1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTW_WLAN_UTIL_C_
8
9 #include <linux/ieee80211.h>
10
11 #include <osdep_service.h>
12 #include <drv_types.h>
13 #include <wifi.h>
14
15 static const u8 ARTHEROS_OUI1[] = {0x00, 0x03, 0x7f};
16 static const u8 ARTHEROS_OUI2[] = {0x00, 0x13, 0x74};
17
18 static const u8 BROADCOM_OUI1[] = {0x00, 0x10, 0x18};
19 static const u8 BROADCOM_OUI2[] = {0x00, 0x0a, 0xf7};
20
21 static const u8 CISCO_OUI[] = {0x00, 0x40, 0x96};
22 static const u8 MARVELL_OUI[] = {0x00, 0x50, 0x43};
23 static const u8 RALINK_OUI[] = {0x00, 0x0c, 0x43};
24 static const u8 REALTEK_OUI[] = {0x00, 0xe0, 0x4c};
25 static const u8 AIRGOCAP_OUI[] = {0x00, 0x0a, 0xf5};
26 static const u8 EPIGRAM_OUI[] = {0x00, 0x90, 0x4c};
27
28 u8 REALTEK_96B_IE[] = {0x00, 0xe0, 0x4c, 0x02, 0x01, 0x20};
29
30 #define WAIT_FOR_BCN_TO_MIN (6000)
31 #define WAIT_FOR_BCN_TO_MAX (20000)
32
33 static const u8 rtw_basic_rate_cck[4] = {
34 IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK,
35 IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK,
36 IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK,
37 IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK
38 };
39
40 static const u8 rtw_basic_rate_ofdm[3] = {
41 IEEE80211_OFDM_RATE_6MB | IEEE80211_BASIC_RATE_MASK,
42 IEEE80211_OFDM_RATE_12MB | IEEE80211_BASIC_RATE_MASK,
43 IEEE80211_OFDM_RATE_24MB | IEEE80211_BASIC_RATE_MASK
44 };
45
46 static const u8 rtw_basic_rate_mix[7] = {
47 IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK,
48 IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK,
49 IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK,
50 IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK,
51 IEEE80211_OFDM_RATE_6MB | IEEE80211_BASIC_RATE_MASK,
52 IEEE80211_OFDM_RATE_12MB | IEEE80211_BASIC_RATE_MASK,
53 IEEE80211_OFDM_RATE_24MB | IEEE80211_BASIC_RATE_MASK
54 };
55
cckrates_included(unsigned char * rate,int ratelen)56 bool cckrates_included(unsigned char *rate, int ratelen)
57 {
58 int i;
59
60 for (i = 0; i < ratelen; i++) {
61 u8 r = rate[i] & 0x7f;
62
63 if (r == 2 || r == 4 || r == 11 || r == 22)
64 return true;
65 }
66 return false;
67 }
68
cckratesonly_included(unsigned char * rate,int ratelen)69 bool cckratesonly_included(unsigned char *rate, int ratelen)
70 {
71 int i;
72
73 for (i = 0; i < ratelen; i++) {
74 u8 r = rate[i] & 0x7f;
75
76 if (r != 2 && r != 4 && r != 11 && r != 22)
77 return false;
78 }
79 return true;
80 }
81
networktype_to_raid(unsigned char network_type)82 unsigned char networktype_to_raid(unsigned char network_type)
83 {
84 switch (network_type) {
85 case WIRELESS_11B:
86 return RATR_INX_WIRELESS_B;
87 case WIRELESS_11A:
88 case WIRELESS_11G:
89 return RATR_INX_WIRELESS_G;
90 case WIRELESS_11BG:
91 return RATR_INX_WIRELESS_GB;
92 case WIRELESS_11_24N:
93 case WIRELESS_11_5N:
94 return RATR_INX_WIRELESS_N;
95 case WIRELESS_11A_5N:
96 case WIRELESS_11G_24N:
97 return RATR_INX_WIRELESS_NG;
98 case WIRELESS_11BG_24N:
99 return RATR_INX_WIRELESS_NGB;
100 default:
101 return RATR_INX_WIRELESS_GB;
102 }
103 }
104
judge_network_type(struct adapter * padapter,unsigned char * rate,int ratelen)105 u8 judge_network_type(struct adapter *padapter, unsigned char *rate, int ratelen)
106 {
107 u8 network_type = 0;
108 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
109 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
110
111 if (pmlmeinfo->HT_enable)
112 network_type = WIRELESS_11_24N;
113
114 if (cckratesonly_included(rate, ratelen))
115 network_type |= WIRELESS_11B;
116 else if (cckrates_included(rate, ratelen))
117 network_type |= WIRELESS_11BG;
118 else
119 network_type |= WIRELESS_11G;
120
121 return network_type;
122 }
123
ratetbl_val_2wifirate(unsigned char rate)124 static unsigned char ratetbl_val_2wifirate(unsigned char rate)
125 {
126 switch (rate & 0x7f) {
127 case 0:
128 return IEEE80211_CCK_RATE_1MB;
129 case 1:
130 return IEEE80211_CCK_RATE_2MB;
131 case 2:
132 return IEEE80211_CCK_RATE_5MB;
133 case 3:
134 return IEEE80211_CCK_RATE_11MB;
135 case 4:
136 return IEEE80211_OFDM_RATE_6MB;
137 case 5:
138 return IEEE80211_OFDM_RATE_9MB;
139 case 6:
140 return IEEE80211_OFDM_RATE_12MB;
141 case 7:
142 return IEEE80211_OFDM_RATE_18MB;
143 case 8:
144 return IEEE80211_OFDM_RATE_24MB;
145 case 9:
146 return IEEE80211_OFDM_RATE_36MB;
147 case 10:
148 return IEEE80211_OFDM_RATE_48MB;
149 case 11:
150 return IEEE80211_OFDM_RATE_54MB;
151 default:
152 return 0;
153 }
154 }
155
is_basicrate(struct adapter * padapter,unsigned char rate)156 static bool is_basicrate(struct adapter *padapter, unsigned char rate)
157 {
158 int i;
159 unsigned char val;
160 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
161
162 for (i = 0; i < NumRates; i++) {
163 val = pmlmeext->basicrate[i];
164
165 if ((val != 0xff) && (val != 0xfe)) {
166 if (rate == ratetbl_val_2wifirate(val))
167 return true;
168 }
169 }
170 return false;
171 }
172
ratetbl2rateset(struct adapter * padapter,unsigned char * rateset)173 static unsigned int ratetbl2rateset(struct adapter *padapter, unsigned char *rateset)
174 {
175 int i;
176 unsigned char rate;
177 unsigned int len = 0;
178 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
179
180 for (i = 0; i < NumRates; i++) {
181 rate = pmlmeext->datarate[i];
182
183 switch (rate) {
184 case 0xff:
185 return len;
186 case 0xfe:
187 continue;
188 default:
189 rate = ratetbl_val_2wifirate(rate);
190
191 if (is_basicrate(padapter, rate))
192 rate |= IEEE80211_BASIC_RATE_MASK;
193
194 rateset[len] = rate;
195 len++;
196 break;
197 }
198 }
199 return len;
200 }
201
get_rate_set(struct adapter * padapter,unsigned char * pbssrate,int * bssrate_len)202 void get_rate_set(struct adapter *padapter, unsigned char *pbssrate, int *bssrate_len)
203 {
204 unsigned char supportedrates[NumRates];
205
206 memset(supportedrates, 0, NumRates);
207 *bssrate_len = ratetbl2rateset(padapter, supportedrates);
208 memcpy(pbssrate, supportedrates, *bssrate_len);
