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 void _rtl_init_deferred_work(struct ieee80211_hw *hw)
444 {
445 struct rtl_priv *rtlpriv = rtl_priv(hw);
446
447 /* <1> timer */
448 timer_setup(&rtlpriv->works.watchdog_timer,
449 rtl_watch_dog_timer_callback, 0);
450 timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
451 rtl_easy_concurrent_retrytimer_callback, 0);
452 /* <2> work queue */
453 rtlpriv->works.hw = hw;
454 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
455 if (unlikely(!rtlpriv->works.rtl_wq)) {
456 pr_err("Failed to allocate work queue\n");
457 return;
458 }
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 }
470
rtl_deinit_deferred_work(struct ieee80211_hw * hw,bool ips_wq)471 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
472 {
473 struct rtl_priv *rtlpriv = rtl_priv(hw);
474
475 del_timer_sync(&rtlpriv->works.watchdog_timer);
476
477 cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq);
478 if (ips_wq)
479 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
480 else
481 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
482 cancel_delayed_work_sync(&rtlpriv->works.ps_work);
483 cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq);
484 cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq);
485 cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq);
486 }
487 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work);
488
rtl_init_rfkill(struct ieee80211_hw * hw)489 void rtl_init_rfkill(struct ieee80211_hw *hw)
490 {
491 struct rtl_priv *rtlpriv = rtl_priv(hw);
492
493 bool radio_state;
494 bool blocked;
495 u8 valid = 0;
496
497 /*set init state to on */
498 rtlpriv->rfkill.rfkill_state = true;
499 wiphy_rfkill_set_hw_state(hw->wiphy, 0);
500
501 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
502
503 if (valid) {
504 pr_info("rtlwifi: wireless switch is %s\n",
505 rtlpriv->rfkill.rfkill_state ? "on" : "off");
506
507 rtlpriv->rfkill.rfkill_state = radio_state;
508
509 blocked = rtlpriv->rfkill.rfkill_state != 1;
510 wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
511 }
512
513 wiphy_rfkill_start_polling(hw->wiphy);
514 }
515 EXPORT_SYMBOL(rtl_init_rfkill);
516
rtl_deinit_rfkill(struct ieee80211_hw * hw)517 void rtl_deinit_rfkill(struct ieee80211_hw *hw)
518 {
519 wiphy_rfkill_stop_polling(hw->wiphy);
520 }
521 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill);
522
rtl_init_core(struct ieee80211_hw * hw)523 int rtl_init_core(struct ieee80211_hw *hw)
524 {
525 struct rtl_priv *rtlpriv = rtl_priv(hw);
526 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
527
528 /* <1> init mac80211 */
529 _rtl_init_mac80211(hw);
530 rtlmac->hw = hw;
531
532 /* <2> rate control register */
533 hw->rate_control_algorithm = "rtl_rc";
534
535 /*
536 * <3> init CRDA must come after init
537 * mac80211 hw in _rtl_init_mac80211.
538 */
539 if (rtl_regd_init(hw, rtl_reg_notifier)) {
540 pr_err("REGD init failed\n");
541 return 1;
542 }
543
544 /* <4> locks */
545 mutex_init(&rtlpriv->locks.conf_mutex);
546 mutex_init(&rtlpriv->locks.ips_mutex);
547 mutex_init(&rtlpriv->locks.lps_mutex);
548 spin_lock_init(&rtlpriv->locks.irq_th_lock);
549 spin_lock_init(&rtlpriv->locks.h2c_lock);
550 spin_lock_init(&rtlpriv->locks.rf_ps_lock);
551 spin_lock_init(&rtlpriv->locks.rf_lock);
552 spin_lock_init(&rtlpriv->locks.waitq_lock);
553 spin_lock_init(&rtlpriv->locks.entry_list_lock);
554 spin_lock_init(&rtlpriv->locks.c2hcmd_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 _rtl_init_deferred_work(hw);
569
570 return 0;
571 }
572 EXPORT_SYMBOL_GPL(rtl_init_core);
573
574 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw);
575 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw,
576 bool timeout);
577
rtl_deinit_core(struct ieee80211_hw * hw)578 void rtl_deinit_core(struct ieee80211_hw *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 }
584 EXPORT_SYMBOL_GPL(rtl_deinit_core);
585
rtl_init_rx_config(struct ieee80211_hw * hw)586 void rtl_init_rx_config(struct ieee80211_hw *hw)
587 {
588 struct rtl_priv *rtlpriv = rtl_priv(hw);
589 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
590
591 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf));
592 }
593 EXPORT_SYMBOL_GPL(rtl_init_rx_config);
594
595 /*********************************************************
596 *
597 * tx information functions
598 *
599 *********************************************************/
_rtl_qurey_shortpreamble_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)600 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw,
601 struct rtl_tcb_desc *tcb_desc,
602 struct ieee80211_tx_info *info)
603 {
604 struct rtl_priv *rtlpriv = rtl_priv(hw);
605 u8 rate_flag = info->control.rates[0].flags;
606
607 tcb_desc->use_shortpreamble = false;
608
609 /* 1M can only use Long Preamble. 11B spec */
610 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M])
611 return;
612 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
613 tcb_desc->use_shortpreamble = true;
614
615 return;
616 }
617
_rtl_query_shortgi(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)618 static void _rtl_query_shortgi(struct ieee80211_hw *hw,
619 struct ieee80211_sta *sta,
620 struct rtl_tcb_desc *tcb_desc,
621 struct ieee80211_tx_info *info)
622 {
623 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
624 u8 rate_flag = info->control.rates[0].flags;
625 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0;
626 u8 sgi_80 = 0, bw_80 = 0;
627
628 tcb_desc->use_shortgi = false;
629
630 if (sta == NULL)
631 return;
632
633 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
634 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
635 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
636
637 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
638 return;
639
640 if (!sgi_40 && !sgi_20)
641 return;
642
643 if (mac->opmode == NL80211_IFTYPE_STATION) {
644 bw_40 = mac->bw_40;
645 bw_80 = mac->bw_80;
646 } else if (mac->opmode == NL80211_IFTYPE_AP ||
647 mac->opmode == NL80211_IFTYPE_ADHOC ||
648 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
649 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
650 bw_80 = sta->vht_cap.vht_supported;
651 }
652
653 if (bw_80) {
654 if (sgi_80)
655 tcb_desc->use_shortgi = true;
656 else
657 tcb_desc->use_shortgi = false;
658 } else {
659 if (bw_40 && sgi_40)
660 tcb_desc->use_shortgi = true;
661 else if (!bw_40 && sgi_20)
662 tcb_desc->use_shortgi = true;
663 }
664
665 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI))
666 tcb_desc->use_shortgi = false;
667 }
668
_rtl_query_protection_mode(struct ieee80211_hw * hw,struct rtl_tcb_desc * tcb_desc,struct ieee80211_tx_info * info)669 static void _rtl_query_protection_mode(struct ieee80211_hw *hw,
670 struct rtl_tcb_desc *tcb_desc,
671 struct ieee80211_tx_info *info)
672 {
673 struct rtl_priv *rtlpriv = rtl_priv(hw);
674 u8 rate_flag = info->control.rates[0].flags;
675
676 /* Common Settings */
677 tcb_desc->rts_stbc = false;
678 tcb_desc->cts_enable = false;
679 tcb_desc->rts_sc = 0;
680 tcb_desc->rts_bw = false;
681 tcb_desc->rts_use_shortpreamble = false;
682 tcb_desc->rts_use_shortgi = false;
683
684 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
685 /* Use CTS-to-SELF in protection mode. */
686 tcb_desc->rts_enable = true;
687 tcb_desc->cts_enable = true;
688 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
689 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
690 /* Use RTS-CTS in protection mode. */
691 tcb_desc->rts_enable = true;
692 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M];
693 }
694 }
695
