diff options
Diffstat (limited to 'drivers/staging/vt6656/bssdb.c')
| -rw-r--r-- | drivers/staging/vt6656/bssdb.c | 1435 |
1 files changed, 1435 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c new file mode 100644 index 00000000..ee79bbdf --- /dev/null +++ b/drivers/staging/vt6656/bssdb.c @@ -0,0 +1,1435 @@ +/* + * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * File: bssdb.c + * + * Purpose: Handles the Basic Service Set & Node Database functions + * + * Functions: + * BSSpSearchBSSList - Search known BSS list for Desire SSID or BSSID + * BSSvClearBSSList - Clear BSS List + * BSSbInsertToBSSList - Insert a BSS set into known BSS list + * BSSbUpdateToBSSList - Update BSS set in known BSS list + * BSSbIsSTAInNodeDB - Search Node DB table to find the index of matched DstAddr + * BSSvCreateOneNode - Allocate an Node for Node DB + * BSSvUpdateAPNode - Update AP Node content in Index 0 of KnownNodeDB + * BSSvSecondCallBack - One second timer callback function to update Node DB info & AP link status + * BSSvUpdateNodeTxCounter - Update Tx attemps, Tx failure counter in Node DB for auto-fall back rate control + * + * Revision History: + * + * Author: Lyndon Chen + * + * Date: July 17, 2002 + * + */ + +#include "tmacro.h" +#include "tether.h" +#include "device.h" +#include "80211hdr.h" +#include "bssdb.h" +#include "wmgr.h" +#include "datarate.h" +#include "desc.h" +#include "wcmd.h" +#include "wpa.h" +#include "baseband.h" +#include "rf.h" +#include "card.h" +#include "mac.h" +#include "wpa2.h" +#include "control.h" +#include "rndis.h" +#include "iowpa.h" + +static int msglevel =MSG_LEVEL_INFO; +//static int msglevel =MSG_LEVEL_DEBUG; + +const u16 awHWRetry0[5][5] = { + {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M}, + {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M}, + {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M}, + {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M}, + {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M} + }; +const u16 awHWRetry1[5][5] = { + {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M}, + {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M}, + {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M}, + {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M}, + {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M} + }; + +static void s_vCheckSensitivity(struct vnt_private *pDevice); +static void s_vCheckPreEDThreshold(struct vnt_private *pDevice); +static void s_uCalculateLinkQual(struct vnt_private *pDevice); + +/*+ + * + * Routine Description: + * Search known BSS list for Desire SSID or BSSID. + * + * Return Value: + * PTR to KnownBSS or NULL + * +-*/ + +PKnownBSS BSSpSearchBSSList(struct vnt_private *pDevice, + u8 *pbyDesireBSSID, u8 *pbyDesireSSID, + CARD_PHY_TYPE ePhyType) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + u8 *pbyBSSID = NULL; + PWLAN_IE_SSID pSSID = NULL; + PKnownBSS pCurrBSS = NULL; + PKnownBSS pSelect = NULL; + u8 ZeroBSSID[WLAN_BSSID_LEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + int ii = 0; + int jj = 0; + + if (pbyDesireBSSID != NULL) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "BSSpSearchBSSList BSSID[%pM]\n", pbyDesireBSSID); + if ((!is_broadcast_ether_addr(pbyDesireBSSID)) && + (memcmp(pbyDesireBSSID, ZeroBSSID, 6)!= 0)){ + pbyBSSID = pbyDesireBSSID; + } + } + if (pbyDesireSSID != NULL) { + if (((PWLAN_IE_SSID)pbyDesireSSID)->len != 0) { + pSSID = (PWLAN_IE_SSID) pbyDesireSSID; + } + } + + if ((pbyBSSID != NULL)&&(pDevice->bRoaming == false)) { + // match BSSID first + for (ii = 0; ii <MAX_BSS_NUM; ii++) { + pCurrBSS = &(pMgmt->sBSSList[ii]); + + pCurrBSS->bSelected = false; + + if ((pCurrBSS->bActive) && + (pCurrBSS->bSelected == false)) { + if (!compare_ether_addr(pCurrBSS->abyBSSID, pbyBSSID)) { + if (pSSID != NULL) { + // compare ssid + if ( !memcmp(pSSID->abySSID, + ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID, + pSSID->len)) { + if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) || + ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) || + ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) + ) { + pCurrBSS->bSelected = true; + return(pCurrBSS); + } + } + } else { + if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) || + ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) || + ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) + ) { + pCurrBSS->bSelected = true; + return(pCurrBSS); + } + } + } + } + } + } else { + // ignore BSSID + for (ii = 0; ii <MAX_BSS_NUM; ii++) { + pCurrBSS = &(pMgmt->sBSSList[ii]); + + //2007-0721-01<Mark>by MikeLiu + // if ((pCurrBSS->bActive) && + // (pCurrBSS->bSelected == false)) { + + pCurrBSS->bSelected = false; + if (pCurrBSS->bActive) { + + if (pSSID != NULL) { + // matched SSID + if (memcmp(pSSID->abySSID, + ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID, + pSSID->len) || + (pSSID->len != ((PWLAN_IE_SSID)pCurrBSS->abySSID)->len)) { + // SSID not match skip this BSS + continue; + } + } + if (((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) || + ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) + ){ + // Type not match skip this BSS + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSS type mismatch.... Config[%d] BSS[0x%04x]\n", pMgmt->eConfigMode, pCurrBSS->wCapInfo); + continue; + } + + if (ePhyType != PHY_TYPE_AUTO) { + if (((ePhyType == PHY_TYPE_11A) && (PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse)) || + ((ePhyType != PHY_TYPE_11A) && (PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) { + // PhyType not match skip this BSS + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Physical type mismatch.... ePhyType[%d] BSS[%d]\n", ePhyType, pCurrBSS->eNetworkTypeInUse); + continue; + } + } + + pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "BSSpSearchBSSList pSelect1[%pM]\n", + pCurrBSS->abyBSSID); + jj++; + + if (pSelect == NULL) { + pSelect = pCurrBSS; + } else { + // compare RSSI, select the strongest signal + if (pCurrBSS->uRSSI < pSelect->uRSSI) { + pSelect = pCurrBSS; + } + } + } + } + +pDevice->bSameBSSMaxNum = jj; + + if (pSelect != NULL) { + pSelect->bSelected = true; + if (pDevice->bRoaming == false) { + // Einsn Add @20070907 + memcpy(pbyDesireSSID,pCurrBSS->abySSID,WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1) ; + } + + return(pSelect); + } + } + return(NULL); + +} + +/*+ + * + * Routine Description: + * Clear BSS List + * + * Return Value: + * None. + * +-*/ + +void BSSvClearBSSList(struct vnt_private *pDevice, int bKeepCurrBSSID) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + + for (ii = 0; ii < MAX_BSS_NUM; ii++) { + if (bKeepCurrBSSID) { + if (pMgmt->sBSSList[ii].bActive && + !compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID, + pMgmt->abyCurrBSSID)) { + //mike mark: there are two BSSID's in list. If that AP is in hidden ssid mode, one SSID is null, + // but other's might not be obvious, so if it associate's with your STA, + // you must keep the two of them!! + // bKeepCurrBSSID = false; + continue; + } + } + + pMgmt->sBSSList[ii].bActive = false; + memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS)); + } + BSSvClearAnyBSSJoinRecord(pDevice); +} + +/*+ + * + * Routine Description: + * search BSS list by BSSID & SSID if matched + * + * Return Value: + * true if found. + * +-*/ +PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *pDevice, + u8 *abyBSSID, PWLAN_IE_SSID pSSID) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + PKnownBSS pBSSList = NULL; + int ii; + + for (ii = 0; ii < MAX_BSS_NUM; ii++) { + pBSSList = &(pMgmt->sBSSList[ii]); + if (pBSSList->bActive) { + if (!compare_ether_addr(pBSSList->abyBSSID, abyBSSID)) { + if (pSSID->len == ((PWLAN_IE_SSID)pBSSList->abySSID)->len){ + if (memcmp(pSSID->abySSID, + ((PWLAN_IE_SSID)pBSSList->abySSID)->abySSID, + pSSID->len) == 0) + return pBSSList; + } + } + } + } + + return NULL; +}; + +/*+ + * + * Routine Description: + * Insert a BSS set into known BSS list + * + * Return Value: + * true if success. + * +-*/ + +int BSSbInsertToBSSList(struct vnt_private *pDevice, + u8 *abyBSSIDAddr, + u64 qwTimestamp, + u16 wBeaconInterval, + u16 wCapInfo, + u8 byCurrChannel, + PWLAN_IE_SSID pSSID, + PWLAN_IE_SUPP_RATES pSuppRates, + PWLAN_IE_SUPP_RATES pExtSuppRates, + PERPObject psERP, + PWLAN_IE_RSN pRSN, + PWLAN_IE_RSN_EXT pRSNWPA, + PWLAN_IE_COUNTRY pIE_Country, + PWLAN_IE_QUIET pIE_Quiet, + u32 uIELength, + u8 *pbyIEs, + void *pRxPacketContext) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct vnt_rx_mgmt *pRxPacket = + (struct vnt_rx_mgmt *)pRxPacketContext; + PKnownBSS pBSSList = NULL; + unsigned int ii; + bool bParsingQuiet = false; + + pBSSList = (PKnownBSS)&(pMgmt->sBSSList[0]); + + for (ii = 0; ii < MAX_BSS_NUM; ii++) { + pBSSList = (PKnownBSS)&(pMgmt->sBSSList[ii]); + if (!pBSSList->bActive) + break; + } + + if (ii == MAX_BSS_NUM){ + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Get free KnowBSS node failed.\n"); + return false; + } + // save the BSS info + pBSSList->bActive = true; + memcpy( pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN); + pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp); + pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval); + pBSSList->wCapInfo = cpu_to_le16(wCapInfo); + pBSSList->uClearCount = 0; + + if (pSSID->len > WLAN_SSID_MAXLEN) + pSSID->len = WLAN_SSID_MAXLEN; + memcpy( pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN); + + pBSSList->uChannel = byCurrChannel; + + if (pSuppRates->len > WLAN_RATES_MAXLEN) + pSuppRates->len = WLAN_RATES_MAXLEN; + memcpy( pBSSList->abySuppRates, pSuppRates, pSuppRates->len + WLAN_IEHDR_LEN); + + if (pExtSuppRates != NULL) { + if (pExtSuppRates->len > WLAN_RATES_MAXLEN) + pExtSuppRates->len = WLAN_RATES_MAXLEN; + memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, pExtSuppRates->len + WLAN_IEHDR_LEN); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSbInsertToBSSList: pExtSuppRates->len = %d\n", pExtSuppRates->len); + + } else { + memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); + } + pBSSList->sERP.byERP = psERP->byERP; + pBSSList->sERP.bERPExist = psERP->bERPExist; + + // Check if BSS is 802.11a/b/g + if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11A; + } else { + if (pBSSList->sERP.bERPExist == true) { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11G; + } else { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11B; + } + } + + pBSSList->byRxRate = pRxPacket->byRxRate; + pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF; + pBSSList->uRSSI = pRxPacket->uRSSI; + pBSSList->bySQ = pRxPacket->bySQ; + + if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && + (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { + // assoc with BSS + if (pBSSList == pMgmt->pCurrBSS) { + bParsingQuiet = true; + } + } + + WPA_ClearRSN(pBSSList); + + if (pRSNWPA != NULL) { + unsigned int uLen = pRSNWPA->len + 2; + + if (uLen <= (uIELength - + (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) { + pBSSList->wWPALen = uLen; + memcpy(pBSSList->byWPAIE, pRSNWPA, uLen); + WPA_ParseRSN(pBSSList, pRSNWPA); + } + } + + WPA2_ClearRSN(pBSSList); + + if (pRSN != NULL) { + unsigned int uLen = pRSN->len + 2; + + if (uLen <= (uIELength - + (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) { + pBSSList->wRSNLen = uLen; + memcpy(pBSSList->byRSNIE, pRSN, uLen); + WPA2vParseRSN(pBSSList, pRSN); + } + } + + if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) || (pBSSList->bWPA2Valid == true)) { + + PSKeyItem pTransmitKey = NULL; + bool bIs802_1x = false; + + for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii ++) { + if (pBSSList->abyAKMSSAuthType[ii] == WLAN_11i_AKMSS_802_1X) { + bIs802_1x = true; + break; + } + } + if ((bIs802_1x == true) && (pSSID->len == ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->len) && + ( !memcmp(pSSID->abySSID, ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->abySSID, pSSID->len))) { + + bAdd_PMKID_Candidate((void *) pDevice, + pBSSList->abyBSSID, + &pBSSList->sRSNCapObj); + + if ((pDevice->bLinkPass == true) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { + if ((KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, PAIRWISE_KEY, &pTransmitKey) == true) || + (KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, GROUP_KEY, &pTransmitKey) == true)) { + pDevice->gsPMKIDCandidate.StatusType = Ndis802_11StatusType_PMKID_CandidateList; + pDevice->gsPMKIDCandidate.Version = 1; + + } + + } + } + } + + if (pDevice->bUpdateBBVGA) { + // Monitor if RSSI is too strong. + pBSSList->byRSSIStatCnt = 0; + RFvRSSITodBm(pDevice, (u8)(pRxPacket->uRSSI), &pBSSList->ldBmMAX); + pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX; + pBSSList->ldBmAverRange = pBSSList->ldBmMAX; + for (ii = 1; ii < RSSI_STAT_COUNT; ii++) + pBSSList->ldBmAverage[ii] = 0; + } + + pBSSList->uIELength = uIELength; + if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN) + pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN; + memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength); + + return true; +} + +/*+ + * + * Routine Description: + * Update BSS set in known BSS list + * + * Return Value: + * true if success. + * +-*/ +// TODO: input structure modify + +int BSSbUpdateToBSSList(struct vnt_private *pDevice, + u64 qwTimestamp, + u16 wBeaconInterval, + u16 wCapInfo, + u8 byCurrChannel, + int bChannelHit, + PWLAN_IE_SSID pSSID, + PWLAN_IE_SUPP_RATES pSuppRates, + PWLAN_IE_SUPP_RATES pExtSuppRates, + PERPObject psERP, + PWLAN_IE_RSN pRSN, + PWLAN_IE_RSN_EXT pRSNWPA, + PWLAN_IE_COUNTRY pIE_Country, + PWLAN_IE_QUIET pIE_Quiet, + PKnownBSS pBSSList, + u32 uIELength, + u8 *pbyIEs, + void *pRxPacketContext) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct vnt_rx_mgmt *pRxPacket = + (struct vnt_rx_mgmt *)pRxPacketContext; + int ii, jj; + signed long ldBm, ldBmSum; + bool bParsingQuiet = false; + + if (pBSSList == NULL) + return false; + + pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp); + + pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval); + pBSSList->wCapInfo = cpu_to_le16(wCapInfo); + pBSSList->uClearCount = 0; + pBSSList->uChannel = byCurrChannel; + + if (pSSID->len > WLAN_SSID_MAXLEN) + pSSID->len = WLAN_SSID_MAXLEN; + + if ((pSSID->len != 0) && (pSSID->abySSID[0] != 0)) + memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN); + memcpy(pBSSList->abySuppRates, pSuppRates,pSuppRates->len + WLAN_IEHDR_LEN); + + if (pExtSuppRates != NULL) { + memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,pExtSuppRates->len + WLAN_IEHDR_LEN); + } else { + memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); + } + pBSSList->sERP.byERP = psERP->byERP; + pBSSList->sERP.bERPExist = psERP->bERPExist; + + // Check if BSS is 802.11a/b/g + if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11A; + } else { + if (pBSSList->sERP.bERPExist == true) { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11G; + } else { + pBSSList->eNetworkTypeInUse = PHY_TYPE_11B; + } + } + + pBSSList->byRxRate = pRxPacket->byRxRate; + pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF; + if(bChannelHit) + pBSSList->uRSSI = pRxPacket->uRSSI; + pBSSList->bySQ = pRxPacket->bySQ; + + if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && + (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { + // assoc with BSS + if (pBSSList == pMgmt->pCurrBSS) { + bParsingQuiet = true; + } + } + + WPA_ClearRSN(pBSSList); //mike update + + if (pRSNWPA != NULL) { + unsigned int uLen = pRSNWPA->len + 2; + if (uLen <= (uIELength - + (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) { + pBSSList->wWPALen = uLen; + memcpy(pBSSList->byWPAIE, pRSNWPA, uLen); + WPA_ParseRSN(pBSSList, pRSNWPA); + } + } + + WPA2_ClearRSN(pBSSList); //mike update + + if (pRSN != NULL) { + unsigned int uLen = pRSN->len + 2; + if (uLen <= (uIELength - + (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) { + pBSSList->wRSNLen = uLen; + memcpy(pBSSList->byRSNIE, pRSN, uLen); + WPA2vParseRSN(pBSSList, pRSN); + } + } + + if (pRxPacket->uRSSI != 0) { + RFvRSSITodBm(pDevice, (u8)(pRxPacket->uRSSI), &ldBm); + // Monitor if RSSI is too strong. + pBSSList->byRSSIStatCnt++; + pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT; + pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm; + ldBmSum = 0; + for (ii = 0, jj = 0; ii < RSSI_STAT_COUNT; ii++) { + if (pBSSList->ldBmAverage[ii] != 0) { + pBSSList->ldBmMAX = + max(pBSSList->ldBmAverage[ii], ldBm); + ldBmSum += + pBSSList->ldBmAverage[ii]; + jj++; + } + } + pBSSList->ldBmAverRange = ldBmSum /jj; + } + + pBSSList->uIELength = uIELength; + if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN) + pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN; + memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength); + + return true; +} + +/*+ + * + * Routine Description: + * Search Node DB table to find the index of matched DstAddr + * + * Return Value: + * None + * +-*/ + +int BSSbIsSTAInNodeDB(struct vnt_private *pDevice, + u8 *abyDstAddr, u32 *puNodeIndex) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + unsigned int ii; + + // Index = 0 reserved for AP Node + for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) { + if (pMgmt->sNodeDBTable[ii].bActive) { + if (!compare_ether_addr(abyDstAddr, + pMgmt->sNodeDBTable[ii].abyMACAddr)) { + *puNodeIndex = ii; + return true; + } + } + } + + return false; +}; + +/*+ + * + * Routine Description: + * Find an empty node and allocate it; if no empty node + * is found, then use the most inactive one. + * + * Return Value: + * None + * +-*/ +void BSSvCreateOneNode(struct vnt_private *pDevice, u32 *puNodeIndex) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + u32 BigestCount = 0; + u32 SelectIndex; + struct sk_buff *skb; + + // Index = 0 reserved for AP Node (In STA mode) + // Index = 0 reserved for Broadcast/MultiCast (In AP mode) + SelectIndex = 1; + for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) { + if (pMgmt->sNodeDBTable[ii].bActive) { + if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) { + BigestCount = pMgmt->sNodeDBTable[ii].uInActiveCount; + SelectIndex = ii; + } + } + else { + break; + } + } + + // if not found replace uInActiveCount with the largest one. + if ( ii == (MAX_NODE_NUM + 1)) { + *puNodeIndex = SelectIndex; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Replace inactive node = %d\n", SelectIndex); + // clear ps buffer + if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next != NULL) { + while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)) != NULL) + dev_kfree_skb(skb); + } + } + else { + *puNodeIndex = ii; + } + + memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB)); + pMgmt->sNodeDBTable[*puNodeIndex].bActive = true; + pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND; + // for AP mode PS queue + skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue); + pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0; + pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0; + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii); +}; + +/*+ + * + * Routine Description: + * Remove Node by NodeIndex + * + * + * Return Value: + * None + * +-*/ + +void BSSvRemoveOneNode(struct vnt_private *pDevice, u32 uNodeIndex) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80}; + struct sk_buff *skb; + + while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)) != NULL) + dev_kfree_skb(skb); + // clear context + memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB)); + // clear tx bit map + pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &= ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7]; +}; +/*+ + * + * Routine Description: + * Update AP Node content in Index 0 of KnownNodeDB + * + * + * Return Value: + * None + * +-*/ + +void BSSvUpdateAPNode(struct vnt_private *pDevice, u16 *pwCapInfo, + PWLAN_IE_SUPP_RATES pSuppRates, PWLAN_IE_SUPP_RATES pExtSuppRates) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + u32 uRateLen = WLAN_RATES_MAXLEN; + + memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB)); + + pMgmt->sNodeDBTable[0].bActive = true; + if (pDevice->byBBType == BB_TYPE_11B) { + uRateLen = WLAN_RATES_MAXLEN_11B; + } + pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pSuppRates, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, + uRateLen); + pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pExtSuppRates, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, + uRateLen); + RATEvParseMaxRate((void *) pDevice, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, + true, + &(pMgmt->sNodeDBTable[0].wMaxBasicRate), + &(pMgmt->sNodeDBTable[0].wMaxSuppRate), + &(pMgmt->sNodeDBTable[0].wSuppRate), + &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate), + &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate) + ); + memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN); + pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate; + pMgmt->sNodeDBTable[0].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo); + pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND; + // Auto rate fallback function initiation. + // RATEbInit(pDevice); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pMgmt->sNodeDBTable[0].wTxDataRate = %d \n", pMgmt->sNodeDBTable[0].wTxDataRate); + +}; + +/*+ + * + * Routine Description: + * Add Multicast Node content in Index 0 of KnownNodeDB + * + * + * Return Value: + * None + * +-*/ + +void BSSvAddMulticastNode(struct vnt_private *pDevice) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + + if (!pDevice->bEnableHostWEP) + memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB)); + memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN); + pMgmt->sNodeDBTable[0].bActive = true; + pMgmt->sNodeDBTable[0].bPSEnable = false; + skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue); + RATEvParseMaxRate((void *) pDevice, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, + (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, + true, + &(pMgmt->sNodeDBTable[0].wMaxBasicRate), + &(pMgmt->sNodeDBTable[0].wMaxSuppRate), + &(pMgmt->sNodeDBTable[0].wSuppRate), + &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate), + &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate) + ); + pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate; + pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND; + +}; + +/*+ + * + * Routine Description: + * + * + * Second call back function to update Node DB info & AP link status + * + * + * Return Value: + * none. + * +-*/ + +void BSSvSecondCallBack(struct vnt_private *pDevice) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + PWLAN_IE_SSID pItemSSID, pCurrSSID; + u32 uSleepySTACnt = 0; + u32 uNonShortSlotSTACnt = 0; + u32 uLongPreambleSTACnt = 0; + + spin_lock_irq(&pDevice->lock); + + pDevice->uAssocCount = 0; + + //Power Saving Mode Tx Burst + if ( pDevice->bEnablePSMode == true ) { + pDevice->ulPSModeWaitTx++; + if ( pDevice->ulPSModeWaitTx >= 2 ) { + pDevice->ulPSModeWaitTx = 0; + pDevice->bPSModeTxBurst = false; + } + } + + pDevice->byERPFlag &= + ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1)); + + if (pDevice->wUseProtectCntDown > 0) { + pDevice->wUseProtectCntDown --; + } + else { + // disable protect mode + pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1)); + } + +if(pDevice->byReAssocCount > 0) { + pDevice->byReAssocCount++; + if((pDevice->byReAssocCount > 10) && (pDevice->bLinkPass != true)) { //10 sec timeout + printk("Re-association timeout!!!\n"); + pDevice->byReAssocCount = 0; + // if(pDevice->bWPASuppWextEnabled == true) + { + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof (wrqu)); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n"); + wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL); + } + } + else if(pDevice->bLinkPass == true) + pDevice->byReAssocCount = 0; +} + + pMgmt->eLastState = pMgmt->eCurrState ; + + s_uCalculateLinkQual(pDevice); + + for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) { + + if (pMgmt->sNodeDBTable[ii].bActive) { + // Increase in-activity counter + pMgmt->sNodeDBTable[ii].uInActiveCount++; + + if (ii > 0) { + if (pMgmt->sNodeDBTable[ii].uInActiveCount > MAX_INACTIVE_COUNT) { + BSSvRemoveOneNode(pDevice, ii); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "Inactive timeout [%d] sec, STA index = [%d] remove\n", MAX_INACTIVE_COUNT, ii); + continue; + } + + if (pMgmt->sNodeDBTable[ii].eNodeState >= NODE_ASSOC) { + + pDevice->uAssocCount++; + + // check if Non ERP exist + if (pMgmt->sNodeDBTable[ii].uInActiveCount < ERP_RECOVER_COUNT) { + if (!pMgmt->sNodeDBTable[ii].bShortPreamble) { + pDevice->byERPFlag |= WLAN_SET_ERP_BARKER_MODE(1); + uLongPreambleSTACnt ++; + } + if (!pMgmt->sNodeDBTable[ii].bERPExist) { + pDevice->byERPFlag |= WLAN_SET_ERP_NONERP_PRESENT(1); + pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1); + } + if (!pMgmt->sNodeDBTable[ii].bShortSlotTime) + uNonShortSlotSTACnt++; + } + } + + // check if any STA in PS mode + if (pMgmt->sNodeDBTable[ii].bPSEnable) + uSleepySTACnt++; + + } + + // Rate fallback check + if (!pDevice->bFixRate) { + if (ii > 0) { + // ii = 0 for multicast node (AP & Adhoc) + RATEvTxRateFallBack((void *)pDevice, + &(pMgmt->sNodeDBTable[ii])); + } + else { + // ii = 0 reserved for unicast AP node (Infra STA) + if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) + RATEvTxRateFallBack((void *)pDevice, + &(pMgmt->sNodeDBTable[ii])); + } + + } + + // check if pending PS queue + if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Index= %d, Queue = %d pending \n", + ii, pMgmt->sNodeDBTable[ii].wEnQueueCnt); + if ((ii >0) && (pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15)) { + BSSvRemoveOneNode(pDevice, ii); + DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Pending many queues PS STA Index = %d remove \n", ii); + continue; + } + } + } + + } + + if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->byBBType == BB_TYPE_11G)) { + + // on/off protect mode + if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) { + if (!pDevice->bProtectMode) { + MACvEnableProtectMD(pDevice); + pDevice->bProtectMode = true; + } + } + else { + if (pDevice->bProtectMode) { + MACvDisableProtectMD(pDevice); + pDevice->bProtectMode = false; + } + } + // on/off short slot time + + if (uNonShortSlotSTACnt > 0) { + if (pDevice->bShortSlotTime) { + pDevice->bShortSlotTime = false; + BBvSetShortSlotTime(pDevice); + vUpdateIFS((void *)pDevice); + } + } + else { + if (!pDevice->bShortSlotTime) { + pDevice->bShortSlotTime = true; + BBvSetShortSlotTime(pDevice); + vUpdateIFS((void *)pDevice); + } + } + + // on/off barker long preamble mode + + if (uLongPreambleSTACnt > 0) { + if (!pDevice->bBarkerPreambleMd) { + MACvEnableBarkerPreambleMd(pDevice); + pDevice->bBarkerPreambleMd = true; + } + } + else { + if (pDevice->bBarkerPreambleMd) { + MACvDisableBarkerPreambleMd(pDevice); + pDevice->bBarkerPreambleMd = false; + } + } + + } + + // Check if any STA in PS mode, enable DTIM multicast deliver + if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { + if (uSleepySTACnt > 0) + pMgmt->sNodeDBTable[0].bPSEnable = true; + else + pMgmt->sNodeDBTable[0].bPSEnable = false; + } + + pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID; + pCurrSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID; + + if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) || + (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) { + + if (pMgmt->sNodeDBTable[0].bActive) { // Assoc with BSS + + if (pDevice->bUpdateBBVGA) { + s_vCheckSensitivity(pDevice); + s_vCheckPreEDThreshold(pDevice); + } + + if ((pMgmt->sNodeDBTable[0].uInActiveCount >= (LOST_BEACON_COUNT/2)) && + (pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) ) { + pDevice->byBBVGANew = pDevice->abyBBVGA[0]; + bScheduleCommand((void *) pDevice, + WLAN_CMD_CHANGE_BBSENSITIVITY, + NULL); + } + + if (pMgmt->sNodeDBTable[0].uInActiveCount >= LOST_BEACON_COUNT) { + pMgmt->sNodeDBTable[0].bActive = false; + pMgmt->eCurrMode = WMAC_MODE_STANDBY; + pMgmt->eCurrState = WMAC_STATE_IDLE; + netif_stop_queue(pDevice->dev); + pDevice->bLinkPass = false; + ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW); + pDevice->bRoaming = true; + pDevice->bIsRoaming = false; + + DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Lost AP beacon [%d] sec, disconnected !\n", pMgmt->sNodeDBTable[0].uInActiveCount); + /* let wpa supplicant know AP may disconnect */ + { + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof (wrqu)); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n"); + wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL); + } + } + } + else if (pItemSSID->len != 0) { +//Davidwang + if ((pDevice->bEnableRoaming == true)&&(!(pMgmt->Cisco_cckm))) { +DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bRoaming %d, !\n", pDevice->bRoaming ); +DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bIsRoaming %d, !\n", pDevice->bIsRoaming ); + if ((pDevice->bRoaming == true)&&(pDevice->bIsRoaming == true)){ + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Fast Roaming ...\n"); + BSSvClearBSSList((void *) pDevice, pDevice->bLinkPass); + bScheduleCommand((void *) pDevice, + WLAN_CMD_BSSID_SCAN, + pMgmt->abyDesireSSID); + bScheduleCommand((void *) pDevice, + WLAN_CMD_SSID, + pMgmt->abyDesireSSID); + pDevice->uAutoReConnectTime = 0; + pDevice->uIsroamingTime = 0; + pDevice->bRoaming = false; + } + else if ((pDevice->bRoaming == false)&&(pDevice->bIsRoaming == true)) { + pDevice->uIsroamingTime++; + if (pDevice->uIsroamingTime >= 20) + pDevice->bIsRoaming = false; + } + + } +else { + if (pDevice->uAutoReConnectTime < 10) { + pDevice->uAutoReConnectTime++; + //network manager support need not do Roaming scan??? + if(pDevice->bWPASuppWextEnabled ==true) + pDevice->uAutoReConnectTime = 0; + } + else { + //mike use old encryption status for wpa reauthen + if(pDevice->bWPADEVUp) + pDevice->eEncryptionStatus = pDevice->eOldEncryptionStatus; + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Roaming ...