C++ pci_mapreg_map函数代码示例

static void
mtd_pci_attach(device_t parent, device_t self, void *aux)
{
	struct pci_attach_args * const pa = aux;
	struct mtd_softc * const sc = device_private(self);
	pci_intr_handle_t ih;
	const char *intrstring = NULL;
	bus_space_tag_t iot, memt;
	bus_space_handle_t ioh, memh;
	int io_valid, mem_valid;

	sc->dev = self;
	pci_aprint_devinfo(pa, NULL);

	io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO,
			0, &iot, &ioh, NULL, NULL) == 0);
	mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM
			| PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh,
			NULL, NULL) == 0);

	if (mem_valid) {
		sc->bus_tag = memt;
		sc->bus_handle = memh;
	} else if (io_valid) {
		sc->bus_tag = iot;
		sc->bus_handle = ioh;
	} else {
		aprint_error_dev(sc->dev, "could not map memory or i/o space\n");
		return;
	}
	sc->dma_tag = pa->pa_dmat;

	/* Do generic attach. Seems this must be done before setting IRQ */
	mtd_config(sc);

	if (pci_intr_map(pa, &ih)) {
		aprint_error_dev(sc->dev, "could not map interrupt\n");
		return;
	}
	intrstring = pci_intr_string(pa->pa_pc, ih);

	if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) {
		aprint_error_dev(sc->dev, "could not establish interrupt");
		if (intrstring != NULL)
			aprint_error(" at %s", intrstring);
		aprint_error("\n");
		return;
	} else {
		aprint_normal_dev(sc->dev, "using %s for interrupt\n",
			intrstring ? intrstring : "unknown interrupt");
	}
}

void
ral_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
	struct rt2560_softc *sc = &psc->sc_sc;
	struct pci_attach_args *pa = aux;
	const char *intrstr;
	pci_intr_handle_t ih;
	pcireg_t memtype;
	int error;

	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK) {
		switch (PCI_PRODUCT(pa->pa_id)) {
		case PCI_PRODUCT_RALINK_RT2560:
			psc->sc_opns = &ral_rt2560_opns;
			break;
		case PCI_PRODUCT_RALINK_RT2561:
		case PCI_PRODUCT_RALINK_RT2561S:
		case PCI_PRODUCT_RALINK_RT2661:
			psc->sc_opns = &ral_rt2661_opns;
			break;
		default:
			psc->sc_opns = &ral_rt2860_opns;
			break;
		}
	} else {
		/* all other vendors are RT2860 only */
		psc->sc_opns = &ral_rt2860_opns;
	}
	sc->sc_dmat = pa->pa_dmat;
	psc->sc_pc = pa->pa_pc;

	/* map control/status registers */
	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RAL_PCI_BAR0);
	error = pci_mapreg_map(pa, RAL_PCI_BAR0, memtype, 0, &sc->sc_st,
	    &sc->sc_sh, NULL, &psc->sc_mapsize, 0);
	if (error != 0) {
		printf(": can't map mem space\n");
		return;
	}

	if (pci_intr_map(pa, &ih) != 0) {
		printf(": can't map interrupt\n");
		return;
	}

	intrstr = pci_intr_string(psc->sc_pc, ih);
	psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET,
	    psc->sc_opns->intr, sc, sc->sc_dev.dv_xname);
	if (psc->sc_ih == NULL) {
		printf(": can't establish interrupt");
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf(": %s", intrstr);

	(*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id));
}

/*
 * Check the slots looking for a board we recognise
 * If we find one, note its address (slot) and call
 * the actual probe routine to check it out.
 */
static int
bha_pci_match(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = aux;
	bus_space_tag_t iot;
	bus_space_handle_t ioh;
	bus_size_t iosize;
	int rv;

	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC)
		return (0);

	if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC &&
	    PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
		return (0);

	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
	    NULL, &iosize))
		return (0);

	rv = bha_find(iot, ioh);

	bus_space_unmap(iot, ioh, iosize);

	return (rv);
}

static int
ahci_pci_match(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = aux;
	bus_space_tag_t regt;
	bus_space_handle_t regh;
	bus_size_t size;
	int ret = 0;
	bool force;

	force = ((ahci_pci_has_quirk( PCI_VENDOR(pa->pa_id),
	    PCI_PRODUCT(pa->pa_id)) & AHCI_PCI_QUIRK_FORCE) != 0);

