void
aupciattach(device_t parent, device_t self, void *aux)
{
    struct aupci_softc		*sc = device_private(self);
    struct aubus_attach_args	*aa = (struct aubus_attach_args *)aux;
    uint32_t			cfg;
#if NPCI > 0
    uint32_t			mbar, mask;
    bus_addr_t			mstart;
    struct pcibus_attach_args	pba;
#endif

    aupci_found = 1;

    sc->sc_dev = self;
    sc->sc_bust = aa->aa_st;
    if (bus_space_map(sc->sc_bust, aa->aa_addrs[0], 512, 0,
                      &sc->sc_bush) != 0) {
        aprint_error(": unable to map PCI registers\n");
        return;
    }

#if NPCI > 0
    /*
     * These physical addresses are locked in on the CPUs we have
     * seen.  Perhaps these should be passed in via locators, thru
     * the configuration file.
     */
    sc->sc_cfgbase = PCI_CONFIG_BASE;
    sc->sc_membase = PCI_MEM_BASE;
    sc->sc_iobase = PCI_IO_BASE;
#endif

    /*
     * Configure byte swapping, as YAMON doesn't do it.  YAMON does take
     * care of most of the rest of the details (clocking, etc.), however.
     */
#if _BYTE_ORDER == _BIG_ENDIAN
    /*
     * N.B.: This still doesn't do the DMA thing properly.  I have
     * not yet figured out how to get DMA access to work properly
     * without having bytes swapped while the processor is in
     * big-endian mode.  I'm not even sure that the Alchemy part
     * can do it without swapping the bytes (which would be a
     * bummer, since then only parts which had hardware detection
     * and swapping support would work without special hacks in
     * their drivers.)
     */
    cfg = AUPCI_CONFIG_CH | AUPCI_CONFIG_R1H |
          AUPCI_CONFIG_R2H | AUPCI_CONFIG_AEN |
          AUPCI_CONFIG_SM | AUPCI_CONFIG_ST | AUPCI_CONFIG_SIC_DATA;
#else
    cfg = AUPCI_CONFIG_CH | AUPCI_CONFIG_R1H |
          AUPCI_CONFIG_R2H | AUPCI_CONFIG_AEN;
#endif
    bus_space_write_4(sc->sc_bust, sc->sc_bush, AUPCI_CONFIG, cfg);

    cfg = bus_space_read_4(sc->sc_bust, sc->sc_bush, AUPCI_COMMAND_STATUS);

    aprint_normal(": Alchemy Host-PCI Bridge, %sMHz\n",
                  (cfg & PCI_STATUS_66MHZ_SUPPORT) ? "66" : "33");
    aprint_naive("\n");

#if NPCI > 0
    /*
     * PCI configuration space.  Address in this bus are
     * orthogonal to other spaces.  We need to make the entire
     * 32-bit address space available.
     */
    sc->sc_cfgt = &sc->sc_cfg_space;
    au_himem_space_init(sc->sc_cfgt, "pcicfg", sc->sc_cfgbase,
                        0x00000000, 0xffffffff, AU_HIMEM_SPACE_IO);

    /*
     * Virtual PCI memory.  Configured so that we don't overlap
     * with PCI memory space.
     */
    mask = bus_space_read_4(sc->sc_bust, sc->sc_bush, AUPCI_MWMASK);
    mask >>= AUPCI_MWMASK_SHIFT;
    mask <<= AUPCI_MWMASK_SHIFT;

    mbar = bus_space_read_4(sc->sc_bust, sc->sc_bush, AUPCI_MBAR);
    mstart = (mbar & mask) + (~mask + 1);

    sc->sc_memt = &sc->sc_mem_space;
    au_himem_space_init(sc->sc_memt, "pcimem", sc->sc_membase,
                        mstart, 0xffffffff, AU_HIMEM_SPACE_LITTLE_ENDIAN);

    /*
     * IO space.  Address in this bus are orthogonal to other spaces.
     * 16 MB should be plenty.  We don't start from zero to avoid
     * potential device bugs.
     */
    sc->sc_iot = &sc->sc_io_space;
    au_himem_space_init(sc->sc_iot, "pciio",
                        sc->sc_iobase, AUPCI_IO_START, AUPCI_IO_END,
                        AU_HIMEM_SPACE_LITTLE_ENDIAN | AU_HIMEM_SPACE_IO);

    sc->sc_pc.pc_conf_v = sc;
    sc->sc_pc.pc_attach_hook = aupci_attach_hook;
//.........这里部分代码省略.........

/* ARGSUSED */
void
flash_attach(device_t parent, device_t self, void *aux)
{
	struct flash_softc * const sc = device_private(self);
	struct flash_attach_args * const faa = aux;
	char pbuf[2][sizeof("9999 KB")];

	sc->sc_dev = self;
	sc->sc_parent_dev = parent;
	sc->flash_if = faa->flash_if;
	sc->sc_partinfo = faa->partinfo;
	sc->hw_softc = device_private(parent);

	format_bytes(pbuf[0], sizeof(pbuf[0]), sc->sc_partinfo.part_size);
	format_bytes(pbuf[1], sizeof(pbuf[1]), sc->flash_if->erasesize);

	aprint_naive("\n");

	switch (sc->flash_if->type) {
	case FLASH_TYPE_NOR:
		aprint_normal(": NOR flash partition size %s, offset %#jx",
			pbuf[0], (uintmax_t )sc->sc_partinfo.part_offset);
		break;

	case FLASH_TYPE_NAND:
		aprint_normal(": NAND flash partition size %s, offset %#jx",
			pbuf[0], (uintmax_t )sc->sc_partinfo.part_offset);
		break;

	default:
		aprint_normal(": %s unknown flash", pbuf[0]);
	}

	if (sc->sc_partinfo.part_flags & FLASH_PART_READONLY) {
		sc->sc_readonly = true;
		aprint_normal(", read only");
	} else {
		sc->sc_readonly = false;
	}

	aprint_normal("\n");

