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1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3  *
4  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5  *
6  ******************************************************************************/
7 
8 #include <drv_types.h>
9 #include <rtw_debug.h>
10 #include <hal_com_h2c.h>
11 
12 static unsigned char ARTHEROS_OUI1[] = {0x00, 0x03, 0x7f};
13 static unsigned char ARTHEROS_OUI2[] = {0x00, 0x13, 0x74};
14 
15 static unsigned char BROADCOM_OUI1[] = {0x00, 0x10, 0x18};
16 static unsigned char BROADCOM_OUI2[] = {0x00, 0x0a, 0xf7};
17 static unsigned char BROADCOM_OUI3[] = {0x00, 0x05, 0xb5};
18 
19 static unsigned char CISCO_OUI[] = {0x00, 0x40, 0x96};
20 static unsigned char MARVELL_OUI[] = {0x00, 0x50, 0x43};
21 static unsigned char RALINK_OUI[] = {0x00, 0x0c, 0x43};
22 static unsigned char REALTEK_OUI[] = {0x00, 0xe0, 0x4c};
23 static unsigned char AIRGOCAP_OUI[] = {0x00, 0x0a, 0xf5};
24 static unsigned char RSN_TKIP_CIPHER[4] = {0x00, 0x0f, 0xac, 0x02};
25 static unsigned char WPA_TKIP_CIPHER[4] = {0x00, 0x50, 0xf2, 0x02};
26 
27 /* define WAIT_FOR_BCN_TO_MIN	(3000) */
28 #define WAIT_FOR_BCN_TO_MIN	(6000)
29 #define WAIT_FOR_BCN_TO_MAX	(20000)
30 
31 #define DISCONNECT_BY_CHK_BCN_FAIL_OBSERV_PERIOD_IN_MS 1000
32 #define DISCONNECT_BY_CHK_BCN_FAIL_THRESHOLD 3
33 
34 static u8 rtw_basic_rate_cck[4] = {
35 	IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK,
36 	IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK,
37 	IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK,
38 	IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK
39 };
40 
41 static u8 rtw_basic_rate_ofdm[3] = {
42 	IEEE80211_OFDM_RATE_6MB | IEEE80211_BASIC_RATE_MASK,
43 	IEEE80211_OFDM_RATE_12MB | IEEE80211_BASIC_RATE_MASK,
44 	IEEE80211_OFDM_RATE_24MB | IEEE80211_BASIC_RATE_MASK
45 };
46 
networktype_to_raid_ex(struct adapter * adapter,struct sta_info * psta)47 u8 networktype_to_raid_ex(struct adapter *adapter, struct sta_info *psta)
48 {
49 	u8 raid;
50 
51 	switch (psta->wireless_mode) {
52 	case WIRELESS_11B:
53 		raid = RATEID_IDX_B;
54 		break;
55 	case WIRELESS_11G:
56 		raid = RATEID_IDX_G;
57 		break;
58 	case WIRELESS_11BG:
59 		raid = RATEID_IDX_BG;
60 		break;
61 	case WIRELESS_11_24N:
62 	case WIRELESS_11G_24N:
63 		raid = RATEID_IDX_GN_N1SS;
64 		break;
65 	case WIRELESS_11B_24N:
66 	case WIRELESS_11BG_24N:
67 		if (psta->bw_mode == CHANNEL_WIDTH_20) {
68 			raid = RATEID_IDX_BGN_20M_1SS_BN;
69 		} else {
70 			raid = RATEID_IDX_BGN_40M_1SS;
71 		}
72 		break;
73 	default:
74 		raid = RATEID_IDX_BGN_40M_2SS;
75 		break;
76 	}
77 	return raid;
78 }
79 
80 unsigned char ratetbl_val_2wifirate(unsigned char rate);
ratetbl_val_2wifirate(unsigned char rate)81 unsigned char ratetbl_val_2wifirate(unsigned char rate)
82 {
83 	switch (rate & 0x7f) {
84 	case 0:
85 		return IEEE80211_CCK_RATE_1MB;
86 	case 1:
87 		return IEEE80211_CCK_RATE_2MB;
88 	case 2:
89 		return IEEE80211_CCK_RATE_5MB;
90 	case 3:
91 		return IEEE80211_CCK_RATE_11MB;
92 	case 4:
93 		return IEEE80211_OFDM_RATE_6MB;
94 	case 5:
95 		return IEEE80211_OFDM_RATE_9MB;
96 	case 6:
97 		return IEEE80211_OFDM_RATE_12MB;
98 	case 7:
99 		return IEEE80211_OFDM_RATE_18MB;
100 	case 8:
101 		return IEEE80211_OFDM_RATE_24MB;
102 	case 9:
103 		return IEEE80211_OFDM_RATE_36MB;
104 	case 10:
105 		return IEEE80211_OFDM_RATE_48MB;
106 	case 11:
107 		return IEEE80211_OFDM_RATE_54MB;
108 	default:
109 		return 0;
110 	}
111 }
112 
113 int is_basicrate(struct adapter *padapter, unsigned char rate);
is_basicrate(struct adapter * padapter,unsigned char rate)114 int is_basicrate(struct adapter *padapter, unsigned char rate)
115 {
116 	int i;
117 	unsigned char val;
118 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
119 
120 	for (i = 0; i < NumRates; i++) {
121 		val = pmlmeext->basicrate[i];
122 
123 		if ((val != 0xff) && (val != 0xfe))
124 			if (rate == ratetbl_val_2wifirate(val))
125 				return true;
126 	}
127 
128 	return false;
129 }
130 
131 unsigned int ratetbl2rateset(struct adapter *padapter, unsigned char *rateset);
ratetbl2rateset(struct adapter * padapter,unsigned char * rateset)132 unsigned int ratetbl2rateset(struct adapter *padapter, unsigned char *rateset)
133 {
134 	int i;
135 	unsigned char rate;
136 	unsigned int	len = 0;
137 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
138 
139 	for (i = 0; i < NumRates; i++) {
140 		rate = pmlmeext->datarate[i];
141 
142 		switch (rate) {
143 		case 0xff:
144 			return len;
145 
146 		case 0xfe:
147 			continue;
148 
149 		default:
150 			rate = ratetbl_val_2wifirate(rate);
151 
152 			if (is_basicrate(padapter, rate) == true)
153 				rate |= IEEE80211_BASIC_RATE_MASK;
154 
155 			rateset[len] = rate;
156 			len++;
157 			break;
158 		}
159 	}
160 	return len;
161 }
162 
get_rate_set(struct adapter * padapter,unsigned char * pbssrate,int * bssrate_len)163 void get_rate_set(struct adapter *padapter, unsigned char *pbssrate, int *bssrate_len)
164 {
165 	unsigned char supportedrates[NumRates];
166 
167 	memset(supportedrates, 0, NumRates);
168 	*bssrate_len = ratetbl2rateset(padapter, supportedrates);
169 	memcpy(pbssrate, supportedrates, *bssrate_len);
170 }
171 
set_mcs_rate_by_mask(u8 * mcs_set,u32 mask)172 void set_mcs_rate_by_mask(u8 *mcs_set, u32 mask)
173 {
174 	u8 mcs_rate_1r = (u8)(mask&0xff);
175 	u8 mcs_rate_2r = (u8)((mask>>8)&0xff);
176 	u8 mcs_rate_3r = (u8)((mask>>16)&0xff);
177 	u8 mcs_rate_4r = (u8)((mask>>24)&0xff);
178 
179 	mcs_set[0] &= mcs_rate_1r;
180 	mcs_set[1] &= mcs_rate_2r;
181 	mcs_set[2] &= mcs_rate_3r;
182 	mcs_set[3] &= mcs_rate_4r;
183 }
184 
UpdateBrateTbl(struct adapter * Adapter,u8 * mBratesOS)185 void UpdateBrateTbl(struct adapter *Adapter, u8 *mBratesOS)
186 {
187 	u8 i;
188 	u8 rate;
189 
190 	/*  1M, 2M, 5.5M, 11M, 6M, 12M, 24M are mandatory. */
191 	for (i = 0; i < NDIS_802_11_LENGTH_RATES_EX; i++) {
192 		rate = mBratesOS[i] & 0x7f;
193 		switch (rate) {
194 		case IEEE80211_CCK_RATE_1MB:
195 		case IEEE80211_CCK_RATE_2MB:
196 		case IEEE80211_CCK_RATE_5MB:
197 		case IEEE80211_CCK_RATE_11MB:
198 		case IEEE80211_OFDM_RATE_6MB:
199 		case IEEE80211_OFDM_RATE_12MB:
200 		case IEEE80211_OFDM_RATE_24MB:
201 			mBratesOS[i] |= IEEE80211_BASIC_RATE_MASK;
202 			break;
203 		}
204 	}
205 }
206 
UpdateBrateTblForSoftAP(u8 * bssrateset,u32 bssratelen)207 void UpdateBrateTblForSoftAP(u8 *bssrateset, u32 bssratelen)
208 {
209 	u8 i;
210 	u8 rate;
211 
212 	for (i = 0; i < bssratelen; i++) {
213 		rate = bssrateset[i] & 0x7f;
214 		switch (rate) {
215 		case IEEE80211_CCK_RATE_1MB:
216 		case IEEE80211_CCK_RATE_2MB:
217 		case IEEE80211_CCK_RATE_5MB:
218 		case IEEE80211_CCK_RATE_11MB:
219 			bssrateset[i] |= IEEE80211_BASIC_RATE_MASK;
220 			break;
221 		}
222 	}
223 }
224 
Save_DM_Func_Flag(struct adapter * padapter)225 void Save_DM_Func_Flag(struct adapter *padapter)
226 {
227 	u8 bSaveFlag = true;
228 
229 	rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
230 }
231 
Restore_DM_Func_Flag(struct adapter * padapter)232 void Restore_DM_Func_Flag(struct adapter *padapter)
233 {
234 	u8 bSaveFlag = false;
235 
236 	rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&bSaveFlag));
237 }
238 
Switch_DM_Func(struct adapter * padapter,u32 mode,u8 enable)239 void Switch_DM_Func(struct adapter *padapter, u32 mode, u8 enable)
240 {
241 	if (enable == true)
242 		rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_SET, (u8 *)(&mode));
243 	else
244 		rtw_hal_set_hwreg(padapter, HW_VAR_DM_FUNC_CLR, (u8 *)(&mode));
245 }
246 
Set_MSR(struct adapter * padapter,u8 type)247 void Set_MSR(struct adapter *padapter, u8 type)
248 {
249 	rtw_hal_set_hwreg(padapter, HW_VAR_MEDIA_STATUS, (u8 *)(&type));
250 }
251 
rtw_get_oper_ch(struct adapter * adapter)252 inline u8 rtw_get_oper_ch(struct adapter *adapter)
