int wlan_eth_init() {
int status;
ETH_A_NUM_RX_BD = min(queue_total_size()/2,200);
xil_printf("Setting up %d DMA BDs\n", ETH_A_NUM_RX_BD);
//The TEMAC driver is only used during init - all packet interactions are handed via the DMA driver
XAxiEthernet_Config *ETH_A_MAC_CFG_ptr;
XAxiEthernet ETH_A_MAC_Instance;
ETH_A_MAC_CFG_ptr = XAxiEthernet_LookupConfig(ETH_A_MAC_DEVICE_ID);
status = XAxiEthernet_CfgInitialize(Ð_A_MAC_Instance, ETH_A_MAC_CFG_ptr, ETH_A_MAC_CFG_ptr->BaseAddress);
if (status != XST_SUCCESS) {xil_printf("Error in XAxiEthernet_CfgInitialize! Err = %d\n", status); return -1;};
//Setup the TEMAC options
status = XAxiEthernet_ClearOptions(Ð_A_MAC_Instance, XAE_LENTYPE_ERR_OPTION | XAE_FLOW_CONTROL_OPTION | XAE_JUMBO_OPTION);
status |= XAxiEthernet_SetOptions(Ð_A_MAC_Instance, XAE_FCS_STRIP_OPTION | XAE_PROMISC_OPTION | XAE_MULTICAST_OPTION | XAE_BROADCAST_OPTION | XAE_FCS_INSERT_OPTION);
status |= XAxiEthernet_SetOptions(Ð_A_MAC_Instance, XAE_RECEIVER_ENABLE_OPTION | XAE_TRANSMITTER_ENABLE_OPTION);
if (status != XST_SUCCESS) {xil_printf("Error in XAxiEthernet_Set/ClearOptions! Err = %d\n", status); return -1;};
XAxiEthernet_SetOperatingSpeed(Ð_A_MAC_Instance, ETH_A_LINK_SPEED);
//Initialize the axi_dma attached to the TEMAC
status = wlan_eth_dma_init();
XAxiEthernet_Start(Ð_A_MAC_Instance);
return 0;
}
/**
*
* This function demonstrates the usage usage of the Axi Ethernet by sending
* and receiving frames in interrupt driven SGDMA mode.
*
*
* @param IntcInstancePtr is a pointer to the instance of the Intc
* component.
* @param AxiEthernetInstancePtr is a pointer to the instance of the
* AxiEthernet component.
* @param DmaInstancePtr is a pointer to the instance of the AXIDMA
* component.
* @param AxiEthernetDeviceId is Device ID of the Axi Ethernet Device ,
* typically XPAR_<AXIETHERNET_instance>_DEVICE_ID value from
* xparameters.h.
* @param AxiDmaDeviceId is Device ID of the Axi DMAA Device ,
* typically XPAR_<AXIDMA_instance>_DEVICE_ID value from
* xparameters.h.
* @param AxiEthernetIntrId is the Interrupt ID and is typically
* XPAR_<INTC_instance>_<AXIETHERNET_instance>_VEC_ID
* value from xparameters.h.
* @param DmaRxIntrId is the interrupt id for DMA Rx and is typically
* taken from XPAR_<AXIETHERNET_instance>_CONNECTED_DMARX_INTR
* @param DmaTxIntrId is the interrupt id for DMA Tx and is typically
* taken from XPAR_<AXIETHERNET_instance>_CONNECTED_DMATX_INTR
*
* @return -XST_SUCCESS to indicate success.
* -XST_FAILURE to indicate failure.
*
* @note AxiDma hardware must be initialized before initializing
* AxiEthernet. Since AxiDma reset line is connected to the
* AxiEthernet reset line, a reset of AxiDma hardware during its
* initialization would reset AxiEthernet.
*
******************************************************************************/
int AxiEthernetExtVlanExample(INTC *IntcInstancePtr,
XAxiEthernet *AxiEthernetInstancePtr,
XAxiDma *DmaInstancePtr,
u16 AxiEthernetDeviceId,
u16 AxiDmaDeviceId,
u16 AxiEthernetIntrId,
u16 DmaRxIntrId,
u16 DmaTxIntrId)
{
int Status;
int LoopbackSpeed;
XAxiEthernet_Config *MacCfgPtr;
XAxiDma_BdRing *RxRingPtr = XAxiDma_GetRxRing(DmaInstancePtr);
XAxiDma_BdRing *TxRingPtr = XAxiDma_GetTxRing(DmaInstancePtr);
XAxiDma_Bd BdTemplate;
XAxiDma_Config* DmaConfig;
/*************************************/
/* Setup device for first-time usage */
/*************************************/
/*
* Get the configuration of AxiEthernet hardware.
*/
MacCfgPtr = XAxiEthernet_LookupConfig(AxiEthernetDeviceId);
/*
* Check if DMA is present or not.
