1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012 Realtek Corporation.*/
3
4 #include "wifi.h"
5 #include "rc.h"
6 #include "base.h"
7 #include "efuse.h"
8 #include "cam.h"
9 #include "ps.h"
10 #include "regd.h"
11 #include "pci.h"
12 #include <linux/ip.h>
13 #include <linux/module.h>
14 #include <linux/udp.h>
15
16 /*
17 *NOTICE!!!: This file will be very big, we should
18 *keep it clear under following roles:
19 *
20 *This file include following parts, so, if you add new
21 *functions into this file, please check which part it
22 *should includes. or check if you should add new part
23 *for this file:
24 *
25 *1) mac80211 init functions
26 *2) tx information functions
27 *3) functions called by core.c
28 *4) wq & timer callback functions
29 *5) frame process functions
30 *6) IOT functions
31 *7) sysfs functions
32 *8) vif functions
33 *9) ...
34 */
35
36 /*********************************************************
37 *
38 * mac80211 init functions
39 *
40 *********************************************************/
41 static struct ieee80211_channel rtl_channeltable_2g[] = {
42 {.center_freq = 2412, .hw_value = 1,},
43 {.center_freq = 2417, .hw_value = 2,},
44 {.center_freq = 2422, .hw_value = 3,},
45 {.center_freq = 2427, .hw_value = 4,},
46 {.center_freq = 2432, .hw_value = 5,},
47 {.center_freq = 2437, .hw_value = 6,},
48 {.center_freq = 2442, .hw_value = 7,},
49 {.center_freq = 2447, .hw_value = 8,},
50 {.center_freq = 2452, .hw_value = 9,},
51 {.center_freq = 2457, .hw_value = 10,},
52 {.center_freq = 2462, .hw_value = 11,},
53 {.center_freq = 2467, .hw_value = 12,},
54 {.center_freq = 2472, .hw_value = 13,},
55 {.center_freq = 2484, .hw_value = 14,},
56 };
57
58 static struct ieee80211_channel rtl_channeltable_5g[] = {
59 {.center_freq = 5180, .hw_value = 36,},
60 {.center_freq = 5200, .hw_value = 40,},
61 {.center_freq = 5220, .hw_value = 44,},
62 {.center_freq = 5240, .hw_value = 48,},
63 {.center_freq = 5260, .hw_value = 52,},
64 {.center_freq = 5280, .hw_value = 56,},
65 {.center_freq = 5300, .hw_value = 60,},
66 {.center_freq = 5320, .hw_value = 64,},
67 {.center_freq = 5500, .hw_value = 100,},
68 {.center_freq = 5520, .hw_value = 104,},
69 {.center_freq = 5540, .hw_value = 108,},
70 {.center_freq = 5560, .hw_value = 112,},
71 {.center_freq = 5580, .hw_value = 116,},
72 {.center_freq = 5600, .hw_value = 120,},
73 {.center_freq = 5620, .hw_value = 124,},
74 {.center_freq = 5640, .hw_value = 128,},
75 {.center_freq = 5660, .hw_value = 132,},
76 {.center_freq = 5680, .hw_value = 136,},
77 {.center_freq = 5700, .hw_value = 140,},
78 {.center_freq = 5745, .hw_value = 149,},
79 {.center_freq = 5765, .hw_value = 153,},
80 {.center_freq = 5785, .hw_value = 157,},
81 {.center_freq = 5805, .hw_value = 161,},
82 {.center_freq = 5825, .hw_value = 165,},
83 };
84
85 static struct ieee80211_rate rtl_ratetable_2g[] = {
86 {.bitrate = 10, .hw_value = 0x00,},
87 {.bitrate = 20, .hw_value = 0x01,},
88 {.bitrate = 55, .hw_value = 0x02,},
89 {.bitrate = 110, .hw_value = 0x03,},
90 {.bitrate = 60, .hw_value = 0x04,},
91 {.bitrate = 90, .hw_value = 0x05,},
92 {.bitrate = 120, .hw_value = 0x06,},
93 {.bitrate = 180, .hw_value = 0x07,},
94 {.bitrate = 240, .hw_value = 0x08,},
95 {.bitrate = 360, .hw_value = 0x09,},
96 {.bitrate = 480, .hw_value = 0x0a,},
97 {.bitrate = 540, .hw_value = 0x0b,},
98 };
99
100 static struct ieee80211_rate rtl_ratetable_5g[] = {
101 {.bitrate = 60, .hw_value = 0x04,},
102 {.bitrate = 90, .hw_value = 0x05,},
103 {.bitrate = 120, .hw_value = 0x06,},
104 {.bitrate = 180, .hw_value = 0x07,},
105 {.bitrate = 240, .hw_value = 0x08,},
106 {.bitrate = 360, .hw_value = 0x09,},
107 {.bitrate = 480, .hw_value = 0x0a,},
108 {.bitrate = 540, .hw_value = 0x0b,},
109 };
110
111 static const struct ieee80211_supported_band rtl_band_2ghz = {
112 .band = NL80211_BAND_2GHZ,
113
114 .channels = rtl_channeltable_2g,
115 .n_channels = ARRAY_SIZE(rtl_channeltable_2g),
116
117 .bitrates = rtl_ratetable_2g,
118 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g),
119
120 .ht_cap = {0},
121 };
122
123 static struct ieee80211_supported_band rtl_band_5ghz = {
124 .band = NL80211_BAND_5GHZ,
125
126 .channels = rtl_channeltable_5g,
127 .n_channels = ARRAY_SIZE(rtl_channeltable_5g),
128
129 .bitrates = rtl_ratetable_5g,
130 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g),
131
132 .ht_cap = {0},
133 };
134
135 static const u8 tid_to_ac[] = {
136 2, /* IEEE80211_AC_BE */
137 3, /* IEEE80211_AC_BK */
138 3, /* IEEE80211_AC_BK */
139 2, /* IEEE80211_AC_BE */
140 1, /* IEEE80211_AC_VI */
141 1, /* IEEE80211_AC_VI */
142 0, /* IEEE80211_AC_VO */
143 0, /* IEEE80211_AC_VO */
144 };
145
rtl_tid_to_ac(u8 tid)146 u8 rtl_tid_to_ac(u8 tid)
147 {
148 return tid_to_ac[tid];
149 }
150 EXPORT_SYMBOL_GPL(rtl_tid_to_ac);
151
_rtl_init_hw_ht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_ht_cap * ht_cap)152 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw,
153 struct ieee80211_sta_ht_cap *ht_cap)
154 {
155 struct rtl_priv *rtlpriv = rtl_priv(hw);
156 struct rtl_phy *rtlphy = &(rtlpriv->phy);
157
158 ht_cap->ht_supported = true;
159 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
160 IEEE80211_HT_CAP_SGI_40 |
161 IEEE80211_HT_CAP_SGI_20 |
162 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU;
163
164 if (rtlpriv->rtlhal.disable_amsdu_8k)
165 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
166
167 /*
168 *Maximum length of AMPDU that the STA can receive.
169 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
170 */
171 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
172
173 /*Minimum MPDU start spacing , */
174 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
175
176 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
177
178 /*hw->wiphy->bands[NL80211_BAND_2GHZ]
179 *base on ant_num
180 *rx_mask: RX mask
181 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7
182 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15
183 *if rx_ant >= 3 rx_mask[2]= 0xff;
184 *if BW_40 rx_mask[4]= 0x01;
185 *highest supported RX rate
186 */
187 if (rtlpriv->dm.supp_phymode_switch) {
188 pr_info("Support phy mode switch\n");
189
190 ht_cap->mcs.rx_mask[0] = 0xFF;
191 ht_cap->mcs.rx_mask[1] = 0xFF;
192 ht_cap->mcs.rx_mask[4] = 0x01;
193
194 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
195 } else {
196 if (get_rf_type(rtlphy) == RF_1T2R ||
197 get_rf_type(rtlphy) == RF_2T2R) {
198 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
199 "1T2R or 2T2R\n");
200 ht_cap->mcs.rx_mask[0] = 0xFF;
201 ht_cap->mcs.rx_mask[1] = 0xFF;
202 ht_cap->mcs.rx_mask[4] = 0x01;
203
204 ht_cap->mcs.rx_highest =
205 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15);
206 } else if (get_rf_type(rtlphy) == RF_1T1R) {
207 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n");
208
209 ht_cap->mcs.rx_mask[0] = 0xFF;
210 ht_cap->mcs.rx_mask[1] = 0x00;
211 ht_cap->mcs.rx_mask[4] = 0x01;
212
213 ht_cap->mcs.rx_highest =
214 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7);
215 }
216 }
217 }
218
_rtl_init_hw_vht_capab(struct ieee80211_hw * hw,struct ieee80211_sta_vht_cap * vht_cap)219 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw,
220 struct ieee80211_sta_vht_cap *vht_cap)
221 {
222 struct rtl_priv *rtlpriv = rtl_priv(hw);
223 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
224
225 if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT))
226 return;
227
228 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE ||
229 rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
230 u16 mcs_map;
231
232 vht_cap->vht_supported = true;
233 vht_cap->cap =
234 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
235 IEEE80211_VHT_CAP_SHORT_GI_80 |
236 IEEE80211_VHT_CAP_TXSTBC |
237 IEEE80211_VHT_CAP_RXSTBC_1 |
238 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
239 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
240 IEEE80211_VHT_CAP_HTC_VHT |
241 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
242 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
243 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
244 0;
245
246 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
247 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
248 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
249 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
250 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
251 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
252 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
253 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
254
255 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
256 vht_cap->vht_mcs.rx_highest =
257 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
258 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
259 vht_cap->vht_mcs.tx_highest =
260 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9);
261 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) {
262 u16 mcs_map;
263
264 vht_cap->vht_supported = true;
265 vht_cap->cap =
266 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
267 IEEE80211_VHT_CAP_SHORT_GI_80 |
268 IEEE80211_VHT_CAP_TXSTBC |
269 IEEE80211_VHT_CAP_RXSTBC_1 |
270 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
271 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
272 IEEE80211_VHT_CAP_HTC_VHT |
273 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
274 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
275 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN |
276 0;
277
278 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
279 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 |
280 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
281 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
282 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
