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[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / realtek / rtlwifi / base.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 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 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "wifi.h"
27 #include "rc.h"
28 #include "base.h"
29 #include "efuse.h"
30 #include "cam.h"
31 #include "ps.h"
32 #include "regd.h"
33 #include "pci.h"
34 #include <linux/ip.h>
35 #include <linux/module.h>
36 #include <linux/udp.h>
37
38 /*
39 *NOTICE!!!: This file will be very big, we should
40 *keep it clear under following roles:
41 *
42 *This file include following parts, so, if you add new
43 *functions into this file, please check which part it
44 *should includes. or check if you should add new part
45 *for this file:
46 *
47 *1) mac80211 init functions
48 *2) tx information functions
49 *3) functions called by core.c
50 *4) wq & timer callback functions
51 *5) frame process functions
52 *6) IOT functions
53 *7) sysfs functions
54 *8) vif functions
55 *9) ...
56 */
57
58 /*********************************************************
59 *
60 * mac80211 init functions
61 *
62 *********************************************************/
63 static struct ieee80211_channel rtl_channeltable_2g[] = {
64 {.center_freq = 2412, .hw_value = 1,},
65 {.center_freq = 2417, .hw_value = 2,},
66 {.center_freq = 2422, .hw_value = 3,},
67 {.center_freq = 2427, .hw_value = 4,},
68 {.center_freq = 2432, .hw_value = 5,},
69 {.center_freq = 2437, .hw_value = 6,},
70 {.center_freq = 2442, .hw_value = 7,},
71 {.center_freq = 2447, .hw_value = 8,},
72 {.center_freq = 2452, .hw_value = 9,},
73 {.center_freq = 2457, .hw_value = 10,},
74 {.center_freq = 2462, .hw_value = 11,},
75 {.center_freq = 2467, .hw_value = 12,},
76 {.center_freq = 2472, .hw_value = 13,},
77 {.center_freq = 2484, .hw_value = 14,},
78 };
79
80 static struct ieee80211_channel rtl_channeltable_5g[] = {
81 {.center_freq = 5180, .hw_value = 36,},
82 {.center_freq = 5200, .hw_value = 40,},
83 {.center_freq = 5220, .hw_value = 44,},
84 {.center_freq = 5240, .hw_value = 48,},
85 {.center_freq = 5260, .hw_value = 52,},
86 {.center_freq = 5280, .hw_value = 56,},
87 {.center_freq = 5300, .hw_value = 60,},
88 {.center_freq = 5320, .hw_value = 64,},
89 {.center_freq = 5500, .hw_value = 100,},
90 {.center_freq = 5520, .hw_value = 104,},
91 {.center_freq = 5540, .hw_value = 108,},
92 {.center_freq = 5560, .hw_value = 112,},
93 {.center_freq = 5580, .hw_value = 116,},
94 {.center_freq = 5600, .hw_value = 120,},
95 {.center_freq = 5620, .hw_value = 124,},
96 {.center_freq = 5640, .hw_value = 128,},
97 {.center_freq = 5660, .hw_value = 132,},
98 {.center_freq = 5680, .hw_value = 136,},
99 {.center_freq = 5700, .hw_value = 140,},
100 {.center_freq = 5745, .hw_value = 149,},
101 {.center_freq = 5765, .hw_value = 153,},
102 {.center_freq = 5785, .hw_value = 157,},
103 {.center_freq = 5805, .hw_value = 161,},
104 {.center_freq = 5825, .hw_value = 165,},
105 };
106
107 static struct ieee80211_rate rtl_ratetable_2g[] = {
108 {.bitrate = 10, .hw_value = 0x00,},
109 {.bitrate = 20, .hw_value = 0x01,},
110 {.bitrate = 55, .hw_value = 0x02,},
111 {.bitrate = 110, .hw_value = 0x03,},
112 {.bitrate = 60, .hw_value = 0x04,},
113 {.bitrate = 90, .hw_value = 0x05,},
114 {.bitrate = 120, .hw_value = 0x06,},
115 {.bitrate = 180, .hw_value = 0x07,},
116 {.bitrate = 240, .hw_value = 0x08,},
117 {.bitrate = 360, .hw_value = 0x09,},
118 {.bitrate = 480, .hw_value = 0x0a,},
119 {.bitrate = 540, .hw_value = 0x0b,},
120 };
121
122 static struct ieee80211_rate rtl_ratetable_5g[] = {
123 {.bitrate = 60, .hw_value = 0x04,},
124 {.bitrate = 90, .hw_value = 0x05,},
125 {.bitrate = 120, .hw_value = 0x06,},
126 {.bitrate = 180, .hw_value = 0x07,},
127 {.bitrate = 240, .hw_value = 0x08,},
128 {.bitrate = 360, .hw_value = 0x09,},
129 {.bitrate = 480, .hw_value = 0x0a,},
130 {.bitrate = 540, .hw_value = 0x0b,},
131 };
132
133 static const struct ieee80211_supported_band rtl_band_2ghz = {
134 .band = NL80211_BAND_2GHZ,
135
136 .channels = rtl_channeltable_2g,
137 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
138
139 .bitrates = rtl_ratetable_2g,
140 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
141
142 .ht_cap = {0},
143 };
144
145 static struct ieee80211_supported_band rtl_band_5ghz = {
146 .band = NL80211_BAND_5GHZ,
147
148 .channels = rtl_channeltable_5g,
149 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
150
151 .bitrates = rtl_ratetable_5g,
152 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
153
154 .ht_cap = {0},
155 };
156
157 static const u8 tid_to_ac[] = {
158 2, /* IEEE80211_AC_BE */
159 3, /* IEEE80211_AC_BK */
160 3, /* IEEE80211_AC_BK */
161 2, /* IEEE80211_AC_BE */
162 1, /* IEEE80211_AC_VI */
163 1, /* IEEE80211_AC_VI */
164 0, /* IEEE80211_AC_VO */
165 0, /* IEEE80211_AC_VO */
166 };
167
168 u8 rtl_tid_to_ac(u8 tid)
169 {
170 return tid_to_ac[tid];
171 }
172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
173
174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
175 struct ieee80211_sta_ht_cap *ht_cap)
176 {
177 struct rtl_priv *rtlpriv = rtl_priv(hw);
178 struct rtl_phy *rtlphy = &(rtlpriv->phy);
179
180 ht_cap->ht_supported = true;
181 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
182 IEEE80211_HT_CAP_SGI_40 |
183 IEEE80211_HT_CAP_SGI_20 |
184 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
185
186 if (rtlpriv->rtlhal.disable_amsdu_8k)
187 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
188
189 /*
190 *Maximum length of AMPDU that the STA can receive.
