/* $NetBSD: if_le.c,v 1.34 1996/05/16 15:56:54 abrown Exp $ */ /*- * Copyright (c) 1996 * The President and Fellows of Harvard College. All rights reserved. * Copyright (c) 1995 Charles M. Hannum. All rights reserved. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * 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 Aaron Brown and * Harvard University. * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * @(#)if_le.c 8.2 (Berkeley) 11/16/93 */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include #include #include #include int lematch __P((struct device *, void *, void *)); void leattach __P((struct device *, struct device *, void *)); #if defined(SUN4M) /* XXX */ int myleintr __P((void *)); int ledmaintr __P((struct dma_softc *)); int myleintr(arg) void *arg; { register struct le_softc *lesc = arg; if (lesc->sc_dma->sc_regs->csr & D_ERR_PEND) return ledmaintr(lesc->sc_dma); /* * XXX There is a bug somewhere in the interrupt code that causes stray * ethernet interrupts under high network load. This bug has been * impossible to locate, so until it is found, we just ignore stray * interrupts, as they do not in fact correspond to dropped packets. */ /* return */ am7990_intr(arg); return 1; } #endif struct cfattach le_ca = { sizeof(struct le_softc), lematch, leattach }; hide void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t)); hide u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t)); hide void lehwinit __P((struct am7990_softc *)); hide void lewrcsr(sc, port, val) struct am7990_softc *sc; u_int16_t port, val; { register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; ler1->ler1_rap = port; ler1->ler1_rdp = val; } hide u_int16_t lerdcsr(sc, port) struct am7990_softc *sc; u_int16_t port; { register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1; u_int16_t val; ler1->ler1_rap = port; val = ler1->ler1_rdp; return (val); } hide void lehwinit(sc) struct am7990_softc *sc; { #if defined(SUN4M) struct le_softc *lesc = (struct le_softc *)sc; if (CPU_ISSUN4M && lesc->sc_dma) { struct ifnet *ifp = &sc->sc_arpcom.ac_if; if (ifp->if_flags & IFF_LINK0) lesc->sc_dma->sc_regs->csr |= DE_AUI_TP; else lesc->sc_dma->sc_regs->csr &= ~DE_AUI_TP; delay(20000); /* must not touch le for 20ms */ } #endif } int lematch(parent, match, aux) struct device *parent; void *match, *aux; { struct cfdata *cf = match; struct confargs *ca = aux; register struct romaux *ra = &ca->ca_ra; if (strcmp(cf->cf_driver->cd_name, ra->ra_name)) return (0); if (ca->ca_bustype == BUS_SBUS) return (1); return (probeget(ra->ra_vaddr, 2) != -1); } void leattach(parent, self, aux) struct device *parent, *self; void *aux; { struct le_softc *lesc = (struct le_softc *)self; struct am7990_softc *sc = &lesc->sc_am7990; struct confargs *ca = aux; int pri; struct bootpath *bp; u_long laddr; #if defined(SUN4C) || defined(SUN4M) int dmachild = strncmp(parent->dv_xname, "ledma", 5) == 0; #endif /* XXX the following declarations should be elsewhere */ extern void myetheraddr __P((u_char *)); if (ca->ca_ra.ra_nintr != 1) { printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr); return; } pri = ca->ca_ra.ra_intr[0].int_pri; printf(" pri %d", pri); lesc->sc_r1 = (struct lereg1 *)mapiodev(ca->ca_ra.ra_reg, 0, sizeof(struct lereg1), ca->ca_bustype); sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON; laddr = (u_long)dvma_malloc(MEMSIZE, &sc->sc_mem, M_NOWAIT); #if defined (SUN4M) if ((laddr & 0xffffff) >= (laddr & 0xffffff) + MEMSIZE) panic("if_le: Lance buffer crosses 16MB boundary"); #endif sc->sc_addr = laddr & 0xffffff; sc->sc_memsize = MEMSIZE; myetheraddr(sc->sc_arpcom.ac_enaddr); sc->sc_copytodesc = am7990_copytobuf_contig; sc->sc_copyfromdesc = am7990_copyfrombuf_contig; sc->sc_copytobuf = am7990_copytobuf_contig; sc->sc_copyfrombuf = am7990_copyfrombuf_contig; sc->sc_zerobuf = am7990_zerobuf_contig; sc->sc_rdcsr = lerdcsr; sc->sc_wrcsr = lewrcsr; sc->sc_hwinit = lehwinit; am7990_config(sc); bp = ca->ca_ra.ra_bp; switch (ca->ca_bustype) { #if defined(SUN4C) || defined(SUN4M) #define SAME_LANCE(bp, ca) \ ((bp->val[0] == ca->ca_slot && bp->val[1] == ca->ca_offset) || \ (bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit)) case BUS_SBUS: lesc->sc_sd.sd_reset = (void *)am7990_reset; if (dmachild) { lesc->sc_dma = (struct dma_softc *)parent; lesc->sc_dma->sc_le = lesc; lesc->sc_dma->sc_regs->en_bar = laddr & 0xff000000; sbus_establish(&lesc->sc_sd, parent); } else { lesc->sc_dma = NULL; sbus_establish(&lesc->sc_sd, &sc->sc_dev); } if (bp != NULL && strcmp(bp->name, le_cd.cd_name) == 0 && SAME_LANCE(bp, ca)) bp->dev = &sc->sc_dev; break; #endif /* SUN4C || SUN4M */ default: if (bp != NULL && strcmp(bp->name, le_cd.cd_name) == 0 && sc->sc_dev.dv_unit == bp->val[1]) bp->dev = &sc->sc_dev; break; } lesc->sc_ih.ih_fun = am7990_intr; #if defined(SUN4M) /*XXX*/ if (CPU_ISSUN4M) lesc->sc_ih.ih_fun = myleintr; #endif lesc->sc_ih.ih_arg = sc; intr_establish(pri, &lesc->sc_ih); /* now initialize DMA */ if (lesc->sc_dma) { DMA_ENINTR(lesc->sc_dma); } }