int
ral_cardbus_match(struct device *parent,
    struct cfdata *cfdata, void *aux)
{
        struct cardbus_attach_args *ca = aux;

        if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) {
                switch (PCI_PRODUCT(ca->ca_id)) {
		case PCI_PRODUCT_RALINK_RT2560:
		case PCI_PRODUCT_RALINK_RT2561:
		case PCI_PRODUCT_RALINK_RT2561S:
		case PCI_PRODUCT_RALINK_RT2661:
			return 1;
		default:
			return 0;
                }
        }

        return 0;
}

/*
 * Determine which flags should be passed to the primary PCI bus's
 * autoconfiguration node.  We use this to detect broken chipsets
 * which cannot safely use memory-mapped device access.
 */
int
pci_bus_flags()
{
	int rval = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
	    PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY;
	int device, maxndevs;
	pcitag_t tag;
	pcireg_t id;

	maxndevs = pci_bus_maxdevs(NULL, 0);

	for (device = 0; device < maxndevs; device++) {
		tag = pci_make_tag(NULL, 0, device, 0);
		id = pci_conf_read(NULL, tag, PCI_ID_REG);

		/* Invalid vendor ID value? */
		if (PCI_VENDOR(id) == PCI_VENDOR_INVALID)
			continue;
		/* XXX Not invalid, but we've done this ~forever. */
		if (PCI_VENDOR(id) == 0)
			continue;

		switch (PCI_VENDOR(id)) {
		case PCI_VENDOR_SIS:
			switch (PCI_PRODUCT(id)) {
			case PCI_PRODUCT_SIS_85C496:
				goto disable_mem;
			}
			break;
		}
	}

	return (rval);

 disable_mem:
	printf("Warning: broken PCI-Host bridge detected; "
	    "disabling memory-mapped access\n");
	rval &= ~(PCI_FLAGS_MEM_ENABLED|PCI_FLAGS_MRL_OKAY|PCI_FLAGS_MRM_OKAY|
	    PCI_FLAGS_MWI_OKAY);
	return (rval);
}

static int
iop_pci_match(struct device *parent, struct cfdata *match,
    void *aux)
{
	struct pci_attach_args *pa;
	u_int product, vendor;
	pcireg_t reg;

	pa = aux;

	/*
	 * Look for an "intelligent I/O processor" that adheres to the I2O
	 * specification.  Ignore the device if it doesn't support interrupt
	 * driven operation.
	 */
	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_I2O &&
	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_I2O_STANDARD &&
	    PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_I2O_INTRDRIVEN)
		return (1);

	/*
	 * Match boards that don't conform exactly to the spec.
	 */
	vendor = PCI_VENDOR(pa->pa_id);
	product = PCI_PRODUCT(pa->pa_id);

	if (vendor == PCI_VENDOR_DPT &&
	    (product == PCI_PRODUCT_DPT_RAID_I2O ||
	    product == PCI_PRODUCT_DPT_RAID_2005S))
		return (1);

	if (vendor == PCI_VENDOR_INTEL &&
	    (product == PCI_PRODUCT_INTEL_80960RM_2 ||
	    product == PCI_PRODUCT_INTEL_80960_RP)) {
		reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
		if (PCI_VENDOR(reg) == PCI_VENDOR_PROMISE)
			return (1);
	}

	return (0);
}

int
obio_match(device_t parent, cfdata_t cf, void *aux)
{
    struct pci_attach_args *pa = aux;

    if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE)
        switch (PCI_PRODUCT(pa->pa_id)) {
        case PCI_PRODUCT_APPLE_GC:
        case PCI_PRODUCT_APPLE_OHARE:
        case PCI_PRODUCT_APPLE_HEATHROW:
        case PCI_PRODUCT_APPLE_PADDINGTON:
        case PCI_PRODUCT_APPLE_KEYLARGO:
        case PCI_PRODUCT_APPLE_PANGEA_MACIO:
        case PCI_PRODUCT_APPLE_INTREPID:
        case PCI_PRODUCT_APPLE_K2:
        case PCI_PRODUCT_APPLE_SHASTA:
            return 1;
        }

    return 0;
}

static int
pchb_match(struct device *parent, struct cfdata *match, void *aux)
{
	struct pci_attach_args *pa = aux;