	if (sc->sc_partinfo.part_size == 0) {
		aprint_error_dev(self,
		    "partition size must be larger than 0\n");
		return;
	}

	switch (sc->flash_if->type) {
	case FLASH_TYPE_NOR:
		aprint_normal_dev(sc->sc_dev,
		    "erase size %s bytes, write size %d bytes\n",
		    pbuf[1], sc->flash_if->writesize);
		break;

	case FLASH_TYPE_NAND:
	default:
		aprint_normal_dev(sc->sc_dev,
		    "erase size %s, page size %d bytes, write size %d bytes\n",
		    pbuf[1], sc->flash_if->page_size,
		    sc->flash_if->writesize);
		break;
	}

	if (!pmf_device_register1(sc->sc_dev, NULL, NULL, flash_shutdown))
		aprint_error_dev(sc->sc_dev,
		    "couldn't establish power handler\n");
}

void 
urio_attach(device_t parent, device_t self, void *aux)
{
	struct urio_softc *sc = device_private(self);
	struct usb_attach_arg *uaa = aux;
	usbd_device_handle	dev = uaa->device;
	usbd_interface_handle	iface;
	char			*devinfop;
	usbd_status		err;
	usb_endpoint_descriptor_t *ed;
	u_int8_t		epcount;
	int			i;

	DPRINTFN(10,("urio_attach: sc=%p\n", sc));

	sc->sc_dev = self;

	aprint_naive("\n");
	aprint_normal("\n");

	devinfop = usbd_devinfo_alloc(dev, 0);
	aprint_normal_dev(self, "%s\n", devinfop);
	usbd_devinfo_free(devinfop);

	err = usbd_set_config_no(dev, URIO_CONFIG_NO, 1);
	if (err) {
		aprint_error_dev(self, "failed to set configuration"
		    ", err=%s\n", usbd_errstr(err));
		return;
	}

	err = usbd_device2interface_handle(dev, URIO_IFACE_IDX, &iface);
	if (err) {
		aprint_error_dev(self, "getting interface handle failed\n");
		return;
	}

	sc->sc_udev = dev;
	sc->sc_iface = iface;

	epcount = 0;
	(void)usbd_endpoint_count(iface, &epcount);

	sc->sc_in_addr = -1;
	sc->sc_out_addr = -1;
	for (i = 0; i < epcount; i++) {
		ed = usbd_interface2endpoint_descriptor(iface, i);
		if (ed == NULL) {
			aprint_error_dev(self, "couldn't get ep %d\n", i);
			return;
		}
		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
			sc->sc_in_addr = ed->bEndpointAddress;
		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
			sc->sc_out_addr = ed->bEndpointAddress;
		}
	}
	if (sc->sc_in_addr == -1 || sc->sc_out_addr == -1) {
		aprint_error_dev(self, "missing endpoint\n");
		return;
	}

	DPRINTFN(10, ("urio_attach: %p\n", sc->sc_udev));

	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
			   sc->sc_dev);

	return;
}

static void 
se_attach(device_t parent, device_t self, void *args)
{
	struct se_softc *sc = device_private(self);
	struct ncr5380_softc *ncr_sc = &sc->ncr_sc;
	struct cfdata *cf = device_cfdata(self);
	struct sebuf_attach_args *aa = args;
	volatile struct se_regs *regs;
	int i;

	ncr_sc->sc_dev = self;

	/* Get options from config flags if specified. */
	if (cf->cf_flags)
		sc->sc_options = cf->cf_flags;
	else
		sc->sc_options = se_options;

	aprint_normal(": options=0x%x\n", sc->sc_options);

	sc->sc_adapter_type = aa->ca.ca_bustype;
	sc->sc_adapter_iv = aa->ca.ca_intvec;
	sc->sc_regs = regs = aa->regs;

	/*
	 * MD function pointers used by the MI code.
	 */
	ncr_sc->sc_pio_out = ncr5380_pio_out;
	ncr_sc->sc_pio_in =  ncr5380_pio_in;

#if 0	/* XXX - not yet... */
	ncr_sc->sc_dma_alloc = se_dma_alloc;
	ncr_sc->sc_dma_free  = se_dma_free;
	ncr_sc->sc_dma_setup = se_dma_setup;
	ncr_sc->sc_dma_start = se_dma_start;
	ncr_sc->sc_dma_poll  = se_dma_poll;
	ncr_sc->sc_dma_eop   = se_dma_eop;
	ncr_sc->sc_dma_stop  = se_dma_stop;
	ncr_sc->sc_intr_on   = se_intr_on;
	ncr_sc->sc_intr_off  = se_intr_off;
#endif	/* XXX */

	/* Attach interrupt handler. */
	isr_add_vectored(se_intr, (void *)sc,
	    aa->ca.ca_intpri, aa->ca.ca_intvec);

	/* Reset the hardware. */
	se_reset(ncr_sc);

	/* Do the common attach stuff. */

	/*
	 * Support the "options" (config file flags).
	 * Disconnect/reselect is a per-target mask.
	 * Interrupts and DMA are per-controller.
	 */
	ncr_sc->sc_no_disconnect =
	    (sc->sc_options & SE_NO_DISCONNECT);
	ncr_sc->sc_parity_disable = 
	    (sc->sc_options & SE_NO_PARITY_CHK) >> 8;
	if (sc->sc_options & SE_FORCE_POLLING)
		ncr_sc->sc_flags |= NCR5380_FORCE_POLLING;

#if 1	/* XXX - Temporary */
	/* XXX - In case we think DMA is completely broken... */
	if (sc->sc_options & SE_DISABLE_DMA) {
		/* Override this function pointer. */
		ncr_sc->sc_dma_alloc = NULL;
	}
#endif
	ncr_sc->sc_min_dma_len = MIN_DMA_LEN;

