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 rtl_dbg(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 rtl_dbg(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
439 static void rtl_watchdog_wq_callback(struct work_struct *work);
440 static void rtl_fwevt_wq_callback(struct work_struct *work);
441 static void rtl_c2hcmd_wq_callback(struct work_struct *work);
442
_rtl_init_deferred_work(struct ieee80211_hw * hw)443 static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
444 {
445 struct rtl_priv *rtlpriv = rtl_priv(hw);
446 struct workqueue_struct *wq;
447
448 wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
449 if (!wq)
450 return -ENOMEM;
451
452 /* <1> timer */
453 timer_setup(&rtlpriv->works.watchdog_timer,
454 rtl_watch_dog_timer_callback, 0);
455
456 /* <2> work queue */
457 rtlpriv->works.hw = hw;
458 rtlpriv->works.rtl_wq = wq;
459
460 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
461 rtl_watchdog_wq_callback);
462 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
463 rtl_ips_nic_off_wq_callback);
464 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback);
465 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq,
466 rtl_swlps_rfon_wq_callback);
467 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
468 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
469 return 0;
470 }
471
rtl_deinit_deferred_work(struct ieee80211_hw * hw,bool ips_wq)472 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
473 {
474 struct rtl_priv *rtlpriv = rtl_priv(hw);
475
476 del_timer_sync(&rtlpriv->works.watchdog_timer);
477
478 cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
479 if (ips_wq)
480 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
481 else
482 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
483 cancel_delayed_work_sync(&rtlpriv->works.ps_work);
484 cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
485 cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
486 cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
487 }
488 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
489
rtl_init_rfkill(struct ieee80211_hw * hw)490 void rtl_init_rfkill(struct ieee80211_hw *hw)
491 {
492 struct rtl_priv *rtlpriv = rtl_priv(hw);
493
494 bool radio_state;
495 bool blocked;
496 u8 valid = 0;
497
498 /*set init state to on */
499 rtlpriv->rfkill.rfkill_state = true;
500 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
501
502 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
503
504 if (valid) {
505 pr_info("rtlwifi: wireless switch is %s\n",
506 rtlpriv->rfkill.rfkill_state ? "on" : "off");
507
508 rtlpriv->rfkill.rfkill_state = radio_state;
509
510 blocked = rtlpriv->rfkill.rfkill_state != 1;
511 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
512 }
513
514 wiphy_rfkill_start_polling(hw->wiphy);
515 }
516 EXPORT_SYMBOL(rtl_init_rfkill);
517
rtl_deinit_rfkill(struct ieee80211_hw * hw)518 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
519 {
520 wiphy_rfkill_stop_polling(hw->wiphy);
521 }
522 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
523
rtl_init_core(struct ieee80211_hw * hw)524 int rtl_init_core(struct ieee80211_hw *hw)
525 {
526 struct rtl_priv *rtlpriv = rtl_priv(hw);
527 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
528
529 /* <1> init mac80211 */
530 _rtl_init_mac80211(hw);
531 rtlmac->hw = hw;
532
533 /* <2> rate control register */
534 hw->rate_control_algorithm = "rtl_rc";
535
536 /*
537 * <3> init CRDA must come after init
538 * mac80211 hw in _rtl_init_mac80211.
539 */
540 if (rtl_regd_init(hw, rtl_reg_notifier)) {
541 pr_err("REGD init failed\n");
542 return 1;
543 }
544
545 /* <4> locks */
546 mutex_init(&rtlpriv->locks.conf_mutex);
547 mutex_init(&rtlpriv->locks.ips_mutex);
548 mutex_init(&rtlpriv->locks.lps_mutex);
549 spin_lock_init(&rtlpriv->locks.irq_th_lock);
550 spin_lock_init(&rtlpriv->locks.h2c_lock);
551 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
552 spin_lock_init(&rtlpriv->locks.rf_lock);
553 spin_lock_init(&rtlpriv->locks.waitq_lock);
554 spin_lock_init(&rtlpriv->locks.entry_list_lock);
555 spin_lock_init(&rtlpriv->locks.scan_list_lock);
556 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock);
557 spin_lock_init(&rtlpriv->locks.fw_ps_lock);
558 spin_lock_init(&rtlpriv->locks.iqk_lock);
559 /* <5> init list */
560 INIT_LIST_HEAD(&rtlpriv->entry_list);
561 INIT_LIST_HEAD(&rtlpriv->scan_list.list);
562 skb_queue_head_init(&rtlpriv->tx_report.queue);
563 skb_queue_head_init(&rtlpriv->c2hcmd_queue);
564
565 rtlmac->link_state = MAC80211_NOLINK;
566
567 /* <6> init deferred work */
568 return _rtl_init_deferred_work(hw);
569 }
570 EXPORT_SYMBOL_GPL(rtl_init_core);
571
572 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
573 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
574 bool timeout);
575
rtl_deinit_core(struct ieee80211_hw * hw)576 void rtl_deinit_core(struct ieee80211_hw *hw)
577 {
578 struct rtl_priv *rtlpriv = rtl_priv(hw);
579
580 rtl_c2hcmd_launcher(hw, 0);
581 rtl_free_entries_from_scan_list(hw);
582 rtl_free_entries_from_ack_queue(hw, false);
583 if (rtlpriv->works.rtl_wq) {
584 destroy_workqueue(rtlpriv->works.rtl_wq);
585 rtlpriv->works.rtl_wq = NULL;
586 }
587 }
588 EXPORT_SYMBOL_GPL(rtl_deinit_core);
589
rtl_init_rx_config(struct ieee80211_hw * hw)590 void rtl_init_rx_config(struct ieee80211_hw *hw)
591 {
592 struct rtl_priv *rtlpriv = rtl_priv(hw);
593 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
594
595 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
596 }
597 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
598
599 /*********************************************************
600 *
601 * tx information functions
602 *
603 *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)604 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
605 struct rtl_tcb_desc *tcb_desc,
606 struct ieee80211_tx_info *info)
607 {
608 struct rtl_priv *rtlpriv = rtl_priv(hw);
609 u8 rate_flag = info->control.rates[0].flags;
610
611 tcb_desc->use_shortpreamble = false;
612
613 /* 1M can only use Long Preamble. 11B spec */
614 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
615 return;
616 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
617 tcb_desc->use_shortpreamble = true;
618
619 return;
620 }
621
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)622 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
623 struct ieee80211_sta *sta,
624 struct rtl_tcb_desc *tcb_desc,
625 struct ieee80211_tx_info *info)
626 {
627 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
628 u8 rate_flag = info->control.rates[0].flags;
629 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
630 u8 sgi_80 = 0, bw_80 = 0;
631
632 tcb_desc->use_shortgi = false;
633
634 if (sta == NULL)
635 return;
636
637 sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
638 sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
639 sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
640
641 if (!sta->deflink.ht_cap.ht_supported &&
642 !sta->deflink.vht_cap.vht_supported)
643 return;
644
645 if (!sgi_40 && !sgi_20)
646 return;
647
648 if (mac->opmode == NL80211_IFTYPE_STATION) {
649 bw_40 = mac->bw_40;
650 bw_80 = mac->bw_80;
651 } else if (mac->opmode == NL80211_IFTYPE_AP ||
652 mac->opmode == NL80211_IFTYPE_ADHOC ||
653 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
654 bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
655 bw_80 = sta->deflink.vht_cap.vht_supported;
656 }
657
658 if (bw_80) {
659 if (sgi_80)
660 tcb_desc->use_shortgi = true;
661 else
662 tcb_desc->use_shortgi = false;
663 } else {
664 if (bw_40 && sgi_40)
665 tcb_desc->use_shortgi = true;
666 else if (!bw_40 && sgi_20)
667 tcb_desc->use_shortgi = true;
668 }
669
670 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
671 tcb_desc->use_shortgi = false;
672 }
673
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)674 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
675 struct rtl_tcb_desc *tcb_desc,
