/**
* \brief Disable RX & reset registers and descriptor list
* \param pDrv Pointer to GMAC Driver instance.
*/
static void GMACD_ResetRx(sGmacd *pDrv, gmacQueList_t queIdx )
{
Gmac *pHw = pDrv->pHw;
uint8_t *pRxBuffer = pDrv->queueList[queIdx].pRxBuffer;
sGmacRxDescriptor *pRd = pDrv->queueList[queIdx].pRxD;
uint32_t Index;
uint32_t Address;
/* Disable RX */
GMAC_ReceiveEnable(pHw, 0);
/* Setup the RX descriptors. */
pDrv->queueList[queIdx].wRxI = 0;
for(Index = 0; Index < pDrv->queueList[queIdx].wRxListSize; Index++) {
Address = (uint32_t)(&(pRxBuffer[Index *
pDrv->queueList[queIdx].wRxBufferSize]));
/* Remove GMAC_RXD_bmOWNERSHIP and GMAC_RXD_bmWRAP */
pRd[Index].addr.val = Address & GMAC_ADDRESS_MASK;
pRd[Index].status.val = 0;
}
pRd[pDrv->queueList[queIdx].wRxListSize - 1].addr.val |= GMAC_RX_WRAP_BIT;
/* Receive Buffer Queue Pointer Register */
GMAC_SetRxQueue(pHw, (uint32_t)pRd, queIdx);
}
static void __MacBdRcvInit(u32 qindex)
{
tagQueue *queue;
volatile tagRcvBD *rcvbd;
u32 i;
u32 address;
u32 status;
queue = &gMacDriver.queueList[qindex];
//initialize the receive bd
status = 0;
for(i =0;i < queue->rcvbdlen;i++)
{
rcvbd = queue->rcvbdtab + i;
address = (u32)(queue->rcvmem + queue->rcvbuflen*i);
rcvbd->addr.val = address&GMAC_ADDRESS_MASK;
rcvbd->status.val = status;
}
rcvbd->addr.val |= GMAC_RX_WRAP_BIT; //the last one must be wrap
queue->rcvbdcur = 0;
//set the address to the register
GMAC_SetRxQueue(gMacDriver.pHw, (u32)queue->rcvbdtab, qindex);
return;
}