\n"); + BSSvClearBSSList((void *) pDevice, pDevice->bLinkPass); + pMgmt->eScanType = WMAC_SCAN_ACTIVE; + bScheduleCommand((void *) pDevice, + WLAN_CMD_BSSID_SCAN, + pMgmt->abyDesireSSID); + bScheduleCommand((void *) pDevice, + WLAN_CMD_SSID, + pMgmt->abyDesireSSID); + pDevice->uAutoReConnectTime = 0; + } + } + } + } + + if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { + // if adhoc started which essid is NULL string, rescanning. + if ((pMgmt->eCurrState == WMAC_STATE_STARTED) && (pCurrSSID->len == 0)) { + if (pDevice->uAutoReConnectTime < 10) { + pDevice->uAutoReConnectTime++; + } + else { + DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Adhoc re-scanning ...\n"); + pMgmt->eScanType = WMAC_SCAN_ACTIVE; + bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN, NULL); + bScheduleCommand((void *) pDevice, WLAN_CMD_SSID, NULL); + pDevice->uAutoReConnectTime = 0; + }; + } + if (pMgmt->eCurrState == WMAC_STATE_JOINTED) { + + if (pDevice->bUpdateBBVGA) { + s_vCheckSensitivity(pDevice); + s_vCheckPreEDThreshold(pDevice); + } + if (pMgmt->sNodeDBTable[0].uInActiveCount >=ADHOC_LOST_BEACON_COUNT) { + DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Lost other STA beacon [%d] sec, started !\n", pMgmt->sNodeDBTable[0].uInActiveCount); + pMgmt->sNodeDBTable[0].uInActiveCount = 0; + pMgmt->eCurrState = WMAC_STATE_STARTED; + netif_stop_queue(pDevice->dev); + pDevice->bLinkPass = false; + ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW); + } + } + } + + if (pDevice->bLinkPass == true) { + if (netif_queue_stopped(pDevice->dev)) + netif_wake_queue(pDevice->dev); + } + + spin_unlock_irq(&pDevice->lock); + + pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ); + add_timer(&pMgmt->sTimerSecondCallback); +} + +/*+ + * + * Routine Description: + * + * + * Update Tx attemps, Tx failure counter in Node DB + * + * + * Return Value: + * none. + * +-*/ + +void BSSvUpdateNodeTxCounter(struct vnt_private *pDevice, + PSStatCounter pStatistic, u8 byTSR, u8 byPktNO) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + u32 uNodeIndex = 0; + u8 byTxRetry; + u16 wRate; + u16 wFallBackRate = RATE_1M; + u8 byFallBack; + int ii; + u8 *pbyDestAddr; + u8 byPktNum; + u16 wFIFOCtl; + + byPktNum = (byPktNO & 0x0F) >> 4; + byTxRetry = (byTSR & 0xF0) >> 4; + wRate = (u16) (byPktNO & 0xF0) >> 4; + wFIFOCtl = pStatistic->abyTxPktInfo[byPktNum].wFIFOCtl; + pbyDestAddr = (u8 *) &( pStatistic->abyTxPktInfo[byPktNum].abyDestAddr[0]); + + if (wFIFOCtl & FIFOCTL_AUTO_FB_0) { + byFallBack = AUTO_FB_0; + } else if (wFIFOCtl & FIFOCTL_AUTO_FB_1) { + byFallBack = AUTO_FB_1; + } else { + byFallBack = AUTO_FB_NONE; + } + + // Only Unicast using support rates + if (wFIFOCtl & FIFOCTL_NEEDACK) { + if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) { + pMgmt->sNodeDBTable[0].uTxAttempts += 1; + if ( !(byTSR & (TSR_TMO | TSR_RETRYTMO))) { + // transmit success, TxAttempts at least plus one + pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++; + if ( (byFallBack == AUTO_FB_NONE) || + (wRate < RATE_18M) ) { + wFallBackRate = wRate; + } else if (byFallBack == AUTO_FB_0) { + if (byTxRetry < 5) + wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry]; + else + wFallBackRate = awHWRetry0[wRate-RATE_18M][4]; + } else if (byFallBack == AUTO_FB_1) { + if (byTxRetry < 5) + wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry]; + else + wFallBackRate = awHWRetry1[wRate-RATE_18M][4]; + } + pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++; + } else { + pMgmt->sNodeDBTable[0].uTxFailures ++; + } + pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry; + if (byTxRetry != 0) { + pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE]+=byTxRetry; + if ( (byFallBack == AUTO_FB_NONE) || + (wRate < RATE_18M) ) { + pMgmt->sNodeDBTable[0].uTxFail[wRate]+=byTxRetry; + } else if (byFallBack == AUTO_FB_0) { + for (ii = 0; ii < byTxRetry; ii++) { + if (ii < 5) + wFallBackRate = + awHWRetry0[wRate-RATE_18M][ii]; + else + wFallBackRate = + awHWRetry0[wRate-RATE_18M][4]; + pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++; + } + } else if (byFallBack == AUTO_FB_1) { + for (ii = 0; ii < byTxRetry; ii++) { + if (ii < 5) + wFallBackRate = + awHWRetry1[wRate-RATE_18M][ii]; + else + wFallBackRate = + awHWRetry1[wRate-RATE_18M][4]; + pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++; + } + } + } + } + + if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) || + (pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) { + + if (BSSbIsSTAInNodeDB((void *) pDevice, + pbyDestAddr, + &uNodeIndex)) { + pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1; + if ( !