676 struct ieee80211_tx_info *info)
677 {
678 struct rtl_priv *rtlpriv = rtl_priv(hw);
679 u8 rate_flag = info->control.rates[0].flags;
680
681 /* Common Settings */
682 tcb_desc->rts_stbc = false;
683 tcb_desc->cts_enable = false;
684 tcb_desc->rts_sc = 0;
685 tcb_desc->rts_bw = false;
686 tcb_desc->rts_use_shortpreamble = false;
687 tcb_desc->rts_use_shortgi = false;
688
689 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
690 /* Use CTS-to-SELF in protection mode. */
691 tcb_desc->rts_enable = true;
692 tcb_desc->cts_enable = true;
693 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
694 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
695 /* Use RTS-CTS in protection mode. */
696 tcb_desc->rts_enable = true;
697 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
698 }
699 }
700
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)701 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
702 enum wireless_mode wirelessmode)
703 {
704 struct rtl_priv *rtlpriv = rtl_priv(hw);
705 struct rtl_phy *rtlphy = &rtlpriv->phy;
706 u8 ret = 0;
707
708 switch (rate_index) {
709 case RATR_INX_WIRELESS_NGB:
710 if (rtlphy->rf_type == RF_1T1R)
711 ret = RATEID_IDX_BGN_40M_1SS;
712 else
713 ret = RATEID_IDX_BGN_40M_2SS;
714 ; break;
715 case RATR_INX_WIRELESS_N:
716 case RATR_INX_WIRELESS_NG:
717 if (rtlphy->rf_type == RF_1T1R)
718 ret = RATEID_IDX_GN_N1SS;
719 else
720 ret = RATEID_IDX_GN_N2SS;
721 ; break;
722 case RATR_INX_WIRELESS_NB:
723 if (rtlphy->rf_type == RF_1T1R)
724 ret = RATEID_IDX_BGN_20M_1SS_BN;
725 else
726 ret = RATEID_IDX_BGN_20M_2SS_BN;
727 ; break;
728 case RATR_INX_WIRELESS_GB:
729 ret = RATEID_IDX_BG;
730 break;
731 case RATR_INX_WIRELESS_G:
732 ret = RATEID_IDX_G;
733 break;
734 case RATR_INX_WIRELESS_B:
735 ret = RATEID_IDX_B;
736 break;
737 case RATR_INX_WIRELESS_MC:
738 if (wirelessmode == WIRELESS_MODE_B ||
739 wirelessmode == WIRELESS_MODE_G ||
740 wirelessmode == WIRELESS_MODE_N_24G ||
741 wirelessmode == WIRELESS_MODE_AC_24G)
742 ret = RATEID_IDX_BG;
743 else
744 ret = RATEID_IDX_G;
745 break;
746 case RATR_INX_WIRELESS_AC_5N:
747 if (rtlphy->rf_type == RF_1T1R)
748 ret = RATEID_IDX_VHT_1SS;
749 else
750 ret = RATEID_IDX_VHT_2SS;
751 break;
752 case RATR_INX_WIRELESS_AC_24N:
753 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
754 if (rtlphy->rf_type == RF_1T1R)
755 ret = RATEID_IDX_VHT_1SS;
756 else
757 ret = RATEID_IDX_VHT_2SS;
758 } else {
759 if (rtlphy->rf_type == RF_1T1R)
760 ret = RATEID_IDX_MIX1;
761 else
762 ret = RATEID_IDX_MIX2;
763 }
764 break;
765 default:
766 ret = RATEID_IDX_BGN_40M_2SS;
767 break;
768 }
769 return ret;
770 }
771 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
772
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)773 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
774 struct ieee80211_sta *sta,
775 struct rtl_tcb_desc *tcb_desc)
776 {
777 #define SET_RATE_ID(rate_id) \
778 ({typeof(rate_id) _id = rate_id; \
779 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
780 rtl_mrate_idx_to_arfr_id(hw, _id, \
781 (sta_entry ? sta_entry->wireless_mode : \
782 WIRELESS_MODE_G)) : \
783 _id); })
784
785 struct rtl_priv *rtlpriv = rtl_priv(hw);
786 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
787 struct rtl_sta_info *sta_entry = NULL;
788 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
789
790 if (sta) {
791 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
792 ratr_index = sta_entry->ratr_index;
793 }
794 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
795 if (mac->opmode == NL80211_IFTYPE_STATION) {
796 tcb_desc->ratr_index = 0;
797 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
798 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
799 if (tcb_desc->multicast || tcb_desc->broadcast) {
800 tcb_desc->hw_rate =
801 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
802 tcb_desc->use_driver_rate = 1;
803 tcb_desc->ratr_index =
804 SET_RATE_ID(RATR_INX_WIRELESS_MC);
805 } else {
806 tcb_desc->ratr_index = ratr_index;
807 }
808 } else if (mac->opmode == NL80211_IFTYPE_AP) {
809 tcb_desc->ratr_index = ratr_index;
810 }
811 }
812
813 if (rtlpriv->dm.useramask) {
814 tcb_desc->ratr_index = ratr_index;
815 /* TODO we will differentiate adhoc and station future */
816 if (mac->opmode == NL80211_IFTYPE_STATION ||
817 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
818 tcb_desc->mac_id = 0;
819
820 if (sta &&
821 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
822 ; /* use sta_entry->ratr_index */
823 else if (mac->mode == WIRELESS_MODE_AC_5G)
824 tcb_desc->ratr_index =
825 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
826 else if (mac->mode == WIRELESS_MODE_AC_24G)
827 tcb_desc->ratr_index =
828 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
829 else if (mac->mode == WIRELESS_MODE_N_24G)
830 tcb_desc->ratr_index =
831 SET_RATE_ID(RATR_INX_WIRELESS_NGB);
832 else if (mac->mode == WIRELESS_MODE_N_5G)
833 tcb_desc->ratr_index =
834 SET_RATE_ID(RATR_INX_WIRELESS_NG);
835 else if (mac->mode & WIRELESS_MODE_G)
836 tcb_desc->ratr_index =
837 SET_RATE_ID(RATR_INX_WIRELESS_GB);
838 else if (mac->mode & WIRELESS_MODE_B)
839 tcb_desc->ratr_index =
840 SET_RATE_ID(RATR_INX_WIRELESS_B);
841 else if (mac->mode & WIRELESS_MODE_A)
842 tcb_desc->ratr_index =
843 SET_RATE_ID(RATR_INX_WIRELESS_G);
844
845 } else if (mac->opmode == NL80211_IFTYPE_AP ||
846 mac->opmode == NL80211_IFTYPE_ADHOC) {
847 if (NULL != sta) {
848 if (sta->aid > 0)
849 tcb_desc->mac_id = sta->aid + 1;
850 else
851 tcb_desc->mac_id = 1;
852 } else {
853 tcb_desc->mac_id = 0;
854 }
855 }
856 }
857 #undef SET_RATE_ID
858 }
859
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)860 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
861 struct ieee80211_sta *sta,
862 struct rtl_tcb_desc *tcb_desc)
863 {
864 struct rtl_priv *rtlpriv = rtl_priv(hw);
865 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
866
867 tcb_desc->packet_bw = false;
868 if (!sta)
869 return;
870 if (mac->opmode == NL80211_IFTYPE_AP ||
871 mac->opmode == NL80211_IFTYPE_ADHOC ||
872 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
873 if (!(sta->deflink.ht_cap.ht_supported) ||
874 !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
875 return;
876 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
877 if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported))
878 return;
879 }
880 if (tcb_desc->multicast || tcb_desc->broadcast)
881 return;
882
883 /*use legency rate, shall use 20MHz */
884 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
885 return;
886
887 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
888
889 if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
890 if (mac->opmode == NL80211_IFTYPE_AP ||
891 mac->opmode == NL80211_IFTYPE_ADHOC ||
892 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
893 if (!(sta->deflink.vht_cap.vht_supported))
894 return;
895 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
896 if (!mac->bw_80 ||
897 !(sta->deflink.vht_cap.vht_supported))
898 return;
899 }
900 if (tcb_desc->hw_rate <=
901 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
902 return;
903 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
904 }
905 }
906
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)907 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
908 struct ieee80211_sta *sta)
909 {
910 struct rtl_priv *rtlpriv = rtl_priv(hw);
911 struct rtl_phy *rtlphy = &(rtlpriv->phy);
912 u8 hw_rate;
913 u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map);
914
915 if ((get_rf_type(rtlphy) == RF_2T2R) &&
916 (tx_mcs_map & 0x000c) != 0x000c) {
917 if ((tx_mcs_map & 0x000c) >> 2 ==
918 IEEE80211_VHT_MCS_SUPPORT_0_7)
919 hw_rate =
920 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
921 else if ((tx_mcs_map & 0x000c) >> 2 ==
922 IEEE80211_VHT_MCS_SUPPORT_0_8)
923 hw_rate =
924 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
925 else
926 hw_rate =
927 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
