?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / net / wireless / rtlwifi / base.c
blob098fc557a88d2a5f2d93639c15ed57bfd1038c58
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 "wifi.h"
34 #include "rc.h"
35 #include "base.h"
36 #include "efuse.h"
37 #include "cam.h"
38 #include "ps.h"
39 #include "regd.h"
40
41 /*
42 *NOTICE!!!: This file will be very big, we hsould
43 *keep it clear under follwing roles:
44 *
45 *This file include follwing 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) ...
58 */
59
60 /*********************************************************
61 *
62 * mac80211 init functions
63 *
64 *********************************************************/
65 static struct ieee80211_channel rtl_channeltable_2g[] = {
66 {.center_freq = 2412, .hw_value = 1,},
67 {.center_freq = 2417, .hw_value = 2,},
68 {.center_freq = 2422, .hw_value = 3,},
69 {.center_freq = 2427, .hw_value = 4,},
70 {.center_freq = 2432, .hw_value = 5,},
71 {.center_freq = 2437, .hw_value = 6,},
72 {.center_freq = 2442, .hw_value = 7,},
73 {.center_freq = 2447, .hw_value = 8,},
74 {.center_freq = 2452, .hw_value = 9,},
75 {.center_freq = 2457, .hw_value = 10,},
76 {.center_freq = 2462, .hw_value = 11,},
77 {.center_freq = 2467, .hw_value = 12,},
78 {.center_freq = 2472, .hw_value = 13,},
79 {.center_freq = 2484, .hw_value = 14,},
80 };
81
82 static struct ieee80211_channel rtl_channeltable_5g[] = {
83 {.center_freq = 5180, .hw_value = 36,},
84 {.center_freq = 5200, .hw_value = 40,},
85 {.center_freq = 5220, .hw_value = 44,},
86 {.center_freq = 5240, .hw_value = 48,},
87 {.center_freq = 5260, .hw_value = 52,},
88 {.center_freq = 5280, .hw_value = 56,},
89 {.center_freq = 5300, .hw_value = 60,},
90 {.center_freq = 5320, .hw_value = 64,},
91 {.center_freq = 5500, .hw_value = 100,},
92 {.center_freq = 5520, .hw_value = 104,},
93 {.center_freq = 5540, .hw_value = 108,},
94 {.center_freq = 5560, .hw_value = 112,},
95 {.center_freq = 5580, .hw_value = 116,},
96 {.center_freq = 5600, .hw_value = 120,},
97 {.center_freq = 5620, .hw_value = 124,},
98 {.center_freq = 5640, .hw_value = 128,},
99 {.center_freq = 5660, .hw_value = 132,},
100 {.center_freq = 5680, .hw_value = 136,},
101 {.center_freq = 5700, .hw_value = 140,},
102 {.center_freq = 5745, .hw_value = 149,},
103 {.center_freq = 5765, .hw_value = 153,},
104 {.center_freq = 5785, .hw_value = 157,},
105 {.center_freq = 5805, .hw_value = 161,},
106 {.center_freq = 5825, .hw_value = 165,},
107 };
108
109 static struct ieee80211_rate rtl_ratetable_2g[] = {
110 {.bitrate = 10, .hw_value = 0x00,},
111 {.bitrate = 20, .hw_value = 0x01,},
112 {.bitrate = 55, .hw_value = 0x02,},
113 {.bitrate = 110, .hw_value = 0x03,},
114 {.bitrate = 60, .hw_value = 0x04,},
115 {.bitrate = 90, .hw_value = 0x05,},
116 {.bitrate = 120, .hw_value = 0x06,},
117 {.bitrate = 180, .hw_value = 0x07,},
118 {.bitrate = 240, .hw_value = 0x08,},
119 {.bitrate = 360, .hw_value = 0x09,},
120 {.bitrate = 480, .hw_value = 0x0a,},
121 {.bitrate = 540, .hw_value = 0x0b,},
122 };
123
124 static struct ieee80211_rate rtl_ratetable_5g[] = {
125 {.bitrate = 60, .hw_value = 0x04,},
126 {.bitrate = 90, .hw_value = 0x05,},
127 {.bitrate = 120, .hw_value = 0x06,},
128 {.bitrate = 180, .hw_value = 0x07,},
129 {.bitrate = 240, .hw_value = 0x08,},
130 {.bitrate = 360, .hw_value = 0x09,},
131 {.bitrate = 480, .hw_value = 0x0a,},
132 {.bitrate = 540, .hw_value = 0x0b,},
133 };
134
135 static const struct ieee80211_supported_band rtl_band_2ghz = {
136 .band = IEEE80211_BAND_2GHZ,
137
138 .channels = rtl_channeltable_2g,
139 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
140
141 .bitrates = rtl_ratetable_2g,
142 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
143
144 .ht_cap = {0},
145 };
146
147 static struct ieee80211_supported_band rtl_band_5ghz = {
148 .band = IEEE80211_BAND_5GHZ,
149
150 .channels = rtl_channeltable_5g,
151 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
152
153 .bitrates = rtl_ratetable_5g,
154 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
155
156 .ht_cap = {0},
157 };
158
159 static const u8 tid_to_ac[] = {
160 2, /* IEEE80211_AC_BE */
161 3, /* IEEE80211_AC_BK */
162 3, /* IEEE80211_AC_BK */
163 2, /* IEEE80211_AC_BE */
164 1, /* IEEE80211_AC_VI */
165 1, /* IEEE80211_AC_VI */
166 0, /* IEEE80211_AC_VO */
167 0, /* IEEE80211_AC_VO */
168 };
169
170 u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid)
171 {
172 return tid_to_ac[tid];
173 }
174
175 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
176 struct ieee80211_sta_ht_cap *ht_cap)
177 {
178 struct rtl_priv *rtlpriv = rtl_priv(hw);
179 struct rtl_phy *rtlphy = &(rtlpriv->phy);
180
181 ht_cap->ht_supported = true;
182 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
183 IEEE80211_HT_CAP_SGI_40 |
184 IEEE80211_HT_CAP_SGI_20 |
185 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
186
187 if (rtlpriv->rtlhal.disable_amsdu_8k)
188 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
189
190 /*
191 *Maximum length of AMPDU that the STA can receive.
