static int
fimd_attach(device_t dev)
{
	struct panel_info panel;
	struct fimd_softc *sc;
	device_t gpio_dev;
	int reg;

	sc = device_get_softc(dev);
	sc->dev = dev;

	if (bus_alloc_resources(dev, fimd_spec, sc->res)) {
		device_printf(dev, "could not allocate resources\n");
		return (ENXIO);
	}

	/* Memory interface */
	sc->bst = rman_get_bustag(sc->res[0]);
	sc->bsh = rman_get_bushandle(sc->res[0]);
	sc->bst_disp = rman_get_bustag(sc->res[1]);
	sc->bsh_disp = rman_get_bushandle(sc->res[1]);
	sc->bst_sysreg = rman_get_bustag(sc->res[2]);
	sc->bsh_sysreg = rman_get_bushandle(sc->res[2]);

	if (get_panel_info(sc, &panel)) {
		device_printf(dev, "Can't get panel info\n");
		return (ENXIO);
	}

	panel.fixvclk = 0;
	panel.ivclk = 0;
	panel.clkval_f = 2;

	sc->panel = &panel;

	/* Get the GPIO device, we need this to give power to USB */
	gpio_dev = devclass_get_device(devclass_find("gpio"), 0);
	if (gpio_dev == NULL) {
		/* TODO */
	}

	reg = bus_space_read_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214);
	reg |= FIMDBYPASS_DISP1;
	bus_space_write_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214, reg);

	sc->sc_info.fb_width = panel.width;
	sc->sc_info.fb_height = panel.height;
	sc->sc_info.fb_stride = sc->sc_info.fb_width * 2;
	sc->sc_info.fb_bpp = sc->sc_info.fb_depth = 16;
	sc->sc_info.fb_size = sc->sc_info.fb_height * sc->sc_info.fb_stride;
	sc->sc_info.fb_vbase = (intptr_t)kmem_alloc_contig(kernel_arena,
	    sc->sc_info.fb_size, M_ZERO, 0, ~0, PAGE_SIZE, 0, VM_MEMATTR_UNCACHEABLE);
	sc->sc_info.fb_pbase = (intptr_t)vtophys(sc->sc_info.fb_vbase);

#if 0
	printf("%dx%d [%d]\n", sc->sc_info.fb_width, sc->sc_info.fb_height,
	    sc->sc_info.fb_stride);
	printf("pbase == 0x%08x\n", sc->sc_info.fb_pbase);
#endif

	memset((int8_t *)sc->sc_info.fb_vbase, 0x0, sc->sc_info.fb_size);

	fimd_init(sc);

	sc->sc_info.fb_name = device_get_nameunit(dev);

	/* Ask newbus to attach framebuffer device to me. */
	sc->sc_fbd = device_add_child(dev, "fbd", device_get_unit(dev));
	if (sc->sc_fbd == NULL)
		device_printf(dev, "Can't attach fbd device\n");

	if (device_probe_and_attach(sc->sc_fbd) != 0) {
		device_printf(sc->dev, "Failed to attach fbd device\n");
	}

	return (0);
}

//.........这里部分代码省略.........
    TWS_TRACE_DEBUG(sc, "bar2 ", sc->mfa_base, 0);
#endif

    /* allocate MMIO register space */ 
    sc->reg_res_id = TWS_PCI_BAR1; /* BAR1 offset */
    if ((sc->reg_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
                                &(sc->reg_res_id), 0, ~0, 1, RF_ACTIVE))
                                == NULL) {
        tws_log(sc, ALLOC_MEMORY_RES);
        goto attach_fail_1;
    }
    sc->bus_tag = rman_get_bustag(sc->reg_res);
    sc->bus_handle = rman_get_bushandle(sc->reg_res);

#ifndef TWS_PULL_MODE_ENABLE
    /* Allocate bus space for inbound mfa */ 
    sc->mfa_res_id = TWS_PCI_BAR2; /* BAR2 offset */
    if ((sc->mfa_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
                          &(sc->mfa_res_id), 0, ~0, 0x100000, RF_ACTIVE))
                                == NULL) {
        tws_log(sc, ALLOC_MEMORY_RES);
        goto attach_fail_2;
    }
    sc->bus_mfa_tag = rman_get_bustag(sc->mfa_res);
    sc->bus_mfa_handle = rman_get_bushandle(sc->mfa_res);
#endif

    /* Allocate and register our interrupt. */
    sc->intr_type = TWS_INTx; /* default */

    if ( tws_enable_msi )
        sc->intr_type = TWS_MSI;
    if ( tws_setup_irq(sc) == FAILURE ) {
        tws_log(sc, ALLOC_MEMORY_RES);
        goto attach_fail_3;
    }

    /*
     * Create a /dev entry for this device.  The kernel will assign us
     * a major number automatically.  We use the unit number of this
     * device as the minor number and name the character device
     * "tws<unit>".
     */
    sc->tws_cdev = make_dev(&tws_cdevsw, device_get_unit(dev),
        UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, "tws%u", 
        device_get_unit(dev));
    sc->tws_cdev->si_drv1 = sc;

    if ( tws_init(sc) == FAILURE ) {
        tws_log(sc, TWS_INIT_FAILURE);
        goto attach_fail_4;
    }
    if ( tws_init_ctlr(sc) == FAILURE ) {
        tws_log(sc, TWS_CTLR_INIT_FAILURE);
        goto attach_fail_4;
    }
    if ((error = tws_cam_attach(sc))) {
        tws_log(sc, TWS_CAM_ATTACH);
        goto attach_fail_4;
    }
    /* send init complete event */
    mtx_lock(&sc->gen_lock);
    tws_send_event(sc, TWS_INIT_COMPLETE);
    mtx_unlock(&sc->gen_lock);
        