	/*
	 * Match all known PCI host chipsets.
	 */
	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_HOST) {
		switch (PCI_VENDOR(pa->pa_id)) {
		case PCI_VENDOR_GALILEO:
			switch (PCI_PRODUCT(pa->pa_id)) {
			case PCI_PRODUCT_GALILEO_GT64120:
				return (!pcifound);
			}
			break;
		}
	}
	return (0);
}

static int
fwohci_pci_match(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = (struct pci_attach_args *) aux;

	/*
	 * XXX
	 * Firewire controllers used in some G3 PowerBooks hang the system
	 * when trying to discover devices - don't attach to those for now
	 * until someone with the right hardware can investigate
	 */
	if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE) &&
	    (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_PBG3_FW))
		return 0;
	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS &&
	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_FIREWIRE &&
	    PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI)
		return 1;

	return 0;
}

int
pci_conf_hook(pci_chipset_tag_t pc, int bus, int dev, int func, pcireg_t id)
{

	/* ignore bogus IDs */
	if (PCI_VENDOR(id) == 0)
		return 0;

	/* 2700 hardware wedges on accesses to device 6. */
	if (bus == 0 && dev == 6)
		return 0;

	/* 2800 hardware wedges on accesses to device 31. */
	if (bus == 0 && dev == 31)
		return 0;

	/* Don't configure the bridge and PCI probe. */ 
	if (PCI_VENDOR(id) == PCI_VENDOR_MARVELL &&
	    PCI_PRODUCT(id) == PCI_PRODUCT_MARVELL_GT64011)
	        return 0;

	/* Don't configure on-board VIA VT82C586 (pcib, uhci) */
	if (bus == 0 && dev == 9 && (func == 0 || func == 2))
		return 0;

	/* Enable viaide secondary port. Some firmware doesn't enable it. */
	if (bus == 0 && dev == 9 && func == 1) {
		pcitag_t tag;
		pcireg_t csr;

#define	APO_VIAIDECONF	(APO_VIA_REGBASE + 0x00)

		tag = pci_make_tag(pc, bus, dev, func);
		csr = pci_conf_read(pc, tag, APO_VIAIDECONF);
		pci_conf_write(pc, tag, APO_VIAIDECONF,
		    csr | APO_IDECONF_EN(1));
	}
	return PCI_CONF_DEFAULT & ~(PCI_COMMAND_SERR_ENABLE |
	    PCI_COMMAND_PARITY_ENABLE);
}

static int
yds_match(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa;

	pa = (struct pci_attach_args *)aux;
	switch (PCI_VENDOR(pa->pa_id)) {
	case PCI_VENDOR_YAMAHA:
		switch (PCI_PRODUCT(pa->pa_id)) {
		case PCI_PRODUCT_YAMAHA_YMF724:
		case PCI_PRODUCT_YAMAHA_YMF740:
		case PCI_PRODUCT_YAMAHA_YMF740C:
		case PCI_PRODUCT_YAMAHA_YMF724F:
		case PCI_PRODUCT_YAMAHA_YMF744B:
		case PCI_PRODUCT_YAMAHA_YMF754:
			return 1;
		}
		break;
	}

	return 0;
}

int
ppbmatch(struct device *parent, void *match, void *aux)
{
	struct pci_attach_args *pa = aux;

