/*- * Copyright 1998 Massachusetts Institute of Technology * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby * granted, provided that both the above copyright notice and this * permission notice appear in all copies, that both the above * copyright notice and this permission notice appear in all * supporting documentation, and that the name of M.I.T. not be used * in advertising or publicity pertaining to distribution of the * software without specific, written prior permission. M.I.T. makes * no representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied * warranty. * * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT * SHALL M.I.T. 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 2001 by Thomas Moestl . 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 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 AUTHOR 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. * * from: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09 */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include /* * Device interface */ static int nexus_probe(device_t); static int nexus_attach(device_t); static int nexus_activate_resource(device_t, device_t, int, int, struct resource *); static int nexus_deactivate_resource(device_t, device_t, int, int, struct resource *); static int nexus_config_intr(device_t, int, enum intr_trigger, enum intr_polarity); static int nexus_setup_intr(device_t, device_t, struct resource *, int, driver_filter_t *, driver_intr_t *, void *, void **); static int nexus_teardown_intr(device_t, device_t, struct resource *, void *); static device_method_t nexus_methods[] = { /* Device interface */ DEVMETHOD(device_probe, nexus_probe), DEVMETHOD(device_attach, nexus_attach), DEVMETHOD(device_detach, bus_generic_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), /* Bus interface. Resource management is business of the children... */ DEVMETHOD(bus_add_child, bus_generic_add_child), DEVMETHOD(bus_probe_nomatch, NULL), DEVMETHOD(bus_read_ivar, NULL), DEVMETHOD(bus_write_ivar, NULL), DEVMETHOD(bus_config_intr, nexus_config_intr), DEVMETHOD(bus_setup_intr, nexus_setup_intr), DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), DEVMETHOD(bus_alloc_resource, NULL), DEVMETHOD(bus_activate_resource, nexus_activate_resource), DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), DEVMETHOD(bus_release_resource, NULL), DEVMETHOD_END }; static driver_t nexus_driver = { "nexus", nexus_methods }; static devclass_t nexus_devclass; DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0); static int nexus_probe(device_t dev) { if (!bootverbose) device_quiet(dev); return (BUS_PROBE_DEFAULT); } static int nexus_attach(device_t dev) { bus_generic_probe(dev); bus_generic_attach(dev); return (0); } static int nexus_activate_resource(device_t bus, device_t child, int type, int rid, struct resource *res) { /* Not much to be done yet... */ return (rman_activate_resource(res)); } static int nexus_deactivate_resource(device_t bus, device_t child, int type, int rid, struct resource *res) { /* Not much to be done yet... */ return (rman_deactivate_resource(res)); } static int nexus_config_intr(device_t bus, int irq, enum intr_trigger trig, enum intr_polarity pol) { return (powerpc_config_intr(irq, trig, pol)); } static int nexus_setup_intr(device_t bus, device_t child, struct resource *res, int flags, driver_filter_t *ifilt, driver_intr_t *ihand, void *arg, void **cookiep) { int error; *cookiep = NULL; /* somebody tried to setup an irq that failed to allocate! */ if (res == NULL) return (EINVAL); if ((rman_get_flags(res) & RF_SHAREABLE) == 0) flags |= INTR_EXCL; /* We depend on rman_activate_resource() being idempotent. */ error = rman_activate_resource(res); if (error) return (error); error = powerpc_setup_intr(device_get_nameunit(child), rman_get_start(res), ifilt, ihand, arg, flags, cookiep); return (error); } static int nexus_teardown_intr(device_t bus, device_t child, struct resource *res, void *cookie) { int error; if (res == NULL) return (EINVAL); error = powerpc_teardown_intr(cookie); return (error); }