    TWS_TRACE_DEBUG(sc, "attached successfully", 0, sc->device_id);
    return(0);

attach_fail_4:
    tws_teardown_intr(sc);
    destroy_dev(sc->tws_cdev);
attach_fail_3:
    for(i=0;i<sc->irqs;i++) {
        if ( sc->irq_res[i] ){
            if (bus_release_resource(sc->tws_dev,
                 SYS_RES_IRQ, sc->irq_res_id[i], sc->irq_res[i]))
                TWS_TRACE(sc, "bus irq res", 0, 0);
        }
    }
#ifndef TWS_PULL_MODE_ENABLE
attach_fail_2: 
#endif
    if ( sc->mfa_res ){
        if (bus_release_resource(sc->tws_dev,
                 SYS_RES_MEMORY, sc->mfa_res_id, sc->mfa_res))
            TWS_TRACE(sc, "bus release ", 0, sc->mfa_res_id);
    }
    if ( sc->reg_res ){
        if (bus_release_resource(sc->tws_dev,
                 SYS_RES_MEMORY, sc->reg_res_id, sc->reg_res))
            TWS_TRACE(sc, "bus release2 ", 0, sc->reg_res_id);
    }
attach_fail_1:
    mtx_destroy(&sc->q_lock);
    mtx_destroy(&sc->sim_lock);
    mtx_destroy(&sc->gen_lock);
    mtx_destroy(&sc->io_lock);
    sysctl_ctx_free(&sc->tws_clist);
    return (ENXIO);
}

static void
fwe_identify(driver_t *driver, device_t parent)
{
	BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent));
}

static int
mpt_pci_attach(device_t dev)
{
	struct mpt_softc *mpt;
	int		  iqd;
	uint32_t	  data, cmd;
	int		  mpt_io_bar, mpt_mem_bar;

	mpt  = (struct mpt_softc*)device_get_softc(dev);

	switch (pci_get_device(dev)) {
	case MPI_MANUFACTPAGE_DEVICEID_FC909_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC909:
	case MPI_MANUFACTPAGE_DEVICEID_FC919:
	case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC929:
	case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC929X:
	case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC919X:
	case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC949E:
	case MPI_MANUFACTPAGE_DEVICEID_FC949X:
		mpt->is_fc = 1;
		break;
	case MPI_MANUFACTPAGE_DEVID_SAS1078:
	case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB:
		mpt->is_1078 = 1;
		/* FALLTHROUGH */
	case MPI_MANUFACTPAGE_DEVID_SAS1064:
	case MPI_MANUFACTPAGE_DEVID_SAS1064A:
	case MPI_MANUFACTPAGE_DEVID_SAS1064E:
	case MPI_MANUFACTPAGE_DEVID_SAS1066:
	case MPI_MANUFACTPAGE_DEVID_SAS1066E:
	case MPI_MANUFACTPAGE_DEVID_SAS1068:
	case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB:
	case MPI_MANUFACTPAGE_DEVID_SAS1068E:
	case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB:
		mpt->is_sas = 1;
		break;
	default:
		mpt->is_spi = 1;
		break;
	}
	mpt->dev = dev;
	mpt->unit = device_get_unit(dev);
	mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
	mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
	mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
	mpt->verbose = MPT_PRT_NONE;
	mpt->role = MPT_ROLE_NONE;
	mpt->mpt_ini_id = MPT_INI_ID_NONE;
#ifdef __sparc64__
	if (mpt->is_spi)
		mpt->mpt_ini_id = OF_getscsinitid(dev);
#endif
	mpt_set_options(mpt);
	if (mpt->verbose == MPT_PRT_NONE) {
		mpt->verbose = MPT_PRT_WARN;
		/* Print INFO level (if any) if bootverbose is set */
		mpt->verbose += (bootverbose != 0)? 1 : 0;
	}
	/* Make sure memory access decoders are enabled */
	cmd = pci_read_config(dev, PCIR_COMMAND, 2);
	if ((cmd & PCIM_CMD_MEMEN) == 0) {
		device_printf(dev, "Memory accesses disabled");
		return (ENXIO);
	}

	/*
	 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
	 */
	cmd |=
	    PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
	    PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
	pci_write_config(dev, PCIR_COMMAND, cmd, 2);

	/*
	 * Make sure we've disabled the ROM.
	 */
	data = pci_read_config(dev, PCIR_BIOS, 4);
	data &= ~PCIM_BIOS_ENABLE;
	pci_write_config(dev, PCIR_BIOS, data, 4);

	/*
	 * Is this part a dual?
	 * If so, link with our partner (around yet)
	 */
	switch (pci_get_device(dev)) {
	case MPI_MANUFACTPAGE_DEVICEID_FC929:
	case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB:
	case MPI_MANUFACTPAGE_DEVICEID_FC949E:
	case MPI_MANUFACTPAGE_DEVICEID_FC949X:
	case MPI_MANUFACTPAGE_DEVID_53C1030:
	case MPI_MANUFACTPAGE_DEVID_53C1030ZC:
		mpt_link_peer(mpt);
		break;
	default:
		break;
	}
//.........这里部分代码省略.........

int
ex_attach(device_t dev)
{
	struct ex_softc *	sc = device_get_softc(dev);
	struct ifnet *		ifp;
	struct ifmedia *	ifm;
	int			error;
	uint16_t		temp;

	ifp = sc->ifp = if_alloc(IFT_ETHER);
	if (ifp == NULL) {
		device_printf(dev, "can not if_alloc()\n");
		return (ENOSPC);
	}
	/* work out which set of irq <-> internal tables to use */
	if (ex_card_type(sc->enaddr) == CARD_TYPE_EX_10_PLUS) {
		sc->irq2ee = plus_irq2eemap;
		sc->ee2irq = plus_ee2irqmap;
	} else {
		sc->irq2ee = irq2eemap;
		sc->ee2irq = ee2irqmap;
	}

	sc->mem_size = CARD_RAM_SIZE;	/* XXX This should be read from the card itself. */

	/*
	 * Initialize the ifnet structure.
	 */
	ifp->if_softc = sc;
	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
	ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
	ifp->if_start = ex_start;
	ifp->if_ioctl = ex_ioctl;
	ifp->if_init = ex_init;
	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);

	ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts);
	mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
	    MTX_DEF);
	callout_init_mtx(&sc->timer, &sc->lock, 0);

	temp = ex_eeprom_read(sc, EE_W5);
	if (temp & EE_W5_PORT_TPE)
		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
	if (temp & EE_W5_PORT_BNC)
		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_2, 0, NULL);
	if (temp & EE_W5_PORT_AUI)
		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_5, 0, NULL);

	ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
	ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_NONE, 0, NULL);
	ifmedia_set(&sc->ifmedia, ex_get_media(sc));

	ifm = &sc->ifmedia;
	ifm->ifm_media = ifm->ifm_cur->ifm_media;	
	ex_ifmedia_upd(ifp);