192 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
193 */
194 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
195
196 /*Minimum MPDU start spacing , */
197 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
198
199 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
200
201 /*
202 *hw->wiphy->bands[IEEE80211_BAND_2GHZ]
203 *base on ant_num
204 *rx_mask: RX mask
205 *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7
206 *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15
207 *if rx_ant >=3 rx_mask[2]=0xff;
208 *if BW_40 rx_mask[4]=0x01;
209 *highest supported RX rate
210 */
211 if (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) {
212
213 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T2R or 2T2R\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 = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
220 } else if (get_rf_type(rtlphy) == RF_1T1R) {
221
222 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("1T1R\n"));
223
224 ht_cap->mcs.rx_mask[0] = 0xFF;
225 ht_cap->mcs.rx_mask[1] = 0x00;
226 ht_cap->mcs.rx_mask[4] = 0x01;
227
228 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
229 }
230 }
231
232 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
233 {
234 struct rtl_priv *rtlpriv = rtl_priv(hw);
235 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
236 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
237 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
238 struct ieee80211_supported_band *sband;
239
240
241 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
242 BAND_ON_BOTH) {
243 /* 1: 2.4 G bands */
244 /* <1> use mac->bands as mem for hw->wiphy->bands */
245 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
246
247 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
248 * to default value(1T1R) */
249 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
250 sizeof(struct ieee80211_supported_band));
251
252 /* <3> init ht cap base on ant_num */
253 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
254
255 /* <4> set mac->sband to wiphy->sband */
256 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
257
258 /* 2: 5 G bands */
259 /* <1> use mac->bands as mem for hw->wiphy->bands */
260 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
261
262 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
263 * to default value(1T1R) */
264 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
265 sizeof(struct ieee80211_supported_band));
266
267 /* <3> init ht cap base on ant_num */
268 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
269
270 /* <4> set mac->sband to wiphy->sband */
271 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
272 } else {
273 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
274 /* <1> use mac->bands as mem for hw->wiphy->bands */
275 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
276
277 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
278 * to default value(1T1R) */
279 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
280 &rtl_band_2ghz,
281 sizeof(struct ieee80211_supported_band));
282
283 /* <3> init ht cap base on ant_num */
284 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
285
286 /* <4> set mac->sband to wiphy->sband */
287 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
288 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
289 /* <1> use mac->bands as mem for hw->wiphy->bands */
290 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
291
292 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
293 * to default value(1T1R) */
294 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
295 &rtl_band_5ghz,
296 sizeof(struct ieee80211_supported_band));
297
298 /* <3> init ht cap base on ant_num */
299 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
300
301 /* <4> set mac->sband to wiphy->sband */
302 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
303 } else {
304 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
305 ("Err BAND %d\n",
306 rtlhal->current_bandtype));
307 }
308 }
309 /* <5> set hw caps */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_RX_INCLUDES_FCS |
312 IEEE80211_HW_BEACON_FILTER |
313 IEEE80211_HW_AMPDU_AGGREGATION |
314 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
315
316 /* swlps or hwlps has been set in diff chip in init_sw_vars */
317 if (rtlpriv->psc.swctrl_lps)
318 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
319 IEEE80211_HW_PS_NULLFUNC_STACK |
320 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
321 0;
322
323 hw->wiphy->interface_modes =
324 BIT(NL80211_IFTYPE_AP) |
325 BIT(NL80211_IFTYPE_STATION) |
326 BIT(NL80211_IFTYPE_ADHOC);
327
328 hw->wiphy->rts_threshold = 2347;
329
330 hw->queues = AC_MAX;
331 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
332
333 /* TODO: Correct this value for our hw */
334 /* TODO: define these hard code value */
335 hw->channel_change_time = 100;
336 hw->max_listen_interval = 10;
337 hw->max_rate_tries = 4;
338 /* hw->max_rates = 1; */
339 hw->sta_data_size = sizeof(struct rtl_sta_info);
340
341 /* <6> mac address */
342 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
343 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
344 } else {
345 u8 rtlmac[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
346 get_random_bytes((rtlmac + (ETH_ALEN - 1)), 1);
347 SET_IEEE80211_PERM_ADDR(hw, rtlmac);
348 }
349
350 }
351
352 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
353 {
354 struct rtl_priv *rtlpriv = rtl_priv(hw);
355
356 /* <1> timer */
357 init_timer(&rtlpriv->works.watchdog_timer);
358 setup_timer(&rtlpriv->works.watchdog_timer,
359 rtl_watch_dog_timer_callback, (unsigned long)hw);
360
361 /* <2> work queue */
362 rtlpriv->works.hw = hw;
363 rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