rtl_mrate_idx_to_arfr_id(struct ieee80211_hw * hw,u8 rate_index,enum wireless_mode wirelessmode)696 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index,
697 enum wireless_mode wirelessmode)
698 {
699 struct rtl_priv *rtlpriv = rtl_priv(hw);
700 struct rtl_phy *rtlphy = &rtlpriv->phy;
701 u8 ret = 0;
702
703 switch (rate_index) {
704 case RATR_INX_WIRELESS_NGB:
705 if (rtlphy->rf_type == RF_1T1R)
706 ret = RATEID_IDX_BGN_40M_1SS;
707 else
708 ret = RATEID_IDX_BGN_40M_2SS;
709 ; break;
710 case RATR_INX_WIRELESS_N:
711 case RATR_INX_WIRELESS_NG:
712 if (rtlphy->rf_type == RF_1T1R)
713 ret = RATEID_IDX_GN_N1SS;
714 else
715 ret = RATEID_IDX_GN_N2SS;
716 ; break;
717 case RATR_INX_WIRELESS_NB:
718 if (rtlphy->rf_type == RF_1T1R)
719 ret = RATEID_IDX_BGN_20M_1SS_BN;
720 else
721 ret = RATEID_IDX_BGN_20M_2SS_BN;
722 ; break;
723 case RATR_INX_WIRELESS_GB:
724 ret = RATEID_IDX_BG;
725 break;
726 case RATR_INX_WIRELESS_G:
727 ret = RATEID_IDX_G;
728 break;
729 case RATR_INX_WIRELESS_B:
730 ret = RATEID_IDX_B;
731 break;
732 case RATR_INX_WIRELESS_MC:
733 if (wirelessmode == WIRELESS_MODE_B ||
734 wirelessmode == WIRELESS_MODE_G ||
735 wirelessmode == WIRELESS_MODE_N_24G ||
736 wirelessmode == WIRELESS_MODE_AC_24G)
737 ret = RATEID_IDX_BG;
738 else
739 ret = RATEID_IDX_G;
740 break;
741 case RATR_INX_WIRELESS_AC_5N:
742 if (rtlphy->rf_type == RF_1T1R)
743 ret = RATEID_IDX_VHT_1SS;
744 else
745 ret = RATEID_IDX_VHT_2SS;
746 break;
747 case RATR_INX_WIRELESS_AC_24N:
748 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
749 if (rtlphy->rf_type == RF_1T1R)
750 ret = RATEID_IDX_VHT_1SS;
751 else
752 ret = RATEID_IDX_VHT_2SS;
753 } else {
754 if (rtlphy->rf_type == RF_1T1R)
755 ret = RATEID_IDX_MIX1;
756 else
757 ret = RATEID_IDX_MIX2;
758 }
759 break;
760 default:
761 ret = RATEID_IDX_BGN_40M_2SS;
762 break;
763 }
764 return ret;
765 }
766 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id);
767
_rtl_txrate_selectmode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)768 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw,
769 struct ieee80211_sta *sta,
770 struct rtl_tcb_desc *tcb_desc)
771 {
772 #define SET_RATE_ID(rate_id) \
773 ({typeof(rate_id) _id = rate_id; \
774 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
775 rtl_mrate_idx_to_arfr_id(hw, _id, \
776 (sta_entry ? sta_entry->wireless_mode : \
777 WIRELESS_MODE_G)) : \
778 _id); })
779
780 struct rtl_priv *rtlpriv = rtl_priv(hw);
781 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
782 struct rtl_sta_info *sta_entry = NULL;
783 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
784
785 if (sta) {
786 sta_entry = (struct rtl_sta_info *) sta->drv_priv;
787 ratr_index = sta_entry->ratr_index;
788 }
789 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) {
790 if (mac->opmode == NL80211_IFTYPE_STATION) {
791 tcb_desc->ratr_index = 0;
792 } else if (mac->opmode == NL80211_IFTYPE_ADHOC ||
793 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
794 if (tcb_desc->multicast || tcb_desc->broadcast) {
795 tcb_desc->hw_rate =
796 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M];
797 tcb_desc->use_driver_rate = 1;
798 tcb_desc->ratr_index =
799 SET_RATE_ID(RATR_INX_WIRELESS_MC);
800 } else {
801 tcb_desc->ratr_index = ratr_index;
802 }
803 } else if (mac->opmode == NL80211_IFTYPE_AP) {
804 tcb_desc->ratr_index = ratr_index;
805 }
806 }
807
808 if (rtlpriv->dm.useramask) {
809 tcb_desc->ratr_index = ratr_index;
810 /* TODO we will differentiate adhoc and station future */
811 if (mac->opmode == NL80211_IFTYPE_STATION ||
812 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
813 tcb_desc->mac_id = 0;
814
815 if (sta &&
816 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID))
817 ; /* use sta_entry->ratr_index */
818 else if (mac->mode == WIRELESS_MODE_AC_5G)
819 tcb_desc->ratr_index =
820 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N);
821 else if (mac->mode == WIRELESS_MODE_AC_24G)
822 tcb_desc->ratr_index =
823 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N);
824 else if (mac->mode == WIRELESS_MODE_N_24G)
825 tcb_desc->ratr_index =
826 SET_RATE_ID(RATR_INX_WIRELESS_NGB);
827 else if (mac->mode == WIRELESS_MODE_N_5G)
828 tcb_desc->ratr_index =
829 SET_RATE_ID(RATR_INX_WIRELESS_NG);
830 else if (mac->mode & WIRELESS_MODE_G)
831 tcb_desc->ratr_index =
832 SET_RATE_ID(RATR_INX_WIRELESS_GB);
833 else if (mac->mode & WIRELESS_MODE_B)
834 tcb_desc->ratr_index =
835 SET_RATE_ID(RATR_INX_WIRELESS_B);
836 else if (mac->mode & WIRELESS_MODE_A)
837 tcb_desc->ratr_index =
838 SET_RATE_ID(RATR_INX_WIRELESS_G);
839
840 } else if (mac->opmode == NL80211_IFTYPE_AP ||
841 mac->opmode == NL80211_IFTYPE_ADHOC) {
842 if (NULL != sta) {
843 if (sta->aid > 0)
844 tcb_desc->mac_id = sta->aid + 1;
845 else
846 tcb_desc->mac_id = 1;
847 } else {
848 tcb_desc->mac_id = 0;
849 }
850 }
851 }
852 #undef SET_RATE_ID
853 }
854
_rtl_query_bandwidth_mode(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct rtl_tcb_desc * tcb_desc)855 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw,
856 struct ieee80211_sta *sta,
857 struct rtl_tcb_desc *tcb_desc)
858 {
859 struct rtl_priv *rtlpriv = rtl_priv(hw);
860 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
861
862 tcb_desc->packet_bw = false;
863 if (!sta)
864 return;
865 if (mac->opmode == NL80211_IFTYPE_AP ||
866 mac->opmode == NL80211_IFTYPE_ADHOC ||
867 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
868 if (!(sta->ht_cap.ht_supported) ||
869 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
870 return;
871 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
872 if (!mac->bw_40 || !(sta->ht_cap.ht_supported))
873 return;
874 }
875 if (tcb_desc->multicast || tcb_desc->broadcast)
876 return;
877
878 /*use legency rate, shall use 20MHz */
879 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M])
880 return;
881
882 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40;
883
884 if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) {
885 if (mac->opmode == NL80211_IFTYPE_AP ||
886 mac->opmode == NL80211_IFTYPE_ADHOC ||
887 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
888 if (!(sta->vht_cap.vht_supported))
889 return;
890 } else if (mac->opmode == NL80211_IFTYPE_STATION) {
891 if (!mac->bw_80 ||
892 !(sta->vht_cap.vht_supported))
893 return;
894 }
895 if (tcb_desc->hw_rate <=
896 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15])
897 return;
898 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80;
899 }
900 }
901
_rtl_get_vht_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)902 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
903 struct ieee80211_sta *sta)
904 {
905 struct rtl_priv *rtlpriv = rtl_priv(hw);
906 struct rtl_phy *rtlphy = &(rtlpriv->phy);
907 u8 hw_rate;
908 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map);
909
910 if ((get_rf_type(rtlphy) == RF_2T2R) &&
911 (tx_mcs_map & 0x000c) != 0x000c) {
912 if ((tx_mcs_map & 0x000c) >> 2 ==
913 IEEE80211_VHT_MCS_SUPPORT_0_7)
914 hw_rate =
915 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7];
916 else if ((tx_mcs_map & 0x000c) >> 2 ==
917 IEEE80211_VHT_MCS_SUPPORT_0_8)
918 hw_rate =
919 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
920 else
921 hw_rate =
922 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
923 } else {
924 if ((tx_mcs_map & 0x0003) ==
925 IEEE80211_VHT_MCS_SUPPORT_0_7)
926 hw_rate =
927 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7];
928 else if ((tx_mcs_map & 0x0003) ==
929 IEEE80211_VHT_MCS_SUPPORT_0_8)
930 hw_rate =
931 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
932 else
933 hw_rate =
934 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
935 }
936
