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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[deliverable/linux.git] / drivers / staging / rtl8821ae / 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 #include <linux/ip.h>
31 #include <linux/module.h>
32 #include "wifi.h"
33 #include "rc.h"
34 #include "base.h"
35 #include "efuse.h"
36 #include "cam.h"
37 #include "ps.h"
38 #include "regd.h"
39 #include "pci.h"
40
41 /*
42 *NOTICE!!!: This file will be very big, we should
43 *keep it clear under following roles:
44 *
45 *This file include following part, so, if you add new
46 *functions into this file, please check which part it
47 *should includes. or check if you should add new part
48 *for this file:
49 *
50 *1) mac80211 init functions
51 *2) tx information functions
52 *3) functions called by core.c
53 *4) wq & timer callback functions
54 *5) frame process functions
55 *6) IOT functions
56 *7) sysfs functions
57 *8) vif functions
58 *9) ...
59 */
60
61 /*********************************************************
62 *
63 * mac80211 init functions
64 *
65 *********************************************************/
66 static struct ieee80211_channel rtl_channeltable_2g[] = {
67 {.center_freq = 2412, .hw_value = 1,},
68 {.center_freq = 2417, .hw_value = 2,},
69 {.center_freq = 2422, .hw_value = 3,},
70 {.center_freq = 2427, .hw_value = 4,},
71 {.center_freq = 2432, .hw_value = 5,},
72 {.center_freq = 2437, .hw_value = 6,},
73 {.center_freq = 2442, .hw_value = 7,},
74 {.center_freq = 2447, .hw_value = 8,},
75 {.center_freq = 2452, .hw_value = 9,},
76 {.center_freq = 2457, .hw_value = 10,},
77 {.center_freq = 2462, .hw_value = 11,},
78 {.center_freq = 2467, .hw_value = 12,},
79 {.center_freq = 2472, .hw_value = 13,},
80 {.center_freq = 2484, .hw_value = 14,},
81 };
82
83 static struct ieee80211_channel rtl_channeltable_5g[] = {
84 {.center_freq = 5180, .hw_value = 36,},
85 {.center_freq = 5200, .hw_value = 40,},
86 {.center_freq = 5220, .hw_value = 44,},
87 {.center_freq = 5240, .hw_value = 48,},
88 {.center_freq = 5260, .hw_value = 52,},
89 {.center_freq = 5280, .hw_value = 56,},
90 {.center_freq = 5300, .hw_value = 60,},
91 {.center_freq = 5320, .hw_value = 64,},
92 {.center_freq = 5500, .hw_value = 100,},
93 {.center_freq = 5520, .hw_value = 104,},
94 {.center_freq = 5540, .hw_value = 108,},
95 {.center_freq = 5560, .hw_value = 112,},
96 {.center_freq = 5580, .hw_value = 116,},
97 {.center_freq = 5600, .hw_value = 120,},
98 {.center_freq = 5620, .hw_value = 124,},
99 {.center_freq = 5640, .hw_value = 128,},
100 {.center_freq = 5660, .hw_value = 132,},
101 {.center_freq = 5680, .hw_value = 136,},
102 {.center_freq = 5700, .hw_value = 140,},
103 {.center_freq = 5745, .hw_value = 149,},
104 {.center_freq = 5765, .hw_value = 153,},
105 {.center_freq = 5785, .hw_value = 157,},
106 {.center_freq = 5805, .hw_value = 161,},
107 {.center_freq = 5825, .hw_value = 165,},
108 };
109
110 static struct ieee80211_rate rtl_ratetable_2g[] = {
111 {.bitrate = 10, .hw_value = 0x00,},
112 {.bitrate = 20, .hw_value = 0x01,},
113 {.bitrate = 55, .hw_value = 0x02,},
114 {.bitrate = 110, .hw_value = 0x03,},
115 {.bitrate = 60, .hw_value = 0x04,},
116 {.bitrate = 90, .hw_value = 0x05,},
117 {.bitrate = 120, .hw_value = 0x06,},
118 {.bitrate = 180, .hw_value = 0x07,},
119 {.bitrate = 240, .hw_value = 0x08,},
120 {.bitrate = 360, .hw_value = 0x09,},
121 {.bitrate = 480, .hw_value = 0x0a,},
122 {.bitrate = 540, .hw_value = 0x0b,},
123 };
124
125 static struct ieee80211_rate rtl_ratetable_5g[] = {
126 {.bitrate = 60, .hw_value = 0x04,},
127 {.bitrate = 90, .hw_value = 0x05,},
128 {.bitrate = 120, .hw_value = 0x06,},
129 {.bitrate = 180, .hw_value = 0x07,},
130 {.bitrate = 240, .hw_value = 0x08,},
131 {.bitrate = 360, .hw_value = 0x09,},
132 {.bitrate = 480, .hw_value = 0x0a,},
133 {.bitrate = 540, .hw_value = 0x0b,},
134 };
135
136 static const struct ieee80211_supported_band rtl_band_2ghz = {
137 .band = IEEE80211_BAND_2GHZ,
138
139 .channels = rtl_channeltable_2g,
140 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
141
142 .bitrates = rtl_ratetable_2g,
143 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
144
145 .ht_cap = {0},
146 };
147
148 static struct ieee80211_supported_band rtl_band_5ghz = {
149 .band = IEEE80211_BAND_5GHZ,
150
151 .channels = rtl_channeltable_5g,
152 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
153
154 .bitrates = rtl_ratetable_5g,
155 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
156
157 .ht_cap = {0},
158 };
159
160 static const u8 tid_to_ac[] = {
161 2, /* IEEE80211_AC_BE */
162 3, /* IEEE80211_AC_BK */
163 3, /* IEEE80211_AC_BK */
164 2, /* IEEE80211_AC_BE */
165 1, /* IEEE80211_AC_VI */
166 1, /* IEEE80211_AC_VI */
167 0, /* IEEE80211_AC_VO */
168 0, /* IEEE80211_AC_VO */
169 };
170
171 u8 rtl_tid_to_ac(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 (rtlpriv->dm.supp_phymode_switch) {
213 RT_TRACE(COMP_INIT, DBG_EMERG, ("Support phy mode switch\n"));
214
215 ht_cap->mcs.rx_mask[0] = 0xFF;
216 ht_cap->mcs.rx_mask[1] = 0xFF;
217 ht_cap->mcs.rx_mask[4] = 0x01;
218
219 ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS15;
220 } else {
221 if (get_rf_type(rtlphy) == RF_1T2R ||
222 get_rf_type(rtlphy) == RF_2T2R) {
223
224 RT_TRACE(COMP_INIT, DBG_DMESG, ("1T2R or 2T2R\n"));
225
226 ht_cap->mcs.rx_mask[0] = 0xFF;
227 ht_cap->mcs.rx_mask[1] = 0xFF;
228 ht_cap->mcs.rx_mask[4] = 0x01;
229
230 ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS15;
231 } else if (get_rf_type(rtlphy) == RF_1T1R) {
232
233 RT_TRACE(COMP_INIT, DBG_DMESG, ("1T1R\n"));
234
235 ht_cap->mcs.rx_mask[0] = 0xFF;
236 ht_cap->mcs.rx_mask[1] = 0x00;
237 ht_cap->mcs.rx_mask[4] = 0x01;
238
239 ht_cap->mcs.rx_highest = MAX_BIT_RATE_40MHZ_MCS7;
240 }
241 }
242 }
243
244 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
245 {
246 struct rtl_priv *rtlpriv = rtl_priv(hw);
247 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
248 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
249 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
250 struct ieee80211_supported_band *sband;
251
252
253 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
254 rtlhal->bandset == BAND_ON_BOTH) {
255 /* 1: 2.4 G bands */
256 /* <1> use mac->bands as mem for hw->wiphy->bands */
257 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
258
259 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
260 * to default value(1T1R) */
261 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
262 sizeof(struct ieee80211_supported_band));
263
264 /* <3> init ht cap base on ant_num */
265 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
266
267 /* <4> set mac->sband to wiphy->sband */
268 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
269
270 /* 2: 5 G bands */
271 /* <1> use mac->bands as mem for hw->wiphy->bands */
272 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
273
274 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
275 * to default value(1T1R) */
276 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
277 sizeof(struct ieee80211_supported_band));
278
