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
rtl_tid_to_ac(u8 tid)168 u8 rtl_tid_to_ac(u8 tid)
169 {
170 return tid_to_ac[tid];
171 }
172
_rtl_init_hw_ht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_ht_cap * ht_cap)173 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
174 struct ieee80211_sta_ht_cap *ht_cap)
175 {
176 struct rtl_priv *rtlpriv = rtl_priv(hw);
177 struct rtl_phy *rtlphy = &rtlpriv->phy;
178
179 ht_cap->ht_supported = true;
180 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
181 IEEE80211_HT_CAP_SGI_40 |
182 IEEE80211_HT_CAP_SGI_20 |
183 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
184
185 if (rtlpriv->rtlhal.disable_amsdu_8k)
186 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
187
188 /*
189 *Maximum length of AMPDU that the STA can receive.
190 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
191 */
192 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
193
194 /*Minimum MPDU start spacing , */
195 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
196
197 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
198
199 /*hw->wiphy->bands[NL80211_BAND_2GHZ]
200 *base on ant_num
201 *rx_mask: RX mask
202 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
203 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
204 *if rx_ant >= 3 rx_mask[2]= 0xff;
205 *if BW_40 rx_mask[4]= 0x01;
206 *highest supported RX rate
207 */
208 if (rtlpriv->dm.supp_phymode_switch) {
209 pr_info("Support phy mode switch\n");
210
211 ht_cap->mcs.rx_mask[0] = 0xFF;
212 ht_cap->mcs.rx_mask[1] = 0xFF;
213 ht_cap->mcs.rx_mask[4] = 0x01;
214
215 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
216 } else {
217 if (get_rf_type(rtlphy) == RF_1T2R ||
218 get_rf_type(rtlphy) == RF_2T2R) {
219 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
220 "1T2R or 2T2R\n");
221 ht_cap->mcs.rx_mask[0] = 0xFF;
222 ht_cap->mcs.rx_mask[1] = 0xFF;
223 ht_cap->mcs.rx_mask[4] = 0x01;
224
225 ht_cap->mcs.rx_highest =
226 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
227 } else if (get_rf_type(rtlphy) == RF_1T1R) {
228 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
229
230 ht_cap->mcs.rx_mask[0] = 0xFF;
231 ht_cap->mcs.rx_mask[1] = 0x00;
232 ht_cap->mcs.rx_mask[4] = 0x01;
233
234 ht_cap->mcs.rx_highest =
235 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
236 }
237 }
238 }
239
_rtl_init_hw_vht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_vht_cap * vht_cap)240 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
241 struct ieee80211_sta_vht_cap *vht_cap)
242 {
243 struct rtl_priv *rtlpriv = rtl_priv(hw);
244 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
245
246 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
247 rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
248 u16 mcs_map;
249
250 vht_cap->vht_supported = true;
251 vht_cap->cap =
252 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
253 IEEE80211_VHT_CAP_SHORT_GI_80 |
254 IEEE80211_VHT_CAP_TXSTBC |
255 IEEE80211_VHT_CAP_RXSTBC_1 |
256 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
257 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
258 IEEE80211_VHT_CAP_HTC_VHT |
259 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
260 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
261 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
262 0;
263
264 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
265 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
266 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
267 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
268 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
272
273 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
274 vht_cap->vht_mcs.rx_highest =
275 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
276 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
277 vht_cap->vht_mcs.tx_highest =
278 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
279 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
280 u16 mcs_map;
281
282 vht_cap->vht_supported = true;
283 vht_cap->cap =
284 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
285 IEEE80211_VHT_CAP_SHORT_GI_80 |
286 IEEE80211_VHT_CAP_TXSTBC |
287 IEEE80211_VHT_CAP_RXSTBC_1 |
288 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
289 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
290 IEEE80211_VHT_CAP_HTC_VHT |
291 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
292 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
293 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
294 0;
295
296 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
297 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
298 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
299 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
300 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
301 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
304
305 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
306 vht_cap->vht_mcs.rx_highest =
307 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
308 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
309 vht_cap->vht_mcs.tx_highest =
310 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
311 }
312 }
313
_rtl_init_mac80211(struct ieee80211_hw * hw)314 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
315 {
316 struct rtl_priv *rtlpriv = rtl_priv(hw);
317 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
318 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
319 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
320 struct ieee80211_supported_band *sband;
321
322 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
323 rtlhal->bandset == BAND_ON_BOTH) {
324 /* 1: 2.4 G bands */
325 /* <1> use mac->bands as mem for hw->wiphy->bands */
326 sband = &rtlmac->bands[NL80211_BAND_2GHZ];
327
328 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
329 * to default value(1T1R)
330 */
331 memcpy(&rtlmac->bands[NL80211_BAND_2GHZ], &rtl_band_2ghz,
332 sizeof(struct ieee80211_supported_band));
333
334 /* <3> init ht cap base on ant_num */
335 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
336
337 /* <4> set mac->sband to wiphy->sband */
338 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
339
340 /* 2: 5 G bands */
341 /* <1> use mac->bands as mem for hw->wiphy->bands */
342 sband = &rtlmac->bands[NL80211_BAND_5GHZ];
343
344 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
345 * to default value(1T1R)
346 */
347 memcpy(&rtlmac->bands[NL80211_BAND_5GHZ], &rtl_band_5ghz,
348 sizeof(struct ieee80211_supported_band));
349
350 /* <3> init ht cap base on ant_num */
351 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
352
353 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
354 /* <4> set mac->sband to wiphy->sband */
355 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
356 } else {
357 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
358 /* <1> use mac->bands as mem for hw->wiphy->bands */
359 sband = &rtlmac->bands[NL80211_BAND_2GHZ];
360
361 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
362 * to default value(1T1R)
363 */
364 memcpy(&rtlmac->bands[NL80211_BAND_2GHZ],
365 &rtl_band_2ghz,
366 sizeof(struct ieee80211_supported_band));
367
368 /* <3> init ht cap base on ant_num */
369 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
370
371 /* <4> set mac->sband to wiphy->sband */
372 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
373 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
374 /* <1> use mac->bands as mem for hw->wiphy->bands */
375 sband = &rtlmac->bands[NL80211_BAND_5GHZ];
376
377 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
378 * to default value(1T1R)
379 */
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 ieee80211_hw_set(hw, SUPPORTS_TX_FRAG);
403 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
404 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
405
406 /* swlps or hwlps has been set in diff chip in init_sw_vars */
407 if (rtlpriv->psc.swctrl_lps) {
408 ieee80211_hw_set(hw, SUPPORTS_PS);
409 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
410 }
411 if (rtlpriv->psc.fwctrl_lps) {
412 ieee80211_hw_set(hw, SUPPORTS_PS);
413 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
414 }
415 hw->wiphy->interface_modes =
416 BIT(NL80211_IFTYPE_AP) |
417 BIT(NL80211_IFTYPE_STATION) |
418 BIT(NL80211_IFTYPE_ADHOC) |
419 BIT(NL80211_IFTYPE_MESH_POINT) |
420 BIT(NL80211_IFTYPE_P2P_CLIENT) |
421 BIT(NL80211_IFTYPE_P2P_GO);
422 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
423
424 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
425
426 hw->wiphy->rts_threshold = 2347;
427
428 hw->queues = AC_MAX;
429 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
430
431 /* TODO: Correct this value for our hw */
432 hw->max_listen_interval = MAX_LISTEN_INTERVAL;
433 hw->max_rate_tries = MAX_RATE_TRIES;
434 /* hw->max_rates = 1; */
435 hw->sta_data_size = sizeof(struct rtl_sta_info);
436
437 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
438 #ifdef CONFIG_PM
439 if (rtlpriv->psc.wo_wlan_mode) {
440 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
441 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
442 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
443 rtlpriv->wowlan.n_patterns =
444 MAX_SUPPORT_WOL_PATTERN_NUM;
445 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
446 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
447 }
448 hw->wiphy->wowlan = &rtlpriv->wowlan;
449 }
450 #endif
451
452 /* <6> mac address */
453 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
454 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
455 } else {
456 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
457
458 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
459 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
460 }
461 }
462
_rtl_init_deferred_work(struct ieee80211_hw * hw)463 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
464 {
465 struct rtl_priv *rtlpriv = rtl_priv(hw);
466
467 /* <1> timer */
468 setup_timer(&rtlpriv->works.watchdog_timer,
469 rtl_watch_dog_timer_callback, (unsigned long)hw);
470 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
471 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
472 /* <2> work queue */
473 rtlpriv->works.hw = hw;
474 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
475 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
476 (void *)rtl_watchdog_wq_callback);
477 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
478 (void *)rtl_ips_nic_off_wq_callback);
479 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
480 (void *)rtl_swlps_wq_callback);
481 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
482 (void *)rtl_swlps_rfon_wq_callback);
483 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
484 (void *)rtl_fwevt_wq_callback);
485 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
486 (void *)rtl_c2hcmd_wq_callback);
487 }
488
rtl_deinit_deferred_work(struct ieee80211_hw * hw)489 void rtl_deinit_deferred_work(struct ieee80211_hw *hw)
490 {
491 struct rtl_priv *rtlpriv = rtl_priv(hw);
492
493 del_timer_sync(&rtlpriv->works.watchdog_timer);
494
495 cancel_delayed_work(&rtlpriv->works.watchdog_wq);
496 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
497 cancel_delayed_work(&rtlpriv->works.ps_work);
498 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
499 cancel_delayed_work(&rtlpriv->works.fwevt_wq);
500 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq);
501 }
502
rtl_init_rfkill(struct ieee80211_hw * hw)503 void rtl_init_rfkill(struct ieee80211_hw *hw)
504 {
505 struct rtl_priv *rtlpriv = rtl_priv(hw);
506
507 bool radio_state;
508 bool blocked;
509 u8 valid = 0;
510
511 /*set init state to on */
512 rtlpriv->rfkill.rfkill_state = true;
513 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
514
515 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
516
517 if (valid) {
518 pr_info("rtlwifi: wireless switch is %s\n",
519 rtlpriv->rfkill.rfkill_state ? "on" : "off");
520
521 rtlpriv->rfkill.rfkill_state = radio_state;
522
523 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
524 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
525 }
526
527 wiphy_rfkill_start_polling(hw->wiphy);
528 }
529
rtl_deinit_rfkill(struct ieee80211_hw * hw)530 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
531 {
532 wiphy_rfkill_stop_polling(hw->wiphy);
533 }
534
rtl_init_core(struct ieee80211_hw * hw)535 int rtl_init_core(struct ieee80211_hw *hw)
536 {
537 struct rtl_priv *rtlpriv = rtl_priv(hw);
538 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
539
540 /* <1> init mac80211 */
541 _rtl_init_mac80211(hw);
542 rtlmac->hw = hw;
543
544 /* <2> rate control register */
545 hw->rate_control_algorithm = "rtl_rc";
546
547 /*
548 * <3> init CRDA must come after init
549 * mac80211 hw in _rtl_init_mac80211.
