1 /* $NetBSD: com_isapnp.c,v 1.29 2008/04/28 20:23:52 martin 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 * 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 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: com_isapnp.c,v 1.29 2008/04/28 20:23:52 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/errno.h> 38 #include <sys/ioctl.h> 39 #include <sys/syslog.h> 40 #include <sys/device.h> 41 #include <sys/proc.h> 42 #include <sys/termios.h> 43 44 #include <sys/bus.h> 45 46 #include <dev/isa/isavar.h> 47 #include <dev/isa/isadmavar.h> 48 49 #include <dev/isapnp/isapnpreg.h> 50 #include <dev/isapnp/isapnpvar.h> 51 #include <dev/isapnp/isapnpdevs.h> 52 53 #include <dev/ic/comvar.h> 54 #include <dev/ic/comreg.h> 55 56 struct com_isapnp_softc { 57 struct com_softc sc_com; /* real "com" softc */ 58 59 /* ISAPnP-specific goo. */ 60 void *sc_ih; /* interrupt handler */ 61 }; 62 63 int com_isapnp_match(device_t, cfdata_t , void *); 64 void com_isapnp_attach(device_t, device_t, void *); 65 66 CFATTACH_DECL_NEW(com_isapnp, sizeof(struct com_isapnp_softc), 67 com_isapnp_match, com_isapnp_attach, NULL, NULL); 68 69 int 70 com_isapnp_match(device_t parent, cfdata_t match, void *aux) 71 { 72 int pri, variant; 73 74 pri = isapnp_devmatch(aux, &isapnp_com_devinfo, &variant); 75 if (pri && variant > 0) 76 pri = 0; 77 return (pri); 78 } 79 80 void 81 com_isapnp_attach(device_t parent, device_t self, void *aux) 82 { 83 struct com_isapnp_softc *isc = device_private(self); 84 struct com_softc *sc = &isc->sc_com; 85 struct isapnp_attach_args *ipa = aux; 86 87 sc->sc_dev = self; 88 89 if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { 90 aprint_error_dev(self, "error in region allocation\n"); 91 return; 92 } 93 94 COM_INIT_REGS(sc->sc_regs, ipa->ipa_iot, ipa->ipa_io[0].h, 95 ipa->ipa_io[0].base); 96 97 /* 98 * if the chip isn't something we recognise skip it. 99 */ 100 if (com_probe_subr(&sc->sc_regs) == 0) 101 return; 102 103 sc->sc_frequency = 115200 * 16; /* is that always right? */ 104 105 com_attach_subr(sc); 106 107 isc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, 108 ipa->ipa_irq[0].type, IPL_SERIAL, comintr, sc); 109 } 110