xref: /src/sys/dev/pci/pccbb.c

/*	$NetBSD: pccbb.c,v 1.11 2000/01/13 08:54:20 joda Exp $	*/

/*
 * Copyright (c) 1998 and 1999 HAYAKAWA Koichi.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by HAYAKAWA Koichi.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
#define CBB_DEBUG
#define SHOW_REGS
#define PCCBB_PCMCIA_POLL
*/
/* #define CBB_DEBUG */

/*
#define CB_PCMCIA_POLL
#define CB_PCMCIA_POLL_ONLY
#define LEVEL2
*/

#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>

#include <machine/intr.h>
#include <machine/bus.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>

#include <dev/pci/pccbbreg.h>

#include <dev/cardbus/cardslotvar.h>

#include <dev/cardbus/cardbusvar.h>

#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>

#include <dev/ic/i82365reg.h>
#include <dev/ic/i82365var.h>
#include <dev/pci/pccbbvar.h>

#include "locators.h"


#ifndef __NetBSD_Version__
struct cfdriver cbb_cd = {
  NULL, "cbb", DV_DULL
};
#endif

#if defined CBB_DEBUG
#define DPRINTF(x) printf x
#define STATIC
#else
#define DPRINTF(x)
#define STATIC static
#endif


#ifdef __BROKEN_INDIRECT_CONFIG
int pcicbbmatch __P((struct device *, void *, void *));
#else
int pcicbbmatch __P((struct device *, struct cfdata *, void *));
#endif
void pccbbattach __P((struct device *, struct device *, void *));
int pccbbintr __P((void *));
static void pci113x_insert __P((void *));

static int pccbb_detect_card __P((struct pccbb_softc *));

static void pccbb_pcmcia_write __P((struct pcic_handle *, int, u_int8_t));
static u_int8_t pccbb_pcmcia_read __P((struct pcic_handle *, int));
#define Pcic_read(ph, reg) ((ph)->ph_read((ph), (reg)))
#define Pcic_write(ph, reg, val) ((ph)->ph_write((ph), (reg), (val)))


STATIC int cb_reset __P((struct pccbb_softc *));
STATIC int cb_detect_voltage __P((struct pccbb_softc *));
STATIC int cbbprint __P((void *, const char *));

static int cb_chipset __P((u_int32_t, char const **, int *));
STATIC void pccbb_pcmcia_attach_setup __P((struct pccbb_softc *, struct pcmciabus_attach_args *));
#if 0
STATIC void pccbb_pcmcia_attach_card __P((struct pcic_handle *));
STATIC void pccbb_pcmcia_detach_card __P((struct pcic_handle *, int));
STATIC void pccbb_pcmcia_deactivate_card __P((struct pcic_handle *));
#endif

STATIC int pccbb_ctrl __P((cardbus_chipset_tag_t, int));
STATIC int pccbb_power __P((cardbus_chipset_tag_t, int));
STATIC int pccbb_cardenable __P((struct pccbb_softc *sc, int function));
#if !rbus
static int pccbb_io_open __P((cardbus_chipset_tag_t, int, u_int32_t, u_int32_t));
static int pccbb_io_close __P((cardbus_chipset_tag_t, int));
static int pccbb_mem_open __P((cardbus_chipset_tag_t, int, u_int32_t, u_int32_t));
static int pccbb_mem_close __P((cardbus_chipset_tag_t, int));
#endif /* !rbus */
static void *pccbb_intr_establish __P((cardbus_chipset_tag_t, int irq, int level, int (* ih)(void *), void *sc));
static void pccbb_intr_disestablish __P((cardbus_chipset_tag_t ct, void *ih));

static cardbustag_t pccbb_make_tag __P((cardbus_chipset_tag_t, int, int, int));
static void pccbb_free_tag __P((cardbus_chipset_tag_t, cardbustag_t));
static cardbusreg_t pccbb_conf_read __P((cardbus_chipset_tag_t, cardbustag_t, int));
static void pccbb_conf_write __P((cardbus_chipset_tag_t, cardbustag_t, int, cardbusreg_t));
static void pccbb_chipinit __P((struct pccbb_softc *));


STATIC int pccbb_pcmcia_mem_alloc __P((pcmcia_chipset_handle_t, bus_size_t,
				       struct pcmcia_mem_handle *));
STATIC void pccbb_pcmcia_mem_free __P((pcmcia_chipset_handle_t,
	    struct pcmcia_mem_handle *));
STATIC int pccbb_pcmcia_mem_map __P((pcmcia_chipset_handle_t, int, bus_addr_t,
            bus_size_t, struct pcmcia_mem_handle *, bus_addr_t *, int *));
STATIC void pccbb_pcmcia_mem_unmap __P((pcmcia_chipset_handle_t, int));
STATIC int pccbb_pcmcia_io_alloc __P((pcmcia_chipset_handle_t, bus_addr_t,
	    bus_size_t, bus_size_t, struct pcmcia_io_handle *));
STATIC void pccbb_pcmcia_io_free __P((pcmcia_chipset_handle_t,
	    struct pcmcia_io_handle *));
STATIC int pccbb_pcmcia_io_map __P((pcmcia_chipset_handle_t, int, bus_addr_t,
	    bus_size_t, struct pcmcia_io_handle *, int *));
STATIC void pccbb_pcmcia_io_unmap __P((pcmcia_chipset_handle_t, int));
STATIC void *pccbb_pcmcia_intr_establish __P((pcmcia_chipset_handle_t,
	    struct pcmcia_function *, int, int (*) (void *), void *));
STATIC void pccbb_pcmcia_intr_disestablish __P((pcmcia_chipset_handle_t, void *));
STATIC void pccbb_pcmcia_socket_enable __P((pcmcia_chipset_handle_t));
STATIC void pccbb_pcmcia_socket_disable __P((pcmcia_chipset_handle_t));
STATIC int pccbb_pcmcia_card_detect __P((pcmcia_chipset_handle_t pch));

static void pccbb_pcmcia_do_io_map __P((struct pcic_handle *, int));
static void pccbb_pcmcia_wait_ready __P((struct pcic_handle *));
static void pccbb_pcmcia_do_mem_map __P((struct pcic_handle *, int));

/* bus-space allocation and disallocation functions */
#if rbus

static int pccbb_rbus_cb_space_alloc __P((cardbus_chipset_tag_t, rbus_tag_t,
					  bus_addr_t addr, bus_size_t size,
					  bus_addr_t mask, bus_size_t align,
					  int flags, bus_addr_t *addrp,
					  bus_space_handle_t *bshp));
static int pccbb_rbus_cb_space_free __P((cardbus_chipset_tag_t, rbus_tag_t,
					 bus_space_handle_t, bus_size_t));

#endif /* rbus */

#if rbus

static int pccbb_open_win __P((struct pccbb_softc *, bus_space_tag_t, bus_addr_t, bus_size_t, bus_space_handle_t, int flags));
static int pccbb_close_win __P((struct pccbb_softc *, bus_space_tag_t, bus_space_handle_t, bus_size_t));
static int pccbb_winlist_insert __P((struct pccbb_win_chain **, bus_addr_t,
				     bus_size_t, bus_space_handle_t, int));
static int pccbb_winlist_delete __P((struct pccbb_win_chain **,
				     bus_space_handle_t, bus_size_t));
static void pccbb_winset __P((bus_addr_t align, struct pccbb_softc *,
			      bus_space_tag_t));
void pccbb_winlist_show(struct pccbb_win_chain *);

#endif /* rbus */

/* for config_defer */
static void pccbb_pci_callback __P((struct device *));


#if defined SHOW_REGS
static void cb_show_regs __P((pci_chipset_tag_t pc, pcitag_t tag, bus_space_tag_t memt, bus_space_handle_t memh));
#endif



struct cfattach cbb_pci_ca = {
	sizeof(struct pccbb_softc), pcicbbmatch, pccbbattach
};


static struct pcmcia_chip_functions pccbb_pcmcia_funcs = {
  pccbb_pcmcia_mem_alloc,
  pccbb_pcmcia_mem_free,
  pccbb_pcmcia_mem_map,
  pccbb_pcmcia_mem_unmap,
  pccbb_pcmcia_io_alloc,
  pccbb_pcmcia_io_free,
  pccbb_pcmcia_io_map,
  pccbb_pcmcia_io_unmap,
  pccbb_pcmcia_intr_establish,
  pccbb_pcmcia_intr_disestablish,
  pccbb_pcmcia_socket_enable,
  pccbb_pcmcia_socket_disable,
  pccbb_pcmcia_card_detect
};

#if rbus
static struct cardbus_functions pccbb_funcs = {
  pccbb_rbus_cb_space_alloc,
  pccbb_rbus_cb_space_free,
  pccbb_intr_establish,
  pccbb_intr_disestablish,
  pccbb_ctrl,
  pccbb_power,
  pccbb_make_tag,
  pccbb_free_tag,
  pccbb_conf_read,
  pccbb_conf_write,
};
#else
static struct cardbus_functions pccbb_funcs = {
  pccbb_ctrl,
  pccbb_power,
  pccbb_mem_open,
  pccbb_mem_close,
  pccbb_io_open,
  pccbb_io_close,
  pccbb_intr_establish,
  pccbb_intr_disestablish,
  pccbb_make_tag,
  pccbb_conf_read,
  pccbb_conf_write,
};
#endif




int
pcicbbmatch(parent, match, aux)
     struct device *parent;
#ifdef __BROKEN_INDIRECT_CONFIG
     void *match;
#else
     struct cfdata *match;
#endif
     void *aux;
{
    struct pci_attach_args *pa = (struct pci_attach_args *)aux;

    if(PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
       PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_CARDBUS &&
       PCI_INTERFACE(pa->pa_class) == 0) {
	return 1;
    }

    return 0;
}


#define MAKEID(vendor, prod) (((vendor) << PCI_VENDOR_SHIFT) \
                              | ((prod) << PCI_PRODUCT_SHIFT))


struct yenta_chipinfo {
  pcireg_t yc_id;		/* vendor tag | product tag */
  const char *yc_name;
  int yc_chiptype;
  int yc_flags;
} yc_chipsets[] = {
  /* Texas Instruments chips */
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1130), "TI1130", CB_TI113X,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1131), "TI1131", CB_TI113X,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},

  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1250), "TI1250", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1220), "TI1220", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1221), "TI1221", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1225), "TI1225", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1251), "TI1251", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1251B), "TI1251B", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1211), "TI1211", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1420), "TI1420", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1450), "TI1450", CB_TI12XX,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI2030), "TI2030", CB_UNKNOWN,
     PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32},

  /* Ricoh chips */
  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C475), "Rx5C475",
     CB_RX5C47X, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_RL5C476), "RL5C476",
     CB_RX5C47X, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C477), "Rx5C477",
     CB_RX5C47X, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C478), "Rx5C478",
     CB_RX5C47X, PCCBB_PCMCIA_MEM_32},

  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C465), "Rx5C465",
     CB_RX5C46X, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C466), "Rx5C466",
     CB_RX5C46X, PCCBB_PCMCIA_MEM_32},

  /* Toshiba products */
  {MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC95), "ToPIC95",
     CB_TOPIC95, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC95B), "ToPIC95B",
     CB_TOPIC95B, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC97), "ToPIC97",
     CB_TOPIC97, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC100), "ToPIC100",
     CB_TOPIC97, PCCBB_PCMCIA_MEM_32},

  /* Cirrus Logic products */
  {MAKEID(PCI_VENDOR_CIRRUS, PCI_PRODUCT_CIRRUS_CL_PD6832), "CL-PD683X",
     CB_CIRRUS, PCCBB_PCMCIA_MEM_32},
  {MAKEID(PCI_VENDOR_CIRRUS, PCI_PRODUCT_CIRRUS_CL_PD6833), "CL-PD683X",
     CB_CIRRUS, PCCBB_PCMCIA_MEM_32},

  /* sentinel, or Generic chip */
  {0 /* null id */, "unknown", CB_UNKNOWN, PCCBB_PCMCIA_MEM_32},
};



static int
cb_chipset(pci_id, namep, flagp)
     u_int32_t pci_id;
     char const **namep;
     int *flagp;
{
  int loopend = sizeof(yc_chipsets)/sizeof(yc_chipsets[0]);
  struct yenta_chipinfo *ycp, *ycend;

  ycend = yc_chipsets + loopend;

  for (ycp =yc_chipsets; ycp < ycend && pci_id != ycp->yc_id; ++ycp);

  if (ycp == ycend) {
    /* not found */
    ycp = yc_chipsets + loopend - 1; /* to point the sentinel */
  }

  if (namep != NULL) {
    *namep = ycp->yc_name;
  }

  if (flagp != NULL) {
    *flagp = ycp->yc_flags;
  }

  return ycp->yc_chiptype;
}





void
pccbbattach(parent, self, aux)
     struct device *parent;
     struct device *self;
     void *aux;
{
  struct pccbb_softc *sc = (void *)self;
  struct pci_attach_args *pa = aux;
  pci_chipset_tag_t pc = pa->pa_pc;
  pcireg_t sock_base, busreg;
  bus_addr_t sockbase;
  char const *name;
  int flags;

  sc->sc_chipset = cb_chipset(pa->pa_id, &name, &flags);
  printf(" (%s), chipflags %d\n", name, flags);

