/**
* \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);
if ( drv->tCommon.eDriverState != DRV_STATE_RUNNING )
return -ENODEV;
return xmit_Bridge(skb, dev, NULL);
}
/**
* \fn wlanDrvIf_receivePacket
* \brief Receive packet from from lower level
*
*/
TI_BOOL wlanDrvIf_receivePacket(TI_HANDLE OsContext, void *pRxDesc ,void *pPacket, TI_UINT16 Length, TIntraBssBridge *pBridgeDecision)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)OsContext;
unsigned char *pdata = (unsigned char *)((TI_UINT32)pRxDesc & ~(TI_UINT32)0x3);
rx_head_t *rx_head = (rx_head_t *)(pdata - WSPI_PAD_BYTES - RX_HEAD_LEN_ALIGNED);
struct sk_buff *skb = rx_head->skb;
struct sk_buff *new_skb;
EIntraBssBridgeDecision eBridge = INTRA_BSS_BRIDGE_NO_BRIDGE;
skb->data = pPacket;
skb_put(skb, Length);
skb->dev = drv->netdev;
drv->stats.rx_packets++;
drv->stats.rx_bytes += skb->len;
/* Intra BSS bridge section */
if(pBridgeDecision != NULL)
{
eBridge = pBridgeDecision->eDecision;
}
if(INTRA_BSS_BRIDGE_NO_BRIDGE == eBridge)
{
/* Forward packet to network stack*/
CL_TRACE_START_L1();
skb->protocol = eth_type_trans(skb, drv->netdev);
skb->ip_summed = CHECKSUM_NONE;
netif_rx_ni(skb);
/* Note: Don't change this trace (needed to exclude OS processing from Rx CPU utilization) */
CL_TRACE_END_L1("tiwlan_drv.ko", "OS", "RX", "");
}
else if( INTRA_BSS_BRIDGE_UNICAST == eBridge)
{
/* Send packet to Tx */
TRACE2(drv->tCommon.hReport, REPORT_SEVERITY_WARNING, " wlanDrvIf_receivePacket() Unicast Bridge data=0x%x len=%d \n", RX_ETH_PKT_DATA(pPacket), RX_ETH_PKT_LEN(pPacket));
xmit_Bridge (skb, pDrvStaticHandle->netdev, pBridgeDecision);
}
else /* Broadcast/Multicast packet*/
{
/* Duplicate packet*/
new_skb = skb_clone(skb, GFP_ATOMIC);
skb->protocol = eth_type_trans(skb, drv->netdev);
skb->ip_summed = CHECKSUM_NONE;
netif_rx_ni(skb);
if(new_skb)
{
xmit_Bridge (new_skb, pDrvStaticHandle->netdev, pBridgeDecision);
}
else
{
printk (KERN_ERR "%s: skb_clone failed\n", __FUNCTION__);
return TI_FALSE;
}
}
return TI_TRUE;
}
/**
* \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)
{
return xmit_Bridge(skb, dev, NULL);
}