928 } else {
929 if ((tx_mcs_map & 0x0003) ==
930 IEEE80211_VHT_MCS_SUPPORT_0_7)
931 hw_rate =
932 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
933 else if ((tx_mcs_map & 0x0003) ==
934 IEEE80211_VHT_MCS_SUPPORT_0_8)
935 hw_rate =
936 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
937 else
938 hw_rate =
939 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
940 }
941
942 return hw_rate;
943 }
944
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)945 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
946 struct ieee80211_sta *sta)
947 {
948 struct rtl_priv *rtlpriv = rtl_priv(hw);
949 struct rtl_phy *rtlphy = &rtlpriv->phy;
950 u8 hw_rate;
951
952 if (get_rf_type(rtlphy) == RF_2T2R &&
953 sta->deflink.ht_cap.mcs.rx_mask[1] != 0)
954 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
955 else
956 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
957
958 return hw_rate;
959 }
960
961 /* mac80211's rate_idx is like this:
962 *
963 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
964 *
965 * B/G rate:
966 * (rx_status->flag & RX_FLAG_HT) = 0,
967 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
968 *
969 * N rate:
970 * (rx_status->flag & RX_FLAG_HT) = 1,
971 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
972 *
973 * 5G band:rx_status->band == NL80211_BAND_5GHZ
974 * A rate:
975 * (rx_status->flag & RX_FLAG_HT) = 0,
976 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
977 *
978 * N rate:
979 * (rx_status->flag & RX_FLAG_HT) = 1,
980 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
981 *
982 * VHT rates:
983 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
984 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
985 */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)986 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
987 u8 desc_rate)
988 {
989 int rate_idx;
990
991 if (isvht) {
992 switch (desc_rate) {
993 case DESC_RATEVHT1SS_MCS0:
994 rate_idx = 0;
995 break;
996 case DESC_RATEVHT1SS_MCS1:
997 rate_idx = 1;
998 break;
999 case DESC_RATEVHT1SS_MCS2:
1000 rate_idx = 2;
1001 break;
1002 case DESC_RATEVHT1SS_MCS3:
1003 rate_idx = 3;
1004 break;
1005 case DESC_RATEVHT1SS_MCS4:
1006 rate_idx = 4;
1007 break;
1008 case DESC_RATEVHT1SS_MCS5:
1009 rate_idx = 5;
1010 break;
1011 case DESC_RATEVHT1SS_MCS6:
1012 rate_idx = 6;
1013 break;
1014 case DESC_RATEVHT1SS_MCS7:
1015 rate_idx = 7;
1016 break;
1017 case DESC_RATEVHT1SS_MCS8:
1018 rate_idx = 8;
1019 break;
1020 case DESC_RATEVHT1SS_MCS9:
1021 rate_idx = 9;
1022 break;
1023 case DESC_RATEVHT2SS_MCS0:
1024 rate_idx = 0;
1025 break;
1026 case DESC_RATEVHT2SS_MCS1:
1027 rate_idx = 1;
1028 break;
1029 case DESC_RATEVHT2SS_MCS2:
1030 rate_idx = 2;
1031 break;
1032 case DESC_RATEVHT2SS_MCS3:
1033 rate_idx = 3;
1034 break;
1035 case DESC_RATEVHT2SS_MCS4:
1036 rate_idx = 4;
1037 break;
1038 case DESC_RATEVHT2SS_MCS5:
1039 rate_idx = 5;
1040 break;
1041 case DESC_RATEVHT2SS_MCS6:
1042 rate_idx = 6;
1043 break;
1044 case DESC_RATEVHT2SS_MCS7:
1045 rate_idx = 7;
1046 break;
1047 case DESC_RATEVHT2SS_MCS8:
1048 rate_idx = 8;
1049 break;
1050 case DESC_RATEVHT2SS_MCS9:
1051 rate_idx = 9;
1052 break;
1053 default:
1054 rate_idx = 0;
1055 break;
1056 }
1057 return rate_idx;
1058 }
1059 if (false == isht) {
1060 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1061 switch (desc_rate) {
1062 case DESC_RATE1M:
1063 rate_idx = 0;
1064 break;
1065 case DESC_RATE2M:
1066 rate_idx = 1;
1067 break;
1068 case DESC_RATE5_5M:
1069 rate_idx = 2;
1070 break;
1071 case DESC_RATE11M:
1072 rate_idx = 3;
1073 break;
1074 case DESC_RATE6M:
1075 rate_idx = 4;
1076 break;
1077 case DESC_RATE9M:
1078 rate_idx = 5;
1079 break;
1080 case DESC_RATE12M:
1081 rate_idx = 6;
1082 break;
1083 case DESC_RATE18M:
1084 rate_idx = 7;
1085 break;
1086 case DESC_RATE24M:
1087 rate_idx = 8;
1088 break;
1089 case DESC_RATE36M:
1090 rate_idx = 9;
1091 break;
1092 case DESC_RATE48M:
1093 rate_idx = 10;
1094 break;
1095 case DESC_RATE54M:
1096 rate_idx = 11;
1097 break;
1098 default:
1099 rate_idx = 0;
1100 break;
1101 }
1102 } else {
1103 switch (desc_rate) {
1104 case DESC_RATE6M:
1105 rate_idx = 0;
1106 break;
1107 case DESC_RATE9M:
1108 rate_idx = 1;
1109 break;
1110 case DESC_RATE12M:
1111 rate_idx = 2;
1112 break;
1113 case DESC_RATE18M:
1114 rate_idx = 3;
1115 break;
1116 case DESC_RATE24M:
1117 rate_idx = 4;
1118 break;
1119 case DESC_RATE36M:
1120 rate_idx = 5;
1121 break;
1122 case DESC_RATE48M:
1123 rate_idx = 6;
1124 break;
1125 case DESC_RATE54M:
1126 rate_idx = 7;
1127 break;
1128 default:
1129 rate_idx = 0;
1130 break;
1131 }
1132 }
1133 } else {
1134 switch (desc_rate) {
1135 case DESC_RATEMCS0:
1136 rate_idx = 0;
1137 break;
1138 case DESC_RATEMCS1:
1139 rate_idx = 1;
1140 break;
1141 case DESC_RATEMCS2:
1142 rate_idx = 2;
1143 break;
1144 case DESC_RATEMCS3:
1145 rate_idx = 3;
1146 break;
1147 case DESC_RATEMCS4:
1148 rate_idx = 4;
1149 break;
1150 case DESC_RATEMCS5:
1151 rate_idx = 5;
1152 break;
1153 case DESC_RATEMCS6:
1154 rate_idx = 6;
1155 break;
1156 case DESC_RATEMCS7:
1157 rate_idx = 7;
1158 break;
1159 case DESC_RATEMCS8:
1160 rate_idx = 8;
1161 break;
1162 case DESC_RATEMCS9:
1163 rate_idx = 9;
1164 break;
1165 case DESC_RATEMCS10:
1166 rate_idx = 10;
1167 break;
1168 case DESC_RATEMCS11:
1169 rate_idx = 11;
1170 break;
1171 case DESC_RATEMCS12:
1172 rate_idx = 12;
1173 break;
1174 case DESC_RATEMCS13:
1175 rate_idx = 13;
1176 break;
1177 case DESC_RATEMCS14:
1178 rate_idx = 14;
1179 break;
1180 case DESC_RATEMCS15:
1181 rate_idx = 15;
1182 break;
1183 default:
1184 rate_idx = 0;
1185 break;
1186 }
1187 }
1188 return rate_idx;
1189 }
1190 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1191
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1192 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1193 struct ieee80211_tx_info *info)
1194 {
1195 struct rtl_priv *rtlpriv = rtl_priv(hw);
1196 struct ieee80211_tx_rate *r = &info->status.rates[0];
1197 struct ieee80211_rate *txrate;
1198 u8 hw_value = 0x0;
1199
1200 if (r->flags & IEEE80211_TX_RC_MCS) {
1201 /* HT MCS0-15 */
1202 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1203 r->idx;
1204 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1205 /* VHT MCS0-9, NSS */
1206 if (ieee80211_rate_get_vht_nss(r) == 2)
1207 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1208 else
1209 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1210
1211 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1212 } else {
1213 /* legacy */
1214 txrate = ieee80211_get_tx_rate(hw, info);
1215
1216 if (txrate)
1217 hw_value = txrate->hw_value;
1218 }
1219
1220 /* check 5G band */
1221 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1222 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1223 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1224
1225 return hw_value;
1226 }
1227
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)1228 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1229 struct ieee80211_tx_info *info,
1230 struct ieee80211_sta *sta,
1231 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1232 {
1233 #define SET_RATE_ID(rate_id) \
1234 ({typeof(rate_id) _id = rate_id; \
1235 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
1236 rtl_mrate_idx_to_arfr_id(hw, _id, \
1237 (sta_entry ? sta_entry->wireless_mode : \
1238 WIRELESS_MODE_G)) : \
1239 _id); })
1240
1241 struct rtl_priv *rtlpriv = rtl_priv(hw);
1242 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1243 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1244 struct rtl_sta_info *sta_entry =
1245 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1246
1247 __le16 fc = rtl_get_fc(skb);
1248
1249 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1250
1251 if (rtl_is_tx_report_skb(hw, skb))
1252 tcb_desc->use_spe_rpt = 1;
1253
1254 if (ieee80211_is_data(fc)) {
1255 /*
1256 *we set data rate INX 0
1257 *in rtl_rc.c if skb is special data or
1258 *mgt which need low data rate.