209 }
210
UpdateBrateTbl(struct adapter * Adapter,u8 * mbrate)211 void UpdateBrateTbl(struct adapter *Adapter, u8 *mbrate)
212 {
213 u8 i;
214 u8 rate;
215
216 /* 1M, 2M, 5.5M, 11M, 6M, 12M, 24M are mandatory. */
217 for (i = 0; i < NDIS_802_11_LENGTH_RATES_EX; i++) {
218 rate = mbrate[i] & 0x7f;
219 switch (rate) {
220 case IEEE80211_CCK_RATE_1MB:
221 case IEEE80211_CCK_RATE_2MB:
222 case IEEE80211_CCK_RATE_5MB:
223 case IEEE80211_CCK_RATE_11MB:
224 case IEEE80211_OFDM_RATE_6MB:
225 case IEEE80211_OFDM_RATE_12MB:
226 case IEEE80211_OFDM_RATE_24MB:
227 mbrate[i] |= IEEE80211_BASIC_RATE_MASK;
228 break;
229 }
230 }
231 }
232
UpdateBrateTblForSoftAP(u8 * bssrateset,u32 bssratelen)233 void UpdateBrateTblForSoftAP(u8 *bssrateset, u32 bssratelen)
234 {
235 u8 i;
236 u8 rate;
237
238 for (i = 0; i < bssratelen; i++) {
239 rate = bssrateset[i] & 0x7f;
240 switch (rate) {
241 case IEEE80211_CCK_RATE_1MB:
242 case IEEE80211_CCK_RATE_2MB:
243 case IEEE80211_CCK_RATE_5MB:
244 case IEEE80211_CCK_RATE_11MB:
245 bssrateset[i] |= IEEE80211_BASIC_RATE_MASK;
246 break;
247 }
248 }
249 }
250
Save_DM_Func_Flag(struct adapter * padapter)251 void Save_DM_Func_Flag(struct adapter *padapter)
252 {
253 u8 saveflag = true;
254
255 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&saveflag));
256 }
257
Restore_DM_Func_Flag(struct adapter * padapter)258 void Restore_DM_Func_Flag(struct adapter *padapter)
259 {
260 u8 saveflag = false;
261
262 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&saveflag));
263 }
264
Switch_DM_Func(struct adapter * padapter,u32 mode,u8 enable)265 void Switch_DM_Func(struct adapter *padapter, u32 mode, u8 enable)
266 {
267 if (enable)
268 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_SET, (u8 *)(&mode));
269 else
270 rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_CLR, (u8 *)(&mode));
271 }
272
Set_MSR(struct adapter * padapter,u8 type)273 void Set_MSR(struct adapter *padapter, u8 type)
274 {
275 rtw_hal_set_hwreg(padapter, HW_VAR_MEDIA_STATUS, (u8 *)(&type));
276 }
277
rtw_get_oper_ch(struct adapter * adapter)278 inline u8 rtw_get_oper_ch(struct adapter *adapter)
279 {
280 return adapter->mlmeextpriv.oper_channel;
281 }
282
rtw_set_oper_ch(struct adapter * adapter,u8 ch)283 inline void rtw_set_oper_ch(struct adapter *adapter, u8 ch)
284 {
285 adapter->mlmeextpriv.oper_channel = ch;
286 }
287
rtw_set_oper_bw(struct adapter * adapter,u8 bw)288 inline void rtw_set_oper_bw(struct adapter *adapter, u8 bw)
289 {
290 adapter->mlmeextpriv.oper_bwmode = bw;
291 }
292
rtw_set_oper_choffset(struct adapter * adapter,u8 offset)293 inline void rtw_set_oper_choffset(struct adapter *adapter, u8 offset)
294 {
295 adapter->mlmeextpriv.oper_ch_offset = offset;
296 }
297
SelectChannel(struct adapter * padapter,unsigned char channel)298 void SelectChannel(struct adapter *padapter, unsigned char channel)
299 {
300 /* saved channel info */
301 rtw_set_oper_ch(padapter, channel);
302 rtw_hal_set_chan(padapter, channel);
303 }
304
SetBWMode(struct adapter * padapter,unsigned short bwmode,unsigned char channel_offset)305 void SetBWMode(struct adapter *padapter, unsigned short bwmode,
306 unsigned char channel_offset)
307 {
308 /* saved bw info */
309 rtw_set_oper_bw(padapter, bwmode);
310 rtw_set_oper_choffset(padapter, channel_offset);
311
312 rtw_hal_set_bwmode(padapter, (enum ht_channel_width)bwmode, channel_offset);
313 }
314
set_channel_bwmode(struct adapter * padapter,unsigned char channel,unsigned char channel_offset,unsigned short bwmode)315 void set_channel_bwmode(struct adapter *padapter, unsigned char channel, unsigned char channel_offset, unsigned short bwmode)
316 {
317 u8 center_ch;
318
319 if ((bwmode == HT_CHANNEL_WIDTH_20) ||
320 (channel_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE)) {
321 /* SelectChannel(padapter, channel); */
322 center_ch = channel;
323 } else {
324 /* switch to the proper channel */
325 if (channel_offset == HAL_PRIME_CHNL_OFFSET_LOWER) {
326 /* SelectChannel(padapter, channel + 2); */
327 center_ch = channel + 2;
328 } else {
329 /* SelectChannel(padapter, channel - 2); */
330 center_ch = channel - 2;
331 }
332 }
333
334 /* set Channel */
335 /* saved channel/bw info */
336 rtw_set_oper_ch(padapter, channel);
337 rtw_set_oper_bw(padapter, bwmode);
338 rtw_set_oper_choffset(padapter, channel_offset);
339
340 rtw_hal_set_chan(padapter, center_ch); /* set center channel */
341 SetBWMode(padapter, bwmode, channel_offset);
342 }
343
get_beacon_interval(struct wlan_bssid_ex * bss)344 u16 get_beacon_interval(struct wlan_bssid_ex *bss)
345 {
346 __le16 val;
347
348 memcpy((unsigned char *)&val, rtw_get_beacon_interval_from_ie(bss->ies), 2);
349
350 return le16_to_cpu(val);
351 }
352
is_client_associated_to_ap(struct adapter * padapter)353 int is_client_associated_to_ap(struct adapter *padapter)
354 {
355 struct mlme_ext_priv *pmlmeext;
356 struct mlme_ext_info *pmlmeinfo;
357
358 if (!padapter)
359 return _FAIL;
360
361 pmlmeext = &padapter->mlmeextpriv;
362 pmlmeinfo = &pmlmeext->mlmext_info;
363
364 if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) &&
365 (pmlmeinfo->state & 0x03) == WIFI_FW_STATION_STATE)
366 return true;
367 else
368 return _FAIL;
369 }
370
is_client_associated_to_ibss(struct adapter * padapter)371 int is_client_associated_to_ibss(struct adapter *padapter)
372 {
373 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
374 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
375
376 if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) &&
377 (pmlmeinfo->state & 0x03) == WIFI_FW_ADHOC_STATE)
378 return true;
379 else
380 return _FAIL;
381 }
382
is_IBSS_empty(struct adapter * padapter)383 int is_IBSS_empty(struct adapter *padapter)
384 {
385 unsigned int i;
386 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
387 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
388
389 for (i = IBSS_START_MAC_ID; i < NUM_STA; i++) {
