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Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
[deliverable/linux.git] / drivers / staging / vt6656 / bssdb.c
CommitLineData
92b96797
FB		 1/*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * File: bssdb.c
20 *
21 * Purpose: Handles the Basic Service Set & Node Database functions
22 *
23 * Functions:
0863b4e2
SS		 24 * BSSpSearchBSSList - Search known BSS list for Desire SSID or BSSID
25 * BSSvClearBSSList - Clear BSS List
26 * BSSbInsertToBSSList - Insert a BSS set into known BSS list
27 * BSSbUpdateToBSSList - Update BSS set in known BSS list
28 * BSSbIsSTAInNodeDB - Search Node DB table to find the index of matched DstAddr
29 * BSSvCreateOneNode - Allocate an Node for Node DB
30 * BSSvUpdateAPNode - Update AP Node content in Index 0 of KnownNodeDB
31 * BSSvSecondCallBack - One second timer callback function to update Node DB info & AP link status
32 * BSSvUpdateNodeTxCounter - Update Tx attemps, Tx failure counter in Node DB for auto-fallback rate control
92b96797
FB		 33 *
34 * Revision History:
35 *
36 * Author: Lyndon Chen
37 *
38 * Date: July 17, 2002
92b96797
FB		 39 */
40
92b96797 41#include "tmacro.h"
92b96797 42#include "tether.h"
92b96797 43#include "device.h"
92b96797 44#include "80211hdr.h"
92b96797 45#include "bssdb.h"
92b96797 46#include "wmgr.h"
92b96797 47#include "datarate.h"
92b96797 48#include "desc.h"
92b96797 49#include "wcmd.h"
92b96797 50#include "wpa.h"
92b96797 51#include "baseband.h"
92b96797 52#include "rf.h"
92b96797 53#include "card.h"
92b96797 54#include "mac.h"
92b96797 55#include "wpa2.h"
62c8526d 56#include "usbpipe.h"
92b96797 57#include "iowpa.h"
60cc2747 58#include "power.h"
92b96797 59
e435ef16
SS		 60static int msglevel = MSG_LEVEL_INFO;
61/* static int msglevel = MSG_LEVEL_DEBUG; */
0863b4e2
SS		 62
63static const u16 awHWRetry0[5][5] = {
64 {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
65 {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
66 {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
67 {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
68 {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
69 };
70static const u16 awHWRetry1[5][5] = {
71 {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
72 {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
73 {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
74 {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
75 {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
76 };
92b96797 77
d56131de
MP		 78static void s_vCheckSensitivity(struct vnt_private *pDevice);
79static void s_vCheckPreEDThreshold(struct vnt_private *pDevice);
80static void s_uCalculateLinkQual(struct vnt_private *pDevice);
0cbd8d98 81
14feab17 82/*
92b96797 83 * Routine Description:
0863b4e2 84 * Search known BSS list for Desire SSID or BSSID.
92b96797
FB		 85 *
86 * Return Value:
0863b4e2 87 * PTR to KnownBSS or NULL
14feab17 88 */
d56131de 89PKnownBSS BSSpSearchBSSList(struct vnt_private *pDevice,
0863b4e2
SS		 90 u8 *pbyDesireBSSID, u8 *pbyDesireSSID,
91 CARD_PHY_TYPE ePhyType)
92b96797 92{
d56131de
MP		 93 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
94 u8 *pbyBSSID = NULL;
95 PWLAN_IE_SSID pSSID = NULL;
96 PKnownBSS pCurrBSS = NULL;
97 PKnownBSS pSelect = NULL;
98 u8 ZeroBSSID[WLAN_BSSID_LEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
99 int ii = 0;
100 int jj = 0;
101
5918ed42 102 if (pbyDesireBSSID) {
d3cc13a2
AS		 103 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
104 "BSSpSearchBSSList BSSID[%pM]\n", pbyDesireBSSID);
72cac302 105 if (!is_broadcast_ether_addr(pbyDesireBSSID) &&
98e54917
SS		 106 memcmp(pbyDesireBSSID, ZeroBSSID, 6) != 0)
107 pbyBSSID = pbyDesireBSSID;
0863b4e2 108 }
5918ed42 109 if (pbyDesireSSID &&
72cac302 110 ((PWLAN_IE_SSID) pbyDesireSSID)->len != 0)
8f284d79 111 pSSID = (PWLAN_IE_SSID) pbyDesireSSID;
0863b4e2 112
5918ed42 113 if (pbyBSSID && pDevice->bRoaming == false) {
14feab17 114 /* match BSSID first */
e435ef16 115 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
0863b4e2
SS		 116 pCurrBSS = &(pMgmt->sBSSList[ii]);
117
118 pCurrBSS->bSelected = false;
119
72cac302
SR		 120 if (pCurrBSS->bActive &&
121 pCurrBSS->bSelected == false &&
122 ether_addr_equal(pCurrBSS->abyBSSID, pbyBSSID)) {
5918ed42 123 if (pSSID) {
8f284d79 124 /* compare ssid */
72cac302 125 if (!memcmp(pSSID->abySSID,
8f284d79 126 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID,
72cac302
SR		 127 pSSID->len) &&
128 (pMgmt->eConfigMode == WMAC_CONFIG_AUTO ||
129 (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
8f284d79 130 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
72cac302 131 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
8f284d79
SS		 132 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)))) {
133
fd2251e2
SS		 134 pCurrBSS->bSelected = true;
135 return pCurrBSS;
0863b4e2 136 }
72cac302 137 } else if (pMgmt->eConfigMode == WMAC_CONFIG_AUTO ||
98e54917
SS		 138 (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
139 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
140 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
141 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))) {
8f284d79
SS		 142 pCurrBSS->bSelected = true;
143 return pCurrBSS;
0863b4e2
SS		 144 }
145 }
146 }
147 } else {
14feab17 148 /* ignore BSSID */
e435ef16 149 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
0863b4e2
SS		 150 pCurrBSS = &(pMgmt->sBSSList[ii]);
151
14feab17
SS		 152 /* 2007-0721-01<Mark>by MikeLiu
153 * if ((pCurrBSS->bActive) &&
154 * (pCurrBSS->bSelected == false)) { */
0863b4e2
SS		 155
156 pCurrBSS->bSelected = false;
157 if (pCurrBSS->bActive) {
158
5918ed42 159 if (pSSID &&
8f284d79
SS		 160 /* matched SSID */
161 (memcmp(pSSID->abySSID,
162 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID,
163 pSSID->len) ||
72cac302
SR		 164 pSSID->len !=
165 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->len)) {
8f284d79
SS		 166 /* SSID not match skip this BSS */
167 continue;
0863b4e2 168 }
8f284d79 169
98e54917
SS		 170 if ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
171 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) ||
172 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
173 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo))) {
14feab17 174 /* Type not match skip this BSS */
98e54917
SS		 175 DBG_PRT(MSG_LEVEL_DEBUG,
176 KERN_INFO "BSS type mismatch.... Config[%d] BSS[0x%04x]\n",
177 pMgmt->eConfigMode,
178 pCurrBSS->wCapInfo);
0863b4e2
SS		 179 continue;
180 }
181
72cac302
SR		 182 if (ePhyType != PHY_TYPE_AUTO &&
183 ((ePhyType == PHY_TYPE_11A &&
184 PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse) ||
185 (ePhyType != PHY_TYPE_11A &&
186 PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) {
8f284d79 187 /* PhyType not match skip this BSS */
98e54917
SS		 188 DBG_PRT(MSG_LEVEL_DEBUG,
189 KERN_INFO "Physical type mismatch.... ePhyType[%d] BSS[%d]\n",
190 ePhyType,
191 pCurrBSS->eNetworkTypeInUse);
8f284d79 192 continue;
0863b4e2
SS		 193 }
194
195 pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel;
196 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
197 "BSSpSearchBSSList pSelect1[%pM]\n",
198 pCurrBSS->abyBSSID);
199 jj++;
200
5918ed42 201 if (!pSelect)
0863b4e2 202 pSelect = pCurrBSS;
fd2251e2 203 /* compare RSSI, select the strongest signal */
b7fce6ae 204 else if (pCurrBSS->uRSSI < pSelect->uRSSI)
fd2251e2 205 pSelect = pCurrBSS;
0863b4e2
SS		 206 }
207 }
208
209 pDevice->bSameBSSMaxNum = jj;
210
5918ed42 211 if (pSelect) {
0863b4e2 212 pSelect->bSelected = true;
b7fce6ae 213 if (pDevice->bRoaming == false) {
14feab17 214 /* Einsn Add @20070907 */
b7fce6ae
SS		 215 memcpy(pbyDesireSSID,
216 pCurrBSS->abySSID,
217 WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
0863b4e2
SS		 218 }
219
e435ef16 220 return pSelect;
0863b4e2
SS		 221 }
222 }
e435ef16 223 return NULL;
92b96797
FB		 224
225}
226
14feab17 227/*
92b96797 228 * Routine Description:
0863b4e2 229 * Clear BSS List
92b96797
FB		 230 *
231 * Return Value:
0863b4e2 232 * None.
