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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 *********************************************************/
65static 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
82static 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
109static 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
124static 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
135static 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
147static 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
159static 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
170u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid)
171{
172 return tid_to_ac[tid];
173}
174
175static 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
232static 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
352static 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
375void 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
387void 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
414void rtl_deinit_rfkill(struct ieee80211_hw *hw)
415{
416 wiphy_rfkill_stop_polling(hw->wiphy);
417}
418
419int 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
465void rtl_deinit_core(struct ieee80211_hw *hw)
466{
467}
468
469void 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 *********************************************************/
482static 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
500static 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
537static 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
564static 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
624static 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
653static 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
667void rtl_get_tcb_desc(struct ieee80211_hw *hw,
668 struct ieee80211_tx_info *info,
669 struct ieee80211_sta *sta,
670 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
671{
672 struct rtl_priv *rtlpriv = rtl_priv(hw);
673 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
674 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
675 struct ieee80211_rate *txrate;
676 __le16 fc = hdr->frame_control;
677
678 txrate = ieee80211_get_tx_rate(hw, info);
679 tcb_desc->hw_rate = txrate->hw_value;
680
681 if (ieee80211_is_data(fc)) {
682 /*
683 *we set data rate INX 0
684 *in rtl_rc.c if skb is special data or
685 *mgt which need low data rate.
686 */
687
688 /*
689 *So tcb_desc->hw_rate is just used for
690 *special data and mgt frames
691 */
692 if (info->control.rates[0].idx == 0 &&
693 ieee80211_is_nullfunc(fc)) {
694 tcb_desc->use_driver_rate = true;
695 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
696
697 tcb_desc->disable_ratefallback = 1;
698 } else {
699 /*
700 *because hw will nerver use hw_rate
701 *when tcb_desc->use_driver_rate = false
702 *so we never set highest N rate here,
703 *and N rate will all be controlled by FW
704 *when tcb_desc->use_driver_rate = false
705 */
706 if (sta && (sta->ht_cap.ht_supported)) {
707 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
708 } else {
709 if (rtlmac->mode == WIRELESS_MODE_B) {
710 tcb_desc->hw_rate =
711 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
712 } else {
713 tcb_desc->hw_rate =
714 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
715 }
716 }
717 }
718
719 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
720 tcb_desc->multicast = 1;
721 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
722 tcb_desc->broadcast = 1;
723
724 _rtl_txrate_selectmode(hw, sta, tcb_desc);
725 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
726 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
727 _rtl_query_shortgi(hw, sta, tcb_desc, info);
728 _rtl_query_protection_mode(hw, tcb_desc, info);
729 } else {
730 tcb_desc->use_driver_rate = true;
731 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
732 tcb_desc->disable_ratefallback = 1;
733 tcb_desc->mac_id = 0;
734 tcb_desc->packet_bw = false;
735 }
736}
737EXPORT_SYMBOL(rtl_get_tcb_desc);
738
739bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
740{
741 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
742 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
743 struct rtl_priv *rtlpriv = rtl_priv(hw);
744 __le16 fc = hdr->frame_control;
745 u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
746 u8 category;
747
748 if (!ieee80211_is_action(fc))
749 return true;
750
751 category = *act;
752 act++;
753 switch (category) {
754 case ACT_CAT_BA:
755 switch (*act) {
756 case ACT_ADDBAREQ:
757 if (mac->act_scanning)
758 return false;
759
760 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
761 ("%s ACT_ADDBAREQ From :%pM\n",
762 is_tx ? "Tx" : "Rx", hdr->addr2));
763 break;
764 case ACT_ADDBARSP:
765 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
766 ("%s ACT_ADDBARSP From :%pM\n",
767 is_tx ? "Tx" : "Rx", hdr->addr2));
768 break;
769 case ACT_DELBA:
770 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
771 ("ACT_ADDBADEL From :%pM\n", hdr->addr2));