550 */
551 if (rtl_regd_init(hw, rtl_reg_notifier)) {
552 pr_err("REGD init failed\n");
553 return 1;
554 }
555
556 /* <4> locks */
557 mutex_init(&rtlpriv->locks.conf_mutex);
558 mutex_init(&rtlpriv->locks.ips_mutex);
559 mutex_init(&rtlpriv->locks.lps_mutex);
560 spin_lock_init(&rtlpriv->locks.irq_th_lock);
561 spin_lock_init(&rtlpriv->locks.h2c_lock);
562 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
563 spin_lock_init(&rtlpriv->locks.rf_lock);
564 spin_lock_init(&rtlpriv->locks.waitq_lock);
565 spin_lock_init(&rtlpriv->locks.entry_list_lock);
566 spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
567 spin_lock_init(&rtlpriv->locks.scan_list_lock);
568 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
569 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
570 spin_lock_init(&rtlpriv->locks.iqk_lock);
571 /* <5> init list */
572 INIT_LIST_HEAD(&rtlpriv->entry_list);
573 INIT_LIST_HEAD(&rtlpriv->c2hcmd_list);
574 INIT_LIST_HEAD(&rtlpriv->scan_list.list);
575
576 rtlmac->link_state = MAC80211_NOLINK;
577
578 /* <6> init deferred work */
579 _rtl_init_deferred_work(hw);
580
581 return 0;
582 }
583
584 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
585
rtl_deinit_core(struct ieee80211_hw * hw)586 void rtl_deinit_core(struct ieee80211_hw *hw)
587 {
588 rtl_c2hcmd_launcher(hw, 0);
589 rtl_free_entries_from_scan_list(hw);
590 }
591
rtl_init_rx_config(struct ieee80211_hw * hw)592 void rtl_init_rx_config(struct ieee80211_hw *hw)
593 {
594 struct rtl_priv *rtlpriv = rtl_priv(hw);
595 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
596
597 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *)&mac->rx_conf);
598 }
599
600 /*********************************************************
601 *
602 * tx information functions
603 *
604 *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)605 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
606 struct rtl_tcb_desc *tcb_desc,
607 struct ieee80211_tx_info *info)
608 {
609 struct rtl_priv *rtlpriv = rtl_priv(hw);
610 u8 rate_flag = info->control.rates[0].flags;
611
612 tcb_desc->use_shortpreamble = false;
613
614 /* 1M can only use Long Preamble. 11B spec */
615 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
616 return;
617 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
618 tcb_desc->use_shortpreamble = true;
619 }
620
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)621 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
622 struct ieee80211_sta *sta,
623 struct rtl_tcb_desc *tcb_desc,
624 struct ieee80211_tx_info *info)
625 {
626 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
627 u8 rate_flag = info->control.rates[0].flags;
628 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
629 u8 sgi_80 = 0, bw_80 = 0;
630
631 tcb_desc->use_shortgi = false;
632
633 if (!sta)
634 return;
635
636 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
637 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
638 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
639
640 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
641 return;
642
643 if (!sgi_40 && !sgi_20)
644 return;
645
646 if (mac->opmode == NL80211_IFTYPE_STATION) {
647 bw_40 = mac->bw_40;
648 bw_80 = mac->bw_80;
649 } else if (mac->opmode == NL80211_IFTYPE_AP ||
650 mac->opmode == NL80211_IFTYPE_ADHOC ||
651 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
652 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
653 bw_80 = sta->vht_cap.vht_supported;
654 }
655
656 if (bw_80) {
657 if (sgi_80)
658 tcb_desc->use_shortgi = true;
659 else
660 tcb_desc->use_shortgi = false;
661 } else {
662 if (bw_40 && sgi_40)
663 tcb_desc->use_shortgi = true;
664 else if (!bw_40 && sgi_20)
665 tcb_desc->use_shortgi = true;
666 }
667
668 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
669 tcb_desc->use_shortgi = false;
670 }
671
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)672 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
673 struct rtl_tcb_desc *tcb_desc,
674 struct ieee80211_tx_info *info)
675 {
676 struct rtl_priv *rtlpriv = rtl_priv(hw);
677 u8 rate_flag = info->control.rates[0].flags;
678
679 /* Common Settings */
680 tcb_desc->rts_stbc = false;
681 tcb_desc->cts_enable = false;
682 tcb_desc->rts_sc = 0;
683 tcb_desc->rts_bw = false;
684 tcb_desc->rts_use_shortpreamble = false;
685 tcb_desc->rts_use_shortgi = false;
686
687 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
688 /* Use CTS-to-SELF in protection mode. */
689 tcb_desc->rts_enable = true;
690 tcb_desc->cts_enable = true;
691 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
692 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
693 /* Use RTS-CTS in protection mode. */
694 tcb_desc->rts_enable = true;
695 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
696 }
697 }
698
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)699 u8 rtl_mrate_idx_to_arfr_id(
700 struct ieee80211_hw *hw, u8 rate_index,
701 enum wireless_mode wirelessmode)
702 {
703 struct rtl_priv *rtlpriv = rtl_priv(hw);
704 struct rtl_phy *rtlphy = &rtlpriv->phy;
705 u8 ret = 0;
706
707 switch (rate_index) {
708 case RATR_INX_WIRELESS_NGB:
709 if (rtlphy->rf_type == RF_1T1R)
710 ret = RATEID_IDX_BGN_40M_1SS;
711 else
712 ret = RATEID_IDX_BGN_40M_2SS;
713 ; break;
714 case RATR_INX_WIRELESS_N:
715 case RATR_INX_WIRELESS_NG:
716 if (rtlphy->rf_type == RF_1T1R)
717 ret = RATEID_IDX_GN_N1SS;
718 else
719 ret = RATEID_IDX_GN_N2SS;
720 ; break;
721 case RATR_INX_WIRELESS_NB:
722 if (rtlphy->rf_type == RF_1T1R)
723 ret = RATEID_IDX_BGN_20M_1SS_BN;
724 else
725 ret = RATEID_IDX_BGN_20M_2SS_BN;
726 ; break;
727 case RATR_INX_WIRELESS_GB:
728 ret = RATEID_IDX_BG;
729 break;
730 case RATR_INX_WIRELESS_G:
731 ret = RATEID_IDX_G;
732 break;
733 case RATR_INX_WIRELESS_B:
734 ret = RATEID_IDX_B;
735 break;
736 case RATR_INX_WIRELESS_MC:
737 if ((wirelessmode == WIRELESS_MODE_B) ||
738 (wirelessmode == WIRELESS_MODE_G) ||
739 (wirelessmode == WIRELESS_MODE_N_24G) ||
740 (wirelessmode == WIRELESS_MODE_AC_24G))
741 ret = RATEID_IDX_BG;
742 else
743 ret = RATEID_IDX_G;
744 break;
745 case RATR_INX_WIRELESS_AC_5N:
746 if (rtlphy->rf_type == RF_1T1R)
747 ret = RATEID_IDX_VHT_1SS;
748 else
749 ret = RATEID_IDX_VHT_2SS;
750 break;
751 case RATR_INX_WIRELESS_AC_24N:
752 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
753 if (rtlphy->rf_type == RF_1T1R)
754 ret = RATEID_IDX_VHT_1SS;
755 else
756 ret = RATEID_IDX_VHT_2SS;
757 } else {
758 if (rtlphy->rf_type == RF_1T1R)
759 ret = RATEID_IDX_MIX1;
760 else
761 ret = RATEID_IDX_MIX2;
762 }
763 break;
764 default:
765 ret = RATEID_IDX_BGN_40M_2SS;
766 break;
767 }
768 return ret;
769 }
770
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)771 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
772 struct ieee80211_sta *sta,
773 struct rtl_tcb_desc *tcb_desc)
774 {
775 #define SET_RATE_ID(rate_id) \
776 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
777 rtl_mrate_idx_to_arfr_id(hw, rate_id, \
778 (sta_entry ? sta_entry->wireless_mode : \
779 WIRELESS_MODE_G)) : \
780 rate_id)
781
782 struct rtl_priv *rtlpriv = rtl_priv(hw);
783 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
784 struct rtl_sta_info *sta_entry = NULL;
785 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
786
787 if (sta) {
788 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
789 ratr_index = sta_entry->ratr_index;
790 }
791 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
792 if (mac->opmode == NL80211_IFTYPE_STATION) {
793 tcb_desc->ratr_index = 0;
794 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
795 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
796 if (tcb_desc->multicast || tcb_desc->broadcast) {
797 tcb_desc->hw_rate =
798 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
799 tcb_desc->use_driver_rate = 1;
800 tcb_desc->ratr_index =
801 SET_RATE_ID(RATR_INX_WIRELESS_MC);
802 } else {
803 tcb_desc->ratr_index = ratr_index;
804 }
805 } else if (mac->opmode == NL80211_IFTYPE_AP) {
806 tcb_desc->ratr_index = ratr_index;
807 }
808 }
809
810 if (rtlpriv->dm.useramask) {
811 tcb_desc->ratr_index = ratr_index;
812 /* TODO we will differentiate adhoc and station future */
813 if (mac->opmode == NL80211_IFTYPE_STATION ||
814 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
815 tcb_desc->mac_id = 0;
816
817 if (sta &&
818 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
819 ; /* use sta_entry->ratr_index */
820 else if (mac->mode == WIRELESS_MODE_AC_5G)
821 tcb_desc->ratr_index =
822 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
823 else if (mac->mode == WIRELESS_MODE_AC_24G)
824 tcb_desc->ratr_index =
825 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
826 else if (mac->mode == WIRELESS_MODE_N_24G)
827 tcb_desc->ratr_index =
828 SET_RATE_ID(RATR_INX_WIRELESS_NGB);
829 else if (mac->mode == WIRELESS_MODE_N_5G)
830 tcb_desc->ratr_index =
831 SET_RATE_ID(RATR_INX_WIRELESS_NG);
832 else if (mac->mode & WIRELESS_MODE_G)
833 tcb_desc->ratr_index =
834 SET_RATE_ID(RATR_INX_WIRELESS_GB);
835 else if (mac->mode & WIRELESS_MODE_B)
836 tcb_desc->ratr_index =
837 SET_RATE_ID(RATR_INX_WIRELESS_B);
838 else if (mac->mode & WIRELESS_MODE_A)
839 tcb_desc->ratr_index =
840 SET_RATE_ID(RATR_INX_WIRELESS_G);
841
842 } else if (mac->opmode == NL80211_IFTYPE_AP ||
843 mac->opmode == NL80211_IFTYPE_ADHOC) {
844 if (sta) {
845 if (sta->aid > 0)
846 tcb_desc->mac_id = sta->aid + 1;
847 else
848 tcb_desc->mac_id = 1;
849 } else {
850 tcb_desc->mac_id = 0;
851 }
852 }
853 }
854 #undef SET_RATE_ID
855 }
856
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)857 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
858 struct ieee80211_sta *sta,
859 struct rtl_tcb_desc *tcb_desc)
860 {
861 struct rtl_priv *rtlpriv = rtl_priv(hw);
862 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
863
864 tcb_desc->packet_bw = false;
865 if (!sta)
866 return;
867 if (mac->opmode == NL80211_IFTYPE_AP ||
868 mac->opmode == NL80211_IFTYPE_ADHOC ||