#if rbus
  sc->sc_rbus_iot = rbus_pccbb_parent_io(pa);
  sc->sc_rbus_memt = rbus_pccbb_parent_mem(pa);
#endif /* rbus */

  sc->sc_base_memh = 0;

  /*
   * MAP socket registers and ExCA registers on memory-space
   * When no valid address is set on socket base registers (on pci
   * config space), get it not polite way.
   */
  sock_base = pci_conf_read(pc, pa->pa_tag, PCI_SOCKBASE);

  if (PCI_MAPREG_MEM_ADDR(sock_base) >= 0x100000 &&
      PCI_MAPREG_MEM_ADDR(sock_base) != 0xfffffff0) {
    /* The address must be valid. */
    if (pci_mapreg_map(pa, PCI_SOCKBASE, PCI_MAPREG_TYPE_MEM, 0,
		       &sc->sc_base_memt, &sc->sc_base_memh, &sockbase,
		       NULL)) {
      printf("%s: can't map socket base address 0x%x\n", sc->sc_dev.dv_xname,
	     sock_base);
      /* I think it's funny: socket base registers must be mapped on
	 memory space, but ... */
      if (pci_mapreg_map(pa, PCI_SOCKBASE, PCI_MAPREG_TYPE_IO, 0,
			 &sc->sc_base_memt, &sc->sc_base_memh,
			 &sockbase, NULL)) {
	printf("%s: can't map socket base address 0x%lx: io mode\n",
	       sc->sc_dev.dv_xname, sockbase);
	/* give up... allocate register space via rbus. */
	sc->sc_base_memh = 0;
	pci_conf_write(pc, pa->pa_tag, PCI_SOCKBASE, 0);
      }
    } else {
      DPRINTF(("%s: socket base address 0x%lx\n",
	       sc->sc_dev.dv_xname, sockbase));
    }
  }


  sc->sc_mem_start = 0;		/* XXX */
  sc->sc_mem_end = 0xffffffff;	/* XXX */

  /*
   * When interrupt isn't routed correctly, give up probing cbb and do
   * not kill pcic-compatible port.
   */
  if ((0 == pa->pa_intrline) || (255 == pa->pa_intrline)) {
    printf(" Do not use %s because of intr unconfig.\n", sc->sc_dev.dv_xname);
    return;
  }

  /*
   * When bus number isn't set correctly, give up using 32-bit CardBus
   * mode.
   */
  busreg = pci_conf_read(pc, pa->pa_tag, PCI_BUSNUM);
#if notyet
  if (((busreg >> 8) & 0xff) == 0) {
    printf(" CardBus on %s will not be configured, because of bus no unconfig.\n", sc->sc_dev.dv_xname);
    flags |= PCCBB_PCMCIA_16BITONLY;
  }
#endif

  /* pccbb_machdep.c end */


#if defined CBB_DEBUG
  {
    static char *intrname[5] = {"NON", "A", "B", "C", "D"};
    printf(" intrpin %s, intrtag %d\n", intrname[pa->pa_intrpin],
	     pa->pa_intrline);
  }
#endif


  /* setup softc */
  sc->sc_pc = pc;
  sc->sc_iot = pa->pa_iot;
  sc->sc_memt = pa->pa_memt;
  sc->sc_dmat = pa->pa_dmat;
  sc->sc_tag = pa->pa_tag;
  sc->sc_function = pa->pa_function;

  sc->sc_intrline = pa->pa_intrline;
  sc->sc_intrtag = pa->pa_intrtag;
  sc->sc_intrpin = pa->pa_intrpin;

  sc->sc_pcmcia_flags = flags;	/* set PCMCIA facility */

  /* bus bridge initialisation */
  pccbb_chipinit(sc);

#if __NetBSD_Version__ > 103060000
  config_defer(self, pccbb_pci_callback);
#else
  pccbb_pci_callback(self);
#endif
}




static void
pccbb_pci_callback(self)
     struct device *self;
{
  struct pccbb_softc *sc = (void *)self;
  pci_chipset_tag_t pc = sc->sc_pc;
  bus_space_tag_t base_memt;
  bus_space_handle_t base_memh;
  u_int32_t maskreg;
  pci_intr_handle_t ih;
  const char *intrstr = NULL;
  bus_addr_t sockbase;
  struct cbslot_attach_args cba;
  struct pcmciabus_attach_args paa;
  struct cardslot_attach_args caa;
  struct cardslot_softc *csc;

  if (0 == sc->sc_base_memh) {
    /* The socket registers aren't mapped correctly. */
#if rbus
    if (rbus_space_alloc(sc->sc_rbus_memt,
			 0, /* address: I don't mind where it is mapped */
			 0x1000, /* size */
			 0x0fff, /* mask */
			 (sc->sc_chipset == CB_RX5C47X || sc->sc_chipset == CB_TI113X) ? 0x10000 : 0x1000, /* align */
			 0, /* flags */
			 &sockbase, &sc->sc_base_memh)) {
      return;
    }
    sc->sc_base_memt = sc->sc_memt;
    pci_conf_write(pc, sc->sc_tag, PCI_SOCKBASE, sockbase);
    DPRINTF(("%s: CardBus resister address 0x%lx -> 0x%x\n",
	     sc->sc_dev.dv_xname, sockbase, pci_conf_read(pc, sc->sc_tag, PCI_SOCKBASE)));
#else
    sc->sc_base_memt = sc->sc_memt;
#if !defined CBB_PCI_BASE
#define CBB_PCI_BASE 0x20000000
#endif
    if (bus_space_alloc(sc->sc_base_memt, CBB_PCI_BASE, 0xffffffff,
			0x1000, /* size */
			0x1000, /* alignment */
			0,      /* boundary */
			0,      /* flags */
			&sockbase, &sc->sc_base_memh)) {
      /* cannot allocate memory space */
      return;
    }
    pci_conf_write(pc, sc->sc_tag, PCI_SOCKBASE, sockbase);
    DPRINTF(("%s: CardBus resister address 0x%x -> 0x%x\n",sc->sc_dev.dv_xname,
	     sock_base, pci_conf_read(pc, sc->sc_tag, PCI_SOCKBASE)));
#endif
  }

  base_memt = sc->sc_base_memt;	/* socket regs memory tag */
  base_memh = sc->sc_base_memh;	/* socket regs memory handle */


  /* CSC Interrupt: Card detect interrupt on */
  maskreg = bus_space_read_4(base_memt, base_memh, CB_SOCKET_MASK);
  maskreg |= CB_SOCKET_MASK_CD;	/* Card detect intr is turned on. */
  bus_space_write_4(base_memt, base_memh, CB_SOCKET_MASK, maskreg);
  /* reset interrupt */
  bus_space_write_4(base_memt, base_memh, CB_SOCKET_EVENT,
		    bus_space_read_4(base_memt, base_memh, CB_SOCKET_EVENT));


  /* Map and establish the interrupt. */
  if (pci_intr_map(pc, sc->sc_intrtag, sc->sc_intrpin,
		   sc->sc_intrline, &ih)) {
    printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    return;
  }
  intrstr = pci_intr_string(pc, ih);
  sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, pccbbintr, sc);

  if (sc->sc_ih == NULL) {
    printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
    if (intrstr != NULL) {
      printf(" at %s", intrstr);
    }
    printf("\n");
    return;
  }

  printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);

  {
    u_int32_t sockstat = bus_space_read_4(base_memt,base_memh, CB_SOCKET_STAT);
    if (0 == (sockstat & CB_SOCKET_STAT_CD)) { /* card exist */
      sc->sc_flags |= CBB_CARDEXIST;
    }
  }

  /*
   * attach cardbus
   */
  if (!(sc->sc_pcmcia_flags & PCCBB_PCMCIA_16BITONLY)) {
    pcireg_t busreg = pci_conf_read(pc, sc->sc_tag, PCI_BUSNUM);
    pcireg_t bhlc = pci_conf_read(pc, sc->sc_tag, PCI_BHLC_REG);

    /* initialise cbslot_attach */
    cba.cba_busname = "cardbus";
    cba.cba_iot = sc->sc_iot;
    cba.cba_memt = sc->sc_memt;
    cba.cba_dmat = sc->sc_dmat;
    cba.cba_function = 0;
    cba.cba_bus = (busreg >> 8) & 0x0ff;
    cba.cba_cc = (void *)sc;
    cba.cba_cf = &pccbb_funcs;
    cba.cba_intrline = sc->sc_intrline;

#if rbus
    cba.cba_rbus_iot = sc->sc_rbus_iot;
    cba.cba_rbus_memt = sc->sc_rbus_memt;
#endif

    cba.cba_cacheline = PCI_CACHELINE(bhlc);
    cba.cba_lattimer = PCI_CB_LATENCY(busreg);

    printf("%s: cacheline 0x%x lattimer 0x%x\n", sc->sc_dev.dv_xname,
	   cba.cba_cacheline, cba.cba_lattimer);
    printf("%s: bhlc 0x%x lscp 0x%x\n", sc->sc_dev.dv_xname,
	   bhlc, busreg);
#if defined SHOW_REGS
    cb_show_regs(sc->sc_pc, sc->sc_tag, sc->sc_base_memt, sc->sc_base_memh);
#endif
  }

  pccbb_pcmcia_attach_setup(sc, &paa);
  caa.caa_cb_attach = NULL;
  if (!(sc->sc_pcmcia_flags & PCCBB_PCMCIA_16BITONLY)) {
    caa.caa_cb_attach = &cba;
  }
  caa.caa_16_attach = &paa;
  caa.caa_ph = &sc->sc_pcmcia_h;

  if (NULL != (csc = (void *)config_found(self, &caa, cbbprint))) {
    DPRINTF(("pccbbattach: found cardslot\n"));
    sc->sc_csc = csc;
  }

  return;
}



static void
pccbb_chipinit(sc)
     struct pccbb_softc *sc;
{
  pci_chipset_tag_t pc = sc->sc_pc;
  pcitag_t tag = sc->sc_tag;
  bus_space_tag_t base_memt = sc->sc_base_memt;	/* socket regs memory tag */
  bus_space_handle_t base_memh = sc->sc_base_memh; /* socket regs memory handle */
  pcireg_t cbctrl;

  /*
   * Set PCI command reg.
   * Some laptop's BIOSes (i.e. TICO) do not enable CardBus chip.
   */
  {
    pcireg_t command = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);

    /* I believe it is harmless. */
    command |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
		PCI_COMMAND_MASTER_ENABLE);
    pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, command);
  }

  /*
   * Set CardBus latency timer
   */
  {
    pcireg_t pci_lscp = pci_conf_read(pc, tag, PCI_CB_LSCP_REG);
    if (PCI_CB_LATENCY(pci_lscp) < 0x20) {
      pci_lscp &= ~(PCI_CB_LATENCY_MASK << PCI_CB_LATENCY_SHIFT);
      pci_lscp |= (0x20 << PCI_CB_LATENCY_SHIFT);
      pci_conf_write(pc, tag, PCI_CB_LSCP_REG, pci_lscp);
    }
    DPRINTF(("CardBus latency timer 0x%x (%x)\n", PCI_CB_LATENCY(pci_lscp),
	     pci_conf_read(pc, tag, PCI_CB_LSCP_REG)));
  }

  /*
   * Set PCI latency timer
   */
  {
    pcireg_t pci_bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG);
    if (PCI_LATTIMER(pci_bhlc) < 0x10) {
      pci_bhlc &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
      pci_bhlc |= (0x10 << PCI_LATTIMER_SHIFT);
      pci_conf_write(pc, tag, PCI_BHLC_REG, pci_bhlc);
    }
    DPRINTF(("PCI latency timer 0x%x (%x)\n", PCI_LATTIMER(pci_bhlc),
	     pci_conf_read(pc, tag, PCI_BHLC_REG)));
  }

