpriv->link_info.num_rx_inperiod;
1362 rtlpriv->link_info.num_tx_in4period[3] =
1363 rtlpriv->link_info.num_tx_inperiod;
1364 for (idx = 0; idx <= 3; idx++) {
1365 rx_cnt_inp4eriod +=
1366 rtlpriv->link_info.num_rx_in4period[idx];
1367 tx_cnt_inp4eriod +=
1368 rtlpriv->link_info.num_tx_in4period[idx];
1369 }
1370 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1371 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1372
1373 /* (2) check traffic busy */
1374 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1375 busytraffic = true;
1376 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1377 rx_busy_traffic = true;
1378 else
1379 tx_busy_traffic = false;
1380 }
1381
1382 /* Higher Tx/Rx data. */
1383 if (aver_rx_cnt_inperiod > 4000 ||
1384 aver_tx_cnt_inperiod > 4000) {
1385 higher_busytraffic = true;
1386
1387 /* Extremely high Rx data. */
1388 if (aver_rx_cnt_inperiod > 5000)
1389 higher_busyrxtraffic = true;
1390 }
1391
1392 /* check every tid's tx traffic */
1393 for (tid = 0; tid <= 7; tid++) {
1394 for (idx = 0; idx <= 2; idx++)
1395 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1396 rtlpriv->link_info.tidtx_in4period[tid]
1397 [idx + 1];
1398 rtlpriv->link_info.tidtx_in4period[tid][3] =
1399 rtlpriv->link_info.tidtx_inperiod[tid];
1400
1401 for (idx = 0; idx <= 3; idx++)
1402 tidtx_inp4eriod[tid] +=
1403 rtlpriv->link_info.tidtx_in4period[tid][idx];
1404 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1405 if (aver_tidtx_inperiod[tid] > 5000)
1406 rtlpriv->link_info.higher_busytxtraffic[tid] =
1407 true;
1408 else
1409 rtlpriv->link_info.higher_busytxtraffic[tid] =
1410 false;
1411 }
1412
1413 if (((rtlpriv->link_info.num_rx_inperiod +
1414 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1415 (rtlpriv->link_info.num_rx_inperiod > 2))
1416 rtlpriv->enter_ps = true;
1417 else
1418 rtlpriv->enter_ps = false;
1419
1420 /* LeisurePS only work in infra mode. */
1421 schedule_work(&rtlpriv->works.lps_change_work);
1422 }
1423
1424 rtlpriv->link_info.num_rx_inperiod = 0;
1425 rtlpriv->link_info.num_tx_inperiod = 0;
1426 for (tid = 0; tid <= 7; tid++)
1427 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1428
1429 rtlpriv->link_info.busytraffic = busytraffic;
1430 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1431 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1432 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1433 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1434
1435 /* <3> DM */
1436 rtlpriv->cfg->ops->dm_watchdog(hw);
1437
1438 /* <4> roaming */
1439 if (mac->link_state == MAC80211_LINKED &&
1440 mac->opmode == NL80211_IFTYPE_STATION) {
1441 if ((rtlpriv->link_info.bcn_rx_inperiod +
1442 rtlpriv->link_info.num_rx_inperiod) == 0) {
1443 rtlpriv->link_info.roam_times++;
1444 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1445 "AP off for %d s\n",
1446 (rtlpriv->link_info.roam_times * 2));
1447
1448 /* if we can't recv beacon for 6s, we should
1449 * reconnect this AP
1450 */
1451 if (rtlpriv->link_info.roam_times >= 3) {
1452 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1453 "AP off, try to reconnect now\n");
1454 rtlpriv->link_info.roam_times = 0;
1455 ieee80211_connection_loss(rtlpriv->mac80211.vif);
1456 }
1457 } else {
1458 rtlpriv->link_info.roam_times = 0;
1459 }
1460 }
1461 rtlpriv->link_info.bcn_rx_inperiod = 0;
1462 }
1463
1464 void rtl_watch_dog_timer_callback(unsigned long data)
1465 {
1466 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1467 struct rtl_priv *rtlpriv = rtl_priv(hw);
1468
1469 queue_delayed_work(rtlpriv->works.rtl_wq,
1470 &rtlpriv->works.watchdog_wq, 0);
1471
1472 mod_timer(&rtlpriv->works.watchdog_timer,
1473 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1474 }
1475
1476 void rtl_fwevt_wq_callback(void *data)
1477 {
1478 struct rtl_works *rtlworks =
1479 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1480 struct ieee80211_hw *hw = rtlworks->hw;
1481 struct rtl_priv *rtlpriv = rtl_priv(hw);
1482
1483 rtlpriv->cfg->ops->c2h_command_handle(hw);
1484 }
1485
1486 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1487 {
1488 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1489 struct rtl_priv *rtlpriv = rtl_priv(hw);