283 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
284 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
285 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
286
287 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
288 vht_cap->vht_mcs.rx_highest =
289 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
290 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
291 vht_cap->vht_mcs.tx_highest =
292 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9);
293 }
294 }
295
_rtl_init_mac80211(struct ieee80211_hw * hw)296 static void _rtl_init_mac80211(struct ieee80211_hw *hw)
297 {
298 struct rtl_priv *rtlpriv = rtl_priv(hw);
299 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
300 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
301 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
302 struct ieee80211_supported_band *sband;
303
304 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY &&
305 rtlhal->bandset == BAND_ON_BOTH) {
306 /* 1: 2.4 G bands */
307 /* <1> use mac->bands as mem for hw->wiphy->bands */
308 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
309
310 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
311 * to default value(1T1R) */
312 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz,
313 sizeof(struct ieee80211_supported_band));
314
315 /* <3> init ht cap base on ant_num */
316 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
317
318 /* <4> set mac->sband to wiphy->sband */
319 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
320
321 /* 2: 5 G bands */
322 /* <1> use mac->bands as mem for hw->wiphy->bands */
323 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
324
325 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
326 * to default value(1T1R) */
327 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz,
328 sizeof(struct ieee80211_supported_band));
329
330 /* <3> init ht cap base on ant_num */
331 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
332
333 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
334 /* <4> set mac->sband to wiphy->sband */
335 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
336 } else {
337 if (rtlhal->current_bandtype == BAND_ON_2_4G) {
338 /* <1> use mac->bands as mem for hw->wiphy->bands */
339 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]);
340
341 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ]
342 * to default value(1T1R) */
343 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]),
344 &rtl_band_2ghz,
345 sizeof(struct ieee80211_supported_band));
346
347 /* <3> init ht cap base on ant_num */
348 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
349
350 /* <4> set mac->sband to wiphy->sband */
351 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband;
352 } else if (rtlhal->current_bandtype == BAND_ON_5G) {
353 /* <1> use mac->bands as mem for hw->wiphy->bands */
354 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]);
355
356 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ]
357 * to default value(1T1R) */
358 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]),
359 &rtl_band_5ghz,
360 sizeof(struct ieee80211_supported_band));
361
362 /* <3> init ht cap base on ant_num */
363 _rtl_init_hw_ht_capab(hw, &sband->ht_cap);
364
365 _rtl_init_hw_vht_capab(hw, &sband->vht_cap);
366 /* <4> set mac->sband to wiphy->sband */
367 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband;
368 } else {
369 pr_err("Err BAND %d\n",
370 rtlhal->current_bandtype);
371 }
372 }
373 /* <5> set hw caps */
374 ieee80211_hw_set(hw, SIGNAL_DBM);
375 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
376 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
377 ieee80211_hw_set(hw, MFP_CAPABLE);
378 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
379 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
380 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
381
382 /* swlps or hwlps has been set in diff chip in init_sw_vars */
383 if (rtlpriv->psc.swctrl_lps) {
384 ieee80211_hw_set(hw, SUPPORTS_PS);
385 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
386 }
387 if (rtlpriv->psc.fwctrl_lps) {
388 ieee80211_hw_set(hw, SUPPORTS_PS);
389 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
390 }
391 hw->wiphy->interface_modes =
392 BIT(NL80211_IFTYPE_AP) |
393 BIT(NL80211_IFTYPE_STATION) |
394 BIT(NL80211_IFTYPE_ADHOC) |
395 BIT(NL80211_IFTYPE_MESH_POINT) |
396 BIT(NL80211_IFTYPE_P2P_CLIENT) |
397 BIT(NL80211_IFTYPE_P2P_GO);
398 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
399
400 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
401
402 hw->wiphy->rts_threshold = 2347;
403
404 hw->queues = AC_MAX;
405 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE;
406
407 /* TODO: Correct this value for our hw */
408 hw->max_listen_interval = MAX_LISTEN_INTERVAL;
409 hw->max_rate_tries = MAX_RATE_TRIES;
410 /* hw->max_rates = 1; */
411 hw->sta_data_size = sizeof(struct rtl_sta_info);
412
413 /* wowlan is not supported by kernel if CONFIG_PM is not defined */
414 #ifdef CONFIG_PM
415 if (rtlpriv->psc.wo_wlan_mode) {
416 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET)
417 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
418 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) {
419 rtlpriv->wowlan.n_patterns =
420 MAX_SUPPORT_WOL_PATTERN_NUM;
421 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE;
422 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE;
423 }
424 hw->wiphy->wowlan = &rtlpriv->wowlan;
425 }
426 #endif
427
428 /* <6> mac address */
429 if (is_valid_ether_addr(rtlefuse->dev_addr)) {
430 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr);
431 } else {
432 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 };
433
434 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1);
435 SET_IEEE80211_PERM_ADDR(hw, rtlmac1);
436 }
437 }
438
_rtl_init_deferred_work(struct ieee80211_hw * hw)439 static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
440 {
441 struct rtl_priv *rtlpriv = rtl_priv(hw);
442
443 /* <1> timer */
444 timer_setup(&rtlpriv->works.watchdog_timer,
445 rtl_watch_dog_timer_callback, 0);
446 timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
447 rtl_easy_concurrent_retrytimer_callback, 0);
448 /* <2> work queue */
449 rtlpriv->works.hw = hw;
450 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
451 if (unlikely(!rtlpriv->works.rtl_wq)) {
452 pr_err("Failed to allocate work queue\n");
453 return;
454 }
455
456 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
457 (void *)rtl_watchdog_wq_callback);
458 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
459 (void *)rtl_ips_nic_off_wq_callback);
460 INIT_DELAYED_WORK(&rtlpriv->works.ps_work,
461 (void *)rtl_swlps_wq_callback);
462 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
463 (void *)rtl_swlps_rfon_wq_callback);
464 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq,
465 (void *)rtl_fwevt_wq_callback);
466 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq,
467 (void *)rtl_c2hcmd_wq_callback);
468 }
469
rtl_deinit_deferred_work(struct ieee80211_hw * hw,bool ips_wq)470 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
471 {
472 struct rtl_priv *rtlpriv = rtl_priv(hw);
473
474 del_timer_sync(&rtlpriv->works.watchdog_timer);
475
476 cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
477 if (ips_wq)
478 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
479 else
480 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
481 cancel_delayed_work_sync(&rtlpriv->works.ps_work);
482 cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
483 cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
484 cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
485 }
486 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
487
rtl_init_rfkill(struct ieee80211_hw * hw)488 void rtl_init_rfkill(struct ieee80211_hw *hw)
489 {
490 struct rtl_priv *rtlpriv = rtl_priv(hw);
491
492 bool radio_state;
493 bool blocked;
494 u8 valid = 0;
495
496 /*set init state to on */
497 rtlpriv->rfkill.rfkill_state = true;
498 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
499
500 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
501
502 if (valid) {
503 pr_info("rtlwifi: wireless switch is %s\n",
504 rtlpriv->rfkill.rfkill_state ? "on" : "off");
505
506 rtlpriv->rfkill.rfkill_state = radio_state;
507
508 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1;
509 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
510 }
511
512 wiphy_rfkill_start_polling(hw->wiphy);
513 }
514 EXPORT_SYMBOL(rtl_init_rfkill);
515
rtl_deinit_rfkill(struct ieee80211_hw * hw)516 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
517 {
518 wiphy_rfkill_stop_polling(hw->wiphy);
519 }
520 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
521
rtl_init_core(struct ieee80211_hw * hw)522 int rtl_init_core(struct ieee80211_hw *hw)
523 {
524 struct rtl_priv *rtlpriv = rtl_priv(hw);
525 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
526
527 /* <1> init mac80211 */
528 _rtl_init_mac80211(hw);
529 rtlmac->hw = hw;
530
531 /* <2> rate control register */
532 hw->rate_control_algorithm = "rtl_rc";
533
534 /*
535 * <3> init CRDA must come after init
536 * mac80211 hw in _rtl_init_mac80211.
537 */
538 if (rtl_regd_init(hw, rtl_reg_notifier)) {
539 pr_err("REGD init failed\n");
540 return 1;
541 }
542
543 /* <4> locks */
544 mutex_init(&rtlpriv->locks.conf_mutex);
545 mutex_init(&rtlpriv->locks.ips_mutex);
546 mutex_init(&rtlpriv->locks.lps_mutex);
547 spin_lock_init(&rtlpriv->locks.irq_th_lock);
548 spin_lock_init(&rtlpriv->locks.h2c_lock);
549 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
550 spin_lock_init(&rtlpriv->locks.rf_lock);
551 spin_lock_init(&rtlpriv->locks.waitq_lock);
552 spin_lock_init(&rtlpriv->locks.entry_list_lock);
553 spin_lock_init(&rtlpriv->locks.c2hcmd_lock);
