1/* $NetBSD: ug_acpi.c,v 1.7 2021/01/29 15:49:55 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 2007 Mihai Chelaru <kefren@netbsd.ro> 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. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: ug_acpi.c,v 1.7 2021/01/29 15:49:55 thorpej Exp $"); 30 31#include <sys/param.h> 32#include <sys/device.h> 33#include <sys/systm.h> 34 35#include <dev/acpi/acpivar.h> 36 37#include <dev/ic/ugreg.h> 38#include <dev/ic/ugvar.h> 39 40/* autoconf(9) functions */ 41static int ug_acpi_match(device_t, cfdata_t, void *); 42static void ug_acpi_attach(device_t, device_t, void *); 43 44CFATTACH_DECL_NEW(ug_acpi, sizeof(struct ug_softc), ug_acpi_match, 45 ug_acpi_attach, NULL, NULL); 46 47/* 48 * Supported devices 49 * XXX: only uGuru 2005 for now 50 */ 51 52static const struct device_compatible_entry compat_data[] = { 53 { .compat = "ABT2005" }, /* uGuru 2005 */ 54 DEVICE_COMPAT_EOL 55}; 56 57static int 58ug_acpi_match(device_t parent, cfdata_t match, void *aux) 59{ 60 struct acpi_attach_args *aa = aux; 61 62 return acpi_compatible_match(aa, compat_data); 63} 64 65static void 66ug_acpi_attach(device_t parent, device_t self, void *aux) 67{ 68 struct ug_softc *sc = device_private(self); 69 struct acpi_attach_args *aa = aux; 70 struct acpi_resources res; 71 struct acpi_io *io; 72 bus_space_handle_t ioh; 73 ACPI_STATUS rv; 74 75 /* parse resources */ 76 rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 77 &res, &acpi_resource_parse_ops_default); 78 if (ACPI_FAILURE(rv)) 79 return; 80 81 /* find our i/o registers */ 82 io = acpi_res_io(&res, 0); 83 if (io == NULL) { 84 aprint_error_dev(self, 85 "unable to find i/o register resource\n"); 86 acpi_resource_cleanup(&res); 87 return; 88 } 89 90 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 91 0, &ioh)) { 92 aprint_error_dev(self, "can't map i/o space\n"); 93 acpi_resource_cleanup(&res); 94 return; 95 } 96 97 aprint_normal("%s", device_xname(self)); 98 99 sc->version = 2; /* uGuru 2005 */ 100 sc->sc_ioh = ioh; 101 sc->sc_iot = aa->aa_iot; 102 ug2_attach(self); 103 104 acpi_resource_cleanup(&res); 105} 106