rtlwifi: merge ips,lps spinlocks into one mutex
[linux-2.6.git] / drivers / net / wireless / rtlwifi / base.c
1 /******************************************************************************
2  *
3  * Copyright(c) 2009-2010  Realtek Corporation.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  * The full GNU General Public License is included in this distribution in the
19  * file called LICENSE.
20  *
21  * Contact Information:
22  * wlanfae <wlanfae@realtek.com>
23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24  * Hsinchu 300, Taiwan.
25  *
26  * Larry Finger <Larry.Finger@lwfinger.net>
27  *
28  *****************************************************************************/
29
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
32 #include <linux/ip.h>
33 #include <linux/module.h>
34 #include "wifi.h"
35 #include "rc.h"
36 #include "base.h"
37 #include "efuse.h"
38 #include "cam.h"
39 #include "ps.h"
40 #include "regd.h"
41
42 /*
43  *NOTICE!!!: This file will be very big, we hsould
44  *keep it clear under follwing roles:
45  *
46  *This file include follwing part, 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) ...
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(struct ieee80211_hw *hw, u8 tid)
172 {
173         return tid_to_ac[tid];
174 }
175
176 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
177                                   struct ieee80211_sta_ht_cap *ht_cap)
178 {
179         struct rtl_priv *rtlpriv = rtl_priv(hw);
180         struct rtl_phy *rtlphy = &(rtlpriv->phy);
181
182         ht_cap->ht_supported = true;
183         ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
184             IEEE80211_HT_CAP_SGI_40 |
185             IEEE80211_HT_CAP_SGI_20 |
186             IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
187
188         if (rtlpriv->rtlhal.disable_amsdu_8k)
189                 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
190
191         /*
192          *Maximum length of AMPDU that the STA can receive.
193          *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
194          */
195         ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
196
197         /*Minimum MPDU start spacing , */
198         ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
199
200         ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
201
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 (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) {
213
214                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T2R or 2T2R\n"));
215
216                 ht_cap->mcs.rx_mask[0] = 0xFF;
217                 ht_cap->mcs.rx_mask[1] = 0xFF;
218                 ht_cap->mcs.rx_mask[4] = 0x01;
219
220                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
221         } else if (get_rf_type(rtlphy) == RF_1T1R) {
222
223                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T1R\n"));
224
225                 ht_cap->mcs.rx_mask[0] = 0xFF;
226                 ht_cap->mcs.rx_mask[1] = 0x00;
227                 ht_cap->mcs.rx_mask[4] = 0x01;
228
229                 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
230         }
231 }
232
233 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
234 {
235         struct rtl_priv *rtlpriv = rtl_priv(hw);
236         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
237         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
238         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
239         struct ieee80211_supported_band *sband;
240
241
242         if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
243             BAND_ON_BOTH) {
244                 /* 1: 2.4 G bands */
245                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
246                 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
247
248                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
249                  * to default value(1T1R) */
250                 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
251                                 sizeof(struct ieee80211_supported_band));
252
253                 /* <3> init ht cap base on ant_num */
254                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
255
256                 /* <4> set mac->sband to wiphy->sband */
257                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
258
259                 /* 2: 5 G bands */
260                 /* <1> use  mac->bands as mem for hw->wiphy->bands */
261                 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
262
263                 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
264                  * to default value(1T1R) */
265                 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
266                                 sizeof(struct ieee80211_supported_band));
267
268                 /* <3> init ht cap base on ant_num */
269                 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
270
271                 /* <4> set mac->sband to wiphy->sband */
272                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
273         } else {
274                 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
275                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
276                         sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
277
278                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
279                          * to default value(1T1R) */
280                         memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
281                                  &rtl_band_2ghz,
282                                  sizeof(struct ieee80211_supported_band));
283
284                         /* <3> init ht cap base on ant_num */
285                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
286
287                         /* <4> set mac->sband to wiphy->sband */
288                         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
289                 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
290                         /* <1> use  mac->bands as mem for hw->wiphy->bands */
291                         sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
292
293                         /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
294                          * to default value(1T1R) */
295                         memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
296                                  &rtl_band_5ghz,
297                                  sizeof(struct ieee80211_supported_band));
298
299                         /* <3> init ht cap base on ant_num */
300                         _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
301
302                         /* <4> set mac->sband to wiphy->sband */
303                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
304                 } else {
305                         RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
306                                  ("Err BAND %d\n",
307                                  rtlhal->current_bandtype));
308                 }
309         }
310         /* <5> set hw caps */