364 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
365 (void *)rtl_watchdog_wq_callback);
366 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
367 (void *)rtl_ips_nic_off_wq_callback);
368 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
369 (void *)rtl_swlps_wq_callback);
370 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
371 (void *)rtl_swlps_rfon_wq_callback);
372
373 }
374
375 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
376 {
377 struct rtl_priv *rtlpriv = rtl_priv(hw);
378
379 del_timer_sync(&rtlpriv->works.watchdog_timer);
380
381 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
382 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
383 cancel_delayed_work(&rtlpriv->works.ps_work);
384 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
385 }
386
387 void rtl_init_rfkill(struct ieee80211_hw *hw)
388 {
389 struct rtl_priv *rtlpriv = rtl_priv(hw);
390
391 bool radio_state;
392 bool blocked;
393 u8 valid = 0;
394
395 /*set init state to on */
396 rtlpriv->rfkill.rfkill_state = 1;
397 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
398
399 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
400
401 if (valid) {
402 pr_info("wireless switch is %s\n",
403 rtlpriv->rfkill.rfkill_state ? "on" : "off");
404
405 rtlpriv->rfkill.rfkill_state = radio_state;
406
407 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
408 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
409 }
410
411 wiphy_rfkill_start_polling(hw->wiphy);
412 }
413
414 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
415 {
416 wiphy_rfkill_stop_polling(hw->wiphy);
417 }
418
419 int rtl_init_core(struct ieee80211_hw *hw)
420 {
421 struct rtl_priv *rtlpriv = rtl_priv(hw);
422 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
423
424 /* <1> init mac80211 */
425 _rtl_init_mac80211(hw);
426 rtlmac->hw = hw;
427
428 /* <2> rate control register */
429 hw->rate_control_algorithm = "rtl_rc";
430
431 /*
432 * <3> init CRDA must come after init
433 * mac80211 hw in _rtl_init_mac80211.
434 */
435 if (rtl_regd_init(hw, rtl_reg_notifier)) {
436 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("REGD init failed\n"));
437 return 1;
438 } else {
439 /* CRDA regd hint must after init CRDA */
440 if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) {
441 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
442 ("regulatory_hint fail\n"));
443 }
444 }
445
446 /* <4> locks */
447 mutex_init(&rtlpriv->locks.conf_mutex);
448 spin_lock_init(&rtlpriv->locks.ips_lock);
449 spin_lock_init(&rtlpriv->locks.irq_th_lock);
450 spin_lock_init(&rtlpriv->locks.h2c_lock);
451 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
452 spin_lock_init(&rtlpriv->locks.rf_lock);
453 spin_lock_init(&rtlpriv->locks.lps_lock);
454 spin_lock_init(&rtlpriv->locks.waitq_lock);
455 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
456
457 rtlmac->link_state = MAC80211_NOLINK;
458
459 /* <5> init deferred work */
460 _rtl_init_deferred_work(hw);
461
462 return 0;
463 }
464
465 void rtl_deinit_core(struct ieee80211_hw *hw)
466 {
467 }
468
469 void rtl_init_rx_config(struct ieee80211_hw *hw)
470 {
471 struct rtl_priv *rtlpriv = rtl_priv(hw);
472 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
473
474 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
475 }
476
477 /*********************************************************
478 *
479 * tx information functions
480 *
481 *********************************************************/
482 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
483 struct rtl_tcb_desc *tcb_desc,
484 struct ieee80211_tx_info *info)
485 {
486 struct rtl_priv *rtlpriv = rtl_priv(hw);
487 u8 rate_flag = info->control.rates[0].flags;
488
489 tcb_desc->use_shortpreamble = false;
490
491 /* 1M can only use Long Preamble. 11B spec */
492 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
493 return;
494 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
495 tcb_desc->use_shortpreamble = true;
496
497 return;
498 }
499
500 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
501 struct ieee80211_sta *sta,
502 struct rtl_tcb_desc *tcb_desc,
503 struct ieee80211_tx_info *info)
504 {
505 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
506 u8 rate_flag = info->control.rates[0].flags;
507 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
508 tcb_desc->use_shortgi = false;
509
510 if (sta == NULL)
511 return;
512
513 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
514 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
515
516 if (!(sta->ht_cap.ht_supported))
517 return;
518
519 if (!sgi_40 && !sgi_20)
520 return;
521
522 if (mac->opmode == NL80211_IFTYPE_STATION)
523 bw_40 = mac->bw_40;
524 else if (mac->opmode == NL80211_IFTYPE_AP ||
525 mac->opmode == NL80211_IFTYPE_ADHOC)
526 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
527
528 if (bw_40 && sgi_40)
529 tcb_desc->use_shortgi = true;
530 else if ((bw_40 == false) && sgi_20)
531 tcb_desc->use_shortgi = true;
532
533 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
534 tcb_desc->use_shortgi = false;
535 }
536
537 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
538 struct rtl_tcb_desc *tcb_desc,
539 struct ieee80211_tx_info *info)
540 {
541 struct rtl_priv *rtlpriv = rtl_priv(hw);
542 u8 rate_flag = info->control.rates[0].flags;
543
544 /* Common Settings */
545 tcb_desc->rts_stbc = false;
546 tcb_desc->cts_enable = false;
547 tcb_desc->rts_sc = 0;
548 tcb_desc->rts_bw = false;
549 tcb_desc->rts_use_shortpreamble = false;
550 tcb_desc->rts_use_shortgi = false;
551
552 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
553 /* Use CTS-to-SELF in protection mode. */
554 tcb_desc->rts_enable = true;
555 tcb_desc->cts_enable = true;
556 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
