300 lines
8.3 KiB
C
300 lines
8.3 KiB
C
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#undef TRISADEBUG
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/*
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* Copyright (c) 1999 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 Onno van der Linden.
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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 <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/cpu.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/isa/isavar.h>
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#include <dev/ic/tropicreg.h>
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#include <dev/ic/tropicvar.h>
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int tr_isa_probe __P((struct device *, struct cfdata *, void *));
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int trtcm_isa_probe __P((struct device *, struct cfdata *, void *));
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int tribm_isa_probe __P((struct device *, struct cfdata *, void *));
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void tr_isa_attach __P((struct device *, struct device *, void *));
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int tr_isa_map_io __P((struct isa_attach_args *, bus_space_handle_t *,
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bus_space_handle_t *));
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void tr_isa_unmap_io __P((struct isa_attach_args *, bus_space_handle_t,
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bus_space_handle_t));
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int trtcm_isa_mediachange __P((struct tr_softc *));
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void trtcm_isa_mediastatus __P((struct tr_softc *, struct ifmediareq *));
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#ifdef TRISADEBUG
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void tr_isa_dumpaip __P((bus_space_tag_t, bus_space_handle_t));
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#endif
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/*
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* List of manufacturer specific probe routines. Order is important.
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*/
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int (*tr_isa_probe_list[])(struct device *, struct cfdata*, void *) = {
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trtcm_isa_probe,
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tribm_isa_probe,
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0
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};
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struct cfattach tr_isa_ca = {
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sizeof(struct tr_softc), tr_isa_probe, tr_isa_attach
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};
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int
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tr_isa_map_io(ia, pioh, mmioh)
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struct isa_attach_args *ia;
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bus_space_handle_t *pioh, *mmioh;
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{
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bus_size_t mmio;
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u_int8_t s;
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if (bus_space_map(ia->ia_iot, ia->ia_iobase, ia->ia_iosize, 0, pioh)) {
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printf("tr_isa_map_io: can't map PIO ports\n");
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return 1;
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}
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/* Read adapter switches and calculate addresses of MMIO. */
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s = bus_space_read_1(ia->ia_iot, *pioh, TR_SWITCH);
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if ((s & 0xfc) < ((TR_MMIO_MINADDR - TR_MMIO_OFFSET) >> 11) ||
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(s & 0xfc) > ((TR_MMIO_MAXADDR - TR_MMIO_OFFSET) >> 11)) {
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bus_space_unmap(ia->ia_iot, *pioh, ia->ia_iosize);
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return 1;
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}
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mmio = ((s & 0xfc) << 11) + TR_MMIO_OFFSET;
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if (bus_space_map(ia->ia_memt, mmio, TR_MMIO_SIZE, 0, mmioh)) {
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printf("tr_isa_map_io: can't map MMIO region 0x%05lx/%d\n",
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mmio, TR_MMIO_SIZE);
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bus_space_unmap(ia->ia_iot, *pioh, ia->ia_iosize);
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return 1;
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}
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return 0;
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}
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void
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tr_isa_unmap_io(ia, pioh, mmioh)
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struct isa_attach_args *ia;
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bus_space_handle_t pioh, mmioh;
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{
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bus_space_unmap(ia->ia_memt, mmioh, TR_MMIO_SIZE);
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bus_space_unmap(ia->ia_iot, pioh, ia->ia_iosize);
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}
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static u_char tr_isa_id[] = {
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5, 0, 4, 9, 4, 3, 4, 15, 3, 6, 3, 1, 3, 1, 3, 0, 3, 9, 3, 9, 3, 0, 2, 0
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};
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/*
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* XXX handle multiple IBM TR cards (sram mapping !!)
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*/
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int
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tr_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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struct isa_attach_args *ia = aux;
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int i;
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bus_size_t tr_id;
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bus_space_handle_t sramh, pioh, mmioh;
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int probecode;
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int matched = 0;
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for (i = 0; tr_isa_probe_list[i] != 0; i++) {
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probecode = tr_isa_probe_list[i](parent, match, aux);
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if (probecode < 0)
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return 0; /* Fail instantly. */
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if (probecode > 0)
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break; /* We have a match. */
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}
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if (tr_isa_probe_list[i] == 0)
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return 0; /* Nothing matched. */
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if (tr_isa_map_io(ia, &pioh, &mmioh))
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return 0;
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tr_id = TR_ID_OFFSET;
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matched = 1;
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for (i = 0; i < sizeof(tr_isa_id); i++) {
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if (bus_space_read_1(ia->ia_memt, mmioh, tr_id) !=
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tr_isa_id[i])
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matched = 0;
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tr_id += 2;
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}
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#ifdef TRISADEBUG
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tr_isa_dumpaip(ia->ia_memt, mmioh);
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#endif
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tr_isa_unmap_io(ia, pioh, mmioh);
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if (!matched) {
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return 0;
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}
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if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &sramh)) {
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printf("tr_isa_probe: can't map shared ram\n");
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return 0;
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}
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bus_space_unmap(ia->ia_memt, sramh, ia->ia_msize);
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return 1;
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}
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/*
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* tr_isa_attach - Make this interface available to the system-network-software.
