freebsd-skq/sys/dev/vx/if_vx_eisa.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.
 *
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

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

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

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

#include <dev/eisa/eisaconf.h>

#include <dev/vx/if_vxreg.h>
#include <dev/vx/if_vxvar.h>

#define EISA_DEVICE_ID_3COM_3C592	0x506d5920
#define EISA_DEVICE_ID_3COM_3C597_TX	0x506d5970
#define EISA_DEVICE_ID_3COM_3C597_T4	0x506d5971
#define EISA_DEVICE_ID_3COM_3C597_MII	0x506d5972


#define	VX_EISA_SLOT_OFFSET		0x0c80
#define	VX_EISA_IOSIZE			0x000a
#define VX_RESOURCE_CONFIG		0x0008


static const char *vx_match(eisa_id_t type);

static const char*
vx_match(eisa_id_t type)
{
    switch (type) {
      case EISA_DEVICE_ID_3COM_3C592:
	return "3Com 3C592 Network Adapter";
      case EISA_DEVICE_ID_3COM_3C597_TX:
	return "3Com 3C597-TX Network Adapter";
      case EISA_DEVICE_ID_3COM_3C597_T4:
	return "3Com 3C597-T4 Network Adapter";
      case EISA_DEVICE_ID_3COM_3C597_MII:
	return "3Com 3C597-MII Network Adapter";
      default:
	break;
    }
    return (NULL);
}

static int
vx_eisa_probe(device_t dev)
{
    const char	   *desc;
    u_long          iobase;
    u_long          port;

    desc = vx_match(eisa_get_id(dev));
    if (!desc)
	return (ENXIO);
    device_set_desc(dev, desc);

    port = eisa_get_slot(dev) * EISA_SLOT_SIZE;
    iobase = port + VX_EISA_SLOT_OFFSET;

    eisa_add_iospace(dev, iobase, VX_EISA_IOSIZE, RESVADDR_NONE);
    eisa_add_iospace(dev, port, VX_IOSIZE, RESVADDR_NONE);

    /* Set irq */
    eisa_add_intr(dev, inw(iobase + VX_RESOURCE_CONFIG) >> 12,
		  EISA_TRIGGER_EDGE);

    return (0);
}

static int
vx_eisa_attach(device_t dev)
{
    struct vx_softc *sc;
    struct resource *io = 0;
    struct resource *eisa_io = 0;
    struct resource *irq = 0;
    int		    rid;
    void	    *ih;

    /*
     * The addresses are sorted in increasing order
     * so we know the port to pass to the core ep
     * driver comes first.
     */
    rid = 0;
    io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
			    0, ~0, 1, RF_ACTIVE);
    if (!io) {
	device_printf(dev, "No I/O space?!\n");
	goto bad;
    }

    rid = 1;
    eisa_io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
				 0, ~0, 1, RF_ACTIVE);
    if (!eisa_io) {
	device_printf(dev, "No I/O space?!\n");
	goto bad;
    }

    sc = device_get_softc(dev);

    sc->vx_res = io;
    sc->bst = rman_get_bustag(io);
    sc->bsh = rman_get_bushandle(io);

    rid = 0;
    irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
			     0, ~0, 1, RF_ACTIVE);
    if (!irq) {
	device_printf(dev, "No irq?!\n");
	goto bad;
    }

    sc->vx_irq = irq;

    /* Now the registers are availible through the lower ioport */

    vxattach(dev);

    if (bus_setup_intr(dev, irq, INTR_TYPE_NET, vxintr, sc, &ih)) {
	goto bad;
    }

    sc->vx_intrhand = ih;

    return 0;

 bad:
    if (io)
	bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
    if (eisa_io)
	bus_release_resource(dev, SYS_RES_IOPORT, 0, eisa_io);
    if (irq)
	bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
    return -1;
}

static device_method_t vx_eisa_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		vx_eisa_probe),
	DEVMETHOD(device_attach,	vx_eisa_attach),

	{ 0, 0 }
};

static driver_t vx_eisa_driver = {
	"vx",
	vx_eisa_methods,
	1,			/* unused */
};

static devclass_t vx_devclass;

DRIVER_MODULE(vx, eisa, vx_eisa_driver, vx_devclass, 0, 0);