937 return hw_rate;
938 }
939
_rtl_get_highest_n_rate(struct ieee80211_hw * hw,struct ieee80211_sta * sta)940 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
941 struct ieee80211_sta *sta)
942 {
943 struct rtl_priv *rtlpriv = rtl_priv(hw);
944 struct rtl_phy *rtlphy = &rtlpriv->phy;
945 u8 hw_rate;
946
947 if (get_rf_type(rtlphy) == RF_2T2R &&
948 sta->ht_cap.mcs.rx_mask[1] != 0)
949 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
950 else
951 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
952
953 return hw_rate;
954 }
955
956 /* mac80211's rate_idx is like this:
957 *
958 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ
959 *
960 * B/G rate:
961 * (rx_status->flag & RX_FLAG_HT) = 0,
962 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11,
963 *
964 * N rate:
965 * (rx_status->flag & RX_FLAG_HT) = 1,
966 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
967 *
968 * 5G band:rx_status->band == NL80211_BAND_5GHZ
969 * A rate:
970 * (rx_status->flag & RX_FLAG_HT) = 0,
971 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7,
972 *
973 * N rate:
974 * (rx_status->flag & RX_FLAG_HT) = 1,
975 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15
976 *
977 * VHT rates:
978 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9
979 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9
980 */
rtlwifi_rate_mapping(struct ieee80211_hw * hw,bool isht,bool isvht,u8 desc_rate)981 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
982 u8 desc_rate)
983 {
984 int rate_idx;
985
986 if (isvht) {
987 switch (desc_rate) {
988 case DESC_RATEVHT1SS_MCS0:
989 rate_idx = 0;
990 break;
991 case DESC_RATEVHT1SS_MCS1:
992 rate_idx = 1;
993 break;
994 case DESC_RATEVHT1SS_MCS2:
995 rate_idx = 2;
996 break;
997 case DESC_RATEVHT1SS_MCS3:
998 rate_idx = 3;
999 break;
1000 case DESC_RATEVHT1SS_MCS4:
1001 rate_idx = 4;
1002 break;
1003 case DESC_RATEVHT1SS_MCS5:
1004 rate_idx = 5;
1005 break;
1006 case DESC_RATEVHT1SS_MCS6:
1007 rate_idx = 6;
1008 break;
1009 case DESC_RATEVHT1SS_MCS7:
1010 rate_idx = 7;
1011 break;
1012 case DESC_RATEVHT1SS_MCS8:
1013 rate_idx = 8;
1014 break;
1015 case DESC_RATEVHT1SS_MCS9:
1016 rate_idx = 9;
1017 break;
1018 case DESC_RATEVHT2SS_MCS0:
1019 rate_idx = 0;
1020 break;
1021 case DESC_RATEVHT2SS_MCS1:
1022 rate_idx = 1;
1023 break;
1024 case DESC_RATEVHT2SS_MCS2:
1025 rate_idx = 2;
1026 break;
1027 case DESC_RATEVHT2SS_MCS3:
1028 rate_idx = 3;
1029 break;
1030 case DESC_RATEVHT2SS_MCS4:
1031 rate_idx = 4;
1032 break;
1033 case DESC_RATEVHT2SS_MCS5:
1034 rate_idx = 5;
1035 break;
1036 case DESC_RATEVHT2SS_MCS6:
1037 rate_idx = 6;
1038 break;
1039 case DESC_RATEVHT2SS_MCS7:
1040 rate_idx = 7;
1041 break;
1042 case DESC_RATEVHT2SS_MCS8:
1043 rate_idx = 8;
1044 break;
1045 case DESC_RATEVHT2SS_MCS9:
1046 rate_idx = 9;
1047 break;
1048 default:
1049 rate_idx = 0;
1050 break;
1051 }
1052 return rate_idx;
1053 }
1054 if (false == isht) {
1055 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) {
1056 switch (desc_rate) {
1057 case DESC_RATE1M:
1058 rate_idx = 0;
1059 break;
1060 case DESC_RATE2M:
1061 rate_idx = 1;
1062 break;
1063 case DESC_RATE5_5M:
1064 rate_idx = 2;
1065 break;
1066 case DESC_RATE11M:
1067 rate_idx = 3;
1068 break;
1069 case DESC_RATE6M:
1070 rate_idx = 4;
1071 break;
1072 case DESC_RATE9M:
1073 rate_idx = 5;
1074 break;
1075 case DESC_RATE12M:
1076 rate_idx = 6;
1077 break;
1078 case DESC_RATE18M:
1079 rate_idx = 7;
1080 break;
1081 case DESC_RATE24M:
1082 rate_idx = 8;
1083 break;
1084 case DESC_RATE36M:
1085 rate_idx = 9;
1086 break;
1087 case DESC_RATE48M:
1088 rate_idx = 10;
1089 break;
1090 case DESC_RATE54M:
1091 rate_idx = 11;
1092 break;
1093 default:
1094 rate_idx = 0;
1095 break;
1096 }
1097 } else {
1098 switch (desc_rate) {
1099 case DESC_RATE6M:
1100 rate_idx = 0;
1101 break;
1102 case DESC_RATE9M:
1103 rate_idx = 1;
1104 break;
1105 case DESC_RATE12M:
1106 rate_idx = 2;
1107 break;
1108 case DESC_RATE18M:
1109 rate_idx = 3;
1110 break;
1111 case DESC_RATE24M:
1112 rate_idx = 4;
1113 break;
1114 case DESC_RATE36M:
1115 rate_idx = 5;
1116 break;
1117 case DESC_RATE48M:
1118 rate_idx = 6;
1119 break;
1120 case DESC_RATE54M:
1121 rate_idx = 7;
1122 break;
1123 default:
1124 rate_idx = 0;
1125 break;
1126 }
1127 }
1128 } else {
1129 switch (desc_rate) {
1130 case DESC_RATEMCS0:
1131 rate_idx = 0;
1132 break;
1133 case DESC_RATEMCS1:
1134 rate_idx = 1;
1135 break;
1136 case DESC_RATEMCS2:
1137 rate_idx = 2;
1138 break;
1139 case DESC_RATEMCS3:
1140 rate_idx = 3;
1141 break;
1142 case DESC_RATEMCS4:
1143 rate_idx = 4;
1144 break;
1145 case DESC_RATEMCS5:
1146 rate_idx = 5;
1147 break;
1148 case DESC_RATEMCS6:
1149 rate_idx = 6;
1150 break;
1151 case DESC_RATEMCS7:
1152 rate_idx = 7;
1153 break;
1154 case DESC_RATEMCS8:
1155 rate_idx = 8;
1156 break;
1157 case DESC_RATEMCS9:
1158 rate_idx = 9;
1159 break;
1160 case DESC_RATEMCS10:
1161 rate_idx = 10;
1162 break;
1163 case DESC_RATEMCS11:
1164 rate_idx = 11;
1165 break;
1166 case DESC_RATEMCS12:
1167 rate_idx = 12;
1168 break;
1169 case DESC_RATEMCS13:
1170 rate_idx = 13;
1171 break;
1172 case DESC_RATEMCS14:
1173 rate_idx = 14;
1174 break;
1175 case DESC_RATEMCS15:
1176 rate_idx = 15;
1177 break;
1178 default:
1179 rate_idx = 0;
1180 break;
1181 }
1182 }
1183 return rate_idx;
1184 }
1185 EXPORT_SYMBOL(rtlwifi_rate_mapping);
1186
_rtl_get_tx_hw_rate(struct ieee80211_hw * hw,struct ieee80211_tx_info * info)1187 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
1188 struct ieee80211_tx_info *info)
1189 {
1190 struct rtl_priv *rtlpriv = rtl_priv(hw);
1191 struct ieee80211_tx_rate *r = &info->status.rates[0];
1192 struct ieee80211_rate *txrate;
1193 u8 hw_value = 0x0;
1194
1195 if (r->flags & IEEE80211_TX_RC_MCS) {
1196 /* HT MCS0-15 */
1197 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
1198 r->idx;
1199 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
1200 /* VHT MCS0-9, NSS */
1201 if (ieee80211_rate_get_vht_nss(r) == 2)
1202 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
1203 else
1204 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
1205
1206 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
1207 } else {
1208 /* legacy */
1209 txrate = ieee80211_get_tx_rate(hw, info);
1210
1211 if (txrate)
1212 hw_value = txrate->hw_value;
1213 }
1214
1215 /* check 5G band */
1216 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
1217 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
1218 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
1219
1220 return hw_value;
1221 }
1222
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)1223 void rtl_get_tcb_desc(struct ieee80211_hw *hw,
1224 struct ieee80211_tx_info *info,
1225 struct ieee80211_sta *sta,
1226 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
1227 {
1228 #define SET_RATE_ID(rate_id) \
1229 ({typeof(rate_id) _id = rate_id; \
1230 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \
1231 rtl_mrate_idx_to_arfr_id(hw, _id, \
1232 (sta_entry ? sta_entry->wireless_mode : \
1233 WIRELESS_MODE_G)) : \
1234 _id); })
1235
1236 struct rtl_priv *rtlpriv = rtl_priv(hw);
1237 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1238 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1239 struct rtl_sta_info *sta_entry =
1240 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);
1241
1242 __le16 fc = rtl_get_fc(skb);
1243
1244 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
1245
1246 if (rtl_is_tx_report_skb(hw, skb))
1247 tcb_desc->use_spe_rpt = 1;
1248
1249 if (ieee80211_is_data(fc)) {
1250 /*
1251 *we set data rate INX 0
1252 *in rtl_rc.c if skb is special data or
1253 *mgt which need low data rate.