  /* disable Legacy IO */

  switch (sc->sc_chipset) {
  case CB_RX5C46X:		/* fallthrogh */
#if 0
  case CB_RX5C47X:
#endif
    /*
     * The legacy pcic io-port on Ricoh CardBus bridges cannot be
     * disabled by substituting 0 into PCI_LEGACY register.  Ricoh
     * CardBus bridges have special bits on Bridge control reg (addr
     * 0x3e on PCI config space).
     */
    {
      pcireg_t bcri = pci_conf_read(pc, tag, PCI_BCR_INTR);
      bcri &= ~(CB_BCRI_RL_3E0_ENA | CB_BCRI_RL_3E2_ENA);
      pci_conf_write(pc, tag, PCI_BCR_INTR, bcri);
    }
    break;
  default:
    /* XXX: I don't know proper way to kill Legacy IO properly. */
    pci_conf_write(pc, tag, PCI_LEGACY, 0x0);
    break;
  }



  /*
   * Interrupt routing: use PCI interrupt
   */
  {
    u_int32_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
    bcr &= ~CB_BCR_INTR_IREQ_ENABLE; /* use PCI Intr */
    bcr |= CB_BCR_WRITE_POST_ENABLE; /* enable write post */
    pci_conf_write(pc, tag, PCI_BCR_INTR, bcr);
  }

  if (CB_TI113X == sc->sc_chipset) {
    cbctrl = pci_conf_read(pc, tag, PCI_CBCTRL);
    if (0 == sc->sc_function) {
      cbctrl |= PCI113X_CBCTRL_PCI_IRQ_ENA;
    }
    cbctrl |= PCI113X_CBCTRL_PCI_IRQ_ENA;	/* XXX: bug in PCI113X */
    cbctrl |= PCI113X_CBCTRL_PCI_CSC; /* CSC intr enable */
    cbctrl &= ~PCI113X_CBCTRL_PCI_INTR; /* functional intr prohibit */
    cbctrl &= ~PCI113X_CBCTRL_INT_MASK;	/* prohibit ISA routing */
    pci_conf_write(pc, tag, PCI_CBCTRL, cbctrl);

    /* set ExCA regs: PCI113X required to be set bit 4 at Interrupt
       and General Register, which is IRQ Enable Register, and clear
       bit 3:0 to zero in order to route CSC interrupt to PCI
       interrupt pin. */
    bus_space_write_1(base_memt, base_memh, 0x0803, 0x10);
    /* set ExCA regs: prohibit all pcmcia-style CSC intr. */
    bus_space_write_1(base_memt, base_memh, 0x0805, 0x00);
#if 1
    DPRINTF(("ExCA regs:"));
    DPRINTF((" 0x803: %02x", bus_space_read_1(base_memt, base_memh, 0x803)));
    DPRINTF((" 0x805: %02x", bus_space_read_1(base_memt, base_memh, 0x805)));
    DPRINTF((" 0x81e: %02x\n", bus_space_read_1(base_memt,base_memh,0x81e)));
#endif
  } else if (sc->sc_chipset == CB_TI12XX) {
    cbctrl = pci_conf_read(pc, tag, PCI_CBCTRL);
    cbctrl &= ~PCI12XX_CBCTRL_INT_MASK;	/* intr routing reset */
    pci_conf_write(pc, tag, PCI_CBCTRL, cbctrl);
    /*
     * set ExCA regs: PCI12XX required to be set bit 4 at Interrupt
     * and General Register, which is IRQ Enable Register, and clear
     * bit 3:0 to zero in order to route CSC interrupt to PCI
     * interrupt pin.
     */
    bus_space_write_1(base_memt, base_memh, 0x0803, 0x10);
    /* set ExCA regs: prohibit all pcmcia-style CSC intr. */
    bus_space_write_1(base_memt, base_memh, 0x0805, 0x00);
  } else if (sc->sc_chipset == CB_TOPIC95B) {
    cardbusreg_t sock_ctrl, slot_ctrl;

    sock_ctrl = pci_conf_read(pc, tag, TOPIC_SOCKET_CTRL);
    pci_conf_write(pc, tag, TOPIC_SOCKET_CTRL,
		   sock_ctrl | TOPIC_SOCKET_CTRL_SCR_IRQSEL);

    slot_ctrl = pci_conf_read(pc, tag, TOPIC_SLOT_CTRL);
    DPRINTF(("%s: topic slot ctrl reg 0x%x -> ", sc->sc_dev.dv_xname,
	     slot_ctrl));
    slot_ctrl |= (TOPIC_SLOT_CTRL_SLOTON | TOPIC_SLOT_CTRL_SLOTEN |
		  TOPIC_SLOT_CTRL_ID_LOCK);
    slot_ctrl |= TOPIC_SLOT_CTRL_CARDBUS;
    slot_ctrl &= ~TOPIC_SLOT_CTRL_SWDETECT;
    pci_conf_write(pc, tag, TOPIC_SLOT_CTRL, slot_ctrl);
    DPRINTF(("0x%x\n", slot_ctrl));
  }

  /* close all memory and io windows */
  pci_conf_write(pc, tag, PCI_CB_MEMBASE0, 0xffffffff);
  pci_conf_write(pc, tag, PCI_CB_MEMLIMIT0, 0);
  pci_conf_write(pc, tag, PCI_CB_MEMBASE1, 0xffffffff);
  pci_conf_write(pc, tag, PCI_CB_MEMLIMIT1, 0);
  pci_conf_write(pc, tag, PCI_CB_IOBASE0, 0xffffffff);
  pci_conf_write(pc, tag, PCI_CB_IOLIMIT0, 0);
  pci_conf_write(pc, tag, PCI_CB_IOBASE1, 0xffffffff);
  pci_conf_write(pc, tag, PCI_CB_IOLIMIT1, 0);

  return;
}



/*
 * attach pccard bus
 */
STATIC void
pccbb_pcmcia_attach_setup(sc, paa)
     struct pccbb_softc *sc;
     struct pcmciabus_attach_args *paa;
{
  struct pcic_handle *ph = &sc->sc_pcmcia_h;
#if rbus
  rbus_tag_t rb;
#endif

  /* initialise pcmcia part in pccbb_softc */
  ph->ph_parent = (struct device *)sc;
  ph->sock = sc->sc_function;
  ph->flags = 0;
  ph->shutdown = 0;
  ph->ih_irq = sc->sc_intrline;
  ph->ph_bus_t = sc->sc_base_memt;
  ph->ph_bus_h = sc->sc_base_memh;
  ph->ph_read = pccbb_pcmcia_read;
  ph->ph_write = pccbb_pcmcia_write;
  sc->sc_pct = &pccbb_pcmcia_funcs;

  Pcic_write(ph, PCIC_CSC_INTR, 0);
  Pcic_read(ph, PCIC_CSC);

  /* initialise pcmcia bus attachment */
  paa->paa_busname = "pcmcia";
  paa->pct = sc->sc_pct;
  paa->pch = ph;
  paa->iobase = 0;		/* I don't use them */
  paa->iosize = 0;
#if rbus
  rb = ((struct pccbb_softc *)(ph->ph_parent))->sc_rbus_iot;
  paa->iobase = rb->rb_start + rb->rb_offset;
  paa->iosize = rb->rb_end - rb->rb_start;
#endif

  return;
}


#if 0
STATIC void
pccbb_pcmcia_attach_card(ph)
     struct pcic_handle *ph;
{
  if (ph->flags & PCIC_FLAG_CARDP) {
    panic("pccbb_pcmcia_attach_card: already attached");
  }

  /* call the MI attach function */
  pcmcia_card_attach(ph->pcmcia);

  ph->flags |= PCIC_FLAG_CARDP;
}


STATIC void
pccbb_pcmcia_detach_card(ph, flags)
     struct pcic_handle *ph;
     int flags;
{
  if (!(ph->flags & PCIC_FLAG_CARDP)) {
    panic("pccbb_pcmcia_detach_card: already detached");
  }

  ph->flags &= ~PCIC_FLAG_CARDP;

  /* call the MI detach function */
  pcmcia_card_detach(ph->pcmcia, flags);
}
#endif




/*
 * int pccbbintr(arg)
 *    void *arg;
 *   This routine handles the interrupt from Yenta PCI-CardBus bridge
 *   itself.
 */
int
pccbbintr(arg)
     void *arg;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)arg;
  u_int32_t sockevent;
  bus_space_tag_t memt = sc->sc_base_memt;
  bus_space_handle_t memh = sc->sc_base_memh;
  u_int32_t sockstate;

  sockevent = bus_space_read_4(memt, memh, CB_SOCKET_EVENT);
  if (0 == sockevent) {		/* not for me */
    return 0;
  } else {
    bus_space_write_4(memt, memh, CB_SOCKET_EVENT, sockevent); /* reset bit */
  }
  sockstate = bus_space_read_4(memt, memh, CB_SOCKET_STAT);

  if (sockevent & CB_SOCKET_EVENT_CD) {
    if (CB_SOCKET_STAT_CD == (sockstate & CB_SOCKET_STAT_CD)) {
      /* A card should be removed. */
      if (sc->sc_flags & CBB_CARDEXIST) {
	DPRINTF(("%s: 0x%08x", sc->sc_dev.dv_xname, sockevent));
	DPRINTF((" card removed, 0x%08x\n", sockstate));
	sc->sc_flags &= ~CBB_CARDEXIST;
	if (sc->sc_csc->sc_status & CARDSLOT_STATUS_CARD_16) {
#if 0
	  struct pcic_handle *ph = &sc->sc_pcmcia_h;

	  pcmcia_card_deactivate(ph->pcmcia);
	  pccbb_pcmcia_socket_disable(ph);
	  pccbb_pcmcia_detach_card(ph, DETACH_FORCE);
#endif
	  cardslot_event_throw(sc->sc_csc, CARDSLOT_EVENT_REMOVAL_16);
	} else if (sc->sc_csc->sc_status & CARDSLOT_STATUS_CARD_CB) {
	  /* Cardbus intr removed */
	  cardslot_event_throw(sc->sc_csc, CARDSLOT_EVENT_REMOVAL_CB);
	}
      }
    } else if (0x00 == (sockstate & CB_SOCKET_STAT_CD)) {
      if (sc->sc_flags & CBB_INSERTING) {
	untimeout(pci113x_insert, sc);
      }
      timeout(pci113x_insert, sc, hz/10);
      sc->sc_flags |= CBB_INSERTING;
    }
  } else {
    DPRINTF(("%s: sockevent = %b\n",
	     sc->sc_dev.dv_xname, sockevent, PCCBB_SOCKEVENT_BITS));
    DPRINTF(("%s: sockstate = %b\n",
	     sc->sc_dev.dv_xname,
	     sockstate, PCCBB_SOCKSTATE_BITS));
  }

  return 1;
}



static void
pci113x_insert(arg)
     void *arg;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)arg;
  u_int32_t sockevent, sockstate;

  sockevent = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh,
			       CB_SOCKET_EVENT);
  sockstate = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh,
			       CB_SOCKET_STAT);

  if (0 == (sockstate & CB_SOCKET_STAT_CD)) { /* card exist */
    DPRINTF(("%s: 0x%08x", sc->sc_dev.dv_xname, sockevent));
    DPRINTF((" card inserted, 0x%08x\n", sockstate));
    sc->sc_flags |= CBB_CARDEXIST;
    /* call pccard intterupt handler here */
    if (sockstate & CB_SOCKET_STAT_16BIT) {
      /* 16-bit card found */
/*      pccbb_pcmcia_attach_card(&sc->sc_pcmcia_h); */
      cardslot_event_throw(sc->sc_csc, CARDSLOT_EVENT_INSERTION_16);
    } else if (sockstate & CB_SOCKET_STAT_CB) {
      /* cardbus card fuond */
/*      cardbus_attach_card(sc->sc_csc); */
      cardslot_event_throw(sc->sc_csc, CARDSLOT_EVENT_INSERTION_CB);
    } else {
      /* who are you? */
    }
  } else {
    timeout(pci113x_insert, sc, hz/10);
  }
}




