XStatus
init_ll_fifo(struct xemac_s *xemac)
{
xlltemacif_s *xlltemacif = (xlltemacif_s *)(xemac->state);
#if NO_SYS
struct xtopology_t *xtopologyp = &xtopology[xemac->topology_index];
#endif
/* initialize ll fifo */
XLlFifo_Initialize(&xlltemacif->llfifo,
XLlTemac_LlDevBaseAddress(&xlltemacif->lltemac));
/* Clear any pending FIFO interrupts */
XLlFifo_IntClear(&xlltemacif->llfifo, XLLF_INT_ALL_MASK);
/* enable fifo interrupts */
XLlFifo_IntEnable(&xlltemacif->llfifo, XLLF_INT_ALL_MASK);
#if NO_SYS
/* Register temac interrupt with interrupt controller */
XIntc_RegisterHandler(xtopologyp->intc_baseaddr,
xlltemacif->lltemac.Config.TemacIntr,
(XInterruptHandler)xlltemac_error_handler,
&xlltemacif->lltemac);
/* connect & enable FIFO interrupt */
XIntc_RegisterHandler(xtopologyp->intc_baseaddr,
xlltemacif->lltemac.Config.LLFifoIntr,
(XInterruptHandler)xllfifo_intr_handler,
xemac);
/* Enable EMAC interrupts in the interrupt controller */
do {
/* read current interrupt enable mask */
unsigned int cur_mask = XIntc_In32(xtopologyp->intc_baseaddr + XIN_IER_OFFSET);
/* form new mask enabling SDMA & ll_temac interrupts */
cur_mask = cur_mask
| (1 << xlltemacif->lltemac.Config.LLFifoIntr)
| (1 << xlltemacif->lltemac.Config.TemacIntr);
/* set new mask */
XIntc_mEnableIntr(xtopologyp->intc_baseaddr, cur_mask);
} while (0);
#else
/* connect & enable TEMAC interrupts */
register_int_handler(xlltemacif->lltemac.Config.TemacIntr,
(XInterruptHandler)xlltemac_error_handler,
&xlltemacif->lltemac);
enable_interrupt(xlltemacif->lltemac.Config.TemacIntr);
/* connect & enable FIFO interrupts */
register_int_handler(xlltemacif->lltemac.Config.LLFifoIntr,
(XInterruptHandler)xllfifo_intr_handler,
xemac);
enable_interrupt(xlltemacif->lltemac.Config.LLFifoIntr);
#endif
return 0;
}
/**
*
* This function demonstrates the usage of the TEMAC by sending and receiving
* frames in polled mode.
*
*
* @param TemacDeviceId is device ID of the Temac Device , typically
* XPAR_<TEMAC_instance>_DEVICE_ID value from xparameters.h
*
* @return XST_SUCCESS to indicate success, otherwise XST_FAILURE
*
* @note None.
*
******************************************************************************/
int TemacPolledExample(u16 TemacDeviceId, u16 FifoDeviceId)
{
int Status;
XLlTemac_Config *MacCfgPtr;
u32 Rdy;
int LoopbackSpeed;
/*************************************/
/* Setup device for first-time usage */
/*************************************/
/*
* Initialize the FIFO and TEMAC instance
*/
MacCfgPtr = XLlTemac_LookupConfig(TemacDeviceId);
Status = XLlTemac_CfgInitialize(&TemacInstance, MacCfgPtr,
MacCfgPtr->BaseAddress);
if (Status != XST_SUCCESS) {
TemacUtilErrorTrap("Error in initialize");
return XST_FAILURE;
}
XLlFifo_Initialize(&FifoInstance,
XLlTemac_LlDevBaseAddress(&TemacInstance));
/*
* Check whether the IPIF interface is correct for this example
*/
if (!XLlTemac_IsFifo(&TemacInstance)) {
TemacUtilErrorTrap
("Device HW not configured for FIFO direct mode\r\n");
return XST_FAILURE;
}
/*
* Set the MAC address
*/
Status = XLlTemac_SetMacAddress(&TemacInstance, (u8 *) TemacMAC);
if (Status != XST_SUCCESS) {
TemacUtilErrorTrap("Error setting MAC address");
return XST_FAILURE;
}
/* Make sure the hard temac is ready */
Rdy = XLlTemac_ReadReg(TemacInstance.Config.BaseAddress,
XTE_RDY_OFFSET);
while ((Rdy & XTE_RDY_HARD_ACS_RDY_MASK) == 0) {
Rdy = XLlTemac_ReadReg(TemacInstance.Config.BaseAddress,
XTE_RDY_OFFSET);
}
/*
* Set PHY to loopback, speed depends on phy type.
* MII is 100 and all others are 1000.
*/
if (XLlTemac_GetPhysicalInterface(&TemacInstance) == XTE_PHY_TYPE_MII)
{
LoopbackSpeed = TEMAC_LOOPBACK_SPEED;
} else {
LoopbackSpeed = TEMAC_LOOPBACK_SPEED_1G;
}
Status = TemacUtilEnterLoopback(&TemacInstance, LoopbackSpeed);
if (Status != XST_SUCCESS) {
TemacUtilErrorTrap("Error setting the PHY loopback");
return XST_FAILURE;
}
/*
* Set PHY<-->MAC data clock
*/
XLlTemac_SetOperatingSpeed(&TemacInstance, (u16)LoopbackSpeed);
/*
* Setting the operating speed of the MAC needs a delay. There
* doesn't seem to be register to poll, so please consider this
* during your application design.
*/
TemacUtilPhyDelay(2);
/****************************/
/* Run through the examples */
/****************************/
/*
* Run the Single Frame polled example
*/
Status = TemacSingleFramePolledExample();
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Run the Multiple Frames polled example
*/
Status = TemacMultipleFramesPolledExample();
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
return XST_SUCCESS;
}
