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rtlwifi: Modify core.c for new drivers
[mirror_ubuntu-artful-kernel.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 #include <linux/udp.h>
41
42 /*
43 *NOTICE!!!: This file will be very big, we should
44 *keep it clear under following roles:
45 *
46 *This file include following parts, so, if you add new
47 *functions into this file, please check which part it
48 *should includes. or check if you should add new part
49 *for this file:
50 *
51 *1) mac80211 init functions
52 *2) tx information functions
53 *3) functions called by core.c
54 *4) wq & timer callback functions
55 *5) frame process functions
56 *6) IOT functions
57 *7) sysfs functions
58 *8) vif functions
59 *9) ...
60 */
61
62 /*********************************************************
63 *
64 * mac80211 init functions
65 *
66 *********************************************************/
67 static struct ieee80211_channel rtl_channeltable_2g[] = {
68 {.center_freq = 2412, .hw_value = 1,},
69 {.center_freq = 2417, .hw_value = 2,},
70 {.center_freq = 2422, .hw_value = 3,},
71 {.center_freq = 2427, .hw_value = 4,},
72 {.center_freq = 2432, .hw_value = 5,},
73 {.center_freq = 2437, .hw_value = 6,},
74 {.center_freq = 2442, .hw_value = 7,},
75 {.center_freq = 2447, .hw_value = 8,},
76 {.center_freq = 2452, .hw_value = 9,},
77 {.center_freq = 2457, .hw_value = 10,},
78 {.center_freq = 2462, .hw_value = 11,},
79 {.center_freq = 2467, .hw_value = 12,},
80 {.center_freq = 2472, .hw_value = 13,},
81 {.center_freq = 2484, .hw_value = 14,},
82 };
83
84 static struct ieee80211_channel rtl_channeltable_5g[] = {
85 {.center_freq = 5180, .hw_value = 36,},
86 {.center_freq = 5200, .hw_value = 40,},
87 {.center_freq = 5220, .hw_value = 44,},
88 {.center_freq = 5240, .hw_value = 48,},
89 {.center_freq = 5260, .hw_value = 52,},
90 {.center_freq = 5280, .hw_value = 56,},
91 {.center_freq = 5300, .hw_value = 60,},
92 {.center_freq = 5320, .hw_value = 64,},
93 {.center_freq = 5500, .hw_value = 100,},
94 {.center_freq = 5520, .hw_value = 104,},
95 {.center_freq = 5540, .hw_value = 108,},
96 {.center_freq = 5560, .hw_value = 112,},
97 {.center_freq = 5580, .hw_value = 116,},
98 {.center_freq = 5600, .hw_value = 120,},
99 {.center_freq = 5620, .hw_value = 124,},
100 {.center_freq = 5640, .hw_value = 128,},
101 {.center_freq = 5660, .hw_value = 132,},
102 {.center_freq = 5680, .hw_value = 136,},
103 {.center_freq = 5700, .hw_value = 140,},
104 {.center_freq = 5745, .hw_value = 149,},
105 {.center_freq = 5765, .hw_value = 153,},
106 {.center_freq = 5785, .hw_value = 157,},
107 {.center_freq = 5805, .hw_value = 161,},
108 {.center_freq = 5825, .hw_value = 165,},
109 };
110
111 static struct ieee80211_rate rtl_ratetable_2g[] = {
112 {.bitrate = 10, .hw_value = 0x00,},
113 {.bitrate = 20, .hw_value = 0x01,},
114 {.bitrate = 55, .hw_value = 0x02,},
115 {.bitrate = 110, .hw_value = 0x03,},
116 {.bitrate = 60, .hw_value = 0x04,},
117 {.bitrate = 90, .hw_value = 0x05,},
118 {.bitrate = 120, .hw_value = 0x06,},
119 {.bitrate = 180, .hw_value = 0x07,},
120 {.bitrate = 240, .hw_value = 0x08,},
121 {.bitrate = 360, .hw_value = 0x09,},
122 {.bitrate = 480, .hw_value = 0x0a,},
123 {.bitrate = 540, .hw_value = 0x0b,},
124 };
125
126 static struct ieee80211_rate rtl_ratetable_5g[] = {
127 {.bitrate = 60, .hw_value = 0x04,},
128 {.bitrate = 90, .hw_value = 0x05,},
129 {.bitrate = 120, .hw_value = 0x06,},
130 {.bitrate = 180, .hw_value = 0x07,},
131 {.bitrate = 240, .hw_value = 0x08,},
132 {.bitrate = 360, .hw_value = 0x09,},
133 {.bitrate = 480, .hw_value = 0x0a,},
134 {.bitrate = 540, .hw_value = 0x0b,},
135 };
136
137 static const struct ieee80211_supported_band rtl_band_2ghz = {
138 .band = IEEE80211_BAND_2GHZ,
139
140 .channels = rtl_channeltable_2g,
141 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
142
