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rtl8192cu: Remove dead code never selected
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / base.c
CommitLineData
0c817338
LF		 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
292b1192
JP		 30#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
0c817338 32#include <linux/ip.h>
9d9779e7 33#include <linux/module.h>
0c817338
LF		 34#include "wifi.h"
35#include "rc.h"
36#include "base.h"
37#include "efuse.h"
38#include "cam.h"
39#include "ps.h"
40#include "regd.h"
41
42/*
43 *NOTICE!!!: This file will be very big, we hsould
44 *keep it clear under follwing roles:
45 *
46 *This file include follwing part, so, if you add new
47 *functions into this file, please check which part it
48 *should includes. or check if you should add new part
49 *for this file:
50 *
51 *1) mac80211 init functions
52 *2) tx information functions
53 *3) functions called by core.c
54 *4) wq & timer callback functions
55 *5) frame process functions
acd48572
C		 56 *6) IOT functions
57 *7) sysfs functions
58 *8) ...
0c817338
LF		 59 */
60
61/*********************************************************
62 *
63 * mac80211 init functions
64 *
65 *********************************************************/
acd48572 66static struct ieee80211_channel rtl_channeltable_2g[] = {
0c817338
LF		 67 {.center_freq = 2412, .hw_value = 1,},
68 {.center_freq = 2417, .hw_value = 2,},
69 {.center_freq = 2422, .hw_value = 3,},
70 {.center_freq = 2427, .hw_value = 4,},
71 {.center_freq = 2432, .hw_value = 5,},
72 {.center_freq = 2437, .hw_value = 6,},
73 {.center_freq = 2442, .hw_value = 7,},
74 {.center_freq = 2447, .hw_value = 8,},
75 {.center_freq = 2452, .hw_value = 9,},
76 {.center_freq = 2457, .hw_value = 10,},
77 {.center_freq = 2462, .hw_value = 11,},
78 {.center_freq = 2467, .hw_value = 12,},
79 {.center_freq = 2472, .hw_value = 13,},
80 {.center_freq = 2484, .hw_value = 14,},
81};
82
acd48572
C		 83static struct ieee80211_channel rtl_channeltable_5g[] = {
84 {.center_freq = 5180, .hw_value = 36,},
85 {.center_freq = 5200, .hw_value = 40,},
86 {.center_freq = 5220, .hw_value = 44,},
87 {.center_freq = 5240, .hw_value = 48,},
88 {.center_freq = 5260, .hw_value = 52,},
89 {.center_freq = 5280, .hw_value = 56,},
90 {.center_freq = 5300, .hw_value = 60,},
91 {.center_freq = 5320, .hw_value = 64,},
92 {.center_freq = 5500, .hw_value = 100,},
93 {.center_freq = 5520, .hw_value = 104,},
94 {.center_freq = 5540, .hw_value = 108,},
95 {.center_freq = 5560, .hw_value = 112,},
96 {.center_freq = 5580, .hw_value = 116,},
97 {.center_freq = 5600, .hw_value = 120,},
98 {.center_freq = 5620, .hw_value = 124,},
99 {.center_freq = 5640, .hw_value = 128,},
100 {.center_freq = 5660, .hw_value = 132,},
101 {.center_freq = 5680, .hw_value = 136,},
102 {.center_freq = 5700, .hw_value = 140,},
103 {.center_freq = 5745, .hw_value = 149,},
104 {.center_freq = 5765, .hw_value = 153,},
105 {.center_freq = 5785, .hw_value = 157,},
106 {.center_freq = 5805, .hw_value = 161,},
107 {.center_freq = 5825, .hw_value = 165,},
108};
109
110static struct ieee80211_rate rtl_ratetable_2g[] = {
0c817338
LF		 111 {.bitrate = 10, .hw_value = 0x00,},
112 {.bitrate = 20, .hw_value = 0x01,},
113 {.bitrate = 55, .hw_value = 0x02,},
114 {.bitrate = 110, .hw_value = 0x03,},
115 {.bitrate = 60, .hw_value = 0x04,},
116 {.bitrate = 90, .hw_value = 0x05,},
117 {.bitrate = 120, .hw_value = 0x06,},
118 {.bitrate = 180, .hw_value = 0x07,},
119 {.bitrate = 240, .hw_value = 0x08,},
120 {.bitrate = 360, .hw_value = 0x09,},
121 {.bitrate = 480, .hw_value = 0x0a,},
122 {.bitrate = 540, .hw_value = 0x0b,},
123};
124
acd48572
C		 125static struct ieee80211_rate rtl_ratetable_5g[] = {
126 {.bitrate = 60, .hw_value = 0x04,},
127 {.bitrate = 90, .hw_value = 0x05,},
128 {.bitrate = 120, .hw_value = 0x06,},
129 {.bitrate = 180, .hw_value = 0x07,},
130 {.bitrate = 240, .hw_value = 0x08,},
131 {.bitrate = 360, .hw_value = 0x09,},
132 {.bitrate = 480, .hw_value = 0x0a,},
133 {.bitrate = 540, .hw_value = 0x0b,},
134};
135
0c817338
LF		 136static const struct ieee80211_supported_band rtl_band_2ghz = {
137 .band = IEEE80211_BAND_2GHZ,
138
acd48572
C		 139 .channels = rtl_channeltable_2g,
140 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
0c817338 141
acd48572
C		 142 .bitrates = rtl_ratetable_2g,
143 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
0c817338
LF		 144
145 .ht_cap = {0},
146};
147
acd48572
C		 148static struct ieee80211_supported_band rtl_band_5ghz = {
149 .band = IEEE80211_BAND_5GHZ,
150
151 .channels = rtl_channeltable_5g,
152 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
0c817338 153
acd48572
C		 154 .bitrates = rtl_ratetable_5g,
155 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
0c817338
LF		 156
157 .ht_cap = {0},
158};
159
acd48572
C		 160static const u8 tid_to_ac[] = {
161 2, /* IEEE80211_AC_BE */
162 3, /* IEEE80211_AC_BK */
163 3, /* IEEE80211_AC_BK */
164 2, /* IEEE80211_AC_BE */
165 1, /* IEEE80211_AC_VI */
166 1, /* IEEE80211_AC_VI */
167 0, /* IEEE80211_AC_VO */
168 0, /* IEEE80211_AC_VO */
169};
170
171u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid)
172{
173 return tid_to_ac[tid];
174}
175
0c817338
LF		 176static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
177 struct ieee80211_sta_ht_cap *ht_cap)
178{
179 struct rtl_priv *rtlpriv = rtl_priv(hw);
180 struct rtl_phy *rtlphy = &(rtlpriv->phy);
181
182 ht_cap->ht_supported = true;
183 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
184 IEEE80211_HT_CAP_SGI_40 |
185 IEEE80211_HT_CAP_SGI_20 |
186 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
187
acd48572
C		 188 if (rtlpriv->rtlhal.disable_amsdu_8k)
189 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
190
0c817338
LF		 191 /*
192 *Maximum length of AMPDU that the STA can receive.