1490 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1491
1492 if (buddy_priv == NULL)
1493 return;
1494
1495 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1496 }
1497
1498 /*********************************************************
1499 *
1500 * frame process functions
1501 *
1502 *********************************************************/
1503 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1504 {
1505 struct ieee80211_mgmt *mgmt = (void *)data;
1506 u8 *pos, *end;
1507
1508 pos = (u8 *)mgmt->u.beacon.variable;
1509 end = data + len;
1510 while (pos < end) {
1511 if (pos + 2 + pos[1] > end)
1512 return NULL;
1513
1514 if (pos[0] == ie)
1515 return pos;
1516
1517 pos += 2 + pos[1];
1518 }
1519 return NULL;
1520 }
1521
1522 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1523 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1524 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1525 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1526 {
1527 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1528 struct sk_buff *skb;
1529 struct ieee80211_mgmt *action_frame;
1530
1531 /* 27 = header + category + action + smps mode */
1532 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1533 if (!skb)
1534 return NULL;
1535
1536 skb_reserve(skb, hw->extra_tx_headroom);
1537 action_frame = (void *)skb_put(skb, 27);
1538 memset(action_frame, 0, 27);
1539 memcpy(action_frame->da, da, ETH_ALEN);
1540 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1541 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1542 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1543 IEEE80211_STYPE_ACTION);
1544 action_frame->u.action.category = WLAN_CATEGORY_HT;
1545 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1546 switch (smps) {
1547 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1548 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1549 WARN_ON(1);
1550 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1551 action_frame->u.action.u.ht_smps.smps_control =
1552 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1553 break;
1554 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1555 action_frame->u.action.u.ht_smps.smps_control =
1556 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1557 break;
1558 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1559 action_frame->u.action.u.ht_smps.smps_control =
1560 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1561 break;
1562 }
1563
1564 return skb;
1565 }
1566
1567 int rtl_send_smps_action(struct ieee80211_hw *hw,
1568 struct ieee80211_sta *sta,
1569 enum ieee80211_smps_mode smps)
1570 {
1571 struct rtl_priv *rtlpriv = rtl_priv(hw);
1572 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1573 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1574 struct sk_buff *skb = NULL;
1575 struct rtl_tcb_desc tcb_desc;
1576 u8 bssid[ETH_ALEN] = {0};
1577
1578 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1579
1580 if (rtlpriv->mac80211.act_scanning)
1581 goto err_free;
1582
1583 if (!sta)
1584 goto err_free;
1585
1586 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1587 goto err_free;
1588
1589 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1590 goto err_free;
1591
1592 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1593 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1594 else
1595 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1596
1597 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1598 /* this is a type = mgmt * stype = action frame */
1599 if (skb) {
1600 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1601 struct rtl_sta_info *sta_entry =
1602 (struct rtl_sta_info *) sta->drv_priv;
1603 sta_entry->mimo_ps = smps;
1604
1605 info->control.rates[0].idx = 0;
1606 info->band = hw->conf.chandef.chan->band;
1607 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1608 }
1609 return 1;
1610
1611 err_free:
1612 return 0;
1613 }
1614 EXPORT_SYMBOL(rtl_send_smps_action);
1615
1616 /* There seem to be issues in mac80211 regarding when del ba frames can be
1617 * received. As a work around, we make a fake del_ba if we receive a ba_req;
1618 * however, rx_agg was opened to let mac80211 release some ba related
1619 * resources. This del_ba is for tx only.