311         hw->flags = IEEE80211_HW_SIGNAL_DBM |
312             IEEE80211_HW_RX_INCLUDES_FCS |
313             IEEE80211_HW_BEACON_FILTER |
314             IEEE80211_HW_AMPDU_AGGREGATION |
315             IEEE80211_HW_CONNECTION_MONITOR |
316             /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
317             IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
318
319         /* swlps or hwlps has been set in diff chip in init_sw_vars */
320         if (rtlpriv->psc.swctrl_lps)
321                 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
322                         IEEE80211_HW_PS_NULLFUNC_STACK |
323                         /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
324                         0;
325
326         hw->wiphy->interface_modes =
327             BIT(NL80211_IFTYPE_AP) |
328             BIT(NL80211_IFTYPE_STATION) |
329             BIT(NL80211_IFTYPE_ADHOC);
330
331         hw->wiphy->rts_threshold = 2347;
332
333         hw->queues = AC_MAX;
334         hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
335
336         /* TODO: Correct this value for our hw */
337         /* TODO: define these hard code value */
338         hw->channel_change_time = 100;
339         hw->max_listen_interval = 10;
340         hw->max_rate_tries = 4;
341         /* hw->max_rates = 1; */
342         hw->sta_data_size = sizeof(struct rtl_sta_info);
343
344         /* <6> mac address */
345         if (is_valid_ether_addr(rtlefuse->dev_addr)) {
346                 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
347         } else {
348                 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
349                 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
350                 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
351         }
352
353 }
354
355 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
356 {
357         struct rtl_priv *rtlpriv = rtl_priv(hw);
358
359         /* <1> timer */
360         init_timer(&rtlpriv->works.watchdog_timer);
361         setup_timer(&rtlpriv->works.watchdog_timer,
362                     rtl_watch_dog_timer_callback, (unsigned long)hw);
363
364         /* <2> work queue */
365         rtlpriv->works.hw = hw;
366         rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
367         INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
368                           (void *)rtl_watchdog_wq_callback);
369         INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
370                           (void *)rtl_ips_nic_off_wq_callback);
371         INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
372                           (void *)rtl_swlps_wq_callback);
373         INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
374                           (void *)rtl_swlps_rfon_wq_callback);
375
376 }
377
378 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
379 {
380         struct rtl_priv *rtlpriv = rtl_priv(hw);
381
382         del_timer_sync(&rtlpriv->works.watchdog_timer);
383
384         cancel_delayed_work(&rtlpriv->works.watchdog_wq);
385         cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
386         cancel_delayed_work(&rtlpriv->works.ps_work);
387         cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
388 }
389
390 void rtl_init_rfkill(struct ieee80211_hw *hw)
391 {
392         struct rtl_priv *rtlpriv = rtl_priv(hw);
393
394         bool radio_state;
395         bool blocked;
396         u8 valid = 0;
397
398         /*set init state to on */
399         rtlpriv->rfkill.rfkill_state = 1;
400         wiphy_rfkill_set_hw_state(hw->wiphy, 0);
401
402         radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
403
404         if (valid) {
405                 pr_info("wireless switch is %s\n",
406                         rtlpriv->rfkill.rfkill_state ? "on" : "off");
407
408                 rtlpriv->rfkill.rfkill_state = radio_state;
409
410                 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
411                 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
412         }
413
414         wiphy_rfkill_start_polling(hw->wiphy);
415 }
416
417 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
418 {
419         wiphy_rfkill_stop_polling(hw->wiphy);
420 }
421
422 int rtl_init_core(struct ieee80211_hw *hw)
423 {
424         struct rtl_priv *rtlpriv = rtl_priv(hw);
425         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
426
427         /* <1> init mac80211 */
428         _rtl_init_mac80211(hw);
429         rtlmac->hw = hw;
430
431         /* <2> rate control register */
432         hw->rate_control_algorithm = "rtl_rc";
433
434         /*
435          * <3> init CRDA must come after init
436          * mac80211 hw  in _rtl_init_mac80211.
437          */
438         if (rtl_regd_init(hw, rtl_reg_notifier)) {
439                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("REGD init failed\n"));
440                 return 1;
441         } else {
442                 /* CRDA regd hint must after init CRDA */
443                 if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) {
444                         RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
445                                  ("regulatory_hint fail\n"));
446                 }
447         }
448
449         /* <4> locks */
450         mutex_init(&rtlpriv->locks.conf_mutex);
451         mutex_init(&rtlpriv->locks.ps_mutex);
452         spin_lock_init(&rtlpriv->locks.irq_th_lock);
453         spin_lock_init(&rtlpriv->locks.h2c_lock);
454         spin_lock_init(&rtlpriv->locks.rf_ps_lock);
455         spin_lock_init(&rtlpriv->locks.rf_lock);
456         spin_lock_init(&rtlpriv->locks.waitq_lock);
457         spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
458
459         rtlmac->link_state = MAC80211_NOLINK;
460
461         /* <5> init deferred work */
462         _rtl_init_deferred_work(hw);
463
464         return 0;
465 }
466
467 void rtl_deinit_core(struct ieee80211_hw *hw)
468 {
469 }
470
471 void rtl_init_rx_config(struct ieee80211_hw *hw)
472 {
473         struct rtl_priv *rtlpriv = rtl_priv(hw);
474         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
475
476         rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
477 }
478
479 /*********************************************************
480  *
481  * tx information functions
482  *
483  *********************************************************/
484 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
485                                           struct rtl_tcb_desc *tcb_desc,
486                                           struct ieee80211_tx_info *info)
487 {
488         struct rtl_priv *rtlpriv = rtl_priv(hw);
489         u8 rate_flag = info->control.rates[0].flags;
490
491         tcb_desc->use_shortpreamble = false;
492
493         /* 1M can only use Long Preamble. 11B spec */
494         if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
495                 return;
496         else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
497                 tcb_desc->use_shortpreamble = true;
498
499         return;
500 }
501
502 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