557 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
558 /* Use RTS-CTS in protection mode. */
559 tcb_desc->rts_enable = true;
560 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
561 }
562 }
563
564 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
565 struct ieee80211_sta *sta,
566 struct rtl_tcb_desc *tcb_desc)
567 {
568 struct rtl_priv *rtlpriv = rtl_priv(hw);
569 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
570 struct rtl_sta_info *sta_entry = NULL;
571 u8 ratr_index = 7;
572
573 if (sta) {
574 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
575 ratr_index = sta_entry->ratr_index;
576 }
577 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
578 if (mac->opmode == NL80211_IFTYPE_STATION) {
579 tcb_desc->ratr_index = 0;
580 } else if (mac->opmode == NL80211_IFTYPE_ADHOC) {
581 if (tcb_desc->multicast || tcb_desc->broadcast) {
582 tcb_desc->hw_rate =
583 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
584 tcb_desc->use_driver_rate = 1;
585 } else {
586 /* TODO */
587 }
588 tcb_desc->ratr_index = ratr_index;
589 } else if (mac->opmode == NL80211_IFTYPE_AP) {
590 tcb_desc->ratr_index = ratr_index;
591 }
592 }
593
594 if (rtlpriv->dm.useramask) {
595 /* TODO we will differentiate adhoc and station futrue */
596 if (mac->opmode == NL80211_IFTYPE_STATION) {
597 tcb_desc->mac_id = 0;
598
599 if (mac->mode == WIRELESS_MODE_N_24G)
600 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
601 else if (mac->mode == WIRELESS_MODE_N_5G)
602 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
603 else if (mac->mode & WIRELESS_MODE_G)
604 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
605 else if (mac->mode & WIRELESS_MODE_B)
606 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
607 else if (mac->mode & WIRELESS_MODE_A)
608 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
609 } else if (mac->opmode == NL80211_IFTYPE_AP ||
610 mac->opmode == NL80211_IFTYPE_ADHOC) {
611 if (NULL != sta) {
612 if (sta->aid > 0)
613 tcb_desc->mac_id = sta->aid + 1;
614 else
615 tcb_desc->mac_id = 1;
616 } else {
617 tcb_desc->mac_id = 0;
618 }
619 }
620 }
621
622 }
623
624 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
625 struct ieee80211_sta *sta,
626 struct rtl_tcb_desc *tcb_desc)
627 {
628 struct rtl_priv *rtlpriv = rtl_priv(hw);
629 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
630
631 tcb_desc->packet_bw = false;
632 if (!sta)
633 return;
634 if (mac->opmode == NL80211_IFTYPE_AP ||
635 mac->opmode == NL80211_IFTYPE_ADHOC) {
636 if (!(sta->ht_cap.ht_supported) ||
637 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
638 return;
639 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
640 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
641 return;
642 }
643 if (tcb_desc->multicast || tcb_desc->broadcast)
644 return;
645
646 /*use legency rate, shall use 20MHz */
647 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
648 return;
649
650 tcb_desc->packet_bw = true;
651 }
652
653 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
654 {
655 struct rtl_priv *rtlpriv = rtl_priv(hw);
656 struct rtl_phy *rtlphy = &(rtlpriv->phy);
657 u8 hw_rate;
658
659 if (get_rf_type(rtlphy) == RF_2T2R)
660 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
661 else
662 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
663
664 return hw_rate;
665 }
666
667 /* mac80211's rate_idx is like this:
668 *
669 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
670 *
671 * B/G rate:
672 * (rx_status->flag & RX_FLAG_HT) = 0,
673 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
674 *
675 * N rate:
676 * (rx_status->flag & RX_FLAG_HT) = 1,
677 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
678 *
679 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
680 * A rate:
681 * (rx_status->flag & RX_FLAG_HT) = 0,
682 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
683 *
684 * N rate:
685 * (rx_status->flag & RX_FLAG_HT) = 1,
686 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
687 */
688 int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
689 bool isht, u8 desc_rate, bool first_ampdu)
690 {
691 int rate_idx;
692
693 if (false == isht) {
694 if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) {
695 switch (desc_rate) {
696 case DESC92_RATE1M:
697 rate_idx = 0;
698 break;
699 case DESC92_RATE2M:
700 rate_idx = 1;
701 break;
702 case DESC92_RATE5_5M:
703 rate_idx = 2;
704 break;
705 case DESC92_RATE11M:
706 rate_idx = 3;
707 break;
708 case DESC92_RATE6M:
709 rate_idx = 4;
710 break;
711 case DESC92_RATE9M:
712 rate_idx = 5;
713 break;
714 case DESC92_RATE12M:
715 rate_idx = 6;
716 break;
717 case DESC92_RATE18M:
718 rate_idx = 7;
719 break;
720 case DESC92_RATE24M:
721 rate_idx = 8;
722 break;
723 case DESC92_RATE36M:
724 rate_idx = 9;
725 break;
726 case DESC92_RATE48M:
727 rate_idx = 10;
728 break;
729 case DESC92_RATE54M:
730 rate_idx = 11;
731 break;
732 default:
733 rate_idx = 0;
734 break;
735 }
736 } else {
737 switch (desc_rate) {
738 case DESC92_RATE6M:
739 rate_idx = 0;
740 break;
741 case DESC92_RATE9M:
742 rate_idx = 1;
743 break;
744 case DESC92_RATE12M:
745 rate_idx = 2;
746 break;
747 case DESC92_RATE18M:
748 rate_idx = 3;
749 break;
750 case DESC92_RATE24M:
751 rate_idx = 4;
752 break;
753 case DESC92_RATE36M:
754 rate_idx = 5;
755 break;
756 case DESC92_RATE48M:
757 rate_idx = 6;
758 break;
759 case DESC92_RATE54M:
760 rate_idx = 7;
761 break;
762 default:
763 rate_idx = 0;
764 break;
765 }
766 }
767
768 } else {
769
770 switch (desc_rate) {
771 case DESC92_RATEMCS0:
772 rate_idx = 0;
773 break;
774 case DESC92_RATEMCS1:
775 rate_idx = 1;
776 break;
777 case DESC92_RATEMCS2:
778 rate_idx = 2;
779 break;
780 case DESC92_RATEMCS3:
781 rate_idx = 3;
782 break;
783 case DESC92_RATEMCS4:
784 rate_idx = 4;
785 break;