193 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
194 */
195 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
196
197 /*Minimum MPDU start spacing , */
198 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
199
200 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
201
202 /*
203 *hw->wiphy->bands[IEEE80211_BAND_2GHZ]
204 *base on ant_num
205 *rx_mask: RX mask
206 *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7
207 *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15
208 *if rx_ant >=3 rx_mask[2]=0xff;
209 *if BW_40 rx_mask[4]=0x01;
210 *highest supported RX rate
211 */
212 if (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) {
213
f30d7507 214 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T2R or 2T2R\n");
0c817338
LF		 215
216 ht_cap->mcs.rx_mask[0] = 0xFF;
217 ht_cap->mcs.rx_mask[1] = 0xFF;
218 ht_cap->mcs.rx_mask[4] = 0x01;
219
17c9ac62 220 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
0c817338
LF		 221 } else if (get_rf_type(rtlphy) == RF_1T1R) {
222
f30d7507 223 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
0c817338
LF		 224
225 ht_cap->mcs.rx_mask[0] = 0xFF;
226 ht_cap->mcs.rx_mask[1] = 0x00;
227 ht_cap->mcs.rx_mask[4] = 0x01;
228
17c9ac62 229 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
0c817338
LF		 230 }
231}
232
233static void _rtl_init_mac80211(struct ieee80211_hw *hw)
234{
acd48572
C		 235 struct rtl_priv *rtlpriv = rtl_priv(hw);
236 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
0c817338
LF		 237 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
238 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
239 struct ieee80211_supported_band *sband;
240
0c817338 241
acd48572
C		 242 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
243 BAND_ON_BOTH) {
244 /* 1: 2.4 G bands */
245 /* <1> use mac->bands as mem for hw->wiphy->bands */
246 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
0c817338 247
acd48572
C		 248 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
249 * to default value(1T1R) */
250 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
251 sizeof(struct ieee80211_supported_band));
0c817338 252
acd48572
C		 253 /* <3> init ht cap base on ant_num */
254 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
0c817338 255
acd48572
C		 256 /* <4> set mac->sband to wiphy->sband */
257 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
0c817338 258
acd48572
C		 259 /* 2: 5 G bands */
260 /* <1> use mac->bands as mem for hw->wiphy->bands */
261 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
262
263 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
264 * to default value(1T1R) */
265 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
266 sizeof(struct ieee80211_supported_band));
267
268 /* <3> init ht cap base on ant_num */
269 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
270
271 /* <4> set mac->sband to wiphy->sband */
272 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
273 } else {
274 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
275 /* <1> use mac->bands as mem for hw->wiphy->bands */
276 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
277
278 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
279 * to default value(1T1R) */
280 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
281 &rtl_band_2ghz,
282 sizeof(struct ieee80211_supported_band));
283
284 /* <3> init ht cap base on ant_num */
285 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
286
287 /* <4> set mac->sband to wiphy->sband */
288 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
289 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
290 /* <1> use mac->bands as mem for hw->wiphy->bands */
291 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
292
293 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
294 * to default value(1T1R) */
295 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
296 &rtl_band_5ghz,
297 sizeof(struct ieee80211_supported_band));
298
299 /* <3> init ht cap base on ant_num */
300 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
301
302 /* <4> set mac->sband to wiphy->sband */
303 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
304 } else {
f30d7507
JP		 305 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
306 rtlhal->current_bandtype);
acd48572
C		 307 }
308 }
0c817338
LF		 309 /* <5> set hw caps */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_RX_INCLUDES_FCS |
acd48572
C		 312 IEEE80211_HW_BEACON_FILTER |
313 IEEE80211_HW_AMPDU_AGGREGATION |
09e92f0b
CL		 314 IEEE80211_HW_CONNECTION_MONITOR |
315 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
0c817338
LF		 316 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
317
acd48572
C		 318 /* swlps or hwlps has been set in diff chip in init_sw_vars */
319 if (rtlpriv->psc.swctrl_lps)
320 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
321 IEEE80211_HW_PS_NULLFUNC_STACK |
322 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
323 0;
324
0c817338 325 hw->wiphy->interface_modes =
acd48572
C		 326 BIT(NL80211_IFTYPE_AP) |
327 BIT(NL80211_IFTYPE_STATION) |
328 BIT(NL80211_IFTYPE_ADHOC);
0c817338
LF		 329
330 hw->wiphy->rts_threshold = 2347;
331
332 hw->queues = AC_MAX;
333 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
334
335 /* TODO: Correct this value for our hw */
336 /* TODO: define these hard code value */
337 hw->channel_change_time = 100;
acd48572 338 hw->max_listen_interval = 10;
0c817338
LF		 339 hw->max_rate_tries = 4;
340 /* hw->max_rates = 1; */
acd48572 341 hw->sta_data_size = sizeof(struct rtl_sta_info);
0c817338
LF		 342
343 /* <6> mac address */
344 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
345 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
346 } else {
abfabc9b
LF		 347 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
348 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
349 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
0c817338
LF		 350 }
351
352}
353
354static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
355{
356 struct rtl_priv *rtlpriv = rtl_priv(hw);
357
358 /* <1> timer */
359 init_timer(&rtlpriv->works.watchdog_timer);
360 setup_timer(&rtlpriv->works.watchdog_timer,
361 rtl_watch_dog_timer_callback, (unsigned long)hw);
362
363 /* <2> work queue */
364 rtlpriv->works.hw = hw;
3d986b25 365 rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
0c817338