	/*
	 * Attach the interface.
	 */
	ether_ifattach(ifp, sc->enaddr);

	error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
				NULL, ex_intr, (void *)sc, &sc->ih);
	if (error) {
		device_printf(dev, "bus_setup_intr() failed!\n");
		ether_ifdetach(ifp);
		mtx_destroy(&sc->lock);
		return (error);
	}

	return(0);
}

static int
atiixp_pci_attach(device_t dev)
{
	struct atiixp_info *sc;
	int i;

	sc = kmalloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc");
	sc->dev = dev;
	/*
	 * Default DMA segments per playback / recording channel
	 */
	sc->dma_segs = ATI_IXP_DMA_CHSEGS;

	pci_set_powerstate(dev, PCI_POWERSTATE_D0);
	pci_enable_busmaster(dev);

	sc->regid = PCIR_BAR(0);
	sc->regtype = SYS_RES_MEMORY;
	sc->reg = bus_alloc_resource_any(dev, sc->regtype, &sc->regid,
								RF_ACTIVE);

	if (!sc->reg) {
		device_printf(dev, "unable to allocate register space\n");
		goto bad;
	}

	sc->st = rman_get_bustag(sc->reg);
	sc->sh = rman_get_bushandle(sc->reg);

	sc->bufsz = pcm_getbuffersize(dev, 4096, ATI_IXP_DEFAULT_BUFSZ, 65536);

	sc->irqid = 0;
	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
						RF_ACTIVE | RF_SHAREABLE);
	if (!sc->irq || 
			snd_setup_intr(dev, sc->irq, INTR_MPSAFE,
						atiixp_intr, sc, &sc->ih)) {
		device_printf(dev, "unable to map interrupt\n");
		goto bad;
	}

	/*
	 * Let the user choose the best DMA segments.
	 */
	 if (resource_int_value(device_get_name(dev),
			device_get_unit(dev), "dma_segs",
			&i) == 0) {
		if (i < ATI_IXP_DMA_CHSEGS_MIN)
			i = ATI_IXP_DMA_CHSEGS_MIN;
		if (i > ATI_IXP_DMA_CHSEGS_MAX)
			i = ATI_IXP_DMA_CHSEGS_MAX;
		sc->dma_segs = i;
	}

	/*
	 * round the value to the nearest ^2
	 */
	i = 0;
	while (sc->dma_segs >> i)
		i++;
	sc->dma_segs = 1 << (i - 1);
	if (sc->dma_segs < ATI_IXP_DMA_CHSEGS_MIN)
		sc->dma_segs = ATI_IXP_DMA_CHSEGS_MIN;
	else if (sc->dma_segs > ATI_IXP_DMA_CHSEGS_MAX)
		sc->dma_segs = ATI_IXP_DMA_CHSEGS_MAX;

	/*
	 * DMA tag for scatter-gather buffers and link pointers
	 */
	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
		/*highaddr*/BUS_SPACE_MAXADDR,
		/*filter*/NULL, /*filterarg*/NULL,
		/*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
		/*flags*/0,
		&sc->parent_dmat) != 0) {
		device_printf(dev, "unable to create dma tag\n");
		goto bad;
	}

	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
		/*highaddr*/BUS_SPACE_MAXADDR,
		/*filter*/NULL, /*filterarg*/NULL,
		/*maxsize*/sc->dma_segs * ATI_IXP_NCHANS *
						sizeof(struct atiixp_dma_op),
		/*nsegments*/1, /*maxsegz*/0x3ffff,
		/*flags*/0,
		&sc->sgd_dmat) != 0) {
		device_printf(dev, "unable to create dma tag\n");
		goto bad;
	}

	if (bus_dmamem_alloc(sc->sgd_dmat, (void **)&sc->sgd_table, 
				BUS_DMA_NOWAIT, &sc->sgd_dmamap) == -1)
		goto bad;

	if (bus_dmamap_load(sc->sgd_dmat, sc->sgd_dmamap, sc->sgd_table, 
				sc->dma_segs * ATI_IXP_NCHANS *
//.........这里部分代码省略.........

int
ahc_pci_map_registers(struct ahc_softc *ahc)
{
	struct	resource *regs;
	u_int	command;
	int	regs_type;
	int	regs_id;
	int	allow_memio;

	command = aic_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
	regs = NULL;
	regs_type = 0;
	regs_id = 0;

	/* Retrieve the per-device 'allow_memio' hint */
	if (resource_int_value(device_get_name(ahc->dev_softc),
			       device_get_unit(ahc->dev_softc),
			       "allow_memio", &allow_memio) != 0) {
		if (bootverbose)
			device_printf(ahc->dev_softc, "Defaulting to MEMIO ");
#ifdef AHC_ALLOW_MEMIO
		if (bootverbose)
			kprintf("on\n");
		allow_memio = 1;
#else
		if (bootverbose)
			kprintf("off\n");
		allow_memio = 0;
#endif
	}

	if ((allow_memio != 0) && (command & PCIM_CMD_MEMEN) != 0) {

		regs_type = SYS_RES_MEMORY;
		regs_id = AHC_PCI_MEMADDR;
		regs = bus_alloc_resource_any(ahc->dev_softc, regs_type,
					      &regs_id, RF_ACTIVE);
		if (regs != NULL) {
			ahc->tag = rman_get_bustag(regs);
			ahc->bsh = rman_get_bushandle(regs);

			/*
			 * Do a quick test to see if memory mapped
			 * I/O is functioning correctly.
			 */
			if (ahc_pci_test_register_access(ahc) != 0) {
				device_printf(ahc->dev_softc,
				       "PCI Device %d:%d:%d failed memory "
				       "mapped test.  Using PIO.\n",
				       aic_get_pci_bus(ahc->dev_softc),
				       aic_get_pci_slot(ahc->dev_softc),
				       aic_get_pci_function(ahc->dev_softc));
				bus_release_resource(ahc->dev_softc, regs_type,
						     regs_id, regs);
				regs = NULL;
			} else {
				command &= ~PCIM_CMD_PORTEN;
				aic_pci_write_config(ahc->dev_softc,
						     PCIR_COMMAND,
						     command, /*bytes*/1);
			}
		}
	}