1259 */
1260
1261 /*
1262 *So tcb_desc->hw_rate is just used for
1263 *special data and mgt frames
1264 */
1265 if (info->control.rates[0].idx == 0 ||
1266 ieee80211_is_nullfunc(fc)) {
1267 tcb_desc->use_driver_rate = true;
1268 tcb_desc->ratr_index =
1269 SET_RATE_ID(RATR_INX_WIRELESS_MC);
1270
1271 tcb_desc->disable_ratefallback = 1;
1272 } else {
1273 /*
1274 *because hw will nerver use hw_rate
1275 *when tcb_desc->use_driver_rate = false
1276 *so we never set highest N rate here,
1277 *and N rate will all be controlled by FW
1278 *when tcb_desc->use_driver_rate = false
1279 */
1280 if (sta && sta->deflink.vht_cap.vht_supported) {
1281 tcb_desc->hw_rate =
1282 _rtl_get_vht_highest_n_rate(hw, sta);
1283 } else {
1284 if (sta && sta->deflink.ht_cap.ht_supported) {
1285 tcb_desc->hw_rate =
1286 _rtl_get_highest_n_rate(hw, sta);
1287 } else {
1288 if (rtlmac->mode == WIRELESS_MODE_B) {
1289 tcb_desc->hw_rate =
1290 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1291 } else {
1292 tcb_desc->hw_rate =
1293 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1294 }
1295 }
1296 }
1297 }
1298
1299 if (is_multicast_ether_addr(hdr->addr1))
1300 tcb_desc->multicast = 1;
1301 else if (is_broadcast_ether_addr(hdr->addr1))
1302 tcb_desc->broadcast = 1;
1303
1304 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1305 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1306 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1307 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1308 _rtl_query_protection_mode(hw, tcb_desc, info);
1309 } else {
1310 tcb_desc->use_driver_rate = true;
1311 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1312 tcb_desc->disable_ratefallback = 1;
1313 tcb_desc->mac_id = 0;
1314 tcb_desc->packet_bw = false;
1315 }
1316 #undef SET_RATE_ID
1317 }
1318 EXPORT_SYMBOL(rtl_get_tcb_desc);
1319
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1320 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1321 {
1322 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1323 struct rtl_priv *rtlpriv = rtl_priv(hw);
1324 __le16 fc = rtl_get_fc(skb);
1325
1326 if (rtlpriv->dm.supp_phymode_switch &&
1327 mac->link_state < MAC80211_LINKED &&
1328 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1329 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1330 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1331 }
1332 if (ieee80211_is_auth(fc)) {
1333 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1334
1335 mac->link_state = MAC80211_LINKING;
1336 /* Dul mac */
1337 rtlpriv->phy.need_iqk = true;
1338
1339 }
1340
1341 return true;
1342 }
1343 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1344
1345 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1346 u8 *bssid, u16 tid);
1347
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1348 static void process_agg_start(struct ieee80211_hw *hw,
1349 struct ieee80211_hdr *hdr, u16 tid)
1350 {
1351 struct rtl_priv *rtlpriv = rtl_priv(hw);
1352 struct ieee80211_rx_status rx_status = { 0 };
1353 struct sk_buff *skb_delba = NULL;
1354
1355 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1356 if (skb_delba) {
1357 rx_status.freq = hw->conf.chandef.chan->center_freq;
1358 rx_status.band = hw->conf.chandef.chan->band;
1359 rx_status.flag |= RX_FLAG_DECRYPTED;
1360 rx_status.flag |= RX_FLAG_MACTIME_START;
1361 rx_status.rate_idx = 0;
1362 rx_status.signal = 50 + 10;
1363 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1364 &rx_status, sizeof(rx_status));
1365 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1366 "fake del\n",
1367 skb_delba->data,
1368 skb_delba->len);
1369 ieee80211_rx_irqsafe(hw, skb_delba);
1370 }
1371 }
1372
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1373 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1374 {
1375 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1376 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1377 struct rtl_priv *rtlpriv = rtl_priv(hw);
1378 __le16 fc = rtl_get_fc(skb);
1379 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1380 u8 category;
1381
1382 if (!ieee80211_is_action(fc))
1383 return true;
1384
1385 category = *act;
1386 act++;
1387 switch (category) {
1388 case ACT_CAT_BA:
1389 switch (*act) {
1390 case ACT_ADDBAREQ:
1391 if (mac->act_scanning)
1392 return false;
1393
1394 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1395 "%s ACT_ADDBAREQ From :%pM\n",
1396 is_tx ? "Tx" : "Rx", hdr->addr2);
1397 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1398 skb->data, skb->len);
1399 if (!is_tx) {
1400 struct ieee80211_sta *sta = NULL;
1401 struct rtl_sta_info *sta_entry = NULL;
1402 struct rtl_tid_data *tid_data;
1403 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1404 u16 capab = 0, tid = 0;
1405
1406 rcu_read_lock();
1407 sta = rtl_find_sta(hw, hdr->addr3);
1408 if (sta == NULL) {
1409 rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
1410 DBG_DMESG, "sta is NULL\n");
1411 rcu_read_unlock();
1412 return true;
1413 }
1414
1415 sta_entry =
1416 (struct rtl_sta_info *)sta->drv_priv;
1417 if (!sta_entry) {
1418 rcu_read_unlock();
1419 return true;
1420 }
1421 capab =
1422 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1423 tid = (capab &
1424 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1425 if (tid >= MAX_TID_COUNT) {
1426 rcu_read_unlock();
1427 return true;
1428 }
1429 tid_data = &sta_entry->tids[tid];
1430 if (tid_data->agg.rx_agg_state ==
1431 RTL_RX_AGG_START)
1432 process_agg_start(hw, hdr, tid);
1433 rcu_read_unlock();
1434 }
1435 break;
1436 case ACT_ADDBARSP:
1437 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1438 "%s ACT_ADDBARSP From :%pM\n",
1439 is_tx ? "Tx" : "Rx", hdr->addr2);
1440 break;
1441 case ACT_DELBA:
1442 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1443 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1444 break;
1445 }
1446 break;
1447 default:
1448 break;
1449 }
1450
1451 return true;
1452 }
1453 EXPORT_SYMBOL_GPL(rtl_action_proc);
1454
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1455 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1456 int type)
1457 {
1458 struct ieee80211_hw *hw = rtlpriv->hw;
1459
1460 rtlpriv->ra.is_special_data = true;
1461 if (rtlpriv->cfg->ops->get_btc_status())
1462 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1463 rtlpriv, type);
1464 rtl_lps_leave(hw, false);
1465 ppsc->last_delaylps_stamp_jiffies = jiffies;
1466 }
1467
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1468 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1469 struct sk_buff *skb, bool is_enc)
1470 {
1471 struct rtl_priv *rtlpriv = rtl_priv(hw);
1472 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1473 u8 encrypt_header_len = 0;
1474 u8 offset;
1475
1476 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1477 case WEP40_ENCRYPTION:
1478 case WEP104_ENCRYPTION:
1479 encrypt_header_len = 4;/*WEP_IV_LEN*/
1480 break;
1481 case TKIP_ENCRYPTION:
1482 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1483 break;
1484 case AESCCMP_ENCRYPTION:
1485 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1486 break;
1487 default:
1488 break;
1489 }
1490
1491 offset = mac_hdr_len + SNAP_SIZE;
1492 if (is_enc)
1493 offset += encrypt_header_len;
1494
1495 return skb->data + offset;
1496 }
1497
1498 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1499 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1500 bool is_enc)
1501 {
1502 struct rtl_priv *rtlpriv = rtl_priv(hw);
1503 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1504 __le16 fc = rtl_get_fc(skb);
1505 u16 ether_type;
1506 const u8 *ether_type_ptr;
1507 const struct iphdr *ip;
1508
1509 if (!ieee80211_is_data(fc))
1510 goto end;
1511
1512 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1513 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1514
1515 if (ETH_P_IP == ether_type) {
1516 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1517 PROTOC_TYPE_SIZE);
1518 if (IPPROTO_UDP == ip->protocol) {
1519 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1520 (ip->ihl << 2));
1521 if (((((u8 *)udp)[1] == 68) &&
1522 (((u8 *)udp)[3] == 67)) ||
1523 ((((u8 *)udp)[1] == 67) &&
1524 (((u8 *)udp)[3] == 68))) {
1525 /* 68 : UDP BOOTP client
1526 * 67 : UDP BOOTP server
1527 */
1528 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
1529 DBG_DMESG, "dhcp %s !!\n",
1530 (is_tx) ? "Tx" : "Rx");
1531
1532 if (is_tx)
1533 setup_special_tx(rtlpriv, ppsc,
1534 PACKET_DHCP);
1535
1536 return true;
1537 }
1538 }
1539 } else if (ETH_P_ARP == ether_type) {
1540 if (is_tx)
1541 setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1542
1543 return true;
1544 } else if (ETH_P_PAE == ether_type) {
1545 /* EAPOL is seens as in-4way */
1546 rtlpriv->btcoexist.btc_info.in_4way = true;
1547 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1548
1549 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1550 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1551
1552 if (is_tx) {
1553 rtlpriv->ra.is_special_data = true;
1554 rtl_lps_leave(hw, false);
1555 ppsc->last_delaylps_stamp_jiffies = jiffies;
1556
1557 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1558 }
1559
1560 return true;
1561 } else if (ETH_P_IPV6 == ether_type) {
1562 /* TODO: Handle any IPv6 cases that need special handling.