14feab17 233 */
d56131de 234void BSSvClearBSSList(struct vnt_private *pDevice, int bKeepCurrBSSID)
92b96797 235{
d56131de
MP		 236 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
237 int ii;
92b96797 238
0863b4e2 239 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
8f284d79
SS		 240 if (bKeepCurrBSSID &&
241 pMgmt->sBSSList[ii].bActive &&
242 ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
98e54917 243 pMgmt->abyCurrBSSID)) {
8f284d79
SS		 244
245 /* mike mark:
246 * there are two BSSID's in list. If that AP is
247 * in hidden ssid mode, one SSID is null, but
248 * other's might not be obvious, so if it
249 * associate's with your STA, you must keep the
250 * two of them!! bKeepCurrBSSID = false;
251 */
252
253 continue;
0863b4e2
SS		 254 }
255
256 pMgmt->sBSSList[ii].bActive = false;
257 memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS));
258 }
259 BSSvClearAnyBSSJoinRecord(pDevice);
92b96797
FB		 260}
261
14feab17 262/*
92b96797 263 * Routine Description:
0863b4e2 264 * search BSS list by BSSID & SSID if matched
92b96797
FB		 265 *
266 * Return Value:
0863b4e2 267 * true if found.
14feab17 268 */
d56131de 269PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *pDevice,
0863b4e2
SS		 270 u8 *abyBSSID,
271 PWLAN_IE_SSID pSSID)
92b96797 272{
d56131de
MP		 273 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
274 PKnownBSS pBSSList = NULL;
275 int ii;
92b96797 276
0863b4e2
SS		 277 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
278 pBSSList = &(pMgmt->sBSSList[ii]);
72cac302
SR		 279 if (pBSSList->bActive &&
280 ether_addr_equal(pBSSList->abyBSSID, abyBSSID) &&
281 pSSID->len == ((PWLAN_IE_SSID) pBSSList->abySSID)->len &&
282 memcmp(pSSID->abySSID,
8f284d79 283 ((PWLAN_IE_SSID) pBSSList->abySSID)->abySSID,
72cac302 284 pSSID->len) == 0)
8f284d79 285 return pBSSList;
0863b4e2
SS		 286 }
287
288 return NULL;
13a36fe9 289}
92b96797 290
14feab17 291/*
92b96797 292 * Routine Description:
0863b4e2 293 * Insert a BSS set into known BSS list
92b96797
FB		 294 *
295 * Return Value:
0863b4e2 296 * true if success.
14feab17 297 */
d56131de
MP		 298int BSSbInsertToBSSList(struct vnt_private *pDevice,
299 u8 *abyBSSIDAddr,
7c65fa2a 300 u64 qwTimestamp,
d56131de
MP		 301 u16 wBeaconInterval,
302 u16 wCapInfo,
303 u8 byCurrChannel,
304 PWLAN_IE_SSID pSSID,
305 PWLAN_IE_SUPP_RATES pSuppRates,
306 PWLAN_IE_SUPP_RATES pExtSuppRates,
307 PERPObject psERP,
308 PWLAN_IE_RSN pRSN,
309 PWLAN_IE_RSN_EXT pRSNWPA,
310 PWLAN_IE_COUNTRY pIE_Country,
311 PWLAN_IE_QUIET pIE_Quiet,
312 u32 uIELength,
313 u8 *pbyIEs,
314 void *pRxPacketContext)
92b96797 315{
d56131de
MP		 316 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
317 struct vnt_rx_mgmt *pRxPacket =
77226ed7 318 (struct vnt_rx_mgmt *) pRxPacketContext;
d56131de
MP		 319 PKnownBSS pBSSList = NULL;
320 unsigned int ii;
e269fc2d 321 bool bParsingQuiet = false;
92b96797 322
77226ed7 323 pBSSList = (PKnownBSS) &(pMgmt->sBSSList[0]);
0863b4e2
SS		 324
325 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
77226ed7 326 pBSSList = (PKnownBSS) &(pMgmt->sBSSList[ii]);
0863b4e2
SS		 327 if (!pBSSList->bActive)
328 break;
329 }
330
77226ed7 331 if (ii == MAX_BSS_NUM) {
98e54917
SS		 332 DBG_PRT(MSG_LEVEL_DEBUG,
333 KERN_INFO "Get free KnowBSS node failed.\n");
0863b4e2
SS		 334 return false;
335 }
14feab17 336 /* save the BSS info */
0863b4e2 337 pBSSList->bActive = true;
77226ed7 338 memcpy(pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN);
7c65fa2a 339 pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp);
0863b4e2
SS		 340 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
341 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
342 pBSSList->uClearCount = 0;
343
344 if (pSSID->len > WLAN_SSID_MAXLEN)
345 pSSID->len = WLAN_SSID_MAXLEN;
77226ed7 346 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
0863b4e2
SS		 347
348 pBSSList->uChannel = byCurrChannel;
349
350 if (pSuppRates->len > WLAN_RATES_MAXLEN)
351 pSuppRates->len = WLAN_RATES_MAXLEN;
98e54917
SS		 352 memcpy(pBSSList->abySuppRates, pSuppRates,
353 pSuppRates->len + WLAN_IEHDR_LEN);
0863b4e2 354
5918ed42 355 if (pExtSuppRates) {
0863b4e2
SS		 356 if (pExtSuppRates->len > WLAN_RATES_MAXLEN)
357 pExtSuppRates->len = WLAN_RATES_MAXLEN;
98e54917
SS		 358 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,
359 pExtSuppRates->len + WLAN_IEHDR_LEN);
360 DBG_PRT(MSG_LEVEL_DEBUG,
361 KERN_INFO "BSSbInsertToBSSList: pExtSuppRates->len = %d\n",
362 pExtSuppRates->len);
0863b4e2
SS		 363
364 } else {
98e54917
SS		 365 memset(pBSSList->abyExtSuppRates, 0,
366 WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
cc856e61 367 }
0863b4e2
SS		 368 pBSSList->sERP.byERP = psERP->byERP;
369 pBSSList->sERP.bERPExist = psERP->bERPExist;
92b96797 370
14feab17 371 /* Check if BSS is 802.11a/b/g */
fd2251e2 372 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G)
0863b4e2 373 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
fd2251e2
SS		 374 else if (pBSSList->sERP.bERPExist == true)
375 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
376 else
377 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
92b96797 378
0863b4e2
SS		 379 pBSSList->byRxRate = pRxPacket->byRxRate;
380 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
381 pBSSList->uRSSI = pRxPacket->uRSSI;
382 pBSSList->bySQ = pRxPacket->bySQ;
cc856e61 383
72cac302
SR		 384 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA &&
385 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
8f284d79 386 /* assoc with BSS */
72cac302 387 pBSSList == pMgmt->pCurrBSS)
8f284d79 388 bParsingQuiet = true;
0863b4e2
SS		 389
390 WPA_ClearRSN(pBSSList);
391
5918ed42 392 if (pRSNWPA) {
0863b4e2
SS		 393 unsigned int uLen = pRSNWPA->len + 2;
394
395 if (uLen <= (uIELength -
98e54917 396 (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) {
0863b4e2
SS		 397 pBSSList->wWPALen = uLen;
398 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
399 WPA_ParseRSN(pBSSList, pRSNWPA);
400 }
401 }
402
403 WPA2_ClearRSN(pBSSList);
404
5918ed42 405 if (pRSN) {
0863b4e2
SS		 406 unsigned int uLen = pRSN->len + 2;
407
408 if (uLen <= (uIELength -
98e54917 409 (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) {
0863b4e2
SS		 410 pBSSList->wRSNLen = uLen;
411 memcpy(pBSSList->byRSNIE, pRSN, uLen);
412 WPA2vParseRSN(pBSSList, pRSN);
413 }
414 }
415
98e54917
SS		 416 if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2 ||
417 pBSSList->bWPA2Valid == true) {
0863b4e2
SS		 418
419 PSKeyItem pTransmitKey = NULL;
420 bool bIs802_1x = false;
421
e435ef16 422 for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii++) {
98e54917
SS		 423 if (pBSSList->abyAKMSSAuthType[ii] ==
424 WLAN_11i_AKMSS_802_1X) {
0863b4e2
SS		 425 bIs802_1x = true;
426 break;
427 }
428 }
98e54917
SS		 429 if (bIs802_1x == true &&
430 pSSID->len == ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->len &&
431 !memcmp(pSSID->abySSID,
432 ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->abySSID,
433 pSSID->len)) {
0863b4e2
SS		 434