191 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
192 */
193 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
194
195 /*Minimum MPDU start spacing , */
196 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
197
198 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
199
200 /*hw->wiphy->bands[NL80211_BAND_2GHZ]
201 *base on ant_num
202 *rx_mask: RX mask
203 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
204 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
205 *if rx_ant >= 3 rx_mask[2]= 0xff;
206 *if BW_40 rx_mask[4]= 0x01;
207 *highest supported RX rate
208 */
209 if (rtlpriv->dm.supp_phymode_switch) {
210 pr_info("Support phy mode switch\n");
211
212 ht_cap->mcs.rx_mask[0] = 0xFF;
213 ht_cap->mcs.rx_mask[1] = 0xFF;
214 ht_cap->mcs.rx_mask[4] = 0x01;
215
216 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
217 } else {
218 if (get_rf_type(rtlphy) == RF_1T2R ||
219 get_rf_type(rtlphy) == RF_2T2R) {
220 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
221 "1T2R or 2T2R\n");
222 ht_cap->mcs.rx_mask[0] = 0xFF;
223 ht_cap->mcs.rx_mask[1] = 0xFF;
224 ht_cap->mcs.rx_mask[4] = 0x01;
225
226 ht_cap->mcs.rx_highest =
227 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
228 } else if (get_rf_type(rtlphy) == RF_1T1R) {
229 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
230
231 ht_cap->mcs.rx_mask[0] = 0xFF;
232 ht_cap->mcs.rx_mask[1] = 0x00;
233 ht_cap->mcs.rx_mask[4] = 0x01;
234
235 ht_cap->mcs.rx_highest =
236 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
237 }
238 }
239 }
240
241 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
242 struct ieee80211_sta_vht_cap *vht_cap)
243 {
244 struct rtl_priv *rtlpriv = rtl_priv(hw);
245 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
246
247 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
248 u16 mcs_map;
249
250 vht_cap->vht_supported = true;
251 vht_cap->cap =
252 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
254 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
255 IEEE80211_VHT_CAP_SHORT_GI_80 |
256 IEEE80211_VHT_CAP_TXSTBC |
257 IEEE80211_VHT_CAP_RXSTBC_1 |
258 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
259 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
260 IEEE80211_VHT_CAP_HTC_VHT |
261 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
262 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
263 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
264 0;
265
266 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
267 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
268 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
273 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
274
275 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
276 vht_cap->vht_mcs.rx_highest =
277 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
278 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
279 vht_cap->vht_mcs.tx_highest =
280 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
281 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
282 u16 mcs_map;
283
284 vht_cap->vht_supported = true;
285 vht_cap->cap =
286 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 |
287 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
288 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
289 IEEE80211_VHT_CAP_SHORT_GI_80 |
290 IEEE80211_VHT_CAP_TXSTBC |
291 IEEE80211_VHT_CAP_RXSTBC_1 |
292 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
293 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
294 IEEE80211_VHT_CAP_HTC_VHT |
295 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
296 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
297 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
298 0;
299
300 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
301 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
304 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
305 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
306 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
307 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
308
309 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
310 vht_cap->vht_mcs.rx_highest =
311 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
312 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
313 vht_cap->vht_mcs.tx_highest =
314 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
315 }
316 }
317
318 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
319 {
320 struct rtl_priv *rtlpriv = rtl_priv(hw);
321 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
322 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
323 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
324 struct ieee80211_supported_band *sband;
325
326 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
327 rtlhal->bandset == BAND_ON_BOTH) {
328 /* 1: 2.4 G bands */
329 /* <1> use mac->bands as mem for hw->wiphy->bands */
330 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
331
332 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
333 * to default value(1T1R) */
334 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
335 sizeof(struct ieee80211_supported_band));
336
337 /* <3> init ht cap base on ant_num */
338 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
339
340 /* <4> set mac->sband to wiphy->sband */
341 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
342
343 /* 2: 5 G bands */
344 /* <1> use mac->bands as mem for hw->wiphy->bands */
345 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
346
347 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
348 * to default value(1T1R) */
349 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
350 sizeof(struct ieee80211_supported_band));
351
352 /* <3> init ht cap base on ant_num */
353 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
354
355 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
356 /* <4> set mac->sband to wiphy->sband */
357 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
358 } else {
359 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
360 /* <1> use mac->bands as mem for hw->wiphy->bands */
361 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
362
363 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
364 * to default value(1T1R) */
365 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
366 &rtl_band_2ghz,
367 sizeof(struct ieee80211_supported_band));
368
369 /* <3> init ht cap base on ant_num */
370 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
371
372 /* <4> set mac->sband to wiphy->sband */
373 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
374 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
375 /* <1> use mac->bands as mem for hw->wiphy->bands */
376 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
377
378 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
379 * to default value(1T1R) */
380 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
381 &rtl_band_5ghz,
382 sizeof(struct ieee80211_supported_band));
383
384 /* <3> init ht cap base on ant_num */
385 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
386
387 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
388 /* <4> set mac->sband to wiphy->sband */
389 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
390 } else {
391 pr_err("Err BAND %d\n",
392 rtlhal->current_bandtype);
393 }
394 }
395 /* <5> set hw caps */
396 ieee80211_hw_set(hw, SIGNAL_DBM);
397 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
398 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
399 ieee80211_hw_set(hw, CONNECTION_MONITOR);
400 ieee80211_hw_set(hw, MFP_CAPABLE);
401 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
402
403 /* swlps or hwlps has been set in diff chip in init_sw_vars */
404 if (rtlpriv->psc.swctrl_lps) {
405 ieee80211_hw_set(hw, SUPPORTS_PS);
406 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
407 }
408 hw->wiphy->interface_modes =
409 BIT(NL80211_IFTYPE_AP) |
410 BIT(NL80211_IFTYPE_STATION) |
411 BIT(NL80211_IFTYPE_ADHOC) |
412 BIT(NL80211_IFTYPE_MESH_POINT) |
413 BIT(NL80211_IFTYPE_P2P_CLIENT) |
414 BIT(NL80211_IFTYPE_P2P_GO);
415 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
416
417 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
418
419 hw->wiphy->rts_threshold = 2347;
420
421 hw->queues = AC_MAX;
422 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
423
424 /* TODO: Correct this value for our hw */
425 /* TODO: define these hard code value */
426 hw->max_listen_interval = 10;
427 hw->max_rate_tries = 4;
428 /* hw->max_rates = 1; */
429 hw->sta_data_size = sizeof(struct rtl_sta_info);
430
431 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
432 #ifdef CONFIG_PM
433 if (rtlpriv->psc.wo_wlan_mode) {
434 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
435 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
436 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
437 rtlpriv->wowlan.n_patterns =
438 MAX_SUPPORT_WOL_PATTERN_NUM;
439 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
440 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
441 }
442 hw->wiphy->wowlan = &rtlpriv->wowlan;
443 }
444 #endif
445
446 /* <6> mac address */
447 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
448 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
449 } else {
450 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
451 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
452 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
453 }
454 }
455
456 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
457 {
458 struct rtl_priv *rtlpriv = rtl_priv(hw);
459
460 /* <1> timer */
461 setup_timer(&rtlpriv->works.watchdog_timer,
462 rtl_watch_dog_timer_callback, (unsigned long)hw);
463 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
464 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
465 /* <2> work queue */
466 rtlpriv->works.hw = hw;
467 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
468 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
469 (void *)rtl_watchdog_wq_callback);
470 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
471 (void *)rtl_ips_nic_off_wq_callback);
472 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
473 (void *)rtl_swlps_wq_callback);
474 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
475 (void *)rtl_swlps_rfon_wq_callback);
476 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
477 (void *)rtl_fwevt_wq_callback);
478 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
479 (void *)rtl_c2hcmd_wq_callback);
480
481 }
482
483 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
484 {
485 struct rtl_priv *rtlpriv = rtl_priv(hw);
486
487 del_timer_sync(&rtlpriv->works.watchdog_timer);
488
489 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
490 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
491 cancel_delayed_work(&rtlpriv->works.ps_work);
492 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
493 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
494 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq);
495 }
496 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
497
498 void rtl_init_rfkill(struct ieee80211_hw *hw)
499 {
500 struct rtl_priv *rtlpriv = rtl_priv(hw);
501
502 bool radio_state;
503 bool blocked;
504 u8 valid = 0;
505
506 /*set init state to on */
507 rtlpriv->rfkill.rfkill_state = true;
508 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
509
510 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
511
512 if (valid) {
513 pr_info("rtlwifi: wireless switch is %s\n",
514 rtlpriv->rfkill.rfkill_state ? "on" : "off");
515
516 rtlpriv->rfkill.rfkill_state = radio_state;
517
518 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
519 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
520 }
521
522 wiphy_rfkill_start_polling(hw->wiphy);
523 }
524 EXPORT_SYMBOL(rtl_init_rfkill);
525
526 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
527 {
528 wiphy_rfkill_stop_polling(hw->wiphy);
529 }
530 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
531
532 int rtl_init_core(struct ieee80211_hw *hw)
533 {
534 struct rtl_priv *rtlpriv = rtl_priv(hw);
535 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
536
537 /* <1> init mac80211 */
538 _rtl_init_mac80211(hw);
539 rtlmac->hw = hw;
540
541 /* <2> rate control register */
542 hw->rate_control_algorithm = "rtl_rc";
543
544 /*
545 * <3> init CRDA must come after init
546 * mac80211 hw in _rtl_init_mac80211.