	/* if wrong class and not forced by quirks, don't match */
	if ((PCI_CLASS(pa->pa_class) != PCI_CLASS_MASS_STORAGE ||
	    ((PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_SATA ||
	     PCI_INTERFACE(pa->pa_class) != PCI_INTERFACE_SATA_AHCI) &&
	     PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_RAID)) &&
	    (force == false))
		return 0;

	if (pci_mapreg_map(pa, AHCI_PCI_ABAR,
	    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
	    &regt, &regh, NULL, &size) != 0)
		return 0;

	if ((PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_SATA &&
	     PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_SATA_AHCI) ||
	    (bus_space_read_4(regt, regh, AHCI_GHC) & AHCI_GHC_AE) ||
	    (force == true))
		ret = 3;

	bus_space_unmap(regt, regh, size);
	return ret;
}

void
pwdog_attach(device_t parent, device_t self, void *aux)
{
	struct pwdog_softc *sc = device_private(self);
	struct pci_attach_args *const pa = (struct pci_attach_args *)aux;
	pcireg_t memtype;

	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START);
	if (pci_mapreg_map(pa, PCI_MAPREG_START, memtype, 0, &sc->sc_iot,
	    &sc->sc_ioh, NULL, &sc->sc_iosize)) {
		aprint_error("\n");
		aprint_error_dev(self, "PCI %s region not found\n",
		    memtype == PCI_MAPREG_TYPE_IO ? "I/O" : "memory");
		return;
	}
	printf("\n");

	sc->sc_dev = self;

	pmf_device_register(self, pwdog_suspend, pwdog_resume);
	bus_space_write_1(sc->sc_iot, sc->sc_ioh, PWDOG_DISABLE, 0);

	sc->sc_smw.smw_name = device_xname(self);
	sc->sc_smw.smw_cookie = sc;
	sc->sc_smw.smw_setmode = pwdog_setmode;
	sc->sc_smw.smw_tickle = pwdog_tickle;
	sc->sc_smw.smw_period = PWDOG_MAX_PERIOD;

	if (sysmon_wdog_register(&sc->sc_smw))
		aprint_error_dev(self, "couldn't register with sysmon\n");
	else
		sc->sc_smw_valid = true;
}

/*
 * map the BAR in question, returning the vga_pci_bar struct in case any more
 * processing needs to be done. Returns NULL on failure. Can be called multiple
 * times.
 */
struct vga_pci_bar*
vga_pci_bar_map(struct vga_pci_softc *dev, int addr, bus_size_t size,
    int busflags)
{
	struct vga_pci_bar *bar = NULL;
	int i;

	if (dev == NULL)
		return (NULL);

	for (i = 0; i < VGA_PCI_MAX_BARS; i++) {
		if (dev->bars[i] && dev->bars[i]->addr == addr) {
			bar = dev->bars[i];
			break;
		}
	}
	if (bar == NULL) {
		printf("vga_pci_bar_map: given invalid address 0x%x\n", addr);
		return (NULL);
	}

	if (bar->mapped == 0) {
		if (pci_mapreg_map(&dev->pa, bar->addr, bar->maptype,
		    bar->flags | busflags, &bar->bst, &bar->bsh, NULL,
		    &bar->size, size)) {
			printf("vga_pci_bar_map: can't map bar 0x%x\n", addr);
			return (NULL);
		}
	}

	bar->mapped++;
	return (bar);
}

static void
mtd_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct mtd_softc *sc = (void *)self;
	struct pci_attach_args *pa = aux;
	pci_intr_handle_t ih;
	const char *intrstr = NULL;
	bus_size_t iosize;

#ifndef MTD_USE_IO
	if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
	    &sc->bus_tag, &sc->bus_handle, NULL, &iosize, 0)) {
		printf(": can't map mem space\n");
		return;
	}
#else	/* MTD_USE_IO */
	if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
	    &sc->bus_tag, &sc->bus_handle, NULL, &iosize, 0)) {
		printf(": can't map io space\n");
		return;
	}
#endif	/* MTD_USE_IO */

	/*
	 * Allocate our interrupt.
	 */
	if (pci_intr_map(pa, &ih)) {
		printf(": couldn't map interrupt\n");
		bus_space_unmap(sc->bus_tag, sc->bus_handle, iosize);
		return;
	}

	intrstr = pci_intr_string(pa->pa_pc, ih);
	if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc,
	    self->dv_xname) == NULL) {
		printf(": couldn't establish interrupt");
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		bus_space_unmap(sc->bus_tag, sc->bus_handle, iosize);
		return;
	}
	printf(": %s", intrstr);

	sc->dma_tag = pa->pa_dmat;
	mtd_config(sc);
}

void
amdiic_attach(struct device *parent, struct device *self, void *aux)
{
	struct amdiic_softc *sc = (struct amdiic_softc *)self;
	struct pci_attach_args *pa = aux;
	struct i2cbus_attach_args iba;
	pcireg_t conf;
	bus_size_t iosize;
	pci_intr_handle_t ih;
	const char *intrstr = NULL;