554 spin_lock_init(&rtlpriv->locks.scan_list_lock);
555 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
556 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
557 spin_lock_init(&rtlpriv->locks.iqk_lock);
558 /* <5> init list */
559 INIT_LIST_HEAD(&rtlpriv->entry_list);
560 INIT_LIST_HEAD(&rtlpriv->scan_list.list);
561 skb_queue_head_init(&rtlpriv->tx_report.queue);
562 skb_queue_head_init(&rtlpriv->c2hcmd_queue);
563
564 rtlmac->link_state = MAC80211_NOLINK;
565
566 /* <6> init deferred work */
567 _rtl_init_deferred_work(hw);
568
569 return 0;
570 }
571 EXPORT_SYMBOL_GPL(rtl_init_core);
572
573 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
574 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
575 bool timeout);
576
rtl_deinit_core(struct ieee80211_hw * hw)577 void rtl_deinit_core(struct ieee80211_hw *hw)
578 {
579 rtl_c2hcmd_launcher(hw, 0);
580 rtl_free_entries_from_scan_list(hw);
581 rtl_free_entries_from_ack_queue(hw, false);
582 }
583 EXPORT_SYMBOL_GPL(rtl_deinit_core);
584
rtl_init_rx_config(struct ieee80211_hw * hw)585 void rtl_init_rx_config(struct ieee80211_hw *hw)
586 {
587 struct rtl_priv *rtlpriv = rtl_priv(hw);
588 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
589
590 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
591 }
592 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
593
594 /*********************************************************
595 *
596 * tx information functions
597 *
598 *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)599 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
600 struct rtl_tcb_desc *tcb_desc,
601 struct ieee80211_tx_info *info)
602 {
603 struct rtl_priv *rtlpriv = rtl_priv(hw);
604 u8 rate_flag = info->control.rates[0].flags;
605
606 tcb_desc->use_shortpreamble = false;
607
608 /* 1M can only use Long Preamble. 11B spec */
609 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
610 return;
611 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
612 tcb_desc->use_shortpreamble = true;
613
614 return;
615 }
616
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)617 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
618 struct ieee80211_sta *sta,
619 struct rtl_tcb_desc *tcb_desc,
620 struct ieee80211_tx_info *info)
621 {
622 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
623 u8 rate_flag = info->control.rates[0].flags;
624 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
625 u8 sgi_80 = 0, bw_80 = 0;
626
627 tcb_desc->use_shortgi = false;
628
629 if (sta == NULL)
630 return;
631
632 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
633 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
634 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
635
636 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
637 return;
638
639 if (!sgi_40 && !sgi_20)
640 return;
641
642 if (mac->opmode == NL80211_IFTYPE_STATION) {
643 bw_40 = mac->bw_40;
644 bw_80 = mac->bw_80;
645 } else if (mac->opmode == NL80211_IFTYPE_AP ||
646 mac->opmode == NL80211_IFTYPE_ADHOC ||
647 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
648 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
649 bw_80 = sta->vht_cap.vht_supported;
650 }
651
652 if (bw_80) {
653 if (sgi_80)
654 tcb_desc->use_shortgi = true;
655 else
656 tcb_desc->use_shortgi = false;
657 } else {
658 if (bw_40 && sgi_40)
659 tcb_desc->use_shortgi = true;
660 else if (!bw_40 && sgi_20)
661 tcb_desc->use_shortgi = true;
662 }
663
664 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
665 tcb_desc->use_shortgi = false;
666 }
667
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)668 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
669 struct rtl_tcb_desc *tcb_desc,
670 struct ieee80211_tx_info *info)
671 {
672 struct rtl_priv *rtlpriv = rtl_priv(hw);
673 u8 rate_flag = info->control.rates[0].flags;
674
675 /* Common Settings */
676 tcb_desc->rts_stbc = false;
677 tcb_desc->cts_enable = false;
678 tcb_desc->rts_sc = 0;
679 tcb_desc->rts_bw = false;
680 tcb_desc->rts_use_shortpreamble = false;
681 tcb_desc->rts_use_shortgi = false;
682
683 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
684 /* Use CTS-to-SELF in protection mode. */
685 tcb_desc->rts_enable = true;
686 tcb_desc->cts_enable = true;
687 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
688 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
689 /* Use RTS-CTS in protection mode. */
690 tcb_desc->rts_enable = true;
691 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
692 }
693 }
694
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)695 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
696 enum wireless_mode wirelessmode)
697 {
698 struct rtl_priv *rtlpriv = rtl_priv(hw);
699 struct rtl_phy *rtlphy = &rtlpriv->phy;
700 u8 ret = 0;
701
702 switch (rate_index) {
703 case RATR_INX_WIRELESS_NGB:
704 if (rtlphy->rf_type == RF_1T1R)
705 ret = RATEID_IDX_BGN_40M_1SS;
706 else
707 ret = RATEID_IDX_BGN_40M_2SS;
708 ; break;
709 case RATR_INX_WIRELESS_N:
710 case RATR_INX_WIRELESS_NG:
711 if (rtlphy->rf_type == RF_1T1R)
712 ret = RATEID_IDX_GN_N1SS;
713 else
714 ret = RATEID_IDX_GN_N2SS;
715 ; break;
716 case RATR_INX_WIRELESS_NB:
717 if (rtlphy->rf_type == RF_1T1R)
718 ret = RATEID_IDX_BGN_20M_1SS_BN;
719 else
720 ret = RATEID_IDX_BGN_20M_2SS_BN;
721 ; break;
722 case RATR_INX_WIRELESS_GB:
723 ret = RATEID_IDX_BG;
724 break;
725 case RATR_INX_WIRELESS_G:
726 ret = RATEID_IDX_G;
727 break;
728 case RATR_INX_WIRELESS_B:
729 ret = RATEID_IDX_B;
730 break;
731 case RATR_INX_WIRELESS_MC:
732 if (wirelessmode == WIRELESS_MODE_B ||
733 wirelessmode == WIRELESS_MODE_G ||
734 wirelessmode == WIRELESS_MODE_N_24G ||
735 wirelessmode == WIRELESS_MODE_AC_24G)
736 ret = RATEID_IDX_BG;
737 else
738 ret = RATEID_IDX_G;
739 break;
740 case RATR_INX_WIRELESS_AC_5N:
741 if (rtlphy->rf_type == RF_1T1R)
742 ret = RATEID_IDX_VHT_1SS;
743 else
744 ret = RATEID_IDX_VHT_2SS;
745 break;
746 case RATR_INX_WIRELESS_AC_24N:
747 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
748 if (rtlphy->rf_type == RF_1T1R)
749 ret = RATEID_IDX_VHT_1SS;
750 else
751 ret = RATEID_IDX_VHT_2SS;
752 } else {
753 if (rtlphy->rf_type == RF_1T1R)
754 ret = RATEID_IDX_MIX1;
755 else
756 ret = RATEID_IDX_MIX2;
757 }
758 break;
759 default:
760 ret = RATEID_IDX_BGN_40M_2SS;
761 break;
762 }
763 return ret;
764 }
765 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
766
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)767 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
768 struct ieee80211_sta *sta,
769 struct rtl_tcb_desc *tcb_desc)
770 {
771 #define SET_RATE_ID(rate_id) \
772 ({typeof(rate_id) _id = rate_id; \
773 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
774 rtl_mrate_idx_to_arfr_id(hw, _id, \
775 (sta_entry ? sta_entry->wireless_mode : \
776 WIRELESS_MODE_G)) : \
777 _id); })
778
779 struct rtl_priv *rtlpriv = rtl_priv(hw);
780 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
781 struct rtl_sta_info *sta_entry = NULL;
782 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
783
784 if (sta) {
785 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
786 ratr_index = sta_entry->ratr_index;
787 }
788 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
789 if (mac->opmode == NL80211_IFTYPE_STATION) {
790 tcb_desc->ratr_index = 0;
791 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
792 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
793 if (tcb_desc->multicast || tcb_desc->broadcast) {
794 tcb_desc->hw_rate =
795 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
796 tcb_desc->use_driver_rate = 1;
797 tcb_desc->ratr_index =
798 SET_RATE_ID(RATR_INX_WIRELESS_MC);
799 } else {
800 tcb_desc->ratr_index = ratr_index;
801 }
802 } else if (mac->opmode == NL80211_IFTYPE_AP) {
803 tcb_desc->ratr_index = ratr_index;
804 }
805 }
806
807 if (rtlpriv->dm.useramask) {
808 tcb_desc->ratr_index = ratr_index;
809 /* TODO we will differentiate adhoc and station future */
810 if (mac->opmode == NL80211_IFTYPE_STATION ||
811 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
812 tcb_desc->mac_id = 0;
813
814 if (sta &&
815 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
816 ; /* use sta_entry->ratr_index */
817 else if (mac->mode == WIRELESS_MODE_AC_5G)
818 tcb_desc->ratr_index =
819 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
820 else if (mac->mode == WIRELESS_MODE_AC_24G)
821 tcb_desc->ratr_index =
822 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
823 else if (mac->mode == WIRELESS_MODE_N_24G)
824 tcb_desc->ratr_index =
825 SET_RATE_ID(RATR_INX_WIRELESS_NGB);
826 else if (mac->mode == WIRELESS_MODE_N_5G)
827 tcb_desc->ratr_index =
828 SET_RATE_ID(RATR_INX_WIRELESS_NG);
829 else if (mac->mode & WIRELESS_MODE_G)
830 tcb_desc->ratr_index =
831 SET_RATE_ID(RATR_INX_WIRELESS_GB);
832 else if (mac->mode & WIRELESS_MODE_B)
833 tcb_desc->ratr_index =
834 SET_RATE_ID(RATR_INX_WIRELESS_B);
835 else if (mac->mode & WIRELESS_MODE_A)
836 tcb_desc->ratr_index =
837 SET_RATE_ID(RATR_INX_WIRELESS_G);
838
839 } else if (mac->opmode == NL80211_IFTYPE_AP ||
840 mac->opmode == NL80211_IFTYPE_ADHOC) {
841 if (NULL != sta) {
842 if (sta->aid > 0)
843 tcb_desc->mac_id = sta->aid + 1;
844 else
845 tcb_desc->mac_id = 1;
846 } else {
847 tcb_desc->mac_id = 0;
848 }
849 }
850 }
851 #undef SET_RATE_ID
852 }
853
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)854 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
855 struct ieee80211_sta *sta,
856 struct rtl_tcb_desc *tcb_desc)
857 {
858 struct rtl_priv *rtlpriv = rtl_priv(hw);
859 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
860
861 tcb_desc->packet_bw = false;
862 if (!sta)
863 return;
864 if (mac->opmode == NL80211_IFTYPE_AP ||
865 mac->opmode == NL80211_IFTYPE_ADHOC ||
866 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