	/*
	 * This device is mislabeled.  It is not a PCI bridge.
	 */
	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_VIATECH &&
	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_VIATECH_VT82C586_PWR)
		return (0);
	/*
	 * Check the ID register to see that it's a PCI bridge.
	 * If it is, we assume that we can deal with it; it _should_
	 * work in a standardized way...
	 */
	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_PCI)
		return (1);

	return (0);
}

static void
scan_pci_bus(void)
{
	pcitag_t tag;
	int i, x;

	for (i=0;i<32;i++){
		tag = pci_make_tag(0, 0, i, 0);
		x = pci_conf_read(0, tag, 0);
		printf("%d tag=%08x : %08x\n", i, tag, x);
#if 0
		if (PCI_VENDOR(x) == PCI_VENDOR_INTEL
		    && PCI_PRODUCT(x) == PCI_PRODUCT_INTEL_80960_RP) {
			/* Do not configure PCI bus analyzer */
			continue;
		}
		x = pci_conf_read(0, tag, PCI_COMMAND_STATUS_REG);
		x |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE;
		pci_conf_write(0, tag, PCI_COMMAND_STATUS_REG, x);
#endif
	}
}

int
gdt_pci_probe(struct device *parent, void *match, void *aux)
{
        struct pci_attach_args *pa = aux;

	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_VORTEX &&
	    ((PCI_PRODUCT(pa->pa_id) >= GDT_DEVICE_ID_MIN &&
	    PCI_PRODUCT(pa->pa_id) <= GDT_DEVICE_ID_MAX) ||
	    PCI_PRODUCT(pa->pa_id) == GDT_DEVICE_ID_NEWRX ||
	    PCI_PRODUCT(pa->pa_id) == GDT_DEVICE_ID_NEWRX2))
		return (1);
	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
	    (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_GDT_RAID1 ||
	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_GDT_RAID2))
		return (1);
	return (0);
}

int
kauaiatamatch(struct device *parent, void *match, void *aux)
{
	struct pci_attach_args *pa = aux;

	/*
	 * Match the adapter
	 * XXX match routine??
	 */
	switch(PCI_VENDOR(pa->pa_id)) {
	case PCI_VENDOR_APPLE:
		switch (PCI_PRODUCT(pa->pa_id)) {
		case PCI_PRODUCT_APPLE_UNINORTH_ATA:
		case PCI_PRODUCT_APPLE_INTREPID_ATA:
		case PCI_PRODUCT_APPLE_INTREPID2_ATA:
		case PCI_PRODUCT_APPLE_K2_ATA:
		case PCI_PRODUCT_APPLE_SHASTA_ATA:
			return (1);
		}
		break;
	}
	return 0;
}

static const char *
iwic_find_card(const struct pci_attach_args * pa)
{
	pcireg_t type = pa->pa_id;
	pcireg_t reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
	int sv = PCI_VENDOR(reg);
	int sd = PCI_PRODUCT(reg);
	struct winids *wip = win_ids;

	while (wip->type) {
		if (wip->type == type) {
			if (((wip->sv == -1) && (wip->sd == -1)) ||
			    ((wip->sv == sv) && (wip->sd == sd)))
				break;
		}
		++wip;
	}

	if (wip->desc)
		return wip->desc;

	return 0;
}

static int
pci_matchbyid(lua_State *L)
{
  struct pci_attach_args *pa;
  const struct pci_matchid *ids;
  int nent;

  const struct pci_matchid *pm;
  int i;

  pa = lua_touserdata(L, -3);
  ids = lua_touserdata(L, -2);
  nent = lua_tointeger(L, -1);
  lua_pop(L, 3);

  for (i = 0, pm = ids; i < nent; i++, pm++)
    if (PCI_VENDOR(pa->pa_id) == pm->pm_vid &&
	PCI_PRODUCT(pa->pa_id) == pm->pm_pid) {
      lua_pushinteger(L, 1);
      return 1;
    }
  lua_pushinteger(L, 0);
  return 1;
}

static int
yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
{
	struct yds_codec_softc *sc;

	sc = sc_;
	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);

	if (yds_ready_codec(sc)) {
		aprint_error_dev(sc->sc->sc_dev, "yds_read_codec timeout\n");
		return EIO;
	}

	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
	    sc->sc->sc_revision < 2) {
		int i;
		for (i=0; i<600; i++)
			(void)YREAD2(sc->sc, sc->status_data);
	}