143 .bitrates = rtl_ratetable_2g,
144 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
145
146 .ht_cap = {0},
147 };
148
149 static struct ieee80211_supported_band rtl_band_5ghz = {
150 .band = IEEE80211_BAND_5GHZ,
151
152 .channels = rtl_channeltable_5g,
153 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
154
155 .bitrates = rtl_ratetable_5g,
156 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
157
158 .ht_cap = {0},
159 };
160
161 static const u8 tid_to_ac[] = {
162 2, /* IEEE80211_AC_BE */
163 3, /* IEEE80211_AC_BK */
164 3, /* IEEE80211_AC_BK */
165 2, /* IEEE80211_AC_BE */
166 1, /* IEEE80211_AC_VI */
167 1, /* IEEE80211_AC_VI */
168 0, /* IEEE80211_AC_VO */
169 0, /* IEEE80211_AC_VO */
170 };
171
172 u8 rtl_tid_to_ac(u8 tid)
173 {
174 return tid_to_ac[tid];
175 }
176 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
177
178 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
179 struct ieee80211_sta_ht_cap *ht_cap)
180 {
181 struct rtl_priv *rtlpriv = rtl_priv(hw);
182 struct rtl_phy *rtlphy = &(rtlpriv->phy);
183
184 ht_cap->ht_supported = true;
185 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
186 IEEE80211_HT_CAP_SGI_40 |
187 IEEE80211_HT_CAP_SGI_20 |
188 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
189
190 if (rtlpriv->rtlhal.disable_amsdu_8k)
191 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
192
193 /*
194 *Maximum length of AMPDU that the STA can receive.
195 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
196 */
197 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
198
199 /*Minimum MPDU start spacing , */
200 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
201
202 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
203
204 /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
205 *base on ant_num
206 *rx_mask: RX mask
207 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
208 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
209 *if rx_ant >= 3 rx_mask[2]= 0xff;
210 *if BW_40 rx_mask[4]= 0x01;
211 *highest supported RX rate
212 */
213 if (rtlpriv->dm.supp_phymode_switch) {
214
215 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
216 "Support phy mode switch\n");
217
218 ht_cap->mcs.rx_mask[0] = 0xFF;
219 ht_cap->mcs.rx_mask[1] = 0xFF;
220 ht_cap->mcs.rx_mask[4] = 0x01;
221
222 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
223 } else {
224 if (get_rf_type(rtlphy) == RF_1T2R ||
225 get_rf_type(rtlphy) == RF_2T2R) {
226 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
227 "1T2R or 2T2R\n");
228 ht_cap->mcs.rx_mask[0] = 0xFF;
229 ht_cap->mcs.rx_mask[1] = 0xFF;
230 ht_cap->mcs.rx_mask[4] = 0x01;
231
232 ht_cap->mcs.rx_highest =
233 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
234 } else if (get_rf_type(rtlphy) == RF_1T1R) {
235 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
236
237 ht_cap->mcs.rx_mask[0] = 0xFF;
238 ht_cap->mcs.rx_mask[1] = 0x00;
239 ht_cap->mcs.rx_mask[4] = 0x01;
240
241 ht_cap->mcs.rx_highest =
242 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
243 }
244 }
245 }
246
247 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
248 {
249 struct rtl_priv *rtlpriv = rtl_priv(hw);
250 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
251 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
252 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
253 struct ieee80211_supported_band *sband;
254
255
256 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
257 BAND_ON_BOTH) {
258 /* 1: 2.4 G bands */
259 /* <1> use mac->bands as mem for hw->wiphy->bands */
260 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
261
262 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
263 * to default value(1T1R) */
264 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
265 sizeof(struct ieee80211_supported_band));
266
267 /* <3> init ht cap base on ant_num */
