NetBSD/sys/dev/pci/if_ne_pci.c

/*	$NetBSD: if_ne_pci.c,v 1.5 1998/04/10 01:28:59 thorpej Exp $	*/

/*-
 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
 * NASA Ames Research Center.
 *
 * 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 the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 "bpfilter.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>

#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>

#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif

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

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

#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>

#include <dev/ic/ne2000reg.h>
#include <dev/ic/ne2000var.h>

struct ne_pci_softc {
	struct ne2000_softc sc_ne2000;		/* real "ne2000" softc */

	/* PCI-specific goo */
	void *sc_ih;				/* interrupt handle */
};

#ifdef __BROKEN_INDIRECT_CONFIG
int ne_pci_match __P((struct device *, void *, void *));
#else
int ne_pci_match __P((struct device *, struct cfdata *, void *));
#endif
void ne_pci_attach __P((struct device *, struct device *, void *));

struct cfattach ne_pci_ca = {
	sizeof(struct ne_pci_softc), ne_pci_match, ne_pci_attach
};

struct ne_pci_compatdev {
	pci_vendor_id_t vendor;
	pci_product_id_t product;
	char *name;
};

struct ne_pci_compatdev ne_pci_compatdevs[] = {
	{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8029, "Realtek 8029" },
	{ PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F, "Winbond 89C940F" },
	{ PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT86C926,
		"VIA Technologies VT86C926" },
	{ 0, 0, NULL },
};

char *ne_pci_lookup __P((pcireg_t));

char *
ne_pci_lookup(id)
	pcireg_t id;
{
	struct ne_pci_compatdev *nc;

	for (nc = ne_pci_compatdevs; nc->vendor != 0; nc++) {
		if (PCI_VENDOR(id) == nc->vendor &&
		    PCI_PRODUCT(id) == nc->product)
			return (nc->name);
	}

	return (NULL);
}

/*
 * PCI constants.
 * XXX These should be in a common file!
 */
#define PCI_CBIO	0x10		/* Configuration Base IO Address */

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

	if (ne_pci_lookup(pa->pa_id) != NULL)
		return (1);

	return (0);
}

void
ne_pci_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	struct ne_pci_softc *psc = (struct ne_pci_softc *)self;
	struct ne2000_softc *nsc = &psc->sc_ne2000;
	struct dp8390_softc *dsc = &nsc->sc_dp8390;
	struct pci_attach_args *pa = aux;
	pci_chipset_tag_t pc = pa->pa_pc;
	bus_space_tag_t nict;
	bus_space_handle_t nich;
	bus_space_tag_t asict;
	bus_space_handle_t asich;
	const char *typestr = NULL, *intrstr;
	pci_intr_handle_t ih;
	pcireg_t csr;

	typestr = ne_pci_lookup(pa->pa_id);
	if (typestr == NULL) {
		printf(": unknown model?!\n");
		return;
	}

	printf(": %s Ethernet\n", typestr);

	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
	    &nict, &nich, NULL, NULL)) {
		printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
		return;
	}

	asict = nict;
	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
	    NE2000_ASIC_NPORTS, &asich)) {
		printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
		return;
	}

	dsc->sc_regt = nict;
	dsc->sc_regh = nich;

	nsc->sc_asict = asict;
	nsc->sc_asich = asich;

	/* Enable the card. */
	csr = pci_conf_read(pc, pa->pa_tag,
	    PCI_COMMAND_STATUS_REG);
	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
	    csr | PCI_COMMAND_MASTER_ENABLE);

	/* This interface is always enabled. */
	dsc->sc_enabled = 1;

	/*
	 * Do generic NE2000 attach.  This will read the station address
	 * from the EEPROM.
	 */
	ne2000_attach(nsc, NULL);

	/* Map and establish the interrupt. */
	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
	    pa->pa_intrline, &ih)) {
		printf("%s: couldn't map interrupt\n", dsc->sc_dev.dv_xname);
		return;
	}
	intrstr = pci_intr_string(pc, ih);
	psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc);
	if (psc->sc_ih == NULL) {
		printf("%s: couldn't establish interrupt",
		    dsc->sc_dev.dv_xname);
		if (intrstr != NULL)
			printf(" at %s", intrstr);
		printf("\n");
		return;
	}
	printf("%s: interrupting at %s\n", dsc->sc_dev.dv_xname, intrstr);
}