1563 * For now, always return false
1564 */
1565 goto end;
1566 }
1567
1568 end:
1569 rtlpriv->ra.is_special_data = false;
1570 return false;
1571 }
1572 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1573
rtl_tx_ackqueue(struct ieee80211_hw * hw,struct sk_buff * skb)1574 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1575 {
1576 struct rtl_priv *rtlpriv = rtl_priv(hw);
1577 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1578
1579 __skb_queue_tail(&tx_report->queue, skb);
1580 }
1581 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1582
rtl_tx_status(struct ieee80211_hw * hw,struct sk_buff * skb,bool ack)1583 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1584 bool ack)
1585 {
1586 struct rtl_priv *rtlpriv = rtl_priv(hw);
1587 struct ieee80211_tx_info *info;
1588
1589 info = IEEE80211_SKB_CB(skb);
1590 ieee80211_tx_info_clear_status(info);
1591 if (ack) {
1592 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1593 "tx report: ack\n");
1594 info->flags |= IEEE80211_TX_STAT_ACK;
1595 } else {
1596 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1597 "tx report: not ack\n");
1598 info->flags &= ~IEEE80211_TX_STAT_ACK;
1599 }
1600 ieee80211_tx_status_irqsafe(hw, skb);
1601 }
1602
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1603 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1604 {
1605 u16 ether_type;
1606 const u8 *ether_type_ptr;
1607 __le16 fc = rtl_get_fc(skb);
1608
1609 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1610 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1611
1612 if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1613 return true;
1614
1615 return false;
1616 }
1617
rtl_get_tx_report_sn(struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1618 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1619 struct rtlwifi_tx_info *tx_info)
1620 {
1621 struct rtl_priv *rtlpriv = rtl_priv(hw);
1622 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1623 u16 sn;
1624
1625 /* SW_DEFINE[11:8] are reserved (driver fills zeros)
1626 * SW_DEFINE[7:2] are used by driver
1627 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1628 */
1629 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1630
1631 tx_report->last_sent_sn = sn;
1632 tx_report->last_sent_time = jiffies;
1633 tx_info->sn = sn;
1634 tx_info->send_time = tx_report->last_sent_time;
1635 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1636 "Send TX-Report sn=0x%X\n", sn);
1637
1638 return sn;
1639 }
1640
rtl_set_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1641 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1642 struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1643 {
1644 if (ptcb_desc->use_spe_rpt) {
1645 u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1646
1647 SET_TX_DESC_SPE_RPT(pdesc, 1);
1648 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1649 }
1650 }
1651 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1652
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1653 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1654 {
1655 struct rtl_priv *rtlpriv = rtl_priv(hw);
1656 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1657 struct rtlwifi_tx_info *tx_info;
1658 struct sk_buff_head *queue = &tx_report->queue;
1659 struct sk_buff *skb;
1660 u16 sn;
1661 u8 st, retry;
1662
1663 if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1664 sn = GET_TX_REPORT_SN_V2(tmp_buf);
1665 st = GET_TX_REPORT_ST_V2(tmp_buf);
1666 retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1667 } else {
1668 sn = GET_TX_REPORT_SN_V1(tmp_buf);
1669 st = GET_TX_REPORT_ST_V1(tmp_buf);
1670 retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1671 }
1672
1673 tx_report->last_recv_sn = sn;
1674
1675 skb_queue_walk(queue, skb) {
1676 tx_info = rtl_tx_skb_cb_info(skb);
1677 if (tx_info->sn == sn) {
1678 skb_unlink(skb, queue);
1679 rtl_tx_status(hw, skb, st == 0);
1680 break;
1681 }
1682 }
1683 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1684 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1685 st, sn, retry);
1686 }
1687 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1688
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1689 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1690 {
1691 struct rtl_priv *rtlpriv = rtl_priv(hw);
1692 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1693
1694 if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1695 return true;
1696
1697 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1698 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1699 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1700 tx_report->last_sent_sn, tx_report->last_recv_sn);
1701 return true; /* 3 sec. (timeout) seen as acked */
1702 }
1703
1704 return false;
1705 }
1706
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1707 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1708 {
1709 struct rtl_priv *rtlpriv = rtl_priv(hw);
1710 int i;
1711
1712 for (i = 0; i < wait_ms; i++) {
1713 if (rtl_check_tx_report_acked(hw))
1714 break;
1715 usleep_range(1000, 2000);
1716 rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1717 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1718 }
1719 }
1720
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1721 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1722 struct ieee80211_vif *vif,
1723 enum wireless_mode wirelessmode,
1724 struct ieee80211_tx_queue_params *param)
1725 {
1726 u32 reg = 0;
1727 u8 sifstime = 10;
1728 u8 slottime = 20;
1729
1730 /* AIFS = AIFSN * slot time + SIFS */
1731 switch (wirelessmode) {
1732 case WIRELESS_MODE_A:
1733 case WIRELESS_MODE_N_24G:
1734 case WIRELESS_MODE_N_5G:
1735 case WIRELESS_MODE_AC_5G:
1736 case WIRELESS_MODE_AC_24G:
1737 sifstime = 16;
1738 slottime = 9;
1739 break;
1740 case WIRELESS_MODE_G:
1741 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1742 break;
1743 default:
1744 break;
1745 }
1746
1747 reg |= (param->txop & 0x7FF) << 16;
1748 reg |= (fls(param->cw_max) & 0xF) << 12;
1749 reg |= (fls(param->cw_min) & 0xF) << 8;
1750 reg |= (param->aifs & 0x0F) * slottime + sifstime;
1751
1752 return reg;
1753 }
1754 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1755
1756 /*********************************************************
1757 *
1758 * functions called by core.c
1759 *
1760 *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1761 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1762 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
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
1768 if (sta == NULL)
1769 return -EINVAL;
1770
1771 if (unlikely(tid >= MAX_TID_COUNT))
1772 return -EINVAL;
1773
1774 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1775 if (!sta_entry)
1776 return -ENXIO;
1777 tid_data = &sta_entry->tids[tid];
1778
1779 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1780 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1781 *ssn);
1782
1783 tid_data->agg.agg_state = RTL_AGG_START;
1784
1785 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
1786 }
1787
rtl_tx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)1788 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1789 struct ieee80211_sta *sta, u16 tid)
1790 {
1791 struct rtl_priv *rtlpriv = rtl_priv(hw);
1792 struct rtl_sta_info *sta_entry = NULL;
1793
1794 if (sta == NULL)
1795 return -EINVAL;
1796
1797 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1798 "on ra = %pM tid = %d\n", sta->addr, tid);
1799
1800 if (unlikely(tid >= MAX_TID_COUNT))
1801 return -EINVAL;
1802
1803 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1804 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
1805
1806 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1807 return 0;
1808 }
1809
rtl_rx_agg_start(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1810 int rtl_rx_agg_start(struct ieee80211_hw *hw,
1811 struct ieee80211_sta *sta, u16 tid)
1812 {
1813 struct rtl_priv *rtlpriv = rtl_priv(hw);
1814 struct rtl_tid_data *tid_data;
1815 struct rtl_sta_info *sta_entry = NULL;
1816 u8 reject_agg;
1817
1818 if (sta == NULL)
1819 return -EINVAL;
1820
1821 if (unlikely(tid >= MAX_TID_COUNT))
1822 return -EINVAL;
1823
1824 if (rtlpriv->cfg->ops->get_btc_status()) {
1825 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
1826 &reject_agg,
1827 NULL, NULL);
1828 if (reject_agg)
1829 return -EINVAL;
1830 }
1831
1832 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1833 if (!sta_entry)
1834 return -ENXIO;
1835 tid_data = &sta_entry->tids[tid];
1836
1837 rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG,
1838 "on ra = %pM tid = %d\n", sta->addr, tid);
1839
1840 tid_data->agg.rx_agg_state = RTL_RX_AGG_START;
1841 return 0;
1842 }
1843
rtl_rx_agg_stop(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1844 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
1845 struct ieee80211_sta *sta, u16 tid)
1846 {
1847 struct rtl_priv *rtlpriv = rtl_priv(hw);
1848 struct rtl_sta_info *sta_entry = NULL;
1849
1850 if (sta == NULL)
1851 return -EINVAL;
1852
1853 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1854 "on ra = %pM tid = %d\n", sta->addr, tid);
1855
1856 if (unlikely(tid >= MAX_TID_COUNT))
1857 return -EINVAL;
1858
1859 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1860 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP;
1861
1862 return 0;
1863 }
1864
rtl_tx_agg_oper(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tid)1865 int rtl_tx_agg_oper(struct ieee80211_hw *hw,
1866 struct ieee80211_sta *sta, u16 tid)
1867 {
1868 struct rtl_priv *rtlpriv = rtl_priv(hw);
1869 struct rtl_sta_info *sta_entry = NULL;
1870
1871 if (sta == NULL)
1872 return -EINVAL;
1873
