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ath9k: Print the correct channel mode
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / base.c
CommitLineData
0c817338
LF		 1/******************************************************************************
2 *
a8d76066 3 * Copyright(c) 2009-2012 Realtek Corporation.
0c817338
LF		 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
0c817338
LF		 30#include "wifi.h"
31#include "rc.h"
32#include "base.h"
33#include "efuse.h"
34#include "cam.h"
35#include "ps.h"
36#include "regd.h"
37
d273bb20
LF		 38#include <linux/ip.h>
39#include <linux/module.h>
40
0c817338
LF		 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
acd48572
C		 55 *6) IOT functions
56 *7) sysfs functions
57 *8) ...
0c817338
LF		 58 */
59
60/*********************************************************
61 *
62 * mac80211 init functions
63 *
64 *********************************************************/
acd48572 65static struct ieee80211_channel rtl_channeltable_2g[] = {
0c817338
LF		 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
acd48572
C		 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[] = {
0c817338
LF		 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
acd48572
C		 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
0c817338
LF		 135static const struct ieee80211_supported_band rtl_band_2ghz = {
136 .band = IEEE80211_BAND_2GHZ,
137
acd48572
C		 138 .channels = rtl_channeltable_2g,
139 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
0c817338 140
acd48572
C		 141 .bitrates = rtl_ratetable_2g,
142 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
0c817338
LF		 143
144 .ht_cap = {0},
145};
146
acd48572
C		 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),
0c817338 152
acd48572
C		 153 .bitrates = rtl_ratetable_5g,
154 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
0c817338
LF		 155
156 .ht_cap = {0},
157};
158
acd48572
C		 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
0c817338
LF		 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
acd48572
C		 187 if (rtlpriv->rtlhal.disable_amsdu_8k)
188 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
189
0c817338
LF		 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
f30d7507 213 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T2R or 2T2R\n");
0c817338
LF		 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
17c9ac62 219 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
0c817338
LF		 220 } else if (get_rf_type(rtlphy) == RF_1T1R) {
221
f30d7507 222 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
0c817338
LF		 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
17c9ac62 228 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
0c817338
LF		 229 }
230}
231
232static void _rtl_init_mac80211(struct ieee80211_hw *hw)
233{
acd48572
C		 234 struct rtl_priv *rtlpriv = rtl_priv(hw);
235 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
0c817338
LF		 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
0c817338 240
acd48572
C		 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]);
0c817338 246
acd48572
C		 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));
0c817338 251
acd48572
C		 252 /* <3> init ht cap base on ant_num */
253 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
0c817338 254
acd48572
C		 255 /* <4> set mac->sband to wiphy->sband */
256 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
0c817338 257
acd48572
C		 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 {
f30d7507
JP		 304 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
305 rtlhal->current_bandtype);
acd48572
C		 306 }
307 }
0c817338
LF		 308 /* <5> set hw caps */
309 hw->flags = IEEE80211_HW_SIGNAL_DBM |
310 IEEE80211_HW_RX_INCLUDES_FCS |
acd48572 311 IEEE80211_HW_AMPDU_AGGREGATION |
09e92f0b
CL		 312 IEEE80211_HW_CONNECTION_MONITOR |
313 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
0c817338
LF		 314 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
315
acd48572
C		 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
0c817338 323 hw->wiphy->interface_modes =
acd48572
C		 324 BIT(NL80211_IFTYPE_AP) |
325 BIT(NL80211_IFTYPE_STATION) |
326 BIT(NL80211_IFTYPE_ADHOC);
0c817338
LF		 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;
acd48572 336 hw->max_listen_interval = 10;
0c817338
LF		 337 hw->max_rate_tries = 4;
338 /* hw->max_rates = 1; */
acd48572 339 hw->sta_data_size = sizeof(struct rtl_sta_info);
0c817338
LF		 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 {
abfabc9b
LF		 345 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
346 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
347 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
0c817338
LF		 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;