867 if (!(sta->ht_cap.ht_supported) ||
868 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
869 return;
870 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
871 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
872 return;
873 }
874 if (tcb_desc->multicast || tcb_desc->broadcast)
875 return;
876
877 /*use legency rate, shall use 20MHz */
878 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
879 return;
880
881 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
882
883 if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
884 if (mac->opmode == NL80211_IFTYPE_AP ||
885 mac->opmode == NL80211_IFTYPE_ADHOC ||
886 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
887 if (!(sta->vht_cap.vht_supported))
888 return;
889 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
890 if (!mac->bw_80 ||
891 !(sta->vht_cap.vht_supported))
892 return;
893 }
894 if (tcb_desc->hw_rate <=
895 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
896 return;
897 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
898 }
899 }
900
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)901 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
902 struct ieee80211_sta *sta)
903 {
904 struct rtl_priv *rtlpriv = rtl_priv(hw);
905 struct rtl_phy *rtlphy = &(rtlpriv->phy);
906 u8 hw_rate;
907 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
908
909 if ((get_rf_type(rtlphy) == RF_2T2R) &&
910 (tx_mcs_map & 0x000c) != 0x000c) {
911 if ((tx_mcs_map & 0x000c) >> 2 ==
912 IEEE80211_VHT_MCS_SUPPORT_0_7)
913 hw_rate =
914 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
915 else if ((tx_mcs_map & 0x000c) >> 2 ==
916 IEEE80211_VHT_MCS_SUPPORT_0_8)
917 hw_rate =
918 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
919 else
920 hw_rate =
921 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
922 } else {
923 if ((tx_mcs_map & 0x0003) ==
924 IEEE80211_VHT_MCS_SUPPORT_0_7)
925 hw_rate =
926 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
927 else if ((tx_mcs_map & 0x0003) ==
928 IEEE80211_VHT_MCS_SUPPORT_0_8)
929 hw_rate =
930 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
931 else
932 hw_rate =
933 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
934 }
935
936 return hw_rate;
937 }
938
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)939 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
940 struct ieee80211_sta *sta)
941 {
942 struct rtl_priv *rtlpriv = rtl_priv(hw);
943 struct rtl_phy *rtlphy = &rtlpriv->phy;
944 u8 hw_rate;
945
946 if (get_rf_type(rtlphy) == RF_2T2R &&
947 sta->ht_cap.mcs.rx_mask[1] != 0)
948 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
949 else
950 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
951
952 return hw_rate;
953 }
954
955 /* mac80211's rate_idx is like this:
956 *
957 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
958 *
959 * B/G rate:
960 * (rx_status->flag & RX_FLAG_HT) = 0,
961 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
962 *
963 * N rate:
964 * (rx_status->flag & RX_FLAG_HT) = 1,
965 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
966 *
967 * 5G band:rx_status->band == NL80211_BAND_5GHZ
968 * A rate:
969 * (rx_status->flag & RX_FLAG_HT) = 0,
970 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
971 *
972 * N rate:
973 * (rx_status->flag & RX_FLAG_HT) = 1,
974 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
975 *
976 * VHT rates:
977 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
978 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
979 */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)980 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
981 u8 desc_rate)
982 {
983 int rate_idx;
984
985 if (isvht) {
986 switch (desc_rate) {
987 case DESC_RATEVHT1SS_MCS0:
988 rate_idx = 0;
989 break;
990 case DESC_RATEVHT1SS_MCS1:
991 rate_idx = 1;
992 break;
993 case DESC_RATEVHT1SS_MCS2:
994 rate_idx = 2;
995 break;
996 case DESC_RATEVHT1SS_MCS3:
997 rate_idx = 3;
998 break;
999 case DESC_RATEVHT1SS_MCS4:
1000 rate_idx = 4;
1001 break;
1002 case DESC_RATEVHT1SS_MCS5:
1003 rate_idx = 5;
1004 break;
1005 case DESC_RATEVHT1SS_MCS6:
1006 rate_idx = 6;
1007 break;
1008 case DESC_RATEVHT1SS_MCS7:
1009 rate_idx = 7;
1010 break;
1011 case DESC_RATEVHT1SS_MCS8:
1012 rate_idx = 8;
1013 break;
1014 case DESC_RATEVHT1SS_MCS9:
1015 rate_idx = 9;
1016 break;
1017 case DESC_RATEVHT2SS_MCS0:
1018 rate_idx = 0;
1019 break;
1020 case DESC_RATEVHT2SS_MCS1:
1021 rate_idx = 1;
1022 break;
1023 case DESC_RATEVHT2SS_MCS2:
1024 rate_idx = 2;
1025 break;
1026 case DESC_RATEVHT2SS_MCS3:
1027 rate_idx = 3;
1028 break;
1029 case DESC_RATEVHT2SS_MCS4:
1030 rate_idx = 4;
1031 break;
1032 case DESC_RATEVHT2SS_MCS5:
1033 rate_idx = 5;
1034 break;
1035 case DESC_RATEVHT2SS_MCS6:
1036 rate_idx = 6;
1037 break;
1038 case DESC_RATEVHT2SS_MCS7:
1039 rate_idx = 7;
1040 break;
1041 case DESC_RATEVHT2SS_MCS8:
1042 rate_idx = 8;
1043 break;
1044 case DESC_RATEVHT2SS_MCS9:
1045 rate_idx = 9;
1046 break;
1047 default:
1048 rate_idx = 0;
1049 break;
1050 }
1051 return rate_idx;
1052 }
1053 if (false == isht) {
1054 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1055 switch (desc_rate) {
1056 case DESC_RATE1M:
1057 rate_idx = 0;
1058 break;
1059 case DESC_RATE2M:
1060 rate_idx = 1;
1061 break;
1062 case DESC_RATE5_5M:
1063 rate_idx = 2;
1064 break;
1065 case DESC_RATE11M:
1066 rate_idx = 3;
1067 break;
1068 case DESC_RATE6M:
1069 rate_idx = 4;
1070 break;
1071 case DESC_RATE9M:
1072 rate_idx = 5;
1073 break;
1074 case DESC_RATE12M:
1075 rate_idx = 6;
1076 break;
1077 case DESC_RATE18M:
1078 rate_idx = 7;
1079 break;
1080 case DESC_RATE24M:
1081 rate_idx = 8;
1082 break;
1083 case DESC_RATE36M:
1084 rate_idx = 9;
1085 break;
1086 case DESC_RATE48M:
1087 rate_idx = 10;
1088 break;
1089 case DESC_RATE54M:
1090 rate_idx = 11;
1091 break;
1092 default:
1093 rate_idx = 0;
1094 break;
1095 }
1096 } else {
1097 switch (desc_rate) {
1098 case DESC_RATE6M:
1099 rate_idx = 0;
1100 break;
1101 case DESC_RATE9M:
1102 rate_idx = 1;
1103 break;
1104 case DESC_RATE12M:
1105 rate_idx = 2;
1106 break;
1107 case DESC_RATE18M:
1108 rate_idx = 3;
1109 break;
1110 case DESC_RATE24M:
1111 rate_idx = 4;
1112 break;
1113 case DESC_RATE36M:
1114 rate_idx = 5;
1115 break;
1116 case DESC_RATE48M:
1117 rate_idx = 6;
1118 break;
1119 case DESC_RATE54M:
1120 rate_idx = 7;
1121 break;
1122 default:
1123 rate_idx = 0;
1124 break;
1125 }
1126 }
1127 } else {
1128 switch (desc_rate) {
1129 case DESC_RATEMCS0:
1130 rate_idx = 0;
1131 break;
1132 case DESC_RATEMCS1:
1133 rate_idx = 1;
1134 break;
1135 case DESC_RATEMCS2:
1136 rate_idx = 2;
1137 break;
1138 case DESC_RATEMCS3:
1139 rate_idx = 3;
1140 break;
1141 case DESC_RATEMCS4:
1142 rate_idx = 4;
1143 break;
1144 case DESC_RATEMCS5:
1145 rate_idx = 5;
1146 break;
1147 case DESC_RATEMCS6:
1148 rate_idx = 6;
1149 break;
1150 case DESC_RATEMCS7:
1151 rate_idx = 7;
1152 break;
1153 case DESC_RATEMCS8:
1154 rate_idx = 8;
1155 break;
1156 case DESC_RATEMCS9:
1157 rate_idx = 9;
1158 break;
1159 case DESC_RATEMCS10:
1160 rate_idx = 10;
1161 break;
1162 case DESC_RATEMCS11:
1163 rate_idx = 11;
1164 break;
1165 case DESC_RATEMCS12:
1166 rate_idx = 12;
1167 break;
1168 case DESC_RATEMCS13:
1169 rate_idx = 13;
1170 break;
1171 case DESC_RATEMCS14:
1172 rate_idx = 14;
1173 break;
1174 case DESC_RATEMCS15:
1175 rate_idx = 15;
1176 break;
1177 default:
1178 rate_idx = 0;
1179 break;
1180 }
1181 }
1182 return rate_idx;
1183 }
1184 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1185
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1186 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1187 struct ieee80211_tx_info *info)
1188 {
1189 struct rtl_priv *rtlpriv = rtl_priv(hw);
1190 struct ieee80211_tx_rate *r = &info->status.rates[0];
1191 struct ieee80211_rate *txrate;
1192 u8 hw_value = 0x0;
1193
1194 if (r->flags & IEEE80211_TX_RC_MCS) {
1195 /* HT MCS0-15 */
1196 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1197 r->idx;
1198 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1199 /* VHT MCS0-9, NSS */
1200 if (ieee80211_rate_get_vht_nss(r) == 2)
1201 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1202 else
1203 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1204
1205 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1206 } else {
1207 /* legacy */
1208 txrate = ieee80211_get_tx_rate(hw, info);
1209
1210 if (txrate)
1211 hw_value = txrate->hw_value;
1212 }
1213
1214 /* check 5G band */
1215 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1216 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1217 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1218
1219 return hw_value;
1220 }
1221
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)1222 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1223 struct ieee80211_tx_info *info,
1224 struct ieee80211_sta *sta,
1225 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1226 {
1227 #define SET_RATE_ID(rate_id) \
1228 ({typeof(rate_id) _id = rate_id; \
1229 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
1230 rtl_mrate_idx_to_arfr_id(hw, _id, \
1231 (sta_entry ? sta_entry->wireless_mode : \
1232 WIRELESS_MODE_G)) : \
1233 _id); })
1234
1235 struct rtl_priv *rtlpriv = rtl_priv(hw);
1236 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1237 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1238 struct rtl_sta_info *sta_entry =
1239 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1240
1241 __le16 fc = rtl_get_fc(skb);
1242
1243 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1244
1245 if (rtl_is_tx_report_skb(hw, skb))
1246 tcb_desc->use_spe_rpt = 1;
1247
1248 if (ieee80211_is_data(fc)) {
1249 /*
1250 *we set data rate INX 0
1251 *in rtl_rc.c if skb is special data or
1252 *mgt which need low data rate.