253 {
254 	return adapter_to_dvobj(adapter)->oper_channel;
255 }
256 
rtw_set_oper_ch(struct adapter * adapter,u8 ch)257 inline void rtw_set_oper_ch(struct adapter *adapter, u8 ch)
258 {
259 #ifdef DBG_CH_SWITCH
260 	const int len = 128;
261 	char msg[128] = {0};
262 	int cnt = 0;
263 	int i = 0;
264 #endif  /* DBG_CH_SWITCH */
265 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
266 
267 	if (dvobj->oper_channel != ch) {
268 		dvobj->on_oper_ch_time = jiffies;
269 
270 #ifdef DBG_CH_SWITCH
271 		cnt += scnprintf(msg+cnt, len-cnt, "switch to ch %3u", ch);
272 
273 		for (i = 0; i < dvobj->iface_nums; i++) {
274 			struct adapter *iface = dvobj->padapters[i];
275 
276 			cnt += scnprintf(msg+cnt, len-cnt, " [%s:", ADPT_ARG(iface));
277 			if (iface->mlmeextpriv.cur_channel == ch)
278 				cnt += scnprintf(msg+cnt, len-cnt, "C");
279 			else
280 				cnt += scnprintf(msg+cnt, len-cnt, "_");
281 			if (iface->wdinfo.listen_channel == ch && !rtw_p2p_chk_state(&iface->wdinfo, P2P_STATE_NONE))
282 				cnt += scnprintf(msg+cnt, len-cnt, "L");
283 			else
284 				cnt += scnprintf(msg+cnt, len-cnt, "_");
285 			cnt += scnprintf(msg+cnt, len-cnt, "]");
286 		}
287 
288 #endif /* DBG_CH_SWITCH */
289 	}
290 
291 	dvobj->oper_channel = ch;
292 }
293 
rtw_get_oper_bw(struct adapter * adapter)294 inline u8 rtw_get_oper_bw(struct adapter *adapter)
295 {
296 	return adapter_to_dvobj(adapter)->oper_bwmode;
297 }
298 
rtw_set_oper_bw(struct adapter * adapter,u8 bw)299 inline void rtw_set_oper_bw(struct adapter *adapter, u8 bw)
300 {
301 	adapter_to_dvobj(adapter)->oper_bwmode = bw;
302 }
303 
rtw_get_oper_choffset(struct adapter * adapter)304 inline u8 rtw_get_oper_choffset(struct adapter *adapter)
305 {
306 	return adapter_to_dvobj(adapter)->oper_ch_offset;
307 }
308 
rtw_set_oper_choffset(struct adapter * adapter,u8 offset)309 inline void rtw_set_oper_choffset(struct adapter *adapter, u8 offset)
310 {
311 	adapter_to_dvobj(adapter)->oper_ch_offset = offset;
312 }
313 
rtw_get_center_ch(u8 channel,u8 chnl_bw,u8 chnl_offset)314 u8 rtw_get_center_ch(u8 channel, u8 chnl_bw, u8 chnl_offset)
315 {
316 	u8 center_ch = channel;
317 
318 	if (chnl_bw == CHANNEL_WIDTH_40) {
319 		if (chnl_offset == HAL_PRIME_CHNL_OFFSET_LOWER)
320 			center_ch = channel + 2;
321 		else
322 			center_ch = channel - 2;
323 	}
324 
325 	return center_ch;
326 }
327 
rtw_get_on_cur_ch_time(struct adapter * adapter)328 inline unsigned long rtw_get_on_cur_ch_time(struct adapter *adapter)
329 {
330 	if (adapter->mlmeextpriv.cur_channel == adapter_to_dvobj(adapter)->oper_channel)
331 		return adapter_to_dvobj(adapter)->on_oper_ch_time;
332 	else
333 		return 0;
334 }
335 
SelectChannel(struct adapter * padapter,unsigned char channel)336 void SelectChannel(struct adapter *padapter, unsigned char channel)
337 {
338 	if (mutex_lock_interruptible(&(adapter_to_dvobj(padapter)->setch_mutex)))
339 		return;
340 
341 	/* saved channel info */
342 	rtw_set_oper_ch(padapter, channel);
343 
344 	rtw_hal_set_chan(padapter, channel);
345 
346 	mutex_unlock(&(adapter_to_dvobj(padapter)->setch_mutex));
347 }
348 
set_channel_bwmode(struct adapter * padapter,unsigned char channel,unsigned char channel_offset,unsigned short bwmode)349 void set_channel_bwmode(struct adapter *padapter, unsigned char channel, unsigned char channel_offset, unsigned short bwmode)
350 {
351 	u8 center_ch, chnl_offset80 = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
352 
353 	center_ch = rtw_get_center_ch(channel, bwmode, channel_offset);
354 
355 
356 	/* set Channel */
357 	if (mutex_lock_interruptible(&(adapter_to_dvobj(padapter)->setch_mutex)))
358 		return;
359 
360 	/* saved channel/bw info */
361 	rtw_set_oper_ch(padapter, channel);
362 	rtw_set_oper_bw(padapter, bwmode);
363 	rtw_set_oper_choffset(padapter, channel_offset);
364 
365 	rtw_hal_set_chnl_bw(padapter, center_ch, bwmode, channel_offset, chnl_offset80); /*  set center channel */
366 
367 	mutex_unlock(&(adapter_to_dvobj(padapter)->setch_mutex));
368 }
369 
get_my_bssid(struct wlan_bssid_ex * pnetwork)370 inline u8 *get_my_bssid(struct wlan_bssid_ex *pnetwork)
371 {
372 	return pnetwork->mac_address;
373 }
374 
get_beacon_interval(struct wlan_bssid_ex * bss)375 u16 get_beacon_interval(struct wlan_bssid_ex *bss)
376 {
377 	__le16 val;
378 
379 	memcpy((unsigned char *)&val, rtw_get_beacon_interval_from_ie(bss->ies), 2);
380 
381 	return le16_to_cpu(val);
382 }
383 
is_client_associated_to_ap(struct adapter * padapter)384 int is_client_associated_to_ap(struct adapter *padapter)
385 {
386 	struct mlme_ext_priv *pmlmeext;
387 	struct mlme_ext_info *pmlmeinfo;
388 
389 	if (!padapter)
390 		return _FAIL;
391 
392 	pmlmeext = &padapter->mlmeextpriv;
393 	pmlmeinfo = &(pmlmeext->mlmext_info);
394 
395 	if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) && ((pmlmeinfo->state&0x03) == WIFI_FW_STATION_STATE))
396 		return true;
397 	else
398 		return _FAIL;
399 }
400 
is_client_associated_to_ibss(struct adapter * padapter)401 int is_client_associated_to_ibss(struct adapter *padapter)
402 {
403 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
404 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
405 
406 	if ((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) && ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE))
407 		return true;
408 	else
409 		return _FAIL;
410 }
411 
is_IBSS_empty(struct adapter * padapter)412 int is_IBSS_empty(struct adapter *padapter)
413 {
414 	unsigned int i;
415 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
416 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
417 
418 	for (i = IBSS_START_MAC_ID; i < NUM_STA; i++) {
419 		if (pmlmeinfo->FW_sta_info[i].status == 1)
420 			return _FAIL;
421 	}
422 
423 	return true;
424 }
425 
decide_wait_for_beacon_timeout(unsigned int bcn_interval)426 unsigned int decide_wait_for_beacon_timeout(unsigned int bcn_interval)
427 {
428 	if ((bcn_interval << 2) < WAIT_FOR_BCN_TO_MIN)
429 		return WAIT_FOR_BCN_TO_MIN;
430 	else if ((bcn_interval << 2) > WAIT_FOR_BCN_TO_MAX)
431 		return WAIT_FOR_BCN_TO_MAX;
432 	else
433 		return bcn_interval << 2;
434 }
435 
invalidate_cam_all(struct adapter * padapter)436 void invalidate_cam_all(struct adapter *padapter)
437 {
438 	struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
439 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
440 
441 	rtw_hal_set_hwreg(padapter, HW_VAR_CAM_INVALID_ALL, NULL);
442 
443 	spin_lock_bh(&cam_ctl->lock);
444 	cam_ctl->bitmap = 0;
445 	memset(dvobj->cam_cache, 0, sizeof(struct cam_entry_cache)*TOTAL_CAM_ENTRY);
446 	spin_unlock_bh(&cam_ctl->lock);
447 }
448 
_ReadCAM(struct adapter * padapter,u32 addr)449 static u32 _ReadCAM(struct adapter *padapter, u32 addr)
450 {
451 	u32 count = 0, cmd;
452 
453 	cmd = CAM_POLLINIG | addr;
454 	rtw_write32(padapter, RWCAM, cmd);
455 
456 	do {
457 		if (0 == (rtw_read32(padapter, REG_CAMCMD) & CAM_POLLINIG))
458 			break;
459 	} while (count++ < 100);
460 
461 	return rtw_read32(padapter, REG_CAMREAD);
462 }
463 
read_cam(struct adapter * padapter,u8 entry,u8 * get_key)464 void read_cam(struct adapter *padapter, u8 entry, u8 *get_key)
465 {
466 	u32 j, addr, cmd;
467 
468 	addr = entry << 3;
469 
470 	for (j = 0; j < 6; j++) {
471 		cmd = _ReadCAM(padapter, addr+j);
472 		if (j > 1) /* get key from cam */
473 			memcpy(get_key+(j-2)*4, &cmd, 4);
474 	}
475 }
476 
_write_cam(struct adapter * padapter,u8 entry,u16 ctrl,u8 * mac,u8 * key)477 void _write_cam(struct adapter *padapter, u8 entry, u16 ctrl, u8 *mac, u8 *key)
478 {
479 	unsigned int i, val, addr;
480 	int j;
481 	u32 cam_val[2];
482 
483 	addr = entry << 3;
484 
485 	for (j = 5; j >= 0; j--) {
486 		switch (j) {
487 		case 0:
488 			val = (ctrl | (mac[0] << 16) | (mac[1] << 24));