435 bAdd_PMKID_Candidate((void *) pDevice,
436 pBSSList->abyBSSID,
437 &pBSSList->sRSNCapObj);
438
72cac302
SR		 439 if (pDevice->bLinkPass == true &&
440 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
441 (KeybGetTransmitKey(&(pDevice->sKey),
8f284d79
SS		 442 pDevice->abyBSSID,
443 PAIRWISE_KEY,
72cac302
SR		 444 &pTransmitKey) == true ||
445 KeybGetTransmitKey(&(pDevice->sKey),
8f284d79
SS		 446 pDevice->abyBSSID,
447 GROUP_KEY,
72cac302 448 &pTransmitKey) == true)) {
98e54917
SS		 449 pDevice->gsPMKIDCandidate.StatusType =
450 Ndis802_11StatusType_PMKID_CandidateList;
8f284d79 451 pDevice->gsPMKIDCandidate.Version = 1;
0863b4e2 452
0863b4e2
SS		 453
454 }
455 }
456 }
457
9cade5ac
MP		 458 /* Monitor if RSSI is too strong. */
459 pBSSList->byRSSIStatCnt = 0;
21bba58a
MP		 460
461 vnt_rf_rssi_to_dbm(pDevice, (u8)pRxPacket->uRSSI, &pBSSList->ldBmMAX);
462
9cade5ac
MP		 463 pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
464 pBSSList->ldBmAverRange = pBSSList->ldBmMAX;
465 for (ii = 1; ii < RSSI_STAT_COUNT; ii++)
466 pBSSList->ldBmAverage[ii] = 0;
0863b4e2
SS		 467
468 pBSSList->uIELength = uIELength;
469 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
470 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
471 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
472
473 return true;
92b96797
FB		 474}
475
14feab17 476/*
92b96797 477 * Routine Description:
0863b4e2 478 * Update BSS set in known BSS list
92b96797
FB		 479 *
480 * Return Value:
0863b4e2 481 * true if success.
14feab17
SS		 482 */
483/* TODO: input structure modify */
d56131de 484int BSSbUpdateToBSSList(struct vnt_private *pDevice,
7c65fa2a 485 u64 qwTimestamp,
d56131de
MP		 486 u16 wBeaconInterval,
487 u16 wCapInfo,
488 u8 byCurrChannel,
489 int bChannelHit,
490 PWLAN_IE_SSID pSSID,
491 PWLAN_IE_SUPP_RATES pSuppRates,
492 PWLAN_IE_SUPP_RATES pExtSuppRates,
493 PERPObject psERP,
494 PWLAN_IE_RSN pRSN,
495 PWLAN_IE_RSN_EXT pRSNWPA,
496 PWLAN_IE_COUNTRY pIE_Country,
497 PWLAN_IE_QUIET pIE_Quiet,
498 PKnownBSS pBSSList,
499 u32 uIELength,
500 u8 *pbyIEs,
501 void *pRxPacketContext)
92b96797 502{
d56131de
MP		 503 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
504 struct vnt_rx_mgmt *pRxPacket =
77226ed7 505 (struct vnt_rx_mgmt *) pRxPacketContext;
d56131de
MP		 506 int ii, jj;
507 signed long ldBm, ldBmSum;
e269fc2d 508 bool bParsingQuiet = false;
92b96797 509
5918ed42 510 if (!pBSSList)
0863b4e2 511 return false;
92b96797 512
7c65fa2a
MP		 513 pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp);
514
0863b4e2
SS		 515 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
516 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
517 pBSSList->uClearCount = 0;
518 pBSSList->uChannel = byCurrChannel;
519
520 if (pSSID->len > WLAN_SSID_MAXLEN)
521 pSSID->len = WLAN_SSID_MAXLEN;
522
72cac302 523 if (pSSID->len != 0 && pSSID->abySSID[0] != 0)
0863b4e2 524 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
98e54917
SS		 525 memcpy(pBSSList->abySuppRates, pSuppRates,
526 pSuppRates->len + WLAN_IEHDR_LEN);
0863b4e2 527
5918ed42 528 if (pExtSuppRates)
98e54917
SS		 529 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,
530 pExtSuppRates->len + WLAN_IEHDR_LEN);
b7fce6ae 531 else
98e54917
SS		 532 memset(pBSSList->abyExtSuppRates, 0,
533 WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
0863b4e2
SS		 534 pBSSList->sERP.byERP = psERP->byERP;
535 pBSSList->sERP.bERPExist = psERP->bERPExist;
92b96797 536
14feab17 537 /* Check if BSS is 802.11a/b/g */
fd2251e2 538 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G)
0863b4e2 539 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
fd2251e2
SS		 540 else if (pBSSList->sERP.bERPExist == true)
541 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
542 else
543 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
92b96797 544
0863b4e2
SS		 545 pBSSList->byRxRate = pRxPacket->byRxRate;
546 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
77226ed7 547 if (bChannelHit)
0863b4e2
SS		 548 pBSSList->uRSSI = pRxPacket->uRSSI;
549 pBSSList->bySQ = pRxPacket->bySQ;
550
72cac302
SR		 551 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA &&
552 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
8f284d79 553 /* assoc with BSS */
72cac302 554 pBSSList == pMgmt->pCurrBSS)
8f284d79 555 bParsingQuiet = true;
0863b4e2 556
14feab17 557 WPA_ClearRSN(pBSSList); /* mike update */
0863b4e2 558
5918ed42 559 if (pRSNWPA) {
0863b4e2
SS		 560 unsigned int uLen = pRSNWPA->len + 2;
561 if (uLen <= (uIELength -
98e54917 562 (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) {
0863b4e2
SS		 563 pBSSList->wWPALen = uLen;
564 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
565 WPA_ParseRSN(pBSSList, pRSNWPA);
33d33e42 566 }
0863b4e2
SS		 567 }
568
14feab17 569 WPA2_ClearRSN(pBSSList); /* mike update */
92b96797 570
5918ed42 571 if (pRSN) {
0863b4e2
SS		 572 unsigned int uLen = pRSN->len + 2;
573 if (uLen <= (uIELength -
98e54917 574 (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) {
0863b4e2
SS		 575 pBSSList->wRSNLen = uLen;
576 memcpy(pBSSList->byRSNIE, pRSN, uLen);
577 WPA2vParseRSN(pBSSList, pRSN);
578 }
579 }
92b96797 580
0863b4e2 581 if (pRxPacket->uRSSI != 0) {
21bba58a 582 vnt_rf_rssi_to_dbm(pDevice, (u8)pRxPacket->uRSSI, &ldBm);
14feab17 583 /* Monitor if RSSI is too strong. */
0863b4e2
SS		 584 pBSSList->byRSSIStatCnt++;
585 pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
586 pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
587 ldBmSum = 0;
588 for (ii = 0, jj = 0; ii < RSSI_STAT_COUNT; ii++) {
589 if (pBSSList->ldBmAverage[ii] != 0) {
590 pBSSList->ldBmMAX =
591 max(pBSSList->ldBmAverage[ii], ldBm);
592 ldBmSum +=
593 pBSSList->ldBmAverage[ii];
594 jj++;
595 }
596 }
e435ef16 597 pBSSList->ldBmAverRange = ldBmSum / jj;
0863b4e2
SS		 598 }
599
600 pBSSList->uIELength = uIELength;
601 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
602 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
603 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
604
605 return true;
92b96797
FB		 606}
607
14feab17 608/*
92b96797 609 * Routine Description:
0863b4e2 610 * Search Node DB table to find the index of matched DstAddr
92b96797
FB		 611 *
612 * Return Value:
0863b4e2 613 * None
14feab17 614 */
d56131de 615int BSSbIsSTAInNodeDB(struct vnt_private *pDevice,
0863b4e2
SS		 616 u8 *abyDstAddr,
617 u32 *puNodeIndex)
92b96797 618{
d56131de
MP		 619 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
620 unsigned int ii;
92b96797 621
14feab17 622 /* Index = 0 reserved for AP Node */
0863b4e2 623 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
72cac302
SR		 624 if (pMgmt->sNodeDBTable[ii].bActive &&
625 ether_addr_equal(abyDstAddr,
626 pMgmt->sNodeDBTable[ii].abyMACAddr)) {
8f284d79
SS		 627 *puNodeIndex = ii;
628 return true;
0863b4e2
SS		 629 }
630 }
631
632 return false;
92b96797
FB		 633};
634
14feab17 635/*
92b96797 636 * Routine Description:
0863b4e2
SS		 637 * Find an empty node and allocate it; if no empty node
638 * is found, then use the most inactive one.