1254 */
1255
1256 /*
1257 *So tcb_desc->hw_rate is just used for
1258 *special data and mgt frames
1259 */
1260 if (info->control.rates[0].idx == 0 ||
1261 ieee80211_is_nullfunc(fc)) {
1262 tcb_desc->use_driver_rate = true;
1263 tcb_desc->ratr_index =
1264 SET_RATE_ID(RATR_INX_WIRELESS_MC);
1265
1266 tcb_desc->disable_ratefallback = 1;
1267 } else {
1268 /*
1269 *because hw will nerver use hw_rate
1270 *when tcb_desc->use_driver_rate = false
1271 *so we never set highest N rate here,
1272 *and N rate will all be controlled by FW
1273 *when tcb_desc->use_driver_rate = false
1274 */
1275 if (sta && sta->vht_cap.vht_supported) {
1276 tcb_desc->hw_rate =
1277 _rtl_get_vht_highest_n_rate(hw, sta);
1278 } else {
1279 if (sta && sta->ht_cap.ht_supported) {
1280 tcb_desc->hw_rate =
1281 _rtl_get_highest_n_rate(hw, sta);
1282 } else {
1283 if (rtlmac->mode == WIRELESS_MODE_B) {
1284 tcb_desc->hw_rate =
1285 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
1286 } else {
1287 tcb_desc->hw_rate =
1288 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
1289 }
1290 }
1291 }
1292 }
1293
1294 if (is_multicast_ether_addr(hdr->addr1))
1295 tcb_desc->multicast = 1;
1296 else if (is_broadcast_ether_addr(hdr->addr1))
1297 tcb_desc->broadcast = 1;
1298
1299 _rtl_txrate_selectmode(hw, sta, tcb_desc);
1300 _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
1301 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
1302 _rtl_query_shortgi(hw, sta, tcb_desc, info);
1303 _rtl_query_protection_mode(hw, tcb_desc, info);
1304 } else {
1305 tcb_desc->use_driver_rate = true;
1306 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
1307 tcb_desc->disable_ratefallback = 1;
1308 tcb_desc->mac_id = 0;
1309 tcb_desc->packet_bw = false;
1310 }
1311 #undef SET_RATE_ID
1312 }
1313 EXPORT_SYMBOL(rtl_get_tcb_desc);
1314
rtl_tx_mgmt_proc(struct ieee80211_hw * hw,struct sk_buff * skb)1315 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb)
1316 {
1317 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1318 struct rtl_priv *rtlpriv = rtl_priv(hw);
1319 __le16 fc = rtl_get_fc(skb);
1320
1321 if (rtlpriv->dm.supp_phymode_switch &&
1322 mac->link_state < MAC80211_LINKED &&
1323 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) {
1324 if (rtlpriv->cfg->ops->chk_switch_dmdp)
1325 rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1326 }
1327 if (ieee80211_is_auth(fc)) {
1328 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
1329
1330 mac->link_state = MAC80211_LINKING;
1331 /* Dul mac */
1332 rtlpriv->phy.need_iqk = true;
1333
1334 }
1335
1336 return true;
1337 }
1338 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc);
1339
1340 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa,
1341 u8 *bssid, u16 tid);
1342
process_agg_start(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u16 tid)1343 static void process_agg_start(struct ieee80211_hw *hw,
1344 struct ieee80211_hdr *hdr, u16 tid)
1345 {
1346 struct rtl_priv *rtlpriv = rtl_priv(hw);
1347 struct ieee80211_rx_status rx_status = { 0 };
1348 struct sk_buff *skb_delba = NULL;
1349
1350 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid);
1351 if (skb_delba) {
1352 rx_status.freq = hw->conf.chandef.chan->center_freq;
1353 rx_status.band = hw->conf.chandef.chan->band;
1354 rx_status.flag |= RX_FLAG_DECRYPTED;
1355 rx_status.flag |= RX_FLAG_MACTIME_START;
1356 rx_status.rate_idx = 0;
1357 rx_status.signal = 50 + 10;
1358 memcpy(IEEE80211_SKB_RXCB(skb_delba),
1359 &rx_status, sizeof(rx_status));
1360 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG,
1361 "fake del\n",
1362 skb_delba->data,
1363 skb_delba->len);
1364 ieee80211_rx_irqsafe(hw, skb_delba);
1365 }
1366 }
1367
rtl_action_proc(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx)1368 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
1369 {
1370 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1371 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1372 struct rtl_priv *rtlpriv = rtl_priv(hw);
1373 __le16 fc = rtl_get_fc(skb);
1374 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN));
1375 u8 category;
1376
1377 if (!ieee80211_is_action(fc))
1378 return true;
1379
1380 category = *act;
1381 act++;
1382 switch (category) {
1383 case ACT_CAT_BA:
1384 switch (*act) {
1385 case ACT_ADDBAREQ:
1386 if (mac->act_scanning)
1387 return false;
1388
1389 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1390 "%s ACT_ADDBAREQ From :%pM\n",
1391 is_tx ? "Tx" : "Rx", hdr->addr2);
1392 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n",
1393 skb->data, skb->len);
1394 if (!is_tx) {
1395 struct ieee80211_sta *sta = NULL;
1396 struct rtl_sta_info *sta_entry = NULL;
1397 struct rtl_tid_data *tid_data;
1398 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1399 u16 capab = 0, tid = 0;
1400
1401 rcu_read_lock();
1402 sta = rtl_find_sta(hw, hdr->addr3);
1403 if (sta == NULL) {
1404 rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV,
1405 DBG_DMESG, "sta is NULL\n");
1406 rcu_read_unlock();
1407 return true;
1408 }
1409
1410 sta_entry =
1411 (struct rtl_sta_info *)sta->drv_priv;
1412 if (!sta_entry) {
1413 rcu_read_unlock();
1414 return true;
1415 }
1416 capab =
1417 le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1418 tid = (capab &
1419 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1420 if (tid >= MAX_TID_COUNT) {
1421 rcu_read_unlock();
1422 return true;
1423 }
1424 tid_data = &sta_entry->tids[tid];
1425 if (tid_data->agg.rx_agg_state ==
1426 RTL_RX_AGG_START)
1427 process_agg_start(hw, hdr, tid);
1428 rcu_read_unlock();
1429 }
1430 break;
1431 case ACT_ADDBARSP:
1432 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1433 "%s ACT_ADDBARSP From :%pM\n",
1434 is_tx ? "Tx" : "Rx", hdr->addr2);
1435 break;
1436 case ACT_DELBA:
1437 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1438 "ACT_ADDBADEL From :%pM\n", hdr->addr2);
1439 break;
1440 }
1441 break;
1442 default:
1443 break;
1444 }
1445
1446 return true;
1447 }
1448 EXPORT_SYMBOL_GPL(rtl_action_proc);
1449
setup_special_tx(struct rtl_priv * rtlpriv,struct rtl_ps_ctl * ppsc,int type)1450 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc,
1451 int type)
1452 {
1453 struct ieee80211_hw *hw = rtlpriv->hw;
1454
1455 rtlpriv->ra.is_special_data = true;
1456 if (rtlpriv->cfg->ops->get_btc_status())
1457 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
1458 rtlpriv, type);
1459 rtl_lps_leave(hw, false);
1460 ppsc->last_delaylps_stamp_jiffies = jiffies;
1461 }
1462
rtl_skb_ether_type_ptr(struct ieee80211_hw * hw,struct sk_buff * skb,bool is_enc)1463 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw,
1464 struct sk_buff *skb, bool is_enc)
1465 {
1466 struct rtl_priv *rtlpriv = rtl_priv(hw);
1467 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb);
1468 u8 encrypt_header_len = 0;
1469 u8 offset;
1470
1471 switch (rtlpriv->sec.pairwise_enc_algorithm) {
1472 case WEP40_ENCRYPTION:
1473 case WEP104_ENCRYPTION:
1474 encrypt_header_len = 4;/*WEP_IV_LEN*/
1475 break;
1476 case TKIP_ENCRYPTION:
1477 encrypt_header_len = 8;/*TKIP_IV_LEN*/
1478 break;
1479 case AESCCMP_ENCRYPTION:
1480 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/
1481 break;
1482 default:
1483 break;
1484 }
1485
1486 offset = mac_hdr_len + SNAP_SIZE;
1487 if (is_enc)
1488 offset += encrypt_header_len;
1489
1490 return skb->data + offset;
1491 }
1492
1493 /*should call before software enc*/
rtl_is_special_data(struct ieee80211_hw * hw,struct sk_buff * skb,u8 is_tx,bool is_enc)1494 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
1495 bool is_enc)
1496 {
1497 struct rtl_priv *rtlpriv = rtl_priv(hw);
1498 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1499 __le16 fc = rtl_get_fc(skb);
1500 u16 ether_type;
1501 const u8 *ether_type_ptr;
1502 const struct iphdr *ip;
1503
1504 if (!ieee80211_is_data(fc))
1505 goto end;
1506
1507 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc);
1508 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1509
1510 if (ETH_P_IP == ether_type) {
1511 ip = (struct iphdr *)((u8 *)ether_type_ptr +
1512 PROTOC_TYPE_SIZE);
1513 if (IPPROTO_UDP == ip->protocol) {
1514 struct udphdr *udp = (struct udphdr *)((u8 *)ip +
1515 (ip->ihl << 2));
1516 if (((((u8 *)udp)[1] == 68) &&
1517 (((u8 *)udp)[3] == 67)) ||
1518 ((((u8 *)udp)[1] == 67) &&
1519 (((u8 *)udp)[3] == 68))) {
1520 /* 68 : UDP BOOTP client
1521 * 67 : UDP BOOTP server
1522 */
1523 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV),
1524 DBG_DMESG, "dhcp %s !!\n",
1525 (is_tx) ? "Tx" : "Rx");
1526
1527 if (is_tx)
1528 setup_special_tx(rtlpriv, ppsc,
1529 PACKET_DHCP);
1530
1531 return true;
1532 }
1533 }
1534 } else if (ETH_P_ARP == ether_type) {
1535 if (is_tx)
1536 setup_special_tx(rtlpriv, ppsc, PACKET_ARP);
1537
1538 return true;
1539 } else if (ETH_P_PAE == ether_type) {
1540 /* EAPOL is seens as in-4way */
1541 rtlpriv->btcoexist.btc_info.in_4way = true;
1542 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
1543
1544 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
1545 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
1546
1547 if (is_tx) {
1548 rtlpriv->ra.is_special_data = true;
1549 rtl_lps_leave(hw, false);
1550 ppsc->last_delaylps_stamp_jiffies = jiffies;
1551
1552 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL);
1553 }
1554
1555 return true;
1556 } else if (ETH_P_IPV6 == ether_type) {
1557 /* TODO: Handle any IPv6 cases that need special handling.