390 if (pmlmeinfo->FW_sta_info[i].status == 1)
391 return _FAIL;
392 }
393 return true;
394 }
395
decide_wait_for_beacon_timeout(unsigned int bcn_interval)396 unsigned int decide_wait_for_beacon_timeout(unsigned int bcn_interval)
397 {
398 if ((bcn_interval << 2) < WAIT_FOR_BCN_TO_MIN)
399 return WAIT_FOR_BCN_TO_MIN;
400 else if ((bcn_interval << 2) > WAIT_FOR_BCN_TO_MAX)
401 return WAIT_FOR_BCN_TO_MAX;
402 else
403 return bcn_interval << 2;
404 }
405
invalidate_cam_all(struct adapter * padapter)406 void invalidate_cam_all(struct adapter *padapter)
407 {
408 rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, NULL);
409 }
410
write_cam(struct adapter * padapter,u8 entry,u16 ctrl,u8 * mac,u8 * key)411 void write_cam(struct adapter *padapter, u8 entry, u16 ctrl, u8 *mac, u8 *key)
412 {
413 unsigned int i, val, addr;
414 int j;
415 u32 cam_val[2];
416
417 addr = entry << 3;
418
419 for (j = 5; j >= 0; j--) {
420 switch (j) {
421 case 0:
422 val = ctrl | (mac[0] << 16) | (mac[1] << 24);
423 break;
424 case 1:
425 val = mac[2] | (mac[3] << 8) | (mac[4] << 16) | (mac[5] << 24);
426 break;
427 default:
428 i = (j - 2) << 2;
429 val = key[i] | (key[i + 1] << 8) | (key[i + 2] << 16) |
430 (key[i + 3] << 24);
431 break;
432 }
433
434 cam_val[0] = val;
435 cam_val[1] = addr + (unsigned int)j;
436
437 rtw_hal_set_hwreg(padapter, HW_VAR_CAM_WRITE, (u8 *)cam_val);
438 }
439 }
440
clear_cam_entry(struct adapter * padapter,u8 entry)441 void clear_cam_entry(struct adapter *padapter, u8 entry)
442 {
443 u8 null_sta[ETH_ALEN] = {};
444 u8 null_key[16] = {};
445
446 write_cam(padapter, entry, 0, null_sta, null_key);
447 }
448
allocate_fw_sta_entry(struct adapter * padapter)449 int allocate_fw_sta_entry(struct adapter *padapter)
450 {
451 unsigned int mac_id;
452 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
453 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
454
455 for (mac_id = IBSS_START_MAC_ID; mac_id < NUM_STA; mac_id++) {
456 if (pmlmeinfo->FW_sta_info[mac_id].status == 0) {
457 pmlmeinfo->FW_sta_info[mac_id].status = 1;
458 pmlmeinfo->FW_sta_info[mac_id].retry = 0;
459 break;
460 }
461 }
462
463 return mac_id;
464 }
465
flush_all_cam_entry(struct adapter * padapter)466 void flush_all_cam_entry(struct adapter *padapter)
467 {
468 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
469 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
470
471 rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, NULL);
472
473 memset((u8 *)(pmlmeinfo->FW_sta_info), 0, sizeof(pmlmeinfo->FW_sta_info));
474 }
475
WMM_param_handler(struct adapter * padapter,struct ndis_802_11_var_ie * pIE)476 int WMM_param_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
477 {
478 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
479 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
480 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
481
482 if (pmlmepriv->qospriv.qos_option == 0) {
483 pmlmeinfo->WMM_enable = 0;
484 return _FAIL;
485 }
486
487 pmlmeinfo->WMM_enable = 1;
488 memcpy(&pmlmeinfo->WMM_param, pIE->data + 6, sizeof(struct WMM_para_element));
489 return true;
490 }
491
WMMOnAssocRsp(struct adapter * padapter)492 void WMMOnAssocRsp(struct adapter *padapter)
493 {
494 u8 ACI, ACM, AIFS, ECWMin, ECWMax, aSifsTime;
495 u8 acm_mask;
496 u16 TXOP;
497 u32 acParm, i;
498 u32 edca[4], inx[4];
499 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
500 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
501 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
502 struct registry_priv *pregpriv = &padapter->registrypriv;
503
504 if (pmlmeinfo->WMM_enable == 0) {
505 padapter->mlmepriv.acm_mask = 0;
506 return;
507 }
508
509 acm_mask = 0;
510
511 if (pmlmeext->cur_wireless_mode == WIRELESS_11B)
512 aSifsTime = 10;
513 else
514 aSifsTime = 16;
515
516 for (i = 0; i < 4; i++) {
517 ACI = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 5) & 0x03;
518 ACM = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 4) & 0x01;
519
520 /* AIFS = AIFSN * slot time + SIFS - r2t phy delay */
521 AIFS = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN & 0x0f) * pmlmeinfo->slotTime + aSifsTime;
522
523 ECWMin = pmlmeinfo->WMM_param.ac_param[i].CW & 0x0f;
524 ECWMax = (pmlmeinfo->WMM_param.ac_param[i].CW & 0xf0) >> 4;
525 TXOP = le16_to_cpu(pmlmeinfo->WMM_param.ac_param[i].TXOP_limit);
526
527 acParm = AIFS | (ECWMin << 8) | (ECWMax << 12) | (TXOP << 16);
528
529 switch (ACI) {
530 case 0x0:
531 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BE, (u8 *)(&acParm));
532 acm_mask |= (ACM ? BIT(1) : 0);
533 edca[XMIT_BE_QUEUE] = acParm;
534 break;
535 case 0x1:
536 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acParm));
537 edca[XMIT_BK_QUEUE] = acParm;
538 break;
539 case 0x2:
540 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VI, (u8 *)(&acParm));
541 acm_mask |= (ACM ? BIT(2) : 0);
542 edca[XMIT_VI_QUEUE] = acParm;
543 break;
544 case 0x3:
545 rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VO, (u8 *)(&acParm));
546 acm_mask |= (ACM ? BIT(3) : 0);
547 edca[XMIT_VO_QUEUE] = acParm;
548 break;
549 }
550
551 DBG_88E("WMM(%x): %x, %x\n", ACI, ACM, acParm);
552 }
553
554 if (padapter->registrypriv.acm_method == 1)
555 rtw_hal_set_hwreg(padapter, HW_VAR_ACM_CTRL, (u8 *)(&acm_mask));
556 else
557 padapter->mlmepriv.acm_mask = acm_mask;
558
559 inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
560
561 if (pregpriv->wifi_spec == 1) {
562 u32 j, change_inx = false;
563
564 /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
565 for (i = 0; i < 4; i++) {
566 for (j = i + 1; j < 4; j++) {
567 /* compare CW and AIFS */
568 if ((edca[j] & 0xFFFF) < (edca[i] & 0xFFFF)) {
569 change_inx = true;
570 } else if ((edca[j] & 0xFFFF) == (edca[i] & 0xFFFF)) {
571 /* compare TXOP */
572 if ((edca[j] >> 16) > (edca[i] >> 16))
573 change_inx = true;
574 }
575
576 if (change_inx) {
577 swap(edca[i], edca[j]);
578 swap(inx[i], inx[j]);
579 change_inx = false;