869 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
870 if (!(sta->ht_cap.ht_supported) ||
871 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
872 return;
873 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
874 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
875 return;
876 }
877 if (tcb_desc->multicast || tcb_desc->broadcast)
878 return;
879
880 /*use legency rate, shall use 20MHz */
881 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
882 return;
883
884 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
885
886 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
887 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE ||
888 (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT)) {
889 if (mac->opmode == NL80211_IFTYPE_AP ||
890 mac->opmode == NL80211_IFTYPE_ADHOC ||
891 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
892 if (!(sta->vht_cap.vht_supported))
893 return;
894 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
895 if (!mac->bw_80 ||
896 !(sta->vht_cap.vht_supported))
897 return;
898 }
899 if (tcb_desc->hw_rate <=
900 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
901 return;
902 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
903 }
904 }
905
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)906 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
907 struct ieee80211_sta *sta)
908 {
909 struct rtl_priv *rtlpriv = rtl_priv(hw);
910 struct rtl_phy *rtlphy = &rtlpriv->phy;
911 u8 hw_rate;
912 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
913
914 if ((get_rf_type(rtlphy) == RF_2T2R) &&
915 (tx_mcs_map & 0x000c) != 0x000c) {
916 if ((tx_mcs_map & 0x000c) >> 2 ==
917 IEEE80211_VHT_MCS_SUPPORT_0_7)
918 hw_rate =
919 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
920 else if ((tx_mcs_map & 0x000c) >> 2 ==
921 IEEE80211_VHT_MCS_SUPPORT_0_8)
922 hw_rate =
923 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
924 else
925 hw_rate =
926 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
927 } else {
928 if ((tx_mcs_map & 0x0003) ==
929 IEEE80211_VHT_MCS_SUPPORT_0_7)
930 hw_rate =
931 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
932 else if ((tx_mcs_map & 0x0003) ==
933 IEEE80211_VHT_MCS_SUPPORT_0_8)
934 hw_rate =
935 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
936 else
937 hw_rate =
938 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
939 }
940
941 return hw_rate;
942 }
943
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)944 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
945 struct ieee80211_sta *sta)
946 {
947 struct rtl_priv *rtlpriv = rtl_priv(hw);
948 struct rtl_phy *rtlphy = &rtlpriv->phy;
949 u8 hw_rate;
950
951 if ((get_rf_type(rtlphy) == RF_2T2R) &&
952 (sta->ht_cap.mcs.rx_mask[1] != 0))
953 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
954 else
955 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
956
957 return hw_rate;
958 }
959
960 /* mac80211's rate_idx is like this:
961 *
962 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
963 *
964 * B/G rate:
965 * (rx_status->flag & RX_FLAG_HT) = 0,
966 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
967 *
968 * N rate:
969 * (rx_status->flag & RX_FLAG_HT) = 1,
970 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
971 *
972 * 5G band:rx_status->band == NL80211_BAND_5GHZ
973 * A rate:
974 * (rx_status->flag & RX_FLAG_HT) = 0,
975 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
976 *
977 * N rate:
978 * (rx_status->flag & RX_FLAG_HT) = 1,
979 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
980 *
981 * VHT rates:
982 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
983 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
984 */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)985 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
986 u8 desc_rate)
987 {
988 int rate_idx;
989
990 if (isvht) {
991 switch (desc_rate) {
992 case DESC_RATEVHT1SS_MCS0:
993 rate_idx = 0;
994 break;
995 case DESC_RATEVHT1SS_MCS1:
996 rate_idx = 1;
997 break;
998 case DESC_RATEVHT1SS_MCS2:
999 rate_idx = 2;
1000 break;
1001 case DESC_RATEVHT1SS_MCS3:
1002 rate_idx = 3;
1003 break;
1004 case DESC_RATEVHT1SS_MCS4:
1005 rate_idx = 4;
1006 break;
1007 case DESC_RATEVHT1SS_MCS5:
1008 rate_idx = 5;
1009 break;
1010 case DESC_RATEVHT1SS_MCS6:
1011 rate_idx = 6;
1012 break;
1013 case DESC_RATEVHT1SS_MCS7:
1014 rate_idx = 7;
1015 break;
1016 case DESC_RATEVHT1SS_MCS8:
1017 rate_idx = 8;
1018 break;
1019 case DESC_RATEVHT1SS_MCS9:
1020 rate_idx = 9;
1021 break;
1022 case DESC_RATEVHT2SS_MCS0:
1023 rate_idx = 0;
1024 break;
1025 case DESC_RATEVHT2SS_MCS1:
1026 rate_idx = 1;
1027 break;
1028 case DESC_RATEVHT2SS_MCS2:
1029 rate_idx = 2;
1030 break;
1031 case DESC_RATEVHT2SS_MCS3:
1032 rate_idx = 3;
1033 break;
1034 case DESC_RATEVHT2SS_MCS4:
1035 rate_idx = 4;
1036 break;
1037 case DESC_RATEVHT2SS_MCS5:
1038 rate_idx = 5;
1039 break;
1040 case DESC_RATEVHT2SS_MCS6:
1041 rate_idx = 6;
1042 break;
1043 case DESC_RATEVHT2SS_MCS7:
1044 rate_idx = 7;
1045 break;
1046 case DESC_RATEVHT2SS_MCS8:
1047 rate_idx = 8;
1048 break;
1049 case DESC_RATEVHT2SS_MCS9:
1050 rate_idx = 9;
1051 break;
1052 default:
1053 rate_idx = 0;
1054 break;
1055 }
1056 return rate_idx;
1057 }
1058 if (!isht) {
1059 if (hw->conf.chandef.chan->band == NL80211_BAND_2GHZ) {
1060 switch (desc_rate) {
1061 case DESC_RATE1M:
1062 rate_idx = 0;
1063 break;
1064 case DESC_RATE2M:
1065 rate_idx = 1;
1066 break;
1067 case DESC_RATE5_5M:
1068 rate_idx = 2;
1069 break;
1070 case DESC_RATE11M:
1071 rate_idx = 3;
1072 break;
1073 case DESC_RATE6M:
1074 rate_idx = 4;
1075 break;
1076 case DESC_RATE9M:
1077 rate_idx = 5;
1078 break;
1079 case DESC_RATE12M:
1080 rate_idx = 6;
1081 break;
1082 case DESC_RATE18M:
1083 rate_idx = 7;
1084 break;
1085 case DESC_RATE24M:
1086 rate_idx = 8;
1087 break;
1088 case DESC_RATE36M:
1089 rate_idx = 9;
1090 break;
1091 case DESC_RATE48M:
1092 rate_idx = 10;
1093 break;
1094 case DESC_RATE54M:
1095 rate_idx = 11;
1096 break;
1097 default:
1098 rate_idx = 0;
1099 break;
1100 }
1101 } else {
1102 switch (desc_rate) {
1103 case DESC_RATE6M:
1104 rate_idx = 0;
1105 break;
1106 case DESC_RATE9M:
1107 rate_idx = 1;
1108 break;
1109 case DESC_RATE12M:
1110 rate_idx = 2;
1111 break;
1112 case DESC_RATE18M:
1113 rate_idx = 3;
1114 break;
1115 case DESC_RATE24M:
1116 rate_idx = 4;
1117 break;
1118 case DESC_RATE36M:
1119 rate_idx = 5;
1120 break;
1121 case DESC_RATE48M:
1122 rate_idx = 6;
1123 break;
1124 case DESC_RATE54M:
1125 rate_idx = 7;
1126 break;
1127 default:
1128 rate_idx = 0;
1129 break;
1130 }
1131 }
1132 } else {
1133 switch (desc_rate) {
1134 case DESC_RATEMCS0:
1135 rate_idx = 0;
1136 break;
1137 case DESC_RATEMCS1:
1138 rate_idx = 1;
1139 break;
1140 case DESC_RATEMCS2:
1141 rate_idx = 2;
1142 break;
1143 case DESC_RATEMCS3:
1144 rate_idx = 3;
1145 break;
1146 case DESC_RATEMCS4:
1147 rate_idx = 4;
1148 break;
1149 case DESC_RATEMCS5:
1150 rate_idx = 5;
1151 break;
1152 case DESC_RATEMCS6:
1153 rate_idx = 6;
1154 break;
1155 case DESC_RATEMCS7:
1156 rate_idx = 7;
1157 break;
1158 case DESC_RATEMCS8:
1159 rate_idx = 8;
1160 break;
1161 case DESC_RATEMCS9:
1162 rate_idx = 9;
1163 break;
1164 case DESC_RATEMCS10:
1165 rate_idx = 10;
1166 break;
1167 case DESC_RATEMCS11:
1168 rate_idx = 11;
1169 break;
1170 case DESC_RATEMCS12:
1171 rate_idx = 12;
1172 break;
1173 case DESC_RATEMCS13:
1174 rate_idx = 13;
1175 break;
1176 case DESC_RATEMCS14:
1177 rate_idx = 14;
1178 break;
1179 case DESC_RATEMCS15:
1180 rate_idx = 15;
1181 break;
1182 default:
1183 rate_idx = 0;
1184 break;
1185 }
1186 }
1187 return rate_idx;
1188 }
1189
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1190 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1191 struct ieee80211_tx_info *info)
1192 {
1193 struct rtl_priv *rtlpriv = rtl_priv(hw);
1194 struct ieee80211_tx_rate *r = &info->status.rates[0];
1195 struct ieee80211_rate *txrate;
1196 u8 hw_value = 0x0;
1197
1198 if (r->flags & IEEE80211_TX_RC_MCS) {
1199 /* HT MCS0-15 */
1200 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1201 r->idx;
1202 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1203 /* VHT MCS0-9, NSS */
1204 if (ieee80211_rate_get_vht_nss(r) == 2)
1205 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1206 else
1207 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1208
1209 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1210 } else {
1211 /* legacy */
1212 txrate = ieee80211_get_tx_rate(hw, info);
1213
1214 if (txrate)
1215 hw_value = txrate->hw_value;
1216 }
1217
1218 /* check 5G band */
1219 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1220 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1221 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1222
1223 return hw_value;
1224 }
1225
rtl_get_tcb_desc(struct ieee80211_hw * hw,struct ieee80211_tx_info * info,struct ieee80211_sta * sta,struct sk_buff * skb,struct rtl_tcb_desc * tcb_desc)1226 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1227 struct ieee80211_tx_info *info,
1228 struct ieee80211_sta *sta,
1229 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1230 {
1231 #define SET_RATE_ID(rate_id) \
1232 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
1233 rtl_mrate_idx_to_arfr_id(hw, rate_id, \
1234 (sta_entry ? sta_entry->wireless_mode : \
1235 WIRELESS_MODE_G)) : \
1236 rate_id)
1237
1238 struct rtl_priv *rtlpriv = rtl_priv(hw);
1239 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1240 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1241 struct rtl_sta_info *sta_entry =
1242 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1243
1244 __le16 fc = rtl_get_fc(skb);
1245
1246 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1247
1248 if (rtl_is_tx_report_skb(hw, skb))
1249 tcb_desc->use_spe_rpt = 1;
1250
1251 if (ieee80211_is_data(fc)) {
1252 /*
1253 *we set data rate INX 0
1254 *in rtl_rc.c if skb is special data or
1255 *mgt which need low data rate.