3d986b25 363 rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
0c817338
LF		 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);
acd48572
C		 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);
0c817338
LF		 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);
acd48572
C		 383 cancel_delayed_work(&rtlpriv->works.ps_work);
384 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
0c817338
LF		 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
228bdfca 395 /*set init state to on */
3db1cd5c 396 rtlpriv->rfkill.rfkill_state = true;
228bdfca 397 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
0c817338 398
228bdfca 399 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
0c817338 400
e6d8a817 401 if (valid) {
292b1192
JP		 402 pr_info("wireless switch is %s\n",
403 rtlpriv->rfkill.rfkill_state ? "on" : "off");
228bdfca 404
0c817338
LF		 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 */
375ff4c7 429 hw->rate_control_algorithm = "rtl_rc";
0c817338
LF		 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)) {
f30d7507 436 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
0c817338
LF		 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,
f30d7507 442 "regulatory_hint fail\n");
0c817338
LF		 443 }
444 }
445
446 /* <4> locks */
8a09d6d8 447 mutex_init(&rtlpriv->locks.conf_mutex);
6539306b 448 mutex_init(&rtlpriv->locks.ps_mutex);
b9116b9a 449 spin_lock_init(&rtlpriv->locks.ips_lock);
0c817338
LF		 450 spin_lock_init(&rtlpriv->locks.irq_th_lock);
451 spin_lock_init(&rtlpriv->locks.h2c_lock);
452 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
453 spin_lock_init(&rtlpriv->locks.rf_lock);
acd48572
C		 454 spin_lock_init(&rtlpriv->locks.waitq_lock);
455 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
0c817338
LF		 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{
0c817338
LF		 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));
0c817338
LF		 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,
acd48572 501 struct ieee80211_sta *sta,
0c817338
LF		 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;
acd48572 507 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
0c817338
LF		 508 tcb_desc->use_shortgi = false;
509
acd48572 510 if (sta == NULL)
0c817338
LF		 511 return;
512
acd48572
C		 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))
0c817338
LF		 517 return;
518
acd48572 519 if (!sgi_40 && !sgi_20)
0c817338
LF		 520 return;
521
acd48572
C		 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
e10542c4 528 if (bw_40 && sgi_40)
0c817338 529 tcb_desc->use_shortgi = true;
acd48572 530 else if ((bw_40 == false) && sgi_20)
0c817338
LF		 531 tcb_desc->use_shortgi = true;
532
533 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
534 tcb_desc->use_shortgi = false;
0c817338
LF		 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 */
7ea47240
LF		 545 tcb_desc->rts_stbc = false;
546 tcb_desc->cts_enable = false;
0c817338 547 tcb_desc->rts_sc = 0;
7ea47240
LF		 548 tcb_desc->rts_bw = false;
549 tcb_desc->rts_use_shortpreamble = false;
550 tcb_desc->rts_use_shortgi = false;
0c817338
LF		 551
552 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
553 /* Use CTS-to-SELF in protection mode. */
7ea47240
LF		 554 tcb_desc->rts_enable = true;
555 tcb_desc->cts_enable = true;
0c817338
LF		 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. */
7ea47240 559 tcb_desc->rts_enable = true;
0c817338
LF		 560 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
561 }
0c817338
LF		 562}
563
564static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
acd48572 565 struct ieee80211_sta *sta,
0c817338
LF		 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));
acd48572
C		 570 struct rtl_sta_info *sta_entry = NULL;
571 u8 ratr_index = 7;
0c817338 572
acd48572
C		 573 if (sta) {
574 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
575 ratr_index = sta_entry->ratr_index;
576 }
0c817338 577 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
acd48572 578 if (mac->opmode == NL80211_IFTYPE_STATION) {
0c817338 579 tcb_desc->ratr_index = 0;
acd48572 580 } else if (mac->opmode == NL80211_IFTYPE_ADHOC) {
7ea47240 581 if (tcb_desc->multicast || tcb_desc->broadcast) {
0c817338
LF		 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 }
acd48572
C		 588 tcb_desc->ratr_index = ratr_index;
589 } else if (mac->opmode == NL80211_IFTYPE_AP) {
590 tcb_desc->ratr_index = ratr_index;
0c817338
LF		 591 }
592 }
593
7ea47240 594 if (rtlpriv->dm.useramask) {
acd48572
C		 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 }
0c817338
LF		 619 }
620 }
621
622}
623
624static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
acd48572 625 struct ieee80211_sta *sta,
0c817338
LF		 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