786 case DESC92_RATEMCS5:
787 rate_idx = 5;
788 break;
789 case DESC92_RATEMCS6:
790 rate_idx = 6;
791 break;
792 case DESC92_RATEMCS7:
793 rate_idx = 7;
794 break;
795 case DESC92_RATEMCS8:
796 rate_idx = 8;
797 break;
798 case DESC92_RATEMCS9:
799 rate_idx = 9;
800 break;
801 case DESC92_RATEMCS10:
802 rate_idx = 10;
803 break;
804 case DESC92_RATEMCS11:
805 rate_idx = 11;
806 break;
807 case DESC92_RATEMCS12:
808 rate_idx = 12;
809 break;
810 case DESC92_RATEMCS13:
811 rate_idx = 13;
812 break;
813 case DESC92_RATEMCS14:
814 rate_idx = 14;
815 break;
816 case DESC92_RATEMCS15:
817 rate_idx = 15;
818 break;
819 default:
820 rate_idx = 0;
821 break;
822 }
823 }
824 return rate_idx;
825 }
826 EXPORT_SYMBOL(rtlwifi_rate_mapping);
827
828 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
829 struct ieee80211_tx_info *info,
830 struct ieee80211_sta *sta,
831 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
832 {
833 struct rtl_priv *rtlpriv = rtl_priv(hw);
834 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
835 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
836 struct ieee80211_rate *txrate;
837 __le16 fc = hdr->frame_control;
838
839 txrate = ieee80211_get_tx_rate(hw, info);
840 tcb_desc->hw_rate = txrate->hw_value;
841
842 if (ieee80211_is_data(fc)) {
843 /*
844 *we set data rate INX 0
845 *in rtl_rc.c if skb is special data or
846 *mgt which need low data rate.
847 */
848
849 /*
850 *So tcb_desc->hw_rate is just used for
851 *special data and mgt frames
852 */
853 if (info->control.rates[0].idx == 0 &&
854 ieee80211_is_nullfunc(fc)) {
855 tcb_desc->use_driver_rate = true;
856 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
857
858 tcb_desc->disable_ratefallback = 1;
859 } else {
860 /*
861 *because hw will nerver use hw_rate
862 *when tcb_desc->use_driver_rate = false
863 *so we never set highest N rate here,
864 *and N rate will all be controlled by FW
865 *when tcb_desc->use_driver_rate = false
866 */
867 if (sta && (sta->ht_cap.ht_supported)) {
868 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
869 } else {
870 if (rtlmac->mode == WIRELESS_MODE_B) {
871 tcb_desc->hw_rate =
872 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
873 } else {
874 tcb_desc->hw_rate =
875 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
876 }
877 }
878 }
879
880 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
881 tcb_desc->multicast = 1;
882 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
883 tcb_desc->broadcast = 1;
884
885 _rtl_txrate_selectmode(hw, sta, tcb_desc);
886 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
887 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
888 _rtl_query_shortgi(hw, sta, tcb_desc, info);
889 _rtl_query_protection_mode(hw, tcb_desc, info);
890 } else {
891 tcb_desc->use_driver_rate = true;
892 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
893 tcb_desc->disable_ratefallback = 1;
894 tcb_desc->mac_id = 0;
895 tcb_desc->packet_bw = false;
896 }
897 }
898 EXPORT_SYMBOL(rtl_get_tcb_desc);
899
900 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
901 {
902 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
903 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
904 struct rtl_priv *rtlpriv = rtl_priv(hw);
905 __le16 fc = hdr->frame_control;
906 u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
907 u8 category;
908
909 if (!ieee80211_is_action(fc))
910 return true;
911
912 category = *act;
913 act++;
914 switch (category) {
915 case ACT_CAT_BA:
916 switch (*act) {
917 case ACT_ADDBAREQ:
918 if (mac->act_scanning)
919 return false;
920
921 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
922 ("%s ACT_ADDBAREQ From :%pM\n",
923 is_tx ? "Tx" : "Rx", hdr->addr2));
924 break;
925 case ACT_ADDBARSP:
926 RT_TRACE(rtlpriv, (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(rtlpriv, (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 __le16 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 return false;
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(rtlpriv, (COMP_SEND | COMP_RECV),
975 DBG_DMESG, ("dhcp %s !!\n",
976 (is_tx) ? "Tx" : "Rx"));
977
978 if (is_tx) {
979 rtl_lps_leave(hw);
980 ppsc->last_delaylps_stamp_jiffies =
981 jiffies;
982 }
983
984 return true;
985 }
986 }
987 } else if (ETH_P_ARP == ether_type) {
988 if (is_tx) {
989 rtl_lps_leave(hw);
990 ppsc->last_delaylps_stamp_jiffies = jiffies;
991 }
992
993 return true;
994 } else if (ETH_P_PAE == ether_type) {
995 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
996 ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));
997
998 if (is_tx) {
999 rtl_lps_leave(hw);
1000 ppsc->last_delaylps_stamp_jiffies = jiffies;
1001 }
1002
1003 return true;
1004 } else if (ETH_P_IPV6 == ether_type) {
1005 /* IPv6 */
1006 return true;
1007 }
1008
1009 return false;
1010 }
1011
1012 /*********************************************************
1013 *
1014 * functions called by core.c
1015 *
1016 *********************************************************/
1017 int rtl_tx_agg_start(struct ieee80211_hw *hw,
1018 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1019 {
1020 struct rtl_priv *rtlpriv = rtl_priv(hw);
1021 struct rtl_tid_data *tid_data;
1022 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1023 struct rtl_sta_info *sta_entry = NULL;
1024
1025 if (sta == NULL)
1026 return -EINVAL;
1027
1028 if (unlikely(tid >= MAX_TID_COUNT))
1029 return -EINVAL;
1030
1031 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1032 if (!sta_entry)
1033 return -ENXIO;
1034 tid_data = &sta_entry->tids[tid];
1035
1036 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1037 ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1038 tid_data->seq_number));
1039
1040 *ssn = tid_data->seq_number;
1041 tid_data->agg.agg_state = RTL_AGG_START;
1042