489 			break;
490 		case 1:
491 			val = (mac[2] | (mac[3] << 8) | (mac[4] << 16) | (mac[5] << 24));
492 			break;
493 		default:
494 			i = (j - 2) << 2;
495 			val = (key[i] | (key[i+1] << 8) | (key[i+2] << 16) | (key[i+3] << 24));
496 			break;
497 		}
498 
499 		cam_val[0] = val;
500 		cam_val[1] = addr + (unsigned int)j;
501 
502 		rtw_hal_set_hwreg(padapter, HW_VAR_CAM_WRITE, (u8 *)cam_val);
503 	}
504 }
505 
_clear_cam_entry(struct adapter * padapter,u8 entry)506 void _clear_cam_entry(struct adapter *padapter, u8 entry)
507 {
508 	unsigned char null_sta[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
509 	unsigned char null_key[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
510 
511 	_write_cam(padapter, entry, 0, null_sta, null_key);
512 }
513 
write_cam(struct adapter * adapter,u8 id,u16 ctrl,u8 * mac,u8 * key)514 inline void write_cam(struct adapter *adapter, u8 id, u16 ctrl, u8 *mac, u8 *key)
515 {
516 	_write_cam(adapter, id, ctrl, mac, key);
517 	write_cam_cache(adapter, id, ctrl, mac, key);
518 }
519 
clear_cam_entry(struct adapter * adapter,u8 id)520 inline void clear_cam_entry(struct adapter *adapter, u8 id)
521 {
522 	_clear_cam_entry(adapter, id);
523 	clear_cam_cache(adapter, id);
524 }
525 
write_cam_cache(struct adapter * adapter,u8 id,u16 ctrl,u8 * mac,u8 * key)526 void write_cam_cache(struct adapter *adapter, u8 id, u16 ctrl, u8 *mac, u8 *key)
527 {
528 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
529 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
530 
531 	spin_lock_bh(&cam_ctl->lock);
532 
533 	dvobj->cam_cache[id].ctrl = ctrl;
534 	memcpy(dvobj->cam_cache[id].mac, mac, ETH_ALEN);
535 	memcpy(dvobj->cam_cache[id].key, key, 16);
536 
537 	spin_unlock_bh(&cam_ctl->lock);
538 }
539 
clear_cam_cache(struct adapter * adapter,u8 id)540 void clear_cam_cache(struct adapter *adapter, u8 id)
541 {
542 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
543 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
544 
545 	spin_lock_bh(&cam_ctl->lock);
546 
547 	memset(&(dvobj->cam_cache[id]), 0, sizeof(struct cam_entry_cache));
548 
549 	spin_unlock_bh(&cam_ctl->lock);
550 }
551 
_rtw_camid_is_gk(struct adapter * adapter,u8 cam_id)552 static bool _rtw_camid_is_gk(struct adapter *adapter, u8 cam_id)
553 {
554 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
555 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
556 	bool ret = false;
557 
558 	if (cam_id >= TOTAL_CAM_ENTRY)
559 		goto exit;
560 
561 	if (!(cam_ctl->bitmap & BIT(cam_id)))
562 		goto exit;
563 
564 	ret = (dvobj->cam_cache[cam_id].ctrl&BIT6)?true:false;
565 
566 exit:
567 	return ret;
568 }
569 
_rtw_camid_search(struct adapter * adapter,u8 * addr,s16 kid)570 static s16 _rtw_camid_search(struct adapter *adapter, u8 *addr, s16 kid)
571 {
572 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
573 	int i;
574 	s16 cam_id = -1;
575 
576 	for (i = 0; i < TOTAL_CAM_ENTRY; i++) {
577 		if (addr && memcmp(dvobj->cam_cache[i].mac, addr, ETH_ALEN))
578 			continue;
579 		if (kid >= 0 && kid != (dvobj->cam_cache[i].ctrl&0x03))
580 			continue;
581 
582 		cam_id = i;
583 		break;
584 	}
585 
586 	return cam_id;
587 }
588 
rtw_camid_search(struct adapter * adapter,u8 * addr,s16 kid)589 s16 rtw_camid_search(struct adapter *adapter, u8 *addr, s16 kid)
590 {
591 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
592 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
593 	s16 cam_id = -1;
594 
595 	spin_lock_bh(&cam_ctl->lock);
596 	cam_id = _rtw_camid_search(adapter, addr, kid);
597 	spin_unlock_bh(&cam_ctl->lock);
598 
599 	return cam_id;
600 }
601 
rtw_camid_alloc(struct adapter * adapter,struct sta_info * sta,u8 kid)602 s16 rtw_camid_alloc(struct adapter *adapter, struct sta_info *sta, u8 kid)
603 {
604 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
605 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
606 	s16 cam_id = -1;
607 	struct mlme_ext_info *mlmeinfo;
608 
609 	spin_lock_bh(&cam_ctl->lock);
610 
611 	mlmeinfo = &adapter->mlmeextpriv.mlmext_info;
612 
613 	if ((((mlmeinfo->state&0x03) == WIFI_FW_AP_STATE) || ((mlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE))
614 		&& !sta) {
615 		/* AP/Ad-hoc mode group key: static alloction to default key by key ID */
616 		if (kid > 3) {
617 			netdev_dbg(adapter->pnetdev,
618 				   FUNC_ADPT_FMT " group key with invalid key id:%u\n",
619 				   FUNC_ADPT_ARG(adapter), kid);
620 			rtw_warn_on(1);
621 			goto bitmap_handle;
622 		}
623 
624 		cam_id = kid;
625 	} else {
626 		int i;
627 		u8 *addr = sta?sta->hwaddr:NULL;
628 
629 		if (!sta) {
630 			if (!(mlmeinfo->state & WIFI_FW_ASSOC_SUCCESS)) {
631 				/* bypass STA mode group key setting before connected(ex:WEP) because bssid is not ready */
632 				goto bitmap_handle;
633 			}
634 
635 			addr = get_bssid(&adapter->mlmepriv);
636 		}
637 
638 		i = _rtw_camid_search(adapter, addr, kid);
639 		if (i >= 0) {
640 			/* Fix issue that pairwise and group key have same key id. Pairwise key first, group key can overwirte group only(ex: rekey) */
641 			if (sta || _rtw_camid_is_gk(adapter, i))
642 				cam_id = i;
643 			else
644 				netdev_dbg(adapter->pnetdev,
645 					   FUNC_ADPT_FMT " group key id:%u the same key id as pairwise key\n",
646 					   FUNC_ADPT_ARG(adapter), kid);
647 			goto bitmap_handle;
648 		}
649 
650 		for (i = 4; i < TOTAL_CAM_ENTRY; i++)
651 			if (!(cam_ctl->bitmap & BIT(i)))
652 				break;
653 
654 		if (i == TOTAL_CAM_ENTRY) {
655 			if (sta)
656 				netdev_dbg(adapter->pnetdev,
657 					   FUNC_ADPT_FMT " pairwise key with %pM id:%u no room\n",
658 					   FUNC_ADPT_ARG(adapter),
659 					   MAC_ARG(sta->hwaddr), kid);
660 			else
661 				netdev_dbg(adapter->pnetdev,
662 					   FUNC_ADPT_FMT " group key id:%u no room\n",
663 					   FUNC_ADPT_ARG(adapter), kid);
664 			rtw_warn_on(1);
665 			goto bitmap_handle;
666 		}
667 
668 		cam_id = i;
669 	}
670 
671 bitmap_handle:
672 	if (cam_id >= 0 && cam_id < 32)
673 		cam_ctl->bitmap |= BIT(cam_id);
674 
675 	spin_unlock_bh(&cam_ctl->lock);
676 
677 	return cam_id;
678 }
679 
rtw_camid_free(struct adapter * adapter,u8 cam_id)680 void rtw_camid_free(struct adapter *adapter, u8 cam_id)
681 {
682 	struct dvobj_priv *dvobj = adapter_to_dvobj(adapter);
683 	struct cam_ctl_t *cam_ctl = &dvobj->cam_ctl;
684 
685 	spin_lock_bh(&cam_ctl->lock);
686 
687 	if (cam_id < TOTAL_CAM_ENTRY)
688 		cam_ctl->bitmap &= ~(BIT(cam_id));
689 
690 	spin_unlock_bh(&cam_ctl->lock);
691 }
692 
allocate_fw_sta_entry(struct adapter * padapter)693 int allocate_fw_sta_entry(struct adapter *padapter)
694 {
695 	unsigned int mac_id;
696 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
697 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
698 
699 	for (mac_id = IBSS_START_MAC_ID; mac_id < NUM_STA; mac_id++) {
700 		if (pmlmeinfo->FW_sta_info[mac_id].status == 0) {
701 			pmlmeinfo->FW_sta_info[mac_id].status = 1;
702 			pmlmeinfo->FW_sta_info[mac_id].retry = 0;
703 			break;
704 		}
705 	}
706 
707 	return mac_id;
708 }
709 
flush_all_cam_entry(struct adapter * padapter)710 void flush_all_cam_entry(struct adapter *padapter)
711 {
712 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
713 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
714 
715 	invalidate_cam_all(padapter);
716 	/* clear default key related key search setting */
717 	rtw_hal_set_hwreg(padapter, HW_VAR_SEC_DK_CFG, (u8 *)false);
718 
719 	memset((u8 *)(pmlmeinfo->FW_sta_info), 0, sizeof(pmlmeinfo->FW_sta_info));
720 }
721 
WMM_param_handler(struct adapter * padapter,struct ndis_80211_var_ie * pIE)722 int WMM_param_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
723 {
724 	/* struct registry_priv *pregpriv = &padapter->registrypriv; */
725 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