92b96797
FB		 639 *
640 * Return Value:
0863b4e2 641 * None
14feab17 642 */
d56131de 643void BSSvCreateOneNode(struct vnt_private *pDevice, u32 *puNodeIndex)
92b96797 644{
d56131de 645 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
0863b4e2 646 int ii;
d56131de
MP		 647 u32 BigestCount = 0;
648 u32 SelectIndex;
0863b4e2
SS		 649 struct sk_buff *skb;
650
14feab17
SS		 651 /* Index = 0 reserved for AP Node (In STA mode)
652 Index = 0 reserved for Broadcast/MultiCast (In AP mode) */
0863b4e2
SS		 653 SelectIndex = 1;
654 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
655 if (pMgmt->sNodeDBTable[ii].bActive) {
656 if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) {
98e54917
SS		 657 BigestCount =
658 pMgmt->sNodeDBTable[ii].uInActiveCount;
0863b4e2
SS		 659 SelectIndex = ii;
660 }
dad2ddbd 661 } else {
0863b4e2
SS		 662 break;
663 }
664 }
665
14feab17 666 /* if not found replace uInActiveCount with the largest one. */
77226ed7 667 if (ii == (MAX_NODE_NUM + 1)) {
0863b4e2 668 *puNodeIndex = SelectIndex;
98e54917
SS		 669 DBG_PRT(MSG_LEVEL_DEBUG,
670 KERN_INFO "Replace inactive node = %d\n", SelectIndex);
14feab17 671 /* clear ps buffer */
5918ed42
SR		 672 if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next) {
673 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)))
0863b4e2
SS		 674 dev_kfree_skb(skb);
675 }
dad2ddbd 676 } else {
0863b4e2
SS		 677 *puNodeIndex = ii;
678 }
679
680 memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB));
681 pMgmt->sNodeDBTable[*puNodeIndex].bActive = true;
682 pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND;
14feab17 683 /* for AP mode PS queue */
0863b4e2
SS		 684 skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue);
685 pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
686 pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
687 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii);
13a36fe9 688}
92b96797 689
14feab17 690/*
92b96797 691 * Routine Description:
0863b4e2 692 * Remove Node by NodeIndex
92b96797
FB		 693 *
694 *
695 * Return Value:
0863b4e2 696 * None
14feab17 697 */
d56131de 698void BSSvRemoveOneNode(struct vnt_private *pDevice, u32 uNodeIndex)
92b96797 699{
d56131de
MP		 700 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
701 u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
0863b4e2
SS		 702 struct sk_buff *skb;
703
5918ed42 704 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)))
0863b4e2 705 dev_kfree_skb(skb);
14feab17 706 /* clear context */
0863b4e2 707 memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
14feab17 708 /* clear tx bit map */
98e54917
SS		 709 pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &=
710 ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
13a36fe9 711}
14feab17
SS		 712
713/*
92b96797 714 * Routine Description:
0863b4e2 715 * Update AP Node content in Index 0 of KnownNodeDB
92b96797
FB		 716 *
717 *
718 * Return Value:
0863b4e2 719 * None
14feab17 720 */
0863b4e2
SS		 721void BSSvUpdateAPNode(struct vnt_private *pDevice,
722 u16 *pwCapInfo,
723 PWLAN_IE_SUPP_RATES pSuppRates,
724 PWLAN_IE_SUPP_RATES pExtSuppRates)
92b96797 725{
14c5ef57 726 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
d56131de 727 u32 uRateLen = WLAN_RATES_MAXLEN;
92b96797 728
0863b4e2
SS		 729 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
730
731 pMgmt->sNodeDBTable[0].bActive = true;
b7fce6ae 732 if (pDevice->byBBType == BB_TYPE_11B)
0863b4e2 733 uRateLen = WLAN_RATES_MAXLEN_11B;
77226ed7
SS		 734 pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pSuppRates,
735 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
0863b4e2 736 uRateLen);
77226ed7 737 pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pExtSuppRates,
98e54917
SS		 738 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
739 uRateLen);
0863b4e2 740 RATEvParseMaxRate((void *) pDevice,
77226ed7
SS		 741 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
742 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
0863b4e2
SS		 743 true,
744 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
745 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
746 &(pMgmt->sNodeDBTable[0].wSuppRate),
747 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
748 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate));
98e54917
SS		 749 memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID,
750 WLAN_ADDR_LEN);
0863b4e2 751 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate;
98e54917
SS		 752 pMgmt->sNodeDBTable[0].bShortPreamble =
753 WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo);
0863b4e2 754 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
14feab17
SS		 755 /* Auto rate fallback function initiation.
756 * RATEbInit(pDevice); */
98e54917
SS		 757 DBG_PRT(MSG_LEVEL_DEBUG,
758 KERN_INFO"pMgmt->sNodeDBTable[0].wTxDataRate = %d\n",
759 pMgmt->sNodeDBTable[0].wTxDataRate);
92b96797 760
13a36fe9 761}
92b96797 762
14feab17 763/*
92b96797 764 * Routine Description:
0863b4e2 765 * Add Multicast Node content in Index 0 of KnownNodeDB
92b96797
FB		 766 *
767 *
768 * Return Value:
0863b4e2 769 * None
14feab17 770 */
d56131de 771void BSSvAddMulticastNode(struct vnt_private *pDevice)
92b96797 772{
d56131de 773 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
92b96797 774
90f96acd
MP		 775 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
776
0863b4e2
SS		 777 memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN);
778 pMgmt->sNodeDBTable[0].bActive = true;
779 pMgmt->sNodeDBTable[0].bPSEnable = false;
780 skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue);
781 RATEvParseMaxRate((void *) pDevice,
77226ed7
SS		 782 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
783 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
0863b4e2
SS		 784 true,
785 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
786 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
787 &(pMgmt->sNodeDBTable[0].wSuppRate),
788 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
789 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate));
790 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate;
791 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
92b96797 792
13a36fe9 793}
92b96797 794
14feab17 795/*
92b96797
FB		 796 * Routine Description:
797 *
798 *
0863b4e2 799 * Second call back function to update Node DB info & AP link status
92b96797
FB		 800 *
801 *
802 * Return Value:
0863b4e2 803 * none.
