// Must be in same directory as driver files. (Uses __DIR__)
// Throws if stack has no driver for the PC's hardware.

#define PCIV_PCNET      0x1022
#define PCID_PCNET      0x2000

#define PCIV_E1000      0x8086
#define PCID_82545EM    0x100F


#define PCIV_VIRTIO     0x1AF4
//#define PCID_VIRTIO_NET 0x1000

U0 NetDriverInclude(U8 *driver)
{
    U8 *filename = MStrPrint(__DIR__ "/%s", driver);

    ExeFile(filename);
    Free(filename);
}

U0 NetDriverInit()
{
    CPCIDev *net_driver_pci = PCIDevFind(PCIC_NETWORK);
    Bool     found = FALSE;

    switch (net_driver_pci->vendor_id)
    {
        case PCIV_PCNET:
            switch (net_driver_pci->device_id)
            {
                case PCID_PCNET:
                    NetDriverInclude("PCNet");
                    found = TRUE;
                    break;
            }
            break;

        case PCIV_E1000:
            switch (net_driver_pci->device_id)
            {
                case PCID_82545EM:
                    NetDriverInclude("E1000");
                    found = TRUE;
                    break;
            }
            break;

        case PCIV_VIRTIO:
            NetDriverInclude("VirtIONet");
            found = TRUE;
            break;
    }

    if (!found)
    {
        ClassRep(net_driver_pci);
        throw('NODRIVER');
    }
}

NetDriverInit;