547 */
548 if (rtl_regd_init(hw, rtl_reg_notifier)) {
549 pr_err("REGD init failed\n");
550 return 1;
551 }
552
553 /* <4> locks */
554 mutex_init(&rtlpriv->locks.conf_mutex);
555 spin_lock_init(&rtlpriv->locks.ips_lock);
556 spin_lock_init(&rtlpriv->locks.irq_th_lock);
557 spin_lock_init(&rtlpriv->locks.h2c_lock);
558 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
559 spin_lock_init(&rtlpriv->locks.rf_lock);
560 spin_lock_init(&rtlpriv->locks.waitq_lock);
561 spin_lock_init(&rtlpriv->locks.entry_list_lock);
562 spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
563 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
564 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock);
565 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
566 spin_lock_init(&rtlpriv->locks.lps_lock);
567 spin_lock_init(&rtlpriv->locks.iqk_lock);
568 /* <5> init list */
569 INIT_LIST_HEAD(&rtlpriv->entry_list);
570 INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
571
572 rtlmac->link_state = MAC80211_NOLINK;
573
574 /* <6> init deferred work */
575 _rtl_init_deferred_work(hw);
576
577 return 0;
578 }
579 EXPORT_SYMBOL_GPL(rtl_init_core);
580
581 void rtl_deinit_core(struct ieee80211_hw *hw)
582 {
583 rtl_c2hcmd_launcher(hw, 0);
584 }
585 EXPORT_SYMBOL_GPL(rtl_deinit_core);
586
587 void rtl_init_rx_config(struct ieee80211_hw *hw)
588 {
589 struct rtl_priv *rtlpriv = rtl_priv(hw);
590 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
591
592 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
593 }
594 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
595
596 /*********************************************************
597 *
598 * tx information functions
599 *
600 *********************************************************/
601 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
602 struct rtl_tcb_desc *tcb_desc,
603 struct ieee80211_tx_info *info)
604 {
605 struct rtl_priv *rtlpriv = rtl_priv(hw);
606 u8 rate_flag = info->control.rates[0].flags;
607
608 tcb_desc->use_shortpreamble = false;
609
610 /* 1M can only use Long Preamble. 11B spec */
611 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
612 return;
613 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
614 tcb_desc->use_shortpreamble = true;
615
616 return;
617 }
618
619 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
620 struct ieee80211_sta *sta,
621 struct rtl_tcb_desc *tcb_desc,
622 struct ieee80211_tx_info *info)
623 {
624 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
625 u8 rate_flag = info->control.rates[0].flags;
626 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
627 u8 sgi_80 = 0, bw_80 = 0;
628 tcb_desc->use_shortgi = false;
629
630 if (sta == NULL)
631 return;
632
633 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
634 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
635 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
636
637 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
638 return;
639
640 if (!sgi_40 && !sgi_20)
641 return;
642
643 if (mac->opmode == NL80211_IFTYPE_STATION) {
644 bw_40 = mac->bw_40;
645 bw_80 = mac->bw_80;
646 } else if (mac->opmode == NL80211_IFTYPE_AP ||
647 mac->opmode == NL80211_IFTYPE_ADHOC ||
648 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
649 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
650 bw_80 = sta->vht_cap.vht_supported;
651 }
652
653 if (bw_80) {
654 if (sgi_80)
655 tcb_desc->use_shortgi = true;
656 else
657 tcb_desc->use_shortgi = false;
658 } else {
659 if (bw_40 && sgi_40)
660 tcb_desc->use_shortgi = true;
661 else if (!bw_40 && sgi_20)
662 tcb_desc->use_shortgi = true;
663 }
664
665 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
666 tcb_desc->use_shortgi = false;
667 }
668
669 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
670 struct rtl_tcb_desc *tcb_desc,
671 struct ieee80211_tx_info *info)
672 {
673 struct rtl_priv *rtlpriv = rtl_priv(hw);
674 u8 rate_flag = info->control.rates[0].flags;
675
676 /* Common Settings */
677 tcb_desc->rts_stbc = false;
678 tcb_desc->cts_enable = false;
679 tcb_desc->rts_sc = 0;
680 tcb_desc->rts_bw = false;
681 tcb_desc->rts_use_shortpreamble = false;
682 tcb_desc->rts_use_shortgi = false;
683
684 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
685 /* Use CTS-to-SELF in protection mode. */
686 tcb_desc->rts_enable = true;
687 tcb_desc->cts_enable = true;
688 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
689 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
690 /* Use RTS-CTS in protection mode. */
691 tcb_desc->rts_enable = true;
692 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
693 }
694 }
695
696 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
697 struct ieee80211_sta *sta,
698 struct rtl_tcb_desc *tcb_desc)
699 {
700 struct rtl_priv *rtlpriv = rtl_priv(hw);
701 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
702 struct rtl_sta_info *sta_entry = NULL;
703 u8 ratr_index = 7;
704
705 if (sta) {
706 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
707 ratr_index = sta_entry->ratr_index;
708 }
709 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
710 if (mac->opmode == NL80211_IFTYPE_STATION) {
711 tcb_desc->ratr_index = 0;
712 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
713 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
714 if (tcb_desc->multicast || tcb_desc->broadcast) {
715 tcb_desc->hw_rate =
716 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
717 tcb_desc->use_driver_rate = 1;
718 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
719 } else {
720 tcb_desc->ratr_index = ratr_index;
721 }
722 } else if (mac->opmode == NL80211_IFTYPE_AP) {
723 tcb_desc->ratr_index = ratr_index;
724 }
725 }
726
727 if (rtlpriv->dm.useramask) {
728 tcb_desc->ratr_index = ratr_index;
729 /* TODO we will differentiate adhoc and station future */
730 if (mac->opmode == NL80211_IFTYPE_STATION ||
731 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
732 tcb_desc->mac_id = 0;
733
734 if (mac->mode == WIRELESS_MODE_AC_5G)
735 tcb_desc->ratr_index =
736 RATR_INX_WIRELESS_AC_5N;
737 else if (mac->mode == WIRELESS_MODE_AC_24G)
738 tcb_desc->ratr_index =
739 RATR_INX_WIRELESS_AC_24N;
740 else if (mac->mode == WIRELESS_MODE_N_24G)
741 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB;
742 else if (mac->mode == WIRELESS_MODE_N_5G)
743 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG;
744 else if (mac->mode & WIRELESS_MODE_G)
745 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB;
746 else if (mac->mode & WIRELESS_MODE_B)
747 tcb_desc->ratr_index = RATR_INX_WIRELESS_B;
748 else if (mac->mode & WIRELESS_MODE_A)
749 tcb_desc->ratr_index = RATR_INX_WIRELESS_G;
750
751 } else if (mac->opmode == NL80211_IFTYPE_AP ||
752 mac->opmode == NL80211_IFTYPE_ADHOC) {
753 if (NULL != sta) {
754 if (sta->aid > 0)
755 tcb_desc->mac_id = sta->aid + 1;
756 else
757 tcb_desc->mac_id = 1;
758 } else {
759 tcb_desc->mac_id = 0;
760 }
761 }
762 }
763 }
764
765 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
766 struct ieee80211_sta *sta,
767 struct rtl_tcb_desc *tcb_desc)
768 {
769 struct rtl_priv *rtlpriv = rtl_priv(hw);
770 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
771
772 tcb_desc->packet_bw = false;
773 if (!sta)
774 return;
775 if (mac->opmode == NL80211_IFTYPE_AP ||
776 mac->opmode == NL80211_IFTYPE_ADHOC ||
777 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
778 if (!(sta->ht_cap.ht_supported) ||
779 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
780 return;
781 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
782 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
783 return;
784 }
785 if (tcb_desc->multicast || tcb_desc->broadcast)
786 return;
787