772 break;
773 }
774 break;
775 default:
776 break;
777 }
778
779 return true;
780}
781
782/*should call before software enc*/
783u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
784{
785 struct rtl_priv *rtlpriv = rtl_priv(hw);
786 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
787 __le16 fc = rtl_get_fc(skb);
788 u16 ether_type;
789 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
790 const struct iphdr *ip;
791
792 if (!ieee80211_is_data(fc))
793 return false;
794
795
796 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
797 SNAP_SIZE + PROTOC_TYPE_SIZE);
798 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
799 /* ether_type = ntohs(ether_type); */
800
801 if (ETH_P_IP == ether_type) {
802 if (IPPROTO_UDP == ip->protocol) {
803 struct udphdr *udp = (struct udphdr *)((u8 *) ip +
804 (ip->ihl << 2));
805 if (((((u8 *) udp)[1] == 68) &&
806 (((u8 *) udp)[3] == 67)) ||
807 ((((u8 *) udp)[1] == 67) &&
808 (((u8 *) udp)[3] == 68))) {
809 /*
810 * 68 : UDP BOOTP client
811 * 67 : UDP BOOTP server
812 */
813 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
814 DBG_DMESG, ("dhcp %s !!\n",
815 (is_tx) ? "Tx" : "Rx"));
816
817 if (is_tx) {
818 rtl_lps_leave(hw);
819 ppsc->last_delaylps_stamp_jiffies =
820 jiffies;
821 }
822
823 return true;
824 }
825 }
826 } else if (ETH_P_ARP == ether_type) {
827 if (is_tx) {
828 rtl_lps_leave(hw);
829 ppsc->last_delaylps_stamp_jiffies = jiffies;
830 }
831
832 return true;
833 } else if (ETH_P_PAE == ether_type) {
834 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
835 ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"));
836
837 if (is_tx) {
838 rtl_lps_leave(hw);
839 ppsc->last_delaylps_stamp_jiffies = jiffies;
840 }
841
842 return true;
843 } else if (ETH_P_IPV6 == ether_type) {
844 /* IPv6 */
845 return true;
846 }
847
848 return false;
849}
850
851/*********************************************************
852 *
853 * functions called by core.c
854 *
855 *********************************************************/
856int rtl_tx_agg_start(struct ieee80211_hw *hw,
857 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
858{
859 struct rtl_priv *rtlpriv = rtl_priv(hw);
860 struct rtl_tid_data *tid_data;
861 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
862 struct rtl_sta_info *sta_entry = NULL;
863
864 if (sta == NULL)
865 return -EINVAL;
866
867 if (unlikely(tid >= MAX_TID_COUNT))
868 return -EINVAL;
869
870 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
871 if (!sta_entry)
872 return -ENXIO;
873 tid_data = &sta_entry->tids[tid];
874
875 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
876 ("on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
877 tid_data->seq_number));
878
879 *ssn = tid_data->seq_number;
880 tid_data->agg.agg_state = RTL_AGG_START;
881
882 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
883
884 return 0;
885}
886
887int rtl_tx_agg_stop(struct ieee80211_hw *hw,
888 struct ieee80211_sta *sta, u16 tid)
889{
890 struct rtl_priv *rtlpriv = rtl_priv(hw);
891 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
892 struct rtl_sta_info *sta_entry = NULL;
893
894 if (sta == NULL)
895 return -EINVAL;
896
897 if (!sta->addr) {
898 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
899 return -EINVAL;
900 }
901
902 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
903 ("on ra = %pM tid = %d\n", sta->addr, tid));
904
905 if (unlikely(tid >= MAX_TID_COUNT))
906 return -EINVAL;
907
908 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
909 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
910
911 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
912
913 return 0;
914}
915
916int rtl_tx_agg_oper(struct ieee80211_hw *hw,
917 struct ieee80211_sta *sta, u16 tid)
918{
919 struct rtl_priv *rtlpriv = rtl_priv(hw);
920 struct rtl_sta_info *sta_entry = NULL;
921
922 if (sta == NULL)
923 return -EINVAL;
924
925 if (!sta->addr) {
926 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("ra = NULL\n"));
927 return -EINVAL;
928 }
929
930 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
931 ("on ra = %pM tid = %d\n", sta->addr, tid));
932
933 if (unlikely(tid >= MAX_TID_COUNT))
934 return -EINVAL;
935
936 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
937 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
938
939 return 0;
940}
941
942/*********************************************************
943 *
944 * wq & timer callback functions
945 *
946 *********************************************************/
947void rtl_watchdog_wq_callback(void *data)
948{
949 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
950 struct rtl_works,
951 watchdog_wq);
952 struct ieee80211_hw *hw = rtlworks->hw;
953 struct rtl_priv *rtlpriv = rtl_priv(hw);
954 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
955 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
956 bool busytraffic = false;
957 bool higher_busytraffic = false;
958 bool higher_busyrxtraffic = false;
959 u8 idx, tid;
960 u32 rx_cnt_inp4eriod = 0;