1253 */
1254
1255 /*
1256 *So tcb_desc->hw_rate is just used for
1257 *special data and mgt frames
1258 */
1259 if (info->control.rates[0].idx == 0 ||
1260 ieee80211_is_nullfunc(fc)) {
1261 tcb_desc->use_driver_rate = true;
1262 tcb_desc->ratr_index =
1263 SET_RATE_ID(RATR_INX_WIRELESS_MC);
1264
1265 tcb_desc->disable_ratefallback = 1;
1266 } else {
1267 /*
1268 *because hw will nerver use hw_rate
1269 *when tcb_desc->use_driver_rate = false
1270 *so we never set highest N rate here,
1271 *and N rate will all be controlled by FW
1272 *when tcb_desc->use_driver_rate = false
1273 */
1274 if (sta && sta->vht_cap.vht_supported) {
1275 tcb_desc->hw_rate =
1276 _rtl_get_vht_highest_n_rate(hw, sta);
1277 } else {
1278 if (sta && sta->ht_cap.ht_supported) {
1279 tcb_desc->hw_rate =
1280 _rtl_get_highest_n_rate(hw, sta);
1281 } else {
1282 if (rtlmac->mode == WIRELESS_MODE_B) {
1283 tcb_desc->hw_rate =
1284 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1285 } else {
1286 tcb_desc->hw_rate =
1287 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1288 }
1289 }
1290 }
1291 }
1292
1293 if (is_multicast_ether_addr(hdr->addr1))
1294 tcb_desc->multicast = 1;
1295 else if (is_broadcast_ether_addr(hdr->addr1))
1296 tcb_desc->broadcast = 1;
1297
1298 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1299 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1300 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1301 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1302 _rtl_query_protection_mode(hw, tcb_desc, info);
1303 } else {
1304 tcb_desc->use_driver_rate = true;
1305 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1306 tcb_desc->disable_ratefallback = 1;
1307 tcb_desc->mac_id = 0;
1308 tcb_desc->packet_bw = false;
1309 }
1310 #undef SET_RATE_ID
1311 }
1312 EXPORT_SYMBOL(rtl_get_tcb_desc);
1313
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1314 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1315 {
1316 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1317 struct rtl_priv *rtlpriv = rtl_priv(hw);
1318 __le16 fc = rtl_get_fc(skb);
1319
1320 if (rtlpriv->dm.supp_phymode_switch &&
1321 mac->link_state < MAC80211_LINKED &&
1322 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1323 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1324 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1325 }
1326 if (ieee80211_is_auth(fc)) {
1327 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1328
1329 mac->link_state = MAC80211_LINKING;
1330 /* Dul mac */
1331 rtlpriv->phy.need_iqk = true;
1332
1333 }
1334
1335 return true;
1336 }
1337 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1338
1339 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1340 u8 *bssid, u16 tid);
1341
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1342 static void process_agg_start(struct ieee80211_hw *hw,
1343 struct ieee80211_hdr *hdr, u16 tid)
1344 {
1345 struct rtl_priv *rtlpriv = rtl_priv(hw);
1346 struct ieee80211_rx_status rx_status = { 0 };
1347 struct sk_buff *skb_delba = NULL;
1348
1349 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1350 if (skb_delba) {
1351 rx_status.freq = hw->conf.chandef.chan->center_freq;
1352 rx_status.band = hw->conf.chandef.chan->band;
1353 rx_status.flag |= RX_FLAG_DECRYPTED;
1354 rx_status.flag |= RX_FLAG_MACTIME_START;
1355 rx_status.rate_idx = 0;
1356 rx_status.signal = 50 + 10;
1357 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1358 &rx_status, sizeof(rx_status));
1359 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1360 "fake del\n",
1361 skb_delba->data,
1362 skb_delba->len);
1363 ieee80211_rx_irqsafe(hw, skb_delba);
1364 }
1365 }
1366
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1367 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1368 {
1369 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1370 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1371 struct rtl_priv *rtlpriv = rtl_priv(hw);
1372 __le16 fc = rtl_get_fc(skb);
1373 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1374 u8 category;
1375
1376 if (!ieee80211_is_action(fc))
1377 return true;
1378
1379 category = *act;
1380 act++;
1381 switch (category) {
1382 case ACT_CAT_BA:
1383 switch (*act) {
1384 case ACT_ADDBAREQ:
1385 if (mac->act_scanning)
1386 return false;
1387
1388 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1389 "%s ACT_ADDBAREQ From :%pM\n",
1390 is_tx ? "Tx" : "Rx", hdr->addr2);
1391 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1392 skb->data, skb->len);
1393 if (!is_tx) {
1394 struct ieee80211_sta *sta = NULL;
1395 struct rtl_sta_info *sta_entry = NULL;
1396 struct rtl_tid_data *tid_data;
1397 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1398 u16 capab = 0, tid = 0;
1399
1400 rcu_read_lock();
1401 sta = rtl_find_sta(hw, hdr->addr3);
1402 if (sta == NULL) {
1403 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV,
1404 DBG_DMESG, "sta is NULL\n");
1405 rcu_read_unlock();
1406 return true;
1407 }
1408
1409 sta_entry =
1410 (struct rtl_sta_info *)sta->drv_priv;
1411 if (!sta_entry) {
1412 rcu_read_unlock();
1413 return true;
1414 }
1415 capab =
1416 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1417 tid = (capab &
1418 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1419 if (tid >= MAX_TID_COUNT) {
1420 rcu_read_unlock();
1421 return true;
1422 }
1423 tid_data = &sta_entry->tids[tid];
1424 if (tid_data->agg.rx_agg_state ==
1425 RTL_RX_AGG_START)
1426 process_agg_start(hw, hdr, tid);
1427 rcu_read_unlock();
1428 }
1429 break;
1430 case ACT_ADDBARSP:
1431 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1432 "%s ACT_ADDBARSP From :%pM\n",
1433 is_tx ? "Tx" : "Rx", hdr->addr2);
1434 break;
1435 case ACT_DELBA:
1436 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1437 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1438 break;
1439 }
1440 break;
1441 default:
1442 break;
1443 }
1444
1445 return true;
1446 }
1447 EXPORT_SYMBOL_GPL(rtl_action_proc);
1448
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1449 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1450 int type)
1451 {
1452 struct ieee80211_hw *hw = rtlpriv->hw;
1453
1454 rtlpriv->ra.is_special_data = true;
1455 if (rtlpriv->cfg->ops->get_btc_status())
1456 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1457 rtlpriv, type);
1458 rtl_lps_leave(hw);
1459 ppsc->last_delaylps_stamp_jiffies = jiffies;
1460 }
1461
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1462 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1463 struct sk_buff *skb, bool is_enc)
1464 {
1465 struct rtl_priv *rtlpriv = rtl_priv(hw);
1466 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1467 u8 encrypt_header_len = 0;
1468 u8 offset;
1469
1470 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1471 case WEP40_ENCRYPTION:
1472 case WEP104_ENCRYPTION:
1473 encrypt_header_len = 4;/*WEP_IV_LEN*/
1474 break;
1475 case TKIP_ENCRYPTION:
1476 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1477 break;
1478 case AESCCMP_ENCRYPTION:
1479 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1480 break;
1481 default:
1482 break;
1483 }
1484
1485 offset = mac_hdr_len + SNAP_SIZE;
1486 if (is_enc)
1487 offset += encrypt_header_len;
1488
1489 return skb->data + offset;
1490 }
1491
1492 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1493 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1494 bool is_enc)
1495 {
1496 struct rtl_priv *rtlpriv = rtl_priv(hw);
1497 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1498 __le16 fc = rtl_get_fc(skb);
1499 u16 ether_type;
1500 const u8 *ether_type_ptr;
1501 const struct iphdr *ip;
1502
1503 if (!ieee80211_is_data(fc))
1504 goto end;
1505
1506 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1507 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1508
1509 if (ETH_P_IP == ether_type) {
1510 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1511 PROTOC_TYPE_SIZE);
1512 if (IPPROTO_UDP == ip->protocol) {
1513 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1514 (ip->ihl << 2));
1515 if (((((u8 *)udp)[1] == 68) &&
1516 (((u8 *)udp)[3] == 67)) ||
1517 ((((u8 *)udp)[1] == 67) &&
1518 (((u8 *)udp)[3] == 68))) {
1519 /* 68 : UDP BOOTP client
1520 * 67 : UDP BOOTP server
1521 */
1522 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
1523 DBG_DMESG, "dhcp %s !!\n",
1524 (is_tx) ? "Tx" : "Rx");
1525
1526 if (is_tx)
1527 setup_special_tx(rtlpriv, ppsc,
1528 PACKET_DHCP);
1529
1530 return true;
1531 }
1532 }
1533 } else if (ETH_P_ARP == ether_type) {
1534 if (is_tx)
1535 setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1536
1537 return true;
1538 } else if (ETH_P_PAE == ether_type) {
1539 /* EAPOL is seens as in-4way */
1540 rtlpriv->btcoexist.btc_info.in_4way = true;
1541 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1542
1543 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1544 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1545
1546 if (is_tx) {
1547 rtlpriv->ra.is_special_data = true;
1548 rtl_lps_leave(hw);
1549 ppsc->last_delaylps_stamp_jiffies = jiffies;
1550
1551 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1552 }
1553
1554 return true;
1555 } else if (ETH_P_IPV6 == ether_type) {
1556 /* TODO: Handle any IPv6 cases that need special handling.