268 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
269
270 /* <4> set mac->sband to wiphy->sband */
271 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
272
273 /* 2: 5 G bands */
274 /* <1> use mac->bands as mem for hw->wiphy->bands */
275 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
276
277 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
278 * to default value(1T1R) */
279 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
280 sizeof(struct ieee80211_supported_band));
281
282 /* <3> init ht cap base on ant_num */
283 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
284
285 /* <4> set mac->sband to wiphy->sband */
286 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
287 } else {
288 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
289 /* <1> use mac->bands as mem for hw->wiphy->bands */
290 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
291
292 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
293 * to default value(1T1R) */
294 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
295 &rtl_band_2ghz,
296 sizeof(struct ieee80211_supported_band));
297
298 /* <3> init ht cap base on ant_num */
299 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
300
301 /* <4> set mac->sband to wiphy->sband */
302 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
303 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
304 /* <1> use mac->bands as mem for hw->wiphy->bands */
305 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
306
307 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
308 * to default value(1T1R) */
309 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
310 &rtl_band_5ghz,
311 sizeof(struct ieee80211_supported_band));
312
313 /* <3> init ht cap base on ant_num */
314 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
315
316 /* <4> set mac->sband to wiphy->sband */
317 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
318 } else {
319 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
320 rtlhal->current_bandtype);
321 }
322 }
323 /* <5> set hw caps */
324 hw->flags = IEEE80211_HW_SIGNAL_DBM |
325 IEEE80211_HW_RX_INCLUDES_FCS |
326 IEEE80211_HW_AMPDU_AGGREGATION |
327 IEEE80211_HW_CONNECTION_MONITOR |
328 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
329 IEEE80211_HW_CONNECTION_MONITOR |
330 IEEE80211_HW_MFP_CAPABLE |
331 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
332
333 /* swlps or hwlps has been set in diff chip in init_sw_vars */
334 if (rtlpriv->psc.swctrl_lps)
335 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
336 IEEE80211_HW_PS_NULLFUNC_STACK |
337 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
338 0;
339
340 hw->wiphy->interface_modes =
341 BIT(NL80211_IFTYPE_AP) |
342 BIT(NL80211_IFTYPE_STATION) |
343 BIT(NL80211_IFTYPE_ADHOC) |
344 BIT(NL80211_IFTYPE_MESH_POINT) |
345 BIT(NL80211_IFTYPE_P2P_CLIENT) |
346 BIT(NL80211_IFTYPE_P2P_GO);
347
348 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
349 hw->wiphy->rts_threshold = 2347;
350
351 hw->queues = AC_MAX;
352 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
353
354 /* TODO: Correct this value for our hw */
355 /* TODO: define these hard code value */
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 ip = (const struct iphdr *)(skb->data + mac_hdr_len +
1078 SNAP_SIZE + PROTOC_TYPE_SIZE);
1079 ether_type = be16_to_cpup((__be16 *)
1080 (skb->data + mac_hdr_len + SNAP_SIZE));
1081
1082 switch (ether_type) {
1083 case ETH_P_IP: {
1084 struct udphdr *udp;
1085 u16 src;
1086 u16 dst;
1087
1088 if (ip->protocol != IPPROTO_UDP)
1089 return false;
1090 udp = (struct udphdr *)((u8 *)ip + (ip->ihl << 2));
1091 src = be16_to_cpu(udp->source);
1092 dst = be16_to_cpu(udp->dest);
1093
1094 /* If this case involves port 68 (UDP BOOTP client) connecting
1095 * with port 67 (UDP BOOTP server), then return true so that
1096 * the lowest speed is used.