1256 */
1257
1258 /*
1259 *So tcb_desc->hw_rate is just used for
1260 *special data and mgt frames
1261 */
1262 if (info->control.rates[0].idx == 0 ||
1263 ieee80211_is_nullfunc(fc)) {
1264 tcb_desc->use_driver_rate = true;
1265 tcb_desc->ratr_index =
1266 SET_RATE_ID(RATR_INX_WIRELESS_MC);
1267
1268 tcb_desc->disable_ratefallback = 1;
1269 } else {
1270 /* because hw will never use hw_rate
1271 * when tcb_desc->use_driver_rate = false
1272 * so we never set highest N rate here,
1273 * and N rate will all be controlled by FW
1274 * when tcb_desc->use_driver_rate = false
1275 */
1276 if (sta && sta->vht_cap.vht_supported) {
1277 tcb_desc->hw_rate =
1278 _rtl_get_vht_highest_n_rate(hw, sta);
1279 } else {
1280 if (sta && (sta->ht_cap.ht_supported)) {
1281 tcb_desc->hw_rate =
1282 _rtl_get_highest_n_rate(hw, sta);
1283 } else {
1284 if (rtlmac->mode == WIRELESS_MODE_B) {
1285 tcb_desc->hw_rate =
1286 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1287 } else {
1288 tcb_desc->hw_rate =
1289 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1290 }
1291 }
1292 }
1293 }
1294
1295 if (is_multicast_ether_addr(hdr->addr1))
1296 tcb_desc->multicast = 1;
1297 else if (is_broadcast_ether_addr(hdr->addr1))
1298 tcb_desc->broadcast = 1;
1299
1300 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1301 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1302 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1303 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1304 _rtl_query_protection_mode(hw, tcb_desc, info);
1305 } else {
1306 tcb_desc->use_driver_rate = true;
1307 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1308 tcb_desc->disable_ratefallback = 1;
1309 tcb_desc->mac_id = 0;
1310 tcb_desc->packet_bw = false;
1311 }
1312 #undef SET_RATE_ID
1313 }
1314
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1315 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1316 {
1317 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1318 struct rtl_priv *rtlpriv = rtl_priv(hw);
1319 __le16 fc = rtl_get_fc(skb);
1320
1321 if (rtlpriv->dm.supp_phymode_switch &&
1322 mac->link_state < MAC80211_LINKED &&
1323 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1324 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1325 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1326 }
1327 if (ieee80211_is_auth(fc)) {
1328 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1329
1330 mac->link_state = MAC80211_LINKING;
1331 /* Dul mac */
1332 rtlpriv->phy.need_iqk = true;
1333 }
1334 return true;
1335 }
1336
1337 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1338 u8 *bssid, u16 tid);
1339
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1340 static void process_agg_start(struct ieee80211_hw *hw,
1341 struct ieee80211_hdr *hdr, u16 tid)
1342 {
1343 struct rtl_priv *rtlpriv = rtl_priv(hw);
1344 struct ieee80211_rx_status rx_status = { 0 };
1345 struct sk_buff *skb_delba = NULL;
1346
1347 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1348 if (skb_delba) {
1349 rx_status.freq = hw->conf.chandef.chan->center_freq;
1350 rx_status.band = hw->conf.chandef.chan->band;
1351 rx_status.flag |= RX_FLAG_DECRYPTED;
1352 rx_status.flag |= RX_FLAG_MACTIME_START;
1353 rx_status.rate_idx = 0;
1354 rx_status.signal = 50 + 10;
1355 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1356 &rx_status, sizeof(rx_status));
1357 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1358 "fake del\n",
1359 skb_delba->data,
1360 skb_delba->len);
1361 ieee80211_rx_irqsafe(hw, skb_delba);
1362 }
1363 }
1364
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1365 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1366 {
1367 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1368 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1369 struct rtl_priv *rtlpriv = rtl_priv(hw);
1370 __le16 fc = rtl_get_fc(skb);
1371 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1372 u8 category;
1373
1374 if (!ieee80211_is_action(fc))
1375 return true;
1376
1377 category = *act;
1378 act++;
1379 switch (category) {
1380 case ACT_CAT_BA:
1381 switch (*act) {
1382 case ACT_ADDBAREQ:
1383 if (mac->act_scanning)
1384 return false;
1385
1386 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1387 "%s ACT_ADDBAREQ From :%pM\n",
1388 is_tx ? "Tx" : "Rx", hdr->addr2);
1389 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1390 skb->data, skb->len);
1391 if (!is_tx) {
1392 struct ieee80211_sta *sta = NULL;
1393 struct rtl_sta_info *sta_entry = NULL;
1394 struct rtl_tid_data *tid_data;
1395 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1396 u16 capab = 0, tid = 0;
1397
1398 rcu_read_lock();
1399 sta = rtl_find_sta(hw, hdr->addr3);
1400 if (!sta) {
1401 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1402 DBG_DMESG, "sta is NULL\n");
1403 rcu_read_unlock();
1404 return true;
1405 }
1406
1407 sta_entry =
1408 (struct rtl_sta_info *)sta->drv_priv;
1409 if (!sta_entry) {
1410 rcu_read_unlock();
1411 return true;
1412 }
1413 capab =
1414 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1415 tid = (capab &
1416 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1417 if (tid >= MAX_TID_COUNT) {
1418 rcu_read_unlock();
1419 return true;
1420 }
1421 tid_data = &sta_entry->tids[tid];
1422 if (tid_data->agg.rx_agg_state ==
1423 RTL_RX_AGG_START)
1424 process_agg_start(hw, hdr, tid);
1425 rcu_read_unlock();
1426 }
1427 break;
1428 case ACT_ADDBARSP:
1429 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1430 "%s ACT_ADDBARSP From :%pM\n",
1431 is_tx ? "Tx" : "Rx", hdr->addr2);
1432 break;
1433 case ACT_DELBA:
1434 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1435 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1436 break;
1437 }
1438 break;
1439 default:
1440 break;
1441 }
1442
1443 return true;
1444 }
1445
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1446 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1447 int type)
1448 {
1449 struct ieee80211_hw *hw = rtlpriv->hw;
1450
1451 rtlpriv->ra.is_special_data = true;
1452 if (rtlpriv->cfg->ops->get_btc_status())
1453 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1454 rtlpriv, type);
1455 rtl_lps_leave(hw);
1456 ppsc->last_delaylps_stamp_jiffies = jiffies;
1457 }
1458
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1459 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1460 struct sk_buff *skb, bool is_enc)
1461 {
1462 struct rtl_priv *rtlpriv = rtl_priv(hw);
1463 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1464 u8 encrypt_header_len = 0;
1465 u8 offset;
1466
1467 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1468 case WEP40_ENCRYPTION:
1469 case WEP104_ENCRYPTION:
1470 encrypt_header_len = 4;/*WEP_IV_LEN*/
1471 break;
1472 case TKIP_ENCRYPTION:
1473 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1474 break;
1475 case AESCCMP_ENCRYPTION:
1476 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1477 break;
1478 default:
1479 break;
1480 }
1481
1482 offset = mac_hdr_len + SNAP_SIZE;
1483 if (is_enc)
1484 offset += encrypt_header_len;
1485
1486 return skb->data + offset;
1487 }
1488
1489 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1490 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1491 bool is_enc)
1492 {
1493 struct rtl_priv *rtlpriv = rtl_priv(hw);
1494 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1495 __le16 fc = rtl_get_fc(skb);
1496 u16 ether_type;
1497 const u8 *ether_type_ptr;
1498 const struct iphdr *ip;
1499
1500 if (!ieee80211_is_data(fc))
1501 goto end;
1502
1503 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1504 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1505
1506 if (ether_type == ETH_P_IP) {
1507 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1508 PROTOC_TYPE_SIZE);
1509 if (ip->protocol == IPPROTO_UDP) {
1510 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1511 (ip->ihl << 2));
1512 if (((((u8 *)udp)[1] == 68) &&
1513 (((u8 *)udp)[3] == 67)) ||
1514 ((((u8 *)udp)[1] == 67) &&
1515 (((u8 *)udp)[3] == 68))) {
1516 /* 68 : UDP BOOTP client
1517 * 67 : UDP BOOTP server
1518 */
1519 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1520 DBG_DMESG, "dhcp %s !!\n",
1521 (is_tx) ? "Tx" : "Rx");
1522
1523 if (is_tx)
1524 setup_special_tx(rtlpriv, ppsc,
1525 PACKET_DHCP);
1526
1527 return true;
1528 }
1529 }
1530 } else if (ether_type == ETH_P_ARP) {
1531 if (is_tx)
1532 setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1533
1534 return true;
1535 } else if (ether_type == ETH_P_PAE) {
1536 /* EAPOL is seen as in-4way */
1537 rtlpriv->btcoexist.btc_info.in_4way = true;
1538 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1539 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1540
1541 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1542 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1543
1544 if (is_tx) {
1545 rtlpriv->ra.is_special_data = true;
1546 rtl_lps_leave(hw);
1547 ppsc->last_delaylps_stamp_jiffies = jiffies;
1548
1549 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1550 }
1551
1552 return true;
1553 } else if (ether_type == ETH_P_IPV6) {
1554 /* TODO: Handle any IPv6 cases that need special handling.