726 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
727 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
728 
729 	if (pmlmepriv->qospriv.qos_option == 0) {
730 		pmlmeinfo->WMM_enable = 0;
731 		return false;
732 	}
733 
734 	if (!memcmp(&(pmlmeinfo->WMM_param), (pIE->data + 6), sizeof(struct WMM_para_element)))
735 		return false;
736 	else
737 		memcpy(&(pmlmeinfo->WMM_param), (pIE->data + 6), sizeof(struct WMM_para_element));
738 
739 	pmlmeinfo->WMM_enable = 1;
740 	return true;
741 }
742 
sort_wmm_ac_params(u32 * inx,u32 * edca)743 static void sort_wmm_ac_params(u32 *inx, u32 *edca)
744 {
745 	u32 i, j, change_inx = false;
746 
747 	/* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
748 	for (i = 0; i < 4; i++) {
749 		for (j = i + 1; j < 4; j++) {
750 			/* compare CW and AIFS */
751 			if ((edca[j] & 0xFFFF) < (edca[i] & 0xFFFF)) {
752 				change_inx = true;
753 			} else if ((edca[j] & 0xFFFF) == (edca[i] & 0xFFFF)) {
754 				/* compare TXOP */
755 				if ((edca[j] >> 16) > (edca[i] >> 16))
756 					change_inx = true;
757 			}
758 
759 			if (change_inx) {
760 				swap(edca[i], edca[j]);
761 				swap(inx[i], inx[j]);
762 
763 				change_inx = false;
764 			}
765 		}
766 	}
767 }
768 
WMMOnAssocRsp(struct adapter * padapter)769 void WMMOnAssocRsp(struct adapter *padapter)
770 {
771 	u8 ACI, ACM, AIFS, ECWMin, ECWMax, aSifsTime;
772 	u8 acm_mask;
773 	u16 TXOP;
774 	u32 acParm, i;
775 	u32 edca[4], inx[4];
776 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
777 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
778 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
779 	struct registry_priv *pregpriv = &padapter->registrypriv;
780 
781 	acm_mask = 0;
782 
783 	if (pmlmeext->cur_wireless_mode & WIRELESS_11_24N)
784 		aSifsTime = 16;
785 	else
786 		aSifsTime = 10;
787 
788 	if (pmlmeinfo->WMM_enable == 0) {
789 		padapter->mlmepriv.acm_mask = 0;
790 
791 		AIFS = aSifsTime + (2 * pmlmeinfo->slotTime);
792 
793 		if (pmlmeext->cur_wireless_mode & WIRELESS_11G) {
794 			ECWMin = 4;
795 			ECWMax = 10;
796 		} else if (pmlmeext->cur_wireless_mode & WIRELESS_11B) {
797 			ECWMin = 5;
798 			ECWMax = 10;
799 		} else {
800 			ECWMin = 4;
801 			ECWMax = 10;
802 		}
803 
804 		TXOP = 0;
805 		acParm = AIFS | (ECWMin << 8) | (ECWMax << 12) | (TXOP << 16);
806 		rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BE, (u8 *)(&acParm));
807 		rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acParm));
808 		rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VI, (u8 *)(&acParm));
809 
810 		ECWMin = 2;
811 		ECWMax = 3;
812 		TXOP = 0x2f;
813 		acParm = AIFS | (ECWMin << 8) | (ECWMax << 12) | (TXOP << 16);
814 		rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VO, (u8 *)(&acParm));
815 	} else {
816 		edca[0] = edca[1] = edca[2] = edca[3] = 0;
817 
818 		for (i = 0; i < 4; i++) {
819 			ACI = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 5) & 0x03;
820 			ACM = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN >> 4) & 0x01;
821 
822 			/* AIFS = AIFSN * slot time + SIFS - r2t phy delay */
823 			AIFS = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN & 0x0f) * pmlmeinfo->slotTime + aSifsTime;
824 
825 			ECWMin = (pmlmeinfo->WMM_param.ac_param[i].CW & 0x0f);
826 			ECWMax = (pmlmeinfo->WMM_param.ac_param[i].CW & 0xf0) >> 4;
827 			TXOP = le16_to_cpu(pmlmeinfo->WMM_param.ac_param[i].TXOP_limit);
828 
829 			acParm = AIFS | (ECWMin << 8) | (ECWMax << 12) | (TXOP << 16);
830 
831 			switch (ACI) {
832 			case 0x0:
833 				rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BE, (u8 *)(&acParm));
834 				acm_mask |= (ACM ? BIT(1):0);
835 				edca[XMIT_BE_QUEUE] = acParm;
836 				break;
837 
838 			case 0x1:
839 				rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acParm));
840 				/* acm_mask |= (ACM? BIT(0):0); */
841 				edca[XMIT_BK_QUEUE] = acParm;
842 				break;
843 
844 			case 0x2:
845 				rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VI, (u8 *)(&acParm));
846 				acm_mask |= (ACM ? BIT(2):0);
847 				edca[XMIT_VI_QUEUE] = acParm;
848 				break;
849 
850 			case 0x3:
851 				rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VO, (u8 *)(&acParm));
852 				acm_mask |= (ACM ? BIT(3):0);
853 				edca[XMIT_VO_QUEUE] = acParm;
854 				break;
855 			}
856 		}
857 
858 		if (padapter->registrypriv.acm_method == 1)
859 			rtw_hal_set_hwreg(padapter, HW_VAR_ACM_CTRL, (u8 *)(&acm_mask));
860 		else
861 			padapter->mlmepriv.acm_mask = acm_mask;
862 
863 		inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
864 
865 		if (pregpriv->wifi_spec == 1)
866 			sort_wmm_ac_params(inx, edca);
867 
868 		for (i = 0; i < 4; i++)
869 			pxmitpriv->wmm_para_seq[i] = inx[i];
870 	}
871 }
872 
bwmode_update_check(struct adapter * padapter,struct ndis_80211_var_ie * pIE)873 static void bwmode_update_check(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
874 {
875 	unsigned char  new_bwmode;
876 	unsigned char  new_ch_offset;
877 	struct HT_info_element	 *pHT_info;
878 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
879 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
880 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
881 	struct registry_priv *pregistrypriv = &padapter->registrypriv;
882 	struct ht_priv *phtpriv = &pmlmepriv->htpriv;
883 	u8 cbw40_enable = 0;
884 
885 	if (!pIE)
886 		return;
887 
888 	if (phtpriv->ht_option == false)
889 		return;
890 
891 	if (pIE->length > sizeof(struct HT_info_element))
892 		return;
893 
894 	pHT_info = (struct HT_info_element *)pIE->data;
895 
896 	if (pmlmeext->cur_channel > 14) {
897 		if ((pregistrypriv->bw_mode & 0xf0) > 0)
898 			cbw40_enable = 1;
899 	} else {
900 		if ((pregistrypriv->bw_mode & 0x0f) > 0)
901 			cbw40_enable = 1;
902 	}
903 
904 	if ((pHT_info->infos[0] & BIT(2)) && cbw40_enable) {
905 		new_bwmode = CHANNEL_WIDTH_40;
906 
907 		switch (pHT_info->infos[0] & 0x3) {
908 		case 1:
909 			new_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
910 			break;
911 
912 		case 3:
913 			new_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
914 			break;
915 
916 		default:
917 			new_bwmode = CHANNEL_WIDTH_20;
918 			new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
919 			break;
920 		}
921 	} else {
922 		new_bwmode = CHANNEL_WIDTH_20;
923 		new_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
924 	}
925 
926 	if ((new_bwmode != pmlmeext->cur_bwmode) || (new_ch_offset != pmlmeext->cur_ch_offset)) {
927 		pmlmeinfo->bwmode_updated = true;
928 
929 		pmlmeext->cur_bwmode = new_bwmode;
930 		pmlmeext->cur_ch_offset = new_ch_offset;
931 
932 		/* update HT info also */
933 		HT_info_handler(padapter, pIE);
934 	} else {
935 		pmlmeinfo->bwmode_updated = false;
936 	}
937 
938 	if (true == pmlmeinfo->bwmode_updated) {
939 		struct sta_info *psta;
940 		struct wlan_bssid_ex	*cur_network = &(pmlmeinfo->network);
941 		struct sta_priv *pstapriv = &padapter->stapriv;
942 
943 		/* set_channel_bwmode(padapter, pmlmeext->cur_channel, pmlmeext->cur_ch_offset, pmlmeext->cur_bwmode); */
944 
945 		/* update ap's stainfo */
946 		psta = rtw_get_stainfo(pstapriv, cur_network->mac_address);
947 		if (psta) {
948 			struct ht_priv *phtpriv_sta = &psta->htpriv;
949 
950 			if (phtpriv_sta->ht_option) {
951 				/*  bwmode */
952 				psta->bw_mode = pmlmeext->cur_bwmode;
953 				phtpriv_sta->ch_offset = pmlmeext->cur_ch_offset;
954 			} else {
955 				psta->bw_mode = CHANNEL_WIDTH_20;
956 				phtpriv_sta->ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
957 			}
958 
959 			rtw_dm_ra_mask_wk_cmd(padapter, (u8 *)psta);
960 		}
961 	}
962 }
963 
HT_caps_handler(struct adapter * padapter,struct ndis_80211_var_ie * pIE)964 void HT_caps_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
965 {
966 	unsigned int	i;
967 	u8 max_AMPDU_len, min_MPDU_spacing;