	/*
	 * Initialize fields used by the MI code
	 */
	ncr_sc->sci_r0 = &regs->ncrregs[0];
	ncr_sc->sci_r1 = &regs->ncrregs[1];
	ncr_sc->sci_r2 = &regs->ncrregs[2];
	ncr_sc->sci_r3 = &regs->ncrregs[3];
	ncr_sc->sci_r4 = &regs->ncrregs[4];
	ncr_sc->sci_r5 = &regs->ncrregs[5];
	ncr_sc->sci_r6 = &regs->ncrregs[6];
	ncr_sc->sci_r7 = &regs->ncrregs[7];

	ncr_sc->sc_rev = NCR_VARIANT_NCR5380;

	/*
	 * Allocate DMA handles.
	 */
	i = SCI_OPENINGS * sizeof(struct se_dma_handle);
	sc->sc_dma = malloc(i, M_DEVBUF, M_WAITOK);
	if (sc->sc_dma == NULL)
		panic("se: dma_malloc failed");
	for (i = 0; i < SCI_OPENINGS; i++)
		sc->sc_dma[i].dh_flags = 0;

	ncr_sc->sc_channel.chan_id = 7;
	ncr_sc->sc_adapter.adapt_minphys = se_minphys;

	/*
//.........这里部分代码省略.........

/* Attach */
void
url_attach(device_t parent, device_t self, void *aux)
{
	struct url_softc *sc = device_private(self);
	struct usb_attach_arg *uaa = aux;
	usbd_device_handle dev = uaa->device;
	usbd_interface_handle iface;
	usbd_status err;
	usb_interface_descriptor_t *id;
	usb_endpoint_descriptor_t *ed;
	char *devinfop;
	struct ifnet *ifp;
	struct mii_data *mii;
	u_char eaddr[ETHER_ADDR_LEN];
	int i, s;

	sc->sc_dev = self;

	aprint_naive("\n");
	aprint_normal("\n");

	devinfop = usbd_devinfo_alloc(dev, 0);
	aprint_normal_dev(self, "%s\n", devinfop);
	usbd_devinfo_free(devinfop);

	/* Move the device into the configured state. */
	err = usbd_set_config_no(dev, URL_CONFIG_NO, 1);
	if (err) {
		aprint_error_dev(self, "failed to set configuration"
		    ", err=%s\n", usbd_errstr(err));
		goto bad;
	}

	usb_init_task(&sc->sc_tick_task, url_tick_task, sc, 0);
	rw_init(&sc->sc_mii_rwlock);
	usb_init_task(&sc->sc_stop_task, (void (*)(void *))url_stop_task, sc, 0);

	/* get control interface */
	err = usbd_device2interface_handle(dev, URL_IFACE_INDEX, &iface);
	if (err) {
		aprint_error_dev(self, "failed to get interface, err=%s\n",
		       usbd_errstr(err));
		goto bad;
	}

	sc->sc_udev = dev;
	sc->sc_ctl_iface = iface;
	sc->sc_flags = url_lookup(uaa->vendor, uaa->product)->url_flags;

	/* get interface descriptor */
	id = usbd_get_interface_descriptor(sc->sc_ctl_iface);

	/* find endpoints */
	sc->sc_bulkin_no = sc->sc_bulkout_no = sc->sc_intrin_no = -1;
	for (i = 0; i < id->bNumEndpoints; i++) {
		ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
		if (ed == NULL) {
			aprint_error_dev(self,
			    "couldn't get endpoint %d\n", i);
			goto bad;
		}
		if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
		    UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
			sc->sc_bulkin_no = ed->bEndpointAddress; /* RX */
		else if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK &&
			 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT)
			sc->sc_bulkout_no = ed->bEndpointAddress; /* TX */
		else if ((ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT &&
			 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
			sc->sc_intrin_no = ed->bEndpointAddress; /* Status */
	}

	if (sc->sc_bulkin_no == -1 || sc->sc_bulkout_no == -1 ||
	    sc->sc_intrin_no == -1) {
		aprint_error_dev(self, "missing endpoint\n");
		goto bad;
	}

	s = splnet();

	/* reset the adapter */
	url_reset(sc);

	/* Get Ethernet Address */
	err = url_mem(sc, URL_CMD_READMEM, URL_IDR0, (void *)eaddr,
		      ETHER_ADDR_LEN);
	if (err) {
		aprint_error_dev(self, "read MAC address failed\n");
		splx(s);
		goto bad;
	}

	/* Print Ethernet Address */
	aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr));

	/* initialize interface information */
	ifp = GET_IFP(sc);
	ifp->if_softc = sc;
	ifp->if_mtu = ETHERMTU;
//.........这里部分代码省略.........

static void
ohci_pci_attach(device_t parent, device_t self, void *aux)
{
	struct ohci_pci_softc *sc = device_private(self);
	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
	pci_chipset_tag_t pc = pa->pa_pc;
	pcitag_t tag = pa->pa_tag;
	char const *intrstr;
	pci_intr_handle_t ih;
	pcireg_t csr;
	usbd_status r;
	const char *vendor;
	char intrbuf[PCI_INTRSTR_LEN];

	sc->sc.sc_dev = self;
	sc->sc.sc_bus.hci_private = sc;

	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NS &&
	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_NS_USB) {
		sc->sc.sc_flags = OHCIF_SUPERIO;
	}

	pci_aprint_devinfo(pa, "USB Controller");

	/* check if memory space access is enabled */
	csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
#ifdef DEBUG
	printf("csr: %08x\n", csr);
#endif
	if ((csr & PCI_COMMAND_MEM_ENABLE) == 0) {
		aprint_error_dev(self, "memory access is disabled\n");
		return;
	}

	/* Map I/O registers */
	if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
			   &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
		sc->sc.sc_size = 0;
		aprint_error_dev(self, "can't map mem space\n");
		return;
	}

	/* Disable interrupts, so we don't get any spurious ones. */
	bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
			  OHCI_ALL_INTRS);

	sc->sc_pc = pc;
	sc->sc_tag = tag;
	sc->sc.sc_bus.dmatag = pa->pa_dmat;

	/* Enable the device. */
	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,
		       csr | PCI_COMMAND_MASTER_ENABLE);