LF		 366 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
367 (void *)rtl_watchdog_wq_callback);
368 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
369 (void *)rtl_ips_nic_off_wq_callback);
acd48572
C		 370 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
371 (void *)rtl_swlps_wq_callback);
372 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
373 (void *)rtl_swlps_rfon_wq_callback);
0c817338
LF		 374
375}
376
377void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
378{
379 struct rtl_priv *rtlpriv = rtl_priv(hw);
380
381 del_timer_sync(&rtlpriv->works.watchdog_timer);
382
383 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
384 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
acd48572
C		 385 cancel_delayed_work(&rtlpriv->works.ps_work);
386 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
0c817338
LF		 387}
388
389void rtl_init_rfkill(struct ieee80211_hw *hw)
390{
391 struct rtl_priv *rtlpriv = rtl_priv(hw);
392
393 bool radio_state;
394 bool blocked;
395 u8 valid = 0;
396
228bdfca 397 /*set init state to on */
3db1cd5c 398 rtlpriv->rfkill.rfkill_state = true;
228bdfca 399 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
0c817338 400
228bdfca 401 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
0c817338 402
e6d8a817 403 if (valid) {
292b1192
JP		 404 pr_info("wireless switch is %s\n",
405 rtlpriv->rfkill.rfkill_state ? "on" : "off");
228bdfca 406
0c817338
LF		 407 rtlpriv->rfkill.rfkill_state = radio_state;
408
409 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
410 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
411 }
412
413 wiphy_rfkill_start_polling(hw->wiphy);
414}
415
416void rtl_deinit_rfkill(struct ieee80211_hw *hw)
417{
418 wiphy_rfkill_stop_polling(hw->wiphy);
419}
420
421int rtl_init_core(struct ieee80211_hw *hw)
422{
423 struct rtl_priv *rtlpriv = rtl_priv(hw);
424 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
425
426 /* <1> init mac80211 */
427 _rtl_init_mac80211(hw);
428 rtlmac->hw = hw;
429
430 /* <2> rate control register */
375ff4c7 431 hw->rate_control_algorithm = "rtl_rc";
0c817338
LF		 432
433 /*
434 * <3> init CRDA must come after init
435 * mac80211 hw in _rtl_init_mac80211.
436 */
437 if (rtl_regd_init(hw, rtl_reg_notifier)) {
f30d7507 438 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
0c817338
LF		 439 return 1;
440 } else {
441 /* CRDA regd hint must after init CRDA */
442 if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) {
443 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
f30d7507 444 "regulatory_hint fail\n");
0c817338
LF		 445 }
446 }
447
448 /* <4> locks */
8a09d6d8 449 mutex_init(&rtlpriv->locks.conf_mutex);
6539306b 450 mutex_init(&rtlpriv->locks.ps_mutex);
b9116b9a 451 spin_lock_init(&rtlpriv->locks.ips_lock);
0c817338
LF		 452 spin_lock_init(&rtlpriv->locks.irq_th_lock);
453 spin_lock_init(&rtlpriv->locks.h2c_lock);
454 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
455 spin_lock_init(&rtlpriv->locks.rf_lock);
acd48572
C		 456 spin_lock_init(&rtlpriv->locks.waitq_lock);
457 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
0c817338
LF		 458
459 rtlmac->link_state = MAC80211_NOLINK;
460
461 /* <5> init deferred work */
462 _rtl_init_deferred_work(hw);
463
464 return 0;
465}
466
467void rtl_deinit_core(struct ieee80211_hw *hw)
468{
0c817338
LF		 469}
470
471void rtl_init_rx_config(struct ieee80211_hw *hw)
472{
473 struct rtl_priv *rtlpriv = rtl_priv(hw);
474 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
475
476 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
0c817338
LF		 477}
478
479/*********************************************************
480 *
481 * tx information functions
482 *
483 *********************************************************/
484static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
485 struct rtl_tcb_desc *tcb_desc,
486 struct ieee80211_tx_info *info)
487{
488 struct rtl_priv *rtlpriv = rtl_priv(hw);
489 u8 rate_flag = info->control.rates[0].flags;
490
491 tcb_desc->use_shortpreamble = false;
492
493 /* 1M can only use Long Preamble. 11B spec */
494 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
495 return;
496 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
497 tcb_desc->use_shortpreamble = true;
498
499 return;
500}
501
502static void _rtl_query_shortgi(struct ieee80211_hw *hw,
acd48572 503 struct ieee80211_sta *sta,
0c817338
LF		 504 struct rtl_tcb_desc *tcb_desc,
505 struct ieee80211_tx_info *info)
506{
507 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
508 u8 rate_flag = info->control.rates[0].flags;
acd48572 509 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
0c817338
LF		 510 tcb_desc->use_shortgi = false;
511
acd48572 512 if (sta == NULL)
0c817338
LF		 513 return;
514
acd48572
C		 515 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
516 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
517
518 if (!(sta->ht_cap.ht_supported))
0c817338
LF		 519 return;
520
acd48572 521 if (!sgi_40 && !sgi_20)
0c817338
LF		 522 return;
523
acd48572
C		 524 if (mac->opmode == NL80211_IFTYPE_STATION)
525 bw_40 = mac->bw_40;
526 else if (mac->opmode == NL80211_IFTYPE_AP ||
527 mac->opmode == NL80211_IFTYPE_ADHOC)
528 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
529
e10542c4 530 if (bw_40 && sgi_40)
0c817338 531 tcb_desc->use_shortgi = true;
acd48572 532 else if ((bw_40 == false) && sgi_20)
0c817338
LF		 533 tcb_desc->use_shortgi = true;
534
535 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
536 tcb_desc->use_shortgi = false;
0c817338
LF		 537}
538
539static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
540 struct rtl_tcb_desc *tcb_desc,
541 struct ieee80211_tx_info *info)
542{
543 struct rtl_priv *rtlpriv = rtl_priv(hw);
544 u8 rate_flag = info->control.rates[0].flags;
545
546 /* Common Settings */
7ea47240
LF		 547 tcb_desc->rts_stbc = false;
548 tcb_desc->cts_enable = false;
0c817338 549 tcb_desc->rts_sc = 0;
7ea47240
LF		 550 tcb_desc->rts_bw = false;
551 tcb_desc->rts_use_shortpreamble = false;
552 tcb_desc->rts_use_shortgi = false;
0c817338
LF		 553
554 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
555 /* Use CTS-to-SELF in protection mode. */
7ea47240
LF		 556 tcb_desc->rts_enable = true;
557 tcb_desc->cts_enable = true;
0c817338
LF		 558 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
559 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
