void sendDataPacket (TI_HANDLE hOs)
{
TI_UINT32 i;
TTxCtrlBlk * pPktCtrlBlk;
TI_UINT8 * pPktBuf;
TEthernetHeader tEthHeader;
char SrcBssid[6] = {0x88,0x88,0x88,0x88,0x88,0x88};
char DesBssid[6] = {0x22,0x22,0x22,0x22,0x22,0x22};
/* Allocate a TxCtrlBlk for the Tx packet and save timestamp, length and packet handle */
pPktCtrlBlk = TWD_txCtrlBlk_Alloc (tmp_hTWD);
if( NULL == pPktCtrlBlk )
{
os_printf("\n sendDataPacket() : pPktCtrlBlk returned as NULL from TWD_txCtrlBlk_Alloc() ");
return;
}
pPktCtrlBlk->tTxDescriptor.startTime = os_timeStampMs (hOs);
pPktCtrlBlk->tTxDescriptor.length = (TI_UINT16)packetLength + ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxDescriptor.tid = 0;
pPktCtrlBlk->tTxPktParams.uPktType = TX_PKT_TYPE_ETHER;
/* Allocate buffer with headroom for getting the IP header in a 4-byte aligned address */
pPktBuf = txCtrl_AllocPacketBuffer (tmp_hTxCtrl, pPktCtrlBlk, packetLength + ETHERNET_HDR_LEN + 2);
/* Prepare Ethernet header */
tEthHeader.type = HTOWLANS(ETHERTYPE_IP);
MAC_COPY (tEthHeader.src, SrcBssid);
MAC_COPY (tEthHeader.dst, DesBssid);
if( pPktBuf )
{
os_memoryCopy (hOs, pPktBuf + 2, &tEthHeader, ETHERNET_HDR_LEN);
/* Build BDL */
BUILD_TX_TWO_BUF_PKT_BDL (pPktCtrlBlk,
pPktBuf + 2,
ETHERNET_HDR_LEN,
pPktBuf + 2 + ETHERNET_HDR_LEN,
packetLength)
/* Fill data buffer with incremented numbers */
for (i = 0; i < packetLength; i++)
{
*(pPktBuf + 2 + ETHERNET_HDR_LEN + i) = i;
}
}
else
{
/****************************************************************************************
* dummyPktReqCB *
****************************************************************************************
DESCRIPTION: Callback for the TWD_OWN_EVENT_DUMMY_PKT_REQ event - transmits a dummy
packet
INPUT: - hTxMgmtQ - Handle to the TxMgmtQ module
- str - Buffer containing the event data
- strLen - Event data length
OUTPUT:
RETURN: void.\n
****************************************************************************************/
void dummyPktReqCB(TI_HANDLE hTxMgmtQ, char* str , TI_UINT32 strLen)
{
TTxMgmtQ *pTxMgmtQ = (TTxMgmtQ*)hTxMgmtQ;
TTxCtrlBlk* pTxCtrlBlk;
void* pPayload;
const TI_UINT16 uDummyPktBufLen = 1400;
TI_STATUS status;
/* Allocate control block for dummy packet */
pTxCtrlBlk = TWD_txCtrlBlk_Alloc(pTxMgmtQ->hTWD);
if (NULL == pTxCtrlBlk) {
TRACE0(pTxMgmtQ->hReport, REPORT_SEVERITY_ERROR, "dummyPktReqCB: TxCtrlBlk allocation failed!\n");
return;
}
/* Allocate payload buffer */
pPayload = txCtrl_AllocPacketBuffer(pTxMgmtQ->hTxCtrl, pTxCtrlBlk, WLAN_HDR_LEN + uDummyPktBufLen);
if (NULL == pPayload)
{
TRACE0(pTxMgmtQ->hReport, REPORT_SEVERITY_ERROR, "dummyPktReqCB: Packet buffer allocation failed!\n");
TWD_txCtrlBlk_Free (pTxMgmtQ->hTWD, pTxCtrlBlk);
return;
}
/* Set packet parameters */
{
pTxCtrlBlk->tTxDescriptor.startTime = os_timeStampMs(pTxMgmtQ->hOs);
/* Mark as a Dummy Blocks Packet */
pTxCtrlBlk->tTxPktParams.uPktType = TX_PKT_TYPE_DUMMY_BLKS;
BUILD_TX_TWO_BUF_PKT_BDL (pTxCtrlBlk, pTxCtrlBlk->aPktHdr, WLAN_HDR_LEN, pPayload, uDummyPktBufLen);
}
pTxMgmtQ->tDbgCounters.uDummyPackets++;
/* Enqueue packet in the management-queues and run the scheduler. */
status = txMgmtQ_Xmit(pTxMgmtQ, pTxCtrlBlk, TI_FALSE);
if (TI_NOK == status)
{
TRACE0(pTxMgmtQ->hReport, REPORT_SEVERITY_ERROR, "dummyPktReqCB: xmit failed!\n");
}
}
/**
* \fn wlanDrvIf_Xmit
* \brief Packets transmission
*
* The network stack calls this function in order to transmit a packet
* through the WLAN interface.