(byTSR & (TSR_TMO | TSR_RETRYTMO))) { + // transmit success, TxAttempts at least plus one + pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++; + if ( (byFallBack == AUTO_FB_NONE) || + (wRate < RATE_18M) ) { + wFallBackRate = wRate; + } else if (byFallBack == AUTO_FB_0) { + if (byTxRetry < 5) + wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry]; + else + wFallBackRate = awHWRetry0[wRate-RATE_18M][4]; + } else if (byFallBack == AUTO_FB_1) { + if (byTxRetry < 5) + wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry]; + else + wFallBackRate = awHWRetry1[wRate-RATE_18M][4]; + } + pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++; + } else { + pMgmt->sNodeDBTable[uNodeIndex].uTxFailures ++; + } + pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry; + if (byTxRetry != 0) { + pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE]+=byTxRetry; + if ( (byFallBack == AUTO_FB_NONE) || + (wRate < RATE_18M) ) { + pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate]+=byTxRetry; + } else if (byFallBack == AUTO_FB_0) { + for (ii = 0; ii < byTxRetry; ii++) { + if (ii < 5) + wFallBackRate = + awHWRetry0[wRate-RATE_18M][ii]; + else + wFallBackRate = + awHWRetry0[wRate-RATE_18M][4]; + pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++; + } + } else if (byFallBack == AUTO_FB_1) { + for (ii = 0; ii < byTxRetry; ii++) { + if (ii < 5) + wFallBackRate = awHWRetry1[wRate-RATE_18M][ii]; + else + wFallBackRate = awHWRetry1[wRate-RATE_18M][4]; + pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++; + } + } + } + } + } + } +} + +/*+ + * + * Routine Description: + * Clear Nodes & skb in DB Table + * + * + * Parameters: + * In: + * hDeviceContext - The adapter context. + * uStartIndex - starting index + * Out: + * none + * + * Return Value: + * None. + * +-*/ + +void BSSvClearNodeDBTable(struct vnt_private *pDevice, u32 uStartIndex) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct sk_buff *skb; + int ii; + + for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) { + if (pMgmt->sNodeDBTable[ii].bActive) { + // check if sTxPSQueue has been initial + if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next != NULL) { + while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue)) != NULL){ + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PS skb != NULL %d\n", ii); + dev_kfree_skb(skb); + } + } + memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB)); + } + } +}; + +static void s_vCheckSensitivity(struct vnt_private *pDevice) +{ + PKnownBSS pBSSList = NULL; + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + + if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) || + ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) { + pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID); + if (pBSSList != NULL) { + /* Update BB register if RSSI is too strong */ + signed long LocalldBmAverage = 0; + signed long uNumofdBm = 0; + for (ii = 0; ii < RSSI_STAT_COUNT; ii++) { + if (pBSSList->ldBmAverage[ii] != 0) { + uNumofdBm ++; + LocalldBmAverage += pBSSList->ldBmAverage[ii]; + } + } + if (uNumofdBm > 0) { + LocalldBmAverage = LocalldBmAverage/uNumofdBm; + for (ii=0;ii<BB_VGA_LEVEL;ii++) { + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"LocalldBmAverage:%ld, %ld %02x\n", LocalldBmAverage, pDevice->ldBmThreshold[ii], pDevice->abyBBVGA[ii]); + if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) { + pDevice->byBBVGANew = pDevice->abyBBVGA[ii]; + break; + } + } + if (pDevice->byBBVGANew != pDevice->byBBVGACurrent) { + pDevice->uBBVGADiffCount++; + if (pDevice->uBBVGADiffCount >= BB_VGA_CHANGE_THRESHOLD) + bScheduleCommand(pDevice, + WLAN_CMD_CHANGE_BBSENSITIVITY, + NULL); + } else { + pDevice->uBBVGADiffCount = 0; + } + } + } + } +} + +static void s_uCalculateLinkQual(struct vnt_private *pDevice) +{ + unsigned long TxOkRatio, TxCnt; + unsigned long RxOkRatio, RxCnt; + unsigned long RssiRatio; + long ldBm; + +TxCnt = pDevice->scStatistic.TxNoRetryOkCount + + pDevice->scStatistic.TxRetryOkCount + + pDevice->scStatistic.TxFailCount; +RxCnt = pDevice->scStatistic.RxFcsErrCnt + + pDevice->scStatistic.RxOkCnt; +TxOkRatio = (TxCnt < 6) ? 4000:((pDevice->scStatistic.TxNoRetryOkCount * 4000) / TxCnt); +RxOkRatio = (RxCnt < 6) ? 2000:((pDevice->scStatistic.RxOkCnt * 2000) / RxCnt); +//decide link quality +if(pDevice->bLinkPass !=true) +{ + pDevice->scStatistic.LinkQuality = 0; + pDevice->scStatistic.SignalStren = 0; +} +else +{ + RFvRSSITodBm(pDevice, (u8)(pDevice->uCurrRSSI), &ldBm); + if(-ldBm < 50) { + RssiRatio = 4000; + } + else if(-ldBm > 90) { + RssiRatio = 0; + } + else { + RssiRatio = (40-(-ldBm-50))*4000/40; + } + pDevice->scStatistic.SignalStren = RssiRatio/40; + pDevice->scStatistic.LinkQuality = (RssiRatio+TxOkRatio+RxOkRatio)/100; +} + pDevice->scStatistic.RxFcsErrCnt = 0; + pDevice->scStatistic.RxOkCnt = 0; + pDevice->scStatistic.TxFailCount = 0; + pDevice->scStatistic.TxNoRetryOkCount = 0; + pDevice->scStatistic.TxRetryOkCount = 0; +} + +void BSSvClearAnyBSSJoinRecord(struct vnt_private *pDevice) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + + for (ii = 0; ii < MAX_BSS_NUM; ii++) + pMgmt->sBSSList[ii].bSelected = false; + + return; +} + +static void s_vCheckPreEDThreshold(struct vnt_private *pDevice) +{ + PKnownBSS pBSSList = NULL; + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + + if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) || + ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) { + pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID); + if (pBSSList != NULL) { + pDevice->byBBPreEDRSSI = (u8) (~(pBSSList->ldBmAverRange) + 1); + BBvUpdatePreEDThreshold(pDevice, false); + } + } +} + |