968 	u8 cur_ldpc_cap = 0, cur_stbc_cap = 0;
969 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
970 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
971 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
972 	struct ht_priv *phtpriv = &pmlmepriv->htpriv;
973 
974 	if (!pIE)
975 		return;
976 
977 	if (phtpriv->ht_option == false)
978 		return;
979 
980 	pmlmeinfo->HT_caps_enable = 1;
981 
982 	for (i = 0; i < (pIE->length); i++) {
983 		if (i != 2) {
984 			/* Commented by Albert 2010/07/12 */
985 			/* Got the endian issue here. */
986 			pmlmeinfo->HT_caps.u.HT_cap[i] &= (pIE->data[i]);
987 		} else {
988 			/* modify from  fw by Thomas 2010/11/17 */
989 			if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3) > (pIE->data[i] & 0x3))
990 				max_AMPDU_len = (pIE->data[i] & 0x3);
991 			else
992 				max_AMPDU_len = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3);
993 
994 			if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) > (pIE->data[i] & 0x1c))
995 				min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c);
996 			else
997 				min_MPDU_spacing = (pIE->data[i] & 0x1c);
998 
999 			pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para = max_AMPDU_len | min_MPDU_spacing;
1000 		}
1001 	}
1002 
1003 	/* update the MCS set */
1004 	for (i = 0; i < 16; i++)
1005 		pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= pmlmeext->default_supported_mcs_set[i];
1006 
1007 	/* update the MCS rates */
1008 	set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_1R);
1009 
1010 	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1011 		/*  Config STBC setting */
1012 		if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX) &&
1013 		    GET_HT_CAPABILITY_ELE_TX_STBC(pIE->data))
1014 			SET_FLAG(cur_stbc_cap, STBC_HT_ENABLE_TX);
1015 
1016 		phtpriv->stbc_cap = cur_stbc_cap;
1017 	} else {
1018 		/*  Config LDPC Coding Capability */
1019 		if (TEST_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX) &&
1020 		    GET_HT_CAPABILITY_ELE_LDPC_CAP(pIE->data))
1021 			SET_FLAG(cur_ldpc_cap, (LDPC_HT_ENABLE_TX | LDPC_HT_CAP_TX));
1022 
1023 		phtpriv->ldpc_cap = cur_ldpc_cap;
1024 
1025 		/*  Config STBC setting */
1026 		if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX) &&
1027 		    GET_HT_CAPABILITY_ELE_RX_STBC(pIE->data))
1028 			SET_FLAG(cur_stbc_cap, (STBC_HT_ENABLE_TX | STBC_HT_CAP_TX));
1029 
1030 		phtpriv->stbc_cap = cur_stbc_cap;
1031 	}
1032 }
1033 
HT_info_handler(struct adapter * padapter,struct ndis_80211_var_ie * pIE)1034 void HT_info_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
1035 {
1036 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1037 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1038 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1039 	struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1040 
1041 	if (!pIE)
1042 		return;
1043 
1044 	if (phtpriv->ht_option == false)
1045 		return;
1046 
1047 	if (pIE->length > sizeof(struct HT_info_element))
1048 		return;
1049 
1050 	pmlmeinfo->HT_info_enable = 1;
1051 	memcpy(&(pmlmeinfo->HT_info), pIE->data, pIE->length);
1052 }
1053 
HTOnAssocRsp(struct adapter * padapter)1054 void HTOnAssocRsp(struct adapter *padapter)
1055 {
1056 	unsigned char max_AMPDU_len;
1057 	unsigned char min_MPDU_spacing;
1058 	/* struct registry_priv  *pregpriv = &padapter->registrypriv; */
1059 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1060 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1061 
1062 	if ((pmlmeinfo->HT_info_enable) && (pmlmeinfo->HT_caps_enable)) {
1063 		pmlmeinfo->HT_enable = 1;
1064 	} else {
1065 		pmlmeinfo->HT_enable = 0;
1066 		/* set_channel_bwmode(padapter, pmlmeext->cur_channel, pmlmeext->cur_ch_offset, pmlmeext->cur_bwmode); */
1067 		return;
1068 	}
1069 
1070 	/* handle A-MPDU parameter field */
1071 	/*
1072 		AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1073 		AMPDU_para [4:2]:Min MPDU Start Spacing
1074 	*/
1075 	max_AMPDU_len = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x03;
1076 
1077 	min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) >> 2;
1078 
1079 	rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_MIN_SPACE, (u8 *)(&min_MPDU_spacing));
1080 
1081 	rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_FACTOR, (u8 *)(&max_AMPDU_len));
1082 }
1083 
ERP_IE_handler(struct adapter * padapter,struct ndis_80211_var_ie * pIE)1084 void ERP_IE_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
1085 {
1086 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1087 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1088 
1089 	if (pIE->length > 1)
1090 		return;
1091 
1092 	pmlmeinfo->ERP_enable = 1;
1093 	memcpy(&(pmlmeinfo->ERP_IE), pIE->data, pIE->length);
1094 }
1095 
VCS_update(struct adapter * padapter,struct sta_info * psta)1096 void VCS_update(struct adapter *padapter, struct sta_info *psta)
1097 {
1098 	struct registry_priv  *pregpriv = &padapter->registrypriv;
1099 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1100 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1101 
1102 	switch (pregpriv->vrtl_carrier_sense) {/* 0:off 1:on 2:auto */
1103 	case 0: /* off */
1104 		psta->rtsen = 0;
1105 		psta->cts2self = 0;
1106 		break;
1107 
1108 	case 1: /* on */
1109 		if (pregpriv->vcs_type == 1) { /* 1:RTS/CTS 2:CTS to self */
1110 			psta->rtsen = 1;
1111 			psta->cts2self = 0;
1112 		} else {
1113 			psta->rtsen = 0;
1114 			psta->cts2self = 1;
1115 		}
1116 		break;
1117 
1118 	case 2: /* auto */
1119 	default:
1120 		if ((pmlmeinfo->ERP_enable) && (pmlmeinfo->ERP_IE & BIT(1))) {
1121 			if (pregpriv->vcs_type == 1) {
1122 				psta->rtsen = 1;
1123 				psta->cts2self = 0;
1124 			} else {
1125 				psta->rtsen = 0;
1126 				psta->cts2self = 1;
1127 			}
1128 		} else {
1129 			psta->rtsen = 0;
1130 			psta->cts2self = 0;
1131 		}
1132 		break;
1133 	}
1134 }
1135 
update_ldpc_stbc_cap(struct sta_info * psta)1136 void update_ldpc_stbc_cap(struct sta_info *psta)
1137 {
1138 	if (psta->htpriv.ht_option) {
1139 		if (TEST_FLAG(psta->htpriv.ldpc_cap, LDPC_HT_ENABLE_TX))
1140 			psta->ldpc = 1;
1141 
1142 		if (TEST_FLAG(psta->htpriv.stbc_cap, STBC_HT_ENABLE_TX))
1143 			psta->stbc = 1;
1144 	} else {
1145 		psta->ldpc = 0;
1146 		psta->stbc = 0;
1147 	}
1148 }
1149 
rtw_check_bcn_info(struct adapter * Adapter,u8 * pframe,u32 packet_len)1150 int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len)
1151 {
1152 	unsigned int len;
1153 	unsigned char *p;
1154 	unsigned short	val16, subtype;
1155 	struct wlan_network *cur_network = &(Adapter->mlmepriv.cur_network);
1156 	/* u8 wpa_ie[255], rsn_ie[255]; */
1157 	u16 wpa_len = 0, rsn_len = 0;
1158 	u8 encryp_protocol = 0;
1159 	struct wlan_bssid_ex *bssid;
1160 	int group_cipher = 0, pairwise_cipher = 0, is_8021x = 0;
1161 	unsigned char *pbuf;
1162 	u32 wpa_ielen = 0;
1163 	u8 *pbssid = GetAddr3Ptr(pframe);
1164 	struct HT_info_element *pht_info = NULL;
1165 	struct ieee80211_ht_cap *pht_cap = NULL;
1166 	u32 bcn_channel;
1167 	unsigned short	ht_cap_info;
1168 	unsigned char ht_info_infos_0;
1169 	struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
1170 	int ssid_len;
1171 
1172 	if (is_client_associated_to_ap(Adapter) == false)
1173 		return true;
1174 
1175 	len = packet_len - sizeof(struct ieee80211_hdr_3addr);
1176 
1177 	if (len > MAX_IE_SZ)
1178 		return _FAIL;
1179 
1180 	if (memcmp(cur_network->network.mac_address, pbssid, 6))
1181 		return true;
1182 
1183 	bssid = rtw_zmalloc(sizeof(struct wlan_bssid_ex));
1184 	if (!bssid)
1185 		return true;
1186 
1187 	if ((pmlmepriv->timeBcnInfoChkStart != 0) && (jiffies_to_msecs(jiffies - pmlmepriv->timeBcnInfoChkStart) > DISCONNECT_BY_CHK_BCN_FAIL_OBSERV_PERIOD_IN_MS)) {
1188 		pmlmepriv->timeBcnInfoChkStart = 0;
1189 		pmlmepriv->NumOfBcnInfoChkFail = 0;