580 }
581 }
582 }
583 }
584
585 for (i = 0; i < 4; i++) {
586 pxmitpriv->wmm_para_seq[i] = inx[i];
587 DBG_88E("wmm_para_seq(%d): %d\n", i, pxmitpriv->wmm_para_seq[i]);
588 }
589 }
590
bwmode_update_check(struct adapter * padapter,struct ndis_802_11_var_ie * pIE)591 static void bwmode_update_check(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
592 {
593 unsigned char new_bwmode;
594 unsigned char new_ch_offset;
595 struct HT_info_element *pHT_info;
596 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
597 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
598 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
599 struct registry_priv *pregistrypriv = &padapter->registrypriv;
600 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
601
602 if (!pIE)
603 return;
604
605 if (!phtpriv)
606 return;
607
608 if (pIE->Length > sizeof(struct HT_info_element))
609 return;
610
611 pHT_info = (struct HT_info_element *)pIE->data;
612
613 if ((pHT_info->infos[0] & BIT(2)) && pregistrypriv->cbw40_enable) {
614 new_bwmode = HT_CHANNEL_WIDTH_40;
615
616 switch (pHT_info->infos[0] & 0x3) {
617 case 1:
618 new_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
619 break;
620 case 3:
621 new_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
622 break;
623 default:
624 new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
625 break;
626 }
627 } else {
628 new_bwmode = HT_CHANNEL_WIDTH_20;
629 new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
630 }
631
632 if ((new_bwmode != pmlmeext->cur_bwmode) ||
633 (new_ch_offset != pmlmeext->cur_ch_offset)) {
634 pmlmeinfo->bwmode_updated = true;
635
636 pmlmeext->cur_bwmode = new_bwmode;
637 pmlmeext->cur_ch_offset = new_ch_offset;
638
639 /* update HT info also */
640 HT_info_handler(padapter, pIE);
641 } else {
642 pmlmeinfo->bwmode_updated = false;
643 }
644
645 if (pmlmeinfo->bwmode_updated) {
646 struct sta_info *psta;
647 struct wlan_bssid_ex *cur_network = &pmlmeinfo->network;
648 struct sta_priv *pstapriv = &padapter->stapriv;
649
650 /* update ap's stainfo */
651 psta = rtw_get_stainfo(pstapriv, cur_network->MacAddress);
652 if (psta) {
653 struct ht_priv *phtpriv_sta = &psta->htpriv;
654
655 if (phtpriv_sta->ht_option) {
656 /* bwmode */
657 phtpriv_sta->bwmode = pmlmeext->cur_bwmode;
658 phtpriv_sta->ch_offset = pmlmeext->cur_ch_offset;
659 } else {
660 phtpriv_sta->bwmode = HT_CHANNEL_WIDTH_20;
661 phtpriv_sta->ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
662 }
663 }
664 }
665 }
666
HT_caps_handler(struct adapter * padapter,struct ndis_802_11_var_ie * pIE)667 void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
668 {
669 unsigned int i;
670 u8 max_AMPDU_len, min_MPDU_spacing;
671 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
672 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
673 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
674 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
675 u8 *HT_cap = (u8 *)(&pmlmeinfo->HT_caps);
676
677 if (!pIE)
678 return;
679
680 if (!phtpriv->ht_option)
681 return;
682
683 pmlmeinfo->HT_caps_enable = 1;
684
685 for (i = 0; i < (pIE->Length); i++) {
686 if (i != 2) {
687 /* Got the endian issue here. */
688 HT_cap[i] &= (pIE->data[i]);
689 } else {
690 /* modify from fw by Thomas 2010/11/17 */
691 if ((pmlmeinfo->HT_caps.ampdu_params_info & 0x3) > (pIE->data[i] & 0x3))
692 max_AMPDU_len = pIE->data[i] & 0x3;
693 else
694 max_AMPDU_len = pmlmeinfo->HT_caps.ampdu_params_info & 0x3;
695
696 if ((pmlmeinfo->HT_caps.ampdu_params_info & 0x1c) > (pIE->data[i] & 0x1c))
697 min_MPDU_spacing = pmlmeinfo->HT_caps.ampdu_params_info & 0x1c;
698 else
699 min_MPDU_spacing = pIE->data[i] & 0x1c;
700
701 pmlmeinfo->HT_caps.ampdu_params_info = max_AMPDU_len | min_MPDU_spacing;
702 }
703 }
704
705 /* update the MCS rates */
706 for (i = 0; i < 16; i++)
707 ((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
708 }
709
HT_info_handler(struct adapter * padapter,struct ndis_802_11_var_ie * pIE)710 void HT_info_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
711 {
712 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
713 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
714 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
715 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
716
717 if (!pIE)
718 return;
719
720 if (!phtpriv->ht_option)
721 return;
722
723 if (pIE->Length > sizeof(struct HT_info_element))
724 return;
725
726 pmlmeinfo->HT_info_enable = 1;
727 memcpy(&pmlmeinfo->HT_info, pIE->data, pIE->Length);
728 }
729
HTOnAssocRsp(struct adapter * padapter)730 void HTOnAssocRsp(struct adapter *padapter)
731 {
732 unsigned char max_AMPDU_len;
733 unsigned char min_MPDU_spacing;
734 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
735 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
736
737 DBG_88E("%s\n", __func__);
738
739 if ((pmlmeinfo->HT_info_enable) && (pmlmeinfo->HT_caps_enable)) {
740 pmlmeinfo->HT_enable = 1;
741 } else {
742 pmlmeinfo->HT_enable = 0;
743 return;
744 }
745
746 /* handle A-MPDU parameter field
747 *
748 * AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
749 * AMPDU_para [4:2]:Min MPDU Start Spacing
750 */
751 max_AMPDU_len = pmlmeinfo->HT_caps.ampdu_params_info & 0x03;
752
753 min_MPDU_spacing = (pmlmeinfo->HT_caps.ampdu_params_info & 0x1c) >> 2;
754
755 rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_MIN_SPACE, (u8 *)(&min_MPDU_spacing));
756
757 rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_FACTOR, (u8 *)(&max_AMPDU_len));
758 }
759
ERP_IE_handler(struct adapter * padapter,struct ndis_802_11_var_ie * pIE)760 void ERP_IE_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
761 {
762 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
763 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
764
765 if (pIE->Length > 1)
766 return;
767
768 pmlmeinfo->ERP_enable = 1;
769 memcpy(&pmlmeinfo->ERP_IE, pIE->data, pIE->Length);
770 }
771
