/* $NetBSD: if_le_lebuffer.c,v 1.20 2005/02/04 02:10:47 perry Exp $ */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace * Simulation Facility, NASA Ames Research Center; Paul Kranenburg. * * 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 NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #include __KERNEL_RCSID(0, "$NetBSD: if_le_lebuffer.c,v 1.20 2005/02/04 02:10:47 perry Exp $"); #include "opt_inet.h" #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include #include #include #include /* * LANCE registers. */ #define LEREG1_RDP 0 /* Register Data port */ #define LEREG1_RAP 2 /* Register Address port */ struct le_softc { struct am7990_softc sc_am7990; /* glue to MI code */ struct sbusdev sc_sd; /* sbus device */ bus_space_tag_t sc_bustag; bus_dma_tag_t sc_dmatag; bus_space_handle_t sc_reg; /* LANCE registers */ }; int lematch_lebuffer(struct device *, struct cfdata *, void *); void leattach_lebuffer(struct device *, struct device *, void *); /* * Media types supported. */ static int lemedia[] = { IFM_ETHER|IFM_10_T, }; #define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0])) CFATTACH_DECL(le_lebuffer, sizeof(struct le_softc), lematch_lebuffer, leattach_lebuffer, NULL, NULL); extern struct cfdriver le_cd; #if defined(_KERNEL_OPT) #include "opt_ddb.h" #endif static void lewrcsr(struct lance_softc *, u_int16_t, u_int16_t); static u_int16_t lerdcsr(struct lance_softc *, u_int16_t); static void lewrcsr(sc, port, val) struct lance_softc *sc; u_int16_t port, val; { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t t = lesc->sc_bustag; bus_space_handle_t h = lesc->sc_reg; bus_space_write_2(t, h, LEREG1_RAP, port); bus_space_write_2(t, h, LEREG1_RDP, val); #if defined(SUN4M) /* * We need to flush the Sbus->Mbus write buffers. This can most * easily be accomplished by reading back the register that we * just wrote (thanks to Chris Torek for this solution). */ (void)bus_space_read_2(t, h, LEREG1_RDP); #endif } static u_int16_t lerdcsr(sc, port) struct lance_softc *sc; u_int16_t port; { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t t = lesc->sc_bustag; bus_space_handle_t h = lesc->sc_reg; bus_space_write_2(t, h, LEREG1_RAP, port); return (bus_space_read_2(t, h, LEREG1_RDP)); } int lematch_lebuffer(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct sbus_attach_args *sa = aux; return (strcmp(cf->cf_name, sa->sa_name) == 0); } void leattach_lebuffer(parent, self, aux) struct device *parent, *self; void *aux; { struct sbus_attach_args *sa = aux; struct le_softc *lesc = (struct le_softc *)self; struct lance_softc *sc = &lesc->sc_am7990.lsc; struct lebuf_softc *lebuf = (struct lebuf_softc *)parent; lesc->sc_bustag = sa->sa_bustag; lesc->sc_dmatag = sa->sa_dmatag; if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, sa->sa_size, 0, &lesc->sc_reg)) { printf("%s @ lebuffer: cannot map registers\n", self->dv_xname); return; } sc->sc_mem = lebuf->sc_buffer; sc->sc_memsize = lebuf->sc_bufsiz; sc->sc_addr = 0; /* Lance view is offset by buffer location */ lebuf->attached = 1; /* That old black magic... */ sc->sc_conf3 = prom_getpropint(sa->sa_node, "busmaster-regval", LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON); /* Assume SBus is grandparent */ lesc->sc_sd.sd_reset = (void *)lance_reset; sbus_establish(&lesc->sc_sd, parent); sc->sc_supmedia = lemedia; sc->sc_nsupmedia = NLEMEDIA; sc->sc_defaultmedia = lemedia[0]; prom_getether(sa->sa_node, sc->sc_enaddr); sc->sc_copytodesc = lance_copytobuf_contig; sc->sc_copyfromdesc = lance_copyfrombuf_contig; sc->sc_copytobuf = lance_copytobuf_contig; sc->sc_copyfrombuf = lance_copyfrombuf_contig; sc->sc_zerobuf = lance_zerobuf_contig; sc->sc_rdcsr = lerdcsr; sc->sc_wrcsr = lewrcsr; am7990_config(&lesc->sc_am7990); /* Establish interrupt handler */ if (sa->sa_nintr != 0) (void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri, IPL_NET, am7990_intr, sc); }