	if (regs == NULL && (command & PCIM_CMD_PORTEN) != 0) {
		regs_type = SYS_RES_IOPORT;
		regs_id = AHC_PCI_IOADDR;
		regs = bus_alloc_resource_any(ahc->dev_softc, regs_type,
					      &regs_id, RF_ACTIVE);
		if (regs != NULL) {
			ahc->tag = rman_get_bustag(regs);
			ahc->bsh = rman_get_bushandle(regs);
			if (ahc_pci_test_register_access(ahc) != 0) {
				device_printf(ahc->dev_softc,
				       "PCI Device %d:%d:%d failed I/O "
				       "mapped test.\n",
				       aic_get_pci_bus(ahc->dev_softc),
				       aic_get_pci_slot(ahc->dev_softc),
				       aic_get_pci_function(ahc->dev_softc));
				bus_release_resource(ahc->dev_softc, regs_type,
						     regs_id, regs);
				regs = NULL;
			} else {
				command &= ~PCIM_CMD_MEMEN;
				aic_pci_write_config(ahc->dev_softc,
						     PCIR_COMMAND,
						     command, /*bytes*/1);
			}
		}
	}
	if (regs == NULL) {
		device_printf(ahc->dev_softc,
			      "can't allocate register resources\n");
		return (ENOMEM);
	}
	ahc->platform_data->regs_res_type = regs_type;
	ahc->platform_data->regs_res_id = regs_id;
	ahc->platform_data->regs = regs;
	return (0);
}

static int
atse_attach_nexus(device_t dev)
{
	struct atse_softc *sc;
	int error;

	sc = device_get_softc(dev);
	sc->atse_dev = dev;
	sc->atse_unit = device_get_unit(dev);

	/* Get RX and TX IRQ and FIFO information from hints. */
	error = atse_resource_int(dev, "rx_irq", &sc->atse_rx_irq);
	error += atse_resource_long(dev, "rx_maddr", &sc->atse_rx_maddr);
	error += atse_resource_long(dev, "rx_msize", &sc->atse_rx_msize);
	error += atse_resource_long(dev, "rxc_maddr", &sc->atse_rxc_maddr);
	error += atse_resource_long(dev, "rxc_msize", &sc->atse_rxc_msize);
	error += atse_resource_int(dev, "tx_irq", &sc->atse_tx_irq);
	error += atse_resource_long(dev, "tx_maddr", &sc->atse_tx_maddr);
	error += atse_resource_long(dev, "tx_msize", &sc->atse_tx_msize);
	error += atse_resource_long(dev, "txc_maddr", &sc->atse_txc_maddr);
	error += atse_resource_long(dev, "txc_msize", &sc->atse_txc_msize);
	if (error != 0)
		return (error);

	/* Avalon-MM, atse management register region. */
	sc->atse_mem_rid = 0;
	sc->atse_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
	    &sc->atse_mem_rid, RF_ACTIVE);
	if (sc->atse_mem_res == NULL) {
		device_printf(dev, "failed to map memory for ctrl region\n");
		return (ENXIO);
	}

	/*
	 * (Optional) RX IRQ and memory mapped regions.
	 * 0x00: 2 * 32bit FIFO data,
	 * 0x20: 8 * 32bit FIFO ctrl, Avalon-ST Sink to Avalon-MM R-Slave.
	 */
	sc->atse_rx_irq_rid = 0;
	sc->atse_rx_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ,
	    &sc->atse_rx_irq_rid, sc->atse_rx_irq, sc->atse_rx_irq, 1,
	    RF_ACTIVE | RF_SHAREABLE);

	sc->atse_rx_mem_rid = 0;
	sc->atse_rx_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
	    &sc->atse_rx_mem_rid, sc->atse_rx_maddr, sc->atse_rx_maddr +
	    sc->atse_rx_msize, sc->atse_rx_msize, RF_ACTIVE);
	if (sc->atse_rx_mem_res == NULL) {
		device_printf(dev, "failed to map memory for RX\n");
		goto err;
        }
	sc->atse_rxc_mem_rid = 0;
	sc->atse_rxc_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
	    &sc->atse_rxc_mem_rid, sc->atse_rxc_maddr, sc->atse_rxc_maddr +
	    sc->atse_rxc_msize, sc->atse_rxc_msize, RF_ACTIVE);
	if (sc->atse_rxc_mem_res == NULL) {
		device_printf(dev, "failed to map memory for RX control\n");
		goto err;
        }

	/*
	 * (Optional) TX IRQ and memory mapped regions.
	 * 0x00: 2 * 32bit FIFO data,
	 * 0x20: 8 * 32bit FIFO ctrl, Avalon-MM W-Slave to Avalon-ST Source.
	 */
	sc->atse_tx_irq_rid = 0;
	sc->atse_tx_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ,
	    &sc->atse_tx_irq_rid, sc->atse_tx_irq, sc->atse_tx_irq, 1,
	    RF_ACTIVE | RF_SHAREABLE);

	sc->atse_tx_mem_rid = 0;
	sc->atse_tx_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
	    &sc->atse_tx_mem_rid, sc->atse_tx_maddr, sc->atse_tx_maddr +
	    sc->atse_tx_msize, sc->atse_tx_msize, RF_ACTIVE);
	if (sc->atse_tx_mem_res == NULL) {
		device_printf(dev, "failed to map memory for TX\n");
		goto err;
	}
	sc->atse_txc_mem_rid = 0;
	sc->atse_txc_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
	    &sc->atse_txc_mem_rid, sc->atse_txc_maddr, sc->atse_txc_maddr +
	    sc->atse_txc_msize, sc->atse_txc_msize, RF_ACTIVE);
	if (sc->atse_txc_mem_res == NULL) {
		device_printf(dev, "failed to map memory for TX control\n");
		goto err;
	}

	error = atse_attach(dev);
	if (error)
		goto err;

	return (0);

err:
	/* Cleanup. */
	atse_detach_resources(dev);

	return (error);
}

//.........这里部分代码省略.........

	/* Claim data interface */
	for (i = 0; i < uaa->nifaces; ++i) {
		if (uaa->ifaces[i] != NULL) {
			id = usbd_get_interface_descriptor(uaa->ifaces[i]);
			if (id != NULL &&
			    id->bInterfaceNumber == sc->lgue_data_iface_no) {
				err = usbd_set_interface(uaa->ifaces[i],
				    LGUE_ALTERNATE_SETTING);
				if ( err != USBD_NORMAL_COMPLETION) {
					device_printf(dev,
					    "no alternate data interface. err:%s\n",
					    usbd_errstr(err));
					goto bad;
				}
				sc->lgue_data_iface = uaa->ifaces[i];
				uaa->ifaces[i] = NULL;
			}
		}
	}
	if (sc->lgue_data_iface == NULL) {
		device_printf(dev, "no data interface\n");
		goto bad;
	}