7ea47240 631 tcb_desc->packet_bw = false;
acd48572 632 if (!sta)
0c817338 633 return;
acd48572
C		 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 }
7ea47240 643 if (tcb_desc->multicast || tcb_desc->broadcast)
0c817338
LF		 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
7ea47240 650 tcb_desc->packet_bw = true;
0c817338
LF		 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
7ad0ce35
LF		 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 */
688int 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}
826EXPORT_SYMBOL(rtlwifi_rate_mapping);
827
0c817338
LF		 828void rtl_get_tcb_desc(struct ieee80211_hw *hw,
829 struct ieee80211_tx_info *info,
acd48572 830 struct ieee80211_sta *sta,
0c817338
LF		 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));
acd48572 835 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 836 struct ieee80211_rate *txrate;
17c9ac62 837 __le16 fc = hdr->frame_control;
0c817338 838
acd48572
C		 839 txrate = ieee80211_get_tx_rate(hw, info);
840 tcb_desc->hw_rate = txrate->hw_value;
0c817338
LF		 841
842 if (ieee80211_is_data(fc)) {
0c817338 843 /*
acd48572 844 *we set data rate INX 0
0c817338
LF		 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 */
09e92f0b 853 if (info->control.rates[0].idx == 0 ||
acd48572 854 ieee80211_is_nullfunc(fc)) {
0c817338 855 tcb_desc->use_driver_rate = true;
acd48572 856 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338 857
0c817338
LF		 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,
25985edc 864 *and N rate will all be controlled by FW
0c817338
LF		 865 *when tcb_desc->use_driver_rate = false
866 */
acd48572 867 if (sta && (sta->ht_cap.ht_supported)) {
0c817338
LF		 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)))
7ea47240 881 tcb_desc->multicast = 1;
0c817338 882 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
7ea47240 883 tcb_desc->broadcast = 1;
0c817338 884
acd48572
C		 885 _rtl_txrate_selectmode(hw, sta, tcb_desc);
886 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
0c817338 887 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
acd48572 888 _rtl_query_shortgi(hw, sta, tcb_desc, info);
0c817338
LF		 889 _rtl_query_protection_mode(hw, tcb_desc, info);
890 } else {
891 tcb_desc->use_driver_rate = true;
acd48572 892 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338
LF		 893 tcb_desc->disable_ratefallback = 1;
894 tcb_desc->mac_id = 0;
acd48572 895 tcb_desc->packet_bw = false;
0c817338
LF		 896 }
897}
898EXPORT_SYMBOL(rtl_get_tcb_desc);
899
0c817338
LF		 900bool 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));
acd48572 903 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 904 struct rtl_priv *rtlpriv = rtl_priv(hw);
17c9ac62 905 __le16 fc = hdr->frame_control;
0c817338
LF		 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,
f30d7507
JP		 922 "%s ACT_ADDBAREQ From :%pM\n",
923 is_tx ? "Tx" : "Rx", hdr->addr2);
0c817338
LF		 924 break;
925 case ACT_ADDBARSP:
926 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507
JP		 927 "%s ACT_ADDBARSP From :%pM\n",
928 is_tx ? "Tx" : "Rx", hdr->addr2);
0c817338
LF		 929 break;
930 case ACT_DELBA:
931 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507 932 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
0c817338
LF		 933 break;
934 }
935 break;
936 default:
937 break;
938 }
939
940 return true;
941}
942
943/*should call before software enc*/
944u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
945{
946 struct rtl_priv *rtlpriv = rtl_priv(hw);
0c817338 947 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
acd48572 948 __le16 fc = rtl_get_fc(skb);
0c817338
LF		 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))
32473284 954 return false;
0c817338 955
0c817338
LF		 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);
d3bb1429 960 /* ether_type = ntohs(ether_type); */
0c817338
LF		 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),
f30d7507
JP		 975 DBG_DMESG, "dhcp %s !!\n",
976 is_tx ? "Tx" : "Rx");
0c817338
LF		 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,
f30d7507 996 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
0c817338
LF		 997
998 if (is_tx) {
999 rtl_lps_leave(hw);
1000 ppsc->last_delaylps_stamp_jiffies = jiffies;
1001 }
1002
1003 return true;
17c9ac62
LF		 1004 } else if (ETH_P_IPV6 == ether_type) {
1005 /* IPv6 */
0c817338
LF		 1006 return true;
1007 }
1008
0c817338
LF		 1009 return false;
1010}
1011
1012/*********************************************************
1013 *
1014 * functions called by core.c
1015 *
1016 *********************************************************/
acd48572
C		 1017int rtl_tx_agg_start(struct ieee80211_hw *hw,
1018 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
0c817338
