/* $NetBSD: intio.c,v 1.16.6.1 2023/02/15 19:35:14 martin Exp $ */ /*- * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. */ /* * Autoconfiguration support for next68k internal i/o space. */ #include __KERNEL_RCSID(0, "$NetBSD: intio.c,v 1.16.6.1 2023/02/15 19:35:14 martin Exp $"); #include #include #include #include #include #include #include int intiomatch(device_t, cfdata_t, void *); void intioattach(device_t, device_t, void *); int intioprint(void *, const char *); int intiosearch(device_t, cfdata_t, const int *, void *); CFATTACH_DECL_NEW(intio, 0, intiomatch, intioattach, NULL, NULL); static bool intio_attached; int intiomatch(device_t parent, cfdata_t match, void *aux) { /* Allow only one instance. */ if (intio_attached) return 0; return 1; } void intioattach(device_t parent, device_t self, void *aux) { printf("\n"); /* Search for and attach children. */ config_search(self, aux, CFARGS(.search = intiosearch)); intio_attached = true; } int intioprint(void *aux, const char *pnp) { struct intio_attach_args *ia = aux; if (ia->ia_addr) aprint_normal(" addr %p", ia->ia_addr); return UNCONF; } int intiosearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux) { struct mainbus_attach_args *mba = aux; struct intio_attach_args ia; do { ia.ia_addr = NULL; ia.ia_bst = NEXT68K_INTIO_BUS_SPACE; ia.ia_dmat = mba->mba_dmat; if (!config_probe(parent, cf, &ia)) break; config_attach(parent, cf, &ia, intioprint, CFARGS_NONE); } while (cf->cf_fstate == FSTATE_STAR); return 0; } int bus_space_map(bus_space_tag_t bst, bus_addr_t addr, bus_size_t size, int flags, bus_space_handle_t *bsh) { if (addr >= INTIOBASE && (addr + size) < INTIOTOP) { *bsh = IIOV(addr); return 0; } return EINVAL; } paddr_t bus_space_mmap(bus_space_tag_t bst, bus_addr_t addr, off_t offset, int prot, int flags) { if (addr >= INTIOBASE && (addr + offset) < INTIOTOP) return m68k_btop(addr + offset); return -1; }