	/* Map I/O space */
	if (pci_mapreg_map(pa, AMD8111_SMB_BASE, PCI_MAPREG_TYPE_IO, 0,
	    &sc->sc_iot, &sc->sc_ioh, NULL, &iosize, 0)) {
		printf(": can't map i/o space\n");
		return;
	}

	/* Read configuration */
	conf = pci_conf_read(pa->pa_pc, pa->pa_tag, AMD8111_SMB_MISC);
	DPRINTF((": conf 0x%08x", conf));

	sc->sc_poll = 1;
	if (conf & AMD8111_SMB_MISC_SCIEN) {
		/* No PCI IRQ */
		printf(": SCI");
	} else if (conf & AMD8111_SMB_MISC_INTEN) {
		/* Install interrupt handler */
		if (pci_intr_map(pa, &ih) == 0) {
			intrstr = pci_intr_string(pa->pa_pc, ih);
			sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO,
			    amdiic_intr, sc, sc->sc_dev.dv_xname);
			if (sc->sc_ih != NULL) {
				printf(": %s", intrstr);
				sc->sc_poll = 0;
			}
		}
		if (sc->sc_poll)
			printf(": polling");
	}

	printf("\n");

	/* Attach I2C bus */
	rw_init(&sc->sc_i2c_lock, "iiclk");
	sc->sc_i2c_tag.ic_cookie = sc;
	sc->sc_i2c_tag.ic_acquire_bus = amdiic_i2c_acquire_bus;
	sc->sc_i2c_tag.ic_release_bus = amdiic_i2c_release_bus;
	sc->sc_i2c_tag.ic_exec = amdiic_i2c_exec;

	bzero(&iba, sizeof(iba));
	iba.iba_name = "iic";
	iba.iba_tag = &sc->sc_i2c_tag;
	config_found(self, &iba, iicbus_print);

	return;
}

void
ral_pci_attach(device_t parent, device_t self, void *aux)
{
	struct ral_pci_softc *psc = device_private(self);
	struct rt2560_softc *sc = &psc->sc_sc;
	const struct pci_attach_args *pa = aux;
	const char *intrstr;
	bus_addr_t base;
	pci_intr_handle_t ih;
	pcireg_t reg;
	int error;

	pci_aprint_devinfo(pa, NULL);

	psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ?
	    &ral_rt2560_opns : &ral_rt2661_opns;

	sc->sc_dev = self;
	sc->sc_dmat = pa->pa_dmat;
	psc->sc_pc = pa->pa_pc;

	/* enable the appropriate bits in the PCI CSR */
	reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
	reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);

	/* map control/status registers */
	error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
	    PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base,
	    &psc->sc_mapsize);

	if (error != 0) {
		aprint_error(": could not map memory space\n");
		return;
	}

	if (pci_intr_map(pa, &ih) != 0) {
		aprint_error(": could not map interrupt\n");
		return;
	}

	intrstr = pci_intr_string(psc->sc_pc, ih);
	psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET,
	    psc->sc_opns->intr, sc);

	if (psc->sc_ih == NULL) {
		aprint_error(": could not establish interrupt");
		if (intrstr != NULL)
			aprint_error(" at %s", intrstr);
		aprint_error("\n");
		return;
	}
	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);

	(*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id));
}

void
mfi_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct mfi_softc	*sc = (struct mfi_softc *)self;
	struct pci_attach_args	*pa = aux;
	const struct mfi_pci_device *mpd;
	pci_intr_handle_t	ih;
	bus_size_t		size;
	pcireg_t		reg;
	int			regbar;

	mpd = mfi_pci_find_device(pa);
	if (mpd == NULL) {
		printf(": can't find matching pci device\n");
		return;
	}

	if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY)
		regbar = MFI_BAR_GEN2;
	else
		regbar = MFI_BAR;

	reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar);
	if (pci_mapreg_map(pa, regbar, reg, 0,
	    &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) {
		printf(": can't map controller pci space\n");
		return;
	}

	sc->sc_dmat = pa->pa_dmat;

	if (pci_intr_map(pa, &ih) != 0) {
		printf(": can't map interrupt\n");
		goto unmap;
	}
	printf(": %s\n", pci_intr_string(pa->pa_pc, ih));