LF		 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));
acd48572 1023 struct rtl_sta_info *sta_entry = NULL;
0c817338 1024
acd48572
C		 1025 if (sta == NULL)
1026 return -EINVAL;
0c817338
LF		 1027
1028 if (unlikely(tid >= MAX_TID_COUNT))
1029 return -EINVAL;
1030
acd48572
C		 1031 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1032 if (!sta_entry)
0c817338 1033 return -ENXIO;
acd48572 1034 tid_data = &sta_entry->tids[tid];
0c817338 1035
f30d7507
JP		 1036 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n",
1037 sta->addr, tid, tid_data->seq_number);
0c817338 1038
acd48572
C		 1039 *ssn = tid_data->seq_number;
1040 tid_data->agg.agg_state = RTL_AGG_START;
0c817338 1041
acd48572 1042 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338
LF		 1043
1044 return 0;
1045}
1046
acd48572
C		 1047int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1048 struct ieee80211_sta *sta, u16 tid)
0c817338 1049{
0c817338
LF		 1050 struct rtl_priv *rtlpriv = rtl_priv(hw);
1051 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1052 struct rtl_sta_info *sta_entry = NULL;
0c817338 1053
acd48572
C		 1054 if (sta == NULL)
1055 return -EINVAL;
0c817338 1056
acd48572 1057 if (!sta->addr) {
f30d7507 1058 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
0c817338
LF		 1059 return -EINVAL;
1060 }
1061
f30d7507
JP		 1062 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1063 sta->addr, tid);
acd48572 1064
0c817338
LF		 1065 if (unlikely(tid >= MAX_TID_COUNT))
1066 return -EINVAL;
1067
acd48572 1068 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1069 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
0c817338 1070
acd48572 1071 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338 1072
acd48572
C		 1073 return 0;
1074}
1075
1076int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1077 struct ieee80211_sta *sta, u16 tid)
1078{
1079 struct rtl_priv *rtlpriv = rtl_priv(hw);
acd48572 1080 struct rtl_sta_info *sta_entry = NULL;
0c817338 1081
acd48572
C		 1082 if (sta == NULL)
1083 return -EINVAL;
1084
1085 if (!sta->addr) {
f30d7507 1086 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
acd48572
C		 1087 return -EINVAL;
1088 }
0c817338 1089
f30d7507
JP		 1090 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1091 sta->addr, tid);
0c817338 1092
acd48572
C		 1093 if (unlikely(tid >= MAX_TID_COUNT))
1094 return -EINVAL;
0c817338 1095
acd48572 1096 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1097 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
0c817338
LF		 1098
1099 return 0;
1100}
1101
1102/*********************************************************
1103 *
1104 * wq & timer callback functions
1105 *
1106 *********************************************************/
1107void rtl_watchdog_wq_callback(void *data)
1108{
1109 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1110 struct rtl_works,
1111 watchdog_wq);
1112 struct ieee80211_hw *hw = rtlworks->hw;
1113 struct rtl_priv *rtlpriv = rtl_priv(hw);
1114 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1115 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
7ea47240
LF		 1116 bool busytraffic = false;
1117 bool higher_busytraffic = false;
1118 bool higher_busyrxtraffic = false;
acd48572 1119 u8 idx, tid;
0c817338
LF		 1120 u32 rx_cnt_inp4eriod = 0;
1121 u32 tx_cnt_inp4eriod = 0;
1122 u32 aver_rx_cnt_inperiod = 0;
1123 u32 aver_tx_cnt_inperiod = 0;
acd48572
C		 1124 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1125 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
7ea47240 1126 bool enter_ps = false;
0c817338
LF		 1127
1128 if (is_hal_stop(rtlhal))
1129 return;
1130
1131 /* <1> Determine if action frame is allowed */
1132 if (mac->link_state > MAC80211_NOLINK) {
1133 if (mac->cnt_after_linked < 20)
1134 mac->cnt_after_linked++;
1135 } else {
1136 mac->cnt_after_linked = 0;
1137 }
1138
0c817338 1139 /*
09e92f0b 1140 *<2> to check if traffic busy, if
0c817338
LF		 1141 * busytraffic we don't change channel
1142 */
1143 if (mac->link_state >= MAC80211_LINKED) {
1144
1145 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1146 for (idx = 0; idx <= 2; idx++) {
1147 rtlpriv->link_info.num_rx_in4period[idx] =
1148 rtlpriv->link_info.num_rx_in4period[idx + 1];
1149 rtlpriv->link_info.num_tx_in4period[idx] =
1150 rtlpriv->link_info.num_tx_in4period[idx + 1];
1151 }
1152 rtlpriv->link_info.num_rx_in4period[3] =
1153 rtlpriv->link_info.num_rx_inperiod;
1154 rtlpriv->link_info.num_tx_in4period[3] =
1155 rtlpriv->link_info.num_tx_inperiod;
1156 for (idx = 0; idx <= 3; idx++) {
1157 rx_cnt_inp4eriod +=
1158 rtlpriv->link_info.num_rx_in4period[idx];
1159 tx_cnt_inp4eriod +=
1160 rtlpriv->link_info.num_tx_in4period[idx];
1161 }
1162 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1163 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1164