#define PCCBB_PCMCIA_OFFSET 0x800
static u_int8_t
pccbb_pcmcia_read(ph, reg)
     struct pcic_handle *ph;
     int reg;
{
  return bus_space_read_1(ph->ph_bus_t, ph->ph_bus_h, PCCBB_PCMCIA_OFFSET + reg);
}



static void
pccbb_pcmcia_write(ph, reg, val)
     struct pcic_handle *ph;
     int reg;
     u_int8_t val;
{
  bus_space_write_1(ph->ph_bus_t, ph->ph_bus_h, PCCBB_PCMCIA_OFFSET + reg, val);

  return;
}




/*
 * STATIC int pccbb_ctrl(cardbus_chipset_tag_t, int)
 */
STATIC int
pccbb_ctrl(ct, command)
     cardbus_chipset_tag_t ct;
     int command;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;

  switch(command) {
  case CARDBUS_CD:
    if (2 == pccbb_detect_card(sc)) {
      int retval = 0;
      int status = cb_detect_voltage(sc);
      if (PCCARD_VCC_5V & status) {
	retval |= CARDBUS_5V_CARD;
      }
      if (PCCARD_VCC_3V & status) {
	retval |= CARDBUS_3V_CARD;
      }
      if (PCCARD_VCC_XV & status) {
	retval |= CARDBUS_XV_CARD;
      }
      if (PCCARD_VCC_YV & status) {
	retval |= CARDBUS_YV_CARD;
      }
      return retval;
    } else {
      return 0;
    }
    break;
  case CARDBUS_RESET:
    return cb_reset(sc);
    break;
  case CARDBUS_IO_ENABLE:	/* fallthrough */
  case CARDBUS_IO_DISABLE:	/* fallthrough */
  case CARDBUS_MEM_ENABLE:	/* fallthrough */
  case CARDBUS_MEM_DISABLE:	/* fallthrough */
  case CARDBUS_BM_ENABLE:	/* fallthrough */
  case CARDBUS_BM_DISABLE:	/* fallthrough */
    return pccbb_cardenable(sc, command);
    break;
  }

  return 0;
}



/*
 * STATIC int pccbb_power(cardbus_chipset_tag_t, int)
 *   This function returns true when it succeeds and returns false when
 *   it fails.
 */
STATIC int
pccbb_power(ct, command)
     cardbus_chipset_tag_t ct;
     int command;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;

  u_int32_t status, sock_ctrl;
  bus_space_tag_t memt = sc->sc_base_memt;
  bus_space_handle_t memh = sc->sc_base_memh;

  DPRINTF(("pccbb_power: %s and %s [%x]\n",
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_UC ? "CARDBUS_VCC_UC" :
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_5V ? "CARDBUS_VCC_5V" :
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_3V ? "CARDBUS_VCC_3V" :
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_XV ? "CARDBUS_VCC_XV" :
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_YV ? "CARDBUS_VCC_YV" :
	   (command & CARDBUS_VCCMASK) == CARDBUS_VCC_0V ? "CARDBUS_VCC_0V" :
	   "UNKNOWN",
	   (command & CARDBUS_VPPMASK) == CARDBUS_VPP_UC ? "CARDBUS_VPP_UC" :
	   (command & CARDBUS_VPPMASK) == CARDBUS_VPP_12V ? "CARDBUS_VPP_12V" :
	   (command & CARDBUS_VPPMASK) == CARDBUS_VPP_VCC ? "CARDBUS_VPP_VCC" :
	   (command & CARDBUS_VPPMASK) == CARDBUS_VPP_0V ? "CARDBUS_VPP_0V" :
	   "UNKNOWN",
	   command));

  status = bus_space_read_4(memt, memh, CB_SOCKET_STAT);
  sock_ctrl = bus_space_read_4(memt, memh, CB_SOCKET_CTRL);

  switch (command & CARDBUS_VCCMASK) {
  case CARDBUS_VCC_UC:
    break;
  case CARDBUS_VCC_5V:
    if (CB_SOCKET_STAT_5VCARD & status) { /* check 5 V card */
      sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
      sock_ctrl |= CB_SOCKET_CTRL_VCC_5V;
    } else {
      printf("%s: BAD voltage request: no 5 V card\n", sc->sc_dev.dv_xname);
    }
    break;
  case CARDBUS_VCC_3V:
    if (CB_SOCKET_STAT_3VCARD & status) {
      sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
      sock_ctrl |= CB_SOCKET_CTRL_VCC_3V;
    } else {
      printf("%s: BAD voltage request: no 3.3 V card\n", sc->sc_dev.dv_xname);
    }
    break;
  case CARDBUS_VCC_0V:
    sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK;
    break;
  default:
    return 0;			/* power NEVER changed */
    break;
  }

  switch (command & CARDBUS_VPPMASK) {
  case CARDBUS_VPP_UC:
    break;
  case CARDBUS_VPP_0V:
    sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK;
    break;
  case CARDBUS_VPP_VCC:
    sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK;
    sock_ctrl |= ((sock_ctrl >> 4) & 0x07);
    break;
  case CARDBUS_VPP_12V:
    sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK;
    sock_ctrl |= CB_SOCKET_CTRL_VPP_12V;
    break;
  }

#if 0
  DPRINTF(("sock_ctrl: %x\n", sock_ctrl));
#endif
  bus_space_write_4(memt, memh, CB_SOCKET_CTRL, sock_ctrl);
  status = bus_space_read_4(memt, memh, CB_SOCKET_STAT);

  delay(20*1000);			/* wait 20 ms: Vcc setup time */
  /* XXX
     delay 200 ms: though the standard defines that the Vcc set-up time
     is 20 ms, some PC-Card bridge requires longer duration.
  */
  delay(200*1000);


  if (status & CB_SOCKET_STAT_BADVCC) {		/* bad Vcc request */
    printf("%s: bad Vcc request. sock_ctrl 0x%x, sock_status 0x%x\n",
	   sc->sc_dev.dv_xname, sock_ctrl ,status);
    DPRINTF(("pccbb_power: %s and %s [%x]\n",
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_UC ? "CARDBUS_VCC_UC" :
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_5V ? "CARDBUS_VCC_5V":
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_3V ? "CARDBUS_VCC_3V":
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_XV ? "CARDBUS_VCC_XV":
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_YV ? "CARDBUS_VCC_YV":
	     (command & CARDBUS_VCCMASK) == CARDBUS_VCC_0V ? "CARDBUS_VCC_0V":
	     "UNKNOWN",
	     (command & CARDBUS_VPPMASK) == CARDBUS_VPP_UC ? "CARDBUS_VPP_UC":
	     (command & CARDBUS_VPPMASK) == CARDBUS_VPP_12V ?"CARDBUS_VPP_12V":
	     (command & CARDBUS_VPPMASK) == CARDBUS_VPP_VCC ?"CARDBUS_VPP_VCC":
	     (command & CARDBUS_VPPMASK) == CARDBUS_VPP_0V ? "CARDBUS_VPP_0V" :
	     "UNKNOWN",
	     command));
#if 0
    if (command == (CARDBUS_VCC_0V | CARDBUS_VPP_0V)) {
      u_int32_t force = bus_space_read_4(memt, memh, CB_SOCKET_FORCE);
      /* Reset Bad Vcc request */
      force &= ~CB_SOCKET_FORCE_BADVCC;
      bus_space_write_4(memt, memh, CB_SOCKET_FORCE, force);
      printf("new status 0x%x\n", bus_space_read_4(memt, memh,CB_SOCKET_STAT));
      return 1;
    }
#endif
    return 0;
  }
  return 1;		/* power changed correctly */
}






#if defined CB_PCMCIA_POLL
struct cb_poll_str {
  void *arg;
  int (* func) __P((void *));
  int level;
  pccard_chipset_tag_t ct;
  int count;
};

static struct cb_poll_str cb_poll[10];
static int cb_poll_n = 0;

static void cb_pcmcia_poll __P((void *arg));

static void
cb_pcmcia_poll(arg)
     void *arg;
{
  struct cb_poll_str *poll = arg;
  struct cbb_pcmcia_softc *psc = (void *)poll->ct->v;
  struct pccbb_softc *sc = psc->cpc_parent;
  int s;
  u_int32_t spsr;		/* socket present-state reg */

  timeout(cb_pcmcia_poll, arg, hz/10);
  switch (poll->level) {
  case IPL_NET:
    s = splnet();
    break;
  case IPL_BIO:
    s = splbio();
    break;
  case IPL_TTY:			/* fallthrough */
  default:
    s = spltty();
    break;
  }

  spsr = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT);

#if defined CB_PCMCIA_POLL_ONLY && defined LEVEL2
  if (!(spsr & 0x40)) {		/* CINT low */
#else
  if (1) {
#endif
    if ((*poll->func)(poll->arg) == 1) {
      ++poll->count;
	printf("intr: reported from poller, 0x%x\n", spsr);
#if defined LEVEL2
    } else {
      printf("intr: miss! 0x%x\n", spsr);
#endif
    }
  }
  splx(s);
}
#endif /* defined CB_PCMCIA_POLL */




/*
 * static int pccbb_detect_card(struct pccbb_softc *sc)
 *   return value:  0 if no card exists.
 *                  1 if 16-bit card exists.
 *                  2 if cardbus card exists.
 */
static int
pccbb_detect_card(sc)
     struct pccbb_softc *sc;
{
  bus_space_handle_t base_memh = sc->sc_base_memh;
  bus_space_tag_t base_memt = sc->sc_base_memt;
  u_int32_t sockstat = bus_space_read_4(base_memt,base_memh, CB_SOCKET_STAT);
  int retval = 0;

  if (0x00 == (sockstat & CB_SOCKET_STAT_CD)) { /* CD1 and CD2 asserted */
    /* card must be present */
    if (!(CB_SOCKET_STAT_NOTCARD & sockstat)) {	/* NOTACARD DEASSERTED */
      if (CB_SOCKET_STAT_CB & sockstat) {	/* CardBus mode */
	retval = 2;
      } else if (CB_SOCKET_STAT_16BIT & sockstat) { /* 16-bit mode */
	retval = 1;
      }
    }
  }
  return retval;
}




/*
 * STATIC int cb_reset(struct pccbb_softc *sc)
 *   This function resets CardBus card.
 */
STATIC int
cb_reset(sc)
     struct pccbb_softc *sc;
{
  /*
   * Reset Assert at least 20 ms
   * Some machines request longer duration.
   */
  int reset_duration = (sc->sc_chipset == CB_RX5C47X ? 400*1000 : 40*1000);
  u_int32_t bcr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_BCR_INTR);

  bcr |= (0x40 << 16);		/* Reset bit Assert (bit 6 at 0x3E) */
  pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BCR_INTR, bcr);
  delay(reset_duration);

  if (CBB_CARDEXIST & sc->sc_flags) { /* A card exists.  Reset it! */
    bcr &= ~(0x40 << 16);	/* Reset bit Deassert (bit 6 at 0x3E) */
    pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BCR_INTR, bcr);
    delay(reset_duration);
  }
				/* No card found on the slot. Keep Reset. */
  return 1;
}




/*
 * STATIC int cb_detect_voltage(struct pccbb_softc *sc)
 *  This function detect card Voltage.
 */
STATIC int
cb_detect_voltage(sc)
     struct pccbb_softc *sc;
{
  u_int32_t psr;		/* socket present-state reg */
  bus_space_tag_t iot = sc->sc_base_memt;
  bus_space_handle_t ioh = sc->sc_base_memh;
  int vol = PCCARD_VCC_UKN;	/* set 0 */

  psr = bus_space_read_4(iot, ioh, CB_SOCKET_STAT);

  if (0x400u & psr) {
    vol |= PCCARD_VCC_5V;
  }
  if (0x800u & psr) {
    vol |= PCCARD_VCC_3V;
  }

  return vol;
}






STATIC int
cbbprint(aux, pcic)
     void *aux;
     const char *pcic;
{
/*
  struct cbslot_attach_args *cba = aux;

  if (cba->cba_slot >= 0) {
    printf(" slot %d", cba->cba_slot);
  }
*/
  return UNCONF;
}




/*
 * STATIC int pccbb_cardenable(struct pccbb_softc *sc, int function)
 *   This function enables and disables the card
 */
STATIC int
pccbb_cardenable(sc, function)
     struct pccbb_softc *sc;
     int function;
{
  u_int32_t command = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG);

  DPRINTF(("pccbb_cardenable:"));
  switch (function) {
  case CARDBUS_IO_ENABLE:
    command |= PCI_COMMAND_IO_ENABLE;
    break;
  case CARDBUS_IO_DISABLE:
    command &= ~PCI_COMMAND_IO_ENABLE;
    break;
  case CARDBUS_MEM_ENABLE:
    command |= PCI_COMMAND_MEM_ENABLE;
    break;
  case CARDBUS_MEM_DISABLE:
    command &= ~PCI_COMMAND_MEM_ENABLE;
    break;
  case CARDBUS_BM_ENABLE:
    command |= PCI_COMMAND_MASTER_ENABLE;
    break;
  case CARDBUS_BM_DISABLE:
    command &= ~PCI_COMMAND_MASTER_ENABLE;
    break;
  default:
    return 0;
  }

  pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG, command);
  DPRINTF((" command reg 0x%x\n", command));
  return 1;
}






#if !rbus
/*
 * int pccbb_io_open(cardbus_chipset_tag_t, int, u_int32_t, u_int32_t)
 */
static int
pccbb_io_open(ct, win, start, end)
     cardbus_chipset_tag_t ct;
     int win;
     u_int32_t start, end;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;
  int basereg;
  int limitreg;

  if ((win < 0) || (win > 2)) {
#if defined DIAGNOSTIC
    printf("cardbus_io_open: window out of range %d\n", win);
#endif
    return 0;
  }

  basereg = win*8 + 0x2c;
  limitreg = win*8 + 0x30;