	/* Map and establish the interrupt. */
	if (pci_intr_map(pa, &ih)) {
		aprint_error_dev(self, "couldn't map interrupt\n");
		goto fail;
	}

	/*
	 * Allocate IRQ
	 */
	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
	sc->sc_ih = pci_intr_establish(pc, ih, IPL_SCHED, ohci_intr, sc);
	if (sc->sc_ih == NULL) {
		aprint_error_dev(self, "couldn't establish interrupt");
		if (intrstr != NULL)
			aprint_error(" at %s", intrstr);
		aprint_error("\n");
		goto fail;
	}
	aprint_normal_dev(self, "interrupting at %s\n", intrstr);

	/* Figure out vendor for root hub descriptor. */
	vendor = pci_findvendor(pa->pa_id);
	sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id);
	if (vendor)
		strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
	else
		snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
		    "vendor 0x%04x", PCI_VENDOR(pa->pa_id));

	r = ohci_init(&sc->sc);
	if (r != USBD_NORMAL_COMPLETION) {
		aprint_error_dev(self, "init failed, error=%d\n", r);
		goto fail;
	}

#if NEHCI > 0
	usb_pci_add(&sc->sc_pci, pa, self);
#endif

	if (!pmf_device_register1(self, ohci_suspend, ohci_resume,
	                          ohci_shutdown))
		aprint_error_dev(self, "couldn't establish power handler\n");

	/* Attach usb device. */
	sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
	return;
//.........这里部分代码省略.........

static void
sf_pci_attach(device_t parent, device_t self, void *aux)
{
	struct sf_pci_softc *psc = device_private(self);
	struct sf_softc *sc = &psc->sc_starfire;
	struct pci_attach_args *pa = aux;
	pci_intr_handle_t ih;
	const char *intrstr = NULL;
	const struct sf_pci_product *spp;
	bus_space_tag_t iot, memt;
	bus_space_handle_t ioh, memh;
	pcireg_t reg;
	int error, ioh_valid, memh_valid;
	char intrbuf[PCI_INTRSTR_LEN];

	sc->sc_dev = self;
	spp = sf_pci_lookup(pa);
	if (spp == NULL) {
		printf("\n");
		panic("sf_pci_attach: impossible");
	}

	printf(": %s, rev. %d\n", spp->spp_name, PCI_REVISION(pa->pa_class));

	/* power up chip */
	if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, NULL)) &&
	    error != EOPNOTSUPP) {
		aprint_error_dev(self, "cannot activate %d\n", error);
		return;
	}

	/*
	 * Map the device.
	 */
	reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, SF_PCI_MEMBA);
	switch (reg) {
	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
	case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
		memh_valid = (pci_mapreg_map(pa, SF_PCI_MEMBA,
		    reg, 0, &memt, &memh, NULL, NULL) == 0);
		break;
	default:
		memh_valid = 0;
	}

	ioh_valid = (pci_mapreg_map(pa,
	    (reg == (PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT)) ?
		SF_PCI_IOBA : SF_PCI_IOBA - 0x04,
	    PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, NULL) == 0);

	if (memh_valid) {
		sc->sc_st = memt;
		sc->sc_sh = memh;
		sc->sc_iomapped = 0;
	} else if (ioh_valid) {
		sc->sc_st = iot;
		sc->sc_sh = ioh;
		sc->sc_iomapped = 1;
	} else {
		aprint_error_dev(self, "unable to map device registers\n");
		return;
	}

	sc->sc_dmat = pa->pa_dmat;

	/* Make sure bus mastering is enabled. */
	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
	    pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
	    PCI_COMMAND_MASTER_ENABLE);

	/*
	 * Map and establish our interrupt.
	 */
	if (pci_intr_map(pa, &ih)) {
		aprint_error_dev(self, "unable to map interrupt\n");
		return;
	}
	intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));
	psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, sf_intr, sc);
	if (psc->sc_ih == NULL) {
		aprint_error_dev(self, "unable to establish interrupt");
		if (intrstr != NULL)
			aprint_error(" at %s", intrstr);
		aprint_error("\n");
		return;
	}
	aprint_normal_dev(self, "interrupting at %s\n", intrstr);

	/*
	 * Finish off the attach.
	 */
	sf_attach(sc);
}

void
tap_attach(device_t parent, device_t self, void *aux)
{
	struct tap_softc *sc = device_private(self);
	struct ifnet *ifp;
#if defined(COMPAT_40) || defined(MODULAR)
	const struct sysctlnode *node;
	int error;
#endif
	uint8_t enaddr[ETHER_ADDR_LEN] =
	    { 0xf2, 0x0b, 0xa4, 0xff, 0xff, 0xff };
	char enaddrstr[3 * ETHER_ADDR_LEN];
	struct timeval tv;
	uint32_t ui;

	sc->sc_dev = self;
	sc->sc_sih = softint_establish(SOFTINT_CLOCK, tap_softintr, sc);
	getnanotime(&sc->sc_btime);
	sc->sc_atime = sc->sc_mtime = sc->sc_btime;

	if (!pmf_device_register(self, NULL, NULL))
		aprint_error_dev(self, "couldn't establish power handler\n");

	/*
	 * In order to obtain unique initial Ethernet address on a host,
	 * do some randomisation using the current uptime.  It's not meant
	 * for anything but avoiding hard-coding an address.
	 */
	getmicrouptime(&tv);
	ui = (tv.tv_sec ^ tv.tv_usec) & 0xffffff;
	memcpy(enaddr+3, (uint8_t *)&ui, 3);

	aprint_verbose_dev(self, "Ethernet address %s\n",
	    ether_snprintf(enaddrstr, sizeof(enaddrstr), enaddr));

	/*
	 * Why 1000baseT? Why not? You can add more.
	 *
	 * Note that there are 3 steps: init, one or several additions to
	 * list of supported media, and in the end, the selection of one
	 * of them.
	 */
	ifmedia_init(&sc->sc_im, 0, tap_mediachange, tap_mediastatus);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_1000_T, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_100_TX, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_10_T, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
	ifmedia_add(&sc->sc_im, IFM_ETHER|IFM_AUTO, 0, NULL);
	ifmedia_set(&sc->sc_im, IFM_ETHER|IFM_AUTO);

