/* $NetBSD: if_ie_subr.c,v 1.2 1994/12/13 18:31:48 gwr Exp $ */ /* * Copyright (c) 1994 Gordon W. Ross * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Gordon Ross * 4. The name of the Author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Machine-dependent glue for the Intel Ethernet (ie) driver. */ #include #include #include #include #include #include #ifdef INET #include #include #include #include #include #endif #include #include #include #include #include /* #include */ #include "if_iereg.h" #include "if_ie.h" static void ie_obreset __P((struct ie_softc *)); static void ie_obattend __P((struct ie_softc *)); static void ie_obrun __P((struct ie_softc *)); static void ie_vmereset __P((struct ie_softc *)); static void ie_vmeattend __P((struct ie_softc *)); static void ie_vmerun __P((struct ie_softc *)); int ie_md_match(parent, vcf, args) struct device *parent; void *vcf, *args; { struct cfdata *cf = vcf; struct confargs *ca = args; int x; switch (ca->ca_bustype) { case BUS_OBIO: if (ca->ca_paddr == -1) ca->ca_paddr = OBIO_INTEL_ETHER; sz = 1; break; case BUS_VME16: /* No default VME address. */ if (ca->ca_paddr == -1) return(0); sz = 2; break; default: return (0); } /* Default interrupt level. */ if (ca->ca_intpri == -1) ca->ca_intpri = 3; /* The peek returns non-zero on bus error. */ x = bus_peek(ca->ca_bustype, ca->ca_paddr, sz); return (x != -1); } void ie_md_attach(parent, self, args) struct device *parent; struct device *self; void *args; { struct ie_softc *sc = (void *) self; struct confargs *ca = args; caddr_t mem, reg; /* * *note*: we don't detect the difference between a VME3E and * a multibus/vme card. if you want to use a 3E you'll have * to fix this. */ switch (ca->ca_bustype) { case BUS_OBIO: sc->hard_type = IE_OBIO; sc->reset_586 = ie_obreset; sc->chan_attn = ie_obattend; sc->run_586 = ie_obrun; sc->memcopy = bcopy; sc->memzero = bzero; sc->sc_msize = 0x10000; /* XXX */ /* Map in the control register. */ reg = obio_alloc(ca->ca_paddr, OBIO_INTEL_ETHER_SIZE); if (reg == NULL) panic(": not enough obio space\n"); sc->sc_reg = reg; /* Allocate "shared" memory (DVMA space). */ mem = dvma_malloc(sc->sc_msize); if (mem == NULL) panic(": not enough dvma space"); sc->sc_maddr = mem; /* Install interrupt handler. */ isr_add_autovect(ie_intr, (void *)sc, ca->ca_intpri); /* XXX - to do... */ printf("unsupported (for now)\n"); return; #if 0 /* not yet... */ case BUS_VME16: { volatile struct ievme *iev; u_long rampaddr; int lcv; sc->hard_type = IE_VME; sc->reset_586 = ie_vmereset; sc->chan_attn = ie_vmeattend; sc->run_586 = ie_vmerun; sc->memcopy = wcopy; sc->memzero = wzero; sc->sc_msize = 0x10000; /* XXX */ sc->sc_reg = bus_mapin(ca->ca_paddr, sizeof(struct ievme), ca); /* XXX - Move this gunk into a separate function? */ iev = (volatile struct ievme *) sc->sc_reg; /* top 12 bits */ rampaddr = ca->ca_paddr & 0xfff00000; /* 4 more */ rampaddr = rampaddr | ((iev->status & IEVME_HADDR) << 16); sc->sc_maddr = bus_mapin((caddr_t)rampaddr, sc->sc_msize, aux); sc->sc_iobase = sc->sc_maddr; iev->pectrl = iev->pectrl | IEVME_PARACK; /* clear to start */ /* * set up mappings, direct map except for last page * which is mapped at zero and at high address (for * scp), zero ram */ for (lcv = 0; lcv < IEVME_MAPSZ - 1; lcv++) iev->pgmap[lcv] = IEVME_SBORDR | IEVME_OBMEM | lcv; iev->pgmap[IEVME_MAPSZ - 1] = IEVME_SBORDR | IEVME_OBMEM | 0; (sc->memzero)(sc->sc_maddr, sc->sc_msize); /* * set up pointers to data structures and buffer area. * scp is in double mapped page... get offset into page * and add to sc_maddr. */ sc->scp = (volatile struct ie_sys_conf_ptr *) (sc->sc_maddr + (IE_SCP_ADDR & (IEVME_PAGESIZE - 1))); sc->iscp = (volatile struct ie_int_sys_conf_ptr *) sc->sc_maddr; /* iscp @ location zero */ sc->scb = (volatile struct ie_sys_ctl_block *) sc->sc_maddr + sizeof(struct ie_int_sys_conf_ptr); /* scb follows iscp */ /* * rest of first page is unused, rest of ram * for buffers */ sc->buf_area = sc->sc_maddr + IEVME_PAGESIZE; sc->buf_area_sz = sc->sc_msize - IEVME_PAGESIZE; isr_add_vectored(ieintr, (void *)sc, ca->ca_intpri, ca->ca_intvec); } break; #endif /* not yet... */ default: printf("unknown\n"); return; } idprom_etheraddr(sc->sc_addr); /* ethernet addr */ } /* * MULTIBUS/VME support */ void ie_vmereset(sc) struct ie_softc *sc; { volatile struct ievme *iev = (struct ievme *) sc->sc_reg; iev->status = IEVME_RESET; delay(100); /* XXX could be shorter? */ iev->status = 0; } void ie_vmeattend(sc) struct ie_softc *sc; { volatile struct ievme *iev = (struct ievme *) sc->sc_reg; iev->status |= IEVME_ATTEN; /* flag! */ iev->status &= ~IEVME_ATTEN; /* down. */ } void ie_vmerun(sc) struct ie_softc *sc; { volatile struct ievme *iev = (struct ievme *) sc->sc_reg; iev->status |= (IEVME_ONAIR | IEVME_IENAB | IEVME_PEINT); } /* * onboard ie support */ void ie_obreset(sc) struct ie_softc *sc; { volatile struct ieob *ieo = (struct ieob *) sc->sc_reg; ieo->obctrl = 0; delay(100); /* XXX could be shorter? */ ieo->obctrl = IEOB_NORSET; } void ie_obattend(sc) struct ie_softc *sc; { volatile struct ieob *ieo = (struct ieob *) sc->sc_reg; ieo->obctrl |= IEOB_ATTEN; /* flag! */ ieo->obctrl &= ~IEOB_ATTEN; /* down. */ } void ie_obrun(sc) struct ie_softc *sc; { volatile struct ieob *ieo = (struct ieob *) sc->sc_reg; ieo->obctrl |= (IEOB_ONAIR|IEOB_IENAB|IEOB_NORSET); }