  DPRINTF(("pccbb_io_open: 0x%x[0x%x] - 0x%x[0x%x]\n",
	   start, basereg, end, limitreg));

  pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, start);
  pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, end);
  return 1;
}

/*
 * int pccbb_io_close(cardbus_chipset_tag_t, int)
 */
static int
pccbb_io_close(ct, win)
     cardbus_chipset_tag_t ct;
     int win;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;
  int basereg;
  int limitreg;

  if ((win < 0) || (win > 2)) {
#if defined DIAGNOSTIC
    printf("cardbus_io_close: window out of range %d\n", win);
#endif
    return 0;
  }

  basereg = win*8 + 0x2c;
  limitreg = win*8 + 0x30;

  pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, 0);
  pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, 0);
  return 1;
}

/*
 * int pccbb_mem_open(cardbus_chipset_tag_t, int, u_int32_t, u_int32_t)
 */
static int
pccbb_mem_open(ct, win, start, end)
     cardbus_chipset_tag_t ct;
     int win;
     u_int32_t start, end;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;
  int basereg;
  int limitreg;

  if ((win < 0) || (win > 2)) {
#if defined DIAGNOSTIC
    printf("cardbus_mem_open: window out of range %d\n", win);
#endif
    return 0;
  }

  basereg = win*8 + 0x1c;
  limitreg = win*8 + 0x20;

  pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, start);
  pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, end);
  return 1;
}


/*
 * int pccbb_mem_close(cardbus_chipset_tag_t, int)
 */
static int
pccbb_mem_close(ct, win)
     cardbus_chipset_tag_t ct;
     int win;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;
  int basereg;
  int limitreg;

  if ((win < 0) || (win > 2)) {
#if defined DIAGNOSTIC
    printf("cardbus_mem_close: window out of range %d\n", win);
#endif
    return 0;
  }

  basereg = win*8 + 0x1c;
  limitreg = win*8 + 0x20;

  pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, 0);
  pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, 0);
  return 1;
}
#endif



static void *
pccbb_intr_establish(ct, irq, level, func, arg)
     cardbus_chipset_tag_t ct;
     int irq, level;
     int (* func) __P((void *));
     void *arg;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;

  switch (sc->sc_chipset) {
  case CB_TI113X:
    {
      pcireg_t cbctrl = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CBCTRL);
      cbctrl |= PCI113X_CBCTRL_PCI_INTR; /* functional intr enabled */
      pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CBCTRL, cbctrl);
    }
    break;
  default:
    break;
  }

  return pci_intr_establish(sc->sc_pc, irq, level, func, arg);
}




static void
pccbb_intr_disestablish(ct, ih)
     cardbus_chipset_tag_t ct;
     void *ih;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;

  switch (sc->sc_chipset) {
  case CB_TI113X:
    {
      pcireg_t cbctrl = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CBCTRL);
      cbctrl &= ~PCI113X_CBCTRL_PCI_INTR; /* functional intr disabled */
      pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CBCTRL, cbctrl);
    }
    break;
  default:
    break;
  }

  pci_intr_disestablish(sc->sc_pc, ih);
}





#if defined SHOW_REGS
static void
cb_show_regs(pc, tag, memt, memh)
     pci_chipset_tag_t pc;
     pcitag_t tag;
     bus_space_tag_t memt;
     bus_space_handle_t memh;
{
  int i;
  printf("PCI config regs:");
  for (i = 0; i < 0x50; i += 4) {
    if (i % 16 == 0) {
      printf("\n 0x%02x:", i);
    }
    printf(" %08x", pci_conf_read(pc, tag, i));
  }
  for (i = 0x80; i < 0xb0; i += 4) {
    if (i % 16 == 0) {
      printf("\n 0x%02x:", i);
    }
    printf(" %08x", pci_conf_read(pc, tag, i));
  }

  if (memh == 0) {
    printf("\n");
    return;
  }

  printf("\nsocket regs:");
  for (i = 0; i <= 0x10; i += 0x04) {
    printf(" %08x", bus_space_read_4(memt, memh, i));
  }
  printf("\nExCA regs:");
  for (i = 0; i < 0x08; ++i) {
    printf(" %02x", bus_space_read_1(memt, memh, 0x800 + i));
  }
  printf("\n");
  return;
}
#endif



/*
 * static cardbustag_t pccbb_make_tag(cardbus_chipset_tag_t cc,
 *                                    int busno, int devno, int function)
 *   This is the function to make a tag to access config space of
 *  a CardBus Card.  It works same as pci_conf_read.
 */
static cardbustag_t
pccbb_make_tag(cc, busno, devno, function)
     cardbus_chipset_tag_t cc;
     int busno, devno, function;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)cc;

  return pci_make_tag(sc->sc_pc, busno, devno, function);
}


static void
pccbb_free_tag(cc, tag)
     cardbus_chipset_tag_t cc;
     cardbustag_t tag;
{
}


/*
 * static cardbusreg_t pccbb_conf_read(cardbus_chipset_tag_t cc,
 *                                     cardbustag_t tag, int offset)
 *   This is the function to read the config space of a CardBus Card.
 *  It works same as pci_conf_read.
 */
static cardbusreg_t
pccbb_conf_read(cc, tag, offset)
     cardbus_chipset_tag_t cc;
     cardbustag_t tag;
     int offset;		/* register offset */
{
  struct pccbb_softc *sc = (struct pccbb_softc *)cc;

  return pci_conf_read(sc->sc_pc, tag, offset);
}



/*
 * static void pccbb_conf_write(cardbus_chipset_tag_t cc, cardbustag_t tag,
 *                              int offs, cardbusreg_t val)
 *   This is the function to write the config space of a CardBus Card.
 *  It works same as pci_conf_write.
 */
static void
pccbb_conf_write(cc, tag, reg, val)
     cardbus_chipset_tag_t cc;
     cardbustag_t tag;
     int reg;			/* register offset */
     cardbusreg_t val;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)cc;

  pci_conf_write(sc->sc_pc, tag, reg, val);
}





#if 0
STATIC int
pccbb_new_pcmcia_io_alloc(pcmcia_chipset_handle_t pch,
                          bus_addr_t start, bus_size_t size,
                          bus_size_t align, bus_addr_t mask, /* address line width */
                          int speed, int flags,	/* bus width */
                          bus_space_handle_t *iohp)
#endif


/*
 * STATIC int pccbb_pcmcia_io_alloc(pcmcia_chipset_handle_t pch,
 *                                  bus_addr_t start, bus_size_t size,
 *                                  bus_size_t align,
 *                                  struct pcmcia_io_handle *pcihp
 *
 * This function only allocates I/O region for pccard. This function
 * never maps the allcated region to pccard I/O area.
 *
 * XXX: The interface of this function is not very good, I believe.
 */
STATIC int
pccbb_pcmcia_io_alloc(pch, start, size, align, pcihp)
     pcmcia_chipset_handle_t pch;
     bus_addr_t start;	/* start address */
     bus_size_t size;
     bus_size_t align;
     struct pcmcia_io_handle *pcihp;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  bus_addr_t ioaddr;
  int flags = 0;
  bus_space_tag_t iot;
  bus_space_handle_t ioh;
#if rbus
  rbus_tag_t rb;
#endif
  if (align == 0) {
    align = size;		/* XXX: funny??? */
  }


  /*
   * Allocate some arbitrary I/O space.
   */

  iot = ((struct pccbb_softc *)(ph->ph_parent))->sc_iot;

#if rbus
  rb = ((struct pccbb_softc *)(ph->ph_parent))->sc_rbus_iot;
  if (rbus_space_alloc(rb, start, size, 0x3ff /* XXX: I assume all card decode lower 10 bits by its hardware */,
		       align, 0, &ioaddr, &ioh)) {
    return 1;
  }
#else
  if (start) {
    ioaddr = start;
    if (bus_space_map(iot, start, size, 0, &ioh)) {
      return 1;
    }
    DPRINTF(("pccbb_pcmcia_io_alloc map port %lx+%lx\n",
	     (u_long) ioaddr, (u_long) size));
  } else {
    flags |= PCMCIA_IO_ALLOCATED;
    if (bus_space_alloc(iot, 0x700/* ph->sc->sc_iobase */,
			0x800/* ph->sc->sc_iobase + ph->sc->sc_iosize*/,
			size, align, 0, 0, &ioaddr, &ioh)) {
      /* No room be able to be get. */
      return 1;
    }
    DPRINTF(("pccbb_pcmmcia_io_alloc alloc port 0x%lx+0x%lx\n",
	     (u_long) ioaddr, (u_long) size));
  }
#endif

  pcihp->iot = iot;
  pcihp->ioh = ioh;
  pcihp->addr = ioaddr;
  pcihp->size = size;
  pcihp->flags = flags;

  return 0;
}





/*
 * STATIC int pccbb_pcmcia_io_free(pcmcia_chipset_handle_t pch,
 *                                 struct pcmcia_io_handle *pcihp)
 *
 * This function only frees I/O region for pccard.
 *
 * XXX: The interface of this function is not very good, I believe.
 */
void
pccbb_pcmcia_io_free(pch, pcihp)
     pcmcia_chipset_handle_t pch;
     struct pcmcia_io_handle *pcihp;
{
#if !rbus
  bus_space_tag_t iot = pcihp->iot;
#endif
  bus_space_handle_t ioh = pcihp->ioh;
  bus_size_t size = pcihp->size;

#if rbus
  struct pccbb_softc *sc = (struct pccbb_softc *)((struct pcic_handle *)pch)->ph_parent;
  rbus_tag_t rb = sc->sc_rbus_iot;

  rbus_space_free(rb, ioh, size, NULL);
#else
  if (pcihp->flags & PCMCIA_IO_ALLOCATED)
    bus_space_free(iot, ioh, size);
  else
    bus_space_unmap(iot, ioh, size);
#endif
}



/*
 * STATIC int pccbb_pcmcia_io_map(pcmcia_chipset_handle_t pch, int width,
 *                                bus_addr_t offset, bus_size_t size,
 *                                struct pcmcia_io_handle *pcihp,
 *                                int *windowp)
 *
 * This function maps the allocated I/O region to pccard. This function
 * never allocates any I/O region for pccard I/O area.  I don't
 * understand why the original authors of pcmciabus separated alloc and
 * map.  I believe the two must be unite.
 *
 * XXX: no wait timing control?
 */
int
pccbb_pcmcia_io_map(pch, width, offset, size, pcihp, windowp)
     pcmcia_chipset_handle_t pch;
     int width;
     bus_addr_t offset;
     bus_size_t size;
     struct pcmcia_io_handle *pcihp;
     int *windowp;
{
  struct pcic_handle *ph = (struct pcic_handle *) pch;
  bus_addr_t ioaddr = pcihp->addr + offset;
  int i, win;
#if defined CBB_DEBUG
  static char *width_names[] = { "dynamic", "io8", "io16" };
#endif

  /* Sanity check I/O handle. */

  if (((struct pccbb_softc *)ph->ph_parent)->sc_iot != pcihp->iot) {
    panic("pccbb_pcmcia_io_map iot is bogus");
  }

  /* XXX Sanity check offset/size. */

  win = -1;
  for (i = 0; i < PCIC_IO_WINS; i++) {
    if ((ph->ioalloc & (1 << i)) == 0) {
      win = i;
      ph->ioalloc |= (1 << i);
      break;
    }
  }

  if (win == -1) {
    return 1;
  }

  *windowp = win;

  /* XXX this is pretty gross */

  DPRINTF(("pccbb_pcmcia_io_map window %d %s port %lx+%lx\n",
	   win, width_names[width], (u_long) ioaddr, (u_long) size));

  /* XXX wtf is this doing here? */

#if 0
  printf(" port 0x%lx", (u_long) ioaddr);
  if (size > 1) {
    printf("-0x%lx", (u_long) ioaddr + (u_long) size - 1);
  }
#endif

  ph->io[win].addr = ioaddr;
  ph->io[win].size = size;
  ph->io[win].width = width;

  /* actual dirty register-value changing in the function below. */
  pccbb_pcmcia_do_io_map(ph, win);

  return 0;
}



/*
 * STATIC void pccbb_pcmcia_do_io_map(struct pcic_handle *h, int win)
 *
 * This function changes register-value to map I/O region for pccard.
 */
static void
pccbb_pcmcia_do_io_map(ph, win)
     struct pcic_handle *ph;
     int win;
{
  static u_int8_t pcic_iowidth[3] = {
    PCIC_IOCTL_IO0_IOCS16SRC_CARD,
    PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE | PCIC_IOCTL_IO0_DATASIZE_8BIT,
    PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE | PCIC_IOCTL_IO0_DATASIZE_16BIT,
  };

