static __init int intel_router_probe()

in pci/irq.c [790:875]

• 81 lines of code
• 53 McCabe index (conditional complexity)

static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
{
	static struct pci_device_id __initdata pirq_440gx[] = {
		{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) },
		{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) },
		{ },
	};

	/* 440GX has a proprietary PIRQ router -- don't use it */
	if (pci_dev_present(pirq_440gx))
		return 0;

	switch (device) {
	case PCI_DEVICE_ID_INTEL_82375:
		r->name = "PCEB/ESC";
		r->get = pirq_esc_get;
		r->set = pirq_esc_set;
		return 1;
	case PCI_DEVICE_ID_INTEL_82371FB_0:
	case PCI_DEVICE_ID_INTEL_82371SB_0:
	case PCI_DEVICE_ID_INTEL_82371AB_0:
	case PCI_DEVICE_ID_INTEL_82371MX:
	case PCI_DEVICE_ID_INTEL_82443MX_0:
	case PCI_DEVICE_ID_INTEL_82801AA_0:
	case PCI_DEVICE_ID_INTEL_82801AB_0:
	case PCI_DEVICE_ID_INTEL_82801BA_0:
	case PCI_DEVICE_ID_INTEL_82801BA_10:
	case PCI_DEVICE_ID_INTEL_82801CA_0:
	case PCI_DEVICE_ID_INTEL_82801CA_12:
	case PCI_DEVICE_ID_INTEL_82801DB_0:
	case PCI_DEVICE_ID_INTEL_82801E_0:
	case PCI_DEVICE_ID_INTEL_82801EB_0:
	case PCI_DEVICE_ID_INTEL_ESB_1:
	case PCI_DEVICE_ID_INTEL_ICH6_0:
	case PCI_DEVICE_ID_INTEL_ICH6_1:
	case PCI_DEVICE_ID_INTEL_ICH7_0:
	case PCI_DEVICE_ID_INTEL_ICH7_1:
	case PCI_DEVICE_ID_INTEL_ICH7_30:
	case PCI_DEVICE_ID_INTEL_ICH7_31:
	case PCI_DEVICE_ID_INTEL_TGP_LPC:
	case PCI_DEVICE_ID_INTEL_ESB2_0:
	case PCI_DEVICE_ID_INTEL_ICH8_0:
	case PCI_DEVICE_ID_INTEL_ICH8_1:
	case PCI_DEVICE_ID_INTEL_ICH8_2:
	case PCI_DEVICE_ID_INTEL_ICH8_3:
	case PCI_DEVICE_ID_INTEL_ICH8_4:
	case PCI_DEVICE_ID_INTEL_ICH9_0:
	case PCI_DEVICE_ID_INTEL_ICH9_1:
	case PCI_DEVICE_ID_INTEL_ICH9_2:
	case PCI_DEVICE_ID_INTEL_ICH9_3:
	case PCI_DEVICE_ID_INTEL_ICH9_4:
	case PCI_DEVICE_ID_INTEL_ICH9_5:
	case PCI_DEVICE_ID_INTEL_EP80579_0:
	case PCI_DEVICE_ID_INTEL_ICH10_0:
	case PCI_DEVICE_ID_INTEL_ICH10_1:
	case PCI_DEVICE_ID_INTEL_ICH10_2:
	case PCI_DEVICE_ID_INTEL_ICH10_3:
	case PCI_DEVICE_ID_INTEL_PATSBURG_LPC_0:
	case PCI_DEVICE_ID_INTEL_PATSBURG_LPC_1:
		r->name = "PIIX/ICH";
		r->get = pirq_piix_get;
		r->set = pirq_piix_set;
		return 1;
	case PCI_DEVICE_ID_INTEL_82425:
		r->name = "PSC/IB";
		r->get = pirq_ib_get;
		r->set = pirq_ib_set;
		return 1;
	}

	if ((device >= PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MIN && 
	     device <= PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MAX) 
	||  (device >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN && 
	     device <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX)
	||  (device >= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MIN &&
	     device <= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MAX)
	||  (device >= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN &&
	     device <= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX)) {
		r->name = "PIIX/ICH";
		r->get = pirq_piix_get;
		r->set = pirq_piix_set;
		return 1;
	}

	return 0;
}