503                                struct ieee80211_sta *sta,
504                                struct rtl_tcb_desc *tcb_desc,
505                                struct ieee80211_tx_info *info)
506 {
507         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
508         u8 rate_flag = info->control.rates[0].flags;
509         u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
510         tcb_desc->use_shortgi = false;
511
512         if (sta == NULL)
513                 return;
514
515         sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
516         sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
517
518         if (!(sta->ht_cap.ht_supported))
519                 return;
520
521         if (!sgi_40 && !sgi_20)
522                 return;
523
524         if (mac->opmode == NL80211_IFTYPE_STATION)
525                 bw_40 = mac->bw_40;
526         else if (mac->opmode == NL80211_IFTYPE_AP ||
527                 mac->opmode == NL80211_IFTYPE_ADHOC)
528                 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
529
530         if (bw_40 && sgi_40)
531                 tcb_desc->use_shortgi = true;
532         else if ((bw_40 == false) && sgi_20)
533                 tcb_desc->use_shortgi = true;
534
535         if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
536                 tcb_desc->use_shortgi = false;
537 }
538
539 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
540                                        struct rtl_tcb_desc *tcb_desc,
541                                        struct ieee80211_tx_info *info)
542 {
543         struct rtl_priv *rtlpriv = rtl_priv(hw);
544         u8 rate_flag = info->control.rates[0].flags;
545
546         /* Common Settings */
547         tcb_desc->rts_stbc = false;
548         tcb_desc->cts_enable = false;
549         tcb_desc->rts_sc = 0;
550         tcb_desc->rts_bw = false;
551         tcb_desc->rts_use_shortpreamble = false;
552         tcb_desc->rts_use_shortgi = false;
553
554         if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
555                 /* Use CTS-to-SELF in protection mode. */
556                 tcb_desc->rts_enable = true;
557                 tcb_desc->cts_enable = true;
558                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
559         } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
560                 /* Use RTS-CTS in protection mode. */
561                 tcb_desc->rts_enable = true;
562                 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
563         }
564 }
565
566 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
567                                    struct ieee80211_sta *sta,
568                                    struct rtl_tcb_desc *tcb_desc)
569 {
570         struct rtl_priv *rtlpriv = rtl_priv(hw);
571         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
572         struct rtl_sta_info *sta_entry = NULL;
573         u8 ratr_index = 7;
574
575         if (sta) {
576                 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
577                 ratr_index = sta_entry->ratr_index;
578         }
579         if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
580                 if (mac->opmode == NL80211_IFTYPE_STATION) {
581                         tcb_desc->ratr_index = 0;
582                 } else if (mac->opmode == NL80211_IFTYPE_ADHOC) {
583                         if (tcb_desc->multicast || tcb_desc->broadcast) {
584                                 tcb_desc->hw_rate =
585                                     rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
586                                 tcb_desc->use_driver_rate = 1;
587                         } else {
588                                 /* TODO */
589                         }
590                         tcb_desc->ratr_index = ratr_index;
591                 } else if (mac->opmode == NL80211_IFTYPE_AP) {
592                         tcb_desc->ratr_index = ratr_index;
593                 }
594         }
595
596         if (rtlpriv->dm.useramask) {
597                 /* TODO we will differentiate adhoc and station futrue  */
598                 if (mac->opmode == NL80211_IFTYPE_STATION) {
599                         tcb_desc->mac_id = 0;
600
601                         if (mac->mode == WIRELESS_MODE_N_24G)
602                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
603                         else if (mac->mode == WIRELESS_MODE_N_5G)
604                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
605                         else if (mac->mode & WIRELESS_MODE_G)
606                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
607                         else if (mac->mode & WIRELESS_MODE_B)
608                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
609                         else if (mac->mode & WIRELESS_MODE_A)
610                                 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
611                 } else if (mac->opmode == NL80211_IFTYPE_AP ||
612                         mac->opmode == NL80211_IFTYPE_ADHOC) {
613                         if (NULL != sta) {
614                                 if (sta->aid > 0)
615                                         tcb_desc->mac_id = sta->aid + 1;
616                                 else
617                                         tcb_desc->mac_id = 1;
618                         } else {
619                                 tcb_desc->mac_id = 0;
620                         }
621                 }
622         }
623
624 }
625
626 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
627                                       struct ieee80211_sta *sta,
628                                       struct rtl_tcb_desc *tcb_desc)
629 {
630         struct rtl_priv *rtlpriv = rtl_priv(hw);
631         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
632
633         tcb_desc->packet_bw = false;
634         if (!sta)
635                 return;
636         if (mac->opmode == NL80211_IFTYPE_AP ||
637             mac->opmode == NL80211_IFTYPE_ADHOC) {
638                 if (!(sta->ht_cap.ht_supported) ||
639                     !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
640                         return;
641         } else if (mac->opmode == NL80211_IFTYPE_STATION) {
642                 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
643                         return;
644         }
645         if (tcb_desc->multicast || tcb_desc->broadcast)
646                 return;
647
648         /*use legency rate, shall use 20MHz */
649         if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
650                 return;
651
652         tcb_desc->packet_bw = true;
653 }
654
655 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
656 {
657         struct rtl_priv *rtlpriv = rtl_priv(hw);
658         struct rtl_phy *rtlphy = &(rtlpriv->phy);
659         u8 hw_rate;
660
661         if (get_rf_type(rtlphy) == RF_2T2R)
662                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
663         else
664                 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
665
666         return hw_rate;
667 }
668
669 /* mac80211's rate_idx is like this:
670  *