279 /* <3> init ht cap base on ant_num */
280 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
281
282 /* <4> set mac->sband to wiphy->sband */
283 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
284 } else {
285 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
286 /* <1> use mac->bands as mem for hw->wiphy->bands */
287 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
288
289 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
290 * to default value(1T1R) */
291 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
292 &rtl_band_2ghz,
293 sizeof(struct ieee80211_supported_band));
294
295 /* <3> init ht cap base on ant_num */
296 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
297
298 /* <4> set mac->sband to wiphy->sband */
299 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
300 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
301 /* <1> use mac->bands as mem for hw->wiphy->bands */
302 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
303
304 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
305 * to default value(1T1R) */
306 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
307 &rtl_band_5ghz,
308 sizeof(struct ieee80211_supported_band));
309
310 /* <3> init ht cap base on ant_num */
311 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
312
313 /* <4> set mac->sband to wiphy->sband */
314 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
315 } else {
316 RT_TRACE(COMP_INIT, DBG_EMERG, ("Err BAND %d\n",
317 rtlhal->current_bandtype));
318 }
319 }
320 /* <5> set hw caps */
321 hw->flags = IEEE80211_HW_SIGNAL_DBM |
322 IEEE80211_HW_RX_INCLUDES_FCS |
323 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
324 IEEE80211_HW_BEACON_FILTER |
325 #endif
326 IEEE80211_HW_AMPDU_AGGREGATION |
327 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
328 IEEE80211_HW_CONNECTION_MONITOR |
329 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
330 IEEE80211_HW_MFP_CAPABLE | 0;
331
332 /* swlps or hwlps has been set in diff chip in init_sw_vars */
333 if (rtlpriv->psc.b_swctrl_lps)
334 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
335 IEEE80211_HW_PS_NULLFUNC_STACK |
336 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
337 0;
338 /*<delete in kernel start>*/
339 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
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 #else
348 /*<delete in kernel end>*/
349 hw->wiphy->interface_modes =
350 BIT(NL80211_IFTYPE_AP) |
351 BIT(NL80211_IFTYPE_STATION) |
352 BIT(NL80211_IFTYPE_ADHOC) |
353 BIT(NL80211_IFTYPE_MESH_POINT) ;
354 /*<delete in kernel start>*/
355 #endif
356 /*<delete in kernel end>*/
357 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39))
358 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
359 #endif
360
361 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
362 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
363 #endif
364
365 hw->wiphy->rts_threshold = 2347;
366
367 hw->queues = AC_MAX;
368 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
369
370 /* TODO: Correct this value for our hw */
371 /* TODO: define these hard code value */
372 hw->max_listen_interval = 10;
373 hw->max_rate_tries = 4;
374 /* hw->max_rates = 1; */
375 hw->sta_data_size = sizeof(struct rtl_sta_info);
376 #ifdef VIF_TODO
377 hw->vif_data_size = sizeof(struct rtl_vif_info);
378 #endif
379
380 /* <6> mac address */
381 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
382 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
383 } else {
384 u8 rtlmac[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
385 get_random_bytes((rtlmac + (ETH_ALEN - 1)), 1);
386 SET_IEEE80211_PERM_ADDR(hw, rtlmac);
387 }
388
389 }
390
391 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
392 {
393 struct rtl_priv *rtlpriv = rtl_priv(hw);
394
395 /* <1> timer */
396 init_timer(&rtlpriv->works.watchdog_timer);
397 setup_timer(&rtlpriv->works.watchdog_timer,
398 rtl_watch_dog_timer_callback, (unsigned long)hw);
399 init_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer);
400 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
401 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
402 /* <2> work queue */
403 rtlpriv->works.hw = hw;
404 /*<delete in kernel start>*/
405 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37))
406 /*<delete in kernel end>*/
407 rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
408 /*<delete in kernel start>*/
409 #else
410 rtlpriv->works.rtl_wq = create_workqueue(rtlpriv->cfg->name);
411 #endif
412 /*<delete in kernel end>*/
413 if (!rtlpriv->works.rtl_wq)
414 return -ENOMEM;
415
416 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
417 (void *)rtl_watchdog_wq_callback);
418 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
419 (void *)rtl_ips_nic_off_wq_callback);
420 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
421 (void *)rtl_swlps_wq_callback);
422 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
423 (void *)rtl_swlps_rfon_wq_callback);
424 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
425 (void *)rtl_fwevt_wq_callback);
426
427 return 0;
428
429 }
430
431 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
432 {
433 struct rtl_priv *rtlpriv = rtl_priv(hw);
434
435 del_timer_sync(&rtlpriv->works.watchdog_timer);
436
437 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
438 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
439 cancel_delayed_work(&rtlpriv->works.ps_work);
440 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
441 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
442 }
443
444 void rtl_init_rfkill(struct ieee80211_hw *hw)
445 {
446 struct rtl_priv *rtlpriv = rtl_priv(hw);
447
448 bool radio_state;
449 bool blocked;
450 u8 valid = 0;
451
452 /*set init state to on */
453 rtlpriv->rfkill.rfkill_state = 1;
454 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
455
456 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
457
458 if (valid) {
459 printk(KERN_INFO "rtlwifi: wireless switch is %s\n",
460 rtlpriv->rfkill.rfkill_state ? "on" : "off");
461
462 rtlpriv->rfkill.rfkill_state = radio_state;
463
464 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
465 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
466 }
467
468 wiphy_rfkill_start_polling(hw->wiphy);
469 }
470
471 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
472 {
473 wiphy_rfkill_stop_polling(hw->wiphy);
474 }
475
476 #ifdef VIF_TODO
477 static void rtl_init_vif(struct ieee80211_hw *hw)
478 {
479 struct rtl_priv *rtlpriv = rtl_priv(hw);
480
481 INIT_LIST_HEAD(&rtlpriv->vif_priv.vif_list);
482
483 rtlpriv->vif_priv.vifs = 0;
484 }
485 #endif
486
487 int rtl_init_core(struct ieee80211_hw *hw)
488 {
489 struct rtl_priv *rtlpriv = rtl_priv(hw);
490 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
491
492 /* <1> init mac80211 */
493 _rtl_init_mac80211(hw);
494 rtlmac->hw = hw;
495 rtlmac->link_state = MAC80211_NOLINK;
496
497 /* <2> rate control register */
498 hw->rate_control_algorithm = "rtl_rc";
499
500 /*
501 * <3> init CRDA must come after init
502 * mac80211 hw in _rtl_init_mac80211.