788 /*use legency rate, shall use 20MHz */
789 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
790 return;
791
792 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
793
794 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
795 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) {
796 if (mac->opmode == NL80211_IFTYPE_AP ||
797 mac->opmode == NL80211_IFTYPE_ADHOC ||
798 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
799 if (!(sta->vht_cap.vht_supported))
800 return;
801 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
802 if (!mac->bw_80 ||
803 !(sta->vht_cap.vht_supported))
804 return;
805 }
806 if (tcb_desc->hw_rate <=
807 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
808 return;
809 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
810 }
811 }
812
813 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
814 struct ieee80211_sta *sta)
815 {
816 struct rtl_priv *rtlpriv = rtl_priv(hw);
817 struct rtl_phy *rtlphy = &(rtlpriv->phy);
818 u8 hw_rate;
819 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
820
821 if ((get_rf_type(rtlphy) == RF_2T2R) &&
822 (tx_mcs_map & 0x000c) != 0x000c) {
823 if ((tx_mcs_map & 0x000c) >> 2 ==
824 IEEE80211_VHT_MCS_SUPPORT_0_7)
825 hw_rate =
826 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
827 else if ((tx_mcs_map & 0x000c) >> 2 ==
828 IEEE80211_VHT_MCS_SUPPORT_0_8)
829 hw_rate =
830 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
831 else
832 hw_rate =
833 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
834 } else {
835 if ((tx_mcs_map & 0x0003) ==
836 IEEE80211_VHT_MCS_SUPPORT_0_7)
837 hw_rate =
838 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
839 else if ((tx_mcs_map & 0x0003) ==
840 IEEE80211_VHT_MCS_SUPPORT_0_8)
841 hw_rate =
842 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
843 else
844 hw_rate =
845 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
846 }
847
848 return hw_rate;
849 }
850
851 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
852 struct ieee80211_sta *sta)
853 {
854 struct rtl_priv *rtlpriv = rtl_priv(hw);
855 struct rtl_phy *rtlphy = &rtlpriv->phy;
856 u8 hw_rate;
857
858 if ((get_rf_type(rtlphy) == RF_2T2R) &&
859 (sta->ht_cap.mcs.rx_mask[1] != 0))
860 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
861 else
862 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
863
864 return hw_rate;
865 }
866
867 /* mac80211's rate_idx is like this:
868 *
869 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
870 *
871 * B/G rate:
872 * (rx_status->flag & RX_FLAG_HT) = 0,
873 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
874 *
875 * N rate:
876 * (rx_status->flag & RX_FLAG_HT) = 1,
877 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
878 *
879 * 5G band:rx_status->band == NL80211_BAND_5GHZ
880 * A rate:
881 * (rx_status->flag & RX_FLAG_HT) = 0,
882 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
883 *
884 * N rate:
885 * (rx_status->flag & RX_FLAG_HT) = 1,
886 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
887 *
888 * VHT rates:
889 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
890 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
891 */
892 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
893 u8 desc_rate)
894 {
895 int rate_idx;
896
897 if (isvht) {
898 switch (desc_rate) {
899 case DESC_RATEVHT1SS_MCS0:
900 rate_idx = 0;
901 break;
902 case DESC_RATEVHT1SS_MCS1:
903 rate_idx = 1;
904 break;
905 case DESC_RATEVHT1SS_MCS2:
906 rate_idx = 2;
907 break;
908 case DESC_RATEVHT1SS_MCS3:
909 rate_idx = 3;
910 break;
911 case DESC_RATEVHT1SS_MCS4:
912 rate_idx = 4;
913 break;
914 case DESC_RATEVHT1SS_MCS5:
915 rate_idx = 5;
916 break;
917 case DESC_RATEVHT1SS_MCS6:
918 rate_idx = 6;
919 break;
920 case DESC_RATEVHT1SS_MCS7:
921 rate_idx = 7;
922 break;
923 case DESC_RATEVHT1SS_MCS8:
924 rate_idx = 8;
925 break;
926 case DESC_RATEVHT1SS_MCS9:
927 rate_idx = 9;
928 break;
929 case DESC_RATEVHT2SS_MCS0:
930 rate_idx = 0;
931 break;
932 case DESC_RATEVHT2SS_MCS1:
933 rate_idx = 1;
934 break;
935 case DESC_RATEVHT2SS_MCS2:
936 rate_idx = 2;
937 break;
938 case DESC_RATEVHT2SS_MCS3:
939 rate_idx = 3;
940 break;
941 case DESC_RATEVHT2SS_MCS4:
942 rate_idx = 4;
943 break;
944 case DESC_RATEVHT2SS_MCS5:
945 rate_idx = 5;
946 break;
947 case DESC_RATEVHT2SS_MCS6:
948 rate_idx = 6;
949 break;
950 case DESC_RATEVHT2SS_MCS7:
951 rate_idx = 7;
952 break;
953 case DESC_RATEVHT2SS_MCS8:
954 rate_idx = 8;
955 break;
956 case DESC_RATEVHT2SS_MCS9:
957 rate_idx = 9;
958 break;
959 default:
960 rate_idx = 0;
961 break;
962 }
963 return rate_idx;
964 }
965 if (false == isht) {
966 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
967 switch (desc_rate) {
968 case DESC_RATE1M:
969 rate_idx = 0;
970 break;
971 case DESC_RATE2M:
972 rate_idx = 1;
973 break;
974 case DESC_RATE5_5M:
975 rate_idx = 2;
976 break;
977 case DESC_RATE11M:
978 rate_idx = 3;
979 break;
980 case DESC_RATE6M:
981 rate_idx = 4;
982 break;
983 case DESC_RATE9M:
984 rate_idx = 5;
985 break;
986 case DESC_RATE12M:
987 rate_idx = 6;
988 break;
989 case DESC_RATE18M:
990 rate_idx = 7;
991 break;
992 case DESC_RATE24M:
993 rate_idx = 8;
994 break;
995 case DESC_RATE36M:
996 rate_idx = 9;
997 break;
998 case DESC_RATE48M:
999 rate_idx = 10;
1000 break;
1001 case DESC_RATE54M:
1002 rate_idx = 11;
1003 break;
1004 default:
1005 rate_idx = 0;
1006 break;
1007 }
1008 } else {
1009 switch (desc_rate) {
1010 case DESC_RATE6M:
1011 rate_idx = 0;
1012 break;
1013 case DESC_RATE9M:
1014 rate_idx = 1;
1015 break;
1016 case DESC_RATE12M:
1017 rate_idx = 2;
1018 break;
1019 case DESC_RATE18M:
1020 rate_idx = 3;
1021 break;
1022 case DESC_RATE24M:
1023 rate_idx = 4;
1024 break;
1025 case DESC_RATE36M:
1026 rate_idx = 5;
1027 break;
1028 case DESC_RATE48M:
1029 rate_idx = 6;
1030 break;
1031 case DESC_RATE54M:
1032 rate_idx = 7;
1033 break;
1034 default:
1035 rate_idx = 0;
1036 break;
1037 }
1038 }
1039 } else {
1040 switch (desc_rate) {
1041 case DESC_RATEMCS0:
1042 rate_idx = 0;
1043 break;
1044 case DESC_RATEMCS1:
1045 rate_idx = 1;
1046 break;
1047 case DESC_RATEMCS2:
1048 rate_idx = 2;
1049 break;
1050 case DESC_RATEMCS3:
1051 rate_idx = 3;
1052 break;
1053 case DESC_RATEMCS4:
1054 rate_idx = 4;
1055 break;
1056 case DESC_RATEMCS5:
1057 rate_idx = 5;
1058 break;
1059 case DESC_RATEMCS6:
1060 rate_idx = 6;
1061 break;
1062 case DESC_RATEMCS7:
1063 rate_idx = 7;
1064 break;
1065 case DESC_RATEMCS8:
1066 rate_idx = 8;
1067 break;
1068 case DESC_RATEMCS9:
1069 rate_idx = 9;
1070 break;
1071 case DESC_RATEMCS10:
1072 rate_idx = 10;
1073 break;
1074 case DESC_RATEMCS11:
1075 rate_idx = 11;
1076 break;
1077 case DESC_RATEMCS12:
1078 rate_idx = 12;
1079 break;
1080 case DESC_RATEMCS13:
1081 rate_idx = 13;
1082 break;
1083 case DESC_RATEMCS14:
1084 rate_idx = 14;
1085 break;
1086 case DESC_RATEMCS15:
1087 rate_idx = 15;
1088 break;
1089 default:
1090 rate_idx = 0;
1091 break;
1092 }
1093 }
1094 return rate_idx;
1095 }
1096 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1097
1098 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1099 struct ieee80211_tx_info *info,
1100 struct ieee80211_sta *sta,
1101 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1102 {
1103 struct rtl_priv *rtlpriv = rtl_priv(hw);
1104 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1105 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1106 struct ieee80211_rate *txrate;
1107 __le16 fc = rtl_get_fc(skb);
1108
1109 txrate = ieee80211_get_tx_rate(hw, info);
1110 if (txrate)
1111 tcb_desc->hw_rate = txrate->hw_value;
1112
1113 if (ieee80211_is_data(fc)) {
1114 /*
1115 *we set data rate INX 0
1116 *in rtl_rc.c if skb is special data or
1117 *mgt which need low data rate.
