projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ath9k: dfs_debug fix possible NULL dereference
[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 41/*
e1fa7460
TP		 42 *NOTICE!!!: This file will be very big, we should
43 *keep it clear under following roles:
0c817338 44 *
e1fa7460 45 *This file include following parts, so, if you add new
0c817338
LF		 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
26634c4b
LF		 57 *8) vif functions
58 *9) ...
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
2a00def4 171u8 rtl_tid_to_ac(u8 tid)
acd48572
C		 172{
173 return tid_to_ac[tid];
174}
6f334c2b 175EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
acd48572 176
0c817338
LF		 177static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
178 struct ieee80211_sta_ht_cap *ht_cap)
179{
180 struct rtl_priv *rtlpriv = rtl_priv(hw);
181 struct rtl_phy *rtlphy = &(rtlpriv->phy);
182
183 ht_cap->ht_supported = true;
184 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
185 IEEE80211_HT_CAP_SGI_40 |
186 IEEE80211_HT_CAP_SGI_20 |
187 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
188
acd48572
C		 189 if (rtlpriv->rtlhal.disable_amsdu_8k)
190 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
191
0c817338
LF		 192 /*
193 *Maximum length of AMPDU that the STA can receive.
194 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
195 */
196 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
197
198 /*Minimum MPDU start spacing , */
199 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
200
201 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
202
26634c4b 203 /*hw->wiphy->bands[IEEE80211_BAND_2GHZ]
0c817338
LF		 204 *base on ant_num
205 *rx_mask: RX mask
26634c4b
LF		 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;
0c817338
LF		 210 *highest supported RX rate
211 */
26634c4b 212 if (rtlpriv->dm.supp_phymode_switch) {
0c817338 213
26634c4b
LF		 214 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
215 "Support phy mode switch\n");
0c817338
LF		 216
217 ht_cap->mcs.rx_mask[0] = 0xFF;
218 ht_cap->mcs.rx_mask[1] = 0xFF;
219 ht_cap->mcs.rx_mask[4] = 0x01;
220
17c9ac62 221 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
26634c4b
LF		 222 } else {
223 if (get_rf_type(rtlphy) == RF_1T2R ||
224 get_rf_type(rtlphy) == RF_2T2R) {
225 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
226 "1T2R or 2T2R\n");
227 ht_cap->mcs.rx_mask[0] = 0xFF;
228 ht_cap->mcs.rx_mask[1] = 0xFF;
229 ht_cap->mcs.rx_mask[4] = 0x01;
230
231 ht_cap->mcs.rx_highest =
232 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
233 } else if (get_rf_type(rtlphy) == RF_1T1R) {
234 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
235
236 ht_cap->mcs.rx_mask[0] = 0xFF;
237 ht_cap->mcs.rx_mask[1] = 0x00;
238 ht_cap->mcs.rx_mask[4] = 0x01;
239
240 ht_cap->mcs.rx_highest =
241 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
242 }
0c817338
LF		 243 }
244}
245
246static void _rtl_init_mac80211(struct ieee80211_hw *hw)
247{
acd48572
C		 248 struct rtl_priv *rtlpriv = rtl_priv(hw);
249 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
0c817338
LF		 250 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
251 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
252 struct ieee80211_supported_band *sband;
253
0c817338 254
acd48572
C		 255 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset ==
256 BAND_ON_BOTH) {
257 /* 1: 2.4 G bands */
258 /* <1> use mac->bands as mem for hw->wiphy->bands */
259 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
0c817338 260
acd48572
C		 261 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
262 * to default value(1T1R) */
263 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz,
264 sizeof(struct ieee80211_supported_band));
0c817338 265
acd48572
C		 266 /* <3> init ht cap base on ant_num */
267 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
0c817338 268
acd48572
C		 269 /* <4> set mac->sband to wiphy->sband */
270 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
0c817338 271
acd48572
C		 272 /* 2: 5 G bands */
273 /* <1> use mac->bands as mem for hw->wiphy->bands */
274 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
275
276 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
277 * to default value(1T1R) */
278 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz,
279 sizeof(struct ieee80211_supported_band));
280
281 /* <3> init ht cap base on ant_num */
282 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
283
284 /* <4> set mac->sband to wiphy->sband */
285 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
286 } else {
287 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
288 /* <1> use mac->bands as mem for hw->wiphy->bands */
289 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]);
290
291 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ]
292 * to default value(1T1R) */
293 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]),
294 &rtl_band_2ghz,
295 sizeof(struct ieee80211_supported_band));
296
297 /* <3> init ht cap base on ant_num */
298 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
299
300 /* <4> set mac->sband to wiphy->sband */
301 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
302 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
303 /* <1> use mac->bands as mem for hw->wiphy->bands */
304 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]);
305
306 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ]
307 * to default value(1T1R) */
308 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]),
309 &rtl_band_5ghz,
310 sizeof(struct ieee80211_supported_band));
311
312 /* <3> init ht cap base on ant_num */
313 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
314
315 /* <4> set mac->sband to wiphy->sband */
316 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
317 } else {
f30d7507
JP		 318 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n",
319 rtlhal->current_bandtype);
acd48572
C		 320 }
321 }
0c817338
LF		 322 /* <5> set hw caps */
323 hw->flags = IEEE80211_HW_SIGNAL_DBM |
324 IEEE80211_HW_RX_INCLUDES_FCS |
acd48572 325 IEEE80211_HW_AMPDU_AGGREGATION |
09e92f0b
CL		 326 IEEE80211_HW_CONNECTION_MONITOR |
327 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
26634c4b
LF		 328 IEEE80211_HW_CONNECTION_MONITOR |
329 IEEE80211_HW_MFP_CAPABLE |
0c817338
LF		 330 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
331
acd48572
C		 332 /* swlps or hwlps has been set in diff chip in init_sw_vars */
333 if (rtlpriv->psc.swctrl_lps)
334 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
335 IEEE80211_HW_PS_NULLFUNC_STACK |
336 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */
337 0;
338
0c817338 339 hw->wiphy->interface_modes =
acd48572
C		 340 BIT(NL80211_IFTYPE_AP) |
341 BIT(NL80211_IFTYPE_STATION) |
26634c4b
LF		 342 BIT(NL80211_IFTYPE_ADHOC) |
343 BIT(NL80211_IFTYPE_MESH_POINT) |
344 BIT(NL80211_IFTYPE_P2P_CLIENT) |
345 BIT(NL80211_IFTYPE_P2P_GO);
0c817338 346
26634c4b 347 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