1190 	}
1191 
1192 	subtype = GetFrameSubType(pframe) >> 4;
1193 
1194 	if (subtype == WIFI_BEACON)
1195 		bssid->reserved[0] = 1;
1196 
1197 	bssid->length = sizeof(struct wlan_bssid_ex) - MAX_IE_SZ + len;
1198 
1199 	/* below is to copy the information element */
1200 	bssid->ie_length = len;
1201 	memcpy(bssid->ies, (pframe + sizeof(struct ieee80211_hdr_3addr)), bssid->ie_length);
1202 
1203 	/* check bw and channel offset */
1204 	/* parsing HT_CAP_IE */
1205 	p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_CAPABILITY, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1206 	if (p && len > 0) {
1207 		pht_cap = (struct ieee80211_ht_cap *)(p + 2);
1208 		ht_cap_info = le16_to_cpu(pht_cap->cap_info);
1209 	} else {
1210 		ht_cap_info = 0;
1211 	}
1212 	/* parsing HT_INFO_IE */
1213 	p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_OPERATION, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1214 	if (p && len > 0) {
1215 		pht_info = (struct HT_info_element *)(p + 2);
1216 		ht_info_infos_0 = pht_info->infos[0];
1217 	} else {
1218 		ht_info_infos_0 = 0;
1219 	}
1220 	if (ht_cap_info != cur_network->bcn_info.ht_cap_info ||
1221 	    ((ht_info_infos_0&0x03) != (cur_network->bcn_info.ht_info_infos_0&0x03))) {
1222 		{
1223 			/* bcn_info_update */
1224 			cur_network->bcn_info.ht_cap_info = ht_cap_info;
1225 			cur_network->bcn_info.ht_info_infos_0 = ht_info_infos_0;
1226 			/* to do : need to check that whether modify related register of BB or not */
1227 		}
1228 		/* goto _mismatch; */
1229 	}
1230 
1231 	/* Checking for channel */
1232 	p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_DS_PARAMS, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1233 	if (p) {
1234 		bcn_channel = *(p + 2);
1235 	} else {/* In 5G, some ap do not have DSSET IE checking HT info for channel */
1236 		rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_OPERATION,
1237 			   &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1238 		if (pht_info)
1239 			bcn_channel = pht_info->primary_channel;
1240 		else /* we don't find channel IE, so don't check it */
1241 			bcn_channel = Adapter->mlmeextpriv.cur_channel;
1242 	}
1243 
1244 	if (bcn_channel != Adapter->mlmeextpriv.cur_channel)
1245 		goto _mismatch;
1246 
1247 	/* checking SSID */
1248 	ssid_len = 0;
1249 	p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_SSID, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1250 	if (p) {
1251 		ssid_len = *(p + 1);
1252 		if (ssid_len > NDIS_802_11_LENGTH_SSID)
1253 			ssid_len = 0;
1254 	}
1255 	memcpy(bssid->ssid.ssid, (p + 2), ssid_len);
1256 	bssid->ssid.ssid_length = ssid_len;
1257 
1258 	if (memcmp(bssid->ssid.ssid, cur_network->network.ssid.ssid, 32) ||
1259 			bssid->ssid.ssid_length != cur_network->network.ssid.ssid_length)
1260 		if (bssid->ssid.ssid[0] != '\0' &&
1261 		    bssid->ssid.ssid_length != 0) /* not hidden ssid */
1262 			goto _mismatch;
1263 
1264 	/* check encryption info */
1265 	val16 = rtw_get_capability((struct wlan_bssid_ex *)bssid);
1266 
1267 	if (val16 & BIT(4))
1268 		bssid->privacy = 1;
1269 	else
1270 		bssid->privacy = 0;
1271 
1272 	if (cur_network->network.privacy != bssid->privacy)
1273 		goto _mismatch;
1274 
1275 	rtw_get_sec_ie(bssid->ies, bssid->ie_length, NULL, &rsn_len, NULL, &wpa_len);
1276 
1277 	if (rsn_len > 0)
1278 		encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1279 	else if (wpa_len > 0)
1280 		encryp_protocol = ENCRYP_PROTOCOL_WPA;
1281 	else
1282 		if (bssid->privacy)
1283 			encryp_protocol = ENCRYP_PROTOCOL_WEP;
1284 
1285 	if (cur_network->bcn_info.encryp_protocol != encryp_protocol)
1286 		goto _mismatch;
1287 
1288 	if (encryp_protocol == ENCRYP_PROTOCOL_WPA || encryp_protocol == ENCRYP_PROTOCOL_WPA2) {
1289 		pbuf = rtw_get_wpa_ie(&bssid->ies[12], &wpa_ielen, bssid->ie_length-12);
1290 		if (pbuf && (wpa_ielen > 0)) {
1291 			rtw_parse_wpa_ie(pbuf, wpa_ielen + 2, &group_cipher,
1292 					 &pairwise_cipher, &is_8021x);
1293 		} else {
1294 			pbuf = rtw_get_wpa2_ie(&bssid->ies[12], &wpa_ielen, bssid->ie_length-12);
1295 
1296 			if (pbuf && (wpa_ielen > 0))
1297 				rtw_parse_wpa2_ie(pbuf, wpa_ielen + 2, &group_cipher,
1298 						  &pairwise_cipher, &is_8021x);
1299 		}
1300 
1301 		if (pairwise_cipher != cur_network->bcn_info.pairwise_cipher ||
1302 		    group_cipher != cur_network->bcn_info.group_cipher)
1303 			goto _mismatch;
1304 
1305 		if (is_8021x != cur_network->bcn_info.is_8021x)
1306 			goto _mismatch;
1307 	}
1308 
1309 	kfree(bssid);
1310 	return _SUCCESS;
1311 
1312 _mismatch:
1313 	kfree(bssid);
1314 
1315 	if (pmlmepriv->NumOfBcnInfoChkFail == 0)
1316 		pmlmepriv->timeBcnInfoChkStart = jiffies;
1317 
1318 	pmlmepriv->NumOfBcnInfoChkFail++;
1319 
1320 	if ((pmlmepriv->timeBcnInfoChkStart != 0) && (jiffies_to_msecs(jiffies - pmlmepriv->timeBcnInfoChkStart) <= DISCONNECT_BY_CHK_BCN_FAIL_OBSERV_PERIOD_IN_MS)
1321 		&& (pmlmepriv->NumOfBcnInfoChkFail >= DISCONNECT_BY_CHK_BCN_FAIL_THRESHOLD)) {
1322 		pmlmepriv->timeBcnInfoChkStart = 0;
1323 		pmlmepriv->NumOfBcnInfoChkFail = 0;
1324 		return _FAIL;
1325 	}
1326 
1327 	return _SUCCESS;
1328 }
1329 
update_beacon_info(struct adapter * padapter,u8 * pframe,uint pkt_len,struct sta_info * psta)1330 void update_beacon_info(struct adapter *padapter, u8 *pframe, uint pkt_len, struct sta_info *psta)
1331 {
1332 	unsigned int i;
1333 	unsigned int len;
1334 	struct ndis_80211_var_ie *pIE;
1335 
1336 	len = pkt_len - (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN);
1337 
1338 	for (i = 0; i < len;) {
1339 		pIE = (struct ndis_80211_var_ie *)(pframe + (_BEACON_IE_OFFSET_ + WLAN_HDR_A3_LEN) + i);
1340 
1341 		switch (pIE->element_id) {
1342 		case WLAN_EID_VENDOR_SPECIFIC:
1343 			/* to update WMM parameter set while receiving beacon */
1344 			if (!memcmp(pIE->data, WMM_PARA_OUI, 6) && pIE->length == WLAN_WMM_LEN)	/* WMM */
1345 				if (WMM_param_handler(padapter, pIE))
1346 					report_wmm_edca_update(padapter);
1347 
1348 			break;
1349 
1350 		case WLAN_EID_HT_OPERATION:	/* HT info */
1351 			/* HT_info_handler(padapter, pIE); */
1352 			bwmode_update_check(padapter, pIE);
1353 			break;
1354 
1355 		case WLAN_EID_ERP_INFO:
1356 			ERP_IE_handler(padapter, pIE);
1357 			VCS_update(padapter, psta);
1358 			break;
1359 
1360 		default:
1361 			break;
1362 		}
1363 
1364 		i += (pIE->length + 2);
1365 	}
1366 }
1367 
is_ap_in_tkip(struct adapter * padapter)1368 unsigned int is_ap_in_tkip(struct adapter *padapter)
1369 {
1370 	u32 i;
1371 	struct ndis_80211_var_ie *pIE;
1372 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1373 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1374 	struct wlan_bssid_ex		*cur_network = &(pmlmeinfo->network);
1375 
1376 	if (rtw_get_capability((struct wlan_bssid_ex *)cur_network) & WLAN_CAPABILITY_PRIVACY) {
1377 		for (i = sizeof(struct ndis_802_11_fix_ie); i < pmlmeinfo->network.ie_length;) {
1378 			pIE = (struct ndis_80211_var_ie *)(pmlmeinfo->network.ies + i);
1379 
1380 			switch (pIE->element_id) {
1381 			case WLAN_EID_VENDOR_SPECIFIC:
1382 				if ((!memcmp(pIE->data, RTW_WPA_OUI, 4)) && (!memcmp((pIE->data + 12), WPA_TKIP_CIPHER, 4)))
1383 					return true;
1384 
1385 				break;
1386 
1387 			case WLAN_EID_RSN:
1388 				if (!memcmp((pIE->data + 8), RSN_TKIP_CIPHER, 4))
1389 					return true;
1390 				break;
1391 
1392 			default:
1393 				break;
1394 			}
1395 
1396 			i += (pIE->length + 2);
1397 		}
1398 
1399 		return false;
1400 	} else {
1401 		return false;
1402 	}
1403 }
1404 
support_short_GI(struct adapter * padapter,struct HT_caps_element * pHT_caps,u8 bwmode)1405 int support_short_GI(struct adapter *padapter, struct HT_caps_element *pHT_caps, u8 bwmode)
1406 {
1407 	unsigned char bit_offset;