1557 * For now, always return false
1558 */
1559 goto end;
1560 }
1561
1562 end:
1563 rtlpriv->ra.is_special_data = false;
1564 return false;
1565 }
1566 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1567
rtl_tx_ackqueue(struct ieee80211_hw * hw,struct sk_buff * skb)1568 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1569 {
1570 struct rtl_priv *rtlpriv = rtl_priv(hw);
1571 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1572
1573 __skb_queue_tail(&tx_report->queue, skb);
1574 }
1575 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1576
rtl_tx_status(struct ieee80211_hw * hw,struct sk_buff * skb,bool ack)1577 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1578 bool ack)
1579 {
1580 struct rtl_priv *rtlpriv = rtl_priv(hw);
1581 struct ieee80211_tx_info *info;
1582
1583 info = IEEE80211_SKB_CB(skb);
1584 ieee80211_tx_info_clear_status(info);
1585 if (ack) {
1586 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1587 "tx report: ack\n");
1588 info->flags |= IEEE80211_TX_STAT_ACK;
1589 } else {
1590 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1591 "tx report: not ack\n");
1592 info->flags &= ~IEEE80211_TX_STAT_ACK;
1593 }
1594 ieee80211_tx_status_irqsafe(hw, skb);
1595 }
1596
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1597 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1598 {
1599 u16 ether_type;
1600 const u8 *ether_type_ptr;
1601 __le16 fc = rtl_get_fc(skb);
1602
1603 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1604 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1605
1606 if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1607 return true;
1608
1609 return false;
1610 }
1611
rtl_get_tx_report_sn(struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1612 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1613 struct rtlwifi_tx_info *tx_info)
1614 {
1615 struct rtl_priv *rtlpriv = rtl_priv(hw);
1616 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1617 u16 sn;
1618
1619 /* SW_DEFINE[11:8] are reserved (driver fills zeros)
1620 * SW_DEFINE[7:2] are used by driver
1621 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1622 */
1623 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1624
1625 tx_report->last_sent_sn = sn;
1626 tx_report->last_sent_time = jiffies;
1627 tx_info->sn = sn;
1628 tx_info->send_time = tx_report->last_sent_time;
1629 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1630 "Send TX-Report sn=0x%X\n", sn);
1631
1632 return sn;
1633 }
1634
rtl_set_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1635 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1636 struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1637 {
1638 if (ptcb_desc->use_spe_rpt) {
1639 u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1640
1641 SET_TX_DESC_SPE_RPT(pdesc, 1);
1642 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1643 }
1644 }
1645 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1646
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1647 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1648 {
1649 struct rtl_priv *rtlpriv = rtl_priv(hw);
1650 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1651 struct rtlwifi_tx_info *tx_info;
1652 struct sk_buff_head *queue = &tx_report->queue;
1653 struct sk_buff *skb;
1654 u16 sn;
1655 u8 st, retry;
1656
1657 if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1658 sn = GET_TX_REPORT_SN_V2(tmp_buf);
1659 st = GET_TX_REPORT_ST_V2(tmp_buf);
1660 retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1661 } else {
1662 sn = GET_TX_REPORT_SN_V1(tmp_buf);
1663 st = GET_TX_REPORT_ST_V1(tmp_buf);
1664 retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1665 }
1666
1667 tx_report->last_recv_sn = sn;
1668
1669 skb_queue_walk(queue, skb) {
1670 tx_info = rtl_tx_skb_cb_info(skb);
1671 if (tx_info->sn == sn) {
1672 skb_unlink(skb, queue);
1673 rtl_tx_status(hw, skb, st == 0);
1674 break;
1675 }
1676 }
1677 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1678 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1679 st, sn, retry);
1680 }
1681 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1682
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1683 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1684 {
1685 struct rtl_priv *rtlpriv = rtl_priv(hw);
1686 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1687
1688 if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1689 return true;
1690
1691 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1692 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1693 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1694 tx_report->last_sent_sn, tx_report->last_recv_sn);
1695 return true; /* 3 sec. (timeout) seen as acked */
1696 }
1697
1698 return false;
1699 }
1700
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1701 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1702 {
1703 struct rtl_priv *rtlpriv = rtl_priv(hw);
1704 int i;
1705
1706 for (i = 0; i < wait_ms; i++) {
1707 if (rtl_check_tx_report_acked(hw))
1708 break;
1709 usleep_range(1000, 2000);
1710 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
1711 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1712 }
1713 }
1714
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1715 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1716 struct ieee80211_vif *vif,
1717 enum wireless_mode wirelessmode,
1718 struct ieee80211_tx_queue_params *param)
1719 {
1720 u32 reg = 0;
1721 u8 sifstime = 10;
1722 u8 slottime = 20;
1723
1724 /* AIFS = AIFSN * slot time + SIFS */
1725 switch (wirelessmode) {
1726 case WIRELESS_MODE_A:
1727 case WIRELESS_MODE_N_24G:
1728 case WIRELESS_MODE_N_5G:
1729 case WIRELESS_MODE_AC_5G:
1730 case WIRELESS_MODE_AC_24G:
1731 sifstime = 16;
1732 slottime = 9;
1733 break;
1734 case WIRELESS_MODE_G:
1735 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1736 break;
1737 default:
1738 break;
1739 }
1740
1741 reg |= (param->txop & 0x7FF) << 16;
1742 reg |= (fls(param->cw_max) & 0xF) << 12;
1743 reg |= (fls(param->cw_min) & 0xF) << 8;
1744 reg |= (param->aifs & 0x0F) * slottime + sifstime;
1745
1746 return reg;
1747 }
1748 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1749
1750 /*********************************************************
1751 *
1752 * functions called by core.c
1753 *
1754 *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1755 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1756 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1757 {
1758 struct rtl_priv *rtlpriv = rtl_priv(hw);
1759 struct rtl_tid_data *tid_data;
1760 struct rtl_sta_info *sta_entry = NULL;
1761
1762 if (sta == NULL)
1763 return -EINVAL;
1764
1765 if (unlikely(tid >= MAX_TID_COUNT))
1766 return -EINVAL;
1767
1768 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1769 if (!sta_entry)
1770 return -ENXIO;
1771 tid_data = &sta_entry->tids[tid];
1772
1773 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1774 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1775 *ssn);
1776
1777 tid_data->agg.agg_state = RTL_AGG_START;
1778
1779 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1780 return 0;
1781 }
1782
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1783 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1784 struct ieee80211_sta *sta, u16 tid)
1785 {
1786 struct rtl_priv *rtlpriv = rtl_priv(hw);
1787 struct rtl_sta_info *sta_entry = NULL;
1788
1789 if (sta == NULL)
1790 return -EINVAL;
1791
1792 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1793 "on ra = %pM tid = %d\n", sta->addr, tid);
1794
1795 if (unlikely(tid >= MAX_TID_COUNT))
1796 return -EINVAL;
1797
1798 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1799 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1800
1801 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1802 return 0;
1803 }
1804
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1805 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1806 struct ieee80211_sta *sta, u16 tid)
1807 {
1808 struct rtl_priv *rtlpriv = rtl_priv(hw);
1809 struct rtl_tid_data *tid_data;
1810 struct rtl_sta_info *sta_entry = NULL;
1811 u8 reject_agg;
1812
1813 if (sta == NULL)
1814 return -EINVAL;
1815
1816 if (unlikely(tid >= MAX_TID_COUNT))
1817 return -EINVAL;
1818
1819 if (rtlpriv->cfg->ops->get_btc_status()) {
1820 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1821 &reject_agg,
1822 NULL, NULL);
1823 if (reject_agg)
1824 return -EINVAL;
1825 }
1826
1827 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1828 if (!sta_entry)
1829 return -ENXIO;
1830 tid_data = &sta_entry->tids[tid];
1831
1832 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG,
1833 "on ra = %pM tid = %d\n", sta->addr, tid);
1834
1835 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1836 return 0;
1837 }
1838
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1839 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1840 struct ieee80211_sta *sta, u16 tid)
1841 {
1842 struct rtl_priv *rtlpriv = rtl_priv(hw);
1843 struct rtl_sta_info *sta_entry = NULL;
1844
1845 if (sta == NULL)
1846 return -EINVAL;
1847
1848 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1849 "on ra = %pM tid = %d\n", sta->addr, tid);
1850
1851 if (unlikely(tid >= MAX_TID_COUNT))
1852 return -EINVAL;
1853
1854 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1855 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1856
1857 return 0;
1858 }
1859
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1860 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1861 struct ieee80211_sta *sta, u16 tid)
1862 {
1863 struct rtl_priv *rtlpriv = rtl_priv(hw);
1864 struct rtl_sta_info *sta_entry = NULL;
1865
1866 if (sta == NULL)
1867 return -EINVAL;
1868
1869 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG,
1870 "on ra = %pM tid = %d\n", sta->addr, tid);
1871
1872 if (unlikely(tid >= MAX_TID_COUNT))
1873 return -EINVAL;
1874
1875 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1876 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1877
1878 return 0;
1879 }
1880
rtl_rx_ampdu_apply(struct rtl_priv * rtlpriv)1881 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1882 {
1883 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1884 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1885
1886 if (rtlpriv->cfg->ops->get_btc_status())
1887 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1888 &ctrl_agg_size, &agg_size);
1889
1890 RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1891 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1892 reject_agg, ctrl_agg_size, agg_size);
1893
1894 rtlpriv->hw->max_rx_aggregation_subframes =
1895 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
1896 }
1897 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1898
1899 /*********************************************************
1900 *
1901 * wq & timer callback functions
1902 *
1903 *********************************************************/
1904 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1905 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1906 {
1907 struct rtl_priv *rtlpriv = rtl_priv(hw);
1908 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1909
1910 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1911 return;
1912
1913 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1914 return;
1915
1916 /* check if this really is a beacon */
1917 if (!ieee80211_is_beacon(hdr->frame_control) &&
1918 !ieee80211_is_probe_resp(hdr->frame_control))
1919 return;
1920
1921 /* min. beacon length + FCS_LEN */
1922 if (skb->len <= 40 + FCS_LEN)
1923 return;
1924
1925 /* and only beacons from the associated BSSID, please */
1926 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1927 return;
1928
1929 rtlpriv->link_info.bcn_rx_inperiod++;
1930 }
1931 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1932
rtl_free_entries_from_scan_list(struct ieee80211_hw * hw)1933 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1934 {
1935 struct rtl_priv *rtlpriv = rtl_priv(hw);
1936 struct rtl_bssid_entry *entry, *next;
1937
1938 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1939 list_del(&entry->list);
1940 kfree(entry);
1941 rtlpriv->scan_list.num--;
1942 }
1943 }
1944
rtl_free_entries_from_ack_queue(struct ieee80211_hw * hw,bool chk_timeout)1945 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
1946 bool chk_timeout)
1947 {
1948 struct rtl_priv *rtlpriv = rtl_priv(hw);
1949 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1950 struct sk_buff_head *queue = &tx_report->queue;
1951 struct sk_buff *skb, *tmp;
1952 struct rtlwifi_tx_info *tx_info;
1953
1954 skb_queue_walk_safe(queue, skb, tmp) {
1955 tx_info = rtl_tx_skb_cb_info(skb);
1956 if (chk_timeout &&
1957 time_after(tx_info->send_time + HZ, jiffies))
1958 continue;
1959 skb_unlink(skb, queue);
1960 rtl_tx_status(hw, skb, false);
1961 }
1962 }
1963
rtl_scan_list_expire(struct ieee80211_hw * hw)1964 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1965 {
1966 struct rtl_priv *rtlpriv = rtl_priv(hw);
1967 struct rtl_bssid_entry *entry, *next;
1968 unsigned long flags;
1969
1970 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1971
1972 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1973 /* 180 seconds */