0c817338
LF		 348 hw->wiphy->rts_threshold = 2347;
349
350 hw->queues = AC_MAX;
351 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
352
353 /* TODO: Correct this value for our hw */
354 /* TODO: define these hard code value */
355 hw->channel_change_time = 100;
acd48572 356 hw->max_listen_interval = 10;
0c817338
LF		 357 hw->max_rate_tries = 4;
358 /* hw->max_rates = 1; */
acd48572 359 hw->sta_data_size = sizeof(struct rtl_sta_info);
0c817338
LF		 360
361 /* <6> mac address */
362 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
363 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
364 } else {
abfabc9b
LF		 365 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
366 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
367 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
0c817338
LF		 368 }
369
370}
371
372static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
373{
374 struct rtl_priv *rtlpriv = rtl_priv(hw);
375
376 /* <1> timer */
0c817338
LF		 377 setup_timer(&rtlpriv->works.watchdog_timer,
378 rtl_watch_dog_timer_callback, (unsigned long)hw);
26634c4b
LF		 379 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
380 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
0c817338
LF		 381
382 /* <2> work queue */
383 rtlpriv->works.hw = hw;
d8537548 384 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
0c817338
LF		 385 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
386 (void *)rtl_watchdog_wq_callback);
387 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
388 (void *)rtl_ips_nic_off_wq_callback);
acd48572
C		 389 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
390 (void *)rtl_swlps_wq_callback);
391 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
392 (void *)rtl_swlps_rfon_wq_callback);
26634c4b
LF		 393 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
394 (void *)rtl_fwevt_wq_callback);
0c817338
LF		 395
396}
397
398void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
399{
400 struct rtl_priv *rtlpriv = rtl_priv(hw);
401
402 del_timer_sync(&rtlpriv->works.watchdog_timer);
403
404 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
405 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
acd48572
C		 406 cancel_delayed_work(&rtlpriv->works.ps_work);
407 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
26634c4b 408 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
0c817338 409}
6f334c2b 410EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
0c817338
LF		 411
412void rtl_init_rfkill(struct ieee80211_hw *hw)
413{
414 struct rtl_priv *rtlpriv = rtl_priv(hw);
415
416 bool radio_state;
417 bool blocked;
418 u8 valid = 0;
419
228bdfca 420 /*set init state to on */
3db1cd5c 421 rtlpriv->rfkill.rfkill_state = true;
228bdfca 422 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
0c817338 423
228bdfca 424 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
0c817338 425
e6d8a817 426 if (valid) {
292b1192
JP		 427 pr_info("wireless switch is %s\n",
428 rtlpriv->rfkill.rfkill_state ? "on" : "off");
228bdfca 429
0c817338
LF		 430 rtlpriv->rfkill.rfkill_state = radio_state;
431
432 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
433 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
434 }
435
436 wiphy_rfkill_start_polling(hw->wiphy);
437}
b0302aba 438EXPORT_SYMBOL(rtl_init_rfkill);
0c817338
LF		 439
440void rtl_deinit_rfkill(struct ieee80211_hw *hw)
441{
442 wiphy_rfkill_stop_polling(hw->wiphy);
443}
6f334c2b 444EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
0c817338
LF		 445
446int rtl_init_core(struct ieee80211_hw *hw)
447{
448 struct rtl_priv *rtlpriv = rtl_priv(hw);
449 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
450
451 /* <1> init mac80211 */
452 _rtl_init_mac80211(hw);
453 rtlmac->hw = hw;
454
455 /* <2> rate control register */
375ff4c7 456 hw->rate_control_algorithm = "rtl_rc";
0c817338
LF		 457
458 /*
459 * <3> init CRDA must come after init
460 * mac80211 hw in _rtl_init_mac80211.
461 */
462 if (rtl_regd_init(hw, rtl_reg_notifier)) {
f30d7507 463 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n");
0c817338 464 return 1;
0c817338
LF		 465 }
466
467 /* <4> locks */
8a09d6d8 468 mutex_init(&rtlpriv->locks.conf_mutex);
6539306b 469 mutex_init(&rtlpriv->locks.ps_mutex);
b9116b9a 470 spin_lock_init(&rtlpriv->locks.ips_lock);
0c817338 471 spin_lock_init(&rtlpriv->locks.irq_th_lock);
26634c4b
LF		 472 spin_lock_init(&rtlpriv->locks.irq_pci_lock);
473 spin_lock_init(&rtlpriv->locks.tx_lock);
0c817338
LF		 474 spin_lock_init(&rtlpriv->locks.h2c_lock);
475 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
476 spin_lock_init(&rtlpriv->locks.rf_lock);
acd48572 477 spin_lock_init(&rtlpriv->locks.waitq_lock);
26634c4b 478 spin_lock_init(&rtlpriv->locks.entry_list_lock);
e6deaf81 479 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
acd48572 480 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
26634c4b
LF		 481 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
482 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
483 spin_lock_init(&rtlpriv->locks.lps_lock);
484
485 /* <5> init list */
486 INIT_LIST_HEAD(&rtlpriv->entry_list);
0c817338
LF		 487
488 rtlmac->link_state = MAC80211_NOLINK;
489
26634c4b 490 /* <6> init deferred work */
0c817338
LF		 491 _rtl_init_deferred_work(hw);
492
493 return 0;
494}
6f334c2b 495EXPORT_SYMBOL_GPL(rtl_init_core);
0c817338
LF		 496
497void rtl_deinit_core(struct ieee80211_hw *hw)
498{
0c817338 499}
6f334c2b 500EXPORT_SYMBOL_GPL(rtl_deinit_core);
0c817338
LF		 501
502void rtl_init_rx_config(struct ieee80211_hw *hw)
503{
504 struct rtl_priv *rtlpriv = rtl_priv(hw);
505 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
506
507 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
0c817338 508}
6f334c2b 509EXPORT_SYMBOL_GPL(rtl_init_rx_config);
0c817338
LF		 510
511/*********************************************************
512 *
513 * tx information functions
514 *
515 *********************************************************/
516static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
517 struct rtl_tcb_desc *tcb_desc,
518 struct ieee80211_tx_info *info)
519{
520 struct rtl_priv *rtlpriv = rtl_priv(hw);
521 u8 rate_flag = info->control.rates[0].flags;
522
523 tcb_desc->use_shortpreamble = false;
524
525 /* 1M can only use Long Preamble. 11B spec */
526 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
527 return;
528 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
529 tcb_desc->use_shortpreamble = true;
530
531 return;
532}
533
534static void _rtl_query_shortgi(struct ieee80211_hw *hw,
acd48572 535 struct ieee80211_sta *sta,
0c817338
LF		 536 struct rtl_tcb_desc *tcb_desc,
537 struct ieee80211_tx_info *info)
538{
539 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
540 u8 rate_flag = info->control.rates[0].flags;
acd48572 541 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
0c817338
LF		 542 tcb_desc->use_shortgi = false;
543
acd48572 544 if (sta == NULL)
0c817338
LF		 545 return;
546