671  * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
672  *
673  * B/G rate:
674  * (rx_status->flag & RX_FLAG_HT) = 0,
675  * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
676  *
677  * N rate:
678  * (rx_status->flag & RX_FLAG_HT) = 1,
679  * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
680  *
681  * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
682  * A rate:
683  * (rx_status->flag & RX_FLAG_HT) = 0,
684  * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
685  *
686  * N rate:
687  * (rx_status->flag & RX_FLAG_HT) = 1,
688  * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
689  */
690 int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
691                          bool isht, u8 desc_rate, bool first_ampdu)
692 {
693         int rate_idx;
694
695         if (false == isht) {
696                 if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) {
697                         switch (desc_rate) {
698                         case DESC92_RATE1M:
699                                 rate_idx = 0;
700                                 break;
701                         case DESC92_RATE2M:
702                                 rate_idx = 1;
703                                 break;
704                         case DESC92_RATE5_5M:
705                                 rate_idx = 2;
706                                 break;
707                         case DESC92_RATE11M:
708                                 rate_idx = 3;
709                                 break;
710                         case DESC92_RATE6M:
711                                 rate_idx = 4;
712                                 break;
713                         case DESC92_RATE9M:
714                                 rate_idx = 5;
715                                 break;
716                         case DESC92_RATE12M:
717                                 rate_idx = 6;
718                                 break;
719                         case DESC92_RATE18M:
720                                 rate_idx = 7;
721                                 break;
722                         case DESC92_RATE24M:
723                                 rate_idx = 8;
724                                 break;
725                         case DESC92_RATE36M:
726                                 rate_idx = 9;
727                                 break;
728                         case DESC92_RATE48M:
729                                 rate_idx = 10;
730                                 break;
731                         case DESC92_RATE54M:
732                                 rate_idx = 11;
733                                 break;
734                         default:
735                                 rate_idx = 0;
736                                 break;
737                         }
738                 } else {
739                         switch (desc_rate) {
740                         case DESC92_RATE6M:
741                                 rate_idx = 0;
742                                 break;
743                         case DESC92_RATE9M:
744                                 rate_idx = 1;
745                                 break;
746                         case DESC92_RATE12M:
747                                 rate_idx = 2;
748                                 break;
749                         case DESC92_RATE18M:
750                                 rate_idx = 3;
751                                 break;
752                         case DESC92_RATE24M:
753                                 rate_idx = 4;
754                                 break;
755                         case DESC92_RATE36M:
756                                 rate_idx = 5;
757                                 break;
758                         case DESC92_RATE48M:
759                                 rate_idx = 6;
760                                 break;
761                         case DESC92_RATE54M:
762                                 rate_idx = 7;
763                                 break;
764                         default:
765                                 rate_idx = 0;
766                                 break;
767                         }
768                 }
769
770         } else {
771
772                 switch (desc_rate) {
773                 case DESC92_RATEMCS0:
774                         rate_idx = 0;
775                         break;
776                 case DESC92_RATEMCS1:
777                         rate_idx = 1;
778                         break;
779                 case DESC92_RATEMCS2:
780                         rate_idx = 2;
781                         break;
782                 case DESC92_RATEMCS3:
783                         rate_idx = 3;
784                         break;
785                 case DESC92_RATEMCS4:
786                         rate_idx = 4;
787                         break;
788                 case DESC92_RATEMCS5:
789                         rate_idx = 5;
790                         break;
791                 case DESC92_RATEMCS6:
792                         rate_idx = 6;
793                         break;
794                 case DESC92_RATEMCS7:
795                         rate_idx = 7;
796                         break;
797                 case DESC92_RATEMCS8:
798                         rate_idx = 8;
799                         break;
800                 case DESC92_RATEMCS9:
801                         rate_idx = 9;
802                         break;
803                 case DESC92_RATEMCS10:
804                         rate_idx = 10;
805                         break;
806                 case DESC92_RATEMCS11:
807                         rate_idx = 11;
808                         break;
809                 case DESC92_RATEMCS12:
810                         rate_idx = 12;
811                         break;
812                 case DESC92_RATEMCS13:
813                         rate_idx = 13;
814                         break;
815                 case DESC92_RATEMCS14:
816                         rate_idx = 14;
817                         break;
818                 case DESC92_RATEMCS15:
819                         rate_idx = 15;
820                         break;
821                 default:
822                         rate_idx = 0;
823                         break;
824                 }
825         }
826         return rate_idx;
827 }
828 EXPORT_SYMBOL(rtlwifi_rate_mapping);
829
830 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
831                       struct ieee80211_tx_info *info,
832                       struct ieee80211_sta *sta,
833                       struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
834 {
835         struct rtl_priv *rtlpriv = rtl_priv(hw);
836         struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
837         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
838         struct ieee80211_rate *txrate;
839         __le16 fc = hdr->frame_control;
840
841         txrate = ieee80211_get_tx_rate(hw, info);
842         tcb_desc->hw_rate = txrate->hw_value;
843
844         if (ieee80211_is_data(fc)) {
845                 /*
846                  *we set data rate INX 0
847                  *in rtl_rc.c   if skb is special data or
848                  *mgt which need low data rate.
