259 lines
6.4 KiB
C
259 lines
6.4 KiB
C
/* $NetBSD: if_sn_obio.c,v 1.14 1998/01/13 19:24:55 scottr Exp $ */
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/*
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* Copyright (C) 1997 Allen Briggs
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* All rights reserved.
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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 Allen Briggs
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/syslog.h>
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#include <sys/systm.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#if 0 /* XXX this shouldn't be necessary... else reinsert */
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#endif
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#endif
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/viareg.h>
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#include <mac68k/dev/obiovar.h>
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#include <mac68k/dev/if_snreg.h>
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#include <mac68k/dev/if_snvar.h>
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#define SONIC_REG_BASE 0x50F0A000
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#define SONIC_PROM_BASE 0x50F08000
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static int sn_obio_match __P((struct device *, struct cfdata *, void *));
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static void sn_obio_attach __P((struct device *, struct device *, void *));
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static int sn_obio_getaddr __P((struct sn_softc *, u_int8_t *));
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static int sn_obio_getaddr_kludge __P((struct sn_softc *, u_int8_t *));
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struct cfattach sn_obio_ca = {
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sizeof(struct sn_softc), sn_obio_match, sn_obio_attach
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};
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static int
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sn_obio_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 obio_attach_args *oa = (struct obio_attach_args *)aux;
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bus_space_handle_t bsh;
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int found = 0;
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if (!mac68k_machine.sonic)
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return 0;
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if (bus_space_map(oa->oa_tag,
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SONIC_REG_BASE, SN_REGSIZE, 0, &bsh))
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return 0;
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if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4))
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found = 1;
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bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE);
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return found;
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}
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/*
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* Install interface into kernel networking data structures
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*/
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static void
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sn_obio_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 obio_attach_args *oa = (struct obio_attach_args *)aux;
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struct sn_softc *sc = (void *)self;
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u_int8_t myaddr[ETHER_ADDR_LEN];
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int i;
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sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
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sc->snr_dcr2 = 0;
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sc->slotno = 9;
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switch (current_mac_model->machineid) {
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case MACH_MACC610:
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case MACH_MACC650:
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case MACH_MACQ610:
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case MACH_MACQ650:
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case MACH_MACQ700:
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case MACH_MACQ800:
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case MACH_MACQ900:
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case MACH_MACQ950:
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sc->snr_dcr |= DCR_EXBUS;
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sc->bitmode = 1;
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break;
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case MACH_MACLC575:
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case MACH_MACQ630:
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break;
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case MACH_MACPB500:
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sc->snr_dcr |= DCR_SYNC | DCR_LBR;
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sc->bitmode = 0; /* 16 bit interface */
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break;
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default:
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printf(": unsupported machine type\n");
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return;
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}
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sc->sc_regt = oa->oa_tag;
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if (bus_space_map(sc->sc_regt,
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SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) {
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printf(": failed to map space for SONIC regs.\n");
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return;
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}
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/* regs are addressed as words, big-endian. */
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for (i = 0; i < SN_NREGS; i++) {
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sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2);
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}
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/*
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* Kind of kludge this. Comm-slot cards do not really
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* have a visible type, as far as I can tell at this time,
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* so assume that MacOS had it properly configured and use
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* that configuration.
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*/
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switch (current_mac_model->machineid) {
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case MACH_MACLC575:
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case MACH_MACQ630:
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NIC_PUT(sc, SNR_CR, CR_RST); wbflush();
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i = NIC_GET(sc, SNR_DCR);
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sc->snr_dcr |= (i & 0xfff0);
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sc->bitmode = (i & DCR_DW) ? 1 : 0;
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break;
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default:
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break;
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}
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if (sn_obio_getaddr(sc, myaddr) &&
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sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */
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printf(": failed to get MAC address.\n");
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bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
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return;
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}
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/* snsetup returns 1 if something fails */
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if (snsetup(sc, myaddr)) {
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bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
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return;
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}
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add_nubus_intr(sc->slotno, snintr, (void *)sc);
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}
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static int
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sn_obio_getaddr(sc, lladdr)
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struct sn_softc *sc;
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u_int8_t *lladdr;
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{
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bus_space_handle_t bsh;
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if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, NBPG, 0, &bsh)) {
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printf(": failed to map space to read SONIC address.\n%s",
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sc->sc_dev.dv_xname);
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return (-1);
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}
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if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) {
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bus_space_unmap(sc->sc_regt, bsh, NBPG);
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return (-1);
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}
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sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr);
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bus_space_unmap(sc->sc_regt, bsh, NBPG);
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return 0;
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}
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/*
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* Assume that the SONIC was initialized in MacOS. This should go away
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* when we can properly get the MAC address on the PBs.
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*/
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static int
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sn_obio_getaddr_kludge(sc, lladdr)
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struct sn_softc *sc;
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u_int8_t *lladdr;
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{
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int i, ors = 0;
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/* Shut down NIC */
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NIC_PUT(sc, SNR_CR, CR_RST);
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wbflush();
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NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */
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wbflush();
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i = NIC_GET(sc, SNR_CAP2);
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wbflush();
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ors |= i;
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lladdr[5] = i >> 8;
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lladdr[4] = i;
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i = NIC_GET(sc, SNR_CAP1);
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wbflush();
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ors |= i;
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lladdr[3] = i >> 8;
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lladdr[2] = i;
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i = NIC_GET(sc, SNR_CAP0);
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wbflush();
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ors |= i;
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lladdr[1] = i >> 8;
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lladdr[0] = i;
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NIC_PUT(sc, SNR_CR, 0);
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wbflush();
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if (ors == 0)
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return -1;
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return 0;
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}
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