attimer_acpi.c revision 1.9
1/* $NetBSD: attimer_acpi.c,v 1.9 2008/01/03 01:21:45 dyoung Exp $ */ 2 3/* 4 * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Quentin Garnier. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/* 40 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 56 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 57 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 58 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 59 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64/* 65 * ACPI attimer(4) attachment based on lpt_acpi.c by Jared D. McNeill. 66 */ 67 68#include <sys/cdefs.h> 69__KERNEL_RCSID(0, "$NetBSD: attimer_acpi.c,v 1.9 2008/01/03 01:21:45 dyoung Exp $"); 70 71#include <sys/param.h> 72#include <sys/systm.h> 73#include <sys/errno.h> 74#include <sys/ioctl.h> 75#include <sys/device.h> 76#include <sys/proc.h> 77 78#include <sys/bus.h> 79 80#include <dev/acpi/acpica.h> 81#include <dev/acpi/acpireg.h> 82#include <dev/acpi/acpivar.h> 83 84#include <dev/ic/attimervar.h> 85 86static int attimer_acpi_match(device_t, struct cfdata *, void *); 87static void attimer_acpi_attach(device_t, device_t, void *); 88 89CFATTACH_DECL(attimer_acpi, sizeof(struct attimer_softc), attimer_acpi_match, 90 attimer_acpi_attach, attimer_detach, NULL); 91 92/* 93 * Supported device IDs 94 */ 95 96static const char * const attimer_acpi_ids[] = { 97 "PNP0100", /* AT Timer */ 98 NULL 99}; 100 101/* 102 * attimer_acpi_match: autoconf(9) match routine 103 */ 104static int 105attimer_acpi_match(device_t parent, struct cfdata *match, void *aux) 106{ 107 struct acpi_attach_args *aa = aux; 108 109 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 110 return 0; 111 112 return acpi_match_hid(aa->aa_node->ad_devinfo, attimer_acpi_ids); 113} 114 115/* 116 * attimer_acpi_attach: autoconf(9) attach routine 117 */ 118static void 119attimer_acpi_attach(device_t parent, device_t self, void *aux) 120{ 121 struct attimer_softc *sc = device_private(self); 122 struct acpi_attach_args *aa = aux; 123 struct acpi_resources res; 124 struct acpi_io *io; 125 ACPI_STATUS rv; 126 127 aprint_naive(": AT Timer\n"); 128 aprint_normal(": AT Timer\n"); 129 130 /* parse resources */ 131 rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 132 &res, &acpi_resource_parse_ops_default); 133 if (ACPI_FAILURE(rv)) 134 return; 135 136 /* find our i/o registers */ 137 io = acpi_res_io(&res, 0); 138 if (io == NULL) { 139 aprint_error("%s: unable to find i/o register resource\n", 140 sc->sc_dev.dv_xname); 141 goto out; 142 } 143 144 sc->sc_iot = aa->aa_iot; 145 sc->sc_size = io->ar_length; 146 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, 147 0, &sc->sc_ioh) != 0) { 148 aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 149 goto out; 150 } 151 152 attimer_attach(sc); 153 154 out: 155 acpi_resource_cleanup(&res); 156} 157