text: /*
   * Copyright (c) 1997, 1998, 1999
   *	Bill Paul <wpaul@ctr.columbia.edu>.  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 Bill Paul.
   * 4. Neither the name of the author nor the names of any co-contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``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 Bill Paul OR THE VOICES IN HIS HEAD
   * 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.
   *
   * $FreeBSD: src/sys/dev/wi/if_wi_pci.c,v 1.8.2.2 2002/04/29 21:22:59 imp Exp $
   */
  
  /*
   * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
   *
   * Written by Bill Paul <wpaul@ctr.columbia.edu>
   * Electrical Engineering Department
   * Columbia University, New York City
   */
  
  #include <sys/param.h>
  #include <sys/kernel.h>
  #include <sys/socket.h>
  #include <sys/systm.h>
  #include <sys/module.h>
  #include <sys/bus.h>
  
  #include <machine/bus.h>
  #include <machine/resource.h>
  #include <machine/clock.h>
  #include <sys/rman.h>
  
  #include <pci/pcireg.h>
  #include <pci/pcivar.h>
  
  #include <net/if.h>
  #include <net/if_arp.h>
  #include <net/ethernet.h>
  #include <net/if_media.h>
  #include <net/if_types.h>
  #include <net/if_ieee80211.h>
  
  #include <dev/wi/if_wavelan_ieee.h>
  #include <dev/wi/wi_hostap.h>
  #include <dev/wi/if_wivar.h>
  #include <dev/wi/if_wireg.h>
  
  static int wi_pci_probe(device_t);
  static int wi_pci_attach(device_t);
  
  static device_method_t wi_pci_methods[] = {
  	/* Device interface */
  	DEVMETHOD(device_probe,		wi_pci_probe),
  	DEVMETHOD(device_attach,	wi_pci_attach),
  	DEVMETHOD(device_detach,	wi_generic_detach),
  	DEVMETHOD(device_shutdown,	wi_shutdown),
  
  	{ 0, 0 }
  };
  
  static driver_t wi_pci_driver = {
  	"wi",
  	wi_pci_methods,
  	sizeof(struct wi_softc)
  };
  
  static struct {
  	unsigned int vendor,device;
  	int bus_type;
  	char *desc;
  } pci_ids[] = {
  	/* Sorted by description */
  	{0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
  	{0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
  	{0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
  	{0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
  	{0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
  	{0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
  	{0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
  	{0, 0, 0, NULL}
  };
  
  DRIVER_MODULE(if_wi, pci, wi_pci_driver, wi_devclass, 0, 0);
  
  static int
  wi_pci_probe(dev)
  	device_t	dev;
  {
  	struct wi_softc		*sc;
  	int i;
  
  	sc = device_get_softc(dev);
  	for(i=0; pci_ids[i].vendor != 0; i++) {
  		if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
  			(pci_get_device(dev) == pci_ids[i].device)) {
  			sc->wi_bus_type = pci_ids[i].bus_type;
  			device_set_desc(dev, pci_ids[i].desc);
  			return (0);
  		}
  	}
  	return(ENXIO);
  }
  
  static int
  wi_pci_attach(device_t dev)
  {
  	struct wi_softc		*sc;
  	u_int32_t		command, wanted;
  	u_int16_t		reg;
  	int			error;
  	int			timeout;
  
  	sc = device_get_softc(dev);
  
  	command = pci_read_config(dev, PCIR_COMMAND, 4);
  	wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN;
  	command |= wanted;
  	pci_write_config(dev, PCIR_COMMAND, command, 4);
  	command = pci_read_config(dev, PCIR_COMMAND, 4);
  	if ((command & wanted) != wanted) {
  		device_printf(dev, "wi_pci_attach() failed to enable pci!\n");
  		return (ENXIO);
  	}
  
  	if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
  		error = wi_alloc(dev, WI_PCI_IORES);
  		if (error)
  			return (error);
  
  		/* Make sure interrupts are disabled. */
  		CSR_WRITE_2(sc, WI_INT_EN, 0);
  		CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
  
  		/* We have to do a magic PLX poke to enable interrupts */
  		sc->local_rid = WI_PCI_LOCALRES;
  		sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT,
  		    &sc->local_rid, 0, ~0, 1, RF_ACTIVE);
  		sc->wi_localtag = rman_get_bustag(sc->local);
  		sc->wi_localhandle = rman_get_bushandle(sc->local);
  		command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
  		    WI_LOCAL_INTCSR);
  		command |= WI_LOCAL_INTEN;
  		bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
  		    WI_LOCAL_INTCSR, command);
  		bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
  		    sc->local);
  		sc->local = NULL;
  
  		sc->mem_rid = WI_PCI_MEMRES;
  		sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
  					0, ~0, 1, RF_ACTIVE);
  		if (sc->mem == NULL) {
  			device_printf(dev, "couldn't allocate memory\n");
  			wi_free(dev);
  			return (ENXIO);
  		}
  		sc->wi_bmemtag = rman_get_bustag(sc->mem);
  		sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
  
  		/*
  		 * From Linux driver:
  		 * Write COR to enable PC card
  		 * This is a subset of the protocol that the pccard bus code
  		 * would do.
  		 */
  		CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 
  		reg = CSM_READ_1(sc, WI_COR_OFFSET);
  		if (reg != WI_COR_VALUE) {
  			device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
  			    "wanted %d, got %d\n", WI_COR_VALUE, reg);
  			wi_free(dev);
  			return (ENXIO);
  		}
  	} else {
  		error = wi_alloc(dev, WI_PCI_LMEMRES);
  		if (error)
  			return (error);
  
  		CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080);
  		DELAY(250000);
  
  		CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000);
  		DELAY(500000);
  
  		timeout=2000000;
  		while ((--timeout > 0) &&
  		    (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
  			DELAY(10);
  
  		if (timeout == 0) {
  			device_printf(dev, "couldn't reset prism2.5 core.\n");
  			wi_free(dev);
  			return(ENXIO);
  		}
  	}
  
  	CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
  	reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
  	if (reg != WI_PRISM2STA_MAGIC) {
  		device_printf(dev,
  		    "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
  		    "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
  		wi_free(dev);
  		return (ENXIO);
  	}
  
  	error = wi_generic_attach(dev);
  	if (error != 0)
  		return (error);
  
  	return (0);
  }
  