849                  */
850
851                 /*
852                  *So tcb_desc->hw_rate is just used for
853                  *special data and mgt frames
854                  */
855                 if (info->control.rates[0].idx == 0 ||
856                                 ieee80211_is_nullfunc(fc)) {
857                         tcb_desc->use_driver_rate = true;
858                         tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
859
860                         tcb_desc->disable_ratefallback = 1;
861                 } else {
862                         /*
863                          *because hw will nerver use hw_rate
864                          *when tcb_desc->use_driver_rate = false
865                          *so we never set highest N rate here,
866                          *and N rate will all be controlled by FW
867                          *when tcb_desc->use_driver_rate = false
868                          */
869                         if (sta && (sta->ht_cap.ht_supported)) {
870                                 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
871                         } else {
872                                 if (rtlmac->mode == WIRELESS_MODE_B) {
873                                         tcb_desc->hw_rate =
874                                            rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
875                                 } else {
876                                         tcb_desc->hw_rate =
877                                            rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
878                                 }
879                         }
880                 }
881
882                 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
883                         tcb_desc->multicast = 1;
884                 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
885                         tcb_desc->broadcast = 1;
886
887                 _rtl_txrate_selectmode(hw, sta, tcb_desc);
888                 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
889                 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
890                 _rtl_query_shortgi(hw, sta, tcb_desc, info);
891                 _rtl_query_protection_mode(hw, tcb_desc, info);
892         } else {
893                 tcb_desc->use_driver_rate = true;
894                 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
895                 tcb_desc->disable_ratefallback = 1;
896                 tcb_desc->mac_id = 0;
897                 tcb_desc->packet_bw = false;
898         }
899 }
900 EXPORT_SYMBOL(rtl_get_tcb_desc);
901
902 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
903 {
904         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
905         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
906         struct rtl_priv *rtlpriv = rtl_priv(hw);
907         __le16 fc = hdr->frame_control;
908         u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
909         u8 category;
910
911         if (!ieee80211_is_action(fc))
912                 return true;
913
914         category = *act;
915         act++;
916         switch (category) {
917         case ACT_CAT_BA:
918                 switch (*act) {
919                 case ACT_ADDBAREQ:
920                         if (mac->act_scanning)
921                                 return false;
922
923                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
924                                  ("%s ACT_ADDBAREQ From :%pM\n",
925                                   is_tx ? "Tx" : "Rx", hdr->addr2));
926                         break;
927                 case ACT_ADDBARSP:
928                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
929                                  ("%s ACT_ADDBARSP From :%pM\n",
930                                   is_tx ? "Tx" : "Rx", hdr->addr2));
931                         break;
932                 case ACT_DELBA:
933                         RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
934                                  ("ACT_ADDBADEL From :%pM\n", hdr->addr2));
935                         break;
936                 }
937                 break;
938         default:
939                 break;
940         }
941
942         return true;
943 }
944
945 /*should call before software enc*/
946 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
947 {
948         struct rtl_priv *rtlpriv = rtl_priv(hw);
949         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
950         __le16 fc = rtl_get_fc(skb);
951         u16 ether_type;
952         u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
953         const struct iphdr *ip;
954
955         if (!ieee80211_is_data(fc))
956                 return false;
957
958
959         ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
960                               SNAP_SIZE + PROTOC_TYPE_SIZE);
961         ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
962         /*      ether_type = ntohs(ether_type); */
963
964         if (ETH_P_IP == ether_type) {
965                 if (IPPROTO_UDP == ip->protocol) {
966                         struct udphdr *udp = (struct udphdr *)((u8 *) ip +
967                                                                (ip->ihl << 2));
968                         if (((((u8 *) udp)[1] == 68) &&
969                              (((u8 *) udp)[3] == 67)) ||
970                             ((((u8 *) udp)[1] == 67) &&
971                              (((u8 *) udp)[3] == 68))) {
972                                 /*
973                                  * 68 : UDP BOOTP client
974                                  * 67 : UDP BOOTP server
975                                  */
976                                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
977                                          DBG_DMESG, ("dhcp %s !!\n",
978                                                      (is_tx) ? "Tx" : "Rx"));
979
980                                 if (is_tx) {
981                                         rtl_lps_leave(hw);
982                                         ppsc->last_delaylps_stamp_jiffies =
983                                             jiffies;
984                                 }
985
986                                 return true;
987                         }
988                 }
989         } else if (ETH_P_ARP == ether_type) {
990                 if (is_tx) {
991                         rtl_lps_leave(hw);
992                         ppsc->last_delaylps_stamp_jiffies = jiffies;
993                 }
994
995                 return true;
996         } else if (ETH_P_PAE == ether_type) {
997                 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
998                          ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));
999
1000                 if (is_tx) {
1001                         rtl_lps_leave(hw);
1002                         ppsc->last_delaylps_stamp_jiffies = jiffies;
1003                 }
1004
1005                 return true;
1006         } else if (ETH_P_IPV6 == ether_type) {
1007                 /* IPv6 */
1008                 return true;
1009         }
1010
1011         return false;
1012 }
1013
1014 /*********************************************************
1015  *
1016  * functions called by core.c
1017  *
1018  *********************************************************/
1019 int rtl_tx_agg_start(struct ieee80211_hw *hw,
1020                 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1021 {
1022         struct rtl_priv *rtlpriv = rtl_priv(hw);
1023         struct rtl_tid_data *tid_data;
1024         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1025         struct rtl_sta_info *sta_entry = NULL;