503 */
504 if (rtl_regd_init(hw, rtl_reg_notifier)) {
505 RT_TRACE(COMP_ERR, DBG_EMERG, ("REGD init failed\n"));
506 return 1;
507 }
508
509 /* <4> locks */
510 mutex_init(&rtlpriv->locks.conf_mutex);
511 spin_lock_init(&rtlpriv->locks.ips_lock);
512 spin_lock_init(&rtlpriv->locks.irq_th_lock);
513 spin_lock_init(&rtlpriv->locks.h2c_lock);
514 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
515 spin_lock_init(&rtlpriv->locks.rf_lock);
516 spin_lock_init(&rtlpriv->locks.lps_lock);
517 spin_lock_init(&rtlpriv->locks.waitq_lock);
518 spin_lock_init(&rtlpriv->locks.entry_list_lock);
519 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
520 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
521 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
522 spin_lock_init(&rtlpriv->locks.iqk_lock);
523 /* <5> init list */
524 INIT_LIST_HEAD(&rtlpriv->entry_list);
525
526 /* <6> init deferred work */
527 if (_rtl_init_deferred_work(hw))
528 return 1;
529
530 /* <7> */
531 #ifdef VIF_TODO
532 rtl_init_vif(hw);
533 #endif
534
535 return 0;
536 }
537
538 void rtl_deinit_core(struct ieee80211_hw *hw)
539 {
540 }
541
542 void rtl_init_rx_config(struct ieee80211_hw *hw)
543 {
544 struct rtl_priv *rtlpriv = rtl_priv(hw);
545 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
546
547 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
548 }
549
550 /*********************************************************
551 *
552 * tx information functions
553 *
554 *********************************************************/
555 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
556 struct rtl_tcb_desc *tcb_desc,
557 struct ieee80211_tx_info *info)
558 {
559 struct rtl_priv *rtlpriv = rtl_priv(hw);
560 u8 rate_flag = info->control.rates[0].flags;
561
562 tcb_desc->use_shortpreamble = false;
563
564 /* 1M can only use Long Preamble. 11B spec */
565 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
566 return;
567 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
568 tcb_desc->use_shortpreamble = true;
569
570 return;
571 }
572
573 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
574 struct ieee80211_sta *sta,
575 struct rtl_tcb_desc *tcb_desc,
576 struct ieee80211_tx_info *info)
577 {
578 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
579 u8 rate_flag = info->control.rates[0].flags;
580 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
581 tcb_desc->use_shortgi = false;
582
583 if (sta == NULL)
584 return;
585
586 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
587 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
588
589 if (!(sta->ht_cap.ht_supported))
590 return;
591
592 if (!sgi_40 && !sgi_20)
593 return;
594
595 if (mac->opmode == NL80211_IFTYPE_STATION)
596 bw_40 = mac->bw_40;
597 else if (mac->opmode == NL80211_IFTYPE_AP ||
598 mac->opmode == NL80211_IFTYPE_ADHOC ||
599 mac->opmode == NL80211_IFTYPE_MESH_POINT)
600 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
601
602 if ((bw_40 == true) && sgi_40)
603 tcb_desc->use_shortgi = true;
604 else if ((bw_40 == false) && sgi_20)
605 tcb_desc->use_shortgi = true;
606
607 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
608 tcb_desc->use_shortgi = false;
609 }
610
611 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
612 struct rtl_tcb_desc *tcb_desc,
613 struct ieee80211_tx_info *info)
614 {
615 struct rtl_priv *rtlpriv = rtl_priv(hw);
616 u8 rate_flag = info->control.rates[0].flags;
617
618 /* Common Settings */
619 tcb_desc->b_rts_stbc = false;
620 tcb_desc->b_cts_enable = false;
621 tcb_desc->rts_sc = 0;
622 tcb_desc->b_rts_bw = false;
623 tcb_desc->b_rts_use_shortpreamble = false;
624 tcb_desc->b_rts_use_shortgi = false;
625
626 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
627 /* Use CTS-to-SELF in protection mode. */
628 tcb_desc->b_rts_enable = true;
629 tcb_desc->b_cts_enable = true;
630 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
631 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
632 /* Use RTS-CTS in protection mode. */
633 tcb_desc->b_rts_enable = true;
634 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
635 }
636 }
637
638 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
639 struct ieee80211_sta *sta,
640 struct rtl_tcb_desc *tcb_desc)
641 {
642 struct rtl_priv *rtlpriv = rtl_priv(hw);
643 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
644 struct rtl_sta_info *sta_entry = NULL;
645 u8 ratr_index = 7;
646
647 if (sta) {
648 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
649 ratr_index = sta_entry->ratr_index;
650 }
651 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
652 if (mac->opmode == NL80211_IFTYPE_STATION) {
653 tcb_desc->ratr_index = 0;
654 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
655 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
656 if (tcb_desc->b_multicast || tcb_desc->b_broadcast) {
657 tcb_desc->hw_rate =
658 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
659 tcb_desc->use_driver_rate = 1;
660 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
661 } else {
662 tcb_desc->ratr_index = ratr_index;
663 }
664 } else if (mac->opmode == NL80211_IFTYPE_AP) {
665 tcb_desc->ratr_index = ratr_index;
666 }
667 }
668
669 if (rtlpriv->dm.b_useramask) {
670 tcb_desc->ratr_index = ratr_index;
671 /* TODO we will differentiate adhoc and station future */
672 if (mac->opmode == NL80211_IFTYPE_STATION ||
673 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
674 tcb_desc->mac_id = 0;
675 if (mac->mode == WIRELESS_MODE_N_24G)
676 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
677 else if (mac->mode == WIRELESS_MODE_N_5G)
678 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
679 else if (mac->mode & WIRELESS_MODE_G)
680 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
681 else if (mac->mode & WIRELESS_MODE_B)
682 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
683 else if (mac->mode & WIRELESS_MODE_A)
684 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
685 } else if (mac->opmode == NL80211_IFTYPE_AP ||
686 mac->opmode == NL80211_IFTYPE_ADHOC) {
687 if (NULL != sta) {
688 if (sta->aid > 0)
689 tcb_desc->mac_id = sta->aid + 1;
690 else
691 tcb_desc->mac_id = 1;
692 } else {
693 tcb_desc->mac_id = 0;
694 }
695 }
696 }
697 }
698
699 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
700 struct ieee80211_sta *sta,
701 struct rtl_tcb_desc *tcb_desc)
702 {
703 struct rtl_priv *rtlpriv = rtl_priv(hw);
704 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
705
706 tcb_desc->b_packet_bw = false;
707 if (!sta)
708 return;
709 if (mac->opmode == NL80211_IFTYPE_AP ||
710 mac->opmode == NL80211_IFTYPE_ADHOC ||
711 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
712 if (!(sta->ht_cap.ht_supported) ||
713 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
714 return;
715 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
716 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
717 return;
718 }
719 if (tcb_desc->b_multicast || tcb_desc->b_broadcast)
720 return;
721
722 /*use legency rate, shall use 20MHz */
723 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
724 return;
725
726 tcb_desc->b_packet_bw = true;
727 }
728
729 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
730 struct ieee80211_sta *sta)
731 {
732 struct rtl_priv *rtlpriv = rtl_priv(hw);
733 struct rtl_phy *rtlphy = &(rtlpriv->phy);
734 u8 hw_rate;
735
736 if ((get_rf_type(rtlphy) == RF_2T2R) && (sta->ht_cap.mcs.rx_mask[1] != 0))
737 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
738 else
739 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
740
741 return hw_rate;
742 }
743
744 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
745 struct ieee80211_tx_info *info,
746 struct ieee80211_sta *sta,
747 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
748 {
749 struct rtl_priv *rtlpriv = rtl_priv(hw);
750 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
751 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
752 struct ieee80211_rate *txrate;
753 u16 fc = rtl_get_fc(skb);
754
755 txrate = ieee80211_get_tx_rate(hw, info);
756 if (txrate != NULL)
757 tcb_desc->hw_rate = txrate->hw_value;
758
759 if (ieee80211_is_data(fc)) {
760 /*
761 *we set data rate INX 0
762 *in rtl_rc.c if skb is special data or
763 *mgt which need low data rate.
