/* $NetBSD: if_le.c,v 1.1 1995/12/20 00:52:16 cgd Exp $ */ /*- * 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 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 */ #ifdef alpha #define CAN_HAVE_IOASIC 1 #define CAN_HAVE_TC 1 #endif #ifdef pmax /* XXX PMAX BASEBOARD OPTIONS? */ #define CAN_HAVE_IOASIC 1 #define CAN_HAVE_TC 1 #endif #include "bpfilter.h" /* XXX PMAX BASEBOARD OPTIONS? */ #ifdef CAN_HAVE_TC #include "tc.h" #endif #ifdef CAN_HAVE_IOASIC #include "ioasic.h" #endif #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include /* XXX PMAX BASEBOARD OPTIONS? */ #if CAN_HAVE_TC && (NTC > 0) #include #endif #if CAN_HAVE_IOASIC && (NIOASIC > 0) #include #endif #include #include #define LE_NEED_BUF_CONTIG #define LE_NEED_BUF_GAP2 #define LE_NEED_BUF_GAP16 #include /* access LANCE registers */ void lewritereg(); #define LERDWR(cntl, src, dst) { (dst) = (src); tc_mb(); } #define LEWREG(src, dst) lewritereg(&(dst), (src)) #define LE_OFFSET_RAM 0x0 #define LE_OFFSET_LANCE 0x100000 #define LE_OFFSET_ROM 0x1c0000 extern caddr_t le_iomem; #define LE_SOFTC(unit) lecd.cd_devs[unit] #define LE_DELAY(x) DELAY(x) int lematch __P((struct device *, void *, void *)); void leattach __P((struct device *, struct device *, void *)); int leintr __P((void *)); struct cfdriver lecd = { NULL, "le", lematch, leattach, DV_IFNET, sizeof (struct le_softc) }; integrate void lewrcsr(sc, port, val) struct le_softc *sc; u_int16_t port, val; { struct lereg1 *ler1 = sc->sc_r1; LEWREG(port, ler1->ler1_rap); LERDWR(port, val, ler1->ler1_rdp); } integrate u_int16_t lerdcsr(sc, port) struct le_softc *sc; u_int16_t port; { struct lereg1 *ler1 = sc->sc_r1; u_int16_t val; LEWREG(port, ler1->ler1_rap); LERDWR(0, ler1->ler1_rdp, val); return (val); } int lematch(parent, match, aux) struct device *parent; void *match, *aux; { /* XXX VARIOUS PMAX BASEBOARD CASES? */ #if CAN_HAVE_IOASIC && (NIOASIC > 0) if (parent->dv_cfdata->cf_driver == &ioasiccd) { struct ioasicdev_attach_args *d = aux; if (!ioasic_submatch(match, aux)) return (0); if (strncmp("lance ", d->iada_modname, TC_ROM_LLEN)) return (0); } else #endif /* IOASIC */ #if CAN_HAVE_TC && (NTC > 0) if (parent->dv_cfdata->cf_driver == &tccd) { struct tcdev_attach_args *d = aux; if (!tc_submatch(match, aux)) return (0); if (strncmp("PMAD-AA ", d->tcda_modname, TC_ROM_LLEN) && strncmp("PMAD-BA ", d->tcda_modname, TC_ROM_LLEN)) return (0); } else #endif /* TC */ return (0); return (1); } void leattach(parent, self, aux) struct device *parent, *self; void *aux; { register struct le_softc *sc = (void *)self; void (*ie_fn) __P((struct device *, void *, tc_intrlevel_t, int (*)(void *), void *)); u_char *cp; /* pointer to MAC address */ int i; /* XXX VARIOUS PMAX BASEBOARD CASES? */ #if CAN_HAVE_IOASIC && (NIOASIC > 0) if (parent->dv_cfdata->cf_driver == &ioasiccd) { struct ioasicdev_attach_args *d = aux; /* It's on the system IOCTL ASIC */ sc->sc_r1 = (struct lereg1 *) TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->iada_addr)); sc->sc_mem = (void *)TC_PHYS_TO_UNCACHED(le_iomem); cp = ioasic_lance_ether_address(); sc->sc_copytodesc = copytobuf_gap2; sc->sc_copyfromdesc = copyfrombuf_gap2; sc->sc_copytobuf = copytobuf_gap16; sc->sc_copyfrombuf = copyfrombuf_gap16; sc->sc_zerobuf = zerobuf_gap16; ioasic_lance_dma_setup(le_iomem); /* XXX more thought */ ie_fn = ioasic_intr_establish; } else #endif /* IOASIC */ #if CAN_HAVE_TC && (NTC > 0) /* XXX KN02 BASEBOARD CASE? */ if (parent->dv_cfdata->cf_driver == &tccd) { struct tcdev_attach_args *d = aux; /* * It's on the turbochannel proper. */ sc->sc_r1 = (struct lereg1 *)(d->tcda_addr + LE_OFFSET_LANCE); sc->sc_mem = (void *)(d->tcda_addr + LE_OFFSET_RAM); cp = (u_char *)(d->tcda_addr + LE_OFFSET_ROM + 2); sc->sc_copytodesc = copytobuf_contig; sc->sc_copyfromdesc = copyfrombuf_contig; sc->sc_copytobuf = copytobuf_contig; sc->sc_copyfrombuf = copyfrombuf_contig; sc->sc_zerobuf = zerobuf_contig; /* XXX DMA setup fn? */ ie_fn = tc_intr_establish; } else #endif /* TC */ panic("leattach: can't be here"); sc->sc_conf3 = 0; sc->sc_addr = 0; sc->sc_memsize = 65536; /* * Get the ethernet address out of rom */ for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) { sc->sc_arpcom.ac_enaddr[i] = *cp; cp += 4; } sc->sc_arpcom.ac_if.if_name = lecd.cd_name; leconfig(sc); (*ie_fn)(parent, sc->sc_cookie, TC_IPL_NET, leintr, sc); } /* * Write a lance register port, reading it back to ensure success. This seems * to be necessary during initialization, since the chip appears to be a bit * pokey sometimes. */ void lewritereg(regptr, val) register volatile u_short *regptr; register u_short val; { register int i = 0; while (*regptr != val) { *regptr = val; tc_mb(); if (++i > 10000) { printf("le: Reg did not settle (to x%x): x%x\n", val, *regptr); return; } DELAY(100); } } /* * Routines for accessing the transmit and receive buffers are provided * by am7990.c, because of the LE_NEED_BUF_* macros defined above. * Unfortunately, CPU addressing of these buffers is done in one of * 3 ways: * - contiguous (for the 3max and turbochannel option card) * - gap2, which means shorts (2 bytes) interspersed with short (2 byte) * spaces (for the pmax) * - gap16, which means 16bytes interspersed with 16byte spaces * for buffers which must begin on a 32byte boundary (for 3min, maxine, * and alpha) * The buffer offset is the logical byte offset, assuming contiguous storage. */ #include