	/* Find data interface endpoints */
	id = usbd_get_interface_descriptor(sc->lgue_data_iface);
	sc->lgue_ed[LGUE_ENDPT_RX] = sc->lgue_ed[LGUE_ENDPT_TX] = -1;
	for (i = 0; i < id->bNumEndpoints; ++i) {
		ed = usbd_interface2endpoint_descriptor(sc->lgue_data_iface, i);
		if (!ed) {
			device_printf(dev,
			    "couldn't get endpoint descriptor %d\n", i);
			goto bad;
		}
		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
				UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
			sc->lgue_ed[LGUE_ENDPT_RX] = ed->bEndpointAddress;
		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
			sc->lgue_ed[LGUE_ENDPT_TX] = ed->bEndpointAddress;
		}
	}

	if (sc->lgue_ed[LGUE_ENDPT_RX] == -1) {
		device_printf(dev, "couldn't find data bilk in\n");
		goto bad;
	}
	if (sc->lgue_ed[LGUE_ENDPT_TX] == -1) {
		device_printf(dev, "couldn't find data bilk out\n");
		goto bad;
	}

	/* Find control interface endpoint */
	id = usbd_get_interface_descriptor(sc->lgue_ctl_iface);
	sc->lgue_ed[LGUE_ENDPT_INTR] = -1;
	for (i = 0; i < id->bNumEndpoints; ++i) {
		ed = usbd_interface2endpoint_descriptor(sc->lgue_ctl_iface, i);
		if (!ed) {
			device_printf(dev,
			    "couldn't get endpoint descriptor %d\n", i);
			goto bad;
		}
		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
			sc->lgue_ed[LGUE_ENDPT_INTR] = ed->bEndpointAddress;
		}
	}

	if (sc->lgue_ed[LGUE_ENDPT_INTR] == -1) {
		device_printf(dev, "couldn't find interrupt bilk in\n");
		goto bad;
	}

	/* Create interface */
	ifp = &sc->lgue_arpcom.ac_if;
	ifp->if_softc = sc;
	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
	lgue_getmac(sc, eaddr);

	ifp->if_mtu = lgue_getmtu(sc);
	ifp->if_data.ifi_mtu = ifp->if_mtu;
	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
	ifp->if_baudrate = 10000000;
	ifp->if_ioctl = lgue_ioctl;
	ifp->if_start = lgue_start;
	ifp->if_watchdog = lgue_watchdog;
	ifp->if_init = lgue_init;
	ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
	ifq_set_ready(&ifp->if_snd);

	/* Call attach routine */
	ether_ifattach(ifp, eaddr, NULL);
	usb_register_netisr();
	sc->lgue_dying = 0;
	return(0);

bad:
	return(ENXIO);
}

static int
sata_channel_attach(device_t dev)
{
	struct sata_softc *sc;
	struct ata_channel *ch;
	uint64_t work;
	int error, i;

	sc = device_get_softc(device_get_parent(dev));
	ch = device_get_softc(dev);

	if (ch->attached)
		return (0);

	ch->dev = dev;
	ch->unit = device_get_unit(dev);
	ch->flags |= ATA_USE_16BIT | ATA_NO_SLAVE | ATA_SATA;

	/* Set legacy ATA resources. */
	for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
		ch->r_io[i].res = sc->sc_mem_res;
		ch->r_io[i].offset = SATA_SHADOWR_BASE(ch->unit) + (i << 2);
	}

	ch->r_io[ATA_CONTROL].res = sc->sc_mem_res;
	ch->r_io[ATA_CONTROL].offset = SATA_SHADOWR_CONTROL(ch->unit);

	ch->r_io[ATA_IDX_ADDR].res = sc->sc_mem_res;
	ata_default_registers(dev);

	/* Set SATA resources. */
	ch->r_io[ATA_SSTATUS].res = sc->sc_mem_res;
	ch->r_io[ATA_SSTATUS].offset = SATA_SATA_SSTATUS(ch->unit);
	ch->r_io[ATA_SERROR].res = sc->sc_mem_res;
	ch->r_io[ATA_SERROR].offset = SATA_SATA_SERROR(ch->unit);
	ch->r_io[ATA_SCONTROL].res = sc->sc_mem_res;
	ch->r_io[ATA_SCONTROL].offset = SATA_SATA_SCONTROL(ch->unit);
	ata_generic_hw(dev);

	ch->hw.begin_transaction = sata_channel_begin_transaction;
	ch->hw.end_transaction = sata_channel_end_transaction;
	ch->hw.status = sata_channel_status;

	/* Set DMA resources */
	ata_dmainit(dev);
	ch->dma.setprd = sata_channel_dmasetprd;

	/* Clear work area */
	KASSERT(sc->sc_edma_qlen * (sizeof(struct sata_crqb) +
	    sizeof(struct sata_crpb)) <= ch->dma.max_iosize,
	    ("insufficient DMA memory for request/response queues.\n"));
	bzero(ch->dma.work, sc->sc_edma_qlen * (sizeof(struct sata_crqb) +
	    sizeof(struct sata_crpb)));
	bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);

	/* Turn off EDMA engine */
	error = sata_edma_ctrl(dev, 0);
	if (error) {
		ata_dmafini(dev);
		return (error);
	}

	/*
	 * Initialize EDMA engine:
	 *	- Native Command Queuing off,
	 *	- Non-Queued operation,
	 *	- Host Queue Cache enabled.
	 */
	SATA_OUTL(sc, SATA_EDMA_CFG(ch->unit), SATA_EDMA_CFG_HQCACHE |
	    (sc->sc_version == 1) ? SATA_EDMA_CFG_QL128 : 0);

	/* Set request queue pointers */
	work = ch->dma.work_bus;
	SATA_OUTL(sc, SATA_EDMA_REQBAHR(ch->unit), work >> 32);
	SATA_OUTL(sc, SATA_EDMA_REQIPR(ch->unit), work & 0xFFFFFFFF);
	SATA_OUTL(sc, SATA_EDMA_REQOPR(ch->unit), work & 0xFFFFFFFF);

	/* Set response queue pointers */
	work += sc->sc_edma_qlen * sizeof(struct sata_crqb);
	SATA_OUTL(sc, SATA_EDMA_RESBAHR(ch->unit), work >> 32);
	SATA_OUTL(sc, SATA_EDMA_RESIPR(ch->unit), work & 0xFFFFFFFF);
	SATA_OUTL(sc, SATA_EDMA_RESOPR(ch->unit), work & 0xFFFFFFFF);