14feab17 804 */
bd9a6dba 805void BSSvSecondCallBack(struct work_struct *work)
92b96797 806{
bd9a6dba
MP		 807 struct vnt_private *pDevice = container_of(work,
808 struct vnt_private, second_callback_work.work);
d56131de
MP		 809 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
810 int ii;
811 PWLAN_IE_SSID pItemSSID, pCurrSSID;
812 u32 uSleepySTACnt = 0;
813 u32 uNonShortSlotSTACnt = 0;
814 u32 uLongPreambleSTACnt = 0;
92b96797 815
17f3ced0
MP		 816 if (pDevice->Flags & fMP_DISCONNECTED)
817 return;
818
0863b4e2
SS		 819 pDevice->uAssocCount = 0;
820
14feab17 821 /* Power Saving Mode Tx Burst */
77226ed7 822 if (pDevice->bEnablePSMode == true) {
0863b4e2 823 pDevice->ulPSModeWaitTx++;
77226ed7 824 if (pDevice->ulPSModeWaitTx >= 2) {
0863b4e2
SS		 825 pDevice->ulPSModeWaitTx = 0;
826 pDevice->bPSModeTxBurst = false;
827 }
828 }
829
830 pDevice->byERPFlag &=
831 ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1));
832
833 if (pDevice->wUseProtectCntDown > 0) {
e435ef16 834 pDevice->wUseProtectCntDown--;
dad2ddbd 835 } else {
14feab17 836 /* disable protect mode */
0863b4e2
SS		 837 pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1));
838 }
92b96797 839
77226ed7 840 if (pDevice->byReAssocCount > 0) {
0863b4e2 841 pDevice->byReAssocCount++;
98e54917
SS		 842 if (pDevice->byReAssocCount > 10 &&
843 pDevice->bLinkPass != true) { /* 10 sec timeout */
0863b4e2
SS		 844 printk("Re-association timeout!!!\n");
845 pDevice->byReAssocCount = 0;
77226ed7 846 /* if (pDevice->bWPASuppWextEnabled == true) */
0863b4e2
SS		 847 {
848 union iwreq_data wrqu;
77226ed7 849 memset(&wrqu, 0, sizeof(wrqu));
0863b4e2
SS		 850 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
851 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
98e54917
SS		 852 wireless_send_event(pDevice->dev, SIOCGIWAP,
853 &wrqu, NULL);
0863b4e2 854 }
b7fce6ae 855 } else if (pDevice->bLinkPass == true) {
0863b4e2 856 pDevice->byReAssocCount = 0;
b7fce6ae 857 }
0863b4e2
SS		 858 }
859
77226ed7 860 pMgmt->eLastState = pMgmt->eCurrState;
92b96797 861
d56131de 862 s_uCalculateLinkQual(pDevice);
92b96797 863
0863b4e2
SS		 864 for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) {
865
866 if (pMgmt->sNodeDBTable[ii].bActive) {
14feab17 867 /* Increase in-activity counter */
0863b4e2
SS		 868 pMgmt->sNodeDBTable[ii].uInActiveCount++;
869
870 if (ii > 0) {
98e54917
SS		 871 if (pMgmt->sNodeDBTable[ii].uInActiveCount >
872 MAX_INACTIVE_COUNT) {
0863b4e2
SS		 873 BSSvRemoveOneNode(pDevice, ii);
874 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
98e54917
SS		 875 "Inactive timeout [%d] sec, STA index = [%d] remove\n",
876 MAX_INACTIVE_COUNT, ii);
0863b4e2
SS		 877 continue;
878 }
879
98e54917
SS		 880 if (pMgmt->sNodeDBTable[ii].eNodeState >=
881 NODE_ASSOC) {
0863b4e2
SS		 882
883 pDevice->uAssocCount++;
884
14feab17 885 /* check if Non ERP exist */
98e54917
SS		 886 if (pMgmt->sNodeDBTable[ii].uInActiveCount <
887 ERP_RECOVER_COUNT) {
0863b4e2 888 if (!pMgmt->sNodeDBTable[ii].bShortPreamble) {
98e54917
SS		 889 pDevice->byERPFlag |=
890 WLAN_SET_ERP_BARKER_MODE(1);
e435ef16 891 uLongPreambleSTACnt++;
0863b4e2
SS		 892 }
893 if (!pMgmt->sNodeDBTable[ii].bERPExist) {
98e54917
SS		 894 pDevice->byERPFlag |=
895 WLAN_SET_ERP_NONERP_PRESENT(1);
896 pDevice->byERPFlag |=
897 WLAN_SET_ERP_USE_PROTECTION(1);
0863b4e2
SS		 898 }
899 if (!pMgmt->sNodeDBTable[ii].bShortSlotTime)
900 uNonShortSlotSTACnt++;
901 }
902 }
903
14feab17 904 /* check if any STA in PS mode */
0863b4e2
SS		 905 if (pMgmt->sNodeDBTable[ii].bPSEnable)
906 uSleepySTACnt++;
907
908 }
909
14feab17 910 /* Rate fallback check */
0863b4e2
SS		 911 if (!pDevice->bFixRate) {
912 if (ii > 0) {
14feab17 913 /* ii = 0 for multicast node (AP & Adhoc) */
77226ed7 914 RATEvTxRateFallBack((void *) pDevice,
0863b4e2 915 &(pMgmt->sNodeDBTable[ii]));
fd2251e2 916 } else if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
14feab17 917 /* ii = 0 reserved for unicast AP node (Infra STA) */
fd2251e2
SS		 918 RATEvTxRateFallBack((void *) pDevice,
919 &(pMgmt->sNodeDBTable[ii]));
0863b4e2
SS		 920 }
921
922 }
923
14feab17 924 /* check if pending PS queue */
0863b4e2 925 if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) {
98e54917
SS		 926 DBG_PRT(MSG_LEVEL_DEBUG,
927 KERN_INFO "Index= %d, Queue = %d pending\n",
928 ii,
929 pMgmt->sNodeDBTable[ii].wEnQueueCnt);
930 if (ii > 0 &&
931 pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15) {
0863b4e2 932 BSSvRemoveOneNode(pDevice, ii);
98e54917
SS		 933 DBG_PRT(MSG_LEVEL_NOTICE,
934 KERN_INFO "Pending many queues PS STA Index = %d remove\n",
935 ii);
0863b4e2
SS		 936 continue;
937 }
938 }
0cbd8d98 939 }
0863b4e2
SS		 940
941 }
942
98e54917
SS		 943 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP &&
944 pDevice->byBBType == BB_TYPE_11G) {
0863b4e2 945
14feab17 946 /* on/off protect mode */
0863b4e2
SS		 947 if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) {
948 if (!pDevice->bProtectMode) {
949 MACvEnableProtectMD(pDevice);
950 pDevice->bProtectMode = true;
951 }
fd2251e2
SS		 952 } else if (pDevice->bProtectMode) {
953 MACvDisableProtectMD(pDevice);
954 pDevice->bProtectMode = false;
0863b4e2 955 }
14feab17 956 /* on/off short slot time */
0863b4e2
SS		 957
958 if (uNonShortSlotSTACnt > 0) {
959 if (pDevice->bShortSlotTime) {
960 pDevice->bShortSlotTime = false;
961 BBvSetShortSlotTime(pDevice);
77226ed7 962 vUpdateIFS((void *) pDevice);
0863b4e2 963 }
fd2251e2 964 } else if (!pDevice->bShortSlotTime) {
0863b4e2
SS		 965 pDevice->bShortSlotTime = true;
966 BBvSetShortSlotTime(pDevice);
77226ed7 967 vUpdateIFS((void *) pDevice);
0863b4e2
SS		 968 }
969
14feab17 970 /* on/off barker long preamble mode */
0863b4e2
SS		 971
972 if (uLongPreambleSTACnt > 0) {
973 if (!pDevice->bBarkerPreambleMd) {
974 MACvEnableBarkerPreambleMd(pDevice);
975 pDevice->bBarkerPreambleMd = true;
976 }
fd2251e2 977 } else if (pDevice->bBarkerPreambleMd) {
0863b4e2
SS		 978 MACvDisableBarkerPreambleMd(pDevice);
979 pDevice->bBarkerPreambleMd = false;
0863b4e2
SS		 980 }
981
982 }
983
14feab17 984 /* Check if any STA in PS mode, enable DTIM multicast deliver */
0863b4e2
SS		 985 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
986 if (uSleepySTACnt > 0)
987 pMgmt->sNodeDBTable[0].bPSEnable = true;
