1 /* $NetBSD: com_opb.c,v 1.11 2003/07/15 02:54:44 lukem Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: com_opb.c,v 1.11 2003/07/15 02:54:44 lukem Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/device.h> 43 #include <sys/tty.h> 44 #include <sys/systm.h> 45 46 #include <lib/libkern/libkern.h> 47 48 #include <machine/cpu.h> 49 50 #include <powerpc/ibm4xx/dev/opbvar.h> 51 52 #include <dev/ic/comreg.h> 53 #include <dev/ic/comvar.h> 54 55 struct com_opb_softc { 56 struct com_softc sc_com; 57 void *sc_ih; 58 }; 59 60 static int com_opb_probe(struct device *, struct cfdata *, void *); 61 static void com_opb_attach(struct device *, struct device *, void *); 62 63 CFATTACH_DECL(com_opb, sizeof(struct com_opb_softc), 64 com_opb_probe, com_opb_attach, NULL, NULL); 65 66 int 67 com_opb_probe(struct device *parent, struct cfdata *cf, void *aux) 68 { 69 struct opb_attach_args *oaa = aux; 70 71 /* match only com devices */ 72 if (strcmp(oaa->opb_name, cf->cf_name) != 0) 73 return 0; 74 75 return (1); 76 } 77 78 void 79 com_opb_attach(struct device *parent, struct device *self, void *aux) 80 { 81 struct com_opb_softc *msc = (void *)self; 82 struct com_softc *sc = &msc->sc_com; 83 struct opb_attach_args *oaa = aux; 84 85 sc->sc_iot = oaa->opb_bt; 86 sc->sc_iobase = oaa->opb_addr; 87 88 /* XXX console check */ 89 90 bus_space_map(sc->sc_iot, oaa->opb_addr, COM_NPORTS, 0, 91 &sc->sc_ioh); 92 93 if (prop_get(dev_propdb, &sc->sc_dev, "frequency", 94 &sc->sc_frequency, sizeof(sc->sc_frequency), NULL) == -1) { 95 printf(": unable to get frequency property\n"); 96 return; 97 } 98 99 com_attach_subr(sc); 100 101 intr_establish(oaa->opb_irq, IST_LEVEL, IPL_SERIAL, comintr, sc); 102 } 103