1026
1027         if (sta == NULL)
1028                 return -EINVAL;
1029
1030         if (unlikely(tid >= MAX_TID_COUNT))
1031                 return -EINVAL;
1032
1033         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1034         if (!sta_entry)
1035                 return -ENXIO;
1036         tid_data = &sta_entry->tids[tid];
1037
1038         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1039                  ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1040                  tid_data->seq_number));
1041
1042         *ssn = tid_data->seq_number;
1043         tid_data->agg.agg_state = RTL_AGG_START;
1044
1045         ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1046
1047         return 0;
1048 }
1049
1050 int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1051                 struct ieee80211_sta *sta, u16 tid)
1052 {
1053         struct rtl_priv *rtlpriv = rtl_priv(hw);
1054         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1055         struct rtl_sta_info *sta_entry = NULL;
1056
1057         if (sta == NULL)
1058                 return -EINVAL;
1059
1060         if (!sta->addr) {
1061                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1062                 return -EINVAL;
1063         }
1064
1065         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1066                  ("on ra = %pM tid = %d\n", sta->addr, tid));
1067
1068         if (unlikely(tid >= MAX_TID_COUNT))
1069                 return -EINVAL;
1070
1071         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1072         sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1073
1074         ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1075
1076         return 0;
1077 }
1078
1079 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1080                 struct ieee80211_sta *sta, u16 tid)
1081 {
1082         struct rtl_priv *rtlpriv = rtl_priv(hw);
1083         struct rtl_sta_info *sta_entry = NULL;
1084
1085         if (sta == NULL)
1086                 return -EINVAL;
1087
1088         if (!sta->addr) {
1089                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1090                 return -EINVAL;
1091         }
1092
1093         RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1094                  ("on ra = %pM tid = %d\n", sta->addr, tid));
1095
1096         if (unlikely(tid >= MAX_TID_COUNT))
1097                 return -EINVAL;
1098
1099         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1100         sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1101
1102         return 0;
1103 }
1104
1105 /*********************************************************
1106  *
1107  * wq & timer callback functions
1108  *
1109  *********************************************************/
1110 void rtl_watchdog_wq_callback(void *data)
1111 {
1112         struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1113                                                             struct rtl_works,
1114                                                             watchdog_wq);
1115         struct ieee80211_hw *hw = rtlworks->hw;
1116         struct rtl_priv *rtlpriv = rtl_priv(hw);
1117         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1118         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1119         bool busytraffic = false;
1120         bool higher_busytraffic = false;
1121         bool higher_busyrxtraffic = false;
1122         u8 idx, tid;
1123         u32 rx_cnt_inp4eriod = 0;
1124         u32 tx_cnt_inp4eriod = 0;
1125         u32 aver_rx_cnt_inperiod = 0;
1126         u32 aver_tx_cnt_inperiod = 0;
1127         u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1128         u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1129         bool enter_ps = false;
1130
1131         if (is_hal_stop(rtlhal))
1132                 return;
1133
1134         /* <1> Determine if action frame is allowed */
1135         if (mac->link_state > MAC80211_NOLINK) {
1136                 if (mac->cnt_after_linked < 20)
1137                         mac->cnt_after_linked++;
1138         } else {
1139                 mac->cnt_after_linked = 0;
1140         }
1141
1142         /*
1143          *<2> to check if traffic busy, if
1144          * busytraffic we don't change channel
1145          */
1146         if (mac->link_state >= MAC80211_LINKED) {
1147
1148                 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1149                 for (idx = 0; idx <= 2; idx++) {
1150                         rtlpriv->link_info.num_rx_in4period[idx] =
1151                             rtlpriv->link_info.num_rx_in4period[idx + 1];
1152                         rtlpriv->link_info.num_tx_in4period[idx] =
1153                             rtlpriv->link_info.num_tx_in4period[idx + 1];
1154                 }
1155                 rtlpriv->link_info.num_rx_in4period[3] =
1156                     rtlpriv->link_info.num_rx_inperiod;
1157                 rtlpriv->link_info.num_tx_in4period[3] =
1158                     rtlpriv->link_info.num_tx_inperiod;
1159                 for (idx = 0; idx <= 3; idx++) {
1160                         rx_cnt_inp4eriod +=
1161                             rtlpriv->link_info.num_rx_in4period[idx];
1162                         tx_cnt_inp4eriod +=
1163                             rtlpriv->link_info.num_tx_in4period[idx];
1164                 }
1165                 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1166                 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1167
1168                 /* (2) check traffic busy */
1169                 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
1170                         busytraffic = true;
1171
1172                 /* Higher Tx/Rx data. */
1173                 if (aver_rx_cnt_inperiod > 4000 ||
1174                     aver_tx_cnt_inperiod > 4000) {
1175                         higher_busytraffic = true;
1176
1177                         /* Extremely high Rx data. */
1178                         if (aver_rx_cnt_inperiod > 5000)
1179                                 higher_busyrxtraffic = true;
1180                 }
1181
1182                 /* check every tid's tx traffic */
1183                 for (tid = 0; tid <= 7; tid++) {
1184                         for (idx = 0; idx <= 2; idx++)
1185                                 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1186                                   rtlpriv->link_info.tidtx_in4period[tid]
1187                                   [idx + 1];
1188                         rtlpriv->link_info.tidtx_in4period[tid][3] =
1189                                 rtlpriv->link_info.tidtx_inperiod[tid];
1190
1191                         for (idx = 0; idx <= 3; idx++)
1192                                 tidtx_inp4eriod[tid] +=
1193                                   rtlpriv->link_info.tidtx_in4period[tid][idx];
1194                         aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1195                         if (aver_tidtx_inperiod[tid] > 5000)
1196                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1197                                                    true;
1198                         else
1199                                 rtlpriv->link_info.higher_busytxtraffic[tid] =
1200                                                    false;
1201                 }
1202
1203                 if (((rtlpriv->link_info.num_rx_inperiod +
1204                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
1205                     (rtlpriv->link_info.num_rx_inperiod > 2))
1206                         enter_ps = false;
1207                 else
1208                         enter_ps = true;
1209
