403 lines
11 KiB
C
403 lines
11 KiB
C
/* $NetBSD: if_le_isa.c,v 1.26 2001/05/30 11:46:33 mrg Exp $ */
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/*-
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* Copyright (c) 1997, 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 Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
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* Simulation Facility, 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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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include "opt_inet.h"
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#include "bpfilter.h"
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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/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.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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#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/cpu.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <dev/ic/lancereg.h>
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#include <dev/ic/lancevar.h>
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#include <dev/ic/am7990reg.h>
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#include <dev/ic/am7990var.h>
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#include <dev/isa/if_levar.h>
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int ne2100_isa_probe __P((struct device *, struct cfdata *, void *));
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int bicc_isa_probe __P((struct device *, struct cfdata *, void *));
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void le_dummyattach __P((struct device *, struct device *, void *));
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int le_dummyprobe __P((struct device *, struct cfdata *, void *));
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void le_ne2100_attach __P((struct device *, struct device *, void *));
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void le_bicc_attach __P((struct device *, struct device *, void *));
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struct cfattach nele_ca = {
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sizeof(struct device), ne2100_isa_probe, le_dummyattach
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}, le_nele_ca = {
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sizeof(struct le_softc), le_dummyprobe, le_ne2100_attach
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}, bicc_ca = {
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sizeof(struct device), bicc_isa_probe, le_dummyattach
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}, le_bicc_ca = {
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sizeof(struct le_softc), le_dummyprobe, le_bicc_attach
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};
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struct le_isa_params {
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char *name;
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int iosize, rap, rdp;
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int macstart, macstride;
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} ne2100_params = {
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"NE2100",
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24, NE2100_RAP, NE2100_RDP,
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0, 1
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}, bicc_params = {
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"BICC Isolan",
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16, BICC_RAP, BICC_RDP,
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0, 2
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};
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int lance_isa_probe __P((struct isa_attach_args *, struct le_isa_params *));
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void le_isa_attach __P((struct device *, struct le_softc *,
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struct isa_attach_args *, struct le_isa_params *));
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int le_isa_intredge __P((void *));
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#if defined(_KERNEL_OPT)
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#include "opt_ddb.h"
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#endif
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#ifdef DDB
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#define integrate
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#define hide
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#else
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#define integrate static __inline
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#define hide static
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#endif
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hide void le_isa_wrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
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hide u_int16_t le_isa_rdcsr __P((struct lance_softc *, u_int16_t));
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#define LE_ISA_MEMSIZE 16384
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hide void
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le_isa_wrcsr(sc, port, val)
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struct lance_softc *sc;
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u_int16_t port, val;
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{
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struct le_softc *lesc = (struct le_softc *)sc;
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bus_space_tag_t iot = lesc->sc_iot;
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bus_space_handle_t ioh = lesc->sc_ioh;
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bus_space_write_2(iot, ioh, lesc->sc_rap, port);
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bus_space_write_2(iot, ioh, lesc->sc_rdp, val);
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}
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hide u_int16_t
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le_isa_rdcsr(sc, port)
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struct lance_softc *sc;
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u_int16_t port;
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{
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struct le_softc *lesc = (struct le_softc *)sc;
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bus_space_tag_t iot = lesc->sc_iot;
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bus_space_handle_t ioh = lesc->sc_ioh;
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u_int16_t val;
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bus_space_write_2(iot, ioh, lesc->sc_rap, port);
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val = bus_space_read_2(iot, ioh, lesc->sc_rdp);
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return (val);
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}
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int
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ne2100_isa_probe(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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return (lance_isa_probe(aux, &ne2100_params));
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}
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int
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bicc_isa_probe(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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return (lance_isa_probe(aux, &bicc_params));
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}
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/*
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* Determine which chip is present on the card.