VCS_update(struct adapter * padapter,struct sta_info * psta)772 void VCS_update(struct adapter *padapter, struct sta_info *psta)
773 {
774 struct registry_priv *pregpriv = &padapter->registrypriv;
775 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
776 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
777
778 switch (pregpriv->vrtl_carrier_sense) { /* 0:off 1:on 2:auto */
779 case 0: /* off */
780 psta->rtsen = 0;
781 psta->cts2self = 0;
782 break;
783 case 1: /* on */
784 if (pregpriv->vcs_type == 1) { /* 1:RTS/CTS 2:CTS to self */
785 psta->rtsen = 1;
786 psta->cts2self = 0;
787 } else {
788 psta->rtsen = 0;
789 psta->cts2self = 1;
790 }
791 break;
792 case 2: /* auto */
793 default:
794 if ((pmlmeinfo->ERP_enable) && (pmlmeinfo->ERP_IE & BIT(1))) {
795 if (pregpriv->vcs_type == 1) {
796 psta->rtsen = 1;
797 psta->cts2self = 0;
798 } else {
799 psta->rtsen = 0;
800 psta->cts2self = 1;
801 }
802 } else {
803 psta->rtsen = 0;
804 psta->cts2self = 0;
805 }
806 break;
807 }
808 }
809
rtw_check_bcn_info(struct adapter * Adapter,u8 * pframe,u32 packet_len)810 int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len)
811 {
812 unsigned int len;
813 unsigned char *p;
814 unsigned short val16, subtype;
815 struct wlan_network *cur_network = &Adapter->mlmepriv.cur_network;
816 u16 wpa_len = 0, rsn_len = 0;
817 u8 encryp_protocol = 0;
818 struct wlan_bssid_ex *bssid;
819 int group_cipher = 0, pairwise_cipher = 0, is_8021x = 0;
820 unsigned char *pbuf;
821 u32 wpa_ielen = 0;
822 u8 *pbssid = GetAddr3Ptr(pframe);
823 struct HT_info_element *pht_info = NULL;
824 u32 bcn_channel;
825 unsigned short ht_cap_info;
826 unsigned char ht_info_infos_0;
827 int ssid_len;
828
829 if (!is_client_associated_to_ap(Adapter))
830 return true;
831
832 len = packet_len - sizeof(struct ieee80211_hdr_3addr);
833
834 if (len > MAX_IE_SZ) {
835 DBG_88E("%s IE too long for survey event\n", __func__);
836 return _FAIL;
837 }
838
839 if (memcmp(cur_network->network.MacAddress, pbssid, 6)) {
840 DBG_88E("Oops: rtw_check_network_encrypt linked but recv other bssid bcn\n%pM %pM\n",
841 (pbssid), (cur_network->network.MacAddress));
842 return true;
843 }
844
845 bssid = kzalloc(sizeof(struct wlan_bssid_ex), GFP_ATOMIC);
846 if (!bssid)
847 return _FAIL;
848
849 subtype = GetFrameSubType(pframe) >> 4;
850
851 if (subtype == WIFI_BEACON)
852 bssid->Reserved[0] = 1;
853
854 bssid->Length = sizeof(struct wlan_bssid_ex) - MAX_IE_SZ + len;
855
856 /* below is to copy the information element */
857 bssid->ie_length = len;
858 memcpy(bssid->ies, (pframe + sizeof(struct ieee80211_hdr_3addr)), bssid->ie_length);
859
860 /* check bw and channel offset */
861 /* parsing HT_CAP_IE */
862 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
863 if (p && len > 0) {
864 struct ieee80211_ht_cap *ht_cap =
865 (struct ieee80211_ht_cap *)(p + 2);
866
867 ht_cap_info = le16_to_cpu(ht_cap->cap_info);
868 } else {
869 ht_cap_info = 0;
870 }
871 /* parsing HT_INFO_IE */
872 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
873 if (p && len > 0) {
874 pht_info = (struct HT_info_element *)(p + 2);
875 ht_info_infos_0 = pht_info->infos[0];
876 } else {
877 ht_info_infos_0 = 0;
878 }
879 if (ht_cap_info != cur_network->BcnInfo.ht_cap_info ||
880 ((ht_info_infos_0 & 0x03) != (cur_network->BcnInfo.ht_info_infos_0 & 0x03))) {
881 DBG_88E("%s bcn now: ht_cap_info:%x ht_info_infos_0:%x\n", __func__,
882 ht_cap_info, ht_info_infos_0);
883 DBG_88E("%s bcn link: ht_cap_info:%x ht_info_infos_0:%x\n", __func__,
884 cur_network->BcnInfo.ht_cap_info, cur_network->BcnInfo.ht_info_infos_0);
885 DBG_88E("%s bw mode change, disconnect\n", __func__);
886 /* bcn_info_update */
887 cur_network->BcnInfo.ht_cap_info = ht_cap_info;
888 cur_network->BcnInfo.ht_info_infos_0 = ht_info_infos_0;
889 /* to do : need to check that whether modify related register of BB or not */
890 /* goto _mismatch; */
891 }
892
893 /* Checking for channel */
894 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, _DSSET_IE_, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
895 if (p) {
896 bcn_channel = *(p + 2);
897 } else {/* In 5G, some ap do not have DSSET IE checking HT info for channel */
898 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
899 if (pht_info) {
900 bcn_channel = pht_info->primary_channel;
901 } else { /* we don't find channel IE, so don't check it */
902 DBG_88E("Oops: %s we don't find channel IE, so don't check it\n", __func__);
903 bcn_channel = Adapter->mlmeextpriv.cur_channel;
904 }
905 }
906 if (bcn_channel != Adapter->mlmeextpriv.cur_channel) {
907 DBG_88E("%s beacon channel:%d cur channel:%d disconnect\n", __func__,
908 bcn_channel, Adapter->mlmeextpriv.cur_channel);
909 goto _mismatch;
910 }
911
912 /* checking SSID */
913 ssid_len = 0;
914 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, _SSID_IE_, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
915 if (p) {
916 ssid_len = *(p + 1);
917 if (ssid_len > NDIS_802_11_LENGTH_SSID)
918 ssid_len = 0;
919 }
920 memcpy(bssid->ssid.ssid, (p + 2), ssid_len);
921 bssid->ssid.ssid_length = ssid_len;
922
923 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s bssid.ssid.ssid:%s bssid.ssid.ssid_length:%d "
924 "cur_network->network.ssid.ssid:%s len:%d\n", __func__, bssid->ssid.ssid,
925 bssid->ssid.ssid_length, cur_network->network.ssid.ssid,
926 cur_network->network.ssid.ssid_length));
927
928 if (memcmp(bssid->ssid.ssid, cur_network->network.ssid.ssid, 32) ||
929 bssid->ssid.ssid_length != cur_network->network.ssid.ssid_length) {
930 if (bssid->ssid.ssid[0] != '\0' && bssid->ssid.ssid_length != 0) { /* not hidden ssid */
931 DBG_88E("%s(), SSID is not match return FAIL\n", __func__);
932 goto _mismatch;
933 }
934 }
935
936 /* check encryption info */
937 val16 = rtw_get_capability((struct wlan_bssid_ex *)bssid);
938
939 if (val16 & BIT(4))
940 bssid->Privacy = 1;
941 else
942 bssid->Privacy = 0;
943
944 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
