1 /* $NetBSD: com_mainbus.c,v 1.11 2008/04/28 20:23:10 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 "opt_algor_p4032.h" 33 34 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 35 36 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.11 2008/04/28 20:23:10 martin Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/ioctl.h> 41 #include <sys/select.h> 42 #include <sys/tty.h> 43 #include <sys/proc.h> 44 #include <sys/user.h> 45 #include <sys/conf.h> 46 #include <sys/file.h> 47 #include <sys/uio.h> 48 #include <sys/kernel.h> 49 #include <sys/syslog.h> 50 #include <sys/types.h> 51 #include <sys/device.h> 52 53 #include <machine/autoconf.h> 54 #include <machine/intr.h> 55 #include <machine/bus.h> 56 57 #include <dev/ic/comreg.h> 58 #include <dev/ic/comvar.h> 59 60 struct com_mainbus_softc { 61 struct com_softc sc_com; /* real "com" softc */ 62 63 /* mainbus-specific goo. */ 64 void *sc_ih; /* interrupt handler */ 65 }; 66 67 int com_mainbus_match(device_t, cfdata_t , void *); 68 void com_mainbus_attach(device_t, device_t, void *); 69 void com_mainbus_cleanup(void *); 70 71 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc), 72 com_mainbus_match, com_mainbus_attach, NULL, NULL); 73 74 int 75 com_mainbus_match(device_t parent, cfdata_t match, void *aux) 76 { 77 struct mainbus_attach_args *ma = aux; 78 79 /* Always present. */ 80 if (strcmp(ma->ma_name, match->cf_name) == 0) 81 return (1); 82 83 return (0); 84 } 85 86 void 87 com_mainbus_attach(device_t parent, device_t self, void *aux) 88 { 89 struct com_mainbus_softc *msc = device_private(self); 90 struct com_softc *sc = &msc->sc_com; 91 struct mainbus_attach_args *ma = aux; 92 bus_space_handle_t ioh; 93 94 sc->sc_dev = self; 95 if (com_is_console(ma->ma_st, ma->ma_addr, &ioh) == 0 && 96 bus_space_map(ma->ma_st, ma->ma_addr, COM_NPORTS, 0, &ioh) != 0) { 97 aprint_error(": can't map i/o space\n"); 98 return; 99 } 100 COM_INIT_REGS(sc->sc_regs, ma->ma_st, ioh, ma->ma_addr); 101 sc->sc_frequency = COM_FREQ; 102 103 com_attach_subr(sc); 104 105 msc->sc_ih = (*algor_intr_establish)(ma->ma_irq, comintr, sc); 106 if (msc->sc_ih == NULL) { 107 aprint_error_dev(self, "unable to establish interrupt\n"); 108 return; 109 } 110 111 if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) { 112 aprint_error_dev(self, "could not establish shutdown hook"); 113 } 114 115 } 116