/*---------------------------------------------------------------------------
wpalPacketGetLength – Get number of bytes in a wpt_packet. It include the
bytes in a BD if it exist.
Param:
pPkt - pointer to a packet to be freed.
Return:
Length of the data include layer-2 headers. For example, if the frame
is 802.3, the length includes the ethernet header.
---------------------------------------------------------------------------*/
wpt_uint32 wpalPacketGetLength(wpt_packet *pPkt)
{
v_U16_t len = 0, pktLen = 0;
// Validate the parameter pointers
if (unlikely(NULL == pPkt))
{
WPAL_TRACE(eWLAN_MODULE_PAL, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s : NULL packet pointer", __func__);
return eWLAN_PAL_STATUS_E_INVAL;
}
if( WPAL_PACKET_GET_BD_POINTER(pPkt) )
{
len = WPAL_PACKET_GET_BD_LENGTH(pPkt);
}
if( VOS_IS_STATUS_SUCCESS(vos_pkt_get_packet_length(WPAL_TO_VOS_PKT(pPkt), &pktLen)) )
{
len += pktLen;
}
else
{
WPAL_TRACE(eWLAN_MODULE_PAL, eWLAN_PAL_TRACE_LEVEL_ERROR, "%s failed",
__func__);
}
return ((wpt_uint32)len);
}/*wpalPacketGetLength*/
void
WDI_DS_PrepareBDHeader (wpt_packet* palPacket,
wpt_uint8 ucDisableHWFrmXtl, wpt_uint8 alignment)
{
void* pvBDHeader;
wpt_uint8 ucHeaderOffset;
wpt_uint8 ucHeaderLen;
wpt_uint8 ucQosEnabled;
wpt_uint8 ucWDSEnabled;
wpt_uint32 ucMpduLen;
wpt_uint32 ucPktLen;
WDI_DS_TxMetaInfoType *pTxMetadata;
pvBDHeader = WPAL_PACKET_GET_BD_POINTER(palPacket);
pTxMetadata = WDI_DS_ExtractTxMetaData(palPacket);
ucQosEnabled = pTxMetadata->qosEnabled;
ucWDSEnabled = pTxMetadata->fenableWDS;
WPAL_PACKET_SET_BD_LENGTH(palPacket, WDI_TX_BD_HEADER_SIZE);
if ( ucDisableHWFrmXtl ) {
ucHeaderOffset = WDI_TX_BD_HEADER_SIZE;
ucHeaderLen = WDI_802_11_HEADER_LEN;
if ( 0 != ucQosEnabled ) {
ucHeaderLen += WDI_802_11_HEADER_QOS_CTL;
}
if ( 0 != ucWDSEnabled) {
ucHeaderLen += WDI_802_11_HEADER_ADDR4_LEN;
}
} else {
ucHeaderOffset = WDI_TX_BD_HEADER_SIZE+WDI_802_11_MAX_HEADER_LEN;
ucHeaderLen = WDI_802_3_HEADER_LEN;
}
WDI_TX_BD_SET_MPDU_HEADER_LEN( pvBDHeader, ucHeaderLen);
WDI_TX_BD_SET_MPDU_HEADER_OFFSET( pvBDHeader, ucHeaderOffset);
WDI_TX_BD_SET_MPDU_DATA_OFFSET( pvBDHeader,
ucHeaderOffset + ucHeaderLen + alignment);
ucPktLen = wpalPacketGetLength( palPacket );
ucMpduLen = ucPktLen - WPAL_PACKET_GET_BD_LENGTH( palPacket );
WDI_TX_BD_SET_MPDU_LEN( pvBDHeader, ucMpduLen );
DTI_TRACE( DTI_TRACE_LEVEL_INFO,
"WLAN DTI: VALUES ARE HLen=%x Hoff=%x doff=%x len=%x ex=%d",
ucHeaderLen, ucHeaderOffset,
(ucHeaderOffset + ucHeaderLen + alignment),
pTxMetadata->fPktlen, alignment);
}
/*==========================================================================
*
FUNCTION WDI_DS_PrepareBDHeader
DESCRIPTION
function for preparing BD header before HAL processing.
PARAMETERS
IN
palPacket: PAL packet pointer
RETURN VALUE
No return.
SIDE EFFECTS
============================================================================*/
void
WDI_DS_PrepareBDHeader (wpt_packet* palPacket,
wpt_uint8 ucDisableHWFrmXtl, wpt_uint8 alignment)
{
void* pvBDHeader;
wpt_uint8 ucHeaderOffset;
wpt_uint8 ucHeaderLen;
wpt_uint8 ucQosEnabled;
wpt_uint8 ucWDSEnabled;
wpt_uint32 ucMpduLen;
wpt_uint32 ucPktLen;
WDI_DS_TxMetaInfoType *pTxMetadata;
/* Extract reuqired information from Metadata */
pvBDHeader = WPAL_PACKET_GET_BD_POINTER(palPacket);
pTxMetadata = WDI_DS_ExtractTxMetaData(palPacket);
ucQosEnabled = pTxMetadata->qosEnabled;
ucWDSEnabled = pTxMetadata->fenableWDS;
WPAL_PACKET_SET_BD_LENGTH(palPacket, WDI_TX_BD_HEADER_SIZE);
/*---------------------------------------------------------------------
Fill MPDU info fields:
- MPDU data start offset
- MPDU header start offset
- MPDU header length
- MPDU length - this is a 16b field - needs swapping
--------------------------------------------------------------------*/
if ( ucDisableHWFrmXtl ) {
ucHeaderOffset = WDI_TX_BD_HEADER_SIZE;
ucHeaderLen = WDI_802_11_HEADER_LEN;
if ( 0 != ucQosEnabled ) {
ucHeaderLen += WDI_802_11_HEADER_QOS_CTL;
}
if ( 0 != ucWDSEnabled) {
ucHeaderLen += WDI_802_11_HEADER_ADDR4_LEN;
}
} else {
ucHeaderOffset = WDI_TX_BD_HEADER_SIZE+WDI_802_11_MAX_HEADER_LEN;
ucHeaderLen = WDI_802_3_HEADER_LEN;
}
WDI_TX_BD_SET_MPDU_HEADER_LEN( pvBDHeader, ucHeaderLen);
WDI_TX_BD_SET_MPDU_HEADER_OFFSET( pvBDHeader, ucHeaderOffset);
WDI_TX_BD_SET_MPDU_DATA_OFFSET( pvBDHeader,
ucHeaderOffset + ucHeaderLen + alignment);
// pkt length from PAL API. Need to change in case of HW FT used
ucPktLen = wpalPacketGetLength( palPacket ); // This includes BD length
/** This is the length (in number of bytes) of the entire MPDU
(header and data). Note that the length INCLUDES FCS field. */
ucMpduLen = ucPktLen - WPAL_PACKET_GET_BD_LENGTH( palPacket );
WDI_TX_BD_SET_MPDU_LEN( pvBDHeader, ucMpduLen );
DTI_TRACE( DTI_TRACE_LEVEL_INFO,
"WLAN DTI: VALUES ARE HLen=%x Hoff=%x doff=%x len=%x ex=%d",
ucHeaderLen, ucHeaderOffset,
(ucHeaderOffset + ucHeaderLen + alignment),
pTxMetadata->fPktlen, alignment);
}/* WDI_DS_PrepareBDHeader */