1165 /* (2) check traffic busy */
1166 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
7ea47240 1167 busytraffic = true;
0c817338
LF		 1168
1169 /* Higher Tx/Rx data. */
1170 if (aver_rx_cnt_inperiod > 4000 ||
1171 aver_tx_cnt_inperiod > 4000) {
7ea47240 1172 higher_busytraffic = true;
0c817338
LF		 1173
1174 /* Extremely high Rx data. */
1175 if (aver_rx_cnt_inperiod > 5000)
7ea47240 1176 higher_busyrxtraffic = true;
acd48572
C		 1177 }
1178
1179 /* check every tid's tx traffic */
1180 for (tid = 0; tid <= 7; tid++) {
1181 for (idx = 0; idx <= 2; idx++)
1182 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1183 rtlpriv->link_info.tidtx_in4period[tid]
1184 [idx + 1];
1185 rtlpriv->link_info.tidtx_in4period[tid][3] =
1186 rtlpriv->link_info.tidtx_inperiod[tid];
1187
1188 for (idx = 0; idx <= 3; idx++)
1189 tidtx_inp4eriod[tid] +=
1190 rtlpriv->link_info.tidtx_in4period[tid][idx];
1191 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1192 if (aver_tidtx_inperiod[tid] > 5000)
1193 rtlpriv->link_info.higher_busytxtraffic[tid] =
1194 true;
0c817338 1195 else
acd48572
C		 1196 rtlpriv->link_info.higher_busytxtraffic[tid] =
1197 false;
0c817338
LF		 1198 }
1199
1200 if (((rtlpriv->link_info.num_rx_inperiod +
1201 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1202 (rtlpriv->link_info.num_rx_inperiod > 2))
7ea47240 1203 enter_ps = false;
0c817338 1204 else
7ea47240 1205 enter_ps = true;
0c817338
LF		 1206
1207 /* LeisurePS only work in infra mode. */
7ea47240 1208 if (enter_ps)
0c817338
LF		 1209 rtl_lps_enter(hw);
1210 else
1211 rtl_lps_leave(hw);
1212 }
1213
1214 rtlpriv->link_info.num_rx_inperiod = 0;
1215 rtlpriv->link_info.num_tx_inperiod = 0;
acd48572
C		 1216 for (tid = 0; tid <= 7; tid++)
1217 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
0c817338 1218
7ea47240
LF		 1219 rtlpriv->link_info.busytraffic = busytraffic;
1220 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1221 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
0c817338 1222
acd48572
C		 1223 /* <3> DM */
1224 rtlpriv->cfg->ops->dm_watchdog(hw);
0c817338
LF		 1225}
1226
1227void rtl_watch_dog_timer_callback(unsigned long data)
1228{
1229 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1230 struct rtl_priv *rtlpriv = rtl_priv(hw);
1231
1232 queue_delayed_work(rtlpriv->works.rtl_wq,
1233 &rtlpriv->works.watchdog_wq, 0);
1234
1235 mod_timer(&rtlpriv->works.watchdog_timer,
1236 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1237}
1238
acd48572
C		 1239/*********************************************************
1240 *
1241 * frame process functions
1242 *
1243 *********************************************************/
1244u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1245{
1246 struct ieee80211_mgmt *mgmt = (void *)data;
1247 u8 *pos, *end;
1248
1249 pos = (u8 *)mgmt->u.beacon.variable;
1250 end = data + len;
1251 while (pos < end) {
1252 if (pos + 2 + pos[1] > end)
1253 return NULL;
1254
1255 if (pos[0] == ie)
1256 return pos;
1257
1258 pos += 2 + pos[1];
1259 }
1260 return NULL;
1261}
1262
1263/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1264/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
d3bb1429 1265static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
acd48572
C		 1266 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1267{
1268 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1269 struct sk_buff *skb;
1270 struct ieee80211_mgmt *action_frame;
1271
1272 /* 27 = header + category + action + smps mode */
1273 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1274 if (!skb)
1275 return NULL;
1276
1277 skb_reserve(skb, hw->extra_tx_headroom);
1278 action_frame = (void *)skb_put(skb, 27);
1279 memset(action_frame, 0, 27);
1280 memcpy(action_frame->da, da, ETH_ALEN);
1281 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1282 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1283 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1284 IEEE80211_STYPE_ACTION);
1285 action_frame->u.action.category = WLAN_CATEGORY_HT;
1286 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1287 switch (smps) {
1288 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1289 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1290 WARN_ON(1);
1291 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1292 action_frame->u.action.u.ht_smps.smps_control =
1293 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1294 break;
1295 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1296 action_frame->u.action.u.ht_smps.smps_control =
1297 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1298 break;
1299 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1300 action_frame->u.action.u.ht_smps.smps_control =