961 u32 tx_cnt_inp4eriod = 0;
962 u32 aver_rx_cnt_inperiod = 0;
963 u32 aver_tx_cnt_inperiod = 0;
964 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
965 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
966 bool enter_ps = false;
967
968 if (is_hal_stop(rtlhal))
969 return;
970
971 /* <1> Determine if action frame is allowed */
972 if (mac->link_state > MAC80211_NOLINK) {
973 if (mac->cnt_after_linked < 20)
974 mac->cnt_after_linked++;
975 } else {
976 mac->cnt_after_linked = 0;
977 }
978
979 /*
980 *<3> to check if traffic busy, if
981 * busytraffic we don't change channel
982 */
983 if (mac->link_state >= MAC80211_LINKED) {
984
985 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
986 for (idx = 0; idx <= 2; idx++) {
987 rtlpriv->link_info.num_rx_in4period[idx] =
988 rtlpriv->link_info.num_rx_in4period[idx + 1];
989 rtlpriv->link_info.num_tx_in4period[idx] =
990 rtlpriv->link_info.num_tx_in4period[idx + 1];
991 }
992 rtlpriv->link_info.num_rx_in4period[3] =
993 rtlpriv->link_info.num_rx_inperiod;
994 rtlpriv->link_info.num_tx_in4period[3] =
995 rtlpriv->link_info.num_tx_inperiod;
996 for (idx = 0; idx <= 3; idx++) {
997 rx_cnt_inp4eriod +=
998 rtlpriv->link_info.num_rx_in4period[idx];
999 tx_cnt_inp4eriod +=
1000 rtlpriv->link_info.num_tx_in4period[idx];
1001 }
1002 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1003 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1004
1005 /* (2) check traffic busy */
1006 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
1007 busytraffic = true;
1008
1009 /* Higher Tx/Rx data. */
1010 if (aver_rx_cnt_inperiod > 4000 ||
1011 aver_tx_cnt_inperiod > 4000) {
1012 higher_busytraffic = true;
1013
1014 /* Extremely high Rx data. */
1015 if (aver_rx_cnt_inperiod > 5000)
1016 higher_busyrxtraffic = true;
1017 }
1018
1019 /* check every tid's tx traffic */
1020 for (tid = 0; tid <= 7; tid++) {
1021 for (idx = 0; idx <= 2; idx++)
1022 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1023 rtlpriv->link_info.tidtx_in4period[tid]
1024 [idx + 1];
1025 rtlpriv->link_info.tidtx_in4period[tid][3] =
1026 rtlpriv->link_info.tidtx_inperiod[tid];
1027
1028 for (idx = 0; idx <= 3; idx++)
1029 tidtx_inp4eriod[tid] +=
1030 rtlpriv->link_info.tidtx_in4period[tid][idx];
1031 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1032 if (aver_tidtx_inperiod[tid] > 5000)
1033 rtlpriv->link_info.higher_busytxtraffic[tid] =
1034 true;
1035 else
1036 rtlpriv->link_info.higher_busytxtraffic[tid] =
1037 false;
1038 }
1039
1040 if (((rtlpriv->link_info.num_rx_inperiod +
1041 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1042 (rtlpriv->link_info.num_rx_inperiod > 2))
1043 enter_ps = false;
1044 else
1045 enter_ps = true;
1046
1047 /* LeisurePS only work in infra mode. */
1048 if (enter_ps)
1049 rtl_lps_enter(hw);
1050 else
1051 rtl_lps_leave(hw);
1052 }
1053
1054 rtlpriv->link_info.num_rx_inperiod = 0;
1055 rtlpriv->link_info.num_tx_inperiod = 0;
1056 for (tid = 0; tid <= 7; tid++)
1057 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1058
1059 rtlpriv->link_info.busytraffic = busytraffic;
1060 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1061 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1062
1063 /* <3> DM */
1064 rtlpriv->cfg->ops->dm_watchdog(hw);
1065}
1066
1067void rtl_watch_dog_timer_callback(unsigned long data)
1068{
1069 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1070 struct rtl_priv *rtlpriv = rtl_priv(hw);
1071
1072 queue_delayed_work(rtlpriv->works.rtl_wq,
1073 &rtlpriv->works.watchdog_wq, 0);
1074
1075 mod_timer(&rtlpriv->works.watchdog_timer,
1076 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1077}
1078
1079/*********************************************************
1080 *
1081 * frame process functions
1082 *
1083 *********************************************************/
1084u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1085{
1086 struct ieee80211_mgmt *mgmt = (void *)data;
1087 u8 *pos, *end;
1088
1089 pos = (u8 *)mgmt->u.beacon.variable;
1090 end = data + len;
1091 while (pos < end) {
1092 if (pos + 2 + pos[1] > end)
1093 return NULL;
1094
1095 if (pos[0] == ie)
1096 return pos;
1097
1098 pos += 2 + pos[1];
1099 }
1100 return NULL;
1101}
1102
1103/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1104/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1105static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1106 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1107{
1108 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1109 struct sk_buff *skb;
1110 struct ieee80211_mgmt *action_frame;
1111
1112 /* 27 = header + category + action + smps mode */
1113 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1114 if (!skb)
1115 return NULL;
1116
1117 skb_reserve(skb, hw->extra_tx_headroom);
1118 action_frame = (void *)skb_put(skb, 27);
1119 memset(action_frame, 0, 27);
1120 memcpy(action_frame->da, da, ETH_ALEN);
1121 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1122 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1123 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1124 IEEE80211_STYPE_ACTION);