	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mfi_intr, sc,
	    sc->sc_dev.dv_xname);
	if (!sc->sc_ih) {
		printf("%s: can't establish interrupt\n", DEVNAME(sc));
		goto unmap;
	}

	if (mfi_attach(sc, mpd->mpd_iop)) {
		printf("%s: can't attach\n", DEVNAME(sc));
		goto unintr;
	}

	return;
unintr:
	pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
	sc->sc_ih = NULL;
unmap:
	bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
}

void
pgt_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct pgt_pci_softc *psc = (struct pgt_pci_softc *)self;
	struct pgt_softc *sc = &psc->sc_pgt;
	struct pci_attach_args *pa = aux;
	const char *intrstr = NULL;
	pci_intr_handle_t ih;
	int error;

	sc->sc_dmat = pa->pa_dmat;
	psc->sc_pc = pa->pa_pc;

	/* remember chipset */
	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTERSIL_ISL3877)
		sc->sc_flags |= SC_ISL3877;

	/* map control / status registers */
	error = pci_mapreg_map(pa, PGT_PCI_BAR0,
	    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
	    &sc->sc_iotag, &sc->sc_iohandle, NULL, &psc->sc_mapsize, 0);
	if (error != 0) {
		printf(": can't map mem space\n");
		return;
	}

	/* map interrupt */
	if (pci_intr_map(pa, &ih) != 0) {
		printf(": can't map interrupt\n");
		return;
	}

	/* disable all interrupts */
	bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN, 0);
	(void)bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN);
	DELAY(PGT_WRITEIO_DELAY);

	/* establish interrupt */
	intrstr = pci_intr_string(psc->sc_pc, ih);
	psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, pgt_intr, sc,
	    sc->sc_dev.dv_xname);
	if (psc->sc_ih == NULL) {
		printf(": can't establish interrupt");
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf(": %s\n", intrstr);

	if (rootvp == NULL)
		mountroothook_establish(pgt_attach, sc);
	else
		pgt_attach(sc);
}

void
rtsx_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct rtsx_pci_softc *sc = (struct rtsx_pci_softc *)self;
	struct pci_attach_args *pa = aux;
	pci_intr_handle_t ih;
	char const *intrstr;
	bus_space_tag_t iot;
	bus_space_handle_t ioh;
	bus_size_t size;
	int flags;

	if ((pci_conf_read(pa->pa_pc, pa->pa_tag, RTSX_CFG_PCI)
	    & RTSX_CFG_ASIC) != 0) {
		printf("%s: no asic\n", sc->sc.sc_dev.dv_xname);
		return;
	}

	if (pci_intr_map_msi(pa, &ih) && pci_intr_map(pa, &ih)) {
		printf(": can't map interrupt\n");
		return;
	}

	intrstr = pci_intr_string(pa->pa_pc, ih);
	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_SDMMC,
	    rtsx_intr, sc, sc->sc.sc_dev.dv_xname);
	if (sc->sc_ih == NULL) {
		printf(": can't establish interrupt\n");
		return;
	}
	printf(": %s\n", intrstr);

	if (pci_mem_find(pa->pa_pc, pa->pa_tag, RTSX_PCI_BAR,
	    NULL, NULL, NULL) != 0) {
		printf("%s: can't find registers\n", sc->sc.sc_dev.dv_xname);
	    	return;
	}

	if (pci_mapreg_map(pa, RTSX_PCI_BAR, PCI_MAPREG_TYPE_MEM, 0,
	    &iot, &ioh, NULL, &size, 0)) {
		printf("%s: can't map registers\n", sc->sc.sc_dev.dv_xname);
		return;
	}

	pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);

	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5209)
		flags = RTSX_F_5209;
	else
		flags = RTSX_F_5229;

	if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat, flags) != 0)
		printf("%s: can't initialize chip\n", sc->sc.sc_dev.dv_xname);
}

void
bwi_pci_attach(struct device *parent, struct device *self, void *aux)
{
	struct bwi_pci_softc *psc = (struct bwi_pci_softc *)self;
	struct pci_attach_args *pa = aux;
	struct bwi_softc *sc = &psc->psc_bwi;
	const char *intrstr = NULL;
	pci_intr_handle_t ih;
	pcireg_t memtype, reg;

	sc->sc_dmat = pa->pa_dmat;
	psc->psc_pc = pa->pa_pc;
	psc->psc_pcitag = pa->pa_tag;

