C++ (Cpp) pci_mcfg_map_bus Beispiele

Beispiel #1

Datei: pci_machdep.c Projekt: appleorange1/bitrig

pcireg_t
pci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
{
	pcireg_t data;
	int bus;

	KASSERT((reg & 0x3) == 0);

	if (pci_mcfg_addr && reg >= PCI_CONFIG_SPACE_SIZE) {
		pci_decompose_tag(pc, tag, &bus, NULL, NULL);
		if (bus >= pci_mcfg_min_bus && bus <= pci_mcfg_max_bus) {
			pci_mcfg_map_bus(bus);
			data = bus_space_read_4(pci_mcfgt, pci_mcfgh[bus],
			    (tag & 0x000ff00) << 4 | reg);
			return data;
		}
	}

	PCI_CONF_LOCK();
	outl(PCI_MODE1_ADDRESS_REG, tag | reg);
	data = inl(PCI_MODE1_DATA_REG);
	outl(PCI_MODE1_ADDRESS_REG, 0);
	PCI_CONF_UNLOCK();

	return data;
}

Beispiel #2

Datei: pci_machdep.c Projekt: alenichev/openbsd-kernel

void
pci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
{
	int bus;

	if (pci_mcfg_addr && reg >= PCI_CONFIG_SPACE_SIZE) {
		pci_decompose_tag(pc, tag, &bus, NULL, NULL);
		if (bus >= pci_mcfg_min_bus && bus <= pci_mcfg_max_bus) {
			pci_mcfg_map_bus(bus);
			bus_space_write_4(pci_mcfgt, pci_mcfgh[bus],
			    (tag.mode1 & 0x000ff00) << 4 | reg, data);
			return;
		}
	}

	PCI_CONF_LOCK();
	switch (pci_mode) {
	case 1:
		outl(PCI_MODE1_ADDRESS_REG, tag.mode1 | reg);
		outl(PCI_MODE1_DATA_REG, data);
		outl(PCI_MODE1_ADDRESS_REG, 0);
		break;
	case 2:
		outb(PCI_MODE2_ENABLE_REG, tag.mode2.enable);
		outb(PCI_MODE2_FORWARD_REG, tag.mode2.forward);
		outl(tag.mode2.port | reg, data);
		outb(PCI_MODE2_ENABLE_REG, 0);
		break;
	default:
		panic("pci_conf_write: mode not configured");
	}
	PCI_CONF_UNLOCK();
}