1/* $NetBSD: attimer_acpi.c,v 1.15 2021/01/29 15:49:55 thorpej 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 * 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) 2002 Jared D. McNeill <jmcneill@invisible.ca> 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. The name of the author may not be used to endorse or promote products 42 * derived from this software without specific prior written permission. 43 * 44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 45 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 46 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 47 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 48 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 49 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 51 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 52 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 54 * SUCH DAMAGE. 55 */ 56 57/* 58 * ACPI attimer(4) attachment based on lpt_acpi.c by Jared D. McNeill. 59 */ 60 61#include <sys/cdefs.h> 62__KERNEL_RCSID(0, "$NetBSD: attimer_acpi.c,v 1.15 2021/01/29 15:49:55 thorpej Exp $"); 63 64#include <sys/param.h> 65#include <sys/device.h> 66#include <sys/systm.h> 67 68#include <dev/acpi/acpivar.h> 69 70#include <dev/ic/attimervar.h> 71 72static int attimer_acpi_match(device_t, cfdata_t, void *); 73static void attimer_acpi_attach(device_t, device_t, void *); 74 75CFATTACH_DECL3_NEW(attimer_acpi, sizeof(struct attimer_softc), 76 attimer_acpi_match, attimer_acpi_attach, attimer_detach, NULL, NULL, NULL, 77 DVF_DETACH_SHUTDOWN); 78 79/* 80 * Supported device IDs 81 */ 82 83static const struct device_compatible_entry compat_data[] = { 84 { .compat = "PNP0100" }, /* AT Timer */ 85 DEVICE_COMPAT_EOL 86}; 87 88/* 89 * attimer_acpi_match: autoconf(9) match routine 90 */ 91static int 92attimer_acpi_match(device_t parent, cfdata_t match, void *aux) 93{ 94 struct acpi_attach_args *aa = aux; 95 96 return acpi_compatible_match(aa, compat_data); 97} 98 99/* 100 * attimer_acpi_attach: autoconf(9) attach routine 101 */ 102static void 103attimer_acpi_attach(device_t parent, device_t self, void *aux) 104{ 105 struct attimer_softc *sc = device_private(self); 106 struct acpi_attach_args *aa = aux; 107 struct acpi_resources res; 108 struct acpi_io *io; 109 ACPI_STATUS rv; 110 111 sc->sc_dev = self; 112 113 /* parse resources */ 114 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 115 &res, &acpi_resource_parse_ops_default); 116 if (ACPI_FAILURE(rv)) 117 return; 118 119 /* find our i/o registers */ 120 io = acpi_res_io(&res, 0); 121 if (io == NULL) { 122 aprint_error_dev(self, 123 "unable to find i/o register resource\n"); 124 goto out; 125 } 126 127 sc->sc_iot = aa->aa_iot; 128 sc->sc_size = io->ar_length; 129 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, 130 0, &sc->sc_ioh) != 0) { 131 aprint_error_dev(self, "can't map i/o space\n"); 132 goto out; 133 } 134 135 attimer_attach(sc); 136 137 out: 138 acpi_resource_cleanup(&res); 139} 140