560 /* Use RTS-CTS in protection mode. */
7ea47240 561 tcb_desc->rts_enable = true;
0c817338
LF		 562 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
563 }
0c817338
LF		 564}
565
566static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
acd48572 567 struct ieee80211_sta *sta,
0c817338
LF		 568 struct rtl_tcb_desc *tcb_desc)
569{
570 struct rtl_priv *rtlpriv = rtl_priv(hw);
571 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572
C		 572 struct rtl_sta_info *sta_entry = NULL;
573 u8 ratr_index = 7;
0c817338 574
acd48572
C		 575 if (sta) {
576 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
577 ratr_index = sta_entry->ratr_index;
578 }
0c817338 579 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
acd48572 580 if (mac->opmode == NL80211_IFTYPE_STATION) {
0c817338 581 tcb_desc->ratr_index = 0;
acd48572 582 } else if (mac->opmode == NL80211_IFTYPE_ADHOC) {
7ea47240 583 if (tcb_desc->multicast || tcb_desc->broadcast) {
0c817338
LF		 584 tcb_desc->hw_rate =
585 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
586 tcb_desc->use_driver_rate = 1;
587 } else {
588 /* TODO */
589 }
acd48572
C		 590 tcb_desc->ratr_index = ratr_index;
591 } else if (mac->opmode == NL80211_IFTYPE_AP) {
592 tcb_desc->ratr_index = ratr_index;
0c817338
LF		 593 }
594 }
595
7ea47240 596 if (rtlpriv->dm.useramask) {
acd48572
C		 597 /* TODO we will differentiate adhoc and station futrue */
598 if (mac->opmode == NL80211_IFTYPE_STATION) {
599 tcb_desc->mac_id = 0;
600
601 if (mac->mode == WIRELESS_MODE_N_24G)
602 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
603 else if (mac->mode == WIRELESS_MODE_N_5G)
604 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
605 else if (mac->mode & WIRELESS_MODE_G)
606 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
607 else if (mac->mode & WIRELESS_MODE_B)
608 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
609 else if (mac->mode & WIRELESS_MODE_A)
610 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
611 } else if (mac->opmode == NL80211_IFTYPE_AP ||
612 mac->opmode == NL80211_IFTYPE_ADHOC) {
613 if (NULL != sta) {
614 if (sta->aid > 0)
615 tcb_desc->mac_id = sta->aid + 1;
616 else
617 tcb_desc->mac_id = 1;
618 } else {
619 tcb_desc->mac_id = 0;
620 }
0c817338
LF		 621 }
622 }
623
624}
625
626static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
acd48572 627 struct ieee80211_sta *sta,
0c817338
LF		 628 struct rtl_tcb_desc *tcb_desc)
629{
630 struct rtl_priv *rtlpriv = rtl_priv(hw);
631 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
632
7ea47240 633 tcb_desc->packet_bw = false;
acd48572 634 if (!sta)
0c817338 635 return;
acd48572
C		 636 if (mac->opmode == NL80211_IFTYPE_AP ||
637 mac->opmode == NL80211_IFTYPE_ADHOC) {
638 if (!(sta->ht_cap.ht_supported) ||
639 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
640 return;
641 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
642 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
643 return;
644 }
7ea47240 645 if (tcb_desc->multicast || tcb_desc->broadcast)
0c817338
LF		 646 return;
647
648 /*use legency rate, shall use 20MHz */
649 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
650 return;
651
7ea47240 652 tcb_desc->packet_bw = true;
0c817338
LF		 653}
654
655static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
656{
657 struct rtl_priv *rtlpriv = rtl_priv(hw);
658 struct rtl_phy *rtlphy = &(rtlpriv->phy);
659 u8 hw_rate;
660
661 if (get_rf_type(rtlphy) == RF_2T2R)
662 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
663 else
664 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
665
666 return hw_rate;
667}
668
7ad0ce35
LF		 669/* mac80211's rate_idx is like this:
670 *
671 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
672 *
673 * B/G rate:
674 * (rx_status->flag & RX_FLAG_HT) = 0,
675 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
676 *
677 * N rate:
678 * (rx_status->flag & RX_FLAG_HT) = 1,
679 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
680 *
681 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
682 * A rate:
683 * (rx_status->flag & RX_FLAG_HT) = 0,
684 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
685 *
686 * N rate:
687 * (rx_status->flag & RX_FLAG_HT) = 1,
688 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
689 */
690int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
691 bool isht, u8 desc_rate, bool first_ampdu)
692{
693 int rate_idx;
694
695 if (false == isht) {
696 if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) {
697 switch (desc_rate) {
698 case DESC92_RATE1M:
699 rate_idx = 0;
700 break;
701 case DESC92_RATE2M:
702 rate_idx = 1;
703 break;
704 case DESC92_RATE5_5M:
705 rate_idx = 2;
706 break;
707 case DESC92_RATE11M:
708 rate_idx = 3;
709 break;
710 case DESC92_RATE6M:
711 rate_idx = 4;
712 break;
713 case DESC92_RATE9M:
714 rate_idx = 5;
715 break;
716 case DESC92_RATE12M:
717 rate_idx = 6;
718 break;
719 case DESC92_RATE18M:
720 rate_idx = 7;
721 break;
722 case DESC92_RATE24M:
723 rate_idx = 8;
724 break;
725 case DESC92_RATE36M:
726 rate_idx = 9;
727 break;
728 case DESC92_RATE48M:
729 rate_idx = 10;
730 break;
731 case DESC92_RATE54M:
732 rate_idx = 11;
733 break;
734 default:
735 rate_idx = 0;
736 break;
737 }
738 } else {
739 switch (desc_rate) {
740 case DESC92_RATE6M:
741 rate_idx = 0;
742 break;
743 case DESC92_RATE9M:
744 rate_idx = 1;
745 break;
746 case DESC92_RATE12M:
747 rate_idx = 2;
748 break;
749 case DESC92_RATE18M:
750 rate_idx = 3;
751 break;
752 case DESC92_RATE24M:
753 rate_idx = 4;
754 break;
755 case DESC92_RATE36M:
756 rate_idx = 5;
757 break;
758 case DESC92_RATE48M:
759 rate_idx = 6;
760 break;
761 case DESC92_RATE54M:
762 rate_idx = 7;
763 break;
764 default:
765 rate_idx = 0;
766 break;
767 }
768 }
769
770 } else {
771
772 switch (desc_rate) {
773 case DESC92_RATEMCS0:
774 rate_idx = 0;
775 break;
776 case DESC92_RATEMCS1:
777 rate_idx = 1;
778 break;
779 case DESC92_RATEMCS2:
780 rate_idx = 2;
781 break;
782 case DESC92_RATEMCS3:
783 rate_idx = 3;
784 break;
785 case DESC92_RATEMCS4:
786 rate_idx = 4;
787 break;
788 case DESC92_RATEMCS5:
789 rate_idx = 5;
790 break;
791 case DESC92_RATEMCS6:
792 rate_idx = 6;
793 break;
794 case DESC92_RATEMCS7:
795 rate_idx = 7;
796 break;
797 case DESC92_RATEMCS8:
798 rate_idx = 8;
799 break;
800 case DESC92_RATEMCS9:
801 rate_idx = 9;
802 break;
803 case DESC92_RATEMCS10:
804 rate_idx = 10;
805 break;
