1 /* $NetBSD: attimer_isa.c,v 1.7 2007/10/19 12:00:15 ad Exp $ */ 2 3 /* 4 * Copyright (c) 2005 The NetBSD Foundation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of The NetBSD Foundation nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 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) 1996 Carnegie-Mellon University. 34 * All rights reserved. 35 * 36 * Author: Chris G. Demetriou 37 * 38 * Permission to use, copy, modify and distribute this software and 39 * its documentation is hereby granted, provided that both the copyright 40 * notice and this permission notice appear in all copies of the 41 * software, derivative works or modified versions, and any portions 42 * thereof, and that both notices appear in supporting documentation. 43 * 44 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 45 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 46 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 47 * 48 * Carnegie Mellon requests users of this software to return to 49 * 50 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 51 * School of Computer Science 52 * Carnegie Mellon University 53 * Pittsburgh PA 15213-3890 54 * 55 * any improvements or extensions that they make and grant Carnegie the 56 * rights to redistribute these changes. 57 */ 58 59 /* 60 * ISA attachment for attimer(4) 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.7 2007/10/19 12:00:15 ad Exp $"); 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/errno.h> 69 #include <sys/ioctl.h> 70 #include <sys/device.h> 71 #include <sys/proc.h> 72 73 #include <sys/bus.h> 74 75 #include <dev/ic/attimervar.h> 76 77 #include <dev/isa/isareg.h> 78 #include <dev/isa/isavar.h> 79 80 static int attimer_isa_match(struct device *, struct cfdata *, void *); 81 static void attimer_isa_attach(struct device *, struct device *, void *); 82 83 CFATTACH_DECL(attimer_isa, sizeof(struct attimer_softc), 84 attimer_isa_match, attimer_isa_attach, NULL, NULL); 85 86 static int 87 attimer_isa_match(struct device *parent, struct cfdata *match, 88 void *aux) 89 { 90 struct isa_attach_args *ia = aux; 91 bus_space_handle_t att_ioh; 92 93 if (ISA_DIRECT_CONFIG(ia)) 94 return (0); 95 96 /* If values are hardwired to something that they can't be, punt. */ 97 if (ia->ia_nio < 1 || 98 (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT && 99 ia->ia_io[0].ir_addr != IO_TIMER1)) 100 return (0); 101 102 if (ia->ia_niomem > 0 && 103 (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM)) 104 return (0); 105 106 if (ia->ia_nirq > 0 && 107 (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)) 108 return (0); 109 110 if (ia->ia_ndrq > 0 && 111 (ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ)) 112 return (0); 113 114 if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh)) 115 return 0; 116 bus_space_unmap(ia->ia_iot, att_ioh, 4); 117 118 ia->ia_io[0].ir_addr = IO_TIMER1; 119 ia->ia_io[0].ir_size = 4; 120 ia->ia_nio = 1; 121 122 ia->ia_niomem = 0; 123 ia->ia_nirq = 0; 124 ia->ia_ndrq = 0; 125 126 return 1; 127 } 128 129 static void 130 attimer_isa_attach(struct device *parent, struct device *self, 131 void *aux) 132 { 133 struct attimer_softc *sc = (struct attimer_softc *)self; 134 struct isa_attach_args *ia = aux; 135 136 sc->sc_iot = ia->ia_iot; 137 138 aprint_naive(": AT Timer\n"); 139 aprint_normal(": AT Timer\n"); 140 141 if (bus_space_map(sc->sc_iot, IO_TIMER1, 4, 0, &sc->sc_ioh) != 0) 142 aprint_error("%s: could not map registers\n", 143 sc->sc_dev.dv_xname); 144 else 145 attimer_attach(sc); 146 } 147