1/* $NetBSD: com_multi.c,v 1.28 2009/05/12 08:44:19 cegger 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/*- 33 * Copyright (c) 1991 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)com.c 7.5 (Berkeley) 5/16/91 61 */ 62 63/* 64 * COM driver, uses National Semiconductor NS16450/NS16550AF UART 65 */ 66 67#include <sys/cdefs.h> 68__KERNEL_RCSID(0, "$NetBSD: com_multi.c,v 1.28 2009/05/12 08:44:19 cegger Exp $"); 69 70#include <sys/param.h> 71#include <sys/systm.h> 72#include <sys/ioctl.h> 73#include <sys/select.h> 74#include <sys/tty.h> 75#include <sys/proc.h> 76#include <sys/conf.h> 77#include <sys/file.h> 78#include <sys/uio.h> 79#include <sys/kernel.h> 80#include <sys/syslog.h> 81#include <sys/device.h> 82 83#include <sys/intr.h> 84#include <sys/bus.h> 85 86#include <dev/ic/comreg.h> 87#include <dev/ic/comvar.h> 88 89#include <dev/isa/isavar.h> 90#include <dev/isa/com_multi.h> 91 92#include "locators.h" 93 94int com_multi_probe(device_t, cfdata_t , void *); 95void com_multi_attach(device_t, device_t, void *); 96 97CFATTACH_DECL_NEW(com_multi, sizeof(struct com_softc), 98 com_multi_probe, com_multi_attach, NULL, NULL); 99 100int 101com_multi_probe(device_t parent, cfdata_t match, void *aux) 102{ 103 int iobase; 104 cfdata_t cf = match; 105 struct commulti_attach_args *ca = aux; 106 107 if (cf->cf_loc[COMMULTICF_SLAVE] != COMMULTICF_SLAVE_DEFAULT && 108 cf->cf_loc[COMMULTICF_SLAVE] != ca->ca_slave) 109 return (0); 110 111 iobase = ca->ca_iobase; 112 113 /* if it's in use as console, it's there. */ 114 if (com_is_console(ca->ca_iot, iobase, 0)) 115 return 1; 116 117 return comprobe1(ca->ca_iot, ca->ca_ioh); 118} 119 120void 121com_multi_attach(device_t parent, device_t self, void *aux) 122{ 123 struct com_softc *sc = device_private(self); 124 struct commulti_attach_args *ca = aux; 125 126 sc->sc_dev = self; 127 128 /* 129 * We're living on a commulti. 130 */ 131 COM_INIT_REGS(sc->sc_regs, ca->ca_iot, ca->ca_ioh, ca->ca_iobase); 132 sc->sc_frequency = 115200 * 16; 133 134 if (ca->ca_noien) 135 sc->sc_hwflags |= COM_HW_NOIEN; 136 137 com_attach_subr(sc); 138} 139