1118 */
1119
1120 /*
1121 *So tcb_desc->hw_rate is just used for
1122 *special data and mgt frames
1123 */
1124 if (info->control.rates[0].idx == 0 ||
1125 ieee80211_is_nullfunc(fc)) {
1126 tcb_desc->use_driver_rate = true;
1127 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1128
1129 tcb_desc->disable_ratefallback = 1;
1130 } else {
1131 /*
1132 *because hw will nerver use hw_rate
1133 *when tcb_desc->use_driver_rate = false
1134 *so we never set highest N rate here,
1135 *and N rate will all be controlled by FW
1136 *when tcb_desc->use_driver_rate = false
1137 */
1138 if (sta && sta->vht_cap.vht_supported) {
1139 tcb_desc->hw_rate =
1140 _rtl_get_vht_highest_n_rate(hw, sta);
1141 } else {
1142 if (sta && (sta->ht_cap.ht_supported)) {
1143 tcb_desc->hw_rate =
1144 _rtl_get_highest_n_rate(hw, sta);
1145 } else {
1146 if (rtlmac->mode == WIRELESS_MODE_B) {
1147 tcb_desc->hw_rate =
1148 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1149 } else {
1150 tcb_desc->hw_rate =
1151 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1152 }
1153 }
1154 }
1155 }
1156
1157 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
1158 tcb_desc->multicast = 1;
1159 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
1160 tcb_desc->broadcast = 1;
1161
1162 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1163 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1164 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1165 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1166 _rtl_query_protection_mode(hw, tcb_desc, info);
1167 } else {
1168 tcb_desc->use_driver_rate = true;
1169 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
1170 tcb_desc->disable_ratefallback = 1;
1171 tcb_desc->mac_id = 0;
1172 tcb_desc->packet_bw = false;
1173 }
1174 }
1175 EXPORT_SYMBOL(rtl_get_tcb_desc);
1176
1177 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1178 {
1179 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1180 struct rtl_priv *rtlpriv = rtl_priv(hw);
1181 __le16 fc = rtl_get_fc(skb);
1182
1183 if (rtlpriv->dm.supp_phymode_switch &&
1184 mac->link_state < MAC80211_LINKED &&
1185 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1186 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1187 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1188 }
1189 if (ieee80211_is_auth(fc)) {
1190 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1191 rtl_ips_nic_on(hw);
1192
1193 mac->link_state = MAC80211_LINKING;
1194 /* Dul mac */
1195 rtlpriv->phy.need_iqk = true;
1196
1197 }
1198
1199 return true;
1200 }
1201 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1202
1203 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1204 u8 *bssid, u16 tid);
1205
1206 static void process_agg_start(struct ieee80211_hw *hw,
1207 struct ieee80211_hdr *hdr, u16 tid)
1208 {
1209 struct rtl_priv *rtlpriv = rtl_priv(hw);
1210 struct ieee80211_rx_status rx_status = { 0 };
1211 struct sk_buff *skb_delba = NULL;
1212
1213 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1214 if (skb_delba) {
1215 rx_status.freq = hw->conf.chandef.chan->center_freq;
1216 rx_status.band = hw->conf.chandef.chan->band;
1217 rx_status.flag |= RX_FLAG_DECRYPTED;
1218 rx_status.flag |= RX_FLAG_MACTIME_START;
1219 rx_status.rate_idx = 0;
1220 rx_status.signal = 50 + 10;
1221 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1222 &rx_status, sizeof(rx_status));
1223 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1224 "fake del\n",
1225 skb_delba->data,
1226 skb_delba->len);
1227 ieee80211_rx_irqsafe(hw, skb_delba);
1228 }
1229 }
1230
1231 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1232 {
1233 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1234 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1235 struct rtl_priv *rtlpriv = rtl_priv(hw);
1236 __le16 fc = rtl_get_fc(skb);
1237 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1238 u8 category;
1239
1240 if (!ieee80211_is_action(fc))
1241 return true;
1242
1243 category = *act;
1244 act++;
1245 switch (category) {
1246 case ACT_CAT_BA:
1247 switch (*act) {
1248 case ACT_ADDBAREQ:
1249 if (mac->act_scanning)
1250 return false;
1251
1252 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1253 "%s ACT_ADDBAREQ From :%pM\n",
1254 is_tx ? "Tx" : "Rx", hdr->addr2);
1255 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1256 skb->data, skb->len);
1257 if (!is_tx) {
1258 struct ieee80211_sta *sta = NULL;
1259 struct rtl_sta_info *sta_entry = NULL;
1260 struct rtl_tid_data *tid_data;
1261 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1262 u16 capab = 0, tid = 0;
1263
1264 rcu_read_lock();
1265 sta = rtl_find_sta(hw, hdr->addr3);
1266 if (sta == NULL) {
1267 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1268 DBG_DMESG, "sta is NULL\n");
1269 rcu_read_unlock();
1270 return true;
1271 }
1272
1273 sta_entry =
1274 (struct rtl_sta_info *)sta->drv_priv;
1275 if (!sta_entry) {
1276 rcu_read_unlock();
1277 return true;
1278 }
1279 capab =
1280 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1281 tid = (capab &
1282 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1283 tid_data = &sta_entry->tids[tid];
1284 if (tid_data->agg.rx_agg_state ==
1285 RTL_RX_AGG_START)
1286 process_agg_start(hw, hdr, tid);
1287 rcu_read_unlock();
1288 }
1289 break;
1290 case ACT_ADDBARSP:
1291 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1292 "%s ACT_ADDBARSP From :%pM\n",
1293 is_tx ? "Tx" : "Rx", hdr->addr2);
1294 break;
1295 case ACT_DELBA:
1296 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1297 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1298 break;
1299 }
1300 break;
1301 default:
1302 break;
1303 }
1304
1305 return true;
1306 }
1307 EXPORT_SYMBOL_GPL(rtl_action_proc);
1308
1309 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
1310 {
1311 struct ieee80211_hw *hw = rtlpriv->hw;
1312
1313 rtlpriv->ra.is_special_data = true;
1314 if (rtlpriv->cfg->ops->get_btc_status())
1315 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1316 rtlpriv, 1);
1317 rtl_lps_leave(hw);
1318 ppsc->last_delaylps_stamp_jiffies = jiffies;
1319 }
1320
1321 /*should call before software enc*/
1322 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1323 bool is_enc)
1324 {
1325 struct rtl_priv *rtlpriv = rtl_priv(hw);
1326 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1327 __le16 fc = rtl_get_fc(skb);
1328 u16 ether_type;
1329 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1330 u8 encrypt_header_len = 0;
1331 u8 offset;
1332 const struct iphdr *ip;
1333
1334 if (!ieee80211_is_data(fc))
1335 goto end;
1336
1337 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1338 case WEP40_ENCRYPTION:
1339 case WEP104_ENCRYPTION:
1340 encrypt_header_len = 4;/*WEP_IV_LEN*/
1341 break;
1342 case TKIP_ENCRYPTION:
1343 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1344 break;
1345 case AESCCMP_ENCRYPTION:
1346 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1347 break;
1348 default:
1349 break;
1350 }
1351
1352 offset = mac_hdr_len + SNAP_SIZE;
1353 if (is_enc)
1354 offset += encrypt_header_len;
1355 ether_type = be16_to_cpup((__be16 *)(skb->data + offset));
1356
1357 if (ETH_P_IP == ether_type) {
1358 ip = (struct iphdr *)((u8 *)skb->data + offset +
1359 PROTOC_TYPE_SIZE);
1360 if (IPPROTO_UDP == ip->protocol) {
1361 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1362 (ip->ihl << 2));
1363 if (((((u8 *)udp)[1] == 68) &&
1364 (((u8 *)udp)[3] == 67)) ||
1365 ((((u8 *)udp)[1] == 67) &&
1366 (((u8 *)udp)[3] == 68))) {
1367 /* 68 : UDP BOOTP client
1368 * 67 : UDP BOOTP server
1369 */
1370 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1371 DBG_DMESG, "dhcp %s !!\n",
1372 (is_tx) ? "Tx" : "Rx");
1373
1374 if (is_tx)
1375 setup_arp_tx(rtlpriv, ppsc);
1376 return true;
1377 }
1378 }
1379 } else if (ETH_P_ARP == ether_type) {
1380 if (is_tx)
1381 setup_arp_tx(rtlpriv, ppsc);
1382
1383 return true;
1384 } else if (ETH_P_PAE == ether_type) {
1385 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1386 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1387
1388 if (is_tx) {
1389 rtlpriv->ra.is_special_data = true;
1390 rtl_lps_leave(hw);
1391 ppsc->last_delaylps_stamp_jiffies = jiffies;
1392 }
1393
1394 return true;
1395 } else if (ETH_P_IPV6 == ether_type) {
1396 /* TODO: Handle any IPv6 cases that need special handling.