988 else
989 pMgmt->sNodeDBTable[0].bPSEnable = false;
990 }
991
77226ed7
SS		 992 pItemSSID = (PWLAN_IE_SSID) pMgmt->abyDesireSSID;
993 pCurrSSID = (PWLAN_IE_SSID) pMgmt->abyCurrSSID;
0863b4e2 994
72cac302 995 if (pMgmt->eCurrMode == WMAC_MODE_STANDBY ||
98e54917 996 pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
0863b4e2 997
14feab17 998 if (pMgmt->sNodeDBTable[0].bActive) { /* Assoc with BSS */
0863b4e2 999
9cade5ac
MP		 1000 s_vCheckSensitivity(pDevice);
1001 s_vCheckPreEDThreshold(pDevice);
0863b4e2 1002
98e54917
SS		 1003 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1004 (LOST_BEACON_COUNT/2) &&
1005 pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) {
0863b4e2
SS		 1006 pDevice->byBBVGANew = pDevice->abyBBVGA[0];
1007 bScheduleCommand((void *) pDevice,
98e54917
SS		 1008 WLAN_CMD_CHANGE_BBSENSITIVITY,
1009 NULL);
0863b4e2
SS		 1010 }
1011
98e54917
SS		 1012 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1013 LOST_BEACON_COUNT) {
0863b4e2
SS		 1014 pMgmt->sNodeDBTable[0].bActive = false;
1015 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
1016 pMgmt->eCurrState = WMAC_STATE_IDLE;
1017 netif_stop_queue(pDevice->dev);
1018 pDevice->bLinkPass = false;
96f6975b
MP		 1019
1020 vnt_mac_set_led(pDevice, LEDSTS_STS,
1021 LEDSTS_SLOW);
1022
0863b4e2
SS		 1023 pDevice->bRoaming = true;
1024 pDevice->bIsRoaming = false;
1025
98e54917
SS		 1026 DBG_PRT(MSG_LEVEL_NOTICE,
1027 KERN_INFO "Lost AP beacon [%d] sec, disconnected !\n",
1028 pMgmt->sNodeDBTable[0].uInActiveCount);
0863b4e2
SS		 1029 /* let wpa supplicant know AP may disconnect */
1030 {
1031 union iwreq_data wrqu;
77226ed7 1032 memset(&wrqu, 0, sizeof(wrqu));
0863b4e2
SS		 1033 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1034 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
98e54917
SS		 1035 wireless_send_event(pDevice->dev,
1036 SIOCGIWAP,
1037 &wrqu,
1038 NULL);
0863b4e2
SS		 1039 }
1040 }
dad2ddbd 1041 } else if (pItemSSID->len != 0) {
14feab17 1042 /* Davidwang */
98e54917
SS		 1043 if ((pDevice->bEnableRoaming == true) &&
1044 (!(pMgmt->Cisco_cckm))) {
1045 DBG_PRT(MSG_LEVEL_DEBUG,
1046 KERN_INFO "bRoaming %d, !\n",
1047 pDevice->bRoaming);
1048 DBG_PRT(MSG_LEVEL_DEBUG,
1049 KERN_INFO "bIsRoaming %d, !\n",
1050 pDevice->bIsRoaming);
1051 if ((pDevice->bRoaming == true) &&
1052 (pDevice->bIsRoaming == true)) {
1053 DBG_PRT(MSG_LEVEL_DEBUG,
1054 KERN_INFO "Fast Roaming ...\n");
1055 BSSvClearBSSList((void *) pDevice,
1056 pDevice->bLinkPass);
0863b4e2 1057 bScheduleCommand((void *) pDevice,
98e54917
SS		 1058 WLAN_CMD_BSSID_SCAN,
1059 pMgmt->abyDesireSSID);
0863b4e2 1060 bScheduleCommand((void *) pDevice,
98e54917
SS		 1061 WLAN_CMD_SSID,
1062 pMgmt->abyDesireSSID);
0863b4e2
SS		 1063 pDevice->uAutoReConnectTime = 0;
1064 pDevice->uIsroamingTime = 0;
1065 pDevice->bRoaming = false;
98e54917
SS		 1066 } else if (pDevice->bRoaming == false &&
1067 pDevice->bIsRoaming == true) {
0863b4e2
SS		 1068 pDevice->uIsroamingTime++;
1069 if (pDevice->uIsroamingTime >= 20)
1070 pDevice->bIsRoaming = false;
1071 }
fd2251e2
SS		 1072 } else if (pDevice->uAutoReConnectTime < 10) {
1073 pDevice->uAutoReConnectTime++;
1074 /* network manager support need not do Roaming scan??? */
1075 if (pDevice->bWPASuppWextEnabled == true)
0863b4e2 1076 pDevice->uAutoReConnectTime = 0;
fd2251e2
SS		 1077 } else {
1078 /* mike use old encryption status for wpa reauthen */
1079 if (pDevice->bWPADEVUp)
98e54917
SS		 1080 pDevice->eEncryptionStatus =
1081 pDevice->eOldEncryptionStatus;
fd2251e2 1082
98e54917
SS		 1083 DBG_PRT(MSG_LEVEL_DEBUG,
1084 KERN_INFO "Roaming ...\n");
1085 BSSvClearBSSList((void *) pDevice,
1086 pDevice->bLinkPass);
fd2251e2
SS		 1087 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1088 bScheduleCommand((void *) pDevice,
1089 WLAN_CMD_BSSID_SCAN,
1090 pMgmt->abyDesireSSID);
1091 bScheduleCommand((void *) pDevice,
1092 WLAN_CMD_SSID,
1093 pMgmt->abyDesireSSID);
1094 pDevice->uAutoReConnectTime = 0;
0863b4e2
SS		 1095 }
1096 }
1097 }
1098
1099 if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
14feab17 1100 /* if adhoc started which essid is NULL string, rescanning. */
98e54917
SS		 1101 if (pMgmt->eCurrState == WMAC_STATE_STARTED &&
1102 pCurrSSID->len == 0) {
0863b4e2
SS		 1103 if (pDevice->uAutoReConnectTime < 10) {
1104 pDevice->uAutoReConnectTime++;
dad2ddbd 1105 } else {
98e54917
SS		 1106 DBG_PRT(MSG_LEVEL_NOTICE,
1107 KERN_INFO "Adhoc re-scanning ...\n");
0863b4e2 1108 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
98e54917
SS		 1109 bScheduleCommand((void *) pDevice,
1110 WLAN_CMD_BSSID_SCAN, NULL);
1111 bScheduleCommand((void *) pDevice,
1112 WLAN_CMD_SSID, NULL);
0863b4e2 1113 pDevice->uAutoReConnectTime = 0;
13a36fe9 1114 }
0863b4e2
SS		 1115 }
1116 if (pMgmt->eCurrState == WMAC_STATE_JOINTED) {
1117
9cade5ac
MP		 1118 s_vCheckSensitivity(pDevice);
1119 s_vCheckPreEDThreshold(pDevice);
1120
98e54917
SS		 1121 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1122 ADHOC_LOST_BEACON_COUNT) {
1123 DBG_PRT(MSG_LEVEL_NOTICE,
1124 KERN_INFO "Lost other STA beacon [%d] sec, started !\n",
1125 pMgmt->sNodeDBTable[0].uInActiveCount);
0863b4e2
SS		 1126 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
1127 pMgmt->eCurrState = WMAC_STATE_STARTED;
1128 netif_stop_queue(pDevice->dev);
1129 pDevice->bLinkPass = false;
96f6975b
MP		 1130 vnt_mac_set_led(pDevice, LEDSTS_STS,
1131 LEDSTS_SLOW);
0863b4e2
SS		 1132 }
1133 }
1134 }
92b96797 1135
60cc2747 1136 if (pDevice->bLinkPass == true) {
8f284d79
SS		 1137 if ((pMgmt->eAuthenMode < WMAC_AUTH_WPA ||
1138 pDevice->fWPA_Authened == true) &&
1139 (++pDevice->tx_data_time_out > 40)) {
1140 pDevice->tx_trigger = true;
60cc2747 1141
8f284d79 1142 PSbSendNullPacket(pDevice);
60cc2747 1143
8f284d79
SS		 1144 pDevice->tx_trigger = false;
1145 pDevice->tx_data_time_out = 0;
60cc2747
MP		 1146 }
1147
1148 if (netif_queue_stopped(pDevice->dev))
1149 netif_wake_queue(pDevice->dev);
1150 }
92b96797 1151
bd9a6dba 1152 schedule_delayed_work(&pDevice->second_callback_work, HZ);
92b96797
FB		 1153}
1154
14feab17 1155/*
92b96797
FB		 1156 * Routine Description:
1157 *
1158 *
0863b4e2 1159 * Update Tx attemps, Tx failure counter in Node DB
92b96797
FB		 1160 *
1161 *
1162 * Return Value:
0863b4e2 1163 * none.
