1 /* $NetBSD: attimer_acpi.c,v 1.7 2007/10/19 11:59:35 ad 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 1.7 2007/10/19 11:59:35 ad 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 86 static int attimer_acpi_match(struct device *, struct cfdata *, void *); 87 static void attimer_acpi_attach(struct device *, struct device *, void *); 88 89 CFATTACH_DECL(attimer_acpi, sizeof(struct attimer_softc), attimer_acpi_match, 90 attimer_acpi_attach, NULL, NULL); 91 92 /* 93 * Supported device IDs 94 */ 95 96 static const char * const attimer_acpi_ids[] = { 97 "PNP0100", /* AT Timer */ 98 NULL 99 }; 100 101 /* 102 * attimer_acpi_match: autoconf(9) match routine 103 */ 104 static int 105 attimer_acpi_match(struct device *parent, 106 struct cfdata *match, void *aux) 107 { 108 struct acpi_attach_args *aa = aux; 109 110 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 111 return 0; 112 113 return acpi_match_hid(aa->aa_node->ad_devinfo, attimer_acpi_ids); 114 } 115 116 /* 117 * attimer_acpi_attach: autoconf(9) attach routine 118 */ 119 static void 120 attimer_acpi_attach(struct device *parent, struct device *self, 121 void *aux) 122 { 123 struct attimer_softc *sc = (struct attimer_softc *)self; 124 struct acpi_attach_args *aa = aux; 125 struct acpi_resources res; 126 struct acpi_io *io; 127 ACPI_STATUS rv; 128 129 aprint_naive(": AT Timer\n"); 130 aprint_normal(": AT Timer\n"); 131 132 /* parse resources */ 133 rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 134 &res, &acpi_resource_parse_ops_default); 135 if (ACPI_FAILURE(rv)) 136 return; 137 138 /* find our i/o registers */ 139 io = acpi_res_io(&res, 0); 140 if (io == NULL) { 141 aprint_error("%s: unable to find i/o register resource\n", 142 sc->sc_dev.dv_xname); 143 goto out; 144 } 145 146 sc->sc_iot = aa->aa_iot; 147 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 148 0, &sc->sc_ioh)) { 149 aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 150 goto out; 151 } 152 153 attimer_attach(sc); 154 155 out: 156 acpi_resource_cleanup(&res); 157 } 158