1558 * For now, always return false
1559 */
1560 goto end;
1561 }
1562
1563 end:
1564 rtlpriv->ra.is_special_data = false;
1565 return false;
1566 }
1567 EXPORT_SYMBOL_GPL(rtl_is_special_data);
1568
rtl_tx_ackqueue(struct ieee80211_hw * hw,struct sk_buff * skb)1569 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
1570 {
1571 struct rtl_priv *rtlpriv = rtl_priv(hw);
1572 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1573
1574 __skb_queue_tail(&tx_report->queue, skb);
1575 }
1576 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue);
1577
rtl_tx_status(struct ieee80211_hw * hw,struct sk_buff * skb,bool ack)1578 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
1579 bool ack)
1580 {
1581 struct rtl_priv *rtlpriv = rtl_priv(hw);
1582 struct ieee80211_tx_info *info;
1583
1584 info = IEEE80211_SKB_CB(skb);
1585 ieee80211_tx_info_clear_status(info);
1586 if (ack) {
1587 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1588 "tx report: ack\n");
1589 info->flags |= IEEE80211_TX_STAT_ACK;
1590 } else {
1591 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD,
1592 "tx report: not ack\n");
1593 info->flags &= ~IEEE80211_TX_STAT_ACK;
1594 }
1595 ieee80211_tx_status_irqsafe(hw, skb);
1596 }
1597
rtl_is_tx_report_skb(struct ieee80211_hw * hw,struct sk_buff * skb)1598 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
1599 {
1600 u16 ether_type;
1601 const u8 *ether_type_ptr;
1602 __le16 fc = rtl_get_fc(skb);
1603
1604 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true);
1605 ether_type = be16_to_cpup((__be16 *)ether_type_ptr);
1606
1607 if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc))
1608 return true;
1609
1610 return false;
1611 }
1612
rtl_get_tx_report_sn(struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1613 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw,
1614 struct rtlwifi_tx_info *tx_info)
1615 {
1616 struct rtl_priv *rtlpriv = rtl_priv(hw);
1617 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1618 u16 sn;
1619
1620 /* SW_DEFINE[11:8] are reserved (driver fills zeros)
1621 * SW_DEFINE[7:2] are used by driver
1622 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros)
1623 */
1624 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2;
1625
1626 tx_report->last_sent_sn = sn;
1627 tx_report->last_sent_time = jiffies;
1628 tx_info->sn = sn;
1629 tx_info->send_time = tx_report->last_sent_time;
1630 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1631 "Send TX-Report sn=0x%X\n", sn);
1632
1633 return sn;
1634 }
1635
rtl_set_tx_report(struct rtl_tcb_desc * ptcb_desc,u8 * pdesc,struct ieee80211_hw * hw,struct rtlwifi_tx_info * tx_info)1636 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc,
1637 struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info)
1638 {
1639 if (ptcb_desc->use_spe_rpt) {
1640 u16 sn = rtl_get_tx_report_sn(hw, tx_info);
1641
1642 SET_TX_DESC_SPE_RPT(pdesc, 1);
1643 SET_TX_DESC_SW_DEFINE(pdesc, sn);
1644 }
1645 }
1646 EXPORT_SYMBOL_GPL(rtl_set_tx_report);
1647
rtl_tx_report_handler(struct ieee80211_hw * hw,u8 * tmp_buf,u8 c2h_cmd_len)1648 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len)
1649 {
1650 struct rtl_priv *rtlpriv = rtl_priv(hw);
1651 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1652 struct rtlwifi_tx_info *tx_info;
1653 struct sk_buff_head *queue = &tx_report->queue;
1654 struct sk_buff *skb;
1655 u16 sn;
1656 u8 st, retry;
1657
1658 if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) {
1659 sn = GET_TX_REPORT_SN_V2(tmp_buf);
1660 st = GET_TX_REPORT_ST_V2(tmp_buf);
1661 retry = GET_TX_REPORT_RETRY_V2(tmp_buf);
1662 } else {
1663 sn = GET_TX_REPORT_SN_V1(tmp_buf);
1664 st = GET_TX_REPORT_ST_V1(tmp_buf);
1665 retry = GET_TX_REPORT_RETRY_V1(tmp_buf);
1666 }
1667
1668 tx_report->last_recv_sn = sn;
1669
1670 skb_queue_walk(queue, skb) {
1671 tx_info = rtl_tx_skb_cb_info(skb);
1672 if (tx_info->sn == sn) {
1673 skb_unlink(skb, queue);
1674 rtl_tx_status(hw, skb, st == 0);
1675 break;
1676 }
1677 }
1678 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG,
1679 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n",
1680 st, sn, retry);
1681 }
1682 EXPORT_SYMBOL_GPL(rtl_tx_report_handler);
1683
rtl_check_tx_report_acked(struct ieee80211_hw * hw)1684 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw)
1685 {
1686 struct rtl_priv *rtlpriv = rtl_priv(hw);
1687 struct rtl_tx_report *tx_report = &rtlpriv->tx_report;
1688
1689 if (tx_report->last_sent_sn == tx_report->last_recv_sn)
1690 return true;
1691
1692 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) {
1693 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING,
1694 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n",
1695 tx_report->last_sent_sn, tx_report->last_recv_sn);
1696 return true; /* 3 sec. (timeout) seen as acked */
1697 }
1698
1699 return false;
1700 }
1701
rtl_wait_tx_report_acked(struct ieee80211_hw * hw,u32 wait_ms)1702 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms)
1703 {
1704 struct rtl_priv *rtlpriv = rtl_priv(hw);
1705 int i;
1706
1707 for (i = 0; i < wait_ms; i++) {
1708 if (rtl_check_tx_report_acked(hw))
1709 break;
1710 usleep_range(1000, 2000);
1711 rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1712 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms);
1713 }
1714 }
1715
rtl_get_hal_edca_param(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum wireless_mode wirelessmode,struct ieee80211_tx_queue_params * param)1716 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw,
1717 struct ieee80211_vif *vif,
1718 enum wireless_mode wirelessmode,
1719 struct ieee80211_tx_queue_params *param)
1720 {
1721 u32 reg = 0;
1722 u8 sifstime = 10;
1723 u8 slottime = 20;
1724
1725 /* AIFS = AIFSN * slot time + SIFS */
1726 switch (wirelessmode) {
1727 case WIRELESS_MODE_A:
1728 case WIRELESS_MODE_N_24G:
1729 case WIRELESS_MODE_N_5G:
1730 case WIRELESS_MODE_AC_5G:
1731 case WIRELESS_MODE_AC_24G:
1732 sifstime = 16;
1733 slottime = 9;
1734 break;
1735 case WIRELESS_MODE_G:
1736 slottime = (vif->bss_conf.use_short_slot ? 9 : 20);
1737 break;
1738 default:
1739 break;
1740 }
1741
1742 reg |= (param->txop & 0x7FF) << 16;
1743 reg |= (fls(param->cw_max) & 0xF) << 12;
1744 reg |= (fls(param->cw_min) & 0xF) << 8;
1745 reg |= (param->aifs & 0x0F) * slottime + sifstime;
1746
1747 return reg;
1748 }
1749 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param);
1750
1751 /*********************************************************
1752 *
1753 * functions called by core.c
1754 *
1755 *********************************************************/
rtl_tx_agg_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)1756 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1757 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
1758 {
1759 struct rtl_priv *rtlpriv = rtl_priv(hw);
1760 struct rtl_tid_data *tid_data;
1761 struct rtl_sta_info *sta_entry = NULL;
1762
1763 if (sta == NULL)
1764 return -EINVAL;
1765
1766 if (unlikely(tid >= MAX_TID_COUNT))
1767 return -EINVAL;
1768
1769 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1770 if (!sta_entry)
1771 return -ENXIO;
1772 tid_data = &sta_entry->tids[tid];
1773
1774 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG,
1775 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid,
1776 *ssn);
1777
1778 tid_data->agg.agg_state = RTL_AGG_START;
1779
1780 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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 rtl_dbg(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(struct work_struct * work)2046 static void rtl_watchdog_wq_callback(struct work_struct *work)
2047 {
2048 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2049 watchdog_wq.work);
2050 struct ieee80211_hw *hw = rtlworks->hw;
2051 struct rtl_priv *rtlpriv = rtl_priv(hw);
2052 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2053 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2054 bool busytraffic = false;
2055 bool tx_busy_traffic = false;
2056 bool rx_busy_traffic = false;
2057 bool higher_busytraffic = false;
