1 /* $NetBSD: com_isapnp.c,v 1.27 2007/10/19 12:00:30 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Michael Graff <explorer@flame.org>. 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 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: com_isapnp.c,v 1.27 2007/10/19 12:00:30 ad Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/errno.h> 45 #include <sys/ioctl.h> 46 #include <sys/syslog.h> 47 #include <sys/device.h> 48 #include <sys/proc.h> 49 #include <sys/termios.h> 50 51 #include <sys/bus.h> 52 53 #include <dev/isa/isavar.h> 54 #include <dev/isa/isadmavar.h> 55 56 #include <dev/isapnp/isapnpreg.h> 57 #include <dev/isapnp/isapnpvar.h> 58 #include <dev/isapnp/isapnpdevs.h> 59 60 #include <dev/ic/comvar.h> 61 #include <dev/ic/comreg.h> 62 63 struct com_isapnp_softc { 64 struct com_softc sc_com; /* real "com" softc */ 65 66 /* ISAPnP-specific goo. */ 67 void *sc_ih; /* interrupt handler */ 68 }; 69 70 int com_isapnp_match(struct device *, struct cfdata *, void *); 71 void com_isapnp_attach(struct device *, struct device *, void *); 72 73 CFATTACH_DECL(com_isapnp, sizeof(struct com_isapnp_softc), 74 com_isapnp_match, com_isapnp_attach, NULL, NULL); 75 76 int 77 com_isapnp_match(struct device *parent, struct cfdata *match, 78 void *aux) 79 { 80 int pri, variant; 81 82 pri = isapnp_devmatch(aux, &isapnp_com_devinfo, &variant); 83 if (pri && variant > 0) 84 pri = 0; 85 return (pri); 86 } 87 88 void 89 com_isapnp_attach(struct device *parent, struct device *self, 90 void *aux) 91 { 92 struct com_isapnp_softc *isc = device_private(self); 93 struct com_softc *sc = &isc->sc_com; 94 struct isapnp_attach_args *ipa = aux; 95 96 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 97 printf("%s: error in region allocation\n", 98 sc->sc_dev.dv_xname); 99 return; 100 } 101 102 COM_INIT_REGS(sc->sc_regs, ipa->ipa_iot, ipa->ipa_io[0].h, 103 ipa->ipa_io[0].base); 104 105 /* 106 * if the chip isn't something we recognise skip it. 107 */ 108 if (com_probe_subr(&sc->sc_regs) == 0) 109 return; 110 111 sc->sc_frequency = 115200 * 16; /* is that always right? */ 112 113 com_attach_subr(sc); 114 115 isc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 116 ipa->ipa_irq[0].type, IPL_SERIAL, comintr, sc); 117 } 118