1097 */
1098 if (!((src == 68 && dst == 67) || (src == 67 && dst == 68)))
1099 return false;
1100
1101 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1102 "dhcp %s !!\n", is_tx ? "Tx" : "Rx");
1103 break;
1104 }
1105 case ETH_P_ARP:
1106 break;
1107 case ETH_P_PAE:
1108 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1109 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
1110 break;
1111 case ETH_P_IPV6:
1112 /* TODO: Is this right? */
1113 return false;
1114 default:
1115 return false;
1116 }
1117 if (is_tx) {
1118 rtlpriv->enter_ps = false;
1119 schedule_work(&rtlpriv->works.lps_change_work);
1120 ppsc->last_delaylps_stamp_jiffies = jiffies;
1121 }
1122 return true;
1123 }
1124 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1125
1126 /*********************************************************
1127 *
1128 * functions called by core.c
1129 *
1130 *********************************************************/
1131 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1132 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1133 {
1134 struct rtl_priv *rtlpriv = rtl_priv(hw);
1135 struct rtl_tid_data *tid_data;
1136 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1137 struct rtl_sta_info *sta_entry = NULL;
1138
1139 if (sta == NULL)
1140 return -EINVAL;
1141
1142 if (unlikely(tid >= MAX_TID_COUNT))
1143 return -EINVAL;
1144
1145 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1146 if (!sta_entry)
1147 return -ENXIO;
1148 tid_data = &sta_entry->tids[tid];
1149
1150 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n",
1151 sta->addr, tid, tid_data->seq_number);
1152
1153 *ssn = tid_data->seq_number;
1154 tid_data->agg.agg_state = RTL_AGG_START;
1155
1156 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1157
1158 return 0;
1159 }
1160
1161 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1162 struct ieee80211_sta *sta, u16 tid)
1163 {
1164 struct rtl_priv *rtlpriv = rtl_priv(hw);
1165 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1166 struct rtl_sta_info *sta_entry = NULL;
1167
1168 if (sta == NULL)
1169 return -EINVAL;
1170
1171 if (!sta->addr) {
1172 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1173 return -EINVAL;
1174 }
1175
1176 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1177 sta->addr, tid);
1178
1179 if (unlikely(tid >= MAX_TID_COUNT))
1180 return -EINVAL;
1181
1182 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1183 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1184
1185 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1186
1187 return 0;
1188 }
1189
1190 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1191 struct ieee80211_sta *sta, u16 tid)
1192 {
1193 struct rtl_priv *rtlpriv = rtl_priv(hw);
1194 struct rtl_tid_data *tid_data;
1195 struct rtl_sta_info *sta_entry = NULL;
1196
1197 if (sta == NULL)
1198 return -EINVAL;
1199
1200 if (unlikely(tid >= MAX_TID_COUNT))
1201 return -EINVAL;
1202
1203 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1204 if (!sta_entry)
1205 return -ENXIO;
1206 tid_data = &sta_entry->tids[tid];
1207
1208 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1209 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1210 tid_data->seq_number);
1211
1212 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1213 return 0;
1214 }
1215
1216 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1217 struct ieee80211_sta *sta, u16 tid)
1218 {
1219 struct rtl_priv *rtlpriv = rtl_priv(hw);
1220 struct rtl_sta_info *sta_entry = NULL;
1221
1222 if (sta == NULL)
1223 return -EINVAL;
1224
1225 if (!sta->addr) {
1226 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1227 return -EINVAL;
1228 }
1229
1230 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1231 "on ra = %pM tid = %d\n", sta->addr, tid);
1232
1233 if (unlikely(tid >= MAX_TID_COUNT))
1234 return -EINVAL;
1235
1236 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1237 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1238
1239 return 0;
1240 }
1241
1242 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1243 struct ieee80211_sta *sta, u16 tid)
1244 {
1245 struct rtl_priv *rtlpriv = rtl_priv(hw);
1246 struct rtl_sta_info *sta_entry = NULL;
1247
1248 if (sta == NULL)
1249 return -EINVAL;
1250
1251 if (!sta->addr) {
1252 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1253 return -EINVAL;
1254 }
1255
1256 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1257 sta->addr, tid);
1258
1259 if (unlikely(tid >= MAX_TID_COUNT))
1260 return -EINVAL;
1261
1262 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1263 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1264
1265 return 0;
1266 }
1267
1268 /*********************************************************
1269 *
1270 * wq & timer callback functions
1271 *
1272 *********************************************************/
1273 /* this function is used for roaming */
1274 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1275 {
1276 struct rtl_priv *rtlpriv = rtl_priv(hw);
1277 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1278
1279 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1280 return;
1281
1282 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1283 return;