945 ("%s(): cur_network->network.Privacy is %d, bssid.Privacy is %d\n",
946 __func__, cur_network->network.Privacy, bssid->Privacy));
947 if (cur_network->network.Privacy != bssid->Privacy) {
948 DBG_88E("%s(), privacy is not match return FAIL\n", __func__);
949 goto _mismatch;
950 }
951
952 rtw_get_sec_ie(bssid->ies, bssid->ie_length, NULL, &rsn_len, NULL, &wpa_len);
953
954 if (rsn_len > 0) {
955 encryp_protocol = ENCRYP_PROTOCOL_WPA2;
956 } else if (wpa_len > 0) {
957 encryp_protocol = ENCRYP_PROTOCOL_WPA;
958 } else {
959 if (bssid->Privacy)
960 encryp_protocol = ENCRYP_PROTOCOL_WEP;
961 }
962
963 if (cur_network->BcnInfo.encryp_protocol != encryp_protocol) {
964 DBG_88E("%s(): encryption protocol is not match , return FAIL\n", __func__);
965 goto _mismatch;
966 }
967
968 if (encryp_protocol == ENCRYP_PROTOCOL_WPA || encryp_protocol == ENCRYP_PROTOCOL_WPA2) {
969 pbuf = rtw_get_wpa_ie(&bssid->ies[12], &wpa_ielen,
970 bssid->ie_length - 12);
971 if (pbuf && (wpa_ielen > 0)) {
972 if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen + 2, &group_cipher, &pairwise_cipher, &is_8021x)) {
973 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
974 ("%s pnetwork->pairwise_cipher: %d, group_cipher is %d, is_8021x is %d\n", __func__,
975 pairwise_cipher, group_cipher, is_8021x));
976 }
977 } else {
978 pbuf = rtw_get_wpa2_ie(&bssid->ies[12], &wpa_ielen,
979 bssid->ie_length - 12);
980
981 if (pbuf && (wpa_ielen > 0)) {
982 if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen + 2, &group_cipher, &pairwise_cipher, &is_8021x)) {
983 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
984 ("%s pnetwork->pairwise_cipher: %d, pnetwork->group_cipher is %d, is_802x is %d\n",
985 __func__, pairwise_cipher, group_cipher, is_8021x));
986 }
987 }
988 }
989
990 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
991 ("%s cur_network->group_cipher is %d: %d\n", __func__, cur_network->BcnInfo.group_cipher, group_cipher));
992 if (pairwise_cipher != cur_network->BcnInfo.pairwise_cipher || group_cipher != cur_network->BcnInfo.group_cipher) {
993 DBG_88E("%s pairwise_cipher(%x:%x) or group_cipher(%x:%x) is not match , return FAIL\n", __func__,
994 pairwise_cipher, cur_network->BcnInfo.pairwise_cipher,
995 group_cipher, cur_network->BcnInfo.group_cipher);
996 goto _mismatch;
997 }
998
999 if (is_8021x != cur_network->BcnInfo.is_8021x) {
1000 DBG_88E("%s authentication is not match , return FAIL\n", __func__);
1001 goto _mismatch;
1002 }
1003 }
1004
1005 kfree(bssid);
1006 return _SUCCESS;
1007
1008 _mismatch:
1009 kfree(bssid);
1010 return _FAIL;
1011 }
1012
update_beacon_info(struct adapter * padapter,u8 * pframe,uint pkt_len,struct sta_info * psta)1013 void update_beacon_info(struct adapter *padapter, u8 *pframe, uint pkt_len, struct sta_info *psta)
1014 {
1015 unsigned int i;
1016 unsigned int len;
1017 struct ndis_802_11_var_ie *pIE;
1018
1019 len = pkt_len - (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN);
1020
1021 for (i = 0; i < len;) {
1022 pIE = (struct ndis_802_11_var_ie *)(pframe + (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN) + i);
1023
1024 switch (pIE->ElementID) {
1025 case _HT_EXTRA_INFO_IE_: /* HT info */
1026 bwmode_update_check(padapter, pIE);
1027 break;
1028 case _ERPINFO_IE_:
1029 ERP_IE_handler(padapter, pIE);
1030 VCS_update(padapter, psta);
1031 break;
1032 default:
1033 break;
1034 }
1035
1036 i += (pIE->Length + 2);
1037 }
1038 }
1039
is_ap_in_tkip(struct adapter * padapter)1040 unsigned int is_ap_in_tkip(struct adapter *padapter)
1041 {
1042 u32 i;
1043 struct ndis_802_11_var_ie *pIE;
1044 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1045 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1046 struct wlan_bssid_ex *cur_network = &pmlmeinfo->network;
1047
1048 if (rtw_get_capability((struct wlan_bssid_ex *)cur_network) & WLAN_CAPABILITY_PRIVACY) {
1049 for (i = sizeof(struct ndis_802_11_fixed_ie); i < pmlmeinfo->network.ie_length;) {
1050 pIE = (struct ndis_802_11_var_ie *)(pmlmeinfo->network.ies + i);
1051
1052 switch (pIE->ElementID) {
1053 case _VENDOR_SPECIFIC_IE_:
1054 if ((!memcmp(pIE->data, RTW_WPA_OUI, 4)) && (!memcmp((pIE->data + 12), WPA_TKIP_CIPHER, 4)))
1055 return true;
1056 break;
1057 case _RSN_IE_2_:
1058 if (!memcmp((pIE->data + 8), RSN_TKIP_CIPHER, 4))
1059 return true;
1060 default:
1061 break;
1062 }
1063
1064 i += (pIE->Length + 2);
1065 }
1066 return false;
1067 } else {
1068 return false;
1069 }
1070 }
1071
wifirate2_ratetbl_inx(unsigned char rate)1072 static int wifirate2_ratetbl_inx(unsigned char rate)
1073 {
1074 rate = rate & 0x7f;
1075
1076 switch (rate) {
1077 case 108:
1078 return 11;
1079 case 96:
1080 return 10;
1081 case 72:
1082 return 9;
1083 case 48:
1084 return 8;
1085 case 36:
1086 return 7;
1087 case 24:
1088 return 6;
1089 case 18:
1090 return 5;
1091 case 12:
1092 return 4;
1093 case 22:
1094 return 3;
1095 case 11:
1096 return 2;
1097 case 4:
1098 return 1;
1099 case 2:
1100 return 0;
1101 default:
1102 return 0;
1103 }
1104 }
1105
update_basic_rate(unsigned char * ptn,unsigned int ptn_sz)1106 unsigned int update_basic_rate(unsigned char *ptn, unsigned int ptn_sz)
1107 {
1108 unsigned int i, num_of_rate;
1109 unsigned int mask = 0;
1110
1111 num_of_rate = min_t(unsigned int, ptn_sz, NumRates);
1112
1113 for (i = 0; i < num_of_rate; i++) {
1114 if ((*(ptn + i)) & 0x80)
1115 mask |= 0x1 << wifirate2_ratetbl_inx(*(ptn + i));
1116 }
1117 return mask;
1118 }
1119
update_supported_rate(unsigned char * ptn,unsigned int ptn_sz)1120 unsigned int update_supported_rate(unsigned char *ptn, unsigned int ptn_sz)
1121 {
1122 unsigned int i, num_of_rate;
1123 unsigned int mask = 0;
1124
1125 num_of_rate = min_t(unsigned int, ptn_sz, NumRates);
1126
1127 for (i = 0; i < num_of_rate; i++)
1128 mask |= 0x1 << wifirate2_ratetbl_inx(*(ptn + i));
1129 return mask;
1130 }
1131
update_MSC_rate(struct ieee80211_ht_cap * pHT_caps)1132 unsigned int update_MSC_rate(struct ieee80211_ht_cap *pHT_caps)
