1 /* $NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/systm.h> 38 39 #include <dev/acpi/acpireg.h> 40 #include <dev/acpi/acpivar.h> 41 #include <dev/acpi/acpi_intr.h> 42 43 #include <dev/ic/spicvar.h> 44 45 #define _COMPONENT ACPI_RESOURCE_COMPONENT 46 ACPI_MODULE_NAME ("spic_acpi") 47 48 struct spic_acpi_softc { 49 struct spic_softc sc_spic; /* spic device */ 50 51 struct acpi_devnode *sc_node; /* our ACPI devnode */ 52 53 void *sc_ih; 54 }; 55 56 static const struct device_compatible_entry compat_data[] = { 57 { .compat = "SNY6001" }, 58 DEVICE_COMPAT_EOL 59 }; 60 61 static int spic_acpi_match(device_t, cfdata_t, void *); 62 static void spic_acpi_attach(device_t, device_t, void *); 63 64 CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc), 65 spic_acpi_match, spic_acpi_attach, NULL, NULL); 66 67 68 static int 69 spic_acpi_match(device_t parent, cfdata_t match, void *aux) 70 { 71 struct acpi_attach_args *aa = aux; 72 73 return acpi_compatible_match(aa, compat_data); 74 } 75 76 static void 77 spic_acpi_attach(device_t parent, device_t self, void *aux) 78 { 79 struct spic_acpi_softc *sc = device_private(self); 80 struct acpi_attach_args *aa = aux; 81 struct acpi_io *io; 82 struct acpi_irq *irq; 83 struct acpi_resources res; 84 85 ACPI_STATUS rv; 86 87 sc->sc_spic.sc_dev = self; 88 sc->sc_node = aa->aa_node; 89 90 /* Parse our resources. */ 91 rv = acpi_resource_parse(self, sc->sc_node->ad_handle, 92 "_CRS", &res, &acpi_resource_parse_ops_default); 93 if (ACPI_FAILURE(rv)) 94 return; 95 96 sc->sc_spic.sc_iot = aa->aa_iot; 97 io = acpi_res_io(&res, 0); 98 if (io == NULL) { 99 aprint_error_dev(self, "unable to find io resource\n"); 100 goto out; 101 } 102 if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length, 103 0, &sc->sc_spic.sc_ioh) != 0) { 104 aprint_error_dev(self, "unable to map data register\n"); 105 goto out; 106 } 107 irq = acpi_res_irq(&res, 0); 108 if (irq == NULL) { 109 aprint_error_dev(self, "unable to find irq resource\n"); 110 /* XXX unmap */ 111 goto out; 112 } 113 #if 0 114 sc->sc_ih = acpi_intr_establish(self, 115 (uint64_t)(uintptr_t)aa->aa_node->ad_handle, 116 IPL_TTY, false, spic_intr, sc, device_xname(self)); 117 if (sc->sc_ih == NULL) { 118 aprint_error_dev(self, "unable to establish interrupt\n"); 119 goto out; 120 } 121 #endif 122 123 if (!pmf_device_register(self, spic_suspend, spic_resume)) 124 aprint_error_dev(self, "couldn't establish power handler\n"); 125 else 126 pmf_class_input_register(self); 127 128 spic_attach(&sc->sc_spic); 129 out: 130 acpi_resource_cleanup(&res); 131 } 132