1284
1285 /* check if this really is a beacon */
1286 if (!ieee80211_is_beacon(hdr->frame_control) &&
1287 !ieee80211_is_probe_resp(hdr->frame_control))
1288 return;
1289
1290 /* min. beacon length + FCS_LEN */
1291 if (skb->len <= 40 + FCS_LEN)
1292 return;
1293
1294 /* and only beacons from the associated BSSID, please */
1295 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
1296 return;
1297
1298 rtlpriv->link_info.bcn_rx_inperiod++;
1299 }
1300 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1301
1302 void rtl_watchdog_wq_callback(void *data)
1303 {
1304 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1305 struct rtl_works,
1306 watchdog_wq);
1307 struct ieee80211_hw *hw = rtlworks->hw;
1308 struct rtl_priv *rtlpriv = rtl_priv(hw);
1309 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1310 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1311 bool busytraffic = false;
1312 bool tx_busy_traffic = false;
1313 bool rx_busy_traffic = false;
1314 bool higher_busytraffic = false;
1315 bool higher_busyrxtraffic = false;
1316 u8 idx, tid;
1317 u32 rx_cnt_inp4eriod = 0;
1318 u32 tx_cnt_inp4eriod = 0;
1319 u32 aver_rx_cnt_inperiod = 0;
1320 u32 aver_tx_cnt_inperiod = 0;
1321 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1322 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1323
1324 if (is_hal_stop(rtlhal))
1325 return;
1326
1327 /* <1> Determine if action frame is allowed */
1328 if (mac->link_state > MAC80211_NOLINK) {
1329 if (mac->cnt_after_linked < 20)
1330 mac->cnt_after_linked++;
1331 } else {
1332 mac->cnt_after_linked = 0;
1333 }
1334
1335 /*
1336 *<2> to check if traffic busy, if
1337 * busytraffic we don't change channel
1338 */
1339 if (mac->link_state >= MAC80211_LINKED) {
1340
1341 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1342 for (idx = 0; idx <= 2; idx++) {
1343 rtlpriv->link_info.num_rx_in4period[idx] =
1344 rtlpriv->link_info.num_rx_in4period[idx + 1];
1345 rtlpriv->link_info.num_tx_in4period[idx] =
1346 rtlpriv->link_info.num_tx_in4period[idx + 1];
1347 }
1348 rtlpriv->link_info.num_rx_in4period[3] =
1349 rtlpriv->link_info.num_rx_inperiod;
1350 rtlpriv->link_info.num_tx_in4period[3] =
1351 rtlpriv->link_info.num_tx_inperiod;
1352 for (idx = 0; idx <= 3; idx++) {
1353 rx_cnt_inp4eriod +=
1354 rtlpriv->link_info.num_rx_in4period[idx];
1355 tx_cnt_inp4eriod +=
1356 rtlpriv->link_info.num_tx_in4period[idx];
1357 }
1358 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1359 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1360
1361 /* (2) check traffic busy */
1362 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1363 busytraffic = true;
1364 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1365 rx_busy_traffic = true;
1366 else
1367 tx_busy_traffic = false;
1368 }
1369
1370 /* Higher Tx/Rx data. */
1371 if (aver_rx_cnt_inperiod > 4000 ||
1372 aver_tx_cnt_inperiod > 4000) {
1373 higher_busytraffic = true;
1374
1375 /* Extremely high Rx data. */
1376 if (aver_rx_cnt_inperiod > 5000)
1377 higher_busyrxtraffic = true;
1378 }
1379
1380 /* check every tid's tx traffic */
1381 for (tid = 0; tid <= 7; tid++) {
1382 for (idx = 0; idx <= 2; idx++)
1383 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1384 rtlpriv->link_info.tidtx_in4period[tid]
1385 [idx + 1];
1386 rtlpriv->link_info.tidtx_in4period[tid][3] =
1387 rtlpriv->link_info.tidtx_inperiod[tid];
1388
1389 for (idx = 0; idx <= 3; idx++)
1390 tidtx_inp4eriod[tid] +=
1391 rtlpriv->link_info.tidtx_in4period[tid][idx];
1392 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1393 if (aver_tidtx_inperiod[tid] > 5000)
1394 rtlpriv->link_info.higher_busytxtraffic[tid] =
1395 true;
1396 else
1397 rtlpriv->link_info.higher_busytxtraffic[tid] =
1398 false;
1399 }
1400
1401 if (((rtlpriv->link_info.num_rx_inperiod +
1402 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1403 (rtlpriv->link_info.num_rx_inperiod > 2))
1404 rtl_lps_enter(hw);
1405 else
1406 rtl_lps_leave(hw);
1407 }
1408
1409 rtlpriv->link_info.num_rx_inperiod = 0;
1410 rtlpriv->link_info.num_tx_inperiod = 0;
1411 for (tid = 0; tid <= 7; tid++)
1412 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1413
1414 rtlpriv->link_info.busytraffic = busytraffic;
1415 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1416 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1417 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1418 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1419
1420 /* <3> DM */
1421 rtlpriv->cfg->ops->dm_watchdog(hw);
1422
1423 /* <4> roaming */
1424 if (mac->link_state == MAC80211_LINKED &&
1425 mac->opmode == NL80211_IFTYPE_STATION) {
1426 if ((rtlpriv->link_info.bcn_rx_inperiod +
1427 rtlpriv->link_info.num_rx_inperiod) == 0) {
1428 rtlpriv->link_info.roam_times++;
1429 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1430 "AP off for %d s\n",
1431 (rtlpriv->link_info.roam_times * 2));
1432
1433 /* if we can't recv beacon for 6s, we should
1434 * reconnect this AP
1435 */
1436 if ((rtlpriv->link_info.roam_times >= 3) &&
1437 !is_zero_ether_addr(rtlpriv->mac80211.bssid)) {
1438 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1439 "AP off, try to reconnect now\n");