1301 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1302 break;
1303 }
1304
1305 return skb;
1306}
1307
1308int rtl_send_smps_action(struct ieee80211_hw *hw,
1309 struct ieee80211_sta *sta, u8 *da, u8 *bssid,
1310 enum ieee80211_smps_mode smps)
1311{
1312 struct rtl_priv *rtlpriv = rtl_priv(hw);
1313 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1314 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1315 struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
1316 struct rtl_tcb_desc tcb_desc;
1317 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1318
1319 if (rtlpriv->mac80211.act_scanning)
1320 goto err_free;
1321
1322 if (!sta)
1323 goto err_free;
1324
1325 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1326 goto err_free;
1327
1328 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1329 goto err_free;
1330
1331 /* this is a type = mgmt * stype = action frame */
1332 if (skb) {
1333 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1334 struct rtl_sta_info *sta_entry =
1335 (struct rtl_sta_info *) sta->drv_priv;
1336 sta_entry->mimo_ps = smps;
1337 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
1338
1339 info->control.rates[0].idx = 0;
1340 info->control.sta = sta;
1341 info->band = hw->conf.channel->band;
acd48572 1342 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
acd48572 1343 }
acd48572
C		 1344err_free:
1345 return 0;
1346}
1347
1348/*********************************************************
1349 *
1350 * IOT functions
1351 *
1352 *********************************************************/
1353static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1354 struct octet_string vendor_ie)
1355{
1356 struct rtl_priv *rtlpriv = rtl_priv(hw);
1357 bool matched = false;
1358 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1359 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1360 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1361 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1362 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1363 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1364 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1365 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1366
1367 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1368 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1369 rtlpriv->mac80211.vendor = PEER_ATH;
1370 matched = true;
1371 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1372 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1373 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1374 rtlpriv->mac80211.vendor = PEER_BROAD;
1375 matched = true;
1376 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1377 rtlpriv->mac80211.vendor = PEER_RAL;
1378 matched = true;
1379 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1380 rtlpriv->mac80211.vendor = PEER_CISCO;
1381 matched = true;
1382 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1383 rtlpriv->mac80211.vendor = PEER_MARV;
1384 matched = true;
1385 }
1386
1387 return matched;
1388}
1389
d3bb1429 1390static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
acd48572
C		 1391 unsigned int len)
1392{
1393 struct ieee80211_mgmt *mgmt = (void *)data;
1394 struct octet_string vendor_ie;
1395 u8 *pos, *end;
1396
1397 pos = (u8 *)mgmt->u.beacon.variable;
1398 end = data + len;
1399 while (pos < end) {
1400 if (pos[0] == 221) {
1401 vendor_ie.length = pos[1];
1402 vendor_ie.octet = &pos[2];
1403 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1404 return true;
1405 }
1406
1407 if (pos + 2 + pos[1] > end)
1408 return false;
1409
1410 pos += 2 + pos[1];
1411 }
1412 return false;
1413}
1414
1415void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1416{
1417 struct rtl_priv *rtlpriv = rtl_priv(hw);
1418 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1419 struct ieee80211_hdr *hdr = (void *)data;
1420 u32 vendor = PEER_UNKNOWN;
1421
1422 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1423 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1424 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1425 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1426 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1427 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1428 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1429 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1430 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1431 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1432 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1433 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1434 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1435 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1436 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1437 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1438