764 */
765
766 /*
767 *So tcb_desc->hw_rate is just used for
768 *special data and mgt frames
769 */
770 if (info->control.rates[0].idx == 0 ||
771 ieee80211_is_nullfunc(fc)) {
772 tcb_desc->use_driver_rate = true;
773 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
774
775 tcb_desc->disable_ratefallback = 1;
776 } else {
777 /*
778 *because hw will never use hw_rate
779 *when tcb_desc->use_driver_rate = false
780 *so we never set highest N rate here,
781 *and N rate will all be controlled by FW
782 *when tcb_desc->use_driver_rate = false
783 */
784 if (sta && (sta->ht_cap.ht_supported)) {
785 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw, sta);
786 } else {
787 if (rtlmac->mode == WIRELESS_MODE_B) {
788 tcb_desc->hw_rate =
789 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
790 } else {
791 tcb_desc->hw_rate =
792 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
793 }
794 }
795 }
796
797 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
798 tcb_desc->b_multicast = 1;
799 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
800 tcb_desc->b_broadcast = 1;
801
802 _rtl_txrate_selectmode(hw, sta, tcb_desc);
803 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
804 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
805 _rtl_query_shortgi(hw, sta, tcb_desc, info);
806 _rtl_query_protection_mode(hw, tcb_desc, info);
807 } else {
808 tcb_desc->use_driver_rate = true;
809 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
810 tcb_desc->disable_ratefallback = 1;
811 tcb_desc->mac_id = 0;
812 tcb_desc->b_packet_bw = false;
813 }
814 }
815 /* EXPORT_SYMBOL(rtl_get_tcb_desc); */
816
817 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
818 {
819 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
820 struct rtl_priv *rtlpriv = rtl_priv(hw);
821 u16 fc = rtl_get_fc(skb);
822
823 if (rtlpriv->dm.supp_phymode_switch &&
824 mac->link_state < MAC80211_LINKED &&
825 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
826 if (rtlpriv->cfg->ops->check_switch_to_dmdp)
827 rtlpriv->cfg->ops->check_switch_to_dmdp(hw);
828 }
829 if (ieee80211_is_auth(fc)) {
830 RT_TRACE(COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
831 rtl_ips_nic_on(hw);
832
833 mac->link_state = MAC80211_LINKING;
834 /* Dul mac */
835 rtlpriv->phy.b_need_iqk = true;
836
837 }
838
839 return true;
840 }
841
842 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
843 u8 *bssid, u16 tid);
844 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
845 {
846 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
847 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
848 struct rtl_priv *rtlpriv = rtl_priv(hw);
849 u16 fc = rtl_get_fc(skb);
850 u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
851 u8 category;
852
853 if (!ieee80211_is_action(fc))
854 return true;
855
856 category = *act;
857 act++;
858 switch (category) {
859 case ACT_CAT_BA:
860 switch (*act) {
861 case ACT_ADDBAREQ:
862 if (mac->act_scanning)
863 return false;
864
865 RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
866 ("%s ACT_ADDBAREQ From :%pM\n",
867 is_tx ? "Tx" : "Rx", hdr->addr2));
868 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, ("req\n"),
869 skb->data, skb->len);
870 if (!is_tx) {
871 struct ieee80211_sta *sta = NULL;
872 struct rtl_sta_info *sta_entry = NULL;
873 struct ieee80211_mgmt *mgmt = (void *)skb->data;
874 u16 capab = 0, tid = 0;
875 struct rtl_tid_data *tid_data;
876 struct sk_buff *skb_delba = NULL;
877 struct ieee80211_rx_status rx_status = { 0 };
878
879 rcu_read_lock();
880 sta = rtl_find_sta(hw, hdr->addr3);
881 if (sta == NULL) {
882 RT_TRACE((COMP_SEND | COMP_RECV),
883 DBG_EMERG, ("sta is NULL\n"));
884 rcu_read_unlock();
885 return true;
886 }
887
888 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
889 if (!sta_entry) {
890 rcu_read_unlock();
891 return true;
892 }
893 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
894 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
895 tid_data = &sta_entry->tids[tid];
896 if (tid_data->agg.rx_agg_state ==
897 RTL_RX_AGG_START) {
898 skb_delba = rtl_make_del_ba(hw,
899 hdr->addr2,
900 hdr->addr3,
901 tid);
902 if (skb_delba) {
903 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
904 rx_status.freq = hw->conf.chandef.chan->center_freq;
905 rx_status.band = hw->conf.chandef.chan->band;
906 #else
907 rx_status.freq = hw->conf.channel->center_freq;
908 rx_status.band = hw->conf.channel->band;
909 #endif
910 rx_status.flag |= RX_FLAG_DECRYPTED;
911 rx_status.flag |= RX_FLAG_MACTIME_MPDU;
912 rx_status.rate_idx = 0;
913 rx_status.signal = 50 + 10;
914 memcpy(IEEE80211_SKB_RXCB(skb_delba), &rx_status,
915 sizeof(rx_status));
916 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
917 ("fake del\n"), skb_delba->data,
918 skb_delba->len);
919 ieee80211_rx_irqsafe(hw, skb_delba);
920 }
921 }
922 rcu_read_unlock();
923 }
924 break;
925 case ACT_ADDBARSP:
926 RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
927 ("%s ACT_ADDBARSP From :%pM\n",
928 is_tx ? "Tx" : "Rx", hdr->addr2));
929 break;
930 case ACT_DELBA:
931 RT_TRACE((COMP_SEND | COMP_RECV), DBG_DMESG,
932 ("ACT_ADDBADEL From :%pM\n", hdr->addr2));
933 break;
934 }
935 break;
936 default:
937 break;
938 }
939
940 return true;
941 }
942
943 /*should call before software enc*/
944 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
945 {
946 struct rtl_priv *rtlpriv = rtl_priv(hw);
947 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
948 u16 fc = rtl_get_fc(skb);
949 u16 ether_type;
950 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
951 const struct iphdr *ip;
952
953 if (!ieee80211_is_data(fc))
954 goto end;
955
956
957 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
958 SNAP_SIZE + PROTOC_TYPE_SIZE);
959 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
960 ether_type = ntohs(ether_type);
961
962 if (ETH_P_IP == ether_type) {
963 if (IPPROTO_UDP == ip->protocol) {
964 struct udphdr *udp = (struct udphdr *)((u8 *) ip +
965 (ip->ihl << 2));
966 if (((((u8 *) udp)[1] == 68) &&
967 (((u8 *) udp)[3] == 67)) ||
968 ((((u8 *) udp)[1] == 67) &&
969 (((u8 *) udp)[3] == 68))) {
970 /*
971 * 68 : UDP BOOTP client
972 * 67 : UDP BOOTP server
973 */
974 RT_TRACE((COMP_SEND | COMP_RECV),
975 DBG_DMESG, ("dhcp %s !!\n",
976 (is_tx) ? "Tx" : "Rx"));
977
978 if (is_tx) {
979 rtlpriv->ra.is_special_data = true;
980 rtl_lps_leave(hw);
981 ppsc->last_delaylps_stamp_jiffies =
982 jiffies;
983 }
984
985 return true;
986 }
987 }
988 } else if (ETH_P_ARP == ether_type) {
989 if (is_tx) {
990 rtlpriv->ra.is_special_data = true;
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((COMP_SEND | COMP_RECV), DBG_DMESG,
998 ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));
999
1000 if (is_tx) {
1001 rtlpriv->ra.is_special_data = true;
1002 rtl_lps_leave(hw);
1003 ppsc->last_delaylps_stamp_jiffies = jiffies;