	*data = YREAD2(sc->sc, sc->status_data);

	return 0;
}

int
pci_conf_hook(void *v, int bus, int dev, int func, pcireg_t id)
{

	/*
	 * We need to disable devices in the Southbridge, and as
	 * we have all the tags we need at this point, this is
	 * where we do it.
	 */
	if (PCI_VENDOR(id) == PCI_VENDOR_ALI &&
	    PCI_PRODUCT(id) == PCI_PRODUCT_ALI_M1543)
	{
		pcitag_t tag;
		int status;
		pci_chipset_tag_t pc = (pci_chipset_tag_t) v;

		tag = pci_make_tag(pc, bus, dev, func);

		/* Undocumented magic */

		/* Disable USB */
		pci_conf_write_byte(pc, tag, 0x53, 0x40);
		pci_conf_write_byte(pc, tag, 0x52, 0x00);

		status = pci_conf_read_byte(pc, tag, 0x7e);
		pci_conf_write_byte(pc, tag, 0x7e, status & ~0x80);

		/* Disable modem */
		pci_conf_write_byte(pc, tag, 0x77, 1 << 6);

		/* Disable SCI */
		pci_conf_write_byte(pc, tag, 0x78, 1 << 7);
	}

	return (PCI_CONF_DEFAULT);
}

/*static*/ int
ndis_probe_pci(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = aux;
	int vendor  = PCI_VENDOR(pa->pa_id);
	int product = PCI_PRODUCT(pa->pa_id);
	
	struct ndis_pci_type *t = ndis_devs;
	driver_object        *drv = NULL;	/* = windrv_lookup(0, "PCI Bus");**/
		
#ifdef NDIS_DBG
	printf("in ndis_probe_pci\n");
	printf("vendor = %x, product = %x\n", vendor, product);
#endif
	
	while(t->ndis_name != NULL) {
#ifdef NDIS_DBG
			printf("t->ndis_vid = %x, t->ndis_did = %x\n",
			       t->ndis_vid, t->ndis_did);
#endif
		if((vendor  == t->ndis_vid) && (product == t->ndis_did)) {
#ifdef _MODULE	
			ndisdrv_modevent(NULL, MOD_LOAD);
			//kthread_create(load_ndisdrv, NULL);
#endif /* _MODULE */
				
			drv = windrv_lookup(0, "PCI Bus");
			printf("Matching vendor: %x, product: %x, name: %s\n", vendor, product, t->ndis_name);
			windrv_create_pdo(drv, parent);
			return 1;
		}
		t++;
	}
	
	return 0;  /* dosen't match */
}

void
nfe_attach(struct device *parent, struct device *self, void *aux)
{
	struct nfe_softc *sc = (struct nfe_softc *)self;
	struct pci_attach_args *pa = aux;
	pci_chipset_tag_t pc = pa->pa_pc;
	pci_intr_handle_t ih;
	const char *intrstr;
	struct ifnet *ifp;
	bus_size_t memsize;
	pcireg_t memtype;

	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, NFE_PCI_BA);
	if (pci_mapreg_map(pa, NFE_PCI_BA, memtype, 0, &sc->sc_memt,
	    &sc->sc_memh, NULL, &memsize, 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(pc, ih);
	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, nfe_intr, sc,
	    sc->sc_dev.dv_xname);
	if (sc->sc_ih == NULL) {
		printf(": could not establish interrupt");
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf(": %s", intrstr);

	sc->sc_dmat = pa->pa_dmat;
	sc->sc_flags = 0;

