USMAP.c

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#include "main.h"
#include "802_22.h"
typedef struct stru_ExtentedUSMAPIE
{
    USMAP_IE* pstruUSMAPIE;
    struct stru_ExtentedUSMAPIE* pstruNext;
}ExtendedUSIE;
/** The US-MAP message defines the access to the upstream channel using US-MAP IEs */
NetSim_PACKET* fn_NetSim_CR_FormUSMAP(NETSIM_ID nDeviceId, NETSIM_ID nInterfaceId)
{
    int nIECount = 0;
    int nLoop,nLoop1;
    USMAP_IE* pstruUSIE[MAX_SID];
    BS_MAC* pstruBSMAC = (BS_MAC*)DEVICE_MACVAR(nDeviceId,nInterfaceId);
    BS_PHY* pstruBSPHY = (BS_PHY*)DEVICE_PHYVAR(nDeviceId,nInterfaceId);
    UPLINKALLOCINFO* pstruInfo = pstruBSMAC->uplinkAllocInfo;
    memset(pstruUSIE,0,sizeof(USMAP_IE*)*MAX_SID);
    pstruBSMAC->pstruUSMAP = fnpAllocateMemory(1,sizeof(USMAP));
    pstruBSMAC->pstruUSMAP->nManagementMessageType = MMM_US_MAP;
    pstruBSMAC->pstruUSMAP->nAllocationStartTime = pstruBSPHY->pstruSymbolParameter->nUPlinkFrameStartSymbol;
    fn_NetSim_CR_UpdateInfo(pstruBSMAC,pstruBSPHY);
    //Prepare US-MAP IE for BW-request
    pstruUSIE[0] = fnpAllocateMemory(1,sizeof *pstruUSIE[0]);
    pstruUSIE[0]->nSID = 0;//Broadcast
    pstruUSIE[0]->nUIUC = 3;
    pstruUSIE[0]->UIUC_2_3.nSubChannelCount = 6;
    nIECount++;
    //Loop through allocation info
    while(pstruInfo)
    {
        if(pstruUSIE[pstruInfo->nSID] == NULL)
        {
            nIECount++;
            pstruUSIE[pstruInfo->nSID] = fnpAllocateMemory(1,sizeof *pstruUSIE[pstruInfo->nSID]);
        }
        pstruUSIE[pstruInfo->nSID]->nSID = pstruInfo->nSID;
        pstruUSIE[pstruInfo->nSID]->nUIUC = pstruBSMAC->nUIUC;
        pstruUSIE[pstruInfo->nSID]->UIUC.nDuration += pstruInfo->nSlotAllocated;
        pstruInfo = pstruInfo->next;
    }
    pstruBSMAC->pstruUSMAP->nIECount = nIECount;
    pstruBSMAC->pstruUSMAP->pstruUSMAPIE = fnpAllocateMemory(nIECount,sizeof(USMAP_IE*));
    nLoop1 = 0;
    for(nLoop=0;nLoop<MAX_SID && nIECount;nLoop++)
    {
        if(pstruUSIE[nLoop])
        {
            nIECount--;
            pstruBSMAC->pstruUSMAP->pstruUSMAPIE[nLoop1++] = pstruUSIE[nLoop];
        }
    }
    return fn_NetSim_CR_GenerateBroadcastCtrlPacket(nDeviceId,nInterfaceId,MMM_US_MAP);
}
/** The US-MAP message defines the access to the upstream channel using US-MAP IEs */
int fn_NetSim_CR_CPE_ProcessUSMAP()
{
    int nSlot=0;
    unsigned int nLoop;
    USMAP* pstruUSMAP;
    double dTime;
    NETSIM_ID nDeviceId = pstruEventDetails->nDeviceId;
    NETSIM_ID nInterfaceId = pstruEventDetails->nInterfaceId;
    CPE_MAC* pstruCPEMAC = DEVICE_MACVAR(pstruEventDetails->nDeviceId,pstruEventDetails->nInterfaceId);
    CPE_PHY* pstruCPEPhy = DEVICE_PHYVAR(nDeviceId,nInterfaceId);
    SYMBOL_PARAMETER* pstruSymbol = pstruCPEPhy->pstruSymbol;
    BS_MAC* pstruBSMac = DEVICE_MACVAR(pstruCPEMAC->nBSID,pstruCPEMAC->nBSInterface);
    BS_PHY* pstruBSPhy = DEVICE_PHYVAR(pstruCPEMAC->nBSID,pstruCPEMAC->nBSInterface);
    pstruUSMAP = pstruEventDetails->pPacket->pstruMacData->Packet_MACProtocol;
    dTime = pstruUSMAP->nAllocationStartTime*pstruSymbol->dSymbolDuration+pstruBSPhy->dTTG;
    dTime += pstruBSMac->dFrameStartTime;
    nSlot = pstruSymbol->nOFDMSlots-pstruUSMAP->pstruUSMAPIE[0]->UIUC_2_3.nSubChannelCount;
    //Update the allocated byted
    for(nLoop=0;nLoop<pstruUSMAP->nIECount;nLoop++)
    {
        if(pstruUSMAP->pstruUSMAPIE[nLoop]->nSID == pstruCPEMAC->nSID)
        {
            if(pstruUSMAP->pstruUSMAPIE[nLoop]->nUIUC >= 13 && pstruUSMAP->pstruUSMAPIE[nLoop]->nUIUC <= 61)
            {
                pstruCPEMAC->BWRequestInfo->dBytesAllocated = pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC.nDuration*pstruSymbol->nBitsCountInOneSlot/8.0;
                pstruCPEMAC->BWRequestInfo->dStartTime = dTime + nSlot*pstruSymbol->dSymbolDuration/pstruSymbol->nOFDMSlots;
            }
        }
        else
        {
            switch(pstruUSMAP->pstruUSMAPIE[nLoop]->nUIUC)
            {
            case 0:
            case 1:
                break;
            case 2:
            case 3:
                nSlot += pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC_2_3.nSubChannelCount;
                break;
            case 4:
            case 5:
            case 6:
                nSlot += pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC_4_6.nSubChannelCount;
                nSlot += pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC_4_6.nSubSymbolsCount*pstruSymbol->nOFDMSlots;
                break;
            case 8:
                nSlot += pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC_8.nSubChannelCount;
                break;
            case 7:
            case 9:
            case 62:
                break;
            default:
                nSlot += pstruUSMAP->pstruUSMAPIE[nLoop]->UIUC.nDuration;
                break;
            }
        }
    }
    //Create an event to form US-Burst
    pstruEventDetails->dEventTime = dTime;
    pstruEventDetails->dPacketSize = 0;
    pstruEventDetails->nApplicationId = 0;
    pstruEventDetails->nEventType = TIMER_EVENT;
    pstruEventDetails->nPacketId = 0;
    pstruEventDetails->nSubEventType = FORM_US_BURST;
    pstruEventDetails->pPacket = NULL;
    fnpAddEvent(pstruEventDetails);
    return 0;
}