1555 * For now, always return false
1556 */
1557 goto end;
1558 }
1559
1560 end:
1561 rtlpriv->ra.is_special_data = false;
1562 return false;
1563 }
1564
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1565 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1566 {
1567 u16 ether_type;
1568 const u8 *ether_type_ptr;
1569
1570 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1571 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1572
1573 /* EAPOL */
1574 if (ether_type == ETH_P_PAE)
1575 return true;
1576
1577 return false;
1578 }
1579
rtl_get_tx_report_sn(struct ieee80211_hw * hw)1580 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw)
1581 {
1582 struct rtl_priv *rtlpriv = rtl_priv(hw);
1583 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1584 u16 sn;
1585
1586 /*
1587 * SW_DEFINE[11:8] are reserved (driver fills zeros)
1588 * SW_DEFINE[7:2] are used by driver
1589 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1590 */
1591 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1592
1593 tx_report->last_sent_sn = sn;
1594 tx_report->last_sent_time = jiffies;
1595
1596 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1597 "Send TX-Report sn=0x%X\n", sn);
1598
1599 return sn;
1600 }
1601
rtl_get_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw)1602 void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1603 struct ieee80211_hw *hw)
1604 {
1605 if (ptcb_desc->use_spe_rpt) {
1606 u16 sn = rtl_get_tx_report_sn(hw);
1607
1608 SET_TX_DESC_SPE_RPT(pdesc, 1);
1609 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1610 }
1611 }
1612
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1613 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1614 {
1615 struct rtl_priv *rtlpriv = rtl_priv(hw);
1616 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1617 u16 sn;
1618 u8 st, retry;
1619
1620 if (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_FW_C2H) {
1621 sn = tmp_buf[6];
1622 st = tmp_buf[7] & 0xC0;
1623 retry = tmp_buf[8] & 0x3F;
1624 } else {
1625 sn = ((tmp_buf[7] & 0x0F) << 8) | tmp_buf[6];
1626 st = tmp_buf[0] & 0xC0;
1627 retry = tmp_buf[2] & 0x3F;
1628 }
1629
1630 tx_report->last_recv_sn = sn;
1631
1632 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1633 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1634 st, sn, retry);
1635 }
1636
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1637 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1638 {
1639 struct rtl_priv *rtlpriv = rtl_priv(hw);
1640 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1641
1642 if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1643 return true;
1644
1645 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1646 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1647 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1648 tx_report->last_sent_sn, tx_report->last_recv_sn);
1649 return true; /* 3 sec. (timeout) seen as acked */
1650 }
1651
1652 return false;
1653 }
1654
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1655 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1656 {
1657 struct rtl_priv *rtlpriv = rtl_priv(hw);
1658 int i;
1659
1660 for (i = 0; i < wait_ms; i++) {
1661 if (rtl_check_tx_report_acked(hw))
1662 break;
1663 usleep_range(1000, 2000);
1664 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1665 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1666 }
1667 }
1668
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1669 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1670 struct ieee80211_vif *vif,
1671 enum wireless_mode wirelessmode,
1672 struct ieee80211_tx_queue_params *param)
1673 {
1674 u32 reg = 0;
1675 u8 sifstime = 10;
1676 u8 slottime = 20;
1677
1678 /* AIFS = AIFSN * slot time + SIFS */
1679 switch (wirelessmode) {
1680 case WIRELESS_MODE_A:
1681 case WIRELESS_MODE_N_24G:
1682 case WIRELESS_MODE_N_5G:
1683 case WIRELESS_MODE_AC_5G:
1684 case WIRELESS_MODE_AC_24G:
1685 sifstime = 16;
1686 slottime = 9;
1687 break;
1688 case WIRELESS_MODE_G:
1689 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1690 break;
1691 default:
1692 break;
1693 }
1694
1695 reg |= (param->txop & 0x7FF) << 16;
1696 reg |= (fls(param->cw_max) & 0xF) << 12;
1697 reg |= (fls(param->cw_min) & 0xF) << 8;
1698 reg |= (param->aifs & 0x0F) * slottime + sifstime;
1699
1700 return reg;
1701 }
1702
1703 /*********************************************************
1704 *
1705 * functions called by core.c
1706 *
1707 *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1708 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1709 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1710 {
1711 struct rtl_priv *rtlpriv = rtl_priv(hw);
1712 struct rtl_tid_data *tid_data;
1713 struct rtl_sta_info *sta_entry = NULL;
1714
1715 if (!sta)
1716 return -EINVAL;
1717
1718 if (unlikely(tid >= MAX_TID_COUNT))
1719 return -EINVAL;
1720
1721 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1722 if (!sta_entry)
1723 return -ENXIO;
1724 tid_data = &sta_entry->tids[tid];
1725
1726 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1727 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1728 tid_data->seq_number);
1729
1730 *ssn = tid_data->seq_number;
1731 tid_data->agg.agg_state = RTL_AGG_START;
1732
1733 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1734 return 0;
1735 }
1736
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1737 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1738 struct ieee80211_sta *sta, u16 tid)
1739 {
1740 struct rtl_priv *rtlpriv = rtl_priv(hw);
1741 struct rtl_tid_data *tid_data;
1742 struct rtl_sta_info *sta_entry = NULL;
1743
1744 if (!sta)
1745 return -EINVAL;
1746
1747 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1748 "on ra = %pM tid = %d\n", sta->addr, tid);
1749
1750 if (unlikely(tid >= MAX_TID_COUNT))
1751 return -EINVAL;
1752
1753 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1754 tid_data = &sta_entry->tids[tid];
1755 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1756
1757 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1758 return 0;
1759 }
1760
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1761 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1762 struct ieee80211_sta *sta, u16 tid)
1763 {
1764 struct rtl_priv *rtlpriv = rtl_priv(hw);
1765 struct rtl_tid_data *tid_data;
1766 struct rtl_sta_info *sta_entry = NULL;
1767 u8 reject_agg;
1768
1769 if (!sta)
1770 return -EINVAL;
1771
1772 if (unlikely(tid >= MAX_TID_COUNT))
1773 return -EINVAL;
1774
1775 if (rtlpriv->cfg->ops->get_btc_status()) {
1776 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1777 &reject_agg,
1778 NULL, NULL);
1779 if (reject_agg)
1780 return -EINVAL;
1781 }
1782
1783 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1784 if (!sta_entry)
1785 return -ENXIO;
1786 tid_data = &sta_entry->tids[tid];
1787
1788 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1789 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1790 tid_data->seq_number);
1791
1792 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1793 return 0;
1794 }
1795
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1796 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1797 struct ieee80211_sta *sta, u16 tid)
1798 {
1799 struct rtl_priv *rtlpriv = rtl_priv(hw);
1800 struct rtl_sta_info *sta_entry = NULL;
1801
1802 if (!sta)
1803 return -EINVAL;
1804
1805 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1806 "on ra = %pM tid = %d\n", sta->addr, tid);
1807
1808 if (unlikely(tid >= MAX_TID_COUNT))
1809 return -EINVAL;
1810
1811 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1812 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1813
1814 return 0;
1815 }
1816
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1817 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1818 struct ieee80211_sta *sta, u16 tid)
1819 {
1820 struct rtl_priv *rtlpriv = rtl_priv(hw);
1821 struct rtl_sta_info *sta_entry = NULL;
1822
1823 if (!sta)
1824 return -EINVAL;
1825
1826 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1827 "on ra = %pM tid = %d\n", sta->addr, tid);
1828
1829 if (unlikely(tid >= MAX_TID_COUNT))
1830 return -EINVAL;
1831
1832 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1833 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1834
1835 return 0;
1836 }
1837
rtl_rx_ampdu_apply(struct rtl_priv * rtlpriv)1838 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1839 {
1840 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1841 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1842
1843 if (rtlpriv->cfg->ops->get_btc_status())
1844 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1845 &ctrl_agg_size, &agg_size);
1846
1847 RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1848 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1849 reject_agg, ctrl_agg_size, agg_size);
1850
1851 rtlpriv->hw->max_rx_aggregation_subframes =
1852 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF);
1853 }
1854
1855 /*********************************************************
1856 *
1857 * wq & timer callback functions
1858 *
1859 *********************************************************/
1860 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1861 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1862 {
1863 struct rtl_priv *rtlpriv = rtl_priv(hw);
1864 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1865
1866 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1867 return;
1868
1869 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1870 return;
1871
1872 /* check if this really is a beacon */
1873 if (!ieee80211_is_beacon(hdr->frame_control) &&
1874 !ieee80211_is_probe_resp(hdr->frame_control))
1875 return;
1876
1877 /* min. beacon length + FCS_LEN */
1878 if (skb->len <= 40 + FCS_LEN)
1879 return;
1880
1881 /* and only beacons from the associated BSSID, please */
1882 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1883 return;
1884
1885 rtlpriv->link_info.bcn_rx_inperiod++;
1886 }
1887
rtl_free_entries_from_scan_list(struct ieee80211_hw * hw)1888 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1889 {
1890 struct rtl_priv *rtlpriv = rtl_priv(hw);