acd48572
C		 547 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
548 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
549
550 if (!(sta->ht_cap.ht_supported))
0c817338
LF		 551 return;
552
acd48572 553 if (!sgi_40 && !sgi_20)
0c817338
LF		 554 return;
555
acd48572
C		 556 if (mac->opmode == NL80211_IFTYPE_STATION)
557 bw_40 = mac->bw_40;
558 else if (mac->opmode == NL80211_IFTYPE_AP ||
26634c4b
LF		 559 mac->opmode == NL80211_IFTYPE_ADHOC ||
560 mac->opmode == NL80211_IFTYPE_MESH_POINT)
e1a0c6b3 561 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
acd48572 562
e10542c4 563 if (bw_40 && sgi_40)
0c817338 564 tcb_desc->use_shortgi = true;
acd48572 565 else if ((bw_40 == false) && sgi_20)
0c817338
LF		 566 tcb_desc->use_shortgi = true;
567
568 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
569 tcb_desc->use_shortgi = false;
0c817338
LF		 570}
571
572static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
573 struct rtl_tcb_desc *tcb_desc,
574 struct ieee80211_tx_info *info)
575{
576 struct rtl_priv *rtlpriv = rtl_priv(hw);
577 u8 rate_flag = info->control.rates[0].flags;
578
579 /* Common Settings */
7ea47240
LF		 580 tcb_desc->rts_stbc = false;
581 tcb_desc->cts_enable = false;
0c817338 582 tcb_desc->rts_sc = 0;
7ea47240
LF		 583 tcb_desc->rts_bw = false;
584 tcb_desc->rts_use_shortpreamble = false;
585 tcb_desc->rts_use_shortgi = false;
0c817338
LF		 586
587 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
588 /* Use CTS-to-SELF in protection mode. */
7ea47240
LF		 589 tcb_desc->rts_enable = true;
590 tcb_desc->cts_enable = true;
0c817338
LF		 591 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
592 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
593 /* Use RTS-CTS in protection mode. */
7ea47240 594 tcb_desc->rts_enable = true;
0c817338
LF		 595 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
596 }
0c817338
LF		 597}
598
599static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
acd48572 600 struct ieee80211_sta *sta,
0c817338
LF		 601 struct rtl_tcb_desc *tcb_desc)
602{
603 struct rtl_priv *rtlpriv = rtl_priv(hw);
604 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572
C		 605 struct rtl_sta_info *sta_entry = NULL;
606 u8 ratr_index = 7;
0c817338 607
acd48572
C		 608 if (sta) {
609 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
610 ratr_index = sta_entry->ratr_index;
611 }
0c817338 612 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
acd48572 613 if (mac->opmode == NL80211_IFTYPE_STATION) {
0c817338 614 tcb_desc->ratr_index = 0;
26634c4b
LF		 615 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
616 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
7ea47240 617 if (tcb_desc->multicast || tcb_desc->broadcast) {
0c817338
LF		 618 tcb_desc->hw_rate =
619 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
620 tcb_desc->use_driver_rate = 1;
26634c4b 621 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338 622 } else {
26634c4b 623 tcb_desc->ratr_index = ratr_index;
0c817338 624 }
acd48572
C		 625 } else if (mac->opmode == NL80211_IFTYPE_AP) {
626 tcb_desc->ratr_index = ratr_index;
0c817338
LF		 627 }
628 }
629
7ea47240 630 if (rtlpriv->dm.useramask) {
26634c4b
LF		 631 tcb_desc->ratr_index = ratr_index;
632 /* TODO we will differentiate adhoc and station future */
633 if (mac->opmode == NL80211_IFTYPE_STATION ||
634 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
acd48572
C		 635 tcb_desc->mac_id = 0;
636
637 if (mac->mode == WIRELESS_MODE_N_24G)
638 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
639 else if (mac->mode == WIRELESS_MODE_N_5G)
640 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
641 else if (mac->mode & WIRELESS_MODE_G)
642 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
643 else if (mac->mode & WIRELESS_MODE_B)
644 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
645 else if (mac->mode & WIRELESS_MODE_A)
646 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
647 } else if (mac->opmode == NL80211_IFTYPE_AP ||
26634c4b 648 mac->opmode == NL80211_IFTYPE_ADHOC) {
acd48572
C		 649 if (NULL != sta) {
650 if (sta->aid > 0)
651 tcb_desc->mac_id = sta->aid + 1;
652 else
653 tcb_desc->mac_id = 1;
654 } else {
655 tcb_desc->mac_id = 0;
656 }
0c817338
LF		 657 }
658 }
0c817338
LF		 659}
660
661static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
acd48572 662 struct ieee80211_sta *sta,
0c817338
LF		 663 struct rtl_tcb_desc *tcb_desc)
664{
665 struct rtl_priv *rtlpriv = rtl_priv(hw);
666 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
667
7ea47240 668 tcb_desc->packet_bw = false;
acd48572 669 if (!sta)
0c817338 670 return;
acd48572 671 if (mac->opmode == NL80211_IFTYPE_AP ||
26634c4b
LF		 672 mac->opmode == NL80211_IFTYPE_ADHOC ||
673 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
e1a0c6b3 674 if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
acd48572
C		 675 return;
676 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
677 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
678 return;
679 }
7ea47240 680 if (tcb_desc->multicast || tcb_desc->broadcast)
0c817338
LF		 681 return;
682
683 /*use legency rate, shall use 20MHz */
684 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
685 return;
686
7ea47240 687 tcb_desc->packet_bw = true;
0c817338
LF		 688}
689
690static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw)
691{
692 struct rtl_priv *rtlpriv = rtl_priv(hw);
693 struct rtl_phy *rtlphy = &(rtlpriv->phy);
694 u8 hw_rate;
695
696 if (get_rf_type(rtlphy) == RF_2T2R)
697 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
698 else
699 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
700
701 return hw_rate;
702}
703
7ad0ce35
LF		 704/* mac80211's rate_idx is like this:
705 *
706 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ
707 *
708 * B/G rate:
709 * (rx_status->flag & RX_FLAG_HT) = 0,
710 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11,
711 *
712 * N rate:
713 * (rx_status->flag & RX_FLAG_HT) = 1,
714 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
715 *
716 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ
717 * A rate:
718 * (rx_status->flag & RX_FLAG_HT) = 0,
719 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7,
720 *
721 * N rate:
722 * (rx_status->flag & RX_FLAG_HT) = 1,
723 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15
724 */
725int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
726 bool isht, u8 desc_rate, bool first_ampdu)
727{
728 int rate_idx;
729
730 if (false == isht) {
675a0b04 731 if (IEEE80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
7ad0ce35
LF		 732 switch (desc_rate) {
733 case DESC92_RATE1M:
734 rate_idx = 0;
735 break;
736 case DESC92_RATE2M:
737 rate_idx = 1;
738 break;
739 case DESC92_RATE5_5M:
740 rate_idx = 2;
741 break;
742 case DESC92_RATE11M:
743 rate_idx = 3;
744 break;
745 case DESC92_RATE6M:
746 rate_idx = 4;
747 break;
748 case DESC92_RATE9M:
749 rate_idx = 5;
750 break;
751 case DESC92_RATE12M:
752 rate_idx = 6;
753 break;
