void processControl(warpnetControl* controlStruct) {
unsigned char newMod, newCode;
newMod = ((controlStruct->modOrderPayload) & 0xF);
newCode = ((controlStruct->codeRatePayload) & 0xF);
pktGen_length = (controlStruct->pktGen_length);
pktGen_period = (controlStruct->pktGen_period);
txPower = ((controlStruct->txPower) & 0x3F);
warpphy_setTxPower(txPower);
chan = controlStruct->channel;
xil_printf("Ctrl struct: mod=%d, code=%d, hdr=%d, pktLen=%d, pktPeriod=%d, chan=%d\n", newMod, newCode, controlStruct->modOrderHeader, pktGen_length, pktGen_period, chan);
switch(newMod) {
case 1: pktFullRate = HDR_FULLRATE_BPSK; break;
case 2: pktFullRate = HDR_FULLRATE_QPSK; break;
case 4: pktFullRate = HDR_FULLRATE_QAM_16; break;
case 6: pktFullRate = HDR_FULLRATE_QAM_64; break;
default: pktFullRate = HDR_FULLRATE_QPSK; break;
}
switch(newCode) {
case HDR_CODE_RATE_12: pktCodeRate = HDR_CODE_RATE_12; break;
case HDR_CODE_RATE_23: pktCodeRate = HDR_CODE_RATE_23; break;
case HDR_CODE_RATE_34: pktCodeRate = HDR_CODE_RATE_34; break;
case HDR_CODE_RATE_NONE: pktCodeRate = HDR_CODE_RATE_NONE; break;
default: pktCodeRate = HDR_CODE_RATE_NONE; break;
}
switch(controlStruct->modOrderHeader) {
case 1: warpmac_setBaseRate(BPSK); break;
case 2: warpmac_setBaseRate(QPSK); break;
default: warpmac_setBaseRate(QPSK); break;
}
warpphy_setChannel(GHZ_2, chan);
}
///@brief Main function
///
///This function configures MAC parameters, enables the underlying frameworks, and then loops forever.
int main(){
//Initialize global variables
chan = 4;
//Assign the packet buffers in the PHY
// The auto responder can't transmit from buffer 0, so we use it for Rx packets
// The other assignments (DATA/ACK) are arbitrary; any buffer in [1,30] will work
pktBuf_rx = 1;
pktBuf_tx_DATA = 2;
//Set the full-rate modulation to QPSK by default
// pktFullRate = HDR_FULLRATE_QPSK;
pktFullRate = HDR_FULLRATE_QAM_16;
//Set the payload coding rate to 3/4 rate by default
pktCodeRate = HDR_CODE_RATE_34;
//Initialize the MAC/PHY frameworks
warpmac_init();
maximumReSend = 8;
warpmac_setMaxResend(maximumReSend);
warpmac_setMaxCW(5);
warpmac_setTimeout(120);
warpmac_setSlotTime(22);
//Read Dip Switch value from FPGA board.
//This value will be used as an index into the routing table for other nodes
myID = (unsigned short int)warpmac_getMyId();
warpmac_rightHex(myID);
//Configure the PHY and radios for single antenna (SISO) mode
warpphy_setAntennaMode(TX_ANTMODE_SISO_ANTA, RX_ANTMODE_SISO_ANTA);
//warpphy_setAntennaMode(TX_ANTMODE_MULTPLX, RX_ANTMODE_MULTPLX);
//warpphy_setAntennaMode(TX_ANTMODE_ALAMOUTI_ANTA, RX_ANTMODE_ALAMOUTI_ANTA);
//Set the packet detection thresholds
warpphy_setEnergyDetThresh(7000); //Min RSSI (in [0,16368])
warpphy_setAutoCorrDetParams(90, 0); //Min auto-correlation (in [0,2047])
warpphy_setLongCorrThresh(8000); //Min cross-correlation (in [0,45e3])
//Rx buffer is where the EMAC will DMA Wireless payloads from
warpmac_setRxBuffers(&rxMacframe, pktBuf_rx);
//Tx buffer is where the EMAC will DMA Ethernet payloads to
warpmac_setPHYTxBuffer(pktBuf_tx_DATA);
warpmac_setEMACRxBuffer(pktBuf_tx_DATA);
//Set the modulation scheme use for base rate (header) symbols
warpmac_setBaseRate(QPSK);
//Copy this node's MAC address into the Tx buffer's source address field
txMacframe.header.srcAddr = (unsigned short int)(NODEID_TO_ADDR(myID));
//Register callbacks
warpmac_setCallback(EVENT_TIMER, (void *)timer_callback);
warpmac_setCallback(EVENT_DATAFROMNETWORK, (void *)dataFromNetworkLayer_callback);
warpmac_setCallback(EVENT_PHYGOODHEADER, (void *)phyRx_goodHeader_callback);
warpmac_setCallback(EVENT_PHYBADHEADER, (void *)phyRx_badHeader_callback);
warpmac_setCallback(EVENT_UARTRX, (void *)uartRecv_callback);
//Set the default center frequency
warpphy_setChannel(GHZ_2, chan);
//Enable carrier sensing
warpmac_setCSMA(1);
txSeqNum = 0;
//halfmac_server doesn't send ACKs, so skip autoResponder setup
//Listen for new packets to send (either from Ethernet or local dummy packets)
warpmac_enableDataFromNetwork();
xil_printf("Reference Design v16.1 HALFMAC SERVER\r\n");
xil_printf("Beginning main loop\r\n");
while(1)
{
//Poll the timer, PHY and user I/O forever; actual processing will happen via callbacks above
warpmac_pollPeripherals();
}
return 0;
}