#define PCIC_SIA_START_LOW 0
#define PCIC_SIA_START_HIGH 1
#define PCIC_SIA_STOP_LOW 2
#define PCIC_SIA_STOP_HIGH 3

  int regbase_win = 0x8 + win*0x04;
  u_int8_t ioctl, enable;

  DPRINTF(("pccbb_pcmcia_do_io_map win %d addr 0x%lx size 0x%lx width %d\n",
	   win, (long) ph->io[win].addr, (long) ph->io[win].size,
	   ph->io[win].width * 8));

  Pcic_write(ph, regbase_win + PCIC_SIA_START_LOW,
		     ph->io[win].addr & 0xff);
  Pcic_write(ph, regbase_win + PCIC_SIA_START_HIGH,
		     (ph->io[win].addr >> 8) & 0xff);

  Pcic_write(ph, regbase_win + PCIC_SIA_STOP_LOW,
	     (ph->io[win].addr + ph->io[win].size - 1) & 0xff);
  Pcic_write(ph, regbase_win + PCIC_SIA_STOP_HIGH,
	     ((ph->io[win].addr + ph->io[win].size - 1) >> 8) & 0xff);

  ioctl = Pcic_read(ph, PCIC_IOCTL);
  enable = Pcic_read(ph, PCIC_ADDRWIN_ENABLE);
  switch (win) {
  case 0:
    ioctl &= ~(PCIC_IOCTL_IO0_WAITSTATE | PCIC_IOCTL_IO0_ZEROWAIT |
		PCIC_IOCTL_IO0_IOCS16SRC_MASK | PCIC_IOCTL_IO0_DATASIZE_MASK);
    ioctl |= pcic_iowidth[ph->io[win].width];
    enable |= PCIC_ADDRWIN_ENABLE_IO0;
    break;
  case 1:
    ioctl &= ~(PCIC_IOCTL_IO1_WAITSTATE | PCIC_IOCTL_IO1_ZEROWAIT |
		PCIC_IOCTL_IO1_IOCS16SRC_MASK | PCIC_IOCTL_IO1_DATASIZE_MASK);
    ioctl |= (pcic_iowidth[ph->io[win].width] << 4);
    enable |= PCIC_ADDRWIN_ENABLE_IO1;
    break;
  }
  Pcic_write(ph, PCIC_IOCTL, ioctl);
  Pcic_write(ph, PCIC_ADDRWIN_ENABLE, enable);
#if defined CBB_DEBUG
  {
    u_int8_t start_low = Pcic_read(ph, regbase_win + PCIC_SIA_START_LOW);
    u_int8_t start_high = Pcic_read(ph, regbase_win + PCIC_SIA_START_HIGH);
    u_int8_t stop_low = Pcic_read(ph, regbase_win + PCIC_SIA_STOP_LOW);
    u_int8_t stop_high = Pcic_read(ph, regbase_win + PCIC_SIA_STOP_HIGH);
    printf(" start %02x %02x, stop %02x %02x, ioctl %02x enable %02x\n",
	   start_low, start_high, stop_low, stop_high, ioctl, enable);
  }
#endif
}



/*
 * STATIC void pccbb_pcmcia_io_unmap(pcmcia_chipset_handle_t *h, int win)
 *
 * This function unmapss I/O region.  No return value.
 */
STATIC void
pccbb_pcmcia_io_unmap(pch, win)
     pcmcia_chipset_handle_t pch;
     int win;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  int reg;

  if (win >= PCIC_IO_WINS || win < 0) {
    panic("pccbb_pcmcia_io_unmap: window out of range");
  }

  reg = Pcic_read(ph, PCIC_ADDRWIN_ENABLE);
  switch (win) {
  case 0:
    reg &= ~PCIC_ADDRWIN_ENABLE_IO0;
    break;
  case 1:
    reg &= ~PCIC_ADDRWIN_ENABLE_IO1;
    break;
  }
  Pcic_write(ph, PCIC_ADDRWIN_ENABLE, reg);

  ph->ioalloc &= ~(1 << win);
}





/*
 * static void pccbb_pcmcia_wait_ready(struct pcic_handle *ph)
 *
 * This function enables the card.  All information is stored in
 * the first argument, pcmcia_chipset_handle_t.
 */
static void
pccbb_pcmcia_wait_ready(ph)
     struct pcic_handle *ph;
{
  int i;

  DPRINTF(("pccbb_pcmcia_wait_ready: status 0x%02x\n",
	   Pcic_read(ph, PCIC_IF_STATUS)));

  for (i = 0; i < 10000; i++) {
    if (Pcic_read(ph, PCIC_IF_STATUS) & PCIC_IF_STATUS_READY) {
      return;
    }
    delay(500);
#ifdef CBB_DEBUG
    if ((i > 5000) && (i%100 == 99))
      printf(".");
#endif
  }

#ifdef DIAGNOSTIC
  printf("pcic_wait_ready: ready never happened, status = %02x\n",
	 Pcic_read(ph, PCIC_IF_STATUS));
#endif
}



/*
 * STATIC void pccbb_pcmcia_socket_enable(pcmcia_chipset_handle_t pch)
 *
 * This function enables the card.  All information is stored in
 * the first argument, pcmcia_chipset_handle_t.
 */
STATIC void
pccbb_pcmcia_socket_enable(pch)
     pcmcia_chipset_handle_t pch;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;
  int cardtype, win;
  u_int8_t power, intr;
  pcireg_t spsr;
  int voltage;
#define PCIC_INTR_PCI PCIC_INTR_ENABLE

  /* this bit is mostly stolen from pcic_attach_card */

  DPRINTF(("pccbb_pcmcia_socket_enable: "));

  /* get card Vcc info */

  spsr = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT);
  if (spsr & CB_SOCKET_STAT_5VCARD) {
    DPRINTF(("5V card\n"));
    voltage = CARDBUS_VCC_5V | CARDBUS_VPP_VCC;
  } else if (spsr & CB_SOCKET_STAT_3VCARD) {
    DPRINTF(("3V card\n"));
    voltage = CARDBUS_VCC_3V | CARDBUS_VPP_VCC;
  } else {
    printf("?V card, 0x%x\n", spsr);	/* XXX */
    return;
  }

  /* assert reset bit */

  intr = Pcic_read(ph, PCIC_INTR);
  intr &= ~PCIC_INTR_RESET;
  intr |= PCIC_INTR_PCI;	/* XXX */
  Pcic_write(ph, PCIC_INTR, intr);

  /* disable socket i/o: negate output enable bit */

  power = Pcic_read(ph, PCIC_PWRCTL);
  power &= ~PCIC_PWRCTL_OE;
  Pcic_write(ph, PCIC_PWRCTL, power);

  /* power down the socket to reset it, clear the card reset pin */

  pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V);

  /*
   * wait 200ms until power fails (Tpf).  Then, wait 100ms since
   * we are changing Vcc (Toff).
   */
  /* delay(300*1000); too much */

  /* power up the socket */
  pccbb_power(sc, voltage);

  /*
   * wait 100ms until power raise (Tpr) and 20ms to become
   * stable (Tsu(Vcc)).
   *
   * some machines require some more time to be settled
   * (another 200ms is added here).
   */
  /* delay((100 + 20 + 200)*1000); too much */

  power = Pcic_read(ph, PCIC_PWRCTL);
  Pcic_write(ph, PCIC_PWRCTL, power | PCIC_PWRCTL_OE);

  /*
   * hold RESET at least 10us.
   */
  delay(10);
  delay(2*1000);		/* XXX: TI1130 requires it. */
  delay(20*1000);		/* XXX: TI1130 requires it. */

  /* clear the reset flag */

  intr = Pcic_read(ph, PCIC_INTR);
  Pcic_write(ph, PCIC_INTR, intr | PCIC_INTR_RESET);

  /* wait 20ms as per pc card standard (r2.01) section 4.3.6 */

  delay(20000);

  /* wait for the chip to finish initializing */

  pccbb_pcmcia_wait_ready(ph);

  /* zero out the address windows */

  Pcic_write(ph, PCIC_ADDRWIN_ENABLE, 0);

  /* set the card type */

  cardtype = pcmcia_card_gettype(ph->pcmcia);

  intr = Pcic_read(ph, PCIC_INTR);
  intr &= ~PCIC_INTR_CARDTYPE_MASK;
  intr |= ((cardtype == PCMCIA_IFTYPE_IO) ?
	   PCIC_INTR_CARDTYPE_IO :
	   PCIC_INTR_CARDTYPE_MEM);
  Pcic_write(ph, PCIC_INTR, intr);

  DPRINTF(("%s: pccbb_pcmcia_socket_enable %02x cardtype %s %02x\n",
	   ph->ph_parent->dv_xname, ph->sock,
	   ((cardtype == PCMCIA_IFTYPE_IO) ? "io" : "mem"), intr));

  /* reinstall all the memory and io mappings */

  for (win = 0; win < PCIC_MEM_WINS; ++win) {
    if (ph->memalloc & (1 << win)) {
      pccbb_pcmcia_do_mem_map(ph, win);
    }
  }

  for (win = 0; win < PCIC_IO_WINS; ++win) {
    if (ph->ioalloc & (1 << win)) {
      pccbb_pcmcia_do_io_map(ph, win);
    }
  }
}



/*
 * STATIC void pccbb_pcmcia_socket_disable(pcmcia_chipset_handle_t *ph)
 *
 * This function disables the card.  All information is stored in
 * the first argument, pcmcia_chipset_handle_t.
 */
STATIC void
pccbb_pcmcia_socket_disable(pch)
     pcmcia_chipset_handle_t pch;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;
  u_int8_t power, intr;

  DPRINTF(("pccbb_pcmcia_socket_disable\n"));

  /* reset signal asserting... */

  intr = Pcic_read(ph, PCIC_INTR);
  intr &= ~PCIC_INTR_RESET;
  Pcic_write(ph, PCIC_INTR, intr);
  delay(2*1000);

  /* power down the socket */
  power = Pcic_read(ph, PCIC_PWRCTL);
  power &= ~PCIC_PWRCTL_OE;
  Pcic_write(ph, PCIC_PWRCTL, power);
  pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V);
  /*
   * wait 300ms until power fails (Tpf).
   */
  delay(300 * 1000);
}



/*
 * STATIC int pccbb_pcmcia_card_detect(pcmcia_chipset_handle_t *ph)
 *
 * This function detects whether a card is in the slot or not.
 * If a card is inserted, return 1.  Otherwise, return 0.
 */
STATIC int
pccbb_pcmcia_card_detect(pch)
     pcmcia_chipset_handle_t pch;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;

  DPRINTF(("pccbb_pcmcia_card_detect\n"));
  return pccbb_detect_card(sc) == 1 ? 1 : 0;
}



#if 0
STATIC int
pccbb_new_pcmcia_mem_alloc(pcmcia_chipset_handle_t pch,
			   bus_addr_t start, bus_size_t size,
			   bus_size_t align,
			   int speed, int flags,	/* bus width */
			   bus_space_tag_t *memtp
			   bus_space_handle_t *memhp)
#endif


/*
 * STATIC int pccbb_pcmcia_mem_alloc(pcmcia_chipset_handle_t pch,
 *                                   bus_size_t size,
 *                                   struct pcmcia_mem_handle *pcmhp)
 *
 * This function only allocates memory region for pccard. This
 * function never maps the allcated region to pccard memory area.
 *
 * XXX: Why the argument of start address is not in?
 */
STATIC int
pccbb_pcmcia_mem_alloc(pch, size, pcmhp)
     pcmcia_chipset_handle_t pch;
     bus_size_t size;
     struct pcmcia_mem_handle *pcmhp;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  bus_space_handle_t memh;
  bus_addr_t addr;
  bus_size_t sizepg;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;
#if rbus
  rbus_tag_t rb;
#endif

  /* out of sc->memh, allocate as many pages as necessary */

  /* convert size to PCIC pages */
  /*
     This is not enough; when the requested region is on the
     page boundaries, this may calculate wrong result.
   */
  sizepg = (size + (PCIC_MEM_PAGESIZE - 1)) / PCIC_MEM_PAGESIZE;
#if 0
  if (sizepg > PCIC_MAX_MEM_PAGES) {
    return 1;
  }
#endif

  if (!(sc->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32)) {
    return 1;
  }

  addr = 0;		/* XXX gcc -Wuninitialized */

#if rbus
  rb = sc->sc_rbus_memt;
  if (rbus_space_alloc(rb, 0, sizepg*PCIC_MEM_PAGESIZE,
		       sizepg*PCIC_MEM_PAGESIZE - 1, PCIC_MEM_PAGESIZE,
		       0, &addr, &memh)) {
    return 1;
  }

#else
  if (bus_space_alloc(sc->sc_memt, sc->sc_mem_start, sc->sc_mem_end,
		      sizepg*PCIC_MEM_PAGESIZE, PCIC_MEM_PAGESIZE,
		      0 /* boundary */, 0 /* flags */,
		      &addr, &memh)) {
    return 1;
  }
#endif

