C++ (Cpp) ofw_bus_lookup_imap Examples

Example #1

File: ofw_pci.c Project: ngkaho1234/freebsd

static int
ofw_pci_route_interrupt(device_t bus, device_t dev, int pin)
{
	struct ofw_pci_softc *sc;
	struct ofw_pci_register reg;
	uint32_t pintr, mintr[2];
	int intrcells;
	phandle_t iparent;

	sc = device_get_softc(bus);
	pintr = pin;

	/* Fabricate imap information in case this isn't an OFW device */
	bzero(&reg, sizeof(reg));
	reg.phys_hi = (pci_get_bus(dev) << OFW_PCI_PHYS_HI_BUSSHIFT) |
	    (pci_get_slot(dev) << OFW_PCI_PHYS_HI_DEVICESHIFT) |
	    (pci_get_function(dev) << OFW_PCI_PHYS_HI_FUNCTIONSHIFT);

	intrcells = ofw_bus_lookup_imap(ofw_bus_get_node(dev),
	    &sc->sc_pci_iinfo, &reg, sizeof(reg), &pintr, sizeof(pintr),
	    mintr, sizeof(mintr), &iparent);
	if (intrcells) {
		pintr = ofw_bus_map_intr(dev, iparent, intrcells, mintr);
		return (pintr);
	}

	/* Maybe it's a real interrupt, not an intpin */
	if (pin > 4)
		return (pin);

	device_printf(bus, "could not route pin %d for device %d.%d\n",
	    pin, pci_get_slot(dev), pci_get_function(dev));
	return (PCI_INVALID_IRQ);
}

Example #2

int
ofw_pcib_gen_route_interrupt(device_t bridge, device_t dev, int intpin)
{
	struct ofw_pcib_gen_softc *sc;
	struct ofw_bus_iinfo *ii;
	struct ofw_pci_register reg;
	ofw_pci_intr_t pintr, mintr;
	uint8_t maskbuf[sizeof(reg) + sizeof(pintr)];

	sc = device_get_softc(bridge);
	ii = &sc->ops_iinfo;
	if (ii->opi_imapsz > 0) {
		pintr = intpin;
		if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, &reg,
		    sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
		    NULL, maskbuf)) {
			/*
			 * If we've found a mapping, return it and don't map
			 * it again on higher levels - that causes problems
			 * in some cases, and never seems to be required.
			 */
			return (mintr);
		}
	} else if (intpin >= 1 && intpin <= 4) {
		/*
		 * When an interrupt map is missing, we need to do the
		 * standard PCI swizzle and continue mapping at the parent.
		 */
		return (pcib_route_interrupt(bridge, dev, intpin));
	}
	/* Try at the parent. */
	return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent(
	    bridge)), bridge, intpin));
}

Example #3

File: ofw_pci.c Project: embedclub/freebsd

ofw_pci_intr_t
ofw_pci_route_interrupt_common(device_t bridge, device_t dev, int pin)
{
    struct ofw_pci_softc *sc;
    struct ofw_pci_register reg;
    ofw_pci_intr_t pintr, mintr;

    sc = device_get_softc(bridge);
    pintr = pin;
    if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), &sc->sc_pci_iinfo,
                            &reg, sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
                            NULL) != 0)
        return (mintr);
    return (PCI_INVALID_IRQ);
}

Example #4

File: ofw_isa.c Project: 2asoft/freebsd

ofw_pci_intr_t
ofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii,
    ofw_isa_intr_t intr)
{
	struct isa_regs reg;
	device_t pbridge;
	ofw_isa_intr_t mintr;

	pbridge = device_get_parent(device_get_parent(bridge));
	/*
	 * If we get a match from using the map, the resulting INO is
	 * fully specified, so we may not continue to map.
	 */
	if (!ofw_bus_lookup_imap(node, ii, &reg, sizeof(reg),
	    &intr, sizeof(intr), &mintr, sizeof(mintr), NULL)) {
		/* Try routing at the parent bridge. */
		mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr);
	}
	return (mintr);
}

Example #5

File: ofw_pcib_pci.c Project: genba/freebsd

static int
ofw_pcib_pci_route_interrupt(device_t bridge, device_t dev, int intpin)
{
	struct ofw_pcib_softc *sc;
	struct ofw_bus_iinfo *ii;
	struct ofw_pci_register reg;
	cell_t pintr, mintr;
	phandle_t iparent;
	uint8_t maskbuf[sizeof(reg) + sizeof(pintr)];

	sc = device_get_softc(bridge);
	ii = &sc->ops_iinfo;
	if (ii->opi_imapsz > 0) {
		pintr = intpin;

		/* Fabricate imap information if this isn't an OFW device */
		bzero(&reg, sizeof(reg));
		reg.phys_hi = (pci_get_bus(dev) << OFW_PCI_PHYS_HI_BUSSHIFT) |
		    (pci_get_slot(dev) << OFW_PCI_PHYS_HI_DEVICESHIFT) |
		    (pci_get_function(dev) << OFW_PCI_PHYS_HI_FUNCTIONSHIFT);

		if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, &reg,
		    sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
		    &iparent, maskbuf)) {
			/*
			 * If we've found a mapping, return it and don't map
			 * it again on higher levels - that causes problems
			 * in some cases, and never seems to be required.
			 */
			return (ofw_bus_map_intr(dev, iparent, mintr));
		}
	} else if (intpin >= 1 && intpin <= 4) {
		/*
		 * When an interrupt map is missing, we need to do the
		 * standard PCI swizzle and continue mapping at the parent.
		 */
		return (pcib_route_interrupt(bridge, dev, intpin));
	}
	return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent(
	    bridge)), bridge, intpin));
}

Example #6

File: ofw_pci.c Project: dcui/FreeBSD-9.3_kernel

static int
ofw_pci_route_interrupt(device_t bus, device_t dev, int pin)
{
	struct ofw_pci_softc *sc;
	struct ofw_pci_register reg;
	uint32_t pintr, mintr;
	phandle_t iparent;
	uint8_t maskbuf[sizeof(reg) + sizeof(pintr)];

	sc = device_get_softc(bus);
	pintr = pin;
	if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), &sc->sc_pci_iinfo, &reg,
	    sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
	    &iparent, maskbuf))
		return (MAP_IRQ(iparent, mintr));

	/* Maybe it's a real interrupt, not an intpin */
	if (pin > 4)
		return (pin);

	device_printf(bus, "could not route pin %d for device %d.%d\n",
	    pin, pci_get_slot(dev), pci_get_function(dev));
	return (PCI_INVALID_IRQ);
}