1 /* $NetBSD: com_cpcbus.c,v 1.11 2008/04/28 20:23:49 martin Exp $ */ 2 3 /* 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp. 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_cpcbus.c,v 1.11 2008/04/28 20:23:49 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/tty.h> 38 #include <sys/systm.h> 39 40 #include <sys/bus.h> 41 42 #include <dev/ic/cpc700reg.h> 43 #include <dev/ic/cpc700var.h> 44 45 #include <dev/ic/comreg.h> 46 #include <dev/ic/comvar.h> 47 48 struct com_cpc_softc { 49 struct com_softc sc_com; 50 void *sc_ih; 51 }; 52 53 static int com_cpc_match(device_t, cfdata_t , void *); 54 static void com_cpc_attach(device_t, device_t, void *); 55 56 CFATTACH_DECL_NEW(com_cpcbus, sizeof(struct com_cpc_softc), 57 com_cpc_match, com_cpc_attach, NULL, NULL); 58 59 int 60 com_cpc_match(device_t parent, cfdata_t cf, void *aux) 61 { 62 struct cpcbus_attach_args *caa = aux; 63 64 return (strcmp(caa->cpca_name, "com") == 0); 65 } 66 67 void 68 com_cpc_attach(device_t parent, device_t self, void *aux) 69 { 70 struct cpcbus_attach_args *caa = aux; 71 struct com_cpc_softc *sc = device_private(self); 72 int iobase = caa->cpca_addr; 73 int irq = caa->cpca_irq; 74 bus_space_handle_t ioh; 75 76 sc->sc_com.sc_dev = self; 77 78 if (!com_is_console(caa->cpca_tag, iobase, &ioh) && 79 bus_space_map(caa->cpca_tag, iobase, COM_NPORTS, 0, &ioh)) { 80 aprint_error_dev(self, "can't map i/o space\n"); 81 return; 82 } 83 COM_INIT_REGS(sc->sc_com.sc_regs, caa->cpca_tag, ioh, iobase); 84 85 sc->sc_com.sc_frequency = CPC_COM_SPEED(caa->cpca_freq); 86 87 com_attach_subr(&sc->sc_com); 88 89 sc->sc_ih = intr_establish(irq, IST_LEVEL, IPL_SERIAL, comintr, 90 &sc->sc_com); 91 } 92