806 case DESC92_RATEMCS11:
807 rate_idx = 11;
808 break;
809 case DESC92_RATEMCS12:
810 rate_idx = 12;
811 break;
812 case DESC92_RATEMCS13:
813 rate_idx = 13;
814 break;
815 case DESC92_RATEMCS14:
816 rate_idx = 14;
817 break;
818 case DESC92_RATEMCS15:
819 rate_idx = 15;
820 break;
821 default:
822 rate_idx = 0;
823 break;
824 }
825 }
826 return rate_idx;
827}
828EXPORT_SYMBOL(rtlwifi_rate_mapping);
829
0c817338
LF		 830void rtl_get_tcb_desc(struct ieee80211_hw *hw,
831 struct ieee80211_tx_info *info,
acd48572 832 struct ieee80211_sta *sta,
0c817338
LF		 833 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
834{
835 struct rtl_priv *rtlpriv = rtl_priv(hw);
836 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
acd48572 837 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 838 struct ieee80211_rate *txrate;
17c9ac62 839 __le16 fc = hdr->frame_control;
0c817338 840
acd48572
C		 841 txrate = ieee80211_get_tx_rate(hw, info);
842 tcb_desc->hw_rate = txrate->hw_value;
0c817338
LF		 843
844 if (ieee80211_is_data(fc)) {
0c817338 845 /*
acd48572 846 *we set data rate INX 0
0c817338
LF		 847 *in rtl_rc.c if skb is special data or
848 *mgt which need low data rate.
849 */
850
851 /*
852 *So tcb_desc->hw_rate is just used for
853 *special data and mgt frames
854 */
09e92f0b 855 if (info->control.rates[0].idx == 0 ||
acd48572 856 ieee80211_is_nullfunc(fc)) {
0c817338 857 tcb_desc->use_driver_rate = true;
acd48572 858 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338 859
0c817338
LF		 860 tcb_desc->disable_ratefallback = 1;
861 } else {
862 /*
863 *because hw will nerver use hw_rate
864 *when tcb_desc->use_driver_rate = false
865 *so we never set highest N rate here,
25985edc 866 *and N rate will all be controlled by FW
0c817338
LF		 867 *when tcb_desc->use_driver_rate = false
868 */
acd48572 869 if (sta && (sta->ht_cap.ht_supported)) {
0c817338
LF		 870 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
871 } else {
872 if (rtlmac->mode == WIRELESS_MODE_B) {
873 tcb_desc->hw_rate =
874 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
875 } else {
876 tcb_desc->hw_rate =
877 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
878 }
879 }
880 }
881
882 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
7ea47240 883 tcb_desc->multicast = 1;
0c817338 884 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
7ea47240 885 tcb_desc->broadcast = 1;
0c817338 886
acd48572
C		 887 _rtl_txrate_selectmode(hw, sta, tcb_desc);
888 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
0c817338 889 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
acd48572 890 _rtl_query_shortgi(hw, sta, tcb_desc, info);
0c817338
LF		 891 _rtl_query_protection_mode(hw, tcb_desc, info);
892 } else {
893 tcb_desc->use_driver_rate = true;
acd48572 894 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338
LF		 895 tcb_desc->disable_ratefallback = 1;
896 tcb_desc->mac_id = 0;
acd48572 897 tcb_desc->packet_bw = false;
0c817338
LF		 898 }
899}
900EXPORT_SYMBOL(rtl_get_tcb_desc);
901
0c817338
LF		 902bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
903{
904 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 905 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 906 struct rtl_priv *rtlpriv = rtl_priv(hw);
17c9ac62 907 __le16 fc = hdr->frame_control;
0c817338
LF		 908 u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN));
909 u8 category;
910
911 if (!ieee80211_is_action(fc))
912 return true;
913
914 category = *act;
915 act++;
916 switch (category) {
917 case ACT_CAT_BA:
918 switch (*act) {
919 case ACT_ADDBAREQ:
920 if (mac->act_scanning)
921 return false;
922
923 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507
JP		 924 "%s ACT_ADDBAREQ From :%pM\n",
925 is_tx ? "Tx" : "Rx", hdr->addr2);
0c817338
LF		 926 break;
927 case ACT_ADDBARSP:
928 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507
JP		 929 "%s ACT_ADDBARSP From :%pM\n",
930 is_tx ? "Tx" : "Rx", hdr->addr2);
0c817338
LF		 931 break;
932 case ACT_DELBA:
933 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507 934 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
0c817338
LF		 935 break;
936 }
937 break;
938 default:
939 break;
940 }
941
942 return true;
943}
944
945/*should call before software enc*/
946u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
947{
948 struct rtl_priv *rtlpriv = rtl_priv(hw);
0c817338 949 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
acd48572 950 __le16 fc = rtl_get_fc(skb);
0c817338
LF		 951 u16 ether_type;
952 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
953 const struct iphdr *ip;
954
955 if (!ieee80211_is_data(fc))
32473284 956 return false;
0c817338 957
0c817338
LF		 958
959 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
960 SNAP_SIZE + PROTOC_TYPE_SIZE);
961 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
d3bb1429 962 /* ether_type = ntohs(ether_type); */
0c817338
LF		 963
964 if (ETH_P_IP == ether_type) {
965 if (IPPROTO_UDP == ip->protocol) {
966 struct udphdr *udp = (struct udphdr *)((u8 *) ip +
967 (ip->ihl << 2));
968 if (((((u8 *) udp)[1] == 68) &&
969 (((u8 *) udp)[3] == 67)) ||
970 ((((u8 *) udp)[1] == 67) &&
971 (((u8 *) udp)[3] == 68))) {
972 /*
973 * 68 : UDP BOOTP client
974 * 67 : UDP BOOTP server
975 */
976 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
f30d7507
JP		 977 DBG_DMESG, "dhcp %s !!\n",
978 is_tx ? "Tx" : "Rx");
0c817338
LF		 979
980 if (is_tx) {
981 rtl_lps_leave(hw);
982 ppsc->last_delaylps_stamp_jiffies =
983 jiffies;
984 }
985
986 return true;
987 }
988 }
989 } else if (ETH_P_ARP == ether_type) {
990 if (is_tx) {
991 rtl_lps_leave(hw);
992 ppsc->last_delaylps_stamp_jiffies = jiffies;
993 }
994
995 return true;
996 } else if (ETH_P_PAE == ether_type) {
997 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507 998 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
0c817338
LF		 999
1000 if (is_tx) {
1001 rtl_lps_leave(hw);
1002 ppsc->last_delaylps_stamp_jiffies = jiffies;
1003 }
1004
1005 return true;
17c9ac62
LF		 1006 } else if (ETH_P_IPV6 == ether_type) {
1007 /* IPv6 */
0c817338
LF		 1008 return true;
1009 }
1010
0c817338
LF		 1011 return false;
1012}
1013
1014/*********************************************************
1015 *
1016 * functions called by core.c
1017 *
1018 *********************************************************/
acd48572
C		 1019int rtl_tx_agg_start(struct ieee80211_hw *hw,
