/* $OpenBSD: if_le_lebuffer.c,v 1.6 2006/05/15 21:43:23 miod Exp $ */ /* $NetBSD: if_le_lebuffer.c,v 1.10 2002/03/11 16:00:56 pk 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 "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #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 *, void *, void *); void leattach_lebuffer(struct device *, struct device *, void *); struct cfattach le_lebuffer_ca = { sizeof(struct le_softc), lematch_lebuffer, leattach_lebuffer }; extern struct cfdriver le_cd; struct cfdriver lebuffer_cd = { NULL, "lebuffer", DV_DULL }; void le_lebuffer_wrcsr(struct am7990_softc *, u_int16_t, u_int16_t); u_int16_t le_lebuffer_rdcsr(struct am7990_softc *, u_int16_t); void le_lebuffer_wrcsr(struct am7990_softc *sc, u_int16_t port, u_int16_t val) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, 2, BUS_SPACE_BARRIER_WRITE); bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val); bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, 2, BUS_SPACE_BARRIER_WRITE); #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). */ if (CPU_ISSUN4M) { volatile u_int16_t discard; discard = bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP); } #endif } u_int16_t le_lebuffer_rdcsr(struct am7990_softc *sc, u_int16_t port) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port); bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, 2, BUS_SPACE_BARRIER_WRITE); return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP)); } int lematch_lebuffer(struct device *parent, void *vcf, void *aux) { struct sbus_attach_args *sa = aux; struct cfdata *cf = vcf; return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); } void leattach_lebuffer(struct device *parent, struct device *self, void *aux) { struct sbus_attach_args *sa = aux; struct le_softc *lesc = (struct le_softc *)self; struct am7990_softc *sc = &lesc->sc_am7990; struct lebuf_softc *lebuf = (struct lebuf_softc *)parent; /* XXX the following declarations should be elsewhere */ extern void myetheraddr(u_char *); 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, 0, &lesc->sc_reg)) { printf(": cannot map registers\n"); 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 = 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 *)am7990_reset; sbus_establish(&lesc->sc_sd, parent); 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 = le_lebuffer_rdcsr; sc->sc_wrcsr = le_lebuffer_wrcsr; 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, 0, am7990_intr, sc, self->dv_xname); }