1043 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1044
1045 return 0;
1046 }
1047
1048 int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1049 struct ieee80211_sta *sta, u16 tid)
1050 {
1051 struct rtl_priv *rtlpriv = rtl_priv(hw);
1052 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1053 struct rtl_sta_info *sta_entry = NULL;
1054
1055 if (sta == NULL)
1056 return -EINVAL;
1057
1058 if (!sta->addr) {
1059 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1060 return -EINVAL;
1061 }
1062
1063 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1064 ("on ra = %pM tid = %d\n", sta->addr, tid));
1065
1066 if (unlikely(tid >= MAX_TID_COUNT))
1067 return -EINVAL;
1068
1069 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1070 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1071
1072 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
1073
1074 return 0;
1075 }
1076
1077 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1078 struct ieee80211_sta *sta, u16 tid)
1079 {
1080 struct rtl_priv *rtlpriv = rtl_priv(hw);
1081 struct rtl_sta_info *sta_entry = NULL;
1082
1083 if (sta == NULL)
1084 return -EINVAL;
1085
1086 if (!sta->addr) {
1087 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
1088 return -EINVAL;
1089 }
1090
1091 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1092 ("on ra = %pM tid = %d\n", sta->addr, tid));
1093
1094 if (unlikely(tid >= MAX_TID_COUNT))
1095 return -EINVAL;
1096
1097 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1098 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1099
1100 return 0;
1101 }
1102
1103 /*********************************************************
1104 *
1105 * wq & timer callback functions
1106 *
1107 *********************************************************/
1108 void rtl_watchdog_wq_callback(void *data)
1109 {
1110 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1111 struct rtl_works,
1112 watchdog_wq);
1113 struct ieee80211_hw *hw = rtlworks->hw;
1114 struct rtl_priv *rtlpriv = rtl_priv(hw);
1115 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1116 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1117 bool busytraffic = false;
1118 bool higher_busytraffic = false;
1119 bool higher_busyrxtraffic = false;
1120 u8 idx, tid;
1121 u32 rx_cnt_inp4eriod = 0;
1122 u32 tx_cnt_inp4eriod = 0;
1123 u32 aver_rx_cnt_inperiod = 0;
1124 u32 aver_tx_cnt_inperiod = 0;
1125 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1126 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1127 bool enter_ps = false;
1128
1129 if (is_hal_stop(rtlhal))
1130 return;
1131
1132 /* <1> Determine if action frame is allowed */
1133 if (mac->link_state > MAC80211_NOLINK) {
1134 if (mac->cnt_after_linked < 20)
1135 mac->cnt_after_linked++;
1136 } else {
1137 mac->cnt_after_linked = 0;
1138 }
1139
1140 /*
1141 *<3> to check if traffic busy, if
1142 * busytraffic we don't change channel
1143 */
1144 if (mac->link_state >= MAC80211_LINKED) {
1145
1146 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1147 for (idx = 0; idx <= 2; idx++) {
1148 rtlpriv->link_info.num_rx_in4period[idx] =
1149 rtlpriv->link_info.num_rx_in4period[idx + 1];
1150 rtlpriv->link_info.num_tx_in4period[idx] =
1151 rtlpriv->link_info.num_tx_in4period[idx + 1];
1152 }
1153 rtlpriv->link_info.num_rx_in4period[3] =
1154 rtlpriv->link_info.num_rx_inperiod;
1155 rtlpriv->link_info.num_tx_in4period[3] =
1156 rtlpriv->link_info.num_tx_inperiod;
1157 for (idx = 0; idx <= 3; idx++) {
1158 rx_cnt_inp4eriod +=
1159 rtlpriv->link_info.num_rx_in4period[idx];
1160 tx_cnt_inp4eriod +=
1161 rtlpriv->link_info.num_tx_in4period[idx];
1162 }
1163 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1164 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1165
1166 /* (2) check traffic busy */
1167 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
1168 busytraffic = true;
1169
1170 /* Higher Tx/Rx data. */
1171 if (aver_rx_cnt_inperiod > 4000 ||
1172 aver_tx_cnt_inperiod > 4000) {
1173 higher_busytraffic = true;
1174
1175 /* Extremely high Rx data. */
1176 if (aver_rx_cnt_inperiod > 5000)
1177 higher_busyrxtraffic = true;
1178 }
1179
1180 /* check every tid's tx traffic */
1181 for (tid = 0; tid <= 7; tid++) {
1182 for (idx = 0; idx <= 2; idx++)
1183 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1184 rtlpriv->link_info.tidtx_in4period[tid]
1185 [idx + 1];
1186 rtlpriv->link_info.tidtx_in4period[tid][3] =
1187 rtlpriv->link_info.tidtx_inperiod[tid];
1188
1189 for (idx = 0; idx <= 3; idx++)
1190 tidtx_inp4eriod[tid] +=
1191 rtlpriv->link_info.tidtx_in4period[tid][idx];
1192 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1193 if (aver_tidtx_inperiod[tid] > 5000)
1194 rtlpriv->link_info.higher_busytxtraffic[tid] =
1195 true;
1196 else
1197 rtlpriv->link_info.higher_busytxtraffic[tid] =
1198 false;
1199 }
1200
1201 if (((rtlpriv->link_info.num_rx_inperiod +
1202 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1203 (rtlpriv->link_info.num_rx_inperiod > 2))
1204 enter_ps = false;
1205 else
1206 enter_ps = true;
1207
1208 /* LeisurePS only work in infra mode. */
1209 if (enter_ps)
1210 rtl_lps_enter(hw);
1211 else
1212 rtl_lps_leave(hw);
1213 }
1214
1215 rtlpriv->link_info.num_rx_inperiod = 0;
1216 rtlpriv->link_info.num_tx_inperiod = 0;
1217 for (tid = 0; tid <= 7; tid++)
1218 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1219
1220 rtlpriv->link_info.busytraffic = busytraffic;
1221 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1222 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1223
1224 /* <3> DM */
1225 rtlpriv->cfg->ops->dm_watchdog(hw);
1226 }
1227
1228 void rtl_watch_dog_timer_callback(unsigned long data)
1229 {
1230 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1231 struct rtl_priv *rtlpriv = rtl_priv(hw);
1232