2058 bool higher_busyrxtraffic = false;
2059 u8 idx, tid;
2060 u32 rx_cnt_inp4eriod = 0;
2061 u32 tx_cnt_inp4eriod = 0;
2062 u32 aver_rx_cnt_inperiod = 0;
2063 u32 aver_tx_cnt_inperiod = 0;
2064 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0};
2065 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0};
2066
2067 if (is_hal_stop(rtlhal))
2068 return;
2069
2070 /* <1> Determine if action frame is allowed */
2071 if (mac->link_state > MAC80211_NOLINK) {
2072 if (mac->cnt_after_linked < 20)
2073 mac->cnt_after_linked++;
2074 } else {
2075 mac->cnt_after_linked = 0;
2076 }
2077
2078 /* <2> to check if traffic busy, if
2079 * busytraffic we don't change channel
2080 */
2081 if (mac->link_state >= MAC80211_LINKED) {
2082 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */
2083 for (idx = 0; idx <= 2; idx++) {
2084 rtlpriv->link_info.num_rx_in4period[idx] =
2085 rtlpriv->link_info.num_rx_in4period[idx + 1];
2086 rtlpriv->link_info.num_tx_in4period[idx] =
2087 rtlpriv->link_info.num_tx_in4period[idx + 1];
2088 }
2089 rtlpriv->link_info.num_rx_in4period[3] =
2090 rtlpriv->link_info.num_rx_inperiod;
2091 rtlpriv->link_info.num_tx_in4period[3] =
2092 rtlpriv->link_info.num_tx_inperiod;
2093 for (idx = 0; idx <= 3; idx++) {
2094 rx_cnt_inp4eriod +=
2095 rtlpriv->link_info.num_rx_in4period[idx];
2096 tx_cnt_inp4eriod +=
2097 rtlpriv->link_info.num_tx_in4period[idx];
2098 }
2099 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4;
2100 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4;
2101
2102 /* (2) check traffic busy */
2103 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) {
2104 busytraffic = true;
2105 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod)
2106 rx_busy_traffic = true;
2107 else
2108 tx_busy_traffic = false;
2109 }
2110
2111 /* Higher Tx/Rx data. */
2112 if (aver_rx_cnt_inperiod > 4000 ||
2113 aver_tx_cnt_inperiod > 4000) {
2114 higher_busytraffic = true;
2115
2116 /* Extremely high Rx data. */
2117 if (aver_rx_cnt_inperiod > 5000)
2118 higher_busyrxtraffic = true;
2119 }
2120
2121 /* check every tid's tx traffic */
2122 for (tid = 0; tid <= 7; tid++) {
2123 for (idx = 0; idx <= 2; idx++)
2124 rtlpriv->link_info.tidtx_in4period[tid][idx] =
2125 rtlpriv->link_info.tidtx_in4period[tid]
2126 [idx + 1];
2127 rtlpriv->link_info.tidtx_in4period[tid][3] =
2128 rtlpriv->link_info.tidtx_inperiod[tid];
2129
2130 for (idx = 0; idx <= 3; idx++)
2131 tidtx_inp4eriod[tid] +=
2132 rtlpriv->link_info.tidtx_in4period[tid][idx];
2133 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4;
2134 if (aver_tidtx_inperiod[tid] > 5000)
2135 rtlpriv->link_info.higher_busytxtraffic[tid] =
2136 true;
2137 else
2138 rtlpriv->link_info.higher_busytxtraffic[tid] =
2139 false;
2140 }
2141
2142 /* PS is controlled by coex. */
2143 if (rtlpriv->cfg->ops->get_btc_status() &&
2144 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
2145 goto label_lps_done;
2146
2147 if (rtlpriv->link_info.num_rx_inperiod +
2148 rtlpriv->link_info.num_tx_inperiod > 8 ||
2149 rtlpriv->link_info.num_rx_inperiod > 2)
2150 rtl_lps_leave(hw, true);
2151 else
2152 rtl_lps_enter(hw, true);
2153
2154 label_lps_done:
2155 ;
2156 }
2157
2158 for (tid = 0; tid <= 7; tid++)
2159 rtlpriv->link_info.tidtx_inperiod[tid] = 0;
2160
2161 rtlpriv->link_info.busytraffic = busytraffic;
2162 rtlpriv->link_info.higher_busytraffic = higher_busytraffic;
2163 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic;
2164 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic;
2165 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic;
2166
2167 rtlpriv->stats.txbytesunicast_inperiod =
2168 rtlpriv->stats.txbytesunicast -
2169 rtlpriv->stats.txbytesunicast_last;
2170 rtlpriv->stats.rxbytesunicast_inperiod =
2171 rtlpriv->stats.rxbytesunicast -
2172 rtlpriv->stats.rxbytesunicast_last;
2173 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast;
2174 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast;
2175
2176 rtlpriv->stats.txbytesunicast_inperiod_tp =
2177 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 /
2178 1024 / 1024);
2179 rtlpriv->stats.rxbytesunicast_inperiod_tp =
2180 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 /
2181 1024 / 1024);
2182
2183 /* <3> DM */
2184 if (!rtlpriv->cfg->mod_params->disable_watchdog)
2185 rtlpriv->cfg->ops->dm_watchdog(hw);
2186
2187 /* <4> roaming */
2188 if (mac->link_state == MAC80211_LINKED &&
2189 mac->opmode == NL80211_IFTYPE_STATION) {
2190 if ((rtlpriv->link_info.bcn_rx_inperiod +
2191 rtlpriv->link_info.num_rx_inperiod) == 0) {
2192 rtlpriv->link_info.roam_times++;
2193 rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
2194 "AP off for %d s\n",
2195 (rtlpriv->link_info.roam_times * 2));
2196
2197 /* if we can't recv beacon for 10s,
2198 * we should reconnect this AP
2199 */
2200 if (rtlpriv->link_info.roam_times >= 5) {
2201 pr_err("AP off, try to reconnect now\n");
2202 rtlpriv->link_info.roam_times = 0;
2203 ieee80211_connection_loss(
2204 rtlpriv->mac80211.vif);
2205 }
2206 } else {
2207 rtlpriv->link_info.roam_times = 0;
2208 }
2209 }
2210
2211 if (rtlpriv->cfg->ops->get_btc_status())
2212 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
2213
2214 if (rtlpriv->btcoexist.btc_info.in_4way) {
2215 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
2216 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
2217 rtlpriv->btcoexist.btc_info.in_4way = false;
2218 }
2219
2220 rtlpriv->link_info.num_rx_inperiod = 0;
2221 rtlpriv->link_info.num_tx_inperiod = 0;
2222 rtlpriv->link_info.bcn_rx_inperiod = 0;
2223
2224 /* <6> scan list */
2225 rtl_scan_list_expire(hw);
2226
2227 /* <7> check ack queue */
2228 rtl_free_entries_from_ack_queue(hw, true);
2229 }
2230
rtl_watch_dog_timer_callback(struct timer_list * t)2231 void rtl_watch_dog_timer_callback(struct timer_list *t)
2232 {
2233 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
2234
2235 queue_delayed_work(rtlpriv->works.rtl_wq,
2236 &rtlpriv->works.watchdog_wq, 0);
2237
2238 mod_timer(&rtlpriv->works.watchdog_timer,
2239 jiffies + MSECS(RTL_WATCH_DOG_TIME));
2240 }
2241
rtl_fwevt_wq_callback(struct work_struct * work)2242 static void rtl_fwevt_wq_callback(struct work_struct *work)
2243 {
2244 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2245 fwevt_wq.work);
2246 struct ieee80211_hw *hw = rtlworks->hw;
2247 struct rtl_priv *rtlpriv = rtl_priv(hw);
2248
2249 rtlpriv->cfg->ops->c2h_command_handle(hw);
2250 }
2251
2252 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2253 struct sk_buff *skb);
2254
rtl_c2h_fast_cmd(struct ieee80211_hw * hw,struct sk_buff * skb)2255 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb)
2256 {
2257 u8 cmd_id = GET_C2H_CMD_ID(skb->data);
2258
2259 switch (cmd_id) {
2260 case C2H_BT_MP:
2261 return true;
2262 default:
2263 break;
2264 }
2265
2266 return false;
2267 }
2268
rtl_c2hcmd_enqueue(struct ieee80211_hw * hw,struct sk_buff * skb)2269 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
2270 {
2271 struct rtl_priv *rtlpriv = rtl_priv(hw);
2272 unsigned long flags;
2273
2274 if (rtl_c2h_fast_cmd(hw, skb)) {
2275 rtl_c2h_content_parsing(hw, skb);
2276 kfree_skb(skb);
2277 return;
2278 }
2279
2280 /* enqueue */
2281 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2282
2283 __skb_queue_tail(&rtlpriv->c2hcmd_queue, skb);
2284
2285 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2286
2287 /* wake up wq */
2288 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0);
2289 }
2290 EXPORT_SYMBOL(rtl_c2hcmd_enqueue);
2291
rtl_c2h_content_parsing(struct ieee80211_hw * hw,struct sk_buff * skb)2292 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw,
2293 struct sk_buff *skb)
2294 {
2295 struct rtl_priv *rtlpriv = rtl_priv(hw);
2296 struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops;
2297 const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
2298 u8 cmd_id, cmd_len;
2299 u8 *cmd_buf = NULL;
2300
2301 cmd_id = GET_C2H_CMD_ID(skb->data);
2302 cmd_len = skb->len - C2H_DATA_OFFSET;
2303 cmd_buf = GET_C2H_DATA_PTR(skb->data);
2304
2305 switch (cmd_id) {
2306 case C2H_DBG:
2307 rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n");
2308 break;
2309 case C2H_TXBF:
2310 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2311 "[C2H], C2H_TXBF!!\n");
2312 break;
2313 case C2H_TX_REPORT:
2314 rtl_tx_report_handler(hw, cmd_buf, cmd_len);
2315 break;
2316 case C2H_RA_RPT:
2317 if (hal_ops->c2h_ra_report_handler)
2318 hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len);
2319 break;
2320 case C2H_BT_INFO:
2321 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2322 "[C2H], C2H_BT_INFO!!\n");
2323 if (rtlpriv->cfg->ops->get_btc_status())
2324 btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len);
2325 break;
2326 case C2H_BT_MP:
2327 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2328 "[C2H], C2H_BT_MP!!\n");
2329 if (rtlpriv->cfg->ops->get_btc_status())
2330 btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len);
2331 break;
2332 default:
2333 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE,
2334 "[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id);
2335 break;
2336 }
2337 }
2338
rtl_c2hcmd_launcher(struct ieee80211_hw * hw,int exec)2339 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec)
2340 {
2341 struct rtl_priv *rtlpriv = rtl_priv(hw);
2342 struct sk_buff *skb;
2343 unsigned long flags;
2344 int i;
2345
2346 for (i = 0; i < 200; i++) {
2347 /* dequeue a task */
2348 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags);
2349
2350 skb = __skb_dequeue(&rtlpriv->c2hcmd_queue);
2351
2352 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags);
2353
2354 /* do it */
2355 if (!skb)
2356 break;
2357
2358 rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n",
2359 *((u8 *)skb->cb));
2360 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG,
2361 "C2H data: ", skb->data, skb->len);
2362
2363 if (exec)
2364 rtl_c2h_content_parsing(hw, skb);
2365
2366 /* free */
2367 dev_kfree_skb_any(skb);
2368 }
2369 }
2370
rtl_c2hcmd_wq_callback(struct work_struct * work)2371 static void rtl_c2hcmd_wq_callback(struct work_struct *work)
2372 {
2373 struct rtl_works *rtlworks = container_of(work, struct rtl_works,
2374 c2hcmd_wq.work);
2375 struct ieee80211_hw *hw = rtlworks->hw;
2376
2377 rtl_c2hcmd_launcher(hw, 1);
2378 }
2379
rtl_easy_concurrent_retrytimer_callback(struct timer_list * t)2380 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
2381 {
2382 struct rtl_priv *rtlpriv =
2383 from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
2384 struct ieee80211_hw *hw = rtlpriv->hw;
2385 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
2386
2387 if (buddy_priv == NULL)
2388 return;
2389
2390 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw);
2391 }
2392
2393 /*********************************************************
2394 *
2395 * frame process functions
2396 *
2397 *********************************************************/
rtl_find_ie(u8 * data,unsigned int len,u8 ie)2398 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie)
2399 {
2400 struct ieee80211_mgmt *mgmt = (void *)data;
2401 u8 *pos, *end;
2402
2403 pos = (u8 *)mgmt->u.beacon.variable;
2404 end = data + len;
2405 while (pos < end) {
2406 if (pos + 2 + pos[1] > end)
2407 return NULL;
2408
2409 if (pos[0] == ie)
2410 return pos;
2411
2412 pos += 2 + pos[1];
2413 }
2414 return NULL;
2415 }
2416
2417 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */
2418 /* 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)2419 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
2420 enum ieee80211_smps_mode smps,
2421 u8 *da, u8 *bssid)
2422 {
2423 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2424 struct sk_buff *skb;
2425 struct ieee80211_mgmt *action_frame;
2426
2427 /* 27 = header + category + action + smps mode */
2428 skb = dev_alloc_skb(27 + hw->extra_tx_headroom);
2429 if (!skb)
2430 return NULL;
2431
2432 skb_reserve(skb, hw->extra_tx_headroom);
2433 action_frame = skb_put_zero(skb, 27);
2434 memcpy(action_frame->da, da, ETH_ALEN);
2435 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN);
2436 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2437 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2438 IEEE80211_STYPE_ACTION);
2439 action_frame->u.action.category = WLAN_CATEGORY_HT;
2440 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS;
2441 switch (smps) {
2442 case IEEE80211_SMPS_AUTOMATIC:/* 0 */
2443 case IEEE80211_SMPS_NUM_MODES:/* 4 */
2444 WARN_ON(1);
2445 fallthrough;
2446 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
2447 action_frame->u.action.u.ht_smps.smps_control =
2448 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
2449 break;
2450 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/
2451 action_frame->u.action.u.ht_smps.smps_control =
2452 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */
2453 break;
2454 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/
2455 action_frame->u.action.u.ht_smps.smps_control =
2456 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */
2457 break;
2458 }
2459
2460 return skb;
2461 }
2462
rtl_send_smps_action(struct ieee80211_hw * hw,struct ieee80211_sta * sta,enum ieee80211_smps_mode smps)2463 int rtl_send_smps_action(struct ieee80211_hw *hw,
2464 struct ieee80211_sta *sta,
2465 enum ieee80211_smps_mode smps)
2466 {
2467 struct rtl_priv *rtlpriv = rtl_priv(hw);
2468 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2469 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
2470 struct sk_buff *skb = NULL;
2471 struct rtl_tcb_desc tcb_desc;
2472 u8 bssid[ETH_ALEN] = {0};
2473
2474 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
2475
2476 if (rtlpriv->mac80211.act_scanning)
2477 goto err_free;
2478
2479 if (!sta)
2480 goto err_free;
2481
2482 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
2483 goto err_free;
2484
2485 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
2486 goto err_free;
2487
2488 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP)
2489 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN);
2490 else
2491 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN);
2492
2493 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid);
2494 /* this is a type = mgmt * stype = action frame */
2495 if (skb) {
2496 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2497 struct rtl_sta_info *sta_entry =
2498 (struct rtl_sta_info *) sta->drv_priv;
2499 sta_entry->mimo_ps = smps;
2500 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */
2501
2502 info->control.rates[0].idx = 0;
2503 info->band = hw->conf.chandef.chan->band;
2504 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
2505 }
2506 return 1;
2507
2508 err_free:
2509 return 0;
2510 }
2511 EXPORT_SYMBOL(rtl_send_smps_action);
2512
rtl_phy_scan_operation_backup(struct ieee80211_hw * hw,u8 operation)2513 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
2514 {
2515 struct rtl_priv *rtlpriv = rtl_priv(hw);
2516 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
2517 enum io_type iotype;
2518
2519 if (!is_hal_stop(rtlhal)) {
2520 switch (operation) {
2521 case SCAN_OPT_BACKUP:
2522 iotype = IO_CMD_PAUSE_DM_BY_SCAN;
2523 rtlpriv->cfg->ops->set_hw_reg(hw,
2524 HW_VAR_IO_CMD,
2525 (u8 *)&iotype);
2526 break;
2527 case SCAN_OPT_RESTORE:
2528 iotype = IO_CMD_RESUME_DM_BY_SCAN;
2529 rtlpriv->cfg->ops->set_hw_reg(hw,
2530 HW_VAR_IO_CMD,
2531 (u8 *)&iotype);
2532 break;
2533 default:
2534 pr_err("Unknown Scan Backup operation.\n");
2535 break;
2536 }
2537 }
2538 }
2539 EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
2540
2541 /* because mac80211 have issues when can receive del ba
2542 * so here we just make a fake del_ba if we receive a ba_req
2543 * but rx_agg was opened to let mac80211 release some ba
2544 * related resources, so please this del_ba for tx
2545 */
rtl_make_del_ba(struct ieee80211_hw * hw,u8 * sa,u8 * bssid,u16 tid)2546 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
2547 u8 *sa, u8 *bssid, u16 tid)
2548 {
2549 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
2550 struct sk_buff *skb;
2551 struct ieee80211_mgmt *action_frame;
2552 u16 params;
2553
