223 lines
6.4 KiB
C
223 lines
6.4 KiB
C
/* $NetBSD: if_ne_mca.c,v 1.3 2001/11/13 07:46:26 lukem Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jaromir Dolecek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Driver for Novell NE/2 Ethernet Adapter (and clones).
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*
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* According to Linux ne2 driver, Arco and Compex card should be also
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* supported by this driver. However, NetBSD driver was only tested
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* with the Novell adapter so far.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ne_mca.c,v 1.3 2001/11/13 07:46:26 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_media.h>
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#include <net/if_ether.h>
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#include <machine/bus.h>
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#include <dev/ic/dp8390reg.h>
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#include <dev/ic/dp8390var.h>
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#include <dev/ic/ne2000reg.h>
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#include <dev/ic/ne2000var.h>
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#include <dev/ic/rtl80x9reg.h>
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#include <dev/ic/rtl80x9var.h>
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#include <dev/mca/mcadevs.h>
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#include <dev/mca/mcavar.h>
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#define NE2_NPORTS 0x30
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struct ne_mca_softc {
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struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
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/* MCA-specific goo */
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void *sc_ih; /* interrupt handle */
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};
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int ne_mca_match __P((struct device *, struct cfdata *, void *));
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void ne_mca_attach __P((struct device *, struct device *, void *));
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struct cfattach ne_mca_ca = {
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sizeof(struct ne_mca_softc), ne_mca_match, ne_mca_attach
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};
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static const struct ne_mca_products {
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u_int32_t ne_id;
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const char *ne_name;
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} ne_mca_products[] = {
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{ MCA_PRODUCT_ARCOAE, "Arco Electronics AE/2 Ethernet Adapter" },
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{ MCA_PRODUCT_NE2, "Novell NE/2 Ethernet Adapter" },
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{ MCA_PRODUCT_CENET16, "Compex Inc. PS/2 ENET16-MC/P Microchannel Ad."},
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{ 0, NULL }
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};
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static const struct ne_mca_products *ne_mca_lookup __P((int id));
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static const struct ne_mca_products *
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ne_mca_lookup(int id)
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{
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const struct ne_mca_products *np;
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for(np = ne_mca_products; np->ne_name; np++)
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if (id == np->ne_id)
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return (np);
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return (NULL);
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}
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int
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ne_mca_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct mca_attach_args *ma = aux;
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if (ne_mca_lookup(ma->ma_id))
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return (1);
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return (0);
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}
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/* These values were taken from NE/2 ADF file */
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static const int ne_mca_irq[] = {
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3, 4, 5, 9
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};
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static const int ne_mca_iobase[] = {
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0, 0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0
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};
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void
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ne_mca_attach(struct device *parent, struct device *self, void *aux)
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{
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struct ne_mca_softc *psc = (struct ne_mca_softc *)self;
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struct ne2000_softc *nsc = &psc->sc_ne2000;
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struct dp8390_softc *dsc = &nsc->sc_dp8390;
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struct mca_attach_args *ma = aux;
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bus_space_tag_t nict;
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bus_space_handle_t nich;
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bus_space_tag_t asict;
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bus_space_handle_t asich;
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int pos2, iobase, irq;
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const struct ne_mca_products *np;
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pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2);
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/*
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* POS register 2: (adf pos0)
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*
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* 7 6 5 4 3 2 1 0
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* \_/ | \___/ \__ enable: 0=adapter disabled, 1=adapter enabled
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* | | \____ I/O, Mem: 001=0x1000-0x102f 010=0x2020-0x204f
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* | | 011=0x8020-0x804f 100=0xa0a0-0xa0cf
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* | | 101=0xb0b0-0xb0df 110=0xc0c0-0xc0ef
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* \ \ 111=0xc3d0-0xc3ff
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* \ \________ Boot Rom: 1=disabled 0=enabled
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* \__________ Interrupt level: 00=3 01=4 10=5 11=9
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*/
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np = ne_mca_lookup(ma->ma_id);
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iobase = ne_mca_iobase[(pos2 & 0x0e) >> 1];
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irq = ne_mca_irq[(pos2 & 0x60) >> 5];
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printf(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq, np->ne_name);
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nict = ma->ma_iot;
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/* Map the device. */
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if (bus_space_map(nict, iobase, NE2_NPORTS, 0, &nich)) {
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printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
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return;
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}
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asict = nict;
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if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
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NE2000_ASIC_NPORTS, &asich)) {
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printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
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return;
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}
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dsc->sc_regt = nict;
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dsc->sc_regh = nich;
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nsc->sc_asict = asict;
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nsc->sc_asich = asich;
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/* This interface is always enabled. */
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dsc->sc_enabled = 1;
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dsc->sc_mediachange = NULL;
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dsc->sc_mediastatus = NULL;
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dsc->sc_media_init = NULL;
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dsc->init_card = NULL;
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/*
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* This is necessary for NE/2. Hopefully the other clones also work
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* this way.
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*/
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nsc->sc_type = NE2000_TYPE_AX88190;
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/*
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* Do generic NE2000 attach. This will read the station address
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* from the EEPROM.
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*/
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if (ne2000_attach(nsc, NULL))
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return;
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/* establish interrupt handler */
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psc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, dp8390_intr,
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dsc);
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if (psc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt handler\n",
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dsc->sc_dev.dv_xname);
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return;
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}
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}
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