	switch (PCI_PRODUCT(pa->pa_id)) {
	case PCI_PRODUCT_NVIDIA_NFORCE3_LAN2:
	case PCI_PRODUCT_NVIDIA_NFORCE3_LAN3:
	case PCI_PRODUCT_NVIDIA_NFORCE3_LAN4:
	case PCI_PRODUCT_NVIDIA_NFORCE3_LAN5:
		sc->sc_flags |= NFE_JUMBO_SUP | NFE_HW_CSUM;
		break;
	case PCI_PRODUCT_NVIDIA_MCP51_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP51_LAN2:
		sc->sc_flags |= NFE_40BIT_ADDR | NFE_PWR_MGMT;
		break;
	case PCI_PRODUCT_NVIDIA_MCP61_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP61_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP61_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP61_LAN4:
	case PCI_PRODUCT_NVIDIA_MCP67_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP67_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP67_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP67_LAN4:
	case PCI_PRODUCT_NVIDIA_MCP73_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP73_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP73_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP73_LAN4:
		sc->sc_flags |= NFE_40BIT_ADDR | NFE_CORRECT_MACADDR |
		    NFE_PWR_MGMT;
		break;
	case PCI_PRODUCT_NVIDIA_MCP77_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP77_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP77_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP77_LAN4:
		sc->sc_flags |= NFE_40BIT_ADDR | NFE_HW_CSUM |
		    NFE_CORRECT_MACADDR | NFE_PWR_MGMT;
		break;
	case PCI_PRODUCT_NVIDIA_MCP79_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP79_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP79_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP79_LAN4:
	case PCI_PRODUCT_NVIDIA_MCP89_LAN:
		sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM |
		    NFE_CORRECT_MACADDR | NFE_PWR_MGMT;
		break;
	case PCI_PRODUCT_NVIDIA_CK804_LAN1:
	case PCI_PRODUCT_NVIDIA_CK804_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP04_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP04_LAN2:
		sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM;
		break;
	case PCI_PRODUCT_NVIDIA_MCP65_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP65_LAN2:
	case PCI_PRODUCT_NVIDIA_MCP65_LAN3:
	case PCI_PRODUCT_NVIDIA_MCP65_LAN4:
		sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR |
		    NFE_CORRECT_MACADDR | NFE_PWR_MGMT;
		break;
	case PCI_PRODUCT_NVIDIA_MCP55_LAN1:
	case PCI_PRODUCT_NVIDIA_MCP55_LAN2:
		sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM |
		    NFE_HW_VLAN | NFE_PWR_MGMT;
		break;
	}

//.........这里部分代码省略.........

void
main(int argc, char *argv[], char *bootargs_start, char *bootargs_end)
{
	unsigned long marks[MARK_MAX];
	struct brdprop *brdprop;
	char *new_argv[MAX_ARGS];
	char *bname;
	ssize_t len;
	int err, fd, howto, i, n;

	printf("\n>> %s altboot, revision %s\n", bootprog_name, bootprog_rev);

	brdprop = brd_lookup(brdtype);
	printf(">> %s, cpu %u MHz, bus %u MHz, %dMB SDRAM\n", brdprop->verbose,
	    cpuclock / 1000000, busclock / 1000000, bi_mem.memsize >> 20);

	nata = pcilookup(PCI_CLASS_IDE, lata, 2);
	if (nata == 0)
		nata = pcilookup(PCI_CLASS_RAID, lata, 2);
	if (nata == 0)
		nata = pcilookup(PCI_CLASS_MISCSTORAGE, lata, 2);
	if (nata == 0)
		nata = pcilookup(PCI_CLASS_SCSI, lata, 2);
	nnif = pcilookup(PCI_CLASS_ETH, lnif, 2);
	nusb = pcilookup(PCI_CLASS_USB, lusb, 3);

#ifdef DEBUG
	if (nata == 0)
		printf("No IDE/SATA found\n");
	else for (n = 0; n < nata; n++) {
		int b, d, f, bdf, pvd;
		bdf = lata[n].bdf;
		pvd = lata[n].pvd;
		pcidecomposetag(bdf, &b, &d, &f);
		printf("%04x.%04x DSK %02d:%02d:%02d\n",
		    PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f);
	}
	if (nnif == 0)
		printf("no NET found\n");
	else for (n = 0; n < nnif; n++) {
		int b, d, f, bdf, pvd;
		bdf = lnif[n].bdf;
		pvd = lnif[n].pvd;
		pcidecomposetag(bdf, &b, &d, &f);
		printf("%04x.%04x NET %02d:%02d:%02d\n",
		    PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f);
	}
	if (nusb == 0)
		printf("no USB found\n");
	else for (n = 0; n < nusb; n++) {
		int b, d, f, bdf, pvd;
		bdf = lusb[0].bdf;
		pvd = lusb[0].pvd;
		pcidecomposetag(bdf, &b, &d, &f);
		printf("%04x.%04x USB %02d:%02d:%02d\n",
		    PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f);
	}
#endif

	pcisetup();
	pcifixup();