754 case DESC92_RATE18M:
755 rate_idx = 7;
756 break;
757 case DESC92_RATE24M:
758 rate_idx = 8;
759 break;
760 case DESC92_RATE36M:
761 rate_idx = 9;
762 break;
763 case DESC92_RATE48M:
764 rate_idx = 10;
765 break;
766 case DESC92_RATE54M:
767 rate_idx = 11;
768 break;
769 default:
770 rate_idx = 0;
771 break;
772 }
773 } else {
774 switch (desc_rate) {
775 case DESC92_RATE6M:
776 rate_idx = 0;
777 break;
778 case DESC92_RATE9M:
779 rate_idx = 1;
780 break;
781 case DESC92_RATE12M:
782 rate_idx = 2;
783 break;
784 case DESC92_RATE18M:
785 rate_idx = 3;
786 break;
787 case DESC92_RATE24M:
788 rate_idx = 4;
789 break;
790 case DESC92_RATE36M:
791 rate_idx = 5;
792 break;
793 case DESC92_RATE48M:
794 rate_idx = 6;
795 break;
796 case DESC92_RATE54M:
797 rate_idx = 7;
798 break;
799 default:
800 rate_idx = 0;
801 break;
802 }
803 }
804
805 } else {
806
807 switch (desc_rate) {
808 case DESC92_RATEMCS0:
809 rate_idx = 0;
810 break;
811 case DESC92_RATEMCS1:
812 rate_idx = 1;
813 break;
814 case DESC92_RATEMCS2:
815 rate_idx = 2;
816 break;
817 case DESC92_RATEMCS3:
818 rate_idx = 3;
819 break;
820 case DESC92_RATEMCS4:
821 rate_idx = 4;
822 break;
823 case DESC92_RATEMCS5:
824 rate_idx = 5;
825 break;
826 case DESC92_RATEMCS6:
827 rate_idx = 6;
828 break;
829 case DESC92_RATEMCS7:
830 rate_idx = 7;
831 break;
832 case DESC92_RATEMCS8:
833 rate_idx = 8;
834 break;
835 case DESC92_RATEMCS9:
836 rate_idx = 9;
837 break;
838 case DESC92_RATEMCS10:
839 rate_idx = 10;
840 break;
841 case DESC92_RATEMCS11:
842 rate_idx = 11;
843 break;
844 case DESC92_RATEMCS12:
845 rate_idx = 12;
846 break;
847 case DESC92_RATEMCS13:
848 rate_idx = 13;
849 break;
850 case DESC92_RATEMCS14:
851 rate_idx = 14;
852 break;
853 case DESC92_RATEMCS15:
854 rate_idx = 15;
855 break;
856 default:
857 rate_idx = 0;
858 break;
859 }
860 }
861 return rate_idx;
862}
863EXPORT_SYMBOL(rtlwifi_rate_mapping);
864
0f015453
LF		 865bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
866{
867 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
868 struct rtl_priv *rtlpriv = rtl_priv(hw);
869 __le16 fc = rtl_get_fc(skb);
870
871 if (rtlpriv->dm.supp_phymode_switch &&
872 mac->link_state < MAC80211_LINKED &&
873 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
26634c4b
LF		 874 if (rtlpriv->cfg->ops->chk_switch_dmdp)
875 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
0f015453
LF		 876 }
877 if (ieee80211_is_auth(fc)) {
878 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
879 rtl_ips_nic_on(hw);
880
881 mac->link_state = MAC80211_LINKING;
882 /* Dual mac */
883 rtlpriv->phy.need_iqk = true;
884 }
885
886 return true;
887}
6f334c2b 888EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
0f015453 889
0c817338
LF		 890void rtl_get_tcb_desc(struct ieee80211_hw *hw,
891 struct ieee80211_tx_info *info,
acd48572 892 struct ieee80211_sta *sta,
0c817338
LF		 893 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
894{
895 struct rtl_priv *rtlpriv = rtl_priv(hw);
896 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
acd48572 897 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 898 struct ieee80211_rate *txrate;
17c9ac62 899 __le16 fc = hdr->frame_control;
0c817338 900
acd48572 901 txrate = ieee80211_get_tx_rate(hw, info);
e89f7690
LF		 902 if (txrate)
903 tcb_desc->hw_rate = txrate->hw_value;
904 else
905 tcb_desc->hw_rate = 0;
0c817338
LF		 906
907 if (ieee80211_is_data(fc)) {
0c817338 908 /*
acd48572 909 *we set data rate INX 0
0c817338
LF		 910 *in rtl_rc.c if skb is special data or
911 *mgt which need low data rate.
912 */
913
914 /*
915 *So tcb_desc->hw_rate is just used for
916 *special data and mgt frames
917 */
09e92f0b 918 if (info->control.rates[0].idx == 0 ||
acd48572 919 ieee80211_is_nullfunc(fc)) {
0c817338 920 tcb_desc->use_driver_rate = true;
acd48572 921 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338 922
0c817338
LF		 923 tcb_desc->disable_ratefallback = 1;
924 } else {
925 /*
926 *because hw will nerver use hw_rate
927 *when tcb_desc->use_driver_rate = false
928 *so we never set highest N rate here,
25985edc 929 *and N rate will all be controlled by FW
0c817338
LF		 930 *when tcb_desc->use_driver_rate = false
931 */
acd48572 932 if (sta && (sta->ht_cap.ht_supported)) {
0c817338
LF		 933 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw);
934 } else {
935 if (rtlmac->mode == WIRELESS_MODE_B) {
936 tcb_desc->hw_rate =
937 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
938 } else {
939 tcb_desc->hw_rate =
940 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
941 }
942 }
943 }
944
945 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
7ea47240 946 tcb_desc->multicast = 1;
0c817338 947 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
7ea47240 948 tcb_desc->broadcast = 1;
0c817338 949
acd48572
C		 950 _rtl_txrate_selectmode(hw, sta, tcb_desc);
951 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
0c817338 952 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
acd48572 953 _rtl_query_shortgi(hw, sta, tcb_desc, info);
0c817338
LF		 954 _rtl_query_protection_mode(hw, tcb_desc, info);
955 } else {
956 tcb_desc->use_driver_rate = true;
acd48572 957 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
0c817338
LF		 958 tcb_desc->disable_ratefallback = 1;
959 tcb_desc->mac_id = 0;
acd48572 960 tcb_desc->packet_bw = false;
0c817338
LF		 961 }
962}
963EXPORT_SYMBOL(rtl_get_tcb_desc);
964
26634c4b
LF		 965static bool addbareq_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
966{
967 struct rtl_priv *rtlpriv = rtl_priv(hw);
968 struct ieee80211_sta *sta = NULL;
969 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
970 struct rtl_sta_info *sta_entry = NULL;
971 struct ieee80211_mgmt *mgmt = (void *)skb->data;
972 u16 capab = 0, tid = 0;
973 struct rtl_tid_data *tid_data;
974 struct sk_buff *skb_delba = NULL;
975 struct ieee80211_rx_status rx_status = { 0 };
976
977 rcu_read_lock();
978 sta = rtl_find_sta(hw, hdr->addr3);
979 if (sta == NULL) {
980 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_EMERG,
981 "sta is NULL\n");
982 rcu_read_unlock();
983 return true;
984 }
985
986 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
987 if (!sta_entry) {
988 rcu_read_unlock();
989 return true;
990 }
991 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
992 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
993 tid_data = &sta_entry->tids[tid];
994 if (tid_data->agg.rx_agg_state == RTL_RX_AGG_START) {
995 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
996 if (skb_delba) {
655d8e23
JL		 997 rx_status.freq = hw->conf.chandef.chan->center_freq;
998 rx_status.band = hw->conf.chandef.chan->band;
26634c4b
LF		 999 rx_status.flag |= RX_FLAG_DECRYPTED;
1000 rx_status.flag |= RX_FLAG_MACTIME_END;
1001 rx_status.rate_idx = 0;
1002 rx_status.signal = 50 + 10;
1003 memcpy(IEEE80211_SKB_RXCB(skb_delba), &rx_status,
1004 sizeof(rx_status));
1005 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1006 "fake del\n", skb_delba->data,
1007 skb_delba->len);