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*/
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int
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lance_isa_probe(ia, p)
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struct isa_attach_args *ia;
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struct le_isa_params *p;
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{
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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int rap, rdp;
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int rv = 0;
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/* Disallow wildcarded i/o address. */
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if (ia->ia_iobase == ISACF_PORT_DEFAULT)
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return (0);
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh))
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return (0);
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rap = p->rap;
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rdp = p->rdp;
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/* Stop the LANCE chip and put it in a known state. */
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bus_space_write_2(iot, ioh, rap, LE_CSR0);
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bus_space_write_2(iot, ioh, rdp, LE_C0_STOP);
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delay(100);
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bus_space_write_2(iot, ioh, rap, LE_CSR0);
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if (bus_space_read_2(iot, ioh, rdp) != LE_C0_STOP)
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goto bad;
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bus_space_write_2(iot, ioh, rap, LE_CSR3);
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bus_space_write_2(iot, ioh, rdp, 0);
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ia->ia_iosize = p->iosize;
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rv = 1;
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bad:
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bus_space_unmap(iot, ioh, p->iosize);
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return (rv);
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}
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void
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le_dummyattach(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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printf("\n");
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config_found(self, aux, 0);
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}
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int
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le_dummyprobe(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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return (1);
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}
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void
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le_ne2100_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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le_isa_attach(parent, (void *)self, aux, &ne2100_params);
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}
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void
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le_bicc_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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le_isa_attach(parent, (void *)self, aux, &bicc_params);
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}
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void
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le_isa_attach(parent, lesc, ia, p)
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struct device *parent;
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struct le_softc *lesc;
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struct isa_attach_args *ia;
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struct le_isa_params *p;
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{
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struct lance_softc *sc = &lesc->sc_am7990.lsc;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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bus_dma_tag_t dmat = ia->ia_dmat;
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bus_dma_segment_t seg;
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int i, rseg, error;
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printf(": %s Ethernet\n", p->name);
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if (bus_space_map(iot, ia->ia_iobase, p->iosize, 0, &ioh))
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panic("%s: can't map io", sc->sc_dev.dv_xname);
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/*
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* Extract the physical MAC address from the ROM.
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*/
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for (i = 0; i < sizeof(sc->sc_enaddr); i++)
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sc->sc_enaddr[i] =
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bus_space_read_1(iot, ioh, p->macstart + i * p->macstride);
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lesc->sc_iot = iot;
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lesc->sc_ioh = ioh;
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lesc->sc_dmat = dmat;
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lesc->sc_rap = p->rap;
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lesc->sc_rdp = p->rdp;
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/*
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* Allocate a DMA area for the card.
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*/
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if (bus_dmamem_alloc(dmat, LE_ISA_MEMSIZE, PAGE_SIZE, 0, &seg, 1,
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&rseg, BUS_DMA_NOWAIT)) {
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printf("%s: couldn't allocate memory for card\n",
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sc->sc_dev.dv_xname);
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return;
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}
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if (bus_dmamem_map(dmat, &seg, rseg, LE_ISA_MEMSIZE,
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(caddr_t *)&sc->sc_mem,
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BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) {
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printf("%s: couldn't map memory for card\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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* Create and load the DMA map for the DMA area.
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*/
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if (bus_dmamap_create(dmat, LE_ISA_MEMSIZE, 1,
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LE_ISA_MEMSIZE, 0, BUS_DMA_NOWAIT, &lesc->sc_dmam)) {
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printf("%s: couldn't create DMA map\n",
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sc->sc_dev.dv_xname);
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bus_dmamem_free(dmat, &seg, rseg);
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return;
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}
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if (bus_dmamap_load(dmat, lesc->sc_dmam,
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sc->sc_mem, LE_ISA_MEMSIZE, NULL, BUS_DMA_NOWAIT)) {
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printf("%s: coundn't load DMA map\n",
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sc->sc_dev.dv_xname);
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bus_dmamem_free(dmat, &seg, rseg);
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return;
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}
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sc->sc_conf3 = 0;
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sc->sc_addr = lesc->sc_dmam->dm_segs[0].ds_addr;
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sc->sc_memsize = LE_ISA_MEMSIZE;
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sc->sc_copytodesc = lance_copytobuf_contig;
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sc->sc_copyfromdesc = lance_copyfrombuf_contig;
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sc->sc_copytobuf = lance_copytobuf_contig;
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sc->sc_copyfrombuf = lance_copyfrombuf_contig;
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sc->sc_zerobuf = lance_zerobuf_contig;
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sc->sc_rdcsr = le_isa_rdcsr;
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sc->sc_wrcsr = le_isa_wrcsr;
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sc->sc_hwinit = NULL;
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if (ia->ia_drq != DRQUNK) {
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if ((error = isa_dmacascade(ia->ia_ic, ia->ia_drq)) != 0) {
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printf("%s: unable to cascade DRQ, error = %d\n",
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sc->sc_dev.dv_xname, error);
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return;
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}
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}
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lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
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IPL_NET, le_isa_intredge, sc);
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printf("%s", sc->sc_dev.dv_xname);
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am7990_config(&lesc->sc_am7990);
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}
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/*
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* Controller interrupt.
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*/
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int
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le_isa_intredge(arg)
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void *arg;
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{
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if (am7990_intr(arg) == 0)
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return (0);
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for (;;)
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if (am7990_intr(arg) == 0)
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return (1);
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}
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