1210                 /* LeisurePS only work in infra mode. */
1211                 if (enter_ps)
1212                         rtl_lps_enter(hw);
1213                 else
1214                         rtl_lps_leave(hw);
1215         }
1216
1217         rtlpriv->link_info.num_rx_inperiod = 0;
1218         rtlpriv->link_info.num_tx_inperiod = 0;
1219         for (tid = 0; tid <= 7; tid++)
1220                 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1221
1222         rtlpriv->link_info.busytraffic = busytraffic;
1223         rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1224         rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1225
1226         /* <3> DM */
1227         rtlpriv->cfg->ops->dm_watchdog(hw);
1228 }
1229
1230 void rtl_watch_dog_timer_callback(unsigned long data)
1231 {
1232         struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1233         struct rtl_priv *rtlpriv = rtl_priv(hw);
1234
1235         queue_delayed_work(rtlpriv->works.rtl_wq,
1236                            &rtlpriv->works.watchdog_wq, 0);
1237
1238         mod_timer(&rtlpriv->works.watchdog_timer,
1239                   jiffies + MSECS(RTL_WATCH_DOG_TIME));
1240 }
1241
1242 /*********************************************************
1243  *
1244  * frame process functions
1245  *
1246  *********************************************************/
1247 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1248 {
1249         struct ieee80211_mgmt *mgmt = (void *)data;
1250         u8 *pos, *end;
1251
1252         pos = (u8 *)mgmt->u.beacon.variable;
1253         end = data + len;
1254         while (pos < end) {
1255                 if (pos + 2 + pos[1] > end)
1256                         return NULL;
1257
1258                 if (pos[0] == ie)
1259                         return pos;
1260
1261                 pos += 2 + pos[1];
1262         }
1263         return NULL;
1264 }
1265
1266 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1267 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1268 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1269                 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1270 {
1271         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1272         struct sk_buff *skb;
1273         struct ieee80211_mgmt *action_frame;
1274
1275         /* 27 = header + category + action + smps mode */
1276         skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1277         if (!skb)
1278                 return NULL;
1279
1280         skb_reserve(skb, hw->extra_tx_headroom);
1281         action_frame = (void *)skb_put(skb, 27);
1282         memset(action_frame, 0, 27);
1283         memcpy(action_frame->da, da, ETH_ALEN);
1284         memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1285         memcpy(action_frame->bssid, bssid, ETH_ALEN);
1286         action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1287                                                   IEEE80211_STYPE_ACTION);
1288         action_frame->u.action.category = WLAN_CATEGORY_HT;
1289         action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1290         switch (smps) {
1291         case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1292         case IEEE80211_SMPS_NUM_MODES:/* 4 */
1293                 WARN_ON(1);
1294         case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1295                 action_frame->u.action.u.ht_smps.smps_control =
1296                                 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1297                 break;
1298         case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1299                 action_frame->u.action.u.ht_smps.smps_control =
1300                                 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1301                 break;
1302         case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1303                 action_frame->u.action.u.ht_smps.smps_control =
1304                                 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1305                 break;
1306         }
1307
1308         return skb;
1309 }
1310
1311 int rtl_send_smps_action(struct ieee80211_hw *hw,
1312                 struct ieee80211_sta *sta, u8 *da, u8 *bssid,
1313                 enum ieee80211_smps_mode smps)
1314 {
1315         struct rtl_priv *rtlpriv = rtl_priv(hw);
1316         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1317         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1318         struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
1319         struct rtl_tcb_desc tcb_desc;
1320         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1321
1322         if (rtlpriv->mac80211.act_scanning)
1323                 goto err_free;
1324
1325         if (!sta)
1326                 goto err_free;
1327
1328         if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1329                 goto err_free;
1330
1331         if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1332                 goto err_free;
1333
1334         /* this is a type = mgmt * stype = action frame */
1335         if (skb) {
1336                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1337                 struct rtl_sta_info *sta_entry =
1338                         (struct rtl_sta_info *) sta->drv_priv;
1339                 sta_entry->mimo_ps = smps;
1340                 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
1341
1342                 info->control.rates[0].idx = 0;
1343                 info->control.sta = sta;
1344                 info->band = hw->conf.channel->band;
1345                 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
1346         }
1347 err_free:
1348         return 0;
1349 }
1350
1351 /*********************************************************
1352  *
1353  * IOT functions
1354  *
1355  *********************************************************/
1356 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1357                 struct octet_string vendor_ie)
1358 {
1359         struct rtl_priv *rtlpriv = rtl_priv(hw);
1360         bool matched = false;
1361         static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1362         static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1363         static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1364         static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1365         static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1366         static u8 racap[] = { 0x00, 0x0c, 0x43 };
1367         static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1368         static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1369
1370         if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1371                 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1372                 rtlpriv->mac80211.vendor = PEER_ATH;
1373                 matched = true;
1374         } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1375                 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1376                 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1377                 rtlpriv->mac80211.vendor = PEER_BROAD;
1378                 matched = true;
1379         } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1380                 rtlpriv->mac80211.vendor = PEER_RAL;
1381                 matched = true;
1382         } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1383                 rtlpriv->mac80211.vendor = PEER_CISCO;
1384                 matched = true;
1385         } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1386                 rtlpriv->mac80211.vendor = PEER_MARV;
1387                 matched = true;
1388         }
1389
1390         return matched;
1391 }