1008 ieee80211_rx_irqsafe(hw, skb_delba);
1009 }
1010 }
1011 rcu_read_unlock();
1012 return false;
1013}
1014
0c817338
LF		 1015bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1016{
1017 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1018 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
0c817338 1019 struct rtl_priv *rtlpriv = rtl_priv(hw);
17c9ac62 1020 __le16 fc = hdr->frame_control;
2c208890 1021 u8 *act = (u8 *)skb->data + MAC80211_3ADDR_LEN;
0c817338
LF		 1022 u8 category;
1023
1024 if (!ieee80211_is_action(fc))
1025 return true;
1026
1027 category = *act;
1028 act++;
1029 switch (category) {
1030 case ACT_CAT_BA:
1031 switch (*act) {
1032 case ACT_ADDBAREQ:
1033 if (mac->act_scanning)
1034 return false;
1035
1036 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507
JP		 1037 "%s ACT_ADDBAREQ From :%pM\n",
1038 is_tx ? "Tx" : "Rx", hdr->addr2);
26634c4b
LF		 1039 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1040 skb->data, skb->len);
1041 if (!is_tx)
1042 if (addbareq_rx(hw, skb))
1043 return true;
0c817338
LF		 1044 break;
1045 case ACT_ADDBARSP:
1046 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507
JP		 1047 "%s ACT_ADDBARSP From :%pM\n",
1048 is_tx ? "Tx" : "Rx", hdr->addr2);
0c817338
LF		 1049 break;
1050 case ACT_DELBA:
1051 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507 1052 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
0c817338
LF		 1053 break;
1054 }
1055 break;
1056 default:
1057 break;
1058 }
1059
1060 return true;
1061}
6f334c2b 1062EXPORT_SYMBOL_GPL(rtl_action_proc);
0c817338
LF		 1063
1064/*should call before software enc*/
1065u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1066{
1067 struct rtl_priv *rtlpriv = rtl_priv(hw);
0c817338 1068 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
acd48572 1069 __le16 fc = rtl_get_fc(skb);
0c817338
LF		 1070 u16 ether_type;
1071 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1072 const struct iphdr *ip;
1073
1074 if (!ieee80211_is_data(fc))
32473284 1075 return false;
0c817338 1076
0c817338
LF		 1077
1078 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
1079 SNAP_SIZE + PROTOC_TYPE_SIZE);
1080 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
d3bb1429 1081 /* ether_type = ntohs(ether_type); */
0c817338
LF		 1082
1083 if (ETH_P_IP == ether_type) {
1084 if (IPPROTO_UDP == ip->protocol) {
1085 struct udphdr *udp = (struct udphdr *)((u8 *) ip +
1086 (ip->ihl << 2));
1087 if (((((u8 *) udp)[1] == 68) &&
1088 (((u8 *) udp)[3] == 67)) ||
1089 ((((u8 *) udp)[1] == 67) &&
1090 (((u8 *) udp)[3] == 68))) {
1091 /*
1092 * 68 : UDP BOOTP client
1093 * 67 : UDP BOOTP server
1094 */
1095 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
f30d7507
JP		 1096 DBG_DMESG, "dhcp %s !!\n",
1097 is_tx ? "Tx" : "Rx");
0c817338
LF		 1098
1099 if (is_tx) {
a269913c 1100 rtlpriv->enter_ps = false;
a5ffbe0a 1101 schedule_work(&rtlpriv->
a269913c 1102 works.lps_change_work);
0c817338
LF		 1103 ppsc->last_delaylps_stamp_jiffies =
1104 jiffies;
1105 }
1106
1107 return true;
1108 }
1109 }
1110 } else if (ETH_P_ARP == ether_type) {
1111 if (is_tx) {
a269913c
LF		 1112 rtlpriv->enter_ps = false;
1113 schedule_work(&rtlpriv->works.lps_change_work);
0c817338
LF		 1114 ppsc->last_delaylps_stamp_jiffies = jiffies;
1115 }
1116
1117 return true;
1118 } else if (ETH_P_PAE == ether_type) {
1119 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
f30d7507 1120 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
0c817338
LF		 1121
1122 if (is_tx) {
a269913c
LF		 1123 rtlpriv->enter_ps = false;
1124 schedule_work(&rtlpriv->works.lps_change_work);
0c817338
LF		 1125 ppsc->last_delaylps_stamp_jiffies = jiffies;
1126 }
1127
1128 return true;
17c9ac62
LF		 1129 } else if (ETH_P_IPV6 == ether_type) {
1130 /* IPv6 */
0c817338
LF		 1131 return true;
1132 }
1133
0c817338
LF		 1134 return false;
1135}
6f334c2b 1136EXPORT_SYMBOL_GPL(rtl_is_special_data);
0c817338
LF		 1137
1138/*********************************************************
1139 *
1140 * functions called by core.c
1141 *
1142 *********************************************************/
acd48572
C		 1143int rtl_tx_agg_start(struct ieee80211_hw *hw,
1144 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
0c817338
LF		 1145{
1146 struct rtl_priv *rtlpriv = rtl_priv(hw);
1147 struct rtl_tid_data *tid_data;
1148 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1149 struct rtl_sta_info *sta_entry = NULL;
0c817338 1150
acd48572
C		 1151 if (sta == NULL)
1152 return -EINVAL;
0c817338
LF		 1153
1154 if (unlikely(tid >= MAX_TID_COUNT))
1155 return -EINVAL;
1156
acd48572
C		 1157 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1158 if (!sta_entry)
0c817338 1159 return -ENXIO;
acd48572 1160 tid_data = &sta_entry->tids[tid];
0c817338 1161
f30d7507
JP		 1162 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n",
1163 sta->addr, tid, tid_data->seq_number);
0c817338 1164
acd48572
C		 1165 *ssn = tid_data->seq_number;
1166 tid_data->agg.agg_state = RTL_AGG_START;
0c817338 1167
acd48572 1168 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338
LF		 1169
1170 return 0;
1171}
1172
acd48572
C		 1173int rtl_tx_agg_stop(struct ieee80211_hw *hw,
1174 struct ieee80211_sta *sta, u16 tid)
0c817338 1175{
0c817338
LF		 1176 struct rtl_priv *rtlpriv = rtl_priv(hw);
1177 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
acd48572 1178 struct rtl_sta_info *sta_entry = NULL;
0c817338 1179
acd48572
C		 1180 if (sta == NULL)
1181 return -EINVAL;
0c817338 1182
acd48572 1183 if (!sta->addr) {
f30d7507 1184 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
0c817338
LF		 1185 return -EINVAL;
1186 }
1187
f30d7507
JP		 1188 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1189 sta->addr, tid);
acd48572 1190
0c817338
LF		 1191 if (unlikely(tid >= MAX_TID_COUNT))
1192 return -EINVAL;
1193
acd48572 1194 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1195 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
0c817338 1196
acd48572 1197 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid);
0c817338 1198
acd48572
C		 1199 return 0;
1200}
1201
26634c4b
LF		 1202int rtl_rx_agg_start(struct ieee80211_hw *hw,
1203 struct ieee80211_sta *sta, u16 tid)
1204{
1205 struct rtl_priv *rtlpriv = rtl_priv(hw);
1206 struct rtl_tid_data *tid_data;
1207 struct rtl_sta_info *sta_entry = NULL;
1208
1209 if (sta == NULL)
1210 return -EINVAL;
1211
1212 if (unlikely(tid >= MAX_TID_COUNT))
1213 return -EINVAL;
1214
1215 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1216 if (!sta_entry)
1217 return -ENXIO;
1218 tid_data = &sta_entry->tids[tid];
1219
1220 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1221 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1222 tid_data->seq_number);
1223
1224 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1225 return 0;
1226}
1227
1228int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1229 struct ieee80211_sta *sta, u16 tid)
1230{
1231 struct rtl_priv *rtlpriv = rtl_priv(hw);