1004 }
1005
1006 return true;
1007 } else if (0x86DD == ether_type) {
1008 return true;
1009 }
1010
1011 end:
1012 rtlpriv->ra.is_special_data = false;
1013 return false;
1014 }
1015
1016 /*********************************************************
1017 *
1018 * functions called by core.c
1019 *
1020 *********************************************************/
1021 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1022 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1023 {
1024 struct rtl_priv *rtlpriv = rtl_priv(hw);
1025 struct rtl_tid_data *tid_data;
1026 struct rtl_sta_info *sta_entry = NULL;
1027
1028 if (sta == NULL)
1029 return -EINVAL;
1030
1031 if (unlikely(tid >= MAX_TID_COUNT))
1032 return -EINVAL;
1033
1034 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1035 if (!sta_entry)
1036 return -ENXIO;
1037 tid_data = &sta_entry->tids[tid];
1038
1039 RT_TRACE(COMP_SEND, DBG_DMESG,
1040 ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1041 tid_data->seq_number));
1042
1043 *ssn = tid_data->seq_number;
1044 tid_data->agg.agg_state = RTL_AGG_START;
1045
1046 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1047 return 0;
1048 }
1049
1050 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1051 struct ieee80211_sta *sta, u16 tid)
1052 {
1053 struct rtl_priv *rtlpriv = rtl_priv(hw);
1054 struct rtl_tid_data *tid_data;
1055 struct rtl_sta_info *sta_entry = NULL;
1056
1057 if (sta == NULL)
1058 return -EINVAL;
1059
1060 if (!sta->addr) {
1061 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1062 return -EINVAL;
1063 }
1064
1065 RT_TRACE(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 tid_data = &sta_entry->tids[tid];
1073 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1074
1075 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1076 return 0;
1077 }
1078
1079 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1080 struct ieee80211_sta *sta, u16 tid)
1081 {
1082 struct rtl_priv *rtlpriv = rtl_priv(hw);
1083 struct rtl_tid_data *tid_data;
1084 struct rtl_sta_info *sta_entry = NULL;
1085
1086 if (sta == NULL)
1087 return -EINVAL;
1088
1089 if (unlikely(tid >= MAX_TID_COUNT))
1090 return -EINVAL;
1091
1092 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1093 if (!sta_entry)
1094 return -ENXIO;
1095 tid_data = &sta_entry->tids[tid];
1096
1097 RT_TRACE(COMP_RECV, DBG_DMESG,
1098 ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1099 tid_data->seq_number));
1100
1101 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1102 return 0;
1103 }
1104
1105 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1106 struct ieee80211_sta *sta, u16 tid)
1107 {
1108 struct rtl_priv *rtlpriv = rtl_priv(hw);
1109 struct rtl_tid_data *tid_data;
1110 struct rtl_sta_info *sta_entry = NULL;
1111
1112 if (sta == NULL)
1113 return -EINVAL;
1114
1115 if (!sta->addr) {
1116 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1117 return -EINVAL;
1118 }
1119
1120 RT_TRACE(COMP_SEND, DBG_DMESG,
1121 ("on ra = %pM tid = %d\n", sta->addr, tid));
1122
1123 if (unlikely(tid >= MAX_TID_COUNT))
1124 return -EINVAL;
1125
1126 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1127 tid_data = &sta_entry->tids[tid];
1128 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1129
1130 return 0;
1131 }
1132 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1133 struct ieee80211_sta *sta, u16 tid)
1134 {
1135 struct rtl_priv *rtlpriv = rtl_priv(hw);
1136 struct rtl_tid_data *tid_data;
1137 struct rtl_sta_info *sta_entry = NULL;
1138
1139 if (sta == NULL)
1140 return -EINVAL;
1141
1142 if (!sta->addr) {
1143 RT_TRACE(COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1144 return -EINVAL;
1145 }
1146
1147 RT_TRACE(COMP_SEND, DBG_DMESG,
1148 ("on ra = %pM tid = %d\n", sta->addr, tid));
1149
1150 if (unlikely(tid >= MAX_TID_COUNT))
1151 return -EINVAL;
1152
1153 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1154 tid_data = &sta_entry->tids[tid];
1155 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1156
1157 return 0;
1158 }
1159
1160 /*********************************************************
1161 *
1162 * wq & timer callback functions
1163 *
1164 *********************************************************/
1165 /* this function is used for roaming */
1166 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1167 {
1168 struct rtl_priv *rtlpriv = rtl_priv(hw);
1169 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1170
1171 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1172 return;
1173
1174 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1175 return;
1176
1177 /* check if this really is a beacon */
1178 if (!ieee80211_is_beacon(hdr->frame_control) &&
1179 !ieee80211_is_probe_resp(hdr->frame_control))
1180 return;
1181
1182 /* min. beacon length + FCS_LEN */
1183 if (skb->len <= 40 + FCS_LEN)
1184 return;
1185
1186 /* and only beacons from the associated BSSID, please */
1187 if (ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1188 return;
1189
1190 rtlpriv->link_info.bcn_rx_inperiod++;
1191 }
1192
1193 void rtl_watchdog_wq_callback(void *data)
1194 {
1195 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1196 struct rtl_works,
1197 watchdog_wq);
1198 struct ieee80211_hw *hw = rtlworks->hw;
1199 struct rtl_priv *rtlpriv = rtl_priv(hw);
1200 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1201 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1202 bool b_busytraffic = false;
1203 bool b_tx_busy_traffic = false;
1204 bool b_rx_busy_traffic = false;
1205 bool b_higher_busytraffic = false;
1206 bool b_higher_busyrxtraffic = false;
1207 u8 idx, tid;
1208 u32 rx_cnt_inp4eriod = 0;
1209 u32 tx_cnt_inp4eriod = 0;
1210 u32 aver_rx_cnt_inperiod = 0;
1211 u32 aver_tx_cnt_inperiod = 0;
1212 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1213 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1214 bool benter_ps = false;
1215
1216 if (is_hal_stop(rtlhal))
1217 return;
1218
1219 /* <1> Determine if action frame is allowed */
1220 if (mac->link_state > MAC80211_NOLINK) {
1221 if (mac->cnt_after_linked < 20)
1222 mac->cnt_after_linked++;
1223 } else {
1224 mac->cnt_after_linked = 0;
1225 }
1226
1227 /* <2> to check if traffic busy, if
1228 * busytraffic we don't change channel */
1229 if (mac->link_state >= MAC80211_LINKED) {
1230
1231 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1232 for (idx = 0; idx <= 2; idx++) {
1233 rtlpriv->link_info.num_rx_in4period[idx] =
1234 rtlpriv->link_info.num_rx_in4period[idx + 1];
1235 rtlpriv->link_info.num_tx_in4period[idx] =
1236 rtlpriv->link_info.num_tx_in4period[idx + 1];
1237 }
1238 rtlpriv->link_info.num_rx_in4period[3] =
1239 rtlpriv->link_info.num_rx_inperiod;
1240 rtlpriv->link_info.num_tx_in4period[3] =
1241 rtlpriv->link_info.num_tx_inperiod;
1242 for (idx = 0; idx <= 3; idx++) {
1243 rx_cnt_inp4eriod +=
1244 rtlpriv->link_info.num_rx_in4period[idx];
