1 /* $NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright (c) 1996 Carnegie-Mellon University. 31 * All rights reserved. 32 * 33 * Author: Chris G. Demetriou 34 * 35 * Permission to use, copy, modify and distribute this software and 36 * its documentation is hereby granted, provided that both the copyright 37 * notice and this permission notice appear in all copies of the 38 * software, derivative works or modified versions, and any portions 39 * thereof, and that both notices appear in supporting documentation. 40 * 41 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 42 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 43 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 44 * 45 * Carnegie Mellon requests users of this software to return to 46 * 47 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 48 * School of Computer Science 49 * Carnegie Mellon University 50 * Pittsburgh PA 15213-3890 51 * 52 * any improvements or extensions that they make and grant Carnegie the 53 * rights to redistribute these changes. 54 */ 55 56 /* 57 * ISA attachment for attimer(4) 58 */ 59 60 #include <sys/cdefs.h> 61 __KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.13 2009/08/23 16:02:53 jmcneill Exp $"); 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/errno.h> 66 #include <sys/ioctl.h> 67 #include <sys/device.h> 68 #include <sys/proc.h> 69 70 #include <sys/bus.h> 71 72 #include <dev/ic/attimervar.h> 73 74 #include <dev/isa/isareg.h> 75 #include <dev/isa/isavar.h> 76 77 static int attimer_isa_match(device_t, cfdata_t, void *); 78 static void attimer_isa_attach(device_t, device_t, void *); 79 80 CFATTACH_DECL_NEW(attimer_isa, sizeof(struct attimer_softc), 81 attimer_isa_match, attimer_isa_attach, attimer_detach, NULL); 82 83 static int 84 attimer_isa_match(device_t parent, cfdata_t match, void *aux) 85 { 86 struct isa_attach_args *ia = aux; 87 bus_space_handle_t att_ioh; 88 89 if (ISA_DIRECT_CONFIG(ia)) 90 return (0); 91 92 /* If values are hardwired to something that they can't be, punt. */ 93 if (ia->ia_nio < 1 || 94 (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT && 95 ia->ia_io[0].ir_addr != IO_TIMER1)) 96 return (0); 97 98 if (ia->ia_niomem > 0 && 99 (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM)) 100 return (0); 101 102 if (ia->ia_nirq > 0 && 103 (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)) 104 return (0); 105 106 if (ia->ia_ndrq > 0 && 107 (ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ)) 108 return (0); 109 110 if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh)) 111 return 0; 112 bus_space_unmap(ia->ia_iot, att_ioh, 4); 113 114 ia->ia_io[0].ir_addr = IO_TIMER1; 115 ia->ia_io[0].ir_size = 4; 116 ia->ia_nio = 1; 117 118 ia->ia_niomem = 0; 119 ia->ia_nirq = 0; 120 ia->ia_ndrq = 0; 121 122 return 1; 123 } 124 125 static void 126 attimer_isa_attach(device_t parent, device_t self, void *aux) 127 { 128 struct attimer_softc *sc = device_private(self); 129 struct isa_attach_args *ia = aux; 130 131 sc->sc_dev = self; 132 sc->sc_iot = ia->ia_iot; 133 134 aprint_naive("\n"); 135 aprint_normal("\n"); 136 137 sc->sc_size = 4; 138 if (bus_space_map(sc->sc_iot, IO_TIMER1, sc->sc_size, 0, 139 &sc->sc_ioh) != 0) 140 aprint_error_dev(self, "could not map registers\n"); 141 else 142 attimer_attach(sc); 143 } 144