| 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 | |