1891 struct rtl_bssid_entry *entry, *next;
1892
1893 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1894 list_del(&entry->list);
1895 kfree(entry);
1896 rtlpriv->scan_list.num--;
1897 }
1898 }
1899
rtl_scan_list_expire(struct ieee80211_hw * hw)1900 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1901 {
1902 struct rtl_priv *rtlpriv = rtl_priv(hw);
1903 struct rtl_bssid_entry *entry, *next;
1904 unsigned long flags;
1905
1906 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1907
1908 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1909 /* 180 seconds */
1910 if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1911 continue;
1912
1913 list_del(&entry->list);
1914 rtlpriv->scan_list.num--;
1915
1916 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1917 "BSSID=%pM is expire in scan list (total=%d)\n",
1918 entry->bssid, rtlpriv->scan_list.num);
1919 kfree(entry);
1920 }
1921
1922 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1923
1924 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1925 }
1926
rtl_collect_scan_list(struct ieee80211_hw * hw,struct sk_buff * skb)1927 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1928 {
1929 struct rtl_priv *rtlpriv = rtl_priv(hw);
1930 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1931 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1932 unsigned long flags;
1933
1934 struct rtl_bssid_entry *entry;
1935 bool entry_found = false;
1936
1937 /* check if it is scanning */
1938 if (!mac->act_scanning)
1939 return;
1940
1941 /* check if this really is a beacon */
1942 if (!ieee80211_is_beacon(hdr->frame_control) &&
1943 !ieee80211_is_probe_resp(hdr->frame_control))
1944 return;
1945
1946 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1947
1948 list_for_each_entry(entry, &rtlpriv->scan_list.list, list) {
1949 if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) {
1950 list_del_init(&entry->list);
1951 entry_found = true;
1952 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1953 "Update BSSID=%pM to scan list (total=%d)\n",
1954 hdr->addr3, rtlpriv->scan_list.num);
1955 break;
1956 }
1957 }
1958
1959 if (!entry_found) {
1960 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
1961
1962 if (!entry)
1963 goto label_err;
1964
1965 memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
1966 rtlpriv->scan_list.num++;
1967
1968 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1969 "Add BSSID=%pM to scan list (total=%d)\n",
1970 hdr->addr3, rtlpriv->scan_list.num);
1971 }
1972
1973 entry->age = jiffies;
1974
1975 list_add_tail(&entry->list, &rtlpriv->scan_list.list);
1976
1977 label_err:
1978 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1979 }
1980
rtl_watchdog_wq_callback(void * data)1981 void rtl_watchdog_wq_callback(void *data)
1982 {
1983 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
1984 struct rtl_works,
1985 watchdog_wq);
1986 struct ieee80211_hw *hw = rtlworks->hw;
1987 struct rtl_priv *rtlpriv = rtl_priv(hw);
1988 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1989 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1990 bool busytraffic = false;
1991 bool tx_busy_traffic = false;
1992 bool rx_busy_traffic = false;
1993 bool higher_busytraffic = false;
1994 bool higher_busyrxtraffic = false;
1995 u8 idx, tid;
1996 u32 rx_cnt_inp4eriod = 0;
1997 u32 tx_cnt_inp4eriod = 0;
1998 u32 aver_rx_cnt_inperiod = 0;
1999 u32 aver_tx_cnt_inperiod = 0;
2000 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2001 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2002
2003 if (is_hal_stop(rtlhal))
2004 return;
2005
2006 /* <1> Determine if action frame is allowed */
2007 if (mac->link_state > MAC80211_NOLINK) {
2008 if (mac->cnt_after_linked < 20)
2009 mac->cnt_after_linked++;
2010 } else {
2011 mac->cnt_after_linked = 0;
2012 }
2013
2014 /* <2> to check if traffic busy, if
2015 * busytraffic we don't change channel
2016 */
2017 if (mac->link_state >= MAC80211_LINKED) {
2018 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2019 for (idx = 0; idx <= 2; idx++) {
2020 rtlpriv->link_info.num_rx_in4period[idx] =
2021 rtlpriv->link_info.num_rx_in4period[idx + 1];
2022 rtlpriv->link_info.num_tx_in4period[idx] =
2023 rtlpriv->link_info.num_tx_in4period[idx + 1];
2024 }
2025 rtlpriv->link_info.num_rx_in4period[3] =
2026 rtlpriv->link_info.num_rx_inperiod;
2027 rtlpriv->link_info.num_tx_in4period[3] =
2028 rtlpriv->link_info.num_tx_inperiod;
2029 for (idx = 0; idx <= 3; idx++) {
2030 rx_cnt_inp4eriod +=
2031 rtlpriv->link_info.num_rx_in4period[idx];
2032 tx_cnt_inp4eriod +=
2033 rtlpriv->link_info.num_tx_in4period[idx];
2034 }
2035 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2036 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2037
2038 /* (2) check traffic busy */
2039 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2040 busytraffic = true;
2041 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2042 rx_busy_traffic = true;
2043 else
2044 tx_busy_traffic = false;
2045 }
2046
2047 /* Higher Tx/Rx data. */
2048 if (aver_rx_cnt_inperiod > 4000 ||
2049 aver_tx_cnt_inperiod > 4000) {
2050 higher_busytraffic = true;
2051
2052 /* Extremely high Rx data. */
2053 if (aver_rx_cnt_inperiod > 5000)
2054 higher_busyrxtraffic = true;
2055 }
2056
2057 /* check every tid's tx traffic */
2058 for (tid = 0; tid <= 7; tid++) {
2059 for (idx = 0; idx <= 2; idx++)
2060 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2061 rtlpriv->link_info.tidtx_in4period[tid]
2062 [idx + 1];
2063 rtlpriv->link_info.tidtx_in4period[tid][3] =
2064 rtlpriv->link_info.tidtx_inperiod[tid];
2065
2066 for (idx = 0; idx <= 3; idx++)
2067 tidtx_inp4eriod[tid] +=
2068 rtlpriv->link_info.tidtx_in4period[tid][idx];
2069 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2070 if (aver_tidtx_inperiod[tid] > 5000)
2071 rtlpriv->link_info.higher_busytxtraffic[tid] =
2072 true;
2073 else
2074 rtlpriv->link_info.higher_busytxtraffic[tid] =
2075 false;
2076 }
2077
2078 /* PS is controlled by coex. */
2079 if (rtlpriv->cfg->ops->get_btc_status() &&
2080 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2081 goto label_lps_done;
2082
2083 if (((rtlpriv->link_info.num_rx_inperiod +
2084 rtlpriv->link_info.num_tx_inperiod) > 8) ||
2085 (rtlpriv->link_info.num_rx_inperiod > 2))
2086 rtl_lps_leave(hw);
2087 else
2088 rtl_lps_enter(hw);
2089
2090 label_lps_done:
2091 ;
2092 }
2093
2094 rtlpriv->link_info.num_rx_inperiod = 0;
2095 rtlpriv->link_info.num_tx_inperiod = 0;
2096 for (tid = 0; tid <= 7; tid++)
2097 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2098
2099 rtlpriv->link_info.busytraffic = busytraffic;
2100 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2101 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2102 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2103 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2104
2105 rtlpriv->stats.txbytesunicast_inperiod =
2106 rtlpriv->stats.txbytesunicast -
2107 rtlpriv->stats.txbytesunicast_last;
2108 rtlpriv->stats.rxbytesunicast_inperiod =
2109 rtlpriv->stats.rxbytesunicast -
2110 rtlpriv->stats.rxbytesunicast_last;
2111 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2112 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2113
2114 rtlpriv->stats.txbytesunicast_inperiod_tp =
2115 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2116 1024 / 1024);
2117 rtlpriv->stats.rxbytesunicast_inperiod_tp =
2118 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2119 1024 / 1024);
2120
2121 /* <3> DM */
2122 if (!rtlpriv->cfg->mod_params->disable_watchdog)
2123 rtlpriv->cfg->ops->dm_watchdog(hw);
2124
2125 /* <4> roaming */
2126 if (mac->link_state == MAC80211_LINKED &&
2127 mac->opmode == NL80211_IFTYPE_STATION) {
2128 if ((rtlpriv->link_info.bcn_rx_inperiod +
2129 rtlpriv->link_info.num_rx_inperiod) == 0) {
2130 rtlpriv->link_info.roam_times++;
2131 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2132 "AP off for %d s\n",
2133 (rtlpriv->link_info.roam_times * 2));
2134
2135 /* if we can't recv beacon for 10s,
2136 * we should reconnect this AP
2137 */
2138 if (rtlpriv->link_info.roam_times >= 5) {
2139 pr_err("AP off, try to reconnect now\n");
2140 rtlpriv->link_info.roam_times = 0;
2141 ieee80211_connection_loss(
2142 rtlpriv->mac80211.vif);
2143 }
2144 } else {
2145 rtlpriv->link_info.roam_times = 0;
2146 }
2147 }
2148
2149 if (rtlpriv->cfg->ops->get_btc_status())
2150 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2151
2152 if (rtlpriv->btcoexist.btc_info.in_4way) {
2153 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2154 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2155 rtlpriv->btcoexist.btc_info.in_4way = false;
2156 }
2157
2158 rtlpriv->link_info.bcn_rx_inperiod = 0;
2159
2160 /* <6> scan list */
2161 rtl_scan_list_expire(hw);
2162 }
2163
rtl_watch_dog_timer_callback(unsigned long data)2164 void rtl_watch_dog_timer_callback(unsigned long data)
2165 {
2166 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
2167 struct rtl_priv *rtlpriv = rtl_priv(hw);
2168
2169 queue_delayed_work(rtlpriv->works.rtl_wq,
2170 &rtlpriv->works.watchdog_wq, 0);
2171
2172 mod_timer(&rtlpriv->works.watchdog_timer,
2173 jiffies + MSECS(RTL_WATCH_DOG_TIME));
2174 }
2175
rtl_fwevt_wq_callback(void * data)2176 void rtl_fwevt_wq_callback(void *data)
2177 {
2178 struct rtl_works *rtlworks =
2179 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
2180 struct ieee80211_hw *hw = rtlworks->hw;
2181 struct rtl_priv *rtlpriv = rtl_priv(hw);
2182
2183 rtlpriv->cfg->ops->c2h_command_handle(hw);
2184 }
2185
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,u8 tag,u8 len,u8 * val)2186 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val)
2187 {
2188 struct rtl_priv *rtlpriv = rtl_priv(hw);
2189 unsigned long flags;
2190 struct rtl_c2hcmd *c2hcmd;
2191
2192 c2hcmd = kmalloc(sizeof(*c2hcmd),
2193 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2194
2195 if (!c2hcmd)
2196 goto label_err;
2197
2198 c2hcmd->val = kmalloc(len,
2199 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
2200
2201 if (!c2hcmd->val)
2202 goto label_err2;
2203
2204 /* fill data */
2205 c2hcmd->tag = tag;
2206 c2hcmd->len = len;
