1 /* $NetBSD: pcppi_acpi.c,v 1.12 2010/03/05 14:00:17 jruoho 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 1.12 2010/03/05 14:00:17 jruoho 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 42 static int pcppi_acpi_match(device_t, cfdata_t, void *); 43 static void pcppi_acpi_attach(device_t, device_t, void *); 44 45 struct pcppi_acpi_softc { 46 struct pcppi_softc sc_pcppi; 47 }; 48 49 CFATTACH_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 56 static const char * const pcppi_acpi_ids[] = { 57 "PNP0800", /* AT-style speaker sound */ 58 NULL 59 }; 60 61 /* 62 * pcppi_acpi_match: autoconf(9) match routine 63 */ 64 static int 65 pcppi_acpi_match(device_t parent, cfdata_t match, void *aux) 66 { 67 struct acpi_attach_args *aa = aux; 68 69 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 70 return 0; 71 72 return acpi_match_hid(aa->aa_node->ad_devinfo, pcppi_acpi_ids); 73 } 74 75 /* 76 * pcppi_acpi_attach: autoconf(9) attach routine 77 */ 78 static void 79 pcppi_acpi_attach(device_t parent, device_t self, void *aux) 80 { 81 struct pcppi_acpi_softc *asc = device_private(self); 82 struct pcppi_softc *sc = &asc->sc_pcppi; 83 struct acpi_attach_args *aa = aux; 84 struct acpi_resources res; 85 struct acpi_io *io; 86 ACPI_STATUS rv; 87 88 sc->sc_dv = self; 89 90 /* parse resources */ 91 rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS", 92 &res, &acpi_resource_parse_ops_default); 93 if (ACPI_FAILURE(rv)) 94 return; 95 96 /* find our i/o registers */ 97 io = acpi_res_io(&res, 0); 98 if (io == NULL) { 99 aprint_error_dev(self, 100 "unable to find i/o register resource\n"); 101 goto out; 102 } 103 104 sc->sc_iot = aa->aa_iot; 105 sc->sc_size = io->ar_length; 106 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, 107 0, &sc->sc_ppi_ioh)) { 108 aprint_error_dev(self, "can't map i/o space\n"); 109 goto out; 110 } 111 112 pcppi_attach(sc); 113 114 out: 115 acpi_resource_cleanup(&res); 116 } 117