1408 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1409 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1410 
1411 	if (!(pmlmeinfo->HT_enable))
1412 		return _FAIL;
1413 
1414 	bit_offset = (bwmode & CHANNEL_WIDTH_40) ? 6 : 5;
1415 
1416 	if (le16_to_cpu(pHT_caps->u.HT_cap_element.HT_caps_info) & (0x1 << bit_offset))
1417 		return _SUCCESS;
1418 	else
1419 		return _FAIL;
1420 }
1421 
get_highest_rate_idx(u32 mask)1422 unsigned char get_highest_rate_idx(u32 mask)
1423 {
1424 	int i;
1425 	unsigned char rate_idx = 0;
1426 
1427 	for (i = 31; i >= 0; i--) {
1428 		if (mask & BIT(i)) {
1429 			rate_idx = i;
1430 			break;
1431 		}
1432 	}
1433 
1434 	return rate_idx;
1435 }
1436 
Update_RA_Entry(struct adapter * padapter,struct sta_info * psta)1437 void Update_RA_Entry(struct adapter *padapter, struct sta_info *psta)
1438 {
1439 	rtw_hal_update_ra_mask(psta, 0);
1440 }
1441 
set_sta_rate(struct adapter * padapter,struct sta_info * psta)1442 void set_sta_rate(struct adapter *padapter, struct sta_info *psta)
1443 {
1444 	/* rate adaptive */
1445 	Update_RA_Entry(padapter, psta);
1446 }
1447 
get_realtek_assoc_AP_vender(struct ndis_80211_var_ie * pIE)1448 static u32 get_realtek_assoc_AP_vender(struct ndis_80211_var_ie *pIE)
1449 {
1450 	u32 Vender = HT_IOT_PEER_REALTEK;
1451 
1452 	if (pIE->length >= 5) {
1453 		if (pIE->data[4] == 1)
1454 			/* if (pIE->data[5] & RT_HT_CAP_USE_LONG_PREAMBLE) */
1455 			/* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_LONG_PREAMBLE; */
1456 			if (pIE->data[5] & RT_HT_CAP_USE_92SE)
1457 				/* bssDesc->BssHT.RT2RT_HT_Mode |= RT_HT_CAP_USE_92SE; */
1458 				Vender = HT_IOT_PEER_REALTEK_92SE;
1459 
1460 		if (pIE->data[5] & RT_HT_CAP_USE_SOFTAP)
1461 			Vender = HT_IOT_PEER_REALTEK_SOFTAP;
1462 
1463 		if (pIE->data[4] == 2) {
1464 			if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_BCUT)
1465 				Vender = HT_IOT_PEER_REALTEK_JAGUAR_BCUTAP;
1466 
1467 			if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_CCUT)
1468 				Vender = HT_IOT_PEER_REALTEK_JAGUAR_CCUTAP;
1469 		}
1470 	}
1471 
1472 	return Vender;
1473 }
1474 
check_assoc_AP(u8 * pframe,uint len)1475 unsigned char check_assoc_AP(u8 *pframe, uint len)
1476 {
1477 	unsigned int	i;
1478 	struct ndis_80211_var_ie *pIE;
1479 
1480 	for (i = sizeof(struct ndis_802_11_fix_ie); i < len;) {
1481 		pIE = (struct ndis_80211_var_ie *)(pframe + i);
1482 
1483 		switch (pIE->element_id) {
1484 		case WLAN_EID_VENDOR_SPECIFIC:
1485 			if ((!memcmp(pIE->data, ARTHEROS_OUI1, 3)) || (!memcmp(pIE->data, ARTHEROS_OUI2, 3)))
1486 				return HT_IOT_PEER_ATHEROS;
1487 			else if ((!memcmp(pIE->data, BROADCOM_OUI1, 3)) ||
1488 				 (!memcmp(pIE->data, BROADCOM_OUI2, 3)) ||
1489 				 (!memcmp(pIE->data, BROADCOM_OUI3, 3)))
1490 				return HT_IOT_PEER_BROADCOM;
1491 			else if (!memcmp(pIE->data, MARVELL_OUI, 3))
1492 				return HT_IOT_PEER_MARVELL;
1493 			else if (!memcmp(pIE->data, RALINK_OUI, 3))
1494 				return HT_IOT_PEER_RALINK;
1495 			else if (!memcmp(pIE->data, CISCO_OUI, 3))
1496 				return HT_IOT_PEER_CISCO;
1497 			else if (!memcmp(pIE->data, REALTEK_OUI, 3))
1498 				return get_realtek_assoc_AP_vender(pIE);
1499 			else if (!memcmp(pIE->data, AIRGOCAP_OUI, 3))
1500 				return HT_IOT_PEER_AIRGO;
1501 			else
1502 				break;
1503 
1504 		default:
1505 			break;
1506 		}
1507 
1508 		i += (pIE->length + 2);
1509 	}
1510 
1511 	return HT_IOT_PEER_UNKNOWN;
1512 }
1513 
update_IOT_info(struct adapter * padapter)1514 void update_IOT_info(struct adapter *padapter)
1515 {
1516 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1517 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1518 
1519 	switch (pmlmeinfo->assoc_AP_vendor) {
1520 	case HT_IOT_PEER_MARVELL:
1521 		pmlmeinfo->turboMode_cts2self = 1;
1522 		pmlmeinfo->turboMode_rtsen = 0;
1523 		break;
1524 
1525 	case HT_IOT_PEER_RALINK:
1526 		pmlmeinfo->turboMode_cts2self = 0;
1527 		pmlmeinfo->turboMode_rtsen = 1;
1528 		/* disable high power */
1529 		Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), false);
1530 		break;
1531 	case HT_IOT_PEER_REALTEK:
1532 		/* rtw_write16(padapter, 0x4cc, 0xffff); */
1533 		/* rtw_write16(padapter, 0x546, 0x01c0); */
1534 		/* disable high power */
1535 		Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), false);
1536 		break;
1537 	default:
1538 		pmlmeinfo->turboMode_cts2self = 0;
1539 		pmlmeinfo->turboMode_rtsen = 1;
1540 		break;
1541 	}
1542 }
1543 
update_capinfo(struct adapter * Adapter,u16 updateCap)1544 void update_capinfo(struct adapter *Adapter, u16 updateCap)
1545 {
1546 	struct mlme_ext_priv *pmlmeext = &Adapter->mlmeextpriv;
1547 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1548 	bool		ShortPreamble;
1549 
1550 	/*  Check preamble mode, 2005.01.06, by rcnjko. */
1551 	/*  Mark to update preamble value forever, 2008.03.18 by lanhsin */
1552 	/* if (pMgntInfo->RegPreambleMode == PREAMBLE_AUTO) */
1553 	{
1554 		if (updateCap & cShortPreamble) {
1555 			/*  Short Preamble */
1556 			if (pmlmeinfo->preamble_mode != PREAMBLE_SHORT) { /*  PREAMBLE_LONG or PREAMBLE_AUTO */
1557 				ShortPreamble = true;
1558 				pmlmeinfo->preamble_mode = PREAMBLE_SHORT;
1559 				rtw_hal_set_hwreg(Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble);
1560 			}
1561 		} else {
1562 			/*  Long Preamble */
1563 			if (pmlmeinfo->preamble_mode != PREAMBLE_LONG) { /*  PREAMBLE_SHORT or PREAMBLE_AUTO */
1564 				ShortPreamble = false;
1565 				pmlmeinfo->preamble_mode = PREAMBLE_LONG;
1566 				rtw_hal_set_hwreg(Adapter, HW_VAR_ACK_PREAMBLE, (u8 *)&ShortPreamble);
1567 			}
1568 		}
1569 	}
1570 
1571 	if (updateCap & cIBSS) {
1572 		/* Filen: See 802.11-2007 p.91 */
1573 		pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1574 	} else {
1575 		/* Filen: See 802.11-2007 p.90 */
1576 		if (pmlmeext->cur_wireless_mode & (WIRELESS_11_24N)) {
1577 			pmlmeinfo->slotTime = SHORT_SLOT_TIME;
1578 		} else if (pmlmeext->cur_wireless_mode & (WIRELESS_11G)) {
1579 			if ((updateCap & cShortSlotTime) /* && (!(pMgntInfo->pHTInfo->RT2RT_HT_Mode & RT_HT_CAP_USE_LONG_PREAMBLE)) */)
1580 				/*  Short Slot Time */
1581 				pmlmeinfo->slotTime = SHORT_SLOT_TIME;
1582 			else
1583 				/*  Long Slot Time */
1584 				pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1585 		} else {
1586 			/* B Mode */
1587 			pmlmeinfo->slotTime = NON_SHORT_SLOT_TIME;
1588 		}
1589 	}
1590 
1591 	rtw_hal_set_hwreg(Adapter, HW_VAR_SLOT_TIME, &pmlmeinfo->slotTime);
1592 }
1593 
update_wireless_mode(struct adapter * padapter)1594 void update_wireless_mode(struct adapter *padapter)
1595 {
1596 	int network_type = 0;
1597 	u32 SIFS_Timer;
1598 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1599 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1600 	struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network);
1601 	unsigned char *rate = cur_network->supported_rates;
1602 
1603 	if ((pmlmeinfo->HT_info_enable) && (pmlmeinfo->HT_caps_enable))
1604 		pmlmeinfo->HT_enable = 1;
1605 
1606 	if (pmlmeinfo->HT_enable)
1607 		network_type = WIRELESS_11_24N;
1608 
1609 	if (rtw_is_cckratesonly_included(rate))
1610 		network_type |= WIRELESS_11B;
1611 	else if (rtw_is_cckrates_included(rate))
1612 		network_type |= WIRELESS_11BG;
1613 	else
1614 		network_type |= WIRELESS_11G;
1615 
1616 	pmlmeext->cur_wireless_mode = network_type & padapter->registrypriv.wireless_mode;
1617 
1618 	SIFS_Timer = 0x0a0a0808; /* 0x0808 -> for CCK, 0x0a0a -> for OFDM */
1619 													/* change this value if having IOT issues. */
1620 
1621 	padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_RESP_SIFS,  (u8 *)&SIFS_Timer);
1622 
1623 	padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_WIRELESS_MODE,  (u8 *)&(pmlmeext->cur_wireless_mode));
1624 
1625 	if (pmlmeext->cur_wireless_mode & WIRELESS_11B)
1626 		update_mgnt_tx_rate(padapter, IEEE80211_CCK_RATE_1MB);