1620 */
1621 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1622 u8 *sa, u8 *bssid, u16 tid)
1623 {
1624 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1625 struct sk_buff *skb;
1626 struct ieee80211_mgmt *action_frame;
1627 u16 params;
1628
1629 /* 27 = header + category + action + smps mode */
1630 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1631 if (!skb)
1632 return NULL;
1633
1634 skb_reserve(skb, hw->extra_tx_headroom);
1635 action_frame = (void *)skb_put(skb, 34);
1636 memset(action_frame, 0, 34);
1637 memcpy(action_frame->sa, sa, ETH_ALEN);
1638 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1639 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1640 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1641 IEEE80211_STYPE_ACTION);
1642 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1643 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1644 params = (u16)(1 << 11); /* bit 11 initiator */
1645 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1646
1647 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1648 action_frame->u.action.u.delba.reason_code =
1649 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1650
1651 return skb;
1652 }
1653
1654 /*********************************************************
1655 *
1656 * IOT functions
1657 *
1658 *********************************************************/
1659 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1660 struct octet_string vendor_ie)
1661 {
1662 struct rtl_priv *rtlpriv = rtl_priv(hw);
1663 bool matched = false;
1664 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1665 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1666 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1667 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1668 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1669 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1670 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1671 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1672
1673 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1674 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1675 rtlpriv->mac80211.vendor = PEER_ATH;
1676 matched = true;
1677 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1678 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1679 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1680 rtlpriv->mac80211.vendor = PEER_BROAD;
1681 matched = true;
1682 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1683 rtlpriv->mac80211.vendor = PEER_RAL;
1684 matched = true;
1685 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1686 rtlpriv->mac80211.vendor = PEER_CISCO;
1687 matched = true;
1688 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1689 rtlpriv->mac80211.vendor = PEER_MARV;
1690 matched = true;
1691 }
1692
1693 return matched;
1694 }
1695
1696 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1697 unsigned int len)
1698 {
1699 struct ieee80211_mgmt *mgmt = (void *)data;
1700 struct octet_string vendor_ie;
1701 u8 *pos, *end;
1702
1703 pos = (u8 *)mgmt->u.beacon.variable;
1704 end = data + len;
1705 while (pos < end) {
1706 if (pos[0] == 221) {
1707 vendor_ie.length = pos[1];
1708 vendor_ie.octet = &pos[2];
1709 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1710 return true;
1711 }
1712
1713 if (pos + 2 + pos[1] > end)
1714 return false;
1715
1716 pos += 2 + pos[1];
1717 }
1718 return false;
1719 }
1720
1721 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1722 {
1723 struct rtl_priv *rtlpriv = rtl_priv(hw);
1724 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1725 struct ieee80211_hdr *hdr = (void *)data;
1726 u32 vendor = PEER_UNKNOWN;
1727
1728 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1729 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1730 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1731 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1732 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1733 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1734 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1735 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1736 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1737 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1738 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1739 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1740 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1741 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1742 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1743 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1744
1745 if (mac->opmode != NL80211_IFTYPE_STATION)
1746 return;
1747
1748 if (mac->link_state == MAC80211_NOLINK) {