1397 * For now, always return false
1398 */
1399 goto end;
1400 }
1401
1402 end:
1403 rtlpriv->ra.is_special_data = false;
1404 return false;
1405 }
1406 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1407
1408 /*********************************************************
1409 *
1410 * functions called by core.c
1411 *
1412 *********************************************************/
1413 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1414 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1415 {
1416 struct rtl_priv *rtlpriv = rtl_priv(hw);
1417 struct rtl_tid_data *tid_data;
1418 struct rtl_sta_info *sta_entry = NULL;
1419
1420 if (sta == NULL)
1421 return -EINVAL;
1422
1423 if (unlikely(tid >= MAX_TID_COUNT))
1424 return -EINVAL;
1425
1426 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1427 if (!sta_entry)
1428 return -ENXIO;
1429 tid_data = &sta_entry->tids[tid];
1430
1431 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1432 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1433 tid_data->seq_number);
1434
1435 *ssn = tid_data->seq_number;
1436 tid_data->agg.agg_state = RTL_AGG_START;
1437
1438 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1439 return 0;
1440 }
1441
1442 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1443 struct ieee80211_sta *sta, u16 tid)
1444 {
1445 struct rtl_priv *rtlpriv = rtl_priv(hw);
1446 struct rtl_tid_data *tid_data;
1447 struct rtl_sta_info *sta_entry = NULL;
1448
1449 if (sta == NULL)
1450 return -EINVAL;
1451
1452 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1453 "on ra = %pM tid = %d\n", sta->addr, tid);
1454
1455 if (unlikely(tid >= MAX_TID_COUNT))
1456 return -EINVAL;
1457
1458 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1459 tid_data = &sta_entry->tids[tid];
1460 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1461
1462 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1463 return 0;
1464 }
1465
1466 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1467 struct ieee80211_sta *sta, u16 tid)
1468 {
1469 struct rtl_priv *rtlpriv = rtl_priv(hw);
1470 struct rtl_tid_data *tid_data;
1471 struct rtl_sta_info *sta_entry = NULL;
1472
1473 if (sta == NULL)
1474 return -EINVAL;
1475
1476 if (unlikely(tid >= MAX_TID_COUNT))
1477 return -EINVAL;
1478
1479 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1480 if (!sta_entry)
1481 return -ENXIO;
1482 tid_data = &sta_entry->tids[tid];
1483
1484 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1485 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1486 tid_data->seq_number);
1487
1488 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1489 return 0;
1490 }
1491
1492 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1493 struct ieee80211_sta *sta, u16 tid)
1494 {
1495 struct rtl_priv *rtlpriv = rtl_priv(hw);
1496 struct rtl_sta_info *sta_entry = NULL;
1497
1498 if (sta == NULL)
1499 return -EINVAL;
1500
1501 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1502 "on ra = %pM tid = %d\n", sta->addr, tid);
1503
1504 if (unlikely(tid >= MAX_TID_COUNT))
1505 return -EINVAL;
1506
1507 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1508 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1509
1510 return 0;
1511 }
1512 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1513 struct ieee80211_sta *sta, u16 tid)
1514 {
1515 struct rtl_priv *rtlpriv = rtl_priv(hw);
1516 struct rtl_sta_info *sta_entry = NULL;
1517
1518 if (sta == NULL)
1519 return -EINVAL;
1520
1521 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1522 "on ra = %pM tid = %d\n", sta->addr, tid);
1523
1524 if (unlikely(tid >= MAX_TID_COUNT))
1525 return -EINVAL;
1526
1527 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1528 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1529
1530 return 0;
1531 }
1532
1533 /*********************************************************
1534 *
1535 * wq & timer callback functions
1536 *
1537 *********************************************************/
1538 /* this function is used for roaming */
1539 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1540 {
1541 struct rtl_priv *rtlpriv = rtl_priv(hw);
1542 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1543
1544 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1545 return;
1546
1547 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1548 return;
1549
1550 /* check if this really is a beacon */
1551 if (!ieee80211_is_beacon(hdr->frame_control) &&
1552 !ieee80211_is_probe_resp(hdr->frame_control))
1553 return;
1554
1555 /* min. beacon length + FCS_LEN */
1556 if (skb->len <= 40 + FCS_LEN)
1557 return;
1558
1559 /* and only beacons from the associated BSSID, please */
1560 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1561 return;
1562
1563 rtlpriv->link_info.bcn_rx_inperiod++;
1564 }
1565 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1566
1567 void rtl_watchdog_wq_callback(void *data)
1568 {
1569 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1570 struct rtl_works,
1571 watchdog_wq);
1572 struct ieee80211_hw *hw = rtlworks->hw;
1573 struct rtl_priv *rtlpriv = rtl_priv(hw);
1574 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1575 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1576 bool busytraffic = false;
1577 bool tx_busy_traffic = false;
1578 bool rx_busy_traffic = false;
1579 bool higher_busytraffic = false;
1580 bool higher_busyrxtraffic = false;
1581 u8 idx, tid;
1582 u32 rx_cnt_inp4eriod = 0;
1583 u32 tx_cnt_inp4eriod = 0;
1584 u32 aver_rx_cnt_inperiod = 0;
1585 u32 aver_tx_cnt_inperiod = 0;
1586 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
1587 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
1588
1589 if (is_hal_stop(rtlhal))
1590 return;
1591
1592 /* <1> Determine if action frame is allowed */
1593 if (mac->link_state > MAC80211_NOLINK) {
1594 if (mac->cnt_after_linked < 20)
1595 mac->cnt_after_linked++;
1596 } else {
1597 mac->cnt_after_linked = 0;
1598 }
1599
1600 /* <2> to check if traffic busy, if
1601 * busytraffic we don't change channel
1602 */
1603 if (mac->link_state >= MAC80211_LINKED) {
1604
1605 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
1606 for (idx = 0; idx <= 2; idx++) {
1607 rtlpriv->link_info.num_rx_in4period[idx] =
1608 rtlpriv->link_info.num_rx_in4period[idx + 1];
1609 rtlpriv->link_info.num_tx_in4period[idx] =
1610 rtlpriv->link_info.num_tx_in4period[idx + 1];
1611 }
1612 rtlpriv->link_info.num_rx_in4period[3] =
1613 rtlpriv->link_info.num_rx_inperiod;
1614 rtlpriv->link_info.num_tx_in4period[3] =
1615 rtlpriv->link_info.num_tx_inperiod;
1616 for (idx = 0; idx <= 3; idx++) {
1617 rx_cnt_inp4eriod +=
1618 rtlpriv->link_info.num_rx_in4period[idx];
1619 tx_cnt_inp4eriod +=
1620 rtlpriv->link_info.num_tx_in4period[idx];
1621 }
1622 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
1623 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
1624
1625 /* (2) check traffic busy */
1626 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
1627 busytraffic = true;
1628 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
1629 rx_busy_traffic = true;
1630 else
1631 tx_busy_traffic = false;
1632 }
1633
1634 /* Higher Tx/Rx data. */
1635 if (aver_rx_cnt_inperiod > 4000 ||
1636 aver_tx_cnt_inperiod > 4000) {
1637 higher_busytraffic = true;
1638
1639 /* Extremely high Rx data. */
1640 if (aver_rx_cnt_inperiod > 5000)
1641 higher_busyrxtraffic = true;
1642 }
1643