2207 memcpy(c2hcmd->val, val, len);
2208
2209 /* enqueue */
2210 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2211
2212 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list);
2213
2214 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2215
2216 /* wake up wq */
2217 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2218
2219 return;
2220
2221 label_err2:
2222 kfree(c2hcmd);
2223
2224 label_err:
2225 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING,
2226 "C2H cmd enqueue fail.\n");
2227 }
2228
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2229 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2230 {
2231 struct rtl_priv *rtlpriv = rtl_priv(hw);
2232 unsigned long flags;
2233 struct rtl_c2hcmd *c2hcmd;
2234 int i;
2235
2236 for (i = 0; i < 200; i++) {
2237 /* dequeue a task */
2238 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2239
2240 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list,
2241 struct rtl_c2hcmd, list);
2242
2243 if (c2hcmd)
2244 list_del(&c2hcmd->list);
2245
2246 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2247
2248 /* do it */
2249 if (!c2hcmd)
2250 break;
2251
2252 if (rtlpriv->cfg->ops->c2h_content_parsing && exec)
2253 rtlpriv->cfg->ops->c2h_content_parsing(hw,
2254 c2hcmd->tag, c2hcmd->len, c2hcmd->val);
2255
2256 /* free */
2257 kfree(c2hcmd->val);
2258
2259 kfree(c2hcmd);
2260 }
2261 }
2262
rtl_c2hcmd_wq_callback(void * data)2263 void rtl_c2hcmd_wq_callback(void *data)
2264 {
2265 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2266 struct rtl_works,
2267 c2hcmd_wq);
2268 struct ieee80211_hw *hw = rtlworks->hw;
2269
2270 rtl_c2hcmd_launcher(hw, 1);
2271 }
2272
rtl_easy_concurrent_retrytimer_callback(unsigned long data)2273 void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
2274 {
2275 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
2276 struct rtl_priv *rtlpriv = rtl_priv(hw);
2277 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2278
2279 if (!buddy_priv)
2280 return;
2281
2282 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2283 }
2284
2285 /*********************************************************
2286 *
2287 * frame process functions
2288 *
2289 *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2290 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2291 {
2292 struct ieee80211_mgmt *mgmt = (void *)data;
2293 u8 *pos, *end;
2294
2295 pos = (u8 *)mgmt->u.beacon.variable;
2296 end = data + len;
2297 while (pos < end) {
2298 if (pos + 2 + pos[1] > end)
2299 return NULL;
2300
2301 if (pos[0] == ie)
2302 return pos;
2303
2304 pos += 2 + pos[1];
2305 }
2306 return NULL;
2307 }
2308
2309 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2310 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */
rtl_make_smps_action(struct ieee80211_hw * hw,enum ieee80211_smps_mode smps,u8 * da,u8 * bssid)2311 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2312 enum ieee80211_smps_mode smps,
2313 u8 *da, u8 *bssid)
2314 {
2315 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2316 struct sk_buff *skb;
2317 struct ieee80211_mgmt *action_frame;
2318
2319 /* 27 = header + category + action + smps mode */
2320 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2321 if (!skb)
2322 return NULL;
2323
2324 skb_reserve(skb, hw->extra_tx_headroom);
2325 action_frame = skb_put_zero(skb, 27);
2326 memcpy(action_frame->da, da, ETH_ALEN);
2327 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2328 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2329 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2330 IEEE80211_STYPE_ACTION);
2331 action_frame->u.action.category = WLAN_CATEGORY_HT;
2332 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2333 switch (smps) {
2334 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2335 case IEEE80211_SMPS_NUM_MODES:/* 4 */
2336 WARN_ON(1);
2337 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
2338 * According to Kernel Code, here is right.
2339 */
2340 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2341 action_frame->u.action.u.ht_smps.smps_control =
2342 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2343 break;
2344 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2345 action_frame->u.action.u.ht_smps.smps_control =
2346 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2347 break;
2348 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2349 action_frame->u.action.u.ht_smps.smps_control =
2350 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2351 break;
2352 }
2353
2354 return skb;
2355 }
2356
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2357 int rtl_send_smps_action(struct ieee80211_hw *hw,
2358 struct ieee80211_sta *sta,
2359 enum ieee80211_smps_mode smps)
2360 {
2361 struct rtl_priv *rtlpriv = rtl_priv(hw);
2362 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2363 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2364 struct sk_buff *skb = NULL;
2365 struct rtl_tcb_desc tcb_desc;
2366 u8 bssid[ETH_ALEN] = {0};
2367
2368 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2369
2370 if (rtlpriv->mac80211.act_scanning)
2371 goto err_free;
2372
2373 if (!sta)
2374 goto err_free;
2375
2376 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2377 goto err_free;
2378
2379 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2380 goto err_free;
2381
2382 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2383 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2384 else
2385 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2386
2387 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2388 /* this is a type = mgmt * stype = action frame */
2389 if (skb) {
2390 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2391 struct rtl_sta_info *sta_entry =
2392 (struct rtl_sta_info *)sta->drv_priv;
2393 sta_entry->mimo_ps = smps;
2394 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2395
2396 info->control.rates[0].idx = 0;
2397 info->band = hw->conf.chandef.chan->band;
2398 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2399 }
2400 return 1;
2401
2402 err_free:
2403 return 0;
2404 }
2405
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2406 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2407 {
2408 struct rtl_priv *rtlpriv = rtl_priv(hw);
2409 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2410 enum io_type iotype;
2411
2412 if (!is_hal_stop(rtlhal)) {
2413 switch (operation) {
2414 case SCAN_OPT_BACKUP:
2415 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2416 rtlpriv->cfg->ops->set_hw_reg(hw,
2417 HW_VAR_IO_CMD,
2418 (u8 *)&iotype);
2419 break;
2420 case SCAN_OPT_RESTORE:
2421 iotype = IO_CMD_RESUME_DM_BY_SCAN;
2422 rtlpriv->cfg->ops->set_hw_reg(hw,
2423 HW_VAR_IO_CMD,
2424 (u8 *)&iotype);
2425 break;
2426 default:
2427 pr_err("Unknown Scan Backup operation.\n");
2428 break;
2429 }
2430 }
2431 }
2432
2433 /* because mac80211 have issues when can receive del ba
2434 * so here we just make a fake del_ba if we receive a ba_req
2435 * but rx_agg was opened to let mac80211 release some ba
2436 * related resources, so please this del_ba for tx
2437 */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2438 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2439 u8 *sa, u8 *bssid, u16 tid)
2440 {
2441 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2442 struct sk_buff *skb;
2443 struct ieee80211_mgmt *action_frame;
2444 u16 params;
2445
2446 /* 27 = header + category + action + smps mode */
2447 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2448 if (!skb)
2449 return NULL;
2450
2451 skb_reserve(skb, hw->extra_tx_headroom);
2452 action_frame = skb_put_zero(skb, 34);
2453 memcpy(action_frame->sa, sa, ETH_ALEN);
2454 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2455 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2456 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2457 IEEE80211_STYPE_ACTION);
2458 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2459 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2460 params = (u16)(1 << 11); /* bit 11 initiator */
2461 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2462
2463 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2464 action_frame->u.action.u.delba.reason_code =
2465 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2466
2467 return skb;
2468 }
2469
rtl_check_beacon_key(struct ieee80211_hw * hw,void * data,unsigned int len)2470 bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
2471 {
2472 struct rtl_priv *rtlpriv = rtl_priv(hw);
2473 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2474 struct rtl_phy *rtlphy = &rtlpriv->phy;
2475 struct ieee80211_hdr *hdr = data;
2476 struct ieee80211_ht_cap *ht_cap_ie;
2477 struct ieee80211_ht_operation *ht_oper_ie = NULL;
2478 struct rtl_beacon_keys bcn_key = {};
2479 struct rtl_beacon_keys *cur_bcn_key;
2480 u8 *ht_cap;
2481 u8 ht_cap_len;
2482 u8 *ht_oper;
2483 u8 ht_oper_len;
2484 u8 *ds_param;
2485 u8 ds_param_len;
2486
2487 if (mac->opmode != NL80211_IFTYPE_STATION)
2488 return false;
2489
2490 /* check if this really is a beacon*/
2491 if (!ieee80211_is_beacon(hdr->frame_control))
2492 return false;
2493
2494 /* min. beacon length + FCS_LEN */
2495 if (len <= 40 + FCS_LEN)
2496 return false;
2497
2498 cur_bcn_key = &mac->cur_beacon_keys;
2499
2500 if (rtlpriv->mac80211.link_state == MAC80211_NOLINK) {
2501 if (cur_bcn_key->valid) {
2502 cur_bcn_key->valid = false;
2503 RT_TRACE(rtlpriv, COMP_BEACON, DBG_LOUD,
2504 "Reset cur_beacon_keys.valid to false!\n");
2505 }
2506 return false;
2507 }
2508
2509 /* and only beacons from the associated BSSID, please */
2510 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
2511 return false;
2512
2513 /***** Parsing DS Param IE ******/
2514 ds_param = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_DS_PARAMS);
2515
2516 if (ds_param && !(ds_param[1] < sizeof(*ds_param))) {
2517 ds_param_len = ds_param[1];
2518 bcn_key.bcn_channel = ds_param[2];
2519 } else {
2520 ds_param = NULL;
2521 }
2522
2523 /***** Parsing HT Cap. IE ******/
2524 ht_cap = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_HT_CAPABILITY);
2525
2526 if (ht_cap && !(ht_cap[1] < sizeof(*ht_cap))) {