1233 queue_delayed_work(rtlpriv->works.rtl_wq,
1234 &rtlpriv->works.watchdog_wq, 0);
1235
1236 mod_timer(&rtlpriv->works.watchdog_timer,
1237 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1238 }
1239
1240 /*********************************************************
1241 *
1242 * frame process functions
1243 *
1244 *********************************************************/
1245 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1246 {
1247 struct ieee80211_mgmt *mgmt = (void *)data;
1248 u8 *pos, *end;
1249
1250 pos = (u8 *)mgmt->u.beacon.variable;
1251 end = data + len;
1252 while (pos < end) {
1253 if (pos + 2 + pos[1] > end)
1254 return NULL;
1255
1256 if (pos[0] == ie)
1257 return pos;
1258
1259 pos += 2 + pos[1];
1260 }
1261 return NULL;
1262 }
1263
1264 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1265 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1266 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1267 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1268 {
1269 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1270 struct sk_buff *skb;
1271 struct ieee80211_mgmt *action_frame;
1272
1273 /* 27 = header + category + action + smps mode */
1274 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1275 if (!skb)
1276 return NULL;
1277
1278 skb_reserve(skb, hw->extra_tx_headroom);
1279 action_frame = (void *)skb_put(skb, 27);
1280 memset(action_frame, 0, 27);
1281 memcpy(action_frame->da, da, ETH_ALEN);
1282 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1283 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1284 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1285 IEEE80211_STYPE_ACTION);
1286 action_frame->u.action.category = WLAN_CATEGORY_HT;
1287 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1288 switch (smps) {
1289 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1290 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1291 WARN_ON(1);
1292 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1293 action_frame->u.action.u.ht_smps.smps_control =
1294 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1295 break;
1296 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1297 action_frame->u.action.u.ht_smps.smps_control =
1298 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1299 break;
1300 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1301 action_frame->u.action.u.ht_smps.smps_control =
1302 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1303 break;
1304 }
1305
1306 return skb;
1307 }
1308
1309 int rtl_send_smps_action(struct ieee80211_hw *hw,
1310 struct ieee80211_sta *sta, u8 *da, u8 *bssid,
1311 enum ieee80211_smps_mode smps)
1312 {
1313 struct rtl_priv *rtlpriv = rtl_priv(hw);
1314 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1315 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1316 struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
1317 struct rtl_tcb_desc tcb_desc;
1318 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1319
1320 if (rtlpriv->mac80211.act_scanning)
1321 goto err_free;
1322
1323 if (!sta)
1324 goto err_free;
1325
1326 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1327 goto err_free;
1328
1329 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1330 goto err_free;
1331
1332 /* this is a type = mgmt * stype = action frame */
1333 if (skb) {
1334 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1335 struct rtl_sta_info *sta_entry =
1336 (struct rtl_sta_info *) sta->drv_priv;
1337 sta_entry->mimo_ps = smps;
1338 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
1339
1340 info->control.rates[0].idx = 0;
1341 info->control.sta = sta;
1342 info->band = hw->conf.channel->band;
1343 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
1344 }
1345 err_free:
1346 return 0;
1347 }
1348
1349 /*********************************************************
1350 *
1351 * IOT functions
1352 *
1353 *********************************************************/
1354 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1355 struct octet_string vendor_ie)
1356 {
1357 struct rtl_priv *rtlpriv = rtl_priv(hw);
1358 bool matched = false;
1359 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1360 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1361 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1362 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1363 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1364 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1365 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1366 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1367
1368 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1369 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1370 rtlpriv->mac80211.vendor = PEER_ATH;
1371 matched = true;
1372 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1373 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1374 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1375 rtlpriv->mac80211.vendor = PEER_BROAD;
1376 matched = true;
1377 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1378 rtlpriv->mac80211.vendor = PEER_RAL;
1379 matched = true;
1380 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1381 rtlpriv->mac80211.vendor = PEER_CISCO;
1382 matched = true;
1383 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1384 rtlpriv->mac80211.vendor = PEER_MARV;
1385 matched = true;
1386 }
1387
1388 return matched;
1389 }
1390
1391 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1392 unsigned int len)
1393 {
1394 struct ieee80211_mgmt *mgmt = (void *)data;
1395 struct octet_string vendor_ie;
1396 u8 *pos, *end;
1397
1398 pos = (u8 *)mgmt->u.beacon.variable;
1399 end = data + len;
1400 while (pos < end) {
1401 if (pos[0] == 221) {
1402 vendor_ie.length = pos[1];
1403 vendor_ie.octet = &pos[2];