1020 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
0c817338
LF		 1021{
1022 struct rtl_priv *rtlpriv = rtl_priv(hw);
1023 struct rtl_tid_data *tid_data;
1024 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1025 struct rtl_sta_info *sta_entry = NULL;
0c817338 1026
acd48572
C		 1027 if (sta == NULL)
1028 return -EINVAL;
0c817338
LF		 1029
1030 if (unlikely(tid >= MAX_TID_COUNT))
1031 return -EINVAL;
1032
acd48572
C		 1033 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1034 if (!sta_entry)
0c817338 1035 return -ENXIO;
acd48572 1036 tid_data = &sta_entry->tids[tid];
0c817338 1037
f30d7507
JP		 1038 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n",
1039 sta->addr, tid, tid_data->seq_number);
0c817338 1040
acd48572
C		 1041 *ssn = tid_data->seq_number;
1042 tid_data->agg.agg_state = RTL_AGG_START;
0c817338 1043
acd48572 1044 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338
LF		 1045
1046 return 0;
1047}
1048
acd48572
C		 1049int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1050 struct ieee80211_sta *sta, u16 tid)
0c817338 1051{
0c817338
LF		 1052 struct rtl_priv *rtlpriv = rtl_priv(hw);
1053 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1054 struct rtl_sta_info *sta_entry = NULL;
0c817338 1055
acd48572
C		 1056 if (sta == NULL)
1057 return -EINVAL;
0c817338 1058
acd48572 1059 if (!sta->addr) {
f30d7507 1060 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
0c817338
LF		 1061 return -EINVAL;
1062 }
1063
f30d7507
JP		 1064 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1065 sta->addr, tid);
acd48572 1066
0c817338
LF		 1067 if (unlikely(tid >= MAX_TID_COUNT))
1068 return -EINVAL;
1069
acd48572 1070 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1071 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
0c817338 1072
acd48572 1073 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338 1074
acd48572
C		 1075 return 0;
1076}
1077
1078int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1079 struct ieee80211_sta *sta, u16 tid)
1080{
1081 struct rtl_priv *rtlpriv = rtl_priv(hw);
acd48572 1082 struct rtl_sta_info *sta_entry = NULL;
0c817338 1083
acd48572
C		 1084 if (sta == NULL)
1085 return -EINVAL;
1086
1087 if (!sta->addr) {
f30d7507 1088 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
acd48572
C		 1089 return -EINVAL;
1090 }
0c817338 1091
f30d7507
JP		 1092 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1093 sta->addr, tid);
0c817338 1094
acd48572
C		 1095 if (unlikely(tid >= MAX_TID_COUNT))
1096 return -EINVAL;
0c817338 1097
acd48572 1098 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1099 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
0c817338
LF		 1100
1101 return 0;
1102}
1103
1104/*********************************************************
1105 *
1106 * wq & timer callback functions
1107 *
1108 *********************************************************/
1109void rtl_watchdog_wq_callback(void *data)
1110{
1111 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1112 struct rtl_works,
1113 watchdog_wq);
1114 struct ieee80211_hw *hw = rtlworks->hw;
1115 struct rtl_priv *rtlpriv = rtl_priv(hw);
1116 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1117 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
7ea47240
LF		 1118 bool busytraffic = false;
1119 bool higher_busytraffic = false;
1120 bool higher_busyrxtraffic = false;
acd48572 1121 u8 idx, tid;
0c817338
LF		 1122 u32 rx_cnt_inp4eriod = 0;
1123 u32 tx_cnt_inp4eriod = 0;
1124 u32 aver_rx_cnt_inperiod = 0;
1125 u32 aver_tx_cnt_inperiod = 0;
acd48572
C		 1126 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1127 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
7ea47240 1128 bool enter_ps = false;
0c817338
LF		 1129
1130 if (is_hal_stop(rtlhal))
1131 return;
1132
1133 /* <1> Determine if action frame is allowed */
1134 if (mac->link_state > MAC80211_NOLINK) {
1135 if (mac->cnt_after_linked < 20)
1136 mac->cnt_after_linked++;
1137 } else {
1138 mac->cnt_after_linked = 0;
1139 }
1140
0c817338 1141 /*
09e92f0b 1142 *<2> to check if traffic busy, if
0c817338
LF		 1143 * busytraffic we don't change channel
1144 */
1145 if (mac->link_state >= MAC80211_LINKED) {
1146
1147 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1148 for (idx = 0; idx <= 2; idx++) {
1149 rtlpriv->link_info.num_rx_in4period[idx] =
1150 rtlpriv->link_info.num_rx_in4period[idx + 1];
1151 rtlpriv->link_info.num_tx_in4period[idx] =
1152 rtlpriv->link_info.num_tx_in4period[idx + 1];
1153 }
1154 rtlpriv->link_info.num_rx_in4period[3] =
1155 rtlpriv->link_info.num_rx_inperiod;
1156 rtlpriv->link_info.num_tx_in4period[3] =
1157 rtlpriv->link_info.num_tx_inperiod;
1158 for (idx = 0; idx <= 3; idx++) {
1159 rx_cnt_inp4eriod +=
1160 rtlpriv->link_info.num_rx_in4period[idx];
1161 tx_cnt_inp4eriod +=
1162 rtlpriv->link_info.num_tx_in4period[idx];
1163 }
1164 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1165 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1166
1167 /* (2) check traffic busy */
1168 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100)
7ea47240 1169 busytraffic = true;
0c817338
LF		 1170
1171 /* Higher Tx/Rx data. */
1172 if (aver_rx_cnt_inperiod > 4000 ||
1173 aver_tx_cnt_inperiod > 4000) {
7ea47240 1174 higher_busytraffic = true;
0c817338
LF		 1175
1176 /* Extremely high Rx data. */
1177 if (aver_rx_cnt_inperiod > 5000)
7ea47240 1178 higher_busyrxtraffic = true;
acd48572
C		 1179 }
1180
1181 /* check every tid's tx traffic */
1182 for (tid = 0; tid <= 7; tid++) {
1183 for (idx = 0; idx <= 2; idx++)
1184 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1185 rtlpriv->link_info.tidtx_in4period[tid]
1186 [idx + 1];
1187 rtlpriv->link_info.tidtx_in4period[tid][3] =
1188 rtlpriv->link_info.tidtx_inperiod[tid];
1189
1190 for (idx = 0; idx <= 3; idx++)
1191 tidtx_inp4eriod[tid] +=
1192 rtlpriv->link_info.tidtx_in4period[tid][idx];
1193 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1194 if (aver_tidtx_inperiod[tid] > 5000)
1195 rtlpriv->link_info.higher_busytxtraffic[tid] =
1196 true;
0c817338 1197 else
acd48572
C		 1198 rtlpriv->link_info.higher_busytxtraffic[tid] =
1199 false;
0c817338
LF		 1200 }
1201
1202 if (((rtlpriv->link_info.num_rx_inperiod +
1203 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1204 (rtlpriv->link_info.num_rx_inperiod > 2))
7ea47240 1205 enter_ps = false;
0c817338 1206 else
7ea47240 1207 enter_ps = true;
0c817338
