com_multi.c revision 1.25.16.2
1 /* $NetBSD: com_multi.c,v 1.25.16.2 2008/06/02 13:23:30 mjf 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 1.25.16.2 2008/06/02 13:23:30 mjf 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/user.h> 77 #include <sys/conf.h> 78 #include <sys/file.h> 79 #include <sys/uio.h> 80 #include <sys/kernel.h> 81 #include <sys/syslog.h> 82 #include <sys/device.h> 83 84 #include <sys/intr.h> 85 #include <sys/bus.h> 86 87 #include <dev/ic/comreg.h> 88 #include <dev/ic/comvar.h> 89 90 #include <dev/isa/isavar.h> 91 #include <dev/isa/com_multi.h> 92 93 #include "locators.h" 94 95 int com_multi_probe(device_t, cfdata_t , void *); 96 void com_multi_attach(device_t, device_t, void *); 97 98 CFATTACH_DECL_NEW(com_multi, sizeof(struct com_softc), 99 com_multi_probe, com_multi_attach, NULL, NULL); 100 101 int 102 com_multi_probe(device_t parent, cfdata_t match, void *aux) 103 { 104 int iobase; 105 struct cfdata *cf = match; 106 struct commulti_attach_args *ca = aux; 107 108 if (cf->cf_loc[COMMULTICF_SLAVE] != COMMULTICF_SLAVE_DEFAULT && 109 cf->cf_loc[COMMULTICF_SLAVE] != ca->ca_slave) 110 return (0); 111 112 iobase = ca->ca_iobase; 113 114 /* if it's in use as console, it's there. */ 115 if (com_is_console(ca->ca_iot, iobase, 0)) 116 return 1; 117 118 return comprobe1(ca->ca_iot, ca->ca_ioh); 119 } 120 121 void 122 com_multi_attach(device_t parent, device_t self, void *aux) 123 { 124 struct com_softc *sc = device_private(self); 125 struct commulti_attach_args *ca = aux; 126 127 sc->sc_dev = self; 128 129 /* 130 * We're living on a commulti. 131 */ 132 COM_INIT_REGS(sc->sc_regs, ca->ca_iot, ca->ca_ioh, ca->ca_iobase); 133 sc->sc_frequency = 115200 * 16; 134 135 if (ca->ca_noien) 136 sc->sc_hwflags |= COM_HW_NOIEN; 137 138 com_attach_subr(sc); 139 } 140
Indexes created Tue Oct 07 21:09:53 GMT 2025