1392
1393 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1394                 unsigned int len)
1395 {
1396         struct ieee80211_mgmt *mgmt = (void *)data;
1397         struct octet_string vendor_ie;
1398         u8 *pos, *end;
1399
1400         pos = (u8 *)mgmt->u.beacon.variable;
1401         end = data + len;
1402         while (pos < end) {
1403                 if (pos[0] == 221) {
1404                         vendor_ie.length = pos[1];
1405                         vendor_ie.octet = &pos[2];
1406                         if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1407                                 return true;
1408                 }
1409
1410                 if (pos + 2 + pos[1] > end)
1411                         return false;
1412
1413                 pos += 2 + pos[1];
1414         }
1415         return false;
1416 }
1417
1418 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1419 {
1420         struct rtl_priv *rtlpriv = rtl_priv(hw);
1421         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1422         struct ieee80211_hdr *hdr = (void *)data;
1423         u32 vendor = PEER_UNKNOWN;
1424
1425         static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1426         static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1427         static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1428         static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1429         static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1430         static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1431         static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1432         static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1433         static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1434         static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1435         static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1436         static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1437         static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1438         static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1439         static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1440         static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1441
1442         if (mac->opmode != NL80211_IFTYPE_STATION)
1443                 return;
1444
1445         if (mac->link_state == MAC80211_NOLINK) {
1446                 mac->vendor = PEER_UNKNOWN;
1447                 return;
1448         }
1449
1450         if (mac->cnt_after_linked > 2)
1451                 return;
1452
1453         /* check if this really is a beacon */
1454         if (!ieee80211_is_beacon(hdr->frame_control))
1455                 return;
1456
1457         /* min. beacon length + FCS_LEN */
1458         if (len <= 40 + FCS_LEN)
1459                 return;
1460
1461         /* and only beacons from the associated BSSID, please */
1462         if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
1463                 return;
1464
1465         if (rtl_find_221_ie(hw, data, len))
1466                 vendor = mac->vendor;
1467
1468         if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1469                 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1470                 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1471                 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1472                 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1473                 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1474                 vendor == PEER_ATH) {
1475                 vendor = PEER_ATH;
1476                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
1477         } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1478                 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1479                 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1480                 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1481                 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1482                 vendor == PEER_RAL) {
1483                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ral findn\n"));
1484                 vendor = PEER_RAL;
1485         } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1486                 vendor == PEER_CISCO) {
1487                 vendor = PEER_CISCO;
1488                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
1489         } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1490                 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1491                 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1492                 vendor == PEER_BROAD) {
1493                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
1494                 vendor = PEER_BROAD;
1495         } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1496                 vendor == PEER_MARV) {
1497                 vendor = PEER_MARV;
1498                 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
1499         }
1500
1501         mac->vendor = vendor;
1502 }
1503
1504 /*********************************************************
1505  *
1506  * sysfs functions
1507  *
1508  *********************************************************/
1509 static ssize_t rtl_show_debug_level(struct device *d,
1510                                     struct device_attribute *attr, char *buf)
1511 {
1512         struct ieee80211_hw *hw = dev_get_drvdata(d);
1513         struct rtl_priv *rtlpriv = rtl_priv(hw);
1514
1515         return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1516 }
1517
1518 static ssize_t rtl_store_debug_level(struct device *d,
1519                                      struct device_attribute *attr,
1520                                      const char *buf, size_t count)
1521 {
1522         struct ieee80211_hw *hw = dev_get_drvdata(d);
1523         struct rtl_priv *rtlpriv = rtl_priv(hw);
1524         unsigned long val;
1525         int ret;
1526
1527         ret = strict_strtoul(buf, 0, &val);
1528         if (ret) {
1529                 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1530         } else {
1531                 rtlpriv->dbg.global_debuglevel = val;
1532                 printk(KERN_DEBUG "debuglevel:%x\n",
1533                        rtlpriv->dbg.global_debuglevel);
1534         }
1535
1536         return strnlen(buf, count);
1537 }
1538
1539 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1540                    rtl_show_debug_level, rtl_store_debug_level);
1541
1542 static struct attribute *rtl_sysfs_entries[] = {
1543
1544         &dev_attr_debug_level.attr,
1545
1546         NULL
1547 };
1548
1549 /*
1550  * "name" is folder name witch will be
1551  * put in device directory like :
1552  * sys/devices/pci0000:00/0000:00:1c.4/
1553  * 0000:06:00.0/rtl_sysfs
1554  */
1555 struct attribute_group rtl_attribute_group = {
1556         .name = "rtlsysfs",
1557         .attrs = rtl_sysfs_entries,
1558 };
1559
1560 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
1561 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
1562 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
1563 MODULE_LICENSE("GPL");
1564 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1565
1566 static int __init rtl_core_module_init(void)
1567 {
1568         if (rtl_rate_control_register())
1569                 pr_err("Unable to register rtl_rc, use default RC !!\n");
1570
1571         return 0;
1572 }
1573
1574 static void __exit rtl_core_module_exit(void)
1575 {
1576         /*RC*/
1577         rtl_rate_control_unregister();
1578 }
1579
1580 module_init(rtl_core_module_init);
1581 module_exit(rtl_core_module_exit);