/* $OpenBSD: dma_sbus.c,v 1.16 2008/06/26 05:42:18 ray Exp $ */ /* $NetBSD: dma_sbus.c,v 1.5 2000/07/09 20:57:42 pk Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by 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. * * 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. */ /* * Copyright (c) 1994 Peter Galbavy. 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. * * 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. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct dma_softc { struct lsi64854_softc sc_lsi64854; /* base device */ }; int dmamatch_sbus(struct device *, void *, void *); void dmaattach_sbus(struct device *, struct device *, void *); int dmaprint_sbus(void *, const char *); void *dmabus_intr_establish( bus_space_tag_t, bus_space_tag_t, int, /*bus interrupt priority*/ int, /*`device class' level*/ int, /*flags*/ int (*)(void *), /*handler*/ void *, /*handler arg*/ const char *); /*what*/ static bus_space_tag_t dma_alloc_bustag(struct dma_softc *sc); struct cfattach dma_sbus_ca = { sizeof(struct dma_softc), dmamatch_sbus, dmaattach_sbus }; struct cfattach ledma_ca = { sizeof(struct dma_softc), dmamatch_sbus, dmaattach_sbus }; struct cfdriver ledma_cd = { NULL, "ledma", DV_DULL }; struct cfdriver dma_cd = { NULL, "dma", DV_DULL }; int dmaprint_sbus(void *aux, const char *busname) { struct sbus_attach_args *sa = aux; bus_space_tag_t t = sa->sa_bustag; struct dma_softc *sc = t->cookie; sa->sa_bustag = sc->sc_lsi64854.sc_bustag; /* XXX */ sbus_print(aux, busname); /* XXX */ sa->sa_bustag = t; /* XXX */ return (UNCONF); } int dmamatch_sbus(struct device *parent, void *vcf, void *aux) { struct cfdata *cf = vcf; struct sbus_attach_args *sa = aux; return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 || strcmp("espdma", sa->sa_name) == 0); } void dmaattach_sbus(parent, self, aux) struct device *parent, *self; void *aux; { struct sbus_attach_args *sa = aux; struct dma_softc *dsc = (void *)self; struct lsi64854_softc *sc = &dsc->sc_lsi64854; bus_space_handle_t bh; bus_space_tag_t sbt; int sbusburst, burst; int node; node = sa->sa_node; sc->sc_bustag = sa->sa_bustag; sc->sc_dmatag = sa->sa_dmatag; /* Map registers */ if (sa->sa_npromvaddrs != 0) { if (sbus_bus_map(sa->sa_bustag, 0, sa->sa_promvaddrs[0], sa->sa_size, /* ???? */ BUS_SPACE_MAP_PROMADDRESS, 0, &bh) != 0) { printf("%s: cannot map registers\n", self->dv_xname); return; } } else if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, sa->sa_size, 0, 0, &bh) != 0) { printf("%s: cannot map registers\n", self->dv_xname); return; } sc->sc_regs = bh; /* * Get transfer burst size from PROM and plug it into the * controller registers. This is needed on the Sun4m; do * others need it too? */ sbusburst = ((struct sbus_softc *)parent)->sc_burst; if (sbusburst == 0) sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ burst = getpropint(node,"burst-sizes", -1); if (burst == -1) /* take SBus burst sizes */ burst = sbusburst; /* Clamp at parent's burst sizes */ burst &= sbusburst; sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : (burst & SBUS_BURST_16) ? 16 : 0; if (sc->sc_dev.dv_cfdata->cf_attach == &ledma_ca) { char *cabletype; u_int32_t csr; /* * Check to see which cable type is currently active and * set the appropriate bit in the ledma csr so that it * gets used. If we didn't netboot, the PROM won't have * the "cable-selection" property; default to TP and then * the user can change it via a "media" option to ifconfig. */ cabletype = getpropstring(node, "cable-selection"); csr = L64854_GCSR(sc); if (strcmp(cabletype, "tpe") == 0) { csr |= E_TP_AUI; } else if (strcmp(cabletype, "aui") == 0) { csr &= ~E_TP_AUI; } else { /* assume TP if nothing there */ csr |= E_TP_AUI; } L64854_SCSR(sc, csr); delay(20000); /* manual says we need a 20ms delay */ sc->sc_channel = L64854_CHANNEL_ENET; } else { sc->sc_channel = L64854_CHANNEL_SCSI; } sbt = dma_alloc_bustag(dsc); if (lsi64854_attach(sc) != 0) return; /* Attach children */ for (node = firstchild(sa->sa_node); node; node = nextsibling(node)) { struct sbus_attach_args sa; sbus_setup_attach_args((struct sbus_softc *)parent, sbt, sc->sc_dmatag, node, &sa); (void) config_found(&sc->sc_dev, (void *)&sa, dmaprint_sbus); sbus_destroy_attach_args(&sa); } } void * dmabus_intr_establish( bus_space_tag_t t, bus_space_tag_t t0, int pri, int level, int flags, int (*handler)(void *), void *arg, const char *what) { struct lsi64854_softc *sc = t->cookie; /* XXX - for now only le; do esp later */ if (sc->sc_channel == L64854_CHANNEL_ENET) { sc->sc_intrchain = handler; sc->sc_intrchainarg = arg; handler = lsi64854_enet_intr; arg = sc; } for (t = t->parent; t; t = t->parent) { if (t->sparc_intr_establish != NULL) return ((*t->sparc_intr_establish) (t, t0, pri, level, flags, handler, arg, what)); } panic("dmabus_intr_establish: no handler found"); return (NULL); } bus_space_tag_t dma_alloc_bustag(struct dma_softc *sc) { struct sparc_bus_space_tag *sbt; sbt = malloc(sizeof(*sbt), M_DEVBUF, M_NOWAIT | M_ZERO); if (sbt == NULL) return (NULL); sbt->cookie = sc; sbt->parent = sc->sc_lsi64854.sc_bustag; sbt->asi = sbt->parent->asi; sbt->sasi = sbt->parent->sasi; sbt->sparc_intr_establish = dmabus_intr_establish; return (sbt); }