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CHECKP: shitty VFS

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boreddevnl
2026-04-11 21:41:11 +02:00
parent 6b6a22d518
commit 5933483009
15 changed files with 2768 additions and 575 deletions
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20
src/dev/pci.c
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@@ -97,3 +97,23 @@ int pci_find_device_by_class(uint8_t class_code, uint8_t subclass, pci_device_t*
}
return 0;
}
uint32_t pci_get_bar(pci_device_t *dev, int bar_num) {
if (!dev || bar_num < 0 || bar_num > 5) return 0;
uint8_t offset = 0x10 + (bar_num * 4);
return pci_read_config(dev->bus, dev->device, dev->function, offset);
}
void pci_enable_bus_mastering(pci_device_t *dev) {
if (!dev) return;
uint32_t cmd = pci_read_config(dev->bus, dev->device, dev->function, 0x04);
cmd |= (1 << 2); // Set Bus Master bit
pci_write_config(dev->bus, dev->device, dev->function, 0x04, cmd);
}
void pci_enable_mmio(pci_device_t *dev) {
if (!dev) return;
uint32_t cmd = pci_read_config(dev->bus, dev->device, dev->function, 0x04);
cmd |= (1 << 1); // Set Memory Space bit
pci_write_config(dev->bus, dev->device, dev->function, 0x04, cmd);
}