268 lines
7.2 KiB
C
268 lines
7.2 KiB
C
/* $NetBSD: if_cs_ofisa.c,v 1.4 2000/12/26 09:42:21 mycroft Exp $ */
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/*-
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* Copyright (c) 1998 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 Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include "rnd.h"
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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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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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/isa/isavar.h>
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#include <dev/ofisa/ofisavar.h>
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#include <dev/isa/cs89x0reg.h>
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#include <dev/isa/cs89x0var.h>
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int cs_ofisa_match __P((struct device *, struct cfdata *, void *));
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void cs_ofisa_attach __P((struct device *, struct device *, void *));
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struct cfattach cs_ofisa_ca = {
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sizeof(struct cs_softc), cs_ofisa_match, cs_ofisa_attach
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};
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int
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cs_ofisa_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct ofisa_attach_args *aa = aux;
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const char *compatible_strings[] = {
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"CRUS,CS8900",
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/* XXX CS8920, CS8920M? */
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/* XXX PNP names? */
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NULL,
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};
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int rv = 0;
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if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
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rv = 5;
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#ifdef _CS_OFISA_MD_MATCH
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if (rv == 0)
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rv = cs_ofisa_md_match(parent, cf, aux);
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#endif
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return (rv);
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}
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void
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cs_ofisa_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 cs_softc *sc = (struct cs_softc *) self;
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struct ofisa_attach_args *aa = aux;
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struct ofisa_reg_desc reg[2];
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struct ofisa_intr_desc intr;
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struct ofisa_dma_desc dma;
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int i, n, *media, nmedia, defmedia;
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bus_addr_t io_addr, mem_addr;
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char *model = NULL;
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const char *message = NULL;
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u_int8_t enaddr[6];
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sc->sc_ic = aa->ic;
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sc->sc_iot = aa->iot;
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sc->sc_memt = aa->memt;
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/*
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* We're living on an OFW. We have to ask the OFW what our
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* registers and interrupts properties look like.
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*
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* We expect:
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*
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* 1 i/o register region
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* 0 or 1 memory region
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* 1 interrupt
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* 0 or 1 dma channel
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*/
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io_addr = mem_addr = -1;
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n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
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#ifdef _CS_OFISA_MD_REG_FIXUP
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n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
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#endif
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if (n < 1 || n > 2) {
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printf(": error getting register data\n");
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return;
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}
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for (i = 0; i < n; i++) {
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if (reg[i].type == OFISA_REG_TYPE_IO) {
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if (io_addr != (bus_addr_t) -1) {
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printf(": multiple I/O regions\n");
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return;
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}
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if (reg[i].len != CS8900_IOSIZE) {
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printf(": weird register size (%lu, expected %d)\n",
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(unsigned long)reg[i].len, CS8900_IOSIZE);
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return;
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}
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io_addr = reg[i].addr;
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} else {
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if (mem_addr != (bus_addr_t) -1) {
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printf(": multiple memory regions\n");
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return;
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}
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if (reg[i].len != CS8900_MEMSIZE) {
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printf(": weird register size (%lu, expected %d)\n",
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(unsigned long)reg[i].len, CS8900_MEMSIZE);
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return;
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}
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mem_addr = reg[i].addr;
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}
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}
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n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
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#ifdef _CS_OFISA_MD_INTR_FIXUP
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n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
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#endif
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if (n != 1) {
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printf(": error getting interrupt data\n");
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return;
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}
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sc->sc_irq = intr.irq;
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if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) {
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printf(": invalid IRQ %d\n", sc->sc_irq);
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return;
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}
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sc->sc_drq = ISACF_DRQ_DEFAULT;
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n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1);
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#ifdef _CS_OFISA_MD_DMA_FIXUP
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n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n);
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#endif
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if (n == 1)
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sc->sc_drq = dma.drq;
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if (io_addr == (bus_addr_t) -1) {
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printf(": no I/O space\n");
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return;
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}
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if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0,
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&sc->sc_ioh)) {
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printf(": unable to map register space\n");
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return;
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}
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if (mem_addr != (bus_addr_t) -1) {
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if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0,
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&sc->sc_memh)) {
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message = "unable to map memory space";
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} else {
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sc->sc_cfgflags |= CFGFLG_MEM_MODE;
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sc->sc_pktpgaddr = mem_addr;
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}
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}
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/* Dig MAC address out of the firmware. */
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if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr,
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sizeof(enaddr)) < 0) {
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printf(": unable to get Ethernet address\n");
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return;
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}
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/* Dig media out of the firmware. */
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media = of_network_decode_media(aa->oba.oba_phandle, &nmedia,
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&defmedia);
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#ifdef _CS_OFISA_MD_MEDIA_FIXUP
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media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia,
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&defmedia);
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#endif
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if (media == NULL) {
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printf(": unable to get media information\n");
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return;
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}
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n = OF_getproplen(aa->oba.oba_phandle, "model");
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if (n > 0) {
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model = alloca(n);
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if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
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model = NULL; /* Safe; alloca is on-stack */
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}
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if (model != NULL)
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printf(": %s\n", model);
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else
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printf("\n");
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if (message != NULL)
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printf("%s: %s\n", sc->sc_dev.dv_xname, message);
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if (defmedia == -1) {
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printf("%s: unable to get default media\n",
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sc->sc_dev.dv_xname);
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defmedia = media[0]; /* XXX What to do? */
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}
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sc->sc_ih = isa_intr_establish(sc->sc_ic, sc->sc_irq, intr.share,
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IPL_NET, cs_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: unable to establish interrupt\n",
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sc->sc_dev.dv_xname);
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return;
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}
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#ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP
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sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux);
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#endif
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cs_attach(sc, enaddr, media, nmedia, defmedia);
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/* This is malloc'd. */
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free(media, M_DEVBUF);
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}
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