1133 {
1134 return (pHT_caps->mcs.rx_mask[0] << 12) |
1135 (pHT_caps->mcs.rx_mask[1] << 20);
1136 }
1137
support_short_GI(struct adapter * padapter,struct ieee80211_ht_cap * pHT_caps)1138 int support_short_GI(struct adapter *padapter, struct ieee80211_ht_cap *pHT_caps)
1139 {
1140 unsigned char bit_offset;
1141 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1142 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1143
1144 if (!(pmlmeinfo->HT_enable))
1145 return _FAIL;
1146
1147 if (pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK)
1148 return _FAIL;
1149
1150 bit_offset = (pmlmeext->cur_bwmode & HT_CHANNEL_WIDTH_40) ? 6 : 5;
1151
1152 if (__le16_to_cpu(pHT_caps->cap_info) & (0x1 << bit_offset))
1153 return _SUCCESS;
1154 else
1155 return _FAIL;
1156 }
1157
get_highest_rate_idx(u32 mask)1158 unsigned char get_highest_rate_idx(u32 mask)
1159 {
1160 int i;
1161 unsigned char rate_idx = 0;
1162
1163 for (i = 27; i >= 0; i--) {
1164 if (mask & BIT(i)) {
1165 rate_idx = i;
1166 break;
1167 }
1168 }
1169 return rate_idx;
1170 }
1171
Update_RA_Entry(struct adapter * padapter,u32 mac_id)1172 void Update_RA_Entry(struct adapter *padapter, u32 mac_id)
1173 {
1174 rtw_hal_update_ra_mask(padapter, mac_id, 0);
1175 }
1176
set_sta_rate(struct adapter * padapter,struct sta_info * psta)1177 void set_sta_rate(struct adapter *padapter, struct sta_info *psta)
1178 {
1179 /* rate adaptive */
1180 Update_RA_Entry(padapter, psta->mac_id);
1181 }
1182
1183 /* Update RRSR and Rate for USERATE */
update_tx_basic_rate(struct adapter * padapter,u8 wirelessmode)1184 void update_tx_basic_rate(struct adapter *padapter, u8 wirelessmode)
1185 {
1186 unsigned char supported_rates[NDIS_802_11_LENGTH_RATES_EX];
1187
1188 memset(supported_rates, 0, NDIS_802_11_LENGTH_RATES_EX);
1189
1190 if ((wirelessmode & WIRELESS_11B) && (wirelessmode == WIRELESS_11B))
1191 memcpy(supported_rates, rtw_basic_rate_cck, 4);
1192 else if (wirelessmode & WIRELESS_11B)
1193 memcpy(supported_rates, rtw_basic_rate_mix, 7);
1194 else
1195 memcpy(supported_rates, rtw_basic_rate_ofdm, 3);
1196
1197 if (wirelessmode & WIRELESS_11B)
1198 update_mgnt_tx_rate(padapter, IEEE80211_CCK_RATE_1MB);
1199 else
1200 update_mgnt_tx_rate(padapter, IEEE80211_OFDM_RATE_6MB);
1201
1202 rtw_hal_set_hwreg(padapter, HW_VAR_BASIC_RATE, supported_rates);
1203 }
1204
check_assoc_AP(u8 * pframe,uint len)1205 unsigned char check_assoc_AP(u8 *pframe, uint len)
1206 {
1207 unsigned int i;
1208 struct ndis_802_11_var_ie *pIE;
1209 u8 epigram_vendor_flag;
1210 u8 ralink_vendor_flag;
1211
1212 epigram_vendor_flag = 0;
1213 ralink_vendor_flag = 0;
1214
1215 for (i = sizeof(struct ndis_802_11_fixed_ie); i < len;) {
1216 pIE = (struct ndis_802_11_var_ie *)(pframe + i);
1217
1218 switch (pIE->ElementID) {
1219 case _VENDOR_SPECIFIC_IE_:
1220 if ((!memcmp(pIE->data, ARTHEROS_OUI1, 3)) ||
1221 (!memcmp(pIE->data, ARTHEROS_OUI2, 3))) {
1222 DBG_88E("link to Artheros AP\n");
1223 return HT_IOT_PEER_ATHEROS;
1224 } else if ((!memcmp(pIE->data, BROADCOM_OUI1, 3)) ||
1225 (!memcmp(pIE->data, BROADCOM_OUI2, 3))) {
1226 DBG_88E("link to Broadcom AP\n");
1227 return HT_IOT_PEER_BROADCOM;
1228 } else if (!memcmp(pIE->data, MARVELL_OUI, 3)) {
1229 DBG_88E("link to Marvell AP\n");
1230 return HT_IOT_PEER_MARVELL;
1231 } else if (!memcmp(pIE->data, RALINK_OUI, 3)) {
1232 if (!ralink_vendor_flag) {
1233 ralink_vendor_flag = 1;
1234 } else {
1235 DBG_88E("link to Ralink AP\n");
1236 return HT_IOT_PEER_RALINK;
1237 }
1238 } else if (!memcmp(pIE->data, CISCO_OUI, 3)) {
1239 DBG_88E("link to Cisco AP\n");
1240 return HT_IOT_PEER_CISCO;
1241 } else if (!memcmp(pIE->data, REALTEK_OUI, 3)) {
1242 DBG_88E("link to Realtek 96B\n");
1243 return HT_IOT_PEER_REALTEK;
1244 } else if (!memcmp(pIE->data, AIRGOCAP_OUI, 3)) {
1245 DBG_88E("link to Airgo Cap\n");
1246 return HT_IOT_PEER_AIRGO;
1247 } else if (!memcmp(pIE->data, EPIGRAM_OUI, 3)) {
1248 epigram_vendor_flag = 1;
1249 if (ralink_vendor_flag) {
1250 DBG_88E("link to Tenda W311R AP\n");
1251 return HT_IOT_PEER_TENDA;
1252 } else {
1253 DBG_88E("Capture EPIGRAM_OUI\n");
1254 }
1255 } else {
1256 break;
1257 }
1258
1259 default:
1260 break;
1261 }
1262 i += (pIE->Length + 2);
1263 }
1264
1265 if (ralink_vendor_flag && !epigram_vendor_flag) {
1266 DBG_88E("link to Ralink AP\n");
1267 return HT_IOT_PEER_RALINK;
1268 } else if (ralink_vendor_flag && epigram_vendor_flag) {
1269 DBG_88E("link to Tenda W311R AP\n");
1270 return HT_IOT_PEER_TENDA;
1271 } else {
1272 DBG_88E("link to new AP\n");
1273 return HT_IOT_PEER_UNKNOWN;
1274 }
1275 }
1276
update_IOT_info(struct adapter * padapter)1277 void update_IOT_info(struct adapter *padapter)
1278 {
1279 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1280 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1281
1282 switch (pmlmeinfo->assoc_AP_vendor) {
1283 case HT_IOT_PEER_MARVELL:
1284 pmlmeinfo->turboMode_cts2self = 1;
1285 pmlmeinfo->turboMode_rtsen = 0;
1286 break;
1287 case HT_IOT_PEER_RALINK:
1288 pmlmeinfo->turboMode_cts2self = 0;
1289 pmlmeinfo->turboMode_rtsen = 1;
1290 /* disable high power */
1291 Switch_DM_Func(padapter, (u32)(~DYNAMIC_BB_DYNAMIC_TXPWR),
1292 false);
1293 break;
1294 case HT_IOT_PEER_REALTEK:
1295 /* disable high power */
1296 Switch_DM_Func(padapter, (u32)(~DYNAMIC_BB_DYNAMIC_TXPWR),
1297 false);
1298 break;
1299 default:
1300 pmlmeinfo->turboMode_cts2self = 0;
1301 pmlmeinfo->turboMode_rtsen = 1;
1302 break;
1303 }
1304 }
1305
update_capinfo(struct adapter * Adapter,u16 updateCap)1306 void update_capinfo(struct adapter *Adapter, u16 updateCap)
1307 {
1308 struct mlme_ext_priv *pmlmeext = &Adapter->mlmeextpriv;
1309 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1310 bool ShortPreamble;
1311
1312 /* Check preamble mode, 2005.01.06, by rcnjko. */
1313 /* Mark to update preamble value forever, 2008.03.18 by lanhsin */
1314
1315 if (updateCap & cShortPreamble) { /* Short Preamble */
