1 /*- 2 * Copyright 2003 by Peter Grehan. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 29 /* 30 * The psim iobus attachment for the OpenPIC interrupt controller. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/module.h> 39 #include <sys/bus.h> 40 #include <sys/conf.h> 41 #include <sys/kernel.h> 42 43 #include <dev/ofw/openfirm.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr_machdep.h> 47 #include <machine/md_var.h> 48 #include <machine/pio.h> 49 #include <machine/resource.h> 50 51 #include <vm/vm.h> 52 #include <vm/pmap.h> 53 54 #include <sys/rman.h> 55 56 #include <machine/openpicvar.h> 57 #include <powerpc/psim/iobusvar.h> 58 59 #include "pic_if.h" 60 61 /* 62 * PSIM IOBus interface 63 */ 64 static int openpic_iobus_probe(device_t); 65 66 static device_method_t openpic_iobus_methods[] = { 67 /* Device interface */ 68 DEVMETHOD(device_probe, openpic_iobus_probe), 69 DEVMETHOD(device_attach, openpic_attach), 70 71 /* PIC interface */ 72 DEVMETHOD(pic_config, openpic_config), 73 DEVMETHOD(pic_dispatch, openpic_dispatch), 74 DEVMETHOD(pic_enable, openpic_enable), 75 DEVMETHOD(pic_eoi, openpic_eoi), 76 DEVMETHOD(pic_ipi, openpic_ipi), 77 DEVMETHOD(pic_mask, openpic_mask), 78 DEVMETHOD(pic_unmask, openpic_unmask), 79 80 { 0, 0 } 81 }; 82 83 static driver_t openpic_iobus_driver = { 84 "openpic", 85 openpic_iobus_methods, 86 sizeof(struct openpic_softc) 87 }; 88 89 DRIVER_MODULE(openpic, iobus, openpic_iobus_driver, openpic_devclass, 0, 0); 90 91 static int 92 openpic_iobus_probe(device_t dev) 93 { 94 struct openpic_softc *sc; 95 char *name; 96 97 name = iobus_get_name(dev); 98 if (strcmp(name, "interrupt-controller") != 0) 99 return (ENXIO); 100 101 /* 102 * The description was already printed out in the nexus 103 * probe, so don't do it again here 104 */ 105 device_set_desc(dev, OPENPIC_DEVSTR); 106 107 sc = device_get_softc(dev); 108 sc->sc_psim = 1; 109 110 return (0); 111 } 112