2554 /* 27 = header + category + action + smps mode */
2555 skb = dev_alloc_skb(34 + hw->extra_tx_headroom);
2556 if (!skb)
2557 return NULL;
2558
2559 skb_reserve(skb, hw->extra_tx_headroom);
2560 action_frame = skb_put_zero(skb, 34);
2561 memcpy(action_frame->sa, sa, ETH_ALEN);
2562 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN);
2563 memcpy(action_frame->bssid, bssid, ETH_ALEN);
2564 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2565 IEEE80211_STYPE_ACTION);
2566 action_frame->u.action.category = WLAN_CATEGORY_BACK;
2567 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
2568 params = (u16)(1 << 11); /* bit 11 initiator */
2569 params |= (u16)(tid << 12); /* bit 15:12 TID number */
2570
2571 action_frame->u.action.u.delba.params = cpu_to_le16(params);
2572 action_frame->u.action.u.delba.reason_code =
2573 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT);
2574
2575 return skb;
2576 }
2577
2578 /*********************************************************
2579 *
2580 * IOT functions
2581 *
2582 *********************************************************/
rtl_chk_vendor_ouisub(struct ieee80211_hw * hw,struct octet_string vendor_ie)2583 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw,
2584 struct octet_string vendor_ie)
2585 {
2586 struct rtl_priv *rtlpriv = rtl_priv(hw);
2587 bool matched = false;
2588 static u8 athcap_1[] = { 0x00, 0x03, 0x7F };
2589 static u8 athcap_2[] = { 0x00, 0x13, 0x74 };
2590 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 };
2591 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 };
2592 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 };
2593 static u8 racap[] = { 0x00, 0x0c, 0x43 };
2594 static u8 ciscocap[] = { 0x00, 0x40, 0x96 };
2595 static u8 marvcap[] = { 0x00, 0x50, 0x43 };
2596
2597 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 ||
2598 memcmp(vendor_ie.octet, athcap_2, 3) == 0) {
2599 rtlpriv->mac80211.vendor = PEER_ATH;
2600 matched = true;
2601 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 ||
2602 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 ||
2603 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) {
2604 rtlpriv->mac80211.vendor = PEER_BROAD;
2605 matched = true;
2606 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) {
2607 rtlpriv->mac80211.vendor = PEER_RAL;
2608 matched = true;
2609 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) {
2610 rtlpriv->mac80211.vendor = PEER_CISCO;
2611 matched = true;
2612 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) {
2613 rtlpriv->mac80211.vendor = PEER_MARV;
2614 matched = true;
2615 }
2616
2617 return matched;
2618 }
2619
rtl_find_221_ie(struct ieee80211_hw * hw,u8 * data,unsigned int len)2620 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data,
2621 unsigned int len)
2622 {
2623 struct ieee80211_mgmt *mgmt = (void *)data;
2624 struct octet_string vendor_ie;
2625 u8 *pos, *end;
2626
2627 pos = (u8 *)mgmt->u.beacon.variable;
2628 end = data + len;
2629 while (pos < end) {
2630 if (pos[0] == 221) {
2631 vendor_ie.length = pos[1];
2632 vendor_ie.octet = &pos[2];
2633 if (rtl_chk_vendor_ouisub(hw, vendor_ie))
2634 return true;
2635 }
2636
2637 if (pos + 2 + pos[1] > end)
2638 return false;
2639
2640 pos += 2 + pos[1];
2641 }
2642 return false;
2643 }
2644
rtl_recognize_peer(struct ieee80211_hw * hw,u8 * data,unsigned int len)2645 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len)
2646 {
2647 struct rtl_priv *rtlpriv = rtl_priv(hw);
2648 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
2649 struct ieee80211_hdr *hdr = (void *)data;
2650 u32 vendor = PEER_UNKNOWN;
2651
2652 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf };
2653 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 };
2654 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e };
2655 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc };
2656 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e };
2657 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 };
2658 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f };
2659 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf };
2660 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 };
2661 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 };
2662 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 };
2663 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 };
2664 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A };
2665 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 };
2666 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 };
2667 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 };
2668
2669 if (mac->opmode != NL80211_IFTYPE_STATION)
2670 return;
2671
2672 if (mac->link_state == MAC80211_NOLINK) {
2673 mac->vendor = PEER_UNKNOWN;
2674 return;
2675 }
2676
2677 if (mac->cnt_after_linked > 2)
2678 return;
2679
2680 /* check if this really is a beacon */
2681 if (!ieee80211_is_beacon(hdr->frame_control))
2682 return;
2683
2684 /* min. beacon length + FCS_LEN */
2685 if (len <= 40 + FCS_LEN)
2686 return;
2687
2688 /* and only beacons from the associated BSSID, please */
2689 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
2690 return;
2691
2692 if (rtl_find_221_ie(hw, data, len))
2693 vendor = mac->vendor;
2694
2695 if ((memcmp(mac->bssid, ap5_1, 3) == 0) ||
2696 (memcmp(mac->bssid, ap5_2, 3) == 0) ||
2697 (memcmp(mac->bssid, ap5_3, 3) == 0) ||
2698 (memcmp(mac->bssid, ap5_4, 3) == 0) ||
2699 (memcmp(mac->bssid, ap5_5, 3) == 0) ||
2700 (memcmp(mac->bssid, ap5_6, 3) == 0) ||
2701 vendor == PEER_ATH) {
2702 vendor = PEER_ATH;
2703 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n");
2704 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) ||
2705 (memcmp(mac->bssid, ap4_5, 3) == 0) ||
2706 (memcmp(mac->bssid, ap4_1, 3) == 0) ||
2707 (memcmp(mac->bssid, ap4_2, 3) == 0) ||
2708 (memcmp(mac->bssid, ap4_3, 3) == 0) ||
2709 vendor == PEER_RAL) {
2710 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n");
2711 vendor = PEER_RAL;
2712 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 ||
2713 vendor == PEER_CISCO) {
2714 vendor = PEER_CISCO;
2715 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n");
2716 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) ||
2717 (memcmp(mac->bssid, ap3_2, 3) == 0) ||
2718 (memcmp(mac->bssid, ap3_3, 3) == 0) ||
2719 vendor == PEER_BROAD) {
2720 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n");
2721 vendor = PEER_BROAD;
2722 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 ||
2723 vendor == PEER_MARV) {
2724 vendor = PEER_MARV;
2725 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n");
2726 }
2727
2728 mac->vendor = vendor;
2729 }
2730 EXPORT_SYMBOL_GPL(rtl_recognize_peer);
2731
2732 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
2733 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
2734 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
2735 MODULE_LICENSE("GPL");
2736 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");
2737
2738 struct rtl_global_var rtl_global_var = {};
2739 EXPORT_SYMBOL_GPL(rtl_global_var);
2740
rtl_core_module_init(void)2741 static int __init rtl_core_module_init(void)
2742 {
2743 BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION);
2744 BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION);
2745 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION);
2746 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1));
2747
2748 if (rtl_rate_control_register())
2749 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n");
2750
2751 /* add debugfs */
2752 rtl_debugfs_add_topdir();
2753
2754 /* init some global vars */
2755 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list);
2756 spin_lock_init(&rtl_global_var.glb_list_lock);
2757
2758 return 0;
2759 }
2760
rtl_core_module_exit(void)2761 static void __exit rtl_core_module_exit(void)
2762 {
2763 /*RC*/
2764 rtl_rate_control_unregister();
2765
2766 /* remove debugfs */
2767 rtl_debugfs_remove_topdir();
2768 }
2769
2770 module_init(rtl_core_module_init);
2771 module_exit(rtl_core_module_exit);
2772