1125 action_frame->u.action.category = WLAN_CATEGORY_HT;
1126 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1127 switch (smps) {
1128 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1129 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1130 WARN_ON(1);
1131 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1132 action_frame->u.action.u.ht_smps.smps_control =
1133 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1134 break;
1135 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1136 action_frame->u.action.u.ht_smps.smps_control =
1137 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1138 break;
1139 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1140 action_frame->u.action.u.ht_smps.smps_control =
1141 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1142 break;
1143 }
1144
1145 return skb;
1146}
1147
1148int rtl_send_smps_action(struct ieee80211_hw *hw,
1149 struct ieee80211_sta *sta, u8 *da, u8 *bssid,
1150 enum ieee80211_smps_mode smps)
1151{
1152 struct rtl_priv *rtlpriv = rtl_priv(hw);
1153 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1154 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1155 struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
1156 struct rtl_tcb_desc tcb_desc;
1157 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1158
1159 if (rtlpriv->mac80211.act_scanning)
1160 goto err_free;
1161
1162 if (!sta)
1163 goto err_free;
1164
1165 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1166 goto err_free;
1167
1168 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1169 goto err_free;
1170
1171 /* this is a type = mgmt * stype = action frame */
1172 if (skb) {
1173 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1174 struct rtl_sta_info *sta_entry =
1175 (struct rtl_sta_info *) sta->drv_priv;
1176 sta_entry->mimo_ps = smps;
1177 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
1178
1179 info->control.rates[0].idx = 0;
1180 info->control.sta = sta;
1181 info->band = hw->conf.channel->band;
1182 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
1183 }
1184err_free:
1185 return 0;
1186}
1187
1188/*********************************************************
1189 *
1190 * IOT functions
1191 *
1192 *********************************************************/
1193static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1194 struct octet_string vendor_ie)
1195{
1196 struct rtl_priv *rtlpriv = rtl_priv(hw);
1197 bool matched = false;
1198 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1199 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1200 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1201 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1202 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1203 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1204 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1205 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1206
1207 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1208 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1209 rtlpriv->mac80211.vendor = PEER_ATH;
1210 matched = true;
1211 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1212 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1213 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1214 rtlpriv->mac80211.vendor = PEER_BROAD;
1215 matched = true;
1216 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1217 rtlpriv->mac80211.vendor = PEER_RAL;
1218 matched = true;
1219 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1220 rtlpriv->mac80211.vendor = PEER_CISCO;
1221 matched = true;
1222 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1223 rtlpriv->mac80211.vendor = PEER_MARV;
1224 matched = true;
1225 }
1226
1227 return matched;
1228}
1229
1230static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
1231 unsigned int len)
1232{
1233 struct ieee80211_mgmt *mgmt = (void *)data;
1234 struct octet_string vendor_ie;
1235 u8 *pos, *end;
1236
1237 pos = (u8 *)mgmt->u.beacon.variable;
1238 end = data + len;
1239 while (pos < end) {
1240 if (pos[0] == 221) {
1241 vendor_ie.length = pos[1];
1242 vendor_ie.octet = &pos[2];
1243 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1244 return true;
1245 }
1246
1247 if (pos + 2 + pos[1] > end)
1248 return false;
1249
1250 pos += 2 + pos[1];
1251 }
1252 return false;
1253}
1254
1255void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1256{
1257 struct rtl_priv *rtlpriv = rtl_priv(hw);
1258 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1259 struct ieee80211_hdr *hdr = (void *)data;
1260 u32 vendor = PEER_UNKNOWN;
1261
