239 lines
6.9 KiB
C
239 lines
6.9 KiB
C
/* $NetBSD: if_ate_mca.c,v 1.3 2001/11/13 07:46:25 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 ATI AT1720X MCA cards based on Fujitsu MB8696xA controller.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ate_mca.c,v 1.3 2001/11/13 07:46:25 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/socket.h>
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#include <sys/syslog.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ic/mb86960reg.h>
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#include <dev/ic/mb86960var.h>
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#include <dev/ic/ate_subr.h>
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#include <dev/mca/mcavar.h>
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#include <dev/mca/mcadevs.h>
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#include <dev/isa/if_fereg.h> /* XXX */
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int ate_mca_match __P((struct device *, struct cfdata *, void *));
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void ate_mca_attach __P((struct device *, struct device *, void *));
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static void ate_mca_detect __P((bus_space_tag_t, bus_space_handle_t,
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u_int8_t enaddr[ETHER_ADDR_LEN]));
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#define ATE_NPORTS 0x20
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struct ate_softc {
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struct mb86960_softc sc_mb86960; /* real "mb86960" softc */
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/* MCA-specific goo. */
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void *sc_ih; /* interrupt cookie */
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};
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struct cfattach ate_mca_ca = {
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sizeof(struct ate_softc), ate_mca_match, ate_mca_attach
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};
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static const struct ate_mca_product {
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u_int32_t at_prodid; /* MCA product ID */
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const char *at_name; /* device name */
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int at_type; /* device type */
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} ate_mca_products[] = {
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{ MCA_PRODUCT_AT1720T, "ATI AT1720T", FE_TYPE_AT1700T },
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{ MCA_PRODUCT_AT1720BT, "ATI AT1720BT", FE_TYPE_AT1700BT },
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{ MCA_PRODUCT_AT1720AT, "ATI AT1720AT", FE_TYPE_AT1700AT },
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{ MCA_PRODUCT_AT1720FT, "ATI AT1720FT", FE_TYPE_AT1700FT },
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{ 0, },
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};
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static const struct ate_mca_product *ate_mca_lookup __P((u_int32_t));
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static const struct ate_mca_product *
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ate_mca_lookup(id)
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u_int32_t id;
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{
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const struct ate_mca_product *atp;
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for (atp = ate_mca_products; atp->at_name != NULL; atp++)
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if (id == atp->at_prodid)
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return (atp);
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return (NULL);
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}
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int
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ate_mca_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mca_attach_args *ma = (struct mca_attach_args *) aux;
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if (ate_mca_lookup(ma->ma_id) != NULL)
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return (1);
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return (0);
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}
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/* see POS diagrams below for explanation of these arrays' contents */
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static const int ats_iobase[] = {
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0x400, 0x2400, 0x4400, 0x6400, 0x1400, 0x3400, 0x5400, 0x7400
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};
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static const int ats_irq[] = {
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3, 4, 5, 9, 10, 11, 12, 15
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};
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void
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ate_mca_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct ate_softc *isc = (struct ate_softc *)self;
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struct mb86960_softc *sc = &isc->sc_mb86960;
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struct mca_attach_args *ma = aux;
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bus_space_tag_t iot = ma->ma_iot;
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bus_space_handle_t ioh;
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u_int8_t myea[ETHER_ADDR_LEN];
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int type, pos3, pos4;
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int iobase, irq;
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const struct ate_mca_product *atp;
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pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3);
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pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4);
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/*
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* POS register 2: (adf pos0)
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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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*
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* POS register 3: (adf pos1)
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*
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* 7 6 5 4 3 2 1 0
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* \_/ \___/ \___/
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* \ \ \__ I/O Port Addresses: 000=0x400-0x4FF 100=0x1400-
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* \ \ 001=0x2400 101=0x3400 010=0x4400 110=0x5400
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* \ \ 011=0x6400 111=0x7400
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* \ \_____ Boot ROM Memory Address
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* \
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* \_________ Lower 2 bit of Interrupt Request Number
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*
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* POS register 4: (adf pos2)
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*
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* 7 6 5 4 3 2 1 0
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* \ \_______ Twisted Pair Type: 0=100 ohm, Unshielded
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* \ 1=150 ohm, Shielded
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* \____________ Higher 1 bit of Interrupt Request Number:
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* 000=3 001=4 010=5 011=9 100=10 101=11 110=12 111=15
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*/
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atp = ate_mca_lookup(ma->ma_id);
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#ifdef DIAGNOSTIC
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if (atp == NULL) {
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printf("\n%s: where did the card go?\n", sc->sc_dev.dv_xname);
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return;
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}
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#endif
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iobase = ats_iobase[pos3 & 0x7];
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irq = ats_irq[((pos4 & 0x40) >> 4) | ((pos3 & 0xc0) >> 6)];
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printf(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq, atp->at_name);
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/* Map i/o space. */
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if (bus_space_map(iot, iobase, ATE_NPORTS, 0, &ioh)) {
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printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_bst = iot;
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sc->sc_bsh = ioh;
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/* Determine the card type and get ethernet address. */
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ate_mca_detect(iot, ioh, myea);
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type = atp->at_type;
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/* This interface is always enabled. */
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sc->sc_flags |= FE_FLAGS_ENABLED;
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/*
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* Do generic MB86960 attach.
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*/
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mb86960_attach(sc, MB86960_TYPE_86965, myea);
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mb86960_config(sc, NULL, 0, 0);
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/* Establish the interrupt handler. */
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isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET,
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mb86960_intr, sc);
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if (isc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt handler\n",
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sc->sc_dev.dv_xname);
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return;
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}
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}
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/*
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* Very simplified ate_detect() from dev/isa/if_ate.c, only
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* to determine ethernet address.
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*/
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static void
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ate_mca_detect(iot, ioh, enaddr)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int8_t enaddr[ETHER_ADDR_LEN];
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{
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u_char eeprom[FE_EEPROM_SIZE];
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/* Get our station address from EEPROM. */
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ate_read_eeprom(iot, ioh, eeprom);
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bcopy(eeprom + FE_ATI_EEP_ADDR, enaddr, ETHER_ADDR_LEN);
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}
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