1440 rtlpriv->link_info.roam_times = 0;
1441 ieee80211_connection_loss(rtlpriv->mac80211.vif);
1442 }
1443 } else {
1444 rtlpriv->link_info.roam_times = 0;
1445 }
1446 }
1447 rtlpriv->link_info.bcn_rx_inperiod = 0;
1448 }
1449
1450 void rtl_watch_dog_timer_callback(unsigned long data)
1451 {
1452 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1453 struct rtl_priv *rtlpriv = rtl_priv(hw);
1454
1455 queue_delayed_work(rtlpriv->works.rtl_wq,
1456 &rtlpriv->works.watchdog_wq, 0);
1457
1458 mod_timer(&rtlpriv->works.watchdog_timer,
1459 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1460 }
1461
1462 void rtl_fwevt_wq_callback(void *data)
1463 {
1464 struct rtl_works *rtlworks =
1465 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1466 struct ieee80211_hw *hw = rtlworks->hw;
1467 struct rtl_priv *rtlpriv = rtl_priv(hw);
1468
1469 rtlpriv->cfg->ops->c2h_command_handle(hw);
1470 }
1471
1472 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1473 {
1474 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1475 struct rtl_priv *rtlpriv = rtl_priv(hw);
1476 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1477
1478 if (buddy_priv == NULL)
1479 return;
1480
1481 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1482 }
1483
1484 /*********************************************************
1485 *
1486 * frame process functions
1487 *
1488 *********************************************************/
1489 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1490 {
1491 struct ieee80211_mgmt *mgmt = (void *)data;
1492 u8 *pos, *end;
1493
1494 pos = (u8 *)mgmt->u.beacon.variable;
1495 end = data + len;
1496 while (pos < end) {
1497 if (pos + 2 + pos[1] > end)
1498 return NULL;
1499
1500 if (pos[0] == ie)
1501 return pos;
1502
1503 pos += 2 + pos[1];
1504 }
1505 return NULL;
1506 }
1507
1508 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1509 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1510 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1511 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1512 {
1513 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1514 struct sk_buff *skb;
1515 struct ieee80211_mgmt *action_frame;
1516
1517 /* 27 = header + category + action + smps mode */
1518 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1519 if (!skb)
1520 return NULL;
1521
1522 skb_reserve(skb, hw->extra_tx_headroom);
1523 action_frame = (void *)skb_put(skb, 27);
1524 memset(action_frame, 0, 27);
1525 memcpy(action_frame->da, da, ETH_ALEN);
1526 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1527 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1528 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1529 IEEE80211_STYPE_ACTION);
1530 action_frame->u.action.category = WLAN_CATEGORY_HT;
1531 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1532 switch (smps) {
1533 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1534 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1535 WARN_ON(1);
1536 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1537 action_frame->u.action.u.ht_smps.smps_control =
1538 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1539 break;
1540 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1541 action_frame->u.action.u.ht_smps.smps_control =
1542 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1543 break;
1544 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1545 action_frame->u.action.u.ht_smps.smps_control =
1546 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1547 break;
1548 }
1549
1550 return skb;
1551 }
1552
1553 int rtl_send_smps_action(struct ieee80211_hw *hw,
1554 struct ieee80211_sta *sta,
1555 enum ieee80211_smps_mode smps)
1556 {
1557 struct rtl_priv *rtlpriv = rtl_priv(hw);
1558 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1559 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1560 struct sk_buff *skb = NULL;
1561 struct rtl_tcb_desc tcb_desc;
1562 u8 bssid[ETH_ALEN] = {0};
1563
1564 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1565
1566 if (rtlpriv->mac80211.act_scanning)
1567 goto err_free;
1568
1569 if (!sta)
1570 goto err_free;
1571
1572 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1573 goto err_free;
1574
1575 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1576 goto err_free;
1577
1578 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1579 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1580 else
1581 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1582
1583 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1584 /* this is a type = mgmt * stype = action frame */
1585 if (skb) {
1586 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1587 struct rtl_sta_info *sta_entry =
1588 (struct rtl_sta_info *) sta->drv_priv;
1589 sta_entry->mimo_ps = smps;
1590
1591 info->control.rates[0].idx = 0;
1592 info->band = hw->conf.chandef.chan->band;
1593 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1594 }
1595 return 1;
1596
1597 err_free:
1598 return 0;
1599 }
1600 EXPORT_SYMBOL(rtl_send_smps_action);
1601
1602 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1603 {
1604 struct rtl_priv *rtlpriv = rtl_priv(hw);