	/*
	 * When argc is too big then it is probably a pointer, which could
	 * indicate that we were launched as a Linux kernel module using
	 * "bootm".
	 */
	if (argc > MAX_ARGS) {
		if (argv != NULL) {
			/*
			 * initrd image was loaded:
			 * check if it contains a valid altboot command line
			 */
			char *p = (char *)argv;

			if (strncmp(p, "altboot:", 8) == 0) {
				*p = 0;
				for (p = p + 8; *p >= ' '; p++);
				argc = parse_cmdline(new_argv, MAX_ARGS,
				    ((char *)argv) + 8, p);
				argv = new_argv;
			} else
				argc = 0;	/* boot default */
		} else {
			/* parse standard Linux bootargs */
			argc = parse_cmdline(new_argv, MAX_ARGS,
			    bootargs_start, bootargs_end);
			argv = new_argv;
		}
	}

	/* look for a PATA drive configuration string under the arguments */
	for (n = 1; n < argc; n++) {
		if (strncmp(argv[n], "ide:", 4) == 0 &&
		    argv[n][4] >= '0' && argv[n][4] <= '2') {
			drive_config = &argv[n][4];
			break;
		}
	}

//.........这里部分代码省略.........

static void
ahci_pci_attach(device_t parent, device_t self, void *aux)
{
	struct pci_attach_args *pa = aux;
	struct ahci_pci_softc *psc = device_private(self);
	struct ahci_softc *sc = &psc->ah_sc;
	const char *intrstr;
	bool ahci_cap_64bit;
	bool ahci_bad_64bit;
	pci_intr_handle_t intrhandle;

	sc->sc_atac.atac_dev = self;

	if (pci_mapreg_map(pa, AHCI_PCI_ABAR,
	    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
	    &sc->sc_ahcit, &sc->sc_ahcih, NULL, &sc->sc_ahcis) != 0) {
		aprint_error_dev(self, "can't map ahci registers\n");
		return;
	}
	psc->sc_pc = pa->pa_pc;
	psc->sc_pcitag = pa->pa_tag;

	pci_aprint_devinfo(pa, "AHCI disk controller");
	
	if (pci_intr_map(pa, &intrhandle) != 0) {
		aprint_error_dev(self, "couldn't map interrupt\n");
		return;
	}
	intrstr = pci_intr_string(pa->pa_pc, intrhandle);
	psc->sc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, ahci_intr, sc);
	if (psc->sc_ih == NULL) {
		aprint_error_dev(self, "couldn't establish interrupt\n");
		return;
	}
	aprint_normal_dev(self, "interrupting at %s\n",
	    intrstr ? intrstr : "unknown interrupt");

	sc->sc_dmat = pa->pa_dmat;

	sc->sc_ahci_quirks = ahci_pci_has_quirk(PCI_VENDOR(pa->pa_id),
					    PCI_PRODUCT(pa->pa_id));

	ahci_cap_64bit = (AHCI_READ(sc, AHCI_CAP) & AHCI_CAP_64BIT) != 0;
	ahci_bad_64bit = ((sc->sc_ahci_quirks & AHCI_PCI_QUIRK_BAD64) != 0);

	if (pci_dma64_available(pa) && ahci_cap_64bit) {
		if (!ahci_bad_64bit)
			sc->sc_dmat = pa->pa_dmat64;
		aprint_verbose_dev(self, "64-bit DMA%s\n",
		    (sc->sc_dmat == pa->pa_dmat) ? " unavailable" : "");
	}

	if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_RAID) {
		AHCIDEBUG_PRINT(("%s: RAID mode\n", AHCINAME(sc)), DEBUG_PROBE);
		sc->sc_atac_capflags = ATAC_CAP_RAID;
	} else {
		AHCIDEBUG_PRINT(("%s: SATA mode\n", AHCINAME(sc)), DEBUG_PROBE);
	}

	ahci_attach(sc);

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