Function packetHandler

arm9/source/nifi.cpp:27–85

}

void packetHandler(int packetID, int readlength)
{
    static char data[4096];
    // static int bytesRead = 0; // Not used

    // Wifi_RxRawReadPacket:  Allows user code to read a packet from within the WifiPacketHandler function
    //  long packetID:		a non-unique identifier which locates the packet specified in the internal buffer
    //  long readlength:		number of bytes to read (actually reads (number+1)&~1 bytes)
    //  unsigned short * data:	location for the data to be read into
    
	// bytesRead = Wifi_RxRawReadPacket(packetID, readlength, (unsigned short *)data); // Not used
	Wifi_RxRawReadPacket(packetID, readlength, (unsigned short *)data);
	
    // Check this is the right kind of packet
    if (data[32] == 'Y' && data[33] == 'O') {
        u8 command = data[34];
        u8 val = data[35];
        int sendid = *((int*)(data+36));

        if (lastSendid == sendid) {
            if (!(ioRam[0x02] & 0x01)) {
                nifiSendid--;
                sendPacketByte(56, linkSendData);
                nifiSendid++;
            }
            return;
        }
        lastSendid = sendid;

        if (command == 55 || command == 56) {
            //printLog("%d: Received %x\n", ioRam[0x02]&1, val);
            linkReceivedData = val;
        }

        //linkReceivedData = 0;
        switch(command) {
            // Command sent from "internal clock"
            case 55:
                if (ioRam[0x02] & 0x80) {
                    // Falls through to case 56
                }
                else {
                    printLog("Not ready!\n");
                    transferWaiting = true;
                    timerStart(2, ClockDivider_64, 10000, transferWaitingTimeoutFunc);
                    break;
                }
                // Internal clock receives a response from external clock
            case 56:
                transferReady = true;
                cyclesToExecute = -1;
                nifiSendid++;
                break;
            default:
                //printLog("Unknown packet\n");
                break;
        }
    }