	/*
	 * One should note that an interface must do multicast in order
	 * to support IPv6.
	 */
	ifp = &sc->sc_ec.ec_if;
	strcpy(ifp->if_xname, device_xname(self));
	ifp->if_softc	= sc;
	ifp->if_flags	= IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
	ifp->if_ioctl	= tap_ioctl;
	ifp->if_start	= tap_start;
	ifp->if_stop	= tap_stop;
	ifp->if_init	= tap_init;
	IFQ_SET_READY(&ifp->if_snd);

	sc->sc_ec.ec_capabilities = ETHERCAP_VLAN_MTU | ETHERCAP_JUMBO_MTU;

	/* Those steps are mandatory for an Ethernet driver, the fisrt call
	 * being common to all network interface drivers. */
	if_attach(ifp);
	ether_ifattach(ifp, enaddr);

	sc->sc_flags = 0;

#if defined(COMPAT_40) || defined(MODULAR)
	/*
	 * Add a sysctl node for that interface.
	 *
	 * The pointer transmitted is not a string, but instead a pointer to
	 * the softc structure, which we can use to build the string value on
	 * the fly in the helper function of the node.  See the comments for
	 * tap_sysctl_handler for details.
	 *
	 * Usually sysctl_createv is called with CTL_CREATE as the before-last
	 * component.  However, we can allocate a number ourselves, as we are
	 * the only consumer of the net.link.<iface> node.  In this case, the
	 * unit number is conveniently used to number the node.  CTL_CREATE
	 * would just work, too.
	 */
	if ((error = sysctl_createv(NULL, 0, NULL,
	    &node, CTLFLAG_READWRITE,
	    CTLTYPE_STRING, device_xname(self), NULL,
	    tap_sysctl_handler, 0, sc, 18,
	    CTL_NET, AF_LINK, tap_node, device_unit(sc->sc_dev),
	    CTL_EOL)) != 0)
		aprint_error_dev(self, "sysctl_createv returned %d, ignoring\n",
		    error);
#endif

//.........这里部分代码省略.........

void
atzscattach(device_t parent, device_t self, void *aux)
{
	volatile struct sdmac *rp;
	struct sbic_softc *sc = device_private(self);
	struct zbus_args *zap;
	struct scsipi_adapter *adapt = &sc->sc_adapter;
	struct scsipi_channel *chan = &sc->sc_channel;

	zap = aux;

	sc->sc_dev = self;
	sc->sc_cregs = rp = zap->va;
	/*
	 * disable ints and reset bank register
	 */
	rp->CNTR = CNTR_PDMD;
	amiga_membarrier();
	rp->DAWR = DAWR_ATZSC;
	amiga_membarrier();
	sc->sc_enintr = atzsc_enintr;
	sc->sc_dmago = atzsc_dmago;
	sc->sc_dmanext = atzsc_dmanext;
	sc->sc_dmastop = atzsc_dmastop;
	sc->sc_dmacmd = 0;

	/*
	 * only 24 bit mem.
	 */
	sc->sc_flags |= SBICF_BADDMA;
	sc->sc_dmamask = ~0x00ffffff;
#if 0
	/*
	 * If the users kva space is not ztwo try and allocate a bounce buffer.
	 * XXX this needs to change if we move to multiple memory segments.
	 */
	if (kvtop(sc) & sc->sc_dmamask) {
		sc->sc_dmabuffer = (char *)alloc_z2mem(MAXPHYS * 8); /* XXX */
		if (isztwomem(sc->sc_dmabuffer))
			printf(" bounce pa 0x%x", kvtop(sc->sc_dmabuffer));
		else if (sc->sc_dmabuffer)
			printf(" bounce pa 0x%x",
			    PREP_DMA_MEM(sc->sc_dmabuffer));
	}
#endif
	sc->sc_sbic.sbic_asr_p = (volatile unsigned char *)rp + 0x91;
	sc->sc_sbic.sbic_value_p = (volatile unsigned char *)rp + 0x93;

	sc->sc_clkfreq = sbic_clock_override ? sbic_clock_override : 77;

	printf(": dmamask 0x%lx\n", ~sc->sc_dmamask);

	/*
	 * Fill in the scsipi_adapter.
	 */
	memset(adapt, 0, sizeof(*adapt));
	adapt->adapt_dev = self;
	adapt->adapt_nchannels = 1;
	adapt->adapt_openings = 7;
	adapt->adapt_max_periph = 1;
	adapt->adapt_request = sbic_scsipi_request;
	adapt->adapt_minphys = sbic_minphys;

	/*
	 * Fill in the scsipi_channel.
	 */
	memset(chan, 0, sizeof(*chan));
	chan->chan_adapter = adapt;
	chan->chan_bustype = &scsi_bustype;
	chan->chan_channel = 0;
	chan->chan_ntargets = 8;
	chan->chan_nluns = 8;
	chan->chan_id = 7;

	sbicinit(sc);

	sc->sc_isr.isr_intr = atzsc_dmaintr;
	sc->sc_isr.isr_arg = sc;
	sc->sc_isr.isr_ipl = 2;
	add_isr (&sc->sc_isr);

	/*
	 * attach all scsi units on us
	 */
	config_found(self, chan, scsiprint);
}

void
pciattach(device_t parent, device_t self, void *aux)
{
	struct pcibus_attach_args *pba = aux;
	struct pci_softc *sc = device_private(self);
	int io_enabled, mem_enabled, mrl_enabled, mrm_enabled, mwi_enabled;
	const char *sep = "";
	static const int wildcard[PCICF_NLOCS] = {
		PCICF_DEV_DEFAULT, PCICF_FUNCTION_DEFAULT
	};

	sc->sc_dev = self;

	pci_attach_hook(parent, self, pba);

	aprint_naive("\n");
	aprint_normal("\n");

	io_enabled = (pba->pba_flags & PCI_FLAGS_IO_OKAY);
	mem_enabled = (pba->pba_flags & PCI_FLAGS_MEM_OKAY);
	mrl_enabled = (pba->pba_flags & PCI_FLAGS_MRL_OKAY);
	mrm_enabled = (pba->pba_flags & PCI_FLAGS_MRM_OKAY);
	mwi_enabled = (pba->pba_flags & PCI_FLAGS_MWI_OKAY);

	if (io_enabled == 0 && mem_enabled == 0) {
		aprint_error_dev(self, "no spaces enabled!\n");
		goto fail;
	}