1627 	else
1628 		update_mgnt_tx_rate(padapter, IEEE80211_OFDM_RATE_6MB);
1629 }
1630 
update_sta_basic_rate(struct sta_info * psta,u8 wireless_mode)1631 void update_sta_basic_rate(struct sta_info *psta, u8 wireless_mode)
1632 {
1633 	if (is_supported_tx_cck(wireless_mode)) {
1634 		/*  Only B, B/G, and B/G/N AP could use CCK rate */
1635 		memcpy(psta->bssrateset, rtw_basic_rate_cck, 4);
1636 		psta->bssratelen = 4;
1637 	} else {
1638 		memcpy(psta->bssrateset, rtw_basic_rate_ofdm, 3);
1639 		psta->bssratelen = 3;
1640 	}
1641 }
1642 
update_sta_support_rate(struct adapter * padapter,u8 * pvar_ie,uint var_ie_len,int cam_idx)1643 int update_sta_support_rate(struct adapter *padapter, u8 *pvar_ie, uint var_ie_len, int cam_idx)
1644 {
1645 	unsigned int	ie_len;
1646 	struct ndis_80211_var_ie *pIE;
1647 	int	supportRateNum = 0;
1648 	struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1649 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1650 
1651 	pIE = (struct ndis_80211_var_ie *)rtw_get_ie(pvar_ie, WLAN_EID_SUPP_RATES, &ie_len, var_ie_len);
1652 	if (!pIE)
1653 		return _FAIL;
1654 	if (ie_len > sizeof(pmlmeinfo->FW_sta_info[cam_idx].SupportedRates))
1655 		return _FAIL;
1656 
1657 	memcpy(pmlmeinfo->FW_sta_info[cam_idx].SupportedRates, pIE->data, ie_len);
1658 	supportRateNum = ie_len;
1659 
1660 	pIE = (struct ndis_80211_var_ie *)rtw_get_ie(pvar_ie, WLAN_EID_EXT_SUPP_RATES, &ie_len, var_ie_len);
1661 	if (pIE && (ie_len <= sizeof(pmlmeinfo->FW_sta_info[cam_idx].SupportedRates) - supportRateNum))
1662 		memcpy((pmlmeinfo->FW_sta_info[cam_idx].SupportedRates + supportRateNum), pIE->data, ie_len);
1663 
1664 	return _SUCCESS;
1665 }
1666 
process_addba_req(struct adapter * padapter,u8 * paddba_req,u8 * addr)1667 void process_addba_req(struct adapter *padapter, u8 *paddba_req, u8 *addr)
1668 {
1669 	struct sta_info *psta;
1670 	u16 tid, param;
1671 	struct recv_reorder_ctrl *preorder_ctrl;
1672 	struct sta_priv *pstapriv = &padapter->stapriv;
1673 	struct ADDBA_request *preq = (struct ADDBA_request *)paddba_req;
1674 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1675 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1676 
1677 	psta = rtw_get_stainfo(pstapriv, addr);
1678 
1679 	if (psta) {
1680 		param = le16_to_cpu(preq->BA_para_set);
1681 		tid = (param>>2)&0x0f;
1682 
1683 		preorder_ctrl = &psta->recvreorder_ctrl[tid];
1684 
1685 		preorder_ctrl->indicate_seq = 0xffff;
1686 
1687 		preorder_ctrl->enable = pmlmeinfo->accept_addba_req;
1688 	}
1689 }
1690 
update_TSF(struct mlme_ext_priv * pmlmeext,u8 * pframe,uint len)1691 void update_TSF(struct mlme_ext_priv *pmlmeext, u8 *pframe, uint len)
1692 {
1693 	u8 *pIE;
1694 	__le32 *pbuf;
1695 
1696 	pIE = pframe + sizeof(struct ieee80211_hdr_3addr);
1697 	pbuf = (__le32 *)pIE;
1698 
1699 	pmlmeext->TSFValue = le32_to_cpu(*(pbuf+1));
1700 
1701 	pmlmeext->TSFValue = pmlmeext->TSFValue << 32;
1702 
1703 	pmlmeext->TSFValue |= le32_to_cpu(*pbuf);
1704 }
1705 
correct_TSF(struct adapter * padapter,struct mlme_ext_priv * pmlmeext)1706 void correct_TSF(struct adapter *padapter, struct mlme_ext_priv *pmlmeext)
1707 {
1708 	rtw_hal_set_hwreg(padapter, HW_VAR_CORRECT_TSF, NULL);
1709 }
1710 
adaptive_early_32k(struct mlme_ext_priv * pmlmeext,u8 * pframe,uint len)1711 void adaptive_early_32k(struct mlme_ext_priv *pmlmeext, u8 *pframe, uint len)
1712 {
1713 	int i;
1714 	u8 *pIE;
1715 	__le32 *pbuf;
1716 	u64 tsf = 0;
1717 	u32 delay_ms;
1718 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1719 
1720 	pmlmeext->bcn_cnt++;
1721 
1722 	pIE = pframe + sizeof(struct ieee80211_hdr_3addr);
1723 	pbuf = (__le32 *)pIE;
1724 
1725 	tsf = le32_to_cpu(*(pbuf+1));
1726 	tsf = tsf << 32;
1727 	tsf |= le32_to_cpu(*pbuf);
1728 
1729 	/* delay = (timestamp mod 1024*100)/1000 (unit: ms) */
1730 	/* delay_ms = do_div(tsf, (pmlmeinfo->bcn_interval*1024))/1000; */
1731 	delay_ms = do_div(tsf, (pmlmeinfo->bcn_interval*1024));
1732 	delay_ms = delay_ms/1000;
1733 
1734 	if (delay_ms >= 8)
1735 		pmlmeext->bcn_delay_cnt[8]++;
1736 		/* pmlmeext->bcn_delay_ratio[8] = (pmlmeext->bcn_delay_cnt[8] * 100) /pmlmeext->bcn_cnt; */
1737 	else
1738 		pmlmeext->bcn_delay_cnt[delay_ms]++;
1739 		/* pmlmeext->bcn_delay_ratio[delay_ms] = (pmlmeext->bcn_delay_cnt[delay_ms] * 100) /pmlmeext->bcn_cnt; */
1740 
1741 /*
1742 
1743 	for (i = 0; i<9; i++)
1744 	{
1745 			pmlmeext->bcn_delay_cnt[i] , i, pmlmeext->bcn_delay_ratio[i]);
1746 	}
1747 */
1748 
1749 	/* dump for  adaptive_early_32k */
1750 	if (pmlmeext->bcn_cnt > 100 && (pmlmeext->adaptive_tsf_done == true)) {
1751 		u8 ratio_20_delay, ratio_80_delay;
1752 		u8 DrvBcnEarly, DrvBcnTimeOut;
1753 
1754 		ratio_20_delay = 0;
1755 		ratio_80_delay = 0;
1756 		DrvBcnEarly = 0xff;
1757 		DrvBcnTimeOut = 0xff;
1758 
1759 		for (i = 0; i < 9; i++) {
1760 			pmlmeext->bcn_delay_ratio[i] = (pmlmeext->bcn_delay_cnt[i] * 100) / pmlmeext->bcn_cnt;
1761 
1762 			ratio_20_delay += pmlmeext->bcn_delay_ratio[i];
1763 			ratio_80_delay += pmlmeext->bcn_delay_ratio[i];
1764 
1765 			if (ratio_20_delay > 20 && DrvBcnEarly == 0xff)
1766 				DrvBcnEarly = i;
1767 
1768 			if (ratio_80_delay > 80 && DrvBcnTimeOut == 0xff)
1769 				DrvBcnTimeOut = i;
1770 
1771 			/* reset adaptive_early_32k cnt */
1772 			pmlmeext->bcn_delay_cnt[i] = 0;
1773 			pmlmeext->bcn_delay_ratio[i] = 0;
1774 		}
1775 
1776 		pmlmeext->DrvBcnEarly = DrvBcnEarly;
1777 		pmlmeext->DrvBcnTimeOut = DrvBcnTimeOut;
1778 
1779 		pmlmeext->bcn_cnt = 0;
1780 	}
1781 }
1782 
rtw_alloc_macid(struct adapter * padapter,struct sta_info * psta)1783 void rtw_alloc_macid(struct adapter *padapter, struct sta_info *psta)
1784 {
1785 	int i;
1786 	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1787 	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
1788 
1789 	if (!memcmp(psta->hwaddr, bc_addr, ETH_ALEN))
1790 		return;
1791 
1792 	if (!memcmp(psta->hwaddr, myid(&padapter->eeprompriv), ETH_ALEN)) {
1793 		psta->mac_id = NUM_STA;
1794 		return;
1795 	}
1796 
1797 	spin_lock_bh(&pdvobj->lock);
1798 	for (i = 0; i < NUM_STA; i++) {
1799 		if (pdvobj->macid[i] == false) {
1800 			pdvobj->macid[i]  = true;
1801 			break;
1802 		}
1803 	}
1804 	spin_unlock_bh(&pdvobj->lock);
1805 
1806 	if (i > (NUM_STA - 1))
1807 		psta->mac_id = NUM_STA;
1808 	else
1809 		psta->mac_id = i;
1810 }
1811 
rtw_release_macid(struct adapter * padapter,struct sta_info * psta)1812 void rtw_release_macid(struct adapter *padapter, struct sta_info *psta)
1813 {
1814 	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1815 	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
1816 
1817 	if (!memcmp(psta->hwaddr, bc_addr, ETH_ALEN))
1818 		return;
1819 
1820 	if (!memcmp(psta->hwaddr, myid(&padapter->eeprompriv), ETH_ALEN))
1821 		return;
1822 
1823 	spin_lock_bh(&pdvobj->lock);
1824 	if (psta->mac_id < NUM_STA && psta->mac_id != 1) {
1825 		if (pdvobj->macid[psta->mac_id] == true) {
1826 			pdvobj->macid[psta->mac_id] = false;
1827 			psta->mac_id = NUM_STA;
1828 		}
1829 	}
1830 	spin_unlock_bh(&pdvobj->lock);
1831 }
1832 
1833 /* For 8188E RA */
rtw_search_max_mac_id(struct adapter * padapter)1834 u8 rtw_search_max_mac_id(struct adapter *padapter)
1835 {
1836 	u8 max_mac_id = 0;
1837 	struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
1838 	int i;
1839 
1840 	spin_lock_bh(&pdvobj->lock);
1841 	for (i = (NUM_STA-1); i >= 0 ; i--) {
1842 		if (pdvobj->macid[i] == true)
1843 			break;
1844 	}
1845 	max_mac_id = i;
1846 	spin_unlock_bh(&pdvobj->lock);
1847 
1848 	return max_mac_id;
1849 }
1850 
dvobj_get_port0_adapter(struct dvobj_priv * dvobj)1851 struct adapter *dvobj_get_port0_adapter(struct dvobj_priv *dvobj)
1852 {
1853 	if (get_iface_type(dvobj->padapters[i]) != IFACE_PORT0)
1854 		return NULL;
1855 
1856 	return dvobj->padapters;
1857 }
1858