1232 struct rtl_sta_info *sta_entry = NULL;
1233
1234 if (sta == NULL)
1235 return -EINVAL;
1236
1237 if (!sta->addr) {
1238 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
1239 return -EINVAL;
1240 }
1241
1242 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1243 "on ra = %pM tid = %d\n", sta->addr, tid);
1244
1245 if (unlikely(tid >= MAX_TID_COUNT))
1246 return -EINVAL;
1247
1248 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1249 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1250
1251 return 0;
1252}
1253
acd48572
C		 1254int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1255 struct ieee80211_sta *sta, u16 tid)
1256{
1257 struct rtl_priv *rtlpriv = rtl_priv(hw);
acd48572 1258 struct rtl_sta_info *sta_entry = NULL;
0c817338 1259
acd48572
C		 1260 if (sta == NULL)
1261 return -EINVAL;
1262
1263 if (!sta->addr) {
f30d7507 1264 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n");
acd48572
C		 1265 return -EINVAL;
1266 }
0c817338 1267
f30d7507
JP		 1268 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n",
1269 sta->addr, tid);
0c817338 1270
acd48572
C		 1271 if (unlikely(tid >= MAX_TID_COUNT))
1272 return -EINVAL;
0c817338 1273
acd48572 1274 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
acd48572 1275 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
0c817338
LF		 1276
1277 return 0;
1278}
1279
1280/*********************************************************
1281 *
1282 * wq & timer callback functions
1283 *
1284 *********************************************************/
26634c4b
LF		 1285/* this function is used for roaming */
1286void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1287{
1288 struct rtl_priv *rtlpriv = rtl_priv(hw);
1289 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1290
1291 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1292 return;
1293
1294 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1295 return;
1296
1297 /* check if this really is a beacon */
1298 if (!ieee80211_is_beacon(hdr->frame_control) &&
1299 !ieee80211_is_probe_resp(hdr->frame_control))
1300 return;
1301
1302 /* min. beacon length + FCS_LEN */
1303 if (skb->len <= 40 + FCS_LEN)
1304 return;
1305
1306 /* and only beacons from the associated BSSID, please */
7367d0b5 1307 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
26634c4b
LF		 1308 return;
1309
1310 rtlpriv->link_info.bcn_rx_inperiod++;
1311}
6f334c2b 1312EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
26634c4b 1313
0c817338
LF		 1314void rtl_watchdog_wq_callback(void *data)
1315{
1316 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1317 struct rtl_works,
1318 watchdog_wq);
1319 struct ieee80211_hw *hw = rtlworks->hw;
1320 struct rtl_priv *rtlpriv = rtl_priv(hw);
1321 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1322 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
7ea47240 1323 bool busytraffic = false;
26634c4b
LF		 1324 bool tx_busy_traffic = false;
1325 bool rx_busy_traffic = false;
7ea47240
LF		 1326 bool higher_busytraffic = false;
1327 bool higher_busyrxtraffic = false;
acd48572 1328 u8 idx, tid;
0c817338
LF		 1329 u32 rx_cnt_inp4eriod = 0;
1330 u32 tx_cnt_inp4eriod = 0;
1331 u32 aver_rx_cnt_inperiod = 0;
1332 u32 aver_tx_cnt_inperiod = 0;
acd48572
C		 1333 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1334 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
0c817338
LF		 1335
1336 if (is_hal_stop(rtlhal))
1337 return;
1338
1339 /* <1> Determine if action frame is allowed */
1340 if (mac->link_state > MAC80211_NOLINK) {
1341 if (mac->cnt_after_linked < 20)
1342 mac->cnt_after_linked++;
1343 } else {
1344 mac->cnt_after_linked = 0;
1345 }
1346
0c817338 1347 /*
09e92f0b 1348 *<2> to check if traffic busy, if
0c817338
LF		 1349 * busytraffic we don't change channel
1350 */
1351 if (mac->link_state >= MAC80211_LINKED) {
1352
1353 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1354 for (idx = 0; idx <= 2; idx++) {
1355 rtlpriv->link_info.num_rx_in4period[idx] =
1356 rtlpriv->link_info.num_rx_in4period[idx + 1];
1357 rtlpriv->link_info.num_tx_in4period[idx] =
1358 rtlpriv->link_info.num_tx_in4period[idx + 1];
1359 }
1360 rtlpriv->link_info.num_rx_in4period[3] =
1361 rtlpriv->link_info.num_rx_inperiod;
1362 rtlpriv->link_info.num_tx_in4period[3] =
1363 rtlpriv->link_info.num_tx_inperiod;
1364 for (idx = 0; idx <= 3; idx++) {
1365 rx_cnt_inp4eriod +=
1366 rtlpriv->link_info.num_rx_in4period[idx];
1367 tx_cnt_inp4eriod +=
1368 rtlpriv->link_info.num_tx_in4period[idx];
1369 }
1370 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1371 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1372
1373 /* (2) check traffic busy */
26634c4b 1374 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
7ea47240 1375 busytraffic = true;
26634c4b
LF		 1376 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1377 rx_busy_traffic = true;
1378 else
1379 tx_busy_traffic = false;
1380 }
0c817338
LF		 1381
1382 /* Higher Tx/Rx data. */
1383 if (aver_rx_cnt_inperiod > 4000 ||
1384 aver_tx_cnt_inperiod > 4000) {
7ea47240 1385 higher_busytraffic = true;
0c817338
LF		 1386
1387 /* Extremely high Rx data. */
1388 if (aver_rx_cnt_inperiod > 5000)
7ea47240 1389 higher_busyrxtraffic = true;
acd48572
C		 1390 }
1391
1392 /* check every tid's tx traffic */
1393 for (tid = 0; tid <= 7; tid++) {
1394 for (idx = 0; idx <= 2; idx++)
1395 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1396 rtlpriv->link_info.tidtx_in4period[tid]
1397 [idx + 1];
1398 rtlpriv->link_info.tidtx_in4period[tid][3] =
1399 rtlpriv->link_info.tidtx_inperiod[tid];
1400
1401 for (idx = 0; idx <= 3; idx++)
1402 tidtx_inp4eriod[tid] +=
1403 rtlpriv->link_info.tidtx_in4period[tid][idx];
1404 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1405 if (aver_tidtx_inperiod[tid] > 5000)
1406 rtlpriv->link_info.higher_busytxtraffic[tid] =
1407 true;
0c817338 1408 else
acd48572
C		 1409 rtlpriv->link_info.higher_busytxtraffic[tid] =
1410 false;
0c817338
LF		 1411 }
1412
1413 if (((rtlpriv->link_info.num_rx_inperiod +
1414 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1415 (rtlpriv->link_info.num_rx_inperiod > 2))
a269913c 1416 rtlpriv->enter_ps = true;
0c817338 1417 else
a269913c 1418 rtlpriv->enter_ps = false;
0c817338
LF		 1419
1420 /* LeisurePS only work in infra mode. */
a269913c 1421 schedule_work(&rtlpriv->works.lps_change_work);
0c817338
LF		 1422 }
1423
1424 rtlpriv->link_info.num_rx_inperiod = 0;
1425 rtlpriv->link_info.num_tx_inperiod = 0;
acd48572
C		 1426 for (tid = 0; tid <= 7; tid++)
1427 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
0c817338 1428
7ea47240
LF		 1429 rtlpriv->link_info.busytraffic = busytraffic;
1430 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
26634c4b
LF		 1431 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1432 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
7ea47240 1433 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
0c817338 1434
acd48572
C		 1435 /* <3> DM */
1436 rtlpriv->cfg->ops->dm_watchdog(hw);
26634c4b
LF		 1437
