diff options
Diffstat (limited to 'drivers/staging/vt6656/bssdb.c')
| -rw-r--r-- | drivers/staging/vt6656/bssdb.c | 1466 |
1 files changed, 1466 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c new file mode 100644 index 00000000000..8e9ce96442a --- /dev/null +++ b/drivers/staging/vt6656/bssdb.c @@ -0,0 +1,1466 @@ +/* + * 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-fallback 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 "usbpipe.h" +#include "iowpa.h" +#include "power.h" + +static int msglevel = MSG_LEVEL_INFO; +/* static int msglevel = MSG_LEVEL_DEBUG; */ + +static 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} + }; +static 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) { + 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 && + ((PWLAN_IE_SSID) pbyDesireSSID)->len != 0) + pSSID = (PWLAN_IE_SSID) pbyDesireSSID; + + if (pbyBSSID && 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 && + ether_addr_equal(pCurrBSS->abyBSSID, pbyBSSID)) { + if (pSSID) { + /* compare ssid */ + if (!memcmp(pSSID->abySSID, + ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID, + pSSID->len) && + (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 && + /* matched SSID */ + (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 && + ((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) + pSelect = pCurrBSS; + /* compare RSSI, select the strongest signal */ + else if (pCurrBSS->uRSSI < pSelect->uRSSI) + pSelect = pCurrBSS; + } + } + + pDevice->bSameBSSMaxNum = jj; + + if (pSelect) { + 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 && + pMgmt->sBSSList[ii].bActive && + ether_addr_equal(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 && + ether_addr_equal(pBSSList->abyBSSID, abyBSSID) && + pSSID->len == ((PWLAN_IE_SSID) pBSSList->abySSID)->len && + 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) { + 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 */ + pBSSList == pMgmt->pCurrBSS) + bParsingQuiet = true; + + WPA_ClearRSN(pBSSList); + + if (pRSNWPA) { + 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) { + 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 && + (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; + + + } + } + } + + /* Monitor if RSSI is too strong. */ + pBSSList->byRSSIStatCnt = 0; + + vnt_rf_rssi_to_dbm(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) + 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) + 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 */ + pBSSList == pMgmt->pCurrBSS) + bParsingQuiet = true; + + WPA_ClearRSN(pBSSList); /* mike update */ + + if (pRSNWPA) { + 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) { + 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) { + vnt_rf_rssi_to_dbm(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 && + ether_addr_equal(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) { + while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue))) + 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))) + 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; + + 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 work_struct *work) +{ + struct vnt_private *pDevice = container_of(work, + struct vnt_private, second_callback_work.work); + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + int ii; + PWLAN_IE_SSID pItemSSID, pCurrSSID; + u32 uSleepySTACnt = 0; + u32 uNonShortSlotSTACnt = 0; + u32 uLongPreambleSTACnt = 0; + + if (pDevice->Flags & fMP_DISCONNECTED) + return; + + 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 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) { + /* ii = 0 reserved for unicast AP node (Infra 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 */ + + 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; + + vnt_mac_set_led(pDevice, 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) { + + 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; + vnt_mac_set_led(pDevice, LEDSTS_STS, + LEDSTS_SLOW); + } + } + } + + if (pDevice->bLinkPass == true) { + if ((pMgmt->eAuthenMode < WMAC_AUTH_WPA || + pDevice->fWPA_Authened == true) && + (++pDevice->tx_data_time_out > 40)) { + pDevice->tx_trigger = true; + + PSbSendNullPacket(pDevice); + + pDevice->tx_trigger = false; + pDevice->tx_data_time_out = 0; + } + + if (netif_queue_stopped(pDevice->dev)) + netif_wake_queue(pDevice->dev); + } + + schedule_delayed_work(&pDevice->second_callback_work, HZ); +} + +/* + * Routine Description: + * + * + * Update Tx attemps, Tx failure counter in Node DB + * + * + * Return Value: + * none. + */ +void BSSvUpdateNodeTxCounter(struct vnt_private *pDevice, u8 byTSR, u8 byPktNO) +{ + struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; + struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info; + 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 = pkt_info[byPktNum].fifo_ctl; + pbyDestAddr = pkt_info[byPktNum].dest_addr; + + 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) && + 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) { + while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue))) { + 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) { + /* 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) +{ + struct net_device_stats *stats = &pDevice->stats; + unsigned long TxOkRatio, TxCnt; + unsigned long RxOkRatio, RxCnt; + unsigned long RssiRatio; + unsigned long qual; + long ldBm; + + TxCnt = stats->tx_packets + pDevice->wstats.discard.retries; + + RxCnt = stats->rx_packets + stats->rx_frame_errors; + + TxOkRatio = (TxCnt < 6) ? 4000:((stats->tx_packets * 4000) / TxCnt); + + RxOkRatio = (RxCnt < 6) ? 2000 : + ((stats->rx_packets * 2000) / RxCnt); + + /* decide link quality */ + if (pDevice->bLinkPass != true) { + pDevice->wstats.qual.qual = 0; + } else { + vnt_rf_rssi_to_dbm(pDevice, (u8) (pDevice->uCurrRSSI), &ldBm); + if (-ldBm < 50) + RssiRatio = 4000; + else if (-ldBm > 90) + RssiRatio = 0; + else + RssiRatio = (40-(-ldBm-50)) * 4000 / 40; + + qual = (RssiRatio + TxOkRatio + RxOkRatio) / 100; + if (qual < 100) + pDevice->wstats.qual.qual = (u8) qual; + else + pDevice->wstats.qual.qual = 100; + } +} + +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) { + pDevice->byBBPreEDRSSI = + (u8) (~(pBSSList->ldBmAverRange) + 1); + BBvUpdatePreEDThreshold(pDevice, false); + } + } +} + |