1605 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1606 enum io_type iotype;
1607
1608 if (!is_hal_stop(rtlhal)) {
1609 switch (operation) {
1610 case SCAN_OPT_BACKUP:
1611 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1612 rtlpriv->cfg->ops->set_hw_reg(hw,
1613 HW_VAR_IO_CMD,
1614 (u8 *)&iotype);
1615 break;
1616 case SCAN_OPT_RESTORE:
1617 iotype = IO_CMD_RESUME_DM_BY_SCAN;
1618 rtlpriv->cfg->ops->set_hw_reg(hw,
1619 HW_VAR_IO_CMD,
1620 (u8 *)&iotype);
1621 break;
1622 default:
1623 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1624 "Unknown Scan Backup operation.\n");
1625 break;
1626 }
1627 }
1628 }
1629 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1630
1631 /* There seem to be issues in mac80211 regarding when del ba frames can be
1632 * received. As a work around, we make a fake del_ba if we receive a ba_req;
1633 * however, rx_agg was opened to let mac80211 release some ba related
1634 * resources. This del_ba is for tx only.
1635 */
1636 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1637 u8 *sa, u8 *bssid, u16 tid)
1638 {
1639 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1640 struct sk_buff *skb;
1641 struct ieee80211_mgmt *action_frame;
1642 u16 params;
1643
1644 /* 27 = header + category + action + smps mode */
1645 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1646 if (!skb)
1647 return NULL;
1648
1649 skb_reserve(skb, hw->extra_tx_headroom);
1650 action_frame = (void *)skb_put(skb, 34);
1651 memset(action_frame, 0, 34);
1652 memcpy(action_frame->sa, sa, ETH_ALEN);
1653 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1654 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1655 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1656 IEEE80211_STYPE_ACTION);
1657 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1658 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1659 params = (u16)(1 << 11); /* bit 11 initiator */
1660 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1661
1662 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1663 action_frame->u.action.u.delba.reason_code =
1664 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1665
1666 return skb;
1667 }
1668
1669 /*********************************************************
1670 *
1671 * IOT functions
1672 *
1673 *********************************************************/
1674 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1675 struct octet_string vendor_ie)
1676 {
1677 struct rtl_priv *rtlpriv = rtl_priv(hw);
1678 bool matched = false;
1679 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1680 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1681 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1682 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1683 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1684 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1685 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1686 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1687
1688 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1689 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1690 rtlpriv->mac80211.vendor = PEER_ATH;
1691 matched = true;
1692 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1693 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1694 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1695 rtlpriv->mac80211.vendor = PEER_BROAD;
1696 matched = true;
1697 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1698 rtlpriv->mac80211.vendor = PEER_RAL;
1699 matched = true;
1700 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1701 rtlpriv->mac80211.vendor = PEER_CISCO;
1702 matched = true;
1703 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1704 rtlpriv->mac80211.vendor = PEER_MARV;
1705 matched = true;
1706 }
1707
1708 return matched;
1709 }
1710
1711 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1712 unsigned int len)
1713 {
1714 struct ieee80211_mgmt *mgmt = (void *)data;
1715 struct octet_string vendor_ie;
1716 u8 *pos, *end;
1717
1718 pos = (u8 *)mgmt->u.beacon.variable;
1719 end = data + len;
1720 while (pos < end) {
1721 if (pos[0] == 221) {
1722 vendor_ie.length = pos[1];
1723 vendor_ie.octet = &pos[2];
1724 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1725 return true;
1726 }
1727
1728 if (pos + 2 + pos[1] > end)
1729 return false;
1730
1731 pos += 2 + pos[1];
1732 }
1733 return false;
1734 }
1735
1736 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1737 {
1738 struct rtl_priv *rtlpriv = rtl_priv(hw);
1739 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1740 struct ieee80211_hdr *hdr = (void *)data;
1741 u32 vendor = PEER_UNKNOWN;
1742
1743 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1744 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1745 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1746 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1747 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1748 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1749 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1750 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1751 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1752 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1753 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1754 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1755 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1756 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1757 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1758 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1759