1438 /* <4> roaming */
1439 if (mac->link_state == MAC80211_LINKED &&
1440 mac->opmode == NL80211_IFTYPE_STATION) {
1441 if ((rtlpriv->link_info.bcn_rx_inperiod +
1442 rtlpriv->link_info.num_rx_inperiod) == 0) {
1443 rtlpriv->link_info.roam_times++;
1444 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1445 "AP off for %d s\n",
1446 (rtlpriv->link_info.roam_times * 2));
1447
1448 /* if we can't recv beacon for 6s, we should
1449 * reconnect this AP
1450 */
1451 if (rtlpriv->link_info.roam_times >= 3) {
1452 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1453 "AP off, try to reconnect now\n");
1454 rtlpriv->link_info.roam_times = 0;
1455 ieee80211_connection_loss(rtlpriv->mac80211.vif);
1456 }
1457 } else {
1458 rtlpriv->link_info.roam_times = 0;
1459 }
1460 }
1461 rtlpriv->link_info.bcn_rx_inperiod = 0;
0c817338
LF		 1462}
1463
1464void rtl_watch_dog_timer_callback(unsigned long data)
1465{
1466 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1467 struct rtl_priv *rtlpriv = rtl_priv(hw);
1468
1469 queue_delayed_work(rtlpriv->works.rtl_wq,
1470 &rtlpriv->works.watchdog_wq, 0);
1471
1472 mod_timer(&rtlpriv->works.watchdog_timer,
1473 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1474}
1475
26634c4b
LF		 1476void rtl_fwevt_wq_callback(void *data)
1477{
1478 struct rtl_works *rtlworks =
1479 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1480 struct ieee80211_hw *hw = rtlworks->hw;
1481 struct rtl_priv *rtlpriv = rtl_priv(hw);
1482
1483 rtlpriv->cfg->ops->c2h_command_handle(hw);
1484}
1485
1486void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1487{
1488 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1489 struct rtl_priv *rtlpriv = rtl_priv(hw);
1490 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1491
1492 if (buddy_priv == NULL)
1493 return;
1494
1495 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1496}
1497
acd48572
C		 1498/*********************************************************
1499 *
1500 * frame process functions
1501 *
1502 *********************************************************/
1503u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1504{
1505 struct ieee80211_mgmt *mgmt = (void *)data;
1506 u8 *pos, *end;
1507
1508 pos = (u8 *)mgmt->u.beacon.variable;
1509 end = data + len;
1510 while (pos < end) {
1511 if (pos + 2 + pos[1] > end)
1512 return NULL;
1513
1514 if (pos[0] == ie)
1515 return pos;
1516
1517 pos += 2 + pos[1];
1518 }
1519 return NULL;
1520}
1521
1522/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1523/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
d3bb1429 1524static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
acd48572
C		 1525 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid)
1526{
1527 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1528 struct sk_buff *skb;
1529 struct ieee80211_mgmt *action_frame;
1530
1531 /* 27 = header + category + action + smps mode */
1532 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1533 if (!skb)
1534 return NULL;
1535
1536 skb_reserve(skb, hw->extra_tx_headroom);
1537 action_frame = (void *)skb_put(skb, 27);
1538 memset(action_frame, 0, 27);
1539 memcpy(action_frame->da, da, ETH_ALEN);
1540 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1541 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1542 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1543 IEEE80211_STYPE_ACTION);
1544 action_frame->u.action.category = WLAN_CATEGORY_HT;
1545 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1546 switch (smps) {
1547 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1548 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1549 WARN_ON(1);
1550 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1551 action_frame->u.action.u.ht_smps.smps_control =
1552 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1553 break;
1554 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1555 action_frame->u.action.u.ht_smps.smps_control =
1556 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1557 break;
1558 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1559 action_frame->u.action.u.ht_smps.smps_control =
1560 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1561 break;
1562 }
1563
1564 return skb;
1565}
1566
1567int rtl_send_smps_action(struct ieee80211_hw *hw,
26634c4b 1568 struct ieee80211_sta *sta,
acd48572
C		 1569 enum ieee80211_smps_mode smps)
1570{
1571 struct rtl_priv *rtlpriv = rtl_priv(hw);
1572 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1573 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
26634c4b 1574 struct sk_buff *skb = NULL;
acd48572 1575 struct rtl_tcb_desc tcb_desc;
26634c4b
LF		 1576 u8 bssid[ETH_ALEN] = {0};
1577
acd48572
C		 1578 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1579
1580 if (rtlpriv->mac80211.act_scanning)
1581 goto err_free;
1582
1583 if (!sta)
1584 goto err_free;
1585
1586 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1587 goto err_free;
1588
1589 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1590 goto err_free;
1591
26634c4b
LF		 1592 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1593 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1594 else
1595 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1596
1597 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
acd48572
C		 1598 /* this is a type = mgmt * stype = action frame */
1599 if (skb) {
1600 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1601 struct rtl_sta_info *sta_entry =
1602 (struct rtl_sta_info *) sta->drv_priv;
1603 sta_entry->mimo_ps = smps;
acd48572
C		 1604
1605 info->control.rates[0].idx = 0;
675a0b04 1606 info->band = hw->conf.chandef.chan->band;
36323f81 1607 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
acd48572 1608 }
26634c4b
LF		 1609 return 1;
1610
acd48572
C		 1611err_free:
1612 return 0;
1613}
26634c4b
LF		 1614EXPORT_SYMBOL(rtl_send_smps_action);
1615
4f4826da
LF		 1616void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1617{
1618 struct rtl_priv *rtlpriv = rtl_priv(hw);
1619 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1620 enum io_type iotype;
1621
1622 if (!is_hal_stop(rtlhal)) {
1623 switch (operation) {
1624 case SCAN_OPT_BACKUP:
1625 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1626 rtlpriv->cfg->ops->set_hw_reg(hw,
1627 HW_VAR_IO_CMD,
1628 (u8 *)&iotype);
1629 break;
1630 case SCAN_OPT_RESTORE:
1631 iotype = IO_CMD_RESUME_DM_BY_SCAN;
1632 rtlpriv->cfg->ops->set_hw_reg(hw,
1633 HW_VAR_IO_CMD,
1634 (u8 *)&iotype);
1635 break;
1636 default:
1637 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1638 "Unknown Scan Backup operation.\n");
1639 break;
1640 }
1641 }
1642}
1643EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1644
26634c4b
LF		 1645/* There seem to be issues in mac80211 regarding when del ba frames can be
1646 * received. As a work around, we make a fake del_ba if we receive a ba_req;
1647 * however, rx_agg was opened to let mac80211 release some ba related
1648 * resources. This del_ba is for tx only.