#define	PRINT(str)							\
do {									\
	aprint_verbose("%s%s", sep, str);				\
	sep = ", ";							\
} while (/*CONSTCOND*/0)

	aprint_verbose_dev(self, "");

	if (io_enabled)
		PRINT("i/o space");
	if (mem_enabled)
		PRINT("memory space");
	aprint_verbose(" enabled");

	if (mrl_enabled || mrm_enabled || mwi_enabled) {
		if (mrl_enabled)
			PRINT("rd/line");
		if (mrm_enabled)
			PRINT("rd/mult");
		if (mwi_enabled)
			PRINT("wr/inv");
		aprint_verbose(" ok");
	}

	aprint_verbose("\n");

#undef PRINT

	sc->sc_iot = pba->pba_iot;
	sc->sc_memt = pba->pba_memt;
	sc->sc_dmat = pba->pba_dmat;
	sc->sc_dmat64 = pba->pba_dmat64;
	sc->sc_pc = pba->pba_pc;
	sc->sc_bus = pba->pba_bus;
	sc->sc_bridgetag = pba->pba_bridgetag;
	sc->sc_maxndevs = pci_bus_maxdevs(pba->pba_pc, pba->pba_bus);
	sc->sc_intrswiz = pba->pba_intrswiz;
	sc->sc_intrtag = pba->pba_intrtag;
	sc->sc_flags = pba->pba_flags;

	device_pmf_driver_set_child_register(sc->sc_dev, pci_child_register);

	pcirescan(sc->sc_dev, "pci", wildcard);

fail:
	if (!pmf_device_register(self, NULL, NULL))
		aprint_error_dev(self, "couldn't establish power handler\n");
}

static void
pckbc_acpi_finish_attach(device_t dv)
{

	pckbc_attach(device_private(dv));
}

static void
pckbc_acpi_attach(device_t parent, device_t self, void *aux)
{
	struct pckbc_acpi_softc *psc = device_private(self);
	struct pckbc_softc *sc = &psc->sc_pckbc;
	struct pckbc_internal *t;
	struct acpi_attach_args *aa = aux;
	bus_space_handle_t ioh_d, ioh_c;
	pckbc_slot_t peer;
	struct acpi_resources res;
	struct acpi_io *io0, *io1, *ioswap;
	struct acpi_irq *irq;
	ACPI_STATUS rv;

	sc->sc_dv = self;
	psc->sc_ic = aa->aa_ic;

	if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_kbd)) {
		psc->sc_slot = PCKBC_KBD_SLOT;
		peer = PCKBC_AUX_SLOT;
	} else if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_ms)) {
		psc->sc_slot = PCKBC_AUX_SLOT;
		peer = PCKBC_KBD_SLOT;
	} else {
		aprint_error(": unknown port!\n");
		panic("pckbc_acpi_attach: impossible");
	}

	aprint_naive("\n");
	aprint_normal(": %s port\n", pckbc_slot_names[psc->sc_slot]);

	/* parse resources */
	rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS",
	    &res, &acpi_resource_parse_ops_default);
	if (ACPI_FAILURE(rv))
		return;

	/* find our IRQ */
	irq = acpi_res_irq(&res, 0);
	if (irq == NULL) {
		aprint_error_dev(self, "unable to find irq resource\n");
		goto out;
	}
	psc->sc_irq = irq->ar_irq;
	psc->sc_ist = (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL;

	if (psc->sc_slot == PCKBC_KBD_SLOT)
		first = psc;

	if ((!first || !first->sc_pckbc.id) &&
	    (psc->sc_slot == PCKBC_KBD_SLOT)) {

		io0 = acpi_res_io(&res, 0);
		io1 = acpi_res_io(&res, 1);
		if (io0 == NULL || io1 == NULL) {
			aprint_error_dev(self,
			    "unable to find i/o resources\n");
			goto out;
		}

		/*
		 * JDM: Some firmware doesn't report resources in the order we
		 * expect; sort IO resources here (lowest first)
		 */
		if (io0->ar_base > io1->ar_base) {
			ioswap = io0;
			io0 = io1;
			io1 = ioswap;
		}

		if (pckbc_is_console(aa->aa_iot, io0->ar_base)) {
			t = &pckbc_consdata;
			ioh_d = t->t_ioh_d;
			ioh_c = t->t_ioh_c;
			pckbc_console_attached = 1;
			/* t->t_cmdbyte was initialized by cnattach */
		} else {
			if (bus_space_map(aa->aa_iot, io0->ar_base,
					  io0->ar_length, 0, &ioh_d) ||
			    bus_space_map(aa->aa_iot, io1->ar_base,
					  io1->ar_length, 0, &ioh_c))
				panic("pckbc_acpi_attach: couldn't map");

			t = malloc(sizeof(struct pckbc_internal),
			    M_DEVBUF, M_WAITOK|M_ZERO);
			t->t_iot = aa->aa_iot;
			t->t_ioh_d = ioh_d;
			t->t_ioh_c = ioh_c;
			t->t_addr = io0->ar_base;
			t->t_cmdbyte = KC8_CPU;	/* Enable ports */
			callout_init(&t->t_cleanup, 0);
		}

		t->t_sc = &first->sc_pckbc;
		first->sc_pckbc.id = t;

		if (!pmf_device_register(self, NULL, pckbc_resume))
			aprint_error_dev(self,
			    "couldn't establish power handler\n");

//.........这里部分代码省略.........