1874 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1875 "on ra = %pM tid = %d\n", sta->addr, tid);
1876
1877 if (unlikely(tid >= MAX_TID_COUNT))
1878 return -EINVAL;
1879
1880 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1881 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL;
1882
1883 return 0;
1884 }
1885
rtl_rx_ampdu_apply(struct rtl_priv * rtlpriv)1886 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
1887 {
1888 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
1889 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0;
1890
1891 if (rtlpriv->cfg->ops->get_btc_status())
1892 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
1893 &ctrl_agg_size, &agg_size);
1894
1895 rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
1896 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
1897 reject_agg, ctrl_agg_size, agg_size);
1898
1899 rtlpriv->hw->max_rx_aggregation_subframes =
1900 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT);
1901 }
1902 EXPORT_SYMBOL(rtl_rx_ampdu_apply);
1903
1904 /*********************************************************
1905 *
1906 * wq & timer callback functions
1907 *
1908 *********************************************************/
1909 /* this function is used for roaming */
rtl_beacon_statistic(struct ieee80211_hw * hw,struct sk_buff * skb)1910 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb)
1911 {
1912 struct rtl_priv *rtlpriv = rtl_priv(hw);
1913 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1914
1915 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION)
1916 return;
1917
1918 if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
1919 return;
1920
1921 /* check if this really is a beacon */
1922 if (!ieee80211_is_beacon(hdr->frame_control) &&
1923 !ieee80211_is_probe_resp(hdr->frame_control))
1924 return;
1925
1926 /* min. beacon length + FCS_LEN */
1927 if (skb->len <= 40 + FCS_LEN)
1928 return;
1929
1930 /* and only beacons from the associated BSSID, please */
1931 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid))
1932 return;
1933
1934 rtlpriv->link_info.bcn_rx_inperiod++;
1935 }
1936 EXPORT_SYMBOL_GPL(rtl_beacon_statistic);
1937
rtl_free_entries_from_scan_list(struct ieee80211_hw * hw)1938 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw)
1939 {
1940 struct rtl_priv *rtlpriv = rtl_priv(hw);
1941 struct rtl_bssid_entry *entry, *next;
1942
1943 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1944 list_del(&entry->list);
1945 kfree(entry);
1946 rtlpriv->scan_list.num--;
1947 }
1948 }
1949
rtl_free_entries_from_ack_queue(struct ieee80211_hw * hw,bool chk_timeout)1950 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
1951 bool chk_timeout)
1952 {
1953 struct rtl_priv *rtlpriv = rtl_priv(hw);
1954 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1955 struct sk_buff_head *queue = &tx_report->queue;
1956 struct sk_buff *skb, *tmp;
1957 struct rtlwifi_tx_info *tx_info;
1958
1959 skb_queue_walk_safe(queue, skb, tmp) {
1960 tx_info = rtl_tx_skb_cb_info(skb);
1961 if (chk_timeout &&
1962 time_after(tx_info->send_time + HZ, jiffies))
1963 continue;
1964 skb_unlink(skb, queue);
1965 rtl_tx_status(hw, skb, false);
1966 }
1967 }
1968
rtl_scan_list_expire(struct ieee80211_hw * hw)1969 void rtl_scan_list_expire(struct ieee80211_hw *hw)
1970 {
1971 struct rtl_priv *rtlpriv = rtl_priv(hw);
1972 struct rtl_bssid_entry *entry, *next;
1973 unsigned long flags;
1974
1975 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
1976
1977 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) {
1978 /* 180 seconds */
1979 if (jiffies_to_msecs(jiffies - entry->age) < 180000)
1980 continue;
1981
1982 list_del(&entry->list);
1983 rtlpriv->scan_list.num--;
1984
1985 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
1986 "BSSID=%pM is expire in scan list (total=%d)\n",
1987 entry->bssid, rtlpriv->scan_list.num);
1988 kfree(entry);
1989 }
1990
1991 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
1992
1993 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1994 }
1995
rtl_collect_scan_list(struct ieee80211_hw * hw,struct sk_buff * skb)1996 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb)
1997 {
1998 struct rtl_priv *rtlpriv = rtl_priv(hw);
1999 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
2000 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2001 unsigned long flags;
2002
2003 struct rtl_bssid_entry *entry = NULL, *iter;
2004
2005 /* check if it is scanning */
2006 if (!mac->act_scanning)
2007 return;
2008
2009 /* check if this really is a beacon */
2010 if (!ieee80211_is_beacon(hdr->frame_control) &&
2011 !ieee80211_is_probe_resp(hdr->frame_control))
2012 return;
2013
2014 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags);
2015
2016 list_for_each_entry(iter, &rtlpriv->scan_list.list, list) {
2017 if (memcmp(iter->bssid, hdr->addr3, ETH_ALEN) == 0) {
2018 list_del_init(&iter->list);
2019 entry = iter;
2020 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2021 "Update BSSID=%pM to scan list (total=%d)\n",
2022 hdr->addr3, rtlpriv->scan_list.num);
2023 break;
2024 }
2025 }
2026
2027 if (!entry) {
2028 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
2029
2030 if (!entry)
2031 goto label_err;
2032
2033 memcpy(entry->bssid, hdr->addr3, ETH_ALEN);
2034 rtlpriv->scan_list.num++;
2035
2036 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD,
2037 "Add BSSID=%pM to scan list (total=%d)\n",
2038 hdr->addr3, rtlpriv->scan_list.num);
2039 }
2040
2041 entry->age = jiffies;
2042
2043 list_add_tail(&entry->list, &rtlpriv->scan_list.list);
2044
2045 label_err:
2046 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags);
2047 }
2048 EXPORT_SYMBOL(rtl_collect_scan_list);
2049
rtl_watchdog_wq_callback(struct work_struct * work)2050 static void rtl_watchdog_wq_callback(struct work_struct *work)
2051 {
2052 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2053 watchdog_wq.work);
2054 struct ieee80211_hw *hw = rtlworks->hw;
2055 struct rtl_priv *rtlpriv = rtl_priv(hw);
2056 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2057 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2058 bool busytraffic = false;
2059 bool tx_busy_traffic = false;
2060 bool rx_busy_traffic = false;
2061 bool higher_busytraffic = false;
2062 bool higher_busyrxtraffic = false;
2063 u8 idx, tid;
2064 u32 rx_cnt_inp4eriod = 0;
2065 u32 tx_cnt_inp4eriod = 0;
2066 u32 aver_rx_cnt_inperiod = 0;
2067 u32 aver_tx_cnt_inperiod = 0;
2068 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2069 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2070
2071 if (is_hal_stop(rtlhal))
2072 return;
2073
2074 /* <1> Determine if action frame is allowed */
2075 if (mac->link_state > MAC80211_NOLINK) {
2076 if (mac->cnt_after_linked < 20)
2077 mac->cnt_after_linked++;
2078 } else {
2079 mac->cnt_after_linked = 0;
2080 }
2081
2082 /* <2> to check if traffic busy, if
2083 * busytraffic we don't change channel
2084 */
2085 if (mac->link_state >= MAC80211_LINKED) {
2086 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2087 for (idx = 0; idx <= 2; idx++) {
2088 rtlpriv->link_info.num_rx_in4period[idx] =
2089 rtlpriv->link_info.num_rx_in4period[idx + 1];
2090 rtlpriv->link_info.num_tx_in4period[idx] =
2091 rtlpriv->link_info.num_tx_in4period[idx + 1];
2092 }
2093 rtlpriv->link_info.num_rx_in4period[3] =
2094 rtlpriv->link_info.num_rx_inperiod;
2095 rtlpriv->link_info.num_tx_in4period[3] =
2096 rtlpriv->link_info.num_tx_inperiod;
2097 for (idx = 0; idx <= 3; idx++) {
2098 rx_cnt_inp4eriod +=
2099 rtlpriv->link_info.num_rx_in4period[idx];
2100 tx_cnt_inp4eriod +=
2101 rtlpriv->link_info.num_tx_in4period[idx];
2102 }
2103 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2104 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2105
2106 /* (2) check traffic busy */
2107 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2108 busytraffic = true;
2109 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2110 rx_busy_traffic = true;
2111 else
2112 tx_busy_traffic = false;
2113 }
2114
2115 /* Higher Tx/Rx data. */
2116 if (aver_rx_cnt_inperiod > 4000 ||
2117 aver_tx_cnt_inperiod > 4000) {
2118 higher_busytraffic = true;
2119
2120 /* Extremely high Rx data. */
2121 if (aver_rx_cnt_inperiod > 5000)
2122 higher_busyrxtraffic = true;
2123 }
2124
2125 /* check every tid's tx traffic */
2126 for (tid = 0; tid <= 7; tid++) {
2127 for (idx = 0; idx <= 2; idx++)
2128 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2129 rtlpriv->link_info.tidtx_in4period[tid]
2130 [idx + 1];
2131 rtlpriv->link_info.tidtx_in4period[tid][3] =
2132 rtlpriv->link_info.tidtx_inperiod[tid];
2133
2134 for (idx = 0; idx <= 3; idx++)
2135 tidtx_inp4eriod[tid] +=
2136 rtlpriv->link_info.tidtx_in4period[tid][idx];
2137 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2138 if (aver_tidtx_inperiod[tid] > 5000)
2139 rtlpriv->link_info.higher_busytxtraffic[tid] =
2140 true;
2141 else
2142 rtlpriv->link_info.higher_busytxtraffic[tid] =
2143 false;
2144 }
2145
2146 /* PS is controlled by coex. */
2147 if (rtlpriv->cfg->ops->get_btc_status() &&
2148 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2149 goto label_lps_done;
2150
2151 if (rtlpriv->link_info.num_rx_inperiod +
2152 rtlpriv->link_info.num_tx_inperiod > 8 ||
2153 rtlpriv->link_info.num_rx_inperiod > 2)
2154 rtl_lps_leave(hw, true);
2155 else
2156 rtl_lps_enter(hw, true);
2157
2158 label_lps_done:
2159 ;
2160 }
2161
2162 for (tid = 0; tid <= 7; tid++)
2163 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2164
2165 rtlpriv->link_info.busytraffic = busytraffic;
2166 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2167 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2168 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2169 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2170