1245 tx_cnt_inp4eriod +=
1246 rtlpriv->link_info.num_tx_in4period[idx];
1247 }
1248 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1249 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1250
1251 /* (2) check traffic busy */
1252 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1253 b_busytraffic = true;
1254 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1255 b_rx_busy_traffic = true;
1256 else
1257 b_tx_busy_traffic = false;
1258 }
1259
1260 /* Higher Tx/Rx data. */
1261 if (aver_rx_cnt_inperiod > 4000 ||
1262 aver_tx_cnt_inperiod > 4000) {
1263 b_higher_busytraffic = true;
1264
1265 /* Extremely high Rx data. */
1266 if (aver_rx_cnt_inperiod > 5000)
1267 b_higher_busyrxtraffic = true;
1268 }
1269
1270 /* check every tid's tx traffic */
1271 for (tid = 0; tid <= 7; tid++) {
1272 for (idx = 0; idx <= 2; idx++)
1273 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1274 rtlpriv->link_info.tidtx_in4period[tid]
1275 [idx + 1];
1276 rtlpriv->link_info.tidtx_in4period[tid][3] =
1277 rtlpriv->link_info.tidtx_inperiod[tid];
1278
1279 for (idx = 0; idx <= 3; idx++)
1280 tidtx_inp4eriod[tid] +=
1281 rtlpriv->link_info.tidtx_in4period[tid][idx];
1282 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1283 if (aver_tidtx_inperiod[tid] > 5000)
1284 rtlpriv->link_info.higher_busytxtraffic[tid] =
1285 true;
1286 else
1287 rtlpriv->link_info.higher_busytxtraffic[tid] =
1288 false;
1289 }
1290
1291 if (((rtlpriv->link_info.num_rx_inperiod +
1292 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1293 (rtlpriv->link_info.num_rx_inperiod > 2))
1294 benter_ps = false;
1295 else
1296 benter_ps = true;
1297
1298 /* LeisurePS only work in infra mode. */
1299 if (benter_ps)
1300 rtl_lps_enter(hw);
1301 else
1302 rtl_lps_leave(hw);
1303 }
1304
1305 rtlpriv->link_info.num_rx_inperiod = 0;
1306 rtlpriv->link_info.num_tx_inperiod = 0;
1307 for (tid = 0; tid <= 7; tid++)
1308 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1309
1310 rtlpriv->link_info.b_busytraffic = b_busytraffic;
1311 rtlpriv->link_info.b_rx_busy_traffic = b_rx_busy_traffic;
1312 rtlpriv->link_info.b_tx_busy_traffic = b_tx_busy_traffic;
1313 rtlpriv->link_info.b_higher_busytraffic = b_higher_busytraffic;
1314 rtlpriv->link_info.b_higher_busyrxtraffic = b_higher_busyrxtraffic;
1315
1316 /* <3> DM */
1317 rtlpriv->cfg->ops->dm_watchdog(hw);
1318
1319 /* <4> roaming */
1320 if (mac->link_state == MAC80211_LINKED &&
1321 mac->opmode == NL80211_IFTYPE_STATION) {
1322 if ((rtlpriv->link_info.bcn_rx_inperiod +
1323 rtlpriv->link_info.num_rx_inperiod) == 0) {
1324 rtlpriv->link_info.roam_times++;
1325 RT_TRACE(COMP_ERR, DBG_DMESG, ("AP off for %d s\n",
1326 (rtlpriv->link_info.roam_times * 2)));
1327
1328 /* if we can't recv beacon for 10s,
1329 * we should reconnect this AP */
1330 if (rtlpriv->link_info.roam_times >= 5) {
1331 RT_TRACE(COMP_ERR, DBG_EMERG,
1332 ("AP off, try to reconnect now\n"));
1333 rtlpriv->link_info.roam_times = 0;
1334 ieee80211_connection_loss(rtlpriv->mac80211.vif);
1335 }
1336 } else {
1337 rtlpriv->link_info.roam_times = 0;
1338 }
1339 }
1340 rtlpriv->link_info.bcn_rx_inperiod = 0;
1341 }
1342
1343 void rtl_watch_dog_timer_callback(unsigned long data)
1344 {
1345 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1346 struct rtl_priv *rtlpriv = rtl_priv(hw);
1347
1348 queue_delayed_work(rtlpriv->works.rtl_wq,
1349 &rtlpriv->works.watchdog_wq, 0);
1350
1351 mod_timer(&rtlpriv->works.watchdog_timer,
1352 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1353 }
1354 void rtl_fwevt_wq_callback(void *data)
1355 {
1356 struct rtl_works *rtlworks =
1357 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1358 struct ieee80211_hw *hw = rtlworks->hw;
1359 struct rtl_priv *rtlpriv = rtl_priv(hw);
1360
1361 rtlpriv->cfg->ops->c2h_command_handle(hw);
1362 }
1363 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1364 {
1365 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1366 struct rtl_priv *rtlpriv = rtl_priv(hw);
1367 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1368
1369 if (buddy_priv == NULL)
1370 return;
1371
1372 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1373 }
1374 /*********************************************************
1375 *
1376 * frame process functions
1377 *
1378 *********************************************************/
1379 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1380 {
1381 struct ieee80211_mgmt *mgmt = (void *)data;
1382 u8 *pos, *end;
1383
1384 pos = (u8 *)mgmt->u.beacon.variable;
1385 end = data + len;
1386 while (pos < end) {
1387 if (pos + 2 + pos[1] > end)
1388 return NULL;
1389
1390 if (pos[0] == ie)
1391 return pos;
1392
1393 pos += 2 + pos[1];
1394 }
1395 return NULL;
1396 }
1397
1398 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1399 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1400 struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1401 enum ieee80211_smps_mode smps,
1402 u8 *da, u8 *bssid)
1403 {
1404 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1405 struct sk_buff *skb;
1406 struct ieee80211_mgmt_compat *action_frame;
1407
1408 /* 27 = header + category + action + smps mode */
1409 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1410 if (!skb)
1411 return NULL;
1412
1413 skb_reserve(skb, hw->extra_tx_headroom);
1414 action_frame = (void *)skb_put(skb, 27);
1415 memset(action_frame, 0, 27);
1416 memcpy(action_frame->da, da, ETH_ALEN);
1417 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1418 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1419 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1420 IEEE80211_STYPE_ACTION);
1421 action_frame->u.action.category = WLAN_CATEGORY_HT;
1422 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1423 switch (smps) {
1424 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1425 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1426 WARN_ON(1);
1427 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1428 action_frame->u.action.u.ht_smps.smps_control =
1429 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1430 break;
1431 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1432 action_frame->u.action.u.ht_smps.smps_control =
1433 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1434 break;
1435 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1436 action_frame->u.action.u.ht_smps.smps_control =
1437 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1438 break;
1439 }
1440
1441 return skb;
1442 }
1443
1444 int rtl_send_smps_action(struct ieee80211_hw *hw,
1445 struct ieee80211_sta *sta,
1446 enum ieee80211_smps_mode smps)
1447 {
1448 struct rtl_priv *rtlpriv = rtl_priv(hw);
1449 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1450 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1451 struct sk_buff *skb = NULL;
1452 struct rtl_tcb_desc tcb_desc;
