1 /* $OpenBSD: com_isapnp.c,v 1.4 2008/04/27 09:29:40 kettenis Exp $ */ 2 /* 3 * Copyright (c) 1997 - 1999, Jason Downs. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name(s) of the author(s) nor the name OpenBSD 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS 18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, 21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 /*- 30 * Copyright (c) 1993, 1994, 1995, 1996 31 * Charles M. Hannum. All rights reserved. 32 * Copyright (c) 1991 The Regents of the University of California. 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. Neither the name of the University nor the names of its contributors 44 * may be used to endorse or promote products derived from this software 45 * without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 * @(#)com.c 7.5 (Berkeley) 5/16/91 60 */ 61 62 #include <sys/param.h> 63 #include <sys/systm.h> 64 #include <sys/tty.h> 65 #include <sys/device.h> 66 67 #include <machine/intr.h> 68 #include <machine/bus.h> 69 70 #include <dev/ic/comreg.h> 71 #include <dev/ic/comvar.h> 72 73 #include <dev/isa/isavar.h> 74 75 int com_isapnp_probe(struct device *, void *, void *); 76 void com_isapnp_attach(struct device *, struct device *, void *); 77 78 struct cfattach com_isapnp_ca = { 79 sizeof(struct com_softc), com_isapnp_probe, com_isapnp_attach 80 }; 81 82 int 83 com_isapnp_probe(struct device *parent, void *match, void *aux) 84 { 85 struct isa_attach_args *ia = aux; 86 bus_space_tag_t iot; 87 bus_space_handle_t ioh; 88 int iobase; 89 90 iot = ia->ia_iot; 91 iobase = ia->ia_iobase; 92 ioh = ia->ia_ioh; 93 94 #ifdef KGDB 95 if (iobase == com_kgdb_addr) 96 return (1); 97 #endif 98 /* if it's in use as console, it's there. */ 99 if (iobase == comconsaddr && !comconsattached) 100 return (1); 101 102 return comprobe1(iot, ioh); 103 } 104 105 void 106 com_isapnp_attach(struct device *parent, struct device *self, void *aux) 107 { 108 struct com_softc *sc = (void *)self; 109 int iobase; 110 int irq; 111 bus_space_tag_t iot; 112 bus_space_handle_t ioh; 113 struct isa_attach_args *ia = aux; 114 115 /* 116 * XXX should be broken out into functions for isa attach and 117 * XXX for commulti attach, with a helper function that contains 118 * XXX most of the interesting stuff. 119 */ 120 sc->sc_hwflags = 0; 121 sc->sc_swflags = 0; 122 123 /* 124 * We're living on an isa. 125 */ 126 iobase = ia->ia_iobase; 127 iot = ia->ia_iot; 128 /* No console support! */ 129 ioh = ia->ia_ioh; 130 131 sc->sc_iot = iot; 132 sc->sc_ioh = ioh; 133 sc->sc_iobase = iobase; 134 sc->sc_frequency = COM_FREQ; 135 136 com_attach_subr(sc); 137 138 irq = ia->ia_irq; 139 if (irq != IRQUNK) { 140 #ifdef KGDB 141 if (iobase == com_kgdb_addr) { 142 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, 143 IST_EDGE, IPL_HIGH, kgdbintr, sc, 144 sc->sc_dev.dv_xname); 145 } else { 146 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, 147 IST_EDGE, IPL_TTY, comintr, sc, 148 sc->sc_dev.dv_xname); 149 } 150 #else 151 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, 152 IST_EDGE, IPL_TTY, comintr, sc, 153 sc->sc_dev.dv_xname); 154 #endif /* KGDB */ 155 } 156 } 157