1649 */
1650struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1651 u8 *sa, u8 *bssid, u16 tid)
1652{
1653 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1654 struct sk_buff *skb;
1655 struct ieee80211_mgmt *action_frame;
1656 u16 params;
1657
1658 /* 27 = header + category + action + smps mode */
1659 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
1660 if (!skb)
1661 return NULL;
1662
1663 skb_reserve(skb, hw->extra_tx_headroom);
1664 action_frame = (void *)skb_put(skb, 34);
1665 memset(action_frame, 0, 34);
1666 memcpy(action_frame->sa, sa, ETH_ALEN);
1667 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
1668 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1669 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1670 IEEE80211_STYPE_ACTION);
1671 action_frame->u.action.category = WLAN_CATEGORY_BACK;
1672 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
1673 params = (u16)(1 << 11); /* bit 11 initiator */
1674 params |= (u16)(tid << 12); /* bit 15:12 TID number */
1675
1676 action_frame->u.action.u.delba.params = cpu_to_le16(params);
1677 action_frame->u.action.u.delba.reason_code =
1678 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
1679
1680 return skb;
1681}
acd48572
C		 1682
1683/*********************************************************
1684 *
1685 * IOT functions
1686 *
1687 *********************************************************/
1688static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
1689 struct octet_string vendor_ie)
1690{
1691 struct rtl_priv *rtlpriv = rtl_priv(hw);
1692 bool matched = false;
1693 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
1694 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
1695 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
1696 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
1697 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
1698 static u8 racap[] = { 0x00, 0x0c, 0x43 };
1699 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
1700 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
1701
1702 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
1703 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
1704 rtlpriv->mac80211.vendor = PEER_ATH;
1705 matched = true;
1706 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
1707 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
1708 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
1709 rtlpriv->mac80211.vendor = PEER_BROAD;
1710 matched = true;
1711 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
1712 rtlpriv->mac80211.vendor = PEER_RAL;
1713 matched = true;
1714 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
1715 rtlpriv->mac80211.vendor = PEER_CISCO;
1716 matched = true;
1717 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
1718 rtlpriv->mac80211.vendor = PEER_MARV;
1719 matched = true;
1720 }
1721
1722 return matched;
1723}
1724
d3bb1429 1725static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
acd48572
C		 1726 unsigned int len)
1727{
1728 struct ieee80211_mgmt *mgmt = (void *)data;
1729 struct octet_string vendor_ie;
1730 u8 *pos, *end;
1731
1732 pos = (u8 *)mgmt->u.beacon.variable;
1733 end = data + len;
1734 while (pos < end) {
1735 if (pos[0] == 221) {
1736 vendor_ie.length = pos[1];
1737 vendor_ie.octet = &pos[2];
1738 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
1739 return true;
1740 }
1741
1742 if (pos + 2 + pos[1] > end)
1743 return false;
1744
1745 pos += 2 + pos[1];
1746 }
1747 return false;
1748}
1749
1750void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
1751{
1752 struct rtl_priv *rtlpriv = rtl_priv(hw);
1753 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1754 struct ieee80211_hdr *hdr = (void *)data;
1755 u32 vendor = PEER_UNKNOWN;
1756
1757 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
1758 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
1759 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
1760 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
1761 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
1762 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
1763 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
1764 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
1765 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
1766 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
1767 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
1768 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
1769 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
1770 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
1771 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
1772 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
1773
1774 if (mac->opmode != NL80211_IFTYPE_STATION)
1775 return;
1776
1777 if (mac->link_state == MAC80211_NOLINK) {
1778 mac->vendor = PEER_UNKNOWN;
1779 return;
1780 }
1781
1782 if (mac->cnt_after_linked > 2)
1783 return;
1784
1785 /* check if this really is a beacon */
1786 if (!ieee80211_is_beacon(hdr->frame_control))
1787 return;
1788
1789 /* min. beacon length + FCS_LEN */
1790 if (len <= 40 + FCS_LEN)
1791 return;
1792
1793 /* and only beacons from the associated BSSID, please */
2e42e474 1794 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
acd48572
C		 1795 return;
1796
1797 if (rtl_find_221_ie(hw, data, len))
1798 vendor = mac->vendor;
1799
1800 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
1801 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
1802 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
1803 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
1804 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
1805 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
1806 vendor == PEER_ATH) {
1807 vendor = PEER_ATH;
f30d7507 1808 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
acd48572
C		 1809 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
1810 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
1811 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
1812 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
1813 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
1814 vendor == PEER_RAL) {
f30d7507 1815 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
acd48572
C		 1816 vendor = PEER_RAL;
1817 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
1818 vendor == PEER_CISCO) {
1819 vendor = PEER_CISCO;
f30d7507 1820 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
acd48572
C		 1821 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
1822 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
1823 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
1824 vendor == PEER_BROAD) {
f30d7507 1825 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
acd48572
C		 1826 vendor = PEER_BROAD;
1827 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
1828 vendor == PEER_MARV) {
1829 vendor = PEER_MARV;
f30d7507 1830 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
acd48572
C		 1831 }
1832
1833 mac->vendor = vendor;
1834}
6f334c2b 1835EXPORT_SYMBOL_GPL(rtl_recognize_peer);
acd48572 1836
0c817338
LF		 1837/*********************************************************
1838 *
1839 * sysfs functions
1840 *
1841 *********************************************************/
1842static ssize_t rtl_show_debug_level(struct device *d,
1843 struct device_attribute *attr, char *buf)
1844{
1845 struct ieee80211_hw *hw = dev_get_drvdata(d);
1846 struct rtl_priv *rtlpriv = rtl_priv(hw);
1847
1848 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel);
1849}
1850
1851static ssize_t rtl_store_debug_level(struct device *d,
1852 struct device_attribute *attr,
1853 const char *buf, size_t count)
1854{
1855 struct ieee80211_hw *hw = dev_get_drvdata(d);
1856 struct rtl_priv *rtlpriv = rtl_priv(hw);
1857 unsigned long val;
1858 int ret;
1859
27d7f477 1860 ret = kstrtoul(buf, 0, &val);
0c817338
LF		 1861 if (ret) {
1862 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
1863 } else {
1864 rtlpriv->dbg.global_debuglevel = val;
1865 printk(KERN_DEBUG "debuglevel:%x\n",
1866 rtlpriv->dbg.global_debuglevel);
1867 }
1868
1869 return strnlen(buf, count);
1870}
1871
1872static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1873 rtl_show_debug_level, rtl_store_debug_level);
1874
1875static struct attribute *rtl_sysfs_entries[] = {
1876
1877 &dev_attr_debug_level.attr,
1878
1879 NULL
1880};
1881
1882/*
1883 * "name" is folder name witch will be
1884 * put in device directory like :
1885 * sys/devices/pci0000:00/0000:00:1c.4/
1886 * 0000:06:00.0/rtl_sysfs
1887 */
1888struct attribute_group rtl_attribute_group = {
1889 .name = "rtlsysfs",
1890 .attrs = rtl_sysfs_entries,
1891};
6f334c2b 1892EXPORT_SYMBOL_GPL(rtl_attribute_group);
0c817338
LF		 1893
1894MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
1895MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
1896MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
1897MODULE_LICENSE("GPL");
1898MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
1899
6f334c2b
LF		 1900struct rtl_global_var rtl_global_var = {};
1901EXPORT_SYMBOL_GPL(rtl_global_var);
26634c4b 1902
0c817338
LF		 1903static int __init rtl_core_module_init(void)
1904{
375ff4c7 1905 if (rtl_rate_control_register())
292b1192 1906 pr_err("Unable to register rtl_rc, use default RC !!\n");
acd48572 1907
26634c4b 1908 /* init some global vars */
6f334c2b
LF		 1909 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
1910 spin_lock_init(&rtl_global_var.glb_list_lock);
26634c4b 1911
0c817338
LF		 1912 return 0;
1913}
1914
1915static void __exit rtl_core_module_exit(void)
1916{
acd48572 1917 /*RC*/
375ff4c7 1918 rtl_rate_control_unregister();
0c817338
LF		 1919}
1920
1921module_init(rtl_core_module_init);
1922module_exit(rtl_core_module_exit);
Linux kernel - Deliverables
This page took 0.796348 seconds and 5 git commands to generate.