void
wdc_buddha_attach(device_t parent, device_t self, void *aux)
{
	struct wdc_buddha_softc *sc;
	struct zbus_args *zap;
	int nchannels;
	int ch;

	sc = device_private(self);
	sc->sc_wdcdev.sc_atac.atac_dev = self;
	zap = aux;

	sc->ba = zap->va;

	sc->sc_iot.base = (bus_addr_t)sc->ba;
	sc->sc_iot.absm = &amiga_bus_stride_4swap;

	nchannels = 2;
	if (zap->prodid == 42) {
		aprint_normal(": Catweasel Z2\n");
		nchannels = 3;
	} else if (zap->serno == 0) 
		aprint_normal(": Buddha\n");
	else
		aprint_normal(": Buddha Flash\n");

	/* XXX pio mode setting not implemented yet. */
	sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16;
	sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
	sc->sc_wdcdev.sc_atac.atac_nchannels = nchannels;

	wdc_allocate_regs(&sc->sc_wdcdev);

	for (ch = 0; ch < nchannels; ch++) {
		struct ata_channel *cp;
		struct wdc_regs *wdr;
		int i;

		cp = &sc->channels[ch];
		sc->wdc_chanarray[ch] = cp;

		cp->ch_channel = ch;
		cp->ch_atac = &sc->sc_wdcdev.sc_atac;
		cp->ch_queue =
		    malloc(sizeof(struct ata_queue), M_DEVBUF, M_NOWAIT);
		if (cp->ch_queue == NULL) {
			aprint_error_dev(self,
			    "can't allocate memory for command queue\n");
			return;
		}
		cp->ch_ndrive = 2;

		/*
		 * XXX According to the Buddha docs, we should use a method
		 * array that adds 0x40 to the address for byte accesses, to
		 * get the slow timing for command accesses, and the 0x00 
		 * offset for the word (fast) accesses. This will be
		 * reconsidered when implementing setting the timing.
		 *
		 * XXX We also could consider to abuse the 32bit capability, or
		 * 32bit accesses to the words (which will read in two words)
		 * for better performance.
		 *		-is
		 */
		wdr = CHAN_TO_WDC_REGS(cp);

		wdr->cmd_iot = &sc->sc_iot;
		if (bus_space_map(wdr->cmd_iot, 0x210+ch*0x80, 8, 0,
		    &wdr->cmd_baseioh)) {
			aprint_error_dev(self, "couldn't map cmd registers\n");
			return;
		}

		wdr->ctl_iot = &sc->sc_iot;
		if (bus_space_map(wdr->ctl_iot, 0x250+ch*0x80, 2, 0,
		    &wdr->ctl_ioh)) {
			bus_space_unmap(wdr->cmd_iot, wdr->cmd_baseioh, 8);
			aprint_error_dev(self, "couldn't map ctl registers\n");
			return;
		}

		for (i = 0; i < WDC_NREG; i++) {
			if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh,
			    i, i == 0 ? 4 : 1, &wdr->cmd_iohs[i]) != 0) {
				aprint_error_dev(self,
				    "couldn't subregion cmd regs\n");
				return;
			}
		}

		wdc_init_shadow_regs(cp);
		wdcattach(cp);
	}

	sc->sc_isr.isr_intr = wdc_buddha_intr;
	sc->sc_isr.isr_arg = sc;
	sc->sc_isr.isr_ipl = 2;
	add_isr (&sc->sc_isr);
	sc->ba[0xfc0] = 0;	/* enable interrupts */
//.........这里部分代码省略.........

static void
uninorth_attach(device_t parent, device_t self, void *aux)
{
	struct uninorth_softc *sc = device_private(self);
	pci_chipset_tag_t pc = &sc->sc_pc;
	struct confargs *ca = aux;
	struct pcibus_attach_args pba;
	int len, child, node = ca->ca_node;
	uint32_t reg[2], busrange[2];
	char compat[32];
	int ver;
	struct ranges {
		uint32_t pci_hi, pci_mid, pci_lo;
		uint32_t host;
		uint32_t size_hi, size_lo;
	} ranges[6], *rp = ranges;

	printf("\n");
	sc->sc_dev = self;

	memset(compat, 0, sizeof(compat));
	OF_getprop(ca->ca_node, "compatible", compat, sizeof(compat));
	if (strcmp(compat, "u3-agp") == 0)
		ver = 3;
	else if (strcmp(compat, "u4-pcie") == 0)
		ver = 4;
	else
		ver = 0;

	/* UniNorth address */
	if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
		return;

	/* PCI bus number */
	if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8)
		return;

	memset(&sc->sc_iot, 0, sizeof(sc->sc_iot));

	/* find i/o tag */
	len = OF_getprop(node, "ranges", ranges, sizeof(ranges));
	if (len == -1)
		return;
	while (len >= sizeof(ranges[0])) {
		if ((rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) ==
		     OFW_PCI_PHYS_HI_SPACE_IO) {
			sc->sc_iot.pbs_base = rp->host;
			sc->sc_iot.pbs_limit = rp->host + rp->size_lo;
			break;
		}
		len -= sizeof(ranges[0]);
		rp++;
	}