14feab17 1164 */
51934e7f 1165void BSSvUpdateNodeTxCounter(struct vnt_private *pDevice, u8 byTSR, u8 byPktNO)
92b96797 1166{
d56131de 1167 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
51934e7f 1168 struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info;
d56131de
MP		 1169 u32 uNodeIndex = 0;
1170 u8 byTxRetry;
1171 u16 wRate;
1172 u16 wFallBackRate = RATE_1M;
1173 u8 byFallBack;
1174 int ii;
1175 u8 *pbyDestAddr;
1176 u8 byPktNum;
1177 u16 wFIFOCtl;
92b96797 1178
0863b4e2
SS		 1179 byPktNum = (byPktNO & 0x0F) >> 4;
1180 byTxRetry = (byTSR & 0xF0) >> 4;
1181 wRate = (u16) (byPktNO & 0xF0) >> 4;
1182 wFIFOCtl = pkt_info[byPktNum].fifo_ctl;
1183 pbyDestAddr = pkt_info[byPktNum].dest_addr;
1184
b7fce6ae 1185 if (wFIFOCtl & FIFOCTL_AUTO_FB_0)
0863b4e2 1186 byFallBack = AUTO_FB_0;
b7fce6ae 1187 else if (wFIFOCtl & FIFOCTL_AUTO_FB_1)
0863b4e2 1188 byFallBack = AUTO_FB_1;
b7fce6ae 1189 else
0863b4e2 1190 byFallBack = AUTO_FB_NONE;
0863b4e2 1191
14feab17 1192 /* Only Unicast using support rates */
0863b4e2
SS		 1193 if (wFIFOCtl & FIFOCTL_NEEDACK) {
1194 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
1195 pMgmt->sNodeDBTable[0].uTxAttempts += 1;
77226ed7 1196 if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
14feab17 1197 /* transmit success, TxAttempts at least plus one */
0863b4e2 1198 pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++;
77226ed7 1199 if ((byFallBack == AUTO_FB_NONE) ||
98e54917 1200 (wRate < RATE_18M)) {
0863b4e2
SS		 1201 wFallBackRate = wRate;
1202 } else if (byFallBack == AUTO_FB_0) {
1203 if (byTxRetry < 5)
98e54917
SS		 1204 wFallBackRate =
1205 awHWRetry0[wRate-RATE_18M][byTxRetry];
0863b4e2 1206 else
98e54917
SS		 1207 wFallBackRate =
1208 awHWRetry0[wRate-RATE_18M][4];
0863b4e2
SS		 1209 } else if (byFallBack == AUTO_FB_1) {
1210 if (byTxRetry < 5)
98e54917
SS		 1211 wFallBackRate =
1212 awHWRetry1[wRate-RATE_18M][byTxRetry];
0863b4e2
SS		 1213 else
1214 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1215 }
1216 pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++;
1217 } else {
e435ef16 1218 pMgmt->sNodeDBTable[0].uTxFailures++;
33d33e42 1219 }
0863b4e2
SS		 1220 pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry;
1221 if (byTxRetry != 0) {
e435ef16 1222 pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE] += byTxRetry;
72cac302 1223 if (byFallBack == AUTO_FB_NONE ||
98e54917 1224 wRate < RATE_18M) {
e435ef16 1225 pMgmt->sNodeDBTable[0].uTxFail[wRate] += byTxRetry;
0863b4e2
SS		 1226 } else if (byFallBack == AUTO_FB_0) {
1227 for (ii = 0; ii < byTxRetry; ii++) {
1228 if (ii < 5)
1229 wFallBackRate =
1230 awHWRetry0[wRate-RATE_18M][ii];
1231 else
1232 wFallBackRate =
1233 awHWRetry0[wRate-RATE_18M][4];
1234 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1235 }
1236 } else if (byFallBack == AUTO_FB_1) {
1237 for (ii = 0; ii < byTxRetry; ii++) {
1238 if (ii < 5)
1239 wFallBackRate =
1240 awHWRetry1[wRate-RATE_18M][ii];
1241 else
1242 wFallBackRate =
1243 awHWRetry1[wRate-RATE_18M][4];
1244 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1245 }
1246 }
1247 }
1248 }
1249
72cac302
SR		 1250 if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA ||
1251 pMgmt->eCurrMode == WMAC_MODE_ESS_AP) &&
1252 BSSbIsSTAInNodeDB((void *) pDevice,
8f284d79 1253 pbyDestAddr,
72cac302 1254 &uNodeIndex)) {
8f284d79
SS		 1255 pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1;
1256 if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
1257 /* transmit success, TxAttempts at least plus one */
1258 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
1259 if ((byFallBack == AUTO_FB_NONE) ||
1260 (wRate < RATE_18M)) {
1261 wFallBackRate = wRate;
1262 } else if (byFallBack == AUTO_FB_0) {
1263 if (byTxRetry < 5)
98e54917
SS		 1264 wFallBackRate =
1265 awHWRetry0[wRate-RATE_18M][byTxRetry];
8f284d79 1266 else
98e54917
SS		 1267 wFallBackRate =
1268 awHWRetry0[wRate-RATE_18M][4];
8f284d79
SS		 1269 } else if (byFallBack == AUTO_FB_1) {
1270 if (byTxRetry < 5)
98e54917
SS		 1271 wFallBackRate =
1272 awHWRetry1[wRate-RATE_18M][byTxRetry];
8f284d79 1273 else
98e54917
SS		 1274 wFallBackRate =
1275 awHWRetry1[wRate-RATE_18M][4];
8f284d79
SS		 1276 }
1277 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++;
1278 } else {
1279 pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
1280 }
1281 pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry;
1282 if (byTxRetry != 0) {
1283 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE] += byTxRetry;
1284 if ((byFallBack == AUTO_FB_NONE) ||
98e54917 1285 (wRate < RATE_18M)) {
8f284d79
SS		 1286 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate] += byTxRetry;
1287 } else if (byFallBack == AUTO_FB_0) {
1288 for (ii = 0; ii < byTxRetry; ii++) {
1289 if (ii < 5)
1290 wFallBackRate =
1291 awHWRetry0[wRate-RATE_18M][ii];
0863b4e2 1292 else
8f284d79
SS		 1293 wFallBackRate =
1294 awHWRetry0[wRate-RATE_18M][4];
1295 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1296 }
1297 } else if (byFallBack == AUTO_FB_1) {
1298 for (ii = 0; ii < byTxRetry; ii++) {
1299 if (ii < 5)
1300 wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
0863b4e2
SS		 1301 else
1302 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
8f284d79 1303 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
0863b4e2
SS		 1304 }
1305 }
33d33e42 1306 }
0863b4e2
SS		 1307 }
1308 }
92b96797
FB		 1309}
1310
14feab17 1311/*
92b96797 1312 * Routine Description:
0863b4e2 1313 * Clear Nodes & skb in DB Table
92b96797
FB		 1314 *
1315 *
1316 * Parameters:
0863b4e2
SS		 1317 * In:
1318 * hDeviceContext - The adapter context.