  DPRINTF(("pccbb_pcmcia_alloc_mem: addr 0x%lx size 0x%lx, realsize 0x%lx\n",
	   addr, size, sizepg*PCIC_MEM_PAGESIZE));

  pcmhp->memt = sc->sc_memt;
  pcmhp->memh = memh;
  pcmhp->addr = addr;
  pcmhp->size = size;
  pcmhp->realsize = sizepg * PCIC_MEM_PAGESIZE;
  /* What is mhandle?  I feel it is very dirty and it must go trush. */
  pcmhp->mhandle = 0;
  /* No offset???  Funny. */

  return 0;
}




/*
 * STATIC void pccbb_pcmcia_mem_free(pcmcia_chipset_handle_t pch,
 *                                   struct pcmcia_mem_handle *pcmhp)
 *
 * This function release the memory space allocated by the fuction
 * pccbb_pcmcia_mem_alloc().
 */
STATIC void
pccbb_pcmcia_mem_free(pch, pcmhp)
     pcmcia_chipset_handle_t pch;
     struct pcmcia_mem_handle *pcmhp;
{
#if rbus
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;

  rbus_space_free(sc->sc_rbus_memt, pcmhp->memh, pcmhp->realsize, NULL);
#else
  bus_space_free(pcmhp->memt, pcmhp->memh, pcmhp->realsize);
#endif
}




/*
 * STATIC void pccbb_pcmcia_do_mem_map(struct pcic_handle *ph, int win)
 *
 * This function release the memory space allocated by the fuction
 * pccbb_pcmcia_mem_alloc().
 */
STATIC void
pccbb_pcmcia_do_mem_map(ph, win)
     struct pcic_handle *ph;
     int win;
{
  int regbase_win;
  bus_addr_t phys_addr;
  bus_addr_t phys_end;

#define PCIC_SMM_START_LOW 0
#define PCIC_SMM_START_HIGH 1
#define PCIC_SMM_STOP_LOW 2
#define PCIC_SMM_STOP_HIGH 3
#define PCIC_CMA_LOW 4
#define PCIC_CMA_HIGH 5

  u_int8_t start_low, start_high = 0;
  u_int8_t stop_low, stop_high;
  u_int8_t off_low, off_high;
  u_int8_t mem_window;
  int reg;

  regbase_win = 0x10 + win*0x08;

  phys_addr = ph->mem[win].addr;
  phys_end = phys_addr + ph->mem[win].size;

  DPRINTF(("pccbb_pcmcia_do_mem_map: start 0x%lx end 0x%lx off 0x%lx\n",
	   phys_addr, phys_end, ph->mem[win].offset));

#define PCIC_MEMREG_LSB_SHIFT PCIC_SYSMEM_ADDRX_SHIFT
#define PCIC_MEMREG_MSB_SHIFT (PCIC_SYSMEM_ADDRX_SHIFT + 8)
#define PCIC_MEMREG_WIN_SHIFT (PCIC_SYSMEM_ADDRX_SHIFT + 12)

  start_low = (phys_addr >> PCIC_MEMREG_LSB_SHIFT) & 0xff; /* bit 19:12 */
  start_high = ((phys_addr >> PCIC_MEMREG_MSB_SHIFT) & 0x0f) /* bit 23:20 */
    | PCIC_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT; /* bit 7 on */
 /* bit 31:24, for 32-bit address */
  mem_window = (phys_addr >> PCIC_MEMREG_WIN_SHIFT) & 0xff; /* bit 31:24 */

  Pcic_write(ph, regbase_win + PCIC_SMM_START_LOW, start_low);
  Pcic_write(ph, regbase_win + PCIC_SMM_START_HIGH, start_high);

  if (((struct pccbb_softc *)ph->ph_parent)->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) {
    Pcic_write(ph, 0x40 + win, mem_window);
  }


#if 0
  /* XXX do I want 16 bit all the time? */
  PCIC_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT;
#endif


  stop_low = (phys_end >> PCIC_MEMREG_LSB_SHIFT) & 0xff;
  stop_high = ((phys_end >> PCIC_MEMREG_MSB_SHIFT) & 0x0f)
    | PCIC_SYSMEM_ADDRX_STOP_MSB_WAIT2;	/* wait 2 cycles */
  /* XXX Geee, WAIT2!! Crazy!!  I must rewrite this routine. */

  Pcic_write(ph, regbase_win + PCIC_SMM_STOP_LOW, stop_low);
  Pcic_write(ph, regbase_win + PCIC_SMM_STOP_HIGH, stop_high);

  off_low = (ph->mem[win].offset >> PCIC_CARDMEM_ADDRX_SHIFT) & 0xff;
  off_high = ((ph->mem[win].offset >> (PCIC_CARDMEM_ADDRX_SHIFT + 8))
	      & PCIC_CARDMEM_ADDRX_MSB_ADDR_MASK)
    | ((ph->mem[win].kind == PCMCIA_MEM_ATTR) ?
       PCIC_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR : 0);

  Pcic_write(ph, regbase_win + PCIC_CMA_LOW, off_low);
  Pcic_write(ph, regbase_win + PCIC_CMA_HIGH, off_high);

  reg = Pcic_read(ph, PCIC_ADDRWIN_ENABLE);
  reg |= ((1 << win) | PCIC_ADDRWIN_ENABLE_MEMCS16);
  Pcic_write(ph, PCIC_ADDRWIN_ENABLE, reg);

#if defined CBB_DEBUG
  {
    int r1, r2, r3, r4, r5, r6, r7 = 0;

    r1 = Pcic_read(ph, regbase_win + PCIC_SMM_START_LOW);
    r2 = Pcic_read(ph, regbase_win + PCIC_SMM_START_HIGH);
    r3 = Pcic_read(ph, regbase_win + PCIC_SMM_STOP_LOW);
    r4 = Pcic_read(ph, regbase_win + PCIC_SMM_STOP_HIGH);
    r5 = Pcic_read(ph, regbase_win + PCIC_CMA_LOW);
    r6 = Pcic_read(ph, regbase_win + PCIC_CMA_HIGH);
    if (((struct pccbb_softc *)(ph->ph_parent))->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) {
      r7 = Pcic_read(ph, 0x40 + win);
    }

    DPRINTF(("pccbb_pcmcia_do_mem_map window %d: %02x%02x %02x%02x "
	     "%02x%02x", win, r1, r2, r3, r4, r5, r6));
    if (((struct pccbb_softc *)(ph->ph_parent))->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) {
      DPRINTF((" %02x",r7));
    }
    DPRINTF(("\n"));
  }
#endif
}




/*
 * STATIC int pccbb_pcmcia_mem_map(pcmcia_chipset_handle_t pch, int kind,
 *                                 bus_addr_t card_addr, bus_size_t size,
 *                                 struct pcmcia_mem_handle *pcmhp,
 *                                 bus_addr_t *offsetp, int *windowp)
 *
 * This function maps memory space allocated by the fuction
 * pccbb_pcmcia_mem_alloc().
 */
STATIC int
pccbb_pcmcia_mem_map(pch, kind, card_addr, size, pcmhp, offsetp, windowp)
     pcmcia_chipset_handle_t pch;
     int kind;
     bus_addr_t card_addr;
     bus_size_t size;
     struct pcmcia_mem_handle *pcmhp;
     bus_addr_t *offsetp;
     int *windowp;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  bus_addr_t busaddr;
  long card_offset;
  int win;

  for (win = 0; win < PCIC_MEM_WINS; ++win) {
    if ((ph->memalloc & (1 << win)) == 0) {
      ph->memalloc |= (1 << win);
      break;
    }
  }

  if (win == PCIC_MEM_WINS) {
    return 1;
  }

  *windowp = win;

  /* XXX this is pretty gross */

  if (((struct pccbb_softc *)ph->ph_parent)->sc_memt != pcmhp->memt) {
    panic("pccbb_pcmcia_mem_map memt is bogus");
  }

  busaddr = pcmhp->addr;

  /*
   * compute the address offset to the pcmcia address space for the
   * pcic.  this is intentionally signed.  The masks and shifts below
   * will cause TRT to happen in the pcic registers.  Deal with making
   * sure the address is aligned, and return the alignment offset.
   */

  *offsetp = card_addr % PCIC_MEM_PAGESIZE;
  card_addr -= *offsetp;

  DPRINTF(("pccbb_pcmcia_mem_map window %d bus %lx+%lx+%lx at card addr "
	   "%lx\n", win, (u_long)busaddr, (u_long)*offsetp, (u_long)size,
	   (u_long)card_addr));

  /*
   * include the offset in the size, and decrement size by one, since
   * the hw wants start/stop
   */
  size += *offsetp - 1;

  card_offset = (((long) card_addr) - ((long) busaddr));

  ph->mem[win].addr = busaddr;
  ph->mem[win].size = size;
  ph->mem[win].offset = card_offset;
  ph->mem[win].kind = kind;

  pccbb_pcmcia_do_mem_map(ph, win);

  return 0;
}



/*
 * STATIC int pccbb_pcmcia_mem_unmap(pcmcia_chipset_handle_t pch,
 *                                   int window)
 *
 * This function unmaps memory space which mapped by the fuction
 * pccbb_pcmcia_mem_map().
 */
STATIC void
pccbb_pcmcia_mem_unmap(pch, window)
     pcmcia_chipset_handle_t pch;
     int window;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  int reg;

  if (window >= PCIC_MEM_WINS) {
    panic("pccbb_pcmcia_mem_unmap: window out of range");
  }

  reg = Pcic_read(ph, PCIC_ADDRWIN_ENABLE);
  reg &= ~(1 << window);
  Pcic_write(ph, PCIC_ADDRWIN_ENABLE, reg);

  ph->memalloc &= ~(1 << window);
}



#if defined PCCBB_PCMCIA_POLL
struct pccbb_poll_str {
  void *arg;
  int (* func) __P((void *));
  int level;
  struct pcic_handle *ph;
  int count;
  int num;
};

static struct pccbb_poll_str pccbb_poll[10];
static int pccbb_poll_n = 0;

static void pccbb_pcmcia_poll __P((void *arg));

static void
pccbb_pcmcia_poll(arg)
     void *arg;
{
  struct pccbb_poll_str *poll = arg;
  struct pcic_handle *ph = poll->ph;
  struct pccbb_softc *sc = ph->sc;
  int s;
  u_int32_t spsr;		/* socket present-state reg */

  timeout(pccbb_pcmcia_poll, arg, hz*2);
  switch (poll->level) {
  case IPL_NET:
    s = splnet();
    break;
  case IPL_BIO:
    s = splbio();
    break;
  case IPL_TTY:			/* fallthrough */
  default:
    s = spltty();
    break;
  }

  spsr = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT);

#if defined PCCBB_PCMCIA_POLL_ONLY && defined LEVEL2
  if (!(spsr & 0x40))		/* CINT low */
#else
  if (1)
#endif
  {
    if ((*poll->func)(poll->arg) > 0) {
      ++poll->count;
//	printf("intr: reported from poller, 0x%x\n", spsr);
#if defined LEVEL2
    } else {
      printf("intr: miss! 0x%x\n", spsr);
#endif
    }
  }
  splx(s);
}
#endif /* defined CB_PCMCIA_POLL */