1974 if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1975 continue;
1976
1977 list_del(&entry->list);
1978 rtlpriv->scan_list.num--;
1979
1980 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
1981 "BSSID=%pM is expire in scan list (total=%d)\n",
1982 entry->bssid, rtlpriv->scan_list.num);
1983 kfree(entry);
1984 }
1985
1986 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1987
1988 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1989 }
1990
rtl_collect_scan_list(struct ieee80211_hw * hw,struct sk_buff * skb)1991 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1992 {
1993 struct rtl_priv *rtlpriv = rtl_priv(hw);
1994 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1995 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1996 unsigned long flags;
1997
1998 struct rtl_bssid_entry *entry;
1999 bool entry_found = false;
2000
2001 /* check if it is scanning */
2002 if (!mac->act_scanning)
2003 return;
2004
2005 /* check if this really is a beacon */
2006 if (!ieee80211_is_beacon(hdr->frame_control) &&
2007 !ieee80211_is_probe_resp(hdr->frame_control))
2008 return;
2009
2010 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
2011
2012 list_for_each_entry(entry, &rtlpriv->scan_list.list, list) {
2013 if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) {
2014 list_del_init(&entry->list);
2015 entry_found = true;
2016 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
2017 "Update BSSID=%pM to scan list (total=%d)\n",
2018 hdr->addr3, rtlpriv->scan_list.num);
2019 break;
2020 }
2021 }
2022
2023 if (!entry_found) {
2024 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
2025
2026 if (!entry)
2027 goto label_err;
2028
2029 memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
2030 rtlpriv->scan_list.num++;
2031
2032 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD,
2033 "Add BSSID=%pM to scan list (total=%d)\n",
2034 hdr->addr3, rtlpriv->scan_list.num);
2035 }
2036
2037 entry->age = jiffies;
2038
2039 list_add_tail(&entry->list, &rtlpriv->scan_list.list);
2040
2041 label_err:
2042 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
2043 }
2044 EXPORT_SYMBOL(rtl_collect_scan_list);
2045
rtl_watchdog_wq_callback(void * data)2046 void rtl_watchdog_wq_callback(void *data)
2047 {
2048 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2049 struct rtl_works,
2050 watchdog_wq);
2051 struct ieee80211_hw *hw = rtlworks->hw;
2052 struct rtl_priv *rtlpriv = rtl_priv(hw);
2053 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2054 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2055 bool busytraffic = false;
2056 bool tx_busy_traffic = false;
2057 bool rx_busy_traffic = false;
2058 bool higher_busytraffic = false;
2059 bool higher_busyrxtraffic = false;
2060 u8 idx, tid;
2061 u32 rx_cnt_inp4eriod = 0;
2062 u32 tx_cnt_inp4eriod = 0;
2063 u32 aver_rx_cnt_inperiod = 0;
2064 u32 aver_tx_cnt_inperiod = 0;
2065 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2066 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2067
2068 if (is_hal_stop(rtlhal))
2069 return;
2070
2071 /* <1> Determine if action frame is allowed */
2072 if (mac->link_state > MAC80211_NOLINK) {
2073 if (mac->cnt_after_linked < 20)
2074 mac->cnt_after_linked++;
2075 } else {
2076 mac->cnt_after_linked = 0;
2077 }
2078
2079 /* <2> to check if traffic busy, if
2080 * busytraffic we don't change channel
2081 */
2082 if (mac->link_state >= MAC80211_LINKED) {
2083 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2084 for (idx = 0; idx <= 2; idx++) {
2085 rtlpriv->link_info.num_rx_in4period[idx] =
2086 rtlpriv->link_info.num_rx_in4period[idx + 1];
2087 rtlpriv->link_info.num_tx_in4period[idx] =
2088 rtlpriv->link_info.num_tx_in4period[idx + 1];
2089 }
2090 rtlpriv->link_info.num_rx_in4period[3] =
2091 rtlpriv->link_info.num_rx_inperiod;
2092 rtlpriv->link_info.num_tx_in4period[3] =
2093 rtlpriv->link_info.num_tx_inperiod;
2094 for (idx = 0; idx <= 3; idx++) {
2095 rx_cnt_inp4eriod +=
2096 rtlpriv->link_info.num_rx_in4period[idx];
2097 tx_cnt_inp4eriod +=
2098 rtlpriv->link_info.num_tx_in4period[idx];
2099 }
2100 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2101 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2102
2103 /* (2) check traffic busy */
2104 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2105 busytraffic = true;
2106 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2107 rx_busy_traffic = true;
2108 else
2109 tx_busy_traffic = false;
2110 }
2111
2112 /* Higher Tx/Rx data. */
2113 if (aver_rx_cnt_inperiod > 4000 ||
2114 aver_tx_cnt_inperiod > 4000) {
2115 higher_busytraffic = true;
2116
2117 /* Extremely high Rx data. */
2118 if (aver_rx_cnt_inperiod > 5000)
2119 higher_busyrxtraffic = true;
2120 }
2121
2122 /* check every tid's tx traffic */
2123 for (tid = 0; tid <= 7; tid++) {
2124 for (idx = 0; idx <= 2; idx++)
2125 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2126 rtlpriv->link_info.tidtx_in4period[tid]
2127 [idx + 1];
2128 rtlpriv->link_info.tidtx_in4period[tid][3] =
2129 rtlpriv->link_info.tidtx_inperiod[tid];
2130
2131 for (idx = 0; idx <= 3; idx++)
2132 tidtx_inp4eriod[tid] +=
2133 rtlpriv->link_info.tidtx_in4period[tid][idx];
2134 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2135 if (aver_tidtx_inperiod[tid] > 5000)
2136 rtlpriv->link_info.higher_busytxtraffic[tid] =
2137 true;
2138 else
2139 rtlpriv->link_info.higher_busytxtraffic[tid] =
2140 false;
2141 }
2142
2143 /* PS is controlled by coex. */
2144 if (rtlpriv->cfg->ops->get_btc_status() &&
2145 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2146 goto label_lps_done;
2147
2148 if (rtlpriv->link_info.num_rx_inperiod +
2149 rtlpriv->link_info.num_tx_inperiod > 8 ||
2150 rtlpriv->link_info.num_rx_inperiod > 2)
2151 rtl_lps_leave(hw);
2152 else
2153 rtl_lps_enter(hw);
2154
2155 label_lps_done:
2156 ;
2157 }
2158
2159 for (tid = 0; tid <= 7; tid++)
2160 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2161
2162 rtlpriv->link_info.busytraffic = busytraffic;
2163 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2164 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2165 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2166 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2167
2168 rtlpriv->stats.txbytesunicast_inperiod =
2169 rtlpriv->stats.txbytesunicast -
2170 rtlpriv->stats.txbytesunicast_last;
2171 rtlpriv->stats.rxbytesunicast_inperiod =
2172 rtlpriv->stats.rxbytesunicast -
2173 rtlpriv->stats.rxbytesunicast_last;
2174 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2175 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2176
2177 rtlpriv->stats.txbytesunicast_inperiod_tp =
2178 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2179 1024 / 1024);
2180 rtlpriv->stats.rxbytesunicast_inperiod_tp =
2181 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2182 1024 / 1024);
2183
2184 /* <3> DM */
2185 if (!rtlpriv->cfg->mod_params->disable_watchdog)
2186 rtlpriv->cfg->ops->dm_watchdog(hw);
2187
2188 /* <4> roaming */
2189 if (mac->link_state == MAC80211_LINKED &&
2190 mac->opmode == NL80211_IFTYPE_STATION) {
2191 if ((rtlpriv->link_info.bcn_rx_inperiod +
2192 rtlpriv->link_info.num_rx_inperiod) == 0) {
2193 rtlpriv->link_info.roam_times++;
2194 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
2195 "AP off for %d s\n",
2196 (rtlpriv->link_info.roam_times * 2));
2197
2198 /* if we can't recv beacon for 10s,
2199 * we should reconnect this AP
2200 */
2201 if (rtlpriv->link_info.roam_times >= 5) {
2202 pr_err("AP off, try to reconnect now\n");
2203 rtlpriv->link_info.roam_times = 0;
2204 ieee80211_connection_loss(
2205 rtlpriv->mac80211.vif);
2206 }
2207 } else {
2208 rtlpriv->link_info.roam_times = 0;
2209 }
2210 }
2211
2212 if (rtlpriv->cfg->ops->get_btc_status())
2213 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2214
2215 if (rtlpriv->btcoexist.btc_info.in_4way) {
2216 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2217 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2218 rtlpriv->btcoexist.btc_info.in_4way = false;
2219 }
2220
2221 rtlpriv->link_info.num_rx_inperiod = 0;
2222 rtlpriv->link_info.num_tx_inperiod = 0;
2223 rtlpriv->link_info.bcn_rx_inperiod = 0;
2224
2225 /* <6> scan list */
2226 rtl_scan_list_expire(hw);
2227
2228 /* <7> check ack queue */
2229 rtl_free_entries_from_ack_queue(hw, true);
2230 }
2231
rtl_watch_dog_timer_callback(struct timer_list * t)2232 void rtl_watch_dog_timer_callback(struct timer_list *t)
2233 {
2234 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2235
2236 queue_delayed_work(rtlpriv->works.rtl_wq,
2237 &rtlpriv->works.watchdog_wq, 0);
2238
2239 mod_timer(&rtlpriv->works.watchdog_timer,
2240 jiffies + MSECS(RTL_WATCH_DOG_TIME));
2241 }
2242
rtl_fwevt_wq_callback(void * data)2243 void rtl_fwevt_wq_callback(void *data)
2244 {
2245 struct rtl_works *rtlworks =
2246 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq);
2247 struct ieee80211_hw *hw = rtlworks->hw;
2248 struct rtl_priv *rtlpriv = rtl_priv(hw);
2249
2250 rtlpriv->cfg->ops->c2h_command_handle(hw);
2251 }
2252
2253 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2254 struct sk_buff *skb);
2255
rtl_c2h_fast_cmd(struct ieee80211_hw * hw,struct sk_buff * skb)2256 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2257 {
2258 u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2259
2260 switch (cmd_id) {
2261 case C2H_BT_MP:
2262 return true;
2263 default:
2264 break;
2265 }
2266
2267 return false;
2268 }
2269
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,struct sk_buff * skb)2270 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2271 {
2272 struct rtl_priv *rtlpriv = rtl_priv(hw);
2273 unsigned long flags;
2274
2275 if (rtl_c2h_fast_cmd(hw, skb)) {
2276 rtl_c2h_content_parsing(hw, skb);
2277 kfree_skb(skb);
2278 return;
2279 }
2280
2281 /* enqueue */
2282 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2283
2284 __skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2285
2286 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2287
2288 /* wake up wq */
2289 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2290 }
2291 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2292
rtl_c2h_content_parsing(struct ieee80211_hw * hw,struct sk_buff * skb)2293 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2294 struct sk_buff *skb)
2295 {
2296 struct rtl_priv *rtlpriv = rtl_priv(hw);
2297 struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2298 const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2299 u8 cmd_id, cmd_len;
2300 u8 *cmd_buf = NULL;
2301
2302 cmd_id = GET_C2H_CMD_ID(skb->data);
2303 cmd_len = skb->len - C2H_DATA_OFFSET;
2304 cmd_buf = GET_C2H_DATA_PTR(skb->data);
2305
2306 switch (cmd_id) {
2307 case C2H_DBG:
2308 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2309 break;
2310 case C2H_TXBF:
2311 RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
2312 "[C2H], C2H_TXBF!!\n");
2313 break;
2314 case C2H_TX_REPORT:
2315 rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2316 break;
2317 case C2H_RA_RPT:
2318 if (hal_ops->c2h_ra_report_handler)
2319 hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2320 break;
2321 case C2H_BT_INFO:
2322 RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
2323 "[C2H], C2H_BT_INFO!!\n");
2324 if (rtlpriv->cfg->ops->get_btc_status())
2325 btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2326 break;
2327 case C2H_BT_MP:
2328 RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
2329 "[C2H], C2H_BT_MP!!\n");
2330 if (rtlpriv->cfg->ops->get_btc_status())
2331 btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2332 break;
2333 default:
2334 RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
2335 "[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2336 break;
2337 }
2338 }
2339
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2340 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2341 {
2342 struct rtl_priv *rtlpriv = rtl_priv(hw);
2343 struct sk_buff *skb;
2344 unsigned long flags;
2345 int i;
2346
2347 for (i = 0; i < 200; i++) {
2348 /* dequeue a task */
2349 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2350
2351 skb = __skb_dequeue(&rtlpriv->c2hcmd_queue);
2352
2353 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2354
2355 /* do it */
2356 if (!skb)
2357 break;
2358
2359 RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2360 *((u8 *)skb->cb));
2361 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2362 "C2H data: ", skb->data, skb->len);
2363
2364 if (exec)
2365 rtl_c2h_content_parsing(hw, skb);
2366
2367 /* free */
2368 dev_kfree_skb_any(skb);
2369 }
2370 }
2371
rtl_c2hcmd_wq_callback(void * data)2372 void rtl_c2hcmd_wq_callback(void *data)
2373 {
2374 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
2375 struct rtl_works,
2376 c2hcmd_wq);
2377 struct ieee80211_hw *hw = rtlworks->hw;
2378
2379 rtl_c2hcmd_launcher(hw, 1);
2380 }
2381
rtl_easy_concurrent_retrytimer_callback(struct timer_list * t)2382 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2383 {
2384 struct rtl_priv *rtlpriv =
2385 from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2386 struct ieee80211_hw *hw = rtlpriv->hw;
2387 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2388
2389 if (buddy_priv == NULL)
2390 return;
2391
