1 /* $NetBSD: pcppi_acpi.c,v 1.10 2008/03/04 16:35:18 cube 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 1.10 2008/03/04 16:35:18 cube Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/errno.h> 38 #include <sys/ioctl.h> 39 #include <sys/device.h> 40 #include <sys/proc.h> 41 42 #include <sys/bus.h> 43 44 #include <dev/acpi/acpica.h> 45 #include <dev/acpi/acpireg.h> 46 #include <dev/acpi/acpivar.h> 47 48 #include <dev/isa/pcppivar.h> 49 50 static int pcppi_acpi_match(device_t, cfdata_t, void *); 51 static void pcppi_acpi_attach(device_t, device_t, void *); 52 53 struct pcppi_acpi_softc { 54 struct pcppi_softc sc_pcppi; 55 }; 56 57 CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc), 58 pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL); 59 60 /* 61 * Supported device IDs 62 */ 63 64 static const char * const pcppi_acpi_ids[] = { 65 "PNP0800", /* AT-style speaker sound */ 66 NULL 67 }; 68 69 /* 70 * pcppi_acpi_match: autoconf(9) match routine 71 */ 72 static int 73 pcppi_acpi_match(device_t parent, cfdata_t match, void *aux) 74 { 75 struct acpi_attach_args *aa = aux; 76 77 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 78 return 0; 79 80 return acpi_match_hid(aa->aa_node->ad_devinfo, pcppi_acpi_ids); 81 } 82 83 /* 84 * pcppi_acpi_attach: autoconf(9) attach routine 85 */ 86 static void 87 pcppi_acpi_attach(device_t parent, device_t self, void *aux) 88 { 89 struct pcppi_acpi_softc *asc = device_private(self); 90 struct pcppi_softc *sc = &asc->sc_pcppi; 91 struct acpi_attach_args *aa = aux; 92 struct acpi_resources res; 93 struct acpi_io *io; 94 ACPI_STATUS rv; 95 96 aprint_naive("\n"); 97 aprint_normal("\n"); 98 99 sc->sc_dv = self; 100 101 /* parse resources */ 102 rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS", 103 &res, &acpi_resource_parse_ops_default); 104 if (ACPI_FAILURE(rv)) 105 return; 106 107 /* find our i/o registers */ 108 io = acpi_res_io(&res, 0); 109 if (io == NULL) { 110 aprint_error_dev(self, 111 "unable to find i/o register resource\n"); 112 goto out; 113 } 114 115 sc->sc_iot = aa->aa_iot; 116 sc->sc_size = io->ar_length; 117 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, 118 0, &sc->sc_ppi_ioh)) { 119 aprint_error_dev(self, "can't map i/o space\n"); 120 goto out; 121 } 122 123 pcppi_attach(sc); 124 125 out: 126 acpi_resource_cleanup(&res); 127 } 128