1262 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1263 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1264 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1265 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1266 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1267 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1268 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1269 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1270 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1271 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1272 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1273 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1274 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1275 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1276 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1277 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1278
1279 if (mac->opmode != NL80211_IFTYPE_STATION)
1280 return;
1281
1282 if (mac->link_state == MAC80211_NOLINK) {
1283 mac->vendor = PEER_UNKNOWN;
1284 return;
1285 }
1286
1287 if (mac->cnt_after_linked > 2)
1288 return;
1289
1290 /* check if this really is a beacon */
1291 if (!ieee80211_is_beacon(hdr->frame_control))
1292 return;
1293
1294 /* min. beacon length + FCS_LEN */
1295 if (len <= 40 + FCS_LEN)
1296 return;
1297
1298 /* and only beacons from the associated BSSID, please */
1299 if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
1300 return;
1301
1302 if (rtl_find_221_ie(hw, data, len))
1303 vendor = mac->vendor;
1304
1305 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1306 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1307 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1308 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1309 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1310 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1311 vendor == PEER_ATH) {
1312 vendor = PEER_ATH;
1313 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ath find\n"));
1314 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1315 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1316 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1317 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1318 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1319 vendor == PEER_RAL) {
1320 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>ral findn\n"));
1321 vendor = PEER_RAL;
1322 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1323 vendor == PEER_CISCO) {
1324 vendor = PEER_CISCO;
1325 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>cisco find\n"));
1326 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1327 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1328 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1329 vendor == PEER_BROAD) {
1330 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>broad find\n"));
1331 vendor = PEER_BROAD;
1332 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1333 vendor == PEER_MARV) {
1334 vendor = PEER_MARV;
1335 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("=>marv find\n"));
1336 }
1337
1338 mac->vendor = vendor;
1339}
1340
1341/*********************************************************
1342 *
1343 * sysfs functions
1344 *
1345 *********************************************************/
1346static ssize_t rtl_show_debug_level(struct device *d,
1347 struct device_attribute *attr, char *buf)
1348{
1349 struct ieee80211_hw *hw = dev_get_drvdata(d);
1350 struct rtl_priv *rtlpriv = rtl_priv(hw);
1351
1352 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1353}
1354
1355static ssize_t rtl_store_debug_level(struct device *d,
1356 struct device_attribute *attr,
1357 const char *buf, size_t count)
1358{
1359 struct ieee80211_hw *hw = dev_get_drvdata(d);
1360 struct rtl_priv *rtlpriv = rtl_priv(hw);
1361 unsigned long val;
1362 int ret;
1363
1364 ret = strict_strtoul(buf, 0, &val);
1365 if (ret) {
1366 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1367 } else {
1368 rtlpriv->dbg.global_debuglevel = val;
1369 printk(KERN_DEBUG "debuglevel:%x\n",
1370 rtlpriv->dbg.global_debuglevel);
1371 }
1372
1373 return strnlen(buf, count);
1374}
1375
1376static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1377 rtl_show_debug_level, rtl_store_debug_level);
1378
1379static struct attribute *rtl_sysfs_entries[] = {
1380
1381 &dev_attr_debug_level.attr,
1382
1383 NULL
1384};
1385
1386/*
1387 * "name" is folder name witch will be
1388 * put in device directory like :
1389 * sys/devices/pci0000:00/0000:00:1c.4/
1390 * 0000:06:00.0/rtl_sysfs
1391 */
1392struct attribute_group rtl_attribute_group = {
1393 .name = "rtlsysfs",
1394 .attrs = rtl_sysfs_entries,
1395};
1396
1397MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1398MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1399MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1400MODULE_LICENSE("GPL");
1401MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1402
1403static int __init rtl_core_module_init(void)
1404{
1405 if (rtl_rate_control_register())
1406 pr_err("Unable to register rtl_rc, use default RC !!\n");
1407
1408 return 0;
1409}
1410
1411static void __exit rtl_core_module_exit(void)
1412{
1413 /*RC*/
1414 rtl_rate_control_unregister();
1415}
1416
1417module_init(rtl_core_module_init);
1418module_exit(rtl_core_module_exit);