2392 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2393 }
2394
2395 /*********************************************************
2396 *
2397 * frame process functions
2398 *
2399 *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2400 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2401 {
2402 struct ieee80211_mgmt *mgmt = (void *)data;
2403 u8 *pos, *end;
2404
2405 pos = (u8 *)mgmt->u.beacon.variable;
2406 end = data + len;
2407 while (pos < end) {
2408 if (pos + 2 + pos[1] > end)
2409 return NULL;
2410
2411 if (pos[0] == ie)
2412 return pos;
2413
2414 pos += 2 + pos[1];
2415 }
2416 return NULL;
2417 }
2418
2419 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2420 /* 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)2421 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2422 enum ieee80211_smps_mode smps,
2423 u8 *da, u8 *bssid)
2424 {
2425 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2426 struct sk_buff *skb;
2427 struct ieee80211_mgmt *action_frame;
2428
2429 /* 27 = header + category + action + smps mode */
2430 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2431 if (!skb)
2432 return NULL;
2433
2434 skb_reserve(skb, hw->extra_tx_headroom);
2435 action_frame = skb_put_zero(skb, 27);
2436 memcpy(action_frame->da, da, ETH_ALEN);
2437 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2438 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2439 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2440 IEEE80211_STYPE_ACTION);
2441 action_frame->u.action.category = WLAN_CATEGORY_HT;
2442 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2443 switch (smps) {
2444 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2445 case IEEE80211_SMPS_NUM_MODES:/* 4 */
2446 WARN_ON(1);
2447 /* fall through */
2448 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2449 action_frame->u.action.u.ht_smps.smps_control =
2450 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2451 break;
2452 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2453 action_frame->u.action.u.ht_smps.smps_control =
2454 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2455 break;
2456 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2457 action_frame->u.action.u.ht_smps.smps_control =
2458 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2459 break;
2460 }
2461
2462 return skb;
2463 }
2464
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2465 int rtl_send_smps_action(struct ieee80211_hw *hw,
2466 struct ieee80211_sta *sta,
2467 enum ieee80211_smps_mode smps)
2468 {
2469 struct rtl_priv *rtlpriv = rtl_priv(hw);
2470 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2471 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2472 struct sk_buff *skb = NULL;
2473 struct rtl_tcb_desc tcb_desc;
2474 u8 bssid[ETH_ALEN] = {0};
2475
2476 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2477
2478 if (rtlpriv->mac80211.act_scanning)
2479 goto err_free;
2480
2481 if (!sta)
2482 goto err_free;
2483
2484 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2485 goto err_free;
2486
2487 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2488 goto err_free;
2489
2490 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2491 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2492 else
2493 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2494
2495 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2496 /* this is a type = mgmt * stype = action frame */
2497 if (skb) {
2498 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2499 struct rtl_sta_info *sta_entry =
2500 (struct rtl_sta_info *) sta->drv_priv;
2501 sta_entry->mimo_ps = smps;
2502 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2503
2504 info->control.rates[0].idx = 0;
2505 info->band = hw->conf.chandef.chan->band;
2506 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2507 }
2508 return 1;
2509
2510 err_free:
2511 return 0;
2512 }
2513 EXPORT_SYMBOL(rtl_send_smps_action);
2514
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2515 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2516 {
2517 struct rtl_priv *rtlpriv = rtl_priv(hw);
2518 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2519 enum io_type iotype;
2520
2521 if (!is_hal_stop(rtlhal)) {
2522 switch (operation) {
2523 case SCAN_OPT_BACKUP:
2524 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2525 rtlpriv->cfg->ops->set_hw_reg(hw,
2526 HW_VAR_IO_CMD,
2527 (u8 *)&iotype);
2528 break;
2529 case SCAN_OPT_RESTORE:
2530 iotype = IO_CMD_RESUME_DM_BY_SCAN;
2531 rtlpriv->cfg->ops->set_hw_reg(hw,
2532 HW_VAR_IO_CMD,
2533 (u8 *)&iotype);
2534 break;
2535 default:
2536 pr_err("Unknown Scan Backup operation.\n");
2537 break;
2538 }
2539 }
2540 }
2541 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2542
2543 /* because mac80211 have issues when can receive del ba
2544 * so here we just make a fake del_ba if we receive a ba_req
2545 * but rx_agg was opened to let mac80211 release some ba
2546 * related resources, so please this del_ba for tx
2547 */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2548 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2549 u8 *sa, u8 *bssid, u16 tid)
2550 {
2551 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2552 struct sk_buff *skb;
2553 struct ieee80211_mgmt *action_frame;
2554 u16 params;
2555
2556 /* 27 = header + category + action + smps mode */
2557 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2558 if (!skb)
2559 return NULL;
2560
2561 skb_reserve(skb, hw->extra_tx_headroom);
2562 action_frame = skb_put_zero(skb, 34);
2563 memcpy(action_frame->sa, sa, ETH_ALEN);
2564 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2565 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2566 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2567 IEEE80211_STYPE_ACTION);
2568 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2569 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2570 params = (u16)(1 << 11); /* bit 11 initiator */
2571 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2572
2573 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2574 action_frame->u.action.u.delba.reason_code =
2575 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2576
2577 return skb;
2578 }
2579
2580 /*********************************************************
2581 *
2582 * IOT functions
2583 *
2584 *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2585 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2586 struct octet_string vendor_ie)
2587 {
2588 struct rtl_priv *rtlpriv = rtl_priv(hw);
2589 bool matched = false;
2590 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2591 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2592 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2593 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2594 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2595 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2596 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2597 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2598
2599 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2600 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2601 rtlpriv->mac80211.vendor = PEER_ATH;
2602 matched = true;
2603 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2604 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2605 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2606 rtlpriv->mac80211.vendor = PEER_BROAD;
2607 matched = true;
2608 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2609 rtlpriv->mac80211.vendor = PEER_RAL;
2610 matched = true;
2611 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2612 rtlpriv->mac80211.vendor = PEER_CISCO;
2613 matched = true;
2614 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2615 rtlpriv->mac80211.vendor = PEER_MARV;
2616 matched = true;
2617 }
2618
2619 return matched;
2620 }
2621
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2622 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2623 unsigned int len)
2624 {
2625 struct ieee80211_mgmt *mgmt = (void *)data;
2626 struct octet_string vendor_ie;
2627 u8 *pos, *end;
2628
2629 pos = (u8 *)mgmt->u.beacon.variable;
2630 end = data + len;
2631 while (pos < end) {
2632 if (pos[0] == 221) {
2633 vendor_ie.length = pos[1];
2634 vendor_ie.octet = &pos[2];
2635 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2636 return true;
2637 }
2638
2639 if (pos + 2 + pos[1] > end)
2640 return false;
2641
2642 pos += 2 + pos[1];
2643 }
2644 return false;
2645 }
2646
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2647 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2648 {
2649 struct rtl_priv *rtlpriv = rtl_priv(hw);
2650 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2651 struct ieee80211_hdr *hdr = (void *)data;
2652 u32 vendor = PEER_UNKNOWN;
2653
2654 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2655 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2656 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2657 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2658 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2659 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2660 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2661 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2662 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2663 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2664 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2665 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2666 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2667 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2668 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2669 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2670
2671 if (mac->opmode != NL80211_IFTYPE_STATION)
2672 return;
2673
2674 if (mac->link_state == MAC80211_NOLINK) {
2675 mac->vendor = PEER_UNKNOWN;
2676 return;
2677 }
2678
2679 if (mac->cnt_after_linked > 2)
2680 return;
2681
2682 /* check if this really is a beacon */
2683 if (!ieee80211_is_beacon(hdr->frame_control))
2684 return;
2685
2686 /* min. beacon length + FCS_LEN */
2687 if (len <= 40 + FCS_LEN)
2688 return;
2689
2690 /* and only beacons from the associated BSSID, please */
2691 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2692 return;
2693
2694 if (rtl_find_221_ie(hw, data, len))
2695 vendor = mac->vendor;
2696
2697 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2698 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2699 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2700 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2701 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2702 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2703 vendor == PEER_ATH) {
2704 vendor = PEER_ATH;
2705 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2706 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2707 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2708 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2709 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2710 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2711 vendor == PEER_RAL) {
2712 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2713 vendor = PEER_RAL;
2714 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2715 vendor == PEER_CISCO) {
2716 vendor = PEER_CISCO;
2717 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2718 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2719 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2720 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2721 vendor == PEER_BROAD) {
2722 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2723 vendor = PEER_BROAD;
2724 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2725 vendor == PEER_MARV) {
2726 vendor = PEER_MARV;
2727 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2728 }
2729
2730 mac->vendor = vendor;
2731 }
2732 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2733
2734 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2735 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2736 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2737 MODULE_LICENSE("GPL");
2738 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2739
2740 struct rtl_global_var rtl_global_var = {};
2741 EXPORT_SYMBOL_GPL(rtl_global_var);
2742
rtl_core_module_init(void)2743 static int __init rtl_core_module_init(void)
2744 {
2745 BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2746 BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2747 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2748 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2749
2750 if (rtl_rate_control_register())
2751 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2752
2753 /* add debugfs */
2754 rtl_debugfs_add_topdir();
2755
2756 /* init some global vars */
2757 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2758 spin_lock_init(&rtl_global_var.glb_list_lock);
2759
2760 return 0;
2761 }
2762
rtl_core_module_exit(void)2763 static void __exit rtl_core_module_exit(void)
2764 {
2765 /*RC*/
2766 rtl_rate_control_unregister();
2767
2768 /* remove debugfs */
2769 rtl_debugfs_remove_topdir();
2770 }
2771
2772 module_init(rtl_core_module_init);
2773 module_exit(rtl_core_module_exit);
2774
