freebsd-skq/sys/dev/vx/if_vx_pci.c

/*
 * Copyright (C) 1996 Naoki Hamada <nao@tom-yam.or.jp>
 * 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. 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 THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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.
 *
 * $FreeBSD$
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>

#include <net/if.h>
#include <net/if_arp.h>

#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>

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

#include <dev/vx/if_vxreg.h>

static void vx_pci_shutdown(device_t);
static int vx_pci_probe(device_t);
static int vx_pci_attach(device_t);

static device_method_t vx_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		vx_pci_probe),
	DEVMETHOD(device_attach,	vx_pci_attach),
	DEVMETHOD(device_shutdown,	vx_pci_shutdown),

	{ 0, 0 }
};

static driver_t vx_driver = {
	"vx",
	vx_methods,
	sizeof(struct vx_softc)
};

static devclass_t vx_devclass;

DRIVER_MODULE(if_vx, pci, vx_driver, vx_devclass, 0, 0);

static void
vx_pci_shutdown(
	device_t dev)
{
   struct vx_softc	*sc;

   sc = device_get_softc(dev);
   vxstop(sc); 
   return;
}

static int
vx_pci_probe(
	device_t dev)
{
   u_int32_t		device_id;

   device_id = pci_read_config(dev, PCIR_DEVVENDOR, 4);

   if(device_id == 0x590010b7ul) {
      device_set_desc(dev, "3COM 3C590 Etherlink III PCI");
      return(0);
   }
   if(device_id == 0x595010b7ul || device_id == 0x595110b7ul ||
	device_id == 0x595210b7ul) {
      device_set_desc(dev, "3COM 3C595 Etherlink III PCI");
      return(0);
   }
	/*
	 * The (Fast) Etherlink XL adapters are now supported by
	 * the xl driver, which uses bus master DMA and is much
	 * faster. (And which also supports the 3c905B.
	 */
#ifdef VORTEX_ETHERLINK_XL
   if(device_id == 0x900010b7ul || device_id == 0x900110b7ul) {
      device_set_desc(dev, "3COM 3C900 Etherlink XL PCI");
      return(0);
   }
   if(device_id == 0x905010b7ul || device_id == 0x905110b7ul) {
      device_set_desc(dev, "3COM 3C905 Etherlink XL PCI");
      return(0);
   }
#endif
   return (ENXIO);
}

static int 
vx_pci_attach(
	device_t dev)
{
    struct vx_softc *sc;
    int rid;

    sc = device_get_softc(dev);

    rid = PCIR_MAPS;
    sc->vx_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
	0, ~0, 1, RF_ACTIVE);

    if (sc->vx_res == NULL)
	goto bad;

    sc->vx_btag = rman_get_bustag(sc->vx_res);
    sc->vx_bhandle = rman_get_bushandle(sc->vx_res);

    rid = 0;
    sc->vx_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
	RF_SHAREABLE | RF_ACTIVE);

    if (sc->vx_irq == NULL)
	goto bad;

    if (bus_setup_intr(dev, sc->vx_irq, INTR_TYPE_NET,
	vxintr, sc, &sc->vx_intrhand))
	goto bad;

    if (vxattach(sc) == 0) {
	goto bad;
    }

    /* defect check for 3C590 */
    if ((pci_read_config(dev, PCIR_DEVVENDOR, 4) >> 16) == 0x5900) {
	GO_WINDOW(0);
	if (vxbusyeeprom(sc))
	    goto bad;
	CSR_WRITE_2(sc, VX_W0_EEPROM_COMMAND,
	    EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
	if (vxbusyeeprom(sc))
	    goto bad;
	if (!(CSR_READ_2(sc, VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
	    printf("Warning! Defective early revision adapter!\n");
	}
    }

    return(0);

bad:
    if (sc->vx_intrhand != NULL)
	bus_teardown_intr(dev, sc->vx_irq, sc->vx_intrhand);
    if (sc->vx_res != NULL)
	bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->vx_res);
    if (sc->vx_irq != NULL)
	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->vx_irq);
    return(ENXIO);
}