*/
if(MacCfgPtr->AxiDevType != XPAR_AXI_DMA) {
AxiEthernetUtilErrorTrap
("Device HW not configured for SGDMA mode\r\n");
return XST_FAILURE;
}
DmaConfig = XAxiDma_LookupConfig(AxiDmaDeviceId);
/*
* Initialize AXIDMA engine. AXIDMA engine must be initialized before
* AxiEthernet. During AXIDMA engine initialization, AXIDMA hardware is
* reset, and since AXIDMA reset line is connected to AxiEthernet, this
* would ensure a reset of AxiEthernet.
*/
Status = XAxiDma_CfgInitialize(DmaInstancePtr, DmaConfig);
if(Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error initializing DMA\r\n");
return XST_FAILURE;
}
/*
* Initialize AxiEthernet hardware.
*/
Status = XAxiEthernet_CfgInitialize(AxiEthernetInstancePtr, MacCfgPtr,
MacCfgPtr->BaseAddress);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error in initialize");
return XST_FAILURE;
}
/*
* Set the MAC address
*/
Status = XAxiEthernet_SetMacAddress(AxiEthernetInstancePtr,
AxiEthernetMAC);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error setting MAC address");
return XST_FAILURE;
}
/*
* Setup RxBD space.
*
* We have already defined a properly aligned area of memory to store
* RxBDs at the beginning of this source code file so just pass its
* address into the function. No MMU is being used so the physical and
* virtual addresses are the same.
*
* Setup a BD template for the Rx channel. This template will be copied
* to every RxBD. We will not have to explicitly set these again.
*/
/*
* Create the RxBD ring
*/
Status = XAxiDma_BdRingCreate(RxRingPtr, (u32) &RxBdSpace,
(u32) &RxBdSpace, BD_ALIGNMENT, RXBD_CNT);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error setting up RxBD space");
return XST_FAILURE;
}
XAxiDma_BdClear(&BdTemplate);
Status = XAxiDma_BdRingClone(RxRingPtr, &BdTemplate);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error initializing RxBD space");
return XST_FAILURE;
}
/*
* Setup TxBD space.
*
* Like RxBD space, we have already defined a properly aligned area of
* memory to use.
*/
/*
* Create the TxBD ring
*/
Status = XAxiDma_BdRingCreate(TxRingPtr, (u32) &TxBdSpace,
(u32) &TxBdSpace, BD_ALIGNMENT, TXBD_CNT);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error setting up TxBD space");
return XST_FAILURE;
}
/*
* We reuse the bd template, as the same one will work for both rx and
* tx.
*/
Status = XAxiDma_BdRingClone(TxRingPtr, &BdTemplate);
if (Status != XST_SUCCESS) {
AxiEthernetUtilErrorTrap("Error initializing TxBD space");
return XST_FAILURE;
}
/*
* Set PHY to loopback, speed depends on phy type.
* MII is 100 and all others are 1000.
*/
if (XAxiEthernet_GetPhysicalInterface(AxiEthernetInstancePtr)
== XAE_PHY_TYPE_MII){
LoopbackSpeed = AXIETHERNET_LOOPBACK_SPEED;
} else {
LoopbackSpeed = AXIETHERNET_LOOPBACK_SPEED_1G;
}
AxiEthernetUtilEnterLoopback(AxiEthernetInstancePtr, LoopbackSpeed);
/*
* Set PHY<-->MAC data clock
*/
Status = XAxiEthernet_SetOperatingSpeed(AxiEthernetInstancePtr,
(u16)LoopbackSpeed);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* 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.
*/
AxiEthernetUtilPhyDelay(2);
/*
* Connect to the interrupt controller and enable interrupts
*/
Status = AxiEthernetSetupIntrSystem(IntcInstancePtr,
AxiEthernetInstancePtr,
DmaInstancePtr,
AxiEthernetIntrId, DmaRxIntrId,
DmaTxIntrId);
/****************************/
/* Run the example */
/****************************/
/* Run the new VLAN feature. Make sure HW has the capability */
if (XAxiEthernet_IsTxVlanTran(AxiEthernetInstancePtr) &&
XAxiEthernet_IsTxVlanStrp(AxiEthernetInstancePtr) &&
XAxiEthernet_IsTxVlanTag(AxiEthernetInstancePtr) &&
XAxiEthernet_IsRxVlanTran(AxiEthernetInstancePtr) &&
XAxiEthernet_IsRxVlanStrp(AxiEthernetInstancePtr) &&
XAxiEthernet_IsRxVlanTag(AxiEthernetInstancePtr)) {
Status = AxiEthernetSgDmaIntrExtVlanExample
(AxiEthernetInstancePtr,DmaInstancePtr);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
}
/*
* Disable the interrupts for the AxiEthernet device
*/
AxiEthernetDisableIntrSystem(IntcInstancePtr, AxiEthernetIntrId,
DmaRxIntrId, DmaTxIntrId);
/*
* Stop the device
*/
XAxiEthernet_Stop(AxiEthernetInstancePtr);
return XST_SUCCESS;
}