* The packet is inserted to the drver Tx queues and its handling is continued
* after switching to the driver context.
*
* \note
* \param skb - The Linux packet buffer structure
* \param dev - The driver network-interface handle
* \return 0 (= OK)
* \sa
*/
static int wlanDrvIf_Xmit (struct sk_buff *skb, struct net_device *dev)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)NETDEV_GET_PRIVATE(dev);
TTxCtrlBlk * pPktCtrlBlk;
int status;
CL_TRACE_START_L1();
os_profile (drv, 0, 0);
drv->stats.tx_packets++;
drv->stats.tx_bytes += skb->len;
/* Allocate a TxCtrlBlk for the Tx packet and save timestamp, length and packet handle */
pPktCtrlBlk = TWD_txCtrlBlk_Alloc (drv->tCommon.hTWD);
pPktCtrlBlk->tTxDescriptor.startTime = os_timeStampMs(drv); /* remove use of skb->tstamp.off_usec */
pPktCtrlBlk->tTxDescriptor.length = skb->len;
pPktCtrlBlk->tTxPktParams.pInputPkt = skb;
/* Point the first BDL buffer to the Ethernet header, and the second buffer to the rest of the packet */
pPktCtrlBlk->tTxnStruct.aBuf[0] = skb->data;
pPktCtrlBlk->tTxnStruct.aLen[0] = ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aBuf[1] = skb->data + ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[1] = (TI_UINT16)skb->len - ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[2] = 0;
/* Send the packet to the driver for transmission. */
status = txDataQ_InsertPacket (drv->tCommon.hTxDataQ, pPktCtrlBlk,(TI_UINT8)skb->priority);
/* If failed (queue full or driver not running), drop the packet. */
if (status != TI_OK)
{
drv->stats.tx_errors++;
}
os_profile (drv, 1, 0);
CL_TRACE_END_L1("tiwlan_drv.ko", "OS", "TX", "");
return 0;
}
TI_STATUS mlmeBuilder_sendFrame(TI_HANDLE hMlme,
dot11MgmtSubType_e type,
TI_UINT8 *pDataBuff,
TI_UINT32 dataLen,
TI_UINT8 setWepOpt)
{
mlme_t *pHandle = (mlme_t*)hMlme;
TI_STATUS status;
TTxCtrlBlk *pPktCtrlBlk;
TI_UINT8 *pPktBuffer;
TMacAddr daBssid, saBssid;
dot11_mgmtHeader_t *pDot11Header;
/* Allocate a TxCtrlBlk and data buffer (large enough for the max management packet) */
pPktCtrlBlk = TWD_txCtrlBlk_Alloc (pHandle->hTWD);
if (pPktCtrlBlk == NULL)
return TI_NOK;
pPktBuffer = txCtrl_AllocPacketBuffer (pHandle->hTxCtrl,
pPktCtrlBlk,
MAX_MANAGEMENT_FRAME_BODY_LEN + WLAN_HDR_LEN);
if (pPktBuffer == NULL)
{
TRACE0(pHandle->hReport, REPORT_SEVERITY_ERROR , ": No memory\n");
TWD_txCtrlBlk_Free (pHandle->hTWD, pPktCtrlBlk);
return TI_NOK;
}
pDot11Header = (dot11_mgmtHeader_t *)(pPktCtrlBlk->aPktHdr);
status = mlmeBuilder_buildFrameCtrl (pHandle, type, (TI_UINT16 *)&pDot11Header->fc, setWepOpt);
if (status != TI_OK)
{
txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK);
return TI_NOK;
}
status = ctrlData_getParamBssid(pHandle->hCtrlData, CTRL_DATA_CURRENT_BSSID_PARAM, daBssid);
if (status != TI_OK)
{
txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK);
return TI_NOK;
}
/* copy destination mac address */
MAC_COPY (pDot11Header->DA, daBssid);
status = ctrlData_getParamMacAddr(pHandle->hCtrlData, saBssid);
if (status != TI_OK)
{
txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK);
return TI_NOK;
}
/* copy source mac address */
MAC_COPY (pDot11Header->SA, saBssid);
/* copy BSSID (destination mac address) */
MAC_COPY (pDot11Header->BSSID, daBssid);
if (pDataBuff != NULL)
{
os_memoryCopy (pHandle->hOs, pPktBuffer, pDataBuff, dataLen);
