com_obio.c revision 1.1
1/* $NetBSD: com_obio.c,v 1.1 2003/03/16 07:07:19 matt Exp $ */ 2 3/*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/*- 40 * Copyright (c) 1991 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)com.c 7.5 (Berkeley) 5/16/91 72 */ 73 74#include <sys/param.h> 75#include <sys/systm.h> 76#include <sys/ioctl.h> 77#include <sys/select.h> 78#include <sys/tty.h> 79#include <sys/proc.h> 80#include <sys/user.h> 81#include <sys/conf.h> 82#include <sys/file.h> 83#include <sys/uio.h> 84#include <sys/kernel.h> 85#include <sys/syslog.h> 86#include <sys/types.h> 87#include <sys/device.h> 88#include <sys/termios.h> 89 90#include <machine/bus.h> 91#include <machine/intr.h> 92 93#include <dev/ic/comreg.h> 94#include <dev/ic/comvar.h> 95 96#include <dev/marvell/gtvar.h> 97 98struct com_obio_softc { 99 struct com_softc osc_com; /* real "com" softc */ 100 101 /* OBIO-specific goo. */ 102}; 103 104static int com_obio_match (struct device *, struct cfdata *, void *); 105static void com_obio_attach (struct device *, struct device *, void *); 106 107CFATTACH_DECL(com_obio, sizeof(struct com_obio_softc), 108 com_obio_match, com_obio_attach, NULL, NULL); 109 110int 111com_obio_match(struct device *parent, struct cfdata *cf, void *aux) 112{ 113 struct obio_attach_args *oa = aux; 114 bus_space_handle_t ioh; 115 int rv = 0; 116 117 if (oa->oa_offset == OBIO_UNK_OFFSET || 118 oa->oa_size == OBIO_UNK_SIZE) 119 return (0); 120 121 if (com_is_console(oa->oa_memt, oa->oa_offset, NULL)) { 122 rv = 1; 123 } else { 124 if (bus_space_map(oa->oa_memt, oa->oa_offset, 125 oa->oa_size, 0, &ioh)) 126 return (0); 127 rv = comprobe1(oa->oa_memt, ioh); 128 bus_space_unmap(oa->oa_memt, ioh, oa->oa_size); 129 } 130 131 return (rv); 132} 133 134void 135com_obio_attach(struct device *parent, struct device *self, void *aux) 136{ 137 struct com_obio_softc *osc = (void *)self; 138 struct com_softc *sc = &osc->osc_com; 139 struct obio_attach_args *oa = aux; 140 141 /* 142 * We're living on an obio that looks like an sbus slot. 143 */ 144 sc->sc_iot = oa->oa_memt; 145 sc->sc_iobase = oa->oa_offset; 146 sc->sc_frequency = COM_FREQ*2; 147 148 if (!com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh) && 149 bus_space_map(sc->sc_iot, sc->sc_iobase, oa->oa_size, 150 0, &sc->sc_ioh) != 0) { 151 printf(": can't map registers\n"); 152 return; 153 } 154 155 com_attach_subr(sc); 156 157 if (oa->oa_irq >= 0) { 158 intr_establish(oa->oa_irq, IST_EDGE, IPL_SERIAL, comintr, sc); 159 printf("%s: interrupting at %s\n", 160 sc->sc_dev.dv_xname, intr_string(oa->oa_irq)); 161 } 162} 163