1316 if (pmlmeinfo->preamble_mode != PREAMBLE_SHORT) { /* PREAMBLE_LONG or PREAMBLE_AUTO */
1317 ShortPreamble = true;
1318 pmlmeinfo->preamble_mode = PREAMBLE_SHORT;
1319 rtw_hal_set_hwreg(Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble);
1320 }
1321 } else { /* Long Preamble */
1322 if (pmlmeinfo->preamble_mode != PREAMBLE_LONG) { /* PREAMBLE_SHORT or PREAMBLE_AUTO */
1323 ShortPreamble = false;
1324 pmlmeinfo->preamble_mode = PREAMBLE_LONG;
1325 rtw_hal_set_hwreg(Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble);
1326 }
1327 }
1328
1329 if (updateCap & cIBSS) {
1330 /* Filen: See 802.11-2007 p.91 */
1331 pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1332 } else { /* Filen: See 802.11-2007 p.90 */
1333 if (pmlmeext->cur_wireless_mode & (WIRELESS_11G | WIRELESS_11_24N)) {
1334 if (updateCap & cShortSlotTime) { /* Short Slot Time */
1335 if (pmlmeinfo->slotTime != SHORT_SLOT_TIME)
1336 pmlmeinfo->slotTime = SHORT_SLOT_TIME;
1337 } else { /* Long Slot Time */
1338 if (pmlmeinfo->slotTime != NON_SHORT_SLOT_TIME)
1339 pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1340 }
1341 } else if (pmlmeext->cur_wireless_mode & (WIRELESS_11A | WIRELESS_11_5N)) {
1342 pmlmeinfo->slotTime = SHORT_SLOT_TIME;
1343 } else {
1344 /* B Mode */
1345 pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1346 }
1347 }
1348
1349 rtw_hal_set_hwreg(Adapter, HW_VAR_SLOT_TIME, &pmlmeinfo->slotTime);
1350 }
1351
update_wireless_mode(struct adapter * padapter)1352 void update_wireless_mode(struct adapter *padapter)
1353 {
1354 int ratelen, network_type = 0;
1355 u32 SIFS_Timer;
1356 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1357 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1358 struct wlan_bssid_ex *cur_network = &pmlmeinfo->network;
1359 unsigned char *rate = cur_network->SupportedRates;
1360
1361 ratelen = rtw_get_rateset_len(cur_network->SupportedRates);
1362
1363 if (pmlmeinfo->HT_info_enable && pmlmeinfo->HT_caps_enable)
1364 pmlmeinfo->HT_enable = 1;
1365
1366 if (pmlmeinfo->HT_enable)
1367 network_type = WIRELESS_11_24N;
1368
1369 if (cckratesonly_included(rate, ratelen))
1370 network_type |= WIRELESS_11B;
1371 else if (cckrates_included(rate, ratelen))
1372 network_type |= WIRELESS_11BG;
1373 else
1374 network_type |= WIRELESS_11G;
1375
1376 pmlmeext->cur_wireless_mode = network_type & padapter->registrypriv.wireless_mode;
1377
1378 SIFS_Timer = 0x0a0a0808;/* 0x0808 -> for CCK, 0x0a0a -> for OFDM */
1379 /* change this value if having IOT issues. */
1380
1381 rtw_hal_set_hwreg(padapter, HW_VAR_RESP_SIFS, (u8 *)&SIFS_Timer);
1382
1383 update_mgnt_tx_rate(padapter,
1384 pmlmeext->cur_wireless_mode & WIRELESS_11B ?
1385 IEEE80211_CCK_RATE_1MB : IEEE80211_OFDM_RATE_6MB);
1386 }
1387
update_bmc_sta_support_rate(struct adapter * padapter,u32 mac_id)1388 void update_bmc_sta_support_rate(struct adapter *padapter, u32 mac_id)
1389 {
1390 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1391 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1392
1393 if (pmlmeext->cur_wireless_mode & WIRELESS_11B) {
1394 /* Only B, B/G, and B/G/N AP could use CCK rate */
1395 memcpy((pmlmeinfo->FW_sta_info[mac_id].SupportedRates), rtw_basic_rate_cck, 4);
1396 } else {
1397 memcpy((pmlmeinfo->FW_sta_info[mac_id].SupportedRates), rtw_basic_rate_ofdm, 3);
1398 }
1399 }
1400
update_sta_support_rate(struct adapter * padapter,u8 * pvar_ie,uint var_ie_len,int cam_idx)1401 int update_sta_support_rate(struct adapter *padapter, u8 *pvar_ie, uint var_ie_len, int cam_idx)
1402 {
1403 unsigned int ie_len;
1404 struct ndis_802_11_var_ie *pIE;
1405 int supportRateNum = 0;
1406 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1407 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1408
1409 pIE = (struct ndis_802_11_var_ie *)rtw_get_ie(pvar_ie, _SUPPORTEDRATES_IE_, &ie_len, var_ie_len);
1410 if (!pIE)
1411 return _FAIL;
1412 if (ie_len > NDIS_802_11_LENGTH_RATES_EX)
1413 return _FAIL;
1414
1415 memcpy(pmlmeinfo->FW_sta_info[cam_idx].SupportedRates, pIE->data, ie_len);
1416 supportRateNum = ie_len;
1417
1418 pIE = (struct ndis_802_11_var_ie *)rtw_get_ie(pvar_ie, _EXT_SUPPORTEDRATES_IE_, &ie_len, var_ie_len);
1419 if (pIE) {
1420 if (supportRateNum + ie_len > NDIS_802_11_LENGTH_RATES_EX)
1421 return _FAIL;
1422 memcpy((pmlmeinfo->FW_sta_info[cam_idx].SupportedRates + supportRateNum), pIE->data, ie_len);
1423 }
1424
1425 return _SUCCESS;
1426 }
1427
process_addba_req(struct adapter * padapter,u8 * paddba_req,u8 * addr)1428 void process_addba_req(struct adapter *padapter, u8 *paddba_req, u8 *addr)
1429 {
1430 struct sta_info *psta;
1431 u16 tid;
1432 u16 param;
1433 struct recv_reorder_ctrl *preorder_ctrl;
1434 struct sta_priv *pstapriv = &padapter->stapriv;
1435 struct ADDBA_request *preq = (struct ADDBA_request *)paddba_req;
1436 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1437 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1438
1439 psta = rtw_get_stainfo(pstapriv, addr);
1440
1441 if (psta) {
1442 param = le16_to_cpu(preq->BA_para_set);
1443 tid = (param >> 2) & 0x0f;
1444 preorder_ctrl = &psta->recvreorder_ctrl[tid];
1445 preorder_ctrl->indicate_seq = 0xffff;
1446 preorder_ctrl->enable = pmlmeinfo->accept_addba_req;
1447 }
1448 }
1449
update_TSF(struct mlme_ext_priv * pmlmeext,u8 * pframe,uint len)1450 void update_TSF(struct mlme_ext_priv *pmlmeext, u8 *pframe, uint len)
1451 {
1452 u8 *pIE;
1453 __le32 *pbuf;
1454
1455 pIE = pframe + sizeof(struct ieee80211_hdr_3addr);
1456 pbuf = (__le32 *)pIE;
1457
1458 pmlmeext->TSFValue = le32_to_cpu(*(pbuf + 1));
1459
1460 pmlmeext->TSFValue = pmlmeext->TSFValue << 32;
1461
1462 pmlmeext->TSFValue |= le32_to_cpu(*pbuf);
1463 }
1464
correct_TSF(struct adapter * padapter,struct mlme_ext_priv * pmlmeext)1465 void correct_TSF(struct adapter *padapter, struct mlme_ext_priv *pmlmeext)
1466 {
1467 rtw_hal_set_hwreg(padapter, HW_VAR_CORRECT_TSF, NULL);
1468 }
1469