1404 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1405 return true;
1406 }
1407
1408 if (pos + 2 + pos[1] > end)
1409 return false;
1410
1411 pos += 2 + pos[1];
1412 }
1413 return false;
1414 }
1415
1416 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1417 {
1418 struct rtl_priv *rtlpriv = rtl_priv(hw);
1419 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1420 struct ieee80211_hdr *hdr = (void *)data;
1421 u32 vendor = PEER_UNKNOWN;
1422
1423 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1424 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1425 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1426 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1427 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1428 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1429 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1430 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1431 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1432 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1433 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1434 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1435 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1436 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1437 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1438 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1439
1440 if (mac->opmode != NL80211_IFTYPE_STATION)
1441 return;
1442
1443 if (mac->link_state == MAC80211_NOLINK) {
1444 mac->vendor = PEER_UNKNOWN;
1445 return;
1446 }
1447
1448 if (mac->cnt_after_linked > 2)
1449 return;
1450
1451 /* check if this really is a beacon */
1452 if (!ieee80211_is_beacon(hdr->frame_control))
1453 return;
1454
1455 /* min. beacon length + FCS_LEN */
1456 if (len <= 40 + FCS_LEN)
1457 return;
1458
1459 /* and only beacons from the associated BSSID, please */
1460 if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
1461 return;
1462
1463 if (rtl_find_221_ie(hw, data, len))
1464 vendor = mac->vendor;
1465
1466 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1467 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1468 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1469 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1470 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1471 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1472 vendor == PEER_ATH) {
1473 vendor = PEER_ATH;
1474 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
1475 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1476 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1477 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1478 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1479 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1480 vendor == PEER_RAL) {
1481 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ral findn\n"));
1482 vendor = PEER_RAL;
1483 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1484 vendor == PEER_CISCO) {
1485 vendor = PEER_CISCO;
1486 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
1487 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1488 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1489 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1490 vendor == PEER_BROAD) {
1491 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
1492 vendor = PEER_BROAD;
1493 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1494 vendor == PEER_MARV) {
1495 vendor = PEER_MARV;
1496 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
1497 }
1498
1499 mac->vendor = vendor;
1500 }
1501
1502 /*********************************************************
1503 *
1504 * sysfs functions
1505 *
1506 *********************************************************/
1507 static ssize_t rtl_show_debug_level(struct device *d,
1508 struct device_attribute *attr, char *buf)
1509 {
1510 struct ieee80211_hw *hw = dev_get_drvdata(d);
1511 struct rtl_priv *rtlpriv = rtl_priv(hw);
1512
1513 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1514 }
1515
1516 static ssize_t rtl_store_debug_level(struct device *d,
1517 struct device_attribute *attr,
1518 const char *buf, size_t count)
1519 {
1520 struct ieee80211_hw *hw = dev_get_drvdata(d);
1521 struct rtl_priv *rtlpriv = rtl_priv(hw);
1522 unsigned long val;
1523 int ret;
1524
1525 ret = strict_strtoul(buf, 0, &val);
1526 if (ret) {
1527 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1528 } else {
1529 rtlpriv->dbg.global_debuglevel = val;
1530 printk(KERN_DEBUG "debuglevel:%x\n",
1531 rtlpriv->dbg.global_debuglevel);
1532 }
1533
1534 return strnlen(buf, count);
1535 }
1536
1537 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1538 rtl_show_debug_level, rtl_store_debug_level);
1539
1540 static struct attribute *rtl_sysfs_entries[] = {
1541
1542 &dev_attr_debug_level.attr,
1543
1544 NULL
1545 };
1546
1547 /*
1548 * "name" is folder name witch will be
1549 * put in device directory like :
1550 * sys/devices/pci0000:00/0000:00:1c.4/
1551 * 0000:06:00.0/rtl_sysfs
1552 */
1553 struct attribute_group rtl_attribute_group = {
1554 .name = "rtlsysfs",
1555 .attrs = rtl_sysfs_entries,
1556 };
1557
1558 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1559 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1560 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1561 MODULE_LICENSE("GPL");
1562 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1563
1564 static int __init rtl_core_module_init(void)
1565 {
1566 if (rtl_rate_control_register())
1567 pr_err("Unable to register rtl_rc, use default RC !!\n");
1568
1569 return 0;
1570 }
1571
1572 static void __exit rtl_core_module_exit(void)
1573 {
1574 /*RC*/
1575 rtl_rate_control_unregister();
1576 }
1577
1578 module_init(rtl_core_module_init);
1579 module_exit(rtl_core_module_exit);
linux-next