2171 rtlpriv->stats.txbytesunicast_inperiod =
2172 rtlpriv->stats.txbytesunicast -
2173 rtlpriv->stats.txbytesunicast_last;
2174 rtlpriv->stats.rxbytesunicast_inperiod =
2175 rtlpriv->stats.rxbytesunicast -
2176 rtlpriv->stats.rxbytesunicast_last;
2177 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2178 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2179
2180 rtlpriv->stats.txbytesunicast_inperiod_tp =
2181 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2182 1024 / 1024);
2183 rtlpriv->stats.rxbytesunicast_inperiod_tp =
2184 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2185 1024 / 1024);
2186
2187 /* <3> DM */
2188 if (!rtlpriv->cfg->mod_params->disable_watchdog)
2189 rtlpriv->cfg->ops->dm_watchdog(hw);
2190
2191 /* <4> roaming */
2192 if (mac->link_state == MAC80211_LINKED &&
2193 mac->opmode == NL80211_IFTYPE_STATION) {
2194 if ((rtlpriv->link_info.bcn_rx_inperiod +
2195 rtlpriv->link_info.num_rx_inperiod) == 0) {
2196 rtlpriv->link_info.roam_times++;
2197 rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
2198 "AP off for %d s\n",
2199 (rtlpriv->link_info.roam_times * 2));
2200
2201 /* if we can't recv beacon for 10s,
2202 * we should reconnect this AP
2203 */
2204 if (rtlpriv->link_info.roam_times >= 5) {
2205 pr_err("AP off, try to reconnect now\n");
2206 rtlpriv->link_info.roam_times = 0;
2207 ieee80211_connection_loss(
2208 rtlpriv->mac80211.vif);
2209 }
2210 } else {
2211 rtlpriv->link_info.roam_times = 0;
2212 }
2213 }
2214
2215 if (rtlpriv->cfg->ops->get_btc_status())
2216 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2217
2218 if (rtlpriv->btcoexist.btc_info.in_4way) {
2219 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2220 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2221 rtlpriv->btcoexist.btc_info.in_4way = false;
2222 }
2223
2224 rtlpriv->link_info.num_rx_inperiod = 0;
2225 rtlpriv->link_info.num_tx_inperiod = 0;
2226 rtlpriv->link_info.bcn_rx_inperiod = 0;
2227
2228 /* <6> scan list */
2229 rtl_scan_list_expire(hw);
2230
2231 /* <7> check ack queue */
2232 rtl_free_entries_from_ack_queue(hw, true);
2233 }
2234
rtl_watch_dog_timer_callback(struct timer_list * t)2235 void rtl_watch_dog_timer_callback(struct timer_list *t)
2236 {
2237 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2238
2239 queue_delayed_work(rtlpriv->works.rtl_wq,
2240 &rtlpriv->works.watchdog_wq, 0);
2241
2242 mod_timer(&rtlpriv->works.watchdog_timer,
2243 jiffies + MSECS(RTL_WATCH_DOG_TIME));
2244 }
2245
rtl_fwevt_wq_callback(struct work_struct * work)2246 static void rtl_fwevt_wq_callback(struct work_struct *work)
2247 {
2248 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2249 fwevt_wq.work);
2250 struct ieee80211_hw *hw = rtlworks->hw;
2251 struct rtl_priv *rtlpriv = rtl_priv(hw);
2252
2253 rtlpriv->cfg->ops->c2h_command_handle(hw);
2254 }
2255
2256 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2257 struct sk_buff *skb);
2258
rtl_c2h_fast_cmd(struct ieee80211_hw * hw,struct sk_buff * skb)2259 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2260 {
2261 u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2262
2263 switch (cmd_id) {
2264 case C2H_BT_MP:
2265 return true;
2266 default:
2267 break;
2268 }
2269
2270 return false;
2271 }
2272
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,struct sk_buff * skb)2273 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2274 {
2275 struct rtl_priv *rtlpriv = rtl_priv(hw);
2276
2277 if (rtl_c2h_fast_cmd(hw, skb)) {
2278 rtl_c2h_content_parsing(hw, skb);
2279 kfree_skb(skb);
2280 return;
2281 }
2282
2283 /* enqueue */
2284 skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2285
2286 /* wake up wq */
2287 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2288 }
2289 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2290
rtl_c2h_content_parsing(struct ieee80211_hw * hw,struct sk_buff * skb)2291 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2292 struct sk_buff *skb)
2293 {
2294 struct rtl_priv *rtlpriv = rtl_priv(hw);
2295 struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2296 const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2297 u8 cmd_id, cmd_len;
2298 u8 *cmd_buf = NULL;
2299
2300 cmd_id = GET_C2H_CMD_ID(skb->data);
2301 cmd_len = skb->len - C2H_DATA_OFFSET;
2302 cmd_buf = GET_C2H_DATA_PTR(skb->data);
2303
2304 switch (cmd_id) {
2305 case C2H_DBG:
2306 rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2307 break;
2308 case C2H_TXBF:
2309 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2310 "[C2H], C2H_TXBF!!\n");
2311 break;
2312 case C2H_TX_REPORT:
2313 rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2314 break;
2315 case C2H_RA_RPT:
2316 if (hal_ops->c2h_ra_report_handler)
2317 hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2318 break;
2319 case C2H_BT_INFO:
2320 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2321 "[C2H], C2H_BT_INFO!!\n");
2322 if (rtlpriv->cfg->ops->get_btc_status())
2323 btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2324 break;
2325 case C2H_BT_MP:
2326 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2327 "[C2H], C2H_BT_MP!!\n");
2328 if (rtlpriv->cfg->ops->get_btc_status())
2329 btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2330 break;
2331 default:
2332 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2333 "[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2334 break;
2335 }
2336 }
2337
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2338 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2339 {
2340 struct rtl_priv *rtlpriv = rtl_priv(hw);
2341 struct sk_buff *skb;
2342 int i;
2343
2344 for (i = 0; i < 200; i++) {
2345 /* dequeue a task */
2346 skb = skb_dequeue(&rtlpriv->c2hcmd_queue);
2347
2348 /* do it */
2349 if (!skb)
2350 break;
2351
2352 rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2353 *((u8 *)skb->cb));
2354 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2355 "C2H data: ", skb->data, skb->len);
2356
2357 if (exec)
2358 rtl_c2h_content_parsing(hw, skb);
2359
2360 /* free */
2361 dev_kfree_skb_any(skb);
2362 }
2363 }
2364
rtl_c2hcmd_wq_callback(struct work_struct * work)2365 static void rtl_c2hcmd_wq_callback(struct work_struct *work)
2366 {
2367 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2368 c2hcmd_wq.work);
2369 struct ieee80211_hw *hw = rtlworks->hw;
2370
2371 rtl_c2hcmd_launcher(hw, 1);
2372 }
2373
2374 /*********************************************************
2375 *
2376 * frame process functions
2377 *
2378 *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2379 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2380 {
2381 struct ieee80211_mgmt *mgmt = (void *)data;
2382 u8 *pos, *end;
2383
2384 pos = (u8 *)mgmt->u.beacon.variable;
2385 end = data + len;
2386 while (pos < end) {
2387 if (pos + 2 + pos[1] > end)
2388 return NULL;
2389
2390 if (pos[0] == ie)
2391 return pos;
2392
2393 pos += 2 + pos[1];
2394 }
2395 return NULL;
2396 }
2397
2398 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2399 /* 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)2400 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2401 enum ieee80211_smps_mode smps,
2402 u8 *da, u8 *bssid)
2403 {
2404 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2405 struct sk_buff *skb;
2406 struct ieee80211_mgmt *action_frame;
2407
2408 /* 27 = header + category + action + smps mode */
2409 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2410 if (!skb)
2411 return NULL;
2412
2413 skb_reserve(skb, hw->extra_tx_headroom);
2414 action_frame = skb_put_zero(skb, 27);
2415 memcpy(action_frame->da, da, ETH_ALEN);
2416 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2417 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2418 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2419 IEEE80211_STYPE_ACTION);
2420 action_frame->u.action.category = WLAN_CATEGORY_HT;
2421 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2422 switch (smps) {
2423 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2424 case IEEE80211_SMPS_NUM_MODES:/* 4 */
2425 WARN_ON(1);
2426 fallthrough;
2427 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2428 action_frame->u.action.u.ht_smps.smps_control =
2429 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2430 break;
2431 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2432 action_frame->u.action.u.ht_smps.smps_control =
2433 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2434 break;
2435 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2436 action_frame->u.action.u.ht_smps.smps_control =
2437 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2438 break;
2439 }
2440
2441 return skb;
2442 }
2443
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2444 int rtl_send_smps_action(struct ieee80211_hw *hw,
2445 struct ieee80211_sta *sta,
2446 enum ieee80211_smps_mode smps)
2447 {
2448 struct rtl_priv *rtlpriv = rtl_priv(hw);
2449 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2450 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2451 struct sk_buff *skb = NULL;
2452 struct rtl_tcb_desc tcb_desc;
2453 u8 bssid[ETH_ALEN] = {0};
2454
2455 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2456
2457 if (rtlpriv->mac80211.act_scanning)
2458 goto err_free;
2459
2460 if (!sta)
2461 goto err_free;
2462
2463 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2464 goto err_free;
2465
2466 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2467 goto err_free;
2468
2469 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2470 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2471 else
2472 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2473