	/* Clear any outstanding interrupts */
	ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
	SATA_OUTL(sc, SATA_SATA_FISICR(ch->unit), 0);
	SATA_OUTL(sc, SATA_EDMA_IECR(ch->unit), 0);
	SATA_OUTL(sc, SATA_ICR,
	    ~(SATA_ICR_DEV(ch->unit) | SATA_ICR_DMADONE(ch->unit)));

	/* Umask channel interrupts */
	SATA_OUTL(sc, SATA_EDMA_IEMR(ch->unit), 0xFFFFFFFF);
	SATA_OUTL(sc, SATA_MIMR, SATA_INL(sc, SATA_MIMR) |
	    SATA_MICR_DONE(ch->unit) | SATA_MICR_DMADONE(ch->unit) |
	    SATA_MICR_ERR(ch->unit));

	ch->attached = 1;

	return (ata_attach(dev));
//.........这里部分代码省略.........

static int
ahc_pci_attach(device_t dev)
{
	struct	 ahc_pci_identity *entry;
	struct	 ahc_softc *ahc;
	char	*name;
	int	 error;

	entry = ahc_find_pci_device(dev);
	if (entry == NULL)
		return (ENXIO);

	/*
	 * Allocate a softc for this card and
	 * set it up for attachment by our
	 * common detect routine.
	 */
	name = kmalloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_INTWAIT);
	strcpy(name, device_get_nameunit(dev));
	ahc = ahc_alloc(dev, name);
	if (ahc == NULL)
		return (ENOMEM);

	ahc_set_unit(ahc, device_get_unit(dev));

	/*
	 * Should we bother disabling 39Bit addressing
	 * based on installed memory?
	 */
	if (sizeof(bus_addr_t) > 4)
                ahc->flags |= AHC_39BIT_ADDRESSING;

	/* Allocate a dmatag for our SCB DMA maps */
	/* XXX Should be a child of the PCI bus dma tag */
	error = aic_dma_tag_create(ahc, /*parent*/NULL, /*alignment*/1,
				   /*boundary*/0,
				   (ahc->flags & AHC_39BIT_ADDRESSING)
				   ? 0x7FFFFFFFFFULL
				   : BUS_SPACE_MAXADDR_32BIT,
				   /*highaddr*/BUS_SPACE_MAXADDR,
				   /*filter*/NULL, /*filterarg*/NULL,
				   /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
				   /*nsegments*/AHC_NSEG,
				   /*maxsegsz*/AHC_MAXTRANSFER_SIZE,
				   /*flags*/0,
				   &ahc->parent_dmat);

	if (error != 0) {
		kprintf("ahc_pci_attach: Could not allocate DMA tag "
		       "- error %d\n", error);
		ahc_free(ahc);
		return (ENOMEM);
	}
	ahc->dev_softc = dev;
	error = ahc_pci_config(ahc, entry);
	if (error != 0) {
		ahc_free(ahc);
		return (error);
	}

	ahc_attach(ahc);
	return (0);
}

/*
 * Parse a _CST package and set up its Cx states.  Since the _CST object
 * can change dynamically, our notify handler may call this function
 * to clean up and probe the new _CST package.
 */
static int
acpi_cpu_cx_cst(struct acpi_cpu_softc *sc)
{
    struct	 acpi_cx *cx_ptr;
    ACPI_STATUS	 status;
    ACPI_BUFFER	 buf;
    ACPI_OBJECT	*top;
    ACPI_OBJECT	*pkg;
    uint32_t	 count;
    int		 i;

    ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);

    buf.Pointer = NULL;
    buf.Length = ACPI_ALLOCATE_BUFFER;
    status = AcpiEvaluateObject(sc->cpu_handle, "_CST", NULL, &buf);
    if (ACPI_FAILURE(status))
	return (ENXIO);

    /* _CST is a package with a count and at least one Cx package. */
    top = (ACPI_OBJECT *)buf.Pointer;
    if (!ACPI_PKG_VALID(top, 2) || acpi_PkgInt32(top, 0, &count) != 0) {
	device_printf(sc->cpu_dev, "invalid _CST package\n");
	AcpiOsFree(buf.Pointer);
	return (ENXIO);
    }
    if (count != top->Package.Count - 1) {
	device_printf(sc->cpu_dev, "invalid _CST state count (%d != %d)\n",
	       count, top->Package.Count - 1);
	count = top->Package.Count - 1;
    }
    if (count > MAX_CX_STATES) {
	device_printf(sc->cpu_dev, "_CST has too many states (%d)\n", count);
	count = MAX_CX_STATES;
    }

    /* Set up all valid states. */
    sc->cpu_cx_count = 0;
    cx_ptr = sc->cpu_cx_states;
    for (i = 0; i < count; i++) {
	pkg = &top->Package.Elements[i + 1];
	if (!ACPI_PKG_VALID(pkg, 4) ||
	    acpi_PkgInt32(pkg, 1, &cx_ptr->type) != 0 ||
	    acpi_PkgInt32(pkg, 2, &cx_ptr->trans_lat) != 0 ||
	    acpi_PkgInt32(pkg, 3, &cx_ptr->power) != 0) {

	    device_printf(sc->cpu_dev, "skipping invalid Cx state package\n");
	    continue;
	}

	/* Validate the state to see if we should use it. */
	switch (cx_ptr->type) {
	case ACPI_STATE_C1:
	    sc->cpu_non_c3 = i;
	    cx_ptr++;
	    sc->cpu_cx_count++;
	    continue;
	case ACPI_STATE_C2:
	    sc->cpu_non_c3 = i;
	    break;
	case ACPI_STATE_C3:
	default:
	    if ((cpu_quirks & CPU_QUIRK_NO_C3) != 0) {

		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
				 "acpi_cpu%d: C3[%d] not available.\n",
				 device_get_unit(sc->cpu_dev), i));
		continue;
	    }
	    break;
	}

#ifdef notyet
	/* Free up any previous register. */
	if (cx_ptr->p_lvlx != NULL) {
	    bus_release_resource(sc->cpu_dev, 0, 0, cx_ptr->p_lvlx);
	    cx_ptr->p_lvlx = NULL;
	}
#endif