2527 ht_cap_len = ht_cap[1];
2528 ht_cap_ie = (struct ieee80211_ht_cap *)&ht_cap[2];
2529 bcn_key.ht_cap_info = ht_cap_ie->cap_info;
2530 } else {
2531 ht_cap = NULL;
2532 }
2533
2534 /***** Parsing HT Info. IE ******/
2535 ht_oper = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_HT_OPERATION);
2536
2537 if (ht_oper && !(ht_oper[1] < sizeof(*ht_oper))) {
2538 ht_oper_len = ht_oper[1];
2539 ht_oper_ie = (struct ieee80211_ht_operation *)&ht_oper[2];
2540 } else {
2541 ht_oper = NULL;
2542 }
2543
2544 /* update bcn_key */
2545
2546 if (!ds_param && ht_oper && ht_oper_ie)
2547 bcn_key.bcn_channel = ht_oper_ie->primary_chan;
2548
2549 if (ht_oper && ht_oper_ie)
2550 bcn_key.ht_info_infos_0_sco = ht_oper_ie->ht_param & 0x03;
2551
2552 bcn_key.valid = true;
2553
2554 /* update cur_beacon_keys or compare beacon key */
2555 if ((rtlpriv->mac80211.link_state != MAC80211_LINKED) &&
2556 (rtlpriv->mac80211.link_state != MAC80211_LINKED_SCANNING))
2557 return true;
2558
2559 if (!cur_bcn_key->valid) {
2560 /* update cur_beacon_keys */
2561 memcpy(cur_bcn_key, &bcn_key, sizeof(bcn_key));
2562 cur_bcn_key->valid = true;
2563
2564 RT_TRACE(rtlpriv, COMP_BEACON, DBG_LOUD,
2565 "Beacon key update!ch=%d, ht_cap_info=0x%x, sco=0x%x\n",
2566 cur_bcn_key->bcn_channel,
2567 cur_bcn_key->ht_cap_info,
2568 cur_bcn_key->ht_info_infos_0_sco);
2569 return true;
2570 }
2571
2572 /* compare beacon key */
2573 if (!memcmp(cur_bcn_key, &bcn_key, sizeof(bcn_key))) {
2574 /* same beacon key */
2575 mac->new_beacon_cnt = 0;
2576 goto chk_exit;
2577 }
2578
2579 if ((cur_bcn_key->bcn_channel == bcn_key.bcn_channel) &&
2580 (cur_bcn_key->ht_cap_info == bcn_key.ht_cap_info)) {
2581 /* Beacon HT info IE, secondary channel offset check */
2582 /* 40M -> 20M */
2583 if (cur_bcn_key->ht_info_infos_0_sco >
2584 bcn_key.ht_info_infos_0_sco) {
2585 /* Not a new beacon */
2586 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2587 "Beacon BW change! sco:0x%x -> 0x%x\n",
2588 cur_bcn_key->ht_info_infos_0_sco,
2589 bcn_key.ht_info_infos_0_sco);
2590
2591 cur_bcn_key->ht_info_infos_0_sco =
2592 bcn_key.ht_info_infos_0_sco;
2593 } else {
2594 /* 20M -> 40M */
2595 if (rtlphy->max_ht_chan_bw >= HT_CHANNEL_WIDTH_20_40) {
2596 /* Not a new beacon */
2597 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2598 "Beacon BW change! sco:0x%x -> 0x%x\n",
2599 cur_bcn_key->ht_info_infos_0_sco,
2600 bcn_key.ht_info_infos_0_sco);
2601
2602 cur_bcn_key->ht_info_infos_0_sco =
2603 bcn_key.ht_info_infos_0_sco;
2604 } else {
2605 mac->new_beacon_cnt++;
2606 }
2607 }
2608 } else {
2609 mac->new_beacon_cnt++;
2610 }
2611
2612 if (mac->new_beacon_cnt == 1) {
2613 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2614 "Get new beacon.\n");
2615 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2616 "Cur : ch=%d, ht_cap=0x%x, sco=0x%x\n",
2617 cur_bcn_key->bcn_channel,
2618 cur_bcn_key->ht_cap_info,
2619 cur_bcn_key->ht_info_infos_0_sco);
2620 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2621 "New RX : ch=%d, ht_cap=0x%x, sco=0x%x\n",
2622 bcn_key.bcn_channel,
2623 bcn_key.ht_cap_info,
2624 bcn_key.ht_info_infos_0_sco);
2625
2626 } else if (mac->new_beacon_cnt > 1) {
2627 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2628 "new beacon cnt: %d\n",
2629 mac->new_beacon_cnt);
2630 }
2631
2632 if (mac->new_beacon_cnt > 3) {
2633 ieee80211_connection_loss(rtlpriv->mac80211.vif);
2634 RT_TRACE(rtlpriv, COMP_BEACON, DBG_DMESG,
2635 "new beacon cnt >3, disconnect !\n");
2636 }
2637
2638 chk_exit:
2639
2640 return true;
2641 }
2642
2643 /*********************************************************
2644 *
2645 * IOT functions
2646 *
2647 *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2648 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2649 struct octet_string vendor_ie)
2650 {
2651 struct rtl_priv *rtlpriv = rtl_priv(hw);
2652 bool matched = false;
2653 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2654 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2655 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2656 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2657 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2658 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2659 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2660 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2661
2662 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2663 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2664 rtlpriv->mac80211.vendor = PEER_ATH;
2665 matched = true;
2666 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2667 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2668 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2669 rtlpriv->mac80211.vendor = PEER_BROAD;
2670 matched = true;
2671 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2672 rtlpriv->mac80211.vendor = PEER_RAL;
2673 matched = true;
2674 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2675 rtlpriv->mac80211.vendor = PEER_CISCO;
2676 matched = true;
2677 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2678 rtlpriv->mac80211.vendor = PEER_MARV;
2679 matched = true;
2680 }
2681
2682 return matched;
2683 }
2684
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2685 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2686 unsigned int len)
2687 {
2688 struct ieee80211_mgmt *mgmt = (void *)data;
2689 struct octet_string vendor_ie;
2690 u8 *pos, *end;
2691
2692 pos = (u8 *)mgmt->u.beacon.variable;
2693 end = data + len;
2694 while (pos < end) {
2695 if (pos[0] == 221) {
2696 vendor_ie.length = pos[1];
2697 vendor_ie.octet = &pos[2];
2698 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2699 return true;
2700 }
2701
2702 if (pos + 2 + pos[1] > end)
2703 return false;
2704
2705 pos += 2 + pos[1];
2706 }
2707 return false;
2708 }
2709
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2710 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2711 {
2712 struct rtl_priv *rtlpriv = rtl_priv(hw);
2713 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2714 struct ieee80211_hdr *hdr = (void *)data;
2715 u32 vendor = PEER_UNKNOWN;
2716
2717 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2718 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2719 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2720 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2721 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2722 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2723 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2724 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2725 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2726 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2727 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2728 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2729 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2730 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2731 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2732 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2733
2734 if (mac->opmode != NL80211_IFTYPE_STATION)
2735 return;
2736
2737 if (mac->link_state == MAC80211_NOLINK) {
2738 mac->vendor = PEER_UNKNOWN;
2739 return;
2740 }
2741
2742 if (mac->cnt_after_linked > 2)
2743 return;
2744
2745 /* check if this really is a beacon */
2746 if (!ieee80211_is_beacon(hdr->frame_control))
2747 return;
2748
2749 /* min. beacon length + FCS_LEN */
2750 if (len <= 40 + FCS_LEN)
2751 return;
2752
2753 /* and only beacons from the associated BSSID, please */
2754 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2755 return;
2756
2757 if (rtl_find_221_ie(hw, data, len))
2758 vendor = mac->vendor;
2759
2760 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2761 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2762 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2763 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2764 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2765 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2766 vendor == PEER_ATH) {
2767 vendor = PEER_ATH;
2768 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2769 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2770 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2771 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2772 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2773 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2774 vendor == PEER_RAL) {
2775 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2776 vendor = PEER_RAL;
2777 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2778 vendor == PEER_CISCO) {
2779 vendor = PEER_CISCO;
2780 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2781 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2782 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2783 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2784 vendor == PEER_BROAD) {
2785 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2786 vendor = PEER_BROAD;
2787 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2788 vendor == PEER_MARV) {
2789 vendor = PEER_MARV;
2790 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2791 }
2792
2793 mac->vendor = vendor;
2794 }
2795
2796 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2797 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2798 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2799 MODULE_LICENSE("GPL");
2800 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2801
2802 struct rtl_global_var rtl_global_var = {};
2803
rtl_core_module_init(void)2804 int rtl_core_module_init(void)
2805 {
2806 if (rtl_rate_control_register())
2807 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2808
2809 /* add debugfs */
2810 rtl_debugfs_add_topdir();
2811
2812 /* init some global vars */
2813 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2814 spin_lock_init(&rtl_global_var.glb_list_lock);
2815
2816 return 0;
2817 }
2818
rtl_core_module_exit(void)2819 void rtl_core_module_exit(void)
2820 {
2821 /*RC*/
2822 rtl_rate_control_unregister();
2823
2824 /* remove debugfs */
2825 rtl_debugfs_remove_topdir();
2826 }
2827