	/* map control / status registers */
	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BWI_PCI_BAR0); 
	if (pci_mapreg_map(pa, BWI_PCI_BAR0, memtype, 0, &sc->sc_mem_bt,
	    &sc->sc_mem_bh, NULL, &psc->psc_mapsize, 0)) {
		printf(": can't map mem space\n");
		return;
	}

	/* map interrupt */
	if (pci_intr_map(pa, &ih) != 0) {
		printf(": can't map interrupt\n");
		return;
	}

	/* establish interrupt */
	intrstr = pci_intr_string(psc->psc_pc, ih);
	psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_NET, bwi_intr, sc,
	    sc->sc_dev.dv_xname);
	if (psc->psc_ih == NULL) {
		printf(": can't establish interrupt");
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf(": %s", intrstr);

	/* we need to access PCI config space from the driver */
	sc->sc_conf_write = bwi_pci_conf_write;
	sc->sc_conf_read = bwi_pci_conf_read;

	reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);

	sc->sc_pci_revid = PCI_REVISION(pa->pa_class);
	sc->sc_pci_did = PCI_PRODUCT(pa->pa_id);
	sc->sc_pci_subvid = PCI_VENDOR(reg);
	sc->sc_pci_subdid = PCI_PRODUCT(reg);

	bwi_attach(sc);
}

int
ne_pci_ipkdb_attach(struct ipkdb_if *kip, bus_space_tag_t iot,
    pci_chipset_tag_t pc, int bus, int dev)
{
	struct pci_attach_args pa;
	bus_space_tag_t nict, asict;
	bus_space_handle_t nich, asich;
	u_int32_t csr;

	pa.pa_iot = iot;
	pa.pa_pc = pc;
	pa.pa_device = dev;
	pa.pa_function = 0;
	pa.pa_flags = PCI_FLAGS_IO_OKAY;
	pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0);
	pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG);
	pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG);
	if (ne_pci_lookup(&pa) == NULL)
		return -1;

	if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
			&nict, &nich, NULL, NULL))
		return -1;

	asict = nict;
	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
				NE2000_ASIC_NPORTS, &asich)) {
		bus_space_unmap(nict, nich, NE2000_NPORTS);
		return -1;
	}

	/* Enable card */
	csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG);
	pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG,
			csr | PCI_COMMAND_MASTER_ENABLE);

	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict;
	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich;
	ipkdb_softc.sc_ne2000.sc_asict = asict;
	ipkdb_softc.sc_ne2000.sc_asich = asich;

	kip->port = &ipkdb_softc;
	ipkdb_pc = pc;
	ipkdb_tag = pa.pa_tag;
	ne_kip = kip;

	if (ne2000_ipkdb_attach(kip) < 0) {
		bus_space_unmap(nict, nich, NE2000_NPORTS);
		return -1;
	}

	return 0;
}

static void
nca_pci_attach(device_t parent, device_t self, void *aux)
{
	struct ncr5380_softc *sc = device_private(self);
	struct pci_attach_args *pa = aux;

	sc->sc_dev = self;

	pci_aprint_devinfo(pa, "SCSI controller");

	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0,
            &sc->sc_regt, &sc->sc_regh, NULL, NULL)) {
                aprint_error_dev(self, "could not map IO space\n");
                return;
        }
	
	/* The Domex 536 seems to be driven by polling,
	 * don't bother mapping an interrupt handler.
	 */
	
	sc->sc_rev = NCR_VARIANT_CXD1180;
	sc->sci_r0 = 0;
	sc->sci_r1 = 1;
	sc->sci_r2 = 2;
	sc->sci_r3 = 3;
	sc->sci_r4 = 4;
	sc->sci_r5 = 5;
	sc->sci_r6 = 6;
	sc->sci_r7 = 7;

	sc->sc_pio_out = ncr5380_pio_out;
	sc->sc_pio_in =  ncr5380_pio_in;
	sc->sc_dma_alloc = NULL;
	sc->sc_dma_free  = NULL;
	sc->sc_dma_setup = NULL;
	sc->sc_dma_start = NULL;
	sc->sc_dma_poll  = NULL;
	sc->sc_dma_eop   = NULL;
	sc->sc_dma_stop  = NULL;
	sc->sc_intr_on   = NULL;
	sc->sc_intr_off  = NULL;

	sc->sc_flags |= NCR5380_FORCE_POLLING;

	sc->sc_min_dma_len = 0;

	sc->sc_adapter.adapt_request = ncr5380_scsipi_request;
	sc->sc_adapter.adapt_minphys = minphys;

	sc->sc_channel.chan_id = 7;

	ncr5380_attach(sc);
}