1319 * uStartIndex - starting index
1320 * Out:
1321 * none
92b96797
FB		 1322 *
1323 * Return Value:
0863b4e2 1324 * None.
14feab17 1325 */
d56131de 1326void BSSvClearNodeDBTable(struct vnt_private *pDevice, u32 uStartIndex)
92b96797 1327{
d56131de 1328 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
0863b4e2 1329 struct sk_buff *skb;
d56131de 1330 int ii;
92b96797 1331
0863b4e2
SS		 1332 for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) {
1333 if (pMgmt->sNodeDBTable[ii].bActive) {
14feab17 1334 /* check if sTxPSQueue has been initial */
5918ed42
SR		 1335 if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next) {
1336 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue))) {
98e54917
SS		 1337 DBG_PRT(MSG_LEVEL_DEBUG,
1338 KERN_INFO "PS skb != NULL %d\n",
1339 ii);
0863b4e2
SS		 1340 dev_kfree_skb(skb);
1341 }
1342 }
1343 memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
1344 }
1345 }
13a36fe9 1346}
92b96797 1347
d56131de 1348static void s_vCheckSensitivity(struct vnt_private *pDevice)
92b96797 1349{
d56131de
MP		 1350 PKnownBSS pBSSList = NULL;
1351 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1352 int ii;
92b96797 1353
72cac302 1354 if (pMgmt->eCurrState == WMAC_STATE_ASSOC ||
98e54917
SS		 1355 (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA &&
1356 pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
1357 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID,
1358 (PWLAN_IE_SSID) pMgmt->abyCurrSSID);
5918ed42 1359 if (pBSSList) {
0863b4e2
SS		 1360 /* Update BB register if RSSI is too strong */
1361 signed long LocalldBmAverage = 0;
1362 signed long uNumofdBm = 0;
1363 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
1364 if (pBSSList->ldBmAverage[ii] != 0) {
e435ef16 1365 uNumofdBm++;
0863b4e2
SS		 1366 LocalldBmAverage += pBSSList->ldBmAverage[ii];
1367 }
1368 }
1369 if (uNumofdBm > 0) {
1370 LocalldBmAverage = LocalldBmAverage/uNumofdBm;
e435ef16 1371 for (ii = 0; ii < BB_VGA_LEVEL; ii++) {
98e54917
SS		 1372 DBG_PRT(MSG_LEVEL_DEBUG,
1373 KERN_INFO"LocalldBmAverage:%ld, %ld %02x\n",
1374 LocalldBmAverage,
1375 pDevice->ldBmThreshold[ii],
1376 pDevice->abyBBVGA[ii]);
0863b4e2 1377 if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) {
98e54917
SS		 1378 pDevice->byBBVGANew =
1379 pDevice->abyBBVGA[ii];
0863b4e2
SS		 1380 break;
1381 }
1382 }
98e54917
SS		 1383 if (pDevice->byBBVGANew !=
1384 pDevice->byBBVGACurrent) {
0863b4e2 1385 pDevice->uBBVGADiffCount++;
98e54917
SS		 1386 if (pDevice->uBBVGADiffCount >=
1387 BB_VGA_CHANGE_THRESHOLD)
0863b4e2
SS		 1388 bScheduleCommand(pDevice,
1389 WLAN_CMD_CHANGE_BBSENSITIVITY,
1390 NULL);
1391 } else {
1392 pDevice->uBBVGADiffCount = 0;
1393 }
1394 }
1395 }
1396 }
92b96797
FB		 1397}
1398
d56131de 1399static void s_uCalculateLinkQual(struct vnt_private *pDevice)
92b96797 1400{
854f775a 1401 struct net_device_stats *stats = &pDevice->stats;
d56131de
MP		 1402 unsigned long TxOkRatio, TxCnt;
1403 unsigned long RxOkRatio, RxCnt;
1404 unsigned long RssiRatio;
854f775a 1405 unsigned long qual;
d56131de 1406 long ldBm;
92b96797 1407
854f775a
MP		 1408 TxCnt = stats->tx_packets + pDevice->wstats.discard.retries;
1409
9a450f9a 1410 RxCnt = stats->rx_packets + stats->rx_frame_errors;
854f775a
MP		 1411
1412 TxOkRatio = (TxCnt < 6) ? 4000:((stats->tx_packets * 4000) / TxCnt);
1413
1414 RxOkRatio = (RxCnt < 6) ? 2000 :
9a450f9a 1415 ((stats->rx_packets * 2000) / RxCnt);
854f775a
MP		 1416
1417 /* decide link quality */
1418 if (pDevice->bLinkPass != true) {
1419 pDevice->wstats.qual.qual = 0;
854f775a 1420 } else {
21bba58a 1421 vnt_rf_rssi_to_dbm(pDevice, (u8) (pDevice->uCurrRSSI), &ldBm);
854f775a
MP		 1422 if (-ldBm < 50)
1423 RssiRatio = 4000;
1424 else if (-ldBm > 90)
1425 RssiRatio = 0;
1426 else
1427 RssiRatio = (40-(-ldBm-50)) * 4000 / 40;
1428
854f775a
MP		 1429 qual = (RssiRatio + TxOkRatio + RxOkRatio) / 100;
1430 if (qual < 100)
77226ed7 1431 pDevice->wstats.qual.qual = (u8) qual;
854f775a
MP		 1432 else
1433 pDevice->wstats.qual.qual = 100;
1434 }
92b96797 1435}
92b96797 1436
d56131de 1437void BSSvClearAnyBSSJoinRecord(struct vnt_private *pDevice)
92b96797 1438{
d56131de
MP		 1439 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1440 int ii;
92b96797 1441
ca76edeb 1442 for (ii = 0; ii < MAX_BSS_NUM; ii++)
e269fc2d 1443 pMgmt->sBSSList[ii].bSelected = false;
d56131de
MP		 1444
1445 return;
92b96797
FB		 1446}
1447
d56131de 1448static void s_vCheckPreEDThreshold(struct vnt_private *pDevice)
92b96797 1449{
d56131de
MP		 1450 PKnownBSS pBSSList = NULL;
1451 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
92b96797 1452
72cac302 1453 if (pMgmt->eCurrState == WMAC_STATE_ASSOC ||
98e54917
SS		 1454 (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA &&
1455 pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
1456 pBSSList = BSSpAddrIsInBSSList(pDevice,
1457 pMgmt->abyCurrBSSID,
1458 (PWLAN_IE_SSID) pMgmt->abyCurrSSID);
5918ed42 1459 if (pBSSList) {
98e54917
SS		 1460 pDevice->byBBPreEDRSSI =
1461 (u8) (~(pBSSList->ldBmAverRange) + 1);
0863b4e2
SS		 1462 BBvUpdatePreEDThreshold(pDevice, false);
1463 }
1464 }
92b96797
FB		 1465}
1466
Linux kernel - Deliverables
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