2474 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2475 /* this is a type = mgmt * stype = action frame */
2476 if (skb) {
2477 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2478 struct rtl_sta_info *sta_entry =
2479 (struct rtl_sta_info *) sta->drv_priv;
2480 sta_entry->mimo_ps = smps;
2481 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2482
2483 info->control.rates[0].idx = 0;
2484 info->band = hw->conf.chandef.chan->band;
2485 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2486 }
2487 return 1;
2488
2489 err_free:
2490 return 0;
2491 }
2492 EXPORT_SYMBOL(rtl_send_smps_action);
2493
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2494 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2495 {
2496 struct rtl_priv *rtlpriv = rtl_priv(hw);
2497 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2498 enum io_type iotype;
2499
2500 if (!is_hal_stop(rtlhal)) {
2501 switch (operation) {
2502 case SCAN_OPT_BACKUP:
2503 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2504 rtlpriv->cfg->ops->set_hw_reg(hw,
2505 HW_VAR_IO_CMD,
2506 (u8 *)&iotype);
2507 break;
2508 case SCAN_OPT_RESTORE:
2509 iotype = IO_CMD_RESUME_DM_BY_SCAN;
2510 rtlpriv->cfg->ops->set_hw_reg(hw,
2511 HW_VAR_IO_CMD,
2512 (u8 *)&iotype);
2513 break;
2514 default:
2515 pr_err("Unknown Scan Backup operation.\n");
2516 break;
2517 }
2518 }
2519 }
2520 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2521
2522 /* because mac80211 have issues when can receive del ba
2523 * so here we just make a fake del_ba if we receive a ba_req
2524 * but rx_agg was opened to let mac80211 release some ba
2525 * related resources, so please this del_ba for tx
2526 */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2527 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2528 u8 *sa, u8 *bssid, u16 tid)
2529 {
2530 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2531 struct sk_buff *skb;
2532 struct ieee80211_mgmt *action_frame;
2533 u16 params;
2534
2535 /* 27 = header + category + action + smps mode */
2536 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2537 if (!skb)
2538 return NULL;
2539
2540 skb_reserve(skb, hw->extra_tx_headroom);
2541 action_frame = skb_put_zero(skb, 34);
2542 memcpy(action_frame->sa, sa, ETH_ALEN);
2543 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2544 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2545 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2546 IEEE80211_STYPE_ACTION);
2547 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2548 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2549 params = (u16)(1 << 11); /* bit 11 initiator */
2550 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2551
2552 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2553 action_frame->u.action.u.delba.reason_code =
2554 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2555
2556 return skb;
2557 }
2558
2559 /*********************************************************
2560 *
2561 * IOT functions
2562 *
2563 *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2564 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2565 struct octet_string vendor_ie)
2566 {
2567 struct rtl_priv *rtlpriv = rtl_priv(hw);
2568 bool matched = false;
2569 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2570 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2571 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2572 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2573 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2574 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2575 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2576 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2577
2578 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2579 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2580 rtlpriv->mac80211.vendor = PEER_ATH;
2581 matched = true;
2582 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2583 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2584 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2585 rtlpriv->mac80211.vendor = PEER_BROAD;
2586 matched = true;
2587 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2588 rtlpriv->mac80211.vendor = PEER_RAL;
2589 matched = true;
2590 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2591 rtlpriv->mac80211.vendor = PEER_CISCO;
2592 matched = true;
2593 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2594 rtlpriv->mac80211.vendor = PEER_MARV;
2595 matched = true;
2596 }
2597
2598 return matched;
2599 }
2600
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2601 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2602 unsigned int len)
2603 {
2604 struct ieee80211_mgmt *mgmt = (void *)data;
2605 struct octet_string vendor_ie;
2606 u8 *pos, *end;
2607
2608 pos = (u8 *)mgmt->u.beacon.variable;
2609 end = data + len;
2610 while (pos < end) {
2611 if (pos[0] == 221) {
2612 vendor_ie.length = pos[1];
2613 vendor_ie.octet = &pos[2];
2614 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2615 return true;
2616 }
2617
2618 if (pos + 2 + pos[1] > end)
2619 return false;
2620
2621 pos += 2 + pos[1];
2622 }
2623 return false;
2624 }
2625
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2626 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2627 {
2628 struct rtl_priv *rtlpriv = rtl_priv(hw);
2629 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2630 struct ieee80211_hdr *hdr = (void *)data;
2631 u32 vendor = PEER_UNKNOWN;
2632
2633 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2634 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2635 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2636 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2637 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2638 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2639 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2640 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2641 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2642 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2643 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2644 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2645 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2646 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2647 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2648 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2649
2650 if (mac->opmode != NL80211_IFTYPE_STATION)
2651 return;
2652
2653 if (mac->link_state == MAC80211_NOLINK) {
2654 mac->vendor = PEER_UNKNOWN;
2655 return;
2656 }
2657
2658 if (mac->cnt_after_linked > 2)
2659 return;
2660
2661 /* check if this really is a beacon */
2662 if (!ieee80211_is_beacon(hdr->frame_control))
2663 return;
2664
2665 /* min. beacon length + FCS_LEN */
2666 if (len <= 40 + FCS_LEN)
2667 return;
2668
2669 /* and only beacons from the associated BSSID, please */
2670 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2671 return;
2672
2673 if (rtl_find_221_ie(hw, data, len))
2674 vendor = mac->vendor;
2675
2676 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2677 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2678 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2679 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2680 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2681 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2682 vendor == PEER_ATH) {
2683 vendor = PEER_ATH;
2684 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2685 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2686 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2687 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2688 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2689 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2690 vendor == PEER_RAL) {
2691 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2692 vendor = PEER_RAL;
2693 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2694 vendor == PEER_CISCO) {
2695 vendor = PEER_CISCO;
2696 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2697 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2698 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2699 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2700 vendor == PEER_BROAD) {
2701 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2702 vendor = PEER_BROAD;
2703 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2704 vendor == PEER_MARV) {
2705 vendor = PEER_MARV;
2706 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2707 }
2708
2709 mac->vendor = vendor;
2710 }
2711 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2712
2713 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2714 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2715 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2716 MODULE_LICENSE("GPL");
2717 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2718
rtl_core_module_init(void)2719 static int __init rtl_core_module_init(void)
2720 {
2721 BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2722 BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2723 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2724 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2725
2726 if (rtl_rate_control_register())
2727 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2728
2729 /* add debugfs */
2730 rtl_debugfs_add_topdir();
2731
2732 return 0;
2733 }
2734
rtl_core_module_exit(void)2735 static void __exit rtl_core_module_exit(void)
2736 {
2737 /*RC*/
2738 rtl_rate_control_unregister();
2739
2740 /* remove debugfs */
2741 rtl_debugfs_remove_topdir();
2742 }
2743
2744 module_init(rtl_core_module_init);
2745 module_exit(rtl_core_module_exit);
2746