	/* XXX enable gmac ethernet */
	for (child = OF_child(node); child; child = OF_peer(child)) {
		volatile int *gmac_gbclock_en = (void *)0xf8000020;

		memset(compat, 0, sizeof(compat));
		OF_getprop(child, "compatible", compat, sizeof(compat));
		if (strcmp(compat, "gmac") == 0)
			*gmac_gbclock_en |= 0x02;
	}

	sc->sc_iot.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_IO_TYPE;
	sc->sc_iot.pbs_offset = 0;
	if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_IO, node, &sc->sc_iot,
	    "uninorth io-space") != 0)
		panic("Can't init uninorth io tag");

	memset(&sc->sc_memt, 0, sizeof(sc->sc_memt));
	sc->sc_memt.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE;
	sc->sc_memt.pbs_base = 0x00000000;
	if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_MEM, node, &sc->sc_memt,
	    "uninorth mem-space") != 0)
		panic("Can't init uninorth mem tag");

	macppc_pci_get_chipset_tag(pc);
	pc->pc_node = node;
	pc->pc_bus = busrange[0];
	pc->pc_iot = &sc->sc_iot;
	pc->pc_memt = &sc->sc_memt;

	if (ver < 3) {
		pc->pc_addr = mapiodev(reg[0] + 0x800000, 4, false);
		pc->pc_data = mapiodev(reg[0] + 0xc00000, 8, false);
		pc->pc_conf_read = uninorth_conf_read;
		pc->pc_conf_write = uninorth_conf_write;
	} else {
		pc->pc_addr = mapiodev(reg[1] + 0x800000, 4, false);
		pc->pc_data = mapiodev(reg[1] + 0xc00000, 8, false);
		pc->pc_conf_read = uninorth_conf_read_v3;
		pc->pc_conf_write = uninorth_conf_write_v3;
	}

	memset(&pba, 0, sizeof(pba));
	pba.pba_memt = pc->pc_memt;
	pba.pba_iot = pc->pc_iot;
	pba.pba_dmat = &pci_bus_dma_tag;
	pba.pba_dmat64 = NULL;
//.........这里部分代码省略.........

static void
sony_acpi_attach(device_t parent, device_t self, void *aux)
{
	struct sony_acpi_softc *sc = device_private(self);
	struct acpi_attach_args *aa = aux;
	ACPI_STATUS rv;
	int i;

	aprint_naive(": Sony Miscellaneous Controller\n");
	aprint_normal(": Sony Miscellaneous Controller\n");

	sc->sc_node = aa->aa_node;
	sc->sc_dev = self;

	rv = AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 100,
	    sony_acpi_find_pic, sc, NULL);
	if (ACPI_FAILURE(rv))
		aprint_error_dev(self, "couldn't walk namespace: %s\n",
		    AcpiFormatException(rv));

	/*
	 * If we don't find an SNY6001 device, assume that we need the
	 * Fn key initialization sequence.
	 */
	if (sc->sc_has_pic == false)
		sc->sc_quirks |= SONY_ACPI_QUIRK_FNINIT;

	sony_acpi_quirk_setup(sc);

	/* Configure suspend button and hotkeys */
	sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_name = device_xname(self);
	sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP;
	sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_name =
	    PSWITCH_HK_DISPLAY_CYCLE;
	sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_type = PSWITCH_TYPE_HOTKEY;
	sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_name = PSWITCH_HK_ZOOM_BUTTON;
	sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_type = PSWITCH_TYPE_HOTKEY;
	sc->sc_smpsw_valid = 1;

	for (i = 0; i < SONY_PSW_LAST; i++)
		if (sysmon_pswitch_register(&sc->sc_smpsw[i]) != 0) {
			aprint_error_dev(self, 
			    "couldn't register %s with sysmon\n",
			    sc->sc_smpsw[i].smpsw_name);
			sc->sc_smpsw_valid = 0;
		}

	/* Install notify handler */
	rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle,
	    ACPI_DEVICE_NOTIFY, sony_acpi_notify_handler, self);
	if (ACPI_FAILURE(rv))
		aprint_error_dev(self,
		    "couldn't install notify handler (%d)\n", rv);

	/* Install sysctl handler */
	rv = AcpiWalkNamespace(ACPI_TYPE_METHOD,
	    sc->sc_node->ad_handle, 1, sony_walk_cb, sc, NULL);
#ifdef DIAGNOSTIC
	if (ACPI_FAILURE(rv))
		aprint_error_dev(self, "Cannot walk ACPI namespace (%d)\n",
		    rv);
#endif

	if (!pmf_device_register(self, sony_acpi_suspend, sony_acpi_resume))
		aprint_error_dev(self, "couldn't establish power handler\n");

	if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_UP,
				 sony_acpi_brightness_up, true))
		aprint_error_dev(self, "couldn't register BRIGHTNESS UP handler\n");

	if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_DOWN,
				 sony_acpi_brightness_down, true))
		aprint_error_dev(self, "couldn't register BRIGHTNESS DOWN handler\n");
}

Static void
url_int_miibus_writereg(device_t dev, int phy, int reg, int data)
{
	struct url_softc *sc;

	if (dev == NULL)
		return;

	sc = device_private(dev);

	DPRINTFN(0xff, ("%s: %s: enter, phy=%d reg=0x%04x data=0x%04x\n",
		 device_xname(sc->sc_dev), __func__, phy, reg, data));

	if (sc->sc_dying) {
#ifdef DIAGNOSTIC
		printf("%s: %s: dying\n", device_xname(sc->sc_dev),
		       __func__);
#endif
		return;
	}

	/* XXX: one PHY only for the RTL8150 internal PHY */
	if (phy != 0) {
		DPRINTFN(0xff, ("%s: %s: phy=%d is not supported\n",
			 device_xname(sc->sc_dev), __func__, phy));
		return;
	}

	url_lock_mii(sc);

	switch (reg) {
	case MII_BMCR:		/* Control Register */
		reg = URL_BMCR;
		break;
	case MII_BMSR:		/* Status Register */
		reg = URL_BMSR;
		break;
	case MII_PHYIDR1:
	case MII_PHYIDR2:
		goto W_DONE;
		break;
	case MII_ANAR:		/* Autonegotiation advertisement */
		reg = URL_ANAR;
		break;
	case MII_ANLPAR:	/* Autonegotiation link partner abilities */
		reg = URL_ANLP;
		break;
	case URLPHY_MSR:	/* Media Status Register */
		reg = URL_MSR;
		break;
	default:
		printf("%s: %s: bad register %04x\n",
		       device_xname(sc->sc_dev), __func__, reg);
		goto W_DONE;
		break;
	}

	if (reg == URL_MSR)
		url_csr_write_1(sc, reg, data);
	else
		url_csr_write_2(sc, reg, data);
 W_DONE:

	url_unlock_mii(sc);
	return;
}