1644 /* check every tid's tx traffic */
1645 for (tid = 0; tid <= 7; tid++) {
1646 for (idx = 0; idx <= 2; idx++)
1647 rtlpriv->link_info.tidtx_in4period[tid][idx] =
1648 rtlpriv->link_info.tidtx_in4period[tid]
1649 [idx + 1];
1650 rtlpriv->link_info.tidtx_in4period[tid][3] =
1651 rtlpriv->link_info.tidtx_inperiod[tid];
1652
1653 for (idx = 0; idx <= 3; idx++)
1654 tidtx_inp4eriod[tid] +=
1655 rtlpriv->link_info.tidtx_in4period[tid][idx];
1656 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
1657 if (aver_tidtx_inperiod[tid] > 5000)
1658 rtlpriv->link_info.higher_busytxtraffic[tid] =
1659 true;
1660 else
1661 rtlpriv->link_info.higher_busytxtraffic[tid] =
1662 false;
1663 }
1664
1665 if (((rtlpriv->link_info.num_rx_inperiod +
1666 rtlpriv->link_info.num_tx_inperiod) > 8) ||
1667 (rtlpriv->link_info.num_rx_inperiod > 2))
1668 rtl_lps_leave(hw);
1669 else
1670 rtl_lps_enter(hw);
1671 }
1672
1673 rtlpriv->link_info.num_rx_inperiod = 0;
1674 rtlpriv->link_info.num_tx_inperiod = 0;
1675 for (tid = 0; tid <= 7; tid++)
1676 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
1677
1678 rtlpriv->link_info.busytraffic = busytraffic;
1679 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
1680 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
1681 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
1682 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
1683
1684 /* <3> DM */
1685 if (!rtlpriv->cfg->mod_params->disable_watchdog)
1686 rtlpriv->cfg->ops->dm_watchdog(hw);
1687
1688 /* <4> roaming */
1689 if (mac->link_state == MAC80211_LINKED &&
1690 mac->opmode == NL80211_IFTYPE_STATION) {
1691 if ((rtlpriv->link_info.bcn_rx_inperiod +
1692 rtlpriv->link_info.num_rx_inperiod) == 0) {
1693 rtlpriv->link_info.roam_times++;
1694 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
1695 "AP off for %d s\n",
1696 (rtlpriv->link_info.roam_times * 2));
1697
1698 /* if we can't recv beacon for 10s,
1699 * we should reconnect this AP
1700 */
1701 if (rtlpriv->link_info.roam_times >= 5) {
1702 pr_err("AP off, try to reconnect now\n");
1703 rtlpriv->link_info.roam_times = 0;
1704 ieee80211_connection_loss(
1705 rtlpriv->mac80211.vif);
1706 }
1707 } else {
1708 rtlpriv->link_info.roam_times = 0;
1709 }
1710 }
1711
1712 if (rtlpriv->cfg->ops->get_btc_status())
1713 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
1714
1715 rtlpriv->link_info.bcn_rx_inperiod = 0;
1716 }
1717
1718 void rtl_watch_dog_timer_callback(unsigned long data)
1719 {
1720 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1721 struct rtl_priv *rtlpriv = rtl_priv(hw);
1722
1723 queue_delayed_work(rtlpriv->works.rtl_wq,
1724 &rtlpriv->works.watchdog_wq, 0);
1725
1726 mod_timer(&rtlpriv->works.watchdog_timer,
1727 jiffies + MSECS(RTL_WATCH_DOG_TIME));
1728 }
1729 void rtl_fwevt_wq_callback(void *data)
1730 {
1731 struct rtl_works *rtlworks =
1732 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
1733 struct ieee80211_hw *hw = rtlworks->hw;
1734 struct rtl_priv *rtlpriv = rtl_priv(hw);
1735
1736 rtlpriv->cfg->ops->c2h_command_handle(hw);
1737 }
1738
1739 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
1740 {
1741 struct rtl_priv *rtlpriv = rtl_priv(hw);
1742 unsigned long flags;
1743 struct rtl_c2hcmd *c2hcmd;
1744
1745 c2hcmd = kmalloc(sizeof(*c2hcmd),
1746 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
1747
1748 if (!c2hcmd)
1749 goto label_err;
1750
1751 c2hcmd->val = kmalloc(len,
1752 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
1753
1754 if (!c2hcmd->val)
1755 goto label_err2;
1756
1757 /* fill data */
1758 c2hcmd->tag = tag;
1759 c2hcmd->len = len;
1760 memcpy(c2hcmd->val, val, len);
1761
1762 /* enqueue */
1763 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
1764
1765 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
1766
1767 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
1768
1769 /* wake up wq */
1770 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
1771
1772 return;
1773
1774 label_err2:
1775 kfree(c2hcmd);
1776
1777 label_err:
1778 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
1779 "C2H cmd enqueue fail.\n");
1780 }
1781 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
1782
1783 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
1784 {
1785 struct rtl_priv *rtlpriv = rtl_priv(hw);
1786 unsigned long flags;
1787 struct rtl_c2hcmd *c2hcmd;
1788 int i;
1789
1790 for (i = 0; i < 200; i++) {
1791 /* dequeue a task */
1792 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
1793
1794 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
1795 struct rtl_c2hcmd, list);
1796
1797 if (c2hcmd)
1798 list_del(&c2hcmd->list);
1799
1800 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
1801
1802 /* do it */
1803 if (!c2hcmd)
1804 break;
1805
1806 if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
1807 rtlpriv->cfg->ops->c2h_content_parsing(hw,
1808 c2hcmd->tag, c2hcmd->len, c2hcmd->val);
1809
1810 /* free */
1811 kfree(c2hcmd->val);
1812
1813 kfree(c2hcmd);
1814 }
1815 }
1816
1817 void rtl_c2hcmd_wq_callback(void *data)
1818 {
1819 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1820 struct rtl_works,
1821 c2hcmd_wq);
1822 struct ieee80211_hw *hw = rtlworks->hw;
1823
1824 rtl_c2hcmd_launcher(hw, 1);
1825 }
1826
1827 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
1828 {
1829 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
1830 struct rtl_priv *rtlpriv = rtl_priv(hw);
1831 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
1832
1833 if (buddy_priv == NULL)
1834 return;
1835
1836 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
1837 }
1838 /*********************************************************
1839 *
1840 * frame process functions
1841 *
1842 *********************************************************/
1843 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
1844 {
1845 struct ieee80211_mgmt *mgmt = (void *)data;
1846 u8 *pos, *end;
1847
1848 pos = (u8 *)mgmt->u.beacon.variable;
1849 end = data + len;
1850 while (pos < end) {
1851 if (pos + 2 + pos[1] > end)
1852 return NULL;
1853
1854 if (pos[0] == ie)
1855 return pos;
1856
1857 pos += 2 + pos[1];
1858 }
1859 return NULL;
1860 }
1861
1862 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
1863 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
1864 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
1865 enum ieee80211_smps_mode smps,
1866 u8 *da, u8 *bssid)
1867 {
1868 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1869 struct sk_buff *skb;
1870 struct ieee80211_mgmt *action_frame;
1871
1872 /* 27 = header + category + action + smps mode */
1873 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
1874 if (!skb)
1875 return NULL;
1876
1877 skb_reserve(skb, hw->extra_tx_headroom);
1878 action_frame = (void *)skb_put(skb, 27);
1879 memset(action_frame, 0, 27);
1880 memcpy(action_frame->da, da, ETH_ALEN);
1881 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
1882 memcpy(action_frame->bssid, bssid, ETH_ALEN);
1883 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1884 IEEE80211_STYPE_ACTION);
1885 action_frame->u.action.category = WLAN_CATEGORY_HT;
1886 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
1887 switch (smps) {
1888 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
1889 case IEEE80211_SMPS_NUM_MODES:/* 4 */
1890 WARN_ON(1);
1891 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
1892 * According to Kernel Code, here is right.
