/**
* \fn StaCap_IsHtEnable
* \brief verify if HT enable\disable at the STA according to 11n_Enable init flag and Chip type
*
* \note
* \param hStaCap - The module object
* \param b11nEnable - pointer to enable\disable flag
* \return NONE
* \sa
*/
void StaCap_IsHtEnable(TI_HANDLE hStaCap, TI_BOOL * b11nEnable)
{
TStaCap *pStaCap = (TStaCap *) hStaCap;
TTwdHtCapabilities *pTwdHtCapabilities;
paramInfo_t tParam;
tParam.paramType = SME_DESIRED_BSS_TYPE_PARAM;
sme_GetParam(pStaCap->hSme, &tParam);
/* If Infra-BSS, get actual HT capabilities from TWD */
if (tParam.content.smeDesiredBSSType == BSS_INFRASTRUCTURE) {
TWD_GetTwdHtCapabilities(pStaCap->hTWD, &pTwdHtCapabilities);
*b11nEnable = pTwdHtCapabilities->b11nEnable;
}
/* If IBSS, HT shouldn't be used */
else {
*b11nEnable = TI_FALSE;
}
}
/**
* \fn StaCap_GetHtCapabilitiesIe
* \brief Get the desired STA HT capabilities IE. get the physical HT capabilities from TWD
* and build HT capabilities IE.
*
* \note
* \param hStaCap - The module object
* \param pRequest - pointer to request buffer\n
* \param len - size of returned IE\n
* \return TI_OK on success or TI_NOK on failure
* \sa
*/
TI_STATUS StaCap_GetHtCapabilitiesIe (TI_HANDLE hStaCap, TI_UINT8 *pRequest, TI_UINT32 *pLen)
{
TStaCap *pStaCap = (TStaCap *)hStaCap;
TTwdHtCapabilities *pTwdHtCapabilities;
TI_UINT8 *pDataBuf = pRequest;
TStaCapHtCapabilities tHtCapabilities;
TI_BOOL bWmeEnable;
/* verify that WME flag enable */
qosMngr_GetWmeEnableFlag (pStaCap->hQosMngr, &bWmeEnable);
if (bWmeEnable == TI_FALSE)
{
*pLen = 0;
return TI_OK;
}
TWD_GetTwdHtCapabilities (pStaCap->hTWD, &pTwdHtCapabilities);
/* verify that 802.11n flag enable */
if (pTwdHtCapabilities->b11nEnable == TI_FALSE)
{
*pLen = 0;
return TI_OK;
}
/*
* set TWD values to HT capabilities structure
*
* Note: all numbers after "<<" represent the position of the values in the filed according
* to 11n SPEC.
*/
tHtCapabilities.uHtCapabilitiesInfo = ((pTwdHtCapabilities->uChannelWidth << 1) |
(pTwdHtCapabilities->uRxSTBC << 8) |
(pTwdHtCapabilities->uMaxAMSDU << 11)|
(DSSS_CCK_MODE << 12));
tHtCapabilities.uHtCapabilitiesInfo |= ((((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_LDPC_CODING) ? 1 : 0) << 0) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_GREENFIELD_FRAME_FORMAT) ? 1 : 0) << 4) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_SHORT_GI_FOR_20MHZ_PACKETS) ? 1 : 0) << 5) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_SHORT_GI_FOR_40MHZ_PACKETS) ? 1 : 0) << 6) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_SUPPORT_FOR_STBC_IN_TRANSMISSION) ? 1 : 0) << 7) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_DELAYED_BLOCK_ACK) ? 1 : 0) << 10) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_DSSS_CCK_IN_40_MHZ) ? 1 : 0) << 12) |