}
/* Update packet parameters (start-time, length, pkt-type) */
pPktCtrlBlk->tTxDescriptor.startTime = os_timeStampMs (pHandle->hOs);
pPktCtrlBlk->tTxPktParams.uPktType = TX_PKT_TYPE_MGMT;
BUILD_TX_TWO_BUF_PKT_BDL (pPktCtrlBlk, (TI_UINT8 *)pDot11Header, WLAN_HDR_LEN, pPktBuffer, dataLen)
/* Enqueue packet in the mgmt-queues and run the scheduler. */
status = txMgmtQ_Xmit (pHandle->hTxMgmtQ, pPktCtrlBlk, TI_FALSE);
return status;
}
static int xmit_Bridge (struct sk_buff *skb, struct net_device *dev, TIntraBssBridge *pBssBridgeParam)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)NETDEV_GET_PRIVATE(dev);
TTxCtrlBlk * pPktCtrlBlk;
TEthernetHeader *pEthHead = (TEthernetHeader *)(skb->data);
int status;
CL_TRACE_START_L1();
os_profile (drv, 0, 0);
drv->stats.tx_packets++;
drv->stats.tx_bytes += skb->len;
/* Allocate a TxCtrlBlk for the Tx packet and save timestamp, length and packet handle */
pPktCtrlBlk = TWD_txCtrlBlk_Alloc (drv->tCommon.hTWD);
if (pPktCtrlBlk == NULL)
{
drv->stats.tx_errors++;
os_profile (drv, 1, 0);
CL_TRACE_END_L1("tiwlan_drv.ko", "OS", "TX", "");
return 0;
}
/* Set interface type according to net device interface number */
if (drv->tCommon.eIfRole == IF_ROLE_TYPE_AP)
SET_PKT_TYPE_IF_ROLE_AP(pPktCtrlBlk);
else
SET_PKT_TYPE_IF_ROLE_STA(pPktCtrlBlk);
pPktCtrlBlk->tTxDescriptor.startTime = os_timeStampMs(drv); /* remove use of skb->tstamp.off_usec */
pPktCtrlBlk->tTxDescriptor.length = skb->len;
pPktCtrlBlk->tTxPktParams.pInputPkt = skb;
/* Check MGMT packet from hostapd, forward it to the Mgmt-Queue and exit without ethernet header */
if (HTOWLANS(pEthHead->type) == AP_MGMT_ETH_TYPE)
{
/* Copy WLAN header into aPktHdr - format for MGMT packets */
memcpy (pPktCtrlBlk->aPktHdr, skb->data + ETHERNET_HDR_LEN , WLAN_HDR_LEN );
/* Skip ethernet header, send as management frame */
pPktCtrlBlk->tTxPktParams.uPktType = TX_PKT_TYPE_MGMT;
pPktCtrlBlk->tTxnStruct.aBuf[0] = (TI_UINT8 *)pPktCtrlBlk->aPktHdr;
pPktCtrlBlk->tTxnStruct.aLen[0] = WLAN_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aBuf[1] = skb->data + ETHERNET_HDR_LEN + WLAN_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[1] = (TI_UINT16)skb->len - ETHERNET_HDR_LEN - WLAN_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[2] = 0;
pPktCtrlBlk->tTxPktParams.uInputPktLen = skb->len;
pPktCtrlBlk->tTxDescriptor.length = (TI_UINT16)((pPktCtrlBlk->tTxnStruct.aLen[0]) + (pPktCtrlBlk->tTxnStruct.aLen[1]));
status = txMgmtQ_Xmit (drv->tCommon.hTxMgmtQ, pPktCtrlBlk, TI_TRUE);
}
else
{
/* Point the first BDL buffer to the Ethernet header, and the second buffer to the rest of the packet */
pPktCtrlBlk->tTxnStruct.aBuf[0] = skb->data;
pPktCtrlBlk->tTxnStruct.aLen[0] = ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aBuf[1] = skb->data + ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[1] = (TI_UINT16)skb->len - ETHERNET_HDR_LEN;
pPktCtrlBlk->tTxnStruct.aLen[2] = 0;
/* Send the packet to the driver for transmission. */
status = txDataQ_InsertPacket (drv->tCommon.hTxDataQ, pPktCtrlBlk,(TI_UINT8)skb->priority, pBssBridgeParam);
}
/* If failed (queue full or driver not running), drop the packet. */
if (status != TI_OK)
{
drv->stats.tx_errors++;
}
os_profile (drv, 1, 0);
CL_TRACE_END_L1("tiwlan_drv.ko", "OS", "TX", "");
return 0;
}