1439 if (mac->opmode != NL80211_IFTYPE_STATION)
1440 return;
1441
1442 if (mac->link_state == MAC80211_NOLINK) {
1443 mac->vendor = PEER_UNKNOWN;
1444 return;
1445 }
1446
1447 if (mac->cnt_after_linked > 2)
1448 return;
1449
1450 /* check if this really is a beacon */
1451 if (!ieee80211_is_beacon(hdr->frame_control))
1452 return;
1453
1454 /* min. beacon length + FCS_LEN */
1455 if (len <= 40 + FCS_LEN)
1456 return;
1457
1458 /* and only beacons from the associated BSSID, please */
1459 if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
1460 return;
1461
1462 if (rtl_find_221_ie(hw, data, len))
1463 vendor = mac->vendor;
1464
1465 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1466 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1467 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1468 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1469 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1470 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1471 vendor == PEER_ATH) {
1472 vendor = PEER_ATH;
f30d7507 1473 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
acd48572
C		 1474 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1475 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1476 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1477 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1478 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1479 vendor == PEER_RAL) {
f30d7507 1480 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
acd48572
C		 1481 vendor = PEER_RAL;
1482 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1483 vendor == PEER_CISCO) {
1484 vendor = PEER_CISCO;
f30d7507 1485 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
acd48572
C		 1486 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1487 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1488 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1489 vendor == PEER_BROAD) {
f30d7507 1490 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
acd48572
C		 1491 vendor = PEER_BROAD;
1492 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1493 vendor == PEER_MARV) {
1494 vendor = PEER_MARV;
f30d7507 1495 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
acd48572
C		 1496 }
1497
1498 mac->vendor = vendor;
1499}
1500
0c817338
LF		 1501/*********************************************************
1502 *
1503 * sysfs functions
1504 *
1505 *********************************************************/
1506static ssize_t rtl_show_debug_level(struct device *d,
1507 struct device_attribute *attr, char *buf)
1508{
1509 struct ieee80211_hw *hw = dev_get_drvdata(d);
1510 struct rtl_priv *rtlpriv = rtl_priv(hw);
1511
1512 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1513}
1514
1515static ssize_t rtl_store_debug_level(struct device *d,
1516 struct device_attribute *attr,
1517 const char *buf, size_t count)
1518{
1519 struct ieee80211_hw *hw = dev_get_drvdata(d);
1520 struct rtl_priv *rtlpriv = rtl_priv(hw);
1521 unsigned long val;
1522 int ret;
1523
1524 ret = strict_strtoul(buf, 0, &val);
1525 if (ret) {
1526 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1527 } else {
1528 rtlpriv->dbg.global_debuglevel = val;
1529 printk(KERN_DEBUG "debuglevel:%x\n",
1530 rtlpriv->dbg.global_debuglevel);
1531 }
1532
1533 return strnlen(buf, count);
1534}
1535
1536static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1537 rtl_show_debug_level, rtl_store_debug_level);
1538
1539static struct attribute *rtl_sysfs_entries[] = {
1540
1541 &dev_attr_debug_level.attr,
1542
1543 NULL
1544};
1545
1546/*
1547 * "name" is folder name witch will be
1548 * put in device directory like :
1549 * sys/devices/pci0000:00/0000:00:1c.4/
1550 * 0000:06:00.0/rtl_sysfs
1551 */
1552struct attribute_group rtl_attribute_group = {
1553 .name = "rtlsysfs",
1554 .attrs = rtl_sysfs_entries,
1555};
1556
1557MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1558MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1559MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1560MODULE_LICENSE("GPL");
1561MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1562
1563static int __init rtl_core_module_init(void)
1564{
375ff4c7 1565 if (rtl_rate_control_register())
292b1192 1566 pr_err("Unable to register rtl_rc, use default RC !!\n");
acd48572 1567
0c817338
LF		 1568 return 0;
1569}
1570
1571static void __exit rtl_core_module_exit(void)
1572{
acd48572 1573 /*RC*/
375ff4c7 1574 rtl_rate_control_unregister();
0c817338
LF		 1575}
1576
1577module_init(rtl_core_module_init);
1578module_exit(rtl_core_module_exit);
Linux kernel - Deliverables
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