1/* $OpenBSD: com_isa.c,v 1.10 2022/04/06 18:59:28 naddy 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/bus.h> 68 69#include <dev/ic/comreg.h> 70#include <dev/ic/comvar.h> 71 72#include <dev/isa/isavar.h> 73 74int com_isa_probe(struct device *, void *, void *); 75void com_isa_attach(struct device *, struct device *, void *); 76 77const struct cfattach com_isa_ca = { 78 sizeof(struct com_softc), com_isa_probe, com_isa_attach, NULL, 79 com_activate 80}; 81 82int 83com_isa_probe(struct device *parent, void *match, void *aux) 84{ 85 struct isa_attach_args *ia = aux; 86 bus_space_handle_t ioh; 87 bus_space_tag_t iot; 88 int iobase; 89 int rv; 90 91 iot = ia->ia_iot; 92 iobase = ia->ia_iobase; 93 94 if (iobase == comconsaddr && !comconsattached) 95 goto out; 96 97 if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) 98 return (0); 99 100 rv = comprobe1(iot, ioh); 101 102 bus_space_unmap(iot, ioh, COM_NPORTS); 103 104 if (rv == 0) 105 return (0); 106 107out: 108 ia->ia_iosize = COM_NPORTS; 109 ia->ia_msize = 0; 110 return (1); 111} 112 113void 114com_isa_attach(struct device *parent, struct device *self, void *aux) 115{ 116 struct com_softc *sc = (struct com_softc *)self; 117 struct isa_attach_args *ia = aux; 118 bus_space_handle_t ioh; 119 bus_space_tag_t iot; 120 int iobase, irq; 121 122 sc->sc_hwflags = 0; 123 sc->sc_swflags = 0; 124 125 iobase = ia->ia_iobase; 126 iot = ia->ia_iot; 127 128 if (iobase != comconsaddr) { 129 if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) 130 panic("com_isa_attach: mapping failed"); 131 } else { 132 ioh = comconsioh; 133 } 134 135 sc->sc_iot = iot; 136 sc->sc_ioh = ioh; 137 sc->sc_iobase = iobase; 138 sc->sc_frequency = COM_FREQ; 139 140 com_attach_subr(sc); 141 142 irq = ia->ia_irq; 143 if (irq != IRQUNK) { 144 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, 145 IST_EDGE, IPL_TTY, comintr, sc, 146 sc->sc_dev.dv_xname); 147 } 148} 149