(((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_LSIG_TXOP_PROTECTION) ? 1 : 0) << 15));
tHtCapabilities.uAMpduParam = ((pTwdHtCapabilities->uMaxAMPDU << 0) |
(pTwdHtCapabilities->uAMPDUSpacing << 2));
/* copy RX supported MCS rates */
os_memoryCopy (pStaCap->hOs, tHtCapabilities.tSuppMcsSet.aRxMscBitmask, pTwdHtCapabilities->aRxMCS, RX_TX_MCS_BITMASK_SIZE);
tHtCapabilities.tSuppMcsSet.uHighestSupportedDataRate = pTwdHtCapabilities->uRxMaxDataRate;
/* check if supported MCS rates identical to TX and RX */
if( 0 == os_memoryCompare(pStaCap->hOs, pTwdHtCapabilities->aRxMCS, pTwdHtCapabilities->aTxMCS, RX_TX_MCS_BITMASK_SIZE))
{
tHtCapabilities.tSuppMcsSet.uTxRxSetting = ((TX_MCS_SET_YES << 0) | /* set supported TX MCS rate */
(TX_RX_NOT_EQUAL_NO << 1)); /* set TX&RX MCS rate are equal */
}
/* in case supported MCS rates TX different from the RX */
else
{
TI_UINT32 i;
/* check if there are TX MCS rates supported */
for (i = 0; i <= (RX_TX_MCS_BITMASK_SIZE - 1); ++i)
{
if (pTwdHtCapabilities->aTxMCS[i] != 0)
{
break;
}
}
/* TX MCS supported */
if(i <= (RX_TX_MCS_BITMASK_SIZE -1))
{
tHtCapabilities.tSuppMcsSet.uTxRxSetting = ((TX_MCS_SET_YES << 0) | /* set supported TX MCS rates */
(TX_RX_NOT_EQUAL_YES << 1)); /* set TX&RX MCS rates different */
}
/* TX MCS not supported */
else
{
tHtCapabilities.tSuppMcsSet.uTxRxSetting = (TX_MCS_SET_NO << 0); /* set no supported TX MCS rates */
}
}
tHtCapabilities.uExteCapabilities = (((pTwdHtCapabilities->uHTCapabilitiesBitMask & CAP_BIT_MASK_PCO) ? 1 : 0) << 0);
if (tHtCapabilities.uExteCapabilities != 0)
{
tHtCapabilities.uExteCapabilities |= (pTwdHtCapabilities->uPCOTransTime << 1);
}
tHtCapabilities.uExteCapabilities |= ((pTwdHtCapabilities->uMCSFeedback << 8) |
(HTC_SUPPORT_NO << 10));
tHtCapabilities.uTxBfCapabilities = ((IMPLICIT_TXBF_REC_CAPABLE << 0) |
(TRANSMIT_STAGGERED_SOUNDING_CAPABLE << 2));
tHtCapabilities.uAselCapabilities = 0x0;
/* build IE */
*pDataBuf = HT_CAPABILITIES_IE_ID;
*(pDataBuf + 1) = DOT11_HT_CAPABILITIES_ELE_LEN;
COPY_WLAN_WORD(pDataBuf + 2, &(tHtCapabilities.uHtCapabilitiesInfo));
*(pDataBuf + 4) = tHtCapabilities.uAMpduParam;
os_memoryCopy (pStaCap->hOs, pDataBuf + 5, tHtCapabilities.tSuppMcsSet.aRxMscBitmask, RX_TX_MCS_BITMASK_SIZE);
COPY_WLAN_WORD(pDataBuf + 15, &(tHtCapabilities.tSuppMcsSet.uHighestSupportedDataRate));
*(pDataBuf + 17) = tHtCapabilities.tSuppMcsSet.uTxRxSetting;
/* clear the reserved bytes */
os_memoryZero (pStaCap->hOs, (pDataBuf + 18), 3);
COPY_WLAN_WORD(pDataBuf + 21, &(tHtCapabilities.uExteCapabilities));
COPY_WLAN_LONG(pDataBuf + 23, &(tHtCapabilities.uTxBfCapabilities));
*(pDataBuf + 27) = tHtCapabilities.uAselCapabilities;
*pLen = DOT11_HT_CAPABILITIES_ELE_LEN + sizeof(dot11_eleHdr_t);
return TI_OK;
}