LF		 1208
1209 /* LeisurePS only work in infra mode. */
7ea47240 1210 if (enter_ps)
0c817338
LF		 1211 rtl_lps_enter(hw);
1212 else
1213 rtl_lps_leave(hw);
1214 }
1215
1216 rtlpriv->link_info.num_rx_inperiod = 0;
1217 rtlpriv->link_info.num_tx_inperiod = 0;
acd48572
C		 1218 for (tid = 0; tid <= 7; tid++)
1219 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
0c817338 1220
7ea47240
LF		 1221 rtlpriv->link_info.busytraffic = busytraffic;
1222 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1223 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
0c817338 1224
acd48572
C		 1225 /* <3> DM */
1226 rtlpriv->cfg->ops->dm_watchdog(hw);
0c817338
LF		 1227}
1228
1229void rtl_watch_dog_timer_callback(unsigned long data)
1230{
1231 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1232 struct rtl_priv *rtlpriv = rtl_priv(hw);
1233
1234 queue_delayed_work(rtlpriv->works.rtl_wq,
1235 &rtlpriv->works.watchdog_wq, 0);
1236
1237 mod_timer(&rtlpriv->works.watchdog_timer,
1238 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1239}
1240
acd48572
C		 1241/*********************************************************
1242 *
1243 * frame process functions
1244 *
1245 *********************************************************/
1246u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1247{
1248 struct ieee80211_mgmt *mgmt = (void *)data;
1249 u8 *pos, *end;
1250
1251 pos = (u8 *)mgmt->u.beacon.variable;
1252 end = data + len;
1253 while (pos < end) {
1254 if (pos + 2 + pos[1] > end)
1255 return NULL;
1256
1257 if (pos[0] == ie)
1258 return pos;
1259
1260 pos += 2 + pos[1];
1261 }
1262 return NULL;
1263}
1264
1265/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1266/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
d3bb1429 1267static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
acd48572
C		 1268 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1269{
1270 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1271 struct sk_buff *skb;
1272 struct ieee80211_mgmt *action_frame;
1273
1274 /* 27 = header + category + action + smps mode */
1275 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1276 if (!skb)
1277 return NULL;
1278
1279 skb_reserve(skb, hw->extra_tx_headroom);
1280 action_frame = (void *)skb_put(skb, 27);
1281 memset(action_frame, 0, 27);
1282 memcpy(action_frame->da, da, ETH_ALEN);
1283 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1284 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1285 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1286 IEEE80211_STYPE_ACTION);
1287 action_frame->u.action.category = WLAN_CATEGORY_HT;
1288 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1289 switch (smps) {
1290 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1291 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1292 WARN_ON(1);
1293 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1294 action_frame->u.action.u.ht_smps.smps_control =
1295 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1296 break;
1297 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1298 action_frame->u.action.u.ht_smps.smps_control =
1299 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1300 break;
1301 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1302 action_frame->u.action.u.ht_smps.smps_control =
1303 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1304 break;
1305 }
1306
1307 return skb;
1308}
1309
1310int rtl_send_smps_action(struct ieee80211_hw *hw,
1311 struct ieee80211_sta *sta, u8 *da, u8 *bssid,
1312 enum ieee80211_smps_mode smps)
1313{
1314 struct rtl_priv *rtlpriv = rtl_priv(hw);
1315 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1316 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1317 struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid);
1318 struct rtl_tcb_desc tcb_desc;
1319 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1320
1321 if (rtlpriv->mac80211.act_scanning)
1322 goto err_free;
1323
1324 if (!sta)
1325 goto err_free;
1326
1327 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1328 goto err_free;
1329
1330 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1331 goto err_free;
1332
1333 /* this is a type = mgmt * stype = action frame */
1334 if (skb) {
1335 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1336 struct rtl_sta_info *sta_entry =
1337 (struct rtl_sta_info *) sta->drv_priv;
1338 sta_entry->mimo_ps = smps;
1339 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
1340
1341 info->control.rates[0].idx = 0;
1342 info->control.sta = sta;
1343 info->band = hw->conf.channel->band;
acd48572 1344 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
acd48572 1345 }
acd48572
C		 1346err_free:
1347 return 0;
1348}
1349
1350/*********************************************************
1351 *
1352 * IOT functions
1353 *
1354 *********************************************************/
1355static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1356 struct octet_string vendor_ie)
1357{
1358 struct rtl_priv *rtlpriv = rtl_priv(hw);
1359 bool matched = false;
1360 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1361 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1362 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1363 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1364 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1365 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1366 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1367 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1368
1369 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1370 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1371 rtlpriv->mac80211.vendor = PEER_ATH;
1372 matched = true;
1373 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1374 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1375 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1376 rtlpriv->mac80211.vendor = PEER_BROAD;
1377 matched = true;
1378 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1379 rtlpriv->mac80211.vendor = PEER_RAL;
1380 matched = true;
1381 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1382 rtlpriv->mac80211.vendor = PEER_CISCO;
1383 matched = true;
1384 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1385 rtlpriv->mac80211.vendor = PEER_MARV;
1386 matched = true;
1387 }
1388
1389 return matched;
1390}
1391
d3bb1429 1392static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