1760 if (mac->opmode != NL80211_IFTYPE_STATION)
1761 return;
1762
1763 if (mac->link_state == MAC80211_NOLINK) {
1764 mac->vendor = PEER_UNKNOWN;
1765 return;
1766 }
1767
1768 if (mac->cnt_after_linked > 2)
1769 return;
1770
1771 /* check if this really is a beacon */
1772 if (!ieee80211_is_beacon(hdr->frame_control))
1773 return;
1774
1775 /* min. beacon length + FCS_LEN */
1776 if (len <= 40 + FCS_LEN)
1777 return;
1778
1779 /* and only beacons from the associated BSSID, please */
1780 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
1781 return;
1782
1783 if (rtl_find_221_ie(hw, data, len))
1784 vendor = mac->vendor;
1785
1786 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1787 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1788 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1789 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1790 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1791 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1792 vendor == PEER_ATH) {
1793 vendor = PEER_ATH;
1794 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
1795 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1796 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1797 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1798 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1799 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1800 vendor == PEER_RAL) {
1801 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
1802 vendor = PEER_RAL;
1803 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1804 vendor == PEER_CISCO) {
1805 vendor = PEER_CISCO;
1806 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
1807 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1808 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1809 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1810 vendor == PEER_BROAD) {
1811 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
1812 vendor = PEER_BROAD;
1813 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1814 vendor == PEER_MARV) {
1815 vendor = PEER_MARV;
1816 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
1817 }
1818
1819 mac->vendor = vendor;
1820 }
1821 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
1822
1823 /*********************************************************
1824 *
1825 * sysfs functions
1826 *
1827 *********************************************************/
1828 static ssize_t rtl_show_debug_level(struct device *d,
1829 struct device_attribute *attr, char *buf)
1830 {
1831 struct ieee80211_hw *hw = dev_get_drvdata(d);
1832 struct rtl_priv *rtlpriv = rtl_priv(hw);
1833
1834 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1835 }
1836
1837 static ssize_t rtl_store_debug_level(struct device *d,
1838 struct device_attribute *attr,
1839 const char *buf, size_t count)
1840 {
1841 struct ieee80211_hw *hw = dev_get_drvdata(d);
1842 struct rtl_priv *rtlpriv = rtl_priv(hw);
1843 unsigned long val;
1844 int ret;
1845
1846 ret = kstrtoul(buf, 0, &val);
1847 if (ret) {
1848 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1849 } else {
1850 rtlpriv->dbg.global_debuglevel = val;
1851 printk(KERN_DEBUG "debuglevel:%x\n",
1852 rtlpriv->dbg.global_debuglevel);
1853 }
1854
1855 return strnlen(buf, count);
1856 }
1857
1858 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1859 rtl_show_debug_level, rtl_store_debug_level);
1860
1861 static struct attribute *rtl_sysfs_entries[] = {
1862
1863 &dev_attr_debug_level.attr,
1864
1865 NULL
1866 };
1867
1868 /*
1869 * "name" is folder name witch will be
1870 * put in device directory like :
1871 * sys/devices/pci0000:00/0000:00:1c.4/
1872 * 0000:06:00.0/rtl_sysfs
1873 */
1874 struct attribute_group rtl_attribute_group = {
1875 .name = "rtlsysfs",
1876 .attrs = rtl_sysfs_entries,
1877 };
1878 EXPORT_SYMBOL_GPL(rtl_attribute_group);
1879
1880 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1881 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1882 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1883 MODULE_LICENSE("GPL");
1884 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1885
1886 struct rtl_global_var rtl_global_var = {};
1887 EXPORT_SYMBOL_GPL(rtl_global_var);
1888
1889 static int __init rtl_core_module_init(void)
1890 {
1891 if (rtl_rate_control_register())
1892 pr_err("Unable to register rtl_rc, use default RC !!\n");
1893
1894 /* init some global vars */
1895 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
1896 spin_lock_init(&rtl_global_var.glb_list_lock);
1897
1898 return 0;
1899 }
1900
1901 static void __exit rtl_core_module_exit(void)
1902 {
1903 /*RC*/
1904 rtl_rate_control_unregister();
1905 }
1906
1907 module_init(rtl_core_module_init);
1908 module_exit(rtl_core_module_exit);
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