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Make network driver registration dynamic.

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GutPuncher 2023-03-15 02:30:04 -04:00
parent 3c9f005c48
commit 87c6e59179
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GPG key ID: 38CE0A7B6841D1C7
2 changed files with 48 additions and 21 deletions
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65
src/Home/Net/Drivers/Run.ZC
View file

@ -7,9 +7,8 @@
#define PCIV_E1000 0x8086
#define PCID_82545EM 0x100F
#define PCIV_VIRTIO 0x1AF4
//#define PCID_VIRTIO_NET 0x1000
#define PCID_VIRTIO_NET 0x1000
U0 NetDriverInclude(U8 *driver)
{
@ -19,33 +18,63 @@ U0 NetDriverInclude(U8 *driver)
Free(filename);
}
class CNetDriver:CQueue
{
U16 vendor_id;
U16 device_id;
U8 *filename; // relative to Drivers/ folder, not absolute
};
CQueue *net_drivers = CAlloc(sizeof(CQueue));
QueueInit(net_drivers);
U0 NetDriverRegister(U16 vendor_id=NULL, U16 device_id=NULL, U8 *filename)
{
CNetDriver *driver;
if (!vendor_id && !device_id)
return;
driver = CAlloc(sizeof(CNetDriver));
driver->vendor_id = vendor_id;
driver->device_id = device_id;
driver->filename = StrNew(filename);
QueueInsertRev(driver, net_drivers);
}
U0 NetDriverInit()
{
CPCIDev *net_driver_pci = PCIDevFind(PCIC_NETWORK);
Bool found = FALSE;
Bool found = FALSE;
CNetDriver *net_driver;
CPCIDev *net_pci;
if (net_driver_pci)
// register NIC PCI details with driver (file)name
NetDriverRegister(PCIV_VIRTIO, PCID_VIRTIO_NET, "VirtIONet");
NetDriverRegister(PCIV_E1000, PCID_82545EM, "E1000");
NetDriverRegister(PCIV_PCNET, PCID_PCNET, "PCNet");
// iterate registered drivers until match is found, if any found
net_driver = net_drivers->next;
while (net_driver != net_drivers)
{
if (net_driver_pci=PCIDevFind(, , PCIV_PCNET, PCID_PCNET))
net_pci = PCIDevFind(,, net_driver->vendor_id, net_driver->device_id);
if (net_pci)
{
NetDriverInclude("PCNet");
found = TRUE;
}
else if (net_driver_pci=PCIDevFind(, , PCIV_E1000, PCID_82545EM))
{
NetDriverInclude("E1000");
found = TRUE;
}
else if (net_driver_pci=PCIDevFind(PCIC_NETWORK, , PCIV_VIRTIO, ))
{
NetDriverInclude("VirtIONet");
found = TRUE;
NetDriverInclude(net_driver->filename);
break;
}
net_driver = net_driver->next;
}
if (!found)
{
ClassRep(net_driver_pci);
ClassRep(net_pci);
throw('NODRIVER');
}
}

4
src/System/DevInfo.ZC
View file

@ -55,7 +55,7 @@ lud_done:
public CPCIDev *PCIDevFind(U16 class_code=NULL, U16 sub_code=NULL,
U16 vendor_id=NULL, U16 device_id=NULL,
U8 _bus=0xFF, U8 _dev=0xFF, U8 _fun=0xFF)
{//return first device with matching class & subcode, vendor & device id, class & device id, class & vendor id or a specific device.
{//return first device with matching class & subcode, vendor & device id, or a specific device.
PCILookUpDevs;
CPCIDev *p = dev.pci_head.next;
@ -63,8 +63,6 @@ public CPCIDev *PCIDevFind(U16 class_code=NULL, U16 sub_code=NULL,
{
if (p->vendor_id == vendor_id && p->device_id == device_id ||
p->class_code == class_code && p->sub_code == sub_code ||
p->class_code == class_code && p->device_id == device_id && vendor_id == NULL ||
p->class_code == class_code && p->vendor_id == vendor_id && device_id == NULL ||
p->bus == _bus && p->dev == _dev && p->fun == _fun)
return p;