/*
 * STATIC void *pccbb_pcmcia_intr_establish(pcmcia_chipset_handle_t pch,
 *                                          struct pcmcia_function *pf,
 *                                          int ipl,
 *                                          int (*func)(void *),
 *                                          void *arg);
 *
 * This function enables PC-Card interrupt.  PCCBB uses PCI interrupt line.
 */
STATIC void *
pccbb_pcmcia_intr_establish(pch, pf, ipl, func, arg)
     pcmcia_chipset_handle_t pch;
     struct pcmcia_function *pf;
     int ipl;
     int (*func) __P((void *));
     void *arg;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;
  pci_intr_handle_t handle;
  void *ih;

  if (!(pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)) {
    /* what should I do? */
    if ((pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)) {
      DPRINTF(("%s does not provide edge nor pulse interrupt\n",
	       sc->sc_dev.dv_xname));
      return NULL;
    }
    /*
     * XXX Noooooo!  The interrupt flag must set properly!!
     * dumb pcmcia driver!!
     */
  }

  if (pci_intr_map(sc->sc_pc, sc->sc_intrtag, sc->sc_intrpin,
		   sc->sc_intrline, &handle)) {
    printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    return NULL;
  }
  DPRINTF(("pccbb_pcmcia_intr_establish: line %d, handle %d\n",
	   sc->sc_intrline, handle));

  if (NULL != (ih = pci_intr_establish(sc->sc_pc, handle, ipl, func, arg)))
    {
      u_int32_t cbctrl;

      if ((CB_TI113X == sc->sc_chipset)) {
	cbctrl = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CBCTRL);
	cbctrl |= PCI113X_CBCTRL_PCI_INTR; /* PCI functional intr req */
	pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CBCTRL, cbctrl);
      }
    }
#if defined PCCBB_PCMCIA_POLL
    if (pccbb_poll_n < 10) {
      pccbb_poll[pccbb_poll_n].arg = arg;
      pccbb_poll[pccbb_poll_n].func = func;
      pccbb_poll[pccbb_poll_n].level = ipl;
      pccbb_poll[pccbb_poll_n].count = 0;
      pccbb_poll[pccbb_poll_n].num = pccbb_poll_n;
      pccbb_poll[pccbb_poll_n].ph = ph;
      timeout(pccbb_pcmcia_poll, &pccbb_poll[pccbb_poll_n++], hz*2);
      printf("polling set\n");
    }
#endif
#if defined SHOW_REGS
  cb_show_regs(sc->sc_pc, sc->sc_tag, sc->sc_base_memt, sc->sc_base_memh);
#endif

  return ih;
}




/*
 * STATIC void pccbb_pcmcia_intr_disestablish(pcmcia_chipset_handle_t pch,
 *                                            void *ih)
 *
 * This function disables PC-Card interrupt.
 */
STATIC void
pccbb_pcmcia_intr_disestablish(pch, ih)
     pcmcia_chipset_handle_t pch;
     void *ih;
{
  struct pcic_handle *ph = (struct pcic_handle *)pch;
  struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;

  pci_intr_disestablish(sc->sc_pc, ih);
}




#if rbus
/*
 * static int
 * pccbb_rbus_cb_space_alloc(cardbus_chipset_tag_t ct, rbus_tag_t rb,
 *			    bus_addr_t addr, bus_size_t size,
 *			    bus_addr_t mask, bus_size_t align,
 *			    int flags, bus_addr_t *addrp;
 *			    bus_space_handle_t *bshp)
 *
 *   This function allocates a portion of memory or io space for
 *   clients.  This function is called from CardBus card drivers.
 */
static int
pccbb_rbus_cb_space_alloc(ct, rb, addr, size, mask, align, flags, addrp, bshp)
     cardbus_chipset_tag_t ct;
     rbus_tag_t rb;
     bus_addr_t addr;
     bus_size_t size;
     bus_addr_t mask;
     bus_size_t align;
     int flags;
     bus_addr_t *addrp;
     bus_space_handle_t *bshp;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;

  DPRINTF(("pccbb_rbus_cb_space_alloc: adr %lx, size %lx, mask %lx, align %lx\n", addr, size, mask, align));

  if (align == 0) {
    align = size;
  }

  if (rb->rb_bt == sc->sc_memt) {
    if (align < 16) {
      return 1;
    }
  } else if (rb->rb_bt == sc->sc_iot) {
    if (align < 4) {
      return 1;
    }
  } else {
    DPRINTF(("pccbb_rbus_cb_space_alloc: Bus space tag %x is NOT used.\n",
	     rb->rb_bt));
    return 1;
    /* XXX: panic here? */
  }

  /* XXX: hack for avoiding ISA image */
  if (mask < 0x3ff) {
    mask = 0x3ff;
    addr = 0x300;
  }

  if (rbus_space_alloc(rb, addr, size, mask, align, flags, addrp, bshp)) {
    printf("%s: <rbus> no bus space\n", sc->sc_dev.dv_xname);
    return 1;
  }

  pccbb_open_win(sc, rb->rb_bt, *addrp, size, *bshp, 0);

  return 0;
}





/*
 * static int
 * pccbb_rbus_cb_space_free(cardbus_chipset_tag_t *ct, rbus_tag_t rb,
 *			   bus_space_handle_t *bshp, bus_size_t size);
 *
 *   This function is called from CardBus card drivers.
 */
static int
pccbb_rbus_cb_space_free(ct, rb, bsh, size)
     cardbus_chipset_tag_t ct;
     rbus_tag_t rb;
     bus_space_handle_t bsh;
     bus_size_t size;
{
  struct pccbb_softc *sc = (struct pccbb_softc *)ct;
  bus_space_tag_t bt = rb->rb_bt;

  pccbb_close_win(sc, bt, bsh, size);

  if (bt == sc->sc_memt) {
  } else if (bt == sc->sc_iot) {
  } else {
    return 1;
    /* XXX: panic here? */
  }

  return rbus_space_free(rb, bsh, size, NULL);
}
#endif /* rbus */


#if rbus

static int
pccbb_open_win(sc, bst, addr, size, bsh, flags)
     struct pccbb_softc *sc;
     bus_space_tag_t bst;
     bus_addr_t addr;
     bus_size_t size;
     bus_space_handle_t bsh;
     int flags;
{
  struct pccbb_win_chain **top;
  bus_addr_t align;

  top = &sc->sc_iowindow;
  align = 0x04;
  if (sc->sc_memt == bst) {
    top = &sc->sc_memwindow;
    align = 0x1000;
    DPRINTF(("using memory window, %x %x %x\n\n",
	     sc->sc_iot, sc->sc_memt, bst));
  }

  if (pccbb_winlist_insert(top, addr, size, bsh, flags)) {
    printf("winlist insert fails:\n");
  }
  pccbb_winset(align, sc, bst);

  return 0;
}



static int
pccbb_close_win(sc, bst, bsh, size)
     struct pccbb_softc *sc;
     bus_space_tag_t bst;
     bus_space_handle_t bsh;
     bus_size_t size;
{
  struct pccbb_win_chain **top;
  bus_addr_t align;

  top = &sc->sc_iowindow;
  align = 0x04;
  if (sc->sc_memt == bst) {
    top = &sc->sc_memwindow;
    align = 0x1000;
  }

  if (pccbb_winlist_delete(top, bsh, size)) {
    printf("winlist delete fails:\n");
  }
  pccbb_winset(align, sc, bst);

  return 0;
}


static int
pccbb_winlist_insert(top, start, size, bsh, flags)
     struct pccbb_win_chain **top;
     bus_addr_t start;
     bus_size_t size;
     bus_space_handle_t bsh;
     int flags;
{
  struct pccbb_win_chain *chainp = *top;
  struct pccbb_win_chain *before = *top;
  struct pccbb_win_chain *elem;

  if (*top == NULL) {
    if (NULL == (elem = (struct pccbb_win_chain *)malloc(sizeof(struct pccbb_win_chain), M_DEVBUF, M_NOWAIT))) {
      return 1;			/* fail */
    }

    elem->wc_start = start;
    elem->wc_end = start + size - 1;
    elem->wc_handle = bsh;
    elem->wc_flags = flags;

    *top = elem;
    elem->wc_next = NULL;
    return 0;
  }

  for(; chainp && chainp->wc_start <= start; chainp = chainp->wc_next) {
    before = chainp;
  }

  if (chainp != NULL) {
    if (chainp->wc_start < start + size) {
      printf("fatal! 0x%lx 0x%lx\n", chainp->wc_start, start+size);
      return 1;
    }
  }
  if ((before != *top) && (before->wc_end >= start)) {
    printf("fatal!! 0x%lx 0x%lx\n", before->wc_end, start);
    return 1;
  }

  if (NULL == (elem = (struct pccbb_win_chain *)malloc(sizeof(struct pccbb_win_chain), M_DEVBUF, M_NOWAIT))) {
    return 1;			/* fail */
  }

  elem->wc_start = start;
  elem->wc_end = start + size - 1;
  elem->wc_handle = bsh;
  elem->wc_flags = flags;

  elem->wc_next = chainp;
  if (chainp == *top) {
    *top = elem;
  } else {
    before->wc_next = elem;
  }
  return 0;
}




static int
pccbb_winlist_delete(top, bsh, size)
     struct pccbb_win_chain **top;
     bus_space_handle_t bsh;
     bus_size_t size;
{
  struct pccbb_win_chain *chainp = *top;
  struct pccbb_win_chain **before = top;

  for (; chainp && chainp->wc_handle != bsh; chainp = chainp->wc_next) {
    before = &chainp->wc_next;
  }

  if (chainp == NULL) {
    return 1;			/* fail: no candidate to remove */
  }

  if (chainp->wc_end - chainp->wc_start != size - 1) {
    printf("fatal!!! 0x%lx\n", chainp->wc_start);
    return 1;			/* fail: no candidate to remove */
  }

  *before = chainp->wc_next;
  free(chainp, M_DEVBUF);

  return 0;
}



static void
pccbb_winset(align, sc, bst)
     bus_addr_t align;
     struct pccbb_softc *sc;
     bus_space_tag_t bst;
{
  pci_chipset_tag_t pc;
  pcitag_t tag;
  bus_addr_t mask = ~(align - 1);
  struct {
    cardbusreg_t win_start;
    cardbusreg_t win_limit;
    int win_flags;
  } win[2];
  struct pccbb_win_chain *chainp;
  int offs;

  win[0].win_start = 0xffffffff;
  win[0].win_limit = 0;
  win[1].win_start = 0xffffffff;
  win[1].win_limit = 0;

  chainp = sc->sc_iowindow;
  offs = 0x2c;
  if (sc->sc_memt == bst) {
    chainp = sc->sc_memwindow;
    offs = 0x1c;
  }

  if (chainp) {
    win[0].win_start = chainp->wc_start & mask;
    win[0].win_limit = chainp->wc_end & mask;
    win[0].win_flags = chainp->wc_flags;
    chainp = chainp->wc_next;
  }

  for(; chainp; chainp = chainp->wc_next) {
    if (win[1].win_start == 0xffffffff) {
      /* window 1 is not used */
      if ((win[0].win_flags == chainp->wc_flags) &&
	  (win[0].win_limit + align >= (chainp->wc_start & mask))) {
	/* concatinate */
	win[0].win_limit = chainp->wc_end & mask;
      } else {
	/* make new window */
	win[1].win_start = chainp->wc_start & mask;
	win[1].win_limit = chainp->wc_end & mask;
	win[1].win_flags = chainp->wc_flags;
      }
      continue;
    }

    /* Both windows are engagad. */
    if (win[0].win_flags == win[1].win_flags) {
      /* same flags */
      if (win[0].win_flags == chainp->wc_flags) {
	if (win[1].win_start - (win[0].win_limit + align)
	    < (chainp->wc_start & mask) - ((chainp->wc_end & mask) + align)) {
	    /* merge window 0 and 1, and set win1 to chainp */
	    win[0].win_limit = win[1].win_limit;
	    win[1].win_start = chainp->wc_start & mask;
	    win[1].win_limit = chainp->wc_end & mask;
	} else {
	    win[1].win_limit = chainp->wc_end & mask;
	}
      } else {
	/* different flags */

	/* concatinate win0 and win1 */
	win[0].win_limit = win[1].win_limit;
	/* allocate win[1] to new space */
	win[1].win_start = chainp->wc_start & mask;
	win[1].win_limit = chainp->wc_end & mask;
	win[1].win_flags = chainp->wc_flags;
      }
    } else {
      /* the flags of win[0] and win[1] is different */
      if (win[0].win_flags == chainp->wc_flags) {
	  win[0].win_limit = chainp->wc_end & mask;
	  /* XXX this creates overlapping windows, so what should the
             poor bridge do if one is cachable, and the other is not?  */
	  printf("%s: overlapping windows\n", sc->sc_dev.dv_xname);
      } else {
	win[1].win_limit = chainp->wc_end & mask;
      }
    }
  }

  pc = sc->sc_pc;
  tag = sc->sc_tag;
  pci_conf_write(pc, tag, offs, win[0].win_start);
  pci_conf_write(pc, tag, offs+4, win[0].win_limit);
  pci_conf_write(pc, tag, offs+8, win[1].win_start);
  pci_conf_write(pc, tag, offs+12, win[1].win_limit);
  DPRINTF(("--pccbb_winset: win0 [%x, %lx), win1 [%x, %lx)\n",
	   pci_conf_read(pc, tag, offs),
	   pci_conf_read(pc, tag, offs+4) + align,
	   pci_conf_read(pc, tag, offs+8),
	   pci_conf_read(pc, tag, offs+12) + align));

  if (bst == sc->sc_memt) {
    if (win[0].win_flags & PCCBB_MEM_CACHABLE) {
      pcireg_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
      bcr |= CB_BCR_PREFETCH_MEMWIN0;
      pci_conf_write(pc,tag, PCI_BCR_INTR, bcr);
    }
    if (win[1].win_flags & PCCBB_MEM_CACHABLE) {
      pcireg_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
      bcr |= CB_BCR_PREFETCH_MEMWIN1;
      pci_conf_write(pc,tag, PCI_BCR_INTR, bcr);
    }
  }
}

#endif /* rbus */