1893 */
1894 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
1895 action_frame->u.action.u.ht_smps.smps_control =
1896 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
1897 break;
1898 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
1899 action_frame->u.action.u.ht_smps.smps_control =
1900 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
1901 break;
1902 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
1903 action_frame->u.action.u.ht_smps.smps_control =
1904 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
1905 break;
1906 }
1907
1908 return skb;
1909 }
1910
1911 int rtl_send_smps_action(struct ieee80211_hw *hw,
1912 struct ieee80211_sta *sta,
1913 enum ieee80211_smps_mode smps)
1914 {
1915 struct rtl_priv *rtlpriv = rtl_priv(hw);
1916 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1917 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1918 struct sk_buff *skb = NULL;
1919 struct rtl_tcb_desc tcb_desc;
1920 u8 bssid[ETH_ALEN] = {0};
1921
1922 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1923
1924 if (rtlpriv->mac80211.act_scanning)
1925 goto err_free;
1926
1927 if (!sta)
1928 goto err_free;
1929
1930 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
1931 goto err_free;
1932
1933 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1934 goto err_free;
1935
1936 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
1937 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
1938 else
1939 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
1940
1941 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
1942 /* this is a type = mgmt * stype = action frame */
1943 if (skb) {
1944 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1945 struct rtl_sta_info *sta_entry =
1946 (struct rtl_sta_info *) sta->drv_priv;
1947 sta_entry->mimo_ps = smps;
1948 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */
1949
1950 info->control.rates[0].idx = 0;
1951 info->band = hw->conf.chandef.chan->band;
1952 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
1953 }
1954 return 1;
1955
1956 err_free:
1957 return 0;
1958 }
1959 EXPORT_SYMBOL(rtl_send_smps_action);
1960
1961 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
1962 {
1963 struct rtl_priv *rtlpriv = rtl_priv(hw);
1964 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1965 enum io_type iotype;
1966
1967 if (!is_hal_stop(rtlhal)) {
1968 switch (operation) {
1969 case SCAN_OPT_BACKUP:
1970 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
1971 rtlpriv->cfg->ops->set_hw_reg(hw,
1972 HW_VAR_IO_CMD,
1973 (u8 *)&iotype);
1974 break;
1975 case SCAN_OPT_RESTORE:
1976 iotype = IO_CMD_RESUME_DM_BY_SCAN;
1977 rtlpriv->cfg->ops->set_hw_reg(hw,
1978 HW_VAR_IO_CMD,
1979 (u8 *)&iotype);
1980 break;
1981 default:
1982 pr_err("Unknown Scan Backup operation.\n");
1983 break;
1984 }
1985 }
1986 }
1987 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
1988
1989 /* because mac80211 have issues when can receive del ba
1990 * so here we just make a fake del_ba if we receive a ba_req
1991 * but rx_agg was opened to let mac80211 release some ba
1992 * related resources, so please this del_ba for tx
1993 */
1994 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
1995 u8 *sa, u8 *bssid, u16 tid)
1996 {
1997 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1998 struct sk_buff *skb;
1999 struct ieee80211_mgmt *action_frame;
2000 u16 params;
2001
2002 /* 27 = header + category + action + smps mode */
2003 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2004 if (!skb)
2005 return NULL;
2006
2007 skb_reserve(skb, hw->extra_tx_headroom);
2008 action_frame = (void *)skb_put(skb, 34);
2009 memset(action_frame, 0, 34);
2010 memcpy(action_frame->sa, sa, ETH_ALEN);
2011 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2012 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2013 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2014 IEEE80211_STYPE_ACTION);
2015 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2016 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2017 params = (u16)(1 << 11); /* bit 11 initiator */
2018 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2019
2020 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2021 action_frame->u.action.u.delba.reason_code =
2022 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2023
2024 return skb;
2025 }
2026
2027 /*********************************************************
2028 *
2029 * IOT functions
2030 *
2031 *********************************************************/
2032 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2033 struct octet_string vendor_ie)
2034 {
2035 struct rtl_priv *rtlpriv = rtl_priv(hw);
2036 bool matched = false;
2037 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2038 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2039 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2040 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2041 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2042 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2043 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2044 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2045
2046 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2047 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2048 rtlpriv->mac80211.vendor = PEER_ATH;
2049 matched = true;
2050 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2051 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2052 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2053 rtlpriv->mac80211.vendor = PEER_BROAD;
2054 matched = true;
2055 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2056 rtlpriv->mac80211.vendor = PEER_RAL;
2057 matched = true;
2058 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2059 rtlpriv->mac80211.vendor = PEER_CISCO;
2060 matched = true;
2061 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2062 rtlpriv->mac80211.vendor = PEER_MARV;
2063 matched = true;
2064 }
2065
2066 return matched;
2067 }
2068
2069 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2070 unsigned int len)
2071 {
2072 struct ieee80211_mgmt *mgmt = (void *)data;
2073 struct octet_string vendor_ie;
2074 u8 *pos, *end;
2075
2076 pos = (u8 *)mgmt->u.beacon.variable;
2077 end = data + len;
2078 while (pos < end) {
2079 if (pos[0] == 221) {
2080 vendor_ie.length = pos[1];
2081 vendor_ie.octet = &pos[2];
2082 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2083 return true;
2084 }
2085
2086 if (pos + 2 + pos[1] > end)
2087 return false;
2088
2089 pos += 2 + pos[1];
2090 }
2091 return false;
2092 }
2093
2094 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2095 {
2096 struct rtl_priv *rtlpriv = rtl_priv(hw);
2097 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2098 struct ieee80211_hdr *hdr = (void *)data;
2099 u32 vendor = PEER_UNKNOWN;
2100
2101 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2102 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2103 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2104 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2105 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2106 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2107 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2108 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2109 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2110 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2111 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2112 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2113 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2114 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2115 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2116 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2117
2118 if (mac->opmode != NL80211_IFTYPE_STATION)
2119 return;
2120
2121 if (mac->link_state == MAC80211_NOLINK) {
2122 mac->vendor = PEER_UNKNOWN;
2123 return;
2124 }
2125
2126 if (mac->cnt_after_linked > 2)
2127 return;
2128
2129 /* check if this really is a beacon */
2130 if (!ieee80211_is_beacon(hdr->frame_control))
2131 return;
2132
2133 /* min. beacon length + FCS_LEN */
2134 if (len <= 40 + FCS_LEN)
2135 return;
2136
2137 /* and only beacons from the associated BSSID, please */
2138 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2139 return;
2140
2141 if (rtl_find_221_ie(hw, data, len))
2142 vendor = mac->vendor;
2143
2144 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2145 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2146 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2147 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2148 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2149 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2150 vendor == PEER_ATH) {
2151 vendor = PEER_ATH;
2152 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2153 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2154 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2155 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2156 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2157 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2158 vendor == PEER_RAL) {
2159 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2160 vendor = PEER_RAL;
2161 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2162 vendor == PEER_CISCO) {
2163 vendor = PEER_CISCO;
2164 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2165 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2166 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2167 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2168 vendor == PEER_BROAD) {
2169 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2170 vendor = PEER_BROAD;
2171 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2172 vendor == PEER_MARV) {
2173 vendor = PEER_MARV;
2174 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2175 }
2176
2177 mac->vendor = vendor;
2178 }
2179 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2180
2181 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2182 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2183 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2184 MODULE_LICENSE("GPL");
2185 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2186
2187 struct rtl_global_var rtl_global_var = {};
2188 EXPORT_SYMBOL_GPL(rtl_global_var);
2189
2190 static int __init rtl_core_module_init(void)
2191 {
2192 if (rtl_rate_control_register())
2193 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2194
2195 /* init some global vars */
2196 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2197 spin_lock_init(&rtl_global_var.glb_list_lock);
2198
2199 return 0;
2200 }
2201
2202 static void __exit rtl_core_module_exit(void)
2203 {
2204 /*RC*/
2205 rtl_rate_control_unregister();
2206 }
2207
2208 module_init(rtl_core_module_init);
2209 module_exit(rtl_core_module_exit);
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