acd48572
C		 1393 unsigned int len)
1394{
1395 struct ieee80211_mgmt *mgmt = (void *)data;
1396 struct octet_string vendor_ie;
1397 u8 *pos, *end;
1398
1399 pos = (u8 *)mgmt->u.beacon.variable;
1400 end = data + len;
1401 while (pos < end) {
1402 if (pos[0] == 221) {
1403 vendor_ie.length = pos[1];
1404 vendor_ie.octet = &pos[2];
1405 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1406 return true;
1407 }
1408
1409 if (pos + 2 + pos[1] > end)
1410 return false;
1411
1412 pos += 2 + pos[1];
1413 }
1414 return false;
1415}
1416
1417void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1418{
1419 struct rtl_priv *rtlpriv = rtl_priv(hw);
1420 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1421 struct ieee80211_hdr *hdr = (void *)data;
1422 u32 vendor = PEER_UNKNOWN;
1423
1424 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1425 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1426 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1427 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1428 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1429 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1430 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1431 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1432 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1433 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1434 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1435 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1436 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1437 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1438 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1439 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1440
1441 if (mac->opmode != NL80211_IFTYPE_STATION)
1442 return;
1443
1444 if (mac->link_state == MAC80211_NOLINK) {
1445 mac->vendor = PEER_UNKNOWN;
1446 return;
1447 }
1448
1449 if (mac->cnt_after_linked > 2)
1450 return;
1451
1452 /* check if this really is a beacon */
1453 if (!ieee80211_is_beacon(hdr->frame_control))
1454 return;
1455
1456 /* min. beacon length + FCS_LEN */
1457 if (len <= 40 + FCS_LEN)
1458 return;
1459
1460 /* and only beacons from the associated BSSID, please */
1461 if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
1462 return;
1463
1464 if (rtl_find_221_ie(hw, data, len))
1465 vendor = mac->vendor;
1466
1467 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1468 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1469 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1470 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1471 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1472 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1473 vendor == PEER_ATH) {
1474 vendor = PEER_ATH;
f30d7507 1475 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
acd48572
C		 1476 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1477 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1478 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1479 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1480 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1481 vendor == PEER_RAL) {
f30d7507 1482 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
acd48572
C		 1483 vendor = PEER_RAL;
1484 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1485 vendor == PEER_CISCO) {
1486 vendor = PEER_CISCO;
f30d7507 1487 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
acd48572
C		 1488 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1489 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1490 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1491 vendor == PEER_BROAD) {
f30d7507 1492 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
acd48572
C		 1493 vendor = PEER_BROAD;
1494 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1495 vendor == PEER_MARV) {
1496 vendor = PEER_MARV;
f30d7507 1497 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
acd48572
C		 1498 }
1499
1500 mac->vendor = vendor;
1501}
1502
0c817338
LF		 1503/*********************************************************
1504 *
1505 * sysfs functions
1506 *
1507 *********************************************************/
1508static ssize_t rtl_show_debug_level(struct device *d,
1509 struct device_attribute *attr, char *buf)
1510{
1511 struct ieee80211_hw *hw = dev_get_drvdata(d);
1512 struct rtl_priv *rtlpriv = rtl_priv(hw);
1513
1514 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1515}
1516
1517static ssize_t rtl_store_debug_level(struct device *d,
1518 struct device_attribute *attr,
1519 const char *buf, size_t count)
1520{
1521 struct ieee80211_hw *hw = dev_get_drvdata(d);
1522 struct rtl_priv *rtlpriv = rtl_priv(hw);
1523 unsigned long val;
1524 int ret;
1525
1526 ret = strict_strtoul(buf, 0, &val);
1527 if (ret) {
1528 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1529 } else {
1530 rtlpriv->dbg.global_debuglevel = val;
1531 printk(KERN_DEBUG "debuglevel:%x\n",
1532 rtlpriv->dbg.global_debuglevel);
1533 }
1534
1535 return strnlen(buf, count);
1536}
1537
1538static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1539 rtl_show_debug_level, rtl_store_debug_level);
1540
1541static struct attribute *rtl_sysfs_entries[] = {
1542
1543 &dev_attr_debug_level.attr,
1544
1545 NULL
1546};
1547
1548/*
1549 * "name" is folder name witch will be
1550 * put in device directory like :
1551 * sys/devices/pci0000:00/0000:00:1c.4/
1552 * 0000:06:00.0/rtl_sysfs
1553 */
1554struct attribute_group rtl_attribute_group = {
1555 .name = "rtlsysfs",
1556 .attrs = rtl_sysfs_entries,
1557};
1558
1559MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1560MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1561MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1562MODULE_LICENSE("GPL");
1563MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1564
1565static int __init rtl_core_module_init(void)
1566{
375ff4c7 1567 if (rtl_rate_control_register())
292b1192 1568 pr_err("Unable to register rtl_rc, use default RC !!\n");
acd48572 1569
0c817338
LF		 1570 return 0;
1571}
1572
1573static void __exit rtl_core_module_exit(void)
1574{
acd48572 1575 /*RC*/
375ff4c7 1576 rtl_rate_control_unregister();
0c817338
LF		 1577}
1578
1579module_init(rtl_core_module_init);
1580module_exit(rtl_core_module_exit);
Linux kernel - Deliverables
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