1453 u8 bssid[ETH_ALEN] = {0};
1454
1455 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1456
1457 if (rtlpriv->mac80211.act_scanning)
1458 goto err_free;
1459
1460 if (!sta)
1461 goto err_free;
1462
1463 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1464 goto err_free;
1465
1466 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1467 goto err_free;
1468
1469 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1470 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1471 else
1472 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1473
1474 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1475 /* this is a type = mgmt * stype = action frame */
1476 if (skb) {
1477 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1478 struct rtl_sta_info *sta_entry =
1479 (struct rtl_sta_info *) sta->drv_priv;
1480 sta_entry->mimo_ps = smps;
1481 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1482
1483 info->control.rates[0].idx = 0;
1484 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
1485 info->band = hw->conf.chandef.chan->band;
1486 #else
1487 info->band = hw->conf.channel->band;
1488 #endif
1489 /*<delete in kernel start>*/
1490 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
1491 info->control.sta = sta;
1492 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
1493 #else
1494 /*<delete in kernel end>*/
1495 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1496 /*<delete in kernel start>*/
1497 #endif
1498 /*<delete in kernel end>*/
1499 }
1500 return 1;
1501
1502 err_free:
1503 return 0;
1504 }
1505 /* EXPORT_SYMBOL(rtl_send_smps_action); */
1506
1507 /* because mac80211 have issues when can receive del ba
1508 * so here we just make a fake del_ba if we receive a ba_req
1509 * but rx_agg was opened to let mac80211 release some ba
1510 * related resources, so please this del_ba for tx */
1511 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1512 u8 *sa, u8 *bssid, u16 tid)
1513 {
1514 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1515 struct sk_buff *skb;
1516 struct ieee80211_mgmt *action_frame;
1517 u16 params;
1518
1519 /* 27 = header + category + action + smps mode */
1520 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1521 if (!skb)
1522 return NULL;
1523
1524 skb_reserve(skb, hw->extra_tx_headroom);
1525 action_frame = (void *)skb_put(skb, 34);
1526 memset(action_frame, 0, 34);
1527 memcpy(action_frame->sa, sa, ETH_ALEN);
1528 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1529 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1530 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1531 IEEE80211_STYPE_ACTION);
1532 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1533 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1534 params = (u16)(1 << 11); /* bit 11 initiator */
1535 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1536
1537 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1538 action_frame->u.action.u.delba.reason_code =
1539 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1540
1541 return skb;
1542 }
1543
1544 /*********************************************************
1545 *
1546 * IOT functions
1547 *
1548 *********************************************************/
1549 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1550 struct octet_string vendor_ie)
1551 {
1552 struct rtl_priv *rtlpriv = rtl_priv(hw);
1553 bool matched = false;
1554 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1555 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1556 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1557 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1558 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1559 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1560 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1561 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1562
1563 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1564 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1565 rtlpriv->mac80211.vendor = PEER_ATH;
1566 matched = true;
1567 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1568 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1569 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1570 rtlpriv->mac80211.vendor = PEER_BROAD;
1571 matched = true;
1572 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1573 rtlpriv->mac80211.vendor = PEER_RAL;
1574 matched = true;
1575 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1576 rtlpriv->mac80211.vendor = PEER_CISCO;
1577 matched = true;
1578 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1579 rtlpriv->mac80211.vendor = PEER_MARV;
1580 matched = true;
1581 }
1582
1583 return matched;
1584 }
1585
1586 bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1587 unsigned int len)
1588 {
1589 struct ieee80211_mgmt *mgmt = (void *)data;
1590 struct octet_string vendor_ie;
1591 u8 *pos, *end;
1592
1593 pos = (u8 *)mgmt->u.beacon.variable;
1594 end = data + len;
1595 while (pos < end) {
1596 if (pos[0] == 221) {
1597 vendor_ie.length = pos[1];
1598 vendor_ie.octet = &pos[2];
1599 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1600 return true;
1601 }
1602
1603 if (pos + 2 + pos[1] > end)
1604 return false;
1605
1606 pos += 2 + pos[1];
1607 }
1608 return false;
1609 }
1610
1611 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1612 {
1613 struct rtl_priv *rtlpriv = rtl_priv(hw);
1614 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1615 struct ieee80211_hdr *hdr = (void *)data;
1616 u32 vendor = PEER_UNKNOWN;
1617
1618 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1619 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1620 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1621 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1622 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1623 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1624 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1625 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1626 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1627 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1628 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1629 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1630 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1631 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1632 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1633 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1634
1635 if (mac->opmode != NL80211_IFTYPE_STATION)
1636 return;
1637
1638 if (mac->link_state == MAC80211_NOLINK) {
1639 mac->vendor = PEER_UNKNOWN;
1640 return;
1641 }
1642
1643 if (mac->cnt_after_linked > 2)
1644 return;
1645
1646 /* check if this really is a beacon */
1647 if (!ieee80211_is_beacon(hdr->frame_control))
1648 return;
1649
1650 /* min. beacon length + FCS_LEN */
1651 if (len <= 40 + FCS_LEN)