	/* Allocate the control register for C2 or C3. */
	cx_ptr->rid = sc->cpu_parent->cpux_next_rid;
	acpi_PkgGas(sc->cpu_dev, pkg, 0, &cx_ptr->res_type, &cx_ptr->rid, &cx_ptr->p_lvlx,
		    RF_SHAREABLE);
	if (cx_ptr->p_lvlx) {
	    sc->cpu_parent->cpux_next_rid++;
	    ACPI_DEBUG_PRINT((ACPI_DB_INFO,
			     "acpi_cpu%d: Got C%d - %d latency\n",
			     device_get_unit(sc->cpu_dev), cx_ptr->type,
			     cx_ptr->trans_lat));
	    cx_ptr++;
	    sc->cpu_cx_count++;
	}
    }
    AcpiOsFree(buf.Pointer);
//.........这里部分代码省略.........

static int
rp_probe(device_t dev)
{
	int unit;
	CONTROLLER_t *controller;
	int num_aiops;
	CONTROLLER_t *ctlp;
	int retval;

	/*
	 * We have no PnP RocketPort cards.
	 * (At least according to LINT)
	 */
	if (isa_get_logicalid(dev) != 0)
		return (ENXIO);

	/* We need IO port resource to configure an ISA device. */
	if (bus_get_resource_count(dev, SYS_RES_IOPORT, 0) == 0)
		return (ENXIO);

	unit = device_get_unit(dev);
	if (unit >= 4) {
		device_printf(dev, "rpprobe: unit number %d invalid.\n", unit);
		return (ENXIO);
	}
	device_printf(dev, "probing for RocketPort(ISA) unit %d.\n", unit);

	ctlp = device_get_softc(dev);
	bzero(ctlp, sizeof(*ctlp));
	ctlp->dev = dev;
	ctlp->aiop2rid = rp_isa_aiop2rid;
	ctlp->aiop2off = rp_isa_aiop2off;
	ctlp->ctlmask = rp_isa_ctlmask;

	/* The IO ports of AIOPs for an ISA controller are discrete. */
	ctlp->io_num = 1;
	ctlp->io_rid = malloc(sizeof(*(ctlp->io_rid)) * MAX_AIOPS_PER_BOARD, M_DEVBUF, M_NOWAIT | M_ZERO);
	ctlp->io = malloc(sizeof(*(ctlp->io)) * MAX_AIOPS_PER_BOARD, M_DEVBUF, M_NOWAIT | M_ZERO);
	if (ctlp->io_rid == NULL || ctlp->io == NULL) {
		device_printf(dev, "rp_attach: Out of memory.\n");
		retval = ENOMEM;
		goto nogo;
	}

	ctlp->bus_ctlp = malloc(sizeof(ISACONTROLLER_t) * 1, M_DEVBUF, M_NOWAIT | M_ZERO);
	if (ctlp->bus_ctlp == NULL) {
		device_printf(dev, "rp_attach: Out of memory.\n");
		retval = ENOMEM;
		goto nogo;
	}

	ctlp->io_rid[0] = 0;
	if (rp_controller != NULL) {
		controller = rp_controller;
		ctlp->io[0] = bus_alloc_resource(dev, SYS_RES_IOPORT, &ctlp->io_rid[0], 0, ~0, 0x40, RF_ACTIVE);
	} else {
		controller = rp_controller = ctlp;
		ctlp->io[0] = bus_alloc_resource(dev, SYS_RES_IOPORT, &ctlp->io_rid[0], 0, ~0, 0x44, RF_ACTIVE);
	}
	if (ctlp->io[0] == NULL) {
		device_printf(dev, "rp_attach: Resource not available.\n");
		retval = ENXIO;
		goto nogo;
	}

	num_aiops = sInitController(ctlp,
				controller,
				MAX_AIOPS_PER_BOARD, 0,
				FREQ_DIS, 0);
	if (num_aiops <= 0) {
		device_printf(dev, "board%d init failed.\n", unit);
		retval = ENXIO;
		goto nogo;
	}

	if (rp_controller == NULL)
		rp_controller = controller;
	rp_nisadevs++;

	device_set_desc(dev, "RocketPort ISA");

	return (0);

nogo:
	rp_isareleaseresource(ctlp);

	return (retval);
}

static int
hwpstate_probe(device_t dev)
{
	struct hwpstate_softc *sc;
	device_t perf_dev;
	uint64_t msr;
	int error, type;

	/*
	 * Only hwpstate0.
	 * It goes well with acpi_throttle.
	 */
	if (device_get_unit(dev) != 0)
		return (ENXIO);

	sc = device_get_softc(dev);
	sc->dev = dev;

	/*
	 * Check if acpi_perf has INFO only flag.
	 */
	perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
	error = TRUE;
	if (perf_dev && device_is_attached(perf_dev)) {
		error = CPUFREQ_DRV_TYPE(perf_dev, &type);
		if (error == 0) {
			if ((type & CPUFREQ_FLAG_INFO_ONLY) == 0) {
				/*
				 * If acpi_perf doesn't have INFO_ONLY flag,
				 * it will take care of pstate transitions.
				 */
				HWPSTATE_DEBUG(dev, "acpi_perf will take care of pstate transitions.\n");
				return (ENXIO);
			} else {
				/*
				 * If acpi_perf has INFO_ONLY flag, (_PCT has FFixedHW)
				 * we can get _PSS info from acpi_perf
				 * without going into ACPI.
				 */
				HWPSTATE_DEBUG(dev, "going to fetch info from acpi_perf\n");
				error = hwpstate_get_info_from_acpi_perf(dev, perf_dev);
			}
		}
	}

	if (error == 0) {
		/*
		 * Now we get _PSS info from acpi_perf without error.
		 * Let's check it.
		 */
		msr = rdmsr(MSR_AMD_10H_11H_LIMIT);
		if (sc->cfnum != 1 + AMD_10H_11H_GET_PSTATE_MAX_VAL(msr)) {
			HWPSTATE_DEBUG(dev, "msr and acpi _PSS count mismatch.\n");
			error = TRUE;
		}
	}

	/*
	 * If we cannot get info from acpi_perf,
	 * Let's get info from MSRs.
	 */
	if (error)
		error = hwpstate_get_info_from_msr(dev);
	if (error)
		return (error);

	device_set_desc(dev, "Cool`n'Quiet 2.0");
	return (0);
}

/*
 * Function name:	tw_osli_cam_attach
 * Description:		Attaches the driver to CAM.
 *
 * Input:		sc	-- ptr to OSL internal ctlr context
 * Output:		None
 * Return value:	0	-- success
 *			non-zero-- failure
 */
TW_INT32
tw_osli_cam_attach(struct twa_softc *sc)
{
	struct cam_devq		*devq;

	tw_osli_dbg_dprintf(3, sc, "entered");

