diff options
Diffstat (limited to 'drivers/staging/vt6655/datarate.c')
| -rw-r--r-- | drivers/staging/vt6655/datarate.c | 469 |
1 files changed, 225 insertions, 244 deletions
diff --git a/drivers/staging/vt6655/datarate.c b/drivers/staging/vt6655/datarate.c index b86ec1b6d187..e7b6bc7de4ac 100644 --- a/drivers/staging/vt6655/datarate.c +++ b/drivers/staging/vt6655/datarate.c @@ -45,16 +45,12 @@ /*--------------------- Static Definitions -------------------------*/ - - - /*--------------------- Static Classes ----------------------------*/ - - extern unsigned short TxRate_iwconfig; //2008-5-8 <add> by chester +extern unsigned short TxRate_iwconfig; //2008-5-8 <add> by chester /*--------------------- Static Variables --------------------------*/ //static int msglevel =MSG_LEVEL_DEBUG; -static int msglevel =MSG_LEVEL_INFO; +static int msglevel = MSG_LEVEL_INFO; const unsigned char acbyIERate[MAX_RATE] = {0x02, 0x04, 0x0B, 0x16, 0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C}; @@ -64,32 +60,28 @@ const unsigned char acbyIERate[MAX_RATE] = /*--------------------- Static Functions --------------------------*/ -void s_vResetCounter ( - PKnownNodeDB psNodeDBTable - ); - - +void s_vResetCounter( + PKnownNodeDB psNodeDBTable +); void -s_vResetCounter ( - PKnownNodeDB psNodeDBTable - ) +s_vResetCounter( + PKnownNodeDB psNodeDBTable +) { - unsigned char ii; + unsigned char ii; - // clear statistic counter for auto_rate - for(ii=0;ii<=MAX_RATE;ii++) { - psNodeDBTable->uTxOk[ii] = 0; - psNodeDBTable->uTxFail[ii] = 0; - } + // clear statistic counter for auto_rate + for (ii = 0; ii <= MAX_RATE; ii++) { + psNodeDBTable->uTxOk[ii] = 0; + psNodeDBTable->uTxFail[ii] = 0; + } } /*--------------------- Export Variables --------------------------*/ - /*--------------------- Export Functions --------------------------*/ - /*+ * * Description: @@ -103,26 +95,24 @@ s_vResetCounter ( * * Return Value: RateIdx * --*/ + -*/ unsigned char -DATARATEbyGetRateIdx ( - unsigned char byRate - ) +DATARATEbyGetRateIdx( + unsigned char byRate +) { - unsigned char ii; + unsigned char ii; - //Erase basicRate flag. - byRate = byRate & 0x7F;//0111 1111 + //Erase basicRate flag. + byRate = byRate & 0x7F;//0111 1111 - for (ii = 0; ii < MAX_RATE; ii ++) { - if (acbyIERate[ii] == byRate) - return ii; - } - return 0; + for (ii = 0; ii < MAX_RATE; ii++) { + if (acbyIERate[ii] == byRate) + return ii; + } + return 0; } - - /*+ * * Routine Description: @@ -137,13 +127,10 @@ DATARATEbyGetRateIdx ( * * Return Value: none * --*/ + -*/ #define AUTORATE_TXCNT_THRESHOLD 20 #define AUTORATE_INC_THRESHOLD 30 - - - /*+ * * Description: @@ -157,22 +144,22 @@ DATARATEbyGetRateIdx ( * * Return Value: RateIdx * --*/ + -*/ unsigned short wGetRateIdx( - unsigned char byRate - ) + unsigned char byRate +) { - unsigned short ii; + unsigned short ii; - //Erase basicRate flag. - byRate = byRate & 0x7F;//0111 1111 + //Erase basicRate flag. + byRate = byRate & 0x7F;//0111 1111 - for (ii = 0; ii < MAX_RATE; ii ++) { - if (acbyIERate[ii] == byRate) - return ii; - } - return 0; + for (ii = 0; ii < MAX_RATE; ii++) { + if (acbyIERate[ii] == byRate) + return ii; + } + return 0; } /*+ @@ -193,102 +180,99 @@ wGetRateIdx( * * Return Value: none * --*/ + -*/ void -RATEvParseMaxRate ( - void *pDeviceHandler, - PWLAN_IE_SUPP_RATES pItemRates, - PWLAN_IE_SUPP_RATES pItemExtRates, - bool bUpdateBasicRate, - unsigned short *pwMaxBasicRate, - unsigned short *pwMaxSuppRate, - unsigned short *pwSuppRate, - unsigned char *pbyTopCCKRate, - unsigned char *pbyTopOFDMRate - ) +RATEvParseMaxRate( + void *pDeviceHandler, + PWLAN_IE_SUPP_RATES pItemRates, + PWLAN_IE_SUPP_RATES pItemExtRates, + bool bUpdateBasicRate, + unsigned short *pwMaxBasicRate, + unsigned short *pwMaxSuppRate, + unsigned short *pwSuppRate, + unsigned char *pbyTopCCKRate, + unsigned char *pbyTopOFDMRate +) { -PSDevice pDevice = (PSDevice) pDeviceHandler; -unsigned int ii; -unsigned char byHighSuppRate = 0; -unsigned char byRate = 0; -unsigned short wOldBasicRate = pDevice->wBasicRate; -unsigned int uRateLen; - - - if (pItemRates == NULL) - return; - - *pwSuppRate = 0; - uRateLen = pItemRates->len; - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate Len: %d\n", uRateLen); - if (pDevice->eCurrentPHYType != PHY_TYPE_11B) { - if (uRateLen > WLAN_RATES_MAXLEN) - uRateLen = WLAN_RATES_MAXLEN; - } else { - if (uRateLen > WLAN_RATES_MAXLEN_11B) - uRateLen = WLAN_RATES_MAXLEN_11B; - } - - for (ii = 0; ii < uRateLen; ii++) { - byRate = (unsigned char)(pItemRates->abyRates[ii]); - if (WLAN_MGMT_IS_BASICRATE(byRate) && - (bUpdateBasicRate == true)) { - // Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate - CARDbAddBasicRate((void *)pDevice, wGetRateIdx(byRate)); - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate)); - } - byRate = (unsigned char)(pItemRates->abyRates[ii]&0x7F); - if (byHighSuppRate == 0) - byHighSuppRate = byRate; - if (byRate > byHighSuppRate) - byHighSuppRate = byRate; - *pwSuppRate |= (1<<wGetRateIdx(byRate)); - } - if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) && - (pDevice->eCurrentPHYType != PHY_TYPE_11B)) { - - unsigned int uExtRateLen = pItemExtRates->len; - - if (uExtRateLen > WLAN_RATES_MAXLEN) - uExtRateLen = WLAN_RATES_MAXLEN; - - for (ii = 0; ii < uExtRateLen ; ii++) { - byRate = (unsigned char)(pItemExtRates->abyRates[ii]); - // select highest basic rate - if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) { - // Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate - CARDbAddBasicRate((void *)pDevice, wGetRateIdx(byRate)); - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate)); - } - byRate = (unsigned char)(pItemExtRates->abyRates[ii]&0x7F); - if (byHighSuppRate == 0) - byHighSuppRate = byRate; - if (byRate > byHighSuppRate) - byHighSuppRate = byRate; - *pwSuppRate |= (1<<wGetRateIdx(byRate)); - //DBG_PRN_GRP09(("ParseMaxRate : HighSuppRate: %d, %X\n", wGetRateIdx(byRate), byRate)); - } - } //if(pItemExtRates != NULL) - - if ((pDevice->byPacketType == PK_TYPE_11GB) && CARDbIsOFDMinBasicRate((void *)pDevice)) { - pDevice->byPacketType = PK_TYPE_11GA; - } - - *pbyTopCCKRate = pDevice->byTopCCKBasicRate; - *pbyTopOFDMRate = pDevice->byTopOFDMBasicRate; - *pwMaxSuppRate = wGetRateIdx(byHighSuppRate); - if ((pDevice->byPacketType==PK_TYPE_11B) || (pDevice->byPacketType==PK_TYPE_11GB)) - *pwMaxBasicRate = pDevice->byTopCCKBasicRate; - else - *pwMaxBasicRate = pDevice->byTopOFDMBasicRate; - if (wOldBasicRate != pDevice->wBasicRate) - CARDvSetRSPINF((void *)pDevice, pDevice->eCurrentPHYType); - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Exit ParseMaxRate\n"); + PSDevice pDevice = (PSDevice) pDeviceHandler; + unsigned int ii; + unsigned char byHighSuppRate = 0; + unsigned char byRate = 0; + unsigned short wOldBasicRate = pDevice->wBasicRate; + unsigned int uRateLen; + + if (pItemRates == NULL) + return; + + *pwSuppRate = 0; + uRateLen = pItemRates->len; + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ParseMaxRate Len: %d\n", uRateLen); + if (pDevice->eCurrentPHYType != PHY_TYPE_11B) { + if (uRateLen > WLAN_RATES_MAXLEN) + uRateLen = WLAN_RATES_MAXLEN; + } else { + if (uRateLen > WLAN_RATES_MAXLEN_11B) + uRateLen = WLAN_RATES_MAXLEN_11B; + } + + for (ii = 0; ii < uRateLen; ii++) { + byRate = (unsigned char)(pItemRates->abyRates[ii]); + if (WLAN_MGMT_IS_BASICRATE(byRate) && + (bUpdateBasicRate == true)) { + // Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate + CARDbAddBasicRate((void *)pDevice, wGetRateIdx(byRate)); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate)); + } + byRate = (unsigned char)(pItemRates->abyRates[ii]&0x7F); + if (byHighSuppRate == 0) + byHighSuppRate = byRate; + if (byRate > byHighSuppRate) + byHighSuppRate = byRate; + *pwSuppRate |= (1<<wGetRateIdx(byRate)); + } + if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) && + (pDevice->eCurrentPHYType != PHY_TYPE_11B)) { + unsigned int uExtRateLen = pItemExtRates->len; + + if (uExtRateLen > WLAN_RATES_MAXLEN) + uExtRateLen = WLAN_RATES_MAXLEN; + + for (ii = 0; ii < uExtRateLen; ii++) { + byRate = (unsigned char)(pItemExtRates->abyRates[ii]); + // select highest basic rate + if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) { + // Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate + CARDbAddBasicRate((void *)pDevice, wGetRateIdx(byRate)); + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate)); + } + byRate = (unsigned char)(pItemExtRates->abyRates[ii]&0x7F); + if (byHighSuppRate == 0) + byHighSuppRate = byRate; + if (byRate > byHighSuppRate) + byHighSuppRate = byRate; + *pwSuppRate |= (1<<wGetRateIdx(byRate)); + //DBG_PRN_GRP09(("ParseMaxRate : HighSuppRate: %d, %X\n", wGetRateIdx(byRate), byRate)); + } + } //if (pItemExtRates != NULL) + + if ((pDevice->byPacketType == PK_TYPE_11GB) && CARDbIsOFDMinBasicRate((void *)pDevice)) { + pDevice->byPacketType = PK_TYPE_11GA; + } + + *pbyTopCCKRate = pDevice->byTopCCKBasicRate; + *pbyTopOFDMRate = pDevice->byTopOFDMBasicRate; + *pwMaxSuppRate = wGetRateIdx(byHighSuppRate); + if ((pDevice->byPacketType == PK_TYPE_11B) || (pDevice->byPacketType == PK_TYPE_11GB)) + *pwMaxBasicRate = pDevice->byTopCCKBasicRate; + else + *pwMaxBasicRate = pDevice->byTopOFDMBasicRate; + if (wOldBasicRate != pDevice->wBasicRate) + CARDvSetRSPINF((void *)pDevice, pDevice->eCurrentPHYType); + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Exit ParseMaxRate\n"); } - /*+ * * Routine Description: @@ -303,97 +287,95 @@ unsigned int uRateLen; * * Return Value: none * --*/ + -*/ #define AUTORATE_TXCNT_THRESHOLD 20 #define AUTORATE_INC_THRESHOLD 30 void -RATEvTxRateFallBack ( - void *pDeviceHandler, - PKnownNodeDB psNodeDBTable - ) +RATEvTxRateFallBack( + void *pDeviceHandler, + PKnownNodeDB psNodeDBTable +) { -PSDevice pDevice = (PSDevice) pDeviceHandler; -unsigned short wIdxDownRate = 0; -unsigned int ii; + PSDevice pDevice = (PSDevice) pDeviceHandler; + unsigned short wIdxDownRate = 0; + unsigned int ii; //unsigned long dwRateTable[MAX_RATE] = {1, 2, 5, 11, 6, 9, 12, 18, 24, 36, 48, 54}; -bool bAutoRate[MAX_RATE] = {true,true,true,true,false,false,true,true,true,true,true,true}; + bool bAutoRate[MAX_RATE] = {true, true, true, true, false, false, true, true, true, true, true, true}; unsigned long dwThroughputTbl[MAX_RATE] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540}; unsigned long dwThroughput = 0; unsigned short wIdxUpRate = 0; unsigned long dwTxDiff = 0; - if (pDevice->pMgmt->eScanState != WMAC_NO_SCANNING) { - // Don't do Fallback when scanning Channel - return; - } - - psNodeDBTable->uTimeCount ++; - - if (psNodeDBTable->uTxFail[MAX_RATE] > psNodeDBTable->uTxOk[MAX_RATE]) - dwTxDiff = psNodeDBTable->uTxFail[MAX_RATE] - psNodeDBTable->uTxOk[MAX_RATE]; - - if ((psNodeDBTable->uTxOk[MAX_RATE] < AUTORATE_TXOK_CNT) && - (dwTxDiff < AUTORATE_TXFAIL_CNT) && - (psNodeDBTable->uTimeCount < AUTORATE_TIMEOUT)) { - return; - } - - if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT) { - psNodeDBTable->uTimeCount = 0; - } - - - for(ii=0;ii<MAX_RATE;ii++) { - if (psNodeDBTable->wSuppRate & (0x0001<<ii)) { - if (bAutoRate[ii] == true) { - wIdxUpRate = (unsigned short) ii; - } - } else { - bAutoRate[ii] = false; - } - } - - for(ii=0;ii<=psNodeDBTable->wTxDataRate;ii++) { - if ( (psNodeDBTable->uTxOk[ii] != 0) || - (psNodeDBTable->uTxFail[ii] != 0) ) { - dwThroughputTbl[ii] *= psNodeDBTable->uTxOk[ii]; - if (ii < RATE_11M) { - psNodeDBTable->uTxFail[ii] *= 4; - } - dwThroughputTbl[ii] /= (psNodeDBTable->uTxOk[ii] + psNodeDBTable->uTxFail[ii]); - } -// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate %d,Ok: %d, Fail:%d, Throughput:%d\n", + if (pDevice->pMgmt->eScanState != WMAC_NO_SCANNING) { + // Don't do Fallback when scanning Channel + return; + } + + psNodeDBTable->uTimeCount++; + + if (psNodeDBTable->uTxFail[MAX_RATE] > psNodeDBTable->uTxOk[MAX_RATE]) + dwTxDiff = psNodeDBTable->uTxFail[MAX_RATE] - psNodeDBTable->uTxOk[MAX_RATE]; + + if ((psNodeDBTable->uTxOk[MAX_RATE] < AUTORATE_TXOK_CNT) && + (dwTxDiff < AUTORATE_TXFAIL_CNT) && + (psNodeDBTable->uTimeCount < AUTORATE_TIMEOUT)) { + return; + } + + if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT) { + psNodeDBTable->uTimeCount = 0; + } + + for (ii = 0; ii < MAX_RATE; ii++) { + if (psNodeDBTable->wSuppRate & (0x0001<<ii)) { + if (bAutoRate[ii] == true) { + wIdxUpRate = (unsigned short) ii; + } + } else { + bAutoRate[ii] = false; + } + } + + for (ii = 0; ii <= psNodeDBTable->wTxDataRate; ii++) { + if ((psNodeDBTable->uTxOk[ii] != 0) || + (psNodeDBTable->uTxFail[ii] != 0)) { + dwThroughputTbl[ii] *= psNodeDBTable->uTxOk[ii]; + if (ii < RATE_11M) { + psNodeDBTable->uTxFail[ii] *= 4; + } + dwThroughputTbl[ii] /= (psNodeDBTable->uTxOk[ii] + psNodeDBTable->uTxFail[ii]); + } +// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rate %d,Ok: %d, Fail:%d, Throughput:%d\n", // ii, psNodeDBTable->uTxOk[ii], psNodeDBTable->uTxFail[ii], dwThroughputTbl[ii]); - } - dwThroughput = dwThroughputTbl[psNodeDBTable->wTxDataRate]; - - wIdxDownRate = psNodeDBTable->wTxDataRate; - for(ii = psNodeDBTable->wTxDataRate; ii > 0;) { - ii--; - if ( (dwThroughputTbl[ii] > dwThroughput) && - (bAutoRate[ii]==true) ) { - dwThroughput = dwThroughputTbl[ii]; - wIdxDownRate = (unsigned short) ii; - } - } - psNodeDBTable->wTxDataRate = wIdxDownRate; - if (psNodeDBTable->uTxOk[MAX_RATE]) { - if (psNodeDBTable->uTxOk[MAX_RATE] > - (psNodeDBTable->uTxFail[MAX_RATE] * 4) ) { - psNodeDBTable->wTxDataRate = wIdxUpRate; - } - }else { // adhoc, if uTxOk =0 & uTxFail = 0 - if (psNodeDBTable->uTxFail[MAX_RATE] == 0) - psNodeDBTable->wTxDataRate = wIdxUpRate; - } + } + dwThroughput = dwThroughputTbl[psNodeDBTable->wTxDataRate]; + + wIdxDownRate = psNodeDBTable->wTxDataRate; + for (ii = psNodeDBTable->wTxDataRate; ii > 0;) { + ii--; + if ((dwThroughputTbl[ii] > dwThroughput) && + (bAutoRate[ii] == true)) { + dwThroughput = dwThroughputTbl[ii]; + wIdxDownRate = (unsigned short) ii; + } + } + psNodeDBTable->wTxDataRate = wIdxDownRate; + if (psNodeDBTable->uTxOk[MAX_RATE]) { + if (psNodeDBTable->uTxOk[MAX_RATE] > + (psNodeDBTable->uTxFail[MAX_RATE] * 4)) { + psNodeDBTable->wTxDataRate = wIdxUpRate; + } + } else { // adhoc, if uTxOk =0 & uTxFail = 0 + if (psNodeDBTable->uTxFail[MAX_RATE] == 0) + psNodeDBTable->wTxDataRate = wIdxUpRate; + } //2008-5-8 <add> by chester -TxRate_iwconfig=psNodeDBTable->wTxDataRate; - s_vResetCounter(psNodeDBTable); -// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate: %d, U:%d, D:%d\n", psNodeDBTable->wTxDataRate, wIdxUpRate, wIdxDownRate); - - return; + TxRate_iwconfig = psNodeDBTable->wTxDataRate; + s_vResetCounter(psNodeDBTable); +// DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rate: %d, U:%d, D:%d\n", psNodeDBTable->wTxDataRate, wIdxUpRate, wIdxDownRate); + return; } /*+ @@ -408,30 +390,29 @@ TxRate_iwconfig=psNodeDBTable->wTxDataRate; * * Return Value: None * --*/ + -*/ unsigned char -RATEuSetIE ( - PWLAN_IE_SUPP_RATES pSrcRates, - PWLAN_IE_SUPP_RATES pDstRates, - unsigned int uRateLen - ) +RATEuSetIE( + PWLAN_IE_SUPP_RATES pSrcRates, + PWLAN_IE_SUPP_RATES pDstRates, + unsigned int uRateLen +) { - unsigned int ii, uu, uRateCnt = 0; - - if ((pSrcRates == NULL) || (pDstRates == NULL)) - return 0; - - if (pSrcRates->len == 0) - return 0; - - for (ii = 0; ii < uRateLen; ii++) { - for (uu = 0; uu < pSrcRates->len; uu++) { - if ((pSrcRates->abyRates[uu] & 0x7F) == acbyIERate[ii]) { - pDstRates->abyRates[uRateCnt ++] = pSrcRates->abyRates[uu]; - break; - } - } - } - return (unsigned char)uRateCnt; + unsigned int ii, uu, uRateCnt = 0; + + if ((pSrcRates == NULL) || (pDstRates == NULL)) + return 0; + + if (pSrcRates->len == 0) + return 0; + + for (ii = 0; ii < uRateLen; ii++) { + for (uu = 0; uu < pSrcRates->len; uu++) { + if ((pSrcRates->abyRates[uu] & 0x7F) == acbyIERate[ii]) { + pDstRates->abyRates[uRateCnt++] = pSrcRates->abyRates[uu]; + break; + } + } + } + return (unsigned char)uRateCnt; } - |