1652 return;
1653
1654 /* and only beacons from the associated BSSID, please */
1655 if (ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1656 return;
1657
1658 if (rtl_find_221_ie(hw, data, len))
1659 vendor = mac->vendor;
1660
1661 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1662 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1663 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1664 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1665 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1666 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1667 vendor == PEER_ATH) {
1668 vendor = PEER_ATH;
1669 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
1670 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1671 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1672 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1673 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1674 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1675 vendor == PEER_RAL) {
1676 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>ral find\n"));
1677 vendor = PEER_RAL;
1678 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1679 vendor == PEER_CISCO) {
1680 vendor = PEER_CISCO;
1681 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
1682 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1683 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1684 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1685 vendor == PEER_BROAD) {
1686 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
1687 vendor = PEER_BROAD;
1688 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1689 vendor == PEER_MARV) {
1690 vendor = PEER_MARV;
1691 RT_TRACE(COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
1692 }
1693
1694 mac->vendor = vendor;
1695 }
1696
1697 /*********************************************************
1698 *
1699 * sysfs functions
1700 *
1701 *********************************************************/
1702 static ssize_t rtl_show_debug_level(struct device *d,
1703 struct device_attribute *attr, char *buf)
1704 {
1705 struct ieee80211_hw *hw = dev_get_drvdata(d);
1706 struct rtl_priv *rtlpriv = rtl_priv(hw);
1707
1708 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1709 }
1710
1711 static ssize_t rtl_store_debug_level(struct device *d,
1712 struct device_attribute *attr,
1713 const char *buf, size_t count)
1714 {
1715 struct ieee80211_hw *hw = dev_get_drvdata(d);
1716 struct rtl_priv *rtlpriv = rtl_priv(hw);
1717 unsigned long val;
1718 int ret;
1719
1720 ret = kstrtoul(buf, 0, &val);
1721 if (ret) {
1722 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1723 } else {
1724 rtlpriv->dbg.global_debuglevel = val;
1725 printk(KERN_DEBUG "debuglevel:%x\n",
1726 rtlpriv->dbg.global_debuglevel);
1727 }
1728
1729 return strnlen(buf, count);
1730 }
1731
1732 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1733 rtl_show_debug_level, rtl_store_debug_level);
1734
1735 static struct attribute *rtl_sysfs_entries[] = {
1736
1737 &dev_attr_debug_level.attr,
1738
1739 NULL
1740 };
1741
1742 /*
1743 * "name" is folder name witch will be
1744 * put in device directory like :
1745 * sys/devices/pci0000:00/0000:00:1c.4/
1746 * 0000:06:00.0/rtl_sysfs
1747 */
1748 struct attribute_group rtl_attribute_group = {
1749 .name = "rtlsysfs",
1750 .attrs = rtl_sysfs_entries,
1751 };
1752
1753 #ifdef VIF_TODO
1754 /*********************************************************
1755 *
1756 * vif functions
1757 *
1758 *********************************************************/
1759 static inline struct ieee80211_vif *
1760 rtl_get_vif(struct rtl_vif_info *vif_priv)
1761 {
1762 return container_of((void *)vif_priv, struct ieee80211_vif, drv_priv);
1763 }
1764
1765 /* Protected by ar->mutex or RCU */
1766 struct ieee80211_vif *rtl_get_main_vif(struct ieee80211_hw *hw)
1767 {
1768 struct rtl_priv *rtlpriv = rtl_priv(hw);
1769 struct rtl_vif_info *cvif;
1770
1771 list_for_each_entry_rcu(cvif, &rtlpriv->vif_priv.vif_list, list) {
1772 if (cvif->active)
1773 return rtl_get_vif(cvif);
1774 }
1775
1776 return NULL;
1777 }
1778
1779 static inline bool is_main_vif(struct ieee80211_hw *hw,
1780 struct ieee80211_vif *vif)
1781 {
1782 bool ret;
1783
1784 rcu_read_lock();
1785 ret = (rtl_get_main_vif(hw) == vif);
1786 rcu_read_unlock();
1787 return ret;
1788 }
1789
1790 bool rtl_set_vif_info(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1791 {
1792 struct rtl_vif_info *vif_info = (void *) vif->drv_priv;
1793 struct rtl_priv *rtlpriv = rtl_priv(hw);
1794 int vif_id = -1;
1795
1796 if (rtlpriv->vif_priv.vifs >= MAX_VIRTUAL_MAC) {
1797 RT_TRACE(COMP_ERR, DBG_WARNING,
1798 ("vif number can not bigger than %d, now vifs is:%d\n",
1799 MAX_VIRTUAL_MAC, rtlpriv->vif_priv.vifs));
1800 return false;
1801 }
1802
1803 rcu_read_lock();
1804 vif_id = bitmap_find_free_region(&rtlpriv->vif_priv.vif_bitmap,
1805 MAX_VIRTUAL_MAC, 0);
1806 RT_TRACE(COMP_MAC80211, DBG_DMESG,
1807 ("%s vid_id:%d\n", __func__, vif_id));
1808
1809 if (vif_id < 0) {
1810 rcu_read_unlock();
1811 return false;
1812 }
1813
1814 BUG_ON(rtlpriv->vif_priv.vif[vif_id].id != vif_id);
1815 vif_info->active = true;
1816 vif_info->id = vif_id;
1817 vif_info->enable_beacon = false;
1818 rtlpriv->vif_priv.vifs++;
1819 if (rtlpriv->vif_priv.vifs > 1) {
1820 rtlpriv->psc.b_inactiveps = false;
1821 rtlpriv->psc.b_swctrl_lps = false;
1822 rtlpriv->psc.b_fwctrl_lps = false;
1823 }
1824
1825 list_add_tail_rcu(&vif_info->list, &rtlpriv->vif_priv.vif_list);
1826 rcu_assign_pointer(rtlpriv->vif_priv.vif[vif_id].vif, vif);
1827
1828 RT_TRACE(COMP_MAC80211, DBG_DMESG, ("vifaddress:%p %p %p\n",
1829 rtlpriv->vif_priv.vif[vif_id].vif, vif, rtl_get_main_vif(hw)));
1830
1831 rcu_read_unlock();
1832
1833 return true;
1834 }
1835 #endif
1836
1837
1838 #if 0
1839 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1840 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1841 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1842 MODULE_LICENSE("GPL");
1843 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1844 #endif
1845 struct rtl_global_var global_var = {};
1846
1847 int rtl_core_module_init(void)
1848 {
1849 if (rtl_rate_control_register())
1850 printk(KERN_DEBUG "rtl: Unable to register rtl_rc, use default RC !!\n");
1851
1852 /* add proc for debug */
1853 rtl_proc_add_topdir();
1854
1855 /* init some global vars */
1856 INIT_LIST_HEAD(&global_var.glb_priv_list);
1857 spin_lock_init(&global_var.glb_list_lock);
1858
1859 return 0;
1860 }
1861
1862 void rtl_core_module_exit(void)
1863 {
1864 /*RC*/
1865 rtl_rate_control_unregister();
1866
1867 /* add proc for debug */
1868 rtl_proc_remove_topdir();
1869 }
1870
1871 #if 0
1872 module_init(rtl_core_module_init);
1873 module_exit(rtl_core_module_exit);
1874 #endif
Linux kernel - Deliverables
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