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*/
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void
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tr_isa_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 tr_softc *sc = (void *) self;
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bus_size_t init_resp;
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struct isa_attach_args *ia = aux;
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int i;
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sc->sc_piot = ia->ia_iot;
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sc->sc_memt = ia->ia_memt;
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if (tr_isa_map_io(ia, &sc->sc_pioh, &sc->sc_mmioh))
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panic("tr_isa_attach: IO space vanished\n");
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/* set ACA offset */
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sc->sc_aca = TR_ACA_OFFSET;
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sc->sc_memwinsz = ia->ia_msize;
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/*
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* Determine total RAM on adapter and decide how much to use.
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* XXX Since we don't use RAM paging, use sc_memwinsz for now.
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*/
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sc->sc_memsize = sc->sc_memwinsz;
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sc->sc_memreserved = 0;
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/*
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* Reset the card.
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*/
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/* latch on an unconditional adapter reset */
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bus_space_write_1(sc->sc_piot, sc->sc_pioh, TR_RESET, 0);
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delay(50000); /* delay 50ms */
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/*
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* XXX set paging if we have the right type of card
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*/
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/* turn off adapter reset */
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bus_space_write_1(sc->sc_piot, sc->sc_pioh, TR_RELEASE, 0);
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/* Enable interrupts. */
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ACA_SETB(sc, ACA_ISRP_e, INT_ENABLE);
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/* Wait for an answer from the adapter. */
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for (i = 0; i < 35000; i++) {
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if (ACA_RDB(sc, ACA_ISRP_o) & SRB_RESP_INT)
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break;
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delay(100);
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}
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if ((ACA_RDB(sc, ACA_ISRP_o) & SRB_RESP_INT) == 0) {
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printf("\nNo response from adapter after reset\n");
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return;
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}
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ACA_RSTB(sc, ACA_ISRP_o, ~(SRB_RESP_INT));
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/*
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* XXX just set it ?
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* XXXchb size mismatch between ia_maddr and MM_INB!
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*/
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#if 0
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if (ia->ia_maddr != MM_INB(sc, TR_ACA_OFFSET))
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MM_OUTB(sc, TR_ACA_OFFSET, (ia->ia_maddr >> 12));
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#else
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/* XXXchb must be set after reset */
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ACA_OUTB(sc, ACA_RRR_e, (ia->ia_maddr >> 12));
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#endif
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if (bus_space_map(sc->sc_memt, ia->ia_maddr, ia->ia_msize, 0,
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&sc->sc_sramh))
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panic("tr_isa_attach: shared ram space vanished\n");
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sc->sc_srb = ACA_RDW(sc, ACA_WRBR);
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init_resp = sc->sc_srb;
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if (SRB_INB(sc, init_resp, SRB_CMD) != 0x80) {
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printf("\nInitialization incomplete, status: %02x",
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SRB_INB(sc, init_resp, SRB_CMD));
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return;
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}
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if (SRB_INB(sc, init_resp, SRB_INIT_BUC) != 0) {
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printf("\nBring Up Code %02x",
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SRB_INB(sc, init_resp, SRB_INIT_BUC));
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return;
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}
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if (ia->ia_aux != NULL) {
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sc->sc_mediastatus = trtcm_isa_mediastatus;
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sc->sc_mediachange = trtcm_isa_mediachange;
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}
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else {
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sc->sc_mediastatus = NULL;
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sc->sc_mediachange = NULL;
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}
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if (tr_config(sc) != 0)
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return;
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/*
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* XXX 3Com 619 can use LEVEL intr
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*/
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sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
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IPL_NET, tr_intr, sc);
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}
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#ifdef TRISADEBUG
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/*
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* Dump the adapters AIP
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*/
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void
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tr_isa_dumpaip(memt, mmioh)
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bus_space_tag_t memt;
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bus_space_handle_t mmioh;
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{
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unsigned int off, val;
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printf("AIP contents:");
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for (off=0; off < 256; off++) {
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val = bus_space_read_1(memt, mmioh, TR_MAC_OFFSET + off);
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if ((off % 16) == 0)
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printf("\n");
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printf("%02x ", val);
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}
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printf("\n");
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}
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#endif
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