/* $NetBSD: if_cs_ofisa.c,v 1.27 2016/12/09 17:18:35 christos Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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. */ #include __KERNEL_RCSID(0, "$NetBSD: if_cs_ofisa.c,v 1.27 2016/12/09 17:18:35 christos Exp $"); #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include #include #include static int cs_ofisa_match(device_t, cfdata_t, void *); static void cs_ofisa_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(cs_ofisa, sizeof(struct cs_softc_isa), cs_ofisa_match, cs_ofisa_attach, NULL, NULL); int cs_ofisa_match(device_t parent, cfdata_t cf, void *aux) { struct ofisa_attach_args *aa = aux; static const char *const compatible_strings[] = { "CRUS,CS8900", /* XXX CS8920, CS8920M? */ /* XXX PNP names? */ NULL, }; int rv = 0; if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) rv = 5; #ifdef _CS_OFISA_MD_MATCH if (rv == 0) rv = cs_ofisa_md_match(parent, cf, aux); #endif return (rv); } void cs_ofisa_attach(device_t parent, device_t self, void *aux) { struct cs_softc_isa *isc = device_private(self); struct cs_softc *sc = &isc->sc_cs; struct ofisa_attach_args *aa = aux; struct ofisa_reg_desc reg[2]; struct ofisa_intr_desc intr; struct ofisa_dma_desc dma; int i, n, *media, nmedia, defmedia; bus_addr_t io_addr, mem_addr; const char *message = NULL; u_int8_t enaddr[6]; sc->sc_dev = self; isc->sc_ic = aa->ic; sc->sc_iot = aa->iot; sc->sc_memt = aa->memt; /* * We're living on an OFW. We have to ask the OFW what our * registers and interrupts properties look like. * * We expect: * * 1 i/o register region * 0 or 1 memory region * 1 interrupt * 0 or 1 DMA channel */ io_addr = mem_addr = -1; n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2); #ifdef _CS_OFISA_MD_REG_FIXUP n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n); #endif if (n < 1 || n > 2) { aprint_error(": error getting register data\n"); return; } for (i = 0; i < n; i++) { if (reg[i].type == OFISA_REG_TYPE_IO) { if (io_addr != (bus_addr_t) -1) { aprint_error(": multiple I/O regions\n"); return; } if (reg[i].len != CS8900_IOSIZE) { aprint_error(": weird register size (%lu, expected %d)\n", (unsigned long)reg[i].len, CS8900_IOSIZE); return; } io_addr = reg[i].addr; } else { if (mem_addr != (bus_addr_t) -1) { aprint_error(": multiple memory regions\n"); return; } if (reg[i].len != CS8900_MEMSIZE) { aprint_error(": weird register size (%lu, expected %d)\n", (unsigned long)reg[i].len, CS8900_MEMSIZE); return; } mem_addr = reg[i].addr; } } n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); #ifdef _CS_OFISA_MD_INTR_FIXUP n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n); #endif if (n != 1) { aprint_error(": error getting interrupt data\n"); return; } sc->sc_irq = intr.irq; if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) { aprint_error(": invalid IRQ %d\n", sc->sc_irq); return; } isc->sc_drq = -1; n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1); #ifdef _CS_OFISA_MD_DMA_FIXUP n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n); #endif if (n == 1) isc->sc_drq = dma.drq; if (io_addr == (bus_addr_t) -1) { aprint_error(": no I/O space\n"); return; } if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0, &sc->sc_ioh)) { aprint_error(": unable to map register space\n"); return; } if (mem_addr != (bus_addr_t) -1) { if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0, &sc->sc_memh)) { message = "unable to map memory space"; } else { sc->sc_cfgflags |= CFGFLG_MEM_MODE; sc->sc_pktpgaddr = mem_addr; } } /* Dig MAC address out of the firmware. */ if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr, sizeof(enaddr)) < 0) { aprint_error(": unable to get Ethernet address\n"); return; } /* Dig media out of the firmware. */ media = of_network_decode_media(aa->oba.oba_phandle, &nmedia, &defmedia); #ifdef _CS_OFISA_MD_MEDIA_FIXUP media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia, &defmedia); #endif if (media == NULL) { aprint_error(": unable to get media information\n"); return; } ofisa_print_model(self, aa->oba.oba_phandle); if (message != NULL) aprint_normal(": %s\n", message); if (defmedia == -1) { aprint_error_dev(self, "unable to get default media\n"); defmedia = media[0]; /* XXX What to do? */ } sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share, IPL_NET, cs_intr, sc); if (sc->sc_ih == NULL) { aprint_error_dev(self, "unable to establish interrupt\n"); return; } #ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux); #endif sc->sc_dma_chipinit = cs_isa_dma_chipinit; sc->sc_dma_attach = cs_isa_dma_attach; sc->sc_dma_process_rx = cs_process_rx_dma; cs_attach(sc, enaddr, media, nmedia, defmedia); /* This is malloc'd. */ free(media, M_DEVBUF); }