	/*
	 * Create the device queue for our SIM.
	 */
	if ((devq = cam_simq_alloc(TW_OSLI_MAX_NUM_IOS)) == NULL) {
		tw_osli_printf(sc, "error = %d",
			TW_CL_SEVERITY_ERROR_STRING,
			TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
			0x2100,
			"Failed to create SIM device queue",
			ENOMEM);
		return(ENOMEM);
	}

	/*
	 * Create a SIM entry.  Though we can support TW_OSLI_MAX_NUM_REQUESTS
	 * simultaneous requests, we claim to be able to handle only
	 * TW_OSLI_MAX_NUM_IOS (two less), so that we always have a request
	 * packet available to service ioctls and AENs.
	 */
	tw_osli_dbg_dprintf(3, sc, "Calling cam_sim_alloc");
	sc->sim = cam_sim_alloc(twa_action, twa_poll, "twa", sc,
			device_get_unit(sc->bus_dev), sc->sim_lock,
			TW_OSLI_MAX_NUM_IOS, 1, devq);
	if (sc->sim == NULL) {
		cam_simq_free(devq);
		tw_osli_printf(sc, "error = %d",
			TW_CL_SEVERITY_ERROR_STRING,
			TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
			0x2101,
			"Failed to create a SIM entry",
			ENOMEM);
		return(ENOMEM);
	}

	/*
	 * Register the bus.
	 */
	tw_osli_dbg_dprintf(3, sc, "Calling xpt_bus_register");
	mtx_lock(sc->sim_lock);
	if (xpt_bus_register(sc->sim, sc->bus_dev, 0) != CAM_SUCCESS) {
		cam_sim_free(sc->sim, TRUE);
		sc->sim = NULL; /* so cam_detach will not try to free it */
		tw_osli_printf(sc, "error = %d",
			TW_CL_SEVERITY_ERROR_STRING,
			TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
			0x2102,
			"Failed to register the bus",
			ENXIO);
		mtx_unlock(sc->sim_lock);
		return(ENXIO);
	}

	tw_osli_dbg_dprintf(3, sc, "Calling xpt_create_path");
	if (xpt_create_path(&sc->path, NULL,
				cam_sim_path(sc->sim),
				CAM_TARGET_WILDCARD,
				CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
		xpt_bus_deregister(cam_sim_path (sc->sim));
		/* Passing TRUE to cam_sim_free will free the devq as well. */
		cam_sim_free(sc->sim, TRUE);
		tw_osli_printf(sc, "error = %d",
			TW_CL_SEVERITY_ERROR_STRING,
			TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
			0x2103,
			"Failed to create path",
			ENXIO);
		mtx_unlock(sc->sim_lock);
		return(ENXIO);
	}
	mtx_unlock(sc->sim_lock);

	tw_osli_dbg_dprintf(3, sc, "exiting");
	return(0);
}

static void
bcm_fb_init(void *arg)
{
	volatile struct bcm_fb_config *fb_config;
	struct bcmsc_softc *sc;
	struct fb_info *info;
	phandle_t node;
	pcell_t cell;
	device_t mbox;
	device_t fbd;
	int err = 0;

	sc = arg;
	fb_config = sc->fb_config;
	node = ofw_bus_get_node(sc->dev);

	fb_config->xres = 0;
	fb_config->yres = 0;
	fb_config->bpp = 0;
	fb_config->vxres = 0;
	fb_config->vyres = 0;
	fb_config->xoffset = 0;
	fb_config->yoffset = 0;
	fb_config->base = 0;
	fb_config->pitch = 0;
	fb_config->screen_size = 0;

	if ((OF_getprop(node, "broadcom,width", &cell, sizeof(cell))) > 0)
		fb_config->xres = (int)fdt32_to_cpu(cell);
	if (fb_config->xres == 0)
		fb_config->xres = FB_WIDTH;

	if ((OF_getprop(node, "broadcom,height", &cell, sizeof(cell))) > 0)
		fb_config->yres = (uint32_t)fdt32_to_cpu(cell);
	if (fb_config->yres == 0)
		fb_config->yres = FB_HEIGHT;

	if ((OF_getprop(node, "broadcom,depth", &cell, sizeof(cell))) > 0)
		fb_config->bpp = (uint32_t)fdt32_to_cpu(cell);
	if (fb_config->bpp == 0)
		fb_config->bpp = FB_DEPTH;

	bus_dmamap_sync(sc->dma_tag, sc->dma_map,
		BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);

	mbox = devclass_get_device(devclass_find("mbox"), 0);
	if (mbox) {
		MBOX_WRITE(mbox, BCM2835_MBOX_CHAN_FB, sc->fb_config_phys);
		MBOX_READ(mbox, BCM2835_MBOX_CHAN_FB, &err);
	}
	bus_dmamap_sync(sc->dma_tag, sc->dma_map,
		BUS_DMASYNC_POSTREAD);

	if (fb_config->base != 0) {
		device_printf(sc->dev, "%dx%d(%dx%[email protected]%d,%d) %dbpp\n",
			fb_config->xres, fb_config->yres,
			fb_config->vxres, fb_config->vyres,
			fb_config->xoffset, fb_config->yoffset,
			fb_config->bpp);

		device_printf(sc->dev, "pitch %d, base 0x%08x, screen_size %d\n",
			fb_config->pitch, fb_config->base,
			fb_config->screen_size);

		info = malloc(sizeof(struct fb_info), M_DEVBUF,
		    M_WAITOK | M_ZERO);
		info->fb_name = device_get_nameunit(sc->dev);
		info->fb_vbase = (intptr_t)pmap_mapdev(fb_config->base,
		    fb_config->screen_size);
		info->fb_pbase = fb_config->base;
		info->fb_size = fb_config->screen_size;
		info->fb_bpp = info->fb_depth = fb_config->bpp;
		info->fb_stride = fb_config->pitch;
		info->fb_width = fb_config->xres;
		info->fb_height = fb_config->yres;

		sc->info = info;

		fbd = device_add_child(sc->dev, "fbd",
		    device_get_unit(sc->dev));
		if (fbd == NULL) {
			device_printf(sc->dev, "Failed to add fbd child\n");
			return;
		}
		if (device_probe_and_attach(fbd) != 0) {
			device_printf(sc->dev, "Failed to attach fbd device\n");
			return;
		}
	} else {
		device_printf(sc->dev, "Failed to set framebuffer info\n");
		return;
	}

	config_intrhook_disestablish(&sc->init_hook);
}