/************************************************************************
* getMaxActiveRate *
************************************************************************
DESCRIPTION: Goes over an array of network rates and returns the max active rate
INPUT: pRates - Rate array
OUTPUT:
RETURN: Max active rate (in network units)
************************************************************************/
ENetRate rate_GetMaxActiveFromStr (TI_UINT8 *pRatesString, TI_UINT32 len, ENetRate eMaxRate)
{
TI_UINT32 i;
for (i = 0; i < len; i++)
{
if (NET_ACTIVE_RATE (pRatesString[i]) && rate_ValidateNet ((ENetRate)pRatesString[i]) == TI_OK)
{
eMaxRate = TI_MAX ((ENetRate)pRatesString[i], eMaxRate);
}
}
return eMaxRate;
}
/**
* \fn scanResultTable_updateRates
* \brief Update a scan result table entry with rates information
*
* Called by the function 'updateSiteInfo()' in order to translate the rates received
* in the beacon or probe response to rate used by the driver. Perfoms the following:
* - Check the rates. validity. If rates are invalid, return
* - Get the max active rate & max basic rate, if invalid, return
* - Translate the max active rate and max basic rate from network rates to host rates.
* The max active & max basic rate are used by the driver from now on in all the processes:
* (selection, join, transmission, etc....)
*
* \param hScanResultTable - handle to the scan result table object
* \param pSite - a pointer to the site entry to update
* \param pFrame - a pointer to the received frame
* \return None
* \sa scanResultTable_UpdateSiteData
*/
void scanResultTable_updateRates(TI_HANDLE hScanResultTable, TSiteEntry *pSite, TScanFrameInfo *pFrame)
{
TI_UINT8 maxBasicRate = 0, maxActiveRate = 0;
TI_UINT32 bitMapExtSupp = 0;
if (pFrame->parsedIEs->content.iePacket.pRates == NULL)
{
return;
}
/* Update the rate elements */
maxBasicRate = rate_GetMaxBasicFromStr ((TI_UINT8 *)pFrame->parsedIEs->content.iePacket.pRates->rates,
pFrame->parsedIEs->content.iePacket.pRates->hdr[1], maxBasicRate);
maxActiveRate = rate_GetMaxActiveFromStr ((TI_UINT8 *)pFrame->parsedIEs->content.iePacket.pRates->rates,
pFrame->parsedIEs->content.iePacket.pRates->hdr[1], maxActiveRate);
if (pFrame->parsedIEs->content.iePacket.pExtRates)
{
maxBasicRate = rate_GetMaxBasicFromStr ((TI_UINT8 *)pFrame->parsedIEs->content.iePacket.pExtRates->rates,
pFrame->parsedIEs->content.iePacket.pExtRates->hdr[1], maxBasicRate);
maxActiveRate = rate_GetMaxActiveFromStr ((TI_UINT8 *)pFrame->parsedIEs->content.iePacket.pExtRates->rates,
pFrame->parsedIEs->content.iePacket.pExtRates->hdr[1], maxActiveRate);
}
if (maxActiveRate == 0)
{
maxActiveRate = maxBasicRate;
}
/* Now update it from network to host rates */
pSite->maxBasicRate = rate_NetToDrv (maxBasicRate);
pSite->maxActiveRate = rate_NetToDrv (maxActiveRate);
if (pSite->maxActiveRate == DRV_RATE_INVALID)
{
}
if (pSite->maxBasicRate != DRV_RATE_INVALID)
{
if (pSite->maxActiveRate != DRV_RATE_INVALID)
{
pSite->maxActiveRate = TI_MAX (pSite->maxActiveRate, pSite->maxBasicRate);
}
} else { /* in case some vendors don't specify basic rates */
pSite->maxBasicRate = pSite->maxActiveRate;
}
/* build rates bit map */
rate_NetStrToDrvBitmap (&pSite->rateMask.supportedRateMask,
pFrame->parsedIEs->content.iePacket.pRates->rates,
pFrame->parsedIEs->content.iePacket.pRates->hdr[1]);
rate_NetBasicStrToDrvBitmap (&pSite->rateMask.basicRateMask,
pFrame->parsedIEs->content.iePacket.pRates->rates,
pFrame->parsedIEs->content.iePacket.pRates->hdr[1]);
if (pFrame->parsedIEs->content.iePacket.pExtRates)
{
rate_NetStrToDrvBitmap (&bitMapExtSupp,
pFrame->parsedIEs->content.iePacket.pExtRates->rates,
pFrame->parsedIEs->content.iePacket.pExtRates->hdr[1]);
pSite->rateMask.supportedRateMask |= bitMapExtSupp;
rate_NetBasicStrToDrvBitmap (&bitMapExtSupp,
pFrame->parsedIEs->content.iePacket.pExtRates->rates,
pFrame->parsedIEs->content.iePacket.pExtRates->hdr[1]);
pSite->rateMask.basicRateMask |= bitMapExtSupp;
}
}