1749 mac->vendor = PEER_UNKNOWN;
1750 return;
1751 }
1752
1753 if (mac->cnt_after_linked > 2)
1754 return;
1755
1756 /* check if this really is a beacon */
1757 if (!ieee80211_is_beacon(hdr->frame_control))
1758 return;
1759
1760 /* min. beacon length + FCS_LEN */
1761 if (len <= 40 + FCS_LEN)
1762 return;
1763
1764 /* and only beacons from the associated BSSID, please */
1765 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1766 return;
1767
1768 if (rtl_find_221_ie(hw, data, len))
1769 vendor = mac->vendor;
1770
1771 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1772 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1773 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1774 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1775 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1776 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1777 vendor == PEER_ATH) {
1778 vendor = PEER_ATH;
1779 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
1780 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1781 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1782 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1783 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1784 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1785 vendor == PEER_RAL) {
1786 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
1787 vendor = PEER_RAL;
1788 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1789 vendor == PEER_CISCO) {
1790 vendor = PEER_CISCO;
1791 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
1792 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1793 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1794 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1795 vendor == PEER_BROAD) {
1796 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
1797 vendor = PEER_BROAD;
1798 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1799 vendor == PEER_MARV) {
1800 vendor = PEER_MARV;
1801 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
1802 }
1803
1804 mac->vendor = vendor;
1805 }
1806 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
1807
1808 /*********************************************************
1809 *
1810 * sysfs functions
1811 *
1812 *********************************************************/
1813 static ssize_t rtl_show_debug_level(struct device *d,
1814 struct device_attribute *attr, char *buf)
1815 {
1816 struct ieee80211_hw *hw = dev_get_drvdata(d);
1817 struct rtl_priv *rtlpriv = rtl_priv(hw);
1818
1819 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1820 }
1821
1822 static ssize_t rtl_store_debug_level(struct device *d,
1823 struct device_attribute *attr,
1824 const char *buf, size_t count)
1825 {
1826 struct ieee80211_hw *hw = dev_get_drvdata(d);
1827 struct rtl_priv *rtlpriv = rtl_priv(hw);
1828 unsigned long val;
1829 int ret;
1830
1831 ret = kstrtoul(buf, 0, &val);
1832 if (ret) {
1833 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1834 } else {
1835 rtlpriv->dbg.global_debuglevel = val;
1836 printk(KERN_DEBUG "debuglevel:%x\n",
1837 rtlpriv->dbg.global_debuglevel);
1838 }
1839
1840 return strnlen(buf, count);
1841 }
1842
1843 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1844 rtl_show_debug_level, rtl_store_debug_level);
1845
1846 static struct attribute *rtl_sysfs_entries[] = {
1847
1848 &dev_attr_debug_level.attr,
1849
1850 NULL
1851 };
1852
1853 /*
1854 * "name" is folder name witch will be
1855 * put in device directory like :
1856 * sys/devices/pci0000:00/0000:00:1c.4/
1857 * 0000:06:00.0/rtl_sysfs
1858 */
1859 struct attribute_group rtl_attribute_group = {
1860 .name = "rtlsysfs",
1861 .attrs = rtl_sysfs_entries,
1862 };
1863 EXPORT_SYMBOL_GPL(rtl_attribute_group);
1864
1865 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1866 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1867 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1868 MODULE_LICENSE("GPL");
1869 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1870
1871 struct rtl_global_var rtl_global_var = {};
1872 EXPORT_SYMBOL_GPL(rtl_global_var);
1873
1874 static int __init rtl_core_module_init(void)
1875 {
1876 if (rtl_rate_control_register())
1877 pr_err("Unable to register rtl_rc, use default RC !!\n");
1878
1879 /* init some global vars */
1880 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
1881 spin_lock_init(&rtl_global_var.glb_list_lock);
1882
1883 return 0;
1884 }
1885
1886 static void __exit rtl_core_module_exit(void)
1887 {
1888 /*RC*/
1889 rtl_rate_control_unregister();
1890 }
1891
1892 module_init(rtl_core_module_init);
1893 module_exit(rtl_core_module_exit);
Linux kernel - Deliverables
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