1/* $NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> 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/* 29 * ACPI pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.13 2021/01/29 15:49:55 thorpej Exp $"); 34 35#include <sys/param.h> 36#include <sys/device.h> 37 38#include <dev/acpi/acpivar.h> 39 40#include <dev/isa/pcppivar.h> 41 42static int pcppi_acpi_match(device_t, cfdata_t, void *); 43static void pcppi_acpi_attach(device_t, device_t, void *); 44 45struct pcppi_acpi_softc { 46 struct pcppi_softc sc_pcppi; 47}; 48 49CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc), 50 pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL); 51 52/* 53 * Supported device IDs 54 */ 55 56static const struct device_compatible_entry compat_data[] = { 57 { .compat = "PNP0800" }, /* AT-style speaker sound */ 58 DEVICE_COMPAT_EOL 59}; 60 61/* 62 * pcppi_acpi_match: autoconf(9) match routine 63 */ 64static int 65pcppi_acpi_match(device_t parent, cfdata_t match, void *aux) 66{ 67 struct acpi_attach_args *aa = aux; 68 69 return acpi_compatible_match(aa, compat_data); 70} 71 72/* 73 * pcppi_acpi_attach: autoconf(9) attach routine 74 */ 75static void 76pcppi_acpi_attach(device_t parent, device_t self, void *aux) 77{ 78 struct pcppi_acpi_softc *asc = device_private(self); 79 struct pcppi_softc *sc = &asc->sc_pcppi; 80 struct acpi_attach_args *aa = aux; 81 struct acpi_resources res; 82 struct acpi_io *io; 83 ACPI_STATUS rv; 84 85 sc->sc_dv = self; 86 87 /* parse resources */ 88 rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS", 89 &res, &acpi_resource_parse_ops_default); 90 if (ACPI_FAILURE(rv)) 91 return; 92 93 /* find our i/o registers */ 94 io = acpi_res_io(&res, 0); 95 if (io == NULL) { 96 aprint_error_dev(self, 97 "unable to find i/o register resource\n"); 98 goto out; 99 } 100 101 sc->sc_iot = aa->aa_iot; 102 sc->sc_size = io->ar_length; 103 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, 104 0, &sc->sc_ppi_ioh)) { 105 aprint_error_dev(self, "can't map i/o space\n"); 106 goto out; 107 } 108 109 pcppi_attach(sc); 110 111 out: 112 acpi_resource_cleanup(&res); 113} 114